/* roulang page: index */
:root {
            --carbon: #0A0D0C;
            --acid: #C5FF3C;
            --acid-alt: #AEEA00;
            --cloud: #F4F6F4;
            --coldgray: #B8C2BD;
            --borderc: #202826;
            --graytext: #8A9690;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px rgba(10, 13, 12, 0.08);
            --shadow-hover: 0 8px 32px rgba(10, 13, 12, 0.16);
            --transition: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'sans-serif';
            --font-condensed: 'Roboto Condensed', 'DIN Condensed', 'Noto Sans SC', 'sans-serif';
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-weight: 400;
            line-height: 1.75;
            color: var(--carbon);
            background-color: var(--cloud);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--acid);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container-main {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--carbon);
            border-bottom: 1px solid rgba(197, 255, 60, 0.12);
            transition: background-color var(--transition);
        }

        .site-header.scrolled {
            background-color: rgba(10, 13, 12, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.6rem;
            letter-spacing: 0.14em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo .logo-mark {
            display: inline-block;
            width: 14px;
            height: 14px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            margin-right: 4px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 500;
            color: #d8e0da;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: #fff;
            background-color: rgba(197, 255, 60, 0.08);
            border-color: rgba(197, 255, 60, 0.4);
        }

        .nav-links a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        .nav-cta {
            margin-left: 8px;
            padding: 10px 24px;
            background-color: var(--acid);
            color: var(--carbon) !important;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.92rem;
            transition: all var(--transition);
        }

        .nav-cta:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 16px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon) !important;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(197, 255, 60, 0.25);
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: rgba(197, 255, 60, 0.6);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 420px;
            height: 100vh;
            background-color: var(--carbon);
            z-index: 200;
            padding: 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            border-left: 1px solid rgba(197, 255, 60, 0.15);
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .mobile-drawer .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-drawer nav a {
            display: block;
            padding: 14px 16px;
            margin-bottom: 6px;
            border-radius: 8px;
            color: #d8e0da;
            font-size: 1rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all var(--transition);
        }

        .mobile-drawer nav a:hover {
            background-color: rgba(197, 255, 60, 0.08);
            color: #fff;
        }

        .mobile-drawer nav a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.6);
            z-index: 150;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.open {
            opacity: 1;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-drawer {
                display: block;
            }
            .drawer-overlay {
                display: block;
                pointer-events: none;
            }
            .drawer-overlay.open {
                pointer-events: auto;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            background-color: var(--carbon);
            background-image: linear-gradient(160deg, rgba(10, 13, 12, 0.85) 0%, rgba(10, 13, 12, 0.55) 50%, rgba(10, 13, 12, 0.88) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 88vh;
            display: flex;
            align-items: center;
            padding: 96px 0 72px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(circle at 20% 40%, rgba(197, 255, 60, 0.06) 0%, transparent 50%), radial-gradient(circle at 80% 30%, rgba(197, 255, 60, 0.04) 0%, transparent 40%);
            pointer-events: none;
        }

        .hero-grid-overlay {
            position: absolute;
            inset: 0;
            pointer-events: none;
            background-image: linear-gradient(rgba(197, 255, 60, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(197, 255, 60, 0.03) 1px, transparent 1px);
            background-size: 48px 48px;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 999px;
            border: 1px solid rgba(197, 255, 60, 0.4);
            background-color: rgba(197, 255, 60, 0.08);
            color: var(--acid);
            font-size: 0.88rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 24px;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background-color: var(--acid);
            border-radius: 50%;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(197, 255, 60, 0.5);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(197, 255, 60, 0);
            }
        }

        .hero-title {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 3.8rem;
            line-height: 1.12;
            letter-spacing: 0.04em;
            color: #ffffff;
            margin-bottom: 24px;
            animation: fade-up 0.6s ease both;
            animation-delay: 0.1s;
        }

        .hero-title .highlight {
            color: var(--acid);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.78);
            max-width: 610px;
            margin-bottom: 36px;
            animation: fade-up 0.6s ease both;
            animation-delay: 0.25s;
        }

        .hero-ctas {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            animation: fade-up 0.6s ease both;
            animation-delay: 0.4s;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 32px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.04em;
            transition: all var(--transition);
            border: 2px solid var(--acid);
        }

        .btn-primary:hover {
            background-color: #d4ff5e;
            border-color: #d4ff5e;
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(197, 255, 60, 0.4);
            color: var(--carbon);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 32px;
            background-color: transparent;
            color: #ffffff;
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.04em;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-3px);
            color: #ffffff;
        }

        .hero-metrics {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            animation: fade-up 0.6s ease both;
            animation-delay: 0.55s;
        }

        .hero-metric-item .metric-number {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.6rem;
            color: var(--acid);
            line-height: 1;
        }

        .hero-metric-item .metric-label {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        @keyframes fade-up {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: auto;
                padding: 72px 0 48px;
            }
            .hero-title {
                font-size: 2.2rem;
                line-height: 1.2;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-metrics {
                gap: 24px;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .hero-metric-item .metric-number {
                font-size: 1.8rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 24px;
                font-size: 0.92rem;
                width: 100%;
                justify-content: center;
            }
        }

        /* 通用Section */
        .section-block {
            padding: 96px 0;
        }

        .section-block.alt-bg {
            background-color: #ffffff;
        }

        .section-block.dark-bg {
            background-color: var(--carbon);
            color: #fff;
        }

        .section-header {
            margin-bottom: 56px;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.16em;
            text-transform: uppercase;
            color: var(--graytext);
            margin-bottom: 12px;
        }

        .dark-bg .section-tag {
            color: rgba(197, 255, 60, 0.6);
        }

        .section-title {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.6rem;
            line-height: 1.2;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
        }

        .dark-bg .section-title {
            color: #fff;
        }

        .section-desc {
            font-size: 1.08rem;
            line-height: 1.85;
            color: var(--graytext);
            max-width: 640px;
        }

        .dark-bg .section-desc {
            color: rgba(255, 255, 255, 0.65);
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .section-header {
                margin-bottom: 36px;
            }
        }

        /* 功能分组 - 非对称网格 */
        .feature-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
        }

        .feature-card {
            position: relative;
            background-color: #fff;
            border: 1px solid rgba(10, 13, 12, 0.06);
            border-radius: var(--radius-md);
            padding: 32px;
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 240px;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--acid);
            box-shadow: var(--shadow-hover);
        }

        .feature-card .card-number {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 3.5rem;
            color: rgba(10, 13, 12, 0.06);
            line-height: 1;
            margin-bottom: 16px;
            transition: color var(--transition);
        }

        .feature-card:hover .card-number {
            color: var(--acid);
        }

        .feature-card .card-title {
            font-family: var(--font-condensed);
            font-weight: 700;
            font-size: 1.4rem;
            margin-bottom: 12px;
            color: var(--carbon);
        }

        .feature-card .card-text {
            font-size: 0.98rem;
            color: var(--graytext);
            line-height: 1.75;
        }

        .feature-card .card-img {
            margin-top: 20px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 16/9;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .feature-card:hover .card-img {
            transform: scale(1.04);
        }

        .feature-card.wide {
            grid-row: span 1;
        }

        @media (max-width: 768px) {
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .feature-card {
                min-height: auto;
                padding: 24px;
            }
            .feature-card .card-number {
                font-size: 2.5rem;
            }
        }

        /* 合集目录 */
        .collection-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .collection-item {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 4/5;
            display: flex;
            align-items: flex-end;
            transition: all var(--transition);
            cursor: pointer;
        }

        .collection-item img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .collection-item:hover img {
            transform: scale(1.06);
        }

        .collection-item::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 13, 12, 0.85) 0%, rgba(10, 13, 12, 0.2) 60%, transparent 100%);
        }

        .collection-item .collection-label {
            position: relative;
            z-index: 2;
            padding: 20px;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .collection-item .collection-count {
            position: relative;
            z-index: 2;
            padding: 0 20px 20px;
            color: var(--acid);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        @media (max-width: 1024px) {
            .collection-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .collection-grid {
                grid-template-columns: 1fr;
            }
            .collection-item {
                aspect-ratio: 16/10;
            }
        }

        /* 使用场景 - 选项卡 */
        .scene-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }

        .scene-tab {
            padding: 10px 20px;
            border-radius: 999px;
            border: 1px solid rgba(10, 13, 12, 0.15);
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--graytext);
            transition: all var(--transition);
            background-color: #fff;
        }

        .scene-tab:hover {
            border-color: var(--acid);
            color: var(--carbon);
        }

        .scene-tab.active {
            background-color: var(--acid);
            border-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        .scene-panels {
            position: relative;
        }

        .scene-panel {
            display: none;
            animation: fade-up 0.4s ease;
        }

        .scene-panel.active {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .scene-panel .scene-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/10;
            object-fit: cover;
        }

        .scene-panel .scene-title {
            font-family: var(--font-condensed);
            font-weight: 700;
            font-size: 1.6rem;
            margin-bottom: 12px;
        }

        .scene-panel .scene-text {
            color: var(--graytext);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .scene-panel .scene-points {
            list-style: none;
            padding: 0;
        }

        .scene-panel .scene-points li {
            padding: 8px 0;
            padding-left: 24px;
            position: relative;
            color: var(--carbon);
            font-size: 0.94rem;
        }

        .scene-panel .scene-points li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 16px;
            width: 8px;
            height: 8px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }

        @media (max-width: 768px) {
            .scene-panel.active {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .scene-tabs {
                gap: 8px;
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 8px;
            }
            .scene-tab {
                white-space: nowrap;
                font-size: 0.85rem;
                padding: 8px 16px;
            }
        }

        /* 任务进度 */
        .progress-wrap {
            background-color: #fff;
            border-radius: var(--radius-md);
            padding: 40px;
            border: 1px solid rgba(10, 13, 12, 0.06);
        }

        .progress-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(10, 13, 12, 0.06);
        }

        .progress-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .progress-check {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 2px solid var(--acid);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--acid);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 4px;
        }

        .progress-check.done {
            background-color: var(--acid);
            color: var(--carbon);
        }

        .progress-info h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
        }

        .progress-info p {
            font-size: 0.92rem;
            color: var(--graytext);
        }

        /* 成功案例 */
        .case-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background-color: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(10, 13, 12, 0.06);
        }

        .case-img-wrap {
            aspect-ratio: 16/10;
            overflow: hidden;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-content {
            padding: 40px;
        }

        .case-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin: 24px 0;
        }

        .case-metric .cm-value {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.8rem;
            color: var(--acid);
            line-height: 1;
        }

        .case-metric .cm-label {
            font-size: 0.88rem;
            color: var(--graytext);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .case-block {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .case-content {
                padding: 24px;
            }
            .case-metrics {
                gap: 20px;
            }
            .case-metric .cm-value {
                font-size: 2rem;
            }
        }

        /* 价格 */
        .pricing-grid {
            display: grid;
            grid-template-columns: 1fr 1.15fr 1fr;
            gap: 24px;
            align-items: stretch;
        }

        .pricing-card {
            background-color: #fff;
            border-radius: var(--radius-md);
            padding: 36px 28px;
            border: 1px solid rgba(10, 13, 12, 0.08);
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
            position: relative;
        }

        .pricing-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(197, 255, 60, 0.5);
        }

        .pricing-card.featured {
            border: 2px solid var(--acid);
            padding: 44px 28px;
            transform: translateY(-12px);
            background-color: var(--carbon);
            color: #fff;
        }

        .pricing-card.featured:hover {
            transform: translateY(-16px);
            box-shadow: 0 16px 48px rgba(197, 255, 60, 0.2);
        }

        .pricing-badge {
            display: inline-block;
            padding: 4px 12px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
            align-self: flex-start;
        }

        .pricing-name {
            font-family: var(--font-condensed);
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        .pricing-card.featured .pricing-name {
            color: #fff;
        }

        .pricing-amount {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.8rem;
            line-height: 1;
            margin-bottom: 4px;
        }

        .pricing-card.featured .pricing-amount {
            color: var(--acid);
        }

        .pricing-period {
            font-size: 0.88rem;
            color: var(--graytext);
            margin-bottom: 24px;
        }

        .pricing-card.featured .pricing-period {
            color: rgba(255, 255, 255, 0.5);
        }

        .pricing-features {
            list-style: none;
            padding: 0;
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .pricing-features li {
            padding: 8px 0;
            padding-left: 24px;
            position: relative;
            font-size: 0.94rem;
            line-height: 1.6;
            color: var(--graytext);
        }

        .pricing-card.featured .pricing-features li {
            color: rgba(255, 255, 255, 0.75);
        }

        .pricing-features li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 16px;
            width: 8px;
            height: 8px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }

        .pricing-btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: 999px;
            text-align: center;
            font-weight: 700;
            font-size: 0.92rem;
            transition: all var(--transition);
        }

        .pricing-btn.primary-btn {
            background-color: var(--acid);
            color: var(--carbon);
        }

        .pricing-btn.primary-btn:hover {
            background-color: #d4ff5e;
            box-shadow: 0 6px 24px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
        }

        .pricing-btn.outline-btn {
            border: 1px solid rgba(10, 13, 12, 0.2);
            color: var(--carbon);
            background-color: transparent;
        }

        .pricing-btn.outline-btn:hover {
            border-color: var(--acid);
            color: var(--carbon);
            background-color: rgba(197, 255, 60, 0.06);
        }

        .pricing-card.featured .pricing-btn.outline-btn {
            border-color: rgba(255, 255, 255, 0.3);
            color: #fff;
        }

        .pricing-card.featured .pricing-btn.outline-btn:hover {
            border-color: var(--acid);
            background-color: rgba(197, 255, 60, 0.1);
            color: var(--acid);
        }

        @media (max-width: 1024px) {
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .pricing-card.featured {
                transform: translateY(0);
                order: -1;
            }
            .pricing-card.featured:hover {
                transform: translateY(-4px);
            }
        }

        /* 资讯动态 */
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.6fr;
            gap: 32px;
        }

        .news-list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid rgba(10, 13, 12, 0.06);
            transition: all var(--transition);
        }

        .news-list-item:hover {
            padding-left: 12px;
        }

        .news-list-item .news-meta {
            font-size: 0.82rem;
            color: var(--graytext);
            font-weight: 600;
            letter-spacing: 0.04em;
            flex-shrink: 0;
            min-width: 60px;
        }

        .news-list-item h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
            color: var(--carbon);
        }

        .news-list-item p {
            font-size: 0.92rem;
            color: var(--graytext);
            line-height: 1.7;
        }

        .news-sidebar {
            background-color: #fff;
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid rgba(10, 13, 12, 0.06);
            align-self: start;
        }

        .news-sidebar h3 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 16px;
        }

        .news-sidebar ul {
            list-style: none;
            padding: 0;
        }

        .news-sidebar ul li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(10, 13, 12, 0.05);
            font-size: 0.92rem;
            color: var(--graytext);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .news-sidebar ul li::before {
            content: '';
            width: 6px;
            height: 6px;
            background-color: var(--acid);
            border-radius: 50%;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
        }

        /* 用户评价 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background-color: #fff;
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid rgba(10, 13, 12, 0.06);
            transition: all var(--transition);
        }

        .review-card:hover {
            transform: translateY(-4px);
            border-color: rgba(197, 255, 60, 0.5);
            box-shadow: var(--shadow-hover);
        }

        .review-stars {
            color: var(--acid);
            font-size: 1rem;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }

        .review-text {
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--carbon);
            margin-bottom: 16px;
        }

        .review-author {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--graytext);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .review-author .avatar-placeholder {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: var(--carbon);
            color: var(--acid);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.82rem;
        }

        @media (max-width: 1024px) {
            .reviews-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .reviews-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 合作伙伴 */
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .partner-tag {
            background-color: #fff;
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid rgba(10, 13, 12, 0.06);
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all var(--transition);
        }

        .partner-tag:hover {
            transform: translateY(-2px);
            border-color: rgba(197, 255, 60, 0.6);
        }

        .partner-tag .pt-name {
            font-weight: 700;
            font-size: 1rem;
            color: var(--carbon);
        }

        .partner-tag .pt-desc {
            font-size: 0.88rem;
            color: var(--graytext);
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .partners-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
        }

        .faq-item {
            border-bottom: 1px solid rgba(10, 13, 12, 0.08);
            padding: 20px 0;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-weight: 700;
            font-size: 1.08rem;
            cursor: pointer;
            transition: color var(--transition);
        }

        .faq-question:hover {
            color: var(--carbon);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid rgba(10, 13, 12, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition);
            font-size: 1.2rem;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            border-color: var(--acid);
            background-color: var(--acid);
            color: var(--carbon);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            color: var(--graytext);
            font-size: 0.98rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 16px;
        }

        /* 表单 */
        .form-wrap {
            background-color: #fff;
            border-radius: var(--radius-md);
            padding: 40px;
            border: 1px solid rgba(10, 13, 12, 0.06);
            max-width: 680px;
            margin: 0 auto;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--carbon);
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid rgba(10, 13, 12, 0.12);
            border-radius: var(--radius-sm);
            font-size: 0.98rem;
            transition: all var(--transition);
            background-color: #fafafa;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--acid);
            box-shadow: 0 0 0 3px rgba(197, 255, 60, 0.15);
            background-color: #fff;
        }

        .form-submit {
            padding: 14px 32px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            width: 100%;
        }

        .form-submit:hover {
            background-color: #d4ff5e;
            box-shadow: 0 6px 24px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
        }

        /* 品牌介绍 */
        .brand-story {
            background-color: #fff;
            border-radius: var(--radius-lg);
            padding: 48px;
            border: 1px solid rgba(10, 13, 12, 0.06);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .brand-story .brand-text {
            font-size: 1.02rem;
            line-height: 1.9;
            color: var(--carbon);
        }

        .brand-story .brand-text p + p {
            margin-top: 16px;
        }

        .brand-story .brand-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .brand-story .brand-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        @media (max-width: 768px) {
            .brand-story {
                grid-template-columns: 1fr;
                padding: 28px;
                gap: 20px;
            }
            .form-wrap {
                padding: 24px;
            }
        }

        /* Footer */
        .site-footer {
            background-color: var(--carbon);
            color: #fff;
            padding: 64px 0 32px;
            border-top: 1px solid rgba(197, 255, 60, 0.1);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand .footer-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.5rem;
            letter-spacing: 0.12em;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.75;
            max-width: 300px;
        }

        .footer-col h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 16px;
            color: #fff;
            letter-spacing: 0.06em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            transition: all var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--acid);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom a:hover {
            color: var(--acid);
        }

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* 动画 */
        .reveal {
            opacity: 0;
            transform: translateY(32px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category2 */
:root {
            --carbon: #0A0D0C;
            --acid: #C5FF3C;
            --acid-alt: #AEEA00;
            --cloud: #F4F6F4;
            --coldgray: #B8C2BD;
            --borderc: #202826;
            --graytext: #8A9690;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px rgba(10, 13, 12, 0.08);
            --shadow-hover: 0 8px 32px rgba(10, 13, 12, 0.16);
            --transition: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'sans-serif';
            --font-condensed: 'Roboto Condensed', 'DIN Condensed', 'Noto Sans SC', 'sans-serif';
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-weight: 400;
            line-height: 1.75;
            color: var(--carbon);
            background-color: var(--cloud);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--acid);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container-main {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--carbon);
            border-bottom: 1px solid rgba(197, 255, 60, 0.12);
            transition: background-color var(--transition);
        }

        .site-header.scrolled {
            background-color: rgba(10, 13, 12, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.6rem;
            letter-spacing: 0.14em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo .logo-mark {
            display: inline-block;
            width: 14px;
            height: 14px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            margin-right: 4px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 500;
            color: #d8e0da;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: #fff;
            background-color: rgba(197, 255, 60, 0.08);
            border-color: rgba(197, 255, 60, 0.4);
        }

        .nav-links a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        .nav-cta {
            margin-left: 8px;
            padding: 10px 24px;
            background-color: var(--acid);
            color: var(--carbon) !important;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.92rem;
            transition: all var(--transition);
        }

        .nav-cta:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 16px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon) !important;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(197, 255, 60, 0.25);
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: rgba(197, 255, 60, 0.6);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 420px;
            height: 100vh;
            background-color: var(--carbon);
            z-index: 200;
            padding: 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            border-left: 1px solid rgba(197, 255, 60, 0.15);
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .mobile-drawer .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-drawer nav a {
            display: block;
            padding: 14px 16px;
            margin-bottom: 6px;
            border-radius: 8px;
            color: #d8e0da;
            font-size: 1rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all var(--transition);
        }

        .mobile-drawer nav a:hover,
        .mobile-drawer nav a.active {
            background-color: rgba(197, 255, 60, 0.08);
            border-color: rgba(197, 255, 60, 0.4);
            color: #fff;
        }

        .mobile-drawer nav a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-drawer {
                display: block;
            }
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--graytext);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--graytext);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--acid);
        }

        .breadcrumb .sep {
            color: var(--coldgray);
        }

        .breadcrumb .current {
            color: var(--carbon);
            font-weight: 600;
        }

        /* 分类 Hero */
        .category-hero {
            position: relative;
            background-image: linear-gradient(135deg, rgba(10,13,12,0.92), rgba(10,13,12,0.72)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0 72px;
            color: #fff;
            border-bottom: 1px solid rgba(197,255,60,0.2);
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 30% 20%, rgba(197,255,60,0.08), transparent 50%);
            pointer-events: none;
        }

        .category-hero .container-main {
            position: relative;
            z-index: 1;
        }

        .category-hero h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            font-weight: 900;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
            max-width: 800px;
        }

        .category-hero h1 span {
            color: var(--acid);
        }

        .category-hero .hero-desc {
            font-size: 1.15rem;
            line-height: 1.8;
            color: #d8e0da;
            max-width: 720px;
            margin-bottom: 28px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .stat-value {
            font-family: var(--font-condensed);
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--acid);
            line-height: 1;
        }

        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: var(--coldgray);
            letter-spacing: 0.04em;
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 56px 0 48px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
            }
        }

        /* 筛选工具条 */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            overflow-x: auto;
            padding: 16px 0;
            scrollbar-width: thin;
            scrollbar-color: var(--acid) transparent;
        }

        .filter-bar::-webkit-scrollbar {
            height: 4px;
        }

        .filter-bar::-webkit-scrollbar-thumb {
            background-color: var(--acid);
            border-radius: 4px;
        }

        .filter-pill {
            flex-shrink: 0;
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            background-color: #fff;
            border: 1px solid #e5e9e5;
            color: var(--carbon);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-pill:hover {
            border-color: var(--acid);
            background-color: #f9ffee;
        }

        .filter-pill.active {
            background-color: var(--acid);
            border-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        /* 列表卡片图文穿插 */
        .list-section {
            padding: 64px 0;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--carbon);
            letter-spacing: -0.01em;
        }

        .section-head p {
            color: var(--graytext);
            font-size: 1rem;
            max-width: 640px;
            margin-top: 8px;
        }

        .list-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .post-card {
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid #e9eee9;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .post-card:hover {
            transform: translateY(-4px);
            border-color: var(--acid);
            box-shadow: var(--shadow-hover);
        }

        .post-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: #eef1ee;
        }

        .post-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .post-card:hover .card-img img {
            transform: scale(1.05);
        }

        .post-card .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .post-card .card-tag {
            display: inline-block;
            align-self: flex-start;
            padding: 4px 12px;
            background-color: #f4f6f4;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #52605a;
            margin-bottom: 12px;
        }

        .post-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--carbon);
        }

        .post-card p {
            color: #5c6a63;
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .post-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--graytext);
            font-size: 0.85rem;
            border-top: 1px solid #edf0ed;
            padding-top: 14px;
        }

        .post-card .card-link {
            color: var(--carbon);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition);
        }

        .post-card .card-link:hover {
            color: var(--acid-alt);
        }

        .post-card.reverse {
            display: flex;
            flex-direction: column;
        }

        @media (max-width: 768px) {
            .list-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section-head h2 {
                font-size: 1.6rem;
            }
        }

        /* 卖点非对称 */
        .sell-section {
            background-color: var(--carbon);
            color: #fff;
            padding: 80px 0;
        }

        .sell-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 1fr;
            gap: 20px;
        }

        .sell-card {
            background: #111614;
            border: 1px solid #222a26;
            border-radius: var(--radius-md);
            padding: 32px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .sell-card:hover {
            border-color: var(--acid);
            background: #161d19;
        }

        .sell-card .sell-num {
            font-family: var(--font-condensed);
            font-size: 3rem;
            font-weight: 900;
            color: var(--acid);
            line-height: 1;
            margin-bottom: 16px;
        }

        .sell-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }

        .sell-card p {
            color: #b8c2bd;
            font-size: 0.95rem;
            line-height: 1.75;
        }

        .sell-card.featured {
            grid-column: span 1;
            background: linear-gradient(160deg, #1b241e, #0f1411);
            border-color: rgba(197,255,60,0.3);
        }

        @media (max-width: 900px) {
            .sell-grid {
                grid-template-columns: 1fr 1fr;
            }
            .sell-card.featured {
                grid-column: span 2;
            }
        }

        @media (max-width: 640px) {
            .sell-grid {
                grid-template-columns: 1fr;
            }
            .sell-card.featured {
                grid-column: span 1;
            }
            .sell-section {
                padding: 56px 0;
            }
        }

        /* 流程 */
        .process-section {
            padding: 80px 0;
            background: #fff;
        }

        .process-steps {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 40px;
        }

        .process-step {
            flex: 1 1 180px;
            min-width: 160px;
            background: var(--cloud);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid #e5e9e5;
            transition: all var(--transition);
        }

        .process-step:hover {
            border-color: var(--acid);
            background: #f9ffee;
            transform: translateY(-4px);
        }

        .process-step .step-index {
            font-family: var(--font-condensed);
            font-size: 2rem;
            font-weight: 900;
            color: var(--acid-alt);
            margin-bottom: 10px;
        }

        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--graytext);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-section {
            padding: 80px 0;
            background: var(--cloud);
        }

        .faq-item {
            background: #fff;
            border: 1px solid #e5e9e5;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--acid);
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--carbon);
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: #f9ffee;
        }

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--cloud);
            color: var(--carbon);
            font-size: 1.2rem;
            transition: transform var(--transition);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--acid);
            color: #0A0D0C;
        }

        .faq-answer {
            max-height: 0;
            padding: 0 24px;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: #52605a;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 240px;
            padding: 0 24px 20px;
        }

        /* CTA */
        .cta-section {
            padding: 80px 0;
            background: var(--carbon);
            color: #fff;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }

        .cta-left {
            flex: 1 1 400px;
        }

        .cta-left h2 {
            font-size: 2.2rem;
            font-weight: 900;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-left h2 span {
            color: var(--acid);
        }

        .cta-left p {
            color: #b8c2bd;
            font-size: 1.05rem;
            max-width: 520px;
        }

        .cta-form {
            flex: 1 1 340px;
            background: #111614;
            border: 1px solid #222a26;
            border-radius: var(--radius-md);
            padding: 32px;
        }

        .cta-form h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .form-control {
            flex: 1 1 45%;
            min-width: 120px;
            padding: 12px 16px;
            background: #0f1411;
            border: 1px solid #2a332d;
            border-radius: var(--radius-sm);
            color: #fff;
            transition: border-color var(--transition);
        }

        .form-control::placeholder {
            color: #6d7a72;
        }

        .form-control:focus {
            border-color: var(--acid);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 16px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            background: transparent;
            border: 1px solid rgba(197,255,60,0.5);
            color: var(--acid);
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            background: rgba(197,255,60,0.08);
            border-color: var(--acid);
        }

        @media (max-width: 768px) {
            .cta-inner {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-left h2 {
                font-size: 1.8rem;
            }
            .cta-form {
                padding: 24px;
            }
        }

        /* 页脚 */
        .site-footer {
            background: #060807;
            color: #b8c2bd;
            padding: 64px 0 32px;
            border-top: 1px solid #1a211d;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid #1a211d;
        }

        .footer-brand .footer-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.5rem;
            color: #fff;
            letter-spacing: 0.1em;
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 16px;
        }

        .footer-logo .logo-mark {
            width: 12px;
            height: 12px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #8a9690;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul a {
            color: #8a9690;
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--acid);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            font-size: 0.85rem;
            color: #6d7a72;
        }

        .footer-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: #8a9690;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--acid);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 560px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* 通用动画 */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .fade-in-up {
            animation: fadeInUp 0.6s ease both;
        }

        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }

/* roulang page: category1 */
:root {
            --carbon: #0A0D0C;
            --acid: #C5FF3C;
            --acid-alt: #AEEA00;
            --cloud: #F4F6F4;
            --coldgray: #B8C2BD;
            --borderc: #202826;
            --graytext: #8A9690;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px rgba(10, 13, 12, 0.08);
            --shadow-hover: 0 8px 32px rgba(10, 13, 12, 0.16);
            --transition: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'sans-serif';
            --font-condensed: 'Roboto Condensed', 'DIN Condensed', 'Noto Sans SC', 'sans-serif';
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-weight: 400;
            line-height: 1.75;
            color: var(--carbon);
            background-color: var(--cloud);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--acid);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container-main {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--carbon);
            border-bottom: 1px solid rgba(197, 255, 60, 0.12);
            transition: background-color var(--transition);
        }

        .site-header.scrolled {
            background-color: rgba(10, 13, 12, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.6rem;
            letter-spacing: 0.14em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo .logo-mark {
            display: inline-block;
            width: 14px;
            height: 14px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            margin-right: 4px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 500;
            color: #d8e0da;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: #fff;
            background-color: rgba(197, 255, 60, 0.08);
            border-color: rgba(197, 255, 60, 0.4);
        }

        .nav-links a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        .nav-cta {
            margin-left: 8px;
            padding: 10px 24px;
            background-color: var(--acid);
            color: var(--carbon) !important;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.92rem;
            transition: all var(--transition);
        }

        .nav-cta:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 16px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon) !important;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(197, 255, 60, 0.25);
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: rgba(197, 255, 60, 0.6);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 420px;
            height: 100vh;
            background-color: var(--carbon);
            z-index: 200;
            padding: 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            border-left: 1px solid rgba(197, 255, 60, 0.15);
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .mobile-drawer .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-drawer nav a {
            display: block;
            padding: 14px 16px;
            margin-bottom: 6px;
            border-radius: 8px;
            color: #d8e0da;
            font-size: 1rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all var(--transition);
        }

        .mobile-drawer nav a:hover {
            background-color: rgba(197, 255, 60, 0.08);
            color: #fff;
        }

        .mobile-drawer nav a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-drawer {
                display: block;
            }
        }

        /* Hero 优惠券墙 */
        .coupon-hero {
            background-color: var(--carbon);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 72px 0 96px;
            overflow: hidden;
        }

        .coupon-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 13, 12, 0.92) 0%, rgba(10, 13, 12, 0.72) 45%, rgba(10, 13, 12, 0.88) 100%);
            z-index: 1;
        }

        .coupon-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(197, 255, 60, 0.05) 40px);
            z-index: 1;
            pointer-events: none;
        }

        .coupon-hero .container-main {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--coldgray);
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: #d8e0da;
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--acid);
        }

        .breadcrumb .sep {
            color: rgba(197, 255, 60, 0.4);
        }

        .breadcrumb .current {
            color: var(--acid);
            font-weight: 500;
        }

        .coupon-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .coupon-hero-left h1 {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.8rem;
            line-height: 1.2;
            color: #ffffff;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
        }

        .coupon-hero-left h1 .highlight {
            color: var(--acid);
        }

        .coupon-hero-left .hero-desc {
            font-size: 1.05rem;
            color: #d8e0da;
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 32px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.04em;
            transition: all var(--transition);
            border: 1px solid var(--acid);
        }

        .btn-primary:hover {
            background-color: #d4ff5e;
            box-shadow: 0 6px 24px rgba(197, 255, 60, 0.4);
            transform: translateY(-2px);
            color: var(--carbon);
        }

        .btn-secondary {
            display: inline-block;
            padding: 13px 28px;
            background-color: transparent;
            color: #ffffff;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid rgba(197, 255, 60, 0.4);
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: var(--acid);
            color: var(--acid);
        }

        .coupon-wall {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .coupon-main-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(197, 255, 60, 0.4);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            backdrop-filter: blur(8px);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .coupon-main-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 20%, rgba(197, 255, 60, 0.06) 0%, transparent 60%);
            pointer-events: none;
        }

        .coupon-main-card:hover {
            border-color: var(--acid);
            box-shadow: 0 8px 32px rgba(197, 255, 60, 0.2);
            transform: translateY(-3px);
        }

        .coupon-main-card .coupon-label {
            flex: 1;
            min-width: 200px;
        }

        .coupon-main-card .coupon-label .tag {
            display: inline-block;
            padding: 4px 14px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            margin-bottom: 12px;
        }

        .coupon-main-card .coupon-label h3 {
            font-family: var(--font-condensed);
            font-weight: 700;
            font-size: 1.3rem;
            color: #ffffff;
            margin-bottom: 6px;
        }

        .coupon-main-card .coupon-label p {
            font-size: 0.88rem;
            color: var(--coldgray);
            line-height: 1.6;
        }

        .coupon-main-card .coupon-btn {
            flex-shrink: 0;
        }

        .coupon-btn {
            display: inline-block;
            padding: 12px 26px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.88rem;
            letter-spacing: 0.05em;
            transition: all var(--transition);
            border: 1px solid var(--acid);
            white-space: nowrap;
        }

        .coupon-btn:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 16px rgba(197, 255, 60, 0.4);
            color: var(--carbon);
            transform: translateY(-2px);
        }

        .coupon-sub-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
        }

        .coupon-sub-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: left;
            transition: all var(--transition);
            cursor: default;
        }

        .coupon-sub-card:hover {
            border-color: rgba(197, 255, 60, 0.5);
            background: rgba(197, 255, 60, 0.05);
            transform: translateY(-2px);
        }

        .coupon-sub-card .sub-title {
            font-weight: 600;
            font-size: 0.88rem;
            color: #ffffff;
            margin-bottom: 4px;
        }

        .coupon-sub-card .sub-desc {
            font-size: 0.78rem;
            color: var(--coldgray);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .coupon-sub-card .sub-link {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--acid);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }

        .coupon-sub-card .sub-link:hover {
            color: #d4ff5e;
        }

        @media (max-width: 1024px) {
            .coupon-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .coupon-hero-left h1 {
                font-size: 2.2rem;
            }
            .coupon-hero {
                min-height: auto;
                padding: 56px 0 72px;
            }
        }

        @media (max-width: 640px) {
            .coupon-hero-left h1 {
                font-size: 1.7rem;
            }
            .coupon-sub-grid {
                grid-template-columns: 1fr;
            }
            .coupon-main-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .coupon-btn {
                width: 100%;
                text-align: center;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                text-align: center;
            }
        }

        /* 通用板块 */
        .section {
            padding: 96px 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
        }

        .section-dark {
            background-color: var(--carbon);
            color: #ffffff;
        }

        .section-light {
            background-color: var(--cloud);
        }

        .section-white {
            background-color: #ffffff;
        }

        .section-label {
            display: inline-block;
            padding: 4px 16px;
            background-color: rgba(197, 255, 60, 0.12);
            color: var(--acid);
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            margin-bottom: 16px;
        }

        .section-dark .section-label {
            background-color: rgba(197, 255, 60, 0.1);
            color: var(--acid);
        }

        .section-title {
            font-family: var(--font-condensed);
            font-weight: 800;
            font-size: 2rem;
            line-height: 1.3;
            color: var(--carbon);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .section-dark .section-title {
            color: #ffffff;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--graytext);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 40px;
        }

        .section-dark .section-desc {
            color: var(--coldgray);
        }

        /* 功能卖点 */
        .feature-grid-asym {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .feature-card {
            border-radius: var(--radius-md);
            border: 1px solid #e8ece8;
            background: #ffffff;
            padding: 28px;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .feature-card:hover {
            border-color: var(--acid);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .feature-card .feat-num {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.8rem;
            color: rgba(197, 255, 60, 0.4);
            line-height: 1;
        }

        .feature-card .feat-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--carbon);
        }

        .feature-card .feat-desc {
            font-size: 0.9rem;
            color: var(--graytext);
            line-height: 1.7;
        }

        .feature-card .feat-img {
            border-radius: var(--radius-sm);
            overflow: hidden;
            height: 140px;
            background-size: cover;
            background-position: center;
            margin-top: 4px;
        }

        .feature-card.col-span-5 {
            grid-column: span 5;
        }

        .feature-card.col-span-7 {
            grid-column: span 7;
        }

        .feature-card.col-span-4 {
            grid-column: span 4;
        }

        .feature-card.col-span-8 {
            grid-column: span 8;
        }

        @media (max-width: 768px) {
            .feature-card.col-span-5,
            .feature-card.col-span-7,
            .feature-card.col-span-4,
            .feature-card.col-span-8 {
                grid-column: span 12;
            }
        }

        /* 场景 */
        .scenario-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid #e8ece8;
            background: #ffffff;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }

        .scenario-card:hover {
            border-color: var(--acid);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .scenario-card .scenario-img {
            height: 200px;
            background-size: cover;
            background-position: center;
        }

        .scenario-card .scenario-body {
            padding: 24px;
        }

        .scenario-card .scenario-body h3 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--carbon);
            margin-bottom: 8px;
        }

        .scenario-card .scenario-body p {
            font-size: 0.88rem;
            color: var(--graytext);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .scenario-cards {
                grid-template-columns: 1fr;
            }
        }

        /* 流程 */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-item {
            text-align: left;
            padding: 24px;
            border-radius: var(--radius-md);
            background: #ffffff;
            border: 1px solid #e8ece8;
            transition: all var(--transition);
        }

        .step-item:hover {
            border-color: var(--acid);
            transform: translateY(-3px);
        }

        .step-item .step-num {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.4rem;
            color: var(--acid);
            line-height: 1;
            margin-bottom: 12px;
        }

        .step-item h4 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--carbon);
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--graytext);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .steps-row {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .steps-row {
                grid-template-columns: 1fr;
            }
        }

        /* 列表卡片（图文穿插） */
        .list-interleave {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .list-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            border-radius: var(--radius-md);
            background: #ffffff;
            border: 1px solid #e8ece8;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }

        .list-item:hover {
            border-color: var(--acid);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .list-item.reverse {
            direction: rtl;
        }

        .list-item.reverse > * {
            direction: ltr;
        }

        .list-item .list-img {
            height: 260px;
            background-size: cover;
            background-position: center;
        }

        .list-item .list-body {
            padding: 28px;
        }

        .list-item .list-body .list-tag {
            display: inline-block;
            padding: 3px 12px;
            background-color: rgba(197, 255, 60, 0.15);
            color: #5a7a00;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .list-item .list-body h3 {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--carbon);
            margin-bottom: 8px;
        }

        .list-item .list-body p {
            font-size: 0.9rem;
            color: var(--graytext);
            line-height: 1.75;
            margin-bottom: 14px;
        }

        .list-item .list-body .list-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--carbon);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
        }

        .list-item .list-body .list-link:hover {
            color: var(--acid);
        }

        @media (max-width: 768px) {
            .list-item,
            .list-item.reverse {
                grid-template-columns: 1fr;
                direction: ltr;
            }
            .list-item .list-img {
                height: 200px;
            }
            .list-item .list-body {
                padding: 20px;
            }
        }

        /* 分页 */
        .pagination-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 12px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--carbon);
            border: 1px solid #d8e0da;
            transition: all var(--transition);
            background: #ffffff;
        }

        .page-btn:hover {
            border-color: var(--acid);
            color: var(--carbon);
            background: rgba(197, 255, 60, 0.1);
        }

        .page-btn.active {
            background-color: var(--acid);
            color: var(--carbon);
            border-color: var(--acid);
            font-weight: 700;
        }

        .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            border: 1px solid #e8ece8;
            border-radius: var(--radius-md);
            background: #ffffff;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(197, 255, 60, 0.5);
        }

        .faq-item.active {
            border-color: var(--acid);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--carbon);
            text-align: left;
            gap: 16px;
            transition: all var(--transition);
        }

        .faq-question:hover {
            color: var(--carbon);
            background: rgba(197, 255, 60, 0.05);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid #d8e0da;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--graytext);
            transition: all var(--transition);
        }

        .faq-item.active .faq-icon {
            color: var(--acid);
            border-color: var(--acid);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.9rem;
            color: var(--graytext);
            line-height: 1.8;
        }

        /* CTA 表单 */
        .cta-section {
            background-color: var(--carbon);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 13, 12, 0.88);
            z-index: 1;
        }

        .cta-section .container-main {
            position: relative;
            z-index: 2;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-info h2 {
            font-family: var(--font-condensed);
            font-weight: 800;
            font-size: 2rem;
            color: #ffffff;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-info p {
            font-size: 1rem;
            color: var(--coldgray);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .cta-form {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(197, 255, 60, 0.25);
            border-radius: var(--radius-lg);
            padding: 32px;
        }

        .cta-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }

        .cta-form .form-field input,
        .cta-form .form-field select,
        .cta-form .form-field textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.05);
            color: #ffffff;
            font-size: 0.9rem;
            transition: all var(--transition);
        }

        .cta-form .form-field input::placeholder,
        .cta-form .form-field textarea::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .cta-form .form-field input:focus,
        .cta-form .form-field select:focus,
        .cta-form .form-field textarea:focus {
            border-color: var(--acid);
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-form .form-field label {
            display: block;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--coldgray);
            margin-bottom: 6px;
        }

        .cta-form .btn-submit {
            width: 100%;
            padding: 14px 28px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.04em;
            border: 1px solid var(--acid);
            transition: all var(--transition);
            cursor: pointer;
        }

        .cta-form .btn-submit:hover {
            background-color: #d4ff5e;
            box-shadow: 0 6px 24px rgba(197, 255, 60, 0.4);
            transform: translateY(-2px);
            color: var(--carbon);
        }

        @media (max-width: 768px) {
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-form .form-row {
                grid-template-columns: 1fr;
            }
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--carbon);
            color: #d8e0da;
            padding: 64px 0 32px;
            border-top: 1px solid rgba(197, 255, 60, 0.12);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.5rem;
            letter-spacing: 0.1em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .footer-brand .footer-logo .logo-mark {
            display: inline-block;
            width: 12px;
            height: 12px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--graytext);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 0.88rem;
            color: var(--graytext);
            transition: all var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--acid);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: var(--graytext);
        }

        .footer-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: var(--coldgray);
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--acid);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 动画 */
        .fade-up {
            animation: fadeUp 0.7s ease forwards;
            opacity: 0;
        }

        .fade-up:nth-child(1) {
            animation-delay: 0.1s;
        }
        .fade-up:nth-child(2) {
            animation-delay: 0.2s;
        }
        .fade-up:nth-child(3) {
            animation-delay: 0.3s;
        }
        .fade-up:nth-child(4) {
            animation-delay: 0.4s;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 工具类补充 */
        .text-acid {
            color: var(--acid);
        }
        .bg-carbon {
            background-color: var(--carbon);
        }
        .border-acid {
            border-color: var(--acid);
        }

/* roulang page: category3 */
:root {
            --carbon: #0A0D0C;
            --acid: #C5FF3C;
            --acid-alt: #AEEA00;
            --cloud: #F4F6F4;
            --coldgray: #B8C2BD;
            --borderc: #202826;
            --graytext: #8A9690;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px rgba(10, 13, 12, 0.08);
            --shadow-hover: 0 8px 32px rgba(10, 13, 12, 0.16);
            --transition: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'sans-serif';
            --font-condensed: 'Roboto Condensed', 'DIN Condensed', 'Noto Sans SC', 'sans-serif';
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-weight: 400;
            line-height: 1.75;
            color: var(--carbon);
            background-color: var(--cloud);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--acid);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container-main {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--carbon);
            border-bottom: 1px solid rgba(197, 255, 60, 0.12);
            transition: background-color var(--transition);
        }
        .site-header.scrolled {
            background-color: rgba(10, 13, 12, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .nav-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.6rem;
            letter-spacing: 0.14em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-logo .logo-mark {
            display: inline-block;
            width: 14px;
            height: 14px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            margin-right: 4px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            flex-wrap: wrap;
            justify-content: flex-end;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 500;
            color: #d8e0da;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: #fff;
            background-color: rgba(197, 255, 60, 0.08);
            border-color: rgba(197, 255, 60, 0.4);
        }
        .nav-links a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }
        .nav-cta {
            margin-left: 6px;
            padding: 10px 22px;
            background-color: var(--acid);
            color: var(--carbon) !important;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.88rem;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 16px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon) !important;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(197, 255, 60, 0.25);
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: rgba(197, 255, 60, 0.6);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 420px;
            height: 100vh;
            background-color: var(--carbon);
            z-index: 200;
            padding: 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            border-left: 1px solid rgba(197, 255, 60, 0.15);
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }
        .mobile-drawer .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mobile-drawer nav a {
            display: block;
            padding: 14px 16px;
            margin-bottom: 6px;
            border-radius: 8px;
            color: #d8e0da;
            font-size: 1rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all var(--transition);
        }
        .mobile-drawer nav a:hover {
            background-color: rgba(197, 255, 60, 0.08);
            color: #fff;
        }
        .mobile-drawer nav a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-drawer {
                display: block;
            }
            .nav-inner {
                height: 64px;
            }
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--graytext);
            margin-bottom: 16px;
            position: relative;
            z-index: 10;
        }
        .breadcrumb a {
            color: var(--coldgray);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--acid);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.35);
        }
        .breadcrumb .current {
            color: #ffffff;
            font-weight: 600;
        }

        /* 分类页 Hero */
        .category-hero {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: flex-end;
            overflow: hidden;
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid rgba(197, 255, 60, 0.15);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 13, 12, 0.75) 0%, rgba(10, 13, 12, 0.55) 50%, rgba(10, 13, 12, 0.9) 100%);
            z-index: 1;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(197, 255, 60, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(197, 255, 60, 0.04) 1px, transparent 1px);
            background-size: 48px 48px;
            z-index: 2;
            pointer-events: none;
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 5;
            padding: 56px 0 48px;
            width: 100%;
        }
        .category-hero h1 {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.9rem;
            line-height: 1.15;
            letter-spacing: 0.04em;
            color: #fff;
            margin-bottom: 16px;
            max-width: 760px;
        }
        .category-hero h1 .accent {
            color: var(--acid);
        }
        .category-hero .hero-desc {
            font-size: 1.05rem;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.82);
            max-width: 660px;
            margin-bottom: 24px;
        }
        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .btn-primary:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 20px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background-color: transparent;
            color: #fff;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition);
        }
        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: rgba(197, 255, 60, 0.6);
            color: var(--acid);
        }
        @media (max-width: 768px) {
            .category-hero {
                min-height: 300px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero .hero-content {
                padding: 40px 0 32px;
            }
        }

        /* 标签胶囊 */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 500;
            border: 1px solid rgba(10, 13, 12, 0.15);
            color: var(--graytext);
            transition: all var(--transition);
            background-color: transparent;
            white-space: nowrap;
        }
        .tag-pill:hover {
            border-color: var(--acid);
            color: var(--carbon);
            background-color: rgba(197, 255, 60, 0.15);
        }
        .tag-pill.active {
            background-color: var(--acid);
            border-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }
        .tag-pill.dark {
            border-color: rgba(255, 255, 255, 0.25);
            color: var(--coldgray);
        }
        .tag-pill.dark:hover {
            border-color: var(--acid);
            color: #fff;
        }
        .tag-pill.dark.active {
            background-color: var(--acid);
            border-color: var(--acid);
            color: var(--carbon);
        }

        /* 列表卡片 */
        .list-card {
            display: flex;
            flex-direction: column;
            background-color: #fff;
            border: 1px solid rgba(10, 13, 12, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }
        .list-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(197, 255, 60, 0.5);
        }
        .list-card .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            flex-shrink: 0;
        }
        .list-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .list-card:hover .card-image img {
            transform: scale(1.04);
        }
        .list-card .card-body {
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .list-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .list-card .card-title {
            font-family: var(--font-condensed);
            font-weight: 800;
            font-size: 1.35rem;
            line-height: 1.35;
            letter-spacing: 0.02em;
            color: var(--carbon);
        }
        .list-card .card-desc {
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--graytext);
        }
        .list-card .card-link {
            font-weight: 700;
            font-size: 0.88rem;
            color: var(--carbon);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
            margin-top: auto;
        }
        .list-card .card-link:hover {
            color: var(--acid);
        }
        .list-card .card-link .arrow {
            transition: transform var(--transition);
        }
        .list-card:hover .card-link .arrow {
            transform: translateX(4px);
        }
        @media (min-width: 768px) {
            .list-card.horizontal {
                flex-direction: row;
                align-items: stretch;
            }
            .list-card.horizontal .card-image {
                aspect-ratio: auto;
                width: 38%;
                min-height: 240px;
            }
            .list-card.horizontal .card-body {
                flex: 1;
            }
            .list-card.horizontal.reverse {
                flex-direction: row-reverse;
            }
        }

        /* 指标带 */
        .metric-strip {
            background-color: var(--carbon);
            border-bottom: 1px solid rgba(197, 255, 60, 0.12);
            padding: 32px 0;
        }
        .metric-strip .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .metric-strip .metric-item {
            text-align: center;
            padding: 16px 12px;
            border-right: 1px solid rgba(197, 255, 60, 0.1);
        }
        .metric-strip .metric-item:last-child {
            border-right: none;
        }
        .metric-strip .metric-number {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.2rem;
            letter-spacing: 0.04em;
            color: var(--acid);
        }
        .metric-strip .metric-label {
            font-size: 0.85rem;
            color: var(--coldgray);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .metric-strip .metric-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-strip .metric-item {
                border-right: none;
                border-bottom: 1px solid rgba(197, 255, 60, 0.08);
                padding: 12px 8px;
            }
            .metric-strip .metric-number {
                font-size: 1.8rem;
            }
        }

        /* 板块标题 */
        .section-title {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.1rem;
            line-height: 1.2;
            letter-spacing: 0.03em;
            color: var(--carbon);
            margin-bottom: 12px;
        }
        .section-sub {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--graytext);
            max-width: 620px;
            margin-bottom: 32px;
        }
        .section-lead {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            justify-content: center;
            padding: 24px 0 8px;
        }
        .pagination .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 14px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            border: 1px solid rgba(10, 13, 12, 0.15);
            color: var(--carbon);
            transition: all var(--transition);
        }
        .pagination .page-btn:hover {
            border-color: var(--acid);
            color: var(--carbon);
            background-color: rgba(197, 255, 60, 0.12);
        }
        .pagination .page-btn.active {
            background-color: var(--acid);
            border-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }
        .pagination .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid rgba(10, 13, 12, 0.1);
            border-radius: var(--radius-md);
            background-color: #fff;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(197, 255, 60, 0.4);
        }
        .faq-item.open {
            border-color: rgba(197, 255, 60, 0.6);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--carbon);
            cursor: pointer;
            transition: all var(--transition);
            width: 100%;
            text-align: left;
            background: none;
        }
        .faq-question:hover {
            background-color: rgba(197, 255, 60, 0.06);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid rgba(10, 13, 12, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: all var(--transition);
            color: var(--carbon);
            line-height: 1;
        }
        .faq-item.open .faq-icon {
            background-color: var(--acid);
            border-color: var(--acid);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--graytext);
            font-size: 0.95rem;
            line-height: 1.85;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* CTA 区块 */
        .cta-section {
            background-color: var(--carbon);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(197, 255, 60, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(197, 255, 60, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }
        .cta-section .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-section h2 {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.2rem;
            letter-spacing: 0.03em;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            line-height: 1.85;
            margin-bottom: 28px;
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--carbon);
            border-top: 1px solid rgba(197, 255, 60, 0.1);
            padding: 56px 0 24px;
            color: var(--coldgray);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .footer-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.5rem;
            letter-spacing: 0.12em;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo .logo-mark {
            display: inline-block;
            width: 12px;
            height: 12px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.85;
            color: var(--graytext);
            max-width: 340px;
        }
        .footer-col h4 {
            font-family: var(--font-condensed);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.06em;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            font-size: 0.9rem;
            color: var(--graytext);
            transition: all var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--acid);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: var(--graytext);
        }
        .footer-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom a {
            color: var(--coldgray);
            transition: all var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--acid);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* 场景卡片 */
        .scene-card {
            background-color: #fff;
            border: 1px solid rgba(10, 13, 12, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(197, 255, 60, 0.4);
        }
        .scene-card .scene-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .scene-card .scene-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .scene-card:hover .scene-image img {
            transform: scale(1.04);
        }
        .scene-card .scene-body {
            padding: 20px 24px;
        }
        .scene-card .scene-title {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--carbon);
            margin-bottom: 8px;
        }
        .scene-card .scene-desc {
            font-size: 0.9rem;
            color: var(--graytext);
            line-height: 1.75;
        }

        /* 安全区块 */
        .security-section {
            background-color: var(--carbon);
            padding: 64px 0;
            position: relative;
        }
        .security-section .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .security-section .security-item {
            background-color: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(197, 255, 60, 0.12);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition);
        }
        .security-section .security-item:hover {
            border-color: rgba(197, 255, 60, 0.4);
            background-color: rgba(255, 255, 255, 0.06);
        }
        .security-section .security-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background-color: rgba(197, 255, 60, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--acid);
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        .security-section .security-title {
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 8px;
        }
        .security-section .security-desc {
            font-size: 0.88rem;
            color: var(--coldgray);
            line-height: 1.75;
        }
        @media (max-width: 768px) {
            .security-section .security-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 动画 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }
        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category4 */
:root {
            --carbon: #0A0D0C;
            --acid: #C5FF3C;
            --acid-alt: #AEEA00;
            --cloud: #F4F6F4;
            --coldgray: #B8C2BD;
            --borderc: #202826;
            --graytext: #8A9690;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px rgba(10, 13, 12, 0.08);
            --shadow-hover: 0 8px 32px rgba(10, 13, 12, 0.16);
            --transition: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-condensed: 'Roboto Condensed', 'DIN Condensed', 'Noto Sans SC', sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-weight: 400;
            line-height: 1.75;
            color: var(--carbon);
            background-color: var(--cloud);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--acid);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container-main {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--carbon);
            border-bottom: 1px solid rgba(197, 255, 60, 0.12);
            transition: background-color var(--transition);
        }

        .site-header.scrolled {
            background-color: rgba(10, 13, 12, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.6rem;
            letter-spacing: 0.14em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            white-space: nowrap;
        }

        .nav-logo .logo-mark {
            display: inline-block;
            width: 14px;
            height: 14px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            margin-right: 4px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #d8e0da;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: #fff;
            background-color: rgba(197, 255, 60, 0.08);
            border-color: rgba(197, 255, 60, 0.4);
        }

        .nav-links a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        .nav-cta {
            margin-left: 8px;
            padding: 10px 22px;
            background-color: var(--acid);
            color: var(--carbon) !important;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition);
        }

        .nav-cta:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 16px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon) !important;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(197, 255, 60, 0.25);
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            transition: all var(--transition);
            background: transparent;
        }

        .nav-toggle:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: rgba(197, 255, 60, 0.6);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 420px;
            height: 100vh;
            background-color: var(--carbon);
            z-index: 200;
            padding: 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            border-left: 1px solid rgba(197, 255, 60, 0.15);
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .mobile-drawer .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background: transparent;
        }

        .mobile-drawer nav a {
            display: block;
            padding: 14px 16px;
            margin-bottom: 6px;
            border-radius: 8px;
            color: #d8e0da;
            font-size: 1rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all var(--transition);
        }

        .mobile-drawer nav a:hover {
            background-color: rgba(197, 255, 60, 0.08);
            border-color: rgba(197, 255, 60, 0.3);
            color: #fff;
        }

        .mobile-drawer nav a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: rgba(0, 0, 0, 0.55);
            z-index: 150;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.show {
            display: block;
            opacity: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--graytext);
            padding: 16px 0 0;
        }

        .breadcrumb a {
            color: var(--graytext);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--acid);
        }

        .breadcrumb .separator {
            color: var(--coldgray);
            font-size: 0.75rem;
        }

        .breadcrumb .current {
            color: var(--carbon);
            font-weight: 600;
        }

        .page-hero-sm {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            padding: 56px 0 48px;
            overflow: hidden;
        }

        .page-hero-sm::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(10, 13, 12, 0.72) 0%, rgba(10, 13, 12, 0.88) 100%);
            z-index: 1;
        }

        .page-hero-sm::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(197, 255, 60, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(197, 255, 60, 0.05) 1px, transparent 1px);
            background-size: 48px 48px;
            z-index: 1;
        }

        .page-hero-sm .container-main {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .page-hero-sm .hero-label {
            display: inline-block;
            padding: 6px 16px;
            border: 1px solid rgba(197, 255, 60, 0.4);
            border-radius: 999px;
            color: var(--acid);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            background-color: rgba(10, 13, 12, 0.5);
            margin-bottom: 16px;
        }

        .page-hero-sm h1 {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: clamp(2rem, 5vw, 3.4rem);
            color: #fff;
            letter-spacing: 0.04em;
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .page-hero-sm .hero-sub {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 720px;
            line-height: 1.8;
            font-weight: 400;
        }

        .section {
            padding: 72px 0;
        }

        @media (min-width: 1024px) {
            .section {
                padding: 96px 0;
            }
        }

        .section-dark {
            background-color: var(--carbon);
            color: #fff;
        }

        .section-cloud {
            background-color: var(--cloud);
        }

        .section-white {
            background-color: #ffffff;
        }

        .section-title {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            letter-spacing: 0.03em;
            color: var(--carbon);
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-lead {
            font-size: 1rem;
            color: var(--graytext);
            max-width: 680px;
            line-height: 1.8;
        }

        .section-dark .section-lead {
            color: rgba(255, 255, 255, 0.65);
        }

        .feature-grid-asym {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .feature-card {
            background-color: #fff;
            border: 1px solid rgba(10, 13, 12, 0.06);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            border-color: var(--acid);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .feature-card .feature-number {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.4rem;
            color: var(--coldgray);
            opacity: 0.5;
            line-height: 1;
            display: block;
            margin-bottom: 16px;
        }

        .feature-card:hover .feature-number {
            color: var(--acid-alt);
            opacity: 1;
        }

        .feature-card h3 {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--carbon);
            margin-bottom: 8px;
            font-family: var(--font-sans);
        }

        .feature-card p {
            font-size: 0.92rem;
            color: var(--graytext);
            line-height: 1.75;
        }

        .feature-card .feature-img {
            margin-top: 16px;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .feature-card .feature-img img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .feature-card:hover .feature-img img {
            transform: scale(1.05);
        }

        .col-span-5 {
            grid-column: span 5;
        }

        .col-span-7 {
            grid-column: span 7;
        }

        .col-span-4 {
            grid-column: span 4;
        }

        .col-span-3 {
            grid-column: span 3;
        }

        .col-span-6 {
            grid-column: span 6;
        }

        .col-span-12 {
            grid-column: span 12;
        }

        @media (max-width: 1024px) {
            .col-span-5,
            .col-span-7,
            .col-span-4,
            .col-span-3,
            .col-span-6 {
                grid-column: span 6;
            }
        }

        @media (max-width: 640px) {
            .col-span-5,
            .col-span-7,
            .col-span-4,
            .col-span-3,
            .col-span-6 {
                grid-column: span 12;
            }
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 2px solid var(--acid);
        }

        .btn-primary:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 24px rgba(197, 255, 60, 0.4);
            transform: translateY(-2px);
            color: var(--carbon);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            background-color: transparent;
            color: var(--carbon);
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 2px solid rgba(10, 13, 12, 0.2);
        }

        .btn-secondary:hover {
            border-color: var(--acid);
            background-color: rgba(197, 255, 60, 0.08);
            color: var(--carbon);
            transform: translateY(-2px);
        }

        .section-dark .btn-secondary {
            color: #fff;
            border-color: rgba(255, 255, 255, 0.3);
        }

        .section-dark .btn-secondary:hover {
            border-color: var(--acid);
            background-color: rgba(197, 255, 60, 0.1);
            color: #fff;
        }

        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            margin-top: 24px;
        }

        .filter-chip {
            padding: 8px 18px;
            border-radius: 999px;
            border: 1px solid rgba(10, 13, 12, 0.15);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--graytext);
            background-color: transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--acid);
            color: var(--carbon);
            background-color: rgba(197, 255, 60, 0.06);
        }

        .filter-chip.active {
            background-color: var(--acid);
            color: var(--carbon);
            border-color: var(--acid);
            font-weight: 700;
        }

        .filter-select {
            padding: 8px 16px;
            border-radius: 999px;
            border: 1px solid rgba(10, 13, 12, 0.15);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--carbon);
            background-color: #fff;
            cursor: pointer;
            transition: all var(--transition);
        }

        .filter-select:focus {
            border-color: var(--acid);
            box-shadow: 0 0 0 3px rgba(197, 255, 60, 0.2);
        }

        .track-card-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            margin-top: 32px;
        }

        .track-card {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 24px;
            background-color: #fff;
            border: 1px solid rgba(10, 13, 12, 0.06);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }

        .track-card:hover {
            border-color: var(--acid);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .track-card .card-img {
            height: 100%;
            min-height: 180px;
            overflow: hidden;
        }

        .track-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .track-card:hover .card-img img {
            transform: scale(1.04);
        }

        .track-card .card-body {
            padding: 20px 24px 20px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .track-card .card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            background-color: rgba(197, 255, 60, 0.15);
            color: #3a5a00;
            margin-bottom: 10px;
            width: fit-content;
        }

        .track-card h3 {
            font-weight: 700;
            font-size: 1.12rem;
            color: var(--carbon);
            margin-bottom: 6px;
        }

        .track-card .card-desc {
            font-size: 0.9rem;
            color: var(--graytext);
            line-height: 1.75;
        }

        .track-card .card-meta {
            display: flex;
            gap: 16px;
            margin-top: 12px;
            font-size: 0.78rem;
            color: var(--coldgray);
            flex-wrap: wrap;
        }

        .track-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        @media (max-width: 768px) {
            .track-card {
                grid-template-columns: 1fr;
                gap: 0;
            }

            .track-card .card-img {
                min-height: 160px;
                max-height: 200px;
            }

            .track-card .card-body {
                padding: 16px 20px 20px;
            }
        }

        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-top: 40px;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 14px;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--carbon);
            border: 1px solid rgba(10, 13, 12, 0.15);
            transition: all var(--transition);
        }

        .pagination a:hover {
            border-color: var(--acid);
            background-color: rgba(197, 255, 60, 0.08);
            color: var(--carbon);
        }

        .pagination .current {
            background-color: var(--acid);
            color: var(--carbon);
            border-color: var(--acid);
            font-weight: 700;
        }

        .timeline-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .timeline-step {
            background-color: #fff;
            border: 1px solid rgba(10, 13, 12, 0.08);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition);
            position: relative;
        }

        .timeline-step:hover {
            border-color: var(--acid);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .timeline-step .step-num {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.8rem;
            color: var(--acid-alt);
            opacity: 0.6;
            line-height: 1;
            display: block;
            margin-bottom: 12px;
        }

        .timeline-step h3 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--carbon);
            margin-bottom: 8px;
        }

        .timeline-step p {
            font-size: 0.88rem;
            color: var(--graytext);
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .timeline-flow {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .timeline-flow {
                grid-template-columns: 1fr;
            }
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            margin-top: 40px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background-color: #fff;
            border: 1px solid rgba(10, 13, 12, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--coldgray);
        }

        .faq-item.open {
            border-color: var(--acid);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--carbon);
            gap: 16px;
            transition: all var(--transition);
        }

        .faq-question:hover {
            background-color: rgba(197, 255, 60, 0.04);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background-color: rgba(10, 13, 12, 0.06);
            font-size: 1.2rem;
            transition: all var(--transition);
            color: var(--graytext);
        }

        .faq-item.open .faq-icon {
            background-color: var(--acid);
            color: var(--carbon);
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            font-size: 0.9rem;
            color: var(--graytext);
            line-height: 1.75;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }

        .cta-band {
            background-color: var(--carbon);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(197, 255, 60, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-band h2 {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.8rem;
            color: #fff;
            letter-spacing: 0.03em;
            line-height: 1.3;
            position: relative;
            z-index: 1;
        }

        .cta-band p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            max-width: 520px;
            position: relative;
            z-index: 1;
            margin-top: 8px;
        }

        .cta-band .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        @media (max-width: 768px) {
            .cta-band {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
            }

            .cta-band .cta-actions {
                justify-content: center;
            }
        }

        .site-footer {
            background-color: var(--carbon);
            color: #d8e0da;
            padding: 56px 0 24px;
            border-top: 1px solid rgba(197, 255, 60, 0.1);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            line-height: 1.75;
            margin-top: 12px;
            max-width: 360px;
        }

        .footer-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.4rem;
            letter-spacing: 0.1em;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-logo .logo-mark {
            display: inline-block;
            width: 12px;
            height: 12px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: all var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--acid);
            padding-left: 6px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--acid);
        }

        .footer-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .footer-badges {
                justify-content: center;
            }
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .mobile-drawer {
                display: block;
            }
        }

        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category5 */
:root {
            --carbon: #0A0D0C;
            --acid: #C5FF3C;
            --acid-alt: #AEEA00;
            --cloud: #F4F6F4;
            --coldgray: #B8C2BD;
            --borderc: #202826;
            --graytext: #8A9690;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px rgba(10, 13, 12, 0.08);
            --shadow-hover: 0 8px 32px rgba(10, 13, 12, 0.16);
            --transition: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'sans-serif';
            --font-condensed: 'Roboto Condensed', 'DIN Condensed', 'Noto Sans SC', 'sans-serif';
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-weight: 400;
            line-height: 1.75;
            color: var(--carbon);
            background-color: var(--cloud);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--acid-alt);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }

        .container-main {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--carbon);
            border-bottom: 1px solid rgba(197, 255, 60, 0.12);
            transition: background-color var(--transition);
        }
        .site-header.scrolled {
            background-color: rgba(10, 13, 12, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .nav-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.6rem;
            letter-spacing: 0.14em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-logo .logo-mark {
            display: inline-block;
            width: 14px;
            height: 14px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            margin-right: 4px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 500;
            color: #d8e0da;
            transition: all var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .nav-links a:hover {
            color: #fff;
            background-color: rgba(197, 255, 60, 0.08);
            border-color: rgba(197, 255, 60, 0.4);
        }
        .nav-links a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
            border-color: var(--acid);
        }
        .nav-cta {
            margin-left: 6px;
            padding: 10px 22px;
            background-color: var(--acid);
            color: var(--carbon) !important;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.88rem;
            transition: all var(--transition);
            border: 1px solid var(--acid) !important;
        }
        .nav-cta:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 16px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon) !important;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(197, 255, 60, 0.25);
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: rgba(197, 255, 60, 0.6);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 420px;
            height: 100vh;
            background-color: var(--carbon);
            z-index: 200;
            padding: 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            border-left: 1px solid rgba(197, 255, 60, 0.15);
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
        }
        .mobile-drawer .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .mobile-drawer .drawer-close:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: rgba(197, 255, 60, 0.6);
        }
        .mobile-drawer nav a {
            display: block;
            padding: 13px 16px;
            margin-bottom: 6px;
            border-radius: 8px;
            color: #d8e0da;
            font-size: 1rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all var(--transition);
        }
        .mobile-drawer nav a:hover {
            background-color: rgba(197, 255, 60, 0.08);
            border-color: rgba(197, 255, 60, 0.4);
            color: #fff;
        }
        .mobile-drawer nav a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
            border-color: var(--acid);
        }
        .mobile-drawer .drawer-cta {
            margin-top: 16px;
            padding: 14px 24px;
            background-color: var(--acid);
            color: var(--carbon) !important;
            border-radius: 8px;
            font-weight: 700;
            text-align: center;
            display: block;
            border-color: var(--acid) !important;
        }

        /* 窄 Hero */
        .category-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            padding: 64px 0 48px;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10,13,12,0.65) 0%, rgba(10,13,12,0.82) 100%);
            z-index: 1;
        }
        .category-hero .container-main {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--coldgray);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--acid);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: #d4ff5e;
        }
        .breadcrumb .sep {
            color: var(--graytext);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: #ffffff;
            font-weight: 500;
        }

        /* 筛选工具条 */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            padding: 16px 0;
            border-bottom: 1px solid #e0e6e1;
        }
        .filter-pill {
            padding: 8px 20px;
            border-radius: 999px;
            border: 1px solid #d0d8d2;
            font-size: 0.88rem;
            font-weight: 500;
            color: #5a6560;
            transition: all var(--transition);
            white-space: nowrap;
            background-color: #fff;
        }
        .filter-pill:hover {
            border-color: var(--acid);
            color: var(--carbon);
            background-color: rgba(197, 255, 60, 0.06);
        }
        .filter-pill.active {
            background-color: var(--acid);
            color: var(--carbon);
            border-color: var(--acid);
            font-weight: 700;
        }
        .filter-select {
            padding: 8px 16px;
            border-radius: 999px;
            border: 1px solid #d0d8d2;
            font-size: 0.88rem;
            font-weight: 500;
            color: #5a6560;
            background-color: #fff;
            cursor: pointer;
            transition: all var(--transition);
            appearance: auto;
        }
        .filter-select:hover,
        .filter-select:focus {
            border-color: var(--acid);
        }

        /* 图文交错列表 */
        .reward-list {
            display: flex;
            flex-direction: column;
            gap: 36px;
        }
        .reward-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            background-color: #ffffff;
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid #e8ede9;
            transition: all var(--transition);
        }
        .reward-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(197, 255, 60, 0.5);
        }
        .reward-item:nth-child(even) {
            direction: rtl;
        }
        .reward-item:nth-child(even) > * {
            direction: ltr;
        }
        .reward-item .reward-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/10;
            background-color: #eef1ef;
        }
        .reward-item .reward-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .reward-item:hover .reward-image img {
            transform: scale(1.04);
        }
        .reward-content {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .reward-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            background-color: rgba(197, 255, 60, 0.15);
            color: #3a6b00;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            width: fit-content;
            border: 1px solid rgba(197, 255, 60, 0.4);
        }
        .reward-title {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--carbon);
            line-height: 1.4;
        }
        .reward-desc {
            font-size: 0.95rem;
            color: #5a6560;
            line-height: 1.8;
        }
        .reward-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--graytext);
            font-weight: 500;
        }
        .reward-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .reward-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--carbon);
            transition: all var(--transition);
            margin-top: 4px;
        }
        .reward-link:hover {
            color: var(--acid-alt);
            gap: 10px;
        }

        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 36px 0 12px;
            flex-wrap: wrap;
        }
        .page-btn {
            width: 44px;
            height: 44px;
            border-radius: 999px;
            border: 1px solid #d0d8d2;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.92rem;
            color: #5a6560;
            transition: all var(--transition);
            background-color: #fff;
        }
        .page-btn:hover {
            border-color: var(--acid);
            color: var(--carbon);
            background-color: rgba(197, 255, 60, 0.06);
        }
        .page-btn.active {
            background-color: var(--acid);
            color: var(--carbon);
            border-color: var(--acid);
            font-weight: 700;
        }
        .page-btn.dots {
            border: none;
            background: none;
            cursor: default;
            color: var(--graytext);
        }

        /* 特色卖点 */
        .feature-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 20px;
        }
        .feature-card {
            background-color: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid #e8ede9;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(197, 255, 60, 0.5);
        }
        .feature-card .feature-number {
            font-family: var(--font-condensed);
            font-size: 2.8rem;
            font-weight: 900;
            color: #d0d8d2;
            line-height: 1;
            margin-bottom: 12px;
        }
        .feature-card:hover .feature-number {
            color: var(--acid);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--carbon);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: #5a6560;
            line-height: 1.8;
        }
        .feature-card.feature-large {
            grid-row: span 2;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .feature-card.feature-large .feature-number {
            font-size: 4rem;
        }
        .feature-card.feature-large h3 {
            font-size: 1.5rem;
        }

        /* 流程步骤 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .process-step {
            background-color: #ffffff;
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            border: 1px solid #e8ede9;
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: all var(--transition);
            position: relative;
        }
        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(197, 255, 60, 0.5);
        }
        .process-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 999px;
            background-color: var(--acid);
            color: var(--carbon);
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }
        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--carbon);
        }
        .process-step p {
            font-size: 0.85rem;
            color: #5a6560;
            line-height: 1.7;
        }

        /* FAQ */
        .faq-item {
            background-color: #ffffff;
            border-radius: var(--radius-md);
            border: 1px solid #e8ede9;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: 0 1px 4px rgba(10,13,12,0.04);
        }
        .faq-item:hover {
            border-color: rgba(197, 255, 60, 0.5);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--carbon);
            text-align: left;
            transition: all var(--transition);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: rgba(197, 255, 60, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--carbon);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background-color: var(--acid);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            color: #5a6560;
            font-size: 0.92rem;
            line-height: 1.85;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        /* CTA 区块 */
        .cta-section {
            background-color: var(--carbon);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(197,255,60,0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
            position: relative;
            z-index: 2;
        }
        .cta-form input,
        .cta-form select {
            padding: 14px 18px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.2);
            background-color: rgba(255,255,255,0.06);
            color: #fff;
            font-size: 0.92rem;
            transition: all var(--transition);
        }
        .cta-form input::placeholder {
            color: var(--graytext);
        }
        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--acid);
            background-color: rgba(255,255,255,0.1);
        }
        .cta-form select {
            color: #d8e0da;
            appearance: auto;
            cursor: pointer;
        }
        .cta-form select option {
            color: var(--carbon);
            background-color: #fff;
        }
        .btn-primary {
            padding: 14px 28px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 1px solid var(--acid);
            text-align: center;
        }
        .btn-primary:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 20px rgba(197, 255, 60, 0.4);
            transform: translateY(-2px);
        }
        .btn-outline {
            padding: 13px 26px;
            background: transparent;
            color: #fff;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.92rem;
            transition: all var(--transition);
            border: 1px solid rgba(255,255,255,0.3);
            text-align: center;
        }
        .btn-outline:hover {
            background-color: rgba(255,255,255,0.08);
            border-color: var(--acid);
            color: var(--acid);
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--carbon);
            color: #d8e0da;
            padding: 64px 0 0;
            margin-top: 80px;
            border-top: 1px solid rgba(197, 255, 60, 0.1);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand .footer-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.4rem;
            letter-spacing: 0.1em;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo .logo-mark {
            display: inline-block;
            width: 12px;
            height: 12px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--graytext);
            line-height: 1.8;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 0.88rem;
            color: var(--graytext);
            transition: all var(--transition);
            display: inline-block;
            padding: 2px 0;
        }
        .footer-col ul a:hover {
            color: var(--acid);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--graytext);
        }
        .footer-bottom a {
            color: var(--graytext);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--acid);
        }
        .footer-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* 数据面板 */
        .hero-stats {
            display: flex;
            gap: 20px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .hero-stat {
            background-color: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            backdrop-filter: blur(4px);
        }
        .hero-stat .stat-value {
            font-family: var(--font-condensed);
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--acid);
            line-height: 1.2;
        }
        .hero-stat .stat-label {
            font-size: 0.8rem;
            color: var(--coldgray);
            margin-top: 2px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .feature-card.feature-large {
                grid-column: span 2;
                grid-row: auto;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
            .footer-brand {
                grid-column: span 3;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
            }
            .mobile-drawer {
                display: block;
            }
            .category-hero {
                min-height: 280px;
                padding: 48px 0 36px;
            }
            .reward-item {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 16px;
            }
            .reward-item:nth-child(even) {
                direction: ltr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-card.feature-large {
                grid-column: auto;
            }
            .cta-form {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 32px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: span 2;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
        }
        @media (max-width: 520px) {
            .nav-inner {
                height: 60px;
            }
            .nav-logo {
                font-size: 1.3rem;
            }
            .category-hero {
                min-height: 240px;
                padding: 36px 0 28px;
            }
            .hero-stats {
                gap: 10px;
            }
            .hero-stat {
                padding: 10px 14px;
            }
            .hero-stat .stat-value {
                font-size: 1.2rem;
            }
            .filter-bar {
                gap: 6px;
            }
            .filter-pill {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: auto;
            }
            .pagination {
                gap: 6px;
            }
            .page-btn {
                width: 36px;
                height: 36px;
                font-size: 0.82rem;
            }
        }

/* roulang page: category6 */
:root {
            --carbon: #0A0D0C;
            --acid: #C5FF3C;
            --acid-alt: #AEEA00;
            --cloud: #F4F6F4;
            --coldgray: #B8C2BD;
            --borderc: #202826;
            --graytext: #8A9690;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px rgba(10, 13, 12, 0.08);
            --shadow-hover: 0 8px 32px rgba(10, 13, 12, 0.16);
            --transition: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'sans-serif';
            --font-condensed: 'Roboto Condensed', 'DIN Condensed', 'Noto Sans SC', 'sans-serif';
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-weight: 400;
            line-height: 1.75;
            color: var(--carbon);
            background-color: var(--cloud);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--acid-alt);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container-main {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--carbon);
            border-bottom: 1px solid rgba(197, 255, 60, 0.12);
            transition: background-color var(--transition);
        }
        .site-header.scrolled {
            background-color: rgba(10, 13, 12, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .nav-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.6rem;
            letter-spacing: 0.14em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-logo .logo-mark {
            display: inline-block;
            width: 14px;
            height: 14px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            margin-right: 4px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 500;
            color: #d8e0da;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: #fff;
            background-color: rgba(197, 255, 60, 0.08);
        }
        .nav-links a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }
        .nav-cta {
            margin-left: 8px;
            padding: 10px 22px;
            background-color: var(--acid);
            color: var(--carbon) !important;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.88rem;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 16px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon) !important;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(197, 255, 60, 0.25);
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.3rem;
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: rgba(197, 255, 60, 0.6);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 420px;
            height: 100vh;
            background-color: var(--carbon);
            z-index: 200;
            padding: 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            border-left: 1px solid rgba(197, 255, 60, 0.15);
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }
        .mobile-drawer .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mobile-drawer nav a {
            display: block;
            padding: 14px 16px;
            margin-bottom: 6px;
            border-radius: 8px;
            color: #d8e0da;
            font-size: 1rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all var(--transition);
        }
        .mobile-drawer nav a:hover {
            background-color: rgba(197, 255, 60, 0.08);
            color: #fff;
        }
        .mobile-drawer nav a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-drawer {
                display: block;
            }
        }
        @media (min-width: 1025px) {
            .mobile-drawer {
                display: none !important;
            }
        }
        .drawer-backdrop {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 150;
            display: none;
        }
        .drawer-backdrop.open {
            display: block;
        }
        .section-pad {
            padding-top: 72px;
            padding-bottom: 72px;
        }
        @media (min-width: 768px) {
            .section-pad {
                padding-top: 96px;
                padding-bottom: 96px;
            }
        }
        @media (min-width: 1280px) {
            .section-pad {
                padding-top: 112px;
                padding-bottom: 112px;
            }
        }
        .hero-cat {
            position: relative;
            min-height: 44vh;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .hero-cat::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 13, 12, 0.88) 0%, rgba(10, 13, 12, 0.55) 55%, rgba(10, 13, 12, 0.75) 100%);
            z-index: 1;
        }
        .hero-cat::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: repeating-linear-gradient(0deg, rgba(197, 255, 60, 0.04) 0px, rgba(197, 255, 60, 0.04) 1px, transparent 1px, transparent 40px), repeating-linear-gradient(90deg, rgba(197, 255, 60, 0.03) 0px, rgba(197, 255, 60, 0.03) 1px, transparent 1px, transparent 60px);
            z-index: 1;
            pointer-events: none;
        }
        .hero-cat .hero-content {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--acid);
        }
        .breadcrumb .sep {
            opacity: 0.5;
        }
        .breadcrumb .current {
            color: var(--acid);
            font-weight: 600;
        }
        .tag-pill {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 500;
            border: 1px solid rgba(197, 255, 60, 0.35);
            color: var(--carbon);
            background-color: transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .tag-pill:hover {
            border-color: var(--acid);
            background-color: rgba(197, 255, 60, 0.1);
        }
        .tag-pill.active {
            background-color: var(--carbon);
            color: var(--acid);
            border-color: var(--carbon);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background-color: var(--acid);
            color: var(--carbon);
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 20px rgba(197, 255, 60, 0.4);
            transform: translateY(-2px);
            color: var(--carbon);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background-color: transparent;
            color: #fff;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.35);
        }
        .btn-secondary:hover {
            border-color: var(--acid);
            color: var(--acid);
            background-color: rgba(197, 255, 60, 0.08);
        }
        .btn-dark {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background-color: var(--carbon);
            color: #fff;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 1px solid var(--borderc);
        }
        .btn-dark:hover {
            border-color: var(--acid);
            color: var(--acid);
            background-color: #111614;
        }
        .card-hover {
            transition: all var(--transition);
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--acid);
        }
        .card-hover:hover img {
            transform: scale(1.03);
        }
        .card-hover img {
            transition: transform 0.4s ease;
        }
        .stat-num {
            font-family: var(--font-condensed);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--carbon);
        }
        .faq-item {
            border-bottom: 1px solid var(--borderc);
            transition: all var(--transition);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 0;
            font-weight: 600;
            font-size: 1rem;
            color: var(--carbon);
            cursor: pointer;
            transition: color var(--transition);
            text-align: left;
            width: 100%;
        }
        .faq-question:hover {
            color: var(--acid-alt);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--borderc);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 400;
            transition: all var(--transition);
            color: var(--graytext);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0;
            color: var(--graytext);
            font-size: 0.95rem;
            line-height: 1.85;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            border-color: var(--acid);
            color: var(--acid);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 20px;
        }
        .tier-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
        }
        .tier-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .tier-card .tier-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .focus-ring:focus-visible {
            outline: 2px solid var(--acid);
            outline-offset: 2px;
        }
        .site-footer {
            background-color: var(--carbon);
            color: #b8c2bd;
            padding-top: 64px;
            padding-bottom: 24px;
            border-top: 1px solid rgba(197, 255, 60, 0.1);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        .footer-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.4rem;
            letter-spacing: 0.12em;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .footer-logo .logo-mark {
            display: inline-block;
            width: 12px;
            height: 12px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: #8a9690;
            max-width: 360px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: #8a9690;
            font-size: 0.88rem;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--acid);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.78rem;
            color: #6b7670;
        }
        .footer-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom a {
            color: #6b7670;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--acid);
        }
        @media (max-width: 640px) {
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        .list-item-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        @media (max-width: 768px) {
            .list-item-grid {
                grid-template-columns: 1fr;
            }
        }
        .pagination-dots {
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .pagination-dots .page-dot {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--borderc);
            color: var(--graytext);
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .pagination-dots .page-dot:hover {
            border-color: var(--acid);
            color: var(--acid);
        }
        .pagination-dots .page-dot.active {
            background-color: var(--acid);
            color: var(--carbon);
            border-color: var(--acid);
            font-weight: 700;
        }
        .pagination-dots .page-dot.prev-next {
            width: auto;
            padding: 0 18px;
            border-radius: 999px;
        }
        .spec-panel {
            background-color: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid #e2e8e2;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .spec-panel.dark-panel {
            background-color: var(--carbon);
            border-color: var(--borderc);
            color: #d8e0da;
        }
        .spec-panel.dark-panel .spec-title {
            color: #fff;
        }
        .spec-panel.dark-panel .spec-desc {
            color: #8a9690;
        }
        .btn-white-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.88rem;
            transition: all var(--transition);
        }
        .btn-white-outline:hover {
            border-color: var(--acid);
            color: var(--acid);
            background: rgba(197, 255, 60, 0.06);
        }
        .acid-text {
            color: var(--acid);
        }
        .carbon-text {
            color: var(--carbon);
        }
        .graytext {
            color: var(--graytext);
        }
        .bg-cloud {
            background-color: var(--cloud);
        }
        .bg-carbon {
            background-color: var(--carbon);
        }
        .border-soft {
            border-color: var(--borderc);
        }
        .radius-md {
            border-radius: var(--radius-md);
        }
        .radius-lg {
            border-radius: var(--radius-lg);
        }
        .shadow-card {
            box-shadow: var(--shadow-card);
        }
        .transition-base {
            transition: all var(--transition);
        }
        .font-condensed {
            font-family: var(--font-condensed);
        }

/* roulang page: category7 */
:root {
            --carbon: #0A0D0C;
            --acid: #C5FF3C;
            --acid-alt: #AEEA00;
            --cloud: #F4F6F4;
            --coldgray: #B8C2BD;
            --borderc: #202826;
            --graytext: #8A9690;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px rgba(10, 13, 12, 0.08);
            --shadow-hover: 0 8px 32px rgba(10, 13, 12, 0.16);
            --transition: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-condensed: 'Roboto Condensed', 'DIN Condensed', 'Noto Sans SC', sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-weight: 400;
            line-height: 1.75;
            color: var(--carbon);
            background-color: var(--cloud);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--acid-alt);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container-main {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--carbon);
            border-bottom: 1px solid rgba(197, 255, 60, 0.12);
            transition: background-color var(--transition);
        }

        .site-header.scrolled {
            background-color: rgba(10, 13, 12, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.6rem;
            letter-spacing: 0.14em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo .logo-mark {
            display: inline-block;
            width: 14px;
            height: 14px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            margin-right: 4px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 500;
            color: #d8e0da;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: #fff;
            background-color: rgba(197, 255, 60, 0.08);
            border-color: rgba(197, 255, 60, 0.4);
        }

        .nav-links a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        .nav-cta {
            margin-left: 8px;
            padding: 10px 24px;
            background-color: var(--acid);
            color: var(--carbon) !important;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.92rem;
            transition: all var(--transition);
        }

        .nav-cta:hover {
            background-color: #d4ff5e;
            box-shadow: 0 4px 16px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon) !important;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(197, 255, 60, 0.25);
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: rgba(197, 255, 60, 0.6);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 420px;
            height: 100vh;
            background-color: var(--carbon);
            z-index: 200;
            padding: 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            border-left: 1px solid rgba(197, 255, 60, 0.15);
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .mobile-drawer .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-drawer nav a {
            display: block;
            padding: 14px 16px;
            margin-bottom: 6px;
            border-radius: 8px;
            color: #d8e0da;
            font-size: 1rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all var(--transition);
        }

        .mobile-drawer nav a:hover {
            background-color: rgba(197, 255, 60, 0.1);
            border-color: rgba(197, 255, 60, 0.3);
        }

        .mobile-drawer nav a.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0, 0, 0, 0.6);
            z-index: 150;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.open {
            opacity: 1;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-drawer {
                display: block;
            }
            .drawer-overlay {
                display: block;
                pointer-events: none;
            }
            .drawer-overlay.open {
                pointer-events: auto;
            }
        }

        /* 窄 Hero */
        .cat-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background: var(--carbon);
            overflow: hidden;
            isolation: isolate;
        }

        .cat-hero-bg {
            position: absolute;
            inset: 0;
            z-index: -1;
            background-size: cover;
            background-position: center 30%;
            opacity: 0.45;
            filter: saturate(0.7);
        }

        .cat-hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 13, 12, 0.92) 0%, rgba(10, 13, 12, 0.65) 55%, rgba(10, 13, 12, 0.4) 100%);
        }

        .cat-hero-content {
            position: relative;
            z-index: 2;
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--coldgray);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--coldgray);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--acid);
        }

        .breadcrumb .sep {
            color: rgba(184, 194, 189, 0.5);
            font-size: 0.8rem;
        }

        .breadcrumb .current {
            color: var(--acid);
            font-weight: 600;
            pointer-events: none;
        }

        .cat-hero h1 {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 3rem;
            letter-spacing: 0.04em;
            color: #ffffff;
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .cat-hero h1 .highlight {
            color: var(--acid);
        }

        .cat-hero-desc {
            max-width: 640px;
            color: rgba(216, 224, 218, 0.85);
            font-size: 1.05rem;
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .cat-hero {
                min-height: 260px;
            }
            .cat-hero h1 {
                font-size: 2rem;
            }
            .cat-hero-desc {
                font-size: 0.95rem;
            }
        }

        /* 筛选工具条 */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 32px;
            margin-bottom: 24px;
            padding: 12px 16px;
            background: rgba(10, 13, 12, 0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(10, 13, 12, 0.06);
        }

        .filter-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--graytext);
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            flex: 1;
        }

        .filter-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--carbon);
            border: 1px solid rgba(10, 13, 12, 0.15);
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
            background: #fff;
        }

        .filter-tag:hover {
            border-color: var(--acid-alt);
            color: var(--carbon);
            background-color: rgba(197, 255, 60, 0.15);
        }

        .filter-tag.active {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
            border-color: var(--acid);
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            border: 1px solid rgba(10, 13, 12, 0.15);
            font-size: 0.85rem;
            color: var(--carbon);
            background: #fff;
            transition: all var(--transition);
            cursor: pointer;
        }

        .filter-sort:hover {
            border-color: var(--acid-alt);
        }

        /* 列表卡片 */
        .cat-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
            margin-bottom: 48px;
        }

        .cat-card {
            display: grid;
            grid-template-columns: 380px 1fr;
            gap: 0;
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(10, 13, 12, 0.06);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

        .cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(197, 255, 60, 0.5);
        }

        .cat-card:nth-child(even) {
            grid-template-columns: 1fr 380px;
        }

        .cat-card:nth-child(even) .cat-card-img {
            order: 2;
        }

        .cat-card:nth-child(even) .cat-card-body {
            order: 1;
        }

        .cat-card-img {
            position: relative;
            min-height: 260px;
            overflow: hidden;
            background: var(--carbon);
        }

        .cat-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .cat-card:hover .cat-card-img img {
            transform: scale(1.04);
        }

        .cat-card-img .img-index {
            position: absolute;
            top: 16px;
            left: 16px;
            width: 40px;
            height: 40px;
            background-color: var(--acid);
            color: var(--carbon);
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 4px;
            z-index: 2;
        }

        .cat-card-body {
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .cat-card-tag {
            display: inline-block;
            align-self: flex-start;
            padding: 4px 12px;
            border-radius: 999px;
            background-color: rgba(197, 255, 60, 0.18);
            color: #3a4a00;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

        .cat-card-body h3 {
            font-family: var(--font-condensed);
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--carbon);
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .cat-card-body p {
            font-size: 0.95rem;
            color: #4a5551;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .cat-card-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--graytext);
        }

        .cat-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .cat-card-meta .dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background-color: var(--acid-alt);
        }

        @media (max-width: 900px) {
            .cat-card {
                grid-template-columns: 1fr !important;
            }
            .cat-card:nth-child(even) .cat-card-img {
                order: 1;
            }
            .cat-card:nth-child(even) .cat-card-body {
                order: 2;
            }
            .cat-card-img {
                min-height: 200px;
            }
            .cat-card-body {
                padding: 20px 24px;
            }
        }

        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-bottom: 56px;
            flex-wrap: wrap;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 44px;
            height: 44px;
            padding: 0 12px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .pagination a {
            color: var(--carbon);
            border-color: rgba(10, 13, 12, 0.15);
            background: #fff;
        }

        .pagination a:hover {
            border-color: var(--acid-alt);
            color: var(--carbon);
            background-color: rgba(197, 255, 60, 0.1);
        }

        .pagination .current {
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 900;
            border-color: var(--acid);
        }

        .pagination .dots {
            color: var(--graytext);
            border-color: transparent;
            background: transparent;
        }

        /* 数据指标 */
        .metrics-band {
            background: var(--carbon);
            padding: 72px 0;
            margin-bottom: 0;
            position: relative;
            overflow: hidden;
        }

        .metrics-band::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -60px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(197, 255, 60, 0.06);
            pointer-events: none;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .metric-item {
            text-align: center;
        }

        .metric-value {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 3rem;
            color: var(--acid);
            line-height: 1.1;
            letter-spacing: 0.02em;
        }

        .metric-label {
            color: rgba(216, 224, 218, 0.75);
            font-size: 0.9rem;
            margin-top: 8px;
            letter-spacing: 0.04em;
        }

        @media (max-width: 768px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .metric-value {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 420px) {
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .metric-value {
                font-size: 1.7rem;
            }
        }

        /* 品牌介绍区块 */
        .brand-intro {
            padding: 80px 0;
            background: #fff;
        }

        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            min-height: 280px;
            background: var(--carbon);
        }

        .brand-intro-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brand-intro-text h2 {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.9rem;
            color: var(--carbon);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .brand-intro-text p {
            color: #4a5551;
            font-size: 0.98rem;
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .capability-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .capability-tag {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 999px;
            background: rgba(197, 255, 60, 0.12);
            border: 1px solid rgba(197, 255, 60, 0.3);
            font-size: 0.85rem;
            font-weight: 600;
            color: #3a4a00;
            transition: all var(--transition);
        }

        .capability-tag:hover {
            background: rgba(197, 255, 60, 0.22);
            border-color: var(--acid-alt);
        }

        .capability-tag .tag-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--acid-alt);
        }

        @media (max-width: 900px) {
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* FAQ */
        .faq-section {
            padding: 80px 0;
            background: var(--cloud);
        }

        .faq-section .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .faq-section .section-head h2 {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.2rem;
            color: var(--carbon);
            margin-bottom: 12px;
        }

        .faq-section .section-head p {
            color: var(--graytext);
            font-size: 1rem;
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid rgba(10, 13, 12, 0.06);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(197, 255, 60, 0.4);
        }

        .faq-item.open {
            border-color: var(--acid-alt);
            box-shadow: 0 4px 16px rgba(10, 13, 12, 0.06);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--carbon);
            transition: color var(--transition);
            gap: 16px;
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            color: #3a4a00;
        }

        .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(197, 255, 60, 0.15);
            color: #3a4a00;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: all var(--transition);
            font-weight: 400;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--acid);
            color: var(--carbon);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: #4a5551;
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px 24px;
        }

        /* CTA */
        .cta-section {
            padding: 80px 0;
            background: var(--carbon);
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(197, 255, 60, 0.05);
            pointer-events: none;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-info h2 {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 2.2rem;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-info h2 .highlight {
            color: var(--acid);
        }

        .cta-info p {
            color: rgba(216, 224, 218, 0.75);
            font-size: 0.98rem;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 32px;
            background-color: var(--acid);
            color: var(--carbon);
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: 999px;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background-color: #d4ff5e;
            box-shadow: 0 6px 20px rgba(197, 255, 60, 0.35);
            transform: translateY(-2px);
            color: var(--carbon);
        }

        .btn-secondary {
            display: inline-block;
            padding: 14px 32px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .cta-form {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(197, 255, 60, 0.15);
            border-radius: var(--radius-md);
            padding: 32px;
            backdrop-filter: blur(10px);
        }

        .cta-form h3 {
            color: var(--acid);
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 20px;
            font-family: var(--font-condensed);
            letter-spacing: 0.04em;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-group label {
            font-size: 0.85rem;
            font-weight: 600;
            color: rgba(216, 224, 218, 0.8);
            margin-bottom: 6px;
            letter-spacing: 0.04em;
        }

        .form-group input,
        .form-group select {
            padding: 12px 16px;
            border-radius: 4px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.04);
            color: #fff;
            font-size: 0.92rem;
            transition: all var(--transition);
        }

        .form-group input::placeholder {
            color: rgba(216, 224, 218, 0.4);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--acid);
            background: rgba(255, 255, 255, 0.06);
            box-shadow: 0 0 0 2px rgba(197, 255, 60, 0.15);
        }

        .form-group select option {
            background: var(--carbon);
            color: #fff;
        }

        .form-submit {
            width: 100%;
            padding: 14px;
            background: var(--acid);
            color: var(--carbon);
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: 4px;
            transition: all var(--transition);
            letter-spacing: 0.04em;
            margin-top: 8px;
        }

        .form-submit:hover {
            background: #d4ff5e;
            box-shadow: 0 6px 20px rgba(197, 255, 60, 0.3);
        }

        @media (max-width: 900px) {
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--carbon);
            color: rgba(216, 224, 218, 0.75);
            padding: 64px 0 32px;
            border-top: 1px solid rgba(197, 255, 60, 0.1);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand .footer-logo {
            font-family: var(--font-condensed);
            font-weight: 900;
            font-size: 1.5rem;
            color: #fff;
            letter-spacing: 0.12em;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .footer-logo .logo-mark {
            display: inline-block;
            width: 14px;
            height: 14px;
            background-color: var(--acid);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(216, 224, 218, 0.6);
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul a {
            color: rgba(216, 224, 218, 0.6);
            font-size: 0.9rem;
            transition: all var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--acid);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.82rem;
            color: rgba(216, 224, 218, 0.45);
        }

        .footer-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: rgba(216, 224, 218, 0.55);
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--acid);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* 通用过渡 */
        .section-pad {
            padding-top: 80px;
            padding-bottom: 80px;
        }

        @media (max-width: 768px) {
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
        }