/* roulang page: index */
:root {
            --primary: #4F46E5;
            --primary-dark: #4338CA;
            --primary-light: #EEF2FF;
            --accent: #F59E0B;
            --accent-dark: #D97706;
            --surface: #FFFFFF;
            --bg: #F8FAFC;
            --text: #1E293B;
            --text-light: #64748B;
            --border: #E2E8F0;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.10);
            --space-section: 100px;
            --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 100px;
        }
        body {
            font-family: var(--font-base);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
            width: 100%;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            border: 2px solid transparent;
            transition: all .25s ease;
            background: var(--primary);
            color: #fff;
            justify-content: center;
            white-space: normal;
        }
        .btn:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
        }
        .btn-cta {
            background: var(--accent);
            color: #fff;
            border-color: transparent;
        }
        .btn-cta:hover {
            background: var(--accent-dark);
            color: #fff;
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
        }
        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        .section {
            padding: var(--space-section) 0;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 20px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }
        .section-head h2 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 14px;
        }
        .section-head p {
            color: var(--text-light);
            font-size: 16px;
            line-height: 1.6;
        }
        .site-header {
            position: fixed;
            top: 18px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 999;
            width: 94%;
            max-width: 1280px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.4);
            border-radius: 999px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.07);
            padding: 10px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .logo a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text);
        }
        .logo-mark {
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 800;
            padding: 5px 12px;
            border-radius: 12px;
            letter-spacing: 1px;
        }
        .logo-text {
            font-weight: 700;
            font-size: 20px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: all .2s ease;
            line-height: 1.3;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .header-cta .btn {
            padding: 10px 22px;
            font-size: 14px;
            white-space: nowrap;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: background .2s;
        }
        .nav-toggle:hover {
            background: var(--primary);
            color: #fff;
        }
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            text-align: center;
            padding: 140px 0 100px;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.75) 0%, rgba(30, 27, 75, 0.55) 50%, rgba(15, 23, 42, 0.75) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(10px);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 22px;
            border-radius: 999px;
            margin-bottom: 28px;
            letter-spacing: 1px;
        }
        .hero h1 {
            font-size: clamp(40px, 7vw, 68px);
            font-weight: 900;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: 1px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .hero h1 span {
            display: block;
            font-size: clamp(20px, 3vw, 30px);
            font-weight: 600;
            color: rgba(255, 255, 255, 0.9);
            margin-top: 12px;
            letter-spacing: 2px;
        }
        .hero p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 18px;
            line-height: 1.7;
            max-width: 600px;
            margin: 0 auto 36px;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 56px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
            color: #fff;
            border-right: 1px solid rgba(255, 255, 255, 0.2);
            padding-right: 40px;
            padding-left: 10px;
        }
        .hero-stat:last-child {
            border-right: none;
        }
        .hero-stat .num {
            font-size: 32px;
            font-weight: 800;
            display: block;
        }
        .hero-stat .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }
        .stats-section {
            padding: 60px 0;
            margin-top: -36px;
            position: relative;
            z-index: 10;
        }
        .stats-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px 24px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            border: 1px solid var(--border);
        }
        .stat-item {
            text-align: center;
            padding: 10px 8px;
        }
        .stat-item .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
        }
        .stat-item .stat-number em {
            font-style: normal;
            font-size: 20px;
            font-weight: 600;
            color: var(--text-light);
        }
        .stat-item .stat-label {
            font-size: 15px;
            color: var(--text-light);
            margin-top: 8px;
            font-weight: 400;
        }
        .categories-section {
            background: var(--surface);
            padding: 70px 0;
        }
        .category-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .card-img-wrap {
            position: relative;
            height: 220px;
            overflow: hidden;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .category-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            backdrop-filter: blur(8px);
            box-shadow: var(--shadow-sm);
        }
        .category-card .card-body {
            padding: 28px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .category-card p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            color: var(--primary);
            margin-top: auto;
            transition: gap .2s;
        }
        .card-link:hover {
            gap: 12px;
            color: var(--primary-dark);
        }
        .features-section {
            background: var(--bg);
            padding: var(--space-section) 0;
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 36px 28px;
            transition: all .3s ease;
            height: 100%;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .feature-icon {
            width: 60px;
            height: 60px;
            background: var(--primary-light);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 20px;
            transition: all .3s ease;
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.65;
            margin-bottom: 0;
        }
        .news-section {
            background: var(--surface);
            padding: var(--space-section) 0;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            max-width: 960px;
            margin: 0 auto;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            background: #fff;
            border: 1px solid var(--border);
            border-bottom: none;
            transition: all .25s ease;
        }
        .news-item:first-child {
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .news-item:last-child {
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            border-bottom: 1px solid var(--border);
        }
        .news-item:hover {
            background: var(--primary-light);
            border-color: rgba(79, 70, 229, 0.3);
            position: relative;
            z-index: 1;
        }
        .news-badge {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            flex-shrink: 0;
            min-width: 80px;
            text-align: center;
        }
        .news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            flex: 1;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .news-desc {
            font-size: 14px;
            color: var(--text-light);
            flex: 2;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .news-date {
            font-size: 14px;
            color: var(--text-light);
            flex-shrink: 0;
        }
        .empty-state {
            text-align: center;
            padding: 50px 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border);
            color: var(--text-light);
            font-size: 16px;
        }
        .process-section {
            background: linear-gradient(135deg, #1E1B4B 0%, #312E81 100%);
            padding: var(--space-section) 0;
            position: relative;
            overflow: hidden;
        }
        .process-section .section-tag {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .process-section .section-head h2 {
            color: #fff;
        }
        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .process-item {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            transition: all .3s ease;
            position: relative;
        }
        .process-item:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-6px);
        }
        .process-icon {
            width: 72px;
            height: 72px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: var(--accent);
            margin: 0 auto 24px;
        }
        .process-num {
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 40px;
            font-weight: 900;
            color: rgba(255, 255, 255, 0.1);
            line-height: 1;
        }
        .process-item h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .process-item p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            line-height: 1.65;
        }
        .faq-section {
            background: var(--bg);
            padding: var(--space-section) 0;
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow .3s;
        }
        .faq-item.active {
            box-shadow: var(--shadow-md);
            border-color: rgba(79, 70, 229, 0.4);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 28px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            background: #fff;
            text-align: left;
            transition: color .2s;
        }
        .faq-question i {
            color: var(--text-light);
            transition: transform .3s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
            padding: 0 28px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
            border-top: 0 solid var(--border);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 28px 24px;
            border-top-width: 1px;
        }
        .cta-section {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 110px 0;
            text-align: center;
            overflow: hidden;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.88), rgba(30, 27, 75, 0.92));
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: clamp(28px, 5vw, 44px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 36px;
        }
        .site-footer {
            background: #0F172A;
            padding: 70px 0 0;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-brand {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand .logo-mark {
            font-size: 14px;
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.7;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color .2s, padding-left .2s;
        }
        .site-footer ul a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .social-icons {
            display: flex;
            gap: 14px;
        }
        .social-icons a {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            transition: all .3s ease;
        }
        .social-icons a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-bottom {
            margin-top: 50px;
            padding: 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
        }
        .footer-bottom p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            margin: 0;
        }
        @media (max-width: 991px) {
            .main-nav {
                position: absolute;
                top: calc(100% + 12px);
                left: 0;
                right: 0;
                background: #fff;
                border-radius: var(--radius-lg);
                box-shadow: var(--shadow-lg);
                padding: 16px;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                display: none;
                border: 1px solid var(--border);
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 18px;
                width: 100%;
                border-radius: var(--radius-sm);
                font-size: 16px;
            }
            .nav-toggle {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .hero-stats {
                gap: 20px;
                margin-top: 40px;
            }
            .hero-stat {
                padding-right: 25px;
                padding-left: 5px;
            }
            .hero-stat .num {
                font-size: 24px;
            }
            .stats-card {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .process-grid {
                grid-template-columns: 1fr;
                max-width: 520px;
            }
            .news-item {
                flex-wrap: wrap;
                gap: 8px 16px;
                padding: 18px 20px;
            }
            .news-title {
                flex-basis: calc(100% - 100px);
                white-space: normal;
                line-height: 1.4;
            }
            .news-desc {
                flex-basis: 100%;
                white-space: normal;
            }
            .news-badge {
                order: -1;
            }
            .news-date {
                margin-left: auto;
            }
        }
        @media (max-width: 767px) {
            :root {
                --space-section: 64px;
            }
            .site-header {
                width: 96%;
                padding: 8px 16px;
                border-radius: 20px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-mark {
                font-size: 13px;
                padding: 4px 10px;
            }
            .hero {
                min-height: 85vh;
                padding: 120px 0 70px;
                background-attachment: scroll;
            }
            .hero h1 {
                font-size: 36px;
            }
            .hero h1 span {
                font-size: 18px;
            }
            .hero p {
                font-size: 16px;
            }
            .hero-stat {
                border-right: none;
                padding: 0 10px;
            }
            .hero-stats {
                gap: 12px;
            }
            .stats-card {
                padding: 30px 16px;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: 32px;
            }
            .category-card .card-body {
                padding: 22px 18px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.active .faq-answer {
                padding: 12px 18px 18px;
            }
        }
        @media (max-width: 520px) {
            .btn {
                padding: 12px 20px;
                font-size: 14px;
                width: 100%;
            }
            .hero-btns {
                flex-direction: column;
                width: 100%;
                max-width: 280px;
                margin: 0 auto;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 18px 30px;
            }
            .hero-stat {
                flex: 1 1 auto;
                min-width: 100px;
                padding: 0;
            }
            .hero-stat .num {
                font-size: 22px;
            }
            .hero-stat .label {
                font-size: 12px;
            }
            .news-item {
                padding: 14px 16px;
            }
            .news-title {
                font-size: 14px;
                flex-basis: 100%;
            }
            .news-desc {
                font-size: 13px;
            }
            .news-date {
                font-size: 12px;
            }
            .footer-brand {
                font-size: 22px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0d1b2a;
            --secondary: #1b2838;
            --accent: #00c8a0;
            --accent-2: #ff6b35;
            --dark-bg: #0a1522;
            --bg-gradient: linear-gradient(135deg, #0d1b2a 0%, #1a2e42 50%, #0f1f2f 100%);
            --bg-deep: #07111c;
            --card-bg: rgba(255, 255, 255, 0.97);
            --text-main: #1a2330;
            --text-weak: #5a6b7c;
            --border-subtle: rgba(255, 255, 255, 0.12);
            --radius-sm: 10px;
            --radius-md: 20px;
            --radius-lg: 32px;
            --shadow-soft: 0 10px 40px rgba(0,0,0,0.08);
            --shadow-card: 0 4px 24px rgba(13,27,42,0.08);
            --spacing-section: 100px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            line-height: 1.7;
            background: #f4f6f8;
            color: var(--text-main);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: all .2s ease;
        }

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

        .btn {
            border-radius: 50px;
            padding: 12px 32px;
            font-weight: 500;
            font-size: 15px;
            transition: all .25s ease;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), #00a584);
            color: #fff;
            box-shadow: 0 6px 24px rgba(0, 200, 160, 0.32);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            color: #fff;
            box-shadow: 0 10px 32px rgba(0, 200, 160, 0.4);
        }

        .btn-light {
            background: rgba(255,255,255,0.12);
            color: #fff;
            border: 1px solid rgba(255,255,255,0.25);
            backdrop-filter: blur(8px);
        }
        .btn-light:hover {
            background: rgba(255,255,255,0.22);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline-light {
            border: 2px solid rgba(255,255,255,0.5);
            color: #fff;
            border-radius: 50px;
            padding: 12px 32px;
        }
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.1);
            border-color: #fff;
            color: #fff;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(0,200,160,0.1);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 30px;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 18px;
        }
        .section-label:before {
            content: '';
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-weak);
            max-width: 640px;
            margin-bottom: 32px;
        }

        .header-placeholder {
            height: 80px;
        }

        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: auto;
            min-width: 600px;
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 24px;
            background: var(--primary);
            border-radius: 50px;
            box-shadow: 0 12px 48px rgba(0, 0, 0, 0.32);
            backdrop-filter: blur(16px);
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 60px;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .logo {
            display: flex;
            align-items: center;
            padding-right: 16px;
        }
        .logo a {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo-mark {
            font-size: 18px;
            font-weight: 800;
            color: var(--accent);
            background: rgba(0,200,160,0.14);
            border-radius: 10px;
            padding: 4px 10px;
            letter-spacing: 1px;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            color: rgba(255,255,255,0.7);
            font-size: 15px;
            font-weight: 400;
            padding: 8px 16px;
            border-radius: 30px;
            transition: all .2s;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: #fff;
            background: rgba(255,255,255,0.1);
        }
        .nav-link.active {
            color: #fff;
            background: var(--accent);
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(0,200,160,0.35);
        }
        .nav-link.active:hover {
            color: #fff;
            background: var(--accent);
        }

        .header-cta {
            margin-left: 8px;
        }
        .header-cta .btn {
            padding: 6px 18px;
            font-size: 13px;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 22px;
            cursor: pointer;
        }

        @media (max-width: 768px) {
            .header-placeholder { height: 70px; }
            .site-header {
                top: 12px;
                width: calc(100% - 24px);
                min-width: 0;
                padding: 0 16px;
                border-radius: 30px;
                min-height: 56px;
            }
            .logo-text { font-size: 16px; letter-spacing: 1px; }
            .logo-mark { font-size: 15px; padding: 3px 8px; }
            .main-nav {
                position: absolute;
                top: calc(100% + 12px);
                left: 16px;
                right: 16px;
                background: var(--primary);
                border-radius: 20px;
                flex-direction: column;
                align-items: stretch;
                padding: 12px;
                box-shadow: 0 24px 60px rgba(0,0,0,0.4);
                display: none;
                gap: 2px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                border-radius: 12px;
                text-align: center;
            }
            .nav-toggle {
                display: block;
                margin-left: auto;
            }
            .header-cta { display: none; }
            .partner-grid { grid-template-columns: 1fr 1fr !important; }
            .section-spacing { padding: 40px 0 !important; }
            .pd-left { padding-left: 0 !important; }
        }

        .site-footer {
            background-color: #0B1520;
            color: rgba(255, 255, 255, 0.75);
            padding: 80px 0 24px;
            position: relative;
            overflow: hidden;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(0,200,160,0.1) 0%, transparent 70%);
            border-radius: 50%;
        }
        .site-footer .container {
            position: relative;
            z-index: 1;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .site-footer ul {
            list-style: none;
            padding-left: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
            font-size: 14px;
            line-height: 1.8;
        }
        .site-footer a {
            color: rgba(255,255,255,0.65);
            text-decoration: none;
        }
        .site-footer a:hover {
            color: var(--accent);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
            font-size: 24px;
            font-weight: 700;
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            margin-top: 48px;
            text-align: center;
        }
        .footer-bottom p {
            color: rgba(255,255,255,0.4);
            font-size: 13px;
            margin: 0;
        }
        .social-icons {
            display: flex;
            gap: 12px;
        }
        .social-icons a {
            width: 42px;
            height: 42px;
            background: rgba(255,255,255,0.08);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            transition: all .2s;
        }
        .social-icons a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
        }

        /* Page-specific */
        .page-banner {
            background: var(--bg-gradient);
            padding: 140px 0 100px;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 600px;
            background: radial-gradient(circle, rgba(0,200,160,0.15) 0%, transparent 65%);
            border-radius: 50%;
        }
        .page-banner .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 20px;
        }
        .page-banner .breadcrumb-item,
        .page-banner .breadcrumb-item a {
            color: rgba(255,255,255,0.65);
            font-size: 14px;
        }
        .page-banner .breadcrumb-item a:hover { color: var(--accent); }
        .page-banner .breadcrumb-item.active { color: rgba(255,255,255,0.9); }
        .page-banner h1 {
            font-size: clamp(2.4rem, 5vw, 3.6rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .page-banner p {
            color: rgba(255,255,255,0.75);
            font-size: 17px;
            max-width: 620px;
            margin-bottom: 28px;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.1);
            border-radius: 30px;
            padding: 6px 18px;
            font-size: 13px;
            color: rgba(255,255,255,0.85);
            margin-bottom: 18px;
            border: 1px solid rgba(255,255,255,0.15);
            backdrop-filter: blur(8px);
        }

        .section-spacing {
            padding: 100px 0;
        }
        .bg-soft {
            background: #f4f6f8;
        }
        .bg-white {
            background: #fff;
        }

        .platform-card {
            border-radius: 24px;
            padding: 36px;
            background: #fff;
            border: 1px solid rgba(13,27,42,0.06);
            box-shadow: 0 4px 24px rgba(13,27,42,0.05);
            height: 100%;
            transition: all .3s;
        }
        .platform-card:hover {
            box-shadow: 0 16px 48px rgba(13,27,42,0.12);
            transform: translateY(-6px);
        }
        .platform-card .pc-icon {
            width: 58px;
            height: 58px;
            border-radius: 18px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 22px;
            background: rgba(0,200,160,0.1);
            color: var(--accent);
        }
        .platform-card h4 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .platform-card p {
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 0;
            line-height: 1.8;
        }

        .step-wrap {
            position: relative;
            padding-left: 72px;
            margin-bottom: 36px;
        }
        .step-wrap::before {
            content: '';
            position: absolute;
            left: 24px;
            top: 60px;
            width: 2px;
            height: calc(100% - 40px);
            background: rgba(0,200,160,0.18);
        }
        .step-wrap:last-of-type::before {
            display: none;
        }
        .step-num {
            position: absolute;
            left: 0;
            top: 0;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--accent), #00a584);
            border-radius: 15px;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 24px rgba(0, 200, 160, 0.3);
        }
        .step-wrap h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .step-wrap p {
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 0;
        }

        .feature-tag {
            display: inline-block;
            background: rgba(0,200,160,0.1);
            color: #0a9a7a;
            font-size: 13px;
            font-weight: 500;
            border-radius: 6px;
            padding: 4px 12px;
            margin: 4px 4px 4px 0;
        }

        .data-card {
            background: var(--primary);
            border-radius: 24px;
            color: #fff;
            padding: 40px 32px;
            border: 1px solid rgba(255,255,255,0.08);
        }
        .data-card .num {
            font-size: clamp(2.8rem, 6vw, 4rem);
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .data-card .label {
            font-size: 16px;
            color: rgba(255,255,255,0.75);
        }
        .data-card .desc {
            font-size: 14px;
            color: rgba(255,255,255,0.55);
            margin-top: 8px;
            line-height: 1.8;
        }

        .dark-section {
            background: var(--primary);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .dark-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0,200,160,0.12) 0%, transparent 70%);
            border-radius: 50%;
        }
        .dark-section .section-title {
            color: #fff;
        }
        .dark-section .section-desc {
            color: rgba(255,255,255,0.65);
        }

        .integration-card {
            background: rgba(255,255,255,0.05);
            border-radius: 20px;
            padding: 28px;
            height: 100%;
            border: 1px solid rgba(255,255,255,0.08);
            transition: all .3s;
        }
        .integration-card:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-4px);
        }
        .integration-card i {
            font-size: 28px;
            color: var(--accent);
            margin-bottom: 16px;
        }
        .integration-card h5 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: #fff;
        }
        .integration-card p {
            font-size: 13px;
            color: rgba(255,255,255,0.55);
            margin-bottom: 0;
            line-height: 1.8;
        }

        .faq-accordion .accordion-item {
            border: 1px solid rgba(13,27,42,0.08);
            border-radius: 16px !important;
            margin-bottom: 16px;
            box-shadow: none;
            background: #fff;
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            background: #fff;
            padding: 22px 28px;
            box-shadow: none;
            border: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(0,200,160,0.05);
            color: var(--accent);
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
        }
        .faq-accordion .accordion-body {
            padding: 0 28px 24px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.9;
        }

        .cta-section {
            padding: 100px 0;
            background: var(--bg-gradient);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -100px;
            left: 20%;
            width: 500px;
            height: 300px;
            background: radial-gradient(circle, rgba(0,200,160,0.15) 0%, transparent 70%);
        }
        .cta-section .section-title {
            color: #fff;
        }
        .cta-section .section-desc {
            color: rgba(255,255,255,0.7);
            margin-left: auto;
            margin-right: auto;
        }

        .dotted-border {
            border: 2px dashed rgba(0,200,160,0.3);
            border-radius: 20px;
            padding: 32px;
            text-align: center;
            transition: all .3s;
        }
        .dotted-border:hover {
            border-color: var(--accent);
            background: rgba(0,200,160,0.04);
        }

        .resource-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            border: 1px solid rgba(13,27,42,0.06);
            box-shadow: 0 4px 20px rgba(13,27,42,0.04);
            transition: all .3s;
        }
        .resource-item:hover {
            box-shadow: 0 8px 32px rgba(13,27,42,0.1);
            transform: translateY(-3px);
        }
        .resource-item i {
            font-size: 22px;
            color: var(--accent);
            background: rgba(0,200,160,0.1);
            border-radius: 12px;
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .resource-item h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .resource-item p {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 0;
            line-height: 1.8;
        }

        @media (max-width: 992px) {
            .section-spacing { padding: 70px 0; }
            .cta-section { padding: 70px 0; }
            .site-header { min-width: 0; width: calc(100% - 32px); }
        }
        @media (max-width: 576px) {
            .section-spacing { padding: 50px 0; }
            .platform-card { padding: 24px; }
            .step-wrap { padding-left: 60px; }
            .step-num { width: 44px; height: 44px; font-size: 16px; border-radius: 12px; }
            .data-card .num { font-size: 2.2rem; }
            .page-banner { padding: 120px 0 70px; }
            .page-banner h1 { font-size: 2rem; }
            .header-cta { display: none; }
        }

/* roulang page: article */
:root {
            --primary: #3b82f6;
            --primary-dark: #1d4ed8;
            --accent: #8b5cf6;
            --ink: #0f172a;
            --bg: #f5f7fb;
            --surface: #ffffff;
            --text: #111827;
            --text-soft: #6b7280;
            --border: #e5e7eb;
            --radius: 20px;
            --radius-sm: 12px;
            --shadow: 0 12px 32px rgba(15, 23, 42, .08);
            --shadow-lg: 0 24px 52px rgba(15, 23, 42, .14);
            --transition: .3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: var(--primary-dark);
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1140px;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding: 56px 0;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 44px;
        }

        .section-label {
            display: inline-block;
            background: rgba(59, 130, 246, .1);
            color: var(--primary-dark);
            border: 1px solid rgba(59, 130, 246, .16);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .5px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: -.5px;
            margin: 0 0 10px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-soft);
            margin: 0;
        }

        /* ========== 浮动 Dock 导航 ========== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1060;
            max-width: 1080px;
            margin: 16px auto 0;
            background: rgba(15, 23, 42, .86);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 999px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 18px 10px 22px;
            gap: 16px;
        }

        .logo {
            flex-shrink: 0;
        }

        .logo a {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            color: #fff;
            font-weight: 800;
            font-size: 14px;
            letter-spacing: .5px;
            padding: 6px 12px;
            border-radius: 12px;
            box-shadow: 0 6px 18px rgba(59, 130, 246, .32);
        }

        .logo-text {
            color: #fff;
            font-size: 21px;
            font-weight: 800;
            letter-spacing: 1px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            color: rgba(255, 255, 255, .66);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 999px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }

        .nav-link.active {
            color: #fff;
            background: rgba(59, 130, 246, .24);
            box-shadow: inset 0 0 0 1px rgba(59, 130, 246, .28);
        }

        .header-cta .btn {
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, .12);
            background: rgba(255, 255, 255, .06);
            color: #fff;
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, .14);
        }

        /* ========== 按钮 ========== */
        .btn {
            border-radius: 12px;
            padding: 10px 22px;
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, #3b82f6, #2563eb);
            box-shadow: 0 8px 22px rgba(37, 99, 235, .25);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            transform: translateY(-2px);
            box-shadow: 0 14px 28px rgba(37, 99, 235, .32);
            color: #fff;
        }

        .btn-light {
            background: #fff;
            color: var(--ink);
            box-shadow: 0 4px 14px rgba(0, 0, 0, .12);
        }

        .btn-light:hover,
        .btn-light:focus {
            background: #f1f5f9;
            color: var(--ink);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, .16);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, .36);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(59, 130, 246, .45);
            outline-offset: 2px;
        }

        /* ========== 文章 Banner ========== */
        .article-hero {
            position: relative;
            padding: 92px 0 70px;
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }

        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(2, 6, 23, .82), rgba(15, 23, 42, .58));
        }

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

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .68);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .82);
            transition: color var(--transition);
        }

        .breadcrumb-nav a:hover {
            color: #fff;
        }

        .breadcrumb-nav i {
            font-size: 11px;
            opacity: .6;
        }

        .article-hero-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(59, 130, 246, .18);
            color: #dbeafe;
            border: 1px solid rgba(59, 130, 246, .28);
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }

        .article-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
        }

        .article-hero h1 {
            font-size: clamp(28px, 4.2vw, 44px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -.5px;
            max-width: 820px;
            margin: 0 0 14px;
        }

        .article-hero-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, .78);
            max-width: 760px;
            margin: 0;
            line-height: 1.8;
        }

        /* ========== 文章主体 ========== */
        .article-main {
            padding: 56px 0 40px;
        }

        .article-card {
            background: var(--surface);
            border-radius: 24px;
            box-shadow: var(--shadow);
            overflow: hidden;
            margin-bottom: 28px;
        }

        .article-cover img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }

        .article-body {
            padding: 28px 34px 12px;
        }

        .article-body h1,
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            margin: 28px 0 14px;
            color: var(--ink);
            font-weight: 700;
            letter-spacing: -.3px;
        }

        .article-body h2 {
            font-size: 24px;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
            border-radius: 2px;
        }

        .article-body h3 {
            font-size: 20px;
        }

        .article-body p {
            font-size: 16px;
            line-height: 1.9;
            color: #334155;
            margin-bottom: 18px;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 18px;
            padding-left: 22px;
            color: #334155;
            line-height: 1.9;
        }

        .article-body li {
            margin-bottom: 6px;
        }

        .article-body img {
            border-radius: 14px;
            margin: 20px 0;
            box-shadow: var(--shadow);
        }

        .article-body blockquote {
            margin: 22px 0;
            padding: 18px 22px;
            background: #f8fafc;
            border-left: 4px solid var(--primary);
            border-radius: 4px;
            color: #475569;
            font-size: 15px;
            line-height: 1.8;
        }

        .article-body a {
            font-weight: 600;
            border-bottom: 1px solid rgba(59, 130, 246, .3);
        }

        .article-body a:hover {
            border-bottom-color: var(--primary);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 18px 34px 28px;
            border-top: 1px solid #f1f5f9;
            margin-top: 10px;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            background: #f1f5f9;
            color: #334155;
            border: 1px solid #e2e8f0;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
        }

        .article-nav-row {
            display: flex;
            gap: 12px;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        .article-nav-row .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        /* ========== 侧边栏 ========== */
        .side-card {
            background: var(--surface);
            border-radius: 20px;
            box-shadow: var(--shadow);
            padding: 24px;
            margin-bottom: 24px;
        }

        .side-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid #eef2f7;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-card h4 i {
            color: var(--primary);
            font-size: 15px;
        }

        .side-meta-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .side-meta-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 9px 0;
            border-bottom: 1px dashed #eef2f7;
            font-size: 14px;
            color: #475569;
        }

        .side-meta-list li:last-child {
            border-bottom: none;
        }

        .side-meta-list i {
            color: var(--primary);
            width: 18px;
            text-align: center;
        }

        .category-entry {
            display: flex;
            gap: 14px;
            align-items: center;
            padding: 13px 14px;
            background: #f8fafc;
            border: 1px solid #eef2f7;
            border-radius: 14px;
            margin-bottom: 10px;
            text-decoration: none;
            color: inherit;
            transition: all var(--transition);
        }

        .category-entry:last-child {
            margin-bottom: 0;
        }

        .category-entry:hover {
            transform: translateY(-2px);
            border-color: #dbeafe;
            background: #f0f7ff;
            box-shadow: 0 10px 24px rgba(59, 130, 246, .1);
            color: inherit;
        }

        .category-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #3b82f6, #1d4ed8);
            color: #fff;
            flex-shrink: 0;
            font-size: 16px;
            box-shadow: 0 6px 16px rgba(59, 130, 246, .24);
        }

        .category-entry strong {
            display: block;
            font-size: 14px;
            color: var(--text);
            font-weight: 600;
        }

        .category-entry small {
            display: block;
            color: #94a3b8;
            font-size: 13px;
            margin-top: 2px;
        }

        .side-cover img {
            border-radius: 14px;
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            margin-bottom: 12px;
        }

        .side-cover p {
            font-size: 14px;
            color: #475569;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding-top: 20px;
        }

        .cta-box {
            background: linear-gradient(120deg, #0f172a, #1e3a8a);
            border-radius: 24px;
            padding: 40px 46px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-box::after {
            content: "";
            position: absolute;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(59, 130, 246, .18);
            right: -70px;
            top: -70px;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(139, 92, 246, .14);
            right: 90px;
            bottom: -50px;
        }

        .cta-box > * {
            position: relative;
            z-index: 1;
        }

        .cta-icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            background: rgba(255, 255, 255, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: #bfdbfe;
            border: 1px solid rgba(255, 255, 255, .12);
        }

        .cta-box h3 {
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 6px;
        }

        .cta-box p {
            font-size: 15px;
            color: rgba(255, 255, 255, .7);
            margin: 0;
        }

        /* ========== FAQ ========== */
        .accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            background: var(--surface);
            border: 1px solid #eef2f7;
            border-radius: 16px;
            margin-bottom: 14px;
            box-shadow: 0 6px 18px rgba(15, 23, 42, .04);
            overflow: hidden;
        }

        .accordion-button {
            background: transparent;
            color: var(--text);
            font-weight: 600;
            font-size: 16px;
            padding: 19px 22px;
            box-shadow: none !important;
            transition: color var(--transition), background var(--transition);
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary-dark);
            background: #f8faff;
        }

        .accordion-button::after {
            background-size: 14px;
            opacity: .55;
        }

        .accordion-body {
            color: #475569;
            line-height: 1.85;
            font-size: 15px;
            padding: 4px 22px 20px;
            border-top: 1px solid #f1f5f9;
        }

        /* ========== 未找到 ========== */
        .not-found-section {
            padding: 100px 0;
        }

        .not-found-card {
            max-width: 560px;
            margin: 0 auto;
            text-align: center;
            background: var(--surface);
            border-radius: 24px;
            box-shadow: var(--shadow);
            padding: 56px 36px;
        }

        .not-found-icon {
            width: 76px;
            height: 76px;
            border-radius: 22px;
            background: #f1f5f9;
            margin: 0 auto 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: var(--primary);
        }

        .not-found-card h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--ink);
            margin: 0 0 12px;
        }

        .not-found-card p {
            color: var(--text-soft);
            margin: 0 0 26px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #e2e8f0;
            padding: 64px 0 0;
            margin-top: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .logo-mark {
            font-size: 13px;
        }

        .footer-brand span:last-child {
            letter-spacing: 1px;
        }

        .site-footer p {
            color: #94a3b8;
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
        }

        .site-footer h5 {
            color: #fff;
            margin: 0 0 18px;
            font-size: 16px;
            font-weight: 600;
        }

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

        .site-footer ul li {
            margin-bottom: 10px;
            color: #94a3b8;
            font-size: 14px;
        }

        .site-footer ul a {
            color: #94a3b8;
            text-decoration: none;
            transition: color var(--transition), padding-left var(--transition);
        }

        .site-footer ul a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .social-icons {
            display: flex;
            gap: 10px;
        }

        .social-icons a {
            display: inline-flex;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            transition: all var(--transition);
        }

        .social-icons a:hover {
            background: var(--primary);
            transform: translateY(-3px);
            color: #fff;
            box-shadow: 0 10px 22px rgba(59, 130, 246, .3);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            margin-top: 44px;
            color: rgba(255, 255, 255, .4);
            font-size: 13px;
            text-align: center;
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, .4);
            font-size: 13px;
            margin: 0;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .article-hero {
                padding: 72px 0 54px;
            }

            .section {
                padding: 46px 0;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                margin: 12px 14px 0;
                border-radius: 22px;
                padding: 10px 14px;
                top: 12px;
            }

            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .main-nav {
                position: absolute;
                top: calc(100% + 12px);
                left: 12px;
                right: 12px;
                background: rgba(15, 23, 42, .96);
                border-radius: 18px;
                padding: 14px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                display: none;
                box-shadow: var(--shadow-lg);
                border: 1px solid rgba(255, 255, 255, .08);
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link {
                padding: 11px 16px;
                border-radius: 12px;
                text-align: center;
            }

            .section-head h2 {
                font-size: 28px;
            }

            .article-hero {
                padding: 64px 0 44px;
            }

            .article-hero h1 {
                font-size: 28px;
            }

            .article-body {
                padding: 22px 22px 8px;
            }

            .article-tags {
                padding: 16px 22px 22px;
            }

            .article-main {
                padding: 40px 0 30px;
            }

            .cta-box {
                padding: 30px 26px;
                text-align: center;
                justify-content: center;
            }

            .cta-box .btn {
                margin-top: 4px;
            }

            .site-footer {
                padding-top: 48px;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header {
                border-radius: 18px;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-mark {
                font-size: 12px;
                padding: 5px 10px;
            }

            .article-hero {
                padding: 52px 0 38px;
            }

            .article-hero-meta {
                gap: 10px;
            }

            .article-hero h1 {
                font-size: 24px;
            }

            .article-hero-desc {
                font-size: 15px;
            }

            .article-card {
                border-radius: 18px;
            }

            .article-body h2 {
                font-size: 21px;
            }

            .article-body p {
                font-size: 15px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .cta-box h3 {
                font-size: 20px;
            }

            .accordion-button {
                font-size: 14px;
                padding: 16px 16px;
            }

            .accordion-body {
                font-size: 14px;
                padding: 0 16px 16px;
            }

            .footer-brand {
                font-size: 19px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1a2b4a;
            --primary-dark: #0f1e3c;
            --primary-light: #2a3f63;
            --accent: #f0b90b;
            --accent-hover: #d4a308;
            --bg-light: #f5f7fa;
            --bg-dark: #0d1526;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --card-radius: 16px;
            --btn-radius: 10px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.25s ease;
            --transition-slow: 0.4s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-light);
            color: var(--text-main);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ 浮动 Dock 导航 ============ */
        .site-header {
            position: fixed;
            top: 18px;
            left: 0;
            right: 0;
            z-index: 999;
            display: flex;
            justify-content: center;
            padding: 0 20px;
            pointer-events: none;
        }
        .site-header .logo,
        .site-header .main-nav,
        .site-header .header-cta,
        .site-header .nav-toggle {
            pointer-events: auto;
        }
        .site-header {
            background: transparent;
        }
        .site-header::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: min(1120px, 94%);
            height: 100%;
            background: rgba(255, 255, 255, 0.86);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: 60px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            z-index: -1;
            pointer-events: none;
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: min(1120px, 94%);
            padding: 10px 20px;
            border-radius: 60px;
            position: relative;
        }
        .site-header .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .site-header .logo a {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 10px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            font-weight: 800;
            font-size: 15px;
            letter-spacing: 0.5px;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 255, 255, 0.4);
            border-radius: 40px;
            padding: 4px 6px;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            transition: all 0.25s ease;
        }
        .nav-link:hover {
            background: rgba(26, 43, 74, 0.08);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(26, 43, 74, 0.25);
        }
        .header-cta .btn-light {
            background: var(--accent);
            border: none;
            color: var(--primary-dark);
            font-weight: 700;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 14px;
            transition: all 0.25s ease;
        }
        .header-cta .btn-light:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(240, 185, 11, 0.35);
            color: var(--primary-dark);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 20px;
            color: var(--primary);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
        }
        .nav-toggle:hover {
            background: rgba(26, 43, 74, 0.08);
        }

        /* 响应式导航 */
        @media (max-width: 991px) {
            .site-header {
                top: 12px;
                padding: 0 12px;
            }
            .site-header::before,
            .site-header .header-inner {
                width: 100%;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: calc(100% + 10px);
                left: 50%;
                transform: translateX(-50%);
                width: 94%;
                background: #fff;
                border-radius: 20px;
                box-shadow: var(--shadow-lg);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 18px;
                text-align: center;
                border-radius: 12px;
            }
            .nav-toggle {
                display: block;
            }
            .header-cta .btn-light {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .site-header .header-inner {
                padding: 8px 14px;
            }
            .logo-mark {
                min-width: 32px;
                height: 32px;
                font-size: 13px;
                border-radius: 10px;
            }
            .logo-text {
                font-size: 18px;
            }
        }

        /* ============ Hero 区域 ============ */
        .page-hero {
            position: relative;
            padding: 180px 0 100px;
            background: linear-gradient(135deg, rgba(13, 21, 38, 0.92), rgba(26, 43, 74, 0.82)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-light), transparent);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(240, 185, 11, 0.15);
            border: 1px solid rgba(240, 185, 11, 0.4);
            border-radius: 30px;
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 20px;
        }
        .page-hero h1 {
            font-size: 52px;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .page-hero p.lead {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin: 0 auto 32px;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 40px;
        }
        .hero-stats .stat {
            text-align: center;
            padding: 0 10px;
        }
        .hero-stats .stat .num {
            font-size: 34px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stats .stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }
        @media (max-width: 767px) {
            .page-hero {
                padding: 140px 0 70px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero p.lead {
                font-size: 15px;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stats .stat .num {
                font-size: 24px;
            }
        }

        /* ============ 通用板块 ============ */
        .section-padding {
            padding: 90px 0;
        }
        .section-padding-sm {
            padding: 60px 0;
        }
        .section-title-wrap {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 50px;
        }
        .section-title-wrap h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title-wrap p {
            color: var(--text-muted);
            font-size: 16px;
        }
        .section-title-wrap .sub-badge {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(240, 185, 11, 0.12);
            color: #b8960a;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        /* ============ 赛事分类标签 ============ */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 44px;
        }
        .category-tabs .tab-item {
            padding: 10px 22px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            border: 1.5px solid var(--border-color);
            background: #fff;
            color: var(--text-main);
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .category-tabs .tab-item:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .category-tabs .tab-item.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(26, 43, 74, 0.25);
        }

        /* ============ 赛事卡片 ============ */
        .event-card {
            background: #fff;
            border-radius: var(--card-radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(26, 43, 74, 0.15);
        }
        .event-card .card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .event-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .event-card:hover .card-img img {
            transform: scale(1.04);
        }
        .event-card .card-img .badge-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }
        .event-card .card-img .badge-live {
            position: absolute;
            top: 14px;
            right: 14px;
            background: #ef4444;
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            gap: 4px;
            box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
        }
        .event-card .card-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .event-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .event-card .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            flex: 1;
            margin-bottom: 16px;
        }
        .event-card .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid #f1f5f9;
            padding-top: 14px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .event-card .card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .event-card .card-meta .meta-item i {
            color: var(--accent);
            font-size: 14px;
        }
        .btn-primary {
            background: var(--primary);
            border: none;
            color: #fff;
            padding: 10px 24px;
            font-weight: 600;
            border-radius: var(--btn-radius);
            transition: all 0.25s ease;
            display: inline-block;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(26, 43, 74, 0.3);
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--border-color);
            color: var(--text-main);
            padding: 10px 24px;
            font-weight: 600;
            border-radius: var(--btn-radius);
            transition: all 0.25s ease;
            display: inline-block;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(26, 43, 74, 0.04);
        }
        .btn-accent {
            background: var(--accent);
            border: 1px solid var(--accent);
            color: var(--primary-dark);
            padding: 10px 24px;
            font-weight: 700;
            border-radius: var(--btn-radius);
            transition: all 0.25s ease;
            display: inline-block;
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(240, 185, 11, 0.4);
        }

        /* ============ 数据统计区 ============ */
        .data-section {
            background: var(--primary-dark);
            color: #fff;
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }
        .data-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .data-section .container {
            position: relative;
            z-index: 2;
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .data-item {
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--card-radius);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.3s ease;
        }
        .data-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .data-item .icon {
            font-size: 30px;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .data-item .num {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.2;
        }
        .data-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 6px;
        }
        @media (max-width: 991px) {
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .data-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ 赛程时间线 ============ */
        .schedule-section {
            background: #fff;
        }
        .schedule-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .schedule-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            border-radius: 14px;
            margin-bottom: 14px;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }
        .schedule-item:hover {
            border-color: rgba(26, 43, 74, 0.2);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .schedule-item .date-box {
            min-width: 64px;
            text-align: center;
            padding: 8px 12px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
        }
        .schedule-item .date-box .day {
            font-size: 24px;
            font-weight: 800;
            line-height: 1;
        }
        .schedule-item .date-box .month {
            font-size: 12px;
            opacity: 0.8;
            margin-top: 2px;
        }
        .schedule-item .match-info {
            flex: 1;
        }
        .schedule-item .match-info .match-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
        }
        .schedule-item .match-info .match-detail {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .schedule-item .match-status {
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 600;
            border-radius: 20px;
            background: rgba(240, 185, 11, 0.15);
            color: #a08500;
        }
        @media (max-width: 575px) {
            .schedule-item {
                flex-wrap: wrap;
                gap: 12px;
            }
            .schedule-item .date-box {
                min-width: 50px;
            }
            .schedule-item .date-box .day {
                font-size: 20px;
            }
        }

        /* ============ 资讯列表 ============ */
        .news-card {
            background: #fff;
            border-radius: var(--card-radius);
            border: 1px solid var(--border-color);
            padding: 24px;
            transition: all 0.3s ease;
            height: 100%;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(26, 43, 74, 0.15);
            transform: translateY(-4px);
        }
        .news-card .news-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(240, 185, 11, 0.1);
            padding: 3px 10px;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .news-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .news-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .news-card .news-meta {
            font-size: 13px;
            color: #94a3b8;
            display: flex;
            gap: 16px;
        }
        .news-card .news-meta i {
            margin-right: 4px;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg-light);
        }
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            transition: color 0.25s ease;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(240, 185, 11, 0.12);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 22px 18px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ============ CTA ============ */
        .cta-section {
            position: relative;
            padding: 70px 0;
            background: var(--primary);
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-accent {
            padding: 14px 40px;
            font-size: 16px;
            border-radius: 40px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #0d1526;
            color: #94a3b8;
            padding: 70px 0 0;
            margin-top: 0;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand .logo-mark {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
            font-size: 14px;
        }
        .site-footer ul li a {
            color: #94a3b8;
            transition: all 0.25s ease;
        }
        .site-footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .site-footer .social-icons {
            display: flex;
            gap: 12px;
            margin-bottom: 16px;
        }
        .site-footer .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #94a3b8;
            font-size: 16px;
            transition: all 0.3s ease;
        }
        .site-footer .social-icons a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 50px;
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
        }
        .site-footer .footer-bottom p {
            margin-bottom: 0;
            opacity: 0.5;
        }

        /* ============ 通用响wu式 ============ */
        @media (max-width: 991px) {
            .section-padding {
                padding: 60px 0;
            }
            .section-title-wrap h2 {
                font-size: 28px;
            }
        }
        @media (max-width: 575px) {
            .container {
                padding: 0 16px;
            }
            .section-title-wrap h2 {
                font-size: 24px;
            }
            .event-card .card-body {
                padding: 16px;
            }
            .category-tabs .tab-item {
                padding: 8px 16px;
                font-size: 13px;
            }
        }

        /* Bootstrap 重写 */
        .btn-check:focus+.btn,
        .btn:focus {
            box-shadow: 0 0 0 0.25rem rgba(240, 185, 11, 0.3);
        }
        .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 0.25rem rgba(240, 185, 11, 0.12);
        }

        /* 滚动显示动画 */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category3 */
:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #0ea5e9;
  --accent-secondary: #14b8a6;
  --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
  --bg-body: #f8fafc;
  --bg-white: #ffffff;
  --bg-muted: #f1f5f9;
  --bg-dark: #0b1120;
  --text-main: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 48px rgba(15, 23, 42, 0.10);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --spacing-section: 96px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--bg-body);
  color: var(--text-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; }

.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; margin: 0 auto; }

/* DOCK 导航 */
.site-header {
  position: sticky;
  top: 20px;
  z-index: 1000;
  padding: 0 24px;
  margin-top: 16px;
}

.site-header .nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 60px;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06), 0 1px 0 rgba(255,255,255,0.8) inset;
}

.logo { display: flex; align-items: center; gap: 8px; }

.logo a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  color: #fff;
  font-weight: 800;
  padding: 6px 12px;
  border-radius: 30px;
  font-size: 16px;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 10px rgba(14, 165, 233, 0.3);
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
}

.main-nav { display: flex; align-items: center; gap: 4px; }

.main-nav a {
  padding: 8px 18px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  transition: var(--transition);
}

.main-nav a:hover {
  color: var(--primary);
  background: var(--bg-muted);
}

.main-nav a.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
}

.header-cta .btn {
  border-radius: 40px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 600;
}

.btn-light {
  background: var(--primary);
  color: #fff;
  border: none;
}

.btn-light:hover {
  background: #1e293b;
  color: #fff;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-muted);
  color: var(--text-main);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.nav-toggle:hover { background: var(--border-color); }

/* HERO */
.page-hero {
  position: relative;
  padding: 120px 0 100px;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.72)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.25) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border-radius: 40px;
  padding: 6px 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
}

.hero-badge i { color: var(--accent); }

.page-hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  max-width: 720px;
}

.page-hero h1 span {
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-hero .hero-lead {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 560px;
  margin-bottom: 28px;
  line-height: 1.8;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-actions .btn {
  border-radius: 40px;
  padding: 10px 24px;
  font-weight: 600;
}

.btn-accent {
  background: var(--accent-gradient);
  color: #fff;
  border: none;
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.4);
  color: #fff;
}

.btn-outline-light {
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  background: transparent;
  border-radius: 40px;
  padding: 10px 24px;
  font-weight: 600;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

/* 面包屑 */
.breadcrumb-bar {
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

.breadcrumb-custom {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}

.breadcrumb-custom a { color: var(--text-muted); }
.breadcrumb-custom a:hover { color: var(--primary); }
.breadcrumb-custom i { font-size: 10px; color: #cbd5e1; }

/* 板块通用 */
.section { padding: var(--spacing-section) 0; }
.section-alt { background: var(--bg-white); position: relative; }

.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head .section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(14, 165, 233, 0.08);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-head p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* 核心技巧卡片 */
.tech-grid .card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  height: 100%;
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.tech-grid .card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(14, 165, 233, 0.35);
}

.tech-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #fff;
  margin-bottom: 20px;
  background: var(--accent-gradient);
  box-shadow: 0 8px 16px rgba(14, 165, 233, 0.20);
}

.tech-icon i { color: #fff; }

.icon-purple { background: linear-gradient(135deg, #8b5cf6, #6366f1); box-shadow: 0 8px 16px rgba(99, 102, 241, 0.2); }
.icon-teal { background: linear-gradient(135deg, #14b8a6, #0ea5e9); box-shadow: 0 8px 16px rgba(20, 184, 166, 0.2); }
.icon-amber { background: linear-gradient(135deg, #f59e0b, #f97316); box-shadow: 0 8px 16px rgba(245, 158, 11, 0.2); }

.tech-grid .card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.tech-grid .card p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.tech-grid .card ul { padding: 0; }
.tech-grid .card ul li {
  font-size: 13px;
  color: var(--text-body);
  padding-left: 20px;
  position: relative;
}

.tech-grid .card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* 时间线/流程 */
.style-steps {
  position: relative;
  padding: 24px 0 8px;
}

.style-step {
  position: relative;
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
}

.step-num {
  flex: 0 0 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 20px;
  box-shadow: 0 8px 20px rgba(14, 165, 233, 0.25);
}

.style-step:nth-child(2) .step-num,
.style-step:nth-child(6) .step-num { background: linear-gradient(135deg, #8b5cf6, #6366f1); box-shadow: 0 8px 20px rgba(99, 102, 241, 0.25); }
.style-step:nth-child(3) .step-num,
.style-step:nth-child(7) .step-num { background: linear-gradient(135deg, #14b8a6, #0ea5e9); box-shadow: 0 8px 20px rgba(20, 184, 166, 0.25); }
.style-step:nth-child(4) .step-num { background: linear-gradient(135deg, #f59e0b, #f97316); box-shadow: 0 8px 20px rgba(245, 158, 11, 0.25); }
.style-step:nth-child(5) .step-num { background: linear-gradient(135deg, #0f172a, #334155); box-shadow: 0 8px 20px rgba(15, 23, 42, 0.25); }

.style-step .step-content {
  flex: 1;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.style-step .step-content:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.style-step .step-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.style-step .step-content p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}

/* 内容列表卡片 */
.content-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(14, 165, 233, 0.3);
}

.content-card .card-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.content-card .card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.card-cover .badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
  color: #fff;
  padding: 4px 14px;
  border-radius: 30px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.content-card .card-body {
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.content-card .card-meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.content-card .card-meta i { margin-right: 4px; color: var(--accent); }

.content-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.4;
  margin-bottom: 8px;
  transition: var(--transition);
}

.content-card h3 a { color: inherit; }
.content-card h3 a:hover { color: var(--accent); }

.content-card .card-text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}

.card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-link i { font-size: 12px; transition: transform 0.3s; }
.card-link:hover i { transform: translateX(4px); }

/* 对比表格 */
.compare-section { background: var(--bg-white); }

.compare-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
}

.compare-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }

.compare-card .compare-icon {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
  background: var(--bg-muted);
  color: var(--primary);
}

.compare-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.compare-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }

.feature-list { padding: 0; margin: 0; }

.feature-list li {
  font-size: 14px;
  color: var(--text-body);
  padding: 8px 0;
  border-bottom: 1px dashed #eef2f7;
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature-list li:last-child { border-bottom: none; }

.feature-list i.fa-circle-check { color: var(--accent-secondary); font-size: 14px; }

/* FAQ */
.faq-wrapper {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover { border-color: rgba(14, 165, 233, 0.3); box-shadow: var(--shadow-sm); }

.faq-question {
  width: 100%;
  text-align: left;
  padding: 22px 26px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-question i {
  font-size: 14px;
  color: var(--accent);
  transition: transform 0.3s;
}

.faq-item.active .faq-question i { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 26px 22px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 0px solid var(--border-color);
}

.faq-item.active .faq-answer { max-height: 400px; border-top: 1px solid var(--border-color); }
.faq-item.active .faq-answer-inner { padding-top: 16px; }

/* CTA */
.cta-section {
  position: relative;
  padding: 100px 0;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.93), rgba(15, 23, 42, 0.75)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-radius: 32px;
  margin: 32px 0 96px;
  overflow: hidden;
  color: #fff;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(14, 165, 233, 0.8), transparent);
}

.cta-section h2 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section .btn {
  padding: 12px 32px;
  font-size: 16px;
  border-radius: 40px;
  margin: 0 6px;
}

/* FOOTER */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 72px 0 0;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.site-footer .footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.site-footer .footer-brand .logo-mark {
  background: var(--accent-gradient);
  padding: 6px 14px;
  border-radius: 30px;
  color: #fff;
  font-weight: 800;
}

.site-footer .footer-brand span:last-child {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
}

.site-footer p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
}

.site-footer h5 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

.site-footer ul { padding: 0; }

.site-footer ul li {
  font-size: 14px;
  padding: 6px 0;
  color: rgba(255, 255, 255, 0.6);
}

.site-footer ul li a {
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

.site-footer ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.social-icons {
  display: flex;
  gap: 12px;
  padding: 0;
}

.social-icons a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.65);
  transition: var(--transition);
}

.social-icons a:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  margin-top: 56px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  margin: 0;
  color: rgba(255, 255, 255, 0.35);
}

/* 响应式 */
@media (max-width: 1024px) {
  .page-hero h1 { font-size: 42px; }
  .section { --spacing-section: 72px; }
}

@media (max-width: 768px) {
  .site-header { top: 0; padding: 0 12px; margin-top: 8px; }

  .main-nav {
    display: flex;
    position: absolute;
    top: 70px;
    left: 12px;
    right: 12px;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-radius: 20px;
    padding: 16px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.15);
    border: 1px solid var(--border-color);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: var(--transition);
  }

  .main-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .main-nav a {
    padding: 14px 20px;
    border-radius: 14px;
    text-align: center;
    color: var(--text-main);
  }

  .main-nav a.active { background: var(--primary); color: #fff; }

  .header-cta { display: none; }
  .nav-toggle { display: flex; }

  .page-hero { padding: 80px 0 72px; }
  .page-hero h1 { font-size: 34px; }
  .page-hero .hero-lead { font-size: 15px; }

  .section-head h2 { font-size: 28px; }

  .tech-grid .card { padding: 18px; }

  .cta-section { border-radius: 20px; padding: 64px 20px; }
  .cta-section h2 { font-size: 26px; }

  .footer-bottom { margin-top: 40px; }
}

@media (max-width: 520px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .page-hero h1 { font-size: 28px; letter-spacing: -0.01em; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; }
  .section { --spacing-section: 56px; }
  .section-head { margin-bottom: 36px; }

  .style-step { gap: 14px; }
  .step-num { flex-basis: 48px; width: 48px; height: 48px; font-size: 16px; }

  .faq-question { padding: 18px 18px; font-size: 15px; }
  .faq-answer-inner { padding: 0 18px 18px; }
}