/* roulang page: index */
:root {
            --primary: #1e3a5f;
            --primary-dark: #142a45;
            --primary-light: #2b4d7a;
            --accent: #f0a500;
            --accent-hover: #d99400;
            --accent-light: #fff3d6;
            --bg: #f5f7fb;
            --card: #ffffff;
            --text: #1e2d3d;
            --text-light: #64748b;
            --border: #e8ecf3;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(30, 58, 95, 0.06);
            --shadow-lg: 0 12px 40px rgba(30, 58, 95, 0.12);
            --transition: all 0.3s ease;
            --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--card);
        }
        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }
        .section-header .tagline {
            display: inline-block;
            background: var(--accent-light);
            color: #c47a00;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 100px;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .section-header p {
            color: var(--text-light);
            font-size: 16px;
            line-height: 1.8;
        }
        .section-header.light h2 {
            color: #fff;
        }
        .section-header.light p {
            color: rgba(255, 255, 255, 0.8);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: 100px;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(240, 165, 0, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 6px 22px rgba(240, 165, 0, 0.45);
            transform: translateY(-2px);
        }
        .btn-outline {
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .btn-dark {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(30, 58, 95, 0.28);
        }
        .btn-dark:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(30, 58, 95, 0.35);
        }
        .badge {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            background: var(--accent-light);
            color: #b36f00;
            letter-spacing: 0.5px;
        }
        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary-dark);
            white-space: nowrap;
        }
        .logo .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 800;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
            background: #f0f4fa;
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .nav-cta {
            margin-left: 12px;
        }
        .nav-cta .btn {
            padding: 8px 22px;
            font-size: 14px;
        }
        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            background: #f0f4fa;
            color: var(--primary);
            font-size: 22px;
        }
        @keyframes mobileMenuIn {
            from {
                opacity: 0;
                transform: translateY(-12px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @media (max-width: 900px) {
            .mobile-toggle {
                display: flex;
            }
            .main-nav {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
                gap: 4px;
                display: none;
            }
            .main-nav.open {
                display: flex;
                animation: mobileMenuIn 0.25s ease;
            }
            .nav-link {
                padding: 12px 18px;
                border-radius: 10px;
            }
            .nav-cta {
                margin: 10px 0 0;
            }
            .nav-cta .btn {
                width: 100%;
                justify-content: center;
            }
        }
        /* Hero */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            padding: 120px 0 80px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(16, 30, 61, 0.88) 20%, rgba(20, 42, 69, 0.72) 55%, rgba(20, 42, 69, 0.4) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding-bottom: 40px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 13px;
            border-radius: 100px;
            padding: 6px 16px;
            margin-bottom: 20px;
            backdrop-filter: blur(6px);
        }
        .hero-tag i {
            width: 8px;
            height: 8px;
            background: #4ade80;
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.2);
        }
        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero-desc {
            color: rgba(255, 255, 255, 0.85);
            font-size: 17px;
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 540px;
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 30px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: rgba(255, 255, 255, 0.8);
            font-size: 13px;
            padding: 6px 14px;
            border-radius: 100px;
            backdrop-filter: blur(4px);
        }
        .hero-tags span i {
            color: var(--accent);
            font-style: normal;
        }
        /* 状态条 */
        .status-bar {
            background: var(--primary);
            padding: 28px 0;
            position: relative;
            z-index: 3;
            margin-top: 0;
        }
        .status-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .status-item {
            text-align: center;
            color: #fff;
        }
        .status-item .num {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
        }
        .status-item .label {
            font-size: 13px;
            opacity: 0.7;
            margin-top: 4px;
        }
        .status-item .dot {
            width: 10px;
            height: 10px;
            background: #4ade80;
            border-radius: 50%;
            display: inline-block;
            margin-right: 6px;
            box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.15);
        }
        /* 核心服务 */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 28px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .feature-card .card-img {
            border-radius: 12px;
            overflow: hidden;
            height: 200px;
            position: relative;
        }
        .feature-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .feature-card:hover .card-img img {
            transform: scale(1.04);
        }
        .feature-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #c47a00;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.7;
            flex: 1;
        }
        /* 分类入口 */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .cat-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            background: #fff;
            transition: var(--transition);
            display: block;
        }
        .cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .cat-card .cat-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .cat-card .cat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .cat-card:hover .cat-img img {
            transform: scale(1.05);
        }
        .cat-card .cat-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, transparent 30%, rgba(14, 26, 48, 0.5));
        }
        .cat-card .cat-body {
            padding: 22px 24px 24px;
            position: relative;
        }
        .cat-card .cat-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }
        .cat-card .cat-body p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.6;
        }
        .cat-card .cat-link {
            color: var(--accent-hover);
            font-size: 14px;
            font-weight: 600;
            display: inline-block;
            margin-top: 14px;
        }
        /* 新闻列表 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .news-card {
            display: block;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 24px;
            transition: var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .news-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
        }
        .news-card .badge {
            font-size: 11px;
        }
        .news-date {
            font-size: 13px;
            color: var(--text-light);
        }
        .news-card h3 {
            font-size: 17px;
            font-weight: 650;
            color: var(--primary-dark);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .news-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .empty-tip {
            grid-column: 1 / -1;
            text-align: center;
            padding: 40px;
            color: var(--text-light);
            background: var(--card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        /* 流程 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-item {
            text-align: center;
            position: relative;
            background: var(--card);
            border-radius: var(--radius);
            padding: 32px 20px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 6px 18px rgba(30, 58, 95, 0.2);
        }
        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }
        /* 图文区 */
        .split-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .split-img {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .split-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .split-content .list-item {
            display: flex;
            gap: 14px;
            margin-bottom: 20px;
        }
        .split-content .list-item .ck {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-light);
            color: #b36f00;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            font-weight: 700;
            margin-top: 2px;
        }
        .split-content .list-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }
        .split-content .list-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        /* FAQ */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item summary {
            cursor: pointer;
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            color: var(--accent-hover);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }
        .faq-item summary:hover {
            background: #fafbfd;
        }
        .faq-item .faq-body {
            padding: 0 24px 20px;
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.8;
        }
        /* CTA */
        .cta-section {
            position: relative;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            padding: 90px 0;
            text-align: center;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(rgba(16, 30, 61, 0.85), rgba(16, 30, 61, 0.9));
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 620px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        /* 页脚 */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.65);
            padding: 60px 0 30px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 50px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            padding: 6px 0;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding-top: 30px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }
        /* 移动端 */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid,
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 767px) {
            .section {
                padding: 60px 0;
            }
            .hero {
                padding: 100px 0 60px;
            }
            .hero h1 {
                font-size: 34px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .status-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .feature-grid,
            .cat-grid,
            .news-grid,
            .split-section {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .step-item {
                padding: 22px 14px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .cta-inner h2 {
                font-size: 28px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-btns {
                flex-direction: column;
            }
            .hero-btns .btn {
                width: 100%;
            }
            .step-item {
                padding: 16px 10px;
            }
            .step-num {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .logo {
                font-size: 17px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #e84c3d;
            --primary-dark: #d13a2c;
            --primary-light: #fff0ee;
            --secondary: #f5a623;
            --secondary-light: #fff8eb;
            --bg: #f7f8fa;
            --bg-deep: #1a1d29;
            --text: #23263b;
            --text-light: #6b7088;
            --border: #e8eaf0;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.07);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.05);
            --transition: all 0.3s ease;
            --container: 1200px;
        }

        *,
        *::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', sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            border: none;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .bg-deep-section {
            background: var(--bg-deep);
            color: #f2f3f7;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text);
            white-space: nowrap;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.15rem;
            box-shadow: 0 4px 14px rgba(232, 76, 61, 0.35);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta .btn {
            margin-left: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            border: 2px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 6px 20px rgba(232, 76, 61, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(232, 76, 61, 0.4);
        }

        .btn-outline {
            border-color: var(--border);
            color: var(--text);
            background: #fff;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }

        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
        }

        .btn:focus-visible,
        .nav-link:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(232, 76, 61, 0.35);
            outline-offset: 2px;
        }

        .header-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text);
            padding: 8px;
        }

        @media (max-width: 992px) {
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
                border-radius: 0 0 16px 16px;
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 999;
                gap: 4px;
            }

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

            .nav-link {
                padding: 14px 16px;
                font-size: 1rem;
                text-align: left;
                display: block;
            }

            .nav-cta {
                margin-top: 12px;
                text-align: center;
            }

            .nav-cta .btn {
                width: 100%;
                margin-left: 0;
            }

            .header-toggle {
                display: block;
            }
        }

        /* ===== 页面Banner ===== */
        .page-banner {
            position: relative;
            padding: 96px 0 72px;
            background: linear-gradient(135deg, #1a1d29 0%, #2d2035 50%, #3a1e2a 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            overflow: hidden;
            text-align: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 29, 41, 0.72);
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
            margin: 0 auto;
        }

        .page-banner .badge-banner {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #ffd9d4;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            letter-spacing: 1.5px;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .page-banner p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .breadcrumb-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            margin-bottom: 12px;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.7);
        }

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

        @media (max-width: 768px) {
            .page-banner {
                padding: 64px 0 48px;
            }

            .page-banner h1 {
                font-size: 1.9rem;
            }

            .page-banner p {
                font-size: 1rem;
            }
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 80px 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 12px;
        }

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

        @media (max-width: 768px) {
            .section-block {
                padding: 56px 0;
            }

            .section-head h2 {
                font-size: 1.6rem;
            }
        }

        /* ===== 登录方式卡片 ===== */
        .login-methods-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .method-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
            position: relative;
        }

        .method-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }

        .method-card .method-icon {
            width: 72px;
            height: 72px;
            border-radius: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
        }

        .method-card:nth-child(1) .method-icon {
            background: var(--primary-light);
            color: var(--primary);
        }

        .method-card:nth-child(2) .method-icon {
            background: var(--secondary-light);
            color: #d18f00;
        }

        .method-card:nth-child(3) .method-icon {
            background: #eef5ee;
            color: #3a9b4e;
        }

        .method-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .method-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        .method-card .tag-mini {
            display: inline-block;
            margin-top: 14px;
            font-size: 0.78rem;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 600;
        }

        @media (max-width: 992px) {
            .login-methods-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 600px) {
            .login-methods-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 登录流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            background: #fff;
            border-radius: var(--radius);
            padding: 36px 24px 28px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }

        .step-item .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            margin: 0 auto 16px;
            position: relative;
            z-index: 1;
        }

        .step-item .step-num::before {
            counter-increment: step;
            content: counter(step);
        }

        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        /* ===== 安全提示 ===== */
        .safety-block {
            background: var(--bg-deep);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: #f2f3f7;
            border-radius: 24px;
            padding: 56px 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .safety-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 29, 41, 0.72);
        }

        .safety-block>* {
            position: relative;
            z-index: 1;
        }

        .safety-info h2 {
            font-size: 1.7rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .safety-info>p {
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 16px;
            line-height: 1.9;
        }

        .safety-points {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .safety-point {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            padding: 18px 20px;
            transition: var(--transition);
        }

        .safety-point:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .safety-point i {
            font-size: 1.2rem;
            color: var(--secondary);
            margin-top: 4px;
        }

        .safety-point strong {
            display: block;
            font-size: 0.98rem;
            margin-bottom: 4px;
        }

        .safety-point p {
            font-size: 0.86rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.6;
        }

        @media (max-width: 992px) {
            .safety-block {
                grid-template-columns: 1fr;
                padding: 40px 28px;
                gap: 32px;
            }

            .safety-info h2 {
                font-size: 1.4rem;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 20px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .stat-num {
            font-size: 2.3rem;
            font-weight: 800;
            color: var(--primary);
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 8px;
        }

        @media (max-width: 992px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        /* ===== 图片图文区块 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .feature-image {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
        }

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

        .feature-image:hover img {
            transform: scale(1.03);
        }

        .feature-content h2 {
            font-size: 1.7rem;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 16px;
        }

        .feature-content p {
            color: var(--text-light);
            margin-bottom: 16px;
            line-height: 1.85;
        }

        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 24px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
        }

        .feature-list i {
            color: var(--primary);
            margin-top: 4px;
            font-size: 0.9rem;
        }

        @media (max-width: 992px) {
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .feature-content h2 {
                font-size: 1.4rem;
            }
        }

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

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 26px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }

        .faq-q i {
            color: var(--primary);
            transition: transform 0.3s ease;
            font-size: 0.9rem;
        }

        .faq-item.open .faq-q i {
            transform: rotate(45deg);
        }

        .faq-a {
            display: none;
            padding: 0 26px 22px;
            color: var(--text-light);
            font-size: 0.93rem;
            line-height: 1.85;
        }

        .faq-item.open .faq-a {
            display: block;
        }

        @media (max-width: 600px) {
            .faq-q {
                padding: 18px 18px;
                font-size: 0.95rem;
            }

            .faq-a {
                padding: 0 18px 18px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, #b52a1e 100%);
            border-radius: 28px;
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20px;
            width: 140px;
            height: 140px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 1.9rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            font-size: 1.02rem;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            color: #a0a4b8;
            padding: 64px 0 0;
            margin-top: 40px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 320px;
            margin-top: 10px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-col a {
            display: block;
            color: #a0a4b8;
            font-size: 0.9rem;
            padding: 6px 0;
            transition: var(--transition);
        }

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

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.85rem;
            color: #767b8b;
        }

        @media (max-width: 992px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* ===== 安全提示条 ===== */
        .tip-strip {
            background: var(--secondary-light);
            border: 1px solid #f0deb9;
            color: #8a6a00;
            border-radius: 14px;
            padding: 16px 24px;
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.92rem;
            margin-bottom: 32px;
        }

        .tip-strip i {
            font-size: 1.1rem;
            color: #d18f00;
        }

        /* ===== 登录资源卡 ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .resource-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .resource-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }

        .resource-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

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

        .resource-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(0, 0, 0, 0.45));
            pointer-events: none;
        }

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

        .resource-card .card-body .card-badge {
            display: inline-block;
            align-self: flex-start;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.78rem;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .resource-card .card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .resource-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
        }

        .resource-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 16px;
        }

        .resource-card .card-link:hover {
            gap: 12px;
        }

        @media (max-width: 992px) {
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 600px) {
            .resource-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 倒计时条 */
        .live-strip {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 40px;
            padding: 6px 18px 6px 10px;
            font-size: 0.85rem;
            color: #fff;
        }

        .live-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #46e08a;
            box-shadow: 0 0 0 4px rgba(70, 224, 138, 0.2);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 4px rgba(70, 224, 138, 0.2);
            }

            50% {
                opacity: 0.7;
                box-shadow: 0 0 0 8px rgba(70, 224, 138, 0.1);
            }
        }

/* roulang page: article */
:root {
            --primary: #0d1b34;
            --primary-light: #16294d;
            --accent: #f0b90b;
            --accent-hover: #d4a50a;
            --blue: #2f6bff;
            --white: #ffffff;
            --bg: #f5f6fb;
            --text: #1a1a2e;
            --text-weak: #6b7280;
            --border: #e5e7ed;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.10);
            --container: 1200px;
        }

        * {
            margin: 0;
            padding: 0;
            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;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 27, 52, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--white);
            letter-spacing: 0.5px;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent), #ff8a00);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(240, 185, 11, 0.35);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            display: block;
            color: rgba(255, 255, 255, 0.78);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 8px;
            position: relative;
        }

        .nav-link:hover {
            color: var(--white);
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-link.active {
            color: var(--white);
            background: rgba(240, 185, 11, 0.12);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-cta {
            margin-left: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 4px 14px rgba(240, 185, 11, 0.35);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(240, 185, 11, 0.45);
        }

        .btn-outline {
            background: transparent;
            color: var(--white);
            border: 1.5px solid rgba(255, 255, 255, 0.4);
        }

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

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--white);
            margin: 5px 0;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        /* ---------- Article Hero ---------- */
        .article-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 80px 0 60px;
            color: var(--white);
        }

        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 52, 0.93) 0%, rgba(13, 27, 52, 0.78) 100%);
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(240, 185, 11, 0.15);
            color: var(--accent);
            border: 1px solid rgba(240, 185, 11, 0.3);
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .article-hero h1 {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 800;
            margin-bottom: 16px;
            max-width: 860px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
        }

        .status-bar {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 6px 16px;
            margin-top: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(4px);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22c55e;
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        /* ---------- Article Section ---------- */
        .article-section {
            padding: 60px 0;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 36px;
            align-items: start;
        }

        .article-main {
            background: var(--white);
            border-radius: var(--radius);
            padding: 36px;
            box-shadow: var(--shadow);
        }

        .article-cover img {
            border-radius: var(--radius-sm);
            width: 100%;
            margin-bottom: 28px;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: #2d2d3a;
        }

        .article-content h1,
        .article-content h2,
        .article-content h3,
        .article-content h4 {
            font-weight: 700;
            margin: 28px 0 12px;
            line-height: 1.4;
            color: var(--text);
        }

        .article-content h2 {
            font-size: 22px;
        }

        .article-content h3 {
            font-size: 18px;
        }

        .article-content p {
            margin-bottom: 16px;
        }

        .article-content ul {
            list-style: disc;
            margin: 0 0 16px 20px;
        }

        .article-content ol {
            list-style: decimal;
            margin: 0 0 16px 20px;
        }

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

        .article-content a {
            color: var(--blue);
            text-decoration: underline;
        }

        .article-content img {
            border-radius: 12px;
            margin: 20px 0;
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 8px 16px;
            background: #faf8f1;
            color: var(--text-weak);
            margin: 20px 0;
            border-radius: 0 10px 10px 0;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
        }

        .article-content th,
        .article-content td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }

        /* ---------- Sidebar ---------- */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
            position: sticky;
            top: 92px;
        }

        .sidebar-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
        }

        .sidebar-card h3 {
            font-size: 18px;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i {
            color: var(--accent);
        }

        .sidebar-card p {
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 10px;
        }

        .sidebar-card a.sidebar-link {
            display: block;
            padding: 9px 12px;
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
            border-radius: 8px;
            background: var(--bg);
            margin-bottom: 8px;
            transition: all 0.25s ease;
        }

        .sidebar-card a.sidebar-link:hover {
            background: rgba(240, 185, 11, 0.12);
            color: var(--primary);
            transform: translateX(4px);
        }

        .sidebar-card .btn-block {
            width: 100%;
            margin-top: 6px;
        }

        /* ---------- Empty ---------- */
        .article-empty {
            text-align: center;
            padding: 60px 20px;
        }

        .article-empty h2 {
            font-size: 28px;
            margin-bottom: 12px;
        }

        .article-empty p {
            color: var(--text-weak);
            margin-bottom: 24px;
        }

        /* ---------- Category Cards ---------- */
        .category-section {
            padding: 60px 0;
            background: var(--white);
            border-top: 1px solid var(--border);
        }

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

        .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 8px;
        }

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

        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .category-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            display: block;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(240, 185, 11, 0.5);
        }

        .category-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

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

        .category-card-body .badge {
            margin-bottom: 10px;
        }

        .category-card-body h3 {
            font-size: 18px;
            margin-bottom: 8px;
            font-weight: 700;
        }

        .category-card-body p {
            font-size: 14px;
            color: var(--text-weak);
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            padding: 60px 0;
            background: var(--bg);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
            border-color: rgba(240, 185, 11, 0.4);
        }

        .faq-item h3 {
            font-size: 16px;
            margin-bottom: 8px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .faq-item h3 i {
            color: var(--accent);
            font-size: 14px;
        }

        .faq-item p {
            font-size: 14px;
            color: var(--text-weak);
        }

        /* ---------- CTA ---------- */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #243b6b 100%);
            color: var(--white);
            padding: 64px 0;
            text-align: center;
        }

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

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto 28px;
            font-size: 16px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo {
            color: var(--white);
        }

        .footer-brand p {
            margin-top: 12px;
            font-size: 14px;
            max-width: 340px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            color: var(--white);
            margin-bottom: 14px;
            font-size: 16px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            font-size: 14px;
        }

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

        .footer-bottom {
            padding-top: 24px;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-card {
                flex: 1;
                min-width: 240px;
            }

            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }

            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                gap: 6px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                transform: translateY(-130%);
                transition: transform 0.3s ease;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
            }

            .main-nav.open {
                transform: translateY(0);
            }

            .nav-link {
                width: 100%;
                padding: 12px 16px;
            }

            .nav-link.active::after {
                left: 16px;
                right: auto;
                width: 30px;
            }

            .nav-cta {
                margin-left: 0;
                width: 100%;
                padding: 8px 0;
            }

            .nav-cta .btn {
                width: 100%;
            }

            .article-hero {
                padding: 48px 0 40px;
            }

            .article-hero h1 {
                font-size: 26px;
            }

            .article-section {
                padding: 36px 0;
            }

            .article-main {
                padding: 24px 18px;
                border-radius: 14px;
            }

            .category-grid {
                grid-template-columns: 1fr;
            }

            .faq-grid {
                grid-template-columns: 1fr;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

            .cta-section h2 {
                font-size: 26px;
            }

            .footer-bottom {
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .header-inner {
                height: 64px;
            }

            .logo {
                font-size: 17px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }

            .article-hero h1 {
                font-size: 22px;
            }

            .article-meta {
                gap: 10px;
                font-size: 13px;
            }

            .status-bar {
                flex-wrap: wrap;
                font-size: 12px;
            }

            .category-card-body {
                padding: 18px;
            }

            .faq-item {
                padding: 18px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .cta-buttons .btn {
                width: 100%;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1a1a2e;
            --primary-light: #252547;
            --accent: #e8a838;
            --accent-light: #f0c069;
            --accent-dark: #c98e2b;
            --success: #16c79a;
            --success-light: #d4f5eb;
            --bg: #f8f7f4;
            --bg-dark: #14142a;
            --card-bg: #ffffff;
            --text: #1a1a2e;
            --text-light: #6b6b80;
            --border: #e8e6e0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(26, 26, 46, 0.08);
            --shadow-lg: 0 8px 40px rgba(26, 26, 46, 0.12);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container: 1200px;
        }
        *,
        *::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", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(20, 20, 42, 0.95);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .logo:hover {
            opacity: 0.9;
            transform: translateY(-1px);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary);
            border-radius: 10px;
            font-weight: 800;
            font-size: 18px;
            box-shadow: 0 2px 12px rgba(232, 168, 56, 0.35);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 8px 16px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--accent-light);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link.active {
            color: #fff;
            background: rgba(232, 168, 56, 0.12);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            margin-left: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            gap: 8px;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(232, 168, 56, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 168, 56, 0.4);
            color: var(--primary);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.35);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            color: var(--accent-light);
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
            border-radius: 12px;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 24px;
            cursor: pointer;
            padding: 6px;
        }
        .page-banner {
            position: relative;
            padding: 120px 0 130px;
            background: linear-gradient(135deg, rgba(20, 20, 42, 0.94), rgba(37, 37, 71, 0.88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(232, 168, 56, 0.18), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner::after {
            content: "";
            position: absolute;
            bottom: -30%;
            left: 10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(22, 199, 154, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 168, 56, 0.16);
            border: 1px solid rgba(232, 168, 56, 0.4);
            color: var(--accent-light);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 20px;
        }
        .banner-content h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .banner-content h1 span {
            color: var(--accent-light);
            position: relative;
        }
        .banner-content p {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 30px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .banner-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 18px;
        }
        .breadcrumb a:hover {
            color: var(--accent-light);
        }
        .breadcrumb i {
            font-size: 12px;
            margin: 0 2px;
        }
        .section {
            padding: 88px 0;
        }
        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }
        .section-head .section-tag {
            display: inline-block;
            background: rgba(232, 168, 56, 0.1);
            color: #b8860b;
            padding: 5px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--text);
        }
        .section-head p {
            color: var(--text-light);
            font-size: 16px;
            line-height: 1.8;
        }
        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }
        .section-dark .section-head h2 {
            color: #fff;
        }
        .section-dark .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-dark .section-tag {
            background: rgba(232, 168, 56, 0.15);
            color: var(--accent-light);
        }
        .live-bar {
            margin-top: -38px;
            position: relative;
            z-index: 10;
        }
        .live-bar .container {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            border: 1px solid var(--border);
        }
        .live-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--text);
        }
        .live-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--success);
            position: relative;
            flex-shrink: 0;
        }
        .live-dot::after {
            content: "";
            position: absolute;
            top: -4px;
            left: -4px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: rgba(22, 199, 154, 0.25);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% {
                transform: scale(0.8);
                opacity: 1;
            }
            70% {
                transform: scale(1.6);
                opacity: 0;
            }
            100% {
                opacity: 0;
            }
        }
        .live-text b {
            font-weight: 700;
            color: var(--success);
        }
        .live-count {
            font-weight: 700;
            color: var(--accent);
            font-size: 16px;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 34px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 168, 56, 0.4);
        }
        .feature-card:hover::before {
            transform: scaleX(1);
        }
        .feature-icon {
            width: 58px;
            height: 58px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
            color: var(--primary);
            background: rgba(232, 168, 56, 0.12);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            box-shadow: 0 6px 20px rgba(232, 168, 56, 0.3);
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-dark);
        }
        .feature-link i {
            font-size: 12px;
            transition: var(--transition);
        }
        .feature-link:hover i {
            transform: translateX(4px);
        }
        .feature-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: rgba(22, 199, 154, 0.12);
            color: var(--success);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
        }
        .detail-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .detail-grid.reverse .detail-image {
            order: 2;
        }
        .detail-grid.reverse .detail-text {
            order: 1;
        }
        .detail-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .detail-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: var(--transition);
        }
        .detail-image:hover img {
            transform: scale(1.03);
        }
        .detail-image-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(20, 20, 42, 0.85);
            color: var(--accent-light);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 13px;
            backdrop-filter: blur(8px);
        }
        .detail-text h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 14px;
        }
        .detail-text p {
            color: var(--text-light);
            line-height: 1.85;
            margin-bottom: 18px;
        }
        .detail-list {
            list-style: none;
            margin-top: 20px;
        }
        .detail-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 12px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.6;
        }
        .detail-list li i {
            color: var(--success);
            font-size: 16px;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .steps-section {
            background: linear-gradient(135deg, rgba(232, 168, 56, 0.05), rgba(22, 199, 154, 0.04));
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
        }
        .steps-grid::before {
            content: "";
            position: absolute;
            top: 30px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light), var(--success));
            opacity: 0.3;
        }
        .step-item {
            text-align: center;
            position: relative;
            z-index: 2;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 20px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .step-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .step-num {
            width: 60px;
            height: 60px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary);
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 20px rgba(232, 168, 56, 0.3);
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .stats-section {
            background: var(--bg-dark);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 20% 80%, rgba(232, 168, 56, 0.08), transparent 50%);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 36px;
            position: relative;
            z-index: 2;
        }
        .stat-item {
            text-align: center;
            padding: 30px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }
        .stat-num {
            font-size: 48px;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }
        .stat-label {
            margin-top: 10px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(232, 168, 56, 0.4);
            box-shadow: var(--shadow);
        }
        .faq-q {
            padding: 22px 26px;
            font-size: 17px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            color: var(--text);
        }
        .faq-q i {
            color: var(--accent);
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
        }
        .faq-a p {
            padding: 0 26px 22px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: linear-gradient(135deg, rgba(20, 20, 42, 0.95), rgba(37, 37, 71, 0.92)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(232, 168, 56, 0.2), transparent 70%);
            border-radius: 50%;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 18px;
        }
        .cta-inner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 30px;
        }
        .cta-inner .btn {
            font-size: 17px;
            padding: 16px 40px;
        }
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 70px 0 30px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 30px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent-light);
            transform: translateX(4px);
        }
        .footer-bottom {
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            padding-top: 10px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .steps-grid::before {
                display: none;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .detail-grid {
                gap: 40px;
            }
            .detail-image img {
                height: 340px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
                gap: 4px;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
                transform: translateY(-150%);
                transition: var(--transition);
                z-index: 99;
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .main-nav .nav-link {
                width: 100%;
                padding: 14px 12px;
                border-radius: 8px;
            }
            .nav-cta {
                margin: 10px 0 0;
                width: 100%;
            }
            .nav-cta .btn {
                width: 100%;
            }
            .header-inner {
                height: 64px;
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
                border-radius: 8px;
            }
            .page-banner {
                padding: 80px 0 100px;
            }
            .banner-content h1 {
                font-size: 30px;
            }
            .banner-content p {
                font-size: 15px;
            }
            .section {
                padding: 60px 0;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .detail-grid,
            .detail-grid.reverse {
                grid-template-columns: 1fr;
            }
            .detail-grid.reverse .detail-image,
            .detail-grid.reverse .detail-text {
                order: 0;
            }
            .detail-image img {
                height: 280px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-num {
                font-size: 36px;
            }
            .cta-inner h2 {
                font-size: 28px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .live-bar .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .banner-content h1 {
                font-size: 24px;
            }
            .banner-actions {
                flex-direction: column;
            }
            .banner-actions .btn {
                width: 100%;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .live-bar {
                margin-top: -28px;
            }
            .live-bar .container {
                padding: 16px 20px;
            }
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-light: #3b82f6;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --bg: #f8fafc;
            --bg-dark: #0f172a;
            --bg-gradient: linear-gradient(135deg, #1e3a5f 0%, #2563eb 50%, #3b82f6 100%);
            --text: #1e293b;
            --text-light: #64748b;
            --text-white: #f8fafc;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 4px 24px rgba(37, 99, 235, 0.08);
            --shadow-lg: 0 12px 40px rgba(37, 99, 235, 0.15);
            --shadow-hover: 0 16px 48px rgba(37, 99, 235, 0.2);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 32px;
            --spacing-lg: 64px;
            --spacing-xl: 96px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
            font-size: inherit;
        }
        input, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul, ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== 导航栏 ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--bg-gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            font-size: 20px;
            font-weight: 900;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: flex-end;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.1);
            font-weight: 600;
        }
        .nav-cta {
            margin-left: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            line-height: 1.4;
            border: 2px solid transparent;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.4);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--bg-gradient);
            color: white;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
        }
        .btn-outline {
            border-color: rgba(255, 255, 255, 0.6);
            color: white;
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: white;
        }
        .btn-accent {
            background: var(--accent);
            color: #1e293b;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
            background: var(--accent-light);
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
        }

        /* 移动端菜单 */
        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            border: 1px solid var(--border);
            background: white;
            cursor: pointer;
        }
        .menu-toggle span {
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .menu-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== 页面 Banner ===== */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: var(--bg-gradient);
            overflow: hidden;
            text-align: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 100px;
            background: var(--bg);
            border-radius: 50% 50% 0 0;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 6px 18px;
            border-radius: 100px;
            font-size: 14px;
            color: var(--text-white);
            margin-bottom: 24px;
            backdrop-filter: blur(10px);
        }
        .banner-content h1 {
            font-size: 48px;
            font-weight: 800;
            color: white;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .banner-content p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .banner-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            max-width: 700px;
            margin: 40px auto 0;
            padding: 32px 24px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(20px);
        }
        .banner-stat {
            text-align: center;
        }
        .banner-stat .num {
            font-size: 32px;
            font-weight: 800;
            color: white;
            display: block;
            line-height: 1.2;
        }
        .banner-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 6px;
            display: block;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: white;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== 安全核心亮点 ===== */
        .safety-core {
            margin-top: -40px;
            position: relative;
            z-index: 5;
        }
        .core-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .core-card {
            background: white;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .core-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--bg-gradient);
            opacity: 0;
            transition: var(--transition);
        }
        .core-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .core-card:hover::before {
            opacity: 1;
        }
        .core-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(37, 99, 235, 0.05));
            color: var(--primary);
        }
        .core-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .core-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .core-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            margin-top: 16px;
        }

        /* ===== 安全防护体系 ===== */
        .safety-system {
            background: var(--bg-gradient);
            position: relative;
            overflow: hidden;
        }
        .safety-system::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
        }
        .safety-system .section-head h2 {
            color: white;
        }
        .safety-system .section-head p {
            color: rgba(255, 255, 255, 0.8);
        }
        .system-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            position: relative;
            z-index: 2;
        }
        .system-item {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }
        .system-item:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
        }
        .system-item .step-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 10px;
            display: block;
            letter-spacing: 1px;
        }
        .system-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: white;
            margin-bottom: 8px;
        }
        .system-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
        }

        /* ===== 安全资讯 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: white;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .news-image {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .news-card:hover .news-image img {
            transform: scale(1.05);
        }
        .news-image .badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #1e293b;
            padding: 4px 12px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 700;
            z-index: 2;
        }
        .news-body {
            padding: 24px;
        }
        .news-meta {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
            display: block;
        }
        .news-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: white;
            border-radius: var(--radius);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            width: 100%;
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            text-align: left;
            transition: var(--transition);
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-left: 12px;
            transition: var(--transition);
        }
        .faq-icon::after {
            content: '+';
            font-size: 18px;
            color: var(--primary);
            font-weight: 600;
            transition: var(--transition);
        }
        .faq-item.open .faq-icon {
            background: var(--primary);
            transform: rotate(45deg);
        }
        .faq-item.open .faq-icon::after {
            color: white;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: var(--bg-gradient);
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 36px;
            font-weight: 800;
            color: white;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            line-height: 1.6;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 24px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .footer-brand .logo {
            color: white;
            margin-bottom: 16px;
        }
        .footer-brand .logo .logo-icon {
            background: var(--accent);
            color: #1e293b;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-col h4 {
            color: white;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            .header-inner {
                height: 64px;
            }
            .main-nav {
                gap: 4px;
            }
            .nav-link {
                padding: 6px 14px;
                font-size: 14px;
            }
            .btn {
                padding: 8px 20px;
                font-size: 14px;
            }
            .banner-content h1 {
                font-size: 40px;
            }
            .banner-stat .num {
                font-size: 26px;
            }
            .core-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }
            .menu-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.3s ease, opacity 0.3s ease;
                z-index: 999;
                border-radius: 0 0 16px 16px;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav .nav-link {
                width: 100%;
                padding: 12px 16px;
                border-radius: 10px;
                font-size: 15px;
            }
            .main-nav .nav-cta {
                margin-left: 0;
                margin-top: 12px;
                width: 100%;
            }
            .main-nav .nav-cta .btn {
                width: 100%;
            }
            .banner-content h1 {
                font-size: 32px;
            }
            .banner-content p {
                font-size: 16px;
            }
            .banner-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                padding: 24px;
            }
            .banner-stat .num {
                font-size: 24px;
            }
            .section {
                padding: 56px 0;
            }
            .section-head {
                margin-bottom: 40px;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .core-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .system-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
                margin-bottom: 32px;
            }
            .cta-section {
                padding: 72px 0;
            }
            .cta-content h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 16px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .banner-content h1 {
                font-size: 26px;
            }
            .banner-stats {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 20px;
            }
            .banner-stat .num {
                font-size: 22px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .core-card {
                padding: 24px;
            }
            .system-item {
                padding: 20px;
            }
            .news-body {
                padding: 20px;
            }
            .btn-lg {
                width: 100%;
                max-width: 300px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
        }

        @media (max-width: 360px) {
            .banner-stats {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                font-size: 12px;
            }
        }