/* roulang page: index */
:root {
            --primary-color: #4f46e5;
            --primary-dark: #4338ca;
            --accent-color: #f59e0b;
            --bg-light: #f8fafc;
            --bg-dark: #0f172a;
            --text-dark: #1e293b;
            --text-gray: #64748b;
            --border-light: #e2e8f0;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 24px rgba(0,0,0,0.12);
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            font-size: 16px;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

        input,
        textarea {
            font-family: inherit;
        }

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

        /* ===== Header & Nav - 浮动 Dock 导航 ===== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 0 20px;
            margin-top: 16px;
        }

        .nav-dock {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 9999px;
            border: 1px solid rgba(255, 255, 255, 0.6);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: box-shadow 0.3s ease;
        }

        .nav-dock:hover {
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
        }

        .nav-logo {
            font-size: 18px;
            font-weight: 800;
            color: #312e81;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #4f46e5, #f59e0b);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: 9999px;
            font-size: 14px;
            font-weight: 500;
            color: #475569;
            transition: all 0.2s ease;
        }

        .nav-links li a:hover {
            background: #f1f5f9;
            color: #312e81;
        }

        .nav-links li a.active {
            background: #4f46e5;
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search input {
            width: 48px;
            height: 36px;
            border-radius: 9999px;
            border: 1px solid #e2e8f0;
            padding: 0 16px;
            font-size: 13px;
            background: #f8fafc;
            transition: all 0.3s ease;
            outline: none;
        }

        .nav-search input:focus {
            width: 180px;
            border-color: #4f46e5;
            background: #ffffff;
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
        }

        .nav-search i {
            position: absolute;
            right: 14px;
            font-size: 13px;
            color: #94a3b8;
            pointer-events: none;
        }

        .btn-primary-sm {
            background: linear-gradient(135deg, #4f46e5, #7c3aed);
            color: #fff;
            padding: 8px 20px;
            border-radius: 9999px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn-primary-sm:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
        }

        .btn-primary-sm:active {
            transform: translateY(0);
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: #f1f5f9;
            color: #1e293b;
            font-size: 18px;
        }

        /* ===== Hero 区域 ===== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #312e81 100%);
            padding: 100px 0 120px;
            overflow: hidden;
            color: #ffffff;
        }

        .hero-bg {
            position: absolute;
            top: -20%;
            right: -10%;
            width: 60%;
            height: 140%;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            transform: rotate(12deg);
        }

        .hero-bg-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, #0f172a 30%, rgba(15, 23, 42, 0.4) 100%);
        }

        .hero-container {
            position: relative;
            z-index: 5;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 6px 16px;
            border-radius: 9999px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }

        .hero-badge i {
            color: #fbbf24;
        }

        .hero-title {
            font-size: 48px;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .hero-title .highlight {
            background: linear-gradient(90deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-desc {
            font-size: 17px;
            color: #cbd5e1;
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 540px;
        }

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

        .btn-primary-hero {
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            color: #1e293b;
            padding: 14px 32px;
            border-radius: 9999px;
            font-size: 15px;
            font-weight: 700;
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-hero:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(245, 158, 11, 0.5);
        }

        .btn-outline-hero {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            color: #ffffff;
            padding: 14px 32px;
            border-radius: 9999px;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-hero:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.1);
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .stat-item {
            text-align: left;
        }

        .stat-number {
            font-size: 28px;
            font-weight: 800;
            color: #ffffff;
            display: block;
        }

        .stat-label {
            font-size: 13px;
            color: #94a3b8;
            margin-top: 4px;
        }

        .hero-visual {
            position: relative;
        }

        .hero-card-main {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 24px;
            padding: 32px;
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
        }

        .hero-card-main .card-image {
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 20px;
        }

        .hero-card-main .card-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .hero-card-main .card-date {
            font-size: 13px;
            color: #94a3b8;
        }

        .hero-card-tag {
            display: inline-block;
            background: rgba(251, 191, 36, 0.2);
            border: 1px solid rgba(251, 191, 36, 0.4);
            color: #fbbf24;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 9999px;
            margin-right: 8px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }

        .section-dark {
            background: #0f172a;
            color: #ffffff;
        }

        .section-light {
            background: #ffffff;
        }

        .section-gray {
            background: #f8fafc;
        }

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

        .section-label {
            display: inline-block;
            background: #eef2ff;
            color: #4f46e5;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 9999px;
            margin-bottom: 16px;
        }

        .section-label-accent {
            background: #fef3c7;
            color: #b45309;
        }

        .section-title {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 800;
            color: #1e293b;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

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

        .section-desc {
            font-size: 17px;
            color: #64748b;
            line-height: 1.7;
        }

        .section-desc-light {
            color: #94a3b8;
        }

        /* ===== 分类入口卡片 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .category-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 32px;
            border: 1px solid #e2e8f0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            transition: all 0.3s ease;
            display: block;
            position: relative;
            overflow: hidden;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
            border-color: #c7d2fe;
        }

        .category-card .icon-wrapper {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }

        .category-card .icon-bg-purple {
            background: #eef2ff;
            color: #4f46e5;
        }

        .category-card .icon-bg-amber {
            background: #fef3c7;
            color: #d97706;
        }

        .category-card .icon-bg-emerald {
            background: #d1fae5;
            color: #059669;
        }

        .category-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 8px;
        }

        .category-card p {
            font-size: 14px;
            color: #64748b;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .category-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: #4f46e5;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s ease;
        }

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

        /* ===== 内容 / 资讯列表 ===== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .content-card {
            background: #ffffff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid #e2e8f0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
            border-color: #c7d2fe;
        }

        .content-card .card-cover {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: #1e293b;
        }

        .content-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .content-card:hover .card-cover img {
            transform: scale(1.06);
        }

        .content-card .card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.6) 0%, transparent 40%);
        }

        .content-card .card-category {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            color: #4f46e5;
            font-size: 12px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 9999px;
            z-index: 2;
        }

        .content-card .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }

        .content-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: #1e293b;
            line-height: 1.5;
            transition: color 0.2s ease;
        }

        .content-card .card-body h3 a:hover {
            color: #4f46e5;
        }

        .content-card .card-excerpt {
            font-size: 14px;
            color: #64748b;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: #94a3b8;
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid #f1f5f9;
        }

        .card-meta i {
            margin-right: 4px;
            font-size: 12px;
        }

        /* ===== 数据 / 流程板块 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-grid::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, #e0e7ff, #c7d2fe, #e0e7ff);
            display: none;
        }

        .process-card {
            text-align: center;
            padding: 32px 20px;
            background: #ffffff;
            border-radius: 16px;
            border: 1px solid #e2e8f0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
        }

        .process-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
        }

        .process-step {
            width: 72px;
            height: 72px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, #4f46e5, #7c3aed);
            color: #ffffff;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 800;
            box-shadow: 0 8px 24px rgba(79, 70, 229, 0.25);
        }

        .process-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #1e293b;
        }

        .process-card p {
            font-size: 14px;
            color: #64748b;
            line-height: 1.7;
        }

        /* ===== 数据区块 ===== */
        .stats-dark {
            background: linear-gradient(135deg, #0f172a, #1e293b);
            border-radius: 24px;
            padding: 56px 48px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            box-shadow: 0 24px 48px rgba(15, 23, 42, 0.2);
        }

        .stat-dark-item {
            text-align: center;
            border-right: 1px solid rgba(255, 255, 255, 0.1);
            padding: 0 16px;
        }

        .stat-dark-item:last-child {
            border-right: none;
        }

        .stat-dark-number {
            font-size: 36px;
            font-weight: 800;
            color: #ffffff;
            display: block;
            margin-bottom: 8px;
        }

        .stat-dark-number .suffix {
            color: #fbbf24;
        }

        .stat-dark-label {
            font-size: 14px;
            color: #94a3b8;
        }

        /* ===== 双栏图文 ===== */
        .split-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .split-image {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.12);
        }

        .split-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .split-content .section-label {
            margin-bottom: 12px;
        }

        .split-content h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 20px;
            color: #1e293b;
        }

        .split-content p {
            font-size: 15px;
            color: #64748b;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .feature-list {
            list-style: none;
            margin: 24px 0;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 15px;
            color: #334155;
        }

        .feature-list li i {
            color: #4f46e5;
            margin-top: 4px;
            font-size: 14px;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid #e2e8f0;
            border-radius: 16px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow 0.2s ease;
        }

        .faq-item:hover {
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 22px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: #1e293b;
            transition: background 0.2s ease;
        }

        .faq-question:hover {
            background: #f8fafc;
        }

        .faq-question i {
            color: #4f46e5;
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-question i {
            transform: rotate(45deg);
        }

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

        .faq-answer-inner {
            padding: 0 24px 22px;
            font-size: 14px;
            color: #64748b;
            line-height: 1.8;
            border-top: 1px solid #f1f5f9;
            padding-top: 20px;
        }

        /* ===== CTA 区域 ===== */
        .cta-section {
            background: linear-gradient(135deg, #1e293b, #312e81);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::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;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 36px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 17px;
            color: #cbd5e1;
            margin-bottom: 32px;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #4f46e5, #f59e0b);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            font-size: 14px;
            color: #94a3b8;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-links a:hover {
            color: #fbbf24;
            padding-left: 4px;
        }

        .footer-bottom {
            padding-top: 30px;
            text-align: center;
            font-size: 13px;
        }

        .footer-bottom a {
            color: #64748b;
        }

        .footer-bottom a:hover {
            color: #fbbf24;
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            .hero-container {
                grid-template-columns: 1fr;
                gap: 40px;
                padding-top: 40px;
            }

            .hero-visual {
                max-width: 600px;
                margin: 0 auto;
                width: 100%;
            }

            .hero-title {
                font-size: 36px;
            }

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

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

            .stats-dark {
                grid-template-columns: repeat(2, 1fr);
                padding: 40px 32px;
            }

            .stat-dark-item {
                border-right: none;
            }

            .split-section {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

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

            .nav-dock {
                border-radius: 20px;
                padding: 10px 16px;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: #ffffff;
                border-radius: 16px;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }

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

            .nav-links li a {
                padding: 12px 16px;
                border-radius: 12px;
            }

            .nav-links li a.active {
                background: #eef2ff;
                color: #4f46e5;
                box-shadow: none;
            }

            .nav-search {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .btn-primary-sm {
                padding: 8px 16px;
                font-size: 13px;
            }

            .hero-section {
                padding: 60px 0 80px;
            }

            .hero-title {
                font-size: 28px;
            }

            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }

            .section {
                padding: 56px 0;
            }

            .section-title {
                font-size: 26px;
            }

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

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

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

            .stats-dark {
                grid-template-columns: 1fr;
            }

            .faq-question {
                font-size: 15px;
                padding: 18px 16px;
            }

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

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

        @media (max-width: 520px) {
            .nav-dock {
                padding: 8px 12px;
            }

            .nav-logo {
                font-size: 15px;
            }

            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
                border-radius: 8px;
            }

            .btn-primary-sm {
                display: none;
            }

            .hero-container {
                padding: 0 16px;
            }

            .hero-title {
                font-size: 24px;
            }

            .hero-stats {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .section-header {
                margin-bottom: 32px;
            }

            .section-title {
                font-size: 22px;
            }

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

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

            .btn-primary-hero,
            .btn-outline-hero {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #6d5dfc;
            --primary-dark: #5a45e0;
            --accent: #ffd76d;
            --bg: #f8f9ff;
            --dark-bg: #0d0b1a;
            --text: #1a1a2e;
            --muted: #6b7280;
            --white: #ffffff;
            --border: #e5e7eb;
            --radius: 18px;
            --shadow: 0 12px 30px rgba(109, 93, 252, .12);
            --transition: all .3s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input {
            font-family: inherit;
        }

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

        .site-header {
            position: sticky;
            top: 16px;
            z-index: 50;
            padding: 0 24px;
        }

        .nav-dock {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(13, 11, 26, .86);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 60px;
            padding: 10px 18px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, .22);
            position: relative;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            white-space: nowrap;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: rgba(255, 255, 255, .78);
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 15px;
            transition: var(--transition);
            display: inline-block;
        }

        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .12);
        }

        .nav-links a.active {
            color: #0d0b1a;
            background: linear-gradient(135deg, var(--accent), #ffc247);
            font-weight: 700;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search input {
            width: 140px;
            border: none;
            background: rgba(255, 255, 255, .12);
            color: #fff;
            border-radius: 30px;
            padding: 8px 14px 8px 36px;
            outline: none;
            font-size: 14px;
            transition: var(--transition);
        }

        .nav-search input::placeholder {
            color: rgba(255, 255, 255, .5);
        }

        .nav-search input:focus {
            width: 180px;
            background: rgba(255, 255, 255, .22);
        }

        .nav-search i {
            position: absolute;
            left: 14px;
            color: rgba(255, 255, 255, .6);
            font-size: 13px;
            pointer-events: none;
        }

        .btn-primary-sm {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 9px 20px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
            display: inline-block;
            white-space: nowrap;
        }

        .btn-primary-sm:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(109, 93, 252, .4);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 22px;
            cursor: pointer;
            padding: 4px;
        }

        .section-pad {
            padding: 80px 0;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 30px;
            background: rgba(109, 93, 252, .1);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 16px;
        }

        .section-subtitle {
            color: var(--muted);
            font-size: 17px;
            max-width: 640px;
            margin: 0 auto;
        }

        .page-hero {
            background: linear-gradient(rgba(13, 11, 26, .78), rgba(13, 11, 26, .82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 120px 0 96px;
            color: #fff;
            text-align: center;
            border-radius: 0 0 40px 40px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 40px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            color: rgba(255, 255, 255, .9);
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.2;
            max-width: 820px;
            margin: 0 auto 20px;
        }

        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, .78);
            max-width: 700px;
            margin: 0 auto 32px;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 13px 32px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            display: inline-block;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(109, 93, 252, .45);
        }

        .btn-outline {
            border: 1px solid rgba(255, 255, 255, .75);
            color: #fff;
            padding: 13px 32px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            display: inline-block;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, .14);
            transform: translateY(-2px);
        }

        .guide-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 20px;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-6px);
            border-color: rgba(109, 93, 252, .3);
        }

        .card-img {
            border-radius: 14px;
            overflow: hidden;
            margin-bottom: 16px;
            position: relative;
        }

        .card-img img {
            width: 100%;
            height: 165px;
            object-fit: cover;
            transition: transform .5s ease;
        }

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

        .card-icon {
            position: absolute;
            bottom: 12px;
            left: 12px;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .95);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, .16);
        }

        .guide-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 8px;
        }

        .guide-card p {
            color: var(--muted);
            font-size: 14px;
            flex: 1;
            margin: 0 0 16px;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .3s ease;
        }

        .guide-card:hover .card-link {
            gap: 10px;
        }

        .badge {
            display: inline-flex;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .badge-primary {
            background: rgba(109, 93, 252, .1);
            color: var(--primary);
        }

        .badge-accent {
            background: rgba(255, 215, 109, .2);
            color: #9a6b00;
        }

        .badge-dark {
            background: rgba(13, 11, 26, .08);
            color: var(--dark-bg);
        }

        .dark-pad {
            background: var(--dark-bg);
            color: #fff;
        }

        .dark-pad .section-subtitle {
            color: rgba(255, 255, 255, .6);
        }

        .node-card {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 22px;
            padding: 28px;
            transition: var(--transition);
            height: 100%;
        }

        .node-card:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-4px);
            border-color: rgba(255, 215, 109, .4);
        }

        .node-num {
            background: linear-gradient(135deg, var(--accent), #ffc247);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-size: 38px;
            font-weight: 800;
            line-height: 1;
            display: block;
            margin-bottom: 14px;
        }

        .node-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 8px;
        }

        .node-card p {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            margin: 0 0 20px;
        }

        .node-bar {
            height: 6px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .14);
            overflow: hidden;
        }

        .node-bar span {
            display: block;
            height: 100%;
            border-radius: 10px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }

        .path-list {
            position: relative;
        }

        .path-list::before {
            content: "";
            position: absolute;
            left: 24px;
            top: 12px;
            bottom: 12px;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--accent));
        }

        .path-item {
            display: flex;
            gap: 28px;
            margin-bottom: 32px;
            position: relative;
        }

        .path-dot {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
            z-index: 1;
            box-shadow: 0 6px 16px rgba(109, 93, 252, .3);
        }

        .path-content {
            background: #fff;
            border-radius: 16px;
            padding: 22px 26px;
            border: 1px solid var(--border);
            flex: 1;
            transition: var(--transition);
        }

        .path-content:hover {
            box-shadow: var(--shadow);
            border-color: rgba(109, 93, 252, .25);
        }

        .path-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 6px;
        }

        .path-content p {
            color: var(--muted);
            font-size: 15px;
            margin: 0;
        }

        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }

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

        .faq-item summary {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--muted);
            transition: transform .3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item[open] {
            box-shadow: var(--shadow);
            border-color: rgba(109, 93, 252, .2);
        }

        .faq-a {
            padding: 0 24px 20px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .cta-wrap {
            background: linear-gradient(135deg, #1b1535, #352e5f);
            border-radius: 30px;
            padding: 60px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-wrap::after {
            content: "";
            position: absolute;
            top: -70px;
            right: -70px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 215, 109, .14);
        }

        .cta-wrap::before {
            content: "";
            position: absolute;
            bottom: -50px;
            left: -50px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(109, 93, 252, .2);
        }

        .cta-wrap h2 {
            font-size: 32px;
            font-weight: 800;
            margin: 0 0 14px;
            position: relative;
            z-index: 1;
        }

        .cta-wrap p {
            color: rgba(255, 255, 255, .7);
            font-size: 17px;
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }

        .cta-btn {
            background: linear-gradient(135deg, var(--accent), #ffc247);
            color: #0d0b1a;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 16px;
            transition: var(--transition);
            display: inline-block;
            position: relative;
            z-index: 1;
        }

        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(255, 215, 109, .35);
        }

        .site-footer {
            background: #0d0b1a;
            color: rgba(255, 255, 255, .7);
            padding: 60px 0 0;
            margin-top: 80px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            max-width: 380px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 16px;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, .45);
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 4px;
            }

            .nav-links a {
                padding: 8px 12px;
                font-size: 14px;
            }

            .nav-search input {
                width: 110px;
            }

            .hero-title {
                font-size: 36px;
            }

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

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

            .nav-dock {
                border-radius: 30px;
                padding: 10px 14px;
            }

            .nav-logo {
                font-size: 15px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 62px;
                left: 10px;
                right: 10px;
                background: #0d0b1a;
                border-radius: 20px;
                padding: 14px;
                flex-direction: column;
                gap: 6px;
                box-shadow: 0 18px 40px rgba(0, 0, 0, .3);
            }

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

            .nav-links a {
                color: rgba(255, 255, 255, .8);
                padding: 12px 16px;
                border-radius: 12px;
            }

            .nav-links a.active {
                background: linear-gradient(135deg, var(--accent), #ffc247);
            }

            .nav-search {
                display: none;
            }

            .mobile-toggle {
                display: block;
            }

            .page-hero {
                padding: 90px 0 70px;
                border-radius: 0 0 28px 28px;
            }

            .hero-title {
                font-size: 30px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .section-pad {
                padding: 60px 0;
            }

            .section-title {
                font-size: 28px;
            }

            .cta-wrap {
                padding: 40px 24px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .nav-logo {
                font-size: 14px;
                gap: 7px;
            }

            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 12px;
            }

            .btn-primary-sm {
                padding: 8px 14px;
                font-size: 13px;
            }

            .hero-title {
                font-size: 25px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .btn-primary,
            .btn-outline {
                width: 100%;
                text-align: center;
            }

            .section-title {
                font-size: 24px;
            }

            .path-list::before {
                left: 19px;
            }

            .path-dot {
                width: 38px;
                height: 38px;
                font-size: 14px;
            }

            .path-content {
                padding: 16px 18px;
            }
        }

/* roulang page: article */
:root {
            --primary: #5b5bd6;
            --primary-hover: #4a4ac4;
            --accent: #f59e0b;
            --bg-dark: #0b1220;
            --bg-surface: #f8fafc;
            --text-main: #1e293b;
            --text-weak: #64748b;
            --border-color: #e2e8f0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --shadow-card: 0 4px 24px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 40px rgba(15, 23, 42, 0.12);
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body { font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif; background: var(--bg-surface); color: var(--text-main); line-height: 1.7; margin: 0; -webkit-font-smoothing: antialiased; }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; }
        button { cursor: pointer; border: none; background: none; }
        input, textarea { font-family: inherit; }

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

        .reading-progress { position: fixed; top: 0; left: 0; height: 3px; background: linear-gradient(90deg, var(--primary), #8b5cf6, var(--accent)); z-index: 200; width: 0; transition: width 0.15s linear; }

        .site-header { padding: 16px 24px; position: sticky; top: 0; z-index: 100; background: linear-gradient(180deg, rgba(11,18,32,0.92) 0%, rgba(11,18,32,0.7) 100%); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
        .nav-dock { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; background: rgba(255,255,255,0.94); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); border-radius: 22px; padding: 10px 20px; box-shadow: 0 8px 40px rgba(0,0,0,0.14), 0 0 0 1px rgba(255,255,255,0.5); border: 1px solid rgba(255,255,255,0.7); gap: 16px; }
        .nav-logo { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 800; color: var(--text-main); white-space: nowrap; letter-spacing: -0.2px; }
        .logo-icon { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary), #8b5cf6); color: #fff; border-radius: 11px; font-size: 17px; box-shadow: 0 4px 14px rgba(91,91,214,0.4); flex-shrink: 0; }
        .nav-links { display: flex; align-items: center; gap: 4px; list-style: none; padding: 0; margin: 0; }
        .nav-links li a { padding: 8px 16px; border-radius: 10px; font-size: 14px; font-weight: 600; color: #475569; transition: var(--transition-base); display: block; white-space: nowrap; }
        .nav-links li a:hover { background: rgba(91,91,214,0.08); color: var(--primary); transform: translateY(-1px); }
        .nav-links li a.active { background: rgba(91,91,214,0.12); color: var(--primary); font-weight: 700; }
        .nav-cta { display: flex; align-items: center; gap: 12px; }
        .nav-search { position: relative; display: flex; align-items: center; }
        .nav-search input { border: 1px solid #e2e8f0; border-radius: 10px; padding: 8px 14px 8px 36px; font-size: 13px; width: 150px; background: #f8fafc; transition: var(--transition-base); outline: none; }
        .nav-search input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(91,91,214,0.15); width: 180px; background: #fff; }
        .nav-search input::placeholder { color: #94a3b8; }
        .nav-search i { position: absolute; left: 13px; font-size: 14px; color: #94a3b8; pointer-events: none; }
        .btn-primary-sm { background: linear-gradient(135deg, var(--primary), #8b5cf6); color: #fff; padding: 9px 18px; border-radius: 10px; font-size: 14px; font-weight: 600; transition: var(--transition-base); box-shadow: 0 4px 14px rgba(91,91,214,0.35); display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
        .btn-primary-sm:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(91,91,214,0.45); }
        .btn-primary-sm:active { transform: translateY(0); }
        .btn-primary-sm:focus-visible { outline: 3px solid rgba(91,91,214,0.4); outline-offset: 2px; }
        .mobile-toggle { display: none; background: #fff; border: 1px solid #e2e8f0; border-radius: 10px; padding: 8px 12px; font-size: 16px; color: var(--text-main); transition: var(--transition-base); }
        .mobile-toggle:hover { background: #f1f5f9; }

        .page-hero { position: relative; padding: 72px 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; overflow: hidden; }
        .page-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(11,18,32,0.92) 0%, rgba(30,27,75,0.82) 45%, rgba(91,91,214,0.55) 100%); }
        .page-hero::after { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 80% 20%, rgba(245,158,11,0.15) 0%, transparent 60%); }
        .page-hero .container-site { position: relative; z-index: 2; }

        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,0.75); margin-bottom: 20px; flex-wrap: wrap; }
        .breadcrumb a { color: rgba(255,255,255,0.75); transition: var(--transition-base); }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb i { font-size: 11px; opacity: 0.6; }

        .hero-title { font-size: clamp(24px, 4vw, 40px); font-weight: 800; line-height: 1.3; color: #fff; max-width: 800px; margin: 16px 0 12px; letter-spacing: -0.5px; text-shadow: 0 2px 20px rgba(0,0,0,0.2); }
        .hero-meta { display: flex; flex-wrap: wrap; gap: 20px; color: rgba(255,255,255,0.75); font-size: 14px; margin-top: 12px; }
        .hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
        .hero-meta i { color: rgba(245,158,11,0.8); }

        .article-content-card { background: #fff; border-radius: 20px; box-shadow: var(--shadow-card); padding: 40px; border: 1px solid rgba(255,255,255,0.6); transition: var(--transition-base); }
        .article-content-card:hover { box-shadow: var(--shadow-hover); }

        .article-body { font-size: 16px; line-height: 1.9; color: #334155; }
        .article-body h2 { font-size: 22px; font-weight: 800; color: var(--text-main); margin-top: 32px; margin-bottom: 16px; padding-left: 16px; border-left: 4px solid var(--primary); line-height: 1.4; }
        .article-body h3 { font-size: 18px; font-weight: 700; color: var(--text-main); margin-top: 28px; margin-bottom: 12px; }
        .article-body h4 { font-size: 16px; font-weight: 700; color: var(--text-main); margin-top: 20px; margin-bottom: 8px; }
        .article-body p { margin-bottom: 16px; }
        .article-body img { border-radius: var(--radius-md); margin: 20px 0; box-shadow: 0 4px 16px rgba(0,0,0,0.08); }
        .article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 16px; }
        .article-body li { margin-bottom: 6px; }
        .article-body blockquote { border-left: 4px solid var(--accent); background: rgba(245,158,11,0.08); padding: 16px 20px; border-radius: 0 var(--radius-md) var(--radius-md) 0; margin: 20px 0; color: #7c5b2e; }
        .article-body a { color: var(--primary); border-bottom: 1px solid rgba(91,91,214,0.3); transition: var(--transition-base); }
        .article-body a:hover { color: var(--primary-hover); border-bottom-color: var(--primary); }
        .article-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
        .article-body table th { background: #f1f5f9; font-weight: 700; text-align: left; padding: 12px; border: 1px solid #e2e8f0; }
        .article-body table td { padding: 12px; border: 1px solid #e2e8f0; }
        .article-body code { background: #f1f5f9; border-radius: 4px; padding: 2px 6px; font-size: 0.9em; font-family: 'JetBrains Mono', monospace; }

        .tag-chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 500; border: 1px solid rgba(91,91,214,0.2); background: rgba(91,91,214,0.08); color: var(--primary); transition: var(--transition-base); }
        .tag-chip:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-1px); }

        .share-btn { width: 38px; height: 38px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; transition: var(--transition-base); border: 1px solid #e2e8f0; background: #fff; color: #64748b; }
        .share-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(0,0,0,0.12); }
        .share-btn:focus-visible { outline: 3px solid rgba(91,91,214,0.3); outline-offset: 2px; }

        .sidebar-card { background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-card); padding: 24px; transition: var(--transition-base); border: 1px solid rgba(255,255,255,0.6); }
        .sidebar-card:hover { box-shadow: var(--shadow-hover); }

        .sidebar-link { display: flex; align-items: center; justify-content: space-between; padding: 11px 16px; border-radius: 12px; background: #f8fafc; color: #475569; font-size: 14px; font-weight: 500; transition: var(--transition-base); }
        .sidebar-link:hover { background: rgba(91,91,214,0.08); color: var(--primary); transform: translateX(4px); }
        .sidebar-link.active { background: rgba(91,91,214,0.12); color: var(--primary); font-weight: 700; }

        .latest-item { display: flex; gap: 10px; padding: 10px 0; border-bottom: 1px solid #f1f5f9; transition: var(--transition-base); }
        .latest-item:last-child { border-bottom: none; }
        .latest-item:hover { padding-left: 6px; }
        .latest-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); margin-top: 8px; flex-shrink: 0; transition: var(--transition-base); }
        .latest-item:hover .latest-dot { transform: scale(1.6); background: var(--accent); }

        .related-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); transition: var(--transition-base); height: 100%; border: 1px solid rgba(255,255,255,0.6); display: block; }
        .related-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
        .related-card .img-wrap { overflow: hidden; }
        .related-card img { width: 100%; height: 200px; object-fit: cover; transition: transform 0.5s ease; }
        .related-card:hover img { transform: scale(1.06); }

        .line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

        .cta-section { background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, var(--primary) 100%); padding: 80px 0; position: relative; overflow: hidden; }
        .cta-section::before { content: ''; position: absolute; top: -60%; right: -20%; width: 60%; height: 200%; background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%); }
        .cta-section::after { content: ''; position: absolute; bottom: -40%; left: -10%; width: 40%; height: 150%; background: radial-gradient(circle, rgba(245,158,11,0.15) 0%, transparent 70%); }

        .site-footer { background: #0b1220; color: #94a3b8; padding: 64px 0 24px; }
        .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
        .footer-brand p { font-size: 14px; line-height: 1.8; margin-top: 16px; color: #94a3b8; }
        .footer-logo { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; color: #fff; }
        .footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
        .footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
        .footer-links a { font-size: 14px; color: #94a3b8; transition: var(--transition-base); }
        .footer-links 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: #64748b; }

        .go-top { position: fixed; bottom: 30px; right: 30px; width: 46px; height: 46px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(91,91,214,0.4); opacity: 0; visibility: hidden; transition: var(--transition-base); z-index: 99; }
        .go-top.show { opacity: 1; visibility: visible; }
        .go-top:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(91,91,214,0.5); }
        .go-top:focus-visible { outline: 3px solid rgba(91,91,214,0.4); outline-offset: 2px; }

        .faq-item { border: 1px solid #e2e8f0; border-radius: 14px; padding: 20px 24px; background: #fff; transition: var(--transition-base); }
        .faq-item:hover { box-shadow: var(--shadow-card); border-color: rgba(91,91,214,0.2); }
        .faq-icon { width: 32px; height: 32px; border-radius: 50%; background: rgba(91,91,214,0.1); color: var(--primary); display: inline-flex; align-items: center; justify-content: center; font-size: 13px; flex-shrink: 0; }

        @media (max-width: 992px) {
            .nav-links { display: none; position: absolute; top: 74px; left: 24px; right: 24px; background: #fff; border-radius: 16px; box-shadow: 0 20px 60px rgba(0,0,0,0.2); padding: 16px; flex-direction: column; gap: 8px; z-index: 100; border: 1px solid #e2e8f0; }
            .nav-links.open { display: flex; }
            .nav-links li a { display: block; padding: 12px 16px; text-align: center; }
            .nav-links li a.active { background: rgba(91,91,214,0.1); }
            .mobile-toggle { display: block; }
            .nav-search { display: none; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
        }

        @media (max-width: 768px) {
            .site-header { padding: 12px 16px; }
            .nav-dock { padding: 8px 14px; border-radius: 18px; }
            .nav-logo { font-size: 15px; }
            .logo-icon { width: 32px; height: 32px; font-size: 14px; }
            .nav-cta .btn-primary-sm { display: none; }
            .page-hero { padding: 48px 0; }
            .article-content-card { padding: 24px 20px; }
            .hero-meta { gap: 12px; font-size: 13px; }
            .hero-title { font-size: 26px; }
            .go-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
        }

        @media (max-width: 520px) {
            .container-site { padding: 0 16px; }
            .nav-dock { gap: 8px; }
            .logo-icon { display: none; }
            .nav-links { left: 16px; right: 16px; top: 68px; }
            .faq-item { padding: 16px; }
        }

/* roulang page: category2 */
:root {
            --primary: #0d1b2a;
            --primary-light: #1b2f47;
            --accent: #f0a500;
            --accent-dark: #d18f00;
            --violet: #6c63ff;
            --surface: #ffffff;
            --bg: #f4f6fb;
            --border: #e2e8f0;
            --text: #1e293b;
            --text-soft: #5c6b84;
            --success: #10b981;
            --info: #3b82f6;
            --radius-sm: 10px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 4px 16px rgba(13, 27, 42, .06);
            --shadow: 0 16px 40px rgba(13, 27, 42, .08);
            --shadow-lg: 0 32px 64px rgba(13, 27, 42, .12);
            --transition: all .35s cubic-bezier(.4, 0, .2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
            outline: none;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container-site {
            width: min(1180px, 92%);
            margin: 0 auto;
        }

        /* ======== Header / Dock Nav ======== */
        .site-header {
            position: fixed;
            top: 18px;
            left: 0;
            right: 0;
            z-index: 100;
            padding: 0 20px;
            pointer-events: none;
        }
        .nav-dock {
            pointer-events: auto;
            max-width: 1180px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            gap: 18px;
            background: rgba(13, 27, 42, .86);
            backdrop-filter: blur(18px) saturate(160%);
            -webkit-backdrop-filter: blur(18px) saturate(160%);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 60px;
            padding: 12px 22px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, .28);
            transition: var(--transition);
        }
        .nav-dock:hover {
            background: rgba(13, 27, 42, .94);
            box-shadow: 0 16px 48px rgba(0, 0, 0, .34);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 17px;
            color: #fff;
            letter-spacing: .3px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--accent), #ff7a59);
            border-radius: 12px;
            color: #0d1b2a;
            font-size: 16px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
            margin-right: auto;
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: 30px;
            color: rgba(255, 255, 255, .78);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
            transform: translateY(-1px);
        }
        .nav-links a.active {
            color: #0d1b2a;
            background: linear-gradient(135deg, var(--accent), #ffd166);
            font-weight: 700;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-search input {
            width: 0;
            padding: 0;
            border-radius: 30px;
            border: 1px solid transparent;
            background: rgba(255, 255, 255, .08);
            color: #fff;
            font-size: 13px;
            transition: var(--transition);
            opacity: 0;
        }
        .nav-search i {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            cursor: pointer;
            padding: 8px;
            border-radius: 50%;
            transition: var(--transition);
        }
        .nav-search i:hover {
            color: var(--accent);
        }
        .nav-search:focus-within input {
            width: 140px;
            padding: 8px 36px 8px 16px;
            opacity: 1;
        }
        .nav-search:focus-within i {
            position: absolute;
            right: 12px;
            color: var(--accent);
        }
        .btn-primary-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--accent), #ffd166);
            color: #0d1b2a;
            font-size: 13px;
            font-weight: 700;
            transition: var(--transition);
        }
        .btn-primary-sm:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(240, 165, 0, .4);
        }
        .mobile-toggle {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: rgba(255, 255, 255, .1);
            color: #fff;
            font-size: 16px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .mobile-toggle:hover {
            background: rgba(255, 255, 255, .2);
        }

        /* ======== Hero ======== */
        .hero-inner {
            position: relative;
            min-height: 600px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            padding: 160px 0 80px;
            isolation: isolate;
        }
        .hero-inner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, .92), rgba(13, 27, 42, .72), rgba(108, 99, 255, .35));
            z-index: -1;
        }
        .hero-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 30px;
            padding: 6px 14px;
            color: rgba(255, 255, 255, .85);
            font-size: 13px;
            margin-bottom: 22px;
            backdrop-filter: blur(6px);
        }
        .hero-breadcrumb i {
            font-size: 11px;
            color: rgba(255, 255, 255, .5);
        }
        .hero-content h1 {
            color: #fff;
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            max-width: 680px;
        }
        .hero-content h1 span {
            background: linear-gradient(135deg, var(--accent), #ffd166);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .hero-content .lead {
            color: rgba(255, 255, 255, .82);
            font-size: 17px;
            max-width: 600px;
            margin-bottom: 30px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }
        .btn-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
        }
        .btn-hero-primary {
            background: linear-gradient(135deg, var(--accent), #ffd166);
            color: #0d1b2a;
        }
        .btn-hero-primary:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 16px 36px rgba(240, 165, 0, .4);
        }
        .btn-hero-ghost {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .22);
            color: #fff;
        }
        .btn-hero-ghost:hover {
            background: rgba(255, 255, 255, .18);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
        }
        .hero-stat {
            border-left: 2px solid rgba(255, 255, 255, .25);
            padding-left: 16px;
        }
        .hero-stat strong {
            display: block;
            color: #fff;
            font-size: 26px;
            font-weight: 800;
            line-height: 1.2;
        }
        .hero-stat strong i {
            color: var(--accent);
            font-style: normal;
        }
        .hero-stat span {
            color: rgba(255, 255, 255, .65);
            font-size: 13px;
        }

        /* ======== Sections ======== */
        .section {
            padding: 90px 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(108, 99, 255, .08);
            border: 1px solid rgba(108, 99, 255, .16);
            color: var(--violet);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 16px;
        }
        .section-head h2 {
            font-size: clamp(26px, 3.6vw, 38px);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .section-head p {
            color: var(--text-soft);
            font-size: 16px;
            line-height: 1.8;
        }

        /* ======== Intro ======== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 52px;
            align-items: center;
        }
        .intro-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .intro-visual::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(transparent, rgba(13, 27, 42, .65));
        }
        .intro-visual img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform .6s cubic-bezier(.4, 0, .2, 1);
        }
        .intro-visual:hover img {
            transform: scale(1.05);
        }
        .intro-content h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .intro-content>p {
            color: var(--text-soft);
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 20px;
            transition: var(--transition);
        }
        .feature-list li:hover {
            border-color: rgba(108, 99, 255, .3);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .feature-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            background: rgba(108, 99, 255, .1);
            color: var(--violet);
            flex-shrink: 0;
        }
        .feature-list strong {
            display: block;
            font-size: 15px;
            color: var(--primary);
            margin-bottom: 2px;
        }
        .feature-list span {
            font-size: 13px;
            color: var(--text-soft);
            line-height: 1.6;
        }

        /* ======== Types ======== */
        .types-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .types-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(108, 99, 255, .35), transparent 70%);
            border-radius: 50%;
        }
        .types-section .section-tag {
            background: rgba(255, 255, 255, .08);
            border-color: rgba(255, 255, 255, .16);
            color: #ffd166;
        }
        .types-section .section-head h2 {
            color: #fff;
        }
        .types-section .section-head p {
            color: rgba(255, 255, 255, .7);
        }
        .types-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .type-card {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            position: relative;
            transition: var(--transition);
            overflow: hidden;
        }
        .type-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(255, 255, 255, .08), transparent 50%);
            opacity: 0;
            transition: var(--transition);
        }
        .type-card:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-8px);
            border-color: rgba(255, 255, 255, .2);
        }
        .type-card:hover::after {
            opacity: 1;
        }
        .type-card-head {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 18px;
        }
        .type-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--accent), #ff7a59);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #0d1b2a;
            box-shadow: 0 8px 24px rgba(240, 165, 0, .3);
        }
        .type-icon.violet {
            background: linear-gradient(135deg, var(--violet), #a855f7);
            color: #fff;
            box-shadow: 0 8px 24px rgba(108, 99, 255, .35);
        }
        .type-icon.green {
            background: linear-gradient(135deg, #10b981, #34d399);
            color: #fff;
            box-shadow: 0 8px 24px rgba(16, 185, 129, .3);
        }
        .type-card h3 {
            color: #fff;
            font-size: 19px;
            font-weight: 700;
        }
        .type-card .type-tagline {
            color: rgba(255, 255, 255, .5);
            font-size: 13px;
        }
        .type-card p {
            color: rgba(255, 255, 255, .72);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }
        .type-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            position: relative;
            z-index: 1;
        }
        .type-tags span {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .1);
            color: rgba(255, 255, 255, .8);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            transition: var(--transition);
        }
        .type-tags span:hover {
            background: rgba(255, 255, 255, .18);
        }

        /* ======== Steps ======== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 26px;
            counter-reset: step;
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 34px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--violet), #8b5cf6);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            box-shadow: 0 8px 20px rgba(108, 99, 255, .3);
        }
        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
        }
        .step-arrow {
            position: absolute;
            top: 50%;
            right: -20px;
            transform: translateY(-50%);
            color: var(--border);
            font-size: 22px;
            z-index: 2;
        }

        /* ======== News ======== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .news-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .news-thumb {
            position: relative;
            height: 190px;
            overflow: hidden;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.08);
        }
        .news-thumb .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(13, 27, 42, .75);
            backdrop-filter: blur(4px);
            color: #ffd166;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }
        .news-body {
            padding: 22px 22px 24px;
        }
        .news-date {
            font-size: 12px;
            color: var(--text-soft);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 8px;
        }
        .news-body h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .news-body p {
            font-size: 13px;
            color: var(--text-soft);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .news-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--violet);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-link:hover {
            gap: 10px;
            color: var(--accent);
        }

        /* ======== FAQ ======== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: var(--transition);
            overflow: hidden;
        }
        .faq-item:has(.faq-toggle.active) {
            border-color: rgba(108, 99, 255, .3);
            box-shadow: var(--shadow-sm);
        }
        .faq-toggle {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }
        .faq-toggle i {
            font-size: 14px;
            color: var(--text-soft);
            transition: transform .35s ease;
            flex-shrink: 0;
        }
        .faq-toggle.active i {
            transform: rotate(180deg);
            color: var(--violet);
        }
        .faq-toggle:hover {
            background: rgba(108, 99, 255, .03);
        }
        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease, padding .4s ease;
        }
        .faq-content-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.75;
        }

        /* ======== CTA ======== */
        .cta-section {
            padding: 70px 0;
            position: relative;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary), #1e3a5f);
            border-radius: 28px;
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            box-shadow: var(--shadow-lg);
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(240, 165, 0, .4), transparent 70%);
            border-radius: 50%;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: 40px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(108, 99, 255, .4), transparent 70%);
            border-radius: 50%;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            color: #fff;
            max-width: 540px;
        }
        .cta-content h2 {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 800;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .cta-content p {
            color: rgba(255, 255, 255, .75);
            font-size: 15px;
            line-height: 1.7;
        }
        .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 34px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-cta-solid {
            background: linear-gradient(135deg, var(--accent), #ffd166);
            color: #0d1b2a;
            box-shadow: 0 8px 30px rgba(240, 165, 0, .35);
        }
        .btn-cta-solid:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(240, 165, 0, .5);
        }
        .btn-cta-outline {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .25);
            color: #fff;
        }
        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, .18);
            transform: translateY(-4px);
        }

        /* ======== Footer ======== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, .75);
            padding: 70px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 46px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 19px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .58);
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: .3px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .58);
            font-size: 14px;
            line-height: 1.5;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .42);
        }

        /* ======== Focus / Accessibility ======== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(108, 99, 255, .55);
            outline-offset: 3px;
            border-radius: 6px;
        }

        /* ======== Responsive ======== */
        @media (max-width: 1024px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-visual img {
                height: 320px;
            }
            .types-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-box {
                flex-direction: column;
                text-align: center;
                padding: 44px 32px;
            }
            .cta-content {
                max-width: 100%;
            }
            .cta-actions {
                flex-direction: row;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                top: 10px;
                padding: 0 12px;
            }
            .nav-dock {
                border-radius: 24px;
                padding: 10px 16px;
                flex-wrap: wrap;
                gap: 10px;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                background: var(--primary);
                border-radius: 18px;
                padding: 10px;
                gap: 4px;
            }
            .nav-links.mobile-open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 10px 14px;
                border-radius: 12px;
            }
            .nav-search {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-logo {
                font-size: 14px;
                flex: 1;
            }
            .nav-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .hero-inner {
                min-height: 520px;
                padding: 130px 0 56px;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat strong {
                font-size: 20px;
            }
            .section {
                padding: 60px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            .types-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .hero-content .lead {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-hero {
                justify-content: center;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .cta-box {
                padding: 36px 20px;
                border-radius: 20px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #7c3aed;
            --primary-dark: #5b21b6;
            --primary-light: #a78bfa;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg: #f8fafc;
            --bg-dark: #0f172a;
            --text: #1e293b;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s ease;
        }

        * {
            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;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
        }

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

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

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

        input:focus,
        button:focus,
        a:focus,
        summary:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        /* 浮动 Dock 导航 */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 0 16px;
        }

        .nav-dock {
            position: relative;
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.4);
            border-radius: 24px;
            padding: 12px 24px;
            box-shadow: var(--shadow);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text);
            white-space: nowrap;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-links a {
            display: block;
            padding: 10px 18px;
            border-radius: 12px;
            font-weight: 500;
            font-size: 0.93rem;
            color: var(--text-light);
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(124, 58, 237, 0.08);
        }

        .nav-links a.active {
            color: var(--primary);
            background: rgba(124, 58, 237, 0.12);
            font-weight: 600;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search input {
            width: 140px;
            padding: 8px 14px 8px 36px;
            border-radius: 20px;
            border: 1px solid var(--border);
            background: rgba(248, 250, 252, 0.8);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .nav-search input:focus {
            width: 180px;
            border-color: var(--primary);
            outline: none;
        }

        .nav-search i {
            position: absolute;
            left: 14px;
            color: var(--text-light);
            font-size: 0.85rem;
        }

        .btn-primary-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
        }

        .btn-primary-sm:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.3rem;
            color: var(--text);
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
        }

        .mobile-toggle:hover {
            background: rgba(124, 58, 237, 0.1);
        }

        /* 响应式导航 */
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: #fff;
                border-radius: 16px;
                box-shadow: var(--shadow-lg);
                padding: 12px;
                flex-direction: column;
                align-items: stretch;
            }

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

            .nav-links a {
                padding: 14px 16px;
            }

            .nav-search input {
                width: 120px;
            }

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

        @media (max-width: 640px) {
            .nav-search {
                display: none;
            }

            .nav-logo {
                font-size: 0.92rem;
            }

            .nav-dock {
                padding: 10px 16px;
            }
        }

        /* Hero 区块 */
        .hero-section {
            padding: 32px 0 0;
        }

        .hero-panel {
            position: relative;
            border-radius: 32px;
            background-size: cover;
            background-position: center;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
            padding: 60px;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.65) 50%, rgba(15, 23, 42, 0.25) 100%);
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.4);
            color: #fbbf24;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            backdrop-filter: blur(8px);
        }

        .text-gold {
            color: #fbbf24;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.35);
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(124, 58, 237, 0.45);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            padding: 14px 32px;
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(6px);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: #fff;
        }

        /* 板块通用 */
        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text);
            margin-top: 12px;
            line-height: 1.3;
        }

        .section-sub {
            color: var(--text-light);
            margin-top: 8px;
            font-size: 1.05rem;
        }

        /* 数据卡片 */
        .stat-card {
            background: #fff;
            border-radius: 20px;
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .stat-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
        }

        .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text);
            line-height: 1.2;
        }

        .stat-num .stat-plus,
        .stat-num .stat-unit {
            color: var(--primary);
            font-size: 1.6rem;
        }

        .stat-label {
            color: var(--text-light);
            margin-top: 4px;
            font-size: 0.95rem;
        }

        /* 赛事卡片 */
        .event-card {
            background: #fff;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

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

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

        .event-card:hover .event-img img {
            transform: scale(1.06);
        }

        .event-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 23, 42, 0.75);
            color: #fff;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            backdrop-filter: blur(6px);
        }

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

        .event-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
        }

        .event-body p {
            color: var(--text-light);
            margin-top: 8px;
            font-size: 0.92rem;
            line-height: 1.6;
            flex: 1;
        }

        .event-meta {
            display: flex;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
            color: var(--text-light);
            font-size: 0.82rem;
            gap: 8px;
            flex-wrap: wrap;
        }

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

        .event-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .event-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* 奖池分配 */
        .reward-bar {
            margin-bottom: 18px;
        }

        .reward-label {
            display: flex;
            justify-content: space-between;
            font-weight: 600;
            margin-bottom: 6px;
            font-size: 0.95rem;
        }

        .reward-track {
            height: 10px;
            background: #f1f5f9;
            border-radius: 10px;
            overflow: hidden;
        }

        .reward-fill {
            height: 100%;
            border-radius: 10px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }

        .reward-visual {
            position: relative;
        }

        .reward-note {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background: rgba(15, 23, 42, 0.78);
            color: #fff;
            padding: 16px 20px;
            border-radius: 16px;
            backdrop-filter: blur(8px);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* 参赛流程 */
        .process-section {
            background: var(--bg-dark);
        }

        .step-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 32px 24px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: var(--transition);
            position: relative;
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .step-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: rgba(245, 158, 11, 0.85);
            line-height: 1;
        }

        .step-item h3 {
            color: #fff;
            margin-top: 16px;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .step-item p {
            color: rgba(255, 255, 255, 0.65);
            margin-top: 8px;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* 往期冠军 */
        .winner-card {
            background: #fff;
            border-radius: 20px;
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .winner-avatar {
            width: 72px;
            height: 72px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.8rem;
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.4);
        }

        .winner-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
        }

        .winner-title {
            display: inline-block;
            margin-top: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .winner-card p {
            color: var(--text-light);
            margin-top: 12px;
            font-size: 0.9rem;
        }

        /* FAQ */
        .faq-item {
            background: #f8fafc;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 20px 24px;
            transition: var(--transition);
        }

        .faq-item[open] {
            background: #fff;
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-light);
        }

        .faq-item summary {
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--primary);
            transition: transform 0.3s;
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item p {
            margin-top: 14px;
            color: var(--text-light);
            line-height: 1.7;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }

        /* CTA */
        .cta-panel {
            position: relative;
        }

        .cta-pattern {
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.12) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.3) 0%, transparent 40%);
            pointer-events: none;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
            transition: var(--transition);
        }

        .btn-accent:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(245, 158, 11, 0.5);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: #fff;
            font-size: 1.1rem;
        }

        .footer-brand p {
            margin-top: 16px;
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 16px;
            font-size: 1rem;
        }

        .footer-links {
            list-style: none;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* 响应式细节 */
        @media (max-width: 768px) {
            .container-site {
                padding: 0 16px;
            }

            .hero-panel {
                min-height: 440px;
                padding: 40px 24px;
                border-radius: 24px;
            }

            .hero-panel h1 {
                font-size: 2rem;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-outline-light {
                justify-content: center;
            }

            .event-meta {
                flex-direction: column;
                align-items: flex-start;
            }
        }