/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary-dark: #0d1b2a;
            --primary-mid: #1b2838;
            --primary-light: #2a3f54;
            --accent-gold: #f0a500;
            --accent-gold-hover: #d4940a;
            --accent-amber: #e8920c;
            --text-light: #f0f2f5;
            --text-muted: #a0b0c0;
            --text-dark: #1a1a2e;
            --bg-main: #f4f6f9;
            --bg-card: #ffffff;
            --bg-sidebar: #0d1b2a;
            --border-light: #e0e4e8;
            --border-glow: rgba(240, 165, 0, 0.3);
            --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 260px;
            --header-height: 0px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-main);
            color: var(--text-dark);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        a:hover { color: var(--accent-gold); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: 1rem; outline: none; }
        button { cursor: pointer; border: none; background: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-dark); }
        h1 { font-size: 2.6rem; }
        h2 { font-size: 2rem; margin-bottom: 1rem; }
        h3 { font-size: 1.4rem; }
        p { margin-bottom: 0.8rem; color: #3d4a5a; }

        /* ===== 左侧 App Shell 导航 ===== */
        .app-shell {
            display: flex;
            width: 100%;
            min-height: 100vh;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            color: var(--text-light);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: 2px 0 20px rgba(0,0,0,0.3);
            transition: transform var(--transition);
            overflow-y: auto;
        }
        .sidebar-brand {
            padding: 1.8rem 1.5rem 1.2rem;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .sidebar-brand .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: 0.5px;
        }
        .sidebar-brand .logo i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }
        .sidebar-brand .logo-sub {
            font-size: 0.7rem;
            color: var(--text-muted);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-top: 0.2rem;
            padding-left: 2.2rem;
        }
        .sidebar-nav {
            flex: 1;
            padding: 1.2rem 0;
        }
        .sidebar-nav .nav-section-title {
            padding: 0.6rem 1.5rem 0.4rem;
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            opacity: 0.6;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 0.9rem;
            padding: 0.85rem 1.5rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }
        .sidebar-nav a i {
            width: 1.4rem;
            font-size: 1.1rem;
            text-align: center;
        }
        .sidebar-nav a:hover {
            color: var(--text-light);
            background: rgba(255,255,255,0.04);
            border-left-color: var(--accent-gold);
        }
        .sidebar-nav a.active {
            color: var(--accent-gold);
            background: rgba(240, 165, 0, 0.08);
            border-left-color: var(--accent-gold);
            font-weight: 600;
        }
        .sidebar-footer {
            padding: 1.2rem 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 0.75rem;
            color: var(--text-muted);
            opacity: 0.7;
        }

        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content-inner {
            flex: 1;
            padding: 0;
        }

        /* ===== 移动端顶栏 ===== */
        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--bg-sidebar);
            color: var(--text-light);
            padding: 0.8rem 1.2rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0,0,0,0.2);
        }
        .mobile-topbar .logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            color: var(--accent-gold);
            font-size: 1.05rem;
        }
        .mobile-topbar .logo i { font-size: 1.3rem; }
        .mobile-menu-btn {
            color: var(--text-light);
            font-size: 1.5rem;
            padding: 0.2rem 0.4rem;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 5rem 0 4.5rem;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-mid) 60%, var(--primary-light) 100%);
            color: var(--text-light);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-main), transparent);
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(240,165,0,0.18);
            border: 1px solid rgba(240,165,0,0.25);
            padding: 0.3rem 1rem;
            border-radius: 50px;
            font-size: 0.8rem;
            color: var(--accent-gold);
            margin-bottom: 1.2rem;
            letter-spacing: 0.5px;
        }
        .hero h1 {
            font-size: 3rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 0.6rem;
            text-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }
        .hero h1 span { color: var(--accent-gold); }
        .hero .lead {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent-gold);
            color: var(--primary-dark);
            border-color: var(--accent-gold);
        }
        .btn-primary:hover {
            background: var(--accent-gold-hover);
            border-color: var(--accent-gold-hover);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(240,165,0,0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-light);
            border-color: rgba(255,255,255,0.25);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.08);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.5rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .hero-stats .stat-item {
            text-align: center;
        }
        .hero-stats .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }
        .hero-stats .stat-label {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 4rem 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-dark {
            background: var(--primary-dark);
            color: var(--text-light);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark p { color: var(--text-light); }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 800;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent-gold);
            border-radius: 4px;
            margin: 0.8rem auto 0;
        }
        .section-title p {
            color: var(--text-muted);
            max-width: 560px;
            margin: 0.8rem auto 0;
            font-size: 1rem;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            gap: 1.8rem;
        }
        .card-grid-3 { grid-template-columns: repeat(3, 1fr); }
        .card-grid-4 { grid-template-columns: repeat(4, 1fr); }
        .card-grid-2 { grid-template-columns: repeat(2, 1fr); }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-gold);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-bottom: 1px solid var(--border-light);
        }
        .card-body {
            padding: 1.4rem 1.5rem 1.6rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .card-body h3 a { color: var(--text-dark); }
        .card-body h3 a:hover { color: var(--accent-gold); }
        .card-body p {
            font-size: 0.9rem;
            color: #5a6a7a;
            margin-bottom: 0.8rem;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: auto;
            padding-top: 0.6rem;
            border-top: 1px solid var(--border-light);
        }
        .card-meta .tag {
            display: inline-block;
            background: rgba(240,165,0,0.1);
            color: var(--accent-gold);
            padding: 0.15rem 0.7rem;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 600;
        }
        .card-meta i { margin-right: 0.2rem; }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            gap: 1.5rem;
            grid-template-columns: repeat(2, 1fr);
        }
        .category-card {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.8rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-gold);
        }
        .category-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: rgba(240,165,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-gold);
            flex-shrink: 0;
        }
        .category-card .info h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.2rem;
        }
        .category-card .info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===== 数据/流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .step-item {
            text-align: center;
            padding: 2rem 1rem;
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .step-item:hover {
            background: rgba(255,255,255,0.08);
            border-color: var(--accent-gold);
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent-gold);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
        }
        .step-item h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 0.4rem;
        }
        .step-item p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 0.8rem;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent-gold);
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 0.8rem;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            color: var(--text-dark);
        }
        .faq-question i {
            color: var(--accent-gold);
            font-size: 1.1rem;
            width: 1.4rem;
        }
        .faq-question .arrow {
            margin-left: auto;
            transition: transform 0.3s;
            color: var(--text-muted);
        }
        .faq-question[aria-expanded="true"] .arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.92rem;
            color: #5a6a7a;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }
        .faq-answer p:last-child { margin-bottom: 0; }

        /* ===== CTA ===== */
        .cta-section {
            text-align: center;
            padding: 4rem 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-mid));
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2.2rem;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 2rem;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: var(--text-muted);
            padding: 3rem 0 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 0.6rem;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            max-width: 300px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 0.3rem 0;
        }
        .footer-col a:hover { color: var(--accent-gold); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.8rem;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--accent-gold); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
            }
            .hero { padding: 3rem 0 3rem; min-height: auto; }
            .hero h1 { font-size: 2rem; }
            .hero .lead { font-size: 1rem; }
            .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
            .hero-stats .stat-number { font-size: 1.4rem; }
            .card-grid-3 { grid-template-columns: 1fr; }
            .card-grid-2 { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .section { padding: 2.5rem 0; }
            .section-title h2 { font-size: 1.5rem; }
            .cta-section h2 { font-size: 1.6rem; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 1rem; }
            .hero h1 { font-size: 1.6rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .card-body { padding: 1rem 1.2rem 1.2rem; }
            .category-card { padding: 1rem 1.2rem; }
            .faq-question { padding: 1rem 1.2rem; font-size: 0.92rem; }
        }

        /* ===== 覆盖 Foundation 默认 ===== */
        .grid-container { max-width: 1200px; padding: 0 1.5rem; }
        .grid-x { margin: 0; }

        /* ===== 文章列表特殊 ===== */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .post-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.5rem;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 1.2rem;
        }
        .post-item:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-card);
        }
        .post-item .post-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .post-item .post-info {
            flex: 1;
        }
        .post-item .post-info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.2rem;
        }
        .post-item .post-info h4 a { color: var(--text-dark); }
        .post-item .post-info h4 a:hover { color: var(--accent-gold); }
        .post-item .post-info .meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .post-item .post-info .meta .tag {
            background: rgba(240,165,0,0.1);
            color: var(--accent-gold);
            padding: 0.1rem 0.6rem;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 600;
        }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 2.5rem 1rem;
            color: var(--text-muted);
        }
        .empty-state i {
            font-size: 3rem;
            color: var(--border-light);
            margin-bottom: 1rem;
        }
        .empty-state p { font-size: 1rem; }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #457b9d;
            --secondary-dark: #1d3557;
            --accent: #f4a261;
            --bg-dark: #0a0e17;
            --bg-card: #111827;
            --bg-surface: #1a2235;
            --bg-elevated: #1f2a40;
            --text-light: #f1f5f9;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(230, 57, 70, 0.25);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(230, 57, 70, 0.15);
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 240px;
            --header-height: 0px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { font-size: 16px; scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.3; color: var(--text-light); }
        p { margin-bottom: 1rem; color: var(--text-muted); }
        strong { color: var(--text-light); font-weight: 600; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }
        .section-title { font-size: 2rem; margin-bottom: 0.5rem; letter-spacing: -0.02em; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-muted); margin-bottom: 2.5rem; max-width: 600px; }
        .text-center { text-align: center; }
        .text-gradient { background: linear-gradient(135deg, var(--primary-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

        /* ===== App Shell Layout ===== */
        .app-shell {
            display: flex;
            width: 100%;
            min-height: 100vh;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-card);
            border-right: 1px solid var(--border-color);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 24px 0;
            overflow-y: auto;
            transition: var(--transition);
        }
        .sidebar-logo {
            padding: 0 20px 28px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 20px;
        }
        .sidebar-logo .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.02em;
        }
        .sidebar-logo .logo i { color: var(--primary); font-size: 1.5rem; }
        .sidebar-logo .logo span { background: linear-gradient(135deg, var(--primary-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .sidebar-nav { flex: 1; padding: 0 12px; }
        .nav-section-title {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--text-dim);
            padding: 8px 12px 6px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            margin-bottom: 2px;
            position: relative;
        }
        .sidebar-nav a i { width: 20px; text-align: center; font-size: 1rem; color: var(--text-dim); transition: var(--transition); }
        .sidebar-nav a:hover { background: rgba(255, 255, 255, 0.05); color: var(--text-light); }
        .sidebar-nav a:hover i { color: var(--primary-light); }
        .sidebar-nav a.active {
            background: rgba(230, 57, 70, 0.12);
            color: var(--primary-light);
            box-shadow: inset 3px 0 0 var(--primary);
        }
        .sidebar-nav a.active i { color: var(--primary-light); }

        /* ===== Main Content Area ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content-inner { flex: 1; }

        /* ===== Article Hero / Banner ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, rgba(10, 14, 23, 0.95), rgba(26, 34, 53, 0.9)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-dark), transparent);
            pointer-events: none;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: var(--text-muted); }
        .article-breadcrumb a:hover { color: var(--primary-light); }
        .article-breadcrumb .sep { color: var(--text-dim); }
        .article-breadcrumb .current { color: var(--text-light); }
        .article-category-badge {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(230, 57, 70, 0.15);
            border: 1px solid rgba(230, 57, 70, 0.25);
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary-light);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .article-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.03em;
            max-width: 900px;
            background: linear-gradient(135deg, #f1f5f9, #94a3b8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-dim);
        }
        .article-meta span { display: flex; align-items: center; gap: 6px; }
        .article-meta i { color: var(--primary); font-size: 0.8rem; }
        .article-meta .category { color: var(--accent); font-weight: 500; }

        /* ===== Article Body ===== */
        .article-section { padding: 60px 0 80px; }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 50px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-muted);
        }
        .article-body .content p { margin-bottom: 1.5rem; }
        .article-body .content h2 { font-size: 1.6rem; margin-top: 2.5rem; margin-bottom: 1rem; color: var(--text-light); }
        .article-body .content h3 { font-size: 1.25rem; margin-top: 2rem; margin-bottom: 0.75rem; color: var(--text-light); }
        .article-body .content ul, .article-body .content ol { margin-bottom: 1.5rem; padding-left: 1.5rem; }
        .article-body .content li { margin-bottom: 0.5rem; list-style: disc; color: var(--text-muted); }
        .article-body .content blockquote {
            border-left: 3px solid var(--primary);
            padding: 16px 24px;
            margin: 1.5rem 0;
            background: rgba(230, 57, 70, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-body .content img { border-radius: var(--radius-sm); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
        .article-body .content a { color: var(--primary-light); text-decoration: underline; text-underline-offset: 2px; }
        .article-body .content a:hover { color: var(--accent); }
        .article-not-found {
            text-align: center;
            padding: 80px 40px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }
        .article-not-found i { font-size: 3rem; color: var(--text-dim); margin-bottom: 20px; }
        .article-not-found h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .article-not-found p { color: var(--text-muted); margin-bottom: 24px; }
        .article-not-found .btn-back { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; background: var(--primary); color: #fff; border-radius: var(--radius-sm); font-weight: 600; transition: var(--transition); }
        .article-not-found .btn-back:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-glow); }

        /* ===== Sidebar Article Info ===== */
        .article-sidebar { position: sticky; top: 30px; align-self: start; }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-color);
            margin-bottom: 24px;
        }
        .sidebar-card h4 { font-size: 1rem; font-weight: 600; margin-bottom: 16px; color: var(--text-light); display: flex; align-items: center; gap: 8px; }
        .sidebar-card h4 i { color: var(--primary); font-size: 0.9rem; }
        .sidebar-card .info-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border-color); font-size: 0.85rem; }
        .sidebar-card .info-row:last-child { border-bottom: none; }
        .sidebar-card .info-label { color: var(--text-dim); }
        .sidebar-card .info-value { color: var(--text-light); font-weight: 500; }
        .sidebar-card .info-value.category { color: var(--accent); }
        .sidebar-card .tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
        .sidebar-card .tag {
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            font-size: 0.75rem;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .sidebar-card .tag:hover { background: rgba(230, 57, 70, 0.1); border-color: rgba(230, 57, 70, 0.3); color: var(--primary-light); }
        .sidebar-cta {
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.12), rgba(69, 123, 157, 0.08));
            border: 1px solid rgba(230, 57, 70, 0.2);
            border-radius: var(--radius-md);
            padding: 28px;
            text-align: center;
        }
        .sidebar-cta h4 { font-size: 1.1rem; margin-bottom: 8px; }
        .sidebar-cta p { font-size: 0.85rem; margin-bottom: 18px; color: var(--text-dim); }
        .sidebar-cta .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .sidebar-cta .btn-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); color: #fff; }

        /* ===== Related Articles ===== */
        .related-section { padding: 60px 0 80px; border-top: 1px solid var(--border-color); }
        .related-section .section-title { font-size: 1.6rem; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(230, 57, 70, 0.2); }
        .related-card .card-img {
            height: 180px;
            background: var(--bg-surface);
            position: relative;
            overflow: hidden;
        }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
        .related-card .card-body h3 a { color: var(--text-light); }
        .related-card .card-body h3 a:hover { color: var(--primary-light); }
        .related-card .card-body p { font-size: 0.85rem; color: var(--text-dim); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-meta { display: flex; align-items: center; gap: 12px; margin-top: 12px; font-size: 0.75rem; color: var(--text-dim); }
        .related-card .card-meta .cat { color: var(--accent); font-weight: 500; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
            margin-top: auto;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { font-size: 1.2rem; font-weight: 800; display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
        .footer-brand .logo i { color: var(--primary); }
        .footer-brand p { font-size: 0.85rem; color: var(--text-dim); max-width: 360px; line-height: 1.7; }
        .footer-col h4 { font-size: 0.85rem; font-weight: 600; color: var(--text-light); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.05em; }
        .footer-col a { display: block; font-size: 0.85rem; color: var(--text-dim); padding: 4px 0; transition: var(--transition); }
        .footer-col a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-dim);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--primary-light); }

        /* ===== Mobile Overlay & Toggle ===== */
        .sidebar-toggle {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--text-light);
            font-size: 1.2rem;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .sidebar-toggle:hover { background: var(--bg-surface); border-color: rgba(230, 57, 70, 0.3); }
        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .sidebar-overlay.active { opacity: 1; }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 30px; }
            .article-sidebar { position: static; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
        }
        @media screen and (max-width: 768px) {
            .sidebar { transform: translateX(-100%); }
            .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }
            .sidebar-overlay { display: block; }
            .sidebar-overlay.active { display: block; }
            .sidebar-toggle { display: flex; }
            .main-content { margin-left: 0; }
            .article-hero { padding: 60px 0 40px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-body { padding: 24px; }
            .article-section { padding: 40px 0; }
            .related-section { padding: 40px 0; }
            .related-grid { grid-template-columns: 1fr; gap: 16px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section-title { font-size: 1.5rem; }
            .sidebar-logo .logo { font-size: 1.15rem; }
            .sidebar-nav a { padding: 10px 14px; font-size: 0.85rem; }
        }
        @media screen and (max-width: 520px) {
            .article-hero h1 { font-size: 1.4rem; }
            .article-body { padding: 16px; }
            .article-meta { gap: 12px; font-size: 0.75rem; }
            .article-breadcrumb { font-size: 0.75rem; }
            .container { padding: 0 16px; }
            .related-card .card-img { height: 140px; }
            .sidebar-card { padding: 20px; }
            .sidebar-cta { padding: 20px; }
        }
        @media screen and (min-width: 769px) {
            .sidebar { transform: translateX(0); }
            .sidebar-overlay { display: none !important; }
        }

        /* ===== Transitions ===== */
        .sidebar, .sidebar-overlay, .main-content { transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease; }
        .related-card, .sidebar-card, .sidebar-cta { transition: var(--transition); }
        ::selection { background: rgba(230, 57, 70, 0.3); color: var(--text-light); }
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-dark); }
        ::-webkit-scrollbar-thumb { background: var(--text-dim); border-radius: 3px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b0f1e;
            --primary-light: #141a2e;
            --primary-mid: #1c2440;
            --accent-gold: #d4a843;
            --accent-gold-light: #f0d078;
            --accent-gold-dark: #b8922e;
            --accent-blue: #4a7cf7;
            --accent-purple: #7c5cfc;
            --text-white: #f0f2f8;
            --text-light: #c8cde0;
            --text-muted: #8a90a8;
            --border-color: rgba(212, 168, 67, 0.25);
            --border-light: rgba(255, 255, 255, 0.06);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5), 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-glow: 0 0 40px rgba(212, 168, 67, 0.15);
            --shadow-btn: 0 4px 20px rgba(212, 168, 67, 0.3);
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --sidebar-width: 240px;
            --sidebar-collapsed: 68px;
            --header-height: 0px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-body);
            background: var(--primary);
            color: var(--text-light);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
        }
        a { color: var(--accent-gold); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent-gold-light); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            color: var(--text-white);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }
        p { margin-bottom: 1rem; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }

        /* ===== 左侧导航 ===== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: linear-gradient(180deg, #0a0e1a 0%, #12182a 100%);
            border-right: 1px solid var(--border-color);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 28px 0 20px;
            transition: transform var(--transition), width var(--transition);
            overflow-y: auto;
            overflow-x: hidden;
        }
        .app-sidebar::-webkit-scrollbar { width: 4px; }
        .app-sidebar::-webkit-scrollbar-thumb { background: var(--accent-gold-dark); border-radius: 4px; }
        .app-sidebar::-webkit-scrollbar-track { background: transparent; }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 20px 24px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 20px;
        }
        .sidebar-brand .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            flex-shrink: 0;
            box-shadow: 0 0 30px rgba(212, 168, 67, 0.2);
        }
        .sidebar-brand .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.2;
        }
        .sidebar-brand .brand-text span { color: var(--accent-gold); }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 0 12px;
            flex: 1;
        }
        .nav-section-title {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--text-muted);
            padding: 16px 12px 8px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-weight: 500;
            font-size: 15px;
            transition: all var(--transition);
            position: relative;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 17px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .sidebar-nav a:hover {
            background: rgba(212, 168, 67, 0.08);
            color: var(--text-light);
        }
        .sidebar-nav a:hover i { color: var(--accent-gold); }
        .sidebar-nav a.active {
            background: linear-gradient(135deg, rgba(212, 168, 67, 0.15), rgba(212, 168, 67, 0.04));
            color: var(--accent-gold);
            border: 1px solid rgba(212, 168, 67, 0.2);
            box-shadow: 0 0 20px rgba(212, 168, 67, 0.05);
        }
        .sidebar-nav a.active i { color: var(--accent-gold); }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent-gold);
            border-radius: 0 4px 4px 0;
            box-shadow: 0 0 12px rgba(212, 168, 67, 0.4);
        }

        .sidebar-footer {
            padding: 16px 20px 0;
            border-top: 1px solid var(--border-color);
            margin-top: 12px;
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }

        /* ===== 主内容区 ===== */
        .app-main {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            background: var(--primary);
            position: relative;
            transition: margin-left var(--transition);
        }

        /* ===== 移动端菜单按钮 ===== */
        .mobile-toggle {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            background: var(--primary-mid);
            border: 1px solid var(--border-color);
            color: var(--text-white);
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            font-size: 20px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
        }
        .mobile-toggle:hover { background: var(--accent-gold-dark); color: var(--primary); }
        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.7);
            z-index: 999;
            backdrop-filter: blur(4px);
        }

        /* ===== Hero 区域 ===== */
        .category-hero {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, rgba(11,15,30,0.92), rgba(20,26,46,0.88)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--primary), transparent);
        }
        .category-hero .container { position: relative; z-index: 2; }
        .category-hero h1 {
            font-size: clamp(2.4rem, 6vw, 4rem);
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold), var(--accent-gold-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
        }
        .category-hero p {
            font-size: clamp(1.05rem, 2vw, 1.3rem);
            color: var(--text-light);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-tags .tag {
            padding: 6px 18px;
            background: rgba(212, 168, 67, 0.12);
            border: 1px solid rgba(212, 168, 67, 0.2);
            border-radius: 30px;
            font-size: 13px;
            color: var(--accent-gold-light);
            font-weight: 500;
            backdrop-filter: blur(4px);
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 72px 0;
            position: relative;
        }
        .section-block.alt-bg {
            background: var(--primary-light);
        }
        .section-block.dark-bg {
            background: linear-gradient(180deg, var(--primary) 0%, #080c1a 100%);
        }
        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-white);
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .section-title-center {
            text-align: center;
        }
        .section-subtitle-center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 分类简介 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-content h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            margin-bottom: 16px;
        }
        .intro-content p {
            color: var(--text-light);
            font-size: 1.05rem;
            margin-bottom: 16px;
        }
        .intro-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--primary-mid);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 16px;
            text-align: center;
            transition: all var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(212, 168, 67, 0.3);
        }
        .stat-card .number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ===== 游戏卡片网格 ===== */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .game-card {
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            cursor: pointer;
            position: relative;
        }
        .game-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card), var(--shadow-glow);
            border-color: rgba(212, 168, 67, 0.3);
        }
        .game-card .card-image {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            transition: transform 0.6s ease;
        }
        .game-card:hover .card-image { transform: scale(1.05); }
        .game-card .card-body {
            padding: 20px;
        }
        .game-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-white);
        }
        .game-card .card-body .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin: 8px 0 12px;
        }
        .game-card .card-body .meta .badge {
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
            background: rgba(212, 168, 67, 0.12);
            color: var(--accent-gold-light);
            border: 1px solid rgba(212, 168, 67, 0.15);
        }
        .game-card .card-body .meta .badge.type-rpg { background: rgba(74, 124, 247, 0.15); color: #7aa2f7; border-color: rgba(74,124,247,0.2); }
        .game-card .card-body .meta .badge.type-strategy { background: rgba(124, 92, 252, 0.15); color: #a68cff; border-color: rgba(124,92,252,0.2); }
        .game-card .card-body .meta .badge.type-action { background: rgba(247, 74, 74, 0.15); color: #f77a7a; border-color: rgba(247,74,74,0.2); }
        .game-card .card-body .desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .game-card .card-footer {
            padding: 12px 20px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .game-card .card-footer .rating {
            color: var(--accent-gold);
            font-size: 13px;
            font-weight: 600;
        }
        .game-card .card-footer .play-btn {
            padding: 6px 18px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: var(--primary);
            font-weight: 700;
            font-size: 13px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
        }
        .game-card .card-footer .play-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 0 30px rgba(212, 168, 67, 0.3);
        }

        /* ===== 特色 / 数据 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .feature-item {
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(212, 168, 67, 0.25);
        }
        .feature-item .icon {
            font-size: 2.2rem;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }
        .feature-item h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== 玩家推荐 ===== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .review-card {
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all var(--transition);
        }
        .review-card:hover {
            border-color: rgba(212, 168, 67, 0.2);
            box-shadow: var(--shadow-card);
        }
        .review-card .stars {
            color: var(--accent-gold);
            font-size: 14px;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }
        .review-card blockquote {
            font-size: 0.95rem;
            color: var(--text-light);
            font-style: italic;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .review-card .author {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-white);
        }
        .review-card .author span {
            color: var(--text-muted);
            font-weight: 400;
            font-size: 13px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(212, 168, 67, 0.2);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text-white);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }
        .faq-item .faq-question:hover { color: var(--accent-gold); }
        .faq-item .faq-question i { transition: transform var(--transition); color: var(--accent-gold); font-size: 14px; }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(212,168,67,0.08), rgba(212,168,67,0.02)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 80px 0;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11,15,30,0.7);
            backdrop-filter: blur(2px);
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 540px;
            margin: 0 auto 32px;
        }
        .btn-cta {
            display: inline-block;
            padding: 16px 48px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: var(--primary);
            font-weight: 700;
            font-size: 1.1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: var(--shadow-btn);
        }
        .btn-cta:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 8px 40px rgba(212, 168, 67, 0.4);
            color: var(--primary);
        }

        /* ===== 分页 ===== */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .pagination-wrap a, .pagination-wrap span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            color: var(--text-light);
            font-weight: 500;
            font-size: 15px;
            transition: all var(--transition);
        }
        .pagination-wrap a:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(212,168,67,0.08);
        }
        .pagination-wrap .current {
            background: var(--accent-gold);
            color: var(--primary);
            border-color: var(--accent-gold);
            font-weight: 700;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-light);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand .logo i { color: var(--accent-gold); }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-muted);
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--accent-gold); }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--accent-gold); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .game-grid { grid-template-columns: repeat(2, 1fr); }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .intro-grid { grid-template-columns: 1fr; gap: 32px; }
            .intro-stats { grid-template-columns: repeat(3, 1fr); }
        }

        @media (max-width: 768px) {
            .app-sidebar {
                transform: translateX(-100%);
                width: 280px;
            }
            .app-sidebar.open { transform: translateX(0); }
            .app-main { margin-left: 0; }
            .mobile-toggle { display: flex; }
            .mobile-overlay.open { display: block; }

            .category-hero { padding: 80px 0 60px; }
            .section-block { padding: 48px 0; }
            .game-grid { grid-template-columns: 1fr; }
            .review-grid { grid-template-columns: 1fr; }
            .features-grid { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: 1fr; }

            .stat-card .number { font-size: 1.5rem; }
            .category-hero h1 { font-size: 2rem; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .features-grid { grid-template-columns: 1fr; }
            .intro-stats { grid-template-columns: 1fr; }
            .hero-tags .tag { font-size: 12px; padding: 4px 14px; }
            .game-card .card-image { height: 180px; }
            .cta-section { padding: 60px 0; }
            .btn-cta { padding: 14px 32px; font-size: 1rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .pagination-wrap a, .pagination-wrap span { width: 38px; height: 38px; font-size: 14px; }
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar { width: 6px; height: 6px; }
        ::-webkit-scrollbar-track { background: var(--primary); }
        ::-webkit-scrollbar-thumb { background: var(--primary-mid); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--accent-gold-dark); }

        /* ===== 选择文本 ===== */
        ::selection { background: rgba(212, 168, 67, 0.3); color: var(--text-white); }

/* roulang page: category2 */
:root {
            --primary: #e63946;
            --primary-dark: #b71c1c;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2d4a7a;
            --accent: #f4a261;
            --accent-light: #f9c784;
            --bg-dark: #0f1923;
            --bg-card: #1a2836;
            --bg-card-hover: #1f3040;
            --bg-section: #14212e;
            --text-primary: #f1faee;
            --text-secondary: #a8c4d8;
            --text-muted: #6b8fa0;
            --border-color: #2a3f50;
            --border-light: #3a5568;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.6);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 240px;
            --header-height: 0px;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 侧边栏 ===== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-card);
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            padding: 28px 0 20px;
            overflow-y: auto;
            transition: var(--transition);
        }

        .sidebar-logo {
            padding: 0 24px 24px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .sidebar-logo .logo-icon {
            font-size: 28px;
            color: var(--primary);
        }

        .sidebar-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .sidebar-logo .logo-text span {
            color: var(--primary);
        }

        .sidebar-nav {
            padding: 0 12px;
            flex: 1;
        }

        .nav-section-title {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--text-muted);
            padding: 12px 14px 8px;
            font-weight: 600;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            margin-bottom: 2px;
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .sidebar-nav a:hover {
            background: rgba(230, 57, 70, 0.08);
            color: var(--text-primary);
        }
        .sidebar-nav a:hover i {
            color: var(--primary-light);
        }

        .sidebar-nav a.active {
            background: rgba(230, 57, 70, 0.15);
            color: var(--primary-light);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--primary);
        }
        .sidebar-nav a.active i {
            color: var(--primary);
        }

        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .page-banner {
            position: relative;
            padding: 80px 40px 70px;
            background: linear-gradient(135deg, rgba(15, 25, 35, 0.92), rgba(26, 40, 54, 0.85)),
                url(/assets/images/backpic/back-2.png) center center / cover no-repeat;
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }

        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .page-banner h1 i {
            color: var(--primary);
            margin-right: 12px;
        }

        .page-banner p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .breadcrumb .sep {
            color: var(--border-light);
        }
        .breadcrumb .current {
            color: var(--primary-light);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 70px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 44px;
            max-width: 600px;
            line-height: 1.7;
        }

        .text-center {
            text-align: center;
        }
        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .card-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .card-item:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-hover);
            background: var(--bg-card-hover);
        }

        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            border-bottom: 1px solid var(--border-color);
        }

        .card-body {
            padding: 24px 22px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body .badge {
            display: inline-block;
            background: rgba(230, 57, 70, 0.18);
            color: var(--primary-light);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            align-self: flex-start;
            border: 1px solid rgba(230, 57, 70, 0.25);
        }

        .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card-body p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
            margin-top: auto;
        }

        .card-body .card-meta i {
            margin-right: 4px;
        }

        .card-body .btn-text {
            color: var(--primary-light);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 12px;
            transition: var(--transition);
        }

        .card-body .btn-text:hover {
            gap: 14px;
            color: var(--accent);
        }

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

        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 32px 24px 28px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

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

        .step-card .step-num {
            counter-increment: step;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.12);
            width: 40px;
            height: 40px;
            line-height: 40px;
            border-radius: 50%;
            margin: 0 auto 18px;
            border: 1px solid rgba(230, 57, 70, 0.2);
        }

        .step-card .step-icon {
            font-size: 36px;
            color: var(--primary-light);
            margin-bottom: 16px;
            display: block;
        }

        .step-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            padding: 22px 28px;
            margin-bottom: 14px;
            transition: var(--transition);
        }

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

        .faq-item .faq-q {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
        }

        .faq-item .faq-q i {
            color: var(--primary);
            font-size: 14px;
            width: 20px;
        }

        .faq-item .faq-q .toggle {
            margin-left: auto;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .faq-item .faq-a {
            padding-top: 14px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid var(--border-color);
            margin-top: 14px;
            display: none;
        }

        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item.open .toggle {
            transform: rotate(180deg);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.12), rgba(29, 53, 87, 0.2)),
                url(/assets/images/backpic/back-3.png) center center / cover no-repeat;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 70px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
        }

        .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(230, 57, 70, 0.45);
            color: #fff;
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border: 2px solid var(--border-light);
        }
        .btn-secondary:hover {
            border-color: var(--primary-light);
            color: var(--primary-light);
            transform: translateY(-2px);
            background: rgba(230, 57, 70, 0.06);
        }

        .btn-sm {
            padding: 10px 24px;
            font-size: 14px;
        }

        /* ===== 工具/资源列表 ===== */
        .resource-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .resource-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            padding: 22px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: var(--transition);
        }

        .resource-item:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }

        .resource-item .r-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(230, 57, 70, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary-light);
            flex-shrink: 0;
            border: 1px solid rgba(230, 57, 70, 0.15);
        }

        .resource-item .r-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

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

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 20px;
        }

        .tag {
            display: inline-block;
            padding: 8px 22px;
            border-radius: 50px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .tag:hover {
            background: rgba(230, 57, 70, 0.1);
            border-color: var(--primary);
            color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 50px 0 30px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 5px 0;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-secondary);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-banner {
                padding: 60px 28px 50px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
        }

        @media (max-width: 768px) {
            .app-sidebar {
                width: 100%;
                height: auto;
                position: relative;
                flex-direction: row;
                padding: 12px 16px;
                border-right: none;
                border-bottom: 1px solid var(--border-color);
                align-items: center;
                overflow: visible;
            }

            .sidebar-logo {
                padding: 0;
                border-bottom: none;
                margin-bottom: 0;
                flex-shrink: 0;
            }

            .sidebar-logo .logo-text {
                font-size: 17px;
            }
            .sidebar-logo .logo-icon {
                font-size: 22px;
            }

            .sidebar-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--bg-card);
                border-bottom: 1px solid var(--border-color);
                padding: 12px 16px;
                flex-direction: column;
                box-shadow: var(--shadow);
                z-index: 999;
            }

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

            .nav-section-title {
                display: none;
            }

            .mobile-menu-toggle {
                display: flex !important;
                margin-left: auto;
                font-size: 24px;
                color: var(--text-primary);
                background: none;
                border: none;
                cursor: pointer;
                padding: 4px 8px;
            }

            .main-content {
                margin-left: 0;
            }

            .page-banner {
                padding: 44px 20px 36px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 15px;
            }

            .container {
                padding: 0 20px;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 32px;
            }

            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .resource-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
            .faq-item {
                padding: 18px 18px;
            }
            .faq-item .faq-q {
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 24px;
            }
            .page-banner p {
                font-size: 14px;
            }
            .section-title {
                font-size: 22px;
            }
            .card-body {
                padding: 18px 16px 20px;
            }
            .card-body h3 {
                font-size: 17px;
            }
            .step-card {
                padding: 24px 16px 20px;
            }
            .resource-item {
                padding: 16px 18px;
                flex-direction: column;
                text-align: center;
            }
            .resource-item .r-icon {
                margin-bottom: 4px;
            }
            .tag-cloud {
                gap: 8px;
            }
            .tag {
                font-size: 12px;
                padding: 6px 16px;
            }
        }

        /* 移动端菜单按钮（默认隐藏） */
        .mobile-menu-toggle {
            display: none;
        }

        /* 滚动条 */
        .app-sidebar::-webkit-scrollbar {
            width: 4px;
        }
        .app-sidebar::-webkit-scrollbar-track {
            background: transparent;
        }
        .app-sidebar::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 4px;
        }

        /* ===== 表格样式 (如有) ===== */
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        table th {
            background: rgba(230, 57, 70, 0.08);
            color: var(--text-primary);
            font-weight: 600;
            padding: 14px 20px;
            text-align: left;
            border-bottom: 2px solid var(--border-color);
        }

        table td {
            padding: 12px 20px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-secondary);
        }

        table tr:last-child td {
            border-bottom: none;
        }

        table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }

        /* ===== 徽章行 ===== */
        .badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin: 16px 0 8px;
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .badge-pill i {
            color: var(--primary-light);
            font-size: 12px;
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            margin: 16px auto 20px;
        }

        .divider-left {
            margin: 16px 0 20px;
        }