/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #FF6B00;
            --primary-light: #FF8C38;
            --primary-dark: #CC5500;
            --secondary: #7C3AED;
            --secondary-light: #A78BFA;
            --accent: #F59E0B;
            --bg-dark: #0A0A0F;
            --bg-card: #13131A;
            --bg-card-hover: #1A1A26;
            --bg-section: #0F0F18;
            --bg-elevated: #1C1C2E;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B0C0;
            --text-muted: #6B6B80;
            --border-color: #2A2A3E;
            --border-light: #3A3A50;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 40px rgba(255,107,0,0.15);
            --shadow-btn: 0 4px 20px rgba(255,107,0,0.35);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1280px;
            --header-height: 76px;
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: clamp(2.2rem, 6vw, 4.2rem); }
        h2 { font-size: clamp(1.6rem, 4vw, 2.8rem); }
        h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
        h4 { font-size: clamp(1rem, 2vw, 1.35rem); }
        p { color: var(--text-secondary); margin-bottom: 1rem; }
        ::selection { background: var(--primary); color: #fff; }
        :focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== 玻璃效果公用 ===== */
        .glass {
            background: rgba(19, 19, 26, 0.72);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border-color);
        }

        /* ===== 头部 / 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(10, 10, 15, 0.85);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(42, 42, 62, 0.5);
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(10, 10, 15, 0.96);
            box-shadow: 0 4px 30px rgba(0,0,0,0.5);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100%;
            position: relative;
        }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .nav-left { justify-content: flex-start; }
        .nav-right { justify-content: flex-end; }
        .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-link:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
        .nav-link.active {
            color: var(--primary);
            background: rgba(255,107,0,0.12);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px 4px 0 0;
        }
        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            padding: 0 24px;
            flex-shrink: 0;
            white-space: nowrap;
        }
        .logo:hover { opacity: 0.9; }
        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: var(--shadow-btn);
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255,107,0,0.5);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
        }
        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .menu-toggle.active span:nth-child(2) { opacity: 0; }
        .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        @media (max-width: 768px) {
            .header .container { justify-content: space-between; padding: 0 16px; }
            .nav-left, .nav-right {
                display: none;
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(10,10,15,0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 32px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 20px 60px rgba(0,0,0,0.6);
            }
            .nav-left.open, .nav-right.open { display: flex; }
            .nav-left { align-items: stretch; }
            .nav-right { align-items: stretch; }
            .nav-link {
                padding: 14px 20px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .nav-link.active::after { display: none; }
            .nav-cta { text-align: center; }
            .logo { font-size: 1.3rem; padding: 0; }
            .menu-toggle { display: flex; }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            padding: 120px 0 80px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10,10,15,0.3) 0%, rgba(10,10,15,0.85) 60%, var(--bg-dark) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at 30% 50%, rgba(255,107,0,0.08) 0%, transparent 60%),
                        radial-gradient(ellipse at 70% 50%, rgba(124,58,237,0.06) 0%, transparent 60%);
            pointer-events: none;
            z-index: 0;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 100px;
            background: rgba(255,107,0,0.15);
            border: 1px solid rgba(255,107,0,0.25);
            color: var(--primary-light);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 28px;
            letter-spacing: 0.3px;
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero h1 {
            margin-bottom: 20px;
            background: linear-gradient(180deg, #fff 30%, rgba(255,255,255,0.7));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero h1 span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 40px rgba(255,107,0,0.45);
            color: #fff;
        }
        .btn-secondary {
            background: rgba(255,255,255,0.06);
            color: var(--text-primary);
            border: 1px solid var(--border-color);
            backdrop-filter: blur(8px);
        }
        .btn-secondary:hover {
            background: rgba(255,255,255,0.12);
            color: var(--text-primary);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 60px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .hero { padding: 100px 0 60px; }
            .hero-stats { gap: 24px; }
            .hero-stat-number { font-size: 1.6rem; }
        }
        @media (max-width: 520px) {
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 16px; }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
            position: relative;
        }
        .section-dark { background: var(--bg-section); }
        .section-card { background: var(--bg-card); }
        .section-title {
            text-align: center;
            margin-bottom: 16px;
        }
        .section-sub {
            text-align: center;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 48px;
            font-size: 1.05rem;
        }
        .section-label {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 100px;
            background: rgba(255,107,0,0.1);
            border: 1px solid rgba(255,107,0,0.15);
            color: var(--primary-light);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        @media (max-width: 768px) { .section { padding: 56px 0; } }

        /* ===== 特色卡片网格 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            border-color: var(--border-light);
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
            background: var(--bg-card-hover);
        }
        .feature-card:hover::before { opacity: 1; }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 20px;
            background: rgba(255,107,0,0.12);
            color: var(--primary);
        }
        .feature-card:nth-child(2) .feature-icon { background: rgba(124,58,237,0.12); color: var(--secondary-light); }
        .feature-card:nth-child(3) .feature-icon { background: rgba(245,158,11,0.12); color: var(--accent); }
        .feature-card h3 { margin-bottom: 12px; font-size: 1.25rem; }
        .feature-card p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 0; }
        @media (max-width: 1024px) { .features-grid { gap: 20px; } }
        @media (max-width: 768px) { .features-grid { grid-template-columns: 1fr; gap: 16px; } }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            min-height: 200px;
            display: flex;
            align-items: center;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: var(--border-light);
        }
        .category-card img {
            width: 40%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .category-info {
            padding: 28px 32px;
            flex: 1;
        }
        .category-info h3 { margin-bottom: 8px; font-size: 1.3rem; }
        .category-info p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 16px; }
        .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 100px;
            background: rgba(255,107,0,0.1);
            color: var(--primary-light);
            font-size: 0.8rem;
            font-weight: 600;
        }
        @media (max-width: 768px) { .category-grid { grid-template-columns: 1fr; } }
        @media (max-width: 520px) {
            .category-card { flex-direction: column; }
            .category-card img { width: 100%; height: 180px; }
            .category-info { padding: 20px; }
        }

        /* ===== 最新资讯 / CMS 列表 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: var(--border-light);
        }
        .news-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .news-body {
            padding: 24px 24px 28px;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-meta .badge {
            padding: 2px 12px;
            border-radius: 100px;
            background: rgba(124,58,237,0.12);
            color: var(--secondary-light);
            font-weight: 600;
            font-size: 0.75rem;
        }
        .news-body h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-body h3 a { color: var(--text-primary); }
        .news-body h3 a:hover { color: var(--primary-light); }
        .news-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-color);
        }
        .news-empty i { font-size: 2.4rem; margin-bottom: 16px; opacity: 0.4; }
        @media (max-width: 768px) { .news-grid { grid-template-columns: 1fr; } }

        /* ===== 数据统计板块 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 20px;
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .stat-card .stat-icon {
            font-size: 1.8rem;
            color: var(--primary-light);
            margin-bottom: 12px;
            opacity: 0.6;
        }
        @media (max-width: 1024px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .stats-grid { grid-template-columns: 1fr; } }

        /* ===== 评价 / 社区声音 ===== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: var(--transition);
        }
        .review-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .review-stars {
            color: var(--accent);
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }
        .review-card blockquote {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .review-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
        }
        .review-author-info strong { display: block; font-size: 0.9rem; }
        .review-author-info span { font-size: 0.8rem; color: var(--text-muted); }
        @media (max-width: 1024px) { .review-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .review-grid { grid-template-columns: 1fr; } }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border-light); }
        .faq-question {
            width: 100%;
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary-light); }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 28px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 28px 24px;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(255,107,0,0.08), rgba(124,58,237,0.08));
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .cta-box {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-box h2 { margin-bottom: 16px; }
        .cta-box p { margin-bottom: 32px; font-size: 1.05rem; }
        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
            padding: 56px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { font-size: 1.4rem; padding: 0; margin-bottom: 12px; display: inline-block; }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); max-width: 300px; }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer h4 {
            font-size: 0.95rem;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .footer ul li { margin-bottom: 10px; }
        .footer ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        @media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
        @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } }

        /* ===== 移动端菜单遮罩 ===== */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            z-index: 998;
        }
        .nav-overlay.open { display: block; }
        @media (max-width: 768px) { .nav-overlay.open { display: block; } }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mb-0 { margin-bottom: 0; }
        .mt-8 { margin-top: 8px; }
        .gap-8 { gap: 8px; }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg-dark); }
        ::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }

        /* ===== 实时氛围条 ===== */
        .live-bar {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px 6px 12px;
            border-radius: 100px;
            background: rgba(255,0,0,0.08);
            border: 1px solid rgba(255,0,0,0.15);
            font-size: 0.8rem;
            color: #FF4444;
            font-weight: 600;
        }
        .live-bar .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #FF4444;
            animation: pulse-dot 1.6s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.8); }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #ffb703;
            --secondary-dark: #e09f00;
            --accent: #457b9d;
            --accent-light: #a8dadc;
            --bg-dark: #0d1b2a;
            --bg-darker: #07111e;
            --bg-card: #1b2a3a;
            --bg-card-hover: #243447;
            --surface: #1e2d3d;
            --text-primary: #f1faee;
            --text-secondary: #b0c4de;
            --text-muted: #6c8ba7;
            --border: #2a3f52;
            --border-light: #3d5a73;
            --radius: 14px;
            --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);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --nav-height: 70px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

        body {
            font-family: var(--font);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
        }

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

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

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg-darker); }
        ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(13, 27, 42, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 63, 82, 0.5);
            height: var(--nav-height);
            transition: var(--transition);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }

        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 1px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            transition: var(--transition);
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }
        .logo:hover {
            filter: brightness(1.2);
            transform: translateX(-50%) scale(1.02);
        }

        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.06);
        }
        .nav-link.active {
            color: var(--text-primary);
            background: rgba(230, 57, 70, 0.2);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-link.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link.nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.4);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            z-index: 1001;
        }
        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
        .menu-toggle.active span:nth-child(2) { opacity: 0; }
        .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

        /* ===== Article Main ===== */
        .article-main {
            padding-top: calc(var(--nav-height) + 40px);
            padding-bottom: 60px;
        }

        .article-hero {
            position: relative;
            background: var(--bg-darker);
            padding: 60px 0 40px;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 1;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .article-breadcrumb a:hover { color: var(--primary-light); }
        .article-breadcrumb .sep { color: var(--border); }

        .article-category-badge {
            display: inline-block;
            padding: 4px 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .article-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            color: var(--text-muted);
            font-size: 0.88rem;
            flex-wrap: wrap;
        }
        .article-meta i { margin-right: 5px; color: var(--primary-light); }
        .article-meta span { display: flex; align-items: center; }

        /* ===== Article Content ===== */
        .article-body {
            padding: 40px 0;
        }

        .article-content {
            max-width: 800px;
            margin: 0 auto;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 32px 0 14px;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .article-content h2:first-child { margin-top: 0; }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: var(--secondary);
        }
        .article-content p {
            margin-bottom: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 1.02rem;
        }
        .article-content ul, .article-content ol {
            margin: 12px 0 20px;
            padding-left: 24px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .article-content li { margin-bottom: 6px; }
        .article-content ul li { list-style: disc; }
        .article-content ol li { list-style: decimal; }
        .article-content img {
            border-radius: var(--radius);
            margin: 24px auto;
            box-shadow: var(--shadow);
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(230, 57, 70, 0.08);
            padding: 16px 24px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover { color: var(--secondary); }
        .article-content code {
            background: rgba(255,255,255,0.06);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--secondary);
        }
        .article-content pre {
            background: var(--bg-darker);
            border-radius: var(--radius);
            padding: 20px 24px;
            overflow-x: auto;
            margin: 20px 0;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 0.92rem;
        }

        .article-not-found {
            text-align: center;
            padding: 80px 24px;
            max-width: 600px;
            margin: 0 auto;
        }
        .article-not-found i {
            font-size: 3.5rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: block;
        }
        .article-not-found h2 {
            font-size: 1.6rem;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .article-not-found .btn {
            display: inline-block;
            padding: 12px 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.4);
        }

        /* ===== Related / Bottom CTA ===== */
        .article-footer-cta {
            background: var(--bg-darker);
            padding: 48px 0;
            text-align: center;
            border-top: 1px solid var(--border);
        }
        .article-footer-cta h3 {
            font-size: 1.4rem;
            margin-bottom: 8px;
        }
        .article-footer-cta p {
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .article-footer-cta .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            padding: 12px 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.4);
        }
        .btn-outline {
            padding: 12px 32px;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--text-primary);
            background: rgba(230, 57, 70, 0.08);
        }

        /* ===== Footer (shared) ===== */
        .footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            position: static;
            transform: none;
            display: inline-block;
            margin-bottom: 16px;
            font-size: 1.5rem;
            -webkit-text-fill-color: transparent;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 1.1rem;
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .footer h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer ul li { margin-bottom: 10px; }
        .footer ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .footer ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--text-muted);
            font-size: 0.82rem;
        }
        .footer-bottom i { color: var(--primary-light); margin: 0 4px; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .article-title { font-size: 2rem; }
            .article-content { padding: 32px 28px; }
        }

        @media (max-width: 768px) {
            .nav-left, .nav-right { display: none; }
            .menu-toggle { display: flex; }

            .nav-left.open, .nav-right.open {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(13, 27, 42, 0.98);
                backdrop-filter: blur(20px);
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                z-index: 999;
            }
            .nav-left.open { top: var(--nav-height); }
            .nav-right.open { top: calc(var(--nav-height) + 180px); }
            .nav-left.open .nav-link,
            .nav-right.open .nav-link {
                padding: 12px 16px;
                width: 100%;
                font-size: 1rem;
            }
            .nav-left.open .nav-link.active::after,
            .nav-right.open .nav-link.active::after { bottom: 4px; }

            .article-title { font-size: 1.6rem; }
            .article-content { padding: 24px 18px; border-radius: var(--radius); }
            .article-meta { gap: 12px; font-size: 0.82rem; }
            .article-breadcrumb { font-size: 0.78rem; }

            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }

            .logo { font-size: 1.3rem; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-title { font-size: 1.35rem; }
            .article-content { padding: 18px 14px; }
            .article-content p { font-size: 0.95rem; }
            .article-hero { padding: 40px 0 24px; }
            .article-body { padding: 24px 0; }
            .btn-primary, .btn-outline { padding: 10px 20px; font-size: 0.88rem; }
        }

        /* ===== Loading / Fade ===== */
        .fade-in { animation: fadeIn 0.5s ease forwards; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #E85D2C;
            --primary-dark: #D04A1E;
            --primary-light: #FDE8E0;
            --secondary: #1A1A2E;
            --secondary-light: #2D2D4A;
            --accent: #F5A623;
            --bg: #F8F6F3;
            --bg-card: #FFFFFF;
            --bg-dark: #14141F;
            --text: #1A1A2E;
            --text-light: #6B7280;
            --text-white: #F9FAFB;
            --border: #E5E7EB;
            --border-light: #F3F4F6;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(26, 26, 46, 0.08);
            --shadow-hover: 0 12px 40px rgba(26, 26, 46, 0.16);
            --shadow-lg: 0 20px 60px rgba(26, 26, 46, 0.12);
            --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
            --max-w: 1240px;
            --header-h: 76px;
            --spacer: 80px;
            --spacer-sm: 48px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: var(--radius-xs);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
        }
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--spacer) 0;
        }
        .section-sm {
            padding: var(--spacer-sm) 0;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-link.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
        }
        .nav-link.nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(232, 93, 44, 0.35);
        }
        .nav-link.nav-cta i {
            margin-right: 6px;
        }
        .logo {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .logo:hover {
            color: var(--primary);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
            border-radius: var(--radius-xs);
            transition: var(--transition);
        }
        .menu-toggle span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .menu-toggle:hover span {
            background: var(--primary);
        }
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -6px);
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 4px;
                padding: 12px 0;
            }
            .header .container {
                flex-wrap: wrap;
            }
            .menu-toggle {
                display: flex;
                order: 3;
            }
            .logo {
                order: 2;
                font-size: 1.4rem;
            }
            .nav-left {
                order: 4;
            }
            .nav-right {
                order: 5;
            }
            .nav-left.open,
            .nav-right.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 1.05rem;
                width: 100%;
                text-align: center;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.nav-cta {
                width: 100%;
                text-align: center;
            }
            .header {
                height: auto;
                min-height: var(--header-h);
            }
            .header .container {
                padding: 12px 20px;
                align-items: center;
            }
            .nav-left.open~.nav-right.open {
                border-top: 1px solid var(--border);
                margin-top: 4px;
            }
        }

        /* ===== Hero / 分类Banner ===== */
        .category-hero {
            padding: 140px 0 80px;
            background: var(--bg-dark);
            background-image: linear-gradient(135deg, rgba(26, 26, 46, 0.85), rgba(20, 20, 31, 0.92)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center center;
            background-attachment: fixed;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(232, 93, 44, 0.25), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .category-hero h1 span {
            color: var(--accent);
        }
        .category-hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-search {
            display: flex;
            max-width: 520px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 4px 4px 4px 20px;
            overflow: hidden;
            transition: var(--transition);
        }
        .hero-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(245, 166, 35, 0.2);
        }
        .hero-search input {
            flex: 1;
            padding: 14px 8px;
            background: transparent;
            color: var(--text-white);
            font-size: 1rem;
            min-width: 0;
        }
        .hero-search input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .hero-search button {
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            white-space: nowrap;
        }
        .hero-search button:hover {
            background: var(--primary-dark);
            transform: scale(1.03);
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 30px;
        }
        .hero-tags .tag {
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
            cursor: pointer;
        }
        .hero-tags .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .hero-tags .tag.active {
            background: var(--accent);
            color: var(--secondary);
            border-color: var(--accent);
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 120px 0 56px;
                background-attachment: scroll;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .hero-search {
                flex-direction: column;
                border-radius: var(--radius-sm);
                background: rgba(255, 255, 255, 0.08);
                padding: 12px;
            }
            .hero-search input {
                padding: 12px 8px;
                text-align: center;
            }
            .hero-search button {
                width: 100%;
                border-radius: var(--radius-sm);
                padding: 12px;
                margin-top: 8px;
            }
            .hero-tags {
                gap: 8px;
            }
            .hero-tags .tag {
                font-size: 0.8rem;
                padding: 4px 14px;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.8rem;
            }
        }

        /* ===== 攻略分类标签栏 ===== */
        .tag-bar {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
            position: sticky;
            top: var(--header-h);
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .tag-bar .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 12px;
        }
        .tag-bar .tag-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-right: 6px;
            white-space: nowrap;
        }
        .tag-bar .tag-item {
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            background: var(--bg);
            color: var(--text);
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .tag-bar .tag-item:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .tag-bar .tag-item.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        @media (max-width: 768px) {
            .tag-bar {
                padding: 12px 0;
                top: var(--header-h);
            }
            .tag-bar .container {
                gap: 6px 8px;
                overflow-x: auto;
                flex-wrap: nowrap;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }
            .tag-bar .tag-label {
                display: none;
            }
            .tag-bar .tag-item {
                font-size: 0.8rem;
                padding: 4px 14px;
                flex-shrink: 0;
            }
        }

        /* ===== 攻略卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .guide-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg);
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .card-img img {
            transform: scale(1.05);
        }
        .guide-card .card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(232, 93, 44, 0.35);
        }
        .guide-card .card-img .badge.hot {
            background: var(--accent);
            color: var(--secondary);
        }
        .guide-card .card-img .badge.new {
            background: #10B981;
        }
        .guide-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
            color: var(--secondary);
        }
        .guide-card .card-body h3 a:hover {
            color: var(--primary);
        }
        .guide-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }
        .guide-card .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .guide-card .card-meta i {
            margin-right: 4px;
            color: var(--primary);
        }
        .guide-card .card-meta .views i {
            color: var(--accent);
        }

        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 600px) {
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .guide-card .card-body {
                padding: 16px 18px 18px;
            }
            .guide-card .card-body h3 {
                font-size: 1rem;
            }
        }

        /* ===== 热门排行 ===== */
        .rank-section {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .rank-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
            border-bottom: 1px solid var(--border-light);
        }
        .rank-item:last-child {
            border-bottom: none;
        }
        .rank-item:hover {
            background: var(--primary-light);
            transform: translateX(6px);
        }
        .rank-item .rank-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1rem;
            background: var(--bg);
            color: var(--text-light);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num {
            background: var(--accent);
            color: var(--secondary);
        }
        .rank-item:nth-child(2) .rank-num {
            background: #E5E7EB;
            color: var(--text);
        }
        .rank-item:nth-child(3) .rank-num {
            background: #FDE8E0;
            color: var(--primary);
        }
        .rank-item .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-item .rank-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-item .rank-info span {
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .rank-item .rank-stats {
            font-size: 0.8rem;
            color: var(--text-light);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .rank-item .rank-stats i {
            color: var(--accent);
        }
        .rank-banner {
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            aspect-ratio: 16 / 9;
            background: var(--bg-dark);
        }
        .rank-banner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.7;
            transition: var(--transition);
        }
        .rank-banner:hover img {
            opacity: 0.9;
            transform: scale(1.03);
        }
        .rank-banner .rank-banner-text {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 28px 24px 20px;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
            color: #fff;
        }
        .rank-banner .rank-banner-text h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .rank-banner .rank-banner-text p {
            font-size: 0.9rem;
            opacity: 0.85;
        }

        @media (max-width: 900px) {
            .rank-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .rank-banner {
                aspect-ratio: 16 / 7;
            }
        }
        @media (max-width: 520px) {
            .rank-item {
                padding: 12px 14px;
                gap: 12px;
            }
            .rank-item .rank-num {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .rank-item .rank-info h4 {
                font-size: 0.88rem;
            }
        }

        /* ===== 专题卡片 ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .topic-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .topic-card .topic-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            background: var(--bg);
        }
        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .topic-card:hover .topic-img img {
            transform: scale(1.06);
        }
        .topic-card .topic-body {
            padding: 18px 20px 20px;
        }
        .topic-card .topic-body h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--secondary);
        }
        .topic-card .topic-body p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
        }
        .topic-card .topic-body .topic-count {
            display: inline-block;
            margin-top: 10px;
            font-size: 0.78rem;
            color: var(--primary);
            font-weight: 600;
        }

        @media (max-width: 1024px) {
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .topic-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 攻略达人 ===== */
        .expert-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .expert-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 20px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .expert-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .expert-card .avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            overflow: hidden;
            margin: 0 auto 16px;
            background: var(--bg);
            border: 3px solid var(--primary-light);
            transition: var(--transition);
        }
        .expert-card:hover .avatar {
            border-color: var(--primary);
        }
        .expert-card .avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .expert-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .expert-card .expert-title {
            font-size: 0.82rem;
            color: var(--primary);
            font-weight: 500;
            margin-bottom: 8px;
        }
        .expert-card p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
            margin-bottom: 12px;
        }
        .expert-card .expert-stats {
            display: flex;
            justify-content: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }
        .expert-card .expert-stats span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .expert-card .expert-stats i {
            color: var(--accent);
        }

        @media (max-width: 900px) {
            .expert-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .expert-grid {
                grid-template-columns: 1fr;
            }
            .expert-card {
                padding: 20px 16px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            color: var(--primary);
        }
        .faq-item .faq-q i {
            transition: var(--transition);
            color: var(--text-light);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item .faq-a p {
            margin-bottom: 8px;
        }
        .faq-item .faq-a p:last-child {
            margin-bottom: 0;
        }
        @media (max-width: 600px) {
            .faq-item .faq-q {
                padding: 14px 16px;
                font-size: 0.92rem;
            }
            .faq-item .faq-a {
                padding: 0 16px 14px;
                font-size: 0.88rem;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: linear-gradient(135deg, rgba(26, 26, 46, 0.92), rgba(20, 20, 31, 0.95)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(232, 93, 44, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-btn {
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-btn.primary {
            background: var(--primary);
            color: #fff;
        }
        .cta-btn.primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(232, 93, 44, 0.4);
        }
        .cta-btn.secondary {
            background: rgba(255, 255, 255, 0.12);
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .cta-btn.secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }
        @media (max-width: 600px) {
            .cta-section {
                padding: 56px 0;
                background-attachment: scroll;
            }
            .cta-section h2 {
                font-size: 1.7rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-btn {
                width: 100%;
                justify-content: center;
                padding: 14px 24px;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer .logo {
            color: var(--text-white);
            font-size: 1.5rem;
        }
        .footer .logo:hover {
            color: var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand p {
            margin: 14px 0 18px;
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer h4 {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom i {
            color: var(--primary);
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer {
                padding: 40px 0 0;
            }
        }

        /* ===== 通用标题样式 ===== */
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-title p {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-title .title-accent {
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .section-title h2 {
                font-size: 1.6rem;
            }
            .section-title p {
                font-size: 0.92rem;
            }
            .section-title {
                margin-bottom: 28px;
            }
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 3px;
            margin: 16px auto 0;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            padding: 16px 0;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text);
            font-weight: 500;
        }
        .breadcrumb .sep {
            color: var(--border);
        }

        /* ===== 加载更多 ===== */
        .load-more {
            text-align: center;
            margin-top: 36px;
        }
        .load-more .btn-load {
            padding: 12px 40px;
            border-radius: 50px;
            background: var(--bg-card);
            color: var(--text);
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid var(--border);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .load-more .btn-load:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        .load-more .btn-load i {
            transition: var(--transition);
        }
        .load-more .btn-load:hover i {
            transform: rotate(180deg);
        }

        /* ===== 面包屑微调 ===== */
        @media (max-width: 600px) {
            .breadcrumb {
                padding: 12px 0;
                font-size: 0.8rem;
            }
        }

        /* ===== 响应式通用 ===== */
        @media (max-width: 768px) {
            .section {
                padding: var(--spacer-sm) 0;
            }
            .container {
                padding: 0 16px;
            }
            :root {
                --spacer: 56px;
                --spacer-sm: 36px;
            }
        }
        @media (max-width: 520px) {
            :root {
                --spacer: 44px;
                --spacer-sm: 28px;
            }
        }

        /* ===== 骨架动画 ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-up {
            animation: fadeUp 0.7s ease both;
        }
        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }
        .delay-4 {
            animation-delay: 0.4s;
        }