/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --clr-primary: #e8b830;
            --clr-primary-dark: #c99f1e;
            --clr-primary-light: #f5d860;
            --clr-secondary: #1a2a4a;
            --clr-accent: #f06414;
            --clr-bg-dark: #0b0f1a;
            --clr-bg-darker: #070a12;
            --clr-bg-card: #111827;
            --clr-bg-section: #0f1623;
            --clr-bg-light: #1a2332;
            --clr-text: #f0f2f5;
            --clr-text-muted: #9aa3b5;
            --clr-text-dim: #6b7a8e;
            --clr-border: rgba(232, 184, 48, 0.15);
            --clr-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, 0.45), 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.55), 0 4px 16px rgba(232, 184, 48, 0.08);
            --shadow-btn: 0 4px 20px rgba(232, 184, 48, 0.25);
            --shadow-btn-hover: 0 6px 30px rgba(232, 184, 48, 0.4);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-display: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 4rem;
            --space-xl: 6rem;
            --container-max: 1200px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--clr-text);
            background: var(--clr-bg-dark);
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--clr-primary-light); }
        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 { font-family: var(--font-display); font-weight: 700; line-height: 1.25; color: var(--clr-text); }
        h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); letter-spacing: -0.02em; }
        h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); letter-spacing: -0.01em; }
        h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
        h4 { font-size: 1.1rem; }
        ::selection { background: var(--clr-primary); color: var(--clr-bg-dark); }
        :focus-visible { outline: 2px solid var(--clr-primary); outline-offset: 2px; }

        /* ===== 容器 ===== */
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-md); width: 100%; }
        @media (max-width: 640px) { .container { padding: 0 var(--space-sm); } }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 15, 26, 0.92);
            backdrop-filter: blur(20px) saturate(1.4);
            -webkit-backdrop-filter: blur(20px) saturate(1.4);
            border-bottom: 1px solid var(--clr-border);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(7, 10, 18, 0.96); box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--space-md);
        }
        .logo { display: flex; align-items: center; gap: 10px; font-size: 1.5rem; font-weight: 800; font-family: var(--font-display); color: var(--clr-text); letter-spacing: -0.03em; }
        .logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent)); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; color: var(--clr-bg-dark); }
        .logo span { color: var(--clr-primary); }
        .nav-list { display: flex; align-items: center; gap: 0.25rem; }
        .nav-list a {
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--clr-text-muted);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover { color: var(--clr-text); background: rgba(255,255,255,0.04); }
        .nav-list a.active { color: var(--clr-primary); background: rgba(232,184,48,0.08); }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.6rem 1.6rem;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
            color: var(--clr-bg-dark) !important;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: var(--shadow-btn);
            margin-left: 0.5rem;
        }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-btn-hover); background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-primary)); color: var(--clr-bg-dark) !important; }
        .nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; background: rgba(255,255,255,0.04); border-radius: var(--radius-sm); width: 40px; height: 40px; align-items: center; justify-content: center; }
        .nav-toggle span { display: block; width: 22px; height: 2px; background: var(--clr-text); border-radius: 2px; transition: var(--transition); }
        .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
        @media (max-width: 868px) {
            .nav-list { display: none; position: absolute; top: 72px; left: 0; right: 0; background: rgba(11,15,26,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: var(--space-sm); border-bottom: 1px solid var(--clr-border); gap: 0.25rem; }
            .nav-list.open { display: flex; }
            .nav-list a { padding: 0.8rem 1rem; width: 100%; border-radius: var(--radius-sm); }
            .nav-cta { margin-left: 0; margin-top: 0.25rem; justify-content: center; }
            .nav-toggle { display: flex; }
        }
        @media (max-width: 480px) {
            .header-inner { padding: 0 var(--space-sm); }
            .logo { font-size: 1.2rem; }
            .logo-icon { width: 30px; height: 30px; font-size: 1rem; }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px var(--space-md) 80px;
            background: var(--clr-bg-darker);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 80%;
            height: 120%;
            background: radial-gradient(ellipse at center, rgba(232,184,48,0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 60%;
            height: 80%;
            background: radial-gradient(ellipse at center, rgba(240,100,20,0.04) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.4;
        }
        .hero-content { position: relative; z-index: 2; text-align: center; max-width: 880px; margin: 0 auto; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.4rem 1.2rem;
            border-radius: 100px;
            background: rgba(232,184,48,0.1);
            border: 1px solid rgba(232,184,48,0.2);
            font-size: 0.85rem;
            color: var(--clr-primary-light);
            font-weight: 500;
            margin-bottom: var(--space-md);
            letter-spacing: 0.02em;
            backdrop-filter: blur(8px);
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero h1 { margin-bottom: var(--space-sm); color: var(--clr-text); }
        .hero h1 .highlight { background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero-desc {
            font-size: clamp(1.05rem, 1.6vw, 1.25rem);
            color: var(--clr-text-muted);
            max-width: 640px;
            margin: 0 auto var(--space-md);
            line-height: 1.8;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); justify-content: center; }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 0.9rem 2.4rem;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
            color: var(--clr-bg-dark);
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: var(--shadow-btn-hover); background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-primary)); color: var(--clr-bg-dark); }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 0.9rem 2.4rem;
            border-radius: var(--radius-sm);
            border: 1.5px solid rgba(255,255,255,0.15);
            color: var(--clr-text);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            background: rgba(255,255,255,0.03);
        }
        .btn-outline:hover { border-color: var(--clr-primary); color: var(--clr-primary); background: rgba(232,184,48,0.05); }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-lg);
            justify-content: center;
            margin-top: var(--space-lg);
            padding-top: var(--space-md);
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .hero-stat { text-align: center; }
        .hero-stat-num { font-size: 2rem; font-weight: 800; font-family: var(--font-display); color: var(--clr-primary); line-height: 1.2; }
        .hero-stat-label { font-size: 0.85rem; color: var(--clr-text-muted); margin-top: 0.25rem; }
        @media (max-width: 768px) {
            .hero { min-height: 80vh; padding: 100px var(--space-sm) 60px; }
            .hero-stats { gap: var(--space-md); }
            .hero-stat-num { font-size: 1.5rem; }
        }
        @media (max-width: 480px) {
            .hero-actions { flex-direction: column; align-items: center; }
            .btn-primary, .btn-outline { width: 100%; justify-content: center; }
        }

        /* ===== 板块通用 ===== */
        .section { padding: var(--space-xl) 0; position: relative; }
        .section-dark { background: var(--clr-bg-section); }
        .section-darker { background: var(--clr-bg-darker); }
        .section-header { text-align: center; margin-bottom: var(--space-lg); }
        .section-header h2 { margin-bottom: var(--space-xs); }
        .section-header p { color: var(--clr-text-muted); max-width: 560px; margin: 0 auto; font-size: 1.05rem; }
        .section-tag {
            display: inline-block;
            padding: 0.3rem 1rem;
            border-radius: 100px;
            background: rgba(232,184,48,0.08);
            border: 1px solid rgba(232,184,48,0.12);
            font-size: 0.8rem;
            color: var(--clr-primary);
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: var(--space-sm);
        }

        /* ===== 核心优势 ===== */
        .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
        .feature-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            border: 1px solid var(--clr-border-light);
            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(--clr-primary), var(--clr-accent));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); border-color: rgba(232,184,48,0.15); }
        .feature-card:hover::before { opacity: 1; }
        .feature-icon { width: 52px; height: 52px; border-radius: var(--radius-sm); background: rgba(232,184,48,0.08); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; color: var(--clr-primary); margin-bottom: var(--space-sm); transition: var(--transition); }
        .feature-card:hover .feature-icon { background: rgba(232,184,48,0.15); }
        .feature-card h3 { margin-bottom: 0.5rem; }
        .feature-card p { color: var(--clr-text-muted); font-size: 0.95rem; line-height: 1.7; }
        @media (max-width: 868px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 560px) { .features-grid { grid-template-columns: 1fr; } }

        /* ===== 分类入口 ===== */
        .category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
        .category-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            border: 1px solid var(--clr-border-light);
            transition: var(--transition);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .category-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(0deg, rgba(232,184,48,0.03) 0%, transparent 100%);
            pointer-events: none;
        }
        .category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); border-color: rgba(232,184,48,0.15); }
        .category-icon { width: 64px; height: 64px; border-radius: 50%; margin: 0 auto var(--space-sm); display: flex; align-items: center; justify-content: center; font-size: 1.6rem; transition: var(--transition); }
        .category-card:nth-child(1) .category-icon { background: rgba(232,184,48,0.1); color: var(--clr-primary); }
        .category-card:nth-child(2) .category-icon { background: rgba(240,100,20,0.1); color: var(--clr-accent); }
        .category-card:nth-child(3) .category-icon { background: rgba(100,200,255,0.1); color: #64c8ff; }
        .category-card h3 { margin-bottom: 0.4rem; }
        .category-card p { color: var(--clr-text-muted); font-size: 0.9rem; margin-bottom: var(--space-sm); }
        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--clr-primary);
            transition: var(--transition);
        }
        .category-link i { transition: var(--transition); }
        .category-link:hover i { transform: translateX(4px); }
        @media (max-width: 868px) { .category-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 560px) { .category-grid { grid-template-columns: 1fr; } }

        /* ===== 资讯列表 ===== */
        .news-list { display: flex; flex-direction: column; gap: var(--space-sm); }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: var(--space-md);
            padding: var(--space-sm) var(--space-md);
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--clr-border-light);
            transition: var(--transition);
        }
        .news-item:hover { border-color: rgba(232,184,48,0.12); background: rgba(17,24,39,0.8); transform: translateX(4px); }
        .news-tag {
            flex-shrink: 0;
            padding: 0.2rem 0.8rem;
            border-radius: 100px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(232,184,48,0.08);
            color: var(--clr-primary);
            border: 1px solid rgba(232,184,48,0.1);
            margin-top: 0.2rem;
        }
        .news-body { flex: 1; min-width: 0; }
        .news-body h4 { font-size: 1.05rem; margin-bottom: 0.25rem; transition: var(--transition); }
        .news-item:hover .news-body h4 { color: var(--clr-primary-light); }
        .news-body p { color: var(--clr-text-muted); font-size: 0.9rem; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-meta { display: flex; align-items: center; gap: var(--space-sm); margin-top: 0.4rem; font-size: 0.8rem; color: var(--clr-text-dim); }
        .news-meta i { margin-right: 4px; font-size: 0.7rem; }
        .news-empty {
            text-align: center;
            padding: var(--space-lg);
            color: var(--clr-text-muted);
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed rgba(255,255,255,0.06);
            font-size: 1rem;
        }
        @media (max-width: 640px) {
            .news-item { flex-direction: column; gap: var(--space-xs); padding: var(--space-sm); }
            .news-tag { align-self: flex-start; }
        }

        /* ===== 数据统计 ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }
        .stat-card {
            text-align: center;
            padding: var(--space-md);
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--clr-border-light);
            transition: var(--transition);
        }
        .stat-card:hover { border-color: rgba(232,184,48,0.12); transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .stat-number { font-size: 2.4rem; font-weight: 800; font-family: var(--font-display); color: var(--clr-primary); line-height: 1.2; }
        .stat-label { font-size: 0.9rem; color: var(--clr-text-muted); margin-top: 0.3rem; }
        .stat-icon { font-size: 1.4rem; color: var(--clr-text-dim); margin-bottom: var(--space-xs); }
        @media (max-width: 868px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 480px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); } .stat-number { font-size: 1.6rem; } }

        /* ===== 服务流程 ===== */
        .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); position: relative; }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--clr-primary), rgba(232,184,48,0.1));
            z-index: 0;
            pointer-events: none;
        }
        .step-card { text-align: center; position: relative; z-index: 1; padding: var(--space-sm); }
        .step-num {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--clr-bg-card);
            border: 2px solid var(--clr-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 800;
            font-family: var(--font-display);
            color: var(--clr-primary);
            margin: 0 auto var(--space-sm);
            transition: var(--transition);
        }
        .step-card:hover .step-num { border-color: var(--clr-primary); box-shadow: 0 0 30px rgba(232,184,48,0.1); }
        .step-card h4 { margin-bottom: 0.3rem; }
        .step-card p { color: var(--clr-text-muted); font-size: 0.9rem; }
        @media (max-width: 868px) { .steps-grid { grid-template-columns: repeat(2, 1fr); } .steps-grid::before { display: none; } }
        @media (max-width: 480px) { .steps-grid { grid-template-columns: 1fr; } }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-sm); }
        .faq-item {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--clr-border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(232,184,48,0.1); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-sm) var(--space-md);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            gap: var(--space-sm);
        }
        .faq-question i { color: var(--clr-primary); transition: var(--transition); font-size: 0.85rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 var(--space-md) var(--space-sm);
            color: var(--clr-text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }
        .faq-item.open .faq-question { color: var(--clr-primary-light); }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--clr-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--space-lg) var(--space-md);
            text-align: center;
            border: 1px solid var(--clr-border);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(232,184,48,0.03) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section h2 { margin-bottom: var(--space-xs); }
        .cta-section p { color: var(--clr-text-muted); max-width: 520px; margin: 0 auto var(--space-md); }
        .cta-actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); justify-content: center; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--clr-bg-darker);
            border-top: 1px solid var(--clr-border-light);
            padding: var(--space-lg) 0 var(--space-md);
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-md); margin-bottom: var(--space-md); }
        .footer-brand .logo { margin-bottom: var(--space-sm); }
        .footer-brand p { color: var(--clr-text-muted); font-size: 0.9rem; max-width: 320px; line-height: 1.7; }
        .footer-col h4 { font-size: 0.95rem; margin-bottom: var(--space-sm); color: var(--clr-text); }
        .footer-col a { display: block; padding: 0.3rem 0; font-size: 0.9rem; color: var(--clr-text-muted); transition: var(--transition); }
        .footer-col a:hover { color: var(--clr-primary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--clr-border-light);
            padding-top: var(--space-sm);
            margin-top: var(--space-md);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: var(--space-sm);
            font-size: 0.85rem;
            color: var(--clr-text-dim);
        }
        .footer-bottom a { color: var(--clr-text-dim); }
        .footer-bottom a:hover { color: var(--clr-primary); }
        .footer-social { display: flex; gap: var(--space-sm); }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--clr-border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--clr-text-muted);
            transition: var(--transition);
        }
        .footer-social a:hover { background: rgba(232,184,48,0.1); border-color: var(--clr-primary); color: var(--clr-primary); }
        @media (max-width: 868px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; text-align: center; } }

        /* ===== 滚动动画 ===== */
        .fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
        .fade-up.visible { opacity: 1; transform: translateY(0); }

        /* ===== 额外响应式微调 ===== */
        @media (max-width: 1024px) {
            :root { --space-xl: 4rem; --space-lg: 3rem; --space-md: 1.5rem; }
        }
        @media (max-width: 640px) {
            :root { --space-xl: 3rem; --space-lg: 2rem; --space-md: 1rem; }
            .section { padding: var(--space-lg) 0; }
        }

        /* Foundation 覆盖 */
        .grid-container { max-width: var(--container-max); padding-left: var(--space-md); padding-right: var(--space-md); }
        .grid-x { margin-left: -0.75rem; margin-right: -0.75rem; }
        .cell { padding-left: 0.75rem; padding-right: 0.75rem; }
        .button { transition: var(--transition); }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #b71c1c;
            --primary-light: #ff5a5f;
            --accent: #ffd166;
            --accent-dark: #f0b400;
            --bg-dark: #0d1b2a;
            --bg-mid: #1b2838;
            --bg-card: #1e2d3d;
            --bg-card-hover: #243447;
            --bg-body: #0a1628;
            --text-main: #f0f4f8;
            --text-muted: #8899aa;
            --text-soft: #b0c4d8;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.15);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 16px 48px rgba(230, 57, 70, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::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-body);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a:hover,
        a:focus {
            color: var(--accent);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        p {
            color: var(--text-soft);
            margin-bottom: 0;
        }

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

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        @media screen and (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(13, 27, 42, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(13, 27, 42, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.02em;
            transition: var(--transition);
        }

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

        .logo .logo-icon {
            color: var(--primary);
            font-size: 1.4rem;
            display: flex;
            align-items: center;
        }

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

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

        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-soft);
            transition: var(--transition);
            position: relative;
        }

        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--primary-light);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-list a:hover::after,
        .nav-list a.active::after {
            width: 60%;
        }

        .nav-list a:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-list a.active {
            color: var(--accent);
            background: rgba(255, 209, 102, 0.08);
        }

        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 10px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
            margin-left: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-list a.nav-cta::after {
            display: none;
        }

        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(230, 57, 70, 0.4);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            color: #fff;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .nav-toggle span {
            width: 26px;
            height: 2.5px;
            background: var(--text-main);
            border-radius: 4px;
            transition: var(--transition);
        }

        .nav-toggle:hover span {
            background: var(--primary-light);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media screen and (max-width: 868px) {
            .nav-toggle {
                display: flex;
            }

            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(13, 27, 42, 0.98);
                backdrop-filter: blur(20px);
                padding: 20px 24px 30px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-110%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            }

            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }

            .nav-list a {
                width: 100%;
                padding: 12px 18px;
                font-size: 1.05rem;
            }

            .nav-list a.nav-cta {
                margin-left: 0;
                margin-top: 10px;
                justify-content: center;
                padding: 14px 18px;
            }

            .nav-list a::after {
                display: none;
            }

            .nav-list a.active {
                border-left: 3px solid var(--accent);
            }
        }

        @media screen and (max-width: 520px) {
            .header-inner {
                padding: 0 12px;
            }

            .logo {
                font-size: 1.3rem;
            }

            .logo .logo-icon {
                font-size: 1.1rem;
            }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #162a3a 50%, #0d1b2a 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 209, 102, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text-main) 30%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero p {
            font-size: 1.15rem;
            color: var(--text-soft);
            max-width: 680px;
            line-height: 1.8;
        }

        .page-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 30px;
            margin-top: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }

        .page-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .page-hero .hero-meta span i {
            color: var(--primary-light);
        }

        @media screen and (max-width: 768px) {
            .page-hero {
                padding: 120px 0 40px;
            }

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

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

        @media screen and (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }
        }

        /* ===== Category Filter Bar ===== */
        .filter-bar {
            background: var(--bg-mid);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
            position: sticky;
            top: var(--header-height);
            z-index: 100;
        }

        .filter-bar .container {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .filter-bar .container::-webkit-scrollbar {
            display: none;
        }

        .filter-btn {
            padding: 8px 20px;
            border-radius: 30px;
            border: 1px solid var(--border-light);
            background: transparent;
            color: var(--text-soft);
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .filter-btn:hover {
            border-color: var(--primary-light);
            color: var(--text-main);
            background: rgba(230, 57, 70, 0.08);
        }

        .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
        }

        .filter-btn i {
            margin-right: 6px;
        }

        /* ===== Main Content ===== */
        .main-content {
            padding: 50px 0 70px;
        }

        /* ===== Article Grid ===== */
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

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

        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(230, 57, 70, 0.25);
            background: var(--bg-card-hover);
        }

        .article-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            background: var(--bg-mid);
        }

        .article-card .card-img-placeholder {
            width: 100%;
            height: 200px;
            background: linear-gradient(135deg, var(--bg-mid), var(--bg-card));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            color: var(--text-muted);
        }

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

        .article-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 12px;
        }

        .article-card .card-tags span {
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(230, 57, 70, 0.12);
            color: var(--primary-light);
            border: 1px solid rgba(230, 57, 70, 0.15);
        }

        .article-card .card-tags .tag-accent {
            background: rgba(255, 209, 102, 0.12);
            color: var(--accent);
            border-color: rgba(255, 209, 102, 0.15);
        }

        .article-card .card-tags .tag-green {
            background: rgba(46, 204, 113, 0.12);
            color: #2ecc71;
            border-color: rgba(46, 204, 113, 0.15);
        }

        .article-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .article-card h3 a {
            color: var(--text-main);
            transition: var(--transition);
        }

        .article-card h3 a:hover {
            color: var(--primary-light);
        }

        .article-card .card-excerpt {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-color);
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .article-card .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .article-card .card-meta i {
            margin-right: 4px;
            color: var(--primary-light);
        }

        .article-card .card-meta .read-more {
            color: var(--primary-light);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .article-card .card-meta .read-more:hover {
            color: var(--accent);
            gap: 10px;
        }

        /* Featured article - first item larger */
        .article-card.featured {
            grid-column: 1 / -1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }

        .article-card.featured .card-img-placeholder,
        .article-card.featured .card-img {
            height: 100%;
            min-height: 320px;
        }

        .article-card.featured .card-body {
            padding: 32px 32px 32px 28px;
        }

        .article-card.featured h3 {
            font-size: 1.5rem;
        }

        .article-card.featured .card-excerpt {
            font-size: 0.95rem;
        }

        @media screen and (max-width: 868px) {
            .article-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .article-card.featured {
                grid-template-columns: 1fr;
            }

            .article-card.featured .card-img-placeholder,
            .article-card.featured .card-img {
                min-height: 220px;
                height: 220px;
            }

            .article-card.featured .card-body {
                padding: 22px 20px 24px;
            }

            .article-card.featured h3 {
                font-size: 1.25rem;
            }
        }

        @media screen and (max-width: 520px) {
            .article-card .card-body {
                padding: 18px 16px 20px;
            }

            .article-card .card-img-placeholder,
            .article-card .card-img {
                height: 170px;
            }

            .article-card h3 {
                font-size: 1.05rem;
            }

            .article-card .card-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* ===== Pagination ===== */
        .pagination-wrap {
            margin-top: 48px;
            display: flex;
            justify-content: center;
        }

        .pagination {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 44px;
            height: 44px;
            padding: 0 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            background: var(--bg-card);
            color: var(--text-soft);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .pagination a:hover {
            border-color: var(--primary-light);
            color: var(--text-main);
            background: rgba(230, 57, 70, 0.08);
        }

        .pagination .current {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.25);
        }

        .pagination .dots {
            border: none;
            background: transparent;
            color: var(--text-muted);
        }

        /* ===== Hot Topics Section ===== */
        .hot-topics {
            background: var(--bg-mid);
            padding: 60px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .section-sub {
            color: var(--text-muted);
            font-size: 1rem;
            margin-bottom: 36px;
            max-width: 600px;
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .topic-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
        }

        .topic-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(230, 57, 70, 0.2);
            background: var(--bg-card-hover);
        }

        .topic-item .topic-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        .topic-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .topic-item p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
        }

        .topic-item .topic-count {
            display: inline-block;
            margin-top: 12px;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            font-size: 0.75rem;
            font-weight: 600;
        }

        @media screen and (max-width: 868px) {
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media screen and (max-width: 520px) {
            .topics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .topic-item {
                padding: 18px 14px;
            }

            .topic-item .topic-icon {
                font-size: 1.5rem;
            }

            .section-title {
                font-size: 1.4rem;
            }
        }

        /* ===== Live Scores / Data Block ===== */
        .live-scores {
            padding: 60px 0;
            background: var(--bg-dark);
        }

        .scores-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .score-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .score-card:hover {
            border-color: rgba(255, 209, 102, 0.2);
            box-shadow: var(--shadow-hover);
        }

        .score-card .score-league {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .score-card .score-league i {
            color: var(--primary-light);
        }

        .score-card .score-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .score-card .team {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
        }

        .score-card .team .team-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-mid);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .score-card .score-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 0.05em;
        }

        .score-card .score-status {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.05);
            display: inline-block;
            align-self: center;
        }

        .score-card .score-status.live {
            color: var(--primary-light);
            background: rgba(230, 57, 70, 0.12);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        @media screen and (max-width: 868px) {
            .scores-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

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

            .score-card .score-number {
                font-size: 1.3rem;
            }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, var(--bg-dark), #1a2a3a, var(--bg-dark));
            border-top: 1px solid var(--border-color);
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-section p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 32px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.4);
            color: #fff;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius-md);
            background: transparent;
            color: var(--text-main);
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-secondary:hover {
            border-color: var(--primary-light);
            color: var(--primary-light);
            background: rgba(230, 57, 70, 0.05);
            transform: translateY(-3px);
        }

        @media screen and (max-width: 520px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
                padding: 14px 24px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 30px;
        }

        .footer-brand .logo {
            font-size: 1.4rem;
            margin-bottom: 14px;
            display: inline-flex;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 18px;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

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

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: var(--transition);
        }

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

        @media screen and (max-width: 868px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media screen and (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

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

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }

        .mb-1 {
            margin-bottom: 12px;
        }
        .mb-2 {
            margin-bottom: 24px;
        }
        .mb-3 {
            margin-bottom: 36px;
        }

        .mt-1 {
            margin-top: 12px;
        }
        .mt-2 {
            margin-top: 24px;
        }
        .mt-3 {
            margin-top: 36px;
        }

        /* ===== Responsive Fine-tune ===== */
        @media screen and (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.2fr 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media screen and (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media screen and (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-col h4 {
                margin-bottom: 10px;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a2a6c;
            --primary-light: #2d46a0;
            --primary-dark: #0f1a45;
            --accent: #f0c040;
            --accent-light: #f5d870;
            --accent-dark: #d4a820;
            --bg-dark: #0b0e1a;
            --bg-card: #13182b;
            --bg-section: #0f1325;
            --text-light: #f0f2f8;
            --text-muted: #8a91b0;
            --text-body: #c8cde0;
            --border-color: rgba(240, 192, 64, 0.15);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.4);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-light); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media screen and (max-width: 640px) { .container { padding: 0 16px; } }

        /* ===== Header / Nav ===== */
        .site-header {
            background: rgba(11, 14, 26, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0 24px;
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.5px;
        }
        .logo:hover { color: var(--accent); }
        .logo .logo-icon {
            color: var(--accent);
            font-size: 1.4rem;
            display: flex;
            align-items: center;
        }
        .logo span { color: var(--accent); font-weight: 700; }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-list a {
            color: var(--text-muted);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover { color: var(--text-light); background: rgba(255,255,255,0.06); }
        .nav-list a.active {
            color: var(--accent);
            background: rgba(240, 192, 64, 0.1);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            font-weight: 700;
            padding: 8px 22px;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(240, 192, 64, 0.3);
            margin-left: 8px;
        }
        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(240, 192, 64, 0.4);
            color: var(--primary-dark);
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-light);
            border-radius: 3px;
            transition: var(--transition);
        }
        .nav-toggle:hover span { background: var(--accent); }
        @media screen and (max-width: 900px) {
            .nav-toggle { display: flex; }
            .nav-list {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(11, 14, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 30px;
                gap: 4px;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a { padding: 12px 16px; width: 100%; text-align: center; font-size: 1rem; }
            .nav-list a.active::after { display: none; }
            .nav-list a.nav-cta { margin-left: 0; margin-top: 8px; text-align: center; }
        }

        /* ===== Article Hero ===== */
        .article-hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--bg-dark) 60%);
            padding: 60px 0 40px;
            border-bottom: 1px solid var(--border-color);
            position: relative;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: radial-gradient(circle at 80% 20%, rgba(240,192,64,0.05) 0%, transparent 60%);
            pointer-events: none;
        }
        .article-hero .container { position: relative; z-index: 1; }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: var(--text-muted); }
        .article-breadcrumb a:hover { color: var(--accent); }
        .article-breadcrumb .sep { color: var(--text-muted); opacity: 0.4; }
        .article-breadcrumb .current { color: var(--accent); }
        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            align-items: center;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .article-meta .tag {
            background: rgba(240, 192, 64, 0.12);
            color: var(--accent);
            padding: 3px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .article-meta i { margin-right: 5px; opacity: 0.7; }
        @media screen and (max-width: 768px) {
            .article-hero { padding: 40px 0 30px; }
            .article-hero h1 { font-size: 1.7rem; }
            .article-meta { gap: 10px 20px; font-size: 0.82rem; }
        }

        /* ===== Article Body ===== */
        .article-body-section {
            padding: 50px 0 70px;
            background: var(--bg-section);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 50px;
        }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 40px 44px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .article-content p {
            margin-bottom: 1.4em;
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-body);
        }
        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-light);
            margin: 1.8em 0 0.8em;
            border-left: 4px solid var(--accent);
            padding-left: 16px;
        }
        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-light);
            margin: 1.5em 0 0.6em;
        }
        .article-content ul, .article-content ol {
            margin: 1em 0 1.4em 1.6em;
            color: var(--text-body);
        }
        .article-content li { margin-bottom: 0.5em; }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(240, 192, 64, 0.06);
            padding: 16px 24px;
            margin: 1.5em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
        .article-content a:hover { color: var(--accent-light); }
        .article-content .not-found {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
        }
        .article-content .not-found i { font-size: 3rem; margin-bottom: 20px; color: var(--accent); opacity: 0.5; }
        .article-content .not-found h2 { font-size: 1.6rem; margin-bottom: 12px; border: none; padding: 0; color: var(--text-light); }
        .article-content .not-found p { font-size: 1rem; }
        .article-content .not-found a { display: inline-block; margin-top: 20px; padding: 10px 28px; background: var(--accent); color: var(--primary-dark); border-radius: 50px; font-weight: 600; text-decoration: none; }
        .article-content .not-found a:hover { background: var(--accent-light); transform: translateY(-2px); }

        /* Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
            display: inline-block;
        }
        .sidebar-card ul { list-style: none; }
        .sidebar-card li { margin-bottom: 10px; }
        .sidebar-card li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-body);
            font-size: 0.92rem;
            transition: var(--transition);
        }
        .sidebar-card li a:hover {
            background: rgba(240, 192, 64, 0.08);
            color: var(--accent);
            padding-left: 16px;
        }
        .sidebar-card li a i { color: var(--accent); width: 18px; font-size: 0.85rem; }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
            border: 1px solid var(--border-color);
            text-align: center;
            padding: 32px 20px;
        }
        .sidebar-cta h3 { border: none; color: var(--accent); font-size: 1.2rem; margin-bottom: 10px; }
        .sidebar-cta p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 18px; }
        .sidebar-cta a.btn-cta {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: 0 4px 15px rgba(240, 192, 64, 0.25);
            transition: var(--transition);
        }
        .sidebar-cta a.btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(240, 192, 64, 0.35);
            background: var(--accent-light);
        }

        @media screen and (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 40px; }
            .article-content { padding: 30px 28px; }
        }
        @media screen and (max-width: 640px) {
            .article-content { padding: 20px 16px; }
            .article-content p { font-size: 0.98rem; }
            .article-content h2 { font-size: 1.3rem; }
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 50px 0 70px;
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
        }
        .related-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-section h2 i { color: var(--accent); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(240, 192, 64, 0.25);
        }
        .related-card .cat-tag {
            display: inline-block;
            background: rgba(240, 192, 64, 0.1);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
        }
        .related-card h3 { font-size: 1.05rem; font-weight: 600; color: var(--text-light); margin-bottom: 8px; line-height: 1.4; }
        .related-card h3 a { color: var(--text-light); }
        .related-card h3 a:hover { color: var(--accent); }
        .related-card p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 12px; line-height: 1.6; }
        .related-card .date { font-size: 0.78rem; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
        .related-card .date i { opacity: 0.6; }
        @media screen and (max-width: 900px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media screen and (max-width: 560px) {
            .related-grid { grid-template-columns: 1fr; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo { font-size: 1.3rem; margin-bottom: 14px; display: inline-flex; }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; max-width: 320px; }
        .footer-col h4 {
            color: var(--text-light);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.84rem;
            color: var(--text-muted);
        }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: rgba(255,255,255,0.05);
            border-radius: 50%;
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }
        @media screen and (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
        }
        @media screen and (max-width: 560px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Utility ===== */
        .text-accent { color: var(--accent); }
        .mt-1 { margin-top: 10px; }
        .mb-1 { margin-bottom: 10px; }
        .gap-2 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        @media screen and (max-width: 640px) {
            .hide-mobile { display: none !important; }
        }