/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #1a3a5c;
  --primary-light: #2a5a8c;
  --primary-dark: #0f2440;
  --accent: #f09b22;
  --accent-light: #f5b84e;
  --accent-dark: #c97d10;
  --bg-body: #f4f6fb;
  --bg-white: #ffffff;
  --bg-light: #eef1f8;
  --bg-dark: #0f1a2e;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #8a8aaa;
  --text-inverse: #ffffff;
  --border: #e2e6f0;
  --border-light: #f0f2f8;
  --shadow-sm: 0 2px 8px rgba(26, 58, 92, 0.06);
  --shadow-md: 0 6px 24px rgba(26, 58, 92, 0.10);
  --shadow-lg: 0 16px 48px rgba(26, 58, 92, 0.14);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --container-max: 1200px;
  --header-height: 72px;
}
/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); color: var(--text-primary); background: var(--bg-body); line-height: 1.6; font-size: 16px; }
a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
button, input, textarea { font-family: inherit; font-size: 1rem; border: none; outline: none; transition: var(--transition); }
button { cursor: pointer; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--text-primary); font-weight: 700; }
/* ===== Container ===== */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
/* ===== Header / Nav ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light); height: var(--header-height);
  box-shadow: 0 1px 4px rgba(0,0,0,0.02);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; display: flex; align-items: center; gap: 8px; }
.logo i { color: var(--accent); font-size: 1.6rem; }
.logo span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-list a {
  padding: 8px 18px; border-radius: var(--radius-sm); font-weight: 500; font-size: 0.95rem;
  color: var(--text-secondary); transition: var(--transition); position: relative;
}
.nav-list a:hover { color: var(--primary); background: var(--bg-light); }
.nav-list a.active { color: var(--primary); background: var(--bg-light); font-weight: 600; }
.nav-list a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--accent); border-radius: 4px; }
.nav-cta {
  background: var(--primary); color: #fff !important; border-radius: var(--radius-sm);
  padding: 8px 22px !important; font-weight: 600 !important;
}
.nav-cta:hover { background: var(--primary-light); color: #fff !important; transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.mobile-toggle { display: none; font-size: 1.6rem; color: var(--primary); background: none; padding: 4px; }
/* ===== Hero ===== */
.hero {
  margin-top: var(--header-height); min-height: 86vh; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.20; mix-blend-mode: overlay;
}
.hero-overlay { position: absolute; inset: 0; background: radial-gradient(ellipse at 30% 50%, rgba(240,155,34,0.15) 0%, transparent 70%); }
.hero-content { position: relative; z-index: 2; padding: 80px 0; text-align: center; color: var(--text-inverse); }
.hero-badge {
  display: inline-block; background: rgba(255,255,255,0.12); backdrop-filter: blur(8px);
  padding: 6px 20px; border-radius: 50px; font-size: 0.85rem; letter-spacing: 1px;
  border: 1px solid rgba(255,255,255,0.15); margin-bottom: 24px; color: rgba(255,255,255,0.9);
}
.hero h1 { font-size: 3.6rem; font-weight: 800; line-height: 1.15; margin-bottom: 20px; color: #fff; letter-spacing: -1px; }
.hero h1 em { color: var(--accent); font-style: normal; }
.hero p { font-size: 1.2rem; max-width: 640px; margin: 0 auto 36px; color: rgba(255,255,255,0.8); line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 34px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 1rem; transition: var(--transition); border: none;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 16px rgba(240,155,34,0.35); }
.btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(240,155,34,0.45); color: #fff; }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.3); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(240,155,34,0.08); transform: translateY(-2px); }
.hero-stats { display: flex; flex-wrap: wrap; gap: 40px; justify-content: center; margin-top: 48px; padding-top: 40px; border-top: 1px solid rgba(255,255,255,0.1); }
.hero-stat { text-align: center; }
.hero-stat-number { font-size: 2.2rem; font-weight: 800; color: #fff; }
.hero-stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.65); margin-top: 4px; }
/* ===== Section ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-white); }
.section-dark { background: var(--bg-dark); color: var(--text-inverse); }
.section-header { text-align: center; margin-bottom: 52px; }
.section-tag {
  display: inline-block; background: var(--bg-light); color: var(--primary); padding: 4px 16px;
  border-radius: 50px; font-size: 0.85rem; font-weight: 600; margin-bottom: 12px;
}
.section-title { font-size: 2.2rem; font-weight: 700; margin-bottom: 12px; }
.section-subtitle { font-size: 1.1rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto; }
/* ===== Grid ===== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
/* ===== Card ===== */
.card {
  background: var(--bg-white); border-radius: var(--radius-md); padding: 28px;
  box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--border-light);
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.card-icon { width: 52px; height: 52px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 16px; }
.card-icon.blue { background: #e8f0fe; color: var(--primary); }
.card-icon.orange { background: #fef3e0; color: var(--accent); }
.card-icon.green { background: #e6f7ed; color: #1a8a5a; }
.card-icon.purple { background: #f0e8fe; color: #6a3a9a; }
.card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }
.card-link { margin-top: 16px; display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--primary); font-size: 0.95rem; }
.card-link i { transition: var(--transition); }
.card-link:hover i { transform: translateX(4px); }
/* ===== Cover Card ===== */
.cover-card {
  border-radius: var(--radius-md); overflow: hidden; background: var(--bg-white);
  box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--border-light);
}
.cover-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.cover-card-img { width: 100%; height: 200px; object-fit: cover; border-radius: 0; }
.cover-card-body { padding: 20px; }
.cover-card-body h3 { font-size: 1.1rem; margin-bottom: 6px; }
.cover-card-body p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }
.cover-card-body .badge { display: inline-block; background: var(--bg-light); color: var(--primary); padding: 2px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; margin-bottom: 8px; }
/* ===== Badge ===== */
.badge { display: inline-block; padding: 2px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; }
.badge-accent { background: var(--accent); color: #fff; }
.badge-primary { background: var(--primary); color: #fff; }
/* ===== Info List ===== */
.info-list { display: flex; flex-direction: column; gap: 12px; }
.info-item {
  display: flex; align-items: center; gap: 14px; padding: 18px 22px;
  background: var(--bg-white); border-radius: var(--radius-sm); border: 1px solid var(--border-light);
  transition: var(--transition); cursor: default;
}
.info-item:hover { box-shadow: var(--shadow-sm); border-color: var(--border); }
.info-item .num { width: 32px; height: 32px; border-radius: 50%; background: var(--bg-light); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.85rem; color: var(--primary); flex-shrink: 0; }
.info-item .content { flex: 1; }
.info-item .content h4 { font-size: 1rem; margin-bottom: 2px; }
.info-item .content p { font-size: 0.85rem; color: var(--text-secondary); }
.info-item .meta { font-size: 0.8rem; color: var(--text-muted); white-space: nowrap; }
.info-item .cat { font-size: 0.75rem; color: var(--accent); font-weight: 600; }
/* ===== Steps ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step { text-align: center; position: relative; padding: 32px 16px; }
.step::before { counter-increment: step; content: counter(step); position: absolute; top: -8px; left: 50%; transform: translateX(-50%); width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; }
.step-icon { margin-top: 28px; font-size: 2.2rem; color: var(--primary); margin-bottom: 12px; }
.step h4 { font-size: 1.05rem; margin-bottom: 6px; }
.step p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }
/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 8px; }
.faq-item { background: var(--bg-white); border-radius: var(--radius-sm); border: 1px solid var(--border-light); overflow: hidden; transition: var(--transition); }
.faq-item summary { padding: 18px 24px; font-weight: 600; font-size: 1rem; cursor: pointer; display: flex; align-items: center; gap: 12px; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--accent); font-size: 0.9rem; transition: var(--transition); }
.faq-item[open] summary i { transform: rotate(180deg); }
.faq-item .faq-answer { padding: 0 24px 18px; color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }
/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 80px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.08; }
.cta-content { position: relative; z-index: 1; }
.cta-content h2 { font-size: 2.4rem; color: #fff; margin-bottom: 16px; }
.cta-content p { color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 32px; font-size: 1.1rem; }
.cta-content .btn-primary { background: #fff; color: var(--primary); box-shadow: 0 4px 20px rgba(0,0,0,0.15); }
.cta-content .btn-primary:hover { background: var(--accent); color: #fff; box-shadow: 0 8px 30px rgba(240,155,34,0.4); }
/* ===== Footer ===== */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 48px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { color: #fff; margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
.footer-col a { display: block; color: rgba(255,255,255,0.6); font-size: 0.9rem; padding: 4px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: rgba(255,255,255,0.5); }
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--accent); }
/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 2.8rem; }
}
@media (max-width: 768px) {
  .nav-list { display: none; position: absolute; top: var(--header-height); left: 0; right: 0; background: var(--bg-white); flex-direction: column; padding: 16px 24px; box-shadow: var(--shadow-md); border-radius: 0 0 var(--radius-md) var(--radius-md); gap: 8px; }
  .nav-list.open { display: flex; }
  .nav-list a { width: 100%; padding: 12px 16px; }
  .nav-cta { text-align: center; }
  .mobile-toggle { display: block; }
  .hero { min-height: 70vh; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
  .hero-stats { gap: 24px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .section-title { font-size: 1.8rem; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-content h2 { font-size: 1.8rem; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 1.8rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .hero-stat-number { font-size: 1.6rem; }
  .info-item { flex-wrap: wrap; }
  .info-item .meta { width: 100%; text-align: left; margin-top: 4px; }
  .section { padding: 48px 0; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2a4a7a;
            --accent: #f4a261;
            --accent-light: #f9c28b;
            --success: #2a9d8f;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #0d1b2a;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #2b2d42;
            --text-muted: #6c757d;
            --text-light: #f8f9fa;
            --border-color: #e9ecef;
            --border-light: #f0f0f0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.14);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.18);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
            --spacing-section: 5rem;
            --spacing-block: 3rem;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-base);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        textarea,
        select {
            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 {
            color: var(--text-dark);
            line-height: 1.25;
            font-weight: 700;
        }

        h1 {
            font-size: clamp(2.2rem, 5.5vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
        }
        h3 {
            font-size: clamp(1.3rem, 2.8vw, 1.75rem);
        }
        h4 {
            font-size: clamp(1.1rem, 2vw, 1.35rem);
        }

        p {
            margin-bottom: 1rem;
            color: var(--text-body);
        }
        p:last-child {
            margin-bottom: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            padding-top: 0;
            padding-bottom: 0;
        }

        .logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            transition: opacity var(--transition);
        }
        .logo a:hover {
            opacity: 0.85;
            color: var(--text-dark);
        }
        .logo i {
            color: var(--primary);
            font-size: 1.4rem;
        }
        .logo span {
            font-weight: 300;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-left: 2px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .nav-list li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0.5rem 1.1rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }

        .nav-list li a:hover {
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }

        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.30);
        }
        .nav-list li a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .nav-cta {
            background: var(--secondary) !important;
            color: #fff !important;
            border-radius: var(--radius-sm) !important;
            padding: 0.5rem 1.3rem !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 12px rgba(29, 53, 87, 0.25);
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition) !important;
        }
        .nav-cta:hover {
            background: var(--secondary-light) !important;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(29, 53, 87, 0.35) !important;
            color: #fff !important;
        }
        .nav-cta i {
            font-size: 0.9rem;
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--text-dark);
            padding: 0.3rem;
            background: none;
            border: none;
            cursor: pointer;
            transition: color var(--transition);
        }
        .menu-toggle:hover {
            color: var(--primary);
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }

            .nav-list {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 1rem 1.5rem 1.8rem;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.4s ease, opacity 0.4s ease;
                z-index: 999;
            }

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

            .nav-list li a {
                width: 100%;
                justify-content: center;
                padding: 0.75rem 1rem;
                font-size: 1.05rem;
            }

            .nav-cta {
                margin-top: 6px;
            }
        }

        /* ===== Hero / 页面横幅 ===== */
        .page-hero {
            position: relative;
            padding: calc(var(--nav-height) + 3.5rem) 0 4rem;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            isolation: isolate;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.88) 30%, rgba(230, 57, 70, 0.55) 100%);
            z-index: 0;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .page-hero h1 {
            color: #fff;
            font-weight: 800;
            margin-bottom: 0.75rem;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .page-hero .hero-sub {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.2rem;
            max-width: 680px;
            margin: 0 auto 1.5rem;
            line-height: 1.7;
            font-weight: 400;
        }

        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: #fff;
            padding: 0.35rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.20);
            margin-bottom: 1rem;
        }
        .page-hero .hero-badge i {
            color: var(--accent);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section-alt {
            background: var(--bg-white);
        }

        .section-title {
            text-align: center;
            margin-bottom: 0.75rem;
        }

        .section-desc {
            text-align: center;
            max-width: 680px;
            margin: 0 auto var(--spacing-block);
            color: var(--text-muted);
            font-size: 1.1rem;
        }

        .section-desc strong {
            color: var(--text-body);
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
            gap: 1.8rem;
        }

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

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

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        .card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }

        .card-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            flex: 1;
            margin-bottom: 1rem;
        }

        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 0.8rem;
        }

        .card-tags .tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: 50px;
            letter-spacing: 0.3px;
        }

        .card-tags .tag.tag-blue {
            background: rgba(29, 53, 87, 0.08);
            color: var(--secondary);
        }

        .card-tags .tag.tag-green {
            background: rgba(42, 157, 143, 0.10);
            color: var(--success);
        }

        .card-tags .tag.tag-accent {
            background: rgba(244, 162, 97, 0.12);
            color: #b86b1e;
        }

        .card-link {
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            margin-top: auto;
            transition: gap var(--transition);
        }
        .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        .card-link i {
            font-size: 0.8rem;
        }

        /* ===== 介绍区块 ===== */
        .intro-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .intro-wrap .intro-text h2 {
            margin-bottom: 1rem;
        }

        .intro-wrap .intro-text p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 1.2rem;
        }

        .intro-wrap .intro-text .intro-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
            margin-top: 1.8rem;
        }

        .intro-wrap .intro-text .stat-item {
            text-align: center;
            padding: 1rem 0.5rem;
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
        }

        .intro-wrap .intro-text .stat-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.2;
        }

        .intro-wrap .intro-text .stat-item .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .intro-wrap .intro-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .intro-wrap .intro-img img {
            width: 100%;
            height: auto;
            display: block;
        }

        @media (max-width: 768px) {
            .intro-wrap {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .intro-wrap .intro-text .intro-stats {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* ===== 热门赛事推荐 ===== */
        .hot-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
        }

        .hot-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            background: var(--bg-card);
            padding: 1.2rem 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .hot-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .hot-item .hot-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
        }

        .hot-item .hot-icon.football {
            background: linear-gradient(135deg, #1d3557, #2a4a7a);
        }
        .hot-item .hot-icon.basketball {
            background: linear-gradient(135deg, #e63946, #c1121f);
        }
        .hot-item .hot-icon.tennis {
            background: linear-gradient(135deg, #f4a261, #e07a2f);
        }
        .hot-item .hot-icon.esport {
            background: linear-gradient(135deg, #2a9d8f, #1f7a6e);
        }
        .hot-item .hot-icon.volleyball {
            background: linear-gradient(135deg, #6c5ce7, #4a3db8);
        }
        .hot-item .hot-icon.athletics {
            background: linear-gradient(135deg, #fd79a8, #e84393);
        }

        .hot-item .hot-info {
            flex: 1;
            min-width: 0;
        }

        .hot-item .hot-info h4 {
            font-size: 1.05rem;
            margin-bottom: 0.15rem;
        }

        .hot-item .hot-info .hot-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .hot-item .hot-info .hot-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .hot-item .hot-info .hot-meta i {
            font-size: 0.75rem;
            color: var(--primary);
        }

        .hot-item .hot-badge {
            flex-shrink: 0;
            background: rgba(230, 57, 70, 0.10);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.8rem;
            border-radius: 50px;
            white-space: nowrap;
        }

        /* ===== 数据看板 ===== */
        .stats-board {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stats-board .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem 1rem;
            text-align: center;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .stats-board .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 0.75rem;
        }

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

        .stats-board .stat-card .stat-label {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 0.25rem;
        }

        @media (max-width: 768px) {
            .stats-board {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .stats-board {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .stats-board .stat-card {
                padding: 1.2rem 0.8rem;
            }
            .stats-board .stat-card .stat-num {
                font-size: 1.6rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

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

        .faq-question {
            width: 100%;
            padding: 1.2rem 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            background: transparent;
            text-align: left;
            transition: background var(--transition);
            gap: 1rem;
        }

        .faq-question:hover {
            background: rgba(230, 57, 70, 0.03);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.9rem;
            color: var(--primary);
            transition: transform var(--transition);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.5rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.2rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            isolation: isolate;
            padding: 5rem 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.90) 40%, rgba(230, 57, 70, 0.65) 100%);
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-section h2 {
            color: #fff;
            font-weight: 800;
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 1.8rem;
            font-size: 1.1rem;
        }

        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.8rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.45);
            color: #fff;
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.60);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 0;
            border-top: 3px solid var(--primary);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer .footer-brand p {
            color: rgba(255, 255, 255, 0.60);
            font-size: 0.9rem;
            line-height: 1.7;
        }

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

        .site-footer .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.60);
            font-size: 0.9rem;
            padding: 0.3rem 0;
            transition: color var(--transition), padding-left var(--transition);
        }

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

        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.8rem;
            padding: 1.5rem 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem 1.5rem;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 480px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 4rem;
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }
            .hot-list {
                grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 3rem;
                --spacing-block: 2rem;
            }
            .page-hero {
                min-height: 280px;
                padding: calc(var(--nav-height) + 2rem) 0 2.5rem;
            }
            .page-hero .hero-sub {
                font-size: 1rem;
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
                gap: 1.2rem;
            }
            .hot-list {
                grid-template-columns: 1fr;
            }
            .section-desc {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 480px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .intro-wrap .intro-text .intro-stats {
                grid-template-columns: 1fr 1fr;
                gap: 0.6rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .btn-group {
                flex-direction: column;
                align-items: stretch;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }

        /* 滚动条美化 */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: #ccc;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #aaa;
        }

        /* 选中高亮 */
        ::selection {
            background: var(--primary);
            color: #fff;
        }

/* roulang page: article */
:root {
            --primary: #1a2a6c;
            --primary-dark: #0f1a4a;
            --primary-light: #2d4a8e;
            --accent: #e63946;
            --accent-hover: #c52d39;
            --gold: #f0b429;
            --bg: #f5f7fa;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-weak: #6c757d;
            --text-light: #f8f9fa;
            --border: #e9ecef;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0,0,0,0.07);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', sans-serif;
            --max-w: 1200px;
            --nav-h: 70px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--nav-h);
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width:768px) {
            .container { padding: 0 16px; }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--nav-h);
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%;
        }
        .logo {
            font-size: 1.5rem; font-weight: 800;
            color: var(--primary); letter-spacing: -0.5px;
            display: flex; align-items: center; gap: 8px;
        }
        .logo i { color: var(--accent); font-size: 1.6rem; }
        .nav-list {
            list-style: none; display: flex; align-items: center; gap: 4px;
        }
        .nav-list li a {
            display: inline-flex; align-items: center; gap: 6px;
            padding: 10px 20px; border-radius: var(--radius-sm);
            font-size: 0.95rem; font-weight: 500; color: var(--text);
            transition: var(--transition); white-space: nowrap;
        }
        .nav-list li a:hover { background: rgba(26,42,108,0.06); color: var(--primary); }
        .nav-list li a.active {
            background: var(--primary); color: #fff;
        }
        .nav-list li a.nav-cta {
            background: var(--accent); color: #fff; border-radius: var(--radius-sm);
            padding: 10px 22px; font-weight: 600;
        }
        .nav-list li a.nav-cta:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(230,57,70,0.35); }
        .nav-toggle {
            display: none; background: none; border: none; font-size: 1.6rem;
            color: var(--text); cursor: pointer; padding: 6px; border-radius: 6px;
        }
        .nav-toggle:hover { background: rgba(0,0,0,0.05); }
        @media (max-width:768px) {
            .nav-toggle { display: block; }
            .nav-list {
                position: fixed; top: var(--nav-h); left: 0; right: 0;
                background: rgba(255,255,255,0.98); backdrop-filter: blur(12px);
                flex-direction: column; padding: 16px; gap: 6px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 32px rgba(0,0,0,0.1);
                transform: translateY(-120%); opacity: 0; pointer-events: none;
                transition: var(--transition);
            }
            .nav-list.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-list li a { width: 100%; justify-content: center; padding: 12px 20px; }
            .nav-list li a.nav-cta { margin-top: 4px; }
        }
        @media (max-width:480px) {
            .logo { font-size: 1.25rem; }
            .nav-list li a { font-size: 0.9rem; padding: 10px 14px; }
        }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            min-height: 320px;
            display: flex; align-items: center;
            background: var(--primary-dark) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .article-banner::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(15,26,74,0.85) 0%, rgba(26,42,108,0.65) 100%);
        }
        .article-banner .container {
            position: relative; z-index: 2;
            padding-top: 40px; padding-bottom: 40px;
            width: 100%;
        }
        .article-banner .breadcrumb {
            display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
            font-size: 0.9rem; color: rgba(255,255,255,0.7); margin-bottom: 20px;
        }
        .article-banner .breadcrumb a { color: rgba(255,255,255,0.8); }
        .article-banner .breadcrumb a:hover { color: #fff; }
        .article-banner .breadcrumb .sep { opacity: 0.5; }
        .article-banner h1 {
            font-size: 2.6rem; font-weight: 800; line-height: 1.25;
            max-width: 900px; margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex; flex-wrap: wrap; gap: 20px; align-items: center;
            font-size: 0.95rem; color: rgba(255,255,255,0.8);
        }
        .article-meta .badge {
            display: inline-block; padding: 4px 14px; border-radius: 20px;
            background: var(--accent); color: #fff; font-size: 0.8rem; font-weight: 600;
        }
        .article-meta i { margin-right: 6px; }
        @media (max-width:768px) {
            .article-banner { min-height: 240px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-meta { gap: 12px; font-size: 0.85rem; }
        }
        @media (max-width:480px) {
            .article-banner h1 { font-size: 1.5rem; }
            .article-banner { min-height: 200px; }
        }

        /* ===== Article Content ===== */
        .article-section {
            padding: 48px 0 60px;
        }
        .article-layout {
            display: grid; grid-template-columns: 1fr 320px; gap: 48px;
        }
        .article-body {
            background: var(--bg-card); border-radius: var(--radius);
            padding: 40px; box-shadow: var(--shadow);
        }
        .article-body .content {
            font-size: 1.05rem; line-height: 1.9; color: #2d2d3f;
        }
        .article-body .content p { margin-bottom: 1.5em; }
        .article-body .content h2 { font-size: 1.6rem; margin: 2em 0 0.8em; color: var(--primary); }
        .article-body .content h3 { font-size: 1.3rem; margin: 1.6em 0 0.6em; color: var(--primary); }
        .article-body .content ul, .article-body .content ol { margin: 1em 0 1.5em 1.5em; }
        .article-body .content li { margin-bottom: 0.5em; }
        .article-body .content img { border-radius: var(--radius-sm); margin: 1.5em 0; }
        .article-body .content blockquote {
            border-left: 4px solid var(--accent); background: rgba(230,57,70,0.05);
            padding: 16px 24px; margin: 1.5em 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-weak); font-style: italic;
        }
        .article-body .content a { color: var(--accent); text-decoration: underline; }
        .article-body .content a:hover { color: var(--primary); }
        .article-tags {
            margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border);
            display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
        }
        .article-tags .tag {
            display: inline-block; padding: 6px 16px; border-radius: 20px;
            background: rgba(26,42,108,0.06); color: var(--primary);
            font-size: 0.85rem; font-weight: 500; transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary); color: #fff; }
        .article-share {
            display: flex; gap: 12px; align-items: center; margin-top: 20px;
        }
        .article-share span { font-size: 0.9rem; color: var(--text-weak); }
        .article-share a {
            display: inline-flex; align-items: center; justify-content: center;
            width: 40px; height: 40px; border-radius: 50%;
            background: rgba(26,42,108,0.06); color: var(--primary);
            font-size: 1.1rem; transition: var(--transition);
        }
        .article-share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

        /* Sidebar */
        .article-sidebar {
            display: flex; flex-direction: column; gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card); border-radius: var(--radius);
            padding: 28px; box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.1rem; font-weight: 700; margin-bottom: 16px;
            color: var(--primary); padding-bottom: 12px;
            border-bottom: 2px solid var(--border);
        }
        .sidebar-card .info-list {
            list-style: none; display: flex; flex-direction: column; gap: 12px;
        }
        .sidebar-card .info-list li {
            display: flex; align-items: flex-start; gap: 10px;
            font-size: 0.92rem; color: var(--text-weak);
        }
        .sidebar-card .info-list li i { color: var(--accent); margin-top: 3px; width: 18px; }
        .sidebar-card .info-list li strong { color: var(--text); }

        .sidebar-cta {
            background: var(--primary); color: #fff; border-radius: var(--radius);
            padding: 32px 28px; text-align: center; box-shadow: var(--shadow);
        }
        .sidebar-cta h4 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
        .sidebar-cta p { font-size: 0.9rem; opacity: 0.85; margin-bottom: 18px; }
        .sidebar-cta .btn-outline-light {
            display: inline-block; padding: 10px 28px; border: 2px solid rgba(255,255,255,0.8);
            border-radius: var(--radius-sm); color: #fff; font-weight: 600;
            transition: var(--transition);
        }
        .sidebar-cta .btn-outline-light:hover { background: #fff; color: var(--primary); }

        @media (max-width:992px) {
            .article-layout { grid-template-columns: 1fr; gap: 32px; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
        }
        @media (max-width:600px) {
            .article-body { padding: 24px 20px; }
            .article-body .content { font-size: 1rem; }
            .article-sidebar { grid-template-columns: 1fr; }
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 48px 0 64px;
            background: var(--bg);
        }
        .related-section .section-title {
            text-align: center; margin-bottom: 36px;
        }
        .related-section .section-title h2 {
            font-size: 1.8rem; font-weight: 800; color: var(--primary);
        }
        .related-section .section-title p {
            color: var(--text-weak); margin-top: 8px;
        }
        .related-grid {
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
        }
        .related-card {
            background: var(--bg-card); border-radius: var(--radius);
            overflow: hidden; box-shadow: var(--shadow);
            transition: var(--transition); cursor: pointer;
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .related-card .card-img {
            width: 100%; height: 180px; object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .related-card .card-body { padding: 18px 20px 22px; }
        .related-card .card-body .card-cat {
            display: inline-block; padding: 2px 12px; border-radius: 12px;
            background: rgba(230,57,70,0.1); color: var(--accent);
            font-size: 0.75rem; font-weight: 600; margin-bottom: 8px;
        }
        .related-card .card-body h4 {
            font-size: 1rem; font-weight: 700; line-height: 1.4;
            margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2;
            -webkit-box-orient: vertical; overflow: hidden;
        }
        .related-card .card-body h4 a { color: var(--text); }
        .related-card .card-body h4 a:hover { color: var(--primary); }
        .related-card .card-body .card-date {
            font-size: 0.8rem; color: var(--text-weak);
        }
        @media (max-width:992px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width:520px) {
            .related-grid { grid-template-columns: 1fr; }
            .related-card .card-img { height: 200px; }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 64px 0; text-align: center;
            background: var(--primary-dark) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            position: relative; color: #fff;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: rgba(15,26,74,0.8);
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
        .cta-section p { font-size: 1.05rem; opacity: 0.85; max-width: 600px; margin: 0 auto 28px; }
        .cta-section .btn-cta {
            display: inline-block; padding: 14px 40px; background: var(--accent);
            color: #fff; font-weight: 700; font-size: 1.05rem; border-radius: var(--radius-sm);
            transition: var(--transition); border: none; cursor: pointer;
        }
        .cta-section .btn-cta:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(230,57,70,0.4); }
        @media (max-width:600px) {
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section p { font-size: 0.95rem; }
        }

        /* ===== Not Found ===== */
        .not-found-box {
            background: var(--bg-card); border-radius: var(--radius);
            padding: 60px 40px; text-align: center; box-shadow: var(--shadow);
        }
        .not-found-box i { font-size: 3.5rem; color: var(--text-weak); margin-bottom: 20px; opacity: 0.4; }
        .not-found-box h2 { font-size: 1.6rem; color: var(--text); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-weak); margin-bottom: 24px; }
        .not-found-box .btn-home {
            display: inline-block; padding: 12px 32px; background: var(--primary);
            color: #fff; border-radius: var(--radius-sm); font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-home:hover { background: var(--primary-light); transform: translateY(-2px); }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f1a2e; color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
        }
        .site-footer .footer-grid {
            display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px;
            padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .site-footer .footer-brand .logo { color: #fff; font-size: 1.4rem; margin-bottom: 14px; }
        .site-footer .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 360px; }
        .site-footer .footer-col h4 {
            color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 16px;
        }
        .site-footer .footer-col a {
            display: block; color: rgba(255,255,255,0.6); font-size: 0.9rem;
            padding: 5px 0; transition: var(--transition);
        }
        .site-footer .footer-col a:hover { color: #fff; padding-left: 4px; }
        .site-footer .footer-bottom {
            display: flex; justify-content: space-between; align-items: center;
            padding: 20px 0; font-size: 0.85rem; color: rgba(255,255,255,0.45);
            flex-wrap: wrap; gap: 12px;
        }
        @media (max-width:992px) {
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width:600px) {
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .site-footer .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .mt-16 { margin-top: 16px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        @media (max-width:768px) {
            .hide-mobile { display: none !important; }
        }