/* roulang page: index */
/* ===== Design Variables ===== */
:root {
  --color-primary: #FF6B35;
  --color-primary-dark: #E55A2B;
  --color-primary-light: #FF8A5C;
  --color-secondary: #1E293B;
  --color-accent: #10B981;
  --color-accent-dark: #059669;
  --color-gold: #F59E0B;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F1F5F9;
  --color-bg-card: #FFFFFF;
  --color-bg-dark: #0F172A;
  --color-bg-dark-alt: #1E293B;
  --color-text: #1E293B;
  --color-text-light: #64748B;
  --color-text-lighter: #94A3B8;
  --color-text-inverse: #FFFFFF;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;
  --color-danger: #EF4444;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.10);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.14);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s ease;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --container-width: 1200px;
  --container-narrow: 900px;
  --header-height: 72px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 80px;
}
/* ===== 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-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }
a:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: var(--radius-sm); }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
button { cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--color-text); font-weight: 700; }
h1 { font-size: 2.75rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }
p { margin-bottom: 1rem; color: var(--color-text-light); }
p:last-child { margin-bottom: 0; }
/* ===== Container ===== */
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 var(--space-lg); }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-lg); }
/* ===== Header & Nav ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  transition: box-shadow var(--transition), background var(--transition);
}
.header.scrolled { box-shadow: var(--shadow); background: rgba(255,255,255,0.98); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 var(--space-lg);
}
.logo { display: flex; align-items: center; gap: var(--space-sm); font-size: 1.35rem; font-weight: 800; color: var(--color-text); letter-spacing: -0.02em; }
.logo i { color: var(--color-primary); font-size: 1.6rem; }
.logo span { background: linear-gradient(135deg, var(--color-primary), var(--color-gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-desktop { display: flex; align-items: center; gap: var(--space-xl); }
.nav-desktop a {
  position: relative; font-size: 0.95rem; font-weight: 500; color: var(--color-text-light); padding: var(--space-sm) 0;
  transition: color var(--transition);
}
.nav-desktop a::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--color-primary);
  transform: scaleX(0); transition: transform var(--transition);
}
.nav-desktop a:hover { color: var(--color-text); }
.nav-desktop a:hover::after { transform: scaleX(1); }
.nav-desktop a.active { color: var(--color-primary); font-weight: 600; }
.nav-desktop a.active::after { transform: scaleX(1); }
.nav-cta {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  padding: 10px 24px; background: var(--color-primary); color: #fff !important;
  border-radius: var(--radius); font-weight: 600; font-size: 0.9rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--color-primary-dark); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255,107,53,0.3); color: #fff !important; }
.nav-cta i { font-size: 0.85rem; }
/* Mobile Nav Toggle */
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: var(--space-sm); cursor: pointer; background: none; border: none; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--color-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); }
/* Mobile Drawer */
.mobile-drawer {
  position: fixed; top: var(--header-height); left: 0; right: 0; bottom: 0; background: rgba(255,255,255,0.98);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--space-2xl);
  transform: translateY(-100%); opacity: 0; pointer-events: none;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  z-index: 999;
}
.mobile-drawer.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
.mobile-drawer a { font-size: 1.5rem; font-weight: 600; color: var(--color-text-light); transition: color var(--transition); }
.mobile-drawer a:hover, .mobile-drawer a.active { color: var(--color-primary); }
.mobile-drawer .nav-cta { font-size: 1.1rem; padding: 14px 36px; }
/* ===== Bottom Tab (Mobile) ===== */
.bottom-tab {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 1001;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--color-border);
  padding: 6px 0; padding-bottom: env(safe-area-inset-bottom, 6px);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.05);
}
.bottom-tab-inner { display: flex; justify-content: space-around; align-items: center; max-width: 500px; margin: 0 auto; }
.bottom-tab a {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 6px 16px; color: var(--color-text-lighter); font-size: 0.7rem; font-weight: 500;
  transition: color var(--transition); border-radius: var(--radius-sm);
}
.bottom-tab a i { font-size: 1.25rem; transition: color var(--transition); }
.bottom-tab a:hover, .bottom-tab a.active { color: var(--color-primary); }
.bottom-tab a.active i { color: var(--color-primary); }
/* ===== Hero ===== */
.hero {
  position: relative; min-height: 92vh; display: flex; align-items: center;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  margin-top: var(--header-height);
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(15,23,42,0.88) 0%, rgba(15,23,42,0.60) 50%, rgba(255,107,53,0.30) 100%);
  z-index: 1;
}
.hero::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  background: linear-gradient(to top, var(--color-bg), transparent);
  z-index: 2;
}
.hero-content { position: relative; z-index: 3; max-width: 720px; padding: var(--space-4xl) 0; }
.hero-badge {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  background: rgba(255,107,53,0.18); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,107,53,0.25);
  padding: 6px 18px; border-radius: 100px;
  font-size: 0.85rem; color: var(--color-primary-light); font-weight: 500;
  margin-bottom: var(--space-lg);
}
.hero-badge i { font-size: 0.75rem; }
.hero h1 { font-size: 3.5rem; font-weight: 800; color: #fff; line-height: 1.1; margin-bottom: var(--space-lg); letter-spacing: -0.02em; }
.hero h1 span { background: linear-gradient(135deg, var(--color-primary), var(--color-gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { font-size: 1.15rem; color: rgba(255,255,255,0.75); max-width: 560px; margin-bottom: var(--space-xl); line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-md); }
.hero-btn {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  padding: 14px 32px; border-radius: var(--radius); font-weight: 600; font-size: 1rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.hero-btn-primary { background: var(--color-primary); color: #fff; box-shadow: 0 8px 32px rgba(255,107,53,0.35); }
.hero-btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: 0 12px 40px rgba(255,107,53,0.45); color: #fff; }
.hero-btn-secondary { background: rgba(255,255,255,0.12); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.2); color: #fff; }
.hero-btn-secondary:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); color: #fff; }
.hero-stats { display: flex; flex-wrap: wrap; gap: var(--space-2xl); margin-top: var(--space-3xl); padding-top: var(--space-xl); border-top: 1px solid rgba(255,255,255,0.12); }
.hero-stat { text-align: left; }
.hero-stat-num { font-size: 1.75rem; font-weight: 800; color: #fff; letter-spacing: -0.02em; }
.hero-stat-num span { color: var(--color-primary); }
.hero-stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.55); margin-top: 2px; }
/* ===== Section Common ===== */
.section { padding: var(--space-4xl) 0; }
.section-alt { background: var(--color-bg-alt); }
.section-dark { background: var(--color-bg-dark); color: #fff; }
.section-header { text-align: center; margin-bottom: var(--space-3xl); }
.section-header h2 { margin-bottom: var(--space-md); }
.section-header h2 i { color: var(--color-primary); margin-right: var(--space-sm); }
.section-header p { max-width: 600px; margin: 0 auto; color: var(--color-text-light); }
.section-dark .section-header h2 { color: #fff; }
.section-dark .section-header p { color: rgba(255,255,255,0.6); }
.section-tag {
  display: inline-block; padding: 4px 16px; background: rgba(255,107,53,0.10);
  border-radius: 100px; font-size: 0.8rem; font-weight: 600; color: var(--color-primary);
  margin-bottom: var(--space-md); letter-spacing: 0.02em;
}
.section-dark .section-tag { background: rgba(255,255,255,0.10); color: rgba(255,255,255,0.8); }
/* ===== Features Grid ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.feature-card {
  background: var(--color-bg-card); border-radius: var(--radius-lg); padding: var(--space-xl) var(--space-lg);
  box-shadow: var(--shadow); border: 1px solid var(--color-border); text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-icon {
  width: 64px; height: 64px; margin: 0 auto var(--space-lg);
  background: linear-gradient(135deg, rgba(255,107,53,0.12), rgba(255,107,53,0.04));
  border-radius: var(--radius); display: flex; align-items: center; justify-content: center;
  font-size: 1.75rem; color: var(--color-primary);
}
.feature-card h3 { font-size: 1.15rem; margin-bottom: var(--space-sm); }
.feature-card p { font-size: 0.9rem; color: var(--color-text-light); margin-bottom: 0; }
/* ===== Categories / Cards Grid ===== */
.categories-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.category-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--color-bg-card); box-shadow: var(--shadow); border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.category-card img { width: 100%; height: 200px; object-fit: cover; transition: transform var(--transition); }
.category-card:hover img { transform: scale(1.05); }
.category-card-body { padding: var(--space-lg); }
.category-card-body h3 { font-size: 1.1rem; margin-bottom: var(--space-sm); }
.category-card-body p { font-size: 0.88rem; color: var(--color-text-light); margin-bottom: var(--space-md); }
.category-tag {
  display: inline-block; padding: 2px 12px; background: rgba(255,107,53,0.10);
  border-radius: 100px; font-size: 0.75rem; font-weight: 600; color: var(--color-primary);
}
/* ===== CMS Latest Posts ===== */
.posts-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
.post-card {
  display: flex; flex-direction: column; background: var(--color-bg-card);
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.post-card-img { width: 100%; height: 200px; object-fit: cover; }
.post-card-body { padding: var(--space-lg); flex: 1; display: flex; flex-direction: column; }
.post-card-meta { display: flex; align-items: center; gap: var(--space-md); margin-bottom: var(--space-sm); font-size: 0.8rem; color: var(--color-text-lighter); }
.post-card-meta .cat { background: rgba(255,107,53,0.10); color: var(--color-primary); padding: 2px 12px; border-radius: 100px; font-weight: 600; }
.post-card-body h3 { font-size: 1.1rem; margin-bottom: var(--space-sm); flex: 1; }
.post-card-body h3 a { color: var(--color-text); }
.post-card-body h3 a:hover { color: var(--color-primary); }
.post-card-body p { font-size: 0.88rem; color: var(--color-text-light); margin-bottom: var(--space-md); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-card-foot { display: flex; align-items: center; justify-content: space-between; padding-top: var(--space-md); border-top: 1px solid var(--color-border-light); }
.post-card-foot .date { font-size: 0.8rem; color: var(--color-text-lighter); }
.post-card-foot .read-more { font-size: 0.85rem; font-weight: 600; color: var(--color-primary); }
.empty-posts {
  grid-column: 1 / -1; text-align: center; padding: var(--space-3xl) var(--space-lg);
  background: var(--color-bg-alt); border-radius: var(--radius-lg);
  color: var(--color-text-light); font-size: 1.05rem;
}
.empty-posts i { font-size: 2rem; color: var(--color-text-lighter); margin-bottom: var(--space-md); display: block; }
/* ===== Stats / Data Section ===== */
.stats-section { background: var(--color-bg-dark); position: relative; overflow: hidden; }
.stats-section::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  opacity: 0.08;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-xl); position: relative; z-index: 1; }
.stat-item { text-align: center; padding: var(--space-xl) 0; }
.stat-item .num { font-size: 2.5rem; font-weight: 800; color: #fff; letter-spacing: -0.02em; }
.stat-item .num span { color: var(--color-primary); }
.stat-item .label { font-size: 0.95rem; color: rgba(255,255,255,0.55); margin-top: var(--space-sm); }
.stat-divider { width: 1px; background: rgba(255,255,255,0.08); align-self: stretch; }
/* ===== Process / Steps ===== */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.step-card { text-align: center; padding: var(--space-xl) var(--space-lg); }
.step-num {
  width: 56px; height: 56px; margin: 0 auto var(--space-lg);
  background: var(--color-primary); color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem; font-weight: 800;
  box-shadow: 0 8px 24px rgba(255,107,53,0.25);
}
.step-card h3 { font-size: 1.1rem; margin-bottom: var(--space-sm); }
.step-card p { font-size: 0.9rem; color: var(--color-text-light); margin-bottom: 0; }
.step-arrow { display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--color-primary); opacity: 0.4; }
/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-md); }
.faq-item {
  background: var(--color-bg-card); border: 1px solid var(--color-border);
  border-radius: var(--radius); overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-lg); cursor: pointer; font-weight: 600; font-size: 1rem;
  color: var(--color-text); background: none; width: 100%; text-align: left;
  transition: color var(--transition);
}
.faq-q i { font-size: 0.85rem; color: var(--color-text-lighter); transition: transform var(--transition); }
.faq-q.open i { transform: rotate(180deg); color: var(--color-primary); }
.faq-q.open { color: var(--color-primary); }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 var(--space-lg);
}
.faq-a.open { max-height: 300px; padding: 0 var(--space-lg) var(--space-lg); }
.faq-a p { font-size: 0.92rem; color: var(--color-text-light); margin-bottom: 0; }
/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--color-secondary) 0%, #0F172A 100%);
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  opacity: 0.06;
}
.cta-content { position: relative; z-index: 1; text-align: center; padding: var(--space-3xl) 0; }
.cta-content h2 { color: #fff; font-size: 2.25rem; margin-bottom: var(--space-md); }
.cta-content p { color: rgba(255,255,255,0.65); max-width: 560px; margin: 0 auto var(--space-xl); font-size: 1.05rem; }
.cta-content .hero-btn { font-size: 1.05rem; padding: 16px 40px; }
.cta-content .hero-btn-primary { box-shadow: 0 8px 32px rgba(255,107,53,0.4); }
.cta-content .hero-btn-primary:hover { box-shadow: 0 12px 48px rgba(255,107,53,0.55); }
.cta-note { font-size: 0.85rem; color: rgba(255,255,255,0.35); margin-top: var(--space-lg); }
/* ===== Footer ===== */
.footer {
  background: var(--color-bg-dark); color: rgba(255,255,255,0.7); padding: var(--space-3xl) 0 var(--space-xl);
}
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-2xl); margin-bottom: var(--space-2xl); }
.footer-brand .logo { color: #fff; font-size: 1.25rem; margin-bottom: var(--space-md); }
.footer-brand .logo span { -webkit-text-fill-color: transparent; }
.footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 0.95rem; margin-bottom: var(--space-lg); font-weight: 600; }
.footer-col a { display: block; font-size: 0.88rem; color: rgba(255,255,255,0.5); margin-bottom: var(--space-sm); transition: color var(--transition); }
.footer-col a:hover { color: var(--color-primary); }
.footer-social { display: flex; gap: var(--space-md); margin-top: var(--space-lg); }
.footer-social a {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.10);
  display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.5);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.footer-social a:hover { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06); padding-top: var(--space-xl);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.85rem; color: rgba(255,255,255,0.35);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--color-primary); }
/* ===== Scroll to Top ===== */
.scroll-top {
  position: fixed; bottom: 80px; right: 24px; z-index: 999;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--color-primary); color: #fff; border: none;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; box-shadow: 0 4px 20px rgba(255,107,53,0.3);
  opacity: 0; visibility: hidden; transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  cursor: pointer;
}
.scroll-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { background: var(--color-primary-dark); transform: translateY(-3px); box-shadow: 0 8px 28px rgba(255,107,53,0.4); }
/* ===== Responsive ===== */
@media (max-width: 1024px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.7rem; }
  .hero h1 { font-size: 2.75rem; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --header-height: 64px; --space-4xl: 48px; --space-3xl: 40px; --space-2xl: 32px; }
  .nav-desktop { display: none; }
  .nav-toggle { display: flex; }
  .bottom-tab { display: block; }
  body { padding-bottom: 56px; }
  .hero { min-height: 80vh; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
  .hero-stats { gap: var(--space-lg); }
  .hero-stat-num { font-size: 1.35rem; }
  .features-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .categories-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .posts-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-divider:nth-child(2) { display: none; }
  .steps-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .step-arrow { transform: rotate(90deg); }
  .footer-top { grid-template-columns: 1fr; text-align: center; }
  .footer-brand p { margin: 0 auto; }
  .footer-social { justify-content: center; }
  .footer-bottom { flex-direction: column; text-align: center; gap: var(--space-sm); }
  .scroll-top { bottom: 72px; right: 16px; width: 40px; height: 40px; }
  .section-header h2 { font-size: 1.5rem; }
  .cta-content h2 { font-size: 1.7rem; }
}
@media (max-width: 520px) {
  .container { padding: 0 var(--space-md); }
  .hero h1 { font-size: 1.65rem; }
  .hero-actions { flex-direction: column; }
  .hero-btn { justify-content: center; }
  .hero-stats { flex-direction: column; gap: var(--space-md); }
  .hero-stat { text-align: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
  .stat-item .num { font-size: 1.75rem; }
  .mobile-drawer a { font-size: 1.2rem; }
}
/* ===== Misc Utilities ===== */
.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-lg { margin-bottom: var(--space-lg); }
.gap-sm { gap: var(--space-sm); }
.flex-center { display: flex; align-items: center; justify-content: center; }
/* ===== Skeleton loading for CMS ===== */
.skeleton { background: linear-gradient(90deg, var(--color-border-light) 25%, #e8ecf0 50%, var(--color-border-light) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-sm); }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --primary-light: #fadbd8;
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --bg: #f8f9fa;
            --bg-alt: #ffffff;
            --bg-dark: #1a1a2e;
            --text: #2c3e50;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border: #e9ecef;
            --border-light: #f1f3f5;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
            --radius-sm: 8px;
            --radius: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --spacing-section: 100px;
            --spacing-block: 60px;
        }

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

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

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }
        button:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 6px;
        }

        ul,
        ol {
            list-style: none;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--secondary);
        }

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

        .container-narrow {
            max-width: 900px;
        }

        /* ===== Header & Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .header.scrolled {
            box-shadow: var(--shadow);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--secondary);
            text-decoration: none;
            transition: opacity var(--transition);
        }
        .logo:hover {
            opacity: 0.85;
            color: var(--secondary);
        }
        .logo i {
            color: var(--primary);
            font-size: 28px;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-desktop a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: background var(--transition), color var(--transition);
            position: relative;
        }
        .nav-desktop a:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        .nav-desktop a.active {
            background: var(--primary);
            color: var(--text-white);
        }
        .nav-desktop a.active:hover {
            background: var(--primary-dark);
        }
        .nav-desktop a.nav-cta {
            background: var(--primary);
            color: var(--text-white);
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 15px rgba(231, 76, 60, 0.35);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .nav-desktop a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(231, 76, 60, 0.45);
            background: var(--primary-dark);
            color: var(--text-white);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--secondary);
            border-radius: 4px;
            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);
        }

        /* 移动端抽屉菜单 */
        .nav-mobile {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 20px 24px 32px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow);
            z-index: 999;
            flex-direction: column;
            gap: 6px;
            max-height: calc(100vh - var(--header-height));
            overflow-y: auto;
        }
        .nav-mobile.open {
            display: flex;
        }
        .nav-mobile a {
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            transition: background var(--transition);
        }
        .nav-mobile a:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        .nav-mobile a.active {
            background: var(--primary);
            color: var(--text-white);
        }
        .nav-mobile a.nav-cta-mobile {
            background: var(--primary);
            color: var(--text-white);
            border-radius: 50px;
            text-align: center;
            padding: 16px;
            margin-top: 10px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            box-shadow: 0 4px 15px rgba(231, 76, 60, 0.35);
        }
        .nav-mobile a.nav-cta-mobile:hover {
            background: var(--primary-dark);
        }

        /* 底部 Tab 导航（移动端） */
        .bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            padding: 4px 0 env(safe-area-inset-bottom, 4px);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.06);
        }
        .bottom-tab-inner {
            display: flex;
            justify-content: space-around;
            align-items: center;
            max-width: 500px;
            margin: 0 auto;
        }
        .bottom-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 8px 12px 4px;
            font-size: 11px;
            font-weight: 500;
            color: var(--text-light);
            transition: color var(--transition);
            border-radius: 12px;
            min-width: 60px;
        }
        .bottom-tab a i {
            font-size: 20px;
            transition: transform var(--transition);
        }
        .bottom-tab a:hover {
            color: var(--primary);
        }
        .bottom-tab a.active {
            color: var(--primary);
        }
        .bottom-tab a.active i {
            transform: scale(1.1);
        }
        .bottom-tab a span {
            font-size: 10px;
            line-height: 1.2;
        }
        .bottom-tab a.nav-cta-tab {
            background: var(--primary);
            color: var(--text-white);
            border-radius: 30px;
            padding: 6px 16px 4px;
            box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
        }
        .bottom-tab a.nav-cta-tab:hover {
            background: var(--primary-dark);
            color: var(--text-white);
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            margin-top: var(--header-height);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--secondary) 0%, #1a1a2e 100%);
            position: relative;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(231, 76, 60, 0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-banner h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 12px;
        }
        .banner-tags .tag {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            color: var(--text-white);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: background var(--transition);
        }
        .banner-tags .tag:hover {
            background: rgba(255, 255, 255, 0.25);
        }
        .banner-tags .tag i {
            margin-right: 6px;
            font-size: 12px;
        }

        /* ===== 分类筛选 ===== */
        .filter-bar {
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
            position: sticky;
            top: var(--header-height);
            z-index: 100;
        }
        .filter-bar .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }
        .filter-bar .filter-label {
            font-weight: 600;
            font-size: 14px;
            color: var(--text-light);
            margin-right: 6px;
        }
        .filter-bar .filter-btn {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            background: var(--bg);
            color: var(--text);
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
        }
        .filter-bar .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-bar .filter-btn.active {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(231, 76, 60, 0.25);
        }
        .filter-bar .filter-btn i {
            margin-right: 6px;
            font-size: 13px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-white);
        }
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title h2 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-title h2 i {
            color: var(--primary);
            margin-right: 10px;
        }
        .section-title p {
            color: var(--text-light);
            font-size: 17px;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .section-title .subtitle-accent {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 36px;
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
        }
        .section-header .more-link {
            font-weight: 600;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .section-header .more-link:hover {
            gap: 12px;
        }

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

        .card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }
        .card-image {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--border);
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-image img {
            transform: scale(1.05);
        }
        .card-image .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: var(--text-white);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
        }
        .card-image .card-badge.live {
            background: #e74c3c;
            animation: pulse-badge 1.5s infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(231, 76, 60, 0.5);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(231, 76, 60, 0);
            }
        }
        .card-image .card-badge.upcoming {
            background: var(--accent);
        }
        .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }
        .card-body .card-tags span {
            background: var(--bg);
            color: var(--text-light);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
        }
        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-body h3 a {
            color: var(--secondary);
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }
        .card-body .card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .card-body .card-meta .meta-item i {
            color: var(--primary);
        }

        /* ===== 特色分类入口 ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .cat-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            text-align: center;
            border: 1px solid var(--border);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            cursor: pointer;
        }
        .cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: var(--primary);
        }
        .cat-card .cat-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 16px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
            transition: background var(--transition), transform var(--transition);
        }
        .cat-card:hover .cat-icon {
            background: var(--primary);
            color: var(--text-white);
            transform: scale(1.05);
        }
        .cat-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .cat-card p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .cat-card .cat-count {
            display: inline-block;
            margin-top: 12px;
            background: var(--bg);
            padding: 2px 14px;
            border-radius: 50px;
            font-size: 12px;
            color: var(--text-light);
            font-weight: 500;
        }

        /* ===== 赛事列表 ===== */
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .match-item {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 20px 28px;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .match-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
            border-color: var(--primary-light);
        }
        .match-item .match-info {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .match-item .match-league {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            background: var(--bg);
            padding: 4px 14px;
            border-radius: 50px;
        }
        .match-item .match-teams {
            display: flex;
            align-items: center;
            gap: 16px;
            font-weight: 700;
            font-size: 17px;
        }
        .match-item .match-teams .vs {
            color: var(--text-light);
            font-weight: 400;
            font-size: 14px;
        }
        .match-item .match-score {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            min-width: 60px;
            text-align: center;
        }
        .match-item .match-time {
            font-size: 14px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .match-item .match-status {
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
        }
        .match-item .match-status.live {
            background: #fde8e8;
            color: #e74c3c;
            animation: pulse-badge 2s infinite;
        }
        .match-item .match-status.upcoming {
            background: #fef3e2;
            color: #e67e22;
        }
        .match-item .match-status.finished {
            background: #e8f5e9;
            color: #27ae60;
        }

        /* ===== 排行榜 / 数据 ===== */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-alt);
            padding: 14px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .rank-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-sm);
        }
        .rank-item .rank-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            background: var(--bg);
            color: var(--text-light);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num {
            background: #fef3e2;
            color: #e67e22;
        }
        .rank-item:nth-child(2) .rank-num {
            background: #f0f0f0;
            color: #7f8c8d;
        }
        .rank-item:nth-child(3) .rank-num {
            background: #fde8e8;
            color: #e74c3c;
        }
        .rank-item .rank-info {
            flex: 1;
        }
        .rank-item .rank-info h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .rank-item .rank-info p {
            font-size: 13px;
            color: var(--text-light);
        }
        .rank-item .rank-stat {
            font-weight: 700;
            font-size: 18px;
            color: var(--primary);
        }

        /* ===== 图文区块 ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .feature-block.reverse {
            direction: rtl;
        }
        .feature-block.reverse>* {
            direction: ltr;
        }
        .feature-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            aspect-ratio: 4/3;
            background: var(--border);
        }
        .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .feature-image:hover img {
            transform: scale(1.03);
        }
        .feature-content h3 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .feature-content h3 i {
            color: var(--primary);
            margin-right: 10px;
        }
        .feature-content p {
            color: var(--text-light);
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 20px;
        }
        .feature-content .feature-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .feature-content .feature-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: var(--text);
        }
        .feature-content .feature-list li i {
            color: var(--primary);
            font-size: 18px;
            width: 24px;
            text-align: center;
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .tag-cloud .tag-item {
            padding: 10px 24px;
            border-radius: 50px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            cursor: pointer;
        }
        .tag-cloud .tag-item:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(231, 76, 60, 0.25);
        }
        .tag-cloud .tag-item i {
            margin-right: 6px;
            font-size: 13px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-alt);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: background var(--transition);
            user-select: none;
        }
        .faq-item .faq-question:hover {
            background: var(--primary-light);
        }
        .faq-item .faq-question i {
            color: var(--primary);
            transition: transform var(--transition);
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA区块 ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--secondary) 0%, #1a1a2e 100%);
            border-radius: var(--radius-lg);
            padding: 60px 50px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(231, 76, 60, 0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-block .container {
            position: relative;
            z-index: 2;
        }
        .cta-block h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-block p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }
        .cta-block .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .cta-block .btn-primary {
            padding: 16px 40px;
            border-radius: 50px;
            background: var(--primary);
            color: var(--text-white);
            font-weight: 600;
            font-size: 17px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 30px rgba(231, 76, 60, 0.4);
            transition: transform var(--transition), box-shadow var(--transition);
            border: none;
        }
        .cta-block .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(231, 76, 60, 0.5);
            color: var(--text-white);
        }
        .cta-block .btn-secondary {
            padding: 16px 40px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.12);
            color: var(--text-white);
            font-weight: 600;
            font-size: 17px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(4px);
            transition: background var(--transition), transform var(--transition);
        }
        .cta-block .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
            color: var(--text-white);
        }

        /* ===== 通用按钮 ===== */
        .btn-primary {
            padding: 14px 32px;
            border-radius: 50px;
            background: var(--primary);
            color: var(--text-white);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: transform var(--transition), box-shadow var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(231, 76, 60, 0.35);
            color: var(--text-white);
        }
        .btn-outline {
            padding: 14px 32px;
            border-radius: 50px;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 2px solid var(--primary);
            transition: background var(--transition), color var(--transition), transform var(--transition);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 70px 0 0;
        }
        .footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: var(--text-white);
            margin-bottom: 16px;
            font-size: 22px;
        }
        .footer-brand .logo i {
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 18px;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-3px);
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            padding: 5px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 6px;
        }
        .footer-bottom {
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom span a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom span a:hover {
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .feature-block {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .feature-block.reverse {
                direction: ltr;
            }
            .page-banner h1 {
                font-size: 34px;
            }
            .section-title h2 {
                font-size: 30px;
            }
            .cta-block {
                padding: 40px 30px;
            }
            .cta-block h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 60px;
                --header-height: 64px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .bottom-tab {
                display: block;
            }
            .page-banner {
                padding: 60px 0 40px;
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 15px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .cat-card {
                padding: 24px 16px 20px;
            }
            .cat-card .cat-icon {
                width: 52px;
                height: 52px;
                font-size: 22px;
            }
            .section-title h2 {
                font-size: 26px;
            }
            .section-title p {
                font-size: 15px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .feature-content h3 {
                font-size: 22px;
            }
            .match-item {
                padding: 16px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .match-item .match-info {
                width: 100%;
                justify-content: space-between;
            }
            .match-item .match-teams {
                font-size: 15px;
                gap: 10px;
                flex-wrap: wrap;
            }
            .match-item .match-score {
                font-size: 18px;
                min-width: auto;
            }
            .filter-bar {
                top: var(--header-height);
                padding: 12px 0;
            }
            .filter-bar .filter-btn {
                padding: 6px 16px;
                font-size: 13px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .cta-block {
                padding: 32px 20px;
                border-radius: var(--radius);
            }
            .cta-block h2 {
                font-size: 24px;
            }
            .cta-block p {
                font-size: 15px;
            }
            .cta-block .btn-primary,
            .cta-block .btn-secondary {
                padding: 14px 28px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }
            .faq-item .faq-question {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 18px 14px;
                font-size: 14px;
            }
            .rank-item {
                padding: 12px 16px;
            }
            .banner-tags .tag {
                font-size: 12px;
                padding: 4px 14px;
            }
            body {
                padding-bottom: 64px;
            }
            .nav-mobile {
                padding: 16px 20px 24px;
            }
        }

        @media (max-width: 520px) {
            .cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .cat-card {
                padding: 18px 12px 16px;
            }
            .cat-card .cat-icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
                margin-bottom: 10px;
            }
            .cat-card h3 {
                font-size: 15px;
            }
            .card-body {
                padding: 16px 18px 18px;
            }
            .card-body h3 {
                font-size: 17px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .page-banner {
                padding: 50px 0 32px;
                min-height: 180px;
            }
            .section-title h2 {
                font-size: 22px;
            }
            .cta-block h2 {
                font-size: 20px;
            }
            .filter-bar .filter-btn {
                font-size: 12px;
                padding: 5px 12px;
            }
            .filter-bar .filter-label {
                display: none;
            }
            .match-item .match-teams {
                font-size: 14px;
            }
            .match-item .match-score {
                font-size: 16px;
            }
            .match-item .match-league {
                font-size: 12px;
                padding: 2px 10px;
            }
            .tag-cloud .tag-item {
                padding: 6px 16px;
                font-size: 13px;
            }
            .bottom-tab a {
                padding: 6px 8px 2px;
                min-width: 48px;
                font-size: 10px;
            }
            .bottom-tab a i {
                font-size: 18px;
            }
            .bottom-tab a span {
                font-size: 9px;
            }
            .bottom-tab a.nav-cta-tab {
                padding: 4px 12px 2px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .container {
                padding: 0 16px;
            }
        }

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

/* roulang page: article */
*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #f1c0c4;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg: #f8f9fa;
            --bg-alt: #ffffff;
            --bg-dark: #1d3557;
            --text: #212529;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border: #dee2e6;
            --radius: 12px;
            --radius-sm: 6px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            padding-top: var(--header-h);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 820px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
            color: var(--text);
        }
        .section-alt .section-title {
            color: var(--text);
        }
        .section-dark .section-title {
            color: var(--text-white);
        }
        .section-sub {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.6;
        }
        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.75);
        }
        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }
        /* ===== Header ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: box-shadow var(--transition);
        }
        .header.scrolled {
            box-shadow: 0 2px 30px rgba(0, 0, 0, 0.08);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary) !important;
            letter-spacing: -0.3px;
        }
        .logo i {
            font-size: 1.6rem;
            color: var(--primary);
        }
        .logo span {
            color: var(--secondary);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-desktop a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            transition: all var(--transition);
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }
        .nav-desktop a.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.10);
            font-weight: 600;
        }
        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-desktop a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-desktop a.nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.3);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            border-radius: 6px;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text);
            border-radius: 2px;
            transition: all 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);
        }
        /* ===== Mobile Nav Drawer ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            padding: 20px 24px 28px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            z-index: 999;
            border-bottom: 2px solid var(--border);
            transform: translateY(-10px);
            opacity: 0;
            transition: all 0.35s ease;
            pointer-events: none;
        }
        .mobile-nav.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav a {
            display: block;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 1.05rem;
            color: var(--text);
            transition: all var(--transition);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .mobile-nav a:hover {
            background: rgba(230, 57, 70, 0.06);
            color: var(--primary);
        }
        .mobile-nav a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(230, 57, 70, 0.08);
        }
        .mobile-nav a.nav-cta {
            background: var(--primary);
            color: #fff;
            text-align: center;
            margin-top: 8px;
            font-weight: 600;
        }
        .mobile-nav a.nav-cta:hover {
            background: var(--primary-dark);
        }
        /* ===== Article Hero ===== */
        .article-hero {
            padding: 60px 0 40px;
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
        }
        .article-hero .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .article-hero .breadcrumb a {
            color: var(--text-light);
        }
        .article-hero .breadcrumb a:hover {
            color: var(--primary);
        }
        .article-hero .breadcrumb .sep {
            color: var(--border);
        }
        .article-hero .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 28px;
            margin-bottom: 20px;
            font-size: 0.95rem;
            color: var(--text-light);
        }
        .article-hero .article-meta .badge {
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .article-hero .article-meta i {
            margin-right: 6px;
            opacity: 0.7;
        }
        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: -0.5px;
        }
        /* ===== Article Body ===== */
        .article-body-wrap {
            padding: 50px 0 60px;
        }
        .article-body {
            font-size: 1.1rem;
            line-height: 1.85;
            color: var(--text);
        }
        .article-body p {
            margin-bottom: 1.5em;
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-top: 2em;
            margin-bottom: 0.8em;
            color: var(--secondary);
        }
        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-top: 1.8em;
            margin-bottom: 0.6em;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.5em;
            padding-left: 1.8em;
        }
        .article-body li {
            margin-bottom: 0.5em;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 2em auto;
            box-shadow: var(--shadow);
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(230, 57, 70, 0.04);
            padding: 16px 24px;
            margin: 1.8em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body a:hover {
            color: var(--primary-dark);
        }
        .article-notfound {
            text-align: center;
            padding: 80px 20px;
        }
        .article-notfound i {
            font-size: 3.6rem;
            color: var(--text-light);
            margin-bottom: 20px;
            opacity: 0.5;
        }
        .article-notfound h2 {
            font-size: 1.8rem;
            color: var(--text);
            margin-bottom: 12px;
        }
        .article-notfound p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .article-notfound .btn {
            display: inline-block;
        }
        /* ===== Share ===== */
        .share-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 28px 0 12px;
            border-top: 1px solid var(--border);
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .share-bar span {
            font-weight: 600;
            color: var(--text-light);
            font-size: 0.95rem;
        }
        .share-bar a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-light);
            font-size: 1.1rem;
            transition: all var(--transition);
            border: 1px solid var(--border);
        }
        .share-bar a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        /* ===== Related Posts ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 28px;
            margin-top: 12px;
        }
        .related-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .related-card img {
            width: 100%;
            height: 170px;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: 18px 20px 22px;
        }
        .related-card .card-body .badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .related-card .card-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 6px;
        }
        .related-card .card-body h4 a {
            color: var(--text);
        }
        .related-card .card-body h4 a:hover {
            color: var(--primary);
        }
        .related-card .card-body .meta {
            font-size: 0.85rem;
            color: var(--text-light);
        }
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-alt);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text);
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(0, 0, 0, 0.02);
        }
        .faq-question i {
            transition: transform var(--transition);
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #112233 100%);
            color: #fff;
            text-align: center;
            padding: 70px 20px;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .cta-section .btn {
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1.05rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .cta-section .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.35);
        }
        .cta-section .btn-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
        }
        .cta-section .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }
        /* ===== Footer ===== */
        .footer {
            background: #111827;
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand .logo span {
            color: #fff;
        }
        .footer-brand .logo i {
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 0.95rem;
            line-height: 1.7;
            opacity: 0.7;
            max-width: 340px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 18px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.92rem;
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            opacity: 0.6;
        }
        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            background: var(--primary);
            color: #fff;
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.3);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .article-hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: block;
            }
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .article-hero {
                padding: 40px 0 28px;
            }
            .article-hero h1 {
                font-size: 1.7rem;
            }
            .article-body {
                font-size: 1rem;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-hero h1 {
                font-size: 1.35rem;
            }
            .article-hero .article-meta {
                font-size: 0.85rem;
                gap: 10px 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section {
                padding: 50px 16px;
            }
            .cta-section .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-sub {
                font-size: 0.95rem;
            }
            .share-bar a {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
        }
        @media (max-width: 380px) {
            .article-hero h1 {
                font-size: 1.2rem;
            }
            .article-body {
                font-size: 0.95rem;
            }
        }
        /* ===== Skeleton / Utility ===== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }