/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #1a3a5c;
  --primary-light: #2a5a8c;
  --primary-dark: #0f2440;
  --accent: #e8a838;
  --accent-light: #f0c060;
  --accent-dark: #c88a20;
  --bg-body: #f5f7fa;
  --bg-white: #ffffff;
  --bg-card: #ffffff;
  --bg-dark: #0f2440;
  --text-primary: #1a2a3a;
  --text-secondary: #4a5a6a;
  --text-muted: #8a9aaa;
  --text-light: #f0f4f8;
  --border: #e2e8f0;
  --border-light: #f0f2f5;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 72px;
  --space-3xl: 96px;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 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(--text-primary);
  background: var(--bg-body);
}
a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
button { cursor: pointer; background: none; }
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
@media (max-width: 768px) {
  .container { padding: 0 var(--space-md); }
}

/* ===== 导航 ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  height: 68px;
}
.header.scrolled { box-shadow: var(--shadow-md); }
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo { font-size: 1.35rem; font-weight: 700; color: var(--primary); letter-spacing: -0.3px; display: flex; align-items: center; gap: var(--space-sm); }
.logo i { color: var(--accent); font-size: 1.5rem; }
.logo span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-desktop { display: flex; align-items: center; gap: var(--space-lg); }
.nav-desktop a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}
.nav-desktop a:hover { color: var(--primary); background: rgba(26,58,92,0.06); }
.nav-desktop a.active { color: var(--primary); font-weight: 600; }
.nav-desktop a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}
.nav-cta {
  background: var(--primary) !important;
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-md) !important;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(26,58,92,0.25);
}
.nav-cta:hover { background: var(--primary-light) !important; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(26,58,92,0.35); }
.nav-toggle { display: none; font-size: 1.4rem; color: var(--primary); padding: var(--space-sm); }

/* ===== 移动端底部导航 ===== */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  padding: 6px 0;
  padding-bottom: env(safe-area-inset-bottom, 6px);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
}
.mobile-bottom-nav .tab-list { display: flex; justify-content: space-around; align-items: center; }
.mobile-bottom-nav .tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 4px 12px;
  color: var(--text-muted);
  font-size: 0.65rem;
  font-weight: 500;
  transition: var(--transition);
  border-radius: var(--radius-sm);
}
.mobile-bottom-nav .tab-item i { font-size: 1.2rem; }
.mobile-bottom-nav .tab-item.active { color: var(--primary); }
.mobile-bottom-nav .tab-item.active i { color: var(--accent); }
.mobile-bottom-nav .tab-item:hover { color: var(--primary); }

/* ===== 移动端抽屉菜单 ===== */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--space-lg);
  flex-direction: column;
  gap: var(--space-md);
  overflow-y: auto;
  opacity: 0;
  transform: translateY(-12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}
.mobile-drawer.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
.mobile-drawer a {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  transition: var(--transition);
  border-bottom: 1px solid var(--border-light);
}
.mobile-drawer a:last-child { border-bottom: none; }
.mobile-drawer a:hover { background: rgba(26,58,92,0.05); color: var(--primary); }
.mobile-drawer a.active { color: var(--primary); font-weight: 600; background: rgba(26,58,92,0.06); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 0 80px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 40%, var(--primary-light) 100%);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.25;
  mix-blend-mode: overlay;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(232,168,56,0.12) 0%, transparent 70%);
}
.hero .container { position: relative; z-index: 2; text-align: center; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 6px 18px;
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--accent-light);
  margin-bottom: var(--space-lg);
  font-weight: 500;
}
.hero-badge i { font-size: 0.8rem; }
.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  letter-spacing: -1px;
  margin-bottom: var(--space-lg);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.hero h1 span { background: linear-gradient(135deg, var(--accent-light), #f5d080); -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: 600px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}
.hero-actions { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; }
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}
.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(232,168,56,0.4);
}
.btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(232,168,56,0.5); color: var(--primary-dark); }
.btn-secondary {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-secondary:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); color: #fff; }
.hero-stats {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}
.hero-stat { text-align: center; }
.hero-stat .num { font-size: 2.2rem; font-weight: 800; color: #fff; letter-spacing: -0.5px; }
.hero-stat .label { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: var(--space-xs); }

/* ===== 通用板块 ===== */
.section { padding: var(--space-3xl) 0; }
.section-bg { background: var(--bg-white); }
.section-dark { background: var(--bg-dark); }
.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
}
.section-title h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  margin-bottom: var(--space-sm);
}
.section-title p {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}
.section-dark .section-title h2 { color: var(--text-light); }
.section-dark .section-title p { color: rgba(255,255,255,0.65); }

/* ===== 平台简介 ===== */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}
.intro-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.intro-image img { width: 100%; height: auto; display: block; transition: var(--transition); }
.intro-image:hover img { transform: scale(1.02); }
.intro-content h3 { font-size: 1.6rem; font-weight: 700; margin-bottom: var(--space-md); color: var(--text-primary); }
.intro-content p { color: var(--text-secondary); line-height: 1.8; margin-bottom: var(--space-md); }
.intro-features { display: flex; flex-direction: column; gap: var(--space-sm); margin-top: var(--space-lg); }
.intro-feature {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-body);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.intro-feature:hover { background: var(--border-light); transform: translateX(4px); }
.intro-feature i { color: var(--accent); font-size: 1.2rem; width: 28px; text-align: center; }
.intro-feature span { font-weight: 500; color: var(--text-primary); }

/* ===== 核心优势 ===== */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}
.advantage-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.advantage-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.advantage-card .icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  font-size: 1.4rem;
  color: #fff;
}
.advantage-card h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: var(--space-sm); }
.advantage-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* ===== 分类入口 ===== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  background: var(--bg-card);
  border: 1px solid var(--border);
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }
.category-card img { width: 100%; height: 200px; object-fit: cover; transition: var(--transition); }
.category-card:hover img { transform: scale(1.05); }
.category-card .body { padding: var(--space-lg); }
.category-card .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-dark);
  background: rgba(232,168,56,0.12);
  padding: 2px 12px;
  border-radius: 100px;
  margin-bottom: var(--space-sm);
}
.category-card h4 { font-size: 1.15rem; font-weight: 600; margin-bottom: var(--space-sm); }
.category-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
.category-card .link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-md);
  font-weight: 600;
  color: var(--primary);
  font-size: 0.9rem;
}
.category-card .link i { transition: var(--transition); }
.category-card:hover .link i { transform: translateX(4px); }

/* ===== 最新资讯 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.news-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.news-card .thumb { width: 100%; height: 180px; object-fit: cover; }
.news-card .body { padding: var(--space-lg); }
.news-card .meta {
  display: flex;
  gap: var(--space-md);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}
.news-card .meta .cat { color: var(--accent-dark); font-weight: 500; }
.news-card h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: var(--space-sm); line-height: 1.4; }
.news-card h4 a { color: var(--text-primary); }
.news-card h4 a:hover { color: var(--primary); }
.news-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }
.news-card .footer-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-md);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
}
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-2xl);
  color: var(--text-muted);
  font-size: 1rem;
  background: var(--bg-body);
  border-radius: var(--radius-md);
}

/* ===== 使用流程 ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  counter-reset: step;
}
.step-card {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  position: relative;
}
.step-card::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 auto var(--space-md);
}
.step-card h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: var(--space-sm); }
.step-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }
.step-connector { display: none; }

/* ===== 平台特色 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}
.feature-card {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.feature-card .icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}
.feature-card .body h4 { font-size: 1rem; font-weight: 600; margin-bottom: var(--space-xs); }
.feature-card .body p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-md); }
.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--accent); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-primary);
}
.faq-question i { color: var(--text-muted); transition: var(--transition); font-size: 0.9rem; }
.faq-item.open .faq-question i { transform: rotate(180deg); color: var(--accent); }
.faq-answer {
  max-height: 0;
  padding: 0 var(--space-lg);
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 var(--space-lg) var(--space-lg);
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  overflow: hidden;
}
.cta-section .bg-glow {
  position: absolute;
  top: -40%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232,168,56,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 { font-size: 2.2rem; font-weight: 700; color: #fff; margin-bottom: var(--space-md); }
.cta-section p { color: rgba(255,255,255,0.7); max-width: 560px; margin: 0 auto var(--space-xl); font-size: 1.05rem; }
.cta-section .btn-primary { font-size: 1.05rem; padding: 16px 40px; }

/* ===== 页脚 ===== */
.footer {
  background: var(--bg-dark);
  padding: var(--space-2xl) 0 var(--space-xl);
  color: rgba(255,255,255,0.7);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}
.footer-brand .logo { color: #fff; margin-bottom: var(--space-md); }
.footer-brand .logo i { color: var(--accent); }
.footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; max-width: 300px; }
.footer-col h5 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: var(--space-md); }
.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  padding: 4px 0;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.85rem;
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 2.8rem; }
}
@media (max-width: 768px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: block; }
  .mobile-bottom-nav { display: block; }
  .mobile-drawer { display: flex; }
  .header { height: 60px; }
  .header .container { height: 60px; }
  .hero { min-height: auto; padding: 100px 0 60px; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
  .hero-stats { gap: var(--space-lg); margin-top: var(--space-xl); }
  .hero-stat .num { font-size: 1.6rem; }
  .intro-grid { grid-template-columns: 1fr; }
  .advantage-grid { grid-template-columns: 1fr 1fr; }
  .category-grid { grid-template-columns: 1fr 1fr; }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: var(--space-2xl) 0; }
  .section-title h2 { font-size: 1.6rem; }
  .cta-section h2 { font-size: 1.6rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .feature-card { flex-direction: column; gap: var(--space-md); }
}
@media (max-width: 520px) {
  .container { padding: 0 var(--space-md); }
  .hero h1 { font-size: 1.6rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
  .advantage-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section-title h2 { font-size: 1.4rem; }
  .hero-stat .num { font-size: 1.3rem; }
  .intro-feature { padding: var(--space-sm) var(--space-md); }
}

/* roulang page: article */
/* ===== Design Variables ===== */
    :root {
        --primary: #2563eb;
        --primary-dark: #1d4ed8;
        --primary-light: #60a5fa;
        --secondary: #f59e0b;
        --secondary-dark: #d97706;
        --accent: #10b981;
        --bg: #0f172a;
        --bg-alt: #1e293b;
        --bg-card: #1e293b;
        --bg-section: #0f172a;
        --text: #f1f5f9;
        --text-muted: #94a3b8;
        --text-dim: #64748b;
        --border: #334155;
        --border-light: #475569;
        --radius: 16px;
        --radius-sm: 10px;
        --radius-xs: 6px;
        --shadow: 0 8px 32px rgba(0,0,0,0.3);
        --shadow-sm: 0 4px 16px rgba(0,0,0,0.2);
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        --container: 1200px;
        --header-h: 72px;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
        font-family: var(--font);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text);
        background: var(--bg);
        min-height: 100vh;
        padding-top: var(--header-h);
    }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--secondary); }
    button, input, textarea { font-family: inherit; font-size: 1rem; }
    ul { list-style: none; }

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

    /* ===== Header ===== */
    .header {
        position: fixed;
        top: 0; left: 0; right: 0;
        height: var(--header-h);
        background: rgba(15, 23, 42, 0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        z-index: 1000;
        transition: var(--transition);
    }
    .header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.35rem;
        font-weight: 700;
        color: var(--text) !important;
        letter-spacing: -0.3px;
    }
    .logo i { color: var(--secondary); font-size: 1.5rem; }
    .logo span { background: linear-gradient(135deg, var(--text), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .nav-desktop { display: flex; align-items: center; gap: 6px; }
    .nav-desktop a {
        padding: 8px 18px;
        border-radius: var(--radius-xs);
        color: var(--text-muted);
        font-size: 0.925rem;
        font-weight: 500;
        transition: var(--transition);
        position: relative;
    }
    .nav-desktop a:hover { color: var(--text); background: rgba(255,255,255,0.06); }
    .nav-desktop a.active {
        color: var(--text);
        background: rgba(37, 99, 235, 0.15);
    }
    .nav-desktop a.active::after {
        content: '';
        position: absolute;
        bottom: 2px; left: 50%;
        transform: translateX(-50%);
        width: 20px; height: 3px;
        background: var(--primary);
        border-radius: 3px;
    }
    .nav-desktop a.nav-cta {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff !important;
        padding: 8px 22px;
        border-radius: 50px;
        font-weight: 600;
        margin-left: 10px;
    }
    .nav-desktop a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,0.35); }
    .nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.6rem; cursor: pointer; padding: 6px; }

    /* ===== Mobile Bottom Tab ===== */
    .mobile-tab {
        display: none;
        position: fixed;
        bottom: 0; left: 0; right: 0;
        background: rgba(15, 23, 42, 0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: 1px solid var(--border);
        z-index: 999;
        padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
        justify-content: space-around;
        align-items: center;
    }
    .mobile-tab a {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2px;
        color: var(--text-muted);
        font-size: 0.7rem;
        padding: 6px 12px;
        border-radius: var(--radius-xs);
        transition: var(--transition);
    }
    .mobile-tab a i { font-size: 1.2rem; }
    .mobile-tab a.active { color: var(--secondary); }
    .mobile-tab a:hover { color: var(--text); background: rgba(255,255,255,0.05); }

    /* ===== Hero Banner ===== */
    .article-hero {
        position: relative;
        padding: 80px 0 60px;
        background: linear-gradient(135deg, rgba(15,23,42,0.92), rgba(30,41,59,0.88)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        border-bottom: 1px solid var(--border);
    }
    .article-hero .container { position: relative; z-index: 2; }
    .article-hero-bread {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.85rem;
        color: var(--text-muted);
        margin-bottom: 24px;
        flex-wrap: wrap;
    }
    .article-hero-bread a { color: var(--text-muted); }
    .article-hero-bread a:hover { color: var(--primary-light); }
    .article-hero-bread i { font-size: 0.7rem; color: var(--text-dim); }
    .article-hero h1 {
        font-size: 2.4rem;
        font-weight: 800;
        line-height: 1.3;
        color: var(--text);
        max-width: 860px;
        letter-spacing: -0.5px;
        margin-bottom: 20px;
    }
    .article-hero-meta {
        display: flex;
        align-items: center;
        gap: 24px;
        flex-wrap: wrap;
        font-size: 0.9rem;
        color: var(--text-muted);
    }
    .article-hero-meta .tag {
        display: inline-block;
        padding: 4px 14px;
        background: rgba(37,99,235,0.15);
        color: var(--primary-light);
        border-radius: 50px;
        font-size: 0.8rem;
        font-weight: 500;
    }
    .article-hero-meta i { margin-right: 6px; color: var(--text-dim); }

    /* ===== Article Body ===== */
    .article-body {
        padding: 60px 0 80px;
    }
    .article-layout {
        display: grid;
        grid-template-columns: 1fr 320px;
        gap: 48px;
        align-items: start;
    }
    .article-main {
        background: var(--bg-alt);
        border-radius: var(--radius);
        padding: 40px 44px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
    }
    .article-main .content {
        font-size: 1.05rem;
        line-height: 1.85;
        color: var(--text);
    }
    .article-main .content p { margin-bottom: 1.4em; }
    .article-main .content h2, .article-main .content h3 {
        margin-top: 1.8em;
        margin-bottom: 0.6em;
        font-weight: 700;
        color: var(--text);
        line-height: 1.35;
    }
    .article-main .content h2 { font-size: 1.6rem; }
    .article-main .content h3 { font-size: 1.25rem; }
    .article-main .content ul, .article-main .content ol {
        margin: 1em 0;
        padding-left: 1.6em;
        color: var(--text-muted);
    }
    .article-main .content li { margin-bottom: 0.5em; }
    .article-main .content img {
        margin: 1.8em 0;
        border-radius: var(--radius-sm);
        box-shadow: var(--shadow-sm);
        width: 100%;
    }
    .article-main .content blockquote {
        border-left: 4px solid var(--primary);
        background: rgba(37,99,235,0.08);
        padding: 16px 24px;
        margin: 1.6em 0;
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-muted);
        font-style: italic;
    }
    .article-main .content a { color: var(--primary-light); text-decoration: underline; }
    .article-main .content a:hover { color: var(--secondary); }
    .article-not-found {
        text-align: center;
        padding: 80px 20px;
    }
    .article-not-found i { font-size: 4rem; color: var(--text-dim); margin-bottom: 20px; }
    .article-not-found h2 { font-size: 1.8rem; color: var(--text); margin-bottom: 12px; }
    .article-not-found p { color: var(--text-muted); margin-bottom: 24px; }
    .article-not-found .btn-back { display: inline-block; padding: 12px 32px; background: var(--primary); color: #fff; border-radius: 50px; font-weight: 600; }
    .article-not-found .btn-back:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,0.35); }

    /* ===== Sidebar ===== */
    .article-sidebar {
        display: flex;
        flex-direction: column;
        gap: 28px;
    }
    .sidebar-card {
        background: var(--bg-alt);
        border-radius: var(--radius);
        padding: 28px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
    }
    .sidebar-card h4 {
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 18px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .sidebar-card h4 i { color: var(--secondary); font-size: 1rem; }
    .sidebar-card .list-item {
        display: flex;
        gap: 14px;
        padding: 12px 0;
        border-bottom: 1px solid var(--border);
        align-items: flex-start;
    }
    .sidebar-card .list-item:last-child { border-bottom: none; }
    .sidebar-card .list-item img {
        width: 60px; height: 60px;
        border-radius: var(--radius-xs);
        object-fit: cover;
        flex-shrink: 0;
    }
    .sidebar-card .list-item .info { flex: 1; }
    .sidebar-card .list-item .info a {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--text);
        line-height: 1.4;
        display: block;
        transition: var(--transition);
    }
    .sidebar-card .list-item .info a:hover { color: var(--primary-light); }
    .sidebar-card .list-item .info span {
        font-size: 0.78rem;
        color: var(--text-dim);
        margin-top: 4px;
        display: block;
    }
    .sidebar-card .tag-list {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .sidebar-card .tag-list a {
        padding: 4px 14px;
        background: rgba(255,255,255,0.04);
        border: 1px solid var(--border);
        border-radius: 50px;
        font-size: 0.8rem;
        color: var(--text-muted);
        transition: var(--transition);
    }
    .sidebar-card .tag-list a:hover { background: rgba(37,99,235,0.12); border-color: var(--primary); color: var(--primary-light); }
    .sidebar-cta {
        background: linear-gradient(135deg, rgba(37,99,235,0.12), rgba(245,158,11,0.08));
        border: 1px solid rgba(37,99,235,0.2);
    }
    .sidebar-cta p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; }
    .sidebar-cta .btn-block {
        display: block;
        width: 100%;
        padding: 12px;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff;
        text-align: center;
        border-radius: 50px;
        font-weight: 600;
        transition: var(--transition);
    }
    .sidebar-cta .btn-block:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,0.3); }

    /* ===== Related Section ===== */
    .related-section {
        padding: 60px 0 80px;
        background: var(--bg-section);
        border-top: 1px solid var(--border);
    }
    .related-section .section-title {
        font-size: 1.8rem;
        font-weight: 800;
        text-align: center;
        margin-bottom: 12px;
        color: var(--text);
    }
    .related-section .section-sub {
        text-align: center;
        color: var(--text-muted);
        margin-bottom: 40px;
        font-size: 1rem;
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .related-card {
        background: var(--bg-alt);
        border-radius: var(--radius);
        overflow: hidden;
        border: 1px solid var(--border);
        transition: var(--transition);
        box-shadow: var(--shadow-sm);
    }
    .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-light); }
    .related-card img {
        width: 100%; height: 200px;
        object-fit: cover;
        border-radius: 0;
    }
    .related-card .info { padding: 20px 22px 24px; }
    .related-card .info h3 { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 8px; line-height: 1.4; }
    .related-card .info h3 a { color: var(--text); }
    .related-card .info h3 a:hover { color: var(--primary-light); }
    .related-card .info p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }
    .related-card .info .meta { display: flex; align-items: center; gap: 12px; margin-top: 14px; font-size: 0.78rem; color: var(--text-dim); }

    /* ===== Footer ===== */
    .footer {
        background: var(--bg-alt);
        border-top: 1px solid var(--border);
        padding: 56px 0 30px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.8fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 36px;
    }
    .footer-brand .logo { font-size: 1.25rem; margin-bottom: 16px; }
    .footer-brand p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; max-width: 360px; }
    .footer-col h5 { font-size: 0.95rem; font-weight: 700; color: var(--text); margin-bottom: 18px; }
    .footer-col a {
        display: block;
        font-size: 0.88rem;
        color: var(--text-muted);
        padding: 5px 0;
        transition: var(--transition);
    }
    .footer-col a:hover { color: var(--primary-light); padding-left: 4px; }
    .footer-bottom {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        padding-top: 24px;
        border-top: 1px solid var(--border);
        font-size: 0.82rem;
        color: var(--text-dim);
    }
    .footer-bottom a { color: var(--text-muted); }
    .footer-bottom a:hover { color: var(--primary-light); }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .article-layout { grid-template-columns: 1fr; }
        .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
        .related-grid { grid-template-columns: repeat(2, 1fr); }
        .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
        .nav-desktop { display: none; }
        .nav-toggle { display: block; }
        .mobile-tab { display: flex; }
        body { padding-bottom: 70px; }
        .article-hero { padding: 50px 0 40px; }
        .article-hero h1 { font-size: 1.7rem; }
        .article-main { padding: 24px 20px; }
        .article-main .content { font-size: 0.98rem; }
        .article-sidebar { grid-template-columns: 1fr; }
        .related-grid { grid-template-columns: 1fr; }
        .footer-grid { grid-template-columns: 1fr; gap: 28px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .article-hero-meta { gap: 14px; }
    }
    @media (max-width: 520px) {
        .article-hero h1 { font-size: 1.4rem; }
        .article-main { padding: 18px 14px; }
        .sidebar-card { padding: 20px; }
        .related-card .info { padding: 16px; }
    }

    /* ===== Mobile Nav Overlay ===== */
    .mobile-nav-overlay {
        position: fixed;
        top: var(--header-h); left: 0; right: 0; bottom: 0;
        background: rgba(15,23,42,0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        display: none;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 20px;
        z-index: 998;
        padding: 40px 24px;
    }
    .mobile-nav-overlay.open { display: flex; }
    .mobile-nav-overlay a {
        font-size: 1.3rem;
        color: var(--text-muted);
        font-weight: 600;
        padding: 12px 24px;
        border-radius: var(--radius-sm);
        transition: var(--transition);
        width: 100%;
        text-align: center;
    }
    .mobile-nav-overlay a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
    .mobile-nav-overlay a.active { color: var(--secondary); }
    .mobile-nav-overlay a.nav-cta-mobile {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff !important;
        border-radius: 50px;
        margin-top: 12px;
    }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2b4d7a;
            --accent: #f4a261;
            --bg: #f8f9fa;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text: #2b2d42;
            --text-light: #6c757d;
            --text-white: #f8f9fa;
            --border: #e0e0e0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --spacing-section: 80px;
            --spacing-block: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--header-height);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== 头部 & 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            z-index: 1000;
            transition: var(--transition);
            box-shadow: var(--shadow-nav);
        }

        .header .container {
            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: 800;
            color: var(--text);
            text-decoration: none;
            transition: var(--transition);
        }
        .logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.85;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-desktop a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2.5px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-desktop a:hover {
            color: var(--text);
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .nav-desktop a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-desktop a.active::after {
            width: 100%;
        }
        .nav-desktop .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .nav-desktop .nav-cta::after {
            display: none;
        }
        .nav-desktop .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.4);
        }

        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.6rem;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        /* 移动端导航面板 */
        .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;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            border-bottom: 1px solid var(--border);
            z-index: 999;
            transform: translateY(-120%);
            opacity: 0;
            transition: var(--transition);
        }
        .nav-mobile.open {
            transform: translateY(0);
            opacity: 1;
        }
        .nav-mobile a {
            display: block;
            padding: 14px 0;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: var(--transition);
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .nav-mobile a:hover {
            color: var(--primary);
            padding-left: 8px;
        }
        .nav-mobile a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-mobile .nav-cta-mobile {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 12px;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            border-radius: 50px;
            font-weight: 600;
            border-bottom: none;
            width: auto;
        }
        .nav-mobile .nav-cta-mobile:hover {
            padding-left: 28px;
            transform: translateX(4px);
        }

        /* 移动端底部 Tab 导航 */
        .bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            z-index: 1000;
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
        }
        .bottom-tab .tab-inner {
            display: flex;
            justify-content: space-around;
            align-items: center;
            max-width: 480px;
            margin: 0 auto;
        }
        .bottom-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-light);
            text-decoration: none;
            transition: var(--transition);
            border-radius: var(--radius-sm);
        }
        .bottom-tab a i {
            font-size: 1.3rem;
            transition: var(--transition);
        }
        .bottom-tab a:hover,
        .bottom-tab a.active {
            color: var(--primary);
        }
        .bottom-tab a.active i {
            transform: scale(1.1);
        }
        .bottom-tab a .tab-label {
            font-size: 0.65rem;
            letter-spacing: 0.3px;
        }

        /* ===== Hero / 横幅 ===== */
        .page-hero {
            position: relative;
            padding: 80px 0 72px;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--bg-dark) 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .page-hero h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .page-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }
        .page-hero .hero-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--text-white);
            font-weight: 500;
        }
        .page-hero .hero-tags span i {
            color: var(--accent);
        }

        /* ===== 分类筛选 ===== */
        .filter-bar {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
            position: sticky;
            top: var(--header-height);
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .filter-bar .filter-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }
        .filter-bar .filter-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-right: 8px;
        }
        .filter-bar .filter-btn {
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            background: var(--bg);
            color: var(--text-light);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-bar .filter-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }
        .filter-bar .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.25);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text);
            letter-spacing: -0.3px;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 28px;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid rgba(0, 0, 0, 0.04);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card .card-body {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            margin-bottom: 10px;
            width: fit-content;
        }
        .card .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
            line-height: 1.4;
        }
        .card .card-title a {
            color: inherit;
        }
        .card .card-title a:hover {
            color: var(--primary);
        }
        .card .card-desc {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: auto;
        }
        .card .card-meta i {
            color: var(--primary-light);
            width: 16px;
        }
        .card .card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== 特色赛事 ===== */
        .featured-section {
            background: var(--bg-card);
        }

        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .featured-grid .featured-img {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            width: 100%;
            height: 400px;
            object-fit: cover;
        }
        .featured-grid .featured-content h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text);
        }
        .featured-grid .featured-content p {
            font-size: 1rem;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .featured-grid .featured-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .featured-grid .featured-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.95rem;
            color: var(--text);
        }
        .featured-grid .featured-list li i {
            color: var(--primary);
            margin-top: 4px;
            min-width: 20px;
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--secondary), var(--bg-dark));
            color: var(--text-white);
            padding: 60px 0;
        }
        .stats-section .section-title {
            color: var(--text-white);
        }
        .stats-section .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stats-grid .stat-item {
            padding: 24px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
        }
        .stats-grid .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }
        .stats-grid .stat-item .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }
        .stats-grid .stat-item i {
            font-size: 1.8rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        /* ===== 赛事流程 ===== */
        .flow-section {
            background: var(--bg);
        }
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .flow-step {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: var(--transition);
            position: relative;
        }
        .flow-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .flow-step .step-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: #fff;
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.25);
        }
        .flow-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .flow-step p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-card);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: rgba(0, 0, 0, 0.02);
            transition: var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            background: rgba(230, 57, 70, 0.04);
        }
        .faq-item .faq-q i {
            transition: var(--transition);
            color: var(--primary);
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            background: rgba(0, 0, 0, 0.01);
        }
        .faq-item.open .faq-a {
            padding: 0 24px 20px;
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            padding: 72px 0;
            text-align: center;
            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: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 800;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 580px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            background: #fff;
            color: var(--primary) !important;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }
        .cta-section .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px;
            margin-top: auto;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer .footer-brand .logo i {
            color: var(--primary-light);
        }
        .footer .footer-brand .logo span {
            -webkit-text-fill-color: #fff;
            background: none;
        }
        .footer .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer .footer-col h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 按钮通用 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.25);
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.35);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            :root {
                --spacing-section: 60px;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-mobile {
                display: block;
            }
            .bottom-tab {
                display: block;
            }
            body {
                padding-bottom: 64px;
            }
            :root {
                --spacing-section: 48px;
                --header-height: 64px;
            }
            .page-hero {
                padding: 56px 0 48px;
                min-height: 240px;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .page-hero .hero-tags span {
                font-size: 0.78rem;
                padding: 6px 14px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stats-grid .stat-item .stat-number {
                font-size: 2rem;
            }
            .flow-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .featured-grid .featured-img {
                height: 240px;
            }
            .filter-bar .filter-inner {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 4px;
                -webkit-overflow-scrolling: touch;
            }
            .filter-bar .filter-btn {
                white-space: nowrap;
                flex-shrink: 0;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section .cta-btn {
                padding: 14px 30px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .page-hero p {
                font-size: 0.92rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stats-grid .stat-item {
                padding: 16px 12px;
            }
            .stats-grid .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .card .card-body {
                padding: 16px 18px 20px;
            }
            .featured-grid .featured-content h3 {
                font-size: 1.4rem;
            }
            .bottom-tab a {
                padding: 4px 8px;
            }
            .bottom-tab a i {
                font-size: 1.1rem;
            }
            .bottom-tab a .tab-label {
                font-size: 0.6rem;
            }
        }