/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #E8422E;
  --primary-light: #FF6B4A;
  --primary-dark: #C72E1B;
  --secondary: #1B2A4A;
  --accent: #FFB800;
  --bg: #F7F8FC;
  --bg-dark: #131C2E;
  --text: #141824;
  --text-light: #5A6478;
  --border: #E8EAEF;
  --white: #ffffff;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(20,24,36,0.06);
  --shadow-md: 0 8px 24px rgba(20,24,36,0.08);
  --shadow-lg: 0 16px 40px rgba(20,24,36,0.12);
  --transition: all 0.3s ease;
  --header-h: 72px;
  --mobile-nav-h: 60px;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }
:focus-visible { outline: 3px solid rgba(232,66,46,0.4); outline-offset: 2px; border-radius: 4px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-dark { background: var(--bg-dark); color: #fff; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 15px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(232,66,46,0.3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,66,46,0.4); }
.btn-primary:active { transform: translateY(0); }
.btn-accent { background: var(--accent); color: #1B2A4A; box-shadow: 0 4px 14px rgba(255,184,0,0.3); }
.btn-accent:hover { background: #F0AD00; transform: translateY(-2px); }
.btn-outline { border-color: var(--border); color: var(--text); background: #fff; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: #fff8f7; }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: #f0f0f0; transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 16px 40px; font-size: 17px; }
.btn-block { width: 100%; }

/* ===== 徽章 / 标签 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 30px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.6;
}
.badge-red { background: #FFF1EE; color: var(--primary); }
.badge-blue { background: #EAF0FF; color: #3355CC; }
.badge-gold { background: #FFF7E0; color: #B47900; }
.badge-gray { background: #F1F2F5; color: #5A6478; }
.badge-green { background: #E8FAF0; color: #0E9F6E; }

/* ===== Header 导航 ===== */
.site-header {
  position: sticky;
  top: 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);
  height: var(--header-h);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--secondary);
  letter-spacing: -0.5px;
  white-space: nowrap;
}
.brand i { color: var(--primary); font-size: 24px; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 9px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  border-radius: 40px;
  transition: var(--transition);
}
.main-nav a:hover { color: var(--primary); background: #FFF1EE; }
.main-nav a.active { color: var(--primary); background: #FFF1EE; font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 12px; }

/* ===== Hero 首屏 ===== */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(19,28,46,0.92) 0%, rgba(19,28,46,0.75) 50%, rgba(19,28,46,0.35) 100%);
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -60px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232,66,46,0.3), transparent 70%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero-content { max-width: 640px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 40px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(8px);
  margin-bottom: 28px;
}
.hero-badge i { color: var(--accent); animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.5} }
.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 18px;
  letter-spacing: -1px;
}
.hero h1 span { color: var(--accent); }
.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255,255,255,0.85);
  margin-bottom: 34px;
  max-width: 480px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-metrics {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-metric .num { font-size: 26px; font-weight: 800; color: var(--accent); }
.hero-metric .label { font-size: 13px; color: rgba(255,255,255,0.7); }

/* ===== 实时状态条 ===== */
.ticker {
  background: var(--primary);
  color: #fff;
  padding: 12px 0;
  overflow: hidden;
  position: relative;
}
.ticker-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  white-space: nowrap;
  animation: ticker-scroll 24s linear infinite;
}
@keyframes ticker-scroll { 0% { transform: translateX(100%); } 100% { transform: translateX(-100%); } }
.ticker-item { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; }
.ticker-item i { color: var(--accent); }

/* ===== 板块通用 ===== */
.section-tag {
  display: inline-block;
  padding: 5px 16px;
  border-radius: 30px;
  background: #FFF1EE;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; margin-bottom: 44px; }
.section-title { font-size: 32px; font-weight: 800; line-height: 1.25; color: var(--text); letter-spacing: -0.5px; }
.section-desc { font-size: 15px; color: var(--text-light); margin-top: 8px; }

/* ===== 核心说明卡片 ===== */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}
.feature-icon i { color: #fff; }
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ===== 分类入口 ===== */
.category-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.category-card {
  display: block;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.category-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover img { transform: scale(1.06); }
.category-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(19,28,46,0.85) 0%, rgba(19,28,46,0.3) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  color: #fff;
}
.category-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}
.category-name { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.category-desc { font-size: 14px; color: rgba(255,255,255,0.85); margin-bottom: 12px; }
.category-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--accent); }

/* ===== 内容列表 ===== */
.posts-section { background: #fff; }
.posts-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.post-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.post-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); background: #fff; }
.post-card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.post-date { font-size: 13px; color: var(--text-light); display: inline-flex; align-items: center; gap: 6px; }
.post-title { font-size: 18px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; }
.post-title a:hover { color: var(--primary); }
.post-summary { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; flex: 1; }
.post-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary); }
.post-link:hover { gap: 10px; }
.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  padding: 40px;
  color: var(--text-light);
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border);
}

/* ===== 数据统计 ===== */
.stats-section { background: var(--bg-dark); color: #fff; position: relative; overflow: hidden; }
.stats-section::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232,66,46,0.3), transparent 70%);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item { padding: 20px; }
.stat-num { font-size: 48px; font-weight: 800; line-height: 1.2; background: linear-gradient(135deg, var(--accent), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 15px; color: rgba(255,255,255,0.6); margin-top: 8px; }

/* ===== 使用流程 ===== */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  border: 1px solid var(--border);
  text-align: center;
  position: relative;
  transition: var(--transition);
}
.step-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--secondary);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.step-card:nth-child(2) .step-num { background: var(--primary); }
.step-card:nth-child(3) .step-num { background: var(--accent); }
.step-card:nth-child(4) .step-num { background: #0E9F6E; }
.step-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ===== FAQ ===== */
.faq-section { background: #fff; }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
  cursor: pointer;
}
.faq-item:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.faq-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.faq-item h3 i { color: var(--primary); font-size: 18px; flex-shrink: 0; }
.faq-item p { font-size: 14px; color: var(--text-light); line-height: 1.8; }

/* ===== CTA ===== */
.cta-section {
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  position: relative;
  color: #fff;
  text-align: center;
  padding: 100px 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(232,66,46,0.92), rgba(19,28,46,0.85));
}
.cta-inner { position: relative; z-index: 2; max-width: 560px; margin: 0 auto; }
.cta-inner h2 { font-size: 38px; font-weight: 800; margin-bottom: 18px; }
.cta-inner p { font-size: 17px; color: rgba(255,255,255,0.85); margin-bottom: 32px; line-height: 1.8; }
.cta-inner .btn { margin: 0 8px; }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: #fff;
  padding: 64px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand { font-size: 20px; font-weight: 800; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.footer-brand i { color: var(--primary); }
.footer-about { font-size: 14px; color: rgba(255,255,255,0.65); line-height: 1.8; max-width: 320px; }
.footer-column h4 { font-size: 16px; font-weight: 700; margin-bottom: 16px; color: #fff; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.65); transition: var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ===== 移动端底部 Tab ===== */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--mobile-nav-h);
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  z-index: 1000;
  align-items: stretch;
}
.mobile-bottom-nav a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-light);
  transition: var(--transition);
}
.mobile-bottom-nav a i { font-size: 18px; }
.mobile-bottom-nav a.active { color: var(--primary); }
.mobile-bottom-nav a:hover { color: var(--primary); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .main-nav { display: none; }
  .hero { min-height: 540px; }
  .hero h1 { font-size: 32px; }
  .hero-desc { font-size: 16px; }
  .hero-metrics { gap: 20px; flex-wrap: wrap; }
  .category-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn { width: 100%; }
  .mobile-bottom-nav { display: flex; }
  body { padding-bottom: var(--mobile-nav-h); }
  .features-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 26px; }
  .section-title { font-size: 24px; }
  .posts-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .stats-section::before { display: none; }
  .cta-inner h2 { font-size: 28px; }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
    :root {
      --primary: #2b6de8;
      --primary-dark: #1a4ec2;
      --primary-light: #eaf1fe;
      --accent: #ff8538;
      --accent-dark: #e56a20;
      --accent-light: #fff3e9;
      --success: #1fa05c;
      --success-light: #e6f7ee;
      --bg-body: #f4f7fb;
      --bg-white: #ffffff;
      --bg-dark: #101b30;
      --text-main: #152238;
      --text-weak: #5c6b84;
      --border: #e2e8f2;
      --radius-lg: 18px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-sm: 0 4px 16px rgba(21, 34, 56, 0.06);
      --shadow-md: 0 10px 32px rgba(21, 34, 56, 0.1);
      --shadow-lg: 0 18px 44px rgba(21, 34, 56, 0.14);
      --header-height: 72px;
      --tabbar-height: 62px;
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    html { scroll-behavior: smooth; }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
      background: var(--bg-body);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      padding-bottom: var(--tabbar-height);
    }

    body, p, h1, h2, h3, h4, h5, h6 { margin: 0; }
    ul, ol { list-style: none; margin: 0; padding: 0; }
    a { text-decoration: none; color: inherit; transition: color .25s ease; }
    img { max-width: 100%; display: block; }
    button, input, select, textarea { font-family: inherit; }

    /* Foundation 容器定制 */
    .grid-container {
      max-width: 1200px;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* ========== 按钮 ========== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      border-radius: 999px;
      font-weight: 600;
      font-size: 15px;
      border: none;
      cursor: pointer;
      transition: all .25s ease;
      white-space: nowrap;
      line-height: 1.4;
    }
    .btn:focus-visible {
      outline: 3px solid rgba(43, 109, 232, .4);
      outline-offset: 2px;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 8px 22px rgba(43, 109, 232, .3);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(43, 109, 232, .4);
    }
    .btn-primary:active { transform: translateY(0); }
    .btn-outline {
      background: rgba(255, 255, 255, .08);
      color: #fff;
      border: 1.5px solid rgba(255, 255, 255, .75);
      backdrop-filter: blur(4px);
    }
    .btn-outline:hover {
      background: rgba(255, 255, 255, .16);
      border-color: #fff;
    }
    .btn-light {
      background: #fff;
      color: var(--primary);
      box-shadow: 0 8px 20px rgba(0, 0, 0, .12);
    }
    .btn-light:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
    }
    .btn-lg { padding: 15px 38px; font-size: 16px; }
    .btn-sm { padding: 8px 20px; font-size: 14px; }

    /* ========== 头部导航 ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 900;
      background: rgba(255, 255, 255, .92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: var(--header-height);
      gap: 20px;
    }
    .brand {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 9px;
      letter-spacing: -.2px;
    }
    .brand i { font-size: 18px; color: var(--accent); }
    .main-nav { display: flex; gap: 32px; align-items: center; }
    .main-nav a {
      font-weight: 500;
      color: var(--text-weak);
      padding: 8px 2px;
      position: relative;
      font-size: 15px;
    }
    .main-nav a:hover { color: var(--primary); }
    .main-nav a.active { color: var(--primary); font-weight: 600; }
    .main-nav a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 3px;
      border-radius: 3px;
      background: var(--primary);
    }

    /* ========== 移动端底部 Tab ========== */
    .mobile-tabs {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 999;
      background: rgba(255, 255, 255, .96);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-top: 1px solid var(--border);
      box-shadow: 0 -6px 24px rgba(21, 34, 56, .08);
      padding-bottom: env(safe-area-inset-bottom);
    }
    .tab-item {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 8px 0 9px;
      font-size: 12px;
      color: var(--text-weak);
      gap: 2px;
      transition: color .2s ease;
    }
    .tab-item i { font-size: 20px; color: var(--text-weak); transition: color .2s ease; }
    .tab-item.active { color: var(--primary); font-weight: 600; }
    .tab-item.active i { color: var(--primary); }
    .tab-item:active { opacity: .7; }

    /* ========== 页面 Hero ========== */
    .page-hero {
      position: relative;
      padding: 108px 0 120px;
      background-size: cover;
      background-position: center;
      color: #fff;
      text-align: center;
      overflow: hidden;
    }
    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(16, 27, 48, .88) 0%, rgba(43, 109, 232, .78) 100%);
      z-index: 1;
    }
    .page-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      opacity: .25;
      z-index: 0;
    }
    .hero-content { position: relative; z-index: 2; max-width: 780px; margin: 0 auto; }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, .14);
      border: 1px solid rgba(255, 255, 255, .25);
      backdrop-filter: blur(4px);
      padding: 7px 18px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 20px;
    }
    .hero-badge i { color: #ffd166; }
    .hero-content h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -.5px;
      margin-bottom: 16px;
      text-shadow: 0 4px 24px rgba(0, 0, 0, .3);
    }
    .hero-content p {
      font-size: 17px;
      opacity: .9;
      margin-bottom: 32px;
      line-height: 1.8;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* ========== 实时状态条 ========== */
    .status-bar {
      background: linear-gradient(90deg, #149a52, #1fa05c, #24b469);
      color: #fff;
    }
    .status-items {
      display: flex;
      align-items: center;
      gap: 30px;
      padding: 12px 0;
      font-size: 14px;
      font-weight: 500;
      flex-wrap: wrap;
    }
    .status-items i { margin-right: 6px; }
    .status-dot i { color: #ffd166; font-size: 10px; vertical-align: 2px; }
    .status-item { margin-right: 0; }

    /* ========== 实时动态滚动条 ========== */
    .live-ticker {
      background: var(--accent-light);
      border-bottom: 1px solid #ffe1c9;
      overflow: hidden;
    }
    .ticker-inner {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 10px 0;
      white-space: nowrap;
    }
    .ticker-label {
      flex-shrink: 0;
      background: var(--accent);
      color: #fff;
      border-radius: 6px;
      padding: 3px 12px;
      font-size: 13px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }
    .ticker-text {
      color: var(--text-weak);
      font-size: 14px;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    /* ========== 面包屑 ========== */
    .breadcrumb {
      background: #fff;
      border-bottom: 1px solid var(--border);
      padding: 14px 0;
      font-size: 14px;
      color: var(--text-weak);
    }
    .breadcrumb a { color: var(--text-weak); }
    .breadcrumb a:hover { color: var(--primary); }
    .breadcrumb .sep { margin: 0 8px; font-size: 11px; color: #b0bacb; }
    .breadcrumb .current { color: var(--text-main); font-weight: 500; }

    /* ========== 板块通用 ========== */
    .section { padding: 96px 0; }
    .section-alt { background: #fff; }
    .section-dark { background: var(--bg-dark); color: #fff; }
    .section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 2px;
      color: var(--primary);
      background: var(--primary-light);
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 12px;
      text-transform: uppercase;
    }
    .section-head h2 { font-size: 34px; font-weight: 800; letter-spacing: -.5px; margin-bottom: 12px; }
    .section-head p { color: var(--text-weak); font-size: 16px; }

    /* ========== 快速上手步骤 ========== */
    .step-card {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 36px 26px 32px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border);
      position: relative;
      height: 100%;
      transition: all .3s ease;
      overflow: hidden;
    }
    .step-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(43, 109, 232, .3);
    }
    .step-num {
      position: absolute;
      top: 14px;
      right: 20px;
      font-size: 40px;
      font-weight: 800;
      color: rgba(43, 109, 232, .1);
      line-height: 1;
    }
    .step-icon {
      font-size: 44px;
      color: var(--primary);
      margin-bottom: 18px;
      display: block;
    }
    .step-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
    .step-card p { font-size: 14px; color: var(--text-weak); line-height: 1.75; }

    /* ========== 内容卡片 ========== */
    .content-card {
      background: #fff;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: all .3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .content-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
    }
    .content-card img {
      width: 100%;
      height: 200px;
      -o-object-fit: cover;
         object-fit: cover;
    }
    .card-body { padding: 26px; display: flex; flex-direction: column; flex: 1; }
    .badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
      align-self: flex-start;
    }
    .card-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
    .card-body p { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin-bottom: 16px; flex: 1; }
    .card-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .card-link:hover { color: var(--accent); gap: 10px; }
    .card-link i { font-size: 13px; }

    /* ========== 数据统计 ========== */
    .data-item {
      text-align: center;
      padding: 44px 20px;
      background: rgba(255, 255, 255, .05);
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: var(--radius-lg);
      transition: background .3s ease;
    }
    .data-item:hover { background: rgba(255, 255, 255, .1); }
    .data-num {
      display: block;
      font-size: 42px;
      font-weight: 800;
      color: #ffc257;
      line-height: 1.2;
      margin-bottom: 8px;
      letter-spacing: -1px;
    }
    .data-label { font-size: 15px; color: rgba(255, 255, 255, .78); }

    /* ========== FAQ ========== */
    .faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: border-color .25s ease, box-shadow .25s ease;
      overflow: hidden;
    }
    .faq-item[open] { border-color: rgba(43, 109, 232, .45); box-shadow: var(--shadow-md); }
    .faq-item summary {
      cursor: pointer;
      padding: 20px 24px;
      font-weight: 600;
      font-size: 16px;
      display: flex;
      align-items: center;
      gap: 14px;
      list-style: none;
      position: relative;
      padding-right: 52px;
      color: var(--text-main);
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      position: absolute;
      right: 22px;
      color: var(--primary);
      transition: transform .3s ease;
    }
    .faq-item[open] summary::after { transform: rotate(180deg); }
    .faq-item p {
      padding: 0 24px 22px 24px;
      color: var(--text-weak);
      font-size: 15px;
      line-height: 1.8;
    }

    /* ========== CTA / 福利 ========== */
    .cta-section { padding: 60px 0 96px; }
    .cta-box {
      background: linear-gradient(120deg, #2b6de8 0%, #7b5ce0 60%, #9b6bff 100%);
      border-radius: 24px;
      padding: 56px 64px;
      color: #fff;
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
      flex-wrap: wrap;
      box-shadow: 0 24px 60px rgba(43, 109, 232, .3);
    }
    .cta-box::before {
      content: "";
      position: absolute;
      top: -80px;
      right: -80px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .08);
    }
    .cta-box::after {
      content: "";
      position: absolute;
      bottom: -100px;
      left: 30%;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .06);
    }
    .cta-content { position: relative; z-index: 2; flex: 1 1 380px; }
    .cta-content h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; }
    .cta-content p { font-size: 15px; opacity: .9; line-height: 1.7; max-width: 520px; }
    .cta-countdown { position: relative; z-index: 2; text-align: center; flex-shrink: 0; }
    .cta-countdown .cd-label { font-size: 14px; opacity: .85; margin-bottom: 10px; display: block; }
    .countdown-items { display: flex; gap: 10px; justify-content: center; }
    .countdown-item {
      background: rgba(255, 255, 255, .16);
      backdrop-filter: blur(4px);
      border: 1px solid rgba(255, 255, 255, .25);
      border-radius: 12px;
      min-width: 68px;
      padding: 10px 8px;
      text-align: center;
    }
    .countdown-item span { display: block; font-size: 30px; font-weight: 800; line-height: 1.2; }
    .countdown-item em { font-style: normal; font-size: 12px; opacity: .75; display: block; margin-top: 2px; }
    .cta-btn-wrap { position: relative; z-index: 2; flex-basis: 100%; text-align: center; margin-top: 12px; }

    /* ========== 页脚 ========== */
    .site-footer {
      background: var(--bg-dark);
      color: rgba(255, 255, 255, .7);
      padding: 64px 0 36px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 40px;
    }
    .footer-brand {
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      display: inline-flex;
      align-items: center;
      gap: 9px;
    }
    .footer-brand i { color: var(--accent); }
    .footer-about {
      margin-top: 14px;
      font-size: 14px;
      line-height: 1.8;
      max-width: 350px;
      color: rgba(255, 255, 255, .6);
    }
    .footer-grid h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a {
      color: rgba(255, 255, 255, .65);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .footer-links a:hover { color: #fff; }
    .footer-links i { width: 16px; text-align: center; color: var(--accent); }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .12);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
      color: rgba(255, 255, 255, .5);
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1024px) {
      .section { padding: 76px 0; }
      .section-head h2 { font-size: 30px; }
      .hero-content h1 { font-size: 36px; }
      .cta-box { padding: 44px 36px; }
      .footer-grid { gap: 32px; }
    }

    @media (max-width: 768px) {
      :root { --header-height: 60px; }
      body { padding-bottom: 0; }
      .site-header .main-nav,
      .site-header .header-actions { display: none; }
      .header-inner { justify-content: center; }
      .mobile-tabs { display: flex; }
      .page-hero { padding: 64px 0 80px; }
      .hero-content h1 { font-size: 28px; }
      .hero-content p { font-size: 15px; }
      .hero-actions .btn { width: 100%; }
      .section { padding: 56px 0; }
      .section-head { margin-bottom: 36px; }
      .section-head h2 { font-size: 26px; }
      .section-head p { font-size: 14px; }
      .cta-box { padding: 36px 24px; flex-direction: column; text-align: center; gap: 24px; }
      .cta-content p { margin-left: auto; margin-right: auto; }
      .cta-countdown { width: 100%; }
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
      .footer-bottom { flex-direction: column; text-align: center; }
      .status-items { gap: 12px 20px; font-size: 13px; }
      .live-ticker { display: none; }
    }

    @media (max-width: 520px) {
      .grid-container { padding-left: 16px; padding-right: 16px; }
      .hero-content h1 { font-size: 24px; }
      .hero-badge { font-size: 13px; }
      .btn-lg { padding: 13px 28px; font-size: 15px; }
      .step-card { padding: 28px 18px; }
      .step-icon { font-size: 36px; }
      .content-card img { height: 160px; }
      .card-body { padding: 20px; }
      .data-num { font-size: 34px; }
      .faq-item summary { font-size: 15px; padding: 16px 18px; padding-right: 44px; }
      .faq-item p { padding: 0 18px 16px; font-size: 14px; }
      .footer-brand { font-size: 18px; }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }

/* roulang page: article */
:root {
  --primary: #2B4BFF;
  --primary-dark: #1C35C7;
  --primary-light: #E9EDFF;
  --accent: #FF6B35;
  --accent-dark: #E5541F;
  --accent-light: #FFF1EA;
  --dark: #0A0F1C;
  --dark-2: #121A2E;
  --bg: #F5F7FC;
  --white: #FFFFFF;
  --text: #18213A;
  --text-light: #64748B;
  --border: #E4E9F2;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow-sm: 0 2px 10px rgba(10, 15, 28, 0.05);
  --shadow: 0 8px 28px rgba(10, 15, 28, 0.08);
  --shadow-lg: 0 18px 48px rgba(10, 15, 28, 0.14);
  --transition: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  padding-bottom: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(228, 233, 242, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.2px;
  color: var(--dark);
  white-space: nowrap;
}

.brand i {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 1rem;
  box-shadow: 0 6px 16px rgba(43, 75, 255, 0.3);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-light);
  transition: all var(--transition);
}

.main-nav a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.main-nav a.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 6px 18px rgba(43, 75, 255, 0.28);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 700;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1.2;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 8px 20px rgba(43, 75, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(43, 75, 255, 0.35);
}

.btn-accent {
  background: linear-gradient(135deg, #FF8A50, var(--accent));
  color: #fff;
  box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 107, 53, 0.4);
}

.btn-lg {
  padding: 16px 42px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.85rem;
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 72px 0 80px;
  color: #fff;
  background: linear-gradient(135deg, rgba(10, 15, 28, 0.94) 0%, rgba(43, 75, 255, 0.8) 60%, rgba(255, 107, 53, 0.5) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 28px;
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb .divider {
  opacity: 0.5;
}

.article-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.3;
  max-width: 880px;
  margin-bottom: 18px;
}

.hero-desc {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
}

.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.2;
}

.badge-primary {
  background: var(--primary-light);
  color: var(--primary);
}

.badge-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

/* ===== Article Card / Body ===== */
.article-section {
  padding: 60px 0 40px;
}

.article-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(228, 233, 242, 0.7);
  padding: clamp(1.4rem, 4vw, 3rem);
  margin-bottom: 40px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding-bottom: 20px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.88rem;
  color: var(--text-light);
}

.article-body {
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--text);
  word-break: break-word;
}

.article-body h2 {
  font-size: 1.55rem;
  font-weight: 800;
  margin: 2.2rem 0 1rem;
  color: var(--dark);
  line-height: 1.45;
}

.article-body h3 {
  font-size: 1.28rem;
  font-weight: 700;
  margin: 1.8rem 0 0.8rem;
  color: var(--dark);
}

.article-body h4 {
  font-weight: 700;
  font-size: 1.1rem;
  margin: 1.4rem 0 0.6rem;
  color: var(--dark);
}

.article-body p {
  margin: 0 0 1.2rem;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.2rem 1.5rem;
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 0.5rem;
}

.article-body img {
  max-width: 100%;
  border-radius: 12px;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-sm);
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 1rem 1.25rem;
  border-radius: 0 10px 10px 0;
  margin: 1.5rem 0;
  color: var(--text-light);
}

.article-body a {
  color: var(--primary);
  text-decoration: underline;
  word-break: break-all;
}

.article-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.tags-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-light);
  margin-right: 4px;
}

.tag-chip {
  display: inline-block;
  padding: 5px 13px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-light);
  transition: all var(--transition);
}

.tag-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.article-share {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-light);
}

.share-btn {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-light);
  font-size: 0.88rem;
  transition: all var(--transition);
}

.share-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(43, 75, 255, 0.28);
}

.not-found-card {
  text-align: center;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 72px 32px;
  border: 1px solid var(--border);
}

.not-found-card i {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 18px;
}

.not-found-card h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--dark);
}

.not-found-card p {
  color: var(--text-light);
  margin-bottom: 24px;
  font-size: 1rem;
}

/* ===== Related News ===== */
.related-section {
  padding: 50px 0 70px;
  background: var(--bg);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 50px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-light);
  font-size: 1rem;
}

.related-grid {
  align-items: stretch;
}

.news-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

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

.news-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.news-card:hover .news-thumb img {
  transform: scale(1.05);
}

.news-cat {
  position: absolute;
  left: 14px;
  top: 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  box-shadow: 0 2px 10px rgba(10, 15, 28, 0.08);
}

.news-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.news-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--dark);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-body p {
  color: var(--text-light);
  font-size: 0.88rem;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-light);
}

.read-more {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.read-more i {
  transition: transform var(--transition);
}

.news-card:hover .read-more i {
  transform: translateX(4px);
}

.empty-tip {
  text-align: center;
  padding: 40px 0;
  color: var(--text-light);
  font-size: 1rem;
  grid-column: 1 / -1;
}

/* ===== Process ===== */
.process-section {
  padding: 80px 0;
  background: linear-gradient(160deg, #0A0F1C 0%, #101A33 60%, #1B2A55 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.process-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: 0.25;
  pointer-events: none;
}

.process-section .container {
  position: relative;
  z-index: 1;
}

.process-section .section-head h2 {
  color: #fff;
}

.process-section .section-head p {
  color: rgba(255, 255, 255, 0.7);
}

.process-section .section-tag {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.process-grid {
  margin-top: 10px;
}

.step-card {
  position: relative;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 32px 26px;
  text-align: center;
  height: 100%;
  transition: all var(--transition);
  backdrop-filter: blur(8px);
  overflow: hidden;
}

.step-card:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 107, 53, 0.6);
}

.step-num {
  position: absolute;
  top: 14px;
  right: 20px;
  font-size: 2.2rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.12);
  line-height: 1;
}

.step-card > i {
  font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-card p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 0;
  background: var(--bg);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.faq-item:hover {
  border-color: rgba(43, 75, 255, 0.4);
  box-shadow: var(--shadow);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.85rem;
  color: var(--primary);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-item[open] {
  border-color: rgba(43, 75, 255, 0.35);
}

.faq-item p {
  padding: 0 24px 22px;
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, rgba(10, 15, 28, 0.95), rgba(43, 75, 255, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  text-align: center;
}

.cta-box {
  max-width: 640px;
  margin: 0 auto;
}

.cta-box h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-box p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 30px;
  font-size: 1.05rem;
}

/* ===== Footer ===== */
.site-footer {
  background: #0B1220;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand i {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 0.95rem;
}

.footer-about {
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  max-width: 320px;
}

.site-footer h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
}

.footer-links a:hover {
  color: #fff;
  transform: translateX(4px);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 28px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ===== Mobile Tabbar ===== */
.mobile-tabbar {
  display: none;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .header-inner {
    gap: 12px;
  }

  .main-nav {
    gap: 0;
  }

  .main-nav a {
    padding: 10px 13px;
    font-size: 0.88rem;
  }

  .footer-grid {
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .main-nav,
  .header-actions {
    display: none;
  }

  .header-inner {
    min-height: 60px;
    justify-content: center;
  }

  .brand {
    font-size: 1.1rem;
  }

  .article-hero {
    padding: 48px 0 56px;
  }

  .article-hero h1 {
    font-size: 1.6rem;
    line-height: 1.35;
  }

  .hero-desc {
    font-size: 0.95rem;
  }

  .article-section {
    padding: 32px 0 24px;
  }

  .article-card {
    padding: 1.4rem;
    margin-bottom: 24px;
    border-radius: 14px;
  }

  .article-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .related-section {
    padding: 40px 0 56px;
  }

  .process-section {
    padding: 56px 0;
  }

  .faq-section {
    padding: 56px 0;
  }

  .cta-section {
    padding: 56px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .mobile-tabbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 300;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-top: 1px solid var(--border);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    padding: 8px 4px calc(8px + env(safe-area-inset-bottom));
    box-shadow: 0 -4px 20px rgba(10, 15, 28, 0.06);
  }

  body {
    padding-bottom: 64px;
  }

  .tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 6px 0;
    font-size: 0.68rem;
    color: var(--text-light);
    transition: all 0.2s ease;
  }

  .tab-item i {
    font-size: 1.2rem;
  }

  .tab-item.active,
  .tab-item:hover {
    color: var(--primary);
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .hero-meta {
    gap: 12px;
    font-size: 0.82rem;
  }

  .article-body {
    font-size: 0.98rem;
  }

  .article-body h2 {
    font-size: 1.35rem;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .step-card {
    padding: 26px 20px;
  }

  .btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
  }
}

/* roulang page: category2 */
:root {
  --primary: #e7342e;
  --primary-dark: #c92019;
  --primary-light: #ff7770;
  --secondary: #161b29;
  --secondary-soft: #252c3d;
  --accent: #ffc845;
  --bg-light: #f5f6fa;
  --bg-dark: #10141f;
  --text-main: #1f2430;
  --text-weak: #6b7280;
  --border: #e6e9f0;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(16, 20, 31, .08);
  --shadow-hover: 0 16px 44px rgba(16, 20, 31, .16);
  --header-h: 72px;
  --container-w: 1200px;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; color: var(--text-main); background: #fff; line-height: 1.7; -webkit-font-smoothing: antialiased; margin: 0; padding: 0; }
body { font-size: 16px; overflow-x: hidden; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-main); margin: 0 0 .5em; }
p { margin: 0 0 1em; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { margin: 0 0 1em; padding-left: 1.25rem; }
input, button, textarea, select { font-family: inherit; font-size: inherit; }
button { cursor: pointer; border: none; background: none; }
:focus-visible { outline: 3px solid rgba(231, 52, 46, .45); outline-offset: 2px; border-radius: 4px; }

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

/* ===== 按钮 ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; font-size: 15px; padding: 14px 30px; border-radius: 999px; transition: all .3s ease; border: 2px solid transparent; line-height: 1.2; }
.btn-sm { padding: 9px 20px; font-size: 14px; border-radius: 999px; }
.btn-primary { background: var(--primary); color: #fff !important; box-shadow: 0 6px 20px rgba(231, 52, 46, .32); }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 10px 28px rgba(231, 52, 46, .4); transform: translateY(-2px); }
.btn-outline { border-color: rgba(255,255,255,.65); color: #fff; background: rgba(255,255,255,.08); backdrop-filter: blur(6px); }
.btn-outline:hover { background: rgba(255,255,255,.16); color: #fff; transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--primary) !important; box-shadow: 0 6px 18px rgba(0,0,0,.12); }
.btn-light:hover { background: #f4f4f8; transform: translateY(-2px); box-shadow: 0 10px 26px rgba(0,0,0,.16); }

/* ===== Header ===== */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 999; height: var(--header-h); background: rgba(255,255,255,.88); backdrop-filter: blur(14px); border-bottom: 1px solid var(--border); transition: box-shadow .3s ease; }
.site-header.scrolled { box-shadow: 0 6px 20px rgba(16,20,31,.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--text-main); letter-spacing: -.3px; }
.brand i { width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; border-radius: 12px; font-size: 16px; box-shadow: 0 4px 14px rgba(231,52,46,.35); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a { padding: 9px 18px; border-radius: 999px; font-size: 15px; font-weight: 500; color: var(--text-main); }
.main-nav a:hover { background: var(--bg-light); color: var(--primary); }
.main-nav a.active { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; box-shadow: 0 4px 14px rgba(231,52,46,.3); }
.header-actions { display: flex; align-items: center; gap: 10px; }

/* ===== 移动端底部 Tab ===== */
.bottom-tab { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 998; background: rgba(255,255,255,.96); backdrop-filter: blur(14px); border-top: 1px solid var(--border); box-shadow: 0 -4px 18px rgba(16,20,31,.06); padding-bottom: env(safe-area-inset-bottom); }
.tab-item { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 9px 4px 7px; color: var(--text-weak); font-size: 11px; gap: 3px; border-radius: 12px; transition: all .2s ease; }
.tab-item i { font-size: 19px; transition: transform .2s ease; }
.tab-item.active { color: var(--primary); font-weight: 600; }
.tab-item.active i { transform: translateY(-2px); }
.tab-item:active { background: var(--bg-light); }
.tab-download { color: #fff; background: var(--primary); margin: 6px 8px; border-radius: 14px; padding: 8px 4px; box-shadow: 0 4px 14px rgba(231,52,46,.34); }
.tab-download i { font-size: 17px; }
.tab-download span { font-weight: 600; }
.tab-download.active { color: #fff; }

/* ===== Page Hero ===== */
.page-hero { position: relative; padding: 160px 0 120px; background: var(--bg-dark); background-image: url(/assets/images/backpic/back-1.png); background-size: cover; background-position: center; color: #fff; }
.page-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(16,20,31,.88) 20%, rgba(16,20,31,.55) 60%, rgba(16,20,31,.3)); }
.page-hero .container { position: relative; z-index: 2; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.22); padding: 7px 18px; border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: .5px; color: #ffe1c4; margin-bottom: 22px; backdrop-filter: blur(4px); }
.hero-eyebrow i { color: var(--accent); }
.page-hero h1 { font-size: 54px; margin: 0 0 16px; letter-spacing: -1.5px; color: #fff; }
.page-hero h1 span { background: linear-gradient(135deg, #fff7ea, var(--accent)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-desc { font-size: 18px; max-width: 640px; color: rgba(255,255,255,.84); margin-bottom: 30px; line-height: 1.8; }
.hero-live { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-bottom: 34px; }
.live-pill { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18); border-radius: 999px; padding: 8px 18px; font-size: 13px; color: rgba(255,255,255,.88); backdrop-filter: blur(4px); }
.live-pill .dot { position: relative; width: 8px; height: 8px; border-radius: 50%; background: #3ddb7f; }
.live-pill .dot::after { content: ""; position: absolute; inset: -4px; border-radius: 50%; background: rgba(61,219,127,.35); animation: pulse 1.6s infinite; }
@keyframes pulse { 0% { transform: scale(.6); opacity: .9; } 100% { transform: scale(1.6); opacity: 0; } }
.countdown-pill { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,200,69,.14); border: 1px solid rgba(255,200,69,.35); border-radius: 999px; padding: 8px 18px; font-size: 13px; color: #ffd980; }
.countdown-pill .timer { font-weight: 800; letter-spacing: .5px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }
.hero-meta .meta-item { display: flex; align-items: center; gap: 10px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); border-radius: 14px; padding: 12px 20px; backdrop-filter: blur(4px); }
.hero-meta .meta-item i { font-size: 18px; color: var(--accent); }
.hero-meta .meta-item span { font-size: 13px; color: rgba(255,255,255,.8); }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,.72); margin-bottom: 24px; }
.breadcrumb a { color: rgba(255,255,255,.72); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: .5; }

/* ===== Section 通用 ===== */
.section { padding: 90px 0; }
.section-sm { padding: 60px 0; }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-weight: 700; font-size: 14px; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 10px; }
.section-kicker i { font-size: 13px; }
.section-head h2 { font-size: 38px; letter-spacing: -.8px; margin-bottom: 12px; }
.section-head p { color: var(--text-weak); font-size: 16px; margin: 0; }

/* ===== 功能标签 ===== */
.tag-filter { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 44px; }
.tag-chip { padding: 10px 22px; border-radius: 999px; background: #fff; border: 1.5px solid var(--border); color: var(--text-main); font-size: 14px; font-weight: 500; transition: all .25s ease; display: inline-flex; align-items: center; gap: 8px; }
.tag-chip:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.tag-chip.active { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; border-color: transparent; box-shadow: 0 6px 18px rgba(231,52,46,.32); }
.tag-chip i { font-size: 13px; }

/* ===== 功能卡片 ===== */
.func-card { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); padding: 34px 32px; height: 100%; transition: all .35s ease; position: relative; overflow: hidden; }
.func-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); opacity: 0; transition: opacity .3s ease; }
.func-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); border-color: transparent; }
.func-card:hover::before { opacity: 1; }
.func-icon { width: 56px; height: 56px; display: inline-flex; align-items: center; justify-content: center; border-radius: 16px; font-size: 22px; margin-bottom: 20px; background: linear-gradient(135deg, rgba(231,52,46,.12), rgba(255,200,69,.12)); color: var(--primary); }
.func-card h3 { font-size: 19px; margin-bottom: 10px; }
.func-card p { color: var(--text-weak); font-size: 14px; margin-bottom: 18px; line-height: 1.75; }
.func-card .func-tag { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; color: var(--primary); background: rgba(231,52,46,.08); padding: 5px 13px; border-radius: 999px; }
.func-card .func-tag i { font-size: 10px; }

/* ===== 图文特色 ===== */
.feature-box { background: #fff; border-radius: 24px; border: 1px solid var(--border); overflow: hidden; height: 100%; transition: all .35s ease; box-shadow: 0 4px 18px rgba(16,20,31,.04); }
.feature-box:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
.feature-media { overflow: hidden; aspect-ratio: 16/10; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.feature-box:hover .feature-media img { transform: scale(1.06); }
.feature-body { padding: 30px 30px 34px; }
.feature-body .fk { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 700; font-size: 13px; letter-spacing: .8px; margin-bottom: 12px; }
.feature-body h3 { font-size: 23px; margin-bottom: 12px; }
.feature-body p { color: var(--text-weak); font-size: 15px; line-height: 1.8; }
.feature-list { list-style: none; margin: 18px 0 0; padding: 0; }
.feature-list li { display: flex; align-items: flex-start; gap: 10px; padding: 8px 0; font-size: 14px; color: var(--text-main); }
.feature-list li i { color: var(--primary); margin-top: 4px; font-size: 13px; }

/* ===== 数据统计 ===== */
.stats-section { background: var(--bg-dark); background-image: url(/assets/images/backpic/back-2.png); background-size: cover; background-position: center; position: relative; padding: 100px 0; color: #fff; }
.stats-section::before { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse at center, rgba(231,52,46,.35), rgba(16,20,31,.92)); }
.stats-section .container { position: relative; z-index: 2; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-item { text-align: center; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: 20px; padding: 36px 20px; backdrop-filter: blur(8px); transition: all .3s ease; }
.stat-item:hover { transform: translateY(-4px); border-color: rgba(255,255,255,.22); }
.stat-number { font-size: 42px; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 6px; }
.stat-number i { font-size: 28px; color: var(--accent); vertical-align: 6px; margin-right: 4px; }
.stat-label { font-size: 14px; color: rgba(255,255,255,.78); letter-spacing: .5px; }
.stats-title { text-align: center; color: #fff; font-size: 36px; letter-spacing: -.6px; margin-bottom: 10px; }
.stats-sub { text-align: center; color: rgba(255,255,255,.75); margin-bottom: 48px; }

/* ===== 教程列表 ===== */
.tutorial-card { display: flex; flex-wrap: wrap; background: #fff; border-radius: 20px; border: 1px solid var(--border); box-shadow: 0 4px 18px rgba(16,20,31,.05); overflow: hidden; margin-bottom: 24px; transition: all .35s ease; }
.tutorial-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: transparent; }
.tutorial-cover { flex: 0 0 260px; min-height: 180px; overflow: hidden; }
.tutorial-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.tutorial-card:hover .tutorial-cover img { transform: scale(1.06); }
.tutorial-body { flex: 1 1 320px; padding: 26px 30px; display: flex; flex-direction: column; justify-content: center; }
.tutorial-tag { display: inline-flex; align-items: center; gap: 6px; align-self: flex-start; background: rgba(231,52,46,.08); color: var(--primary); font-size: 12px; font-weight: 600; padding: 5px 14px; border-radius: 999px; margin-bottom: 12px; }
.tutorial-body h3 { font-size: 18px; margin-bottom: 8px; }
.tutorial-body p { color: var(--text-weak); font-size: 14px; margin-bottom: 14px; }
.tutorial-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: #9aa1af; }
.tutorial-meta span { display: inline-flex; align-items: center; gap: 6px; }
.tutorial-meta i { font-size: 12px; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 16px; margin-bottom: 14px; overflow: hidden; transition: all .3s ease; }
.faq-item:hover { border-color: rgba(231,52,46,.3); }
.faq-item summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 26px; cursor: pointer; font-weight: 600; font-size: 16px; transition: background .25s ease; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .icon { flex-shrink: 0; width: 30px; height: 30px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(231,52,46,.08); color: var(--primary); font-size: 13px; transition: all .3s ease; }
.faq-item[open] summary { color: var(--primary); }
.faq-item[open] summary .icon { background: var(--primary); color: #fff; transform: rotate(45deg); }
.faq-answer { padding: 0 26px 22px; color: var(--text-weak); font-size: 15px; line-height: 1.8; }

/* ===== CTA 行动区 ===== */
.cta-section { padding: 100px 0; background: linear-gradient(135deg, var(--secondary), #222b40); position: relative; overflow: hidden; }
.cta-section::after { content: ""; position: absolute; right: -120px; top: -120px; width: 380px; height: 380px; background: radial-gradient(circle, rgba(231,52,46,.5), transparent 60%); border-radius: 50%; }
.cta-inner { position: relative; z-index: 2; text-align: center; max-width: 720px; margin: 0 auto; color: #fff; }
.cta-inner h2 { font-size: 40px; color: #fff; margin-bottom: 16px; letter-spacing: -.8px; }
.cta-inner p { color: rgba(255,255,255,.8); font-size: 17px; margin-bottom: 34px; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.cta-note { margin-top: 22px; font-size: 13px; color: rgba(255,255,255,.55); }

/* ===== Footer ===== */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,.72); padding: 70px 0 90px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-brand i { width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; border-radius: 11px; font-size: 15px; }
.footer-about { font-size: 14px; line-height: 1.8; max-width: 320px; color: rgba(255,255,255,.58); }
.site-footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 11px; }
.footer-links a { color: rgba(255,255,255,.58); font-size: 14px; display: inline-flex; align-items: center; gap: 8px; transition: all .25s ease; }
.footer-links a:hover { color: #fff; transform: translateX(4px); }
.footer-links a i { font-size: 12px; color: var(--accent); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; padding-top: 28px; font-size: 13px; color: rgba(255,255,255,.4); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .page-hero h1 { font-size: 44px; }
  .section-head h2 { font-size: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .site-header { height: 62px; }
  .header-inner { height: 62px; }
  .brand { font-size: 16px; gap: 7px; }
  .brand i { width: 32px; height: 32px; font-size: 14px; border-radius: 10px; }
  .main-nav { display: none; }
  .header-actions .btn-sm { padding: 7px 15px; font-size: 12px; }
  .bottom-tab { display: flex; }
  body { padding-bottom: 64px; }
  .page-hero { padding: 120px 0 80px; }
  .page-hero h1 { font-size: 34px; }
  .hero-desc { font-size: 16px; }
  .section { padding: 60px 0; }
  .section-head h2 { font-size: 28px; }
  .section-head p { font-size: 14px; }
  .func-card { padding: 26px 22px; }
  .feature-body { padding: 22px 20px 26px; }
  .tutorial-cover { flex-basis: 100%; min-height: 160px; max-height: 180px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-number { font-size: 32px; }
  .cta-inner h2 { font-size: 30px; }
  .cta-section { padding: 70px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .site-footer { padding-bottom: 70px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .container { padding: 0 18px; }
}
@media (max-width: 520px) {
  .hero-actions .btn { width: 100%; }
  .hero-meta { flex-direction: column; }
  .live-pill, .countdown-pill { width: 100%; justify-content: center; }
  .stats-grid { gap: 12px; }
  .stat-item { padding: 24px 12px; }
  .stat-number { font-size: 26px; }
  .stat-label { font-size: 12px; }
  .cta-actions .btn { width: 100%; }
  .header-actions .btn-sm { display: none; }
  .bottom-tab .tab-item i { font-size: 17px; }
}