/* roulang page: index */
:root {
  --primary: #2E90FA;
  --primary-dark: #1B6FD8;
  --accent-cyan: #00E5FF;
  --accent-amber: #FFB900;
  --accent-red: #FF4757;
  --bg-dark: #060B18;
  --bg-panel: #0D1526;
  --glass-bg: rgba(255,255,255,0.06);
  --glass-bg-2: rgba(255,255,255,0.03);
  --text-primary: #F1F5F9;
  --text-secondary: #98A2B3;
  --text-muted: #64748B;
  --border-light: rgba(255,255,255,0.1);
  --border-hover: rgba(0,229,255,0.4);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 40px rgba(46,144,250,0.18);
  --shadow-glow: 0 0 20px rgba(46,144,250,0.4);
  --font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --transition: 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: color var(--transition), border-color var(--transition); }
img { max-width: 100%; height: auto; }
button, input { font-family: inherit; }
ul, ol { list-style: none; }
.site-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-block { padding: 100px 0; }
.glass-card {
  background: linear-gradient(145deg, rgba(255,255,255,0.10), rgba(255,255,255,0.03));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-hover);
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.75;
}
.btn-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #061329;
  font-weight: 600;
  font-size: 16px;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  border: none;
  box-shadow: 0 0 20px rgba(46,144,250,0.4);
  transition: all var(--transition);
  letter-spacing: 0.02em;
}
.btn-brand:hover { filter: brightness(1.12); box-shadow: 0 0 32px rgba(46,144,250,0.6); transform: translateY(-1px); color: #061329; }
.btn-brand:active { transform: translateY(1px); box-shadow: 0 0 12px rgba(46,144,250,0.3); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  font-weight: 500;
  font-size: 16px;
  padding: 13px 32px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
}
.btn-ghost:hover { border-color: var(--accent-cyan); background: rgba(0,229,255,0.08); color: #fff; transform: translateY(-1px); }
.btn-ghost:active { transform: translateY(1px); }

/* 顶部信息条 */
.top-bar {
  height: 36px;
  background: rgba(0,0,0,0.35);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 13px;
  color: var(--text-secondary);
}
.top-bar .site-container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.top-bar .badge-verify {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(0,229,255,0.12);
  color: var(--accent-cyan);
  font-size: 12px;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(0,229,255,0.25);
}
.top-bar .top-links a { color: var(--text-secondary); margin-left: 20px; font-size: 13px; }
.top-bar .top-links a:hover { color: var(--accent-cyan); }

/* 主导航 */
.main-nav {
  background: rgba(6,11,24,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  min-height: 72px;
  position: sticky;
  top: 0;
  z-index: 1050;
}
.navbar { padding: 0; min-height: 72px; }
.navbar-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 24px; color: #fff;
  padding: 0;
}
.brand-logo {
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #061329;
  font-weight: 800;
  font-size: 20px;
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  letter-spacing: -0.01em;
  box-shadow: 0 0 16px rgba(46,144,250,0.3);
}
.navbar-brand .brand-text { font-size: 20px; font-weight: 700; color: var(--text-primary); }
.main-nav .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 24px 18px;
  position: relative;
  transition: color var(--transition);
}
.main-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 16px; left: 18px; right: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.main-nav .nav-link:hover,
.main-nav .nav-link.active { color: var(--text-primary); }
.main-nav .nav-link:hover::after,
.main-nav .nav-link.active::after { transform: scaleX(1); }
.main-nav .nav-link.active { color: var(--accent-cyan); }

/* Mega 菜单 */
.mega-trigger { position: relative; }
.mega-panel {
  display: block;
  position: absolute;
  top: 100%;
  right: 0;
  width: 720px;
  background: rgba(10,18,36,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.3s ease;
  z-index: 1090;
}
.mega-trigger:hover .mega-panel,
.mega-trigger:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-panel .row { --bs-gutter-x: 20px; }
.mega-panel h6 {
  font-size: 13px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}
.mega-panel .mega-link {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 14px;
  transition: all var(--transition);
}
.mega-panel .mega-link i { color: var(--accent-cyan); font-size: 13px; width: 16px; }
.mega-panel .mega-link:hover {
  background: rgba(0,229,255,0.06);
  color: var(--accent-cyan);
  padding-left: 20px;
}
.mega-panel .mega-card-item {
  display: flex; gap: 12px;
  padding: 10px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.mega-panel .mega-card-item:hover { background: rgba(255,255,255,0.04); }
.mega-card-thumb {
  width: 56px; height: 40px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
}
.mega-card-item .mega-card-title { font-size: 13px; font-weight: 600; color: var(--text-primary); line-height: 1.3; }
.mega-card-item .mega-card-time { font-size: 12px; color: var(--text-muted); }
.mega-cta-card {
  background: linear-gradient(135deg, rgba(46,144,250,0.2), rgba(0,229,255,0.1));
  border: 1px solid rgba(0,229,255,0.3);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}
.mega-cta-card .mega-cta-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.mega-cta-card .mega-cta-btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #061329;
  font-weight: 600;
  font-size: 14px;
  padding: 8px 24px;
  border-radius: var(--radius-btn);
  margin-top: 10px;
  transition: all var(--transition);
}
.mega-cta-card .mega-cta-btn:hover { filter: brightness(1.1); box-shadow: var(--shadow-glow); transform: translateY(-2px); }

/* Hero */
.hero-section {
  position: relative;
  min-height: 560px;
  height: 70vh;
  max-height: 720px;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6,11,24,0.92) 0%, rgba(6,11,24,0.55) 60%, rgba(6,11,24,0.3) 100%);
}
.hero-content { position: relative; z-index: 2; }
.hero-badge-live {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,71,87,0.15);
  border: 1px solid rgba(255,71,87,0.4);
  color: #ff7b8a;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 24px;
}
.hero-badge-live .live-dot {
  width: 8px; height: 8px;
  background: var(--accent-red);
  border-radius: 50%;
  animation: pulse-dot 1.5s infinite;
}
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(255,71,87,0.6); }
  70% { box-shadow: 0 0 0 8px rgba(255,71,87,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,71,87,0); }
}
.hero-title {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  text-shadow: 0 0 30px rgba(0,229,255,0.3);
}
.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-countdown-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  box-shadow: var(--shadow-card);
  margin-top: 40px;
  max-width: 460px;
  margin-left: auto;
}
.countdown-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.countdown-label i { color: var(--accent-cyan); }
.countdown-grid {
  display: flex;
  gap: 12px;
  justify-content: space-between;
}
.countdown-item {
  flex: 1;
  text-align: center;
  background: rgba(0,0,0,0.3);
  border-radius: var(--radius-md);
  padding: 16px 8px;
  border: 1px solid rgba(255,255,255,0.06);
}
.countdown-item .num {
  font-size: 40px;
  font-weight: 800;
  font-family: 'Courier New', monospace;
  color: var(--accent-cyan);
  text-shadow: 0 0 20px rgba(0,229,255,0.4);
  line-height: 1;
}
.countdown-item .unit { font-size: 12px; color: var(--text-muted); margin-top: 8px; display: block; }

/* 统计条 */
.stats-bar {
  background: var(--bg-panel);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 32px 0;
}
.stats-item { text-align: center; padding: 16px; }
.stats-item .stat-num {
  font-size: 32px; font-weight: 800;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stats-item .stat-label { font-size: 14px; color: var(--text-muted); margin-top: 4px; }

/* 看点列表 */
.highlights-section { background: var(--bg-dark); }
.highlights-scroll {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.highlight-card {
  background: var(--glass-bg-2);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all var(--transition);
  border-left: 3px solid var(--accent-cyan);
}
.highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-left-color: var(--primary);
  background: rgba(255,255,255,0.05);
}
.highlight-card .thumb {
  width: 100%; height: 180px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.highlight-card:hover .thumb { transform: scale(1.03); }
.highlight-card .body { padding: 20px 24px; }
.highlight-card .card-index {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(0,229,255,0.1);
  border-radius: var(--radius-pill);
  padding: 3px 12px;
  margin-bottom: 12px;
}
.highlight-card h3 { font-size: 20px; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.highlight-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* 订阅区 */
.subscribe-section {
  background: var(--bg-panel);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  text-align: center;
  padding: 80px 0;
}
.subscribe-form {
  max-width: 520px;
  margin: 32px auto 12px;
  display: flex;
  gap: 12px;
}
.subscribe-form .form-control {
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border-light);
  border-bottom: 2px solid rgba(255,255,255,0.2);
  color: var(--text-primary);
  padding: 14px 20px;
  border-radius: var(--radius-btn);
  transition: all var(--transition);
}
.subscribe-form .form-control:focus {
  background: rgba(255,255,255,0.12);
  border-color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0,229,255,0.2);
  color: var(--text-primary);
}
.subscribe-form .form-control::placeholder { color: var(--text-muted); }
.subscribe-form .btn-brand { padding: 14px 32px; white-space: nowrap; }
.subscribe-note { font-size: 12px; color: var(--text-muted); margin-top: 8px; }

/* CMS 最新动态 */
.latest-section { background: var(--bg-dark); }
.cms-list { margin-top: 36px; }
.cms-list-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-light);
  align-items: center;
  transition: all var(--transition);
}
.cms-list-item:last-child { border-bottom: none; }
.cms-list-item:hover {
  background: rgba(255,255,255,0.03);
  padding-left: 8px;
}
.cms-list-thumb {
  width: 120px; height: 80px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.cms-list-item:hover .cms-list-thumb { transform: scale(1.03); }
.cms-list-info { flex: 1; min-width: 0; }
.cms-list-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.cms-badge {
  display: inline-block;
  font-size: 12px;
  color: var(--accent-cyan);
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.3);
  border-radius: var(--radius-pill);
  padding: 2px 12px;
}
.cms-list-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  display: inline-block;
  transition: color var(--transition);
}
.cms-list-item:hover .cms-list-title { color: var(--accent-cyan); }
.cms-list-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.cms-list-time {
  font-size: 13px;
  color: var(--text-muted);
  display: flex; align-items: center; gap: 6px;
}
.cms-list-time i { font-size: 12px; }
.empty-state {
  min-height: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: var(--glass-bg-2);
  border-radius: var(--radius-card);
  color: var(--text-muted);
  font-size: 15px;
}
.empty-state i { font-size: 40px; opacity: 0.4; }
.cms-view-all { margin-top: 32px; text-align: center; }

/* 回放区 */
.replay-section {
  background: var(--bg-panel);
  border-top: 1px solid var(--border-light);
}
.replay-left { padding-right: 32px; }
.replay-item {
  display: flex; gap: 14px; align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition);
}
.replay-item:last-child { border-bottom: none; }
.replay-item:hover .replay-title { color: var(--accent-cyan); }
.replay-thumb {
  width: 90px; height: 60px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  position: relative;
}
.replay-thumb .replay-duration {
  position: absolute;
  right: 6px; bottom: 6px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
}
.replay-title { font-size: 15px; font-weight: 500; color: var(--text-primary); transition: color var(--transition); }
.replay-date { font-size: 13px; color: var(--text-muted); }
.replay-entry-card {
  background: linear-gradient(145deg, rgba(46,144,250,0.18), rgba(0,229,255,0.06));
  border: 1px solid rgba(0,229,255,0.3);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.replay-entry-card h3 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.replay-entry-card p { color: var(--text-secondary); font-size: 15px; margin-bottom: 24px; }

/* FAQ */
.faq-section { background: var(--bg-dark); }
.faq-container { max-width: 860px; margin: 0 auto; margin-top: 40px; }
.faq-item {
  background: linear-gradient(145deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover { border-color: var(--border-hover); }
.faq-item.active { border-color: rgba(0,229,255,0.4); }
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  user-select: none;
}
.faq-question .faq-icon {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(0,229,255,0.1);
  color: var(--accent-cyan);
  font-size: 14px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}
.faq-item.active .faq-answer { max-height: 300px; padding-bottom: 20px; }

/* CTA 区 */
.cta-section {
  position: relative;
  background: linear-gradient(120deg, #0A1B3D 0%, #123A6E 100%);
  padding: 80px 0;
  text-align: center;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(0,229,255,0.08) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.cta-section::after {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 260px; height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,229,255,0.25), transparent 60%);
  pointer-events: none;
}
.cta-section .site-container { position: relative; z-index: 2; }
.cta-title { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.cta-subtitle { font-size: 16px; color: rgba(255,255,255,0.8); margin-bottom: 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* 页脚 */
.footer-section {
  background: #04070F;
  border-top: 1px solid var(--border-light);
  padding: 64px 0 0;
}
.footer-brand { max-width: 320px; }
.footer-brand .footer-logo {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 16px;
}
.footer-brand .footer-logo .brand-logo { font-size: 18px; padding: 4px 10px; }
.footer-brand .footer-desc { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(0,229,255,0.3);
  display: inline-block;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-secondary); font-size: 14px; transition: all var(--transition); }
.footer-links a:hover { color: var(--accent-cyan); padding-left: 4px; }
.footer-contact li { margin-bottom: 12px; color: var(--text-secondary); font-size: 14px; display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--accent-cyan); width: 18px; text-align: center; }
.footer-bottom {
  margin-top: 48px;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-secondary); }
.footer-bottom a:hover { color: var(--accent-cyan); }

/* 响应式 */
@media (max-width: 1199.98px) {
  .highlights-scroll { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 44px; }
}
@media (max-width: 991.98px) {
  .section-block { padding: 72px 0; }
  .main-nav .navbar-nav { padding: 12px 0; }
  .main-nav .nav-link { padding: 12px 18px; }
  .main-nav .nav-link::after { bottom: 8px; }
  .mega-panel {
    position: static;
    width: 100%;
    opacity: 1;
    visibility: visible;
    transform: none;
    margin-top: 8px;
    box-shadow: none;
    border: 1px solid var(--border-light);
  }
  .mega-trigger:hover .mega-panel { transform: none; }
  .hero-section { height: auto; min-height: 520px; padding: 80px 0; }
  .hero-countdown-card { margin-left: 0; max-width: 100%; }
  .stats-item .stat-num { font-size: 26px; }
  .replay-left { padding-right: 0; margin-bottom: 40px; }
}
@media (max-width: 767.98px) {
  .section-block { padding: 56px 0; }
  .hero-title { font-size: 36px; }
  .hero-subtitle { font-size: 16px; }
  .section-title { font-size: 26px; }
  .highlights-scroll { grid-template-columns: 1fr; }
  .subscribe-form { flex-direction: column; }
  .subscribe-form .btn-brand { width: 100%; }
  .cms-list-item { flex-direction: column; align-items: flex-start; gap: 12px; }
  .cms-list-thumb { width: 100%; height: 140px; }
  .cta-title { font-size: 26px; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn-brand, .cta-actions .btn-ghost { width: 100%; }
  .replay-entry-card { padding: 32px 24px; }
  .footer-brand { margin-bottom: 32px; }
  .footer-col { margin-bottom: 28px; }
}
@media (max-width: 575.98px) {
  .site-container { padding: 0 16px; }
  .hero-title { font-size: 30px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn-brand, .hero-actions .btn-ghost { width: 100%; }
  .countdown-item .num { font-size: 28px; }
  .countdown-grid { gap: 8px; }
  .countdown-item { padding: 12px 4px; }
  .stats-item { padding: 8px; }
  .stats-item .stat-num { font-size: 22px; }
  .highlight-card .body { padding: 16px; }
}

/* roulang page: category1 */
:root {
            --primary: #2E90FA;
            --primary-dark: #1B6FD8;
            --accent: #00E5FF;
            --warning: #FFB900;
            --danger: #FF4757;
            --bg-deep: #060B18;
            --bg-panel: #0D1526;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --text-primary: #F1F5F9;
            --text-secondary: #98A2B3;
            --text-tertiary: #64748B;
            --border-color: rgba(255, 255, 255, 0.1);
            --border-hover: rgba(0, 229, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 40px rgba(46, 144, 250, 0.18);
            --shadow-glow: 0 0 20px rgba(46, 144, 250, 0.4);
            --font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition: 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            outline: none;
        }
        .site-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-block {
            padding: 80px 0;
        }
        .glass-card {
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.03));
            backdrop-filter: blur(12px) saturate(1.4);
            -webkit-backdrop-filter: blur(12px) saturate(1.4);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }
        /* 顶部信息条 */
        .top-bar {
            background: rgba(6, 11, 24, 0.6);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            height: 36px;
            font-size: 13px;
            display: flex;
            align-items: center;
            color: var(--text-secondary);
        }
        .top-bar .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .badge-verify {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 229, 255, 0.12);
            color: var(--accent);
            border: 1px solid rgba(0, 229, 255, 0.25);
            border-radius: var(--radius-pill);
            padding: 2px 12px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.2px;
        }
        .top-bar-link {
            color: var(--text-secondary);
            font-size: 13px;
            transition: color var(--transition);
        }
        .top-bar-link:hover {
            color: var(--accent);
        }
        /* 主导航 */
        .main-nav {
            background: rgba(6, 11, 24, 0.85);
            backdrop-filter: blur(14px) saturate(1.3);
            -webkit-backdrop-filter: blur(14px) saturate(1.3);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: sticky;
            top: 0;
            z-index: 1050;
            height: 72px;
            display: flex;
            align-items: center;
        }
        .navbar {
            padding: 0;
            width: 100%;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0;
            margin-right: 0;
        }
        .brand-logo {
            display: inline-block;
            background: linear-gradient(135deg, #2E90FA, #00E5FF);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-weight: 800;
            font-size: 24px;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .brand-text {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.04);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.2);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23F1F5F9' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .navbar-nav .nav-item {
            margin-left: 8px;
            position: relative;
        }
        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition), background var(--transition);
        }
        .navbar-nav .nav-link::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
            opacity: 0;
            transform: scaleX(0.4);
            transition: opacity var(--transition), transform var(--transition);
        }
        .navbar-nav .nav-link:hover {
            color: #fff;
        }
        .navbar-nav .nav-link:hover::after {
            opacity: 1;
            transform: scaleX(1);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            opacity: 1;
            transform: scaleX(1);
        }
        /* Mega Menu */
        .mega-trigger {
            position: relative;
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 14px);
            right: 0;
            width: 720px;
            background: rgba(13, 21, 38, 0.97);
            backdrop-filter: blur(20px) saturate(1.4);
            -webkit-backdrop-filter: blur(20px) saturate(1.4);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
            padding: 28px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            transition: all 0.3s ease;
            z-index: 1080;
        }
        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(8px);
        }
        .mega-panel h6 {
            color: var(--text-secondary);
            font-size: 13px;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            font-weight: 600;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .mega-link {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 14px;
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition), padding-left var(--transition);
            border-left: 3px solid transparent;
            margin-bottom: 4px;
        }
        .mega-link i {
            width: 18px;
            text-align: center;
            color: var(--primary);
        }
        .mega-link:hover {
            color: var(--accent);
            background: rgba(255, 255, 255, 0.04);
            padding-left: 16px;
            border-left-color: var(--accent);
        }
        .mega-card-item {
            display: flex;
            gap: 12px;
            padding: 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
            margin-bottom: 6px;
        }
        .mega-card-item:hover {
            background: rgba(255, 255, 255, 0.04);
        }
        .mega-card-thumb {
            width: 64px;
            height: 48px;
            object-fit: cover;
            border-radius: 6px;
        }
        .mega-card-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .mega-card-time {
            font-size: 12px;
            color: var(--text-tertiary);
            margin-top: 2px;
        }
        .mega-cta-card {
            background: linear-gradient(145deg, rgba(46, 144, 250, 0.15), rgba(0, 229, 255, 0.05));
            border: 1px solid rgba(0, 229, 255, 0.15);
            border-radius: 12px;
            padding: 18px;
            text-align: center;
        }
        .mega-cta-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .mega-cta-desc {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        /* 按钮 */
        .btn-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, #2E90FA, #00E5FF);
            color: #061329 !important;
            font-weight: 600;
            font-size: 16px;
            padding: 12px 28px;
            border: none;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-glow);
            transition: all var(--transition);
            cursor: pointer;
        }
        .btn-main:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 30px rgba(46, 144, 250, 0.55);
            transform: translateY(-2px);
            color: #061329 !important;
        }
        .btn-main:active {
            transform: translateY(1px);
            box-shadow: 0 0 14px rgba(46, 144, 250, 0.3);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 16px;
            padding: 12px 28px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            cursor: pointer;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn-ghost:hover {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.10);
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
        }
        .btn-ghost:active {
            transform: translateY(1px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        /* Hero */
        .category-hero {
            min-height: 320px;
            display: flex;
            align-items: center;
            background:
                linear-gradient(90deg, rgba(6, 11, 24, 0.95) 0%, rgba(6, 11, 24, 0.72) 55%, rgba(6, 11, 24, 0.35) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            padding: 60px 0;
        }
        .category-hero .hero-title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            text-shadow: 0 0 30px rgba(0, 229, 255, 0.25);
            margin-bottom: 16px;
        }
        .category-hero .hero-title .text-gradient {
            background: linear-gradient(135deg, #2E90FA, #00E5FF);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .category-hero .hero-desc {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 24px;
        }
        .hero-img {
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            object-fit: cover;
            width: 100%;
            height: 240px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        /* 目录结构 */
        .toc-sidebar {
            position: sticky;
            top: 100px;
            background: rgba(13, 21, 38, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-card);
            padding: 24px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        .toc-sidebar .toc-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-secondary);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .toc-sidebar .toc-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .toc-sidebar .toc-list li {
            margin-bottom: 4px;
        }
        .toc-sidebar .toc-list a {
            display: block;
            padding: 8px 12px;
            color: var(--text-secondary);
            font-size: 14px;
            border-radius: var(--radius-sm);
            border-left: 3px solid transparent;
            transition: all var(--transition);
        }
        .toc-sidebar .toc-list a:hover {
            color: var(--accent);
            background: rgba(255, 255, 255, 0.04);
            border-left-color: var(--accent);
            padding-left: 16px;
        }
        /* 内容段落 */
        .content-section-wrapper {
            padding: 100px 0 80px;
        }
        .content-block {
            margin-bottom: 48px;
        }
        .content-block:last-child {
            margin-bottom: 0;
        }
        .content-block .block-index {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, rgba(46, 144, 250, 0.25), rgba(0, 229, 255, 0.12));
            border: 1px solid rgba(0, 229, 255, 0.2);
            border-radius: 50%;
            font-size: 15px;
            font-weight: 700;
            color: var(--accent);
            margin-right: 12px;
        }
        .content-block h2 {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .content-block p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .content-block .highlight-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }
        .content-block .highlight-list li {
            position: relative;
            padding-left: 28px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            font-size: 15px;
        }
        .content-block .highlight-list li::before {
            content: '\f058';
            font-family: 'Font Awesome 6 Free';
            font-weight: 400;
            position: absolute;
            left: 0;
            top: 1px;
            color: var(--accent);
            font-size: 16px;
        }
        /* 特色条目卡片行 */
        .feature-card {
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.03));
            backdrop-filter: blur(12px) saturate(1.4);
            -webkit-backdrop-filter: blur(12px) saturate(1.4);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--primary), var(--accent));
            opacity: 0.7;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }
        .feature-card .feature-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(46, 144, 250, 0.2), rgba(0, 229, 255, 0.1));
            border: 1px solid rgba(0, 229, 255, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent);
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 18px;
        }
        .feature-card .feature-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition), color var(--transition);
        }
        .feature-card .feature-link:hover {
            gap: 12px;
            color: var(--accent);
        }
        /* FAQ */
        .faq-section {
            background: linear-gradient(180deg, transparent, rgba(13, 21, 38, 0.5));
        }
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.07) !important;
            border-radius: var(--radius-card) !important;
            margin-bottom: 14px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .faq-item .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-size: 17px;
            font-weight: 600;
            padding: 20px 24px;
            border: none;
            border-radius: var(--radius-card) !important;
            box-shadow: none;
            transition: color var(--transition);
        }
        .faq-item .accordion-button:not(.collapsed) {
            background: rgba(46, 144, 250, 0.06);
            color: var(--accent);
        }
        .faq-item .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12);
        }
        .faq-item .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300E5FF'%3e%3cpath fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z' clip-rule='evenodd'/%3e%3c/svg%3e");
            transition: transform 0.3s ease;
        }
        .faq-item .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300E5FF'%3e%3cpath fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z' clip-rule='evenodd'/%3e%3c/svg%3e");
        }
        .faq-item .accordion-body {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            padding: 0 24px 22px;
            background: transparent;
        }
        /* CTA */
        .cta-section {
            position: relative;
            padding: 90px 0;
            background:
                linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
                linear-gradient(120deg, #0A1B3D 0%, #123A6E 100%);
            background-size: 24px 24px, 24px 24px, 100% 100%;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            text-align: center;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: 10%;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 5%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(46, 144, 250, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .cta-section .cta-subtitle {
            font-size: 16px;
            color: #B8C4D0;
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }
        .cta-form .form-control {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-btn);
            color: var(--text-primary);
            padding: 13px 20px;
            font-size: 14px;
            flex: 1;
            transition: all var(--transition);
        }
        .cta-form .form-control::placeholder {
            color: var(--text-tertiary);
        }
        .cta-form .form-control:focus {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(0, 229, 255, 0.12);
        }
        .cta-form .form-control:hover {
            border-color: rgba(0, 229, 255, 0.3);
        }
        .cta-form .btn-main {
            flex-shrink: 0;
        }
        .cta-note {
            font-size: 12px;
            color: var(--text-tertiary);
            margin-top: 14px;
        }
        /* 页脚 */
        .footer-section {
            background: #071024;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 60px;
        }
        .footer-col {
            margin-bottom: 32px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 2px solid rgba(0, 229, 255, 0.12);
            display: inline-block;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            position: relative;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-links a::before {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 1px;
            background: var(--accent);
            transition: width var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-links a:hover::before {
            width: 100%;
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            color: var(--text-secondary);
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact i {
            color: var(--primary);
            width: 14px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            background: #050D1A;
            margin-top: 20px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-tertiary);
            text-align: center;
            margin: 0;
        }
        .footer-bottom a {
            color: var(--text-tertiary);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        /* 响应式 */
        @media (max-width: 1199.98px) {
            .category-hero .hero-title {
                font-size: 36px;
            }
            .mega-panel {
                width: 640px;
            }
        }
        @media (max-width: 991.98px) {
            .main-nav {
                height: auto;
                min-height: 72px;
            }
            .navbar-collapse {
                background: rgba(6, 11, 24, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 16px;
                margin-top: 8px;
                border: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
            }
            .navbar-nav .nav-item {
                margin-left: 0;
                margin-bottom: 4px;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                border-radius: var(--radius-sm);
            }
            .navbar-nav .nav-link::after {
                display: none;
            }
            .navbar-nav .nav-link.active {
                background: rgba(0, 229, 255, 0.08);
            }
            .mega-trigger .mega-panel {
                position: static;
                width: 100%;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                background: rgba(255, 255, 255, 0.03);
                border-radius: var(--radius-md);
                margin-top: 8px;
                border: 1px solid rgba(255, 255, 255, 0.06);
                padding: 20px;
            }
            .section-block {
                padding: 64px 0;
            }
            .toc-sidebar {
                position: static;
                margin-bottom: 32px;
            }
            .category-hero {
                padding: 48px 0;
            }
            .category-hero .hero-title {
                font-size: 32px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form .btn-main {
                width: 100%;
            }
        }
        @media (max-width: 767.98px) {
            .site-container {
                padding: 0 16px;
            }
            .section-block {
                padding: 48px 0;
            }
            .category-hero {
                min-height: auto;
                padding: 40px 0;
            }
            .category-hero .hero-title {
                font-size: 28px;
            }
            .category-hero .hero-desc {
                font-size: 15px;
            }
            .content-block h2 {
                font-size: 24px;
            }
            .feature-card {
                padding: 24px 20px;
            }
            .cta-section {
                padding: 60px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .btn-main,
            .btn-ghost {
                width: 100%;
                padding: 13px 20px;
            }
            .footer-bottom p {
                font-size: 12px;
                padding: 0 12px;
            }
        }

/* roulang page: article */
:root {
  --primary: #2E90FA;
  --primary-dark: #1B6FD8;
  --accent: #00E5FF;
  --amber: #FFB900;
  --red: #FF4757;
  --bg-deep: #060B18;
  --bg-secondary: #0D1526;
  --glass: rgba(255,255,255,0.06);
  --glass-strong: rgba(255,255,255,0.10);
  --text-primary: #F1F5F9;
  --text-secondary: #98A2B3;
  --text-tertiary: #64748B;
  --text-dark: #061329;
  --border: rgba(255,255,255,0.1);
  --border-hover: rgba(0,229,255,0.4);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 40px rgba(46,144,250,0.18);
  --font: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --transition: 0.25s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background:
    radial-gradient(ellipse at 20% 0%, rgba(46,144,250,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(0,229,255,0.05) 0%, transparent 40%),
    var(--bg-deep);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; }
ul, ol { margin-bottom: 0; }

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

/* ===== Topbar ===== */
.topbar {
  height: 36px;
  background: rgba(6,11,24,0.85);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: 13px;
  color: var(--text-secondary);
}
.topbar .site-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}
.badge-verify {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-weight: 500;
  background: rgba(0,229,255,0.08);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(0,229,255,0.25);
  font-size: 12px;
  line-height: 1.4;
}
.topbar-links {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 13px;
}

/* ===== Main Nav ===== */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(6,11,24,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.main-nav .navbar {
  min-height: 72px;
  padding: 0;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 20px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #2E90FA, #00E5FF);
  color: var(--text-dark);
  line-height: 1.2;
}
.brand-text {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 18px;
}
.navbar-nav .nav-item { margin: 0 6px; }
.navbar-nav .nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 16px;
  padding: 10px 16px !important;
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.navbar-nav .nav-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.03);
}
.navbar-nav .nav-link.active { color: var(--accent); }
.navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
}
.mega-trigger { position: relative; }
.mega-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 720px;
  max-width: 90vw;
  background: rgba(13,21,38,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
  z-index: 1200;
}
.mega-trigger:hover .mega-panel,
.mega-trigger:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-panel h6 {
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}
.mega-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: all var(--transition);
  margin-bottom: 4px;
}
.mega-link i { width: 20px; text-align: center; color: var(--accent); }
.mega-link:hover {
  color: var(--accent);
  background: rgba(0,229,255,0.06);
  padding-left: 20px;
}
.mega-card-item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  margin-bottom: 6px;
}
.mega-card-item:hover { background: rgba(255,255,255,0.04); }
.mega-card-thumb {
  width: 56px;
  height: 40px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}
.mega-card-title { color: var(--text-primary); font-size: 14px; font-weight: 500; line-height: 1.3; }
.mega-card-time { color: var(--text-tertiary); font-size: 12px; }
.mega-cta {
  display: block;
  padding: 14px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(46,144,250,0.15), rgba(0,229,255,0.05));
  border: 1px solid rgba(46,144,250,0.3);
  margin-bottom: 8px;
  transition: all var(--transition);
}
.mega-cta:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(46,144,250,0.2);
}
.mega-cta-title { display: block; color: var(--text-primary); font-weight: 600; }
.mega-cta-desc { display: block; color: var(--text-secondary); font-size: 13px; }
.navbar-toggler {
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(241,245,249,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  background: rgba(13,21,38,0.6);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.breadcrumb {
  margin: 0;
  --bs-breadcrumb-divider-color: var(--text-tertiary);
  --bs-breadcrumb-item-active-color: var(--text-secondary);
}
.breadcrumb-item { font-size: 14px; }
.breadcrumb-item a { color: var(--text-secondary); }
.breadcrumb-item a:hover { color: var(--accent); }
.breadcrumb-item.active {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 320px;
  display: inline-block;
  vertical-align: middle;
}

/* ===== Article Detail ===== */
.article-section { padding: 60px 0 40px; }
.narrow-container { max-width: 800px; }
.article-detail {
  background: linear-gradient(145deg, rgba(255,255,255,0.10), rgba(255,255,255,0.03));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 48px;
}
.article-title {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: var(--text-primary);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding-bottom: 24px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-secondary);
}
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.badge-category {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.25);
  border-radius: var(--radius-pill);
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
}
.article-cover {
  margin-bottom: 32px;
  border-radius: var(--radius-md);
  overflow: hidden;
}
.article-cover img { width: 100%; display: block; }

.article-content {
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.75;
}
.article-content p {
  margin-bottom: 1.5em;
  color: #CBD5E1;
}
.article-content h2 {
  font-size: 28px;
  font-weight: 700;
  margin: 2em 0 1em;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.article-content h3 {
  font-size: 22px;
  font-weight: 600;
  margin: 1.8em 0 0.8em;
  color: var(--text-primary);
}
.article-content h4 {
  font-size: 18px;
  font-weight: 600;
  margin: 1.5em 0 0.6em;
  color: var(--text-primary);
}
.article-content img {
  border-radius: var(--radius-md);
  margin: 24px 0;
}
.article-content blockquote {
  border-left: 3px solid var(--accent);
  background: rgba(0,229,255,0.05);
  padding: 16px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
  font-style: italic;
  margin: 24px 0;
}
.article-content ul,
.article-content ol {
  padding-left: 1.5em;
  margin-bottom: 1.5em;
  color: #CBD5E1;
}
.article-content ul li,
.article-content ol li { margin-bottom: 0.5em; }
.article-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.article-content a:hover { color: var(--primary); }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
}
.article-content table th { background: rgba(255,255,255,0.04); font-weight: 600; }
.article-content hr { border-color: var(--border); margin: 32px 0; opacity: 1; }

.article-footer-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
  transition: all var(--transition);
  background: transparent;
}
.tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,229,255,0.04);
}
.article-share { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-secondary); }
.share-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
  background: transparent;
  font-size: 14px;
}
.share-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 12px rgba(0,229,255,0.2);
  transform: translateY(-2px);
}

.article-not-found {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}
.article-not-found i {
  font-size: 48px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
  display: block;
}
.article-not-found p { font-size: 18px; margin-bottom: 20px; }

/* ===== Related ===== */
.related-section { padding: 40px 0 80px; }
.section-head { margin-bottom: 32px; }
.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 0;
  position: relative;
  padding-left: 16px;
}
.section-head h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 2px;
}
.related-card {
  background: linear-gradient(145deg, rgba(255,255,255,0.10), rgba(255,255,255,0.03));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  height: 100%;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-hover);
}
.related-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}
.related-card-body {
  padding: 20px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.related-card-body h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
}
.related-card-body h3 a { color: var(--text-primary); }
.related-card-body h3 a:hover { color: var(--accent); }
.related-card-body p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-date {
  display: inline-block;
  color: var(--text-tertiary);
  font-size: 13px;
  margin-bottom: 12px;
}
.related-card-footer {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.text-link { color: var(--accent); font-weight: 500; font-size: 14px; }
.text-link:hover { color: var(--primary); }

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(120deg, #0A1B3D 0%, #123A6E 100%);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 30px solid rgba(0,229,255,0.08);
  pointer-events: none;
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: 20%;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 20px solid rgba(255,185,0,0.06);
  pointer-events: none;
}
.cta-inner h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}
.cta-inner p {
  color: rgba(241,245,249,0.7);
  font-size: 16px;
  margin-bottom: 28px;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  transition: all var(--transition);
  line-height: 1.4;
}
.btn-primary {
  background: linear-gradient(135deg, #2E90FA, #00E5FF);
  color: var(--text-dark);
  box-shadow: 0 0 20px rgba(46,144,250,0.4);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #3FA0FF, #1EE9FF);
  color: var(--text-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(46,144,250,0.5);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 0 12px rgba(46,144,250,0.3); }
.btn-outline-light {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.4);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-lg { padding: 14px 36px; font-size: 17px; }

/* ===== Footer ===== */
.footer-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding-top: 64px;
}
.footer-col { margin-bottom: 32px; }
.footer-logo { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.footer-desc {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  max-width: 320px;
  margin-bottom: 0;
}
.footer-title {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  position: relative;
}
.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li { margin-bottom: 8px; }
.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: all var(--transition);
}
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-contact li {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-contact i { color: var(--accent); width: 16px; text-align: center; }
.footer-contact a { color: var(--text-secondary); }
.footer-contact a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
  background: rgba(6,11,24,0.5);
}
.footer-bottom p {
  color: var(--text-tertiary);
  font-size: 13px;
  margin-bottom: 0;
}
.footer-bottom a { color: var(--text-tertiary); transition: color var(--transition); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 1199.98px) {
  .mega-panel { width: 640px; }
}
@media (max-width: 991.98px) {
  .section-block { padding: 72px 0; }
  .mega-panel {
    position: static;
    width: 100%;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    padding: 16px 8px;
    background: transparent;
    max-width: none;
  }
  .navbar-nav .nav-link.active::after { display: none; }
  .navbar-nav .nav-link { padding: 10px 8px !important; }
  .navbar-collapse {
    background: rgba(13,21,38,0.98);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-top: 12px;
    border: 1px solid var(--border);
  }
  .navbar-collapse.show, .navbar-collapse.collapsing {
    max-height: calc(100vh - 100px);
    overflow-y: auto;
  }
  .mega-panel .row { flex-direction: column; }
  .mega-panel .col-4 { width: 100%; flex: 0 0 100%; max-width: 100%; margin-bottom: 12px; }
  .breadcrumb-item.active { max-width: 180px; }
  .article-section { padding: 40px 0 32px; }
}
@media (max-width: 767.98px) {
  .section-block { padding: 56px 0; }
  .article-detail { padding: 28px 20px; border-radius: var(--radius-md); }
  .article-title { font-size: 32px; }
  .article-content { font-size: 16px; line-height: 1.65; }
  .article-content h2 { font-size: 24px; }
  .article-content h3 { font-size: 20px; }
  .article-footer-bar { flex-direction: column; align-items: flex-start; }
  .cta-buttons .btn { width: 100%; }
  .related-card img { height: 140px; }
  .site-container { padding: 0 16px; }
  .related-section { padding: 32px 0 56px; }
  .cta-section { padding: 56px 0; }
  .cta-inner h2 { font-size: 26px; }
  .section-head h2 { font-size: 26px; }
  .topbar-links span { display: none; }
}
@media (max-width: 520px) {
  .navbar-nav .nav-link { font-size: 15px; }
  .article-meta { gap: 10px; font-size: 13px; }
  .article-share { flex-wrap: wrap; }
  .brand-text { font-size: 16px; }
  .brand-logo { font-size: 17px; padding: 5px 10px; }
  .article-cover { margin-bottom: 24px; }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2E90FA;
            --primary-dark: #1B6FD8;
            --accent: #00E5FF;
            --amber: #FFB900;
            --red: #FF4757;
            --bg-dark: #060B18;
            --bg-panel: #0D1526;
            --glass: rgba(255, 255, 255, 0.06);
            --glass-dark: rgba(255, 255, 255, 0.03);
            --text-primary: #F1F5F9;
            --text-secondary: #98A2B3;
            --text-tertiary: #64748B;
            --text-reverse: #0F172A;
            --border: rgba(255, 255, 255, 0.1);
            --border-hover: rgba(0, 229, 255, 0.4);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 40px rgba(46, 144, 250, 0.18);
            --shadow-glow: 0 0 20px rgba(46, 144, 250, 0.4);
            --font-main: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition-base: 0.25s ease;
            --transition-fast: 0.15s ease;
            --section-gap: 100px;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-dark);
            background-image: radial-gradient(ellipse at top, rgba(46, 144, 250, 0.06) 0%, transparent 55%);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: var(--font-main);
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin: 0 0 0.5em;
        }
        p {
            margin-bottom: 1em;
        }
        ul,
        ol {
            padding-left: 1.2em;
        }

        /* ===== 布局容器 ===== */
        .site-container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-block {
            padding: var(--section-gap) 0;
        }

        /* ===== 顶部信息条 ===== */
        .topbar {
            height: 36px;
            background: rgba(6, 11, 24, 0.92);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .topbar .site-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .badge-verify {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 229, 255, 0.12);
            border: 1px solid rgba(0, 229, 255, 0.3);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.02em;
        }

        /* ===== 主导航 ===== */
        .main-nav {
            position: sticky;
            top: 0;
            z-index: 1040;
            background: rgba(6, 11, 24, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .main-nav .navbar {
            min-height: 72px;
            padding: 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 4px 14px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #061329;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: -0.02em;
            box-shadow: 0 0 20px rgba(46, 144, 250, 0.25);
        }
        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.01em;
        }
        .main-nav .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            font-size: 15px;
            padding: 10px 20px !important;
            position: relative;
            transition: color var(--transition-fast);
            border-radius: var(--radius-sm);
        }
        .main-nav .nav-link::after {
            content: '';
            position: absolute;
            left: 20px;
            right: 20px;
            bottom: 6px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }
        .main-nav .nav-link:hover {
            color: var(--text-primary) !important;
        }
        .main-nav .nav-link:hover::after {
            transform: scaleX(1);
        }
        .main-nav .nav-link.active {
            color: var(--accent) !important;
            font-weight: 600;
        }
        .main-nav .nav-link.active::after {
            transform: scaleX(1);
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            background: transparent;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='rgba(241,245,249,0.8)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Mega Menu ===== */
        .mega-trigger {
            position: relative;
        }
        .mega-panel {
            position: absolute;
            right: 0;
            top: calc(100% + 12px);
            width: 720px;
            max-width: 90vw;
            background: rgba(13, 21, 38, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all 0.25s ease;
            z-index: 1000;
        }
        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-panel h6 {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--text-tertiary);
            margin-bottom: 14px;
            font-weight: 600;
        }
        .mega-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            color: var(--text-secondary);
            font-size: 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
        }
        .mega-link i {
            width: 16px;
            color: var(--accent);
            font-size: 13px;
        }
        .mega-link:hover {
            color: var(--accent);
            background: var(--glass);
            padding-left: 20px;
        }
        .mega-link:hover::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 16px;
            background: var(--accent);
            border-radius: 2px;
        }
        .mega-card-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mega-card-item:hover {
            background: var(--glass);
        }
        .mega-card-thumb {
            width: 64px;
            height: 44px;
            object-fit: cover;
            border-radius: 6px;
            flex-shrink: 0;
        }
        .mega-card-title {
            font-size: 14px;
            color: var(--text-primary);
            font-weight: 600;
            line-height: 1.4;
        }
        .mega-card-time {
            font-size: 12px;
            color: var(--text-tertiary);
            margin-top: 2px;
        }
        .mega-cta {
            background: linear-gradient(145deg, rgba(46, 144, 250, 0.15), rgba(0, 229, 255, 0.05));
            border: 1px solid rgba(0, 229, 255, 0.2);
            border-radius: var(--radius-md);
            padding: 22px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            height: 100%;
            min-height: 160px;
        }
        .mega-cta h6 {
            color: var(--accent);
            text-transform: none;
            font-size: 16px;
            letter-spacing: 0;
        }
        .mega-cta p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        /* ===== 按钮 ===== */
        .btn-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: var(--text-reverse);
            font-weight: 600;
            font-size: 16px;
            padding: 12px 28px;
            border: none;
            border-radius: var(--radius-btn);
            box-shadow: 0 0 20px rgba(46, 144, 250, 0.3);
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .btn-main:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 30px rgba(46, 144, 250, 0.5);
            color: var(--text-reverse);
            transform: translateY(-1px);
        }
        .btn-main:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--glass);
            border: 1px solid var(--border);
            color: var(--text-primary);
            font-weight: 500;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .btn-ghost:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        /* ===== 分类页 Hero ===== */
        .page-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background: linear-gradient(90deg, rgba(6, 11, 24, 0.95) 0%, rgba(6, 11, 24, 0.75) 60%, rgba(6, 11, 24, 0.5) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
            padding: 60px 0;
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 71, 87, 0.15);
            border: 1px solid rgba(255, 71, 87, 0.35);
            color: var(--red);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 18px;
            letter-spacing: 0.04em;
        }
        .page-hero h1 {
            font-size: 44px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 16px;
            text-shadow: 0 0 30px rgba(0, 229, 255, 0.2);
        }
        .page-hero .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.75;
            margin-bottom: 24px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
        }
        .hero-visual img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }
        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(6, 11, 24, 0.6) 0%, transparent 50%);
        }
        .hero-visual-badge {
            position: absolute;
            left: 16px;
            bottom: 16px;
            z-index: 1;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(6, 11, 24, 0.8);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 13px;
            color: var(--text-primary);
        }
        .hero-visual-badge i {
            color: var(--accent);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            padding: 60px 0;
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
        }
        .stat-item {
            text-align: center;
            padding: 20px 10px;
            border-radius: var(--radius-card);
            background: var(--glass);
            border: 1px solid var(--border);
            transition: all var(--transition-base);
        }
        .stat-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--text-primary);
            font-family: 'Inter', monospace;
            letter-spacing: -0.03em;
            line-height: 1.1;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ===== 卖点区块 ===== */
        .section-head {
            margin-bottom: 48px;
        }
        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-secondary);
            max-width: 680px;
            font-size: 15px;
            margin-bottom: 0;
        }
        .feature-card {
            position: relative;
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.03));
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            height: 100%;
            transition: all var(--transition-base);
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--primary), var(--accent));
            opacity: 0.7;
        }
        .feature-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 229, 255, 0.12);
            border: 1px solid rgba(0, 229, 255, 0.25);
            border-radius: var(--radius-md);
            color: var(--accent);
            font-size: 20px;
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 适用场景 ===== */
        .scenario-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .scenario-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scenario-item {
            background: var(--glass-dark);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all var(--transition-base);
        }
        .scenario-item:hover {
            background: var(--glass);
            border-color: var(--border-hover);
        }
        .scenario-item .scenario-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.08em;
            margin-bottom: 10px;
        }
        .scenario-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .scenario-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ===== 观看流程 ===== */
        .process-section {
            padding: 80px 0;
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .process-grid::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 15%;
            right: 15%;
            height: 1px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0.3;
        }
        .process-item {
            text-align: center;
            position: relative;
        }
        .process-step {
            width: 64px;
            height: 64px;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: var(--text-reverse);
            font-size: 22px;
            font-weight: 800;
            border-radius: var(--radius-lg);
            box-shadow: 0 0 24px rgba(46, 144, 250, 0.3);
            position: relative;
            z-index: 1;
        }
        .process-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .process-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 260px;
            margin: 0 auto;
        }

        /* ===== 特色卡片区域 ===== */
        .highlights-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .highlight-card {
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .highlight-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .highlight-thumb {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }
        .highlight-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .highlight-tag {
            align-self: flex-start;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.2);
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
        }
        .highlight-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .highlight-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 14px;
        }
        .highlight-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-tertiary);
        }
        .highlight-meta i {
            font-size: 12px;
        }

        /* ===== 内容目录区 ===== */
        .guide-section {
            padding: 80px 0;
        }
        .guide-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 48px;
        }
        .guide-side {
            position: sticky;
            top: 90px;
            align-self: start;
            background: var(--glass);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
        }
        .guide-side h5 {
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-tertiary);
            margin-bottom: 16px;
        }
        .guide-side ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .guide-side li {
            margin-bottom: 4px;
        }
        .guide-side a {
            display: block;
            padding: 8px 12px;
            color: var(--text-secondary);
            font-size: 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .guide-side a:hover,
        .guide-side a.active-guide {
            color: var(--accent);
            background: var(--glass);
            padding-left: 18px;
        }
        .guide-content {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }
        .guide-block {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            background: var(--glass-dark);
            scroll-margin-top: 90px;
        }
        .guide-block h2 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .guide-block h2 i {
            color: var(--accent);
            font-size: 20px;
        }
        .guide-block p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .guide-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 14px;
        }
        .guide-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(46, 144, 250, 0.1);
            border: 1px solid rgba(46, 144, 250, 0.2);
            color: var(--primary);
            font-size: 13px;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
        }
        .faq-container {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-toggle {
            width: 100%;
            background: transparent;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: left;
        }
        .faq-toggle:hover {
            color: var(--accent);
        }
        .faq-toggle i {
            font-size: 14px;
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item .collapse:not(.show) .faq-toggle i {
            transform: rotate(0deg);
        }
        .faq-item .collapse.show .faq-toggle i {
            transform: rotate(45deg);
        }
        .faq-body {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }
        .faq-body p {
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: linear-gradient(120deg, #0A1B3D 0%, #123A6E 100%);
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 520px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .footer-section {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
            padding-top: 64px;
        }
        .footer-col {
            margin-bottom: 32px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 20px;
        }
        .footer-title {
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-tertiary);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }
        .footer-links,
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
        }
        .footer-links a,
        .footer-contact a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: all var(--transition-fast);
            display: inline-block;
        }
        .footer-links a:hover,
        .footer-contact a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }
        .footer-contact i {
            color: var(--accent);
            width: 18px;
            margin-right: 6px;
            font-size: 13px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
            margin-top: 32px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-tertiary);
            margin: 0;
        }
        .footer-bottom a {
            color: var(--text-tertiary);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            :root {
                --section-gap: 72px;
            }
            .main-nav .navbar-collapse {
                background: rgba(6, 11, 24, 0.98);
                border-radius: var(--radius-md);
                padding: 16px;
                margin-top: 12px;
                border: 1px solid var(--border);
            }
            .main-nav .nav-link {
                padding: 10px 12px !important;
            }
            .main-nav .nav-link::after {
                display: none;
            }
            .mega-panel {
                position: static;
                width: 100%;
                max-width: 100%;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                padding: 16px 0 0;
                background: transparent;
            }
            .mega-panel .row {
                flex-direction: column;
            }
            .mega-panel .col-4 {
                width: 100%;
                margin-bottom: 12px;
            }
            .page-hero {
                min-height: 280px;
                padding: 48px 0;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .hero-visual {
                margin-top: 28px;
            }
            .hero-visual img {
                height: 200px;
            }
            .scenario-list,
            .process-grid {
                grid-template-columns: 1fr 1fr;
            }
            .guide-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .guide-side {
                position: static;
            }
            .stat-number {
                font-size: 32px;
            }
        }
        @media (max-width: 767.98px) {
            :root {
                --section-gap: 56px;
            }
            .site-container {
                padding: 0 16px;
            }
            .topbar {
                display: none;
            }
            .page-hero {
                padding: 40px 0;
                min-height: auto;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-desc {
                font-size: 15px;
            }
            .hero-actions .btn-main,
            .hero-actions .btn-ghost {
                width: 100%;
            }
            .scenario-list,
            .process-grid {
                grid-template-columns: 1fr;
            }
            .process-grid::before {
                display: none;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .stats-section .row {
                gap: 12px;
            }
            .stat-item {
                padding: 16px 8px;
            }
            .stat-number {
                font-size: 28px;
            }
            .guide-block {
                padding: 24px 20px;
            }
            .guide-block h2 {
                font-size: 20px;
            }
            .faq-toggle {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-body {
                padding: 0 18px 16px;
                font-size: 14px;
                line-height: 1.65;
            }
            .cta-section {
                padding: 64px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-actions .btn-main,
            .cta-actions .btn-ghost {
                width: 100%;
            }
            .highlight-thumb {
                height: 140px;
            }
        }