/* roulang page: index */
:root {
  --bg-deep: #060B1E;
  --bg-main: #0A1128;
  --bg-layer: #131C3A;
  --accent: #00E5FF;
  --accent-glow: rgba(0, 229, 255, 0.35);
  --accent-border: rgba(0, 229, 255, 0.3);
  --gold: #F5A623;
  --gold-glow: rgba(245, 166, 35, 0.3);
  --text-primary: #E8EDFA;
  --text-secondary: #8A94B8;
  --text-muted: #5A6385;
  --border-light: rgba(255, 255, 255, 0.06);
  --border-glass: rgba(255, 255, 255, 0.10);
  --card-radius: 16px;
  --btn-radius: 12px;
  --shadow-card: 0 8px 30px rgba(2, 6, 23, 0.4);
  --shadow-hover: 0 16px 40px rgba(2, 6, 23, 0.6);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { background: none; border: none; font: inherit; color: inherit; cursor: pointer; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}
.container-custom { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.section { padding: 96px 0; position: relative; }
.section-head { margin-bottom: 48px; }
.section-title { font-size: 32px; font-weight: 800; letter-spacing: 0.02em; color: var(--text-primary); line-height: 1.25; }
.section-subtitle { margin-top: 12px; font-size: 17px; color: var(--text-secondary); }
section[id] { scroll-margin-top: 80px; }

.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--card-radius);
}

.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--accent); color: #062A34; font-weight: 700; font-size: 16px;
  padding: 14px 32px; border-radius: var(--btn-radius);
  box-shadow: 0 0 20px var(--accent-glow);
  transition: all 0.25s ease; line-height: 1;
}
.btn-primary:hover { box-shadow: 0 0 30px rgba(0, 229, 255, 0.55); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 0 20px var(--accent-glow); }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: transparent; border: 1px solid rgba(255, 255, 255, 0.6); color: #FFFFFF;
  font-weight: 600; font-size: 16px; padding: 14px 32px; border-radius: var(--btn-radius);
  transition: all 0.25s ease; line-height: 1;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); box-shadow: 0 0 16px rgba(0, 229, 255, 0.2); }
.btn-outline:active { transform: translateY(0); }
.btn-cta-lg { height: 56px; padding: 0 44px; font-size: 17px; }
.header-cta { height: 36px; padding: 0 18px; font-size: 14px; border-radius: 10px; }

.tag {
  display: inline-flex; align-items: center; padding: 4px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 500; background: rgba(0, 229, 255, 0.10); color: var(--accent);
}
.more-link { font-size: 14px; color: var(--text-secondary); transition: color 0.2s; display: inline-flex; align-items: center; gap: 4px; }
.more-link:hover { color: var(--accent); }

.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50; height: 64px;
  background: rgba(10, 17, 40, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 20px; letter-spacing: 0.02em; color: var(--text-primary); line-height: 1; }
.brand:hover { color: var(--text-primary); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-link { font-size: 14px; color: var(--text-secondary); transition: color 0.2s; position: relative; padding: 22px 0; line-height: 1; }
.nav-link:hover { color: #ffffff; }
.nav-link.active { color: var(--accent); }
.nav-link.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--accent); border-radius: 2px 2px 0 0; }
.countdown-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255, 255, 255, 0.05); border: 1px solid var(--border-glass);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-radius: 999px; padding: 6px 14px; font-size: 12px; color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}
.countdown-pill svg { width: 14px; height: 14px; color: var(--accent); }
.countdown-pill .countdown-time { color: var(--accent); font-weight: 600; }

.menu-btn { width: 44px; height: 44px; display: none; align-items: center; justify-content: center; color: #ffffff; border-radius: 10px; transition: background 0.2s; }
.menu-btn:hover { background: rgba(255, 255, 255, 0.06); }

.mobile-drawer {
  position: fixed; inset: 64px 0 auto 0; z-index: 40;
  background: rgba(10, 17, 40, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  padding: 24px;
  display: none; flex-direction: column; gap: 6px;
}
.mobile-drawer.open { display: flex; }
.mobile-drawer .nav-link { padding: 14px 0; font-size: 16px; font-weight: 500; border-bottom: 1px solid rgba(255, 255, 255, 0.04); }
.mobile-drawer .btn-primary { width: 100%; margin-top: 14px; height: 48px; }
body.menu-open { overflow: hidden; }

.hero { position: relative; display: flex; align-items: center; min-height: 100vh; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat; }
.hero-overlay {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 15% 25%, rgba(0, 229, 255, 0.12), transparent 55%),
    radial-gradient(circle at 85% 30%, rgba(245, 166, 35, 0.10), transparent 50%),
    linear-gradient(115deg, rgba(10, 17, 40, 0.78) 0%, rgba(10, 17, 40, 0.55) 45%, rgba(10, 17, 40, 0.35) 75%, #0A1128 100%);
}
.hero::after {
  content: ''; pointer-events: none; position: absolute; inset: 0; z-index: 1;
  background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.08) 1px, transparent 0);
  background-size: 34px 34px;
  opacity: 0.5;
  mask-image: linear-gradient(to bottom, transparent, #000 40%, #000 85%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 40%, #000 85%, transparent);
}
.hero-content { position: relative; z-index: 2; max-width: 610px; padding: 100px 0 60px; }
.hero h1 { font-size: 44px; font-weight: 800; line-height: 1.18; letter-spacing: 0.02em; color: var(--text-primary); }
.hero-subtitle { margin-top: 20px; font-size: 18px; color: var(--text-secondary); max-width: 480px; line-height: 1.6; }
.hero-actions { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 16px; }
.scroll-indicator {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  color: var(--text-muted); font-size: 12px; z-index: 2;
}
.scroll-indicator span { width: 22px; height: 34px; border: 1px solid rgba(255, 255, 255, 0.3); border-radius: 12px; position: relative; }
.scroll-indicator span::after {
  content: ''; position: absolute; top: 6px; left: 50%; width: 4px; height: 8px; margin-left: -2px;
  background: var(--accent); border-radius: 4px; animation: scrollDot 1.6s infinite;
}
@keyframes scrollDot { 0% { opacity: 1; transform: translateY(0); } 100% { opacity: 0; transform: translateY(14px); } }

.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-light);
  border-radius: var(--card-radius); padding: 32px 24px; margin-top: 48px;
}
.stat-item { text-align: center; }
.stat-num { display: block; font-size: 32px; font-weight: 800; color: var(--accent); letter-spacing: 0.02em; line-height: 1.2; }
.stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 6px; }

.step-card {
  padding: 28px 24px; border-radius: var(--card-radius); position: relative; overflow: hidden;
  transition: all 0.3s ease; height: 100%; min-height: 160px;
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover), 0 0 0 1px var(--accent-border); }
.step-num { font-size: 48px; font-weight: 800; line-height: 1; color: rgba(232, 237, 250, 0.15); position: absolute; top: 18px; right: 22px; transition: color 0.3s; }
.step-card:hover .step-num { color: var(--accent); }
.step-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--text-primary); }
.step-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; max-width: 200px; }
.step-connector {
  width: 36px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; position: relative;
}
.step-connector::before { content: ''; width: 100%; border-top: 1px dashed rgba(0, 229, 255, 0.3); }
.step-connector::after {
  content: '›'; color: rgba(0, 229, 255, 0.6); font-size: 22px; font-weight: 700;
  position: absolute; right: -4px; top: 50%; transform: translateY(-50%);
}

.reward-card {
  background: var(--bg-layer); border-radius: var(--card-radius); border: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden; transition: all 0.3s ease; height: 100%; display: flex; flex-direction: column;
}
.reward-card:hover { border-color: rgba(0, 229, 255, 0.5); box-shadow: var(--shadow-hover), 0 0 0 1px var(--accent-border); transform: translateY(-4px); }
.reward-thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg-layer); }
.reward-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.reward-card:hover .reward-thumb img { transform: scale(1.03); }
.reward-badge {
  position: absolute; top: 12px; left: 12px; z-index: 1;
  background: var(--gold); color: #1A160A; font-size: 12px; font-weight: 700;
  padding: 4px 12px; border-radius: 999px; box-shadow: 0 0 16px var(--gold-glow);
}
.reward-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.reward-body h3 { font-size: 18px; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.reward-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 14px; flex: 1; }
.reward-status {
  display: inline-flex; align-items: center; align-self: flex-start;
  font-size: 12px; color: var(--text-muted); border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 4px 12px; border-radius: 999px;
}

.task-panel { padding: 32px; border-radius: 20px; }
.task-list { display: flex; flex-direction: column; gap: 6px; }
.task-row { display: flex; align-items: center; gap: 14px; padding: 16px; border-radius: 12px; transition: background 0.2s; flex-wrap: wrap; }
.task-row:hover { background: rgba(255, 255, 255, 0.03); }
.task-info { flex: 1; min-width: 140px; }
.task-name { display: block; font-size: 15px; font-weight: 600; color: var(--text-primary); }
.task-reward { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.status-dot { width: 14px; height: 14px; border-radius: 50%; flex-shrink: 0; position: relative; }
.status-dot.active { background: var(--accent); border: 3px solid rgba(0, 229, 255, 0.2); box-shadow: 0 0 10px var(--accent-glow); animation: pulseDot 1.5s infinite; }
.status-dot.done { background: var(--gold); border: 3px solid rgba(245, 166, 35, 0.25); box-shadow: 0 0 10px var(--gold-glow); }
.status-dot.done::after { content: '✓'; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -52%); color: #1A160A; font-size: 10px; font-weight: 900; }
.status-dot.pending { background: transparent; border: 2px solid rgba(255, 255, 255, 0.25); }
@keyframes pulseDot { 0%, 100% { box-shadow: 0 0 4px var(--accent-glow); } 50% { box-shadow: 0 0 14px var(--accent-glow); } }
.task-progress-wrap { width: 160px; max-width: 100%; flex-shrink: 0; }
.progress-track { width: 100%; height: 6px; background: rgba(255, 255, 255, 0.10); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); border-radius: 999px; transition: width 0.6s ease; box-shadow: 0 0 8px var(--accent-glow); }
.progress-fill.full { background: var(--gold); box-shadow: 0 0 8px var(--gold-glow); }
.total-progress { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; border-left: 1px solid rgba(255, 255, 255, 0.06); padding-left: 28px; }
.ring-wrap { position: relative; width: 140px; height: 140px; }
.ring-wrap svg { width: 100%; height: 100%; display: block; }
.ring-bg { fill: none; stroke: rgba(255, 255, 255, 0.1); stroke-width: 10; }
.ring-fill { fill: none; stroke: var(--accent); stroke-width: 10; stroke-linecap: round; stroke-dasharray: 244.29 339.29; transform: rotate(-90deg); transform-origin: 50% 50%; filter: drop-shadow(0 0 6px var(--accent-glow)); }
.total-percent { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 34px; font-weight: 800; color: var(--text-primary); }
.total-label { margin-top: 18px; font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

.faq-list { display: flex; flex-direction: column; gap: 14px; max-width: 760px; margin: 0 auto; }
.faq-item { border-radius: 12px; overflow: hidden; transition: border-color 0.2s; }
.faq-item[open] { border-color: var(--accent-border); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; cursor: pointer;
  padding: 17px 20px; font-size: 16px; font-weight: 600; color: var(--text-primary);
  list-style: none; transition: background 0.2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 22px; color: var(--accent); transition: transform 0.3s; line-height: 1; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { background: rgba(255, 255, 255, 0.03); }
.faq-answer { padding: 0 20px 18px; font-size: 14px; color: var(--text-secondary); line-height: 1.75; }
.faq-answer p + p { margin-top: 10px; }

.cta-section { text-align: center; overflow: hidden; }
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(0, 229, 255, 0.06) 0%, transparent 60%);
  pointer-events: none;
}
.cta-title { font-size: 32px; font-weight: 800; letter-spacing: 0.02em; }
.cta-subtitle { font-size: 18px; color: var(--text-secondary); margin-top: 12px; }
.cta-action { margin-top: 36px; }

.news-list { display: flex; flex-direction: column; padding: 8px 20px; }
.news-row { display: flex; align-items: center; gap: 16px; padding: 18px 8px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); transition: background 0.2s; border-radius: 10px; }
.news-row:last-child { border-bottom: none; }
.news-row:hover { background: rgba(255, 255, 255, 0.03); }
.news-thumb { width: 64px; height: 64px; border-radius: 10px; overflow: hidden; flex-shrink: 0; background: var(--bg-layer); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-content { flex: 1; min-width: 0; }
.news-content h3 {
  font-size: 16px; font-weight: 600; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color 0.2s;
}
.news-row:hover .news-content h3 { color: var(--accent); }
.news-content p {
  font-size: 14px; color: var(--text-secondary); margin-top: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.news-meta { display: flex; align-items: center; gap: 12px; margin-top: 8px; }
.news-meta time { font-size: 12px; color: var(--text-muted); }
.news-arrow { color: var(--text-muted); font-size: 18px; flex-shrink: 0; transition: all 0.2s; }
.news-row:hover .news-arrow { color: var(--accent); transform: translateX(4px); }
.news-empty {
  text-align: center; padding: 64px 20px; border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 16px; color: var(--text-secondary);
}
.empty-icon { font-size: 38px; color: rgba(255, 255, 255, 0.18); }
.news-empty p { font-size: 14px; margin-top: 12px; }

.site-footer { background: var(--bg-deep); border-top: 1px solid var(--border-light); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .brand { font-size: 20px; }
.footer-brand p { margin-top: 16px; font-size: 14px; color: var(--text-secondary); max-width: 380px; line-height: 1.7; }
.footer-links h4, .footer-contact h4 { font-size: 15px; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; }
.footer-links a { display: block; font-size: 14px; color: var(--text-secondary); padding: 6px 0; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-contact p { font-size: 14px; color: var(--text-secondary); padding: 4px 0; }
.copyright { border-top: 1px solid var(--border-light); padding: 22px 0; text-align: center; font-size: 13px; color: var(--text-muted); }
.record-slot { display: inline-block; margin-left: 8px; }

@media (max-width: 1024px) {
  .container-custom { padding-left: 20px; padding-right: 20px; }
  .total-progress { border-left: none; padding-left: 0; padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, 0.06); }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-title { font-size: 26px; }
  .section-subtitle { font-size: 15px; }
  .nav-links, .countdown-pill, .header-cta { display: none !important; }
  .menu-btn { display: inline-flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero h1 { font-size: 32px; }
  .hero-subtitle { font-size: 16px; }
  .hero-content { padding-top: 110px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 24px 16px; }
  .task-panel { padding: 20px; }
  .step-card { min-height: 140px; }
  .faq-item summary { font-size: 15px; }
}

@media (max-width: 520px) {
  .container-custom { padding-left: 16px; padding-right: 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn-primary, .hero-actions .btn-outline { width: 100%; max-width: 400px; }
  .cta-title { font-size: 24px; }
  .cta-subtitle { font-size: 15px; }
  .btn-cta-lg { height: 52px; width: 100%; max-width: 400px; }
  .news-thumb { width: 48px; height: 48px; }
  .news-content h3 { font-size: 14px; }
  .news-content p { font-size: 13px; }
  .news-list { padding: 8px 12px; }
  .task-progress-wrap { width: 100%; margin-left: 28px; }
  .task-row { padding: 14px 10px; }
  .stats-bar { padding: 24px 16px; }
  .stat-num { font-size: 28px; }
}

/* roulang page: category1 */
:root {
      --bg-deep: #060B1E;
      --bg-primary: #0A1128;
      --bg-layer: #131C3A;
      --accent: #00E5FF;
      --gold: #F5A623;
      --text-primary: #E8EDFA;
      --text-secondary: #8A94B8;
      --text-weak: #5A6385;
      --border-glass: rgba(255, 255, 255, 0.10);
      --radius-card: 16px;
      --radius-btn: 12px;
      --shadow-card: 0 8px 30px rgba(2, 6, 23, 0.4);
      --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.35);
      --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-stack);
      background-color: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: var(--accent);
      text-decoration: none;
      transition: color 0.25s ease;
    }

    a:hover {
      color: #ffffff;
    }

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

    button {
      font-family: inherit;
      cursor: pointer;
      border: none;
      background: none;
      color: inherit;
    }

    .container-custom {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .glass {
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid var(--border-glass);
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 64px;
      background: rgba(10, 17, 40, 0.82);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      z-index: 1000;
    }

    .header-inner {
      height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 20px;
      letter-spacing: 0.02em;
      color: var(--text-primary);
      white-space: nowrap;
    }

    .brand:hover {
      color: var(--text-primary);
    }

    .brand-dot {
      color: var(--accent);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-link {
      position: relative;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 6px 2px;
      transition: color 0.25s ease;
    }

    .nav-link:hover {
      color: #ffffff;
    }

    .nav-link.active {
      color: var(--accent);
    }

    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent);
      border-radius: 0 0 4px 4px;
      box-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .btn-nav {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 36px;
      padding: 0 20px;
      background: var(--accent);
      color: #04142b;
      font-size: 14px;
      font-weight: 600;
      border-radius: 10px;
      box-shadow: 0 0 18px rgba(0, 229, 255, 0.35);
      transition: box-shadow 0.3s ease, transform 0.2s ease;
    }

    .btn-nav:hover {
      color: #04142b;
      box-shadow: 0 0 30px rgba(0, 229, 255, 0.55);
      transform: translateY(-1px);
    }

    .btn-nav:active {
      transform: translateY(1px);
      box-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
    }

    .btn-nav:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 44px;
      height: 44px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 10px;
      align-items: center;
    }

    .menu-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      background: #ffffff;
      border-radius: 2px;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .menu-toggle.active span:nth-child(1) {
      transform: rotate(45deg) translate(4px, 4px);
    }

    .menu-toggle.active span:nth-child(2) {
      opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -5px);
    }

    .mobile-menu {
      display: none;
      position: fixed;
      top: 64px;
      left: 0;
      width: 100%;
      background: rgba(10, 17, 40, 0.97);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      padding: 16px 24px 24px;
      z-index: 999;
      flex-direction: column;
      gap: 4px;
    }

    .mobile-menu.open {
      display: flex;
    }

    .mobile-menu a {
      display: block;
      padding: 14px 12px;
      font-size: 16px;
      font-weight: 500;
      color: var(--text-secondary);
      border-radius: 10px;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .mobile-menu a:hover {
      background: rgba(255, 255, 255, 0.04);
      color: #ffffff;
    }

    .mobile-menu a.active {
      color: var(--accent);
      background: rgba(0, 229, 255, 0.06);
    }

    /* ===== Hero ===== */
    .cat-hero {
      position: relative;
      min-height: 60vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 140px 24px 80px;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      text-align: center;
      overflow: hidden;
    }

    .cat-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(10, 17, 40, 0.72);
      z-index: 1;
    }

    .cat-hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 20% 80%, rgba(0, 229, 255, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(245, 166, 35, 0.05) 0%, transparent 30%),
        linear-gradient(180deg, rgba(10, 17, 40, 0.65) 0%, transparent 40%, var(--bg-primary) 100%);
      z-index: 2;
    }

    .cat-hero .hero-content {
      position: relative;
      z-index: 3;
      max-width: 760px;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.10);
      border-radius: 999px;
      font-size: 13px;
      color: var(--text-secondary);
      letter-spacing: 0.04em;
      margin-bottom: 28px;
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
    }

    .hero-tag .dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 10px var(--accent);
      animation: pulse-dot 2s ease-in-out infinite;
    }

    @keyframes pulse-dot {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.4; }
    }

    .cat-hero h1 {
      font-size: 44px;
      font-weight: 800;
      letter-spacing: 0.02em;
      color: #ffffff;
      line-height: 1.2;
      margin-bottom: 12px;
    }

    .hero-divider {
      width: 48px;
      height: 3px;
      background: linear-gradient(90deg, var(--accent), transparent);
      border-radius: 999px;
      margin: 20px auto 20px;
    }

    .cat-hero .hero-sub {
      font-size: 18px;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 32px;
    }

    /* ===== Section ===== */
    .section {
      padding: 80px 0;
    }

    .section-title {
      font-size: 28px;
      font-weight: 700;
      letter-spacing: 0.02em;
      color: #ffffff;
      text-align: center;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-secondary);
      text-align: center;
      max-width: 600px;
      margin: 0 auto 40px;
      line-height: 1.7;
    }

    .section-title-line {
      width: 48px;
      height: 3px;
      background: linear-gradient(90deg, var(--accent), transparent);
      border-radius: 999px;
      margin: 14px auto 0;
    }

    /* ===== Value Cards ===== */
    .value-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .value-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-card);
      padding: 28px 24px;
      transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .value-card:hover {
      transform: translateY(-2px);
      border-color: rgba(0, 229, 255, 0.5);
      box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.3), 0 16px 40px rgba(2, 6, 23, 0.6);
    }

    .value-card .card-num {
      font-size: 36px;
      font-weight: 800;
      color: rgba(255, 255, 255, 0.10);
      line-height: 1;
      margin-bottom: 16px;
      transition: color 0.3s ease;
    }

    .value-card:hover .card-num {
      color: rgba(0, 229, 255, 0.35);
    }

    .value-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 8px;
    }

    .value-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
    }

    /* ===== Audience ===== */
    .audience-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .audience-image {
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      position: relative;
    }

    .audience-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 320px;
      transition: transform 0.4s ease;
    }

    .audience-image:hover img {
      transform: scale(1.03);
    }

    .audience-list {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .audience-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      padding: 16px;
      border-radius: 12px;
      transition: background 0.25s ease, transform 0.25s ease;
    }

    .audience-item:hover {
      background: rgba(255, 255, 255, 0.03);
      transform: translateX(4px);
    }

    .audience-item .icon-wrap {
      flex-shrink: 0;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(0, 229, 255, 0.10);
      color: var(--accent);
    }

    .audience-item h4 {
      font-size: 16px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 2px;
    }

    .audience-item p {
      font-size: 14px;
      color: var(--text-secondary);
    }

    /* ===== Steps ===== */
    .steps-section {
      background: linear-gradient(180deg, transparent, rgba(19, 28, 58, 0.4), transparent);
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      position: relative;
    }

    .steps-grid::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 12%;
      right: 12%;
      height: 1px;
      border-top: 1px dashed rgba(0, 229, 255, 0.25);
      transform: translateY(-50%);
      pointer-events: none;
    }

    .step-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.10);
      border-radius: var(--radius-card);
      padding: 32px 28px;
      text-align: center;
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      position: relative;
      z-index: 1;
    }

    .step-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.25), 0 16px 40px rgba(2, 6, 23, 0.5);
    }

    .step-number {
      font-size: 42px;
      font-weight: 800;
      color: rgba(0, 229, 255, 0.30);
      line-height: 1;
      margin-bottom: 12px;
    }

    .step-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 14px;
      color: var(--text-secondary);
    }

    /* ===== Topics ===== */
    .topics-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .topic-card {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-card);
      overflow: hidden;
      transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
    }

    .topic-card:hover {
      border-color: rgba(0, 229, 255, 0.5);
      box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.3), 0 16px 40px rgba(2, 6, 23, 0.6);
      transform: translateY(-3px);
    }

    .topic-card .cover {
      position: relative;
      aspect-ratio: 16 / 9;
      overflow: hidden;
    }

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

    .topic-card:hover .cover img {
      transform: scale(1.03);
    }

    .topic-card .badge-gold {
      position: absolute;
      top: 12px;
      left: 12px;
      padding: 4px 12px;
      background: rgba(245, 166, 35, 0.92);
      color: #04142b;
      font-size: 12px;
      font-weight: 600;
      border-radius: 999px;
      box-shadow: 0 0 16px rgba(245, 166, 35, 0.3);
    }

    .topic-card .body {
      padding: 20px 20px 22px;
    }

    .topic-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 6px;
    }

    .topic-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
    }

    .topic-card .tag-row {
      display: flex;
      gap: 8px;
      margin-top: 14px;
      flex-wrap: wrap;
    }

    .topic-card .tag {
      display: inline-block;
      padding: 4px 10px;
      font-size: 12px;
      color: var(--text-secondary);
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 999px;
    }

    /* ===== FAQ ===== */
    .faq-wrap {
      max-width: 760px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 12px;
      padding: 0;
      overflow: hidden;
      transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .faq-item:hover {
      border-color: rgba(0, 229, 255, 0.25);
    }

    .faq-item.open {
      border-color: rgba(0, 229, 255, 0.4);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 22px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: #ffffff;
      transition: background 0.2s ease;
      background: transparent;
      width: 100%;
      text-align: left;
    }

    .faq-question:hover {
      background: rgba(255, 255, 255, 0.02);
    }

    .faq-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(0, 229, 255, 0.10);
      color: var(--accent);
      font-size: 18px;
      font-weight: 400;
      transition: transform 0.3s ease, background 0.3s ease;
      flex-shrink: 0;
      line-height: 1;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: rgba(0, 229, 255, 0.2);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
    }

    .faq-answer .inner-answer {
      padding: 0 22px 20px;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.75;
    }

    .faq-item.open .faq-answer {
      max-height: 300px;
    }

    /* ===== CTA ===== */
    .cta-section {
      text-align: center;
      padding: 80px 0 100px;
      position: relative;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 50% 120%, rgba(0, 229, 255, 0.10) 0%, transparent 60%);
      pointer-events: none;
    }

    .cta-section h2 {
      font-size: 28px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
    }

    .cta-section .cta-desc {
      font-size: 16px;
      color: var(--text-secondary);
      margin-bottom: 32px;
    }

    .btn-primary {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 56px;
      padding: 0 44px;
      background: var(--accent);
      color: #04142b;
      font-size: 16px;
      font-weight: 700;
      border-radius: 14px;
      box-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
      transition: box-shadow 0.3s ease, transform 0.2s ease, background 0.2s ease;
      min-height: 44px;
    }

    .btn-primary:hover {
      color: #04142b;
      box-shadow: 0 0 40px rgba(0, 229, 255, 0.55);
      transform: translateY(-2px);
    }

    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: 0 0 16px rgba(0, 229, 255, 0.4);
    }

    .btn-primary:focus-visible {
      outline: 2px solid #ffffff;
      outline-offset: 3px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--bg-deep);
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 56px;
      padding-bottom: 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand .brand {
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--text-secondary);
      max-width: 360px;
      line-height: 1.7;
    }

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

    .footer-links h4 {
      font-size: 15px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 4px;
    }

    .footer-links a {
      font-size: 14px;
      color: var(--text-secondary);
      transition: color 0.25s ease;
    }

    .footer-links a:hover {
      color: var(--accent);
    }

    .footer-contact h4 {
      font-size: 15px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 8px;
    }

    .footer-contact p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    .copyright {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 14px;
      color: var(--text-weak);
    }

    .record-slot::before {
      content: '';
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .value-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .topics-grid {
        grid-template-columns: repeat(2, 1fr);
      }

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

    @media (max-width: 768px) {
      .container-custom {
        padding-left: 16px;
        padding-right: 16px;
      }

      .nav-links {
        display: none;
      }

      .menu-toggle {
        display: flex;
      }

      .header-actions .btn-nav {
        display: none;
      }

      .cat-hero {
        padding: 120px 16px 60px;
        min-height: 50vh;
      }

      .cat-hero h1 {
        font-size: 30px;
      }

      .cat-hero .hero-sub {
        font-size: 16px;
        padding: 0 8px;
      }

      .section {
        padding: 56px 0;
      }

      .section-title {
        font-size: 24px;
      }

      .value-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .audience-wrap {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .audience-image img {
        min-height: 200px;
      }

      .steps-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .steps-grid::before {
        display: none;
      }

      .topics-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .topic-card .body {
        padding: 16px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .btn-primary {
        width: 100%;
        max-width: 400px;
        height: 52px;
      }

      .cta-section {
        padding: 56px 0 64px;
      }
    }

    @media (max-width: 520px) {
      .header-inner {
        gap: 12px;
      }

      .brand {
        font-size: 18px;
      }

      .value-card {
        padding: 22px 18px;
      }

      .step-card {
        padding: 24px 18px;
      }

      .faq-question {
        padding: 16px 16px;
        font-size: 15px;
      }

      .faq-answer .inner-answer {
        padding: 0 16px 16px;
        font-size: 14px;
      }
    }

    @media (max-width: 640px) {
      .topic-card .cover img {
        min-height: 180px;
      }
    }

/* roulang page: article */
:root {
    --deep: #060B1E;
    --bg: #0A1128;
    --card: #131C3A;
    --accent: #00E5FF;
    --gold: #F5A623;
    --text: #E8EDFA;
    --subtext: #8A94B8;
    --weak: #5A6385;
    --radius-card: 16px;
    --radius-btn: 12px;
    --radius-tag: 999px;
    --shadow-card: 0 8px 30px rgba(2,6,23,0.4);
    --shadow-card-hover: 0 16px 40px rgba(2,6,23,0.6);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
      linear-gradient(rgba(0, 229, 255, 0.028) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0, 229, 255, 0.028) 1px, transparent 1px);
    background-size: 64px 64px;
  }

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

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

  button {
    cursor: pointer;
    font-family: inherit;
  }

  .container-custom {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.10);
  }

  a:focus-visible,
  button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
  }

  /* ===== 导航 ===== */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 64px;
    background: rgba(10, 17, 40, 0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .header-inner {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 0.02em;
    white-space: nowrap;
    transition: opacity 0.25s ease;
  }

  .brand:hover {
    opacity: 0.9;
  }

  .brand svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
  }

  .brand-accent {
    color: var(--accent);
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
  }

  .nav-link {
    position: relative;
    font-size: 14px;
    color: var(--subtext);
    font-weight: 500;
    padding: 6px 2px;
    transition: color 0.25s ease;
  }

  .nav-link:hover {
    color: #ffffff;
  }

  .nav-link.active {
    color: var(--accent);
  }

  .nav-link.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -22px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.6);
  }

  .header-right {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .countdown-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 12px;
  }

  .cd-label {
    color: var(--subtext);
  }

  .cd-time {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.05em;
  }

  .btn-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    padding: 0 20px;
    border-radius: 10px;
    background: var(--accent);
    color: #06213A;
    font-size: 14px;
    font-weight: 700;
    border: none;
    transition: box-shadow 0.3s ease, transform 0.2s ease, background 0.2s ease;
  }

  .btn-cta:hover {
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.55);
    transform: translateY(-1px);
  }

  .btn-cta:active {
    transform: translateY(1px);
    box-shadow: 0 0 16px rgba(0, 229, 255, 0.35);
  }

  .menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    padding: 8px;
    border-radius: 8px;
    z-index: 1102;
  }

  .menu-toggle .bar {
    width: 20px;
    height: 2px;
    background: #ffffff;
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .mobile-drawer {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10, 17, 40, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 24px;
    flex-direction: column;
    gap: 20px;
    transform: translateY(-110%);
    transition: transform 0.35s ease;
    z-index: 1099;
  }

  .mobile-drawer.open {
    transform: translateY(0);
  }

  .mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .mobile-nav-link {
    font-size: 16px;
    color: var(--text);
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: color 0.2s ease;
  }

  .mobile-nav-link:hover {
    color: var(--accent);
  }

  .mobile-nav-link.active {
    color: var(--accent);
  }

  .mobile-cta {
    width: 100%;
    height: 44px;
  }

  /* ===== 页面横幅 / 面包屑 ===== */
  .page-banner {
    position: relative;
    padding: 128px 0 48px;
    background-color: var(--bg);
    overflow: hidden;
  }

  .page-banner-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.45;
  }

  .page-banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 17, 40, 0.78) 0%, rgba(10, 17, 40, 0.42) 55%, #0A1128 100%);
  }

  .page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background-image:
      radial-gradient(1px 1px at 18% 28%, rgba(255, 255, 255, 0.4), transparent),
      radial-gradient(1px 1px at 72% 45%, rgba(255, 255, 255, 0.3), transparent),
      radial-gradient(1.5px 1.5px at 42% 68%, rgba(255, 255, 255, 0.35), transparent),
      radial-gradient(1px 1px at 86% 22%, rgba(255, 255, 255, 0.35), transparent),
      radial-gradient(1px 1px at 12% 78%, rgba(255, 255, 255, 0.28), transparent);
    pointer-events: none;
  }

  .page-banner-inner {
    position: relative;
    z-index: 2;
  }

  .banner-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 12px;
    color: var(--accent);
    margin-bottom: 18px;
    letter-spacing: 0.03em;
  }

  .gold-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 12px rgba(245, 166, 35, 0.7);
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
    color: var(--subtext);
  }

  .breadcrumb a {
    color: var(--subtext);
    transition: color 0.2s ease;
  }

  .breadcrumb a:hover {
    color: var(--accent);
  }

  .breadcrumb .sep {
    color: var(--weak);
  }

  .breadcrumb .current {
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 360px;
  }

  /* ===== 文章主体 ===== */
  .article-main {
    position: relative;
    z-index: 2;
    padding-top: 56px;
    padding-bottom: 32px;
  }

  .article-card {
    max-width: 800px;
    margin: 0 auto;
    border-radius: 16px;
    padding: 40px 48px;
  }

  .article-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.35;
    letter-spacing: 0.02em;
    margin-bottom: 16px;
    word-break: break-word;
  }

  .article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
    color: var(--subtext);
  }

  .meta-dot {
    color: var(--weak);
  }

  .category-label {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 12px;
    background: rgba(0, 229, 255, 0.1);
    color: var(--accent);
    border: 1px solid rgba(0, 229, 255, 0.2);
  }

  .article-divider {
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.02));
    margin: 24px 0 32px;
  }

  .article-body {
    font-size: 17px;
    line-height: 1.8;
    color: #C6CEE2;
    word-break: break-word;
  }

  .article-body > * + * {
    margin-top: 24px;
  }

  .article-body h2 {
    font-size: 24px;
    color: var(--text);
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-top: 40px;
    margin-bottom: 16px;
  }

  .article-body h3 {
    font-size: 19px;
    color: var(--text);
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
  }

  .article-body p {
    margin-bottom: 24px;
  }

  .article-body ul,
  .article-body ol {
    margin: 0 0 24px;
    padding-left: 22px;
  }

  .article-body ul li {
    list-style: disc;
    margin-bottom: 8px;
  }

  .article-body ol li {
    list-style: decimal;
    margin-bottom: 8px;
  }

  .article-body li::marker {
    color: var(--accent);
  }

  .article-body li {
    margin-bottom: 8px;
  }

  .article-body blockquote {
    border-left: 3px solid var(--accent);
    background: rgba(0, 229, 255, 0.06);
    padding: 16px 20px;
    border-radius: 0 12px 12px 0;
    margin: 24px 0;
    color: #B8C2DC;
  }

  .article-body blockquote p {
    margin-bottom: 0;
  }

  .article-body img {
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(2, 6, 23, 0.4);
    margin: 24px 0;
    height: auto;
  }

  .article-body figure {
    margin: 24px 0;
  }

  .article-body figure img {
    margin: 0;
  }

  .article-body figcaption {
    text-align: center;
    font-size: 14px;
    color: var(--subtext);
    margin-top: 8px;
  }

  .article-body pre {
    background: #0D152E;
    border-radius: 10px;
    padding: 16px 20px;
    overflow-x: auto;
    margin: 24px 0;
    border: 1px solid rgba(255, 255, 255, 0.06);
  }

  .article-body code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 14px;
    color: #A7F3E8;
    background: rgba(255, 255, 255, 0.04);
    padding: 2px 6px;
    border-radius: 6px;
  }

  .article-body pre code {
    background: transparent;
    padding: 0;
    color: #A7F3E8;
  }

  .article-body a {
    color: var(--accent);
    border-bottom: 1px solid rgba(0, 229, 255, 0.3);
    transition: border-color 0.2s ease;
  }

  .article-body a:hover {
    border-bottom-color: var(--accent);
  }

  .article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 15px;
  }

  .article-body th,
  .article-body td {
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 10px 12px;
    text-align: left;
  }

  .article-body th {
    background: rgba(0, 229, 255, 0.06);
    color: var(--text);
    font-weight: 600;
  }

  .article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    color: var(--subtext);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.2s ease;
  }

  .tag:hover {
    color: var(--accent);
    border-color: rgba(0, 229, 255, 0.3);
  }

  /* ===== 相关推荐 ===== */
  .related-section {
    max-width: 800px;
    margin: 56px auto 0;
    position: relative;
    z-index: 2;
  }

  .section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
  }

  .section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 0.02em;
  }

  .text-link {
    font-size: 14px;
    color: var(--subtext);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s ease;
  }

  .text-link:hover {
    color: var(--accent);
  }

  .related-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .related-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  }

  .related-card:hover {
    border-color: rgba(0, 229, 255, 0.4);
    box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.2), 0 8px 30px rgba(2, 6, 23, 0.5);
    transform: translateY(-2px);
  }

  .related-link {
    display: flex;
    align-items: stretch;
    gap: 20px;
    padding: 16px;
  }

  .related-img {
    flex: 0 0 160px;
    border-radius: 12px;
    overflow: hidden;
  }

  .related-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s ease;
  }

  .related-card:hover .related-img img {
    transform: scale(1.03);
  }

  .related-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
  }

  .related-body h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    transition: color 0.2s ease;
  }

  .related-card:hover .related-body h3 {
    color: var(--accent);
  }

  .related-body p {
    font-size: 14px;
    color: var(--subtext);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .related-meta {
    margin-top: 12px;
    font-size: 12px;
    color: var(--weak);
  }

  /* ===== 内容未找到 ===== */
  .not-found-card {
    max-width: 800px;
    margin: 80px auto;
    padding: 80px 40px;
    text-align: center;
    border-radius: 16px;
  }

  .not-found-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 229, 255, 0.08);
    border: 1px solid rgba(0, 229, 255, 0.2);
  }

  .not-found-card h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
  }

  .not-found-card p {
    font-size: 14px;
    color: var(--subtext);
    margin-bottom: 24px;
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 28px;
    border-radius: 12px;
    background: var(--accent);
    color: #06213A;
    font-size: 14px;
    font-weight: 700;
    border: none;
    transition: box-shadow 0.3s ease, transform 0.2s ease;
  }

  .btn-primary:hover {
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.55);
    transform: translateY(-1px);
  }

  .btn-primary:active {
    transform: translateY(1px);
  }

  /* ===== 页脚 ===== */
  .site-footer {
    position: relative;
    z-index: 2;
    background: var(--deep);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 56px 0 28px;
    margin-top: 80px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
  }

  .footer-brand p {
    font-size: 14px;
    color: var(--subtext);
    margin-top: 12px;
    line-height: 1.7;
    max-width: 360px;
  }

  .footer-links h4,
  .footer-contact h4 {
    font-size: 14px;
    color: var(--text);
    font-weight: 600;
    margin-bottom: 14px;
  }

  .footer-links a {
    display: block;
    font-size: 14px;
    color: var(--subtext);
    padding: 4px 0;
    transition: color 0.25s ease;
  }

  .footer-links a:hover {
    color: var(--accent);
  }

  .footer-contact p {
    font-size: 14px;
    color: var(--subtext);
    padding: 4px 0;
  }

  .copyright {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: var(--weak);
  }

  .record-slot {
    display: inline-block;
  }

  /* ===== 响应式 ===== */
  @media (max-width: 1024px) {
    .nav-links {
      gap: 20px;
    }

    .countdown-pill {
      display: none;
    }
  }

  @media (max-width: 768px) {
    .nav-links {
      display: none;
    }

    .header-right .btn-cta {
      display: none;
    }

    .menu-toggle {
      display: flex;
    }

    .mobile-drawer {
      display: flex;
    }

    .page-banner {
      padding: 104px 0 40px;
    }

    .article-card {
      padding: 28px 24px;
    }

    .article-title {
      font-size: 26px;
    }

    .article-main {
      padding-top: 40px;
    }

    .related-link {
      flex-direction: column;
    }

    .related-img {
      flex: none;
      width: 100%;
      height: 140px;
    }

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

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

    .page-banner {
      padding: 96px 0 32px;
    }

    .article-card {
      padding: 20px 16px;
      border-radius: 12px;
    }

    .article-title {
      font-size: 22px;
    }

    .article-meta {
      font-size: 13px;
      gap: 6px;
    }

    .article-body {
      font-size: 16px;
    }

    .article-body h2 {
      font-size: 20px;
    }

    .article-body h3 {
      font-size: 17px;
    }

    .breadcrumb .current {
      max-width: 180px;
    }

    .section-title {
      font-size: 22px;
    }

    .related-link {
      padding: 12px;
    }

    .related-body h3 {
      font-size: 16px;
    }

    .not-found-card {
      padding: 48px 20px;
      margin: 48px auto;
    }

    .copyright {
      flex-direction: column;
      text-align: center;
    }
  }

/* roulang page: category2 */
:root {
    --bg-deep: #060B1E;
    --bg-main: #0A1128;
    --bg-card: #131C3A;
    --accent: #00E5FF;
    --gold: #F5A623;
    --text-main: #E8EDFA;
    --text-sub: #8A94B8;
    --text-weak: #5A6385;
    --border-dim: rgba(255,255,255,0.06);
    --radius-card: 16px;
    --radius-btn: 12px;
    --radius-tag: 999px;
    --shadow-card: 0 8px 30px rgba(2,6,23,0.4);
    --shadow-card-hover: 0 16px 40px rgba(2,6,23,0.6);
    --glow-btn: 0 0 20px rgba(0,229,255,0.35);
    --glow-btn-hover: 0 0 30px rgba(0,229,255,0.55);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  a {
    color: var(--accent);
    text-decoration: none;
    transition: color .25s ease, box-shadow .25s ease;
  }

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

  button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
  }

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

  .container-narrow {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 24px;
  }

  .glass {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.10);
  }

  .section-padding {
    padding: 96px 0;
  }

  @media (max-width: 768px) {
    .section-padding {
      padding: 56px 0;
    }
  }

  /* ---------- Header / Nav ---------- */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: 64px;
    background: rgba(10,17,40,0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-dim);
    transition: box-shadow .3s ease;
  }

  .site-header.scrolled {
    box-shadow: 0 4px 30px rgba(2,6,23,0.5);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 24px;
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 20px;
    letter-spacing: 0.04em;
    color: #fff;
    flex-shrink: 0;
  }

  .brand:hover {
    color: #fff;
  }

  .brand svg {
    flex-shrink: 0;
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0 auto;
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    height: 64px;
    padding: 0 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-sub);
    position: relative;
    transition: color .25s ease;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px 2px 0 0;
    transform: scaleX(0);
    transition: transform .25s ease;
  }

  .nav-link:hover {
    color: #fff;
  }

  .nav-link.active {
    color: var(--accent);
  }

  .nav-link.active::after {
    transform: scaleX(1);
  }

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

  .cta-btn-header {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    padding: 0 20px;
    background: var(--accent);
    color: #0A1128;
    font-size: 14px;
    font-weight: 600;
    border-radius: 10px;
    box-shadow: var(--glow-btn);
    transition: all .3s ease;
    white-space: nowrap;
  }

  .cta-btn-header:hover {
    box-shadow: var(--glow-btn-hover);
    transform: translateY(-1px);
  }

  .cta-btn-header:active {
    transform: translateY(0);
    filter: brightness(0.9);
  }

  .cta-btn-header:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }

  .mobile-menu-btn {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    color: #fff;
    border-radius: 10px;
    transition: background .2s ease;
  }

  .mobile-menu-btn:hover {
    background: rgba(255,255,255,0.06);
  }

  .mobile-menu-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }

  .mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    z-index: 99;
    background: rgba(10,17,40,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-dim);
    padding: 16px 24px 24px;
    flex-direction: column;
    gap: 4px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: all .3s ease;
  }

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

  .mobile-menu a {
    display: flex;
    align-items: center;
    height: 48px;
    padding: 0 12px;
    border-radius: 10px;
    font-size: 16px;
    color: var(--text-sub);
    transition: background .2s ease, color .2s ease;
  }

  .mobile-menu a:hover {
    background: rgba(255,255,255,0.06);
    color: #fff;
  }

  .mobile-menu a.active {
    color: var(--accent);
    font-weight: 600;
  }

  .mobile-menu .cta-btn-header {
    margin-top: 16px;
    width: 100%;
    height: 48px;
  }

  @media (max-width: 1024px) {
    .nav-links {
      display: none;
    }

    .mobile-menu-btn {
      display: flex;
    }

    .header-actions .cta-btn-header {
      display: none;
    }

    .mobile-menu {
      display: flex;
    }
  }

  @media (min-width: 1025px) {
    .mobile-menu {
      display: none !important;
    }
  }

  /* ---------- Page Hero ---------- */
  .page-hero {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    padding: 160px 0 80px;
    background-image: url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    isolation: isolate;
  }

  .page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10,17,40,0.72) 0%, rgba(10,17,40,0.55) 50%, var(--bg-main) 100%);
    z-index: -1;
  }

  .page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(0,229,255,0.06) 1px, transparent 1px);
    background-size: 24px 24px;
    z-index: -1;
  }

  .page-hero-content {
    max-width: 720px;
  }

  .page-hero h1 {
    font-size: 44px;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: 0.02em;
    line-height: 1.2;
  }

  .hero-line {
    width: 40px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent), rgba(255,255,255,0.3));
    margin: 20px 0 20px;
  }

  .page-hero p {
    font-size: 18px;
    color: var(--text-sub);
    line-height: 1.7;
    max-width: 560px;
  }

  @media (max-width: 768px) {
    .page-hero {
      min-height: 340px;
      padding: 120px 0 56px;
    }

    .page-hero h1 {
      font-size: 32px;
    }

    .page-hero p {
      font-size: 16px;
    }
  }

  /* ---------- Section Headings ---------- */
  .section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 0.02em;
    line-height: 1.3;
    margin-bottom: 12px;
  }

  .section-desc {
    font-size: 16px;
    color: var(--text-sub);
    line-height: 1.7;
    margin-bottom: 40px;
  }

  @media (max-width: 768px) {
    .section-title {
      font-size: 22px;
    }

    .section-desc {
      font-size: 15px;
      margin-bottom: 28px;
    }
  }

  /* ---------- Service Cards ---------- */
  .service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-card);
    padding: 32px 28px;
    box-shadow: var(--shadow-card);
    transition: all .3s ease;
  }

  .service-card:hover {
    border-color: rgba(0,229,255,0.5);
    box-shadow: var(--shadow-card-hover), 0 0 0 1px rgba(0,229,255,0.3);
    transform: translateY(-2px);
  }

  .service-card .icon-wrap {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0,229,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: background .3s ease;
  }

  .service-card:hover .icon-wrap {
    background: rgba(0,229,255,0.18);
  }

  .service-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 10px;
  }

  .service-card p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
  }

  /* ---------- Advantage Section ---------- */
  .advantage-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }

  .advantage-block .img-wrap {
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-dim);
  }

  .advantage-block .img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
  }

  .advantage-block .img-wrap:hover img {
    transform: scale(1.02);
  }

  .advantage-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .advantage-item {
    display: flex;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-dim);
  }

  .advantage-item:last-child {
    border-bottom: none;
  }

  .advantage-item .check {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(0,229,255,0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
  }

  .advantage-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 4px;
  }

  .advantage-item p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.6;
  }

  @media (max-width: 640px) {
    .advantage-block {
      grid-template-columns: 1fr;
      gap: 32px;
    }
  }

  /* ---------- Process Steps ---------- */
  .process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
  }

  @media (max-width: 768px) {
    .process-steps {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 520px) {
    .process-steps {
      grid-template-columns: 1fr;
    }
  }

  .process-step {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-card);
    padding: 28px 24px;
    position: relative;
    transition: all .3s ease;
  }

  .process-step:hover {
    border-color: rgba(0,229,255,0.3);
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
  }

  .process-step .step-num {
    font-size: 36px;
    font-weight: 800;
    color: rgba(255,255,255,0.12);
    line-height: 1;
    margin-bottom: 16px;
    transition: color .3s ease;
  }

  .process-step:hover .step-num {
    color: var(--accent);
  }

  .process-step h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
  }

  .process-step p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.6;
  }

  /* ---------- Scenario Cards ---------- */
  .scenario-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  @media (max-width: 640px) {
    .scenario-grid {
      grid-template-columns: 1fr;
    }
  }

  .scenario-item {
    display: flex;
    gap: 16px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-dim);
    border-radius: 14px;
    padding: 24px;
    transition: all .3s ease;
  }

  .scenario-item:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(0,229,255,0.3);
    box-shadow: var(--shadow-card);
  }

  .scenario-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(0,229,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .scenario-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 6px;
  }

  .scenario-item p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.6;
  }

  /* ---------- FAQ ---------- */
  .faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .faq-item {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border-dim);
    border-radius: 12px;
    overflow: hidden;
    transition: all .3s ease;
  }

  .faq-item:hover {
    border-color: rgba(0,229,255,0.25);
  }

  .faq-item.open {
    border-color: rgba(0,229,255,0.35);
    background: rgba(255,255,255,0.05);
  }

  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    transition: background .2s ease;
    min-height: 56px;
  }

  .faq-question:hover {
    background: rgba(255,255,255,0.03);
  }

  .faq-question:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
  }

  .faq-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(0,229,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    color: var(--accent);
    transition: transform .3s ease;
  }

  .faq-item.open .faq-icon {
    transform: rotate(45deg);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }

  .faq-item.open .faq-answer {
    max-height: 500px;
  }

  .faq-answer p {
    padding: 0 24px 20px;
    font-size: 15px;
    color: var(--text-sub);
    line-height: 1.7;
  }

  /* ---------- Back Home ---------- */
  .back-home {
    text-align: center;
  }

  .back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 44px;
    padding: 0 24px;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-btn);
    color: var(--text-main);
    font-size: 15px;
    font-weight: 500;
    transition: all .3s ease;
  }

  .back-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 16px rgba(0,229,255,0.2);
  }

  .back-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }

  /* ---------- Footer ---------- */
  .site-footer {
    background: var(--bg-deep);
    border-top: 1px solid var(--border-dim);
    padding: 64px 0 0;
    margin-top: 48px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
  }

  .footer-brand p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
    margin-top: 16px;
  }

  .footer-links h4,
  .footer-contact h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 16px;
    letter-spacing: 0.04em;
  }

  .footer-links a {
    display: block;
    font-size: 14px;
    color: var(--text-sub);
    margin-bottom: 10px;
    transition: color .2s ease;
  }

  .footer-links a:hover {
    color: var(--accent);
  }

  .footer-contact p {
    font-size: 14px;
    color: var(--text-sub);
    margin-bottom: 8px;
  }

  .copyright {
    border-top: 1px solid var(--border-dim);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-weak);
  }

  .record-slot {
    width: 200px;
    height: 16px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent);
    border-radius: 4px;
  }

  @media (max-width: 768px) {
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 32px;
    }

    .copyright {
      flex-direction: column;
      gap: 12px;
      text-align: center;
    }
  }

  /* ---------- Reveal Animation ---------- */
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .6s ease, transform .6s ease;
  }

  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  @media (prefers-reduced-motion: reduce) {
    .reveal {
      opacity: 1;
      transform: none;
      transition: none;
    }
  }

  /* focus-visible global */
  a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }