/* roulang page: index */
:root {
  --bg-deep: #060b16;
  --bg-card: #0d1424;
  --bg-soft: #131c30;
  --neon: #00e5ff;
  --purple: #a855f7;
  --gold: #fbbf24;
  --text-primary: #e8ecf4;
  --text-secondary: #9ca8bf;
  --text-muted: #64748b;
  --border: rgba(148,163,184,0.15);
  --border-neon: rgba(0,229,255,0.25);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 10px 40px rgba(0,0,0,0.35);
  --shadow-neon: 0 0 40px rgba(0,229,255,0.12);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--bg-deep); color: var(--text-primary); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, select, textarea { font: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(6,11,22,0.92); backdrop-filter: blur(14px); border-bottom: 1px solid var(--border-neon); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { font-size: 1.35rem; font-weight: 800; letter-spacing: 0.5px; color: #fff; display: flex; align-items: center; gap: 8px; }
.logo i { color: var(--neon); font-size: 1.6rem; }
.logo span { color: var(--neon); font-weight: 700; }
.main-nav { display: flex; gap: 8px; align-items: center; }
.nav-link { padding: 8px 18px; border-radius: 40px; font-size: 0.95rem; font-weight: 500; color: var(--text-secondary); position: relative; transition: all 0.3s; }
.nav-link:hover { color: var(--neon); background: rgba(0,229,255,0.08); }
.nav-link.active { color: var(--neon); background: rgba(0,229,255,0.12); box-shadow: 0 0 20px rgba(0,229,255,0.15); }
.nav-link.active::after { content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%); width: 20px; height: 2px; background: var(--neon); border-radius: 2px; box-shadow: 0 0 12px var(--neon); }
.nav-cta { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, var(--neon) 0%, #06b6d4 100%); color: #03121a; font-weight: 700; padding: 10px 24px; border-radius: 40px; font-size: 0.9rem; transition: all 0.3s; box-shadow: 0 0 25px rgba(0,229,255,0.25); }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,229,255,0.35); color: #03121a; }
.menu-toggle { display: none; font-size: 1.5rem; color: var(--neon); padding: 8px; }

.hero { position: relative; min-height: 540px; display: flex; align-items: center; background-size: cover; background-position: center; padding: 80px 0; overflow: hidden; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(6,11,22,0.97) 0%, rgba(6,11,22,0.80) 50%, rgba(6,11,22,0.35) 100%); }
.hero-content { position: relative; z-index: 2; padding: 20px 0; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(0,229,255,0.12); border: 1px solid var(--border-neon); color: var(--neon); padding: 6px 18px; border-radius: 40px; font-size: 0.85rem; font-weight: 600; letter-spacing: 1px; }
.hero-title { font-size: 3rem; font-weight: 900; line-height: 1.2; color: #fff; margin-top: 24px; letter-spacing: 1px; }
.hero-title span { color: var(--neon); text-shadow: 0 0 40px rgba(0,229,255,0.4); }
.hero-subtitle { margin-top: 16px; font-size: 1.15rem; color: var(--text-secondary); max-width: 560px; }
.hero-actions { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }
.btn-neon { display: inline-flex; align-items: center; gap: 8px; padding: 12px 30px; background: linear-gradient(135deg, var(--neon), #00b7c9); border-radius: 40px; color: #03121a; font-weight: 700; font-size: 1rem; transition: all 0.3s; box-shadow: 0 0 30px rgba(0,229,255,0.3); }
.btn-neon:hover { transform: translateY(-2px); box-shadow: 0 10px 40px rgba(0,229,255,0.5); color: #03121a; }
.btn-ghost { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border: 1px solid var(--border); border-radius: 40px; color: var(--text-primary); font-weight: 600; font-size: 1rem; transition: all 0.3s; background: rgba(255,255,255,0.03); }
.btn-ghost:hover { border-color: var(--neon); color: var(--neon); background: rgba(0,229,255,0.06); }
.hero-stats { display: flex; gap: 48px; margin-top: 56px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat strong { display: block; font-size: 2rem; font-weight: 800; color: #fff; }
.hero-stat strong::after { content: ''; display: block; width: 30px; height: 2px; background: var(--neon); margin: 6px auto 0; border-radius: 2px; }
.hero-stat span { font-size: 0.9rem; color: var(--text-secondary); }

.section { padding: 96px 0; }
.section-head { text-align: center; max-width: 700px; margin: 0 auto 52px; }
.section-tag { display: inline-block; padding: 4px 14px; border-radius: 30px; background: rgba(168,85,247,0.12); border: 1px solid rgba(168,85,247,0.25); color: #c084fc; font-size: 0.8rem; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; }
.section-title { font-size: 2.2rem; font-weight: 800; margin-top: 14px; color: #fff; }
.section-sub { font-size: 1rem; color: var(--text-secondary); margin-top: 12px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px 32px; transition: all 0.4s; position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--neon), var(--purple)); opacity: 0; transition: opacity 0.4s; }
.feature-card:hover { transform: translateY(-6px); border-color: var(--border-neon); box-shadow: var(--shadow-card), var(--shadow-neon); }
.feature-card:hover::before { opacity: 1; }
.feature-icon { width: 60px; height: 60px; border-radius: 18px; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; margin-bottom: 22px; background: linear-gradient(135deg, rgba(0,229,255,0.18), rgba(168,85,247,0.18)); border: 1px solid var(--border-neon); color: var(--neon); }
.feature-card h3 { font-size: 1.2rem; font-weight: 700; color: #fff; }
.feature-card p { font-size: 0.92rem; color: var(--text-secondary); margin-top: 10px; line-height: 1.75; }

.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.category-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all 0.4s; position: relative; display: flex; flex-direction: column; }
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); border-color: var(--border-neon); }
.category-cover { position: relative; height: 220px; overflow: hidden; }
.category-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.category-card:hover .category-cover img { transform: scale(1.05); }
.category-cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(6,11,22,0.8), transparent 70%); }
.category-body { padding: 28px 28px 32px; }
.category-body h3 { font-size: 1.3rem; font-weight: 700; color: #fff; }
.category-body p { font-size: 0.92rem; color: var(--text-secondary); margin-top: 8px; }
.category-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; font-size: 0.92rem; font-weight: 600; color: var(--neon); }
.category-link:hover { color: #fff; }

.news-section { background: linear-gradient(180deg, transparent, rgba(13,20,36,0.5), transparent); }
.news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 26px; transition: all 0.3s; }
.news-item:hover { border-color: var(--border-neon); box-shadow: var(--shadow-card); transform: translateY(-3px); }
.news-item .news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; font-size: 0.8rem; color: var(--text-muted); }
.news-item .news-meta .badge { padding: 3px 10px; border-radius: 20px; background: rgba(0,229,255,0.1); border: 1px solid var(--border-neon); color: var(--neon); font-weight: 600; font-size: 0.75rem; }
.news-item h3 { font-size: 1.05rem; font-weight: 700; color: #fff; line-height: 1.5; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-item p { font-size: 0.9rem; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-empty { grid-column: 1 / -1; text-align: center; padding: 40px; color: var(--text-muted); font-size: 1rem; background: var(--bg-card); border: 1px dashed var(--border); border-radius: var(--radius-lg); }

.stats-wrap { background: linear-gradient(135deg, rgba(0,229,255,0.05), rgba(168,85,247,0.06)); border-radius: var(--radius-lg); border: 1px solid var(--border); padding: 60px 40px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-number { font-size: 2.6rem; font-weight: 800; color: #fff; background: linear-gradient(90deg, var(--neon), #c084fc); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 0.92rem; color: var(--text-secondary); margin-top: 4px; }

.steps-wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; position: relative; }
.step-item { position: relative; padding: 32px 28px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); transition: all 0.3s; }
.step-item:hover { border-color: var(--border-neon); box-shadow: var(--shadow-card); }
.step-num { width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--neon), #06b6d4); color: #03121a; font-weight: 800; font-size: 1.1rem; margin-bottom: 16px; box-shadow: 0 0 20px rgba(0,229,255,0.3); }
.step-item h3 { font-size: 1.1rem; font-weight: 700; color: #fff; }
.step-item p { font-size: 0.9rem; color: var(--text-secondary); margin-top: 8px; }

.faq-list { max-width: 850px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; transition: all 0.3s; }
.faq-item:hover { border-color: var(--border-neon); }
.faq-q { padding: 22px 28px; display: flex; justify-content: space-between; align-items: center; font-size: 1.05rem; font-weight: 600; color: #fff; cursor: pointer; user-select: none; }
.faq-q i { color: var(--neon); transition: transform 0.3s; font-size: 0.95rem; }
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-a-inner { padding: 0 28px 24px; color: var(--text-secondary); font-size: 0.95rem; line-height: 1.8; }
.faq-item.open .faq-a { max-height: 300px; }

.cta-section { position: relative; padding: 100px 0; }
.cta-box { background: linear-gradient(135deg, rgba(0,229,255,0.08), rgba(168,85,247,0.08)), var(--bg-card); border: 1px solid var(--border-neon); border-radius: 28px; padding: 70px 60px; text-align: center; position: relative; overflow: hidden; }
.cta-box::before { content: ''; position: absolute; top: -80px; right: -80px; width: 220px; height: 220px; background: rgba(0,229,255,0.08); border-radius: 50%; filter: blur(60px); }
.cta-box::after { content: ''; position: absolute; bottom: -80px; left: -80px; width: 220px; height: 220px; background: rgba(168,85,247,0.08); border-radius: 50%; filter: blur(60px); }
.cta-title { font-size: 2rem; font-weight: 800; color: #fff; position: relative; z-index: 2; }
.cta-sub { color: var(--text-secondary); margin-top: 12px; font-size: 1.05rem; position: relative; z-index: 2; }
.cta-actions { margin-top: 30px; position: relative; z-index: 2; display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.site-footer { background: #040812; border-top: 1px solid var(--border); padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; }
.footer-brand p { font-size: 0.9rem; color: var(--text-muted); margin-top: 14px; max-width: 320px; }
.footer-col h4 { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: 1px; }
.footer-col a { display: block; font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 10px; }
.footer-col a:hover { color: var(--neon); padding-left: 4px; }
.footer-bottom { border-top: 1px solid var(--border); margin-top: 50px; padding-top: 20px; text-align: center; font-size: 0.82rem; color: var(--text-muted); }

.faq-cta-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px 30px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; margin-top: 36px; gap: 16px; }
.faq-cta-box p { font-size: 0.95rem; color: var(--text-secondary); }
.faq-cta-box a { color: var(--neon); font-weight: 600; white-space: nowrap; }

@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .news-list { grid-template-columns: 1fr; }
  .stats-wrap { grid-template-columns: repeat(2, 1fr); }
  .steps-wrap { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .menu-toggle { display: block; }
  .section { padding: 64px 0; }
  .hero { min-height: 440px; padding: 60px 0; }
  .hero-title { font-size: 2.1rem; }
  .hero-stats { gap: 28px; }
  .category-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 40px 24px; }
  .cta-title { font-size: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps-wrap { grid-template-columns: 1fr; }
  .stats-wrap { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .btn-neon, .btn-ghost { width: 100%; justify-content: center; }
  .hero-title { font-size: 1.7rem; }
  .section-title { font-size: 1.6rem; }
}
/* mobile nav */
.mobile-nav { display: none; position: fixed; top: 72px; left: 0; right: 0; background: rgba(6,11,22,0.98); border-bottom: 1px solid var(--border-neon); padding: 16px 24px 24px; z-index: 99; }
.mobile-nav.open { display: block; }
.mobile-nav a { display: block; padding: 12px 8px; color: var(--text-secondary); font-size: 1rem; border-bottom: 1px solid rgba(148,163,184,0.08); }
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a.active { color: var(--neon); font-weight: 600; }

/* roulang page: article */
:root {
  --bg-primary: #080c14;
  --bg-card: #101827;
  --bg-surface: #151f31;
  --primary: #00e5ff;
  --primary-dim: rgba(0, 229, 255, .12);
  --accent: #ff2d78;
  --accent-dim: rgba(255, 45, 120, .14);
  --purple: #a855f7;
  --text-primary: #e5e9f0;
  --text-secondary: #a6b0c3;
  --text-muted: #6b7688;
  --border-color: rgba(255,255,255,.08);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-card: 0 10px 40px rgba(0,0,0,.45);
  --shadow-glow: 0 0 24px rgba(0,229,255,.12);
  --container-w: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; border: none; outline: none; background: none; }
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 768px) { .container { padding: 0 18px; } }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 12, 20, .88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-color);
  transition: box-shadow .3s ease;
}
.site-header.is-scrolled { box-shadow: 0 8px 32px rgba(0,0,0,.4); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 20px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -.02em;
  white-space: nowrap;
}
.logo i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  color: #080c14;
  font-size: 1rem;
  box-shadow: 0 4px 16px rgba(0,229,255,.3);
}
.logo span { color: var(--primary); }
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border-radius: 10px;
  font-size: .95rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all .25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
  box-shadow: 0 0 12px rgba(0,229,255,.5);
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,.04); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link.active {
  color: #fff;
  background: var(--primary-dim);
  text-shadow: 0 0 18px rgba(0,229,255,.4);
}
.header-actions { display: flex; align-items: center; gap: 10px; }
.btn-header {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  font-size: .9rem;
  font-weight: 700;
  color: #080c14;
  background: linear-gradient(135deg, var(--primary), #22d3ee);
  box-shadow: 0 4px 18px rgba(0,229,255,.25);
  transition: all .25s ease;
}
.btn-header:hover { transform: translateY(-2px); box-shadow: 0 8px 26px rgba(0,229,255,.38); }
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 1.15rem;
  background: rgba(255,255,255,.06);
  transition: background .25s;
  cursor: pointer;
}
.mobile-toggle:hover { background: rgba(255,255,255,.12); }
.mobile-menu {
  display: none;
  padding: 10px 18px 18px;
  gap: 4px;
  border-top: 1px solid transparent;
}
.mobile-menu.open {
  display: flex;
  flex-direction: column;
  border-top-color: var(--border-color);
  animation: fadeInDown .3s ease;
}
.mobile-link {
  padding: 13px 16px;
  border-radius: 10px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all .2s;
}
.mobile-link:hover, .mobile-link.active { color: var(--primary); background: var(--primary-dim); }
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 900px) {
  .main-nav, .btn-header { display: none; }
  .mobile-toggle { display: inline-flex; align-items: center; justify-content: center; }
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 72px 0 64px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,12,20,.82) 0%, rgba(8,12,20,.6) 45%, #080c14 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: .85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--primary); transition: opacity .2s; }
.breadcrumb a:hover { opacity: .75; }
.breadcrumb .sep { opacity: .5; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--primary);
  background: var(--primary-dim);
  border: 1px solid rgba(0,229,255,.25);
  box-shadow: 0 0 18px rgba(0,229,255,.08);
}
.article-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  font-weight: 800;
  line-height: 1.35;
  color: #fff;
  margin: 20px 0 18px;
  letter-spacing: -.02em;
  text-shadow: 0 4px 24px rgba(0,0,0,.5);
}
.meta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
  font-size: .88rem;
  color: var(--text-secondary);
}
.meta-row span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.meta-row i { color: var(--primary); opacity: .8; }

/* ===== Article Body ===== */
.article-section { padding: 0 0 60px; }
.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 42px 46px;
  box-shadow: var(--shadow-card);
  max-width: 900px;
  margin: 0 auto;
}
.article-body { font-size: 1.03rem; line-height: 1.9; color: var(--text-primary); }
.article-body p { margin-bottom: 1.5rem; }
.article-body strong { color: #fff; font-weight: 700; }
.article-body h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: #fff;
  margin: 2.4rem 0 1.2rem;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  line-height: 1.4;
}
.article-body h3 {
  font-size: 1.22rem;
  font-weight: 700;
  color: #fff;
  margin: 2rem 0 1rem;
}
.article-body ul, .article-body ol {
  margin-bottom: 1.5rem;
  padding-left: 1.4rem;
}
.article-body li { margin-bottom: .55rem; }
.article-body ul li::marker { color: var(--primary); }
.article-body blockquote {
  border-left: 3px solid var(--primary);
  background: var(--primary-dim);
  padding: 1rem 1.5rem;
  border-radius: 0 12px 12px 0;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body img { border-radius: 16px; margin: 2rem auto; box-shadow: var(--shadow-card); }
.article-body hr { border: none; border-top: 1px solid var(--border-color); margin: 2rem 0; }
.article-body code {
  background: rgba(0,229,255,.1);
  color: var(--primary);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: .9em;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 28px;
  margin-top: 34px;
  border-top: 1px solid var(--border-color);
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border-color);
  transition: all .2s ease;
}
.tag:hover {
  color: var(--primary);
  border-color: rgba(0,229,255,.4);
  background: var(--primary-dim);
}
@media (max-width: 768px) {
  .article-card { padding: 28px 22px; border-radius: 18px; }
}

/* ===== Not Found ===== */
.not-found-section { padding: 60px 0 80px; }
.not-found-card {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  box-shadow: var(--shadow-card);
}
.not-found-card i {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 20px;
  opacity: .8;
}
.not-found-card h2 { font-size: 1.6rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.not-found-card p { color: var(--text-secondary); margin-bottom: 28px; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 28px;
  border-radius: 12px;
  font-weight: 700;
  color: #080c14;
  background: linear-gradient(135deg, var(--primary), #22d3ee);
  box-shadow: 0 4px 20px rgba(0,229,255,.25);
  transition: all .25s ease;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,229,255,.4); }

/* ===== Related ===== */
.related-section { padding: 60px 0 80px; border-top: 1px solid var(--border-color); }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: -.02em;
}
.section-head p { color: var(--text-muted); font-size: .98rem; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all .3s ease;
}
.related-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,229,255,.3);
  box-shadow: 0 16px 40px rgba(0,0,0,.4), 0 0 24px rgba(0,229,255,.06);
}
.related-cover { aspect-ratio: 16 / 10; overflow: hidden; position: relative; }
.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.related-card:hover .related-cover img { transform: scale(1.06); }
.related-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(8,12,20,.5));
}
.related-info { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.badge-sm {
  display: inline-flex;
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-dim);
  border: 1px solid rgba(0,229,255,.18);
  margin-bottom: 10px;
}
.related-info h3 {
  font-size: .98rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.55;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-info p {
  font-size: .82rem;
  color: var(--text-muted);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.related-date { font-size: .78rem; color: var(--text-muted); display: inline-flex; align-items: center; gap: 6px; }
.related-date i { font-size: .72rem; }
@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .related-grid { grid-template-columns: 1fr; }
}

/* ===== FAQ ===== */
.faq-section { padding: 70px 0; background: rgba(255,255,255,.02); border-top: 1px solid var(--border-color); }
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  transition: all .3s ease;
}
.faq-item:hover {
  border-color: rgba(0,229,255,.25);
  box-shadow: 0 8px 30px rgba(0,0,0,.3);
}
.faq-item h3 {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.5;
}
.faq-item h3 i {
  color: var(--primary);
  font-size: .9rem;
  margin-top: 4px;
  flex-shrink: 0;
}
.faq-item p { font-size: .9rem; color: var(--text-secondary); line-height: 1.8; padding-left: 28px; }
@media (max-width: 768px) {
  .faq-grid { grid-template-columns: 1fr; }
}

/* ===== CTA ===== */
.cta-section { padding: 70px 0 80px; position: relative; overflow: hidden; }
.cta-card {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  background: linear-gradient(135deg, rgba(0,229,255,.1), rgba(168,85,247,.12)), var(--bg-card);
  border: 1px solid rgba(0,229,255,.2);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,229,255,.15), transparent 70%);
  pointer-events: none;
}
.cta-card::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168,85,247,.12), transparent 70%);
  pointer-events: none;
}
.cta-card h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.cta-card p {
  color: var(--text-secondary);
  font-size: 1rem;
  position: relative;
  z-index: 1;
}
.cta-actions { display: flex; justify-content: center; gap: 16px; margin-top: 30px; flex-wrap: wrap; position: relative; z-index: 1; }
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 14px;
  font-size: .98rem;
  font-weight: 800;
  color: #080c14;
  background: linear-gradient(135deg, var(--primary), #22d3ee);
  box-shadow: 0 6px 24px rgba(0,229,255,.3);
  transition: all .25s ease;
}
.btn-cta:hover { transform: translateY(-3px); box-shadow: 0 10px 34px rgba(0,229,255,.45); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 14px;
  font-size: .95rem;
  font-weight: 700;
  color: var(--primary);
  background: transparent;
  border: 1.5px solid rgba(0,229,255,.4);
  transition: all .25s ease;
}
.btn-ghost:hover {
  background: var(--primary-dim);
  border-color: var(--primary);
  box-shadow: 0 0 24px rgba(0,229,255,.15);
}
@media (max-width: 768px) {
  .cta-card { padding: 40px 24px; }
}

/* ===== Footer ===== */
.site-footer {
  background: #060a11;
  border-top: 1px solid var(--border-color);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: .88rem; color: var(--text-muted); line-height: 1.8; max-width: 300px; }
.footer-col h4 {
  font-size: .92rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: .03em;
}
.footer-col a {
  display: block;
  font-size: .88rem;
  color: var(--text-secondary);
  padding: 6px 0;
  transition: all .2s ease;
}
.footer-col a:hover { color: var(--primary); padding-left: 6px; }
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 22px 0;
  text-align: center;
  font-size: .82rem;
  color: var(--text-muted);
}
.footer-bottom p { margin: 0; }
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ===== Focus accessibility ===== */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #0b101a; }
::-webkit-scrollbar-thumb { background: #1e293b; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #334155; }

/* roulang page: category1 */
:root {
      --bg-night: #0a0e17;
      --bg-card: #111927;
      --bg-deep: #0d1322;
      --border-slate: #1e2a3d;
      --neon-indigo: #6366f1;
      --neon-cyan: #22d3ee;
      --neon-pink: #f472b6;
      --text-light: #e2e8f0;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --radius-sm: 8px;
      --radius: 12px;
      --radius-lg: 20px;
      --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
      --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.15);
    }

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

    html { scroll-behavior: smooth; }

    body {
      font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--bg-night);
      color: var(--text-light);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; }
    button { font-family: inherit; }
    ul, ol { list-style: none; }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    /* ==== Header ==== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(10, 14, 23, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(30, 42, 61, 0.8);
      height: 72px;
      transition: background 0.3s ease, box-shadow 0.3s ease;
    }

    .site-header.scrolled {
      background: rgba(10, 14, 23, 0.95);
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
    }

    .site-header::after {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--neon-indigo), var(--neon-cyan), var(--neon-pink));
      background-size: 200% 100%;
      animation: glowShift 6s ease-in-out infinite alternate;
    }

    @keyframes glowShift {
      0% { background-position: 0% 0; }
      100% { background-position: 100% 0; }
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 1.3rem;
      font-weight: 800;
      letter-spacing: 0.02em;
      color: #fff;
      transition: transform 0.3s ease;
    }

    .logo i {
      color: var(--neon-indigo);
      font-size: 1.5rem;
      filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.6));
    }

    .logo span {
      color: var(--neon-cyan);
      font-weight: 500;
      font-size: 1.1rem;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 0.35rem;
    }

    .nav-link {
      display: inline-block;
      padding: 0.5rem 1.25rem;
      border-radius: 999px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-muted);
      transition: all 0.3s ease;
      border: 1px solid transparent;
      position: relative;
    }

    .nav-link:hover {
      color: var(--text-light);
      background: rgba(99, 102, 241, 0.08);
      border-color: rgba(99, 102, 241, 0.2);
    }

    .nav-link.active {
      color: #fff;
      background: rgba(99, 102, 241, 0.15);
      border-color: rgba(99, 102, 241, 0.4);
      box-shadow: 0 0 20px rgba(99, 102, 241, 0.25), inset 0 0 10px rgba(99, 102, 241, 0.06);
    }

    .nav-toggle {
      display: none;
      background: transparent;
      border: 1px solid rgba(99, 102, 241, 0.3);
      border-radius: 8px;
      color: var(--text-light);
      font-size: 1.2rem;
      cursor: pointer;
      padding: 0.5rem 0.75rem;
      transition: all 0.3s ease;
    }

    .nav-toggle:hover {
      background: rgba(99, 102, 241, 0.15);
      border-color: var(--neon-indigo);
    }

    /* ==== Hero ==== */
    .cat-hero {
      position: relative;
      padding: 9rem 0 5rem;
      background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      min-height: 480px;
      display: flex;
      align-items: center;
      overflow: hidden;
    }

    .cat-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(10, 14, 23, 0.92) 0%, rgba(10, 14, 23, 0.75) 60%, rgba(13, 19, 34, 0.6) 100%);
    }

    .cat-hero::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 80px;
      background: linear-gradient(to top, var(--bg-night), transparent);
    }

    .cat-hero .container {
      position: relative;
      z-index: 2;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      padding: 0.35rem 1rem;
      background: rgba(99, 102, 241, 0.15);
      border: 1px solid rgba(99, 102, 241, 0.4);
      border-radius: 999px;
      color: #c7d2fe;
      font-size: 0.82rem;
      font-weight: 500;
      letter-spacing: 0.04em;
      margin-bottom: 1.25rem;
    }

    .cat-hero h1 {
      font-size: 3rem;
      font-weight: 800;
      line-height: 1.15;
      color: #fff;
      letter-spacing: 0.01em;
      margin-bottom: 1rem;
    }

    .cat-hero h1 .accent {
      background: linear-gradient(90deg, var(--neon-indigo), var(--neon-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .cat-hero p {
      font-size: 1.08rem;
      color: var(--text-muted);
      max-width: 620px;
      line-height: 1.8;
      margin-bottom: 2rem;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
    }

    /* ==== Buttons ==== */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 0.55rem;
      background: linear-gradient(135deg, #6366f1, #8b5cf6);
      color: #fff;
      border: none;
      padding: 0.75rem 2rem;
      border-radius: 999px;
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 30px rgba(99, 102, 241, 0.45);
    }

    .btn-primary:focus-visible {
      outline: 2px solid var(--neon-cyan);
      outline-offset: 3px;
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      gap: 0.55rem;
      background: transparent;
      color: var(--text-light);
      border: 1px solid rgba(148, 163, 184, 0.35);
      padding: 0.75rem 2rem;
      border-radius: 999px;
      font-size: 0.95rem;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .btn-secondary:hover {
      background: rgba(148, 163, 184, 0.08);
      border-color: rgba(148, 163, 184, 0.6);
      transform: translateY(-2px);
    }

    /* ==== Sections ==== */
    .section {
      padding: 5rem 0;
    }

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--neon-cyan);
      margin-bottom: 0.75rem;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: #fff;
      line-height: 1.3;
      margin-bottom: 0.75rem;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 640px;
      line-height: 1.7;
    }

    /* ==== Steps ==== */
    .steps-section {
      background: var(--bg-deep);
      border-top: 1px solid var(--border-slate);
      border-bottom: 1px solid var(--border-slate);
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      margin-top: 3rem;
    }

    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--border-slate);
      border-radius: var(--radius);
      padding: 1.75rem;
      position: relative;
      transition: all 0.35s ease;
      overflow: hidden;
    }

    .step-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--neon-indigo), var(--neon-cyan));
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .step-card:hover {
      transform: translateY(-6px);
      border-color: rgba(99, 102, 241, 0.4);
      box-shadow: var(--shadow-card), var(--shadow-glow);
    }

    .step-card:hover::before {
      opacity: 1;
    }

    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(34, 211, 238, 0.1));
      border: 1px solid rgba(99, 102, 241, 0.3);
      color: var(--neon-indigo);
      font-weight: 700;
      font-size: 0.95rem;
      margin-bottom: 1rem;
    }

    .step-icon {
      position: absolute;
      top: 1.5rem;
      right: 1.5rem;
      font-size: 1.6rem;
      color: rgba(148, 163, 184, 0.2);
      transition: color 0.3s ease, transform 0.3s ease;
    }

    .step-card:hover .step-icon {
      color: rgba(99, 102, 241, 0.5);
      transform: scale(1.1) rotate(-8deg);
    }

    .step-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.5rem;
    }

    .step-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* ==== Features ==== */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
      margin-top: 3rem;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-slate);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all 0.35s ease;
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-8px);
      border-color: rgba(99, 102, 241, 0.45);
      box-shadow: var(--shadow-card), var(--shadow-glow);
    }

    .feature-media {
      position: relative;
      height: 180px;
      overflow: hidden;
    }

    .feature-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .feature-card:hover .feature-media img {
      transform: scale(1.05);
    }

    .feature-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(to bottom, transparent 50%, rgba(10, 14, 23, 0.8));
    }

    .feature-tag {
      position: absolute;
      top: 1rem;
      left: 1rem;
      z-index: 2;
      padding: 0.3rem 0.9rem;
      background: rgba(10, 14, 23, 0.75);
      border: 1px solid rgba(99, 102, 241, 0.4);
      border-radius: 999px;
      font-size: 0.75rem;
      font-weight: 600;
      color: #c7d2fe;
      backdrop-filter: blur(6px);
    }

    .feature-body {
      padding: 1.5rem;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .feature-body h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.6rem;
    }

    .feature-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 1.25rem;
      flex: 1;
    }

    .feature-list {
      border-top: 1px solid var(--border-slate);
      padding-top: 1rem;
    }

    .feature-list li {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.85rem;
      color: var(--text-muted);
      padding: 0.3rem 0;
    }

    .feature-list li i {
      color: var(--neon-cyan);
      font-size: 0.7rem;
    }

    /* ==== Tips ==== */
    .tips-section {
      background: var(--bg-deep);
      border-top: 1px solid var(--border-slate);
      border-bottom: 1px solid var(--border-slate);
    }

    .tips-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      margin-top: 3rem;
      align-items: center;
    }

    .tips-side {
      position: relative;
    }

    .tips-side img {
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-slate);
      box-shadow: var(--shadow-card);
    }

    .tips-side::after {
      content: "";
      position: absolute;
      inset: 1rem -1rem -1rem 1rem;
      border: 1px solid rgba(99, 102, 241, 0.2);
      border-radius: var(--radius-lg);
      z-index: -1;
    }

    .tips-list {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .tip-item {
      display: flex;
      gap: 1.1rem;
      background: var(--bg-card);
      border: 1px solid var(--border-slate);
      border-radius: var(--radius);
      padding: 1.1rem 1.25rem;
      transition: all 0.3s ease;
    }

    .tip-item:hover {
      border-color: rgba(99, 102, 241, 0.4);
      box-shadow: var(--shadow-card);
      transform: translateX(6px);
    }

    .tip-icon {
      flex-shrink: 0;
      width: 42px;
      height: 42px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      background: rgba(99, 102, 241, 0.1);
      border: 1px solid rgba(99, 102, 241, 0.25);
      color: var(--neon-indigo);
      font-size: 1rem;
    }

    .tip-item:nth-child(2) .tip-icon { color: var(--neon-cyan); border-color: rgba(34, 211, 238, 0.25); background: rgba(34, 211, 238, 0.08); }
    .tip-item:nth-child(3) .tip-icon { color: var(--neon-pink); border-color: rgba(244, 114, 182, 0.25); background: rgba(244, 114, 182, 0.08); }

    .tip-item h4 {
      font-size: 0.95rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 0.25rem;
    }

    .tip-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ==== Stats ==== */
    .stats-section {
      position: relative;
      padding: 4.5rem 0;
      background: url('/assets/images/backpic/back-2.png') center/cover no-repeat fixed;
      overflow: hidden;
    }

    .stats-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(10, 14, 23, 0.88);
    }

    .stats-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }

    .stat-item {
      text-align: center;
      padding: 2.5rem 1.5rem;
      background: rgba(17, 25, 39, 0.8);
      border: 1px solid rgba(99, 102, 241, 0.2);
      border-radius: var(--radius);
      backdrop-filter: blur(8px);
      transition: all 0.3s ease;
    }

    .stat-item:hover {
      border-color: rgba(99, 102, 241, 0.5);
      box-shadow: var(--shadow-glow);
      transform: translateY(-4px);
    }

    .stat-value {
      font-size: 2.5rem;
      font-weight: 800;
      color: #fff;
      line-height: 1;
      margin-bottom: 0.5rem;
    }

    .stat-value .unit {
      font-size: 1.2rem;
      color: var(--neon-cyan);
      margin-left: 0.2rem;
    }

    .stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      letter-spacing: 0.04em;
    }

    /* ==== FAQ ==== */
    .faq-container {
      max-width: 780px;
      margin: 2.5rem auto 0;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-slate);
      border-radius: var(--radius);
      margin-bottom: 0.85rem;
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .faq-item.open {
      border-color: rgba(99, 102, 241, 0.4);
      box-shadow: var(--shadow-glow);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      background: transparent;
      border: none;
      padding: 1.1rem 1.4rem;
      color: var(--text-light);
      font-size: 0.95rem;
      font-weight: 600;
      text-align: left;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .faq-question:hover,
    .faq-question:focus-visible {
      color: #fff;
      outline: none;
      background: rgba(99, 102, 241, 0.04);
    }

    .faq-question .icon {
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 1px solid var(--border-slate);
      font-size: 0.75rem;
      color: var(--neon-cyan);
      transition: all 0.3s ease;
    }

    .faq-item.open .faq-question .icon {
      transform: rotate(45deg);
      background: rgba(99, 102, 241, 0.15);
      border-color: var(--neon-indigo);
      color: #fff;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s ease;
      padding: 0 1.4rem;
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.8;
    }

    .faq-item.open .faq-answer {
      max-height: 300px;
      padding-bottom: 1.25rem;
    }

    /* ==== CTA ==== */
    .cta-section {
      position: relative;
      padding: 4.5rem 0;
      background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
      overflow: hidden;
      text-align: center;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(10, 14, 23, 0.92), rgba(17, 25, 39, 0.8));
    }

    .cta-inner {
      position: relative;
      z-index: 1;
      max-width: 680px;
      margin: 0 auto;
    }

    .cta-inner h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 1rem;
    }

    .cta-inner h2 .accent {
      background: linear-gradient(90deg, var(--neon-indigo), var(--neon-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .cta-inner p {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 2rem;
    }

    .cta-actions {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 1rem;
    }

    /* ==== Footer ==== */
    .site-footer {
      background: #070b12;
      border-top: 1px solid var(--border-slate);
      padding: 3.5rem 0 1.5rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 2.5rem;
      margin-bottom: 2.5rem;
    }

    .footer-brand .logo {
      margin-bottom: 1rem;
    }

    .footer-brand p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 320px;
    }

    .footer-col h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 1rem;
      position: relative;
      padding-bottom: 0.6rem;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 32px;
      height: 2px;
      background: linear-gradient(90deg, var(--neon-indigo), var(--neon-cyan));
    }

    .footer-col a {
      display: block;
      font-size: 0.88rem;
      color: var(--text-muted);
      padding: 0.35rem 0;
      transition: all 0.25s ease;
    }

    .footer-col a:hover {
      color: var(--neon-cyan);
      transform: translateX(4px);
    }

    .footer-bottom {
      border-top: 1px solid var(--border-slate);
      padding-top: 1.5rem;
      text-align: center;
    }

    .footer-bottom p {
      font-size: 0.82rem;
      color: var(--text-dim);
    }

    /* ==== Responsive ==== */
    @media (max-width: 1024px) {
      .steps-grid { grid-template-columns: repeat(2, 1fr); }
      .features-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
      .stats-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .section { padding: 3.5rem 0; }
      .cat-hero { padding: 7rem 0 3.5rem; min-height: 400px; }
      .cat-hero h1 { font-size: 2.1rem; }
      .cat-hero p { font-size: 0.95rem; }
      .section-title { font-size: 1.65rem; }
      .tips-layout { grid-template-columns: 1fr; gap: 2rem; }
      .features-grid { grid-template-columns: 1fr; }
      .logo { font-size: 1.1rem; }
      .logo span { font-size: 0.95rem; }
      .header-inner { gap: 1rem; }

      .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 23, 0.97);
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem 1.5rem 1.25rem;
        border-bottom: 1px solid var(--border-slate);
        transform: translateY(-120%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.35s ease;
        backdrop-filter: blur(16px);
      }

      .main-nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
      }

      .nav-link {
        width: 100%;
        padding: 0.7rem 1rem;
        border-radius: 10px;
      }

      .nav-toggle {
        display: block;
      }
    }

    @media (max-width: 520px) {
      .steps-grid { grid-template-columns: 1fr; }
      .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.85rem; }
      .stat-item { padding: 1.75rem 1rem; }
      .stat-value { font-size: 1.8rem; }
      .footer-grid { grid-template-columns: 1fr; }
      .hero-actions { flex-direction: column; }
      .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
      .cta-actions { flex-direction: column; }
      .cta-actions .btn-primary, .cta-actions .btn-secondary { width: 100%; justify-content: center; }
      .faq-question { font-size: 0.88rem; padding: 1rem 1.1rem; }
      .faq-answer { padding: 0 1.1rem; font-size: 0.85rem; }
      .tip-item { flex-direction: column; gap: 0.7rem; }
    }

/* roulang page: category2 */
:root {
    --primary: #00e5ff;
    --accent: #ff3d8b;
    --bg: #0a0f1c;
    --bg2: #0f1629;
    --card: #131b2e;
    --text: #e8eefc;
    --muted: #8b98b8;
    --border: rgba(255,255,255,0.09);
    --radius: 16px;
    --shadow: 0 20px 60px rgba(0,0,0,0.45);
    --neon-glow: 0 0 18px rgba(0,229,255,0.55), 0 0 42px rgba(0,229,255,0.18);
  }
  * { margin:0; padding:0; box-sizing:border-box; }
  html { scroll-behavior:smooth; }
  body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }
  img { display:block; max-width:100%; }
  a { color:inherit; text-decoration:none; transition: all 0.3s ease; }
  a:focus-visible, button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
    border-radius: 6px;
  }
  .container { width:100%; max-width:1280px; margin:0 auto; padding:0 24px; }
  
  /* ===== Header / Nav ===== */
  .site-header {
    background: rgba(10,15,28,0.88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
    gap: 24px;
  }
  .logo {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
  }
  .logo i {
    color: var(--primary);
    text-shadow: var(--neon-glow);
    font-size: 1.25rem;
  }
  .logo span { color: var(--primary); }
  .main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .nav-link {
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--muted);
    position: relative;
    transition: all 0.3s ease;
    white-space: nowrap;
  }
  .nav-link:hover {
    color: #fff;
    background: rgba(0,229,255,0.08);
  }
  .nav-link.active {
    color: var(--primary);
    background: rgba(0,229,255,0.10);
    box-shadow: inset 0 0 0 1px rgba(0,229,255,0.2);
  }
  .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 20px;
    right: 20px;
    height: 2px;
    background: var(--primary);
    box-shadow: var(--neon-glow);
    border-radius: 2px;
  }
  .nav-cta {
    background: linear-gradient(135deg, var(--primary), #00b8d4);
    color: #07101f;
    padding: 10px 22px;
    border-radius: 10px;
    font-weight: 800;
    font-size: 0.9rem;
    margin-left: 10px;
    box-shadow: 0 4px 18px rgba(0,229,255,0.25);
    transition: all 0.3s ease;
  }
  .nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0,229,255,0.4);
    color: #07101f;
  }
  .mobile-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    width: 42px;
    height: 42px;
    border-radius: 10px;
    font-size: 1.1rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
  }
  
  /* ===== Hero Banner ===== */
  .category-hero {
    position: relative;
    padding: 120px 0 100px;
    background: linear-gradient(135deg, rgba(10,15,28,0.92), rgba(15,22,41,0.78)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    border-bottom: 1px solid var(--border);
    overflow: hidden;
  }
  .category-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,229,255,0.14), transparent 65%);
    pointer-events: none;
  }
  .category-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,61,139,0.08), transparent 60%);
    pointer-events: none;
  }
  .category-hero .container { position: relative; z-index: 2; }
  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 28px;
  }
  .breadcrumb a:hover { color: var(--primary); }
  .breadcrumb i { font-size: 0.7rem; color: var(--primary); }
  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,229,255,0.1);
    border: 1px solid rgba(0,229,255,0.3);
    color: var(--primary);
    padding: 7px 16px;
    border-radius: 40px;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 22px;
  }
  .hero-badge i { font-size: 0.75rem; }
  .category-hero h1 {
    font-size: 3.1rem;
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: 1px;
    margin-bottom: 20px;
  }
  .category-hero h1 em {
    font-style: normal;
    color: var(--primary);
    text-shadow: var(--neon-glow);
  }
  .category-hero p {
    font-size: 1.1rem;
    color: var(--muted);
    max-width: 680px;
    line-height: 1.8;
    margin-bottom: 36px;
  }
  .hero-meta {
    display: flex;
    align-items: center;
    gap: 28px;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--muted);
    margin-bottom: 38px;
  }
  .hero-meta .item { display: flex; align-items: center; gap: 8px; }
  .hero-meta .item i { color: var(--primary); font-size: 0.85rem; }
  .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--primary), #00b8d4);
    color: #07101f;
    padding: 14px 30px;
    border-radius: 12px;
    font-weight: 800;
    font-size: 0.95rem;
    box-shadow: 0 8px 28px rgba(0,229,255,0.25);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
  }
  .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 36px rgba(0,229,255,0.38);
    color: #07101f;
  }
  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 14px 30px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    cursor: pointer;
  }
  .btn-ghost:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0,229,255,0.06);
  }
  
  /* ===== Sections ===== */
  .section-padding { padding: 96px 0; }
  .section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 60px;
  }
  .section-tag {
    display: inline-block;
    background: rgba(0,229,255,0.1);
    border: 1px solid rgba(0,229,255,0.25);
    color: var(--primary);
    padding: 5px 16px;
    border-radius: 40px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 16px;
  }
  .section-header h2 {
    font-size: 2.4rem;
    font-weight: 900;
    line-height: 1.25;
    margin-bottom: 16px;
  }
  .section-header p {
    color: var(--muted);
    font-size: 1.02rem;
    line-height: 1.8;
  }
  
  /* ===== Score Overview ===== */
 .score-panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 50px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
  }
  .score-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
    background-size: 200% 100%;
    animation: gradientMove 6s ease infinite;
  }
  @keyframes gradientMove {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
  }
  .score-grid {
    display: grid;
    grid-template-columns: 1.1fr 1.6fr;
    gap: 44px;
    align-items: center;
  }
  .score-number {
    text-align: center;
    padding: 20px 10px;
  }
  .score-big {
    font-size: 6rem;
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, var(--primary), #77f0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 24px rgba(0,229,255,0.3));
  }
  .score-label {
    font-size: 1.1rem;
    color: var(--text);
    font-weight: 700;
    margin-top: 8px;
  }
  .score-desc {
    color: var(--muted);
    font-size: 0.9rem;
    margin-top: 6px;
  }
  .score-stars {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 18px;
    color: var(--primary);
    font-size: 1.3rem;
  }
  .score-details { display: flex; flex-direction: column; gap: 24px; }
  .score-item { display: flex; flex-direction: column; gap: 8px; }
  .score-item-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
    font-weight: 600;
  }
  .score-item-top span:last-child { color: var(--primary); font-weight: 800; }
  .score-bar {
    height: 8px;
    background: rgba(255,255,255,0.07);
    border-radius: 40px;
    overflow: hidden;
  }
  .score-bar-fill {
    height: 100%;
    border-radius: 40px;
    background: linear-gradient(90deg, var(--primary), #77f0ff);
    box-shadow: 0 0 12px rgba(0,229,255,0.4);
    animation: growBar 1.2s ease;
  }
  @keyframes growBar {
    from { width: 0; }
  }
  
  /* ===== Review Cards ===== */
  .cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
  }
  .review-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.3s ease;
    cursor: pointer;
  }
  .review-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
    border-color: rgba(0,229,255,0.3);
  }
  .review-card-img {
    position: relative;
    height: 200px;
    overflow: hidden;
  }
  .review-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
  }
  .review-card:hover .review-card-img img { transform: scale(1.06); }
  .review-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15,22,41,0.85), transparent 60%);
  }
  .card-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(10,15,28,0.85);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(0,229,255,0.3);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 30px;
    z-index: 2;
  }
  .card-tag.accent {
    color: var(--accent);
    border-color: rgba(255,61,139,0.4);
  }
  .card-body { padding: 24px; }
  .card-body h3 {
    font-size: 1.15rem;
    font-weight: 800;
    margin-bottom: 10px;
    line-height: 1.4;
  }
  .card-body h3 a:hover { color: var(--primary); }
  .card-body p {
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.7;
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border);
    padding-top: 16px;
    font-size: 0.82rem;
    color: var(--muted);
  }
  .card-meta i { color: var(--primary); margin-right: 4px; }
  .card-meta .read-btn {
    color: var(--primary);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.3s ease;
  }
  .card-meta .read-btn:hover { gap: 10px; }
  
  /* ===== Dimension Grid ===== */
  .dimension-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
  }
  .dimension-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 26px;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
  }
  .dimension-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0,229,255,0.35);
    background: rgba(0,229,255,0.04);
  }
  .dimension-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 18px;
    border-radius: 16px;
    background: rgba(0,229,255,0.1);
    border: 1px solid rgba(0,229,255,0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--primary);
  }
  .dimension-card h3 { font-size: 1rem; font-weight: 800; margin-bottom: 8px; }
  .dimension-card p { color: var(--muted); font-size: 0.85rem; line-height: 1.6; }
  .dimension-score {
    margin-top: 14px;
    display: inline-block;
    background: rgba(0,229,255,0.1);
    color: var(--primary);
    padding: 3px 14px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 800;
  }
  
  /* ===== Quote / User Feedback ===== */
  .quote-section {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 60px 50px;
    position: relative;
    overflow: hidden;
  }
  .quote-section::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 10rem;
    color: rgba(0,229,255,0.08);
    font-family: serif;
  }
  .quote-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
  .quote-item {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    position: relative;
  }
  .quote-item i.quote-icon {
    color: var(--primary);
    font-size: 1.2rem;
    opacity: 0.6;
    margin-bottom: 14px;
    display: block;
  }
  .quote-item p {
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 18px;
  }
  .quote-user {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.85rem;
    color: var(--muted);
  }
  .quote-user .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #fff;
    font-size: 0.8rem;
  }
  .quote-stars { color: var(--primary); font-size: 0.8rem; margin-left: auto; }
  
  /* ===== Timeline ===== */
  .timeline-wrap { max-width: 780px; margin: 0 auto; position: relative; padding-left: 40px; }
  .timeline-wrap::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), rgba(0,229,255,0.05));
  }
  .timeline-item { position: relative; padding-bottom: 40px; }
  .timeline-item:last-child { padding-bottom: 0; }
  .timeline-item::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--primary);
    box-shadow: 0 0 14px rgba(0,229,255,0.4);
  }
  .timeline-item h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 6px; }
  .timeline-item .time {
    color: var(--muted);
    font-size: 0.82rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .timeline-item .time i { color: var(--accent); }
  .timeline-item p { color: var(--muted); font-size: 0.92rem; line-height: 1.7; }
  
  /* ===== FAQ ===== */
  .faq-wrap { max-width: 860px; margin: 0 auto; }
  .faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color 0.3s ease;
  }
  .faq-item:hover { border-color: rgba(0,229,255,0.25); }
  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 26px;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    background: none;
    border: none;
    color: var(--text);
    width: 100%;
    text-align: left;
    gap: 16px;
    transition: background 0.3s ease;
  }
  .faq-question:hover { background: rgba(0,229,255,0.03); }
  .faq-question .wrap-icon {
    color: var(--primary);
    font-size: 0.85rem;
    flex-shrink: 0;
    transition: transform 0.3s ease;
  }
  .faq-item.open .wrap-icon { transform: rotate(45deg); }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 26px;
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.8;
  }
  .faq-item.open .faq-answer { max-height: 300px; padding-bottom: 24px; }
  
  /* ===== CTA ===== */
  .cta-block {
    background: linear-gradient(120deg, rgba(0,229,255,0.08), rgba(255,61,139,0.05)), var(--card);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 70px 50px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .cta-block::before {
    content: '';
    position: absolute;
    top: -80px;
    left: -80px;
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(0,229,255,0.12), transparent 70%);
  }
  .cta-block h2 {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 14px;
  }
  .cta-block p {
    color: var(--muted);
    max-width: 560px;
    margin: 0 auto 32px;
    font-size: 1rem;
    line-height: 1.8;
  }
  
  /* ===== Footer ===== */
  .site-footer {
    background: #060911;
    border-top: 1px solid var(--border);
    padding: 70px 0 30px;
    margin-top: 40px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
  }
  .footer-brand p {
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-top: 18px;
    max-width: 360px;
  }
  .footer-col h4 {
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--text);
    position: relative;
    padding-bottom: 12px;
  }
  .footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 28px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
    box-shadow: var(--neon-glow);
  }
  .footer-col a {
    display: block;
    color: var(--muted);
    font-size: 0.9rem;
    padding: 7px 0;
    transition: color 0.3s ease, transform 0.3s ease;
  }
  .footer-col a:hover {
    color: var(--primary);
    transform: translateX(4px);
  }
  .footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 26px;
    text-align: center;
    color: var(--muted);
    font-size: 0.85rem;
  }
  
  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .score-grid { grid-template-columns: 1fr; gap: 30px; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .dimension-grid { grid-template-columns: repeat(2, 1fr); }
    .quote-grid { grid-template-columns: 1fr; }  
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
    .category-hero h1 { font-size: 2.4rem; }
  }
  @media (max-width: 768px) {
    .header-inner { height: 64px; }
    .mobile-toggle { display: flex; }
    .main-nav {
      display: none;
      position: absolute;
      top: 64px;
      left: 0;
      right: 0;
      background: rgba(10,15,28,0.97);
      backdrop-filter: blur(20px);
      flex-direction: column;
      padding: 18px 24px;
      border-bottom: 1px solid var(--border);
      gap: 8px;
      box-shadow: 0 20px 50px rgba(0,0,0,0.6);
    }
    .main-nav.open { display: flex; }
    .nav-link { width: 100%; text-align: center; }
    .nav-cta { margin-left: 0; margin-top: 8px; width: 100%; justify-content: center; }
    .section-padding { padding: 64px 0; }
    .category-hero { padding: 80px 0 70px; }
    .category-hero h1 { font-size: 1.9rem; }
    .category-hero p { font-size: 1rem; }
    .cards-grid { grid-template-columns: 1fr; }
    .section-header h2 { font-size: 1.7rem; }
    .score-panel { padding: 30px 24px; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .cta-block { padding: 44px 26px; }
    .cta-block h2 { font-size: 1.6rem; }
    .faq-wrap { padding: 0; }
    .timeline-wrap { padding-left: 30px; }
  }
  @media (max-width: 520px) {
    .container { padding: 0 18px; }
    .grid-cols-2 { grid-template-columns: 1fr !important; }
    .dimension-grid { grid-template-columns: 1fr; }
    .hero-actions .btn-primary, .hero-actions .btn-ghost { width: 100%; justify-content: center; }
    .logo { font-size: 1.05rem; }
    .logo span { font-size: 0.95rem; }
    .footer-bottom { font-size: 0.78rem; }
    .category-hero h1 { letter-spacing: 0; }
    .hero-meta { gap: 14px; }
  }