/* roulang page: index */
:root {
  --bg-space: #0A0E1A;
  --bg-dark: #070A12;
  --bg-card: #111827;
  --bg-card-alt: #0D1420;
  --accent-teal: #22D3A6;
  --accent-orange: #F59E0B;
  --text-main: #F3F6FC;
  --text-sub: #9BA9BD;
  --text-weak: #5B6B82;
  --border-color: #1E293B;
  --radius-card: 16px;
  --radius-btn: 999px;
  --radius-input: 12px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, .45);
  --shadow-hover: 0 16px 40px rgba(0, 0, 0, .6);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-space);
  color: var(--text-main);
  font-family: 'system-ui', '-apple-system', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #0A0E1A; }
::-webkit-scrollbar-thumb { background: #1E293B; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #2d3b50; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 14, 26, .82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(30, 41, 59, .8);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 38px; height: 38px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(34, 211, 166, .35), rgba(10, 14, 26, .6) 70%);
  border: 1px solid rgba(34, 211, 166, .5);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.logo-icon i { color: var(--accent-teal); font-size: 16px; }
.logo-icon::after {
  content: ''; position: absolute; width: 6px; height: 6px;
  background: var(--accent-teal); border-radius: 50%;
  top: 4px; right: 3px; box-shadow: 0 0 8px var(--accent-teal);
  animation: twinkle 2s infinite alternate;
}
.logo-text { font-size: 1.35rem; font-weight: 700; letter-spacing: .5px; color: var(--text-main); }
.logo-text span { color: var(--accent-teal); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 16px; border-radius: 999px; font-size: .92rem; font-weight: 500;
  color: var(--text-sub); transition: all .25s; position: relative;
}
.main-nav a:hover { color: var(--text-main); background: rgba(255, 255, 255, .04); }
.main-nav a.active { color: var(--accent-teal); background: rgba(34, 211, 166, .08); }
.header-cta { flex-shrink: 0; }
.mobile-menu-btn { display: none; background: none; border: none; color: var(--text-main); font-size: 1.3rem; cursor: pointer; padding: 8px; }

/* Buttons */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--accent-teal); color: #06211b; font-weight: 600;
  border: none; border-radius: var(--radius-btn); padding: 12px 28px;
  font-size: .95rem; cursor: pointer; transition: all .25s;
  box-shadow: 0 4px 20px rgba(34, 211, 166, .25);
}
.btn-primary:hover { background: #4adeb4; transform: translateY(-1px) scale(1.02); box-shadow: 0 8px 30px rgba(34, 211, 166, .35); }
.btn-primary:active { transform: translateY(1px) scale(.99); }
.btn-primary:focus-visible, .btn-secondary:focus-visible, .btn-outline:focus-visible {
  outline: 2px solid var(--accent-teal); outline-offset: 2px;
}
.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: transparent; color: var(--accent-teal); font-weight: 600;
  border: 1px solid rgba(34, 211, 166, .5); border-radius: var(--radius-btn);
  padding: 12px 28px; font-size: .95rem; cursor: pointer; transition: all .25s;
}
.btn-secondary:hover { background: rgba(34, 211, 166, .1); border-color: var(--accent-teal); transform: translateY(-1px); }
.btn-secondary:active { transform: translateY(1px); }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: transparent; color: var(--text-sub); font-weight: 500;
  border: 1px solid var(--border-color); border-radius: var(--radius-btn);
  padding: 8px 20px; font-size: .88rem; cursor: pointer; transition: all .25s;
}
.btn-outline:hover { color: var(--accent-teal); border-color: rgba(34, 211, 166, .4); background: rgba(34, 211, 166, .05); }
.btn-sm { padding: 8px 20px; font-size: .85rem; }

/* Hero */
.hero { position: relative; min-height: 620px; display: flex; align-items: center; padding: 80px 0; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  background-image: url('/assets/images/backpic/back-1.png');
  transform: scale(1.05);
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(115deg, rgba(7, 10, 18, .92) 0%, rgba(7, 10, 18, .72) 45%, rgba(7, 10, 18, .35) 100%);
}
.star-dot {
  position: absolute; border-radius: 50%; background: #fff; opacity: .5;
  animation: floatStar 4s infinite alternate ease-in-out;
}
.star-dot.s1 { width: 3px; height: 3px; top: 15%; left: 10%; animation-delay: 0s; }
.star-dot.s2 { width: 2px; height: 2px; top: 35%; right: 20%; animation-delay: .8s; opacity: .35; }
.star-dot.s3 { width: 4px; height: 4px; top: 60%; left: 30%; animation-delay: 1.6s; opacity: .3; }
.star-dot.s4 { width: 2px; height: 2px; top: 25%; right: 45%; animation-delay: 2.2s; opacity: .4; }
@keyframes floatStar {
  0% { transform: translateY(0); opacity: .3; }
  100% { transform: translateY(-18px); opacity: .7; }
}
@keyframes twinkle {
  0% { opacity: .4; transform: scale(.8); }
  100% { opacity: 1; transform: scale(1.2); }
}
.hero-content { position: relative; z-index: 2; max-width: 680px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(245, 158, 11, .12); border: 1px solid rgba(245, 158, 11, .3);
  color: #fbbf24; font-size: .82rem; font-weight: 600;
  padding: 6px 16px; border-radius: 999px; margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700; line-height: 1.25; color: var(--text-main);
  margin-bottom: 20px; letter-spacing: .5px;
}
.hero h1 .highlight { color: var(--accent-teal); }
.hero p {
  font-size: 1.05rem; color: var(--text-sub); line-height: 1.8;
  margin-bottom: 32px; max-width: 560px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 32px; margin-top: 48px; padding-top: 32px;
  border-top: 1px solid rgba(30, 41, 59, .6);
}
.hero-stat .num { font-size: 1.6rem; font-weight: 700; color: var(--text-main); }
.hero-stat .num i { color: var(--accent-teal); font-size: 1.2rem; margin-right: 4px; }
.hero-stat .label { font-size: .82rem; color: var(--text-weak); margin-top: 2px; }

/* Section */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-dark); }
.section-head { margin-bottom: 48px; }
.section-head .section-tag {
  display: inline-block; font-size: .8rem; font-weight: 600;
  color: var(--accent-teal); text-transform: uppercase; letter-spacing: 2px;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(1.4rem, 2.2vw, 1.75rem); font-weight: 700;
  color: var(--text-main); line-height: 1.35; position: relative;
  padding-left: 18px;
}
.section-head h2::before {
  content: ''; position: absolute; left: 0; top: 8px; bottom: 8px;
  width: 4px; border-radius: 4px; background: var(--accent-teal);
  box-shadow: 0 0 10px rgba(34, 211, 166, .5);
}
.section-head p { color: var(--text-sub); margin-top: 12px; font-size: .95rem; max-width: 640px; }

/* Cards */
.adv-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-card); padding: 28px 24px;
  transition: all .3s ease; position: relative;
}
.adv-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-hover);
  border-color: rgba(34, 211, 166, .4);
}
.adv-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: rgba(34, 211, 166, .1); border: 1px solid rgba(34, 211, 166, .25);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; color: var(--accent-teal); margin-bottom: 20px;
}
.adv-card h3 { font-size: 1.15rem; font-weight: 600; color: var(--text-main); margin-bottom: 10px; }
.adv-card p { font-size: .9rem; color: var(--text-sub); line-height: 1.7; }

/* News */
.news-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-card); overflow: hidden;
  transition: all .3s ease; height: 100%;
  display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(34, 211, 166, .4); }
.news-img { width: 100%; height: 180px; object-fit: cover; transition: transform .4s; }
.news-card:hover .news-img { transform: scale(1.04); }
.news-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.news-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  background: rgba(245, 158, 11, .15); color: #fbbf24;
  font-size: .75rem; font-weight: 600; padding: 3px 12px;
  border-radius: 999px; border: 1px solid rgba(245, 158, 11, .25);
}
.news-meta time { font-size: .78rem; color: var(--text-weak); }
.news-body h3 { font-size: 1.05rem; font-weight: 600; color: var(--text-main); line-height: 1.45; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-body p { font-size: .87rem; color: var(--text-sub); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.read-more {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 14px; font-size: .85rem; font-weight: 600;
  color: var(--accent-teal); transition: gap .25s;
}
.news-card:hover .read-more { gap: 10px; }
.empty-state {
  text-align: center; padding: 60px 20px;
  color: var(--text-weak); font-size: 1rem;
  background: var(--bg-card); border: 1px dashed var(--border-color);
  border-radius: var(--radius-card);
}

/* Category compare */
.cat-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-card); padding: 32px 28px;
  position: relative; transition: all .3s ease; height: 100%;
  display: flex; flex-direction: column;
}
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(34, 211, 166, .4); }
.cat-card.featured { border-color: rgba(245, 158, 11, .35); box-shadow: 0 8px 30px rgba(245, 158, 11, .08); }
.cat-card.featured .cat-badge-hot {
  position: absolute; top: -12px; right: 24px;
  background: var(--accent-orange); color: #06211b;
  font-size: .72rem; font-weight: 700; padding: 3px 14px;
  border-radius: 999px; box-shadow: 0 2px 12px rgba(245, 158, 11, .3);
}
.cat-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; margin-bottom: 18px;
}
.cat-card:nth-child(1) .cat-icon { background: rgba(34, 211, 166, .1); border: 1px solid rgba(34, 211, 166, .25); color: var(--accent-teal); }
.cat-card:nth-child(2) .cat-icon { background: rgba(245, 158, 11, .1); border: 1px solid rgba(245, 158, 11, .25); color: var(--accent-orange); }
.cat-card:nth-child(3) .cat-icon { background: rgba(99, 102, 241, .1); border: 1px solid rgba(99, 102, 241, .25); color: #818cf8; }
.cat-card h3 { font-size: 1.2rem; font-weight: 600; color: var(--text-main); margin-bottom: 8px; }
.cat-card .cat-desc { font-size: .85rem; color: var(--text-weak); margin-bottom: 20px; }
.cat-list { list-style: none; margin-bottom: 24px; flex: 1; }
.cat-list li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: .88rem; color: var(--text-sub); padding: 6px 0;
}
.cat-list li i { color: var(--accent-teal); font-size: .8rem; margin-top: 5px; flex-shrink: 0; }
.cat-card .btn-block { width: 100%; justify-content: center; }

/* CTA */
.cta-section {
  position: relative; padding: 96px 0; text-align: center;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover; background-position: center;
}
.cta-overlay {
  position: absolute; inset: 0;
  background: rgba(7, 10, 18, .82);
}
.cta-content { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; }
.cta-section h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.2rem); font-weight: 700;
  color: var(--text-main); margin-bottom: 16px; line-height: 1.4;
}
.cta-section h2 span { color: var(--accent-teal); }
.cta-section p { color: var(--text-sub); font-size: 1rem; margin-bottom: 36px; line-height: 1.8; }

/* FAQ */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 12px; margin-bottom: 16px; overflow: hidden;
  transition: border-color .25s;
}
.faq-item.open { border-color: rgba(34, 211, 166, .4); }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; cursor: pointer; user-select: none;
}
.faq-question span { font-size: 1rem; font-weight: 600; color: var(--text-main); }
.faq-icon {
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(34, 211, 166, .1); border: 1px solid rgba(34, 211, 166, .3);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-teal); font-size: .9rem; flex-shrink: 0;
  transition: transform .3s;
}
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-answer-inner { padding: 0 24px 20px; font-size: .9rem; color: var(--text-sub); line-height: 1.75; }

/* Footer */
.site-footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-color);
  padding: 64px 0 100px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand p { font-size: .9rem; color: var(--text-sub); line-height: 1.8; max-width: 300px; }
.footer-col h4 { font-size: .95rem; font-weight: 600; color: var(--text-main); margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: .88rem; color: var(--text-sub); transition: color .2s; }
.footer-col ul a:hover { color: var(--accent-teal); }
.footer-bottom {
  margin-top: 48px; padding-top: 24px;
  border-top: 1px solid rgba(30, 41, 59, .6);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  font-size: .82rem; color: var(--text-weak);
}
.footer-bottom .domain { color: var(--text-sub); }

/* Mobile Bottom Tab */
.mobile-tab-bar {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 200;
  background: rgba(10, 14, 26, .95); backdrop-filter: blur(12px);
  border-top: 1px solid rgba(30, 41, 59, .8);
  grid-template-columns: repeat(4, 1fr);
}
.tab-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 10px 4px 8px; gap: 4px;
  font-size: .7rem; color: var(--text-weak); transition: color .2s;
}
.tab-item i { font-size: 1.1rem; }
.tab-item.active { color: var(--accent-teal); }
.tab-item.active i { text-shadow: 0 0 12px rgba(34, 211, 166, .5); }

/* Mobile dropdown */
.mobile-dropdown {
  display: none; position: absolute; top: 72px; left: 0; right: 0;
  background: rgba(10, 14, 26, .98); border-bottom: 1px solid var(--border-color);
  padding: 16px 24px; z-index: 99;
}
.mobile-dropdown.show { display: block; }
.mobile-dropdown a {
  display: block; padding: 12px 0; font-size: .95rem;
  color: var(--text-sub); border-bottom: 1px solid rgba(30, 41, 59, .5);
}
.mobile-dropdown a:last-child { border-bottom: none; }
.mobile-dropdown a.active { color: var(--accent-teal); }

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

/* Responsive */
@media (min-width: 1024px) {
  .main-nav { display: flex; }
  .mobile-menu-btn { display: none; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
@media (max-width: 1023px) and (min-width: 768px) {
  .main-nav { gap: 2px; }
  .main-nav a { padding: 8px 10px; font-size: .85rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .main-nav { display: none; }
  .mobile-menu-btn { display: block; }
  .header-cta .btn-primary { display: none; }
  .mobile-tab-bar { display: grid; }
  .site-footer { padding-bottom: 84px; }
  .section { padding: 64px 0; }
  .hero { min-height: auto; padding: 64px 0 72px; }
  .hero-actions .btn-primary, .hero-actions .btn-secondary { width: 100%; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section-head h2 { font-size: 1.3rem; }
  .grid-mobile-1 { grid-template-columns: 1fr !important; }
}

/* Grid helpers */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
@media (max-width: 1023px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 767px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

/* roulang page: category1 */
:root {
    --bg-deep: #0A0E1A;
    --bg-deeper: #070A12;
    --card-bg: #111827;
    --card-alt: #0D1420;
    --jade: #22D3A6;
    --comet: #F59E0B;
    --text-main: #F3F6FC;
    --text-dim: #9BA9BD;
    --text-faint: #5B6B82;
    --border-line: #1E293B;
  }

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

  html { scroll-behavior: smooth; }

  body {
    font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background-color: var(--bg-deep);
    color: var(--text-main);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

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

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

  .section-alt {
    background: var(--bg-deeper);
    border-top: 1px solid var(--border-line);
    border-bottom: 1px solid var(--border-line);
  }

  /* Header */
  .main-header {
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-line);
    position: sticky;
    top: 0;
    z-index: 100;
  }

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

  .site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--jade);
    color: #071012;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    box-shadow: 0 0 18px rgba(34, 211, 166, 0.35);
  }

  .logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 1px;
  }

  .logo-text span {
    color: var(--jade);
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .main-nav a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 999px;
    transition: color .25s, background .25s;
  }

  .main-nav a:hover {
    color: var(--text-main);
    background: rgba(34, 211, 166, 0.1);
  }

  .main-nav a.active {
    color: var(--jade);
    background: rgba(34, 211, 166, 0.12);
  }

  .cta-nav {
    background: var(--jade) !important;
    color: #071012 !important;
    font-weight: 700;
    padding: 9px 22px !important;
    border-radius: 999px;
    transition: all .25s;
    font-size: 15px !important;
    text-decoration: none;
  }

  .cta-nav:hover {
    background: #2ee7b8 !important;
    transform: scale(1.02);
  }

  .menu-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border-line);
    border-radius: 10px;
    width: 40px;
    height: 40px;
    color: var(--text-main);
    font-size: 18px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
  }

  /* Hero */
  .hero-section {
    position: relative;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    padding: 120px 0 100px;
    overflow: hidden;
  }

  .hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(10,14,26,0.94) 0%, rgba(10,14,26,0.78) 45%, rgba(10,14,26,0.45) 100%);
    z-index: 1;
  }

  .hero-section::after {
    content: '';
    position: absolute;
    top: -80px;
    right: -40px;
    width: 460px;
    height: 460px;
    background: radial-gradient(circle, rgba(34,211,166,0.22) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
  }

  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.4);
    color: #FBBF24;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 24px;
  }

  .hero-badge i {
    font-size: 12px;
    animation: pulse-dot 1.6s ease-in-out infinite;
  }

  @keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
  }

  .hero-content h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-main);
  }

  .hero-content h1 span {
    color: var(--jade);
  }

  .hero-subtitle {
    font-size: 18px;
    color: var(--text-dim);
    margin-bottom: 16px;
    font-weight: 500;
  }

  .hero-desc {
    font-size: 16px;
    color: var(--text-dim);
    margin-bottom: 36px;
    max-width: 560px;
    line-height: 1.8;
  }

  .hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 52px;
  }

  .hero-stats {
    display: flex;
    gap: 36px;
    flex-wrap: wrap;
  }

  .hero-stat {
    text-align: center;
  }

  .hero-stat span {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--jade);
    line-height: 1.2;
  }

  .hero-stat small {
    display: block;
    font-size: 13px;
    color: var(--text-faint);
    margin-top: 4px;
  }

  /* Section Title */
  .section-title-wrap {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
  }

  .section-title-wrap::before {
    content: '';
    width: 4px;
    height: 26px;
    background: var(--jade);
    border-radius: 4px;
    flex-shrink: 0;
  }

  .section-title {
    font-size: clamp(1.4rem, 2.2vw, 1.75rem);
    font-weight: 700;
    color: var(--text-main);
  }

  .section-desc {
    color: var(--text-dim);
    font-size: 16px;
    margin-bottom: 40px;
    max-width: 640px;
    line-height: 1.7;
  }

  /* Feature Cards */
  .feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-line);
    border-radius: 16px;
    padding: 32px 28px;
    transition: all .3s ease;
    height: 100%;
  }

  .feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(34, 211, 166, 0.4);
    box-shadow: 0 12px 32px rgba(0,0,0,0.55);
  }

  .feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(34, 211, 166, 0.12);
    color: var(--jade);
    font-size: 22px;
    margin-bottom: 20px;
  }

  .feature-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-main);
  }

  .feature-card p {
    color: var(--text-dim);
    font-size: 15px;
    line-height: 1.7;
  }

  /* Match Cards */
  .match-card {
    background: var(--card-bg);
    border: 1px solid var(--border-line);
    border-radius: 16px;
    overflow: hidden;
    transition: all .3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .match-card:hover {
    transform: translateY(-4px);
    border-color: rgba(34, 211, 166, 0.4);
    box-shadow: 0 12px 32px rgba(0,0,0,0.55);
  }

  .match-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
  }

  .match-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .match-badge {
    display: inline-block;
    background: rgba(245, 158, 11, 0.18);
    color: #FBBF24;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 14px;
    align-self: flex-start;
    border: 1px solid rgba(245, 158, 11, 0.3);
  }

  .match-card-body h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
  }

  .match-card-body p {
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
  }

  .match-link {
    color: var(--jade);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap .25s;
  }

  .match-link:hover {
    gap: 10px;
    color: #2ee7b8;
  }

  /* Steps */
  .step-item {
    background: var(--card-alt);
    border: 1px solid var(--border-line);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: all .3s ease;
    height: 100%;
  }

  .step-item:hover {
    border-color: rgba(34, 211, 166, 0.35);
    transform: translateY(-3px);
  }

  .step-num {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(34, 211, 166, 0.15);
    color: var(--jade);
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    border: 1px solid rgba(34, 211, 166, 0.3);
  }

  .step-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
  }

  .step-item p {
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.7;
  }

  /* Stats */
  .stats-section {
    background: linear-gradient(135deg, #0D1420 0%, #111827 100%);
    border-top: 1px solid var(--border-line);
    border-bottom: 1px solid var(--border-line);
  }

  .stat-number {
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--jade);
    line-height: 1.1;
    margin-bottom: 6px;
  }

  .stat-label {
    color: var(--text-dim);
    font-size: 14px;
  }

  /* FAQ */
  .faq-list {
    max-width: 820px;
  }

  .faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-line);
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .3s;
  }

  .faq-item.open {
    border-color: rgba(34, 211, 166, 0.4);
  }

  .faq-question {
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-main);
    transition: color .25s;
    user-select: none;
  }

  .faq-question:hover {
    color: var(--jade);
  }

  .faq-icon {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--border-line);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--jade);
    transition: transform .3s;
    flex-shrink: 0;
  }

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

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
    color: var(--text-dim);
    font-size: 15px;
    line-height: 1.75;
  }

  .faq-item.open .faq-answer {
    max-height: 400px;
    padding: 0 24px 22px;
  }

  /* CTA */
  .cta-section {
    background: linear-gradient(135deg, #0D1420 0%, #0A0E1A 50%, #0D1420 100%);
    border: 1px solid var(--border-line);
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    padding: 64px 40px;
    text-align: center;
  }

  .cta-section::before {
    content: '';
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(34,211,166,0.15) 0%, transparent 70%);
  }

  .cta-section h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
    position: relative;
  }

  .cta-section p {
    color: var(--text-dim);
    font-size: 16px;
    max-width: 560px;
    margin: 0 auto 32px;
    position: relative;
  }

  .cta-section .btn-primary {
    position: relative;
  }

  /* Buttons */
  .btn-primary {
    background: var(--jade);
    color: #071012;
    font-weight: 700;
    padding: 13px 30px;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all .25s;
    font-size: 15px;
    line-height: 1.4;
  }

  .btn-primary:hover {
    background: #2ee7b8;
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(34, 211, 166, 0.3);
  }

  .btn-primary:active {
    transform: scale(0.98);
  }

  .btn-outline {
    background: transparent;
    color: var(--jade);
    border: 1px solid rgba(34, 211, 166, 0.5);
    padding: 12px 28px;
    border-radius: 999px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all .25s;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.4;
  }

  .btn-outline:hover {
    background: rgba(34, 211, 166, 0.1);
    border-color: var(--jade);
    color: #2ee7b8;
  }

  .btn-primary:focus-visible,
  .btn-outline:focus-visible,
  a:focus-visible,
  button:focus-visible {
    outline: 2px solid var(--jade);
    outline-offset: 2px;
  }

  /* Footer */
  .site-footer {
    background: var(--bg-deeper);
    border-top: 1px solid var(--border-line);
    padding: 64px 0 32px;
    margin-top: 96px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 44px;
  }

  .footer-brand p {
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.75;
    margin-top: 16px;
    max-width: 360px;
  }

  .footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
  }

  .footer-col h4 {
    font-size: 15px;
    color: var(--text-main);
    margin-bottom: 18px;
    font-weight: 600;
  }

  .footer-col ul {
    list-style: none;
  }

  .footer-col ul li {
    margin-bottom: 10px;
  }

  .footer-col ul a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 14px;
    transition: color .25s;
  }

  .footer-col ul a:hover {
    color: var(--jade);
  }

  .footer-bottom {
    border-top: 1px solid var(--border-line);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--text-faint);
    font-size: 14px;
  }

  .domain {
    color: var(--text-faint);
  }

  /* Bottom Tabs */
  .bottom-tabs {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 26, 0.96);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-line);
    z-index: 200;
    padding: 6px 0;
    padding-bottom: calc(6px + env(safe-area-inset-bottom));
  }

  .bottom-tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    color: var(--text-faint);
    text-decoration: none;
    font-size: 11px;
    transition: color .25s;
    flex: 1;
    padding: 4px 0;
  }

  .bottom-tab-item i {
    font-size: 18px;
  }

  .bottom-tab-item.active {
    color: var(--jade);
  }

  .bottom-tab-item:hover {
    color: var(--jade);
  }

  /* Responsive */
  @media (max-width: 1023px) {
    .main-nav {
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      background: rgba(10, 14, 26, 0.98);
      flex-direction: column;
      align-items: stretch;
      padding: 16px 24px;
      display: none;
      border-bottom: 1px solid var(--border-line);
      box-shadow: 0 16px 40px rgba(0,0,0,0.5);
      gap: 8px;
    }

    .main-nav.open {
      display: flex;
    }

    .main-nav a {
      padding: 12px 16px;
      border-radius: 10px;
      font-size: 16px;
    }

    .cta-nav {
      display: none !important;
    }

    .menu-toggle {
      display: flex;
    }
  }

  @media (max-width: 767px) {
    .section-block {
      padding: 64px 0;
    }

    .hero-section {
      padding: 80px 0 60px;
    }

    .hero-stats {
      gap: 24px;
    }

    .hero-stat span {
      font-size: 22px;
    }

    .bottom-tabs {
      display: flex;
    }

    body {
      padding-bottom: 60px;
    }

    .site-footer {
      margin-top: 64px;
      padding: 48px 0 24px;
    }

    .cta-section {
      padding: 40px 20px;
    }

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

    .hero-actions .btn-primary,
    .hero-actions .btn-outline {
      width: 100%;
      text-align: center;
    }

    .hero-actions {
      flex-direction: column;
    }
  }

  @media (max-width: 480px) {
    .container {
      padding: 0 16px;
    }

    .feature-card {
      padding: 24px 20px;
    }

    .match-card img {
      height: 150px;
    }

    .faq-question {
      padding: 16px 18px;
      font-size: 15px;
    }

    .faq-item.open .faq-answer {
      padding: 0 18px 16px;
    }
  }

/* roulang page: category2 */
:root {
  --bg-primary: #0A0E1A;
  --bg-deep: #070A12;
  --card-primary: #111827;
  --card-secondary: #0D1420;
  --accent-teal: #22D3A6;
  --accent-orange: #F59E0B;
  --text-main: #F3F6FC;
  --text-secondary: #9BA9BD;
  --text-muted: #5B6B82;
  --border-color: #1E293B;
  --radius-card: 16px;
  --radius-btn: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,.45);
  --shadow-hover: 0 16px 40px rgba(0,0,0,.6);
  --nav-h: 72px;
  --container: 1200px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
}
ul,
ol {
  list-style: none;
}
button,
input {
  font: inherit;
  border: none;
  outline: none;
  background: none;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 96px 0;
}
.section-alt {
  background: var(--bg-deep);
}
.section-head {
  margin-bottom: 48px;
}
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-teal);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-head .eyebrow::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--accent-teal);
  border-radius: 2px;
}
.section-head h2 {
  font-size: clamp(1.4rem, 2.2vw, 1.75rem);
  font-weight: 700;
  line-height: 1.3;
  position: relative;
  padding-left: 16px;
}
.section-head h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--accent-teal), var(--accent-orange));
}
.section-head .subtitle {
  color: var(--text-secondary);
  margin-top: 12px;
  max-width: 560px;
  font-size: 16px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 26, .85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-color);
  height: var(--nav-h);
}
.header-inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(34, 211, 166, .25), rgba(34, 211, 166, .05));
  border: 1px solid rgba(34, 211, 166, .4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-teal);
  font-size: 15px;
  position: relative;
}
.logo-icon::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 14px;
  border: 1px solid rgba(34, 211, 166, .15);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text-main);
}
.logo-text span {
  color: var(--accent-teal);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.main-nav a {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color .25s, background .25s;
  position: relative;
}
.main-nav a:hover {
  color: var(--text-main);
  background: rgba(34, 211, 166, .08);
}
.main-nav a.active {
  color: var(--accent-teal);
  background: rgba(34, 211, 166, .1);
}
.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: 999px;
  background: var(--accent-teal);
  color: #06261e;
  font-weight: 600;
  font-size: 14px;
  transition: transform .2s, box-shadow .2s, background .2s;
  flex-shrink: 0;
}
.btn-nav:hover {
  background: #4ce3bc;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(34, 211, 166, .3);
}
.btn-nav:active {
  transform: translateY(0);
}

/* ---------- Mobile Bottom Tab ---------- */
.mobile-tabbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(7, 10, 18, .95);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-color);
  padding: 6px 12px calc(6px + env(safe-area-inset-bottom));
}
.mobile-tabbar .tab-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}
.mobile-tabbar .tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 4px;
  border-radius: 12px;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 500;
  transition: color .2s, background .2s;
}
.mobile-tabbar .tab-item i {
  font-size: 18px;
}
.mobile-tabbar .tab-item.active {
  color: var(--accent-teal);
  background: rgba(34, 211, 166, .08);
}
.mobile-tabbar .tab-item:hover {
  color: var(--text-main);
}
.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  font-size: 18px;
  cursor: pointer;
  background: rgba(17, 24, 39, .6);
}

@media (max-width: 1023px) {
  .main-nav {
    gap: 4px;
  }
  .main-nav a {
    padding: 8px 12px;
    font-size: 14px;
  }
}
@media (max-width: 767px) {
  .section {
    padding: 64px 0;
  }
  .main-nav {
    display: none;
  }
  .btn-nav {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .mobile-tabbar {
    display: block;
  }
  body {
    padding-bottom: 66px;
  }
}
.mobile-drawer {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  z-index: 150;
  background: rgba(7, 10, 18, .98);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px 24px;
  flex-direction: column;
  gap: 8px;
}
.mobile-drawer.open {
  display: flex;
}
.mobile-drawer a {
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, .02);
  transition: color .2s, background .2s;
}
.mobile-drawer a:hover,
.mobile-drawer a.active {
  color: var(--accent-teal);
  background: rgba(34, 211, 166, .08);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  padding: 96px 0 80px;
  overflow: hidden;
  background: var(--bg-deep);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center top;
  opacity: .5;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 14, 26, .92) 0%, rgba(10, 14, 26, .75) 50%, rgba(10, 14, 26, .45) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(245, 158, 11, .12);
  border: 1px solid rgba(245, 158, 11, .35);
  color: var(--accent-orange);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-badge i {
  font-size: 12px;
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .01em;
  margin-bottom: 20px;
}
.hero h1 .gradient {
  background: linear-gradient(90deg, var(--accent-teal), #66e6c5);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 600px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: 999px;
  background: var(--accent-teal);
  color: #06261e;
  font-size: 16px;
  font-weight: 700;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.btn-primary:hover {
  background: #4ce3bc;
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 32px rgba(34, 211, 166, .35);
}
.btn-primary:active {
  transform: translateY(0) scale(.99);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 166, .5);
  color: var(--accent-teal);
  font-size: 16px;
  font-weight: 600;
  background: rgba(34, 211, 166, .05);
  transition: background .2s, border-color .2s, transform .2s;
}
.btn-secondary:hover {
  background: rgba(34, 211, 166, .12);
  border-color: var(--accent-teal);
  transform: translateY(-2px);
}
.btn-secondary:active {
  transform: translateY(0);
}
.btn:focus-visible,
.main-nav a:focus-visible,
.btn-nav:focus-visible,
.mobile-tabbar .tab-item:focus-visible,
.mobile-menu-btn:focus-visible,
.mobile-drawer a:focus-visible {
  outline: 2px solid var(--accent-teal);
  outline-offset: 2px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(30, 41, 59, .7);
}
.hero-stats .stat {
  display: flex;
  flex-direction: column;
}
.hero-stats .num {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}
.hero-stats .label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---------- Feature cards ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--card-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  transition: transform .3s, box-shadow .3s, border-color .3s;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-teal), transparent);
  opacity: 0;
  transition: opacity .3s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(34, 211, 166, .4);
}
.feature-card:hover::before {
  opacity: 1;
}
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
  background: rgba(34, 211, 166, .1);
  color: var(--accent-teal);
  border: 1px solid rgba(34, 211, 166, .2);
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Content cards ---------- */
.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.content-card {
  background: var(--card-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform .3s, box-shadow .3s, border-color .3s;
  display: flex;
  flex-direction: column;
}
.content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(34, 211, 166, .4);
}
.content-card .card-img {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--card-secondary);
}
.content-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.content-card:hover .card-img img {
  transform: scale(1.05);
}
.card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(7, 10, 18, .6));
}
.card-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(245, 158, 11, .9);
  color: #1a1204;
  font-size: 12px;
  font-weight: 600;
}
.card-time {
  position: absolute;
  bottom: 14px;
  left: 14px;
  z-index: 2;
  color: rgba(255, 255, 255, .85);
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-body h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 18px;
  flex: 1;
}
.card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-teal);
  font-size: 14px;
  font-weight: 600;
  transition: gap .2s, color .2s;
}
.card-more:hover {
  color: #4ce3bc;
  gap: 10px;
}
.card-more i {
  font-size: 12px;
}

/* ---------- Flow / steps ---------- */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: flow;
}
.flow-step {
  background: var(--card-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  position: relative;
  transition: border-color .3s, transform .3s;
}
.flow-step:hover {
  border-color: rgba(34, 211, 166, .4);
  transform: translateY(-4px);
}
.flow-step .step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(34, 211, 166, .1);
  border: 1px solid rgba(34, 211, 166, .3);
  color: var(--accent-teal);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.flow-step h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.flow-step p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}
.flow-step .step-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 40px;
  font-weight: 800;
  color: rgba(34, 211, 166, .06);
  line-height: 1;
}

/* ---------- Stats band ---------- */
.stats-band {
  background: linear-gradient(135deg, rgba(34, 211, 166, .08), rgba(245, 158, 11, .06));
  border: 1px solid rgba(34, 211, 166, .12);
  border-radius: 24px;
  padding: 56px 40px;
  position: relative;
  overflow: hidden;
}
.stats-band::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(34, 211, 166, .1), transparent 70%);
  border-radius: 50%;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
  position: relative;
  z-index: 2;
}
.stats-grid .item .num {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: var(--accent-teal);
  line-height: 1.2;
}
.stats-grid .item .num::after {
  content: '+';
  color: var(--accent-orange);
}
.stats-grid .item .label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--card-primary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color .3s;
}
.faq-item:hover {
  border-color: rgba(34, 211, 166, .3);
}
.faq-item.open {
  border-color: rgba(34, 211, 166, .45);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  transition: color .2s;
}
.faq-q:hover {
  color: var(--accent-teal);
}
.faq-q .icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(34, 211, 166, .1);
  border: 1px solid rgba(34, 211, 166, .25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--accent-teal);
  transition: transform .3s;
}
.faq-item.open .faq-q .icon {
  transform: rotate(135deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .4s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}
.faq-item.open .faq-a {
  max-height: 300px;
  padding: 0 24px 22px;
}

/* ---------- CTA ---------- */
.cta-section {
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
  padding: 96px 0;
}
.cta-section .cta-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  opacity: .2;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  padding: 64px 40px;
  border: 1px solid rgba(34, 211, 166, .15);
  border-radius: 32px;
  background: rgba(13, 20, 32, .7);
  backdrop-filter: blur(8px);
}
.cta-inner h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 16px;
}
.cta-inner p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 32px;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #070A12;
  border-top: 1px solid var(--border-color);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-logo .logo-icon {
  background: linear-gradient(135deg, rgba(34, 211, 166, .2), rgba(34, 211, 166, .05));
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--text-main);
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-teal);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color .2s, padding-left .2s;
}
.footer-col ul a:hover {
  color: var(--accent-teal);
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 24px 0 104px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.footer-bottom .domain {
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: .04em;
}
@media (max-width: 767px) {
  .footer-bottom {
    padding-bottom: 24px;
    justify-content: center;
    text-align: center;
  }
}

/* ---------- Responsive grids ---------- */
@media (max-width: 1023px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .content-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .flow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 767px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .content-grid {
    grid-template-columns: 1fr;
  }
  .flow-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero {
    min-height: auto;
    padding: 64px 0 56px;
  }
  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 32px;
  }
  .hero-stats .stat {
    flex: 1;
    min-width: 100px;
  }
  .cta-inner {
    padding: 40px 24px;
  }
  .stats-band {
    padding: 40px 24px;
  }
}

/* roulang page: article */
:root {
  --deep: #070A12;
  --main: #0A0E1A;
  --card: #111827;
  --card2: #0D1420;
  --primary: #22D3A6;
  --accent: #F59E0B;
  --text-main: #F3F6FC;
  --text-sub: #9BA9BD;
  --text-muted: #5B6B82;
  --border: #1E293B;
  --radius-card: 16px;
  --radius-btn: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,.45);
  --shadow-hover: 0 12px 32px rgba(0,0,0,.55);
  --transition: all .3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--main);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul, ol {
  list-style: none;
}

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

/* ===== 按钮体系 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 28px;
  transition: var(--transition);
  border: 1px solid transparent;
  line-height: 1.4;
  text-align: center;
}

.btn i {
  font-size: 14px;
}

.btn-primary {
  background: var(--primary);
  color: #06251C;
  box-shadow: 0 4px 20px rgba(34,211,166,.22);
}

.btn-primary:hover {
  background: #2FE6B8;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(34,211,166,.35);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(34,211,166,.2);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: rgba(34,211,166,.5);
}

.btn-outline:hover {
  background: rgba(34,211,166,.1);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255,255,255,.04);
  color: var(--text-sub);
  border-color: rgba(255,255,255,.08);
}

.btn-ghost:hover {
  color: var(--text-main);
  background: rgba(255,255,255,.08);
}

.btn-lg {
  padding: 16px 38px;
  font-size: 17px;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

.btn:focus-visible,
.main-nav a:focus-visible,
a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,14,26,.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(34,211,166,.5), rgba(34,211,166,.12) 60%, transparent);
  border: 1px solid rgba(34,211,166,.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 15px;
  box-shadow: 0 0 18px rgba(34,211,166,.18);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .5px;
  color: var(--text-main);
}

.logo-text em,
.logo-text span {
  font-style: normal;
  color: var(--primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  padding: 8px 15px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  color: var(--text-sub);
  transition: var(--transition);
  position: relative;
  font-weight: 500;
}

.main-nav a:hover {
  color: var(--text-main);
  background: rgba(34,211,166,.08);
}

.main-nav a.active {
  color: var(--primary);
  background: rgba(34,211,166,.12);
}

.nav-cta {
  flex-shrink: 0;
}

.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  font-size: 18px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.mobile-menu-btn:hover {
  color: var(--primary);
  border-color: rgba(34,211,166,.4);
}

/* ===== 移动端菜单面板 ===== */
.mobile-menu-panel {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  z-index: 99;
  background: rgba(7,10,18,.97);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.mobile-menu-panel.open {
  display: block;
}

.mobile-menu-panel a {
  display: block;
  padding: 12px 16px;
  border-radius: 12px;
  color: var(--text-sub);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.mobile-menu-panel a:hover,
.mobile-menu-panel a.active {
  color: var(--primary);
  background: rgba(34,211,166,.08);
}

/* ===== 文章头部 ===== */
.article-hero {
  padding: 56px 0 40px;
  position: relative;
  background: linear-gradient(to bottom, rgba(7,10,18,.55), rgba(10,14,26,.95)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom: 1px solid var(--border);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-sub);
  transition: var(--transition);
}

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

.breadcrumb i {
  font-size: 10px;
  color: var(--text-muted);
}

.article-hero .article-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  max-width: 860px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--text-muted);
  font-size: 14px;
  padding-top: 20px;
  border-top: 1px solid rgba(30,41,59,.7);
}

.article-meta span {
  display: inline-flex;
  align-items: center;
}

.article-meta i {
  color: var(--primary);
  margin-right: 7px;
  font-size: 13px;
}

/* ===== 正文区 ===== */
.article-body {
  padding: 48px 0 24px;
}

.article-main {
  max-width: 720px;
  margin: 0 auto;
}

.article-cover {
  border-radius: var(--radius-card);
  overflow: hidden;
  margin-bottom: 36px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border);
}

.article-cover img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: #D4DDEC;
}

.article-content p {
  margin-bottom: 1.5em;
}

.article-content h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 2em 0 .8em;
  color: var(--text-main);
  line-height: 1.4;
}

.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 1.8em 0 .6em;
  color: var(--text-main);
  line-height: 1.4;
}

.article-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 1.5em 0 .5em;
  color: var(--text-main);
}

.article-content img {
  border-radius: 12px;
  margin: 24px 0;
}

.article-content blockquote {
  border-left: 3px solid var(--primary);
  background: rgba(34,211,166,.06);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  color: var(--text-sub);
}

.article-content ul,
.article-content ol {
  padding-left: 22px;
  margin-bottom: 1.5em;
}

.article-content ul li {
  list-style: disc;
  margin-bottom: .5em;
}

.article-content ol li {
  list-style: decimal;
  margin-bottom: .5em;
}

.article-content strong {
  color: var(--text-main);
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}

.article-content th {
  background: rgba(34,211,166,.08);
  color: var(--text-main);
}

/* ===== 文章底部导航 ===== */
.article-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.article-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-sub);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  padding: 8px 14px;
  border-radius: var(--radius-btn);
}

.article-nav a:hover {
  color: var(--primary);
  background: rgba(34,211,166,.08);
}

/* ===== 未找到 ===== */
.not-found {
  text-align: center;
  padding: 40px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
}

.not-found i {
  font-size: 42px;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: block;
}

.not-found h2 {
  font-size: 22px;
  margin-bottom: 10px;
  color: var(--text-main);
}

.not-found p {
  color: var(--text-sub);
  margin-bottom: 24px;
}

/* ===== 相关推荐 ===== */
.related-section {
  padding: 72px 0 64px;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 40px;
}

.section-title {
  font-size: clamp(1.4rem, 2.2vw, 1.75rem);
  font-weight: 700;
  color: var(--text-main);
  padding-left: 16px;
  position: relative;
  line-height: 1.3;
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--primary);
  border-radius: 999px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.related-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
  display: block;
}

.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34,211,166,.4);
  box-shadow: var(--shadow-hover);
}

.related-card .cover {
  position: relative;
  height: 168px;
  overflow: hidden;
}

.related-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.related-card:hover .cover img {
  transform: scale(1.05);
}

.related-card .cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,20,32,.6), transparent);
}

.related-body {
  padding: 20px;
}

.related-body .tag {
  display: inline-block;
  background: rgba(245,158,11,.14);
  color: var(--accent);
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
  font-weight: 600;
}

.related-body h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
  line-height: 1.4;
}

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

.back-to-list {
  text-align: center;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 0 96px;
  border-top: 1px solid var(--border);
  background: rgba(13,20,32,.35);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: rgba(34,211,166,.35);
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 22px;
  color: var(--text-main);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-question .icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(34,211,166,.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
  transition: transform .3s ease;
}

.faq-item.active .faq-question .icon {
  transform: rotate(135deg);
  background: var(--primary);
  color: #06251C;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}

.faq-answer p {
  padding: 0 22px 20px;
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.75;
}

.faq-item.active .faq-answer {
  max-height: 400px;
}

/* ===== CTA 区 ===== */
.cta-section {
  padding: 96px 0;
  text-align: center;
  position: relative;
  background: linear-gradient(to bottom, rgba(7,10,18,.5), rgba(7,10,18,.9)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-top: 1px solid var(--border);
}

.cta-inner {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}

.cta-section p {
  color: var(--text-sub);
  max-width: 600px;
  margin: 0 auto 32px;
  font-size: 16px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.section-badge {
  display: inline-block;
  background: rgba(245,158,11,.14);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--deep);
  border-top: 1px solid var(--border);
  padding: 64px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  max-width: 340px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--text-muted);
  font-size: 14px;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid rgba(30,41,59,.6);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-muted);
  font-size: 13px;
}

.footer-bottom .domain {
  color: var(--text-sub);
  font-weight: 500;
  letter-spacing: .5px;
}

/* ===== 底部 Tab（移动端） ===== */
.bottom-tab {
  display: none;
}

.tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 4px 12px;
  color: var(--text-muted);
  font-size: 12px;
  transition: var(--transition);
}

.tab-item i {
  font-size: 18px;
}

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

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .nav-cta {
    display: none;
  }

  .main-nav a {
    padding: 8px 10px;
    font-size: 14px;
  }

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

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

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

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

  .article-hero {
    padding: 40px 0 32px;
  }

  .article-hero .article-title {
    font-size: clamp(1.6rem, 5vw, 2rem);
  }

  .article-cover img {
    height: 220px;
  }

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

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

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

  .faq-section {
    padding: 64px 0;
  }

  .related-section {
    padding: 56px 0 48px;
  }

  .article-meta {
    gap: 12px;
  }

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

  .bottom-tab {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    background: rgba(7,10,18,.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-top: 1px solid var(--border);
  }

  body {
    padding-bottom: 62px;
  }
}

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

  .logo-text {
    font-size: 18px;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .article-nav {
    flex-direction: column;
    align-items: stretch;
  }

  .article-nav a {
    justify-content: center;
  }
}

/* roulang page: category3 */
:root{
  --bg-body:#0A0E1A;
  --bg-deep:#070A12;
  --bg-card:#111827;
  --bg-card-alt:#0D1420;
  --accent:#22D3A6;
  --accent-rgb:34,211,166;
  --accent-orange:#F59E0B;
  --accent-orange-rgb:245,158,11;
  --text-main:#F3F6FC;
  --text-secondary:#9BA9BD;
  --text-muted:#5B6B82;
  --border:#1E293B;
  --radius-card:16px;
  --radius-btn:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 16px 40px rgba(0,0,0,.6);
  --trans:all .3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg-body);
  color:var(--text-main);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
h1{font-size:clamp(2rem,4vw,3.2rem);font-weight:700;line-height:1.2}
h2{font-size:clamp(1.4rem,2.2vw,1.75rem);font-weight:700;line-height:1.4}
h3{font-size:1.125rem;font-weight:600;line-height:1.5}
section{scroll-margin-top:80px}

/* ===== Header ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:rgba(7,10,18,.85);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(30,41,59,.7);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:20px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-icon{
  display:flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  background:linear-gradient(135deg,rgba(34,211,166,.2),rgba(34,211,166,.05));
  border:1px solid rgba(34,211,166,.35);
  border-radius:12px;
  color:var(--accent);
  font-size:16px;
}
.logo-text{
  font-size:1.35rem;
  font-weight:700;
  letter-spacing:.5px;
}
.logo-text span{color:var(--accent)}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
}
.main-nav a{
  padding:8px 16px;
  border-radius:999px;
  font-size:.95rem;
  color:var(--text-secondary);
  transition:var(--trans);
  position:relative;
}
.main-nav a:hover{
  color:var(--text-main);
  background:rgba(255,255,255,.04);
}
.main-nav a.active{
  color:var(--accent);
  background:rgba(34,211,166,.1);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.btn-nav{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:9px 22px;
  border-radius:999px;
  background:var(--accent);
  color:#072018;
  font-weight:600;
  font-size:.9rem;
  transition:var(--trans);
  box-shadow:0 4px 20px rgba(34,211,166,.25);
}
.btn-nav:hover{
  background:#34e6ba;
  transform:translateY(-2px);
  box-shadow:0 6px 28px rgba(34,211,166,.35);
}
.btn-nav:active{transform:translateY(0)}
.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid var(--border);
  border-radius:10px;
  color:var(--text-main);
  padding:8px 14px;
  font-size:.9rem;
  cursor:pointer;
  transition:var(--trans);
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent)}

/* ===== Hero ===== */
.category-hero{
  position:relative;
  padding:160px 0 90px;
  background:
    linear-gradient(rgba(7,10,18,.75),rgba(10,14,26,.9)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.category-hero::before{
  content:'';
  position:absolute;
  top:-120px;right:-80px;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(34,211,166,.16),transparent 70%);
  border-radius:50%;
  filter:blur(30px);
  animation:pulseGlow 7s ease-in-out infinite;
}
@keyframes pulseGlow{
  0%,100%{opacity:.6;transform:scale(1)}
  50%{opacity:1;transform:scale(1.08)}
}
.star-dot{
  position:absolute;
  width:4px;height:4px;
  background:var(--accent);
  border-radius:50%;
  opacity:.8;
  animation:twinkle 3s ease-in-out infinite;
  pointer-events:none;
}
@keyframes twinkle{
  0%,100%{opacity:.2;transform:scale(.8)}
  50%{opacity:.9;transform:scale(1.3)}
}
.hero-inner{
  position:relative;
  z-index:2;
  max-width:860px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 18px;
  border-radius:999px;
  background:rgba(245,158,11,.12);
  border:1px solid rgba(245,158,11,.35);
  color:#fbbf24;
  font-size:.85rem;
  font-weight:600;
  margin-bottom:24px;
}
.hero-badge i{font-size:.8rem}
.category-hero h1{
  font-size:clamp(2.2rem,4.5vw,3.6rem);
  margin-bottom:20px;
  letter-spacing:1px;
}
.category-hero h1 .accent-text{
  color:var(--accent);
}
.hero-sub{
  font-size:1.1rem;
  color:var(--text-secondary);
  max-width:640px;
  line-height:1.8;
  margin-bottom:36px;
}
.hero-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.btn-primary{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 34px;
  border-radius:999px;
  background:var(--accent);
  color:#072018;
  font-weight:700;
  font-size:1rem;
  border:none;
  cursor:pointer;
  transition:var(--trans);
  box-shadow:0 8px 30px rgba(34,211,166,.3);
}
.btn-primary:hover{
  background:#34e6ba;
  transform:translateY(-2px);
  box-shadow:0 12px 36px rgba(34,211,166,.4);
}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 34px;
  border-radius:999px;
  background:transparent;
  color:var(--accent);
  font-weight:600;
  font-size:1rem;
  border:1px solid rgba(34,211,166,.45);
  cursor:pointer;
  transition:var(--trans);
}
.btn-outline:hover{
  background:rgba(34,211,166,.1);
  border-color:var(--accent);
  transform:translateY(-2px);
}
.btn-outline:active{transform:translateY(0)}
.btn-primary:focus-visible,.btn-outline:focus-visible,.btn-nav:focus-visible,.nav-toggle:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}

/* ===== Intro Bar ===== */
.intro-bar{
  padding:40px 0;
  background:var(--bg-deep);
  border-bottom:1px solid rgba(30,41,59,.5);
}
.intro-inner{
  display:flex;
  align-items:center;
  gap:24px;
  flex-wrap:wrap;
}
.intro-icon{
  display:flex;
  align-items:center;
  justify-content:center;
  width:64px;height:64px;
  border-radius:18px;
  background:linear-gradient(135deg,rgba(34,211,166,.15),rgba(34,211,166,.03));
  border:1px solid rgba(34,211,166,.3);
  color:var(--accent);
  font-size:26px;
  flex-shrink:0;
}
.intro-text{
  font-size:1.05rem;
  color:var(--text-secondary);
  max-width:760px;
}

/* ===== Section ===== */
.section{
  padding:96px 0;
}
.section-alt{
  background:var(--bg-deep);
}
.section-head{
  margin-bottom:56px;
  max-width:680px;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--accent);
  font-size:.82rem;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:2px;
  margin-bottom:12px;
}
.section-tag::before{
  content:'';
  width:20px;height:2px;
  background:var(--accent);
  border-radius:2px;
}
.section-head h2{
  margin-bottom:14px;
}
.section-head p{
  color:var(--text-secondary);
  font-size:1rem;
  line-height:1.7;
}

/* ===== Benefits Cards ===== */
.benefits-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.benefit-card{
  position:relative;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:var(--trans);
  box-shadow:var(--shadow-card);
  display:flex;
  flex-direction:column;
}
.benefit-card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,211,166,.4);
  box-shadow:var(--shadow-hover);
}
.benefit-media{
  position:relative;
  aspect-ratio:16/8;
  overflow:hidden;
}
.benefit-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.benefit-card:hover .benefit-media img{
  transform:scale(1.05);
}
.benefit-media::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(10,14,26,0) 30%,rgba(10,14,26,.75) 100%);
}
.benefit-icon{
  position:absolute;
  left:20px;bottom:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  width:48px;height:48px;
  border-radius:14px;
  background:rgba(10,14,26,.75);
  border:1px solid rgba(34,211,166,.4);
  color:var(--accent);
  font-size:20px;
  z-index:2;
  backdrop-filter:blur(6px);
}
.benefit-hot{
  position:absolute;
  top:14px;right:14px;
  z-index:3;
  background:var(--accent-orange);
  color:#1a1205;
  font-size:.75rem;
  font-weight:700;
  padding:4px 14px;
  border-radius:999px;
  box-shadow:0 4px 16px rgba(245,158,11,.4);
}
.benefit-body{
  padding:24px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.benefit-body h3{
  margin-bottom:10px;
}
.benefit-body p{
  color:var(--text-secondary);
  font-size:.95rem;
  line-height:1.7;
  flex:1;
}
.benefit-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--accent);
  font-size:.9rem;
  font-weight:600;
  margin-top:16px;
  transition:var(--trans);
}
.benefit-link:hover{
  gap:12px;
  color:#34e6ba;
}

/* ===== Stats ===== */
.stats-section{
  background:
    linear-gradient(rgba(7,10,18,.9),rgba(7,10,18,.95)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat fixed;
  padding:80px 0;
  border-top:1px solid rgba(30,41,59,.5);
  border-bottom:1px solid rgba(30,41,59,.5);
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat-card{
  text-align:center;
  padding:36px 18px;
  background:rgba(17,24,39,.65);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  backdrop-filter:blur(8px);
  transition:var(--trans);
}
.stat-card:hover{
  border-color:rgba(34,211,166,.35);
  transform:translateY(-4px);
}
.stat-num{
  font-size:clamp(1.8rem,3vw,2.6rem);
  font-weight:800;
  color:var(--accent);
  line-height:1.2;
  margin-bottom:6px;
}
.stat-label{
  color:var(--text-secondary);
  font-size:.92rem;
}

/* ===== Flow ===== */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  counter-reset:step;
}
.flow-card{
  position:relative;
  padding:40px 24px 30px;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  text-align:center;
  transition:var(--trans);
}
.flow-card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,211,166,.4);
  box-shadow:var(--shadow-hover);
}
.flow-step{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:.75rem;
  font-weight:700;
  color:var(--accent);
  background:rgba(34,211,166,.1);
  border:1px solid rgba(34,211,166,.25);
  width:32px;height:32px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 18px;
}
.flow-icon{
  font-size:30px;
  color:var(--accent);
  margin-bottom:16px;
}
.flow-card h3{
  margin-bottom:10px;
  font-size:1.05rem;
}
.flow-card p{
  color:var(--text-secondary);
  font-size:.9rem;
  line-height:1.65;
}

/* ===== FAQ ===== */
.faq-section{
  padding:96px 0;
  background:var(--bg-deep);
}
.faq-list{
  max-width:820px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:14px;
  overflow:hidden;
  transition:var(--trans);
}
.faq-item.open{
  border-color:rgba(34,211,166,.4);
}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 24px;
  cursor:pointer;
  font-weight:600;
  font-size:1rem;
  background:transparent;
  border:none;
  color:var(--text-main);
  width:100%;
  text-align:left;
  transition:var(--trans);
}
.faq-q:hover{
  color:var(--accent);
}
.faq-icon{
  width:22px;height:22px;
  border-radius:50%;
  border:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  color:var(--accent);
  font-size:.7rem;
  transition:transform .3s ease;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  border-color:var(--accent);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .45s ease;
}
.faq-a-inner{
  padding:0 24px 20px;
  color:var(--text-secondary);
  font-size:.95rem;
  line-height:1.75;
}

/* ===== CTA ===== */
.cta-section{
  padding:100px 0;
  position:relative;
  background:
    linear-gradient(rgba(7,10,18,.85),rgba(7,10,18,.92)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  text-align:center;
  overflow:hidden;
}
.cta-box{
  max-width:680px;
  margin:0 auto;
  position:relative;
  z-index:2;
}
.cta-box h2{
  font-size:clamp(1.6rem,3vw,2.2rem);
  margin-bottom:18px;
}
.cta-box p{
  color:var(--text-secondary);
  font-size:1.05rem;
  margin-bottom:36px;
  line-height:1.8;
}
.cta-actions{
  display:flex;
  justify-content:center;
  gap:16px;
  flex-wrap:wrap;
}

/* ===== Footer ===== */
.site-footer{
  background:#05080f;
  border-top:1px solid rgba(30,41,59,.6);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand p{
  color:var(--text-secondary);
  font-size:.95rem;
  line-height:1.75;
  max-width:320px;
}
.footer-col h4{
  font-size:1rem;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:18px;
  letter-spacing:.5px;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  color:var(--text-secondary);
  font-size:.93rem;
  transition:var(--trans);
}
.footer-col ul a:hover{
  color:var(--accent);
}
.footer-bottom{
  border-top:1px solid rgba(30,41,59,.5);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:.85rem;
  color:var(--text-muted);
}
.footer-bottom .domain{
  color:var(--text-secondary);
  letter-spacing:.5px;
}

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

/* ===== Responsive ===== */
@media(max-width:1023px){
  .main-nav{
    position:fixed;
    top:72px;
    left:24px;
    right:24px;
    background:rgba(7,10,18,.97);
    border:1px solid var(--border);
    border-radius:16px;
    padding:16px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    display:none;
    z-index:99;
    box-shadow:0 20px 50px rgba(0,0,0,.6);
  }
  .main-nav.open{
    display:flex;
  }
  .main-nav a{
    padding:14px 18px;
    border-radius:10px;
    font-size:1rem;
    text-align:center;
  }
  .nav-toggle{
    display:inline-flex;
    align-items:center;
    gap:6px;
  }
  .header-actions .btn-nav{
    display:none;
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .flow-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:36px;
  }
}
@media(max-width:767px){
  .section{
    padding:64px 0;
  }
  .category-hero{
    padding:130px 0 64px;
  }
  .hero-actions{
    flex-direction:column;
  }
  .hero-actions a{
    justify-content:center;
  }
  .benefits-grid{
    grid-template-columns:1fr;
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .stat-card{
    padding:24px 12px;
  }
  .flow-grid{
    grid-template-columns:1fr;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
  .footer-brand p{
    max-width:100%;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
  .cta-actions{
    flex-direction:column;
  }
  .cta-actions .btn-primary,.cta-actions .btn-outline{
    justify-content:center;
  }
  .mobile-tabbar{
    display:flex;
    position:fixed;
    bottom:0;left:0;right:0;
    height:64px;
    background:rgba(7,10,18,.97);
    backdrop-filter:blur(16px);
    border-top:1px solid rgba(30,41,59,.7);
    z-index:120;
    box-shadow:0 -8px 30px rgba(0,0,0,.5);
  }
  .mobile-tabbar a{
    flex:1;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    color:var(--text-muted);
    font-size:.7rem;
    transition:var(--trans);
  }
  .mobile-tabbar a i{
    font-size:1.1rem;
    transition:var(--trans);
  }
  .mobile-tabbar a.active{
    color:var(--accent);
  }
  .mobile-tabbar a.active i{
    transform:scale(1.1);
    text-shadow:0 0 20px rgba(34,211,166,.5);
  }
  body{
    padding-bottom:64px;
  }
}
@media(max-width:520px){
  .container{
    padding:0 16px;
  }
  .hero-sub{
    font-size:1rem;
  }
  .benefits-grid{
    grid-template-columns:1fr;
  }
  .stats-grid{
    grid-template-columns:1fr 1fr;
  }
  .stat-num{
    font-size:1.6rem;
  }
  .intro-inner{
    gap:16px;
  }
}