/* roulang page: index */
:root {
  --bg-deep: #070C16;
  --bg-body: #0B1220;
  --primary: #3B82F6;
  --highlight: #60A5FA;
  --accent: #22D3EE;
  --purple: #A78BFA;
  --text-main: #E5E7EB;
  --text-sub: #94A3B8;
  --text-weak: #64748B;
  --border-weak: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.16);
  --glass-bg: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 20px 40px -20px rgba(0,0,0,0.5);
  --glow-accent: 0 0 30px rgba(34,211,238,0.15);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(59,130,246,0.08), transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(34,211,238,0.05), transparent 40%),
    var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.10);
  background: rgba(7,12,22,0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled {
  background: rgba(7,12,22,0.88);
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.brand-logo {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-main);
  line-height: 1;
}
.brand-logo .brand-ob {
  color: var(--accent);
  font-weight: 800;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.main-nav a {
  font-size: 0.875rem;
  color: var(--text-sub);
  transition: color .25s, opacity .25s;
  position: relative;
  padding: 6px 0;
  letter-spacing: 0.02em;
}
.main-nav a:hover { color: var(--text-main); }
.main-nav a.active { color: var(--text-main); }
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem 1.25rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text-main);
  font-size: .825rem;
  font-weight: 500;
  transition: all .25s ease;
  white-space: nowrap;
}
.nav-cta:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 20px rgba(34,211,238,0.2);
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
  padding: .5rem;
  line-height: 1;
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: rgba(11,18,32,0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255,255,255,0.10);
  padding: 1.25rem 1.5rem 1.5rem;
  z-index: 99;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: .75rem 0;
  color: var(--text-sub);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: .95rem;
  transition: color .2s;
}
.mobile-menu a:hover { color: var(--text-main); }
.mobile-menu a.active { color: var(--accent); }

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .875rem 2rem;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 600;
  color: #04070D;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border: none;
  cursor: pointer;
  transition: all .3s ease;
  box-shadow: 0 4px 20px rgba(59,130,246,0.25);
  letter-spacing: 0.02em;
}
.btn-primary:hover {
  box-shadow: 0 0 24px rgba(34,211,238,0.35);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(0) scale(0.98);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .875rem 2rem;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 500;
  color: var(--text-main);
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  cursor: pointer;
  transition: all .3s ease;
  letter-spacing: 0.02em;
}
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.5);
  color: #fff;
  background: rgba(255,255,255,0.04);
}

/* Hero */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7,12,22,0.85) 0%, rgba(7,12,22,0.55) 40%, rgba(11,18,32,0.95) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding: 7rem 1.5rem 5rem;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .72rem;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.hero-eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
  opacity: .5;
}
.hero-title {
  font-size: clamp(1.9rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  margin: 0 0 1.5rem;
  letter-spacing: 0.01em;
}
.hero-subtitle {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-sub);
  max-width: 560px;
  margin: 0 0 2.25rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 48px;
  background: linear-gradient(180deg, transparent, var(--accent));
  z-index: 2;
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* Sections */
.section-tag {
  font-size: .75rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: .5rem;
}
.section-title {
  font-size: clamp(1.4rem, 2.2vw, 1.85rem);
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
  margin: 0;
}
.section-desc {
  font-size: .95rem;
  color: var(--text-sub);
  margin-top: .75rem;
  max-width: 620px;
  line-height: 1.7;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .875rem;
  color: var(--text-sub);
  transition: color .2s, gap .2s;
  white-space: nowrap;
}
.text-link:hover {
  color: var(--accent);
  gap: .55rem;
}

/* Cards */
.card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
  transition: border-color .3s, box-shadow .3s, transform .3s;
  overflow: hidden;
  display: block;
}
.card:hover {
  border-color: rgba(34,211,238,0.4);
  box-shadow: 0 0 30px rgba(34,211,238,0.15), var(--shadow-card);
}
.card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--bg-deep);
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.card:hover .card-media img {
  transform: scale(1.04);
}
.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(5,8,15,0.85) 100%);
  opacity: 0;
  transition: opacity .35s;
  display: flex;
  align-items: flex-end;
  padding: 1.1rem 1.25rem;
}
.card:hover .card-overlay {
  opacity: 1;
}
.card-overlay span {
  font-size: .85rem;
  color: #fff;
  font-weight: 500;
  letter-spacing: .03em;
}
.card-body {
  padding: .95rem 1.1rem 1.15rem;
}
.card-title {
  font-size: .98rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 0 0 .25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-main);
}
.card-meta {
  font-size: .8rem;
  color: var(--text-weak);
}

/* Library scroll */
.library-scroll {
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-snap-type: x mandatory;
}
.library-scroll::-webkit-scrollbar {
  display: none;
}
.library-card {
  min-width: 280px;
  max-width: 280px;
  scroll-snap-align: start;
}

/* Ranking */
.ranking-list {
  display: flex;
  flex-direction: column;
}
.ranking-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: background .2s, padding-left .2s;
}
.ranking-item:hover {
  background: rgba(255,255,255,0.03);
  padding-left: 1rem;
}
.ranking-number {
  font-family: "Roboto Condensed", "DIN Alternate", sans-serif;
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--accent);
  opacity: .75;
  min-width: 42px;
  line-height: 1;
}
.ranking-info {
  flex: 1;
  min-width: 0;
}
.ranking-title {
  font-size: .95rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: .15rem;
}
.ranking-tag {
  font-size: .78rem;
  color: var(--text-weak);
}
.ranking-score {
  font-family: "Roboto Condensed", "DIN Alternate", sans-serif;
  font-size: .95rem;
  font-weight: 600;
  color: var(--highlight);
}

/* News */
.news-row {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.125rem 1.25rem;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.02);
  transition: all .25s ease;
}
.news-row:hover {
  background: rgba(255,255,255,0.04);
  border-color: rgba(34,211,238,0.3);
  transform: translateX(4px);
}
.news-badge {
  flex-shrink: 0;
  padding: .25rem .75rem;
  border-radius: 999px;
  font-size: .75rem;
  background: rgba(59,130,246,0.15);
  color: var(--highlight);
  border: 1px solid rgba(59,130,246,0.25);
  white-space: nowrap;
}
.news-content {
  flex: 1;
  min-width: 0;
}
.news-content h3 {
  font-size: .95rem;
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-main);
}
.news-content p {
  font-size: .85rem;
  color: var(--text-sub);
  margin: .25rem 0 0;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-time {
  font-size: .8rem;
  color: var(--text-weak);
  white-space: nowrap;
}
.news-arrow {
  color: var(--accent);
  opacity: 0;
  transition: opacity .25s, transform .25s;
  flex-shrink: 0;
}
.news-row:hover .news-arrow {
  opacity: 1;
  transform: translateX(3px);
}
.empty-state {
  border: 1px dashed rgba(255,255,255,0.14);
  border-radius: var(--radius-md);
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--text-weak);
}
.empty-state .empty-icon {
  font-size: 2rem;
  margin-bottom: .75rem;
  opacity: .5;
}

/* Stats */
.stat-card {
  text-align: center;
  padding: 2.25rem 1rem;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.03);
  transition: border-color .3s, box-shadow .3s;
}
.stat-card:hover {
  border-color: rgba(34,211,238,0.3);
  box-shadow: 0 0 30px rgba(34,211,238,0.08);
}
.stat-number {
  font-family: "Roboto Condensed", "DIN Alternate", sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}
.stat-number em {
  font-style: normal;
  color: var(--accent);
}
.stat-label {
  font-size: .875rem;
  color: var(--text-sub);
  margin-top: .5rem;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  font-size: .98rem;
  font-weight: 600;
  cursor: pointer;
  transition: color .2s;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  color: var(--text-main);
}
.faq-question:hover {
  color: var(--accent);
}
.faq-question .faq-icon {
  transition: transform .3s;
  color: var(--text-sub);
  font-size: 1.25rem;
  line-height: 1;
  flex-shrink: 0;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
  font-size: .9rem;
  color: var(--text-sub);
  line-height: 1.8;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 1.25rem;
}
.faq-item.active .faq-question {
  color: var(--accent);
}

/* CTA */
.cta-section {
  position: relative;
  overflow: hidden;
  padding: 5.5rem 0;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(7,12,22,0.88), rgba(7,12,22,0.76));
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.cta-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 1rem;
}
.cta-sub {
  font-size: .95rem;
  color: var(--text-sub);
  margin-bottom: 2rem;
  line-height: 1.7;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.10);
  background: var(--bg-deep);
  padding: 3.5rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-brand {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: .75rem;
}
.footer-brand .brand-ob {
  color: var(--accent);
}
.footer-desc {
  font-size: .85rem;
  color: var(--text-sub);
  line-height: 1.7;
  max-width: 320px;
}
.footer-title {
  font-size: .875rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: #fff;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: .6rem;
}
.footer-links a {
  font-size: .875rem;
  color: var(--text-sub);
  transition: color .2s;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  font-size: .8rem;
  color: var(--text-weak);
  text-align: center;
  letter-spacing: 0.02em;
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-fade-up {
  opacity: 0;
  animation: fadeUp .6s ease forwards;
}
.animation-delay-1 { animation-delay: .1s; }
.animation-delay-2 { animation-delay: .2s; }
.animation-delay-3 { animation-delay: .3s; }

/* Responsive */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}
@media (max-width: 900px) {
  .main-nav { display: none; }
  .menu-toggle { display: block; }
  .nav-cta { display: none; }
}
@media (max-width: 768px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-ghost {
    width: 100%;
  }
  .hero-content {
    padding: 6rem 1.25rem 4rem;
  }
  .library-card {
    min-width: 250px;
    max-width: 250px;
  }
  .news-row {
    flex-wrap: wrap;
    gap: .75rem;
  }
  .news-time {
    display: none;
  }
  .news-arrow {
    opacity: 1;
  }
}
@media (max-width: 640px) {
  .container {
    padding: 0 1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .footer-desc {
    max-width: 100%;
  }
  .stat-card {
    padding: 1.5rem 1rem;
  }
  .stat-number {
    font-size: 1.6rem;
  }
  .btn-primary,
  .btn-ghost {
    padding: .8rem 1.5rem;
    font-size: .9rem;
  }
}

/* roulang page: category1 */
:root {
            --bg-deep: #070C16;
            --bg-base: #0B1220;
            --bg-card: rgba(255, 255, 255, 0.05);
            --border-card: rgba(255, 255, 255, 0.09);
            --primary: #3B82F6;
            --highlight: #60A5FA;
            --accent: #22D3EE;
            --violet: #A78BFA;
            --text-main: #E5E7EB;
            --text-sub: #94A3B8;
            --text-weak: #64748B;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 20px 40px -20px rgba(0, 0, 0, 0.5);
            --glow-accent: 0 0 30px rgba(34, 211, 238, 0.15);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-deep);
            background-image: radial-gradient(ellipse 80% 60% at 20% 0%, rgba(59, 130, 246, 0.07) 0%, transparent 60%), radial-gradient(ellipse 60% 50% at 90% 30%, rgba(34, 211, 238, 0.04) 0%, transparent 50%);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(7, 12, 22, 0.75);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }
        .brand-logo {
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
        }
        .brand-ob {
            color: var(--accent);
            font-weight: 800;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            font-size: 0.95rem;
        }
        .main-nav a {
            color: var(--text-sub);
            font-weight: 500;
            padding: 6px 2px;
            position: relative;
            transition: color .2s ease;
        }
        .main-nav a:hover {
            color: #fff;
        }
        .main-nav a.active {
            color: #fff;
        }
        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            border-radius: 99px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            box-shadow: 0 0 8px rgba(34, 211, 238, 0.4);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-main);
            background: rgba(59, 130, 246, 0.15);
            border: 1px solid rgba(59, 130, 246, 0.35);
            transition: all .25s ease;
        }
        .nav-cta:hover {
            background: rgba(59, 130, 246, 0.25);
            border-color: var(--accent);
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: transparent;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
        }
        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all .25s ease;
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 76px;
            left: 0;
            right: 0;
            z-index: 99;
            background: rgba(7, 12, 22, 0.92);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            padding: 13px 12px;
            border-radius: 10px;
            font-size: 1rem;
            color: var(--text-sub);
            transition: all .2s ease;
        }
        .mobile-drawer a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .mobile-drawer a.active {
            color: var(--accent);
            background: rgba(34, 211, 238, 0.08);
        }

        /* ===== Hero ===== */
        .cat-hero {
            position: relative;
            min-height: 72vh;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            overflow: hidden;
        }
        .cat-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        }
        .cat-hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 12, 22, 0.3) 0%, rgba(7, 12, 22, 0.75) 55%, var(--bg-deep) 100%);
        }
        .cat-hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
        }
        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--text-sub);
            margin-bottom: 18px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 5px 14px;
            border-radius: 999px;
        }
        .breadcrumb a {
            color: var(--text-sub);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: var(--text-weak);
            font-size: 0.7rem;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.75rem;
            letter-spacing: 0.18em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.2);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 22px;
        }
        .cat-hero h1 {
            font-size: clamp(1.8rem, 4vw, 3.1rem);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .cat-hero h1 .grad-text {
            background: linear-gradient(92deg, #60A5FA, #22D3EE);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .cat-hero .lead {
            font-size: 1.08rem;
            color: var(--text-sub);
            max-width: 650px;
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: all .25s ease;
            border: 1px solid transparent;
        }
        .btn-primary {
            background: linear-gradient(120deg, #3B82F6, #22D3EE, #3B82F6);
            background-size: 200% 100%;
            color: #fff;
            box-shadow: 0 8px 24px rgba(34, 211, 238, 0.2);
        }
        .btn-primary:hover {
            background-position: 100% 0;
            box-shadow: 0 0 24px rgba(34, 211, 238, 0.35);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px) scale(0.98);
        }
        .btn-ghost {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-main);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn-ghost:hover {
            border-color: rgba(255, 255, 255, 0.4);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* ===== 分区 ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 48px;
            gap: 24px;
        }
        .section-header.centered {
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 8px;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--accent);
            background: rgba(34, 211, 238, 0.08);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(1.4rem, 2.2vw, 1.8rem);
            font-weight: 700;
            line-height: 1.4;
        }
        .section-sub {
            color: var(--text-sub);
            font-size: 0.95rem;
            max-width: 560px;
            margin-top: 8px;
        }

        /* ===== 两列内容卡 ===== */
        .two-col-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all .3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            border-color: rgba(34, 211, 238, 0.4);
            box-shadow: var(--shadow-card), var(--glow-accent);
            transform: translateY(-4px);
        }
        .guide-card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .guide-card:hover .guide-card-img img {
            transform: scale(1.03);
        }
        .guide-card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(7, 12, 22, 0.7) 100%);
        }
        .guide-card-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .guide-card-body p {
            color: var(--text-sub);
            font-size: 0.92rem;
            line-height: 1.75;
            margin-bottom: 20px;
        }
        .guide-list {
            margin-top: auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .guide-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-sub);
        }
        .guide-list li i {
            width: 20px;
            height: 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(34, 211, 238, 0.12);
            color: var(--accent);
            font-size: 0.7rem;
            flex-shrink: 0;
        }

        /* ===== 数据亮点 ===== */
        .stats-section {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            transition: all .25s ease;
        }
        .stat-item:hover {
            border-color: rgba(34, 211, 238, 0.3);
            box-shadow: var(--glow-accent);
        }
        .stat-num {
            font-family: "Roboto Condensed", "DIN Alternate", sans-serif;
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 0.88rem;
            color: var(--text-sub);
        }

        /* ===== 步骤区 ===== */
        .steps-section {
            background: rgba(7, 12, 22, 0.6);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .step-item {
            position: relative;
            padding: 32px 28px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            transition: all .25s ease;
            overflow: hidden;
        }
        .step-item::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: linear-gradient(180deg, var(--primary), var(--accent));
            opacity: 0.6;
            transition: opacity .25s ease;
        }
        .step-item:hover {
            border-color: rgba(34, 211, 238, 0.3);
            box-shadow: var(--glow-accent);
            transform: translateY(-3px);
        }
        .step-num {
            font-family: "Roboto Condensed", "DIN Alternate", sans-serif;
            font-size: 2.2rem;
            font-weight: 700;
            color: rgba(34, 211, 238, 0.35);
            line-height: 1;
            margin-bottom: 16px;
        }
        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .step-item p {
            color: var(--text-sub);
            font-size: 0.88rem;
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: border-color .3s ease;
        }
        .faq-item:first-child {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .faq-item.open {
            border-color: rgba(34, 211, 238, 0.2);
        }
        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 8px;
            font-size: 0.98rem;
            font-weight: 600;
            cursor: pointer;
            transition: color .2s ease;
        }
        .faq-q:hover {
            color: var(--accent);
        }
        .faq-q .icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.15);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
            transition: all .3s ease;
        }
        .faq-item.open .faq-q .icon {
            transform: rotate(45deg);
            border-color: var(--accent);
            color: var(--accent);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            padding: 0 8px;
        }
        .faq-a-inner {
            padding-bottom: 22px;
            color: var(--text-sub);
            font-size: 0.92rem;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            overflow: hidden;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat fixed;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(59, 130, 246, 0.15), transparent 70%),
                linear-gradient(180deg, rgba(7, 12, 22, 0.85) 0%, rgba(11, 18, 32, 0.9) 100%);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.35;
        }
        .cta-inner p {
            color: var(--text-sub);
            margin-bottom: 36px;
            font-size: 1rem;
            line-height: 1.8;
        }
        .cta-inner .btn-row {
            justify-content: center;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            padding: 72px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            background: rgba(7, 12, 22, 0.8);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 56px;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-brand .brand-ob {
            color: var(--accent);
        }
        .footer-desc {
            color: var(--text-sub);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-title {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 18px;
            color: var(--text-main);
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: var(--text-sub);
            font-size: 0.88rem;
            transition: all .2s ease;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
        }
        .footer-bottom p {
            color: var(--text-weak);
            font-size: 0.8rem;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .two-col-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 48px 0;
            }
            .cat-hero {
                min-height: auto;
                padding: 110px 0 56px;
            }
            .cat-hero .lead {
                font-size: 0.98rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                margin-bottom: 32px;
            }
            .cta-section {
                background-attachment: scroll;
                padding: 64px 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .btn-row {
                flex-direction: column;
                align-items: stretch;
            }
            .btn {
                justify-content: center;
            }
            .cat-hero h1 {
                font-size: 1.6rem;
            }
            .guide-card-body {
                padding: 20px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
    :root {
      --bg-deep: #070C16;
      --bg-base: #0B1220;
      --bg-elev: #101A2C;
      --primary: #3B82F6;
      --primary-light: #60A5FA;
      --accent: #22D3EE;
      --accent-soft: rgba(34, 211, 238, 0.15);
      --purple: #A78BFA;
      --text-main: #E5E7EB;
      --text-sub: #94A3B8;
      --text-weak: #64748B;
      --border-white: rgba(255, 255, 255, 0.08);
      --border-white-strong: rgba(255, 255, 255, 0.14);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-card: 0 20px 40px -20px rgba(0, 0, 0, 0.5);
      --glow-accent: 0 0 30px rgba(34, 211, 238, 0.15);
      --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
      --font-num: "Roboto Condensed", "DIN Alternate", sans-serif;
    }

    /* ===== Reset / Base ===== */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-main);
      background: var(--bg-deep);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    body::before {
      content: "";
      position: fixed;
      inset: 0;
      background:
        radial-gradient(ellipse 80% 50% at 20% 20%, rgba(59, 130, 246, 0.08), transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(34, 211, 238, 0.05), transparent 50%);
      pointer-events: none;
      z-index: 0;
    }
    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; transition: all .3s ease; }
    ul, ol { list-style: none; }
    button { font-family: inherit; cursor: pointer; background: none; border: none; color: inherit; }
    input, textarea { font-family: inherit; }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
      position: relative;
      z-index: 1;
    }

    /* ===== 按钮 ===== */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 999px;
      font-size: 0.95rem;
      font-weight: 600;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent), var(--primary));
      background-size: 200% 200%;
      border: none;
      box-shadow: 0 8px 24px rgba(59, 130, 246, 0.25);
      transition: all .35s ease;
      white-space: nowrap;
    }
    .btn-primary:hover {
      background-position: 100% 50%;
      box-shadow: 0 0 24px rgba(34, 211, 238, 0.35), 0 8px 28px rgba(59, 130, 246, 0.3);
      transform: translateY(-1px);
    }
    .btn-primary:active {
      transform: translateY(0) scale(0.98);
      box-shadow: 0 4px 16px rgba(34, 211, 238, 0.25);
    }
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 999px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.18);
      backdrop-filter: blur(8px);
      transition: all .35s ease;
      white-space: nowrap;
    }
    .btn-ghost:hover {
      border-color: rgba(255, 255, 255, 0.45);
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
    }
    .btn-ghost:active {
      transform: scale(0.98);
    }

    /* ===== 徽标 ===== */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 0.75rem;
      font-weight: 500;
      letter-spacing: 0.02em;
      background: rgba(59, 130, 246, 0.12);
      color: var(--primary-light);
      border: 1px solid rgba(59, 130, 246, 0.2);
    }
    .badge-hot {
      background: rgba(167, 139, 250, 0.12);
      color: var(--purple);
      border-color: rgba(167, 139, 250, 0.25);
    }
    .badge-accent {
      background: rgba(34, 211, 238, 0.1);
      color: var(--accent);
      border-color: rgba(34, 211, 238, 0.2);
    }

    /* ===== 玻璃卡片 ===== */
    .glass-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-white);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-card);
      transition: all .4s ease;
    }
    .glass-card:hover {
      border-color: rgba(34, 211, 238, 0.4);
      box-shadow: var(--shadow-card), var(--glow-accent);
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(7, 12, 22, 0.82);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 24px;
    }
    .site-logo {
      font-size: 1.35rem;
      font-weight: 700;
      letter-spacing: 0.01em;
      color: #fff;
      display: inline-flex;
      align-items: center;
      gap: 2px;
      flex-shrink: 0;
    }
    .site-logo .brand-ob {
      color: var(--accent);
      font-weight: 800;
      text-shadow: 0 0 18px rgba(34, 211, 238, 0.4);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 30px;
      margin: 0 auto;
    }
    .nav-links a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-sub);
      position: relative;
      padding: 8px 2px;
      transition: color .3s ease;
    }
    .nav-links a:hover {
      color: #fff;
    }
    .nav-links a.active {
      color: #fff;
    }
    .nav-links a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 2px;
      border-radius: 2px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      box-shadow: 0 0 12px rgba(34, 211, 238, 0.5);
    }
    .btn-nav {
      padding: 8px 20px;
      border-radius: 999px;
      font-size: 0.85rem;
      font-weight: 600;
      color: #fff;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.14);
      transition: all .3s ease;
      white-space: nowrap;
    }
    .btn-nav:hover {
      border-color: var(--accent);
      background: rgba(34, 211, 238, 0.12);
      box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
    }
    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, 0.12);
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      background: rgba(255, 255, 255, 0.04);
    }
    .menu-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      background: var(--text-main);
      border-radius: 2px;
      transition: all .3s ease;
    }
    .menu-toggle.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .menu-toggle.open span:nth-child(2) {
      opacity: 0;
    }
    .menu-toggle.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(7, 12, 22, 0.96);
      backdrop-filter: blur(30px);
      -webkit-backdrop-filter: blur(30px);
      z-index: 99;
      padding: 32px 24px;
      flex-direction: column;
      gap: 8px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .mobile-drawer.open {
      display: flex;
    }
    .mobile-drawer a {
      display: block;
      padding: 16px 20px;
      font-size: 1rem;
      font-weight: 500;
      color: var(--text-sub);
      border-radius: var(--radius-md);
      transition: all .3s ease;
    }
    .mobile-drawer a:hover,
    .mobile-drawer a.active {
      color: #fff;
      background: rgba(255, 255, 255, 0.05);
    }
    .mobile-drawer a.active {
      border-left: 3px solid var(--accent);
    }

    /* ===== Hero ===== */
    .hero {
      position: relative;
      min-height: 92vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 120px 24px 80px;
      overflow: hidden;
    }
    .hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      z-index: 0;
    }
    .hero-bg::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(7, 12, 22, 0.7) 0%, rgba(7, 12, 22, 0.4) 40%, rgba(7, 12, 22, 0.92) 100%),
        radial-gradient(ellipse 60% 50% at 50% 60%, rgba(59, 130, 246, 0.15), transparent);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 860px;
    }
    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.78rem;
      letter-spacing: 0.25em;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 20px;
      padding: 6px 16px;
      border-radius: 999px;
      background: rgba(34, 211, 238, 0.08);
      border: 1px solid rgba(34, 211, 238, 0.18);
    }
    .hero-title {
      font-size: clamp(1.8rem, 4vw, 3.2rem);
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #fff;
      letter-spacing: 0.01em;
    }
    .hero-title .grad-text {
      background: linear-gradient(120deg, #fff, var(--accent));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .hero-subtitle {
      font-size: 1.1rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin: 0 auto 36px;
      max-width: 620px;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .hero-scroll {
      position: absolute;
      bottom: 32px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 2;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 6px;
      color: var(--text-weak);
      font-size: 0.75rem;
      letter-spacing: 0.15em;
    }
    .hero-scroll i {
      animation: scrollDown 2s ease-in-out infinite;
    }
    @keyframes scrollDown {
      0%, 100% { transform: translateY(0); opacity: 0.5; }
      50% { transform: translateY(8px); opacity: 1; }
    }

    /* ===== 面包屑 ===== */
    .breadcrumb {
      padding: 92px 0 0;
      font-size: 0.82rem;
      color: var(--text-weak);
    }
    .breadcrumb a {
      color: var(--text-sub);
    }
    .breadcrumb a:hover {
      color: var(--accent);
    }
    .breadcrumb .sep {
      margin: 0 8px;
      color: var(--text-weak);
    }
    .breadcrumb .current {
      color: var(--text-main);
    }

    /* ===== 页面主体布局 ===== */
    .page-layout {
      display: grid;
      grid-template-columns: 232px 1fr;
      gap: 40px;
      padding: 40px 24px 80px;
      align-items: start;
    }
    .category-dir {
      position: sticky;
      top: 96px;
      padding: 24px 0;
    }
    .dir-head {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.8rem;
      color: var(--text-weak);
      letter-spacing: 0.12em;
      margin-bottom: 16px;
      padding: 0 16px;
    }
    .dir-list {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }
    .dir-link {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 16px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-sub);
      border-radius: 10px;
      border-left: 2px solid transparent;
      transition: all .3s ease;
    }
    .dir-link:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.04);
    }
    .dir-link.active {
      color: var(--accent);
      border-left-color: var(--accent);
      background: rgba(34, 211, 238, 0.06);
    }
    .dir-link i {
      width: 18px;
      text-align: center;
      font-size: 0.8rem;
      color: var(--text-weak);
    }
    .dir-card {
      margin-top: 20px;
      padding: 16px;
      font-size: 0.82rem;
      color: var(--text-sub);
    }
    .dir-card .update-time {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-top: 8px;
      color: var(--accent);
      font-family: var(--font-num);
    }

    /* ===== Section 通用 ===== */
    .section {
      margin-bottom: 56px;
      scroll-margin-top: 96px;
      animation: fadeUp .6s ease both;
    }
    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 24px;
    }
    .section-title {
      font-size: clamp(1.4rem, 2.2vw, 1.8rem);
      font-weight: 700;
      color: #fff;
      line-height: 1.3;
      position: relative;
      padding-left: 16px;
    }
    .section-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: 6px;
      bottom: 6px;
      width: 4px;
      border-radius: 4px;
      background: linear-gradient(180deg, var(--primary), var(--accent));
      box-shadow: 0 0 12px rgba(34, 211, 238, 0.4);
    }
    .section-more {
      font-size: 0.85rem;
      color: var(--text-sub);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: all .3s ease;
    }
    .section-more:hover {
      color: var(--accent);
      gap: 10px;
    }

    /* ===== 热播总览 ===== */
    .data-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-bottom: 24px;
    }
    .data-card {
      padding: 24px 20px;
      text-align: center;
    }
    .data-card .data-value {
      font-family: var(--font-num);
      font-size: 2rem;
      font-weight: 700;
      color: #fff;
      line-height: 1.2;
    }
    .data-card .data-value.accent {
      color: var(--accent);
    }
    .data-card .data-value.primary {
      color: var(--primary-light);
    }
    .data-card .data-label {
      margin-top: 6px;
      font-size: 0.82rem;
      color: var(--text-sub);
    }
    .overview-feature {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      min-height: 280px;
      display: flex;
      align-items: flex-end;
      padding: 32px;
      background-size: cover;
      background-position: center;
      border: 1px solid var(--border-white);
    }
    .overview-feature::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 30%, rgba(7, 12, 22, 0.92) 100%);
    }
    .overview-feature .feature-content {
      position: relative;
      z-index: 2;
      max-width: 480px;
    }
    .overview-feature h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: #fff;
      margin: 8px 0 6px;
    }
    .overview-feature p {
      font-size: 0.9rem;
      color: var(--text-sub);
    }

    /* ===== 榜单 ===== */
    .ranking-list {
      display: flex;
      flex-direction: column;
      gap: 0;
    }
    .ranking-item {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 18px 16px;
      border-radius: var(--radius-md);
      transition: background .3s ease;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .ranking-item:last-child {
      border-bottom: none;
    }
    .ranking-item:hover {
      background: rgba(255, 255, 255, 0.04);
    }
    .rank-num {
      font-family: var(--font-num);
      font-size: 1.8rem;
      font-weight: 700;
      color: rgba(255, 255, 255, 0.15);
      width: 44px;
      text-align: center;
      flex-shrink: 0;
      line-height: 1;
      transition: color .3s ease;
    }
    .ranking-item:nth-child(1) .rank-num {
      color: rgba(167, 139, 250, 0.8);
    }
    .ranking-item:nth-child(2) .rank-num {
      color: rgba(59, 130, 246, 0.7);
    }
    .ranking-item:nth-child(3) .rank-num {
      color: rgba(34, 211, 238, 0.7);
    }
    .ranking-item:hover .rank-num {
      color: var(--accent);
    }
    .rank-cover {
      width: 60px;
      height: 84px;
      object-fit: cover;
      border-radius: 8px;
      border: 1px solid var(--border-white);
      flex-shrink: 0;
      background: var(--bg-elev);
    }
    .rank-info {
      flex: 1;
      min-width: 0;
    }
    .rank-info h3 {
      font-size: 1rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 4px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .rank-info .rank-tags {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }
    .rank-info .rank-type {
      font-size: 0.78rem;
      color: var(--text-weak);
    }
    .rank-score {
      display: flex;
      align-items: center;
      gap: 4px;
      font-family: var(--font-num);
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--accent);
      flex-shrink: 0;
    }
    .rank-desc {
      font-size: 0.8rem;
      color: var(--text-weak);
      flex-shrink: 0;
      max-width: 160px;
      text-align: right;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
    }

    /* ===== 类型精选 ===== */
    .type-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .type-card {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      min-height: 200px;
      background-size: cover;
      background-position: center;
      border: 1px solid var(--border-white);
      transition: all .4s ease;
    }
    .type-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(7, 12, 22, 0.2) 0%, rgba(7, 12, 22, 0.88) 100%);
    }
    .type-card:hover::before {
      background: linear-gradient(180deg, rgba(7, 12, 22, 0.1) 0%, rgba(7, 12, 22, 0.94) 100%);
    }
    .type-card-content {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      padding: 20px;
    }
    .type-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
    }
    .type-card p {
      font-size: 0.82rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    /* ===== 新片速递 ===== */
    .release-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .release-card {
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-elev);
      border: 1px solid var(--border-white);
      transition: all .4s ease;
    }
    .release-card:hover {
      border-color: rgba(34, 211, 238, 0.4);
      box-shadow: var(--glow-accent);
      transform: translateY(-4px);
    }
    .release-card .release-cover {
      width: 100%;
      height: 160px;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .release-card:hover .release-cover {
      transform: scale(1.04);
    }
    .release-card .release-body {
      padding: 16px;
    }
    .release-card h3 {
      font-size: 0.95rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 4px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .release-card p {
      font-size: 0.8rem;
      color: var(--text-weak);
    }

    /* ===== FAQ ===== */
    .faq-section {
      padding: 80px 24px;
      background: linear-gradient(180deg, transparent, rgba(11, 18, 32, 0.6), transparent);
    }
    .faq-list {
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
    }
    .faq-item {
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 0;
      overflow: hidden;
    }
    .faq-item:first-child {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 22px 8px;
      font-size: 0.98rem;
      font-weight: 600;
      color: #fff;
      width: 100%;
      text-align: left;
      transition: all .3s ease;
      position: relative;
    }
    .faq-question::before {
      content: "";
      position: absolute;
      left: -8px;
      top: 50%;
      transform: translateY(-50%);
      width: 3px;
      height: 0;
      border-radius: 3px;
      background: var(--accent);
      transition: height .3s ease;
    }
    .faq-item.open .faq-question::before {
      height: 24px;
    }
    .faq-question:hover {
      color: var(--accent);
    }
    .faq-question i {
      color: var(--text-weak);
      transition: transform .3s ease;
      flex-shrink: 0;
    }
    .faq-item.open .faq-question i {
      transform: rotate(180deg);
      color: var(--accent);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .4s ease, padding .3s ease;
      padding: 0 8px;
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.8;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 0 8px 20px;
    }

    /* ===== CTA ===== */
    .cta-section {
      position: relative;
      padding: 100px 24px;
      text-align: center;
      overflow: hidden;
    }
    .cta-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
      z-index: 0;
    }
    .cta-bg::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(7, 12, 22, 0.9), rgba(7, 12, 22, 0.82));
      backdrop-filter: blur(2px);
    }
    .cta-content {
      position: relative;
      z-index: 2;
      max-width: 660px;
      margin: 0 auto;
    }
    .cta-title {
      font-size: clamp(1.6rem, 3vw, 2.2rem);
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    .cta-subtitle {
      font-size: 1rem;
      color: var(--text-sub);
      margin-bottom: 32px;
      line-height: 1.7;
    }
    .cta-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* ===== Footer ===== */
    .site-footer {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      background: var(--bg-deep);
      padding: 64px 0 24px;
      position: relative;
      z-index: 1;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 1fr 0.8fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand {
      font-size: 1.3rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }
    .footer-brand .brand-ob {
      color: var(--accent);
    }
    .footer-desc {
      font-size: 0.85rem;
      color: var(--text-weak);
      line-height: 1.7;
      max-width: 320px;
    }
    .footer-title {
      font-size: 0.95rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 0.85rem;
      color: var(--text-sub);
      transition: all .3s ease;
    }
    .footer-links a:hover {
      color: var(--accent);
      padding-left: 4px;
    }
    .footer-bottom {
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      text-align: center;
      font-size: 0.78rem;
      color: var(--text-weak);
      line-height: 1.8;
    }

    /* ===== 动画 ===== */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .data-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .type-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .release-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .nav-actions .btn-nav {
        display: none;
      }
      .menu-toggle {
        display: flex;
      }
      .page-layout {
        grid-template-columns: 1fr;
        padding: 32px 20px 60px;
      }
      .category-dir {
        position: static;
        padding: 0;
        overflow-x: auto;
        margin-bottom: 24px;
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
      }
      .dir-head {
        display: none;
      }
      .dir-list {
        flex-direction: row;
        gap: 8px;
        flex-wrap: wrap;
      }
      .dir-link {
        padding: 8px 14px;
        font-size: 0.82rem;
        border-left: none;
        border-bottom: 2px solid transparent;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.04);
      }
      .dir-link.active {
        border-bottom-color: var(--accent);
        border-left: none;
      }
      .dir-card {
        display: none;
      }
      .hero {
        min-height: 80vh;
        padding: 100px 20px 60px;
      }
      .hero-title {
        font-size: 1.8rem;
      }
      .hero-subtitle {
        font-size: 0.95rem;
      }
      .section-title {
        font-size: 1.25rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
    }
    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }
      .data-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
      }
      .data-card {
        padding: 16px 12px;
      }
      .data-card .data-value {
        font-size: 1.4rem;
      }
      .ranking-item {
        flex-wrap: wrap;
        gap: 10px;
        padding: 14px 8px;
      }
      .rank-cover {
        width: 48px;
        height: 68px;
      }
      .rank-num {
        font-size: 1.4rem;
        width: 32px;
      }
      .rank-desc {
        display: none;
      }
      .type-grid,
      .release-grid {
        grid-template-columns: 1fr;
      }
      .hero-actions,
      .cta-actions {
        flex-direction: column;
        width: 100%;
      }
      .btn-primary,
      .btn-ghost {
        width: 100%;
        justify-content: center;
      }
      .breadcrumb {
        padding: 80px 16px 0;
      }
    }

/* roulang page: category3 */
:root {
      --bg-1: #070C16;
      --bg-2: #0B1220;
      --primary: #3B82F6;
      --primary-light: #60A5FA;
      --accent: #22D3EE;
      --violet: #A78BFA;
      --text-1: #E5E7EB;
      --text-2: #94A3B8;
      --text-3: #64748B;
      --line: rgba(255, 255, 255, 0.08);
      --glass-bg: rgba(255, 255, 255, 0.04);
      --glass-border: rgba(255, 255, 255, 0.08);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.5);
      --container: 1280px;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
      --font-num: "Roboto Condensed", "DIN Alternate", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg-1);
      color: var(--text-1);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.3s ease;
    }

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

    .container {
      width: 100%;
      max-width: var(--container);
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }

    @media (min-width: 768px) {
      .container {
        padding-left: 2rem;
        padding-right: 2rem;
      }
    }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(7, 12, 22, 0.82);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line);
    }

    .brand-logo {
      font-size: 1.35rem;
      font-weight: 700;
      letter-spacing: 0.02em;
      display: inline-flex;
      align-items: center;
      gap: 0.2rem;
      white-space: nowrap;
    }

    .brand-logo .ob {
      color: var(--accent);
      text-shadow: 0 0 18px rgba(34, 211, 238, 0.35);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 2.2rem;
    }

    .main-nav a {
      font-size: 0.9rem;
      color: var(--text-2);
      position: relative;
      padding: 0.35rem 0;
      white-space: nowrap;
      transition: color 0.25s ease;
    }

    .main-nav a:hover {
      color: var(--text-1);
    }

    .main-nav a.active {
      color: var(--text-1);
      font-weight: 600;
    }

    .main-nav a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 2px;
      border-radius: 2px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      box-shadow: 0 0 12px rgba(34, 211, 238, 0.4);
    }

    .nav-cta {
      padding: 0.4rem 1.1rem;
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 999px;
      font-size: 0.85rem;
      color: var(--text-1);
      transition: all 0.3s ease;
    }

    .nav-cta:hover {
      border-color: var(--accent);
      color: var(--accent);
      box-shadow: 0 0 20px rgba(34, 211, 238, 0.15);
    }

    .hamburger {
      display: none;
      background: none;
      border: none;
      color: var(--text-1);
      font-size: 1.4rem;
      cursor: pointer;
      padding: 0.25rem 0.5rem;
    }

    .mobile-drawer {
      display: none;
      position: fixed;
      top: 0;
      right: 0;
      bottom: 0;
      width: 80%;
      max-width: 320px;
      background: rgba(7, 12, 22, 0.95);
      backdrop-filter: blur(24px);
      z-index: 100;
      padding: 2rem;
      border-left: 1px solid var(--line);
      transform: translateX(100%);
      transition: transform 0.35s ease;
      overflow-y: auto;
    }

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

    .mobile-drawer a {
      display: block;
      padding: 0.8rem 0;
      font-size: 1.05rem;
      color: var(--text-2);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .mobile-drawer a.active {
      color: var(--accent);
    }

    .drawer-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.5);
      z-index: 90;
      backdrop-filter: blur(2px);
    }

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

    /* ===== Buttons ===== */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.85rem 2.2rem;
      border-radius: 999px;
      font-size: 0.95rem;
      font-weight: 600;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent), var(--primary));
      background-size: 200% 200%;
      box-shadow: 0 4px 24px rgba(59, 130, 246, 0.25);
      border: none;
      cursor: pointer;
      transition: all 0.35s ease;
    }

    .btn-primary:hover {
      box-shadow: 0 4px 32px rgba(34, 211, 238, 0.35);
      transform: translateY(-2px);
    }

    .btn-primary:active {
      transform: translateY(0) scale(0.98);
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.85rem 2.2rem;
      border-radius: 999px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-1);
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.2);
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .btn-ghost:hover {
      border-color: var(--accent);
      color: var(--accent);
      box-shadow: 0 0 20px rgba(34, 211, 238, 0.1);
    }

    /* ===== Hero ===== */
    .hero {
      position: relative;
      min-height: 70vh;
      display: flex;
      align-items: center;
      justify-content: center;
      background-size: cover;
      background-position: center;
      overflow: hidden;
    }

    .hero-mask {
      position: absolute;
      inset: 0;
      background: linear-gradient(
        180deg,
        rgba(7, 12, 22, 0.85) 0%,
        rgba(7, 12, 22, 0.6) 50%,
        rgba(7, 12, 22, 0.95) 100%
      );
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      padding: 3rem 1rem;
      max-width: 760px;
    }

    .deco-text {
      font-family: var(--font-num);
      font-size: 0.75rem;
      letter-spacing: 0.45em;
      text-transform: uppercase;
      color: rgba(148, 163, 184, 0.7);
      margin-bottom: 1.2rem;
      display: block;
    }

    .hero h1 {
      font-size: clamp(1.8rem, 4vw, 3rem);
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 1.2rem;
      text-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    }

    .hero-sub {
      font-size: 1.05rem;
      color: var(--text-2);
      line-height: 1.7;
      margin-bottom: 2rem;
    }

    .scroll-indicator {
      position: absolute;
      bottom: 1.5rem;
      left: 50%;
      transform: translateX(-50%);
      color: var(--text-3);
      font-size: 1.2rem;
      animation: pulse-down 2s infinite;
    }

    @keyframes pulse-down {
      0%, 100% {
        opacity: 0.6;
        transform: translateX(-50%) translateY(0);
      }
      50% {
        opacity: 1;
        transform: translateX(-50%) translateY(6px);
      }
    }

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

    @media (min-width: 768px) {
      .section {
        padding: 6rem 0;
      }
    }

    .section-alt {
      background: var(--bg-2);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .section-title-wrap {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      margin-bottom: 2.5rem;
      flex-wrap: wrap;
      gap: 1rem;
    }

    .section-title {
      font-size: clamp(1.4rem, 2.2vw, 1.8rem);
      font-weight: 700;
      line-height: 1.3;
      position: relative;
      padding-bottom: 0.6rem;
    }

    .section-title::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 40px;
      height: 2px;
      border-radius: 2px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }

    .section-link {
      font-size: 0.85rem;
      color: var(--text-2);
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      transition: color 0.25s ease;
    }

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

    /* ===== Cards ===== */
    .glass-card {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow);
      transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
    }

    .glass-card:hover {
      border-color: rgba(34, 211, 238, 0.4);
      box-shadow: 0 0 30px rgba(34, 211, 238, 0.12);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 0.3rem;
      padding: 0.25rem 0.8rem;
      border-radius: 999px;
      font-size: 0.75rem;
      background: rgba(59, 130, 246, 0.15);
      color: var(--primary-light);
      border: 1px solid rgba(59, 130, 246, 0.2);
    }

    .badge-violet {
      background: rgba(167, 139, 250, 0.12);
      color: var(--violet);
      border-color: rgba(167, 139, 250, 0.2);
    }

    .badge-cyan {
      background: rgba(34, 211, 238, 0.1);
      color: var(--accent);
      border-color: rgba(34, 211, 238, 0.2);
    }

    /* ===== Dinamic list ===== */
    .dynamic-item {
      display: flex;
      align-items: flex-start;
      gap: 1rem;
      padding: 1rem 1.25rem;
      border-left: 2px solid transparent;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      background: rgba(255, 255, 255, 0.02);
      transition: all 0.3s ease;
    }

    .dynamic-item:hover {
      background: rgba(255, 255, 255, 0.05);
      border-left-color: var(--accent);
    }

    .dynamic-item .date {
      font-family: var(--font-num);
      font-size: 0.8rem;
      color: var(--text-3);
      white-space: nowrap;
      margin-top: 0.15rem;
    }

    .dynamic-item .title {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-1);
      line-height: 1.5;
    }

    .dynamic-item p {
      font-size: 0.82rem;
      color: var(--text-2);
      margin-top: 0.2rem;
      line-height: 1.5;
    }

    /* ===== Timeline / Wide list ===== */
    .timeline-item {
      display: flex;
      flex-direction: column;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: rgba(255, 255, 255, 0.025);
      transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .timeline-item:hover {
      border-color: rgba(34, 211, 238, 0.35);
      box-shadow: 0 0 24px rgba(34, 211, 238, 0.08);
    }

    @media (min-width: 768px) {
      .timeline-item {
        flex-direction: row;
        align-items: stretch;
      }
      .timeline-thumb {
        width: 260px;
        min-width: 260px;
        min-height: 160px;
      }
    }

    .timeline-thumb {
      overflow: hidden;
      background: rgba(255, 255, 255, 0.04);
    }

    .timeline-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.45s ease;
    }

    .timeline-item:hover .timeline-thumb img {
      transform: scale(1.04);
    }

    .timeline-body {
      padding: 1.2rem 1.4rem;
      flex: 1;
    }

    .timeline-body h3 {
      font-size: 1.05rem;
      font-weight: 600;
      margin-bottom: 0.35rem;
    }

    .timeline-body .desc {
      font-size: 0.87rem;
      color: var(--text-2);
      line-height: 1.7;
    }

    .timeline-meta {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-top: 0.7rem;
      font-family: var(--font-num);
      font-size: 0.78rem;
      color: var(--text-3);
    }

    /* ===== FAQ ===== */
    .faq-item {
      border-bottom: 1px solid var(--line);
      transition: background 0.2s ease;
    }

    .faq-item:first-child {
      border-top: 1px solid var(--line);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1.2rem 1rem;
      cursor: pointer;
      font-size: 0.98rem;
      font-weight: 600;
      color: var(--text-1);
      transition: color 0.2s ease;
    }

    .faq-question .faq-icon {
      transition: transform 0.3s ease;
      font-size: 0.85rem;
      color: var(--text-3);
    }

    .faq-item.open .faq-icon {
      transform: rotate(180deg);
      color: var(--accent);
    }

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

    .faq-answer-inner {
      padding: 0 1rem 1.2rem 1rem;
      font-size: 0.88rem;
      color: var(--text-2);
      line-height: 1.75;
    }

    .faq-item.open .faq-question {
      color: var(--accent);
    }

    .faq-item.open {
      border-left: 2px solid var(--accent);
    }

    /* ===== CTA ===== */
    .cta-section {
      position: relative;
      overflow: hidden;
      border-radius: 24px;
      border: 1px solid var(--line);
    }

    .cta-section .overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(
        120deg,
        rgba(7, 12, 22, 0.92) 0%,
        rgba(11, 18, 32, 0.78) 100%
      );
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--bg-2);
      border-top: 1px solid var(--line);
      padding-top: 3.5rem;
      padding-bottom: 2rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(1, 1fr);
      gap: 2.5rem;
      padding-bottom: 3rem;
    }

    @media (min-width: 768px) {
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (min-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
      }
    }

    .footer-brand {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-1);
      margin-bottom: 0.8rem;
    }

    .footer-desc {
      font-size: 0.85rem;
      color: var(--text-3);
      line-height: 1.7;
      max-width: 26rem;
    }

    .footer-title {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-1);
      margin-bottom: 1rem;
      letter-spacing: 0.05em;
      text-transform: uppercase;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.55rem;
    }

    .footer-links a {
      font-size: 0.85rem;
      color: var(--text-2);
      transition: color 0.2s ease, padding-left 0.2s ease;
    }

    .footer-links a:hover {
      color: var(--accent);
      padding-left: 4px;
    }

    .footer-bottom {
      border-top: 1px solid var(--line);
      padding-top: 1.6rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 0.8rem;
    }

    .footer-bottom p {
      font-size: 0.8rem;
      color: var(--text-3);
    }

    /* ===== Forms ===== */
    .form-input {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: var(--radius-sm);
      padding: 0.75rem 1rem;
      color: var(--text-1);
      font-size: 0.9rem;
      outline: none;
      width: 100%;
      transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .form-input::placeholder {
      color: var(--text-3);
    }

    .form-input:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.12);
    }

    /* ===== Animations ===== */
    @keyframes fadeUp {
      from {
        opacity: 0;
        transform: translateY(20px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .fade-up {
      animation: fadeUp 0.5s ease forwards;
    }

    /* ===== Media ===== */
    @media (max-width: 640px) {
      .hero {
        min-height: 60vh;
      }
      .hero-sub {
        font-size: 0.95rem;
      }
      .btn-primary,
      .btn-ghost {
        padding: 0.75rem 1.6rem;
        font-size: 0.9rem;
      }
      .section-title-wrap {
        margin-bottom: 1.8rem;
      }
    }

    @media (max-width: 480px) {
      .hero h1 {
        font-size: 1.6rem;
      }
    }

/* roulang page: article */
:root {
            --bg-deep: #070C16;
            --bg-body: #0B1220;
            --surface: rgba(255, 255, 255, 0.04);
            --surface-2: rgba(255, 255, 255, 0.06);
            --line: rgba(255, 255, 255, 0.1);
            --text-main: #E5E7EB;
            --text-sub: #94A3B8;
            --text-muted: #64748B;
            --blue: #3B82F6;
            --blue-light: #60A5FA;
            --cyan: #22D3EE;
            --violet: #A78BFA;
            --radius-card: 18px;
            --radius-soft: 12px;
            --glow: 0 0 30px rgba(34, 211, 238, 0.15);
            --shadow-lg: 0 24px 48px -20px rgba(0, 0, 0, 0.55);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
            --font-num: "Roboto Condensed", "DIN Alternate", system-ui, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html,
        body {
            margin: 0;
            padding: 0;
        }

        body {
            background:
                radial-gradient(ellipse 60% 42% at 18% 0%, rgba(59, 130, 246, 0.12), transparent 60%),
                radial-gradient(ellipse 48% 36% at 88% 16%, rgba(34, 211, 238, 0.07), transparent 60%),
                var(--bg-body);
            color: var(--text-main);
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font: inherit;
        }

        :focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(7, 12, 22, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            height: 78px;
            gap: 2.4rem;
        }

        .brand-logo {
            display: inline-flex;
            align-items: baseline;
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .brand-ob {
            color: var(--cyan);
            font-weight: 800;
            text-shadow: 0 0 18px rgba(34, 211, 238, 0.35);
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            margin-left: 0.5rem;
        }

        .desktop-nav a {
            position: relative;
            padding: 0.55rem 0.15rem;
            font-size: 0.95rem;
            color: var(--text-sub);
            transition: color 0.3s ease;
            white-space: nowrap;
        }

        .desktop-nav a:hover {
            color: #fff;
        }

        .desktop-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--blue), var(--cyan));
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.45);
            transition: width 0.35s ease;
        }

        .desktop-nav a.active,
        .desktop-nav a[aria-current="page"] {
            color: #fff;
        }

        .desktop-nav a.active::after,
        .desktop-nav a[aria-current="page"]::after {
            width: 100%;
        }

        .nav-entry {
            margin-left: auto;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.25rem;
            border-radius: 999px;
            border: 1px solid rgba(34, 211, 238, 0.35);
            color: #e6fbff;
            font-size: 0.9rem;
            font-weight: 600;
            background: rgba(34, 211, 238, 0.06);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .nav-entry:hover {
            border-color: var(--cyan);
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.18);
            transform: translateY(-1px);
        }

        .nav-entry .arrow {
            transition: transform 0.3s ease;
        }

        .nav-entry:hover .arrow {
            transform: translateX(4px);
        }

        .mobile-burger {
            display: none;
            margin-left: auto;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
            padding: 0 11px;
            cursor: pointer;
        }

        .mobile-burger span {
            display: block;
            height: 2px;
            width: 100%;
            border-radius: 2px;
            background: #dbe5ef;
            transition: all 0.3s ease;
        }

        .mobile-burger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-burger.open span:nth-child(2) {
            opacity: 0;
        }

        .mobile-burger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            position: sticky;
            top: 78px;
            z-index: 55;
            background: rgba(10, 16, 28, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6);
        }

        .mobile-drawer.open {
            display: block;
        }

        .mobile-drawer-inner {
            padding: 1.25rem 1.5rem 1.75rem;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }

        .mobile-drawer .drawer-label {
            font-size: 0.72rem;
            letter-spacing: 0.3em;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
            padding-left: 0.6rem;
        }

        .mobile-drawer a {
            display: flex;
            align-items: center;
            padding: 0.85rem 0.6rem;
            border-radius: 10px;
            color: var(--text-sub);
            font-size: 1rem;
            font-weight: 500;
            transition: all 0.2s ease;
            min-height: 44px;
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
        }

        .mobile-drawer .drawer-separator {
            height: 1px;
            background: rgba(255, 255, 255, 0.08);
            margin: 0.6rem 0;
        }

        .article-hero {
            position: relative;
            padding: 4.5rem 0 3.4rem;
            background:
                linear-gradient(180deg, rgba(7, 12, 22, 0.55), rgba(7, 12, 22, 0.88) 70%, var(--bg-body) 100%),
                url('/assets/images/backpic/back-2.png') center 26% / cover no-repeat;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .article-hero-inner {
            max-width: 1120px;
            margin: 0 auto;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.55rem;
            font-size: 0.84rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .breadcrumb a {
            color: #93a9bd;
            transition: color 0.2s ease;
        }

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

        .breadcrumb .divider {
            color: rgba(255, 255, 255, 0.25);
        }

        .article-kicker {
            display: inline-flex;
            margin-bottom: 1rem;
            padding: 0.32rem 0.85rem;
            border-radius: 999px;
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.3);
            color: #a5f3fc;
            font-size: 0.8rem;
            letter-spacing: 0.1em;
            font-weight: 600;
        }

        .article-title {
            color: #f1f5f9;
            font-size: clamp(1.8rem, 3vw, 2.8rem);
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin: 0 0 1.25rem;
            max-width: 900px;
            text-wrap: balance;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 1.8rem;
            color: var(--text-sub);
            font-size: 0.85rem;
            margin-top: 0.35rem;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
        }

        .article-meta .meta-time {
            color: var(--cyan);
            font-family: var(--font-num);
            letter-spacing: 0.03em;
        }

        .article-main-wrap {
            width: 100%;
            max-width: 1180px;
            margin: 0 auto;
            padding: 3.2rem 1.5rem 0;
        }

        .article-reading {
            max-width: 760px;
            margin: 0 auto;
            position: relative;
        }

        .article-updated-line {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
            padding-bottom: 1.4rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.4rem;
        }

        .article-content {
            font-size: 1rem;
            line-height: 1.9;
            color: #d9e2ec;
            overflow-wrap: break-word;
        }

        .article-content p {
            margin: 0 0 1.4em;
        }

        .article-content h2 {
            color: #f1f5f9;
            font-size: 1.6rem;
            line-height: 1.35;
            margin: 2.2em 0 0.75em;
            padding-bottom: 0.45rem;
            position: relative;
        }

        .article-content h2::before {
            content: "";
            display: inline-block;
            width: 4px;
            height: 1.05em;
            margin-right: 0.6rem;
            vertical-align: -0.14em;
            border-radius: 4px;
            background: linear-gradient(180deg, var(--blue), var(--cyan));
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.5);
        }

        .article-content h3 {
            color: #e5edf5;
            font-size: 1.18rem;
            margin: 1.8em 0 0.6em;
            font-weight: 650;
        }

        .article-content blockquote {
            margin: 1.8em 0;
            padding: 0.9rem 1.2rem;
            border-left: 3px solid var(--cyan);
            background: rgba(34, 211, 238, 0.06);
            border-radius: 0 12px 12px 0;
            color: #c3d6e4;
        }

        .article-content img {
            border-radius: 14px;
            margin: 1.8em 0;
            box-shadow: var(--shadow-lg);
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.4em;
            padding-left: 1.3rem;
        }

        .article-content li {
            margin-bottom: 0.35rem;
        }

        .article-content table {
            width: 100%;
            margin: 1.6em 0;
            border-collapse: collapse;
            max-width: 100%;
            overflow: hidden;
            border-radius: 12px;
        }

        .article-content th,
        .article-content td {
            padding: 0.7rem 0.85rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
        }

        .article-content th {
            background: rgba(255, 255, 255, 0.05);
            color: #e9eef3;
            font-weight: 600;
        }

        .article-content a {
            color: #7dd3fc;
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color 0.2s;
        }

        .article-content a:hover {
            color: var(--cyan);
        }

        .article-nav-links {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            margin-top: 3.2rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            flex-wrap: wrap;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            color: #b9c6d2;
            font-size: 0.94rem;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 999px;
            padding: 0.65rem 1.2rem;
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: all 0.25s ease;
        }

        .back-link:hover {
            border-color: rgba(34, 211, 238, 0.5);
            color: var(--cyan);
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.14);
        }

        .related-section {
            max-width: 1280px;
            margin: 5rem auto 0;
            padding: 0 1.5rem 5rem;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.8rem;
        }

        .section-title {
            font-size: clamp(1.35rem, 2vw, 1.85rem);
            font-weight: 700;
            letter-spacing: -0.01em;
            color: #eef2f5;
            margin: 0;
        }

        .section-lead {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .grid-related {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.4rem;
        }

        .category-panel {
            display: block;
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.09);
            transition: all 0.35s ease;
        }

        .category-panel:hover {
            border-color: rgba(34, 211, 238, 0.4);
            box-shadow: 0 0 26px rgba(34, 211, 238, 0.12);
            transform: translateY(-3px);
        }

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

        .category-panel-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .category-panel:hover .category-panel-thumb img {
            transform: scale(1.04);
        }

        .category-panel-body {
            padding: 1rem 1rem 1.2rem;
        }

        .category-panel-body h3 {
            color: #e6eef5;
            font-size: 1.06rem;
            line-height: 1.5;
            margin: 0 0 0.45rem;
            font-weight: 650;
        }

        .category-panel-meta {
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        .btn-primary,
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.6rem;
            min-height: 46px;
            padding: 0.8rem 1.75rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.3s ease;
        }

        .btn-primary {
            color: #fff;
            background: linear-gradient(135deg, var(--blue), var(--cyan));
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .btn-primary:hover {
            box-shadow: 0 0 26px rgba(34, 211, 238, 0.38);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-ghost {
            color: #d5e3ed;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.03);
        }

        .btn-ghost:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.05);
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.12);
        }

        .site-footer {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            background: var(--bg-deep);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2.5rem;
            padding: 4rem 0 2.4rem;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #edf3f8;
            margin-bottom: 0.7rem;
        }

        .brand-ob {
            color: var(--cyan);
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            max-width: 330px;
            margin-top: 0.25rem;
        }

        .footer-title {
            color: #dbe5ed;
            font-size: 0.95rem;
            font-weight: 650;
            margin: 0 0 1rem;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.88rem;
            display: inline-flex;
            transition: color 0.2s ease, padding-left 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--cyan);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding: 1.3rem 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .footer-bottom a {
            color: var(--text-sub);
            transition: color 0.2s;
        }

        .footer-bottom a:hover {
            color: var(--cyan);
        }

        .empty-state {
            min-height: 260px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 3rem 1rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.09);
            border-radius: 20px;
        }

        .empty-state-icon {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 1rem;
            background: rgba(34, 211, 238, 0.1);
            color: var(--cyan);
        }

        .empty-state h2 {
            color: #e6edf3;
            font-size: 1.2rem;
            margin-bottom: 0.4rem;
        }

        .empty-state p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .empty-state a {
            margin-top: 1.2rem;
        }

        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }

            .nav-entry {
                display: none;
            }

            .mobile-burger {
                display: flex;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2.2rem 1.8rem;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 1.15rem;
                padding-right: 1.15rem;
            }

            .header-inner {
                height: 68px;
                gap: 1rem;
            }

            .mobile-drawer {
                top: 68px;
            }

            .article-hero {
                padding: 3.4rem 0 2.4rem;
            }

            .article-title {
                font-size: 1.5rem;
                line-height: 1.42;
            }

            .article-main-wrap {
                padding: 1.8rem 1.15rem 0;
            }

            .article-content {
                font-size: 0.95rem;
            }

            .article-content h2 {
                font-size: 1.25rem;
            }

            .article-updated-line {
                flex-direction: column;
                gap: 0.3rem;
            }

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

            .related-section {
                padding-bottom: 3.5rem;
                padding-left: 1.15rem;
                padding-right: 1.15rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
                padding-top: 3rem;
            }

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