/* roulang page: index */
:root {
  --bg-primary: #0B1120;
  --bg-secondary: #10192B;
  --bg-footer: #060B16;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-card-hover: rgba(255, 255, 255, 0.09);
  --border-card: rgba(255, 255, 255, 0.1);
  --border-card-hover: rgba(0, 229, 255, 0.5);
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --cyan: #00E5FF;
  --cyan-dim: rgba(0, 229, 255, 0.12);
  --amber: #F59E0B;
  --amber-dim: rgba(245, 158, 11, 0.12);
  --radius: 1rem;
  --radius-lg: 1.5rem;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  --glow: 0 0 30px rgba(0, 229, 255, 0.3);
  --glow-amber: 0 0 30px rgba(245, 158, 11, 0.25);
}
* , *::before , *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }
.container { max-width: 80rem; margin-left: auto; margin-right: auto; padding-left: 1rem; padding-right: 1rem; }
@media (min-width: 640px) { .container { padding-left: 1.5rem; padding-right: 1.5rem; } }
@media (min-width: 1024px) { .container { padding-left: 2rem; padding-right: 2rem; } }
.section { padding-top: 4rem; padding-bottom: 4rem; }
@media (min-width: 768px) { .section { padding-top: 6rem; padding-bottom: 6rem; } }
.section-header { text-align: center; max-width: 42rem; margin-left: auto; margin-right: auto; margin-bottom: 3rem; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--cyan-dim);
  color: var(--cyan);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.35rem 1rem;
  border-radius: 9999px;
  border: 1px solid rgba(0, 229, 255, 0.25);
  margin-bottom: 1rem;
}
.section-title { font-size: 1.5rem; font-weight: 800; line-height: 1.3; margin-bottom: 0.75rem; }
@media (min-width: 768px) { .section-title { font-size: 2rem; } }
@media (min-width: 1024px) { .section-title { font-size: 2.25rem; } }
.section-desc { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }
/* 导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 17, 32, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.navbar { display: flex; align-items: center; justify-content: space-between; height: 4.25rem; }
@media (min-width: 1024px) { .navbar { height: 4.5rem; } }
.logo { display: flex; align-items: center; gap: 0.65rem; font-weight: 900; font-size: 1.25rem; color: var(--text-primary); }
.logo:hover { opacity: 0.9; }
.logo-icon {
  width: 2.4rem; height: 2.4rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, var(--cyan), #0284C7);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.15rem; color: #041224;
  box-shadow: var(--glow);
  flex-shrink: 0;
}
.nav-links { display: none; align-items: center; gap: 0.25rem; }
@media (min-width: 1024px) { .nav-links { display: flex; } }
.nav-link {
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s;
  position: relative;
}
.nav-link:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.06); }
.nav-link.active { color: var(--cyan); background: var(--cyan-dim); font-weight: 700; }
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0.2rem; left: 50%; transform: translateX(-50%);
  width: 1rem; height: 2px; border-radius: 2px;
  background: var(--cyan);
}
.header-actions { display: flex; align-items: center; gap: 0.75rem; }
.countdown-badge {
  display: none;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: var(--amber);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.4rem 0.9rem;
  border-radius: 9999px;
  white-space: nowrap;
}
@media (min-width: 768px) { .countdown-badge { display: inline-flex; } }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--cyan);
  color: #041224;
  font-weight: 800;
  font-size: 0.9rem;
  padding: 0.6rem 1.4rem;
  border-radius: 9999px;
  transition: all 0.3s;
  white-space: nowrap;
}
.btn-primary:hover {
  transform: scale(1.04);
  filter: brightness(1.1);
  box-shadow: var(--glow);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.6rem 1.4rem;
  border-radius: 9999px;
  transition: all 0.3s;
  white-space: nowrap;
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.14); border-color: rgba(255, 255, 255, 0.3); }
.btn-large { padding: 0.9rem 2.2rem; font-size: 1rem; }
.menu-toggle {
  display: inline-flex;
  width: 2.6rem; height: 2.6rem;
  align-items: center; justify-content: center;
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  font-size: 1.2rem;
  color: var(--text-primary);
}
@media (min-width: 1024px) { .menu-toggle { display: none; } }
.mobile-menu {
  display: none;
  background: rgba(11, 17, 32, 0.98);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1rem 1.25rem 1.5rem;
}
.mobile-menu.open { display: block; }
.mobile-menu .nav-link { display: block; padding: 0.75rem 1rem; border-radius: 0.75rem; }
/* Hero */
.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right, rgba(11, 17, 32, 0.88), rgba(11, 17, 32, 0.55) 45%, rgba(11, 17, 32, 0.35));
  z-index: -1;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, transparent, rgba(11, 17, 32, 0.55) 75%);
  z-index: -1;
}
.hero-content { max-width: 52rem; padding-top: 4rem; padding-bottom: 4rem; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: var(--amber);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  margin-bottom: 1.5rem;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.15);
}
.hero-title {
  font-size: 2rem;
  line-height: 1.2;
  font-weight: 900;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}
@media (min-width: 640px) { .hero-title { font-size: 2.5rem; } }
@media (min-width: 1024px) { .hero-title { font-size: 3.25rem; } }
.hero-title .highlight { color: var(--cyan); }
.hero-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 40rem;
  margin-bottom: 2rem;
}
@media (min-width: 768px) { .hero-subtitle { font-size: 1.1rem; } }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 2.5rem; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.hero-tag i { color: var(--cyan); }
/* 玩法步骤 */
.steps-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .steps-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .steps-grid { grid-template-columns: repeat(4, 1fr); gap: 2rem; } }
.step-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  transition: all 0.3s;
  overflow: hidden;
}
.step-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.4), transparent);
}
.step-card:hover { transform: translateY(-4px); border-color: var(--border-card-hover); box-shadow: var(--shadow); }
.step-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0, 229, 255, 0.5);
  line-height: 1;
  margin-bottom: 1rem;
}
.step-icon {
  width: 2.8rem; height: 2.8rem;
  border-radius: 0.75rem;
  background: var(--cyan-dim);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  color: var(--cyan);
  margin-bottom: 1rem;
}
.step-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.6rem; }
.step-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.7; }
/* 奖励预览 */
.rewards-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .rewards-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: minmax(190px, auto);
  }
}
@media (min-width: 1024px) { .rewards-grid { grid-template-columns: repeat(3, 1fr); } }
.reward-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  padding: 1.75rem;
  transition: all 0.3s;
  min-height: 190px;
}
.reward-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(245, 158, 11, 0.4); }
.reward-card.featured {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(255, 255, 255, 0.04));
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow: var(--glow-amber);
}
.reward-card.featured::before {
  content: "HOT";
  position: absolute;
  top: 1.2rem; right: 1.2rem;
  background: var(--amber);
  color: #041224;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
}
.reward-icon {
  width: 3rem; height: 3rem;
  border-radius: 0.85rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1.1rem;
  background: var(--amber-dim);
  color: var(--amber);
}
.reward-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; }
.reward-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }
.reward-meta { margin-top: 1rem; display: flex; align-items: center; gap: 0.5rem; font-size: 0.75rem; font-weight: 600; color: var(--amber); }
/* 任务进度 */
.task-wrap { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .task-wrap { grid-template-columns: 2fr 3fr; gap: 2.5rem; } }
.task-panel {
  background: linear-gradient(160deg, rgba(0, 229, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(0, 229, 255, 0.18);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.panel-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem; }
.panel-title i { color: var(--cyan); }
.progress-block { margin-bottom: 1.75rem; }
.progress-label { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.5rem; }
.progress-bar {
  height: 0.7rem;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 9999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), #0284C7);
  border-radius: 9999px;
  box-shadow: var(--glow);
}
.stat-row { display: flex; gap: 1.25rem; margin-bottom: 1.5rem; }
.stat-item { flex: 1; }
.stat-item .stat-value { font-size: 1.8rem; font-weight: 900; color: var(--text-primary); }
.stat-item .stat-label { font-size: 0.78rem; color: var(--text-muted); white-space: nowrap; }
.badge-medal {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--amber-dim);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--amber);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 700;
}
.task-list { display: flex; flex-direction: column; gap: 1rem; }
.task-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 1rem;
  padding: 1rem 1.25rem;
  transition: all 0.3s;
}
.task-item:hover { border-color: var(--border-card-hover); transform: translateX(4px); }
.task-check {
  width: 2.2rem; height: 2.2rem;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  color: var(--cyan);
  flex-shrink: 0;
}
.task-check.done { border-color: var(--cyan); background: var(--cyan); color: #041224; }
.task-info { flex: 1; min-width: 0; }
.task-info h4 { font-size: 0.92rem; font-weight: 600; margin-bottom: 0.15rem; }
.task-info p { font-size: 0.78rem; color: var(--text-muted); }
.task-reward { font-size: 0.8rem; font-weight: 700; color: var(--amber); white-space: nowrap; }
/* CTA */
.cta-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 5rem 0 5.5rem;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6, 11, 22, 0.92), rgba(11, 17, 32, 0.75));
}
.cta-content { position: relative; text-align: center; max-width: 44rem; margin-left: auto; margin-right: auto; padding: 0 1.5rem; }
.cta-title { font-size: 1.8rem; font-weight: 900; margin-bottom: 1rem; line-height: 1.3; }
@media (min-width: 768px) { .cta-title { font-size: 2.5rem; } }
.cta-desc { color: var(--text-secondary); font-size: 1rem; line-height: 1.8; margin-bottom: 2rem; }
/* 资讯卡片 */
.news-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .news-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .news-grid { grid-template-columns: repeat(3, 1fr); } }
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s;
}
.news-card:hover { transform: translateY(-4px); border-color: var(--border-card-hover); box-shadow: var(--shadow); }
.news-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.news-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.news-card:hover .news-cover img { transform: scale(1.05); }
.news-body { padding: 1.25rem 1.25rem 1.4rem; }
.badge {
  display: inline-block;
  background: var(--cyan-dim);
  color: var(--cyan);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.7rem;
  border-radius: 9999px;
  border: 1px solid rgba(0, 229, 255, 0.25);
}
.news-title { font-size: 1rem; font-weight: 700; line-height: 1.5; margin-bottom: 0.5rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-excerpt { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 0.75rem; }
.news-meta { display: flex; align-items: center; justify-content: space-between; font-size: 0.75rem; color: var(--text-muted); }
.read-more { color: var(--cyan); font-weight: 600; display: inline-flex; align-items: center; gap: 0.3rem; }
.empty-state {
  border: 2px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: 3rem 1rem;
  text-align: center;
  color: var(--text-secondary);
  grid-column: 1 / -1;
}
.empty-state i { font-size: 2rem; margin-bottom: 0.75rem; color: var(--text-muted); display: block; }
.empty-state p { font-size: 0.95rem; }
/* FAQ */
.faq-wrap { max-width: 50rem; margin-left: auto; margin-right: auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 1rem;
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: border-color 0.3s;
}
.faq-item:hover { border-color: rgba(255, 255, 255, 0.18); }
.faq-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
}
.faq-icon {
  flex-shrink: 0;
  width: 1.75rem; height: 1.75rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem;
  color: var(--cyan);
  transition: transform 0.3s;
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--cyan); color: #041224; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner { padding: 0 1.25rem 1.1rem; font-size: 0.85rem; color: var(--text-secondary); line-height: 1.75; }
.faq-item.active .faq-answer { max-height: 320px; }
/* 底部CTA */
.bottom-cta {
  position: relative;
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 4rem 0;
  overflow: hidden;
}
.bottom-cta::before {
  content: "";
  position: absolute;
  top: -50%; left: 20%;
  width: 60%; height: 200%;
  background: radial-gradient(ellipse, rgba(0, 229, 255, 0.08), transparent 60%);
  pointer-events: none;
}
.bottom-cta-content { position: relative; text-align: center; max-width: 40rem; margin-left: auto; margin-right: auto; }
.bottom-cta h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 0.75rem; }
@media (min-width: 768px) { .bottom-cta h2 { font-size: 2rem; } }
.bottom-cta p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 1.75rem; }
.app-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; }
.app-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 1rem;
  padding: 0.75rem 1.2rem;
  transition: all 0.3s;
}
.app-badge:hover { border-color: var(--cyan); background: rgba(0, 229, 255, 0.08); }
.app-badge i { font-size: 1.4rem; color: var(--cyan); }
.app-badge span { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); }
.app-badge strong { display: block; font-size: 0.85rem; color: var(--text-primary); font-weight: 700; }
/* Footer */
.site-footer {
  background: var(--bg-footer);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 3.5rem 0 2rem;
}
.footer-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; } }
.footer-brand .logo { margin-bottom: 1rem; }
.footer-brand p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.7; max-width: 20rem; }
.footer-title { font-size: 0.9rem; font-weight: 700; margin-bottom: 1rem; color: var(--text-primary); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 0.55rem; }
.footer-links a { font-size: 0.85rem; color: var(--text-secondary); transition: color 0.2s; }
.footer-links a:hover { color: var(--cyan); }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { display: flex; align-items: center; gap: 0.6rem; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.6rem; }
.footer-contact i { color: var(--cyan); width: 1rem; text-align: center; }
.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.footer-copyright a { color: var(--text-muted); }
.footer-copyright a:hover { color: var(--text-secondary); }
/* 响应式 */
@media (max-width: 1023px) {
  .mobile-menu .nav-link { font-size: 0.95rem; }
  .hero { min-height: 540px; }
}
@media (max-width: 639px) {
  .section-title { font-size: 1.35rem; }
  .hero-title { font-size: 1.6rem; }
  .hero-subtitle { font-size: 0.92rem; }
  .hero { min-height: 500px; }
  .reward-card { min-height: 150px; padding: 1.25rem; }
  .task-panel { padding: 1.5rem; }
  .stat-value { font-size: 1.4rem; }
  .footer-grid { gap: 1.75rem; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --bg: #0B1120;
            --bg-deep: #060B16;
            --cyan: #00E5FF;
            --amber: #F59E0B;
            --text-1: #F8FAFC;
            --text-2: #94A3B8;
            --text-3: #475569;
            --glass: rgba(255, 255, 255, 0.05);
            --glass-border: rgba(255, 255, 255, 0.1);
            --glass-line: rgba(255, 255, 255, 0.15);
            --radius-card: 1.25rem;
            --radius-btn: 9999px;
            --glow: 0 0 30px rgba(0, 229, 255, 0.3);
            --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text-1);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        input {
            font-family: inherit;
            outline: none;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--glass-border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 1rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-weight: 900;
            font-size: 1.35rem;
            color: var(--text-1);
            white-space: nowrap;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--cyan), #0284C7);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #000;
            font-size: 1.1rem;
            box-shadow: var(--glow);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
        }

        .nav-link {
            position: relative;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-2);
            padding: 0.5rem 0.15rem;
            transition: color 0.3s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--cyan);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--text-1);
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.85rem;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(245, 158, 11, 0.15);
            color: var(--amber);
            border: 1px solid rgba(245, 158, 11, 0.35);
            border-radius: var(--radius-btn);
            padding: 0.35rem 0.85rem;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .status-badge i {
            font-size: 0.55rem;
            color: var(--amber);
            animation: pulse 1.6s ease infinite;
        }

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

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--cyan);
            color: #000;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 0.55rem 1.4rem;
            border-radius: var(--radius-btn);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-cta:hover {
            transform: scale(1.05);
            filter: brightness(1.1);
            box-shadow: var(--glow);
        }

        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--glass-border);
            background: var(--glass);
            color: var(--text-1);
            font-size: 1.15rem;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .menu-toggle:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 49;
            background: rgba(11, 17, 32, 0.96);
            backdrop-filter: blur(24px);
            border-bottom: 1px solid var(--glass-border);
            padding: 1rem 1.5rem 1.25rem;
            flex-direction: column;
            gap: 0.25rem;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
        }

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

        .mobile-menu a {
            padding: 0.75rem 0.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-2);
            border-radius: 8px;
            transition: all 0.3s ease;
        }

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

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
            border-bottom: 1px solid var(--glass-border);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(135deg, rgba(11, 17, 32, 0.92) 20%, rgba(11, 17, 32, 0.68) 60%, rgba(11, 17, 32, 0.45) 100%);
        }

        .article-hero-inner {
            position: relative;
            z-index: 2;
            padding: 4rem 1.5rem;
            max-width: 900px;
            text-align: left;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.45rem;
            font-size: 0.85rem;
            color: var(--text-2);
            margin-bottom: 1.5rem;
        }

        .breadcrumb a {
            color: var(--cyan);
            font-weight: 500;
        }

        .breadcrumb a:hover {
            text-decoration: underline;
        }

        .breadcrumb .sep {
            color: var(--text-3);
        }

        .breadcrumb .current {
            color: var(--text-2);
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-title {
            font-size: clamp(1.75rem, 3vw, 2.6rem);
            font-weight: 900;
            line-height: 1.3;
            color: var(--text-1);
            margin-bottom: 1.25rem;
            max-width: 800px;
            letter-spacing: -0.01em;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.88rem;
            color: var(--text-2);
        }

        .meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            background: rgba(0, 229, 255, 0.12);
            color: var(--cyan);
            border: 1px solid rgba(0, 229, 255, 0.25);
            padding: 0.3rem 0.8rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.78rem;
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .meta-item i {
            color: var(--amber);
            font-size: 0.85rem;
        }

        .meta-verified {
            color: var(--amber);
            font-weight: 600;
            font-size: 0.82rem;
        }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 4rem 0 3rem;
        }

        .article-content-wrap {
            max-width: 768px;
            margin: 0 auto;
        }

        .article-body {
            font-size: 1rem;
            line-height: 1.9;
            color: var(--text-2);
        }

        .article-body h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--text-1);
            margin: 2.5rem 0 1rem;
            padding-left: 0.8rem;
            border-left: 3px solid var(--cyan);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-1);
            margin: 1.75rem 0 0.75rem;
        }

        .article-body p {
            margin-bottom: 1.25rem;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 1.25rem;
            padding-left: 1.5rem;
        }

        .article-body ul li {
            list-style: disc;
            margin-bottom: 0.5rem;
        }

        .article-body ol li {
            list-style: decimal;
            margin-bottom: 0.5rem;
        }

        .article-body a {
            color: var(--cyan);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: #fff;
        }

        .article-body img {
            border-radius: var(--radius-card);
            margin: 1.75rem 0;
            box-shadow: var(--shadow);
        }

        .article-body blockquote {
            border-left: 3px solid var(--amber);
            background: rgba(245, 158, 11, 0.07);
            padding: 0.9rem 1.2rem;
            border-radius: 0 0.75rem 0.75rem 0;
            margin: 1.5rem 0;
            color: var(--text-2);
            font-style: italic;
        }

        .article-body code {
            background: rgba(0, 229, 255, 0.1);
            color: var(--cyan);
            padding: 0.15rem 0.4rem;
            border-radius: 4px;
            font-size: 0.92em;
        }

        .article-body pre {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-sm);
            padding: 1.25rem;
            overflow-x: auto;
            margin: 1.5rem 0;
            font-size: 0.9rem;
        }

        .article-body pre code {
            background: none;
            color: var(--text-2);
            padding: 0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.92rem;
        }

        .article-body th {
            background: rgba(0, 229, 255, 0.08);
            color: var(--text-1);
            font-weight: 600;
            text-align: left;
            padding: 0.7rem 1rem;
            border-bottom: 1px solid var(--glass-border);
        }

        .article-body td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid var(--glass-border);
            color: var(--text-2);
        }

        /* 内容未找到 */
        .not-found {
            text-align: center;
            padding: 5rem 1.5rem;
            border: 2px dashed var(--glass-border);
            border-radius: var(--radius-card);
            background: var(--glass);
        }

        .not-found i {
            font-size: 3rem;
            color: var(--text-3);
            margin-bottom: 1rem;
        }

        .not-found p {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-2);
            margin-bottom: 1.5rem;
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--cyan);
            color: #000;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 0.7rem 1.6rem;
            border-radius: var(--radius-btn);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            transform: scale(1.04);
            filter: brightness(1.1);
            box-shadow: var(--glow);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-1);
            border: 1px solid var(--glass-border);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.7rem 1.4rem;
            border-radius: var(--radius-btn);
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.25);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            margin-top: 4rem;
            padding-top: 3rem;
            border-top: 1px solid var(--glass-border);
        }

        .related-section h2 {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-1);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .related-section h2 i {
            color: var(--amber);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }

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

        .related-card:hover {
            transform: translateY(-5px);
            border-color: rgba(0, 229, 255, 0.4);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
        }

        .related-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #0f172a;
        }

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

        .related-card:hover .related-cover img {
            transform: scale(1.06);
        }

        .related-body {
            padding: 1.1rem 1.2rem 1.3rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-body h3 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text-1);
            line-height: 1.45;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-body p {
            font-size: 0.82rem;
            color: var(--text-2);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.75rem;
            flex: 1;
        }

        .related-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--cyan);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            transition: gap 0.3s ease;
        }

        .related-link:hover {
            gap: 0.55rem;
        }

        /* ===== 返回列表 ===== */
        .article-back {
            margin-top: 2.5rem;
            display: flex;
            justify-content: center;
        }

        .article-back a {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--text-2);
            font-size: 0.92rem;
            font-weight: 600;
            padding: 0.6rem 1.5rem;
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-btn);
            background: var(--glass);
            transition: all 0.3s ease;
        }

        .article-back a:hover {
            color: var(--cyan);
            border-color: var(--cyan);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.15);
        }

        /* ===== CTA 横幅 ===== */
        .cta-section {
            background: linear-gradient(135deg, #0B1120 0%, #0f1b33 50%, #0B1120 100%);
            border-top: 1px solid var(--glass-border);
            border-bottom: 1px solid var(--glass-border);
            padding: 4.5rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 900;
            color: var(--text-1);
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            color: var(--text-2);
            font-size: 1rem;
            max-width: 640px;
            margin: 0 auto 1.75rem;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--glass-border);
            padding: 4rem 0 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-2);
            line-height: 1.7;
            margin-top: 0.9rem;
            max-width: 300px;
        }

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

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

        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-2);
            transition: color 0.3s ease;
        }

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

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

        .footer-contact li {
            font-size: 0.88rem;
            color: var(--text-2);
            display: flex;
            align-items: center;
            gap: 0.55rem;
        }

        .footer-contact i {
            color: var(--amber);
            width: 16px;
        }

        .footer-copyright {
            border-top: 1px solid var(--glass-border);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-3);
        }

        .footer-copyright a {
            color: var(--text-2);
            transition: color 0.3s ease;
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 1.25rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }

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

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .nav-links,
            .header-actions .status-badge {
                display: none;
            }

            .menu-toggle {
                display: inline-flex;
            }

            .header-actions {
                margin-left: auto;
            }

            .article-hero {
                min-height: 260px;
            }

            .article-hero-inner {
                padding: 3rem 1rem;
            }

            .article-main {
                padding: 3rem 0 2rem;
            }

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

            .cta-section {
                padding: 3rem 0;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 1.1rem;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
                border-radius: 10px;
            }

            .btn-cta {
                padding: 0.45rem 1rem;
                font-size: 0.82rem;
            }

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

            .article-meta {
                gap: 0.7rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }

/* roulang page: category1 */
:root {
  --bg-deep: #0B1120;
  --bg-darker: #060B16;
  --cyan: #00E5FF;
  --amber: #F59E0B;
  --text-light: #F8FAFC;
  --text-dim: #94A3B8;
  --text-faint: #475569;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-bg-hover: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-highlight: rgba(255, 255, 255, 0.15);
  --radius-card: 1.25rem;
  --radius-btn: 999px;
  --glow-cyan: 0 0 30px rgba(0, 229, 255, 0.3);
  --glow-amber: 0 0 30px rgba(245, 158, 11, 0.25);
  --font-main: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-deep);
  color: var(--text-light);
  font-family: var(--font-main);
  line-height: 1.6;
  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 1.25rem;
}

@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.2rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-light);
  white-space: nowrap;
}

.logo-icon {
  width: 2.4rem;
  height: 2.4rem;
  background: var(--cyan);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  font-size: 1rem;
  flex-shrink: 0;
  box-shadow: var(--glow-cyan);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 1.75rem;
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  position: relative;
  color: var(--text-dim);
  font-weight: 500;
  padding: 0.5rem 0;
  transition: color 0.3s;
  font-size: 0.95rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
  transition: width 0.3s;
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: var(--text-light);
  font-weight: 600;
}

.nav-links.open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 4.5rem;
  left: 0;
  right: 0;
  background: rgba(11, 17, 32, 0.96);
  backdrop-filter: blur(20px);
  padding: 1.25rem 1.5rem;
  gap: 1rem;
  border-bottom: 1px solid var(--glass-border);
  align-items: flex-start;
  z-index: 50;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .header-actions {
    gap: 1rem;
  }
}

.countdown-badge {
  background: rgba(245, 158, 11, 0.12);
  color: var(--amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
  font-size: 0.72rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.countdown-badge .pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--amber);
  border-radius: 50%;
  display: inline-block;
  animation: pulse 1.6s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.5);
  }
  50% {
    opacity: 0.6;
    box-shadow: 0 0 0 6px rgba(245, 158, 11, 0);
  }
}

.nav-toggle {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  color: var(--text-light);
  border-radius: 0.5rem;
  padding: 0.5rem 0.7rem;
  font-size: 1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.15);
}

@media (min-width: 1024px) {
  .nav-toggle {
    display: none !important;
  }
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--cyan);
  color: #000;
  font-weight: 700;
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  font-size: 0.9rem;
  line-height: 1;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 0.02em;
  white-space: nowrap;
  box-shadow: 0 4px 20px rgba(0, 229, 255, 0.2);
}

.btn-primary:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
  box-shadow: var(--glow-cyan);
}

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

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-light);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: all 0.3s;
  white-space: nowrap;
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1rem;
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 5rem 0 4rem;
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--glass-border);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 17, 32, 0.93) 30%, rgba(11, 17, 32, 0.6) 68%, rgba(0, 229, 255, 0.08) 100%);
  pointer-events: none;
}

.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--bg-deep));
  pointer-events: none;
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.breadcrumb a {
  color: var(--text-dim);
  transition: color 0.3s;
}

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

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

.breadcrumb .current {
  color: var(--text-light);
  font-weight: 500;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 229, 255, 0.12);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 1.2rem;
  letter-spacing: 0.03em;
}

.hero-title {
  font-size: 2.1rem;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

.hero-title .highlight {
  color: var(--cyan);
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 1.8rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  max-width: 640px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--text-light);
}

.stat-value .accent {
  color: var(--cyan);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-dim);
}

@media (max-width: 768px) {
  .page-hero {
    padding: 3.5rem 0 3rem;
  }
  .hero-title {
    font-size: 1.7rem;
  }
  .hero-subtitle {
    font-size: 0.95rem;
  }
  .hero-stats {
    gap: 1rem;
  }
  .stat-value {
    font-size: 1.2rem;
  }
}

/* ===== Section ===== */
.section {
  padding: 4rem 0;
}

@media (min-width: 768px) {
  .section {
    padding: 5rem 0;
  }
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.25);
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.section-title {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 720px;
  line-height: 1.7;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.2rem;
  }
  .section-desc {
    font-size: 1.05rem;
  }
}

/* ===== TOC ===== */
.toc-section {
  padding: 2rem 0 0;
  margin-top: -2rem;
  position: relative;
  z-index: 5;
}

.toc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  border-radius: 1.25rem;
  padding: 1.25rem;
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

@media (min-width: 768px) {
  .toc-grid {
    grid-template-columns: repeat(4, 1fr);
    padding: 1.5rem;
  }
}

.toc-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1rem;
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--text-dim);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.3s;
}

.toc-item i {
  color: var(--cyan);
  font-size: 0.9rem;
  transition: transform 0.3s;
}

.toc-item:hover {
  background: rgba(0, 229, 255, 0.08);
  border-color: rgba(0, 229, 255, 0.3);
  color: var(--text-light);
  transform: translateY(-2px);
}

.toc-item:hover i {
  transform: scale(1.15);
}

/* ===== Split Block ===== */
.split-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .split-grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
}

.split-text .section-tag {
  margin-bottom: 0.8rem;
}

.split-text h2 {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .split-text h2 {
    font-size: 1.9rem;
  }
}

.split-text p {
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 1.2rem;
}

.split-media {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
}

.split-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.6s;
}

.split-media:hover img {
  transform: scale(1.04);
}

.split-media::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--glass-highlight);
  border-radius: 1.5rem;
  pointer-events: none;
  opacity: 0.3;
  transition: opacity 0.3s;
}

.split-media:hover::after {
  opacity: 0.6;
}

/* ===== Feature List ===== */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin: 1.2rem 0;
}

.feature-item {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  padding: 0.9rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 0.85rem;
  transition: all 0.3s;
}

.feature-item:hover {
  background: rgba(0, 229, 255, 0.05);
  border-color: rgba(0, 229, 255, 0.2);
}

.feature-check {
  flex-shrink: 0;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.15);
  color: var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  margin-top: 0.1rem;
}

.feature-item strong {
  display: block;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 0.2rem;
  font-size: 0.95rem;
}

.feature-item span {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ===== Step List ===== */
.step-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.2rem 0;
}

.step-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  transition: all 0.3s;
}

.step-item:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(0, 229, 255, 0.25);
  transform: translateX(4px);
}

.step-number {
  flex-shrink: 0;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), #00b8d9);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.3);
}

.step-item strong {
  color: var(--text-light);
  font-weight: 600;
  font-size: 0.95rem;
  display: block;
  margin-bottom: 0.2rem;
}

.step-item span {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ===== Tip Box ===== */
.tip-box {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  padding: 0.9rem 1.1rem;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: 0.9rem;
  font-size: 0.87rem;
  color: #fcd34d;
  line-height: 1.6;
  margin-top: 1rem;
}

.tip-box i {
  margin-top: 0.2rem;
  flex-shrink: 0;
}

/* ===== Reward ===== */
.reward-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (min-width: 768px) {
  .reward-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

.reward-card {
  position: relative;
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 1.25rem;
  transition: all 0.4s;
  overflow: hidden;
}

.reward-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--amber), transparent);
  opacity: 0.4;
  transition: opacity 0.3s;
}

.reward-card:hover {
  border-color: rgba(245, 158, 11, 0.45);
  transform: translateY(-6px);
  box-shadow: var(--glow-amber);
}

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

.reward-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 1rem;
  background: rgba(245, 158, 11, 0.15);
  color: var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.reward-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.reward-card p {
  font-size: 0.87rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.season-progress {
  margin-top: 1.8rem;
  padding: 1.2rem 1.3rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
}

.progress-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.progress-head .percent {
  color: var(--amber);
  font-weight: 700;
}

.progress-track {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(to right, #f59e0b, #fbbf24);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.4);
  transition: width 1.2s ease;
}

/* ===== Violation ===== */
.violation-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin: 1.2rem 0;
}

.violation-item {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  padding: 1rem 1.1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 0.9rem;
  transition: all 0.3s;
}

.violation-item:hover {
  background: rgba(245, 158, 11, 0.04);
  border-color: rgba(245, 158, 11, 0.2);
}

.violation-icon {
  flex-shrink: 0;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.12);
  color: var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  margin-top: 0.15rem;
}

.violation-item strong {
  display: block;
  font-weight: 600;
  color: var(--text-light);
  font-size: 0.92rem;
  margin-bottom: 0.15rem;
}

.violation-item span {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ===== FAQ ===== */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 880px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .faq-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
  }
}

.faq-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  overflow: hidden;
  transition: border-color 0.3s, background 0.3s;
}

.faq-card:hover {
  border-color: rgba(0, 229, 255, 0.2);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  width: 100%;
  text-align: left;
  padding: 1.1rem 1.2rem;
  background: transparent;
  border: none;
  color: var(--text-light);
  font-weight: 600;
  font-size: 0.93rem;
  cursor: pointer;
  line-height: 1.4;
}

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

.faq-icon {
  flex-shrink: 0;
  width: 1.6rem;
  height: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-dim);
  font-size: 0.7rem;
  transition: all 0.3s;
}

.faq-card[aria-expanded="true"] .faq-icon {
  background: var(--cyan);
  color: #000;
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-content {
  padding: 0 1.2rem 1.1rem;
  color: var(--text-dim);
  font-size: 0.87rem;
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section {
  padding: 4rem 0;
  background: linear-gradient(to bottom, var(--bg-deep), var(--bg-darker));
}

.cta-box {
  position: relative;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.12), rgba(245, 158, 11, 0.08)), var(--bg-darker);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: 1.75rem;
  padding: 3rem 1.5rem;
  text-align: center;
  overflow: hidden;
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.5);
}

@media (min-width: 768px) {
  .cta-box {
    padding: 4rem 3rem;
  }
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -60%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.15), transparent 70%);
  pointer-events: none;
}

.cta-title {
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 0.8rem;
  position: relative;
}

.cta-title .highlight {
  color: var(--cyan);
}

@media (min-width: 768px) {
  .cta-title {
    font-size: 2.2rem;
  }
}

.cta-subtitle {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto 1.6rem;
  line-height: 1.7;
  position: relative;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  justify-content: center;
  position: relative;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--glass-border);
  padding: 3.5rem 0 1.5rem;
}

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

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 2.5rem;
  }
}

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

.footer-brand p {
  color: var(--text-dim);
  font-size: 0.87rem;
  line-height: 1.7;
  max-width: 300px;
}

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

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

.footer-links a {
  color: var(--text-dim);
  font-size: 0.87rem;
  transition: color 0.3s, padding-left 0.3s;
}

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

.footer-contact li {
  color: var(--text-dim);
  font-size: 0.87rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-contact i {
  color: var(--cyan);
  width: 1rem;
  text-align: center;
}

.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
  text-align: center;
}

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

.footer-copyright a {
  color: var(--text-faint);
  transition: color 0.3s;
}

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

/* ===== Back to top ===== */
.back-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 40;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.15);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.3s;
  opacity: 0;
  visibility: hidden;
}

.back-top.show {
  opacity: 1;
  visibility: visible;
}

.back-top:hover {
  background: var(--cyan);
  color: #000;
  box-shadow: var(--glow-cyan);
}

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

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 8px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 229, 255, 0.3);
}

::selection {
  background: rgba(0, 229, 255, 0.3);
  color: #fff;
}

/* roulang page: category2 */
:root {
      --bg: #0B1120;
      --bg-deep: #060B16;
      --cyan: #00E5FF;
      --amber: #F59E0B;
      --text: #F8FAFC;
      --text-muted: #94A3B8;
      --text-weak: #475569;
      --surface: rgba(255,255,255,0.05);
      --surface-border: rgba(255,255,255,0.1);
      --radius: 1rem;
      --shadow: 0 10px 40px rgba(0,0,0,0.35);
      --glow: 0 0 30px rgba(0,229,255,0.3);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      background: var(--bg);
      color: var(--text);
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
    }
    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 1rem;
    }
    @media (min-width: 640px) { .container { padding: 0 1.5rem; } }
    @media (min-width: 1024px) { .container { padding: 0 2rem; } }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(11, 17, 32, 0.78);
      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: 70px;
      gap: 1.5rem;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-weight: 900;
      font-size: 1.25rem;
      white-space: nowrap;
    }
    .logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: linear-gradient(135deg, #00E5FF, #0891b2);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #000;
      font-size: 1rem;
      box-shadow: var(--glow);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 2rem;
    }
    .nav-link {
      position: relative;
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
      transition: color 0.3s;
      padding: 0.5rem 0.25rem;
    }
    .nav-link:hover { color: var(--text); }
    .nav-link.active { color: var(--text); }
    .nav-link.active::after {
      content: '';
      position: absolute;
      left: 0.25rem;
      right: 0.25rem;
      bottom: 0;
      height: 2px;
      background: var(--cyan);
      border-radius: 2px;
      box-shadow: 0 0 8px rgba(0,229,255,0.6);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .countdown-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--amber);
      background: rgba(245,158,11,0.12);
      border: 1px solid rgba(245,158,11,0.35);
      padding: 0.35rem 0.8rem;
      border-radius: 999px;
      white-space: nowrap;
    }
    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: var(--cyan);
      color: #0B1120;
      font-weight: 700;
      padding: 0.6rem 1.4rem;
      border-radius: 999px;
      font-size: 0.9rem;
      transition: all 0.3s;
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      transform: scale(1.04);
      filter: brightness(1.1);
      box-shadow: 0 0 30px rgba(0,229,255,0.4);
    }
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(255,255,255,0.08);
      color: var(--text);
      border: 1px solid rgba(255,255,255,0.15);
      padding: 0.6rem 1.4rem;
      border-radius: 999px;
      font-size: 0.9rem;
      font-weight: 600;
      transition: all 0.3s;
      cursor: pointer;
    }
    .btn-secondary:hover { background: rgba(255,255,255,0.15); }
    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid rgba(255,255,255,0.15);
      color: var(--text);
      width: 40px;
      height: 40px;
      border-radius: 10px;
      font-size: 1rem;
      cursor: pointer;
      align-items: center;
      justify-content: center;
    }

    /* ===== Hero ===== */
    .help-hero {
      position: relative;
      background-size: cover;
      background-position: center;
      min-height: 430px;
      display: flex;
      align-items: center;
    }
    .help-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(11,17,32,0.94) 0%, rgba(11,17,32,0.78) 50%, rgba(11,17,32,0.35) 100%);
    }
    .help-hero-inner {
      position: relative;
      z-index: 2;
      width: 100%;
      padding: 4rem 0;
      text-align: center;
    }
    .breadcrumb {
      display: inline-flex;
      gap: 0.4rem;
      align-items: center;
      font-size: 0.85rem;
      color: var(--text-muted);
      background: rgba(255,255,255,0.07);
      padding: 0.3rem 1rem;
      border-radius: 999px;
      margin-bottom: 1.5rem;
    }
    .breadcrumb span { color: var(--cyan); }
    .help-hero h1 {
      font-size: 2.6rem;
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 0.75rem;
    }
    .help-hero .subtitle {
      font-size: 1.1rem;
      color: var(--text-muted);
      max-width: 560px;
      margin: 0 auto 2rem;
    }
    .search-bar {
      display: flex;
      max-width: 600px;
      margin: 0 auto;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.16);
      border-radius: 999px;
      backdrop-filter: blur(12px);
      padding: 0.35rem;
    }
    .search-bar i {
      width: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-muted);
    }
    .search-bar input {
      flex: 1;
      background: transparent;
      border: none;
      outline: none;
      color: var(--text);
      padding: 0.4rem 0.2rem;
      font-size: 0.95rem;
      min-width: 0;
    }
    .search-bar input::placeholder { color: var(--text-weak); }
    .search-bar button {
      background: var(--cyan);
      border: none;
      color: #0B1120;
      font-weight: 700;
      padding: 0.55rem 1.5rem;
      border-radius: 999px;
      font-size: 0.9rem;
      cursor: pointer;
      transition: all 0.3s;
      white-space: nowrap;
    }
    .search-bar button:hover { box-shadow: 0 0 20px rgba(0,229,255,0.4); }

    /* ===== Stats ===== */
    .help-stats {
      background: #0B1120;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
      padding: 2.5rem 0;
    }
    @media (min-width: 768px) {
      .stats-grid { grid-template-columns: repeat(4, 1fr); }
    }
    .stats-item { text-align: center; }
    .stats-item strong {
      display: block;
      font-size: 1.7rem;
      font-weight: 800;
      color: var(--cyan);
    }
    .stats-item span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* ===== Section ===== */
    .section {
      padding: 4rem 0;
    }
    .section-head {
      text-align: center;
      max-width: 640px;
      margin: 0 auto 3rem;
    }
    .section-head h2 {
      font-size: 1.9rem;
      font-weight: 800;
      margin-bottom: 0.5rem;
    }
    .section-head p {
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    /* ===== FAQ Nav Cards ===== */
    .faq-nav-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1rem;
      margin-top: 1rem;
    }
    @media (min-width: 768px) {
      .faq-nav-grid { grid-template-columns: repeat(3, 1fr); }
    }
    .faq-nav-card {
      position: relative;
      display: block;
      background: var(--surface);
      border: 1px solid var(--surface-border);
      border-radius: 1.25rem;
      padding: 2rem 1.5rem;
      text-align: center;
      transition: all 0.3s;
      overflow: hidden;
    }
    .faq-nav-card::after {
      content: '';
      position: absolute;
      top: 0;
      left: 20%;
      right: 20%;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
    }
    .faq-nav-card:hover {
      transform: translateY(-5px);
      border-color: rgba(0,229,255,0.4);
      box-shadow: 0 15px 40px rgba(0,0,0,0.3);
    }
    .faq-nav-card i {
      font-size: 2rem;
      color: var(--cyan);
      margin-bottom: 1rem;
    }
    .faq-nav-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 0.4rem;
    }
    .faq-nav-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ===== FAQ Section ===== */
    .faq-section {
      background: linear-gradient(180deg, #0B1120 0%, rgba(11,17,32,0.6) 100%);
    }
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }
    @media (min-width: 1024px) {
      .faq-grid {
        grid-template-columns: 1fr 1fr;
        align-items: start;
      }
    }
    .faq-col {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }
    .faq-group {
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 1.25rem;
      padding: 1.5rem;
    }
    .faq-group h3 {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
      padding-bottom: 0.8rem;
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .faq-group h3 i { color: var(--cyan); }
    .faq-item {
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .faq-item:last-child { border-bottom: none; }
    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      background: none;
      border: none;
      color: var(--text);
      text-align: left;
      font-size: 0.95rem;
      font-weight: 600;
      padding: 1rem 0.25rem;
      cursor: pointer;
      transition: color 0.2s;
    }
    .faq-question:hover { color: var(--cyan); }
    .faq-icon {
      width: 28px;
      height: 28px;
      flex-shrink: 0;
      border-radius: 50%;
      background: rgba(0,229,255,0.1);
      color: var(--cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
      transition: transform 0.3s, background 0.3s;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: var(--cyan);
      color: #0B1120;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
    }
    .faq-answer p {
      color: var(--text-muted);
      font-size: 0.88rem;
      line-height: 1.8;
      padding: 0 0.25rem 1rem;
    }

    /* ===== Service Card ===== */
    .service-card {
      position: relative;
      background: linear-gradient(145deg, rgba(0,229,255,0.08), rgba(245,158,11,0.05));
      border: 1px solid rgba(0,229,255,0.2);
      border-radius: 1.25rem;
      padding: 1.5rem;
      text-align: center;
    }
    .service-card img {
      width: 100%;
      border-radius: 0.75rem;
      margin-bottom: 1rem;
      max-height: 140px;
      object-fit: cover;
    }
    .service-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 0.4rem;
    }
    .service-card p {
      color: var(--text-muted);
      font-size: 0.85rem;
      margin-bottom: 1rem;
    }
    .service-times {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0.75rem;
      margin-bottom: 1rem;
    }
    .service-times div {
      background: rgba(255,255,255,0.06);
      border-radius: 0.75rem;
      padding: 0.7rem 0.5rem;
    }
    .service-times strong {
      display: block;
      font-size: 0.95rem;
      color: var(--cyan);
    }
    .service-times span {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* ===== CTA ===== */
    .help-cta {
      position: relative;
      background-size: cover;
      background-position: center;
      padding: 4.5rem 0;
      text-align: center;
    }
    .help-cta::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(0,229,255,0.14), rgba(11,17,32,0.75) 70%);
    }
    .help-cta .container { position: relative; z-index: 2; }
    .help-cta h2 {
      font-size: 1.9rem;
      font-weight: 800;
      margin-bottom: 0.6rem;
    }
    .help-cta p {
      color: var(--text-muted);
      margin-bottom: 1.8rem;
    }
    .cta-btns {
      display: flex;
      justify-content: center;
      gap: 1rem;
      flex-wrap: wrap;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--bg-deep);
      border-top: 1px solid rgba(255,255,255,0.08);
      padding: 3rem 0 1.5rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2.5rem;
      margin-bottom: 2rem;
    }
    @media (min-width: 768px) {
      .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; }
    }
    .footer-brand p {
      color: var(--text-muted);
      font-size: 0.85rem;
      margin-top: 1rem;
      max-width: 280px;
      line-height: 1.8;
    }
    .footer-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 1rem;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.7rem;
    }
    .footer-links a,
    .footer-contact li {
      color: var(--text-muted);
      font-size: 0.85rem;
      transition: color 0.2s;
    }
    .footer-links a:hover { color: var(--cyan); }
    .footer-contact {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.7rem;
      color: var(--text-muted);
      font-size: 0.85rem;
    }
    .footer-contact i {
      color: var(--cyan);
      margin-right: 0.5rem;
      width: 1rem;
    }
    .footer-copyright {
      border-top: 1px solid rgba(255,255,255,0.06);
      padding-top: 1.5rem;
      text-align: center;
      color: var(--text-weak);
      font-size: 0.82rem;
    }
    .footer-copyright a {
      color: var(--text-weak);
      margin: 0 0.4rem;
    }
    .footer-copyright a:hover { color: var(--cyan); }

    /* ===== Mobile ===== */
    @media (max-width: 1023px) {
      .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(11,17,32,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1.5rem 2rem;
        gap: 1.2rem;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        transform: translateY(-130%);
        transition: transform 0.3s ease;
        z-index: 45;
      }
      .nav-links.open { transform: translateY(0); }
      .menu-toggle { display: inline-flex; }
      .nav-actions .countdown-badge { display: none; }
      .help-hero { min-height: 400px; }
      .help-hero h1 { font-size: 2rem; }
    }
    @media (max-width: 520px) {
      .header-inner { gap: 0.6rem; }
      .logo { font-size: 1.05rem; }
      .logo-icon { width: 34px; height: 34px; }
      .help-hero { min-height: 360px; }
      .help-hero h1 { font-size: 1.6rem; }
      .help-hero .subtitle { font-size: 0.95rem; }
      .search-bar button { padding: 0.5rem 1rem; font-size: 0.8rem; }
      .stats-grid { gap: 1rem; }
      .stats-item strong { font-size: 1.3rem; }
      .section { padding: 2.5rem 0; }
      .section-head h2 { font-size: 1.5rem; }
    }

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