/* roulang page: index */
:root {
  --bg-primary: #0B1220;
  --bg-secondary: #0F1A2E;
  --bg-deep: #070D17;
  --glass-bg: rgba(255,255,255,0.06);
  --glass-bg-high: rgba(255,255,255,0.12);
  --accent: #38E1FF;
  --accent-secondary: #8B9DFC;
  --accent-warm: #FFB86B;
  --text-primary: #F2F6FB;
  --text-secondary: #9AA9BE;
  --text-muted: #67768C;
  --border-color: rgba(255,255,255,0.10);
  --border-strong: rgba(255,255,255,0.18);
  --success: #34D399;
  --danger: #F87171;
  --radius-card: 18px;
  --radius-btn: 12px;
  --radius-tag: 999px;
  --shadow-card: 0 12px 40px rgba(2, 8, 23, 0.45);
  --shadow-glow: 0 0 24px rgba(56,225,255,0.28), 0 4px 16px rgba(56,225,255,0.15);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
  --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
  --transition: 150ms ease-out;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 14px; color: var(--text-primary); }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section { padding: 96px 0; }

.section-alt { background: var(--bg-secondary); }

.section-label {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: 28px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 48px;
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  border-radius: 99px;
  background: var(--accent);
  margin-top: 12px;
  box-shadow: 0 0 12px rgba(56,225,255,0.4);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #0B1220;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
  background: #6eeaff;
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(56,225,255,0.4), 0 6px 20px rgba(56,225,255,0.2);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 0 16px rgba(56,225,255,0.2);
}
.btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  border-color: var(--accent);
  background: rgba(56,225,255,0.08);
  color: var(--accent);
}
.btn-ghost:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-warm {
  background: var(--accent-warm);
  color: #0B1220;
  box-shadow: 0 0 20px rgba(255,184,107,0.25);
}
.btn-warm:hover {
  background: #ffc98a;
  transform: translateY(-1px);
  box-shadow: 0 0 28px rgba(255,184,107,0.4);
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* Tags / Badges */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  font-size: 12px;
  font-weight: 600;
  background: rgba(56,225,255,0.12);
  color: var(--accent);
  border: 1px solid rgba(56,225,255,0.25);
  letter-spacing: 0.5px;
}
.tag-warm {
  background: rgba(255,184,107,0.15);
  color: var(--accent-warm);
  border-color: rgba(255,184,107,0.3);
}

/* Header / Nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  z-index: 1000;
  background: transparent;
  transition: background 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(11,18,32,0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-color);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 20px;
}
.nav-left { flex-shrink: 0; }
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.logo-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  background: rgba(56,225,255,0.15);
  border: 1px solid rgba(56,225,255,0.3);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
}
.nav-center {
  flex: 1;
  max-width: 640px;
  margin: 0 auto;
}
.search-box {
  display: flex;
  align-items: center;
  height: 48px;
  background: rgba(255,255,255,0.08);
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.08);
  padding: 0 20px;
  transition: all var(--transition);
}
.search-box:focus-within {
  background: rgba(255,255,255,0.12);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(56,225,255,0.15);
}
.search-box svg { flex-shrink: 0; width: 18px; height: 18px; stroke: var(--text-secondary); margin-right: 12px; }
.search-box input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  height: 100%;
  font-size: 14px;
  color: var(--text-primary);
}
.search-box input::placeholder { color: var(--text-muted); }
.search-kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.12);
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}
.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
  padding: 6px 2px;
  position: relative;
}
.nav-link:hover { color: var(--accent); }
.nav-link.active { color: var(--text-primary); }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(56,225,255,0.4);
}
.nav-cta { padding: 8px 20px; font-size: 14px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-primary);
  transition: all 200ms ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 64px 0 0 auto;
  width: 100%;
  max-width: 360px;
  background: rgba(11,18,32,0.96);
  backdrop-filter: blur(24px);
  z-index: 999;
  padding: 32px 24px;
  transform: translateX(100%);
  transition: transform 250ms ease;
  border-left: 1px solid var(--border-color);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu .mobile-nav-links { display: flex; flex-direction: column; gap: 8px; }
.mobile-menu .nav-link {
  font-size: 18px;
  padding: 12px 8px;
  border-radius: 8px;
  border-bottom: 1px solid var(--border-color);
}
.mobile-menu .nav-link.active { color: var(--accent); background: rgba(56,225,255,0.06); }
.mobile-menu .btn { margin-top: 24px; width: 100%; }

/* Mobile Search Overlay */
.mobile-search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11,18,32,0.97);
  backdrop-filter: blur(20px);
  z-index: 1001;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 80px 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
}
.mobile-search-overlay.open { opacity: 1; pointer-events: auto; }
.mobile-search-overlay .search-box { width: 100%; max-width: 480px; }
.mobile-search-overlay .search-cancel {
  margin-left: 12px;
  color: var(--text-secondary);
  font-size: 14px;
  white-space: nowrap;
  padding: 0 8px;
}

/* Hero */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding: 120px 0 60px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center;
  opacity: 0.35;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,18,32,0.8) 0%, rgba(11,18,32,0.5) 50%, var(--bg-primary) 100%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-glow {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(56,225,255,0.18), transparent 60%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(56,225,255,0.1);
  border: 1px solid rgba(56,225,255,0.25);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: 52px;
  line-height: 1.15;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 24px;
  animation: fadeInUp 600ms ease-out;
}
.hero h1 .highlight {
  color: var(--accent);
  text-shadow: 0 0 30px rgba(56,225,255,0.4);
}
.hero-subtitle {
  font-size: 18px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 560px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 600ms ease-out 150ms both;
}
.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 48px;
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}
.stat-item { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}
.stat-num span { color: var(--accent); }
.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}
.hero-line {
  position: absolute;
  bottom: 80px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56,225,255,0.4), transparent);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* News Section */
.news-section { position: relative; }
.news-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.news-card {
  background: var(--glass-bg);
  border-radius: var(--radius-card);
  padding: 28px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.08);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
}
.news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56,225,255,0.3);
  box-shadow: 0 16px 48px rgba(2,8,23,0.5), 0 0 20px rgba(56,225,255,0.08);
}
.news-card-tag { align-self: flex-start; }
.news-card h3 {
  font-size: 20px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--text-primary);
}
.news-card h3 a { color: inherit; }
.news-card h3 a:hover { color: var(--accent); }
.news-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}
.news-card-meta span {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--text-muted);
}
.news-card-meta a {
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  transition: all var(--transition);
}
.news-card-meta a:hover { transform: translateX(4px); display: inline-block; }

.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
  font-size: 15px;
  background: var(--glass-bg);
  border-radius: var(--radius-card);
  border: 1px dashed var(--border-color);
}

/* Agenda Timeline */
.agenda-section { background: var(--bg-secondary); position: relative; }
.agenda-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}
.timeline {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 0;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, rgba(56,225,255,0.3), rgba(56,225,255,0.3), transparent);
}
.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 40px;
  margin-bottom: 56px;
  position: relative;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: 50%;
  top: 10px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 8px rgba(56,225,255,0.25), 0 0 20px var(--accent);
  transform: translateX(-50%);
}
.timeline-time {
  flex: 0 0 calc(50% - 60px);
  text-align: right;
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.4;
  padding-top: 4px;
}
.timeline-content {
  flex: 0 0 calc(50% - 60px);
  text-align: left;
}
.timeline-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.timeline-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Highlights */
.highlights-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}
.highlight-main {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  min-height: 400px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
}
.highlight-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}
.highlight-main::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(11,18,32,0.85) 100%);
}
.highlight-main-content {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 32px;
  z-index: 2;
}
.highlight-main-content h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.highlight-main-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.highlight-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.highlight-card {
  flex: 1;
  background: var(--glass-bg);
  border-radius: var(--radius-card);
  padding: 28px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.08);
  transition: all var(--transition);
}
.highlight-card:hover {
  border-color: rgba(56,225,255,0.3);
  transform: translateY(-3px);
}
.highlight-card .icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(56,225,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  transition: all var(--transition);
}
.highlight-card .icon svg { width: 20px; height: 20px; stroke: var(--accent); }
.highlight-card:hover .icon {
  background: rgba(56,225,255,0.2);
  box-shadow: 0 0 20px rgba(56,225,255,0.2);
}
.highlight-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.highlight-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Guests */
.guests-section { background: var(--bg-secondary); }
.guests-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.guest-card {
  background: var(--glass-bg);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.08);
  text-align: center;
  transition: all var(--transition);
}
.guest-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56,225,255,0.25);
}
.guest-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(56,225,255,0.3), rgba(139,157,252,0.3));
  border: 2px solid rgba(56,225,255,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 auto 20px;
  box-shadow: 0 0 30px rgba(56,225,255,0.15);
}
.guest-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.guest-title {
  display: inline-block;
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.guest-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Tickets */
.tickets-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.ticket-card {
  background: var(--glass-bg);
  border-radius: var(--radius-card);
  padding: 40px 32px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.08);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition);
}
.ticket-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.2); }
.ticket-card.ticket-recommended {
  border: 2px solid rgba(56,225,255,0.5);
  transform: translateY(-8px);
  background: linear-gradient(180deg, rgba(56,225,255,0.06), rgba(255,255,255,0.03));
  box-shadow: 0 20px 60px rgba(2,8,23,0.5), 0 0 30px rgba(56,225,255,0.1);
}
.ticket-card.ticket-recommended:hover { transform: translateY(-10px); }
.ticket-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-warm);
  color: #0B1220;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 999px;
  letter-spacing: 1px;
  box-shadow: 0 2px 12px rgba(255,184,107,0.3);
}
.ticket-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.ticket-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 24px;
}
.ticket-price .currency {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-secondary);
}
.ticket-price .amount {
  font-family: var(--font-num);
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
}
.ticket-price .unit {
  font-size: 13px;
  color: var(--text-muted);
}
.ticket-features {
  list-style: none;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}
.ticket-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.ticket-features li .check {
  flex-shrink: 0;
  color: var(--success);
  font-weight: 700;
  margin-top: 2px;
}
.ticket-features li .cross {
  flex-shrink: 0;
  color: var(--text-muted);
}

/* CTA Form */
.cta-section {
  position: relative;
  background: var(--bg-secondary);
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.cta-section::after {
  content: "";
  position: absolute;
  top: -60px;
  left: -60px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(56,225,255,0.12), transparent 60%);
}
.cta-card {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
  background: rgba(255,255,255,0.05);
  border-radius: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.08);
  padding: 48px;
}
.cta-card h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 12px;
}
.cta-card > p {
  text-align: center;
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 36px;
}
.signup-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}
.form-control {
  height: 48px;
  border-radius: 12px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 0 16px;
  color: var(--text-primary);
  font-size: 14px;
  transition: all var(--transition);
  outline: none;
  width: 100%;
}
.form-control::placeholder { color: var(--text-muted); }
.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(56,225,255,0.15);
  background: rgba(255,255,255,0.1);
}
select.form-control {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%239AA9BE' stroke-width='2'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}
select.form-control option { background: var(--bg-secondary); color: var(--text-primary); }
.form-note {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}
.form-note a { color: var(--accent); text-decoration: underline; }
.form-success {
  display: none;
  text-align: center;
  padding: 20px;
  background: rgba(52,211,153,0.1);
  border: 1px solid rgba(52,211,153,0.3);
  border-radius: 12px;
  color: var(--success);
  font-weight: 600;
}
.form-success.show { display: block; }

/* FAQ */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--glass-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.08);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.active { border-color: rgba(56,225,255,0.25); }
.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  width: 100%;
  text-align: left;
  background: transparent;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
}
.faq-question:hover { background: rgba(255,255,255,0.03); }
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(56,225,255,0.12);
  border: 1px solid rgba(56,225,255,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
}
.faq-toggle {
  margin-left: auto;
  font-size: 22px;
  font-weight: 400;
  color: var(--text-muted);
  transition: transform 250ms ease;
  flex-shrink: 0;
}
.faq-item.active .faq-toggle { transform: rotate(45deg); color: var(--accent); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 250ms ease;
  padding: 0 24px;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 24px 24px;
}
.faq-answer p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  padding-left: 44px;
}

/* Footer */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-color);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .logo-text {
  font-size: 22px;
  margin-bottom: 8px;
  display: inline-block;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 280px;
  line-height: 1.6;
}
.footer-links h4,
.footer-contact h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 4px 0;
  text-decoration: none;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent); }
.footer-contact p {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 4px 0;
}
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom span {
  font-size: 13px;
  color: var(--text-muted);
}

/* Scroll top */
.scroll-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(56,225,255,0.12);
  border: 1px solid rgba(56,225,255,0.3);
  color: var(--accent);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: all 200ms ease;
  backdrop-filter: blur(8px);
}
.scroll-top.visible { opacity: 1; pointer-events: auto; }
.scroll-top:hover { background: rgba(56,225,255,0.25); transform: translateY(-3px); }

/* Responsive */
@media (max-width: 1023px) {
  .hero h1 { font-size: 42px; }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .highlights-layout { grid-template-columns: 1fr; }
  .highlight-main { min-height: 320px; }
  .tickets-grid { gap: 16px; }
  .ticket-card { padding: 32px 24px; }
  .ticket-card.ticket-recommended { transform: translateY(-4px); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-center { display: none; }
  .nav-right .nav-link, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
}

@media (max-width: 767px) {
  .section { padding: 56px 0; }
  .container { padding-left: 16px; padding-right: 16px; }
  .hero { min-height: 70vh; padding: 100px 0 40px; }
  .hero h1 { font-size: 36px; }
  .hero-subtitle { font-size: 16px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { flex-wrap: wrap; gap: 24px; margin-top: 48px; }
  .stat-num { font-size: 32px; }
  .news-grid { grid-template-columns: 1fr; }
  .timeline::before { left: 20px; }
  .timeline-item { flex-direction: column; gap: 8px; padding-left: 48px; }
  .timeline-dot { left: 20px; top: 6px; }
  .timeline-time { text-align: left; flex: none; font-size: 16px; }
  .timeline-content { flex: none; }
  .guests-grid { grid-template-columns: 1fr; }
  .tickets-grid { grid-template-columns: 1fr; gap: 24px; }
  .ticket-card.ticket-recommended { transform: none; }
  .ticket-card.ticket-recommended:hover { transform: translateY(-4px); }
  .form-row { grid-template-columns: 1fr; }
  .cta-card { padding: 32px 24px; border-radius: 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .highlight-main { min-height: 260px; }
  .highlight-main-content { padding: 24px; }
  .btn-lg { padding: 14px 24px; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 30px; }
  .section-title { font-size: 24px; }
  .news-card { padding: 20px; }
  .guest-card { padding: 24px; }
  .ticket-card { padding: 28px 20px; }
  .cta-card { padding: 24px 16px; }
}

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

/* roulang page: category1 */
:root{
  --bg:#0B1220;
  --bg-2:#0F1A2E;
  --bg-deep:#070D17;
  --glass:rgba(255,255,255,0.06);
  --glass-2:rgba(255,255,255,0.12);
  --cyan:#38E1FF;
  --indigo:#8B9DFC;
  --amber:#FFB86B;
  --green:#34D399;
  --red:#F87171;
  --text:#F2F6FB;
  --text-2:#9AA9BE;
  --text-3:#67768C;
  --line:rgba(255,255,255,0.10);
  --radius:18px;
  --radius-sm:12px;
  --radius-xs:8px;
  --shadow:0 12px 40px rgba(2,8,23,0.45);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter","DIN Alternate","Roboto Mono",monospace;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font-cn);font-size:16px;line-height:1.75;font-weight:400;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.text-gradient{background:linear-gradient(90deg,var(--cyan),var(--indigo));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.text-amber{color:var(--amber)}
/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:600;padding:10px 24px;border-radius:var(--radius-sm);border:none;cursor:pointer;text-decoration:none;transition:all .15s var(--ease);line-height:1.3;letter-spacing:.2px}
.btn-primary{background:var(--cyan);color:#0B1220;box-shadow:0 0 24px rgba(56,225,255,.28),0 4px 16px rgba(56,225,255,.15)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 32px rgba(56,225,255,.4),0 6px 20px rgba(56,225,255,.2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--glass);border:1px solid rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(56,225,255,.08);color:var(--cyan)}
.btn-amber{background:var(--amber);color:#3A2308;box-shadow:0 0 20px rgba(255,184,107,.22)}
.btn-amber:hover{transform:translateY(-1px);box-shadow:0 0 30px rgba(255,184,107,.32)}
.btn-lg{padding:14px 34px;font-size:16px}
/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:64px;display:flex;align-items:center;background:transparent;border-bottom:1px solid transparent;transition:background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.site-header.scrolled{background:rgba(11,18,32,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom-color:var(--line);box-shadow:0 8px 32px rgba(2,8,23,.35)}
.nav-container{display:flex;align-items:center;gap:16px;width:100%}
.nav-left{flex-shrink:0}
.logo{display:flex;align-items:center;gap:8px;white-space:nowrap}
.logo-text{font-size:18px;font-weight:800;color:var(--text);letter-spacing:.5px;font-family:var(--font-cn)}
.logo-badge{font-size:11px;padding:2px 9px;border:1px solid rgba(56,225,255,.5);color:var(--cyan);border-radius:999px;background:rgba(56,225,255,.08);font-weight:600;letter-spacing:1px}
.nav-center{flex:1;max-width:640px;margin:0 auto}
.search-box{display:flex;align-items:center;gap:10px;height:46px;padding:0 18px;background:rgba(255,255,255,.07);border:1px solid transparent;border-radius:999px;transition:all .15s var(--ease)}
.search-box svg{width:18px;height:18px;stroke:var(--text-2);flex-shrink:0;fill:none;stroke-width:2}
.search-box input{flex:1;background:transparent;border:none;outline:none;color:var(--text);font-size:14px;min-width:0}
.search-box input::placeholder{color:var(--text-3)}
.search-box input::-webkit-search-cancel-button{display:none}
.search-box:focus-within{background:rgba(255,255,255,.12);border-color:var(--cyan);box-shadow:0 0 0 4px rgba(56,225,255,.15)}
.search-kbd{font-size:11px;color:var(--text-3);border:1px solid var(--line);padding:2px 8px;border-radius:6px;font-family:var(--font-num);white-space:nowrap;background:rgba(255,255,255,.04)}
.nav-right{display:flex;align-items:center;gap:4px;flex-shrink:0}
.nav-link{font-size:14px;color:var(--text-2);padding:8px 14px;border-radius:var(--radius-xs);transition:all .15s var(--ease);white-space:nowrap}
.nav-link:hover{color:var(--cyan)}
.nav-link.active{color:var(--cyan);background:rgba(56,225,255,.08)}
.nav-cta{margin-left:10px}
.nav-toggle,.mobile-search-btn{display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--glass);border-radius:var(--radius-xs);align-items:center;justify-content:center;cursor:pointer;transition:all .15s var(--ease)}
.nav-toggle:hover,.mobile-search-btn:hover{border-color:var(--cyan)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:all .25s var(--ease)}
.nav-toggle span+span{margin-top:5px}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-search-btn svg,.nav-toggle svg{width:18px;height:18px}
/* ===== Mobile Drawer ===== */
.mobile-drawer{position:fixed;top:64px;left:0;right:0;bottom:0;background:rgba(11,18,32,.96);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:999;display:flex;flex-direction:column;padding:24px;gap:20px;transform:translateX(100%);transition:transform .3s var(--ease);overflow-y:auto}
.mobile-drawer.open{transform:translateX(0)}
.mobile-drawer .drawer-search{display:flex}
.mobile-drawer .drawer-links{display:flex;flex-direction:column;gap:4px}
.mobile-drawer .drawer-links a{font-size:20px;font-weight:600;padding:14px 10px;border-bottom:1px solid var(--line);color:var(--text-2);transition:color .15s}
.mobile-drawer .drawer-links a:hover,.mobile-drawer .drawer-links a.active{color:var(--cyan)}
/* ===== Hero ===== */
.category-hero{position:relative;padding:170px 0 90px;min-height:88vh;display:flex;align-items:center;overflow:hidden;background:
  radial-gradient(circle at 78% 18%,rgba(56,225,255,.16),transparent 55%),
  radial-gradient(circle at 10% 80%,rgba(139,157,252,.1),transparent 45%),
  var(--bg)}
.category-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:60px 60px;pointer-events:none}
.category-hero::after{content:"";position:absolute;left:0;right:0;bottom:80px;height:1px;background:linear-gradient(90deg,transparent,rgba(56,225,255,.3),transparent)}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center;position:relative;z-index:2}
.hero-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.hero-breadcrumb a{color:var(--text-3);transition:color .15s}
.hero-breadcrumb a:hover{color:var(--cyan)}
.hero-breadcrumb .sep{color:var(--text-3);opacity:.5}
.category-hero h1{font-size:52px;line-height:1.15;font-weight:800;letter-spacing:.5px;margin-bottom:8px}
.category-hero h1 .official-tag{display:inline-block;vertical-align:middle;font-size:12px;font-weight:600;color:var(--amber);border:1px solid rgba(255,184,107,.4);background:rgba(255,184,107,.08);padding:2px 12px;border-radius:999px;margin-left:12px;letter-spacing:1px;line-height:1.6}
.hero-desc{font-size:17px;color:var(--text-2);max-width:560px;margin:16px 0 32px;line-height:1.8}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:0;margin-top:48px;border-top:1px solid var(--line);padding-top:24px;max-width:520px}
.stat-item{flex:1;padding-right:20px}
.stat-item+.stat-item{padding-left:20px;border-left:1px solid var(--line)}
.stat-num{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--cyan);line-height:1.2}
.stat-label{font-size:13px;color:var(--text-3);margin-top:4px}
.hero-media{position:relative}
.hero-media::before{content:"";position:absolute;inset:14px;border:1px dashed rgba(56,225,255,.4);border-radius:24px;z-index:0;transform:rotate(2deg)}
.hero-media img{position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:22px;box-shadow:var(--shadow),0 0 0 1px rgba(255,255,255,.08),0 0 80px rgba(56,225,255,.08);transition:transform .3s var(--ease)}
.hero-media img:hover{transform:scale(1.015)}
.hero-media .media-badge{position:absolute;z-index:2;bottom:18px;left:18px;background:rgba(11,18,32,.78);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:999px;padding:6px 16px;font-size:12px;color:var(--text-2)}
.hero-media .media-badge strong{color:var(--cyan);font-family:var(--font-num)}
/* ===== Section common ===== */
.section{padding:96px 0;position:relative}
.section-alt{background:var(--bg-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:2px;color:var(--cyan);text-transform:uppercase;margin-bottom:10px;font-family:var(--font-num)}
.section-kicker::before{content:"";width:20px;height:2px;background:var(--cyan);display:inline-block}
.section-title{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:.3px}
.section-desc{color:var(--text-2);max-width:640px;font-size:15px;margin-top:8px}
/* ===== Intro ===== */
.intro-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center}
.intro-media{position:relative}
.intro-media::before{content:"";position:absolute;top:-12px;left:-12px;right:24px;bottom:24px;border:1px solid rgba(139,157,252,.35);border-radius:20px;z-index:0}
.intro-media img{position:relative;z-index:1;width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:18px;box-shadow:var(--shadow),0 0 0 1px rgba(255,255,255,.06)}
.intro-content .section-kicker{margin-bottom:12px}
.intro-content h2{font-size:28px;line-height:1.3;font-weight:700;margin-bottom:16px}
.intro-content p{color:var(--text-2);margin-bottom:16px;font-size:15px}
.intro-list{list-style:none;margin-top:24px}
.intro-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.08);font-size:14px;color:var(--text-2)}
.intro-list li:last-child{border-bottom:none}
.intro-list svg{width:18px;height:18px;flex-shrink:0;margin-top:4px;stroke:var(--cyan);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
/* ===== Feature cards ===== */
.feature-grid{display:grid;grid-template-columns:1.2fr 1fr;grid-template-rows:1fr 1fr;gap:24px}
.feature-card{position:relative;background:var(--glass);border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);overflow:hidden;transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(56,225,255,.3);box-shadow:var(--shadow),0 20px 50px rgba(2,8,23,.5),inset 0 1px 0 rgba(255,255,255,.1)}
.feature-card.feature-lg{grid-row:span 2}
.feature-card .card-media{position:relative;height:200px;overflow:hidden}
.feature-card.feature-lg .card-media{height:100%;min-height:360px}
.feature-card .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.feature-card:hover .card-media img{transform:scale(1.04)}
.feature-card .card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(11,18,32,.72))}
.feature-card .card-body{position:relative;padding:24px;display:flex;flex-direction:column;flex:1}
.feature-card.feature-lg .card-body{position:absolute;bottom:0;left:0;right:0;z-index:2;background:linear-gradient(180deg,transparent,rgba(11,18,32,.9))}
.card-tag{display:inline-flex;align-items:center;font-size:12px;color:var(--amber);border:1px solid rgba(255,184,107,.3);background:rgba(255,184,107,.07);padding:2px 12px;border-radius:999px;margin-bottom:12px;width:fit-content;letter-spacing:.5px}
.feature-card h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:10px}
.feature-card .card-meta{font-size:12px;color:var(--text-3);font-family:var(--font-num);margin-bottom:8px;letter-spacing:.5px}
.feature-card p{font-size:14px;color:var(--text-2);line-height:1.7}
.feature-card .card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--cyan);transition:gap .2s var(--ease)}
.feature-card .card-link:hover{gap:10px}
.feature-card .card-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
/* ===== Highlights list ===== */
.highlights-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
.highlights-intro h2{font-size:28px;font-weight:700;line-height:1.3;margin-bottom:14px}
.highlights-intro p{color:var(--text-2);font-size:15px;margin-bottom:24px}
.highlights-intro .btn{margin-top:8px}
.highlight-list{list-style:none;border-top:1px solid var(--line)}
.highlight-list li{display:grid;grid-template-columns:60px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);transition:background .15s var(--ease)}
.highlight-list li:hover{background:rgba(255,255,255,.02)}
.highlight-num{font-family:var(--font-num);font-size:14px;color:var(--cyan);border:1px solid rgba(56,225,255,.25);width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(56,225,255,.06)}
.highlight-list h3{font-size:17px;font-weight:600;margin-bottom:6px}
.highlight-list p{font-size:14px;color:var(--text-2);line-height:1.7}
/* ===== Timeline ===== */
.timeline{position:relative;max-width:760px;margin:0 auto;padding:0}
.timeline::before{content:"";position:absolute;left:10px;top:0;bottom:0;width:1px;background:linear-gradient(180deg,transparent,rgba(56,225,255,.4) 12%,rgba(56,225,255,.4) 88%,transparent)}
.timeline-node{position:relative;padding-left:48px;margin-bottom:40px;display:grid;grid-template-columns:100px 1fr;gap:16px}
.timeline-node:last-child{margin-bottom:0}
.timeline-node::before{content:"";position:absolute;left:5px;top:12px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 8px rgba(56,225,255,.25),0 0 20px rgba(56,225,255,.4)}
.timeline-empty{position:absolute;left:5px;top:12px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 8px rgba(56,225,255,.25)}
.timeline-step{position:absolute;left:-34px;top:6px;font-family:var(--font-num);font-size:11px;color:var(--text-3);letter-spacing:1px}
.timeline-time{font-family:var(--font-num);font-weight:600;color:var(--cyan);font-size:14px;padding-top:4px}
.timeline-card{background:var(--glass);border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);padding:22px 26px;transition:border-color .2s var(--ease)}
.timeline-card:hover{border-color:rgba(56,225,255,.25)}
.timeline-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.timeline-card p{font-size:14px;color:var(--text-2);line-height:1.7}
/* ===== FAQ ===== */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{background:var(--glass);border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);margin-bottom:14px;overflow:hidden;transition:border-color .2s var(--ease)}
.faq-item.open{border-color:rgba(56,225,255,.3)}
.faq-question{width:100%;display:flex;align-items:center;gap:16px;background:transparent;border:none;cursor:pointer;padding:20px 24px;text-align:left}
.faq-q-icon{width:28px;height:28px;flex-shrink:0;border-radius:50%;background:rgba(56,225,255,.1);border:1px solid rgba(56,225,255,.3);color:var(--cyan);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.faq-q-text{flex:1;font-size:16px;font-weight:600;color:var(--text);line-height:1.4}
.faq-toggle{width:24px;height:24px;flex-shrink:0;position:relative;transition:transform .25s var(--ease)}
.faq-toggle::before,.faq-toggle::after{content:"";position:absolute;background:var(--text-2);border-radius:2px;transition:background .2s}
.faq-toggle::before{width:14px;height:2px;top:11px;left:5px}
.faq-toggle::after{width:2px;height:14px;top:5px;left:11px}
.faq-item.open .faq-toggle{transform:rotate(45deg)}
.faq-item.open .faq-toggle::before,.faq-item.open .faq-toggle::after{background:var(--cyan)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-answer-inner{padding:0 24px 22px 68px;font-size:15px;color:var(--text-2);line-height:1.75}
/* ===== CTA ===== */
.cta-section{position:relative;padding:110px 0;overflow:hidden;background:
  radial-gradient(circle at 85% 20%,rgba(56,225,255,.2),transparent 50%),
  radial-gradient(circle at 10% 85%,rgba(139,157,252,.12),transparent 45%),
  var(--bg)}
.cta-section::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:60px 60px;pointer-events:none}
.cta-inner{position:relative;z-index:2;max-width:680px;margin:0 auto;text-align:center}
.cta-inner .section-kicker{justify-content:center}
.cta-inner .section-kicker::before,.cta-inner .section-kicker::after{content:"";width:20px;height:2px;background:var(--cyan)}
.cta-inner .section-kicker::after{background:var(--cyan)}
.cta-title{font-size:32px;font-weight:800;line-height:1.25;margin-bottom:14px}
.cta-desc{font-size:15px;color:var(--text-2);margin-bottom:36px;line-height:1.7}
.signup-card{background:var(--glass);border-radius:22px;border:1px solid var(--line);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);padding:36px;text-align:left;backdrop-filter:blur(8px)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.full{grid-column:1/-1}
.form-field label{font-size:13px;font-weight:600;color:var(--text-2)}
.form-field input,.form-field select{height:48px;padding:0 16px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-sm);color:var(--text);font-size:14px;outline:none;transition:all .15s var(--ease)}
.form-field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239AA9BE' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}
.form-field input:focus,.form-field select:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(56,225,255,.15);background:rgba(255,255,255,.1)}
.form-tip{font-size:13px;color:var(--text-3);margin-top:12px;text-align:center}
.form-tip a{color:var(--text-2);text-decoration:underline;text-underline-offset:4px;transition:color .15s}
.form-tip a:hover{color:var(--cyan)}
.submit-row{margin-top:24px;display:flex;justify-content:center}
.btn-submit{width:100%;max-width:340px}
.form-success{display:none;align-items:center;gap:16px;background:rgba(52,211,153,.08);border:1px solid rgba(52,211,153,.3);border-radius:16px;padding:24px 28px;margin-bottom:20px}
.form-success svg{width:36px;height:36px;flex-shrink:0;stroke:var(--green);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.form-success h4{font-size:18px;font-weight:600;color:var(--green);margin-bottom:4px}
.form-success p{font-size:14px;color:var(--text-2)}
/* ===== Footer ===== */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .logo-text{font-size:20px}
.footer-brand p{font-size:14px;color:var(--text-3);margin-top:14px;line-height:1.7;max-width:320px}
.footer-links h4,.footer-contact h4{font-size:15px;font-weight:600;color:var(--text);margin-bottom:18px}
.footer-links a{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);margin-bottom:12px;transition:color .15s}
.footer-links a::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--cyan);opacity:.5;transition:opacity .15s}
.footer-links a:hover{color:var(--cyan)}
.footer-links a:hover::before{opacity:1}
.footer-contact p{font-size:14px;color:var(--text-3);margin-bottom:10px;line-height:1.6}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
/* ===== Responsive ===== */
@media (max-width:1024px){
  .category-hero{padding:150px 0 70px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-media{max-width:560px}
  .hero-stats{max-width:100%}
  .highlights-wrap{grid-template-columns:1fr;gap:32px}
  .intro-grid{grid-template-columns:1fr;gap:40px}
  .feature-grid{grid-template-columns:1fr 1fr}
  .feature-card.feature-lg{grid-row:span 1}
  .feature-card.feature-lg .card-media{min-height:220px;height:200px}
  .feature-card.feature-lg .card-body{position:relative;background:none}
  .feature-card.feature-lg .card-body{background:linear-gradient(180deg,transparent,rgba(11,18,32,.85))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .nav-center{display:none}
  .nav-right .nav-link{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .mobile-search-btn{display:flex}
  .category-hero{min-height:auto;padding:130px 0 60px}
  .category-hero h1{font-size:38px}
  .hero-stats{flex-direction:column;gap:16px}
  .stat-item{padding-right:0}
  .stat-item+.stat-item{padding-left:0;border-left:none;border-top:1px solid var(--line);padding-top:16px}
  .feature-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .section-head{flex-direction:column;align-items:flex-start}
  .timeline-node{grid-template-columns:1fr;gap:6px;padding-left:40px}
  .faq-answer-inner{padding-left:24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .category-hero h1{font-size:32px;line-height:1.25}
  .hero-actions .btn{flex:1;justify-content:center}
  .signup-card{padding:24px 20px}
  .cta-title{font-size:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto}
}

/* roulang page: article */
:root {
  --bg: #0B1220;
  --bg-2: #0F1A2E;
  --bg-3: #070D17;
  --primary: #38E1FF;
  --primary-rgb: 56, 225, 255;
  --secondary: #8B9DFC;
  --accent: #FFB86B;
  --text: #F2F6FB;
  --text-2: #9AA9BE;
  --text-3: #67768C;
  --border: rgba(255, 255, 255, 0.10);
  --glass: rgba(255, 255, 255, 0.06);
  --glass-high: rgba(255, 255, 255, 0.12);
  --success: #34D399;
  --danger: #F87171;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
  --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
  --r-card: 18px;
  --r-btn: 12px;
  --r-pill: 999px;
  --shadow-card: 0 12px 40px rgba(2, 8, 23, 0.45);
  --shadow-glow: 0 0 24px rgba(var(--primary-rgb), 0.28), 0 4px 16px rgba(var(--primary-rgb), 0.15);
  --container: 1280px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(/%23n)' opacity='0.03'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease-out, border-color 0.15s ease-out, background 0.15s ease-out, box-shadow 0.15s ease-out, transform 0.15s ease-out;
}

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

input,
select,
textarea {
  font-family: inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 820px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 13px 26px;
  border-radius: var(--r-btn);
  border: 1px solid transparent;
  transition: all 0.15s ease-out;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--primary);
  color: #06222E;
  border-color: rgba(56, 225, 255, 0.85);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  background: rgba(56, 225, 255, 0.88);
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(var(--primary-rgb), 0.4), 0 6px 20px rgba(var(--primary-rgb), 0.2);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 16px rgba(var(--primary-rgb), 0.2), 0 2px 8px rgba(var(--primary-rgb), 0.12);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.btn-ghost:hover {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.08);
  color: var(--primary);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

/* 顶部导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background: transparent;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(11, 18, 32, 0.82);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
  box-shadow: 0 8px 30px rgba(2, 8, 23, 0.28);
}

.nav-container {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 20px;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text);
  white-space: nowrap;
}

.logo-badge {
  font-size: 11px;
  font-weight: 600;
  color: #06222E;
  background: var(--primary);
  border-radius: var(--r-pill);
  padding: 2px 8px;
  letter-spacing: 1px;
}

.nav-center {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.search-box {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 640px;
  height: 46px;
  padding: 0 16px;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--r-pill);
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.search-box:focus-within {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.15);
}

.search-box svg {
  width: 18px;
  height: 18px;
  stroke: var(--text-2);
  flex-shrink: 0;
}

.search-box input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 15px;
}

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

.search-kbd {
  font-size: 12px;
  color: var(--text-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 8px;
  font-family: var(--font-num);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.nav-link {
  color: var(--text-2);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  text-decoration: none;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.15s ease-out;
}

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

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

.nav-cta {
  padding: 9px 20px;
  font-size: 14px;
}

.search-toggle-mobile {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-2);
}

.search-toggle-mobile:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.search-toggle-mobile svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s;
}

.nav-toggle:hover {
  border-color: rgba(var(--primary-rgb), 0.5);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

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

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

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

.mobile-menu {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 99;
  background: rgba(11, 18, 32, 0.96);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transform: translateY(-110%);
  transition: transform 0.25s;
}

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

.mobile-link {
  color: var(--text-2);
  padding: 12px 10px;
  border-radius: 10px;
  font-size: 16px;
  text-decoration: none;
}

.mobile-link:hover,
.mobile-link.active {
  color: var(--primary);
  background: rgba(var(--primary-rgb), 0.06);
}

.mobile-cta {
  margin-top: 10px;
}

.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(7, 13, 23, 0.96);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 80px 20px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
}

.search-overlay.open {
  opacity: 1;
  visibility: visible;
}

.search-overlay-inner {
  width: 100%;
  max-width: 640px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.overlay-search {
  height: 54px;
}

.search-cancel {
  background: none;
  border: none;
  color: var(--text-2);
  font-size: 15px;
  padding: 8px 12px;
  white-space: nowrap;
  transition: color 0.15s;
}

.search-cancel:hover {
  color: var(--primary);
}

/* 文章 Hero */
.article-hero {
  position: relative;
  padding: 140px 0 56px;
  background: url('/assets/images/backpic/back-2.png') center 30% / cover no-repeat;
}

.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.78) 0%, rgba(11, 18, 32, 0.30) 42%, rgba(11, 18, 32, 0.96) 100%);
}

.article-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 78% 22%, rgba(var(--primary-rgb), 0.16), transparent 55%);
}

.article-hero .container {
  position: relative;
  z-index: 2;
  max-width: 980px;
}

.article-hero-mark {
  position: absolute;
  top: 96px;
  right: 4%;
  z-index: 1;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(var(--primary-rgb), 0.35);
  writing-mode: vertical-rl;
  user-select: none;
  pointer-events: none;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-3);
  padding-bottom: 44px;
}

.breadcrumb a {
  color: var(--text-2);
  text-decoration: none;
}

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

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

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

.article-kicker {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--primary);
  border: 1px solid rgba(var(--primary-rgb), 0.35);
  border-radius: var(--r-pill);
  padding: 4px 14px;
  background: rgba(var(--primary-rgb), 0.10);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.article-title {
  font-size: 38px;
  line-height: 1.3;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 20px;
  letter-spacing: 0.01em;
  text-shadow: 0 4px 28px rgba(2, 8, 23, 0.6);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 14px;
  color: var(--text-2);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.meta-item .meta-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(var(--primary-rgb), 0.16);
  border: 1px solid rgba(var(--primary-rgb), 0.4);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--primary);
  font-weight: 700;
}

.meta-item.meta-date {
  font-family: var(--font-num);
}

.meta-divider {
  color: var(--text-3);
}

/* 正文区域 */
.article-content-wrap {
  padding: 48px 0 0;
}

.article-body {
  font-size: 17px;
  line-height: 1.8;
  color: #D6E1EF;
}

.article-body > *:first-child {
  margin-top: 0 !important;
}

.article-body p {
  margin: 0 0 20px;
  letter-spacing: 0.01em;
}

.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin: 48px 0 16px;
  padding-left: 16px;
  border-left: 3px solid var(--primary);
  line-height: 1.3;
}

.article-body h3 {
  font-size: 21px;
  font-weight: 600;
  color: var(--text);
  margin: 32px 0 12px;
}

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

.article-body blockquote {
  margin: 24px 0;
  padding: 16px 24px;
  border-left: 4px solid var(--primary);
  background: rgba(var(--primary-rgb), 0.06);
  border-radius: 0 12px 12px 0;
  color: var(--text-2);
  font-style: italic;
}

.article-body ul,
.article-body ol {
  margin: 16px 0 20px;
  padding-left: 24px;
}

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

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

.article-body img {
  border-radius: var(--r-card);
  margin: 24px 0;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border);
}

.article-body pre {
  background: #0D1526;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  overflow-x: auto;
  font-family: var(--font-num);
  font-size: 14px;
  line-height: 1.7;
  margin: 24px 0;
}

.article-body code {
  background: rgba(var(--primary-rgb), 0.08);
  border-radius: 6px;
  padding: 2px 6px;
  font-family: var(--font-num);
  font-size: 14px;
  color: var(--primary);
}

.article-body pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.article-body hr {
  border: none;
  border-top: 1px dashed rgba(255, 255, 255, 0.16);
  margin: 40px 0;
}

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

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

.article-body th {
  background: rgba(var(--primary-rgb), 0.06);
  font-weight: 600;
}

.article-empty {
  text-align: center;
  padding: 76px 20px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), var(--shadow-card);
}

.article-empty h2 {
  font-size: 28px;
  color: var(--text);
  margin-bottom: 10px;
}

.article-empty p {
  color: var(--text-2);
  margin-bottom: 28px;
}

/* 标签区 */
.article-tags-section {
  padding: 36px 0 0;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 24px 0 0;
  border-top: 1px dashed rgba(255, 255, 255, 0.14);
  margin-top: 48px;
}

.article-tags-label {
  font-size: 13px;
  color: var(--text-3);
  margin-right: 4px;
  line-height: 32px;
}

.tag {
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(var(--primary-rgb), 0.28);
  background: rgba(var(--primary-rgb), 0.08);
  color: var(--primary);
  text-decoration: none;
  transition: all 0.15s;
}

.tag:hover {
  background: rgba(var(--primary-rgb), 0.18);
  border-color: var(--primary);
}

/* 上一篇 / 下一篇 */
.post-nav-section {
  padding: 24px 0;
}

.post-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.post-nav-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--text-2);
  text-decoration: none;
}

.post-nav-link.post-nav-next {
  text-align: right;
  align-items: flex-end;
}

.post-nav-link .dir {
  font-size: 12px;
  color: var(--text-3);
  font-family: var(--font-num);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.post-nav-link:hover .title {
  color: var(--primary);
}

.post-nav-link.disabled {
  opacity: 0.6;
  pointer-events: none;
  cursor: default;
}

.post-nav-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-2);
  font-size: 15px;
  text-decoration: none;
  font-weight: 500;
}

.post-nav-back svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

.post-nav-back:hover {
  color: var(--primary);
}

/* 相关阅读 */
.related-section {
  padding: 72px 0 16px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 36px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-title::before {
  content: '';
  width: 6px;
  height: 28px;
  background: var(--primary);
  border-radius: 3px;
  box-shadow: 0 0 14px rgba(var(--primary-rgb), 0.6);
}

.section-more {
  color: var(--text-2);
  font-size: 14px;
  text-decoration: none;
}

.section-more:hover {
  color: var(--primary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.related-card {
  display: flex;
  gap: 18px;
  padding: 16px;
  border-radius: var(--r-card);
  background: var(--glass);
  border: 1px solid var(--border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), var(--shadow-card);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.related-card:hover {
  border-color: rgba(var(--primary-rgb), 0.40);
  transform: translateY(-3px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.10), 0 16px 44px rgba(2, 8, 23, 0.55);
}

.related-card-cover {
  width: 150px;
  height: 112px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
}

.related-card-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(11, 18, 32, 0.5) 100%);
  pointer-events: none;
}

.related-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.related-card-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  justify-content: center;
  min-width: 0;
}

.related-card-cat {
  font-size: 12px;
  color: var(--primary);
  font-weight: 500;
  border: 1px solid rgba(var(--primary-rgb), 0.30);
  border-radius: var(--r-pill);
  padding: 2px 10px;
  align-self: flex-start;
}

.related-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0;
  color: var(--text);
  line-height: 1.4;
}

.related-card-body p {
  font-size: 14px;
  color: var(--text-2);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card-body time {
  font-size: 13px;
  color: var(--text-3);
  font-family: var(--font-num);
}

/* CTA 区块 */
.cta-section {
  padding: 72px 0 96px;
}

.cta-inner {
  position: relative;
  border-radius: 24px;
  padding: 76px 48px;
  overflow: hidden;
  text-align: center;
  background: linear-gradient(180deg, #0F1A2E 0%, #0B1220 100%);
  border: 1px solid var(--border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), var(--shadow-card);
}

.cta-inner::before {
  content: '';
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(var(--primary-rgb), 0.16);
  border-radius: 16px;
  pointer-events: none;
}

.cta-inner::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 0%, rgba(var(--primary-rgb), 0.15), transparent 60%),
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: auto, 60px 60px, 60px 60px;
  pointer-events: none;
}

.cta-inner .overlabel {
  position: relative;
  z-index: 1;
  display: inline-block;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--primary);
  border: 1px solid rgba(var(--primary-rgb), 0.35);
  padding: 5px 14px;
  border-radius: var(--r-pill);
  background: rgba(var(--primary-rgb), 0.08);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.cta-inner h2 {
  position: relative;
  z-index: 1;
  font-size: 34px;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 12px;
}

.cta-sub {
  position: relative;
  z-index: 1;
  font-size: 16px;
  color: var(--text-2);
  max-width: 560px;
  margin: 0 auto 32px;
}

.cta-actions {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* 页脚 */
.site-footer {
  background: var(--bg-3);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
  color: var(--text-2);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand .logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-2);
  max-width: 320px;
  margin: 12px 0 0;
  line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 14px;
  color: var(--text);
  margin: 0 0 14px;
  font-weight: 600;
}

.footer-links a {
  display: block;
  color: var(--text-2);
  font-size: 14px;
  padding: 4px 0;
  text-decoration: none;
}

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

.footer-contact p {
  font-size: 14px;
  margin: 4px 0;
  color: var(--text-2);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-3);
}

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

  .nav-toggle {
    display: flex;
  }

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

@media (max-width: 900px) {
  .nav-center {
    display: none;
  }

  .search-toggle-mobile {
    display: inline-flex;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }

  .article-hero {
    padding: 104px 0 40px;
  }

  .article-hero-mark {
    display: none;
  }

  .article-title {
    font-size: 28px;
  }

  .article-kicker {
    font-size: 11px;
  }

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

  .article-content-wrap {
    padding: 32px 0 0;
  }

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

  .article-body h2 {
    font-size: 22px;
  }

  .article-body h3 {
    font-size: 19px;
  }

  .article-tags-section {
    padding: 24px 0 0;
  }

  .post-nav {
    grid-template-columns: 1fr;
    gap: 14px;
    text-align: center;
  }

  .post-nav-link.post-nav-next {
    text-align: center;
    align-items: center;
  }

  .post-nav-back {
    justify-content: center;
    order: -1;
  }

  .related-section {
    padding: 56px 0 8px;
  }

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

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

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

  .related-card-cover {
    width: 100%;
    height: 170px;
  }

  .cta-section {
    padding: 56px 0 72px;
  }

  .cta-inner {
    padding: 52px 24px;
  }

  .cta-inner h2 {
    font-size: 25px;
  }

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

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

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

  .search-kbd {
    display: none;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .related-card {
    flex-direction: column;
  }

  .related-card-cover {
    width: 100%;
    height: 160px;
  }
}