/* roulang page: index */
:root {
  --primary: #2B6CB0;
  --primary-hover: #1F4E7A;
  --primary-light: #EAF2FB;
  --accent: #F59E0B;
  --accent-hover: #D97706;
  --bg: #F7FAFC;
  --card: #FFFFFF;
  --text: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --text-white: #FFFFFF;
  --border: #E2E8F0;
  --border-primary: #3182CE;
  --shadow-card: 0 2px 8px rgba(15, 23, 42, 0.05), 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 12px 32px rgba(30, 64, 175, 0.12);
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-panel: 12px;
  --container-max: 1200px;
  --container-padding: 24px;
  --section-pad: 80px;
  --section-pad-mobile: 48px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .25s ease; }
button { border: none; background: none; cursor: pointer; font: inherit; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
ul, ol { list-style: none; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--container-padding); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: all .25s ease;
  user-select: none;
}
.btn:focus-visible {
  outline: 3px solid rgba(43, 108, 176, 0.4);
  outline-offset: 2px;
}
.btn-primary { background: var(--primary); color: var(--text-white); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(43, 108, 176, 0.25); }
.btn-primary:active { transform: translateY(0); }
.btn-accent { background: var(--accent); color: var(--text-white); }
.btn-accent:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3); }
.btn-accent:active { transform: translateY(0); }
.btn-outline {
  background: rgba(255, 255, 255, 0.85);
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: var(--text-white); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }

.section { padding: var(--section-pad) 0; }
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.7;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 1px 8px rgba(15, 23, 42, 0.04);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  position: relative;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(43, 108, 176, 0.3);
}
.logo-mark::after {
  content: '9';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
}
.logo-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}
.logo-text span { color: var(--primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 4px;
  position: relative;
  transition: color .25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .3s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { transform: scaleX(1); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-btn);
  transition: background .2s ease;
}
.menu-toggle:hover { background: var(--primary-light); }
.menu-toggle span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform .3s ease, opacity .3s ease;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  z-index: -2;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(247,250,252,0.92) 0%, rgba(247,250,252,0.65) 45%, rgba(247,250,252,0.15) 100%);
  z-index: -1;
}
.hero-content {
  max-width: 720px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 24px;
}
.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 560px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.hero-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.8);
  border: 1px solid rgba(226, 232, 240, 0.9);
  padding: 6px 16px;
  border-radius: 20px;
}
.pill::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.pill.pill-blue::before { background: var(--primary); }
.pill.pill-green::before { background: #10B981; }

/* ---------- Agenda timeline ---------- */
.section-agenda { background: var(--card); }
.timeline {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding-left: 48px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--primary-light);
}
.timeline-item {
  position: relative;
  padding: 28px 0;
}
.timeline-dot {
  position: absolute;
  left: -48px;
  top: 32px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--card);
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
}
.timeline-item.highlight .timeline-dot {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 4px rgba(245,158,11,0.2);
}
.timeline-content {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px 28px;
  transition: box-shadow .3s ease, transform .3s ease;
}
.timeline-content:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.timeline-time {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 2px 10px;
  border-radius: 12px;
  margin-bottom: 8px;
}
.timeline-item.highlight .timeline-time {
  background: rgba(245,158,11,0.15);
  color: var(--accent-hover);
}
.timeline-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 6px;
}
.timeline-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
}
.timeline-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
  background: var(--card);
  padding: 2px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.agenda-more {
  text-align: center;
  margin-top: 40px;
}
.agenda-more a {
  color: var(--primary);
  font-weight: 500;
  font-size: 15px;
  border-bottom: 1px solid rgba(43,108,176,0.3);
  padding-bottom: 2px;
  transition: border-color .3s ease;
}
.agenda-more a:hover { border-color: var(--primary); }

/* ---------- Guests ---------- */
.guests-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 28px;
  align-items: stretch;
  margin-top: 16px;
}
.guest-card {
  background: var(--card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease;
}
.guest-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.guest-card:active { transform: translateY(0); }
.guest-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--primary-light);
}
.guest-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.guest-card:hover .guest-cover img { transform: scale(1.02); }
.guest-info {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.guest-info h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}
.guest-card-lg .guest-info h3 { font-size: 24px; }
.guest-role {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 6px;
}
.guest-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: auto;
}

/* ---------- Tickets ---------- */
.section-tickets { background: var(--bg); }
.tickets-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 16px;
  align-items: stretch;
}
.ticket-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.ticket-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.ticket-card:active { transform: translateY(-2px); }
.ticket-card.featured {
  border: 2px solid var(--border-primary);
  box-shadow: 0 8px 32px rgba(43, 108, 176, 0.12);
  transform: scale(1.02);
}
.ticket-card.featured:hover { transform: scale(1.02) translateY(-6px); }
.ticket-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 22px;
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
  letter-spacing: 1px;
}
.ticket-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  text-align: center;
}
.ticket-price {
  text-align: center;
  margin-bottom: 24px;
}
.ticket-price .currency {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  vertical-align: top;
  margin-right: 2px;
}
.ticket-price .amount {
  font-size: 44px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}
.ticket-price .unit {
  font-size: 14px;
  color: var(--text-muted);
  margin-left: 4px;
}
.ticket-features {
  list-style: none;
  margin-bottom: 28px;
  border-top: 1px solid var(--border);
}
.ticket-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 0;
  font-size: 15px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  line-height: 1.5;
}
.ticket-features li::before {
  content: '✓';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}
.ticket-card.featured .ticket-features li::before {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-hover);
}
.ticket-btn {
  margin-top: auto;
}

/* ---------- Register / Form ---------- */
.section-register {
  background: var(--primary-light);
  position: relative;
  overflow: hidden;
}
.section-register::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(43, 108, 176, 0.06);
  pointer-events: none;
}
.section-register::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.06);
  pointer-events: none;
}
.register-wrap {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
}
.register-card {
  background: var(--card);
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow-card);
  padding: 36px 40px;
  border: 1px solid rgba(226, 232, 240, 0.8);
}
.form-group { margin-bottom: 22px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  height: 46px;
  padding: 0 16px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 15px;
  outline: none;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.form-textarea {
  height: auto;
  padding: 12px 16px;
  resize: vertical;
  min-height: 80px;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-status {
  font-size: 14px;
  margin-top: 14px;
  padding: 10px 14px;
  border-radius: var(--radius-btn);
  display: none;
}
.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  color: #0F766E;
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  color: #B91C1C;
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.submit-btn.is-loading {
  opacity: 0.7;
  pointer-events: none;
  position: relative;
}
.submit-btn.is-loading::after {
  content: '';
  position: absolute;
  right: 16px;
  top: 50%;
  width: 16px;
  height: 16px;
  margin-top: -8px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.form-agreement {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 14px;
  text-align: center;
}

/* ---------- News section ---------- */
.section-news { background: var(--card); }
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 16px;
}
.news-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.news-card:active { transform: translateY(0); }
.news-card-link { display: block; }
.news-card-cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--primary-light);
}
.news-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.news-card:hover .news-card-cover img { transform: scale(1.02); }
.news-card-body { padding: 20px 24px 24px; }
.news-card-category {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 12px;
  border-radius: 12px;
  margin-bottom: 10px;
}
.news-card-body h3 {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-time {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.news-card-time::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}
.empty-state {
  grid-column: 1 / -1;
  background: var(--primary-light);
  border: 1px dashed var(--border-primary);
  border-radius: var(--radius-card);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 15px;
}
.empty-state-icon {
  font-size: 40px;
  margin-bottom: 12px;
  display: block;
  color: var(--primary);
}

/* ---------- FAQ ---------- */
.section-faq { background: var(--bg); }
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-panel);
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.faq-item[open] {
  border-color: var(--border-primary);
  box-shadow: var(--shadow-card);
}
.faq-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  user-select: none;
}
.faq-summary::-webkit-details-marker { display: none; }
.faq-summary::after {
  content: '+';
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 20px;
  font-weight: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .3s ease, background .3s ease;
}
.faq-item[open] .faq-summary::after {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-answer {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- CTA Baner ---------- */
.section-cta {
  background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 60%, #3B82C4 100%);
  color: var(--text-white);
  text-align: center;
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}
.section-cta::before {
  content: '';
  position: absolute;
  top: -60px;
  left: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}
.section-cta::after {
  content: '';
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.2);
}
.cta-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}
.cta-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}
.cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.btn-white {
  background: var(--text-white);
  color: var(--primary);
  font-weight: 600;
}
.btn-white:hover { background: var(--primary-light); transform: translateY(-2px); }

/* ---------- Footer ---------- */
.site-footer {
  background: #F0F5FA;
  border-top: 1px solid var(--border);
  padding: 56px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo-text { font-size: 20px; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: 14px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 4px 0;
  transition: color .25s ease, padding-left .25s ease;
}
.footer-col a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-col p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom-links a:hover { color: var(--primary); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .nav-links { gap: 20px; }
  .guests-grid { grid-template-columns: 1fr 1fr; }
  .guest-card-lg { grid-column: 1 / -1; }
  .tickets-grid { grid-template-columns: 1fr; max-width: 480px; margin-left: auto; margin-right: auto; }
  .ticket-card.featured { transform: none; order: -1; }
  .ticket-card.featured:hover { transform: translateY(-4px); }
  .section { padding: 56px 0; }
}
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    font-size: 20px;
    z-index: 999;
    display: none;
    transition: opacity .3s ease;
  }
  .nav-links.open { display: flex; }
  .nav-link { font-size: 20px; }
  .nav-actions .btn { display: none; }
  .menu-toggle { display: flex; }
  .hero { padding: 120px 0 60px; }
  .hero h1 { font-size: 30px; }
  .hero-subtitle { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn { width: 100%; }
  .section-title { font-size: 24px; }
  .section-desc { font-size: 15px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .section { padding: var(--section-pad-mobile) 0; }
  .timeline { padding-left: 36px; }
  .timeline-dot { left: -36px; width: 26px; height: 26px; font-size: 12px; }
  .timeline-content { padding: 18px 20px; }
  .register-card { padding: 24px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero h1 { font-size: 26px; }
  .hero-tags { flex-direction: column; align-items: flex-start; }
  .cta-title { font-size: 24px; }
  .guests-grid { grid-template-columns: 1fr; }
  .tickets-grid { max-width: 100%; }
  .register-card { padding: 20px 16px; }
}

/* roulang page: article */
:root {
            --primary: #2B6CB0;
            --primary-dark: #1F4E7A;
            --primary-light: #EAF2FB;
            --accent: #F59E0B;
            --accent-hover: #D97706;
            --bg: #F7FAFC;
            --card-bg: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #64748B;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --card-radius: 14px;
            --btn-radius: 8px;
            --panel-radius: 12px;
            --shadow: 0 2px 8px rgba(15, 23, 42, 0.05), 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 32px rgba(30, 64, 175, 0.12);
            --container-width: 1200px;
            --header-height: 80px;
            --section-pad: 80px;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-height) + 20px);
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        ul,
        ol {
            padding-left: 1.4em;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--btn-radius);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(43, 108, 176, 0.4);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

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

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-accent:active {
            transform: translateY(0);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.6);
            backdrop-filter: blur(12px) saturate(180%);
            -webkit-backdrop-filter: blur(12px) saturate(180%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.5);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
        }

        .nav-container {
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

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

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
            box-shadow: 0 4px 10px rgba(43, 108, 176, 0.3);
        }

        .logo-mark::after {
            content: "9";
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            line-height: 1;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.5px;
            line-height: 1;
        }

        .logo-text span {
            color: var(--primary);
            font-weight: 400;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0 auto;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 0 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }

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

        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
            box-shadow: inset 0 0 0 1px rgba(43, 108, 176, 0.12);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 0 22px;
            border-radius: 999px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .nav-cta:active {
            transform: translateY(0);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--text);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-toggle i {
            font-size: 22px;
        }

        /* ===== Article Hero ===== */
        .article-hero {
            padding: calc(var(--header-height) + 64px) 0 56px;
            background: linear-gradient(135deg, rgba(247, 250, 252, 0.92), rgba(234, 242, 251, 0.78)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

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

        .breadcrumb a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        .breadcrumb .current {
            color: var(--text-secondary);
            max-width: 320px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-hero h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            max-width: 860px;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-secondary);
            font-size: 14px;
        }

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

        .article-meta i {
            color: var(--primary);
            font-size: 14px;
        }

        .article-meta .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }

        /* ===== Article Body ===== */
        .article-section {
            padding: 56px 0 24px;
        }

        .article-main {
            max-width: 760px;
            margin: 0 auto;
            background: var(--card-bg);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow);
            padding: 48px;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin: 40px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin: 32px 0 12px;
        }

        .article-content p {
            margin-bottom: 20px;
        }

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

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

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 20px;
            border-radius: 0 10px 10px 0;
            margin: 24px 0;
            color: var(--text-secondary);
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0 24px;
            line-height: 1.9;
        }

        .article-content ul li,
        .article-content ol li {
            margin-bottom: 8px;
        }

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

        .article-content hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 32px 0;
        }

        .article-content code {
            background: #1E293B;
            color: #E2E8F0;
            padding: 3px 10px;
            border-radius: 6px;
            font-size: 14px;
        }

        .article-content pre {
            background: #1E293B;
            color: #E2E8F0;
            padding: 20px;
            border-radius: 10px;
            overflow-x: auto;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.7;
        }

        .article-content pre code {
            background: none;
            padding: 0;
        }

        .not-found {
            text-align: center;
            padding: 60px 20px;
        }

        .not-found p {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
        }

        .not-found a {
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== Tags ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 28px 0 8px;
            margin-top: 28px;
            border-top: 1px solid var(--border);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
        }

        .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Prev / Next ===== */
        .article-prev-next {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0 0;
            margin-top: 16px;
        }

        .article-prev-next a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 16px;
            border-radius: var(--btn-radius);
            background: var(--bg);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .article-prev-next a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: var(--section-pad) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
        }

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

        .info-card {
            background: var(--card-bg);
            border-radius: var(--card-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            border: 1px solid rgba(226, 232, 240, 0.6);
        }

        .info-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .info-card:active {
            transform: translateY(0);
        }

        .info-card a {
            color: inherit;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .info-cover {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--primary-light);
        }

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

        .info-card:hover .info-cover img {
            transform: scale(1.02);
        }

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

        .info-category {
            display: inline-flex;
            align-items: center;
            align-self: flex-start;
            padding: 4px 12px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .info-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.45;
            margin-bottom: 10px;
            transition: color 0.2s ease;
        }

        .info-card a:hover .info-title {
            color: var(--primary);
        }

        .info-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .info-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .info-meta i {
            font-size: 12px;
        }

        /* ===== Article CTA ===== */
        .article-cta {
            padding: 0 0 var(--section-pad);
        }

        .cta-box {
            background: var(--primary-light);
            border-radius: 18px;
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            border: 1px solid rgba(43, 108, 176, 0.1);
            flex-wrap: wrap;
        }

        .cta-box h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .cta-box p {
            color: var(--text-secondary);
            font-size: 15px;
        }

        .cta-box .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #F0F5FA;
            border-top: 1px solid var(--border);
            padding: 64px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-brand .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 9px;
        }

        .footer-brand .logo-mark::after {
            font-size: 18px;
        }

        .footer-brand .logo-text {
            font-size: 20px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }

        .footer-col a,
        .footer-col p {
            display: block;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 8px;
            transition: color 0.2s ease;
        }

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

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

        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }

        .footer-bottom-links a {
            color: var(--text-muted);
            font-size: 13px;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 4px;
            }

            .nav-link {
                padding: 0 14px;
                font-size: 14px;
            }

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

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

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
                --section-pad: 48px;
            }

            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.92);
                backdrop-filter: blur(16px) saturate(180%);
                -webkit-backdrop-filter: blur(16px) saturate(180%);
                flex-direction: column;
                align-items: center;
                gap: 8px;
                padding: 24px 16px;
                box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
                transform: translateY(-120%);
                transition: transform 0.35s ease;
                margin: 0;
                border-bottom: 1px solid var(--border);
            }

            .nav-links.open {
                transform: translateY(0);
            }

            .nav-link {
                width: 100%;
                max-width: 320px;
                justify-content: center;
                min-height: 48px;
                font-size: 18px;
                border-radius: 12px;
            }

            .nav-cta {
                display: none;
            }

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

            .article-hero {
                padding: calc(var(--header-height) + 40px) 0 40px;
            }

            .article-hero h1 {
                font-size: 28px;
                line-height: 1.4;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }

            .article-main {
                padding: 32px 24px;
            }

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

            .cta-box {
                padding: 32px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

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

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

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

            .logo-text {
                font-size: 19px;
            }

            .article-hero h1 {
                font-size: 24px;
            }

            .article-main {
                padding: 24px 18px;
                border-radius: 12px;
            }

            .article-content {
                font-size: 15px;
                line-height: 1.85;
            }

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

            .article-content h3 {
                font-size: 18px;
            }

            .article-prev-next {
                flex-direction: column;
            }

            .article-prev-next a {
                justify-content: center;
            }

            .cta-box h2 {
                font-size: 22px;
            }

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

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

/* roulang page: category1 */
:root {
            --primary: #2B6CB0;
            --primary-hover: #1F4E7A;
            --primary-light: #EAF2FB;
            --accent: #F59E0B;
            --accent-hover: #D97706;
            --bg: #F7FAFC;
            --card-bg: #FFFFFF;
            --text-primary: #1E293B;
            --text-secondary: #64748B;
            --text-muted: #94A3B8;
            --text-white: #FFFFFF;
            --border: #E2E8F0;
            --border-strong: #3182CE;
            --shadow-card: 0 2px 8px rgba(15, 23, 42, 0.05), 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 32px rgba(30, 64, 175, 0.12);
            --radius-card: 14px;
            --radius-panel: 12px;
            --radius-btn: 8px;
            --container: 1200px;
            --header-h: 72px;
            --transition: all .3s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-h) + 16px);
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.6);
            backdrop-filter: blur(12px) saturate(180%);
            -webkit-backdrop-filter: blur(12px) saturate(180%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.5);
            box-shadow: 0 2px 16px rgba(15, 23, 42, 0.04);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: .5px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--border-strong));
            display: inline-block;
            position: relative;
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.25);
            flex-shrink: 0;
        }
        .logo-mark::after {
            content: "";
            position: absolute;
            inset: 7px;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.9);
        }
        .logo-text {
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            padding: 8px 4px;
            position: relative;
            line-height: 1.4;
            min-height: 44px;
            display: inline-flex;
            align-items: center;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            width: 100%;
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 40px;
            padding: 0 20px;
            border-radius: 999px;
            background: var(--primary);
            color: var(--text-white);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
        }
        .header-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(43, 108, 176, 0.25);
        }
        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background: transparent;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            border: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.7);
        }
        .menu-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: calc(var(--header-h) + 40px) 0 48px;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(234, 242, 251, 0.94) 0%, rgba(247, 250, 252, 0.7) 55%, rgba(247, 250, 252, 0.25) 100%);
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--primary-hover);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
        }
        .page-banner h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: .5px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .page-banner .banner-sub {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.7;
        }
        .banner-actions {
            display: flex;
            gap: 14px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
            line-height: 1.2;
        }
        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(43, 108, 176, 0.4);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--text-white);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: var(--text-white);
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(43, 108, 176, 0.22);
        }
        .btn-outline:active {
            transform: translateY(0);
        }

        /* ===== Category Layout ===== */
        .category-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 40px;
            padding: 56px 0 72px;
        }
        .main-col {
            display: flex;
            flex-direction: column;
            gap: 40px;
            min-width: 0;
        }
        .side-col {
            display: flex;
            flex-direction: column;
            gap: 28px;
            min-width: 0;
        }

        /* Section Card */
        .panel-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px;
            border: 1px solid rgba(226, 232, 240, 0.5);
            transition: var(--transition);
        }
        .panel-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .panel-card .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
            letter-spacing: .3px;
        }
        .panel-card h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 14px;
            color: var(--text-primary);
        }
        .panel-card .lead {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .panel-card p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 14px;
        }
        .panel-card p:last-child {
            margin-bottom: 0;
        }
        .intro-points {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 24px;
        }
        .intro-point {
            background: var(--bg);
            border-radius: var(--radius-panel);
            padding: 20px;
            text-align: center;
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition);
        }
        .intro-point:hover {
            border-color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-3px);
        }
        .intro-point .icon-dot {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }
        .intro-point h3 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .intro-point p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* Activity Type Cards */
        .activity-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 8px;
        }
        .activity-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid rgba(226, 232, 240, 0.5);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .activity-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .activity-card:active {
            transform: translateY(0);
        }
        .activity-card .cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--primary-light);
        }
        .activity-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .activity-card:hover .cover img {
            transform: scale(1.02);
        }
        .activity-card .body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .activity-card .tag {
            align-self: flex-start;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
        }
        .activity-card h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .activity-card p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex: 1;
        }
        .activity-card .link-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            min-height: 32px;
        }
        .activity-card .link-more:hover {
            color: var(--primary-hover);
            gap: 8px;
        }

        /* Review list */
        .review-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 8px;
        }
        .review-item {
            display: flex;
            gap: 20px;
            background: var(--bg);
            border-radius: var(--radius-panel);
            padding: 16px;
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition);
        }
        .review-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
            background: var(--card-bg);
        }
        .review-item .thumb {
            width: 160px;
            height: 100px;
            flex-shrink: 0;
            border-radius: 10px;
            overflow: hidden;
            background: var(--primary-light);
        }
        .review-item .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .review-item .info {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .review-item .meta-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 4px;
            letter-spacing: .3px;
        }
        .review-item h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .review-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* Process */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 24px;
        }
        .process-step {
            position: relative;
            background: var(--bg);
            border-radius: var(--radius-panel);
            padding: 24px 16px;
            text-align: center;
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition);
        }
        .process-step:hover {
            border-color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-3px);
        }
        .process-step .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 12px;
            box-shadow: 0 4px 10px rgba(43, 108, 176, 0.25);
        }
        .process-step h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 13px;
            line-height: 1.6;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== Sidebar ===== */
        .side-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.5);
            padding: 26px;
            transition: var(--transition);
        }
        .side-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .side-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-card h3::before {
            content: "";
            width: 4px;
            height: 18px;
            border-radius: 2px;
            background: var(--accent);
            flex-shrink: 0;
        }
        .side-form .form-group {
            margin-bottom: 14px;
        }
        .side-form label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .side-form input,
        .side-form select {
            width: 100%;
            height: 44px;
            padding: 0 14px;
            border: 1px solid var(--border);
            border-radius: 8px;
            background: var(--card-bg);
            color: var(--text-primary);
            font-size: 14px;
            transition: var(--transition);
        }
        .side-form input:focus,
        .side-form select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.12);
        }
        .side-form input::placeholder {
            color: var(--text-muted);
        }
        .side-form .btn {
            width: 100%;
            margin-top: 6px;
        }
        .form-status {
            display: none;
            font-size: 13px;
            line-height: 1.6;
            padding: 10px 14px;
            border-radius: 8px;
            margin-top: 12px;
        }
        .form-status.loading {
            display: block;
            background: var(--primary-light);
            color: var(--primary);
        }
        .form-status.success {
            display: block;
            background: #F0FFF4;
            color: #2F855A;
            border: 1px solid #C6F6D5;
        }
        .form-status.error {
            display: block;
            background: #FFF5F5;
            color: #C53030;
            border: 1px solid #FED7D7;
        }
        .quick-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .quick-list li {
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
        }
        .quick-list li:last-child {
            border-bottom: none;
        }
        .quick-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 0;
            font-size: 14px;
            color: var(--text-secondary);
            min-height: 20px;
        }
        .quick-list a::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
            opacity: .7;
        }
        .quick-list a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .side-contact p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            line-height: 1.7;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-contact p:last-child {
            margin-bottom: 0;
        }
        .side-contact .icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 56px 0 72px;
        }
        .section-head {
            text-align: center;
            margin-bottom: 36px;
        }
        .section-head .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
        }
        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-top: 8px;
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-panel);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item[open] {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            list-style: none;
            min-height: 60px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
            color: var(--primary);
            font-size: 16px;
            font-weight: 600;
        }
        .faq-item[open] summary .icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-item .answer {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-light);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(43, 108, 176, 0.06);
        }
        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .cta-inner h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .cta-inner p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #F0F5FA;
            border-top: 1px solid rgba(226, 232, 240, 0.7);
            padding: 60px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-top: 12px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 5px 0;
            line-height: 1.7;
        }
        .footer-col a:hover {
            color: var(--primary);
        }
        .footer-col p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(226, 232, 240, 0.8);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }
        .footer-bottom-links a {
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .side-col {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .side-card:first-child {
                grid-column: 1 / -1;
            }
            .intro-points {
                grid-template-columns: repeat(3, 1fr);
            }
            .activity-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
            }
            .nav-links {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background: rgba(255, 255, 255, 0.94);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 24px;
                opacity: 0;
                visibility: hidden;
                transform: translateY(-12px);
                transition: opacity .3s ease, visibility .3s ease, transform .3s ease;
                z-index: -1;
            }
            .nav-links.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
            }
            .nav-link {
                font-size: 20px;
                gap: 8px;
            }
            .header-cta {
                display: none;
            }
            .menu-toggle {
                display: inline-flex;
                position: relative;
                z-index: 101;
            }
            .header-cta-mobile {
                display: inline-flex;
                margin-top: 8px;
            }
            .page-banner {
                min-height: 260px;
                padding: calc(var(--header-h) + 28px) 0 36px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner .banner-sub {
                font-size: 16px;
            }
            .banner-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .banner-actions .btn {
                width: 100%;
                min-height: 48px;
            }
            .category-layout {
                padding: 32px 0 48px;
            }
            .panel-card {
                padding: 24px;
            }
            .panel-card h2 {
                font-size: 24px;
            }
            .intro-points {
                grid-template-columns: 1fr;
            }
            .activity-grid {
                grid-template-columns: 1fr;
            }
            .review-item {
                flex-direction: column;
            }
            .review-item .thumb {
                width: 100%;
                height: auto;
                aspect-ratio: 16 / 9;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .side-col {
                grid-template-columns: 1fr;
            }
            .faq-section {
                padding: 40px 0 48px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .faq-item summary {
                padding: 16px 18px;
                font-size: 15px;
                min-height: 56px;
            }
            .faq-item .answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                flex-wrap: wrap;
                justify-content: center;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        @media (max-width: 480px) {
            .page-banner {
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner .banner-sub {
                font-size: 15px;
            }
            .panel-card h2 {
                font-size: 22px;
            }
            .process-grid {
                gap: 14px;
            }
            .activity-grid {
                gap: 16px;
            }
        }

        /* fade in */
        .fade-up {
            opacity: 0;
            transform: translateY(16px);
            animation: fadeUp .5s ease forwards;
        }
        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

/* roulang page: category2 */
:root {
  --primary: #2B6CB0;
  --primary-dark: #1F4E7A;
  --primary-light: #3182CE;
  --secondary: #EAF2FB;
  --bg: #F7FAFC;
  --card-bg: #FFFFFF;
  --text: #1E293B;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --border: #E2E8F0;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-panel: 12px;
  --shadow-card: 0 2px 8px rgba(15,23,42,0.05), 0 8px 24px rgba(15,23,42,0.06);
  --shadow-hover: 0 12px 32px rgba(30,64,175,0.12);
  --container: 1200px;
  --space: 80px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--primary-dark); }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(43,108,176,0.4);
  outline-offset: 2px;
}
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }

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

/* ========== 导航 ========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,0.5);
  box-shadow: 0 4px 20px rgba(15,23,42,0.04);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled {
  background: rgba(255,255,255,0.96);
  box-shadow: 0 8px 30px rgba(15,23,42,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  position: relative;
  display: inline-block;
  box-shadow: 0 4px 12px rgba(43,108,176,0.3);
}
.logo-mark::after {
  content: "";
  position: absolute;
  top: 9px; left: 9px;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: var(--accent);
}
.logo-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}
.logo-text span {
  color: var(--primary);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 18px;
  border-radius: 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: background .25s ease, color .25s ease, box-shadow .25s ease;
}
.nav-link:hover {
  background: var(--secondary);
  color: var(--primary);
}
.nav-link.active {
  background: var(--secondary);
  color: var(--primary);
  font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(43,108,176,0.12);
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  border-radius: 8px;
  position: relative;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 5px auto;
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}

/* ========== 页面横幅 Hero ========== */
.page-hero {
  position: relative;
  padding: 170px 0 64px;
  min-height: 320px;
  background:
    linear-gradient(105deg, rgba(247,250,252,0.94) 0%, rgba(247,250,252,0.7) 55%, rgba(43,108,176,0.12) 100%),
    url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  display: flex;
  align-items: center;
}
.page-hero .container {
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 20px;
  background: rgba(255,255,255,0.8);
  border: 1px solid rgba(43,108,176,0.15);
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 18px;
  box-shadow: 0 2px 8px rgba(15,23,42,0.04);
}
.page-hero h1 {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--text);
  max-width: 680px;
  letter-spacing: 0.5px;
}
.page-hero .hero-sub {
  margin-top: 16px;
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  border: 2px solid transparent;
  transition: all .25s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(245,158,11,0.3);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(245,158,11,0.35);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline {
  background: #fff;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0);
}
.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.hero-pills span {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 20px;
  background: rgba(255,255,255,0.75);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  box-shadow: 0 2px 6px rgba(15,23,42,0.04);
}

/* ========== 主体布局：左文右栏 ========== */
.section-padding { padding: var(--space) 0; }
.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 48px;
  align-items: start;
}
.content-main {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.content-sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: sticky;
  top: 100px;
}

/* ========== 基础卡片 ========== */
.card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(226,232,240,0.6);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.card-body {
  padding: 24px;
}

/* ========== 栏目介绍 ========== */
.intro-card .section-label {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: 16px;
  background: var(--secondary);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 14px;
}
.intro-card h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 16px;
}
.intro-card p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 14px;
  line-height: 1.8;
}
.intro-card p:last-child { margin-bottom: 0; }

/* ========== 内容覆盖方向 ========== */
.grid-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}
.grid-title h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
}
.grid-title .link-more {
  font-size: 14px;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
.cover-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.cover-card .cover-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--secondary);
  border-bottom: 1px solid var(--border);
  transition: transform .4s ease;
}
.cover-card:hover .cover-img {
  transform: scale(1.02);
}
.cover-card .card-body {
  padding: 18px 20px 20px;
}
.cover-card .card-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.cover-card .card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ========== 使用流程 ========== */
.steps-block h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 24px;
  line-height: 1.4;
}
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: step;
}
.step-item {
  position: relative;
  padding: 0 0 28px 64px;
  counter-increment: step;
}
.step-item::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--secondary);
  color: var(--primary);
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--primary);
  z-index: 1;
}
.step-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 20px;
  top: 44px;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.step-item:last-child {
  padding-bottom: 0;
}
.step-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.step-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== 右侧边栏卡片 ========== */
.side-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(226,232,240,0.6);
  padding: 24px;
}
.side-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-card h3::before {
  content: "";
  width: 4px;
  height: 20px;
  border-radius: 2px;
  background: var(--primary);
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat-item {
  background: var(--secondary);
  border-radius: var(--radius-panel);
  padding: 18px 14px;
  text-align: center;
}
.stat-item .num {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.stat-item .label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.4;
}
.scene-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.scene-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  background: var(--bg);
  border-radius: var(--radius-panel);
  border: 1px solid var(--border);
}
.scene-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  flex-shrink: 0;
}
.scene-item h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 2px;
}
.scene-item p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}
.side-cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border: none;
  color: #fff;
}
.side-cta h3 {
  color: #fff;
}
.side-cta h3::before {
  background: var(--accent);
}
.side-cta p {
  color: rgba(255,255,255,0.9);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 18px;
}
.side-cta .btn {
  width: 100%;
  margin-bottom: 10px;
}
.side-cta .btn-white {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.side-cta .btn-white:hover {
  background: var(--secondary);
  color: var(--primary);
  transform: translateY(-2px);
}
.side-cta .btn-ghost-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.side-cta .btn-ghost-white:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
}

/* ========== FAQ ========== */
.faq-section {
  background: var(--secondary);
  padding: var(--space) 0;
}
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-wrap h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: 8px;
}
.faq-sub {
  text-align: center;
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 36px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-panel);
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.faq-item[open] {
  border-color: var(--primary);
  box-shadow: var(--shadow-hover);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--primary);
  transition: transform .3s ease;
  flex-shrink: 0;
  line-height: 1;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-content {
  padding: 0 24px 22px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.faq-content p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
}

/* ========== CTA ========== */
.cta-banner {
  padding: 90px 0;
  background:
    linear-gradient(120deg, rgba(43,108,176,0.88) 0%, rgba(30,78,122,0.92) 100%),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  text-align: center;
}
.cta-banner h2 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.cta-banner p {
  color: rgba(255,255,255,0.85);
  font-size: 17px;
  max-width: 620px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.cta-banner .btn-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}
.cta-banner .btn-primary {
  background: var(--accent);
  border-color: var(--accent);
}
.cta-banner .btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.7);
}
.cta-banner .btn-outline:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #F0F5FA;
  padding: 64px 0 0;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 16px;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  padding: 4px 0;
  transition: color .25s ease;
}
.footer-col a:hover {
  color: var(--primary);
}
.footer-col p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  padding: 2px 0;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom-links a:hover {
  color: var(--primary);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .content-layout {
    grid-template-columns: 1fr 320px;
    gap: 32px;
  }
  .page-hero h1 {
    font-size: 38px;
  }
}
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 20px;
    transform: translateY(-100%);
    opacity: 0;
    transition: transform .4s ease, opacity .4s ease;
    z-index: 105;
  }
  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
  }
  .nav-link {
    font-size: 18px;
    padding: 12px 28px;
  }
  .nav-toggle {
    display: block;
  }
  .nav-toggle.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle.is-active span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .page-hero {
    padding: 140px 0 48px;
    min-height: 280px;
  }
  .page-hero h1 {
    font-size: 30px;
  }
  .page-hero .hero-sub {
    font-size: 16px;
  }
  .content-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .content-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .side-cta {
    grid-column: 1 / -1;
  }
  .cover-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .cover-card .cover-img {
    height: 130px;
  }
  .section-padding {
    padding: 48px 0;
  }
  .faq-section {
    padding: 48px 0;
  }
  .cta-banner {
    padding: 60px 0;
  }
  .cta-banner h2 {
    font-size: 26px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 520px) {
  .hero-actions .btn {
    width: 100%;
  }
  .cover-grid {
    grid-template-columns: 1fr;
  }
  .cover-card .cover-img {
    height: 170px;
  }
  .content-sidebar {
    grid-template-columns: 1fr;
  }
  .side-cta {
    grid-column: auto;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-brand {
    grid-column: auto;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .footer-bottom-links {
    justify-content: center;
  }
  .faq-item summary {
    padding: 16px 18px;
    font-size: 15px;
  }
  .faq-content {
    padding: 14px 18px 18px;
  }
  .page-hero h1 {
    font-size: 28px;
  }
}