/* roulang page: index */
:root {
  --primary: #0F2A22;
  --primary-dark: #0B1D18;
  --accent: #B98A44;
  --accent-light: #C89B5E;
  --bg: #F7F5F0;
  --card-bg: #FFFFFF;
  --text: #2B2B2B;
  --text-secondary: #6B6B6B;
  --text-muted: #9B9B9B;
  --border: #E5E1D8;
  --success: #C88A3D;
  --warning: #A65E3A;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow: 0 4px 20px rgba(11,29,24,0.06);
  --shadow-hover: 0 8px 30px rgba(11,29,24,0.12);
  --container: 1200px;
  --spacing-lg: 96px;
  --spacing-md: 64px;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Inter", "Helvetica Neue", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: inline-block; vertical-align: middle; }
a { text-decoration: none; color: inherit; transition: color .25s ease; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.row { margin: 0 auto; max-width: var(--container); }
.section { padding: var(--spacing-lg) 0; }
.section-tight { padding: calc(var(--spacing-lg) / 2) 0; }
.text-center { text-align: center; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  height: 72px;
  background: rgba(247,245,240,0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s ease, border-color .3s ease, background .3s ease;
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 12px rgba(11,29,24,0.05);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { display: block; }
.logo-text {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--primary);
  white-space: nowrap;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0 auto;
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 2px;
  white-space: nowrap;
  transition: color .25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width .25s ease;
}
.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-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header-search {
  position: relative;
  display: flex;
  align-items: center;
}
.header-search .search-icon {
  position: absolute;
  left: 10px;
  color: var(--text-muted);
  pointer-events: none;
}
.header-search input {
  width: 180px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.6);
  padding: 0 12px 0 32px;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: width .3s ease, border-color .25s ease, box-shadow .25s ease;
}
.header-search input:focus {
  width: 240px;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(185,138,68,0.15);
}
.btn-login {
  height: 36px;
  padding: 0 18px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .25s ease, color .25s ease;
}
.btn-login:hover { background: rgba(15,42,34,0.1); }
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 16px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
}
.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(185,138,68,0.3);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(185,138,68,0.2);
}
.btn-cta {
  height: 36px;
  padding: 0 20px;
  font-size: 14px;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--primary);
  font-size: 16px;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary);
  cursor: pointer;
  transition: background .25s ease, transform .25s ease;
}
.btn-secondary:hover { background: rgba(15,42,34,0.08); transform: translateY(-2px); }
.btn-secondary:active { transform: translateY(0); background: rgba(15,42,34,0.12); }
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  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); }
.mobile-menu {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(11,29,24,0.08);
  padding: 20px 24px 28px;
  z-index: 119;
}
.mobile-menu.open { display: block; }
.mobile-menu .mobile-nav-link {
  display: block;
  font-size: 17px;
  font-weight: 500;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.mobile-menu .mobile-nav-link:last-child { border-bottom: none; }
.mobile-menu .mobile-nav-link.active { color: var(--accent); font-weight: 700; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11,29,24,0.92) 0%, rgba(11,29,24,0.65) 42%, rgba(11,29,24,0.25) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  padding: 80px 0;
  animation: fadeInDown .6s ease-out both;
}
.hero-badge {
  display: inline-block;
  background: rgba(185,138,68,0.18);
  border: 1px solid rgba(185,138,68,0.4);
  color: #D9B382;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.hero h1 {
  font-size: 40px;
  line-height: 1.2;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.hero h1 .accent-text { color: #D9B382; }
.hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-actions .btn-primary { background: var(--accent); color: var(--primary-dark); }
.hero-actions .btn-secondary { border-color: #FFFFFF; color: #FFFFFF; }
.hero-actions .btn-secondary:hover { background: rgba(255,255,255,0.1); }
.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 40px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.2);
  max-width: 640px;
}
.hero-stat { display: flex; flex-direction: column; }
.hero-stat .stat-num {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.2;
}
.hero-stat .stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-top: 4px;
}
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 24px;
  height: 36px;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
  opacity: 0.8;
}
.scroll-indicator::after {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #FFFFFF;
  animation: scrollBounce 1.8s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(10px); opacity: 0.4; }
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Section headers ===== */
.section-header { margin-bottom: 48px; }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.section-title {
  font-size: 28px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

/* ===== Benefits Ladder ===== */
.benefits-section { padding-bottom: calc(var(--spacing-lg) / 2); }
.benefits-grid {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.benefit-card {
  flex: 1;
  min-width: 280px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 28px 28px;
  position: relative;
  transition: transform .3s ease, box-shadow .3s ease;
}
.benefit-card:nth-child(2) { margin-top: 24px; }
.benefit-card:nth-child(3) { margin-top: 48px; }
.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.benefit-card .benefit-img {
  width: 100%;
  height: 160px;
  border-radius: 8px;
  object-fit: cover;
  margin-bottom: 20px;
}
.benefit-card .benefit-rank {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: rgba(185,138,68,0.1);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.benefit-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.benefit-card .benefit-condition {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}
.benefit-card .benefit-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 6px 0;
  line-height: 1.5;
}
.benefit-card .benefit-list li i {
  color: var(--accent);
  font-size: 13px;
  margin-top: 3px;
}
.benefit-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  transition: color .25s ease, transform .25s ease;
}
.benefit-link:hover { color: var(--primary); transform: translateX(3px); }
.benefit-hot-tag {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  box-shadow: 0 3px 10px rgba(185,138,68,0.3);
}

/* ===== Plan Compare ===== */
.plan-section {
  background: #F0EDE6;
}
.plan-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 40px;
}
.plan-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px 32px;
  position: relative;
  transition: transform .3s ease, box-shadow .3s ease;
}
.plan-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.plan-card.recommended {
  border: 1px solid var(--accent);
  box-shadow: 0 4px 24px rgba(185,138,68,0.14);
}
.plan-card.recommended:hover { box-shadow: 0 8px 32px rgba(185,138,68,0.2); }
.plan-recommend-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  white-space: nowrap;
}
.plan-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.plan-audience {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 18px;
}
.plan-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--text-secondary);
  padding: 8px 0;
  line-height: 1.5;
}
.plan-feature-list li i {
  color: var(--accent);
  font-size: 14px;
  margin-top: 4px;
  flex-shrink: 0;
}
.plan-meta {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.plan-meta .meta-item { display: flex; flex-direction: column; }
.plan-meta .meta-label { font-size: 12px; color: var(--text-muted); }
.plan-meta .meta-value { font-size: 15px; font-weight: 600; color: var(--primary); }
.plan-price {
  font-family: var(--font-en);
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
}

/* ===== Limited Entry ===== */
.limited-section {
  background: var(--primary-dark);
  color: #FFFFFF;
  padding: var(--spacing-lg) 0;
  position: relative;
  overflow: hidden;
}
.limited-section::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(185,138,68,0.12) 0%, transparent 70%);
}
.limited-inner {
  position: relative;
  z-index: 2;
  text-align: center;
}
.limited-tag {
  display: inline-block;
  background: rgba(185,138,68,0.2);
  border: 1px solid rgba(185,138,68,0.45);
  color: #D9B382;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}
.limited-title {
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 12px;
}
.limited-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  max-width: 520px;
  margin: 0 auto 40px;
  line-height: 1.7;
}
.countdown {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 36px;
}
.countdown-block {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 16px 24px;
  min-width: 84px;
  text-align: center;
}
.countdown-num {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.countdown-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
  letter-spacing: 0.05em;
}
.limited-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 16px;
  font-weight: 700;
  padding: 14px 36px;
  border-radius: var(--radius-sm);
  transition: background .25s ease, box-shadow .25s ease, transform .25s ease;
}
.limited-cta:hover {
  background: var(--accent-light);
  box-shadow: 0 0 20px rgba(185,138,68,0.4);
  transform: translateY(-2px);
}
.quota-block {
  max-width: 440px;
  margin: 38px auto 0;
  text-align: left;
}
.quota-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 10px;
}
.quota-header strong {
  color: #D9B382;
  font-family: var(--font-en);
  font-size: 18px;
}
.quota-bar {
  height: 8px;
  background: rgba(255,255,255,0.14);
  border-radius: 4px;
  overflow: hidden;
}
.quota-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), #D9B382);
  width: 68%;
  transition: width 0.6s ease;
}

/* ===== Contact ===== */
.contact-section { background: var(--bg); }
.contact-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
  align-items: start;
}
.contact-left .section-title { margin-bottom: 18px; }
.contact-left p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.contact-phone {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 12px;
}
.contact-phone-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(185,138,68,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 18px;
}
.contact-phone .phone-label { font-size: 13px; color: var(--text-muted); }
.contact-phone .phone-num {
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}
.contact-form-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px 32px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 15px;
  color: var(--text);
  outline: none;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(185,138,68,0.15);
}
.form-group textarea { resize: vertical; min-height: 96px; line-height: 1.6; }
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M6 8L0 0h12L6 8z' fill='%239B9B9B'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}
.form-submit {
  width: 100%;
  height: 48px;
  background: var(--accent);
  color: var(--primary-dark);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
}
.form-submit:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(185,138,68,0.3);
}
.form-submit:active { transform: translateY(0); }
.form-tip {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
  line-height: 1.5;
}

/* ===== News / CMS ===== */
.news-section { background: var(--bg); }
.news-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.news-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.news-card .news-card-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  transition: transform .3s ease;
}
.news-card:hover .news-card-img { transform: scale(1.03); }
.news-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-badge {
  display: inline-block;
  align-self: flex-start;
  background: rgba(185,138,68,0.12);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.news-title {
  font-size: 17px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
  flex: 1;
}
.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.news-meta .news-read {
  color: var(--accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap .25s ease;
}
.news-card:hover .news-read { gap: 8px; }
.cms-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 24px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.cms-empty i {
  font-size: 38px;
  color: var(--border);
  margin-bottom: 14px;
}
.cms-empty p {
  font-size: 15px;
  color: var(--text-muted);
}

/* ===== FAQ ===== */
.faq-section {
  background: #F0EDE6;
}
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}
.faq-item:first-child { padding-top: 0; }
.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  user-select: none;
}
.faq-question .faq-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.faq-question .faq-toggle {
  margin-left: auto;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: transform .3s ease;
  font-size: 14px;
}
.faq-item.open .faq-toggle { transform: rotate(45deg); color: var(--accent); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  padding-left: 22px;
}
.faq-item.open .faq-answer {
  max-height: 200px;
  padding-top: 12px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  color: #FFFFFF;
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .logo-text {
  color: #FFFFFF;
  font-size: 20px;
}
.footer-brand .logo-icon { margin-bottom: 16px; }
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.65);
  margin-top: 18px;
  max-width: 320px;
}
.footer-social {
  display: flex;
  gap: 14px;
  margin-top: 24px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 15px;
  transition: background .25s ease, color .25s ease, transform .25s ease;
}
.footer-social a:hover {
  background: var(--accent);
  color: var(--primary-dark);
  transform: translateY(-3px);
}
.footer-col-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  color: #FFFFFF;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color .25s ease, padding-left .25s ease;
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 14px;
}
.footer-contact li i {
  color: var(--accent);
  margin-top: 4px;
  width: 16px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* ===== Shared blocks / misc ===== */
.text-link {
  color: var(--accent);
  font-weight: 600;
}
.text-link:hover { color: var(--primary); }

/* ===== Reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .5s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .header-nav { gap: 18px; }
  .header-search input { width: 140px; }
  .header-search input:focus { width: 180px; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits-grid { gap: 24px; }
}
@media screen and (max-width: 768px) {
  :root { --spacing-lg: 64px; --spacing-md: 40px; }
  .site-header { height: 60px; }
  .header-nav { display: none; }
  .header-search { display: none; }
  .btn-login { display: none; }
  .menu-toggle { display: flex; }
  .btn-cta { height: 34px; padding: 0 16px; font-size: 13px; }
  .hero { min-height: 70vh; }
  .hero-content { padding: 60px 0; }
  .hero h1 { font-size: 30px; line-height: 1.25; }
  .hero-sub { font-size: 15px; }
  .hero-stats { gap: 24px; margin-top: 40px; padding-top: 24px; }
  .hero-stat .stat-num { font-size: 22px; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .plan-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .benefits-grid { flex-direction: column; }
  .benefit-card:nth-child(2),
  .benefit-card:nth-child(3) { margin-top: 16px; }
  .countdown { gap: 12px; }
  .countdown-block { padding: 12px 16px; min-width: 68px; }
  .countdown-num { font-size: 22px; }
  .section-title { font-size: 24px; }
}
@media screen and (max-width: 480px) {
  .container { padding: 0 16px; }
  .news-grid { grid-template-columns: 1fr; }
  .plan-card { padding: 28px 20px; }
  .contact-form-card { padding: 24px 20px; }
  .hero h1 { font-size: 28px; }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary { width: 100%; }
  .countdown { gap: 8px; }
  .countdown-block { min-width: 58px; padding: 10px 12px; }
  .countdown-num { font-size: 18px; }
  .benefit-card { padding: 24px 20px; }
}

/* roulang page: article */
:root {
  --primary: #0F2A22;
  --primary-dark: #0B1D18;
  --accent: #B98A44;
  --accent-soft: rgba(185, 138, 68, 0.12);
  --bg: #F7F5F0;
  --card: #FFFFFF;
  --text: #2B2B2B;
  --text-muted: #6B6B6B;
  --text-light: #9B9B9B;
  --border: #E5E1D8;
  --radius-lg: 12px;
  --radius-sm: 6px;
  --shadow-sm: 0 4px 20px rgba(11, 29, 24, 0.06);
  --shadow-md: 0 8px 30px rgba(11, 29, 24, 0.12);
  --shadow-lg: 0 20px 48px rgba(11, 29, 24, 0.16);
  --container: 1200px;
  --space: 96px;
  --space-mobile: 64px;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Inter", "Helvetica Neue", sans-serif;
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }

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

::selection { background: rgba(185, 138, 68, 0.25); }

/* ============ Header / Nav ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(247, 245, 240, 0.94);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(11, 29, 24, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}

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

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

.logo-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--primary-dark);
  white-space: nowrap;
}

.header-nav-wrap {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  position: relative;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: color 0.25s ease, background 0.25s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width 0.3s ease;
}

.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { width: 60%; }
.nav-link.active { color: var(--primary-dark); font-weight: 600; }
.nav-link.active::after { width: 60%; }

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

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box i {
  position: absolute;
  left: 12px;
  font-size: 13px;
  color: var(--text-light);
  pointer-events: none;
  transition: color 0.25s;
}

.search-box input {
  width: 180px;
  height: 38px;
  padding: 0 12px 0 34px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: #EFECE5;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: width 0.35s cubic-bezier(0.25, 0.8, 0.25, 1), border-color 0.25s, box-shadow 0.25s, background 0.25s;
}

.search-box input::placeholder { color: var(--text-light); }
.search-box input:focus {
  width: 240px;
  background: var(--card);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(185, 138, 68, 0.18);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s, border-color 0.25s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(185, 138, 68, 0.35);
  filter: brightness(1.05);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(185, 138, 68, 0.25);
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1px solid rgba(15, 42, 34, 0.4);
  height: 38px;
  padding: 0 18px;
  font-size: 14px;
}

.btn-ghost:hover { background: rgba(15, 42, 34, 0.08); border-color: var(--primary); }
.btn-ghost:active { background: rgba(15, 42, 34, 0.14); }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  transition: background 0.25s, border-color 0.25s;
}

.nav-toggle:hover { background: var(--accent-soft); border-color: var(--accent); }

/* ============ Article Page ============ */
.article-page-main {
  padding: 48px 0 var(--space);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 32px;
}

.breadcrumb a {
  transition: color 0.25s;
}

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

.breadcrumb .separator {
  color: var(--border);
  font-size: 12px;
}

.breadcrumb .current {
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 240px;
}

.article-shell {
  max-width: 760px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 36px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
  font-size: 14px;
  color: var(--text-muted);
}

.article-category {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  border-radius: 20px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  transition: background 0.25s, color 0.25s;
}

.article-category:hover {
  background: var(--accent);
  color: var(--primary-dark);
}

.article-meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-light);
}

.article-meta time { color: var(--text-muted); }

.article-title {
  font-family: var(--font-en), var(--font-cn);
  font-size: 36px;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--primary-dark);
  margin: 0 0 20px;
}

.article-abstract {
  position: relative;
  background: #F0EDE6;
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.article-content {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.article-content p {
  margin: 0 0 24px;
}

.article-content h2 {
  font-family: var(--font-en), var(--font-cn);
  font-size: 26px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 48px 0 18px;
  letter-spacing: -0.01em;
}

.article-content h3 {
  font-family: var(--font-en), var(--font-cn);
  font-size: 20px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--primary);
  margin: 36px 0 14px;
}

.article-content img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin: 28px 0;
}

.article-content blockquote {
  margin: 28px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--accent);
  background: #F0EDE6;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-muted);
  font-size: 15px;
}

.article-content ul,
.article-content ol {
  margin: 0 0 24px;
  padding-left: 22px;
}

.article-content ul li {
  position: relative;
  padding-left: 4px;
  margin-bottom: 10px;
  list-style: disc;
}

.article-content ol li {
  list-style: decimal;
  margin-bottom: 10px;
}

.article-content a {
  color: var(--accent);
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s;
}

.article-content a:hover { border-bottom-color: var(--accent); }

.article-content strong { color: var(--primary-dark); font-weight: 700; }

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 15px;
}

.article-content table th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
}

.article-content table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.article-content table tr:hover td { background: rgba(185, 138, 68, 0.05); }

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.article-tag {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-muted);
  background: var(--card);
  transition: border-color 0.25s, color 0.25s, background 0.25s;
}

.article-tag::before {
  content: "#";
  color: var(--accent);
  font-weight: 700;
  margin-right: 4px;
}

.article-tag:hover {
  border-color: var(--accent);
  color: var(--primary);
  background: var(--accent-soft);
}

.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 36px;
}

.post-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.post-nav-link i {
  font-size: 14px;
  color: var(--accent);
  transition: transform 0.25s;
}

.post-nav-link:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(185, 138, 68, 0.4);
}

.post-nav-link:hover i.fa-arrow-left { transform: translateX(-3px); }
.post-nav-link:hover i.fa-arrow-right { transform: translateX(3px); }

.post-nav-next { justify-content: flex-end; }

/* ============ Related Section ============ */
.related-section {
  padding: 72px 0;
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-en), var(--font-cn);
  font-size: 32px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: -0.01em;
  margin: 0;
}

.section-sub {
  font-size: 15px;
  color: var(--text-muted);
  margin-top: 8px;
  max-width: 560px;
}

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

.related-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.related-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(185, 138, 68, 0.35);
}

.related-card-img {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

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

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

.related-card-body {
  padding: 22px 22px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.related-card-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--primary-dark);
  margin-bottom: 10px;
  transition: color 0.25s;
}

.related-card:hover .related-card-title { color: var(--accent); }

.related-card-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card-link {
  margin-top: auto;
  padding-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.25s;
}

.related-card-link i { font-size: 12px; }

.related-card:hover .related-card-link { gap: 10px; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 40px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  transition: color 0.25s, gap 0.25s;
}

.back-link i { color: var(--accent); transition: transform 0.25s; }

.back-link:hover { color: var(--accent); }
.back-link:hover i { transform: translateX(-4px); }

/* ============ CTA Band ============ */
.cta-band {
  position: relative;
  padding: 72px 0;
  background: var(--primary-dark);
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(185, 138, 68, 0.14), transparent 55%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-title {
  font-family: var(--font-en), var(--font-cn);
  font-size: 30px;
  line-height: 1.35;
  font-weight: 700;
  color: #fff;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

.cta-desc {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(247, 245, 240, 0.7);
  margin: 0 0 32px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-light {
  background: var(--accent);
  color: var(--primary-dark);
  height: 46px;
  padding: 0 30px;
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(185, 138, 68, 0.45), 0 8px 24px rgba(0, 0, 0, 0.25);
}

.btn-outline-light {
  background: transparent;
  color: rgba(247, 245, 240, 0.9);
  border: 1px solid rgba(247, 245, 240, 0.35);
  height: 46px;
  padding: 0 30px;
}

.btn-outline-light:hover {
  background: rgba(247, 245, 240, 0.1);
  border-color: rgba(247, 245, 240, 0.6);
  transform: translateY(-2px);
}

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

/* ============ Not Found ============ */
.not-found {
  max-width: 520px;
  margin: 120px auto;
  text-align: center;
  padding: 48px 32px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.not-found-icon {
  font-size: 40px;
  color: var(--accent);
  margin-bottom: 18px;
}

.not-found-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.not-found-text {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--primary-dark);
  color: rgba(247, 245, 240, 0.72);
  padding-top: 64px;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 44px;
}

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

.footer-desc {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(247, 245, 240, 0.6);
  max-width: 320px;
  margin: 18px 0 22px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(247, 245, 240, 0.18);
  border-radius: var(--radius-sm);
  color: rgba(247, 245, 240, 0.75);
  font-size: 16px;
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.25s;
}

.footer-social a:hover {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
  transform: translateY(-3px);
}

.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin: 0 0 20px;
  letter-spacing: 0.02em;
}

.footer-links li { margin-bottom: 12px; }

.footer-links a {
  font-size: 14px;
  color: rgba(247, 245, 240, 0.65);
  transition: color 0.25s, padding-left 0.25s;
}

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

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(247, 245, 240, 0.65);
  margin-bottom: 14px;
}

.footer-contact i {
  width: 18px;
  text-align: center;
  color: var(--accent);
  font-size: 14px;
}

.footer-bottom {
  border-top: 1px solid rgba(247, 245, 240, 0.1);
  padding: 22px 0;
  font-size: 13px;
  color: rgba(247, 245, 240, 0.45);
  text-align: center;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .search-box input { width: 150px; }
  .search-box input:focus { width: 200px; }
  .header-nav-wrap { gap: 16px; }
  .header-actions .btn-ghost { display: none; }
}

@media (max-width: 768px) {
  .header-inner { height: 60px; }

  .nav-toggle {
    display: inline-flex;
    order: 3;
  }

  .header-nav-wrap {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    box-shadow: 0 24px 40px rgba(11, 29, 24, 0.08);
    z-index: 99;
  }

  .site-header.mobile-open .header-nav-wrap {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .header-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-link {
    padding: 14px 16px;
    font-size: 16px;
  }

  .nav-link::after { display: none; }
  .nav-link.active { background: var(--accent-soft); }

  .header-actions .search-box { display: none; }
  .header-actions .btn { height: 38px; padding: 0 16px; font-size: 14px; }

  .article-title { font-size: 28px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .post-nav { grid-template-columns: 1fr; }
  .section-title { font-size: 28px; }
}

@media (max-width: 640px) {
  :root { --space: 64px; }
  .article-page-main { padding: 36px 0 0; }
  .related-section { padding: 56px 0; }
  .cta-band { padding: 56px 0; }
  .article-content { font-size: 15px; }
  .article-abstract { padding: 16px 18px; }
  .cta-actions .btn { width: 100%; }
}

@media (max-width: 480px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .article-title { font-size: 24px; }
  .breadcrumb { font-size: 12px; }
  .article-meta { font-size: 13px; }
  .related-card-body { padding: 18px; }
  .post-nav-link { padding: 15px 16px; }
  .footer-social a { width: 36px; height: 36px; }
  .btn { height: 48px; font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category1 */
:root {
      --primary: #0F2A22;
      --primary-dark: #0B1D18;
      --accent: #B98A44;
      --accent-light: #C88A3D;
      --bg: #F7F5F0;
      --card-bg: #FFFFFF;
      --text: #2B2B2B;
      --text-muted: #6B6B6B;
      --text-faint: #9B9B9B;
      --border: #E5E1D8;
      --warn: #A65E3A;
      --radius: 12px;
      --radius-btn: 6px;
      --shadow: 0 4px 20px rgba(11, 29, 24, 0.06);
      --shadow-hover: 0 8px 30px rgba(11, 29, 24, 0.12);
      --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-en: "Inter", "Helvetica Neue", sans-serif;
      --container: 1200px;
      --gutter: 24px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-cn);
      font-size: 16px;
      line-height: 1.6;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
      margin: 0;
      font-family: var(--font-cn);
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.01em;
    }

    p {
      margin: 0 0 16px;
    }

    a {
      color: var(--accent);
      text-decoration: none;
      transition: color .25s;
    }

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

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

    ul,
    ol {
      margin: 0;
      padding: 0;
      list-style: none;
    }

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

    .container,
    .grid-container {
      max-width: var(--container);
      margin: 0 auto;
      padding-left: var(--gutter);
      padding-right: var(--gutter);
    }

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

    /* 按钮 */
    .btn-primary,
    .btn-secondary-light,
    .btn-cta,
    .btn-login {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      border-radius: var(--radius-btn);
      font-size: 16px;
      font-weight: 700;
      line-height: 1;
      cursor: pointer;
      border: 1px solid transparent;
      transition: background .25s, transform .25s, box-shadow .25s, border-color .25s, color .25s;
    }

    .btn-primary {
      background: var(--accent);
      color: var(--primary-dark);
      border-color: var(--accent);
    }

    .btn-primary:hover {
      background: #c69a54;
      color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(185, 138, 68, 0.35);
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 4px 12px rgba(185, 138, 68, 0.25);
    }

    .btn-secondary-light {
      border-color: rgba(255, 255, 255, 0.8);
      color: #fff;
      background: transparent;
    }

    .btn-secondary-light:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
      transform: translateY(-2px);
    }

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

    .btn-cta {
      background: var(--accent);
      color: var(--primary-dark);
      padding: 10px 20px;
      font-size: 15px;
      border-color: var(--accent);
    }

    .btn-cta:hover {
      background: #c69a54;
      color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(185, 138, 68, 0.3);
    }

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

    .btn-login {
      background: transparent;
      border-color: var(--primary);
      color: var(--primary);
      padding: 9px 18px;
      font-size: 14px;
      font-weight: 600;
    }

    .btn-login:hover {
      background: rgba(15, 42, 34, 0.08);
      color: var(--primary);
    }

    /* 导航 */
    .site-header {
      position: sticky;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      height: 72px;
      background: rgba(247, 245, 240, 0.92);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      border-bottom: 1px solid transparent;
      transition: background .3s, border-color .3s, box-shadow .3s;
    }

    .site-header.scrolled {
      background: rgba(247, 245, 240, 0.96);
      border-bottom-color: var(--border);
      box-shadow: 0 1px 12px rgba(11, 29, 24, 0.05);
    }

    .header-inner {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 16px;
    }

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

    .logo-icon {
      display: block;
      flex-shrink: 0;
    }

    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      white-space: nowrap;
    }

    .header-nav {
      display: flex;
      align-items: center;
      gap: 28px;
      margin: 0;
    }

    .header-nav .nav-link {
      position: relative;
      display: inline-block;
      padding: 8px 2px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      transition: color .25s;
    }

    .header-nav .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 0;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
      transition: width .25s;
    }

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

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

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

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

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .search-box {
      display: flex;
      align-items: center;
      gap: 8px;
      width: 180px;
      height: 38px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-btn);
      padding: 0 12px;
      transition: width .3s, border-color .3s, box-shadow .3s;
    }

    .search-box:focus-within {
      width: 240px;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(185, 138, 68, 0.18);
    }

    .search-box i {
      color: var(--text-faint);
      font-size: 14px;
    }

    .search-box input {
      width: 100%;
      border: none;
      outline: none;
      background: transparent;
      font-size: 14px;
      color: var(--text);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--primary);
      font-size: 22px;
      cursor: pointer;
      padding: 8px;
      line-height: 1;
    }

    /* Hero */
    .category-hero {
      position: relative;
      display: flex;
      align-items: center;
      min-height: 72vh;
      padding: 80px 0;
      background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
    }

    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(11, 29, 24, 0.88) 0%, rgba(11, 29, 24, 0.55) 60%, rgba(11, 29, 24, 0.25) 100%);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      width: 100%;
      animation: fadeInDown .6s ease both;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(185, 138, 68, 0.18);
      border: 1px solid rgba(185, 138, 68, 0.55);
      color: #e5c591;
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 0.02em;
    }

    .category-hero h1 {
      font-size: 44px;
      line-height: 1.2;
      color: #fff;
      margin: 20px 0 16px;
      max-width: 720px;
    }

    .hero-sub {
      max-width: 600px;
      font-size: 17px;
      line-height: 1.75;
      color: rgba(255, 255, 255, 0.88);
      margin-bottom: 30px;
    }

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

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 32px;
      margin-top: 44px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.22);
    }

    .hero-meta-item span {
      display: block;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.72);
      margin-bottom: 4px;
    }

    .hero-meta-item strong {
      font-family: var(--font-en);
      font-size: 26px;
      font-weight: 700;
      color: #fff;
    }

    .scroll-indicator {
      position: absolute;
      bottom: 28px;
      left: 50%;
      transform: translateX(-50%);
      color: rgba(255, 255, 255, 0.75);
      font-size: 18px;
      animation: scrollBounce 2s infinite;
      z-index: 2;
    }

    @keyframes scrollBounce {
      0%, 100% { transform: translate(-50%, 0); }
      50% { transform: translate(-50%, 10px); }
    }

    @keyframes fadeInDown {
      from { opacity: 0; transform: translateY(12px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* 板块 */
    .section {
      padding: 96px 0;
    }

    .section-head {
      max-width: 680px;
      margin-bottom: 48px;
    }

    .section-head.text-center {
      margin-left: auto;
      margin-right: auto;
    }

    .section-tag {
      display: inline-block;
      font-family: var(--font-en);
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 10px;
    }

    .section-head h2 {
      font-size: 32px;
      line-height: 1.3;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 16px;
      line-height: 1.7;
      color: var(--text-muted);
    }

    /* 分类描述区 */
    .about-section {
      background: #fff;
    }

    .about-media img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }

    .about-text {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-muted);
      margin-top: 20px;
    }

    .about-list {
      margin-top: 24px;
    }

    .about-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 8px 0;
      font-size: 15px;
      color: var(--text);
    }

    .about-list li i {
      color: var(--accent);
      font-size: 16px;
    }

    /* 指标 */
    .metrics-section {
      background: var(--bg);
    }

    .metric-card {
      background: var(--card-bg);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 32px 20px;
      text-align: center;
      height: 100%;
      transition: transform .3s, box-shadow .3s;
    }

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

    .metric-icon {
      width: 52px;
      height: 52px;
      margin: 0 auto 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      background: rgba(185, 138, 68, 0.12);
      color: var(--accent);
      font-size: 22px;
    }

    .metric-number {
      font-family: var(--font-en);
      font-size: 30px;
      font-weight: 700;
      color: var(--primary);
    }

    .metric-label {
      margin-top: 8px;
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 内容栏目卡片 */
    .info-grid-section {
      background: #fff;
    }

    .info-card {
      background: var(--card-bg);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: transform .3s, box-shadow .3s;
    }

    .info-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }

    .card-media {
      aspect-ratio: 16 / 10;
      overflow: hidden;
    }

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

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

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

    .card-badge {
      display: inline-block;
      align-self: flex-start;
      background: rgba(185, 138, 68, 0.14);
      color: #8a6530;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
      letter-spacing: 0.02em;
    }

    .card-title {
      font-size: 20px;
      line-height: 1.4;
      color: var(--primary);
      margin: 14px 0 10px;
    }

    .card-desc {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-muted);
      margin: 0 0 16px;
    }

    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: auto;
      font-size: 14px;
      font-weight: 600;
      color: var(--accent);
      transition: gap .3s, color .3s;
    }

    .card-link:hover {
      color: var(--primary);
      gap: 10px;
    }

    /* 流程 */
    .steps-section {
      background: var(--bg);
    }

    .step-item {
      background: var(--card-bg);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 32px 24px;
      text-align: center;
      height: 100%;
      transition: transform .3s, box-shadow .3s;
    }

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

    .step-num {
      width: 48px;
      height: 48px;
      margin: 0 auto 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: var(--primary);
      color: var(--accent);
      font-family: var(--font-en);
      font-size: 18px;
      font-weight: 700;
    }

    .step-item h3 {
      font-size: 18px;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .step-item p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-muted);
      margin: 0;
    }

    /* 场景 */
    .scenes-section {
      background: #fff;
    }

    .scene-block {
      margin-bottom: 64px;
    }

    .scene-block:last-child {
      margin-bottom: 0;
    }

    .scene-media img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }

    .scene-content h3 {
      font-size: 24px;
      line-height: 1.35;
      color: var(--primary);
      margin: 16px 0 12px;
    }

    .scene-content p {
      font-size: 16px;
      line-height: 1.75;
      color: var(--text-muted);
    }

    .scene-list {
      margin-top: 20px;
    }

    .scene-list li {
      position: relative;
      padding: 6px 0 6px 24px;
      font-size: 15px;
      color: var(--text);
    }

    .scene-list li::before {
      content: "";
      position: absolute;
      left: 4px;
      top: 14px;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
    }

    /* FAQ */
    .faq-section {
      background: var(--bg);
    }

    .faq-list {
      border-bottom: 1px solid var(--border);
    }

    .faq-item {
      border-top: 1px solid var(--border);
      padding: 22px 0;
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 16px;
      font-weight: 600;
      color: var(--primary);
      padding: 0;
      transition: color .25s;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary:hover {
      color: var(--accent);
    }

    .faq-item[open] summary {
      color: var(--accent);
    }

    .faq-dot {
      flex-shrink: 0;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      transition: box-shadow .25s;
    }

    .faq-item[open] .faq-dot {
      box-shadow: 0 0 0 4px rgba(185, 138, 68, 0.2);
    }

    .faq-item p {
      margin: 14px 0 0 22px;
      font-size: 15px;
      line-height: 1.75;
      color: var(--text-muted);
    }

    /* CTA band */
    .cta-band {
      position: relative;
      background: var(--primary-dark);
      padding: 80px 0;
      overflow: hidden;
    }

    .cta-band::after {
      content: "";
      position: absolute;
      width: 520px;
      height: 520px;
      border-radius: 50%;
      background: rgba(185, 138, 68, 0.1);
      top: -220px;
      right: -120px;
    }

    .cta-inner {
      position: relative;
      z-index: 2;
    }

    .cta-tag {
      font-family: var(--font-en);
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--accent);
    }

    .cta-band h2 {
      color: #fff;
      font-size: 32px;
      line-height: 1.3;
      margin: 14px 0 16px;
    }

    .cta-band p {
      color: rgba(255, 255, 255, 0.8);
      font-size: 16px;
      line-height: 1.75;
      max-width: 560px;
      margin-bottom: 0;
    }

    .cta-actions {
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 16px;
    }

    /* 页脚 */
    .site-footer {
      background: var(--primary-dark);
      color: rgba(255, 255, 255, 0.7);
      padding: 64px 0 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 56px;
    }

    .footer-brand .logo-text {
      color: #fff;
    }

    .footer-desc {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.6);
      margin: 16px 0 24px;
      max-width: 360px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.08);
      color: rgba(255, 255, 255, 0.85);
      transition: background .3s, color .3s, transform .3s;
    }

    .footer-social a:hover {
      background: var(--accent);
      color: var(--primary-dark);
      transform: translateY(-2px);
    }

    .footer-col-title {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 18px;
    }

    .footer-links li,
    .footer-contact li {
      margin-bottom: 10px;
      font-size: 14px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, 0.65);
      transition: color .3s;
    }

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

    .footer-contact i {
      width: 18px;
      color: var(--accent);
      margin-right: 6px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      margin-top: 48px;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
    }

    .footer-bottom p {
      margin: 0;
    }

    /* 动效 */
    .fade-up {
      opacity: 0;
      transform: translateY(16px);
      transition: opacity .5s ease, transform .5s ease;
    }

    .fade-up.in-view {
      opacity: 1;
      transform: translateY(0);
    }

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }
      *,
      *::before,
      *::after {
        animation: none !important;
        transition: none !important;
      }
      .fade-up {
        opacity: 1;
        transform: none;
      }
    }

    /* 响应式 */
    @media (max-width: 1024px) {
      .header-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        background: var(--bg);
        padding: 16px 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 24px rgba(11, 29, 24, 0.08);
        transform: translateY(-16px);
        opacity: 0;
        visibility: hidden;
        transition: transform .25s, opacity .25s, visibility .25s;
      }

      .header-nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
      }

      .header-nav .nav-link {
        width: 100%;
        padding: 12px 4px;
        border-bottom: 1px solid var(--border);
      }

      .header-nav .nav-link:last-child {
        border-bottom: none;
      }

      .header-nav .nav-link::after {
        display: none;
      }

      .header-actions .search-box,
      .header-actions .btn-login {
        display: none;
      }

      .menu-toggle {
        display: block;
      }

      .category-hero {
        min-height: 70vh;
        padding: 64px 0;
      }

      .category-hero h1 {
        font-size: 36px;
      }

      .section {
        padding: 64px 0;
      }

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

      .cta-actions {
        align-items: flex-start;
        flex-direction: row;
        flex-wrap: wrap;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        height: 60px;
      }

      .site-header {
        height: 60px;
      }

      .logo-text {
        font-size: 17px;
      }

      .menu-toggle {
        font-size: 20px;
      }

      .category-hero h1 {
        font-size: 30px;
      }

      .hero-sub {
        font-size: 16px;
      }

      .hero-meta {
        gap: 20px;
      }

      .section-head h2 {
        font-size: 26px;
      }

      .cta-band h2 {
        font-size: 26px;
      }

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

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

      .footer-bottom {
        margin-top: 32px;
      }
    }

    @media (max-width: 640px) {
      :root {
        --gutter: 16px;
      }

      .hero-actions .btn-primary,
      .hero-actions .btn-secondary-light,
      .cta-actions .btn-primary {
        width: 100%;
        min-height: 48px;
      }

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

      .hero-meta {
        flex-wrap: wrap;
      }

      .scene-content h3 {
        font-size: 20px;
      }

      .card-body {
        padding: 20px;
      }

      .footer-social a {
        width: 44px;
        height: 44px;
      }
    }

/* roulang page: category2 */
:root {
  --primary: #0F2A22;
  --primary-dark: #0B1D18;
  --accent: #B98A44;
  --accent-light: #C89A5A;
  --bg: #F7F5F0;
  --card: #FFFFFF;
  --text: #2B2B2B;
  --text-secondary: #6B6B6B;
  --text-muted: #9B9B9B;
  --border: #E5E1D8;
  --success: #C88A3D;
  --warn: #A65E3A;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow-sm: 0 4px 20px rgba(11,29,24,0.06);
  --shadow-lg: 0 8px 30px rgba(11,29,24,0.12);
  --container: 1200px;
  --spacing-lg: 96px;
  --spacing-md: 64px;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Inter", "Helvetica Neue", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-cn);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -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(--accent);
}

ul, ol {
  list-style: none;
}

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

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

.section {
  padding: var(--spacing-lg) 0;
}

.section-dark {
  background: var(--primary-dark);
  color: #F7F5F0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head h2,
.section-head h3 {
  font-size: 28px;
  line-height: 36px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 12px 0 12px;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 26px;
}

.section-dark .section-head p {
  color: rgba(247,245,240,0.72);
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(185,138,68,0.12);
  padding: 6px 14px;
  border-radius: 20px;
  letter-spacing: .04em;
}

.section-dark .section-tag {
  background: rgba(185,138,68,0.18);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background: rgba(247,245,240,0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 16px rgba(11,29,24,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

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

.logo-icon {
  width: 26px;
  height: 26px;
}

.logo-text {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--primary);
  white-space: nowrap;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color .25s ease, background .25s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent);
  transform: translateX(-50%);
  transition: width .25s ease;
  border-radius: 2px;
}

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

.nav-link:hover::after {
  width: 60%;
}

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

.nav-link.active::after {
  width: 60%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-search {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-search input {
  width: 180px;
  height: 38px;
  border: 1px solid var(--border);
  background: #F0EDE6;
  border-radius: var(--radius-sm);
  padding: 0 14px 0 36px;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: width .3s ease, border-color .3s ease, background .3s ease;
}

.nav-search input:focus {
  width: 240px;
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(185,138,68,0.15);
}

.nav-search i {
  position: absolute;
  left: 12px;
  font-size: 14px;
  color: var(--text-muted);
  pointer-events: none;
}

.btn-login {
  height: 38px;
  padding: 0 18px;
  border: 1px solid var(--primary);
  background: transparent;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  color: var(--primary);
  transition: background .25s ease, color .25s ease, transform .25s ease;
}

.btn-login:hover {
  background: rgba(15,42,34,0.1);
}

.btn-login:active {
  background: rgba(15,42,34,0.18);
  transform: scale(0.98);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent);
  cursor: pointer;
  line-height: 1.2;
  transition: background .25s ease, transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(185,138,68,0.3);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(185,138,68,0.2);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--primary);
  font-size: 15px;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary);
  cursor: pointer;
  line-height: 1.2;
  transition: background .25s ease, color .25s ease, transform .25s ease;
}

.btn-outline:hover {
  background: rgba(15,42,34,0.06);
  color: var(--primary);
  transform: translateY(-2px);
}

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

.btn-white {
  background: #F7F5F0;
  color: var(--primary-dark);
  border-color: #F7F5F0;
}

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

.btn-large {
  padding: 18px 40px;
  font-size: 16px;
}

.burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius-sm);
  font-size: 18px;
  color: var(--primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: background .25s ease;
}

.burger:hover {
  background: var(--bg);
}

.page-hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  margin-top: 72px;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11,29,24,0.92) 0%, rgba(11,29,24,0.7) 42%, rgba(11,29,24,0.35) 100%);
}

.hero-container {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-content {
  max-width: 640px;
  padding: 80px 0;
}

.hero-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: #E8CFA6;
  background: rgba(185,138,68,0.2);
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 18px;
  letter-spacing: .04em;
}

.page-hero h1 {
  font-size: 40px;
  line-height: 48px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}

.page-hero .hero-sub {
  font-size: 17px;
  line-height: 28px;
  color: rgba(247,245,240,0.85);
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

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

.stat-num {
  font-size: 30px;
  font-weight: 700;
  color: #F7F5F0;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.stat-label {
  font-size: 13px;
  color: rgba(247,245,240,0.68);
  margin-top: 4px;
}

.category-intro {
  background: var(--bg);
}

.intro-copy h2 {
  font-size: 28px;
  line-height: 36px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 12px 0 18px;
  color: var(--primary);
}

.intro-copy p {
  font-size: 16px;
  line-height: 26px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.intro-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}

.intro-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: #fff;
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform .25s ease, box-shadow .25s ease;
}

.intro-feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.intro-feature i {
  color: var(--accent);
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.intro-media {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

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

.intro-media::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  pointer-events: none;
}

.stats-band {
  background: var(--primary);
  padding: 56px 0;
  color: #F7F5F0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-block {
  text-align: center;
  padding: 24px 16px;
  border-right: 1px solid rgba(255,255,255,0.08);
}

.stat-block:last-child {
  border-right: none;
}

.stat-block .num {
  font-size: 38px;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.stat-block .desc {
  font-size: 14px;
  color: rgba(247,245,240,0.75);
  margin-top: 8px;
}

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

.info-row + .info-row {
  margin-top: 88px;
}

.info-media {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.info-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform .4s ease;
}

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

.info-content {
  padding: 16px 0;
}

.info-content h3 {
  font-size: 24px;
  line-height: 32px;
  font-weight: 700;
  color: var(--primary);
  margin: 12px 0 14px;
  letter-spacing: -0.01em;
}

.info-content p {
  font-size: 15px;
  line-height: 26px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
  padding: 10px 14px;
  background: #fff;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: border-color .25s ease;
}

.info-list li:hover {
  border-color: rgba(185,138,68,0.4);
}

.info-list i {
  color: var(--accent);
  font-size: 14px;
  width: 16px;
  text-align: center;
}

.process-section {
  padding: var(--spacing-lg) 0;
  background: var(--primary-dark);
  color: #F7F5F0;
}

.process-section .section-head h2 {
  color: #F7F5F0;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 32px 24px;
  transition: transform .3s ease, background .3s ease, border-color .3s ease;
}

.process-card:hover {
  transform: translateY(-6px);
  background: rgba(255,255,255,0.08);
  border-color: rgba(185,138,68,0.5);
}

.process-num {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent-light);
  letter-spacing: .06em;
  margin-bottom: 12px;
}

.process-card h3 {
  font-size: 18px;
  line-height: 26px;
  color: #F7F5F0;
  margin-bottom: 10px;
  font-weight: 600;
}

.process-card p {
  font-size: 14px;
  line-height: 22px;
  color: rgba(247,245,240,0.7);
}

.faq-section {
  background: var(--bg);
  padding: var(--spacing-lg) 0;
}

.faq-wrapper {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}

.faq-item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  list-style: none;
  transition: color .25s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

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

.faq-item summary::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 14px;
  color: var(--text-muted);
  margin-left: auto;
  transition: transform .3s ease;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 14px 0 0 24px;
  font-size: 14px;
  line-height: 24px;
  color: var(--text-secondary);
}

.cta-banner {
  position: relative;
  background: var(--primary-dark);
  padding: 80px 0;
  overflow: hidden;
  text-align: center;
  color: #F7F5F0;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(185,138,68,0.08) 0%, rgba(11,29,24,0) 60%);
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
}

.cta-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: #E8CFA6;
  background: rgba(185,138,68,0.2);
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 18px;
}

.cta-banner h2 {
  font-size: 32px;
  line-height: 40px;
  font-weight: 700;
  color: #F7F5F0;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}

.cta-banner p {
  font-size: 16px;
  line-height: 26px;
  color: rgba(247,245,240,0.75);
  margin-bottom: 32px;
}

.cta-progress {
  max-width: 420px;
  margin: 28px auto 0;
  text-align: left;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(247,245,240,0.6);
  margin-bottom: 8px;
}

.progress-bar {
  height: 6px;
  background: rgba(255,255,255,0.12);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  width: 72%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 3px;
}

.site-footer {
  background: var(--primary-dark);
  color: rgba(247,245,240,0.7);
  padding: 72px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo {
  margin-bottom: 18px;
}

.footer-brand .logo-text {
  color: #F7F5F0;
}

.footer-desc {
  font-size: 14px;
  line-height: 24px;
  color: rgba(247,245,240,0.6);
  max-width: 320px;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 14px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-sm);
  color: rgba(247,245,240,0.6);
  font-size: 15px;
  transition: border-color .25s ease, color .25s ease, transform .25s ease, background .25s ease;
}

.footer-social a:hover {
  color: var(--accent-light);
  border-color: rgba(185,138,68,0.5);
  transform: translateY(-2px);
  background: rgba(185,138,68,0.08);
}

.footer-col-title {
  font-size: 16px;
  font-weight: 600;
  color: #F7F5F0;
  margin-bottom: 18px;
}

.footer-links,
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: rgba(247,245,240,0.6);
  font-size: 14px;
  transition: color .25s ease, padding-left .25s ease;
}

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

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(247,245,240,0.6);
}

.footer-contact i {
  width: 18px;
  text-align: center;
  color: var(--accent);
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  font-size: 13px;
  color: rgba(247,245,240,0.45);
}

.footer-bottom a {
  color: rgba(247,245,240,0.45);
}

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

@media (min-width: 1024px) {
  .header-nav {
    display: flex;
  }
  .cell .intro-features {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 1023px) {
  .section {
    --spacing-lg: 72px;
    --spacing-md: 48px;
  }

  .header-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    box-shadow: var(--shadow-lg);
  }

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

  .nav-link {
    width: 100%;
    padding: 12px 16px;
  }

  .nav-link::after {
    display: none;
  }

  .burger {
    display: inline-flex;
  }

  .nav-search {
    display: none;
  }

  .btn-login {
    display: none;
  }

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

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

  .stat-block {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }

  .stat-block:nth-child(-n+2) {
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .section {
    --spacing-lg: 64px;
    --spacing-md: 40px;
  }

  .container {
    padding: 0 20px;
  }

  .page-hero h1 {
    font-size: 30px;
    line-height: 36px;
  }

  .hero-content {
    padding: 60px 0;
  }

  .hero-actions {
    flex-direction: column;
   align-items: stretch;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-outline {
    justify-content: center;
  }

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

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

  .stat-num {
    font-size: 30px;
  }

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

  .cta-banner h2 {
    font-size: 26px;
    line-height: 34px;
  }

  .stat-block .num {
    font-size: 30px;
  }

  .intro-features {
    grid-template-columns: 1fr;
  }
}

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

  .page-hero h1 {
    font-size: 28px;
    line-height: 36px;
  }

  .intro-copy h2,
  .section-head h2 {
    font-size: 22px;
    line-height: 30px;
  }

  .hero-stats {
    gap: 16px;
  }

  .stat-num {
    font-size: 24px;
  }

  .info-content h3 {
    font-size: 20px;
  }

  .process-card {
    padding: 24px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-content {
    animation: none !important;
  }
}

/* roulang page: category3 */
:root {
  --primary: #0F2A22;
  --primary-dark: #0B1D18;
  --accent: #B98A44;
  --accent-light: #C88A3D;
  --bg: #F7F5F0;
  --card-bg: #FFFFFF;
  --text: #2B2B2B;
  --text-secondary: #6B6B6B;
  --text-muted: #9B9B9B;
  --border: #E5E1D8;
  --warning: #A65E3A;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow-sm: 0 4px 20px rgba(11,29,24,0.06);
  --shadow-md: 0 8px 30px rgba(11,29,24,0.12);
  --container: 1200px;
  --gap: 24px;
  --section-padding: 96px;
  --header-height: 72px;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Inter", "Helvetica Neue", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease; }
button, input, textarea, select { font-family: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; }
h1 { font-size: 40px; line-height: 48px; }
h2 { font-size: 28px; line-height: 36px; }
h3 { font-size: 20px; line-height: 28px; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .25s ease;
}
.site-header.scrolled { box-shadow: 0 2px 16px rgba(11, 29, 24, 0.08); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 20px;
}
.logo { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.logo-icon { flex-shrink: 0; }
.logo-text { font-size: 18px; font-weight: 700; color: var(--primary); letter-spacing: -0.01em; }
.logo:hover .logo-text { color: var(--accent); }
.header-nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  font-size: 15px;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color .25s, background .25s;
}
.nav-link:hover { color: var(--primary); background: rgba(15, 42, 34, 0.06); }
.nav-link.active { color: var(--primary); font-weight: 600; background: rgba(15, 42, 34, 0.08); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-box {
  display: flex;
  align-items: center;
  background: #EDEAE3;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  width: 180px;
  transition: width .3s ease, background .25s;
}
.search-box:focus-within { width: 240px; background: #fff; box-shadow: 0 0 0 1px var(--accent); }
.search-box i { color: var(--text-muted); font-size: 13px; margin-right: 8px; }
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: var(--text);
  width: 100%;
}
.btn-login {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  border: 1px solid var(--primary);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  transition: background .25s, color .25s;
}
.btn-login:hover { background: rgba(15, 42, 34, 0.08); color: var(--primary); }
.btn-login:active { background: rgba(15, 42, 34, 0.15); }
.btn-header {
  font-size: 14px;
  font-weight: 600;
  background: var(--accent);
  color: var(--primary-dark);
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  transition: transform .25s, box-shadow .25s, background .25s;
}
.btn-header:hover { background: #c99a52; color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(185, 138, 68, 0.3); }
.btn-header:active { transform: translateY(0); }
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--primary);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.menu-toggle:focus { outline: 2px solid var(--accent); }

/* Hero */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 29, 24, 0.88) 0%, rgba(15, 42, 34, 0.72) 45%, rgba(11, 29, 24, 0.2) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
  max-width: 680px;
  padding-top: 48px;
  padding-bottom: 48px;
  animation: fadeInDown .6s ease;
}
.hero-badge {
  display: inline-block;
  background: rgba(185, 138, 68, 0.85);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
}
.hero h1 { color: #fff; font-size: 42px; line-height: 50px; margin-bottom: 16px; }
.hero-subtitle { font-size: 17px; line-height: 28px; color: rgba(255, 255, 255, 0.85); margin-bottom: 28px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 16px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: transform .25s, box-shadow .25s, background .25s;
}
.btn-primary:hover { background: #c99a52; color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(185, 138, 68, 0.35); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(185, 138, 68, 0.25); }
.btn-primary:focus-visible { outline: 3px solid rgba(185, 138, 68, 0.5); outline-offset: 2px; }
.btn-secondary {
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: background .25s, border-color .25s;
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.1); border-color: #fff; color: #fff; }
.btn-secondary:active { background: rgba(255, 255, 255, 0.18); }
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Section */
.section { padding: var(--section-padding) 0; }
.section-head { max-width: 700px; margin-bottom: 48px; }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(185, 138, 68, 0.12);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.section-title { font-size: 32px; line-height: 40px; margin-bottom: 12px; }
.section-sub { color: var(--text-secondary); font-size: 16px; line-height: 26px; }

/* Intro */
.intro-section { background: var(--bg); }
.intro-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.intro-text h2 { margin-bottom: 16px; }
.intro-text p { color: var(--text-secondary); margin-bottom: 16px; }
.link-arrow { font-weight: 600; color: var(--primary); }
.link-arrow:hover { color: var(--accent); }
.link-arrow i { transition: transform .25s; display: inline-block; }
.link-arrow:hover i { transform: translateX(4px); }
.intro-image img { border-radius: var(--radius); box-shadow: var(--shadow-sm); width: 100%; height: 420px; object-fit: cover; }

/* Guide Library */
.guide-section { background: #fff; }
.guide-large-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-bottom: 24px; }
.guide-card-large {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 360px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .3s ease, box-shadow .3s;
}
.guide-card-large.visible { opacity: 1; transform: translateY(0); }
.guide-card-large:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.guide-card-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; transition: transform .3s; }
.guide-card-large:hover .guide-card-bg { transform: scale(1.03); }
.guide-card-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11, 29, 24, 0.2) 0%, rgba(11, 29, 24, 0.92) 100%); z-index: 1; }
.guide-card-content { position: relative; z-index: 2; color: #fff; padding: 28px; width: 100%; }
.card-tag {
  display: inline-block;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.card-tag.small { background: rgba(185, 138, 68, 0.12); color: var(--accent); }
.guide-card-content h3 { color: #fff; font-size: 22px; line-height: 30px; margin-bottom: 8px; }
.guide-card-content p { color: rgba(255, 255, 255, 0.85); font-size: 14px; line-height: 22px; }
.card-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; font-size: 13px; color: rgba(255, 255, 255, 0.6); }
.card-meta a { color: #fff; font-weight: 600; }
.card-meta a i { transition: transform .25s; display: inline-block; }
.card-meta a:hover i { transform: translateX(4px); }
.guide-small-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.guide-card-small {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .3s ease, box-shadow .3s, border-color .3s;
}
.guide-card-small.visible { opacity: 1; transform: translateY(0); }
.guide-card-small:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(185, 138, 68, 0.4); }
.guide-card-small h3 { font-size: 17px; line-height: 24px; margin: 8px 0 6px; }
.guide-card-small p { font-size: 14px; color: var(--text-secondary); }

/* Value Band */
.value-band { background: var(--primary-dark); color: #fff; padding: 80px 0; }
.section-head.light .section-tag { background: rgba(185, 138, 68, 0.15); color: var(--accent); }
.section-head.light h2 { color: #fff; }
.value-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-top: 16px; }
.stat-item {
  text-align: center;
  padding: 24px 16px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .3s ease, background .25s;
}
.stat-item.visible { opacity: 1; transform: translateY(0); }
.stat-item:hover { background: rgba(185, 138, 68, 0.08); }
.stat-num { display: block; font-size: 32px; font-weight: 700; color: var(--accent); margin-bottom: 6px; font-family: var(--font-en); }
.stat-label { font-size: 14px; color: rgba(255, 255, 255, 0.7); }

/* FAQ */
.faq-section { background: var(--bg); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); padding: 20px 0; }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: color .25s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  display: inline-block;
}
.faq-item summary:hover { color: var(--accent); }
.faq-item[open] summary { color: var(--primary); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease;
  padding: 0 0 0 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 24px;
}
.faq-item[open] .faq-a { max-height: 300px; padding: 12px 0 0 20px; }

/* CTA Band */
.cta-band { background: var(--primary-dark); padding: 72px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; color: #fff; }
.cta-inner h2 { font-size: 28px; margin-bottom: 8px; }
.cta-inner p { color: rgba(255, 255, 255, 0.75); max-width: 520px; }
.cta-buttons { display: flex; gap: 16px; flex-shrink: 0; flex-wrap: wrap; }
.btn-primary.light { background: #fff; color: var(--primary-dark); }
.btn-primary.light:hover { background: rgba(255, 255, 255, 0.9); color: var(--primary-dark); }
.btn-secondary.light { border-color: rgba(255, 255, 255, 0.5); color: #fff; }
.btn-secondary.light:hover { background: rgba(255, 255, 255, 0.08); border-color: #fff; color: #fff; }

/* Footer */
.site-footer { background: var(--primary-dark); color: rgba(255, 255, 255, 0.8); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-desc { font-size: 14px; line-height: 22px; color: rgba(255, 255, 255, 0.55); margin-bottom: 20px; max-width: 320px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  transition: background .25s, border-color .25s, color .25s, transform .25s;
}
.footer-social a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--primary-dark);
  transform: translateY(-2px);
}
.footer-col-title { font-size: 16px; color: #fff; margin-bottom: 16px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a, .footer-contact li { font-size: 14px; color: rgba(255, 255, 255, 0.6); }
.footer-links a:hover { color: var(--accent); }
.footer-contact li { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.footer-contact i { color: var(--accent); width: 16px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* Responsive */
@media (max-width: 1024px) {
  .header-nav { gap: 4px; }
  .nav-link { padding: 8px 10px; font-size: 14px; }
  .search-box { width: 140px; }
  .search-box:focus-within { width: 200px; }
  .guide-small-row { grid-template-columns: repeat(2, 1fr); }
  .value-stats { grid-template-columns: repeat(2, 1fr); }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-buttons { width: 100%; }
}
@media (max-width: 768px) {
  :root { --section-padding: 64px; --header-height: 60px; }
  .menu-toggle { display: block; }
  .header-actions .search-box,
  .header-actions .btn-login { display: none; }
  .header-actions .btn-header { font-size: 14px; padding: 8px 16px; }
  .header-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform .3s ease;
    z-index: 99;
    box-shadow: 0 16px 24px rgba(11, 29, 24, 0.08);
  }
  .header-nav.open { transform: translateY(0); }
  .nav-link { padding: 12px 8px; font-size: 15px; }
  .hero { min-height: 70vh; align-items: flex-start; }
  .hero-content { padding-top: 64px; }
  .hero h1 { font-size: 30px; line-height: 38px; }
  .intro-block { grid-template-columns: 1fr; gap: 32px; }
  .intro-image img { height: 260px; }
  .guide-large-row { grid-template-columns: 1fr; }
  .guide-card-large { min-height: 320px; }
  .guide-small-row { grid-template-columns: 1fr; }
  .value-stats { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-buttons { flex-direction: column; }
  .cta-buttons .btn-primary,
  .cta-buttons .btn-secondary { text-align: center; width: 100%; }
}
@media (max-width: 480px) {
  h1 { font-size: 28px; line-height: 36px; }
  h2 { font-size: 24px; line-height: 32px; }
  .container { padding: 0 16px; }
  .value-stats { grid-template-columns: 1fr; }
  .guide-card-content { padding: 20px; }
  .section-head { margin-bottom: 32px; }
  .hero h1 { font-size: 26px; line-height: 34px; }
  .hero-subtitle { font-size: 15px; line-height: 24px; }
  .btn-primary, .btn-secondary { width: 100%; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .nav-link, .btn-primary, .btn-header,
  .guide-card-large, .guide-card-small,
  .stat-item, .link-arrow i, .card-meta a i { transform: none !important; }
  html { scroll-behavior: auto; }
}