/* roulang page: index */
:root {
  --color-bg: #0F0E0C;
  --color-surface: #171613;
  --color-surface-2: #1E1D19;
  --color-primary: #C9A96A;
  --color-primary-hover: #DDBE82;
  --color-primary-deep: #A08040;
  --color-accent: #21A67A;
  --color-text: #ECE7DE;
  --color-text-muted: #9A9285;
  --color-border: rgba(201, 169, 106, 0.18);
  --color-danger: #D96C4F;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(201, 169, 106, 0.25);
  --shadow-cta: 0 4px 16px rgba(201, 169, 106, 0.25);
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Inter", "Arial", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-primary-hover); text-decoration: underline; }
button, input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }
.section-sm { padding: 48px 0; }

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--color-text); font-weight: 700; }
h1 { font-size: 40px; letter-spacing: -0.01em; }
h2 { font-size: 30px; letter-spacing: -0.005em; }
h3 { font-size: 20px; font-weight: 600; }
h4 { font-size: 17px; }
p { color: var(--color-text); margin-bottom: 1em; }
.text-muted { color: var(--color-text-muted); }
.section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 48px;
}
.section-head::before {
  content: "";
  width: 3px;
  height: 26px;
  background: linear-gradient(180deg, var(--color-primary-hover), var(--color-primary-deep));
  border-radius: 2px;
  flex-shrink: 0;
}
.section-head h2 { margin: 0; }
.section-head .head-en {
  font-size: 13px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-family: var(--font-num);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  line-height: 1;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); box-shadow: none; }
.btn:focus-visible { outline: 2px solid var(--color-primary-hover); outline-offset: 3px; }
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary-hover));
  color: #171310;
  box-shadow: var(--shadow-cta);
}
.btn-primary:hover {
  color: #171310;
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(201, 169, 106, 0.35);
  text-decoration: none;
}
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -80%;
  width: 50%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
  pointer-events: none;
}
.btn-primary:hover::after { left: 130%; }
.btn-outline {
  background: transparent;
  border: 1px solid rgba(201, 169, 106, 0.55);
  color: var(--color-primary);
}
.btn-outline:hover {
  background: rgba(201, 169, 106, 0.08);
  border-color: var(--color-primary-hover);
  color: var(--color-primary-hover);
  transform: translateY(-2px);
  text-decoration: none;
}
.btn-link {
  background: transparent;
  border: none;
  color: var(--color-primary);
  padding: 10px 0;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s, gap 0.2s;
}
.btn-link:hover { color: var(--color-primary-hover); gap: 10px; text-decoration: none; }
.btn-lg { padding: 16px 42px; font-size: 17px; }
.btn-sm { padding: 10px 20px; font-size: 14px; }

/* ---- Badges / Tags ---- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  background: rgba(201, 169, 106, 0.12);
  color: var(--color-primary);
}
.badge-green {
  background: rgba(33, 166, 122, 0.15);
  color: #4FD6A8;
}
.badge-gray {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-muted);
}
.tag-pill {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 13px;
  margin: 4px 6px 4px 0;
  transition: all 0.2s;
}
.tag-pill:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  cursor: pointer;
  text-decoration: none;
}

/* ---- Header / Nav ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 14, 12, 0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
  transition: background 0.3s, box-shadow 0.3s;
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.logo .logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary-hover));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  color: #171310;
}
.logo:hover { color: var(--color-primary-hover); text-decoration: none; }
.header-right { display: flex; align-items: center; gap: 12px; }
.search-wrap { position: relative; }
.search-wrap input {
  width: 200px;
  height: 38px;
  background: var(--color-surface-2);
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 38px 0 14px;
  color: var(--color-text);
  font-size: 13px;
  transition: border-color 0.3s, box-shadow 0.3s;
  outline: none;
}
.search-wrap input::placeholder { color: #6E675D; }
.search-wrap input:focus {
  border-color: rgba(201, 169, 106, 0.6);
  box-shadow: 0 0 0 3px rgba(201, 169, 106, 0.15);
}
.search-wrap .search-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 14px;
  pointer-events: none;
}
.lang-btn {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}
.lang-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.header-cta { padding: 10px 22px; font-size: 14px; }

/* 频道导航 */
.channel-nav {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  background: rgba(23, 22, 19, 0.85);
}
.channel-tabs {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 48px;
  overflow-x: auto;
  scrollbar-width: none;
  white-space: nowrap;
}
.channel-tabs::-webkit-scrollbar { display: none; }
.channel-tabs a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 22px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1px solid transparent;
  transition: all 0.25s;
}
.channel-tabs a:hover {
  color: var(--color-primary);
  border-color: var(--color-border);
  text-decoration: none;
}
.channel-tabs a.active {
  background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary-hover));
  color: #171310;
  font-weight: 600;
}
.channel-tabs a .tab-icon { font-size: 14px; }

/* Sticky效果 */
.site-header.is-scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: 88px 0 72px;
  background:
    linear-gradient(180deg, rgba(10, 9, 8, 0.3) 0%, rgba(15, 14, 12, 0.85) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201, 169, 106, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 169, 106, 0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero-content { display: flex; align-items: center; gap: 48px; }
.hero-left { flex: 0 0 58%; }
.hero-right { flex: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(33, 166, 122, 0.12);
  border: 1px solid rgba(33, 166, 122, 0.3);
  color: #4FD6A8;
  border-radius: 24px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 7px;
  height: 7px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(33, 166, 122, 0.5); }
  50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(33, 166, 122, 0); }
}
.hero h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
  animation: fadeUp 0.6s ease both;
}
.hero h1 .gold {
  background: linear-gradient(135deg, var(--color-primary-hover), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 18px;
  color: #C8C1B6;
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 560px;
  animation: fadeUp 0.6s ease 0.15s both;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeUp 0.6s ease 0.3s both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-panel {
  position: relative;
  border-radius: 20px;
  min-height: 360px;
  background: linear-gradient(145deg, rgba(23, 22, 19, 0.6), rgba(10, 9, 8, 0.4));
  border: 1px solid var(--color-border);
  overflow: hidden;
  backdrop-filter: blur(6px);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  animation: fadeUp 0.7s ease 0.2s both;
}
.hero-panel::before,
.hero-panel::after {
  content: "";
  position: absolute;
  width: 45px;
  height: 45px;
  border-color: rgba(201, 169, 106, 0.5);
  border-style: solid;
  pointer-events: none;
}
.hero-panel::before {
  top: 12px;
  left: 12px;
  border-width: 1px 0 0 1px;
}
.hero-panel::after {
  bottom: 12px;
  right: 12px;
  border-width: 0 1px 1px 0;
}
.hero-panel-inner {
  background: rgba(15, 14, 12, 0.55);
  border-radius: 14px;
  padding: 24px;
  border: 1px solid rgba(201, 169, 106, 0.14);
}
.hero-panel-stats {
  display: flex;
  gap: 28px;
  margin-bottom: 14px;
}
.panel-stat { text-align: left; }
.panel-stat .num {
  font-family: var(--font-num);
  font-size: 34px;
  font-weight: 700;
  color: var(--color-primary-hover);
  line-height: 1;
  display: block;
}
.panel-stat .label {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 6px;
}
.hero-panel-desc {
  font-size: 13px;
  color: #B9B0A3;
  line-height: 1.6;
}

/* ---- Stats Bar ---- */
.stats-bar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 28px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item {
  text-align: center;
  border-radius: 14px;
  padding: 16px 12px;
  transition: all 0.3s;
}
.stat-item:hover {
  background: var(--color-surface-2);
  box-shadow: var(--shadow-hover);
}
.stat-item .stat-num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.1;
}
.stat-item .stat-num .plus { color: var(--color-primary-hover); font-size: 24px; vertical-align: top; }
.stat-item .stat-label {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 8px;
}
.stat-item .status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.stat-item.online .stat-num {
  color: var(--color-accent);
}

/* ---- Compare Table ---- */
.compare-section { background: var(--color-bg); }
.compare-table-wrap {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.table-scroll { overflow-x: auto; }
.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}
.compare-table th,
.compare-table td {
  padding: 18px 20px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.compare-table thead th {
  background: var(--color-surface-2);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
}
.compare-table thead th .lv-name { display: block; margin-top: 4px; font-size: 14px; font-weight: 600; color: var(--color-primary); }
.compare-table thead th .lv-icon { font-size: 22px; display: block; margin-bottom: 4px; }
.compare-table td {
  font-size: 14px;
  color: var(--color-text-muted);
}
.compare-table td .yes {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 17px;
}
.compare-table td .no {
  color: #5D564E;
  font-size: 15px;
}
.compare-table td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--color-text);
}
.compare-table .col-highlight {
  background: rgba(201, 169, 106, 0.04);
  border-left: 1px solid rgba(201, 169, 106, 0.35);
  border-right: 1px solid rgba(201, 169, 106, 0.35);
  position: relative;
}
.compare-table .col-highlight thead th { background: rgba(201, 169, 106, 0.1); }
.compare-table th.recommend {
  position: relative;
}
.compare-table .recommend-tag {
  position: absolute;
  top: -10px;
  right: 14px;
  background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary-hover));
  color: #171310;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
}
.compare-table tfoot td { border-bottom: none; padding: 18px 20px; }

/* 移动端等级卡 */
.mobile-lv-cards { display: none; }
.lv-card {
  background: var(--color-surface);
  border-radius: 14px;
  border: 1px solid var(--color-border);
  padding: 24px;
  margin-bottom: 16px;
  transition: box-shadow 0.3s;
}
.lv-card.recommend {
  border-top: 3px solid var(--color-primary);
  box-shadow: 0 0 0 1px rgba(201, 169, 106, 0.25);
}
.lv-card h4 { color: var(--color-primary); margin-bottom: 14px; font-size: 18px; }
.lv-card ul { list-style: none; margin: 0; padding: 0; }
.lv-card ul li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  color: var(--color-text-muted);
  font-size: 14px;
}
.lv-card ul li .yes { color: var(--color-primary); }

/* ---- Highlights ---- */
.highlight-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 24px; }
.highlight-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.3s, border-color 0.25s;
  display: flex;
  flex-direction: column;
}
.highlight-card:hover {
  border-color: rgba(201, 169, 106, 0.4);
  box-shadow: var(--shadow-hover);
}
.highlight-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--color-primary-deep), var(--color-primary-hover));
  transition: width 0.4s ease;
}
.highlight-card:hover::after { width: 100%; }
.highlight-card.featured {
  background: linear-gradient(160deg, var(--color-surface-2), var(--color-surface));
  border-color: rgba(201, 169, 106, 0.3);
}
.hl-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(201, 169, 106, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 20px;
  transition: all 0.3s;
}
.highlight-card:hover .hl-icon {
  background: var(--color-primary);
  color: #171310;
}
.highlight-card h3 { margin-bottom: 12px; }
.highlight-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  flex: 1;
}
.hl-footer {
  padding-top: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hl-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  transition: gap 0.2s;
}
.hl-link:hover { gap: 10px; color: var(--color-primary-hover); }

/* ---- Premium Preview ---- */
.premium-section { background: var(--color-surface); }
.premium-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.premium-card {
  background: var(--color-surface-2);
  border-radius: 14px;
  border: 1px solid var(--color-border);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow 0.3s, border-color 0.3s;
}
.premium-card:hover { box-shadow: var(--shadow-hover); border-color: rgba(201, 169, 106, 0.35); }
.premium-cover {
  position: relative;
  aspect-ratio: 3/2;
  overflow: hidden;
}
.premium-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.premium-card:hover .premium-cover img { transform: scale(1.04); }
.premium-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(201, 169, 106, 0.92);
  color: #171310;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  z-index: 2;
}
.lock-overlay {
  position: absolute;
  inset: 0;
  background: rgba(12, 11, 9, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.3s;
}
.lock-overlay .lock-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
}
.premium-card.locked { filter: saturate(0.75); }
.premium-card.unlocked .lock-overlay { opacity: 0; pointer-events: none; }
.premium-card.unlocked:hover .lock-overlay { opacity: 0; }
.premium-info { padding: 18px 20px; }
.premium-info h3 { font-size: 17px; margin-bottom: 8px; }
.premium-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 8px;
}

/* ---- News List ---- */
.news-section { background: var(--color-bg); }
.news-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 32px; }
.news-featured {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  display: block;
  min-height: 300px;
  background: var(--color-surface);
}
.news-featured .featured-img {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(15,14,12,0.1), rgba(10,9,8,0.65)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  transition: transform 0.5s ease;
  z-index: 1;
}
.news-featured:hover .featured-img { transform: scale(1.03); }
.news-featured .featured-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 28px;
  z-index: 2;
  background: linear-gradient(to top, rgba(10, 9, 8, 0.9) 0%, transparent 100%);
}
.news-featured .featured-content h3 {
  color: #fff;
  font-size: 20px;
  margin: 10px 0 8px;
  line-height: 1.4;
}
.news-featured .featured-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: rgba(236, 231, 222, 0.7);
}
.news-list { display: flex; flex-direction: column; }
.news-item {
  display: flex;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.2s;
}
.news-item:last-child { border-bottom: none; }
.news-item:hover { background: rgba(201, 169, 106, 0.02); }
.news-thumb {
  width: 96px;
  height: 72px;
  border-radius: 8px;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--color-surface-2);
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-body { flex: 1; min-width: 0; }
.news-body h3 {
  font-size: 16px;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-body .news-summary {
  font-size: 13px;
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
  line-height: 1.5;
}
.news-bottom {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-muted);
}
.news-bottom .badge { font-size: 10px; padding: 2px 8px; }
.read-more {
  margin-left: auto;
  font-size: 13px;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s;
}
.read-more:hover { gap: 8px; text-decoration: none; }

/* 空态 */
.empty-state {
  grid-column: 1 / -1;
  background: var(--color-surface);
  border: 1px dashed rgba(201, 169, 106, 0.25);
  border-radius: 14px;
  padding: 48px;
  text-align: center;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.empty-state .empty-icon {
  font-size: 40px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  opacity: 0.5;
}
.empty-state h4 { color: var(--color-text); margin-bottom: 6px; }
.empty-state p { color: var(--color-text-muted); font-size: 14px; margin: 0; }

/* ---- FAQ ---- */
.faq-section { background: var(--color-bg); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 0;
  transition: border-color 0.3s;
}
.faq-item.active {
  border-color: rgba(201, 169, 106, 0.35);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  gap: 16px;
  user-select: none;
}
.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(201, 169, 106, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
  transition: transform 0.35s ease, background 0.3s;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: #171310;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 16px;
  margin: 0 24px 20px;
  padding-left: 0;
  padding-right: 0;
}

/* ---- CTA Banner ---- */
.cta-banner {
  position: relative;
  background: linear-gradient(120deg, #241E12 0%, #1A1713 50%, #241E12 100%);
  border-radius: 18px;
  padding: 56px 48px;
  overflow: hidden;
  border-top: 1px solid rgba(201, 169, 106, 0.35);
}
.cta-banner::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -40px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(201, 169, 106, 0.14) 0%, transparent 70%);
  pointer-events: none;
}
.cta-banner::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -60px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(33, 166, 122, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  z-index: 2;
  flex-wrap: wrap;
}
.cta-text { flex: 1; min-width: 280px; }
.cta-text h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 10px;
}
.cta-text p {
  color: var(--color-text-muted);
  font-size: 17px;
  margin: 0;
}
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---- Footer ---- */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 60px 0 0;
  margin-top: 72px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 18px;
  line-height: 1.7;
}
.social-icons { display: flex; gap: 10px; }
.social-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 14px;
  transition: all 0.25s;
}
.social-icon:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-3px);
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  color: var(--color-text-muted);
  font-size: 13px;
  transition: color 0.2s;
}
.footer-col ul a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 22px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 12px;
  color: var(--color-text-muted);
  margin: 4px 0;
}
.footer-bottom a { color: var(--color-text-muted); }
.footer-bottom a:hover { color: var(--color-primary); }

/* ---- Toast ---- */
#toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-primary);
  border-radius: 10px;
  padding: 14px 28px;
  font-size: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s ease;
  z-index: 1000;
  white-space: nowrap;
}
#toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
#toast .toast-icon { margin-right: 8px; color: var(--color-primary); }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .hero-content { gap: 32px; }
  .hero-left { flex-basis: 55%; }
  .hero h1 { font-size: 38px; }
  .highlight-grid { grid-template-columns: 1fr 1fr; }
  .highlight-card.featured { grid-column: span 2; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .search-wrap input { width: 160px; }
}

@media (max-width: 767px) {
  .section { padding: 48px 0; }
  .container { padding: 0 20px; }
  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
  .search-wrap { display: none; }
  .header-cta { padding: 8px 16px; font-size: 13px; }
  .channel-tabs { height: 44px; }
  .channel-tabs a { padding: 7px 16px; font-size: 13px; }
  .hero { padding: 56px 0 48px; }
  .hero-content { flex-direction: column; }
  .hero-left { flex-basis: auto; }
  .hero-right { width: 100%; }
  .hero-panel { min-height: 260px; padding: 20px; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 16px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-item .stat-num { font-size: 32px; }
  .compare-table-wrap.desktop { display: none; }
  .mobile-lv-cards { display: block; }
  .highlight-grid { grid-template-columns: 1fr; }
  .highlight-card.featured { grid-column: auto; }
  .premium-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .cta-banner { padding: 36px 24px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .news-item { flex-direction: row; }
  .news-thumb { width: 80px; height: 60px; }
  .read-more { display: none; }
}

@media (max-width: 520px) {
  .header-row { height: 52px; }
  .logo { font-size: 16px; }
  .logo .logo-mark { width: 32px; height: 32px; font-size: 14px; }
  .lang-btn { display: none; }
  .btn-lg { padding: 14px 30px; font-size: 15px; }
  .hero-panel-stats { flex-direction: column; gap: 14px; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-actions .btn { width: 100%; }
  .compare-table th, .compare-table td { padding: 12px 10px; }
}

/* ---- Foundation override ---- */
.grid-x { margin-bottom: 0; }
.cell { margin-bottom: 0; }

/* roulang page: article */
:root {
  --color-bg: #0F0E0C;
  --color-surface: #171613;
  --color-surface-2: #1E1D19;
  --color-primary: #C9A96A;
  --color-primary-hover: #DDBE82;
  --color-primary-deep: #A08040;
  --color-accent: #21A67A;
  --color-text: #ECE7DE;
  --color-text-muted: #9A9285;
  --color-border: rgba(201,169,106,0.18);
  --color-danger: #D96C4F;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow-card: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.5), 0 0 0 1px rgba(201,169,106,0.25);
  --shadow-cta: 0 4px 16px rgba(201,169,106,0.25);
  --font-base: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Inter", "Arial", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol { list-style-position: inside; }

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

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (min-width: 1024px) { .container { padding: 0 48px; } }

/* ===== 双层导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(23, 22, 19, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201,169,106,0.18);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.5); }

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
  white-space: nowrap;
  text-decoration: none;
}
.logo:hover { color: var(--color-text); text-decoration: none; }

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary-hover));
  color: #171310;
  font-size: 13px;
  font-weight: 800;
  border-radius: var(--radius-sm);
  letter-spacing: 0;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-wrap { position: relative; display: flex; align-items: center; }
.search-wrap input[type="search"] {
  width: 200px;
  height: 36px;
  background: var(--color-surface-2);
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 38px 0 14px;
  color: var(--color-text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-wrap input[type="search"]::placeholder { color: #6E675D; }
.search-wrap input[type="search"]:focus {
  border-color: rgba(201,169,106,0.6);
  box-shadow: 0 0 0 2px rgba(201,169,106,0.15);
}
.search-icon {
  position: absolute;
  right: 12px;
  color: var(--color-text-muted);
  font-size: 13px;
  pointer-events: none;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  transition: all 0.2s;
}
.lang-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  border-radius: 8px;
  padding: 14px 32px;
  border: 0;
  text-decoration: none;
  transition: all 0.2s ease;
  line-height: 1;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: linear-gradient(135deg, #A08040, #DDBE82);
  color: #171310;
  box-shadow: var(--shadow-cta);
  position: relative;
  overflow: hidden;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(201,169,106,0.35);
  color: #171310;
}
.btn-primary:active { transform: translateY(1px); box-shadow: none; }
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
}
.btn-primary:hover::after { left: 120%; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
}
.btn-outline:hover {
  background: rgba(201,169,106,0.08);
  color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-2px);
}

.header-cta { padding: 10px 20px; font-size: 14px; }

/* 频道导航 */
.channel-nav {
  border-top: 1px solid rgba(255,255,255,0.05);
  background: rgba(23,22,19,0.92);
}
.channel-tabs {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 8px 0;
  white-space: nowrap;
}
.channel-tabs::-webkit-scrollbar { display: none; }
.channel-tabs a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 20px;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.25s ease;
  border: 1px solid transparent;
}
.channel-tabs a:hover {
  color: var(--color-primary);
  border-color: var(--color-border);
  background: rgba(201,169,106,0.06);
}
.channel-tabs a.active {
  background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary-hover));
  color: #171310;
  font-weight: 600;
  border-color: transparent;
}
.channel-tabs .tab-icon { font-size: 13px; }

/* ===== 面包屑 ===== */
.breadcrumb-wrap {
  padding: 20px 0 4px;
  background: transparent;
}
.breadcrumb {
  font-size: 13px;
  color: var(--color-text-muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .current { color: var(--color-primary); }

/* ===== 文章页主体 ===== */
.article-main { padding: 32px 0 80px; }

.article-header {
  background: linear-gradient(120deg, var(--color-surface) 0%, #141311 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 40px 32px;
  position: relative;
  overflow: hidden;
  margin-bottom: 36px;
}
.article-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary-deep), var(--color-primary-hover), transparent);
}
.article-header h1 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: 16px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.article-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .meta-item i { color: var(--color-primary); font-size: 12px; }
.article-meta .cat-badge {
  background: rgba(201,169,106,0.12);
  color: var(--color-primary);
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

.article-body {
  max-width: 860px;
  margin: 0 auto;
}
.article-body .not-found {
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 60px 32px;
  text-align: center;
  font-size: 20px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}
.article-body .not-found a {
  display: inline-block;
  margin-top: 16px;
  color: var(--color-primary);
  font-size: 14px;
}

/* 正文排版 */
.article-content { font-size: 16px; line-height: 1.8; color: var(--color-text); }
.article-content p { margin-bottom: 1.5em; }
.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 1.8em 0 0.8em;
  padding-left: 14px;
  border-left: 3px solid var(--color-primary);
  line-height: 1.3;
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 1.6em 0 0.6em;
  color: var(--color-primary-hover);
}
.article-content h4 {
  font-size: 17px;
  font-weight: 600;
  margin: 1.4em 0 0.5em;
}
.article-content ul, .article-content ol {
  margin: 0 0 1.5em 1.2em;
}
.article-content li { margin-bottom: 0.5em; }
.article-content ul li::marker { color: var(--color-primary); }
.article-content ol li::marker { color: var(--color-primary); font-weight: 600; }
.article-content blockquote {
  background: var(--color-surface-2);
  border-left: 3px solid var(--color-primary);
  padding: 20px 24px;
  margin: 1.6em 0;
  border-radius: 0 10px 10px 0;
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1.75;
}
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  background: var(--color-surface);
  border-radius: 10px;
  overflow: hidden;
  font-size: 14px;
}
.article-content table th {
  background: var(--color-surface-2);
  color: var(--color-primary);
  font-weight: 600;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.article-content table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  color: var(--color-text);
}
.article-content table tr:last-child td { border-bottom: 0; }
.article-content table tr:hover td { background: rgba(201,169,106,0.03); }
.article-content img { border-radius: 12px; margin: 1.5em 0; }
.article-content a { color: var(--color-primary); text-decoration: underline; text-decoration-color: rgba(201,169,106,0.3); }
.article-content a:hover { color: var(--color-primary-hover); }
.article-content code {
  background: var(--color-surface-2);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--color-primary);
}
.article-content pre {
  background: var(--color-surface-2);
  border-radius: 10px;
  padding: 20px;
  overflow-x: auto;
  margin: 1.5em 0;
  border: 1px solid var(--color-border);
}
.article-content pre code { background: transparent; padding: 0; }

/* 文章底部标签/分享 */
.article-footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  margin: 40px 0 48px;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-list .tag {
  display: inline-block;
  background: rgba(201,169,106,0.1);
  color: var(--color-primary);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 500;
  transition: background 0.2s;
}
.tag-list .tag:hover { background: rgba(201,169,106,0.2); text-decoration: none; }
.share-row { display: flex; align-items: center; gap: 10px; color: var(--color-text-muted); font-size: 13px; }
.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-muted);
  font-size: 13px;
  background: transparent;
  transition: all 0.2s;
}
.share-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* 相关推荐 */
.related-posts { max-width: 1000px; margin: 0 auto; }
.section-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}
.section-title-wrap .bar {
  width: 3px;
  height: 22px;
  background: linear-gradient(180deg, var(--color-primary-hover), var(--color-primary-deep));
  border-radius: 2px;
}
.section-title-wrap h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.related-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.related-grid .cell { padding: 0; }

.related-card {
  background: var(--color-surface);
  border: 1px solid rgba(201,169,106,0.12);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.3s, transform 0.3s;
  height: 100%;
  display: flex;
  flex-direction: column;
  text-decoration: none;
}
.related-card:hover {
  border-color: rgba(201,169,106,0.35);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  text-decoration: none;
}
.related-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-surface-2);
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .related-thumb img { transform: scale(1.04); }
.related-thumb .cat-chip {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(201,169,106,0.92);
  color: #171310;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
}
.related-info { padding: 16px 18px 18px; flex: 1; display: flex; flex-direction: column; }
.related-info h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card:hover .related-info h3 { color: var(--color-primary-hover); }
.related-info .meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: auto;
  padding-top: 10px;
}
.related-info .meta i { font-size: 11px; color: var(--color-primary); }

/* 返回入口 */
.back-link-row {
  max-width: 1000px;
  margin: 40px auto 0;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: gap 0.2s;
}
.back-link:hover { gap: 12px; color: var(--color-primary-hover); text-decoration: none; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 56px 0 0;
  margin-top: 32px;
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-brand { flex: 1 1 260px; max-width: 340px; }
.footer-brand p { color: var(--color-text-muted); font-size: 13px; line-height: 1.7; margin-top: 14px; }
.social-icons { display: flex; gap: 10px; margin-top: 18px; }
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-muted);
  font-size: 14px;
  transition: all 0.2s;
}
.social-icon:hover { border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-2px); }
.footer-col { flex: 1 1 180px; min-width: 160px; }
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  color: var(--color-text-muted);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: var(--color-text-muted);
}
.footer-bottom p { margin-bottom: 4px; }
.footer-bottom a { color: var(--color-text-muted); }
.footer-bottom a:hover { color: var(--color-primary); }

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .article-header { padding: 32px 28px 26px; }
  .article-header h1 { font-size: 28px; }
  .related-grid .cell { flex: 0 0 50%; max-width: 50%; }
}

@media (max-width: 767px) {
  .container { padding: 0 20px; }
  .header-row { min-height: 52px; flex-wrap: wrap; }
  .search-wrap input[type="search"] { width: 130px; }
  .header-cta { display: none; }
  .channel-tabs a { padding: 6px 14px; font-size: 13px; }
  .article-main { padding: 20px 0 60px; }
  .article-header { padding: 26px 20px 22px; border-radius: 12px; }
  .article-header h1 { font-size: 24px; }
  .article-meta { gap: 12px; font-size: 12px; }
  .article-meta .meta-item { gap: 4px; }
  .article-meta .meta-item i { font-size: 11px; }
  .article-content { font-size: 15px; }
  .article-content h2 { font-size: 22px; }
  .article-content h3 { font-size: 18px; }
  .article-content blockquote { padding: 16px 18px; }
  .related-grid { display: block; }
  .related-grid .cell { margin-bottom: 20px; flex: 0 0 100%; max-width: 100%; }
  .section-title-wrap h2 { font-size: 22px; }
  .article-footer-meta { flex-direction: column; align-items: flex-start; gap: 12px; }
  .share-row { width: 100%; justify-content: flex-start; }
  .footer-grid { gap: 24px; }
  .footer-brand { flex: 0 0 100%; max-width: 100%; }
  .footer-col { flex: 0 0 calc(50% - 12px); min-width: 0; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .search-wrap input[type="search"] { width: 0; padding: 0 30px 0 0; border: none; }
  .search-wrap input[type="search"]:focus { width: 130px; padding: 0 38px 0 10px; border: 1px solid rgba(201,169,106,0.6); }
  .lang-btn { padding: 6px 8px; }
  .article-header { padding: 22px 16px 18px; }
  .article-header h1 { font-size: 21px; }
  .article-meta { flex-direction: column; gap: 8px; }
  .section-title-wrap h2 { font-size: 20px; }
}

/* ===== 焦点可见性 ===== */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* roulang page: category1 */
:root {
  --color-bg: #0F0E0C;
  --color-surface: #171613;
  --color-surface-2: #1E1D19;
  --color-primary: #C9A96A;
  --color-primary-hover: #DDBE82;
  --color-primary-deep: #A08040;
  --color-accent: #21A67A;
  --color-text: #ECE7DE;
  --color-text-muted: #9A9285;
  --color-border: rgba(201, 169, 106, 0.18);
  --color-danger: #D96C4F;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow-card: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.5), 0 0 0 1px rgba(201,169,106,0.25);
  --shadow-cta: 0 4px 16px rgba(201,169,106,0.25);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-number: "DIN Alternate", "Inter", "Arial", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-hover); text-decoration: underline; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
h1, h2, h3, h4 { color: var(--color-text); line-height: 1.3; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 32px; font-size: 16px; font-weight: 600;
  border-radius: var(--radius-md); border: 1px solid transparent;
  transition: all var(--transition-fast); letter-spacing: 0.02em;
  text-decoration: none !important; position: relative; overflow: hidden;
}
.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }
.btn:active { transform: translateY(1px); box-shadow: none; }
.btn-primary {
  background: linear-gradient(135deg, #A08040, #DDBE82);
  color: #171310; box-shadow: var(--shadow-cta);
}
.btn-primary:hover { background: linear-gradient(135deg, #b89050, #e8cc90); transform: translateY(-2px); }
.btn-primary::after {
  content: ""; position: absolute; top: 0; left: -80%;
  width: 50%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.25), transparent);
  transform: skewX(-20deg); transition: left 0.6s ease;
}
.btn-primary:hover::after { left: 130%; }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: rgba(201,169,106,0.08); border-color: var(--color-primary-hover); color: var(--color-primary-hover); transform: translateY(-2px); }
.btn-md { padding: 11px 22px; font-size: 14px; }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(15,14,12,0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-border); transition: all var(--transition-normal); }
.site-header.scrolled { background: rgba(23,22,19,0.96); box-shadow: 0 4px 24px rgba(0,0,0,0.5); }
.header-row { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 20px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none !important; color: var(--color-text) !important; }
.logo-mark { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; background: linear-gradient(135deg, #A08040, #DDBE82); color: #171310; font-weight: 800; font-size: 15px; border-radius: var(--radius-md); letter-spacing: -0.02em; }
.logo span:last-child { font-size: 18px; font-weight: 700; letter-spacing: 0.01em; white-space: nowrap; }
.header-right { display: flex; align-items: center; gap: 16px; }
.search-wrap { position: relative; }
.search-wrap input { width: 210px; padding: 10px 38px 10px 16px; border-radius: var(--radius-md); border: 1px solid transparent; background: var(--color-surface-2); color: var(--color-text); font-size: 14px; outline: none; transition: border-color var(--transition-fast); }
.search-wrap input::placeholder { color: #6E675D; }
.search-wrap input:focus { border-color: rgba(201,169,106,0.6); box-shadow: 0 0 0 3px rgba(201,169,106,0.12); }
.search-icon { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); color: var(--color-text-muted); font-size: 13px; pointer-events: none; }
.lang-btn { display: inline-flex; align-items: center; gap: 6px; background: transparent; border: 1px solid rgba(201,169,106,0.25); color: var(--color-text); padding: 8px 14px; border-radius: var(--radius-md); font-size: 13px; transition: all var(--transition-fast); }
.lang-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.header-cta { padding: 10px 22px; font-size: 14px; }

/* ===== Channel Nav ===== */
.channel-nav { border-top: 1px solid rgba(255,255,255,0.05); background: rgba(23,22,19,0.85); }
.channel-tabs { display: flex; align-items: center; gap: 8px; overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; padding: 8px 0; }
.channel-tabs::-webkit-scrollbar { display: none; }
.channel-tabs a { display: inline-flex; align-items: center; gap: 7px; padding: 9px 20px; border-radius: 100px; font-size: 14px; font-weight: 500; color: var(--color-text-muted); white-space: nowrap; transition: all var(--transition-fast); text-decoration: none !important; }
.channel-tabs a i { font-size: 14px; }
.channel-tabs a:hover { color: var(--color-text); background: rgba(201,169,106,0.08); }
.channel-tabs a.active { background: linear-gradient(135deg, #A08040, #DDBE82); color: #171310; font-weight: 600; box-shadow: 0 2px 10px rgba(201,169,106,0.25); }

/* ===== Page Hero ===== */
.page-hero { position: relative; padding: 80px 0 64px; background-image: linear-gradient(rgba(15,14,12,0.82), rgba(15,14,12,0.88)), url('/assets/images/backpic/back-1.webp'); background-size: cover; background-position: center; border-bottom: 1px solid var(--color-border); }
.page-hero::after { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(201,169,106,0.4), transparent); }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--color-text-muted); margin-bottom: 24px; }
.breadcrumb a { color: var(--color-text-muted); text-decoration: none; transition: color var(--transition-fast); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: rgba(154,146,133,0.5); }
.breadcrumb .current { color: var(--color-primary); }
.page-hero h1 { font-size: 42px; font-weight: 800; letter-spacing: -0.01em; margin-bottom: 16px; }
.page-hero .hero-sub { font-size: 17px; color: var(--color-text-muted); max-width: 620px; line-height: 1.7; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== Category Layout ===== */
.category-layout { padding: 64px 0 80px; }
.anchor-nav { position: sticky; top: 140px; align-self: flex-start; padding: 24px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.anchor-nav h3 { font-size: 15px; color: var(--color-primary); margin-bottom: 18px; display: flex; align-items: center; gap: 8px; text-transform: uppercase; letter-spacing: 0.08em; }
.anchor-nav h3::after { content: ""; flex: 1; height: 1px; background: rgba(201,169,106,0.15); }
.anchor-nav ul li { margin-bottom: 6px; }
.anchor-nav ul a { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: var(--radius-md); color: var(--color-text-muted); font-size: 14px; transition: all var(--transition-fast); text-decoration: none !important; border-left: 2px solid transparent; }
.anchor-nav ul a:hover { color: var(--color-text); background: rgba(201,169,106,0.06); }
.anchor-nav ul a.active { color: var(--color-primary); background: rgba(201,169,106,0.08); border-left-color: var(--color-primary); }
.anchor-nav ul a i { width: 18px; text-align: center; font-size: 13px; }

/* ===== Content Sections ===== */
.content-area { padding-left: 16px; }
.content-block { margin-bottom: 64px; }
.content-block:last-child { margin-bottom: 0; }
.block-header { display: flex; align-items: center; gap: 14px; margin-bottom: 36px; }
.block-header::before { content: ""; width: 3px; height: 24px; background: linear-gradient(180deg, var(--color-primary-deep), var(--color-primary-hover)); border-radius: 2px; }
.block-header h2 { font-size: 28px; font-weight: 700; letter-spacing: -0.005em; }
.block-header .block-sub { font-size: 13px; color: var(--color-text-muted); margin-left: auto; text-transform: uppercase; letter-spacing: 0.08em; }

/* ===== Level Cards ===== */
.level-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.level-card { position: relative; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px 24px; transition: all var(--transition-normal); overflow: hidden; }
.level-card::after { content: ""; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: linear-gradient(90deg, var(--color-primary-deep), var(--color-primary-hover)); transition: width var(--transition-normal); }
.level-card:hover { box-shadow: var(--shadow-hover); border-color: rgba(201,169,106,0.32); }
.level-card:hover::after { width: 100%; }
.level-card .level-icon { width: 48px; height: 48px; border-radius: var(--radius-md); background: rgba(201,169,106,0.12); color: var(--color-primary); display: inline-flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 16px; }
.level-card .level-icon.green { background: rgba(33,166,122,0.12); color: var(--color-accent); }
.level-card h3 { font-size: 19px; font-weight: 600; margin-bottom: 8px; }
.level-card .level-desc { font-size: 14px; color: var(--color-text-muted); line-height: 1.6; }
.level-card .recommend-tag { position: absolute; top: 18px; right: 18px; background: linear-gradient(135deg, #A08040, #DDBE82); color: #171310; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 100px; letter-spacing: 0.04em; }

/* ===== Compare Table ===== */
.compare-table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
.compare-table { width: 100%; border-collapse: collapse; min-width: 640px; background: var(--color-surface); }
.compare-table th, .compare-table td { padding: 16px 18px; text-align: center; font-size: 14px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.compare-table th { background: var(--color-surface-2); color: var(--color-text); font-weight: 600; }
.compare-table th:first-child, .compare-table td:first-child { text-align: left; color: var(--color-text-muted); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .check { color: var(--color-primary); font-weight: 700; }
.compare-table .dash { color: rgba(154,146,133,0.35); }
.compare-table .highlight-col { background: rgba(201,169,106,0.04); border-left: 1px solid rgba(201,169,106,0.22); border-right: 1px solid rgba(201,169,106,0.22); }
.compare-table th.highlight-col { background: rgba(201,169,106,0.1); position: relative; }
.compare-table th.highlight-col .rec-badge { position: absolute; top: 4px; right: 8px; font-size: 10px; font-weight: 700; color: var(--color-primary); letter-spacing: 0.06em; }

/* ===== Content Cards ===== */
.media-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.media-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition-normal); }
.media-card:hover { box-shadow: var(--shadow-hover); border-color: rgba(201,169,106,0.28); transform: translateY(-3px); }
.media-card .media-thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--color-surface-2); }
.media-card .media-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-normal); }
.media-card:hover .media-thumb img { transform: scale(1.03); }
.media-card .media-tag { position: absolute; top: 12px; left: 12px; background: rgba(201,169,106,0.9); color: #171310; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 100px; }
.media-card .media-body { padding: 18px 20px 20px; }
.media-card .media-body h3 { font-size: 16px; font-weight: 600; line-height: 1.4; margin-bottom: 6px; }
.media-card .media-body p { font-size: 13px; color: var(--color-text-muted); line-height: 1.6; }

/* ===== Process Steps ===== */
.steps-list { counter-reset: step; display: grid; gap: 0; }
.step-item { position: relative; display: flex; gap: 20px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.step-item:last-child { border-bottom: none; }
.step-num { counter-increment: step; flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%; background: rgba(201,169,106,0.12); color: var(--color-primary); font-weight: 700; font-size: 17px; display: inline-flex; align-items: center; justify-content: center; }
.step-item .step-content { flex: 1; }
.step-item .step-content h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.step-item .step-content p { font-size: 14px; color: var(--color-text-muted); line-height: 1.6; }

/* ===== Quote ===== */
.blockquote { background: var(--color-surface-2); border-left: 3px solid var(--color-primary); padding: 18px 24px; border-radius: 0 var(--radius-md) var(--radius-md) 0; color: var(--color-text-muted); font-size: 14px; line-height: 1.7; margin: 28px 0; }

/* ===== FAQ ===== */
.faq-section { padding: 80px 0; border-top: 1px solid rgba(255,255,255,0.04); background: rgba(23,22,19,0.35); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 10px; padding: 0 24px; transition: border-color var(--transition-normal); }
.faq-item:hover { border-color: rgba(201,169,106,0.3); }
.faq-item.active { border-color: rgba(201,169,106,0.35); }
.faq-question { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; cursor: pointer; user-select: none; }
.faq-question h4 { font-size: 16px; font-weight: 600; }
.faq-question .faq-icon { position: relative; width: 18px; height: 18px; flex-shrink: 0; }
.faq-question .faq-icon::before, .faq-question .faq-icon::after { content: ""; position: absolute; background: var(--color-primary); border-radius: 1px; transition: transform var(--transition-normal); }
.faq-question .faq-icon::before { top: 8px; left: 0; width: 18px; height: 2px; }
.faq-question .faq-icon::after { top: 0; left: 8px; width: 2px; height: 18px; }
.faq-item.active .faq-icon::after { transform: rotate(90deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; font-size: 14px; color: var(--color-text-muted); line-height: 1.7; }
.faq-answer p { padding-bottom: 20px; }

/* ===== CTA ===== */
.cta-section { padding: 80px 0; position: relative; }
.cta-banner { position: relative; background: linear-gradient(120deg, #241E12 0%, #1A1713 50%, #241E12 100%); border-radius: 18px; padding: 56px 48px; overflow: hidden; border-top: 1px solid rgba(201,169,106,0.25); }
.cta-banner::before, .cta-banner::after { content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%; pointer-events: none; }
.cta-banner::before { top: -80px; left: -40px; background: radial-gradient(circle, rgba(201,169,106,0.16) 0%, transparent 70%); }
.cta-banner::after { bottom: -100px; right: -30px; background: radial-gradient(circle, rgba(33,166,122,0.1) 0%, transparent 70%); }
.cta-inner { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-text h2 { font-size: 30px; font-weight: 800; margin-bottom: 10px; color: var(--color-text); }
.cta-text p { font-size: 16px; color: var(--color-text-muted); }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: var(--color-surface); border-top: 1px solid var(--color-border); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; margin: 18px 0; }
.social-icons { display: flex; gap: 10px; }
.social-icon { width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(201,169,106,0.25); display: inline-flex; align-items: center; justify-content: center; color: var(--color-text-muted); font-size: 14px; transition: all var(--transition-fast); text-decoration: none !important; }
.social-icon:hover { border-color: var(--color-primary); color: var(--color-primary); background: rgba(201,169,106,0.08); }
.footer-col h4 { font-size: 14px; font-weight: 700; color: var(--color-primary); margin-bottom: 18px; letter-spacing: 0.03em; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 13px; color: var(--color-text-muted); transition: all var(--transition-fast); text-decoration: none !important; }
.footer-col ul a:hover { color: var(--color-primary); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding: 22px 0; text-align: center; }
.footer-bottom p { font-size: 12px; color: var(--color-text-muted); line-height: 1.6; }
.footer-bottom a { color: var(--color-text-muted); text-decoration: none; transition: color var(--transition-fast); }
.footer-bottom a:hover { color: var(--color-primary); }

/* ===== Toast ===== */
.toast { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--color-surface); color: var(--color-text); padding: 14px 28px; border-radius: var(--radius-md); font-size: 14px; border: 1px solid var(--color-border); box-shadow: var(--shadow-hover); opacity: 0; pointer-events: none; transition: all 0.35s ease; z-index: 9999; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast i { color: var(--color-accent); margin-right: 8px; }

/* ===== Animations ===== */
.fade-up { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===== Media Queries ===== */
@media screen and (max-width: 1023px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .anchor-nav { position: static; margin-bottom: 32px; }
  .content-area { padding-left: 0; }
  .search-wrap input { width: 160px; }
}
@media screen and (max-width: 767px) {
  .section { padding: 48px 0; }
  .header-row { height: 56px; }
  .logo span:last-child { font-size: 15px; }
  .search-wrap { display: none; }
  .header-cta { padding: 8px 16px; font-size: 13px; }
  .page-hero { padding: 48px 0 40px; }
  .page-hero h1 { font-size: 30px; }
  .hero-sub { font-size: 15px; }
  .block-header h2 { font-size: 22px; }
  .level-grid { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .cta-banner { padding: 36px 24px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .compare-table-wrap { border-radius: var(--radius-md); }
}
@media screen and (max-width: 520px) {
  .container { padding: 0 16px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .cta-actions .btn { width: 100%; }
  .step-item { flex-direction: column; gap: 10px; }
}

/* roulang page: category2 */
:root {
      --color-bg: #0F0E0C;
      --color-surface: #171613;
      --color-surface-2: #1E1D19;
      --color-primary: #C9A96A;
      --color-primary-hover: #DDBE82;
      --color-primary-deep: #A08040;
      --color-accent: #21A67A;
      --color-text: #ECE7DE;
      --color-text-muted: #9A9285;
      --color-border: rgba(201, 169, 106, 0.18);
      --color-danger: #D96C4F;
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 14px;
      --shadow-card: 0 1px 2px rgba(0,0,0,0.4);
      --shadow-hover: 0 8px 24px rgba(0,0,0,0.5), 0 0 0 1px rgba(201,169,106,0.25);
      --shadow-cta: 0 4px 16px rgba(201,169,106,0.25);
      --container-w: 1200px;
      --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: "DIN Alternate", "Inter", "Arial", sans-serif;
    }

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

    html { scroll-behavior: smooth; }

    body {
      font-family: var(--font-sans);
      background: var(--color-bg);
      color: var(--color-text);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

    body.menu-open { overflow: hidden; }

    a { color: var(--color-primary); text-decoration: none; transition: color .2s ease; }
    a:hover { color: var(--color-primary-hover); text-decoration: underline; }
    a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid rgba(201,169,106,.7); outline-offset: 2px; }

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

    ul, ol { list-style: none; }

    .container { max-width: var(--container-w); margin: 0 auto; padding-left: 24px; padding-right: 24px; }
    .container.wide { max-width: 1340px; }

    .section { padding: 72px 0; }

    h1, h2, h3, h4 { color: var(--color-text); line-height: 1.3; letter-spacing: -0.01em; }

    h1 { font-size: 40px; font-weight: 800; line-height: 1.2; }
    h2 { font-size: 30px; font-weight: 700; line-height: 1.25; margin-bottom: 40px; display: flex; align-items: center; gap: 14px; }
    h2::before { content: ""; width: 3px; height: 24px; background: linear-gradient(180deg, var(--color-primary-hover), var(--color-primary-deep)); border-radius: 2px; flex-shrink: 0; }
    h2 .h2-sub { font-size: 14px; font-weight: 400; color: var(--color-text-muted); letter-spacing: .02em; margin-left: auto; }
    h3 { font-size: 20px; font-weight: 600; line-height: 1.3; }
    h4 { font-size: 17px; font-weight: 600; }

    p { color: var(--color-text); line-height: 1.75; }

    @media screen and (max-width: 767px) {
      h1 { font-size: 30px; }
      h2 { font-size: 22px; margin-bottom: 32px; }
      h3 { font-size: 17px; }
    }

    /* Buttons */
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      font-size: 16px; font-weight: 600; line-height: 1; letter-spacing: .02em;
      padding: 14px 32px; border-radius: 8px; border: 1px solid transparent;
      cursor: pointer; transition: background-color .2s ease, transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      text-decoration: none;
    }
    .btn:active { transform: translateY(1px); box-shadow: none; }
    .btn-primary {
      background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary-hover));
      color: #171310; border-color: transparent; box-shadow: 0 4px 16px rgba(201,169,106,.2);
      position: relative; overflow: hidden;
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, var(--color-primary-hover), #E8CD96);
      color: #171310; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,169,106,.3);
      text-decoration: none;
    }
    .btn-primary::after {
      content: ""; position: absolute; top: 0; left: -80%; width: 50%; height: 100%;
      background: linear-gradient(105deg, transparent, rgba(255,255,255,.35), transparent);
      transform: skewX(-20deg); transition: left .6s ease;
    }
    .btn-primary:hover::after { left: 130%; }
    .btn-outline {
      background: transparent; color: var(--color-primary);
      border-color: rgba(201,169,106,.6);
    }
    .btn-outline:hover {
      background: rgba(201,169,106,.08); border-color: var(--color-primary-hover);
      color: var(--color-primary-hover); transform: translateY(-2px);
      text-decoration: none;
    }
    .btn-sm { padding: 9px 18px; font-size: 14px; border-radius: 6px; }

    /* Badge */
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      background: rgba(201,169,106,.12); color: var(--color-primary);
      font-size: 11px; font-weight: 600; letter-spacing: .04em;
      padding: 4px 10px; border-radius: 4px;
    }
    .badge-green { background: rgba(33,166,122,.12); color: var(--color-accent); }

    /* Header */
    .site-header { position: relative; z-index: 50; background: transparent; }
    .site-header.scrolled {
      background: rgba(23,22,19,.95);
      box-shadow: 0 1px 0 var(--color-border);
    }
    .site-header .header-row {
      display: flex; align-items: center; justify-content: space-between;
      min-height: 56px; gap: 24px;
    }
    .logo {
      display: inline-flex; align-items: center; gap: 10px;
      color: var(--color-text); text-decoration: none; font-weight: 700; font-size: 17px;
      white-space: nowrap; letter-spacing: -.01em;
    }
    .logo:hover { color: var(--color-primary); text-decoration: none; }
    .logo-mark {
      display: inline-flex; align-items: center; justify-content: center;
      width: 40px; height: 32px; border-radius: 6px;
      background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary-hover));
      color: #171310; font-family: var(--font-num); font-weight: 800; font-size: 16px;
      letter-spacing: -.02em; flex-shrink: 0;
    }
    .header-right { display: flex; align-items: center; gap: 16px; }
    .search-wrap { position: relative; display: flex; align-items: center; }
    .search-wrap input {
      width: 200px; background: var(--color-surface-2); border: 1px solid transparent;
      border-radius: 8px; padding: 10px 14px 10px 38px; color: var(--color-text);
      font-size: 13px; transition: border-color .2s ease, box-shadow .2s ease;
    }
    .search-wrap input::placeholder { color: #6E675D; }
    .search-wrap input:focus { outline: none; border-color: rgba(201,169,106,.6); box-shadow: 0 0 0 3px rgba(201,169,106,.12); }
    .search-icon { position: absolute; left: 14px; color: var(--color-text-muted); font-size: 13px; pointer-events: none; }
    .lang-btn {
      display: inline-flex; align-items: center; gap: 6px;
      background: transparent; border: 1px solid rgba(255,255,255,.1); color: var(--color-text-muted);
      border-radius: 8px; padding: 8px 12px; font-size: 13px; cursor: pointer;
      transition: border-color .2s ease, color .2s ease;
    }
    .lang-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
    .header-cta { padding: 10px 22px; font-size: 14px; }

    /* Channel nav */
    .channel-nav {
      background: rgba(15,14,12,.9); border-top: 1px solid rgba(255,255,255,.04);
      border-bottom: 1px solid rgba(201,169,106,.1);
      position: sticky; top: 0; z-index: 60;
      backdrop-filter: blur(8px);
    }
    .channel-nav.scrolled { background: rgba(15,14,12,.98); box-shadow: 0 8px 24px rgba(0,0,0,.3); }
    .channel-tabs { display: flex; align-items: center; gap: 12px; overflow-x: auto; padding: 10px 0; scrollbar-width: none; -ms-overflow-style: none; }
    .channel-tabs::-webkit-scrollbar { display: none; }
    .channel-tabs a {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 8px 16px; border-radius: 999px;
      color: var(--color-text-muted); font-size: 14px; font-weight: 500;
      white-space: nowrap; text-decoration: none;
      transition: background-color .2s ease, color .2s ease, border-color .2s ease;
      border: 1px solid transparent;
    }
    .channel-tabs a:hover { color: var(--color-primary); background: rgba(201,169,106,.08); text-decoration: none; }
    .channel-tabs a.active {
      background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary-hover));
      color: #171310; font-weight: 600;
      border-color: transparent;
    }
    .channel-tabs .tab-icon { font-size: 13px; }

    /* Page hero */
    .page-hero {
      background: linear-gradient(150deg, #141211 0%, #0F0E0C 60%, #0A0908 100%);
      padding: 64px 0 56px;
      border-bottom: 1px solid rgba(201,169,106,.1);
      position: relative; overflow: hidden;
    }
    .page-hero::before {
      content: ""; position: absolute; inset: 0;
      background-image: linear-gradient(rgba(201,169,106,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(201,169,106,.04) 1px, transparent 1px);
      background-size: 56px 56px; pointer-events: none;
    }
    .page-hero .container { position: relative; z-index: 2; }
    .breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--color-text-muted); margin-bottom: 24px; }
    .breadcrumb a { color: var(--color-text-muted); }
    .breadcrumb a:hover { color: var(--color-primary); }
    .breadcrumb .sep { opacity: .5; }
    .breadcrumb .current { color: var(--color-primary); }
    .page-hero h1 { margin-bottom: 16px; }
    .page-hero .lead { font-size: 17px; color: var(--color-text-muted); max-width: 720px; line-height: 1.7; }

    /* Main layout */
    .category-layout { padding: 64px 0 80px; }
    .category-layout .grid-x { align-items: stretch; }

    /* Sidebar anchor */
    .anchor-sidebar { position: sticky; top: 100px; align-self: flex-start; }
    .anchor-sidebar .anchor-head {
      display: flex; align-items: center; justify-content: space-between;
      padding: 14px 18px; background: var(--color-surface); border: 1px solid var(--color-border);
      border-radius: 12px 12px 0 0; font-size: 14px; font-weight: 600; color: var(--color-primary);
    }
    .anchor-sidebar .anchor-head i { font-size: 12px; color: var(--color-accent); }
    .anchor-list {
      background: var(--color-surface); border: 1px solid var(--color-border); border-top: none;
      border-radius: 0 0 12px 12px; padding: 8px; display: flex; flex-direction: column; gap: 2px;
    }
    .anchor-list a {
      display: flex; align-items: center; gap: 10px;
      padding: 11px 14px; border-radius: 8px; color: var(--color-text-muted);
      font-size: 14px; font-weight: 500; transition: background-color .2s ease, color .2s ease;
      text-decoration: none;
    }
    .anchor-list a i { width: 18px; text-align: center; font-size: 13px; color: var(--color-primary-deep); }
    .anchor-list a:hover { background: rgba(201,169,106,.08); color: var(--color-primary); text-decoration: none; }
    .anchor-list a.active { background: rgba(201,169,106,.14); color: var(--color-primary); }

    .sidebar-note {
      margin-top: 16px; background: var(--color-surface); border: 1px dashed rgba(201,169,106,.3);
      border-radius: 12px; padding: 18px 20px;
    }
    .sidebar-note .note-num { font-family: var(--font-num); font-size: 30px; font-weight: 700; color: var(--color-primary); line-height: 1; }
    .sidebar-note .note-label { margin-top: 8px; font-size: 13px; color: var(--color-text-muted); line-height: 1.5; }
    .sidebar-note .note-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); margin-right: 6px; animation: pulse 2s infinite; }
    @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }

    /* Content blocks */
    .cat-content-blocks { display: flex; flex-direction: column; gap: 56px; }

    .info-block { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 14px; padding: 36px; transition: border-color .3s ease, box-shadow .3s ease; scroll-margin-top: 120px; }
    .info-block:hover { border-color: rgba(201,169,106,.35); box-shadow: var(--shadow-hover); }

    .info-block h2 { margin-bottom: 20px; }

    .info-block .block-desc { color: var(--color-text-muted); font-size: 15px; margin-bottom: 24px; max-width: 640px; }

    .block-visual {
      border-radius: 12px; overflow: hidden; margin-bottom: 24px; position: relative;
      border: 1px solid rgba(255,255,255,.05); background: var(--color-surface-2);
    }
    .block-visual img { width: 100%; height: 260px; object-fit: cover; transition: transform .4s ease; }
    .block-visual:hover img { transform: scale(1.03); }
    .block-visual .visual-label {
      position: absolute; left: 14px; bottom: 14px;
      background: rgba(15,14,12,.75); backdrop-filter: blur(4px);
      color: var(--color-primary); font-size: 11px; font-weight: 600;
      padding: 6px 12px; border-radius: 6px; letter-spacing: .04em;
    }

    .feature-list { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }
    .feature-list li {
      display: flex; gap: 12px; align-items: flex-start;
      color: var(--color-text); font-size: 15px; line-height: 1.7;
    }
    .feature-list li i { color: var(--color-primary); margin-top: 5px; font-size: 13px; flex-shrink: 0; }

    blockquote {
      background: var(--color-surface-2); border-left: 3px solid var(--color-primary);
      padding: 20px 24px; border-radius: 0 10px 10px 0; margin: 24px 0;
      color: var(--color-text-muted); font-size: 15px; line-height: 1.7;
    }
    blockquote strong { color: var(--color-primary); font-weight: 600; }

    .mini-grid { margin-top: 24px; }
    .mini-card {
      background: var(--color-surface-2); border: 1px solid rgba(255,255,255,.05);
      border-radius: 10px; padding: 20px; height: 100%;
      transition: border-color .25s ease, transform .25s ease;
    }
    .mini-card:hover { border-color: rgba(201,169,106,.4); transform: translateY(-3px); }
    .mini-card .mini-icon {
      width: 38px; height: 38px; border-radius: 8px;
      display: inline-flex; align-items: center; justify-content: center;
      background: rgba(201,169,106,.12); color: var(--color-primary); font-size: 15px; margin-bottom: 14px;
    }
    .mini-card h4 { font-size: 15px; margin-bottom: 8px; }
    .mini-card p { font-size: 13px; color: var(--color-text-muted); line-height: 1.6; }

    .data-metrics {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 24px;
    }
    .data-metric {
      background: var(--color-surface-2); border: 1px solid rgba(255,255,255,.05);
      border-radius: 12px; padding: 22px 18px; text-align: center;
    }
    .data-metric .num { font-family: var(--font-num); font-size: 34px; font-weight: 700; color: var(--color-primary); line-height: 1; }
    .data-metric .num span { font-size: 20px; margin-left: 2px; }
    .data-metric .label { margin-top: 10px; font-size: 12px; color: var(--color-text-muted); letter-spacing: .03em; }

    .link-arrow { display: inline-flex; align-items: center; gap: 6px; color: var(--color-primary); font-size: 14px; font-weight: 500; margin-top: 20px; }
    .link-arrow:hover { text-decoration: none; color: var(--color-primary-hover); gap: 10px; transition: gap .25s ease; }

    /* CTA band */
    .cta-band { padding: 24px 0 72px; }
    .cta-inner {
      background: linear-gradient(120deg, #241E12 0%, #1A1713 50%, #241E12 100%);
      border-radius: 18px; padding: 56px 48px; position: relative; overflow: hidden;
      border-top: 2px solid rgba(201,169,106,.35);
      display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
    }
    .cta-inner::before, .cta-inner::after {
      content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%;
      background: radial-gradient(circle, rgba(201,169,106,.09) 0%, transparent 70%); pointer-events: none;
    }
    .cta-inner::before { top: -120px; left: -80px; }
    .cta-inner::after { bottom: -140px; right: -60px; }
    .cta-text { position: relative; z-index: 2; }
    .cta-text h2 { margin-bottom: 12px; }
    .cta-text p { color: var(--color-text-muted); font-size: 17px; }
    .cta-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; position: relative; z-index: 2; }

    /* Footer */
    .site-footer { background: var(--color-surface); border-top: 2px solid rgba(201,169,106,.12); padding: 56px 0 32px; }
    .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
    .footer-brand p { font-size: 14px; color: var(--color-text-muted); margin: 16px 0 20px; line-height: 1.7; max-width: 300px; }
    .social-icons { display: flex; gap: 10px; }
    .social-icon {
      width: 36px; height: 36px; border-radius: 50%;
      display: inline-flex; align-items: center; justify-content: center;
      border: 1px solid rgba(201,169,106,.3); color: var(--color-text-muted); font-size: 14px;
      transition: border-color .2s ease, color .2s ease, transform .2s ease;
    }
    .social-icon:hover { border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-2px); text-decoration: none; }
    .footer-col h4 { font-size: 14px; color: var(--color-primary); font-weight: 600; margin-bottom: 16px; }
    .footer-col ul { display: flex; flex-direction: column; gap: 10px; }
    .footer-col ul a { color: var(--color-text-muted); font-size: 13px; transition: color .2s ease; }
    .footer-col ul a:hover { color: var(--color-primary); }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,.06); padding-top: 24px;
      display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center;
    }
    .footer-bottom p { font-size: 12px; color: var(--color-text-muted); }
    .footer-bottom a { color: var(--color-text-muted); }
    .footer-bottom a:hover { color: var(--color-primary); }

    /* Toast */
    .toast { position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--color-surface-2); border: 1px solid rgba(201,169,106,.4); color: var(--color-text); padding: 12px 24px; border-radius: 10px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .3s ease, transform .3s ease; z-index: 99; box-shadow: 0 8px 30px rgba(0,0,0,.5); }
    .toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

    /* Responsive */
    @media screen and (max-width: 1023px) {
      .page-hero { padding: 48px 0 40px; }
      .category-layout { padding: 48px 0 64px; }
      .anchor-sidebar { position: static; margin-bottom: 40px; top: auto; }
      .anchor-list { flex-direction: row; flex-wrap: wrap; }
      .anchor-list a { flex: 1 1 30%; }
      .data-metrics { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
      .search-wrap { display: none; }
      .cta-inner { padding: 40px 32px; }
    }

    @media screen and (max-width: 767px) {
      .section { padding: 48px 0; }
      .page-hero .lead { font-size: 15px; }
      .page-hero h1 { font-size: 30px; }
      .info-block { padding: 24px 20px; }
      .block-visual img { height: 200px; }
      .data-metrics { grid-template-columns: repeat(2, 1fr); gap: 12px; }
      .data-metric .num { font-size: 26px; }
      .anchor-list a { flex: 1 1 100%; }
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
      .cta-inner { padding: 32px 24px; flex-direction: column; align-items: flex-start; }
      .cta-actions { width: 100%; }
      .cta-actions .btn { flex: 1; text-align: center; }
      .header-row { gap: 12px; }
      .header-cta { padding: 9px 16px; font-size: 13px; }
      .logo { font-size: 15px; }
      .logo-mark { width: 34px; height: 28px; font-size: 14px; }
      .lang-btn { padding: 6px 10px; font-size: 12px; }
    }

    @media screen and (max-width: 520px) {
      .container { padding-left: 18px; padding-right: 18px; }
      .data-metrics { grid-template-columns: 1fr 1fr; }
      .page-hero { padding: 40px 0 32px; }
      .category-layout { padding: 40px 0 48px; }
      .breadcrumb { font-size: 12px; }
      h2 .h2-sub { display: none; }
    }

/* roulang page: category3 */
/* ========== 设计变量 ========== */
    :root {
      --color-bg: #0F0E0C;
      --color-surface: #171613;
      --color-surface-2: #1E1D19;
      --color-primary: #C9A96A;
      --color-primary-hover: #DDBE82;
      --color-primary-deep: #A08040;
      --color-accent: #21A67A;
      --color-text: #ECE7DE;
      --color-text-muted: #9A9285;
      --color-border: rgba(201, 169, 106, 0.18);
      --color-danger: #D96C4F;
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 14px;
      --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
      --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
      --shadow-gold: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(201, 169, 106, 0.25);
      --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

    /* ========== 基础 Reset ========== */
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font-sans);
      background: var(--color-bg);
      color: var(--color-text);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
    img { max-width: 100%; display: block; }
    a {
      color: var(--color-primary);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover { color: var(--color-primary-hover); }
    h1, h2, h3, h4 { margin: 0 0 0.5em; line-height: 1.25; font-weight: 700; }
    p { margin: 0 0 1em; }
    ul { margin: 0 0 1em; padding: 0; list-style: none; }
    :focus-visible {
      outline: 2px solid var(--color-primary);
      outline-offset: 2px;
    }

    /* ========== 按钮系统 ========== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 32px;
      border-radius: var(--radius-md);
      font-family: inherit;
      font-size: 16px;
      font-weight: 600;
      line-height: 1;
      letter-spacing: 0.02em;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      position: relative;
      overflow: hidden;
    }
    .btn-primary {
      background: linear-gradient(135deg, #A08040, #DDBE82);
      color: #171310;
      box-shadow: 0 4px 16px rgba(201, 169, 106, 0.25);
    }
    .btn-primary::after {
      content: "";
      position: absolute;
      top: 0;
      left: -80%;
      width: 50%;
      height: 100%;
      background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.35), transparent);
      transform: skewX(-20deg);
      transition: left 0.6s ease;
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, #A08040, #E2C589);
      color: #171310;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(201, 169, 106, 0.35);
    }
    .btn-primary:hover::after { left: 130%; }
    .btn-outline {
      background: transparent;
      border-color: var(--color-primary);
      color: var(--color-primary);
    }
    .btn-outline:hover {
      background: rgba(201, 169, 106, 0.08);
      color: var(--color-primary-hover);
      transform: translateY(-2px);
    }
    .btn:active {
      transform: translateY(1px);
      box-shadow: none;
    }

    /* ========== 双层导航 ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(15, 14, 12, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--color-border);
      box-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
    }
    .header-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
      gap: 32px;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--color-text);
      font-size: 18px;
      font-weight: 800;
      letter-spacing: -0.01em;
      flex-shrink: 0;
    }
    .logo:hover { color: var(--color-primary-hover); }
    .logo-mark {
      width: 40px;
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #A08040, #DDBE82);
      border-radius: var(--radius-md);
      color: #171310;
      font-size: 15px;
      font-weight: 800;
      line-height: 1;
    }
    .header-right {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .search-wrap { position: relative; }
    .search-wrap input {
      width: 200px;
      background: var(--color-surface-2);
      border: 1px solid transparent;
      border-radius: var(--radius-md);
      padding: 10px 40px 10px 16px;
      color: var(--color-text);
      font-size: 14px;
      transition: all 0.25s ease;
    }
    .search-wrap input::placeholder { color: #6E675D; }
    .search-wrap input:focus {
      outline: none;
      border-color: var(--color-primary);
      box-shadow: 0 0 0 2px rgba(201, 169, 106, 0.2);
    }
    .search-icon {
      position: absolute;
      right: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: #6E675D;
      font-size: 14px;
      pointer-events: none;
    }
    .lang-btn {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.12);
      color: var(--color-text-muted);
      border-radius: var(--radius-md);
      padding: 8px 14px;
      font-size: 13px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: all 0.25s ease;
    }
    .lang-btn:hover {
      color: var(--color-primary);
      border-color: var(--color-primary);
    }
    .header-cta { padding: 10px 22px; font-size: 14px; }

    /* 频道行 */
    .channel-nav {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    .channel-tabs {
      display: flex;
      align-items: center;
      gap: 12px;
      overflow-x: auto;
      scrollbar-width: none;
      -ms-overflow-style: none;
      padding: 8px 0;
    }
    .channel-tabs::-webkit-scrollbar { display: none; }
    .channel-tabs a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      border-radius: 999px;
      color: var(--color-text-muted);
      font-size: 14px;
      font-weight: 500;
      white-space: nowrap;
      border: 1px solid transparent;
      transition: all 0.25s ease;
    }
    .channel-tabs a:hover {
      color: var(--color-primary);
      background: rgba(201, 169, 106, 0.06);
    }
    .channel-tabs a.active {
      background: linear-gradient(135deg, #A08040, #DDBE82);
      color: #171310;
      font-weight: 600;
    }
    .tab-icon { font-size: 13px; }

    /* ========== 分类页 Hero ========== */
    .category-hero {
      position: relative;
      padding: 80px 0 64px;
      background:
        linear-gradient(rgba(15, 14, 12, 0.88), rgba(15, 14, 12, 0.95)),
        url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
      border-bottom: 1px solid var(--color-border);
      overflow: hidden;
    }
    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(201, 169, 106, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201, 169, 106, 0.04) 1px, transparent 1px);
      background-size: 40px 40px;
      pointer-events: none;
    }
    .category-hero .container { position: relative; z-index: 1; }
    .breadcrumb {
      font-size: 13px;
      color: var(--color-text-muted);
      margin-bottom: 24px;
      display: flex;
      gap: 8px;
      align-items: center;
      flex-wrap: wrap;
    }
    .breadcrumb a { color: var(--color-text-muted); }
    .breadcrumb a:hover { color: var(--color-primary); }
    .breadcrumb .sep { color: rgba(255, 255, 255, 0.2); }
    .category-hero h1 {
      font-size: 40px;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 16px;
      letter-spacing: -0.01em;
    }
    .category-hero p {
      font-size: 17px;
      color: var(--color-text-muted);
      max-width: 640px;
      line-height: 1.7;
      margin: 0;
    }

    /* ========== 内容分栏布局 ========== */
    .category-layout {
      padding: 24px 0 80px;
    }
    .layout-grid {
      display: grid;
      grid-template-columns: 280px 1fr;
      gap: 48px;
      align-items: start;
    }

    /* 左侧锚点导航 */
    .anchor-nav {
      position: sticky;
      top: 140px;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .anchor-nav h2 {
      font-size: 16px;
      font-weight: 700;
      color: var(--color-primary);
      margin-bottom: 16px;
      padding-left: 12px;
      border-left: 2px solid var(--color-primary);
    }
    .anchor-nav ul {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .anchor-nav a {
      display: block;
      padding: 10px 12px;
      border-radius: var(--radius-md);
      color: var(--color-text-muted);
      font-size: 14px;
      transition: all 0.25s ease;
    }
    .anchor-nav a:hover {
      color: var(--color-primary);
      background: rgba(201, 169, 106, 0.06);
    }
    .anchor-nav a.active {
      color: var(--color-primary);
      background: rgba(201, 169, 106, 0.08);
      font-weight: 600;
    }

    /* 右侧内容区 */
    .content-area { min-width: 0; }
    .section-block {
      margin-bottom: 72px;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 36px;
      scroll-margin-top: 140px;
      transition: box-shadow 0.3s ease, border-color 0.3s ease;
    }
    .section-block:hover {
      border-color: rgba(201, 169, 106, 0.3);
      box-shadow: var(--shadow-gold);
    }
    .block-head {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 24px;
    }
    .block-index {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(201, 169, 106, 0.12);
      border: 1px solid rgba(201, 169, 106, 0.3);
      border-radius: 10px;
      color: var(--color-primary);
      font-size: 18px;
      font-weight: 700;
    }
    .block-head h2 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .block-head p {
      margin: 0;
      font-size: 14px;
      color: var(--color-text-muted);
    }
    .section-block > p {
      color: rgba(236, 231, 222, 0.85);
      font-size: 16px;
      line-height: 1.8;
    }

    /* 引用块 */
    .quote {
      border-left: 3px solid var(--color-primary);
      background: var(--color-surface-2);
      padding: 20px 24px;
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      margin: 24px 0;
      color: var(--color-text-muted);
      line-height: 1.7;
    }

    /* 技巧列表 */
    .tip-list {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin: 24px 0;
    }
    .tip-item {
      background: var(--color-surface-2);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: transform 0.25s ease, border-color 0.25s ease;
    }
    .tip-item:hover {
      transform: translateY(-3px);
      border-color: rgba(201, 169, 106, 0.35);
    }
    .tip-item i {
      color: var(--color-primary);
      font-size: 20px;
      margin-bottom: 12px;
      display: inline-block;
    }
    .tip-item h4 {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .tip-item p {
      font-size: 13px;
      color: var(--color-text-muted);
      margin: 0;
      line-height: 1.6;
    }

    /* 图片框 */
    .image-frame {
      border-radius: var(--radius-lg);
      overflow: hidden;
      margin: 24px 0 8px;
      border: 1px solid rgba(255, 255, 255, 0.06);
    }
    .image-frame img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .image-frame:hover img { transform: scale(1.03); }

    /* 术语表 */
    .term-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin: 24px 0 8px;
    }
    .term-card {
      background: var(--color-surface-2);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      display: flex;
      gap: 16px;
      align-items: flex-start;
      transition: border-color 0.25s ease;
    }
    .term-card:hover { border-color: rgba(201, 169, 106, 0.35); }
    .term-name {
      flex-shrink: 0;
      background: rgba(201, 169, 106, 0.12);
      color: var(--color-primary);
      font-size: 14px;
      font-weight: 700;
      padding: 6px 14px;
      border-radius: 999px;
      white-space: nowrap;
    }
    .term-desc {
      font-size: 14px;
      color: var(--color-text-muted);
      line-height: 1.6;
    }

    /* ========== FAQ 区块 ========== */
    .faq-section {
      padding: 80px 0;
      background: var(--color-surface);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .section-title {
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 30px;
      font-weight: 700;
      margin-bottom: 48px;
    }
    .section-title::before {
      content: "";
      width: 3px;
      height: 24px;
      background: linear-gradient(180deg, #A08040, #DDBE82);
      border-radius: 2px;
    }
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .faq-item {
      background: var(--color-bg);
      border: 1px solid var(--color-border);
      border-radius: 10px;
      overflow: hidden;
      transition: border-color 0.3s ease;
    }
    .faq-item.open { border-color: rgba(201, 169, 106, 0.35); }
    .faq-q {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 24px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text);
      user-select: none;
    }
    .faq-icon {
      width: 24px;
      height: 24px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid rgba(201, 169, 106, 0.4);
      border-radius: 50%;
      color: var(--color-primary);
      font-size: 14px;
      transition: transform 0.35s ease;
      flex-shrink: 0;
    }
    .faq-item.open .faq-icon { transform: rotate(45deg); }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
    }
    .faq-item.open .faq-a { max-height: 300px; }
    .faq-a-inner {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--color-text-muted);
      line-height: 1.7;
    }

    /* ========== CTA 横幅 ========== */
    .cta-section {
      padding: 80px 0;
    }
    .cta-banner {
      position: relative;
      background: linear-gradient(120deg, #241E12 0%, #1A1713 50%, #241E12 100%);
      border-top: 1px solid rgba(201, 169, 106, 0.4);
      border-radius: 18px;
      padding: 56px 48px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 40px;
      overflow: hidden;
    }
    .cta-banner::before,
    .cta-banner::after {
      content: "";
      position: absolute;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: rgba(201, 169, 106, 0.06);
      filter: blur(40px);
      pointer-events: none;
    }
    .cta-banner::before { top: -60px; left: -40px; }
    .cta-banner::after {
      bottom: -60px;
      right: -30px;
      background: rgba(33, 166, 122, 0.05);
    }
    .cta-text { position: relative; z-index: 1; }
    .cta-text h2 {
      font-size: 30px;
      font-weight: 800;
      color: var(--color-text);
      margin-bottom: 10px;
    }
    .cta-text p {
      font-size: 16px;
      color: var(--color-text-muted);
      margin: 0;
    }
    .cta-actions {
      display: flex;
      gap: 16px;
      flex-shrink: 0;
      position: relative;
      z-index: 1;
    }

    /* ========== 页脚 ========== */
    .site-footer {
      background: var(--color-surface);
      border-top: 1px solid var(--color-border);
      padding: 64px 0 24px;
    }
    .footer-grid {
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      margin-bottom: 24px;
    }
    .footer-brand p {
      color: var(--color-text-muted);
      font-size: 14px;
      line-height: 1.7;
      margin-top: 16px;
      max-width: 380px;
    }
    .social-icons {
      display: flex;
      gap: 12px;
      margin-top: 20px;
    }
    .social-icon {
      width: 36px;
      height: 36px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--color-text-muted);
      font-size: 14px;
      transition: all 0.3s ease;
    }
    .social-icon:hover {
      color: var(--color-primary);
      border-color: var(--color-primary);
      transform: translateY(-2px);
    }
    .footer-col h4 {
      color: var(--color-primary);
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col a {
      color: var(--color-text-muted);
      font-size: 13px;
    }
    .footer-col a:hover { color: var(--color-primary); }
    .footer-bottom {
      padding-top: 8px;
      text-align: center;
    }
    .footer-bottom p {
      font-size: 12px;
      color: var(--color-text-muted);
      margin: 0 0 6px;
    }
    .footer-bottom a { color: var(--color-text-muted); }
    .footer-bottom a:hover { color: var(--color-primary); }

    /* ========== 响应式 ========== */
    @media (max-width: 1023px) {
      .layout-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .anchor-nav {
        position: static;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 12px;
        padding: 16px 20px;
      }
      .anchor-nav h2 {
        margin-bottom: 0;
        margin-right: 8px;
      }
      .anchor-nav ul {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
      }
      .anchor-nav a { padding: 6px 12px; }
      .tip-list { grid-template-columns: 1fr 1fr; }
      .cta-banner {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 767px) {
      .container { padding: 0 20px; }
      .search-wrap { display: none; }
      .lang-btn { display: none; }
      .header-row { height: 58px; gap: 16px; }
      .logo { font-size: 15px; }
      .logo-mark { width: 34px; height: 34px; font-size: 13px; }
      .header-cta { padding: 8px 16px; font-size: 13px; }
      .category-hero { padding: 56px 0 40px; }
      .category-hero h1 { font-size: 28px; }
      .category-hero p { font-size: 15px; }
      .category-layout { padding: 8px 0 56px; }
      .section-block { padding: 24px; margin-bottom: 48px; }
      .block-head h2 { font-size: 20px; }
      .tip-list { grid-template-columns: 1fr; }
      .term-grid { grid-template-columns: 1fr; }
      .faq-section { padding: 56px 0; }
      .section-title { font-size: 22px; margin-bottom: 32px; }
      .faq-grid { grid-template-columns: 1fr; }
      .cta-section { padding: 56px 0; }
      .cta-banner { padding: 36px 24px; }
      .cta-text h2 { font-size: 24px; }
      .cta-actions {
        flex-direction: column;
        width: 100%;
      }
      .cta-actions .btn { width: 100%; }
      .site-footer { padding: 48px 0 24px; }
      .footer-grid > .cell { margin-bottom: 8px; }
      .footer-bottom p { font-size: 11px; }
    }

    @media (max-width: 520px) {
      .header-right { gap: 10px; }
      .logo span:not(.logo-mark) { display: none; }
      .channel-tabs a { padding: 8px 14px; font-size: 13px; }
      .image-frame img { height: 180px; }
    }