/* roulang page: index */
:root {
  --bg-base: #0B1120;
  --bg-secondary: #111A2E;
  --bg-deep: #070B14;
  --brand-500: #2E7CF6;
  --brand-300: #38BDF8;
  --accent-gold: #F5B04C;
  --accent-gold-light: #FFD28A;
  --success: #34D399;
  --danger: #F87171;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --glass-bg: rgba(255,255,255,0.045);
  --glass-border: rgba(255,255,255,0.09);
  --glass-highlight: inset 0 1px 0 rgba(255,255,255,0.06);
  --shadow-card: 0 8px 24px rgba(0,0,0,0.24);
  --shadow-card-hover: 0 12px 36px rgba(0,0,0,0.36);
  --glow-blue: 0 0 0 4px rgba(56,189,248,0.15), 0 8px 32px rgba(56,189,248,0.35);
  --glow-gold: 0 0 0 4px rgba(245,176,76,0.15), 0 8px 32px rgba(245,176,76,0.35);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --navbar-height: 72px;
  --section-space: 96px;
  --container-width: 1200px;
  --gradient-blue: linear-gradient(135deg, #2E7CF6, #38BDF8);
  --gradient-gold: linear-gradient(135deg, #F5B04C, #FFD28A);
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--brand-300);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #ffffff;
}

button, input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  color: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid rgba(56,189,248,0.6);
  outline-offset: 2px;
}

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

.section {
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
}

.section-head {
  margin-bottom: 44px;
}

.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--brand-300);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-head .eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--gradient-blue);
  border-radius: 2px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.section-head p {
  color: var(--text-secondary);
  margin-top: 12px;
  max-width: 560px;
}

/* header & nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  background: rgba(11,17,32,0.82);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: 100;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(11,17,32,0.95);
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
}

.navbar {
  max-width: var(--container-width);
  margin: 0 auto;
  height: var(--navbar-height);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}

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

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--gradient-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 14px rgba(46,124,246,0.35);
}

.brand-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: 12px;
  flex: 1;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 12px 2px;
  position: relative;
  transition: color 0.2s ease;
  white-space: nowrap;
}

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

.nav-links a.active {
  color: var(--brand-300);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--gradient-blue);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  flex-shrink: 0;
}

.search-box {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  height: 40px;
  padding: 0 12px;
  width: 200px;
  transition: width 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.search-box:focus-within {
  width: 240px;
  border-color: var(--brand-300);
  box-shadow: 0 0 0 3px rgba(56,189,248,0.2);
}

.search-box svg {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.search-box input {
  width: 100%;
  height: 100%;
  padding-left: 8px;
  background: transparent;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  line-height: 1.2;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-blue);
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: var(--glow-blue);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(2px);
}

.btn-outline {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--brand-300);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(56,189,248,0.5);
  color: var(--brand-300);
}

.btn-gold {
  background: var(--gradient-gold);
  color: #0B1120;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.3);
}

.btn-gold:hover {
  box-shadow: var(--glow-gold);
  filter: brightness(1.05);
  color: #0B1120;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
  border-radius: 8px;
}

.btn-link {
  padding: 8px 0;
  color: var(--brand-300);
  font-size: 15px;
}

.nav-text-btn {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 12px;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-text-btn:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}

.nav-gold-btn {
  background: var(--gradient-gold);
  color: #0B1120;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  box-shadow: 0 4px 16px rgba(245,176,76,0.3);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.nav-gold-btn:hover {
  box-shadow: var(--glow-gold);
  transform: translateY(-1px);
  color: #0B1120;
}

.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

/* hero */
.hero {
  position: relative;
  min-height: 720px;
  padding-top: calc(var(--navbar-height) + 48px);
  padding-bottom: 88px;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(11,17,32,0.92) 30%, rgba(11,17,32,0.68) 70%, rgba(11,17,32,0.45));
  z-index: 1;
}

.hero::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(46,124,246,0.28) 0%, transparent 70%);
  z-index: 1;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 58% 42%;
  gap: 48px;
  align-items: center;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.hero-content .tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(46,124,246,0.14);
  border: 1px solid rgba(56,189,248,0.24);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--brand-300);
  margin-bottom: 24px;
}

.hero-content h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-content h1 .gradient {
  background: linear-gradient(135deg, #2E7CF6, #38BDF8);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-content .subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 420px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.hero-metrics {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
}

.metric-item {
  border-left: 1px solid rgba(255,255,255,0.1);
  padding-left: 18px;
}

.metric-item .metric-value {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.metric-item .metric-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* hero glass panel */
.hero-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  backdrop-filter: blur(18px) saturate(140%);
  box-shadow: var(--shadow-card);
  padding: 28px;
  position: relative;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  background: var(--glass-highlight);
  pointer-events: none;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 0 rgba(52,211,153,0.6);
  animation: pulse-live 2s infinite;
}

@keyframes pulse-live {
  0% { box-shadow: 0 0 0 0 rgba(52,211,153,0.5); }
  70% { box-shadow: 0 0 0 8px rgba(52,211,153,0); }
  100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); }
}

.panel-header span {
  font-size: 13px;
  font-weight: 600;
  color: var(--success);
  letter-spacing: 0.02em;
}

.panel-header .panel-updated {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-muted);
}

.panel-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.panel-item:last-child {
  border-bottom: none;
}

.panel-thumb {
  width: 76px;
  height: 56px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--bg-secondary);
}

.panel-item .panel-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.panel-item .panel-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.panel-footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
}

.panel-footer a {
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-300);
}

/* stats strip */
.stats-strip {
  background: var(--bg-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 48px 0;
}

.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.stat-card .stat-icon {
  width: 42px;
  height: 42px;
  margin: 0 auto 14px;
  border-radius: 12px;
  background: rgba(46,124,246,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-300);
}

.stat-card h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.stat-card p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* news list */
.news-section {
  background: var(--bg-base);
}

.news-card-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-row {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  gap: 18px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.news-row:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(56,189,248,0.24);
}

.news-thumb {
  width: 120px;
  height: 84px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--bg-secondary);
}

.news-body {
  flex: 1;
  min-width: 0;
}

.news-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-gold);
  background: rgba(245,176,76,0.1);
  border: 1px solid rgba(245,176,76,0.22);
  border-radius: 999px;
  padding: 2px 10px;
  margin-bottom: 6px;
}

.news-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.45;
  margin-bottom: 6px;
  transition: color 0.2s ease;
}

.news-title:hover {
  color: var(--brand-300);
}

.news-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
}

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

.news-meta a {
  color: var(--brand-300);
  font-weight: 500;
}

.empty-state {
  border: 1px dashed rgba(255,255,255,0.22);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  background: rgba(255,255,255,0.02);
  color: var(--text-muted);
  font-size: 15px;
}

/* comparison */
.compare-section {
  background: var(--bg-secondary);
}

.compare-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  margin: 0 auto;
  max-width: 900px;
  position: relative;
}

.compare-head {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  align-items: center;
}

.compare-head .col-label {
  font-size: 14px;
  color: var(--text-muted);
}

.compare-head .col-value {
  font-size: 18px;
  font-weight: 700;
  text-align: center;
}

.compare-head .col-value.free {
  color: var(--text-secondary);
}

.compare-head .col-value.member {
  color: var(--accent-gold);
  position: relative;
  display: inline-block;
}

.member-badge {
  position: absolute;
  top: -12px;
  right: -8px;
  background: var(--gradient-gold);
  color: #0B1120;
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  padding: 2px 10px;
  box-shadow: 0 4px 12px rgba(245,176,76,0.35);
}

.pv-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 16px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.pv-row:last-child {
  border-bottom: none;
}

.pv-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text-primary);
}

.pv-name svg {
  flex-shrink: 0;
}

.pv-status {
  display: flex;
  justify-content: center;
}

.member-col-status {
  background: rgba(245,176,76,0.06);
  border-left: 1px solid rgba(245,176,76,0.3);
  border-right: 1px solid rgba(245,176,76,0.3);
  display: flex;
  justify-content: center;
  align-items: center;
}

.pv-icon-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-gold);
  color: #0B1120;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pv-icon-cross {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(148,163,184,0.2);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.compare-foot {
  margin-top: 24px;
  text-align: center;
}

/* membership tiers */
.tiers-section {
  background: var(--bg-base);
}

.tiers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: end;
}

.tier-card {
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 28px 24px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  height: 280px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tier-card:hover {
  transform: translateY(-4px);
}

.tier-card.tier-silver {
  height: 280px;
  border-top: 3px solid #C0C8D0;
}

.tier-card.tier-gold {
  height: 316px;
  border-top: 3px solid #F5B04C;
}

.tier-card.tier-platinum {
  height: 340px;
  border-top: 3px solid #B9C9E6;
}

.tier-card.tier-black {
  height: 376px;
  border: 2px solid transparent;
  background:
    linear-gradient(rgba(11,17,32,0.92), rgba(11,17,32,0.92)) padding-box,
    linear-gradient(135deg, #8C6B1E, #D4AF37, #F5B04C) border-box;
  box-shadow: 0 0 40px rgba(212,175,55,0.2);
}

.tier-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-gold);
  color: #0B1120;
  font-size: 12px;
  font-weight: 700;
  border-radius: 999px;
  padding: 4px 14px;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(245,176,76,0.4);
}

.tier-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tier-name .tier-icon {
  width: 24px;
  height: 24px;
}

.tier-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.tier-features {
  list-style: none;
  margin-bottom: 20px;
  flex: 1;
}

.tier-features li {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 4px 0;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.tier-features li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--brand-300);
  margin-top: 9px;
  flex-shrink: 0;
}

.tier-features li.gold-li::before {
  background: var(--accent-gold);
}

.tier-price {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.tier-card .btn {
  width: 100%;
}

/* exclusive content */
.exclusive-section {
  background: var(--bg-secondary);
}

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

.exclusive-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.exclusive-thumb-wrap {
  position: relative;
  height: 190px;
  overflow: hidden;
}

.exclusive-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(4px);
  transform: scale(1.05);
  transition: transform 0.35s ease, filter 0.35s ease;
}

.exclusive-card:hover .exclusive-thumb {
  filter: blur(0);
  transform: scale(1.05);
}

.exclusive-overlay {
  position: absolute;
  inset: 0;
  background: rgba(11,17,32,0.45);
  transition: opacity 0.3s ease;
}

.exclusive-card:hover .exclusive-overlay {
  opacity: 0;
}

.exclusive-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--gradient-gold);
  color: #0B1120;
  font-size: 12px;
  font-weight: 700;
  border-radius: 999px;
  padding: 4px 12px;
}

.lock-icon {
  position: absolute;
  bottom: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(11,17,32,0.7);
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.exclusive-body {
  padding: 20px;
}

.exclusive-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.exclusive-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.25s ease;
}

.faq-item[open] {
  border-color: rgba(56,189,248,0.28);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  padding: 18px 20px;
  background: transparent;
  gap: 16px;
}

.faq-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px dashed rgba(255,255,255,0.32);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 20px;
  transition: transform 0.35s ease, border-color 0.35s ease, color 0.35s ease;
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.faq-answer {
  padding: 0 20px 18px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* cta banner */
.cta-banner {
  background: var(--bg-base);
  padding-bottom: 96px;
}

.cta-card {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid rgba(245,176,76,0.3);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  overflow: hidden;
}

.cta-card::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -40px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(245,176,76,0.18), transparent 70%);
  pointer-events: none;
}

.cta-card .cta-left h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 10px;
}

.cta-card .cta-left p {
  color: var(--text-secondary);
  font-size: 16px;
}

.cta-card .cta-action {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}

/* footer */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0;
}

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

.footer-brand .brand-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.footer-col ul a:hover {
  color: var(--brand-300);
}

.app-badge-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.app-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 10px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.app-badge:hover {
  border-color: var(--brand-300);
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* mobile nav drawer */
.mobile-drawer {
  display: none;
}

/* responsive */
@media (max-width: 1199px) {
  .nav-links {
    gap: 20px;
  }
  .search-box {
    width: 160px;
  }
  .search-box:focus-within {
    width: 200px;
  }
  .hero-content h1 {
    font-size: 40px;
  }
  .tiers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .tier-card.tier-silver,
  .tier-card.tier-gold,
  .tier-card.tier-platinum,
  .tier-card.tier-black {
    height: auto;
    min-height: 300px;
  }
  .tier-popular {
    position: static;
    transform: none;
    display: table;
    margin-bottom: 10px;
  }
}

@media (max-width: 991px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-panel {
    max-width: 560px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .exclusive-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  :root {
    --section-space: 56px;
  }

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

  .navbar {
    gap: 12px;
    padding: 0 16px;
  }

  .nav-links {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .search-box {
    display: none;
  }

  .nav-text-btn {
    display: none;
  }

  .nav-gold-btn {
    padding: 8px 14px;
    font-size: 13px;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--navbar-height) + 32px);
    padding-bottom: 48px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-metrics {
    gap: 20px;
  }

  .metric-item {
    padding-left: 12px;
  }

  .metric-item .metric-value {
    font-size: 20px;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .stats-grid {
    padding: 32px 0;
    gap: 16px;
  }

  .stat-card {
    padding: 20px 16px;
  }

  .news-row {
    flex-direction: column;
  }

  .news-thumb {
    width: 100%;
    height: 160px;
  }

  .compare-head {
    display: none;
  }

  .compare-card {
    padding: 20px;
  }

  .pv-row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 16px 0;
  }

  .pv-status {
    justify-content: flex-start;
  }

  .member-col-status {
    background: rgba(245,176,76,0.06);
    border-left: none;
    border-right: none;
    justify-content: flex-start;
    padding: 4px 8px;
    border-radius: 6px;
  }

  .compare-foot .btn {
    width: 100%;
  }

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

  .tier-card.tier-silver,
  .tier-card.tier-gold,
  .tier-card.tier-platinum,
  .tier-card.tier-black {
    height: auto;
    min-height: 0;
  }

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

  .cta-card {
    flex-direction: column;
    text-align: center;
    padding: 40px 24px;
  }

  .cta-card .cta-action {
    width: 100%;
  }

  .cta-card .cta-action .btn {
    width: 100%;
  }

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

  .app-badge-group {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (min-width: 768px) and (max-width: 991px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-content {
    max-width: 640px;
  }
  .hero-panel {
    max-width: 640px;
  }
}

@media (min-width: 1200px) {
  .hero-grid {
    grid-template-columns: 58% 42%;
  }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
    :root {
      --bg-base: #0B1120;
      --bg-secondary: #111A2E;
      --bg-deep: #070B14;
      --brand-500: #2E7CF6;
      --brand-300: #38BDF8;
      --accent-gold: #F5B04C;
      --accent-gold-light: #FFD28A;
      --success: #34D399;
      --danger: #F87171;
      --text-primary: #F1F5F9;
      --text-secondary: #94A3B8;
      --text-muted: #64748B;
      --glass-bg: rgba(255, 255, 255, 0.045);
      --glass-border: rgba(255, 255, 255, 0.09);
      --glass-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.06);
      --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.24);
      --shadow-card-hover: 0 12px 36px rgba(0, 0, 0, 0.36);
      --glow-blue: 0 0 0 4px rgba(56, 189, 248, 0.15), 0 8px 32px rgba(56, 189, 248, 0.35);
      --glow-gold: 0 0 0 4px rgba(245, 176, 76, 0.15), 0 8px 32px rgba(245, 176, 76, 0.35);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --container: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--bg-base);
      color: var(--text-primary);
      font-size: 16px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--brand-300);
      text-decoration: none;
      transition: color 0.2s ease;
    }

    a:hover {
      color: #ffffff;
    }

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

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

    button {
      cursor: pointer;
    }

    ul {
      list-style: none;
    }

    :focus-visible {
      outline: 2px solid rgba(56, 189, 248, 0.6);
      outline-offset: 2px;
    }

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

    /* ========== 导航 ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(11, 17, 32, 0.82);
      -webkit-backdrop-filter: blur(20px) saturate(140%);
      backdrop-filter: blur(20px) saturate(140%);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      transition: background 0.3s ease;
    }

    .site-header.scrolled {
      background: rgba(11, 17, 32, 0.95);
    }

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

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-primary);
      font-weight: 700;
      font-size: 17px;
      white-space: nowrap;
      flex-shrink: 0;
    }

    .brand:hover {
      color: var(--text-primary);
    }

    .brand-icon {
      width: 30px;
      height: 30px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--brand-500), var(--brand-300));
      color: #fff;
      box-shadow: 0 0 16px rgba(56, 189, 248, 0.35);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .nav-links a {
      color: var(--text-secondary);
      font-size: 15px;
      font-weight: 500;
      position: relative;
      padding: 8px 0;
      white-space: nowrap;
    }

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

    .nav-links a.active {
      color: var(--text-primary);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -2px;
      height: 2px;
      background: linear-gradient(90deg, var(--brand-500), var(--brand-300));
      border-radius: 2px;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-shrink: 0;
    }

    .search-box {
      display: flex;
      align-items: center;
      gap: 8px;
      width: 200px;
      height: 38px;
      padding: 0 12px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-sm);
      transition: width 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    }

    .search-box svg {
      width: 16px;
      height: 16px;
      color: var(--text-muted);
      flex-shrink: 0;
    }

    .search-box:focus-within {
      width: 240px;
      border-color: rgba(56, 189, 248, 0.6);
      box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
    }

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

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

    .nav-text-btn {
      color: var(--text-secondary);
      font-size: 14px;
      font-weight: 500;
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      transition: color 0.2s ease, background 0.2s ease;
    }

    .nav-text-btn:hover {
      color: var(--text-primary);
      background: rgba(255, 255, 255, 0.06);
    }

    .nav-gold-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
      color: #0B1120;
      font-weight: 700;
      font-size: 14px;
      padding: 9px 18px;
      border-radius: 10px;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
      transition: box-shadow 0.25s ease, transform 0.2s ease;
    }

    .nav-gold-btn:hover {
      box-shadow: var(--glow-gold);
      transform: translateY(-1px);
      color: #0B1120;
    }

    .nav-gold-btn:active {
      transform: translateY(1px);
    }

    .mobile-toggle {
      display: none;
      width: 36px;
      height: 36px;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      color: var(--text-secondary);
      border: 1px solid rgba(255, 255, 255, 0.12);
      transition: background 0.2s ease, color 0.2s ease;
    }

    .mobile-toggle:hover {
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-primary);
    }

    /* ========== Hero ========== */
    .category-hero {
      position: relative;
      padding: 110px 0 90px;
      background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
    }

    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(11, 17, 32, 0.88) 30%, rgba(11, 17, 32, 0.68) 70%, rgba(11, 17, 32, 0.5) 100%);
      z-index: 0;
    }

    .category-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(ellipse at 25% 40%, rgba(46, 124, 246, 0.18) 0%, transparent 55%),
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
      background-size: 100% 100%, 32px 32px, 32px 32px;
      z-index: 0;
    }

    .category-hero .container {
      position: relative;
      z-index: 1;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 28px;
    }

    .breadcrumb a {
      color: var(--text-secondary);
    }

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

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

    .breadcrumb .current {
      color: var(--brand-300);
    }

    .category-hero h1 {
      font-size: 46px;
      line-height: 1.18;
      font-weight: 800;
      letter-spacing: -0.02em;
      max-width: 680px;
      margin-bottom: 24px;
    }

    .category-hero h1 .grad-text {
      background: linear-gradient(135deg, var(--brand-500), var(--brand-300));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .hero-subtitle {
      font-size: 18px;
      line-height: 1.7;
      color: var(--text-secondary);
      max-width: 540px;
      margin-bottom: 32px;
    }

    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 8px 18px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      color: var(--text-primary);
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 0.02em;
    }

    .hero-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--brand-300);
      margin-right: 8px;
      box-shadow: 0 0 8px rgba(56, 189, 248, 0.7);
    }

    /* ========== 内容卡片网格 ========== */
    .section {
      padding: 96px 0;
    }

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

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

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

    .section-kicker {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      border-radius: 999px;
      background: rgba(46, 124, 246, 0.12);
      border: 1px solid rgba(46, 124, 246, 0.25);
      color: var(--brand-300);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.02em;
      margin-bottom: 16px;
    }

    .section-head h2 {
      font-size: 32px;
      line-height: 1.25;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 14px;
    }

    .section-head p {
      font-size: 16px;
      line-height: 1.7;
      color: var(--text-secondary);
    }

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

    .content-card {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
      display: flex;
      flex-direction: column;
    }

    .content-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
      border-color: rgba(56, 189, 248, 0.25);
    }

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

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

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

    .card-badge {
      position: absolute;
      top: 12px;
      left: 12px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
      color: #0B1120;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 999px;
      letter-spacing: 0.02em;
    }

    .card-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .card-body h3 {
      font-size: 18px;
      line-height: 1.4;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 10px;
      transition: color 0.2s ease;
    }

    .content-card:hover .card-body h3 {
      color: var(--brand-300);
    }

    .card-body p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-secondary);
      margin-bottom: 16px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .card-meta {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-muted);
      padding-top: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }

    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      color: var(--brand-300);
      font-weight: 500;
      transition: gap 0.2s ease;
    }

    .card-link:hover {
      color: #fff;
      gap: 7px;
    }

    /* ========== 四步流程 ========== */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .step-card {
      background: var(--bg-base);
      border: 1px solid rgba(255, 255, 255, 0.07);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      position: relative;
      transition: border-color 0.25s ease, transform 0.25s ease;
    }

    .step-card:hover {
      border-color: rgba(56, 189, 248, 0.3);
      transform: translateY(-3px);
    }

    .step-num {
      width: 42px;
      height: 42px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(46, 124, 246, 0.15), rgba(56, 189, 248, 0.15));
      border: 1px solid rgba(56, 189, 248, 0.2);
      color: var(--brand-300);
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .step-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 10px;
    }

    .step-card p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-secondary);
    }

    /* ========== 适用场景 ========== */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scene-card {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
    }

    .scene-card:hover {
      transform: translateY(-4px);
      border-color: rgba(245, 176, 76, 0.3);
      box-shadow: var(--shadow-card-hover);
    }

    .scene-icon {
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      background: rgba(245, 176, 76, 0.1);
      border: 1px solid rgba(245, 176, 76, 0.2);
      margin-bottom: 20px;
    }

    .scene-icon svg {
      width: 24px;
      height: 24px;
      color: var(--accent-gold);
    }

    .scene-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 10px;
    }

    .scene-card p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-secondary);
    }

    /* ========== 标签云 + 站内推荐 ========== */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      max-width: 760px;
      margin: 0 auto 72px;
    }

    .tag-pill {
      display: inline-flex;
      align-items: center;
      padding: 9px 20px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: var(--text-secondary);
      font-size: 14px;
      font-weight: 500;
      transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
    }

    .tag-pill:hover {
      background: rgba(56, 189, 248, 0.1);
      border-color: rgba(56, 189, 248, 0.3);
      color: var(--brand-300);
      transform: translateY(-2px);
    }

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

    .rec-card {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      min-height: 190px;
      background-size: cover;
      background-position: center;
      display: flex;
      align-items: flex-end;
      padding: 28px;
      isolation: isolate;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

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

    .rec-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(11, 17, 32, 0.92) 10%, rgba(11, 17, 32, 0.45) 60%, rgba(11, 17, 32, 0.2) 100%);
      z-index: -1;
    }

    .rec-content h3 {
      font-size: 22px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }

    .rec-content p {
      font-size: 15px;
      color: rgba(241, 245, 249, 0.85);
      margin-bottom: 14px;
      line-height: 1.6;
    }

    .rec-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--accent-gold-light);
      font-weight: 600;
      font-size: 14px;
    }

    .rec-link:hover {
      color: #fff;
    }

    /* ========== FAQ ========== */
    .faq-list {
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: 12px;
      overflow: hidden;
      transition: border-color 0.25s ease;
    }

    .faq-item:hover {
      border-color: rgba(56, 189, 248, 0.2);
    }

    .faq-trigger {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 24px;
      text-align: left;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-primary);
      transition: background 0.2s ease;
    }

    .faq-trigger:hover {
      background: rgba(255, 255, 255, 0.02);
    }

    .faq-icon {
      width: 34px;
      height: 34px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      border: 1px dashed rgba(255, 255, 255, 0.3);
      color: var(--text-secondary);
      font-size: 20px;
      font-weight: 400;
      transition: transform 0.3s ease, border-color 0.3s ease, color 0.3s ease;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      border-color: var(--accent-gold);
      color: var(--accent-gold);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
    }

    .faq-answer-inner {
      padding: 0 24px 22px;
      font-size: 15px;
      line-height: 1.7;
      color: var(--text-secondary);
    }

    /* ========== CTA横幅 ========== */
    .cta-banner {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      padding: 64px 56px;
      background: linear-gradient(135deg, rgba(46, 124, 246, 0.18), rgba(56, 189, 248, 0.08));
      border: 1px solid var(--glass-border);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
      isolation: isolate;
    }

    .cta-banner::before {
      content: "";
      position: absolute;
      top: -40%;
      right: -10%;
      width: 420px;
      height: 420px;
      background: radial-gradient(circle, rgba(245, 176, 76, 0.2) 0%, transparent 65%);
      z-index: -1;
    }

    .cta-banner h2 {
      font-size: 30px;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .cta-banner p {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 480px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 30px;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 700;
      white-space: nowrap;
      transition: box-shadow 0.25s ease, transform 0.2s ease, background 0.25s ease;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--brand-500), var(--brand-300));
      color: #fff;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
    }

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

    .btn-primary:active {
      transform: translateY(1px);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.16);
      color: var(--text-primary);
      font-weight: 600;
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(255, 255, 255, 0.3);
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-gold {
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
      color: #0B1120;
      font-weight: 700;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
    }

    .btn-gold:hover {
      box-shadow: var(--glow-gold);
      transform: translateY(-2px);
      color: #0B1120;
    }

    /* ========== 页脚 ========== */
    .site-footer {
      background: var(--bg-deep);
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 72px 0 32px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 48px;
    }

    .footer-brand .brand-text {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 260px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 18px;
    }

    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col ul a {
      font-size: 14px;
      color: var(--text-muted);
      transition: color 0.2s ease;
    }

    .footer-col ul a:hover {
      color: var(--brand-300);
    }

    .app-badge-group {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .app-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 16px;
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: var(--text-secondary);
      font-size: 14px;
      font-weight: 500;
      transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    }

    .app-badge:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(56, 189, 248, 0.3);
      color: var(--text-primary);
    }

    .app-badge svg {
      color: var(--brand-300);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 28px;
      text-align: center;
      font-size: 13px;
      color: var(--text-muted);
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1199px) {
      .nav-links {
        gap: 20px;
      }

      .search-box {
        width: 170px;
      }

      .search-box:focus-within {
        width: 200px;
      }
    }

    @media (max-width: 991px) {
      .search-box {
        display: none;
      }

      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }

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

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

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

    @media (max-width: 767px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        background: #0B1120;
        padding: 20px 24px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
      }

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

      .nav-links a {
        width: 100%;
        padding: 12px 0;
        font-size: 16px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      }

      .nav-links a.active::after {
        display: none;
      }

      .nav-links a.active {
        color: var(--brand-300);
      }

      .nav-text-btn {
        display: none;
      }

      .nav-gold-btn {
        display: none;
      }

      .mobile-toggle {
        display: flex;
      }

      .navbar {
        height: 64px;
      }

      .category-hero {
        padding: 72px 0 56px;
      }

      .category-hero h1 {
        font-size: 30px;
        line-height: 1.25;
      }

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

      .section {
        padding: 56px 0;
      }

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

      .grid-3 {
        grid-template-columns: 1fr;
      }

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

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

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

      .cta-banner {
        flex-direction: column;
        padding: 40px 24px;
        text-align: center;
      }

      .cta-banner .btn {
        width: 100%;
        max-width: 320px;
      }

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

      .footer-brand p {
        max-width: 100%;
      }
    }

    @media (max-width: 520px) {
      .brand-text {
        font-size: 15px;
      }

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

      .category-hero h1 {
        font-size: 26px;
      }

      .hero-badges {
        gap: 8px;
      }

      .hero-badge {
        padding: 6px 14px;
        font-size: 12px;
      }

      .section-head h2 {
        font-size: 23px;
      }

      .card-body {
        padding: 16px;
      }
    }

/* roulang page: article */
:root {
  --bg-base: #0B1120;
  --bg-secondary: #111A2E;
  --bg-deep: #070B14;
  --brand-500: #2E7CF6;
  --brand-300: #38BDF8;
  --accent-gold: #F5B04C;
  --accent-gold-light: #FFD28A;
  --success: #34D399;
  --danger: #F87171;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --glass-bg: rgba(255,255,255,0.045);
  --glass-border: rgba(255,255,255,0.09);
  --glass-highlight: inset 0 1px 0 rgba(255,255,255,0.06);
  --shadow-card: 0 8px 24px rgba(0,0,0,0.24);
  --shadow-card-hover: 0 12px 36px rgba(0,0,0,0.36);
  --glow-blue: 0 0 0 4px rgba(56,189,248,0.15), 0 8px 32px rgba(56,189,248,0.35);
  --glow-gold: 0 0 0 4px rgba(245,176,76,0.15), 0 8px 32px rgba(245,176,76,0.35);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --container: 1200px;
  --section-pad: 96px;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background:
    radial-gradient(ellipse at top right, rgba(46,124,246,0.08), transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(245,176,76,0.04), transparent 45%),
    var(--bg-base);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--brand-300);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: #ffffff;
}
button, input {
  font-family: inherit;
  font-size: inherit;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11,17,32,0.82);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s;
}
.site-header.scrolled {
  background: rgba(11,17,32,0.95);
}
.navbar {
  max-width: var(--container);
  margin: 0 auto;
  height: 72px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 18px;
  white-space: nowrap;
  flex-shrink: 0;
}
.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-300));
  color: #fff;
  flex-shrink: 0;
}
.brand-text {
  font-weight: 700;
  letter-spacing: 0.01em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding-bottom: 6px;
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--text-primary);
}
.nav-links a.active {
  color: var(--brand-300);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-500), var(--brand-300));
  border-radius: 2px;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  height: 40px;
  width: 200px;
  transition: all 0.3s;
}
.search-box:focus-within {
  width: 240px;
  border-color: var(--brand-300);
  box-shadow: 0 0 0 3px rgba(56,189,248,0.15);
}
.search-box svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  stroke: var(--text-muted);
}
.search-box input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 14px;
  width: 100%;
}
.search-box input::placeholder {
  color: var(--text-muted);
}
.nav-text-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.2s;
}
.nav-text-btn:hover {
  color: var(--text-primary);
}
.nav-gold-btn {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
  color: #0B1120;
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  transition: box-shadow 0.2s, transform 0.2s;
  white-space: nowrap;
}
.nav-gold-btn:hover {
  box-shadow: var(--glow-gold);
  transform: translateY(-1px);
  color: #0B1120;
}
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.mobile-toggle:hover {
  background: rgba(255,255,255,0.06);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 28px 0 8px;
  font-size: 14px;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--text-muted);
  transition: color 0.2s;
}
.breadcrumb a:hover {
  color: var(--brand-300);
}
.breadcrumb .sep {
  color: var(--text-muted);
  opacity: 0.6;
}
.breadcrumb .current {
  color: var(--text-secondary);
  max-width: 340px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-main {
  padding: 24px 0 96px;
}
.article-card {
  max-width: 860px;
  margin: 0 auto;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  backdrop-filter: blur(18px) saturate(140%);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.article-head {
  padding: 48px 56px 32px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.article-cat {
  display: inline-block;
  background: linear-gradient(135deg, rgba(245,176,76,0.2), rgba(255,210,138,0.1));
  border: 1px solid rgba(245,176,76,0.35);
  color: var(--accent-gold-light);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.article-head h1 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 20px;
  color: var(--text-muted);
  font-size: 14px;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta svg {
  width: 15px;
  height: 15px;
  stroke: var(--text-muted);
}

.article-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 56px 48px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-primary);
}
.article-body p {
  margin-bottom: 24px;
  word-break: break-word;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.4;
  margin: 40px 0 18px;
  color: var(--text-primary);
  position: relative;
  padding-left: 16px;
}
.article-body h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--brand-500), var(--brand-300));
}
.article-body h3 {
  font-size: 21px;
  font-weight: 600;
  line-height: 1.4;
  margin: 32px 0 16px;
  color: var(--text-primary);
}
.article-body ul,
.article-body ol {
  margin-bottom: 24px;
  padding-left: 24px;
}
.article-body li {
  margin-bottom: 8px;
  color: var(--text-secondary);
}
.article-body blockquote {
  border-left: 4px solid var(--accent-gold);
  background: rgba(245,176,76,0.06);
  padding: 18px 24px;
  border-radius: 0 12px 12px 0;
  margin: 28px 0;
  color: var(--text-secondary);
  font-style: normal;
}
.article-body blockquote p {
  margin-bottom: 0;
}
.article-body img {
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  margin: 28px auto;
}
.article-body a {
  color: var(--brand-300);
  border-bottom: 1px solid rgba(56,189,248,0.3);
  transition: color 0.2s, border-color 0.2s;
}
.article-body a:hover {
  color: #ffffff;
  border-bottom-color: #ffffff;
}
.article-body strong {
  color: var(--text-primary);
  font-weight: 700;
}
.article-body hr {
  border: none;
  height: 1px;
  background: rgba(255,255,255,0.08);
  margin: 36px 0;
}

.not-found {
  text-align: center;
  padding: 80px 40px;
}
.not-found p {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.not-found a {
  display: inline-block;
  margin-top: 20px;
}

.article-foot {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 56px 48px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 32px;
}
.tag {
  display: inline-block;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  transition: all 0.2s;
}
.tag:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.2);
}
.article-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}
.pager-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: all 0.25s;
}
.pager-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.16);
  transform: translateY(-2px);
}
.pager-direction {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}
.pager-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}
.pager-card.pager-next {
  text-align: right;
}

.related-section {
  max-width: 860px;
  margin: 48px auto 0;
}
.related-section h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-primary);
}
.related-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.related-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 16px;
  transition: all 0.25s;
  overflow: hidden;
}
.related-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.16);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}
.related-card img {
  width: 180px;
  height: 120px;
  object-fit: cover;
  border-radius: 12px;
  flex-shrink: 0;
}
.related-info {
  flex: 1;
  min-width: 0;
}
.related-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-meta {
  font-size: 13px;
  color: var(--text-muted);
}
.back-btn {
  text-align: center;
  margin-top: 40px;
}
.btn-secondary {
  display: inline-block;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 10px;
  padding: 12px 32px;
  color: var(--brand-300);
  font-size: 15px;
  font-weight: 500;
  transition: all 0.25s;
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.3);
  color: #ffffff;
  transform: translateY(-2px);
}

.cta-banner {
  max-width: 860px;
  margin: 0 auto 96px;
  background: linear-gradient(135deg, rgba(245,176,76,0.12), rgba(255,210,138,0.05)),
              var(--glass-bg);
  border: 1px solid rgba(245,176,76,0.25);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(245,176,76,0.2), transparent 65%);
  pointer-events: none;
}
.cta-banner h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}
.cta-banner p {
  font-size: 15px;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}
.gold-button {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
  color: #0B1120;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 32px;
  border-radius: 10px;
  transition: box-shadow 0.25s, transform 0.25s;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.gold-button:hover {
  box-shadow: var(--glow-gold);
  transform: translateY(-2px);
  color: #0B1120;
}

.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
}
.footer-brand .brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 12px;
  line-height: 1.6;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col ul a:hover {
  color: var(--text-primary);
}
.app-badge-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.app-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  color: var(--text-secondary);
  font-size: 14px;
  transition: all 0.2s;
  width: fit-content;
}
.app-badge:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  color: var(--text-primary);
}
.footer-bottom {
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  padding-top: 32px;
  margin-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

@media (max-width: 991px) {
  .article-card {
    max-width: 100%;
  }
  .cta-banner {
    max-width: 100%;
  }
  .related-section {
    max-width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  :root {
    --section-pad: 56px;
  }
  .navbar {
    height: 64px;
    padding: 0 16px;
  }
  .brand {
    font-size: 16px;
  }
  .brand-icon {
    width: 30px;
    height: 30px;
  }
  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11,17,32,0.98);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 20px;
    gap: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    z-index: 999;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-actions .search-box {
    width: 40px;
    padding: 0;
    justify-content: center;
  }
  .nav-actions .search-box input {
    display: none;
  }
  .nav-actions .search-box:focus-within {
    width: 40px;
  }
  .nav-text-btn {
    display: none;
  }
  .nav-gold-btn {
    padding: 8px 14px;
    font-size: 13px;
  }
  .mobile-toggle {
    display: block;
  }
  .article-main {
    padding: 16px 0 64px;
  }
  .article-card {
    border-radius: 16px;
  }
  .article-head {
    padding: 32px 24px 24px;
  }
  .article-head h1 {
    font-size: 26px;
    line-height: 1.35;
  }
  .article-meta {
    gap: 12px;
    font-size: 13px;
  }
  .article-body {
    padding: 28px 24px 36px;
    font-size: 15px;
  }
  .article-body h2 {
    font-size: 22px;
  }
  .article-foot {
    padding: 0 24px 36px;
  }
  .article-pager {
    grid-template-columns: 1fr;
  }
  .related-section h2 {
    font-size: 24px;
  }
  .related-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .related-card img {
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
  }
  .cta-banner {
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 24px;
    margin-bottom: 64px;
  }
  .gold-button {
    width: 100%;
    text-align: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 0 16px;
  }
  .site-footer {
    padding: 40px 0 24px;
  }
  .breadcrumb {
    padding: 20px 16px 4px;
    font-size: 13px;
  }
  .breadcrumb .current {
    max-width: 220px;
  }
}
@media (max-width: 520px) {
  .nav-gold-btn {
    display: none;
  }
  .article-head h1 {
    font-size: 23px;
  }
  .article-body {
    padding: 24px 20px 32px;
  }
  .article-foot {
    padding: 0 20px 28px;
  }
  .pager-card {
    padding: 14px 16px;
  }
  .related-card {
    padding: 12px;
  }
}

/* roulang page: category2 */
:root {
  --bg-base: #0B1120;
  --bg-secondary: #111A2E;
  --bg-deep: #070B14;
  --brand-500: #2E7CF6;
  --brand-300: #38BDF8;
  --accent-gold: #F5B04C;
  --accent-gold-light: #FFD28A;
  --success: #34D399;
  --danger: #F87171;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --glass-bg: rgba(255,255,255,0.045);
  --glass-border: rgba(255,255,255,0.09);
  --glass-highlight: inset 0 1px 0 rgba(255,255,255,0.06);
  --shadow-card: 0 8px 24px rgba(0,0,0,0.24);
  --shadow-card-hover: 0 12px 36px rgba(0,0,0,0.36);
  --glow-blue: 0 0 0 4px rgba(56,189,248,0.15), 0 8px 32px rgba(56,189,248,0.35);
  --glow-gold: 0 0 0 4px rgba(245,176,76,0.15), 0 8px 32px rgba(245,176,76,0.35);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--brand-300); text-decoration: none; transition: color .2s ease; }
a:hover { color: #fff; }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-secondary); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head .tag { display: inline-block; font-size: 13px; font-weight: 500; letter-spacing: .02em; color: var(--accent-gold); border: 1px solid rgba(245,176,76,0.35); background: rgba(245,176,76,0.08); border-radius: 999px; padding: 4px 16px; margin-bottom: 12px; }
.section-head h2 { font-size: 32px; font-weight: 700; line-height: 1.25; letter-spacing: .01em; }
.section-head p { color: var(--text-secondary); max-width: 680px; margin: 12px auto 0; font-size: 15px; line-height: 1.7; }

/* ===== 导航 ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 72px;
  background: rgba(11,17,32,0.82);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background .3s ease;
}
.site-header.scrolled { background: rgba(11,17,32,0.95); }
.navbar {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  height: 72px;
  display: flex; align-items: center; gap: 32px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 32px; height: 32px; border-radius: 10px;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-300));
  color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 14px rgba(46,124,246,0.35);
}
.brand-text { font-size: 17px; font-weight: 700; color: var(--text-primary); letter-spacing: .01em; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 28px; margin-left: 8px; }
.nav-links a {
  font-size: 15px; font-weight: 500; color: var(--text-secondary);
  padding: 20px 2px; position: relative; transition: color .2s;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a.active { color: var(--brand-300); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--brand-500), var(--brand-300));
}
.nav-actions { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.search-box {
  display: flex; align-items: center; gap: 8px;
  height: 40px; padding: 0 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px; width: 200px;
  transition: width .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.search-box:focus-within { width: 240px; border-color: var(--brand-300); box-shadow: 0 0 0 3px rgba(56,189,248,0.15); }
.search-box svg { width: 16px; height: 16px; color: var(--text-muted); flex-shrink: 0; }
.search-box input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text-primary); font-size: 14px;
}
.search-box input::placeholder { color: var(--text-muted); }
.nav-text-btn {
  background: transparent; border: none; color: var(--text-secondary);
  font-size: 14px; font-weight: 500; padding: 6px 10px; border-radius: 8px; transition: color .2s;
}
.nav-text-btn:hover { color: var(--text-primary); }
.nav-gold-btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
  color: #0B1120; font-size: 14px; font-weight: 700;
  padding: 9px 20px; border-radius: 10px;
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.25), 0 4px 14px rgba(245,176,76,0.2);
  transition: box-shadow .25s ease, transform .2s ease;
}
.nav-gold-btn:hover { color: #0B1120; box-shadow: var(--glow-gold); transform: translateY(-1px); }
.mobile-toggle {
  display: none; background: transparent; border: none;
  color: var(--text-primary); width: 40px; height: 40px;
  border-radius: 10px; align-items: center; justify-content: center;
}
.mobile-toggle:hover { background: rgba(255,255,255,0.06); }

/* ===== 分类 Hero ===== */
.category-hero {
  position: relative;
  padding: 150px 0 80px;
  min-height: 420px;
  display: flex; align-items: center;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(46,124,246,0.22), transparent 55%),
    linear-gradient(180deg, rgba(11,17,32,0.82) 0%, rgba(11,17,32,0.92) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.category-hero::after {
  content: ""; position: absolute; bottom: -1px; left: 0; right: 0; height: 120px;
  background: linear-gradient(180deg, transparent, var(--bg-base));
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; max-width: 760px; }
.crumb {
  font-size: 13px; color: var(--text-muted); margin-bottom: 18px;
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.crumb a { color: var(--text-muted); }
.crumb a:hover { color: var(--brand-300); }
.crumb span { color: var(--text-secondary); }
.category-hero h1 {
  font-size: 46px; font-weight: 800; line-height: 1.15;
  margin-bottom: 18px; letter-spacing: .01em;
}
.category-hero h1 .brand { color: transparent; background: linear-gradient(120deg, var(--brand-500), var(--brand-300)); -webkit-background-clip: text; background-clip: text; }
.hero-desc { font-size: 17px; color: var(--text-secondary); line-height: 1.8; max-width: 640px; margin-bottom: 26px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tag {
  font-size: 13px; font-weight: 500; color: var(--text-secondary);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px; padding: 5px 16px;
}
.hero-tag.gold { color: var(--accent-gold); border-color: rgba(245,176,76,0.35); background: rgba(245,176,76,0.08); }

/* ===== 会员等级 ===== */
.levels { background: linear-gradient(180deg, var(--bg-base), var(--bg-secondary) 30%, var(--bg-base)); }
.levels-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; align-items: flex-end;
}
.level-card {
  border-radius: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-card);
  padding: 28px 24px;
  position: relative; overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease;
}
.level-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.level-card .level-band { position: absolute; top: 0; left: 0; right: 0; height: 4px; }
.level-card.silver .level-band { background: linear-gradient(90deg, #C0C8D0, #E8EDF2); }
.level-card.gold .level-band { background: linear-gradient(90deg, #F5B04C, #FFD28A); }
.level-card.platinum .level-band { background: linear-gradient(90deg, #B9C9E6, #D8E4F7); }
.level-card.blackgold .level-band { background: linear-gradient(90deg, #8C6B1E, #D4AF37); }
.level-card.silver { height: 300px; }
.level-card.gold { height: 336px; }
.level-card.platinum { height: 360px; }
.level-card.blackgold {
  height: 396px;
  border: 1px solid rgba(212,175,55,0.5);
  box-shadow: 0 0 0 1px rgba(212,175,55,0.2), 0 12px 36px rgba(212,175,55,0.15), var(--shadow-card);
}
.level-card.blackgold:hover { box-shadow: 0 0 0 1px rgba(212,175,55,0.3), 0 18px 48px rgba(212,175,55,0.25), var(--shadow-card-hover); }
.level-badge {
  position: absolute; top: 12px; right: 14px;
  font-size: 12px; font-weight: 700; color: #0B1120;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
  border-radius: 999px; padding: 3px 12px;
  box-shadow: 0 2px 10px rgba(245,176,76,0.3);
}
.level-name { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.level-sub { font-size: 13px; color: var(--text-muted); margin-bottom: 18px; }
.level-list { list-style: none; font-size: 14px; color: var(--text-secondary); flex: 1; }
.level-list li { position: relative; padding: 6px 0 6px 22px; }
.level-list li::before {
  content: ""; position: absolute; left: 0; top: 12px;
  width: 10px; height: 6px;
  border-left: 2px solid var(--accent-gold);
  border-bottom: 2px solid var(--accent-gold);
  transform: rotate(-45deg);
}
.level-card.blackgold .level-list li::before { border-color: #D4AF37; }
.level-btn {
  display: block; text-align: center;
  margin-top: 20px; padding: 10px 16px; border-radius: 10px;
  font-size: 14px; font-weight: 600; transition: all .25s ease;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text-primary);
}
.level-btn:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.3); color: var(--text-primary); }
.level-btn.gold-btn {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
  color: #0B1120; border: none; font-weight: 700;
  box-shadow: 0 4px 16px rgba(245,176,76,0.25);
}
.level-btn.gold-btn:hover { box-shadow: var(--glow-gold); color: #0B1120; }

/* ===== 权益对比 ===== */
.compare-wrap {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  backdrop-filter: blur(18px) saturate(140%);
}
.compare-head {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.compare-head > div { padding: 20px 24px; font-weight: 700; font-size: 15px; }
.compare-head .col-1 { color: var(--text-secondary); }
.compare-head .col-free { color: var(--text-secondary); text-align: center; }
.compare-head .col-pro {
  text-align: center; color: var(--accent-gold);
  background: rgba(245,176,76,0.08);
  border-left: 1px solid rgba(245,176,76,0.2);
  border-right: 1px solid rgba(245,176,76,0.2);
  position: relative;
}
.compare-head .col-pro .rec-badge {
  position: absolute; top: -1px; right: 12px;
  font-size: 11px; font-weight: 700; color: #0B1120;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
  border-radius: 0 0 8px 8px; padding: 2px 10px;
}
.compare-row {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr;
  align-items: center;
  min-height: 58px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: background .2s;
}
.compare-row:hover { background: rgba(255,255,255,0.02); }
.compare-row:last-child { border-bottom: none; }
.compare-row .benefit {
  padding: 14px 24px; display: flex; align-items: center; gap: 12px;
  font-size: 14px; color: var(--text-primary); font-weight: 500;
}
.compare-row .benefit svg { width: 18px; height: 18px; color: var(--brand-300); flex-shrink: 0; }
.compare-row .col-free { text-align: center; padding: 14px; color: var(--text-muted); }
.compare-row .col-pro {
  text-align: center; padding: 14px; color: var(--accent-gold);
  background: rgba(245,176,76,0.06);
  border-left: 1px solid rgba(245,176,76,0.12);
  border-right: 1px solid rgba(245,176,76,0.12);
}
.compare-note { display: flex; justify-content: center; color: var(--text-muted); font-size: 13px; padding: 18px 24px; border-top: 1px solid rgba(255,255,255,0.06); text-align: center; }

/* ===== 场景与流程 ===== */
.scenario-flow { background: var(--bg-secondary); }
.sf-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.sf-sub h3 { font-size: 22px; font-weight: 700; margin-bottom: 24px; position: relative; padding-left: 16px; }
.sf-sub h3::before { content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 4px; border-radius: 4px; background: linear-gradient(180deg, var(--brand-500), var(--brand-300)); }
.scenario-list { list-style: none; margin-top: 20px; }
.scenario-list li {
  display: flex; gap: 14px; padding: 14px 0;
  border-bottom: 1px dashed rgba(255,255,255,0.08);
}
.scenario-list li:last-child { border-bottom: none; }
.scenario-num {
  width: 34px; height: 34px; flex-shrink: 0;
  border-radius: 10px;
  background: rgba(46,124,246,0.15);
  border: 1px solid rgba(56,189,248,0.25);
  color: var(--brand-300);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700;
}
.scenario-list .sc-txt { font-size: 15px; color: var(--text-secondary); }
.scenario-list .sc-txt strong { display: block; color: var(--text-primary); font-weight: 600; margin-bottom: 2px; }
.flow-steps { list-style: none; counter-reset: flow; }
.flow-steps li {
  counter-increment: flow;
  position: relative;
  padding: 0 0 28px 50px;
}
.flow-steps li::before {
  content: counter(flow, decimal-leading-zero);
  position: absolute; left: 0; top: 0;
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-300));
  color: #fff; font-size: 13px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 0 4px rgba(46,124,246,0.15);
}
.flow-steps li::after {
  content: ""; position: absolute; left: 17px; top: 38px; bottom: 2px;
  width: 1px; background: rgba(255,255,255,0.1);
}
.flow-steps li:last-child::after { display: none; }
.flow-steps strong { display: block; font-size: 16px; color: var(--text-primary); font-weight: 600; margin-bottom: 4px; }
.flow-steps p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }

/* ===== 内容卡片 ===== */
.featured-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.feature-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: rgba(255,255,255,0.16); }
.feature-card .thumb { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.feature-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.feature-card:hover .thumb img { transform: scale(1.05); }
.feature-card .card-tag {
  position: absolute; top: 12px; left: 12px;
  font-size: 12px; font-weight: 600; color: var(--accent-gold);
  background: rgba(11,17,32,0.7);
  border: 1px solid rgba(245,176,76,0.35);
  border-radius: 999px; padding: 3px 12px;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.feature-card .card-body { padding: 18px 20px 20px; }
.feature-card .card-body h3 { font-size: 18px; font-weight: 600; line-height: 1.4; margin-bottom: 8px; }
.feature-card .card-body h3 a { color: var(--text-primary); }
.feature-card .card-body h3 a:hover { color: var(--brand-300); }
.feature-card .card-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }
.feature-card .card-meta {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 16px; padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 13px; color: var(--text-muted);
}
.feature-card .card-meta a { font-size: 13px; color: var(--brand-300); font-weight: 500; }
.feature-card .card-meta a:hover { color: #fff; }

/* ===== 标签云 ===== */
.tag-cloud { text-align: center; }
.tag-cloud .tags-wrap { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 30px; }
.tag-cloud a {
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 999px; padding: 8px 20px;
  transition: all .2s ease;
}
.tag-cloud a:hover {
  background: rgba(46,124,246,0.15);
  border-color: rgba(56,189,248,0.4);
  color: var(--brand-300);
  box-shadow: 0 4px 16px rgba(46,124,246,0.2);
}

/* ===== FAQ ===== */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .25s ease, background .25s ease;
}
.faq-item.open { border-color: rgba(56,189,248,0.35); background: rgba(255,255,255,0.05); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px;
  background: transparent; border: none;
  font-size: 16px; font-weight: 600; color: var(--text-primary);
  text-align: left; transition: color .2s;
}
.faq-question:hover { color: var(--brand-300); }
.faq-icon {
  width: 30px; height: 30px; flex-shrink: 0;
  border: 1.5px dashed rgba(255,255,255,0.35);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 300; color: var(--text-secondary);
  transition: transform .3s ease, color .3s ease, border-color .3s ease;
}
.faq-item.open .faq-icon { transform: rotate(45deg); color: var(--accent-gold); border-color: var(--accent-gold); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height .35s ease;
}
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer p { padding: 0 20px 18px; font-size: 14px; color: var(--text-secondary); line-height: 1.75; }

/* ===== 站内推荐 ===== */
.recommend-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.rec-card {
  position: relative;
  border-radius: 20px;
  padding: 36px 32px;
  min-height: 200px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 85% 15%, rgba(56,189,248,0.2), transparent 55%),
    linear-gradient(135deg, rgba(46,124,246,0.2), rgba(17,26,46,0.9)),
    var(--bg-secondary);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex; flex-direction: column; justify-content: flex-end;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.rec-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: rgba(56,189,248,0.35); }
.rec-card .rec-label { font-size: 12px; font-weight: 600; color: var(--brand-300); letter-spacing: .04em; margin-bottom: 8px; }
.rec-card h3 { font-size: 22px; font-weight: 700; color: var(--text-primary); line-height: 1.3; margin-bottom: 8px; }
.rec-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 18px; }
.rec-card .rec-link { font-weight: 600; font-size: 14px; color: var(--brand-300); display: inline-flex; align-items: center; gap: 6px; }
.rec-card .rec-link svg { width: 16px; height: 16px; transition: transform .2s; }
.rec-card:hover .rec-link svg { transform: translateX(4px); }

/* ===== CTA ===== */
.cta-banner {
  position: relative;
  border-radius: 24px;
  padding: 64px 56px;
  overflow: hidden;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(245,176,76,0.22), transparent 60%),
    linear-gradient(135deg, rgba(17,26,46,0.95), rgba(11,17,32,0.98));
  border: 1px solid rgba(245,176,76,0.3);
  box-shadow: 0 16px 48px rgba(0,0,0,0.35);
}
.cta-banner h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.cta-banner p { font-size: 15px; color: var(--text-secondary); max-width: 520px; margin: 0 auto 32px; }
.cta-btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
  color: #0B1120; font-size: 16px; font-weight: 700;
  padding: 13px 40px; border-radius: 10px;
  box-shadow: 0 4px 20px rgba(245,176,76,0.3);
  transition: box-shadow .25s ease, transform .2s ease;
}
.cta-btn:hover { color: #0B1120; box-shadow: var(--glow-gold); transform: translateY(-2px); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 32px;
  margin-top: 80px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px; margin-bottom: 48px;
}
.footer-brand .brand-text { font-size: 18px; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.7; max-width: 300px; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: var(--text-primary); margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col li a { font-size: 14px; color: var(--text-muted); transition: color .2s, padding-left .2s; }
.footer-col li a:hover { color: var(--brand-300); padding-left: 4px; }
.app-badge-group { display: flex; flex-direction: column; gap: 10px; }
.app-badge {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  transition: all .2s ease;
}
.app-badge svg { color: var(--brand-300); }
.app-badge:hover { color: var(--text-primary); border-color: rgba(56,189,248,0.4); box-shadow: 0 4px 14px rgba(46,124,246,0.2); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  text-align: center;
  font-size: 13px; color: var(--text-muted);
}

/* ===== 响应式 ===== */
@media (max-width: 1199px) {
  .navbar { gap: 20px; }
  .nav-links { gap: 18px; }
  .search-box { width: 170px; }
  .search-box:focus-within { width: 200px; }
  .levels-grid { gap: 16px; }
  .sf-grid { gap: 32px; }
}
@media (max-width: 991px) {
  .navbar .nav-links { display: none; }
  .mobile-toggle { display: flex; }
  .navbar .search-box { display: none; }
  .navbar .nav-text-btn { display: none; }
  .navbar .nav-gold-btn { display: none; }
  .navbar { flex-wrap: wrap; }
  .nav-links.open {
    position: absolute; top: 72px; left: 0; right: 0;
    display: flex; flex-direction: column; align-items: flex-start;
    padding: 16px 24px 24px;
    background: rgba(11,17,32,0.98);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 16px 40px rgba(0,0,0,0.4);
    z-index: 99;
  }
  .nav-links.open a { padding: 10px 0; width: 100%; }
  .nav-links.open a.active::after { left: 0; right: auto; width: 40px; bottom: 6px; }
  .levels-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .level-card.silver, .level-card.gold, .level-card.platinum, .level-card.blackgold { height: auto !important; min-height: 286px; }
  .sf-grid { grid-template-columns: 1fr; gap: 40px; }
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
  .recommend-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .category-hero { padding-top: 130px; }
}
@media (max-width: 767px) {
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 32px; }
  .section-head h2 { font-size: 26px; }
  .category-hero { padding: 110px 0 56px; min-height: 360px; }
  .category-hero h1 { font-size: 32px; line-height: 1.2; }
  .hero-desc { font-size: 15px; }
  .compare-head .col-1 { padding: 12px 10px; font-size: 13px; }
  .compare-head .col-free, .compare-head .col-pro { padding: 12px 8px; font-size: 13px; }
  .compare-row .benefit { padding: 12px 10px; font-size: 13px; gap: 8px; }
  .compare-row .benefit svg { width: 14px; height: 14px; }
  .compare-row .col-free, .compare-row .col-pro { padding: 10px 6px; }
  .featured-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-brand p { max-width: none; }
  .cta-banner { padding: 40px 24px; }
  .cta-banner h2 { font-size: 26px; }
  .cta-btn { width: 100%; text-align: center; }
  .rec-card { padding: 28px 22px; }
  .faq-question { font-size: 15px; padding: 16px; }
  .faq-answer p { font-size: 14px; }
}
@media (max-width: 520px) {
  .navbar { padding: 0 16px; }
  .container { padding: 0 16px; }
  .brand-text { font-size: 15px; }
  .levels-grid { grid-template-columns: 1fr; }
  .level-card.silver, .level-card.gold, .level-card.platinum, .level-card.blackgold { min-height: 260px; }
  .compare-wrap { overflow-x: auto; }
  .compare-head, .compare-row { grid-template-columns: 1.2fr 0.8fr 0.8fr; }
  .compare-row .benefit { font-size: 12px; padding: 10px 8px; }
  .compare-row .col-free, .compare-row .col-pro { font-size: 12px; padding: 8px 4px; }
  .scenario-list .sc-txt { font-size: 14px; }
  .flow-steps li { padding-left: 44px; }
}