/* roulang page: index */
/* ===== Design Variables ===== */
:root {
  --primary: #0c1428;
  --primary-light: #151f3a;
  --primary-dark: #070b18;
  --accent: #d4a853;
  --accent-light: #e8c06a;
  --accent-dark: #b8913a;
  --gold-glow: rgba(212, 168, 83, 0.15);
  --gold-glow-strong: rgba(212, 168, 83, 0.35);
  --bg-body: #080c1a;
  --bg-card: #101830;
  --bg-card-hover: #172040;
  --bg-section-alt: #0a1025;
  --text-primary: #f0ede8;
  --text-secondary: #b8b4ac;
  --text-muted: #7a756c;
  --border-color: #1e2a4a;
  --border-light: #2a3a5a;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 56px rgba(0,0,0,0.5);
  --shadow-gold: 0 4px 24px rgba(212,168,83,0.15);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-display: 'Inter', 'SF Pro Display', 'Segoe UI', sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --header-height: 72px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-body);
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--accent-light); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}
button { cursor: pointer; background: none; color: inherit; }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
}

/* ===== Section ===== */
.section {
  padding: 80px 0;
}
.section-alt {
  background: var(--bg-section-alt);
}
.section-dark {
  background: var(--primary-dark);
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header h2 {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text-primary) 60%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}
.section-divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 2px;
  margin: 12px auto 20px;
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-header h2 { font-size: 1.8rem; }
  .section-header p { font-size: 1rem; }
}

/* ===== Header & Navigation ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(8, 12, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(30, 42, 74, 0.5);
  transition: background var(--transition), border-color var(--transition);
}
.header.scrolled {
  background: rgba(8, 12, 26, 0.98);
  border-bottom-color: var(--border-color);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  flex-shrink: 0;
}
.header-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary-dark);
  font-weight: 900;
}
.header-logo .logo-text {
  background: linear-gradient(90deg, var(--text-primary), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.header-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
  border: 1px solid transparent;
}
.header-nav a i {
  font-size: 0.85rem;
  opacity: 0.7;
}
.header-nav a:hover {
  color: var(--text-primary);
  background: rgba(212, 168, 83, 0.08);
  border-color: rgba(212, 168, 83, 0.15);
}
.header-nav a.active {
  color: var(--accent);
  background: rgba(212, 168, 83, 0.12);
  border-color: rgba(212, 168, 83, 0.25);
  font-weight: 600;
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header-cta .btn-cta {
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--primary-dark);
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.9rem;
  transition: all var(--transition);
  box-shadow: var(--shadow-gold);
}
.header-cta .btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(212,168,83,0.3);
  color: var(--primary-dark);
}
.header-cta .btn-cta i {
  margin-right: 6px;
}
.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1.2rem;
  transition: all var(--transition);
}
.mobile-toggle:hover {
  background: rgba(255,255,255,0.1);
}

@media (max-width: 768px) {
  .header-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(8, 12, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-120%);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
  }
  .header-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .header-nav a {
    width: 100%;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    justify-content: flex-start;
  }
  .mobile-toggle {
    display: flex;
  }
  .header-cta .btn-cta span { display: none; }
  .header-cta .btn-cta i { margin: 0; }
  .header-cta .btn-cta {
    padding: 10px 14px;
  }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
  background: var(--primary-dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.6;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(8, 12, 26, 0.92) 0%,
    rgba(8, 12, 26, 0.6) 40%,
    rgba(8, 12, 26, 0.3) 70%,
    rgba(8, 12, 26, 0.7) 100%
  );
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(212,168,83,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 30%, rgba(212,168,83,0.05) 0%, transparent 50%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  padding: 60px 24px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(212, 168, 83, 0.12);
  border: 1px solid rgba(212, 168, 83, 0.2);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 28px;
  backdrop-filter: blur(4px);
}
.hero-badge i { font-size: 0.75rem; }
.hero-title {
  font-size: 3.8rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero-title .highlight {
  background: linear-gradient(135deg, var(--accent), var(--accent-light), #f5d88a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 600px;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.hero-actions .btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--primary-dark);
  border-radius: 100px;
  font-weight: 700;
  font-size: 1.05rem;
  transition: all var(--transition);
  box-shadow: 0 4px 24px rgba(212,168,83,0.25);
}
.hero-actions .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(212,168,83,0.35);
  color: var(--primary-dark);
}
.hero-actions .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  border: 1px solid var(--border-light);
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.hero-actions .btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(212,168,83,0.06);
}
.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid rgba(30, 42, 74, 0.4);
}
.hero-stat-item {
  text-align: left;
}
.hero-stat-item .number {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.hero-stat-item .label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 6px;
}

@media (max-width: 1024px) {
  .hero-title { font-size: 3rem; }
  .hero-stats { gap: 32px; }
}
@media (max-width: 768px) {
  .hero { min-height: 80vh; }
  .hero-content { padding: 40px 16px; }
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary { padding: 14px 24px; font-size: 0.95rem; }
  .hero-stats { flex-wrap: wrap; gap: 24px; }
  .hero-stat-item .number { font-size: 1.6rem; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .hero-stats { gap: 16px; }
  .hero-stat-item { width: calc(50% - 8px); }
}

/* ===== Features / Core Strengths ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover {
  border-color: var(--border-light);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  background: var(--bg-card-hover);
}
.feature-card:hover::before {
  opacity: 1;
}
.feature-icon {
  width: 64px;
  height: 64px;
  background: rgba(212, 168, 83, 0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.6rem;
  color: var(--accent);
  transition: all var(--transition);
}
.feature-card:hover .feature-icon {
  background: rgba(212, 168, 83, 0.2);
  transform: scale(1.05);
}
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .features-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 28px 20px; }
}

/* ===== Category / Tab Navigation ===== */
.category-section {
  padding: 60px 0 80px;
}
.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 40px;
}
.category-tab {
  padding: 12px 28px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.category-tab i { font-size: 0.85rem; opacity: 0.7; }
.category-tab:hover {
  border-color: var(--border-light);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}
.category-tab.active {
  background: rgba(212, 168, 83, 0.12);
  border-color: rgba(212, 168, 83, 0.3);
  color: var(--accent);
  font-weight: 600;
}

.category-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.category-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  cursor: pointer;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}
.category-card .card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.category-card:hover .card-img {
  transform: scale(1.05);
}
.category-card .card-body {
  padding: 20px 24px 24px;
}
.category-card .card-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(212, 168, 83, 0.1);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 10px;
}
.category-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.category-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.category-card .card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}
.category-card .card-footer .price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}
.category-card .card-footer .btn-small {
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(212, 168, 83, 0.1);
  border: 1px solid rgba(212, 168, 83, 0.2);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  transition: all var(--transition);
}
.category-card .card-footer .btn-small:hover {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}

@media (max-width: 1024px) {
  .category-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .category-cards { grid-template-columns: 1fr; }
  .category-tabs { gap: 8px; }
  .category-tab { padding: 10px 20px; font-size: 0.85rem; }
}

/* ===== Latest News / CMS List ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.news-card {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all var(--transition);
}
.news-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}
.news-card .news-thumb {
  width: 120px;
  height: 90px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}
.news-card .news-info {
  flex: 1;
  min-width: 0;
}
.news-card .news-category {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(212, 168, 83, 0.1);
  margin-bottom: 6px;
}
.news-card .news-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--text-primary);
  transition: color var(--transition);
}
.news-card:hover .news-title { color: var(--accent); }
.news-card .news-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.news-card .news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.news-card .news-meta i { margin-right: 4px; font-size: 0.7rem; }
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 1.05rem;
}
.news-empty i {
  font-size: 2.4rem;
  color: var(--border-color);
  margin-bottom: 16px;
  display: block;
}

@media (max-width: 768px) {
  .news-grid { grid-template-columns: 1fr; }
  .news-card { flex-direction: column; }
  .news-card .news-thumb { width: 100%; height: 180px; }
}

/* ===== Stats Counter ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-card {
  text-align: center;
  padding: 40px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.stat-card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}
.stat-card .stat-icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 16px;
  opacity: 0.8;
}
.stat-card .stat-number {
  font-size: 2.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 6px;
}
.stat-card .stat-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat-card .stat-number { font-size: 2.2rem; }
}

/* ===== Process Flow ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 48px;
  left: 60px;
  right: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--border-color), var(--accent), var(--border-color));
  opacity: 0.3;
}
.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}
.process-step .step-number {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent);
  transition: all var(--transition);
}
.process-step:hover .step-number {
  border-color: var(--accent);
  background: rgba(212, 168, 83, 0.1);
  box-shadow: 0 0 20px rgba(212, 168, 83, 0.15);
  transform: scale(1.05);
}
.process-step h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.process-step p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 200px;
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }
}
@media (max-width: 520px) {
  .process-steps { grid-template-columns: 1fr; }
  .process-step p { max-width: 100%; }
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover {
  border-color: var(--border-light);
}
.faq-item.active {
  border-color: rgba(212, 168, 83, 0.3);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  transition: color var(--transition);
  width: 100%;
  text-align: left;
  background: none;
}
.faq-question:hover { color: var(--accent); }
.faq-question .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(212, 168, 83, 0.1);
  color: var(--accent);
  font-size: 0.8rem;
  transition: all var(--transition);
}
.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: rgba(212, 168, 83, 0.2);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 24px;
}
.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px;
}
.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .faq-question { padding: 16px 18px; font-size: 0.95rem; }
  .faq-item.active .faq-answer { padding: 0 18px 16px; }
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  overflow: hidden;
  padding: 100px 0;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  z-index: 0;
}
.cta-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8,12,26,0.9) 0%, rgba(8,12,26,0.7) 100%);
}
.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.cta-content p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}
.cta-content .btn-cta-large {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 44px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--primary-dark);
  border-radius: 100px;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all var(--transition);
  box-shadow: 0 6px 32px rgba(212,168,83,0.25);
}
.cta-content .btn-cta-large:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 48px rgba(212,168,83,0.35);
  color: var(--primary-dark);
}
.cta-content .btn-cta-large i { font-size: 1rem; }
.cta-contact {
  margin-top: 24px;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.cta-contact a {
  color: var(--accent);
  font-weight: 600;
}

@media (max-width: 768px) {
  .cta-section { padding: 64px 0; }
  .cta-content h2 { font-size: 1.8rem; }
  .cta-content p { font-size: 1rem; }
  .cta-content .btn-cta-large { padding: 16px 32px; font-size: 1rem; }
}

/* ===== Footer ===== */
.footer {
  background: var(--primary-dark);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.footer-brand .footer-logo .logo-icon-small {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--primary-dark);
  font-weight: 900;
}
.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 320px;
}
.footer-brand .social-links {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}
.footer-brand .social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all var(--transition);
}
.footer-brand .social-links a:hover {
  background: rgba(212, 168, 83, 0.1);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-col ul li a:hover {
  color: var(--accent);
  transform: translateX(4px);
}
.footer-col ul li a i { font-size: 0.7rem; opacity: 0.5; }
.footer-contact li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.footer-contact li i {
  color: var(--accent);
  margin-top: 4px;
  width: 16px;
  text-align: center;
}
.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-bottom-links a:hover { color: var(--accent); }

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom-links { justify-content: center; }
}

/* ===== Buttons & Badges (Global) ===== */
.btn-gold {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--primary-dark);
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all var(--transition);
  box-shadow: var(--shadow-gold);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(212,168,83,0.3);
  color: var(--primary-dark);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: 1px solid var(--border-light);
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(212,168,83,0.06);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 12px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
}
.badge-gold {
  background: rgba(212, 168, 83, 0.12);
  color: var(--accent);
}
.badge-ghost {
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}
.animate-in-delay-1 { animation-delay: 0.1s; }
.animate-in-delay-2 { animation-delay: 0.2s; }
.animate-in-delay-3 { animation-delay: 0.3s; }
.animate-in-delay-4 { animation-delay: 0.4s; }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--primary-dark); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

/* ===== Selection ===== */
::selection { background: rgba(212, 168, 83, 0.3); color: var(--text-primary); }

/* ===== Utility ===== */
.text-center { text-align: center; }
.text-gold { color: var(--accent); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

/* ===== Responsive fine-tune ===== */
@media (max-width: 1024px) {
  :root { --max-width: 960px; }
}
@media (max-width: 768px) {
  :root { --header-height: 64px; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a3a;
            --primary-light: #2c3e50;
            --primary-dark: #0f1a24;
            --accent: #d4a843;
            --accent-light: #e8c56d;
            --accent-dark: #b8922f;
            --gold: #d4a843;
            --gold-light: #f0dfb8;
            --bg-dark: #0b1219;
            --bg-card: #16212e;
            --bg-card-hover: #1e2d3d;
            --bg-section: #0f1922;
            --text-light: #f0ece4;
            --text-muted: #a09888;
            --text-dim: #6a6558;
            --border-color: #2a3a4a;
            --border-gold: rgba(212, 168, 67, 0.3);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-sm: 0 4px 16px rgba(0,0,0,0.3);
            --shadow-gold: 0 4px 24px rgba(212, 168, 67, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-main);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent-light); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-light); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; color: var(--text-muted); }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(212, 168, 67, 0.3);
            color: var(--bg-dark);
        }
        .btn-outline {
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--border-gold);
        }
        .btn-outline:hover {
            background: rgba(212, 168, 67, 0.1);
            border-color: var(--accent);
            transform: translateY(-2px);
            color: var(--accent);
        }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            background: rgba(212, 168, 67, 0.15);
            color: var(--accent);
            border: 1px solid var(--border-gold);
            text-transform: uppercase;
        }
        .badge-gold { background: var(--accent); color: var(--bg-dark); border-color: var(--accent); }
        .badge-dim { background: rgba(255,255,255,0.05); color: var(--text-muted); border-color: transparent; }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 18, 25, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 58, 74, 0.5);
            height: var(--header-h);
            transition: background var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 1px;
        }
        .header-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            color: var(--bg-dark);
            box-shadow: 0 4px 16px rgba(212, 168, 67, 0.25);
        }
        .header-logo span:last-child {
            background: linear-gradient(135deg, var(--accent), var(--gold-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
            position: relative;
        }
        .header-nav a:hover {
            color: var(--text-light);
            background: rgba(255,255,255,0.06);
        }
        .header-nav a.active {
            color: var(--accent);
            background: rgba(212, 168, 67, 0.12);
            border: 1px solid var(--border-gold);
        }
        .header-nav a i { font-size: 0.85rem; }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-cta .btn { padding: 8px 22px; font-size: 0.85rem; }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px;
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .menu-toggle { display: block; }
            .header-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(11, 18, 25, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 999;
            }
            .header-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .header-nav a {
                width: 100%;
                padding: 12px 18px;
                font-size: 1rem;
            }
            .header-cta .btn span { display: none; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
            .container { padding: 0 16px; }
        }
        @media (max-width: 480px) {
            .header-logo { font-size: 1.1rem; }
            .header-logo .logo-icon { width: 34px; height: 34px; font-size: 0.9rem; }
            .header-cta .btn { padding: 6px 16px; font-size: 0.8rem; }
        }

        /* ===== 文章页 Banner ===== */
        .article-banner {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-dark) 50%, #0a121c 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(42, 58, 74, 0.4);
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-dark), transparent);
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: var(--text-muted); }
        .article-breadcrumb a:hover { color: var(--accent); }
        .article-breadcrumb .sep { color: var(--text-dim); font-size: 0.7rem; }
        .article-banner .badge { margin-bottom: 12px; }
        .article-banner h1 {
            font-size: 2.6rem;
            max-width: 900px;
            line-height: 1.25;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text-light) 60%, var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-dim);
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i { color: var(--accent); font-size: 0.8rem; }

        /* ===== 文章正文 ===== */
        .article-main {
            padding: 60px 0 80px;
            background: var(--bg-dark);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }
        .article-body .featured-image {
            width: 100%;
            border-radius: var(--radius-sm);
            margin-bottom: 32px;
            box-shadow: var(--shadow);
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-muted);
        }
        .article-content p { margin-bottom: 1.4rem; }
        .article-content h2, .article-content h3 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--text-light);
        }
        .article-content ul, .article-content ol {
            margin-bottom: 1.4rem;
            padding-left: 1.5rem;
        }
        .article-content li { margin-bottom: 0.5rem; color: var(--text-muted); }
        .article-content ul li { list-style: disc; }
        .article-content ol li { list-style: decimal; }
        .article-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
        .article-content a:hover { color: var(--accent-light); }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(212, 168, 67, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--gold-light);
            font-style: italic;
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
        }
        .article-tags .badge { font-size: 0.8rem; }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--accent);
        }
        .sidebar-card h3 i { font-size: 1rem; }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(42, 58, 74, 0.4);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .sidebar-list a:hover { color: var(--accent); padding-left: 4px; }
        .sidebar-list a i { font-size: 0.7rem; color: var(--accent); }
        .sidebar-cta {
            text-align: center;
            padding: 32px 20px;
        }
        .sidebar-cta h4 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: var(--gold-light);
        }
        .sidebar-cta p {
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .sidebar-cta .btn { width: 100%; justify-content: center; }

        /* ===== 文章未找到 ===== */
        .not-found-wrap {
            text-align: center;
            padding: 80px 20px;
            min-height: 400px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        .not-found-wrap i { font-size: 4rem; color: var(--text-dim); margin-bottom: 24px; }
        .not-found-wrap h2 { color: var(--text-light); margin-bottom: 12px; }
        .not-found-wrap p { color: var(--text-dim); margin-bottom: 28px; }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 60px 0 80px;
            background: var(--bg-section);
            border-top: 1px solid rgba(42, 58, 74, 0.3);
        }
        .related-section h2 {
            text-align: center;
            margin-bottom: 40px;
            font-size: 1.8rem;
        }
        .related-section h2 i { color: var(--accent); margin-right: 10px; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: var(--border-gold);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card-body {
            padding: 20px;
        }
        .related-card-body .badge { margin-bottom: 8px; }
        .related-card-body h4 {
            font-size: 1rem;
            margin-bottom: 8px;
        }
        .related-card-body h4 a { color: var(--text-light); }
        .related-card-body h4 a:hover { color: var(--accent); }
        .related-card-body p {
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            border-top: 1px solid rgba(42, 58, 74, 0.5);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(42, 58, 74, 0.4);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .logo-icon-small {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1rem;
            color: var(--bg-dark);
        }
        .footer-brand p { font-size: 0.9rem; color: var(--text-dim); margin-bottom: 20px; max-width: 360px; }
        .social-links { display: flex; gap: 12px; }
        .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .social-links a:hover {
            background: rgba(212, 168, 67, 0.15);
            color: var(--accent);
            border-color: var(--border-gold);
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 1rem;
            margin-bottom: 20px;
            color: var(--gold-light);
            letter-spacing: 0.5px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            color: var(--text-dim);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
        .footer-col ul li a i { font-size: 0.6rem; color: var(--accent); }
        .footer-contact li {
            color: var(--text-dim);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-contact li i { color: var(--accent); width: 18px; text-align: center; }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p { font-size: 0.85rem; color: var(--text-dim); margin-bottom: 0; }
        .footer-bottom-links { display: flex; gap: 16px; flex-wrap: wrap; }
        .footer-bottom-links a { font-size: 0.85rem; color: var(--text-dim); transition: color var(--transition); }
        .footer-bottom-links a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .article-banner { padding: 110px 0 40px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-body { padding: 24px; }
            .article-sidebar { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 480px) {
            .article-banner h1 { font-size: 1.5rem; }
            .article-body { padding: 16px; }
            .article-meta { flex-direction: column; gap: 8px; align-items: flex-start; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --accent: #e94560;
            --accent-hover: #d63851;
            --accent-glow: rgba(233, 69, 96, 0.3);
            --gold: #f5a623;
            --gold-light: #f7c948;
            --dark-bg: #0f0f1a;
            --dark-surface: #1a1a2e;
            --dark-card: #222240;
            --dark-card-hover: #2a2a50;
            --text-light: #f0f0f5;
            --text-muted: #a0a0c0;
            --text-dim: #6a6a8a;
            --border-dark: #2a2a4a;
            --border-accent: rgba(233, 69, 96, 0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(233, 69, 96, 0.15);
            --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-display: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-light);
            background: var(--dark-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--gold);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--gold-light);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 4px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--dark-bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-dark);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-dim);
        }

        /* ===== 头部导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dark);
            height: var(--header-height);
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(15, 15, 26, 0.98);
            box-shadow: var(--shadow-md);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .header-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent), var(--gold));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: #fff;
            box-shadow: 0 0 20px var(--accent-glow);
        }
        .header-logo span:last-child {
            background: linear-gradient(135deg, var(--text-light), var(--gold-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .header-nav a i {
            margin-right: 6px;
            font-size: 14px;
        }
        .header-nav a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }
        .header-nav a.active {
            color: var(--text-light);
            background: rgba(233, 69, 96, 0.15);
            box-shadow: inset 0 0 0 1px var(--border-accent);
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 12px var(--accent-glow);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .header-cta .btn-cta {
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--accent), #c0392b);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 20px var(--accent-glow);
        }
        .header-cta .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px var(--accent-glow);
        }
        .header-cta .btn-cta:active {
            transform: translateY(0);
        }
        .header-cta .btn-cta i {
            margin-right: 6px;
        }

        /* 移动端汉堡 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 26px;
            height: 2px;
            background: var(--text-light);
            border-radius: 4px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero 首屏 ===== */
        .hero-category {
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 140px 24px 80px;
            background: var(--dark-bg);
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            transform: scale(1.05);
            animation: heroParallax 20s ease-in-out infinite alternate;
        }
        .hero-category::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 80%, rgba(233, 69, 96, 0.12) 0%, transparent 70%),
                linear-gradient(to bottom, rgba(15, 15, 26, 0.6) 0%, var(--dark-bg) 100%);
        }
        @keyframes heroParallax {
            0% {
                transform: scale(1.05) translate(0, 0);
            }
            100% {
                transform: scale(1.15) translate(-2%, -1%);
            }
        }
        .hero-category .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
        }
        .hero-category .hero-badge {
            display: inline-block;
            padding: 6px 20px;
            border-radius: 30px;
            background: rgba(233, 69, 96, 0.15);
            border: 1px solid var(--border-accent);
            font-size: 13px;
            font-weight: 500;
            color: var(--accent);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
        }
        .hero-category .hero-badge i {
            margin-right: 6px;
        }
        .hero-category h1 {
            font-size: 52px;
            font-weight: 900;
            line-height: 1.15;
            color: var(--text-light);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-category h1 .highlight {
            background: linear-gradient(135deg, var(--accent), var(--gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-category p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero-category .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .hero-category .hero-actions .btn-primary {
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--accent), #c0392b);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 6px 28px var(--accent-glow);
        }
        .hero-category .hero-actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 44px var(--accent-glow);
        }
        .hero-category .hero-actions .btn-secondary {
            padding: 14px 36px;
            background: transparent;
            color: var(--text-light);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
        }
        .hero-category .hero-actions .btn-secondary:hover {
            border-color: var(--accent);
            background: rgba(233, 69, 96, 0.08);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header .section-tag {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 30px;
            background: rgba(233, 69, 96, 0.1);
            border: 1px solid var(--border-accent);
            font-size: 12px;
            font-weight: 500;
            color: var(--accent);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header h2 .highlight {
            background: linear-gradient(135deg, var(--accent), var(--gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* ===== 子分类标签导航 ===== */
        .subnav-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 48px;
            padding: 0 12px;
        }
        .subnav-tabs .tab {
            padding: 10px 24px;
            border-radius: 30px;
            background: var(--dark-card);
            border: 1px solid var(--border-dark);
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subnav-tabs .tab i {
            margin-right: 6px;
        }
        .subnav-tabs .tab:hover {
            border-color: var(--accent);
            color: var(--text-light);
            background: var(--dark-card-hover);
            transform: translateY(-2px);
        }
        .subnav-tabs .tab.active {
            background: linear-gradient(135deg, var(--accent), #c0392b);
            border-color: var(--accent);
            color: #fff;
            box-shadow: 0 4px 20px var(--accent-glow);
        }

        /* ===== 攻略卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--dark-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-dark);
            transition: var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-8px);
            border-color: var(--border-accent);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
            background: var(--dark-card-hover);
        }
        .guide-card .card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .guide-card:hover .card-img img {
            transform: scale(1.08);
        }
        .guide-card .card-img .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(233, 69, 96, 0.85);
            backdrop-filter: blur(6px);
            font-size: 12px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .guide-card .card-img .card-tag.hot {
            background: rgba(245, 166, 35, 0.9);
        }
        .guide-card .card-img .card-tag.new {
            background: rgba(46, 204, 113, 0.85);
        }
        .guide-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-dim);
            margin-bottom: 10px;
        }
        .guide-card .card-body .card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .guide-card .card-body .card-meta span i {
            font-size: 12px;
        }
        .guide-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 10px;
            line-height: 1.3;
            transition: var(--transition);
        }
        .guide-card:hover .card-body h3 {
            color: var(--gold-light);
        }
        .guide-card .card-body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .guide-card .card-body .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-dark);
        }
        .guide-card .card-body .card-footer .read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .guide-card .card-body .card-footer .read-more i {
            font-size: 12px;
            transition: var(--transition);
        }
        .guide-card:hover .card-body .card-footer .read-more i {
            transform: translateX(4px);
        }
        .guide-card .card-body .card-footer .rating {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--gold);
            font-size: 13px;
        }

        /* ===== 攻略时间线 ===== */
        .timeline-section {
            background: var(--dark-surface);
            position: relative;
        }
        .timeline-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
        }
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 28px;
            width: 2px;
            background: linear-gradient(to bottom, var(--accent), var(--gold), transparent);
            opacity: 0.5;
        }
        .timeline-item {
            position: relative;
            padding-left: 70px;
            padding-bottom: 40px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item .tl-dot {
            position: absolute;
            left: 18px;
            top: 4px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--dark-card);
            border: 3px solid var(--accent);
            box-shadow: 0 0 20px var(--accent-glow);
            z-index: 2;
        }
        .timeline-item .tl-dot.gold {
            border-color: var(--gold);
            box-shadow: 0 0 20px rgba(245, 166, 35, 0.3);
        }
        .timeline-item .tl-dot.green {
            border-color: #2ecc71;
            box-shadow: 0 0 20px rgba(46, 204, 113, 0.3);
        }
        .timeline-item .tl-content {
            background: var(--dark-card);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            border: 1px solid var(--border-dark);
            transition: var(--transition);
        }
        .timeline-item .tl-content:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .timeline-item .tl-content .tl-date {
            font-size: 13px;
            color: var(--text-dim);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .timeline-item .tl-content .tl-date i {
            color: var(--accent);
        }
        .timeline-item .tl-content h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 6px;
        }
        .timeline-item .tl-content p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .timeline-item .tl-content .tl-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }
        .timeline-item .tl-content .tl-tags span {
            padding: 2px 12px;
            border-radius: 16px;
            background: rgba(233, 69, 96, 0.1);
            border: 1px solid var(--border-accent);
            font-size: 12px;
            color: var(--accent);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--dark-surface);
            position: relative;
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            padding: 32px 16px;
            background: var(--dark-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-dark);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            border-color: var(--border-accent);
            box-shadow: var(--shadow-md);
        }
        .stat-item .stat-number {
            font-size: 42px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent), var(--gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 15px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .stat-item .stat-icon {
            font-size: 28px;
            color: var(--text-dim);
            margin-bottom: 12px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--dark-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-dark);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-accent);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-light);
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-item .faq-question:hover {
            color: var(--gold-light);
        }
        .faq-item .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 14px;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            text-align: center;
            overflow: hidden;
            background: var(--dark-surface);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.08;
            transform: scale(1.05);
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .cta-section h2 .highlight {
            background: linear-gradient(135deg, var(--accent), var(--gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .cta-section p {
            font-size: 17px;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .cta-section .btn-cta-large {
            padding: 16px 48px;
            background: linear-gradient(135deg, var(--accent), #c0392b);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 8px 32px var(--accent-glow);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-cta-large:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 48px var(--accent-glow);
        }
        .cta-section .btn-cta-large:active {
            transform: translateY(0);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary);
            border-top: 1px solid var(--border-dark);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo .logo-icon-small {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent), var(--gold));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 900;
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-brand .social-links {
            display: flex;
            gap: 12px;
        }
        .footer-brand .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--dark-card);
            border: 1px solid var(--border-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 18px;
            transition: var(--transition);
        }
        .footer-brand .social-links a:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 8px 24px var(--accent-glow);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .footer-col ul li a i {
            font-size: 10px;
            color: var(--text-dim);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--gold-light);
            padding-left: 4px;
        }
        .footer-col ul li a:hover i {
            color: var(--accent);
        }
        .footer-col .footer-contact li {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-col .footer-contact li i {
            width: 20px;
            color: var(--accent);
            font-size: 14px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding: 24px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-dim);
        }
        .footer-bottom-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            font-size: 13px;
            color: var(--text-dim);
            transition: var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .hero-category h1 {
                font-size: 40px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .header-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-dark);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                box-shadow: var(--shadow-lg);
            }
            .header-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .header-nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
                border-radius: var(--radius-sm);
            }
            .header-nav a.active::after {
                display: none;
            }
            .header-nav a.active {
                background: rgba(233, 69, 96, 0.15);
            }
            .hamburger {
                display: flex;
            }
            .header-cta .btn-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .header-cta .btn-cta span {
                display: none;
            }
            .hero-category {
                min-height: 420px;
                padding: 120px 20px 60px;
            }
            .hero-category h1 {
                font-size: 32px;
            }
            .hero-category p {
                font-size: 16px;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .subnav-tabs {
                flex-wrap: nowrap;
                overflow-x: auto;
                justify-content: flex-start;
                padding-bottom: 8px;
                gap: 8px;
                -webkit-overflow-scrolling: touch;
            }
            .subnav-tabs .tab {
                flex-shrink: 0;
                padding: 8px 18px;
                font-size: 13px;
            }
            .timeline::before {
                left: 18px;
            }
            .timeline-item {
                padding-left: 50px;
                padding-bottom: 28px;
            }
            .timeline-item .tl-dot {
                left: 10px;
                width: 16px;
                height: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section .btn-cta-large {
                padding: 14px 32px;
                font-size: 16px;
            }
            .faq-item .faq-question {
                font-size: 15px;
                padding: 14px 18px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-category h1 {
                font-size: 26px;
            }
            .hero-category .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-category .hero-actions .btn-primary,
            .hero-category .hero-actions .btn-secondary {
                text-align: center;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item .stat-number {
                font-size: 28px;
            }
            .guide-card .card-body {
                padding: 16px 18px 20px;
            }
            .guide-card .card-body h3 {
                font-size: 18px;
            }
            .header-logo {
                font-size: 18px;
            }
            .header-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }
            .footer {
                padding: 40px 0 0;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }