/* roulang page: index */
:root {
  --primary: #06b6d4;
  --primary-light: #22d3ee;
  --primary-dark: #0891b2;
  --secondary: #8b5cf6;
  --secondary-light: #a78bfa;
  --accent: #f472b6;
  --accent-light: #f9a8d4;
  --bg-dark: #0b0f1a;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --bg-elevated: #1e293b;
  --bg-input: #1a2332;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: #1e3a5f;
  --border-light: #2d4a6f;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 30px rgba(6,182,212,0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --container-max: 1200px;
  --header-top-height: 40px;
  --nav-height: 70px;
}

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

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

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

a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-light); }

img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
ul, ol { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section-pad { padding: 100px 0; }
.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto 56px auto;
  line-height: 1.7;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  letter-spacing: 0.3px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(6,182,212,0.3);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 35px rgba(6,182,212,0.45);
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--primary-light);
  border-color: var(--primary-light);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-3px);
}
.btn-white {
  background: #fff;
  color: var(--bg-dark);
  border-color: #fff;
}
.btn-white:hover {
  background: var(--primary-light);
  color: var(--bg-dark);
  transform: translateY(-3px);
}

.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.badge-primary {
  background: rgba(6,182,212,0.2);
  color: var(--primary-light);
  border: 1px solid rgba(6,182,212,0.3);
}
.badge-secondary {
  background: rgba(139,92,246,0.2);
  color: var(--secondary-light);
  border: 1px solid rgba(139,92,246,0.3);
}
.badge-accent {
  background: rgba(244,114,182,0.2);
  color: var(--accent-light);
  border: 1px solid rgba(244,114,182,0.3);
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 32px 28px;
  transition: var(--transition);
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

/* ===== HEADER TOP ===== */
.header-top {
  background: rgba(11,15,26,0.95);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-top-height);
  display: flex;
  align-items: center;
  position: relative;
  z-index: 1001;
}
.header-top .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-top__info {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.header-top__info i { color: var(--primary-light); margin-right: 6px; font-size: 0.7rem; }
.header-top__cta {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-top__cta .btn-top {
  font-size: 0.75rem;
  padding: 4px 18px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-weight: 600;
  transition: var(--transition);
}
.header-top__cta .btn-top:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(6,182,212,0.3);
}

/* ===== NAV ===== */
.main-nav {
  background: rgba(11,15,26,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  height: var(--nav-height);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}
.main-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-logo {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo i { font-size: 1.3rem; -webkit-text-fill-color: initial; color: var(--primary-light); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links a {
  color: var(--text-secondary);
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: rgba(6,182,212,0.1);
}
.nav-links a.active {
  color: var(--primary-light);
  background: rgba(6,182,212,0.15);
}
.nav-toggle {
  display: none;
  background: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.nav-toggle:hover { background: rgba(255,255,255,0.05); }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--bg-dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.35;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 40%, rgba(6,182,212,0.12) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 60%, rgba(139,92,246,0.10) 0%, transparent 50%);
  z-index: 1;
}
.hero .container {
  position: relative;
  z-index: 2;
  padding-top: 40px;
  padding-bottom: 60px;
}
.hero-badge {
  display: inline-block;
  padding: 6px 24px;
  border-radius: 50px;
  background: rgba(6,182,212,0.15);
  border: 1px solid rgba(6,182,212,0.25);
  color: var(--primary-light);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 1px;
}
.hero-title {
  font-size: 4.2rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff 30%, var(--primary-light) 60%, var(--secondary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 36px auto;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.hero-stat-item {
  text-align: center;
}
.hero-stat-item .num {
  font-size: 2.6rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.hero-stat-item .label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ===== FEATURES ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.feature-card {
  text-align: center;
  padding: 40px 28px;
}
.feature-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px auto;
  border-radius: 50%;
  background: rgba(6,182,212,0.1);
  border: 1px solid rgba(6,182,212,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--primary-light);
  transition: var(--transition);
}
.feature-card:hover .feature-icon {
  background: rgba(6,182,212,0.2);
  border-color: var(--primary);
  transform: scale(1.05);
}
.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== CATEGORY ===== */
.category-section {
  background: rgba(17,24,39,0.5);
}
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.category-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}
.category-card__img {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.category-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.category-card:hover .category-card__img img { transform: scale(1.05); }
.category-card__img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(11,15,26,0.6) 0%, transparent 60%);
}
.category-card__body {
  padding: 24px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.category-card__body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.category-card__body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  flex: 1;
  margin-bottom: 16px;
}
.category-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}
.category-card__meta .tag {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.category-card__meta .link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-light);
}
.category-card__meta .link i { font-size: 0.75rem; margin-left: 4px; }

/* ===== LATEST NEWS ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.news-card {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 20px;
  transition: var(--transition);
}
.news-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}
.news-card__thumb {
  width: 120px;
  min-height: 90px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}
.news-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-card__info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.news-card__info .badge { align-self: flex-start; }
.news-card__info h4 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card__info h4 a { color: var(--text-primary); }
.news-card__info h4 a:hover { color: var(--primary-light); }
.news-card__info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}
.news-card__info .meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
}
.news-card__info .meta i { margin-right: 4px; font-size: 0.65rem; }

.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
  font-size: 1rem;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px dashed var(--border-color);
}

/* ===== STATS ===== */
.stats-section {
  background: linear-gradient(135deg, rgba(6,182,212,0.05), rgba(139,92,246,0.05));
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item {
  padding: 32px 16px;
}
.stat-item .num {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-item .label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 6px;
  font-weight: 500;
}
.stat-item .icon {
  font-size: 2rem;
  color: var(--primary-light);
  margin-bottom: 12px;
  opacity: 0.6;
}

/* ===== PROCESS ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-grid::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
  opacity: 0.3;
  z-index: 0;
}
.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 24px 16px;
}
.step-num {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px auto;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  color: var(--primary-light);
  transition: var(--transition);
}
.process-step:hover .step-num {
  border-color: var(--primary);
  background: rgba(6,182,212,0.15);
  box-shadow: 0 0 30px rgba(6,182,212,0.2);
}
.process-step h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.process-step p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 780px;
  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: var(--transition);
}
.faq-item:hover {
  border-color: var(--border-light);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
  gap: 16px;
}
.faq-question:hover { color: var(--primary-light); }
.faq-question i {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item.active .faq-question i { transform: rotate(180deg); color: var(--primary-light); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px 24px;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, rgba(6,182,212,0.08), rgba(139,92,246,0.08));
  border-top: 1px solid var(--border-color);
  text-align: center;
}
.cta-block {
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  background: radial-gradient(ellipse at center, rgba(6,182,212,0.06) 0%, transparent 70%);
}
.cta-block h2 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.cta-block p {
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 28px auto;
  font-size: 1.05rem;
}
.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== FOOTER ===== */
.site-footer {
  background: rgba(11,15,26,0.95);
  border-top: 1px solid var(--border-color);
  padding: 48px 0 32px 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}
.footer-brand .nav-logo { font-size: 1.4rem; margin-bottom: 12px; display: inline-flex; }
.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 0.88rem;
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--primary-light); }

/* ===== MOBILE NAV ===== */
@media (max-width: 1024px) {
  .hero-title { font-size: 3.2rem; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid::before { display: none; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .header-top__info span { display: none; }
  .header-top__info i { font-size: 0.9rem; }

  .nav-links {
    position: fixed;
    top: var(--header-top-height);
    left: 0;
    right: 0;
    background: rgba(11,15,26,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
    z-index: 999;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links a {
    width: 100%;
    padding: 14px 20px;
    font-size: 1.05rem;
  }
  .nav-toggle { display: block; }

  .hero { min-height: 80vh; }
  .hero-title { font-size: 2.4rem; }
  .hero-desc { font-size: 1rem; }
  .hero-stats { gap: 24px; }
  .hero-stat-item .num { font-size: 2rem; }

  .section-pad { padding: 60px 0; }
  .section-title { font-size: 1.8rem; }
  .section-subtitle { font-size: 0.95rem; margin-bottom: 36px; }

  .features-grid { grid-template-columns: 1fr; gap: 20px; }
  .category-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .news-card { flex-direction: column; }
  .news-card__thumb { width: 100%; height: 160px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-item .num { font-size: 2.4rem; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-block h2 { font-size: 1.8rem; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 1.9rem; }
  .hero-desc { font-size: 0.9rem; }
  .hero-actions .btn { padding: 12px 24px; font-size: 0.85rem; }
  .hero-stats { gap: 16px; }
  .hero-stat-item .num { font-size: 1.6rem; }
  .hero-stat-item .label { font-size: 0.75rem; }
  .section-title { font-size: 1.5rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .stat-item .num { font-size: 2rem; }
  .process-grid { grid-template-columns: 1fr; }
  .news-card__thumb { height: 140px; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-block h2 { font-size: 1.5rem; }
  .cta-block p { font-size: 0.9rem; }
}

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --secondary: #fd79a8;
            --accent: #00cec9;
            --bg-dark: #0a0a1a;
            --bg-card: #12122a;
            --bg-section: #0e0e24;
            --bg-hero: #0a0a1a;
            --text-white: #f0f0ff;
            --text-light: #b0b0d0;
            --text-muted: #7070a0;
            --border-color: #2a2a5a;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(108, 92, 231, 0.18);
            --shadow-hover: 0 14px 40px rgba(108, 92, 231, 0.30);
            --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: 1rem; outline: none; border: none; }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 10, 26, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(42, 42, 90, 0.5);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(10, 10, 26, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
        }
        .main-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
            transition: var(--transition);
        }
        .nav-logo i { color: var(--accent); font-size: 1.5rem; }
        .nav-logo:hover { color: var(--accent); }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--text-white);
            background: rgba(108, 92, 231, 0.12);
        }
        .nav-links a.active {
            color: var(--text-white);
            background: rgba(108, 92, 231, 0.20);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            color: var(--text-white);
            font-size: 1.5rem;
            padding: 8px 12px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover { background: rgba(255,255,255,0.06); }

        /* ===== Article Hero / Banner ===== */
        .article-hero {
            padding: 120px 0 60px;
            background: var(--bg-hero);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            min-height: 300px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10,10,26,0.88) 0%, rgba(10,10,26,0.70) 100%);
            z-index: 1;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.90rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-hero .breadcrumb a {
            color: var(--primary-light);
        }
        .article-hero .breadcrumb a:hover { color: var(--secondary); }
        .article-hero .breadcrumb span { color: var(--text-light); }
        .article-hero .breadcrumb i { font-size: 0.7rem; color: var(--text-muted); }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            max-width: 900px;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            font-size: 0.95rem;
            color: var(--text-muted);
        }
        .article-meta .badge {
            background: rgba(108, 92, 231, 0.25);
            color: var(--primary-light);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            border: 1px solid rgba(108, 92, 231, 0.30);
        }
        .article-meta i { margin-right: 6px; color: var(--accent); }

        /* ===== Article Content ===== */
        .article-main {
            padding: 60px 0 80px;
            flex: 1;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 50px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 40px 44px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-light);
        }
        .article-body .content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 36px 0 16px;
        }
        .article-body .content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-white);
            margin: 28px 0 12px;
        }
        .article-body .content p {
            margin-bottom: 18px;
        }
        .article-body .content ul {
            list-style: disc;
            padding-left: 24px;
            margin-bottom: 18px;
        }
        .article-body .content ul li {
            margin-bottom: 8px;
        }
        .article-body .content a {
            color: var(--accent);
            border-bottom: 1px solid transparent;
        }
        .article-body .content a:hover {
            border-bottom-color: var(--accent);
        }
        .article-body .content img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            background: rgba(108, 92, 231, 0.08);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .article-not-found h2 {
            font-size: 1.8rem;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .article-not-found .btn {
            display: inline-block;
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i { color: var(--accent); }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(42, 42, 90, 0.4);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-light);
            font-size: 0.92rem;
            transition: var(--transition);
        }
        .sidebar-list a:hover { color: var(--text-white); }
        .sidebar-list a i { margin-top: 3px; color: var(--primary-light); font-size: 0.8rem; }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .sidebar-tags .tag {
            background: rgba(108, 92, 231, 0.12);
            color: var(--primary-light);
            padding: 5px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            border: 1px solid rgba(108, 92, 231, 0.20);
            transition: var(--transition);
            cursor: default;
        }
        .sidebar-tags .tag:hover {
            background: rgba(108, 92, 231, 0.22);
            border-color: var(--primary);
        }
        .sidebar-cta {
            background: linear-gradient(135deg, rgba(108,92,231,0.15), rgba(0,206,201,0.10));
            border: 1px solid rgba(108,92,231,0.25);
        }
        .sidebar-cta p {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 18px;
        }
        .sidebar-cta .btn {
            width: 100%;
            justify-content: center;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.30);
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108, 92, 231, 0.40);
            color: var(--text-white);
        }
        .btn:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary-light);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: rgba(108, 92, 231, 0.15);
            border-color: var(--primary-light);
            color: var(--text-white);
            box-shadow: none;
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .btn-accent {
            background: var(--accent);
            color: #0a0a1a;
            box-shadow: 0 4px 16px rgba(0, 206, 201, 0.30);
        }
        .btn-accent:hover {
            background: #00b3b0;
            color: #0a0a1a;
            box-shadow: 0 8px 28px rgba(0, 206, 201, 0.40);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .nav-logo { font-size: 1.3rem; margin-bottom: 14px; display: inline-flex; }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.92rem;
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul a {
            color: var(--text-muted);
            font-size: 0.90rem;
            transition: var(--transition);
        }
        .footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: var(--text-muted);
            font-size: 1.3rem;
            transition: var(--transition);
        }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .article-hero h1 { font-size: 2.2rem; }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(10, 10, 26, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px 20px 24px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: 0 20px 60px rgba(0,0,0,0.6);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 20px;
                font-size: 1.05rem;
            }
            .nav-links a.active::after { display: none; }
            .nav-toggle { display: block; }

            .article-hero { padding: 100px 0 40px; min-height: auto; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-meta { gap: 12px; font-size: 0.85rem; }
            .article-body { padding: 24px 20px; }
            .article-body .content { font-size: 0.98rem; }
            .article-sidebar { grid-template-columns: 1fr; }

            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .container { padding: 0 16px; }
        }

        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.4rem; }
            .article-body { padding: 18px 14px; }
            .article-body .content { font-size: 0.92rem; }
            .sidebar-card { padding: 20px 16px; }
            .btn { padding: 10px 22px; font-size: 0.88rem; }
            .nav-logo { font-size: 1.1rem; }
            .nav-logo i { font-size: 1.2rem; }
        }

        /* ===== Accessibility ===== */
        a:focus-visible, button:focus-visible, .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }

        /* ===== Loading / Transition ===== */
        .fade-in { animation: fadeUp 0.6s ease both; }
        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(24px); }
            to { opacity: 1; transform: translateY(0); }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #00d4ff;
            --primary-dim: #0099bb;
            --secondary: #7c3aed;
            --secondary-dim: #5b21b6;
            --accent: #00ff88;
            --accent-dim: #00cc6a;
            --bg-dark: #0a0a1a;
            --bg-mid: #12122a;
            --bg-card: #1a1a3a;
            --bg-card-hover: #222255;
            --bg-nav: #0d0d24;
            --text-white: #ffffff;
            --text-light: #e0e0ff;
            --text-muted: #a0a0c0;
            --text-dim: #707090;
            --border-glow: rgba(0, 212, 255, 0.25);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.15);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-hover: 0 12px 48px rgba(0, 212, 255, 0.20);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container-max: 1200px;
            --header-top-h: 40px;
            --nav-h: 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);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: transparent;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
        }
        h1 {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-light);
        }
        p:last-child {
            margin-bottom: 0;
        }

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

        /* ===== 顶部信息条 ===== */
        .header-top {
            background: rgba(10, 10, 26, 0.95);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--header-top-h);
            display: flex;
            align-items: center;
            font-size: 13px;
            color: var(--text-dim);
            position: relative;
            z-index: 1001;
        }
        .header-top .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .header-top .domain-badge {
            color: var(--text-muted);
            letter-spacing: 0.3px;
        }
        .header-top .domain-badge i {
            color: var(--primary);
            margin-right: 6px;
            font-size: 11px;
        }
        .header-top .top-cta {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-top .top-cta span {
            color: var(--text-dim);
        }
        .header-top .top-cta a {
            color: var(--accent);
            font-weight: 600;
            font-size: 13px;
        }
        .header-top .top-cta a:hover {
            color: var(--primary);
        }
        @media (max-width: 640px) {
            .header-top .top-cta span {
                display: none;
            }
            .header-top .domain-badge span {
                display: none;
            }
        }

        /* ===== 主导航 ===== */
        .main-nav {
            background: rgba(13, 13, 36, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--nav-h);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: var(--transition);
        }
        .main-nav.scrolled {
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
            background: rgba(13, 13, 36, 0.98);
        }
        .main-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            transition: var(--transition);
        }
        .nav-logo i {
            color: var(--primary);
            font-size: 1.5rem;
            filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.4));
        }
        .nav-logo:hover {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-links a.active {
            color: var(--primary);
            background: rgba(0, 212, 255, 0.08);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(0, 212, 255, 0.5);
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-light);
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.10);
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-h);
                left: 0;
                right: 0;
                background: rgba(13, 13, 36, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border-subtle);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                border-left: 3px solid var(--primary);
                background: rgba(0, 212, 255, 0.06);
            }
            .nav-toggle {
                display: block;
            }
        }

        /* ===== Banner / Hero ===== */
        .page-banner {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(160deg, #0a0a1a 0%, #12122a 40%, #1a0a3a 100%);
            overflow: hidden;
            padding: 80px 0 60px;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.20;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 10, 26, 0.70) 0%, rgba(10, 10, 26, 0.30) 50%, rgba(10, 10, 26, 0.80) 100%);
            z-index: 1;
        }
        .page-banner .banner-glow {
            position: absolute;
            top: -20%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text-white) 40%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
        }
        .page-banner p {
            max-width: 640px;
            margin: 0 auto;
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .page-banner .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 255, 0.10);
            border: 1px solid rgba(0, 212, 255, 0.20);
            border-radius: 100px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .page-banner .banner-badge i {
            font-size: 14px;
        }
        @media (max-width: 768px) {
            .page-banner {
                min-height: 280px;
                padding: 60px 0 40px;
            }
            .page-banner p {
                font-size: 1rem;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-mid);
        }
        .section-dark {
            background: var(--bg-dark);
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-header h2 {
            margin-bottom: 12px;
        }
        .section-header .subtitle {
            color: var(--text-muted);
            font-size: 1.05rem;
        }
        .section-header .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(124, 58, 237, 0.12);
            border: 1px solid rgba(124, 58, 237, 0.25);
            border-radius: 100px;
            padding: 4px 16px;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 40px;
            }
        }

        /* ===== 卡片网格 ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }
        @media (max-width: 480px) {
            .grid-4 {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 赛事卡片 ===== */
        .tournament-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .tournament-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-hover);
            background: var(--bg-card-hover);
        }
        .tournament-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
            background: var(--bg-mid);
        }
        .tournament-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .tournament-card:hover .card-img img {
            transform: scale(1.05);
        }
        .tournament-card .card-img .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.10);
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .tournament-card .card-img .card-level {
            position: absolute;
            top: 16px;
            right: 16px;
            background: rgba(0, 212, 255, 0.15);
            border: 1px solid rgba(0, 212, 255, 0.25);
            padding: 4px 12px;
            border-radius: 100px;
            font-size: 11px;
            font-weight: 600;
            color: var(--primary);
        }
        .tournament-card .card-body {
            padding: 24px 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .tournament-card .card-body h3 {
            margin-bottom: 10px;
            font-size: 1.3rem;
        }
        .tournament-card .card-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            flex: 1;
            margin-bottom: 16px;
        }
        .tournament-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 18px;
            font-size: 13px;
            color: var(--text-dim);
        }
        .tournament-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .tournament-card .card-meta i {
            color: var(--primary);
            font-size: 14px;
        }
        .tournament-card .card-btn {
            align-self: flex-start;
            padding: 10px 28px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 14px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--text-white);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .tournament-card .card-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 212, 255, 0.30);
        }
        .tournament-card .card-btn i {
            font-size: 13px;
        }
        @media (max-width: 768px) {
            .tournament-card .card-img {
                height: 160px;
            }
            .tournament-card .card-body {
                padding: 18px 18px 22px;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 12px;
            filter: drop-shadow(0 0 12px rgba(0, 212, 255, 0.3));
        }
        .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.1;
            margin-bottom: 4px;
        }
        .stat-card .stat-number .suffix {
            font-size: 1.4rem;
            color: var(--primary);
        }
        .stat-card .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card {
                padding: 24px 12px;
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
        }

        /* ===== 赛事流程 ===== */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            counter-reset: step;
        }
        .flow-step {
            text-align: center;
            padding: 28px 12px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            position: relative;
            transition: var(--transition);
        }
        .flow-step:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .flow-step .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-white);
            margin: 0 auto 14px;
            box-shadow: 0 0 24px rgba(0, 212, 255, 0.25);
        }
        .flow-step h4 {
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .flow-step p {
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-bottom: 0;
        }
        .flow-step .step-arrow {
            display: none;
        }
        @media (min-width: 1025px) {
            .flow-step {
                position: relative;
            }
            .flow-step:not(:last-child)::after {
                content: '\f054';
                font-family: 'Font Awesome 6 Free';
                font-weight: 900;
                position: absolute;
                right: -18px;
                top: 50%;
                transform: translateY(-50%);
                color: var(--primary);
                font-size: 14px;
                opacity: 0.4;
                pointer-events: none;
            }
        }
        @media (max-width: 1024px) {
            .flow-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 640px) {
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 400px) {
            .flow-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 赛程时间线 ===== */
        .timeline {
            position: relative;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--secondary), transparent);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 32px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }
        .timeline-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 28px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--bg-dark);
            box-shadow: 0 0 0 2px var(--primary);
        }
        .timeline-item .tl-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .timeline-item .tl-date i {
            font-size: 14px;
        }
        .timeline-item h4 {
            font-size: 1.15rem;
            margin-bottom: 6px;
        }
        .timeline-item p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .timeline-item .tl-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 100px;
            font-size: 11px;
            font-weight: 600;
            background: rgba(0, 255, 136, 0.12);
            color: var(--accent);
            border: 1px solid rgba(0, 255, 136, 0.20);
            margin-top: 8px;
        }
        @media (max-width: 768px) {
            .timeline {
                padding-left: 32px;
            }
            .timeline-item {
                padding: 16px 18px;
            }
            .timeline-item::before {
                left: -26px;
                width: 12px;
                height: 12px;
            }
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-glow);
        }
        .faq-item .faq-q {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-white);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            color: var(--primary);
        }
        .faq-item .faq-q i {
            transition: var(--transition);
            color: var(--text-muted);
            font-size: 14px;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-a {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        @media (max-width: 768px) {
            .faq-item .faq-q {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-item .faq-a {
                padding: 0 18px 16px;
                font-size: 0.9rem;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 80px 0;
            text-align: center;
            background: linear-gradient(160deg, #0a0a1a 0%, #1a0a3a 50%, #0a0a1a 100%);
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            margin-bottom: 16px;
        }
        .cta-section p {
            max-width: 560px;
            margin: 0 auto 32px;
            color: var(--text-muted);
            font-size: 1.05rem;
        }
        .cta-btns {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .btn-primary {
            padding: 14px 40px;
            border-radius: 100px;
            font-weight: 700;
            font-size: 16px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--text-white);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 24px rgba(0, 212, 255, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0, 212, 255, 0.35);
            color: var(--text-white);
        }
        .btn-secondary {
            padding: 14px 40px;
            border-radius: 100px;
            font-weight: 700;
            font-size: 16px;
            background: transparent;
            color: var(--text-light);
            border: 1px solid var(--border-subtle);
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(0, 212, 255, 0.05);
            transform: translateY(-3px);
        }
        @media (max-width: 640px) {
            .cta-section {
                padding: 56px 0;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
                padding: 14px 24px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #08081a;
            border-top: 1px solid var(--border-subtle);
            padding: 60px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .nav-logo {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.92rem;
            color: var(--text-dim);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            color: var(--text-white);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-dim);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-dim);
        }
        .footer-bottom a {
            color: var(--text-dim);
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner p {
                font-size: 0.92rem;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .stat-card .stat-icon {
                font-size: 1.5rem;
            }
            .tournament-card .card-body h3 {
                font-size: 1.1rem;
            }
            .flow-step {
                padding: 20px 10px;
            }
            .flow-step .step-num {
                width: 36px;
                height: 36px;
                font-size: 0.9rem;
            }
        }

        /* ===== 工具类 ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }