/* roulang page: index */
:root {
  --bg-void: #060a12;
  --bg-body: #0b1020;
  --bg-card: #111a2d;
  --bg-card-hover: #172238;
  --primary: #00e5ff;
  --secondary: #ff2d95;
  --accent: #8b5cf6;
  --text-main: #e8ecf4;
  --text-dim: #9aa7bd;
  --text-weak: #5f6c80;
  --border: rgba(0, 229, 255, 0.14);
  --border-soft: rgba(255, 255, 255, 0.06);
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 32px rgba(0, 229, 255, 0.10);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: color 0.25s ease; }
a:hover { color: #66efff; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

.grid-container { max-width: 1200px; padding: 0 24px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  transition: all 0.3s ease;
  line-height: 1.3;
}
.btn i { font-size: 14px; }
.btn-primary {
  background: linear-gradient(135deg, #00e5ff, #00c4ff);
  color: #06111f;
  box-shadow: 0 4px 20px rgba(0, 229, 255, 0.25);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(0, 229, 255, 0.4); color: #06111f; }
.btn-ghost {
  background: transparent;
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-3px); }

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  background: rgba(8, 12, 22, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-soft);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 0.5px;
}
.brand-logo:hover { color: var(--primary); }
.logo-icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: #0a0e17;
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.3);
}
.logo-text em { color: var(--primary); font-style: normal; }

.main-nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 600;
  position: relative;
  transition: all 0.3s ease;
}
.nav-link i { font-size: 13px; }
.nav-link:hover { color: var(--primary); background: rgba(0, 229, 255, 0.06); }
.nav-link.active {
  color: var(--primary);
  background: rgba(0, 229, 255, 0.08);
  box-shadow: inset 0 0 0 1px var(--border);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%;
  transform: translateX(-50%);
  width: 20px; height: 3px;
  border-radius: 2px;
  background: var(--primary);
  box-shadow: 0 0 12px var(--primary);
}
.nav-actions { display: flex; align-items: center; gap: 12px; }

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-soft);
  color: var(--text-main);
  width: 44px; height: 44px;
  border-radius: 12px;
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}
.menu-toggle:hover { border-color: var(--primary); color: var(--primary); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6, 10, 18, 0.94) 30%, rgba(6, 10, 18, 0.65) 70%, rgba(10, 14, 23, 0.9) 100%);
}
.hero .grid-container { position: relative; z-index: 2; }
.hero-content { max-width: 760px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}
.hero h1 {
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
  background: linear-gradient(135deg, #ffffff, #a0eaff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 560px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 48px; }
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--border-soft);
}
.stat-item { display: flex; flex-direction: column; gap: 2px; }
.stat-num {
  font-size: 30px;
  font-weight: 900;
  color: var(--primary);
  text-shadow: 0 0 24px rgba(0, 229, 255, 0.4);
}
.stat-label { font-size: 13px; color: var(--text-weak); }

/* ===== 通用板块 ===== */
.section { padding: 90px 0; }
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}
.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 12px;
  color: #f0f4ff;
}
.section-head p { color: var(--text-dim); font-size: 15px; line-height: 1.8; }

/* ===== 特色卡片 ===== */
.features-section { background: var(--bg-void); position: relative; }
.features-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse at center, rgba(0, 229, 255, 0.06), transparent 70%);
  pointer-events: none;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  height: 100%;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border);
  box-shadow: var(--shadow-glow);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 54px; height: 54px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  margin-bottom: 22px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(139, 92, 246, 0.15));
  color: var(--primary);
}
.feature-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 12px; color: #f0f4ff; }
.feature-card p { color: var(--text-dim); font-size: 14px; line-height: 1.8; }

/* ===== 分类卡片 ===== */
.categories-section { background: var(--bg-body); }
.category-card {
  display: block;
  position: relative;
  height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-soft);
  transition: all 0.35s ease;
  margin-bottom: 20px;
}
.category-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.category-card:hover img { transform: scale(1.06); }
.cat-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 8, 16, 0.95) 20%, rgba(5, 8, 16, 0.35) 60%, transparent);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 26px;
  transition: background 0.3s ease;
}
.category-card:hover .cat-overlay { background: linear-gradient(to top, rgba(5, 8, 16, 0.98) 20%, rgba(5, 8, 16, 0.45) 65%, rgba(5, 8, 16, 0.2)); }
.cat-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: rgba(0, 229, 255, 0.15);
  border: 1px solid var(--border);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px;
  margin-bottom: 14px;
}
.cat-overlay h3 { font-size: 19px; font-weight: 800; color: #fff; margin-bottom: 6px; }
.cat-overlay p { font-size: 13px; color: rgba(255, 255, 255, 0.7); line-height: 1.6; margin-bottom: 12px; }
.cat-link { font-size: 13px; color: var(--primary); font-weight: 700; display: inline-flex; align-items: center; gap: 6px; }

/* ===== 资讯列表 ===== */
.news-section { background: var(--bg-void); }
.news-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-item {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.news-item:hover {
  border-color: var(--border);
  transform: translateX(6px);
  box-shadow: var(--shadow-glow);
}
.news-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 3px; height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.news-item:hover::before { opacity: 1; }
.news-cat {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid var(--border);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.news-title { font-size: 17px; font-weight: 700; color: #f0f4ff; margin-bottom: 6px; line-height: 1.5; }
.news-item:hover .news-title { color: var(--primary); }
.news-summary { font-size: 13px; color: var(--text-dim); line-height: 1.7; margin-bottom: 8px; }
.news-date { font-size: 12px; color: var(--text-weak); display: flex; align-items: center; gap: 6px; }
.news-date i { font-size: 11px; }
.no-news { text-align: center; color: var(--text-dim); padding: 40px 0; }

/* ===== 数据统计 ===== */
.stats-section {
  background:
    linear-gradient(135deg, rgba(139, 92, 246, 0.08), rgba(0, 229, 255, 0.05)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  position: relative;
}
.stats-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(6, 10, 18, 0.88);
  z-index: 0;
}
.stats-section .grid-container { position: relative; z-index: 2; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-block {
  text-align: center;
  padding: 40px 20px;
  background: rgba(17, 26, 45, 0.7);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}
.stat-block:hover { border-color: var(--border); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.stat-block i { font-size: 28px; color: var(--primary); margin-bottom: 12px; display: block; }
.stat-block .num { font-size: 36px; font-weight: 900; color: #fff; line-height: 1.2; }
.stat-block .num span { color: var(--primary); }
.stat-block .label { font-size: 13px; color: var(--text-dim); margin-top: 6px; }

/* ===== 图文展示 ===== */
.showcase-section { background: var(--bg-body); }
.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}
.showcase-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-card);
}
.showcase-media img { width: 100%; height: 100%; object-fit: cover; min-height: 340px; }
.showcase-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(0, 229, 255, 0.08));
  pointer-events: none;
}
.showcase-content h2 { font-size: 28px; font-weight: 900; margin-bottom: 16px; color: #f0f4ff; }
.showcase-content p { color: var(--text-dim); font-size: 15px; line-height: 1.9; margin-bottom: 24px; }
.step-list { display: flex; flex-direction: column; gap: 16px; }
.step-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: all 0.3s ease;
}
.step-item:hover { border-color: var(--border); transform: translateX(4px); }
.step-num {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #06111f;
  font-weight: 900;
  font-size: 15px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.step-item h4 { font-size: 15px; font-weight: 700; color: #f0f4ff; margin-bottom: 4px; }
.step-item p { font-size: 13px; color: var(--text-dim); margin: 0; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-void); }
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item:hover { border-color: var(--border); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 26px;
  font-size: 16px;
  font-weight: 700;
  color: #f0f4ff;
  display: flex;
  align-items: center;
  gap: 14px;
  user-select: none;
  transition: color 0.3s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary); }
.faq-item summary::before {
  content: '\f059';
  font-family: 'Font Awesome 6 Free';
  font-weight: 400;
  color: var(--primary);
  font-size: 18px;
}
.faq-item[open] summary { color: var(--primary); }
.faq-item[open] summary::after {
  content: '\f106';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-left: auto;
  color: var(--primary);
}
.faq-item summary::after {
  content: '\f107';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-left: auto;
  color: var(--text-weak);
  transition: color 0.3s;
}
.faq-item p {
  padding: 0 26px 22px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.9;
}

/* ===== CTA ===== */
.cta-section {
  background: url('/assets/images/backpic/back-3.webp') center/cover fixed;
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}
.cta-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6, 10, 18, 0.92), rgba(17, 26, 45, 0.85));
  z-index: 0;
}
.cta-box {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  padding: 56px 48px;
  background: rgba(17, 26, 45, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-glow);
}
.cta-box h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 900; margin-bottom: 14px; color: #fff; }
.cta-box p { color: var(--text-dim); font-size: 15px; margin-bottom: 28px; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-void);
  border-top: 1px solid var(--border-soft);
  padding: 60px 0 32px;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 48px;
}
.footer-brand .footer-logo {
  font-size: 20px;
  font-weight: 900;
  color: #f0f4ff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.footer-brand .footer-logo i {
  color: var(--primary);
  font-size: 22px;
}
.footer-brand p { color: var(--text-weak); font-size: 13px; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-links a {
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
  transition: all 0.3s ease;
}
.footer-links a:hover { color: var(--primary); background: rgba(0, 229, 255, 0.06); }
.footer-copy {
  border-top: 1px solid var(--border-soft);
  padding-top: 24px;
  text-align: center;
  color: var(--text-weak);
  font-size: 12px;
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-grid { grid-template-columns: 1fr; gap: 40px; }
  .section { padding: 70px 0; }
  .hero { padding: 120px 0 60px; }
}

@media screen and (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(8, 12, 22, 0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  }
  .main-nav.open { display: flex; }
  .nav-link { padding: 14px 16px; border-radius: 12px; justify-content: center; }
  .menu-toggle { display: flex; }
  .hero { min-height: 540px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .cta-box { padding: 40px 24px; }
  .footer-content { flex-direction: column; text-align: center; }
}

@media screen and (max-width: 520px) {
  .grid-container { padding: 0 16px; }
  .header-inner { height: 64px; }
  .logo-text { font-size: 17px; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
  .stat-num { font-size: 24px; }
  .feature-card { padding: 28px 20px; }
  .cat-overlay { padding: 20px; }
  .news-item { padding: 20px; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 36px; }
}

/* roulang page: category1 */
:root {
  --primary: #00e5ff;
  --primary-glow: rgba(0, 229, 255, 0.35);
  --secondary: #7c4dff;
  --accent: #ff2b8f;
  --bg-deep: #070b14;
  --bg-dark: #0b111e;
  --bg-card: #101827;
  --bg-card-hover: #16203a;
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.14);
  --text-main: #e8ecf4;
  --text-weak: #8b95a7;
  --text-muted: #5b6472;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 40px rgba(0, 229, 255, 0.12);
  --transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul,
ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

.grid-container {
  max-width: 1200px;
}

/* ========== HEADER / NAV ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 11, 20, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  position: relative;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  white-space: nowrap;
  flex-shrink: 0;
}

.brand-logo i {
  color: var(--primary);
  font-size: 1.7rem;
  filter: drop-shadow(0 0 10px var(--primary-glow));
}

.brand-logo span {
  color: var(--primary);
  font-weight: 700;
}

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

.nav-link {
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 7px;
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.nav-link i {
  font-size: 0.9rem;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-1px);
}

.nav-link.active {
  color: var(--primary);
  background: rgba(0, 229, 255, 0.12);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.12), inset 0 0 0 1px rgba(0, 229, 255, 0.2);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
}

.menu-toggle:hover {
  background: rgba(0, 229, 255, 0.1);
  color: var(--primary);
}

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(7, 11, 20, 0.94) 0%, rgba(13, 20, 35, 0.82) 50%, rgba(7, 11, 20, 0.88) 100%), url('/assets/images/backpic/back-1.webp') center 30% / cover no-repeat;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.14) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -120px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(124, 77, 255, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 90px 0 100px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.25);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease both;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  color: #fff;
  animation: fadeInUp 0.7s 0.1s ease both;
}

.hero h1 span {
  color: var(--primary);
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.3);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-weak);
  max-width: 640px;
  margin-bottom: 34px;
  line-height: 1.8;
  animation: fadeInUp 0.7s 0.2s ease both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.7s 0.3s ease both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #0b111e;
  box-shadow: 0 8px 30px rgba(0, 229, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(0, 229, 255, 0.4);
  color: #0b111e;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
}

.hero-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 36px;
  animation: fadeInUp 0.7s 0.4s ease both;
}

.hero-tags span {
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-weak);
  font-weight: 500;
  transition: var(--transition);
}

.hero-tags span:hover {
  color: var(--primary);
  border-color: rgba(0, 229, 255, 0.3);
  background: rgba(0, 229, 255, 0.06);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== STATS ========== */
.stats-section {
  padding: 70px 0;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  gap: 24px 0;
}

.stat-card {
  text-align: center;
  padding: 30px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 0 10px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.4s ease;
  border-radius: 3px 3px 0 0;
}

.stat-card:hover::after {
  width: 70%;
}

.stat-card:hover {
  border-color: rgba(0, 229, 255, 0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.stat-num {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  text-shadow: 0 0 20px var(--primary-glow);
}

.stat-num span {
  font-size: 1.6rem;
  color: var(--secondary);
}

.stat-label {
  margin-top: 8px;
  font-size: 0.95rem;
  color: var(--text-weak);
  font-weight: 500;
}

/* ========== MATCHES SECTION ========== */
.matches-section {
  padding: 100px 0;
  background: var(--bg-deep);
}

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.2);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  line-height: 1.3;
  color: #fff;
  margin-bottom: 14px;
}

.section-title em {
  color: var(--primary);
  font-style: normal;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-weak);
  line-height: 1.8;
}

.matches-grid {
  gap: 24px 0;
  margin-bottom: 20px;
}

.match-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
}

.match-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 229, 255, 0.25);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 229, 255, 0.08);
}

.match-cover-wrap {
  position: relative;
  height: 190px;
  overflow: hidden;
}

.match-cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.match-card:hover .match-cover-wrap img {
  transform: scale(1.06);
}

.match-cover-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, var(--bg-card) 100%);
}

.match-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 3;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.16);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.match-live {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 43, 143, 0.18);
  border: 1px solid rgba(255, 43, 143, 0.35);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
}

.match-live .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.4s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.8);
  }
}

.match-info {
  padding: 24px 24px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.match-league {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.match-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.match-title i {
  color: var(--primary);
  font-size: 1rem;
  margin: 0 4px;
}

.match-desc {
  font-size: 0.95rem;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
}

.match-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.match-meta .stat {
  display: flex;
  align-items: center;
  gap: 6px;
}

.match-meta .stat i {
  color: var(--primary);
  font-size: 0.8rem;
}

.match-time {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
}

.match-more-link {
  text-align: center;
  margin-top: 40px;
}

/* ========== PROCESS ========== */
.process-section {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg-dark), var(--bg-deep));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.process-steps {
  margin: 0 auto;
  max-width: 1000px;
}

.process-step {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  position: relative;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.process-step.animate {
  opacity: 1;
  transform: translateY(0);
}

.process-step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 30px;
  top: 68px;
  bottom: -10px;
  width: 2px;
  background: linear-gradient(180deg, rgba(0, 229, 255, 0.3), rgba(124, 77, 255, 0.2));
}

.process-icon {
  width: 60px;
  height: 60px;
  flex-shrink: 0;
  border-radius: 16px;
  background: var(--bg-card);
  border: 1px solid rgba(0, 229, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--primary);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.08);
  position: relative;
  z-index: 2;
}

.process-step .step-content {
  flex: 1;
}

.process-step .step-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.process-step .step-title .step-num {
  font-size: 0.8rem;
  color: var(--primary);
  background: rgba(0, 229, 255, 0.1);
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 1px;
}

.process-step .step-desc {
  font-size: 0.95rem;
  color: var(--text-weak);
  line-height: 1.8;
  max-width: 660px;
}

/* ========== ADVANTAGES ========== */
.adv-section {
  padding: 100px 0;
  background: var(--bg-deep);
}

.adv-grid {
  gap: 20px 0;
}

.adv-card {
  background: linear-gradient(145deg, var(--bg-card), #0d1524);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  margin: 0 8px;
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.adv-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.adv-card:hover::before {
  opacity: 1;
}

.adv-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 255, 0.25);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.adv-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 20px;
  transition: var(--transition);
}

.adv-card:hover .adv-icon {
  background: rgba(0, 229, 255, 0.18);
  box-shadow: 0 0 25px rgba(0, 229, 255, 0.2);
  transform: scale(1.05);
}

.adv-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.adv-card p {
  font-size: 0.92rem;
  color: var(--text-weak);
  line-height: 1.75;
}

/* ========== FAQ ========== */
.faq-section {
  padding: 100px 0;
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
}

.faq-list {
  max-width: 850px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(0, 229, 255, 0.2);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  background: none;
  width: 100%;
  text-align: left;
  transition: var(--transition);
}

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

.faq-question .faq-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--primary);
  transition: transform 0.4s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 26px 22px;
  font-size: 0.95rem;
  color: var(--text-weak);
  line-height: 1.85;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: -2px;
}

/* ========== CTA ========== */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(7, 11, 20, 0.92), rgba(11, 17, 30, 0.88)), url('/assets/images/backpic/back-2.webp') center 40% / cover no-repeat;
  border-bottom: 1px solid var(--border);
}

.cta-box {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  background: rgba(16, 24, 39, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0, 229, 255, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.cta-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.cta-title span {
  color: var(--primary);
}

.cta-desc {
  font-size: 1.05rem;
  color: var(--text-weak);
  line-height: 1.8;
  margin-bottom: 34px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-cta {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #0b111e;
  padding: 17px 40px;
  font-size: 1.05rem;
  border-radius: 999px;
  font-weight: 700;
  box-shadow: 0 10px 40px rgba(0, 229, 255, 0.25);
  transition: var(--transition);
}

.btn-cta:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 16px 50px rgba(0, 229, 255, 0.35);
  color: #0b111e;
}

/* ========== FOOTER ========== */
.site-footer {
  background: var(--bg-deep);
  padding: 60px 0 30px;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}

.footer-logo i {
  color: var(--primary);
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-weak);
  font-weight: 500;
}

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

.footer-copy {
  text-align: center;
  padding-top: 30px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-copy a {
  color: var(--text-muted);
}

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

/* ========== RESPONSIVE ========== */
@media screen and (max-width: 1024px) {
  .stat-num {
    font-size: 2.1rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 24px;
  }
}

@media screen and (max-width: 768px) {
  .header-inner {
    height: 64px;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(7, 11, 20, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px 20px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    transform: translateY(-120%);
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 999;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .main-nav.open {
    transform: translateY(0);
  }

  .nav-link {
    padding: 14px 18px;
    font-size: 1rem;
    border-radius: 10px;
  }

  .hero {
    min-height: 520px;
  }

  .hero-content {
    padding: 70px 0 80px;
  }

  .hero h1 {
    font-size: 2.1rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .btn {
    padding: 13px 24px;
    font-size: 0.95rem;
  }

  .hero-tags {
    gap: 8px;
  }

  .stats-section {
    padding: 50px 0;
  }

  .matches-section {
    padding: 70px 0;
  }

  .process-section {
    padding: 70px 0;
  }

  .process-step {
    flex-direction: column;
    gap: 14px;
    padding: 20px 0;
  }

  .process-step:not(:last-child)::before {
    left: 29px;
    top: 56px;
  }

  .adv-section {
    padding: 70px 0;
  }

  .faq-section {
    padding: 70px 0;
  }

  .cta-section {
    padding: 70px 0;
  }

  .cta-box {
    padding: 40px 24px;
  }

  .footer-links {
    gap: 14px;
  }
}

@media screen and (max-width: 520px) {
  .hero h1 {
    font-size: 1.7rem;
  }

  .hero-subtitle {
    font-size: 0.92rem;
  }

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

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

  .hero-tags {
    gap: 6px;
  }

  .hero-tags span {
    font-size: 0.78rem;
    padding: 5px 12px;
  }

  .stat-num {
    font-size: 1.8rem;
  }

  .stat-card {
    padding: 22px 14px;
    margin: 0 5px;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .section-desc {
    font-size: 0.95rem;
  }

  .match-cover-wrap {
    height: 160px;
  }

  .match-info {
    padding: 20px 18px 22px;
  }

  .match-title {
    font-size: 1.2rem;
  }

  .match-desc {
    font-size: 0.88rem;
  }

  .match-meta {
    flex-wrap: wrap;
    gap: 10px;
  }

  .process-icon {
    width: 50px;
    height: 50px;
    font-size: 1.1rem;
  }

  .process-step:not(:last-child)::before {
    left: 24px;
  }

  .adv-card {
    padding: 24px 18px;
    margin: 0 5px;
  }

  .faq-question {
    padding: 18px 18px;
    font-size: 0.95rem;
  }

  .faq-answer-inner {
    padding: 0 18px 18px;
  }

  .cta-box {
    padding: 36px 18px;
    border-radius: 18px;
  }

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

  .cta-actions .btn-cta {
    width: 100%;
    justify-content: center;
  }

  .footer-content {
    flex-direction: column;
    gap: 20px;
  }

  .footer-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

/* roulang page: article */
:root{
  --bg-dark:#0a0e17;
  --bg-deep:#070b12;
  --bg-card:#111827;
  --bg-soft:#0f1626;
  --primary:#00d4ff;
  --primary-2:#00b4d8;
  --secondary:#ff2d78;
  --accent:#8b5cf6;
  --text-main:#e8edf5;
  --text-sub:#a0aec0;
  --text-weak:#718096;
  --border:rgba(255,255,255,0.08);
  --border-primary:rgba(0,212,255,0.25);
  --radius:16px;
  --radius-sm:8px;
  --radius-lg:24px;
  --shadow:0 8px 32px rgba(0,0,0,0.4);
  --shadow-hover:0 16px 48px rgba(0,212,255,0.12);
  --shadow-primary:0 4px 24px rgba(0,212,255,0.25);
  --transition:all .3s ease;
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --header-h:72px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  background:var(--bg-dark);
  color:var(--text-main);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-2)}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit;cursor:pointer}
ul,ol{list-style-position:inside}
::selection{background:rgba(0,212,255,.25)}
/* 容器 */
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
/* ===== Header / Nav ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(10,14,23,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  box-shadow:0 4px 24px rgba(0,0,0,.35);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:var(--header-h);
  gap:24px;
}
.site-logo{
  font-size:1.35rem;
  font-weight:800;
  letter-spacing:.5px;
  color:#fff;
  display:inline-flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
}
.site-logo i{
  color:var(--primary);
  font-size:1.5rem;
  filter:drop-shadow(0 0 8px rgba(0,212,255,.6));
}
.site-logo:hover{color:#fff}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-link{
  padding:8px 15px;
  border-radius:999px;
  color:var(--text-sub);
  font-size:.92rem;
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:var(--transition);
  position:relative;
}
.nav-link i{font-size:.85rem;color:var(--text-weak);transition:var(--transition)}
.nav-link:hover{
  color:#fff;
  background:rgba(0,212,255,.08);
}
.nav-link:hover i{color:var(--primary)}
.nav-link.active{
  color:#fff;
  background:rgba(0,212,255,.14);
  box-shadow:inset 0 0 0 1px var(--border-primary),0 0 18px rgba(0,212,255,.12);
}
.nav-link.active i{color:var(--primary)}
.nav-toggle{
  display:none;
  background:none;
  border:1px solid var(--border);
  color:var(--text-main);
  width:42px;
  height:42px;
  border-radius:var(--radius-sm);
  font-size:1.2rem;
  transition:var(--transition);
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}
/* ===== Article Hero ===== */
.article-hero{
  position:relative;
  padding:80px 0 76px;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  border-bottom:1px solid var(--border);
}
.article-hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(7,11,18,.96) 0%,rgba(10,14,23,.78) 50%,rgba(7,11,18,.92) 100%);
  z-index:1;
}
.article-hero .grid-container{position:relative;z-index:2}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:.88rem;
  color:var(--text-sub);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-sub);transition:var(--transition)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-weak);font-size:.65rem}
.breadcrumb .current{color:var(--primary);font-weight:500}
.hero-line{
  width:72px;
  height:4px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  border-radius:999px;
  margin-bottom:20px;
  box-shadow:0 0 16px rgba(0,212,255,.4);
}
.article-hero h1{
  font-size:clamp(1.75rem,4vw,2.55rem);
  font-weight:800;
  line-height:1.32;
  color:#fff;
  max-width:920px;
  text-shadow:0 4px 16px rgba(0,0,0,.45);
  margin-bottom:0;
}
/* ===== Article Body ===== */
.article-body-wrap{
  padding:44px 0 16px;
}
.article-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:44px 48px 40px;
  box-shadow:var(--shadow);
}
.article-meta{
  display:flex;
  align-items:center;
  gap:22px;
  flex-wrap:wrap;
  margin-bottom:28px;
  padding-bottom:22px;
  border-bottom:1px solid var(--border);
}
.article-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 16px;
  border-radius:999px;
  background:rgba(0,212,255,.1);
  color:var(--primary);
  font-size:.8rem;
  font-weight:600;
  border:1px solid var(--border-primary);
}
.article-badge i{font-size:.75rem}
.meta-item{
  color:var(--text-sub);
  font-size:.88rem;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.meta-item i{color:var(--text-weak);font-size:.85rem}
.article-content{
  font-size:1.04rem;
  line-height:1.95;
  color:var(--text-main);
}
.article-content p{margin-bottom:1.45em}
.article-content h2{
  font-size:1.55rem;
  font-weight:800;
  margin:2em 0 .8em;
  color:#fff;
  position:relative;
  padding-left:16px;
  line-height:1.4;
}
.article-content h2::before{
  content:'';
  position:absolute;
  left:0;
  top:.35em;
  width:4px;
  height:.85em;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
  border-radius:999px;
}
.article-content h3{
  font-size:1.25rem;
  font-weight:700;
  margin:1.6em 0 .6em;
  color:#fff;
}
.article-content h4{
  font-size:1.1rem;
  font-weight:600;
  margin:1.3em 0 .5em;
  color:#e8edf5;
}
.article-content ul,.article-content ol{
  margin-bottom:1.45em;
  padding-left:1.35em;
}
.article-content li{margin-bottom:.45em}
.article-content blockquote{
  border-left:4px solid var(--primary);
  padding:14px 22px;
  background:rgba(0,212,255,.05);
  border-radius:0 12px 12px 0;
  font-style:italic;
  color:var(--text-sub);
  margin-bottom:1.45em;
}
.article-content blockquote p{margin-bottom:.4em}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{
  border-radius:12px;
  margin:1.5em 0;
  box-shadow:var(--shadow);
}
.article-content a{
  color:var(--primary);
  text-decoration:underline;
  text-underline-offset:4px;
}
.article-content a:hover{color:var(--primary-2)}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin-bottom:1.45em;
  font-size:.95rem;
}
.article-content th,.article-content td{
  padding:10px 14px;
  border:1px solid var(--border);
  text-align:left;
}
.article-content th{
  background:rgba(0,212,255,.06);
  color:#fff;
  font-weight:600;
}
.article-content code{
  background:rgba(0,212,255,.08);
  padding:2px 8px;
  border-radius:6px;
  font-size:.9em;
  color:var(--primary);
}
/* ===== Share ===== */
.article-share{
  margin-top:38px;
  padding-top:22px;
  border-top:1px solid var(--border);
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.article-share span{
  color:var(--text-sub);
  font-size:.9rem;
  font-weight:500;
}
.share-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:50%;
  border:1px solid var(--border);
  color:var(--text-sub);
  font-size:.98rem;
  transition:var(--transition);
  background:transparent;
  cursor:pointer;
}
.share-btn:hover{
  color:#fff;
  border-color:var(--primary);
  background:rgba(0,212,255,.1);
  box-shadow:0 0 14px rgba(0,212,255,.15);
  transform:translateY(-2px);
}
.share-btn i{pointer-events:none}
.share-btn.copied{
  color:var(--primary);
  border-color:var(--primary);
}
/* ===== Not Found ===== */
.not-found{
  text-align:center;
  padding:50px 20px;
}
.not-found i{
  font-size:3rem;
  color:var(--text-weak);
  margin-bottom:18px;
  display:inline-block;
}
.not-found h2{
  font-size:1.55rem;
  margin-bottom:12px;
  color:#fff;
}
.not-found p{
  color:var(--text-sub);
  margin-bottom:26px;
  line-height:1.8;
}
/* ===== Recommend ===== */
.recommend-section{
  padding:64px 0 56px;
}
.section-head{
  text-align:center;
  margin-bottom:44px;
}
.section-head h2{
  font-size:1.9rem;
  font-weight:800;
  color:#fff;
  margin-bottom:10px;
  line-height:1.3;
}
.section-head p{
  color:var(--text-sub);
  font-size:.98rem;
}
.rec-col{
  margin-bottom:22px;
}
.rec-card{
  display:block;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:var(--transition);
  height:100%;
}
.rec-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-hover);
  border-color:var(--border-primary);
}
.rec-card-img{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-soft);
}
.rec-card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.rec-card:hover .rec-card-img img{transform:scale(1.06)}
.rec-card-body{
  padding:20px 24px 24px;
}
.rec-card-body h3{
  font-size:1.15rem;
  font-weight:700;
  margin-bottom:8px;
  color:#fff;
  transition:var(--transition);
}
.rec-card:hover .rec-card-body h3{color:var(--primary)}
.rec-card-body p{
  color:var(--text-sub);
  font-size:.88rem;
  line-height:1.7;
  margin-bottom:14px;
}
.rec-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-size:.85rem;
  font-weight:600;
  transition:var(--transition);
}
.rec-link i{font-size:.75rem;transition:transform .3s ease}
.rec-card:hover .rec-link i{transform:translateX(4px)}
/* ===== FAQ ===== */
.faq-section{
  padding:64px 0;
  background:var(--bg-soft);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:24px 26px;
  margin-bottom:20px;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:var(--border-primary);
  box-shadow:var(--shadow-hover);
}
.faq-item h3{
  font-size:1rem;
  font-weight:700;
  color:#fff;
  margin-bottom:10px;
  display:flex;
  gap:10px;
  align-items:flex-start;
  line-height:1.5;
}
.faq-item h3 i{
  color:var(--primary);
  font-size:.9rem;
  margin-top:3px;
  flex-shrink:0;
}
.faq-item p{
  color:var(--text-sub);
  font-size:.9rem;
  line-height:1.85;
  padding-left:22px;
}
/* ===== CTA ===== */
.cta-section{
  position:relative;
  padding:76px 0;
  text-align:center;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
.cta-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:rgba(7,11,18,.86);
  z-index:1;
}
.cta-section .grid-container{
  position:relative;
  z-index:2;
}
.cta-section h2{
  font-size:2rem;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
  line-height:1.3;
}
.cta-section p{
  color:var(--text-sub);
  font-size:1.05rem;
  margin-bottom:30px;
  max-width:620px;
  margin-left:auto;
  margin-right:auto;
}
.primary-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 34px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;
  font-weight:700;
  font-size:1rem;
  border:none;
  cursor:pointer;
  transition:var(--transition);
  box-shadow:var(--shadow-primary);
}
.primary-btn:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 32px rgba(0,212,255,.4);
  color:#fff;
}
.primary-btn:active{
  transform:translateY(0);
  box-shadow:0 2px 12px rgba(0,212,255,.2);
}
.primary-btn:focus-visible{
  outline:3px solid rgba(0,212,255,.5);
  outline-offset:2px;
}
/* ===== Footer ===== */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--border);
  padding:52px 0 24px;
}
.footer-content{
  display:flex;
  justify-content:space-between;
  gap:40px;
  padding-bottom:34px;
  border-bottom:1px solid var(--border);
  flex-wrap:wrap;
}
.footer-brand{
  max-width:360px;
}
.footer-brand .footer-logo{
  font-size:1.25rem;
  font-weight:800;
  color:#fff;
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:12px;
}
.footer-logo i{
  color:var(--primary);
  font-size:1.35rem;
  filter:drop-shadow(0 0 6px rgba(0,212,255,.5));
}
.footer-brand p{
  color:var(--text-sub);
  font-size:.92rem;
  line-height:1.7;
}
.footer-links{
  display:flex;
  gap:22px;
  flex-wrap:wrap;
  align-items:flex-start;
  padding-top:6px;
}
.footer-links a{
  color:var(--text-sub);
  font-size:.92rem;
  font-weight:500;
  transition:var(--transition);
  padding:4px 0;
}
.footer-links a:hover{
  color:var(--primary);
}
.footer-copy{
  padding-top:22px;
  text-align:center;
  color:var(--text-weak);
  font-size:.85rem;
}
.footer-copy a{color:var(--text-weak);transition:var(--transition)}
.footer-copy a:hover{color:var(--primary)}
/* ===== Responsive ===== */
@media(max-width:1024px){
  .article-card{padding:36px 34px 34px}
  .recommend-section,.faq-section{padding:52px 0}
  .cta-section{padding:64px 0}
  .footer-brand{max-width:100%}
}
@media(max-width:900px){
  .nav-toggle{
    display:inline-flex;
  }
  .main-nav{
    display:none;
    position:absolute;
    top:var(--header-h);
    left:0;
    right:0;
    background:var(--bg-card);
    flex-direction:column;
    gap:4px;
    padding:16px 20px;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow);
  }
  .main-nav.open{
    display:flex;
  }
  .nav-link{
    padding:12px 18px;
    border-radius:10px;
    font-size:1rem;
  }
  .nav-link i{font-size:.95rem}
}
@media(max-width:768px){
  .article-hero{
    padding:56px 0 52px;
  }
  .article-hero h1{
    font-size:1.5rem;
  }
  .article-card{
    padding:26px 20px 28px;
  }
  .article-content{
    font-size:1rem;
  }
  .article-content h2{
    font-size:1.3rem;
  }
  .article-meta{
    gap:14px;
  }
  .section-head h2{
    font-size:1.5rem;
  }
  .cta-section h2{
    font-size:1.5rem;
  }
  .cta-section p{
    font-size:.95rem;
  }
  .footer-content{
    flex-direction:column;
    gap:20px;
  }
  .footer-links{
    gap:14px;
  }
}
@media(max-width:520px){
  .grid-container{
    padding-left:18px;
    padding-right:18px;
  }
  .site-logo{
    font-size:1.1rem;
  }
  .site-logo i{
    font-size:1.2rem;
  }
  .article-hero{
    padding:44px 0 40px;
  }
  .breadcrumb{
    font-size:.8rem;
    flex-wrap:wrap;
  }
  .hero-line{
    width:56px;
    height:3px;
    margin-bottom:16px;
  }
  .article-meta{
    flex-direction:column;
    align-items:flex-start;
    gap:10px;
  }
  .article-share{
    gap:10px;
  }
  .faq-item{
    padding:20px;
  }
  .faq-item p{
    padding-left:0;
  }
  .primary-btn{
    width:100%;
    justify-content:center;
  }
}

/* roulang page: category2 */
/* ===== Design Variables ===== */
    :root {
      --bg-900: #0a0e17;
      --bg-800: #101724;
      --bg-700: #1a2332;
      --bg-card: rgba(255, 255, 255, 0.035);
      --bg-card-hover: rgba(255, 255, 255, 0.07);
      --border-line: rgba(255, 255, 255, 0.08);
      --border-line-light: rgba(255, 255, 255, 0.14);
      --neon-primary: #00e5ff;
      --neon-secondary: #ff2d95;
      --neon-purple: #8b5cf6;
      --text-main: #eef2f7;
      --text-dim: #9aa7b8;
      --radius-lg: 20px;
      --radius-md: 14px;
      --radius-sm: 8px;
      --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.45);
      --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.3);
      --space-section: 100px;
      --space-section-md: 72px;
      --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    /* ===== Base / Reset ===== */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      background: var(--bg-900);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      display: block;
    }
    button {
      cursor: pointer;
      border: none;
      font-family: inherit;
    }
    ul,
    ol {
      list-style: none;
    }
    .grid-container {
      max-width: 1200px;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* ===== Typography ===== */
    .section-title {
      font-size: clamp(28px, 4vw, 42px);
      font-weight: 800;
      line-height: 1.25;
      text-align: center;
      letter-spacing: -0.5px;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-dim);
      text-align: center;
      max-width: 680px;
      margin: 16px auto 0;
      line-height: 1.8;
    }
    .section-head {
      margin-bottom: 56px;
    }
    .section-head .section-subtitle {
      margin-bottom: 0;
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(10, 14, 23, 0.82);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 24px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 800;
      color: #fff;
      letter-spacing: 1px;
      white-space: nowrap;
      position: relative;
    }
    .site-logo i {
      color: var(--neon-primary);
      font-size: 20px;
      filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.7));
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: nowrap;
    }
    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 10px 18px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-dim);
      border: 1px solid transparent;
      position: relative;
      transition: var(--transition);
    }
    .nav-link i {
      font-size: 14px;
      opacity: 0.8;
    }
    .nav-link:hover {
      color: #fff;
      background: rgba(0, 229, 255, 0.08);
      border-color: rgba(0, 229, 255, 0.2);
    }
    .nav-link.active {
      color: var(--neon-primary);
      background: rgba(0, 229, 255, 0.1);
      border-color: rgba(0, 229, 255, 0.25);
      box-shadow: 0 0 20px rgba(0, 229, 255, 0.1), inset 0 0 12px rgba(0, 229, 255, 0.03);
      text-shadow: 0 0 12px rgba(0, 229, 255, 0.3);
    }
    .header-cta {
      flex-shrink: 0;
    }
    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-line-light);
      color: #fff;
      font-size: 18px;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
    }
    .nav-toggle:hover {
      background: rgba(255, 255, 255, 0.1);
    }

    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      line-height: 1.4;
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--neon-primary), #00a3c4);
      color: #041018;
      box-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 28px rgba(0, 229, 255, 0.45);
      color: #041018;
    }
    .btn-secondary {
      background: rgba(255, 255, 255, 0.05);
      color: #fff;
      border-color: rgba(255, 255, 255, 0.18);
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.35);
      transform: translateY(-2px);
    }
    .btn-lg {
      padding: 16px 38px;
      font-size: 17px;
    }

    /* ===== Hero ===== */
    .page-hero {
      position: relative;
      padding: 200px 0 120px;
      background: linear-gradient(180deg, rgba(10, 14, 23, 0.85) 10%, rgba(16, 23, 36, 0.92) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      overflow: hidden;
      text-align: center;
    }
    .page-hero::before {
      content: '';
      position: absolute;
      top: -120px;
      left: 50%;
      transform: translateX(-50%);
      width: 700px;
      height: 400px;
      background: radial-gradient(ellipse, rgba(0, 229, 255, 0.18), transparent 70%);
      z-index: 0;
      pointer-events: none;
    }
    .page-hero .grid-container {
      position: relative;
      z-index: 2;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 20px;
      border-radius: 999px;
      background: rgba(0, 229, 255, 0.12);
      border: 1px solid rgba(0, 229, 255, 0.3);
      font-size: 13px;
      font-weight: 600;
      color: var(--neon-primary);
      letter-spacing: 1px;
      margin-bottom: 26px;
    }
    .hero-badge i {
      font-size: 12px;
    }
    .page-hero h1 {
      font-size: clamp(38px, 6vw, 66px);
      font-weight: 900;
      line-height: 1.15;
      letter-spacing: -1px;
      margin-bottom: 20px;
      background: linear-gradient(120deg, #ffffff, var(--neon-primary));
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      text-shadow: none;
    }
    .hero-description {
      max-width: 720px;
      margin: 0 auto 38px;
      font-size: 17px;
      color: rgba(238, 242, 247, 0.9);
      line-height: 1.85;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* ===== Section Base ===== */
    .section {
      padding: var(--space-section) 0;
      position: relative;
    }
    .section-alt {
      background: var(--bg-800);
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-dark {
      background: linear-gradient(135deg, #0b1120, #121a2d);
      position: relative;
    }

    /* ===== Feature Cards ===== */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-lg);
      padding: 36px 26px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .feature-card::after {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--neon-primary), var(--neon-secondary));
      opacity: 0;
      transition: var(--transition);
    }
    .feature-card:hover {
      background: var(--bg-card-hover);
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-line-light);
    }
    .feature-card:hover::after {
      opacity: 1;
    }
    .feature-icon {
      width: 60px;
      height: 60px;
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 22px;
      background: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(139, 92, 246, 0.15));
      color: var(--neon-primary);
      border: 1px solid rgba(0, 229, 255, 0.2);
    }
    .feature-card:nth-child(2) .feature-icon {
      color: var(--neon-secondary);
      border-color: rgba(255, 45, 149, 0.2);
      background: linear-gradient(135deg, rgba(255, 45, 149, 0.15), rgba(139, 92, 246, 0.15));
    }
    .feature-card:nth-child(3) .feature-icon {
      color: var(--neon-purple);
      border-color: rgba(139, 92, 246, 0.25);
    }
    .feature-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: #fff;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-dim);
      line-height: 1.75;
    }

    /* ===== Scenario Cards ===== */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .scenario-card {
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      transition: var(--transition);
    }
    .scenario-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(0, 229, 255, 0.25);
    }
    .scenario-cover {
      position: relative;
      height: 210px;
      overflow: hidden;
    }
    .scenario-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .scenario-card:hover .scenario-cover img {
      transform: scale(1.05);
    }
    .scenario-cover::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 50%, rgba(10, 14, 23, 0.85) 100%);
    }
    .scenario-body {
      padding: 28px;
    }
    .scenario-body h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #fff;
    }
    .scenario-body p {
      font-size: 14px;
      color: var(--text-dim);
      line-height: 1.75;
    }
    .scenario-tag {
      display: inline-block;
      margin-bottom: 14px;
      padding: 4px 14px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
      background: rgba(0, 229, 255, 0.1);
      color: var(--neon-primary);
      border: 1px solid rgba(0, 229, 255, 0.2);
    }

    /* ===== Process Steps ===== */
    .process-section {
      background: var(--bg-800);
    }
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      counter-reset: step;
    }
    .step-item {
      position: relative;
      padding: 36px 26px 28px;
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-lg);
      text-align: center;
      transition: var(--transition);
    }
    .step-item:hover {
      border-color: rgba(0, 229, 255, 0.25);
      background: var(--bg-card-hover);
      transform: translateY(-4px);
    }
    .step-number {
      position: relative;
      width: 48px;
      height: 48px;
      margin: 0 auto 20px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 800;
      background: linear-gradient(135deg, var(--neon-primary), var(--neon-purple));
      color: #041018;
      box-shadow: 0 0 24px rgba(0, 229, 255, 0.4);
    }
    .step-item h3 {
      font-size: 17px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }
    .step-item p {
      font-size: 14px;
      color: var(--text-dim);
      line-height: 1.7;
    }
    .step-arrow {
      position: absolute;
      top: 50%;
      right: -16px;
      transform: translateY(-50%);
      color: rgba(0, 229, 255, 0.5);
      font-size: 16px;
      z-index: 2;
    }
    .steps-grid .step-item:last-child .step-arrow {
      display: none;
    }

    /* ===== Stats ===== */
    .stats-section {
      background: linear-gradient(135deg, rgba(0, 229, 255, 0.07), rgba(139, 92, 246, 0.07), rgba(255, 45, 149, 0.05)), var(--bg-900);
      border-top: 1px solid var(--border-line);
      border-bottom: 1px solid var(--border-line);
      padding: 80px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
      text-align: center;
    }
    .stat-item {
      padding: 30px 20px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-line);
      transition: var(--transition);
    }
    .stat-item:hover {
      background: rgba(0, 229, 255, 0.06);
      border-color: rgba(0, 229, 255, 0.2);
    }
    .stat-number {
      font-size: 48px;
      font-weight: 900;
      line-height: 1;
      color: var(--neon-primary);
      text-shadow: 0 0 30px rgba(0, 229, 255, 0.4);
    }
    .stat-number span {
      font-size: 24px;
      font-weight: 700;
    }
    .stat-label {
      margin-top: 12px;
      font-size: 14px;
      color: var(--text-dim);
    }

    /* ===== FAQ ===== */
    .faq-wrap {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item:hover {
      border-color: rgba(0, 229, 255, 0.2);
    }
    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 22px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      background: transparent;
      width: 100%;
      text-align: left;
    }
    .faq-question i {
      color: var(--neon-primary);
      font-size: 14px;
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }
    .faq-item.active .faq-question i {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
    }
    .faq-answer p {
      padding: 0 24px 22px;
      font-size: 14px;
      color: var(--text-dim);
      line-height: 1.8;
    }

    /* ===== CTA ===== */
    .cta-section {
      position: relative;
      padding: 90px 0;
      background: linear-gradient(135deg, rgba(0, 229, 255, 0.12), rgba(139, 92, 246, 0.12)), url('/assets/images/backpic/back-2.webp') center/cover fixed;
      text-align: center;
      overflow: hidden;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(10, 14, 23, 0.85);
      z-index: 1;
    }
    .cta-section .grid-container {
      position: relative;
      z-index: 2;
    }
    .cta-title {
      font-size: clamp(30px, 4vw, 44px);
      font-weight: 800;
      margin-bottom: 16px;
      color: #fff;
    }
    .cta-desc {
      max-width: 560px;
      margin: 0 auto 32px;
      color: rgba(255, 255, 255, 0.8);
      font-size: 16px;
      line-height: 1.8;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--bg-900);
      padding: 56px 0 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      position: relative;
      z-index: 2;
    }
    .footer-content {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 40px;
      flex-wrap: wrap;
    }
    .footer-brand {
      max-width: 320px;
    }
    .footer-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
    }
    .footer-logo i {
      color: var(--neon-primary);
      filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.6));
    }
    .footer-brand p {
      font-size: 14px;
      color: var(--text-dim);
      line-height: 1.7;
    }
    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
    }
    .footer-links a {
      font-size: 14px;
      color: var(--text-dim);
      padding: 4px 0;
      border-bottom: 1px solid transparent;
    }
    .footer-links a:hover {
      color: var(--neon-primary);
      border-bottom-color: var(--neon-primary);
    }
    .footer-copy {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      text-align: center;
    }
    .footer-copy p {
      font-size: 13px;
      color: rgba(154, 167, 184, 0.7);
    }

    /* ===== Focus Accessibility ===== */
    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--neon-primary);
      outline-offset: 3px;
      border-radius: 6px;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .feature-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }
      .step-arrow {
        display: none !important;
      }
      .nav-link {
        padding: 10px 14px;
        font-size: 14px;
      }
    }
    @media (max-width: 768px) {
      .section {
        padding: var(--space-section-md) 0;
      }
      .header-inner {
        height: 64px;
      }
      .nav-toggle {
        display: flex;
      }
      .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background: rgba(10, 14, 23, 0.98);
        border-bottom: 1px solid var(--border-line-light);
        padding: 16px;
        gap: 6px;
        box-shadow: var(--shadow-lg);
      }
      .main-nav.open {
        display: flex;
      }
      .nav-link {
        justify-content: center;
        padding: 14px;
        font-size: 15px;
      }
      .header-cta {
        display: none;
      }
      .scenario-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stat-number {
        font-size: 38px;
      }
      .footer-content {
        flex-direction: column;
        gap: 24px;
      }
      .page-hero {
        padding-top: 150px;
        padding-bottom: 80px;
      }
    }
    @media (max-width: 520px) {
      .grid-container {
        padding-left: 16px;
        padding-right: 16px;
      }
      .feature-grid {
        grid-template-columns: 1fr;
      }
      .steps-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 14px;
      }
      .stat-number {
        font-size: 32px;
      }
      .hero-actions .btn {
        width: 100%;
      }
      .page-hero h1 {
        font-size: 34px;
      }
      .section-title {
        font-size: 26px;
      }
      .footer-links {
        flex-direction: column;
        gap: 8px;
      }
    }

/* roulang page: category3 */
:root {
  --primary: #00e5ff;
  --primary-soft: rgba(0, 229, 255, .15);
  --accent: #ff2d75;
  --accent-soft: rgba(255, 45, 117, .12);
  --warn: #ff9f1c;
  --bg-deep: #080c14;
  --bg-body: #0a0e17;
  --bg-card: #111a27;
  --bg-card-hover: #16202e;
  --bg-header: rgba(8, 12, 20, .92);
  --border: #1e2c3c;
  --border-light: #2a3b50;
  --text-main: #e8edf2;
  --text-sub: #93a0b2;
  --text-dim: #5e6d85;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, .55);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, .4);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, .3);
  --glow-primary: 0 0 24px rgba(0, 229, 255, .3);
  --space-section: 88px;
  --space-element: 28px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

.grid-container {
  max-width: 1200px;
}

/* 主体容器 */
.page-wrap {
  overflow: hidden;
}

/* ==================== 顶部导航 ==================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-header);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 229, 255, .08);
  box-shadow: 0 4px 30px rgba(0, 0, 0, .5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 20px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .5px;
  color: #fff;
  white-space: nowrap;
}

.brand-logo .brand-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(0, 229, 255, .25), rgba(255, 45, 117, .2));
  color: var(--primary);
  font-size: 16px;
  border: 1px solid rgba(0, 229, 255, .4);
  box-shadow: var(--glow-primary);
}

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

.nav-link {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  border-radius: 8px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-sub);
  position: relative;
  transition: background .25s ease, color .25s ease, box-shadow .25s ease;
}

.nav-link i {
  font-size: 14px;
  opacity: .85;
}

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

.nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(0, 229, 255, .16), rgba(255, 45, 117, .1));
  border: 1px solid rgba(0, 229, 255, .25);
  box-shadow: var(--glow-primary);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--text-main);
  font-size: 20px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border);
  transition: all .25s ease;
}

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

/* ==================== Hero 首屏 ==================== */
.hero-section {
  position: relative;
  padding: 120px 0 100px;
  background:
    linear-gradient(135deg, rgba(8, 12, 20, .94) 0%, rgba(8, 12, 20, .8) 45%, rgba(8, 12, 20, .45) 100%),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  border-bottom: 1px solid rgba(0, 229, 255, .08);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  background: rgba(0, 229, 255, .1);
  border: 1px solid rgba(0, 229, 255, .3);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 22px;
  box-shadow: var(--glow-primary);
}

.hero-section h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.hero-section h1 span {
  background: linear-gradient(90deg, var(--primary), #8f6bff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-sub);
  max-width: 640px;
  margin-bottom: 34px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: all .3s ease;
  letter-spacing: .5px;
}

.btn-primary {
  background: linear-gradient(135deg, #00e5ff, #00bcd4);
  color: #041018;
  border: 1px solid rgba(0, 229, 255, .6);
  box-shadow: 0 6px 20px rgba(0, 229, 255, .25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 229, 255, .4);
  color: #041018;
}

.btn-outline {
  background: rgba(0, 229, 255, .06);
  color: var(--primary);
  border: 1px solid rgba(0, 229, 255, .45);
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  background: rgba(0, 229, 255, .14);
  box-shadow: var(--glow-primary);
  transform: translateY(-2px);
  color: #fff;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.hero-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-sub);
  font-size: 14px;
}

.hero-meta i {
  color: var(--primary);
}

/* ==================== 板块通用 ==================== */
.section-block {
  padding: var(--space-section) 0;
}

.section-block-alt {
  background: linear-gradient(180deg, rgba(8, 12, 20, .35) 0%, rgba(8, 12, 20, .85) 100%);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-head .section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary);
  background: var(--primary-soft);
  border: 1px solid rgba(0, 229, 255, .2);
  padding: 5px 12px;
  border-radius: 100px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.8;
}

/* ==================== 游戏项目卡片 ==================== */
.game-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}

.game-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}

.game-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity .3s ease;
}

.game-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0, 229, 255, .4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md), var(--glow-primary);
}

.game-card:hover::before {
  opacity: 1;
}

.game-icon {
  width: 58px;
  height: 58px;
  margin: 0 auto 14px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 229, 255, .18), rgba(255, 45, 117, .12));
  border: 1px solid rgba(0, 229, 255, .25);
  font-size: 22px;
  color: var(--primary);
}

.game-card h3 {
  font-size: 16px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 4px;
}

.game-card .game-en {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: .5px;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.game-card p {
  font-size: 12.5px;
  color: var(--text-sub);
  line-height: 1.6;
}

.game-tag {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(0, 229, 255, .08);
  color: var(--primary);
  border: 1px solid rgba(0, 229, 255, .2);
}

/* ==================== 服务功能卡片 ==================== */
.svc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.svc-card {
  background: linear-gradient(180deg, rgba(17, 26, 39, .92), rgba(13, 20, 30, .95));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: all .3s ease;
}

.svc-card:hover {
  border-color: rgba(0, 229, 255, .5);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md), var(--glow-primary);
}

.svc-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: var(--primary-soft);
  color: var(--primary);
  margin-bottom: 20px;
  border: 1px solid rgba(0, 229, 255, .2);
}

.svc-card h3 {
  font-size: 18px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ==================== 热门赛事 ==================== */
.match-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.match-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all .3s ease;
}

.match-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 45, 117, .4);
  box-shadow: var(--shadow-md);
}

.match-cover {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.match-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 12, 20, .1) 0%, rgba(8, 12, 20, .85) 100%);
}

.match-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.match-status {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 3;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(0, 229, 255, .9);
  color: #041018;
  box-shadow: 0 4px 12px rgba(0, 229, 255, .3);
}

.match-status.end {
  background: rgba(255, 45, 117, .9);
  color: #fff;
}

.match-info {
  padding: 22px;
}

.match-info h3 {
  font-size: 18px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 8px;
}

.match-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 16px;
}

.match-meta i {
  color: var(--primary);
  margin-right: 5px;
}

.match-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.match-viewers {
  font-size: 13px;
  color: var(--text-sub);
}

.match-viewers i {
  color: var(--accent);
  margin-right: 5px;
}

.match-link {
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap .25s ease;
}

.match-link:hover {
  gap: 11px;
}

/* ==================== 观赛流程 ==================== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 36px 24px 28px;
  transition: all .3s ease;
}

.step-card:hover {
  border-color: rgba(0, 229, 255, .45);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.step-num {
  counter-increment: step;
  position: absolute;
  top: -14px;
  left: 24px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #009ac7);
  color: #041018;
  font-size: 14px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(0, 229, 255, .4);
}

.step-card .step-num::before {
  content: counter(step);
}

.step-icon {
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 17px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ==================== 统计数据 ==================== */
.stats-band {
  background:
    linear-gradient(135deg, rgba(8, 12, 20, .95), rgba(17, 26, 39, .85)),
    url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 229, 255, .15);
  padding: 48px 36px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
  padding: 12px;
}

.stat-num {
  font-size: 44px;
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  background: linear-gradient(90deg, var(--primary), #8f6bff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  display: block;
}

.stat-item .stat-label {
  font-size: 14px;
  color: var(--text-sub);
  letter-spacing: 1px;
}

/* ==================== FAQ ==================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .25s ease;
}

.faq-item:hover {
  border-color: rgba(0, 229, 255, .3);
}

.faq-item details {
  padding: 0;
}

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  padding: 20px 24px;
  font-size: 16px;
  color: #fff;
  font-weight: 600;
  transition: background .25s ease;
}

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

.faq-item summary .faq-icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 12px;
  transition: transform .3s ease, background .3s ease;
}

.faq-item details[open] summary {
  background: rgba(0, 229, 255, .06);
  border-bottom: 1px solid var(--border);
}

.faq-item details[open] summary .faq-icon {
  transform: rotate(180deg);
  background: rgba(255, 45, 117, .15);
  color: var(--accent);
}

.faq-answer {
  padding: 18px 24px;
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.8;
}

/* ==================== CTA ==================== */
.cta-band {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 68px 48px;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(8, 12, 20, .9), rgba(17, 26, 39, .7)),
    url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
  border: 1px solid rgba(0, 229, 255, .2);
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  top: -80px;
  left: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, .15), transparent 70%);
  pointer-events: none;
}

.cta-band::after {
  content: "";
  position: absolute;
  bottom: -100px;
  right: -60px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 45, 117, .12), transparent 70%);
  pointer-events: none;
}

.cta-band h2 {
  font-size: 32px;
  color: #fff;
  font-weight: 800;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
}

.cta-band p {
  color: var(--text-sub);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 2;
}

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

/* ==================== 页脚 ==================== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255, 255, 255, .06);
  padding: 52px 0 28px;
  margin-top: 20px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, .05);
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.footer-logo i {
  color: var(--primary);
}

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

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding-top: 6px;
}

.footer-links a {
  color: var(--text-sub);
  font-size: 14px;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: all .25s ease;
}

.footer-links a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.footer-copy {
  padding-top: 22px;
  text-align: center;
  color: var(--text-dim);
  font-size: 13.5px;
}

/* ==================== 响应式 ==================== */
@media screen and (max-width: 1024px) {
  .game-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px 20px;
  }

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

@media screen and (max-width: 768px) {
  :root {
    --space-section: 62px;
  }

  .header-inner {
    flex-wrap: wrap;
    min-height: 64px;
    padding: 10px 16px;
  }

  .main-nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 0 8px;
    border-top: 1px solid var(--border);
    margin-top: 8px;
  }

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

  .nav-link {
    justify-content: flex-start;
    padding: 12px 14px;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-section {
    padding: 80px 0 70px;
  }

  .hero-section h1 {
    font-size: 34px;
  }

  .hero-sub {
    font-size: 15.5px;
  }

  .section-head h2 {
    font-size: 28px;
  }

  .game-grid,
  .svc-grid,
  .match-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .stats-band {
    grid-template-columns: 1fr 1fr;
    padding: 32px 20px;
  }

  .cta-band {
    padding: 48px 24px;
  }

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

  .footer-content {
    flex-direction: column;
    gap: 20px;
  }
}

@media screen and (max-width: 520px) {
  .hero-section h1 {
    font-size: 28px;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-meta {
    flex-direction: column;
    gap: 10px;
  }

  .section-head h2 {
    font-size: 24px;
  }

  .stats-band {
    grid-template-columns: 1fr;
  }

  .match-cover {
    height: 150px;
  }

  .faq-item summary {
    padding: 16px 18px;
    font-size: 14.5px;
  }

  .faq-answer {
    padding: 14px 18px;
    font-size: 14px;
  }
}

/* 焦点样式 */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

img {
  object-fit: cover;
}

/* roulang page: category4 */
:root {
      --primary: #00e5ff;
      --primary-dark: #00b8d4;
      --secondary: #ff3d81;
      --accent: #7c4dff;
      --bg-body: #050a14;
      --bg-card: #0e1626;
      --bg-card-hover: #141f33;
      --bg-deep: #090f1c;
      --text-light: #f1f5f9;
      --text-muted: #9aa7b8;
      --border: rgba(255,255,255,0.08);
      --border-glow: rgba(0,229,255,0.22);
      --radius: 16px;
      --radius-sm: 10px;
      --shadow: 0 12px 40px rgba(0,0,0,0.35);
      --shadow-glow: 0 0 24px rgba(0,229,255,0.14);
      --transition: all 0.3s ease;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      background: var(--bg-body);
      color: var(--text-light);
      font-family: "Noto Sans SC", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border: 0;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 3px;
      border-radius: 6px;
    }

    ul,
    ol {
      list-style: none;
    }

    .grid-container {
      max-width: 1200px;
    }

    .section-padding {
      padding: 96px 0;
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 52px;
    }

    .section-tag {
      display: inline-block;
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 2px;
      color: var(--primary);
      background: rgba(0, 229, 255, 0.08);
      border: 1px solid var(--border-glow);
      border-radius: 40px;
      padding: 6px 18px;
      margin-bottom: 16px;
      text-transform: uppercase;
    }

    .section-head h2 {
      font-size: 36px;
      font-weight: 900;
      line-height: 1.35;
      color: var(--text-light);
      margin-bottom: 14px;
    }

    .section-head p {
      color: var(--text-muted);
      font-size: 16px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(5, 10, 20, 0.82);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      height: 76px;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 900;
      color: var(--text-light);
      white-space: nowrap;
      letter-spacing: 1px;
    }

    .brand-logo i {
      color: var(--primary);
      font-size: 24px;
      filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.5));
    }

    .brand-logo span {
      background: linear-gradient(135deg, var(--primary), #ffffff);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

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

    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 16px;
      border-radius: 40px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      border: 1px solid transparent;
    }

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

    .nav-link:hover {
      color: var(--text-light);
      background: rgba(255, 255, 255, 0.06);
      border-color: var(--border);
      transform: translateY(-1px);
    }

    .nav-link.active {
      color: var(--primary);
      background: rgba(0, 229, 255, 0.08);
      border-color: var(--border-glow);
      box-shadow: var(--shadow-glow);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border);
      color: var(--text-light);
      font-size: 20px;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      cursor: pointer;
      align-items: center;
      justify-content: center;
    }

    .menu-toggle:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 15px;
      font-weight: 600;
      padding: 13px 30px;
      border-radius: 50px;
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
      line-height: 1.4;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #04121a;
      box-shadow: 0 8px 24px rgba(0, 229, 255, 0.22);
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 28px rgba(0, 229, 255, 0.35);
      color: #04121a;
    }

    .btn-outline {
      background: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background: rgba(0, 229, 255, 0.08);
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-3px);
    }

    .btn-secondary {
      background: linear-gradient(135deg, var(--secondary), #c2185b);
      color: #fff;
      box-shadow: 0 8px 24px rgba(255, 61, 129, 0.25);
    }

    .btn-secondary:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 30px rgba(255, 61, 129, 0.35);
      color: #fff;
    }

    .btn-outline-light {
      background: transparent;
      border-color: rgba(255, 255, 255, 0.5);
      color: #ffffff;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: #ffffff;
      color: #ffffff;
      transform: translateY(-3px);
    }

    .hero {
      position: relative;
      padding: 110px 0 90px;
      overflow: hidden;
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      z-index: -2;
    }

    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(5, 10, 20, 0.95) 5%, rgba(5, 10, 20, 0.72) 55%, rgba(5, 10, 20, 0.4) 100%);
      z-index: -1;
    }

    .hero-content {
      text-align: center;
      max-width: 860px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(0, 229, 255, 0.08);
      border: 1px solid var(--border-glow);
      color: var(--primary);
      font-size: 14px;
      letter-spacing: 3px;
      padding: 8px 22px;
      border-radius: 40px;
      margin-bottom: 20px;
      backdrop-filter: blur(4px);
    }

    .hero h1 {
      font-size: 52px;
      font-weight: 900;
      line-height: 1.2;
      color: var(--text-light);
      margin-bottom: 22px;
      letter-spacing: 1px;
    }

    .hero h1 span {
      color: var(--primary);
      text-shadow: 0 0 30px rgba(0, 229, 255, 0.35);
    }

    .hero-subtitle {
      font-size: 17px;
      color: rgba(241, 245, 249, 0.85);
      max-width: 640px;
      margin: 0 auto 36px;
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .hero-stats {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .hero-stat-item {
      background: rgba(14, 22, 38, 0.65);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 18px 30px;
      backdrop-filter: blur(8px);
      min-width: 150px;
    }

    .hero-stat-item .num {
      font-size: 28px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.2;
    }

    .hero-stat-item .label {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    .features {
      background: var(--bg-body);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px 26px;
      height: 100%;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), transparent);
      opacity: 0;
      transition: var(--transition);
    }

    .feature-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-glow);
      transform: translateY(-6px);
      box-shadow: var(--shadow);
    }

    .feature-card:hover::before {
      opacity: 1;
    }

    .feature-icon {
      width: 56px;
      height: 56px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      background: rgba(0, 229, 255, 0.1);
      border: 1px solid var(--border-glow);
      color: var(--primary);
      font-size: 24px;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 10px;
    }

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

    .circles {
      background: var(--bg-deep);
      position: relative;
    }

    .circle-card {
      position: relative;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
      height: 100%;
      min-height: 320px;
      display: flex;
      align-items: flex-end;
      transition: var(--transition);
    }

    .circle-card img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .circle-card::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(5, 10, 20, 0.1) 0%, rgba(5, 10, 20, 0.92) 100%);
      z-index: 1;
    }

    .circle-card:hover img {
      transform: scale(1.06);
    }

    .circle-card:hover {
      border-color: var(--border-glow);
      box-shadow: var(--shadow-glow);
      transform: translateY(-5px);
    }

    .circle-info {
      position: relative;
      z-index: 2;
      padding: 26px;
      width: 100%;
    }

    .circle-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 1px;
      color: var(--primary);
      background: rgba(0, 229, 255, 0.1);
      border: 1px solid var(--border-glow);
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 10px;
    }

    .circle-info h3 {
      font-size: 22px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 6px;
    }

    .circle-info p {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.78);
      margin-bottom: 10px;
    }

    .circle-members {
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
    }

    .circle-members i {
      margin-right: 4px;
    }

    .scenarios {
      background: var(--bg-body);
    }

    .scenario-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 34px 28px;
      height: 100%;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .scenario-card:hover {
      border-color: var(--border-glow);
      box-shadow: var(--shadow);
      transform: translateY(-5px);
      background: var(--bg-card-hover);
    }

    .scenario-step {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      font-weight: 900;
      font-size: 17px;
      margin-bottom: 18px;
    }

    .scenario-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 12px;
    }

    .scenario-card p {
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.8;
      margin-bottom: 0;
      flex: 1;
    }

    .process {
      background: var(--bg-deep);
    }

    .process-steps {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 24px;
      position: relative;
      counter-reset: step;
    }

    .process-steps::before {
      content: "";
      position: absolute;
      top: 38px;
      left: 8%;
      right: 8%;
      height: 2px;
      background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
      opacity: 0.4;
    }

    .process-step {
      position: relative;
      z-index: 1;
      text-align: center;
      flex: 1;
    }

    .step-num {
      width: 76px;
      height: 76px;
      margin: 0 auto 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: var(--bg-card);
      border: 2px solid var(--primary);
      color: var(--primary);
      font-size: 26px;
      font-weight: 900;
      box-shadow: 0 0 0 6px rgba(0, 229, 255, 0.06);
    }

    .process-step h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 8px;
    }

    .process-step p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      max-width: 180px;
      margin: 0 auto;
    }

    .stats-section {
      background: var(--bg-body);
      border-top: 1px solid var(--border);
    }

    .stat-card {
      text-align: center;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 34px 20px;
      height: 100%;
      transition: var(--transition);
    }

    .stat-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-4px);
      box-shadow: var(--shadow);
    }

    .stat-card .num {
      font-size: 40px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.2;
      background: linear-gradient(135deg, var(--primary), #ffffff);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .stat-card .unit {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-muted);
      margin-left: 2px;
    }

    .stat-card .label {
      color: var(--text-muted);
      font-size: 14px;
      margin-top: 10px;
    }

    .faq {
      background: var(--bg-deep);
    }

    .faq-accordion {
      max-width: 860px;
      margin: 0 auto;
      list-style: none;
    }

    .faq-accordion .accordion-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
      list-style: none;
    }

    .faq-accordion .accordion-item:hover {
      border-color: var(--border-glow);
    }

    .faq-accordion .accordion-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-light);
      padding: 18px 22px;
      position: relative;
    }

    .faq-accordion .accordion-title::after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      color: var(--primary);
      font-size: 14px;
      transition: var(--transition);
    }

    .faq-accordion .accordion-item.is-active .accordion-title::after {
      transform: rotate(180deg);
    }

    .faq-accordion .accordion-content {
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.8;
      padding: 0 22px 20px;
    }

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

    .cta-banner {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      background-image: url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center;
      padding: 80px 40px;
      text-align: center;
    }

    .cta-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(5, 10, 20, 0.92), rgba(14, 22, 38, 0.75));
    }

    .cta-banner > * {
      position: relative;
      z-index: 1;
    }

    .cta-banner h2 {
      font-size: 34px;
      font-weight: 900;
      color: var(--text-light);
      margin-bottom: 14px;
    }

    .cta-banner p {
      color: rgba(241, 245, 249, 0.82);
      font-size: 16px;
      max-width: 560px;
      margin: 0 auto 30px;
      line-height: 1.8;
    }

    .cta-banner .btn-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 14px;
      flex-wrap: wrap;
    }

    .site-footer {
      background: var(--bg-deep);
      border-top: 1px solid var(--border);
      padding: 60px 0 30px;
    }

    .footer-content {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 30px;
      flex-wrap: wrap;
      margin-bottom: 34px;
    }

    .footer-brand {
      max-width: 340px;
    }

    .footer-logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 20px;
      font-weight: 800;
      color: var(--text-light);
      margin-bottom: 14px;
    }

    .footer-logo i {
      color: var(--primary);
    }

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

    .footer-links {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }

    .footer-links a {
      color: var(--text-muted);
      font-size: 14px;
      padding: 6px 0;
      border-bottom: 1px solid transparent;
    }

    .footer-links a:hover {
      color: var(--primary);
      border-bottom-color: var(--primary);
    }

    .footer-copy {
      border-top: 1px solid var(--border);
      padding-top: 24px;
      text-align: center;
    }

    .footer-copy p {
      color: var(--text-muted);
      font-size: 13px;
      margin: 0;
    }

    @media (max-width: 900px) {
      .section-padding {
        padding: 70px 0;
      }

      .hero h1 {
        font-size: 40px;
      }

      .header-inner {
        height: 68px;
      }

      .main-nav {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: rgba(5, 10, 20, 0.98);
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 16px 20px 22px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
      }

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

      .nav-link {
        justify-content: flex-start;
        font-size: 16px;
        padding: 12px 18px;
      }

      .menu-toggle {
        display: flex;
        margin-left: auto;
      }

      .header-cta {
        display: none;
      }

      .process-steps {
        flex-direction: column;
        align-items: center;
        gap: 30px;
      }

      .process-steps::before {
        display: none;
      }

      .process-step p {
        max-width: 300px;
      }
    }

    @media (max-width: 768px) {
      .section-padding {
        padding: 56px 0;
      }

      .section-head {
        margin-bottom: 36px;
      }

      .section-head h2 {
        font-size: 27px;
      }

      .hero {
        padding: 76px 0 60px;
      }

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

      .hero-subtitle {
        font-size: 15px;
      }

      .hero-stats {
        gap: 12px;
      }

      .hero-stat-item {
        min-width: 120px;
        padding: 12px 16px;
      }

      .hero-stat-item .num {
        font-size: 22px;
      }

      .cta-banner {
        padding: 50px 24px;
      }

      .cta-banner h2 {
        font-size: 25px;
      }

      .feature-card,
      .scenario-card {
        padding: 24px 20px;
      }

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

    @media (max-width: 520px) {
      .brand-logo {
        font-size: 17px;
      }

      .brand-logo i {
        font-size: 18px;
      }

      .hero h1 {
        font-size: 27px;
      }

      .hero-subtitle {
        font-size: 14px;
      }

      .footer-content {
        flex-direction: column;
        gap: 20px;
      }

      .footer-links {
        flex-direction: column;
        gap: 6px;
      }

      .btn {
        padding: 11px 20px;
        font-size: 14px;
      }

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