/* roulang page: index */
:root {
  --primary: #e8214a;
  --primary-dark: #c0183a;
  --primary-light: #ff5a7a;
  --accent: #f7c948;
  --bg-dark: #0b0d14;
  --bg-card: #151824;
  --bg-card-hover: #1c202e;
  --bg-section: #11141f;
  --border: #252a3a;
  --border-light: #2e3445;
  --text-main: #f0f0f5;
  --text-sub: #9fa6b5;
  --text-faint: #6b7280;
  --success: #2ecc71;
  --warning: #f7c948;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0,0,0,.35);
  --shadow-hover: 0 12px 40px rgba(232,33,74,.18);
  --transition: .25s ease;
}

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

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
}

@media (min-width: 1024px) { .container { padding: 0 40px; } }
@media (min-width: 1200px) { .container { max-width: 1320px; } }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(232,33,74,.3);
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(232,33,74,.4); }
.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-light);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary-light); transform: translateY(-2px); }
.btn-ghost {
  background: rgba(255,255,255,.06);
  color: var(--text-main);
  border: 1px solid transparent;
}
.btn-ghost:hover { background: rgba(255,255,255,.1); color: #fff; }
.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn-lg { padding: 15px 36px; font-size: 16px; }

/* 徽章 */
.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .02em;
  background: rgba(232,33,74,.12);
  color: var(--primary-light);
  border: 1px solid rgba(232,33,74,.3);
}
.badge-accent { background: rgba(247,201,72,.1); color: var(--accent); border-color: rgba(247,201,72,.3); }
.badge-success { background: rgba(46,204,113,.1); color: var(--success); border-color: rgba(46,204,113,.3); }

/* ===== 头部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,13,20,.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 24px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .01em;
  white-space: nowrap;
}
.brand-dot {
  display: inline-block;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #ff7a3d);
  box-shadow: 0 0 20px rgba(232,33,74,.4);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  padding: 8px 20px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  transition: all var(--transition);
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,.05); }
.nav-link.active { color: #fff; background: rgba(232,33,74,.15); font-weight: 600; }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--text-main); border-radius: 2px; }

/* 移动端导航 */
.mobile-nav {
  display: none;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 12px 16px;
  border-radius: 10px;
  color: var(--text-sub);
  font-weight: 500;
}
.mobile-nav a:hover { background: rgba(255,255,255,.05); color: #fff; }
.mobile-nav .btn { margin-top: 8px; }

/* ===== 首屏 Hero ===== */
.hero {
  position: relative;
  padding: 100px 0 90px;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,13,20,.92) 0%, rgba(11,13,20,.7) 55%, rgba(232,33,74,.18) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.hero h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.25;
  margin: 20px 0 16px;
  color: #fff;
  letter-spacing: .01em;
}
.hero .hero-sub {
  font-size: 18px;
  color: rgba(240,240,245,.8);
  line-height: 1.8;
  margin-bottom: 12px;
}
.hero .hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.hero .btn-group { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.hero-stat { text-align: left; }
.hero-stat strong { display: block; font-size: 28px; font-weight: 800; color: #fff; }
.hero-stat span { font-size: 13px; color: var(--text-sub); }

/* ===== 板块通用 ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-section); }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 50px; }
.section-header .badge { margin-bottom: 12px; }
.section-header h2 { font-size: 32px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.section-header p { color: var(--text-sub); font-size: 16px; line-height: 1.7; }

/* ===== 卡片 ===== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 32px;
  transition: all var(--transition);
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: rgba(232,33,74,.12);
  color: var(--primary-light);
  margin-bottom: 20px;
}
.card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.card p { color: var(--text-sub); font-size: 14px; line-height: 1.7; }
.card .card-tag { margin-top: 16px; display: flex; gap: 8px; flex-wrap: wrap; }

/* 封面卡片 */
.cover-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.cover-card:hover { border-color: var(--border-light); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.cover-card .cover-img { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.cover-card .cover-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.cover-card:hover .cover-img img { transform: scale(1.04); }
.cover-card .cover-tag { position: absolute; top: 14px; left: 14px; }
.cover-card .cover-body { padding: 22px; flex: 1; display: flex; flex-direction: column; gap: 8px; }
.cover-card .cover-body h3 { font-size: 17px; font-weight: 700; color: #fff; line-height: 1.5; }
.cover-card .cover-body p { color: var(--text-sub); font-size: 13px; line-height: 1.7; flex: 1; }
.cover-card .cover-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--text-faint); margin-top: 12px; }

/* ===== 特征网格 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}
.feature-item:hover { border-color: var(--primary); background: var(--bg-card-hover); transform: translateY(-4px); }
.feature-item .feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: linear-gradient(135deg, rgba(232,33,74,.2), rgba(247,201,72,.15));
  color: var(--primary-light);
}
.feature-item h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.feature-item p { font-size: 13px; color: var(--text-sub); line-height: 1.7; }

/* ===== 分类入口 ===== */
.category-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}
.category-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  display: flex;
  min-height: 260px;
}
.category-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.category-card .category-img { width: 42%; position: relative; overflow: hidden; }
.category-card .category-img img { width: 100%; height: 100%; object-fit: cover; }
.category-card .category-body { flex: 1; padding: 32px; display: flex; flex-direction: column; justify-content: center; }
.category-card .category-body h3 { font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.category-card .category-body p { font-size: 14px; color: var(--text-sub); line-height: 1.8; margin-bottom: 18px; }

/* ===== 流程 ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}
.step-item {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  position: relative;
  transition: all var(--transition);
}
.step-item:hover { border-color: var(--primary); transform: translateY(-3px); }
.step-item::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  box-shadow: 0 4px 16px rgba(232,33,74,.3);
}
.step-item h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.step-item p { font-size: 13px; color: var(--text-sub); line-height: 1.7; }

/* ===== 资讯列表 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.news-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all var(--transition);
}
.news-item:hover { border-color: var(--primary); background: var(--bg-card-hover); transform: translateX(4px); }
.news-item h3 { font-size: 16px; font-weight: 700; color: #fff; line-height: 1.5; }
.news-item p { font-size: 13px; color: var(--text-sub); line-height: 1.7; }
.news-item-meta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; font-size: 12px; color: var(--text-faint); }
.empty-state {
  grid-column: 1 / -1;
  padding: 60px;
  text-align: center;
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--text-faint);
  font-size: 16px;
}

/* ===== 数据统计 ===== */
.stats-section {
  background: linear-gradient(135deg, rgba(232,33,74,.12), rgba(247,201,72,.06)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  padding: 80px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}
.stat-item {
  padding: 32px 20px;
  background: rgba(13,15,22,.75);
  backdrop-filter: blur(12px);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.stat-item strong { display: block; font-size: 36px; font-weight: 800; color: #fff; margin-bottom: 4px; }
.stat-item span { font-size: 14px; color: var(--text-sub); }

/* ===== FAQ ===== */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover { border-color: var(--border-light); }
.faq-title {
  padding: 20px 28px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-title .fa { font-size: 14px; color: var(--primary-light); transition: transform var(--transition); flex-shrink: 0; }
.faq-content {
  padding: 0 28px;
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.8;
}
.faq-item.open .faq-content { padding: 0 28px 20px; max-height: 300px; }
.faq-item.open .faq-title .fa { transform: rotate(180deg); }

/* ===== CTA ===== */
.cta-section {
  padding: 90px 0;
  background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  position: relative;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(11,13,20,.78); }
.cta-box { position: relative; z-index: 1; text-align: center; max-width: 700px; margin: 0 auto; }
.cta-box h2 { font-size: 36px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-box p { font-size: 16px; color: rgba(240,240,245,.8); margin-bottom: 30px; }

/* ===== 页脚 ===== */
.site-footer {
  background: #090b11;
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 50px;
  padding-bottom: 40px;
}
.footer-logo { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-brand p { color: var(--text-sub); font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-links { display: flex; gap: 40px; flex-wrap: wrap; }
.footer-link-group h4 { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 14px; }
.footer-link-group a { display: block; color: var(--text-sub); font-size: 13px; padding: 4px 0; }
.footer-link-group a:hover { color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom p { color: var(--text-faint); font-size: 13px; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .feature-grid, .steps-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 80px 0 70px; }
  .hero h1 { font-size: 36px; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .nav-actions .nav-cta { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .category-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .category-card { flex-direction: column; }
  .category-card .category-img { width: 100%; height: 180px; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 28px; }
  .hero .btn-group { flex-direction: column; width: 100%; }
  .hero .btn { width: 100%; }
  .feature-grid, .steps-grid, .stats-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .section-header h2 { font-size: 26px; }
  .container { padding: 0 18px; }
  .hero-stats { gap: 20px; }
  .stats-section { padding: 60px 0; }
  .cta-box h2 { font-size: 26px; }
}

/* 简化导航响应式处理 */
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* roulang page: category1 */
:root {
  --primary: #c9142e;
  --primary-dark: #a31025;
  --primary-light: #e83a52;
  --accent: #d4a853;
  --accent-light: #e8c97d;
  --dark-bg: #0d0d0f;
  --dark-surface: #151519;
  --dark-card: #1c1c22;
  --dark-elevated: #24242c;
  --text-main: #f2eee6;
  --text-dim: #a39e94;
  --text-mute: #6f6a62;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.18);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.5);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--dark-bg);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--accent-light);
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

@media (max-width: 768px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 13, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

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

.brand-logo {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.brand-logo i {
  color: var(--primary-light);
  font-size: 1.35rem;
}

.brand-logo:hover {
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-dim);
  transition: var(--transition);
  white-space: nowrap;
}

.main-nav .nav-link i {
  font-size: 0.8rem;
  opacity: 0.7;
}

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

.main-nav .nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 4px 16px rgba(201, 20, 46, 0.35);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn i {
  font-size: 0.85rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 6px 24px rgba(201, 20, 46, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(201, 20, 46, 0.45);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(212, 168, 83, 0.08);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #b8903a);
  color: #1a1200;
  box-shadow: 0 6px 24px rgba(212, 168, 83, 0.35);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(212, 168, 83, 0.45);
  color: #1a1200;
}

.btn-lg {
  padding: 14px 36px;
  font-size: 1.02rem;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  width: 44px;
  height: 44px;
  font-size: 1.25rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.page-hero {
  position: relative;
  padding: 100px 0 80px;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  border-bottom: 1px solid var(--border-color);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(13, 13, 15, 0.92) 0%, rgba(13, 13, 15, 0.72) 55%, rgba(13, 13, 15, 0.6) 100%);
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 28px;
}

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

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

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

.hero-badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  letter-spacing: 0.02em;
}

.badge i {
  color: var(--accent);
  font-size: 0.7rem;
}

.badge-accent {
  background: rgba(212, 168, 83, 0.12);
  border-color: rgba(212, 168, 83, 0.3);
  color: var(--accent-light);
}

.hero-title {
  font-size: 2.9rem;
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 30%, var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.13rem;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 0 32px;
  line-height: 1.8;
}

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

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border-color);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.stat-value span {
  color: var(--accent);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.section {
  padding: 90px 0;
}

.section-alt {
  background: var(--dark-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.1rem;
  font-weight: 900;
  line-height: 1.3;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 1.02rem;
  color: var(--text-dim);
  margin: 0;
  line-height: 1.7;
}

.methods-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 1024px) {
  .methods-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .methods-grid {
    grid-template-columns: 1fr;
  }
}

.method-card {
  background: var(--dark-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  transition: var(--transition);
  overflow: hidden;
}

.method-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.method-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

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

.method-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  background: linear-gradient(135deg, rgba(201, 20, 46, 0.2), rgba(212, 168, 83, 0.12));
  color: var(--accent-light);
  margin-bottom: 20px;
}

.method-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 0 10px;
}

.method-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin: 0 0 20px;
  line-height: 1.7;
}

.method-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.flow-wrapper {
  max-width: 980px;
  margin: 0 auto;
}

.flow-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

@media (max-width: 768px) {
  .flow-row {
    grid-template-columns: 1fr 1fr;
    gap: 32px 20px;
  }
}

@media (max-width: 520px) {
  .flow-row {
    grid-template-columns: 1fr;
  }
}

.flow-step {
  text-align: center;
  padding: 0 16px;
  position: relative;
}

.flow-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 34px;
  right: -1px;
  width: calc(100% - 68px);
  height: 2px;
  background: linear-gradient(90deg, rgba(212, 168, 83, 0.4), rgba(212, 168, 83, 0.1));
}

@media (max-width: 768px) {
  .flow-step:nth-child(2n)::after {
    display: none;
  }
}

@media (max-width: 520px) {
  .flow-step:not(:last-child)::after {
    display: none;
  }
}

.flow-number {
  width: 68px;
  height: 68px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--dark-card);
  border: 2px solid rgba(212, 168, 83, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--accent);
  position: relative;
  z-index: 2;
  box-shadow: 0 0 0 6px var(--dark-bg);
}

.flow-step h4 {
  font-size: 1.05rem;
  font-weight: 800;
  margin: 0 0 8px;
}

.flow-step p {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin: 0;
  line-height: 1.7;
}

.security-wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}

@media (max-width: 768px) {
  .security-wrap {
    grid-template-columns: 1fr;
  }
}

.security-content h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 24px;
}

.security-list {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
}

.security-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.security-list li:last-child {
  border-bottom: none;
}

.security-list li i {
  color: var(--accent);
  margin-top: 5px;
  font-size: 0.85rem;
}

.security-card {
  background: linear-gradient(145deg, var(--dark-card), var(--dark-elevated));
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.security-card h4 {
  font-size: 1.15rem;
  font-weight: 800;
  margin: 0 0 20px;
}

.security-spec {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.spec-row .label {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.spec-row .value {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--accent-light);
}

.ranking-wrap {
  max-width: 760px;
  margin: 0 auto;
}

.ranking-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 20px 24px;
  background: var(--dark-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.ranking-item:hover {
  border-color: var(--border-hover);
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

.ranking-num {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--text-mute);
  min-width: 40px;
  text-align: center;
}

.ranking-item:nth-child(1) .ranking-num {
  color: var(--primary-light);
}

.ranking-item:nth-child(2) .ranking-num {
  color: var(--accent);
}

.ranking-item:nth-child(3) .ranking-num {
  color: var(--accent-light);
}

.ranking-text {
  flex: 1;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-main);
}

.ranking-hot {
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(201, 20, 46, 0.15);
  color: var(--primary-light);
  white-space: nowrap;
}

.related-scroller {
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 20px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--border-hover) transparent;
}

.related-scroller .grid-x {
  display: flex;
  flex-wrap: nowrap;
  gap: 20px;
  min-width: max-content;
}

.related-card {
  width: 300px;
  flex-shrink: 0;
  scroll-snap-align: start;
  background: var(--dark-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: var(--transition);
}

.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
}

.related-card-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}

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

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

.related-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(13, 13, 15, 0.8));
}

.related-card-cat {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(13, 13, 15, 0.7);
  backdrop-filter: blur(8px);
  color: var(--accent-light);
  border: 1px solid rgba(212, 168, 83, 0.3);
}

.related-card-body {
  padding: 20px;
}

.related-card-body h4 {
  font-size: 0.98rem;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.5;
}

.related-card-body p {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin: 0;
  line-height: 1.6;
}

.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

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

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

.faq-item summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main);
  transition: var(--transition);
  user-select: none;
}

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

.faq-item summary i {
  color: var(--accent);
  font-size: 0.95rem;
  transition: var(--transition);
}

.faq-item summary .fa-chevron-down {
  margin-left: auto;
  color: var(--text-mute);
  font-size: 0.8rem;
  transition: transform 0.3s ease;
}

.faq-item[open] summary {
  border-bottom: 1px solid var(--border-color);
}

.faq-item[open] summary .fa-chevron-down {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 18px 24px;
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.8;
}

.cta-section {
  position: relative;
  padding: 90px 0;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13, 13, 15, 0.94), rgba(13, 13, 15, 0.82));
}

.cta-section .container {
  position: relative;
  z-index: 2;
}

.cta-title {
  font-size: 2.2rem;
  font-weight: 900;
  margin: 0 0 16px;
}

.cta-desc {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

.site-footer {
  background: var(--dark-surface);
  border-top: 1px solid var(--border-color);
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: 60px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-color);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 0 14px;
  color: var(--text-main);
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-dim);
  margin: 0;
  line-height: 1.8;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 48px;
}

@media (max-width: 520px) {
  .footer-links {
    gap: 28px;
  }
}

.footer-link-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link-group h4 {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-mute);
  margin: 0 0 6px;
}

.footer-link-group a {
  font-size: 0.9rem;
  color: var(--text-dim);
  transition: var(--transition);
}

.footer-link-group a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 0;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-mute);
}

@media (max-width: 768px) {
  .header-cta .btn {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(13, 13, 15, 0.97);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav .nav-link {
    width: 100%;
  }

  .hero-title {
    font-size: 2rem;
  }

  .section {
    padding: 60px 0;
  }

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

  .hero-stats {
    gap: 20px;
  }

  .stat-value {
    font-size: 1.25rem;
  }
}

@media (max-width: 520px) {
  .hero-title {
    font-size: 1.65rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 14px;
  }

  .stat-item {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
  }

  .method-card {
    padding: 28px 20px;
  }

  .ranking-item {
    padding: 16px;
    gap: 12px;
  }

  .ranking-num {
    font-size: 1.1rem;
    min-width: 28px;
  }

  .related-card {
    width: 260px;
  }

  .faq-item summary {
    padding: 16px 16px;
    font-size: 0.9rem;
  }

  .faq-answer {
    padding: 14px 16px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

div:focus, summary:focus, a:focus, button:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* roulang page: article */
:root{
  --primary:#2563eb;
  --primary-dark:#1e4fd8;
  --primary-light:#eef4ff;
  --accent:#f97316;
  --accent-dark:#ea580c;
  --dark-bg:#0b1220;
  --dark-bg-2:#141f36;
  --body-bg:#f4f6fb;
  --text:#1e293b;
  --text-weak:#64748b;
  --border:#e2e8f0;
  --white:#ffffff;
  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow-sm:0 2px 10px rgba(15,23,42,.06);
  --shadow-md:0 10px 30px rgba(15,23,42,.08);
  --shadow-lg:0 24px 60px rgba(15,23,42,.14);
  --transition:.25s ease;
  --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  background:var(--body-bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section-pad{padding:88px 0}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(226,232,240,.7);
  box-shadow:0 4px 20px rgba(15,23,42,.04);
  transition:var(--transition);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:20px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-icon{
  width:42px;height:42px;
  border-radius:13px;
  background:linear-gradient(135deg,var(--primary),#7c3aed);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  box-shadow:0 8px 22px rgba(37,99,235,.35);
}
.brand-text{
  font-size:20px;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--text);
  white-space:nowrap;
}
.brand-text span{color:var(--primary)}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0;
  padding:0;
  list-style:none;
}
.nav-link{
  display:inline-block;
  padding:9px 18px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  color:var(--text-weak);
  transition:var(--transition);
}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link.active{color:var(--primary);background:var(--primary-light)}
.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:none;
  border-radius:999px;
  font-weight:700;
  font-size:15px;
  padding:12px 26px;
  transition:var(--transition);
  cursor:pointer;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#3b82f6);
  color:#fff;
  box-shadow:0 8px 24px rgba(37,99,235,.32);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(37,99,235,.42);
  color:#fff;
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border:2px solid var(--primary);
  padding:10px 24px;
}
.btn-outline:hover{background:var(--primary-light)}
.btn-light{
  background:#fff;
  color:var(--dark-bg);
  box-shadow:0 12px 32px rgba(0,0,0,.18);
}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(0,0,0,.25)}
.btn-outline-light{
  background:transparent;
  color:#fff;
  border:2px solid rgba(255,255,255,.7);
}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--primary-light);
  color:var(--primary);
  border:none;
  align-items:center;
  justify-content:center;
  font-size:18px;
}
.mobile-menu{
  display:none;
  padding:16px 24px 24px;
  background:rgba(255,255,255,.98);
  border-top:1px solid var(--border);
  flex-direction:column;
  gap:6px;
}
.mobile-menu.open{display:flex}
.mobile-menu .nav-link{padding:14px 16px}
.mobile-menu .btn{margin-top:8px;width:100%}

/* ---------- Page Hero ---------- */
.page-hero{
  position:relative;
  padding:148px 0 120px;
  color:#fff;
  background:var(--dark-bg);
  overflow:hidden;
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.48;
  z-index:0;
}
.page-hero-bg::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(8,12,28,.88) 0%,rgba(15,23,42,.72) 50%,rgba(30,41,59,.38) 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:24px;
}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb-sep{opacity:.45}
.hero-category{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.25);
  color:#fff;
  font-size:13px;
  font-weight:700;
  padding:7px 18px;
  border-radius:999px;
  margin-bottom:18px;
  backdrop-filter:blur(6px);
}
.page-hero h1{
  font-size:44px;
  line-height:1.25;
  font-weight:800;
  max-width:820px;
  margin:0 0 20px;
  letter-spacing:1px;
}
.hero-meta{
  display:flex;
  align-items:center;
  gap:22px;
  color:rgba(255,255,255,.78);
  font-size:14px;
  flex-wrap:wrap;
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}

/* ---------- Article Card ---------- */
.article-section{padding:0 0 40px}
.article-card{
  background:var(--white);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  padding:54px 60px;
  margin-top:-70px;
  position:relative;
  z-index:3;
  border:1px solid rgba(226,232,240,.6);
}
.article-content{max-width:860px;margin:0 auto}
.article-content p{
  font-size:16.5px;
  line-height:1.95;
  color:#374151;
  margin-bottom:1.6rem;
}
.article-content h2{
  font-size:25px;
  font-weight:800;
  color:var(--text);
  margin:2.4rem 0 1.2rem;
  padding-left:16px;
  border-left:5px solid var(--primary);
  line-height:1.4;
}
.article-content h3{
  font-size:20px;
  font-weight:750;
  color:var(--text);
  margin:2rem 0 1rem;
}
.article-content ul,.article-content ol{
  margin:0 0 1.6rem 22px;
  line-height:1.9;
  color:#374151;
}
.article-content li{margin-bottom:8px}
.article-content blockquote{
  margin:2rem 0;
  padding:22px 28px;
  background:var(--primary-light);
  border-left:4px solid var(--primary);
  border-radius:0 14px 14px 0;
  color:var(--text);
  font-weight:500;
}
.article-content img{
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-md);
  margin:1.8rem 0;
}
.article-content a{color:var(--primary);font-weight:600;text-decoration:underline}
.article-content a:hover{color:var(--accent)}

.article-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:36px;
  padding-top:28px;
  border-top:1px solid var(--border);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:#f1f5f9;
  color:var(--text-weak);
  font-size:13px;
  font-weight:600;
  padding:7px 16px;
  border-radius:999px;
  transition:var(--transition);
}
.tag:hover{background:var(--primary-light);color:var(--primary)}
.article-nav{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-top:42px;
  padding-top:34px;
  border-top:1px solid var(--border);
}
.not-found-box{
  text-align:center;
  padding:40px 20px;
}
.not-found-box i{
  font-size:48px;
  color:var(--accent);
  margin-bottom:18px;
}
.not-found-box h2{
  font-size:30px;
  font-weight:800;
  margin-bottom:12px;
  border:none;
  padding:0;
}
.not-found-box p{color:var(--text-weak);margin-bottom:26px}

/* ---------- Section Titles ---------- */
.section-head{
  text-align:center;
  max-width:640px;
  margin:0 auto 56px;
}
.section-head .section-kicker{
  display:inline-block;
  background:var(--primary-light);
  color:var(--primary);
  font-size:13px;
  font-weight:800;
  padding:6px 18px;
  border-radius:999px;
  letter-spacing:1px;
  margin-bottom:16px;
  text-transform:uppercase;
}
.section-head h2{
  font-size:34px;
  font-weight:800;
  line-height:1.3;
  margin:0 0 14px;
  color:var(--text);
}
.section-head p{
  color:var(--text-weak);
  font-size:16px;
  line-height:1.7;
}

/* ---------- Related / Grid ---------- */
.related-section{background:var(--white);padding:88px 0 100px;border-top:1px solid var(--border)}
.related-card{
  display:flex;
  flex-direction:column;
  background:var(--white);
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
  height:100%;
}
.related-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(37,99,235,.25);
}
.related-card-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--dark-bg);
}
.related-card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.related-card:hover .related-card-media img{transform:scale(1.06)}
.related-card-media::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,0) 50%,rgba(0,0,0,.25) 100%);
}
.card-badge{
  position:absolute;
  top:16px;
  left:16px;
  z-index:2;
  background:rgba(11,18,32,.75);
  backdrop-filter:blur(8px);
  color:#fff;
  font-size:12px;
  font-weight:700;
  padding:5px 14px;
  border-radius:999px;
}
.card-play{
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%) scale(.85);
  width:50px;height:50px;
  border-radius:50%;
  background:rgba(255,255,255,.92);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  z-index:2;
  opacity:0;
  transition:var(--transition);
  box-shadow:0 10px 30px rgba(0,0,0,.25);
}
.related-card:hover .card-play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.related-card-body{
  padding:24px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.related-card-body h3{
  font-size:17px;
  font-weight:750;
  line-height:1.5;
  margin:0 0 10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-card-body p{
  color:var(--text-weak);
  font-size:14px;
  line-height:1.65;
  margin:0 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  flex:1;
}
.related-card-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:var(--text-weak);
  font-size:13px;
}
.read-more{color:var(--primary);font-weight:700}
.empty-tip{text-align:center;color:var(--text-weak);padding:30px;font-size:15px}

/* ---------- FAQ ---------- */
.faq-section{padding:88px 0 60px}
.faq-grid{
  max-width:820px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:0;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item[open]{
  border-color:rgba(37,99,235,.35);
  box-shadow:var(--shadow-md);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  transition:var(--transition);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary i{
  color:var(--primary);
  font-size:14px;
  transition:transform .3s ease;
}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-body{
  padding:0 24px 22px;
  color:var(--text-weak);
  font-size:15px;
  line-height:1.8;
}

/* ---------- CTA ---------- */
.cta-section{padding:60px 0 96px}
.cta-box{
  position:relative;
  border-radius:28px;
  overflow:hidden;
  padding:80px 60px;
  text-align:center;
  color:#fff;
  background-size:cover;
  background-position:center;
}
.cta-box::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(6,10,25,.86) 0%,rgba(37,99,235,.72) 100%);
}
.cta-box .container{position:relative;z-index:1}
.cta-box h2{
  font-size:36px;
  font-weight:800;
  margin:0 0 16px;
  letter-spacing:1px;
}
.cta-box p{
  font-size:16px;
  color:rgba(255,255,255,.82);
  max-width:560px;
  margin:0 auto 36px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  justify-content:center;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--dark-bg);
  color:rgba(255,255,255,.72);
  padding:70px 0 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.2fr 1.8fr;
  gap:52px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .footer-logo{
  font-size:22px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand p{
  font-size:14.5px;
  line-height:1.8;
  max-width:380px;
}
.footer-links{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.footer-link-group h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
}
.footer-link-group a{
  display:block;
  color:rgba(255,255,255,.62);
  font-size:14px;
  padding:6px 0;
  transition:var(--transition);
}
.footer-link-group a:hover{color:#fff;padding-left:6px}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:28px;
  flex-wrap:wrap;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.4);
}
.footer-bottom p{margin:0}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .article-card{padding:40px 36px}
  .page-hero h1{font-size:38px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .cta-box{padding:60px 32px}
}
@media(max-width:768px){
  .main-nav,.header-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px}
  .brand-text{font-size:17px}
  .page-hero{padding:120px 0 90px}
  .page-hero h1{font-size:28px}
  .hero-meta{gap:14px;flex-direction:column;align-items:flex-start}
  .article-card{padding:28px 20px;margin-top:-52px}
  .article-content p{font-size:15.5px}
  .section-head h2{font-size:28px}
  .related-section{padding:64px 0 70px}
  .faq-section{padding:64px 0 30px}
  .cta-box{padding:48px 20px}
  .cta-box h2{font-size:26px}
  .footer-links{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .footer-links{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .page-hero h1{font-size:23px}
  .hero-category{font-size:12px}
  .article-card{padding:24px 16px;border-radius:16px}
  .article-nav .btn{width:100%}
  .section-head h2{font-size:24px}
}

/* roulang page: category2 */
:root {
      --primary: #c8102e;
      --primary-hover: #a70e26;
      --primary-soft: rgba(200, 16, 46, 0.16);
      --accent: #f5b50a;
      --accent-hover: #e0a407;
      --bg-deep: #0b0e13;
      --bg-dark: #10151c;
      --bg-card: #171e27;
      --bg-elev: #1d2633;
      --text-main: #f2f4f7;
      --text-weak: #a8b3bf;
      --text-mute: #6e7a87;
      --border: rgba(255, 255, 255, 0.09);
      --border-light: rgba(255, 255, 255, 0.16);
      --radius-sm: 10px;
      --radius-md: 18px;
      --radius-lg: 28px;
      --shadow-md: 0 14px 36px rgba(0, 0, 0, 0.45);
      --shadow-lg: 0 30px 70px rgba(0, 0, 0, 0.55);
      --section-space: clamp(64px, 8vw, 100px);
      --header-height: 76px;
      --font-body: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font-body);
      background: var(--bg-deep);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    ul, ol { margin: 0; padding: 0; list-style: none; }
    h1, h2, h3, h4, p { margin: 0; }
    :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

    .container { max-width: 1220px; margin: 0 auto; padding: 0 24px; }
    .section { padding: var(--section-space) 0; position: relative; }
    .section-head { max-width: 720px; margin-bottom: 48px; }
    .section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
    .section-head .eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--accent); font-size: 14px; letter-spacing: 1.5px;
      font-weight: 700; margin-bottom: 12px; text-transform: uppercase;
    }
    .section-head h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; line-height: 1.25; letter-spacing: -0.02em; }
    .section-head p { color: var(--text-weak); font-size: 16px; margin-top: 14px; }

    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 10px;
      padding: 13px 26px; border-radius: 999px; font-weight: 700; font-size: 15px;
      border: 1px solid transparent; cursor: pointer; line-height: 1.2;
      transition: all .25s ease; white-space: nowrap;
    }
    .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 24px rgba(200, 16, 46, 0.32); }
    .btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(200, 16, 46, 0.42); }
    .btn-primary:active { transform: translateY(0); box-shadow: 0 6px 16px rgba(200, 16, 46, 0.3); }
    .btn-accent { background: var(--accent); color: #131313; }
    .btn-accent:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(245, 181, 10, 0.3); }
    .btn-accent:active { transform: translateY(0); }
    .btn-ghost { background: transparent; border-color: var(--border-light); color: var(--text-main); }
    .btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: rgba(245, 181, 10, 0.08); transform: translateY(-2px); }
    .btn-ghost:active { transform: translateY(0); }
    .btn-lg { padding: 16px 34px; font-size: 16px; }

    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 7px 14px; border-radius: 999px; font-size: 13px; font-weight: 600;
      border: 1px solid var(--border-light); background: rgba(255, 255, 255, 0.06);
      color: var(--text-weak);
    }
    .badge-accent { color: var(--accent); border-color: rgba(245, 181, 10, 0.35); background: rgba(245, 181, 10, 0.12); }
    .badge-primary { color: #ffdce2; border-color: rgba(200, 16, 46, 0.4); background: var(--primary-soft); }

    .site-header {
      position: sticky; top: 0; z-index: 100;
      height: var(--header-height);
      background: rgba(11, 14, 19, 0.82);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border);
    }
    .header-inner {
      height: var(--header-height);
      display: flex; align-items: center; justify-content: space-between; gap: 24px;
    }
    .brand { display: inline-flex; align-items: center; gap: 10px; min-width: 0; }
    .brand-mark {
      width: 38px; height: 38px; border-radius: 12px;
      background: linear-gradient(135deg, var(--primary), #e64052);
      display: grid; place-items: center; color: #fff; font-size: 17px;
      box-shadow: 0 6px 16px rgba(200, 16, 46, 0.35); flex-shrink: 0;
    }
    .brand-text { font-weight: 800; font-size: 18px; letter-spacing: -0.01em; white-space: nowrap; color: var(--text-main); }
    .main-nav { display: flex; align-items: center; gap: 6px; }
    .nav-link {
      display: inline-flex; align-items: center; padding: 10px 18px;
      border-radius: 999px; color: var(--text-weak); font-weight: 600; font-size: 15px;
      border: 1px solid transparent; transition: all .2s;
    }
    .nav-link:hover { color: var(--text-main); background: rgba(255, 255, 255, 0.06); }
    .nav-link:active { transform: scale(0.97); }
    .nav-link.active { color: #fff; background: var(--primary-soft); border-color: rgba(200, 16, 46, 0.35); }
    .header-actions { display: flex; align-items: center; gap: 14px; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border-radius: 12px;
      border: 1px solid var(--border); background: var(--bg-card);
      color: var(--text-main); font-size: 18px;
      align-items: center; justify-content: center; cursor: pointer;
      transition: all .2s;
    }
    .menu-toggle:hover { border-color: var(--accent); color: var(--accent); }
    .menu-toggle.is-active { border-color: var(--accent); color: var(--accent); }

    .page-hero {
      position: relative; padding: clamp(80px, 10vw, 140px) 0;
      background-size: cover; background-position: center;
      isolation: isolate; overflow: hidden;
    }
    .page-hero::before {
      content: ""; position: absolute; inset: 0; z-index: -1;
      background: linear-gradient(90deg, rgba(9, 12, 17, 0.96) 0%, rgba(9, 12, 17, 0.78) 42%, rgba(9, 12, 17, 0.35) 100%);
    }
    .page-hero::after {
      content: ""; position: absolute; inset: auto 0 0 0; height: 160px; z-index: -1;
      background: linear-gradient(to top, var(--bg-deep), transparent);
      pointer-events: none;
    }
    .page-hero-inner { max-width: 780px; }
    .page-hero .badge { margin-bottom: 18px; }
    .page-hero h1 {
      font-size: clamp(32px, 5vw, 54px); font-weight: 900;
      line-height: 1.18; letter-spacing: -0.03em; margin: 6px 0 18px;
    }
    .page-hero .lead { color: var(--text-weak); font-size: clamp(16px, 2vw, 19px); line-height: 1.9; margin-bottom: 34px; max-width: 640px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

    .grid-x > .cell { display: flex; }
    .grid-x > .cell > .channel-card,
    .grid-x > .cell > .article-card,
    .grid-x > .cell > .step-card,
    .grid-x > .cell > .stat-item { width: 100%; }

    .channel-section { background: var(--bg-deep); }
    .channel-card {
      position: relative; display: flex; flex-direction: column;
      background: linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015));
      border: 1px solid var(--border); border-radius: var(--radius-md);
      padding: 28px; overflow: hidden; transition: all .3s ease;
    }
    .channel-card::after {
      content: ""; position: absolute; right: -40px; top: -40px;
      width: 120px; height: 120px; border-radius: 50%;
      background: radial-gradient(circle, rgba(200, 16, 46, 0.16), transparent 70%);
      transition: transform .35s; pointer-events: none;
    }
    .channel-card:hover {
      border-color: rgba(200, 16, 46, 0.5); transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      background: linear-gradient(145deg, rgba(200, 16, 46, 0.1), rgba(255, 255, 255, 0.02));
    }
    .channel-card:hover::after { transform: scale(1.5); }
    .channel-icon {
      width: 52px; height: 52px; border-radius: 14px;
      display: grid; place-items: center;
      background: var(--primary-soft); color: #ff8b98; font-size: 21px;
      margin-bottom: 20px; border: 1px solid rgba(200, 16, 46, 0.25);
    }
    .channel-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
    .channel-card p { color: var(--text-weak); font-size: 14.5px; line-height: 1.75; margin-bottom: 18px; flex: 1; }
    .channel-link { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-size: 14px; font-weight: 600; }
    .channel-link i { transition: transform .2s; }
    .channel-link:hover i { transform: translateX(5px); }

    .articles-section { background: var(--bg-dark); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
    .article-card {
      display: flex; flex-direction: column;
      background: var(--bg-card); border: 1px solid var(--border);
      border-radius: var(--radius-md); overflow: hidden; transition: all .3s ease;
    }
    .article-card:hover { transform: translateY(-4px); border-color: var(--border-light); box-shadow: var(--shadow-lg); }
    .article-cover { position: relative; height: 180px; overflow: hidden; }
    .article-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
    .article-card:hover .article-cover img { transform: scale(1.06); }
    .cover-tag {
      position: absolute; left: 14px; top: 14px;
      padding: 5px 12px; border-radius: 999px; font-size: 12px; font-weight: 700;
      background: rgba(11, 14, 19, 0.7); color: var(--accent);
      border: 1px solid rgba(245, 181, 10, 0.35); backdrop-filter: blur(6px);
    }
    .article-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
    .article-body .meta { display: flex; align-items: center; gap: 12px; color: var(--text-mute); font-size: 12.5px; margin-bottom: 10px; }
    .article-body .meta .badge { padding: 4px 10px; font-size: 11px; }
    .article-body h3 { font-size: 17px; line-height: 1.5; margin-bottom: 10px; font-weight: 700; }
    .article-body p { color: var(--text-weak); font-size: 14px; line-height: 1.7; flex: 1; }
    .article-read { margin-top: 16px; color: var(--accent); font-size: 14px; font-weight: 600; display: inline-flex; align-items: center; gap: 8px; }
    .article-read i { transition: transform .2s; }
    .article-card:hover .article-read i { transform: translateX(5px); }

    .steps-section { background: var(--bg-deep); }
    .step-card {
      position: relative; display: flex; flex-direction: column;
      background: var(--bg-card); border: 1px solid var(--border);
      border-radius: var(--radius-md); padding: 30px 24px 24px;
      transition: all .3s ease;
    }
    .step-card:hover { border-color: rgba(200, 16, 46, 0.45); transform: translateY(-4px); box-shadow: var(--shadow-md); }
    .step-num {
      width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
      font-weight: 800; color: #fff; font-size: 17px;
      background: linear-gradient(135deg, var(--primary), #e64052);
      margin-bottom: 18px; box-shadow: 0 6px 16px rgba(200, 16, 46, 0.3);
    }
    .step-card h3 { font-size: 17px; margin-bottom: 8px; font-weight: 700; }
    .step-card p { color: var(--text-weak); font-size: 14px; line-height: 1.7; }

    .stats-section {
      background: linear-gradient(135deg, rgba(200, 16, 46, 0.14), rgba(11, 14, 19, 0.88) 60%);
      border-block: 1px solid var(--border);
    }
    .stat-item {
      text-align: center; padding: 30px 18px;
      border-radius: var(--radius-md); background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border); transition: all .3s ease;
    }
    .stat-item:hover { border-color: rgba(200, 16, 46, 0.45); background: rgba(200, 16, 46, 0.06); transform: translateY(-3px); }
    .stat-value { font-size: clamp(30px, 4vw, 46px); font-weight: 900; color: #fff; line-height: 1.2; letter-spacing: -0.02em; }
    .stat-value span { color: var(--accent); }
    .stat-label { margin-top: 8px; color: var(--text-weak); font-size: 14px; }

    .faq-section { background: var(--bg-dark); }
    .faq-wrap { max-width: 880px; margin: 0 auto; }
    .accordion { background: transparent; border: 0; margin: 0; }
    .accordion-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;
    }
    .accordion-item.is-active { border-color: rgba(200, 16, 46, 0.45); }
    .accordion-title {
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
      padding: 20px 22px; font-size: 16px; font-weight: 700;
      color: var(--text-main); border: 0; background: transparent;
      transition: all .2s;
    }
    .accordion-title:hover, .accordion-title:focus { background: rgba(255, 255, 255, 0.03); color: var(--accent); }
    .accordion-title::after {
      content: "\f107"; font-family: "Font Awesome 6 Free"; font-weight: 900;
      color: var(--text-mute); transition: transform .3s; flex-shrink: 0;
    }
    .accordion-item.is-active .accordion-title::after { transform: rotate(180deg); color: var(--accent); }
    .accordion-content {
      border: 0; background: transparent; color: var(--text-weak);
      padding: 0 22px 22px; font-size: 15px; line-height: 1.8;
    }

    .cta-section {
      position: relative; background-size: cover; background-position: center;
      isolation: isolate; text-align: center;
      padding: calc(var(--section-space) * 0.85) 0;
    }
    .cta-section::before {
      content: ""; position: absolute; inset: 0; z-index: -1;
      background: rgba(9, 12, 17, 0.84);
    }
    .cta-inner { max-width: 680px; margin: 0 auto; }
    .cta-inner h2 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; margin-bottom: 16px; letter-spacing: -0.02em; }
    .cta-inner p { color: var(--text-weak); font-size: 16px; margin-bottom: 30px; }
    .cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

    .site-footer { background: #080b0f; border-top: 1px solid var(--border); padding: 64px 0 0; }
    .footer-grid { display: flex; justify-content: space-between; gap: 48px; padding-bottom: 44px; flex-wrap: wrap; }
    .footer-brand { max-width: 360px; }
    .footer-logo { font-size: 20px; font-weight: 800; color: #fff; letter-spacing: -0.02em; margin-bottom: 14px; }
    .footer-brand p { color: var(--text-mute); font-size: 14px; line-height: 1.8; }
    .footer-links { display: flex; gap: 60px; flex-wrap: wrap; }
    .footer-link-group { display: flex; flex-direction: column; gap: 10px; min-width: 120px; }
    .footer-link-group h4 { color: var(--text-main); font-size: 15px; margin-bottom: 4px; }
    .footer-link-group a { color: var(--text-mute); font-size: 14px; transition: color .2s; }
    .footer-link-group a:hover { color: var(--accent); }
    .footer-bottom {
      border-top: 1px solid var(--border); padding: 20px 0;
      display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
      color: var(--text-mute); font-size: 13px;
    }

    @media (max-width: 1024px) {
      .header-inner { gap: 16px; }
      .nav-link { padding: 10px 14px; }
    }

    @media (max-width: 768px) {
      .main-nav {
        position: fixed; top: var(--header-height); left: 0; right: 0;
        flex-direction: column; align-items: stretch; gap: 8px;
        background: rgba(11, 14, 19, 0.98);
        padding: 16px 20px 22px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        display: none;
      }
      .main-nav.open { display: flex; }
      .nav-link { padding: 14px 16px; font-size: 16px; }
      .menu-toggle { display: inline-flex; }
      .footer-grid { flex-direction: column; gap: 32px; }
      .footer-links { gap: 32px; }
    }

    @media (max-width: 520px) {
      :root { --header-height: 64px; }
      .container { padding: 0 18px; }
      .brand-mark { display: none; }
      .brand-text { font-size: 15px; }
      .header-actions { gap: 10px; }
      .header-actions .btn { padding: 10px 14px; font-size: 13px; }
      .hero-actions, .cta-actions { flex-direction: column; align-items: stretch; }
      .btn { width: 100%; }
      .step-card { padding: 22px 18px 18px; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }