/* roulang page: index */
/* ============ 设计变量 ============ */
:root {
  --primary: #00B368;
  --primary-dark: #00754A;
  --primary-light: #4CD695;
  --accent: #FF6D00;
  --accent-light: #FFA040;
  --gold: #FFC845;
  --bg-dark: #08130D;
  --bg-section: #F2F7F4;
  --bg-card: #FFFFFF;
  --text-main: #14241B;
  --text-muted: #5B6F64;
  --border: #E2EDE6;
  --gradient-main: linear-gradient(135deg, #08130D 0%, #0D3B24 55%, #00754A 100%);
  --gradient-accent: linear-gradient(135deg, #00B368 0%, #00D27A 100%);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 2px 8px rgba(0, 60, 30, 0.06);
  --shadow-hover: 0 8px 24px rgba(0, 90, 50, 0.12);
  --shadow-accent: 0 2px 8px rgba(255, 110, 0, 0.2);
  --font-sans: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-num: 'DIN Alternate', 'Roboto Mono', monospace;
  --header-h: 64px;
  --channel-h: 48px;
}

/* ============ Reset / 基础 ============ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: #fff;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-dark); }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; line-height: 1.3; font-weight: 800; color: var(--text-main); }
p { margin: 0 0 1em; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ============ 布局 ============ */
.section { padding: 96px 0; }
.section-light { background: var(--bg-section); }
.section-dark { background: var(--bg-dark); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head .section-tag { display: inline-block; background: rgba(0,179,104,.1); color: var(--primary-dark); font-size: 13px; font-weight: 600; padding: 4px 14px; border-radius: 999px; letter-spacing: .5px; margin-bottom: 14px; }
.section-head h2 { font-size: 32px; font-weight: 900; margin-bottom: 12px; }
.section-head p { color: var(--text-muted); font-size: 15px; }
.section-more { text-align: right; margin-bottom: 24px; }
.section-more a { font-size: 14px; color: var(--text-muted); border: 1px solid var(--border); padding: 6px 16px; border-radius: 999px; transition: all .2s; }
.section-more a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 15px; font-weight: 600; padding: 14px 32px; border-radius: var(--radius-md);
  transition: all .25s; border: none; text-decoration: none; line-height: 1.2;
}
.btn-primary { background: var(--gradient-accent); color: #fff; box-shadow: 0 4px 14px rgba(0,179,104,.3); }
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,179,104,.4); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(0,179,104,.3); }
.btn-secondary { background: #fff; color: var(--primary-dark); border: 1px solid var(--primary); }
.btn-secondary:hover { background: rgba(0,179,104,.08); color: var(--primary-dark); }
.btn-secondary:active { background: rgba(0,179,104,.15); }
.btn-outline-light { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.6); }
.btn-outline-light:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; }
.btn-lg { padding: 16px 44px; font-size: 16px; border-radius: 14px; }
.btn-sm { padding: 8px 20px; font-size: 13px; border-radius: 10px; }
.btn-accent { background: linear-gradient(135deg, var(--accent) 0%, #FF8A00 100%); color: #fff; box-shadow: 0 4px 14px rgba(255,109,0,.3); }
.btn-accent:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,109,0,.4); }

/* ============ 导航 ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(8,19,13,.9); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 2px 12px rgba(0,0,0,.2);
}
.header-brand-row { height: var(--header-h); display: flex; align-items: center; }
.brand-row-inner { display: flex; align-items: center; gap: 24px; width: 100%; }
.brand-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.brand-icon {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--gradient-accent); display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 17px; box-shadow: 0 2px 10px rgba(0,179,104,.4);
}
.brand-name { font-size: 22px; font-weight: 900; color: #fff; letter-spacing: .5px; line-height: 1; }
.brand-name span { background: linear-gradient(90deg, var(--primary-light), var(--accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.header-search-wrap { flex: 1; display: flex; justify-content: flex-end; }
.header-search { position: relative; width: 300px; max-width: 100%; }
.header-search input {
  width: 100%; height: 40px; border-radius: 999px; border: 1px solid rgba(255,255,255,.15);
  background: rgba(255,255,255,.1); padding: 0 44px 0 18px; color: #fff; font-size: 14px; outline: none;
  transition: all .25s;
}
.header-search input::placeholder { color: rgba(255,255,255,.55); }
.header-search input:focus { border-color: var(--primary); background: rgba(255,255,255,.16); }
.header-search button {
  position: absolute; right: 4px; top: 4px; width: 32px; height: 32px; border-radius: 50%;
  background: var(--gradient-accent); color: #fff; font-size: 13px; display: flex; align-items: center; justify-content: center;
  transition: all .25s;
}
.header-search button:hover { transform: scale(1.06); }
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.header-link { color: rgba(255,255,255,.8); font-size: 14px; text-decoration: none; padding: 6px 8px; transition: color .2s; }
.header-link:hover { color: var(--primary-light); }
.header-channel-row {
  border-top: 1px solid rgba(255,255,255,.08);
  height: var(--channel-h); display: flex; align-items: center;
}
.channel-nav { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; }
.channel-nav::-webkit-scrollbar { display: none; }
.channel-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 18px; border-radius: 999px; font-size: 14px; font-weight: 500;
  color: rgba(255,255,255,.75); background: rgba(255,255,255,.06);
  text-decoration: none; transition: all .25s; white-space: nowrap;
}
.channel-link:hover { background: rgba(0,179,104,.25); color: #fff; }
.channel-link.active { background: var(--gradient-accent); color: #fff; font-weight: 600; box-shadow: 0 2px 8px rgba(0,179,104,.35); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; margin-left: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: all .3s; }
.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); }
.mobile-nav {
  display: none; background: rgba(8,19,13,.98); border-top: 1px solid rgba(255,255,255,.08);
  padding: 16px 24px;
}
.mobile-nav a {
  display: block; padding: 12px 8px; color: rgba(255,255,255,.8); font-size: 15px; text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a.active { color: var(--primary-light); font-weight: 600; }

/* ============ Hero ============ */
.hero-section {
  position: relative; min-height: 92vh; display: flex; align-items: center;
  background: var(--gradient-main); overflow: hidden; color: #fff;
}
.hero-bg {
  position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center; opacity: .28; z-index: 0;
}
.hero-grid-overlay {
  position: absolute; inset: 0; z-index: 1;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero-glow {
  position: absolute; right: -80px; top: -80px; width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(255,109,0,.25) 0%, transparent 70%);
  filter: blur(80px); z-index: 1; border-radius: 50%;
}
.hero-container { position: relative; z-index: 2; width: 100%; padding: 0 24px; max-width: 1200px; margin: 0 auto; }
.hero-grid { display: flex; align-items: center; gap: 56px; }
.hero-content { flex: 1; padding: 60px 0; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18); padding: 6px 18px; border-radius: 999px;
  font-size: 13px; font-weight: 500; color: rgba(255,255,255,.9); backdrop-filter: blur(6px);
  margin-bottom: 24px;
}
.hero-badge i { color: var(--gold); }
.hero-content h1 { font-size: 48px; font-weight: 900; color: #fff; line-height: 1.15; margin-bottom: 12px; }
.hero-content h1 .highlight {
  background: linear-gradient(90deg, var(--primary-light) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-subtitle { font-size: 17px; color: rgba(255,255,255,.82); line-height: 1.8; margin-bottom: 34px; max-width: 520px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 48px; flex-wrap: wrap; }
.hero-stat {}
.hero-stat .stat-num {
  font-family: var(--font-num); font-size: 28px; font-weight: 800; color: var(--gold); display: block; line-height: 1.2;
}
.hero-stat .stat-label { font-size: 13px; color: rgba(255,255,255,.7); }
.hero-visual { flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.phone-card {
  width: 280px; background: #0b0b0f; border-radius: 32px; padding: 10px;
  box-shadow: 0 24px 60px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.08);
  position: relative;
}
.phone-screen {
  position: relative; border-radius: 24px; overflow: hidden; aspect-ratio: 9/16; background: #000;
}
.phone-screen img { width: 100%; height: 100%; object-fit: cover; }
.phone-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.85) 0%, transparent 45%); }
.phone-play {
  position: absolute; top: 45%; left: 50%; transform: translate(-50%, -50%);
  width: 56px; height: 56px; border-radius: 50%; background: var(--accent); color: #fff;
  font-size: 20px; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 0 6px rgba(255,255,255,.2), 0 8px 20px rgba(255,109,0,.4);
  transition: transform .3s;
}
.phone-play:hover { transform: translate(-50%, -50%) scale(1.1); }
.phone-bottom { position: absolute; left: 0; right: 0; bottom: 0; padding: 20px 16px 16px; z-index: 3; }
.phone-progress { height: 3px; background: rgba(255,255,255,.25); border-radius: 2px; margin-bottom: 14px; overflow: hidden; }
.phone-progress span { display: block; width: 64%; height: 100%; background: var(--accent); border-radius: 2px; }
.phone-title { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 10px; line-height: 1.4; }
.phone-stats { display: flex; gap: 16px; font-size: 12px; color: rgba(255,255,255,.8); }
.phone-stats i { margin-right: 3px; color: var(--accent-light); }

/* ============ 爆款片段卡矩阵 ============ */
.hot-videos-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.video-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 3/4;
  background: #111; cursor: pointer; box-shadow: var(--shadow-card); transition: box-shadow .3s, transform .3s;
}
.video-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s; }
.video-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.video-card:hover img { transform: scale(1.04); }
.video-card .video-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.75) 0%, rgba(0,0,0,.05) 45%, transparent 60%); }
.video-card .play-badge {
  position: absolute; top: 48%; left: 50%; transform: translate(-50%, -50%) scale(0.8);
  width: 46px; height: 46px; border-radius: 50%; background: rgba(255,255,255,.95); color: var(--primary-dark);
  display: flex; align-items: center; justify-content: center; font-size: 15px;
  opacity: 0; transition: all .3s;
}
.video-card:hover .play-badge { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-card .hot-tag {
  position: absolute; top: 14px; left: 14px; background: linear-gradient(135deg, #FF4D00, #FF8A00);
  color: #fff; font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px;
  box-shadow: 0 2px 8px rgba(255,77,0,.4); display: flex; align-items: center; gap: 4px; z-index: 2;
}
.video-card .video-info { position: absolute; left: 0; right: 0; bottom: 0; padding: 18px 16px; z-index: 2; }
.video-card .video-info h3 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 8px; line-height: 1.5; }
.video-card .video-meta { display: flex; gap: 14px; font-size: 12px; color: rgba(255,255,255,.75); }
.video-card .video-meta i { color: var(--gold); margin-right: 3px; }

/* ============ 种草清单 ============ */
.shop-scroll { display: flex; gap: 16px; overflow-x: auto; padding: 8px 4px 18px; scrollbar-width: thin; scrollbar-color: var(--primary) transparent; }
.shop-scroll::-webkit-scrollbar { height: 4px; }
.shop-scroll::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 4px; }
.shop-scroll::-webkit-scrollbar-track { background: transparent; }
.shop-card {
  flex: 0 0 230px; background: var(--bg-card); border-radius: 16px; overflow: hidden;
  box-shadow: var(--shadow-card); border: 1px solid var(--border); transition: all .3s;
  text-decoration: none; color: var(--text-main); display: block;
}
.shop-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: rgba(0,179,104,.3); text-decoration: none; color: var(--text-main); }
.shop-card .shop-img { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--bg-section); }
.shop-card .shop-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.shop-card:hover .shop-img img { transform: scale(1.04); }
.shop-card .wish-btn {
  position: absolute; right: 10px; top: 10px; width: 30px; height: 30px; border-radius: 50%;
  background: rgba(255,255,255,.9); display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 13px; transition: all .25s;
}
.shop-card .wish-btn:hover, .shop-card .wish-btn.wished { background: var(--accent); color: #fff; }
.shop-card .shop-body { padding: 14px; }
.shop-card .shop-name { font-size: 14px; font-weight: 600; margin-bottom: 4px; line-height: 1.4; }
.shop-card .shop-tag { font-size: 12px; color: var(--text-muted); margin-bottom: 8px; }
.shop-card .shop-foot { display: flex; align-items: center; justify-content: space-between; }
.shop-card .shop-price { font-size: 16px; font-weight: 800; color: var(--accent); font-family: var(--font-num); }
.shop-card .shop-buy { font-size: 13px; color: var(--primary); font-weight: 600; }
.shop-card .shop-buy:hover { text-decoration: underline; }
.shop-scroll-wrap { position: relative; }
.shop-scroll-fade { position: absolute; right: 0; top: 0; bottom: 0; width: 60px; background: linear-gradient(to left, #fff, transparent); pointer-events: none; }

/* ============ 评论口碑条 ============ */
.testi-wrap { display: flex; gap: 24px; overflow-x: auto; padding: 8px 4px 16px; scrollbar-width: thin; }
.testi-wrap::-webkit-scrollbar { height: 4px; }
.testi-wrap::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.testi-card {
  flex: 0 0 300px; background: var(--bg-card); border-radius: 16px; padding: 22px;
  border: 1px solid var(--border); box-shadow: var(--shadow-card); transition: box-shadow .3s;
}
.testi-card:hover { box-shadow: var(--shadow-hover); }
.testi-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.testi-avatar { width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 700; color: #fff; }
.testi-user { font-size: 14px; font-weight: 600; }
.testi-time { font-size: 12px; color: var(--text-muted); }
.testi-stars { color: var(--gold); font-size: 12px; margin-bottom: 10px; letter-spacing: 2px; }
.testi-text { font-size: 14px; line-height: 1.7; color: var(--text-main); }
.testi-section .section-head { margin-bottom: 40px; }

/* ============ CTA ============ */
.cta-section { background: var(--gradient-main); position: relative; overflow: hidden; text-align: center; color: #fff; }
.cta-section::before {
  content: ''; position: absolute; right: -100px; top: -100px; width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,109,0,.25), transparent 70%); filter: blur(60px);
}
.cta-section::after {
  content: ''; position: absolute; left: -60px; bottom: -80px; width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(255,200,69,.15), transparent 70%); filter: blur(50px);
}
.cta-inner { position: relative; z-index: 2; max-width: 680px; margin: 0 auto; }
.cta-inner h2 { color: #fff; font-size: 36px; font-weight: 900; margin-bottom: 16px; }
.cta-inner p { color: rgba(255,255,255,.85); font-size: 16px; margin-bottom: 32px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.cta-trust { display: flex; justify-content: center; gap: 36px; flex-wrap: wrap; }
.cta-trust span { font-size: 14px; color: rgba(255,255,255,.8); display: flex; align-items: center; gap: 8px; }
.cta-trust i { color: var(--gold); font-size: 16px; }

/* ============ CMS 最新资讯 ============ */
.news-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 24px; }
.cms-feature-card {
  display: flex; flex-direction: column; background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); overflow: hidden; box-shadow: var(--shadow-card); transition: all .3s;
  text-decoration: none; color: var(--text-main);
}
.cms-feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); text-decoration: none; color: var(--text-main); }
.cms-feature-img { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--bg-section); }
.cms-feature-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.cms-feature-card:hover .cms-feature-img img { transform: scale(1.03); }
.cms-badge {
  position: absolute; left: 16px; top: 16px; background: var(--gradient-accent); color: #fff;
  font-size: 12px; font-weight: 600; padding: 4px 14px; border-radius: 999px; box-shadow: 0 2px 8px rgba(0,179,104,.3);
}
.cms-feature-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.cms-feature-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; }
.cms-feature-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cms-feature-body .cms-date { font-size: 13px; color: var(--text-muted); }
.cms-list-wrap { display: flex; flex-direction: column; gap: 14px; }
.cms-list-item {
  display: flex; align-items: center; gap: 12px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius-md); padding: 16px 18px;
  transition: all .25s; text-decoration: none; color: var(--text-main);
}
.cms-list-item:hover { border-color: rgba(0,179,104,.4); box-shadow: var(--shadow-hover); transform: translateX(3px); text-decoration: none; color: var(--text-main); }
.cms-tag {
  flex-shrink: 0; background: rgba(0,179,104,.1); color: var(--primary-dark); font-size: 12px;
  font-weight: 600; padding: 3px 12px; border-radius: 999px; white-space: nowrap;
}
.cms-title { flex: 1; font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cms-list-item .cms-date { font-size: 12px; color: var(--text-muted); flex-shrink: 0; }
.cms-empty {
  grid-column: 1 / -1; border: 2px dashed var(--border); border-radius: var(--radius-lg);
  background: var(--bg-section); text-align: center; padding: 56px 24px; color: var(--text-muted);
}
.cms-empty i { font-size: 40px; color: var(--border); display: block; margin-bottom: 12px; }
.cms-empty p { margin: 0; font-size: 15px; }

/* ============ FAQ ============ */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px;
  margin-bottom: 14px; overflow: hidden; transition: border-color .3s, box-shadow .3s;
}
.faq-item.active { border-color: rgba(0,179,104,.35); box-shadow: var(--shadow-hover); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between; padding: 20px 24px;
  font-size: 16px; font-weight: 600; cursor: pointer; color: var(--text-main); gap: 16px;
}
.faq-icon { position: relative; width: 20px; height: 20px; flex-shrink: 0; }
.faq-icon::before, .faq-icon::after {
  content: ''; position: absolute; background: var(--primary); border-radius: 2px; transition: all .3s;
}
.faq-icon::before { top: 9px; left: 0; width: 20px; height: 2px; }
.faq-icon::after { top: 0; left: 9px; width: 2px; height: 20px; }
.faq-item.active .faq-icon::after { transform: scale(0); }
.faq-item.active .faq-icon::before { background: var(--accent); }
.faq-answer { max-height: 0; padding: 0 24px; overflow: hidden; transition: all .35s ease; color: var(--text-muted); font-size: 14px; line-height: 1.8; }
.faq-item.active .faq-answer { max-height: 300px; padding: 0 24px 20px; }

/* ============ 页脚 ============ */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,.7); padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 48px; margin-bottom: 56px; }
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.65); }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255,255,255,.2);
  display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.75); font-size: 14px;
  transition: all .25s;
}
.footer-social a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(255,255,255,.6); font-size: 14px; text-decoration: none; transition: color .2s; }
.footer-col ul a:hover { color: var(--primary-light); }
.footer-contact p { font-size: 14px; margin-bottom: 8px; display: flex; gap: 8px; align-items: center; color: rgba(255,255,255,.6); }
.footer-contact i { color: var(--primary-light); width: 16px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.4); }

/* ============ 响应式 ============ */
@media (max-width: 1023px) {
  .container { padding: 0 20px; }
  .section { padding: 72px 0; }
  .hero-grid { flex-direction: column; gap: 36px; }
  .hero-content { text-align: center; padding: 40px 0 20px; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { order: -1; }
  .phone-card { width: 240px; }
  .hot-videos-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .header-search-wrap { display: none; }
}
@media (max-width: 767px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  .section-head h2 { font-size: 24px; }
  .hero-section { min-height: 80vh; }
  .hero-content h1 { font-size: 30px; }
  .hero-subtitle { font-size: 15px; }
  .hero-stats { gap: 24px; }
  .hero-stat .stat-num { font-size: 22px; }
  .phone-card { width: 200px; }
  .hot-videos-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .video-card { aspect-ratio: 3/4; }
  .video-card .video-info h3 { font-size: 13px; }
  .video-card .video-meta { font-size: 11px; gap: 8px; }
  .shop-card { flex-basis: 190px; }
  .testi-card { flex-basis: 260px; }
  .cta-inner h2 { font-size: 26px; }
  .cta-trust { gap: 16px; flex-direction: column; align-items: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .nav-toggle { display: flex; }
  .header-actions .btn, .header-actions .header-link { display: none; }
  .mobile-nav.show { display: block; }
}

/* roulang page: article */
:root {
      --primary: #00B368;
      --primary-dark: #00754A;
      --primary-light: #4CD695;
      --accent: #FF6D00;
      --accent-light: #FFA040;
      --gold: #FFC845;
      --bg-dark: #08130D;
      --bg-section: #F2F7F4;
      --bg-card: #FFFFFF;
      --text-main: #14241B;
      --text-muted: #5B6F64;
      --border: #E2EDE6;
      --radius-lg: 20px;
      --radius-md: 14px;
      --radius-sm: 10px;
      --shadow-sm: 0 2px 8px rgba(0, 60, 30, 0.06);
      --shadow-md: 0 8px 24px rgba(0, 90, 50, 0.12);
      --shadow-dark: 0 2px 8px rgba(0, 0, 0, 0.2);
      --grad-main: linear-gradient(135deg, #08130D 0%, #0D3B24 55%, #00754A 100%);
      --grad-brand: linear-gradient(135deg, #00B368 0%, #00D27A 100%);
      --grad-accent: linear-gradient(135deg, #FF6D00 0%, #FFA040 100%);
      --font-sans: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
      --font-num: 'DIN Alternate', 'Roboto Mono', monospace;
      --max-width: 1200px;
      --header-h: 64px;
      --channel-h: 48px;
      --space-section: 96px;
    }

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

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

    body {
      font-family: var(--font-sans);
      background: var(--bg-section);
      color: var(--text-main);
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    img {
      max-width: 100%;
      display: block;
      border-radius: var(--radius-md);
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s ease;
    }

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

    ul, ol {
      list-style: none;
    }

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

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

    i {
      margin-right: 4px;
    }

    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 13px 30px;
      border-radius: var(--radius-sm);
      font-size: 16px;
      font-weight: 600;
      line-height: 1.2;
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.3s ease;
      vertical-align: middle;
      white-space: nowrap;
    }

    .btn i {
      margin-right: 2px;
    }

    .btn-primary {
      background: var(--grad-brand);
      color: #fff;
      border-radius: 12px;
      box-shadow: 0 4px 14px rgba(0, 179, 104, 0.3);
    }

    .btn-primary:hover, .btn-primary:focus {
      background: linear-gradient(135deg, #00c47a 0%, #00e589 100%);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0, 179, 104, 0.35);
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 2px 8px rgba(0, 179, 104, 0.3);
    }

    .btn-outline {
      background: transparent;
      color: var(--primary-dark);
      border-color: var(--primary);
      border-radius: 12px;
    }

    .btn-outline:hover, .btn-outline:focus {
      background: rgba(0, 179, 104, 0.08);
      color: var(--primary-dark);
      border-color: var(--primary-dark);
      transform: translateY(-2px);
    }

    .btn-outline:active {
      transform: translateY(0);
    }

    .btn-light {
      background: #fff;
      color: var(--accent);
      border-radius: 999px;
      box-shadow: 0 4px 16px rgba(255, 255, 255, 0.2);
    }

    .btn-light:hover, .btn-light:focus {
      background: #fff7f0;
      color: var(--accent);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25);
    }

    .btn-small {
      padding: 9px 20px;
      font-size: 14px;
      border-radius: 10px;
    }

    .btn:focus-visible {
      outline: 3px solid rgba(0, 179, 104, 0.4);
      outline-offset: 2px;
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(8, 19, 13, 0.94);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    }

    .header-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      height: var(--header-h);
    }

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

    .brand-icon {
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--grad-brand);
      border-radius: 12px;
      color: #fff;
      font-size: 18px;
      box-shadow: 0 0 0 3px rgba(0, 179, 104, 0.18);
      transition: transform 0.3s ease;
    }

    .brand-logo:hover .brand-icon {
      transform: rotate(-8deg) scale(1.05);
    }

    .brand-name {
      font-size: 22px;
      font-weight: 900;
      letter-spacing: -0.2px;
      background: linear-gradient(90deg, #4CD695, #00D27A, #FFA040);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      white-space: nowrap;
    }

    .brand-id {
      background: rgba(255, 109, 0, 0.14);
      color: var(--accent-light);
      font-size: 11px;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: 999px;
      letter-spacing: 0.5px;
      margin-left: 2px;
      white-space: nowrap;
    }

    .header-search {
      flex: 1;
      max-width: 520px;
      display: flex;
      align-items: center;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 999px;
      padding: 7px 6px 7px 16px;
      transition: background 0.3s, border-color 0.3s;
    }

    .header-search:focus-within {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(76, 214, 149, 0.5);
    }

    .header-search input {
      flex: 1;
      background: transparent;
      border: none;
      outline: none;
      color: #eafff2;
      font-size: 14px;
      line-height: 24px;
      min-width: 0;
    }

    .header-search input::placeholder {
      color: rgba(255, 255, 255, 0.45);
    }

    .header-search .search-btn {
      background: var(--grad-brand);
      border: none;
      color: #fff;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: transform 0.25s, box-shadow 0.25s;
      flex-shrink: 0;
    }

    .header-search .search-btn i {
      margin: 0;
      font-size: 13px;
    }

    .header-search .search-btn:hover {
      transform: scale(1.08);
      box-shadow: 0 0 14px rgba(0, 210, 122, 0.4);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-shrink: 0;
    }

    .login-link {
      color: rgba(255, 255, 255, 0.8);
      font-size: 14px;
      font-weight: 500;
      transition: color 0.25s;
    }

    .login-link:hover {
      color: var(--primary-light);
    }

    .login-link i {
      margin-right: 5px;
    }

    .channel-nav {
      height: var(--channel-h);
      display: flex;
      align-items: center;
      background: transparent;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
    }

    .channel-nav-inner {
      display: flex;
      align-items: center;
      gap: 10px;
      max-width: var(--max-width);
      width: 100%;
      margin: 0 auto;
      padding: 0 24px;
      overflow-x: auto;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }

    .channel-nav-inner::-webkit-scrollbar {
      display: none;
    }

    .channel-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      color: rgba(255, 255, 255, 0.75);
      background: rgba(255, 255, 255, 0.05);
      white-space: nowrap;
      transition: all 0.25s ease;
    }

    .channel-link i {
      font-size: 13px;
      margin: 0;
    }

    .channel-link:hover, .channel-link:focus {
      background: rgba(0, 179, 104, 0.2);
      color: var(--primary-light);
    }

    .channel-link.active {
      background: var(--grad-brand);
      color: #fff;
      box-shadow: 0 3px 12px rgba(0, 179, 104, 0.3);
    }

    .nav-toggle {
      display: none;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 10px;
      width: 42px;
      height: 38px;
      color: #fff;
      font-size: 17px;
      cursor: pointer;
      align-items: center;
      justify-content: center;
      transition: background 0.25s;
    }

    .nav-toggle:hover, .nav-toggle:focus {
      background: rgba(255, 255, 255, 0.2);
    }

    .nav-toggle i {
      margin: 0;
    }

    /* ===== Article Page ===== */
    .article-page {
      background: var(--bg-section);
      padding: 40px 0 96px;
    }

    .breadcrumb {
      margin: 24px 0 32px;
      font-size: 14px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 6px;
    }

    .breadcrumb a {
      color: var(--text-muted);
      transition: color 0.25s;
    }

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

    .breadcrumb .sep {
      color: #b9c8bf;
      font-size: 12px;
    }

    .breadcrumb .current {
      color: var(--text-main);
      font-weight: 600;
      max-width: 360px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .article-card {
      background: var(--bg-card);
      border-radius: 28px;
      box-shadow: var(--shadow-sm);
      padding: 44px 56px 40px;
      border: 1px solid rgba(255, 255, 255, 0.8);
      margin-bottom: 0;
    }

    .article-header {
      margin-bottom: 40px;
      border-bottom: 1px solid var(--border);
      padding-bottom: 28px;
    }

    .article-category {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: rgba(0, 179, 104, 0.1);
      color: var(--primary-dark);
      border: 1px solid rgba(0, 179, 104, 0.22);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .article-category i {
      font-size: 12px;
      margin: 0;
    }

    .article-header h1 {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.3;
      color: #0c1e15;
      letter-spacing: -0.3px;
      margin-bottom: 20px;
      max-width: 820px;
    }

    .article-header h1 i {
      color: var(--accent);
    }

    .article-meta {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px 22px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .meta-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .meta-item i {
      color: var(--primary);
      font-size: 14px;
      margin: 0;
    }

    .avatar-row {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .author-avatar {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--grad-brand);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 12px;
    }

    .meta-divider {
      width: 1px;
      height: 14px;
      background: var(--border);
    }

    /* ===== Article Body ===== */
    .article-body {
      font-size: 16px;
      line-height: 1.85;
      color: #2b3a31;
      overflow: hidden;
    }

    .article-body > * {
      max-width: 720px;
      margin-left: auto;
      margin-right: auto;
    }

    .article-body p {
      margin-bottom: 1.5em;
      text-align: left;
    }

    .article-body > p:first-of-type {
      font-size: 18px;
      color: #1c2d24;
      font-weight: 500;
    }

    .article-body h2, .article-body h3, .article-body h4 {
      color: #0e2016;
      font-weight: 800;
      margin: 2em 0 0.8em;
      line-height: 1.35;
    }

    .article-body h2 {
      font-size: 26px;
      margin-top: 2.2em;
      padding-top: 0.4em;
      position: relative;
    }

    .article-body h2::before {
      content: "";
      display: inline-block;
      width: 5px;
      height: 22px;
      background: var(--grad-accent);
      border-radius: 999px;
      margin-right: 12px;
      vertical-align: -2px;
    }

    .article-body h3 {
      font-size: 21px;
      margin-top: 1.8em;
    }

    .article-body h4 {
      font-size: 18px;
      font-weight: 700;
      margin-top: 1.6em;
    }

    .article-body a {
      color: var(--primary-dark);
      border-bottom: 1px solid rgba(0, 179, 104, 0.4);
      transition: border-color 0.25s, color 0.25s;
    }

    .article-body a:hover {
      color: var(--accent);
      border-bottom-color: var(--accent);
    }

    .article-body blockquote {
      margin: 2em auto;
      padding: 20px 24px;
      background: #f7fbf8;
      border-left: 4px solid var(--accent);
      border-radius: 0 14px 14px 0;
      color: #40554a;
      font-size: 16px;
    }

    .article-body blockquote p {
      margin-bottom: 0.6em;
    }

    .article-body blockquote cite {
      font-style: normal;
      font-size: 13px;
      color: var(--text-muted);
    }

    .article-body img {
      border-radius: 16px;
      margin: 2em auto;
      box-shadow: var(--shadow-sm);
    }

    .article-body figure {
      margin: 2em auto;
      text-align: center;
    }

    .article-body figcaption {
      font-size: 13px;
      color: var(--text-muted);
      padding: 10px 0 0;
    }

    .article-body ul, .article-body ol {
      margin: 1.5em auto;
      padding-left: 0;
      max-width: 720px;
    }

    .article-body ul li, .article-body ol li {
      position: relative;
      padding-left: 26px;
      margin-bottom: 10px;
    }

    .article-body ul li::before {
      content: "";
      position: absolute;
      left: 4px;
      top: 12px;
      width: 8px;
      height: 8px;
      background: var(--grad-brand);
      border-radius: 50%;
    }

    .article-body ol {
      counter-reset: article-ol;
    }

    .article-body ol li {
      counter-increment: article-ol;
    }

    .article-body ol li::before {
      content: counter(article-ol);
      position: absolute;
      left: 0;
      top: 0;
      width: 20px;
      height: 20px;
      background: rgba(0, 179, 104, 0.12);
      color: var(--primary-dark);
      font-size: 12px;
      font-weight: 700;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* ===== Share ===== */
    .article-share {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 40px;
      padding-top: 26px;
      border-top: 1px solid var(--border);
      max-width: 720px;
      margin-left: auto;
      margin-right: auto;
    }

    .share-label {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-right: 6px;
    }

    .share-btn {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 9px 18px;
      border-radius: 999px;
      background: #f5faf7;
      border: 1px solid var(--border);
      color: var(--text-main);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.25s;
    }

    .share-btn i {
      margin: 0;
      font-size: 15px;
      color: var(--primary-dark);
    }

    .share-btn:hover, .share-btn:focus {
      background: var(--primary);
      border-color: var(--primary);
      color: #fff;
    }

    .share-btn:hover i, .share-btn:focus i {
      color: #fff;
    }

    /* ===== Tags ===== */
    .article-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      max-width: 720px;
      margin: 24px auto 0;
    }

    .tag-btn {
      display: inline-flex;
      align-items: center;
      padding: 7px 14px;
      background: #f5faf7;
      border: 1px solid var(--border);
      border-radius: 8px;
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
      transition: all 0.25s;
    }

    .tag-btn i {
      font-size: 11px;
      margin-right: 4px;
      color: var(--accent);
    }

    .tag-btn:hover, .tag-btn:focus {
      background: rgba(0, 179, 104, 0.08);
      border-color: var(--primary);
      color: var(--primary-dark);
    }

    /* ===== Related ===== */
    .related-section {
      margin-top: 72px;
    }

    .section-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 28px;
    }

    .section-head h2 {
      font-size: 28px;
      font-weight: 800;
      color: #0e2016;
      position: relative;
      padding-left: 16px;
    }

    .section-head h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: 6px;
      width: 5px;
      height: 26px;
      background: var(--grad-accent);
      border-radius: 999px;
    }

    .more-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary-dark);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: gap 0.25s;
    }

    .more-link i {
      font-size: 13px;
      margin: 0;
    }

    .more-link:hover {
      gap: 10px;
      color: var(--accent);
    }

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

    .related-card {
      background: #fff;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    }

    .related-card:hover, .related-card:focus {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(0, 179, 104, 0.35);
    }

    .related-cover {
      aspect-ratio: 16 / 10;
      overflow: hidden;
      position: relative;
    }

    .related-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: 0;
      transition: transform 0.4s;
    }

    .related-card:hover .related-cover img {
      transform: scale(1.04);
    }

    .related-cover .cover-tag {
      position: absolute;
      left: 14px;
      top: 14px;
      background: rgba(8, 19, 13, 0.75);
      backdrop-filter: blur(6px);
      color: #fff;
      font-size: 12px;
      font-weight: 600;
      padding: 5px 12px;
      border-radius: 999px;
      letter-spacing: 0.3px;
    }

    .related-info {
      padding: 20px 20px 18px;
    }

    .related-info h3 {
      font-size: 16px;
      font-weight: 700;
      line-height: 1.5;
      color: #14241b;
      margin-bottom: 10px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      min-height: calc(16px * 1.5 * 2);
      transition: color 0.25s;
    }

    .related-card:hover .related-info h3 {
      color: var(--primary-dark);
    }

    .related-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-muted);
    }

    .related-meta .r-date {
      font-family: var(--font-num);
    }

    .related-meta .r-views i {
      font-size: 12px;
      margin-right: 4px;
    }

    /* ===== Back ===== */
    .article-back {
      margin-top: 56px;
      text-align: center;
    }

    .article-back .btn {
      min-width: 200px;
    }

    /* ===== Not Found ===== */
    .not-found {
      background: #fff;
      border: 2px dashed var(--border);
      border-radius: 28px;
      padding: 80px 30px;
      text-align: center;
      margin: 40px 0;
    }

    .not-found-icon {
      width: 88px;
      height: 88px;
      border-radius: 50%;
      background: rgba(0, 179, 104, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 24px;
      font-size: 36px;
      color: var(--primary);
    }

    .not-found h2 {
      font-size: 28px;
      font-weight: 800;
      color: #14241b;
      margin-bottom: 12px;
    }

    .not-found p {
      color: var(--text-muted);
      font-size: 15px;
      margin-bottom: 28px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--bg-dark);
      color: rgba(255, 255, 255, 0.82);
      padding: 68px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 48px;
      padding-bottom: 48px;
    }

    .footer-brand .brand-logo {
      margin-bottom: 18px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.6);
      margin-top: 4px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
      margin-top: 22px;
    }

    .footer-social a {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, 0.75);
      font-size: 16px;
      transition: all 0.3s;
    }

    .footer-social a i {
      margin: 0;
    }

    .footer-social a:hover, .footer-social a:focus {
      background: var(--grad-brand);
      color: #fff;
      transform: translateY(-2px);
    }

    .footer-col h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .footer-col ul li {
      margin-bottom: 12px;
    }

    .footer-col ul li a {
      color: rgba(255, 255, 255, 0.6);
      font-size: 14px;
      transition: color 0.25s, padding-left 0.25s;
    }

    .footer-col ul li a:hover, .footer-col ul li a:focus {
      color: var(--primary-light);
      padding-left: 4px;
    }

    .footer-contact p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.6);
      margin-bottom: 12px;
    }

    .footer-contact p i {
      width: 22px;
      color: var(--primary-light);
      margin-right: 8px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 20px 0;
      text-align: center;
    }

    .footer-bottom p {
      font-size: 12px;
      color: rgba(255, 255, 255, 0.4);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
      .related-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .article-card {
        padding: 36px 40px;
      }

      .header-search {
        max-width: 380px;
      }
    }

    @media (max-width: 767px) {
      :root {
        --space-section: 64px;
      }

      .site-header {
        position: fixed;
        width: 100%;
        top: 0;
        left: 0;
      }

      body {
        padding-top: calc(var(--header-h) + var(--channel-h));
      }

      .header-top {
        height: var(--header-h);
      }

      .header-search {
        display: none;
      }

      .header-actions .login-link span {
        display: none;
      }

      .header-actions .btn-small {
        padding: 8px 14px;
        font-size: 13px;
      }

      .nav-toggle {
        display: flex;
      }

      .channel-nav {
        height: var(--channel-h);
        background: rgba(8, 19, 13, 0.98);
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
      }

      .channel-nav-inner {
        gap: 8px;
        padding: 0 16px;
      }

      .channel-link {
        padding: 7px 13px;
        font-size: 13px;
      }

      .article-page {
        padding: 24px 0 64px;
      }

      .breadcrumb {
        margin: 12px 0 20px;
        font-size: 13px;
        gap: 4px;
      }

      .breadcrumb .current {
        max-width: 180px;
      }

      .article-card {
        padding: 28px 20px;
        border-radius: 20px;
      }

      .article-header h1 {
        font-size: 28px;
        line-height: 1.35;
        margin-bottom: 18px;
      }

      .article-meta {
        gap: 8px 14px;
        font-size: 13px;
      }

      .meta-divider {
        display: none;
      }

      .article-body {
        font-size: 15px;
        line-height: 1.8;
      }

      .article-body > p:first-of-type {
        font-size: 16px;
      }

      .article-body h2 {
        font-size: 22px;
      }

      .article-body h3 {
        font-size: 19px;
      }

      .article-share {
        gap: 8px;
        margin-top: 32px;
      }

      .share-btn {
        padding: 8px 13px;
        font-size: 13px;
      }

      .article-tags {
        gap: 8px;
      }

      .related-section {
        margin-top: 48px;
      }

      .section-head h2 {
        font-size: 22px;
      }

      .related-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .related-card {
        border-radius: 16px;
      }

      .related-cover {
        aspect-ratio: 16/8;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
        padding-bottom: 36px;
      }

      .footer-bottom p {
        font-size: 11px;
      }

      .not-found {
        padding: 56px 20px;
      }

      .not-found h2 {
        font-size: 24px;
      }

      .article-back .btn {
        width: 100%;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }

      .header-actions .login-link {
        display: none;
      }

      .brand-name {
        font-size: 19px;
      }

      .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 16px;
      }

      .article-header h1 {
        font-size: 24px;
      }

      .article-meta .meta-item {
        font-size: 12px;
      }

      .article-body blockquote {
        padding: 16px 18px;
        font-size: 15px;
      }

      .share-label {
        width: 100%;
        margin-bottom: 2px;
      }

      .related-info {
        padding: 16px;
      }

      .related-info h3 {
        font-size: 15px;
      }
    }

/* roulang page: category1 */
:root {
  --primary: #00B368;
  --primary-dark: #00754A;
  --primary-light: #4CD695;
  --accent: #FF6D00;
  --accent-light: #FFA040;
  --gold: #FFC845;
  --bg-dark: #08130D;
  --bg-section: #F2F7F4;
  --bg-card: #FFFFFF;
  --text-main: #14241B;
  --text-muted: #5B6F64;
  --border: #E2EDE6;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(0, 60, 30, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 90, 50, 0.12);
  --gradient-main: linear-gradient(135deg, #08130D 0%, #0D3B24 55%, #00754A 100%);
  --gradient-accent: linear-gradient(135deg, #00B368 0%, #00D27A 100%);
  --font-sans: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-num: 'DIN Alternate', 'Roboto Mono', monospace;
}
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-family: var(--font-sans); font-size: 16px; line-height: 1.75; color: var(--text-main); background: #fff; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; border: 0; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--primary-dark); }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.grid-container { padding-left: 24px; padding-right: 24px; max-width: 1200px; }

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8, 19, 13, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.22);
}
.header-main { border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.header-main-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 64px; }
.brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--gradient-accent);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 17px;
  box-shadow: 0 4px 12px rgba(0, 179, 104, 0.35);
}
.brand-name { font-size: 22px; font-weight: 900; letter-spacing: .5px; color: #fff; line-height: 1; }
.brand-name span { color: var(--primary-light); }
.header-search { flex: 1; max-width: 400px; display: flex; margin: 0 12px; }
.header-search input {
  flex: 1; min-width: 0; height: 38px;
  border-radius: 19px 0 0 19px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-right: none;
  background: rgba(255, 255, 255, 0.07);
  padding: 0 16px; color: #fff; font-size: 14px; outline: none;
  transition: border-color .2s ease, background .2s ease;
}
.header-search input:focus { border-color: var(--primary); background: rgba(255, 255, 255, 0.12); }
.header-search input::placeholder { color: rgba(255, 255, 255, 0.45); }
.header-search button {
  width: 46px; height: 38px; border-radius: 0 19px 19px 0;
  background: var(--gradient-accent); border: none; color: #fff;
  font-size: 14px; cursor: pointer; transition: filter .2s ease;
}
.header-search button:hover { filter: brightness(1.1); }
.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.btn-login { color: rgba(255, 255, 255, 0.85); font-size: 14px; padding: 6px 4px; }
.btn-login:hover { color: #fff; }
.btn-register {
  background: var(--gradient-accent); color: #fff; font-size: 14px; font-weight: 600;
  padding: 8px 20px; border-radius: 999px;
  box-shadow: 0 4px 14px rgba(0, 179, 104, 0.3);
  transition: transform .2s ease, box-shadow .2s ease;
}
.btn-register:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(0, 179, 104, 0.4); }
.btn-register:active { transform: translateY(0); }
.menu-toggle {
  display: none; background: none; border: 1px solid rgba(255, 255, 255, 0.2);
  width: 38px; height: 38px; border-radius: 10px; color: #fff; font-size: 16px;
  cursor: pointer; align-items: center; justify-content: center;
}
.menu-toggle:focus { outline: 2px solid var(--primary); outline-offset: 2px; }

/* ========== Channel Nav ========== */
.channel-nav { background: rgba(0, 0, 0, 0.18); }
.channel-nav-inner { display: flex; align-items: center; gap: 6px; height: 50px; overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; }
.channel-nav-inner::-webkit-scrollbar { display: none; }
.channel-link {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 18px; border-radius: 999px;
  color: rgba(255, 255, 255, 0.7); font-size: 14px; font-weight: 500;
  white-space: nowrap; transition: background .2s ease, color .2s ease;
}
.channel-link i { font-size: 13px; }
.channel-link:hover { color: #fff; background: rgba(255, 255, 255, 0.1); }
.channel-link.active {
  background: var(--gradient-accent); color: #fff; font-weight: 600;
  box-shadow: 0 4px 14px rgba(0, 179, 104, 0.35);
}
.channel-link:focus-visible { outline: 2px solid var(--primary-light); outline-offset: 2px; }

/* ========== Buttons ========== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: var(--radius-md);
  font-size: 15px; font-weight: 600; line-height: 1; cursor: pointer;
  border: 2px solid transparent; text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:focus-visible { outline: 2px solid var(--primary-light); outline-offset: 3px; }
.btn-primary { background: var(--gradient-accent); color: #fff; box-shadow: 0 6px 20px rgba(0, 179, 104, 0.32); }
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0, 179, 104, 0.4); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(0, 179, 104, 0.3); }
.btn-outline-light { background: transparent; border-color: rgba(255, 255, 255, 0.6); color: #fff; }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-outline-light:active { transform: translateY(0); }
.btn-white { background: #fff; color: var(--accent); box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18); }
.btn-white:hover { background: #fff7f0; color: var(--accent); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22); }
.btn-white:active { transform: translateY(0); }
.btn-outline-white { background: transparent; border-color: rgba(255, 255, 255, 0.65); color: #fff; }
.btn-outline-white:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-outline-white:active { transform: translateY(0); }

/* ========== Category Banner ========== */
.cat-banner {
  position: relative;
  background: var(--gradient-main);
  background-image: linear-gradient(135deg, rgba(8, 19, 13, 0.94) 10%, rgba(13, 59, 36, 0.92) 55%, rgba(0, 117, 74, 0.9) 100%), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 92px 0 84px;
  overflow: hidden;
}
.cat-banner::before {
  content: '';
  position: absolute; top: -80px; right: -60px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(255, 109, 0, 0.22) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}
.cat-banner::after {
  content: '';
  position: absolute; left: 30%; bottom: -120px;
  width: 420px; height: 240px;
  background: radial-gradient(circle, rgba(0, 211, 122, 0.15) 0%, transparent 70%);
  filter: blur(70px);
  pointer-events: none;
}
.cat-banner-inner { position: relative; z-index: 2; max-width: 760px; }
.cat-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff; font-size: 13px; font-weight: 600;
  padding: 7px 16px; border-radius: 999px; margin-bottom: 22px;
  backdrop-filter: blur(6px);
}
.cat-badge i { color: var(--gold); }
.cat-banner h1 {
  margin: 0 0 16px;
  font-size: 48px; font-weight: 900; line-height: 1.15; color: #fff;
  letter-spacing: 1px;
}
.cat-desc {
  margin: 0 0 28px;
  font-size: 17px; line-height: 1.8; color: rgba(255, 255, 255, 0.88);
  max-width: 640px;
}
.cat-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.1); color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.16); font-size: 13px; font-weight: 500;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}
.tag:hover { background: rgba(255, 255, 255, 0.2); color: #fff; border-color: rgba(255, 255, 255, 0.35); }
.tag.active {
  background: var(--gradient-accent); color: #fff; border-color: transparent;
  box-shadow: 0 4px 14px rgba(0, 179, 104, 0.35);
}
.cat-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ========== Section ========== */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-section); }
.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 38px;
}
.section-head.center { flex-direction: column; align-items: center; text-align: center; gap: 8px; }
.section-head h2 {
  margin: 0; font-size: 32px; font-weight: 800; line-height: 1.3; color: var(--text-main);
}
.section-head.center p { margin: 0; color: var(--text-muted); font-size: 15px; }
.section-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--primary); font-size: 14px; font-weight: 600;
  padding: 8px 14px; border-radius: 999px; background: rgba(0, 179, 104, 0.08);
  transition: background .2s ease, transform .2s ease;
}
.section-link:hover { background: rgba(0, 179, 104, 0.15); transform: translateX(2px); color: var(--primary-dark); }

/* ========== Video Cards ========== */
.video-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  margin-bottom: 24px;
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(0, 179, 104, 0.3); }
.video-card-image {
  position: relative; padding-top: 75%; overflow: hidden; background: var(--bg-dark);
}
.video-card-image img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s ease;
}
.video-card:hover .video-card-image img { transform: scale(1.04); }
.video-card-image::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(0, 0, 0, 0.55) 100%);
}
.hot-badge {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  background: linear-gradient(135deg, #FF4D2E 0%, #FF6D00 100%);
  color: #fff; font-size: 12px; font-weight: 700;
  padding: 5px 12px; border-radius: 999px;
  display: inline-flex; align-items: center; gap: 5px;
  box-shadow: 0 4px 14px rgba(255, 77, 46, 0.4);
}
.hot-badge i { font-size: 11px; }
.cat-label {
  position: absolute; top: 14px; right: 14px; z-index: 2;
  background: rgba(8, 19, 13, 0.7); color: #fff; font-size: 12px; font-weight: 500;
  padding: 4px 12px; border-radius: 999px; backdrop-filter: blur(4px);
}
.play-btn-center {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0.8);
  width: 52px; height: 52px; border-radius: 50%;
  background: rgba(255, 109, 0, 0.92); color: #fff; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity .3s ease, transform .3s ease;
  z-index: 2; box-shadow: 0 8px 28px rgba(255, 109, 0, 0.45);
}
.video-card:hover .play-btn-center { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-card-body { padding: 18px 20px 20px; }
.video-card-title {
  margin: 0 0 12px; font-size: 16px; font-weight: 700; line-height: 1.5;
  color: var(--text-main); display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.video-card-meta {
  display: flex; align-items: center; justify-content: space-between;
  color: var(--text-muted); font-size: 13px;
}
.video-card-meta .play-count i { color: var(--primary); margin-right: 4px; }
.video-card-meta .duration { font-family: var(--font-num); background: var(--bg-section); padding: 3px 10px; border-radius: 999px; }

/* ========== Video List ========== */
.video-list { display: flex; flex-direction: column; gap: 0; }
.video-list-item {
  display: flex; align-items: center; gap: 18px;
  padding: 18px 20px; border-radius: var(--radius-md);
  background: #fff; border: 1px solid var(--border);
  transition: box-shadow .2s ease, border-color .2s ease, transform .2s ease;
  margin-bottom: 14px;
}
.video-list-item:hover { box-shadow: var(--shadow-sm); border-color: rgba(0, 179, 104, 0.3); transform: translateX(4px); }
.video-list-index {
  width: 42px; height: 42px; border-radius: 12px; flex-shrink: 0;
  background: var(--bg-section); color: var(--primary);
  font-family: var(--font-num); font-size: 17px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.video-list-item:nth-child(1) .video-list-index { background: var(--gradient-accent); color: #fff; }
.video-list-item:nth-child(2) .video-list-index { background: rgba(0, 179, 104, 0.14); color: var(--primary-dark); }
.video-list-body { flex: 1; min-width: 0; }
.video-list-title {
  margin: 0 0 6px; font-size: 15px; font-weight: 600; color: var(--text-main);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.video-list-item:hover .video-list-title { color: var(--primary); }
.video-list-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.video-list-tags span {
  font-size: 12px; color: var(--text-muted);
  background: var(--bg-section); padding: 2px 10px; border-radius: 999px;
}
.video-list-time { flex-shrink: 0; font-size: 13px; color: var(--text-muted); font-family: var(--font-num); }

/* ========== Popular Box ========== */
.popular-box {
  background: #fff; border-radius: var(--radius-lg);
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  padding: 26px 24px;
}
.popular-box h3 {
  margin: 0 0 22px; font-size: 20px; font-weight: 800;
  display: flex; align-items: center; gap: 8px;
}
.popular-box h3 i { color: var(--accent); }
.popular-item {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 16px 0; border-bottom: 1px dashed var(--border);
}
.popular-item:last-child { border-bottom: none; padding-bottom: 0; }
.popular-rank {
  width: 30px; height: 30px; border-radius: 9px; flex-shrink: 0;
  background: var(--bg-section); color: var(--text-muted);
  font-family: var(--font-num); font-size: 14px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.popular-item:nth-child(1) .popular-rank { background: linear-gradient(135deg, #FFC845, #FF8A00); color: #fff; }
.popular-item:nth-child(2) .popular-rank { background: linear-gradient(135deg, #C0C6CC, #8E959B); color: #fff; }
.popular-item:nth-child(3) .popular-rank { background: linear-gradient(135deg, #CD7F32, #B87333); color: #fff; }
.popular-item-body { flex: 1; min-width: 0; }
.popular-item-title {
  margin: 0 0 5px; font-size: 14px; font-weight: 600; line-height: 1.5;
  color: var(--text-main); display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
  transition: color .2s ease;
}
.popular-item:hover .popular-item-title { color: var(--primary); }
.popular-item-meta { font-size: 12px; color: var(--text-muted); font-family: var(--font-num); }

/* ========== Features ========== */
.feature-card {
  background: #fff; border-radius: var(--radius-lg);
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  padding: 30px 26px; margin-bottom: 24px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: rgba(255, 109, 0, 0.25); }
.feature-icon {
  width: 58px; height: 58px; border-radius: 16px;
  background: rgba(0, 179, 104, 0.1); color: var(--primary);
  font-size: 22px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.feature-card:nth-child(2) .feature-icon { background: rgba(255, 109, 0, 0.1); color: var(--accent); }
.feature-card:nth-child(3) .feature-icon { background: rgba(255, 200, 69, 0.14); color: #D98E00; }
.feature-card:nth-child(4) .feature-icon { background: rgba(0, 117, 74, 0.1); color: var(--primary-dark); }
.feature-title { margin: 0 0 10px; font-size: 17px; font-weight: 700; }
.feature-text { margin: 0; font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ========== Process ========== */
.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; margin-top: 10px;
}
.process-step {
  text-align: center; padding: 34px 22px;
  background: #fff; border-radius: var(--radius-lg);
  border: 1px solid var(--border); position: relative;
  transition: transform .3s ease, box-shadow .3s ease;
}
.process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.step-num {
  position: absolute; top: -16px; left: 50%; transform: translateX(-50%);
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--gradient-accent); color: #fff;
  font-family: var(--font-num); font-size: 15px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 179, 104, 0.35);
}
.step-icon {
  font-size: 34px; color: var(--primary); margin: 12px 0 16px;
  display: block;
}
.step-title { font-size: 16px; font-weight: 700; margin: 0 0 8px; }
.step-text { font-size: 13px; color: var(--text-muted); margin: 0; line-height: 1.6; }

/* ========== SEO Desc ========== */
.seo-box {
  background: linear-gradient(135deg, rgba(242, 247, 244, 0.9), rgba(255, 255, 255, 0.95));
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 44px 46px;
}
.seo-box h3 {
  margin: 0 0 18px; font-size: 22px; font-weight: 800;
  display: flex; align-items: center; gap: 10px;
}
.seo-box h3::before {
  content: ''; width: 5px; height: 24px; border-radius: 4px;
  background: var(--gradient-accent);
}
.seo-box p { margin: 0 0 14px; font-size: 15px; line-height: 1.85; color: #2A3B31; }
.seo-box p:last-child { margin-bottom: 0; }

/* ========== FAQ ========== */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--border);
  border-radius: 16px; margin-bottom: 14px; overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item.active { border-color: rgba(0, 179, 104, 0.4); box-shadow: 0 4px 20px rgba(0, 90, 50, 0.08); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px; cursor: pointer; user-select: none;
  font-size: 16px; font-weight: 600; color: var(--text-main);
}
.faq-question:focus-visible { outline: 2px solid var(--primary-light); outline-offset: -2px; border-radius: 16px; }
.faq-icon {
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0;
  background: var(--bg-section); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 600;
  transition: transform .3s ease, background .3s ease, color .3s ease;
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--gradient-accent); color: #fff; }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height .35s ease;
}
.faq-answer-inner {
  padding: 0 24px 22px; font-size: 14px; line-height: 1.75;
  color: var(--text-muted); border-top: 1px dashed var(--border);
  padding-top: 14px;
}

/* ========== CTA ========== */
.cta-section {
  background: var(--gradient-main);
  background-image: linear-gradient(135deg, #08130D 0%, #0D3B24 55%, #00754A 100%);
  padding: 80px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(circle, rgba(255, 109, 0, 0.18) 0%, transparent 70%);
  filter: blur(70px);
}
.cta-section h2 {
  margin: 0 0 14px; font-size: 36px; font-weight: 900; color: #fff;
  position: relative; z-index: 2;
}
.cta-section > .grid-container > p {
  margin: 0 auto 34px; color: rgba(255, 255, 255, 0.82);
  font-size: 16px; max-width: 480px; position: relative; z-index: 2;
}
.cta-buttons {
  display: flex; justify-content: center; gap: 14px; flex-wrap: wrap;
  position: relative; z-index: 2; margin-bottom: 42px;
}
.cta-trust {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 24px;
  position: relative; z-index: 2;
}
.cta-trust span {
  display: inline-flex; align-items: center; gap: 7px;
  color: rgba(255, 255, 255, 0.9); font-size: 14px;
}
.cta-trust span i { color: var(--gold); font-size: 15px; }

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-dark); color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 44px; padding-bottom: 48px;
}
.footer-brand .brand-name { font-size: 20px; }
.footer-brand p { font-size: 14px; line-height: 1.8; margin: 18px 0 20px; color: rgba(255, 255, 255, 0.55); }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255, 255, 255, 0.7); font-size: 15px;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.footer-social a:hover { background: var(--gradient-accent); color: #fff; border-color: transparent; }
.footer-col h4 {
  margin: 0 0 18px; font-size: 15px; font-weight: 700; color: #fff;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { color: rgba(255, 255, 255, 0.55); font-size: 14px; transition: color .2s ease, padding-left .2s ease; }
.footer-col ul a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-contact p { margin: 0 0 12px; font-size: 14px; color: rgba(255, 255, 255, 0.55); display: flex; align-items: center; gap: 10px; }
.footer-contact p i { color: var(--primary-light); width: 16px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0; text-align: center;
  font-size: 12px; color: rgba(255, 255, 255, 0.4);
}
.footer-bottom p { margin: 0; }

/* ========== Responsive ========== */
@media (max-width: 1023px) {
  .section { padding: 72px 0; }
  .cat-banner { padding: 76px 0 70px; }
  .cat-banner h1 { font-size: 38px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .header-search { max-width: 280px; }
}
@media (max-width: 767px) {
  .header-main-inner { height: 58px; gap: 10px; }
  .header-search { display: none; }
  .header-actions .btn-login { display: none; }
  .menu-toggle { display: flex; }
  .channel-nav { display: none; }
  .channel-nav.open { display: block; }
  .channel-nav-inner {
    height: auto; flex-wrap: wrap; padding: 12px 16px; gap: 8px;
    overflow-x: visible;
  }
  .channel-link { padding: 8px 16px; }
  .section { padding: 56px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 10px; margin-bottom: 30px; }
  .section-head.center { align-items: center; text-align: center; }
  .section-head h2 { font-size: 24px; }
  .cat-banner { padding: 60px 0 56px; }
  .cat-banner h1 { font-size: 32px; }
  .cat-desc { font-size: 15px; }
  .cat-actions .btn { width: 100%; }
  .video-card { margin-bottom: 18px; }
  .video-card-image { padding-top: 68%; }
  .video-list-item { padding: 14px 16px; gap: 12px; }
  .video-list-index { width: 36px; height: 36px; font-size: 14px; border-radius: 10px; }
  .video-list-time { display: none; }
  .popular-box { margin-top: 8px; }
  .process-steps { grid-template-columns: 1fr; gap: 18px; }
  .process-step { padding: 28px 20px; }
  .seo-box { padding: 30px 24px; }
  .faq-question { font-size: 15px; padding: 17px 18px; }
  .faq-answer-inner { padding: 12px 18px 18px; }
  .cta-section { padding: 60px 0; }
  .cta-section h2 { font-size: 28px; }
  .cta-buttons .btn { width: 100%; max-width: 340px; }
  .cta-trust { flex-direction: column; gap: 10px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 36px; }
  .footer-brand { text-align: center; }
  .footer-social { justify-content: center; }
  .grid-container { padding-left: 18px; padding-right: 18px; }
}
@media (max-width: 520px) {
  .brand-name { font-size: 19px; }
  .brand-icon { width: 34px; height: 34px; font-size: 15px; }
  .btn-register { padding: 7px 16px; font-size: 13px; }
  .cat-banner { padding: 52px 0 48px; background-size: cover; background-position: 30% 20%; }
  .cat-tags { gap: 8px; }
  .tag { padding: 6px 14px; font-size: 12px; }
  .cat-desc { font-size: 14px; }
}