/* roulang page: index */
:root {
  --bg-body: #050b16;
  --bg-section: #081120;
  --bg-card: rgba(255, 255, 255, 0.045);
  --bg-glass: rgba(255, 255, 255, 0.07);
  --bg-hover: rgba(255, 255, 255, 0.12);
  --accent: #00d4ff;
  --accent-2: #7c5cff;
  --accent-glow: rgba(0, 212, 255, 0.35);
  --accent-gradient: linear-gradient(135deg, #00d4ff, #7c5cff);
  --text-main: #e6effa;
  --text-sub: #93a5c4;
  --text-faint: #6b7f9d;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.18);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.25);
}

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

html { scroll-behavior: smooth; }

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

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

a { text-decoration: none; color: inherit; transition: color 0.3s ease; }

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

.container-lg { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.container-md { max-width: 1080px; margin: 0 auto; padding: 0 32px; }

/* ===== 头部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  background: rgba(5, 11, 22, 0.78);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}
.logo-sub { font-size: 11px; color: var(--text-faint); letter-spacing: 2px; margin-top: 2px; }
.main-nav { display: flex; align-items: center; gap: 4px; flex-wrap: nowrap; }
.nav-link {
  position: relative;
  display: inline-block;
  color: var(--text-sub);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 14px;
  border-radius: 8px;
  transition: color 0.3s ease, background 0.3s ease;
}
.nav-link:hover { color: var(--text-main); background: var(--bg-card); }
.nav-link.active { color: var(--accent); }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-gradient);
}
.header-actions { display: flex; align-items: center; gap: 14px; }
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  min-width: 220px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15); }
.search-box svg { width: 16px; height: 16px; color: var(--text-faint); flex-shrink: 0; }
.search-box input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 14px;
  width: 100%;
}
.search-box input::placeholder { color: var(--text-faint); }
.search-kbd {
  font-size: 11px;
  color: var(--text-faint);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  white-space: nowrap;
}
.btn-header {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 22px;
  border-radius: 999px;
  box-shadow: var(--shadow-glow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  white-space: nowrap;
}
.btn-header:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(0, 212, 255, 0.45); }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.mobile-toggle span { width: 22px; height: 2px; background: var(--text-main); border-radius: 2px; transition: 0.3s; }
.mobile-menu {
  display: none;
  border-top: 1px solid var(--border);
  background: rgba(5, 11, 22, 0.95);
  padding: 16px 24px 24px;
  backdrop-filter: blur(24px);
}
.mobile-menu .nav-link { display: block; padding: 12px 8px; border-bottom: 1px solid var(--border); border-radius: 0; }
.mobile-menu .nav-link:last-child { border-bottom: none; }
.mobile-menu .nav-link.active::after { display: none; }
.mobile-menu .nav-link.active { color: var(--accent); background: rgba(0, 212, 255, 0.08); border-radius: 8px; }

/* ===== 按钮 / 徽章 / 标签 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 32px;
  border-radius: 999px;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  box-shadow: var(--shadow-glow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  white-space: nowrap;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 0 44px rgba(0, 212, 255, 0.5); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 32px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  font-size: 16px;
  font-weight: 500;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: rgba(0, 212, 255, 0.08); transform: translateY(-2px); }
.btn-lg { padding: 18px 40px; font-size: 17px; }
.badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.12);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--accent);
  letter-spacing: 0.3px;
}
.badge-hot { background: rgba(255, 92, 92, 0.14); border-color: rgba(255, 92, 92, 0.3); color: #ff6b6b; }
.badge-new { background: rgba(124, 92, 255, 0.14); border-color: rgba(124, 92, 255, 0.3); color: #a78bfa; }
.badge-gold { background: rgba(245, 166, 35, 0.12); border-color: rgba(245, 166, 35, 0.3); color: #f5a623; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 760px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
  isolation: isolate;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 11, 22, 0.88), rgba(5, 11, 22, 0.68) 45%, rgba(5, 11, 22, 0.96));
  z-index: -1;
}
.hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.4), transparent);
}
.hero-countdown-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 10px 24px;
  border-radius: 999px;
  background: var(--bg-glass);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(16px);
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 32px;
}
.hero-countdown-bar strong { color: var(--accent); font-weight: 600; }
.countdown-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: 'SF Mono', 'Cascadia Code', Consolas, monospace;
  font-size: 15px;
  color: var(--accent);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 6px;
  padding: 2px 10px;
}
.hero h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 1px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #ffffff 30%, #a5dcff 70%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p.hero-desc {
  font-size: 18px;
  color: var(--text-sub);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 36px;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 44px; }
.hero-data {
  display: flex;
  align-items: center;
  gap: 36px;
  flex-wrap: wrap;
}
.hero-data-item { display: flex; flex-direction: column; gap: 2px; }
.hero-data-item .num { font-size: 24px; font-weight: 700; color: var(--text-main); font-family: 'SF Mono', Consolas, monospace; }
.hero-data-item .label { font-size: 13px; color: var(--text-faint); }
.hero-progress-wrap {
  max-width: 540px;
  margin-top: 32px;
  padding: 20px 24px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
}
.progress-top { display: flex; justify-content: space-between; align-items: center; font-size: 14px; color: var(--text-sub); margin-bottom: 10px; }
.progress-top span:last-child { color: var(--accent); font-weight: 600; }
.progress-bar { height: 8px; border-radius: 99px; background: rgba(255, 255, 255, 0.08); overflow: hidden; }
.progress-bar-inner {
  height: 100%;
  border-radius: 99px;
  background: var(--accent-gradient);
  width: 68%;
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.4);
  transition: width 1.2s ease;
}

/* ===== 通用 Section ===== */
.section { padding: 100px 0; position: relative; }
.section-subtle { background: var(--bg-section); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-title { font-size: 34px; font-weight: 700; line-height: 1.35; margin-bottom: 16px; letter-spacing: 0.5px; }
.section-desc { font-size: 16px; color: var(--text-sub); line-height: 1.8; }

/* ===== 亮点墙 ===== */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all 0.4s ease;
}
.glass-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
  background: var(--bg-glass);
}
.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  font-size: 24px;
  margin-bottom: 20px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
}
.feature-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.feature-card p { font-size: 14px; color: var(--text-sub); line-height: 1.75; }

/* ===== 菜单轨道 ===== */
.rail-wrap { position: relative; }
.menu-rail {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 8px 4px 28px;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}
.menu-rail::-webkit-scrollbar { display: none; }
.menu-rail-card {
  min-width: 300px;
  max-width: 300px;
  scroll-snap-align: start;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all 0.4s ease;
}
.menu-rail-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card); border-color: var(--border-strong); }
.menu-rail-card .cover { height: 180px; overflow: hidden; position: relative; }
.menu-rail-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.menu-rail-card:hover .cover img { transform: scale(1.06); }
.menu-rail-card .body { padding: 20px 22px 24px; }
.menu-rail-card .price { font-size: 20px; font-weight: 700; color: var(--accent); font-family: 'SF Mono', Consolas, monospace; }
.menu-rail-card .price small { font-size: 13px; color: var(--text-faint); font-weight: 400; }
.menu-rail-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.menu-rail-card p { font-size: 13px; color: var(--text-sub); line-height: 1.6; margin-bottom: 14px; }
.menu-rail-link { font-size: 14px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 4px; }

/* ===== 人气推荐 ===== */
.recommend-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.rec-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all 0.4s ease;
  position: relative;
}
.rec-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card); border-color: var(--border-strong); }
.rec-card .cover { height: 220px; overflow: hidden; position: relative; }
.rec-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.rec-card:hover .cover img { transform: scale(1.05); }
.rec-card .cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(5, 11, 22, 0.55));
}
.rec-card .badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  backdrop-filter: blur(8px);
}
.rec-card .body { padding: 20px 22px 24px; }
.rec-card .body h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.rec-card .body p { font-size: 13px; color: var(--text-sub); line-height: 1.6; margin-bottom: 12px; }
.rec-meta { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--text-faint); }
.rec-meta .price { color: var(--accent); font-weight: 700; font-size: 17px; font-family: 'SF Mono', Consolas, monospace; }

/* ===== 场景分区 ===== */
.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.scene-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all 0.4s ease;
  display: flex;
  flex-direction: column;
}
.scene-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); border-color: rgba(0, 212, 255, 0.3); }
.scene-card .cover { height: 220px; overflow: hidden; }
.scene-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.scene-card:hover .cover img { transform: scale(1.05); }
.scene-card .body { padding: 24px 28px 28px; flex: 1; display: flex; flex-direction: column; }
.scene-card h3 { font-size: 20px; font-weight: 600; margin-bottom: 10px; }
.scene-card p { font-size: 14px; color: var(--text-sub); line-height: 1.75; flex: 1; }
.scene-card .scene-link { margin-top: 18px; font-size: 14px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 4px; }
.scene-card .scene-link:hover { gap: 8px; }
.scene-banner {
  margin-top: 24px;
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, rgba(0, 212, 255, 0.12), rgba(124, 92, 255, 0.12));
  border: 1px solid rgba(0, 212, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  backdrop-filter: blur(12px);
}
.scene-banner h3 { font-size: 18px; font-weight: 600; }
.scene-banner p { font-size: 14px; color: var(--text-sub); margin-top: 4px; }

/* ===== 数据 / 品牌故事 ===== */
.stats-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-bottom: 72px; }
.stat-item { text-align: center; padding: 28px 16px; border-radius: var(--radius-lg); background: var(--bg-card); border: 1px solid var(--border); transition: all 0.4s ease; }
.stat-item:hover { border-color: var(--accent); box-shadow: 0 0 24px rgba(0, 212, 255, 0.15); }
.stat-item .stat-num { font-size: 38px; font-weight: 800; font-family: 'SF Mono', Consolas, monospace; background: var(--accent-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat-item .stat-label { font-size: 14px; color: var(--text-sub); margin-top: 8px; }
.story-band {
  margin-top: 72px;
  border-radius: var(--radius-xl);
  padding: 56px 60px;
  background: linear-gradient(120deg, rgba(5, 11, 22, 0.85), rgba(8, 17, 32, 0.88)), url('/assets/images/backpic/back-2.jpg') center / cover no-repeat;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.story-band::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.2), transparent 70%);
  border-radius: 50%;
}
.story-band h3 { font-size: 26px; font-weight: 700; margin-bottom: 16px; }
.story-band p { font-size: 15px; color: var(--text-sub); line-height: 1.9; max-width: 680px; }
.story-tag { display: inline-flex; align-items: center; gap: 8px; background: var(--bg-glass); border: 1px solid var(--border); border-radius: 999px; padding: 8px 18px; font-size: 13px; color: var(--text-main); margin-top: 20px; }

/* ===== 资讯区 ===== */
.news-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; }
.news-list { display: flex; flex-direction: column; }
.news-list-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease, padding-left 0.3s ease;
}
.news-list-item:hover { background: var(--bg-card); padding-left: 12px; border-radius: 12px; }
.news-date { font-size: 13px; color: var(--text-faint); white-space: nowrap; font-family: 'SF Mono', Consolas, monospace; }
.news-title { font-size: 15px; font-weight: 500; color: var(--text-main); line-height: 1.5; }
.news-title:hover { color: var(--accent); }
.news-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(12px);
}
.news-sidebar h3 { font-size: 16px; font-weight: 600; margin-bottom: 20px; }
.side-tag-list { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.side-tag-list li a {
  display: inline-block;
  font-size: 13px;
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 14px;
  transition: all 0.3s ease;
}
.side-tag-list li a:hover { border-color: var(--accent); color: var(--accent); background: rgba(0, 212, 255, 0.06); }
.side-guide { border-top: 1px solid var(--border); padding-top: 20px; }
.side-guide p { font-size: 14px; color: var(--text-sub); line-height: 1.8; margin-bottom: 12px; }
.side-guide strong { color: var(--text-main); }

/* ===== 会员 / 追剧入口 ===== */
.member-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; align-items: start; }
.tier-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tier-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: all 0.4s ease;
  position: relative;
}
.tier-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); border-color: rgba(0, 212, 255, 0.3); }
.tier-card.featured { border-color: rgba(0, 212, 255, 0.4); background: linear-gradient(180deg, rgba(0, 212, 255, 0.08), var(--bg-card)); }
.tier-card .tier-name { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.tier-card .tier-price { font-size: 30px; font-weight: 800; color: var(--accent); font-family: 'SF Mono', Consolas, monospace; margin-bottom: 4px; }
.tier-card .tier-price small { font-size: 13px; color: var(--text-faint); font-weight: 400; }
.tier-card .tier-desc { font-size: 13px; color: var(--text-sub); margin-bottom: 16px; }
.tier-card ul { list-style: none; text-align: left; margin-bottom: 20px; }
.tier-card ul li { font-size: 13px; color: var(--text-sub); padding: 5px 0; padding-left: 20px; position: relative; }
.tier-card ul li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.btn-tier {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 28px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  transition: all 0.3s ease;
}
.btn-tier:hover { border-color: var(--accent); color: var(--accent); background: rgba(0, 212, 255, 0.06); }
.btn-tier.primary { background: var(--accent-gradient); border: none; color: #fff; box-shadow: var(--shadow-glow); }
.btn-tier.primary:hover { transform: translateY(-2px); box-shadow: 0 0 30px rgba(0, 212, 255, 0.4); }
.supporter-panel { background: var(--bg-glass); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; backdrop-filter: blur(16px); }
.supporter-panel h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.supporter-panel > p { font-size: 14px; color: var(--text-sub); margin-bottom: 24px; }
.supporter-wall { display: grid; gap: 16px; margin-bottom: 28px; }
.supporter-item { display: flex; align-items: center; gap: 12px; }
.supporter-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  background: var(--accent-gradient);
  flex-shrink: 0;
}
.supporter-info { font-size: 13px; color: var(--text-sub); line-height: 1.4; }
.supporter-info strong { color: var(--text-main); display: block; }
.supporter-total { font-size: 13px; color: var(--text-faint); padding-top: 18px; border-top: 1px solid var(--border); }

/* ===== FAQ ===== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.faq-item.open { border-color: rgba(0, 212, 255, 0.35); background: var(--bg-glass); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
}
.faq-icon { width: 20px; height: 20px; flex-shrink: 0; position: relative; }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; background: var(--accent); border-radius: 2px; transition: transform 0.3s ease; }
.faq-icon::before { width: 14px; height: 2px; top: 9px; left: 3px; }
.faq-icon::after { width: 2px; height: 14px; top: 3px; left: 9px; }
.faq-item.open .faq-icon::after { transform: scaleY(0); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.9;
  padding: 0 24px;
}
.faq-item.open .faq-answer { max-height: 320px; padding: 0 24px 22px; }

/* ===== CTA ===== */
.cta-band {
  position: relative;
  border-radius: var(--radius-xl);
  padding: 72px 64px;
  text-align: center;
  background: linear-gradient(120deg, rgba(0, 212, 255, 0.12), rgba(124, 92, 255, 0.1)), url('/assets/images/backpic/back-3.jpg') center / cover no-repeat;
  border: 1px solid rgba(0, 212, 255, 0.2);
  overflow: hidden;
}
.cta-band::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 200px;
  background: radial-gradient(ellipse, rgba(0, 212, 255, 0.25), transparent 65%);
  border-radius: 50%;
}
.cta-band h2 { font-size: 32px; font-weight: 700; margin-bottom: 16px; }
.cta-band p { font-size: 16px; color: var(--text-sub); max-width: 560px; margin: 0 auto 36px; line-height: 1.8; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; z-index: 1; }

/* ===== 页脚 ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
  background: rgba(5, 11, 22, 0.6);
  margin-top: 100px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.footer-about p { font-size: 14px; color: var(--text-sub); line-height: 1.8; margin-top: 16px; max-width: 320px; }
.footer-col h4 { font-size: 15px; font-weight: 600; margin-bottom: 18px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; color: var(--text-sub); transition: color 0.3s ease; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-contact p { font-size: 14px; color: var(--text-sub); margin-bottom: 10px; line-height: 1.7; }
.footer-bottom {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-faint);
}
.footer-bottom a { color: var(--text-faint); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 浮动按钮 ===== */
.float-contact {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 90;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 24px rgba(0, 212, 255, 0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.float-contact:hover { transform: scale(1.1); box-shadow: 0 0 36px rgba(0, 212, 255, 0.55); }
.float-contact svg { width: 22px; height: 22px; fill: #fff; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .recommend-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .tier-grid { grid-template-columns: 1fr; }
  .member-layout { grid-template-columns: 1fr; }
  .news-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav { display: none; }
  .search-box { display: none; }
  .mobile-toggle { display: flex; }
  .mobile-menu.open { display: block; }
}

@media (max-width: 768px) {
  .container-lg, .container-md { padding: 0 20px; }
  .section { padding: 72px 0; }
  .hero { min-height: 640px; }
  .hero h1 { font-size: 30px; }
  .hero p.hero-desc { font-size: 16px; }
  .hero-ctas .btn-primary, .hero-ctas .btn-ghost { padding: 13px 24px; font-size: 15px; }
  .hero-countdown-bar { font-size: 13px; padding: 8px 16px; border-radius: 24px; }
  .section-title { font-size: 26px; }
  .scene-grid { grid-template-columns: 1fr; }
  .stats-band { gap: 16px; }
  .stat-item .stat-num { font-size: 30px; }
  .story-band { padding: 36px 28px; }
  .story-band h3 { font-size: 21px; }
  .cta-band { padding: 48px 28px; }
  .cta-band h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .menu-rail-card { min-width: 260px; max-width: 260px; }
}

@media (max-width: 520px) {
  .container-lg, .container-md { padding: 0 16px; }
  .header-inner { height: 62px; }
  .logo-text { font-size: 16px; }
  .btn-header { padding: 8px 16px; font-size: 13px; }
  .hero h1 { font-size: 25px; }
  .hero-data { gap: 20px; }
  .feature-grid { grid-template-columns: 1fr; }
  .recommend-grid { grid-template-columns: 1fr; }
  .stats-band { grid-template-columns: 1fr 1fr; }
  .hero-countdown-bar strong { display: block; }
  .cta-actions .btn-primary, .cta-actions .btn-ghost { width: 100%; }
  .scene-banner { padding: 24px; }
  .story-band p { font-size: 14px; }
}

/* 滚动入场动画 */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* roulang page: category1 */
:root {
            --primary: #2563eb;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --accent: #06b6d4;
            --accent-light: #22d3ee;
            --bg-dark: #060e1e;
            --bg-card: rgba(15, 30, 56, 0.72);
            --bg-card-hover: rgba(20, 40, 70, 0.85);
            --border-glow: rgba(59, 130, 246, 0.35);
            --text-light: #f1f5f9;
            --text-mid: #94a3b8;
            --text-dim: #64748b;
            --glow-blue: rgba(59, 130, 246, 0.55);
            --glow-cyan: rgba(6, 182, 212, 0.4);
            --radius-lg: 16px;
            --radius-md: 12px;
            --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.25);
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-main);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            overflow-x: hidden;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
        }

        input {
            font-family: inherit;
        }

        .container-lg {
            width: min(1240px, 92%);
            margin-inline: auto;
        }

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

        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            color: var(--text-mid);
            font-size: 1.05rem;
            max-width: 640px;
            margin-top: 12px;
            line-height: 1.7;
        }

        .text-gradient {
            background: linear-gradient(135deg, #60a5fa 0%, #22d3ee 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        /* ===== NAV ===== */
        .main-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 14, 30, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(148, 163, 184, 0.12);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 0 clamp(16px, 4vw, 48px);
            height: 72px;
            max-width: 1440px;
            margin-inline: auto;
        }

        .logo-text {
            font-size: 1.05rem;
            font-weight: 800;
            white-space: nowrap;
            color: #fff;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #60a5fa, #22d3ee);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: 20px;
        }

        .nav-link {
            padding: 8px 15px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mid);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(59, 130, 246, 0.15);
        }

        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.25), rgba(6, 182, 212, 0.2));
            box-shadow: 0 0 16px rgba(59, 130, 246, 0.25);
            border: 1px solid rgba(59, 130, 246, 0.3);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(15, 30, 56, 0.7);
            border: 1px solid rgba(148, 163, 184, 0.2);
            border-radius: 999px;
            padding: 7px 16px;
            min-width: 180px;
            transition: all 0.25s ease;
        }

        .search-box:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
            background: rgba(20, 40, 70, 0.85);
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            font-size: 0.85rem;
            width: 100%;
        }

        .search-box input::placeholder {
            color: var(--text-dim);
        }

        .search-box i {
            color: var(--text-mid);
            font-size: 0.85rem;
        }

        .btn-nav {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            padding: 9px 22px;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 600;
            border: none;
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.35);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn-nav:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 32px rgba(59, 130, 246, 0.5);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(148, 163, 184, 0.25);
            color: #fff;
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 1rem;
            transition: background 0.2s;
        }

        .nav-toggle:hover {
            background: rgba(59, 130, 246, 0.15);
        }

        @media (max-width: 1024px) {
            .nav-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 16px;
                gap: 10px;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 6px;
                padding: 10px 0;
                border-top: 1px solid rgba(148, 163, 184, 0.1);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                width: 100%;
                text-align: center;
                padding: 12px;
            }
            .nav-actions {
                margin-left: auto;
            }
            .search-box {
                min-width: 130px;
            }
            .nav-toggle {
                display: block;
            }
        }

        @media (max-width: 640px) {
            .search-box {
                display: none;
            }
            .btn-nav {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .logo-text {
                font-size: 0.92rem;
            }
        }

        /* ===== HERO ===== */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            background: linear-gradient(135deg, rgba(6, 14, 30, 0.96), rgba(10, 25, 50, 0.88)), url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            overflow: hidden;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.25), transparent 65%);
            top: -150px;
            right: -100px;
            z-index: 0;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(59, 130, 246, 0.15);
            border: 1px solid rgba(59, 130, 246, 0.3);
            color: #93c5fd;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(10px);
        }

        .hero-title {
            font-size: clamp(2.3rem, 4.5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
        }

        .hero-subtitle {
            color: var(--text-mid);
            font-size: 1.12rem;
            margin-top: 20px;
            max-width: 520px;
            line-height: 1.8;
        }

        .hero-progress {
            margin-top: 32px;
            background: rgba(15, 30, 56, 0.7);
            border: 1px solid rgba(148, 163, 184, 0.15);
            border-radius: 16px;
            padding: 20px 24px;
            backdrop-filter: blur(10px);
            max-width: 480px;
        }

        .hero-progress-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }

        .hero-progress-top .label {
            color: #e2e8f0;
            font-size: 0.88rem;
            font-weight: 500;
        }

        .hero-progress-top .value {
            color: var(--accent-light);
            font-weight: 700;
            font-size: 0.95rem;
        }

        .progress-bar {
            height: 8px;
            background: rgba(148, 163, 184, 0.15);
            border-radius: 999px;
            overflow: hidden;
        }

        .progress-fill {
            width: 82%;
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 999px;
            box-shadow: 0 0 12px var(--glow-blue);
        }

        .progress-desc {
            margin-top: 10px;
            font-size: 0.8rem;
            color: var(--text-dim);
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 28px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            padding: 13px 28px;
            border-radius: 999px;
            font-weight: 600;
            border: none;
            box-shadow: 0 0 28px var(--glow-blue);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            font-size: 0.95rem;
        }

        .btn-primary:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 0 42px var(--glow-blue);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(15, 30, 56, 0.55);
            border: 1px solid rgba(148, 163, 184, 0.3);
            color: #e2e8f0;
            padding: 13px 28px;
            border-radius: 999px;
            font-weight: 500;
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
            font-size: 0.95rem;
        }

        .btn-secondary:hover {
            border-color: var(--primary-light);
            background: rgba(59, 130, 246, 0.1);
            color: #fff;
        }

        .hero-visual {
            position: relative;
        }

        .hero-card {
            background: var(--bg-card);
            border: 1px solid rgba(148, 163, 184, 0.2);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }

        .hero-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.12);
        }

        .hero-card-header h3 {
            font-size: 1rem;
            font-weight: 600;
        }

        .hero-card-header .badge-live {
            background: rgba(6, 182, 212, 0.2);
            border: 1px solid rgba(6, 182, 212, 0.4);
            color: var(--accent-light);
            font-size: 0.75rem;
            padding: 3px 12px;
            border-radius: 999px;
        }

        .hero-msg-item {
            display: flex;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
        }

        .hero-msg-item:last-child {
            border-bottom: none;
        }

        .hero-msg-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            background: rgba(59, 130, 246, 0.15);
            border: 1px solid rgba(59, 130, 246, 0.25);
        }

        .hero-msg-content {
            flex: 1;
        }

        .hero-msg-content .time {
            font-size: 0.75rem;
            color: var(--text-dim);
        }

        .hero-msg-content .text {
            font-size: 0.9rem;
            color: #e2e8f0;
            margin-top: 2px;
            line-height: 1.5;
        }

        .hero-msg-content .amount {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-light);
            margin-top: 4px;
        }

        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-visual {
                max-width: 520px;
            }
        }

        @media (max-width: 640px) {
            .hero-section {
                padding: 120px 0 60px;
            }
            .hero-btns {
                flex-direction: column;
            }
            .hero-btns .btn-primary,
            .hero-btns .btn-secondary {
                justify-content: center;
                width: 100%;
            }
            .hero-progress {
                padding: 16px;
            }
        }

        /* ===== stats ===== */
        .stats-section {
            background: linear-gradient(180deg, var(--bg-dark), #081426);
            padding: 60px 0;
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid rgba(148, 163, 184, 0.12);
            border-radius: 14px;
            padding: 24px 20px;
            text-align: center;
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            border-color: rgba(59, 130, 246, 0.35);
            transform: translateY(-3px);
        }

        .stat-num {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #60a5fa, #22d3ee);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            color: var(--text-mid);
            font-size: 0.85rem;
            margin-top: 6px;
        }

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

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-num {
                font-size: 1.4rem;
            }
        }

        /* ===== services ===== */
        .services-section {
            padding: 100px 0;
            background: #081426;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid rgba(148, 163, 184, 0.12);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            backdrop-filter: blur(12px);
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity 0.3s;
        }

        .service-card:hover {
            border-color: rgba(59, 130, 246, 0.35);
            transform: translateY(-6px);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-card);
        }

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

        .service-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(6, 182, 212, 0.1));
            border: 1px solid rgba(59, 130, 246, 0.25);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .service-card p {
            color: var(--text-mid);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 18px;
        }

        .service-tags span {
            background: rgba(59, 130, 246, 0.1);
            border: 1px solid rgba(59, 130, 246, 0.2);
            color: #93c5fd;
            font-size: 0.75rem;
            padding: 4px 12px;
            border-radius: 999px;
        }

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

        @media (max-width: 640px) {
            .services-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== scenes ===== */
        .scenes-section {
            padding: 100px 0;
            background: var(--bg-dark);
        }

        .scene-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            margin-bottom: 80px;
        }

        .scene-block:last-child {
            margin-bottom: 0;
        }

        .scene-block.reverse .scene-img {
            order: 2;
        }

        .scene-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .scene-img img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .scene-img:hover img {
            transform: scale(1.03);
        }

        .scene-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(6, 14, 30, 0.5), transparent 60%);
        }

        .scene-tag {
            display: inline-block;
            background: rgba(59, 130, 246, 0.2);
            border: 1px solid rgba(59, 130, 246, 0.3);
            color: #93c5fd;
            font-size: 0.78rem;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
            font-weight: 500;
        }

        .scene-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .scene-content p {
            color: var(--text-mid);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        .scene-list {
            margin-top: 18px;
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .scene-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: #cbd5e1;
        }

        .scene-list li i {
            color: var(--accent-light);
            font-size: 0.8rem;
        }

        @media (max-width: 1024px) {
            .scene-block,
            .scene-block.reverse {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .scene-block.reverse .scene-img {
                order: 0;
            }
        }

        /* ===== cases ===== */
        .cases-section {
            padding: 100px 0;
            background: #081426;
        }

        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .case-card {
            background: var(--bg-card);
            border: 1px solid rgba(148, 163, 184, 0.12);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.35s ease;
            backdrop-filter: blur(10px);
        }

        .case-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
            border-color: rgba(59, 130, 246, 0.3);
        }

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

        .case-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .case-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(6, 14, 30, 0.6), transparent 50%);
        }

        .case-badge {
            position: absolute;
            bottom: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(6, 14, 30, 0.75);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #e2e8f0;
            font-size: 0.72rem;
            padding: 4px 12px;
            border-radius: 999px;
        }

        .case-body {
            padding: 22px;
        }

        .case-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .case-body p {
            color: var(--text-mid);
            font-size: 0.85rem;
            line-height: 1.7;
        }

        .case-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            font-size: 0.78rem;
            color: var(--text-dim);
        }

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

        @media (max-width: 640px) {
            .case-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== pricing ===== */
        .pricing-section {
            padding: 100px 0;
            background: var(--bg-dark);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .price-card {
            background: var(--bg-card);
            border: 1px solid rgba(148, 163, 184, 0.12);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            backdrop-filter: blur(12px);
            transition: all 0.35s ease;
            position: relative;
        }

        .price-card.featured {
            border-color: rgba(59, 130, 246, 0.45);
            box-shadow: 0 0 40px rgba(59, 130, 246, 0.15);
        }

        .price-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 18px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .price-card:hover {
            border-color: rgba(59, 130, 246, 0.4);
            transform: translateY(-5px);
            box-shadow: var(--shadow-card);
        }

        .price-name {
            font-size: 1rem;
            font-weight: 600;
            color: #e2e8f0;
        }

        .price-desc {
            color: var(--text-mid);
            font-size: 0.82rem;
            margin-top: 6px;
        }

        .price-amount {
            font-size: 2.4rem;
            font-weight: 800;
            margin: 24px 0 6px;
        }

        .price-amount span {
            font-size: 0.9rem;
            font-weight: 400;
            color: var(--text-mid);
        }

        .price-feats {
            list-style: none;
            margin: 20px 0 28px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .price-feats li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: #cbd5e1;
        }

        .price-feats li i {
            color: var(--accent-light);
            font-size: 0.8rem;
        }

        .price-btn {
            display: block;
            text-align: center;
            padding: 12px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.25s ease;
            border: 1px solid rgba(59, 130, 246, 0.4);
            color: #93c5fd;
            background: rgba(59, 130, 246, 0.08);
        }

        .price-btn:hover {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-color: transparent;
            box-shadow: 0 0 20px var(--glow-blue);
        }

        .price-card.featured .price-btn {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: 0 0 20px var(--glow-blue);
        }

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

        @media (max-width: 640px) {
            .pricing-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== steps ===== */
        .steps-section {
            padding: 100px 0;
            background: #081426;
        }

        .steps-track {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
            position: relative;
        }

        .steps-track::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 50px;
            right: 50px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0.3;
        }

        .step-item {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 0 10px;
        }

        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.15rem;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: 0 0 20px var(--glow-blue);
        }

        .step-item h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.84rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .steps-track {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .steps-track::before {
                display: none;
            }
        }

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

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

        .faq-list {
            max-width: 820px;
            margin: 48px auto 0;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(148, 163, 184, 0.12);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            backdrop-filter: blur(10px);
            transition: border-color 0.3s;
        }

        .faq-item:hover {
            border-color: rgba(59, 130, 246, 0.3);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 500;
            font-size: 0.97rem;
            color: #e2e8f0;
            gap: 20px;
        }

        .faq-question i {
            color: var(--primary-light);
            font-size: 0.9rem;
            transition: transform 0.3s;
            flex-shrink: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-mid);
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .faq-answer.show {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        @media (max-width: 640px) {
            .faq-question {
                font-size: 0.9rem;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-answer.show {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 90px 0;
            background: linear-gradient(135deg, #0a1a38, #081426), url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            background-blend-mode: overlay;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.35), transparent 60%);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

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

        .cta-title {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            margin-bottom: 16px;
        }

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

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

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            padding: 15px 36px;
            border-radius: 999px;
            font-weight: 600;
            box-shadow: 0 0 36px var(--glow-blue);
            transition: all 0.3s ease;
            font-size: 0.97rem;
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 52px var(--glow-blue);
        }

        .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(15, 30, 56, 0.6);
            border: 1px solid rgba(148, 163, 184, 0.3);
            color: #e2e8f0;
            padding: 15px 36px;
            border-radius: 999px;
            font-weight: 500;
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
            font-size: 0.97rem;
        }

        .btn-cta-secondary:hover {
            border-color: var(--primary-light);
            background: rgba(59, 130, 246, 0.15);
        }

        /* ===== footer ===== */
        .site-footer {
            background: #050d1c;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            padding: 70px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 0.8fr 0.8fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
        }

        .footer-about .logo-text {
            font-size: 1.2rem;
            margin-bottom: 16px;
        }

        .footer-about p {
            color: var(--text-mid);
            font-size: 0.88rem;
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-col h4 {
            color: #e2e8f0;
            font-size: 0.92rem;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            color: var(--text-mid);
            font-size: 0.85rem;
            transition: color 0.25s;
        }

        .footer-col ul a:hover {
            color: #93c5fd;
        }

        .footer-contact p {
            color: var(--text-mid);
            font-size: 0.85rem;
            line-height: 2;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 0.8rem;
            color: var(--text-dim);
            flex-wrap: wrap;
            gap: 12px;
        }

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

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== scrollbar ===== */
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: #0a1428;
        }
        ::-webkit-scrollbar-thumb {
            background: #1e3a5f;
            border-radius: 5px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #2d4b7a;
        }

        /* focus states */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

/* roulang page: category2 */
:root {
  --primary: #0b1d3a;
  --primary-light: #132a4a;
  --accent: #38bdf8;
  --accent-glow: rgba(56, 189, 248, .45);
  --bg-dark: #081426;
  --bg-deep: #060d1a;
  --text-main: #f1f5f9;
  --text-soft: #c6d3e3;
  --text-muted: #7c8fa6;
  --border-soft: rgba(255, 255, 255, .09);
  --glass-bg: rgba(255, 255, 255, .055);
  --glass-border: rgba(255, 255, 255, .12);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 8px 40px rgba(0, 0, 0, .35);
  --shadow-glow: 0 0 24px rgba(56, 189, 248, .3);
  --space-section: clamp(64px, 7vw, 100px);
}
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif; background: var(--bg-dark); color: var(--text-main); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; border: none; outline: none; background: none; }
.container-lg { width: min(1280px, 92%); margin: 0 auto; }
.section { padding: var(--space-section) 0; position: relative; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(8, 20, 38, .82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-soft);
  padding: 14px 0;
}
.header-inner { display: flex; align-items: center; gap: 24px; }
.logo-text { font-size: 20px; font-weight: 800; letter-spacing: .5px; color: #fff; display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.logo-text i { color: var(--accent); font-size: 22px; }
.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; flex-wrap: wrap; }
.nav-link {
  padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 500;
  color: var(--text-soft); transition: all .25s ease; white-space: nowrap;
}
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, .07); }
.nav-link.active { color: #fff; background: rgba(56, 189, 248, .15); box-shadow: inset 0 0 0 1px rgba(56, 189, 248, .25); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.search-box {
  display: flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid var(--glass-border);
  border-radius: 999px; padding: 8px 16px; width: 190px;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.search-box:focus-within { border-color: rgba(56, 189, 248, .5); box-shadow: 0 0 12px rgba(56, 189, 248, .15); }
.search-box i { color: var(--text-muted); font-size: 13px; }
.search-box input { color: #fff; font-size: 13px; width: 100%; background: transparent; }
.search-box input::placeholder { color: var(--text-muted); }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: linear-gradient(135deg, #38bdf8, #0ea5e9);
  color: #042133; font-weight: 700; font-size: 14px;
  padding: 12px 26px; border-radius: 999px; white-space: nowrap;
  box-shadow: var(--shadow-glow); transition: all .3s ease; border: none;
}
.btn-primary:hover { box-shadow: 0 6px 36px rgba(56, 189, 248, .55); transform: translateY(-2px); color: #042133; }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 16px rgba(56, 189, 248, .35); }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: transparent; color: var(--accent); font-weight: 600; font-size: 14px;
  padding: 11px 26px; border-radius: 999px;
  border: 1.5px solid rgba(56, 189, 248, .4); transition: all .3s ease;
}
.btn-outline:hover { background: rgba(56, 189, 248, .1); border-color: rgba(56, 189, 248, .7); box-shadow: 0 0 18px rgba(56, 189, 248, .15); }
.btn-lg { padding: 16px 42px; font-size: 16px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; border-radius: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: all .3s ease; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.btn-coupon {
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #38bdf8, #0ea5e9); color: #042133;
  font-weight: 700; font-size: 15px; padding: 10px 24px; border-radius: 999px;
  box-shadow: 0 0 20px rgba(56, 189, 248, .4); transition: all .3s ease; cursor: pointer;
}
.btn-coupon:hover { box-shadow: 0 0 32px rgba(56, 189, 248, .65); transform: scale(1.03); }
.btn-coupon.claimed { background: rgba(255, 255, 255, .1); color: #94f0ff; box-shadow: none; cursor: default; }

/* ===== Hero ===== */
.hero-coupon {
  position: relative; padding: clamp(56px, 8vw, 100px) 0;
  background-size: cover; background-position: center;
  border-bottom: 1px solid var(--border-soft);
}
.hero-coupon::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(6, 13, 26, .96) 0%, rgba(8, 20, 38, .85) 45%, rgba(8, 20, 38, .65) 100%);
}
.hero-coupon::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(600px 300px at 15% 20%, rgba(56, 189, 248, .12), transparent 70%);
}
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 18px;
  border-radius: 999px; background: rgba(56, 189, 248, .13);
  border: 1px solid rgba(56, 189, 248, .3); font-size: 13px; font-weight: 600;
  color: #94f0ff; margin-bottom: 20px;
}
.hero-copy h1 { font-size: clamp(34px, 4.5vw, 56px); font-weight: 800; line-height: 1.18; letter-spacing: -1px; margin-bottom: 14px; }
.hero-copy h1 span { color: var(--accent); }
.hero-sub { font-size: clamp(16px, 1.6vw, 20px); color: var(--text-soft); font-weight: 500; margin-bottom: 16px; }
.hero-desc { color: var(--text-muted); font-size: 15px; max-width: 480px; margin-bottom: 28px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 14px 28px; margin-bottom: 32px; }
.hero-points li { display: flex; align-items: center; gap: 8px; color: var(--text-soft); font-size: 14px; font-weight: 500; }
.hero-points i { color: var(--accent); font-size: 16px; }
.hero-stats { display: flex; gap: 36px; }
.stat-item { text-align: left; }
.stat-num { font-size: 30px; font-weight: 800; color: #fff; display: block; line-height: 1.2; }
.stat-label { font-size: 13px; color: var(--text-muted); }
.coupon-wall { display: flex; flex-direction: column; gap: 18px; position: relative; }
.coupon-main {
  display: flex; align-items: stretch; justify-content: space-between;
  background: linear-gradient(145deg, rgba(56, 189, 248, .16), rgba(255, 255, 255, .06));
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid rgba(56, 189, 248, .35);
  border-radius: 24px; padding: 30px 34px; position: relative; overflow: hidden;
  box-shadow: 0 12px 48px rgba(0, 0, 0, .4), 0 0 40px rgba(56, 189, 248, .12);
}
.coupon-main::before, .coupon-main::after {
  content: ''; position: absolute; width: 20px; height: 20px; border-radius: 50%; background: var(--bg-dark);
}
.coupon-main::before { top: 50%; left: -10px; transform: translateY(-50%); }
.coupon-main::after { top: 50%; right: -10px; transform: translateY(-50%); }
.coupon-left { display: flex; flex-direction: column; }
.coupon-label {
  display: inline-block; padding: 5px 16px; border-radius: 999px;
  background: linear-gradient(135deg, #38bdf8, #0ea5e9); color: #042133;
  font-size: 12px; font-weight: 700; margin-bottom: 12px; align-self: flex-start;
}
.coupon-value { font-size: 54px; font-weight: 800; line-height: 1; color: #fff; letter-spacing: -2px; }
.coupon-value small { font-size: 22px; font-weight: 500; }
.coupon-threshold { color: var(--text-soft); font-size: 14px; margin-top: 6px; }
.coupon-right { display: flex; flex-direction: column; justify-content: center; align-items: flex-end; gap: 12px; }
.coupon-desc { color: var(--text-muted); font-size: 13px; text-align: right; }
.coupon-side { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.coupon-small {
  background: var(--glass-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border); border-radius: 16px; padding: 18px 20px;
  display: flex; flex-direction: column; gap: 6px; transition: all .3s ease;
}
.coupon-small:hover { border-color: rgba(56, 189, 248, .4); transform: translateY(-2px); }
.coupon-small span { font-size: 13px; color: var(--text-soft); }
.coupon-small strong { font-size: 20px; color: #fff; font-weight: 700; }
.coupon-small .btn-coupon-sm {
  align-self: flex-start; padding: 6px 18px; border-radius: 999px; font-size: 12px; font-weight: 700;
  background: rgba(56, 189, 248, .2); color: #94f0ff; border: 1px solid rgba(56, 189, 248, .35); transition: all .25s ease; cursor: pointer;
}
.coupon-small .btn-coupon-sm:hover { background: rgba(56, 189, 248, .35); }
.coupon-small .btn-coupon-sm.claimed { background: rgba(255, 255, 255, .06); color: var(--text-muted); border-color: var(--border-soft); cursor: default; }

/* ===== Section Head ===== */
.section-head { text-align: center; max-width: 680px; margin: 0 auto clamp(40px, 5vw, 60px); }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 18px;
  border-radius: 999px; background: rgba(56, 189, 248, .1);
  border: 1px solid rgba(56, 189, 248, .25); color: #94f0ff;
  font-size: 13px; font-weight: 600; margin-bottom: 16px;
}
.section-head h2 { font-size: clamp(28px, 3vw, 38px); font-weight: 800; line-height: 1.25; margin-bottom: 12px; letter-spacing: -.5px; }
.section-head p { color: var(--text-muted); font-size: 15px; }

/* ===== Features ===== */
.features-section { background: linear-gradient(to bottom, var(--bg-dark), #0a1526); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feature-card {
  background: var(--glass-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: 34px 28px; transition: all .35s ease; position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, transparent, rgba(56, 189, 248, .6), transparent);
  opacity: 0; transition: opacity .3s ease;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); border-color: rgba(56, 189, 248, .3); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px; height: 56px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
  background: rgba(56, 189, 248, .12); color: var(--accent); font-size: 26px; margin-bottom: 20px;
  border: 1px solid rgba(56, 189, 248, .2); transition: all .3s ease;
}
.feature-card:hover .feature-icon { background: rgba(56, 189, 248, .22); box-shadow: 0 0 24px rgba(56, 189, 248, .2); }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

/* ===== Packages ===== */
.packages-section { background: var(--bg-deep); }
.package-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.package-card {
  background: var(--glass-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg); overflow: hidden;
  display: flex; flex-direction: column; transition: all .35s ease;
}
.package-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); border-color: rgba(56, 189, 248, .3); }
.package-img { height: 190px; overflow: hidden; position: relative; }
.package-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(6, 13, 26, .4), transparent); }
.package-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.package-card:hover .package-img img { transform: scale(1.06); }
.package-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.package-body h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.package-body > p { color: var(--text-muted); font-size: 13px; margin-bottom: 14px; }
.package-body ul { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.package-body ul li { position: relative; padding-left: 20px; font-size: 14px; color: var(--text-soft); }
.package-body ul li::before {
  content: '✓'; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 700;
}
.package-body .btn-outline { margin-top: auto; align-self: flex-start; }

/* ===== Scenes ===== */
.scenes-section { background: linear-gradient(to bottom, var(--bg-deep), #0a1526); }
.scenes-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.scene-item {
  background: var(--glass-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: 34px 28px; transition: all .35s ease; position: relative;
}
.scene-item:hover { transform: translateY(-4px); background: rgba(56, 189, 248, .08); border-color: rgba(56, 189, 248, .3); }
.scene-num { font-size: 40px; font-weight: 800; color: rgba(56, 189, 248, .35); line-height: 1; margin-bottom: 16px; }
.scene-item h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.scene-item p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

/* ===== Cases ===== */
.cases-section { background: var(--bg-dark); }
.cases-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.case-card {
  background: var(--glass-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg); overflow: hidden;
  display: flex; flex-direction: column; transition: all .35s ease;
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.case-card img { height: 260px; width: 100%; object-fit: cover; }
.case-info { padding: 24px 28px; }
.case-info h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.case-info p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

/* ===== Pricing ===== */
.pricing-section { background: var(--bg-deep); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 1080px; margin: 0 auto; }
.price-card {
  background: var(--glass-bg); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border); border-radius: 24px; padding: 38px 30px;
  display: flex; flex-direction: column; transition: all .35s ease; position: relative;
}
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); }
.price-card.featured {
  background: linear-gradient(160deg, rgba(56, 189, 248, .14), rgba(255, 255, 255, .05));
  border-color: rgba(56, 189, 248, .4); box-shadow: 0 12px 44px rgba(56, 189, 248, .1);
}
.price-tag {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  padding: 5px 20px; border-radius: 999px; background: linear-gradient(135deg, #38bdf8, #0ea5e9);
  color: #042133; font-size: 12px; font-weight: 700; white-space: nowrap;
}
.price-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 16px; text-align: center; }
.price { font-size: 44px; font-weight: 800; color: #fff; text-align: center; margin-bottom: 24px; letter-spacing: -2px; }
.price span { font-size: 16px; font-weight: 400; color: var(--text-muted); letter-spacing: 0; }
.price-card ul { display: flex; flex-direction: column; gap: 10px; margin-bottom: 30px; flex: 1; }
.price-card ul li { position: relative; padding-left: 24px; font-size: 14px; color: var(--text-soft); }
.price-card ul li::before {
  content: '✓'; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 700; font-size: 15px;
}
.price-card .btn-primary, .price-card .btn-outline { align-self: center; width: 100%; justify-content: center; }

/* ===== FAQ ===== */
.faq-section { background: linear-gradient(to bottom, var(--bg-deep), #0a1526); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--glass-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  padding: 24px 28px; transition: all .3s ease;
}
.faq-item:hover { border-color: rgba(56, 189, 248, .3); }
.faq-item h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 8px; position: relative; padding-right: 28px; }
.faq-item h3::after {
  content: '+'; position: absolute; right: 0; top: -2px; font-size: 22px; color: var(--accent); font-weight: 400; transition: transform .3s ease;
}
.faq-item p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.faq-item.open h3::after { transform: rotate(45deg); }

/* ===== CTA ===== */
.cta-section { padding: clamp(56px, 6vw, 80px) 0; position: relative; overflow: hidden; }
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(900px 400px at 50% 50%, rgba(56, 189, 248, .12), transparent 70%);
}
.cta-card {
  position: relative; z-index: 2; text-align: center; max-width: 680px; margin: 0 auto;
  background: var(--glass-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(56, 189, 248, .25); border-radius: 32px;
  padding: clamp(40px, 5vw, 64px) clamp(24px, 4vw, 56px);
  box-shadow: 0 16px 60px rgba(0, 0, 0, .4), 0 0 60px rgba(56, 189, 248, .08);
}
.cta-card h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; margin-bottom: 14px; color: #fff; }
.cta-card p { color: var(--text-muted); font-size: 15px; margin-bottom: 30px; }

/* ===== Footer ===== */
.site-footer { background: #060d1a; border-top: 1px solid var(--border-soft); padding: 60px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-about .logo-text { margin-bottom: 14px; }
.footer-about p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { font-size: 14px; color: var(--text-muted); transition: color .25s ease, padding-left .25s ease; }
.footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact p { font-size: 14px; color: var(--text-muted); margin-bottom: 6px; }
.footer-bottom {
  border-top: 1px solid var(--border-soft); padding-top: 22px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-size: 13px; color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .package-grid { grid-template-columns: repeat(2, 1fr); }
  .scenes-grid { grid-template-columns: repeat(2, 1fr); }
  .search-box { display: none; }
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .header-inner { flex-wrap: wrap; }
  .main-nav { order: 3; flex-basis: 100%; justify-content: flex-start; overflow-x: auto; padding-bottom: 4px; }
  .nav-toggle { display: flex; }
  .header-actions { margin-left: auto; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; }
  .cases-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .grid-4 { grid-template-columns: 1fr; }
  .package-grid { grid-template-columns: 1fr; }
  .scenes-grid { grid-template-columns: 1fr; }
  .coupon-side { grid-template-columns: 1fr; }
  .coupon-main { flex-direction: column; align-items: flex-start; gap: 16px; }
  .coupon-right { align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-stats { gap: 20px; }
  .stat-num { font-size: 24px; }
  .header-actions .btn-primary { padding: 10px 18px; font-size: 13px; }
  .logo-text { font-size: 17px; }
}

/* roulang page: category4 */
:root {
            --primary: #0A1628;
            --primary-light: #132744;
            --accent: #C9A96A;
            --accent-hover: #D9BC85;
            --text: #F1F5F9;
            --text-muted: rgba(241, 245, 249, 0.7);
            --border: rgba(255, 255, 255, 0.08);
            --glass-bg: rgba(19, 39, 68, 0.55);
            --radius: 16px;
            --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

        button {
            font-family: inherit;
            cursor: pointer;
        }

        input {
            font-family: inherit;
        }

        .container-lg {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 22, 40, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
        }

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

        .header-left {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            min-width: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent), #a8844a);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #0A1628;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .main-nav::-webkit-scrollbar {
            display: none;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 10px;
            white-space: nowrap;
            transition: var(--transition);
        }

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

        .nav-link.active {
            color: var(--accent);
            background: rgba(201, 169, 106, 0.12);
        }

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

        .nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 8px 14px;
            min-width: 180px;
            transition: var(--transition);
        }

        .nav-search:focus-within {
            border-color: rgba(201, 169, 106, 0.4);
            box-shadow: 0 0 0 3px rgba(201, 169, 106, 0.1);
        }

        .nav-search i {
            font-size: 13px;
            color: var(--text-muted);
        }

        .nav-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text);
            font-size: 13px;
            width: 100%;
        }

        .nav-search input::placeholder {
            color: rgba(241, 245, 249, 0.4);
        }

        .kbd {
            font-size: 11px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 2px 6px;
            white-space: nowrap;
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 20px;
            padding: 8px;
            border-radius: 10px;
        }

        /* Mobile Menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 22, 40, 0.97);
            backdrop-filter: blur(20px);
            z-index: 999;
            padding: 90px 32px 40px;
            flex-direction: column;
            gap: 6px;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu .mobile-close {
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 24px;
            color: var(--text);
            background: none;
            border: none;
            padding: 8px;
        }

        .mobile-menu a {
            font-size: 20px;
            font-weight: 600;
            padding: 14px 16px;
            border-radius: 12px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .mobile-menu a:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-menu a.active {
            color: var(--accent);
            background: rgba(201, 169, 106, 0.1);
        }

        .mobile-menu .mobile-search {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 12px 16px;
            margin-bottom: 20px;
        }

        .mobile-menu .mobile-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text);
            font-size: 16px;
            width: 100%;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 12px;
            padding: 14px 28px;
            transition: var(--transition);
            border: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), #b8944f);
            color: #0A1628;
            box-shadow: 0 4px 24px rgba(201, 169, 106, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(201, 169, 106, 0.55);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 16px rgba(201, 169, 106, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            color: var(--text);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
            border-radius: 10px;
        }

        .btn-block {
            width: 100%;
        }

        /* Hero */
        .hero {
            position: relative;
            padding: 100px 0 90px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(100deg, rgba(10, 22, 40, 0.94) 0%, rgba(10, 22, 40, 0.82) 50%, rgba(10, 22, 40, 0.65) 100%);
        }

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

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(201, 169, 106, 0.12);
            border: 1px solid rgba(201, 169, 106, 0.2);
            padding: 6px 14px;
            border-radius: 100px;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 1px;
            margin-bottom: 20px;
            background: linear-gradient(90deg, #ffffff, rgba(255, 255, 255, 0.85));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 540px;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, auto);
            gap: 40px;
            max-width: 480px;
        }

        .hero-stat strong {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            display: block;
            line-height: 1.2;
        }

        .hero-stat strong span {
            font-size: 18px;
            color: var(--accent);
        }

        .hero-stat span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Fund Card */
        .hero-fund-card {
            position: relative;
            z-index: 2;
            background: var(--glass-bg);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 40px 36px;
            box-shadow: var(--shadow);
        }

        .progress-ring-wrap {
            display: flex;
            align-items: center;
            gap: 24px;
            margin-bottom: 30px;
        }

        .progress-ring-label strong {
            font-size: 24px;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }

        .progress-ring-label span {
            font-size: 14px;
            color: var(--text-muted);
        }

        .tier-preview-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .tier-preview {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 28px;
        }

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

        .tier-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(201, 169, 106, 0.3);
            transform: translateX(4px);
        }

        .tier-item-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }

        .tier-item-price {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
        }

        .support-hint {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 14px;
        }

        /* Section */
        .section {
            padding: 90px 0;
        }

        .section-alt {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-eyebrow {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }

        .section-head {
            margin-bottom: 48px;
        }

        /* Feature Cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: rgba(255, 255, 255, 0.035);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 36px 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .feature-card:hover {
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-6px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            border-color: rgba(201, 169, 106, 0.25);
        }

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

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(201, 169, 106, 0.2), rgba(201, 169, 106, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 24px;
        }

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

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

        .feature-card .feature-img {
            margin-top: 20px;
            border-radius: 14px;
            overflow: hidden;
            height: 180px;
        }

        .feature-card .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        /* Scenarios */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .scenario-card {
            position: relative;
            border-radius: 22px;
            overflow: hidden;
            background: var(--primary-light);
            border: 1px solid var(--border);
            min-height: 420px;
            display: flex;
            align-items: flex-end;
            transition: var(--transition);
        }

        .scenario-card img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.55;
            transition: var(--transition);
        }

        .scenario-card:hover img {
            transform: scale(1.04);
            opacity: 0.45;
        }

        .scenario-overlay {
            position: relative;
            padding: 36px 30px;
            background: linear-gradient(to top, rgba(10, 22, 40, 0.92), transparent);
            width: 100%;
        }

        .scenario-overlay h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .scenario-overlay p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 340px;
        }

        .scenario-tag {
            display: inline-flex;
            gap: 6px;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(201, 169, 106, 0.15);
            border: 1px solid rgba(201, 169, 106, 0.2);
            padding: 4px 12px;
            border-radius: 100px;
            margin-bottom: 14px;
        }

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

        .testimonial-card {
            background: rgba(255, 255, 255, 0.035);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 32px 28px;
            transition: var(--transition);
        }

        .testimonial-card:hover {
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-4px);
            border-color: rgba(201, 169, 106, 0.2);
        }

        .testimonial-stars {
            color: var(--accent);
            font-size: 14px;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }

        .testimonial-card blockquote {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
            font-style: normal;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #8a6a35);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #0A1628;
            font-size: 16px;
            flex-shrink: 0;
        }

        .testimonial-author strong {
            display: block;
            font-size: 15px;
            color: var(--text);
        }

        .testimonial-author span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Plans (Pricing) */
        .plans-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: center;
        }

        .plan-card {
            background: rgba(255, 255, 255, 0.035);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 40px 32px;
            transition: var(--transition);
            text-align: center;
            position: relative;
        }

        .plan-card:hover {
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-8px);
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
            border-color: rgba(201, 169, 106, 0.25);
        }

        .plan-card.featured {
            background: rgba(201, 169, 106, 0.07);
            border-color: rgba(201, 169, 106, 0.35);
            transform: scale(1.03);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
        }

        .plan-card.featured:hover {
            transform: scale(1.03) translateY(-8px);
        }

        .plan-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, var(--accent), #b8944f);
            color: #0A1628;
            font-size: 12px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 100px;
            white-space: nowrap;
        }

        .plan-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .plan-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .plan-price {
            font-size: 44px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .plan-price small {
            font-size: 16px;
            color: var(--text-muted);
            font-weight: 400;
            margin-left: 4px;
        }

        .plan-features {
            list-style: none;
            margin: 0 0 28px;
            text-align: left;
        }

        .plan-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
            padding: 7px 0;
            line-height: 1.6;
        }

        .plan-features li i {
            color: var(--accent);
            font-size: 13px;
            margin-top: 4px;
            flex-shrink: 0;
        }

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

        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(201, 169, 106, 0.2);
        }

        .faq-item summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 22px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            list-style: none;
        }

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

        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .faq-item .faq-body {
            padding: 0 26px 22px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* CTA Section */
        .cta-section {
            padding: 90px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .cta-bg::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 22, 40, 0.88);
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-inner h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.8;
        }

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

        .cta-contact {
            margin-top: 28px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .cta-contact a {
            color: var(--accent);
            font-weight: 600;
        }

        /* Footer */
        .site-footer {
            background: #060F1D;
            border-top: 1px solid var(--border);
            padding: 70px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 50px;
        }

        .footer-about p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 16px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text);
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--accent);
        }

        .footer-contact p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 1200px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .plans-grid {
                grid-template-columns: repeat(2, 1fr);
                max-width: 760px;
                margin: 0 auto;
            }
            .plan-card.featured {
                transform: none;
            }
            .plan-card.featured:hover {
                transform: translateY(-8px);
            }
        }

        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-search {
                display: none;
            }
            .header-left {
                gap: 16px;
            }
            .hero {
                padding: 70px 0 60px;
            }
            .hero-title {
                font-size: 36px;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-fund-card {
                padding: 32px 28px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .container-lg {
                padding: 0 20px;
            }
            .section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .hero-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .plans-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat strong {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .cta-inner h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 64px;
            }
            .logo-text {
                font-size: 16px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 12px;
            }
            .btn-sm {
                padding: 8px 14px;
                font-size: 13px;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .hero-stat strong {
                font-size: 20px;
            }
            .hero-stat span {
                font-size: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
        }

/* roulang page: category3 */
/* ========== 设计变量 ========== */
:root {
  --brand-bg: #0a0f1c;
  --brand-bg-2: #101a2e;
  --brand-primary: #0b1424;
  --brand-accent: #22d3ee;
  --brand-accent-2: #60a5fa;
  --brand-gold: #f5b942;
  --text-main: #e7edf7;
  --text-muted: #93a1bd;
  --text-weak: #64748b;
  --border-line: rgba(148, 163, 184, 0.15);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, .25);
  --shadow-md: 0 14px 34px rgba(0, 0, 0, .35);
  --shadow-glow: 0 0 26px rgba(34, 211, 238, .25);
  --transition: all .25s ease;
}

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  background: var(--brand-bg);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, textarea { font: inherit; border: none; outline: none; }
:focus-visible {
  outline: 2px solid var(--brand-accent);
  outline-offset: 2px;
  border-radius: 6px;
}
::selection { background: rgba(34, 211, 238, .3); }

/* ========== 容器 ========== */
.container-lg {
  width: min(1200px, calc(100% - 48px));
  margin-inline: auto;
}
@media (max-width: 768px) {
  .container-lg { width: calc(100% - 32px); }
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand-accent), #3b82f6);
  color: #fff;
  box-shadow: 0 8px 22px rgba(34, 211, 238, .28), 0 0 14px rgba(34, 211, 238, .12);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(34, 211, 238, .38), 0 0 22px rgba(34, 211, 238, .2);
}
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .2);
  color: var(--text-main);
  backdrop-filter: blur(12px);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .32);
  transform: translateY(-2px);
}
.btn-sm { padding: 9px 20px; font-size: 14px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(10, 15, 28, .82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-line);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  height: 72px;
}
.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .5px;
  white-space: nowrap;
  background: linear-gradient(135deg, #fff, #c7d6f0);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
  overflow-x: auto;
  scrollbar-width: none;
}
.main-nav::-webkit-scrollbar { display: none; }
.nav-link {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14.5px;
  color: var(--text-muted);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .07);
}
.nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(34, 211, 238, .18), rgba(96, 165, 250, .12));
  border: 1px solid rgba(34, 211, 238, .28);
}
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--border-line);
  border-radius: 999px;
  padding: 8px 16px;
  color: var(--text-muted);
  transition: var(--transition);
}
.search-box:focus-within {
  border-color: rgba(34, 211, 238, .5);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, .12);
}
.search-box i { font-size: 13px; }
.search-box input {
  background: transparent;
  border: none;
  color: #fff;
  width: 120px;
  font-size: 13.5px;
}
.search-box input::placeholder { color: var(--text-weak); }
.nav-toggle {
  display: none;
  background: transparent;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 10px;
  transition: background .2s;
}
.nav-toggle:hover { background: rgba(255,255,255,.08); }
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 10px 20px 18px;
  background: rgba(10, 15, 28, .96);
  border-top: 1px solid var(--border-line);
}
.mobile-menu.open { display: flex; }
.mobile-menu .nav-link { padding: 12px 14px; width: 100%; }

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 96px 0 96px;
  overflow: hidden;
  background: #070c18;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  opacity: .5;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 12, 24, .96) 0%, rgba(7, 12, 24, .72) 42%, rgba(7, 12, 24, .3) 80%),
    linear-gradient(0deg, rgba(7, 12, 24, .96) 0%, transparent 38%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-accent);
  background: rgba(34, 211, 238, .1);
  border: 1px solid rgba(34, 211, 238, .2);
  border-radius: 999px;
  padding: 7px 16px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff, #dbe6ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 16.5px;
  color: #b8c6df;
  max-width: 540px;
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--text-muted);
  font-size: 14px;
}
.hero-tags i { color: var(--brand-accent); margin-right: 4px; }

/* Hero 海报卡片 */
.hero-poster {
  display: flex;
  justify-content: center;
}
.poster-card {
  width: 100%;
  max-width: 420px;
  background: linear-gradient(145deg, rgba(255,255,255,.10), rgba(255,255,255,.03));
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 26px;
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .5), 0 0 0 1px rgba(34,211,238,.08);
  position: relative;
}
.poster-img {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.poster-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.poster-card:hover .poster-img img { transform: scale(1.04); }
.poster-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(7,12,24,.9) 100%);
}
.poster-hot {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(239, 68, 68, .9);
  color: #fff;
  font-size: 12.5px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: 0 6px 16px rgba(239,68,68,.35);
}
.poster-info {
  padding: 22px 24px 26px;
}
.poster-label {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--brand-accent);
  text-transform: uppercase;
  font-weight: 600;
}
.poster-info h3 {
  font-size: 21px;
  font-weight: 700;
  color: #fff;
  margin: 6px 0 10px;
}
.poster-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.poster-meta span {
  font-size: 12.5px;
  color: var(--text-muted);
  background: rgba(255,255,255,.06);
  padding: 4px 10px;
  border-radius: 999px;
}

/* ========== 通用板块 ========== */
.section { padding: 88px 0; }
.section-alt { background: var(--brand-bg-2); }
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--brand-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: 34px;
  line-height: 1.3;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-muted);
}

/* ========== 数据条 ========== */
.stats-bar {
  border-top: 1px solid var(--border-line);
  border-bottom: 1px solid var(--border-line);
  background: rgba(16, 26, 46, .6);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 32px 0;
}
.stat-item {
  text-align: center;
  padding: 10px 20px;
  border-right: 1px solid var(--border-line);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--brand-accent), #fff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ========== 价值主张卡片 ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.glass-card {
  background: linear-gradient(145deg, rgba(255,255,255,.075), rgba(255,255,255,.02));
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.glass-card:hover {
  transform: translateY(-6px);
  border-color: rgba(34, 211, 238, .3);
  box-shadow: var(--shadow-md), 0 0 28px rgba(34, 211, 238, .07);
}
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #fff;
  background: linear-gradient(135deg, var(--brand-accent), #3b82f6);
  box-shadow: 0 8px 20px rgba(34, 211, 238, .25);
  margin-bottom: 20px;
}
.glass-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.glass-card p {
  color: var(--text-muted);
  font-size: 15px;
}

/* ========== 类型选择 ========== */
.type-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.type-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--brand-primary);
  border: 1px solid var(--border-line);
  transition: transform .3s ease, box-shadow .3s ease;
}
.type-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md), 0 0 30px rgba(34,211,238,.08);
}
.type-img {
  aspect-ratio: 16/10;
  overflow: hidden;
}
.type-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.type-card:hover .type-img img { transform: scale(1.06); }
.type-body { padding: 22px 24px 26px; }
.type-body h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.type-body p { font-size: 14.5px; color: var(--text-muted); margin-bottom: 12px; }
.type-tag {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--brand-accent);
  background: rgba(34,211,238,.1);
  border: 1px solid rgba(34,211,238,.2);
  padding: 4px 12px;
  border-radius: 999px;
  margin-right: 6px;
  margin-top: 4px;
}

/* ========== 场景 ========== */
.scene-list { display: flex; flex-direction: column; gap: 56px; }
.scene-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.scene-item.reverse .scene-media { order: 2; }
.scene-item.reverse .scene-text { order: 1; }
.scene-media {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border-line);
  box-shadow: var(--shadow-md);
}
.scene-media img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.scene-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(7,12,24,.6) 100%);
  pointer-events: none;
}
.scene-num {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--brand-accent);
  background: rgba(34,211,238,.1);
  padding: 4px 12px;
  border-radius: 999px;
  display: inline-block;
  margin-bottom: 14px;
}
.scene-text h3 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.scene-text p {
  font-size: 15.5px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

/* ========== 成功案例 ========== */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  background: linear-gradient(145deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  backdrop-filter: blur(14px);
  transition: var(--transition);
}
.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34,211,238,.25);
  box-shadow: var(--shadow-md);
}
.case-stars {
  color: var(--brand-gold);
  font-size: 14px;
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.case-quote {
  font-size: 15px;
  color: #cdd7e8;
  line-height: 1.8;
  margin-bottom: 24px;
}
.case-user {
  display: flex;
  align-items: center;
  gap: 12px;
}
.case-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-accent), #3b82f6);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.case-name { font-weight: 600; color: #fff; font-size: 15px; }
.case-role { font-size: 13px; color: var(--text-weak); }

/* ========== 价格 / 套餐 ========== */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}
.menu-card {
  position: relative;
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid var(--border-line);
  border-radius: 24px;
  padding: 34px 28px;
  display: flex;
  flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease;
}
.menu-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md), 0 0 30px rgba(34,211,238,.08);
}
.menu-card.popular {
  border-color: rgba(34,211,238,.4);
  box-shadow: 0 0 34px rgba(34,211,238,.1);
}
.popular-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--brand-accent), #3b82f6);
  color: #fff;
  font-size: 12.5px;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(34,211,238,.3);
  white-space: nowrap;
}
.menu-name {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}
.menu-sub {
  font-size: 13.5px;
  color: var(--text-weak);
  margin-bottom: 18px;
}
.menu-price {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 20px;
}
.menu-price small {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-muted);
}
.menu-features {
  margin-bottom: 26px;
  padding-top: 8px;
  border-top: 1px solid var(--border-line);
}
.menu-features li {
  display: flex;
  gap: 10px;
  padding: 7px 0;
  font-size: 14.5px;
  color: var(--text-muted);
}
.menu-features i {
  color: var(--brand-accent);
  font-size: 13px;
  margin-top: 5px;
}
.menu-card .btn { margin-top: auto; }

/* ========== FAQ ========== */
.faq-wrap {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border-line);
  border-radius: 16px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .3s, background .3s;
}
.faq-item.open {
  border-color: rgba(34,211,238,.3);
  background: rgba(34,211,238,.04);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
  background: transparent;
  color: var(--text-main);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: color .2s;
}
.faq-q:hover { color: #fff; }
.faq-q i {
  color: var(--brand-accent);
  transition: transform .3s;
  flex-shrink: 0;
}
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-a p {
  padding: 0 22px 22px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ========== CTA ========== */
.cta-section {
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 48px;
  border-radius: 32px;
  background: linear-gradient(145deg, rgba(34,211,238,.08), rgba(96,165,250,.04));
  border: 1px solid rgba(34,211,238,.25);
  backdrop-filter: blur(18px);
  box-shadow: 0 0 60px rgba(34,211,238,.08);
}
.cta-inner h2 {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.cta-inner p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 30px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #070c18;
  border-top: 1px solid var(--border-line);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: 40px;
  margin-bottom: 44px;
}
.footer-about .logo-text {
  font-size: 20px;
  margin-bottom: 14px;
}
.footer-about p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color .2s, padding-left .2s;
}
.footer-col a:hover {
  color: var(--brand-accent);
  padding-left: 4px;
}
.footer-contact p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid var(--border-line);
  padding-top: 24px;
  font-size: 13px;
  color: var(--text-weak);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 36px; }
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-poster { justify-content: flex-start; }
  .poster-card { max-width: 100%; }
  .main-nav { gap: 2px; }
  .nav-link { padding: 7px 10px; font-size: 13.5px; }
  .search-box { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .header-right .btn { display: none; }
  .nav-toggle { display: block; }
  .header-inner { height: 64px; }
  .hero { padding: 64px 0 72px; }
  .hero h1 { font-size: 30px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px 0; }
  .stat-item { border-right: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .type-grid { grid-template-columns: 1fr; }
  .scene-item, .scene-item.reverse {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .scene-item.reverse .scene-media { order: 1; }
  .scene-item.reverse .scene-text { order: 2; }
  .case-grid { grid-template-columns: 1fr; }
  .menu-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .menu-card.popular { order: -1; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-inner { padding: 40px 28px; }
}

@media (max-width: 520px) {
  .section { padding: 56px 0; }
  .section-title { font-size: 26px; }
  .hero h1 { font-size: 25px; }
  .logo-text { font-size: 15.5px; }
  .container-lg { width: calc(100% - 20px); }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 26px; }
  .hero-desc { font-size: 15px; }
  .hero-tags { gap: 12px; font-size: 13px; }
  .btn { padding: 12px 20px; font-size: 14px; }
  .glass-card { padding: 24px 20px; }
}

/* roulang page: category5 */
:root {
  --primary: #00d4ff;
  --primary-rgb: 0, 212, 255;
  --accent: #f5b942;
  --bg-dark: #0a1628;
  --bg-deeper: #07101f;
  --bg-card: rgba(255, 255, 255, 0.06);
  --border-glass: rgba(255, 255, 255, 0.10);
  --text-main: #f2f8ff;
  --text-muted: #9db1c7;
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.25);
}

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

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

button, input {
  font-family: inherit;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #00d4ff, #0090ff);
  color: #04121f;
  box-shadow: 0 0 22px rgba(0, 212, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(0, 212, 255, 0.45);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #e6f7ff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(0, 212, 255, 0.5);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, #f5b942, #ff8a3d);
  color: #1a1105;
  box-shadow: 0 0 22px rgba(245, 185, 66, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(245, 185, 66, 0.4);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
}

/* ===== Header / 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 16, 31, 0.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 72px;
}

.logo-text {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #eaf7ff, #00d4ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
  margin-right: 8px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 10px;
  transition: all 0.25s ease;
  position: relative;
  white-space: nowrap;
}

.nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
  color: #ffffff;
  background: rgba(0, 212, 255, 0.12);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 3px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.search-box {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  padding: 0 14px;
  height: 40px;
  width: 190px;
  transition: all 0.3s ease;
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
  width: 220px;
}

.search-box i {
  color: var(--text-muted);
  font-size: 13px;
  margin-right: 8px;
}

.search-box input {
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 14px;
  width: 100%;
}

.search-box input::placeholder {
  color: #7a8fa5;
}

.nav-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 18px;
  cursor: pointer;
  transition: background 0.3s;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.16);
}

/* ===== 通用板块 ===== */
.section {
  padding: 90px 0;
  position: relative;
}

.section-tight {
  padding: 60px 0;
}

.section-label {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.10);
  border: 1px solid rgba(0, 212, 255, 0.2);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 640px;
}

.text-gradient {
  background: linear-gradient(90deg, #eaf7ff, #00d4ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 212, 255, 0.08);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 680px;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 16, 31, 0.72) 0%, rgba(7, 16, 31, 0.92) 100%);
}

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

.hero-author-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px 22px;
  border-radius: 999px;
  max-width: 720px;
  margin-bottom: 48px;
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.author-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00d4ff, #0090ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #04121f;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.author-info {
  flex: 1;
  min-width: 0;
}

.author-name {
  font-size: 16px;
  font-weight: 700;
  white-space: nowrap;
}

.author-title {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

.author-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.badge-pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 14px;
  background: rgba(0, 212, 255, 0.12);
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: #d8f7ff;
  white-space: nowrap;
}

.hero-follow {
  flex-shrink: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  font-size: 14px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(245, 185, 66, 0.14);
  border: 1px solid rgba(245, 185, 66, 0.25);
  color: #ffe6b0;
  margin-bottom: 22px;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 22px;
}

.hero-summary {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.9;
  max-width: 520px;
  margin-bottom: 32px;
}

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

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  padding: 22px;
  text-align: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 16px;
  backdrop-filter: blur(10px);
}

.stat-card .num {
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(90deg, #00d4ff, #7ae5ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.3;
}

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

/* ===== 服务亮点 ===== */
.features {
  background: var(--bg-deeper);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.features-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.features-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.features-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(7, 16, 31, 0.6));
}

.media-caption {
  position: absolute;
  bottom: 20px;
  left: 20px;
  z-index: 2;
  color: #fff;
  font-size: 14px;
  background: rgba(7, 16, 31, 0.6);
  backdrop-filter: blur(6px);
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.feature-item {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 16px;
  transition: all 0.3s ease;
}

.feature-item:hover {
  background: rgba(0, 212, 255, 0.06);
  border-color: rgba(0, 212, 255, 0.25);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 144, 255, 0.2));
  border: 1px solid rgba(0, 212, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 20px;
  flex-shrink: 0;
}

.feature-item h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.feature-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== 场景 ===== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.scenario-card {
  padding: 28px 22px;
  text-align: center;
}

.scenario-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(0, 144, 255, 0.15));
  border: 1px solid rgba(0, 212, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--primary);
}

.scenario-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.scenario-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== 流程 ===== */
.process {
  background: var(--bg-deeper);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}

.process-grid::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, rgba(0, 212, 255, 0.1), rgba(0, 212, 255, 0.5), rgba(0, 212, 255, 0.1));
}

.process-step {
  position: relative;
  text-align: center;
  padding: 0 8px;
}

.step-num {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--bg-deeper);
  border: 2px solid var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.process-step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== 社会认同 ===== */
.proof {
  background: url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
  position: relative;
}

.proof::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(7, 16, 31, 0.96), rgba(7, 16, 31, 0.84));
}

.proof .container-lg {
  position: relative;
  z-index: 2;
}

.proof-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 50px;
}

.proof-card {
  padding: 28px 20px;
  text-align: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 16px;
  backdrop-filter: blur(10px);
}

.proof-card .num {
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(90deg, #00d4ff, #7ae5ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.proof-card .label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 6px;
}

.proof-quote {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 40px;
  text-align: center;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  backdrop-filter: blur(12px);
}

.proof-quote i {
  font-size: 32px;
  color: var(--primary);
  opacity: 0.5;
  margin-bottom: 16px;
}

.proof-quote p {
  font-size: 17px;
  line-height: 1.8;
  color: #e8f4ff;
}

.proof-quote .source {
  margin-top: 16px;
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
}

/* ===== 价格 ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.pricing-card {
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.pricing-card.highlight {
  border-color: rgba(0, 212, 255, 0.45);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.12);
}

.pricing-card.highlight::before {
  content: '推荐';
  position: absolute;
  top: 18px;
  right: -32px;
  background: linear-gradient(135deg, #00d4ff, #0090ff);
  color: #04121f;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 36px;
  transform: rotate(45deg);
}

.pricing-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--primary);
  align-self: flex-start;
  margin-bottom: 16px;
}

.pricing-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.pricing-price {
  margin-bottom: 20px;
}

.pricing-price .price {
  font-size: 36px;
  font-weight: 900;
  color: #ffffff;
}

.pricing-price .unit {
  font-size: 14px;
  color: var(--text-muted);
}

.pricing-list {
  list-style: none;
  margin-bottom: 28px;
  flex: 1;
}

.pricing-list li {
  padding: 6px 0;
  padding-left: 28px;
  position: relative;
  font-size: 14px;
  color: #c5d8ea;
}

.pricing-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(0, 212, 255, 0.25);
}

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

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

.faq-item summary::after {
  content: '+';
  font-size: 22px;
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background: url('/assets/images/backpic/back-3.jpg') center center / cover no-repeat;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(7, 16, 31, 0.92), rgba(7, 16, 31, 0.78));
}

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

.cta-section h2 {
  font-size: 38px;
  font-weight: 900;
  margin-bottom: 14px;
}

.cta-section p {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
}

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

.cta-phone {
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(90deg, #f5b942, #ffd37a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 20px;
  display: inline-block;
  letter-spacing: 1px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-deeper);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-about .logo-text {
  font-size: 22px;
  margin-bottom: 14px;
  display: inline-block;
}

.footer-about p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-top: 16px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #e8f4ff;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--text-muted);
  transition: all 0.3s ease;
}

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

.footer-contact p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: #667e96;
  flex-wrap: wrap;
}

.footer-bottom span {
  white-space: nowrap;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 14px 0;
    gap: 12px;
  }

  .main-nav {
    order: 3;
    flex-basis: 100%;
    overflow-x: auto;
    padding-bottom: 6px;
    justify-content: flex-start;
  }

  .main-nav .nav-link {
    flex-shrink: 0;
  }

  .search-box {
    width: 160px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero h1 {
    font-size: 36px;
  }

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

  .process-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px 20px;
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 28px;
  }

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

  .header-actions .btn {
    display: none;
  }

  .header-actions {
    margin-left: 0;
  }

  .search-box {
    width: 44px;
    padding: 0;
    justify-content: center;
  }

  .search-box i {
    margin-right: 0;
  }

  .search-box input {
    display: none;
  }

  .main-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 10px 0;
    background: rgba(7, 16, 31, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    margin-top: 8px;
  }

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

  .main-nav .nav-link {
    padding: 12px 16px;
    text-align: left;
    border-radius: 10px;
  }

  .nav-link.active::after {
    left: 18px;
    right: auto;
    width: 24px;
  }

  .hero {
    min-height: auto;
    padding: 90px 0 60px;
  }

  .hero-author-bar {
    flex-wrap: wrap;
    border-radius: 20px;
    padding: 16px 18px;
  }

  .author-badges {
    order: 3;
  }

  .hero h1 {
    font-size: 30px;
  }

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

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .features-media img {
    height: 260px;
  }

  .proof-stats {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .proof-quote {
    padding: 24px 20px;
  }

  .proof-quote p {
    font-size: 15px;
  }

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

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

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

  .hero-badge {
    font-size: 12px;
    padding: 5px 12px;
  }

  .hero h1 {
    font-size: 26px;
  }

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

  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .process-grid {
    grid-template-columns: 1fr;
  }

  .process-step {
    padding: 0 20px;
  }

  .stat-card .num {
    font-size: 24px;
  }

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

  .search-box {
    display: none;
  }
}