/* roulang page: index */
:root {
  --primary: #7C3AED;
  --primary-dark: #6D28D9;
  --primary-light: #A78BFA;
  --accent: #EC4899;
  --accent-light: #F9A8D4;
  --success: #10B981;
  --ink: #0B0716;
  --ink-2: #16112B;
  --bg-light: #F8FAFC;
  --card-bg: #FFFFFF;
  --text-main: #1F2937;
  --text-sub: #6B7280;
  --text-on-dark: #F9FAFB;
  --border-light: rgba(0,0,0,0.08);
  --border-dark: rgba(255,255,255,0.10);
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-pill: 9999px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 24px rgba(0,0,0,0.10);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-number: ui-sans-serif, "DIN Alternate", "Roboto", 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);
  color: var(--text-main);
  background: #fff;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 14px; color: var(--text-main); }

.container { max-width: 1200px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }

/* ============ Header ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 1px 8px rgba(0,0,0,0.04);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 18px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; color: #111827; white-space: nowrap; }
.logo-icon {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; box-shadow: 0 4px 12px rgba(124,58,237,0.32);
  flex-shrink: 0;
}
.logo-icon svg { width: 20px; height: 20px; fill: currentColor; }
.main-nav { display: flex; gap: 2px; }
.nav-link {
  position: relative; display: inline-flex; align-items: center;
  padding: 10px 14px; font-size: 15px; font-weight: 500;
  color: #374151; border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover { color: var(--primary-dark); background: #FAF5FF; }
.nav-link.active { color: var(--primary-dark); font-weight: 600; }
.nav-link.active::after {
  content: ''; position: absolute; left: 14px; right: 14px; bottom: 5px;
  height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-box {
  display: flex; align-items: center;
  background: #F3F4F6; height: 40px; padding: 0 14px;
  border-radius: var(--radius-pill); width: 220px;
  border: 1px solid transparent;
  transition: all 0.25s;
}
.search-box svg { width: 16px; height: 16px; color: #9CA3AF; margin-right: 8px; flex-shrink: 0; }
.search-box input { border: none; outline: none; background: transparent; width: 100%; font-size: 14px; }
.search-box:focus-within {
  background: #fff; border-color: #E5E7EB;
  box-shadow: 0 0 0 3px rgba(236,72,153,0.28);
}
.menu-toggle { display: none; width: 40px; height: 40px; border-radius: 10px; align-items: center; justify-content: center; color: #374151; transition: all 0.2s; }
.menu-toggle:hover { background: #F3F4F6; }
.menu-toggle svg { width: 22px; height: 22px; }
.mobile-menu {
  display: none; flex-direction: column;
  background: #fff; border-top: 1px solid rgba(0,0,0,0.06);
  padding: 10px 20px 18px;
}
.mobile-menu.open { display: flex; }
.mobile-link {
  padding: 13px 8px; font-size: 15px; font-weight: 500; color: #1F2937;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: all 0.2s;
}
.mobile-link:last-child { border-bottom: none; }
.mobile-link:hover { color: var(--primary-dark); padding-left: 12px; background: #FAF5FF; border-radius: 8px; }

/* ============ Buttons ============ */
.btn-accent {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 24px; border-radius: var(--radius-btn);
  background: linear-gradient(135deg, #EC4899, #F472B6);
  color: #fff; font-weight: 600; font-size: 14px; white-space: nowrap;
  box-shadow: 0 4px 14px rgba(236,72,153,0.35);
  transition: all 0.25s;
}
.btn-accent:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(236,72,153,0.45); filter: brightness(1.06); }
.btn-accent:active { transform: scale(0.97); }
.btn-accent:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(236,72,153,0.45); }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 24px; border-radius: var(--radius-btn);
  background: var(--primary); color: #fff; font-weight: 600; font-size: 14px;
  box-shadow: 0 4px 14px rgba(124,58,237,0.3);
  transition: all 0.25s;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-primary:active { transform: scale(0.97); }
.btn-primary:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(124,58,237,0.4); }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 24px; border-radius: var(--radius-btn);
  border: 1.5px solid rgba(255,255,255,0.35); color: #F9FAFB;
  background: rgba(255,255,255,0.06); font-weight: 600; font-size: 14px;
  transition: all 0.25s;
}
.btn-outline:hover { background: rgba(255,255,255,0.13); border-color: rgba(255,255,255,0.65); transform: translateY(-1px); }
.btn-outline:active { transform: scale(0.97); }
.btn-outline:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(255,255,255,0.4); }
.btn-sm { height: 36px; padding: 0 16px; font-size: 13px; }

/* ============ Hero ============ */
.hero-section {
  position: relative; overflow: hidden;
  background: var(--ink); color: #fff;
  padding: 96px 0 92px;
}
.hero-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-1.jpg'); background-size: cover; background-position: center; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(115deg, rgba(11,7,22,0.96) 0%, rgba(11,7,22,0.88) 55%, rgba(11,7,22,0.80) 100%); }
.hero-glow { position: absolute; top: -140px; left: 28%; width: 560px; height: 560px; background: radial-gradient(circle, rgba(124,58,237,0.3), transparent 70%); filter: blur(50px); }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px); background-size: 54px 54px; mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.9), transparent 80%); }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.18fr 0.82fr; gap: 56px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18);
  font-size: 13px; font-weight: 500; color: #E9D5FF;
  backdrop-filter: blur(8px);
}
.badge-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulseDot 2s infinite; }
@keyframes pulseDot { 0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(236,72,153,0.5); } 50% { opacity: 0.75; box-shadow: 0 0 0 6px rgba(236,72,153,0); } }
.hero-title { font-size: clamp(34px, 4.4vw, 46px); font-weight: 800; line-height: 1.28; letter-spacing: -0.5px; margin: 20px 0 18px; }
.hero-title .grad { background: linear-gradient(90deg, #C4B5FD, #F9A8D4); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-sub { font-size: 16px; line-height: 1.85; color: #D1D5DB; max-width: 560px; margin-bottom: 30px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 26px; }
.hero-trust { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #9CA3AF; }
.hero-trust svg { width: 16px; height: 16px; color: var(--success); flex-shrink: 0; }
.spotlight-card {
  position: relative; border-radius: 18px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.13);
  background: rgba(255,255,255,0.07);
  box-shadow: 0 24px 60px rgba(0,0,0,0.45);
  backdrop-filter: blur(14px);
  transition: transform 0.3s;
}
.spotlight-card:hover { transform: translateY(-4px); }
.spotlight-card img { width: 100%; height: 250px; object-fit: cover; }
.spotlight-float {
  position: absolute; top: 16px; right: 16px;
  background: linear-gradient(135deg, var(--accent), #F472B6);
  color: #fff; padding: 5px 15px; border-radius: var(--radius-pill);
  font-size: 12px; font-weight: 700;
  box-shadow: 0 6px 18px rgba(236,72,153,0.45);
}
.spotlight-body { padding: 20px 22px 24px; }
.spotlight-tag { display: inline-flex; align-items: center; height: 24px; padding: 0 12px; background: rgba(124,58,237,0.2); color: #C4B5FD; border-radius: var(--radius-pill); font-size: 12px; font-weight: 600; }
.spotlight-body h3 { font-size: 18px; font-weight: 700; color: #fff; margin: 12px 0 8px; }
.spotlight-body p { font-size: 13px; color: #C4C4CE; line-height: 1.7; }
.spotlight-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 13px; font-weight: 600; color: #F9A8D4; transition: all 0.2s; }
.spotlight-link:hover { color: #fff; gap: 10px; }
.spotlight-sub { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,0.08); font-size: 12px; color: #8E8E99; }

/* ============ Section Head ============ */
.section-head { text-align: center; max-width: 720px; margin: 0 auto 50px; }
.section-head h2 { font-size: 30px; font-weight: 800; color: #111827; line-height: 1.35; letter-spacing: -0.3px; }
.section-head p { font-size: 16px; color: var(--text-sub); margin-top: 12px; line-height: 1.75; }
.section-head.light h2 { color: #fff; }
.section-head.light p { color: #A1A1AA; }

/* ============ Metrics ============ */
.metrics-section { padding: 90px 0; background: var(--bg-light); }
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.metric-card {
  background: #fff; border: 1px solid var(--border-light);
  border-radius: var(--radius-card); padding: 26px 24px 22px;
  box-shadow: var(--shadow-card);
  transition: all 0.28s;
}
.metric-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(124,58,237,0.18); }
.metric-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.metric-icon {
  width: 42px; height: 42px; border-radius: 11px;
  background: rgba(124,58,237,0.1); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
}
.metric-icon svg { width: 20px; height: 20px; stroke-width: 2; }
.metric-trend { font-size: 12px; color: var(--success); font-weight: 700; background: rgba(16,185,129,0.1); padding: 3px 10px; border-radius: var(--radius-pill); }
.metric-value { font-family: var(--font-number); font-size: 38px; font-weight: 800; color: #111827; line-height: 1.15; font-variant-numeric: tabular-nums; }
.metric-label { font-size: 14px; color: var(--text-sub); margin-top: 6px; }
.metric-bar { height: 4px; background: #F3F4F6; border-radius: 4px; margin-top: 18px; overflow: hidden; }
.metric-bar span { display: block; height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); }

/* ============ Services ============ */
.services-section { padding: 90px 0; background: #fff; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  position: relative; background: #fff;
  border: 1px solid var(--border-light); border-radius: var(--radius-card);
  padding: 28px 26px 24px; box-shadow: var(--shadow-card);
  overflow: hidden; transition: all 0.3s;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: opacity 0.3s;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 48px; height: 48px; border-radius: 13px;
  background: linear-gradient(135deg, rgba(124,58,237,0.12), rgba(236,72,153,0.12));
  color: var(--primary); display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px; transition: all 0.3s;
}
.service-icon svg { width: 24px; height: 24px; stroke-width: 2; }
.service-card:hover .service-icon { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; box-shadow: 0 8px 22px rgba(124,58,237,0.3); }
.service-card h3 { font-size: 17px; font-weight: 700; color: #111827; margin-bottom: 10px; }
.service-card p { font-size: 14px; color: var(--text-sub); line-height: 1.75; }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tag {
  display: inline-flex; align-items: center; height: 26px; padding: 0 12px;
  border-radius: var(--radius-pill); background: rgba(124,58,237,0.08);
  color: var(--primary-dark); font-size: 12px; font-weight: 600;
}
.tag-pink { background: rgba(236,72,153,0.09); color: #DB2777; }
.tag-green { background: rgba(16,185,129,0.1); color: #059669; }

/* ============ Compare ============ */
.compare-section { padding: 90px 0; background: var(--bg-light); }
.compare-wrap { display: grid; grid-template-columns: 1fr auto 1fr; gap: 28px; align-items: start; }
.compare-card {
  background: #fff; border: 1px solid var(--border-light);
  border-radius: 16px; padding: 32px 30px; box-shadow: var(--shadow-card);
}
.compare-card.is-good {
  border: 1px solid rgba(124,58,237,0.18);
  border-top: 4px solid var(--primary);
  box-shadow: 0 14px 36px rgba(124,58,237,0.08);
}
.compare-card h3 { font-size: 20px; font-weight: 800; color: #111827; margin-bottom: 8px; }
.compare-sub { font-size: 13px; color: #9CA3AF; margin-bottom: 18px; }
.compare-item { display: flex; gap: 12px; align-items: flex-start; padding: 11px 0; border-bottom: 1px dashed rgba(0,0,0,0.07); }
.compare-item:last-of-type { border-bottom: none; }
.compare-icon {
  flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-top: 2px;
}
.compare-icon svg { width: 12px; height: 12px; stroke: #fff; stroke-width: 3; }
.compare-icon.ok { background: var(--success); }
.compare-icon.no { background: #D1D5DB; }
.compare-text { font-size: 14px; color: #374151; line-height: 1.65; }
.compare-card.is-bad .compare-text { color: #6B7280; }
.compare-bar-wrap { margin-top: 20px; background: #F3F4F6; border-radius: var(--radius-pill); padding: 4px; }
.compare-bar-label { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.compare-bar-label span { font-size: 12px; font-weight: 700; color: #6B7280; }
.compare-bar { height: 8px; background: rgba(0,0,0,0.05); border-radius: var(--radius-pill); overflow: hidden; }
.compare-bar span { display: block; height: 100%; border-radius: var(--radius-pill); }
.vs-badge {
  display: flex; align-items: center; justify-content: center;
  width: 58px; height: 58px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-weight: 800; font-size: 16px; letter-spacing: 0.5px;
  box-shadow: 0 10px 28px rgba(124,58,237,0.35);
  margin-top: 70px;
}

/* ============ Hot ============ */
.hot-section { padding: 90px 0; background: #fff; }
.hot-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.hot-card {
  background: #fff; border: 1px solid var(--border-light);
  border-radius: var(--radius-card); overflow: hidden;
  transition: all 0.3s; display: flex; flex-direction: column;
}
.hot-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.hot-cover { position: relative; height: 190px; overflow: hidden; flex-shrink: 0; }
.hot-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.45s; }
.hot-card:hover .hot-cover img { transform: scale(1.03); }
.hot-rank {
  position: absolute; top: 14px; left: 14px;
  width: 34px; height: 34px; border-radius: 10px;
  background: rgba(11,7,22,0.72); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 800; font-family: var(--font-number);
  backdrop-filter: blur(6px);
}
.hot-tag {
  position: absolute; top: 14px; right: 14px;
  height: 24px; padding: 0 12px; border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--accent), #F472B6);
  color: #fff; font-size: 12px; font-weight: 600;
  display: inline-flex; align-items: center;
  box-shadow: 0 4px 12px rgba(236,72,153,0.4);
}
.hot-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.hot-body h3 { font-size: 17px; font-weight: 700; color: #111827; line-height: 1.45; margin-bottom: 8px; }
.hot-body p { font-size: 14px; color: var(--text-sub); line-height: 1.7; flex: 1; }
.hot-meta { display: flex; gap: 16px; font-size: 12px; color: #9CA3AF; margin-top: 14px; }
.hot-meta span { display: inline-flex; align-items: center; gap: 5px; }
.hot-meta svg { width: 13px; height: 13px; }

/* ============ News ============ */
.news-section { padding: 90px 0; background: var(--bg-light); }
.news-wrap { display: grid; grid-template-columns: 1.45fr 1fr; gap: 40px; align-items: start; }
.news-list { display: flex; flex-direction: column; gap: 12px; }
.news-item {
  display: flex; align-items: center; gap: 16px;
  background: #fff; border: 1px solid var(--border-light);
  border-radius: 12px; padding: 16px 20px;
  transition: all 0.25s;
}
.news-item:hover { border-color: rgba(124,58,237,0.3); box-shadow: var(--shadow-hover); transform: translateX(4px); }
.news-date {
  flex-shrink: 0; width: 56px; text-align: center;
  background: rgba(124,58,237,0.08); color: var(--primary-dark);
  border-radius: 9px; padding: 7px 4px;
  font-size: 12px; font-weight: 700; line-height: 1.4;
}
.news-title { flex: 1; font-size: 15px; font-weight: 600; color: #1F2937; line-height: 1.55; }
.news-item:hover .news-title { color: var(--primary-dark); }
.news-arrow { color: #D1D5DB; flex-shrink: 0; transition: all 0.25s; }
.news-item:hover .news-arrow { color: var(--accent); transform: translateX(4px); }
.news-side { display: flex; flex-direction: column; gap: 20px; }
.side-card { background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius-card); padding: 26px 24px; }
.side-card h3 { font-size: 16px; font-weight: 700; color: #111827; margin-bottom: 16px; position: relative; padding-left: 12px; }
.side-card h3::before { content: ''; position: absolute; left: 0; top: 4px; bottom: 4px; width: 3px; border-radius: 3px; background: linear-gradient(180deg, var(--primary), var(--accent)); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a {
  display: inline-flex; align-items: center; height: 30px; padding: 0 14px;
  border-radius: var(--radius-pill); background: #F3F4F6;
  font-size: 13px; font-weight: 500; color: #374151;
  transition: all 0.2s;
}
.tag-cloud a:hover { background: var(--primary); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(124,58,237,0.3); }
.side-dark { background: var(--ink); border: none; position: relative; overflow: hidden; }
.side-dark::after { content: ''; position: absolute; top: -60px; right: -60px; width: 140px; height: 140px; background: radial-gradient(circle, rgba(124,58,237,0.35), transparent 70%); }
.side-dark h3 { color: #fff; }
.side-dark h3::before { background: linear-gradient(180deg, var(--accent), var(--primary)); }
.side-dark p { font-size: 13px; color: #A1A1AA; line-height: 1.8; position: relative; z-index: 1; }
.side-dark a {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 14px; font-size: 13px; font-weight: 600; color: #F9A8D4;
  transition: all 0.2s; position: relative; z-index: 1;
}
.side-dark a:hover { color: #fff; gap: 10px; }

/* ============ Guide ============ */
.guide-section { padding: 90px 0; background: #fff; position: relative; overflow: hidden; }
.guide-section::before {
  content: ''; position: absolute; bottom: -180px; left: 50%; transform: translateX(-50%);
  width: 600px; height: 360px; background: radial-gradient(ellipse, rgba(124,58,237,0.08), transparent 70%);
}
.guide-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; }
.guide-step {
  background: #fff; border: 1px solid var(--border-light);
  border-radius: var(--radius-card); padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: all 0.28s;
}
.guide-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(124,58,237,0.2); }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-weight: 800; font-size: 16px; font-family: var(--font-number);
  box-shadow: 0 8px 20px rgba(124,58,237,0.28);
  margin-bottom: 18px;
}
.guide-step h3 { font-size: 17px; font-weight: 700; color: #111827; margin-bottom: 10px; }
.guide-step p { font-size: 14px; color: var(--text-sub); line-height: 1.75; }

/* ============ FAQ ============ */
.faq-section { padding: 90px 0; background: var(--bg-light); }
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: #fff; border: 1px solid var(--border-light);
  border-radius: 12px; overflow: hidden;
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
}
.faq-item[open] { border-color: var(--primary); background: #FCF9FF; box-shadow: 0 8px 24px rgba(124,58,237,0.08); }
.faq-item summary {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; padding: 18px 22px; cursor: pointer;
  font-size: 15px; font-weight: 600; color: #1F2937;
  list-style: none; transition: background 0.2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: #FAF5FF; }
.faq-item summary:focus-visible { outline: none; box-shadow: inset 0 0 0 3px rgba(236,72,153,0.35); }
.faq-icon {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%;
  background: rgba(124,58,237,0.12); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; line-height: 1;
  transition: all 0.3s;
}
.faq-item[open] .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-body { padding: 0 22px 20px 22px; font-size: 14px; color: #4B5563; line-height: 1.8; border-top: 1px dashed rgba(0,0,0,0.06); margin: 0 10px; }

/* ============ CTA ============ */
.cta-section { position: relative; padding: 90px 0; background: var(--ink); color: #fff; overflow: hidden; }
.cta-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-5.jpg'); background-size: cover; background-position: center; }
.cta-overlay { position: absolute; inset: 0; background: rgba(11,7,22,0.92); }
.cta-glow { position: absolute; bottom: -100px; left: -80px; width: 420px; height: 420px; background: radial-gradient(circle, rgba(236,72,153,0.2), transparent 70%); filter: blur(40px); }
.cta-inner { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.cta-left h2 { font-size: 30px; font-weight: 800; line-height: 1.4; margin-bottom: 16px; }
.cta-left > p { font-size: 15px; color: #D1D5DB; line-height: 1.8; margin-bottom: 24px; }
.cta-benefits { display: flex; flex-direction: column; gap: 12px; }
.cta-benefit { display: flex; gap: 12px; align-items: center; font-size: 14px; color: #F3F4F6; }
.cta-benefit svg { flex-shrink: 0; width: 18px; height: 18px; color: var(--accent); }
.cta-form-card {
  background: #fff; border-radius: 16px; padding: 30px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}
.form-group { margin-bottom: 14px; }
.form-input {
  width: 100%; height: 44px;
  border: 1px solid #E5E7EB; border-radius: 10px;
  padding: 0 14px; font-size: 14px; color: var(--text-main);
  background: #F9FAFB; transition: all 0.2s;
}
.form-input::placeholder { color: #9CA3AF; }
.form-input:focus {
  border-color: var(--primary); background: #fff;
  box-shadow: 0 0 0 3px rgba(124,58,237,0.18);
  outline: none;
}
textarea.form-input { height: auto; padding: 12px 14px; resize: vertical; min-height: 84px; }
select.form-input {
  appearance: none; -webkit-appearance: none; cursor: pointer; padding-right: 38px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
}
.btn-submit {
  width: 100%; height: 46px; border: none; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #F472B6);
  color: #fff; font-size: 14px; font-weight: 600;
  box-shadow: 0 6px 20px rgba(236,72,153,0.4);
  transition: all 0.25s;
}
.btn-submit:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(236,72,153,0.5); filter: brightness(1.06); }
.btn-submit:active { transform: scale(0.98); }
.btn-submit:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(236,72,153,0.5); }
.form-tip { font-size: 12px; color: #9CA3AF; text-align: center; margin-top: 14px; line-height: 1.6; }
.form-reply { text-align: center; font-size: 12px; color: var(--success); margin-bottom: 10px; font-weight: 600; }

/* ============ Footer ============ */
.site-footer { background: var(--ink); color: #A1A1AA; padding-top: 70px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 44px; padding-bottom: 46px; }
.footer-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; color: #F9FAFB; }
.footer-desc { font-size: 14px; line-height: 1.85; margin-top: 16px; color: #A1A1AA; max-width: 280px; }
.social-row { display: flex; gap: 10px; margin-top: 20px; }
.social-btn {
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: #D1D5DB; transition: all 0.25s;
}
.social-btn svg { width: 17px; height: 17px; }
.social-btn:hover { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; border-color: transparent; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(124,58,237,0.35); }
.footer-col h3 { font-size: 15px; font-weight: 700; color: #F9FAFB; margin-bottom: 18px; position: relative; }
.footer-link, .footer-text { display: block; font-size: 14px; color: #A1A1AA; padding: 5px 0; transition: all 0.2s; }
a.footer-link:hover { color: #F9A8D4; padding-left: 5px; }
.footer-text { padding: 5px 0; line-height: 1.7; }
.btn-footer {
  display: inline-flex; align-items: center; justify-content: center;
  height: 38px; padding: 0 22px; margin-top: 14px;
  border-radius: var(--radius-btn); border: 1px solid rgba(255,255,255,0.2);
  color: #fff; font-size: 13px; font-weight: 600;
  transition: all 0.25s;
}
.btn-footer:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-1px); box-shadow: 0 6px 18px rgba(236,72,153,0.35); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.09);
  padding: 20px 0; font-size: 12px; color: #71717A;
}
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .compare-wrap { grid-template-columns: 1fr; }
  .vs-badge { margin: 0 auto; transform: rotate(90deg); }
  .hot-grid { grid-template-columns: repeat(2, 1fr); }
  .guide-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .header-actions .search-box { width: 170px; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .header-inner { height: 64px; }
  .header-actions .search-box { width: 40px; padding: 0; justify-content: center; }
  .header-actions .search-box input { display: none; }
  .header-actions .search-box svg { margin: 0; }
  .btn-accent.header-cta { padding: 0 14px; font-size: 13px; }
  .hero-section { padding: 64px 0 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-sub { font-size: 15px; }
  .spotlight-card img { height: 220px; }
  .section-head { margin-bottom: 36px; }
  .section-head h2 { font-size: 25px; }
  .services-grid { grid-template-columns: 1fr; }
  .news-wrap { grid-template-columns: 1fr; gap: 28px; }
  .guide-steps { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; gap: 40px; }
  .cta-form-card { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-title { font-size: 31px; }
  .metrics-section, .services-section, .compare-section, .hot-section, .news-section, .guide-section, .faq-section, .cta-section { padding: 56px 0; }
}

@media (max-width: 520px) {
  .metrics-grid { grid-template-columns: 1fr; }
  .hot-grid { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn-accent, .hero-ctas .btn-outline { width: 100%; }
  .compare-card { padding: 24px 20px; }
  .news-item { padding: 14px 16px; gap: 10px; flex-wrap: wrap; }
  .news-title { font-size: 14px; }
  .btn-accent.header-cta { font-size: 12px; padding: 0 12px; }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #7C3AED;
            --primary-dark: #6D28D9;
            --primary-light: #A78BFA;
            --accent: #EC4899;
            --accent-light: #F9A8D4;
            --success: #10B981;
            --ink: #0B0716;
            --ink-2: #16112B;
            --bg-light: #F8FAFC;
            --card-bg: #FFFFFF;
            --text-main: #1F2937;
            --text-sub: #6B7280;
            --text-on-dark: #F9FAFB;
            --border-light: rgba(0, 0, 0, 0.08);
            --border-dark: rgba(255, 255, 255, 0.10);
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-pill: 9999px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 24px rgba(0, 0, 0, 0.10);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-number: ui-sans-serif, "DIN Alternate", "Roboto", sans-serif;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::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);
            color: var(--text-main);
            background: #fff;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s, opacity 0.2s;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 14px;
            color: var(--text-main);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== Header / 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 18px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 19px;
            color: #111827;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 4px 12px rgba(124, 58, 237, 0.32);
            flex-shrink: 0;
        }
        .logo-icon svg {
            width: 20px;
            height: 20px;
            fill: currentColor;
        }
        .main-nav {
            display: flex;
            gap: 2px;
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: #374151;
            border-radius: 8px;
            transition: color 0.2s, background 0.2s;
        }
        .nav-link:hover {
            color: var(--primary-dark);
            background: #FAF5FF;
        }
        .nav-link.active {
            color: var(--primary-dark);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 5px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: #F3F4F6;
            height: 40px;
            padding: 0 14px;
            border-radius: var(--radius-pill);
            width: 220px;
            border: 1px solid transparent;
            transition: all 0.25s;
        }
        .search-box svg {
            width: 16px;
            height: 16px;
            color: #9CA3AF;
            margin-right: 8px;
            flex-shrink: 0;
        }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            width: 100%;
            font-size: 14px;
        }
        .search-box:focus-within {
            background: #fff;
            border-color: #E5E7EB;
            box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.28);
        }
        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: #374151;
            transition: all 0.2s;
        }
        .menu-toggle:hover {
            background: #F3F4F6;
        }
        .menu-toggle svg {
            width: 22px;
            height: 22px;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #fff;
            border-top: 1px solid rgba(0, 0, 0, 0.06);
            padding: 10px 20px 18px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-link {
            padding: 13px 8px;
            font-size: 15px;
            font-weight: 500;
            color: #1F2937;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.2s;
        }
        .mobile-link:last-child {
            border-bottom: none;
        }
        .mobile-link:hover {
            color: var(--primary-dark);
            padding-left: 12px;
            background: #FAF5FF;
            border-radius: 8px;
        }

        /* ========== 按钮 ========== */
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, #EC4899, #F472B6);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(236, 72, 153, 0.35);
            transition: all 0.25s;
        }
        .btn-accent:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 22px rgba(236, 72, 153, 0.45);
            filter: brightness(1.06);
        }
        .btn-accent:active {
            transform: scale(0.97);
        }
        .btn-accent:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.45);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
            transition: all 0.25s;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            color: #F9FAFB;
            background: rgba(255, 255, 255, 0.06);
            font-weight: 600;
            font-size: 14px;
            transition: all 0.25s;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.13);
            border-color: rgba(255, 255, 255, 0.65);
            transform: translateY(-1px);
        }
        .btn-outline:active {
            transform: scale(0.97);
        }
        .btn-outline:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.4);
        }
        .btn-sm {
            height: 36px;
            padding: 0 16px;
            font-size: 13px;
        }

        /* ========== 分类页小 Hero ========== */
        .category-hero {
            position: relative;
            overflow: hidden;
            background: var(--ink);
            color: #fff;
            padding: 56px 0 58px;
        }
        .category-hero .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
        }
        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(11, 7, 22, 0.94) 20%, rgba(11, 7, 22, 0.82) 55%, rgba(124, 58, 237, 0.35) 100%);
        }
        .category-hero .hero-glow {
            position: absolute;
            width: 480px;
            height: 480px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.28) 0%, transparent 70%);
            right: -120px;
            top: -160px;
            pointer-events: none;
        }
        .category-hero-content {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--accent-light);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }
        .category-hero h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .category-hero h1 span {
            background: linear-gradient(135deg, #A78BFA, #F472B6);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .category-hero-desc {
            font-size: 16px;
            color: #D1D5DB;
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .category-hero-search {
            display: flex;
            align-items: center;
            max-width: 480px;
            height: 48px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-pill);
            padding: 0 8px 0 18px;
            backdrop-filter: blur(6px);
            transition: all 0.25s;
        }
        .category-hero-search:focus-within {
            border-color: rgba(236, 72, 153, 0.7);
            background: rgba(255, 255, 255, 0.16);
            box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.25);
        }
        .category-hero-search svg {
            width: 17px;
            height: 17px;
            color: rgba(255, 255, 255, 0.55);
            margin-right: 10px;
            flex-shrink: 0;
        }
        .category-hero-search input {
            flex: 1;
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            font-size: 14px;
        }
        .category-hero-search input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .category-hero-search .hero-search-btn {
            height: 36px;
            padding: 0 20px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #EC4899, #F472B6);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: all 0.2s;
        }
        .category-hero-search .hero-search-btn:hover {
            filter: brightness(1.08);
            transform: translateY(-1px);
        }

        /* ========== 快速数据条 ========== */
        .quick-stats {
            background: #fff;
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            padding: 28px 0;
        }
        .quick-stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .quick-stat-item {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .quick-stat-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .quick-stat-icon svg {
            width: 20px;
            height: 20px;
        }
        .quick-stat-num {
            font-family: var(--font-number);
            font-size: 24px;
            font-weight: 800;
            color: #111827;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }
        .quick-stat-label {
            font-size: 13px;
            color: var(--text-sub);
            margin-top: 2px;
        }

        /* ========== 分类主体布局 ========== */
        .category-main {
            background: #F8FAFC;
            padding: 48px 0 72px;
        }
        .category-layout {
            display: grid;
            grid-template-columns: 268px 1fr;
            gap: 32px;
            align-items: start;
        }

        /* 侧边栏 */
        .category-sidebar {
            position: sticky;
            top: 92px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid rgba(0, 0, 0, 0.06);
            box-shadow: var(--shadow-card);
            padding: 22px 20px;
        }
        .sidebar-card-title {
            font-size: 15px;
            font-weight: 700;
            color: #111827;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card-title svg {
            width: 16px;
            height: 16px;
            color: var(--primary);
        }
        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 9px 12px;
            border-radius: 9px;
            font-size: 14px;
            font-weight: 500;
            color: #374151;
            transition: all 0.2s;
        }
        .sidebar-link:hover {
            background: #FAF5FF;
            color: var(--primary-dark);
        }
        .sidebar-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 3px 10px rgba(124, 58, 237, 0.35);
        }
        .sidebar-link .count {
            font-family: var(--font-number);
            font-size: 12px;
            background: rgba(0, 0, 0, 0.05);
            padding: 1px 8px;
            border-radius: var(--radius-pill);
            font-variant-numeric: tabular-nums;
        }
        .sidebar-link.active .count {
            background: rgba(255, 255, 255, 0.22);
        }
        .sidebar-recommend {
            background: linear-gradient(160deg, #1E1B4B, #0B0716);
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            border: none;
        }
        .sidebar-recommend img {
            width: 100%;
            height: 110px;
            object-fit: cover;
            opacity: 0.6;
        }
        .sidebar-recommend-content {
            padding: 14px 16px 18px;
            position: relative;
        }
        .sidebar-recommend-content h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .sidebar-recommend-content p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .sidebar-recommend-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: #F9A8D4;
            transition: all 0.2s;
        }
        .sidebar-recommend-btn:hover {
            color: #F472B6;
            gap: 10px;
        }

        /* 移动端分类标签条 */
        .mobile-categories {
            display: none;
            gap: 8px;
            overflow-x: auto;
            padding-bottom: 4px;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }
        .mobile-categories::-webkit-scrollbar {
            display: none;
        }
        .mobile-cat {
            flex-shrink: 0;
            padding: 7px 16px;
            border-radius: var(--radius-pill);
            background: #fff;
            border: 1px solid rgba(0, 0, 0, 0.08);
            font-size: 13px;
            font-weight: 500;
            color: #374151;
            transition: all 0.2s;
        }
        .mobile-cat:hover {
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .mobile-cat.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        /* 右侧内容区 */
        .category-content {
            min-width: 0;
        }
        .category-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: #fff;
            border: 1px solid rgba(0, 0, 0, 0.06);
            border-radius: var(--radius-card);
            padding: 14px 18px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .toolbar-count {
            font-size: 14px;
            color: var(--text-sub);
        }
        .toolbar-count strong {
            font-family: var(--font-number);
            font-size: 18px;
            color: var(--primary-dark);
            font-variant-numeric: tabular-nums;
            margin-right: 2px;
        }
        .toolbar-sort {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .toolbar-sort label {
            font-size: 13px;
            color: var(--text-sub);
        }
        .sort-select {
            height: 38px;
            padding: 0 36px 0 14px;
            border-radius: 10px;
            border: 1px solid #E5E7EB;
            background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 13px center;
            appearance: none;
            -webkit-appearance: none;
            font-size: 14px;
            color: var(--text-main);
            cursor: pointer;
            outline: none;
            transition: all 0.2s;
        }
        .sort-select:hover {
            border-color: var(--primary-light);
        }
        .sort-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.22);
        }

        /* 内容卡片网格 */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .video-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid rgba(0, 0, 0, 0.06);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s;
            display: flex;
            flex-direction: column;
        }
        .video-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(124, 58, 237, 0.18);
        }
        .video-card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #1F2937;
        }
        .video-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .video-card:hover .video-card-cover img {
            transform: scale(1.04);
        }
        .video-card-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0.45) 100%);
            pointer-events: none;
        }
        .video-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            height: 24px;
            padding: 0 12px;
            border-radius: var(--radius-pill);
            background: rgba(236, 72, 153, 0.92);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            display: flex;
            align-items: center;
            backdrop-filter: blur(4px);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }
        .video-card-body {
            padding: 18px 20px 16px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .video-card-title {
            font-size: 16px;
            font-weight: 700;
            color: #111827;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
            transition: color 0.2s;
        }
        .video-card:hover .video-card-title {
            color: var(--primary-dark);
        }
        .video-card-summary {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
            flex: 1;
        }
        .video-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(0, 0, 0, 0.05);
            padding-top: 12px;
        }
        .video-meta-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .video-meta-item {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            color: #9CA3AF;
            font-variant-numeric: tabular-nums;
        }
        .video-meta-item svg {
            width: 13px;
            height: 13px;
        }
        .video-detail-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            transition: all 0.2s;
        }
        .video-detail-link:hover {
            color: var(--accent);
            gap: 7px;
        }
        .video-detail-link svg {
            width: 13px;
            height: 13px;
        }

        /* 分页 */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 6px;
            margin-top: 44px;
        }
        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 10px;
            border: 1px solid rgba(0, 0, 0, 0.09);
            background: #fff;
            font-size: 14px;
            font-weight: 500;
            color: #374151;
            transition: all 0.2s;
        }
        .page-btn:hover:not(.active):not(.disabled) {
            border-color: var(--primary);
            color: var(--primary-dark);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.12);
        }
        .page-btn.active {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(236, 72, 153, 0.3);
        }
        .page-btn.disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-light);
            padding: 80px 0;
        }
        .faq-header {
            text-align: center;
            max-width: 600px;
            margin: 0 auto 44px;
        }
        .faq-header h2 {
            font-size: 30px;
            font-weight: 800;
            color: #111827;
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .faq-header p {
            font-size: 15px;
            color: var(--text-sub);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid rgba(0, 0, 0, 0.07);
            border-radius: 12px;
            overflow: hidden;
            transition: border-color 0.25s, box-shadow 0.25s;
        }
        .faq-item[open] {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: #111827;
            transition: background 0.2s;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            background: #FAF5FF;
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #F3F0FF;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform 0.3s, background 0.3s;
        }
        .faq-icon svg {
            width: 14px;
            height: 14px;
        }
        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }
        .faq-answer {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            overflow: hidden;
            background: var(--ink);
            color: #fff;
            padding: 80px 0;
        }
        .cta-section .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-5.jpg');
            background-size: cover;
            background-position: center;
        }
        .cta-section .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(11, 7, 22, 0.95) 30%, rgba(11, 7, 22, 0.78) 75%, rgba(124, 58, 237, 0.4) 100%);
        }
        .cta-section .cta-glow {
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(236, 72, 153, 0.22) 0%, transparent 70%);
            left: -100px;
            bottom: -180px;
            pointer-events: none;
        }
        .cta-card {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-card h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 14px;
        }
        .cta-card h2 span {
            background: linear-gradient(135deg, #A78BFA, #F472B6);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .cta-card p {
            font-size: 16px;
            color: #D1D5DB;
            margin-bottom: 30px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0B0716;
            color: #9CA3AF;
            padding: 64px 0 0;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 10px;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            color: #8B8B9E;
            margin-bottom: 18px;
            max-width: 280px;
        }
        .social-row {
            display: flex;
            gap: 8px;
        }
        .social-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #C4C4D4;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.25s;
        }
        .social-btn svg {
            width: 16px;
            height: 16px;
        }
        .social-btn:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(236, 72, 153, 0.3);
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-link {
            display: block;
            padding: 5px 0;
            font-size: 13px;
            color: #8B8B9E;
            transition: color 0.2s, padding-left 0.2s;
        }
        .footer-link:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-text {
            font-size: 13px;
            padding: 5px 0;
            color: #8B8B9E;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12.5px;
            color: #6B6B80;
        }
        .footer-bottom a {
            color: #8B8B9E;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1200px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
            .category-layout {
                grid-template-columns: 240px 1fr;
                gap: 24px;
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 1023px) {
            .main-nav {
                display: none;
            }
            .search-box {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .header-actions .btn-accent {
                height: 38px;
                padding: 0 16px;
                font-size: 13px;
            }
            .category-layout {
                grid-template-columns: 1fr;
            }
            .category-sidebar {
                display: none;
            }
            .mobile-categories {
                display: flex;
                margin-bottom: 20px;
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .quick-stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 767px) {
            .hero-section {
                padding: 64px 0 56px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-inner {
                height: 64px;
                gap: 12px;
            }
            .logo {
                font-size: 16px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
            }
            .header-actions .btn-accent {
                display: none;
            }
            .category-hero {
                padding: 40px 0 42px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero-desc {
                font-size: 14px;
            }
            .category-hero-search {
                height: 44px;
            }
            .category-hero-search .hero-search-btn {
                padding: 0 14px;
                font-size: 12px;
            }
            .quick-stats {
                padding: 22px 0;
            }
            .quick-stats-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .quick-stat-item {
                padding: 4px 0;
            }
            .category-main {
                padding: 32px 0 56px;
            }
            .category-toolbar {
                padding: 12px 14px;
            }
            .toolbar-count {
                font-size: 13px;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .video-card-body {
                padding: 15px 16px 14px;
            }
            .pagination {
                gap: 4px;
                flex-wrap: wrap;
            }
            .page-btn {
                min-width: 36px;
                height: 36px;
                padding: 0 10px;
                font-size: 13px;
            }
            .faq-section {
                padding: 56px 0;
            }
            .faq-header h2 {
                font-size: 24px;
            }
            .faq-item summary {
                padding: 15px 16px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 16px 16px;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-card h2 {
                font-size: 24px;
            }
            .cta-card p {
                font-size: 14px;
            }
            .cta-buttons .btn-accent,
            .cta-buttons .btn-outline {
                width: 100%;
                max-width: 260px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 20px;
                padding-bottom: 36px;
            }
            .footer-about {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
            .toolbar-sort label {
                display: none;
            }
            .toolbar-sort {
                margin-left: auto;
            }
        }