:root {
  --legal-bg: #050816;
  --legal-bg-soft: #091224;
  --legal-surface: rgba(9, 18, 36, 0.88);
  --legal-surface-strong: rgba(8, 16, 32, 0.96);
  --legal-line: rgba(110, 201, 255, 0.18);
  --legal-line-strong: rgba(83, 220, 255, 0.34);
  --legal-text: #eef5ff;
  --legal-muted: #a8b8d6;
  --legal-dim: #7486a7;
  --legal-cyan: #53dcff;
  --legal-mint: #38f1c2;
  --legal-violet: #8b72ff;
  --legal-radius: 26px;
  --legal-font: 'Noto Sans TC', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  color: var(--legal-text);
  background:
    radial-gradient(circle at 12% 4%, rgba(83, 220, 255, 0.16), transparent 30%),
    radial-gradient(circle at 88% 10%, rgba(139, 114, 255, 0.18), transparent 30%),
    radial-gradient(circle at 50% 100%, rgba(56, 241, 194, 0.09), transparent 34%),
    linear-gradient(180deg, #07101f 0%, #050816 58%, #03050d 100%);
  font-family: var(--legal-font);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(110, 201, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(110, 201, 255, 0.035) 1px, transparent 1px);
  background-size: 120px 120px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.72), transparent 82%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,.72), transparent 82%);
}
a { color: var(--legal-cyan); text-decoration: none; }
a:hover { color: #b9f5ff; }
img { max-width: 100%; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 72px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: rgba(5, 10, 20, 0.88);
  border-bottom: 1px solid rgba(110, 201, 255, 0.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.site-header::after {
  content: '';
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(83,220,255,.55), rgba(139,114,255,.55), transparent);
}
.site-header .brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--legal-text);
  font-size: 18px;
  font-weight: 900;
  letter-spacing: .02em;
}
.site-header .brand img {
  height: 44px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 10px 24px rgba(0,0,0,.35));
}
.site-header .back-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 16px;
  color: var(--legal-text);
  border: 1px solid rgba(110, 201, 255, 0.18);
  border-radius: 999px;
  background: rgba(255,255,255,.035);
  font-size: 14px;
  font-weight: 700;
  transition: .2s ease;
}
.site-header .back-btn:hover {
  color: #04111d;
  background: linear-gradient(135deg, var(--legal-cyan), var(--legal-mint));
  border-color: transparent;
  transform: translateY(-1px);
}
.hero {
  position: relative;
  overflow: hidden;
  padding: 72px 24px 58px;
  text-align: center;
  background:
    radial-gradient(circle at 50% 12%, rgba(83,220,255,.15), transparent 38%),
    linear-gradient(180deg, rgba(9,18,36,.92), rgba(5,8,22,.62));
  border-bottom: 1px solid rgba(110,201,255,.14);
}
.hero::before {
  content: '';
  position: absolute;
  left: 50%;
  top: -90px;
  width: 520px;
  height: 220px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: rgba(83,220,255,.10);
  filter: blur(42px);
  pointer-events: none;
}
.hero h1 {
  position: relative;
  margin-bottom: 10px;
  color: transparent;
  background: linear-gradient(100deg, #fff 0%, var(--legal-cyan) 48%, var(--legal-mint) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  font-size: clamp(2.15rem, 5vw, 4rem);
  line-height: 1.15;
  letter-spacing: -.045em;
}
.hero p {
  position: relative;
  color: var(--legal-muted);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.hero .ssl-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  padding: 7px 13px;
  color: #baf7e5;
  background: rgba(56,241,194,.08);
  border: 1px solid rgba(56,241,194,.22);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}
.content-wrap {
  width: min(980px, calc(100% - 40px));
  margin: 0 auto;
  padding: 42px 0 76px;
}
.policy-card {
  position: relative;
  overflow: hidden;
  padding: 42px 44px;
  border: 1px solid var(--legal-line);
  border-radius: var(--legal-radius);
  background: linear-gradient(150deg, rgba(12, 25, 47, 0.94), rgba(6, 13, 27, 0.94));
  box-shadow: 0 28px 80px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.05);
}
.policy-card::before {
  content: '';
  position: absolute;
  right: -100px;
  top: -100px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(83,220,255,.13), transparent 68%);
  pointer-events: none;
}
.updated-date {
  position: relative;
  margin-bottom: 30px;
  padding: 10px 14px;
  color: var(--legal-dim);
  border: 1px solid rgba(110,201,255,.12);
  border-radius: 12px;
  background: rgba(255,255,255,.025);
  font-size: 13px;
  text-align: right;
}
.section {
  position: relative;
  margin-bottom: 34px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(110,201,255,.10);
}
.section:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: 0; }
.section-title {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 16px;
  color: #f4f8ff;
  font-size: 18px;
  font-weight: 900;
  line-height: 1.45;
}
.section-title .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  color: #04111d;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--legal-cyan), var(--legal-mint));
  box-shadow: 0 8px 18px rgba(83,220,255,.20);
  font-size: 12px;
  font-weight: 900;
}
.policy-card p,
.policy-card li {
  color: var(--legal-muted);
  font-size: 15px;
  line-height: 1.95;
}
.policy-card p { margin-bottom: 12px; }
.policy-card p:last-child { margin-bottom: 0; }
.policy-card strong { color: var(--legal-text); }
.policy-card ol,
.policy-card ul {
  margin: 10px 0 14px;
  padding-left: 24px;
}
.policy-card li { margin-bottom: 7px; }
.policy-card li::marker { color: var(--legal-cyan); }
.policy-card a {
  color: var(--legal-cyan);
  border-bottom: 1px solid rgba(83,220,255,.35);
}
.policy-card a:hover {
  color: var(--legal-mint);
  border-bottom-color: rgba(56,241,194,.65);
}
.highlight-box {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-top: 14px;
  padding: 16px 18px;
  color: #bbf7d0 !important;
  border: 1px solid rgba(56,241,194,.24);
  border-radius: 14px;
  background: rgba(56,241,194,.08) !important;
  font-size: 14px;
}
.policy-card p[style*="DC2626"] {
  color: #ffd2dd !important;
  border: 1px solid rgba(251,113,133,.28) !important;
  background: rgba(251,113,133,.10) !important;
  border-radius: 14px !important;
}
.site-footer {
  padding: 30px 20px 42px;
  color: var(--legal-dim);
  border-top: 1px solid rgba(110,201,255,.12);
  text-align: center;
  font-size: 13px;
}
.site-footer a { color: var(--legal-muted); }
.site-footer a:hover { color: var(--legal-cyan); }
@media (max-width: 768px) {
  .site-header {
    min-height: 64px;
    padding: 10px 14px;
    gap: 10px;
  }
  .site-header .brand { gap: 9px; font-size: 15px; }
  .site-header .brand img { height: 36px; }
  .site-header .back-btn {
    padding: 8px 12px;
    font-size: 12px;
    white-space: nowrap;
  }
  .hero { padding: 54px 18px 42px; }
  .hero h1 { letter-spacing: -.035em; }
  .hero p { font-size: 12px; letter-spacing: .13em; }
  .content-wrap {
    width: min(100% - 24px, 980px);
    padding: 24px 0 54px;
  }
  .policy-card {
    padding: 24px 19px;
    border-radius: 20px;
  }
  .updated-date {
    margin-bottom: 22px;
    text-align: left;
  }
  .section { margin-bottom: 26px; padding-bottom: 24px; }
  .section-title { font-size: 16px; gap: 9px; }
  .section-title .num { width: 27px; height: 27px; }
  .policy-card p,
  .policy-card li { font-size: 14.5px; line-height: 1.88; }
}
@media (max-width: 390px) {
  .site-header .brand span { display: none; }
  .site-header .brand::after { content: 'AnnAI'; font-weight: 900; }
  .content-wrap { width: calc(100% - 18px); }
  .policy-card { padding: 21px 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}