/* 协议 / 隐私页 — 与官网 index 同宽、同色系与背景层次 */

:root {
  --bg-deep: #ebe4dc;
  --bg-warm: #f2ebe4;
  --text: #2a221c;
  --text-soft: #4d4036;
  --muted: #7d6c62;
  --line: rgba(100, 75, 58, 0.12);
  --accent: #c47a30;
  --accent-deep: #a86424;
  --legal-max: min(1540px, 100%);
  --legal-pad-x: 28px;
  --fs-desc: 1.125rem;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --radius-md: 14px;
}

@media (prefers-reduced-motion: reduce) {
  body.legal::before {
    animation: none !important;
  }
}

@media (prefers-reduced-motion: no-preference) {
  body.legal::before {
    animation: legal-bg-drift 80s linear infinite;
  }
}

@keyframes legal-bg-drift {
  to {
    background-position: 0% 0%, 0% 0%, 0% 0%, 0% 0%, 72px 72px, -72px 72px;
  }
}

* {
  box-sizing: border-box;
}

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

body.legal {
  margin: 0;
  min-height: 100dvh;
  position: relative;
  isolation: isolate;
  font-family: var(--font);
  font-size: var(--fs-desc);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

body.legal::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 100% 75% at 50% 0%, rgba(255, 220, 190, 0.45), transparent 58%),
    radial-gradient(ellipse 55% 45% at 100% 40%, rgba(255, 210, 195, 0.22), transparent 50%),
    radial-gradient(ellipse 50% 40% at 0% 85%, rgba(255, 235, 200, 0.2), transparent 48%),
    linear-gradient(180deg, #f4ece4 0%, var(--bg-deep) 78%),
    linear-gradient(90deg, rgba(160, 120, 90, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(160, 120, 90, 0.05) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 72px 72px, 72px 72px;
}

body.legal::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.legal-header,
.legal-main,
.legal-footer {
  max-width: var(--legal-max);
  margin: 0 auto;
  padding-left: var(--legal-pad-x);
  padding-right: var(--legal-pad-x);
}

.legal-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding-top: max(14px, env(safe-area-inset-top, 0px));
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 252, 248, 0.97) 0%, rgba(245, 238, 230, 0.88) 100%);
  backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: 0 8px 28px rgba(50, 40, 32, 0.06);
}

.legal-back {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 4px 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-deep);
  text-decoration: none;
  transition: color 0.2s ease;
}

.legal-back:hover {
  color: #7a4a18;
  text-decoration: underline;
}

.legal-back:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.legal-header h1 {
  font-size: clamp(1.55rem, 2.35vw, 2rem);
  margin: 12px 0 6px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.legal-header .meta {
  color: var(--muted);
  font-size: var(--fs-desc);
  margin: 0;
}

.legal-main {
  padding: 22px var(--legal-pad-x) 44px;
  background: rgba(255, 252, 248, 0.35);
}

.legal-main section {
  margin-bottom: 20px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 252, 248, 0.82);
  box-shadow: 0 4px 18px rgba(60, 44, 32, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.legal-main h2 {
  font-size: 1.2rem;
  margin: 0 0 10px;
  font-weight: 700;
  color: var(--accent-deep);
}

.legal-main p {
  margin: 0 0 10px;
  color: var(--text-soft);
  word-break: break-word;
}

.legal-main p:last-child {
  margin-bottom: 0;
}

.legal-main ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-soft);
}

.legal-main ul li {
  margin-bottom: 8px;
}

.legal-footer {
  padding: 20px var(--legal-pad-x) 32px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-desc);
  color: var(--muted);
  background: linear-gradient(0deg, rgba(248, 242, 236, 0.98) 0%, rgba(255, 252, 248, 0.92) 100%);
  box-shadow: 0 -6px 20px rgba(50, 40, 32, 0.05);
}

.legal-footer a {
  color: var(--accent-deep);
  text-decoration: none;
  transition: color 0.2s ease;
}

.legal-footer a:hover {
  color: #7a4a18;
  text-decoration: underline;
}

.legal-footer a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.legal-footer-beian,
.legal-footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  word-break: break-word;
}

.legal-footer-sep {
  color: var(--muted);
  user-select: none;
}

@media (max-width: 960px) {
  :root {
    --legal-pad-x: 16px;
    --fs-desc: 1rem;
  }

  .legal-header {
    padding-bottom: 14px;
  }

  .legal-header h1 {
    font-size: 1.35rem;
    margin-top: 4px;
  }

  .legal-header .meta {
    font-size: 0.88rem;
    line-height: 1.5;
  }

  .legal-main {
    padding-top: 16px;
    padding-bottom: 28px;
  }

  .legal-main section {
    margin-bottom: 14px;
    padding: 12px 14px;
  }

  .legal-main h2 {
    font-size: 1.05rem;
  }

  .legal-footer {
    padding-bottom: max(24px, env(safe-area-inset-bottom, 0px));
    font-size: 0.92rem;
  }

  .legal-footer-beian {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .legal-footer-beian .legal-footer-sep {
    display: none;
  }
}

.is-mobile body.legal::before,
.is-wechat body.legal::before {
  animation: none;
}

.is-mobile .legal-main section,
.is-wechat .legal-main section {
  box-shadow: 0 2px 12px rgba(60, 44, 32, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.85);
}