:root {
  color-scheme: light;
  --paper: #f7f2e8;
  --paper-deep: #efe4d5;
  --paper-soft: rgba(255, 251, 245, 0.82);
  --ink: #2f261d;
  --ink-soft: rgba(47, 38, 29, 0.72);
  --ink-faint: rgba(47, 38, 29, 0.44);
  --line: rgba(108, 86, 63, 0.14);
  --line-strong: rgba(108, 86, 63, 0.24);
  --accent: #b5764f;
  --accent-soft: rgba(181, 118, 79, 0.1);
  --accent-wash: rgba(181, 118, 79, 0.18);
  --shadow-shell: 0 22px 60px rgba(88, 65, 45, 0.09);
  --shadow-card: 0 14px 34px rgba(88, 65, 45, 0.08);
  --radius-shell: 32px;
  --radius-card: 24px;
  --radius-chip: 999px;
  --font-serif: "Iowan Old Style", "Palatino Linotype", "STSong", "Songti SC",
    "Noto Serif SC", serif;
  --font-sans: "SF Pro Text", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  --page-width: 1180px;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.7;
  background:
    radial-gradient(circle at top left, rgba(181, 118, 79, 0.16), transparent 28%),
    radial-gradient(circle at right 18%, rgba(180, 141, 101, 0.12), transparent 22%),
    linear-gradient(180deg, #fbf8f2 0%, #f2ebdf 100%);
}

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

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

::selection {
  color: #fff9f2;
  background: rgba(181, 118, 79, 0.72);
}

.legal-page {
  width: 100%;
  padding: 32px 18px 56px;
}

.legal-shell {
  width: min(100%, var(--page-width));
  margin: 0 auto;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-shell);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(251, 247, 240, 0.96));
  box-shadow: var(--shadow-shell);
  backdrop-filter: blur(18px);
}

.legal-header {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.8fr);
  gap: 20px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.legal-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.legal-brand-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
  border-radius: 24px;
  border: 1px solid rgba(181, 118, 79, 0.18);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(243, 233, 219, 0.96));
  box-shadow: 0 16px 30px rgba(181, 118, 79, 0.14);
}

.legal-logo {
  width: 40px;
  height: 40px;
}

.legal-eyebrow {
  margin: 0 0 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.28em;
  color: var(--ink-faint);
}

.legal-brand-copy h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(2rem, 2.8vw, 2.9rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: 0.01em;
}

.legal-app-name {
  margin: 7px 0 0;
  font-size: 12px;
  color: var(--ink-soft);
}

.legal-intro {
  margin: 0;
  max-width: 760px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.legal-summary {
  display: grid;
  gap: 14px;
  align-content: start;
}

.legal-meta {
  margin: 0;
  padding: 18px;
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background:
    linear-gradient(180deg, rgba(181, 118, 79, 0.08), rgba(255, 255, 255, 0.72));
  box-shadow: var(--shadow-card);
}

.legal-meta-item {
  margin: 0;
}

.legal-meta-item dt {
  margin: 0 0 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
}

.legal-meta-item dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.legal-layout {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.legal-sidebar {
  position: sticky;
  top: 24px;
}

.legal-sidebar-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.56);
  box-shadow: var(--shadow-card);
}

.legal-sidebar-card + .legal-sidebar-card {
  margin-top: 14px;
}

.legal-sidebar-eyebrow {
  margin: 0 0 12px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--ink-faint);
}

.legal-toc {
  display: grid;
  gap: 8px;
}

.legal-toc a {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 10px 12px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.42);
  color: var(--ink-soft);
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.legal-toc a:hover {
  transform: translateX(2px);
  background: var(--accent-soft);
  color: var(--ink);
}

.legal-toc-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  border-radius: 999px;
  background: rgba(181, 118, 79, 0.12);
  color: #9a6440;
  font-size: 11px;
  font-weight: 700;
}

.legal-toc-text {
  font-size: 13px;
  line-height: 1.5;
}

.legal-content {
  min-width: 0;
}

.legal-section {
  scroll-margin-top: 96px;
  margin-top: 14px;
  padding: 22px 22px 20px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.66), rgba(255, 255, 255, 0.5));
}

.legal-section:first-child {
  margin-top: 0;
}

.legal-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.legal-section-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  min-height: 38px;
  padding: 0 10px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: #965f3c;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.legal-section h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.legal-copy p {
  margin: 0;
  font-size: 14px;
  line-height: 1.95;
  color: var(--ink-soft);
}

.legal-copy p + p,
.legal-list,
.legal-definition {
  margin-top: 12px;
}

.legal-list {
  padding-left: 1.1rem;
  color: var(--ink-soft);
}

.legal-list li {
  margin: 0;
  padding-left: 0.2rem;
  font-size: 14px;
  line-height: 1.9;
}

.legal-list li + li {
  margin-top: 8px;
}

.legal-definition {
  display: grid;
  gap: 10px;
}

.legal-definition-item {
  padding: 12px 14px;
  border: 1px solid rgba(108, 86, 63, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.42);
}

.legal-definition-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--ink);
}

.legal-definition-item span {
  display: block;
  font-size: 13px;
  line-height: 1.82;
  color: var(--ink-soft);
}

@media (max-width: 920px) {
  .legal-shell {
    padding: 22px;
    border-radius: 28px;
  }

  .legal-header,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .legal-sidebar {
    position: static;
  }

  .legal-toc {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  html {
    font-size: 15px;
  }

  .legal-page {
    padding: max(14px, env(safe-area-inset-top)) 12px 28px;
  }

  .legal-shell {
    padding: 16px;
    border-radius: 24px;
  }

  .legal-brand {
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
  }

  .legal-brand-icon {
    width: 60px;
    height: 60px;
    border-radius: 20px;
  }

  .legal-logo {
    width: 34px;
    height: 34px;
  }

  .legal-intro {
    font-size: 14px;
    line-height: 1.82;
  }

  .legal-meta,
  .legal-sidebar-card,
  .legal-section {
    padding: 16px;
  }

  .legal-toc {
    grid-template-columns: 1fr;
  }

  .legal-section-header {
    align-items: flex-start;
  }

  .legal-section h2 {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}