:root {
  --legal-bg: #ffffff;
  --legal-surface: #ffffff;
  --legal-line: #e5e7eb;
  --legal-text: #111827;
  --legal-muted: #667085;
  --legal-accent: #2563eb;
  --legal-accent-soft: #eff6ff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    "SF Pro Display",
    "SF Pro Text",
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    sans-serif;
  color: var(--legal-text);
  background: var(--legal-bg);
}

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

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

.legal-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--legal-line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
}

.legal-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: 1380px;
  margin: 0 auto;
  padding: 0 1.5rem;
  min-height: 4.75rem;
}

.legal-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.legal-brand img {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 0.85rem;
}

.legal-brand-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
}

.legal-brand-subtitle {
  margin-top: 0.18rem;
  font-size: 0.78rem;
  color: var(--legal-muted);
}

.legal-top-nav {
  display: inline-flex;
  align-items: center;
  gap: 1.6rem;
  font-size: 0.92rem;
  color: #475467;
}

.legal-top-nav a {
  transition: color 160ms ease;
}

.legal-top-nav a:hover,
.legal-top-nav a.is-current {
  color: var(--legal-text);
}

.legal-main {
  padding: 2rem 1.5rem 4.5rem;
}

.legal-layout {
  display: grid;
  gap: 2rem;
  max-width: 1380px;
  margin: 0 auto;
}

.legal-sidebar-inner {
  border: 1px solid var(--legal-line);
  border-radius: 1rem;
  background: var(--legal-surface);
  padding: 1rem 0;
}

.legal-sidebar-label {
  padding: 0 1rem 0.75rem;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #94a3b8;
}

.legal-sidebar a {
  display: block;
  padding: 0.72rem 1rem;
  border-left: 2px solid transparent;
  font-size: 0.95rem;
  color: #475467;
  transition:
    background-color 160ms ease,
    color 160ms ease,
    border-color 160ms ease;
}

.legal-sidebar a:hover {
  background: #f8fafc;
  color: var(--legal-text);
}

.legal-sidebar a.is-current {
  border-left-color: var(--legal-accent);
  background: #f8fafc;
  color: var(--legal-text);
  font-weight: 700;
}

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

.legal-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.84rem;
  color: var(--legal-muted);
}

.legal-breadcrumb-separator {
  color: #cbd5e1;
}

.legal-article {
  max-width: 820px;
}

.legal-kicker {
  margin-top: 1.5rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #94a3b8;
}

.legal-title {
  margin: 0.8rem 0 0;
  font-size: clamp(2rem, 4.6vw, 2.8rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.legal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.3rem;
  margin-top: 1rem;
  font-size: 0.92rem;
  color: var(--legal-muted);
}

.legal-intro {
  margin: 1.9rem 0 0;
  font-size: 1rem;
  line-height: 1.95;
  color: #344054;
}

.legal-section {
  margin-top: 2.6rem;
  scroll-margin-top: 6rem;
}

.legal-section h2 {
  margin: 0 0 1rem;
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.legal-section p {
  margin: 0 0 1rem;
  font-size: 0.97rem;
  line-height: 1.95;
  color: #344054;
}

.legal-section ul {
  margin: 0;
  padding-left: 1.3rem;
  color: #344054;
}

.legal-section li {
  margin-bottom: 0.7rem;
  font-size: 0.97rem;
  line-height: 1.9;
}

.legal-toc {
  display: none;
}

.legal-toc-inner {
  border-left: 1px solid var(--legal-line);
  padding-left: 1rem;
}

.legal-toc-title {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #94a3b8;
}

.legal-toc-links {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.9rem;
}

.legal-toc-links a {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--legal-muted);
  transition: color 160ms ease;
}

.legal-toc-links a:hover,
.legal-toc-links a.is-current {
  color: var(--legal-text);
}

.legal-footer {
  border-top: 1px solid var(--legal-line);
  padding: 1.35rem 1.5rem 2rem;
}

.legal-footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem 1.25rem;
  max-width: 1380px;
  margin: 0 auto;
  font-size: 0.86rem;
  color: var(--legal-muted);
}

.legal-footer-links {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.legal-footer-links a:hover {
  color: var(--legal-text);
}

@media (min-width: 1024px) {
  .legal-layout {
    grid-template-columns: 14rem minmax(0, 1fr);
    align-items: start;
  }

  .legal-sidebar-inner {
    position: sticky;
    top: 6.25rem;
  }
}

@media (min-width: 1280px) {
  .legal-layout {
    grid-template-columns: 14rem minmax(0, 1fr) 13rem;
  }

  .legal-toc {
    display: block;
  }

  .legal-toc-inner {
    position: sticky;
    top: 6.25rem;
  }
}

@media (max-width: 1023px) {
  .legal-top-nav {
    display: none;
  }

  .legal-sidebar-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0;
    border: none;
    border-radius: 0;
  }

  .legal-sidebar-label {
    width: 100%;
    padding: 0;
  }

  .legal-sidebar a {
    border: 1px solid var(--legal-line);
    border-left-width: 1px;
    border-radius: 999px;
    padding: 0.68rem 1rem;
  }

  .legal-sidebar a.is-current {
    border-color: #bfdbfe;
    background: var(--legal-accent-soft);
  }
}

@media (max-width: 640px) {
  .legal-header-inner,
  .legal-main,
  .legal-footer {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .legal-brand-title {
    font-size: 0.95rem;
  }

  .legal-brand-subtitle {
    font-size: 0.74rem;
  }

  .legal-meta {
    flex-direction: column;
    gap: 0.35rem;
  }

  .legal-section {
    margin-top: 2.2rem;
  }

  .legal-section h2 {
    font-size: 1.38rem;
  }
}

/* Compatibility polish for the compact privacy and agreement documents. */
body {
  padding: 0 1.25rem;
  color: #243044;
  background:
    radial-gradient(circle at 10% 0%, rgba(22, 119, 255, 0.1), transparent 24rem),
    radial-gradient(circle at 92% 12%, rgba(89, 211, 220, 0.07), transparent 20rem),
    linear-gradient(180deg, #fbfcff, #f3f6fa);
  background-attachment: fixed;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 860px;
  margin: 2rem auto;
  border: 1px solid rgba(226, 232, 240, 0.88);
  border-radius: 1.75rem;
  background: rgba(255, 255, 255, 0.9);
  padding: 2rem 3.5rem 4rem;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.07);
  backdrop-filter: blur(16px);
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2.25rem;
  color: #526176;
  font-size: 0.88rem;
  font-weight: 650;
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.legal-back:hover {
  color: #1459c7;
  transform: translateX(-2px);
}

.legal-back:focus-visible {
  border-radius: 0.75rem;
  outline: 3px solid rgba(22, 119, 255, 0.2);
  outline-offset: 4px;
}

.legal-back img {
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 0.75rem;
  box-shadow: 0 8px 18px rgba(22, 119, 255, 0.16);
}

.wrap h1 {
  color: #172033;
  font-size: clamp(1.55rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: 0;
}

.wrap .meta {
  color: #7b8798;
  margin-bottom: 2.75rem;
}

.wrap h2 {
  position: relative;
  margin-top: 2.5rem;
  border-bottom-color: #e7ebf1;
  color: #172033;
  font-size: 1.08rem;
  font-weight: 700;
}

.wrap h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 2.6rem;
  height: 2px;
  border-radius: 9999px;
  background: #1677ff;
}

.wrap p {
  color: #475569;
}

.wrap ul {
  color: #526176;
}

.wrap .notice {
  border: 1px solid rgba(22, 119, 255, 0.12);
  border-left: 3px solid #1677ff;
  border-radius: 0 1rem 1rem 0;
  color: #42526a;
  background: linear-gradient(135deg, rgba(238, 245, 255, 0.96), rgba(248, 251, 255, 0.94));
  padding: 1rem 1.15rem;
}

.wrap table {
  overflow: hidden;
  border-radius: 1rem;
}

.wrap table th,
.wrap table td {
  border-color: #e3e8ef;
}

.wrap table th {
  color: #243044;
  background: #f3f7fc;
}

@media (max-width: 640px) {
  body {
    padding: 0;
    background: #ffffff;
  }

  .wrap {
    margin: 0;
    border: 0;
    border-radius: 0;
    padding: 1.25rem 1.1rem 3rem;
    box-shadow: none;
    backdrop-filter: none;
  }

  .legal-back {
    margin-bottom: 1.75rem;
  }

  .wrap .meta {
    margin-bottom: 2.1rem;
  }
}