:root {
  --font-sans: "HarmonyOS Sans SC", "PingFang SC", "Noto Sans CJK SC",
    "Microsoft YaHei", sans-serif;
  --bg: #0a0f1b;
  --bg-soft: #101624;
  --panel: rgba(15, 22, 37, 0.9);
  --panel-border: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.08);
  --text: #ffffff;
  --text-soft: #adc0da;
  --text-muted: #7e8ba3;
  --brand: #ff8a57;
  --brand-soft: #ffb08a;
  --accent: #63d4ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
  --max-width: 1240px;
  --radius-lg: 28px;
  --radius-md: 20px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top, rgba(99, 212, 255, 0.08), transparent 34%),
    radial-gradient(circle at 80% 18%, rgba(255, 138, 87, 0.08), transparent 22%),
    linear-gradient(180deg, #0a0f1b 0%, #0c1220 100%);
}

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

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

.legal-page {
  position: relative;
  min-height: 100svh;
}

.legal-page::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(10, 15, 27, 0.12), rgba(10, 15, 27, 0.42)),
    url("assets/hero-background.svg") center top / cover no-repeat;
  opacity: 0.5;
}

.site-header,
.legal-main,
.site-footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  padding-top: 18px;
}

.header-shell {
  min-height: 88px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  width: 54px;
  height: 54px;
  filter:
    drop-shadow(0 10px 18px rgba(255, 42, 120, 0.16))
    drop-shadow(0 14px 26px rgba(255, 154, 95, 0.1));
}

.brand-copy {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.brand-copy strong {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-copy span {
  color: var(--text-muted);
  font-size: 13px;
}

.header-nav {
  justify-self: end;
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.header-nav a {
  color: var(--text-soft);
  font-size: 14px;
  font-weight: 700;
}

.header-nav .nav-current {
  color: var(--text);
}

.header-nav .nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  background: rgba(255, 138, 87, 0.12);
  border: 1px solid rgba(255, 138, 87, 0.28);
  color: var(--text);
}

.legal-main {
  padding: 132px 0 56px;
}

.legal-hero {
  display: grid;
  gap: 20px;
  max-width: 860px;
}

.hero-kicker {
  margin: 0;
  color: var(--brand-soft);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.legal-hero h1 {
  margin: 0;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.12;
  letter-spacing: -0.06em;
}

.hero-summary {
  margin: 0;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.9;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--panel-border);
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 700;
}

.legal-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 24px;
  margin-top: 32px;
  align-items: start;
}

.toc-card,
.content-card,
.support-card {
  border-radius: var(--radius-lg);
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.toc-card {
  position: sticky;
  top: 96px;
  padding: 22px;
}

.toc-card h2,
.content-card h2,
.support-card h2 {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
}

.toc-card p,
.support-card p {
  margin: 10px 0 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.8;
}

.toc-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
}

.toc-list a {
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.7;
}

.toc-list a:hover {
  color: var(--text);
}

.content-card {
  padding: 30px;
}

.content-card section + section {
  margin-top: 30px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.content-card h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.4;
}

.content-card p,
.content-card li {
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.95;
}

.content-card p {
  margin: 12px 0 0;
}

.content-card ul,
.content-card ol {
  margin: 12px 0 0;
  padding-left: 22px;
}

.content-card li + li {
  margin-top: 8px;
}

.content-card strong {
  color: var(--text);
}

.support-card {
  margin-top: 24px;
  padding: 24px;
}

.support-mail {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  margin-top: 16px;
  padding: 0 18px;
  border-radius: 999px;
  background: rgba(255, 138, 87, 0.1);
  border: 1px solid rgba(255, 138, 87, 0.2);
  color: var(--brand-soft);
  font-size: 18px;
  font-weight: 700;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.support-item {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.support-item strong {
  display: block;
  color: var(--text);
  font-size: 15px;
  line-height: 1.45;
}

.support-item p {
  margin: 10px 0 0;
}

.site-footer {
  padding-bottom: 26px;
}

.footer-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--text-muted);
  font-size: 13px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.footer-shell p {
  margin: 0;
}

.footer-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 18px;
}

@media (max-width: 980px) {
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .toc-card {
    position: static;
  }
}

@media (max-width: 720px) {
  .site-header,
  .legal-main,
  .site-footer {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .header-shell {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 14px;
    padding-bottom: 14px;
  }

  .header-nav {
    justify-self: start;
  }

  .content-card,
  .toc-card,
  .support-card {
    border-radius: 24px;
  }

  .content-card {
    padding: 22px;
  }

  .support-grid {
    grid-template-columns: 1fr;
  }

  .footer-shell {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  .legal-main {
    padding-top: 112px;
  }

  .hero-summary,
  .content-card p,
  .content-card li,
  .toc-card p,
  .support-card p {
    font-size: 14px;
  }

  .meta-pill {
    width: 100%;
  }

  .support-mail {
    width: 100%;
    justify-content: flex-start;
    font-size: 16px;
  }
}

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