:root {
  --navy: #07344f;
  --deep: #062a40;
  --ocean: #087eaa;
  --aqua: #41d8df;
  --coral: #ff755b;
  --ink: #102f3e;
  --muted: #64808c;
  --line: #dce9e7;
  --paper: #f2f8f6;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }

.legal-header { position: sticky; top: 0; z-index: 10; background: rgba(6,42,64,.96); color: #fff; backdrop-filter: blur(12px); box-shadow: 0 8px 30px rgba(4,36,55,.12); }
.legal-nav { width: min(1100px, calc(100% - 40px)); height: 76px; margin: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 900; letter-spacing: -.03em; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; color: #fff; background: var(--coral); border-radius: 13px 13px 13px 5px; }
.brand-mark svg { width: 27px; fill: currentColor; }
.back-home { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border: 1px solid rgba(255,255,255,.26); border-radius: 99px; color: rgba(255,255,255,.85); font-size: 13px; font-weight: 600; transition: .2s; }
.back-home:hover { background: #fff; color: var(--deep); }

.legal-hero { color: #fff; background: radial-gradient(circle at 82% 20%, rgba(65,216,223,.24), transparent 29%), linear-gradient(145deg, #073b59, #075f7d); }
.legal-hero-inner { width: min(1100px, calc(100% - 40px)); margin: auto; padding: 72px 0 78px; }
.kicker { margin: 0 0 15px; color: #9eeeed; font-size: 11px; font-weight: 800; letter-spacing: .2em; }
.legal-hero h1 { margin: 0; font-size: clamp(42px, 6vw, 70px); line-height: 1.1; letter-spacing: -.055em; }
.legal-meta { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 24px; color: rgba(255,255,255,.62); font-size: 12px; }

.legal-layout { width: min(1100px, calc(100% - 40px)); margin: 0 auto; padding: 58px 0 90px; display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 42px; align-items: start; }
.legal-toc { position: sticky; top: 104px; padding: 24px; background: #fff; border: 1px solid rgba(7,52,79,.06); border-radius: 20px; box-shadow: 0 14px 42px rgba(16,63,73,.07); }
.legal-toc strong { display: block; margin-bottom: 13px; font-size: 12px; letter-spacing: .12em; color: var(--ocean); }
.legal-toc a { display: block; padding: 7px 0; color: var(--muted); font-size: 12px; line-height: 1.5; transition: color .2s, transform .2s; }
.legal-toc a:hover { color: var(--coral); transform: translateX(3px); }
.legal-document { padding: 52px 58px; background: #fff; border-radius: 28px 28px 28px 8px; box-shadow: 0 18px 55px rgba(16,63,73,.08); }
.notice { margin: 0 0 42px; padding: 19px 21px; color: #385d69; background: #edf9f7; border-left: 4px solid var(--aqua); border-radius: 4px 13px 13px 4px; font-size: 13px; line-height: 1.85; }
.legal-section { scroll-margin-top: 105px; padding: 0 0 37px; margin: 0 0 37px; border-bottom: 1px solid var(--line); }
.legal-section:last-child { margin-bottom: 0; padding-bottom: 0; border: 0; }
.legal-section h2 { margin: 0 0 19px; color: var(--navy); font-size: 22px; letter-spacing: -.02em; }
.legal-section h3 { margin: 23px 0 10px; font-size: 16px; }
.legal-section p, .legal-section li { color: #536f79; font-size: 14px; line-height: 1.95; }
.legal-section p { margin: 10px 0; }
.legal-section ul, .legal-section ol { margin: 12px 0; padding-left: 1.4em; }
.legal-section li + li { margin-top: 8px; }
.legal-section strong { color: #244d5d; }
.data-table { width: 100%; margin: 18px 0; border-collapse: collapse; font-size: 13px; }
.data-table th, .data-table td { padding: 14px 15px; border: 1px solid var(--line); text-align: left; vertical-align: top; line-height: 1.75; }
.data-table th { color: var(--navy); background: #f1f8f6; font-weight: 700; }
.data-table td { color: #5c7780; }
.legal-footer { padding: 36px 20px; color: rgba(255,255,255,.55); background: var(--deep); text-align: center; font-size: 11px; line-height: 1.9; }
.legal-footer nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px 24px; margin-bottom: 10px; }
.legal-footer a:hover { color: #fff; }

@media (max-width: 820px) {
  .legal-layout { grid-template-columns: 1fr; }
  .legal-toc { position: static; display: flex; flex-wrap: wrap; gap: 3px 18px; }
  .legal-toc strong { width: 100%; }
  .legal-toc a { padding: 4px 0; }
  .legal-document { padding: 38px 30px; }
}

@media (max-width: 520px) {
  .legal-nav, .legal-hero-inner, .legal-layout { width: calc(100% - 28px); }
  .legal-nav { height: 68px; }
  .back-home { padding: 9px 12px; }
  .back-home span { display: none; }
  .legal-hero-inner { padding: 54px 0 58px; }
  .legal-layout { padding-top: 28px; gap: 22px; }
  .legal-toc { padding: 20px; }
  .legal-document { padding: 30px 21px; border-radius: 22px 22px 22px 7px; }
  .data-table, .data-table tbody, .data-table tr, .data-table th, .data-table td { display: block; }
  .data-table tr { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin-bottom: 12px; }
  .data-table th, .data-table td { border: 0; }
  .data-table th { padding-bottom: 7px; }
  .data-table td { padding-top: 0; }
}

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