/* Shared style — legal pages */
@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,400;12..96,600;12..96,800&family=Instrument+Serif:ital@0;1&family=Onest:wght@400;500;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root{
  --bg:#06060a; --bg-2:#0b0b13; --ink:#f5f4ee;
  --ink-2:rgba(245,244,238,0.72); --ink-3:rgba(245,244,238,0.42); --ink-4:rgba(245,244,238,0.16);
  --mint:#89f7b5; --violet:#8b5cff; --cream:#f3d9a4;
  --line:rgba(245,244,238,0.08); --line-2:rgba(245,244,238,0.16);
  --font-display:'Bricolage Grotesque','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  --font-serif:'Instrument Serif','Songti SC',serif;
  --font-body:'Onest','PingFang SC','Hiragino Sans GB',sans-serif;
  --font-mono:'JetBrains Mono','SF Mono',monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--ink);
  min-height:100vh;
  line-height:1.6;
  position:relative;
  overflow-x:hidden;
}
::selection{background:var(--mint);color:#03030a}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:4px}

/* i18n */
body[data-lang="zh"] .lang-en{display:none !important}
body[data-lang="en"] .lang-zh{display:none !important}
.lang-zh,.lang-en{display:contents}

body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:100;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.35 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity:0.06;mix-blend-mode:overlay;
}
body::after{
  content:'';position:fixed;top:-25vh;right:-15vw;width:85vw;height:85vw;
  background:radial-gradient(closest-side,rgba(139,92,255,0.42),rgba(139,92,255,0.08) 52%,transparent 74%);
  pointer-events:none;z-index:-1;filter:blur(12px);
}

a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--mint)}

.shell{width:100%;max-width:980px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}

/* NAV */
.nav{
  position:fixed;inset:16px 16px auto 16px;z-index:50;
  padding:12px clamp(14px,2vw,24px);
  display:flex;align-items:center;justify-content:space-between;gap:clamp(10px,2vw,16px);
  border-radius:999px;
  background:rgba(10,10,18,.6);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);
}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:clamp(15px,1.4vw,17px);letter-spacing:-.02em;flex-shrink:0}
.brand-logo{width:26px;height:26px;border-radius:7px;display:block;box-shadow:0 4px 14px -2px rgba(137,247,181,0.35),0 0 0 1px var(--line-2)}
.brand em{font-family:var(--font-serif);font-style:italic;font-weight:400;color:var(--ink-2);padding-left:2px}
.brand .brand-script{color:var(--mint);padding-left:0}
.brand .lang-zh,.brand .lang-en{display:inline}
.brand .brand-cn{font-family:'MiSans','HarmonyOS Sans SC','PingFang SC','Hiragino Sans GB','Source Han Sans SC','Noto Sans SC',sans-serif;font-weight:800;letter-spacing:-.02em;font-feature-settings:"palt" 1}
.brand .brand-cn em{font-family:inherit;font-style:normal;font-weight:inherit;padding-left:0}
.nav-right{display:inline-flex;align-items:center;gap:10px}
.back{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:999px;
  border:1px solid var(--line-2);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;
  color:var(--ink-2);transition:border-color .2s var(--ease),color .2s var(--ease);
}
.back:hover{color:var(--ink);border-color:var(--ink)}
.back svg{width:14px;height:14px}
.back-text{display:inline}
@media (max-width:560px){
  .back-text{display:none}
  .back{padding:9px 11px}
}

/* Lang toggle */
.lang-switch{
  display:inline-flex;align-items:center;padding:3px;
  background:rgba(255,255,255,.04);border:1px solid var(--line-2);border-radius:999px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;flex-shrink:0;
}
.lang-btn{
  padding:6px 10px;border-radius:999px;color:var(--ink-3);
  transition:color .2s var(--ease),background .2s var(--ease);
  min-width:32px;line-height:1;background:none;border:none;font:inherit;cursor:pointer;
}
.lang-btn[aria-pressed="true"]{background:var(--ink);color:#03030a;font-weight:700}
.lang-btn:not([aria-pressed="true"]):hover{color:var(--ink)}

/* HEADER */
.legal-head{
  padding:180px 0 60px;
  border-bottom:1px solid var(--line);
  position:relative;
}
.legal-head .eyebrow{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:20px;display:inline-flex;align-items:center;gap:10px;
}
.legal-head .eyebrow .dot{width:6px;height:6px;border-radius:999px;background:var(--mint);box-shadow:0 0 10px var(--mint)}
.legal-head h1{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(2.5rem,6vw,4.8rem);
  line-height:.95;letter-spacing:-.045em;
  margin-bottom:24px;
}
.legal-head h1 em{font-family:var(--font-serif);font-style:italic;font-weight:400;color:var(--mint)}
.legal-head .meta{
  display:flex;gap:24px;flex-wrap:wrap;
  font-family:var(--font-mono);font-size:12px;color:var(--ink-3);letter-spacing:.06em;
}
.legal-head .meta span b{color:var(--ink-2);font-weight:500}

/* CONTENT */
.legal-body{
  padding:72px 0 120px;
  font-size:15.5px;
  line-height:1.75;
  color:var(--ink-2);
}
.legal-body h2{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(1.2rem,2vw,1.55rem);
  letter-spacing:-.02em;line-height:1.2;color:var(--ink);
  margin:56px 0 16px;
  padding-top:28px;
  border-top:1px solid var(--line);
  display:flex;align-items:baseline;gap:12px;
}
.legal-body h2::before{
  content:attr(data-ix);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  color:var(--mint);font-weight:500;
}
.legal-body h2:first-of-type{border-top:none;padding-top:0;margin-top:0}
.legal-body h3{
  font-family:var(--font-display);font-weight:600;
  font-size:1.1rem;letter-spacing:-.01em;color:var(--ink);
  margin:32px 0 12px;
}
.legal-body p{margin:12px 0}
.legal-body ul,.legal-body ol{margin:14px 0 14px 1.2em}
.legal-body li{margin:8px 0}
.legal-body strong,.legal-body b{color:var(--ink);font-weight:600}
.legal-body em{font-family:var(--font-serif);font-style:italic;color:var(--cream)}

.table-wrap{
  margin:20px 0;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  border:1px solid var(--line);
  border-radius:12px;
  scrollbar-width:thin;
}
.table-wrap::-webkit-scrollbar{height:8px}
.table-wrap::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:4px}
.legal-body table{
  width:100%;
  border-collapse:collapse;
  font-size:14px;
  min-width:480px;
}
.legal-body thead{background:rgba(255,255,255,0.03)}
.legal-body th,.legal-body td{
  padding:12px 16px;text-align:left;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
  vertical-align:top;
}
.legal-body th{color:var(--ink);font-weight:600;font-family:var(--font-display);letter-spacing:.01em;white-space:nowrap}
.legal-body tr:last-child td{border-bottom:none}

.legal-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  border-left:2px solid var(--mint);
  background:rgba(137,247,181,.04);
  border-radius:0 12px 12px 0;
  color:var(--ink-2);
  font-size:14.5px;
}

.legal-body .callout{
  margin:24px 0;
  padding:22px 26px;
  border:1px solid var(--line-2);
  border-radius:16px;
  background:linear-gradient(180deg,rgba(255,255,255,0.03),rgba(255,255,255,0.01));
}
.legal-body .callout strong{color:var(--mint)}

.legal-body hr{
  border:none;height:1px;background:var(--line);margin:40px 0;
}

/* TOC */
.toc{
  position:sticky;top:100px;
  font-family:var(--font-mono);font-size:12px;
  max-height:calc(100vh - 140px);overflow-y:auto;
}
.toc-grid{
  display:grid;grid-template-columns:240px 1fr;gap:56px;
  align-items:start;
}
@media (max-width:860px){
  .toc-grid{grid-template-columns:1fr}
  .toc{position:static;max-height:none;margin-bottom:24px;padding:20px;border:1px solid var(--line);border-radius:16px}
}
.toc h4{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-3);font-weight:500;margin-bottom:18px;
}
.toc ol{list-style:none;padding:0;counter-reset:toc}
.toc li{counter-increment:toc;margin:8px 0}
.toc li a{display:flex;gap:10px;color:var(--ink-2);padding:4px 0}
.toc li a::before{
  content:counter(toc,decimal-leading-zero);
  color:var(--ink-3);font-size:10px;padding-top:1px;
}

/* FOOT */
.legal-foot{
  padding:56px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;
  font-family:var(--font-mono);font-size:11px;color:var(--ink-3);letter-spacing:.06em;
}
.legal-foot em{font-family:var(--font-serif);font-style:italic;color:var(--mint)}
.legal-foot a{color:var(--ink-2)}

/* Section anchors: offset for fixed nav */
.legal-body h2[id]{scroll-margin-top:100px}