:root {
  color-scheme: light;
  --ink: #102a43;
  --muted: #526a7d;
  --line: #d8e5ef;
  --paper: #f7fbff;
  --card: #ffffff;
  --blue: #0d66d0;
  --cyan: #0bbfe9;
  --navy: #0a315f;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 92% 0%, rgba(11,191,233,.15), transparent 28rem),
    linear-gradient(180deg, #fff 0, var(--paper) 22rem);
  color: var(--ink);
  line-height: 1.7;
}
a { color: var(--blue); text-underline-offset: .18em; }
.shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.9); backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(216,229,239,.85);
}
.nav { min-height: 68px; display: flex; align-items: center; gap: 22px; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; font-weight: 750; }
.brand img { width: 38px; height: 38px; border-radius: 10px; }
.brand span small { display: block; color: var(--muted); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; }
.links { display: flex; gap: 18px; margin-left: auto; font-size: 14px; }
.links a { color: var(--ink); text-decoration: none; }
.lang { border-left: 1px solid var(--line); padding-left: 18px; }
.hero { padding: 84px 0 54px; }
.eyebrow { color: var(--blue); font-weight: 750; letter-spacing: .12em; text-transform: uppercase; font-size: 12px; }
.hero h1 { max-width: 820px; margin: 12px 0 18px; font-size: clamp(42px, 7vw, 78px); line-height: 1.02; letter-spacing: -.045em; }
.hero p { max-width: 720px; color: var(--muted); font-size: 19px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; padding: 11px 18px; border-radius: 999px; text-decoration: none; font-weight: 700; border: 1px solid var(--line); background: var(--card); }
.button.primary { color: white; border-color: var(--blue); background: linear-gradient(135deg, var(--blue), #058ada); box-shadow: 0 12px 30px rgba(13,102,208,.22); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding-bottom: 74px; }
.card { padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.9); box-shadow: 0 14px 40px rgba(16,42,67,.06); }
.card h2 { margin: 0 0 6px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.document { display: grid; grid-template-columns: 220px minmax(0, 760px); gap: 48px; padding: 54px 0 90px; }
.rail { align-self: start; position: sticky; top: 96px; color: var(--muted); font-size: 13px; }
.rail strong { display: block; color: var(--ink); font-size: 15px; margin-bottom: 8px; }
.content { min-width: 0; padding: 36px 44px; background: rgba(255,255,255,.94); border: 1px solid var(--line); border-radius: 24px; box-shadow: 0 18px 55px rgba(16,42,67,.07); }
.content h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.08; letter-spacing: -.035em; margin-top: 0; }
.content h2 { margin-top: 2.2em; padding-top: .45em; border-top: 1px solid var(--line); font-size: 25px; }
.content h3 { margin-top: 1.7em; font-size: 19px; }
.content p, .content li { color: #29475f; }
.content table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; font-size: 14px; }
.content th, .content td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
.content th { background: #eef7fd; }
.content code { overflow-wrap: anywhere; background: #edf4fa; border-radius: 5px; padding: .12em .35em; }
.content pre { overflow-x: auto; border-radius: 12px; padding: 16px; color: #eaf6ff; background: var(--navy); }
.content pre code { padding: 0; color: inherit; background: transparent; }
.notice { border-left: 4px solid var(--cyan); padding: 12px 16px; background: #eefaFE; color: var(--navy); border-radius: 0 10px 10px 0; }
.status-list { display: grid; gap: 12px; margin: 26px 0; }
.status-row { display: flex; justify-content: space-between; gap: 18px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 14px; background: white; }
.pill { display: inline-flex; align-items: center; border-radius: 999px; padding: 4px 10px; color: #775d00; background: #fff4c2; font-size: 12px; font-weight: 750; }
footer { border-top: 1px solid var(--line); padding: 28px 0 42px; color: var(--muted); font-size: 13px; }
@media (max-width: 820px) {
  .links a:not(.lang) { display: none; }
  .grid { grid-template-columns: 1fr; }
  .document { grid-template-columns: 1fr; gap: 16px; padding-top: 30px; }
  .rail { position: static; }
  .content { padding: 26px 20px; border-radius: 18px; }
}