:root {
  --ink: #171b21;
  --muted: #68717d;
  --line: #dde2e7;
  --paper: #f4f1ea;
  --panel: #fffdf9;
  --accent: #c65332;
  --accent-soft: #f4e2db;
  --green: #2f6f55;
  --amber: #986313;
  --red: #9c3e37;
  --radius: 16px;
  --shadow: 0 18px 60px rgba(29, 36, 43, .08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 17px; line-height: 1.65;
}
a { color: inherit; }
.skip { position: absolute; left: -9999px; top: 0; }
.skip:focus { left: 16px; z-index: 20; background: #fff; padding: 8px 12px; }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.topbar { padding: 22px 0 12px; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { font-weight: 760; letter-spacing: -.02em; }
nav { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: 15px; }
nav a { text-decoration: none; color: var(--muted); }
nav a:hover, nav a:focus-visible { color: var(--ink); }
.hero { padding: 50px 0 38px; border-top: 1px solid var(--line); }
.eyebrow { color: var(--accent); font-weight: 720; font-size: 14px; letter-spacing: .08em; }
h1 { font-size: clamp(42px, 6vw, 76px); line-height: 1.06; letter-spacing: -.05em; margin: 14px 0 20px; max-width: 860px; }
.lead { max-width: 820px; font-size: clamp(20px, 2.2vw, 27px); line-height: 1.5; margin: 0; }
.meta { margin-top: 22px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 14px; }
.status { display: inline-flex; align-items: center; gap: 7px; }
.status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--amber); }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 0 0 40px; }
.metric, .panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.metric { padding: 24px; }
.metric-label { color: var(--muted); font-size: 15px; }
.metric-value { font-size: clamp(32px, 4vw, 48px); font-weight: 760; line-height: 1.1; margin: 10px 0 8px; letter-spacing: -.04em; }
.metric-value small { font-size: .48em; color: var(--muted); font-weight: 550; letter-spacing: 0; }
.metric-note { color: var(--muted); font-size: 13px; }
section { padding: 34px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 18px; }
h2 { font-size: clamp(26px, 3.4vw, 38px); line-height: 1.2; letter-spacing: -.035em; margin: 0; }
.section-note { color: var(--muted); font-size: 14px; margin: 0; }
.grid-2 { display: grid; grid-template-columns: 1.35fr .65fr; gap: 18px; }
.panel { padding: 24px; }
.figure { overflow: hidden; padding: 0; }
.figure img { width: 100%; display: block; object-fit: cover; }
.figure figcaption { padding: 15px 18px; color: var(--muted); font-size: 14px; }
.callout { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 18px 20px; border-radius: 0 12px 12px 0; }
.callout b { display: block; margin-bottom: 6px; }
.facts { display: grid; gap: 14px; }
.fact { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.fact:last-child { border: 0; padding: 0; }
.fact span { color: var(--muted); font-size: 14px; }
.fact strong { font-size: 21px; }
.chart { display: grid; gap: 17px; padding: 6px 0; }
.bar-row { display: grid; grid-template-columns: 65px minmax(0, 1fr) 72px; align-items: center; gap: 12px; font-size: 14px; }
.bar-track { height: 13px; background: #ece8e0; border-radius: 99px; overflow: hidden; }
.bar { height: 100%; width: var(--w); background: var(--accent); border-radius: 99px; }
.bar-row strong { text-align: right; font-variant-numeric: tabular-nums; }
.classes { display: grid; gap: 10px; margin-top: 20px; }
.class-row { display: grid; grid-template-columns: minmax(155px, 1fr) 42px minmax(80px, 1.2fr); align-items: center; gap: 12px; }
.class-label { font-size: 14px; }
.class-count { text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; }
.class-line { height: 7px; border-radius: 99px; background: #e5e0d7; overflow: hidden; }
.class-line i { display: block; height: 100%; width: var(--w); border-radius: inherit; }
.c-policy { background: var(--green); }
.c-error { background: var(--red); }
.c-unknown { background: var(--amber); }
.matrix-wrap { overflow-x: auto; padding-bottom: 4px; }
table { width: 100%; border-collapse: collapse; min-width: 720px; font-size: 14px; }
th, td { padding: 11px 10px; border-bottom: 1px solid var(--line); text-align: center; }
th:first-child, td:first-child { text-align: left; }
thead th { color: var(--muted); font-weight: 600; }
.cell { width: 30px; height: 30px; margin: auto; border-radius: 9px; display: grid; place-items: center; font-size: 12px; font-weight: 750; }
.cell.pass { background: #dcefe4; color: #246145; }
.cell.policy { background: #edf0e9; color: #55804f; }
.cell.error { background: #f6e0dd; color: var(--red); }
.cell.unknown { background: #f4e8cb; color: var(--amber); }
.legend { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 14px; color: var(--muted); font-size: 13px; }
.legend span::before { content: ""; display: inline-block; width: 9px; height: 9px; border-radius: 3px; margin-right: 6px; background: var(--c); }
.notes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.note { padding: 21px; background: rgba(255, 253, 249, .72); border: 1px solid var(--line); border-radius: 13px; }
.note h3 { font-size: 17px; margin: 0 0 6px; }
.note p { margin: 0; color: var(--muted); font-size: 15px; }
footer { margin-top: 40px; padding: 30px 0 50px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
noscript { display: block; margin: 20px 0; padding: 14px; border: 1px solid var(--line); background: #fff; }
@media (max-width: 760px) {
  body { font-size: 16px; }
  .shell { width: min(100% - 24px, 1180px); }
  .topbar { padding-top: 14px; }
  .topbar-inner { align-items: flex-start; flex-direction: column; gap: 10px; }
  nav { gap: 8px 15px; }
  .hero { padding: 32px 0 26px; }
  h1 { margin-top: 10px; }
  .lead { font-size: 19px; }
  .metrics { grid-template-columns: 1fr; margin-bottom: 20px; }
  .metric { padding: 19px; }
  .grid-2, .notes { grid-template-columns: 1fr; }
  section { padding: 25px 0; }
  .section-head { display: block; }
  .section-note { margin-top: 8px; }
  .panel { padding: 18px; }
  .figure { padding: 0; }
  .bar-row { grid-template-columns: 56px minmax(0,1fr) 62px; gap: 8px; }
  .class-row { grid-template-columns: 1fr 34px; }
  .class-line { display: none; }
  .matrix-wrap table { min-width: 670px; }
  th, td { padding: 9px 7px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }