:root {
  --ink: #17242c;
  --ink-2: #4a5459;
  --ink-3: #7d868b;
  --line: #e3e0d8;
  --line-2: #efece5;
  --bg: #fbfaf7;
  --card: #ffffff;
  --accent: #1B4F72;
  --accent-2: #2E6E8E;
  --accent-3: #5A93AD;
  --warn: #A33A2A;
  --good: #1D6E52;
  --gold: #9A7328;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Segoe UI", sans-serif;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 250, 247, .94);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-in {
  max-width: 1040px; margin: 0 auto; padding: 0 24px;
  height: 58px; display: flex; align-items: center; gap: 28px;
}
.brand {
  font-size: 14.5px; font-weight: 600; letter-spacing: .2px;
  color: var(--ink); text-decoration: none; white-space: nowrap;
}
.brand span { color: var(--accent); }
.nav-links { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.nav-links a {
  font-size: 13.5px; color: var(--ink-2); text-decoration: none;
  padding: 6px 11px; border-radius: 6px; white-space: nowrap;
}
.nav-links a:hover { background: #f1eee7; color: var(--ink); }
.nav-links a.on { color: var(--accent); background: #eaf0f4; font-weight: 500; }
.nav-date { font-size: 11.5px; color: var(--ink-3); white-space: nowrap; }

/* ---------- layout ---------- */
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 780px; }

/* ---------- hero ---------- */
.hero { padding: 76px 0 56px; }
.kicker {
  font-size: 11.5px; letter-spacing: 2.4px; color: var(--ink-3);
  text-transform: uppercase; margin-bottom: 18px;
}
.hero h1 {
  font-size: 40px; line-height: 1.26; font-weight: 600;
  letter-spacing: -.8px; margin: 0 0 20px; max-width: 720px;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lead { font-size: 17px; color: var(--ink-2); max-width: 620px; margin: 0; }
.hero-meta {
  display: flex; gap: 26px; flex-wrap: wrap;
  margin-top: 28px; font-size: 12.5px; color: var(--ink-3);
}

/* ---------- page head ---------- */
.phead { padding: 56px 0 8px; }
.phead h1 {
  font-size: 31px; font-weight: 600; letter-spacing: -.4px; margin: 0 0 12px; line-height: 1.32;
}
.phead p { font-size: 16px; color: var(--ink-2); max-width: 700px; margin: 0; }

/* ---------- sections ---------- */
section { padding: 44px 0; }
section + section { border-top: 1px solid var(--line-2); }
h2 {
  font-size: 22px; font-weight: 600; letter-spacing: -.2px;
  margin: 0 0 10px; line-height: 1.4;
}
h3 { font-size: 16px; font-weight: 600; margin: 30px 0 6px; }
p { margin: 13px 0; }
.eyebrow {
  font-size: 11.5px; letter-spacing: 1.8px; color: var(--ink-3); margin-bottom: 10px;
}

/* ---------- callouts ---------- */
.take {
  background: var(--card); border-left: 3px solid var(--accent);
  padding: 15px 20px; margin: 22px 0; border-radius: 0 6px 6px 0;
  font-size: 15.5px;
}
.take b { color: var(--accent); }
.warn {
  background: #fdf5f2; border-left: 3px solid var(--warn);
  padding: 15px 20px; margin: 22px 0; border-radius: 0 6px 6px 0;
  font-size: 14.5px; color: #3b2a25;
}
.warn b { color: var(--warn); }
.plain {
  background: #f5f3ee; border-radius: 8px; padding: 16px 20px;
  margin: 22px 0; font-size: 14px; color: var(--ink-2);
}

/* ---------- cards ---------- */
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: 1fr 1fr; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 20px 22px;
}
.card h3 { margin-top: 0; }
.card p { font-size: 14px; color: var(--ink-2); margin: 8px 0 0; }
.tag {
  display: inline-block; font-size: 10.5px; padding: 1px 7px;
  border-radius: 3px; background: #eaf0f4; color: var(--accent);
  margin-left: 6px; vertical-align: 1px; font-weight: 500;
}

/* ---------- link cards ---------- */
.links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 26px; }
.lcard {
  display: block; text-decoration: none; color: inherit;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 24px 24px 20px; transition: border-color .15s, transform .15s;
}
.lcard:hover { border-color: var(--accent-3); transform: translateY(-2px); }
.lcard .n { font-size: 11.5px; letter-spacing: 1.6px; color: var(--ink-3); }
.lcard .t { font-size: 17px; font-weight: 600; margin: 8px 0 6px; }
.lcard .d { font-size: 13.5px; color: var(--ink-2); line-height: 1.6; }
.lcard .go { font-size: 13px; color: var(--accent); margin-top: 14px; font-weight: 500; }

/* ---------- kpi ---------- */
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 26px 0; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 16px 16px 13px; }
.kpi .v { font-size: 27px; font-weight: 600; color: var(--accent); line-height: 1.15; letter-spacing: -.6px; }
.kpi .v small { font-size: 13.5px; font-weight: 400; color: var(--ink-2); margin-left: 2px; }
.kpi .k { font-size: 12.5px; color: var(--ink-2); margin-top: 6px; line-height: 1.5; }
.kpi .g { font-size: 10.5px; color: var(--ink-3); margin-top: 4px; }

/* ---------- figure ---------- */
.fig {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 24px 22px 18px; margin: 26px 0;
}
.fig svg { display: block; width: 100%; }
.cap {
  font-size: 12.5px; color: var(--ink-3); margin-top: 16px;
  padding-top: 13px; border-top: 1px solid var(--line-2); line-height: 1.65;
}
.cap b { color: var(--ink-2); font-weight: 500; }

/* ---------- table ---------- */
.scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 22px 0; }
.scroll table { min-width: 560px; margin: 0; }
table { width: 100%; border-collapse: collapse; font-size: 13.8px; margin: 22px 0; background: var(--card); }
th {
  text-align: left; font-weight: 600; font-size: 11.5px; letter-spacing: .6px;
  color: var(--ink-3); padding: 11px 13px; background: #f5f3ee;
  border-bottom: 1px solid var(--line);
}
td { padding: 12px 13px; border-bottom: 1px solid var(--line-2); vertical-align: top; }
tbody tr:hover td { background: #fbfaf8; }
.num { font-variant-numeric: tabular-nums; }
.ok { color: var(--good); font-weight: 500; }
.fix { color: var(--warn); font-weight: 500; }
.mut { color: var(--ink-3); }
sup.s { font-size: 10px; color: var(--ink-3); margin-left: 1px; }

/* ---------- lists ---------- */
ul.clean { padding-left: 20px; margin: 14px 0; }
ul.clean li { margin: 9px 0; }
ol.clean { padding-left: 22px; margin: 14px 0; }
ol.clean li { margin: 11px 0; }

/* ---------- checks ---------- */
.checks .q { display: flex; gap: 11px; padding: 10px 0; border-bottom: 1px dashed var(--line-2); font-size: 14.5px; }
.checks .q .n {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); color: #fff; font-size: 11.5px;
  display: flex; align-items: center; justify-content: center; margin-top: 3px;
}
.checks .q.key .n { background: var(--warn); }
.checks .q.key { font-weight: 500; }

/* ---------- sources ---------- */
.src { font-size: 13.2px; padding-left: 22px; }
.src li { margin: 13px 0; color: #3d4645; line-height: 1.65; }
.src a { color: var(--accent); text-decoration: none; border-bottom: 1px solid #cfdce6; word-break: break-all; }
.grade {
  display: inline-block; font-size: 10.5px; padding: 0 6px; border-radius: 3px;
  margin-right: 7px; font-weight: 600; vertical-align: 1px;
}
.gA { background: #e4f1eb; color: var(--good); }
.gB { background: #e8f0f5; color: var(--accent); }
.gC { background: #f8f1e3; color: var(--gold); }
.gD { background: #f1efeb; color: #6e6a62; }

/* ---------- footer ---------- */
footer {
  margin-top: 40px; padding: 34px 0 60px; border-top: 1px solid var(--line);
  font-size: 12.5px; color: var(--ink-3); line-height: 1.8;
}
footer .fr { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .hero h1 { font-size: 30px; }
  .phead h1 { font-size: 25px; }
  .kpis { grid-template-columns: 1fr 1fr; }
  .g3, .g4, .links, .g2 { grid-template-columns: 1fr; }
  .nav-in { height: auto; padding: 10px 20px; flex-wrap: wrap; gap: 10px; }
  .nav-links { margin-left: 0; }
  .nav-date { display: none; }
  body { font-size: 15px; }
  section { padding: 34px 0; }
}

/* ---------- print ---------- */
@media print {
  body { background: #fff; font-size: 10.5pt; }
  .nav, footer .fr { display: none; }
  .fig, .card, .kpi { break-inside: avoid; border: 1px solid #ddd; }
  section { break-inside: avoid; }
  a { color: #000; text-decoration: none; }
}