:root {
  --bg: #F3F6FA;
  --surface: #FFFFFF;
  --surface-2: #EAF1FA;
  --ink: #13233A;
  --ink-2: #44546A;
  --muted: #7A8797;
  --line: #D6DFEA;
  --blue: #1D5DB0;
  --blue-deep: #174C92;
  --blue-2: #4E94DD;
  --blue-soft: #E3EDF9;
  --accent: #C2531B;
  --pass: #2F7D4F;
  --doubt: #B07412;
  --reject: #C0392B;
  --pass-bg: #E4F1E9;
  --doubt-bg: #FBF0DC;
  --reject-bg: #F9E3DF;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  --num: "Barlow", "DIN Alternate", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", Consolas, "SFMono-Regular", monospace;
  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s5: 24px; --s6: 32px; --s7: 48px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 15px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--blue); }
button { font: inherit; }
.num { font-family: var(--num); font-variant-numeric: tabular-nums; }

/* 外壳：左侧栏 + 右侧主区 */
.shell { display: grid; grid-template-columns: 252px 1fr; min-height: 100vh; }
.side { background: var(--blue); color: #fff; display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.brand { display: flex; gap: var(--s3); align-items: center; padding: 22px 20px 18px; border-bottom: 1px solid rgba(255,255,255,.18); }
.brand svg { flex: none; }
.brand b { display: block; font-size: 20px; letter-spacing: 1px; }
.brand span { display: block; font-size: 12px; opacity: .8; }
.nav { list-style: none; margin: 0; padding: var(--s4) 12px; display: flex; flex-direction: column; gap: 4px; }
.nav a { display: grid; grid-template-columns: 34px 1fr; align-items: center; padding: 10px 12px; color: #fff; text-decoration: none; border-top: 2px solid transparent; transition: background .18s, color .18s; }
.nav a:hover { background: rgba(255,255,255,.1); }
.nav a i { font-style: normal; font-family: var(--num); font-size: 18px; font-weight: 700; opacity: .7; }
.nav a.on { background: #fff; color: var(--blue); border-top-color: var(--accent); }
.nav a.on i { opacity: 1; color: var(--accent); }
.side-foot { margin-top: auto; padding: 16px 20px 20px; font-size: 12px; line-height: 1.7; border-top: 1px solid rgba(255,255,255,.18); opacity: .9; }
.side-foot a { color: #fff; }

.main { min-width: 0; }
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: var(--s3); padding: 12px 32px; background: rgba(243,246,250,.92); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
.crumb { font-size: 13px; color: var(--muted); margin-right: auto; }
.crumb b { color: var(--ink); font-weight: 600; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; font-size: 13px; background: var(--surface); border: 1px solid var(--line); white-space: nowrap; }
.pill .dot { width: 8px; height: 8px; background: var(--muted); }
.pill.loading .dot { background: var(--doubt); animation: blink 1s infinite; }
.pill.ready .dot { background: var(--pass); }
.pill.err .dot { background: var(--reject); }
.lang { cursor: pointer; font-weight: 600; color: var(--blue); }
@keyframes blink { 50% { opacity: .3; } }

.page { display: none; padding: 32px 32px 64px; max-width: 1240px; animation: rise .35s ease both; }
.page.on { display: block; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--accent); margin: 0 0 6px; }
h1 { font-size: 32px; line-height: 1.3; margin: 0 0 10px; letter-spacing: .5px; }
h2 { font-size: 20px; margin: 0 0 12px; }
h3 { font-size: 16px; margin: 0 0 8px; }
.lead { color: var(--ink-2); font-size: 16px; max-width: 820px; margin: 0 0 28px; }

/* 组件 */
.card { background: var(--surface); border: 1px solid var(--line); border-top: 2px solid var(--blue); padding: 20px 22px; }
.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); }
.block { background: var(--blue); color: #fff; padding: 26px 28px; display: flex; flex-direction: column; justify-content: center; }
.block .big { font-family: var(--num); font-size: 64px; font-weight: 700; line-height: 1; letter-spacing: 1px; }
.block .big small { font-size: 22px; font-weight: 600; margin-left: 6px; }
.block p { margin: 10px 0 0; font-size: 15px; opacity: .92; }
.stat .k { font-family: var(--num); font-size: 40px; font-weight: 700; line-height: 1.1; color: var(--ink); }
.stat .k em { font-style: normal; color: var(--blue); }
.stat .t { font-size: 14px; color: var(--ink-2); margin-top: 6px; }
.stat .s { font-size: 12px; color: var(--muted); margin-top: 6px; }
.tag { display: inline-block; padding: 1px 8px; font-size: 12px; font-weight: 600; }
.tag.pass { background: var(--pass-bg); color: var(--pass); }
.tag.doubt { background: var(--doubt-bg); color: var(--doubt); }
.tag.reject { background: var(--reject-bg); color: var(--reject); }
.tag.info { background: var(--blue-soft); color: var(--blue); }
.note { background: var(--surface-2); border-top: 1px solid var(--blue-2); padding: 12px 16px; font-size: 14px; color: var(--ink-2); }
.note b { color: var(--ink); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border: 1px solid var(--blue); background: var(--blue); color: #fff; cursor: pointer; text-decoration: none; font-weight: 600; transition: background .15s, transform .15s; }
.btn:hover { background: var(--blue-deep); }
.btn:active { transform: translateY(1px); }
.btn.ghost { background: transparent; color: var(--blue); }
.btn.ghost:hover { background: var(--blue-soft); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* 判定条：合格 / 存疑 / 作废 */
.bar { display: flex; gap: 2px; height: 14px; background: transparent; }
.bar span { display: block; height: 100%; min-width: 3px; transition: flex-grow .6s ease; }
.bar .p { background: var(--pass); }
.bar .d { background: var(--doubt); }
.bar .r { background: var(--reject); }
.bar.tall { height: 34px; }
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--ink-2); margin-top: 8px; }
.legend i { display: inline-block; width: 10px; height: 10px; margin-right: 6px; vertical-align: -1px; }

/* 横向条形图 */
.hbars { display: flex; flex-direction: column; gap: 10px; }
.hb { display: grid; grid-template-columns: 120px 1fr 120px; gap: 10px; align-items: center; font-size: 13px; }
.hb .track { height: 18px; background: var(--surface-2); position: relative; }
.hb .fill { height: 100%; background: var(--blue-2); width: 0; transition: width .8s ease; }
.hb .fill.hot { background: var(--accent); }
.hb .v { font-family: var(--num); color: var(--ink); }

/* 示例 */
.ex-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.ex { background: var(--surface); border: 1px solid var(--line); border-top: 2px solid var(--line); padding: 16px 18px; cursor: pointer; text-align: left; transition: border-color .15s, transform .15s; }
.ex:hover { border-top-color: var(--blue); transform: translateY(-1px); }
.ex.on { border-top-color: var(--accent); background: #FFFDFB; }
.ex .n { font-family: var(--num); font-size: 26px; font-weight: 700; }
.ex .meta { font-size: 12px; color: var(--muted); margin: 2px 0 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.viewer { margin-top: 18px; background: var(--surface); border: 1px solid var(--line); border-top: 2px solid var(--blue); }
.viewer-head { display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-bottom: 1px solid var(--line); font-size: 14px; }
.viewer-head b { margin-right: auto; }
.viewer iframe { display: block; width: 100%; height: 820px; border: 0; background: #fff; }

/* 体检我的数据 */
.drop { display: block; cursor: pointer; border: 2px dashed var(--blue-2); background: var(--surface); padding: 34px 24px; text-align: center; transition: background .15s, border-color .15s; }
.drop.over { background: var(--blue-soft); border-color: var(--blue); }
.drop .ico { width: 48px; height: 48px; margin: 0 auto 12px; display: grid; place-items: center; background: var(--blue-soft); color: var(--blue); }
.drop p { margin: 4px 0; color: var(--ink-2); }
.drop small { color: var(--muted); }
.steps { display: flex; flex-direction: column; gap: 10px; }
.step { display: grid; grid-template-columns: 28px 1fr auto; gap: 10px; align-items: center; font-size: 14px; color: var(--muted); }
.step i { font-style: normal; font-family: var(--num); font-weight: 700; width: 28px; height: 28px; display: grid; place-items: center; border: 1px solid var(--line); background: var(--surface); }
.step.doing { color: var(--ink); }
.step.doing i { border-color: var(--doubt); color: var(--doubt); animation: blink 1s infinite; }
.step.done { color: var(--ink-2); }
.step.done i { background: var(--pass); border-color: var(--pass); color: #fff; }
.step .tm { font-family: var(--num); font-size: 13px; }
.progress { height: 6px; background: var(--surface-2); margin: 12px 0 4px; }
.progress span { display: block; height: 100%; width: 0; background: var(--blue); transition: width .4s ease; }
.result-tiles .stat { border-top-width: 2px; }
.result-tiles .pass .k { color: var(--pass); }
.result-tiles .doubt .k { color: var(--doubt); }
.result-tiles .reject .k { color: var(--reject); }
.skeleton { background: linear-gradient(90deg, var(--surface-2) 25%, #F6F9FD 50%, var(--surface-2) 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; height: 12px; margin: 10px 0; }
@keyframes shimmer { to { background-position: -200% 0; } }
.err-box { background: var(--reject-bg); color: var(--reject); padding: 12px 16px; font-size: 14px; display: none; }

/* 方法 */
.layers { margin-top: 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--line); border: 1px solid var(--line); }
.layer { background: var(--surface); padding: 18px; }
.layer .no { font-family: var(--num); font-size: 34px; font-weight: 700; color: var(--blue); line-height: 1; }
.layer.off .no { color: var(--muted); }
.layer p { font-size: 13px; color: var(--ink-2); margin: 6px 0 0; }
table.t { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--surface); }
table.t th { text-align: left; font-weight: 600; background: var(--surface-2); padding: 8px 10px; border-bottom: 1px solid var(--line); }
table.t td { padding: 8px 10px; border-bottom: 1px solid var(--line); }
table.t td.n { font-family: var(--num); text-align: right; }
ul.plain { margin: 0; padding-left: 18px; color: var(--ink-2); }
ul.plain li { margin: 4px 0; }
.foot { margin-top: 36px; font-size: 12px; color: var(--muted); }
.section { margin-top: 28px; }

@media (max-width: 960px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: static; height: auto; }
  .nav { flex-direction: row; overflow-x: auto; padding: 8px; }
  .nav a { grid-template-columns: 26px auto; white-space: nowrap; }
  .side-foot { display: none; }
  .top { padding: 10px 16px; flex-wrap: wrap; }
  .page { padding: 20px 16px 48px; }
  .g2, .g3, .g4, .layers { grid-template-columns: 1fr; }
  .hb { grid-template-columns: 84px 1fr 84px; }
  h1 { font-size: 24px; }
  .block .big { font-size: 48px; }
  .viewer iframe { height: 640px; }
}