/* =========================================================
   fill vs outline — static report page
   ========================================================= */
:root{
  --bg:#f6f5f1;
  --paper:#ffffff;
  --ink:#15181e;
  --ink-2:#3d434d;
  --muted:#6f7681;
  --faint:#9aa1ab;
  --line:#e6e2d9;
  --line-2:#d8d3c8;
  --fill:#c62828;
  --fill-deep:#9f1f1f;
  --fill-bg:#fdf3f1;
  --out:#0a7a55;
  --out-deep:#075e42;
  --out-bg:#eefaf4;
  --amber:#a15c07;
  --amber-bg:#fdf6e8;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,"Segoe UI",sans-serif;
  --shadow:0 1px 2px rgba(21,24,30,.05), 0 18px 40px -32px rgba(21,24,30,.35);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:15.5px/1.7 var(--sans);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.lb-open{overflow:hidden}
img{max-width:100%}
code{font-family:var(--mono);font-size:.92em;background:#f0eee8;border-radius:4px;padding:1px 4px}
mark{background:#ffe0dc;color:#8f1a1a;border-radius:3px;padding:0 2px}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
a{color:var(--out-deep)}

/* ---------------- hero ---------------- */
.hero{
  background:var(--paper);
  border-bottom:1px solid var(--line);
  position:relative;
  overflow:hidden;
}
.hero::before,.hero::after{
  content:"";position:absolute;border-radius:50%;pointer-events:none;
}
.hero::before{
  width:520px;height:520px;right:-140px;top:-170px;
  border:1.5px dashed rgba(198,40,40,.20);
}
.hero::after{
  width:360px;height:360px;right:-60px;top:-90px;
  border:1.5px solid rgba(10,122,85,.13);
}
.hero-in{position:relative;z-index:1;padding-top:58px;padding-bottom:46px}
.eyebrow{
  display:flex;align-items:center;gap:9px;margin:0 0 18px;
  font:600 11.5px/1 var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--muted);
}
.live{width:7px;height:7px;border-radius:50%;background:var(--out);box-shadow:0 0 0 3px rgba(10,122,85,.14)}
h1{
  margin:0 0 14px;font-size:clamp(34px,4.6vw,56px);line-height:1.08;
  letter-spacing:-.028em;font-weight:750;
}
h1 .vs{font-weight:400;color:#b9b2a4;font-size:.62em;letter-spacing:0;margin:0 .06em;vertical-align:.08em}
.deck{margin:0;max-width:760px;font-size:17px;line-height:1.65;color:var(--ink-2)}

.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:34px}
.stat{
  border:1px solid var(--line);border-radius:18px;padding:20px 22px 18px;
  background:linear-gradient(180deg,#fff 0%,#fcfbf7 100%);
  box-shadow:var(--shadow);
  min-width:0;
}
.stat-top{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.stat-k{font-size:13px;font-weight:650;letter-spacing:.02em;color:var(--ink-2)}
.stat-tag{font:500 10.5px/1 var(--mono);letter-spacing:.04em;color:var(--faint);background:#f5f3ed;border:1px solid #ece9e1;border-radius:999px;padding:4px 8px}
.stat-n{
  display:flex;align-items:baseline;gap:14px;margin:10px 0 2px;
  font-size:clamp(38px,4.8vw,58px);line-height:1;font-weight:720;
  letter-spacing:-.035em;font-variant-numeric:tabular-nums;
}
.n-fill{color:#a8a49b}
.n-arrow{color:#c9c3b6;font-size:.58em;font-weight:400;letter-spacing:0;transform:translateY(-4px)}
.n-out{color:var(--out)}
.stat-d{display:flex;align-items:center;gap:10px;font-size:13.5px;font-variant-numeric:tabular-nums}
.stat-d .up{color:var(--out-deep);font-weight:700}
.stat-d .pct{color:var(--muted);font-weight:600}
.stat-src{margin-top:10px;font:11px/1.5 var(--mono);color:var(--faint);overflow-wrap:anywhere}

.one-liner{
  margin:20px 0 0;padding:13px 18px;border-left:3px solid var(--out);
  background:#f2f1ea;border-radius:0 10px 10px 0;
  font-size:15.5px;color:#2c323b;
}
.one-liner b{color:var(--out-deep);font-variant-numeric:tabular-nums}
.one-liner .ol-k{
  display:inline-block;margin-right:8px;padding:1px 7px;border-radius:4px;
  background:var(--out);color:#fff;font-size:11px;font-weight:650;letter-spacing:.08em;
  transform:translateY(-1px);
}

/* ---------------- nav ---------------- */
.nav{
  position:sticky;top:0;z-index:40;
  background:rgba(246,245,241,.9);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-in{display:flex;align-items:center;gap:2px;height:50px;overflow-x:auto;scrollbar-width:none}
.nav-in::-webkit-scrollbar{display:none}
.nav-t{font:600 11px/1 var(--mono);letter-spacing:.12em;color:var(--faint);margin-right:10px;white-space:nowrap}
.nav a{
  padding:6px 11px;border-radius:999px;white-space:nowrap;
  font-size:13px;color:#5c636e;text-decoration:none;transition:background .15s,color .15s;
}
.nav a:hover{background:#ece9e1;color:var(--ink)}
.nav a.on{background:var(--ink);color:#fff}

/* ---------------- sections ---------------- */
.sec{padding:58px 0 6px;scroll-margin-top:64px}
.kicker{
  margin:0 0 10px;font:600 11.5px/1 var(--mono);letter-spacing:.14em;
  text-transform:uppercase;color:var(--out);
}
h2{margin:0 0 12px;font-size:clamp(25px,2.6vw,33px);line-height:1.2;letter-spacing:-.022em;font-weight:720}
.lede{margin:0;max-width:800px;font-size:15.5px;color:#4b525d}
.lede strong{color:var(--ink);font-weight:650}

/* ---------------- case cards ---------------- */
.case{
  margin-top:22px;padding:22px 22px 18px;
  background:var(--paper);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow);
  scroll-margin-top:70px;
}
.case-hd{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.case-no{font:650 12px/1 var(--mono);color:#b4ada0;letter-spacing:.08em}
.case-hd h3{margin:0;font-size:19.5px;line-height:1.3;letter-spacing:-.015em;font-weight:680}
.chip{
  font:600 11px/1 var(--mono);letter-spacing:.03em;
  padding:5px 9px;border-radius:999px;border:1px solid transparent;white-space:nowrap;
}
.chip-obj{background:#eef3fb;color:#2c5a9e;border-color:#dce7f8}
.chip-part{background:#f7effc;color:#7a3fa4;border-color:#efdff8}
.chip-idx{background:#f4f2ec;color:#7b7364;border-color:#e9e5da}
.case-lab{
  display:inline-block;max-width:100%;margin:10px 0 16px;padding:4px 9px;
  font:12px/1.5 var(--mono);color:#6a6255;
  background:#f7f5ef;border:1px solid #ece8de;border-radius:7px;
  overflow-wrap:anywhere;
}

.pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.panel{margin:0;min-width:0}
.panel-hd{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:8px}
.pl{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:680;letter-spacing:.01em}
.pl .dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto}
.panel.fill .pl{color:var(--fill-deep)}
.panel.fill .dot{background:var(--fill)}
.panel.outline .pl{color:var(--out-deep)}
.panel.outline .dot{background:var(--out)}
.ph-note{font:11px/1.4 var(--mono);color:var(--faint);text-align:right;white-space:nowrap}

.frame{
  position:relative;border-radius:12px;overflow:hidden;line-height:0;
  background:#0b0d10;border:1px solid #e4dfd4;
}
.frame > img{width:100%;height:auto;display:block}
.zoomable{cursor:zoom-in}
.inset{
  position:absolute;right:10px;top:10px;width:30%;
  border:2px solid rgba(255,255,255,.94);border-radius:9px;overflow:hidden;
  box-shadow:0 8px 22px rgba(0,0,0,.4);background:#000;
}
.inset img{width:100%;height:auto;display:block}
.inset > span{
  position:absolute;left:6px;bottom:6px;
  font:10px/1 var(--mono);letter-spacing:.02em;color:#fff;
  background:rgba(0,0,0,.62);border-radius:4px;padding:3px 5px;
}
.panel figcaption{margin-top:8px;font-size:12.5px;line-height:1.55;color:#616874;min-height:39px}

.take{
  display:flex;gap:12px;align-items:flex-start;
  margin:14px 0 0;padding:11px 14px;border-radius:10px;background:#f7f5ef;
  font-size:13.5px;line-height:1.6;color:#343a43;
}
.t-k{
  flex:0 0 auto;font:700 10px/1 var(--mono);letter-spacing:.12em;color:#8d8577;
  border:1px solid #ddd7c9;border-radius:4px;padding:5px 6px;background:#fff;
  transform:translateY(2px);
}
.case-src{margin:10px 2px 0;font:10.8px/1.55 var(--mono);color:#a5adaf;overflow-wrap:anywhere}

/* ---------------- mechanism ---------------- */
.lanes{display:grid;gap:14px;margin-top:24px}
.lane{
  display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:center;
  padding:16px 18px;border-radius:18px;background:var(--paper);border:1px solid var(--line);
}
.lane-h{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.badge{font:700 11px/1 var(--mono);letter-spacing:.06em;padding:6px 10px;border-radius:999px;color:#fff}
.badge-fill{background:var(--fill)}
.badge-out{background:var(--out)}
.lane-sub{font:11px/1.55 var(--mono);color:var(--faint)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:0;padding:0;list-style:none}
.step{
  position:relative;min-width:0;padding:10px 12px;border-radius:10px;
  background:#faf9f5;border:1px solid #efebe2;
}
.step b{display:block;font-size:13px;line-height:1.4;font-weight:650;color:var(--ink)}
.step span{display:block;margin-top:3px;font-size:11.5px;line-height:1.5;color:#6e7580}
.step::after{
  content:"→";position:absolute;right:-13px;top:50%;transform:translateY(-50%);
  color:#c6c0b3;font-size:13px;line-height:1;
}
.step:last-child::after{content:none}
.lane.fill .step:nth-child(2){background:var(--fill-bg);border-color:#f4d5cf}
.lane.outline .step:nth-child(2){background:var(--out-bg);border-color:#cdeadb}
.step.result{border-color:#d9d3c6;background:#f3f1ea}
.step.result b{color:var(--ink)}

.callout{
  margin-top:18px;padding:22px 24px;border-radius:18px;
  background:#0e2a22;color:#eaf5ef;
  display:grid;grid-template-columns:1.05fr 1.25fr;gap:22px;align-items:center;
}
.callout-big{margin:0 0 6px;font-size:22px;line-height:1.35;font-weight:700;letter-spacing:-.01em;color:#fff}
.callout-sub{margin:0;font-size:13.5px;line-height:1.65;color:#b9d3c7}
.callout-sub strong{color:#fff}
.callout-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.callout-stats > div{
  padding:10px 12px;border-radius:10px;background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.09);min-width:0;
}
.callout-stats b{display:block;font:700 16px/1.3 var(--mono);letter-spacing:-.02em;color:#fff;white-space:nowrap}
.callout-stats span{display:block;margin-top:4px;font-size:11px;line-height:1.5;color:#a9c5b8}
.fineprint{margin:14px 0 0;font-size:12.5px;line-height:1.65;color:#7a818c;max-width:940px}

/* ---------------- metrics table ---------------- */
.tablewrap{
  margin-top:22px;background:var(--paper);border:1px solid var(--line);
  border-radius:18px;overflow:hidden;box-shadow:var(--shadow);
}
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{
  padding:13px 20px;text-align:left;
  font:600 10.5px/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#8b8375;
  background:#faf8f3;border-bottom:1px solid var(--line);
}
.tbl th.num{text-align:right}
.tbl td{padding:14px 20px;border-bottom:1px solid #f0ede6;vertical-align:top}
.tbl tr:last-child td{border-bottom:0}
.tbl td.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.tbl td.metric b{display:block;font-weight:640;font-size:14.5px;line-height:1.45}
.tbl td.metric .src{display:block;margin-top:3px;font:10.5px/1.5 var(--mono);color:#a8a294;overflow-wrap:anywhere}
.fillv{color:#9c968a}
.outv{color:var(--out-deep);font-weight:700}
.delta{font-weight:650;font-variant-numeric:tabular-nums}
.delta.good{color:var(--out-deep)}
.delta.neg{color:var(--amber)}
.delta.flat{color:#8d8678}
.notes{margin-top:14px;padding:14px 18px;border-left:3px solid var(--line-2);background:#f9f8f3;border-radius:0 10px 10px 0}
.notes p{margin:4px 0;font-size:12.5px;line-height:1.7;color:#5d6470}
.notes b{color:#333941}
.notes code{font-size:11px}

/* ---------------- side effects ---------------- */
.fix-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:16px;margin-top:22px}
.bigpair{
  display:flex;align-items:center;justify-content:center;gap:18px;
  padding:24px 20px;background:var(--paper);border:1px solid var(--line);border-radius:18px;
}
.bp-col{display:flex;flex-direction:column;align-items:center;gap:6px;min-width:0}
.bp-n{font:700 clamp(34px,4vw,48px)/1 var(--sans);letter-spacing:-.035em;font-variant-numeric:tabular-nums}
.fillc{color:var(--fill)}
.outc{color:var(--out)}
.bp-l{font:11px/1.4 var(--mono);color:var(--faint);text-align:center}
.bp-arrow{color:#c9c3b6;font-size:22px;line-height:1;transform:translateY(-8px)}
.mini-table{display:grid;gap:10px;align-content:center}
.mt-row{
  display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;
  padding:12px 14px;background:var(--paper);border:1px solid var(--line);border-radius:10px;
  font-size:12.5px;color:#4e5560;
}
.mt-name em{font-style:normal;font-size:10.5px;color:#a08a5f;background:var(--amber-bg);border:1px solid #f0e2c4;border-radius:4px;padding:1px 5px;margin-left:6px;white-space:nowrap}
.mt-vals{display:inline-flex;align-items:baseline;gap:7px;white-space:nowrap}
.mt-vals i{font-style:normal;color:#c9c3b6;font-size:11px}
.mt-vals b{font:650 14px/1 var(--mono);color:#9c968a}
.mt-vals b.outc{color:var(--out-deep)}
.quotes{display:grid;grid-template-columns:1.25fr 1fr;gap:14px;margin-top:14px;align-items:start}
.qbox{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.qbox-fill{border-left:3px solid var(--fill)}
.qbox-out{border-left:3px solid var(--out)}
.qbox-h{margin:0 0 8px;font:650 11px/1.4 var(--mono);letter-spacing:.06em;color:#8b8375;text-transform:uppercase}
.q{
  margin:7px 0;padding:8px 10px;border-radius:7px;background:#faf8f4;
  font:12.5px/1.6 var(--mono);color:#3a4049;overflow-wrap:anywhere;
}
.qbox-src{margin:10px 0 0;font-size:11.5px;line-height:1.6;color:#7d848e}

/* ---------------- limits ---------------- */
.limit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.limit{
  padding:18px 18px 16px;background:var(--paper);border:1px solid var(--line);
  border-radius:16px;border-top:3px solid #d9b26a;
}
.limit-no{margin:0 0 8px;font:700 10.5px/1 var(--mono);letter-spacing:.12em;color:#b07c1e}
.limit h3{margin:0 0 8px;font-size:15.5px;line-height:1.4;font-weight:680}
.limit p{margin:0;font-size:12.8px;line-height:1.72;color:#565d68}
.limit b{color:#2d333c;font-weight:650}

/* ---------------- code ---------------- */
.code{margin-top:14px;background:#14171d;border-radius:14px;overflow:hidden;border:1px solid #242a33}
.code-hd{display:flex;align-items:center;justify-content:space-between;padding:9px 14px;border-bottom:1px solid #262c36}
.code-hd span{font:11px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:#8b93a0}
.copy{
  font:11px/1 var(--mono);color:#cfd6e2;background:#222833;border:1px solid #333b48;
  border-radius:6px;padding:5px 9px;cursor:pointer;transition:background .15s;
}
.copy:hover{background:#2c3440}
.copy.ok{color:#7ee2b8;border-color:#2f5c4a}
.code pre{margin:0;padding:14px 16px;overflow-x:auto;line-height:1.75}
.code code{background:none;padding:0;font-size:12.5px;color:#d7dee9;white-space:pre}
.code .tok{color:#ff8f85}
.code .cm{color:#6d7787}

/* ---------------- footer ---------------- */
.foot{margin-top:46px;padding:26px 0 60px;border-top:1px solid var(--line)}
.foot-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:34px}
.foot-h{margin:0 0 10px;font:600 10.5px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:#9a9283}
.paths{margin:0;padding:0;list-style:none;display:grid;gap:6px}
.paths li{display:grid;grid-template-columns:88px 1fr;gap:8px;align-items:baseline;min-width:0}
.paths span{font-size:11px;color:#8a919c;white-space:nowrap}
.paths code{font-size:10.5px;color:#5f6672;background:#efece5;overflow-wrap:anywhere}
.foot-p{margin:0 0 10px;font-size:12px;line-height:1.7;color:#7a818c}

/* ---------------- lightbox ---------------- */
.lb{
  position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;
  padding:32px;background:rgba(10,12,16,.9);
}
.lb.open{display:flex}
.lb img{max-width:min(96vw,1200px);max-height:86vh;width:auto;height:auto;border-radius:8px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lb-close{
  position:absolute;top:16px;right:20px;width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;
  font:300 24px/1 var(--sans);cursor:pointer;
}
.lb-close:hover{background:rgba(255,255,255,.16)}

/* ---------------- responsive ---------------- */
@media (max-width:1080px){
  .callout{grid-template-columns:1fr;gap:16px}
  .limit-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:980px){
  .hero-in{padding-top:46px;padding-bottom:38px}
  .sec{padding-top:48px}
  .lane{grid-template-columns:104px 1fr}
  .steps{grid-template-columns:1fr 1fr;gap:10px}
  .step::after{content:none}
  .fix-grid,.quotes{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:24px}
}
@media (max-width:820px){
  .pair{grid-template-columns:1fr}
  .panel figcaption{min-height:0}
  .hero-stats{grid-template-columns:1fr}
  .inset{width:32%}
}
@media (max-width:760px){
  .wrap{padding:0 18px}
  .hero::before{width:320px;height:320px;right:-140px;top:-120px}
  .hero::after{display:none}
  h1{font-size:34px}
  .deck{font-size:15.5px}
  .stat{padding:16px 16px 14px}
  .stat-n{font-size:40px;gap:10px}
  .case{padding:18px 14px 14px;border-radius:16px}
  .case-hd h3{font-size:17.5px}
  .case-lab{font-size:11px}
  .lane{grid-template-columns:1fr;gap:10px;padding:14px}
  .lane-h{flex-direction:row;align-items:center}
  .steps{grid-template-columns:1fr}
  .step{padding:9px 11px}
  .callout{padding:18px}
  .callout-stats{grid-template-columns:1fr}
  .callout-big{font-size:19px}
  .limit-grid{grid-template-columns:1fr}
  .bigpair{gap:12px;padding:18px 14px}
  .mt-row{grid-template-columns:1fr auto;gap:8px;font-size:12px}
  .paths li{grid-template-columns:1fr}
  .paths span{padding-top:2px}

  /* table -> cards */
  .tablewrap{border:0;background:none;box-shadow:none;overflow:visible}
  .tbl,.tbl tbody,.tbl tr,.tbl td{display:block;width:100%}
  .tbl thead{display:none}
  .tbl tr{
    background:var(--paper);border:1px solid var(--line);border-radius:14px;
    padding:12px 14px;margin-bottom:10px;
  }
  .tbl td{border:0;padding:3px 0}
  .tbl td.metric{padding-bottom:6px}
  .tbl td.num{display:flex;align-items:baseline;justify-content:space-between;gap:14px;text-align:right}
  .tbl td.num::before{
    content:attr(data-label);
    font:600 10.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#9a9283;
  }
  .delta{white-space:normal;text-align:right}
  .code pre{font-size:11.5px}
}
@media (max-width:460px){
  .stat-n{font-size:34px}
  .inset{width:34%}
  .t-k{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none !important}
}