:root{
  --bg:#f6f4f0; --card:#fff; --ink:#17120e; --muted:#756c62; --line:#e7e1d7;
  --accent:#ff5a1f; --accent-soft:#fff0e9; --teal:#0d7a63; --teal-soft:#e8f4f0;
  --bad:#cf3a2b; --bad-soft:#fdecea; --gold:#a86400; --gold-soft:#fdf3e2;
  --r:18px; --shadow:0 1px 2px rgba(23,18,14,.04),0 8px 24px -12px rgba(23,18,14,.18);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Inter","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.55;font-size:15px}
img{display:block}
a{color:inherit}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- hero ---------- */
.hero{position:relative;background:#14100c;color:#fff;overflow:hidden;padding:38px 0 30px}
.hero:before{content:"";position:absolute;inset:-30% -10% auto -10%;height:90%;background:radial-gradient(55% 60% at 72% 10%,rgba(255,90,31,.30),transparent 70%),radial-gradient(40% 50% at 10% 0%,rgba(13,122,99,.18),transparent 70%);pointer-events:none}
.hero .wrap{position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#ffb08c;border:1px solid rgba(255,176,140,.35);padding:5px 10px;border-radius:999px}
.hero h1{font-size:clamp(30px,7vw,52px);line-height:1.08;letter-spacing:-.03em;margin:18px 0 12px;font-weight:800}
.hero h1 em{font-style:normal;color:#ff7a42}
.hero .sub{color:#c9c2b8;font-size:14px;margin:0 0 18px;max-width:620px}
.verdict{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:13px 15px;font-size:14px;color:#eee7dd;max-width:720px}
.verdict b{color:#fff}
.verdict .hl{color:#ff9a6b}
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:20px}
@media(min-width:700px){.hero-stats{grid-template-columns:repeat(4,1fr)}}
.hs{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.10);border-radius:14px;padding:12px 13px}
.hs .n{font-size:clamp(20px,4.6vw,26px);font-weight:800;letter-spacing:-.02em;line-height:1.15}
.hs .n small{font-size:12px;font-weight:600;color:#bdb5aa;margin-left:2px}
.hs .l{font-size:11px;color:#a89f93;margin-top:2px;letter-spacing:.02em}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:30;background:rgba(246,244,240,.93);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav::after{content:"";position:absolute;right:0;top:0;bottom:0;width:26px;background:linear-gradient(90deg,rgba(246,244,240,0),rgba(246,244,240,.96));pointer-events:none}
.nav .wrap{display:flex;gap:4px;overflow-x:auto;padding:9px 30px 9px 16px;scrollbar-width:none}
.nav .wrap::-webkit-scrollbar{display:none}
.nav a{flex:0 0 auto;text-decoration:none;font-size:13px;color:var(--muted);padding:7px 12px;border-radius:999px;transition:.2s}
.nav a.on{background:var(--ink);color:#fff}

/* ---------- sections ---------- */
section{padding:34px 0 6px;scroll-margin-top:62px}
main{padding-bottom:48px}
.sec-head{display:flex;align-items:baseline;gap:10px;margin-bottom:6px}
.sec-head .no{font:700 12px/1 ui-monospace,Menlo,Consolas,monospace;color:var(--accent);letter-spacing:.08em}
.sec-head h2{font-size:clamp(21px,4.6vw,27px);margin:0;letter-spacing:-.02em}
.sec-lede{color:var(--muted);font-size:14px;margin:6px 0 18px;max-width:760px}
.sec-lede b{color:var(--ink)}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;box-shadow:var(--shadow)}
.card + .card{margin-top:12px}
.card h3{margin:0 0 4px;font-size:15px;letter-spacing:-.01em}
.card .hint{color:var(--muted);font-size:12px;margin:0 0 12px}

.grid2{display:grid;gap:12px}
@media(min-width:760px){.grid2{grid-template-columns:1fr 1fr}}
.grid3{display:grid;gap:12px}
@media(min-width:760px){.grid3{grid-template-columns:repeat(3,1fr)}}

/* kpi */
.kpis{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(min-width:760px){.kpis{grid-template-columns:repeat(4,1fr)}}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:var(--shadow)}
.kpi .n{font-size:clamp(20px,4.4vw,24px);font-weight:800;letter-spacing:-.025em;line-height:1.15}
.kpi .n small{font-size:11px;font-weight:600;color:var(--muted)}
.kpi .l{font-size:11px;color:var(--muted);margin-top:3px}
.kpi.acc{background:var(--accent-soft);border-color:#ffd9c7}

/* bars */
.band{margin-bottom:13px}
.band:last-child{margin-bottom:0}
.band .top{display:flex;justify-content:space-between;font-size:12px;margin-bottom:5px}
.band .top b{font-size:13px}
.band .top span{color:var(--muted)}
.track{height:7px;background:#efeae1;border-radius:99px;overflow:hidden;margin-bottom:4px;position:relative}
.track::after{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:rgba(23,18,14,.10)}
.track:last-child{margin-bottom:0}
.track i{display:block;height:100%;border-radius:99px}
.fill-o{background:linear-gradient(90deg,#ff7a42,#ff5a1f)}
.fill-t{background:linear-gradient(90deg,#2aa68c,#0d7a63)}
.legend{display:flex;gap:14px;font-size:11px;color:var(--muted);margin-bottom:14px}
.legend i{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:5px;vertical-align:1px}
.legend .o{background:var(--accent)}
.legend .t{background:var(--teal)}

/* pareto */
.pareto{width:100%;height:auto;display:block}
.pareto text{font-size:9px;fill:#8b8176;font-family:inherit}

/* concentration */
.stack{margin:4px 0 2px}
.srow{display:grid;grid-template-columns:34px 1fr;gap:8px;align-items:center;margin-bottom:7px}
.srow>span{font-size:10px;color:var(--muted)}
.sbar{display:flex;height:20px;border-radius:6px;overflow:hidden;background:#f1ece4}
.sbar i{display:block;height:100%}
.s1{background:#ff5a1f}.s2{background:#ff9d70}.s3{background:#ffd6c4}
.slegend{display:grid;gap:6px;margin-top:10px;font-size:11px;color:var(--muted)}
.slegend div{display:flex;align-items:center;gap:6px}
.slegend i{width:8px;height:8px;border-radius:2px;flex:0 0 auto}
.slegend b{color:var(--ink)}


/* break-even table */
.be-cap{font-size:10px;color:var(--muted);margin:2px 0 8px;line-height:1.5}
.be-tbl{width:100%;min-width:0;border-collapse:collapse;font-size:13px}
.be-tbl th{font-size:10px;color:var(--muted);font-weight:600;text-align:right;padding:5px 6px;border-bottom:1px solid var(--line)}
.be-tbl th:first-child,.be-tbl td:first-child{text-align:left}
.be-tbl td{padding:9px 6px;text-align:right;border-bottom:1px dashed #eee8df;font-variant-numeric:tabular-nums}
.be-tbl tr:last-child td{border-bottom:0}
.be-tbl tr.on td{background:#fff5ef;font-weight:800}
.be-tbl tr.on td:first-child{color:var(--accent)}

/* age table */
.age-tbl{width:100%;min-width:0;border-collapse:collapse;font-size:12px}
.age-tbl th{font-size:10px;font-weight:600;color:var(--muted);text-align:right;padding:5px 4px;border-bottom:1px solid var(--line)}
.age-tbl th:first-child,.age-tbl td:first-child{text-align:left}
.age-tbl td{padding:8px 4px;text-align:right;border-bottom:1px dashed #eee8df;font-variant-numeric:tabular-nums}
.age-tbl tr:last-child td{border-bottom:0}
.age-tbl .per{font-weight:800}
.age-tbl .per.hi{color:var(--accent)}

/* age */
.age-row{display:grid;grid-template-columns:66px 1fr auto;gap:10px;align-items:center;margin-bottom:10px}
.age-row:last-child{margin-bottom:0}
.age-row .lab{font-size:12px;color:var(--muted)}
.age-row .tr{height:22px;background:#f1ece4;border-radius:6px;overflow:hidden}
.age-row .tr i{display:block;height:100%;background:linear-gradient(90deg,#ffb18f,#ff5a1f);border-radius:6px}
.age-row .val{font-size:12px;font-weight:700;min-width:52px;text-align:right}
.age-row .val small{display:block;font-weight:400;color:var(--muted);font-size:10px}

/* callout */
.callout{display:flex;gap:10px;background:var(--gold-soft);border:1px solid #f0dcb5;border-radius:14px;padding:12px 14px;font-size:13px;color:#5c431a}
.callout .ic{flex:0 0 auto;font-size:16px;line-height:1.2}
.callout b{color:#3d2c0e}

/* ---------- top list ---------- */
@media(min-width:760px){#topList{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:start}}
.top-item{display:grid;grid-template-columns:84px 1fr;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:10px;margin-bottom:10px;box-shadow:var(--shadow);position:relative}
@media(min-width:760px){.top-item{margin-bottom:0}}
.top-item .thumb{position:relative;border-radius:11px;overflow:hidden;background:#efe9e1}
.top-item .thumb img{width:84px;height:92px;object-fit:cover}
.top-item .rank{position:absolute;left:5px;top:5px;background:rgba(20,16,12,.82);color:#fff;font-size:10px;font-weight:700;padding:2px 6px;border-radius:6px;letter-spacing:.03em}
.top-item .cat{font-size:10px;font-weight:700;color:var(--accent);letter-spacing:.06em;margin-bottom:1px}
.top-item .name{font-weight:700;font-size:14px;line-height:1.3;letter-spacing:-.01em}
.top-item .pace{font-size:10px;color:var(--muted);margin-top:6px}
.top-item .pace b.up{color:var(--good)}
.top-item .pace b.down{color:var(--bad)}
.top-item .pace span{margin-left:6px;color:#a79d92;font-size:9px}
.bd-row.target{border-top:1px dashed #d7cfc3;margin-top:4px;padding-top:8px;font-weight:800;color:var(--ink)}
.top-item .meta{font-size:11px;color:var(--muted);margin-top:3px}
.top-item .stats{display:flex;gap:12px;margin-top:7px;flex-wrap:wrap}
.top-item .stats div{font-size:10px;color:var(--muted);line-height:1.25}
.top-item .stats b{display:block;font-size:14px;color:var(--ink);font-variant-numeric:tabular-nums}
.top-item .bar{height:4px;background:#f0ebe3;border-radius:99px;margin-top:8px;overflow:hidden}
.top-item .bar i{display:block;height:100%;background:linear-gradient(90deg,#ff8a5c,#ff5a1f);border-radius:99px}
.est{display:inline-block;font-size:9px;font-weight:700;color:var(--gold);background:var(--gold-soft);border:1px solid #eed9b0;padding:1px 5px;border-radius:5px;margin-left:5px;vertical-align:1px}

/* ---------- table ---------- */
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:14px;background:#fff}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:12px}
th,td{padding:9px 10px;text-align:right;white-space:nowrap;border-bottom:1px solid #f0ebe3}
th{font-weight:600;color:var(--muted);font-size:11px;background:#faf8f4;position:sticky;top:0}
td:first-child,th:first-child{text-align:left;white-space:normal;min-width:120px}
tr:last-child td{border-bottom:0}
.pos{color:var(--good);font-weight:700}
.neg{color:var(--bad);font-weight:700}
.chip{display:inline-block;padding:2px 7px;border-radius:6px;font-size:11px;font-weight:700}
.chip.g{background:var(--teal-soft);color:var(--teal)}
.chip.r{background:var(--bad-soft);color:var(--bad)}
.chip.a{background:var(--gold-soft);color:var(--gold)}

/* ---------- calculator ---------- */
.calc{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden}
.calc-head{padding:14px 16px;background:linear-gradient(180deg,#fff8f4,#fff);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:10px}
.calc-head h3{margin:0;font-size:15px}
.calc-body{padding:14px 16px 18px}
@media(min-width:820px){
  .calc-body{display:grid;grid-template-columns:1fr 1fr;gap:0 26px;align-items:start}
}
.calc-col{min-width:0}
.seg{display:flex;background:#efeae2;border-radius:11px;padding:3px;margin-bottom:12px}
.seg button{flex:1;border:0;background:transparent;padding:8px 6px;border-radius:8px;font-size:12px;font-weight:700;color:var(--muted);font-family:inherit;cursor:pointer}
.seg button.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.13)}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.field{display:flex;flex-direction:column;gap:4px}
.field label{font-size:11px;color:var(--muted)}
.field .in{display:flex;align-items:center;background:#faf8f4;border:1px solid var(--line);border-radius:10px;padding:0 10px}
.field .in span{font-size:11px;color:var(--muted);margin-right:4px}
.field input{border:0;background:transparent;font:700 15px/1 inherit;color:var(--ink);width:100%;padding:9px 0;outline:none;font-variant-numeric:tabular-nums}
.field input::-webkit-outer-spin-button,.field input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.result{margin-top:14px;border-radius:14px;padding:14px;background:#14100c;color:#fff;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.result .k{font-size:10px;color:#a89f93;letter-spacing:.04em}
.result .v{font-size:26px;font-weight:800;letter-spacing:-.02em;line-height:1.15}
.result .v small{font-size:12px;font-weight:600;color:#bdb5aa}
.result .v.bad{color:#ff8f7d}
.result .v.good{color:#6ee0bd}
.breakdown{margin-top:12px;font-size:12px}
.bd-row{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:6px 0;border-bottom:1px dashed #eee8df}
.bd-row:last-child{border-bottom:0;font-weight:800}
.bd-row span:first-child{color:var(--muted);flex:0 1 auto}
.bd-row span:last-child{text-align:right;flex:0 0 auto;max-width:62%}
.bd-row.minus span:last-child{color:var(--bad)}
.bd-row.plus span:last-child{color:var(--good)}

/* pills */
.pills{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 2px}
.pills span{background:#fff;border:1px solid #f2dccb;border-radius:999px;padding:5px 10px;font-size:11px;color:#7a4a2c;font-weight:600}

/* recommendation */
.rec-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
.rec{background:#fff8f4;border:1px solid #ffdcc9;border-radius:12px;padding:12px 14px}
.rec span{display:block;font-size:11px;color:var(--muted)}
.rec b{display:block;font-size:26px;letter-spacing:-.02em;margin-top:2px;font-variant-numeric:tabular-nums}

/* key-value grid */
.kvwrap{display:grid;gap:0 18px}
@media(min-width:700px){.kvwrap{grid-template-columns:1fr 1fr}}
.kv{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px dashed #eee8df;font-size:13px}
.kv span{color:var(--muted);flex:0 0 auto}
.kv b{text-align:right;font-weight:700}

/* 20 测品 list */
.exrow{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:9px 0;border-bottom:1px dashed #eee8df}
.exrow:last-child{border-bottom:0}
.exrow .nm{font-size:13px;font-weight:600;line-height:1.25}
.exrow .sub{font-size:10px;color:var(--muted);margin-top:1px}
.exrow .chips{display:flex;gap:5px;flex:0 0 auto}
.chip.air{background:#f6f1e9;color:#7a5a2e}
.chip.sea{background:var(--teal-soft);color:var(--teal)}
.chip.no{background:var(--bad-soft);color:var(--bad)}

/* 模式净利对比 */
.compare{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.cmode{border:1px solid var(--line);border-radius:12px;padding:11px 8px;text-align:center;background:#fff}
.cmode.best{border-color:#ffb795;background:#fff8f4}
.cmode .n{font-size:12px;font-weight:700}
.cmode .p{font-size:20px;font-weight:800;letter-spacing:-.02em;margin-top:4px;font-variant-numeric:tabular-nums}
.cmode .m{font-size:11px;font-weight:700;margin-top:1px}
.cmode .d{font-size:9px;color:var(--muted);margin-top:4px;line-height:1.35}

/* heatmap */
.heat{display:grid;grid-template-columns:44px repeat(8,1fr);gap:3px;font-size:10px;max-width:820px}
.heat .hh{color:var(--muted);text-align:center;font-weight:600;padding-bottom:2px}
.heat .hw{color:var(--muted);text-align:right;padding-right:4px;line-height:1.9}
.heat .cell{border-radius:6px;padding:7px 2px;text-align:center;font-weight:700;font-variant-numeric:tabular-nums;cursor:pointer;transition:transform .12s}
.heat .cell:active{transform:scale(.94)}
@media(max-width:380px){
  .heat{grid-template-columns:34px repeat(8,1fr);gap:2px;font-size:9px}
  .heat .cell{padding:5px 0;border-radius:5px}
  .heat .hh{font-size:9px}
  .heat .hw{font-size:9px}
}

/* model cards */
.mode{background:#fff;border:1px solid var(--line);border-radius:16px;padding:15px;box-shadow:var(--shadow)}
.mode.best{border:2px solid var(--accent);position:relative}
.mode .tag{position:absolute;top:-10px;right:12px;background:var(--accent);color:#fff;font-size:10px;font-weight:700;padding:3px 8px;border-radius:999px}
.mode h4{margin:0 0 2px;font-size:15px}
.mode .sum{font-size:12px;color:var(--muted);margin:0 0 10px}
.mode ul{margin:0;padding:0;list-style:none;font-size:12px}
.mode li{display:flex;justify-content:space-between;gap:8px;padding:5px 0;border-bottom:1px dashed #f0ebe3}
.mode li:last-child{border-bottom:0}
.mode li span:first-child{color:var(--muted)}
.mode li b{text-align:right}

/* verdict */
.checks{display:grid;gap:10px}
.check{display:grid;grid-template-columns:26px 1fr;gap:10px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px}
.check .n{width:26px;height:26px;border-radius:8px;background:var(--accent-soft);color:var(--accent);font-weight:800;font-size:12px;display:flex;align-items:center;justify-content:center}
.check b{display:block;font-size:13px}
.check p{margin:2px 0 0;font-size:12px;color:var(--muted)}

details{border-top:1px solid var(--line);margin-top:10px;padding-top:10px}
summary{cursor:pointer;font-size:13px;font-weight:700}
details p,details li{font-size:12px;color:var(--muted)}

footer{padding:34px 0 44px;color:#8b8176;font-size:11px;line-height:1.7}
footer b{color:#6b6258}
footer .dl{display:inline-flex;align-items:center;gap:6px;text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:12px;font-weight:700;color:var(--ink);box-shadow:var(--shadow)}
footer .dl:hover{border-color:#ffb795;color:var(--accent)}
.divider{height:1px;background:var(--line);margin:8px 0 0}

@media(max-width:350px){.hero h1{font-size:26px}}

@media print{
  .nav{display:none!important}
  body{background:#fff}
  .hero{padding:18px 0 14px}
  .hero h1{font-size:38px}
  .hero .sub{display:none}
  section{padding:14px 0 0}
  .wrap{max-width:100%}
  .card,.kpi,.top-item,.check,.rec,.cmode,.mode,.calc{break-inside:avoid;page-break-inside:avoid}
  .sec-head{break-after:avoid;page-break-after:avoid}
  .top-item{box-shadow:none;padding:8px;gap:8px;margin-bottom:6px}
  .top-item .thumb img{width:64px;height:70px}
  .top-item .name{font-size:12px}
  .top-item .cat,.top-item .pace,.top-item .bar{display:none}
  .top-item .stats b{font-size:12px}
  .top-item .meta{font-size:9px}
  .kpi .n{font-size:18px}
  .top-item .stats{gap:8px;margin-top:4px}
}