:root{
  --bg:#F2F5F5; --surface:#FFFFFF; --surface-2:#E7EDED; --surface-3:#DCE5E5;
  --ink:#0F2A31; --ink-2:#44585E; --muted:#6F8287; --line:#D2DCDD; --line-strong:#B5C3C5;
  --accent:#0A6E6A; --accent-ink:#FFFFFF; --accent-soft:#D5EBE8;
  --s-brand:#008F80; --s-comp:#7B61C9;
  --ok:#2E7A4E; --ok-soft:#DDEFE3; --watch:#9A6300; --watch-soft:#F6E9CF; --bad:#B83A2B; --bad-soft:#F7DDD8;
  --paper:#FBFCFC;
  --f-display:"Noto Serif SC","Songti SC","STSong",serif;
  --f-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --f-mono:"IBM Plex Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --r:10px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --bg:#0C1618; --surface:#132124; --surface-2:#1A2B2E; --surface-3:#223639;
    --ink:#E4EEEE; --ink-2:#A8BABD; --muted:#7F9396; --line:#27393C; --line-strong:#3A5053;
    --accent:#3DB5AB; --accent-ink:#06201E; --accent-soft:#163A3A;
    --s-brand:#2FA89F; --s-comp:#8C72DE;
    --ok:#62C08C; --ok-soft:#173327; --watch:#E2AA4B; --watch-soft:#3A2D14; --bad:#F07A66; --bad-soft:#40201B;
    --paper:#162528;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0C1618; --surface:#132124; --surface-2:#1A2B2E; --surface-3:#223639;
  --ink:#E4EEEE; --ink-2:#A8BABD; --muted:#7F9396; --line:#27393C; --line-strong:#3A5053;
  --accent:#3DB5AB; --accent-ink:#06201E; --accent-soft:#163A3A;
  --s-brand:#2FA89F; --s-comp:#8C72DE;
  --ok:#62C08C; --ok-soft:#173327; --watch:#E2AA4B; --watch-soft:#3A2D14; --bad:#F07A66; --bad-soft:#40201B;
  --paper:#162528;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
h1,h2,h3{text-wrap:balance;margin:0}
p{margin:0}
.wrap{max-width:1180px;margin:0 auto;padding-inline:20px}
@media (max-width:480px){.wrap{padding-inline:16px}}
.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.eyebrow{font-family:var(--f-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:20px;height:60px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);text-decoration:none;white-space:nowrap}
.logo svg{flex:none}
.logo small{font-weight:400;color:var(--muted);font-size:13px}
.nav-links{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;flex:1;min-width:0}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{color:var(--ink-2);text-decoration:none;font-size:14px;padding:6px 10px;border-radius:6px;white-space:nowrap}
.nav-links a:hover{background:var(--surface-2);color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:500;font-size:15px;border-radius:8px;padding:10px 18px;border:1px solid transparent;cursor:pointer;text-decoration:none;white-space:nowrap;transition:background .15s,border-color .15s}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{background:var(--surface-2)}
.btn-sm{padding:7px 14px;font-size:14px}
@media (max-width:720px){.logo small{display:none}.nav .btn{display:none}}

/* hero */
.hero{padding-block:56px 64px}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
@media (max-width:920px){.hero .wrap{grid-template-columns:1fr;gap:36px}}
.hero h1{font-family:var(--f-display);font-weight:900;font-size:clamp(34px,5.2vw,58px);line-height:1.18;letter-spacing:-.01em;margin-block:14px 18px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lede{font-size:17px;color:var(--ink-2);max-width:34em}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero .facts{display:flex;gap:28px;flex-wrap:wrap;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
.hero .facts div{display:flex;flex-direction:column}
.hero .facts b{font-family:var(--f-mono);font-size:26px;font-weight:600;line-height:1.2}
.hero .facts span{font-size:13px;color:var(--muted)}

/* lab sheet */
.sheet{background:var(--paper);border:1px solid var(--line-strong);border-radius:6px;box-shadow:0 1px 0 var(--line),0 18px 40px -24px color-mix(in srgb,var(--ink) 40%,transparent);font-size:13px;overflow:hidden}
.sheet-head{padding:14px 18px 10px;border-bottom:2px solid var(--ink);display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap}
.sheet-head h3{font-family:var(--f-display);font-size:17px;font-weight:600}
.sheet-head .mono{font-size:11px;color:var(--muted);text-align:right;line-height:1.5}
.sheet-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:4px 12px;padding:8px 18px;border-bottom:1px dashed var(--line-strong);color:var(--ink-2);font-size:12px}
.sheet-meta b{color:var(--ink);font-weight:500}
.sheet-cols,.sheet-row{display:grid;grid-template-columns:56px 1fr 90px 44px 58px;gap:8px;align-items:center;padding:0 18px}
.sheet-cols{font-size:11px;color:var(--muted);padding-block:7px;border-bottom:1px solid var(--line)}
.sheet-row{padding-block:5px;border-bottom:1px solid color-mix(in srgb,var(--line) 60%,transparent)}
.sheet-row .code{font-family:var(--f-mono);font-size:11px;color:var(--muted)}
.sheet-row .nm{font-weight:500}
.sheet-row .nm i{font-style:normal;font-size:11px;color:var(--muted);margin-left:6px;font-weight:400}
.meter{position:relative;height:6px;background:var(--surface-3);border-radius:3px}
.meter span{position:absolute;left:0;top:0;bottom:0;border-radius:3px;background:var(--s-brand)}
.meter::after{content:"";position:absolute;left:70%;top:-3px;bottom:-3px;width:1.5px;background:var(--ink-2);opacity:.55}
.sheet-row .val{font-family:var(--f-mono);font-weight:600;text-align:right}
.flag{font-family:var(--f-mono);font-size:11px;font-weight:600;display:inline-flex;align-items:center;gap:3px;padding:1px 6px;border-radius:4px;justify-self:start}
.flag.ok{color:var(--ok);background:var(--ok-soft)}
.flag.watch{color:var(--watch);background:var(--watch-soft)}
.flag.bad{color:var(--bad);background:var(--bad-soft)}
.layer-sep{padding:6px 18px 4px;font-size:11px;color:var(--accent);font-family:var(--f-mono);letter-spacing:.08em;background:var(--surface-2)}
.sheet-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 18px;border-top:2px solid var(--ink);flex-wrap:wrap}
.sheet-foot .idx{display:flex;align-items:baseline;gap:10px}
.sheet-foot .idx b{font-family:var(--f-mono);font-size:30px;font-weight:600;line-height:1}
.sheet-foot small{color:var(--muted);font-size:11px}
@media (max-width:480px){
  .sheet-cols,.sheet-row{grid-template-columns:40px 1fr 60px 34px 52px;gap:6px;padding-inline:12px}
  .sheet-head,.sheet-meta,.sheet-foot,.layer-sep{padding-inline:12px}
  .sheet-meta{grid-template-columns:1fr 1fr}
  .sheet-row .nm i{display:none}
}

/* sections */
section.block{padding-block:72px;border-top:1px solid var(--line)}
.sec-head{display:grid;grid-template-columns:1fr 1fr;gap:24px 48px;align-items:end;margin-bottom:36px}
@media (max-width:820px){.sec-head{grid-template-columns:1fr}}
.sec-head h2{font-family:var(--f-display);font-weight:900;font-size:clamp(26px,3.4vw,38px);line-height:1.25;margin-top:8px}
.sec-head p{color:var(--ink-2);max-width:38em}

/* three layers strip */
.layers{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line-strong);border-radius:var(--r);background:var(--surface);overflow:hidden;margin-bottom:44px}
.layers > div{padding:22px 22px 20px;display:flex;flex-direction:column;gap:6px;position:relative}
.layers > div + div{border-left:1px solid var(--line)}
.layers .n{font-family:var(--f-mono);font-size:12px;color:var(--muted)}
.layers h3{font-size:19px;font-weight:700}
.layers p{color:var(--ink-2);font-size:14px}
.layers .tag{font-family:var(--f-mono);font-size:12px;color:var(--accent);margin-top:4px}
@media (max-width:760px){.layers{grid-template-columns:1fr}.layers > div + div{border-left:0;border-top:1px solid var(--line)}}

.layer-title{display:flex;align-items:baseline;gap:14px;margin:0 0 16px;flex-wrap:wrap}
.layer-title h3{font-size:20px;font-weight:700}
.layer-title span{color:var(--muted);font-size:14px}
.dims{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:40px}
@media (max-width:1040px){.dims{grid-template-columns:repeat(3,1fr)}}
@media (max-width:760px){.dims{grid-template-columns:repeat(2,1fr)}}
@media (max-width:480px){.dims{grid-template-columns:1fr}}
.dim{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 18px 16px;display:flex;flex-direction:column;gap:10px}
.dim-top{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}
.dim-code{font-family:var(--f-mono);font-size:12px;color:var(--muted)}
.dim h4{font-size:21px;font-weight:700;margin:2px 0 0;font-family:var(--f-display)}
.dim .q{color:var(--ink-2);font-size:14px}
.badge{font-size:11px;padding:2px 7px;border-radius:4px;white-space:nowrap;font-weight:500}
.badge.orig{background:var(--surface-2);color:var(--ink-2)}
.badge.new{background:var(--accent-soft);color:var(--accent)}
.dim ul{list-style:none;margin:0;padding:10px 0 0;border-top:1px dashed var(--line);display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--ink-2)}
.dim li{display:flex;gap:8px}
.dim li::before{content:"";flex:none;width:5px;height:5px;border-radius:50%;background:var(--line-strong);margin-top:9px}
.dim .w{margin-top:auto;display:flex;justify-content:space-between;font-size:12px;color:var(--muted);font-family:var(--f-mono)}
.optional{display:flex;gap:16px;align-items:center;flex-wrap:wrap;background:var(--surface);border:1px dashed var(--line-strong);border-radius:var(--r);padding:16px 20px;color:var(--ink-2);font-size:14px}
.optional b{color:var(--ink)}

/* Rx */
.picker{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.chip{font:inherit;font-size:14px;border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);border-radius:999px;padding:6px 14px;cursor:pointer;transition:background .15s,border-color .15s}
.chip:hover{border-color:var(--accent)}
.chip[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.picker-note{font-size:13px;color:var(--muted);margin-bottom:26px;min-height:1.7em}
.lanes{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
@media (max-width:1040px){.lanes{grid-template-columns:repeat(3,1fr)}}
@media (max-width:700px){.lanes{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.lanes{grid-template-columns:1fr}}
.lane{display:flex;flex-direction:column;gap:10px}
.lane-h{font-size:13px;color:var(--muted);display:flex;justify-content:space-between;border-bottom:2px solid var(--ink);padding-bottom:6px}
.lane-h b{color:var(--ink);font-weight:700;font-size:14px}
.o{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px 14px 12px;display:flex;flex-direction:column;gap:6px;transition:opacity .2s,border-color .2s,box-shadow .2s}
.o-top{display:flex;justify-content:space-between;align-items:center;gap:6px}
.o-code{font-family:var(--f-mono);font-weight:600;font-size:18px;letter-spacing:.02em}
.o-name{font-weight:700;font-size:14px}
.o p{font-size:13px;color:var(--ink-2)}
.o .moves{font-size:12px;color:var(--muted)}
.lanes.filtering .o{opacity:.4}
.lanes.filtering .o.hit{opacity:1;border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}

/* quick check */
.qc{display:grid;grid-template-columns:380px 1fr;gap:28px;align-items:start}
@media (max-width:900px){.qc{grid-template-columns:1fr}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.form{display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:5px}
.field label{font-size:13px;font-weight:500;color:var(--ink-2)}
.field input,.field select,.field textarea{font:inherit;font-size:15px;color:var(--ink);background:var(--bg);border:1px solid var(--line-strong);border-radius:7px;padding:9px 11px;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:transparent}
.hint{font-size:12px;color:var(--muted)}
.demo-note{font-size:12px;color:var(--watch);background:var(--watch-soft);border-radius:6px;padding:8px 10px;line-height:1.55}
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:14px}
.steps li{display:flex;gap:10px;align-items:center;color:var(--muted)}
.steps li .dot{width:18px;height:18px;border-radius:50%;border:1.5px solid var(--line-strong);flex:none;display:grid;place-items:center;font-size:11px}
.steps li.done{color:var(--ink)}
.steps li.done .dot{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.steps li.run{color:var(--ink)}
.steps li.run .dot{border-color:var(--accent);border-top-color:transparent;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.brief-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.brief-head h3{font-size:19px}
.brief-head .mono{font-size:12px;color:var(--muted)}
.gauges{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media (max-width:600px){.gauges{grid-template-columns:1fr 1fr}}
.gauge{border:1px solid var(--line);border-radius:8px;padding:12px;display:flex;flex-direction:column;align-items:center;gap:4px;text-align:center}
.gauge svg{width:100%;max-width:120px;height:auto}
.gauge .g-n{font-weight:700;font-size:14px}
.gauge .g-c{font-size:12px;color:var(--muted)}
.issues{margin-top:18px;display:flex;flex-direction:column;gap:8px}
.issue{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:start;font-size:14px;padding:10px 12px;border-radius:8px;background:var(--bg)}
.brief-cta{margin-top:18px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding-top:16px;border-top:1px dashed var(--line-strong);font-size:14px;color:var(--ink-2)}

/* report */
.report{background:var(--paper);border:1px solid var(--line-strong);border-radius:8px;overflow:hidden}
.r-head{padding:22px 26px 16px;border-bottom:2px solid var(--ink);display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.r-head h3{font-family:var(--f-display);font-size:24px;font-weight:900}
.r-head .mono{font-size:12px;color:var(--muted);text-align:right}
.r-meta{display:grid;grid-template-columns:repeat(6,1fr);gap:10px 18px;padding:14px 26px;border-bottom:1px dashed var(--line-strong);font-size:13px}
.r-meta div{display:flex;flex-direction:column}
.r-meta span{color:var(--muted);font-size:12px}
.r-meta b{font-weight:500}
@media (max-width:820px){.r-meta{grid-template-columns:repeat(3,1fr)}}
@media (max-width:480px){.r-meta{grid-template-columns:1fr 1fr;padding-inline:16px}.r-head{padding-inline:16px}}
.r-sec{padding:28px 26px;border-bottom:1px solid var(--line)}
@media (max-width:480px){.r-sec{padding:22px 16px}}
.r-sec:last-child{border-bottom:0}
.r-sec h4{font-size:17px;font-weight:700;margin:0 0 4px;display:flex;align-items:baseline;gap:10px}
.r-sec h4 .mono{font-size:12px;color:var(--muted);font-weight:400}
.r-sec .sub{color:var(--ink-2);font-size:14px;margin-bottom:18px}
.overview{display:grid;grid-template-columns:280px 1fr 1fr;gap:28px;align-items:start}
@media (max-width:1040px){.overview{grid-template-columns:1fr 1fr}.overview .scorecard{grid-column:1/-1}}
@media (max-width:700px){.overview{grid-template-columns:1fr}}
.scorecard{display:flex;flex-direction:column;gap:14px}
.bignum{display:flex;align-items:baseline;gap:10px}
.bignum b{font-family:var(--f-mono);font-size:64px;font-weight:600;line-height:1}
.bignum span{font-size:14px;color:var(--muted)}
.grade{display:inline-flex;align-self:flex-start;font-weight:700;font-size:14px;padding:4px 10px;border-radius:6px}
.scale{display:grid;grid-template-columns:60fr 10fr 15fr 15fr;gap:2px;font-size:11px;color:var(--muted)}
.scale div{display:flex;flex-direction:column;gap:3px}
.scale i{display:block;height:6px;border-radius:2px}
.cmp{font-size:14px;color:var(--ink-2);display:flex;flex-direction:column;gap:6px}
.cmp div{display:flex;justify-content:space-between;border-bottom:1px dashed var(--line);padding-bottom:5px}
.cmp b{font-family:var(--f-mono)}
.legend{display:flex;gap:16px;font-size:13px;color:var(--ink-2);margin-bottom:6px;flex-wrap:wrap}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:14px;height:3px;border-radius:2px;display:inline-block}
.radar-box{position:relative}
.radar-box svg{width:100%;height:auto;display:block;max-width:440px;margin:0 auto}
.tip{position:absolute;pointer-events:none;background:var(--ink);color:var(--bg);font-size:12px;padding:6px 9px;border-radius:6px;white-space:nowrap;transform:translate(-50%,-115%);opacity:0;transition:opacity .12s;z-index:3;line-height:1.5}
.tip.show{opacity:1}
.bars{display:flex;flex-direction:column;gap:7px}
.bar-row{display:grid;grid-template-columns:52px 1fr 30px 44px;gap:10px;align-items:center;font-size:13px}
.bar-track{position:relative;height:10px;background:var(--surface-2);border-radius:3px}
.bar-track .fill{position:absolute;left:0;top:0;bottom:0;background:var(--s-brand);border-radius:0 4px 4px 0}
.bar-track .comp{position:absolute;top:-3px;bottom:-3px;width:2.5px;background:var(--s-comp);border-radius:1px}
.bar-row .v{font-family:var(--f-mono);font-weight:600;text-align:right}
.filters{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
table.lab{width:100%;border-collapse:collapse;font-size:13px;min-width:720px}
table.lab th{text-align:left;font-weight:500;color:var(--muted);font-size:12px;padding:9px 12px;border-bottom:1px solid var(--line-strong);background:var(--surface-2);white-space:nowrap}
table.lab td{padding:8px 12px;border-bottom:1px solid var(--line);vertical-align:top}
table.lab tr.grp td{background:var(--bg);font-weight:700;font-size:13px;padding-block:7px}
table.lab tr.grp td span{font-family:var(--f-mono);font-weight:400;color:var(--muted);margin-left:8px;font-size:12px}
table.lab td.num{font-family:var(--f-mono);font-weight:600;white-space:nowrap}
table.lab td.ref{font-family:var(--f-mono);color:var(--ink-2);white-space:nowrap}
table.lab td.def{color:var(--ink-2)}
table.lab td.arrow{font-family:var(--f-mono);font-weight:700;text-align:center}
table.lab tr:last-child td{border-bottom:0}
.ev{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:900px){.ev{grid-template-columns:1fr}}
.ev-card{border:1px solid var(--line);border-radius:8px;background:var(--surface);display:flex;flex-direction:column;overflow:hidden}
.ev-q{padding:12px 14px;background:var(--surface-2);font-size:13px;display:flex;flex-direction:column;gap:2px}
.ev-q span{font-size:11px;color:var(--muted);font-family:var(--f-mono)}
.ev-a{padding:12px 14px;font-size:13px;color:var(--ink-2);line-height:1.75;flex:1}
.ev-a mark{background:var(--bad-soft);color:var(--bad);padding:0 2px;border-radius:2px}
.ev-a mark.w{background:var(--watch-soft);color:var(--watch)}
.ev-f{padding:10px 14px;border-top:1px dashed var(--line-strong);font-size:12px;display:flex;flex-direction:column;gap:3px}
.ev-f b{font-weight:500;color:var(--ink)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:32px}
@media (max-width:820px){.two{grid-template-columns:1fr}}
.src-row{display:grid;grid-template-columns:110px 1fr 44px;gap:10px;align-items:center;font-size:13px;margin-bottom:7px}
.src-row .bar-track .fill{background:var(--s-brand)}
.src-row.low .bar-track .fill{background:var(--bad)}
.rx{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:900px){.rx{grid-template-columns:1fr}}
.rx-col{border:1px solid var(--line);border-radius:8px;background:var(--surface);overflow:hidden}
.rx-col header{padding:10px 14px;display:flex;justify-content:space-between;align-items:center;font-weight:700;font-size:14px;border-bottom:1px solid var(--line)}
.rx-col header span{font-weight:400;font-size:12px;color:var(--muted)}
.rx-col.p1 header{border-top:3px solid var(--bad)}
.rx-col.p2 header{border-top:3px solid var(--watch)}
.rx-col.p3 header{border-top:3px solid var(--ok)}
.rx-item{padding:12px 14px;border-bottom:1px solid var(--line);font-size:13px;display:flex;flex-direction:column;gap:6px}
.rx-item:last-child{border-bottom:0}
.rx-item b{font-size:14px}
.otags{display:flex;gap:5px;flex-wrap:wrap}
.otag{font-family:var(--f-mono);font-size:11px;font-weight:600;padding:1px 7px;border-radius:4px;background:var(--accent-soft);color:var(--accent)}
.rx-item .why{color:var(--ink-2)}

/* plans */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media (max-width:1040px){.plans{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.plans{grid-template-columns:1fr}}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;display:flex;flex-direction:column;gap:14px}
.plan.feat{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.plan h3{font-size:20px;font-family:var(--f-display);font-weight:900}
.plan .for{font-size:13px;color:var(--ink-2);min-height:3.4em}
.plan dl{margin:0;display:flex;flex-direction:column;gap:0;font-size:13px}
.plan dl div{display:flex;justify-content:space-between;gap:10px;padding:7px 0;border-bottom:1px dashed var(--line)}
.plan dt{color:var(--muted)}
.plan dd{margin:0;font-weight:500;text-align:right}
.plan .price{font-family:var(--f-mono);font-size:15px;color:var(--ink-2)}
.plan .btn{margin-top:auto}

/* method */
.method{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media (max-width:900px){.method{grid-template-columns:1fr}}
.method h3{font-size:17px;margin-bottom:10px}
.qlist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:14px}
.qlist li{display:grid;grid-template-columns:52px 1fr;gap:8px;align-items:baseline}
.qlist li span{font-size:12px;color:var(--accent);font-weight:500}
.intent{display:grid;grid-template-columns:30fr 40fr 30fr;gap:2px;margin-top:16px;font-size:12px;text-align:center}
.intent div{padding:8px 4px;color:var(--ink)}
.intent div:nth-child(1){background:var(--surface-3)}
.intent div:nth-child(2){background:var(--accent-soft)}
.intent div:nth-child(3){background:color-mix(in srgb,var(--accent) 35%,var(--surface))}
.plat{display:flex;flex-direction:column;gap:12px;font-size:14px}
.plat div > span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.plat p{display:flex;flex-wrap:wrap;gap:6px}
.plat p i{font-style:normal;border:1px solid var(--line);background:var(--surface);border-radius:5px;padding:2px 8px;font-size:13px}
.formula{font-family:var(--f-mono);font-size:13px;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:14px;line-height:1.9;color:var(--ink-2)}
.formula b{color:var(--ink)}
.grades{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-top:12px;font-size:12px;text-align:center}
.grades div{border-radius:6px;padding:8px 4px;display:flex;flex-direction:column}
.grades b{font-size:14px}
.redline{margin-top:32px;font-size:13px;color:var(--ink-2);border-left:3px solid var(--line-strong);padding:4px 0 4px 14px;max-width:62em}

/* book */
.book{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
@media (max-width:900px){.book{grid-template-columns:1fr}}
.book-flow{list-style:none;margin:24px 0 0;padding:0;display:flex;flex-direction:column;gap:0;counter-reset:f}
.book-flow li{display:grid;grid-template-columns:34px 1fr;gap:12px;padding-bottom:18px;position:relative}
.book-flow li::before{counter-increment:f;content:counter(f);width:28px;height:28px;border-radius:50%;border:1.5px solid var(--accent);color:var(--accent);display:grid;place-items:center;font-family:var(--f-mono);font-size:13px;font-weight:600;background:var(--bg);position:relative;z-index:1}
.book-flow li:not(:last-child)::after{content:"";position:absolute;left:13.5px;top:28px;bottom:0;width:1.5px;background:var(--line-strong)}
.book-flow b{display:block}
.book-flow span{font-size:14px;color:var(--ink-2)}
.checks{display:flex;flex-wrap:wrap;gap:8px}
.checks label{display:inline-flex;align-items:center;gap:6px;font-size:14px;border:1px solid var(--line-strong);border-radius:6px;padding:5px 10px;cursor:pointer;background:var(--bg)}
.checks input{accent-color:var(--accent)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:480px){.row2{grid-template-columns:1fr}}
.ok-msg{border-radius:8px;padding:14px;background:var(--ok-soft);color:var(--ink);font-size:14px}
footer{border-top:1px solid var(--line);padding-block:28px 40px;color:var(--muted);font-size:13px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ———— 测试网站新增 ———— */
html{color-scheme:light}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}
.field label em,.field .lbl em{color:var(--bad);font-style:normal}
.field .lbl{font-size:13px;font-weight:500;color:var(--ink-2)}
.plat-line{font-size:13px;color:var(--ink-2);background:var(--surface-2);border-radius:6px;padding:8px 10px;line-height:1.6}
.plat-line b{color:var(--ink);font-weight:500}
.plat-line .mock{color:var(--watch);font-weight:500}
.consent{display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--ink-2);cursor:pointer}
.consent input{margin-top:4px;accent-color:var(--accent)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-err{font-size:13px;color:var(--bad);background:var(--bad-soft);border-radius:6px;padding:8px 10px}
.btn[disabled]{opacity:.6;cursor:progress}
.progress{display:flex;flex-direction:column;gap:6px}
.progress-bar{height:8px;background:var(--surface-3);border-radius:4px;overflow:hidden}
.progress-bar span{display:block;height:100%;width:0;background:var(--accent);border-radius:4px;transition:width .4s}
.progress-txt{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-2)}
.sample-tag{font-size:12px;color:var(--watch);background:var(--watch-soft);border-radius:6px;padding:6px 10px;margin-bottom:14px}
.cta-btns{display:flex;gap:8px;flex-wrap:wrap}
.gauge.na svg{opacity:.4}
.res-sec{margin-top:22px;padding-top:18px;border-top:1px dashed var(--line-strong)}
.res-sec h4{font-size:15px;margin:0 0 10px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;align-items:baseline}
.res-sec h4 small{font-weight:400;color:var(--muted);font-size:12px}
table.mini{width:100%;border-collapse:collapse;font-size:13px}
table.mini th{font-weight:500;color:var(--muted);font-size:12px;text-align:left;padding:6px 8px;border-bottom:1px solid var(--line-strong);white-space:nowrap}
table.mini td{padding:6px 8px;border-bottom:1px solid var(--line)}
table.mini td.num{font-family:var(--f-mono);font-weight:600;white-space:nowrap}
table.mini td.c{text-align:center}
table.mini tr.grp td{background:var(--bg);font-weight:700}
.mx{min-width:520px}
.cell{display:inline-grid;place-items:center;min-width:30px;height:24px;border-radius:5px;font-family:var(--f-mono);font-size:12px;font-weight:600}
.cell.r1{background:var(--s-brand);color:#fff}
.cell.r3{background:var(--accent-soft);color:var(--accent)}
.cell.rn{background:var(--surface-2);color:var(--ink-2)}
.cell.no{color:var(--muted)}
.cell.err{color:var(--watch)}
.mx-legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-top:8px;align-items:center}
.ev-a mark.b{background:var(--accent-soft);color:var(--accent)}
.ev-a{white-space:pre-wrap;max-height:220px;overflow:auto}
.bots{display:grid;grid-template-columns:repeat(2,1fr);gap:4px 16px;font-size:13px}
@media (max-width:560px){.bots{grid-template-columns:1fr}}
.bots div{display:flex;justify-content:space-between;gap:8px;border-bottom:1px dashed var(--line);padding:4px 0}
.note-sm{font-size:12px;color:var(--muted);margin-top:8px}
textarea{resize:vertical}
.qc{grid-template-columns:minmax(0,380px) minmax(0,1fr)}
.qc > *{min-width:0}
@media (max-width:900px){.qc{grid-template-columns:minmax(0,1fr)}}