:root{color-scheme:light dark;
  --bg:#f6f7f4;--surface:#ffffff;--surface-2:#eef1ec;--text:#1b2420;--muted:#5b6862;
  --border:#dbe1dc;--accent:#0f7a52;--accent-ink:#ffffff;--accent-soft:#e2f2ea;
  --gold:#b7861a;--danger:#b3261e;--radius:14px;--shadow:0 1px 2px rgba(16,24,20,.05),0 4px 16px rgba(16,24,20,.05);
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0f1412;--surface:#161d1a;--surface-2:#1d2622;--text:#e7ece9;--muted:#9aa8a1;
    --border:#2a3530;--accent:#3cc48b;--accent-ink:#06130d;--accent-soft:#173327;--gold:#e0b04a;--danger:#ff8a80;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 4px 16px rgba(0,0,0,.25);}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font)}
a{color:var(--accent)}
img{max-width:100%}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header.site{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;color:var(--text);text-decoration:none;letter-spacing:-.01em}
.brand svg{flex:none}
nav.top a{color:var(--muted);text-decoration:none;font-size:.95rem;margin-left:18px}
nav.top a:hover{color:var(--accent)}
@media (max-width:640px){nav.top .hide-sm{display:none}}
main{padding:28px 0 48px}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:8px}
.crumbs a{color:var(--muted)}
h1{font-size:clamp(1.6rem,4vw,2.3rem);line-height:1.15;margin:0 0 8px;letter-spacing:-.02em}
h2{font-size:1.35rem;margin:32px 0 10px;letter-spacing:-.01em}
h3{font-size:1.05rem;margin:20px 0 6px}
.lede{color:var(--muted);font-size:1.05rem;margin:0 0 22px;max-width:62ch}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
@media (max-width:900px){.layout{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.calc{display:grid;gap:16px}
.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
label{display:block;font-weight:600;font-size:.92rem;margin-bottom:6px}
.hint{font-weight:400;color:var(--muted);font-size:.82rem}
input,select{width:100%;font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:11px 12px;min-height:46px}
input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
.affix{position:relative}
.affix .pre,.affix .post{position:absolute;top:50%;transform:translateY(-50%);color:var(--muted);font-size:.95rem;pointer-events:none}
.affix .pre{left:12px}.affix .post{right:12px}
.affix input.has-pre{padding-left:26px}.affix input.has-post{padding-right:84px}
.seg{display:flex;background:var(--surface-2);border-radius:10px;padding:4px;gap:4px;flex-wrap:wrap}
.seg label{flex:1;margin:0;min-width:110px}
.seg input{position:absolute;opacity:0;pointer-events:none;width:1px;height:1px}
.seg span{display:block;text-align:center;padding:9px 10px;border-radius:8px;cursor:pointer;font-weight:600;font-size:.9rem;color:var(--muted)}
.seg input:checked+span{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}
.seg input:focus-visible+span{outline:2px solid var(--accent)}
.check{display:flex;align-items:center;gap:8px;font-weight:500}
.check input{width:20px;height:20px;min-height:0}
.result{background:var(--accent-soft);border-radius:var(--radius);padding:18px 20px}
.result .big{font-size:clamp(1.8rem,5vw,2.4rem);font-weight:800;letter-spacing:-.02em;line-height:1.1;color:var(--text)}
.result .label{color:var(--muted);font-size:.9rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-top:14px}
.stat{background:var(--surface);border-radius:10px;padding:10px 12px}
.stat b{display:block;font-size:1.15rem}
.stat small{color:var(--muted)}
.note{font-size:.85rem;color:var(--muted)}
.warn{font-size:.88rem;background:var(--surface-2);border-left:3px solid var(--gold);padding:10px 12px;border-radius:8px}
table{width:100%;border-collapse:collapse;font-size:.93rem}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}
th{color:var(--muted);font-weight:600}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.tablewrap{overflow-x:auto}
.prose{max-width:70ch}
.prose p,.prose li{color:var(--text)}
details{border:1px solid var(--border);border-radius:10px;padding:12px 14px;background:var(--surface);margin-bottom:10px}
summary{font-weight:600;cursor:pointer}
details p{margin:8px 0 0}
aside .card{margin-bottom:18px}
aside h3{margin-top:0}
aside ul{list-style:none;padding:0;margin:0}
aside li a{display:block;padding:8px 0;border-bottom:1px solid var(--border);text-decoration:none;color:var(--text)}
aside li:last-child a{border-bottom:0}
aside li a:hover{color:var(--accent)}
.ad{display:none}
.ad.on{display:block;min-height:100px;margin:18px 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.tool{display:block;text-decoration:none;color:var(--text);transition:transform .15s,border-color .15s}
.tool:hover{transform:translateY(-2px);border-color:var(--accent)}
.tool .ico{width:42px;height:42px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;margin-bottom:10px;font-weight:800}
.tool h3{margin:0 0 4px}
.tool p{margin:0;color:var(--muted);font-size:.93rem}
.hero{padding:16px 0 10px}
footer.site{border-top:1px solid var(--border);background:var(--surface);padding:24px 0;font-size:.88rem;color:var(--muted)}
footer.site a{color:var(--muted);margin-right:14px}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);border:0;border-radius:10px;padding:11px 16px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none}
.btn.ghost{background:var(--surface-2);color:var(--text)}
.split{display:flex;gap:10px;flex-wrap:wrap}
.muted{color:var(--muted)}
[hidden]{display:none!important}
:root{--s1:#2a78d6;--s2:#eb6834}
@media (prefers-color-scheme:dark){:root{--s1:#3987e5;--s2:#d95926}}
.cm-chart{position:relative;margin-top:6px}
.cm-chart svg{display:block;overflow:visible;touch-action:pan-y}
.cm-grid{stroke:var(--border);stroke-width:1}
.cm-axis{stroke:var(--muted);stroke-width:1}
.cm-tick{fill:var(--muted);font-size:11px;font-family:var(--font)}
.cm-line{fill:none;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.cm-cross{stroke:var(--muted);stroke-width:1;stroke-dasharray:3 3}
.cm-dot{stroke:var(--surface);stroke-width:2}
.cm-legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.85rem;color:var(--muted);margin-bottom:4px}
.cm-legend i,.cm-tip i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.cm-tip{position:absolute;top:30px;width:170px;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);padding:8px 10px;font-size:.82rem;pointer-events:none;color:var(--text)}
.chartbox{min-height:20px}
.cm-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:14px 0 4px}
.cm-bar .btn{font-size:.88rem;padding:8px 12px;font-weight:600}
.cm-msg{font-size:.85rem;color:var(--muted);flex-basis:100%}
.cm-link{margin-top:6px;font-size:.85rem;min-height:0;padding:6px 8px}
.searchbox{max-width:420px;margin:0 0 18px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.chip{display:inline-block;background:var(--accent-soft);color:var(--text);border-radius:999px;padding:6px 12px;text-decoration:none;font-size:.9rem;font-weight:600}
.chip:hover{color:var(--accent)}
.next{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:10px 0 6px}
.next a{display:block;text-decoration:none;color:var(--text);border:1px solid var(--border);border-radius:12px;padding:12px 14px;background:var(--surface)}
.next a:hover{border-color:var(--accent)}
.next small{display:block;color:var(--muted)}
@media print{
  header.site,footer.site,aside,.cm-bar,.ad,details,.next-wrap,.crumbs{display:none!important}
  .layout{display:block}
  .card{box-shadow:none;border:1px solid #ccc}
  body{background:#fff;color:#000}
  .prose{display:none}
  .print-note{display:block!important}
}
.print-note{display:none;font-size:.8rem;margin-top:12px}

.btn.cm-wa{background:#e7f6ec;color:#0b5d2b}
@media (prefers-color-scheme:dark){.btn.cm-wa{background:#173327;color:#bfeccf}}