:root{--bg:#F4F5F7;--surface:#FFFFFF;--text:#111827;--muted:#6B7280;--border:#E5E7EB;--accent:#4F46E5;--accent-soft:#EEF2FF;
--warn-fg:#92400E;--warn-bg:#FEF3C7;--radius:10px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
header.top{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
.top .in{max-width:1280px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.brand{font-weight:700;font-size:17px;color:var(--text)}.brand span{color:var(--accent)}
nav a{color:var(--muted);font-weight:600;margin-right:16px;padding:6px 0;display:inline-block}
nav a.on{color:var(--accent);border-bottom:2px solid var(--accent)}
main{max-width:1280px;margin:0 auto;padding:20px}
h1{font-size:26px;margin:4px 0 6px;line-height:1.2}h2{font-size:19px;margin:0 0 10px}h3{font-size:16px;margin:0 0 6px}
.muted{color:var(--muted)}.small{font-size:13px}.tiny{font-size:12px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin-bottom:14px}
.pill{display:inline-block;padding:1px 9px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap;background:#F3F4F6;color:#4B5563}
.badge-low{background:var(--warn-bg);color:var(--warn-fg)}.badge-acc{background:var(--accent-soft);color:var(--accent)}
.badge-on{background:#D1FAE5;color:#047857}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.grow{flex:1}
form.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:flex-end;margin:10px 0 14px}
form.filters label{font-size:12px;font-weight:600;color:var(--muted);display:flex;flex-direction:column;gap:3px}
input,select,button{font:inherit;padding:7px 10px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text)}
button,.btn{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600;cursor:pointer;padding:7px 14px;border-radius:8px;display:inline-block}
.btn.ghost{background:var(--surface);color:var(--accent);border:1px solid var(--border)}
.btn:hover{text-decoration:none;filter:brightness(1.05)}
.tablewrap{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{padding:8px 10px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}
th{font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);background:#FAFAFB;position:sticky;top:0;white-space:nowrap}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
tr:hover td{background:#FAFAFF}
tr.unrated td{color:var(--muted)}
.name a{font-weight:600}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin:8px 0}
.tile{background:#F9FAFB;border:1px solid var(--border);border-radius:8px;padding:10px 12px}
.tile b{display:block;font-size:17px}.tile span{font-size:12px;color:var(--muted)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin:6px 0 14px;overflow-x:auto}
.tabs a{padding:9px 14px;color:var(--muted);font-weight:600;white-space:nowrap;border-bottom:2px solid transparent}
.tabs a.on{color:var(--accent);border-color:var(--accent)}
.stepper{display:grid;grid-template-columns:repeat(6,1fr);gap:4px;margin:10px 0 4px}
.step .bar{height:8px;border-radius:4px;background:var(--border)}
.step.reached .bar{background:var(--accent)}
.step .lbl{font-size:12px;color:var(--muted);margin-top:4px;line-height:1.3}
.step.reached .lbl{color:var(--text)}.step.current .lbl{color:var(--accent);font-weight:700}
.step .d{font-size:11px;color:var(--muted)}
.notice{background:var(--warn-bg);color:var(--warn-fg);border:1px solid #FCD34D;border-radius:var(--radius);padding:12px 16px;margin-bottom:14px}
.notice b{display:block;margin-bottom:4px}
ul.ev{margin:6px 0 0;padding-left:18px}ul.ev li{margin:3px 0}
details summary{cursor:pointer;color:var(--muted);font-size:13px;font-weight:600;margin-top:8px}
.pager{display:flex;gap:8px;align-items:center;margin:12px 0}
.mapwrap{display:grid;grid-template-columns:1fr 320px;gap:14px}
.map svg{width:100%;height:auto;display:block}
.map path{stroke:#fff;stroke-width:1;transition:opacity .1s}
.map path.active{stroke:var(--accent);stroke-width:2.5}
.map path.faded{opacity:.35}
.map a:hover path,.map a:focus path{stroke:var(--text);stroke-width:3}
.legend div{display:flex;align-items:center;gap:8px;font-size:13px;margin:3px 0}
.legend i{width:22px;height:14px;border-radius:3px;border:1px solid var(--border);display:inline-block}
#tip{position:fixed;pointer-events:none;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:6px 10px;
font-size:13px;box-shadow:0 4px 14px rgba(0,0,0,.08);display:none;z-index:20}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
footer{max-width:1280px;margin:0 auto;padding:10px 20px 30px;color:var(--muted);font-size:12px}
.hide-sm{}
@media (max-width:900px){.mapwrap,.grid2{grid-template-columns:1fr}.hide-md{display:none}}
@media (max-width:640px){header.top{position:static}main{padding:12px}.hide-sm{display:none}h1{font-size:22px}.card{padding:14px}
.stepper{grid-template-columns:repeat(3,1fr)}th,td{padding:7px 8px}nav a{margin-right:10px}}
/* homepage */
.hero{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:34px 32px;margin-bottom:14px}
.hero h1{font-size:34px;max-width:820px;margin:0 0 10px}
.hero .lede{font-size:18px;max-width:760px;margin:0 0 8px}
.hero .muted{max-width:760px}
.cta{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 16px}
.btn.big{padding:11px 20px;font-size:16px}
.hsearch{max-width:520px}.hsearch label{display:block;margin-bottom:4px}.hsearch .row{gap:8px;flex-wrap:nowrap}.hsearch input{min-width:0}
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin:0 0 4px}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}
.stat b{display:block;font-size:24px;line-height:1.2;color:var(--accent);font-variant-numeric:tabular-nums}
.stat span{font-size:13px;color:var(--muted)}
.hgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}.hgrid .card{margin:0}
.hgrid p{margin:0 0 10px}
ol.steps{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0;margin:0 0 12px;counter-reset:s}
ol.steps li{counter-increment:s;background:var(--accent-soft);color:var(--accent);font-weight:600;font-size:13px;padding:4px 10px;border-radius:999px}
ol.steps li::before{content:counter(s) ". "}
ul.defs{margin:0 0 10px;padding-left:18px}ul.defs li{margin:4px 0}
.formula{font-size:18px;font-weight:700;background:#F9FAFB;border:1px solid var(--border);border-radius:8px;padding:10px 14px;display:inline-block}
@media (max-width:900px){.stats{grid-template-columns:repeat(3,1fr)}.hgrid{grid-template-columns:1fr}}
@media (max-width:640px){.hero{padding:20px 16px}.hero h1{font-size:26px}.hero .lede{font-size:16px}
.stats{grid-template-columns:repeat(2,1fr)}.stat b{font-size:20px}.cta .btn{flex:1;text-align:center}}