:root{--bg:#f7faf5;--ink:#1b2b1c;--muted:#556455;--card:#fff;--accent:#2f6b3a;--accent2:#8a5410;--border:#d6e3d4;--soft:#eaf4e8}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--accent)}
.wrap{max-width:1000px;margin:0 auto;padding:0 16px}
.top{background:var(--accent);color:#fff}
.top .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;padding-top:12px;padding-bottom:12px}
.brand{color:#fff;font-weight:700;font-size:1.15rem;text-decoration:none}
.nav{display:flex;flex-wrap:wrap;gap:4px 16px}
.nav a{color:#fff;text-decoration:none;display:inline-flex;align-items:center;min-height:44px;padding:0 4px}
main{padding-top:12px;padding-bottom:24px}
.crumbs{color:var(--muted);margin:4px 0 0}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;align-items:center}
.crumbs li{display:flex;align-items:center}
.crumbs li+li::before{content:"›";margin:0 8px;color:var(--muted)}
.crumbs a{display:inline-flex;align-items:center;min-height:44px}
.meta{color:var(--muted);margin:-.2em 0 .8em}
h1{font-size:clamp(1.5rem,4.5vw,2.1rem);line-height:1.25;margin:.4em 0}
h2{font-size:1.3rem;margin:1.6em 0 .5em}
.lede{font-size:1.08rem}
.muted{color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:16px 0}
.stats>div{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px}
.stats span{display:block;font-size:1rem;color:var(--muted)}
.stats b{display:block;font-size:1.45rem;line-height:1.3}
.stats b a{text-decoration:none}
.stats small{display:block;color:var(--muted);font-size:1rem;line-height:1.35}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:10px;background:var(--card)}
table{width:100%;border-collapse:collapse;font-size:1rem}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border);vertical-align:top}
thead th{background:var(--soft);white-space:nowrap}
tbody tr:last-child>*{border-bottom:0}
table.cal td{white-space:nowrap}
table.cal th[scope=row]{min-width:120px}
.note{font-weight:400;font-size:1rem;color:var(--accent2);white-space:normal;max-width:240px}
.callout{background:#fff7ea;border:1px solid #efd6ae;border-radius:10px;padding:12px 14px;margin:12px 0}
details{margin-top:10px}
summary{cursor:pointer;color:var(--accent);min-height:44px;display:flex;align-items:center}
ul.cols{columns:2 260px;column-gap:28px;padding-left:18px}
ul.cols li{break-inside:avoid}
ul.cols a{display:inline-block;padding:10px 0;min-height:44px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:8px}
.tile{display:block;min-height:44px;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:10px;text-decoration:none;color:var(--ink)}
.tile b{display:block;color:var(--accent)}
.tile small{color:var(--muted)}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;margin:16px 0}
.lookup label{font-weight:600;display:block;margin-bottom:6px}
.lookup .row{display:flex;gap:8px;flex-wrap:wrap}
.lookup input{font-size:1.2rem;padding:10px 12px;border:1px solid var(--border);border-radius:10px;width:10ch;min-width:0;flex:1 1 140px;max-width:220px}
.lookup button{font-size:1.05rem;padding:10px 18px;border:0;border-radius:10px;background:var(--accent);color:#fff;cursor:pointer;min-height:44px}
#result{margin-top:12px}
.pill{display:inline-block;background:var(--soft);color:var(--accent);font-weight:700;border-radius:999px;padding:2px 12px;font-size:1.2rem}
.states{line-height:2.75}
.pager{margin-top:24px}
.foot{border-top:1px solid var(--border);color:var(--muted);padding:20px 0 36px;background:#f1f6ef}
.flinks{display:flex;flex-wrap:wrap;gap:0 18px}
.flinks a{display:inline-flex;align-items:center;min-height:44px}
.disc{color:#6b4a1c}
/* AdSense placeholders: hidden until ads are enabled (remove display:none and give min-height to avoid layout shift) */
.ad-slot{display:none}
@media (max-width:560px){th,td{padding:7px 8px}.stats b{font-size:1.25rem}}

img,svg{max-width:100%}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px}
.skip:focus{left:8px;z-index:9}
.table-wrap:focus{outline:2px solid var(--accent);outline-offset:2px}
.fig{margin:18px 0;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:10px 10px 6px}
.fig figcaption{color:var(--muted);margin-top:6px}
svg.chart{display:block;width:100%;height:auto;max-width:720px;margin:0 auto}
svg.chart text{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
svg .ax{font-size:11px;fill:#4b5a4b}
svg .lbl{font-size:12px;font-weight:600;fill:#1b2b1c}
svg .in{font-size:11px;font-weight:600;fill:#fff}
svg .g{stroke:#e3ebe1;stroke-width:1}
svg .risk{fill:#2f6b3a;opacity:.13}
svg .l32{fill:none;stroke:#2f6b3a;stroke-width:2.5}
svg .l28{fill:none;stroke:#8a5410;stroke-width:2;stroke-dasharray:5 4}
svg .m{stroke:#2f6b3a;stroke-dasharray:3 3}
svg .dot{fill:#2f6b3a}
svg .b10{fill:#174d24}svg .b30{fill:#23683a}svg .b50{fill:#2f7d46}svg .b28{fill:#8a5410}
svg .k-indoor{fill:#8fbf96}svg .k-transplant{fill:#23683a}svg .k-direct{fill:#c58a2a}svg .k-fall{fill:#4a6fa5}svg .k-ff{fill:#b88cc4}
svg.map .zd{fill:#c0392b}
.faq .qa{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:4px 14px;margin:10px 0}
.faq h3{font-size:1.08rem;margin:.7em 0 .2em}
.faq p{margin:.2em 0 .8em}
.guide{max-width:720px}
.guide h2{margin-top:1.8em}
.guide sup a{padding:0 2px}
.refs ol{padding-left:22px}
.refs li{margin:6px 0;overflow-wrap:anywhere}
.glist{list-style:none;padding:0}
.gcard{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px 16px;margin:12px 0}
.gcard a{display:inline-block;padding:6px 0;font-size:1.1rem}
.gcard p{margin:.3em 0}
code{overflow-wrap:anywhere}
main{overflow-wrap:break-word}
sup{font-size:1rem;line-height:0}
small{font-size:1rem}