:root{--ink:#14232b;--muted:#5d6b73;--line:#dfe7ea;--bg:#f5f8f9;--card:#fff;--accent:#0b7a8a;--accent2:#0a5f6b;--soft:#e6f4f6;--warn:#8a5a00;--warnbg:#fff6e0;--good:#11795a;--goodbg:#e5f6ef;--radius:12px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
a{color:var(--accent)}
a:hover{color:var(--accent2)}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
header.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);text-decoration:none;font-size:17px;white-space:nowrap}
.brand img{width:26px;height:26px}
nav.links{display:flex;gap:18px;font-size:14px;flex-wrap:wrap;justify-content:flex-end}
nav.links a{color:var(--muted);text-decoration:none}
nav.links a:hover,nav.links a[aria-current=page]{color:var(--accent)}
.hero{background:linear-gradient(160deg,#e3f3f6 0%,#f5f8f9 70%);padding:56px 0 40px;border-bottom:1px solid var(--line)}
.hero h1{font-size:clamp(26px,5vw,40px);line-height:1.25;margin:0 0 14px;letter-spacing:-.5px}
.hero p.lead{font-size:17px;color:var(--muted);max-width:720px;margin:0 0 24px}
.cta{display:inline-block;background:var(--accent);color:#fff!important;text-decoration:none;padding:12px 22px;border-radius:10px;font-weight:600}
.cta:hover{background:var(--accent2)}
.cta.ghost{background:transparent;color:var(--accent)!important;border:1px solid var(--accent);margin-left:8px}
.cta.ghost:hover{background:var(--soft)}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-top:30px}
.fact{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.fact b{display:block;font-size:22px;color:var(--accent2)}
.fact span{font-size:13px;color:var(--muted)}
section{padding:44px 0 8px}
h2{font-size:24px;margin:0 0 6px}
.sub{color:var(--muted);margin:0 0 18px;font-size:14px}
.updated{display:inline-block;background:var(--soft);color:var(--accent2);border-radius:999px;padding:2px 12px;font-size:13px;font-weight:600}
.tablebox{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:14px;min-width:900px}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#f0f5f6;font-weight:600;white-space:nowrap;font-size:13px;color:#33434b}
tr:last-child td{border-bottom:0}
tr.self td{background:#effafb}
td.num{white-space:nowrap;font-variant-numeric:tabular-nums}
td small,.muted{color:var(--muted);font-size:12px}
.tag{display:inline-block;font-size:11px;padding:0 6px;border-radius:4px;background:var(--soft);color:var(--accent2);margin-left:4px;vertical-align:1px}
.bar{height:8px;border-radius:4px;background:var(--accent);opacity:.75;min-width:2px}
.barcell{min-width:140px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:14px}
.card h3{margin:0 0 8px;font-size:17px}
.note{background:var(--warnbg);color:var(--warn);border-radius:10px;padding:10px 14px;font-size:14px;margin:14px 0}
.good{background:var(--goodbg);color:var(--good)}
ul.claims{padding-left:20px;margin:8px 0}
ul.claims li{margin:6px 0}
details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600}
details p,details ul{margin:10px 0 2px;color:#33434b}
pre{background:#0f1d24;color:#e6f1f3;padding:14px 16px;border-radius:10px;overflow-x:auto;font-size:13px;line-height:1.55}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
:not(pre)>code{background:#e9eff1;padding:1px 5px;border-radius:4px}
footer{margin-top:50px;border-top:1px solid var(--line);background:#fff;padding:26px 0;font-size:13px;color:var(--muted)}
footer .disclosure{font-weight:600;color:var(--ink)}
article.doc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 28px 24px;margin-top:28px}
article.doc h1{font-size:28px;line-height:1.3}
article.doc h2{margin-top:28px}
@media(max-width:640px){header.top .wrap{height:auto;padding-top:10px;padding-bottom:10px;flex-direction:column;align-items:flex-start;gap:6px}nav.links{justify-content:flex-start;gap:14px}.hero{padding:36px 0 28px}.cta.ghost{margin:10px 0 0}article.doc{padding:4px 16px 18px}}
table.cmp{min-width:1180px;table-layout:fixed}
table.cmp th:nth-child(1){width:120px}table.cmp th:nth-child(2){width:150px}table.cmp th:nth-child(3){width:150px}
table.cmp th:nth-child(4),table.cmp th:nth-child(5){width:100px}table.cmp th:nth-child(6){width:210px}
table.cmp th:nth-child(7){width:190px}table.cmp th:nth-child(8){width:160px}
table.cmp td{word-break:break-word}
@media(max-width:640px){.facts{grid-template-columns:1fr 1fr}.fact b{font-size:18px}}
.whygrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px;margin-bottom:18px}
.why{background:#fff;border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:var(--radius);padding:16px 18px}
.why h3{margin:0 0 6px;font-size:17px;color:var(--accent2)}
.why p{margin:0;color:#33434b;font-size:14px}
nav.links a.navcta{color:#fff;background:var(--accent);padding:3px 12px;border-radius:8px}
nav.links a.navcta:hover{background:var(--accent2);color:#fff}
tr.self td{background:#e3f5f7;border-top:2px solid var(--accent);border-bottom:2px solid var(--accent)}
tr.self td:first-child{box-shadow:inset 4px 0 0 var(--accent)}
.tag{background:var(--accent);color:#fff}