:root{--green: #1b5e4b;--green-dark: #124134;--green-soft: #e8f2ee;--amber: #b06a00;--amber-soft: #fff3e0;--ink: #16191c;--muted: #5d6670;--bg: #f7f6fa;--card: #ffffff;--line: #e4e2ec;--radius: 20px;--shadow: 0 1px 2px rgba(20, 24, 28, .04), 0 12px 32px rgba(20, 24, 28, .06);--maxw: 1080px;--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.3;letter-spacing:-.01em;margin:0 0 .5em}h1{font-size:clamp(30px,5vw,46px);font-weight:700}h2{font-size:clamp(22px,3.2vw,30px);font-weight:650}h3{font-size:18px;font-weight:620}p{margin:0 0 1em}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}.muted{color:var(--muted)}.mono{font-family:var(--mono);font-size:13px;word-break:break-all}header.site{position:sticky;top:0;z-index:20;background:#f7f6fae0;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.bar{display:flex;align-items:center;gap:20px;height:64px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:17px}.brand:hover{text-decoration:none}.mark{width:30px;height:30px;border-radius:9px;background:var(--green);display:grid;place-items:center;color:#fff;font-size:13px;font-weight:700;letter-spacing:.02em}nav.site{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}nav.site a{padding:7px 13px;border-radius:999px;color:var(--muted);font-size:15px}nav.site a:hover{background:var(--green-soft);color:var(--green-dark);text-decoration:none}nav.site a.active{background:var(--green);color:#fff}.hero{padding-top:72px;padding-bottom:56px;display:grid;grid-template-columns:1.15fr 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var(--line);border-radius:var(--radius);overflow:hidden;font-size:15px}table.spec th,table.spec td{text-align:left;padding:13px 18px;border-bottom:1px solid var(--line);vertical-align:top}table.spec tr:last-child td{border-bottom:none}table.spec th{width:190px;color:var(--muted);font-weight:500;background:#fbfaff}code.chip{font-family:var(--mono);font-size:13px;background:#f1f0f6;border:1px solid var(--line);border-radius:6px;padding:1px 6px}.note{border-left:3px solid var(--green);background:var(--green-soft);border-radius:0 12px 12px 0;padding:16px 20px;font-size:15px;color:var(--green-dark);margin:24px 0}.warn{border-left:3px solid var(--amber);background:var(--amber-soft);border-radius:0 12px 12px 0;padding:16px 20px;font-size:15px;color:#6b4300;margin:24px 0}details.faq{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:4px 22px;margin-bottom:12px}details.faq summary{cursor:pointer;font-weight:620;padding:14px 0;list-style:none}details.faq 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span:last-child{font-size:16px}}