:root{color-scheme:light;--ink:#12323a;--muted:#58737a;--brand:#087e77;--brand-dark:#075f5b;--line:#d8e8e5;--surface:#f4faf8;--paper:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--surface);color:var(--ink);font:16px/1.75 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--brand-dark);text-underline-offset:3px}
a:hover{color:#034b47}
a:focus-visible,input:focus-visible{outline:3px solid #ecb65a;outline-offset:3px}
.wrap{width:min(100% - 32px,1040px);margin:auto}
.top{background:#fff;border-bottom:1px solid var(--line)}
.top .wrap{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{font-weight:800;font-size:20px;text-decoration:none;letter-spacing:.02em}
.nav{display:flex;gap:20px;flex-wrap:wrap;font-size:14px}
.crumb{margin:24px 0 12px;color:var(--muted);font-size:14px}
.crumb a{color:inherit}
.hero{background:linear-gradient(125deg,#e9faf6,#f9fdfc);border:1px solid var(--line);border-radius:24px;padding:clamp(28px,5vw,56px);margin-bottom:24px}
.eyebrow{font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.1em}
h1{font-size:clamp(28px,4.2vw,44px);line-height:1.24;letter-spacing:-.025em;margin:12px 0 16px}
.lede{font-size:18px;max-width:760px;margin:0;color:#31545b}
.meta{color:var(--muted);font-size:13px;margin-top:18px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:24px;align-items:start}
article,.side-box,.more{background:var(--paper);border:1px solid var(--line);border-radius:18px}
article{padding:clamp(22px,4vw,42px)}
article h2{font-size:25px;line-height:1.35;margin:34px 0 12px}
article h2:first-child{margin-top:0}
article h3{font-size:19px;line-height:1.45;margin:24px 0 8px}
article p,article ul,article ol{margin:10px 0 16px}
article li{margin:8px 0}
article strong{font-weight:750}
.note{background:#eef8f5;border-left:4px solid var(--brand);border-radius:0 12px 12px 0;padding:16px 18px;margin:24px 0}
.warning{background:#fff7e9;border-left-color:#bb760d}
.table-wrap{overflow-x:auto;margin:18px 0}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:15px}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#eef8f5}
.checklist{list-style:none;padding:0}
.checklist li{display:flex;gap:11px;border-bottom:1px solid var(--line);padding:12px 0;margin:0}
.checklist input{width:18px;height:18px;flex:none;margin-top:6px;accent-color:var(--brand)}
.side-box{padding:20px;position:sticky;top:16px}
.side-box h2{font-size:17px;margin:0 0 12px}
.side-box a{display:block;padding:8px 0;font-size:14px}
.more{padding:24px;margin:24px 0 40px}
.more h2{font-size:21px;margin:0 0 12px}
.more a{display:block;margin:8px 0}
.cta{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;padding:12px 20px;border-radius:10px;font-weight:700;margin-top:8px}
.cta:hover{background:var(--brand-dark);color:#fff}
.sources{font-size:14px;color:var(--muted);border-top:1px solid var(--line);margin-top:32px;padding-top:20px}
.foot{border-top:1px solid var(--line);padding:24px 0 36px;color:var(--muted);font-size:13px}
@media(max-width:760px){.layout{display:block}.side-box{position:static;margin-top:20px}.top .wrap{align-items:flex-start;padding:14px 0;flex-direction:column;gap:7px}.nav{gap:14px}.hero{border-radius:18px}article{border-radius:16px}article h2{font-size:22px}}
@media print{body{background:#fff}.top,.side-box,.more,.foot,.cta{display:none}.layout{display:block}.hero,article{border:0;padding:0}a{color:inherit}}