:root{--ink:#17242b;--muted:#5d6b72;--paper:#f5f5f0;--line:#dce1df;--accent:#e5b83b;--green:#245448}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.75 Arial,"PingFang SC",sans-serif}a{color:var(--green);text-underline-offset:4px}a:hover{color:#946400}header{background:var(--ink);color:white;padding:21px max(5vw,20px);display:flex;gap:20px;align-items:center;justify-content:space-between}header a{color:white;text-decoration:none}.logo{font-size:23px;letter-spacing:2px;font-weight:900}.flag{font-size:12px;letter-spacing:.1em;color:var(--accent)}main{max-width:1180px;margin:0 auto;padding:44px 28px 64px}.eyebrow{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.13em;color:var(--green)}h1{font-size:clamp(30px,4.1vw,52px);line-height:1.15;letter-spacing:-.035em;max-width:940px;margin:16px 0 24px}h2{font-size:25px;line-height:1.35;margin:32px 0 12px;letter-spacing:-.02em}h3{line-height:1.4}p{margin:0 0 18px}.lead{font-size:19px;max-width:830px;color:var(--muted)}.notice{padding:17px 22px;border-left:4px solid var(--accent);background:#fff9e7;margin:22px 0;font-size:14px}.metrics{display:flex;gap:34px;flex-wrap:wrap;margin:30px 0}.metrics b{display:block;font-size:30px;line-height:1.3}.metrics span{font-size:13px;color:var(--muted)}.toolbar{display:flex;gap:16px;flex-wrap:wrap;align-items:center;margin:26px 0}input{font:inherit;padding:12px 16px;background:white;border:1px solid #adb9b5;border-radius:4px;flex:1;min-width:220px}.button{display:inline-block;background:var(--ink);color:white;padding:11px 18px;text-decoration:none;border-radius:3px;font-size:14px}.button:hover{color:var(--accent)}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.card{background:white;padding:27px;border:1px solid var(--line);border-radius:5px;display:flex;flex-direction:column}.card h2{font-size:22px;margin:10px 0}.card .zh{font-size:14px;color:var(--muted)}.card p{font-size:15px}.card .bottom{margin-top:auto;padding-top:17px;display:flex;justify-content:space-between;align-items:center}.tag{display:inline-block;font-size:12px;padding:3px 9px;background:#edf2ef;color:#35584d;border-radius:3px;margin:3px 5px 3px 0}.index-no{font:700 12px monospace;color:#747f82;letter-spacing:.1em}.table-wrap{overflow:auto}table{border-collapse:collapse;background:white;width:100%;font-size:14px}td,th{padding:13px 16px;border:1px solid var(--line);text-align:left;vertical-align:top}th{background:#e9eeea}.layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:54px;align-items:start}.article{background:white;padding:32px 38px;border:1px solid var(--line);border-radius:4px}.article h2:first-child{margin-top:0}.article p,.article li{font-size:17px}.article li{margin:8px 0}.reference{font-size:13px!important;color:var(--muted)}aside{position:sticky;top:24px;font-size:14px}aside a{display:block;margin:10px 0}aside img{width:100%;height:190px;object-fit:contain;background:white;border:1px solid var(--line)}aside h3{font-size:15px;margin:20px 0 10px}.cta{margin-top:28px;padding:24px;background:#eaf0ec;border-top:3px solid var(--green)}.cta h2{margin-top:0}.toc{padding:0;list-style:none}.toc a{font-size:13px;color:var(--muted)}details{background:white;border:1px solid var(--line);padding:15px 20px;margin:22px 0}summary{cursor:pointer;font-weight:bold}.review-fields{padding-top:14px;font-size:14px}.article-nav{display:flex;justify-content:space-between;gap:20px;margin-top:32px;font-size:14px}.small{font-size:13px;color:var(--muted)}footer{padding:26px max(5vw,20px);border-top:1px solid var(--line);font-size:13px;color:var(--muted)}.empty{display:none;padding:30px}.hidden{display:none!important}body.article-page main{max-width:1200px}ul{padding-left:23px}@media(max-width:850px){.layout{grid-template-columns:1fr;gap:28px}aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:22px}aside .toc-block{display:none}.grid{grid-template-columns:1fr}.article{padding:26px 22px}main{padding:30px 18px}header{padding:17px 18px}.flag{font-size:10px}.article p,.article li{font-size:16px}}@media(max-width:450px){aside{grid-template-columns:1fr}.metrics{gap:24px}header .logo{font-size:19px}}@media print{header,aside,details,.article-nav,.toolbar,footer,.flag{display:none}.layout{display:block}.article{border:0;padding:0}body{background:white}main{padding:0}h2{break-after:avoid}.cta{break-inside:avoid}}
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.hero-figure{margin:0 0 28px}.hero-figure img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:3px}.hero-figure figcaption{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.55}

.inline-figure{margin:30px 0}.inline-figure img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:3px}.inline-figure figcaption{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.55}

/* Keep editorial figures inside the article card at every breakpoint. */
.article{overflow:hidden}.hero-figure,.inline-figure{display:block;max-width:100%;margin-left:0;margin-right:0}.hero-figure img,.inline-figure img{display:block;box-sizing:border-box;width:100%;max-width:100%;height:auto;object-fit:cover}

/* Shared footer for Knowledge Zone and every published guide. */
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/* Editorial pages use the homepage navigation and footer system. */
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