:root{--navy:#080e18;--mint:#9bffe5;--ink:#192b37;--muted:#526674;--line:#dae3e7;--accent:#126651;--paper:#fff;--bg:#f5f7f8;font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.85}a{color:var(--accent);text-underline-offset:4px;overflow-wrap:anywhere}a:hover{color:#0a4436}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #19866b;outline-offset:4px}header{height:76px;background:var(--navy);color:#eaf3f8;position:sticky;top:0;z-index:10;border-bottom:1px solid #20323d}.header-inner{max-width:1280px;margin:auto;height:100%;padding:0 32px;display:flex;align-items:center;gap:24px}.brand{font-size:23px;font-weight:750;letter-spacing:1.4px;color:#f4f8fc;text-decoration:none;white-space:nowrap}.brand span{color:var(--mint)}.brand:hover{color:var(--mint)}.header-label{color:#b9c8d2;font-size:14px;border-left:1px solid #40505c;padding-left:24px}header nav{margin-left:auto;display:flex;gap:28px}header nav a{font-size:14px;color:#d4e2e9;text-decoration:none}header nav a:hover{color:var(--mint)}.layout{display:grid;grid-template-columns:238px minmax(0,1fr);gap:42px;max-width:1280px;margin:auto;padding:38px 32px 0}aside nav{position:sticky;top:110px;max-height:calc(100vh - 138px);overflow:auto}.nav-label{font-size:12px;letter-spacing:1px;color:var(--muted);margin:0 0 12px 12px}aside a{display:block;padding:8px 12px;font-size:14px;color:#415865;text-decoration:none;border-left:2px solid transparent;line-height:1.6}aside a:hover,aside a[aria-current="location"]{color:#0c5644;background:#e5f1ed;border-left-color:#168267}.back-top{margin-top:20px;border-top:1px solid var(--line);padding-top:16px}main{min-width:0;background:var(--paper);border:1px solid var(--line);border-bottom:0;padding:38px 42px 0}section{scroll-margin-top:104px;padding:0 0 36px;margin:0 0 36px;border-bottom:1px solid var(--line)}section:last-of-type{border:0;margin-bottom:0}.eyebrow{color:var(--accent);font-size:12px;font-weight:650;letter-spacing:1.2px}h1{font-size:34px;line-height:1.4;letter-spacing:-.5px;margin:12px 0 10px}h2{font-size:24px;line-height:1.5;margin:0 0 22px;font-weight:650}h3{font-size:18px;line-height:1.5;margin:28px 0 14px}p{margin:14px 0;overflow-wrap:anywhere}.lead{font-size:17px;color:var(--muted)}.meta{font-size:12px;color:var(--muted);margin-bottom:28px}.important{font-weight:600}.url{display:grid;gap:2px;margin:12px 0}.url span{font-size:14px;color:var(--muted)}.url a{font-size:15px}.copy-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px 18px;background:#edf5f2;border:1px solid #bfd7ce;border-radius:5px}.copy-row code{font-size:16px;overflow-wrap:anywhere}.copy-row button{white-space:nowrap;min-height:44px;padding:6px 12px;background:#fff;border:1px solid #9dbdb1;border-radius:4px;color:#105b47;font-size:14px}figure{margin:24px 0}figure.narrow{max-width:400px;margin-left:auto;margin-right:auto}.figure-button{display:block;width:100%;padding:0;border:1px solid #cbd6dc;background:#fff;border-radius:4px;overflow:hidden;cursor:zoom-in}.figure-button:hover{border-color:#168267}.figure-button svg{width:100%;height:auto;display:block}figcaption{font-size:13px;color:var(--muted);margin-top:9px;line-height:1.6}figcaption span{display:block;font-size:12px;color:#126651}.table-wrap{overflow:auto;margin:22px 0;border:1px solid var(--line);border-radius:4px}table{border-collapse:collapse;width:100%;font-size:14px;text-align:left;line-height:1.85}th,td{padding:13px 16px;vertical-align:top;border-bottom:1px solid var(--line)}th{background:#eef3f4;font-weight:650}td:first-child{min-width:114px;width:23%;font-weight:550}tr:last-child td{border-bottom:0}footer{padding:22px 0;font-size:12px;color:var(--muted);border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px}dialog{width:min(96vw,1600px);max-width:96vw;max-height:94vh;padding:0;border:1px solid #485e6a;border-radius:8px;color:var(--ink);background:#f5f7f8}dialog::backdrop{background:#07111bd9}.dialog-toolbar{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:12px 18px;border-bottom:1px solid var(--line);background:white}.dialog-toolbar p{margin:0;font-size:14px}.dialog-toolbar>div{display:flex;gap:8px;flex-shrink:0}.dialog-toolbar button{min-height:44px;border:1px solid #bccbd1;border-radius:4px;background:white;padding:6px 12px;font-size:14px}.dialog-toolbar button:hover{background:#e5f1ed}#image-stage{overflow:auto;max-height:calc(94vh - 145px);padding:18px}#image-stage svg{display:block;width:100%;height:auto;max-width:100%;margin:auto;background:white}#image-stage.original svg{width:var(--natural-width);max-width:none}.dialog-help{font-size:12px;color:var(--muted);margin:10px 18px}#status{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:#143b30;color:white;padding:10px 20px;border-radius:5px;z-index:30;max-width:90vw}#status:empty{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;left:16px;top:-100px;background:#fff;padding:12px;z-index:50}.skip:focus{top:10px}
@media(max-width:1050px){.layout{grid-template-columns:200px minmax(0,1fr);gap:22px;padding:26px 24px 0}main{padding:28px 28px 0}h1{font-size:30px}}
@media(max-width:760px){header{height:66px}.header-inner{padding:0 18px;gap:14px}.brand{font-size:19px}.header-label{display:none}header nav{gap:18px}header nav a{font-size:13px}.layout{display:block;padding:20px 16px 0}aside nav{position:static;max-height:none;display:grid;grid-template-columns:1fr 1fr;margin-bottom:22px;border-bottom:1px solid var(--line);padding-bottom:18px}.nav-label{grid-column:1/-1}.back-top{display:none}aside a{font-size:13px;padding:8px}.layout main{padding:24px 18px 0}h1{font-size:27px}h2{font-size:22px}body{font-size:15px}section{scroll-margin-top:86px;padding-bottom:28px;margin-bottom:28px}.copy-row{flex-wrap:wrap;padding:12px}.copy-row code{font-size:14px}th,td{padding:10px;font-size:13px}td:first-child{min-width:82px}.dialog-toolbar{flex-wrap:wrap;gap:8px;padding:10px 12px}.dialog-toolbar>div{width:100%;justify-content:flex-end}#image-stage{padding:8px;max-height:calc(94vh - 190px)}footer{flex-wrap:wrap}}
@media print{header,aside,.skip,dialog,#status,figcaption span{display:none}.layout{display:block;padding:0}main{padding:0;border:0}section{break-inside:auto}figure,table{break-inside:avoid}.copy-row button{display:none}body{background:#fff}a{color:inherit;text-decoration:none}}