:root{--ink:#172d29;--muted:#61706b;--line:#dfe5e1;--paper:#f8faf8;--accent:#236a50;--accent-soft:#edf5ef;--rail:238px;font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;color:var(--ink);font-size:15px;line-height:1.75;scroll-behavior:smooth}
*{box-sizing:border-box}body{margin:0;background:#fff}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:4px}button,input,select{font:inherit}button,summary{cursor:pointer}button:disabled{cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #c19240;outline-offset:3px}code,pre{font-family:"Cascadia Code",Consolas,monospace;font-size:.9em;overflow-wrap:anywhere}code{background:var(--paper);padding:2px 5px;border-radius:4px}p{margin:10px 0 18px}h1,h2,h3{line-height:1.3;letter-spacing:-.025em}h1{font-size:clamp(34px,4vw,54px);font-weight:650;margin:14px 0 22px}h2{font-size:27px;font-weight:650;margin:0 0 20px}h3{font-size:17px;margin:0 0 12px}section{scroll-margin-top:28px}.sidebar{width:var(--rail);position:fixed;inset:0 auto 0 0;background:var(--paper);border-right:1px solid var(--line);padding:35px 26px;display:flex;flex-direction:column}.brand{font-family:Georgia,serif;font-size:26px;font-weight:bold;color:var(--ink);letter-spacing:-1px}.brand span{display:block;font-family:"Microsoft YaHei",sans-serif;font-weight:400;font-size:12px;letter-spacing:.06em;color:var(--muted);margin-top:8px}.sidebar nav{display:grid;gap:8px;margin-top:55px}.sidebar nav a{color:var(--muted);padding:9px 12px;border-radius:6px}.sidebar nav a:hover,.sidebar nav a.active{color:var(--accent);background:var(--accent-soft);text-decoration:none}.sidebar-footer{margin-top:auto;font-size:12px;color:var(--muted)}.sidebar-footer a{display:block;margin-top:14px}main{margin-left:var(--rail);max-width:1390px;padding:0 7%}.masthead{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding:27px 0;color:var(--muted);font-size:12px}.intro{padding:55px 0 48px}.eyebrow{color:var(--accent);font-size:11px;letter-spacing:.13em;font-weight:700;margin:0 0 10px}.lead{font-size:17px;color:var(--muted);max-width:650px}.paths{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:32px}.path{color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:23px 25px;transition:background .16s,border-color .16s}.path:hover{background:var(--paper);border-color:#8ea99c;text-decoration:none}.step{float:right;font-family:Georgia,serif;font-size:27px;color:#a3b1a9}.path strong{font-size:20px;display:block}.path p{font-size:13px;color:var(--muted);margin:8px 0 21px}.path-link{font-size:13px;color:var(--accent)}.essentials{display:flex;gap:20px;padding-top:25px;align-items:baseline;font-size:13px}.essentials strong{white-space:nowrap}.essentials p{color:var(--muted);margin:0}.section{padding:42px 0;border-top:1px solid var(--line)}.section-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.status-dot{white-space:nowrap;font-size:11px;padding-top:22px;color:var(--accent)}.status-dot:before{content:"";display:inline-block;width:6px;height:6px;background:var(--accent);border-radius:50%;margin-right:8px}.muted{color:var(--muted);font-size:13px}.tabs{display:flex;border-bottom:1px solid var(--line);gap:24px;margin-top:26px}.tabs button{background:none;border:0;border-bottom:2px solid transparent;margin-bottom:-1px;padding:12px 0;color:var(--muted);font-size:14px}.tabs button[aria-selected=true]{color:var(--accent);border-color:var(--accent);font-weight:bold}.filters{display:grid;grid-template-columns:1.2fr .7fr 1fr;gap:16px;padding:22px 0}.filters label,.variant-label{font-size:12px;color:var(--muted);display:grid;gap:7px}select,input{min-width:0;width:100%;border:1px solid #cbd5cf;border-radius:6px;padding:9px 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13px;white-space:nowrap;font-size:12px}.button.secondary{background:white;color:var(--accent);border-color:#baccc0}.catalog-foot{display:flex;justify-content:space-between;gap:14px;font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;margin-top:18px}.plain-details{font-size:13px;margin-top:22px}.plain-details summary{color:var(--accent)}.plain-details p{color:var(--muted)}.flow{display:flex;gap:28px;margin:24px 0;padding-left:20px;color:var(--muted);font-size:12px;flex-wrap:wrap}.endpoint{display:flex;align-items:center;gap:16px;background:var(--paper);border:1px solid var(--line);padding:15px 18px;border-radius:7px;margin:24px 0}.endpoint>span{font-size:11px;font-weight:bold;color:var(--accent)}.endpoint>a{margin-left:auto;font-size:12px}.two-column{display:grid;grid-template-columns:1.1fr 1fr;gap:38px;font-size:13px;padding-top:5px}.two-column p{color:var(--muted)}.callout{border-left:3px solid #c3a16b;padding-left:16px!important;margin-top:23px!important;font-size:12px}.reference-card{border:1px solid var(--line);border-radius:8px;padding:22px}.reference-card>a,.reference-card details>a{display:block;font-size:13px;padding:7px 0}.reference-card details{border-top:1px solid var(--line);margin-top:12px;padding-top:14px}.reference-card summary{color:var(--muted);font-size:12px}.field-list{display:grid;grid-template-columns:115px 1fr;gap:10px 14px;margin:0}.field-list dd{margin:0;color:var(--muted)}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:13px;text-align:left}td,th{padding:13px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{background:var(--paper);font-size:12px}td:first-child{min-width:125px}.text-link{display:inline-block;font-size:13px;margin-top:17px}.reference-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.reference-grid>a{border:1px solid 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h2{font-size:23px}.icon-button{border:0;background:var(--paper);border-radius:6px;width:34px;height:34px;font-size:24px}.variant-label{margin:20px 0}.example-head{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-top:28px}.example-head h3{margin:0}pre{padding:20px;background:#18312c;color:#e2f0e6;border-radius:7px;overflow:auto;white-space:pre-wrap;line-height:1.65;font-size:12px}.format-note{font-size:12px;color:var(--muted)}.required-badge{font-size:10px;border:1px solid #a7c6b4;border-radius:4px;color:var(--accent);padding:2px 5px;white-space:nowrap}.dialog-links{font-size:12px;display:flex;gap:16px;flex-wrap:wrap}body.dialog-open{overflow:hidden}[hidden]{display:none!important}
@media(max-width:1100px){:root{--rail:205px}main{padding:0 5%}.sidebar{padding:28px 20px}.two-column{gap:24px}.catalog-row{grid-template-columns:minmax(0,1fr) minmax(0,.8fr) auto}.catalog-row .row-note{grid-column:1/-1;grid-row:2}.section-heading h2{font-size:24px}}
@media(max-width:760px){.sidebar{position:relative;width:auto;inset:auto;border:0;border-bottom:1px solid var(--line);padding:18px 20px}.brand{font-size:23px}.brand span{display:inline;font-size:11px;margin-left:14px}.sidebar nav{display:flex;overflow:auto;gap:12px;margin-top:17px}.sidebar nav a{white-space:nowrap;padding:5px 0;font-size:12px}.sidebar-footer{display:none}main{margin:0;padding:0 20px}.masthead{padding:18px 0;font-size:11px}.intro{padding:34px 0}.lead{font-size:15px}.paths{gap:12px;margin-top:24px}.path{padding:17px 15px}.path strong{font-size:17px}.path p{font-size:11px}.step{font-size:22px}.essentials{display:block}.essentials strong{display:block;margin-bottom:6px}.section{padding:33px 0}h2{font-size:23px}.section-heading{display:block}.status-dot{display:block;padding:0 0 6px}.tabs{gap:20px}.tabs button{font-size:12px}.filters{grid-template-columns:1.3fr 1fr;gap:12px}.filters label:last-child{grid-column:1/-1}.catalog-row{grid-template-columns:minmax(0,1fr) auto;gap:9px}.catalog-row .row-code{grid-column:1;grid-row:2}.catalog-row .row-note{grid-row:3}.catalog-row .button{grid-column:2;grid-row:1/3}.catalog-foot,footer{flex-direction:column;gap:8px}.two-column,.reference-grid{grid-template-columns:1fr;gap:22px}.flow{gap:12px 27px}.endpoint{flex-wrap:wrap;gap:9px;font-size:12px}.endpoint>a{width:100%;margin-left:0}.field-list{grid-template-columns:105px 1fr}.skip-link{left:15px}dialog{padding:21px}td,th{padding:11px 7px}.dialog-header h2{font-size:21px}.reference-card{padding:18px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}.path{transition:none}}
@media print{.sidebar,.masthead,.filters,.tabs button,.button,dialog{display:none!important}main{margin:0;padding:0}.section{break-inside:avoid}a{color:inherit}.paths{grid-template-columns:1fr 1fr}}