:root{color-scheme:light;--paper:#fafbf8;--ink:#172f28;--muted:#64716a;--line:#dfe5dd;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,'PingFang SC','Microsoft YaHei',sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);line-height:1.85;-webkit-font-smoothing:antialiased}a{color:#285d46;text-underline-offset:4px}a:focus-visible{outline:3px solid #72a88a;outline-offset:4px}.document-nav{border-bottom:1px solid var(--line)}.document-nav>div{max-width:1000px;padding:24px 32px;margin:auto;display:flex;justify-content:space-between;gap:20px;align-items:center}.document-brand{font-size:24px;font-weight:750;letter-spacing:-1px;text-decoration:none;color:var(--ink)}.back-link{font-size:12px;text-decoration:none}.container{max-width:820px;padding:0 32px 65px;margin:auto}.header{padding:52px 0 30px;margin-bottom:32px;border-bottom:1px solid var(--line)}.document-label{font-size:10px;color:var(--muted);letter-spacing:2px;text-transform:uppercase;margin:0 0 16px}.header h1{font-size:42px;line-height:1.2;letter-spacing:-1.4px;font-weight:600;margin:0}.document-languages{display:flex;gap:8px;margin-top:26px}.document-languages a{font-size:12px;padding:6px 13px;border:1px solid transparent;border-radius:20px;text-decoration:none;color:var(--muted)}.document-languages a[aria-current]{border-color:#d4e0d1;background:#edf3e8;color:var(--ink)}.content{font-size:15px;color:#4e5f56;overflow-wrap:anywhere}.content h2{font-size:23px;line-height:1.45;font-weight:600;letter-spacing:-.5px;margin:42px 0 16px;color:var(--ink)}.content h3{font-size:17px;margin:27px 0 10px;color:var(--ink)}.content p{margin:14px 0}.content>p:first-child{font-size:13px;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:#f1f5ed}.content strong{color:var(--ink);font-weight:600}.content ul,.content ol{padding-left:23px;margin:16px 0}.content li{padding-left:4px;margin-block:8px}.content blockquote{border-left:2px solid #a9c1ad;margin:22px 0;padding:2px 18px;color:var(--muted);font-size:13px}.content hr{border:0;border-top:1px solid var(--line);margin:30px 0}.table-wrap{max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;border:1px solid var(--line);border-radius:10px;margin:20px 0}.content table{width:100%;min-width:560px;border-collapse:collapse;font-size:12px;line-height:1.8}.content td,.content th{padding:13px 15px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);text-align:left;vertical-align:top}.content tr:last-child td{border-bottom:0}.content td:last-child,.content th:last-child{border-right:0}.content th{background:#edf2e9;font-weight:600;color:var(--ink)}.document-related{margin-top:42px;border-top:1px solid var(--line);padding-top:24px;display:flex;flex-wrap:wrap;gap:16px 24px;font-size:12px}.document-related a{min-height:35px}.document-related a[aria-current]{font-weight:650;text-decoration:none}.footer{max-width:1000px;padding:28px 32px;margin:auto;border-top:1px solid var(--line);font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:20px}.footer p{margin:0}.footer a{color:inherit}@media(max-width:600px){.document-nav>div{padding:20px}.document-brand{font-size:23px}.container{padding:0 22px 45px}.header{padding:35px 0 25px;margin-bottom:25px}.header h1{font-size:31px;letter-spacing:-.7px}.document-label{font-size:9px;margin-bottom:14px}.document-languages{margin-top:22px}.content{font-size:14px}.content h2{font-size:21px;margin-top:34px}.content h3{font-size:16px}.content>p:first-child{font-size:12px;padding:16px}.footer{padding:25px 22px;display:block}.footer p+p{margin-top:8px}.document-related{gap:10px 20px}}