:root{color-scheme:light;--paper:#fff;--white:#fff;--ink:#24292f;--muted:#667079;--green:#1d63b1;--green-dark:#154b89;--mint:#f2f6fb;--line:#e5e7eb;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.7;color:var(--ink)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:84px}body{margin:0;background:#fff}body.dialog-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,summary{touch-action:manipulation}button,summary{cursor:pointer}button{color:inherit}button,input{border-radius:0}a,button,input,summary,[tabindex]{outline-offset:4px}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid #1d63b1}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.5}img{max-width:100%;height:auto}svg.icon{display:inline-block;vertical-align:middle;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}[hidden]{display:none!important}.page-width{max-width:1240px;margin:0 auto;padding-left:32px;padding-right:32px}.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-link{position:fixed;z-index:100;left:12px;top:10px;background:#fff;padding:7px 14px;transform:translateY(-180%);border:1px solid #1d63b1}.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:20}.header-inner{max-width:1320px;margin:auto;padding:14px 32px;display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:68px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:650;font-size:20px;line-height:1.3;white-space:nowrap}.brand-mark{width:29px;height:31px;display:grid;place-items:center;background:#1d63b1;color:#fff;font-family:"Trebuchet MS",sans-serif;font-size:26px;line-height:1;border-radius:4px;font-weight:700}.brand-sub{margin-left:13px;padding-left:13px;border-left:1px solid #d3d8de;font-size:14px;font-weight:400;color:var(--muted);vertical-align:middle}.top-nav{display:flex;gap:26px;margin-left:auto;font-size:13px}.top-nav a:hover,.footer-links a:hover{color:#1d63b1;text-decoration:underline;text-underline-offset:4px}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;background:#1d63b1;color:#fff;padding:9px 16px;border:1px solid #1d63b1;border-radius:4px;font-size:13px;font-weight:500;line-height:1.5;cursor:pointer}.button>.icon{width:17px;height:17px}.button:hover{background:#154b89;border-color:#154b89}.button-small{padding:8px 12px;font-size:12px}.button-outline{background:#fff;color:#1d63b1}.button-outline:hover{background:#f2f6fb;color:#154b89}.text-button{display:inline-flex;gap:6px;align-items:center;color:#1d63b1;background:transparent;border:0;font-size:13px;padding:5px 0}.text-button .icon{width:14px;height:14px}.text-button:hover{text-decoration:underline;text-underline-offset:3px}.eyebrow{font-size:12px;color:var(--muted);font-weight:400}.muted{color:var(--muted)}
.help-layout{display:grid;grid-template-columns:174px minmax(0,1fr);gap:52px;padding-top:40px;padding-bottom:50px}.help-sidebar{position:sticky;top:108px;align-self:start}.help-sidebar nav{display:flex;flex-direction:column;gap:4px}.help-sidebar nav>p{font-size:12px;color:#7a818b;padding:0 10px;margin-bottom:8px}.help-sidebar nav>a{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:8px 10px;color:#454b54}.help-sidebar nav>a span{font-size:11px;color:#8a929a}.help-sidebar nav>a:hover{color:#1d63b1;background:#f5f7fa}.sidebar-help{margin:28px 10px 0;padding-top:22px;border-top:1px solid var(--line)}.sidebar-help h2{font-size:13px;font-weight:500;margin-bottom:8px}.sidebar-help p{font-size:12px;line-height:1.8;color:var(--muted)}.sidebar-help .text-button{font-size:12px;margin-top:7px}.help-main{min-width:0}.help-intro{padding:0 0 25px}.help-intro h1{font-size:31px;font-weight:600;letter-spacing:0;margin-bottom:9px}.help-intro>p{font-size:15px;color:var(--muted)}.intro-links{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:19px;font-size:13px;color:#1d63b1}.intro-links>a:hover{text-decoration:underline;text-underline-offset:4px}.guide-library{scroll-margin-top:12px}.search-wrap{display:flex;align-items:center;gap:11px;background:#fff;border:1px solid #c9cdd3;border-radius:4px;padding:0 13px;height:46px}.search-wrap:focus-within{border-color:#1d63b1;outline:1px solid #1d63b1}.search-wrap .icon{color:#7a838e;width:18px;height:18px}.search-wrap input{border:0;outline:none;background:transparent;width:100%;height:100%;font-size:14px;color:var(--ink);min-width:0}.search-wrap input::placeholder{color:#8b929b}.search-wrap input:focus-visible{outline:none}.search-wrap kbd{font-family:"Trebuchet MS",sans-serif;color:#9299a2;border:1px solid var(--line);padding:0 6px;font-size:12px}.category-filters{display:flex;gap:23px;margin-top:17px;border-bottom:1px solid var(--line);flex-wrap:wrap}.category-filters button{display:inline-flex;align-items:center;gap:7px;border:0;border-bottom:2px solid transparent;background:transparent;padding:9px 0 11px;font-size:13px;color:#626a74;min-height:43px}.category-filters button span{font-size:10px;color:#959ca5}.category-filters button[aria-pressed="true"]{border-bottom-color:#1d63b1;color:#1d63b1;font-weight:600}.category-filters button:hover{color:#1d63b1}.search-status{font-size:12px;color:#8a929a;padding:16px 0 0}.guide-category{margin-top:28px;scroll-margin-top:88px}.category-heading{display:flex;align-items:baseline;gap:18px;margin-bottom:3px}.category-heading h2{font-size:20px;font-weight:600;flex-shrink:0}.category-heading p{font-size:12px;color:var(--muted)}.guide-rows{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:34px}.guide-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid #edf0f3;min-height:99px}.guide-row>div{min-width:0}.guide-row h3{font-size:16px;font-weight:500;color:#1d63b1}.guide-row p{font-size:12px;color:#767e88;line-height:1.8;margin-top:6px;max-width:360px}.row-arrow{font-size:22px;color:#a0a7af;font-weight:300}.guide-row:hover h3{text-decoration:underline;text-underline-offset:4px}.guide-row:hover .row-arrow{color:#1d63b1}.search-empty{padding:40px 0}.search-empty h2{font-size:19px;font-weight:500}.search-empty p{color:var(--muted);font-size:14px;margin-top:8px}.search-empty .button{margin-top:20px}.page-preview{margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}.plain-section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.plain-section-heading h2,.home-faq>h2{font-size:21px;font-weight:600}.plain-section-heading>a{font-size:13px;color:#1d63b1}.page-preview>p{font-size:13px;color:var(--muted);margin-top:9px}.page-shots{display:flex;gap:16px;overflow-x:auto;max-width:100%;padding:20px 0 12px;align-items:flex-start}.page-shots figure{flex:1 0 135px;min-width:0;max-width:180px}.page-shots .screenshot{width:100%}.page-shots figcaption{text-align:center;font-size:13px;margin-top:10px}.page-shots figcaption a{color:#1d63b1}.page-preview>p.image-disclosure{font-size:11px;margin-top:9px}.screenshot{display:block;position:relative;border:1px solid #e2e5e8;border-radius:4px;padding:0;background:#f6f7f9;overflow:hidden;line-height:0;cursor:zoom-in}.screenshot img{display:block;width:100%;height:auto}.screenshot>.icon{position:absolute;right:6px;bottom:6px;box-sizing:content-box;padding:5px;background:#fffffff2;border:1px solid #e2e5e8;border-radius:3px;width:13px;height:13px;color:#5c6570}.screenshot:hover{border-color:#8996a5}.home-faq{margin-top:33px;padding-top:27px;border-top:1px solid var(--line)}.home-faq>h2{margin-bottom:16px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{padding:16px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:14px;font-weight:400;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary .icon{width:16px;height:16px;color:#8a929a}.faq-list details[open] summary .icon{transform:rotate(45deg)}.faq-list details p{font-size:14px;color:#667079;line-height:1.9;padding:0 26px 19px 0}
.site-footer{border-top:1px solid var(--line);padding:24px max(32px,calc((100vw - 1176px)/2)) 16px;background:#fafbfc}.footer-main{display:flex;justify-content:space-between;gap:28px;align-items:center;font-size:12px}.footer-main>p{display:flex;align-items:center;gap:18px}.footer-main strong{font-weight:500}.footer-main>p>span{font-size:11px;color:#8a929a}.footer-links{display:flex;gap:23px;color:#667079;font-size:12px}.footer-note{font-size:11px;color:#8a929a;line-height:1.9;margin-top:13px}.site-icp-footer{background:#fafbfc!important;padding:0 20px 20px!important}.site-icp-footer a{font-size:10px!important;color:#818994!important}dialog{border:1px solid #dfe3e8;padding:23px;color:var(--ink);background:#fff;border-radius:6px;max-width:calc(100vw - 28px);max-height:92dvh}dialog::backdrop{background:#0008}#code-dialog{width:420px}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.dialog-heading h2{font-size:20px;font-weight:500;margin-top:4px}.dialog-heading .eyebrow{font-size:11px}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;flex-shrink:0;border:1px solid #dfe3e8;border-radius:4px;background:#fff;cursor:pointer}.icon-button:hover{background:#f4f6f8}.icon-button>.icon{width:18px;height:18px}#code-dialog>img{display:block;width:100%;height:auto;margin:16px 0 10px}#code-dialog>p{text-align:center;font-size:13px}#code-dialog>p.small{font-size:11px;margin-top:9px}#image-viewer{width:650px;padding:16px;text-align:center}#image-viewer>.dialog-close{position:sticky;top:0;float:right;margin-bottom:10px;z-index:2}#image-viewer>img{display:block;max-height:76dvh;width:auto;max-width:100%;margin:0 auto;object-fit:contain}#image-viewer>p{font-size:12px;color:var(--muted);margin-top:12px}
@media(max-width:1050px){.help-layout{gap:32px;grid-template-columns:150px minmax(0,1fr)}.top-nav{gap:20px}.top-nav a:last-child{display:none}.guide-rows{column-gap:24px}.guide-row{min-height:110px}.category-heading{display:block}.category-heading p{margin-top:5px}.page-shots{gap:12px}.page-shots figure{flex-basis:125px}.header-inner{gap:20px}.brand-sub{font-size:12px}}
@media(max-width:760px){html{scroll-padding-top:76px}.page-width{padding-left:22px;padding-right:22px}.header-inner{padding:13px 22px;min-height:62px;gap:15px}.brand{font-size:18px;gap:8px}.brand-mark{width:26px;height:28px;font-size:23px}.brand-sub{font-size:12px;margin-left:10px;padding-left:10px}.top-nav{display:none}.button-small{font-size:11px;padding:7px 10px;gap:6px}.button-small>.icon{width:15px;height:15px}.help-layout{display:block;padding-top:29px;padding-bottom:32px}.help-sidebar{display:none}.help-intro{padding-bottom:21px}.help-intro h1{font-size:27px;margin-bottom:8px}.help-intro>p{font-size:14px}.intro-links{font-size:12px;gap:7px 17px;margin-top:16px}.search-wrap{height:45px;padding:0 11px}.search-wrap input{font-size:13px}.search-wrap kbd{display:none}.category-filters{gap:18px;margin-top:12px;flex-wrap:nowrap;overflow-x:auto;white-space:nowrap}.category-filters button{font-size:12px;gap:5px;padding-bottom:10px}.category-filters button span{font-size:9px}.search-status{font-size:11px;padding-top:13px}.guide-category{margin-top:25px;scroll-margin-top:78px}.category-heading h2{font-size:19px}.category-heading p{font-size:12px;line-height:1.8}.guide-rows{grid-template-columns:1fr}.guide-row{padding:15px 0;min-height:82px}.guide-row h3{font-size:16px}.guide-row p{font-size:12px;max-width:none;margin-top:5px}.row-arrow{font-size:20px}.page-preview{margin-top:33px;padding-top:24px}.plain-section-heading h2,.home-faq>h2{font-size:20px}.plain-section-heading>a{font-size:12px}.page-preview>p{font-size:12px}.page-shots{gap:13px}.page-shots figure{flex:0 0 145px}.page-shots figcaption{font-size:12px}.home-faq{margin-top:27px;padding-top:23px}.faq-list summary{font-size:13px;gap:12px}.faq-list details p{font-size:13px;padding-right:4px}.site-footer{padding:20px 22px 14px}.footer-main{align-items:flex-start;flex-direction:column;gap:13px}.footer-main>p{gap:12px}.footer-note{font-size:10px}.footer-links{font-size:11px;gap:24px}.site-icp-footer{gap:7px!important}.site-icp-footer a{font-size:9px!important}.dialog-heading h2{font-size:18px}dialog{padding:18px}}
@media(max-width:360px){.page-width{padding-left:18px;padding-right:18px}.header-inner{padding-left:18px;padding-right:18px}.brand-sub{font-size:11px;margin-left:8px;padding-left:8px}.category-filters{gap:14px}.category-filters button{font-size:11px}.help-intro h1{font-size:25px}.intro-links{gap:6px 13px;font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
/* Role-based documentation, October 2026. */
.role-tabs{display:flex;gap:23px;border-bottom:1px solid var(--line);margin-bottom:27px}.role-tabs>a{padding:0 0 13px;font-size:14px;color:#747d88;border-bottom:2px solid transparent;margin-bottom:-1px}.role-tabs>a[aria-current]{border-color:#1d63b1;color:#1d63b1;font-weight:600}.role-tabs span{font-size:11px;color:#969da6;margin-left:5px}.top-nav a[aria-current]{color:#1d63b1}.scope-note{border-left:3px solid #bbcde2;background:#f7f9fc;padding:14px 18px;margin:0 0 25px;font-size:13px;line-height:1.9}.scope-note strong{font-weight:500}.scope-note p{color:#697585;margin:5px 0}.scope-note a{color:#1d63b1}.index-layout{max-width:980px;padding-top:42px;padding-bottom:55px}.index-layout .help-intro{max-width:760px}.index-layout .category-heading{margin-top:32px}.index-guide{display:block;font-size:11px;color:#8b95a2;margin-top:7px}.legacy-label{font-size:10px;font-weight:400;border:1px solid #d8dfe8;color:#8692a0;padding:2px 5px;border-radius:2px;margin-left:9px}.search-empty a{color:#1d63b1}.page-index-row p{max-width:750px}.help-sidebar nav>a{line-height:1.8}.help-intro .intro-links{flex-wrap:wrap}
@media(max-width:720px){.role-tabs{gap:21px;margin-bottom:23px}.role-tabs>a{font-size:13px}.index-layout{padding-top:26px}.scope-note{padding:12px 14px;font-size:12px}.index-guide{font-size:10px}.header-inner .top-nav{display:flex;position:static;gap:14px;overflow:auto;white-space:nowrap;grid-column:1/-1;grid-row:2;padding:11px 0 0;border-top:1px solid #edf0f4;margin-top:10px;width:100%}.header-inner{display:grid;grid-template-columns:1fr auto;padding-bottom:10px}.header-inner .top-nav a{font-size:11px}.header-inner .brand{grid-column:1;grid-row:1}.header-inner>.code-preview{grid-column:2;grid-row:1}.site-header{position:static}.page-shots{overflow-x:auto}.footer-links{flex-wrap:wrap}}