:root{--ink:#162d3c;--muted:#607380;--green:#087f59;--green-deep:#076a4b;--tint:#eaf6f0;--line:#dfe8e7;--soft:#f5f8f7;--navy:#082a55;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.75}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}button,a,input,summary{touch-action:manipulation}button{cursor:pointer}img{max-width:100%;height:auto}h1,h2,h3,p{margin-top:0;overflow-wrap:anywhere}h1{font-size:clamp(30px,3.2vw,42px);line-height:1.3;letter-spacing:-.04em;margin-bottom:16px}h2{font-size:24px;line-height:1.5;letter-spacing:-.02em}h3{font-size:18px;line-height:1.5}p{margin-bottom:18px}strong{font-weight:650}ul,ol{padding-left:1.5em}li{margin-bottom:9px}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #128764;outline-offset:4px}::selection{background:#cbeedb}section[id],h2[id],details[id]{scroll-margin-top:108px}[hidden]{display:none!important}
.skip-link{position:fixed;left:20px;top:-80px;z-index:100;background:var(--green);color:white;padding:10px}.skip-link:focus{top:10px}.hc-header{height:82px;position:sticky;top:0;z-index:20;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 40px}.brand{display:flex;align-items:center;gap:22px;color:var(--ink);flex-shrink:0}.brand:hover{text-decoration:none}.brand img{width:143px;height:48px;object-fit:contain}.brand-label{font-size:17px;font-weight:650;border-left:1px solid var(--line);padding-left:22px}.top-links{display:flex;align-items:center;gap:24px;font-size:14px}.top-links a{color:var(--muted)}.top-links .pill{color:var(--green);border:1px solid #c7e2d5;border-radius:7px;padding:7px 16px;font-weight:600}.layout{display:grid;grid-template-columns:250px minmax(0,1fr);max-width:1500px;margin:auto}.sidebar{border-right:1px solid var(--line);background:#fbfcfc;padding:34px 22px;position:sticky;top:82px;height:calc(100vh - 82px);overflow:auto}.side-label{font-size:12px;font-weight:700;letter-spacing:.12em;color:#6f8584;margin:28px 12px 14px}.side-home,.side-link{display:flex;align-items:center;gap:12px;color:var(--muted);border-radius:7px;padding:11px 12px;font-size:14px;margin:4px 0;line-height:1.6}.side-home{font-weight:650;color:var(--ink)}.side-link:hover,.side-home:hover{background:var(--soft);text-decoration:none}.sidebar [aria-current=page]{color:var(--green);background:var(--tint);font-weight:650}.side-number{font-size:12px;font-variant-numeric:tabular-nums;width:20px;flex-shrink:0;opacity:.7}.side-bottom{margin:30px 12px;border-top:1px solid var(--line);padding-top:22px;font-size:13px;color:var(--muted)}.side-bottom a{display:block;margin-top:8px;font-size:14px}.mobile-nav{display:none}.workspace{min-width:0;padding:42px clamp(25px,4vw,64px) 0}.page-meta{display:flex;align-items:center;gap:10px;margin-bottom:22px;color:var(--muted);font-size:13px}.tag{background:var(--tint);color:var(--green);border-radius:4px;font-size:12px;padding:2px 9px;font-weight:650}.lead{font-size:17px;color:var(--muted);max-width:720px}.search-box{position:relative;margin:28px 0 35px;max-width:820px}.search-form{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid #c9d9d4;border-radius:9px;box-shadow:0 3px 14px #082a5505;padding:4px 7px 4px 18px}.search-form:focus-within{border-color:var(--green);box-shadow:0 0 0 3px #087f5911}.search-form input{border:0;outline:0;background:transparent;min-width:0;width:100%;height:46px;color:var(--ink);font-size:16px}.search-form input:focus-visible{outline:0}.search-form button{border:0;background:var(--green);color:white;border-radius:6px;padding:7px 17px;white-space:nowrap;font-size:14px}.search-hint{font-size:13px;color:var(--muted);margin:9px 0 0}.search-hint a{margin-left:14px}.search-results{border:1px solid var(--line);border-radius:8px;padding:20px;margin-top:12px;background:white;box-shadow:0 8px 26px #082a5506}.search-results ul{list-style:none;padding:0;margin:0}.search-results li{padding:15px 0;border-bottom:1px solid var(--line);margin:0}.search-results li:last-child{border-bottom:0}.search-results a{font-weight:650}.search-results p{font-size:14px;color:var(--muted);margin:4px 0 0}.search-status{font-size:14px;color:var(--muted);margin:0}.section-title{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin:30px 0 16px}.section-title h2{font-size:22px;margin:0}.section-title span{font-size:13px;color:var(--muted)}.journey-list{border-top:1px solid var(--line)}.journey-item{display:grid;grid-template-columns:42px 1fr 24px;gap:18px;padding:21px 4px;border-bottom:1px solid var(--line);color:var(--ink);align-items:center}.journey-item:hover{background:#f7fbf9;text-decoration:none}.journey-num{display:flex;align-items:center;justify-content:center;width:35px;height:35px;border:1px solid #d5e6dd;border-radius:50%;color:var(--green);font-size:13px}.journey-copy strong{display:block;font-size:17px}.journey-copy p{margin:3px 0 0;color:var(--muted);font-size:14px}.arrow{font-size:20px;color:var(--green)}.question-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:35px}.question-link{display:flex;justify-content:space-between;gap:14px;padding:16px 18px;border:1px solid var(--line);border-radius:7px;color:var(--ink);font-size:14px}.question-link:hover{border-color:#9dc6b2;text-decoration:none}.start-panel{background:var(--tint);border-left:3px solid var(--green);padding:20px 24px;margin:28px 0}.start-panel p{margin:5px 0 0;font-size:14px;color:#426454}.start-panel strong{color:var(--green-deep)}.hc-footer{border-top:1px solid var(--line);padding:25px 0;margin-top:48px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:12px}.hc-footer a{color:var(--muted)}
.article-grid{display:grid;grid-template-columns:minmax(0,760px) 165px;gap:42px}.article-header{border-bottom:1px solid var(--line);padding-bottom:23px;margin-bottom:30px}.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:25px;display:flex;gap:8px;flex-wrap:wrap}.article-header h1{font-size:34px}.article-header .lead{font-size:16px;margin-bottom:14px}.article-meta{font-size:12px;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap}.article-content section{margin:36px 0}.article-content h2{font-size:23px;padding-top:4px;margin-bottom:15px}.article-content h3{margin-top:25px;margin-bottom:12px}.article-content a{text-decoration:underline;text-underline-offset:3px}.article-content p,.article-content li{font-size:16px}.callout{padding:16px 20px;background:var(--soft);border-left:3px solid #9aafa7;margin:22px 0;font-size:14px}.callout p{font-size:14px;margin:5px 0 0}.callout.success{background:var(--tint);border-color:var(--green)}.callout.note{background:#f1f5fa;border-color:#8ba5c3}.callout.preview{background:#fff9e9;border-color:#c6a757}.figure{margin:24px 0}.figure button{display:block;border:1px solid var(--line);border-radius:8px;padding:0;overflow:hidden;background:var(--soft);width:100%;cursor:zoom-in}.figure img{display:block;width:100%}.figure figcaption{font-size:12px;color:var(--muted);margin-top:10px;line-height:1.6}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:14px;margin:20px 0}th,td{border-bottom:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}th{background:var(--soft);font-weight:650}td:first-child{font-weight:550}.article-content details{border-bottom:1px solid var(--line);padding:15px 0}.article-content summary{cursor:pointer;font-weight:600}.article-content details p{font-size:15px;margin:14px 0 0}.article-content code{font-size:.9em;background:var(--soft);padding:3px 5px;border-radius:4px}.article-content .button{display:inline-block;text-decoration:none;background:var(--green);color:#fff;border-radius:7px;padding:9px 18px;font-size:14px;margin:8px 12px 8px 0}.toc{position:sticky;top:120px;align-self:start;border-left:1px solid var(--line);padding-left:18px;margin-top:8px}.toc strong{font-size:13px}.toc a{display:block;font-size:13px;color:var(--muted);margin:12px 0;line-height:1.6}.copy-link{border:1px solid var(--line);background:white;border-radius:5px;padding:6px 10px;color:var(--muted);font-size:12px;margin-top:18px}.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:42px}.article-nav a{border:1px solid var(--line);border-radius:7px;padding:16px 18px;color:var(--ink);font-size:14px}.article-nav a:hover{border-color:#9dc6b2;text-decoration:none}.article-nav small{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}.article-nav a:last-child{text-align:right}.source-links{font-size:13px;color:var(--muted);padding-top:20px;border-top:1px solid var(--line)}.source-links a{font-size:13px}.image-dialog{padding:0;border:0;border-radius:8px;width:min(96vw,1600px);max-width:96vw;max-height:95vh;background:#fff;box-shadow:0 20px 100px #0005}.image-dialog::backdrop{background:#092621bd}.dialog-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:10px 16px;background:#fff;position:sticky;top:0;z-index:2;font-size:14px}.dialog-bar button{border:1px solid var(--line);background:white;border-radius:5px;padding:5px 14px;flex-shrink:0}.dialog-body{overflow:auto;max-height:calc(95vh - 65px);text-align:center;background:var(--soft)}.dialog-body img{display:block;margin:auto;max-width:none;width:auto;min-width:0}.no-js{font-size:13px;color:var(--muted)}
@media(min-width:1500px){.hc-header{padding-left:max(40px,calc((100vw - 1420px)/2));padding-right:max(40px,calc((100vw - 1420px)/2))}}
@media(max-width:1200px){.article-grid{grid-template-columns:minmax(0,1fr)}.toc{display:none}.layout{grid-template-columns:225px minmax(0,1fr)}.workspace{padding:34px}.hc-header{padding:0 26px}.brand-label{font-size:16px}.top-links{gap:16px}}
@media(max-width:760px){.hc-header{height:68px;padding:0 18px;gap:12px}.brand{gap:12px}.brand img{width:115px;height:40px}.brand-label{padding-left:12px;font-size:14px}.top-links{gap:8px}.top-links .website-link:not(.language-link){display:none}.top-links .pill{padding:5px 10px;font-size:12px}.layout{display:block}.sidebar{display:none}.mobile-nav{display:block;border-bottom:1px solid var(--line);background:#fafcfb;padding:0 20px}.mobile-nav summary{padding:12px 0;font-size:14px;color:var(--green);cursor:pointer}.mobile-nav nav{padding:0 0 15px}.mobile-nav a{display:block;padding:8px 2px;color:var(--ink);font-size:14px}.mobile-nav [aria-current=page]{color:var(--green);font-weight:650}.workspace{padding:25px 20px 0}.page-meta{margin-bottom:15px}.lead{font-size:15px}.search-box{margin:23px 0 28px}.search-hint{font-size:12px}.search-hint a{margin-left:9px}.search-form{padding-left:12px;gap:4px}.search-form input{font-size:14px;height:45px}.search-form button{font-size:13px;padding:7px 12px}.question-grid{grid-template-columns:1fr}.section-title h2{font-size:20px}.section-title span{font-size:12px}.journey-item{grid-template-columns:34px 1fr 16px;gap:12px;padding:18px 0}.journey-copy strong{font-size:16px}.journey-copy p{font-size:13px}.journey-num{width:31px;height:31px;font-size:12px}.article-header h1{font-size:29px}.article-content h2{font-size:21px}.article-content p,.article-content li{font-size:15px}.article-content section{margin:29px 0}.article-nav{gap:10px}.article-nav a{padding:13px 12px}.hc-footer{margin-top:32px;padding:22px 0}.start-panel{padding:16px 18px}.breadcrumbs{margin-bottom:20px}.figure figcaption{font-size:12px}.dialog-body img{max-width:none}.dialog-bar{font-size:12px}.dialog-bar button{font-size:12px}section[id],h2[id],details[id]{scroll-margin-top:90px}}
@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}@media print{.hc-header,.sidebar,.mobile-nav,.toc,.search-box,.article-nav,.hc-footer,.copy-link{display:none}.layout,.article-grid{display:block}.workspace{padding:0}.figure{break-inside:avoid}a{color:#162d3c}.article-content details{display:block}.article-content details>*{display:block!important}}
/* Manual-based help expansion: grouped navigation and task directory. */
.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}.nav-group{margin:14px 0}.nav-group>summary{display:flex;align-items:center;justify-content:space-between;gap:10px;cursor:pointer;font-size:14px;font-weight:650;color:var(--ink);padding:9px 10px}.nav-group>summary::after{content:'+';font-weight:400;color:var(--muted)}.nav-group[open]>summary::after{content:'−'}.nav-group>summary span{margin-left:auto;font-size:11px;background:#eaf0ee;color:#5a7169;padding:0 6px;border-radius:4px}.nav-group .side-link{font-size:13px;padding:8px 10px;line-height:1.6}.sidebar{padding:25px 17px}.brand-label{font-size:16px}.quickstart{display:grid;grid-template-columns:1fr 1fr;gap:0 28px}.quickstart>a{display:flex;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink)}.quickstart>a span{color:var(--green);font-size:12px;font-variant-numeric:tabular-nums}.quickstart>a b{margin-left:auto;color:var(--green);font-weight:400}.start-guide{padding:0 0 22px}.start-guide .section-title{margin-top:20px}.section-title>a{font-size:13px}.category-directory{display:grid;grid-template-columns:1fr 1fr;gap:24px 28px;align-items:start}.category-block{padding:21px 22px;border:1px solid var(--line);border-radius:9px;min-width:0}.category-heading{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.category-heading h3{font-size:19px;margin:0}.category-heading>span{font-size:12px;color:var(--muted);white-space:nowrap}.category-block>p{font-size:13px;color:var(--muted);margin:7px 0 12px}.category-block ul{list-style:none;margin:0;padding:0}.category-block li{margin:0}.category-block li a{display:flex;justify-content:space-between;gap:12px;padding:9px 0;font-size:14px;color:var(--ink);line-height:1.65}.category-block li+li{border-top:1px solid #eef2f0}.category-block li a>span{color:#8fa69e;font-size:12px}.help-source-note{border-top:1px solid var(--line);margin-top:38px;padding-top:24px}.help-source-note h2{font-size:19px}.help-source-note p{font-size:13px;color:var(--muted)}.compact-search{max-width:none;margin:0 0 27px}.compact-search .search-form{max-width:680px}.compact-search input{height:39px;font-size:14px}.article-meta{align-items:center}.article-meta .copy-link{margin:0}.requirements{background:#f5f8f7;padding:18px 23px;border-radius:8px}.article-content .requirements{margin-top:0}.requirements h2{font-size:18px;padding:0}.requirements li{font-size:14px}.entry-path{border-top:1px solid var(--line);padding-top:14px;font-size:14px!important;margin-bottom:0;line-height:1.8}.entry-path strong{font-size:12px;color:var(--green)}.anchor-link{opacity:0;font-size:16px;margin-left:10px;text-decoration:none!important;font-weight:400}.article-content h2:hover .anchor-link,.anchor-link:focus{opacity:1}.success-checks{background:var(--tint);border-left:3px solid var(--green);padding:8px 18px}.success-checks li{font-size:15px}.related-articles ul{columns:2;column-gap:25px}.related-articles li{break-inside:avoid;font-size:14px}.source-links p{font-size:12px!important;margin-bottom:9px}.manual-figure{max-width:720px}.manual-figure img{max-height:640px;width:auto;max-width:100%;margin:auto;object-fit:contain}.manual-figure button{background:#f8faf9;padding:8px}.article-toc-mobile{display:none}.dialog-body img{max-width:none}.article-content table{font-size:14px}.article-content th,.article-content td{min-width:90px}.article-content ul,.article-content ol{overflow-wrap:anywhere}
@media(max-width:1200px){.article-toc-mobile{display:block;margin-top:20px;font-size:14px}.article-toc-mobile summary{cursor:pointer;color:var(--green)}.article-toc-mobile a{display:block;margin:7px 0;color:var(--muted)}}
@media(max-width:760px){.brand-label{font-size:12px;padding-left:8px}.brand{gap:8px}.brand img{width:102px}.hc-header{padding:0 12px}.top-links .pill{font-size:11px;padding:5px 7px}.category-directory{grid-template-columns:1fr;gap:15px}.category-block{padding:17px 18px}.quickstart{grid-template-columns:1fr}.quickstart>a{font-size:14px;padding:11px 0}.section-title{gap:12px;flex-wrap:wrap}.section-title h2{font-size:19px}.requirements{padding:16px 18px}.related-articles ul{columns:1}.manual-figure button{padding:4px}.mobile-nav .nav-group>summary{padding:8px 0;color:var(--ink)}.mobile-nav .nav-group .side-link{padding:7px 12px}.mobile-nav .nav-group{margin:6px 0}.mobile-nav>nav{max-height:65vh;overflow:auto}.compact-search{margin-bottom:21px}.article-header h1{font-size:28px}.anchor-link{opacity:.45}.article-meta .copy-link{font-size:11px}.manual-figure img{max-height:none}}