:root{color-scheme:light;--ink:#202522;--muted:#69736c;--line:#e5e9e6;--green:#146447;--soft:#f5f8f6;--accent:#b24d3d;--header-height:80px}
*{box-sizing:border-box;letter-spacing:0}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:#fff;color:var(--ink);font:15px/1.85 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--green);text-decoration:none;text-underline-offset:4px}
a:hover{text-decoration:underline}
a:focus-visible,summary:focus-visible{outline:2px solid var(--green);outline-offset:5px}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,p,figure{margin:0}
h1,h2,h3{line-height:1.4;font-weight:650}
p+p{margin-top:12px}
.skip-link{position:fixed;top:-100px;left:20px;padding:8px 16px;background:#fff;border:1px solid var(--green);z-index:10}
.skip-link:focus{top:12px}
.site-header{height:var(--header-height);border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:5}
.header-inner{max-width:1240px;height:100%;margin:auto;padding:0 40px;display:flex;align-items:center;gap:24px}
.brand{width:132px;flex:0 0 132px}
.brand img{width:132px;height:auto}
.header-label{padding-left:24px;border-left:1px solid var(--line);font-size:14px;color:var(--muted)}
.header-nav{margin-left:auto;display:flex;align-items:center;gap:26px;font-size:14px}
.home-link{color:#4e5951}
.action-link{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:9px 20px;background:var(--green);border:1px solid var(--green);border-radius:4px;color:#fff;font-size:14px;font-weight:550;line-height:1.5;text-align:center;white-space:nowrap}
.action-link:hover{background:#104e38;text-decoration:none}
.page-layout{max-width:1240px;margin:auto;padding:0 40px;display:grid;grid-template-columns:200px minmax(0,1fr);gap:64px;align-items:start}
.contents{position:sticky;top:calc(var(--header-height) + 40px);padding-top:4px;margin-top:44px}
.contents-label{font-size:12px;color:var(--muted);margin:0 0 15px 0}
.contents nav>a{display:flex;align-items:baseline;gap:14px;color:#48544b;font-size:14px;padding:9px 0}
.contents nav>a span{font-size:11px;color:#9aa29c;font-variant-numeric:tabular-nums}
.contents nav>a:hover{color:var(--green)}
.contents-footer{display:flex;gap:7px;align-items:center;border-top:1px solid var(--line);margin-top:26px;padding-top:18px;color:#7b857e;font-size:11px;white-space:nowrap}
.status-dot{width:5px;height:5px;border-radius:50%;background:var(--green);flex:0 0 5px}
main{min-width:0;padding-top:44px}
.intro{padding-bottom:42px}
.eyebrow{color:var(--green);font-size:12px;font-weight:600;margin-bottom:14px}
h1{font-size:34px;margin-bottom:18px}
.lead{font-size:19px;line-height:1.65;margin-bottom:19px;color:#39483e}
.intro>p:not(.eyebrow):not(.lead){max-width:780px;color:#5b665e}
.intro-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:23px;font-size:12px;color:#657168}
.intro-meta i{width:3px;height:3px;background:#a1aba4;border-radius:50%}
.doc-section{padding:34px 0 38px;border-top:1px solid var(--line);scroll-margin-top:0}
.section-heading{display:flex;align-items:baseline;gap:13px;margin-bottom:17px}
.section-number{font-size:11px;color:var(--accent);font-variant-numeric:tabular-nums}
h2{font-size:23px}
.doc-section>p{color:#5e6961}
.feature-list{margin-top:22px}
.feature-row{display:grid;grid-template-columns:155px minmax(0,1fr);gap:20px;padding:20px 0;border-top:1px solid #edf0ee}
.feature-row h3{font-size:15px;padding-top:1px}
.feature-row p{font-size:14px;color:#5d695f}
.feature-row a{display:inline-block;font-size:13px;margin-top:9px}
.steps{list-style:none;counter-reset:step;padding:0;margin:25px 0 28px}
.steps li{counter-increment:step;display:grid;grid-template-columns:30px minmax(0,1fr);gap:15px;position:relative;padding-bottom:25px}
.steps li:before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:1px solid #cbd9cf;border-radius:50%;font-size:12px;font-weight:600;color:var(--green);background:#fff;z-index:1}
.steps li:not(:last-child):after{content:"";position:absolute;left:14px;top:28px;bottom:0;width:1px;background:#e3ebe5}
.steps li:last-child{padding-bottom:0}
.steps h3{font-size:15px;margin:1px 0 6px}
.steps p{font-size:14px;color:#626d65}
.note{border-left:3px solid #acc7b6;background:var(--soft);padding:16px 20px;font-size:13px}
.note strong{font-size:13px}
.note p{margin-top:5px;color:#637067}
.example-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:25px 0 15px}
.example-grid img{width:100%;aspect-ratio:2/3;object-fit:contain;background:#f3f4f3}
.example-grid figcaption{margin-top:12px;font-size:12px;line-height:1.7}
.example-grid figcaption>span{color:var(--accent);font-size:10px;margin-right:7px}
.example-grid figcaption strong{font-weight:600}
.example-grid figcaption p{margin-top:5px;color:#748078;font-size:11px}
.caption-note{font-size:12px!important;color:#7c857f!important}
.detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:34px}
.detail-grid h3{font-size:15px;margin-bottom:12px}
.detail-grid p{font-size:14px;color:#626d65}
.account-list{margin:0}
.account-list>div{display:grid;grid-template-columns:130px minmax(0,1fr);gap:22px;padding:18px 0;border-top:1px solid #edf0ee}
.account-list>div:first-child{border-top:0;padding-top:4px}
.account-list dt{font-size:14px;font-weight:600}
.account-list dd{margin:0;font-size:14px;color:#626d65}
.faq-list details{border-top:1px solid var(--line);padding:17px 0}
.faq-list details:last-child{border-bottom:1px solid var(--line)}
.faq-list summary{font-size:14px;font-weight:550;cursor:pointer;list-style:none;position:relative;padding-right:30px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";position:absolute;right:4px;top:0;font-size:18px;line-height:1.5;font-weight:400;color:#6e7c72}
.faq-list details[open]>summary:after{content:"−"}
.faq-list details p{font-size:14px;color:#626d65;padding:13px 28px 2px 0}
.closing{border-top:1px solid var(--line);padding:30px 0;display:flex;align-items:center;justify-content:space-between;gap:24px}
.closing h2{font-size:19px;margin-bottom:7px}
.closing p{font-size:13px;color:#738077}
.page-footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:22px 0 34px;color:#869087;font-size:11px}
.page-footer a{color:inherit}
@media(min-width:1500px){.page-layout,.header-inner{max-width:1300px}.page-layout{gap:80px;grid-template-columns:210px minmax(0,1fr)}}
@media(max-width:1000px){.page-layout{grid-template-columns:160px minmax(0,1fr);gap:32px;padding:0 28px}.header-inner{padding:0 28px}.header-label{display:none}h1{font-size:30px}.feature-row{grid-template-columns:120px minmax(0,1fr);gap:15px}.example-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 16px}.detail-grid{gap:24px}}
@media(max-width:720px){:root{--header-height:68px}html{scroll-padding-top:90px}.header-inner{padding:0 20px;gap:12px}.brand,.brand img{width:112px}.brand{flex-basis:112px}.header-nav{gap:16px;font-size:12px}.home-link{display:none}.action-link{min-height:38px;padding:8px 13px;font-size:12px}.page-layout{display:block;padding:0 22px}.contents{position:static;margin:0;padding:19px 0;border-bottom:1px solid var(--line)}.contents-label{font-size:11px;margin-bottom:9px}.contents nav{display:flex;flex-wrap:wrap;gap:4px 20px}.contents nav>.contents-label{flex-basis:100%;margin-bottom:2px}.contents nav>a{font-size:12px;padding:2px 0;gap:5px}.contents nav>a span{display:none}.contents-footer{display:none}main{padding-top:30px}.intro{padding-bottom:30px}.eyebrow{margin-bottom:12px;font-size:11px}h1{font-size:27px;line-height:1.5;margin-bottom:15px;max-width:340px}.lead{font-size:17px;line-height:1.65;margin-bottom:15px}body{font-size:14px}.intro-meta{font-size:11px;gap:8px;margin-top:19px}.doc-section{padding:27px 0 30px}.section-heading{gap:10px;margin-bottom:15px}h2{font-size:20px}.feature-list{margin-top:18px}.feature-row{display:block;padding:17px 0}.feature-row h3{font-size:15px;margin-bottom:8px}.feature-row p{font-size:13px}.feature-row a{font-size:12px}.steps{margin:23px 0}.steps li{gap:11px;padding-bottom:22px}.steps h3{font-size:14px}.steps p{font-size:13px}.note{padding:13px 15px;font-size:12px}.example-grid{gap:21px 13px;margin-top:22px}.example-grid figcaption{margin-top:9px}.example-grid figcaption p{font-size:11px}.detail-grid{grid-template-columns:1fr;gap:23px}.detail-grid p{font-size:13px}.account-list>div{grid-template-columns:1fr;gap:7px;padding:17px 0}.account-list dd{font-size:13px}.faq-list summary,.faq-list details p{font-size:13px}.closing{display:block;padding:26px 0}.closing h2{font-size:18px}.closing .action-link{margin-top:17px;min-height:40px;padding:9px 18px}.page-footer{flex-wrap:wrap;gap:5px;padding:19px 0 26px;font-size:10px}.page-footer>span{flex-basis:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}