:root{color-scheme:light;--ink:#20272b;--muted:#68747a;--line:#dce2e2;--surface:#fff;--soft:#f5f8f7;--accent:#d55b49;--teal:#247d78}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;background:var(--surface);color:var(--ink);font:15px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;letter-spacing:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
.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:absolute;top:-60px;left:12px;z-index:80;padding:8px 12px;background:#fff;border:1px solid var(--line)}
.skip-link:focus{top:12px}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.header-inner{height:68px;max-width:1520px;margin:auto;padding:0 32px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:16px;font-weight:650}
.brand img{width:30px;height:30px;object-fit:contain}
.brand strong{color:var(--muted);font-weight:600;margin-left:4px}
.platform-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.platform-nav a{padding:6px 13px;border-radius:6px;font-size:14px;color:var(--muted)}
.platform-nav a:hover,.platform-nav a[aria-current]{background:var(--soft);color:var(--ink)}
.platform-nav a[aria-current]{font-weight:650}
.desktop-search{width:256px}
.search-box{position:relative}
.site-search{width:100%;height:36px;padding:0 12px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink);outline:none;font-size:13px}
.site-search:focus{border-color:var(--teal);box-shadow:0 0 0 2px #247d7820}
.search-results{position:absolute;top:calc(100% + 8px);right:0;width:min(390px,90vw);max-height:min(540px,70vh);overflow:auto;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:0 14px 36px #1c2d3120;z-index:40;padding:6px}
.search-results[hidden]{display:none}
.search-results a{display:flex;flex-direction:column;padding:9px 11px;border-radius:4px;line-height:1.45}
.search-results a:hover,.search-results a:focus-visible{background:var(--soft)}
.search-results small{font-size:11px;color:var(--teal)}
.search-results strong{font-size:13px;font-weight:600}
.search-results span{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.search-empty{margin:10px;font-size:13px;color:var(--muted)}
.mobile-search,.mobile-menu{display:none}
.page-layout{max-width:1520px;min-height:calc(100vh - 121px);margin:auto;padding:0 32px;display:grid;grid-template-columns:230px minmax(0,800px) minmax(150px,210px);gap:clamp(28px,3vw,56px)}
.sidebar{border-right:1px solid var(--line);min-width:0}
.sidebar-inner{position:sticky;top:68px;max-height:calc(100vh - 68px);overflow:auto;padding:30px 17px 48px 0;scrollbar-width:thin}
.nav-caption{font-size:12px;font-weight:700;color:var(--muted);padding:0 10px 12px}
.sidebar nav{display:flex;flex-direction:column;gap:2px}
.sidebar nav a{display:block;padding:7px 10px;border-radius:5px;font-size:13px;line-height:1.45;color:#4c575c}
.sidebar nav a:hover,.sidebar nav a[aria-current]{background:var(--soft);color:var(--ink)}
.sidebar nav a[aria-current]{font-weight:650;border-left:2px solid var(--accent)}
.doc-main{min-width:0;padding:40px 0 90px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--muted);margin-bottom:16px}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb span{color:#a8b0b2}
.manual-body{overflow-wrap:anywhere}
.manual-body h2{font-size:30px;line-height:1.3;font-weight:700;margin:0 0 22px}
.manual-body h3{font-size:20px;line-height:1.4;font-weight:650;margin:42px 0 14px;padding-top:4px}
.manual-body p,.manual-body ol,.manual-body ul{margin:12px 0}
.manual-body ol,.manual-body ul{padding-left:25px}
.manual-body li{padding-left:3px;margin:6px 0}
.manual-body strong{font-weight:650}
.manual-body code{background:#f0f3f2;border-radius:4px;padding:2px 5px;font-size:.88em}
.manual-body table{border-collapse:collapse;width:100%;font-size:13px;line-height:1.55;margin:14px 0 22px}
.manual-body th,.manual-body td{border-bottom:1px solid var(--line);padding:8px 12px;text-align:left;vertical-align:top}
.manual-body th{background:var(--soft);font-weight:600}
.manual-body a{color:var(--teal);text-decoration:underline;text-underline-offset:3px}
.manual-preface{border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:27px;color:#455156}
.manual-preface table{margin-top:0}
.page-toc{min-width:0;padding-top:43px}
.page-toc strong{display:block;font-size:12px;font-weight:700;color:var(--muted);margin-bottom:10px}
.page-toc nav{position:sticky;top:105px;display:flex;flex-direction:column;gap:3px;max-height:calc(100vh - 130px);overflow:auto}
.page-toc a{display:block;padding:5px 0 5px 10px;border-left:1px solid var(--line);font-size:12px;line-height:1.45;color:var(--muted)}
.page-toc a:hover,.page-toc a[aria-current]{border-color:var(--accent);color:var(--ink)}
.mobile-toc{display:none}
.page-pager{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:60px;padding-top:20px;border-top:1px solid var(--line)}
.page-pager a{display:flex;flex-direction:column;gap:3px;min-width:0}
.page-pager a:last-child{text-align:right}
.page-pager a:hover span{color:var(--teal)}
.page-pager small{font-size:12px;color:var(--muted)}
.page-pager span{font-size:14px;font-weight:600}
.site-footer{display:flex;justify-content:space-between;max-width:1520px;margin:auto;padding:17px 32px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.home-layout{display:block;max-width:1080px}
.home-layout .doc-main{padding:80px 0 100px}
.doc-kicker{color:var(--teal);font-size:12px;font-weight:700}
.home-intro h1{font-size:38px;line-height:1.2;margin:11px 0 16px}
.home-intro p{font-size:16px;color:var(--muted);margin:0}
.platform-section{margin-top:70px}
.section-topline{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid var(--line);padding-bottom:12px}
.section-topline h2{font-size:19px;line-height:1.4;margin:0}
.section-topline span{font-size:13px;color:var(--muted)}
.platform-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}
.platform-card{display:flex;flex-direction:column;min-height:202px;border:1px solid var(--line);border-radius:6px;padding:21px;background:#fff;transition:border-color .2s,transform .2s}
.platform-card:hover{border-color:var(--teal);transform:translateY(-2px)}
.card-index{color:var(--accent);font-size:12px;font-weight:700}
.card-title{display:flex;justify-content:space-between;gap:12px;margin-top:15px;font-size:24px;font-weight:650;line-height:1.3}
.card-title span{color:var(--teal);font-size:18px}
.card-desc{font-size:13px;color:var(--muted);margin-top:10px;line-height:1.6}
.card-action{margin-top:auto;padding-top:19px;font-size:13px;font-weight:650;color:var(--teal)}
@media(max-width:1100px){.page-layout{grid-template-columns:210px minmax(0,1fr);gap:32px}.page-toc{display:none}.mobile-toc{display:block;margin:0 0 26px;border:1px solid var(--line);border-radius:6px}.mobile-toc summary{cursor:pointer;padding:9px 13px;font-size:13px;font-weight:600}.mobile-toc nav{display:flex;flex-direction:column;padding:0 13px 10px}.mobile-toc a{padding:5px 0;font-size:13px;color:var(--teal)}}
@media(max-width:760px){html{scroll-padding-top:125px}.header-inner{height:auto;min-height:60px;padding:10px 18px;gap:7px;flex-wrap:wrap}.brand{font-size:14px;margin-right:auto}.brand img{width:26px;height:26px}.brand strong{display:none}.platform-nav{order:4;width:100%;justify-content:space-between;margin:1px 0 0;border-top:1px solid var(--line);padding-top:7px}.platform-nav a{flex:1;text-align:center;font-size:13px}.desktop-search{display:none}.mobile-search,.mobile-menu{display:block}.mobile-search summary,.mobile-menu summary{list-style:none;cursor:pointer;width:35px;height:35px;text-align:center;line-height:35px;font-size:23px;border-radius:5px}.mobile-search summary::-webkit-details-marker,.mobile-menu summary::-webkit-details-marker{display:none}.mobile-search[open] summary,.mobile-menu[open] summary{background:var(--soft)}.mobile-search .search-box{position:absolute;top:100%;left:0;right:0;padding:12px 18px;background:#fff;border-bottom:1px solid var(--line)}.mobile-search .search-results{position:static;width:100%;margin-top:7px;max-height:55vh}.mobile-menu nav{position:absolute;top:100%;left:0;right:0;max-height:65vh;overflow:auto;display:flex;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 22px #1c2d311a;padding:10px 18px}.mobile-menu nav a{padding:8px 10px;border-radius:4px;font-size:14px}.mobile-menu nav a[aria-current]{background:var(--soft);font-weight:650}.page-layout{display:block;padding:0 19px}.sidebar{display:none}.doc-main{padding:28px 0 68px}.manual-body h2{font-size:26px}.manual-body h3{font-size:18px;margin-top:34px}.home-layout .doc-main{padding:54px 0 75px}.platform-grid{grid-template-columns:1fr}.platform-card{min-height:160px}.site-footer{padding:17px 19px}}
@media(max-width:390px){.header-inner{padding-left:12px;padding-right:12px}.page-layout{padding:0 15px}.manual-body h2{font-size:24px}.site-footer{padding:17px 15px}}
@media print{.site-header,.sidebar,.page-toc,.mobile-toc,.site-footer,.page-pager{display:none!important}.page-layout{display:block;padding:0;max-width:none}.doc-main{padding:0}.manual-body h2,.manual-body h3{break-after:avoid}.manual-body table,.manual-body ol{break-inside:avoid}.manual-body{font-size:11pt}}