:root{--ink:#233849;--muted:#657886;--blue:#315b80;--blue-light:#e9f0f5;--canvas:#f3f6f9;--paper:#fff;--line:#dce5ec;--body:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic","PingFang SC","Microsoft YaHei",sans-serif;--display:"Iowan Old Style","Palatino Linotype","Songti SC","Hiragino Mincho ProN",serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.8 var(--body)}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button,input,select{font:inherit;color:inherit}button{cursor:pointer}button,a,input,select{touch-action:manipulation}img{display:block;max-width:100%}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #80afd2;outline-offset:4px}h1,h2,h3,p,figure{margin:0}h1{font-size:clamp(30px,3vw,42px);letter-spacing:-.025em;line-height:1.35;font-weight:650}h2{font-size:23px;line-height:1.5;font-weight:620;margin-bottom:18px}h3{font-size:17px;line-height:1.5;margin-bottom:6px}p+p{margin-top:12px}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;clip-path:inset(50%);overflow:hidden;white-space:nowrap}.skip-link{position:fixed;left:20px;top:-100px;z-index:100;background:white;padding:12px}.skip-link:focus{top:10px}
.topbar{height:80px;position:sticky;top:0;z-index:30;border-bottom:1px solid var(--line);background:rgba(255,255,255,.97);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 32px;backdrop-filter:blur(14px)}.brand{display:flex;gap:12px;align-items:center;color:var(--ink);line-height:1.35}.brand:hover{text-decoration:none}.brand img{width:43px;height:43px;border-radius:10px}.brand strong{font-size:19px;font-weight:600}.brand small{display:block;font-size:11px;color:var(--muted);letter-spacing:.04em;margin-top:3px}.top-tools{display:flex;gap:20px;align-items:center}.version-badge{font-size:12px;color:var(--muted)}.language-control{display:flex;gap:6px;align-items:center;color:var(--blue);font-size:14px}.language-control select{border:0;background:transparent;max-width:185px;padding:6px 2px;cursor:pointer;font-size:13px}.search-trigger{border:1px solid var(--line);background:var(--canvas);border-radius:8px;display:flex;gap:10px;align-items:center;font-size:13px;padding:7px 12px}.search-trigger>span:first-child{font-size:22px;line-height:1}.search-trigger kbd{font:11px var(--body);color:var(--muted);margin-left:10px}.menu-button{display:none;background:none;border:0;font-size:22px;padding:5px}.shell{max-width:1640px;margin:auto;display:grid;grid-template-columns:240px minmax(0,1fr) 190px}.sidebar{position:sticky;top:80px;height:calc(100dvh - 80px);overflow:auto;padding:28px 18px 28px 24px;border-right:1px solid var(--line);scrollbar-width:thin}.nav-group{font-size:11px;letter-spacing:.08em;color:var(--muted);margin:24px 10px 8px}.nav-group:first-child{margin-top:0}.sidebar nav a{display:block;font-size:13px;line-height:1.6;padding:8px 12px;margin:2px 0;border-radius:6px;color:var(--ink);border-left:2px solid transparent}.sidebar nav a.active{background:var(--blue-light);color:var(--blue);border-left-color:var(--blue);font-weight:600}.sidebar nav a:hover{text-decoration:none;background:var(--canvas)}.sidebar-foot{font-size:10px;color:var(--muted);padding:20px 12px 0;margin-top:25px;border-top:1px solid var(--line)}.sidebar-foot p+p{margin-top:2px}main{padding:34px 44px 28px;min-width:0;max-width:1000px}.breadcrumb{font-size:12px;color:var(--muted);display:flex;gap:10px;align-items:center;margin-bottom:25px}.breadcrumb span{overflow-wrap:anywhere}.page-intro{margin-bottom:34px}.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--blue);margin-bottom:12px}.lead{color:var(--muted);font-size:17px;line-height:1.85;margin-top:16px;max-width:710px}.page-outline{position:sticky;top:80px;height:fit-content;padding:42px 18px 20px 5px;font-size:12px}.page-outline strong{font-size:11px;color:var(--muted);font-weight:500;display:block;margin-bottom:12px}.page-outline a{display:block;color:var(--muted);margin:12px 0;line-height:1.6;border-left:1px solid var(--line);padding-left:12px}.page-outline a:hover{color:var(--blue)}
.hero{display:grid;grid-template-columns:1fr 1.1fr;gap:30px;align-items:center;margin-bottom:38px}.hero h1{font:clamp(30px,3vw,43px)/1.4 var(--display);font-weight:500}.hero h1 em{font-style:normal;color:var(--blue)}.hero .lead{font-size:15px;margin:18px 0 22px}.button{display:inline-flex;justify-content:center;align-items:center;gap:12px;border:1px solid var(--blue);border-radius:8px;padding:10px 18px;background:var(--blue);color:white;font-size:13px;font-weight:500}.button:hover{background:#274c6c;text-decoration:none}.button.quiet{background:white;color:var(--blue);border-color:var(--line)}.button.quiet:hover{background:var(--canvas)}.hero-map{position:relative;border-radius:12px;overflow:hidden;background:var(--canvas)}.hero-map img{width:100%;aspect-ratio:1;object-fit:cover}.pin{position:absolute;transform:translate(-50%,-50%);width:31px;height:31px;border-radius:50%;border:2px solid white;background:var(--blue);color:white;font-size:12px;box-shadow:0 2px 10px #0004}.pin.active{background:white;color:var(--blue);border:2px solid var(--blue);box-shadow:0 0 0 5px #fff7}.map-hint{position:absolute;bottom:12px;left:12px;right:12px;color:white;background:#182b3bd9;border-radius:6px;padding:6px 9px;font-size:11px;line-height:1.6}.pin-detail{display:flex;justify-content:space-between;align-items:center;gap:14px;border-bottom:1px solid var(--line);padding:16px 0;margin-top:-22px;margin-bottom:30px;font-size:13px}.pin-detail small{display:block;color:var(--muted);font-size:11px}.path{font-size:11px;color:var(--muted)}.quick-links{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:10px;overflow:hidden;margin:28px 0}.quick-links a{padding:18px;color:var(--ink);line-height:1.6}.quick-links a+a{border-left:1px solid var(--line)}.quick-links strong{font-size:14px;display:block}.quick-links small{font-size:11px;color:var(--muted);display:block;margin-top:6px}
.manual-section{margin:35px 0;scroll-margin-top:100px}.steps{list-style:none;counter-reset:step;padding:0;margin:0}.steps li{counter-increment:step;position:relative;padding:0 0 23px 47px}.steps li:before{content:counter(step);position:absolute;left:0;top:0;width:30px;height:30px;display:grid;place-items:center;background:var(--blue-light);color:var(--blue);font-size:13px;border-radius:50%}.steps li:not(:last-child):after{content:"";position:absolute;left:15px;top:38px;bottom:8px;width:1px;background:var(--line)}.steps p{color:var(--muted);font-size:14px}.app-label{font-weight:550;color:var(--ink)}.bullet-list{padding-left:21px;margin:0;font-size:15px}.bullet-list li{padding:4px 0 8px}.callout{background:var(--blue-light);padding:22px 25px;border-left:3px solid var(--blue);border-radius:0 9px 9px 0;font-size:14px}.callout h2{font-size:17px;margin-bottom:10px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:9px}table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.75}th,td{padding:15px 18px;text-align:left;vertical-align:top}tbody tr+tr{border-top:1px solid var(--line)}th{background:var(--canvas);font-weight:550;font-size:12px}td:first-child{font-weight:550;width:28%;min-width:120px}td:not(:first-child){color:var(--muted)}details{padding:17px 0;border-bottom:1px solid var(--line)}summary{cursor:pointer;list-style:none;font-weight:550;padding-right:30px;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:5px;top:-2px;font-size:20px;color:var(--blue)}details[open] summary:after{content:"−"}details p{font-size:14px;color:var(--muted);margin-top:14px;max-width:720px}
.screen-gallery{display:flex;gap:20px;overflow-x:auto;padding:5px 3px 15px;scroll-snap-type:x proximity}.screen-figure{flex:0 0 220px;max-width:240px;scroll-snap-align:start}.screenshot-link{border:1px solid var(--line);padding:7px;border-radius:22px;background:var(--canvas);width:100%;cursor:zoom-in}.screenshot-link img{width:100%;height:auto;border-radius:16px}.screen-figure figcaption{font-size:11px;line-height:1.7;color:var(--muted);margin-top:12px;padding:0 5px}.screen-figure figcaption strong{color:var(--ink);font-size:12px;display:block}.screen-note{font-size:11px;color:var(--muted);margin:6px 0 18px}.demo-panel{padding:24px;border:1px solid var(--line);border-radius:10px;background:var(--canvas);margin:30px 0}.demo-panel h2{font-size:19px}.demo-panel p{font-size:12px;color:var(--muted)}.counters{display:flex;gap:40px;margin:22px 0}.counters strong{display:block;font-size:32px;font-weight:500;font-variant-numeric:tabular-nums;line-height:1.4}.counters small{font-size:12px;color:var(--muted)}.button-row{display:flex;gap:10px;flex-wrap:wrap}.button:disabled{opacity:.4;cursor:default}.demo-tools{display:flex;gap:15px;flex-wrap:wrap;margin:15px 0}.demo-tools input,.demo-tools select{padding:9px 11px;border:1px solid var(--line);border-radius:7px;background:white;max-width:100%;min-width:0;font-size:13px}.demo-tools input{flex:1;min-width:160px}.example-table td:first-child{width:auto;min-width:150px}.example-table td:last-child,.example-table th:last-child{text-align:right}.example-table td{font-size:12px;padding:11px 13px}.stats-line{font-size:12px;color:var(--muted);margin-bottom:12px}.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}.download{display:flex;gap:14px;align-items:center;justify-content:space-between;padding:16px 18px;background:white;border:1px solid var(--line);border-radius:8px;font-size:13px}.download span{font-weight:650;min-width:45px}.download small{font-size:12px;color:var(--muted);text-align:right}
.page-bottom{display:flex;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding-top:25px;margin-top:48px;font-size:13px}.page-bottom small{display:block;font-size:10px;color:var(--muted);margin-bottom:5px}.page-bottom a:last-child{text-align:right}.footer{font-size:10px;display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);margin-top:35px}.footer span+span:before{content:"·";margin-right:12px}.nav-backdrop{display:none}.icon-button{background:none;border:0;font-size:27px;line-height:1;padding:5px;color:var(--muted)}dialog{border:1px solid var(--line);border-radius:12px;padding:26px;max-width:640px;width:calc(100% - 32px);color:var(--ink);box-shadow:0 25px 90px #13273830}dialog::backdrop{background:#1c32446b;backdrop-filter:blur(4px)}.dialog-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:20px}.dialog-head h2{font-size:21px;margin:0}dialog input[type=search]{width:100%;padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--canvas);font-size:15px}.search-results{max-height:55dvh;overflow:auto;padding-top:10px}.search-result{display:block;padding:14px 5px;border-bottom:1px solid var(--line);font-size:14px}.search-result small{display:block;color:var(--muted);font-size:12px;margin-top:4px}.empty-results{padding:20px 5px;color:var(--muted);font-size:14px}.image-dialog{width:auto;max-width:90vw;max-height:94dvh;padding:30px}.image-dialog .icon-button{position:absolute;right:6px;top:5px}.image-dialog img{max-height:78dvh;width:auto;object-fit:contain;margin:auto}.image-dialog p{font-size:11px;color:var(--muted);max-width:440px;margin-top:15px}.noscript{padding:40px}
.print-page{max-width:1100px;margin:auto;padding:30px}.print-toolbar{display:flex;gap:20px;justify-content:space-between;align-items:center;margin-bottom:25px}.print-toolbar a{font-size:13px}.print-section{border:1px solid var(--line);padding:30px;margin-bottom:30px;background:white}.print-section h1{font-size:22px;margin-bottom:12px}.print-section h2{font-size:15px;margin-bottom:20px}.print-section .table-wrap{border:0;border-radius:0}.print-section td,.print-section th{border:1px solid #b9c5cf;padding:8px;font-size:11px}.print-section td:first-child{width:auto;min-width:0}.print-section td{color:var(--ink);font-weight:400}.print-section small{display:block;font-size:10px;color:var(--muted);margin-top:15px}.check{display:block;width:12px;height:12px;border:1px solid #657886;margin:auto}
main:focus{outline:none}
@media(min-width:1500px){main{padding:40px 56px}.hero h1{font-size:45px}.screen-figure{flex-basis:235px}}
@media(max-width:1250px){.shell{grid-template-columns:220px minmax(0,1fr)}.page-outline{display:none}main{padding:32px}.hero{gap:25px}}
@media(max-width:850px){.topbar{height:68px;padding:0 20px}.top-tools{gap:14px}.shell{display:block}.sidebar{position:fixed;top:68px;bottom:0;height:auto;left:0;width:280px;z-index:28;background:white;visibility:hidden;transform:translateX(-101%);transition:transform .2s;box-shadow:10px 0 40px #24354715}.sidebar.open{visibility:visible;transform:translateX(0)}.nav-backdrop:not([hidden]){display:block;position:fixed;inset:68px 0 0;z-index:27;border:0;background:#1d344955}.menu-button{display:block}main{max-width:850px;margin:auto;padding:28px}.version-badge,.search-trigger kbd{display:none}.hero h1{font-size:37px}.screen-figure{flex-basis:210px}}
@media(max-width:560px){body{font-size:15px}.topbar{padding:0 14px;gap:8px}.brand{gap:8px}.brand img{width:34px;height:34px}.brand strong{font-size:16px}.brand small{font-size:9px}.top-tools{gap:7px}.language-control select{max-width:136px;font-size:12px}.language-control>span[aria-hidden]{display:none}.search-trigger{padding:7px;border:0;background:transparent}.search-trigger #search-label{display:none}.menu-button{font-size:20px}main{padding:25px 21px}.breadcrumb{font-size:10px;gap:8px}.hero{grid-template-columns:1fr;gap:24px}.hero h1{font-size:35px;line-height:1.5}.hero .lead{font-size:14px}.hero-map img{aspect-ratio:1.45}.map-hint{font-size:10px}.quick-links{grid-template-columns:1fr}.quick-links a+a{border-left:0;border-top:1px solid var(--line)}.quick-links a{padding:15px 18px}.page-intro{margin-bottom:24px}.lead{font-size:15px}h1{font-size:29px}h2{font-size:20px}.manual-section{margin:30px 0}.steps li{padding-left:40px}.steps h3{font-size:15px}.steps p{font-size:13px}.callout{padding:20px}.bullet-list{font-size:14px}td,th{padding:12px;font-size:12px}td:first-child{min-width:95px}.screen-gallery{gap:15px}.screen-figure{flex-basis:195px}.screen-note{line-height:1.7}.counters{gap:30px}.counters strong{font-size:28px}.demo-panel{padding:20px}.download-grid{grid-template-columns:1fr}.page-bottom{font-size:12px}.footer{display:block}.footer span{display:block}.footer span+span:before{content:none}.print-page{padding:15px}.print-toolbar{flex-wrap:wrap}.print-section{padding:18px}.print-section table{min-width:560px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
@media(max-width:360px){.hero h1{font-size:29px}}
@media print{body{background:white;font-size:11px}.topbar,.sidebar,.page-outline,.page-bottom,.footer,.print-toolbar,.demo-tools,.button-row,.nav-backdrop{display:none!important}.shell{display:block}main{max-width:none;padding:0}.print-page{padding:0;max-width:none}.print-section{padding:0;border:0;margin:0 0 20px}.print-section.per-box{break-before:page}.print-section.per-box:first-child{break-before:auto}.print-section table{min-width:0}.print-section th,.print-section td{font-size:10px;padding:7px}tr{break-inside:avoid}thead{display:table-header-group}.manual-section{break-inside:avoid}.screen-gallery{overflow:visible}.screen-figure{max-width:180px}.print-section small{margin-top:10px}@page{size:A4 portrait;margin:15mm}}