:root{--bg:#f8f7f2;--paper:#fffefb;--ink:#243a35;--muted:#72807a;--line:#e1e5dc;--teal:#1a514b;--teal-hover:#123e39;--teal-soft:#e9efdf;--orange:#c66b43;--orange-soft:#f7e9df;--code:#22272e;--header:rgba(248,247,242,.94);--shadow:0 24px 80px #263a3520;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;color-scheme:light;--header-height:80px}
:root[data-theme=dark]{--bg:#17231f;--paper:#1c2a25;--ink:#e1e8de;--muted:#a1b0a5;--line:#35453b;--teal:#a1c8a7;--teal-hover:#c2dfc6;--teal-soft:#283f31;--orange:#e5a17c;--orange-soft:#3d3026;--header:rgba(23,35,31,.94);--shadow:0 24px 80px #0004;color-scheme:dark}
*{box-sizing:border-box}html{scroll-padding-top:110px;scroll-behavior:smooth}body{margin:0}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}button:disabled{cursor:default}::selection{background:#d7e7ce;color:#163c33}:focus-visible{outline:3px solid var(--orange);outline-offset:4px}svg{display:block;width:24px;height:24px}img{max-width:100%}p,h1,h2,h3,h4{margin-top:0}.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;top:-60px;left:20px;background:var(--teal);color:var(--bg);padding:12px 20px;border-radius:6px;z-index:100}.skip-link:focus{top:12px}
.site-header{height:var(--header-height);background:var(--header);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;backdrop-filter:blur(18px)}.header-inner{height:100%;max-width:1600px;margin:auto;padding:0 56px;display:flex;align-items:center;gap:44px}.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;font-size:21px;font-weight:750;letter-spacing:-.7px;line-height:1.1}.brand-symbol{background:var(--teal);color:var(--bg);width:36px;height:36px;border-radius:11px;display:grid;place-items:center;transform:rotate(-4deg)}.brand-symbol svg{width:28px;height:28px;transform:rotate(4deg)}.brand-cn{font-size:11px;display:block;font-weight:500;letter-spacing:1.5px;margin-top:5px;color:var(--muted)}.top-links{display:flex;align-items:center;gap:28px;margin-left:auto;font-size:13px;font-weight:550}.top-links a{transition:color .18s}.top-links a:hover{color:var(--orange)}.top-links a:last-child{color:var(--muted)}.header-actions{display:flex;align-items:center;gap:17px}.search-trigger{display:flex;align-items:center;gap:9px;border:1px solid var(--line);border-radius:7px;background:var(--paper);padding:9px 11px;color:var(--muted);font-size:12px;width:172px;transition:border-color .2s}.search-trigger:hover{border-color:var(--muted)}.search-trigger svg{width:16px;height:16px}.search-trigger kbd{margin-left:auto;border:1px solid var(--line);border-radius:3px;width:19px;height:19px;font:11px/17px ui-monospace,monospace;background:var(--bg)}.icon-button{width:30px;height:32px;display:grid;place-items:center;border:0;background:none;padding:3px;color:var(--muted);border-radius:5px}.icon-button:hover{color:var(--ink);background:var(--teal-soft)}.icon-button svg{width:20px;height:20px}.sun-icon{display:none}:root[data-theme=dark] .moon-icon{display:none}:root[data-theme=dark] .sun-icon{display:block}.mobile-menu{display:none}
.eyebrow{font-size:10px;line-height:1.6;font-weight:650;letter-spacing:1.8px;color:var(--teal);text-transform:uppercase;display:flex;align-items:center;gap:9px;margin:0 0 18px}.status-dot,.live-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--teal);flex-shrink:0}.button{display:inline-flex;justify-content:center;align-items:center;gap:28px;min-height:46px;border-radius:6px;font-size:13px;font-weight:600;padding:13px 21px;border:1px solid transparent;transition:background .2s,border-color .2s,transform .2s}.button:hover{transform:translateY(-2px)}.button-primary{color:var(--bg);background:var(--teal);border-color:var(--teal)}.button-primary:hover{background:var(--teal-hover);border-color:var(--teal-hover)}.button-outline{background:transparent;border-color:var(--line)}.button-outline:hover{border-color:var(--teal)}.button-text{padding-left:8px;padding-right:8px;gap:15px}.button-text:hover{color:var(--orange)}.quiet-link{font-size:12px;color:var(--teal);display:inline-flex;gap:24px;border-bottom:1px solid var(--line);padding:8px 0}.quiet-link:hover{color:var(--orange);border-color:var(--orange)}
.home-main{max-width:1440px;margin:auto;padding:0 80px}.hero{display:grid;grid-template-columns:1fr 1.13fr;gap:80px;align-items:center;padding:90px 0 85px}.hero .eyebrow{letter-spacing:1.8px;margin-bottom:23px}.hero h1{font-size:65px;line-height:1.24;font-weight:680;letter-spacing:-2px;margin-bottom:26px}.hero-highlight{position:relative;z-index:0}.hero-highlight:after{content:"";position:absolute;bottom:5px;left:0;right:0;height:14px;background:#dfe8cc;z-index:-1;transform:rotate(-2deg)}:root[data-theme=dark] .hero-highlight:after{background:#405941}.hero-description{font-size:14px;line-height:1.95;color:var(--muted);margin-bottom:30px}.hero-actions{display:flex;gap:18px;align-items:center}.hero-notes{font-size:10px;color:var(--muted);display:flex;gap:20px;margin-top:27px}.hero-notes span{display:flex;align-items:center;gap:6px}.hero-notes span+span:before{content:"";width:3px;height:3px;border-radius:50%;background:var(--muted);margin-right:8px;opacity:.5}.hero-notes i{display:inline-block;width:9px;height:9px;border:1px solid var(--teal);border-radius:2px;position:relative}.hero-notes i:after{content:"";position:absolute;left:2px;top:0;width:3px;height:5px;border-right:1px solid var(--teal);border-bottom:1px solid var(--teal);transform:rotate(45deg)}
.protocol-art{border:1px solid #d7dfd0;background:#eff2e8;border-radius:14px;min-height:365px;position:relative;display:grid;grid-template-columns:1fr .65fr 1fr .65fr 1fr;align-items:center;padding:61px 24px 80px;box-shadow:0 12px 28px #243a3506;overflow:hidden;isolation:isolate;color:#25483c}.art-grid{position:absolute;inset:0;background-image:radial-gradient(#8ca28755 .7px,transparent .7px);background-size:15px 15px;z-index:-1;mask-image:linear-gradient(black,transparent)}.art-topline{position:absolute;left:23px;right:23px;top:24px;display:flex;gap:6px;align-items:center;font-family:ui-monospace,SFMono-Regular,monospace;font-size:7px;letter-spacing:.7px;color:#627c68}.art-topline>span:last-child{margin-left:auto;font-size:6px;letter-spacing:.3px}.live-dot{width:4px;height:4px;background:#62826a}.protocol-node{display:flex;flex-direction:column;align-items:center;min-width:0;text-align:center;position:relative}.node-icon{width:61px;height:61px;background:#fbfcf6;border:1px solid #d2ddc9;border-radius:13px;display:grid;place-items:center;margin-bottom:15px;box-shadow:0 5px 10px #58784e07}.node-icon svg{width:29px;height:29px}.protocol-node strong{font-size:12px;letter-spacing:1px;line-height:1.7}.protocol-node small{font-size:8px;color:#7e907d;margin-top:2px;white-space:nowrap}.node-tag{font-size:9px;border-radius:4px;border:1px solid #d0ddc6;padding:5px 8px;margin-top:17px;background:#e8eddf;white-space:nowrap;color:#536e54}.node-tag.private{color:#ac6a41;border-color:#e3cfb7;background:#f3e9d8}.protocol-wire{height:60px;align-self:center;position:relative;display:flex;flex-direction:column;align-items:center;margin-top:-50px;color:#8a9b83}.protocol-wire span{font:7px ui-monospace,SFMono-Regular,monospace;letter-spacing:-.15px;margin-top:6px}.protocol-wire i{height:1px;background:#aabb9c;width:100%;position:relative;top:12px}.protocol-wire i:after{content:"";width:4px;height:4px;position:absolute;right:0;top:-2px;border-right:1px solid #91a682;border-top:1px solid #91a682;transform:rotate(45deg)}.wire-two i:after{right:auto;left:0;transform:rotate(-135deg)}.protocol-wire small{font-size:8px;margin-top:25px}.art-caption{position:absolute;bottom:0;left:0;right:0;border-top:1px solid #d7dfd0;background:#e8eddf;display:flex;align-items:center;gap:12px;padding:17px 23px;font-size:9px;line-height:1.7;color:#7c8d75}.art-caption strong{font-weight:550;color:#52694d}.lock-icon{font:25px Georgia,serif;color:#7f9b72;margin-top:-4px}.art-badge{margin-left:auto;color:#68815e;font:7px ui-monospace,monospace;letter-spacing:1px;border:1px solid #c7d6ba;border-radius:20px;padding:5px 9px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:30px}.section-heading .eyebrow{margin-bottom:12px;font-size:9px;letter-spacing:2px}.section-heading h2{font-size:28px;font-weight:620;letter-spacing:-.8px;margin:0;line-height:1.5}.section-heading>p{font-size:12px;color:var(--muted);line-height:1.9;margin:0 0 2px}.reading-path{padding:55px 0 65px;border-top:1px solid var(--line)}.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.path-card{border:1px solid var(--line);background:var(--paper);padding:24px 27px 21px;border-radius:8px;transition:border-color .2s,transform .2s}.path-card:hover{border-color:var(--teal);transform:translateY(-4px)}.path-card>div{display:flex;justify-content:space-between;margin-bottom:25px}.path-number{font:13px ui-monospace,SFMono-Regular,monospace;color:var(--orange);letter-spacing:1px}.path-arrow{font-size:17px;color:var(--muted)}.path-card h3{font-size:18px;font-weight:600;margin-bottom:11px;letter-spacing:.2px}.path-card p{font-size:12px;line-height:1.95;color:var(--muted);margin-bottom:23px}.path-foot{display:block;border-top:1px solid var(--line);padding-top:14px;font-size:10px;letter-spacing:.2px;color:var(--muted)}.chapters-section{padding:13px 0 70px}.chapter-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:43px}.chapter-card{display:flex;gap:20px;align-items:flex-start;border-bottom:1px solid var(--line);padding:25px 5px 26px;transition:background .18s}.chapter-card:hover{background:var(--teal-soft)}.chapter-card-number{font:11px ui-monospace,SFMono-Regular,monospace;color:var(--orange);padding-top:3px;min-width:21px}.chapter-card h3{font-size:14px;line-height:1.5;margin-bottom:9px;font-weight:600;letter-spacing:.1px}.chapter-card p{font-size:11px;line-height:1.9;color:var(--muted);margin:0}.chapter-card-arrow{margin-left:auto;color:var(--muted);font-size:16px;padding-left:10px}.source-note{background:var(--teal-soft);border:1px solid var(--line);border-radius:10px;padding:30px 34px;display:flex;align-items:center;gap:25px;margin:0 0 75px}.source-note-symbol{font:31px Georgia,serif;color:var(--teal);white-space:nowrap;letter-spacing:2px;border:1px solid var(--line);border-radius:8px;display:grid;place-items:center;min-width:70px;height:77px}.source-note .eyebrow{font-size:8px;letter-spacing:1.7px;margin-bottom:6px}.source-note h2{font-size:17px;font-weight:600;letter-spacing:.1px;margin-bottom:9px}.source-note p:last-child{font-size:11px;line-height:1.9;max-width:525px;color:var(--muted);margin:0}.source-note .button{font-size:11px;white-space:nowrap;gap:16px;margin-left:auto;background:var(--paper)}
.site-footer{border-top:1px solid var(--line);padding:30px 56px;display:flex;justify-content:space-between;gap:35px;max-width:1600px;margin:auto;color:var(--muted);font-size:10px;line-height:1.9}.site-footer strong{font-size:11px;font-weight:550;color:var(--ink)}.site-footer p{margin:5px 0 0;max-width:650px;font-size:10px}.site-footer>div:last-child{display:flex;align-items:flex-start;gap:22px;padding-top:1px;white-space:nowrap}.site-footer a:hover{color:var(--orange)}
.docs-layout{max-width:1600px;margin:auto;display:grid;grid-template-columns:270px minmax(0,850px) 220px;justify-content:center;min-height:calc(100vh - 200px)}.sidebar{border-right:1px solid var(--line);padding:37px 24px 30px 26px;position:sticky;top:80px;height:calc(100vh - 80px);overflow:auto;scrollbar-width:thin;display:flex;flex-direction:column}.nav-label{font-size:10px;font-weight:650;letter-spacing:.8px;margin:0 0 18px;color:var(--muted);display:flex;align-items:center;justify-content:space-between}.nav-label>span{font-size:7px;letter-spacing:.6px;opacity:.7}.chapter-nav>a{display:flex;align-items:center;gap:11px;font-size:12px;line-height:1.6;padding:10px 11px;margin:2px -10px;border-radius:5px;color:var(--muted);transition:background .15s,color .15s}.chapter-nav>a:hover{background:var(--teal-soft);color:var(--teal)}.chapter-nav>a.active{background:var(--teal-soft);color:var(--teal);font-weight:600}.nav-number{font:9px ui-monospace,SFMono-Regular,monospace;opacity:.6;width:15px;flex-shrink:0}.active-dot{width:4px;height:4px;border-radius:50%;background:var(--teal);margin-left:auto;flex-shrink:0}.nav-resources{margin-top:22px;padding-top:19px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:13px;font-size:10px;color:var(--muted)}.nav-resources a{display:flex;align-items:center;gap:10px}.nav-resources a>span{width:15px;text-align:center;font-size:14px;color:var(--teal)}.nav-resources a:hover{color:var(--teal)}.sidebar-note{margin-top:30px;padding-top:20px;border-top:1px solid var(--line);font-size:9px;color:var(--muted);line-height:1.6;display:flex;align-items:center;flex-wrap:wrap;gap:7px}.sidebar-note .status-dot{width:4px;height:4px;opacity:.7}.sidebar-note a{width:100%;padding-left:11px;font-size:9px;margin-top:2px}.article-main{padding:32px 58px 64px;min-width:0}.chapter-breadcrumb{display:flex;gap:12px;align-items:center;font-size:10px;color:var(--muted);margin-bottom:38px}.chapter-breadcrumb>span:nth-child(2){opacity:.4}.chapter-breadcrumb a:hover{color:var(--teal)}.article-header{margin-bottom:30px;padding-bottom:28px;border-bottom:1px solid var(--line)}.article-header .eyebrow{font-size:9px;letter-spacing:2px;margin-bottom:14px;color:var(--orange)}.article-header h1{font-size:34px;line-height:1.4;font-weight:650;letter-spacing:-1px;margin-bottom:18px}.article-meta{display:flex;gap:19px;font-size:9px;color:var(--muted);line-height:1.5}.article-meta>span+span{border-left:1px solid var(--line);padding-left:19px}.prose{font-size:14px;line-height:1.95;overflow-wrap:anywhere;letter-spacing:.1px}.prose>p:first-child{font-size:15px;line-height:1.95;color:var(--muted);margin-bottom:29px}.prose p{margin:0 0 20px}.prose h2,.prose h3,.prose h4,.prose h5{position:relative;scroll-margin-top:110px;letter-spacing:-.35px;font-weight:620;line-height:1.5}.prose h2{font-size:23px;margin:42px 0 19px}.prose h3{font-size:18px;margin:31px 0 15px}.prose h4{font-size:15px;margin:25px 0 12px}.prose h5,.prose h6{font-size:14px;margin:24px 0 12px}.heading-anchor{position:relative;margin-left:9px;color:var(--orange)!important;font-size:.68em;opacity:0;transition:opacity .15s;text-decoration:none!important}.prose :is(h2,h3,h4,h5,h6):hover .heading-anchor,.heading-anchor:focus{opacity:1}.prose a{color:var(--teal);text-decoration:underline;text-underline-offset:3px;text-decoration-color:#6e9a844f}.prose a:hover{color:var(--orange);text-decoration-color:currentColor}.external-icon{display:inline-block;font-size:.7em;vertical-align:super;margin-left:2px;opacity:.6;text-decoration:none}.prose strong{font-weight:650}.prose ul,.prose ol{padding-left:23px;margin:0 0 23px}.prose li{padding-left:3px;margin-bottom:8px}.prose li>p{margin-bottom:8px}.prose li::marker{color:var(--muted)}.prose li ul,.prose li ol{margin:9px 0 12px}.prose blockquote{background:var(--teal-soft);border-left:3px solid var(--teal);border-radius:0 5px 5px 0;margin:25px 0;padding:16px 20px;color:var(--muted);font-size:12px;line-height:1.9}.prose blockquote p:last-child{margin:0}.prose blockquote strong{color:var(--teal)}.prose hr{border:0;border-top:1px solid var(--line);margin:35px 0}.prose code:not(pre code){font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.83em;letter-spacing:0;background:var(--teal-soft);border:1px solid var(--line);border-radius:4px;padding:2px 5px;box-decoration-break:clone}.code-block{margin:23px 0 27px;background:var(--code);border-radius:7px;overflow:hidden;border:1px solid #3d454e;font-size:12px;line-height:1.85;letter-spacing:0}.code-bar{padding:8px 15px;border-bottom:1px solid #394149;background:#282e35;display:flex;align-items:center;justify-content:space-between;font:9px ui-monospace,SFMono-Regular,monospace;color:#9eabb8}.copy-code{background:transparent;border:0;color:#b4c0c9;font-size:9px;padding:3px 0 3px 8px;letter-spacing:.3px}.copy-code:hover{color:white}.code-block pre{margin:0!important;padding:18px 18px 21px;overflow:auto;scrollbar-width:thin;font-size:11px;line-height:1.85!important;tab-size:2}.code-block pre code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace!important;font-size:inherit}.prose table{border-collapse:collapse;width:100%;font-size:11px;line-height:1.75;margin:24px 0 29px;display:block;overflow:auto;scrollbar-width:thin}.prose th{text-align:left;background:var(--teal-soft);font-size:10px;white-space:nowrap;font-weight:650}.prose th,.prose td{border:1px solid var(--line);padding:11px 13px;min-width:90px;vertical-align:top}.prose td{background:var(--paper)}.prose td code{white-space:normal}.prose details{border:1px solid var(--line);border-radius:5px;padding:15px 18px;margin:22px 0}.prose summary{cursor:pointer;font-size:13px;font-weight:600}.prose details[open] summary{margin-bottom:15px}.prose img{border-radius:6px;max-width:100%;height:auto}.prose pre:not(.shiki){overflow:auto;padding:18px;background:var(--code);color:#d2dde4;border-radius:6px;font-size:11px}.chapter-end{border-top:1px solid var(--line);margin-top:45px;padding-top:19px;font-size:10px;color:var(--muted);display:flex;gap:9px;align-items:center}.chapter-end .status-dot{width:4px;height:4px}.page-pagination{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}.page-pagination a{border:1px solid var(--line);border-radius:6px;padding:16px 18px;transition:border-color .2s;background:var(--paper)}.page-pagination a:hover{border-color:var(--teal)}.page-pagination small{font-size:9px;color:var(--muted);display:block;margin-bottom:7px}.page-pagination strong{font-size:12px;font-weight:550;line-height:1.6;display:block}.page-pagination .next-page{text-align:right}.toc{padding:87px 22px 35px 0;position:sticky;top:80px;height:calc(100vh - 80px);overflow:auto;scrollbar-width:thin;font-size:10px}.toc .nav-label{font-size:9px;letter-spacing:.5px;margin-bottom:15px}.toc nav{padding-left:18px;border-left:1px solid var(--line)}.toc nav>a{display:block;color:var(--muted);line-height:1.65;padding:5px 0 5px 0;border-left:2px solid transparent;margin-left:-19px;padding-left:17px;transition:color .2s,border-color .2s}.toc nav>a:hover,.toc nav>a.active{color:var(--teal);border-left-color:var(--teal)}.toc nav>a.toc-depth-3{font-size:9px;padding-left:25px}.toc-resources{margin:28px 0 0 18px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:11px;color:var(--muted);font-size:9px}.toc-resources a:hover{color:var(--orange)}
.full-guide{max-width:900px;margin:auto;padding:65px 50px}.full-guide .article-header h1{font-size:39px}.guide-intro{font-size:14px;color:var(--muted);line-height:1.9}.guide-actions{display:flex;gap:15px;margin:25px 0}.guide-index{columns:2;column-gap:38px;padding-left:20px;font-size:12px;line-height:1.9;margin:32px 0 0}.guide-index li{padding-left:5px;margin-bottom:8px;break-inside:avoid}.guide-index li::marker{color:var(--orange);font:10px ui-monospace,monospace}.guide-index a:hover{color:var(--orange)}.guide-chapter{scroll-margin-top:110px;padding-top:45px;padding-bottom:25px;border-bottom:1px solid var(--line)}.guide-chapter>.eyebrow{margin-bottom:14px;color:var(--orange)}.guide-chapter>h2{font-size:30px;line-height:1.5;font-weight:620;letter-spacing:-.6px;margin-bottom:25px}.guide-chapter .prose h3{font-size:22px;margin-top:35px}.guide-chapter .prose h4{font-size:18px}.not-found-main{max-width:780px;margin:auto;min-height:65vh;padding:100px 35px}.not-found-main h1{font-size:35px;line-height:1.5;font-weight:600}.not-found-main>p:not(.eyebrow){font-size:14px;line-height:1.9;color:var(--muted);margin-bottom:30px}
.search-dialog{padding:0;max-width:620px;width:calc(100% - 36px);border:1px solid var(--line);border-radius:12px;background:var(--paper);color:var(--ink);box-shadow:var(--shadow);margin:14vh auto auto;overflow:hidden}.search-dialog::backdrop,.nav-dialog::backdrop{background:#17231f55;backdrop-filter:blur(4px)}.search-top{display:flex;align-items:center;gap:13px;padding:19px 21px;border-bottom:1px solid var(--line)}.search-top>svg{width:20px;height:20px;color:var(--muted);flex-shrink:0}.search-top input{width:100%;background:none;border:0;font-size:14px;outline:none;color:var(--ink);min-width:0}.search-top input::placeholder{color:var(--muted)}.dialog-close{border:1px solid var(--line);border-radius:4px;background:var(--bg);font-size:9px;padding:4px 7px;color:var(--muted)}.search-results{max-height:52vh;overflow:auto;padding:10px}.search-empty{text-align:center;color:var(--muted);font-size:12px;line-height:1.8;padding:35px 20px;margin:0}.search-result{display:block;border-radius:6px;padding:15px 13px}.search-result:hover,.search-result:focus{background:var(--teal-soft)}.search-result small{font-size:9px;color:var(--orange);display:block;margin-bottom:7px}.search-result strong{display:block;font-size:13px;font-weight:600;line-height:1.6;margin-bottom:5px}.search-result p{font-size:10px;line-height:1.85;color:var(--muted);margin:0}.search-result mark{background:var(--orange-soft);color:var(--orange);border-radius:2px}.search-hint{padding:13px 20px;border-top:1px solid var(--line);font-size:9px;color:var(--muted);background:var(--bg)}.nav-dialog{padding:0 23px 30px;width:min(350px,90vw);height:100dvh;max-height:100dvh;max-width:90vw;margin:0;border:0;border-right:1px solid var(--line);background:var(--bg);color:var(--ink)}.mobile-nav-header{height:75px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);margin-bottom:25px;font-size:14px;font-weight:600}.mobile-nav-header .icon-button{font-size:28px}.nav-dialog .chapter-nav>a{font-size:13px;padding:12px}.toast{position:fixed;bottom:30px;left:50%;transform:translate(-50%,15px);border:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow);color:var(--ink);font-size:12px;padding:12px 20px;border-radius:6px;z-index:90;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}.toast.visible{opacity:1;transform:translate(-50%,0)}
@media(min-width:1500px){.docs-layout{grid-template-columns:285px minmax(0,880px) 235px}.sidebar{padding-left:36px;padding-right:30px}.article-main{padding-left:70px;padding-right:70px}}
@media(max-width:1250px){.header-inner{padding:0 32px;gap:30px}.top-links{gap:22px}.header-actions{gap:12px}.home-main{padding:0 55px}.hero{gap:45px;padding-top:75px;padding-bottom:70px}.hero h1{font-size:57px}.protocol-art{min-height:340px;padding-left:18px;padding-right:18px}.node-icon{width:54px;height:54px}.art-topline{left:18px;right:18px;font-size:6px}.art-topline>span:last-child{font-size:5px}.site-footer{padding-left:32px;padding-right:32px}.site-footer>div:last-child{gap:15px}.docs-layout{grid-template-columns:235px minmax(0,800px) 185px}.sidebar{padding-left:22px;padding-right:20px}.article-main{padding-left:38px;padding-right:38px}.toc{padding-right:15px}.chapter-nav>a{font-size:11px}.toc nav>a{font-size:9px}.source-note{padding:26px;gap:20px}.source-note .button{padding-left:14px;padding-right:14px;gap:12px}}
@media(max-width:1080px){.docs-layout{grid-template-columns:235px minmax(0,800px)}.toc{display:none}.article-main{padding-left:45px;padding-right:45px}.top-links{gap:20px}.search-trigger{width:145px}.hero{grid-template-columns:1fr 1fr;gap:30px}.hero h1{font-size:49px}.hero-notes{gap:10px;font-size:8px}.hero-notes span+span:before{margin-right:4px}.protocol-art{min-height:328px;padding-left:14px;padding-right:14px}.art-topline>span:last-child{display:none}.protocol-wire span{font-size:6px}.protocol-node small{font-size:6px}.node-tag{font-size:8px;padding:5px 6px}.art-caption{padding-left:17px;padding-right:17px;gap:10px}.art-badge{font-size:6px;padding:5px 7px}.source-note-symbol{display:none}.source-note p:last-child{max-width:540px}.site-footer{flex-direction:column;gap:18px}.site-footer>div:last-child{gap:25px}.path-card{padding:22px}.chapter-grid{column-gap:26px}.chapter-card{gap:15px}}
@media(max-width:820px){:root{--header-height:70px}.header-inner{padding:0 24px;gap:22px}.site-header{height:70px}.brand{font-size:20px}.brand-cn{font-size:10px}.brand-symbol{width:34px;height:34px}.top-links{display:none}.header-actions{margin-left:auto;gap:14px}.search-trigger{width:152px}.mobile-menu{display:grid}.home-main{padding:0 35px}.hero{padding:60px 0 55px;gap:30px}.hero h1{font-size:43px;letter-spacing:-1.5px}.hero .eyebrow{font-size:8px;letter-spacing:1px;gap:6px}.hero-description{font-size:12px}.hero-actions{gap:11px}.hero-actions .button{font-size:11px;gap:13px;padding:11px 14px;min-height:41px}.hero-actions .button-text{padding-left:0;padding-right:0}.hero-notes{flex-direction:column;gap:7px;margin-top:24px;font-size:8px}.hero-notes span+span:before{display:none}.hero-notes span+span{padding-left:15px}.protocol-art{min-height:315px;border-radius:10px;padding:50px 13px 80px}.node-icon{width:45px;height:45px;border-radius:10px;margin-bottom:12px}.node-icon svg{width:25px;height:25px}.protocol-node strong{font-size:10px;letter-spacing:.5px}.protocol-node small{font-size:5px}.protocol-wire{margin-top:-45px}.protocol-wire span{font-size:5px}.protocol-wire small{font-size:6px}.art-topline{font-size:5px;letter-spacing:.3px;left:13px;right:13px;top:20px;gap:4px}.art-caption{font-size:8px;padding:15px 13px;gap:7px}.art-badge{display:none}.node-tag{font-size:7px;padding:4px;margin-top:14px}.path-grid{gap:13px}.path-card{padding:20px 18px}.path-card p{font-size:10px}.path-foot{font-size:8px}.section-heading h2{font-size:24px}.section-heading>p{font-size:10px}.source-note h2{font-size:16px}.source-note p:last-child{font-size:10px}.source-note .button{font-size:9px;gap:10px}.docs-layout{display:block}.sidebar{display:none}.article-main{max-width:790px;margin:auto;padding:30px 45px 55px}.article-header h1{font-size:32px}.chapter-breadcrumb{margin-bottom:30px}.prose{font-size:14px}.full-guide{padding:45px 35px}.search-dialog{margin-top:10vh}.reading-path{padding-top:43px}.guide-chapter{scroll-margin-top:90px}.toc nav>a{font-size:10px}}
@media(max-width:600px){.header-inner{padding:0 20px}.brand-symbol{width:32px;height:32px;border-radius:10px}.brand-symbol svg{width:25px;height:25px}.brand{font-size:18px;gap:8px}.brand-cn{font-size:9px;letter-spacing:1px;margin-top:4px}.header-actions{gap:10px}.search-trigger{width:30px;border:0;background:none;padding:4px;justify-content:center}.search-trigger svg{width:19px;height:19px}.search-trigger span,.search-trigger kbd{display:none}.header-actions .icon-button{width:26px}.home-main{padding:0 24px}.hero{grid-template-columns:1fr;padding:48px 0 46px;gap:37px}.hero .eyebrow{font-size:9px;letter-spacing:1.5px;margin-bottom:18px}.hero h1{font-size:clamp(32px,9.5vw,40px);letter-spacing:-1.3px;margin-bottom:22px}.hero h1 .desktop-break{display:none}.hero-highlight:after{height:10px;bottom:5px}.hero-description{font-size:13px;margin-bottom:25px;line-height:1.95}.hero-description .desktop-break{display:none}.hero-actions{gap:20px}.hero-actions .button{font-size:12px;gap:20px;min-height:44px;padding:11px 18px}.hero-actions .button-text{padding:11px 0}.hero-notes{flex-direction:row;gap:13px;font-size:8px;margin-top:22px;flex-wrap:wrap}.hero-notes span+span{padding-left:0}.hero-notes span+span:before{display:block;width:2px;height:2px;margin-right:4px}.protocol-art{min-height:310px;padding:61px 26px 80px}.node-icon{width:56px;height:56px;margin-bottom:13px}.node-icon svg{width:28px;height:28px}.protocol-node strong{font-size:12px}.protocol-node small{font-size:7px}.node-tag{font-size:8px;padding:4px 7px;margin-top:15px}.art-topline{left:21px;right:21px;font-size:6px;letter-spacing:.5px}.art-topline>span:last-child{display:block;font-size:5px}.protocol-wire span{font-size:6px}.protocol-wire small{font-size:7px}.protocol-wire{margin-top:-50px}.art-caption{font-size:9px;padding:15px 21px;gap:10px}.art-badge{display:block;font-size:6px}.reading-path{padding:35px 0 40px}.section-heading{align-items:flex-start;margin-bottom:24px;gap:17px}.section-heading h2{font-size:23px;line-height:1.5;letter-spacing:-.7px}.section-heading .eyebrow{font-size:8px;letter-spacing:1.6px;margin-bottom:9px}.section-heading>p{display:none}.path-grid{grid-template-columns:1fr;gap:13px}.path-card{padding:21px 24px;display:grid;grid-template-columns:1fr auto;column-gap:20px;position:relative}.path-card>div{margin:0;display:contents}.path-number{grid-column:1;grid-row:1;font-size:11px;margin-bottom:13px;display:block}.path-arrow{position:absolute;right:23px;top:22px}.path-card h3{grid-column:1;grid-row:2;font-size:18px;margin-bottom:0}.path-card p{grid-column:2;grid-row:1/4;align-self:center;font-size:10px;margin:0;padding-top:8px;padding-right:5px}.path-foot{grid-column:1/3;margin-top:16px;font-size:8px;padding-top:12px}.chapters-section{padding-bottom:40px}.chapters-section .section-heading{flex-direction:column;gap:12px}.quiet-link{font-size:10px;gap:20px;padding:4px 0}.chapter-grid{grid-template-columns:1fr}.chapter-card{padding:22px 2px;gap:17px}.chapter-card h3{font-size:13px}.chapter-card p{font-size:10px}.source-note{padding:25px;flex-direction:column;align-items:flex-start;gap:19px;margin-bottom:45px}.source-note h2{font-size:17px;line-height:1.5}.source-note p:last-child{font-size:11px}.source-note .eyebrow{font-size:8px}.source-note .button{margin:0;font-size:10px;padding:10px 15px;min-height:40px;gap:20px}.site-footer{padding:25px 24px;gap:18px}.site-footer strong{font-size:10px}.site-footer p{font-size:9px;line-height:1.9}.site-footer>div:last-child{gap:15px;flex-wrap:wrap;font-size:9px}.site-footer>div:last-child>span{width:100%}.article-main{padding:25px 24px 45px}.chapter-breadcrumb{font-size:9px;margin-bottom:28px}.article-header{padding-bottom:23px;margin-bottom:25px}.article-header h1{font-size:29px;letter-spacing:-.8px;margin-bottom:16px}.article-header .eyebrow{font-size:8px;margin-bottom:13px}.article-meta{font-size:8px;gap:13px}.article-meta>span+span{padding-left:13px}.prose{font-size:13px;line-height:1.95}.prose>p:first-child{font-size:14px}.prose h2{font-size:21px;margin-top:34px}.prose h3{font-size:17px;margin-top:29px}.prose h4{font-size:15px}.prose blockquote{padding:14px 17px;font-size:11px;margin:22px 0}.prose th,.prose td{padding:10px;min-width:95px}.prose table{font-size:10px}.code-block{margin-left:-6px;margin-right:-6px;border-radius:6px}.code-block pre{font-size:10px;padding:15px}.code-bar{padding:7px 13px;font-size:8px}.copy-code{font-size:8px}.page-pagination{gap:11px}.page-pagination a{padding:14px 13px}.page-pagination strong{font-size:11px}.page-pagination small{font-size:8px}.chapter-end{font-size:9px}.full-guide{padding:38px 24px}.full-guide .article-header h1{font-size:31px}.guide-intro{font-size:13px}.guide-index{columns:1;font-size:11px}.guide-actions{gap:10px;flex-wrap:wrap}.guide-actions .button{font-size:11px;gap:12px;padding:11px 15px}.guide-chapter>h2{font-size:25px}.guide-chapter .prose h3{font-size:20px}.guide-chapter .prose h4{font-size:17px}.search-top{padding:16px;gap:10px}.search-top input{font-size:12px}.search-result p{font-size:10px}.search-result strong{font-size:12px}.search-results{max-height:60vh}.not-found-main{padding:70px 24px}.not-found-main h1{font-size:28px}.not-found-main>p:not(.eyebrow){font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}.button:hover,.path-card:hover{transform:none}}
@media print{:root,:root[data-theme=dark]{--bg:#fff;--paper:#fff;--ink:#111;--muted:#555;--line:#ccc;--teal:#164b3c;--teal-soft:#f1f4ed;color-scheme:light}.site-header,.sidebar,.toc,.site-footer,.page-pagination,.chapter-breadcrumb,.chapter-end,.guide-actions,.heading-anchor,.copy-code,.code-bar,.skip-link,dialog,.toast{display:none!important}.docs-layout{display:block}.article-main,.full-guide{padding:0;max-width:none}.article-header{padding-top:0;margin-top:0}.prose{font-size:10pt;line-height:1.6}.prose>p:first-child{font-size:11pt}.prose h2{font-size:17pt}.prose h3{font-size:14pt}.prose h4{font-size:12pt}.prose a{color:inherit;text-decoration:underline}.external-icon{display:none}.code-block{break-inside:avoid;white-space:pre-wrap;background:#f5f5f5;border-color:#ddd}.code-block pre{white-space:pre-wrap;overflow:visible;background:#f5f5f5!important;color:#111!important;font-size:8pt;line-height:1.55!important}.code-block pre span{color:#111!important}.prose table{display:table;font-size:8pt}.prose th,.prose td{padding:7px}.prose blockquote{break-inside:avoid;background:#f5f5f5}.guide-chapter{break-before:page;padding-top:0;border-bottom:0}.guide-index{columns:2}.guide-chapter h2,.prose h2,.prose h3,.prose h4{break-after:avoid}.guide-chapter>.eyebrow{padding-top:8px}.home-main{padding:0}.hero{padding-top:0}.hero h1{font-size:40pt}.protocol-art{break-inside:avoid}.path-card{break-inside:avoid}.chapter-card{break-inside:avoid}@page{size:A4;margin:18mm}}