/* Shared application shell, loaded after the page-specific base styles.
   All pages share the same main navigation; gallery categories form a second bar.
   Narrow screens put the four main links on a full-width header row. */
:root{
  --fz-rail-width:56px;
  --fz-header-height:64px;
  --fz-mobile-nav-height:calc(56px + env(safe-area-inset-bottom,0px));
  --fz-ink:#171719;
  --fz-muted:#707078;
  --fz-border:#e7e7ea;
  --fz-surface:#fff;
  --fz-subtle:#f7f7f8;
  --fz-font:Arial,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  color-scheme:light;
}
html{background:#fff;scroll-padding-top:76px;scrollbar-gutter:stable}
body{
  width:calc(100% - var(--fz-rail-width));
  min-width:0;
  min-height:100vh;
  margin-left:var(--fz-rail-width);
  color:var(--fz-ink);
  background:var(--fz-surface);
  font-family:var(--fz-font);
  font-size:14px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--fz-ink)}
button,input,select,textarea{font-family:var(--fz-font)}
button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}
:where(button,input,select,textarea){font-size:14px;line-height:1.5}
:where(input,select,textarea){max-width:100%;min-width:0}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex="-1"]:focus-visible{
  outline:2px solid #3d3d43;outline-offset:3px;
}
.fz-shell{max-width:1440px;padding:0 32px;min-width:0}
.fz-skip{position:fixed;left:var(--fz-rail-width);color:var(--fz-ink);z-index:100}

/* Navigation rail */
.fz-app-rail{
  position:fixed;inset:0 auto 0 0;z-index:30;
  display:flex;flex-direction:column;align-items:center;
  width:var(--fz-rail-width);background:#f8f8f9;border-right:1px solid var(--fz-border);
}
.fz-rail-brand{
  flex:none;display:flex;align-items:center;justify-content:center;
  width:32px;height:32px;margin:12px 0 20px;border-radius:5px;
  background:var(--fz-ink);color:#fff;font-size:21px;font-weight:700;line-height:1;letter-spacing:-1px;
}
.fz-rail-brand:hover{color:#fff;background:#333338;text-decoration:none}
.fz-rail-nav{display:flex;flex-direction:column;align-items:center;gap:12px;width:100%}
.fz-rail-link{
  display:flex;align-items:center;justify-content:center;flex:none;
  width:38px;height:38px;border-radius:6px;color:#6a6a73;text-decoration:none;
  transition:background-color .15s ease,color .15s ease;
}
.fz-rail-link svg{flex:none}
.fz-rail-link span{display:none}
.fz-rail-link:hover{color:var(--fz-ink);background:#eeeef0;text-decoration:none}
.fz-rail-link[aria-current="page"]{color:#111;background:#e6e6e9}
.fz-rail-external{margin:auto 0 14px}

/* Shared main navigation. */
.fz-header{
  position:sticky;top:0;z-index:25;background:rgba(255,255,255,.98);
  height:var(--fz-header-height);color:var(--fz-ink);border-bottom:1px solid var(--fz-border);
}
.fz-header-inner{
  display:flex;flex-direction:row;align-items:center;
  min-height:calc(var(--fz-header-height) - 1px);height:calc(var(--fz-header-height) - 1px);gap:40px;
  padding-top:0;padding-bottom:0;max-width:none;
}
.fz-logo{display:inline-flex;align-items:baseline;gap:8px;flex:none;color:var(--fz-ink);white-space:nowrap;text-decoration:none}
.fz-logo:hover{color:var(--fz-ink);text-decoration:none}
.fz-logo b{font-size:20px;font-weight:750;letter-spacing:-.6px;line-height:1}
.fz-logo span{font-size:13px;font-weight:600;letter-spacing:0;color:#242429}
.fz-nav{display:flex;align-items:center;flex-wrap:nowrap;gap:8px;margin-left:0;min-width:0}
.fz-nav a{
  display:flex;align-items:center;justify-content:center;min-height:34px;padding:7px 15px;
  border-radius:5px;color:#6b6b73;font-size:13px;font-weight:500;line-height:20px;
  text-decoration:none;white-space:nowrap;
}
.fz-nav a:hover{color:var(--fz-ink);background:#f3f3f5;text-decoration:none}
.fz-nav a[aria-current="page"]{color:#fff;background:#171719}
.fz-mobile-section{display:none}

/* Content primitives: the existing page markup shares the same neutral palette. */
.fz-main{min-width:0;min-height:calc(100svh - 190px);padding:36px 0 64px}
.fz-hero{padding:38px 0 32px;background:#fff;color:var(--fz-ink);border-bottom:1px solid var(--fz-border)}
.fz-hero h1{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.7px;margin-bottom:10px}
.fz-hero p{color:var(--fz-muted);font-size:14px;line-height:1.75}
.fz-hero-note{color:var(--fz-muted);background:var(--fz-subtle);border-left:2px solid #d2d2d8;border-radius:3px}
.fz-hero-note strong{color:var(--fz-ink)}
.fz-title{color:var(--fz-ink);font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.5px;overflow-wrap:anywhere}
.fz-section-title,.fz-block h2,.fz-block h3,.fz-side-card h3,.fz-empty h4,.fz-col-head{color:var(--fz-ink)}
.fz-crumb{font-size:12px;color:#7a7a82;margin-bottom:22px}
.fz-crumb a,.fz-muted,.fz-meta{color:var(--fz-muted)}
.fz-meta{gap:8px 18px;line-height:1.65}
.fz-block{margin-bottom:30px}
.fz-block h2{font-size:20px;font-weight:650;margin-bottom:14px}
.fz-block h3{font-weight:600}
.fz-block p,.fz-block li{color:#44444c;line-height:1.85}
.fz-grid{gap:20px}
.fz-card,.fz-detail,.fz-side-card,.fz-col{
  min-width:0;border:1px solid var(--fz-border);border-radius:7px;background:#fff;box-shadow:none;
}
.fz-card{gap:14px;padding:22px}
.fz-card h3{font-size:18px;line-height:1.5;font-weight:650;color:var(--fz-ink)}
.fz-card p,.fz-card-foot,.fz-side-card p,.fz-side-card li{color:var(--fz-muted)}
.fz-card-foot .go{color:var(--fz-ink);font-weight:600}
.fz-detail{padding:30px}
.fz-side-card{padding:22px}
.fz-layout{gap:28px}
.fz-layout>*{min-width:0}
.fz-input-group,.fz-copybox,.fz-code,.fz-inline-code{background:var(--fz-subtle);border-color:var(--fz-border)}
.fz-input-group,.fz-copybox,.fz-code{border-radius:6px}
.fz-copybox-head,.fz-code .head{background:#f4f4f6;border-color:var(--fz-border);color:#5f5f68}
.fz-pre,.fz-code pre{color:#37373f;font-size:12.5px;line-height:1.8}
.fz-pre{padding:18px}
.fz-copy-btn,.fz-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:36px;
  border:1px solid #171719;border-radius:5px;background:#171719;color:#fff;
  padding:8px 14px;font-size:13px;line-height:1.5;font-weight:500;cursor:pointer;
}
.fz-copy-btn:hover,.fz-btn:hover{background:#37373e;border-color:#37373e;color:#fff;text-decoration:none}
.fz-copy-btn:focus-visible{outline:2px solid #3d3d43;outline-offset:3px;box-shadow:none}
.fz-copy-btn.is-copied{background:#28734b;border-color:#28734b}
.fz-btn.ghost{border:1px solid #d6d6dc;background:#fff;color:var(--fz-ink)}
.fz-btn.ghost:hover{background:#f3f3f5}
.fz-actions{gap:10px}
.fz-actions .fz-btn{min-height:40px}
.fz-tabs{gap:8px;margin-bottom:22px}
.fz-tab{border-radius:5px;border-color:var(--fz-border);font-size:13px;font-weight:500;color:#62626b;padding:8px 15px}
.fz-tab:hover{border-color:#bdbdc5;color:var(--fz-ink)}
.fz-tab.is-active{background:#171719;border-color:#171719;color:#fff}
.fz-tag,.fz-col-head .n{color:#55555f;background:#f0f0f3;font-weight:500;border-radius:4px}
.fz-badge{font-weight:500}
.fz-empty{border:1px dashed #d8d8dd;border-radius:7px;padding:44px 24px}
.fz-empty p{color:var(--fz-muted);line-height:1.8}
.fz-cta{border:1px solid var(--fz-border);border-radius:7px;background:var(--fz-subtle);color:var(--fz-ink);padding:24px}
.fz-cta h3{color:var(--fz-ink);font-weight:600}
.fz-cta p{color:var(--fz-muted)}
.fz-alert{border-radius:5px;line-height:1.8}
.fz-alert.info{color:#54545e;background:#f7f7f9;border-color:#e3e3e8;border-left-color:#a7a7b1}
.fz-alert.info b{color:#37373e}
.fz-list-plain li:before{color:var(--fz-ink)}
.fz-link-list a{overflow-wrap:anywhere}

/* The screening tool remains a full-width embed, with no second introduction. */
.fz-main.screening-main{min-height:0;padding:0}
.screening-frame-wrap{width:100%;max-width:none;border:0;border-radius:0;box-shadow:none}
.screening-frame-wrap iframe{display:block;width:100%;height:max(680px,calc(100svh - var(--fz-header-height)));border:0}

/* Quiet footer; preview state is provided by renderDocument, not global state. */
.fz-footer{margin-top:0;padding:24px 0;background:#fff;color:var(--fz-muted);border-top:1px solid var(--fz-border)}
.fz-footer-inner{align-items:center;gap:18px;min-width:0}
.fz-footer-brand{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.fz-footer-brand>a{display:inline-flex;align-items:baseline;gap:8px;color:var(--fz-ink);text-decoration:none}
.fz-footer-brand b{color:var(--fz-ink);font-size:15px;letter-spacing:-.3px}
.fz-footer-brand>a span{font-size:12px;color:var(--fz-muted)}
.fz-preview-note{font-size:11px;color:#9999a0;white-space:nowrap}
.fz-footer nav{gap:20px}
.fz-footer nav a{margin:0;color:#777780;font-size:12px}
.fz-footer nav a:hover{color:var(--fz-ink)}
.gallery-page{background:#fff}

/* Compact, readable API documentation. */
.connect-main .fz-shell{max-width:1280px}
.connect-heading{padding:6px 0 34px;border-bottom:1px solid var(--fz-border);margin-bottom:34px}
.connect-heading h1{font-size:34px;line-height:1.35;font-weight:700;letter-spacing:-.8px;margin:0 0 10px}
.connect-heading p{font-size:15px;color:var(--fz-muted);line-height:1.8}
.connect-layout{display:grid;grid-template-columns:160px minmax(0,1fr);gap:56px;align-items:start}
.connect-toc{position:sticky;top:88px;display:flex;flex-direction:column;gap:4px}
.connect-toc a{display:block;padding:8px 12px;border-radius:5px;color:#777780;font-size:13px;line-height:20px;text-decoration:none}
.connect-toc a:hover,.connect-toc a:focus-visible{color:#171719;background:#f5f5f7}
.connect-toc .connect-index-link{margin-top:16px;border-top:1px solid var(--fz-border);border-radius:0;padding-top:20px;font-size:12px;color:#96969e}
.connect-docs{min-width:0;max-width:864px}
.connect-section{scroll-margin-top:16px;padding-bottom:38px;margin-bottom:34px;border-bottom:1px solid var(--fz-border)}
.connect-section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.connect-section h2{font-size:22px;line-height:1.4;font-weight:650;letter-spacing:-.3px;margin:0 0 14px}
.connect-section h3{font-size:15px;line-height:1.6;font-weight:600;margin:22px 0 8px}
.connect-section p{font-size:14px;line-height:1.85;color:#666670;margin:0 0 16px;overflow-wrap:anywhere}
.connect-section p:last-child{margin-bottom:0}
.connect-section code{font-size:.9em;overflow-wrap:anywhere;color:#373740}
.connect-section p>code,.connect-facts code{padding:2px 5px;border-radius:3px;background:#f4f4f6}
.connect-section .connect-note{font-size:12px;color:#919199;line-height:1.85}
.connect-section .fz-copybox{margin:18px 0 14px}
.connect-section .fz-pre{font-size:12px;line-height:1.95}
.connect-section .fz-copybox-head{padding:10px 16px;background:#f8f8f9}
.connect-section .fz-copybox-head span{font-size:12px;font-weight:500;color:#84848d}
.connect-section .fz-copy-btn{min-height:28px;padding:4px 10px;background:#fff;border:1px solid #dcdce2;font-size:11px;color:#55555f}
.connect-section .fz-copy-btn:hover{color:#111;border-color:#b2b2bd;background:#f3f3f6}
.connect-section .fz-copy-btn.is-copied{color:#267146;border-color:#b7d9c4;background:#eff8f2}
.connect-callout{border-left:2px solid #dcdce2;padding:2px 0 2px 16px;margin-top:22px}
.connect-callout p{font-size:12px;color:#888891}
.connect-endpoint{display:flex;align-items:baseline;gap:10px;margin:18px 0 14px;min-width:0}
.connect-endpoint>span{color:#26764d;font-size:11px;font-weight:700;line-height:1.5;flex:none}
.connect-endpoint>code{font-size:13px;font-weight:500;color:#36363e;line-height:1.6;overflow-wrap:anywhere}
.connect-section .fz-table-wrap{margin:18px 0 22px;border:1px solid var(--fz-border);border-radius:5px}
table.connect-table{font-size:12px;line-height:1.8;table-layout:fixed}
table.connect-table th,table.connect-table td{padding:13px 16px;border:0;border-bottom:1px solid var(--fz-border);color:#6a6a74}
table.connect-table th{color:#8b8b94;background:#fafafa;font-size:11px;font-weight:500}
table.connect-table tbody tr:last-child td{border-bottom:0}
table.connect-table th:first-child,table.connect-table td:first-child{width:90px}
#list-api table.connect-table th:last-child,#list-api table.connect-table td:last-child{width:76px}
#errors table.connect-table th:nth-child(2),#errors table.connect-table td:nth-child(2){width:180px}
.connect-evidence{border:1px solid var(--fz-border);border-radius:5px;margin-top:20px;overflow:hidden}
.connect-evidence summary{padding:13px 16px;color:#72727c;font-size:12px;cursor:pointer}
.connect-evidence summary:hover{color:var(--fz-ink);background:#f8f8f9}
.connect-evidence[open] summary{border-bottom:1px solid var(--fz-border)}
.connect-evidence dl{padding:16px;display:flex;flex-direction:column;gap:16px}
.connect-evidence dt{font-size:11px;color:#9999a2;margin-bottom:3px}
.connect-evidence dd{font-size:12px;line-height:1.85;color:#70707b;overflow-wrap:anywhere}
.connect-facts{margin-top:20px}
.connect-facts>div{display:grid;grid-template-columns:108px minmax(0,1fr);gap:16px;border-bottom:1px solid #f0f0f3;padding:12px 0;font-size:13px;line-height:1.8}
.connect-facts>div:first-child{padding-top:0}
.connect-facts>div:last-child{border-bottom:0;padding-bottom:0}
.connect-facts dt{color:#9898a1}
.connect-facts dd{color:#63636f;min-width:0;overflow-wrap:anywhere}
.connect-facts a{color:#42424d;text-decoration:underline;text-underline-offset:3px}
.connect-facts+.connect-note{margin-top:24px}
.not-found-main{display:flex;align-items:center;min-height:calc(100svh - 140px)}
.not-found-content{max-width:620px;margin:0 auto;text-align:center;padding:64px 0 80px}
.not-found-code{display:block;font-size:76px;line-height:1;font-weight:650;letter-spacing:-4px;color:#dcdce2;margin-bottom:30px}
.not-found-content h1{font-size:26px;font-weight:650;letter-spacing:-.5px;line-height:1.4;margin-bottom:12px}
.not-found-content p{font-size:14px;color:#93939d;margin-bottom:30px}
.not-found-content .fz-actions{justify-content:center}

@media(min-width:768px) and (max-width:1050px){
  .fz-shell{padding-left:24px;padding-right:24px}
  .fz-header-inner{gap:22px}
  .fz-logo span{display:none}
  .fz-nav{gap:4px}
  .fz-nav a{padding-left:11px;padding-right:11px}
  .connect-layout{grid-template-columns:132px minmax(0,1fr);gap:28px}
  #errors table.connect-table th:nth-child(2),#errors table.connect-table td:nth-child(2){width:145px}
}
@media(max-width:767px){
  :root{--fz-rail-width:0px}
  html{scroll-padding-top:72px}
  body{width:100%;margin-left:0;padding-bottom:var(--fz-mobile-nav-height)}
  .fz-shell{padding-left:20px;padding-right:20px}
  .fz-app-rail{
    inset:auto 0 0;width:100%;height:var(--fz-mobile-nav-height);
    border-right:0;border-top:1px solid var(--fz-border);background:rgba(255,255,255,.98);
    padding-bottom:env(safe-area-inset-bottom,0px);
  }
  .fz-rail-brand,.fz-rail-external{display:none}
  .fz-rail-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));height:56px;gap:0;padding:0 8px}
  .fz-rail-link{width:100%;height:48px;gap:3px;flex-direction:column;border-radius:5px;color:#83838b}
  .fz-rail-link svg{width:18px;height:18px}
  .fz-rail-link span{display:block;font-size:10px;line-height:15px;white-space:nowrap}
  .fz-rail-link[aria-current="page"]{color:#151519;background:transparent;font-weight:600}
  .fz-rail-link[aria-current="page"] svg{stroke-width:2.2}
  .fz-rail-link:hover{background:transparent;color:#151519}
  .fz-header{position:sticky}
  .fz-header-inner{height:55px;min-height:55px;flex-direction:row;align-items:center;justify-content:space-between;gap:16px;padding-top:0;padding-bottom:0}
  .fz-logo{gap:7px}
  .fz-logo b{font-size:19px}
  .fz-logo span{font-size:11px;display:inline}
  .fz-nav{display:none}
  .fz-main{padding:26px 0 40px;min-height:calc(100svh - 190px - var(--fz-mobile-nav-height))}
  .fz-hero{padding:28px 0 24px}
  .fz-hero h1{font-size:27px;line-height:1.35;letter-spacing:-.5px}
  .fz-hero p{font-size:13px}
  .fz-title{font-size:25px}
  .fz-crumb{margin-bottom:18px}
  .fz-card,.fz-detail,.fz-side-card{padding:20px}
  .fz-layout{gap:20px}
  .fz-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .fz-block h2{font-size:18px}
  .fz-footer{padding:22px 0}
  .fz-footer-inner{gap:16px}
  .fz-footer nav{gap:20px}
  .screening-frame-wrap iframe{height:max(620px,calc(100svh - var(--fz-header-height) - var(--fz-mobile-nav-height)))}
  .connect-heading{padding:2px 0 24px;margin-bottom:0}
  .connect-heading h1{font-size:29px;letter-spacing:-.6px}
  .connect-heading p{font-size:13px}
  .connect-layout{display:block}
  .connect-toc{position:static;flex-direction:row;gap:3px;padding:14px 0 24px;overflow-x:auto;max-width:100%;scrollbar-width:none}
  .connect-toc::-webkit-scrollbar{display:none}
  .connect-toc a{flex:none;white-space:nowrap;padding:7px 10px;font-size:12px;background:#f7f7f9}
  .connect-toc .connect-index-link{display:none}
  .connect-section{scroll-margin-top:8px;padding-bottom:28px;margin-bottom:28px}
  .connect-section h2{font-size:20px}
  .connect-section p{font-size:13px;line-height:1.85}
  .connect-section .connect-note,.connect-callout p{font-size:11px}
  .connect-section .fz-pre{padding:14px;font-size:11px}
  .connect-section .fz-copybox-head{padding:8px 12px}
  .connect-section .fz-copybox-head span{font-size:11px}
  .connect-section .fz-copy-btn{min-height:32px;padding:5px 10px}
  .connect-endpoint{gap:8px}
  .connect-endpoint>code{font-size:11px}
  table.connect-table{font-size:11px}
  table.connect-table th,table.connect-table td{padding:10px 9px}
  table.connect-table th:first-child,table.connect-table td:first-child{width:72px}
  #list-api table.connect-table th:last-child,#list-api table.connect-table td:last-child{width:50px}
  #errors table.connect-table th:first-child,#errors table.connect-table td:first-child{width:48px;white-space:nowrap}
  #errors table.connect-table th:nth-child(2),#errors table.connect-table td:nth-child(2){width:126px}
  .connect-facts>div{grid-template-columns:78px minmax(0,1fr);gap:12px;font-size:12px}
  .not-found-main{min-height:calc(100svh - 210px - var(--fz-mobile-nav-height))}
  .not-found-content{padding:40px 0 48px}
  .not-found-code{font-size:64px;margin-bottom:24px}
  .not-found-content h1{font-size:23px}
  .not-found-content p{font-size:12px}
  .not-found-content .fz-actions .fz-btn{font-size:12px;padding:9px 12px}
}
@media(max-width:359px){
  .fz-shell{padding-left:16px;padding-right:16px}
  .fz-logo span{display:none}
  .fz-card,.fz-detail,.fz-side-card{padding:17px}
  .fz-title{font-size:23px}
  .fz-footer-brand{gap:10px}
}
@media(prefers-reduced-motion:reduce){
  .fz-rail-link{transition:none}
}

/* Keep the screenshot's main menu visible on every page and at every width. */
.fz-header-inner{gap:28px}
.fz-nav a{padding-left:13px;padding-right:13px}
@media(max-width:1100px){
  :root{--fz-header-height:106px}
  html{scroll-padding-top:120px}
  .fz-header-inner{display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:60px 45px;height:105px;min-height:105px;gap:0}
  .fz-header-inner>.fz-logo{grid-column:1;grid-row:1;justify-self:start}
  .fz-nav{display:flex;grid-column:1 / -1;grid-row:2;gap:6px;align-self:start;min-width:0}
  .fz-nav a{min-height:35px;padding:7px 13px;font-size:12px}
}
@media(max-width:767px){
  :root{--fz-mobile-nav-height:0px}
  body{padding-bottom:env(safe-area-inset-bottom,0px)}
  .fz-app-rail{display:none}
  .fz-header-inner{padding-left:16px;padding-right:16px;gap:0 12px}
  .fz-logo b{font-size:18px}
  .fz-logo span{font-size:11px}
  .fz-nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;width:100%}
  .fz-nav a{font-size:12px;padding:7px 3px;min-width:0}
}
@media(max-width:359px){
  .fz-nav{gap:2px}
  .fz-nav a{font-size:11px}
  .fz-logo span{display:inline;font-size:10px}
  .fz-logo{gap:5px}
  .fz-logo b{font-size:16px}
  .fz-header-inner{gap:0 8px;padding-left:12px;padding-right:12px}
}