/* Shared platform shell. Does not recolor the user's generated website preview. */
:root{--platform-bg:#f8f8f4;--platform-paper:#fafaf7;--platform-ink:#1f2030;--platform-muted:#6d6e7c;--platform-line:#d8d7df;--platform-purple:#7665d7;--platform-lav:#e7e4ff}
.sidebar .nav-item,.sidebar .nav-item:hover,.sidebar .nav-item:focus,.sidebar .nav-item:visited,.back,.back:hover{text-decoration:none}
.sidebar .nav-label,.sidebar .nav-section h2{color:var(--platform-ink);font-size:17px;line-height:1.5;font-weight:700;letter-spacing:.04em}
.sidebar .nav-item:not(.active):not(.child){color:var(--platform-ink)}
body:has(.appbar){background:var(--platform-bg);color:var(--platform-ink);--panel:var(--platform-paper);--line:var(--platform-line);--ui-accent:var(--platform-purple)}
.appbar,.stagebar{background:var(--platform-paper);color:var(--platform-ink);border-color:var(--platform-line)}
.appbar .back,.appbar .tool-name b{color:var(--platform-ink)}
.appbar .tool-name small{color:var(--platform-muted)}
.appbar .tool-name>span{background:var(--platform-lav);color:var(--platform-ink)}
.page-tabs{gap:4px;align-items:center}
.page-tab,.page-tab:hover{color:var(--platform-ink);border-bottom:0;border-radius:7px;height:40px;text-decoration:none}
.page-tab.active{color:var(--platform-ink);background:var(--platform-lav);border-bottom:0;font-weight:700}
.scope-note{background:var(--platform-lav);border-color:var(--platform-line);color:var(--platform-ink)}
.scope-note span{color:var(--platform-muted)}
.quiet,.mobile-action{background:var(--platform-paper);color:var(--platform-ink);border-color:var(--platform-line)}
.appbar .primary{background:var(--platform-ink);color:white;border-color:var(--platform-ink)}
.side-panel,.stage{background:var(--platform-paper);color:var(--platform-ink)}
.modules-panel,.module-panel,.inline-settings,.theme-settings,.variant-area,.settings-block{border-color:var(--platform-line)}
.module-accordion,.theme-accordion{background:var(--platform-paper)}
.module-accordion.open,.theme-accordion.open{background:white;border-color:var(--platform-line)}
.module-trigger.active,.module-trigger:hover,.theme-trigger:hover,.module-item.active,.module-item:hover{background:var(--platform-lav);color:var(--platform-ink)}
.module-index{background:var(--platform-lav);color:var(--platform-ink)}
.panel-title small,.module-copy small,.variant-head small,.variant-card small,.stage-location small,.module-arrow,.inline-settings label,.inline-note,.setting-note,.preset-label,.setting-section-title small,.color-fields code,.field span,.module-status span{color:var(--platform-muted)}
.variant-card,.module-status{background:var(--platform-paper);border-color:var(--platform-line);color:var(--platform-ink)}
.variant-card.active{border-color:var(--platform-purple);box-shadow:0 0 0 1px var(--platform-purple) inset}
.variant-thumb{background:var(--platform-lav)}
.variant-thumb i{background:#b6b2c8}.variant-thumb i:first-child{background:var(--platform-purple)}
.inline-settings select,.field select{background:white;color:var(--platform-ink);border-color:var(--platform-line)}
.viewport-control{background:#eeedf2}.viewport{color:var(--platform-muted)}.viewport.active{background:var(--platform-lav);color:var(--platform-ink)}
.canvas-space{background-color:#efeff2;background-image:linear-gradient(#e4e3ea 1px,transparent 1px),linear-gradient(90deg,#e4e3ea 1px,transparent 1px)}
.modules-panel,.canvas-space{scrollbar-color:#aaa6bc #eeedf2}
.modules-panel::-webkit-scrollbar-track,.canvas-space::-webkit-scrollbar-track{background:#eeedf2}
.modules-panel::-webkit-scrollbar-thumb,.canvas-space::-webkit-scrollbar-thumb{background:#aaa6bc;border-color:#eeedf2}
.site-frame{box-shadow:0 12px 45px rgba(31,32,48,.12)}
.palette{border-color:var(--platform-line)}
.toast{background:var(--platform-ink);color:white}
@media(max-width:900px){.page-tabs{background:var(--platform-paper);border-color:var(--platform-line)}}

/* Persistent user-selectable platform theme; preview art stays independent. */
.platform-theme-switch{display:flex;gap:2px;flex:none;padding:3px;border:1px solid var(--platform-line);background:var(--platform-paper);border-radius:9px}
.platform-theme-switch button{border:0;border-radius:6px;background:transparent;color:var(--platform-muted);padding:7px 10px;font:500 13px PuHui,sans-serif;white-space:nowrap;cursor:pointer}
.platform-theme-switch button[aria-pressed=true]{background:var(--platform-lav);color:var(--platform-ink)}
.platform-theme-switch button:focus-visible{outline:2px solid var(--platform-purple);outline-offset:2px}
html[data-platform-theme=dark]{--platform-bg:#15151c;--platform-paper:#1f202a;--platform-ink:#f2efff;--platform-muted:#b8b4ca;--platform-line:#41404e;--platform-purple:#b2a1ff;--platform-lav:#38304e;--cream:#15151c;--paper:#1f202a;--ink:#f2efff;--text:#eeeaf7;--muted:#b8b4ca;--line:#41404e;--lav:#38304e;--lavender:#38304e;--purple:#b2a1ff}
html[data-platform-theme=dark] body{background:var(--platform-bg);color:var(--platform-ink)}
html[data-platform-theme=dark] :is(.sidebar,.topbar){background:var(--platform-paper);color:var(--platform-ink);border-color:var(--platform-line)}
html[data-platform-theme=dark] .sidebar .nav-item:not(.active){color:var(--platform-muted)}
html[data-platform-theme=dark] :is(.nav-item.active,.login-btn,.primary,.wide-button,.filter.active,.modal-primary){background:#b2a1ff;color:#181420;border-color:#b2a1ff}
html[data-platform-theme=dark] :is(.search,.asset,.asset .thumb,.style-card,.control-section input,.control-section textarea,.control-section select,.identity-fields,.modal-card,.principle,.principle-grid>div,.modal){background:var(--platform-paper);color:var(--platform-ink);border-color:var(--platform-line)}
html[data-platform-theme=dark] :is(.asset h3,.asset p,.asset .meta,.asset-bottom,.asset .thumb-title,.brand strong,.section-head p,.text-link,.side-note,.style-card small,.hint,.export-section p,.toggle-row small,.stage-bar small){color:var(--platform-ink)}
html[data-platform-theme=dark] .comic-thumb .thumb-title{background:var(--platform-paper)}
html[data-platform-theme=dark] :is(.style-panel,.inspector,.stage-bar,.stage-foot){background:var(--platform-paper);border-color:var(--platform-line);color:var(--platform-ink)}
html[data-platform-theme=dark] .preview-stage{background:var(--platform-bg)}
html[data-platform-theme=dark] :is(.filter,.ghost,.icon-btn,.mobile-menu,.user-chip){color:var(--platform-ink);background:var(--platform-paper);border-color:var(--platform-line)}
html[data-platform-theme=dark] .module-accordion.open,html[data-platform-theme=dark] .theme-accordion.open{background:#242430}
html[data-platform-theme=dark] :is(.inline-settings select,.field select){background:#292835;color:var(--platform-ink)}
html[data-platform-theme=dark] .canvas-space{background-color:#15151c;background-image:linear-gradient(#20202b 1px,transparent 1px),linear-gradient(90deg,#20202b 1px,transparent 1px)}
html[data-platform-theme=dark] .variant-thumb{background:#252330}
html[data-platform-theme=dark] .variant-thumb i{background:#646071}
html[data-platform-theme=dark] .variant-thumb i:first-child{background:#b2a1ff}
html[data-platform-theme=dark] .viewport-control{background:#292835}
html[data-platform-theme=dark] :is(.modules-panel,.canvas-space){scrollbar-color:#716981 #252330}
html[data-platform-theme=dark] :is(.modules-panel,.canvas-space)::-webkit-scrollbar-track{background:#252330}
html[data-platform-theme=dark] :is(.modules-panel,.canvas-space)::-webkit-scrollbar-thumb{background:#716981;border-color:#252330}

/* v0.8 unified platform shell: shared visual language, tool workflows stay independent. */
:root{
  --platform-topbar-h:76px;
  --platform-control-h:40px;
  --platform-radius-sm:7px;
  --platform-radius-md:10px;
  --platform-space-1:8px;
  --platform-space-2:12px;
  --platform-space-3:16px;
  --platform-shadow:0 14px 38px rgba(31,32,48,.10)
}

/* Shared shell typography and navigation hierarchy */
:is(.platform-home,.platform-builder,.platform-comic){font-family:PuHui,"Microsoft YaHei",sans-serif;background:var(--platform-bg);color:var(--platform-ink)}
:is(.platform-home,.platform-comic) .sidebar{width:236px;padding:26px 18px 22px;background:color-mix(in srgb,var(--platform-paper) 96%,transparent);border-color:var(--platform-line)}
:is(.platform-home,.platform-comic) .brand{gap:12px;padding:0 10px 30px;color:var(--platform-ink)}
:is(.platform-home,.platform-comic) .brand strong{font-size:18px;font-weight:700;color:var(--platform-ink)}
:is(.platform-home,.platform-comic) .brand small{font-size:12px;color:var(--platform-muted)}
:is(.platform-home,.platform-comic) .nav-section{margin:3px 0 18px}
:is(.platform-home,.platform-comic) .nav-section>h2,
.platform-home .nav-label{padding:0 11px;margin:0 0 8px;font-size:17px;line-height:1.35;font-weight:700;letter-spacing:0;text-transform:none;color:var(--platform-ink)}
:is(.platform-home,.platform-comic) .nav-item{height:42px;padding:0 12px;border-radius:var(--platform-radius-md);font-size:15px;font-weight:400;color:var(--platform-muted)}
:is(.platform-home,.platform-comic) .nav-item.child{padding-left:25px;color:var(--platform-muted)}
:is(.platform-home,.platform-comic) .nav-item:hover{background:var(--platform-lav);color:var(--platform-ink)}
:is(.platform-home,.platform-comic) .nav-item.active{background:var(--platform-ink);color:white;font-weight:700}
:is(.platform-home,.platform-comic) .side-note{font-size:13px;line-height:1.65;color:var(--platform-muted)}
:is(.platform-home,.platform-comic) .side-note b{font-size:14px;color:var(--platform-ink)}

/* Shared top bars and tool identity */
:is(.platform-home,.platform-comic) .topbar,.platform-builder .appbar{height:var(--platform-topbar-h);background:color-mix(in srgb,var(--platform-paper) 94%,transparent);border-color:var(--platform-line);backdrop-filter:blur(16px)}
.platform-home .topbar{padding:0 34px}
.platform-comic .topbar{padding:0 20px;gap:20px}
.platform-builder .appbar{padding:0 20px;gap:20px}
.platform-comic .tool-title{display:grid;grid-template-columns:36px auto;grid-template-rows:auto auto;column-gap:11px;align-items:center}
.platform-comic .tool-title:before{content:'C';grid-row:1/3;width:36px;height:36px;border-radius:8px;background:var(--platform-lav);color:var(--platform-ink);display:grid;place-items:center;font-size:18px;font-weight:700}
.platform-comic .tool-title span{font-size:12px;line-height:1.2;letter-spacing:.06em;color:var(--platform-muted)}
.platform-comic .tool-title strong{font-size:17px;line-height:1.25;color:var(--platform-ink)}
:is(.platform-builder,.platform-comic) .tool-name{display:flex;align-items:center;gap:11px;min-width:214px}
:is(.platform-builder,.platform-comic) .tool-name>span{width:36px;height:36px;border-radius:8px;background:var(--platform-lav);color:var(--platform-ink);display:grid;place-items:center;font-size:18px;font-weight:700}
:is(.platform-builder,.platform-comic) .tool-name b,:is(.platform-builder,.platform-comic) .tool-name small{display:block}
:is(.platform-builder,.platform-comic) .tool-name b{font-size:17px;color:var(--platform-ink)}
:is(.platform-builder,.platform-comic) .tool-name small{margin-top:3px;font-size:13px;color:var(--platform-muted)}
:is(.platform-builder,.platform-comic) .back{font-size:14px;color:var(--platform-ink);text-decoration:none;white-space:nowrap}

/* One control language for all platform chrome */
:is(.platform-home,.platform-builder,.platform-comic) .platform-theme-switch{height:40px;padding:3px;border-radius:9px}
:is(.platform-home,.platform-builder,.platform-comic) .platform-theme-switch button{font-size:13px;font-weight:500;padding:0 10px}
:is(.platform-builder,.platform-comic) :is(.quiet,.ghost,.primary,.mobile-action),
.platform-home :is(.login-btn,.filter){min-height:var(--platform-control-h);border-radius:8px;font-size:14px;font-weight:600;padding-inline:14px}
:is(.platform-builder,.platform-comic) :is(.quiet,.ghost){background:var(--platform-paper);color:var(--platform-ink);border:1px solid var(--platform-line)}
:is(.platform-builder,.platform-comic) .primary{background:var(--platform-ink);color:white;border:1px solid var(--platform-ink)}
:is(.platform-builder,.platform-comic) :is(.quiet,.ghost,.primary,.mobile-action):hover,
.platform-home :is(.login-btn,.filter):hover{transform:translateY(-1px);box-shadow:var(--platform-shadow)}
:is(.platform-builder,.platform-comic) button:focus-visible,
.platform-home button:focus-visible{outline:2px solid var(--platform-purple);outline-offset:2px}

/* Editor panels use the same hierarchy and surfaces */
.platform-builder .side-panel,.platform-comic .style-panel{background:var(--platform-paper);border-color:var(--platform-line)}
.platform-builder .panel-title,.platform-comic .flow-intro{padding-top:20px}
.platform-builder .panel-title h2,.platform-comic .flow-intro h1{font-size:21px;line-height:1.25;font-weight:700;color:var(--platform-ink)}
.platform-builder .panel-title small,.platform-comic .flow-intro p{font-size:13px;line-height:1.6;color:var(--platform-muted)}
.platform-comic .flow-step{border:1px solid var(--platform-line);border-radius:10px;margin:0 0 12px;padding:0;overflow:hidden;background:var(--platform-paper)}
.platform-comic .flow-step summary{padding:14px 12px;align-items:flex-start}
.platform-comic .flow-step[open] summary{background:var(--platform-lav)}
.platform-comic .flow-step summary b{font-size:17px;line-height:1.35;color:var(--platform-ink)}
.platform-comic .flow-step summary small{font-size:13px;line-height:1.5;color:var(--platform-muted)}
.platform-comic .step-number{font-size:12px;padding-top:4px}
.platform-comic .step-body{padding:14px 12px 16px;border-top:1px solid var(--platform-line)}
.platform-comic .role-choices label{border-radius:7px;background:var(--platform-paper)}
.platform-comic .role-choices b{font-size:14px}.platform-comic .role-choices small{font-size:12px}
.platform-comic .style-card{border-radius:7px;background:var(--platform-paper);border-color:var(--platform-line)}
.platform-comic .style-card b{font-size:12px}.platform-comic .style-card small{font-size:11px}

/* Shared fields and secondary controls */
.platform-comic :is(input[type=text],input:not([type]),textarea,select),
.platform-builder :is(.module-name-field input,.inline-settings select){border:1px solid var(--platform-line);border-radius:7px;background:var(--platform-paper);color:var(--platform-ink);font-size:13px;padding:10px 11px}
.platform-comic label,.platform-builder .module-name-field{font-size:13px;color:var(--platform-ink)}
.platform-comic .wide-button,.platform-comic .preview-tools button{min-height:40px;border-radius:7px;font-size:13px;font-weight:600}
.platform-comic .wide-button{background:var(--platform-ink);color:white}
.platform-comic .wide-button.secondary{background:var(--platform-lav);color:var(--platform-ink)}
.platform-comic .preview-tools button{padding:0 13px;background:var(--platform-paper);color:var(--platform-ink);border:1px solid var(--platform-line)}

/* Both editors present the canvas as a workspace, without recoloring the work itself */
.platform-builder .stagebar,.platform-comic .stage-bar{height:48px;min-height:48px;padding:0 18px;background:var(--platform-paper);border-color:var(--platform-line);font-size:13px;color:var(--platform-ink)}
.platform-builder .stage-location small,.platform-comic .stage-bar small{font-size:12px;color:var(--platform-muted)}
.platform-comic .preview-stage{background:var(--platform-bg)}
.platform-comic .canvas-wrap{background-color:#efeff2;background-image:linear-gradient(#e4e3ea 1px,transparent 1px),linear-gradient(90deg,#e4e3ea 1px,transparent 1px);background-size:24px 24px}
.platform-comic .preview-tools,.platform-comic .stage-foot{background:var(--platform-paper);border-color:var(--platform-line)}
.platform-comic .comic-canvas{box-shadow:0 12px 45px rgba(31,32,48,.12);color:#1f2030}

/* Home page uses the same control radius and hierarchy */
.platform-home .search{border-radius:10px}.platform-home .login-btn{border-radius:8px}
.platform-home .filter{border-radius:8px}.platform-home .filter.active{background:var(--platform-ink);color:white}

html[data-platform-theme=dark] .platform-comic .canvas-wrap{background-color:#15151c;background-image:linear-gradient(#20202b 1px,transparent 1px),linear-gradient(90deg,#20202b 1px,transparent 1px)}
html[data-platform-theme=dark] .platform-comic .flow-step{background:var(--platform-paper)}
html[data-platform-theme=dark] .platform-comic .flow-step[open] summary{background:var(--platform-lav)}

@media(max-width:780px){
  :root{--platform-topbar-h:66px}
  .platform-home .topbar,.platform-comic .topbar{padding:0 14px}
  .platform-builder .appbar,.platform-comic .topbar{padding:0 9px;gap:7px}
  :is(.platform-builder,.platform-comic) .back{font-size:0}
  :is(.platform-builder,.platform-comic) .back:after{content:'←';font-size:20px}
  :is(.platform-builder,.platform-comic) .tool-name{min-width:0;margin-right:auto;gap:7px}
  :is(.platform-builder,.platform-comic) .tool-name>span{width:32px;height:32px;font-size:15px}
  :is(.platform-builder,.platform-comic) .tool-name b{font-size:13px;white-space:nowrap}
  :is(.platform-builder,.platform-comic) .tool-name small{display:none}
  .platform-comic .tool-title{grid-template-columns:32px auto;column-gap:8px}
  .platform-comic .tool-title:before{width:32px;height:32px;font-size:15px}
  .platform-comic .tool-title span{display:none}
  .platform-comic .tool-title strong{font-size:13px;white-space:nowrap}
  :is(.platform-home,.platform-builder,.platform-comic) .platform-theme-switch button{width:35px;padding:0;font-size:0}
  :is(.platform-home,.platform-builder,.platform-comic) [data-theme-choice=light]:after{content:'☀';font-size:14px}
  :is(.platform-home,.platform-builder,.platform-comic) [data-theme-choice=dark]:after{content:'☾';font-size:14px}
  :is(.platform-home,.platform-comic) .sidebar{padding-top:22px}
}
/* Comic artwork is not platform chrome. */
.comic-canvas{--ink:#1f2030}
@media(max-width:780px){.platform-theme-switch button{padding:7px 6px;font-size:12px}.topbar{gap:7px}.appbar .tool-name{min-width:0}.appbar .platform-theme-switch{margin-left:auto}.appbar .tool-name small{display:none}.topbar .platform-theme-switch{margin-left:auto}}
html[data-platform-theme=dark] .asset .pill{background:var(--platform-lav);color:var(--platform-ink)}

/* CTRL-01 opt-in shared tool shell. No changes to other tools until contracted. */
body[data-platform-tool]{--platform-purple:#6e43af;--platform-lav:#e9e3f4;--platform-ink:#282132;--platform-muted:#6d6277;--platform-line:rgba(76,49,105,.18);--platform-paper:rgba(255,253,251,.82);--platform-bg:#eee8f5;--purple:var(--platform-purple);--muted:var(--platform-muted);--ink:var(--platform-ink);--line:var(--platform-line);--paper:var(--platform-paper);--lav:var(--platform-lav);margin:0;padding:64px 0 0;background:radial-gradient(ellipse at 5% 18%,#ccb7e788,transparent 50%),radial-gradient(ellipse at 80% 90%,#e8bbbc66,transparent 55%),linear-gradient(125deg,#e9e7f3,#f5f0ed 56%,#e5dbf1);background-attachment:fixed;color:var(--platform-ink);font-family:PuHui,"Microsoft YaHei",sans-serif}
body[data-platform-tool] a{color:inherit;text-decoration:none}
body[data-platform-tool] :is(button,input,textarea,select){font-family:inherit}
body[data-platform-tool] :is(a,button,input,textarea,select,summary):focus-visible{outline:2px solid var(--platform-purple);outline-offset:3px}
body[data-platform-tool] .platform-tool-header{position:fixed;inset:0 0 auto;z-index:100;height:64px;padding:0 28px;display:flex;flex-wrap:nowrap;gap:22px;border:0;border-bottom:1px solid var(--platform-line);background:var(--platform-paper);backdrop-filter:blur(12px)}
body[data-platform-tool] .platform-tool-header .back{font-size:16px;white-space:nowrap;font-weight:500;margin:0;padding:10px 0}
body[data-platform-tool] .platform-tool-header .platform-tool-brand{display:inline-flex;align-items:center;gap:8px;font-size:14px;padding:0;white-space:nowrap}
body[data-platform-tool] .platform-tool-header .platform-tool-brand img{display:block;width:108px;height:auto;aspect-ratio:2028/594;object-fit:contain;filter:drop-shadow(0 2px 4px rgba(172,135,213,.26))}
body[data-platform-tool] .platform-tool-header .platform-tool-brand span{font-weight:500}
body[data-platform-tool] .platform-tool-header .back:after{content:none}
body[data-platform-tool] .tool-name{display:none;min-width:0}
body[data-platform-tool] .platform-tool-nav{display:flex;align-items:center;gap:4px;margin:auto}
body[data-platform-tool] .platform-tool-nav>a{font-size:14px;padding:11px 15px;border-radius:7px;white-space:nowrap}
body[data-platform-tool] .platform-tool-nav>a[aria-current=page]{color:var(--platform-purple);background:var(--platform-lav);font-weight:700}
body[data-platform-tool] .platform-tool-nav>a:hover{background:var(--platform-lav)}
body[data-platform-tool] .platform-theme-switch{margin:0 0 0 14px!important;padding:2px;background:transparent;border:1px solid var(--platform-line)}
body[data-platform-tool] .platform-theme-switch button{width:auto;min-height:34px;padding:5px 8px;font-size:12px;background:transparent;color:var(--platform-muted);border:0}
body[data-platform-tool] .platform-theme-switch button:after{content:none}
body[data-platform-tool] .platform-theme-switch button[aria-pressed=true]{background:var(--platform-lav);color:var(--platform-purple)}
body[data-platform-tool] .platform-tool-avatar{--avatar-a:#6e43af;--avatar-b:#9f84eb;--avatar-c:#ffb49e;--avatar-d:#f3d77a;flex:0 0 36px;width:36px;height:36px;border-radius:10px;background:radial-gradient(circle at 18% 18%,var(--avatar-a) 0 16%,transparent 47%),radial-gradient(circle at 82% 22%,var(--avatar-b) 0 18%,transparent 50%),linear-gradient(135deg,var(--avatar-c),var(--avatar-d));box-shadow:inset 0 0 0 1px #fff6}
body[data-platform-tool] .platform-tool-menu{display:none;border:1px solid var(--platform-line);background:transparent;color:var(--platform-ink);font-size:12px;min-height:40px;padding:0 10px;border-radius:7px}
html[data-platform-theme=dark] body[data-platform-tool]{--platform-paper:rgba(34,29,44,.93);--platform-ink:#eee8f7;--platform-muted:#b6adc3;--platform-line:rgba(223,200,255,.2);--platform-purple:#c9a7fa;--platform-lav:#463654;--platform-bg:#201b29;background:radial-gradient(ellipse at 5% 18%,#51346166,transparent 55%),radial-gradient(ellipse at 90% 90%,#583c4266,transparent 60%),linear-gradient(125deg,#211c2d,#251e2c 56%,#302238);background-attachment:fixed}
@media(max-width:1100px){body[data-platform-tool] .platform-tool-header{gap:14px;padding:0 18px}body[data-platform-tool] .platform-tool-nav>a{padding:11px 9px}}
@media(max-width:1100px){body[data-platform-tool] .platform-tool-header .platform-tool-brand img{width:82px}body[data-platform-tool] .platform-tool-header .platform-tool-brand span{font-size:12px}}
@media(max-width:900px){
 body[data-platform-tool]{padding-top:60px}
 body[data-platform-tool] .platform-tool-header{height:60px;gap:12px;padding:0 14px}
 body[data-platform-tool] .platform-tool-header .back{font-size:14px}
 body[data-platform-tool] .tool-name{display:block;margin-right:auto;border-left:1px solid var(--platform-line);padding-left:12px;white-space:nowrap}
 body[data-platform-tool] .tool-name b{font-size:13px}
 body[data-platform-tool] .platform-tool-menu{display:block}
 body[data-platform-tool] .platform-tool-avatar{flex-basis:32px;width:32px;height:32px}
 body[data-platform-tool] .platform-tool-nav{display:none;position:absolute;left:12px;right:12px;top:60px;margin:0;padding:12px;flex-wrap:wrap;border:1px solid var(--platform-line);border-radius:10px;background:var(--platform-paper);box-shadow:0 16px 32px #30203822}
 body[data-platform-tool] .platform-tool-nav.is-open{display:flex}
 body[data-platform-tool] .platform-tool-nav>a{min-height:44px;padding:12px}
 body[data-platform-tool] [data-platform-theme-host]{flex-basis:100%;border-top:1px solid var(--platform-line);padding-top:8px;margin-top:4px}
 body[data-platform-tool] .platform-theme-switch{display:inline-flex;margin:0!important}
 body[data-platform-tool] .platform-theme-switch button{min-height:40px;padding:8px 16px;font-size:13px}
}

/* CTRL-01 palette account boundary. Workspace colors and module layout unchanged. */
.platform-palette .palette-account{display:flex;align-items:center;gap:10px;font-size:12px;white-space:nowrap}
.platform-palette .palette-account a{color:inherit;text-decoration:none}
.platform-palette .palette-avatar{width:30px;height:30px;border-radius:10px;background:conic-gradient(from 40deg,var(--avatar-a,#6e43af),var(--avatar-b,#aa8df0),var(--avatar-c,#f3a6a0),var(--avatar-d,#f0d77a),var(--avatar-a,#6e43af));border:1px solid color-mix(in srgb,currentColor 16%,transparent)}
.platform-login-guard{width:min(480px,calc(100% - 32px));padding:28px 26px;background:#f7f3fb;color:#30213f;border:1px solid #bba4d3;border-radius:10px;box-shadow:0 18px 50px rgba(67,42,92,.08);font:14px/1.7 PuHui,"Microsoft YaHei",sans-serif;box-sizing:border-box}
.platform-login-guard>p{margin:0 0 24px;max-width:40em}
.platform-login-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px 18px}
.platform-login-button{display:inline-flex;align-items:center;justify-content:center;min-width:88px;min-height:44px;padding:9px 18px;background:#6e43af;color:#fff!important;border:1px solid #6e43af;border-radius:7px;text-decoration:none!important;font:inherit;font-weight:500;box-sizing:border-box}
.platform-login-hint{color:#4b3a5f;white-space:nowrap}
.platform-login-retry{min-height:44px;padding:9px 16px;background:#fff;color:#30213f;border:1px solid #9f8db3;border-radius:7px;cursor:pointer;font:inherit}
.platform-login-secondary{color:#4b3a5f!important;text-underline-offset:3px}
.platform-login-guard[data-mode="login"] .platform-login-retry,.platform-login-guard[data-mode="login"] .platform-login-secondary{display:none}
.platform-login-guard[data-mode="retry"] .platform-login-hint{display:none}
.platform-palette .palette-account-guard{position:fixed;z-index:300;left:50%;top:45%;transform:translate(-50%,-50%);margin:0;font-size:14px;line-height:1.7}
.platform-palette .palette-legacy button{font:inherit;padding:7px 12px;border:1px solid #97939f;border-radius:6px;cursor:pointer}
.platform-palette.palette-account-locked .palette-workspace,.platform-palette.palette-account-locked .top-actions{visibility:hidden}
.platform-palette .palette-account-guard[hidden],.platform-palette .palette-legacy[hidden],.platform-palette .palette-account [hidden]{display:none!important}
.platform-palette .palette-legacy{font-size:12px;line-height:1.65;margin:12px 0;padding:12px;border:1px solid #96929d;border-radius:8px}
.platform-palette .palette-legacy label{display:flex;gap:8px;align-items:center;margin:7px 0;overflow-wrap:anywhere}
.platform-palette .palette-legacy input{width:16px;height:16px;flex:none}
@media(max-width:700px){.platform-login-guard{padding:24px 20px}.platform-login-guard>p{margin-bottom:20px}.platform-login-actions{gap:12px 16px}.platform-palette .palette-account{gap:6px}.platform-palette .palette-account .palette-avatar{width:25px;height:25px}.platform-palette .tool-name small{display:none}.platform-palette .tool-name{min-width:0}}