/* OS UI System V1 captured at 34d5c64; approved candidate provenance is recorded in TEACHER_SERVICE_B4_WEB_RECEIPT.md. */
:root{
 --canvas:#f5f6f3;--surface:#ffffff;--surface-subtle:#f8f9f7;--surface-strong:#eef1ed;
 --text:#18231f;--muted:#62716a;--border:#dce3de;--border-strong:#bdc8c0;
 --accent:#e75a1a;--accent-strong:#b93f0b;--accent-soft:#fff0e8;
 --success:#087b68;--warning:#b75113;--danger:#b63b43;--info:#2474a6;
 --radius:10px;--control-radius:7px;--focus:#b93f0b;
 --control-surface:var(--surface);--control-filter:none;--dialog-surface:var(--surface);
 --control-depth:inset 0 1px 0 #ffffff,inset 0 -1px 0 #ffffff80,0 2px 8px #18231f0d;
 --control-hover:#f3f6f3;--disabled-surface:#e9eeea;--disabled-text:#526159;
 --scroll-thumb:#84908a;--scroll-track:#f5f6f3;--scroll-hover:#62716a;
 --z-nav:400;--z-toast:900;
 font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
 font-synthesis:none;text-rendering:optimizeLegibility;
}
*{box-sizing:border-box;scrollbar-color:var(--scroll-thumb) var(--scroll-track);scrollbar-width:thin}
*::-webkit-scrollbar{width:10px;height:10px}
*::-webkit-scrollbar-track{background:var(--scroll-track)}
*::-webkit-scrollbar-thumb{background:var(--scroll-thumb);border:2px solid var(--scroll-track);border-radius:7px}
*::-webkit-scrollbar-thumb:hover{background:var(--scroll-hover)}
*::-webkit-scrollbar-thumb:active{background:var(--text)}
html,body{margin:0;min-width:0;min-height:100%;background:var(--canvas);color:var(--text)}
body{font-size:14px;line-height:1.55}
button,input,select,textarea{font:inherit}button,a,summary{touch-action:manipulation}
button,summary{cursor:pointer}a{color:inherit;text-decoration:none}p{line-height:1.75}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--focus);outline-offset:3px}
.lite-shell{min-height:100vh;display:grid;grid-template-columns:252px minmax(0,1fr);background:var(--canvas);color:var(--text)}
.lite-sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:30px;padding:24px 16px 18px;border-right:1px solid var(--border);background:var(--surface)}
.lite-brand{display:flex;align-items:center;gap:12px;padding:4px 8px 12px;border-bottom:1px solid var(--border)}
.lite-brand>span{display:grid;place-items:center;width:38px;height:38px;flex:none;border-radius:9px;background:var(--accent);color:#fff;font-weight:700}
.lite-brand strong{display:block;font-size:16px;font-weight:600;letter-spacing:-.03em}
.lite-brand small{display:block;margin-top:2px;color:var(--muted);font-size:12px}
.lite-sidebar nav{display:grid;gap:6px}.lite-sidebar nav a{display:flex;align-items:center;min-height:42px;padding:0 12px;border-radius:8px;color:var(--muted);font-weight:600}
.lite-sidebar nav a:hover{background:var(--surface-subtle);color:var(--text)}
.lite-sidebar nav a.active{background:var(--accent-soft);color:var(--accent-strong);box-shadow:inset 3px 0 var(--accent)}
.lite-disclosure{margin-top:auto;padding:12px 10px;border-top:1px solid var(--border);color:var(--muted);font-size:12px;line-height:1.65}
.sidebar-account{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px}
.lite-main{min-width:0;width:100%;max-width:1440px;padding:32px clamp(26px,4vw,64px) 72px}
.lite-main>header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:30px;padding-bottom:18px;border-bottom:1px solid var(--border)}
.lite-main h1{margin:0;font-size:32px;font-weight:650;letter-spacing:-.045em;line-height:1.25}
.lite-main h2{margin:0 0 12px;font-size:19px;font-weight:650;letter-spacing:-.02em}
.lite-main h3{margin:0 0 10px;font-size:16px;font-weight:600}
.toolbar,.button-row,.version-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.toolbar{margin-bottom:24px}.button-row{margin:12px 0}.version-line{font-size:12px;color:var(--muted)}
.section-title{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:24px 0 16px}.section-title p{margin:5px 0;color:var(--muted);font-size:12px}
.muted,.header-meta{color:var(--muted);font-size:12px}.search{display:flex;margin-left:auto;min-width:220px}.search input{width:100%}
.tabs,.config-tabs{display:flex;gap:8px;flex-wrap:wrap}.config-tabs{margin:24px 0 16px;padding-bottom:14px;border-bottom:1px solid var(--border)}
:where(.btn,#close-modal,.tabs button,.tabs a,.config-tabs button,input:not([type=checkbox]):not([type=radio]):not([type=range]),select,textarea){
 background:var(--control-surface);color:var(--text);border:1px solid transparent;border-radius:var(--control-radius);
 box-shadow:var(--control-depth);backdrop-filter:var(--control-filter);-webkit-backdrop-filter:var(--control-filter);
}
.btn,#close-modal,.tabs button,.tabs a,.config-tabs button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:42px;padding:9px 15px;font-size:13px;font-weight:600;white-space:normal}
.btn.primary{background:var(--accent-strong);color:#fff;box-shadow:inset 0 1px 0 #ffffff50,0 2px 8px #18231f12}
.btn.danger,.danger-text{color:var(--danger)}
:where(.btn:not(:disabled):hover,#close-modal:not(:disabled):hover,.tabs a:hover,.tabs button:not(:disabled):hover,.config-tabs button:not(:disabled):hover){background:var(--control-hover);box-shadow:inset 0 1px 0 #fff,0 3px 12px #18231f12}
.btn.primary:where(:not(:disabled):hover){background:#a53709;color:#fff}
:where(.btn:not(:disabled):active,#close-modal:not(:disabled):active,.tabs a:active,.tabs button:not(:disabled):active,.config-tabs button:not(:disabled):active){box-shadow:inset 0 2px 4px #18231f18}
.tabs button[aria-pressed=true],.tabs .active,.config-tabs button[aria-pressed=true],.config-tabs button[aria-selected=true]{background:var(--accent-soft);color:var(--accent-strong);box-shadow:var(--control-depth),inset 0 -2px 0 var(--accent)}
[aria-busy=true]{cursor:progress}
:is(.btn,#close-modal,button,input,select,textarea):disabled{background:var(--disabled-surface);color:var(--disabled-text);opacity:1;cursor:not-allowed;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}
input:not([type=checkbox]):not([type=radio]):not([type=range]),select,textarea{max-width:100%;min-width:0;padding:11px 12px;border-color:var(--border-strong)}
input[type=checkbox],input[type=radio],input[type=range]{accent-color:var(--accent-strong)}
textarea{line-height:1.75;resize:vertical;min-height:110px}
.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.fields label{display:grid;gap:8px;font-size:12px;color:var(--muted)}
.fields .wide{grid-column:1/-1}.fields .check-field{display:flex;align-items:center;gap:10px;min-height:44px}.check-field input{width:20px;height:20px}
.form-section{margin-top:24px;padding-top:22px;border-top:1px solid var(--border)}
.split,.config-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px;align-items:start}
.panel{min-width:0;padding:22px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:0 1px 2px #18231f05}
.panel+.panel{margin-top:18px}.panel p{color:var(--muted);font-size:13px;overflow-wrap:anywhere}
.notice,.callout{padding:16px 18px;border-radius:8px;background:var(--surface-subtle);color:var(--muted);font-size:12px;line-height:1.8;margin:16px 0}
.notice.warn{background:#fff3df;color:#955321}.notice[role=alert]{border-left:3px solid var(--warning)}
.callout ul{padding-left:20px}.empty{padding:36px;text-align:center;color:var(--muted);font-size:13px}
.avatar{display:grid;place-items:center;flex:none;width:38px;height:38px;border-radius:8px;background:var(--surface-strong);color:var(--accent-strong);font-weight:600}
.pill{display:inline-block;padding:4px 8px;border-radius:6px;background:var(--surface-subtle);color:var(--muted);font-size:11px;white-space:nowrap}
.pill.ok{background:#e5f5f0;color:#246c56}.pill.warn{background:#fff3df;color:#955321}.pill.purple{background:var(--accent-soft);color:var(--accent-strong)}
.service-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.service-card{min-width:0;display:block;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);overflow:hidden}
.service-card:hover{box-shadow:0 4px 16px #18231f0d;border-color:var(--border-strong)}
.service-grid .cover{position:relative;aspect-ratio:1/1;background:var(--surface-strong);padding:16px;overflow:hidden}
.cover-mark{display:grid;place-items:center;height:100%;font-size:64px;font-weight:500;color:var(--muted)}
.cover .pill{position:absolute;left:14px;bottom:14px;background:var(--surface)}
.card-body{padding:16px}.card-body h3{margin:0 0 6px;font-size:16px;line-height:1.55;overflow-wrap:anywhere}.card-body p{margin:0;font-size:13px;line-height:1.65;color:var(--muted)}
.row-list{display:grid}.row{display:flex;gap:14px;align-items:center;padding:17px 0;border-bottom:1px solid var(--border);min-width:0}.row:last-child{border-bottom:0}
.row-main{flex:1;min-width:0}.row-main strong{font-size:13px}.row-main p{margin:5px 0 0;font-size:12px;color:var(--muted)}.row small{color:var(--muted);font-size:11px}
a.row:hover{background:var(--surface-subtle)}
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:0 0 24px}
.facts article{padding:20px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border)}.facts small,.facts p{color:var(--muted);font-size:12px}.facts strong{display:block;font-size:24px;margin:10px 0 7px}.facts p{margin:0}
.table-wrap{overflow:auto;scrollbar-gutter:stable}.data-table{width:100%;border-collapse:collapse;font-size:12px;text-align:left}.data-table th{padding:13px 12px;background:var(--surface-subtle);color:var(--muted);font-weight:500;white-space:nowrap}.data-table td{padding:15px 12px;border-bottom:1px solid var(--border);vertical-align:top}.data-table small{display:block;color:var(--muted);margin-top:4px}.data-table .btn{min-height:34px;padding:6px 10px;font-size:12px}
.kb-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;flex:1;min-width:0}.kb-options label{display:grid;gap:6px;font-size:12px;color:var(--muted)}.kb-options select[multiple]{min-height:84px}.config-layout .row{flex-wrap:wrap}.config-layout aside .cover{height:120px;background:var(--surface-strong)}
.layout-samples{display:flex;gap:18px}.layout-samples>div{display:grid;gap:5px;width:94px}.sample-grid{grid-template-columns:1fr 1fr}.layout-samples i{display:block;min-height:26px;border:1px solid var(--border);border-radius:4px;background:var(--surface)}
.detail-title{display:flex;align-items:center;gap:16px;margin-bottom:22px}.detail-title h2{margin-bottom:5px}.detail-title p{margin:0;color:var(--muted);font-size:12px}
.legal-copy{font-size:13px;line-height:1.9;color:var(--muted)}
.chat-layout{display:grid;grid-template-columns:minmax(0,1fr)}.chat-pane{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);overflow:hidden}
.chat-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:18px 22px;border-bottom:1px solid var(--border);font-size:14px}.chat-head .muted{font-size:12px}
.messages{padding:28px;min-height:340px;max-height:60vh;overflow:auto;scrollbar-gutter:stable}
.message{display:flex;align-items:flex-start;gap:12px;margin-bottom:24px;font-size:14px;line-height:1.85}.message:last-child{margin-bottom:0}.message .avatar{width:32px;height:32px;font-size:13px}
.message-body{min-width:0;max-width:82%}.message-author{display:block;margin-bottom:6px;color:var(--muted);font-size:11px}
.message-text{padding:13px 17px;white-space:pre-wrap;overflow-wrap:anywhere;background:var(--surface-subtle);border-radius:2px 10px 10px 10px}
.message.user{flex-direction:row-reverse}.message.user .message-author{text-align:right}.message.user .message-text{background:var(--accent-soft);border-radius:10px 2px 10px 10px}
.message-citation,.message-menu{margin-top:9px;color:var(--muted);font-size:12px}.message-citation summary,.message-menu summary{min-height:32px;width:fit-content;cursor:pointer}.message-citation p{margin:8px 0 0;max-width:52ch;font-size:12px}.message-menu .btn{margin-top:6px}
summary:hover{color:var(--accent-strong)}
.message-file{display:flex;gap:12px;align-items:center;margin-top:12px;padding:12px 14px;max-width:100%;border:1px solid var(--border);border-radius:8px;background:var(--surface)}.message-file strong{font-size:12px;overflow-wrap:anywhere}.message-file small{display:block;color:var(--muted);font-size:11px}.file-symbol{font-size:20px;color:var(--muted)}
.composer{padding:18px 22px;border-top:1px solid var(--border)}.composer textarea{width:100%;min-height:100px;background:var(--surface-subtle)}.composer-foot{display:flex;justify-content:flex-end;align-items:center;gap:10px;margin-top:10px}
#chat-status{min-height:1.75em;margin:6px 0 0}#feedback-error{min-height:1.75em}
.mobile-tabs{display:none}
dialog{max-width:min(580px,calc(100vw - 32px));max-height:calc(100dvh - 32px);width:100%;overflow:auto;scrollbar-gutter:stable;padding:26px;border:1px solid var(--border);border-radius:var(--radius);color:var(--text);background:var(--dialog-surface);box-shadow:0 18px 48px #18231f26;backdrop-filter:var(--control-filter);-webkit-backdrop-filter:var(--control-filter)}
dialog::backdrop{background:#18231f50}dialog h2{margin-top:0;font-size:20px}dialog p{font-size:13px;color:var(--muted);line-height:1.75}dialog label{display:block;margin:14px 0;font-size:12px}dialog input:not([type=checkbox]),dialog select,dialog textarea{width:100%;margin-top:6px}#close-modal{margin-top:16px}
#toast{position:fixed;z-index:var(--z-toast);bottom:24px;left:50%;transform:translateX(-50%);max-width:min(90%,600px);padding:12px 18px;border-radius:8px;background:var(--text);color:var(--surface);font-size:13px;display:none}#toast.visible{display:block}
@supports ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){:root{--control-surface:rgba(255,255,255,.84);--dialog-surface:rgba(255,255,255,.97);--control-filter:blur(10px)}}
.mini-preview,.mini-dialog{--control-surface:var(--surface);--dialog-surface:var(--surface);--control-filter:none}
@media(prefers-reduced-transparency:reduce){:root{--control-surface:var(--surface);--dialog-surface:var(--surface);--control-filter:none}}
@media(prefers-reduced-motion:reduce){*{animation:none;transition:none;scroll-behavior:auto}}
@media(max-width:1100px){.lite-shell{grid-template-columns:220px minmax(0,1fr)}.lite-main{padding-left:30px;padding-right:30px}}
@media(max-width:900px){.service-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.split,.config-layout{grid-template-columns:1fr}}
@media(max-width:680px){
 .lite-shell{display:block;min-height:100vh}.lite-sidebar{position:static;height:auto;padding:14px 16px;gap:12px;border-right:0;border-bottom:1px solid var(--border)}
 .lite-brand{padding:0;border-bottom:0}.lite-sidebar nav{display:flex;overflow:auto;gap:6px}.lite-sidebar nav a{flex:none;font-size:12px}.lite-disclosure,.sidebar-account{display:none}.customer-shell .lite-sidebar nav{display:none}
 .lite-main{padding:24px 16px 96px}.lite-main h1{font-size:28px}.lite-main>header{margin-bottom:24px}.toolbar{gap:14px}.tabs{gap:8px}.search{min-width:0;width:100%;margin-left:0}
 .service-grid.layout-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.layout-grid .card-body{padding:13px 12px}.layout-grid .cover-mark{font-size:44px}
 .service-grid.layout-list{grid-template-columns:1fr}.layout-list .service-card{display:grid;grid-template-columns:104px minmax(0,1fr);align-items:center}.layout-list .cover{width:104px;aspect-ratio:1/1}.layout-list .cover-mark{font-size:40px}.layout-list .card-body{padding:12px 16px}
 .fields,.kb-options{grid-template-columns:1fr}.fields .wide{grid-column:auto}.panel{padding:18px}.facts{gap:8px}.facts article{padding:14px 10px}.facts strong{font-size:21px}
 .mobile-tabs{display:flex;position:fixed;z-index:var(--z-nav);bottom:0;left:0;right:0;justify-content:space-around;padding:8px 10px calc(8px + env(safe-area-inset-bottom));background:var(--control-surface);border-top:1px solid var(--border);backdrop-filter:var(--control-filter);-webkit-backdrop-filter:var(--control-filter)}
 .mobile-tabs a{display:grid;place-items:center;min-height:44px;padding:8px 12px;font-size:12px;color:var(--muted)}.mobile-tabs a.active{color:var(--accent-strong);box-shadow:inset 0 -2px var(--accent);font-weight:600}.customer-shell.chat-active .mobile-tabs{display:none}
 .btn,#close-modal,.tabs button,.config-tabs button,select,.message-citation summary,.message-menu summary,.data-table .btn{min-height:44px}
 .chat-head{padding:15px 16px;gap:10px}.messages{padding:18px 16px;min-height:300px;max-height:60vh}.message{gap:9px;font-size:13px}.message-body{max-width:84%}.message .avatar{width:28px;height:28px}.message-text{padding:11px 13px}.composer{padding:14px 16px}
 .row{flex-wrap:wrap}.row-main{min-width:140px}.kb-options{width:100%;flex-basis:100%}.data-table th,.data-table td{padding:12px 10px}
}
@media(max-width:359px){.service-grid.layout-grid{grid-template-columns:1fr}}
/* Customer mobile density follows the existing Pro phone scale; expert and PC stay unchanged. */
@media(max-width:680px){
 .customer-shell .lite-main{padding:16px 14px 86px}
 .customer-shell .lite-main>header{margin-bottom:14px;padding-bottom:10px}
 .customer-shell .lite-main h1{font-size:18px;line-height:1.2;letter-spacing:-.02em}
 .customer-shell .lite-main h2{font-size:16px;margin-bottom:8px}
 .customer-shell .lite-main h3{font-size:15px;margin-bottom:6px}
 .customer-shell .toolbar{gap:10px;margin-bottom:14px}
 .customer-shell .section-title{margin:16px 0 10px}
 .customer-shell .section-title p{margin:3px 0;font-size:13px;line-height:1.45}
 .customer-shell .tabs{gap:6px}
 .customer-shell .tabs button{font-size:14px;padding:8px 10px}
 .customer-shell input:not([type=checkbox]):not([type=radio]):not([type=range]),.customer-shell select,.customer-shell textarea{font-size:16px}
 .customer-shell .service-grid.layout-grid{gap:10px}
 .customer-shell .layout-grid .card-body{padding:10px}
 .customer-shell .layout-list .service-card{grid-template-columns:88px minmax(0,1fr)}
 .customer-shell .layout-list .cover{width:88px}
 .customer-shell .layout-list .card-body{padding:10px 12px}
 .customer-shell .card-body h3{font-size:15px;line-height:1.22;margin:0 0 5px}
 .customer-shell .card-body p{font-size:12.5px;line-height:1.48}
 .customer-shell .panel{padding:16px}
 .customer-shell .panel+.panel{margin-top:14px}
 .customer-shell .panel p{font-size:13px;line-height:1.45}
 .customer-shell .row{gap:10px;padding:12px 0}
 .customer-shell .row-main strong{font-size:15px;line-height:1.25}
 .customer-shell .row-main p{margin-top:4px;font-size:12.5px;line-height:1.45}
 .customer-shell .facts article{padding:12px 10px}
 .customer-shell .facts strong{font-size:18px;margin:6px 0 4px}
 .customer-shell .chat-head{padding:12px 14px}
 .customer-shell .messages{padding:14px}
 .customer-shell .message{margin-bottom:16px;line-height:1.5}
 .customer-shell .message-author{margin-bottom:4px}
 .customer-shell .message-text{padding:10px 12px}
 .customer-shell .composer{padding:12px 14px}
 .customer-shell .composer textarea{min-height:72px}
 .customer-shell .notice{margin:12px 0;padding:12px 14px;line-height:1.5}
 .customer-shell .empty{padding:24px}
}
@media(forced-colors:active){
 :root{--canvas:Canvas;--surface:Canvas;--surface-subtle:Canvas;--surface-strong:Canvas;--text:CanvasText;--muted:CanvasText;--border:ButtonText;--border-strong:ButtonText;--accent:Highlight;--accent-strong:Highlight;--accent-soft:Highlight;--focus:Highlight;--control-surface:Canvas;--dialog-surface:Canvas;--control-filter:none;--control-depth:none;--control-hover:Canvas;--disabled-surface:Canvas;--disabled-text:GrayText;--scroll-thumb:ButtonText;--scroll-track:Canvas;--scroll-hover:Highlight}
 *{forced-color-adjust:auto}
 :where(.btn,#close-modal,.tabs button,.tabs a,.config-tabs button,input,select,textarea){border-color:ButtonText;box-shadow:none}
 .btn.primary,.tabs button[aria-pressed=true],.tabs .active,.config-tabs button[aria-pressed=true],.config-tabs button[aria-selected=true],.lite-sidebar nav a.active,.mobile-tabs a.active{background:Highlight;color:HighlightText;box-shadow:none}
 .btn.primary:where(:not(:disabled):hover){background:Highlight;color:HighlightText}
 :is(.btn,#close-modal,button,input,select,textarea):disabled{background:Canvas;color:GrayText;box-shadow:none}
 .pill,.pill.ok,.pill.warn,.pill.purple,.notice.warn,.message-text,.message.user .message-text,.lite-brand>span{background:Canvas;color:CanvasText;border:1px solid ButtonText}
 .service-card:hover{box-shadow:none}.danger-text,.btn.danger{color:CanvasText}
 summary:hover{color:CanvasText}
}
.cover img{width:100%;height:100%;object-fit:cover;display:block}
.binding-row{min-width:0;margin:12px 0;padding:16px;border:1px solid var(--border);border-radius:var(--radius)}
.check-field{display:flex;align-items:center;gap:8px}.check-field input{width:auto;flex:none}
.form-error{min-height:1.5em;color:var(--danger);overflow-wrap:anywhere}
#page-status{min-height:1.5em}fieldset{min-width:0}

/* Compact the account route while preserving readable text and touch targets. */
@media(max-width:680px){
 .customer-shell.page-account .facts strong{color:#20242a}
 .customer-shell.page-account .facts small,.customer-shell.page-account .facts p{color:#667085}
 .customer-shell.page-directory .card-body h3{color:#20242a}
 .customer-shell.page-directory .card-body p{color:#667085}
 .customer-shell.page-account .lite-main{padding-top:10px}
 .customer-shell.page-account .lite-main>header{margin-bottom:8px;padding-bottom:6px}
 .customer-shell.page-account .facts{gap:6px;margin-bottom:8px}
 .customer-shell.page-account .facts article{padding:8px 7px}
 .customer-shell.page-account .facts small,.customer-shell.page-account .facts p{line-height:1.25}
 .customer-shell.page-account .facts strong{line-height:1.2;margin:3px 0}
 .customer-shell.page-account .panel{padding:11px 12px}
 .customer-shell.page-account .panel+.panel{margin-top:8px}
 .customer-shell.page-account .panel h2{margin-bottom:5px}
 .customer-shell.page-account .panel p{margin:4px 0 0;line-height:1.35}
 .customer-shell.page-account .row{padding:7px 0;min-height:44px}
 .customer-shell.page-account .row-main p{margin-top:2px}
 .customer-shell.page-account #page-status:empty,.customer-shell.page-directory #page-status:empty{display:none}
 .customer-shell.page-directory .toolbar{gap:8px;margin-bottom:8px}
 .customer-shell.page-directory .service-grid.layout-list{gap:8px}
 .customer-shell.page-directory .layout-list .service-card{grid-template-columns:76px minmax(0,1fr)}
 .customer-shell.page-directory .layout-list .cover{width:76px}
 .customer-shell.page-directory .layout-list .card-body{padding:8px 12px}
 .customer-shell.page-directory .layout-list .card-body p{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
}
@media(min-width:681px){
 .customer-shell.lite-shell{grid-template-columns:200px minmax(0,1fr)}
 .customer-shell .lite-sidebar nav a{font-size:21px}
}
@media(min-width:681px) and (max-width:1100px){.customer-shell.lite-shell{grid-template-columns:196px minmax(0,1fr)}}

.expert-login-shell{min-height:100vh;min-height:100svh;display:grid;place-items:center;padding:24px 16px}
.expert-login-panel{width:min(100%,400px);padding:32px;box-shadow:0 14px 42px #18231f12,0 1px 3px #18231f0a}
.expert-login-brand{display:flex;align-items:center;gap:10px;margin-bottom:28px;font-size:14px;font-weight:600}
.expert-login-brand span{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:var(--accent);color:#fff}
.expert-login-panel h1{margin:0;font-size:28px;line-height:1.3;letter-spacing:-.03em}
.expert-login-panel>p{margin:7px 0 0;color:var(--muted);font-size:13px}
.expert-login-panel form{display:grid;gap:16px;margin-top:26px}
.expert-login-panel form label{display:grid;gap:8px;color:var(--text);font-size:13px;font-weight:600}
.expert-login-panel form input{width:100%;min-height:44px;font-size:16px}
.expert-password-field{position:relative}
.expert-password-field input{padding-right:92px}
.expert-password-field [data-action=show-password]{position:absolute;right:2px;bottom:2px;min-width:44px;min-height:44px;padding:8px 12px;background:transparent;box-shadow:none;font-size:12px}
.expert-login-panel .form-error:empty{display:none}
.expert-login-panel button[type=submit]{width:100%;min-height:44px;font-size:15px}
@media(max-width:480px){.expert-login-panel{padding:28px 24px}.expert-login-panel h1{font-size:26px}}
.expert-model-help{grid-column:1/-1;margin:0;color:var(--muted);font-size:12px}

/* Customer type scale and navigation symbols follow the original miniapp source. */
.customer-shell{--text:#20242a;--muted:#667085;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
.customer-shell .lite-main h1{font-size:22px;color:#20242a;font-weight:600}
.customer-shell .lite-main h2{font-size:17px;color:#20242a;font-weight:600}
.customer-shell .facts strong{font-size:20px;color:#20242a;font-weight:600}
.customer-shell.page-account .lite-main>header{justify-content:flex-start;gap:7px}
.customer-shell.page-account .lite-main>header::before{content:"";display:block;width:24px;height:24px;flex:none;background:url("assets/icons/profile-account.png") center/contain no-repeat}
.customer-shell.page-account .customer-identity .account-label{display:inline-flex;align-items:center;height:14px;margin:0 0 2px;padding:0 5px;border-radius:999px;background:#eef4ff;color:#667085;font-size:11px;font-weight:500;line-height:14px}
.customer-shell .customer-identity p{font-size:12px;color:#667085}
.customer-shell .customer-number-panel{margin-top:8px;color:#667085;font-size:12px}
.customer-shell .customer-number-panel summary{min-height:44px;display:flex;align-items:center;font-weight:500}
.customer-shell .customer-number-panel p{margin:3px 0;overflow-wrap:anywhere}
.customer-shell .lite-sidebar nav a,.customer-shell .mobile-tabs a{gap:8px}
.customer-shell .lite-sidebar nav a::before,.customer-shell .mobile-tabs a::before{content:"";display:block;flex:none;width:24px;height:24px;background-size:contain;background-position:center;background-repeat:no-repeat}
.customer-shell :is(.lite-sidebar nav,.mobile-tabs) a[href*="/recent"]::before{background-image:url("assets/icons/tab-recent-normal.png")}
.customer-shell :is(.lite-sidebar nav,.mobile-tabs) a[href*="/directory"]::before{background-image:url("assets/icons/tab-agents-normal.png")}
.customer-shell :is(.lite-sidebar nav,.mobile-tabs) a[href*="/account"]::before{background-image:url("assets/icons/tab-profile-normal.png")}
.customer-shell :is(.lite-sidebar nav,.mobile-tabs) a.active[href*="/recent"]::before{background-image:url("assets/icons/tab-recent-active.png")}
.customer-shell :is(.lite-sidebar nav,.mobile-tabs) a.active[href*="/directory"]::before{background-image:url("assets/icons/tab-agents-active.png")}
.customer-shell :is(.lite-sidebar nav,.mobile-tabs) a.active[href*="/account"]::before{background-image:url("assets/icons/tab-profile-active.png")}
.customer-shell .facts article{position:relative}
.customer-shell .facts article::before{content:"";position:absolute;top:8px;right:8px;width:20px;height:20px;background-size:contain;background-repeat:no-repeat}
.customer-shell .facts article:nth-child(1)::before{background-image:url("assets/icons/tab-agents-active.png")}
.customer-shell .facts article:nth-child(2)::before{background-image:url("assets/icons/benefit-member.png")}
.customer-shell .facts article:nth-child(3)::before{background-image:url("assets/icons/benefit-compute.png")}
.customer-shell .search{align-items:center;gap:8px;white-space:nowrap}
.customer-shell .search input{min-width:0;padding-left:42px;background-image:url("assets/icons/search.svg");background-repeat:no-repeat;background-position:14px center;background-size:16px 16px}
@media(max-width:480px){
 .customer-shell .mobile-tabs a{display:flex;flex-direction:column;gap:2px;font-size:2.933vw;font-weight:500;line-height:1.12}
 .customer-shell .mobile-tabs a::before{width:6.4vw;height:6.4vw}
 .customer-shell .mobile-tabs a.active{font-weight:600;color:#2563eb}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell .lite-main h1{font-size:4.8vw;color:#172033;font-weight:600}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell.page-account .lite-main h1{font-size:4.267vw}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell .lite-main h2{font-size:4vw;color:#172033;font-weight:600}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell .card-body h3{font-size:4vw;font-weight:600;line-height:1.22}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell .card-body p{font-size:3.333vw;line-height:1.48}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell .row-main strong{font-size:4vw;font-weight:600}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell .row-main p{font-size:3.467vw;line-height:1.5}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell .panel p{font-size:3.467vw;line-height:1.5}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell.page-account .facts strong{font-size:4.133vw;color:#667085;font-weight:600}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell.page-account .facts small,#app:is(.mini-preview,:not(.mini-preview)) .customer-shell.page-account .facts p{font-size:3.467vw}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell .section-title p{font-size:3.467vw}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell.page-directory .section-title h2{font-size:4.533vw}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell.page-directory .section-title p{font-size:2.933vw;color:#98a2b3}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell.page-support .panel h2{font-size:4.267vw}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell.page-legal .panel h2{font-size:5.6vw;color:#111827}
 #app:is(.mini-preview,:not(.mini-preview)) .customer-shell.page-legal .legal-copy p{font-size:3.733vw;color:#374151}
}

.customer-shell.page-account .panel h2{display:flex;align-items:center;gap:8px}
.customer-shell .panel-symbol{display:inline-block;flex:none;width:18px;height:18px;background-size:contain;background-repeat:no-repeat;background-position:center}
.customer-shell .panel-symbol.service{background-image:url("assets/icons/tab-agents-active.png")}
.customer-shell .panel-symbol.record{background-image:url("assets/icons/profile-account.png")}
.customer-shell .panel-symbol.help,.customer-shell .panel-symbol.feedback{background-image:url("assets/icons/service-contact.png")}
.customer-shell .panel-symbol.legal{position:relative;border:2px solid #2563eb;border-radius:3px}
.customer-shell .customer-identity{margin-bottom:8px}
.customer-shell .customer-identity strong{display:block;overflow-wrap:anywhere;font-size:16px;line-height:1.25}
@media(max-width:480px){.customer-shell .customer-identity strong{font-size:4vw}#app:is(.mini-preview,:not(.mini-preview)) .customer-shell .customer-identity .account-label{font-size:2.8vw;color:#667085;font-weight:500}#app:is(.mini-preview,:not(.mini-preview)) .customer-shell .customer-identity p{font-size:3.2vw}}
.customer-shell .customer-identity p{overflow-wrap:anywhere}
.customer-shell .service-guide-card{margin:8px 0;padding:12px}
.customer-shell .service-guide-card strong{font-size:14px}
.customer-shell .service-guide-card p{margin:4px 0;white-space:pre-wrap}
.customer-shell .service-guide-card img{display:block;max-width:160px;max-height:160px;object-fit:contain}
.customer-shell .panel-symbol.legal::before,.customer-shell .panel-symbol.legal::after{content:"";position:absolute;left:3px;width:8px;height:2px;background:#2563eb}
.customer-shell .panel-symbol.legal::before{top:5px}
.customer-shell .panel-symbol.legal::after{top:10px}

@media(max-width:680px){
 #app .customer-shell{--customer-card-gap:6px}
 #app .customer-shell .service-grid,#app .customer-shell .split{gap:var(--customer-card-gap)}
 #app .customer-shell .split .panel+.panel{margin-top:var(--customer-card-gap)}
 #app .customer-shell.page-account .customer-identity{margin-bottom:var(--customer-card-gap)}
 #app .customer-shell.page-account .facts{gap:var(--customer-card-gap);margin-bottom:var(--customer-card-gap)}
 #app .customer-shell.page-account .panel+.panel{margin-top:var(--customer-card-gap)}
 #app .customer-shell.page-account .split .panel+.panel{margin-top:0}
}

.customer-shell.page-directory .service-grid>.empty{grid-column:1/-1;justify-self:stretch}
.customer-shell .lite-brand strong{font-size:14px;white-space:nowrap}
.customer-shell.chat-active .chat-pane{background:#f6f8fb;border-radius:0}
.customer-shell.chat-active .chat-head{background:#fff;border-bottom:1px solid #edf1f5}
.customer-shell.chat-active .chat-head .avatar{width:26px;height:26px;font-size:12px}
.customer-shell.chat-active .chat-back{font-size:23px;line-height:1;text-decoration:none}
.customer-shell.chat-active .messages{background:#f6f8fb}
.customer-shell.chat-active .message-author{display:none}
.customer-shell.chat-active .message-text{background:#fff;border:1px solid #edf1f5;border-radius:8px 12px 12px 12px;color:#1f2933}
.customer-shell.chat-active .message.user .message-text{background:#2563eb;border-color:#2563eb;border-radius:12px 8px 12px 12px;color:#fff}
.customer-shell.chat-active .composer{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;background:#fff}
.customer-shell.chat-active .composer input{width:100%;height:41px;min-height:41px;padding:0 12px;background:#f6f8fb;border:1px solid #d9dee8;border-radius:8px;font-size:14px;color:#1f2933}
.customer-shell.chat-active .composer-foot{margin:0}
.customer-shell.chat-active #chat-status{grid-column:1/-1;min-height:0;margin:0;font-size:12px}
.customer-shell.chat-active #chat-status:empty{display:none}
@media(max-width:680px){
 .customer-shell.chat-active{height:100dvh;min-height:0;overflow:hidden}
 .customer-shell.chat-active .lite-sidebar,.customer-shell.chat-active .lite-main>header{display:none}
 .customer-shell.chat-active .lite-main{height:100%;padding:0!important;display:flex;flex-direction:column;overflow:hidden}
 .customer-shell.chat-active #page-status:empty{display:none}
 .customer-shell.chat-active .chat-layout{flex:1;min-height:0;display:flex}
 .customer-shell.chat-active .chat-pane{flex:1;min-height:0;display:flex;flex-direction:column;border:0}
 .customer-shell.chat-active .messages{flex:1;min-height:0;max-height:none;overflow:auto}
 .customer-shell.chat-active .composer{flex:none;padding-bottom:calc(12px + env(safe-area-inset-bottom))}
}
@media (max-width:480px) and (forced-colors:active){
 .customer-shell .mobile-tabs a.active{background:Highlight;color:HighlightText;box-shadow:none}
}