/* Original CTCSOL account UI. No third-party components or external assets. */
:root {
  --ink:#17324f; --blue:#174d80; --gold:#ad8951; --muted:#5e6a71;
  --line:#dce2e7; --paper:#f4f6f8; --warm:#faf7f0; --white:#fff;
  --danger:#923c2b; --danger-paper:#fff3ee; --success:#245d4c;
  --serif:Georgia,"Noto Serif CJK SC","Songti SC",SimSun,serif;
  --sans:Arial,"Noto Sans CJK SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{color:var(--ink);background:var(--paper);font-family:var(--sans);font-size:16px;line-height:1.65}
body{margin:0}
a{color:var(--blue);text-underline-offset:4px}
a:hover{text-decoration-thickness:2px}
button,input,select{font:inherit}
button,a,summary,input,select{-webkit-tap-highlight-color:transparent}
button,summary,select{cursor:pointer}
button:disabled{cursor:default}
:focus-visible{outline:3px solid var(--gold);outline-offset:4px}
h1,h2,h3,p,ul,ol,dl{margin-top:0}
h1,h2,h3{color:var(--ink);line-height:1.3}
h1,h2{font-family:var(--serif);font-weight:400}
h1{font-size:clamp(30px,4vw,40px);margin-bottom:12px}
h2{font-size:24px;margin-bottom:18px;font-family:var(--sans);font-weight:600}
h3{font-size:20px;margin-bottom:10px}
p{margin-bottom:16px}
small{font-size:14px}
[hidden]{display:none}
.la-container{width:min(1140px,calc(100% - 64px));margin-inline:auto}
.la-skip{position:absolute;left:16px;top:-100px;z-index:10;background:var(--white);padding:12px 18px}
.la-skip:focus{top:10px}
.la-topline{background:var(--ink);color:#e6edef;font-size:13px}
.la-topline-inner{display:flex;gap:20px;justify-content:space-between;align-items:center;min-height:40px}
.la-language{display:flex;align-items:center;gap:12px}
.la-language select{background:var(--ink);border:1px solid #768d9a;border-radius:2px;color:var(--white);padding:4px 8px;min-height:32px;max-width:155px}
.la-site-header{border-bottom:1px solid var(--line)}
.la-header-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;min-height:110px;padding-block:24px}
.la-brand{display:block;text-decoration:none;color:var(--ink);flex:0 1 auto;max-width:100%;min-width:0}
.la-brand>span{font:30px var(--serif);line-height:1.2}
.la-brand-domain{color:var(--gold);font-size:24px}
.la-brand small{display:block;color:var(--muted);font:12px/1.6 var(--sans);margin-top:7px}
.la-nav{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.la-nav a{color:var(--ink);font-size:14px;min-height:44px;display:flex;align-items:center;text-decoration:none}
.la-nav a:last-child{color:var(--blue);text-decoration:underline}
.la-global-status:empty{display:none}
.la-global-status{margin-top:24px;padding:13px 18px;background:#eaf3ef;border-left:3px solid var(--blue);font-size:15px}
.la-global-status.is-error{background:var(--danger-paper);border-color:var(--danger);color:var(--danger)}
.la-main{padding-block:42px 70px;min-height:60vh;outline:none}
.la-eyebrow{font-size:12px;letter-spacing:.12em;font-weight:700;text-transform:uppercase;color:var(--blue);margin-bottom:12px}
.la-intro{font-size:18px;color:var(--muted);max-width:750px;margin-bottom:22px}
.la-heading{max-width:870px}
.la-beta{background:var(--warm);border-left:3px solid var(--gold);padding:12px 18px;font-size:14px;margin:24px 0 28px}
.la-beta p{margin:0}
.la-note{font-size:14px;color:var(--muted);line-height:1.65}
.la-muted{color:var(--muted)}
.la-small{font-size:14px}
.la-lead{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;padding:28px 0 30px;border-top:2px solid var(--ink);border-bottom:1px solid var(--line)}
.la-lead h2{margin-bottom:10px}
.la-lead p{color:var(--muted);max-width:700px;margin-bottom:0}
.la-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px}
.la-lead>.la-actions{margin:0}
.la-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--blue);border-radius:6px;background:var(--blue);color:var(--white);font-weight:600;font-size:15px;line-height:1.5;min-height:46px;padding:11px 18px;text-decoration:none;max-width:100%;text-align:center;white-space:normal;overflow-wrap:anywhere}
.la-button:hover{background:#123d66;border-color:#123d66;text-decoration:none}
.la-button.secondary{background:var(--white);color:var(--blue)}
.la-button.secondary:hover{background:#edf2f7}
.la-button.danger{background:var(--danger);border-color:var(--danger)}
.la-button.danger:hover{background:#753023}
.la-button:disabled{opacity:.48}
.la-link-button{border:0;background:transparent;color:var(--blue);padding:8px 2px;text-decoration:underline;text-underline-offset:4px;min-height:44px;text-align:left}
.la-link-button:disabled{opacity:.5;text-decoration:none}
.la-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;max-width:730px;margin:26px 0 40px;padding:0}
.la-stat{border-left:1px solid var(--line);padding-left:20px}
.la-stat:first-child{border-left:0;padding-left:0}
.la-stat dt{font-size:14px;color:var(--muted);margin-bottom:6px}
.la-stat dd{font-family:var(--serif);font-size:31px;line-height:1.2;margin:0}
.la-section{margin-top:44px}
.la-section-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:16px}
.la-section-head h2{margin:0}
.la-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.la-group{padding-top:22px;border-top:1px solid var(--line);min-width:0}
.la-group-number{font:26px var(--serif);color:var(--gold);display:block;margin-bottom:12px}
.la-group h3{font-family:var(--serif);font-size:25px;font-weight:400}
.la-group p{color:var(--muted);font-size:15px}
.la-group .la-actions{margin-top:18px}
.la-topic-list,.la-history-list{list-style:none;margin:0;padding:0}
.la-topic{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:26px;align-items:start;border-bottom:1px solid var(--line);padding:21px 0}
.la-topic h3{font-size:18px;margin-bottom:7px}
.la-topic p{margin-bottom:0;font-size:14px;color:var(--muted)}
.la-topic .la-actions{margin-top:6px;justify-content:flex-end}
.la-status{display:inline-block;font-size:12px;font-weight:600;padding:3px 8px;border-radius:2px;background:var(--paper);color:var(--muted);margin-bottom:9px}
.la-status.review{background:#fff0e9;color:#8c392a}
.la-status.mixed{background:#fbf3df;color:#785419}
.la-status.consistent,.la-status.completed{background:#eaf4ef;color:#25594a}
.la-status.in_progress{background:#eaf2f5;color:#295971}
.la-disclosure{border-bottom:1px solid var(--line)}
.la-disclosure>summary{color:var(--blue);font-weight:600;padding:16px 0;min-height:48px;overflow-wrap:anywhere}
.la-disclosure>.la-note{margin:0 0 18px}
.la-empty{padding:24px;border:1px dashed #b7c3c5;background:var(--paper)}
.la-empty p:last-child{margin-bottom:0}
.la-history{display:grid;grid-template-columns:minmax(0,1fr) minmax(160px,.7fr) auto;gap:24px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
.la-history h3{font-size:17px;margin-bottom:6px}
.la-history p{font-size:13px;color:var(--muted);margin-bottom:0}
.la-history .la-status{margin-bottom:8px}
.la-history-result{font-size:15px}
.la-history-result strong{display:block;font-size:19px;font-weight:600}
.la-pagination{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:24px}
.la-pagination p{margin:0;font-size:14px;color:var(--muted)}
.la-privacy{background:#edf1f5;padding:26px 28px;margin-top:48px;border-radius:12px}
.la-privacy h2{font-size:25px}
.la-privacy .la-note{max-width:850px}
.la-consent{background:#fff;border-radius:12px;max-width:820px;margin-top:28px;padding:26px;border:1px solid var(--line)}
.la-consent ul{padding-left:22px;margin-bottom:22px}
.la-check-label{display:flex;align-items:flex-start;gap:12px;font-size:15px;line-height:1.65}
.la-check-label input{flex:none;width:19px;height:19px;margin:4px 0 0;accent-color:var(--blue)}
.la-check-label span{min-width:0}
.la-clear-panel{padding:20px 0 0;border-top:1px solid var(--line);margin-top:22px}
.la-clear-panel h3{color:var(--danger)}
.la-clear-panel .la-check-label{max-width:850px}
.la-error-box{margin:20px 0;padding:15px 18px;border-left:3px solid var(--danger);background:var(--danger-paper);color:var(--danger)}
.la-error-box p:last-child{margin:0}
.la-loading{display:flex;align-items:center;gap:14px;padding:44px 0;color:var(--muted)}
.la-loading p{margin:0}
.la-loading-dot{width:12px;height:12px;border-radius:50%;background:var(--blue);flex:none;animation:la-pulse 1.3s ease-in-out infinite}
@keyframes la-pulse{50%{opacity:.35}}
.la-quiz{max-width:850px;margin-inline:auto}
.la-quiz h1{font-size:clamp(28px,3vw,39px)}
.la-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.la-toolbar p{margin:0;font-size:14px;color:var(--muted)}
.la-progress{display:block;width:100%;height:6px;border:0;accent-color:var(--blue);background:var(--line);margin:14px 0 28px}
.la-progress::-webkit-progress-bar{background:var(--line)}
.la-progress::-webkit-progress-value{background:var(--blue)}
.la-quiz-meta{font-size:14px;color:var(--muted);margin-bottom:8px}
.la-question{margin:0;padding:0;border:0;min-width:0}
.la-question legend{padding:0;margin-bottom:12px;color:var(--muted);width:100%}
.la-context{padding:12px 18px;border-left:2px solid var(--gold);background:var(--warm);font-size:16px;margin-bottom:18px}
.la-stem{font-size:clamp(23px,3vw,31px);line-height:1.7;margin-bottom:24px;white-space:pre-wrap;overflow-wrap:anywhere}
.la-options{display:grid;gap:12px}
.la-choice{display:flex;gap:14px;align-items:flex-start;min-height:58px;padding:14px 18px;border:1px solid var(--line);border-radius:4px;cursor:pointer;background:var(--white)}
.la-choice:hover{border-color:#8da5a8}
.la-choice:has(input:checked){background:#edf3fa;border-color:var(--blue);box-shadow:inset 3px 0 var(--blue)}
.la-choice:has(input:focus-visible){outline:3px solid var(--gold);outline-offset:3px}
.la-choice input{width:18px;height:18px;accent-color:var(--blue);margin:8px 0 0;flex:none}
.la-choice span{font-size:20px;line-height:1.6;overflow-wrap:anywhere}
.la-save-state{min-height:27px;margin-top:17px;font-size:14px;color:var(--muted)}
.la-save-state.is-saved{color:var(--success)}
.la-save-state.is-error{color:var(--danger)}
.la-quiz-navigation{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:24px;border-top:1px solid var(--line);padding-top:20px;flex-wrap:wrap}
.la-quiz-navigation .la-actions{margin:0}
.la-finish{padding:24px;background:var(--paper);margin-top:28px;border-top:2px solid var(--blue)}
.la-finish h2{font-size:25px;margin-bottom:12px}
.la-question-grid{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
.la-question-jump{width:40px;height:40px;background:var(--white);border:1px solid var(--line);color:var(--muted);border-radius:2px}
.la-question-jump.is-recorded{border-color:#8ba79d;background:#edf4f0;color:var(--success)}
.la-question-jump.is-current{outline:2px solid var(--blue);outline-offset:2px;font-weight:700;color:var(--ink)}
.la-result-lead{font-size:21px;margin:18px 0 22px;line-height:1.6}
.la-result-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;border-block:1px solid var(--line);padding:22px 0;margin:24px 0}
.la-result-metrics strong{font-size:28px;display:block;font-weight:500;line-height:1.3}
.la-result-metrics span{font-size:14px;color:var(--muted)}
.la-result-detail{padding:16px 0;border-bottom:1px solid var(--line)}
.la-result-detail>summary{font-weight:600;cursor:pointer;min-height:44px;line-height:1.6}
.la-result-detail .la-stem{font-size:23px;margin:12px 0 18px}
.la-result-detail p{font-size:15px}
.la-result-detail .la-explanation{background:var(--paper);padding:18px;border-left:2px solid var(--blue)}
.la-result-detail .la-explanation p:last-child{margin-bottom:0}
.la-detail-status{margin-right:10px}
.la-footer{border-top:1px solid var(--line);padding-block:24px;color:var(--muted);font-size:13px}
.la-footer p{margin:0}
@media(max-width:800px){
  .la-container{width:calc(100% - 40px)}
  .la-header-inner{align-items:flex-start;gap:22px;flex-wrap:wrap;padding-block:20px}
  .la-nav{gap:20px}
  .la-main{padding-top:30px}
  .la-lead{grid-template-columns:1fr;gap:20px}
  .la-groups{grid-template-columns:1fr;gap:22px}
  .la-group-number{float:right}
  .la-group h3{padding-right:44px}
  .la-topic{grid-template-columns:1fr;gap:8px}
  .la-topic .la-actions{justify-content:flex-start}
  .la-history{grid-template-columns:minmax(0,1fr) auto;gap:12px}
  .la-history-result{grid-column:1}
  .la-history>.la-button{grid-column:2;grid-row:1 / span 2}
  .la-privacy{padding:22px}
}
@media(max-width:480px){
  .la-container{width:calc(100% - 32px)}
  .la-topline-inner{align-items:flex-start;padding-block:8px;gap:10px}
  .la-topline-inner>span{font-size:11px;max-width:105px}
  .la-language{gap:7px;flex-wrap:wrap;justify-content:flex-end;max-width:165px}
  .la-language label{font-size:11px}
  .la-language select{font-size:13px}
  .la-nav{gap:12px 20px}
  .la-nav a{font-size:13px}
  .la-brand>span{font-size:28px}
  .la-stats{gap:12px}
  .la-stat{padding-left:12px}
  .la-stat dd{font-size:27px}
  .la-stat dt{font-size:12px;overflow-wrap:anywhere}
  .la-section-head{align-items:flex-start;flex-direction:column;gap:8px}
  .la-consent{padding:20px}
  .la-history{grid-template-columns:1fr}
  .la-history>.la-button{grid-column:auto;grid-row:auto;justify-self:start}
  .la-history-result{grid-column:auto}
  .la-choice{padding:12px 14px;gap:12px}
  .la-choice span{font-size:19px}
  .la-quiz-navigation{align-items:flex-start}
  .la-quiz-navigation>.la-actions{width:100%}
  .la-quiz-navigation .la-button{flex:1}
  .la-result-metrics{gap:13px}
  .la-result-metrics strong{font-size:25px}
  .la-result-metrics span{font-size:12px}
  .la-finish{padding:20px}
  .la-privacy{padding:20px}
}
@media(prefers-reduced-motion:reduce){.la-loading-dot{animation:none}}
@media print{
  .la-topline,.la-site-header,.la-footer,.la-actions,.la-quiz-navigation,.la-privacy,.la-global-status,.la-skip{display:none}
  .la-container{width:100%}.la-main{padding:0}.la-result-detail{break-inside:avoid}
}

/* Shared member visual language with a focused learning workspace. */
.la-site-header{background:var(--ink);color:#fff;border:0}
.la-header-inner{min-height:80px;padding-block:16px;gap:24px}
.la-header-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap;justify-content:flex-end}
.la-brand{color:#fff}
.la-brand>span{font-size:27px}
.la-brand small{display:none}
.la-brand-domain{color:#d7b477;font-size:22px}
.la-nav{gap:22px}
.la-nav a,.la-nav a:last-child{color:#fff;text-decoration:none;font-size:13px}
.la-nav a:hover{text-decoration:underline}
.la-language{font-size:13px;gap:8px}
.la-language select{border-radius:6px;min-height:40px;padding:6px}
.la-site-header :focus-visible{outline-color:#f0c777}
.la-main{padding-block:34px 60px}
.la-intro{font-size:15px;margin-bottom:0;max-width:36em}
.la-overview{display:grid;grid-template-columns:minmax(0,1fr) minmax(400px,.9fr);gap:42px;align-items:center}
.la-eyebrow{font-size:11px;color:#806738;margin-bottom:8px}
.la-overview .la-stats{margin:0;max-width:none;gap:18px;background:#fff;padding:24px;border:1px solid var(--line);border-radius:12px}
.la-stat dd{font-family:var(--sans);font-size:30px;font-weight:600}
.la-stat dt{font-size:13px;line-height:1.5;min-height:2.9em}
.la-shortcuts{display:flex;gap:12px 28px;flex-wrap:wrap;margin-top:24px;border-bottom:1px solid var(--line)}
.la-shortcuts a{display:flex;align-items:center;min-height:46px;font-size:14px;text-decoration:none;padding:0 0 12px}
.la-shortcuts a:first-child{font-weight:600;border-bottom:2px solid var(--ink);color:var(--ink)}
.la-shortcuts a:hover{text-decoration:underline}
.la-beta{margin:18px 0 24px;border-radius:0 6px 6px 0;font-size:13px;padding:10px 16px}
.la-practice-section{margin-top:24px}
.la-groups{gap:20px}
.la-group{position:relative;padding:24px;background:#fff;border:1px solid var(--line);border-radius:12px;display:flex;flex-direction:column}
.la-group-number{font:13px var(--sans);letter-spacing:.08em;color:#806738;margin-bottom:14px}
.la-group h3{font:600 22px/1.4 var(--sans);margin-bottom:10px}
.la-group p{font-size:14px;line-height:1.7;margin-bottom:20px}
.la-group .la-actions{margin-top:auto;padding-top:4px}
.la-group .la-button{width:100%}
.la-lead{border:1px solid #bacbdc;background:#edf3fa;padding:22px 24px;border-radius:12px;margin-bottom:24px;gap:20px}
.la-lead h2{font-size:21px}
.la-lead p{font-size:14px}
.la-points-details{font-size:13px;border-bottom:0;margin-top:10px}
.la-points-details>summary{font-size:13px;padding:10px 0;min-height:40px;font-weight:400}
.la-topic,.la-history{background:#fff;padding:22px;border:1px solid var(--line);border-radius:10px;margin-top:12px}
.la-empty{border-radius:10px;font-size:14px}
.la-section-head{align-items:center}
.la-section{scroll-margin-top:24px}
.la-privacy h2{font-size:22px}
.la-privacy-details>summary{min-height:44px;display:flex;align-items:center;text-decoration:underline;text-underline-offset:4px;cursor:pointer;font-size:14px}
.la-quiz{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px 34px}
.la-quiz .la-beta{margin-bottom:22px}
.la-quiz .la-intro{margin-bottom:20px}
.la-result-detail{background:#fff;padding:18px 22px;border:1px solid var(--line);border-radius:10px;margin-top:12px}
.la-guest-note{margin-top:22px;max-width:48em}
@media(max-width:900px){
 .la-overview{grid-template-columns:1fr;gap:22px}
 .la-overview .la-stats{max-width:none}
 .la-header-inner{flex-wrap:wrap;gap:10px 24px}
 .la-header-actions{gap:12px 22px;justify-content:space-between;flex:1;min-width:0}
}
@media(max-width:800px){
 .la-groups{grid-template-columns:1fr}
 .la-group-number{float:none;position:absolute;right:22px;top:26px}
 .la-group h3{padding-right:35px}
 .la-group .la-actions{margin-top:0}
 .la-group .la-button{width:auto}
 .la-lead{grid-template-columns:1fr}
}
@media(max-width:600px){
 .la-header-actions{width:100%;flex:auto;gap:8px 16px}
 .la-nav{gap:16px}
 .la-language label{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
 .la-language select{max-width:100px;font-size:12px}
 .la-main{padding-top:26px}
 .la-overview .la-stats{padding:18px 16px;gap:12px}
 .la-stat dd{font-size:26px}
 .la-stat dt{font-size:12px}
 .la-shortcuts{gap:8px 18px;margin-top:18px}
 .la-shortcuts a{font-size:13px}
 .la-group{padding:22px}
 .la-quiz{padding:22px 18px}
 .la-history,.la-topic{padding:18px}
 .la-result-detail{padding:16px}
}
@media print{html{background:#fff}.la-shortcuts{display:none}.la-quiz{border:0;padding:0}}

#learning-page-title:focus{outline:none}.la-group .la-button.secondary{background:var(--ink);border-color:var(--ink);color:#fff}.la-group .la-button.secondary:hover{background:#244a6c;border-color:#244a6c}

#learning-page-title,#learning-question-heading,#learning-finish-title,#learning-history-title{scroll-margin-top:24px}#learning-question-heading:focus{outline:none}

.la-button:not(.secondary):not(.danger){background:var(--ink);border-color:var(--ink)}.la-button:not(.secondary):not(.danger):hover{background:#244a6c;border-color:#244a6c}

@media(max-width:360px){.la-main{padding-top:20px}.la-overview{gap:16px}.la-shortcuts{margin-top:12px;gap:0 16px}.la-shortcuts a{padding-bottom:8px;min-height:40px}.la-beta{margin-top:14px}}