/* Swiss International Style — canonical visual tokens and shared theme. */
:root{--ink:#102342;--green:#466996;--muted:#52627a;--paper:#fff;--line:#d6dfed;--lime:#eaf0f7;--white:#fff;--serif:Arial,'Helvetica Neue','Microsoft YaHei',sans-serif;--blue:#466996;--blue-dark:#304f77;--pale:#f3f6fc;--font-body:'Helvetica Neue',Arial,'Microsoft YaHei',sans-serif;--font-data:'Arial',sans-serif;--scroll-thumb:#9cacc7;--scroll-track:#f3f6fc;--scroll-hover:#627ea7;--scroll-active:#466996}
*{scrollbar-width:thin;scrollbar-color:var(--scroll-thumb) var(--scroll-track)}*::-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)}*::-webkit-scrollbar-thumb:hover{background:var(--scroll-hover)}*::-webkit-scrollbar-thumb:active{background:var(--scroll-active)}html{scrollbar-gutter:stable;scroll-padding-top:24px}body{font-family:var(--font-body);background:var(--paper);color:var(--ink);font-size:15px;line-height:1.65}button,input,select{font-family:inherit}button,a,summary{transition:background-color .15s,color .15s,border-color .15s}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--blue);outline-offset:4px}button:hover:not(:disabled){filter:brightness(.95)}button:disabled{opacity:.48}input[type=checkbox]{accent-color:var(--blue)}
.topbar{height:auto;min-height:104px;padding:22px 4.5%;border-bottom:2px solid var(--ink);background:var(--paper);gap:26px}.brand{font-size:23px;letter-spacing:-.7px;line-height:1.2}.brandmark{display:block;flex:0 0 2px;width:2px;height:36px;background:var(--blue);font-size:0;line-height:0}.brandcn{font-size:9px;font-weight:700;letter-spacing:2.6px;margin-top:7px;color:var(--muted)}.topbar nav{gap:28px}.topbar nav a{font-size:13px;color:var(--muted)}.topbar nav a:hover,.topbar nav .nav-active{color:var(--blue)}.nav-active:after{width:100%;height:3px;background:var(--blue)}.experiment{border-radius:0;color:var(--muted);font-size:10px;border-color:var(--line)}.experiment i,.live-dot{background:var(--blue);border-radius:0}
main{max-width:1600px;padding:0 4.5%}.task-switch{max-width:none;margin:0;padding:24px 0;border-bottom:1px solid var(--line);gap:0}.task-switch>span{margin-right:26px;font-size:11px;font-weight:700;letter-spacing:1px;color:var(--muted)}.task-switch button{border-radius:0;border:1px solid var(--line);padding:13px 22px;font-weight:700;color:var(--ink);background:var(--paper);min-height:48px;margin-left:-1px}.task-switch button.selected{background:var(--blue);border-color:var(--blue);color:var(--white)}
.hero{grid-template-columns:1.1fr 1fr;gap:7%;padding:68px 0 72px;align-items:stretch}.eyebrow,.section-kicker{color:var(--blue);font-size:10px;letter-spacing:1.5px;font-weight:700}.eyebrow span{background:var(--blue)}h1{font-family:var(--font-body);font-size:clamp(44px,5.4vw,82px);line-height:1.13;letter-spacing:-2.8px;font-weight:700;margin:26px 0 30px}h2{font-weight:700;letter-spacing:-1px;font-size:29px}h3,h4{font-weight:700}.hero-copy>p{font-size:15px;line-height:1.9;color:var(--muted);max-width:510px}.hero-bottom{color:var(--muted);font-size:11px;margin-top:32px}.avatar-dot{border-radius:0;border-color:var(--line);color:var(--blue)}
.swiss-task-poster{display:flex;flex-direction:column;background:var(--blue);color:var(--white);padding:28px 32px;min-height:430px}.poster-heading{font-size:12px;letter-spacing:2px;font-weight:700;display:flex;justify-content:space-between;padding-bottom:22px;border-bottom:1px solid #ffffff70;gap:16px}.poster-heading span{font-size:10px;letter-spacing:1px;font-weight:400}.poster-task{display:grid;grid-template-columns:.9fr 1fr;gap:18px;align-items:center;flex:1;border-bottom:1px solid #ffffff70;padding:16px 0}.poster-task strong{font:700 clamp(80px,9vw,146px)/.9 Arial,sans-serif;letter-spacing:-8px}.poster-task>div{font-size:clamp(19px,2vw,30px);font-weight:700;line-height:1.08;letter-spacing:-.6px}.poster-task span{display:block;font-size:11px;font-weight:400;letter-spacing:1px;margin-top:15px}.poster-foot{font-size:8px;font-weight:700;letter-spacing:1.4px;margin-top:24px}
.data-strip{padding:20px 0;color:var(--muted);font-size:11px;border-top:2px solid var(--ink)}.data-strip strong{color:var(--blue);font-family:var(--font-data);font-size:18px}.workspace,.interview-workspace{grid-template-columns:minmax(240px,300px) minmax(0,1fr);gap:44px;padding-top:44px}.controls,.interview-controls{border-radius:0;background:var(--pale);border:1px solid var(--line);box-shadow:none;padding:26px;top:24px}.controls h2{font-size:24px}.controls label,.interview-controls label{color:var(--ink);font-size:12px;font-weight:700}.controls select,.interview-controls select,.practice-launch input,.practice-launch select,.exam-options select,.association-context select{border-radius:0;border-color:var(--line);background:var(--white);color:var(--ink);min-height:46px}.controls-note,.mini-stats{border-color:var(--line);color:var(--muted)}.controls-note p,.controls-note span,.mini-stats>span{color:var(--muted)}.mini-stats strong{color:var(--blue)}.calendar-note,.calendar-source,.interview-scope{color:var(--muted)}.size-switch{border-radius:0}.size-switch button{border-radius:0;border-color:var(--line);background:var(--white);color:var(--ink);min-height:42px}.size-switch button.selected,.generate,.practice-launch button,.exam-primary{border-radius:0;background:var(--blue);color:var(--white);border-color:var(--blue)}.generate{min-height:49px;font-weight:700}.advanced-settings{border-color:var(--line)}.result-heading h2{font-size:30px}.result-heading p{color:var(--muted)}.text-button{color:var(--blue)}.notice,.notice.warn,.exam-comparison{background:var(--pale);border:0;border-left:3px solid var(--blue);border-radius:0;color:var(--muted);padding:15px 18px;line-height:1.8;font-size:12px}.filter-search{background:var(--white);border:1px solid var(--line);border-radius:0;min-height:45px}.filter-search input{color:var(--ink)}.filter-search span{color:var(--blue)}.hide-mastered{color:var(--muted)}
.topic-card,.interview-card{border-radius:0;box-shadow:none;background:var(--white);border:1px solid var(--line);border-top:2px solid var(--ink);padding:24px;margin-bottom:0}.cards{gap:16px}.topic-main{align-items:flex-start;gap:20px}.rank{color:var(--blue);font-family:var(--font-data);font-size:27px;line-height:1.25;font-weight:700}.topic-title{font-size:19px;line-height:1.5;letter-spacing:-.3px}.topic-meta{color:var(--muted);font-size:11px}.category{background:var(--pale);color:var(--blue);border-radius:0}.mastered-button,.practice-card-button{border-radius:0;border:1px solid var(--line);color:var(--blue);background:var(--white);font-size:11px;padding:8px 10px;min-height:36px}.mastered-button.done{background:var(--lime);color:var(--blue)}.topic-card.is-mastered{background:var(--pale)}.topic-details{border-color:var(--line)}summary{color:var(--blue)}.detail-content{color:var(--muted);font-size:13px}.date-chip{background:var(--pale);border:1px solid var(--line);color:var(--ink);border-radius:0;font-family:var(--font-data);font-size:11px;padding:4px 8px}.result-footnote,.result-subtitle{color:var(--muted)}
.practice-hub,.evidence,.library{padding:60px 0;border-top:2px solid var(--ink)}.section-heading{align-items:flex-start}.section-heading h2{font-size:32px}.section-heading p{color:var(--muted)}.practice-launch{border-radius:0;background:var(--pale);border-color:var(--line);padding:30px}.practice-caption{color:var(--muted)}.library-top input{border-radius:0;border:1px solid var(--line);background:var(--white);padding:13px;color:var(--ink)}.library-top>span{color:var(--muted)}.table-wrap{border:1px solid var(--line);border-radius:0;max-height:640px;overflow:auto;scrollbar-gutter:stable}table{background:var(--white);width:100%}thead{position:sticky;top:0;z-index:1;background:var(--pale)}th{font-size:11px;color:var(--muted);background:var(--pale);border-color:var(--line);letter-spacing:.6px}td{border-color:var(--line);color:var(--muted);font-size:12px}td strong{color:var(--ink);font-size:14px}td span{color:var(--muted)}.bar-track{background:var(--pale);border-radius:0}.bar-fill{background:var(--blue);border-radius:0}.bar-row{color:var(--muted)}.method-card,.finding-card,.evidence-card{border-radius:0;box-shadow:none;background:var(--pale);border-color:var(--line)}.closing{border-radius:0;background:var(--blue);color:var(--white)}footer{background:var(--pale);border-top:2px solid var(--ink);padding:30px 4.5%;color:var(--muted)}.footer-brand{color:var(--ink);font-weight:700}.footer-brand span{color:var(--muted)}footer button{color:var(--blue)}
.interview-app{max-width:none;margin:0 0 72px;padding:0}.interview-intro{text-align:left;max-width:none;margin:0;padding:56px 0 38px;border-bottom:2px solid var(--ink);display:grid;grid-template-columns:1.15fr 1fr;column-gap:7%}.interview-intro>.section-kicker{grid-column:1/-1}.interview-intro h1{font-family:var(--font-body);font-size:clamp(44px,5vw,72px);letter-spacing:-2.5px;line-height:1.13;color:var(--ink);margin:26px 0 0;grid-row:2/5}.interview-intro>p{font-size:14px;color:var(--muted);margin-top:26px}.interview-callout{border-radius:0;border:0;border-left:3px solid var(--blue);background:var(--pale);color:var(--muted);margin:12px 0 0;padding:16px 18px}.interview-intro .interview-evaluation{font-size:11px;margin-bottom:0}.interview-results .result-heading h2{color:var(--ink);font-size:30px}.interview-results .result-heading p{color:var(--muted)}.interview-view-switch{margin:18px 0}.interview-cards{gap:20px}.interview-card-head h3{font-size:22px;color:var(--ink);letter-spacing:-.5px}.interview-card-head p{color:var(--muted)}.interview-dates{border-color:var(--line);color:var(--muted)}.interview-dates summary,.answer-steps summary{color:var(--blue)}.interview-question{grid-template-columns:36px minmax(0,1fr);gap:14px}.question-number{border-radius:0;background:var(--blue);color:var(--white)}.interview-option{border-radius:0;background:var(--pale);padding:20px}.interview-prompt{color:var(--ink);font-size:16px;line-height:1.7}.answer-label{color:var(--blue);font-size:10px;margin:18px 0 9px}.model-answer{color:var(--ink);font-size:15px;line-height:1.85;max-width:74ch}.answer-steps,.answer-steps p{color:var(--muted)}.option-tag{color:var(--blue)}.interview-results .empty,.empty{border-radius:0;background:var(--pale);color:var(--muted)}
#practice-dialog{border-radius:0;border-color:var(--line);background:var(--white)}#practice-dialog::backdrop{background:#102342b8;backdrop-filter:blur(3px)}.exam-header{background:var(--blue);color:var(--white)}.exam-header button{border-radius:0;border-color:#ffffff80;color:var(--white)}.scenario,.association-context,.practice-material{border-radius:0;background:var(--pale);border-color:var(--line);border-left-color:var(--blue);color:var(--ink)}.exam-orb{background:var(--pale);border-color:var(--line);color:var(--blue);border-radius:0}.exam-orb.responding{background:var(--blue);color:var(--white)}.exam-progress{border-radius:0;background:var(--pale)}.exam-progress>div{background:var(--blue)}.exam-rules,.review-audios span,#practice-step,#practice-hint,.answer-review h3{color:var(--muted)}.review-banner{border-radius:0;background:var(--pale);border-color:var(--line)}.review-banner span{color:var(--muted)}.practice-source{color:var(--blue)}
@media(max-width:1050px){.topbar nav{gap:18px}.hero{gap:5%}.workspace,.interview-workspace{grid-template-columns:250px minmax(0,1fr);gap:26px}.swiss-task-poster{padding:24px;min-height:410px}.topic-main{flex-wrap:wrap}.topic-actions{max-width:none;justify-content:flex-start;margin-left:45px}.interview-intro{column-gap:5%}.brand{font-size:19px}}
@media(max-width:760px){.topbar{padding:18px 5%;min-height:88px;flex-wrap:wrap}.topbar .experiment{display:none}.topbar nav{width:100%;justify-content:space-between;gap:8px}.topbar nav a{font-size:11px;padding:6px 0}.brand{font-size:21px}.brandmark{height:30px}main{padding:0 5%}.task-switch{padding:20px 0;flex-wrap:wrap;gap:0}.task-switch>span{width:100%;margin:0 0 10px}.task-switch button{flex:1;padding:12px 10px;font-size:12px}.hero{grid-template-columns:1fr;padding:35px 0 38px;gap:28px}h1{font-size:49px;letter-spacing:-2px;margin:20px 0}.swiss-task-poster{min-height:330px;padding:22px}.poster-task{grid-template-columns:.75fr 1fr;padding:20px 0}.poster-task strong{font-size:92px;letter-spacing:-5px}.poster-task>div{font-size:24px}.poster-heading{font-size:10px}.poster-heading span{font-size:9px}.hero-bottom{margin-top:20px}.workspace,.interview-workspace{grid-template-columns:1fr;gap:28px;padding-top:28px}.controls,.interview-controls{position:static;padding:22px}.interview-controls{display:flex;flex-direction:column;gap:10px}.topic-card,.interview-card{padding:20px 16px}.topic-main{gap:12px}.topic-info{min-width:0;flex:1}.topic-title{font-size:17px}.topic-actions{margin-left:38px}.result-heading h2,.interview-results .result-heading h2{font-size:24px}.result-heading{align-items:flex-start}.result-toolbar{gap:12px;flex-wrap:wrap}.filter-search{min-width:0}.data-strip{flex-wrap:wrap;gap:8px}.data-strip strong{font-size:16px}.practice-hub,.evidence,.library{padding:38px 0}.section-heading h2{font-size:26px}.practice-launch{padding:22px}.interview-intro{display:block;padding:35px 0 28px}.interview-intro h1{font-size:48px;margin:20px 0}.interview-intro>p{font-size:14px}.interview-card-head h3{font-size:19px}.interview-question{grid-template-columns:27px minmax(0,1fr);gap:9px}.question-number{width:26px;height:26px;font-size:11px}.interview-option{padding:16px 13px}.interview-prompt{font-size:15px}.model-answer{font-size:14px;line-height:1.85}.table-wrap{max-height:520px}footer{padding:24px 5%;gap:16px;flex-wrap:wrap}.exam-body{padding:24px 20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
@media(forced-colors:active){*{scrollbar-color:auto}.swiss-task-poster,.question-number{border:1px solid CanvasText}.task-switch button.selected,.size-switch button.selected{outline:2px solid Highlight}}

/* Task selection follows the introductory content; remains the first control in Task 2. */
.task-switch{padding:24px 0 30px;border-top:1px solid var(--line);border-bottom:0}.hero{padding-bottom:46px}body[data-task="interview"] .task-switch{border-top:0;border-bottom:1px solid var(--line);padding-bottom:24px}
@media(max-width:760px){.hero{padding-bottom:28px}.task-switch{padding:20px 0 26px}}

/* Integrated TOEFL writing section and outer subject selector. */
.section-switch{display:flex;align-items:center;gap:10px;max-width:1600px;margin:0 auto;padding:20px 4.5%;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-switch>span{margin-right:10px;color:var(--muted);font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.section-switch button{min-height:42px;padding:0 19px;border:1px solid var(--line);background:transparent;color:var(--ink);font:inherit;cursor:pointer}
.section-switch button.selected{border-color:var(--blue);background:var(--blue);color:#fff}
.writing-app{max-width:1600px;margin:0 auto;padding:48px 4.5% 88px}
.writing-app[hidden]{display:none}
.writing-intro{max-width:760px;padding:12px 0 36px}
.writing-intro h2{margin:18px 0 20px;font-size:clamp(40px,5vw,68px);line-height:1.06;letter-spacing:-.055em;font-weight:650}
.writing-intro>p{max-width:650px;color:var(--muted);font-size:16px;line-height:1.8}
.writing-intro>.writing-data-note{max-width:760px;margin-top:14px;padding:12px 16px;border-left:2px solid var(--blue);background:var(--pale);font-size:12px;line-height:1.7}
.writing-workspace{display:grid;grid-template-columns:minmax(250px,300px) minmax(0,1fr);gap:44px;border-top:1px solid var(--line);padding-top:28px}
.writing-controls{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.writing-controls>label{margin-top:13px;color:var(--ink);font-size:13px;font-weight:600}
.writing-controls select{min-height:46px;width:100%;padding:0 12px;border:1px solid var(--line);background:#fff;color:var(--ink);font:inherit}
.writing-scope{margin:12px 0 0;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;line-height:1.7}
.writing-type-switch button{flex:1}
.writing-view-switch{margin:18px 0 20px}
.writing-results .filter-search{max-width:none;margin-bottom:20px}
.writing-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 30px;border-top:1px solid var(--line)}
.writing-card{padding:23px 0 25px;border-bottom:1px solid var(--line);min-width:0}
.writing-card-head{display:flex;align-items:flex-start;gap:14px}
.writing-card-head .rank{display:grid;place-items:center;flex:none;width:38px;height:38px;border:1px solid var(--line);color:var(--blue);font-size:12px}
.writing-card-head h3{margin:0 0 8px;font-size:19px;line-height:1.35;letter-spacing:-.02em}
.writing-type-tag{color:var(--muted);font-size:10px;letter-spacing:.13em}
.writing-dates{margin:17px 0 12px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.writing-dates summary,.writing-answer summary{padding:11px 0;color:var(--blue);font-size:12px;font-weight:600;cursor:pointer}
.writing-dates .dates{display:flex;flex-wrap:wrap;gap:7px;padding:0 0 12px}
.writing-prompt h4{margin:15px 0 7px;font-size:11px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.writing-prompt p{margin:0;color:var(--ink);font-size:14px;line-height:1.75}
.writing-answer{margin-top:11px;border-top:1px solid var(--line)}
.writing-answer .answer-label{margin:0 0 8px;color:var(--muted);font-size:11px}
.writing-answer-text{margin:0;color:#293544;font-size:14px;line-height:1.82;white-space:pre-line}
body[data-section="writing"] .task-switch,body[data-section="writing"] .data-strip,body[data-section="writing"] #predictor,body[data-section="writing"] #practice,body[data-section="writing"] #evidence,body[data-section="writing"] #library,body[data-section="writing"] #interview-app{display:none!important}
body[data-section="writing"] .topbar nav{display:none}
body[data-section="writing"] .hero{padding-bottom:36px}
body[data-section="writing"] .hero .hero-bottom{display:none}
@media(max-width:850px){.writing-workspace{grid-template-columns:1fr;gap:28px}.writing-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:end}.writing-controls>label{grid-column:1/-1}.writing-scope{grid-column:1/-1}.writing-cards{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.section-switch{padding:16px 5%;gap:7px}.section-switch>span{margin-right:2px}.section-switch button{padding:0 13px}.writing-app{padding:32px 5% 58px}.writing-intro{padding-bottom:24px}.writing-intro h2{font-size:42px}.writing-workspace{padding-top:20px}.writing-controls{grid-template-columns:1fr}.writing-controls>label{grid-column:auto}.writing-scope{grid-column:auto}.writing-cards{grid-template-columns:1fr}.writing-card{padding:19px 0 22px}}

/* Four top-level TOEFL subjects; each reveals its own task level. */
.section-switch{padding-left:0;padding-right:0;gap:0;border-top:2px solid var(--ink)}.section-switch>span{margin-right:26px;font-size:11px;font-weight:700;letter-spacing:1px;color:var(--muted)}.section-switch button{flex:1;min-height:54px;font-weight:700;font-size:16px;border-radius:0;margin-left:-1px}.section-switch button.selected{background:var(--blue);border-color:var(--blue);color:#fff}.unavailable-app{margin:0 0 70px;padding:52px 0 70px;border-top:1px solid var(--line);border-bottom:2px solid var(--ink)}.unavailable-app[hidden]{display:none}.unavailable-app h2{margin:20px 0 12px;font-size:clamp(32px,4vw,52px);letter-spacing:-.04em}.unavailable-app p{max-width:620px;color:var(--muted);line-height:1.85}.swiss-task-poster[hidden]{display:none}
body[data-section="writing"] .task-switch,body[data-section="writing"] .data-strip,body[data-section="writing"] #predictor,body[data-section="writing"] #practice,body[data-section="writing"] #evidence,body[data-section="writing"] #library,body[data-section="writing"] #interview-app{display:none!important}
body[data-section="listening"] .task-switch,body[data-section="listening"] .data-strip,body[data-section="listening"] #predictor,body[data-section="listening"] #practice,body[data-section="listening"] #evidence,body[data-section="listening"] #library,body[data-section="listening"] #interview-app,body[data-section="listening"] #writing-app{display:none!important}
body[data-section="reading"] .task-switch,body[data-section="reading"] .data-strip,body[data-section="reading"] #predictor,body[data-section="reading"] #practice,body[data-section="reading"] #evidence,body[data-section="reading"] #library,body[data-section="reading"] #interview-app,body[data-section="reading"] #writing-app{display:none!important}
body[data-section="writing"] .hero,body[data-section="listening"] .hero,body[data-section="reading"] .hero{padding-bottom:36px}body[data-section="writing"] .hero .hero-bottom,body[data-section="listening"] .hero .hero-bottom,body[data-section="reading"] .hero .hero-bottom{display:none}
@media(max-width:760px){.section-switch{padding:14px 0 18px;gap:0;flex-wrap:wrap}.section-switch>span{width:100%;margin:0 0 10px}.section-switch button{min-height:48px;padding:10px 5px;font-size:14px}.unavailable-app{padding:34px 0 46px}}

body[data-section="listening"] .topbar nav,body[data-section="reading"] .topbar nav{display:none}

.subject-intro{max-width:none;padding:46px 0 34px;border-bottom:2px solid var(--ink)}.subject-intro h2{margin:18px 0 12px;font-size:clamp(38px,5vw,68px);letter-spacing:-.05em}.subject-intro>p{max-width:760px;color:var(--muted);font-size:15px;line-height:1.8}.subject-coverage{margin-top:18px;padding:12px 16px;border-left:2px solid var(--blue);background:var(--pale);font-size:12px!important}.subject-workspace{display:grid;grid-template-columns:minmax(240px,300px) minmax(0,1fr);gap:44px;padding:30px 0 60px}.subject-controls{display:flex;flex-direction:column;gap:12px;align-items:stretch}.subject-controls>label{margin-top:12px;color:var(--ink);font-size:13px;font-weight:600}.subject-controls select{min-height:46px;width:100%;padding:0 12px;border:1px solid var(--line);background:var(--white);color:var(--ink);font:inherit}.subject-kinds{display:flex;flex-wrap:wrap}.subject-kinds button{flex:1 1 100px}.subject-results>[role=group]{margin:18px 0}.subject-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px;border-top:1px solid var(--line)}.subject-card{padding:22px 0;border-bottom:1px solid var(--line)}.subject-card h3{margin:0 0 8px;font-size:19px}.subject-card .subject-meta{color:var(--muted);font-size:11px}.subject-card p{color:var(--ink);font-size:14px;line-height:1.75}.subject-card details{border-top:1px solid var(--line);margin-top:12px}.subject-card summary{padding:10px 0;cursor:pointer}.subject-cards:empty{border-top:0}.subject-workspace .empty{grid-column:1/-1}
@media(max-width:850px){.subject-workspace{grid-template-columns:1fr;gap:28px}}@media(max-width:600px){.subject-intro{padding:34px 0 24px}.subject-workspace{padding-top:22px}.subject-cards{grid-template-columns:1fr}}

/* Writing follows the same task-first flow as speaking. */
.writing-task-step{padding:24px 0 30px;border-bottom:1px solid var(--line)}
.writing-step-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:16px}
.writing-step-heading h2{margin:6px 0 0;font-size:24px;letter-spacing:-.03em}
.writing-step-heading>p,.writing-view-row>p{max-width:440px;margin:0;color:var(--muted);font-size:12px;line-height:1.7}
.writing-type-switch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.writing-type-switch button{display:grid;grid-template-columns:44px minmax(0,1fr) 24px;align-items:center;gap:16px;min-height:88px;padding:14px 18px;border:1px solid var(--line);background:var(--white);color:var(--ink);text-align:left;cursor:pointer}
.writing-type-switch button.selected{border:2px solid var(--blue);background:var(--pale);color:var(--ink)}
.writing-task-number{font:700 28px/1 Arial,sans-serif;color:var(--blue)}
.writing-task-copy{display:grid;gap:5px}
.writing-task-copy strong{font-size:19px}
.writing-task-copy small{color:var(--muted);font-size:12px}
.writing-task-arrow{font-size:18px;color:var(--blue)}
.writing-view-row{display:flex;justify-content:space-between;align-items:end;gap:24px;padding:24px 0 0}
.writing-view-switch{margin:10px 0 0}
.writing-view-switch button{min-width:132px}
.writing-workspace{margin-top:20px}
.writing-controls[hidden]{display:none!important}
.writing-workspace.library-mode{display:block;border-top:1px solid var(--line)}
.writing-workspace.library-mode .writing-results{max-width:none}
.writing-workspace.library-mode .writing-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:760px){.writing-step-heading,.writing-view-row{align-items:flex-start;flex-direction:column;gap:10px}.writing-type-switch{grid-template-columns:1fr}.writing-type-switch button{min-height:76px}.writing-view-switch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));width:100%}.writing-view-switch button{min-width:0}.writing-workspace.library-mode .writing-cards{grid-template-columns:1fr}}

/* Keep discussion prompts compact; viewpoints are available on demand. */
.writing-viewpoints{display:block;margin-top:15px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.writing-viewpoints>summary{padding:11px 0;color:var(--blue);font-size:12px;font-weight:650;cursor:pointer;list-style:none}
.writing-viewpoints>summary::-webkit-details-marker{display:none}
.writing-viewpoints>summary::after{content:'＋';float:right;color:var(--muted)}
.writing-viewpoints[open]>summary::after{content:'−'}
.viewpoints-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;padding:0 0 13px}
@media(max-width:650px){.viewpoints-grid{grid-template-columns:1fr}}

/* Complete writing task text shares the existing reading typography. */
.writing-prompt>p,.writing-response-instructions{white-space:pre-line;overflow-wrap:anywhere}.writing-response-instructions{font-size:14px;color:var(--muted);line-height:1.7}.writing-source-note{padding:12px 16px;border-left:3px solid var(--blue);background:var(--pale);line-height:1.7}.writing-variant-label{padding-top:20px;border-top:1px solid var(--line)}.writing-resource p{line-height:1.85}
.writing-points{margin:20px 0;padding:16px 18px;background:var(--pale);border-left:2px solid var(--blue)}
.writing-points h4{margin:0 0 10px;color:var(--muted);font-size:12px;letter-spacing:.06em}.writing-points ol{margin:0;padding-left:22px}.writing-points li{padding:4px 0;font-size:14px;line-height:1.75}
.directory-link{margin-left:auto;color:var(--blue);font-size:13px;font-weight:700;white-space:nowrap;text-decoration:none}.directory-link:hover{text-decoration:underline}
.question-directory{margin:0 0 12px;border-bottom:1px solid var(--line);scroll-margin-top:110px}
.question-directory>summary{display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;padding:20px 0;list-style:none;color:var(--ink)}
.question-directory>summary::-webkit-details-marker{display:none}.question-directory>summary:after{content:'展开 +';color:var(--blue);font-size:12px;font-weight:700;white-space:nowrap}.question-directory[open]>summary:after{content:'收起 −'}
.question-directory>summary strong{font-size:18px}.question-directory>summary small{margin-left:20px;font-size:12px;color:var(--muted)}
.directory-panel{padding-bottom:26px}.directory-tools{display:flex;gap:24px;align-items:center}.directory-tools .filter-search{flex:1}.directory-tools input{min-width:0;width:100%}.directory-tools p{font-size:12px;color:var(--muted);white-space:nowrap}.directory-tools button{border:0;background:none;color:var(--blue);font:inherit;font-size:12px;cursor:pointer;white-space:nowrap}
.directory-filters{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 22px}.directory-filters button{min-height:42px;padding:8px 14px}.directory-filters button span{margin-left:7px;opacity:.75;font-size:11px}
.directory-results{max-height:60vh;max-height:min(60vh,640px);overflow:auto;overscroll-behavior:contain;padding-right:12px;scrollbar-gutter:stable}
.directory-group{margin:0 0 24px}.directory-group h3{display:flex;gap:12px;align-items:center;margin:0;padding:14px 0;border-top:2px solid var(--ink);font-size:14px}.directory-group h3 span{color:var(--muted);font-size:12px;font-weight:400}.directory-group ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:32px;list-style:none;padding:0;margin:0}
.directory-entry{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:66px;padding:14px 10px;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none}.directory-entry:hover{background:var(--pale)}.directory-entry strong{display:block;font-size:14px;line-height:1.5;overflow-wrap:anywhere}.directory-entry small{display:block;margin-top:4px;font-size:11px;color:var(--muted)}.directory-entry>span:last-child{color:var(--blue)}
[id^="question-"]{scroll-margin-top:110px}[id^="question-"]:focus{outline:2px solid var(--blue);outline-offset:5px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:760px){.topbar .directory-link{margin-left:auto;font-size:12px}.question-directory>summary small{display:block;margin:5px 0 0}.directory-tools{align-items:stretch;flex-direction:column;gap:0}.directory-tools p{margin:10px 0 0}.directory-group ul{grid-template-columns:1fr}.directory-results{max-height:55vh;padding-right:6px}.directory-filters{gap:6px}.directory-filters button{padding:8px 10px;font-size:12px}.directory-entry{min-height:70px}}

@media(max-width:760px){.topbar .brand{order:0}.topbar .directory-link{order:1}.topbar nav{order:2}}

.directory-filters button[hidden]{display:none}.brandcn{letter-spacing:1.7px}@media(max-width:760px){.brand{font-size:20px}.brandcn{font-size:8px;letter-spacing:1.4px}}

/* Subject → task → task-specific features. No Repeat controls on the home page. */
[hidden]{display:none!important}
.home-link{margin-left:auto;color:var(--muted);font-size:12px}
.home-link:hover{color:var(--blue)}
.task-navigation{padding:0 0 22px;border-bottom:1px solid var(--line)}
.task-navigation>div{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.task-navigation-label{font-size:10px;letter-spacing:.12em;color:var(--muted);margin-right:10px}
.task-navigation a,.task-navigation button{font:inherit;font-size:13px;font-weight:700;color:var(--blue);padding:9px 0;background:none;border:0;border-bottom:2px solid transparent;min-height:44px}
.task-navigation a:hover,.task-navigation button:hover,.task-navigation button.selected{border-bottom-color:var(--blue)}
body[data-section="home"] .task-switch,body[data-section="home"] #writing-task-step,body[data-section="home"] #task-navigation,body[data-section="home"] #question-directory,body[data-section="home"] .data-strip,body[data-section="home"] #predictor,body[data-section="home"] #practice,body[data-section="home"] #evidence,body[data-section="home"] #library,body[data-section="home"] #interview-app,body[data-section="home"] #writing-app,body[data-section="home"] .closing,body[data-section="home"] #import-button{display:none!important}
body[data-section="home"] .hero{display:grid;grid-template-columns:1fr;min-height:440px}
body[data-section="home"] .hero-bottom{display:none}
body[data-section="speaking"] #writing-task-step,body[data-section="writing"] .closing{display:none!important}
body[data-section="writing"] .hero{display:grid}
body[data-section="writing"] .writing-app{padding-top:0}
#writing-task-step{padding:24px 0 30px;border-top:1px solid var(--line)}
.question-directory{margin-top:22px}
@media(max-width:760px){.topbar{gap:16px}.home-link{font-size:11px}.task-navigation>div{gap:12px 22px}.task-navigation-label{width:100%}.task-navigation{padding-bottom:14px}body[data-section="home"] .hero{min-height:350px}.topbar .directory-link{margin-left:0}#writing-task-step{padding-top:20px}}