/* Study2-aligned presentation; Study3 curriculum and interactions stay independent. */
:root{--teal:#0d9488;--ink:#1e293b;--muted:#64748b;--line:#e2e8f0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:#f1f5f9;color:var(--ink)}
html{scroll-behavior:smooth}body{font-size:13px;line-height:1.65;color:#1e293b;background:#f1f5f9;background-image:radial-gradient(1000px 400px at 85% -5%,#0d948812,transparent 60%),radial-gradient(800px 350px at 0 0,#0891b20f,transparent 55%)}
b,strong{font-weight:700}button:disabled{cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #14b8a6;outline-offset:3px}button,a{transition:background .16s,border-color .16s,box-shadow .16s}

/* One compact full-width course header, matching Study2's gradient and statistics. */
.course-hero{position:relative;isolation:isolate;overflow:hidden;color:#fff;background:linear-gradient(115deg,#115e59 0%,#0d9488 48%,#0e7490 100%)}
.course-hero:before{content:"";position:absolute;inset:0;z-index:-1;opacity:.14;background-image:radial-gradient(#ffffffe6 1px,transparent 1.6px);background-size:22px 22px}
.course-hero:after{content:"";position:absolute;right:-80px;top:-120px;width:380px;height:380px;z-index:-1;border-radius:50%;background:radial-gradient(circle,#5eead459,transparent 65%)}
.hero-inner{max-width:1560px;margin:auto;padding:20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px 24px}.hero-brand{display:flex;align-items:center;gap:12px;min-width:0}.hero-brand>div{min-width:0}.hero-brandmark{width:44px;height:44px;display:grid;place-items:center;flex-shrink:0;border-radius:16px;background:#ffffff29;border:1px solid #ffffff40}.hero-brandmark svg{width:24px;height:24px}.hero-title-line{display:flex;align-items:center;flex-wrap:wrap;gap:8px}.hero-title-line h1{font-size:18px;line-height:1.5;font-weight:900;letter-spacing:.035em;color:#fff}.hero-topic{border-radius:30px;padding:3px 9px;background:#ffffff2e;color:#ecfeff;font-size:10.5px;font-weight:700}.hero-brand p{margin-top:3px;font-size:12px;color:#ecfeffd9;line-height:1.7}.hero-stats{display:flex;align-items:center;gap:10px;margin-left:auto}.stat-chip{min-width:78px;padding:7px 14px;border:1px solid #ffffff38;border-radius:12px;background:#ffffff24;backdrop-filter:blur(6px);text-align:center}.stat-chip b{display:block;font-size:18px;font-weight:900;line-height:1.25;color:#fff}.stat-chip span{font-size:10.5px;color:#ecfeff}
.page-shell{max-width:1560px;padding:14px 16px 110px}.workbench-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 14px}.workbench-toolbar>p{font-size:12px;color:#475569;font-weight:600}.header-actions{display:flex;align-items:center;gap:7px;flex-wrap:wrap}.header-actions button{display:inline-flex;align-items:center;justify-content:center;gap:5px;border:1px solid #99dcd0;border-radius:8px;background:#fff;padding:6px 10px;font-size:11px;font-weight:600;color:#0f766e;white-space:nowrap}.header-actions button:hover{background:#f0fdfa;border-color:#0d9488}.header-actions svg{width:14px;height:14px}.header-actions .feedback-toggle{background:#0d9488;border-color:#0d9488;color:#fff}.header-actions .feedback-toggle:hover{background:#0f766e}

/* The same 25 / 45 / 30 workspace and independent side columns as Study2. */
.current-topic-label{display:flex;align-items:center;flex-wrap:wrap;gap:8px}.current-topic-label>span{font-size:10.5px;color:#64748b}.current-topic-label>b{font-size:12px;color:#0f766e;background:#f0fdfa;border:1px solid #99dcd0;padding:3px 9px;border-radius:999px}.current-topic-label>small{font-size:10px;color:#64748b}
.topic-focus-panel{border-color:#99dcd0}.topic-focus-body{padding:14px 16px 16px}.topic-focus-body>p{font-size:12px;color:#475569;line-height:1.9}.topic-keypoints{display:flex;flex-direction:column;gap:9px;margin:16px 0}.topic-keypoints>div{display:flex;align-items:flex-start;gap:10px;border:1px solid #e2e8f0;background:#f8fafc;border-radius:10px;padding:11px}.topic-keypoints>div>span{display:grid;place-items:center;width:23px;height:23px;flex-shrink:0;background:#ccfbf1;color:#0f766e;border-radius:7px;font-size:11px;font-weight:800}.topic-keypoints p{font-size:12px;color:#334155;line-height:1.85}.topic-focus-hook{display:flex;align-items:flex-start;gap:8px;background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:11px;font-size:12px;color:#92400e}.topic-focus-hook svg{width:15px;height:18px}.topic-focus-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:15px}.topic-focus-actions button{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#0d9488,#0f766e);border:0;border-radius:9px;color:#fff;font-size:12px;font-weight:600;padding:9px 12px}.topic-focus-actions button+button{background:none;color:#0f766e;padding:0}.topic-focus-actions svg{width:15px;height:15px}.lesson-context{display:inline-block;margin-bottom:6px;font-size:10.5px;color:#0f766e;font-weight:600}#source-card,.quiz-panel,#reasoning,#diagnosis{scroll-margin-top:16px}
.workspace{display:grid;grid-template-columns:minmax(0,25fr) minmax(0,45fr) minmax(0,30fr);gap:16px;align-items:start}.left-column,.middle-column,.right-column{display:flex;flex-direction:column;gap:16px;min-width:0}.panel{background:#fff;border:1px solid #0f172a12;border-radius:16px;box-shadow:0 1px 2px #0f172a0a,0 6px 20px -10px #0f172a14;overflow:hidden;min-width:0;flex-shrink:0}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:16px 16px 0;border:0;background:#fff}.panel-head>div{display:flex;flex-direction:column;min-width:0}.panel h2{font-size:13.5px;font-weight:800;color:#0f172a;letter-spacing:.01em;line-height:1.6;gap:8px}.panel h2 svg{width:28px;height:28px;padding:6px;flex-shrink:0;border-radius:9px;background:linear-gradient(135deg,#f0fdfa,#ccfbf1);color:#0f766e;box-shadow:inset 0 0 0 1px #0d94882e}.overline{order:2;font-size:10px;font-weight:400;letter-spacing:.025em;color:#64748b;margin:3px 0 0;line-height:1.6}.panel-intro{padding:5px 16px 12px;font-size:11px;color:#64748b}.tiny-pill,.instant-badge{font-size:10.5px;font-weight:700;padding:3px 8px;border:1px solid #99f6e4;border-radius:30px;color:#0f766e;background:#f0fdfa;line-height:1.5}.icon-button{width:27px;height:27px;background:#f8fafc;color:#64748b;border:1px solid #e2e8f0;border-radius:8px}.icon-button svg{width:14px;height:14px}.map-panel .mermaid-wrap{margin:10px 12px 14px;padding:0;min-height:140px;max-height:235px;overflow:auto;background:#fff;border:0;color:#475569;font-size:12px}.map-panel .mermaid-wrap svg{width:100%;height:auto;max-height:235px}
.topic-list{padding:0 10px 10px}.topic-item{display:flex;align-items:center;gap:9px;width:100%;padding:10px 8px;margin-bottom:4px;border-radius:12px;background:transparent;border:1px solid transparent;text-align:left}.topic-item:hover{background:#f8fafc;border-color:#e2e8f0}.topic-item.active{background:linear-gradient(90deg,#f0fdfa,#ecfeff);border-color:#0d948859;box-shadow:0 2px 10px -4px #0d948840}.topic-number{display:grid;place-items:center;flex-shrink:0;width:24px;height:24px;border-radius:8px;background:#f1f5f9;font-size:12px;font-weight:800;color:#64748b}.topic-item.active .topic-number{background:#0d9488;color:#fff;box-shadow:0 2px 6px #0d948866}.topic-copy strong{font-size:12.5px;font-weight:700;line-height:1.6;color:#1e293b}.topic-item.active .topic-copy strong{color:#134e4a}.topic-status{display:inline-flex;align-items:center;gap:4px;padding:2px 6px;flex-shrink:0;white-space:nowrap;font-size:10px;font-weight:700;border-radius:30px;color:#64748b;background:#f8fafc;box-shadow:inset 0 0 0 1px #e2e8f0}.topic-status.teal{background:#ecfdf5;color:#047857;box-shadow:inset 0 0 0 1px #a7f3d0}.topic-status.amber{background:#fffbeb;color:#b45309;box-shadow:inset 0 0 0 1px #fde68a}.topic-status .status-dot{height:5px;width:5px;background:currentColor;box-shadow:none}.knowledge-footer{font-size:10.5px;color:#64748b;background:#f8fafc;border-color:#e2e8f0;padding:10px 16px}

/* All source text remains accessible; textbook and guideline anchors stay intact. */
.source-panel .panel-head{padding:16px 16px 0;background:#fff;border:0}.source-body{padding:12px 16px 16px}.section-index{font-size:10px;color:#0f766e;font-weight:700}.source-body h3{font-size:14px;font-weight:800;color:#0f172a;line-height:1.75}.source-summary{font-size:12px;line-height:1.85;color:#475569;margin:10px 0 14px;padding:9px 11px;background:#f8fafc;border-left:3px solid #0d9488;border-radius:0 8px 8px 0}.table-scroll{border-radius:8px}.source-table{font-size:11px;color:#475569}.source-table th{font-size:11px;background:linear-gradient(90deg,#0f766e,#0d9488);color:#fff;font-weight:700;padding:7px;white-space:normal}.source-table td{padding:7px;color:#475569;border:1px solid #e8eef2}.source-table tr:nth-child(even) td{background:#f8fafc}.exam-anchor{font-size:11px;line-height:1.85;background:#fffbeb;color:#92400e;border:1px solid #fde68a;border-radius:9px;padding:10px;margin-top:12px}.source-details summary{font-size:11.5px;font-weight:700;color:#0f766e}.anchor-label{font-size:10px;color:#0f766e}.textbook-anchor,.guideline-anchor{padding:10px;border:1px solid #fde68a;border-left:3px solid #d97706;border-radius:8px;background:#fffbeb}.textbook-anchor b,.guideline-anchor b{font-size:11px;font-weight:700;color:#92400e}.textbook-anchor span,.guideline-anchor span{font-size:11px;color:#92400e;line-height:1.85}.textbook-anchor small,.guideline-anchor small{font-size:10px;color:#0f766e}.guideline-anchor{background:#f0fdfa;border-color:#99f6e4;border-left-color:#0d9488}.guideline-anchor b,.guideline-anchor span{color:#0f766e}.editorial-method{font-size:10.5px;color:#64748b;background:#f8fafc}.source-reference a{font-size:11.5px;color:#0f766e;font-weight:600}.source-reference small{font-size:10.5px;color:#64748b;line-height:1.8}.source-reference blockquote{font-size:11px;color:#475569}.version-comparison{background:#f8fafc;border-color:#e2e8f0}.version-comparison h4,.version-comparison>div>b{font-size:11.5px;color:#0f766e;font-weight:700}.version-comparison>p,.version-comparison>div>p{font-size:11.5px;color:#475569;line-height:1.85}

/* Study2's teal report band, pill presets and color-coded interpretation. */
.sandbox-panel{border:1.5px solid #0d948847;background:linear-gradient(180deg,#fff 0%,#fbfefe 60%,#f6fdfc 100%)}.sandbox-panel>.panel-head{padding:14px 16px 0;background:linear-gradient(90deg,#0f766e,#0d9488);color:#fff;border:0}.sandbox-panel>.panel-head>div{display:block}.sandbox-panel>.panel-head h2{font-size:15px;font-weight:900;color:#fff}.sandbox-panel>.panel-head h2 svg{width:20px;height:20px;padding:0;background:none;color:#fff;box-shadow:none;border-radius:0}.sandbox-panel>.panel-head .overline{display:none}.sandbox-panel>.panel-intro{position:relative;padding:3px 16px 21px;margin-bottom:14px;background:linear-gradient(90deg,#0f766e,#0d9488);font-size:11px;color:#ecfeffcc}.sandbox-panel>.panel-intro:after{content:"";height:6px;position:absolute;left:16px;right:16px;bottom:7px;opacity:.32;background:repeating-linear-gradient(90deg,#115e59 0 2px,transparent 2px 5px,#115e59 5px 6px,transparent 6px 9px,#115e59 9px 12px,transparent 12px 15px)}.sandbox-panel .instant-badge{border:1px solid #ffffff40;background:#ffffff24;color:#fff;font-size:10px}.sandbox-panel .instant-badge span{background:#99f6e4}.case-presets{display:flex;flex-wrap:wrap;gap:6px;padding:0 16px 13px}.preset-caption{font-size:11px;font-weight:700;color:#64748b;align-self:center;margin-right:3px}.preset{display:inline-flex;align-items:center;min-height:28px;border:1px solid #99f6e4;border-radius:9999px;padding:4px 11px;font-size:11px;font-weight:600;color:#0f766e;background:#fff;line-height:1.6}.preset:hover{background:#f0fdfa;border-color:#0d9488}.preset.selected{background:#0d9488;color:#fff;border-color:#0d9488;box-shadow:0 2px 8px #0d948859}
.lab-sheet{margin:0 16px;padding:14px;border:1px solid #e2e8f0;border-radius:12px;background:#fff;box-shadow:none}.lab-title h3{font-size:14px;font-weight:800;color:#0f172a;letter-spacing:0}.lab-title p{font-size:8px;letter-spacing:.07em;color:#64748b}.lab-cross{color:#0d9488}.sample-stamp{font-size:9px;color:#0f766e;border-color:#6fb8ae;background:#f0fdfa}.lab-meta{font-size:10px;color:#64748b;gap:12px}.lab-meta b{color:#334155}.lab-colhead{font-size:10px;color:#64748b;background:#f8fafc;padding:5px 0}.marker-row{display:grid;grid-template-columns:minmax(0,1fr) 65px 42px;gap:8px;padding:12px 0;border-color:#e2e8f0}.marker-row:hover{background:#f0fdfa}.marker-positive{background:#fff}.marker-name{gap:9px}.marker-order{width:20px;height:20px;background:#f1f5f9;color:#64748b;font-size:11px;font-weight:700;border-radius:6px}.marker-name b{font:700 13.5px Arial,sans-serif;color:#1e293b}.marker-name small{font-size:11px;color:#64748b}.result-symbol{font-size:11px;font-weight:800}.result-symbol.positive{color:#e11d48}.result-symbol.negative{color:#64748b}.marker-row .toggle{border-color:#94a3b8}.marker-row .toggle:checked{border-color:#e11d48}.lab-extra{font-size:11px;color:#475569;gap:10px;flex-wrap:wrap}.lab-extra .select{font-size:11px;color:#334155;height:29px;min-height:29px;background:#fff;border:1px solid #cbd5e1;border-radius:7px}.lab-footnote{font-size:10.5px;color:#64748b;line-height:1.85}
.interpretation{margin:13px 16px;padding:14px 15px;border:1px solid #a7f3d0;border-left:4px solid #047857;border-radius:14px;background:#ecfdf5}.interpretation .overline{font-size:10.5px;font-weight:700;color:inherit;order:0}.interpretation h3{font-size:15px;font-weight:900;color:inherit;line-height:1.7;margin:8px 0 5px}.interpretation>p{font-size:12px;color:#334155;line-height:1.85}.verdict-high{background:#fff1f2;color:#be123c;border-color:#fecdd3;border-left-color:#be123c}.verdict-medium{background:#fffbeb;color:#b45309;border-color:#fde68a;border-left-color:#b45309}.verdict-low{background:#ecfdf5;color:#047857;border-color:#a7f3d0;border-left-color:#047857}.risk-badge{font-size:10px;font-weight:700;padding:3px 7px;border-radius:30px;border:1px solid currentColor;line-height:1.5;background:#fff}.risk-badge.high{color:#be123c;background:#fff;border-color:#fda4af}.risk-badge.medium{color:#b45309;background:#fff;border-color:#fcd34d}.risk-badge.low{color:#047857;background:#fff;border-color:#6ee7b7}.breakpoint{font-size:12px;color:#334155;border-top-color:#64748b33;margin-top:10px;padding-top:10px}.breakpoint b{color:#0f172a}.breakpoint svg{color:#d97706}.source-inline{font-size:10.5px;color:#475569}.explain-button{margin:0 16px 16px;width:calc(100% - 32px);background:linear-gradient(135deg,#0d9488,#0f766e);border:0;border-radius:10px;font-size:12.5px;font-weight:700;color:#fff;min-height:42px;height:auto;padding:10px 14px;box-shadow:0 3px 10px -3px #0d948880}.explain-button:hover{background:#0f766e;box-shadow:0 6px 16px -4px #0d94888c}.isolated-alert{margin:0 16px 14px;padding:11px;background:#fffbeb;border-color:#fde68a;font-size:11px;color:#92400e}.isolated-alert b{font-size:11px;color:#92400e}

.correction-panel{border-color:#fde68a}.correction-toggle{padding:15px 16px;background:#fffbeb}.correction-toggle small{font-size:9px;color:#b45309}.correction-toggle b{font-size:13.5px;font-weight:800;color:#92400e}.correction-toggle em{font-size:10px;color:#b45309}.correction-symbol{background:#fef3c7;border-color:#fde68a;color:#b45309}.correction-toggle>svg{color:#b45309}.correction-list summary{font-size:12px;color:#92400e}.correction-list summary>span{font-size:10px;color:#b45309}.correction-list details>small{font-size:10.5px;color:#b45309}.correction-list details>p{font-size:12px;color:#475569;line-height:1.9}.correction-list details>button{font-size:10.5px;color:#0f766e}.correction-relevant summary b{color:#92400e}
.pbl-heading{padding:13px 16px}.pbl-heading h3{font-size:14px;color:#1e293b;font-weight:700}.pbl-heading p{font-size:11px;color:#64748b}.reveal-step{margin:0 16px 12px;border:1px solid #e2e8f0;border-radius:12px;position:relative}.step-heading{font-size:12.5px;font-weight:700;color:#1e293b;background:#fff;padding:13px}.step-index{display:grid;place-items:center;min-width:25px;height:25px;padding:0;border-radius:50%;background:#0d9488;color:#fff;font-size:11px;font-weight:800;box-shadow:0 0 0 3px #ccfbf1}.locked{opacity:1;border-color:#e2e8f0}.locked .step-heading{color:#64748b;background:#f8fafc}.locked .step-index{background:#e2e8f0;color:#64748b;box-shadow:none}.step-body,.step-body>p{font-size:12px;line-height:1.9;color:#475569}.thinking-question{font-size:12px;font-weight:700;color:#334155}.thinking-options button{font-size:11.5px;font-weight:600;color:#0f766e;border:1px solid #99f6e4;border-radius:9px;background:#fff;padding:9px}.thinking-options button:hover{background:#f0fdfa;border-color:#0d9488}.thinking-options .thinking-selected{color:#fff;background:#0d9488;border-color:#0d9488}.reason-feedback{font-size:11px;color:#0f766e}.step-next{font-size:11.5px;color:#0f766e;font-weight:700}.mechanism-timeline b{font-size:11.5px;color:#0f766e}.mechanism-timeline small{font-size:11.5px;color:#475569}.question-form{padding:16px;margin-top:13px;border-color:#e2e8f0}.question-form label{font-size:12px;color:#334155;font-weight:700}.question-form>div{border-color:#cbd5e1;background:#fff;border-radius:10px}.question-form .input{font-size:12px;color:#334155;background:#fff}.question-form .btn{background:#0d9488;color:#fff}.question-form small{font-size:10px;color:#64748b}

.progress-panel .panel-head{padding:16px 16px 0}.score-number{font-size:23px;font-weight:800;color:#0d9488}.score-number small{font-size:11px;color:#64748b}.radar-wrap{height:230px;padding:8px 12px}.radar-note{font-size:10px;color:#64748b}.radar-note>span:last-child{color:#64748b}.progress-caveat{font-size:10px;color:#64748b}.quiz-count{font-size:10.5px;font-weight:700;color:#0f766e}.collection-label{font-size:12px;color:#0f766e;font-weight:700;padding:12px 16px 0}.collection-label>span{font-size:10px;font-weight:400;color:#64748b}.quiz-meta{padding:12px 16px 0;font-size:10.5px;color:#64748b}.quiz-stem{padding:12px 16px 14px;font-size:12.5px;font-weight:600;line-height:1.85;color:#1e293b}.quiz-options{padding:0 16px;gap:8px}.quiz-options button{border:1.5px solid #e2e8f0;border-radius:12px;background:#fff;color:#334155;font-size:12.5px;line-height:1.6;padding:10px 12px;gap:10px;align-items:flex-start}.quiz-options button:hover:not(:disabled){border-color:#14b8a6;background:#fbfbfc;box-shadow:0 3px 10px -4px #0d948840}.quiz-options button:disabled{cursor:default}.option-letter{display:grid;place-items:center;width:22px;height:22px;flex-shrink:0;margin-top:1px;border:0;border-radius:7px;background:#f1f5f9;font-size:11px;font-weight:800;color:#64748b}.quiz-options .chosen{border-color:#14b8a6;background:#f0fdfa}.quiz-options .answer-correct{border-color:#10b981;background:#ecfdf5;color:#065f46}.answer-correct .option-letter{background:#059669;color:#fff;border:0}.quiz-options .answer-wrong{border-color:#f43f5e;background:#fff1f2;color:#9f1239}.answer-wrong .option-letter{background:#e11d48;color:#fff;border:0}.quiz-blueprint{font-size:10px;color:#64748b;background:#f8fafc;border-color:#e2e8f0;margin:12px 16px}.quiz-blueprint>b{font-size:10.5px;color:#475569}.quiz-blueprint>span{font-size:10.5px;color:#64748b}.quiz-actions{display:flex;gap:8px;flex-wrap:wrap;padding:13px 16px 16px}.next-quiz,.generate-button{font-size:11px;font-weight:600;min-height:34px;padding:7px 10px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:5px;line-height:1.65;flex:1}.next-quiz{color:#0f766e;background:#fff;border:1px solid #99f6e4}.generate-button{color:#fff;background:linear-gradient(135deg,#0d9488,#0f766e);border:0;box-shadow:0 3px 10px -3px #0d948859}.next-quiz:hover{background:#f0fdfa;border-color:#0d9488}.answer-success{background:#ecfdf5;border-color:#a7f3d0}.answer-success strong{font-size:12px;color:#047857}.answer-success p{font-size:12px;color:#475569}.answer-success button{font-size:11px;color:#0f766e}.inline-notice{font-size:11px;color:#64748b}

/* The same rose diagnosis signal as Study2, with Study3's detailed explanations. */
.diagnosis-panel{border:1.5px solid #fda4af;border-radius:12px;background:#fff5f6}.diagnosis-head{background:linear-gradient(90deg,#be123c,#e11d48);border:0;padding:12px 16px;gap:9px}.diagnosis-head>div{display:flex;flex-direction:column}.diagnosis-head .overline{font-size:9px;color:#ffe4e6;letter-spacing:.06em}.diagnosis-head h2{font-size:13px;font-weight:900;color:#fff}.diagnosis-icon{color:#fff;background:none;padding:0;border:0}.diagnosis-icon svg{width:20px;height:20px}.review-dot{background:#fda4af}.diagnosis-body{padding:14px 16px;color:#475569;font-size:12px;line-height:1.85}.diagnosis-body p{font-size:12px;color:#475569}.error-tag{background:#e11d48;color:#fff;font-size:10.5px;border:0;border-radius:30px;padding:3px 9px}.diagnosis-body h4{font-size:11px;font-weight:800;color:#be123c}.diagnosis-body h4 span{color:#9f1239}.locate-button{font-size:11px;font-weight:600;background:#fffbeb;color:#b45309;border-color:#fcd34d;border-radius:10px}.variant-button{font-size:11.5px;font-weight:700;background:linear-gradient(135deg,#0d9488,#0f766e);color:#fff;border:0;border-radius:10px}.review-tools button{font-size:10.5px;color:#0f766e}.study-note{color:#64748b;font-size:10.5px}.page-footer{font-size:10px;color:#64748b}.page-footer button{color:#0f766e}.compliance-bar{padding:10px 20px;background:#fffffff5;border-top:1px solid #e2e8f0;color:#64748b}.compliance-bar p{font-size:10.5px;color:#64748b;line-height:1.75}.compliance-bar svg{color:#d97706;width:16px;height:16px}

.demo-strip{margin-bottom:16px;border-color:#99dcd0}.demo-caption{font-size:12px;color:#0f766e;background:#f0fdfa;padding:12px 16px}.demo-caption>button{margin-left:auto;color:#64748b;font-size:12px}.demo-steps button{font-size:11px;color:#475569;background:#fff;border-color:#e2e8f0}.demo-steps button span{font-size:10px;color:#64748b}.demo-steps button.demo-current{background:#0d9488;color:#fff;border-color:#0d9488}.demo-current span{color:#ccfbf1!important}.demo-strip>p{font-size:10.5px;color:#64748b}.thinking-progress{border-color:#99dcd0;box-shadow:0 10px 40px #0f172a26}.thinking-progress>div:first-child{font-size:12px;color:#0f766e}.thinking-progress>div:first-child>span:last-child,.thinking-progress em{font-size:11px;color:#64748b}.thinking-progress>p{font-size:12px;color:#475569}.thinking-progress>small{font-size:10px;color:#64748b}.thinking-track{height:5px;background:#e2e8f0}.thinking-track>span{background:#0d9488}.toast-notice{font-size:12px;background:#0f172a;color:#fff}
.modal-box{color:#1e293b}.modal-box h2{font-size:22px;font-weight:800;color:#0f172a}.modal-box h3{font-size:15px;color:#0f172a}.modal-box>p{font-size:12px;color:#64748b}.feedback-modal form>label,.feedback-grid>label,.feedback-export>label,.feedback-modal legend{font-size:12px;color:#334155}.feedback-modal .input,.feedback-modal .textarea{font-size:13px;color:#334155;background:#fff;border-color:#cbd5e1;border-radius:9px}.feedback-modules>label{font-size:11px;color:#475569}.feedback-stars>label{font-size:12px;color:#b45309}.feedback-stars input:checked+span{color:#92400e;background:#fef3c7;border-color:#d97706;font-weight:700}.feedback-modal form>.feedback-consent{font-size:10.5px;color:#64748b}.feedback-submit{font-size:13px;background:#0d9488;color:#fff}.feedback-saved{background:#ecfdf5;color:#047857}.feedback-saved p{font-size:12px;color:#475569}.feedback-saved>span{font-size:10.5px}.feedback-export summary{font-size:11px;color:#64748b}.feedback-export p{font-size:10.5px;color:#64748b}

@media(min-width:1024px){.left-column,.right-column{position:sticky;top:16px;max-height:calc(100vh - 110px);overflow-y:auto;overflow-x:hidden;padding-bottom:8px;scrollbar-width:thin;scrollbar-color:#cbd5e1 transparent}.left-column::-webkit-scrollbar,.right-column::-webkit-scrollbar{width:5px}.left-column::-webkit-scrollbar-thumb,.right-column::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}}
@media(min-width:1550px){.panel h2{font-size:14px}.topic-copy strong{font-size:13px}.source-table{font-size:12px}.quiz-stem{font-size:13px}}
@media(min-width:1024px) and (max-width:1190px){.topic-item{gap:6px;padding:9px 6px}.topic-status{font-size:9px;padding:2px 4px}.topic-copy strong{font-size:11.5px}.topic-number{width:21px;height:21px;font-size:11px}.panel-head{padding-left:13px;padding-right:13px}.panel h2{font-size:12.5px}.source-panel .tiny-pill{display:none}.lab-sheet{padding:12px}.lab-title h3{font-size:12px}.sample-stamp{font-size:8px}.marker-name{gap:5px}.marker-name b{font-size:12.5px}.marker-name small{font-size:10px}.marker-row{grid-template-columns:minmax(0,1fr) 57px 38px;gap:5px}.result-symbol{font-size:10.5px}.lab-meta{font-size:9px;gap:8px}.lab-extra{font-size:10px}.sandbox-panel>.panel-head h2{font-size:13px}.quiz-options button{font-size:12px;padding:9px}.quiz-actions{flex-direction:column}.radar-wrap{height:210px}}
@media(max-width:1023px){.workspace{display:flex;flex-direction:column;gap:16px}.left-column,.middle-column,.right-column{width:100%;display:flex;flex-direction:column;position:static;max-height:none;overflow:visible;gap:16px}.diagnosis-panel{grid-column:auto;grid-row:auto}.hero-inner{padding:18px 20px}.hero-title-line h1{font-size:17px}.hero-brand p{font-size:11px}.hero-stats{margin-left:auto}.workbench-toolbar{flex-wrap:wrap}.workbench-toolbar>p{font-size:11px}.topic-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}.topic-item{margin:0;min-width:0;width:100%;padding:11px;align-items:center}.topic-copy strong{font-size:13px}.topic-status{font-size:10.5px}.map-panel .mermaid-wrap{min-height:130px;max-height:210px}.map-panel .mermaid-wrap svg{max-height:210px}.source-details:not([open]){margin-bottom:0}.case-presets{display:flex}.panel h2{font-size:14px}.marker-name b{font-size:14px}.quiz-stem{font-size:13px}.quiz-options button{font-size:13px}.radar-wrap{height:240px}.quiz-actions{flex-direction:row}}
@media(max-width:600px){.hero-inner{padding:18px 16px;gap:14px}.hero-brand{align-items:flex-start;gap:10px}.hero-brandmark{width:38px;height:38px;border-radius:13px}.hero-brandmark svg{width:22px;height:22px}.hero-title-line{gap:7px}.hero-title-line h1{font-size:16px;line-height:1.6;letter-spacing:0}.hero-topic{font-size:10px;padding:2px 8px}.hero-brand p{font-size:10.5px;line-height:1.8}.hero-stats{width:100%;gap:8px;margin:0}.stat-chip{flex:1;min-width:0;padding:8px}.stat-chip b{font-size:18px}.stat-chip span{font-size:10.5px}.page-shell{padding:12px 12px 125px}.workbench-toolbar{gap:9px;margin-bottom:12px}.workbench-toolbar>p{font-size:11px}.header-actions{width:100%;padding:0;border:0;gap:6px}.header-actions button{font-size:10px;padding:6px 8px;flex:1;min-height:32px;border-radius:8px}.header-actions .export-progress{flex:0 0 32px;padding:6px}.header-actions svg{width:13px;height:13px}.panel-head{padding:15px 15px 0}.panel h2{font-size:14px}.overline{font-size:10px}.panel-intro{font-size:11px;padding-left:15px;padding-right:15px}.topic-list{display:flex;flex-direction:column;padding:0 11px 12px;overflow:visible}.topic-item{min-width:0;width:100%;padding:10px 8px;align-items:center}.topic-item .topic-copy strong{font-size:12.5px}.topic-copy strong{font-size:12.5px}.knowledge-footer{display:flex}.topic-number{font-size:12px}.topic-status{font-size:10.5px}.source-panel .panel-head{padding:15px 15px 0}.source-body{padding:12px 15px 16px}.source-summary{font-size:12px}.source-body h3{font-size:14px}.source-table,.source-table th{font-size:11px}.source-reference a{font-size:12px}.source-reference small{font-size:10.5px}.textbook-anchor b,.guideline-anchor b,.textbook-anchor span,.guideline-anchor span{font-size:11.5px}.case-presets{gap:6px;padding:0 14px 13px}.preset{font-size:10.5px;min-height:29px;padding:4px 9px}.preset-caption{font-size:10.5px;width:100%}.sandbox-panel>.panel-head{padding:14px 14px 0}.sandbox-panel>.panel-head h2{font-size:14px}.sandbox-panel>.panel-intro{padding-left:14px;padding-right:14px;font-size:10.5px}.sandbox-panel .instant-badge{font-size:9px;white-space:nowrap}.lab-sheet{margin:0 14px;padding:12px}.lab-title h3{font-size:13px}.lab-title p{font-size:7.5px}.sample-stamp{font-size:8px}.lab-meta{font-size:9.5px;gap:9px}.lab-colhead{font-size:9px}.marker-row{padding:12px 0;grid-template-columns:minmax(0,1fr) 59px 38px;gap:5px}.marker-name{gap:7px}.marker-name b{font-size:13px}.marker-name small{font-size:10.5px}.marker-order{font-size:10px;width:18px;height:18px}.result-symbol{font-size:11px}.lab-extra{font-size:10.5px;gap:8px}.lab-footnote{font-size:10px}.interpretation{margin:13px 14px;padding:12px}.interpretation h3{font-size:15px}.interpretation>p,.step-body,.step-body>p{font-size:12px}.risk-badge{font-size:9.5px}.explain-button{margin:0 14px 14px;width:calc(100% - 28px);font-size:12.5px}.isolated-alert{margin:0 14px 13px;font-size:11px}.correction-toggle{padding:14px}.correction-toggle b{font-size:13px}.correction-toggle em{font-size:10px}.correction-list details>p{font-size:12px}.reveal-step{margin-left:14px;margin-right:14px}.step-heading{font-size:12px}.pbl-heading{padding:12px 14px}.question-form{padding:14px}.question-form .input{font-size:12px}.question-form small{font-size:10px}.quiz-stem{font-size:13px}.quiz-options button{font-size:12.5px;padding:10px}.quiz-blueprint>span{font-size:10.5px}.collection-label{font-size:12px}.collection-label>span{font-size:10px}.progress-panel .panel-head{padding:15px 15px 0}.radar-wrap{height:235px}.page-footer{font-size:9px}.compliance-bar{padding:9px 12px;gap:7px;align-items:flex-start}.compliance-bar p{font-size:9.5px;line-height:1.7}.compliance-bar svg{width:14px;height:14px;margin-top:2px}.thinking-progress{bottom:120px;padding:14px}.thinking-progress>p{font-size:12px}.thinking-progress>small{font-size:9.5px}.demo-caption{font-size:11px}.demo-steps{grid-template-columns:repeat(5,minmax(120px,1fr));overflow:auto}.demo-steps button{font-size:11px}.demo-strip>p{font-size:10px}.feedback-modal .input,.feedback-modal .textarea{font-size:13px}.feedback-grid{grid-template-columns:1fr}.feedback-modules{grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}