:root{--ui-ink:#182c43;--ui-muted:#617287;--ui-blue:#245b91;--ui-blue-soft:#edf3f9;--ui-border:#dce3eb;--ui-surface:#fff;--ui-bg:#f3f5f8;--ui-radius:10px;--ui-good:#27674f;--ui-warn:#91601d;--ui-danger:#a03e3e;--blue:#245b91;--text:#182c43;--muted:#617287;--line:#e1e7ee}
body{background:var(--ui-bg);color:var(--ui-ink);font-family:"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;-webkit-font-smoothing:antialiased}
button,a,input,textarea,select{touch-action:manipulation}button{transition:background-color .16s,border-color .16s,color .16s,box-shadow .16s}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #8bb3da;outline-offset:3px}button:active:not(:disabled){filter:brightness(.96)}
.muted,.small.muted{color:var(--ui-muted)}.pill{border-radius:5px;font-weight:500}.panel{border:1px solid var(--ui-border);border-radius:var(--ui-radius);box-shadow:none}.panel-pad{padding:24px}.panel h3{color:var(--ui-ink)}
.btn{min-height:48px;border-radius:8px;padding:11px 20px;font-size:14px;font-weight:600;box-shadow:none;gap:8px}.btn.primary{background:var(--ui-blue);box-shadow:none}.btn.primary:hover:not(:disabled){background:#194b7d}.btn.outline,.btn.secondary{background:#fff;border-color:#cfdbe7;color:var(--ui-blue)}.text-button{font-size:13px;color:var(--ui-blue)}.icon-button{color:var(--ui-muted)}
.workspace[data-view-role="student"]{margin-left:100px;background:var(--ui-bg)}
.rail{width:100px;padding:25px 10px;background:#193f67;color:#dbe6f0;border:0}.brand{font-size:22px;letter-spacing:3px;margin-bottom:25px;color:#fff}.rail-role{margin:0 0 28px;color:#b8cbdf;font-size:11px;letter-spacing:2px}.rail-item{width:80px;min-height:70px;margin:0 0 12px;border-radius:8px;gap:8px;color:#c5d6e7}.rail-item span{font-size:12px;font-weight:500}.rail-item.active{color:var(--ui-blue);background:#fff;box-shadow:none}.rail-bottom .rail-item{min-height:58px}.rail-item:hover:not(.active){background:#ffffff0c}
.workspace[data-view-role="student"] .topbar{height:64px;background:#fff;color:var(--ui-ink);box-shadow:none;border-bottom:1px solid var(--ui-border);padding:0 28px}
.workspace[data-view-role="student"] .breadcrumb{color:var(--ui-ink);font-size:16px;letter-spacing:.3px}.breadcrumb>span:first-child::before{color:var(--ui-muted);font-size:17px}.workspace[data-view-role="student"] .topbar-right .avatar-text b{color:var(--ui-ink);font-size:13px}.workspace[data-view-role="student"] .topbar-right .avatar-text small{color:var(--ui-muted);font-size:11px}.workspace[data-view-role="student"] .topbar-right .avatar-circle{background:#edf3f9;color:var(--ui-blue);border:1px solid #d7e3ef;border-radius:8px}
.workspace[data-view-role="student"] .role-switch{background:#f3f6f9;border:1px solid #e0e7ee;border-radius:7px;padding:3px;gap:2px}.workspace[data-view-role="student"] .role-switch>span{color:var(--ui-muted);font-size:11px}.workspace[data-view-role="student"] .role-switch button{color:var(--ui-muted);border-radius:5px;font-size:12px;padding:6px 13px}.workspace[data-view-role="student"] .role-switch button.active{background:#fff;color:var(--ui-blue);box-shadow:0 1px 4px #213d5912}
.workspace[data-view-role="student"] .prototype-print{color:var(--ui-blue);border:1px solid var(--ui-border);border-radius:7px;min-height:40px;background:white;font-size:12px;padding:8px 14px}.workspace[data-view-role="student"] .subjectbar{height:48px;gap:25px;padding:0 28px;background:#fff;border-bottom:1px solid var(--ui-border)}.workspace[data-view-role="student"] .subjectbar button{color:#6c7b8d;font-size:13px;padding:10px 9px;height:48px;position:relative}.workspace[data-view-role="student"] .subjectbar button.active{color:var(--ui-blue)}.workspace[data-view-role="student"] .subjectbar button.active::after{content:'';position:absolute;left:9px;right:9px;bottom:0;height:3px;background:var(--ui-blue);border-radius:2px}
.workspace[data-view-role="student"] .layout{min-height:calc(100dvh - 112px)}.workspace[data-view-role="student"] .main{padding:22px 26px;min-width:0}.main:has(.stepper)>.page-heading{display:flex;align-items:center;margin-bottom:18px}.page-heading .eyebrow{display:none}.page-heading h1{font-size:23px;line-height:1.5;letter-spacing:.2px;color:var(--ui-ink);font-weight:650}.page-heading p{font-size:12px;line-height:1.7;color:var(--ui-muted);margin-top:4px}.page-heading>.text-button{font-size:12px;min-height:44px}
.stepper{gap:9px;margin-bottom:14px}.step-button{min-height:62px;height:auto;display:flex;flex-direction:row;justify-content:center;gap:10px;padding:8px 10px;border:1px solid #d9e3ed;border-radius:8px;background:#fff;box-shadow:none}.step-button .step-letter{display:grid;place-items:center;width:30px;height:34px;font-size:23px;color:var(--ui-blue);background:none;border-radius:5px;font-weight:600}.step-info{display:flex;flex-direction:column;gap:3px;align-items:flex-start}.step-info b{font-size:13px;color:var(--ui-ink);font-weight:600}.step-info small{font-size:10px;letter-spacing:.4px;color:var(--ui-muted)}.step-button.active{background:var(--ui-blue);border-color:var(--ui-blue);box-shadow:0 3px 8px #245b9112}.step-button.active .step-letter,.step-button.active .step-info b{color:#fff;background:none}.step-button.active .step-info small{color:#d6e4f0}.step-button.done:not(.active){background:#f9fcff;border-color:#bfd1e1}.step-button.done:not(.active) .step-letter{color:var(--ui-blue);background:none}.step-check{right:5px;top:4px;font-size:10px;color:var(--ui-good)}
.original-course-tools{margin:0 0 12px;color:var(--ui-muted)}.original-course-tools>summary{min-height:30px;font-size:12px}.delivery-toolbar{background:#fff;border:1px solid var(--ui-border);border-radius:8px;box-shadow:none;margin-bottom:14px}.delivery-toolbar-top,.delivery-toolbar-bottom{padding:9px 15px}.delivery-buttons .btn{min-height:40px;font-size:12px}.delivery-device{border-radius:7px;background:#f1f4f8}.delivery-device button{font-size:12px;border-radius:5px;color:var(--ui-muted)}.delivery-device button.active{color:var(--ui-blue);box-shadow:0 1px 4px #17334d0d}.delivery-placement-strip{display:none}
.course-sidebar{width:218px;flex-basis:218px;margin:22px 0 22px 18px;padding:20px 14px;border:1px solid var(--ui-border);border-radius:9px;box-shadow:none}.course-heading h3{font-size:15px;color:var(--ui-ink)}.teacher-tag{background:#edf3f9;border-radius:4px;font-size:11px}.chapter-label{color:var(--ui-ink);font-size:13px;padding:13px 4px}.chapter-item{font-size:13px;line-height:1.7;border-radius:6px;padding:10px}.chapter-item.active{background:#edf3f9;color:var(--ui-blue)}.chapter-locked{font-size:12px;color:var(--ui-muted)}
.preview-learning-grid{grid-template-columns:minmax(205px,.72fr) minmax(0,1.45fr);gap:24px}.stage-preview .panel-body{padding:26px}.preview-task-title{font-size:18px;letter-spacing:.3px;color:var(--ui-ink)}.stage-preview .check-item{min-height:100px;border-radius:8px;box-shadow:none;background:#fff;border:1px solid var(--ui-border);padding:17px;gap:12px}.stage-preview .check-content b{font-size:15px;color:var(--ui-ink)}.stage-preview .check-content small{font-size:13px;color:var(--ui-muted);line-height:1.8}.stage-preview .check-circle{background:#edf3f9;color:var(--ui-blue);border-radius:6px;height:29px;width:29px}.stage-preview .check-item.checked{background:#f4f8fb;border-color:#93afc9}.stage-preview .check-item.checked .check-circle{background:var(--ui-blue);color:#fff}.preview-handout{border-radius:7px;border-color:#d7dfe8;background:#fff;max-height:610px}.lh-paper{padding:27px;line-height:1.9}.lh-paper header{font-size:12px;color:var(--ui-blue)}.lh-paper header small{font-size:11px;color:var(--ui-muted)}.lh-paper h2{font-size:23px;margin-top:13px;color:var(--ui-ink)}.lh-paper h3{font-size:15px;color:var(--ui-blue)}.lh-paper p{font-size:14px;color:#405369}.lh-paper dl>div{font-size:13px;background:#f5f7fa;border-radius:5px}.stage-preview .upload-zone{margin-top:24px;padding-top:20px;border-top:1px solid var(--ui-border)}.stage-preview .upload-actions>.btn{background:var(--ui-blue);font-size:14px;box-shadow:none;border-radius:8px;min-height:48px;padding:12px 24px}.action-hint{font-size:12px;color:var(--ui-muted)}
.op-root{color:var(--ui-ink)}.op-content{max-width:1080px;margin:0 auto;padding:28px 34px}.op-question-indicator{color:var(--ui-muted);font-size:13px}.op-q-type{font-size:12px;background:#edf3f9;color:var(--ui-blue);border-radius:4px}.op-question-numbers{gap:10px}.op-question-number{width:48px;height:48px;border-radius:8px;font-size:17px;box-shadow:none}.op-number-caption{font-size:13px;color:var(--ui-muted)}.op-number-caption small{font-size:11px;color:var(--ui-muted)}.op-question-area{margin-top:26px}.op-q-stem{font-size:19px;line-height:1.85;color:var(--ui-ink);font-weight:500;margin-bottom:22px}.op-options{gap:12px}.op-option{border-radius:8px;min-height:62px;background:white;border:1px solid #dbe2ea;font-size:16px;line-height:1.65;color:#314960;padding:14px 19px;box-shadow:none}.op-option.is-selected{background:#edf3f9;border-color:#6e97bb;color:var(--ui-blue)}.op-option-letter{border-radius:5px;font-size:14px}.op-bottom-bar{border-top:1px solid var(--ui-border);padding-top:20px}.op-btn{min-height:48px;font-size:14px;border-radius:8px;box-shadow:none}.op-primary{background:var(--ui-blue)}
.p1-sub-tabs{gap:0;border-bottom:1px solid var(--ui-border);margin-bottom:22px}.p1-sub-tab{min-height:52px;border-radius:0;background:none;font-size:14px;padding:12px 22px;color:var(--ui-muted);border-bottom:3px solid transparent}.p1-sub-tab.active{background:none;border-color:var(--ui-blue);color:var(--ui-blue);box-shadow:none}.p1-analysis-layout{gap:20px}.p1-panel-card,.p1-model-section,.p1-reason-panel{border:1px solid var(--ui-border);border-radius:8px;box-shadow:none;background:#fff}.p1-panel-card{padding:22px}.p1-q-stem{font-size:17px;line-height:1.8;color:var(--ui-ink)}.p1-option{font-size:14px;line-height:1.8;border-radius:5px}.p1-answer-row{font-size:14px;color:#42576b;line-height:1.9;margin-top:12px}.p1-section-title,.p1-model-head h3{font-size:16px;color:var(--ui-ink)}.p1-model-head{padding:18px 20px;background:#f6f8fa;border-bottom:1px solid var(--ui-border);border-radius:8px 8px 0 0}.p1-model-tag{font-size:11px;border-radius:4px;background:#edf3f9;color:var(--ui-blue)}.p1-step-row{padding:16px 19px;gap:14px;min-height:86px}.p1-step-num{border-radius:5px;background:#edf3f9;color:var(--ui-blue);width:29px;height:29px;font-size:13px}.p1-step-title-line b{font-size:14px;color:var(--ui-ink)}.p1-step-title-line span{font-size:11px;color:var(--ui-muted)}.p1-step-content p{font-size:14px;line-height:1.85;color:#41576b}.p1-model-summary{font-size:12px;color:var(--ui-muted);background:#f7f9fb}.p1-btn{min-height:48px;border-radius:8px;font-size:14px;box-shadow:none}.p1-primary{background:var(--ui-blue)}.p1-reason-item{border-radius:7px;min-height:64px;border-color:var(--ui-border);background:#fff}.p1-reason-item strong{font-size:14px;color:var(--ui-ink)}.p1-reason-item small{font-size:12px;color:var(--ui-muted)}.p1-result-overview{border-radius:7px;background:#f8fafc;border:1px solid var(--ui-border)}.p1-result-overview>summary{font-size:13px;min-height:46px;padding:12px 15px;color:var(--ui-blue)}.p1-video-unavailable{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#f6f8fa;border:1px dashed #d6e0e9;border-radius:6px;padding:14px;margin-top:18px;font-size:12px;color:var(--ui-muted)}.p1-explanation-video{max-width:100%;margin-top:16px;border-radius:6px}
.report-header{margin:0 0 22px;align-items:center}.report-header h1{font-size:28px;letter-spacing:.3px;color:var(--ui-ink)}.report-header .eyebrow{font-size:11px;letter-spacing:1px;color:var(--ui-muted);margin-bottom:8px}.report-header p{font-size:13px}.report-hero{padding:27px 30px;background:#fff;border:1px solid var(--ui-border);border-top:3px solid var(--ui-blue);border-radius:8px;box-shadow:none;color:var(--ui-ink);gap:26px}.report-hero::before,.report-hero::after{display:none}.report-hero h2{font-size:24px;font-weight:600;color:var(--ui-ink);margin:13px 0 9px}.report-hero p{font-size:13px;line-height:1.8;color:var(--ui-muted)}.report-hero .pill{background:#edf3f9!important;color:var(--ui-blue)!important;font-size:11px}.report-hero-score{border-left:1px solid var(--ui-border);padding-left:30px;min-width:130px}.report-hero-score b{font-size:52px;font-weight:650;color:var(--ui-blue);line-height:1.1}.report-hero-score span{font-size:12px;color:var(--ui-muted);margin-top:9px}.stat-grid.report-stat-grid{gap:0;border:1px solid var(--ui-border);border-radius:8px;overflow:hidden;background:#fff;margin:16px 0 22px}.report-stat-grid .stat-card{border:0;border-radius:0;box-shadow:none;border-right:1px solid var(--ui-border);padding:20px 24px}.report-stat-grid .stat-card:last-child{border-right:0}.stat-card p{font-size:13px;color:var(--ui-muted);margin-bottom:11px}.stat-card strong{font-size:30px;font-weight:600;color:var(--ui-ink)}.stat-card strong small{font-size:12px;color:var(--ui-muted)}.stat-card>small{font-size:11px;color:var(--ui-muted);line-height:1.8}
.student-report-overview>.panel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;padding:23px 24px}.student-report-overview>.panel>h3{grid-column:1/-1;font-size:17px;margin-bottom:20px}.student-report-overview .insight-item{border:0;border-right:1px solid var(--ui-border);padding:0 18px;font-size:13px;line-height:1.9;color:var(--ui-muted)}.student-report-overview .insight-item:nth-child(2){padding-left:0}.student-report-overview .insight-item:last-child{padding-right:0;border-right:0}.student-report-overview .insight-item b{font-size:14px;color:var(--ui-ink);line-height:1.7;margin-bottom:8px}.student-next-actions{margin:14px 0 22px;gap:10px}.student-next-actions .btn{font-size:13px;min-height:46px}.student-report-details{border-radius:8px;border-color:var(--ui-border)}.student-report-details>summary{font-size:14px;min-height:58px;color:var(--ui-blue)}.question-table{font-size:13px}.question-table td,.question-table th{font-size:12px;padding:13px 12px}.report-step{font-size:12px;grid-template-columns:30px 70px 1fr 48px}.report-step b{color:#3d536b}.report-step .step-icon{border-radius:5px}.page-foot{border:0;color:#6b7c90;font-size:11px;margin-top:20px;min-height:38px}.page-foot button{color:var(--ui-muted);font-size:12px;min-height:40px}
.lf-daily{padding:24px;border-radius:8px}.lf-title h3{font-size:17px;color:var(--ui-ink)}.lf-expression-metrics{gap:14px}.lf-expression-metrics>div{background:#f7f9fb;border:1px solid var(--ui-border);border-radius:7px;padding:20px}.lf-expression-metrics small{font-size:12px;color:var(--ui-muted)}.lf-expression-metrics strong{font-size:29px;font-weight:600;color:var(--ui-blue)}.lf-expression-metrics p,.lf-coverage-note{font-size:12px;color:var(--ui-muted);line-height:1.8}.lf-encouragement{background:#f4f8f7;border:1px solid #dce7e3;border-radius:7px;padding:19px 21px}.lf-encouragement p,.lf-encouragement small{font-size:13px;line-height:1.85;color:#4b665c}.lf-exam-detail>summary{font-size:12px;min-height:44px;color:var(--ui-muted)}.lf-demo{border-radius:4px;font-size:10px}
.ev-key-warning{background:#fff7ed!important;border-color:#c3934e!important;color:#84571f!important}.ev-standard-issue{background:#fff8ef;border:1px solid #eed7b8;border-radius:6px;padding:14px 17px;margin:0 0 14px;font-size:14px;line-height:1.9;color:#795329}.ev-standard-issue b{color:#795329}.ev-standard-issue p{margin-top:6px}.ev-needs-review>.ev-step-head{color:#855a23}.ev-needs-review>.ev-step-head>span{color:#855a23}
.modal{border-radius:12px;border:1px solid #dbe4ed;box-shadow:0 24px 75px #112b4938}.modal-head{padding:20px 24px;background:#fff}.modal-head h2{font-size:18px;color:var(--ui-ink)}.modal-body{font-size:14px;color:#465d73;line-height:1.9}.modal-body .small{font-size:12px}#toast{border-radius:7px;background:#1c3b5b;font-size:13px;box-shadow:0 4px 22px #16355224}
@media(min-width:1500px){.workspace[data-view-role="student"] .main{padding:26px 34px}.op-content{max-width:1120px}.page-heading h1{font-size:25px}.step-button{min-height:64px}.lh-paper p{font-size:15px}.p1-q-stem{font-size:18px}}
@media(min-width:780px) and (max-width:1100px){.workspace[data-view-role="student"] .main{padding:18px}.workspace[data-view-role="student"] .topbar{padding:0 18px}.workspace[data-view-role="student"] .subjectbar{padding:0 18px;gap:16px}.step-button{gap:6px;padding:8px 6px;min-height:60px}.step-info b{font-size:12px}.step-info small{font-size:10px}.step-button .step-letter{font-size:22px;width:25px}.course-sidebar{width:190px;flex-basis:190px;padding:18px 10px;margin-left:14px}.preview-learning-grid{grid-template-columns:minmax(170px,.7fr) minmax(0,1.35fr);gap:18px}.stage-preview .panel-body{padding:22px}.stage-preview .check-item{padding:13px;gap:10px}.stage-preview .check-content small{font-size:12px}.lh-paper{padding:21px}.lh-paper h2{font-size:21px}.lh-paper dl>div{grid-template-columns:85px 1fr;gap:10px}.page-heading h1{font-size:21px}.op-content{padding:24px}.p1-panel-card{padding:18px}.student-report-overview .insight-item{padding:0 12px;font-size:12px}.student-report-overview .insight-item b{font-size:13px}}
@media(max-width:779px){.workspace[data-view-role="student"]{margin-left:100px}.workspace[data-view-role="student"] .topbar{padding:0 14px}.workspace[data-view-role="student"] .main{padding:16px}.page-heading h1{font-size:20px}.stepper{gap:7px}.step-info{display:none}.step-button{min-height:52px;padding:6px}.preview-learning-grid{grid-template-columns:1fr}.student-report-overview>.panel{display:block}.student-report-overview .insight-item,.student-report-overview .insight-item:nth-child(2){border:0;border-bottom:1px solid var(--ui-border);padding:15px 0}.report-hero{padding:22px}.report-hero h2{font-size:21px}.report-hero-score{min-width:90px;padding-left:20px}}
@media(max-width:600px){.workspace[data-view-role="student"]{margin-left:0;padding-bottom:76px}.rail{width:100%;height:68px;padding:4px 8px;inset:auto 0 0;display:flex;flex-direction:row;background:#193f67}.rail .brand,.rail .rail-role,.rail .rail-bottom{display:none}.rail-item{width:45%;max-width:none;min-height:58px;margin:0;border-radius:6px}.workspace[data-view-role="student"] .subjectbar{gap:10px;padding:0 13px}.workspace[data-view-role="student"] .topbar{height:58px}.role-switch>span{display:none}.workspace[data-view-role="student"] .main{padding:13px}.page-heading{gap:12px}.page-heading>.text-button{font-size:11px}.page-heading h1{font-size:19px}.page-heading p{font-size:11px}.op-content{padding:20px 15px}.op-option{font-size:15px}.report-stat-grid .stat-card{padding:18px 15px;border-bottom:1px solid var(--ui-border)}.report-stat-grid .stat-card:last-child{border-bottom:0}.stat-card strong{font-size:27px}.report-hero-score b{font-size:40px}.report-header h1{font-size:24px}.report-hero p{font-size:12px}.panel-pad,.lf-daily{padding:20px}.stage-preview .panel-body{padding:20px}.stage-preview .check-item{min-height:80px}.p1-sub-tab{font-size:12px;padding:10px 7px}.p1-panel-card{padding:17px}.student-report-overview>.panel{padding:20px}.student-next-actions .btn{font-size:12px}.lh-paper dl>div{grid-template-columns:90px 1fr}.report-header>.row{gap:7px}.report-header .btn{font-size:11px;min-height:42px;padding:9px 11px}}
@media(prefers-reduced-motion:reduce){button,a{transition:none}}
@media print{body,.workspace[data-view-role="student"]{background:#fff!important}.workspace[data-view-role="student"]{margin:0!important}.report-hero{box-shadow:none}.page-heading{display:none!important}.student-report-overview>.panel{display:block}.student-report-overview .insight-item{border:0;padding:12px 0}.report-hero-score b{font-size:38px}}