:root{color-scheme:light;--bg:#f6f5f0;--paper:#fffefb;--navy:#173641;--navy2:#244b56;--teal:#147e74;--teal-dark:#0d625a;--mint:#e5f3ec;--gold:#dca34a;--ink:#213c43;--muted:#758080;--line:#e4e8df;--danger:#b85043;--danger-bg:#fff0e9;--blue-bg:#edf3fa;--shadow:0 7px 24px #18364105;--radius:20px;--sans:Inter,"Segoe UI","Microsoft YaHei",PingFang SC,Arial,sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.7}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #56b6aa;outline-offset:3px}::selection{background:#c6e8dc}h1,h2,h3,h4,p{margin-top:0}h1{font-size:30px;line-height:1.4;letter-spacing:-.8px;margin-bottom:7px;font-weight:750}h2{font-size:20px;line-height:1.5;margin-bottom:16px;letter-spacing:-.3px}h3{font-size:16px;line-height:1.6;margin-bottom:9px}p{margin-bottom:12px}.muted{color:var(--muted)}.small{font-size:12px}.eyebrow{color:var(--teal);font-size:11px;font-weight:750;letter-spacing:2px;text-transform:uppercase;margin-bottom:10px}.mono{font-variant-numeric:tabular-nums}.prewrap{white-space:pre-wrap;overflow-wrap:anywhere}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;z-index:9999;top:-80px;left:20px;background:var(--navy);padding:12px 20px;color:white}.skip-link:focus{top:10px}.icon{width:19px;height:19px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.initial-loading{min-height:100vh;display:grid;place-content:center;text-align:center;gap:20px}.brand-mark{width:43px;height:43px;background:#d9eec9;color:var(--navy);display:inline-grid;place-items:center;border-radius:13px;font-size:25px;font-weight:750;flex:none}.initial-loading .brand-mark{margin:auto}
.app-layout{display:flex;min-height:100vh}.sidebar{width:228px;position:fixed;inset:0 auto 0 0;background:var(--navy);color:#dbe6e5;padding:32px 22px 23px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;gap:12px;align-items:center;color:#fff;margin:0 0 42px 8px}.brand:hover{text-decoration:none}.brand strong{display:block;font-size:19px;letter-spacing:2px;line-height:1.5}.brand small{font-size:10px;color:#a2bab8;letter-spacing:2px}.nav-label{font-size:10px;color:#89a3a6;letter-spacing:2px;margin:0 14px 10px}.main-nav{display:grid;gap:6px}.nav-item{color:#adc3c6;display:flex;align-items:center;gap:13px;padding:13px 15px;border-radius:11px;font-size:13px}.nav-item:hover{color:white;background:#ffffff08;text-decoration:none}.nav-item.active{background:#ffffff12;color:#f4f9f5;box-shadow:inset 3px 0 #a5dbb9}.nav-item.active .icon{color:#b3dfc3}.sidebar-tip{margin-top:auto;padding:24px 14px;color:#a5bdbb;font-size:12px;line-height:1.9}.sidebar-tip strong{color:#d5e8dc;display:block;font-weight:500;margin-bottom:4px}.profile{border-top:1px solid #ffffff12;padding:18px 6px 0;display:flex;align-items:center;gap:10px}.avatar{width:33px;height:33px;border-radius:50%;background:#ffffff12;display:grid;place-items:center;color:#cbe0dc;font-size:12px}.profile-copy{flex:1;font-size:12px;line-height:1.6}.profile-copy small{display:block;color:#88a4a6;font-size:10px}.logout{background:none;border:0;color:#a4bbbd;padding:7px;border-radius:7px}.logout:hover{background:#ffffff10;color:white}.main-shell{width:calc(100% - 228px);margin-left:228px;min-width:0}.topbar{height:77px;border-bottom:1px solid var(--line);padding:0 42px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:#faf9f5}.topbar-title{font-size:12px;color:#7c8986}.topbar-meta{display:flex;align-items:center;gap:18px;font-size:11px;color:#7c8986}.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--teal);margin-right:6px}.workspace{max-width:1440px;padding:34px 42px 55px;margin:auto}.page-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:25px;margin-bottom:25px}.page-heading p{color:var(--muted);font-size:13px;margin-bottom:0}.heading-actions{display:flex;align-items:center;gap:9px;padding-top:7px;flex-wrap:wrap}.breadcrumb{font-size:12px;margin-bottom:16px;display:flex;gap:8px;align-items:center}.badge{display:inline-flex;align-items:center;gap:4px;border-radius:6px;padding:3px 8px;font-size:10px;font-weight:600;line-height:1.6;background:#eef0eb;color:#66756f;white-space:nowrap}.badge.teal{color:#187365;background:#e4f2e8}.badge.gold{color:#9a6f24;background:#fbf0d9}.badge.red{color:#ad5145;background:#fcedea}.badge.blue{color:#577493;background:#eaf0f7}.badge.navy{color:#f0f7f5;background:var(--navy2)}.btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;background:var(--teal);color:white;border:1px solid var(--teal);border-radius:9px;padding:10px 17px;font-size:12px;font-weight:600;line-height:1.5;min-height:39px}.btn:hover{text-decoration:none;background:var(--teal-dark);border-color:var(--teal-dark)}.btn.secondary{background:var(--paper);border-color:#dce3dc;color:var(--ink)}.btn.secondary:hover{background:#f0f4ed}.btn.ghost{background:transparent;color:var(--teal);border-color:transparent;padding-left:6px;padding-right:6px}.btn.ghost:hover{background:#eaf2e8}.btn.danger{background:var(--danger);border-color:var(--danger)}.btn.danger-outline{color:var(--danger);border-color:#ebc5bc;background:white}.btn.small{font-size:11px;min-height:32px;padding:7px 11px}.btn.large{padding:13px 21px;min-height:47px;font-size:13px}.btn.full{width:100%}.btn .icon{width:16px;height:16px}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow)}.card-header{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:16px}.card-header h2,.card-header h3{margin:0}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:21px}.grid-main{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(280px,1fr);gap:23px}.stack{display:grid;gap:20px;align-content:start}.row{display:flex;gap:12px;align-items:center}.spread{display:flex;gap:15px;justify-content:space-between;align-items:center}.wrap{flex-wrap:wrap}.section-gap{margin-top:25px}.section-title{display:flex;justify-content:space-between;align-items:center;margin:28px 0 14px}.section-title h2{font-size:18px;margin:0}.notice{padding:13px 17px;border-radius:11px;background:#edf2e9;color:#607566;font-size:12px;line-height:1.8;display:flex;gap:10px}.notice .icon{margin-top:2px;width:16px;height:16px}.notice.warning{background:#fbf1dd;color:#9b7539}.notice.error{background:var(--danger-bg);color:var(--danger)}.notice.info{background:var(--blue-bg);color:#56738a}.notice p:last-child{margin:0}.alert-slot:empty{display:none}.divider{height:1px;background:var(--line);margin:20px 0}.empty{padding:37px 24px;text-align:center;color:var(--muted)}.empty .empty-icon{width:50px;height:50px;display:grid;place-items:center;margin:0 auto 12px;background:#edf1e9;border-radius:15px;color:#8fa78e}.empty h3{color:var(--ink);font-size:15px;margin-bottom:5px}.empty p{font-size:12px;max-width:400px;margin:0 auto 17px}.loading{text-align:center;padding:60px;color:var(--muted)}.spinner{width:22px;height:22px;border:2px solid #dce9e0;border-top-color:var(--teal);border-radius:50%;display:inline-block;animation:spin .7s linear infinite;margin:0 auto 12px}@keyframes spin{to{transform:rotate(360deg)}}
.hero{background:var(--navy);color:#eff6f2;border-radius:21px;position:relative;overflow:hidden;padding:29px 32px;display:flex;justify-content:space-between;gap:25px;min-height:194px}.hero:after{content:"";position:absolute;right:134px;top:-92px;width:300px;height:300px;border:1px solid #ffffff09;border-radius:50%;pointer-events:none}.hero .eyebrow{color:#a6d8bf;letter-spacing:1.3px;font-size:10px}.hero h2{font-size:25px;margin-bottom:10px;max-width:480px;font-weight:600}.hero p{font-size:12px;color:#adc2c1;max-width:470px;line-height:1.9}.hero .btn{background:#d8ebc7;color:#234635;border-color:#d8ebc7;margin-top:3px}.hero-count{position:relative;z-index:1;min-width:140px;text-align:right;align-self:center}.hero-count strong{font-weight:450;font-size:68px;line-height:1.1;letter-spacing:-4px;display:block}.hero-count small{color:#adbfba;font-size:10px;letter-spacing:1px}.hero-count .count-unit{font-size:14px;color:#c0d1c8;letter-spacing:0;margin-left:7px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0}.stat-card{border:1px solid var(--line);background:var(--paper);padding:20px 22px;border-radius:15px}.stat-head{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted);margin-bottom:11px}.stat-icon{width:27px;height:27px;border-radius:8px;display:grid;place-items:center;background:#edf2e7;color:#779a6e}.stat-icon .icon{width:14px;height:14px}.stat-value{font-size:30px;line-height:1.2;font-weight:600;letter-spacing:-.8px}.stat-foot{font-size:10px;color:#8c9690;margin-top:8px}.task-list{display:grid;gap:0}.task-item{padding:16px 0;display:flex;gap:15px;align-items:center;border-bottom:1px solid #eef0e8}.task-item:last-child{border-bottom:0;padding-bottom:0}.task-item:first-child{padding-top:0}.task-number{width:37px;height:37px;display:grid;place-items:center;border:1px solid #dfe8dc;background:#f5f7ee;color:#6c8b68;border-radius:11px;font-size:11px;font-weight:600;flex:none}.task-text{flex:1;min-width:0}.task-text strong{display:block;font-size:13px;font-weight:600;margin-bottom:3px}.task-text span{font-size:11px;color:var(--muted)}.task-time{font-size:11px;color:#859186;margin-right:8px;white-space:nowrap}.task-link{width:28px;height:28px;border:1px solid #e4e8dc;border-radius:50%;display:grid;place-items:center;flex:none}.task-link:hover{background:var(--mint)}.task-link .icon{width:13px;height:13px}.lesson-preview{background:#f0f4e8;border:1px solid #e2e9d9;padding:23px;border-radius:16px}.lesson-preview h3{font-size:18px;line-height:1.5;margin:12px 0 10px}.lesson-preview p{font-size:12px;color:#73806b}.progress-track{height:5px;background:#e5ebdf;border-radius:10px;overflow:hidden}.progress-track span{height:100%;background:var(--teal);display:block;border-radius:10px}.weekly-note{font-size:11px;color:var(--muted);line-height:1.9}.table-wrap{overflow:auto}.data-table{border-collapse:collapse;width:100%;font-size:12px;white-space:nowrap}.data-table th{text-align:left;padding:12px 14px;color:#8b958e;font-size:10px;font-weight:500;background:#f8f9f3;border-bottom:1px solid var(--line)}.data-table td{padding:15px 14px;border-bottom:1px solid #eff0e9}.data-table tr:last-child td{border-bottom:0}.data-table .primary-cell{font-weight:600;color:var(--ink)}
.auth-shell{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}.auth-aside{background:var(--navy);color:#eff6ee;padding:55px 9%;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}.auth-aside .brand{margin:0 0 55px}.auth-art{height:230px;position:relative;max-width:380px;margin:15px 0 30px}.step-art{position:absolute;bottom:0;width:80px;border:1px solid #a2c3ae40;border-radius:12px 12px 0 0;background:#729e8520}.step-art:nth-child(1){left:0;height:65px}.step-art:nth-child(2){left:90px;height:110px}.step-art:nth-child(3){left:180px;height:160px}.step-art:nth-child(4){left:270px;height:210px;background:#d4e7b7}.auth-aside h1{font-size:38px;line-height:1.65;font-weight:550;letter-spacing:1px;max-width:440px}.auth-aside p{color:#a7c0b8;font-size:13px;max-width:380px;line-height:2}.auth-aside footer{font-size:10px;color:#91aaa8;letter-spacing:1px;margin-top:40px}.auth-main{display:flex;justify-content:center;align-items:center;padding:45px}.auth-panel{max-width:425px;width:100%}.auth-panel h2{font-size:27px;margin-bottom:9px}.auth-panel>.muted{font-size:12px;margin-bottom:29px}.role-switch,.segmented{display:flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:11px;background:#efF1e9;margin-bottom:24px}.role-switch button,.segmented button{border:0;background:none;border-radius:7px;flex:1;padding:9px;color:#7d8880;font-size:12px}.role-switch button.active,.segmented button.active{background:white;color:var(--teal);box-shadow:0 2px 6px #20372d08;font-weight:600}.field{display:grid;gap:7px;margin-bottom:18px}.field label,.field-label{font-size:12px;font-weight:600;color:#465b57}.field small{font-size:10px;color:#89948a;line-height:1.8}.input,textarea,select{border:1px solid #dfe4db;border-radius:9px;background:var(--paper);color:var(--ink);padding:11px 13px;width:100%;min-height:42px;transition:border-color .15s}input::placeholder,textarea::placeholder{color:#a0aaa0;font-size:12px}textarea{resize:vertical;min-height:100px;line-height:1.9}textarea.code-input{font-family:Consolas,monospace;font-size:12px;min-height:230px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.check-label{display:flex;align-items:center;gap:7px;font-size:11px;color:#7c8982}.check-label input{accent-color:var(--teal)}.form-error{color:var(--danger);font-size:12px;margin:0 0 14px}.auth-note{margin-top:24px;text-align:center;font-size:11px;color:#8b968d}.role-description{background:#edf2e9;border-radius:11px;padding:13px 16px;margin-bottom:20px;color:#66806b;font-size:12px}.password-rules{font-size:11px;color:#7e8c7f;margin-bottom:22px}.setup-grid .field{margin-bottom:14px}
.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:21px}.search-box{position:relative;flex:1;min-width:190px}.search-box .icon{position:absolute;left:13px;top:12px;width:16px;height:16px;color:#91a092}.search-box input{padding-left:39px}.toolbar select{width:auto;min-width:135px;font-size:12px}.tabs{display:flex;gap:5px;flex-wrap:wrap}.tab{padding:8px 14px;border:1px solid transparent;border-radius:8px;background:none;color:#7a8880;font-size:12px}.tab.active{background:var(--mint);color:var(--teal);font-weight:600;border-color:#d9e8dc}.list-card{padding:19px 22px;display:flex;gap:16px;align-items:center;margin-bottom:12px}.list-card-main{flex:1;min-width:0}.list-card h3{margin-bottom:3px;font-size:14px}.list-card p{font-size:11px;color:var(--muted);margin-bottom:0}.word-table-en{font-size:16px;font-weight:650;letter-spacing:.2px}.word-kind{font-size:10px;color:#8c9890}.study-layout{max-width:900px;margin:auto}.study-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:19px}.study-progress{max-width:340px;width:46%}.study-card{min-height:380px;padding:35px 45px;text-align:center;display:flex;flex-direction:column;justify-content:center;align-items:center}.study-card .word{font-family:Georgia,"Times New Roman",serif;font-size:48px;font-weight:400;line-height:1.4;letter-spacing:.3px;margin:12px 0 16px;overflow-wrap:anywhere;max-width:100%}.study-card .meaning{font-size:22px;color:#4c6e5a;margin:9px 0}.study-card .example{font-family:Georgia,"Times New Roman",serif;font-size:20px;color:#5f7065;line-height:1.8;margin:12px 0 8px}.study-card .example-zh{font-size:12px;color:#88958a}.study-card .input{max-width:440px;text-align:center;font-size:18px;margin:15px auto}.study-card .answer-box{width:100%;border-top:1px dashed #dce3d5;padding-top:18px;margin-top:16px}.review-buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:20px}.review-button{background:var(--paper);border:1px solid var(--line);padding:14px 9px;border-radius:12px;color:#617660;font-size:12px}.review-button strong{display:block;font-size:13px;margin-bottom:3px}.review-button small{font-size:10px;color:#92a08d}.review-button:hover{border-color:#74ac8d;background:#edf6e9}.review-button.again{color:#b26b53}.review-button.easy{color:var(--teal)}.study-footer{display:flex;justify-content:space-between;align-items:center;margin:17px 0;color:#8c988c;font-size:11px}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:25px}.lesson-step{margin-bottom:22px}.step-label{display:flex;align-items:center;gap:11px;margin-bottom:13px}.step-label span{font-size:11px;background:var(--mint);border-radius:8px;padding:4px 9px;color:var(--teal)}.step-label h3{margin:0}.example-pair{padding:15px 18px;background:#f2f5ed;border-left:3px solid #8abd99;margin:14px 0;border-radius:0 10px 10px 0}.example-pair .en{font-family:Georgia,"Times New Roman",serif;font-size:18px;color:#345d4e;line-height:1.7}.example-pair .zh{color:#83917e;font-size:12px;margin-top:3px}.tip-list{padding-left:18px;color:#70816e;font-size:12px;line-height:2}.lesson-sidebar{position:sticky;top:20px;align-self:start}
.attempt-layout{display:grid;grid-template-columns:minmax(0,1fr) 235px;gap:23px}.attempt-sidebar{position:sticky;top:18px;align-self:start}.question-card{margin-bottom:20px;padding:24px 28px}.question-top{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:15px}.question-number{font-size:12px;font-weight:650}.question-number span{color:var(--muted);font-weight:400;font-size:10px;margin-left:9px}.question-prompt{font-size:15px;white-space:pre-wrap;line-height:1.95;margin:13px 0 18px;overflow-wrap:anywhere}.passage{background:#f6f7f0;border:1px solid #e5eadd;border-radius:11px;padding:19px 23px;font-family:Georgia,"Times New Roman",serif;font-size:17px;line-height:1.95;white-space:pre-wrap;overflow-wrap:anywhere;margin:14px 0 19px;color:#425647}.options{display:grid;gap:9px}.option{display:flex;align-items:flex-start;gap:10px;border:1px solid #e1e7dc;border-radius:9px;padding:12px 14px;font-size:13px;cursor:pointer;line-height:1.7}.option:hover{background:#f1f6ed}.option:has(input:checked){border-color:#72b399;background:#edf7ef}.option input{margin:5px 0 0;accent-color:var(--teal);flex:none}.option-letter{color:#87967f;margin-right:7px}.answer-meta{margin-top:13px;display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap}.answer-section{padding:17px 19px;border-radius:11px;background:#f6f6ef;margin-top:18px}.answer-section h4{font-size:11px;color:#83917b;font-weight:500;margin-bottom:8px}.answer-section .original-text{font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}.feedback-block{margin-top:16px;border:1px solid #dce7db;border-radius:11px;padding:17px 19px;background:#f0f7ee;font-size:12px;line-height:1.9}.feedback-block.error-feedback{background:#fff5ec;border-color:#ecdccf}.feedback-block .feedback-title{display:flex;justify-content:space-between;gap:10px;margin-bottom:9px;color:#4e7251;font-weight:600}.feedback-block p:last-child{margin-bottom:0}.feedback-label{color:#8a9683;font-size:10px;display:block;margin-bottom:4px}.reference-block{margin-top:15px}.reference-block summary{font-size:11px;color:var(--teal);cursor:pointer}.reference-content{font-size:12px;background:#f4f6ee;padding:14px;border-radius:8px;margin-top:9px;white-space:pre-wrap;overflow-wrap:anywhere}.correction-block{margin-top:18px;border-top:1px dashed #dce2d4;padding-top:17px}.correction-block h4{font-size:12px;margin-bottom:10px}.correction-record{border-left:3px solid #bad0ab;padding:10px 15px;margin:12px 0;background:#fafbf5;font-size:12px}.correction-record p{margin-bottom:5px}.attachments{display:flex;gap:9px;flex-wrap:wrap;margin-top:12px}.attachment{display:flex;align-items:center;gap:7px;padding:5px;background:#f2f4ed;border:1px solid #e2e6d9;border-radius:8px;max-width:230px}.attachment img{width:64px;height:59px;object-fit:cover;border-radius:5px;cursor:zoom-in}.attachment span{font-size:10px;color:#7d8c76;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment .remove-image{border:0;background:none;color:var(--danger);padding:6px;line-height:1}.upload-label{display:inline-flex;align-items:center;gap:6px;border:1px dashed #aabfa3;border-radius:7px;padding:6px 10px;font-size:10px;color:#728b69;cursor:pointer}.upload-label input{position:absolute;opacity:0;width:1px;height:1px}.upload-label:focus-within{outline:2px solid var(--teal);outline-offset:3px}.time-display{font-size:28px;font-weight:550;letter-spacing:1px;margin:6px 0}.q-nav{display:flex;flex-wrap:wrap;gap:7px;margin:14px 0}.q-nav a,.q-nav button{width:31px;height:31px;border:1px solid #dce5d4;color:#809078;border-radius:7px;display:grid;place-items:center;font-size:11px;background:#fffef9}.q-nav .answered{background:#e1efdd;border-color:#c8dec3;color:#477447}.q-nav .active{border-color:var(--teal);background:var(--teal);color:white}.save-status{font-size:10px;color:#8a9982;display:flex;gap:5px;align-items:center;min-height:20px}.save-status.error{color:var(--danger)}.score-big{font-size:35px;font-weight:600;line-height:1.3;margin:9px 0}.score-big small{font-size:13px;color:#8c9885;font-weight:400;margin-left:4px}.retake-label{font-size:10px;color:#8d9886}.summary-card{margin-bottom:23px;background:#ecf4e8}.summary-grid{display:grid;grid-template-columns:180px 1fr;gap:25px}.retest-item{border:1px solid #e0e7d7;border-radius:12px;padding:18px;margin-top:13px;background:#fcfdf8}.retest-item h4{font-size:12px;margin-bottom:8px}.retest-item .field{margin:11px 0}.print-only{display:none}.sticky-actions{position:sticky;bottom:0;padding:12px 18px;background:#fffefaf2;backdrop-filter:blur(12px);border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;align-items:center;z-index:6;border-radius:0 0 12px 12px}
.teacher-workspace{max-width:1740px}.teacher-layout{display:grid;grid-template-columns:170px minmax(300px,1fr) minmax(290px,.85fr);gap:17px;align-items:start}.teacher-q-list{position:sticky;top:20px}.teacher-q-list .card{padding:14px 12px}.teacher-q-item{width:100%;text-align:left;display:flex;align-items:center;gap:9px;border:0;border-radius:9px;padding:11px 9px;color:#7a8b71;background:transparent;margin:4px 0;font-size:11px}.teacher-q-item:hover{background:#f1f5eb}.teacher-q-item.active{background:#e2efda;color:#3c714a;font-weight:600}.teacher-q-item .q-mini{flex:1}.teacher-q-item small{display:block;font-size:9px;font-weight:400;color:#8c9d81}.teacher-q-item .q-indicator{width:6px;height:6px;border-radius:50%;background:#ccd8c4}.teacher-q-item .q-indicator.done{background:var(--teal)}.teacher-source .card{padding:22px}.teacher-source .question-prompt{font-size:14px}.teacher-source .passage{font-size:16px;padding:16px}.teacher-grade{padding:22px;position:sticky;top:20px}.teacher-grade h3{font-size:15px}.teacher-grade .field{margin-bottom:14px}.teacher-grade .field label{font-size:11px}.teacher-grade input,.teacher-grade select,.teacher-grade textarea{font-size:12px;padding:9px 11px}.teacher-grade textarea{min-height:88px}.teacher-grade .short-textarea{min-height:64px}.grading-options{display:grid;grid-template-columns:repeat(2,1fr);gap:7px;margin-bottom:15px}.grading-options label{font-size:11px;padding:8px 9px;border:1px solid var(--line);border-radius:7px;cursor:pointer;display:flex;gap:6px;align-items:center}.grading-options label:has(input:checked){background:#eaf4e4;border-color:#9abe8d;color:#467342}.grading-options input{accent-color:var(--teal)}.rubric{font-size:11px;line-height:1.9;background:#f3f5ed;border-radius:9px;padding:13px;color:#75846b;margin-bottom:16px;overflow-wrap:anywhere;white-space:pre-wrap}.review-mini{border-top:1px solid var(--line);padding-top:17px;margin-top:17px}.review-mini textarea{min-height:60px;font-size:12px}.teacher-banner{padding:17px 23px;margin-bottom:18px;display:flex;gap:16px;justify-content:space-between;align-items:center;background:#eaf2e4;border:1px solid #dce6d3;border-radius:13px}.teacher-banner p{margin:0;font-size:11px;color:#748569}.teacher-banner strong{font-size:13px;display:block;margin-bottom:2px}.teacher-bottom{margin:20px 0}.published-history{font-size:11px;color:#8b9882}.admin-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:22px}.file-drop{border:1px dashed #bdcbb3;border-radius:12px;background:#f8faf1;padding:20px;display:grid;gap:10px;margin:15px 0;font-size:12px}.file-drop input{max-width:100%;font-size:11px}.file-drop input::file-selector-button{font:inherit;border:1px solid #d8e2ce;background:white;padding:7px 12px;border-radius:6px;color:#59764e;margin-right:9px;cursor:pointer}.count-pills{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 19px}.count-pills span{padding:6px 11px;border:1px solid #dfe7d6;border-radius:8px;font-size:11px;color:#718563;background:#f3f7ec}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:23px;max-width:970px}.plain-list{margin:0;padding-left:18px;font-size:12px;color:#7b8b72;line-height:2.1}.toast-region{position:fixed;right:25px;bottom:25px;z-index:1000;display:grid;gap:9px;max-width:390px}.toast{background:var(--navy);color:#edf6ef;border-radius:11px;padding:13px 19px;font-size:12px;box-shadow:0 6px 25px #193c3c25;display:flex;gap:10px;align-items:center;animation:toast-in .2s ease}.toast.error{background:#934c40}.toast button{background:none;border:0;color:inherit;margin-left:10px;padding:0 3px;font-size:18px}@keyframes toast-in{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}.app-dialog{width:580px;max-width:calc(100vw - 30px);max-height:86vh;border:1px solid #e0e7d6;border-radius:19px;padding:27px;background:var(--paper);color:var(--ink);box-shadow:0 20px 70px #16332a38}.app-dialog::backdrop{background:#16372f7d;backdrop-filter:blur(2px)}.dialog-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:17px}.dialog-head h2{margin:0;font-size:20px}.dialog-close{border:0;background:#eef3e7;border-radius:50%;width:29px;height:29px;color:#708565;font-size:19px;line-height:1}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.dialog-body{font-size:13px;color:#718169}.dialog-body p:last-child{margin-bottom:0}.image-dialog{width:1000px}.image-dialog img{width:100%;max-height:70vh;object-fit:contain;background:#f5f6f0}.preview-feedback{padding:13px 0;border-bottom:1px solid #e5eadc}.preview-feedback h4{font-size:12px;margin-bottom:4px}.preview-feedback p{font-size:12px;margin-bottom:5px}.inline-error{font-size:11px;color:var(--danger);margin:7px 0}.wide-notice{margin-bottom:21px}.no-margin{margin:0!important}
.brand strong{font-size:17px;letter-spacing:1px;white-space:nowrap}.account-overview{margin-bottom:22px}.account-status-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.account-status-item{padding:15px;background:#f6f8f1;border:1px solid #e1e8da;border-radius:12px;display:flex;flex-direction:column;align-items:flex-start;gap:9px}.account-status-item>div{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.account-status-item strong{font-size:13px}.password-tools{display:flex;align-items:center;gap:9px;margin:0 0 17px;flex-wrap:wrap}.password-visibility{margin:4px 0 12px}.password-action-status{min-height:40px;color:var(--teal);line-height:1.8}#account-password-panel{scroll-margin-top:20px}
@media(max-width:1000px){.sidebar .brand strong{letter-spacing:.4px}}
@media(max-width:760px){.account-status-grid{grid-template-columns:1fr}.account-status-item{flex-direction:row;align-items:center;justify-content:space-between;padding:12px 14px}.password-tools .btn{flex:1}}
@media(min-width:1600px){.workspace{padding-left:50px;padding-right:50px}.teacher-layout{grid-template-columns:190px minmax(360px,1.2fr) minmax(320px,1fr)}}
@media(max-width:1200px){.sidebar{width:205px;padding-left:15px;padding-right:15px}.main-shell{width:calc(100% - 205px);margin-left:205px}.workspace{padding:29px 27px 45px}.topbar{padding:0 27px}.grid-main{grid-template-columns:1.5fr 1fr}.stats-grid{gap:10px}.stat-card{padding:17px}.teacher-layout{grid-template-columns:125px minmax(260px,1fr) minmax(265px,1fr);gap:12px}.teacher-grade,.teacher-source .card{padding:17px}.teacher-q-list .card{padding:10px 7px}.hero{padding:26px}.hero h2{font-size:22px}.lesson-layout{grid-template-columns:1fr 220px}.attempt-layout{grid-template-columns:1fr 205px}.question-card{padding:22px}.admin-grid{grid-template-columns:1.15fr 1fr}}
@media(max-width:1000px){.sidebar{width:185px}.brand{margin-left:4px;gap:9px}.brand strong{font-size:16px}.brand small{font-size:8px}.brand-mark{width:37px;height:37px;font-size:21px}.main-shell{width:calc(100% - 185px);margin-left:185px}.workspace{padding:26px 23px 40px}.grid-main{grid-template-columns:1fr}.grid-2{gap:15px}.stats-grid{grid-template-columns:repeat(2,1fr)}.teacher-layout{grid-template-columns:110px 1fr}.teacher-grade{grid-column:2;position:static}.teacher-q-list{grid-row:1 / span 2}.teacher-source{grid-column:2}.lesson-layout{grid-template-columns:1fr}.lesson-sidebar{position:static}.admin-grid,.settings-grid{grid-template-columns:1fr}.auth-aside{padding:40px 11%}.auth-aside h1{font-size:30px}.auth-art{transform:scale(.8);transform-origin:left bottom}.auth-main{padding:35px}.attempt-layout{grid-template-columns:1fr}.attempt-sidebar{position:static;grid-row:1}.attempt-sidebar .card{display:flex;gap:20px;align-items:center;flex-wrap:wrap;padding:17px}.attempt-sidebar .divider{display:none}.attempt-sidebar .q-nav{margin:0;max-width:220px}.attempt-sidebar .btn{width:auto}.attempt-sidebar .small{margin-bottom:0}.attempt-sidebar .sidebar-note{display:none}.summary-grid{grid-template-columns:130px 1fr}}
@media(max-width:760px){h1{font-size:25px}.sidebar{position:relative;width:100%;padding:16px 18px 10px;height:auto;gap:8px}.app-layout{display:block}.brand{margin:0;position:relative}.brand .brand-mark{width:32px;height:32px;font-size:19px;border-radius:9px}.brand strong{font-size:16px}.brand small{display:none}.nav-label,.sidebar-tip{display:none}.profile{position:absolute;right:18px;top:14px;border:0;padding:0}.profile .avatar,.profile-copy{display:none}.main-nav{display:flex;overflow-x:auto;gap:6px;margin-top:6px;padding-bottom:2px;scrollbar-width:none}.nav-item{font-size:11px;padding:9px 11px;white-space:nowrap;gap:7px;flex:none;border-radius:8px}.nav-item .icon{width:15px;height:15px}.nav-item.active{box-shadow:inset 0 -2px #b9dab4}.main-shell{width:100%;margin:0}.topbar{height:45px;padding:0 20px}.topbar-title{font-size:10px}.topbar-meta{font-size:10px;gap:8px}.topbar-meta .hide-mobile{display:none}.workspace{padding:24px 18px 40px}.page-heading{gap:12px;margin-bottom:21px;align-items:flex-start}.page-heading p{font-size:11px;max-width:340px}.heading-actions{padding-top:0;gap:6px}.heading-actions .btn{font-size:10px;padding:8px 10px;min-height:32px}.heading-actions .btn .icon{width:13px;height:13px}.hero{min-height:180px;padding:23px;gap:12px}.hero h2{font-size:20px}.hero p{font-size:11px;max-width:260px}.hero-count{min-width:82px}.hero-count strong{font-size:50px}.hero-count small{font-size:9px}.hero-count .count-unit{font-size:11px}.hero:after{right:-10px}.stats-grid{gap:10px;margin:17px 0}.stat-card{padding:15px 17px;border-radius:13px}.stat-value{font-size:26px}.stat-head{font-size:10px;margin-bottom:8px}.stat-foot{font-size:9px}.card{padding:20px;border-radius:16px}.grid-2{grid-template-columns:1fr}.section-title{margin-top:23px}.section-title h2{font-size:17px}.task-item{gap:11px}.task-text strong{font-size:12px}.task-time{font-size:10px;margin-right:0}.task-number{width:33px;height:33px}.task-text span{font-size:10px}.data-table{font-size:11px}.data-table th,.data-table td{padding:12px 9px}.auth-shell{display:block}.auth-aside{min-height:0;padding:28px 27px}.auth-aside .brand{margin:0 0 20px}.auth-aside h1{font-size:24px;line-height:1.5;margin-bottom:9px}.auth-aside h1 br{display:none}.auth-aside p{font-size:11px;max-width:none;margin-bottom:0}.auth-art,.auth-aside footer{display:none}.auth-main{padding:30px 25px 45px}.auth-panel{max-width:480px}.auth-panel h2{font-size:24px}.auth-panel>.muted{margin-bottom:22px}.role-switch{margin-bottom:20px}.form-row{grid-template-columns:1fr;gap:0}.toolbar{gap:9px}.toolbar .tabs{width:100%}.toolbar select{flex:1}.search-box{flex:2}.word-table-en{font-size:14px}.study-card{padding:28px 22px;min-height:340px}.study-card .word{font-size:39px}.study-card .example{font-size:18px}.study-card .meaning{font-size:20px}.study-bar{flex-wrap:wrap;gap:10px}.study-bar .segmented{margin:0}.review-buttons{gap:7px}.review-button{padding:12px 4px}.review-button strong{font-size:12px}.review-button small{font-size:9px}.study-footer{gap:14px;align-items:flex-start}.question-card{padding:20px 19px}.question-prompt{font-size:14px}.passage{padding:15px 17px;font-size:16px}.option{padding:11px 12px;font-size:12px}.attempt-sidebar .card{gap:12px}.attempt-sidebar .time-display{font-size:24px;margin:0}.attempt-sidebar .q-nav{max-width:none;flex:1;min-width:160px}.attempt-sidebar .q-nav a{width:27px;height:27px}.attempt-sidebar .save-status{width:100%}.summary-grid{grid-template-columns:1fr;gap:10px}.summary-grid .score-big{margin:0}.teacher-layout{display:block}.teacher-q-list{position:static;margin-bottom:15px}.teacher-q-list .card{display:flex;overflow:auto;padding:8px;gap:5px}.teacher-q-list .card h3,.teacher-q-list .card>.muted{display:none}.teacher-q-item{width:auto;min-width:95px;flex:none;margin:0;padding:10px}.teacher-q-item small{font-size:9px}.teacher-grade{margin-top:17px}.teacher-source .card{padding:20px}.teacher-banner{padding:15px;align-items:flex-start;flex-direction:column;gap:10px}.teacher-banner .row{width:100%;flex-wrap:wrap}.teacher-banner .btn{flex:1}.teacher-bottom{margin-top:17px}.teacher-workspace .page-heading{flex-direction:column}.teacher-workspace .heading-actions{width:100%}.teacher-workspace .heading-actions .btn{flex:1}.teacher-grade .field textarea{min-height:80px}.list-card{padding:17px;gap:11px}.list-card .btn{padding:8px 10px;font-size:10px}.list-card h3{font-size:13px}.list-card p{font-size:10px}.notice{font-size:11px;padding:12px 14px}.toast-region{bottom:16px;left:18px;right:18px;max-width:none}.toast{font-size:11px;padding:12px 15px}.app-dialog{padding:22px}.dialog-head h2{font-size:18px}.dialog-body{font-size:12px}.spread{gap:10px}.sticky-actions{padding:11px 12px;gap:10px}.sticky-actions .btn{font-size:11px}.empty{padding:26px 15px}.hide-mobile{display:none!important}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media print{.passage.print-repeat{display:none!important}.question-card[data-type="choice"] .print-only{display:none!important}.published-history{display:none!important}}
.field-label{font-size:12px;font-weight:600;margin-bottom:8px}.verdict-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}.verdict-option{display:flex;align-items:center;gap:6px;font-size:11px;background:#f6f8f0;border:1px solid #dfe7d8;border-radius:8px;padding:8px;cursor:pointer}.verdict-option:has(input:checked){background:#e7f2e7;border-color:#81ae8d}.verdict-option input{accent-color:var(--teal)}
@media print{body{background:#fff;color:#000;font-size:12px}.sidebar,.topbar,.heading-actions,.breadcrumb,.attempt-sidebar,.sticky-actions,.toast-region,.app-dialog,.feedback-block,.correction-block,.summary-card,.answer-section,.answer-meta,.upload-label,.attachments,.reference-block,.retests-section,.notice,.teacher-grade,.teacher-q-list,.save-status{display:none!important}.main-shell{width:100%;margin:0}.workspace{padding:0;max-width:none}.attempt-layout{display:block}.page-heading{margin-bottom:20px}.page-heading p{color:#333}.question-card{border:0;box-shadow:none;border-radius:0;padding:10px 0 20px;margin:0;break-inside:avoid;border-bottom:1px solid #bbb}.question-top{margin-bottom:6px}.question-prompt{font-size:12px;margin-bottom:10px}.passage{font-size:12px;background:none;border:0;padding:0}.option{border:0;padding:4px 0;font-size:12px}.option input{display:none}.option:has(input:checked){background:none;border:0}.question-card textarea{display:none}.print-only{display:block;min-height:100px;border-bottom:1px dotted #ddd}.question-card[data-type="writing"] .print-only{min-height:280px}.badge{background:none;color:#333;padding:0}.page-heading h1{font-size:22px}}

.voice-bar{display:flex;align-items:center;flex-wrap:wrap;gap:12px 18px;padding:15px 18px;margin:0 0 20px;background:var(--paper);border:1px solid var(--line);border-radius:13px}.voice-toggle{display:flex;align-items:center;gap:9px;cursor:pointer;font-size:13px;font-weight:600}.voice-toggle input{width:18px;height:18px;accent-color:var(--teal);cursor:pointer}.voice-toggle small{font-size:11px;color:var(--muted);font-weight:400}.voice-accent{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}.voice-accent select{width:auto;min-height:34px;padding:6px 10px;font-size:12px}.voice-bar p{width:100%;margin:0;font-size:11px;color:var(--muted);line-height:1.7}.word-table-heading{display:flex;align-items:center;gap:9px}.word-speak{flex:none;padding:5px 9px;min-height:30px}.voice-bar button:disabled,.word-speak:disabled{opacity:.45;cursor:not-allowed}@media(max-width:760px){.voice-bar{gap:10px 12px;padding:13px}.voice-toggle{font-size:12px}.word-table-heading{align-items:flex-start;flex-direction:column;gap:4px}}