:root{--ink:#192f2a;--muted:#75817b;--green:#176b5b;--green-dark:#105044;--mint:#e8f1ea;--line:#e3e8e1;--paper:#f6f7f2;--white:#fff;--amber:#af741e;--amber-bg:#fff5df;--red:#b6483c;--shadow:0 6px 24px #203b2c07;font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);font-size:14px;line-height:1.65}
*{box-sizing:border-box}body{margin:0;background:var(--paper)}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}a{color:inherit;text-decoration:none}button{border:0;background:none;color:inherit}input,textarea,select{width:100%;border:1px solid #dce3dc;background:#fff;border-radius:9px;padding:10px 12px;color:var(--ink);outline:none}input:focus,textarea:focus,select:focus{border-color:var(--green);box-shadow:0 0 0 3px #176b5b10}textarea{resize:vertical;min-height:93px;line-height:1.75}h1,h2,h3,h4,p{margin:0}h1{font-size:34px;line-height:1.35;letter-spacing:-1px}h2{font-size:23px;line-height:1.5}h3{font-size:17px}h4{font-size:14px}.muted{color:var(--muted)}.small{font-size:12px}.eyebrow{font-size:11px;letter-spacing:1.6px;font-weight:700;color:var(--green);text-transform:uppercase}.icon{width:20px;height:20px;display:inline-block;vertical-align:middle;flex-shrink:0}.brand-icon{width:40px;height:40px;border-radius:13px;background:var(--green);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-family:serif;font-size:26px}.boot{padding:20vh 0;text-align:center}.boot p{margin-top:18px;color:var(--muted)}
.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 36px;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:30}.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}.brand strong{font-size:19px;letter-spacing:1px}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:1.5px}.topnav{display:flex;align-items:center;height:100%;gap:28px}.topnav button{height:100%;font-size:13px;font-weight:600;color:#6c7972;border-bottom:3px solid transparent;padding:3px 0 0}.topnav button.active{color:var(--green);border-color:var(--green)}.header-right{display:flex;align-items:center;gap:12px}.role-picker{width:123px;font-size:12px;background:var(--paper);border-color:var(--line);padding:7px 10px}.local-tag{font-size:11px;padding:3px 8px;border:1px solid var(--line);border-radius:5px;color:var(--muted)}.avatar{background:#e9eee7;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;color:var(--green);font-size:12px;font-weight:700}
.page{max-width:1512px;margin:0 auto;padding:30px 36px 48px}.breadcrumb{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:9px;margin-bottom:21px}.title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px}.title-row p{margin-top:8px;color:var(--muted)}.flex{display:flex;align-items:center;gap:10px}.spread{display:flex;justify-content:space-between;align-items:center;gap:12px}.stack{display:grid;gap:16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;border-radius:9px;background:var(--green);color:white;font-weight:600;font-size:13px;border:1px solid var(--green);min-height:42px}.btn:hover:not(:disabled){background:var(--green-dark)}.btn.secondary{background:#fff;color:var(--ink);border-color:#d9e1d9}.btn.secondary:hover:not(:disabled){background:#f2f6f0}.btn.light{background:var(--mint);border-color:var(--mint);color:var(--green)}.btn.small{padding:7px 12px;min-height:34px;font-size:12px}.btn.full{width:100%}.text-btn{color:var(--green);font-weight:600;font-size:12px;display:inline-flex;align-items:center;gap:6px}.pill{font-size:11px;display:inline-flex;align-items:center;gap:5px;border-radius:6px;background:#edf3ed;padding:3px 7px;color:var(--green);white-space:nowrap}.pill.amber{color:var(--amber);background:var(--amber-bg)}.pill.gray{color:#78827c;background:#f0f2ee}.pill.red{background:#fbeeea;color:var(--red)}.dot{display:inline-block;width:6px;height:6px;background:currentColor;border-radius:50%}.card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:23px}.card-header{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:17px}.divider{height:1px;background:var(--line);margin:20px 0}.notice{background:#edf3ed;border:1px solid #dfebe0;border-radius:9px;padding:11px 13px;font-size:12px;color:#50675b;line-height:1.8}.notice.amber{background:#fff8e9;border-color:#f0e4c9;color:#977033}.notice.error{background:#fff0ec;border-color:#f2cfc7;color:var(--red)}
.hero{background:#e9eee3;border:1px solid #dfe6d8;border-radius:19px;display:grid;grid-template-columns:1.12fr 1fr;overflow:hidden;min-height:330px}.hero-copy{padding:35px 38px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.hero-copy h1{font-size:38px;margin:12px 0 16px;letter-spacing:1px}.hero-copy p{max-width:440px;color:#66725f;line-height:1.9;margin-bottom:24px}.hero-photo{position:relative;min-height:300px;overflow:hidden}.hero-photo img{width:100%;height:100%;position:absolute;object-fit:cover;object-position:center}.hero-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#e9eee330,transparent 30%)}.photo-caption{position:absolute;bottom:16px;left:16px;z-index:1;background:#fffE;backdrop-filter:blur(8px);border-radius:9px;padding:10px 14px;font-size:12px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap}.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0}.stat{padding:19px 21px;background:#fff;border:1px solid var(--line);border-radius:13px}.stat strong{font-size:25px;font-weight:650;margin-right:5px}.stat span{font-size:12px;color:var(--muted)}.stat label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}.section-heading{display:flex;justify-content:space-between;align-items:center;margin:30px 0 15px}.overview-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.step-overview{padding:23px;text-align:left;transition:border-color .2s,transform .2s;cursor:pointer;position:relative}.step-overview:hover{border-color:#91b4a1;transform:translateY(-2px)}.step-overview .step-num{color:#99ae9c;font-size:24px;font-family:Georgia,serif;margin-right:10px}.step-overview p{color:var(--muted);font-size:12px;margin:13px 0 18px;line-height:1.8}.step-overview .tags{display:flex;gap:6px}.bottom-hint{margin-top:25px;display:flex;justify-content:space-between;color:var(--muted);font-size:11px;gap:16px}
.workspace{display:grid;grid-template-columns:210px minmax(0,1fr);gap:24px;align-items:start}.sidebar{position:sticky;top:103px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 10px}.sidebar-title{font-size:11px;font-weight:600;color:var(--muted);padding:0 10px;margin:2px 0 12px}.step-item{width:100%;display:flex;align-items:center;gap:11px;padding:12px 10px;border-radius:9px;text-align:left;margin:3px 0;font-size:13px}.step-item .num{width:27px;height:27px;border-radius:8px;background:#f2f4ef;display:grid;place-items:center;font-size:11px;color:#89958b}.step-item.active{background:#edf5ed;color:var(--green);font-weight:700}.step-item.active .num{background:var(--green);color:#fff}.step-item .indicator{margin-left:auto;font-size:11px;color:#90a596}.step-item.completed .num{background:#e6f0e5;color:var(--green)}.side-footer{margin:18px 10px 2px;padding-top:15px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);line-height:1.9}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:20px;align-items:start}.workspace-main{min-width:0}.step-heading{margin-bottom:20px}.step-heading h2{font-size:27px;margin:6px 0}.step-heading p{font-size:13px;color:var(--muted);max-width:730px}.progress-line{height:4px;border-radius:3px;background:#e4eae1;overflow:hidden;margin-top:15px}.progress-line i{display:block;height:100%;background:var(--green)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.field{display:block}.field.full{grid-column:1/-1}.field-label{font-size:12px;font-weight:600;display:block;margin-bottom:7px}.field-hint{font-size:11px;color:var(--muted);margin-top:6px}.input-unit{position:relative}.input-unit input{padding-right:45px}.input-unit span{position:absolute;right:13px;top:11px;color:var(--muted);font-size:12px}.evidence-preview{position:relative;border-radius:11px;overflow:hidden;background:#edf1eb;aspect-ratio:16/9;display:grid;place-items:center}.evidence-preview img{width:100%;height:100%;object-fit:contain;position:absolute;inset:0}.image-meta{position:absolute;left:12px;bottom:12px;background:#fffE;border:1px solid #fff8;border-radius:6px;font-size:10px;padding:4px 8px;max-width:90%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.image-expand{position:absolute;right:10px;top:10px;z-index:2;background:#fffE;border-radius:7px;padding:6px;display:grid;place-items:center}.empty-upload{text-align:center;padding:25px;color:var(--muted)}.empty-upload .icon{width:34px;height:34px;color:#9caf9f;margin-bottom:12px}.empty-upload strong{display:block;font-size:14px;font-weight:500}.empty-upload p{font-size:11px;margin-top:5px}.upload-actions{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}.file-input{display:none}.save-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.ref-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:15px}.ref-thumb{border:1px solid var(--line);padding:0;border-radius:8px;overflow:hidden;text-align:left;background:#fff}.ref-thumb img{width:100%;height:65px;object-fit:cover;display:block}.ref-thumb span{padding:6px 7px;display:block;font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.aside-stack{display:grid;gap:17px}.agent-card{border-top:3px solid var(--green)}.agent-brand{display:flex;align-items:center;gap:9px}.agent-orb{width:35px;height:35px;border-radius:12px;display:grid;place-items:center;background:#e4f1e8;color:var(--green)}.agent-card .section-label{font-size:11px;color:var(--muted);margin:16px 0 7px}.fact-list{margin:0;padding-left:18px;font-size:12px;line-height:1.9;color:#496455}.feedback-text{font-size:12px;line-height:1.9;white-space:pre-wrap}.score-number{font-size:33px;color:var(--green);font-weight:650;line-height:1.3}.score-number small{font-size:13px;color:var(--muted);font-weight:400}.score-mini{display:flex;justify-content:space-between;font-size:12px;padding:8px 0;border-bottom:1px solid #edf0e9}.score-mini:last-child{border:0}.agent-empty{padding:12px 0;font-size:12px;color:var(--muted);line-height:1.95}.agent-empty ol{padding-left:18px;margin:12px 0}.trace-list{margin-top:12px;display:grid;gap:9px}.trace-item{padding-left:13px;border-left:2px solid #c7dfd0;font-size:11px}.trace-item strong{display:block;font-size:11px;color:var(--green)}.trace-item span{color:var(--muted)}.loading-dots{display:inline-flex;gap:4px}.loading-dots i{width:5px;height:5px;border-radius:50%;background:var(--green);animation:pulse 1.4s infinite}.loading-dots i:nth-child(2){animation-delay:.2s}.loading-dots i:nth-child(3){animation-delay:.4s}@keyframes pulse{0%,100%{opacity:.3;transform:translateY(0)}50%{opacity:1;transform:translateY(-3px)}}.chat-list{display:grid;gap:10px;max-height:290px;overflow:auto;margin:14px 0;scrollbar-width:thin}.chat-message{font-size:12px;white-space:pre-wrap;line-height:1.8;padding:10px 11px;border-radius:9px;background:#f3f6f0}.chat-message.user{background:#e8f1ea;margin-left:20px}.chat-input{display:flex;gap:7px}.chat-input input{min-width:0;font-size:12px;padding:9px}.chat-input button{padding:8px 10px;min-width:38px}.question-chip{text-align:left;padding:5px 0;font-size:11px;color:var(--green)}.exercise{background:#f6f8f2;border-radius:10px;padding:13px;margin-top:13px}.exercise p{font-size:12px;margin:8px 0}.option{display:block;text-align:left;border:1px solid #dce5d8;background:#fff;border-radius:7px;padding:9px 10px;font-size:11px;width:100%;margin-top:7px}
.gallery-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.asset-card{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#fff;cursor:pointer;transition:transform .2s}.asset-card:hover{transform:translateY(-3px)}.asset-card img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}.asset-card .asset-body{padding:14px}.asset-card h4{font-size:12px;margin-bottom:8px}.filter-bar{display:flex;gap:8px;margin:20px 0}.filter-button{padding:7px 15px;border-radius:7px;font-size:12px;border:1px solid var(--line);background:#fff}.filter-button.active{background:var(--green);color:white;border-color:var(--green)}.modal-mask{position:fixed;inset:0;z-index:100;background:#182b26aa;backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;padding:24px}.modal{background:var(--paper);border-radius:18px;max-width:1080px;width:100%;max-height:90vh;overflow:auto;padding:26px;box-shadow:0 24px 120px #0004}.modal .gallery-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.modal-close{background:#fff;border:1px solid var(--line);border-radius:50%;width:32px;height:32px}.lightbox{max-width:1250px}.lightbox img{max-width:100%;max-height:74vh;display:block;margin:auto}.lightbox-caption{font-size:12px;color:var(--muted);margin-top:12px}
.report-top{display:grid;grid-template-columns:1.2fr 1fr;gap:20px;margin-bottom:22px}.report-score{background:#eaf0e4;border-color:#dce6d7}.report-score .big{font-size:65px;letter-spacing:-2px;font-weight:600;line-height:1.3;margin:13px 0}.report-score .big span{font-size:23px;color:#889784;font-weight:400}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:12px}th{text-align:left;color:var(--muted);font-weight:500;background:#f8f9f5;padding:12px}td{padding:15px 12px;border-bottom:1px solid var(--line);vertical-align:top}td:first-child{font-weight:600}tr:last-child td{border-bottom:0}.history-item{padding:12px 0;border-bottom:1px solid var(--line);font-size:12px}.history-item:last-child{border:0}.history-item time{font-size:10px;color:var(--muted);display:block;margin-bottom:3px}.history-compare{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:12px}.history-box{border:1px solid var(--line);border-radius:8px;padding:11px;font-size:11px}.history-box strong{font-size:17px;display:block;color:var(--green)}
.teacher-tabs{display:flex;gap:10px;margin-bottom:22px}.teacher-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:22px}.run-card{background:#fff;border:1px solid var(--line);border-radius:11px;padding:15px;margin-bottom:10px;text-align:left;width:100%}.run-card.active{border-color:var(--green);background:#f0f6ef}.run-card .small{margin-top:7px}.review-row{padding:18px 0;border-bottom:1px solid var(--line)}.review-row:last-child{border:0}.review-fields{display:grid;grid-template-columns:105px minmax(0,1fr) auto;gap:10px;align-items:end;margin-top:12px}.review-fields input{font-size:12px}.teacher-table textarea{min-height:75px;font-size:12px}.teacher-table input{max-width:85px}.teacher-table th:first-child{width:110px}.teacher-table th:last-child{width:90px}.empty-state{padding:55px 30px;text-align:center;color:var(--muted);background:#fff;border:1px dashed #cfdbcd;border-radius:14px}.empty-state h3{margin:12px 0 7px;color:var(--ink)}.empty-state p{margin-bottom:20px;font-size:12px}.arch-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:23px 0}.arch-card{min-height:170px}.arch-card p{font-size:12px;line-height:1.9;color:var(--muted);margin-top:10px}.arch-index{font-family:Georgia,serif;color:#b6c8b6;font-size:30px}.model-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:17px 0;border-bottom:1px solid var(--line)}.model-row:last-child{border:0}.model-row p{color:var(--muted);font-size:12px;margin-top:4px}.flowline{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:23px;background:#eaf1e6;border-radius:13px;font-size:12px}.flowline b{background:#fff;border:1px solid #d8e4d2;padding:12px 17px;border-radius:9px}.flowline span{color:#95aa96}.resume-bar{margin:18px 0;display:flex;align-items:center;justify-content:space-between;gap:15px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:16px 20px}.resume-bar p{font-size:12px;color:var(--muted)}.demo-banner{background:#edf5ff;border-radius:14px;padding:14px 16px;margin:0 0 18px;font-size:13px;color:#3d6ea3;line-height:1.75}.student-score{font-size:18px;font-weight:650;min-width:40px;text-align:right}.student-evidence{margin:12px 0 4px;display:grid;gap:10px;font-size:13px;line-height:1.75}.student-evidence b{display:block;font-size:11px;color:var(--muted);font-weight:600;margin-bottom:3px}
#toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);max-width:min(600px,90vw);z-index:200;padding:12px 20px;border-radius:10px;background:#213b31;color:#fff;box-shadow:0 8px 30px #0002;font-size:13px;opacity:0;pointer-events:none;transition:.2s}#toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}#toast.error{background:#8b3d32}
@media(min-width:1700px){.page{max-width:1630px}.content-grid{grid-template-columns:minmax(0,1fr) 360px}}
@media(max-width:1150px){.topbar{padding:0 22px;gap:18px}.topnav{gap:18px}.page{padding:24px}.content-grid{grid-template-columns:minmax(0,1fr)}.aside-stack{grid-template-columns:1fr 1fr;align-items:start}.workspace{grid-template-columns:190px 1fr;gap:20px}.gallery-grid{grid-template-columns:repeat(3,1fr)}.local-tag{display:none}.hero-copy{padding:27px}.hero-copy h1{font-size:31px}}
@media(max-width:780px){.topbar{height:auto;min-height:67px;flex-wrap:wrap;padding:13px 17px;gap:10px}.brand strong{font-size:17px}.brand small{font-size:9px}.brand-icon{width:34px;height:34px;font-size:23px}.topnav{order:3;width:100%;gap:25px;height:37px}.topnav button{font-size:12px}.header-right{margin-left:auto}.avatar{display:none}.role-picker{width:115px}.page{padding:20px 17px 35px}.title-row{flex-direction:column;gap:13px}.title-row h1{font-size:27px}.hero{grid-template-columns:1fr}.hero-copy{padding:26px}.hero-copy h1{font-size:31px}.hero-photo{min-height:205px}.stat-row{grid-template-columns:repeat(2,1fr);gap:10px;margin:16px 0}.stat{padding:14px 16px}.stat strong{font-size:23px}.overview-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.step-overview{padding:16px}.step-overview h3{font-size:14px}.step-overview .step-num{font-size:19px}.step-overview .tags{flex-wrap:wrap}.workspace{display:block}.sidebar{position:static;padding:9px;margin-bottom:20px;overflow-x:auto;display:flex;gap:5px;border-radius:11px;scrollbar-width:thin}.sidebar-title,.side-footer{display:none}.step-item{width:auto;white-space:nowrap;padding:8px;gap:6px;margin:0;flex-shrink:0;font-size:11px}.step-item .num{width:23px;height:23px;font-size:10px}.step-item .indicator{display:none}.card{padding:18px;border-radius:12px}.aside-stack{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.step-heading h2{font-size:24px}.save-bar{align-items:stretch}.save-bar>.flex{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:7px}.btn{font-size:12px;padding:10px 13px}.gallery-grid,.modal .gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.asset-card .asset-body{padding:10px}.asset-card h4{font-size:11px}.report-top{grid-template-columns:1fr}.report-score .big{font-size:52px}.teacher-layout{grid-template-columns:1fr}.teacher-layout>aside{display:flex;gap:8px;overflow:auto}.run-card{min-width:180px;width:180px}.review-fields{grid-template-columns:85px minmax(0,1fr)}.review-fields .btn{grid-column:1/-1}.arch-grid{grid-template-columns:1fr}.arch-card{min-height:auto}.modal-mask{padding:10px}.modal{padding:16px}.bottom-hint{flex-direction:column;gap:5px}.resume-bar{align-items:flex-start;gap:10px;flex-direction:column}.flowline{justify-content:center;padding:15px;gap:7px}.flowline b{padding:9px;font-size:11px}}
@media print{.topbar,.sidebar,.btn,.text-btn,.bottom-hint,#toast{display:none!important}.page{padding:0}.workspace{display:block}.card{break-inside:avoid;box-shadow:none}.report-top{grid-template-columns:1fr 1fr}body{background:white}.page{max-width:none}}