:root{--bg:#f5f3ed;--paper:#fffefa;--ink:#263b35;--muted:#7a827a;--line:#e4e6dc;--green:#28594b;--light:#eaf0e6;--gold:#b7873c;--red:#a34f38;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-size:15px}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit;color:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);border-radius:9px;padding:10px 15px;background:var(--paper);min-height:43px;font-weight:550}button:hover{background:var(--light);border-color:#bdcbb9}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--green);border-color:var(--green);color:white}button.danger{color:var(--red)}button.flat{background:transparent}button.small{font-size:13px;padding:6px 11px;min-height:34px}a{color:var(--green);text-underline-offset:4px}input,select,textarea{padding:11px 12px;border:1px solid #dce0d5;border-radius:8px;background:white;width:100%;outline:none}textarea{resize:vertical;line-height:1.7}input:focus,textarea:focus,select:focus{border-color:var(--green);box-shadow:0 0 0 3px #28594b15}:focus-visible{outline:3px solid #b7873c;outline-offset:3px}label{display:block;margin:14px 0 7px;font-size:13px;color:#647267}h1,h2,h3,p{margin-top:0}h1{font-size:28px;font-weight:650;letter-spacing:-.7px}h2{font-size:18px;font-weight:650}h3{font-size:15px}p{line-height:1.7}small,.muted{color:var(--muted)}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--gold);font-weight:650;margin-bottom:10px}.shell{display:grid;grid-template-columns:218px minmax(0,1fr);min-height:100vh}.sidebar{background:var(--paper);border-right:1px solid var(--line);padding:30px 20px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:11px;font-weight:650;font-size:18px;margin-bottom:42px}.brand svg{width:34px;height:34px}.sidebar nav{display:grid;gap:8px}.sidebar nav button{text-align:left;background:transparent;border-color:transparent;font-size:14px;padding:12px 15px}.sidebar nav button.active{background:var(--light);color:var(--green)}.side-bottom{margin-top:auto;border-top:1px solid var(--line);padding-top:20px;font-size:12px;line-height:1.9;color:var(--muted)}.side-bottom strong{color:var(--ink)}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#94b59b;margin-right:6px}.dot.off{background:#ba9a70}.main{padding:30px 36px;max-width:1680px;width:100%;margin:auto}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}.topbar h1{margin-bottom:7px}.top-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.tag{font-size:12px;border:1px solid var(--line);padding:6px 10px;border-radius:30px;background:var(--paper);white-space:nowrap}.tag.green{color:var(--green);background:var(--light);border-color:transparent}.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin-bottom:24px}.stat{padding:20px 23px;background:var(--paper);border:1px solid var(--line);border-radius:13px;display:flex;justify-content:space-between;align-items:center}.stat strong{font-size:29px;letter-spacing:-1px;font-weight:600}.stat small{display:block;font-size:12px;margin-bottom:8px}.stat .glyph{font-size:23px;color:#a5b8a1}.workgrid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(300px,1fr);gap:22px;align-items:start}.panel{background:var(--paper);border:1px solid var(--line);border-radius:13px;overflow:hidden;margin-bottom:22px}.panel-head{padding:20px 23px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}.panel-head h2{margin:0}.panel-body{padding:22px 23px}.preview{background:#e3dece;aspect-ratio:16/9;position:relative}.preview iframe{border:0;width:100%;height:100%;display:block}.preview-label{position:absolute;left:12px;bottom:12px;background:#ffffffde;border-radius:5px;padding:4px 8px;font-size:11px;pointer-events:none}.control-row{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.control-row .count{margin:auto;color:var(--muted);font-variant-numeric:tabular-nums}.control-row+.control-row{margin-top:12px}.page-select{font-size:13px}.timer-row{display:flex;align-items:center;justify-content:space-between;margin:20px 0}.clock{font-size:40px;letter-spacing:-1px;font-variant-numeric:tabular-nums;font-weight:550}.task-info{font-size:13px;line-height:1.8;color:#667465;white-space:pre-wrap}.divider{height:1px;background:var(--line);margin:20px 0}.task-pills{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.task-pills button{text-align:left;font-size:13px;padding:12px;line-height:1.5}.task-pills button.selected{border-color:var(--green);background:var(--light)}.task-pills b{display:block;font-size:14px}.task-pills span{display:block;color:var(--muted);font-size:11px;margin-top:4px}.field-row{display:grid;grid-template-columns:1fr 120px;gap:14px}.wide{width:100%}.result-toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.result-toolbar select{width:auto;max-width:320px}.table-scroll{overflow:auto}table{border-collapse:collapse;width:100%;font-size:13px;text-align:left;white-space:nowrap}th{color:var(--muted);font-weight:500;background:#f7f8f2}td,th{padding:13px 22px;border-bottom:1px solid var(--line)}td.wrap{white-space:normal;min-width:170px;max-width:400px;line-height:1.6}.empty{text-align:center;padding:38px 20px;color:var(--muted);line-height:1.8}.empty .empty-icon{font-size:29px;display:block;color:#b1bea8;margin-bottom:12px}.progress{height:5px;border-radius:5px;background:#e9eddf;overflow:hidden}.progress i{display:block;height:100%;background:#8ca582}.progress-label{display:flex;justify-content:space-between;margin:17px 0 9px;font-size:12px;color:var(--muted)}.notice{font-size:12px;background:#f5f0e3;padding:13px 15px;border-radius:8px;color:#806c4e;line-height:1.8}.notice a{color:inherit}.view[hidden],[hidden]{display:none!important}.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:#263b35;color:white;padding:13px 22px;z-index:100;border-radius:10px;box-shadow:0 5px 30px #263b3520;max-width:90vw;font-size:14px}.modal-backdrop{position:fixed;inset:0;z-index:80;background:#1d302c66;display:grid;place-items:center;padding:25px}.modal{width:min(760px,100%);max-height:90vh;overflow:auto;background:var(--paper);border-radius:15px;padding:27px}.modal h2{margin-bottom:16px}.modal pre{white-space:pre-wrap;font:inherit;line-height:1.9;word-break:break-word}.join-code{font-size:48px;letter-spacing:12px;color:var(--green);margin:18px 0}.url-box{word-break:break-all;background:var(--light);padding:14px;border-radius:8px;line-height:1.7;font-size:13px}.inline-check{display:flex;gap:8px;align-items:center;font-size:13px;margin:0}.inline-check input{width:17px;height:17px}.selected-count{font-size:13px;color:var(--green)}.student-body{max-width:760px;margin:auto;padding:30px 22px 70px}.student-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}.student-header .brand{margin:0}.student-card{padding:28px;background:var(--paper);border:1px solid var(--line);border-radius:14px;margin-bottom:20px}.student-card h1{font-size:26px}.student-time{position:sticky;top:0;padding:14px 0;background:var(--bg);display:flex;align-items:center;justify-content:space-between;z-index:3}.student-time .clock{font-size:29px}.cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:24px 0}.cards button{display:flex;gap:13px;align-items:center;padding:19px 15px;text-align:left;font-size:17px;background:#fffefa}.cards button b,.order-item b{background:#e9e2d0;color:#806034;display:grid;place-items:center;width:35px;height:35px;flex-shrink:0;border-radius:7px}.cards button.selected{border:2px solid var(--green);background:var(--light)}.order-list{display:grid;gap:12px;margin:24px 0}.order-item{display:flex;align-items:center;gap:12px;border:1px solid var(--line);padding:13px;border-radius:10px;background:var(--paper)}.order-item span{margin-right:auto}.writing-link{display:block;padding:18px;border:1px solid #d5dfce;background:var(--light);border-radius:9px;text-decoration:none;margin:20px 0}.screen-body{background:#111b17;color:#f6f3e7;overflow:hidden}.screen-body iframe{position:fixed;inset:0;width:100vw;height:100vh;border:0}.screen-task{position:fixed;right:20px;top:18px;max-width:min(600px,70vw);padding:12px 20px;background:#fff9e9f5;color:#4d3d21;border:1px solid #c6aa78;border-radius:10px;display:flex;align-items:center;gap:22px;z-index:4;font-size:clamp(14px,1.6vw,30px);box-shadow:0 4px 15px #0001}.screen-task small{display:block;font-size:.65em;color:#897045}.screen-task strong{font-size:1.55em;font-variant-numeric:tabular-nums}.projection{position:fixed;inset:0;z-index:6;background:#f3efe2;color:#443b27;padding:clamp(25px,4vw,75px);overflow:auto}.projection h1{font-size:clamp(26px,3vw,60px);margin-bottom:35px}.projection-grid{display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));gap:35px}.projected-work{background:#fffdf4;border:1px solid #cebd99;padding:30px;border-radius:13px;word-break:break-word}.projected-work h2{font-size:clamp(23px,2.5vw,45px);color:#7c5933}.projected-work p{white-space:pre-wrap;font-size:clamp(22px,2.1vw,42px);line-height:1.85}.projected-work .card-order{font-size:clamp(24px,3vw,65px);color:var(--green);line-height:2}.screen-error{position:fixed;bottom:20px;left:20px;background:#a34f38;color:white;padding:10px 15px;z-index:8}.screen-tools{position:fixed;bottom:12px;right:12px;z-index:9;opacity:0;transition:opacity .2s}.screen-tools:hover,.screen-tools:focus-within{opacity:1}.screen-tools button{background:#fff9e9;color:#443b27}.auth-message{max-width:600px;margin:15vh auto;padding:35px;line-height:1.9}
@media(min-width:1500px){.main{padding:40px 50px}.workgrid{grid-template-columns:minmax(0,1.5fr) minmax(330px,1fr)}}
@media(max-width:1100px){.shell{grid-template-columns:175px minmax(0,1fr)}.main{padding:25px 22px}.sidebar{padding:27px 13px}.workgrid{grid-template-columns:1fr}.topbar{align-items:flex-start}.top-actions{justify-content:flex-end}.brand{font-size:16px}.stat{padding:17px}.stat strong{font-size:25px}}
@media(max-width:700px){.shell{display:block}.sidebar{height:auto;position:static;display:block;padding:16px;border-right:0;border-bottom:1px solid var(--line)}.brand{margin-bottom:15px}.sidebar nav{display:flex;gap:6px}.sidebar nav button{padding:9px 11px;font-size:13px}.side-bottom{display:none}.main{padding:22px 16px}.topbar{display:block}.top-actions{justify-content:flex-start;margin-top:16px}.stats{gap:8px}.stat{padding:13px;display:block}.stat strong{font-size:23px}.stat .glyph{display:none}.panel-head,.panel-body{padding:17px}.panel-head{flex-wrap:wrap}.field-row{grid-template-columns:1fr 95px}.student-card{padding:20px}.cards{gap:8px}.cards button{padding:14px 10px;font-size:15px;gap:7px}.projection-grid{grid-template-columns:1fr}.join-code{font-size:37px;letter-spacing:8px}.topbar h1{font-size:25px}}