:root{--bg:#f6f6f0;--paper:#fff;--ink:#183a35;--text:#2b3935;--muted:#727f78;--line:#dde4da;--green:#17604a;--light:#e6efe2;--gold:#b78946;--danger:#a64034;--radius:14px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);padding:10px 16px;border-radius:8px;background:white;color:var(--ink);transition:.15s}button:hover{border-color:var(--green);background:#f0f5ed}button:disabled{opacity:.5;cursor:wait}button.primary{color:white;background:var(--green);border-color:var(--green)}button.primary:hover{background:#104c3b}a{color:var(--green);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 #8cba74;outline-offset:3px}input,select,textarea{border:1px solid var(--line);border-radius:8px;padding:11px 12px;background:#fff;color:var(--text);max-width:100%;width:100%}textarea{resize:vertical;line-height:1.8}label{display:block;font-size:14px;margin-bottom:14px}label input,label select,label textarea{margin-top:7px}input[type=checkbox],input[type=radio]{width:18px;height:18px;margin:0;flex-shrink:0;accent-color:var(--green)}h1,h2,h3,p{margin-top:0}h1{font-size:32px;line-height:1.45;letter-spacing:-.7px;color:var(--ink)}h2{font-size:23px;line-height:1.5;color:var(--ink)}h3{font-size:17px;line-height:1.5;color:var(--ink)}p{line-height:1.75}small{font-size:12px}pre{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;line-height:1.85;margin:0}code{font-family:ui-monospace,SFMono-Regular,monospace;font-size:13px;background:var(--bg);border-radius:4px;padding:2px 5px}.muted{color:var(--muted)}.error{color:var(--danger)}.eyebrow{font-size:11px;font-weight:650;letter-spacing:1.4px;color:var(--green);text-transform:uppercase;margin:0 0 12px}.login-wrap{min-height:100vh;display:grid;place-items:center;background:radial-gradient(ellipse at 15% 20%,#e2ecdc,transparent 55%),var(--bg);padding:24px}.login-card{width:min(430px,100%);padding:40px;border:1px solid var(--line);border-radius:24px;background:white;box-shadow:0 15px 70px #183a3510}.wordmark{display:flex;align-items:center;gap:12px;font-family:Georgia,serif;font-size:28px;color:var(--ink);margin-bottom:32px}.wordmark span{font:11px sans-serif;letter-spacing:2px}.login-card h1{font-size:34px}.login-card form{margin-top:28px}.login-card button{width:100%;display:flex;justify-content:space-between}.login-card>small{display:block;color:var(--muted);margin-top:24px}.sidebar{position:fixed;width:220px;height:100dvh;inset:0 auto 0 0;background:var(--ink);color:#c8d6c9;display:flex;flex-direction:column;padding:30px 18px;z-index:10}.brand{display:flex;gap:12px;align-items:center;color:white;padding:0 10px 30px}.brand b{font:37px Georgia,serif}.brand span{font-size:18px;font-weight:600;line-height:1.45}.brand small{font-size:11px;font-weight:400;color:#a8bcb0;letter-spacing:1px}.sidebar-caption{font-size:10px;letter-spacing:1.7px;padding:14px 12px;color:#819e8b}.sidebar nav{display:flex;flex-direction:column;gap:6px}.sidebar nav a{display:flex;gap:14px;padding:14px 12px;color:#789386;font-size:11px;border-radius:8px}.sidebar nav a span{font-size:14px;color:#d7e2d6}.sidebar nav a.active{background:#30534a;color:#a3c391}.sidebar nav a.active span{color:white;font-weight:600}.sidebar nav a:hover{text-decoration:none;background:#24473f}.sidebar-footer{margin-top:auto;padding:22px 12px 0;border-top:1px solid #315449}.sidebar-footer strong{display:block;font:24px Georgia,serif;margin:7px 0}.sidebar-footer p{font-size:11px;color:#9aae9c;margin:0}.main-shell{margin-left:220px}.topbar{height:72px;padding:0 36px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);background:#fafbf5;font-size:13px}.top-tools{display:flex;gap:18px;align-items:center}.text-button{border:0;background:transparent;padding:4px;font-size:12px;color:var(--muted)}.status{font-size:11px;color:var(--muted);display:flex;gap:6px;align-items:center}.status i{width:6px;height:6px;border-radius:50%;background:#689654}.status.offline i{background:#c68e44}#content{max-width:1400px;margin:auto;padding:36px}.page-footer{color:var(--muted);font-size:11px;text-align:center;padding:16px 24px 28px}.heading-row{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:24px}.heading-row h1{margin:0 0 5px}.heading-row p{font-size:13px;color:var(--muted);margin:0}.time-choice{display:flex;gap:5px;background:var(--light);padding:5px;border-radius:10px}.time-choice button{border:none;background:transparent;padding:9px 13px;font-size:12px}.time-choice button.selected{background:#fff;box-shadow:0 2px 5px #183a3510}.hero{border-radius:var(--radius);background:var(--ink);color:#d5e3d4;padding:30px;display:grid;grid-template-columns:1fr auto;gap:20px;margin-bottom:24px}.hero h2{color:white;font-size:26px;margin-bottom:8px}.hero p{font-size:13px;max-width:650px;margin-bottom:0;color:#afc8b8}.hero .eyebrow{color:#a7c98a}.hero-number{display:flex;align-items:baseline;gap:10px;align-self:center}.hero-number b{font:58px Georgia,serif;color:white}.hero-number span{font-size:12px;color:#afc8b8}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:26px}.card,.panel{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:22px}.card .label{font-size:12px;color:var(--muted)}.card .value{display:block;font:32px Georgia,serif;color:var(--ink);margin:10px 0 6px}.card .detail{font-size:11px;color:var(--muted)}.panel{margin-bottom:20px}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:15px;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:16px}.panel-head h2,.panel-head h3{margin:0}.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,.46fr);gap:20px}.task-row{display:grid;grid-template-columns:30px 1fr auto;gap:12px;align-items:center;padding:16px 0;border-bottom:1px solid #edf0e8}.task-row:last-child{border:0}.task-row .number{font:15px Georgia,serif;color:#95a68d}.task-row h3{font-size:14px;margin:0 0 6px;line-height:1.65}.task-row p{font-size:11px;color:var(--muted);margin:0}.task-row button{font-size:12px;padding:8px 14px}.tag{display:inline-block;font-size:10px;padding:4px 7px;background:var(--light);color:var(--green);border-radius:5px;line-height:1.3;vertical-align:middle;white-space:nowrap}.tag.warn{color:#8b6b35;background:#f6eddd}.tag.error{color:var(--danger);background:#f8e9e4}.tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.empty{padding:30px 20px;text-align:center;color:var(--muted);font-size:14px;line-height:1.8}.filters{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:15px}.filters label{font-size:12px}.filters .wide{grid-column:span 2}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:18px 0}.notice{background:#edf3e7;padding:14px 16px;border-left:3px solid #85ab72;font-size:13px;line-height:1.7;border-radius:0 7px 7px 0;margin:15px 0}.notice.warn{background:#fbf1e3;border-left-color:#d3a162}.question-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(270px,.7fr);gap:20px}.question-layout.no-material{grid-template-columns:1fr}.question-panel{min-width:0}.question-panel h2{font-size:19px;line-height:1.8;white-space:pre-wrap;overflow-wrap:anywhere}.option{display:flex;gap:12px;border:1px solid var(--line);padding:14px;border-radius:9px;cursor:pointer;margin-bottom:10px;align-items:flex-start;font-size:15px;line-height:1.8}.option input{margin-top:5px}.option.selected{border-color:#7aa76b;background:#f2f7ed}.option span{flex:1;overflow-wrap:anywhere}.material-panel{max-height:75vh;overflow:auto;position:sticky;top:20px}.material-panel h3{position:sticky;top:-22px;background:white;padding:8px 0 15px}.material-panel pre{font-size:14px;line-height:1.9}.asset{max-width:100%;height:auto;margin:12px 0;border:1px solid var(--line);border-radius:5px}.asset-link{overflow-wrap:anywhere;display:block;margin:12px 0}iframe.asset{width:100%;height:550px}.timer{font:24px ui-monospace,SFMono-Regular,monospace;color:var(--green)}.checkbox{display:flex;align-items:center;gap:8px;margin:10px 0;font-size:13px}.result{padding:20px;background:#f1f6ec;border:1px solid #c8ddba;border-radius:10px;margin:20px 0}.result.wrong{background:#fcf2ed;border-color:#ead1c7}.result pre{font-size:14px}.result strong{display:block;margin-bottom:12px}.source-row{font-size:12px;overflow-wrap:anywhere;border-bottom:1px solid var(--line);padding:10px 0}.source-row p{margin:0 0 6px}.essay-input{min-height:330px;font-size:16px;line-height:1.9}.review-point{border-bottom:1px solid var(--line);padding:12px 0}.review-point p{font-size:13px;margin:5px 0}.history-entry{border:1px solid var(--line);border-radius:9px;padding:18px;margin:12px 0}.history-entry pre{font-size:14px;max-height:360px;overflow:auto}.compact-table{width:100%;border-collapse:collapse;font-size:13px}.compact-table th,.compact-table td{text-align:left;padding:12px 8px;border-bottom:1px solid var(--line)}.compact-table th{color:var(--muted);font-weight:500}.progress-track{height:6px;background:#e9eee4;border-radius:3px;overflow:hidden;min-width:100px}.progress-fill{height:100%;background:var(--green);width:0}.milestone{border-left:2px solid var(--line);padding:0 0 24px 18px}.milestone:last-child{padding-bottom:0}.milestone small{color:var(--muted)}.milestone p{font-size:13px;margin:6px 0}.pagination{display:flex;justify-content:space-between;align-items:center;font-size:12px;padding-top:15px}details summary{cursor:pointer;color:var(--green);font-size:13px;line-height:1.7}details pre{padding-top:12px}dialog{border:1px solid var(--line);border-radius:18px;padding:30px;width:min(820px,calc(100% - 24px));max-height:90vh;overflow:auto;box-shadow:0 15px 100px #183a3540}dialog::backdrop{background:#183a3570}.close-dialog{float:right;font-size:24px;border:none;padding:0 5px;margin-bottom:15px}#toast{position:fixed;right:24px;bottom:24px;background:var(--ink);color:white;padding:14px 20px;border-radius:10px;z-index:100;font-size:13px;max-width:calc(100% - 48px)}.mock-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(40px,1fr));gap:6px}.mock-grid button{font-size:12px;padding:8px}.mock-grid button.answered{background:var(--light);border-color:#94b682}.mock-grid button.current{background:var(--green);color:white}.question-tools{display:flex;justify-content:space-between;align-items:center;gap:12px}.question-tools button{font-size:12px}.muted-link{font-size:12px;color:var(--muted)}.deadline{color:var(--gold)}.hidden{display:none!important}#workspace[hidden],#login-screen[hidden]{display:none}
@media(max-width:1100px){.sidebar{width:180px;padding:25px 12px}.main-shell{margin-left:180px}#content{padding:26px}.topbar{padding:0 26px}.cards{gap:12px}.card{padding:18px}.split{grid-template-columns:1fr}.question-layout{grid-template-columns:1fr}.material-panel{position:static;max-height:440px}.hero-number b{font-size:46px}}
@media(max-width:700px){.sidebar{height:auto;inset:0 0 auto;width:100%;padding:12px 14px 0;background:var(--ink)}.brand{padding:0 0 9px;gap:8px}.brand b{font-size:23px}.brand span{font-size:14px}.brand br{display:none}.brand small{margin-left:8px}.sidebar-caption,.sidebar-footer{display:none}.sidebar nav{flex-direction:row;overflow:auto;gap:3px;scrollbar-width:none}.sidebar nav a{padding:10px 9px 12px;flex-shrink:0;gap:0;font-size:0;border-radius:7px 7px 0 0}.sidebar nav a span{font-size:12px}.main-shell{margin-left:0;padding-top:86px}.topbar{padding:0 17px;height:49px;font-size:11px}.top-tools{gap:10px}#account-label{display:none}#content{padding:24px 16px}.heading-row{display:block;margin-bottom:18px}.heading-row h1{font-size:27px}.time-choice{width:fit-content;margin-top:15px}.hero{grid-template-columns:1fr;padding:23px}.hero-number{justify-self:start}.hero-number b{font-size:42px}.hero h2{font-size:22px}.cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.card{padding:17px}.card .value{font-size:29px}.panel{padding:19px}.task-row{grid-template-columns:22px 1fr auto;gap:7px}.task-row button{padding:8px 10px}.task-row h3{font-size:13px}.task-row p{line-height:1.6}.filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.filters .wide{grid-column:span 2}.question-panel h2{font-size:18px}.option{padding:12px;font-size:15px}.timer{font-size:21px}.compact-table{font-size:12px}.compact-table th,.compact-table td{padding:10px 5px}.login-card{padding:28px}.material-panel{max-height:400px}.essay-input{min-height:380px}.actions button{flex-grow:1}.panel-head h2{font-size:19px}.question-tools{align-items:flex-start;flex-wrap:wrap}.top-tools .status{font-size:10px}.hero-number span{font-size:11px}dialog{padding:23px}.page-footer{font-size:10px}}

.card .value.small-value{font:600 19px -apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif}