:root{--blue:#1768e5;--blue-dark:#104fae;--ink:#172033;--muted:#687386;--line:#e4e9f1;--bg:#f4f7fb;--card:#fff;--green:#168a5b;--orange:#e58a16;--red:#d84343;--shadow:0 12px 32px rgba(22,42,77,.08);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink)}*{box-sizing:border-box}body{margin:0;background:var(--bg);line-height:1.55}.topbar{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1180px)/2));position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);font-weight:750}.brand img{width:34px;height:34px;border-radius:9px;object-fit:cover}.page{max-width:1180px;margin:0 auto;padding:42px 24px 72px}.page.narrow{max-width:480px;padding-top:80px}footer{text-align:center;color:#9099a8;padding:26px;font-size:13px}.page-head,.section-head,.row,.actions,.inline-form,.between{display:flex;align-items:center}.page-head{justify-content:space-between;gap:24px;margin-bottom:28px}.page-head h1{font-size:34px;margin:3px 0}.page-head p{margin:0;color:var(--muted)}.section-head{justify-content:space-between;margin:34px 0 12px}.section-head h2{margin:0}.eyebrow{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.14em}.crumb{display:flex;gap:8px;color:var(--muted);font-size:14px;margin-bottom:18px}.crumb a,a{color:var(--blue);text-decoration:none}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow)}.card h2{margin-top:0}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px}.class-card{color:var(--ink);transition:.2s}.class-card:hover{transform:translateY(-2px);border-color:#bdd2f5}.class-card h2{margin:24px 0}.between{justify-content:space-between}.metric-row{display:flex;gap:22px;color:var(--muted);font-size:13px}.metric-row strong{color:var(--ink);font-size:21px;margin-right:4px}.status{display:inline-block;padding:3px 9px;border-radius:99px;font-size:12px;font-weight:700;background:#edf1f7;color:#5e6a7e}.status.active,.status.published,.status.processed,.status.submitted{background:#e5f7ef;color:var(--green)}.status.draft,.status.pending,.status.updated,.status.postponed{background:#fff4df;color:#a25e07}.status.closed,.status.archived,.status.waived{background:#eff1f5;color:#596374}.status.not_started,.status.failed{background:#fff0f0;color:var(--red)}.dot{width:9px;height:9px;border-radius:50%;display:inline-block;margin-right:7px;background:#aeb7c5}.dot.processed{background:var(--green)}.dot.pending{background:var(--orange)}.dot.empty{background:#b6beca}.notice{padding:13px 16px;border-radius:10px;margin-bottom:18px}.notice.success{background:#e8f8f1;color:#13734d}.notice.error{background:#fff0f0;color:#b63232}.muted{color:var(--muted)}.late{color:var(--red);margin-left:7px}.hidden{display:none!important}.stack{display:flex;flex-direction:column;gap:18px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.span-2{grid-column:1/-1}label{display:flex;flex-direction:column;gap:7px;font-size:14px;font-weight:650}input,select,textarea{font:inherit;border:1px solid #ccd4df;border-radius:9px;padding:10px 12px;background:#fff;color:var(--ink);min-width:0}input:focus,select:focus,textarea:focus,.rich-editor:focus{outline:3px solid rgba(23,104,229,.15);border-color:var(--blue)}button,.button{border:0;border-radius:9px;padding:10px 17px;font:inherit;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.primary{background:var(--blue);color:#fff}.primary:hover{background:var(--blue-dark)}.secondary{background:#edf3fc;color:#155cbf}.danger{background:#fff0f0;color:#bf3434}.mini{padding:7px 10px;background:#edf3fc;color:var(--blue)}.link-button{background:transparent;color:var(--blue);padding:4px}.actions{gap:10px;flex-wrap:wrap}.actions.end{justify-content:flex-end;margin-top:22px}.inline-form{gap:12px;flex-wrap:wrap}.login-card h1{font-size:30px;margin-bottom:5px}.login-card .muted{margin-top:0}.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:15px}table{width:100%;border-collapse:collapse;min-width:750px}th,td{text-align:left;padding:14px 15px;border-bottom:1px solid var(--line);vertical-align:middle}th{font-size:12px;color:#697588;background:#fafbfd;text-transform:none}tr:last-child td{border-bottom:0}.right{text-align:right}.empty{text-align:center!important;color:var(--muted);padding:38px!important}.contact{display:block;margin:2px 0;font-size:13px}.contact em{font-style:normal;color:#8a94a3;background:#f1f3f6;padding:2px 6px;border-radius:5px;margin-left:5px}.split{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}.danger-zone{margin-top:36px;color:var(--red)}.danger-zone form{margin-top:16px}.toolbar{display:flex;gap:6px;flex-wrap:wrap;padding:10px;background:#f4f6f9;border:1px solid var(--line);border-radius:10px 10px 0 0;position:sticky;top:68px;z-index:10}.toolbar button{background:#fff;border:1px solid var(--line);padding:6px 10px}.rich-editor{min-height:300px;padding:24px;border:1px solid var(--line);border-top:0;border-radius:0 0 10px 10px;background:#fff}.rich-editor h1{font-size:30px}.rich-editor h2{font-size:23px}.dossier-paper{padding:0;overflow:visible}.dossier-editor{min-height:680px;padding:54px max(32px,10%);font-family:"Songti SC",SimSun,serif;font-size:17px;line-height:1.85}.asset-row{display:grid;grid-template-columns:70px 1fr auto auto;gap:10px;padding:10px 0;border-top:1px solid var(--line);align-items:center}.special-form{display:grid;grid-template-columns:130px 160px minmax(130px,1fr) auto;gap:6px}.matrix th.sticky{position:sticky;left:0;z-index:2;background:#fafbfd}.legend{display:flex;gap:22px;margin:0 0 14px}.contact-line{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}.avatar{width:34px;height:34px;background:#eaf2ff;color:var(--blue);border-radius:50%;display:grid;place-items:center;font-weight:800}.timeline article{display:flex;gap:15px;padding:12px 0;border-bottom:1px solid var(--line)}.timeline article>span{background:#eaf2ff;color:var(--blue);padding:3px 8px;border-radius:7px;height:max-content;font-weight:800}.timeline p{margin:2px 0;color:var(--muted);font-size:13px}
.public-page{max-width:780px}.assignment-hero{text-align:center;padding:25px 0 28px}.assignment-hero h1{font-size:40px;margin:8px 0 20px}.deadline{display:inline-flex;flex-direction:column;background:#eaf2ff;color:#144f9f;padding:10px 24px;border-radius:12px}.deadline span,.deadline small{font-size:12px}.assignment-content{padding:40px;margin-bottom:22px}.prose{font-size:17px;line-height:1.85}.prose img{max-width:100%;border-radius:12px}.download-card{display:flex;gap:14px;align-items:center;padding:15px;background:#f1f6fe;border-radius:12px;margin-top:18px}.download-card>span{font-size:26px}.download-card small{display:block;color:var(--muted)}.auth-card,.submit-card,.result-card{max-width:620px;margin:22px auto}.step-label{font-size:12px;font-weight:800;color:var(--blue);letter-spacing:.1em}.otp-row{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:end;margin:14px 0}.wide{width:100%;padding:13px}.form-message{min-height:22px;color:var(--muted)}.form-message.error{color:var(--red)}.result-card{text-align:center;padding:46px}.success-mark,.lock-mark{width:64px;height:64px;display:grid;place-items:center;margin:auto;border-radius:50%;font-size:30px;background:#e5f7ef;color:var(--green)}.lock-mark{background:#eef3fb;color:var(--blue)}.choice-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px}.choice-tabs label input{position:absolute;opacity:0}.choice-tabs label span{padding:12px;text-align:center;background:#f1f3f6;border:2px solid transparent;border-radius:10px}.choice-tabs label input:checked+span{border-color:var(--blue);background:#eaf2ff;color:var(--blue)}.public-editor{min-height:260px}.dropzone{border:2px dashed #b9c7db;padding:32px;text-align:center;border-radius:14px;background:#fafcff;align-items:center}.submit-note{font-size:13px;color:var(--muted);background:#f6f8fb;padding:12px;border-radius:9px}
@media(max-width:720px){.topbar{height:60px;padding:0 16px}.page{padding:25px 15px 55px}.page-head{align-items:flex-start;flex-direction:column}.page-head h1,.assignment-hero h1{font-size:28px}.card{padding:18px;border-radius:14px}.form-grid,.split{grid-template-columns:1fr}.span-2{grid-column:auto}.metric-row{gap:12px;flex-wrap:wrap}.toolbar{top:60px}.dossier-editor{padding:28px 20px}.special-form{grid-template-columns:1fr}.assignment-content{padding:24px}.otp-row{grid-template-columns:1fr}.otp-row button{width:100%}.brand span{font-size:14px}.asset-row{grid-template-columns:60px 1fr}.asset-row a,.asset-row button{grid-column:auto}.actions .button,.actions button{flex:1}.public-page{padding-left:12px;padding-right:12px}}
.rich-editor img{max-width:100%;height:auto;border-radius:12px}