:root{--bg:#101417;--panel:#f7f3e8;--panel-2:#e8f0ee;--ink:#14191f;--muted:#64706f;--line:#14191f1f;--brand:#d84f2a;--brand-dark:#9c2f1a;--green:#176b5b;--gold:#f0b429;--white:#fff}*{box-sizing:border-box}html,body{min-height:100%;color:var(--ink);background:linear-gradient(135deg, #d84f2a29, transparent 32%), linear-gradient(315deg, #176b5b2e, transparent 34%), var(--bg);margin:0;font-family:Arial,Microsoft YaHei,sans-serif}button,input,select,textarea{font:inherit}button,.button-link{min-height:42px;color:var(--white);background:var(--brand);cursor:pointer;border:0;border-radius:8px;justify-content:center;align-items:center;padding:0 16px;font-weight:700;text-decoration:none;display:inline-flex}button:hover,.button-link:hover{background:var(--brand-dark)}button:disabled{cursor:not-allowed;opacity:.5}button.ghost{color:var(--ink);border:1px solid var(--line);background:#ffffff8f}button.small{min-height:32px;padding:0 10px;font-size:13px}input,select,textarea{border:1px solid var(--line);width:100%;color:var(--ink);background:#ffffffc2;border-radius:8px;padding:10px 12px}textarea{resize:vertical;min-height:44px}.screen{width:min(1120px,100% - 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32px);padding:20px;overflow:auto}.modal h2{margin-top:0}.result-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:16px 0;display:grid}.result-card{border:1px solid var(--line);background:#fbfaf6;border-radius:8px;padding:12px}.result-card strong,.result-card span{display:block}.result-card span{color:var(--muted);margin-top:4px;font-size:13px}.task{flex-direction:column;justify-content:space-between;min-height:180px;display:flex}.admin{gap:16px;display:grid}.admin-login{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:12px;display:grid}label{color:var(--muted);gap:6px;font-size:13px;font-weight:700;display:grid}.check{align-items:center;gap:8px;display:flex}.check input{width:auto}.form-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:12px;display:grid}.admin-table{gap:10px;display:grid}.prize-editor{border-bottom:1px solid var(--line);grid-template-columns:1.1fr 120px 110px 110px 90px minmax(180px,1fr) 72px;align-items:center;gap:8px;padding-bottom:10px;display:grid}@media (max-width:860px){.topbar{align-items:flex-start}.tabs{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.tabs button{min-height:38px;padding:0 6px;font-size:13px}.grid.two,.grid.three,.draw-layout,.form-grid,.admin-login{grid-template-columns:1fr}.prize-editor{grid-template-columns:1fr 1fr}.result-grid{grid-template-columns:1fr}}@media (max-width:520px){.screen{width:min(100% - 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