:root{--primary: #ff5a1f;--primary-dark: #e94d16;--primary-soft: #fff4ef;--course: #4b6fc7;--course-soft: #f1f5ff;--border: #e6e8eb;font-family:PingFang SC,Microsoft YaHei,sans-serif;color:#222;background:#f5f6f8;font-synthesis:none}*{box-sizing:border-box}body{min-width:1180px;margin:0;background:#f5f6f8}button{font:inherit;cursor:pointer}.admin-root{min-height:100vh;display:grid;grid-template:56px 1fr / 216px 1fr}.topbar{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-bottom:1px solid var(--border);background:#fff}.brand,.top-actions{display:flex;align-items:center;gap:10px}.brand>span{width:30px;height:30px;display:grid;place-items:center;border-radius:8px;background:var(--primary);color:#fff;font-weight:700}.brand strong{font-size:16px}.top-actions{color:#7f8791;font-size:12px}.top-actions b{margin-left:14px;color:#333;font-size:13px;font-weight:500}.sidebar{padding:18px 12px;border-right:1px solid var(--border);background:#fff}.sidebar p{margin:10px 10px 8px;color:#a0a6ad;font-size:11px}.sidebar nav{display:grid;gap:3px}.sidebar a{padding:10px 12px;border-radius:6px;color:#5d6670;font-size:13px}.sidebar a.active{background:var(--primary-soft);color:var(--primary-dark);font-weight:600}.admin-main{min-width:0;padding:18px 22px 36px}.breadcrumb{margin-bottom:13px;color:#8a9098;font-size:12px}.breadcrumb span{margin:0 6px;color:#c0c4c9}.page-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.page-title h1{margin:0;font-size:22px;font-weight:600}.page-title p{margin:5px 0 0;color:#8a9099;font-size:12px}.page-title-actions{display:flex;align-items:center;gap:8px}.rule-tip{display:flex;align-items:center;gap:7px;padding:8px 11px;border:1px solid #ffd7c7;border-radius:6px;background:#fff8f5;color:#c65b2c;font-size:11px}.app-preview-link{height:34px;display:flex;align-items:center;gap:6px;padding:0 12px;border:1px solid var(--primary);border-radius:6px;background:var(--primary);color:#fff;font-size:11px}.sort-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start}.sort-panel{overflow:hidden;border:1px solid var(--border);border-radius:9px;background:#fff;box-shadow:0 4px 16px #232b350a}.panel-head{display:flex;align-items:center;gap:11px;min-height:76px;padding:14px 16px;border-bottom:1px solid #edf0f2}.panel-symbol{width:40px;height:40px;display:grid;place-items:center;flex:0 0 auto;border-radius:10px;background:linear-gradient(145deg,#ff713b,#ff9a55);color:#fff;font-size:16px;font-weight:700}.panel-symbol.course{background:linear-gradient(145deg,#496fca,#7594df)}.panel-title{min-width:0;flex:1}.panel-title>div{display:flex;align-items:center;gap:7px}.panel-title h2{margin:0;font-size:17px;font-weight:600}.panel-title span{padding:2px 6px;border-radius:10px;background:#f1f2f4;color:#747c85;font-size:10px}.panel-title p{margin:5px 0 0;color:#959ba2;font-size:11px}.home-rule{display:flex;align-items:center;gap:7px;margin:12px 14px;padding:9px 10px;border-radius:6px;background:#fff6f1;color:#b55a34;font-size:11px}.course .home-rule{background:var(--course-soft);color:#536fae}.home-rule b{font-weight:600}.sort-list{height:600px;overflow-y:auto;border-top:1px solid #f0f1f2}.sort-row{min-height:120px;display:grid;grid-template-columns:28px 30px 104px minmax(0,1fr) 54px 62px;align-items:center;gap:8px;padding:10px 12px 10px 9px;border-bottom:1px solid #edf0f2;background:#fff;transition:background .15s,box-shadow .15s,opacity .15s}.sort-row:nth-child(-n+3){background:#fffcfa}.course .sort-row:nth-child(-n+3){background:#fbfcff}.sort-row:hover{background:#fafbfc}.sort-row.dragging{opacity:.45}.sort-row.drag-over{box-shadow:inset 0 2px 0 var(--primary)}.course .sort-row.drag-over{box-shadow:inset 0 2px 0 var(--course)}.drag-handle{width:28px;height:32px;display:grid;place-items:center;padding:0;border:0;background:transparent;color:#b0b5bb;cursor:grab}.drag-handle:active{cursor:grabbing}.position{width:27px;height:27px;display:grid;place-items:center;border-radius:7px;background:#f2f3f5;color:#68717a;font-size:11px;font-weight:600}.sort-row:nth-child(-n+3) .position{background:#fff0e8;color:var(--primary-dark)}.course .sort-row:nth-child(-n+3) .position{background:#eaf0ff;color:var(--course)}.item-cover{position:relative;width:104px;aspect-ratio:16 / 9;display:grid;place-items:center;overflow:hidden;border-radius:6px;background:linear-gradient(145deg,#ff713b,#ff9a55);color:#fff}.item-cover.course{background:linear-gradient(145deg,#496fca,#7594df)}.item-cover>span{font-size:18px;font-weight:700;opacity:.75}.item-cover img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover}.item-cover em{position:absolute;z-index:2;top:4px;right:4px;padding:2px 4px;border-radius:3px;background:var(--primary);color:#fff;font-size:8px;font-style:normal}.item-copy{min-width:0;display:grid;gap:5px}.item-heading{min-width:0;display:grid;gap:2px}.item-heading strong{display:block;max-height:32px;overflow:hidden;overflow-wrap:anywhere;color:#32383e;font-size:12px;font-weight:600;line-height:16px;white-space:normal}.item-heading small{color:#9a9fa5;font-size:9px}.item-tags{display:flex;gap:3px;overflow:hidden}.item-tags span{flex:0 0 auto;padding:1px 4px;border:1px solid #f4b89d;border-radius:3px;background:#fff8f5;color:#d76636;font-size:8px;line-height:12px}.course .item-tags span{border-color:#bbc9ec;background:#f7f9ff;color:#5470b2}.item-tags span.state.purchased{border-color:#cfd3d8;background:#f3f4f5;color:#7e858d}.item-description{margin:0;overflow:hidden;color:#666f78;font-size:9px;line-height:13px;text-overflow:ellipsis;white-space:nowrap}.item-description b{color:#8c939a;font-weight:500}.item-description.empty{color:#aeb3b9}.item-meta{min-width:0;display:flex;align-items:center;gap:7px;color:#8f969d;font-size:9px}.item-meta span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.item-meta strong{margin-left:auto;color:var(--primary);font-size:12px;font-weight:600;white-space:nowrap}.card-role{justify-self:end;padding:3px 6px;border-radius:4px;font-size:9px;white-space:nowrap}.card-role.large{background:#ffede5;color:#e8511b;font-weight:600}.card-role.small{border:1px solid #ffc4aa;background:#fff;color:#d86639}.card-role.more{background:#f2f3f5;color:#8d939a}.course .card-role.large{background:#e9efff;color:#4266bd}.course .card-role.small{border-color:#bac9ef;color:#5472b6}.move-actions{display:flex;justify-content:flex-end;gap:4px}.move-actions button{width:27px;height:27px;display:grid;place-items:center;padding:0;border:1px solid #e1e4e7;border-radius:5px;background:#fff;color:#737b84}.move-actions button:hover:not(:disabled){border-color:#ffb191;color:var(--primary-dark)}.course .move-actions button:hover:not(:disabled){border-color:#afbfeb;color:var(--course)}.move-actions button:disabled{cursor:not-allowed;opacity:.32}.panel-footer{min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-top:1px solid #e9ebee;background:#fafbfc}.save-state{display:flex;align-items:center;gap:5px;color:#8a9199;font-size:10px}.save-state>span{width:7px;height:7px;border-radius:50%;background:#bfc4ca}.save-state.dirty{color:#cf6b3e}.save-state.dirty>span{background:var(--primary)}.save-state.saved{color:#319164}.panel-actions{display:flex;gap:7px}.panel-actions button{height:32px;display:flex;align-items:center;gap:5px;padding:0 10px;border-radius:6px;font-size:10px}.panel-actions .secondary{border:1px solid #dfe2e5;background:#fff;color:#6d757d}.panel-actions .primary{border:1px solid var(--primary);background:var(--primary);color:#fff}.course .panel-actions .primary{border-color:var(--course);background:var(--course)}.panel-actions .primary:disabled{border-color:#d9dde1;background:#d9dde1;cursor:not-allowed}@media(max-width:1260px){.sort-row{grid-template-columns:26px 28px 92px minmax(0,1fr) 50px}.item-cover{width:92px}.move-actions{display:none}}