:root{--bg0: #f8fafc;--bg1: #eef2f7;--panel: #ffffff;--panel-2: #f1f5f9;--ink: #0f172a;--muted: #64748b;--accent: #4f46e5;--accent-2: #0ea5e9;--accent-3: #14b8a6;--line: rgba(15, 23, 42, .1);--danger: #dc2626;--shadow: 0 8px 24px rgba(15, 23, 42, .08);--topbar-h: 48px;--sidebar-w: 196px;--sidebar-w-collapsed: 56px;--radius: 8px;--radius-sm: 6px;--font-display: "Inter", "Noto Sans SC", "PingFang SC", system-ui, sans-serif;--font-body: "Inter", "Noto Sans SC", "PingFang SC", system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;color:var(--ink);font-family:var(--font-body);background:linear-gradient(180deg,var(--bg0) 0%,var(--bg1) 100%)}button,input,textarea,select{font:inherit}button{cursor:pointer}a{color:inherit}.shell{height:100%;display:flex;flex-direction:column}.topbar{height:var(--topbar-h);flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 14px;border-bottom:1px solid 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0;color:var(--muted);font-size:.92rem}.meta{flex-shrink:0;color:var(--muted);font-size:.8rem;align-self:center}.form{display:grid;gap:14px;max-width:520px}.field{display:grid;gap:8px}.field span{font-size:.9rem;color:var(--muted)}.field input,.field textarea,.field select{width:100%;padding:7px 10px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);outline:none}.field input[type=color]{height:42px;padding:4px}.field input:focus,.field textarea:focus,.field select:focus{border-color:#4f46e573;box-shadow:0 0 0 3px #4f46e51f}.primary{margin-top:0;padding:7px 14px;color:#fff;background:var(--accent);border:0;border-radius:var(--radius-sm);font-weight:600;box-shadow:none;transition:background .14s ease}.primary:hover:not(:disabled){background:#4338ca}.primary:disabled{opacity:.6;cursor:wait}.linkish{margin-bottom:12px;padding:0;color:var(--accent-2);background:none;border:0}.job-card{padding:18px 16px;border:1px solid var(--line);background:#ffffff08}.preview-wrap{margin:14px 0;display:grid;gap:12px}.preview-video{width:min(360px,100%);max-height:640px;background:#000;border:1px solid var(--line)}.link-btn{display:inline-block;text-decoration:none;text-align:center}.break{word-break:break-all}.ghost{padding:6px 12px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm)}.ghost.danger{color:var(--danger)}.table{display:grid;gap:8px;margin-bottom:28px}.table-row{display:flex;justify-content:space-between;gap:12px;padding:14px 12px;border:1px solid var(--line);background:#ffffff08}.row-actions{display:flex;gap:8px;align-items:center}.login-brand{display:flex;align-items:center;gap:14px;margin-bottom:8px}.login-brand strong{display:block;font-family:var(--font-display);font-size:1.5rem;letter-spacing:.06em}.login-brand span{display:block;color:var(--muted);font-size:.88rem;margin-top:2px}.login-panel{width:min(420px,100%);margin:40px auto;padding:24px;border:1px 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var(--line);box-shadow:var(--shadow)}.modal-card h3{font-family:var(--font-display);margin-bottom:10px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.book-cover img{width:100%;height:100%;object-fit:cover}.book-meta strong{display:block;font-size:.95rem}.series-block{margin-bottom:6px;padding:0;border:1px solid var(--line);border-radius:var(--radius-sm);background:#ffffffb8;overflow:hidden}.series-block.depth-1{border-color:#4f46e538}.series-block.depth-2,.series-block.depth-3{margin:8px 0 0;border-color:var(--line);background:#f8fafce6}.series-head{display:flex;align-items:center;gap:8px;width:100%;padding:9px 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var(--line)}.folder-selection-tip{margin:0}@media(max-width:720px){.cascade-select{grid-template-columns:1fr}}.admin-series-tree{margin-top:4px}.series-block.is-expanded>.series-head{border-bottom:1px solid var(--line)}.plan-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}.plan-card,.pay-box{border:1px solid var(--line);background:var(--panel);padding:12px;border-radius:var(--radius);box-shadow:0 4px 14px #4a35600f}.price{font-size:1.5rem;font-family:var(--font-display);color:var(--accent-2)}.pay-box{margin-top:24px;max-width:320px}.qr{width:220px;height:220px;background:#fff;padding:8px}.reader-page{height:100%;display:flex;flex-direction:column;background:#000}.reader-bar{display:flex;align-items:center;gap:12px;padding:8px 12px;background:#000000bf;color:#fff;position:relative;z-index:2}.reader-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reader-frame{flex:1;width:100%;border:0;background:#fff}.reader-loading{padding:24px;color:#fff}.simple-list{list-style:none;padding:0;margin:0;display:grid;gap:6px}.simple-list li{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:8px 10px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#ffffffd9}.admin-form{margin-bottom:12px}.row-actions{display:flex;gap:8px}.file-btn{display:inline-flex;align-items:center;padding:8px 14px;border:2px dashed var(--accent);border-radius:var(--radius-sm);background:#ffffffe6;color:var(--accent);font-weight:600;cursor:pointer}.file-btn.disabled{opacity:.65;cursor:wait;pointer-events:none}.upload-progress{padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel)}.upload-progress p{margin:0 0 8px;font-size:.92rem}.upload-progress progress{width:100%;height:8px;accent-color:var(--accent)}.banner.success{border-color:var(--accent);color:var(--accent)}button.danger{color:var(--danger)}