:root{--bg:#f5f5f7;--bg-card:#fff;--bg-input:#f0f0f2;--bg-hover:#e8e8ec;--text:#1a1a2e;--text-secondary:#6b7280;--text-placeholder:#9ca3af;--border:#e5e7eb;--primary:#6366f1;--primary-light:#818cf8;--primary-bg:#eef2ff;--danger:#ef4444;--danger-bg:#fef2f2;--success:#10b981;--success-bg:#ecfdf5;--warning:#f59e0b;--warning-bg:#fffbeb;--shadow:0 1px 3px #00000014;--shadow-lg:0 4px 12px #0000001a;--radius:12px;--radius-sm:8px;--tab-bar-height:60px}[data-theme=dark]{--bg:#0f0f1a;--bg-card:#1a1a2e;--bg-input:#252540;--bg-hover:#2a2a45;--text:#e5e5f0;--text-secondary:#9ca3af;--text-placeholder:#6b7280;--border:#2a2a45;--primary:#818cf8;--primary-light:#a5b4fc;--primary-bg:#1e1b4b;--danger-bg:#3b1111;--success-bg:#0b3d2e;--warning-bg:#3b2e08;--shadow:0 1px 3px #0000004d;--shadow-lg:0 4px 12px #0006}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif}.app{flex-direction:column;max-width:768px;min-height:100%;margin:0 auto;display:flex}.page{padding:16px;padding-bottom:calc(var(--tab-bar-height) + 24px);flex:1;overflow-y:auto}.page-header{align-items:center;gap:12px;margin-bottom:20px;padding:4px 0;display:flex}.page-header h1{font-size:22px;font-weight:700}.back-btn{background:var(--bg-input);border-radius:var(--radius-sm);width:36px;height:36px;color:var(--text);cursor:pointer;border:none;justify-content:center;align-items:center;font-size:18px;display:flex}button{cursor:pointer;border:none;font-family:inherit}input,textarea,select{font-family:inherit;font-size:16px}.btn-primary{background:var(--primary);color:#fff;border-radius:var(--radius-sm);border:none;width:100%;padding:12px 24px;font-size:16px;font-weight:600;transition:opacity .2s}.btn-primary:active{opacity:.85}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-outline{color:var(--primary);border:1.5px solid var(--primary);border-radius:var(--radius-sm);background:0 0;padding:10px 20px;font-size:15px;font-weight:600;transition:background .2s}.btn-outline:active{background:var(--primary-bg)}.btn-danger{background:var(--danger);color:#fff;border-radius:var(--radius-sm);border:none;padding:10px 20px;font-size:15px;font-weight:600}.form-group{margin-bottom:20px}.form-group label{color:var(--text-secondary);margin-bottom:8px;font-size:14px;font-weight:600;display:block}.form-group input,.form-group textarea,.form-group select{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text);outline:none;padding:12px;transition:border-color .2s}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--primary)}.form-group textarea{resize:vertical;min-height:100px}.empty-state{text-align:center;color:var(--text-secondary);padding:60px 20px}.empty-state .icon{margin-bottom:16px;font-size:48px}.empty-state p{font-size:15px}@media (width>=768px){.app{max-width:960px}.page{padding:24px 32px;padding-bottom:calc(var(--tab-bar-height) + 32px)}}.tab-bar{height:var(--tab-bar-height);background:var(--bg-card);border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom,0);z-index:100;justify-content:space-around;align-items:center;max-width:768px;margin:0 auto;display:flex;position:fixed;bottom:0;left:0;right:0}.tab-item{color:var(--text-secondary);background:0 0;flex-direction:column;align-items:center;gap:2px;padding:8px 16px;font-size:12px;transition:color .2s;display:flex}.tab-item.active{color:var(--primary)}.tab-icon{font-size:22px;line-height:1}.tab-label{font-weight:500}@media (width>=768px){.tab-bar{max-width:960px}}.item-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);cursor:pointer;gap:14px;padding:14px;transition:box-shadow .2s;display:flex}.item-card:active{box-shadow:var(--shadow-lg)}.card-cover{object-fit:cover;border-radius:var(--radius-sm);flex-shrink:0;width:72px;height:96px}.card-cover-placeholder{background:var(--bg-input);border-radius:var(--radius-sm);flex-shrink:0;justify-content:center;align-items:center;width:72px;height:96px;font-size:32px;display:flex}.card-body{flex-direction:column;flex:1;gap:6px;min-width:0;display:flex}.card-title{text-overflow:ellipsis;white-space:nowrap;font-size:16px;font-weight:600;overflow:hidden}.card-meta{color:var(--text-secondary);align-items:center;gap:10px;font-size:13px;display:flex}.card-progress{color:var(--primary);font-weight:500}.card-tags{flex-wrap:wrap;gap:6px;display:flex}.card-tag{background:var(--primary-bg);color:var(--primary);border-radius:99px;padding:2px 8px;font-size:12px}.card-date{color:var(--text-placeholder);margin-top:auto;font-size:12px}.search-bar{margin-bottom:16px;position:relative}.search-bar input{background:var(--bg-card);border:1.5px solid var(--border);border-radius:var(--radius);width:100%;color:var(--text);outline:none;padding:12px 40px 12px 16px;font-size:15px}.search-bar input:focus{border-color:var(--primary)}.search-bar input::placeholder{color:var(--text-placeholder)}.search-clear{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;padding:4px;font-size:20px;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.status-tabs{gap:6px;margin-bottom:16px;display:flex}.status-tab{background:var(--bg-card);border:1.5px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);flex:1;justify-content:center;align-items:center;gap:6px;padding:10px;font-size:14px;font-weight:500;transition:all .2s;display:flex}.status-tab.active{background:var(--primary-bg);border-color:var(--primary);color:var(--primary);font-weight:600}.tab-count{background:var(--bg-input);text-align:center;border-radius:99px;min-width:20px;padding:1px 6px;font-size:12px}.status-tab.active .tab-count{background:var(--primary);color:#fff}.tag-filter{-webkit-overflow-scrolling:touch;gap:8px;margin-bottom:16px;padding-bottom:4px;display:flex;overflow-x:auto}.tag-filter::-webkit-scrollbar{display:none}.filter-tag{background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);white-space:nowrap;border-radius:99px;padding:6px 14px;font-size:13px;transition:all .2s}.filter-tag.active{background:var(--primary);color:#fff;border-color:var(--primary)}.item-list{flex-direction:column;gap:12px;display:flex}.star-rating{gap:4px;display:flex}.star{color:var(--border);cursor:pointer;-webkit-user-select:none;user-select:none;font-size:28px;transition:color .15s,transform .15s}.star.filled{color:var(--warning)}.star:active:not(.readonly .star){transform:scale(1.2)}.star-rating.readonly .star{cursor:default;font-size:20px}.note-item{background:var(--bg-input);border-radius:var(--radius-sm);padding:14px}.note-time{color:var(--text-placeholder);margin-bottom:8px;font-size:12px}.note-content{white-space:pre-wrap;word-break:break-word;font-size:15px;line-height:1.6}.note-actions{gap:12px;margin-top:10px;display:flex}.note-actions button{color:var(--text-secondary);background:0 0;padding:4px 0;font-size:13px}.note-actions button:last-child{color:var(--danger)}.note-edit textarea{background:var(--bg-card);border:1.5px solid var(--primary);border-radius:var(--radius-sm);width:100%;min-height:80px;color:var(--text);resize:vertical;outline:none;padding:10px;font-family:inherit;font-size:15px}.note-edit-actions{justify-content:flex-end;gap:8px;margin-top:8px;display:flex}.detail-info{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:20px;padding:16px}.detail-row{align-items:center;gap:12px;padding:10px 0;display:flex}.detail-row+.detail-row{border-top:1px solid var(--border)}.detail-label{color:var(--text-secondary);flex-shrink:0;width:48px;font-size:14px}.status-select{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);outline:none;padding:6px 10px;font-size:14px}.progress-display{color:var(--primary);cursor:pointer;font-weight:500}.progress-edit{flex:1;gap:8px;display:flex}.progress-edit input{background:var(--bg-input);border:1.5px solid var(--primary);border-radius:var(--radius-sm);color:var(--text);outline:none;flex:1;padding:6px 10px;font-size:14px}.detail-tags{flex-wrap:wrap;gap:6px;display:flex}.detail-section{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:20px;padding:16px}.detail-section h2{margin-bottom:14px;font-size:17px;font-weight:600}.summary-actions{gap:10px;margin-bottom:14px;display:flex}.summary-btn{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-sm);color:var(--text);text-align:left;flex:1;align-items:center;gap:10px;padding:12px;transition:all .2s;display:flex}.summary-btn:active:not(:disabled){border-color:var(--primary);background:var(--primary-bg)}.summary-btn:disabled{opacity:.5;cursor:not-allowed}.summary-btn-icon{flex-shrink:0;font-size:24px}.summary-btn-text{flex-direction:column;gap:2px;display:flex}.summary-btn-text strong{font-size:14px}.summary-btn-text small{color:var(--text-secondary);font-size:11px}.generating-hint{text-align:center;color:var(--primary);margin-bottom:10px;padding:10px;font-size:14px}.ai-error{background:var(--danger-bg);color:var(--danger);border-radius:var(--radius-sm);margin-bottom:12px;padding:10px 14px;font-size:14px}.summary-content{white-space:pre-wrap;color:var(--text);font-size:15px;line-height:1.8}.summary-empty{color:var(--text-placeholder);text-align:center;padding:20px;font-size:14px}.note-add{margin-bottom:16px}.note-add textarea{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-sm);width:100%;min-height:80px;color:var(--text);resize:vertical;outline:none;margin-bottom:8px;padding:12px;font-family:inherit;font-size:15px}.note-add textarea:focus{border-color:var(--primary)}.note-list{flex-direction:column;gap:12px;display:flex}.empty-hint{color:var(--text-placeholder);text-align:center;padding:16px;font-size:14px}.tag-input-wrap{flex-direction:column;gap:8px;display:flex}.tag-list{flex-wrap:wrap;gap:6px;display:flex}.tag-chip{background:var(--primary-bg);color:var(--primary);border-radius:99px;align-items:center;gap:4px;padding:4px 10px;font-size:14px;display:inline-flex}.tag-remove{color:var(--primary);cursor:pointer;background:0 0;border:none;padding:0 2px;font-size:16px;line-height:1}.tag-input-row{gap:8px;display:flex}.tag-input{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-sm);color:var(--text);outline:none;flex:1;padding:10px 12px;font-size:15px}.tag-input:focus{border-color:var(--primary)}.tag-add-btn{background:var(--primary-bg);color:var(--primary);border-radius:var(--radius-sm);white-space:nowrap;border:none;padding:10px 16px;font-size:14px;font-weight:600}.type-selector{flex-wrap:wrap;gap:8px;display:flex}.type-btn{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);padding:8px 16px;font-size:14px;transition:all .2s}.type-btn.active{background:var(--primary-bg);border-color:var(--primary);color:var(--primary);font-weight:600}.cover-preview{object-fit:cover;border-radius:var(--radius-sm);width:100px;height:133px;margin-top:10px}.delete-btn{width:100%;margin-top:12px}.settings-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;padding:18px}.settings-card h3{margin-bottom:6px;font-size:16px;font-weight:600}.settings-desc{color:var(--text-secondary);margin-bottom:14px;font-size:13px;line-height:1.5}.api-key-input{gap:8px;display:flex}.api-key-input input{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-sm);color:var(--text);outline:none;flex:1;padding:10px 12px;font-size:15px}.api-key-input input:focus{border-color:var(--primary)}.theme-toggle{cursor:pointer;justify-content:space-between;align-items:center;padding:10px 0;font-size:15px;display:flex}.toggle-switch{background:var(--border);border-radius:99px;width:48px;height:28px;transition:background .2s;position:relative}.toggle-switch.active{background:var(--primary)}.toggle-thumb{background:#fff;border-radius:50%;width:22px;height:22px;transition:transform .2s;position:absolute;top:3px;left:3px}.toggle-switch.active .toggle-thumb{transform:translate(20px)}.data-actions{gap:10px;display:flex}.data-actions .btn-outline,.import-label{text-align:center;cursor:pointer;flex:1}.import-status{border-radius:var(--radius-sm);text-align:center;margin-top:12px;padding:10px;font-size:14px}.import-status.success{background:var(--success-bg);color:var(--success)}.import-status.error{background:var(--danger-bg);color:var(--danger)}.model-selector{flex-wrap:wrap;gap:8px;display:flex}.model-btn{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);padding:8px 14px;font-size:13px;transition:all .2s}.model-btn.active{background:var(--primary-bg);border-color:var(--primary);color:var(--primary);font-weight:600}