:root{--brand: #4f46e5;--brand-soft: #eef2ff;--bg: #f7f8fa;--card: #ffffff;--text: #1f2330;--muted: #8a90a2;--border: #e6e8ee;--danger: #ef4444}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:16px;-webkit-font-smoothing:antialiased}#app{max-width:720px;margin:0 auto;min-height:100vh;padding-bottom:96px}.app-header{position:sticky;top:0;z-index:10;background:var(--card);padding:12px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px}.app-title{font-size:18px;margin:0;font-weight:700}.space-switcher{display:flex;background:var(--bg);border-radius:999px;padding:3px}.space-switcher button{border:none;background:transparent;padding:7px 16px;border-radius:999px;font-size:14px;color:var(--muted);font-weight:600}.space-switcher button.active{background:var(--brand);color:#fff}.tabs{display:flex;gap:8px;padding:12px 16px 0}.tab{flex:1;border:1px solid var(--border);background:var(--card);padding:10px;border-radius:12px;font-size:15px;font-weight:600;color:var(--muted)}.tab.active{background:var(--brand);color:#fff;border-color:var(--brand)}.content{padding:12px 16px}.offline-banner{background:#fff7ed;color:#c2410c;padding:8px 12px;border-radius:10px;font-size:13px;margin:0 0 12px}.offline-banner.warn{background:#fef2f2;color:#b91c1c}.hint{color:var(--muted);text-align:center;padding:24px 0}.list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:12px 14px;position:relative}.card-title{font-weight:600;font-size:16px;margin-bottom:6px;padding-right:48px;word-break:break-word}.card-preview{color:var(--text);font-size:14px;opacity:.85;max-height:260px;overflow:auto}.card-meta{color:var(--muted);font-size:12px;margin-top:8px}.del{position:absolute;top:10px;right:10px;border:none;background:transparent;color:var(--danger);font-size:13px;padding:4px 6px}.card.todo{display:flex;align-items:flex-start;gap:10px}.card.todo.done .card-title{text-decoration:line-through;color:var(--muted)}.card.todo input[type=checkbox]{width:22px;height:22px;margin-top:2px;accent-color:var(--brand);flex-shrink:0}.todo-body{flex:1;min-width:0}.fab{position:fixed;right:max(16px,calc(50% - 344px));bottom:24px;width:56px;height:56px;border-radius:50%;background:var(--brand);color:#fff;border:none;font-size:28px;line-height:1;box-shadow:0 6px 18px #4f46e566;z-index:20}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:50;display:flex;align-items:flex-end;justify-content:center}.modal{background:var(--card);width:100%;max-width:720px;border-radius:18px 18px 0 0;padding:16px;max-height:90vh;display:flex;flex-direction:column;gap:12px}.modal-head{display:flex;justify-content:space-between;align-items:center;font-weight:700}.x{border:none;background:transparent;font-size:24px;color:var(--muted);line-height:1}.title-input{border:1px solid var(--border);border-radius:10px;padding:12px;font-size:16px;width:100%}.mode-switch{display:flex;gap:8px}.mode-switch button{border:1px solid var(--border);background:var(--bg);border-radius:8px;padding:6px 14px;font-size:14px;color:var(--muted)}.mode-switch button.active{background:var(--brand);color:#fff;border-color:var(--brand)}.md-input{border:1px solid var(--border);border-radius:10px;padding:12px;font-size:15px;min-height:220px;width:100%;resize:vertical;font-family:inherit;line-height:1.6}.md-preview{border:1px solid var(--border);border-radius:10px;padding:12px;min-height:220px;overflow:auto}.modal-foot{display:flex;gap:10px;justify-content:flex-end}.btn-ghost{border:1px solid var(--border);background:var(--card);border-radius:10px;padding:10px 18px;font-size:15px}.btn-primary{border:none;background:var(--brand);color:#fff;border-radius:10px;padding:10px 18px;font-size:15px;font-weight:600}.btn-primary:disabled{opacity:.5}.note-text{color:var(--text);font-size:14px;opacity:.85;white-space:pre-wrap;word-break:break-word;max-height:260px;overflow:auto;line-height:1.6}.card-imgs{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.card-imgs img{width:72px;height:72px;object-fit:cover;border-radius:8px;border:1px solid var(--border)}.img-toolbar{display:flex;align-items:center;gap:10px}.btn-img{border:1px solid var(--border);background:var(--bg);border-radius:10px;padding:9px 14px;font-size:14px;font-weight:600;color:var(--text)}.img-hint{color:var(--muted);font-size:13px}.img-wall{display:grid;grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:8px}.img-cell{position:relative;aspect-ratio:1;border-radius:10px;overflow:hidden;border:1px solid var(--border);background:var(--bg)}.img-cell img{width:100%;height:100%;object-fit:cover;display:block}.img-del{position:absolute;top:4px;right:4px;width:22px;height:22px;border-radius:50%;border:none;background:#0000008c;color:#fff;font-size:14px;line-height:1;display:flex;align-items:center;justify-content:center}