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6px;font-size:.8rem}.digest-view{display:flex;flex-direction:column;gap:6px}.digest-content{white-space:pre-wrap;font-size:.8rem;color:var(--text-primary);background:var(--bg-tertiary);padding:8px;border-radius:var(--radius);max-height:200px;overflow-y:auto;margin:0;font-family:inherit}.select-mode-bar{display:flex;align-items:center;gap:8px;padding:4px 12px;background:var(--accent-light);border-bottom:1px solid var(--border);font-size:.8rem;color:var(--accent)}.select-mode-toggle{padding:2px 12px}.select-mode-btn{background:var(--bg-tertiary);border:1px solid var(--border);color:var(--text-secondary);padding:2px 8px;border-radius:var(--radius);font-size:.75rem;cursor:pointer}.select-mode-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.msg-select-check{position:absolute;left:-24px;top:50%;transform:translateY(-50%);cursor:pointer}.msg-select-check input{accent-color:var(--accent)}.msg-selected{outline:2px solid var(--accent);outline-offset:-2px}.msg-image-wrap{position:relative;display:inline-block;margin-bottom:6px}.msg-image{max-width:100%;max-height:300px;border-radius:6px;object-fit:contain;display:block}.msg-image-download{position:absolute;bottom:8px;right:8px;background:#000000b3;color:#fff;border:none;border-radius:50%;width:28px;height:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:.85rem;opacity:0;transition:opacity .15s}.msg-image-wrap:hover .msg-image-download{opacity:1}.msg-item-header{display:flex;justify-content:space-between;margin-bottom:4px}.msg-sender{font-weight:600;font-size:.85rem;color:var(--text-secondary)}.msg-time{font-size:.75rem;color:var(--text-muted)}.msg-content{margin:0;white-space:pre-wrap;word-break:break-word;color:var(--text-primary);line-height:1.5}.msg-read-count{margin-top:4px;font-size:.7rem;color:var(--text-muted);text-align:right}.archive-notice{padding:12px;text-align:center;background:var(--bg-tertiary);border-top:1px solid var(--border);color:var(--text-muted);font-size:.85rem}.collection-dropdown-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;z-index:90;display:flex;align-items:center;justify-content:center}.collection-dropdown{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:8px;min-width:200px;box-shadow:var(--shadow)}.collection-dropdown-title{font-size:.8rem;color:var(--text-muted);margin-bottom:6px}.collection-dropdown-item{display:block;width:100%;background:none;border:none;color:var(--text-primary);padding:6px 8px;font-size:.85rem;cursor:pointer;text-align:left;border-radius:4px}.collection-dropdown-item:hover{background:var(--bg-hover)}.toast-notification{position:fixed;bottom:24px;right:24px;z-index:200;background:var(--bg-secondary);border:1px solid var(--accent);border-radius:var(--radius);padding:10px 16px;color:var(--text-primary);font-size:.85rem;box-shadow:var(--shadow);animation:toast-in .3s ease}@keyframes toast-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.last-image-hint{display:flex;align-items:center;gap:6px;padding:4px 8px;font-size:.75rem;color:var(--text-muted)}.last-image-hint code{background:var(--bg-tertiary);padding:1px 4px;border-radius:3px;color:var(--accent);font-size:.7rem}.last-image-thumb{width:32px;height:32px;border-radius:4px;object-fit:cover}.chat-room-section{display:flex;flex-direction:column;height:100%}.ws-status-bar{padding:4px 12px;text-align:center;font-size:.85rem}.chat-error-bar{padding:4px 12px;background:#f8d7da;color:#721c24;text-align:center;font-size:.85rem}.app-version{font-size:.6rem;font-weight:400;color:var(--text-muted);vertical-align:super;margin-left:4px;opacity:.7}.panel-hint{display:block;margin-top:6px;font-size:.75rem;color:var(--text-muted);line-height:1.4;font-style:italic}.sidebar-summary-btn-wrap{padding:4px 16px 8px;border-top:1px solid var(--border)}.sidebar-summary-btn{width:100%;background:var(--accent-light);color:var(--accent);border:1px solid var(--accent);border-radius:var(--radius);padding:6px 10px;font-size:.8rem;cursor:pointer;transition:all .15s}.sidebar-summary-btn:hover{background:var(--accent);color:#fff}.room-tree{list-style:none;padding:0;margin:0}.room-tree-node{border-bottom:1px solid var(--border)}.room-tree-row{display:flex;align-items:center;gap:4px;padding:6px 8px;min-height:40px;transition:background .1s}.room-tree-row:hover{background:var(--bg-hover)}.room-tree-row.active{background:var(--accent-light)}.room-tree-toggle{background:none;border:none;color:var(--text-muted);font-size:1rem;cursor:pointer;padding:6px 10px;flex-shrink:0;min-width:36px;min-height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius)}.room-tree-toggle:hover{background:var(--bg-hover);color:var(--text-primary)}.room-tree-name{flex:1;background:none;border:none;color:var(--text-primary);font-size:.85rem;cursor:pointer;text-align:left;padding:2px 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.room-tree-action{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:.75rem;padding:2px;flex-shrink:0;opacity:0;transition:opacity .15s}.room-tree-row:hover .room-tree-action{opacity:1}.room-tree-detail{padding:4px 8px 8px 24px;display:flex;flex-direction:column;gap:4px;background:var(--bg-tertiary);border-top:1px solid var(--border)}.room-tree-tags{display:flex;flex-wrap:wrap;gap:3px}.room-tree-hint{font-size:.75rem;color:var(--text-muted);font-style:italic}.room-tree-summary-btn{background:var(--accent-light);color:var(--accent);border:1px solid var(--accent);border-radius:var(--radius);padding:3px 8px;font-size:.75rem;cursor:pointer;align-self:flex-start;transition:all .15s}.room-tree-summary-btn:hover{background:var(--accent);color:#fff}