.msg-chat-panel{display:flex;flex-direction:column;flex:1;overflow:hidden}.msg-chat-header{height:var(--msg-header-h);flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--msg-border);background:var(--msg-surface)}.msg-chat-header-left{display:flex;align-items:center;gap:10px}.msg-chat-header-right{display:flex;align-items:center;gap:6px}.msg-chat-header-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover}.msg-chat-header-avatar-group{width:36px;height:36px;border-radius:50%;background:var(--msg-primary-l);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--msg-primary)}.msg-chat-header-info{display:flex;flex-direction:column;justify-content:center}.msg-chat-header-name{font-size:15px;font-weight:var(--font-weight-bold);color:var(--msg-text-1)}.msg-chat-header-sub{font-size:11px;color:var(--msg-text-3)}.msg-chat-header-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:none;background:none;border-radius:var(--radius-sm);color:var(--msg-text-3);cursor:pointer;transition:all .15s}.msg-chat-header-btn:hover{background:var(--msg-primary-l);color:var(--msg-primary)}.msg-chat-header-btn svg{width:18px;height:18px}.msg-chat-body{flex:1;overflow-y:auto;padding:16px;background:var(--msg-chat-bg);display:flex;flex-direction:column;gap:2px;scrollbar-width:thin;scrollbar-color:rgba(0,0,0,.1) transparent}.msg-chat-body::-webkit-scrollbar{width:4px}.msg-chat-body::-webkit-scrollbar-thumb{background:rgba(0,0,0,.1);border-radius:var(--radius-sm)}.msg-chat-loading{text-align:center;padding:20px;font-size:13px;color:var(--msg-text-3)}.msg-time-divider{display:flex;align-items:center;justify-content:center;margin:10px 0}.msg-time-divider span{font-size:11px;color:var(--msg-text-3);background:rgba(0,0,0,.06);padding:2px 10px;border-radius:var(--radius-md)}.msg-msg-row{display:flex;align-items:flex-end;gap:8px;margin-bottom:6px}.msg-msg-row.self{flex-direction:row-reverse}.msg-msg-avatar{width:34px;height:34px;border-radius:50%;object-fit:cover;flex-shrink:0}.msg-msg-col{display:flex;flex-direction:column;max-width:65%}.msg-msg-row.self .msg-msg-col{align-items:flex-end}.msg-msg-sender-name{font-size:11px;color:var(--msg-text-3);margin-bottom:3px;padding-left:2px}.msg-bubble{display:inline-block;padding:9px 13px;border-radius:14px 14px 14px 4px;background:var(--msg-bubble-other);color:var(--msg-text-1);font-size:14px;line-height:var(--line-height-relaxed);word-break:break-all;box-shadow:0 1px 4px rgba(0,0,0,.08);max-width:100%;animation:msg-bubble-in .3s ease both}@keyframes msg-bubble-in{from{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.msg-msg-row.self .msg-bubble{background:var(--msg-bubble-me);color:var(--color-white);border-radius:14px 14px 4px 14px}.msg-bubble-img{max-width:200px;max-height:200px;border-radius:var(--radius-md);display:block;cursor:pointer;object-fit:cover}.msg-bubble-file{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--msg-surface);border:1px solid var(--msg-border);border-radius:var(--radius-md);cursor:pointer}.msg-bubble-file-icon{font-size:28px}.msg-bubble-file-name{font-size:13px;font-weight:var(--font-weight-semibold);color:var(--msg-text-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:140px}.msg-bubble-file-size{font-size:11px;color:var(--msg-text-3)}.msg-chat-footer{flex-shrink:0;border-top:1px solid var(--msg-border);background:var(--msg-surface)}.msg-chat-toolbar{display:flex;align-items:center;gap:4px;padding:8px 14px 0}.msg-toolbar-btn{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border:none;background:none;border-radius:var(--radius-sm);color:var(--msg-text-3);cursor:pointer;font-size:18px;transition:all .15s;position:relative}.msg-toolbar-btn:hover{background:var(--msg-primary-l);color:var(--msg-primary)}.msg-toolbar-btn svg{width:18px;height:18px}.msg-chat-input-wrap{display:flex;align-items:flex-end;padding:10px 14px;gap:10px}.msg-chat-textarea{flex:1;min-height:38px;max-height:120px;padding:8px 12px;border:1.5px solid var(--msg-border);border-radius:var(--radius-md);font-size:14px;color:var(--msg-text-1);resize:none;outline:none;line-height:var(--line-height-normal);font-family:inherit;transition:border-color .2s;background:var(--color-gray-50)}.msg-chat-textarea:focus{outline:none;border-color:var(--msg-primary);background:var(--surface-card);box-shadow:0 0 0 3px var(--msg-primary-l)}.msg-chat-textarea::placeholder{color:var(--msg-text-3)}.msg-send-btn{width:40px;height:38px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:var(--msg-primary);color:var(--color-white);border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .2s;box-shadow:0 2px 8px rgba(255,114,68,.3)}.msg-send-btn:hover{background:var(--msg-primary-d);transform:translateY(-1px)}.msg-send-btn:active{transform:none}.msg-send-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.msg-send-btn svg{width:18px;height:18px}@media (max-width:768px){.msg-chat-header{height:56px;padding:0 12px}.msg-chat-header-avatar{width:32px;height:32px}.msg-chat-header-avatar-group{width:32px;height:32px;font-size:16px}.msg-chat-header-name{font-size:14px}.msg-chat-body{padding:12px}.msg-msg-row{margin-bottom:4px}.msg-msg-avatar{width:30px;height:30px}.msg-msg-col{max-width:70%}.msg-bubble{font-size:13px;padding:8px 12px}.msg-bubble-img{max-width:180px;max-height:180px}.msg-chat-input-wrap{padding:8px 12px;gap:8px}.msg-chat-textarea{min-height:36px;font-size:13px;padding:6px 10px}.msg-send-btn{width:36px;height:36px}}@media (max-width:480px){.msg-chat-header{height:52px;padding:0 10px}.msg-chat-header-avatar{width:28px;height:28px}.msg-chat-header-avatar-group{width:28px;height:28px;font-size:14px}.msg-chat-header-name{font-size:13px}.msg-chat-header-sub{font-size:10px}.msg-chat-body{padding:10px}.msg-msg-col{max-width:75%}.msg-bubble{font-size:12px;padding:7px 10px}.msg-bubble-img{max-width:160px;max-height:160px}.msg-chat-input-wrap{padding:6px 10px;gap:6px}.msg-chat-textarea{min-height:34px;font-size:12px;padding:5px 8px}.msg-send-btn{width:34px;height:34px}}.msg-msg-row-selected::before{content:'✓';position:absolute;left:-24px;top:50%;transform:translateY(-50%);width:18px;height:18px;background:var(--color-brand-500);color:var(--color-white);border-radius:50%;font-size:11px;display:flex;align-items:center;justify-content:center;z-index:2}.msg-batch-action-bar{display:flex;align-items:center;justify-content:center;gap:16px;padding:10px 16px;background:var(--surface-card);border-top:1px solid var(--color-gray-200);box-shadow:0 -2px 8px rgba(0,0,0,0.08)}.msg-batch-action-count{font-size:14px;color:var(--color-gray-500)}.msg-batch-action-count strong{color:var(--color-brand-500);font-weight:var(--font-weight-bold)}.msg-batch-action-delete{padding:6px 20px;border:none;background:#e74c3c;color:var(--color-white);border-radius:var(--radius-sm);font-size:13px;cursor:pointer;transition:background 0.15s}.msg-batch-action-delete:hover{background:#c0392b}.msg-batch-action-cancel{padding:6px 20px;border:1px solid var(--color-gray-300);background:var(--surface-card);color:var(--color-gray-500);border-radius:var(--radius-sm);font-size:13px;cursor:pointer;transition:background 0.15s}.msg-batch-action-cancel:hover{background:var(--color-gray-100)}.msg-new-msg-indicator{position:absolute;bottom:80px;left:50%;transform:translateX(-50%);padding:6px 16px;background:var(--color-brand-500);color:var(--color-white);border-radius:var(--radius-xl);font-size:13px;cursor:pointer;z-index:10;box-shadow:0 2px 12px rgba(var(--color-brand-500-rgb),0.35);animation:msg-indicator-bounce 0.3s ease}@keyframes msg-indicator-bounce{0%{transform:translateX(-50%) scale(0.8);opacity:0}100%{transform:translateX(-50%) scale(1);opacity:1}}