.msg-card-selector-overlay{position:fixed;z-index:2000;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.4);display:flex;align-items:center;justify-content:center}.msg-card-selector-panel{width:420px;max-height:520px;background:#fff;border-radius:8px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 8px 30px rgba(0,0,0,0.15)}.msg-card-selector-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #eee}.msg-card-selector-title{margin:0;font-size:16px;font-weight:600;color:#333}.msg-card-selector-close{background:none;border:none;font-size:22px;color:#999;cursor:pointer;padding:0;line-height:1}.msg-card-selector-close:hover{color:#333}.msg-card-selector-search{padding:12px 20px;border-bottom:1px solid #f0f0f0}.msg-card-selector-search-input{width:100%;height:36px;padding:0 12px;border:1px solid #ddd;border-radius:6px;font-size:14px;outline:none;box-sizing:border-box}.msg-card-selector-search-input:focus{border-color:var(--color-brand-500)}.msg-card-selector-list{flex:1;overflow-y:auto;max-height:340px;padding:8px 0}.msg-card-selector-loading,.msg-card-selector-empty{text-align:center;padding:40px 0;color:#999;font-size:14px}.msg-card-selector-item{display:flex;align-items:center;padding:10px 20px;cursor:pointer;transition:background 0.15s}.msg-card-selector-item:hover{background:#f5f7fa}.msg-card-selector-item-avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;flex-shrink:0}.msg-card-selector-item-info{flex:1;margin-left:12px;overflow:hidden}.msg-card-selector-item-name{font-size:14px;font-weight:500;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.msg-card-selector-item-intro{font-size:12px;color:#999;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.msg-card-selector-item-send{flex-shrink:0;padding:4px 14px;border:1px solid var(--color-brand-500);background:#fff;color:var(--color-brand-500);border-radius:4px;font-size:13px;cursor:pointer;margin-left:12px;transition:all 0.15s}.msg-card-selector-item-send:hover{background:var(--color-brand-500);color:#fff}.msg-card-selector-footer{padding:12px 20px;border-top:1px solid #eee;text-align:right}.msg-card-selector-cancel{padding:6px 20px;border:1px solid #ddd;background:#fff;color:#666;border-radius:4px;font-size:14px;cursor:pointer}.msg-card-selector-cancel:hover{background:#f5f5f5}