.chat .chat_btn{position:fixed;top:600px;right:28px;z-index:1999;width:70px;height:70px;display:flex;justify-content:center;align-items:center;cursor:pointer;background:#ffcf35;border-radius:6px 6px}.chat .chat_btn img{vertical-align:middle}.chat .chat_box{position:fixed;right:18px;bottom:0;height:600px;width:600px;border:1px solid #ccc;background:#fff;box-shadow:-2px -2px 5px rgba(0,0,0,.1);z-index:10000}.chat .chat_box .top{height:40px;line-height:40px;background:#f1f1f1;font-size:16px;color:#333;padding:0 10px;font-weight:700;position:relative}.chat .chat_box .top .close{position:absolute;top:13px;right:13px;height:14px;width:14px;cursor:pointer}.chat .chat_box .content{height:410px;overflow-y:scroll}.chat .chat_box .content ul{padding:20px}.chat .chat_box .content ul li{display:flex;padding-bottom:15px}.chat .chat_box .content ul li span{display:inline-block}.chat .chat_box .content ul li .s1{vertical-align:top}.chat .chat_box .content ul li .s1 img{height:50px;width:50px;border-radius:50px}.chat .chat_box .content ul li .s2{padding-left:12px}.chat .chat_box .content ul li .s2 .time{font-size:12px;color:#999;padding-bottom:5px}.chat .chat_box .content ul li .s2 .txt{width:420px}.chat .chat_box .content ul li .s2 .txt label{background:#f1f1f1;border-radius:4px;padding:10px;font-size:14px;color:#333;display:inline-block;letter-spacing:1px;line-height:20px}.chat .chat_box .content ul .rs{display:flex;flex-direction:row-reverse}.chat .chat_box .content ul .rs .s2{padding-left:0;padding-right:12px}.chat .chat_box .content ul .rs .s2 .time,.chat .chat_box .content ul .rs .s2 .txt{text-align:right}.chat .chat_box .content ul .rs .s2 .txt label{background:#c9e7ff}.chat .chat_box .bottom{height:149px;border-top:1px solid #ccc;background:#f1f1f1}.chat .chat_box .bottom .tool{height:0;background:#eee}.chat .chat_box .bottom .txt{padding:10px}.chat .chat_box .bottom .txt .ctx{display:flex}.chat .chat_box .bottom .txt .ctx textarea{height:60px;padding:8px;width:100%;border:none;border-radius:2px}.chat .chat_box .bottom .txt .send{text-align:right;padding:10px 10px 10px 0;background:#fff}.chat .chat_box .bottom .txt .send .btn{background:#09f;display:inline-block;height:30px;width:80px;line-height:30px;text-align:center;color:#fff;cursor:pointer;border-radius:2px;margin-left:10px}