.mask_box{
	    height:1000px;
	    width:100vw;
	    top:0;
	    left:0;
	    background: rgba(0,0,0,0.4);
                   
	    position: fixed;
	}
	.dw_box{
	    position: relative;
	    width: 478px;
	    background: #fff;
	    left: 50%;
	    top: 150px;
	    margin-left: -239px;
	    padding-bottom:16px;
	}
	.dw_img_box{
	 	padding-top: 40px;
	    margin-left: 16px;
	    /*width: 639px;
	    height: 428px;*/
	  	width: 443px;
	    height: 300px;
	}
	.dw_img_box img{
	    display: block;
	    width: 100%;
          height:100%;
	}
	.tc_ul{
	    font-size: 16px;
	    width: 441px;
	    padding-top: 20px;
	    padding-left: 20px;
	}
	.tc_ul_p1{
	    font-weight: 600;
	    padding-bottom: 20px;
	}
	.btn_left{
	    cursor: pointer;
	    padding:20px 10px;
	    background: rgba(255,255,255,0.4);
	    position: absolute;
	    top:50%;
	    margin-top: -32px;
	    left: -44px;
	    width: 24px;
	    height: 44px;
	    overflow: hidden;
	}
	.btn_right{
	    cursor: pointer;
	    padding:20px 10px;
	    position: absolute;
	    background: rgba(255,255,255,0.4);
	    top: 50%;
	    margin-top: -32px;
	    right:-44px;
	    width: 24px;
	    height: 44px;
	    overflow: hidden;
	}
	.btn_left img{
	    display: block;
	    width: 100%;
	}
	.mask_box{
	    display: none;
	}
	.mask_close{
	    cursor: pointer;
	    width: 28px;
	    height: 28px;
	    position: absolute;
	    top:8px;
	    right:14px;
	}
        .tc_ul li{float: none; width: auto;margin: 0;padding: 0;}
        .tc_ul li p { width:auto; margin:0;}

@media screen and (max-height: 768px) {
    .mask_box{
	    height:1000px;
	    width:100vw;
	    top:0;
	    left:0;
	    background: rgba(0,0,0,0.4);
	    position: fixed;
	}
	.dw_box{
	    position: relative;
	    width: 478px;
	    background: #fff;
	    left: 50%;
	    top: 150px;
	    margin-left: -239px;
	   padding-bottom:16px;
	}
	.dw_img_box{
	 	padding-top: 40px;
	    margin-left: 16px;
	    /*width: 639px;
	    height: 428px;*/
	  	width: 443px;
	    height: 300px;
	}
	.dw_img_box img{
	    display: block;
	    width: 100%;
          height:100%;
	}
	.tc_ul{
	    font-size: 16px;
	    width: 441px;
	    padding-top: 20px;
	    padding-left: 20px;
	}
	.tc_ul_p1{
	    font-weight: 600;
	    padding-bottom: 20px;
	}
	.btn_left{
	    cursor: pointer;
	    padding:20px 10px;
	    background: rgba(255,255,255,0.4);
	    position: absolute;
	    top:50%;
	    margin-top: -32px;
	    left: -44px;
	    width: 24px;
	    height: 44px;
	    overflow: hidden;
	}
	.btn_right{
	    cursor: pointer;
	    padding:20px 10px;
	    position: absolute;
	    background: rgba(255,255,255,0.4);
	    top: 50%;
	    margin-top: -32px;
	    right:-44px;
	    width: 24px;
	    height: 44px;
	    overflow: hidden;
	}
	.btn_left img{
	    display: block;
	    width: 100%;
	}
	.mask_box{
	    display: none;
	}
	.mask_close{
	    cursor: pointer;
	    width: 28px;
	    height: 28px;
	    position: absolute;
	    top:8px;
	    right:14px;
	}
        .tc_ul li{float: none; width: auto;margin: 0;padding: 0;}
        .tc_ul li p { width:auto; margin:0;}
}