@media(min-width: 1200px){
	.article_txt{
		width:1200px;
		margin:0 auto;
		min-height:900px;
		padding-bottom:20px;
	}
	/**pc端的修改全部写在里面**/
	#cmm_nav{
		padding:0;
		margin:0;
		background:#ffffff;
	}
	.downloadhelp{
		overflow:hidden;
		margin:0 auto;
		width:600px;
		border-bottom:1px solid #ffffff;
		margin-bottom:54px;
	}
	.downloadhelp a{
		display:block;
		width:270px;
	}
	.downloadhelp a:nth-child(2n){
		float:right;
	}
	.downloadhelp a:nth-child(2n+1){
		float:left;
	}


	.downloadhelp .help_box .help_text{
		height:170px;
		background:#222222;
		color:#fff;
		padding:12px;
		text-align:center;

	}

	.downloadhelp .help_box .help_text h4{
		font-size:18px;
		line-height:28px;
		font-weight:bold;
		margin-top:24px;
	}


	.icon_help{
		position:relative;
		/*background:rgba(0,0,0,.4);*/
	}
	.help_img_yy{
		position:absolute;
		left:0;
		top:0;
		width:100%;
		height:100%;
		background:#000000;
		opacity: 0.6;
		z-index:100;
	}
	/**安卓**/
	.icon_android{
		position:relative;
		background:url(/public/statics/image/pptp.png) no-repeat center center;
		background-size:135px 60%;
		width: 100%;
	    height: 170px;
	    z-index:201;
	}
	.icon_artthumb{
		position:relative;
		background:url(/public/statics/image/pptp.png) no-repeat center center;
		background-size:135px 60%;
		width: 100%;
	    height: 170px;
	    z-index:201;
	}
	.downloadhelp .help_android:hover .icon_android{
		background:url('/public/statics/image/pptp.png') no-repeat center center;
		background-size:135px 60%;
		width: 100%;
	    height: 170px;
	}
	.help_android .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/android_bg.jpg') no-repeat center center;
		background-size:130%;
	}
	/**apple**/
	.icon_apple{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/s5.png') no-repeat center center;
		background-size:115px 115px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_apple:hover .icon_apple{
		background:url('/public/statics/image/s5.png') no-repeat center center;
		background-size:115px 115px;
		width: 100%;
	    height: 170px;
	}
	.help_apple .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/apple_iso10.jpg') no-repeat center center;
		background-size:130%;
	}
	/**http**/
	.icon_http{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/admin.png') no-repeat center center;
		background-size:95px 120px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_http:hover .icon_http{
		background:url('/public/statics/image/admin.png') no-repeat center center;
		background-size:95px 120px;
		width: 100%;
	    height: 170px;
	}
	
	.help_http .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/http_bg.jpg') no-repeat center center;
		background-size:130%;
	}

	/**windows**/
	.icon_windows{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/qe.png') no-repeat center center;
		background-size:135px 60%;
		width: 100%;
	    height: 170px;
	}
	.icon_default{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/qe.png') no-repeat center center;
		background-size:135px 60%;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_windows:hover .icon_default{
		background:url('/public/statics/image/qe.png') no-repeat center center;
		background-size:135px 60%;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_windows:hover .icon_windows{
		background:url('/public/statics/image/qe.png') no-repeat center center;
		background-size:135px 60%;
		width: 100%;
	    height: 170px;
	}
	.help_windows .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/windows_xp.jpg') no-repeat center center;
		background-size:130%;
	}


	.downloadhelp .enterarrow{
		background:url('/public/statics/image/enterarrow.png') no-repeat center center;
	    background-size: 30px 30px;
	    width: 100%;
	    height: 40px;
	}
	
	#help_tomore{
		display:none;
		margin: 0 auto 0 auto;
    	width: 600px;
	}
	#help_tomore a{
		display: block;
	    height: 40px;
	    width: 100%;
	    background: #ffffff;
	    /* background-color: white; */
	    line-height: 40px;
	    text-align: center;
	    color: #3497e3;
	    border-radius: 32px;
	    font-size: 15px;
	    letter-spacing: 4px;
	    border:1px solid #3497e3;
	}
}

@media(min-width: 992px and max-width: 1200px){
	.article_txt{
		width:992px;
		margin:0 auto;
		min-height:800px;
		padding-bottom:20px;
	}
	/**pc端的修改全部写在里面**/
	#cmm_nav{
		padding:0;
		margin:0;
		background:#ffffff;
	}
	.downloadhelp{
		overflow:hidden;
		margin:0 auto;
		width:600px;
		border-bottom:1px solid #ffffff;
		margin-bottom:54px;
	}
	.downloadhelp a{
		display:block;
		width:270px;
	}
	.downloadhelp a:nth-child(2n){
		float:right;
	}
	.downloadhelp a:nth-child(2n+1){
		float:left;
	}


	.downloadhelp .help_box .help_text{
		height:170px;
		background:#222222;
		color:#fff;
		padding:12px;
		text-align:center;

	}

	.downloadhelp .help_box .help_text h4{
		font-size:18px;
		line-height:28px;
		font-weight:bold;
		margin-top:24px;
	}


	.icon_help{
		position:relative;
		/*background:rgba(0,0,0,.4);*/
	}
	.help_img_yy{
		position:absolute;
		left:0;
		top:0;
		width:100%;
		height:100%;
		background:#000000;
		opacity: 0.6;
		z-index:100;
	}
	/**安卓**/
	.icon_android{
		position:relative;
		background:url(/public/statics/image/icon_android.png) no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	    z-index:201;
	}
	.icon_artthumb{
		position:relative;
		background:url(/public/statics/image/icon_android.png) no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	    z-index:201;
	}
	.downloadhelp .help_android:hover .icon_android{
		background:url('/public/statics/image/icon_android_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.help_android .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/android_bg.jpg') no-repeat center center;
		background-size:130%;
	}
	/**apple**/
	.icon_apple{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/icon_apple.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_apple:hover .icon_apple{
		background:url('/public/statics/image/icon_apple_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.help_apple .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/apple_iso10.jpg') no-repeat center center;
		background-size:130%;
	}
	/**http**/
	.icon_http{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/icon_http.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_http:hover .icon_http{
		background:url('/public/statics/image/icon_http_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	
	.help_http .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/http_bg.jpg') no-repeat center center;
		background-size:130%;
	}

	/**windows**/
	.icon_windows{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/icon_windows.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.icon_default{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/icon_download.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_windows:hover .icon_default{
		background:url('/public/statics/image/icon_download_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_windows:hover .icon_windows{
		background:url('/public/statics/image/icon_windows_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.help_windows .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/windows_xp.jpg') no-repeat center center;
		background-size:130%;
	}


	.downloadhelp .enterarrow{
		background:url('/public/statics/image/enterarrow.png') no-repeat center center;
	    background-size: 30px 30px;
	    width: 100%;
	    height: 40px;
	}
	
	#help_tomore{
		display:none;
		margin: 0 auto 0 auto;
    	width: 600px;
	}
	#help_tomore a{
		display: block;
	    height: 40px;
	    width: 100%;
	    background: #ffffff;
	    /* background-color: white; */
	    line-height: 40px;
	    text-align: center;
	    color: #3497e3;
	    border-radius: 32px;
	    font-size: 15px;
	    letter-spacing: 4px;
	    border:1px solid #3497e3;
	}
}

@media (min-width: 768px and max-width: 992px) {
	/**pc端的修改全部写在里面**/
	#cmm_nav{
		padding:0;
		margin:0;
		background:#ffffff;
	}
	.downloadhelp{
		overflow:hidden;
		margin:0 auto;
		width:600px;
		border-bottom:1px solid #ffffff;
		margin-bottom:54px;
	}
	.downloadhelp a{
		display:block;
		width:270px;
	}
	.downloadhelp a:nth-child(2n){
		float:right;
	}
	.downloadhelp a:nth-child(2n+1){
		float:left;
	}


	.downloadhelp .help_box .help_text{
		height:170px;
		background:#222222;
		color:#fff;
		padding:12px;
		text-align:center;

	}

	.downloadhelp .help_box .help_text h4{
		font-size:18px;
		line-height:28px;
		font-weight:bold;
		margin-top:24px;
	}


	.icon_help{
		position:relative;
		/*background:rgba(0,0,0,.4);*/
	}
	.help_img_yy{
		position:absolute;
		left:0;
		top:0;
		width:100%;
		height:100%;
		background:#000000;
		opacity: 0.6;
		z-index:100;
	}
	/**安卓**/
	.icon_android{
		position:relative;
		background:url(/public/statics/image/icon_android.png) no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	    z-index:201;
	}
	.icon_artthumb{
		position:relative;
		background:url(/public/statics/image/icon_android.png) no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	    z-index:201;
	}
	.downloadhelp .help_android:hover .icon_android{
		background:url('/public/statics/image/icon_android_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.help_android .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/android_bg.jpg') no-repeat center center;
		background-size:130%;
	}
	/**apple**/
	.icon_apple{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/icon_apple.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_apple:hover .icon_apple{
		background:url('/public/statics/image/icon_apple_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.help_apple .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/apple_iso10.jpg') no-repeat center center;
		background-size:130%;
	}
	/**http**/
	.icon_http{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/icon_http.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_http:hover .icon_http{
		background:url('/public/statics/image/icon_http_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	
	.help_http .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/http_bg.jpg') no-repeat center center;
		background-size:130%;
	}

	/**windows**/
	.icon_windows{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/icon_windows.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.icon_default{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/icon_download.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_windows:hover .icon_default{
		background:url('/public/statics/image/icon_download_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_windows:hover .icon_windows{
		background:url('/public/statics/image/icon_windows_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.help_windows .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/windows_xp.jpg') no-repeat center center;
		background-size:130%;
	}


	.downloadhelp .enterarrow{
		background:url('/public/statics/image/enterarrow.png') no-repeat center center;
	    background-size: 30px 30px;
	    width: 100%;
	    height: 40px;
	}
	.article_txt{
		width:860px;
		margin:0 auto;
		min-height:600px;
		padding-bottom:20px;
	}
	#help_tomore{
		display:none;
		margin: 0 auto 0 auto;
    	width: 600px;
	}
	#help_tomore a{
		display: block;
	    height: 40px;
	    width: 100%;
	    background: #ffffff;
	    /* background-color: white; */
	    line-height: 40px;
	    text-align: center;
	    color: #3497e3;
	    border-radius: 32px;
	    font-size: 15px;
	    letter-spacing: 4px;
	    border:1px solid #3497e3;
	}
}

@media (max-width: 768px) {
	/**移动端的修改全部写在里面**/
	/*title*/
	.vpntitle{
		margin:auto;
		width:100%;
		/*height:100%;*/
		height:100px;
		
	}
	.vpntitle>.titletext{
		text-align:center;
		font-size:21px;
		color:#026eb8;
		margin-top:24px;
		font-weight:bold;
	}
	.vpntitle>.titlelogo{
		width:170px;
		margin:10px auto;
	}	
	.vpntitle>.titlelogo>img{
		width:100%;
	}
	/**移动端css代码**/
	.help_img_yy{
		position:absolute;
		left:0;
		top:0;
		width:100%;
		height:100%;
		background:#000000;
		opacity: 0.6;
		z-index:100;
	}
	/**下载帮助**/
	.downloadhelp{
		overflow:hidden;
		margin-top:0px !important;
		border-bottom:1px solid #ffffff;
	}
	.downloadhelp a{
		display:block;
		margin: 40px 2% 0 2%;
		float:left;
		width:46%;
	}


	.downloadhelp .help_box .help_text{
		background:#222222;
		color:#fff;
		padding:20px;
		text-align:center;

	}

	.downloadhelp .help_box .help_text h4{
		font-size:12px;
		line-height:26px;
		font-weight:bold;
	}


	.icon_help{
		position:relative;
		background:rgba(0,0,0,.4);
	}
	.icon_artthumb{
		position:relative;
		background:url(/public/statics/image/icon_android.png) no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	    z-index:201;
	}
	/**安卓**/
	.icon_android{
		position:relative;
		z-index:201;
		background:url(/public/statics/image/icon_android.png) no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    padding-bottom:75%;
	}
	.downloadhelp .help_android:hover .icon_android{
		background:url('/public/statics/image/icon_android_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    padding-bottom:75%;
	}
	.help_android .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/android_bg.jpg') no-repeat center center;
		background-size:130%;
	}
	/**apple**/
	.icon_apple{
		position:relative;
		background:url('/public/statics/image/icon_apple.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    padding-bottom:75%;
	    z-index:201;
	}
	.downloadhelp .help_apple:hover .icon_apple{
		background:url('/public/statics/image/icon_apple_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    padding-bottom:75%;
	}
	.help_apple .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/apple_iso10.jpg') no-repeat center center;
		background-size:130%;
	}
	/**http**/
	.icon_http{
		position:relative;
		background:url('/public/statics/image/icon_http.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    padding-bottom:75%;
		z-index:201;
	}
	.downloadhelp .help_http:hover .icon_http{
		background:url('/public/statics/image/icon_http_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    padding-bottom:75%;
	}
	.help_http .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/http_bg.jpg') no-repeat center center;
		background-size:130%;
	}

	/**windows**/
	.icon_windows{
		position:relative;
		background:url('/public/statics/image/icon_windows.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    padding-bottom:75%;
		z-index:201;
	}
	.downloadhelp .help_windows:hover .icon_windows{
		background:url('/public/statics/image/icon_windows_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    padding-bottom:75%;
	}
	.help_windows .icon_help{
		background: rgba(0,0,0,.4) url('/public/statics/image/windows_xp.jpg') no-repeat center center;
		background-size:130%;
	}
	.icon_default{
		position:relative;
		z-index:201;
		background:url('/public/statics/image/icon_download.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}
	.downloadhelp .help_windows:hover .icon_default{
		background:url('/public/statics/image/icon_download_hover.png') no-repeat center center;
		background-size:60px 60px;
		width: 100%;
	    height: 170px;
	}

	.downloadhelp .enterarrow{
		background:url('/public/statics/image/enterarrow.png') no-repeat center center;
	    background-size: 30px 30px;
	    width: 100%;
	    height: 40px;
	}
	.article_txt{
		width:auto;
		margin:0 auto;
		min-height:400px;
		padding-bottom:20px;
		padding:0 12px 20px 12px;
	}
	#help_tomore{
		display:none;
		margin: 0 12px 0 12px;
    	//width: 80%;
	}
	#help_tomore a{
		display: block;
	    height: 40px;
	    width: 100%;
	    background: #ffffff;
	    /* background-color: white; */
	    line-height: 40px;
	    text-align: center;
	    color: #3497e3;
	    border-radius: 32px;
	    font-size: 15px;
	    letter-spacing: 4px;
	    border:1px solid #3497e3;
	}
}