@media screen and (max-width:1024px){  
.wrapper { width:100%; }
#header { position:static; height:auto; }
.m_head_wrap { background:none; padding:0; }
.m_head_logo { width:100%; float:none; display:block; }
.m_head_logo img { border:0; max-width:330px; }

.m_head_nav { width:100%; float:none; background-color:#00a0a9; display:block; }
.m_head_nav ul li { height:40px; }
.m_head_nav ul li a { display:block; line-height:40px; text-align:center; color:#fff; }
}

@media screen and (max-width:768px){
.brand_dd{height:176px;}
.m_about_wrap { width:48%; margin:1%; }
.m_about_list { width:90%; padding:5%; }
.m_news_wrap {height:350px; }
.m_pro_wrap { margin-top:10px; height:auto; }
.m_pro_hd { width:98%; margin:0 auto; height:auto; }
.m_pro_bd { padding-top:15px; padding-bottom:15px; height:inherit;}
.m_pro_bd ul li { width:31.3%; margin:1%; }
.m_pro_bd ul li span { line-height:30px; }

.hidden-xm { display:none; }
.main{height:414px; padding:23px 20px 0;}
}
@media screen and (max-width:688px){
.brand_dt{width:20%;}
.main{height:458px;}
}
@media screen and (max-width:640px){
.wrapper { width:96%; margin:0 auto; }
.wrapper1 { width:100%; margin:0 auto; }
#header { position:static; height:auto; }
.m_head_wrap { background:none; padding:0; }
.m_head_logo { width:100%; float:none; display:block; }
.m_head_logo img { border:0; max-width:70%; }
.m_head_nav { width:100%; float:none; background-color:#00a0a9; display:block; }
.m_head_nav ul li { height:50px; display:none; }
.m_head_nav ul li.block-xs { display:inline-block; width:25%; }
.m_head_nav ul li a { display:block; line-height:50px; text-align:center; color:#fff; }

.m_about_wrap { width:100%; margin:0; }
.m_about_list { width:90%; padding:5%; }
.m_news_wrap { width:96%; height:280px; margin:0 0 12px 0; }
.m_join_wrap { width:100%; margin:0; }
.m_join_list { width:90%; padding:5%; }

.m_pro_wrap { margin-top:0; height:auto; }
.m_pro_hd { width:98%; margin:0 auto; }
.m_pro_bd { padding-top:15px; padding-bottom:15px; }
.m_pro_bd ul li { width:48%; margin:1%; }
.m_pro_bd ul li span { line-height:30px; }

.m_com_wrap p { text-align:center; }

.hidden-xs { display:none; }

#mobile_nav_wrap { height:49px; width:100%; display:block; }
#mobile_nav { width: 100%; height: 49px; opacity: 1; width: 100%; position:fixed; left:0; bottom:0; display:block; z-index:10010; background:url(../images/toolr_bg.jpg) repeat-x left top; }
#mobile_nav .img { background-position: center 3px; background-repeat: no-repeat; background-size: 18px 18px;}
#mobile_nav .img img { padding: 3px 0 0 0; height: 24px;  color: #fff; line-height: 48px; vertical-align: middle;}
#mobile_nav .home { width:60px; height:60px; background:url(../images/home.png) no-repeat center center; background-size:100% 100%; border-radius:60px;  margin-right: 0; position: relative; vertical-align: middle; display: inline-block; margin-top:-12px; }

#mobile_nav .icon { color: #fff; display: inline-block; float: none; font-size: 18px; height: 18px; margin-right: 0; position: relative; vertical-align: middle;
 width: 18px; }
#mobile_nav > a, #mobile_nav > div { color: #fff;  cursor: pointer; float: left;  font-size: 0.75em; height: 100%; line-height: 20px;  position: relative; text-align: center; width: 20%; }
#mobile_nav a:hover { text-decoration:none; }
#mobile_nav .menu ul { background-color: #414141; border-radius: 6px; bottom: 44px; display: none; font-size: 0.875em; margin-bottom: 8px;  max-height: 311px; overflow-x: hidden; overflow-y: scroll; padding: 0 10px; position: absolute; left: 0; }
#mobile_nav .menu ul li { border-bottom: 1px solid #6a6b6c; }
#mobile_nav .menu ul li:last-child { border: medium none;}
#mobile_nav .menu ul li a { background-color: inherit; color: #ffffff; display: block; height: 38px; line-height: 38px; overflow: hidden; text-align: center; text-overflow: ellipsis; white-space: nowrap; width: 75px; font-size:1.16em; }
#mobile_nav ul::after { border-left: 10px solid transparent; border-right: 10px solid transparent; border-top: 10px solid #434343; bottom: 45px; content: ""; height: 0; position: fixed; width: 0; }
}
@media screen and (max-width:480px){ 
.brand_dd{background:none;}
.brand_dd{height:auto;}
.brand_dt{ width:80%; float:none; margin:auto; border-bottom:1px solid #ccc;}
.brand_dx{border:none;  border-bottom:1px solid #ccc;}
.m_main_hb{margin:12px 0 0 0;}
#m_pro_list{margin-top:0;}
#m_pro_list .bd ul li{width:49%;}
.nofirst1, .nofirst3, .nofirst5, .nofirst7{margin:0 2% 0 0;}
.nofirst2, .nofirst4, .nofirst6, .nofirst8{margin:0 0 0 0;}
.main{height:390px; overflow:hidden;}

.hd{font-size:30px; color:#484848; text-align:left; height:40px; line-height:30px; margin-bottom:22px; font-family:Geneva, Arial, Helvetica, sans-serif;}
.hd em{color:#111; font-size:18px; font-style:normal; line-height:30px; padding-bottom:22px; background:url(../images/dtd_em.jpg) no-repeat 1px bottom; font-family:"Microsoft YaHei"; padding-bottom:15px; }

.main_abuot{ color:#111; line-height:24px;}

.more{color:#009999; width:168px; height:32px; line-height:32px; text-indent:50px; border-radius:17px; background:url(../images/m_more.png) no-repeat 120px center; border:1px solid #009999; font-size:13px; margin-top:185px;}

.m_news_wrap { width:96%; height:280px; margin:0 0 12px 0; }
@media screen and (max-width:360px){

}
@media screen and (max-width:320px){
    
}