.contact-wrapper{width:100%; float: left; margin:220px 0 100px;}
.contact-content{width:70%; margin:0 auto;}
.cntitle{float:left;width:100%; margin:0 0 40px; font-size:38px;font-weight:500;}
.cn-subtitle{width:100%; float:left;margin:0 0 60px; font-size:20px;line-height: 2em}
.sidrbar-left{width:70%;float: left;margin:0 30% 0 0;line-height: 2em;font-size: 17px;letter-spacing: 0.1em}
@media screen and (max-width: 1600px) {
.contact-wrapper{margin:180px 0 70px;}
}
@media screen and (max-width: 1200px) {
.contact-wrapper{margin:160px 0 55px;}
.contact-content{width:75%;margin: 0 auto}
.cntitle{margin:0 0 30px; font-size:38px}
.cn-subtitle{margin:0 0 50px}
}
@media screen and (max-width: 980px) {
.contact-wrapper{margin:130px 0 40px;}
.contact-content{width:80%;}
.cntitle{margin:0 0 25px;font-size: 30px;}
.cn-subtitle{margin:0 0 40px}	
.sidrbar-left{width:90%;margin:0 10% 0 0}
}
@media screen and (max-width: 767px) {
.contact-wrapper{margin:100px 0 30px}
.contact-content{width:90%;}
.cntitle{margin:0 0 20px; font-size:26px;}
.cn-subtitle{margin:0 0 25px; line-height: 1.8em}
.sidrbar-left{width:100%;margin:0;line-height: 1.8em}
}

.about-bottom{width:100%;float: left; margin:0;}
.bottom-content{width:90%;height: 700px; margin:0 auto 100px;background-position: center center;background-repeat: no-repeat;background-size: cover}
.bottom-tx{width:40%;float: left;margin: 17% 30% 0; letter-spacing: 0.1em;text-indent: -0.1em;color: #fff;text-align: center;}
.info-zx{width: 100%;float:left;font-size:38px;font-weight:500;margin: 0 0 40px;letter-spacing: 0.1em;text-indent: -0.1em}
.info-stx{width:100%;float:left;line-height:2em;margin: 0;font-size: 17px;}
@media screen and (max-width: 1600px) {
.bottom-content{height: 600px; margin:0 auto 70px;}
.bottom-tx{width:50%;margin: 17% 25% 0}
}
@media screen and (max-width: 1200px) {
.bottom-content{height: 500px; margin:0 auto 60px;}
}
@media screen and (max-width: 980px) {
.bottom-content{height: 400px; margin:0 auto 55px;}
.bottom-tx{width:70%;margin: 17% 15% 0}
}
@media screen and (max-width: 767px) {
.bottom-content{height: 310px; margin:0 auto 40px;}
.bottom-tx{width:85%;margin: 17% 7.5% 0}
.info-zx{font-size:26px;margin: 0 0 20px}
.info-stx{ine-height:1.8em;}	
}