.tx-about-title h4 b {
    padding: 0 20px;
    background: #fff;
}
.tx-about-title h4 {
    margin: 15px 0px;
    font-size: 35px;
    color: #c0191f;
    font-family: "FZHTJW";
    background: url(images/about-title-bg.png) left center repeat-x;
}
.tx-about-title {
    margin-top: 60px;
    padding: 0 10%;
    text-align: center;
}
.tx-float {
    float: left;
    width: 100%;
    background-color: #fff;
}
.tx-center {
    margin: 0 auto;
    max-width: 1100px;
    clear: both;
    position: relative;
}
.tx-about-title em {
    font-size: 14px;
    color: #7c7c7c;
}
.tx-about-introduce-main {
    margin-top: 30px;
}
.tx-about-introduce-main p {
    font-size: 18px;
    color: #333;
    line-height: 32px;
    margin-bottom: 15px;
	padding:0px 15px;
	text-indent: 2em;
}
.tx-about-introduce-img {
    margin-top: -170px;
}
.tx-about-introduce-img img {
    width: 100%;
    height: auto;
}
.tx-center {
    margin: 0 auto;
    max-width: 1100px;
    clear: both;
    position: relative;
}
.tx-about-introduce-main.tx-tops {
    margin-top: 0px;
}
.tx-about-ensure-main {
    margin-top: 50px;
}
.tx-about-ensure-main li {
	float: left;
    padding: 15px;
}

.tx-about-ensure-main li span {
    float: left;
    width: 100%;
    background: #f7f7f7;
    padding: 30px 15px;
    text-align: center;
}
.tx-about-ensure-main li img {
    width: 100%;
    height: auto;
    max-width: 54px;
    margin-bottom: 10px;
}
.tx-about-ensure-main li h4 {
    font-size: 18px;
    color: #c0101b;
}
.tx-about-ensure-main li em {
    font-size: 12px;
    color: #c0101b;
}
.tx-about-ensure-main li p {
    font-size: 12px;
    color: #5a5a5a;
    margin-top: 10px;
    line-height: 21px;
    text-align: left;
}
.tx-about-server-main {
    margin-top: 50px;
    color: #fff;
    text-align: center;
}
.tx-about-server-main span.span1 {
    background: url(images/ab-server-img1.jpg) center center no-repeat;
}
.tx-about-server-main span {
    padding: 60px 0;
    margin: 15px;
}
.tx-about-server-main span h4 {
    font-size: 24px;
    border-bottom: 1px solid #fff;
    padding-bottom: 10px;
    margin: 0 10%;
}
.tx-about-server-main span em {
    font-size: 16px;
    line-height: 23px;
    display: block;
    font-family: 黑体;
    margin: 20px 0px 10px;
}
.tx-about-server-main span a {
    font-size: 13px;
    color: #c2232a;
    background: #fff;
    border: 1px solid #c2232a;
    padding: 4px 10px;
    border-radius: 8px;
}
.tx-about-server-main span.span2 {
    background: url(images/ab-server-img2.jpg) center center no-repeat;
}
.tx-about-server-main span.span3 {
    background: url(images/ab-server-img3.jpg) center center no-repeat;
}
.tx-about-contact-main {
    margin-top: 100px;
}
.tx-about-contact-main span {
    border: 1px solid #e5e5e5;
    padding: 0 40px 40px;
    text-align: center;
    min-height: 306px;
}
.tx-about-contact-main span .icon {
    padding: 15px;
    border: 1px solid #e5e5e5;
    border-radius: 100px;
    margin-top: -60px;
    background: #fff;
}
.tx-about-contact-main span h4 {
    font-size: 18px;
    text-align: center;
    padding: 20px 0;
}
.tx-about-contact-main span em {
    display: block;
    width: 100%;
    font-size: 14px;
    color: #535353;
    line-height: 36px;
}
.tx-about-contact-main  {padding-bottom: 50px;}
.tx-about-contact-main li{margin-bottom: 85px;}

.fourlogo_cen {
   
    padding-top: 30px;
}
@media only screen and (max-width: ) {
.tx-about-ensure-main li {
    width: 100%;
    
}
}