.top-introduction {
    width: 100%;
    height: 300px;
    background: url("../image/top_bg_about_us.jpg") no-repeat;
    text-align: center;
    /*background-size: 100% 100%;*/
}

.top-introduction .top-intro-desc {
    padding-top: 120px;
    padding-bottom: 20px;
    font-size: 30px;
    color: #ffffff;
}

.top-introduction .top-intro-btn {
    width: 130px;
    height: 40px;
    color: #ffffff;
    background-color: #f00a0a;
}

.top-contact-header{
    width: 100%;
    height: 160px;
    text-align: center;
    background-color: #3a86ff;
    display: flex;
    align-items: center;
    justify-content: center;
}
.top-contact-header .top-intro-desc {
    font-size: 30px;
    color: #ffffff;
}
.system-intro {
    width: 100%;
    padding: 60px 50px;
    background-color: #ffffff;
}
.system-intro:after{
    content: '';
    display: block;
    clear: both;
}

.intro-area {
}

.intro-content {
    float: left;
}

.intro-content .system-title {
    padding-bottom: 20px;
    font-size: 30px;
    font-weight: 400;
    text-align: left;
    color: #333333;
}
.intro-content .system-desc {
    font-size: 15px;
    line-height: 25px;
    /*height: 212px;*/
    font-weight: 400;
    text-align: left;
}
.system-desc h4{
    margin-top: 20px;
    font-weight: bold;
    font-size: 15px;
}
.system-desc p {
    /*text-indent: 25px;*/
}
.system-desc img {
    max-width: 400px;
    max-height: 265px;
    margin: 0 5px;
}
.system-sub-title {
    margin: 30px 0 15px 0;
}
.system-sub-title h4{
    margin-top: 20px;
    font-weight: bold;
}
.intro-img {
    float: right;
    width: 40%;
    color: #00a0e9;
    text-align: right;
    margin-top: 10px;
}

.company-values {
    width: 100%;
    height: 600px;
    background-color: #999;
    background-image: url("../image/values_about_us.jpg");
}

.company-values .values-area {
    text-align: center;
    padding: 90px 3% 0 3%;
}

.company-values .values-title {
    font-size: 25px;
    color: #ffffff;
    padding-bottom: 30px;
}

.company-values ul li {
    display: inline-block;
    width: 24%;
    min-width: 200px;
    height: 190px;
    padding: 15px;
    color: #ffffff;
    font-size: 20px;
}

.value-circle {
    width: 180px;
    height: 180px;
    opacity: 0.9;
    border-radius: 50%;
    text-align: center;
    margin: 0 auto;
}
.value-circle-zhuanye {
    background: url("../image/about_us_zhuanye.png") no-repeat;
    background-size: 180px;
}
.value-circle-gaoxiao {
    background: url("../image/about_us_gaoxiao.png") no-repeat;
    background-size: 180px;
}
.value-circle-chengxin {
    background: url("../image/about_us_chengxin.png") no-repeat;
    background-size: 180px;
}
.value-circle-jiazhi {
    background: url("../image/about_us_jiazhi.png") no-repeat;
    background-size: 180px;
}
.company-vision {
    width: 100%;
    height: 300px;
    background-color: #999;
    background: url("../image/values_about_us.jpg") no-repeat;
}
.company-certificate {
    width: 100%;
    /*background-color: #ffffff;*/
    margin-bottom: 20px;
}

.company-certificate .certificate-area {
    padding: 5% 5%;
    text-align: center;
}

.company-certificate ul li {
    margin: 30px auto;
    vertical-align: top;
    padding: 0 10px;
}
.company-certificate ul li img{
    width: 100%;
}
.company-certificate .certificate-content {
    margin-top: 30px;
    text-align: left;
}
.certificate-content>.content {
    margin-top: 20px;
    font-size: 14px;
    color: #999;
}
.certificate-content h4 {
    font-weight: bolder;
}
.link-form .system-desc{
    margin-top: 50px;
}
.form-horizontal .control-label {
    text-align: left;
    padding-top: 0;
}
.form-group {
    margin: 20px 0;
}
.form-line {
    margin: 40px 0;
}
.yzcodeimg {
    width: 160px;
    height: 45px;
    margin: 5px 0 ;
    cursor: pointer;
}
@media (max-width: 768px) {
    .intro-content {
        width: 100%;
    }
    .intro-img {
        width: 100%;
        float: inherit;
        text-align: center;
    }
    .company-values ul li {
        display: inline-block;
        width: 49%;
        min-width: unset;
        height: unset;
        padding: 15px;
        color: #ffffff;
        font-size: 20px;
    }
    .value-circle {
        width: 125px;
        height: 125px;
        background-size: 125px;
    }
}

@media screen and (max-width: 450px){
    .top-introduction .top-intro-desc{
        font-size: 24px;
    }
    .about-us-container .container{
        padding: 0px;
    }
    .system-intro{
        padding: 30px;
    }
    .system-sub-title h4{
        font-size: 15px;
    }
    .intro-content .system-title{
        font-size: 24px;
    }
    .intro-content .system-desc {
        font-size: 12px;
    }
    .link-form h4{
        font-size: 14px;
    }
    .form-control.input-sm{
        height: 40px;
    }
}