@media screen and (max-width: 1200px) {
    .header_text {
        left: 3%;
    }


    .header_text_tittle.animated.bounceInLeft {
        width: 65%;
    }
    .header_text_denglu.animated.bounceInRight {
        width: 32%;
    }
    .yanzheng img {
        margin-right: 0px;
    }
    .example_text h2 {
        position: absolute;
        bottom: 20%;
        padding: 19px;
    }
}
@media screen and (max-width: 990px) {
    .header_text_tittle.animated.bounceInLeft {
        width: 44%;
    }
    .header_text_tittle h1 {
        font-size: 31px;
    }
    .yun_text_i>div i {
        font-size: 52px;
    }
    .yun_text_i>div h2 {
        font-size: 16px;
    }
    .yun_text_i>div p {
        font-size: 13px;
    }
    .ms_header {
        position: relative;
        margin-bottom: 525px;
    }
}
@media screen and (max-width: 770px) {
    .ms_header {
        height: 300px;
    }
    .header_text {
        top: 4%;
    }
    .header_text_tittle.animated.bounceInLeft {
        width: 100%;
        display: block;
    }
    .header_text_denglu.animated.bounceInRight {
        margin-top: 12px;
        display: block;
        width: 100%;
    }
    .header_text_tittle h3 {
        font-size: 20px;
        font-weight: 500;
        margin-bottom: 0px;
    }
    .header_text_tittle>div {
        margin-top: 7px;
    }
    .header_text_tittle button {
        margin-top: 10px;
    }
    .header_text_denglu .tab-content {
        padding-top: 0px;
    }
    .header_text_denglu .input-control {
        margin-bottom: 5px;
    }
    .header_text_denglu .form-control {
        height: 34px;
    }
    .header_text_denglu .input-control.has-icon-left>.form-control {
        font-size: 13px;
    }
    .header_text_denglu .btn-primary {
        width: 100%;
        height: 31px;
        font-size: 16px;
    }
    .yun_text_i>div {

        padding: 6px 10px 25px;
    }
    
}
@media screen and (max-width: 500px) {
    .ms_header>img {
        height: 346px;
    }
    .ms_header {
        height: 127px;
    }
    .header_text_tittle {
        color: #fff;
    }
    .header_text_tittle h1 {
        color: #fff;
        text-align: center;
    }
    .header_text_tittle h3 {
       text-align: center;
    }
    .header_text {
        top: 43%;
        left: 0%;
    }
    .header_text_tittle>div {
        margin-top: 0px;
    }
    .header_text_tittle>div>i {
        margin: 5px;
    }
    .header_text_tittle button {
        margin-left: 30%
    }
    .yun_text_i>div i {
        font-size: 36px;
    }
    .yun_text_i>div {
        padding: 5px 0px 6px;
    }
    .example_text h2 {
        bottom: 42%;
        font-size: 11px;
        padding: 0px;
    }
    .example_text h3 {
        font-size: 12px;
        padding: 0px;    
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        overflow: hidden;
    }
}