/* 大于1200px */
@media (min-width: 1200px) {
    .box {
        width: 1200px;
    }

.message.b>div:nth-child(1),
.message.b>div:nth-child(3) {
    width: calc(50% - 20px);
    margin-right: 20px;
}

}

/* 小于1200px */
@media (max-width: 1200px) {
    .header .title {
        padding: 3px 15px;
    }

}

/* 小于768px 平板样式 */
@media (max-width:768px) {
    ul.nav {
        width: 100%;
        height: 0px;
        margin: 0;
        overflow: hidden;
        position: fixed;
        top: 0;
        left: 0;
        background: #fff;
        transition: all 1s;
        z-index: 10;
    }

    ul.nav li {
        float: none;
        text-align: center;
    }

    ul.nav li a {
        line-height: 0px;
    }

    .navbtn {
        display: block;
    }

    .banner {
        height: 300px;
    }

    .advantage .content.a p,
    .advantage .content.b p {
        margin: 0 1em 20px;
    }

    .advantage .content.b>div>div {
        margin-bottom: 20px;
    }

    .location {
        display: none;
    }

}

/* 小于425px 手机样式 */
@media (max-width: 425px) {
    body{
        margin-bottom:60px;
    }
    .index .box {
        padding: 3em 0;
    }

    .logo {
        padding-left: 10px;
        padding-top:0;
    }
    .logo img{
            height: 30px;
    }
    .logo span {
        padding-right: 0;
    }

    .logo span h1 {
        font-size: 20px;
        line-height: 30px;
    }
    .logo span p {
        display: none;
    }
    .phone{
        position: relative;
    right: 10px;
    display:none;
    }
    .phone b{
            font-size: 16px;
    }
    .phone p{
            font-size: 18px;
    }
    .language {
            margin-top: 6px;
        }

    .header .title{
        padding:0;
    }
    ul.nav.a li{
        width:100%;
    }
    .banner {
        height: 170px;
    }
    .next_button,
    .prev_button{
        display:none;
    }
    .next_button {
            right: 5px !important;
    }
    .heading-section {
            margin: 2em 0px 30px !important;
    }
    .heading-section p {
        font-size: 50px;
        margin-bottom: -30px;
    }
    .heading-section.a h3 {
        font-size: 34px;
    }
    .cooperation-list{
        width:50%;
    }
    .message .col-sm-6 {
        width: 100%;
        float: left;
    }

    .message .col-sm-6 .col-sm-12 input,
    .message .col-sm-6.fr .col-sm-12 textarea {
        width: 60%;
    }

    .message .col-sm-12.btn {
        width: 100%;
        padding: 0;
    }
    .footer{
        display:none;
    }
    .footer br {
        display: block;
    }

    .footMenu {
        display: block;
    }

    #toolbar {
        display: none;
    }
    .phoneNone{
        display:none;
    }
}