* { padding: 0; margin:0}
ul,li {
    list-style-type:none;
}
input, textarea, button {
    outline: none;
}
a {
    text-decoration: none;
    color:#4e4e4e;
}
html {
    scroll-behavior: smooth;
}
#header {
    height:100px;
    /*background:#fff;*/
    position:fixed;
    left:0;
    top:0;
    width:calc(100% - 200px);
    display:flex;
    flex-direction: row;
    justify-content: space-between;
    padding:0 100px;


}
#header.fixed {
    background-color: #fff;
    -webkit-transition: color, background-color .4s ease-out;
    transition: color, background-color .4s ease-out;
}
#header.fixed .nav .nav_item a {
    color: #333 !important;
}
.target-element {
    /*scroll-margin-top: 100px; !* 向上偏移40px *!*/
}
#header .logo img {
    height:100px;
}
#header .nav {
    display:flex;
    flex-direction: row;
}
#header .nav .nav_item {
    display:flex;
    height:100px;
    align-items: center;
    justify-content: center;
    padding: 0 35px;
}
#header .nav .nav_item:hover {
    background:#005bac;
    color:#fff;
}
#header .nav .nav_item:hover a {
    color:#fff !important;
}
#header .nav .nav_item a {
    color:#fff;
    /*display:block;*/
    /*height:100%;*/
    /*width:100%;*/
    /*display:flex;*/
    /*align-items: center;*/
    /*justify-content: center;*/
}
/*#header .nav .nav_item a:hover {*/
/*    background:#005bac;*/
/*    color:#fff;*/
/*}*/
#header .nav .nav_item:last-child {
    /*padding-right:0;*/
}
#page {
    height:100vh;
    width:100vw;
    background-size:cover;
    background-position: center center;
}

#about {
    background:#eee;
    padding:100px 0;
}
#about .main {
    width:1280px;
    text-align:center;
    margin:0 auto auto;
}
#about .main .title {
    font-size:35px;
    color:#222;
    margin-bottom:10px;
    font-weight:bold;
}
#about .main .desc {
    font-size:20px;
    color:#333;
}
#about .content {
    margin-top:20px;
    color:#555;
    font-size:16px;
    line-height:30px;
    text-indent:2em;
    text-align:left;
}
#about .num {
    display:flex;
    flex-direction: row;
    margin-top:40px;
}
#about .num .item {
    width:290px;
    margin-right:40px;
    background:#fff;
    display: flex;
    flex-direction: column;
    padding:40px 0;

    transition: all 0.5s;

}
#about .num .item:last-child {
    margin:0;
}
#about .num .item:hover {
    background-color: #005bac;
}
#about .num .item:hover .n, #about .num .item:hover .t {
    color:#fff;
}
#about .num .item .n {
    color: #005bac;
    font-size: 40px;
    line-height: 48px;
    font-weight:bold;
}
#about .num .item .t {
    font-size: 16px;
    color: #555;
    line-height: 24px;
    margin-top:5px;
}
#about .btn {
    width: 180px;
    height: 50px;
    line-height: 50px;
    border-radius: 25px;
    text-align: center;
    font-size: 16px;
    color: #fff;
    background-color: #005bac;
    margin: 0 auto;
    margin-top:40px;
}

#hexin {
    padding:100px 0;
}
#hexin .title {
    font-size: 32px;
    color:#045ba8;
    text-align:center;
}
#hexin .title_sub {
    color:#999;
    font-size:16px;
    text-align:center;
    margin-top:5px;
}
#hexin .list {

    width:1280px;
    margin:0 auto auto;
    display:flex;
    flex-direction: row;
    margin-top:40px;
}
#hexin .list .item {
    width:265px;
    padding: 20px;
    margin-right:20px;
    box-shadow: 0px 5px 30px 0px rgba(15, 91, 183, 0.1);
}
#hexin .list .item:last-child {
    margin-right:0;
}
#hexin .list .item .image {
    height: 210px;
    width:265px;
    background-size:cover;
    margin-bottom:30px;
}
#hexin .list .item .t {
    font-size:20px;
    color:#262626;
    text-align:center;
}
#hexin .list .item .c {
    font-size:14px;
    color:#989898;
    margin-top:30px;
    line-height:1.5;
}

#contact {
    padding:100px 0;
    background-image: url("../images/lxb.jpg");
    background-repeat: no-repeat;
    background-size:cover;
}
#contact .title {
    text-align:center;
    /*font-size: 32px;*/
    /*color:#045ba8;*/
}
#contact .title img {
    display: block;
    margin:0 auto auto;
}
#contact .title_en {
    color:#333;
    font-size: 18px;
    font-family: Arial;
    text-align:center;
    /*margin-top:5px;*/
}
#contact .title_sub {
    font-size: 22px;
    height: 40px;
    letter-spacing: 3px;
    color:#333;
    text-align:center;
    margin-top:10px;
}
#contact .title_sub_en {
    font-size: 17px;
    font-family: Arial;
    text-transform: uppercase;
    color:#333;
    text-align:center;
}
#contact .line {
    width:100px;
    height:3px;
    background:#045ba8;
    margin:0 auto auto;
    margin-top:20px;
}
#contact .list {
    width:1000px;
    margin:0 auto auto;
    display:flex;
    flex-direction: row;
    margin-top:60px;
}
#contact .list .item {
    width:33.33333%;
    display:flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
#contact .list .item .t {
    font-size:18px;
    font-weight:bold;
    color:#045ba8;
    margin-bottom:20px;
}
#contact .list .item img {
    width:200px;
    height:200px;
}
#contact .list .item .e {
    font-size:16px;
    color:#333;
    margin-top:20px;
}
#contact .pt {
    margin-top:80px;
    text-align: center;
}
#contact .pt .pt_title {
    position:relative;

}
#contact .pt .pt_title .n {
    font-size:25px;
    font-weight:bold;
    color:#045ba8;
    width:400px;
    margin:0 auto auto;
    text-align:center;
    position:relative;
    z-index:1;
}
#contact .pt .pt_title .line_l {
    height:2px;
    width:150px;
    background:#045ba8;
    position:absolute;
    left:50%;
    margin-left:-300px;
    top:17px;
}
#contact .pt .pt_title .line_r {
    height:2px;
    width:150px;
    background:#045ba8;
    position:absolute;
    left:calc(50% + 450px);
    margin-left:-300px;
    top:17px;
}
#contact .pt img {
    width:200px;
    height:200px;
    margin-top:30px;
}
#contact .pt p {
    font-size:14px;
    color:#333;
    margin-top:10px;
}

#footer {
    height:100px;
    line-height:100px;
    text-align:center;
    font-size:14px;
    background:#005bac;
    color:#fff;
}

@media screen and (orientation:portrait) {
    #page {
        height:50vh;
    }
}
@media screen and (orientation:landscape) {
    #page {
        height:100vh;
    }
}