.oseaBy {
    max-width: 1920px;
    margin: 0 auto;
}

.osea_1 {
    padding: 0 ;
   margin: 60px 0 0 0;
    text-align: center;
}
.osea_1 .container{
	padding: 60px 0; background-color: #e0e6e4;
}
.osea_1 p {
    font-size: 20px;
    line-height: 36px;
    color: #333333;
}

.osea_2 {
    padding: 80px 0;
}

.osea_2 .txtBody {
    height: 460px;
    background: url("../jpg/oversea_2.jpg") no-repeat center;
    background-size: cover;
    position: relative;
}

.osea_2 .txtBody .content {
    width: 100%;
    height: 100%;
    background-color: rgba(43, 46, 45, .47);
}

.osea_2 .txtBody .content ul {
    font-size: 0;
    width: 100%;
    height: 100%;
}

.osea_2 .txtBody .content ul li {
    display: inline-block;
    width: calc(100% / 4);
    box-sizing: border-box;
    border-left: 1px solid rgba(255, 255, 255, .24);
    height: 100%;
    position: relative;
}

.osea_2 .txtBody .content ul li .box {
    position: absolute;
    left: 25px;
    right: 25px;
    bottom: 80px;
}

.osea_2 .txtBody .content ul li .box h3 {
    font-size: 24px;
    line-height: 30px;
    font-weight: bold;
    color: #fff;
    position: relative;
}

.osea_2 .txtBody .content ul li .box h3::after {
    content: "";
    display: inline-block;
    width: 30px;
    height: 4px;
    background-color: #57a28a;
    position: absolute;
    left: 0;
    bottom: -20px;
}

.osea_2 .txtBody .content ul li .box .mask {
    padding-top: 30px;
    display: none;
}

.osea_2 .txtBody .content ul li .box .mask p {
    font-size: 15px;
    line-height: 24px;
    color: #fff;
}

.osea_2 .txtBody .content ul li:hover {
    background-color: rgba(43, 46, 45, .47);
}

.osea_3 {}

.osea_3 .contBy {
    height: 450px;
    position: relative;
}

.osea_3 .bg {
    position: absolute;
    left: 0;
    width: 50%;
    top: 0;
    bottom: 0;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: left center;
    z-index: -1;
    border-radius: 0 300px 300px 0;
}

.osea_3 .container {
    height: 100%;
    position: relative;
}

.osea_3 .container .txt_body {
    box-sizing: border-box;
    width: 700px;
    padding: 0 45px 0 45px;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

.osea_3 .container .txt_body h3 {
    font-size: 20px;
    line-height: 36px;
    color: #333;
    position: relative;
    padding-bottom: 20px;
}

.osea_3 .container .txt_body ul {
    font-size: 0;
}

.osea_3 .container .txt_body ul li {
    display: inline-block;
    min-width: 50%;
    box-sizing: border-box;
    font-size: 16px;
    line-height: 30px;
    margin-top: 30px;
    padding-left: 30px;
    background: url("../jpg/p_dot.jpg") no-repeat left 9px;
}

.osea_4 {
    padding: 80px 0;
    text-align: center;
}

.osea_4 .top h4 {
    font-size: 28px;
    line-height: 36px;
    color: #333333;
    font-weight: bold;
    margin-bottom: 20px;
}

.osea_4 .top h5 {
    font-size: 20px;
    line-height: 36px;
    color: #333333;
}

.osea_4 .top h5 span {
    color: #016759;
}

.osea_4 .map {
    margin-top: 30px;
}

.osea_4 .map img {
    display: block;
    width: 100%;
}

.osea_4 .map_list ul {
    display: inline-block;
}

.osea_4 .map_list ul li {
    width: 345px;
    float: left;
    margin-right: 60px;
    text-align: left;
    border-bottom: 1px solid #e4e4e4;
    font-size: 20px;
    line-height: 30px;
    padding-left: 30px;
    background: url("../ab_3_list.html") no-repeat left 8px;
    padding-bottom: 20px;
    margin-bottom: 35px;
}

.osea_4 .map_list ul li:nth-child(3n) {
    margin-right: 0;
}

.osea_4 .map_list ul li span {
    float: right;
    font-size: 20px;
    line-height: 30px;
    color: #016759;
    padding-left: 30px;
    background: url("../ab_3_list_span.html") no-repeat left center;
    width: 125px;
}

.osea_5 .drop {}

.osea_5 .swiper-slide .box h3 {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(51, 51, 51, .63);
    padding: 35px 0 35px;
    font-size: 24px;
    color: #fff;
    text-align: center;
}

.osea_5 .swiper-slide .box .drop .txt {
    left: 30px;
    right: 30px;
    text-align: left;
}

.osea_5 .swiper-slide .box .drop .txt h4 {
    font-size: 22px;
    line-height: 30px;
    color: #fff;
    margin-bottom: 20px;
}

.osea_5 .swiper-slide .box .drop .txt p {
    font-size: 18px;
    line-height: 28px;
    color: #fff;
}

.page_tit {
    text-align: center;
    font-size: 32px;
    line-height: 42px;
    font-weight: bold;
    color: #414358;
    padding-bottom: 20px;
    position: relative;
    margin-bottom: 40px;
}

.page_tit::after {
    content: "";
    display: inline-block;
    width: 60px;
    height: 4px;
    background-color: #a21231;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
}