body {
    margin: 0;
    padding: 0;
}

div,
li {
    box-sizing: border-box;
}

.main {
    margin: 0 auto;
    width: 1200px;
    overflow: hidden;
    position: relative;
}

.header {
    height: 80px;
    background: #003458;
    display: flex;
    padding: 0 87px 0 46px;
    align-items: center;
}

.header .logo {
    flex-grow: 1;
}

.header .logo img {
    width: 223px;
    height: 55px;
}

.header ul {
    margin: 0;
    padding: 0;
}

.header ul li {
    display: inline-block;
    font-size: 20px;
    color: #FFFFFF;
    margin-left: 66px;
    cursor: pointer;
    position: relative;
}

.header ul li a {
    color: #fff;
    text-decoration: none;
}

.header ul li.active {
    font-size: 24px;
}

.header ul li.active::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 50%;
    height: 3px;
    background: #ff9b1a;
}

.top {
    height: calc(100vh - 80px);
    background: url(../images/top_bg.png) no-repeat;
    position: relative;
    background-size: 100%;
    max-height: 1080px;
}

.top .big-font {
    font-size: 71.75px;
    position: absolute;
    bottom: 260px;
    width: 100%;
    text-align: center;
    color: #fff;
}

.top .small-font {
    font-size: 36px;
    color: #fff;
    position: absolute;
    bottom: 185px;
    width: 100%;
    text-align: center;
}

.main .types {
    margin-top: 26px;
    font-weight: 400;
    font-size: 30px;
    text-align: center;
    color: #000000;
}

.main .types-box-list {
    position: relative;
    margin-top: 85px;
    height: 550px;
}

.main .types-box {
    width: 200px;
    height: 310px;
    border-radius: 6.25px 6.25px 6.25px 6.25px;
    border: solid 1px #fff;
    background: #ffffff;
    box-shadow: 0 3.13px 3.13px 0 #0000000d;
    position: absolute;
    cursor: pointer;
    padding: 106px 10px 0 10px;
    text-align: center;
    font-size: 16px;
    color: #505050 100%;
    line-height: 30px;
}

.main .types-box:hover {
    border: solid 1px #2979C3;
}

.main .types-box .icon-box {
    width: 120px;
    height: 120px;
    background: #2979c3;
    top: -60px;
    position: absolute;
    transform: rotate(45deg);
    left: 40px;
}

.main .types-box .icon-box .icon-border-box {
    width: 120px;
    height: 120px;
    position: absolute;
    top: 0;
    left: 0;
    transform: rotate(-45deg);
}

.main .types-box .icon-box img {
    height: 62px;
    margin: 0 auto;
}

.main .types-box .icon-box span {
    font-size: 16px;
    color: #FFFFFF;
    text-align: center;
    display: inline-block;
}

.main .wechat-box {
    position: relative;
    display: inline-block;
    width: 175px;
    height: 175px;
    border-radius: 6.25px 6.25px 6.25px 6.25px;
    background: #ffffff;
    box-shadow: 0 1px 6px 0 #0000000d;
    z-index: 5;
    padding: 7px;
    margin-left: 135px;
    margin-top: -88px;
    text-align: center;
    font-weight: 400;
    font-size: 18px;
    margin-bottom: 20px;
}

.images-box {
    margin: 10px 0 15px 37px;
    position: relative;
    overflow: hidden;
}

.images-box img {
    width: 100%;
    vertical-align: top;
}

.zy-font {
    font-weight: 400;
    font-size: 26px;
    text-align: center;
    color: #000000;
    margin-top: 25px;
    letter-spacing: 15px;
    margin-bottom: 55px;
}

.contact-box {
    display: flex;
    align-items: center;
}

.contact-box>div {
    font-weight: 700;
    font-size: 26px;
    text-align: left;
    color: #88A2BD;
    flex-grow: 1;
}

.contact-box>span {
    font-weight: 700;
    opacity: 0.34;
    font-size: 78px;
    color: #88A2BD;
}

.welcome {
    font-weight: 700;
    opacity: 0.34;
    font-size: 26px;
    text-align: left;
    color: #88A2BD;
}

.contact-content {
    margin: 22px 0;
    display: flex;
}

.email {
    padding-left: 52px;
    position: relative;
    font-weight: 700;
    font-size: 22px;
    color: #88A2BD;
    display: inline-block;
}

.email::before {
    content: '';
    background: url(../images/mail.png) no-repeat;
    background-size: 100%;
    position: absolute;
    top: 4px;
    left: 0;
    width: 35px;
    height: 25px;
}

.footer {
    height: 256px;
    background: #003458;
    font-size: 12px;
    color: #57738F;
    text-align: center;
    padding-top: 226px;
}

.product {
    padding: 100px 0 165px 0;
    position: relative;
    background: #003458 url(../images/pro-bg.png) no-repeat;
    background-size: cover;
}

.product .product-info {
    position: relative;
    width: 1200px;
    margin: 0 auto;
    text-align: center;
    z-index: 2;
    color: #fff;
}

.product .product-info .title {
    font-weight: 400;
    font-size: 18px;
    margin-bottom: 16px;
}

.product .product-info .yms_logo {
    width: 280px;
}

.product .product-info .product-info-content {
    margin-top: 13px;
    text-align: left;
    font-weight: 400;
    font-size: 15px;
}

.product .product-info .product-info-content .title {
    margin-bottom: 31px;
}

.product .product-info .product-info-content .info-text {
    padding-left: 12px;
}

.product .product-info .contact {
    width: 692px;
    height: 173px;
    border-radius: 6px;
    background: #ffffff;
    box-shadow: 0 1px 6px 0 #0000000d;
    margin: 62px auto;
    padding: 30px 40px;
    text-align: left;
    color: #000000;
    display: flex;
    align-items: center;
}

.product .product-info .contact .wechat {
    display: inline-block;
    width: 100px;
    text-align: center;
    font-size: 12px;
    font-weight: 400;
}

.product .product-info .contact .wechat img {
    width: 100%;
}

.product .product-info .contact .email {
    margin-left: 90px;
}