.fw {
    width: 1700px;
    max-width: 100%;
    margin: 0 auto;
    padding-left: 40px;
    padding-right: 40px;
}

.header {
    position: fixed;
    width: 100%;
    left: 0;
    top: 0;
    z-index: 999;
    border-bottom: 1px solid rgba(255, 255, 255, .3);
    transition: all .3s ease;
}

.header.onhead {
    background-color: #fff;
    border-bottom: 1px solid #eee;
}

.header .fw {
    display: flex;
    align-items: center;
    height: 100px;
    justify-content: space-between;
    position: relative;
}

.header .logo {
    display: block;
    height: 100px;
    line-height: 100px;
    position: relative;
    left: 0;
    transition: all ease .5s;
}

.header .logo img {
    max-height: 52px;
}

.navbtn {
    display: none;
    overflow: hidden;
    width: 60px;
    height: 60px;
    cursor: pointer;
    z-index: 999;
    transition: all .6s ease;
    position: relative;
    margin-left: 15px;
}

.navbtn .line {
    width: 32px;
    height: 3px;
    background: #fff;
    display: block;
    position: absolute;
    z-index: 5;
    top: 18px;
    left: 50%;
    margin: 0px 0px 0px -16px;
    transition: all .6s ease;
}

.navbtn .line2 {
    top: 28px;
}

.navbtn .line3 {
    top: 38px;
}

body.open .navbtn .line1 {
    top: 30px;
    -webkit-transform: rotate(225deg);
    transform: rotate(225deg);
}

body.open .navbtn .line2 {
    -ms-filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);
    filter: alpha(opacity=0);
    opacity: 0;
    -moz-opacity: 0;
    -khtml-opacity: 0;
    -webkit-opacity: 0;
    left: -100%;
}

body.open .navbtn .line3 {
    top: 30px;
    -webkit-transform: rotate(-225deg);
    transform: rotate(-225deg);
}

.header.onhead .navbtn .line {
    background-color: #333;
}

.headright {
    display: flex;
    align-items: center;
}

.language {
    position: relative;
    right: 0;
    transition: all .6s ease;
}

.language .item {
    display: flex;
    align-items: center;
    height: 32px;
    line-height: 32px;
    border-radius: 16px;
    color: #2E3786;
    font-size: 14px;
    background-color: #fff;
    padding: 0 15px 0 43px;
    background-image: url(../images/icon_yuyan.png);
    background-position: 14px center;
    background-repeat: no-repeat;
}

.onhead .language .item {
    background-image: url(../images/icon_yuyan2.png);
}

.language .item img {
    width: 8px;
    height: 8px;
    margin-left: 10px;
    transition: All 0.4s ease-in-out;
    -webkit-transition: All 0.4s ease-in-out;
    -moz-transition: All 0.4s ease-in-out;
    -o-transition: All 0.4s ease-in-out;
}

.language .item.on img {
    transform: rotate(180deg);
    -webkit-transform: rotate(180deg);
    -moz-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
}

.language .listwrap {
    position: absolute;
    width: 140px;
    top: 100%;
    padding-top: 2px;
    right: 0;
    display: none;
}

.language .list {
    background-color: #fff;
    box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, .2);
    padding: 10px 0;
    border-radius: 5px;
}

.language .list a {
    color: #333;
    font-size: 14px;
    display: block;
    text-align: center;
    font-family: 'mon';
    padding: 4px 0;
}

.language .list a:hover {
    color: #2E3786;
    font-weight: bold;
}

.mainbox {
    width: 100%;
    overflow: hidden;
}

.nav {
    display: flex;
    align-items: center;
}

.nav li {
    margin-right: 40px;
    position: relative;
}

.nav li .item {
    display: inline-block;
    color: #fff;
    font-size: 14px;
    height: 100px;
    line-height: 100px;
}

.subnav {
    position: absolute;
    width: 150px;
    left: 50%;
    margin-left: -75px;
    top: 100px;
    z-index: 99;
    background-color: rgba(255, 255, 255, .9);
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all .3s ease;
    box-shadow: 0 0 10px 0 rgba(0, 0, 0, .1);
}

.subnav a {
    display: block;
    color: #333;
    font-size: 14px;
    padding: 8px 0;
    text-align: center;
    transition: all .3s ease;
}

.subnav a:hover {
    color: #2E3786;
    font-weight: bold;
    background-color: #fff;
}

.nav li.down .subnav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.header.onhead .nav li .item {
    color: #333;
}

.header.onhead .subnav a {
    color: #333;
}

.header.onhead .language .item {
    background-color: #2E3786;
    color: #fff;
}

/* 导航容器优化 */
.nav-container {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
    margin-right: 35px;
}

.nav-item:last-child {
    margin-right: 0;
}

.nav-link {
    display: inline-block;
    color: #fff;
    font-size: 15px;
    height: 100px;
    line-height: 100px;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #3B8B6E, #4A90D9);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover {
    color: #3B8B6E;
}

.nav-link.active {
    color: #3B8B6E;
    font-weight: 600;
}

/* 下拉菜单 */
.has-submenu .submenu {
    position: absolute;
    top: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 200px;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 12px;
    padding: 15px 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    z-index: 100;
}

.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.has-submenu .submenu li {
    list-style: none;
}

.has-submenu .submenu a {
    display: block;
    color: #333;
    font-size: 14px;
    padding: 12px 25px;
    text-align: center;
    transition: all 0.3s ease;
    text-decoration: none;
}

.has-submenu .submenu a:hover {
    color: #3B8B6E;
    background: linear-gradient(135deg, rgba(59, 139, 110, 0.08), rgba(74, 144, 217, 0.08));
    font-weight: 600;
}

/* 头部操作区域 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-customer-area {
    display: inline-block;
    padding: 12px 28px;
    background: linear-gradient(135deg, #3B8B6E 0%, #2d6e57 100%);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 25px;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(59, 139, 110, 0.3);
}

.btn-customer-area:hover {
    background: linear-gradient(135deg, #4ca07d 0%, #3B8B6E 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(59, 139, 110, 0.4);
}

/* 滚动后导航样式 */
.header.onhead .nav-link {
    color: #333;
    height: 70px;
    line-height: 70px;
}

.header.onhead .nav-link::after {
    bottom: 20px;
}

.header.onhead .has-submenu .submenu {
    top: 70px;
}

.header.onhead .btn-customer-area {
    padding: 10px 24px;
}

/* 移动端响应式 */
@media (max-width: 1200px) {
    .nav-item {
        margin-right: 25px;
    }
    
    .nav-link {
        font-size: 14px;
    }
    
    .btn-customer-area {
        padding: 10px 20px;
        font-size: 13px;
    }
}

@media (max-width: 992px) {
    .nav-container {
        display: none;
        position: fixed;
        top: 100px;
        left: 0;
        right: 0;
        background: #fff;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        max-height: calc(100vh - 100px);
        overflow-y: auto;
    }
    
    body.open .nav-container {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav-item {
        margin-right: 0;
        margin-bottom: 15px;
        width: 100%;
    }
    
    .nav-link {
        color: #333;
        height: auto;
        line-height: 1.5;
        padding: 10px 0;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .has-submenu .submenu {
        position: static;
        transform: none;
        box-shadow: none;
        background: #f8f9f9;
        border-radius: 8px;
        margin-top: 10px;
        padding: 10px 0;
        opacity: 1;
        visibility: visible;
    }
    
    .has-submenu .submenu a {
        text-align: left;
        padding: 10px 20px;
    }
    
    .header-actions {
        display: none;
    }
    
    body.open .header-actions {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        margin-top: 20px;
        padding-top: 20px;
        border-top: 1px solid #eee;
    }
    
    .btn-customer-area {
        width: 100%;
        text-align: center;
    }
}

.footer {
    width: 100%;
    background-color: #15344B;
    overflow: hidden;
}

.foot-bottom {
    text-align: center;
    padding: 50px 0;
    color: #FFFFFF;
    font-size: 14px;
    border-top: 1px solid #707070;
}

.foot-bottom a {
    color: #FFFFFF;
}

.foot-top {
    padding: 50px 0;
}

.foot-top .fw {
    display: flex;
    justify-content: space-between;
}

.foot-right {
    display: flex;
}

.foot-right .item {
    margin-left: 140px;
}

.foot-right .tt {
    color: #FFFFFF;
    font-size: 18px;
    margin-bottom: 20px;
    display: block;
}

.foot-right .list a {
    display: block;
    color: rgba(255, 255, 255, .6);
    font-size: 14px;
    margin-bottom: 10px;
}

.foot-right .list a:hover {
    color: #fff;
}

.foot-left {
    flex-shrink: 0;
}

.foot-left .t1 {
    color: #fff;
    font-size: 14px;
    margin-bottom: 6px;
}

.foot-left .tel {
    color: #fff;
    font-size: 28px;
}

.foot-left .logo {
    margin-top: 60px;
}

.foot-left .logo img {
    max-height: 93px;
}

.more {
    display: inline-block;
    background-color: #2E3786;
    color: #fff;
    font-size: 14px;
    padding: 0 36px;
    height: 50px;
    line-height: 50px;
    border-radius: 25px;
    transition: all .3s ease;
}

.more span {
    display: inline-block;
    margin-right: 20px;
}

.more:hover {
    opacity: .9;
}

.index-title {
    color: #272727;
    font-size: 56px;
    font-weight: normal;
}

.index-brief {
    color: #272727;
    font-size: 18px;
    line-height: 2;
}

.index-title.white {
    color: #fff;
}

.index-brief.white {
    color: #fff;
}

.subbanner {
    width: 100%;
    overflow: hidden;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    padding-top: 170px;
    padding-bottom: 170px;
}

.subbanner .text {
    text-align: center;
}

.subbanner .t1 {
    color: #fff;
    font-size: 40px;
    font-family: 'monbold';
    letter-spacing: 8px;
    line-height: 1.3;
}

.subbanner .t2 {
    color: #fff;
    font-size: 54px;
    margin: 30px 0;
    line-height: 1.2;
}

.subbanner .t3 {
    color: #fff;
    font-size: 20px;
}

.inpage {
    padding: 6% 0;
    width: 100%;
    overflow: hidden;
}

.inpage .fw {
    display: flex;
    align-items: stretch;
}

.inleft {
    width: 320px;
    flex-shrink: 0;
    margin-right: 100px;
    padding-top: 80px;
    z-index: 99;
    position: relative;
}

.inleft .wrap {
    position: relative;
    z-index: 9;
}

.inright {
    flex: 1;
    overflow: hidden;
}

.inleft .title {
    font-weight: bold;
    color: #333333;
    font-size: 42px;
    padding-bottom: 20px;
    border-bottom: 1px solid #2E3786;
}

.intitle {
    font-weight: bold;
    color: #272727;
    font-size: 28px;
    margin-bottom: 40px;
}

.intitle.line {
    border-bottom: 1px solid #2E3786;
    padding-bottom: 24px;
}

.about-brief {
    color: #2E3786;
    font-size: 18px;
    line-height: 2;
    padding-bottom: 18px;
    border-bottom: 1px solid #2E3786;
    margin-bottom: 40px;
}

.menus {
    margin-top: 40px;
}

.menus a {
    display: block;
    color: #333333;
    font-size: 18px;
    margin-bottom: 20px;
    font-family: 'pingfang';
}

.menus a:hover,
.menus a.on {
    color: #2E3786;
}

.about-brief2 {
    color: #666666;
    font-size: 18px;
    line-height: 2;
    margin-bottom: 50px;
}

.yslist li+li {
    margin-top: 30px;
}

.yslist li .t1 {
    background-image: url(../images/kk.png);
    background-position: left center;
    background-repeat: no-repeat;
    padding-left: 24px;
    color: #333333;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 12px;
}

.yslist li .desc {
    color: #666666;
    line-height: 1.8;
    font-size: 14px;
}

.about-images {
    margin-bottom: 80px;
    margin-top: 40px;
    overflow: hidden;
}

.about-images li {
    width: auto;
}

.about-images li img {
    width: 100%;
}

.contactbox {
    padding: 6% 0;
}

.contactbox .fw {
    display: flex;
    align-items: stretch;
}

.contactbox .left {
    width: 50%;
    padding-right: 6%;
}

.contactbox .img {
    margin-bottom: 50px;
}

.contactbox .img img {
    width: 100%;
}

.contactbox .t1 {
    color: #999999;
    font-size: 16px;
    margin-bottom: 20px;
}

.contactbox .title {
    color: #333333;
    font-size: 44px;
    font-weight: bold;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid #2E3786;
}

.contactbox .info {
    color: #333333;
    font-size: 18px;
    line-height: 1.7;
}

.contactbox .info p+p {
    margin-top: 10px;
}

.contactbox .right {
    width: 50%;

    overflow: hidden;
}

.contactbox .map {
    height: 100%;
    background-color: #f2f2f2;
}

.product-imgs img {
    width: 100%;
}

.inpage .mb80 {
    margin-bottom: 80px;
}