* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-weight: normal;
    font-family: "微软雅黑";
}
ul li{
    list-style: none;
}
a{
    color: #fff;
    text-decoration: none;
}
.overflow{
    overflow: hidden;
}
.float-left{
    float: left;
}
.float-right{
    float: right;
}
.text-center{
    text-align: center;
}
.color-fff{
    color: #fff;
}

/* 主内容区域 */
.content {
    width: 100%;
}
        
/* 每个内容区块 */
.section {
    scroll-margin-top: 20px; /* 防止被顶部固定内容遮挡 */
    height: 1080px;
}


/*第一部分*/
.section1{
    background: url("../images/bg/section1.jpg");
    background-size: 100% 100%;
    position: relative;
}
.sectionCon1{
    width: 100%;
    position: absolute;
    top: 0;
    left: 0
}
.newSectionCon1{
    width: 1300px;
    margin: 0 auto;
}
.nav{
    padding: 15px 0;
}
.nav .navLogo{
    margin-top: 15px;
}
.language{
    margin: 16px 0 0 18px;
}
.language img{
    cursor: pointer;
}
.language .en{
    margin-right: 10px;
}
/* 导航菜单 */
.nav-ul {
    display: flex;
    list-style: none;
    justify-content: center;
}

/* 导航项 */
.nav-li {
    position: relative;
    padding: 20px 17px;
}

/* 导航链接 */
.nav-link-a {
    text-decoration: none;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
    font-family: "华文细黑";
}

/* 横杠效果 - 初始状态 */
.nav-link-a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -16px;
    width: 0;
    height: 3px;
    background: linear-gradient(to right, #B4E0F1, #EBF7FB);
    transition: width 0.3s ease;
    opacity: 0;
}

/* 第一个导航项默认显示横杠 */
.nav-li:first-child .nav-link-a::after {
    width: 100%;
    opacity: 1;
}

/* 鼠标悬停时的效果 */
.nav-li:hover .nav-link-a::after {
    width: 100%;
    opacity: 1;
}

/* 确保其他项的横杠消失 */
.nav-ul:hover .nav-link-a::after {
    opacity: 0;
    width: 0;
}

.nav-ul:hover .nav-li:hover .nav-link-a::after {
    opacity: 1;
    width: 100%;
}

/* 鼠标悬停时文字颜色变化 */
/* .nav-li:hover .nav-link-a {
    color: #ff7e5f;
} */
.section1Brief{
    margin-top: 14%;
}
.section1Brief div{
    font-size: 20px;
    font-family: "华文细黑";
}
.color-C7E8F5{
    color: #C7E8F5;
    margin-top: 15px;
}
.mt-60{
    margin-top: 60px;
}
.down{
    width: 100%;
    text-align: center;
    position: absolute;
    bottom: 70px;
}
.scroll-indicator {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}


/*第二部分*/
.section2{
    background: url("../images/bg/section2.jpg");
    background-size: 100% 100%;
}
.sectionCon2{
    width: 1377px;
    margin: 0 auto;
    padding-top: 170px;
}
.section2Tit{
    font-size: 44px;
    font-weight: bold;
    background: linear-gradient(to bottom, #F5FBFD, #A1D9EE);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    letter-spacing: 10px;
    font-family: "华文细黑";
}
.section2Con{
    padding-top: 125px;
}
.section2Con ul li{
    width: 22%;
    height: 503px;
    margin-right: 55px;
    border: solid 1px #4D5F76;
    color: #D4D6D9;
    padding: 30px 32px 0 32px;
    background-color: rgb(7 17 38 / 65%);
    transition: transform 0.3s ease;
    cursor: pointer;
}
.section2Con ul li:last-child{
    margin-right: 0;
}
.section2Con ul li:hover {
    transform: translateY(-20px);
    border: solid 1px #fff;
}
.serviceImg{
    height: 163px;
}
.serviceTitle{
    font-size: 18px;
    margin-top: 15px;
    letter-spacing: 4px;
    font-weight: 400;
    line-height: 25px;
}
.serviceCon{
    font-size: 13px;
    margin-top: 22px;
    line-height: 22px;
}


/*第三部分*/
.section3{
    background: url("../images/bg/section3.jpg");
    background-size: 100% 100%;
    height: 2217px;
}
.section3Top{
    width: 1377px;
    margin: 0 auto;
    padding-top: 44px;
}
.section3Tit{
    font-size: 18px;
    letter-spacing: 2px;
}
.section3-E4F4FA{
    color: #E4F4FA;
    margin-top: 40px;
}
.color-D2ECF7{
    color: #D2ECF7;
    margin-top: 8px;
}
.color-BAE2F3{
    color: #BAE2F3;
    margin-top: 8px;
}

.map{
    position: relative;
    height: 800px;
}
.global{
    color: #fff;
    position: absolute;
}
.globalOne{
    top: 32%;
    left: 19%;
}
.globalName{
    font-size: 15px;
    margin-bottom: 7px;
}
.globalDesc{
    border: solid 1px #647FA1;
    font-size: 13px;
    width: 260px;
    padding: 15px;
    margin-left: 28px;
    background-color: rgb(2 15 39 / 51%);
    cursor: pointer;
}
.globalTwo{
    top: 49%;
    left: 41.3%;
}
.globalThree{
    top: 60%;
    left: 38.3%;
}
.globalThreeDesc{
    width: 288px;
}
.globalFour{
    top: 76%;
    left: 44.5%;
}
.globalFourDesc{
    width: 241px;
}
.globalFive{
    top: 43%;
    right: 16%;
}
.globalFiveDesc{
    width: 231px;
}

.sectionCon3-1{
    width: 1199px;
    margin: 0 auto;
    padding-top: 286px;
}
.aggregation{
    margin-top: 64px;
}
.aggregationName{
    font-size: 16px;
    margin-top: 15px;
    letter-spacing: 2px;
}
.color-EDF8FC{
    color: #EDF8FC;
}
.color-D3EDF7{
    color: #D3EDF7;
}
.color-B6E0F2{
    color: #B6E0F2;
}
.qian{
    position: absolute;
    right: 27%;
    /* animation: flyIn 2s ease-out forwards; */
}
/* @keyframes flyIn {
    0% {
      transform: translateX(-500px) rotate(-180deg);
      opacity: 0;
    }
    100% {
      transform: translateX(0) rotate(0);
      opacity: 1;
    }
} */

.aggregationBottom{
    width: 1273px;
    margin: 0 auto;
    margin-top: 214px;
}
.aggregationBot{
    width: 50%;
    position: relative;
    cursor: pointer;
}
.aggregationBotCon1{
    position: absolute;
    top: 64px;
    left: 286px;
}
.aggregationTitle{
    font-size: 18px;
}
.aggregationDesc1{
    width: 85%;
    font-size: 13px;
    margin-top: 15px;
    line-height: 20px;
}
.aggregationBotCon2{
    position: absolute;
    top: 64px;
    left: 319px;
}
.aggregationDesc2{
    width: 82%;
    font-size: 13px;
    margin-top: 15px;
    line-height: 24px;
}


/*第四部分*/
.section4{
    background: url("../images/bg/section4.jpg");
    background-size: 100% 100%;
    height: 500px;
}
.section4Con{
    width: 1200px;
    margin: 0 auto;
    padding-top: 83px;
}
.cooperateTop{
    display: flex;
    align-items: center;
}
.cooperateTop img{
    margin-right: 46px;
    margin-top: 40px;
}
.cooperateTop img:last-child{
    margin-right: 0;
}
.cooperateBot{
    margin: 0 auto;
    width: 80%;
}
.cooperateBot img{
    margin-right: 65px;
}


/*第五部分*/
.section5{
    background: url("../images/bg/section5.jpg");
    background-size: 100% 100%;
    height: 580px;
}
.image-carousel {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
    position: relative;
    gap: 20px;
    padding-top: 100px;
}

.image-container {
    transition: all 0.5s ease;
    text-align: center;
}

.image-container img {
    max-width: 100%;
    height: auto;
    cursor: pointer;
    transition: all 0.5s ease;
}

.image-container .description {
    transition: opacity 0.3s ease;
    color: #fff;
    font-size: 16px;
    margin-top: 10px;
}

.left, .right {
    width: 30%;
    opacity: 0.8;
}

.left .description, 
.right .description {
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.center {
    width: 37%;
    opacity: 1;
}

.center .description {
    opacity: 1;
    height: auto;
    line-height: 23px;
}

.left img, .right img {
    transform: scale(0.8);
}

.center img {
    transform: scale(1);
}


/*第六部分*/
.section6{
    background: url("../images/bg/section6.jpg");
    background-size: 100% 100%;
    height: 543px;
}
.contactTop{
    width: 1320px;
    margin: 0 auto;
    padding-top: 10px;
}
.contactTopCon{
    width: 434px;
    height: 341px;
    transition: transform 0.3s ease;
    cursor: pointer;
    color: #fff;
}
.contactTopCon:hover {
    transform: translateY(-20px);
}
.contactTopCon1{
    background: url("../images/bg/contact1.png");
    background-size: 100% 100%;
}
.contactTopCon2{
    background: url("../images/bg/contact2.png");
    background-size: 100% 100%;
}
.contactTopCon3{
    background: url("../images/bg/contact3.png");
    background-size: 100% 100%;
}
.contactTopCon img{
    margin-top: 84px;
}
.contactName{
    margin-top: 50px;
    font-size: 17px;
    font-family: "华文细黑";
}
.contactTel{
    margin-top: 20px;
    font-size: 13px;
    font-family: "华文细黑";
}
.bottomNav{
    width: 1447px;
    margin: 0 auto;
    border-bottom: solid 1px #1D2940;
    padding-bottom: 40px;
    margin-top: 47px;
}
.bottomNav img{
    width: 200px;
}
.bottomNav ul li{
    color: #fff;
    font-weight: 600;
    font-size: 16px;
    margin-right: 55px;
    cursor: pointer;
}
.bottomNav ul li a{
    font-family: "华文细黑";
}
.reserved{
    text-align: center;
    color: #888E93;
    font-size: 15px;
    margin-top: 20px;
}





/* 右侧悬浮导航 */
.nav-container {
    position: fixed;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    background-color: rgb(0 16 50 / 33%);
    border: solid 1px #5C728E;
    border-top-left-radius: 30px;
    border-top-right-radius: 30px;
    border-bottom-left-radius: 30px;
    border-bottom-right-radius: 30px;
}

.nav-menu {
    padding: 2px 2px;
}

.nav-item {
    margin-bottom: 24px;
}
.nav-item:last-child{
    margin-bottom: 0;
}

.nav-link {
    display: block;
    font-size: 14px;
    width: 36px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    color: #fff;
    text-decoration: none;
    border-radius: 50%;
    transition: all 0.3sease;
}

.nav-link:hover {
    color: #3498db;
    background: #f1f5f9;
}

.nav-link.active {
    color: #003396;
    background: linear-gradient(to bottom, #F9FDFE, #BAE2F2);
}


/* 响应式调整 */
@media (max-width: 1200px) {
    .content {
        width: 90%;
    }
}

@media (max-width: 768px) {
    .nav-container {
        display: none;
    }
    
    .content {
        width: 95%;
    }
}