* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    color: #b3d3d5;
}

ul,
li {
    padding: 0;
    margin: 0;
    list-style: none;
}

img {
    max-width: 100%;
}

a {
    text-decoration: none;
}

.d-flex {
    display: flex;
    flex-wrap: wrap;
}

.j-s-b {
    justify-content: space-between;
}

.al-c {
    align-items: center;
}

header {
    width: 100%;
    max-width: 1700px;
    height: 90px;
    line-height: 90px;
    position: fixed;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 99;
}

.head .left {
    width: 94%;
    height: 90px;
    background-color: #fff;
    border-radius: 45px;
    padding: 0 40px;
}

.head .left .logo {
    width: 300px;
}

.head .left .logo img {
    width: 100%;
    vertical-align: middle;
}

.head .left .nav {
    width: 45%;
}

.head .left .nav ul li a {
    color: #333;
}

.head .left .nav ul li a:hover {
    color: #266B67;
}

.head .right {
    width: 50px;
    height: 50px;
    background-color: #fff;
    border-radius: 50px;
    cursor: pointer;
    text-align: center;
    line-height: 50px;
    color: #266B67;
    font-weight: 700;
    font-size: 18px;
}

.banner1 {
    width: 100%;
    height: auto;
    overflow: hidden;
}

.banner1 img {
    width: 100%;
}

.content {
    width: 100%;
    background: url(../image/bg.png) no-repeat;
    background-size: cover;
    padding-top: 100px;
    overflow: hidden;
    margin-top: -5px;
}

.content .cont {
    font-size: 22px;
    line-height: 40px;
}

.box1 .left {
    width: 37%;
    padding-left: 90px;
    overflow: hidden;
}

.box1 .left .cont {
    width: 100%;
    height: 500px;
    overflow: auto;
    margin-top: 50px;
    scrollbar-width: thin;
    /* 滚动条宽度 */
    scrollbar-color: #383838 #2c7372;
    /* 滑块颜色和轨道颜色 */
}

.box1 .right {
    width: 60%;
}

.box1 .right img {
    width: 100%;
}

.title {
    background-image: linear-gradient(to bottom, #ffffff 0%, #a7e1eb 100%);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    font-size: 50px;
    font-weight: 500;
}

.box2 {
    padding: 100px;
}

.box2 .left {
    width: 35%;
}

.box2 .right {
    width: 50%;
}

.box2 h1 {
    position: relative;
    text-align: center;
    margin-bottom: 150px;
}

.box2 h1 img {
    width: 20%;
    position: absolute;
    top: 0px;
    left: 230px;
    z-index: -1;
}

.box3,
.box4,
.box5 {
    padding: 100px;
}

.box3 h1,
.box4 h1 {
    margin-bottom: 30px;
}

.image-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.image-item {
    width: calc(33.33% - 10px);
    box-sizing: border-box;
}

.image-item img {
    width: 100%;
    height: auto;
}

.load-more {
    width: 100%;
    text-align: center;
    margin-top: 20px;
}

.load-more button {
    padding: 6px 20px;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
}

.box4 ul {
    gap: 30px
}

.box4 ul li {
    width: calc(33.33% - 30px);
    box-sizing: border-box;
}

.box4 ul li:nth-child(3n) {
    margin-right: 0;
}

.box4 ul li video {
    width: 100%;
}

.box5 .left {
    width: 50%;
    color: #fff;
}

.box5 .left h4 {
    margin-bottom: 10px;
}

.box5 .left p {
    margin-bottom: 5px;
}

.box5 .left .h4 {
    margin-top: 30px;
}

.box5 .right {
    width: 50%;
}

/* 留言 */
.message {
    width: 100%;
}

.message .form {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.message .col50 {
    width: 48%;
}

.message .col100 {
    width: 100%;
    margin-top: 20px;
}

.message .form input {
    width: 100%;
    height: 40px;
    border: 1px solid #fff;
    padding: 0 10px;
    border-radius: 10px;
    outline: none;
}

.message .form textarea {
    width: 100%;
    height: 100px;
    border: 1px solid #fff;
    padding: 10px;
    border-radius: 10px;
    outline: none;
}

textarea::-webkit-input-placeholder,
input::-webkit-input-placeholder {
    font-size: 16px;
}

.message .form button {
    width: 100%;
    height: 50px;
    text-align: center;
    border-radius: 10px;
    background-color: #266B67;
    color: #fff;
    font-size: 20px;
    border: none;
    cursor: pointer;
}

.message .form button:hover {
    background-color: #1e4442;
}

footer {
    background-color: #333;
    padding: 50px 0;
    text-align: center;
    color: #fff;
}

@media screen and (max-width:1600px) {
    header {
        width: 90%;
        height: 80px;
        line-height: 80px;
    }
    .head .left{
        height: 80px;
    }

    .box1 .left {
        width: 40%;
    }

    .box1 .left .cont {
        height: 400px;
    }

    .box1 .right {
        width: 55%;
    }

    .box2 h1 img {
        left: 183px;
    }
}

@media screen and (max-width:1500px) {
    .box1 .left {
        width: 40%;
    }

    .box1 .left .cont {
        height: 300px;
    }

    .box2 h1 img {
        left: 160px;
    }

}


@media screen and (max-width:1400px) {
    .banner1{
        height: auto;
    }
    .title {
        font-size: 40px;
    }

    .content .cont {
        font-size: 18px;
        line-height: 30px;
    }

    .box1 .left {
        width: 40%;
    }

    .box1 .left .cont {
        height: 300px;
    }

}


@media screen and (max-width:1300px) {
    .head .left .logo {
        width: 230px;
    }

    header {
        width: 90%;
        height: 70px;
        line-height: 70px;
    }
    .head .left{
        height: 70px;
    }
    .box2 h1 img {
        left: 140px;
    }
}

@media screen and (max-width:1200px) {
    .box2 h1 {
        margin-bottom: 100px;
    }
}

@media screen and (max-width:1024px) {
    .title{
        font-size: 30px;
    }

    .box1 .left .cont {
        margin-top: 15px;
    }

    .content .cont {
        font-size: 16px;
        line-height: 25px;
    }

    .box2 h1 img {
        left: 110px;
    }
    .box2 h1 {
        margin-bottom: 68px;
    }
    header {
        height: 60px;
        line-height: 60px;
    }
    .head .left {
        width: 90%;
        height: 60px;
    }
    .head .left .logo {
        width: 200px;
    }
    .head .left .nav {
        width: 55%;
    }

}

@media screen and (max-width:768px) {
    
    header {
        position: absolute;
        width: 95%;
        height: 50px;
        line-height: 50px;
        top: 0;
    }
    .head .left {
        width: 80%;
        height: 50px;
        padding: 0 12px;
    }
    .head .left .logo {
        width: 120px;
    }
    .head .left .nav {
        display: none;
    }

    .banner1 {
        padding-top: 50px;
    }
    .content {
        padding: 50px 10px 10px;

    }

    .box1 .left,
    .box2 .left,
    .box5 .left,
    .box1 .right,
    .box2 .right,
    .box5 .right{
        width: 100%;
        padding: 0;
    }

    .box1 .left .cont {
        height: auto;
        margin-bottom: 20px;
    }

    .box2,
    .box3,
    .box4,
    .box5{
        padding: 50px 0;
    }
    .box2 .left{
        margin-bottom: 30px;
    }
    .box2 h1 img {
        left: 85px;
    }
    .mb-box2{
        flex-direction: column-reverse;
    }

    .image-item {
        width: calc(50% - 10px);
    }

    .box4 ul li {
        width: 100%;
    }
    .box5 .left{
        margin-bottom: 20px;
    }
    .message .form input{
        height: 35px;
        border-radius: 5px;
    }
    .message .form textarea{
        border-radius: 5px;
    }
    footer {
        padding: 20px 0;
        font-size: 14px;
    }
}