* {
    margin: 0;
    padding: 0;
}

ul {
    list-style: none;
}

a {
    color: #333;
    text-decoration: none;
}

body {
    background: #fff;
    min-width: 1200px;

}

.header {
    height: 80px;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid #ddd;
}

.nav-box {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    height: 40px;
    padding-top: 20px;
    align-items: center;
    justify-content: space-between;
    font-size: 30px;
    color: #333;
}

.nav-box .nav {
    display: flex;
    font-size: 16px;
    color: #555;
}

.nav-box .nav li {
    padding-left: 40px;
}
.nav-box .nav a.on {
    color: #000;
    padding-bottom: 10px;
    border-bottom: 2px solid #f30606;
}
.nav-box .nav a:hover {
    color: #000;
    padding-bottom: 10px;
    border-bottom: 2px solid #333;
}
.saying{
    height: 60px;
    line-height: 60px;
    margin: 20px auto;
    text-align: center ;
    font-size:30px;
    font-style:oblique;
    color:burlywood;
   
}

.introduction{
    width: 1200px;
    margin:0 auto;
    padding:20px 0;
    
}
.introduction-title{
    line-height: 50px;
    font-size:28px;
    font-weight: 600;
    padding-top: 20px;
    padding-bottom: 30px;
    color:#555;
}
.introduction-main{
    display:flex;
    margin-bottom: 50px;
}
.introduction-main .left{
    margin-left: 20px;
}
.introduction .left img{
    border-radius:50%;
    width: 220px;
}
.introduction-main .right{
    line-height:50px;
    margin-left: 80px;
    margin-right:180px;
    font-size:18px;
    color: #555;
}

.banner {
    background: url(./images/屏幕截图\ 2024-11-24\ 141750.png) no-repeat center center;
    width: 1500px;
    margin: 0 auto;
    height: 600px;
    text-align: center;
    line-height: 600px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    text-shadow: 0 0 40px rgba(0,0,0,0.3);
}
.banner-2 {
    background: url(./images/屏幕截图\ 2024-09-25\ 223425.png) no-repeat center center ;
    width: 1500px;
    margin: 0 auto;
    height: 420px;
    text-align: center;
    line-height: 420px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    text-shadow: 0 0 40px rgba(0,0,0,0.3);
}
.banner-3 {
    background: url(./images/屏幕截图\ 2024-11-24\ 224820.png) no-repeat center center ;
    width: 1500px;
    margin: 0 auto;
    height: 420px;
    text-align: center;
    line-height: 420px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    text-shadow: 0 0 40px rgba(0,0,0,0.3);
}
.banner-4 {
    background: url(./images/屏幕截图\ 2024-11-28\ 163333.png) no-repeat center center ;
    width: 1500px;
    margin: 0 auto;
    height: 420px;
    text-align: center;
    line-height: 420px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    text-shadow: 0 0 40px rgba(0,0,0,0.3);
}
.banner-5 {
    background: url(./images/屏幕截图\ 2024-09-25\ 223940.png) no-repeat center center ;
    width: 1500px;
    margin: 0 auto;
    height: 420px;
    text-align: center;
    line-height: 420px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    text-shadow: 0 0 40px rgba(0,0,0,0.3);
}
.myform{
    margin-top: 50px;
}
.input-box{
    width: 1200px;
    margin:0 auto;
    display: flex;
    height: 50px;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 50px;
}
.input{
    flex: 1;
    height: 40px;
    text-indent: 10px;
    border: 1px solid #ddd;
    font-size: 20px;
    margin: 0 20px;
}
.foot-box{
    width: 100%;
    height: 100px;
    line-height: 100px;
    text-align: center;
    font-size: 13px;
    background: #000;
    color: #fff;
    margin-top: 120px;
}
.msg{
    flex: 1;
    margin: 0 20px;
    border: 1px solid #ddd;
    text-indent: 10px;
    line-height: 24px;
    padding: 10px 0;
    font-size: 20px;
    min-height: 110px;
}
.button{
    margin: 20px 270px;
    width: 150px;
    height: 42px;
    line-height: 42px;
    border:none;
    color: #fff;
    text-align: center;
    background: rgb(12, 134, 222);
    cursor: pointer;
    font-size: 20px;
}
.button:hover{
    opacity: 0.8;
}
.main-box{
    width:1000px;
    margin: 10px auto;
}
.flex-box{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-around;
    margin-bottom: 0px;
    margin-top: 30px;
}
.block{
    width: 300px;
    height: 300px;
    position: relative;
}
.describe{
    position: absolute;
    z-index: 3;
    opacity: 0;
    top: 0;
    left: 0;
    width: 100%;
    bottom: 0;
    cursor: pointer;
    transition: opacity 0.5s ease-in;
    color: #fff;
    font-size: 18px;
    font-weight:bold;
    text-align: center;
    line-height: 300px;
}
.block :hover{
    opacity: 1;
}
.block :hover~img{
    transform: scale(1.1);
}
.block .picture{
    transition: all 0.3s ease-in;
}