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

body{
    width: 100%;
    min-height: 100vh;
}
.header{
    height: 60px;
    width: 100%;
    background-color: #fff;
    color: #333;
    font-size: 18px;
    display: flex;
    align-items: center;
    /* padding-left: 40px; */
    font-style: italic;
    text-indent: 140px;
    letter-spacing: 10px;
    position: fixed;
    top: 0;
    box-shadow: 1px 2px #ddd;
    z-index: 999;
}
main{
    
}
.part-1{
    margin-top: 60px;
    width: 100%;
    height: 500px;
    background: url('./banner3.jpg') no-repeat center / cover;
    display: flex;
}
.intro{
    color: #333;
    width: 500px;
    line-height: 24px;
    margin: 0 auto;
    margin-top: 80px;
    /* margin-left: 80px; */
}
.part-2{
    width: 70%;
    padding: 80px 0;
    margin: 0 auto;
}
.egs{
    margin-top: 50px;
    display: flex;
    align-items: center;
    justify-content: space-around;
}
.eg-item{
    width: 300px;
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow:
  12.5px 12.5px 10px rgba(0, 0, 0, 0.035),
  100px 100px 80px rgba(0, 0, 0, 0.07)
;
}
.eg-item:hover{
    box-shadow:
  2.8px 2.8px 2.2px rgba(0, 0, 0, 0.02),
  6.7px 6.7px 5.3px rgba(0, 0, 0, 0.028),
  12.5px 12.5px 10px rgba(0, 0, 0, 0.035),
  22.3px 22.3px 17.9px rgba(0, 0, 0, 0.042),
  41.8px 41.8px 33.4px rgba(0, 0, 0, 0.05),
  100px 100px 80px rgba(0, 0, 0, 0.07)
;
}
.eg-item img {
    width: 100%;
}
.eg-item p {
    padding: 20px;
}
.part-3{
    background-color: #004ea1;
    color: #fff;
    overflow: hidden;
    padding-bottom: 20px;
}
.flex{
    display: flex;
    align-items: center;
    justify-content: space-around;
    margin-top: 60px;
    overflow: hidden;
}
footer{
    height: 100px;
    background-color: #ddd;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}
a{
    text-decoration: none;
    color: #fff;
}