* {
    margin: 0;
    padding: 0;
}
a {
    text-decoration: none;
}
html {
    height: 100%;
}
body {
    min-height: 100%;
    position: relative;
}
.header {
    display: flex;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    font-size: .3rem;
    color: #2ae1c1;
    padding: .1rem;
  }
  .header div:first-child{
    font-weight: bold;
    font-style: italic;
  }
  
  .header span{
    font-size: .2rem;
    cursor: pointer;
  }
  
  .header span:first-child {
    color: #21c0ea;
  }
  
  .header span:last-child {
    margin-left: 0.3rem;
    color: #333333;
  }
.banner {
    /* background: linear-gradient(-60deg,#21c0ea,#2ae1c1); */
    position: relative;
    background-image: url("../img/bannerBackground.png");
    object-fit: cover;
    height: 40%;
    width: 100%;
}
/* .waterline {
    position: absolute;
    background-image: url("../img/waterWave.png");
    background-size: cover;
    bottom: 0;
    object-fit: cover;
    width: 100%;
    height: 12%;
    z-index: 10;
} */
.appContent {
    display: flex;
    width: 100%;
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    padding: 5% 2% 0 0;
    justify-content: space-evenly;
    box-sizing: border-box;
}
.appContent img {
    width: 30%;
}
.banner-desc {
    display: flex;
    color: #4c3711;
    /* margin-left: 50%; */
    flex-direction: column;
    justify-content: center;
}
.banner-desc h1 {
    font-size: .5rem;
}
.appDesc {
    font-size: .2rem;
}
.appClass {
    font-size: .2rem;
    margin-top: 5%;
}
.download {
    display: block;
    width: 50%;
    font-size: .15rem;
    margin-top: 5%;
    padding: 2%;
    border-radius: 1rem;
    color: #4c3711;
    background-color: #fff;
    text-align: center;
    cursor: pointer;
}
.appInfo {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-bottom: .6rem;
}
.item {
    display: flex;
    margin: 5% 0;
    padding: 0 2% 0 6%;
    background-color: #fff;
    align-items: center;
}
.item img {
    width: 40%;
}
.function-desc {
    margin-left: 3%;
}
.function-desc h1 {
    font-size: .4rem;
    color: #333;
}
.function-desc p {
    font-size: .3rem;
    color: #333;
    margin-top: 5%;
}
.emphasize {
    font-weight: 400;
    font-size: .4rem;
    color: #15b9c8;
}
.copyright {
    position: absolute;
    display: flex;
    height: .5rem;
    width: 100%;
    line-height: .5rem;
    background-color: #2c2d33;
    text-align: center;
    justify-content: center;
    bottom: 0;
}
.copyright a {
    display: inline-block;
    font-size: .2rem;
    color: #fff;
}
.contact{
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 4%;
    font-size: .15rem;
    line-height: .3rem;
}

.contact-title{
    font-size: .2rem;
    margin-bottom: .2rem;
}

.copyright-img{
    width: .2rem;
    height: .2rem;
    margin: 0 .1rem;
    vertical-align: middle;
}