* {
    margin: 0;
    padding: 0;
}

ul {
    list-style: none;
}

@media screen and (min-width: 768px) {
    #app {
        width: 750px;
    }
}

@media screen and (min-width: 992px) {
    #app {
        width: 970px;
    }
}

@media screen and (min-width:1200px) {
    #app {
        width:100%;
      
    }
    #app > #header {
        height: 96px;
        width: 1200px;
        margin: 0 auto;
    }
     #app > #header > img {
        height: 96px;
    }

    .about {
        width: 1200px;
        margin: 0 auto;
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 10px;
    }
    .about div:nth-of-type(1){
        width: 70%;
    }
 
    .about div:nth-of-type(2) {
        width: 30%;
        display: flex;
        justify-content: end;
        align-items: center;
    }
    .video video {
        width: 100% !important;
    }
    .product{
        width: 1200px;
        margin: 10px auto;
    }
    .pro{
        width: 100%;
        display: flex;
        justify-content: space-between;
    }
    .lis{
        width: 260px;
        margin-right: 10px;
        box-shadow: 0 0 10px rgba(0,0,0, .3);
        margin-top: 20px;
        border-radius: 5px;
    }
    .lis:last-of-type{
        margin-right: 0 !important;
    }
    .lis > img {
        width: 260px;
        height: 300px;
        border-radius: 5px 5px 0 0;
    }
    .lis > div {
        background: #ccc;
        border-radius: 0 0 5px 5px;
    }
    .product > div {
        text-align: center;
        margin: 20px 0;

    }
    .contract {
    margin-top: 30px;
    width: auto;
    height: 369px;
    background: #5cc9a7;
    /* opacity: 0.3; */
    display: flex;
    align-items: center;
}
.contract > div {
    width: 1200px;
    margin: 0 auto;
    height: 200px;
    /* background-color: red; */
}
.contract > div > h1 {
    text-align: center;
}
.contract > div > div{
    width: 40px;
    height: 5px ;
    background-color: yellow;
    margin: 10px  auto;
}
.contract > div > p {
    width: 200px;
    margin: 0 auto;
    text-align: center;
    color: #fff;
}
.icon {
    z-index: 10;
    width: 1200px;
    height: 40px;
    margin: 20px auto;
    /* border: 1px solid yellow; */
    display: flex;
    align-items: center;
    justify-content: center;
}
.icon > li {
    width: 40px;
    height: 40px;
    /* background-color: #000; */
    margin-right: 10px;
    cursor: pointer;
}
    .footer {
        background-color: #fff !important;
        width: 100%;
        height: auto;
    }
    .footer > ul {
        display: flex;
        width: 1200px;
        justify-content: space-between;
        align-items: center;
        margin: 0 auto;
    }
    .footer > ul > li {
        margin-top: 100px;
        margin-bottom: 100px;
    }
    .social {
        width: 1200px;
        height: 40px;
        /* background-color: red; */
        display: flex;
        margin: 0 auto;
        align-items: center;
        justify-content: center;
    }
    .social > i , .social > span > i {
        font-size: 20px;
        margin-right: 20px;
        color: red;
    }
    .social > span {
        margin-right: 20px;
        margin-bottom: 20px;
    }

}
/* 移动端 (平板以下) */
@media screen and (max-width: 767px) {
    #app {
        width: 100% !important;
        max-width: 100%;
        box-sizing: border-box;
       
    }
    #app > #header {
        height: 80px;
        margin: 0 auto;
        padding: 0 30px 0 0;
    }
    #app > #header > img{
       height: 80px;
    }
    .swiper {
        width: 100%;
    }
    .swiper-slide{
        width: 100%;
    }
    .about {
        padding: 0px 30px;

    }
  
    .about video {
        width: 300px;
        margin-top: 30px;
    }

    .product{
        padding: 10px 30px;
    }
    .pro{
        margin: 10px auto;
    }
    .lis{
        margin: 10px auto;
    }
    .lis img{
        height: 320px;
    }
    .lis div {
        background-color: #ccc;
    }

    .contract{
        width: 100%;
        background-color: #5cc9a7;
        height: 369px;
        display: flex;
        justify-content: center;
        align-items: center;
    }
   
    .contract h1{
        width: 60%;
        text-align: center;
        color: #fff;
        margin: 0 auto;
    }
    .contract h1 span{
        color: #e00070;
    }

    .contract > div > div {
        margin: 10px auto;
        width: 50px;
        height: 2px;
        background-color: yellow;
    }
    .contract > div > p {
        text-align: center;
        height: 60px;
        line-height: 60px;
        width: 100%;
    }
    .icon {
        display: flex;
        justify-content: center;
        align-items: center;
        height: 40px;
    }
    .icon > li {
        width: 40px;
        margin-right: 20px;
    }
   .footer ul {
    width: 100%;
    min-height: 45px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); /* 自动适应列数 */
    gap: 15px;
    align-items: center;
    padding: 15px;
    margin: 0;
    list-style: none;
}

    .footer ul li {
        text-align: center;
        padding: 8px 10px;
        background: rgba(255,255,255,0.1);
        border-radius: 4px;
        transition: all 0.3s ease;
    }

    .footer ul li:hover {
        background: rgba(255,255,255,0.2);
        transform: translateY(-2px);
    }
    .social {
        width: 100%;
        height: 40px;
        /* background-color: red; */
        display: flex;
        margin: 0 auto;
        align-items: center;
        justify-content: center;
    }
     .social > i , .social > span > i {
        font-size: 20px;
        margin-right: 20px;
        color: red;
    }
    .social > span {
        margin-right: 20px;
        margin-bottom: 20px;
    }
   .mobile {
    display: grid !important;
    margin-top: 20px;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)) !important;
    gap: 15px;
    width: 100%;
    padding-bottom: 10px;
    padding-left: 60px;
}



}

#app > #header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.swiper{
    overflow: hidden;
}
.swiper-wrapper {
    display: flex;
    justify-content: start;
    align-items: center;
}
.intro{
    margin-top: 10px;
    font-family:  "Anton", sans-serif;
    font-size: 16px;
    line-height: 1.8;
    text-align: justify;
}
.other{
    color: #5cc9a7
}

.lis > div {
    text-align: center;
    height: 45px;
    text-align: center;
    line-height: 45px;
}
.icon>li:first-child{
    background-color:#0077b5;
    color: #fff;
    text-align: center;
    line-height: 40px;
    font-size: 20px;
}
.icon>li:nth-of-type(2){
    background-color: #cd211f;
    color: #fff;
    text-align: center;
    line-height: 40px;
}
.icon>li:nth-of-type(3){
    background-color: #3c5998;
    color: #fff;
    text-align: center;
    line-height: 40px;
}
.icon>li:nth-of-type(4){
    background-color: #fe2906;
    color: #fff;
    text-align: center;
    line-height: 40px;
}
.icon>li:last-child{
    margin-right: 0 !important;
     background-color: green;
    color: #fff;
    text-align: center;
    line-height: 40px;
}