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

body,html{
    width: 100%;
    height: 100%;
    font-family: PingFang SC,Microsoft YaHei,Georgia,Serif;
}
ul {
    list-style-type: none;
}

.landscape .img {
    display: block;
    width: 100%;
}

.culture {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 6rem 7rem;
}
.culture .text-box {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.culture .text-box .title {
    font-size: 1.5rem;
    font-weight: 500;
    padding-bottom: 2.4rem;
}
.culture .text-box .content {
    font-size: 1rem;
    line-height: 1.8rem;
    font-weight: 300;
}
.culture .logo-box {
    flex: 1;
    margin-left: 2.8rem;
}
.culture .logo {
    width: 100%;
}
@media screen and (orientation: portrait) {
    .culture {
        padding: 1.8rem 2rem;
    }
    .culture .logo-box {
        margin-left: 1.5rem;
    }
}
.culture .link {
    height: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.culture .link .arrow {
    height: 100%;
}
.culture .link .txt {
    font-size: 1rem;
}

.product-c {
    width: 100%;
    padding: 2.6rem 6.2rem 5rem;
    background: #efefef;
}
.product-b {
    width: 100%;
    padding: 2.6rem 6.2rem 5rem;
    background: #efefef;
}
.product-box {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    padding: 2.6rem 0 0;
    justify-content: space-between;
    align-items: center;
    font-size: 0.83rem;
}
.product-box .item {
    width: 25%;
    padding: 0 12px;
}
.product-box .img {
    width: 100%;
}
.product-box .txt {
    position: relative;
    padding: 1rem 0 0;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
}
.product-box .txt::before {
    content: "";
    position: absolute;
    width: 1rem;
    height: 1px;
    top: 0.2rem;
    left: 50%;
    transform: translateX(-50%);
    background: #000;
}

.product-ai {
    width: 100%;
    padding: 2.6rem 4.2rem;
}
.product-ai .content-box {
    display: flex;
    width: 100%;
    margin-top: 1.6rem;
}
.title-box {
    width: 100%;
}
.title-box .logo-product {
    width: 14.5rem;
    margin: 1rem auto;
    display: block;
}
.title-box .txt {
    font-size: 0.6rem;
    text-align: center;
    margin-top: 1rem;
}
.product-ai .content-box .item {
    flex: 1;
    padding: 0 1rem;
}
.product-ai .content-box .item .logo {
    width: 100%;
}
.product-ai .content-box .item .name {
    font-size: 0.6rem;
    text-align: center;
    margin-top: 1.5rem;
    position: relative;
}
.product-ai .content-box .item .name::before {
    content: "";
    position: absolute;
    width: 1rem;
    height: 1px;
    top: -1rem;
    left: 50%;
    transform: translateX(-50%);
    background: #000;
}

@media screen and (max-width: 640px) {
.product-c, .product-b {
    padding: 2.0rem 2.6rem;
}
}
@media screen and (max-width: 480px) {
.product-box .item {
    width: 50%;
    padding: 0 8px;
}
.product-box .item:nth-child(n+3) {
    margin-top: 16px;
}
}
@media screen and (max-width: 375px) {
.product-c, .product-b {
    padding: 1.0rem 1.0rem;
}
}
@media screen and (min-width: 960px) {

}
@media screen and (min-width: 1281px) {
.culture {
    padding: 6rem 17rem;
}
.product-c, .product-b {
    padding: 2.6rem 16.2rem 5rem;
}
.product-box .item {
    padding: 0 20px;
}
.product-box .item {
    margin: 0 !important;
}
}