*{
    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 {
    width: 100%;
}

.culture {
    display: flex;
    width: 100%;
    padding: 3.6rem 7rem;
}
.culture .text-box {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.culture .text-box .title {
    font-size: 1.2rem;
    font-weight: 500;
    padding-bottom: 0.5rem;
}
.culture .text-box .content {
    font-size: 0.6rem;
    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: 1.4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.culture .link .arrow {
    height: 100%;
}
.culture .link .txt {
    font-size: 0.7rem;
}

.product-c {
    width: 100%;
    padding: 2.6rem 6.2rem;
    background: #efefef;
}
.product-b {
    width: 100%;
    padding: 2.6rem 6.2rem;
    background: #efefef;
}
.product-box {
    display: flex;
    width: 100%;
    padding: 2.6rem 0 0;
    justify-content: space-around;
    align-items: center;
    font-size: 0.5rem;
}
.product-box li {
    padding: 0 0.6rem;
}
.product-box .img {
    width: 8rem;
    height: 8rem;
}
.product-box .txt {
    text-align: center;
    padding: 1rem 0 0;
    position: relative;
}
.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: 9rem;
    margin: 0 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 {
        padding: 1.3rem 2.1rem;
    }
    .product-b {
        padding: 1.3rem 2.1rem;
    }
    .product-box {
        padding: 1.3rem 0;
    }
    .product-box .img {
        width: 78px;
        height: 78px;
    }
    .product-ai {
        padding: 1.3rem 2.1rem;
    }
    .title-box .logo-product {
        width: 54px;
    }
    .product-ai .content-box {
        margin-top: 0.8rem;
    }
}
@media screen and (max-width: 375px) {
    .product-box .img {
        width: 70px;
        height: 70px;
    }
}