.changcheng{
    background-image: url(/themes/llumar/img2023/changcheng/bg.jpg);
    background-size: 100%;
}

.banner{
    width: 100%;
}

.banner img{
    width: 100%;
}

.section1,
.section2{
    width:76%;
    margin:auto;
    padding:100px 0;
    display: flex;
}

.section1 .text{
    width: 58%;
    font-size: 14px;
}

.section1 .text .title{
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}

.section1 .text .subtitle{
    font-weight: bold;
    margin-bottom: 20px;
}

.section1 .text .detail{
    line-height: 30px;
}

.section1 .pic{
    width: 42%;
    display: flex;
    align-items: flex-end;
}

.section1 .pic img{
    width: 100%;
}

.section2{
    text-align: center;
    font-weight: bold;
    font-size:14px;
    padding-top: 0;
}

.section2>div{
    flex:1;
}

.section2 img{
    display: block;
    width: 45px;
    margin:0 auto 15px auto;
    border-radius: 50%;
}

.section3{
    width:76%;
    margin:auto;
}

.section3 .feature{
    display: flex;
    padding-bottom:25px;
}

.section3 .feature img{
    width: 50%;
    border-radius: 20px;
    order:2;
}

.section3 .feature .text{
    width: 50%;
    display: flex;
    order:1;
}

.section3 .right img{
    order:1;
}

.section3 .right .text{
    order:2;
}

.section3 .feature .text .icon{
    width:40%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.section3 .feature .text .desp{
    width:60%;
    display: flex;
    align-items: center;
}

.section3 .feature .text .desp .feature-title{
    font-size:20px;
    font-weight: bold;
    margin-bottom:10px;
}

.section3 .feature .text .icon img{
    width:50px;
    border-radius: 50%;
}

.section3 .feature .text .desp .feature-desp{
    padding-right:20%;
    font-size:14px;
}

.section4{
    width:76%;
    margin:auto;
    padding:100px 0;
}

.section4 .section-title{
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 65px;
}

.section4 .product{
    display: flex;
}

.section4 .product-item{
    flex:1;
}

.product-type {
    border:2px solid #7ed0ca;
    border-radius: 20px;
    padding:5px 10px;
    width: fit-content;
    font-size: 18px;
    font-weight: bold;
    margin-bottom:20px;
}

.product-desp{
    font-size:16px;
    line-height: 2;
    margin-bottom: 60px;
}

.product-model{
    display: flex;
}

.product-model .lch{
    width: 40%;
}

.product-model .lch .lch-title{
    font-size:48px;
    margin-bottom: 10px;
}

.product-model .lch .material{
    font-size:18px;
    margin-bottom: 10px;
}

.product-model .lch .warranty img{
    height:24px;
}

.section5{
    width: 100%;
}

.section5 img{
    width: 100%;
}

@media screen and (min-width: 1709px) {
    .section1,.section2,.section3,.section4 {
        zoom: 1.5;
    }
}

@media screen and (max-width: 1708px) {
    .section1,.section2 {
        zoom: 1.35;
    }
}

@media screen and (max-width: 1440px) {
    .section1,.section2 {
        zoom: 1.125;
    }
}

@media screen and (max-width: 1366px) {
    .section1,.section2 {
        zoom: 1.06;
    }
}

@media screen and (max-width: 1024px) {
    .part4,.signal{
        zoom: .66;
    }
}

@media screen and (max-width: 1024px) {
    .part4,.signal{
        zoom: .55;
    }
}

@media screen and (max-width: 960px) {
    .part4,.signal{
        zoom: .53;
    }
}


/* Òƶ¯¶Ë */
@media screen and (max-width: 799px) {
    .pc{
        display: none;
    }

    .section1{
        display: block;
        width: 100%;
        padding:50px 0;
    }

    .section1 .text{
        width: calc(100% - 100px);
        padding:0 50px;
        zoom:0.65;
        margin-bottom:50px;
    }

    .section3{
        width: 100%;
    }

    .section1 .pic{
        width: 100%;
        order:2;
    }

    .section3 .feature{
        padding-bottom: 40px;
    }

    .section3 .feature .text {
        order:1;
        width: 100%;
        margin-bottom: 40px;
    }

    .section3 .feature img {
        width: 100%;
        border-radius: 0;
    }

    .section3 .feature .text .desp .feature-title {
        font-size: 16px;
    }

    .section3 .feature .text .desp .feature-desp {
        font-size: 12px;
    }

    .section3 .feature {
        display: block;
    }

    .section4{
        zoom: 0.65;
        padding: 30px 0;
    }

    .section4 .section-title {
        text-align: center;
        margin-bottom: 35px;
    }

    .section4 .product{
        display: block;
    }

    .product-type{
        margin: 0 auto 35px auto;
    }

    .product-desp{
        text-align: center;
    }

    .product-item{
        margin-bottom: 40px;
    }

    .product-model .lch:first-child{
        width: 60%;
    }
}