*{
    transition: .3s;
}
.sp-base-box{
    max-width: 1600px;
	margin: auto;
    padding: 0 18px;
}
.sp-gas-boiler-banner{
    width: 100%;
}
.sp-gas-boiler-banner img{
    width: 100%;
}
.sp-gas-boiler-banner .banner-sm{
    display: none;
}


.sp-product-ls{
    margin-top: 120px;
}

.sp-product-ls h1{
    text-align: center;
    font-size: 48px;
    font-weight: bold;
    color: #022453;
}

.sp-product-ls .product-tab{
    margin-top: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.sp-product-ls .product-tab span{
    width: 300px;
    height: 80px;
    border-radius: 40px;
    border: 1px solid #333;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    cursor: pointer;
    margin: 0 24px;
}
.sp-product-ls .product-tab span.show{
    border: 1px solid #006CFF;
    color: #006CFF;
    font-weight: bold;
}

.sp-product-ls .product-ls{
    margin-top: 48px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-column-gap: 24px;
    grid-row-gap: 24px;
}
.sp-product-ls .product-ls .product-item{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: #F4F4F4;
    border-radius: 12px;
    color: #000000;
    padding: 24px;
}
.sp-product-ls .product-ls .product-item img{
    width: 50%;
}
.sp-product-ls .product-ls .product-item h3{
    font-size: 24px;
    line-height: 1.5;
    font-weight: 400;
    text-align: center;
    margin: 24px 0;
}
.sp-product-ls .product-ls .product-item p{
    font-size: 16px;
    color: #666;
    margin: 4px 0;
}

.sp-product-ls .product-ls .product-item span{
    display: block;
    margin-top: 24px;
    width: 100%;
    height: 46px;
    line-height: 46px;
    border-radius: 23px;
    border: 1px solid #006CFF;
    color: #006CFF;
    text-align: center;
}

.sp-product-ls .product-ls .product-item:hover span{
    background-color: #006CFF;
    color: #fff;
}

.sp-product-ls .product-ls { display: none; }
.sp-product-ls .product-ls.active { display: grid; }
.sp-why-boiler{
    margin-top: 120px;
    padding: 80px 0;
    background: url('../img/why-us.jpg') no-repeat top center;
    background-size: cover;
}

.sp-why-boiler h2{
    font-size: 48px;
    margin-bottom: 60px;
}

.sp-why-boiler .why-item{
    margin-bottom: 48px;
}
.sp-why-boiler .why-item div{
    margin-bottom: 24px;
    display: flex;
    align-items: flex-end;
}
.sp-why-boiler .why-item div p{
    font-size: 24px;
    font-weight: bold;
    color: #000000;
}
.sp-why-boiler .why-item div span{
    display: block;
    margin-left: 24px;
    font-size: 16px;
    color: #000000;
    opacity: 0.86;
    text-shadow: 0px 4px 4px rgb(255, 203, 24);
}

.sp-why-boiler .why-btn{
    width: 500px;
    height: 60px;
    background: linear-gradient(270deg, #D2E5FF, #006CFF);
    box-shadow: 3px 3px 24px 0px rgba(35,126,250,0.43);
    border-radius: 30px;
    font-size: 24px;
    line-height: 1.5;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.26);
    font-weight: bold;
    color: #FFFFFF;
    display: flex;
    justify-content: center;
    align-items: center;
}

.sp-industry{
    margin-top: 120px;
}
.sp-industry h2{
    text-align: center;
    font-size: 48px;
    margin-bottom: 60px;
    color: #022453;
}
.sp-industry .industry-ls{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-column-gap: 24px;
    grid-row-gap: 24px;
}
.sp-industry .industry-ls .industry-item{
    position: relative;
    padding-bottom: 50px;
}
.sp-industry .industry-ls .industry-item img{
    width: 100%;
    display: block;
}

.sp-industry .industry-ls .industry-item .industry-text{
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    width: calc(100% - 48px);
    margin: auto;
    background-color: #022453;
    color: #fff;
    padding: 24px;
    box-sizing: border-box;
    border-radius: 12px;
}
.sp-industry .industry-ls .industry-item .industry-text .text{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.sp-industry .industry-ls .industry-item .industry-text .text img{
    width: 36px;
    display: block;
    margin-left: 18px;
}
.sp-industry .industry-ls .industry-item .industry-text h3{
    margin-bottom: 12px;
}
.sp-industry .industry-ls .industry-item:nth-child(2n) .industry-text{
    background-color: #DDA800;
}

.sp-industry .industry-btn{
    width: 100%;
    max-width: 800px;
    height: 80px;
    background: linear-gradient(270deg, #D2E5FF, #006CFF);
    box-shadow: 3px 3px 24px 0px rgba(35,126,250,0.43);
    border-radius: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 24px;
    line-height: 1.5;
    color: #FFFFFF;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.26);
    margin: auto;
    margin-top: 80px;
}


.sp-cases{
    margin-top: 120px;
    margin-bottom: 120px;
}
.sp-cases h2{
    text-align: center;
    font-size: 48px;
    margin-bottom: 60px;
    color: #022453;
}
.sp-cases .cases-ls{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-column-gap: 24px;
    grid-row-gap: 24px;
}
.sp-cases .cases-ls .cases-item{
    border-radius: 12px;
    overflow: hidden;
}
.sp-cases .cases-ls .cases-item img{
    width: 100%;
}
.sp-cases .cases-ls .cases-item div{
    background: #F4F4F4;
    padding: 24px;
}
.sp-cases .cases-ls .cases-item div h3{
    font-size: 24px;
    margin: 0;
    font-weight: bold;
    color: #022453;
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

@media (max-width:1200px){
    .sp-product-ls .product-ls{
        grid-template-columns: repeat(3, 1fr);
    }
    .sp-cases .cases-ls .cases-item div h3{
        font-size: 18px;
    }
    .sp-industry .industry-ls .industry-item .industry-text .text p{
        font-size: 14px;
    }
}

@media (max-width:750px){
    .sp-why-boiler .why-btn{
        max-width: 100%;
        font-size: 16px;
    }

    .sp-gas-boiler-banner .banner-big{
        display: none;
    }
    .sp-gas-boiler-banner .banner-sm{
        display: block;
    }
    .sp-product-ls{
        margin-top: 60px;
    }
    .sp-product-ls h1{
        font-size: 24px;
    }
    .sp-product-ls .product-tab{
        margin-top: 24px;
    }
    .sp-product-ls .product-tab span{
        width: 150px;
        font-size: 16px;
        height: 40px;
        line-height: 40px;
    }
    .sp-product-ls .product-ls{
        grid-template-columns: repeat(2, 1fr);
        grid-column-gap: 12px;
        grid-row-gap: 12px;
        margin-top: 24px;
    }

    .sp-product-ls .product-ls .product-item{
        padding: 12px;
    }
    .sp-product-ls .product-ls .product-item h3{
        font-size: 14px;
        margin: 8px 0;
    }
    .sp-product-ls .product-ls .product-item img{
        width: 80%;
    }
    .sp-product-ls .product-ls .product-item p{
        font-size: 12px;
        text-align: left;
        width: 100%;
    }
    .sp-product-ls .product-ls .product-item span{
        margin-top: 12px;
        height: 36px;
        line-height: 36px;
        font-size: 12px;
    }

    .sp-why-boiler{
        margin-top: 60px;
        padding: 40px 0;
    }
    .sp-why-boiler h2{
        font-size: 24px;
        margin-bottom: 24px;
        margin-top: 0;
    }
    .sp-why-boiler .why-item{
        margin-bottom: 24px;
    }
    .sp-why-boiler .why-item div{
        margin-bottom: 12px;
    }
    .sp-why-boiler .why-item div p{
        font-size: 16px;
        margin: 0;
    }
    .sp-why-boiler .why-item div span{
        font-size: 12px;
        margin-left: 12px;
    }

    .sp-industry .industry-ls{
        display: grid;
        grid-template-columns: repeat(1, 1fr);
        grid-column-gap: 12px;
        grid-row-gap: 12px;
    }

    .sp-why-boiler .why-btn{
        height: 48px;
    }

    .sp-industry{
        margin-top: 60px;
    }
    .sp-industry h2{
        font-size: 24px;
        margin-top: 0;
        margin-bottom: 24px;
    }

    .sp-industry .industry-ls .industry-item .industry-text h3{
        font-size: 18px;
        margin: 0;
    }
    .sp-industry .industry-ls .industry-item .industry-text .text p{
        font-size: 12px;
    }
    .sp-industry .industry-ls .industry-item .industry-text .text img{
        width: 24px;
    }
    .sp-industry .industry-ls .industry-item{
        height: 300px;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        border-radius: 8px;
    }
    .sp-industry .industry-ls .industry-item img{
        position: absolute;
        bottom: 50px;
    }
    .sp-industry .industry-ls .industry-item .industry-text{
        position: absolute;
        z-index: 10;
        padding: 24px;
    }
    .sp-industry .industry-ls .industry-item .industry-text .text img{
        display: none;
    }

    .sp-industry .industry-btn{
        font-size: 14px;
        margin-top: 40px;
        height: 60px;
    }

    .sp-cases{
        margin: 60px 0;
    }
    .sp-cases h2{
        font-size: 24px;
        margin-top: 0;
        margin-bottom: 24px;
    }
    .sp-cases .cases-ls{
        grid-template-columns: repeat(2, 1fr);
        grid-column-gap: 12px;
        grid-row-gap: 12px;
    }
    .sp-cases .cases-ls .cases-item div{
        padding: 12px;
    }
    .sp-cases .cases-ls .cases-item div h3{
        font-size: 14px;
    }
}