@media screen and (min-width:768px){
    .header{
        position: fixed; 
        background: none;
    }
    
.section{
    position: relative;
    background-image: url('../img/header.png');
    background-repeat: no-repeat;
    background-position: left top;
    background-size: cover;
    padding: 0px;
    min-height: 911px;
}
.mcb-wrap-inner{
    display: flex;
    width: 100%;
    padding-top: 386px;
    padding-bottom: 366px;
}
.title{
    width: 30%;
    color: #fff;
    font-size: 48px;
    line-height: 48px;
    font-weight: 700;
    letter-spacing: 0;
    margin-bottom: 15px;
    font-family: "Montserrat", Helvetica, Arial, sans-serif;
}
.introduce{
    position: relative;
}
.introduce-box1{
    max-width: 1200px;
    margin: 0 auto;
}
.box1-content{
    width: 98%;
    margin: 0 1% 40px;
}
.column_attr{
    width: 100%;
    text-align: center;
    padding: 60px 20px 60px;
}
.column_attr h2{
    font-size: 30px;
    line-height: 30px;
    font-weight: 700;
    letter-spacing: 0;
    color: #444;
}
.column-box{
    width: 100%;
    display: flex;
}
.method-box{
    max-width: 400px;
    margin: 0 auto;
    width: 33.33%;
}
.method-title{
    padding: 40px 20px 20px
}
.method-box h2{
    font-size: 30px;
    line-height: 30px;
    font-weight: 700;
    letter-spacing: 0;
    color: #444;
}
.method{
    padding: 20px;
}
.method p{
    font-size: 18px;
    margin: 0 0 15px;
    color: #848484;
    margin-block-start: 1em;
    margin-block-end: 1em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    unicode-bidi: isolate;
    line-height: 28px;
}
.read_more{
    color: #ff0000;
    background: url("../img/home_energy_right.png") no-repeat right center;
    padding-right: 21px;
}
.read_more:hover{
    color: #c96464;
    text-decoration: underline;
}
.introduce-box2{
    width: 100%;
    background-color: #295eaf;
}
.box2-content{
    max-width: 1200px;
    width: 98%;
    margin: 0 auto;

}
.column_attr2{
    width: 100%;
    text-align: center;
    padding: 60px 20px 30px;
}
.column_attr2 h2{
    font-size: 30px;
    line-height: 30px;
    color: #444;
    font-weight: 700;
}
.column_attr{
    width: 100%;
    text-align: center;
    overflow: hidden;

}
.column_attr h2{
    font-size: 26px;
    line-height: 26px;
    letter-spacing: 0px;
    color: #fff;
    position: relative;
    display: inline-block;

}
.icon-left{
    background-color: #fff;
    position: absolute;
    width: 1000px;
    height: 1px;
    top: 50%;
    right: 100%;
    margin-right: 20px
}
.icon-right{
    background-color: #fff;
    position: absolute;
    width: 1000px;
    height: 1px;
    top: 50%;
    left: 100%;
    margin-left: 20px
}
.box2-text{
    width: 100%;
    margin: 0 auto;
    /* display: flex;
    justify-content: space-between; */

}
.text-left{
    width: 48%;
    float: left;
    border-color: #e2e2e2;
    position: relative;
    overflow: hidden;
}
.text-left img{
    max-width: 100%;
    height: auto;

}
.text-right{
    width: 50%;
    float: right;
    border-color: #fff;
    position: relative;
}
.text-right p{
    margin: 0 0 15px;
}
.how-text{
    display: -webkit-box; 
    -webkit-line-clamp: 2; 
    -webkit-box-orient: vertical; 
    overflow: hidden;
    text-overflow: ellipsis;
}
}
@media screen and (max-width:768px){
    .content{
        width: 100%;
    }
    .section{
        position: relative;
        background-image: url('../img/header.png');
        background-repeat: no-repeat;
        background-position: left top;
        background-size: cover;
        min-height: calc(100vh - 90px);
        padding: 0px;
    }
    .mcb-wrap-inner{
        display: flex;
        width: 100%;
        padding-top: 292px;
        padding-bottom: 272px;
    }
    .top-left{
        display: none;
    }
    .title{
        width: 100%;
        color: #fff;
        font-size: 48px;
        line-height: 48px;
        font-weight: 700;
        letter-spacing: 0;
        margin-bottom: 15px;
        font-family: "Montserrat", Helvetica, Arial, sans-serif;
    }
    .introduce{
        position: relative;
    }
    .introduce-box1{
        max-width: 700px;
        margin: 0 auto;
    }
    .box1-content{
        padding: 0px 33px 20px;
    }
    .column_attr{
        width: 100%;
        text-align: center;
        padding: 60px 20px 60px;
    }
    .box1-content .column_attr h2{
        color: #444;
    }
    .column-box{
        width: 100%;
        max-width: 400px;

    }
    .method-box{
        width: 100%;
        margin: 0 auto;
        padding: 40px 20px 20px

    }
    .read_more{
        color: #ff0000;
        background: url("../img/home_energy_right.png") no-repeat right center;
        padding-right: 21px;
    }
    .read_more:hover{
        color: #c96464;
        text-decoration: underline;
    }
    .introduce-box2{
        width: 100%;
    }
    .box2-content{
        max-width: 1200px;
        background-color: #295eaf;
    
    }
    .column_attr{
        width: 100%;
        text-align: center;
        overflow: hidden;
    
    }
    .column_attr2{
        width: 100%;
        text-align: center;
        padding: 30px 0px 30px;
    }
    .column_attr2 h2{
        font-size: 22px;
        line-height: 24px;
        color: #444;
        font-weight: 700;
    }
    .column_attr h2{
        color: #fff;
    }
    .icon-left{
        display: none;  
    }
    .icon-right{
        display: none;
    }
    .box2-text{
        width: 100%;
    }
    .text-left{
        width: 100%;
        border-color: #e2e2e2;
        position: relative;
        overflow: hidden;
    }
    .text-left img{
        width: 100%;
        height: auto;
    
    }
    .text-right{
        width: 100%;
        padding: 0 33px 20px;
        border-color: #fff;
        position: relative;
    }
    .text-right p{
        margin: 0 0 15px;
    }

}