.l h4
{
    font-size: 100px;
    letter-spacing: 5px;
    font-weight: bolder;
    color: #d7e1e9;
    text-transform: uppercase;
}
.l img
{
    display: block;
    width: 50%;
}
.l h5
{
    margin: -35px 0 0 0;
    color: #3872a3;
    font-size: 30px;
}
.quality_box .l
{
    flex-direction: column;
    width: 50%;
}
.quality_box .l span
{
    line-height: 36px;
}
.quality_box .r
{
    width: 40%;
}
.quality_box .r p
{
    margin: 40px 0 0 0!important;
    color: #3872a3;
    text-align: center;
}
.quality_box .r .p_box
{
    border: 6px solid #3872a3;
}
.quality_box .r .p_box img
{
    display: block;
    width: 100%;
}
.technology_box
{
    margin: 100px 0 0 0;
}
.technology_box span
{
    display: block;
    margin: 80px 0 60px 0;
    line-height: 36px;
}
.technology_box .p_box
{
    border: 4px solid #fff;
}
.technology_box .p_box img
{
    display: block;
    width: 100%;
}
.advantage_box
{
    background-image: url(../image/背景\ \(35\).png);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: 100% 100%;
}
.production_box
{
    margin: 100px 0 0 0;
}
.production_box .l
{
    flex-direction: column;
    width: 50%;
}
.production_box .l p
{
    padding: 80px;
    background-color: #fff;
    box-sizing: border-box;
}
.production_box .r
{
    width: 40%;
}
.production_box .r .p_box
{
    display: flex;
    align-items: center;
    justify-content: center;
    border: 6px solid #3872a3;
    background-color: #fff;
}
.production_box .r img
{
    display: block;
    max-width: 100%;
}
.bigp_box
{
    margin: 70px 0 0 0;
}
.bigp_box img
{
    width: 100%;
}
@media screen and (max-width: 1680px)
{
    .l h4
    {
        font-size: 90px;
    }
    .l h5
    {
        font-size: 28px;
    }
    .quality_box .l span
    {
        line-height: 30px;
        font-size: 14px;
    }
    .quality_box .r p
    {
        margin: 30px 0 0 0!important;
        font-size: 18px;
    }
    .technology_box
    {
        margin: 90px 0 0 0;
    }
    .technology_box span
    {
        margin: 70px 0 50px 0;
        line-height: 30px;
        font-size: 14px;
    }
    .production_box
    {
        margin: 90px 0 0 0;
    }
    .production_box .l p
    {
        padding: 70px;
    }
    .bigp_box
    {
        margin: 60px 0 0 0;
    }
}
@media screen and (max-width: 1600px)
{
    .l h4
    {
        font-size: 80px;
    }
    .l h5
    {
        font-size: 26px;
    }
    .quality_box .l span
    {
        line-height: 25px;
    }
    .quality_box .r p
    {
        margin: 20px 0 0 0!important;
        font-size: 16px;
    }
    .technology_box
    {
        margin: 80px 0 0 0;
    }
    .technology_box span
    {
        margin: 60px 0 40px 0;
        line-height: 25px;
    }
    .production_box
    {
        margin: 80px 0 0 0;
    }
    .production_box .l p
    {
        padding: 60px;
    }
    .bigp_box
    {
        margin: 50px 0 0 0;
    }
}
@media screen and (max-width: 1440px)
{
    .line_two .l
    {
        justify-content: space-around;
    }
    .l h4
    {
        font-size: 70px;
    }
    .l h5
    {
        font-size: 24px;
    }
    .quality_box .l span
    {
        line-height: 20px;
    }
    .quality_box .r p
    {
        margin: 15px 0 0 0!important;
        font-size: 14px;
    }
    .technology_box
    {
        margin: 70px 0 0 0;
    }
    .technology_box span
    {
        margin: 50px 0 30px 0;
        line-height: 20px;
    }
    .production_box
    {
        margin: 70px 0 0 0;
    }
    .production_box .l p
    {
        padding: 50px;
    }
    .bigp_box
    {
        margin: 40px 0 0 0;
    }
}
@media screen and (max-width: 1366px)
{
    .l h4
    {
        font-size: 60px;
    }
    .l h5
    {
        font-size: 22px;
    }
    .technology_box
    {
        margin: 60px 0 0 0;
    }
    .technology_box span
    {
        margin: 40px 0 20px 0;
    }
    .production_box
    {
        margin: 60px 0 0 0;
    }
    .production_box .l p
    {
        padding: 40px;
    }
    .bigp_box
    {
        margin: 30px 0 0 0;
    }
    .l h5
    {
        margin: -35px 0 0 0;
    }
}
@media screen and (max-width: 1280px)
{
    .l h4
    {
        font-size: 50px;
    }
    .l h5
    {
        font-size: 20px;
    }
    .technology_box
    {
        margin: 50px 0 0 0;
    }
    .technology_box span
    {
        margin: 30px 0 15px 0;
    }
    .production_box
    {
        margin: 50px 0 0 0;
    }
    .production_box .l p
    {
        padding: 30px;
    }
    .bigp_box
    {
        margin: 20px 0 0 0;
    }
}
@media screen and (max-width: 1024px)
{
    .l h4
    {
        font-size: 40px;
    }
    .l h5
    {
        font-size: 18px;
    }
    .technology_box
    {
        margin: 40px 0 0 0;
    }
    .technology_box span
    {
        margin: 20px 0 15px 0;
    }
    .production_box
    {
        margin: 40px 0 0 0;
    }
    .production_box .l p
    {
        padding: 20px;
    }
    .bigp_box
    {
        margin: 15px 0 0 0;
    }
    .l h5
    {
        margin: -25px 0 0 0;
    }
}
@media screen and (max-width: 980px)
{
    .quality_box .l span
    {
        line-height: 1.5;
    }
    .technology_box span
    {
        line-height: 1.5;
    }
    .l h4
    {
        font-size: 30px;
    }
    .l h5
    {
        font-size: 16px;
    }
    .technology_box
    {
        margin: 30px 0 0 0;
    }
    .production_box
    {
        margin: 30px 0 0 0;
    }
    .production_box .l p
    {
        padding: 15px;
    }
    .quality_box .l, .quality_box .r
    {
        width: 100%;
    }
    .quality_box
    {
        flex-wrap: wrap;
    }
    .quality_box .l span
    {
        display: block;
        margin: 15px 0;
    }
    .production_box .l, .production_box .r
    {
        width: 100%;
    }
    .production_box
    {
        flex-wrap: wrap;
    }
    .production_box .l p
    {
        margin: 15px 0!important;
    }
}
@media screen and (max-width: 768px)
{
    .quality_box .l span
    {
        line-height: 1.3;
    }
    .technology_box span
    {
        line-height: 1.3;
    }
    .l h4
    {
        font-size: 28px;
    }
    .l h5
    {
        font-size: 16px;
    }
    .technology_box
    {
        margin: 20px 0 0 0;
    }
    .production_box
    {
        margin: 20px 0 0 0;
    }
    .l h5
    {
        margin: -15px 0 0 0;
    }
}
@media screen and (max-width: 640px)
{
    .l h4
    {
        font-size: 26px;
    }
    .technology_box
    {
        margin: 15px 0 0 0;
    }
    .production_box
    {
        margin: 15px 0 0 0;
    }
}
@media screen and (max-width: 375px)
{
    .l h4
    {
        font-size: 24px;
    }
}