.index1 ul li .text .txt {
    height: 180px;
}

.nav li .b_nav dt, .nav li .b_nav dt a {
    width: 160px;
}
.nav li .b_nav dd {
    width: calc(100% - 160px);
}
.b_nav1 .wrap{
    max-width: 740px;
}
.index_txt1 p {
    max-width: 1000px;
}

.index_titlezztt {
    letter-spacing: 1px;
}

.about1 .text p:nth-child(2n) {
    max-height: none !important;
}

.ppwh_list li {
    height: 290px;
}
.ppwh_list li .text .txt2 {
    height: 190px;
}

@media (min-width: 641px) {
    .foot_l {
        width: 290px;
        flex: 0 0 290px;
    }
    .f_nav {
        max-width: 100%;
    }
}
@media (min-width: 1601px) {
    #index2_c .swiper-slide {
        height: 580px;
    }
    .index2_cont:after {
        top: 580px;
    }
    .f_nav dl {
        margin-right: 24px;
    }
}
@media (max-width: 1600px) and (min-width: 1100px) {
    #index2_c .swiper-slide {
        height: 520px;
    }
    .index2_cont:after {
        top: 520px;
    }
    .f_nav dl {
        margin-right: 10px;
    }
    .f_nav dl dd li {
        margin-right: 10px;
    }
}
@media (max-width: 1099px) and (min-width: 821px) {
    #index2_c .swiper-slide {
        height: 440px;
    }
    .index2_cont:after {
        top: 440px;
    }
}
@media (max-width: 820px) and (min-width: 461px) {
    #index2_c .swiper-slide {
        height: 420px;
    }
    .index2_cont:after {
        top: 420px;
    }
}
@media (max-width: 460px) {
    #index2_c .swiper-slide {
        height: 330px;
    }
    .index2_cont:after {
        top: 330px;
    }
}
@media (max-width: 1600px) and (min-width: 1301px) {
    .nav li {
        margin-right: 30px;
    }
}
@media (max-width: 1300px) and (min-width: 961px) {
    .nav li {
        margin-right: 24px;
    }
    .nav li a.a1 {
        font-size: 13px;
    }
    .index1 ul li .text .txt {
        height: 200px;
    }
}
@media (max-width: 960px) {
    .index1 ul li .text .txt {
        height: 200px;
    }
}
@media (max-width: 640px) {
    .f_nav dl:nth-child(1) {
        width: 100%;
    }
    .f_nav dl:nth-child(1) dd {
        max-width: 100%;
    }
    .ppwh_list li {
        height: 270px;
    }
}

.ppwh_list li .text .txt1 {
    font-size: 28px;
}

.ab_t1 h2 {
    font-size: 38px;
}

.about3_list1 dl dt {
    width: 200px;
    padding-right: 10px;
    text-align: right;
    font-size: 45px;
}
.about3_list1 dl dd {
    width: calc(100% - 200px);
}
.about3_list1 dl {
    height: 230px;
}
.about3_list1 dl dd .txt2 {
    height: 150px;
}
.about3_list1 dl dd .txt1 {
    height: 80px;
}
.about3_list2 dl dt span {
    line-height: 1.6;
    font-size: 14px;
}

.about4_r .txt2 {
    font-size: 22px;
}

.about_fz .p3 {
    height: 120px;
}

.case_detail_li li .p1 {
    height: 100px;
    font-size: 18px;
}
.case_detail_li li .p2 {
    height: 90px;
}

@media (max-width: 1600px) {
    .about3_list1 dl dt {
        width: 130px;
        padding-right: 10px;
        text-align: right;
        font-size: 30px;
    }
    .about3_list1 dl dd {
        width: calc(100% - 130px);
    }
    .about4_r .txt2 {
        font-size: 18px;
    }
}
@media (max-width: 1760px) {
    .ppwh_list li .text .txt1 {
        font-size: 24px;
    }
}
@media (max-width: 1440px) {
    .ppwh_list li .text .txt1 {
        font-size: 20px;
    }
    .ab_t1 h2 {
        font-size: 30px;
    }
}
@media (max-width: 1099px) {
    .ab_t1 h2 {
        font-size: 26px;
    }
}
@media (max-width: 900px) {
    .about3_list1 dl dt {
        width: 96px;
        padding-right: 10px;
        text-align: right;
        font-size: 20px;
    }
    .about3_list1 dl dd {
        width: calc(100% - 96px);
    }
    .about3_list1 dl {
        height: 270px;
    }
    .about3_list1 dl dd .txt2 {
        height: 190px;
    }
    .about3_list2 dl dt {
        height: 110px;
    }
}
@media (max-width: 640px) {
    .about4_r .txt2 {
        font-size: 16px;
    }
    .case_detail_li li .p2 {
        height: 140px;
    }
}