*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    color: #666b72;
    background: #ffffff;
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
p {
    margin: 0;
}

img {
    display: block;
    max-width: 100%;
}

.max1400 {
    width: min(1400px, calc(100% - 48px));
    margin-right: auto;
    margin-left: auto;
}

.clearfix::after {
    display: table;
    clear: both;
    content: "";
}

/* about1 */

.about1 {
    position: relative;
    overflow: hidden;
    padding: 90px 0;
    background: #f7f9fc url(//wm.cdn.cn86.cn/shhuachengbz/2026/08/f0777f21dde7mhwz.jpg) no-repeat;
    background-size: cover;
}

.about1-title {
    position: relative;
    padding-left: 18px;
    border-left: 4px solid #134ea7;
}

.about1-title h1 {
    color: #134ea7;
    font-size: 38px;
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: 0.01em;
    text-transform: uppercase;
}

.about1-title > p {
    margin-top: 6px;
    color: #666666;
    font-size: 24px;
    font-weight: 700;
    line-height: 1.2;
    text-transform: uppercase;
}

.about1-since {
    position: absolute;
    top: -5px;
    right: 0;
    color: rgba(19,78,167,.1);
    font-size: 56px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.02em;
    user-select: none;
}

.about1-text {
    margin-top: 37px;
    font-size: 17px;
    line-height: 1.72;
    color: #666666;
}

.about1-images {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
    gap: 38px;
    margin-top: 55px;
}

.about1-image {
    overflow: hidden;
    border-radius: 10px;
    background-color: #e8edf3;
}

.about1-image-big {
    aspect-ratio: 913 / 443;
}

.about1-image-small {
    aspect-ratio: 460 / 443;
}

.about1-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.55s ease;
    cursor: pointer;
}

.about1-image:hover img {
    transform: scale(1.025);
}



/* about2 */

.about2 {
    padding: 90px 0;
    color: #ffffff;
    background: #134ea7;
}

.about2-title {
    text-align: center;
    color: #fff;
}

.about2-title h3 {
    color: #fff;
    font-size: 38px;
    font-weight: 700;
    line-height: 1.25;
    text-transform: uppercase;
}

.about2-title .pp {
    max-width: 1340px;
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.6;
    margin-top: 30px;
}

.about2-swiper{
    position: relative;
    margin-top: 40px;
}
.about2-swiper .swiper-slide{
   margin-bottom: 10px;
}
.about2-swiper .swiper-slide .img{
    border-radius: 10px;
}
.about2-swiper .swiper-slide .img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: pointer;
}



/* about3 */
.about3{
    position: relative;
    background: url(//wm.cdn.cn86.cn/shhuachengbz/2026/08/77cde1d796hoshuu.jpg) no-repeat center bottom;
    padding: 80px 0;
}
.about3-title {
    text-align: center;
}
.about3-title h3 {
    color: #333333;
    font-size: 38px;
    font-weight: 700;
    line-height: 1.25;
    text-transform: uppercase;
}
.about3-title .pp {
    max-width: 1080px;
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.6;
    margin-top: 30px;
    color: #666666;
}

.about3-content{
    position: relative;
    padding-bottom: 120px;
    background: url(//wm.cdn.cn86.cn/shhuachengbz/2026/08/cb50f4272atdjvmt.png) no-repeat center bottom;
    background-size: 1416px 74px;
    margin-top: 60px;
}

.about31{
    position: relative;
}
.about31 .item-slide{
    text-align: center;
    margin: 0 80px;
}
.about31 .item-slide .img img{
    max-width: 100%;
    aspect-ratio: 263 / 365;
}


/* about4 */
.about4{
    position: relative;
    padding: 80px 0 100px;
    background-color: #f0f0f0;
}
.about4-title {
    text-align: center;
}
.about4-title h3 {
    color: #141414;
    font-size: 45px;
    font-weight: 700;
    line-height: 1.25;
}
.about4-title .pp {
    max-width: 660px;
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.5;
    margin-top: 10px;
    color: #666666;
}
.about4-content{
    margin-top: 35px;
}



/* about5 */
.about5{
    position: relative;
    padding: 80px 0;
    background: url(//wm.cdn.cn86.cn/shhuachengbz/2026/08/26c2fdcafcnkeh8m.jpg) no-repeat top center;
    background-size: cover;
}
.about5-title {
    text-align: center;
}
.about5-title h3 {
    color: #141414;
    font-size: 45px;
    font-weight: 700;
    line-height: 1.25;
}
.about5-title .pp {
    max-width: 960px;
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.5;
    margin-top: 10px;
    color: #666666;
}
.about5-content{
    margin-top: 50px;
}
.about5-swiper{
    position: relative;
}
.about5-swiper .swiper-slide .slicon{
    margin-bottom: 15px;
}
.about5-swiper .swiper-slide .slicon .img{
    border: 1px solid rgb(192, 217, 253);
}
.about5-swiper .swiper-slide .slicon .img img{
    display: block;
    width: 100%;
    height: 100%;
    max-height: 110px;
    cursor: pointer;
}

.about5-swiper .swiper-pagination5 {
    position: relative;
    left: 0px;
    right: 0px;
    top: 0px;
    bottom: 0px;
    margin: 0;
    margin-top: 10px;
}

.about5-swiper .swiper-pagination5 .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
    background: #888888;
    border-radius: 50%;
    margin: 0 8px !important;
    opacity: 1;
    position: relative;
    overflow: hidden;
}

.about5-swiper .swiper-pagination5 .swiper-pagination-bullet-active {
    width: 70px;
    background: var(--main-theme-color);
    border-radius: 10px;
}



/* =========================
   About 响应式 CSS
   ========================= */

/* 小屏电脑 */
@media screen and (max-width: 1440px) {
    .about31 .item-slide {
        margin-right: 50px;
        margin-left: 50px;
    }

    .about4 > .pl-50 {
        padding-left: 30px;
    }

    .about4 > .pr-50 {
        padding-right: 30px;
    }
}

/* 平板横屏 */
@media screen and (max-width: 1200px) {
    .about1,
    .about2 {
        padding-top: 75px;
        padding-bottom: 75px;
    }

    .about3,
    .about5 {
        padding-top: 70px;
        padding-bottom: 70px;
    }

    .about4 {
        padding-top: 70px;
        padding-bottom: 80px;
    }

    .about1-title h1,
    .about2-title h3,
    .about3-title h3 {
        font-size: 34px;
    }

    .about4-title h3,
    .about5-title h3 {
        font-size: 38px;
    }

    .about1-title > p {
        font-size: 21px;
    }

    .about1-since {
        font-size: 48px;
    }

    .about1-text,
    .about2-title .pp,
    .about3-title .pp,
    .about4-title .pp,
    .about5-title .pp {
        font-size: 16px;
    }

    .about1-images {
        gap: 25px;
        margin-top: 45px;
    }

    .about31 .item-slide {
        margin-right: 35px;
        margin-left: 35px;
    }

    .about3-content {
        padding-bottom: 100px;
        background-size: 100% auto;
    }

    .about4 > .pl-50 {
        padding-left: 25px;
    }

    .about4 > .pr-50 {
        padding-right: 25px;
    }
}

/* 平板竖屏 */
@media screen and (max-width: 991px) {
    .about1,
    .about2,
    .about3,
    .about5 {
        padding-top: 60px;
        padding-bottom: 60px;
    }

    .about4 {
        padding-top: 60px;
        padding-bottom: 70px;
    }

    .about1-title h1,
    .about2-title h3,
    .about3-title h3 {
        font-size: 30px;
    }

    .about4-title h3,
    .about5-title h3 {
        font-size: 34px;
    }

    .about1-title > p {
        font-size: 19px;
    }

    .about1-since {
        font-size: 40px;
    }

    .about1-text {
        margin-top: 30px;
        font-size: 15px;
        line-height: 1.7;
    }

    .about1-images {
        grid-template-columns: minmax(0, 1.8fr) minmax(220px, 1fr);
        gap: 20px;
        margin-top: 40px;
    }

    .about2-title .pp,
    .about3-title .pp {
        margin-top: 22px;
        font-size: 15px;
    }

    .about2-swiper {
        margin-top: 32px;
    }

    .about3-content {
        margin-top: 45px;
        padding-bottom: 80px;
    }

    .about31 {
        justify-content: space-around;
    }

    .about31 .item-slide {
        width: 28%;
        margin-right: 2.5%;
        margin-left: 2.5%;
    }

    .about31 .item-slide .img img {
        width: 100%;
    }

    .about4 > .pl-50 {
        padding-left: 20px;
    }

    .about4 > .pr-50 {
        padding-right: 20px;
    }

    .about4-title .pp,
    .about5-title .pp {
        font-size: 15px;
    }

    .about4-content {
        margin-top: 30px;
    }

    .h-photo-list4 {
        display: grid !important;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 20px;
    }

    .h-photo-list4 li {
        width: auto !important;
        margin: 0 !important;
    }

    .about5-content {
        margin-top: 40px;
    }
}

/* 手机 */
@media screen and (max-width: 767px) {
    .about1,
    .about2,
    .about3,
    .about5 {
        padding-top: 45px;
        padding-bottom: 45px;
    }

    .about4 {
        padding-top: 45px;
        padding-bottom: 55px;
    }

    /* about1 */

    .about1-title {
        padding-left: 12px;
        border-left-width: 3px;
    }

    .about1-title h1 {
        font-size: 26px;
        line-height: 1.2;
    }

    .about1-title > p {
        margin-top: 5px;
        padding-right: 10px;
        font-size: 16px;
        line-height: 1.4;
    }

    .about1-since {
        position: static;
        display: block;
        margin-top: 10px;
        font-size: 27px;
    }

    .about1-text {
        margin-top: 25px;
        font-size: 14px;
        line-height: 1.75;
    }

    .about1-text p {
        margin-bottom: 18px;
    }

    .about1-text p:last-child {
        margin-bottom: 0;
    }

    .about1-text h2,
    .about1-text h3,
    .about1-text h4 {
        margin-top: 28px;
        margin-bottom: 8px;
        font-size: 17px;
        line-height: 1.5;
    }

    .about1-images {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-top: 32px;
    }

    .about1-image-big,
    .about1-image-small {
        aspect-ratio: 16 / 9;
    }

    /* about2 */

    .about2-title h3,
    .about3-title h3 {
        font-size: 25px;
        line-height: 1.3;
    }

    .about2-title .pp,
    .about3-title .pp {
        margin-top: 18px;
        font-size: 14px;
        line-height: 1.7;
    }

    .about2-swiper {
        margin-top: 28px;
    }

    .about2-swiper .swiper-slide .img {
        overflow: hidden;
        aspect-ratio: 340 / 292;
        border-radius: 7px;
    }

    /* about3 */

    .about3 {
        background-size: auto 100%;
    }

    .about3-content {
        margin-top: 35px;
        padding-bottom: 55px;
        background-size: 100% auto;
    }

    .about31 {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        align-items: end;
        gap: 10px;
    }

    .about31 .item-slide {
        width: auto;
        margin: 0;
    }

    .about31 .item-slide .img img {
        width: 100%;
        height: auto;
        aspect-ratio: 263 / 365;
        object-fit: contain;
    }

    /* about4 */

    .about4 > .pl-50 {
        padding-left: 15px;
    }

    .about4 > .pr-50 {
        padding-right: 15px;
    }

    .about4-title h3,
    .about5-title h3 {
        font-size: 28px;
        line-height: 1.3;
    }

    .about4-title .pp,
    .about5-title .pp {
        margin-top: 10px;
        font-size: 14px;
        line-height: 1.65;
    }

    .about4-content {
        margin-top: 25px;
    }

    .h-photo-list4 {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .h-photo-list4 li {
        width: 100% !important;
    }

    .h-photo-list4 li .txt {
        padding: 18px 15px;
    }

    .h-photo-list4 li .txt .p1 {
        font-size: 18px;
        line-height: 1.4;
    }

    .h-photo-list4 li .txt .p2 {
        margin-top: 8px;
        font-size: 14px;
        line-height: 1.6;
    }

    /* about5 */

    .about5-content {
        margin-top: 30px;
    }

    .about5-swiper .swiper-slide .slicon {
        margin-bottom: 10px;
    }

    .about5-swiper .swiper-slide .slicon .img {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 80px;
        padding: 8px;
        background-color: #ffffff;
    }

    .about5-swiper .swiper-slide .slicon .img img {
        width: auto;
        height: auto;
        max-width: 100%;
        max-height: 62px;
        object-fit: contain;
    }

    .about5-swiper .swiper-pagination5 {
        margin-top: 15px;
    }

    .about5-swiper .swiper-pagination5 .swiper-pagination-bullet {
        margin-right: 5px !important;
        margin-left: 5px !important;
    }

    .about5-swiper .swiper-pagination5 .swiper-pagination-bullet-active {
        width: 42px;
        background-color: #134ea7;
    }
}

/* 小屏手机 */
@media screen and (max-width: 480px) {
    .about1,
    .about2,
    .about3,
    .about5 {
        padding-top: 38px;
        padding-bottom: 38px;
    }

    .about4 {
        padding-top: 38px;
        padding-bottom: 45px;
    }

    .about1-title h1 {
        font-size: 23px;
    }

    .about1-title > p {
        font-size: 14px;
    }

    .about1-since {
        font-size: 23px;
    }

    .about1-text {
        font-size: 13px;
    }

    .about1-image-big,
    .about1-image-small {
        aspect-ratio: 4 / 3;
    }

    .about2-title h3,
    .about3-title h3 {
        font-size: 22px;
    }

    .about4-title h3,
    .about5-title h3 {
        font-size: 24px;
    }

    .about2-title .pp,
    .about3-title .pp,
    .about4-title .pp,
    .about5-title .pp {
        font-size: 13px;
    }

    .about31 {
        gap: 16px;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .about3-content {
        padding-bottom: 45px;
    }

    .h-photo-list4 li .txt {
        padding: 15px 12px;
    }

    .about5-swiper .swiper-slide .slicon .img {
        height: 70px;
        padding: 6px;
    }

    .about5-swiper .swiper-slide .slicon .img img {
        max-height: 54px;
    }
}

/* 触屏设备取消图片悬停放大 */
@media (hover: none) {
    .about1-image:hover img {
        transform: none;
    }
}