:root {
    --primary-color: #8828FF ;
    --secondary-color: #6F48C9;
    --background-color: #ffffff;
    --text-color: #333;
}
/* 全局样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.5;
    padding-top: 165px; /* 桌面端导航栏高度 */
}
ul{
    padding: 0;
    margin: 0;
}
li {
    list-style: none;
 }
/* 通用标题样式 */
.section-title {
    color: #20184E;
    font-weight: 600;
    margin-bottom: 48px;
    position: relative;
    text-align: center;
}
/* 通用图标样式 */
.contact-icon {
    width: 32px;
    height: 32px;
}
/* 通用文本样式 */
.contact-text {
    color: #20184E;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
/* 公司介绍 */
.company-contact{
    /* 修改定位方式 */
    margin-top: -165px;
    /* 移除top属性 */
    padding: 310px 0 250px;
    background: url(../images/bg2.png) no-repeat top;
    background-size: auto;
    background-position: top;
}
/* 内容部分 */
.contact-section {
    position: relative;
    background: #fff;
    padding: 0 0 90px;
}
.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    background: url(../images/bg-img2.png) no-repeat bottom;
    width: 136px;
    height: 531px;
    z-index: 0;
}
.contact-section::after {
    content: '';
    position: absolute;
    bottom: -180px;
    background: url(../images/bg-img1.png) no-repeat top;
    width: 168px;
    height: 531px;
    z-index: 0;
    right: 0px;
    background-size: 80%;
}
.bg-title{
    display: flex;
    flex-flow: row wrap;
    justify-content: space-around;
    align-items: flex-start;
    color: #fff;
}
.container-box-left{
    color: #fff;
}
.section-title-text{
    margin-top: 30px;
    margin-bottom: 88px;
}
.section-title-other{
    margin-bottom: 80px;
}
.section-title-secondary{
    margin-bottom: 120px;
}
.btn-big{
    padding: 16px 64px;
    border-radius: 50px;
    background: var(--primary-color);
    color: #fff;
    border: none;
}

/* 第二部分 */
.contact-section.one-bg::after{
    content: none;
}
.case-part01{
    margin-top: 110px;
}
.case-part01-title{
    color: #20184E;
    text-align: center;
}
.case-part01-title h2{
    margin-bottom: 40px;
}
.list-two{
    margin-top: 88px;
    background: url(../images/card-bg.png) no-repeat center;
    background-size: contain;
}
.list-two .list-card img{
    width: 100%;
    height: 100%;
}
.list-two ul{
    padding: 0;
    display: flex;
    flex-flow: row wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 56px;
}
.list-two .list-card{
    width: 30%;
    height: 425px;
    background: #fff;
    padding: 32px;
    border-radius: 20px;
    box-shadow: 0 0 16px 1px rgb(193 115 255 / 12%);
}
.list-card-img{
    width: 153px;
    height: 131px;
    margin: 0px auto;
}
.list-card h3 {
    text-align: center;
    margin: 40px 0 32px;
    color: #20184E;
}
.list-card p{
    line-height: 30px;
    color: var(--text-secondary);
    text-align: justify;
    margin-bottom: 0;
}
/*第三部分 */
.other-bg{
    background: url(../images/other-bg.png) no-repeat center;
    background-size: cover;
    padding: 250px 0;
    background-position: top;
    margin-top: -120px;
}
.other-bg::before,.other-bg::after{
    content: none;
}
.case-part02{
    padding: 60px 0 30px;
}
.partner-list{
    margin-top: 82px;
}
.partner-list-item{
    width: 100%;
    display: flex;
    flex-flow: row wrap; 
    margin-bottom: 42px;
}
.partner-item-box{
    background: #fff;
    padding: 20px 24px 20px 48px;
    border-radius: 20px;
    box-shadow: 0 0 16px 1px rgb(193 115 255 / 12%);
    text-align: left;
    width: 45%;
    height: max-content;
    position: relative;
}
.partner-item-box::before{
    content: '';
    position: absolute;
    top: 0;
    width: 7px;
    height: 44px;
    background: var(--primary-color);
    left: 20px;
    bottom: 0;
    margin: auto;
    border-radius: 10px;
}
.partner-item-box h3{
    color: #20184E;
}
.partner-item-box p{
    margin-bottom: 0;
    line-height: 30px;
    color: var(--text-secondary);
    text-align: justify;
}
/* 第一块的li样式 */
.partner-size-start{
    gap: 80px;
    justify-content: flex-start;
    align-items: flex-end;
}
/* 第二块的li样式 */
.partner-size-end{
    gap: 60px;
    justify-content: flex-end;
    align-items: flex-start;
}
.partner-size-end div:first-child{
    margin-top: 26px;
}
/* 第三块的li样式 */
.partner-size-center{
    gap: 60px;
    justify-content: space-evenly;
    align-items: center;
}
/*第四部分 */
.floor::before {
    top: 740px;
}
.floor::after {
    bottom: 82%;
}
.case-part03{
    margin-bottom: 100px;
}
.company-image-group{
    margin-top: -104px;
    background: url(../images/card-bg.png) no-repeat top;
    background-size: contain;
    padding-top: 160px;
}
.company-image-group ul{
    background: #fff;
    padding: 40px;
    display: flex;
    flex-flow: row;
    gap: 12px;
    justify-content: space-around;
    align-items: flex-start;
    height: 800px;
}
.company-image-group img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.company-image-group ul li{
    height: 100%;
    flex: 1 1 0%; 
    min-height: 0;
}
.group-left,.group-center,.group-right{
    display: flex;
    flex-flow: column;
    gap: 12px;
}
/* 左边的盒子 */
.group-left div{
    flex: 1 1 0%; 
    min-height: 0;
}
/* 中间的盒子 */
.group-center div:first-child{
    flex: 2 1 0%; 
    min-height: 0;
}
.group-center div:last-child{
    flex: 1 1 0%; 
    min-height: 0;
}
/* 右边的盒子 */
.group-right div:first-child{
    flex: 1 1 0%; 
    min-height: 0;
}
.group-right div:last-child{
    flex: 2 1 0%; 
    min-height: 0;
}
/* 资质证书 */
.zizhi-bg{
    margin-top: -104px;
    background: url(../images/card-bg.png) no-repeat top;
    background-size: contain;
    padding-top: 160px;
}
.zizhi-list{
    background: #fff;
    padding: 40px;
}
.list-one ul{
    padding: 0;
    display: flex;
    flex-flow: row wrap;
    justify-content: space-evenly;
    align-items: flex-end;
}
.list-one li{
    width: 26%;
    height: inherit;
}
.list-one li:last-child{
    width: 44%;
    height: inherit;
}
.list-one li img,.zizhi-group li img{
    width: 100%;
    height: 100%;
}
.zizhi-group ul{
    padding: 0;
    display: flex;
    flex-flow: row wrap;
    justify-content: space-evenly;
    align-items: center;
}
.zizhi-group li{
    width: 24%;
    height: inherit;
    
}
.zizhi-group li p{
    text-align: center;
    color: #20184E;
    margin-top: 16px;
}
/* 第五部分 */
.floor-one::before {
    content: none;
}
.floor-one::after {
    bottom: 82%;
}
.videos-box{
    margin-bottom: 100px;
}
.videos-box p{
    color: #20184E;
    text-align: center;
    margin: 24px auto;
}
.videos-box ul{
    display: flex;
    flex-flow: row;
    gap: 80px;
    justify-content: space-around;
    align-items: flex-start;
}
.video-list-item{
    width: 100%;
    height: 100%;
    flex: 1 1 0%;
    min-height: 0;
}
.video-list-item ul{
    display: flex;
    flex-flow: column;
    gap: 64px;
    justify-content: space-around;
    align-items: flex-start;
}
.video-list-item ul li{
    width: 100%;
    height: 100%;
    flex: 1 1 0%;
    min-height: 0;
    background: #fff;
    box-shadow: 0 0 16px 1px rgb(193 115 255 / 12%);
}
.video-part{
    width: 100%;
    aspect-ratio: 16 / 9;
    position: relative;
}
/* 客户案例 */
.case-tab{
    margin-bottom: 60px;
}
.tab-content {
    position: relative;
    width: 100%;
    overflow: hidden;
    aspect-ratio: 2 / 1;
}
.tab-pane {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: all 0.5s ease;
    pointer-events: none;
}
.tab-pane.active {
    opacity: 1;
    pointer-events: all;
}
.case-tab .tab-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 20px;
}

.arrow-btn {
    background: none;
    border: none;
    padding: 0;
    width: 40px;
    height: 40px;
}
.arrow-btn img {
    width: 100%;
    height: 100%;
}

.image-grid {
    display: flex;
    gap: 20px;
    flex-flow: column;
    height: 100%;
}

.row-top, .row-bottom {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    width: 100%;
    height: 100%;
    flex: 1 1 0%;
    min-height: 0;
}

.image-grid img {
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    width: 100%;
    aspect-ratio: 1 / 2;
    flex: 1 1 0%;
    min-height: 0;
}

/* 移动端适配 */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 30px;
    }
    .contact-section::before,.contact-section::after {
        content: none;
    }
    .contact-section {
        padding: 10px 0;
    }
    /* 第一部分 */
    .company-contact {
        padding: 210px 0 120px;
        background-size: 200% 100%;
    }
    .section-title-text {
        margin-top: 0;
        margin-bottom: 24px;
    }
    .section-title-other {
        margin-bottom: 32px;
    }
    .section-title-secondary {
        margin-bottom: 60px;
    }
    .btn-big {
        padding: 8px 32px;
    }
    /* 第二部分 */
    .case-part01 {
        margin-top: 70px;
    }
    .case-part01-title h2 {
        margin-bottom: 20px;
    }
    .list-two ul {
        gap: 40px;
    }
    .list-card h3 {
        margin: 36px 0 24px;
    }
    /* 第三部分 */
    .other-bg {
        padding: 330px 0 230px;
        margin-top: -120px;
    }
    .case-part02 {
        padding: 0;
    }
    .partner-list {
        margin-top: 72px;
    }
    .partner-item-box p {
        line-height: 20px;
    }
    /*第四部分 */
    .floor{
        padding: 0;
        margin-top: -40px;
    }
    .case-part03{
        margin-bottom: 70px;
    }
    .company-image-group,.zizhi-bg{
        margin-top: -80px;
        padding-top: 100px;
    }
    .company-image-group ul{
        padding: 24px;
        height: 580px;
    }
    /* 企业资质 */
    .zizhi-list{
        padding: 24px;
    }
    /* 视频盒子 */
    .videos-box ul {
        gap: 48px;
    }
    .videos-box p {
        margin: 20px auto;
    }
    /* 客户案例 */
    
    
    .arrow-btn {
        width: 32px;
        height: 32px;
    }
    .row-top, .row-bottom {
        flex-flow: row;
    }
    .image-grid {
        flex-flow: column;
    }
    .image-grid img {
        width: 21%;
        aspect-ratio: 1 / 2;
    }
}

@media (max-width: 991px) {
    body {
        padding-top: 48px; /* 移动端导航栏高度 */
    }

    /* 联系部分适配 */
    .contact-section {
        padding: 40px 0;
    }
    /* 第一部分 */
    .company-contact {
        margin-top: -48px;
        padding: 120px 0 50px;
        background-size: 200% 100%;
    }
    .section-title-text {
        margin-top: 0;
        margin-bottom: 24px;
    }
    .section-title-other {
        margin-bottom: 32px;
    }
    .section-title-secondary {
        margin-bottom: 48px;
    }
    .btn-big {
        padding: 8px 32px;
    }
    /* 第二部分 */
    .case-part01 {
        margin-top: 20px;
    }
    .case-part01-title h2 {
        margin-bottom: 20px;
    }
    .list-two {
        margin-top: 48px;
    }
    .list-two ul {
        gap: 16px;
        align-items: flex-start;
    }
    .list-two .list-card {
        width: 31.33%;
        height: 410px;
    }
    .list-card-img {
        width: 114px;
        height: 98px;
    }
    .list-card h3 {
        margin: 32px 0 16px;
    }
    .list-card p {
        line-height: 28px;
    }
    /* 第三部分 */
    .other-bg {
        padding: 250px 0;
        margin-top: -120px;
    }
    .case-part02 {
        padding: 0;
    }
    .partner-list {
        margin-top: 32px;
    }
    .partner-list-item {
        margin-bottom: 26px;
    }
    .partner-item-box::before {
        width: 4px;
        height: 32px;
        left: 16px;
    }
    .partner-item-box p {
        line-height: 20px;
    }
    /* 第二块的li样式 */
    .partner-size-start,.partner-size-end,.partner-size-center {
        gap: 40px;
    }
    .partner-list-item:last-child {
        margin-top: 26px;
    }
    /*第四部分 */
    .floor{
        padding: 0;
        margin-top: -40px;
    }
    .case-part03{
        margin-bottom: 60px;
    }
    .case-part03{
        margin-bottom: 40px;
    }
    .company-image-group,.zizhi-bg{
        margin-top: -80px;
        padding-top: 100px;
    }
    .company-image-group ul{
        padding: 16px;
        height: 500px;
    }
    /* 企业资质 */
    .zizhi-list{
        padding: 16px;
    }
    /* 视频盒子 */
    .videos-box {
        margin-bottom: 70px;
    }
    .videos-box ul {
        gap: 32px;
    }
    .videos-box p {
        margin: 16px auto;
    }
    /* 客户案例 */
    .case-tab {
        margin-bottom: 30px;
    }
    .tab-content {
        aspect-ratio: 1 / 2;
    }
    .arrow-btn {
        width: 32px;
        height: 32px;
    }
    .row-top, .row-bottom {
        flex-flow: column;
    }
    .image-grid {
        flex-flow: row;
    }
    .image-grid img {
        width: 100%;
        aspect-ratio: 1 / 2;
    }
}



@media (max-width: 767px) {
    .container {
        padding: 0 30px;
    }
    /* 第一部分 */
    .company-contact {
        margin-top: -48px;
        padding: 80px 0 50px;
        background-size: 200% 100%;
    }
    .section-title-text {
        margin-top: 0;
        margin-bottom: 24px;
    }
    .section-title-other {
        margin-bottom: 32px;
    }
    .section-title-secondary {
        margin-bottom: 48px;
    }
    .btn-big {
        padding: 8px 32px;
    }
    /* 第二部分 */
    .contact-section {
        padding: 40px 0;
        margin-bottom: -200px;
        z-index: 30;
    }
    .case-part01 {
        margin-top: 10px;
    }
    .case-part01-title h2 {
        margin-bottom: 20px;
    }
    .list-two {
        margin-top: 28px;
    }
    .list-two ul {
        gap: 16px;
        align-items: flex-start;
    }
    .list-two .list-card {
        width: 100%;
        height: auto;
        background: #fff;
        padding: 24px;
    }
    .list-card-img {
        width: 102px;
        height: 87px;
    }
    .list-card h3 {
        margin: 32px 0 16px;
    }
    .list-card p {
        line-height: 24px;
    }
    /* 第三部分 */
    .other-bg {
        padding: 200px 0 180px;
        margin-top: -160px;
        z-index: 2;
        background-size: auto 100%;
    }
    .case-part02 {
        padding: 60px 0 30px;
    }
    .partner-list {
        margin-top: 32px;
    }
    .partner-item-box {
        width: 100%;
        padding: 12px 12px 12px 36px;
    }
    .partner-list-item {
        margin-bottom: 16px;
    }
    .partner-item-box::before {
        width: 4px;
        height: 32px;
        left: 16px;
    }
    .partner-item-box p {
        line-height: 20px;
    }
    /* 第二块的li样式 */
    .partner-size-start,.partner-size-end,.partner-size-center {
        gap: 16px;
    }
    .partner-size-end div:first-child {
        margin-top: 0;
    }
    /*第四部分 */
    .floor{
        padding: 0;
        margin-top: 100px;
    }
    .company-image-group,.zizhi-bg{
        margin-top: -48px;
        padding-top: 60px;
    }
    .company-image-group ul{
        padding: 8px;
        height: 340px;
    }
    /* 企业资质 */
    /* 企业资质 */
    .zizhi-list{
        padding: 8px;
    }
    .list-one li,.list-two li{
        width: 45%;
    }
    .list-one li:last-child {
        width: 80%;
        margin-top: 16px;
    }
    .zizhi-group li p{
        margin-top: 8px;
        margin-bottom: 16px;
    }
    /* 视频盒子 */
    .videos-box {
        margin-bottom: 60px;
    }
    .videos-box ul {
        flex-flow: column;
        gap: 24px;
    }
    .videos-box p {
        margin: 16px auto;
    }
    /* 客户案例 */
    .case-tab {
        margin-bottom: 20px;
    }
    .arrow-btn {
        width: 28px;
        height: 28px;
    }
    .row-top, .row-bottom {
        flex-flow: column;
    }
    .image-grid {
        flex-flow: row;
    }
}