/* 样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Helvetica, "PingFang SC", "Microsoft Yahei", sans-serif;
}

img {
    width: 100%;
}


/* 设置主要色调和次要色调 */
:root {
    --primary-color: rgb(71, 102, 255);
    --secondary-color: #e3e3e3;
    --text-color-lightest: #cccccc;
    --text-color-darker: #2e2e2e;
    --text-color-dark: #494949;
    --text-color-gray: #8b8b8b;
    --text-color-dark-gray: #727272;
    --text-color-light-gray: #c6c6c6;
    --backdrop-color: rgba(42, 42, 42, 0.69)
}

/* head.sticky,
.glide,
section,
footer{
    max-width: 100vm;
} */

/* 头部导航 */
header {
    width: 100 vm;
    height: 110px;
    /* 栅格布局 */
    display: grid;
    padding: 0 20px;
    grid-template-columns: 1fr 2fr;
    align-items: center;
    position: relative;
    z-index: 200;
}

.logo {

    font-size: 24px;
    font-weight: 600;
    color: var(--text-color-lightest);
    /* width:80%; */

}

.vader {
    height: 50px;
    width: 40%;
    position: relative;
    top: 0;
    left: 60px;
    background-image: url('../images/text-logo-b.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}
.vader2 {
    background-image: url('../images/text-logo-h.png');
}

.nav-text {
    color: #646464;
}

header nav {
    justify-self: end;
    text-align: right;
    display: flex;
    justify-content: space-between;
    /*height: 38vh !important;*/
}
.nav-active{
    color: #4866FF;
    border-bottom: 3px solid #4866FF;
}

header nav i {
    color: var(--text-color-lightest);
}

header nav a {
    color: var(--text-color-lightest);
    text-decoration: none;
    margin: 0 24px;
}

header .burger {
    display: none;
}

header.sticky {
    top: 0;
    position: fixed;
    background-color: white;
    box-shadow: 0 0 18px rgba(0, 0, 0, 0.2);
    animation: dropDown 0.5s ease-in-out forwards;
    z-index: 1000;
}

header.sticky .log,
header.sticky nav a,
header.sticky nav i {
    color: var(--text-color-darker);

}
header.sticky .vader{
    background-image: url('../images/text-logo-h.png');
}

@keyframes dropDown {
    from {
        transform: translateY(-100px);
    }
    to {
        transform: translateY(0);
    }
}

.glide {
    position: relative;
    top: -120px;
    z-index: 50;
}

.glide__slide img,
.glide__slide video {
    width: 100vw;
    height: 100vh;
    object-fit: cover;
}

.slide-caption {
    position: absolute;
    z-index: 70;
    color: #fff;
    /*text-align: center;*/
    max-width: 60vw;
    left: 6%;
}

.glide__slide {
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide-caption h1 {
    font-size: 54px;
    font-weight: 600;
}

.slide-caption h3 {
    font-size: 24px;
    margin: 48px 0;
}

.slide-caption > * {
    opacity: 0;
}

.backdrop {
    background: var(--backdrop-color);
    z-index: 60;
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    opacity: 0.2;
}

.explore-btn {
    padding: 14px 32px;
    background-color: var(--primary-color);
    border: 0;
    border-radius: 4px;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    outline: none;
}


/* 内容区域通用样式 */

.content-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

section {
    display: grid;
    justify-items: center;
    max-width: 1200px;
    padding: 0 80px;
}

section-bg {
    position: relative;
}

.section-bg::before {
    content: "";
    display: block;
    position: absolute;
    background-color: #f9fbfb;
    width: 100vw;
    /*height: 100%;*/
    z-index: -1;

}

.title1 {
    font-size: 34px;
    color: var(--text-color-darker);
}

.title1::after {
    content: "";
    display: block;
    width: 80%;
    height: 4px;
    background-color: var(--primary-color);
    margin-top: 14px;
    transform: translateX(10%);
}

.intro {
    margin: 20px 0 60px 0;
    font-size: 20px;
    color: var(--text-color-dark-gray);
    text-align: center;
}

.intro2 {
    margin-bottom: 0;
}

.intro i {
    color: var(--primary-color);
    vertical-align: -2px;
    font-weight: 600;
    font-style: normal;
}

/* 关于我们 */
.about-us {
    padding: 72px 0 72px 0;
    cursor: pointer;
}

/*.features{*/
/*    display:grid;*/
/*    grid-template-columns: repeat(3,1fr);*/
/*    grid-template-rows: repeat(2,180px);*/
/*    column-gap: 5vw;*/
/*}*/
.features {
    /*width: 100vw;*/
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(1, 300px);
    column-gap: 2vw;
}

.feature {
    display: grid;
    grid-template-areas: 
        "icon title"
        "icon content";
    grid-template-columns:60px 1fr;
    grid-template-rows: 1fr 3fr;
    padding: 1rem 1.5rem;
    border-radius: 5px;
    box-shadow: 2px 2px 4px rgba(0,0,0,.1);
}
/*.feature:hover{*/
/*    position: relative;*/
/*    transform: translateY(100px);*/
/*}*/

.feature i.iconfont {
    grid-area: icon;
    font-size: 34px;
    color: var(--primary-color);
    margin-top: 19px;
}

.feature-title {
    grid-area: title;
    font-size: 18px;
    color: var(--text-color-darker);
    margin-bottom: 8px;
}

.feature-content {
    grid-area: content;
    color: var(--text-color-gray);
    margin-top: 8px;
    /*overflow: hidden;*/
    /*height: 140px;*/
}

/* 成功案例 */
.showcases {
    max-width: unset;
    padding: 0;
}

.filter-btns {
    margin-top: 54px;
    margin-bottom: 38px;
}

.filter-btn {
    margin: 0 7px;
    background-color: var(--secondary-color);
    border: 0;
    color: var(--text-color-dark-gray);
    padding: 8px 18px;
    border-radius: 4px;
    cursor: pointer;
    transition: 0.4s;
}

.filter-btn:focus, .filter-btns:active {
    outline: none;
}

.filter-btn.active, .filter-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

.showcases .cases {
    width: 100vw;
}

.showcases .case-item {
    width: 25vw;
    height: 20vw;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.showcases .case-item:hover {
    position: absolute;
    transform: scale(1.07, 1.07);
    transition: all .5s linear;
    z-index: 999;
}

.showcases .case-item:not(:hover) {
    transition: all .3s linear;
}

.showcases .case-item:hover .plan-text {
    color: rgba(255, 255, 255, 0.76);
    transition: all .5s linear;
}

.showcases .case-item:not(:hover) .plan-text {
    transition: all .3s linear;
}

.case-item img {
    height: 100%;
    object-fit: cover;
}

/* 服务流程 */

.services {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(1, 240px);
    column-gap: 28px;
    row-gap: 24px;
}

.service-item {
    display: grid;
    grid-template-areas: 
        "icon title"
        "icon content";
    grid-template-columns: 70px 1fr;
    grid-template-rows: 1fr 3fr;
    padding: 24px;
    box-shadow: 0 0 18px rgba(0, 0, 0, 0.06);
}

.service-item i.fas {
    grid-area: icon;
    font-size: 34px;
    color: var(--primary-color);
    padding-top: 20px;
}

.service-item .service-title {
    grid-area: "title";
    color: var(--text-color-darker);
    font-size: 24px;
}

.service-item .service-content {
    grid-area: content;
    color: var(--text-color-gray);
    line-height: 30px;
    font-size: 16px;
    margin-top: 8px;
}

.map {
    padding-top: 120px;
    width: 80vw;
}

#echart {
    margin-bottom: 50px;
    width: 100%;
    height: 60vh;
}

.cmap {
    margin: 80px;
}

/* 团队介绍 */

.team-intro {
    margin: 48px 0;
    padding-top: 62px;
    padding-bottom: 52px;
    max-width: 1900px;
}

.team-members {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    column-gap: 25px;
    margin-top: 86px;
}

.team-member {
    background-color: white;
    /*box-shadow: 0 0 24 rgba(0, 0, 0, 0.2);*/
    text-align: center;
    padding-bottom: 28px;
    transition: 0.4s;
    display: grid;
    justify-items: center;
}

.team-member:hover {
    transform: translateY(-20px) scale(1.05);
    box-shadow: 0 0 36px rgba(0, 0, 0, 0.1);
}

.photo {
    overflow: hidden;
}

.photo img {
    width: 100%;
    height: 264px;
    object-fit: cover;
    object-position: top center;
}

.team-member .name {
    margin-top: 24px;
    font-size: 18px;
    font-weight: 500;
    color: var(--text-color-darker);
}

.team-member .position {
    color: var(--text-color-dark-gray);
    width: 180px;
    margin-top: 12px;
    margin-bottom: 18px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.social-links {
    width: 100%;
    max-width: 200px;
    display: flex;
    justify-content: space-between;
    padding: 0 42px;
}

.social-links li {
    list-style: none;
}

.social-links li a {
    color: var(--text-color-darker);
    font-size: 24px;
    text-decoration: none;
}


/* 数据部分 */

.data-section {
    margin-bottom: 60px;
    max-width: 100%;
    width: 100vw;
    height: 255px;
    background-image: url(../images/index-banner.jpg);
    background-size: cover;
    background-position: center;

    display: grid;
    grid-template-columns: repeat(4, minmax(auto, 220px));
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 20;
}

.data-section::before {
    content: "";
    display: block;
    position: absolute;
    background-color: var(--backdrop-color);
    width: 100%;
    height: 100%;
    z-index: 1;
}

.data-piece {
    width: 250px;
    display: grid;
    grid-template-rows: repeat(3, 1fr);
    justify-items: center;
    color: white;
    position: relative;
    z-index: 40;
}

.data-piece i.iconfont {
    font-size: 50px;
}

.data-piece .num {
    font-size: 35px;
    font-weight: 500;
}

.data-piece .data-desc {
    font-size: 20px;
    font-weight: 400;
}

footer {
    margin-top: 124px;
    background-color: #1F1F1F;
    padding-top: 72px;
    padding-bottom: 24px;
}
/*.footer{*/
/*    display: flex;*/
/*    justify-content: center;*/
/*    !*padding: 0 10%;*!*/
/*}*/
.file{
    text-align: center;
}
.footer-logo{
    color: #fff;
    /*margin-right: 50px;*/
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.ewm{
    width: 100%;
    margin: 30px 0 10px 0;
}
.ewm-text{
    text-align: center;
}

/* 底部菜单 */
.footer-menus {
    width: 100%;
    max-width: 1180px;
    display: grid;
    /* 5列布局 */
    grid-template-columns: 2fr repeat(4, 1fr);
    padding: 0 80px;
    position: relative;
}

/* 导航菜单，靠右对齐 */
.footer-menu {
    justify-self: end;
}

/*修改底部*/
footer{
    width: 100vw;
    margin: 5rem 0 0 0;
    background-color: #1F1F1F;
}
footer .top-box{
    color: #fff;
    margin-bottom: 1rem;
}
footer .top-box{
    display: flex;
    align-items: center;
    font-size: 1.2rem;
}
footer .top-box p{
    margin: 0;
}
footer .top-box .time{
    color: #9b9b9b;
    font-size: 1rem;
}
footer .top-box .iconfont{
    font-size: 2.5rem;
    margin-right: 1rem;
}

.footer-main{
    display: flex;
    flex-direction: column;
}
.footer-main .main-top{
    padding-bottom: 1rem;
    border-bottom: 1px solid #5c636a;
}
.footer-main .main-bottom{
    padding-top: 1rem;
    color: #5c636a;
}

/* 一级菜单 */
.menu-title {
    font-size: 20px;
    color: white;
    font-weight: 600;
    margin-bottom: 20px;
}

/* 联系我们，靠左对齐 */
.contact-us {
    justify-self: start;
    color: var(--text-color-lightest);
}

/* 联系我们，文字 */
.contact-us p:not(:first-child) {
    padding-bottom: 16px;
}

/* 菜单项 */
.menu-items{
    padding-left: 0;
}
.menu-items li {
    list-style: none;
    padding-bottom: 8px;
}

/* 菜单链接 */
.menu-items li a {
    text-decoration: none;
    font-weight: 300;
    color: var(--text-color-lightest);
}

.menu-items li a:hover {
    color: #fff;
}

/* 备案信息 */
.icp-info {
    margin-top: 24px;
    margin-bottom: 16px;
}

/* 备案信息，版权信息 */
.icp-info,
.rights {
    /* 占满整行，-1代表最后一个编号 */
    grid-column: 1 / -1;
    /* 居中对齐 */
    justify-self: center;
    color: #9a9a9a;
    font-size: 14px;
}

.scrollToTop {
    display: none;
}

.scrollToTop a {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    position: fixed;
    bottom: 60px;
    right: 30px;
    z-index: 300;
}

/* 自适应，小于1100象素时 */
@media (max-width: 1100px) {
    /* 导航设置为不可见，点击折叠按钮显示全屏导航 */
    header nav {
        display: none;
    }

    /* 头部平分两列布局 */
    header {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 折叠菜单样式，显示出来 */
    header .burger {
        display: block;
        justify-self: center;
        cursor: pointer;
        position: relative;
        width: 20px;
        height: 6px;
    }

    /* 折叠按钮线条样式 */
    .burger-line1,
    .burger-line2,
    .burger-line3 {
        width: 20px;
        height: 2px;
        background-color: var(--text-color-lightest);
        /* position: relative; */
    }

    /* 上移第一条线 */
    .burger-line1 {
        position: absolute;
        top: -6px;
    }

    /* 下移第三条线 */
    .burger-line3 {
        position: absolute;
        top: 6px;
    }

    /* 全屏导航展开时，折叠按钮设置为深色 */
    header.open .burger-line1,
    header.open .burger-line2,
    header.open .burger-line3,
    header.sticky .burger-line1,
    header.sticky .burger-line2,
    header.sticky .burger-line3 {
        background-color: var(--text-color-darker);
        transition: 0.4s ease;
    }

    /* 全屏导航显示时，折叠按钮第一条线样式 */
    header.open .burger-line1 {
        transform: rotate(45deg) translate(3px, 5px);
    }

    /* 全屏导航显示时，折叠按钮第二条线样式 */
    header.open .burger-line2 {
        transform: translateX(5px);
        opacity: 0;
    }

    /* 全屏导航显示时，折叠按钮第三条线样式 */
    header.open .burger-line3 {
        transform: rotate(-45deg) translate(3px, -5px);
    }

    /* 全屏导航显示时，logo样式 */
    header.open .logo {
        color: var(--text-color-darker);
        z-index: 40;
    }

    /* 全屏导航显示时，导航菜单样式 */
    header.open nav {
        display: grid;
        /* 每行高度为内容的高度，不设置会平分全屏高度 */
        grid-auto-rows: max-content;
        /* 菜单项靠右对齐 */
        justify-self: end;
        justify-items: end;
        position: absolute;
        top: 0;
        left: 0;
        background: white;
        width: 100vw;
        height: 100vh;
        padding: 0 40px;
        opacity: 0;
        /* 下滑效果 */
        animation: slideDown 0.6s ease-out forwards;
    }

    /* 全屏导航显示时，导航菜单项样式和动画 */
    header.open nav > * {
        margin: 4px 0;
        font-size: 18px;
        color: var(--text-color-darker);
        opacity: 0;
        animation: showMenu 0.5s linear forwards 0.4s;
    }

    /* 搜索按钮 */
    header.open nav > i.fas {
        margin-top: 10px;
        color: var(--text-color-darker)
    }

    /* 导航下滑动画 */
    @keyframes slideDown {
        from {
            height: 0;
            opacity: 0;
        }
        to {
            height: 100vh;
            padding-top: 80px;
            opacity: 1;
        }
    }

    /* 菜单项动画 */
    @keyframes showMenu {
        from {
            opacity: 0;
            transform: translateY(-1vh);
        }
        to {
            opacity: 1;
        }
    }

    /* 缩小业务流程标题字体 */
    .service-item .service-title {
        font-size: 20px;
    }

    /* 缩小业务流程内容字体和行距 */
    .service-item .service-content {
        font-size: 14px;
        line-height: 24px;
    }

    /* 团队成员改为两列 */
    .team-members {
        grid-template-columns: repeat(2, 1fr);
        column-gap: 6vw;
        row-gap: 36px;
    }

    /* 公司动态改为两列 */
    .activities {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 36px;
    }
}

/* 小于992象素时 */
@media (max-width: 992px) {
    /* 轮播标题字号缩小  */
    .slide-caption h1 {
        font-size: 48px;
    }

    .slide-caption h3 {
        font-size: 18px;
    }

    /* 关于我们和业务流程设置为两列布局 */
    .features,
    .services {
        grid-template-columns: repeat(2, 1fr);
        /* 取消两行布局 */
        grid-template-rows: unset;
    }

    /* 数据部分设置为两列布局 */
    .data-section {
        /* 每列最小宽度为200象素，最大为自动 */
        grid-template-columns: repeat(2, minmax(200px, auto));
        row-gap: 24px;
        height: auto;
        padding: 24px 0;
        background-size: 200%;
    }

    /* 成功案例图片设置为3列 */
    .showcases .case-item {
        width: calc(100vw / 3);
    }
}

/* 小于768象素时 */
@media (max-width: 768px) {
    /* 区域的左右内边距设置为40象素 */
    section,
    .footer-menus {
        padding: 0 40px;
    }

    /* 关于我们和业务流程设置为1列 */
    .features,
    .services {
        grid-template-columns: 1fr;
    }

    /* 团队成员设置为1列 */
    .team-members {
        grid-template-columns: minmax(200px, 400px);
        /* column-gap: 6vw;
        row-gap: 36px; */
    }

    /* 数据部分设置为1列 */
    .data-section {
        grid-template-columns: 1fr;
        /* 增加背景尺寸 */
        background-size: 320%;
    }

    /* 公司动态设置为1列 */
    .activities {
        grid-template-columns: 1fr;
        row-gap: 36px;
    }

    /* 成功案例图片显示为两列 */
    .showcases .case-item {
        width: calc(100vw / 2);
        height: 30vw;
    }

    /* 底部菜单设置为3列 */
    .footer-menus {
        grid-template-columns: 2fr repeat(2, 1fr);
        row-gap: 24px;
    }

    /* 联系我们占前两列 */
    .contact-us {
        grid-row: 1 / 3;
    }

    /* 菜单文字靠右对齐 */
    .footer-menu {
        text-align: right;
    }
}

/* 小于576象素 */
@media (max-width: 576px) {
    /* 缩小轮播标题文字，探索更多按钮文字 */
    .slide-caption h1 {
        font-size: 28px;
    }

    .slide-caption h3 {
        font-size: 14px;
    }

    .explore-btn {
        padding: 8px 18px;
        font-size: 14px;
    }

    /* 成功案例显示为1列 */
    /*.showcases .case-item {*/
    /*    width: 100vw;*/
    /*    height: 60vw;*/
    /*}*/

    /* 底部菜单显示为1列 */
    .footer-menus {
        grid-template-columns: 3fr;
        font-size: 12px !important;
        /* row-gap: 24px; */
    }

    /* 底部菜单左对齐 */
    .footer-menu {
        justify-self: start;
        text-align: left;
    }
    .title1,.plan-title{
        font-size: 20px !important;
    }
    .intro{
        font-size: 16px;
    }
    .feature{
        margin: 20px 30px;
    }
    #echart{
        height: 20vh;
    }
    .map{
        padding-top: 40px;
    }
    .about-us{
        padding: 0;
    }
    .team-intro{
    padding: 0;
    }
    .team-members{
        margin-top: 20px;
    }
}