html,
body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.index-container {
    display: flex;
    flex-direction: column;
    position: relative;
    width: 100%;
    background-color: white;
}

.header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: white;
}

.header-content {
    width: 1440px;
    height: 80px;
    display: flex;
    padding: 0 170px;
    margin: 0 auto;
    box-sizing: border-box;
    justify-content: space-between;
    align-items: center;
}


.tab-list {
    display: flex;
    align-items: center;
    column-gap: 50px;
    position: relative;
}

.tab-item {
    font-size: 16px;
    font-weight: 400;
    color: #222222;
    cursor: pointer;
}

.tab-item-active {
    font-size: 16px;
    font-weight: bold;
    color: #222222;
}

.active-line {
    position: absolute;
    top: 40px;
    left: 5px;
    width: 22px;
    height: 3px;
    background: #222222;
    border-radius: 2px;
}

.banner {
    margin-top: 80px;
    width: 100%;
    height: 576px;
    background: #FED000;
}

.banner-detail {
    width: 1440px;
    height: 576px;
    display: flex;
    box-sizing: border-box;
    padding: 0 170px;
    margin: 0 auto;
}

.banner-text {
    margin-top: 107px;
    display: flex;
    flex-direction: column;
}

.banner-text-title {
    font-size: 49px;
    font-weight: bold;
    color: #222222;
}

.banner-text-content {
    line-height: 27px;
    margin-top: 20px;
    font-size: 16px;
    font-weight: 400;
    color: #222222;
}

.banner-img {
    margin-top: 70px;
    width: 650px;
    height: 410px;
    margin-left: 42px;
}

.menu {
    height: 680px;
    background: #F2F4F5;
    width: 100%;
}

.menu-content {
    width: 1440px;
    padding: 0 192px;
    margin: 0 auto;
    box-sizing: border-box;
}

.menu-title {
    width: 378px;
    height: 111px;
    margin-top: 65px;
    margin-left: 330px;
}

.menu-list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 38px;
    margin-top: 80px;
}

.menu-item {
    width: 144px;
    height: 144px;
}

.product {
    height: 994px;
    background: #222222;
    width: 100%;
}

.product-content {
    width: 1440px;
    padding: 0 170px;
    margin: 0 auto;
    box-sizing: border-box;
}

.product-title {
    width: 378px;
    height: 111px;
    margin-top: 70px;
    margin-left: 352px;
}

.product-detail {
    margin-top: 56px;
    display: flex;
    justify-content: space-between;
}

.product-left {
    margin-top: 74px;
}

.product-left-item {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.product-left-bottom {
    margin-top: 90px;
}

.product-left-title {
    font-size: 32px;
    font-weight: 600;
    color: #FFFFFF;
}

.product-left-desc {
    margin-top: 14px;
    margin-bottom: 20px;
    font-size: 20px;
    font-weight: 400;
    color: #FFFFFF;
}

.product-left-img {
    display: flex;
    column-gap: 12px;
}

.icon_download {
    width: 185px;
    height: 58px;
}

.icon_product {
    width: 556px;
    height: 660px;
}

.footer {
    border-top: 1px solid #535353;
    width: 100%;
    height: 120px;
    background: #222222;
}

.footer-content {
    width: 1440px;
    height: 120px;
    padding: 0 170px;
    margin: 0 auto;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-menu {
    font-size: 14px;
    font-weight: 400;
    color: #FFFFFF;
    cursor: pointer;
}