html, body {
    margin: 0;
    padding: 0;
    font-size: 100px;
}

a {
    color: inherit;
    text-decoration: none;
}

.body {
    min-width: 1200px;
    font-family: PingFang SC;
    font-weight: 400;
}
.top_pic {
    position: fixed;
    right: 0;
    top: 50%;
    z-index: 9;
}

.chat_icon {
    width: 1.24rem;
    height: 1.24rem;
}

.top_pic:hover >  .er {
    display: inline-block;
}

.top_pic .er {
    display: none;
    background-image: url("./../images/home/Group14.png");
    background-size: 100% 100%;
    width: 1.85rem;
    height: 1.85rem;
    position: absolute;
    right: 1.2rem;
    bottom: -11px;
}

.top_pic .er img {
    width: 1.27rem;
    height: 1.54rem;
    margin: 12px 17px;
}
.top {
    background-image: url("./../images/robot/Ellipse2.png");
    background-size: 100% 100%;
    padding: .1px;
    font-size: .22rem;
}
.login{
    width: 0.88rem;
    height: 0.6rem;
    background: #5746ED;
    border-radius: 0.3rem 0.3rem 0.3rem 0.3rem;
    font-weight: 500;
    font-size: 0.22rem;
    color: #FFFFFF;
    display: inline-block;
    text-align: center;
    line-height: .6rem;
}
.top_header {
    height: 1rem;
    display: flex;
}

.top_header > div {
    flex: 1;
}

.top_header_left {

}

.top_header_center {
    justify-content: space-around;
    display: flex;
}

.top_header_center_item:hover {
    color: #5A42EC;
}

.top_header_center > div {
    line-height: 1rem;
    width: 1.8rem;
    text-align: center;
    cursor: pointer;
}

.top_produce {
    display: none;
    position: absolute;
    top: .8rem;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    z-index: 999;
}

.top_header_right {
    display: flex;
    justify-content: flex-end;
}

.top_header_right > div {
    line-height: 1rem;
    margin-right: .4rem;
}

.top_header_right img {
    display: inline-block;
    width: .27rem;
    height: .27rem;
    vertical-align: sub;
}

div.top_produce {
    display: none;
    position: fixed;
    height: 6.68rem;
    background: white;
    width: 100%;
    top: 1rem;
}

.top_produce > div {
    margin: 0.41rem .25rem 0.79rem;
    display: flex;
    height: 5.48rem;
}

.top_produce_left,
.top_produce_center,
.top_produce_right {
    flex: 1;
    width: 33.33%;
}

.top_produce_center {
    border-left: 1px solid gainsboro;
}

.top_produce_right {
    border-left: 1px solid gainsboro;
}

.top_produce_left:hover,.top_produce_center:hover,.top_produce_right:hover{
    background: linear-gradient( 180deg, #EFEFFF 0%, #E8F5FF 100%);
}

/* 价格和方案悬浮菜单样式 */
.top_pricing {
    display: none;
    position: fixed;
    background: white;
    width: 100%;
    top: 1rem;
    left: 0;
    z-index: 999;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.top_pricing > div {
    padding: 0.6rem 0.6rem 0.8rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.top_pricing_item {
    width: 10rem;
    padding: 0.3rem 0.5rem;
    transition: background 0.3s ease;
}

.top_pricing_item:hover {
    background: linear-gradient(180deg, #EFEFFF 0%, #E8F5FF 100%);
}

.top_pricing_header {
    font-size: 0.3rem;
    color: #0C0C0C;
    border-bottom: 2px solid #666666;
    display: inline-block;
    line-height: .6rem;
    cursor: pointer;
    margin-bottom: .3rem;
}

.top_pricing_header a {
    color: #0C0C0C;
    text-decoration: none;
}

.top_pricing_header:hover a {
    color: #5538E9;
}

.top_pricing_desc {
    font-size: 0.18rem;
    color: #999999;
    line-height: 0.32rem;
}

.top_produce_header {
    font-size: 0.34rem;
    color: #0C0C0C;
    border-bottom: 2px solid #666666;;
    display: inline-block;
    line-height: .7rem;
    cursor: pointer;
    margin-bottom: .6rem;
}

.top_produce > div > div {
    padding: .2rem .2rem .1rem;
}

.top_produce_header:hover {
    color: #5538E9;
}

.top_produce_list {
    display: flex;
    justify-content: space-between;
}

.top_produce_item {
    width: 2.65rem;
    font-size: 0.18rem;
    color: #999999;
    line-height: 0.24rem;
}

.product_item_title {
    font-size: .24rem;
    color: #0c0c0c;
    margin-bottom: .16rem;
}

.product_item_desc {
    font-size: .18rem;
    color: #999999;
    margin-bottom: .6rem;
}

.top_main_left {
    width: 8.2rem;
    margin-right: .25rem;
}

.top_main_left_header {
    font-weight: bold;
    font-size: 0.24rem;
    color: #060F3F;
}
.top_main_left_label{
    font-weight: bold;
    font-size: 0.58rem;
    margin-top: .16rem;
    margin-bottom: .36rem;
    color: #060F3F;
}

.top_main_left_title {
    font-weight: bold;
    font-size: 0.32rem;
    color: #060F3F;
}

.top_main_left_desc {
    font-weight: 500;
    font-size: 0.3rem;
    color: #060F3F;
    letter-spacing: 1px;
    width: 5.82rem;
    margin-top: .36rem;
}

.top_main {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

.top_main_right {
    width: 8.24rem;
    height: 5.04rem;
    background-image: url("./../images/robot/Group15.png");
    background-size: 100% 100%;
}

.product_header {
    font-weight: 600;
    text-align: center;
    font-size: 0.68rem;
    color: #593CE9;
    margin-top: 1.87rem;
    margin-bottom: 2.2rem;
}

.product_item1_header {
    font-weight: 600;
    font-size: 0.52rem;
    color: #000000;
}

.product_item1_desc {
    font-weight: 500;
    font-size: 0.26rem;
    color: #060F3F;
    margin: .3rem auto;
    letter-spacing: 1px;
    width: 3.62rem;
}

.product_item1_title {
    font-weight: 500;
    font-size: 0.3rem;
    color: #000000;
}

.product_item1_left > div, .product_item3_left > div {
    margin: .1rem 1rem;
    min-width: 6.8rem;
}

.product_item1_right {
    background-image: url("./../images/online/bg_item_1.294effcb@2x.png");
    background-size: 100% 100%;
    width: 7.85rem;
    height: 4.56rem;
}

.product_item1 {
    display: flex;
    justify-content: center;
    align-items: center;
    padding:1rem;
    margin-top: .5rem;
}
.product_item2 {
    display: flex;
    justify-content: space-between;
    margin-top: .5rem;
    background-image: url("./../images/robot/Ellipse3.png");
    background-size: 100% 100%;
    padding:1rem 2.5rem;
    height: 8.2rem;
}
.product_item2_item img{
    width: .41rem;
    height: .41rem;
    margin-right: 5px;
}
.product_item2_item_desc img{
    width: .27rem;
    height: .27rem;
    vertical-align: bottom;
}
.product_item1 > div{
    width: 4.87rem;
    height: 5.8rem;
    background: #FFFCEF;
    box-shadow: 0rem 0.01rem 0.27rem -0.02rem rgba(0,0,0,0.11);
    border-radius: 0.56rem 0.56rem 0.56rem 0.56rem;
    padding: .1px;
}
.product_item1 > div:nth-child(2){
    background: #F7FFFC;
    margin: 0 .62rem;
}
.product_item1 > div:nth-child(3){
    background: #F2F8FF;
}

.product_item1 img {
    width: .72rem;
    height: .72rem;
    display: block;
    margin: 0 auto;
}

.product_item1_title {
    text-align: center;
    margin-bottom: .46rem;
    margin-top: .85rem;
    font-weight: 500;
    font-size: 0.4rem;
    color: #060F3F;
    letter-spacing: 2px;
}

.product_item1_border {
    height: 1px;
    background-color: #696969;
}

.product_item2 > div{
    width: 5.2rem;
}
.product_item2_header{
    font-weight: bold;
    font-size: 0.58rem;
    color: #060F3F;
    margin-bottom: .7rem;
    margin-top: .4rem;
}
.product_item2_item{
    display: flex;
    align-items: center;
    margin-bottom: .58rem;
}
.product_item2_item_title{
    font-weight: bold;
    font-size: 0.32rem;
    color: #060F3F;
}
.product_item2_item_desc{
    font-weight: bold;
    font-size: 0.2rem;
    color: #060F3F;
}

.product_item2_left img {
    width:.62rem;
    height: .62rem;
}
.product_item2_left{

}

.product_item2_desc {
    margin: 0.81rem 0 .3rem;
    font-size: 0.2rem;
    color: #000000;
    font-weight: 300;
}

.product_item3_title {
    margin-top: -1rem;
    margin-bottom: .36rem;
    text-align: center;

    font-weight: bold;
    font-size: 0.58rem;
    color: #060F3F;
}
.product_item3_desc {
    margin: 0.5rem 0 .8rem;
    text-align: center;
    font-weight: 500;
    font-size: 0.3rem;
    color: #060F3F;
    letter-spacing: 1px;
}

.product_item3_list_first_second{
    margin-top: .92rem;
    margin-bottom: .97rem;
}
.product_item3_list{
    display: flex;
    justify-content: space-around;
    margin-top: 1.57rem;
    padding:0 1.5rem;
}
.product_item3_list >div{
    width: 4rem;
}
.product_item3_list >div img{
    width: .25rem;
    height: .25rem;
    vertical-align: middle;
    margin-left: .5rem;
}
.product_item3_list_second_item{
    margin-top: .2rem;
    line-height: .67rem;
    width: 4.5rem;
    height: 0.67rem;
    background: linear-gradient( 90deg, #FFD5EC 0%, #D1CEFF 100%);
    border-radius: 0.34rem 0.34rem 0.34rem 0.34rem;

    font-weight: 500;
    font-size: 0.2rem;
    color: #060F3F;
}
.product_item3_list_first_title{
    font-weight: 600;
    font-size: 0.56rem;
    color: #593CE9;
    text-align: center;
}
.product_item3_list_first_desc{
    font-weight: 400;
    font-size: 0.26rem;
    color: #161616;
    margin-top: .1rem;
    text-align: center;
}
.product_item4_title{
    font-weight: 600;
    font-size: 0.56rem;
    color: #020202;
    text-align: center;
    margin: 2.2rem auto .3rem;
}
.product_item5{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    background-image: url("./../images/robot/Group17.png");
    background-size: 100% 100%;
    padding-top: .6rem;
    padding-bottom: 1.5rem;
}
.product_item5_item{
    background: #FFFFFF;
    box-shadow: 0rem 0rem 1rem 1rem rgba(217,223,255,0.24);
    border-radius: 0.47rem;
    width: 5.27rem;
    margin: .56rem .66rem;
    padding:.8rem .8rem .5rem;
}
.product_item5_item_title{
    font-weight: 600;
    font-size: 0.38rem;
    color: #040404;
}
.product_item5_item_desc{
    font-weight: 100;
    font-size: 0.24rem;
    color: #161616;
    margin-top: .47rem;
}
.product_item6{
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding:1.38rem;
    margin-top: .7rem;
}
.product_item6_left{
    background-image: url("./../images/robot/Group16.png");
    background-size: 100% 100%;
    width: 7.86rem;
    height: 5.18rem;
}
.product_item6_right{
    margin-left: 1.5rem;
    width: 7rem;
}
.product_item6_right_header{
    font-weight: 600;
    font-size: 0.52rem;
    color: #020202;
    line-height: 0.76rem;
}
.product_item6_right_desc{
    font-weight: 500;
    font-size: 0.24rem;
    color: #060F3F;
    line-height: 0.39rem;
    letter-spacing: 1px;
    width: 4.06rem;
    margin-top: .26rem;
    margin-bottom: .42rem;
}
.product_item6_right_title{
    font-weight: bold;
    font-size: 0.32rem;
    color: #060F3F;
}

.forth {
    background: linear-gradient(180deg, #EFFEFF 0%, #F6EDFF 100%);
    height: 6.98rem;
    padding: .1px;
}

.forth_title {
    font-weight: 400;
    font-size: 0.74rem;
    color: #000000;
    text-align: center;
    margin-bottom: .4rem;
    margin-top: 2.5rem;
}

.forth_desc {
    font-weight: 400;
    font-size: 0.28rem;
    color: #000000;
    text-align: center;
}

.forth_btn {
    width: 2.37rem;
    height: 0.92rem;
    background: #5046E5;
    border-radius: 0.41rem;
    border: 0.01px solid #4467FF;
    color: #FFFFFF;
    line-height: 0.92rem;
    text-align: center;
    font-size: .28rem;
    margin: .6rem auto 2rem;
}

.footer {
    display: flex;
    justify-content: space-evenly;
    font-size: .24rem;
    height: 5.13rem;
}

.footer_title {
    color: #000000;
    margin-top: .85rem;
}

.footer_item {
    line-height: 0.2rem;
    margin-top: 0.4rem;
    font-weight: 500;
    font-size: 0.22rem;
    color: #3F3C78;
}

.top_header_fixed {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: white;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-top: 0;
}

/* --- Animations Application --- */

/* Set initial state for elements */
.product_item1 > div,
.product_item2,
.product_item3,
.product_item5_item,
.product_item6 {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out, box-shadow 0.3s ease;
}

/* The .visible class will be added by JavaScript to trigger the transition */
.product_item1 > div.visible,
.product_item2.visible,
.product_item3.visible,
.product_item5_item.visible,
.product_item6.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Add a hover effect for interactivity on cards */
.product_item1 > div:hover,
.product_item5_item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Stagger the animation for a nicer effect */
.product_item1 > div:nth-child(1) { transition-delay: 0.1s; }
.product_item1 > div:nth-child(2) { transition-delay: 0.2s; }
.product_item1 > div:nth-child(3) { transition-delay: 0.3s; }

.product_item5_item:nth-child(1) { transition-delay: 0.1s; }
.product_item5_item:nth-child(2) { transition-delay: 0.2s; }
.product_item5_item:nth-child(3) { transition-delay: 0.3s; }
.product_item5_item:nth-child(4) { transition-delay: 0.4s; }