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

.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;
}
a {
    color: inherit;
    text-decoration: none;
}
.top {
    background-image: url("./../images/online/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: 7.04rem;
    margin-right: 1rem;
}
.top_main_left_header{
    font-weight: bold;
    font-size: 0.58rem;
    color: #060F3F;
}
.top_main_left_title{
    font-weight: bold;
    font-size: 0.32rem;
    color: #060F3F;
    margin-top: .36rem;
    margin-bottom: .36rem;
}
.top_main_left_desc{
    font-weight: 500;
    font-size: 0.3rem;
    color: #060F3F;
    letter-spacing: 1px;
}
.top_main{
    display: flex;
    justify-content: center;
    margin-top: .2rem;
    align-items: center;
    margin-bottom: .5rem;
}
.top_main_right{
    width: 9.65rem;
    height: 6.03rem;
    background-image: url("./../images/online/Group45.png");
    background-size: 100% 100%;
}
.product_header{
    text-align: center;
    font-weight: bold;
    font-size: 0.58rem;
    color: #060F3F;
    margin-top: 1.3rem;
    margin-bottom: .82rem;
}
.product_item1_header{
    font-weight: bold;
    font-size: 0.48rem;
    color: #060F3F;
}
.product_item1_desc{
    font-weight: 500;
    font-size: 0.24rem;
    color: #060F3F;
    line-height: 0.39rem;
    letter-spacing: 1px;
    margin-top: .26rem;
    margin-bottom: .42rem;
}
.product_item1_title{
    font-weight: bold;
    font-size: 0.32rem;
    color: #060F3F;
}
.product_item1_left{
    width: 6.64rem;
    margin-right: .69rem;
}
.product_item1_left > div,.product_item2_right > 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,.product_item2,.product_item3{
    padding:0 1.5rem;
    display: flex;
    justify-content: center;
    margin-bottom: 2.5rem;
    align-items: center;
}

.product_item1 > div,.product_item2 > div,.product_item3 >div{
    flex: 1;
}

.product_item2_left img{
    width: 7.65rem;
    height: 6.13rem;
}
.product_item2_right{

}
.product_item2_desc{
    font-weight: 500;
    font-size: 0.24rem;
    color: #060F3F;
    line-height: 0.39rem;
    letter-spacing: 1px;
    margin-top: .26rem;
    margin-bottom: .42rem;
}
.product_item3_desc{
    font-weight: 500;
    font-size: 0.24rem;
    color: #060F3F;
    line-height: 0.39rem;
    letter-spacing: 1px;
    margin-top: .26rem;
    margin-bottom: .42rem;
}


.product_item3_right img{
    width: 8.11rem;
    height: 6.69rem;
}



.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 product sections */
.product_item1, .product_item2, .product_item3 {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

/* From left */
.product_item1, .product_item3 {
    transform: translateX(-50px);
}

/* From right */
.product_item2 {
    transform: translateX(50px);
}

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