html,body,ul,h1,h2,h3,h4,h5{
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}
.container{
    max-width: 1200px;
    margin: 0 auto;
}

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

ul li{
    list-style: none;
}

header{
    background-color: #fff;
    height: 80px;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    /**底部阴影**/
    box-shadow: 0 0 100px rgba(100, 100, 100, 0.1);
}
.header-fill{
    height: 80px;
}
.logo{
    width: 260px;
    height: 70px;
}
.logo-img{
    width: 100%;
    height: 100%;
}

header .container{
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-direction: row;
}

header .menu ul{
    display: flex;
    justify-content: flex-end;
    align-items: center;
    flex-direction: row;
    gap: 1px;
    height: 80px;
}

header .menu ul li a{
    display: block;
    height: 80px;
    line-height: 80px;
    padding: 0 20px;
    /**逐渐加深*/
    transition: all 1s ease;
    text-align: center;
}

header .menu ul li a.active{
    background-color: rgb(48, 93, 195);
    color: #fff;
}

header .menu ul li a:hover{
    background-color: rgb(48, 93, 195);
    color: #fff;
}

.text-tertiary{
    color: rgb(199, 199, 199);
}

.text-weight-light{
    font-weight: 200;
}
.text-weight-medium{
    font-weight: 500;
}
.text-white{
    color: #fff;
}
.text-gray{
    color: rgb(155, 155, 155);
}

.text-normal{
    color: rgb(100, 100, 100);
}

.line{
    height: 1px;
    background-color: rgb(222, 222, 222);
    margin: auto auto;
}

.line-vertical{
    width: 1px;
    background-color: rgb(222, 222, 222);
    margin: auto auto;
}

.btn{
    text-decoration: none;
    padding: 10px 16px;
    cursor: pointer;
    font-size: 0.85rem;
}

.btn-normal{
    background-color: #fff;
    border: 1px solid rgb(235, 235, 235);
    color: rgb(105, 105, 105);
}
.btn-normal:hover{
    background-color: rgb(48, 93, 195);
    border: 1px solid rgb(48, 93, 195);
    color: #fff;
    /**动画**/
    transition: all 1s ease;
}

.btn-dark{
    background-color: rgb(65, 56, 56);
    color: #fff;
}
.btn-dark:hover{
    background-color: rgb(35, 35, 56);
    color: #fff;
    /**动画**/
    transition: all 1s ease;
}
.text-sm{
    font-size: 0.76rem;
}
.text-medium{
    font-size: 0.85rem;
}

.text-xl{
    font-size: 1rem;
}

.text-lg{
    font-size: 1.5rem;
}

.text-center{
    text-align: center;
}
.text-end{
    text-align: right;
}

footer{
    color: #fff;
    background-color: rgb(40, 60, 100);
    padding:10px;
}


.splide {
    width: 100%;
    height: 700px;
}

.splide img {
    width: 100%;
    height: 100%;
    /*cover*/
    object-fit: cover;
}

.adv-area {
    display: flex;
    justify-content: space-between;
    flex-direction: row;
    flex-wrap: nowrap;
    /*向上浮动20px*/
    margin-top: -120px;
    overflow: hidden;
}

.adv-item {
    /**两侧细微渐变**/
    background-color: rgb(48, 93, 195);
    /**阴影**/
    box-shadow: 0 0 100px rgba(200, 200, 200, 0.1);
    width: 100%;
    height: 300px;
    cursor: pointer;
    flex: 1;
}


.adv-card {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.adv-card-icon {
    padding-left: 155px;
    margin-bottom: 20px;
}

.adv-card-data {
    padding: 40px;
    align-items: flex-end;
    display: flex;
    gap: 10px;
}

.adv-card-data-number {
    font-size: 78px;
    font-weight: 400;
    color: #fff;
}

.adv-card-data-unit {
    font-size: 28px;
}

.adv-card .text-content {
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
    width: 180px;
}

.adv-card-data-chinese {
    font-size: 20px;
    margin-bottom: 5px;
    font-weight: 200;
    color: #fff;
}

.adv-card-data-english {
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.9;
    font-weight: 100;
    color: #fff;
}

.product-area {
    text-align: center;
    padding-top: 80px;
}

.product-area-title {
    height: 120px;
    overflow: hidden;
}


.product-list {
    margin-top: 50px;
    display: flex;
    gap: 20px;
    justify-content: flex-start;
    flex-wrap: wrap;
}

.product-item {
    width: 350px;
    height: 450px;
    background-color: #fff;
    cursor: pointer;
   /**阴影**/
    box-shadow: 10px 10px 1px rgba(200, 200, 200, 0.5);
    transform: scale(1);
    /* add this line */
}


/**划过区块动画**/
.product-item:hover {
    /**缩放**/
    transform: scale(1.02) !important;
}

.product-item img {
    width: 100%;
    height: 320px;
    object-fit: cover;
}

.product-item-summary {
    padding: 10px 20px;
    text-align: left;
    /**多余文本省略号**/
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    line-height: 1.5em;
    height: 3.8em;
}



.about-container {
    margin-top: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    /* background-color: rgb(35, 54, 97); */
    height: 600px;
    width: 100%;
}

.about-area {
    height: 450px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-img {
    background-color: #fff;
    width: 600px;
    height: 490px;

}

.about-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-info {
    flex: 1;
    padding: 30px;
    background-color: rgb(48, 93, 195);
    height: 300px;
    text-align: left;
    color: #fff;
}

.about-title {
    color: #fff;
}

.about-summary {
    /**字间距**/
    letter-spacing: 2px;
    /**行间距**/
    line-height: 2.2em;

    /**多余文本省略号**/
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    text-indent: 2rem;
    padding: 20px;
}

.about-text {
    /**字间距**/
    letter-spacing: 2px;
    /**行间距**/
    line-height: 2.2em;
    text-indent: 2rem;
    text-align: left;
}


.about-feature-area {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: row;
    padding: 60px;
    gap: 100px;
    border-bottom: 1px solid #ddd;
}

.about-feature-area-title {
    font-size: 80px;
}




.about-photo-wall {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: row;
    padding: 60px;
    border-bottom: 1px solid #ddd;
}

.about-photo-wall img {
    width: 300px;
    height: auto;
    object-fit: cover;
    margin: 10px
}

/**图片滑过放大**/
.about-photo-wall img:hover {
    transform: scale(2);
    transition: all 0.6s ease-in-out;
}

.main-blue {
    background-color: rgb(48, 93, 195);
    color: #fff ;
}

.main-dark {
    background-color: rgb(40, 60, 100);
}