/* Banner容器 */
.about-banner {
    background: url('../images/about-top-bg.png') no-repeat center;
}
@media screen and (max-width: 768px) {
    .about-banner {
        background: url('../images/about-top-left.jpg') no-repeat center;
    }

}
/*experience*/
.experience-container {
    width: 100%;
    min-height: 712px;
    position: relative;
    background: white;
    border-radius: 32px;
    display: flex;
    overflow: hidden;
    margin-bottom: 64px;
}

/* 左侧区域样式 */
.experience-left {
    position: relative;
    width: 768px;
    /*height: 100%;*/
}

.experience-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-top-left-radius: 32px;
    /* border-top-right-radius: 32px; */
}

.experience-card {
    height: 99px;
    position: absolute;
    right: 0;
    bottom: 73px;
    background: var(--yellow-color);
    border-top-left-radius: 20px;
    border-bottom-left-radius: 20px;
    display: flex;
    align-items: center;
    padding: 25px 61px 25px 28px;
}

.experience-number {
    display: flex;
    align-items: center;
    gap: 4px;
}

.experience-number .number {
    color: white;
    font-family: 'D-DIN-PRO', sans-serif;
    font-weight: 900;
}

.experience-text {
    color: var(--dark-color);
    font-family: 'Basic', sans-serif;
    font-weight: 400;
    margin-left: 16px;
}

/* 右侧区域样式 */
.experience-right {
    flex: 1;
    padding: 82px 82px 82px 64px;
    position: relative;
}

.experience-header {
    margin-bottom: 46px;
}

.company-name {
    color: var(--yellow-color);
    font-family: 'Basic', sans-serif;
    font-weight: 400;
    display: block;
    margin-bottom: 24px;
}

.main-title {
    color: var(--dark-color);
    font-family: 'Basic', sans-serif;
    font-weight: 400;
    margin-bottom: 32px;
    line-height: 1.2;
}

.description {
    color: #666666;
    font-family: 'Basic', sans-serif;
    font-weight: 400;
    line-height: 32px;
}

.feature-list {
    display: flex;
    flex-direction: column;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
}

.feature-item span {
    color: var(--dark-color);
    font-family: 'Basic', sans-serif;
    font-weight: 400;
    line-height: 36px;
}

.check-icon {
    width: 24px;
    height: 24px;
    margin-right: 14px;
}

.quote-icon {
    position: absolute;
    top: 34px;
    right: 34px;
}

/* 响应式设计 */
@media (max-width:1680px) {
    .experience-right{
        padding: 32px 32px 32px 14px;
    }
    .company-name{
        margin-bottom: 14px;
    }
    .main-title{
        font-size: 40px;
        margin-bottom: 12px;
    }
    .experience-header{
        margin-bottom: 20px;
    }
    .feature-item{
        margin-bottom: 16px;
    }
    .description{
        font-size: 20px;
    }
    .feature-item span {
        font-size: 22px;
    }
}
@media (max-width:1480px) {
    .main-title{
        font-size: 32px;
    }
    .quote-icon {
        position: absolute;
        top: 34px;
        right: 10px;
    }
}
@media (max-width:1400px) {
    .quote-icon {
        display: none;
    }
}

@media (max-width: 1366px) {
    .experience-image{
        border-radius: 32px;
    }
    .experience-container {
        flex-direction: column;
        height: auto;
    }
    .experience-card{
        border-radius: 20px;
    }

    .experience-left {
        width: 100%;
    }

    .experience-right {
        padding: 40px;
    }

    .experience-card {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 768px) {
    .main-title {
        font-size: 28px;
        line-height: 46px;
    }

    .experience-card {
        width: 90%;
        height: auto;
        padding: 20px;
    }

    .feature-item span {
        font-size: 18px;
    }
}
/*experience*/


/*line*/
.line-container {
    width: 100%;
    position: relative;
    background: white;
    border-radius: 32px;
    display: flex;
    margin-bottom: 64px;
    overflow: hidden;
}

/* 左侧内容区域 */
.line-left {
    /*max-width: 832px;*/
    flex: 1;
    padding: 36px 0 72px;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.line-header {
    padding: 0 64px 0 70px;
    font-family: 'Basic', sans-serif;
    font-weight: 400;
}

.title-dark {
    color: #002F49;
}

.title-yellow {
    color: var(--yellow-color);
}

/* 产品列表样式 */
.product-list {
    padding: 0 64px 0 34px;
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-top: 46px;
}

.product-item .product-title{
    /*max-width: 734px;*/

    overflow: hidden;
    white-space: nowrap;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis;
}

/* 修改展开项的样式 */
.product-item.expanded {
    margin-bottom: 0;
}

.product-item.expanded .product-header {
    height: 60px;
    background: var(--yellow-color);
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.product-item.expanded .product-title {
    color: #333333;
}

/* 修改产品内容区域的样式 */
.product-content {
    background: #F5F5F5;
    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
    max-height: 0;
    padding: 0 31px 0 36px;
    overflow: hidden;
    opacity: 0;
}

.product-item.expanded .product-content {
    max-height: max-content;
    padding: 20px 31px 20px 36px;
    opacity: 1;
}

.product-content p {
    color: #666666;
    font-size: 16px;
    font-family: 'Roboto', sans-serif;
    line-height: 28px;
    margin: 0;
    height: 140px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
}

/* 折叠项样式 */
.product-header {
    background: #F5F5F5;
    border-radius: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 17px 16px 36px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-title {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    color: #333333;
}

.arrow-icon {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.arrow-icon img {
    width: 26px;
    height: 26px;
}

/* 右侧图片区域 */
.line-image {
    /*max-width: 768px;*/
    height: auto;
    flex: 1;
}

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

/* 响应式设计 */
@media (max-width: 1366px) {
    .line-container {
        flex-direction: column;
        height: auto;
    }

    .line-image {
        position: relative;
        width: 100%;
    }

    .product-list {
        padding: 20px;
    }

    .product-item {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .line-header {
        padding: 20px;
        font-size: 36px;
        line-height: 46px;
    }
    .product-list {
        margin-top: 0;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-item.expanded .arrow-icon {
    transform: rotate(180deg);
}