/* Banner区域 */
.banner {
    height: 750px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/rd-banner.png') no-repeat center/cover;
}

.banner-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background: linear-gradient(rgba(0,102,204,0.8), rgba(0,102,204,0.6)); */
}

/* 日本专家 */
.expert {
    padding: 80px 0;
    background: #fff;
}

.expert-card {
    display: flex;
    gap: 60px;
    background: #f8f9fa;
    padding: 40px;
    border-radius: 8px;
    margin-top: 40px;
}

.expert-photo {
    flex: 0 0 300px;
}

.expert-photo img {
    width: 100%;
    height: auto;
    border-radius: 4px;
}

.expert-info {
    flex: 1;
}

.expert-name {
    display: inline-block;
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 15px;
    border-radius: 33px;
}

.expert-title {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.expert-desc {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
}

/* 专利证书 */
.patent {
    padding: 80px 0;
    background: #fff;
}

/* Swiper样式 */
.cert-list {
    width: 100%;
    position: relative;
}

.cert-list .swiper-container {
    padding: 20px 0 60px;
    overflow: hidden;
}

.cert-item {
    text-align: center;
    cursor: pointer;
}

.cert-img {
    background: #fff;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.cert-item:hover .cert-img {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.cert-img img {
    width: 100%;
    height: auto;
}

.cert-title {
    font-size: 16px;
    color: #333;
    margin-top: 15px;
}

.cert-list .swiper-pagination {
    bottom: -30px;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.cert-list .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: #ddd;
    opacity: 1;
    margin: 0 !important;
}

.cert-list .swiper-pagination-bullet-active {
    background: var(--primary-color);
}

/* 复用about.css中的证书相关样式 */
.cert-container {
    display: flex;
    gap: 60px;
    margin-top: 40px;
}

/* ... 其他证书相关样式复用about.css ... */

/* 响应式布局 */
@media screen and (max-width: 992px) {
    .expert-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .expert-photo {
        flex: 0 0 auto;
        width: 200px;
    }
}

@media screen and (max-width: 768px) {
    .sub-menu {
        display: flex;  /* 确保在移动端也是显示状态 */
        width: 100%;
    }

    .banner {
        height: 300px;
    }

    .expert-card {
        padding: 20px;
    }

    .expert-name {
        font-size: 24px;
    }

    .expert-title {
        font-size: 16px;
    }

    .expert-desc {
        font-size: 14px;
    }
}

.breadcrumb-wrapper {
    background: #f8f9fa;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

.breadcrumb-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #666;
    font-size: 14px;
}

.page-nav {
    display: flex;
    gap: 30px;
}

.page-nav a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

.page-nav a.active {
    color: #333;
    font-weight: bold;
}

.location {
    display: flex;
    align-items: center;
    gap: 5px;
}

.location a {
    color: var(--primary-color);
}

.location span {
    color: #333;
}

.location span:first-child {
    color: #666;
}