/* 英雄区：全屏大视觉 + 紧凑布局 */
.hero-section {
    width: 100%;
    position: relative;
    overflow: hidden;

}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 6%;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.8rem);
    color: #3FB0B2;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: clamp(0.9rem, 1.8vw, 1.1rem);
    color: #2C3B58;
    max-width: 700px;
    margin-bottom: 2rem;
    letter-spacing: 0.3px;
}

.hero-btn {
    display: inline-block;
    padding: 0.9rem 1.8rem;
    background-color: #00c6ff;
    color: #000;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 6px;
    transition: all .3s ease;
    width: fit-content;
}
ul.main-menu.active{display: block;}

.hero-btn:hover {
    background-color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,198,255,0.4);
}

/* 产品展示区：单行四项布局（强制不换行） + 极简卡片 */
.products-section {
    width: 100%;
    padding: 4rem 4% 4rem;
    background-color: #f9f9f9;
    overflow-x: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.products-section::-webkit-scrollbar {
    display: none;
}

.products-grid {
    display: flex;
    max-width: 100%;
    width: fit-content;
    margin: 0 auto;
    padding: 0 0.5rem;
    flex-wrap: wrap;
   
}

.product-card {
    position: relative;
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    transition: all .4s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    cursor: pointer;
    width: calc((100% - 120px) / 4);
    margin-right: 40px;
    flex-shrink: 0;
    margin-bottom: 40px;
}
.product-card:nth-child(4n){
    margin-right: 0;
}

.product-card a {
    display: block;
    width: 100%;
   
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.1);
}

.product-card-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    background-color: #f0f0f0;
}

.product-card-content {
    padding: 1.5rem 1.2rem;
}

.product-card-title {
    font-size: 1.15rem;
    color: #111;
    margin-bottom: 0.6rem;
    font-weight: 600;
}

.product-card-desc {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.product-card-link {
    display: inline-block;
    color: #00c6ff;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all .3s ease;
}

/* 核心内容区：紧凑分栏 + 极简卡片（核心技术四项布局） */
.core-content {
    width: 100%;
    padding: 4rem 4% 2rem;
    max-width: 1600px;
    margin: 0 auto;
}

.core-section {
    margin-bottom: 6rem;
}

.core-section:last-child {
    margin-bottom: 0;
}

.core-grid {
    display: flex;
    gap: 2rem;
    max-width: 100%;
    width: fit-content;
    margin: 0 auto;
    padding: 0 0.5rem;
    /* overflow-x: auto; */
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.core-grid::-webkit-scrollbar {
    display: none;
}

.core-card {
    background-color: #fff;
    padding: 2rem 1.5rem;
    border-radius: 10px;
    transition: all .3s ease;
    border: 1px solid #eee;
    cursor: pointer;
    width: 280px;
    flex-shrink: 0;
}

.core-card a {
    display: block;
    width: 100%;
    height: 100%;
}

.core-card:hover {
    transform: translateY(-6px);
    /* border-color: #00c6ff; */
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
}

.core-card-icon {
    width: 50px;
    height: 50px;
    background-color: #f0f9ff;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.2rem;
    color: #00c6ff;
    font-size: 1.3rem;
}

.core-card-img {
    width: 100%;
    height: 260px;
    border-radius: 8px;
    margin: 1rem 0;
    object-fit: cover;
    background-color: #f0f0f0;
}

.core-card-title {
    font-size: 1.15rem;
    color: #111;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.core-card-desc {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.5;
     overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3; 
  -webkit-box-orient: vertical;
  word-break: break-word; 
}

/* 企业新闻区：单行四项布局（强制不换行） + 图文 + 更多链接 */
.news-section {
    width: 100%;
    padding: 4rem 4% 2rem;
    background-color: #f9f9f9;
    overflow-x: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.news-section::-webkit-scrollbar {
    display: none;
}

.news-grid {
    display: flex;
    gap: 2.5rem;
    max-width: 100%;
    width: fit-content;
    margin: 0 auto;
    padding: 0 0.5rem;
}

.news-card {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    transition: all .4s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    cursor: pointer;
    width: 280px;
    flex-shrink: 0;
}

.news-card a {
    display: block;
    width: 100%;
    height: 100%;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.1);
}

.news-card-img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    background-color: #f0f0f0;
}

.news-card-content {
    padding: 1.5rem 1.2rem;
}

.news-card-date {
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 0.6rem;
}

.news-card-title {
    font-size: 1.1rem;
    color: #111;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.news-card-desc {
    font-size: 0.85rem;
    color: #666;
    line-height: 1.5;
}

/* 重大事件区：紧凑时间轴 + 极简风格 */
.events-section {
    width: 100%;
    padding: 4rem 4% 2rem;
    background-color: #f9f9f9;
}

.events-timeline {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.events-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: #eee;
}

.event-item {
    display: flex;
    margin-bottom: 4rem;
    position: relative;
}

.event-item:nth-child(even) {
    flex-direction: row-reverse;
}

.event-content {
    width: 50%;
    padding: 0 2.5rem;
}

.event-date {
    font-size: 0.85rem;
    color: #00c6ff;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.event-title {
    font-size: 1.2rem;
    color: #111;
    margin-bottom: 0.9rem;
    font-weight: 600;
}

.event-desc {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.5;
}

.event-dot {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background-color: #00c6ff;
    border-radius: 50%;
    border: 3px solid #f9f9f9;
    z-index: 1;
}
.events-timeline img{width: 100%;}
.news-card-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.5;
}
.news-card-desc {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.5;
}

.news-card .news-img{
    width: auto;
    min-width: 100%;
    height: 200px;
    overflow: hidden;
    display: block;
}
.qrcode-download {
    margin-top: 30px;
}
.download-container .qrcode-item{
    width: 50%;
}