/* 应用领域页面样式 */


/* 应用领域Banner */

.app-banner {

    height: 40vw; /* 使用视窗宽度的百分比 */

    max-height: 565px; /* 保持最大高度限制 */

    min-height: 300px; /* 添加最小高度，避免在小屏幕上太矮 */

    background-image: url('../images/application-banner.jpg');

    background-size: cover;

    background-position: center;

    position: relative;

    display: flex;

    align-items: center;

}



.app-banner::before {

    content: '';

    position: absolute;

    top: 0;

    left: 0;

    width: 100%;

    height: 100%;

    background: rgba(0, 0, 0, 0.2);

}



.app-banner .banner-content {

    position: relative;

    z-index: 2;

    color: #fff;

    padding-left: 50px;

}







.app-banner h1 {

    font-size: 48px;

    font-weight: 700;

    margin-bottom: 10px;

}



.app-banner h2 {

    font-size: 36px;

    font-weight: 300;

    margin-bottom: 30px;

    opacity: 0.8;

}



.breadcrumb {

    font-size: 16px;

    color: rgba(255, 255, 255, 0.8);

}



.breadcrumb a {

    color: #fff;

    text-decoration: none;

    transition: color 0.3s ease;

}



.breadcrumb a:hover {

    color: #4CAF50;

}
.app-info-content {

    background-color: #fff;

    padding: 40px 60px;

    width: 100%;

    box-shadow: none;

    border-radius: 0;

    display: flex;

    flex-direction: column;

    justify-content: center;

}



.alt-row .app-info-content {

    background-color: #f8f9fa;

}



.app-info h3 {

    font-size: 32px;

    color: #0b779c;

    margin-bottom: 5px;

    order: -2;

}



.app-info h4 {

    font-size: 32px;

    color: #0b779c;

    margin-bottom: 20px;

    font-weight: 400;

    order: -1;

}



.app-description p {

    font-size: 15px;

    color: #555;

    line-height: 1.6;

    margin-bottom: 15px;

}



.btn-more {

    display: inline-block;

    padding: 8px 20px;

    background-color: transparent;

    border: 1px solid #0b779c;

    color: #0b779c;

    text-decoration: none;

    font-size: 14px;

    margin-top: 10px;

    transition: all 0.3s ease;

}



.btn-more:hover {

    background-color: #0b779c;

    color: #fff;

}


/* 应用领域内容 */
.app-content {
    padding: 60px 0;
    background-color: #f5f5f5;
}

.app-row {
    display: flex;
    margin-bottom: 50px;
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

/* 响应式调整 */
@media (max-width: 992px) {
    .app-row {
        flex-direction: column;
    }
    
    .app-slider, .app-info {
        flex: 0 0 100%;
        width: 100%;
    }
    
    .app-info-content {
        padding: 30px;
    }
    
    .app-info h3 {
        font-size: 28px;
    }
    
    .app-info h4 {
        font-size: 24px;
    }
}

@media (max-width: 768px) {
    .app-banner {
        height: 60vw;
    }
    
    .app-banner h1 {
        font-size: 26px;
    }
    
    .app-banner h2 {
        font-size: 20px;
    }
    
    .app-content {
        padding: 40px 0;
    }
    
    .app-row {
        margin-bottom: 30px;
    }
    
    .app-info-content {
        padding: 25px;
    }
    
    .app-info h3 {
        font-size: 24px;
    }
    
    .app-info h4 {
        font-size: 20px;
    }
    
    .app-description p {
        font-size: 14px;
    }
    
    .slider-container {
        height: 250px;
    }
}

/* 响应式调整 */

@media (max-width: 992px) {

    .app-banner {

        height: 50vw; /* 在中等屏幕上增加高度比例 */

    }

    

    .app-banner h1 {

        font-size: 36px;

    }

    

    .app-banner h2 {

        font-size: 28px;

    }

}



@media (max-width: 768px) {

    .app-banner {

        height: 60vw; /* 在小屏幕上进一步增加高度比例 */

    }

    

    .app-banner h1 {

        font-size: 30px;

    }

    

    .app-banner h2 {

        font-size: 20px;

    }

    

    .app-banner .banner-content {

        padding-left: 30px;
		padding-right: 30px;
		margin-top:80px;
		text-align:center;

    }

}



@media (max-width: 576px) {

    .app-banner {

        height: 70vw; /* 在超小屏幕上使用更大的高度比例 */

    }

    

    .app-banner h1 {

        font-size: 26px;

    }

    

    .app-banner h2 {

        font-size: 20px;

    }

}


/* 幻灯片和图片样式 */

.app-slider, .app-image {

    flex: 0 0 50%;

    position: relative;

}



.slider-container {

    position: relative;

    overflow: hidden;

    height: 100%;

}



.slider-wrapper {

    display: flex;

    transition: transform 0.5s ease;

    height: 100%;

}



.slide {

    flex: 0 0 100%;

    display: none;

    height: 100%;

}



.slide.active {

    display: block;

}



.slide img {

    width: 100%;

    height: 100%;

    object-fit: cover;

    display: block;

	transition: transform 0.5s ease;

}

.slide:hover img {

    transform: scale(1.05);

}

/* 内容信息样式 */

.app-info {

    flex: 0 0 50%;

    display: flex;

    padding: 0;

}







/* 添加箭头导航样式 */

.app-navigation {

    position: absolute;

    bottom: 50%;

    transform: translateY(50%);

    width: 100%;

    display: flex;

    justify-content: space-between;

    padding: 0 20px;

    z-index: 10;

}



.nav-arrow {

    width: 40px;

    height: 40px;

    background-color: rgba(255, 255, 255, 0.7);

    border-radius: 50%;

    display: flex;

    align-items: center;

    justify-content: center;

    cursor: pointer;

    transition: all 0.3s ease;

}



.nav-arrow:hover {

    background-color: #fff;

}



.nav-arrow i {

    color: #333;

    font-size: 16px;

}



@media (max-width: 768px) {
    .about-banner {
        height: 160px;
    }
    
    .mobile-banner-text {
        display: block;
        position: absolute;
        top: 50%;
        left: 20px;
        transform: translateY(-50%);
        color: #fff;
        z-index: 1;
    }

    .mobile-banner-text h2 {
        font-size: 24px;
        margin: 0 0 5px 0;
    }

    .mobile-banner-text p {
        font-size: 24px;
        margin: 0;
    }
    
    .about-banner-content {
        display: none;
    }

    .breadcrumb {
        bottom: 10px;
        left: 20px;
        font-size: 12px;
    }
}

/* 响应式调整 */
@media (max-width: 1600px) {
    .nav-arrows {
        right: 30px;
        top: 120px;
        position: absolute;
    }
    
    .equipment-stats {
        justify-content: flex-start;
        padding-left: 20px;
    }
    
    .equipment-gallery {
        grid-template-columns: 1fr 1fr 2fr 1fr 1fr;
    }
}

@media (max-width: 1400px) {
    .about-banner-content h1 {
        font-size: 45px;
    }
    
    .equipment-stat-number {
        font-size: 50px;
    }
    
    .equipment-stat-label {
        font-size: 16px;
    }
    
    .product-categories {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-number {
        font-size: 60px;
    }
    
    .stat-number span {
        font-size: 35px;
    }
}

@media (max-width: 1200px) {
    .equipment-gallery {
        grid-template-columns: repeat(4, 1fr);
        grid-template-rows: auto;
    }
    
    .equipment-item:nth-child(1) {
        grid-column: 1 / 2;
        grid-row: 1 / 3;
    }
    
    .equipment-item:nth-child(2) {
        grid-column: 2 / 3;
        grid-row: 1 / 2;
    }
    
    .equipment-item:nth-child(3) {
        grid-column: 2 / 3;
        grid-row: 2 / 3;
    }
    
    .equipment-item:nth-child(4) {
        grid-column: 3 / 5;
        grid-row: 1 / 3;
    }
    
    .equipment-item:nth-child(5) {
        grid-column: 1 / 2;
        grid-row: 3 / 4;
    }
    
    .equipment-item:nth-child(6) {
        grid-column: 2 / 3;
        grid-row: 3 / 4;
    }
    
    .equipment-item:nth-child(7) {
        grid-column: 3 / 5;
        grid-row: 3 / 4;
    }
    
    .equipment-stat-number {
        font-size: 55px;
    }
    
    .stat-number {
        font-size: 55px;
    }
    
    .stat-number span {
        font-size: 30px;
    }
    
    .nav-arrows {
        right: 20px;
        top: 80px;
    }
    
    .nav-arrow {
        width: 40px;
        height: 40px;
    }
    
    .product-categories {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-banner {
        height: 80vh;
    }
    
    .about-banner-content h1 {
        font-size: 40px;
        letter-spacing: 3px;
    }
    
    .company-stats {
        max-width: 700px;
    }
}

@media (max-width: 992px) {
    

    .about-banner {
        height: 60vh;
    }
    
    .about-banner-bg img {
        height: 100%;
        object-position: center;
    }

    .about-banner-content {
        padding: 60px 0;
    }
    
    .about-banner .container {
        padding-top: 20vh;
        padding-left: 30px;
    }

    .company-intro .container {
        flex-direction: column;
    }

    .company-intro-content {
        width: 100%;
        flex: 0 0 100%;
        padding-right: 0;
        margin-bottom: 30px;
    }

    .company-intro-image {
        width: 100%;
        flex: 0 0 100%;
        text-align: center;
    }
    
    .company-intro-image img {
        margin: 0 auto;
    }

    .company-stats {
        flex-wrap: wrap;
        justify-content: space-between;
        max-width: 100%;
    }

    .stat-item {
        width: 45%;
        margin-right: 0;
        margin-bottom: 20px;
        flex: 0 0 45%;
    }

    .equipment-gallery {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
    }

    .equipment-item:nth-child(n) {
        grid-column: auto;
        grid-row: auto;
    }

    .equipment-stats {
        flex-direction: column;
        left: 0;
        padding-left: 0;
    }

    .stat-block {
        margin-right: 0;
        margin-bottom: 20px;
    }

    .nav-arrows {
        right: 0;
        top: 0;
        position: static;
        margin-top: 20px;
        justify-content: center;
    }

    .product-categories {
        grid-template-columns: repeat(2, 1fr);
    }

    div[style*="padding-left: 50px; padding-right: 50px;"] {
        padding-left: 20px !important;
        padding-right: 20px !important;
    }
    
    .about-banner-content h1 {
        font-size: 36px;
        letter-spacing: 2px;
    }
}

@media (max-width: 576px) {
    .about-banner {
         
        min-height: 350px;
    }
    
    .about-banner-content {
        top: 180px;
        left: 15px;
        width: 90%;
        display: block !important;
    }
    
    .about-banner-content h1 {
        font-size: 24px;
        letter-spacing: 1px;
        margin-bottom: 10px;
        text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
        display: block !important;
    }
    
    .about-banner .container {
        padding-top: 12vh;
        padding-left: 15px;
    }

    /* 调整移动端小屏幕下红框区域文本 */
    .mobile-banner-text {
        top: 100px;
        padding: 10px;
        background-color: transparent; /* 确保小屏幕下也没有底色 */
    }
    
    .mobile-banner-text h2 {
        font-size: 22px;
    }
    
    .mobile-banner-text p {
        font-size: 14px;
    }

    .stat-item {
        width: 100%;
        margin-bottom: 15px;
    }

    .equipment-stat-number {
        font-size: 45px;
    }

    .equipment-stat-label {
        font-size: 14px;
    }
    
    .section-title {
        font-size: 22px;
    }
    
    .product-category-image {
        height: 180px;
    }
    
    .stat-number {
        font-size: 45px;
    }
    
    .stat-number span {
        font-size: 25px;
    }
}

/* 重置布局按钮 */
.reset-layout {
    position: fixed;
    bottom: 80px;
    right: 20px;
    z-index: 100;
}

.reset-layout button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #07769C;
    color: #fff;
    border: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.3s ease;
}

.reset-layout button:hover {
    background-color: #065d7a;
    transform: rotate(180deg);
}

/* Biomedical Section Styles */
.biomedical-section {
    padding: 80px 0;
    background-color: #f5f5f5;
}

.biomedical-content {
    display: flex;
    width: 1800px;
    height: 619px;
    margin: 0 auto;
}

.biomedical-content.content-reverse {
    flex-direction: row-reverse;
}

/* Slider Styles */
.slider-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    height: 100%;
}

.slider {
    width: 100%;
    height: 100%;
}

.slide {
    display: none;
    width: 100%;
    height: 100%;
}

.slide.active {
    display: block;
}

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

.slider-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 15px;
}

.arrow-container {
    width: 56px;
    height: 56px;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
}

.prev-btn,
.next-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.prev-btn i,
.next-btn i {
    font-size: 20px;
    color: #333;
}

/* Content Box Styles */
.content-box {
    width: 50%;
    background-color: #fff;
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.content-box .en-title {
    font-size: 36px;
    color: #0b779c;
    margin-bottom: 10px;
}

.content-box .cn-title {
    font-size: 24px;
    color: #0b779c;
    margin-bottom: 30px;
}

.content-box .description {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 40px;
}

.learn-more-btn {
    display: inline-block;
    padding: 12px 30px;
    border: 1px solid #0b779c;
    color: #0b779c;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
    width: fit-content;
}

.learn-more-btn:hover {
    background-color: #0b779c;
    color: #fff;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .biomedical-section {
        padding: 40px 0;
    }

    .biomedical-content,
    .biomedical-content.content-reverse {
        flex-direction: column;
        width: 100%;
        height: auto;
    }

    .content-box {
        width: 100%;
        padding: 30px 20px;
    }

    .content-box .en-title {
        font-size: 28px;
    }

    .content-box .cn-title {
        font-size: 20px;
    }

    .slider-container {
        height: 300px;
    }

    .arrow-container {
        width: 40px;
        height: 40px;
    }

    .prev-btn,
    .next-btn {
        width: 30px;
        height: 30px;
    }

    .prev-btn i,
    .next-btn i {
        font-size: 16px;
    }
}

/* 产品中心页面样式 */
.product-section {
    padding: 60px 0;
    background-color: #fff;
}

.product-filter {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.filter-btn {
    width: 221px;
    height: 60px;
    border: none;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #fff;
    color: #000;
    border: 1px solid #e0e0e0;
}

.filter-btn.active {
    background-color: #44afbd;
    color: #fff;
    border: none;
}

.filter-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.product-content {
    margin-top: 40px;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .product-filter {
        flex-direction: column;
        align-items: center;
    }

    .filter-btn {
        width: 100%;
        max-width: 221px;
    }
}

/* 产品网格布局 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 480px);
 
  
}

.product-item {
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 100%;
}

.product-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.product-item:hover img {
    transform: scale(1.05);
}

.product-info {
    position: absolute;
    bottom: 30px;
    left: 30px;
    color: #fff;
    z-index: 2;
}

.product-info .en-name {
    font-size: 22px;
    margin: 0 0 5px 0;
    font-weight: normal;
}

.product-info .cn-name {
    font-size: 30px;
    margin: 0;
    font-weight: normal;
}

.product-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-item:hover::before {
    opacity: 1;
}

.product-item a {
    text-decoration: none;
    color: inherit;
    display: block;
    width: 100%;
    height: 100%;
}

.product-item:hover a {
    color: inherit;
}

/* 响应式适配 */
@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(5, 480px);
    }
}

@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(9, 480px);
    }
    
    .product-info {
        bottom: 20px;
        left: 20px;
    }
    
    .product-info .en-name {
        font-size: 20px;
    }
    
    .product-info .cn-name {
        font-size: 26px;
    }
}

/* VIEW MORE 按钮样式 */
.view-more-container {
    text-align: center;
    margin: 60px 0;
}

.view-more-btn {
    display: inline-block;
    padding: 15px 60px;
    border: 2px solid #0b779c;
    color: #0b779c;
    background: transparent;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.view-more-btn:hover {
    background: #0b779c;
    color: #fff;
} 



/* 新闻轮播部分 */
.nn-slider-section {
    padding: 60px 0;
    position: relative;
    overflow: visible;
    background: #fff;
}

.nn-slider-section .container {
    position: relative;
    overflow: visible;
}

.nn-slider {
    position: relative;
    width: 100%;
    overflow: visible;
    padding: 0 60px;
}

.nn-slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: white;
    border: none;
    cursor: pointer;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nn-slider-arrow i {
    color: #40bed0;
    font-size: 20px;
}

.nn-prev {
    left: 0;
}

.nn-next {
    right: 0;
}

.nn-slider-content {
    display: flex;
    overflow: hidden;
}

.nn-slide {
    display: flex;
    width: 100%;
    gap: 30px;
}

.nn-slide-image {
    flex: 1;
    height: 400px;
}

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

.nn-slide-info {
    flex: 1;
    padding: 20px 0;
    display: flex;
    flex-direction: column;
}

.nn-slide-date {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.nn-slide-title {
    font-size: 32px;
    color: #0b779c;
    margin-bottom: 20px;
    line-height: 1.3;
}

.nn-slide-desc {
    font-size: 16px;
    color: #575757;
    line-height: 1.6;
    margin-bottom: 30px;
}

.nn-slide-btn {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid #0b779c;
    color: #0b779c;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    margin: 0 auto;
    width: fit-content;
}

.nn-slide-btn:hover {
    background: #0b779c;
    color: white;
}

.nn-slider-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.nn-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ddd;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nn-dot.active {
    background: #0b779c;
}

@media (max-width: 768px) {
    .nn-slide {
        flex-direction: column;
    }

    .nn-slide-image,
    .nn-slide-info {
        width: 100%;
    }

    .nn-slider-arrow {
        width: 40px;
        height: 40px;
    }

    .nn-prev {
        left: 10px;
    }

    .nn-next {
        right: 10px;
    }

    .nn-slide-title {
        font-size: 24px;
    }
}

/* 新闻列表部分 */
.nn-news-list {
    padding: 60px 0;
    background: #fff;
}

.nn-news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.nn-news-item {
    display: flex;
    flex-direction: column;
    background: #fff;
}

.nn-news-image {
    width: 100%;
    height: 240px;
    overflow: hidden;
}

.nn-news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.nn-news-item:hover .nn-news-image img {
    transform: scale(1.05);
}

.nn-news-info {
    padding: 20px 0;
}

.nn-news-date {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}

.nn-news-title {
    font-size: 24px;
    color: #0b779c;
    margin-bottom: 15px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.nn-news-desc {
    font-size: 16px;
    color: #575757;
    line-height: 1.6;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.nn-news-link {
    font-size: 16px;
    color: #0b779c;
    text-decoration: none;
    display: inline-block;
}

.nn-news-link:hover {
    text-decoration: underline;
}

/* 响应式适配 */
@media (max-width: 1200px) {
    .nn-news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nn-news-grid {
        grid-template-columns: 1fr;
    }
    
    .nn-news-image {
        height: 200px;
    }
}

/* 联系我们页面样式 */
.contact-section {
    display: flex;
    height: 760px;
    width: 100%;
}

.contact-map {
    flex: 1;
    height: 100%;
}

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

.contact-info {
    flex: 1;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    background: #f7f7f7;
}

.company-title {
    margin-bottom: 180px;
}

.company-title h1 {
    font-size: 48px;
    color: #2384a6;
    margin-bottom: 20px;
    font-weight: normal;
}

.company-title p {
    font-size: 22px;
    color: #333;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-top: -20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-row {
    max-width: 920px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.contact-divider {
    width: 1px;
    height: 50px;
    background-color: #e0e0e0;
    margin: 0 10px;
}

.contact-icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: 1px solid #e0e0e0;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 20px;
    color: #666;
}

.contact-text {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.contact-text h3 {
    font-size: 16px;
    color: #999;
    margin: 0;
    font-weight: normal;
}

.contact-text p {
    font-size: 16px;
    color: #333;
    margin: 0;
    line-height: 1.4;
}

@media (max-width: 1200px) {
    .contact-section {
        flex-direction: column;
        height: auto;
    }

    .contact-map {
        height: 400px;
    }

    .contact-info {
        padding: 40px 20px;
    }

    .company-title h1 {
        font-size: 36px;
    }

    .company-title p {
        font-size: 18px;
    }

    .contact-row {
        flex-direction: column;
        gap: 30px;
    }

    .contact-divider {
        display: none;
    }
}

/* 产品特性和应用 */
.product-features {
    padding: 60px 0;
    background-color: #f5f5f5;
}

.section-title {
    font-size: 30px;
    color: #333;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: #0066cc;
}

.features-content {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.features-left {
    flex: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-item {
    height: 100%;
}

.feature-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.feature-title .cn-title {
    font-size: 30px;
    color: #333;
    margin-bottom: 5px;
}

.feature-title .en-title {
    font-size: 16px;
    color: #d3d3d3;
    margin: 0;
}

.feature-icon {
    width: 70px;
    height: 70px;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-desc {
    font-size: 16px;
    color: #575757;
    line-height: 2.0;
    margin: 0;
}

.features-right {
    width: 300px;
}

.chemical-structure {
    border: 1px solid #e0e0e0;
}

.chemical-structure img {
    width: 100%;
    height: auto;
    display: block;
}

.structure-title {
    background-color: #0066cc;
    padding: 12px 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.structure-title h4 {
    color: #fff;
    font-size: 18px;
    margin: 0;
}

@media screen and (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    .features-content {
        flex-direction: column;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .features-right {
        width: 100%;
    }
}

/* 应用领域 */
.application-field {
    margin: 80px auto;
    border-top: 1px solid #3a90ae;
    border-bottom: 1px solid #3a90ae;
    max-width: 1800px;
}

.application-field .container {
    max-width: 1800px;
    padding: 0;
    margin: 0 auto;
}

.field-header {
    margin-top: 50px;
    background-color: #3a90ae;
    padding: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.field-title {
    color: #fff;
}

.field-title .en-title {
    font-size: 36px;
    margin: 0 0 5px 0;
    font-weight: normal;
}

.field-title .cn-title {
    font-size: 24px;
    margin: 0;
    font-weight: normal;
}

.back-arrow {
    font-size: 24px;
    color: #fff;
    cursor: pointer;
}

.field-content {
    padding: 60px 30px;
    background-color: #fff;
}

.field-items {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
}

.field-item {
    text-align: left;
}

.item-title {
    font-size: 30px;
    color: #333;
    margin: 0 0 20px 0;
    font-weight: normal;
}

.item-desc {
    font-size: 16px;
    color: #575757;
    line-height: 2.0;
    margin: 0;
}

/* 双列领域布局 */
.dual-fields {
    margin: 0 0 80px 0;
    max-width: 1800px;
    margin: 0 auto 80px;
}

.dual-fields .container {
    max-width: 1800px;
    padding: 0;
    margin: 0 auto;
}

.fields-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    border-bottom: 1px solid #3a90ae;
}

.field-column {
    border-top: 1px solid #3a90ae;
}

.field-column .field-header {
    margin-top: 0;
}

.field-column .field-items {
    display: block;
    gap: 0;
}

.field-column .field-item {
    padding: 30px 0;
}

.field-column .field-item.with-border {
    border-top: 1px solid #e0e0e0;
}

.field-column .item-title {
    font-size: 30px;
    margin-bottom: 15px;
}

@media screen and (max-width: 1200px) {
    .field-items {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media screen and (max-width: 992px) {
    .fields-row {
        grid-template-columns: 1fr;
    }

    .field-column + .field-column {
        margin-top: 50px;
    }
}

@media screen and (max-width: 768px) {
    .field-items {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .field-title .en-title {
        font-size: 28px;
    }

    .field-title .cn-title {
        font-size: 20px;
    }

    .item-title {
        font-size: 24px;
    }

    .field-column .item-title {
        font-size: 24px;
    }
}

/* 产品参数表格 */
.product-specs {
    padding: 60px 0;
    max-width: 1800px;
    margin: 0 auto;
}

.product-specs .container {
    max-width: 1800px;
    padding: 0;
    margin: 0 auto;
}

.specs-tables {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.specs-table table {
    width: 100%;
    border-collapse: collapse;
    background-color: #ececec;
}

.specs-table th,
.specs-table td {
    padding: 15px 20px;
    text-align: left;
    border: 1px solid #fff;
    color: #8b8b8b;
    font-size: 16px;
    font-weight: normal;
}

.specs-table th {
    background-color: #ececec;
    color: #3a90ae !important;
    font-weight: bold;
    font-size: 18px;
}

.specs-table td {
    background-color: #ececec;
}

.specs-table .blue-text {
    color: #3a90ae;
    font-weight: bold;
    font-size: 18px;
}

@media screen and (max-width: 992px) {
    .specs-tables {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media screen and (max-width: 768px) {
    .specs-table th {
        font-size: 16px;
    }
    .specs-table td {
        padding: 10px 15px;
        font-size: 14px;
    }
    .specs-table .blue-text {
        font-size: 16px;
    }
}

.nn-slide a {
    text-decoration: none;
    color: inherit;
    display: block;
    width: 100%;
    height: 100%;
}

.nn-news-item a {
    text-decoration: none;
    color: inherit;
    display: block;
    width: 100%;
    height: 100%;
}

.nn-slide:hover a,
.nn-news-item:hover a {
    color: inherit;
}

.nn-slider-btn-wrapper {
    text-align: center;
    margin-top: 20px;
}

.nn-slide-btn {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid #0b779c;
    color: #0b779c;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.nn-slide-btn:hover {
    background: #0b779c;
    color: white;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 40px;
    font-size: 0;  /* 移除按钮之间的间距 */
}

.pagination a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-width: 40px;
    height: 40px;
    padding: 0 15px;
    background: #fff;
    border: 1px solid #ddd;
    color: #333;
    font-size: 14px;
    text-decoration: none;
    margin: 0;
    border-right: none;
}

.pagination a:last-child {
    border-right: 1px solid #ddd;
}

.pagination .page-prev,
.pagination .page-next {
    padding: 0;
    width: 40px;
}

.pagination .active {
    background: #0b779c;
    color: #fff;
    border-color: #0b779c;
}

.pagination a:hover:not(.active) {
    background: #f5f5f5;
}
.about-banner {
    position: relative;
}

.about-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(47, 161, 201, 0.5);
    z-index: 1;
}

.about-banner .banner-content {
    position: relative;
    z-index: 2;
}

.contact-global {
    height: 840px;
    background: url('../images/diqiu.jpg') no-repeat center;
    background-size: cover;
    position: relative;
}

.contact-global-content {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 calc((100% - 1920px) / 2 + 40px);
    height: 100%;
    display: flex;
    align-items: center;
}

.contact-global-left {
    width: 520px;
    color: #fff;
}

.global-header {
    margin-bottom: 80px;
}

.global-header h2 {
    font-size: 36px;
    margin-bottom: 15px;
    font-weight: normal;
}

.global-header p {
    font-size: 16px;
    opacity: 0.8;
}

.global-info {
    display: flex;
    gap: 60px;
    position: relative;
    padding: 30px 0;
}

.global-info::before,
.global-info::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
}

.global-info::before {
    top: 0;
}

.global-info::after {
    bottom: 0;
}

.global-item {
    position: relative;
    padding-bottom: 30px;
}

.global-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 1px;
    background: #fff;
}

.global-item h3 {
    font-size: 16px;
    margin-bottom: 15px;
    font-weight: normal;
    opacity: 0.8;
}

.global-item p {
    font-size: 20px;
}

.contact-form-wrapper {
    width: 920px;
    position: absolute;
    right: calc((100% - 1920px) / 2 +  0px);
    top: -83px;
    z-index: 10;
}

.contact-form {
    background: #2384a6;
    padding: 60px;
}

.contact-form h2 {
    color: #fff;
    font-size: 36px;
    font-weight: normal;
    margin-bottom: 50px;
}

.form-group {
    margin-bottom: 40px;
}

.form-group label {
    display: block;
    color: #fff;
    font-size: 14px;
    margin-bottom: 15px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 22px;
    padding: 10px 0;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.form-group textarea {
    height: 100px;
    resize: none;
}

.submit-btn {
    width: 100%;
    padding: 15px 0;
    background: transparent;
    border: 1px solid #fff;
    color: #fff;
    font-size: 22px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

@media (max-width: 1920px) {
    .contact-global-content {
        max-width: 1440px;
        padding: 0 40px;
    }
    
    .contact-form-wrapper {
        right: 240px;
    }
}

@media (max-width: 1200px) {
    .contact-global {
        height: auto;
        padding-bottom: 60px;
    }

    .contact-global-content {
        max-width: 100%;
        padding: 0 20px;
        flex-direction: column;
        padding-top: 450px;
    }

    .contact-global-left {
        width: 100%;
        max-width: 520px;
    }

    .contact-form-wrapper {
        width: calc(100% - 40px);
        max-width: 920px;
        position: absolute;
        right: auto;
        left: 50%;
        transform: translateX(-50%);
        top: 0;
    }

    .contact-form {
        padding: 40px 30px;
    }

    .global-header {
        margin-bottom: 40px;
    }

    .global-info {
        flex-direction: column;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .contact-global-content {
        padding-top: 520px;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .contact-form h2 {
        font-size: 28px;
        margin-bottom: 30px;
    }

    .form-group {
        margin-bottom: 25px;
    }

    .global-header h2 {
        font-size: 28px;
    }

    .global-header p {
        font-size: 14px;
    }
}