* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    width: 120px;
    height: auto;
    object-fit: contain;
}

.logo h1 {
    display: none;
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-menu li {
    margin-left: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: #34495e;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-menu a:hover {
    color: #27ae60;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #27ae60;
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.pv-link {
    background-color: #e74c3c;
    color: #fff !important;
    padding: 8px 16px;
    border-radius: 4px;
}

.pv-link:hover {
    background-color: #c0392b !important;
}

.pv-link::after {
    display: none;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 2px 0;
}

/* 英雄区域样式 */
.hero {
    color: #fff;
}

.hero-content {
    background: linear-gradient(rgba(45, 65, 89, 0.85), rgba(45, 65, 89, 0.85)), url('images/效果图.png');
    background-size: cover;
    background-position: center;
    text-align: center;
    padding: 180px 0 150px;
    position: relative;
    overflow: hidden;
}

.hero-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.1), rgba(52, 152, 219, 0.1));
    z-index: 1;
}

.hero-content > .container {
    position: relative;
    z-index: 2;
}

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 25px;
    color: #fff;
    font-weight: 700;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: rgba(255,255,255,0.9);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.primary-btn {
    background-color: #27ae60;
    color: #fff;
    border: 2px solid #27ae60;
}

.primary-btn:hover {
    background-color: #229954;
    border-color: #229954;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(39, 174, 96, 0.3);
}

.secondary-btn {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.secondary-btn:hover {
    background-color: #fff;
    color: #2c3e50;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255,255,255,0.2);
}

/* 英雄区域特性卡片 */
.hero-features {
    background-color: #f8f9fa;
    padding: 80px 0;
    position: relative;
}

.hero-features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 10px;
    background: linear-gradient(90deg, #27ae60, #3498db);
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.feature-card {
    background-color: #fff;
    padding: 50px 35px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    text-align: center;
    transition: all 0.3s ease;
    border-top: 4px solid #27ae60;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 56px;
    margin-bottom: 25px;
    color: #27ae60;
}

.feature-card h3 {
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 22px;
    font-weight: 600;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
    font-size: 15px;
}

/* 药物警戒高亮区域 */
.pv-highlight {
    background-color: #e74c3c;
    padding: 40px 0;
    color: #fff;
}

.pv-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.pv-content h3 {
    margin-bottom: 5px;
    font-size: 24px;
}

.pv-content p {
    margin: 0;
    opacity: 0.9;
}

.pv-btn {
    background-color: #fff;
    color: #e74c3c;
    font-weight: 600;
}

.pv-btn:hover {
    background-color: #f8f9fa;
    transform: translateY(-2px);
}

/* 关于我们样式 */
.about {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.about h2 {
    text-align: center;
    margin-bottom: 60px;
    color: #2c3e50;
    font-size: 32px;
}

.about-section {
    margin-bottom: 60px;
    padding: 30px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.about-section h3 {
    margin-bottom: 30px;
    color: #2c3e50;
    font-size: 24px;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
}

/* 使命愿景样式 */
.mission-vision {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
}

.mission,
.vision {
    flex: 1;
    min-width: 300px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.mission h4,
.vision h4 {
    margin-bottom: 15px;
    color: #3498db;
    font-size: 18px;
}

.mission p,
.vision p {
    line-height: 1.6;
    color: #666;
}

/* 企业文化样式 */
.culture-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.culture-item {
    background-color: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.culture-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.culture-item h4 {
    margin-bottom: 15px;
    color: #3498db;
    font-size: 18px;
}

.culture-value {
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
}

.culture-item p {
    line-height: 1.6;
    color: #666;
}

/* 核心价值观样式 */
.core-values h4 {
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 18px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.value-item {
    padding: 25px;
    background-color: #f8f9fa;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.value-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.value-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.value-item h5 {
    margin-bottom: 10px;
    color: #2c3e50;
    font-size: 16px;
}

.value-item p {
    line-height: 1.6;
    color: #666;
    font-size: 14px;
}

/* 公司概览样式 */
.company-overview {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.company-image {
    width: 100%;
    max-width: 1000px;
    margin-bottom: 30px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.factory-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.company-image:hover .factory-image {
    transform: scale(1.02);
}

.company-overview p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: #333;
    max-width: 800px;
    text-align: center;
}

/* 核心优势样式 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.advantage-item {
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.advantage-item h4 {
    margin-bottom: 15px;
    color: #3498db;
    font-size: 18px;
}

.advantage-item p {
    line-height: 1.6;
    color: #666;
}

/* 企业社会责任样式 */
.csr-content p {
    margin-bottom: 20px;
    line-height: 1.6;
    color: #333;
}

.csr-list {
    list-style: none;
    padding-left: 0;
}

.csr-list li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
    color: #666;
}

.csr-list li:before {
    content: "•";
    color: #3498db;
    font-size: 20px;
    position: absolute;
    left: 0;
    top: -2px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .mission-vision {
        flex-direction: column;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .about-section {
        padding: 20px;
    }
    
    .about h2 {
        font-size: 28px;
    }
    
    .about-section h3 {
        font-size: 20px;
    }
}

/* 产品中心样式 */
.products {
    padding: 100px 0;
    background-color: #f9f9f9;
}

/* 面包屑导航 */
.breadcrumb {
    margin-bottom: 20px;
    font-size: 14px;
    color: #666;
}

.breadcrumb a {
    color: #27ae60;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    text-decoration: underline;
    color: #229954;
}

/* 搜索功能 */
.product-search {
    display: flex;
    margin: 0 auto 40px;
    max-width: 500px;
    background-color: #fff;
    border-radius: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: hidden;
}

#product-search-input {
    flex: 1;
    padding: 15px 20px;
    border: none;
    font-size: 14px;
    outline: none;
}

.search-btn {
    background-color: #27ae60;
    color: #fff;
    border: none;
    padding: 15px 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.search-btn:hover {
    background-color: #229954;
    transform: translateY(-1px);
}

.products h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 36px;
    font-weight: 700;
}

.product-intro {
    text-align: center;
    margin-bottom: 80px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: #666;
    line-height: 1.6;
    font-size: 16px;
}

.product-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
    gap: 40px;
}

.category-item {
    background-color: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    border-top: 4px solid #27ae60;
}

.category-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.category-image {
    height: 220px;
    overflow: hidden;
    position: relative;
}

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

.category-item:hover .category-image img {
    transform: scale(1.1);
}

.category-content {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.category-content h3 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 22px;
    font-weight: 600;
}

.category-content p {
    margin-bottom: 25px;
    color: #666;
    line-height: 1.6;
    flex: 1;
    font-size: 15px;
}

.category-btn {
    background-color: #27ae60;
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: flex-start;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 14px;
}

.category-btn:hover {
    background-color: #229954;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
}

/* 产品详情样式 */
.product-detail {
    padding: 80px 0;
    background-color: #f9f9f9;
    display: none;
}

.product-detail .breadcrumb {
    margin-bottom: 20px;
}

/* 药物警戒提示 */
.pv-banner-sm {
    background-color: #e74c3c;
    color: #fff;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 30px;
    text-align: center;
}

.pv-banner-sm a {
    color: #fff;
    text-decoration: underline;
    font-weight: 500;
}

.pv-banner-sm a:hover {
    text-decoration: none;
}

.product-detail h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
}

.product-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.product-item {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.product-image {
    height: 150px;
    overflow: hidden;
    margin-bottom: 15px;
    border-radius: 4px;
}

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

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

.product-item h3 {
    margin-bottom: 10px;
    color: #2c3e50;
}

.product-item p {
    margin-bottom: 15px;
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .product-search {
        flex-direction: column;
    }
    
    #product-search-input {
        border-radius: 4px;
        margin-bottom: 10px;
    }
    
    .search-btn {
        border-radius: 4px;
    }
    
    .product-categories {
        grid-template-columns: 1fr;
    }
    
    .category-item {
        flex-direction: column;
    }
    
    .product-list {
        grid-template-columns: 1fr;
    }
}

/* 公司动态样式 */
.news {
    padding: 100px 0;
    background-color: #f9f9f9;
}

.news h2 {
    text-align: center;
    margin-bottom: 60px;
    color: #2c3e50;
    font-size: 36px;
    font-weight: 700;
}

/* 标签样式 */
.news-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    background-color: #fff;
    border: 2px solid #27ae60;
    color: #27ae60;
    padding: 12px 24px;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 14px;
}

.tab-btn:hover {
    background-color: #27ae60;
    color: #fff;
    transform: translateY(-2px);
}

.tab-btn.active {
    background-color: #27ae60;
    color: #fff;
}

/* 标签内容样式 */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* 新闻资讯样式 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.news-item {
    display: flex;
    gap: 30px;
    background-color: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border-left: 4px solid #27ae60;
}

.news-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.news-date {
    flex: 0 0 140px;
    background-color: #27ae60;
    color: #fff;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    font-size: 16px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-content {
    flex: 1;
}

.news-content h3 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 20px;
    font-weight: 600;
}

.news-content p {
    margin-bottom: 20px;
    color: #666;
    line-height: 1.6;
    font-size: 15px;
}

.news-link {
    color: #27ae60;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding-bottom: 5px;
}

.news-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #27ae60;
    transition: width 0.3s ease;
}

.news-link:hover {
    color: #229954;
}

.news-link:hover::after {
    width: 100%;
}

/* 研发概况样式 */
.rd-content {
    background-color: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.rd-content p {
    margin-bottom: 20px;
    color: #333;
    line-height: 1.8;
    font-size: 15px;
}

/* 在研品种样式 */
.pipeline-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.pipeline-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border-top: 4px solid #27ae60;
}

.pipeline-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.pipeline-item h3 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 18px;
    font-weight: 600;
}

.pipeline-item p {
    color: #666;
    line-height: 1.6;
    font-size: 14px;
}

/* 代理合作样式 */
.cooperation-content {
    background-color: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.cooperation-content p {
    margin-bottom: 20px;
    color: #333;
    line-height: 1.8;
    font-size: 15px;
}

.cooperation-content ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.cooperation-content li {
    margin-bottom: 10px;
    color: #666;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .news-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .news-item {
        flex-direction: column;
        gap: 20px;
    }
    
    .news-date {
        flex: none;
        width: 100%;
    }
    
    .pipeline-content {
        grid-template-columns: 1fr;
    }
}

/* 联系我们样式 */
.contact {
    padding: 100px 0;
    background-color: #f9f9f9;
}

.contact h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 36px;
    font-weight: 700;
}

.contact > .container > p {
    text-align: center;
    margin-bottom: 80px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    color: #666;
    font-size: 16px;
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    margin-bottom: 80px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
    background-color: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    border-top: 4px solid #27ae60;
}

.contact-info h3 {
    margin-bottom: 30px;
    color: #2c3e50;
    font-size: 22px;
    font-weight: 600;
    border-bottom: 2px solid #27ae60;
    padding-bottom: 15px;
}

.contact-info p {
    margin-bottom: 20px;
    line-height: 1.6;
    color: #333;
    font-size: 15px;
}

/* 合规备案信息 */
.compliance-info {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #e0e0e0;
}

.compliance-info h4 {
    margin-bottom: 20px;
    color: #27ae60;
    font-size: 18px;
    font-weight: 600;
}

.compliance-info p {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

.contact-form {
    flex: 1;
    min-width: 300px;
    background-color: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    border-top: 4px solid #27ae60;
}

.contact-form h3 {
    margin-bottom: 30px;
    color: #2c3e50;
    font-size: 22px;
    font-weight: 600;
    border-bottom: 2px solid #27ae60;
    padding-bottom: 15px;
}

/* 智能客服样式 */
.ai-customer-service {
    margin-bottom: 80px;
}

.ai-customer-service h3 {
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 28px;
    font-weight: 600;
    text-align: center;
}

.ai-chatbot {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    overflow: hidden;
    border-top: 4px solid #27ae60;
}

.chatbot-header {
    background-color: #27ae60;
    color: #fff;
    padding: 25px;
    text-align: center;
}

.chatbot-header h4 {
    margin-bottom: 10px;
    font-size: 20px;
    font-weight: 600;
}

.chatbot-header p {
    margin: 0;
    font-size: 14px;
    opacity: 0.9;
}

.chatbot-body {
    padding: 30px;
    min-height: 250px;
}

.chatbot-message {
    margin-bottom: 25px;
}

.bot-message {
    background-color: #e8f5e8;
    padding: 20px;
    border-radius: 18px 18px 18px 4px;
    max-width: 80%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    align-self: flex-start;
}

.user-message {
    background-color: #e3f2fd;
    padding: 20px;
    border-radius: 18px 18px 4px 18px;
    max-width: 80%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    align-self: flex-end;
    margin-left: auto;
}

.chatbot-body {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.chatbot-input {
    display: flex;
    gap: 15px;
    margin-top: 40px;
}

.chatbot-input input {
    flex: 1;
    padding: 15px 20px;
    border: 1px solid #ddd;
    border-radius: 30px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s ease;
}

.chatbot-input input:focus {
    border-color: #27ae60;
}

.chatbot-input button {
    background-color: #27ae60;
    color: #fff;
    border: none;
    padding: 0 25px;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.chatbot-input button:hover {
    background-color: #229954;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
}

.chatbot-footer {
    background-color: #f8f9fa;
    padding: 20px;
    text-align: center;
    font-size: 14px;
    border-top: 1px solid #e0e0e0;
}

.chatbot-footer a {
    color: #27ae60;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.chatbot-footer a:hover {
    text-decoration: underline;
    color: #229954;
}

/* 数据安全与隐私保护 */
.data-security {
    background-color: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    border-top: 4px solid #27ae60;
}

.data-security h3 {
    margin-bottom: 25px;
    color: #2c3e50;
    font-size: 22px;
    font-weight: 600;
    border-bottom: 2px solid #27ae60;
    padding-bottom: 15px;
}

.data-security p {
    line-height: 1.6;
    color: #333;
    font-size: 15px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .contact-content {
        flex-direction: column;
    }
    
    .contact h2 {
        font-size: 28px;
    }
    
    .ai-customer-service h3,
    .data-security h3 {
        font-size: 20px;
    }
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group textarea {
    height: 100px;
    resize: vertical;
}

.submit-btn {
    background-color: #3498db;
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: #2980b9;
}

/* 药物警戒样式 */
.pharmacovigilance {
    padding: 100px 0;
    background-color: #f9f9f9;
}

.pharmacovigilance h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 36px;
    font-weight: 700;
}

.pharmacovigilance > .container > p {
    text-align: center;
    margin-bottom: 80px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    color: #666;
    font-size: 16px;
}

/* 药物警戒章节样式 */
.pv-section {
    margin-bottom: 60px;
    padding: 40px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    border-top: 4px solid #e74c3c;
}

.pv-section h3 {
    margin-bottom: 30px;
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
    border-bottom: 2px solid #e74c3c;
    padding-bottom: 15px;
}

.pv-section p {
    margin-bottom: 25px;
    line-height: 1.6;
    color: #333;
    font-size: 15px;
}

/* 列表样式 */
.pv-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 30px;
}

.pv-list li {
    margin-bottom: 20px;
    padding-left: 30px;
    position: relative;
    line-height: 1.6;
    color: #666;
    font-size: 15px;
}

.pv-list li:before {
    content: "•";
    color: #e74c3c;
    font-size: 24px;
    position: absolute;
    left: 0;
    top: -2px;
}

/* 报告渠道样式 */
.report-channels {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.channel-item {
    flex: 1;
    min-width: 300px;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-left: 4px solid #e74c3c;
}

.channel-item h4 {
    margin-bottom: 20px;
    color: #e74c3c;
    font-size: 18px;
    font-weight: 600;
}

.channel-item ul {
    list-style: none;
    padding-left: 0;
}

.channel-item li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
    color: #666;
}

.channel-item li:before {
    content: "-";
    color: #e74c3c;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 紧急提示样式 */
.emergency-note {
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 20px;
    margin-top: 40px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.emergency-note p {
    margin: 0;
    color: #856404;
    font-weight: 500;
    font-size: 15px;
}

/* 在线报告表单样式 */
.pv-content {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
}

.pv-form {
    flex: 1;
    min-width: 300px;
    background-color: #f8f9fa;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    border-top: 4px solid #e74c3c;
}

.form-note {
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.form-note p {
    margin-bottom: 10px;
    color: #856404;
    line-height: 1.6;
}

.form-note p strong {
    color: #725c02;
}

.pv-info {
    flex: 1;
    min-width: 300px;
    background-color: #f8f9fa;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    border-top: 4px solid #e74c3c;
}

.pv-info h4 {
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 18px;
    font-weight: 600;
}

.pv-info ul {
    list-style: none;
    padding-left: 0;
}

.pv-info li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
    color: #666;
    font-size: 14px;
}

.pv-info li:before {
    content: "•";
    color: #e74c3c;
    font-size: 18px;
    position: absolute;
    left: 0;
    top: 2px;
}

.pharmacovigilance .submit-btn {
    background-color: #e74c3c;
    border-radius: 30px;
    padding: 15px 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.pharmacovigilance .submit-btn:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .report-channels {
        flex-direction: column;
    }
    
    .pv-content {
        flex-direction: column;
    }
    
    .pv-section {
        padding: 20px;
    }
    
    .pharmacovigilance h2 {
        font-size: 28px;
    }
    
    .pv-section h3 {
        font-size: 20px;
    }
}

/* 页脚样式 */
footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 80px 0 30px;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #27ae60, #3498db);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.footer-info {
    flex: 1;
    min-width: 250px;
}

.footer-logo {
    margin-bottom: 25px;
}

.footer-logo-img {
    width: 160px;
    height: auto;
    object-fit: contain;
}

.footer-info h3 {
    margin-bottom: 25px;
    font-size: 20px;
    font-weight: 600;
    color: #27ae60;
}

.footer-info p {
    margin-bottom: 15px;
    line-height: 1.6;
    color: rgba(255,255,255,0.8);
    font-size: 14px;
}

.footer-links {
    flex: 1;
    min-width: 200px;
}

.footer-links h4 {
    margin-bottom: 25px;
    font-size: 16px;
    font-weight: 600;
    color: #27ae60;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
    position: relative;
    padding-left: 15px;
}

.footer-links a::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #27ae60;
    transition: transform 0.3s ease;
}

.footer-links a:hover {
    color: #27ae60;
    padding-left: 20px;
}

.footer-links a:hover::before {
    transform: translateX(5px);
}

.footer-pv {
    flex: 1;
    min-width: 200px;
}

.footer-pv h4 {
    margin-bottom: 25px;
    font-size: 16px;
    font-weight: 600;
    color: #27ae60;
}

.footer-pv p {
    margin-bottom: 25px;
    line-height: 1.6;
    color: rgba(255,255,255,0.8);
    font-size: 14px;
}

.pv-btn {
    display: inline-block;
    background-color: #e74c3c;
    color: #fff;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 14px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.pv-btn:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #34495e;
    position: relative;
    z-index: 2;
}

.footer-bottom p {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: #fff;
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-menu li {
        margin: 10px 0;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero h2 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }

    .about-content,
    .pv-content {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0;
    }

    .hero h2 {
        font-size: 24px;
    }

    .product-categories {
        grid-template-columns: 1fr;
    }

    .product-list {
        grid-template-columns: 1fr;
    }
}