/* 全局样式重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-left: -10px;
}

.logo-image {
    height: 32px;
    width: auto;
    border-radius: 6px;
    transition: transform 0.3s ease;
}

.logo-image:hover {
    transform: scale(1.05);
}

.nav-logo h2 {
    color: #667eea;
    font-size: 1.4rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.2rem;
    margin-right: -10px;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #667eea;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #667eea;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主要内容区域 */
main {
    margin-top: 70px;
}

/* Hero轮播图样式 */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.slide-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.slide-bg-1 {
    background: url('../image/(1).jpg') center/cover no-repeat;
}

.slide-bg-2 {
    background: url('../image/(4).jpg') center/cover no-repeat;
}

.slide-bg-3 {
    background: url('../image/(3).jpg') center/cover no-repeat;
}

.slide-content {
    text-align: center;
    color: white;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.slide-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.slide-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.cta-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.slider-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 3;
}

.prev-btn,
.next-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.prev-btn:hover,
.next-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: white;
    transform: scale(1.2);
}

/* 公司简介样式 */
.company-intro {
    padding: 80px 0;
    background: #f8f9fa;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-text h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 1.5rem;
}

.intro-text p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.intro-stats {
    display: flex;
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-item h3 {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: #666;
    font-size: 0.9rem;
}

.intro-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.store-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.image-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
}

/* 文章展示区样式 */
.articles-section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1rem;
    color: #666;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.article-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.article-image {
    height: 220px; /* 留出更多空白避免裁切 */
    padding: 16px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 8px 8px 0 0;
}

.article-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.article-image .image-placeholder {
    width: 60px;
    height: 60px;
    background: #667eea;
    border-radius: 10px;
    font-size: 1.5rem;
}

.article-content {
    padding: 1.5rem;
}

.article-content h3 {
    font-size: 1.3rem;
    color: #333;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.article-content p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: #999;
}

.article-category {
    background: #667eea;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.section-footer {
    text-align: center;
}

.view-all-btn {
    display: inline-block;
    padding: 12px 30px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.view-all-btn:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

/* 产品推荐样式 */
.products-preview {
    padding: 80px 0;
    background: #f8f9fa;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.product-image {
    height: 200px;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image .image-placeholder {
    width: 60px;
    height: 60px;
    background: #667eea;
    border-radius: 10px;
    font-size: 1.5rem;
}

.product-content {
    padding: 1.5rem;
    text-align: center;
}

.product-content h3 {
    font-size: 1.3rem;
    color: #333;
    margin-bottom: 1rem;
}

.product-content p {
    color: #666;
    margin-bottom: 1rem;
}

.product-price {
    font-size: 1.5rem;
    color: #667eea;
    font-weight: 700;
}

/* 招商联盟入口样式 */
.franchise-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2rem;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.feature-item i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.cta-button.large {
    padding: 18px 40px;
    font-size: 1.1rem;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-button.large:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 页脚样式 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #667eea;
}

.footer-section p {
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section ul li a:hover {
    opacity: 1;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: #667eea;
    color: white;
    text-align: center;
    line-height: 40px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .logo-image {
        height: 35px;
    }
    
    .nav-logo h2 {
        font-size: 1.5rem;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 1rem 0;
    }

    .slide-content h1 {
        font-size: 2.5rem;
    }

    .slide-content p {
        font-size: 1.1rem;
    }

    .intro-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .intro-stats {
        justify-content: center;
    }

    .store-image {
        max-width: 400px;
    }

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

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

    .cta-features {
        flex-direction: column;
        gap: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .logo-image {
        height: 30px;
    }
    
    .nav-logo h2 {
        font-size: 1.3rem;
    }

    .slide-content h1 {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .intro-text h2 {
        font-size: 2rem;
    }

    .cta-content h2 {
        font-size: 2rem;
    }

    .intro-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .store-image {
        max-width: 350px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 页面头部样式 */
.page-header {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* 文章筛选样式 */
.article-filters {
    padding: 40px 0;
    background: #f8f9fa;
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 10px 20px;
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-tab:hover,
.filter-tab.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

/* 文章列表样式 */
.articles-list {
    padding: 60px 0;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.meta-left {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.meta-right {
    display: flex;
    gap: 1rem;
    align-items: center;
    font-size: 0.9rem;
    color: #999;
}

.article-views {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.page-btn {
    padding: 8px 12px;
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.page-btn:hover,
.page-btn.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-ellipsis {
    padding: 8px 4px;
    color: #999;
}

/* 热门文章样式 */
.popular-articles {
    padding: 60px 0;
    background: #f8f9fa;
}

.popular-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.popular-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.popular-item:hover {
    transform: translateY(-2px);
}

.popular-rank {
    width: 40px;
    height: 40px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.popular-content h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.popular-content p {
    color: #666;
    font-size: 0.9rem;
}

/* 加盟优势样式 */
.franchise-advantages {
    padding: 80px 0;
}

.franchise-advantages .advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .franchise-advantages .advantages-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(6, 1fr);
    }
}

@media (max-width: 480px) {
    .franchise-advantages .advantages-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(6, 1fr);
        gap: 1.5rem;
    }
}

.advantage-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.advantage-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

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

/* 加盟流程样式 */
.franchise-process {
    padding: 80px 0;
    background: #f8f9fa;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1.5rem;
}

.step-content h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #333;
}

.step-content p {
    color: #666;
    line-height: 1.6;
}

/* 加盟条件样式 */
.franchise-requirements {
    padding: 4rem 0;
    background: #f8f9fa;
}

.requirements-content {
    margin-top: 3rem;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .requirements-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(4, 1fr);
    }
}

@media (max-width: 480px) {
    .requirements-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(4, 1fr);
        gap: 1.5rem;
    }
}

.requirement-category {
    background: #fff;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.requirement-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.requirement-category h3 {
    color: #333;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.requirement-category h3 i {
    color: #667eea;
    font-size: 1.2rem;
}

.requirements-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.requirement-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.requirement-item:hover {
    background: #e9ecef;
}

.requirement-item i {
    color: #28a745;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.requirement-item span {
    color: #333;
    font-size: 1rem;
    font-weight: 500;
}

/* 加盟表单样式 */
.franchise-form {
    padding: 80px 0;
    background: #f8f9fa;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.franchise-form-content {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #dc3545;
}

.field-error {
    color: #dc3545;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    line-height: 1.4;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.submit-btn,
.reset-btn {
    padding: 12px 30px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn {
    background: #667eea;
    color: white;
}

.submit-btn:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
}

.reset-btn {
    background: #6c757d;
    color: white;
}

.reset-btn:hover {
    background: #5a6268;
}

.form-error {
    background: #f8d7da;
    color: #721c24;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border: 1px solid #f5c6cb;
}

.form-error h4 {
    margin-bottom: 0.5rem;
}

.form-error ul {
    margin: 0;
    padding-left: 1.5rem;
}


/* 产品分类样式 */
.product-categories {
    padding: 40px 0;
    background: #f8f9fa;
}


/* 加载状态样式 */
.loading-state {
    text-align: center;
    padding: 4rem 2rem;
    color: #666;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 空状态样式 */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: #666;
}

.empty-state i {
    font-size: 4rem;
    color: #ddd;
    margin-bottom: 1rem;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.empty-state p {
    color: #999;
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.category-tab {
    padding: 10px 20px;
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.category-tab:hover,
.category-tab.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

/* 产品特色样式 */
.product-features {
    padding: 80px 0;
    background: #f8f9fa;
}

.features-grid {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .features-grid {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .features-grid {
        flex-direction: column;
        gap: 1.5rem;
    }
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    flex: 1;
    min-width: 200px;
    max-width: 250px;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* 产品卡片增强样式 */
.product-card {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* 产品详情模态框样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: white;
    border-radius: 20px;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid #e9ecef;
}

.modal-header h2 {
    font-size: 1.8rem;
    color: #333;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #999;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: #f8f9fa;
    color: #333;
}

.modal-body {
    padding: 2rem;
}

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.product-detail-image {
    position: relative;
}

.product-detail-image .image-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.product-detail-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.product-detail-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.product-detail-meta .product-category {
    background: #667eea;
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.product-detail-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 1rem;
}

.product-detail-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.product-detail-features .feature-tag {
    background: #f8f9fa;
    color: #667eea;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid #e9ecef;
    font-weight: 500;
}

/* 产品详情内容样式 */
.product-detail-content .detail-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #f0f0f0;
}

.product-detail-content .detail-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.product-detail-content .detail-section h4 {
    color: #333;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-detail-content .detail-section h4::before {
    content: '';
    width: 4px;
    height: 20px;
    background: #667eea;
    border-radius: 2px;
}

.product-detail-content .detail-section p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 0;
}

.benefits-list,
.suitable-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.benefits-list li,
.suitable-list li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.5rem 0;
    color: #666;
    line-height: 1.5;
}

.benefits-list li i,
.suitable-list li i {
    color: #667eea;
    font-size: 0.9rem;
    width: 16px;
    text-align: center;
}

.usage-text {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    font-style: italic;
    color: #555;
}

.product-detail-price {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.product-detail-price .current-price {
    font-size: 2rem;
    color: #667eea;
    font-weight: 700;
}

.product-detail-price .original-price {
    font-size: 1.2rem;
    color: #999;
    text-decoration: line-through;
}

.product-detail-actions {
    display: flex;
    gap: 1rem;
}

.product-detail-actions .btn-primary,
.product-detail-actions .btn-secondary {
    flex: 1;
    padding: 15px 25px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.product-detail-actions .btn-primary {
    background: #667eea;
    color: white;
}

.product-detail-actions .btn-primary:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.product-detail-actions .btn-secondary {
    background: #f8f9fa;
    color: #667eea;
    border: 2px solid #667eea;
}

.product-detail-actions .btn-secondary:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

.out-of-stock {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #dc3545;
    color: white;
    padding: 4px 8px;
    border-radius: 15px;
    font-size: 0.8rem;
    z-index: 2;
}

.product-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 2;
}

.discount-badge {
    background: #ff6b6b;
    color: white;
    padding: 4px 8px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.feature-tag {
    background: #e9ecef;
    color: #495057;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 1rem 0;
}

.stars {
    color: #ffc107;
}

.rating-text {
    font-size: 0.9rem;
    color: #666;
}

.product-price {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 1rem 0;
}

.current-price {
    font-size: 1.5rem;
    color: #667eea;
    font-weight: 700;
}

.original-price {
    font-size: 1rem;
    color: #999;
    text-decoration: line-through;
}

.product-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn-primary,
.btn-secondary {
    flex: 1;
    padding: 10px 15px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: #5a6fd8;
}

.btn-secondary {
    background: #f8f9fa;
    color: #667eea;
    border: 1px solid #667eea;
}

.btn-secondary:hover:not(:disabled) {
    background: #667eea;
    color: white;
}

.btn-primary:disabled,
.btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 购买指南样式 */
.purchase-guide {
    padding: 80px 0;
}

.guide-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.guide-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.guide-step {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.guide-step .step-number {
    width: 50px;
    height: 50px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: bold;
    flex-shrink: 0;
}

.guide-step .step-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.guide-step .step-content p {
    color: #666;
    line-height: 1.6;
}

.guide-contact {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    height: fit-content;
}

.guide-contact h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.guide-contact p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #667eea;
    font-weight: 500;
}

.contact-item i {
    width: 20px;
    text-align: center;
}

/* 公司概览样式 */
.company-overview {
    padding: 80px 0;
}

.overview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.overview-text h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 1.5rem;
}

.overview-text p {
    font-size: 1rem;
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.overview-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.company-image {
    width: 100%;
    max-width: 500px;
    height: 400px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.company-image:hover {
    transform: scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

/* 企业理念样式 */
.company-values {
    padding: 80px 0;
    background: #f8f9fa;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .values-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(6, 1fr);
    }
}

@media (max-width: 480px) {
    .values-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(6, 1fr);
        gap: 1.5rem;
    }
}

.value-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.value-card:hover {
    transform: translateY(-5px);
}

.value-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.value-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.value-card p {
    color: #666;
    line-height: 1.6;
    font-size: 1rem;
}

/* 发展历程样式 */
.company-timeline {
    padding: 80px 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e9ecef;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-year {
    width: 80px;
    height: 80px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: bold;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.timeline-content {
    flex: 1;
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.timeline-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
}

.timeline-animate {
    animation: timelineSlideIn 0.6s ease-out;
}

@keyframes timelineSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 团队介绍样式 */
.team-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.team-member {
    text-align: center;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
}

.member-photo {
    height: 200px;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.member-photo .image-placeholder {
    width: 80px;
    height: 80px;
    background: #667eea;
    border-radius: 50%;
    font-size: 2rem;
}

.member-info {
    padding: 1.5rem;
}

.member-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.member-position {
    color: #667eea;
    font-weight: 600;
    margin-bottom: 1rem;
}

.member-desc {
    color: #666;
    line-height: 1.6;
    font-size: 0.9rem;
}

/* 案例分享页面样式 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0 80px;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.page-header .subtitle {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.page-header .description {
    font-size: 1.1rem;
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}


/* 文章列表样式 */
.articles-list {
    padding: 60px 0;
    background: #fff;
}

.articles-list .container {
    max-width: 100%;
    padding: 0 20px;
}

.articles-container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 40px;
}

.article-item,
.case-article {
    display: flex;
    align-items: flex-start;
    padding: 0.55rem 0; /* 使用护眼知识当前的卡片高度 */
    border-bottom: 1px solid #f0f0f0; /* 更浅分隔线 */
    transition: padding-left 0.2s ease;
    cursor: pointer;
    background: transparent;
}

.article-item:hover,
.case-article:hover {
    padding-left: 0.5rem;
}

.article-item:last-child,
.case-article:last-child {
    border-bottom: none;
}

.article-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem; /* 与护眼知识卡片一致的内部间距 */
    min-width: 0;
    width: 100%;
    overflow: visible;
}

.article-header {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.article-date {
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 0.1rem;
}

.articles-list .article-title {
    font-size: 0.9rem !important; /* 护眼知识标题放大 */
    font-weight: 400;
    color: #333;
    line-height: 1.5;
    margin: 0;
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
}

.cases-list .article-title {
    font-size: 0.75rem !important;
    font-weight: 400;
    color: #333;
    line-height: 1.5;
    margin: 0;
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
}

.articles-list .article-title a,
.cases-list .article-title a {
    text-decoration: none;
    color: #333;
    transition: color 0.2s ease;
    display: block;
    width: 100%;
}

.articles-list .article-title a:hover,
.cases-list .article-title a:hover {
    color: #667eea;
}

.cases-list .article-title a {
    white-space: normal;
    line-height: 1.6;
    font-size: 0.95rem;
}

.case-number-highlight {
    color: #2b73ff;
    font-weight: 600;
}

.article-views {
    font-size: 0.8rem;
    color: #999;
    margin-top: 0.1rem;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.8rem;
    color: #999;
    flex-wrap: wrap;
}

.article-author {
    color: #667eea;
    font-weight: 500;
}

.article-location {
    color: #999;
}

.original-tag {
    background: #667eea;
    color: white;
    padding: 2px 6px;
    border-radius: 8px;
    font-size: 0.7rem;
    font-weight: 500;
}

.article-summary {
    flex: 1;
}

.article-summary p {
    color: #666;
    line-height: 1.5;
    font-size: 1rem;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-top: 0.5rem;
}

.tag {
    background: #f0f4ff;
    color: #667eea;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 500;
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
}

.article-stats {
    display: flex;
    gap: 1rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.2rem;
    color: #999;
    font-size: 0.8rem;
}

.stat-item i {
    color: #ccc;
    font-size: 0.7rem;
}

.read-more-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 6px 16px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.read-more-btn:hover {
    background: #5a6fd8;
    transform: translateY(-1px);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.6rem;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}

.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    color: #4b5563;
    height: 36px;
    min-width: 36px;
    padding: 0 14px;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.page-btn:hover:not(:disabled):not(.active) {
    transform: translateY(-1px);
    background: #f8fafc;
    border-color: #cbd5e1;
    color: #3b82f6;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
}

.page-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.25);
}

.page-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #5a6fd8 100%);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.35);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* 文章内容样式 */
.highlight-box {
    background: #f0f4ff;
    border-left: 4px solid #667eea;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 8px 8px 0;
}

.highlight-box h3 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.highlight-box ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.highlight-box li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.case-image {
    margin: 2rem 0;
    text-align: center;
}

.case-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.image-caption {
    margin-top: 0.8rem;
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
}

.case-timeline {
    margin: 2rem 0;
}

.timeline-item {
    display: flex;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #f0f0f0;
}

.timeline-item:last-child {
    border-bottom: none;
}

.timeline-date {
    background: #667eea;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-right: 1.5rem;
    flex-shrink: 0;
    height: fit-content;
}

.timeline-content h4 {
    color: #333;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.prevention-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.method-item {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.method-item h4 {
    color: #333;
    margin-bottom: 0.8rem;
    font-size: 1rem;
}

.method-item p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 文章内容中的列表样式 */
.case-article ul,
.case-article ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.case-article li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.case-article h3 {
    color: #333;
    margin: 2rem 0 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.case-article p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.case-article strong {
    color: #333;
    font-weight: 600;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }
    
    .page-header .subtitle {
        font-size: 1.1rem;
    }
    
    .articles-container {
        padding: 0 1.5rem;
    }
    
    .article-item,
    .case-article {
        padding: 1rem 0;
    }
    
    .articles-list .article-title {
        font-size: 0.84rem !important;
        white-space: normal;
        overflow: visible;
        text-overflow: clip;
    }

    .cases-list .article-title {
        font-size: 0.72rem !important;
        white-space: normal;
        overflow: visible;
        text-overflow: clip;
    }
    
    .article-date {
        font-size: 0.8rem;
    }
    
    .article-views {
        font-size: 0.8rem;
    }
    
    .article-stats {
        gap: 0.8rem;
    }
    
    .stat-item {
        font-size: 0.75rem;
    }
    
    .read-more-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
        align-self: flex-end;
    }
    
    .pagination {
        gap: 0.3rem;
    }
    
    .page-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}

/* 联系我们样式 */
.contact-section {
    padding: 80px 0;
    background: #ffffff;
}

.contact-content {
    max-width: 1400px;
    margin: 3rem auto 0;
    display: flex;
    justify-content: center;
    width: 100%;
    padding: 0 3rem;
}

.contact-content .container {
    display: flex;
    justify-content: center;
    width: 100%;
}

.contact-info {
    display: flex;
    flex-direction: row;
    gap: 3rem;
    width: auto;
    justify-content: center;
    flex-wrap: nowrap;
    align-items: stretch;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.2rem;
    padding: 3rem 4rem;
    transition: all 0.3s ease;
    border-radius: 15px;
    flex: 1 1 0;
    min-width: 320px;
    max-width: none;
    background: #ffffff;
    border: 1px solid #f0f0f0;
}

.contact-item:hover {
    background: #f8f9fa;
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.15);
    border-color: #e0e0e0;
}

.contact-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    flex-shrink: 0;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.25);
    transition: all 0.3s ease;
}

.contact-item:hover .contact-icon {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.contact-details {
    flex: 1;
    width: 100%;
}

.contact-details h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.contact-details p {
    color: #555;
    margin-bottom: 0.5rem;
    line-height: 1.8;
    font-size: 1.05rem;
    white-space: nowrap;
}

.contact-details p:last-child {
    margin-bottom: 0;
}

.contact-form {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
}

.contact-form h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #333;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #667eea;
}

.contact-form .submit-btn {
    width: 100%;
    padding: 15px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.contact-form .submit-btn:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .products-controls {
        flex-direction: column;
        gap: 1rem;
    }
    
    .search-box {
        max-width: 100%;
        margin-right: 0;
    }
    
    .product-detail-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .modal-content {
        margin: 10px;
        max-height: 95vh;
    }
    
    .modal-header {
        padding: 1.5rem 1.5rem 1rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .product-detail-actions {
        flex-direction: column;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: row !important;
        padding-left: 60px;
    }
    
    .timeline-year {
        position: absolute;
        left: -40px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        padding: 0 2rem;
    }
    
    .contact-section {
        padding: 60px 0;
    }
    
    .contact-info {
        gap: 2rem;
    }
    
    .contact-item {
        padding: 2.5rem 2rem;
        gap: 1rem;
        min-width: 220px;
    }
    
    .contact-icon {
        width: 60px;
        height: 60px;
        font-size: 1.4rem;
    }
    
    .contact-details h3 {
        font-size: 1.2rem;
    }
    
    .contact-details p {
        font-size: 1rem;
    }
    
    .guide-content {
        grid-template-columns: 1fr;
    }
    
    .overview-content {
        grid-template-columns: 1fr;
    }
    
    .company-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: 2rem;
    }
    
    .contact-section {
        padding: 40px 0;
    }
    
    .contact-content {
        margin-top: 2rem;
        padding: 0 1rem;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 1.5rem;
        align-items: stretch;
    }
    
    .contact-item {
        padding: 2rem 1.5rem;
        gap: 1rem;
        width: 100%;
        max-width: 100%;
    }
    
    .contact-icon {
        width: 60px;
        height: 60px;
        font-size: 1.4rem;
    }
    
    .contact-details h3 {
        font-size: 1.2rem;
        margin-bottom: 0.8rem;
    }
    
    .contact-details p {
        font-size: 1rem;
    }
    
    .franchise-form-content {
        padding: 2rem 1rem;
    }
    
    .filter-tabs,
    .category-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-tab,
    .category-tab {
        width: 200px;
        text-align: center;
    }
}

/* 文章详情页面样式 */
.breadcrumb {
    padding: 100px 0 20px;
    background: #f8f9fa;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.breadcrumb-nav a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-nav a:hover {
    color: #5a6fd8;
}

.breadcrumb-nav .separator {
    color: #999;
}

.article-detail {
    padding: 40px 0;
}

.article-detail .container {
    display: block;
    max-width: 800px;
    margin: 0 auto;
}

.article-content {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.article-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e9ecef;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #666;
}

.article-category {
    background: #667eea;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.article-views {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.article-title {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-author {
    color: #666;
    font-size: 0.9rem;
}

.article-image {
    margin-bottom: 2rem;
    border-radius: 10px;
    overflow: hidden;
}

.article-image .image-placeholder {
    height: 300px;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #999;
}

.article-body {
    line-height: 1.8;
    color: #333;
    margin-bottom: 2rem;
}

.article-body h2 {
    font-size: 1.5rem;
    color: #333;
    margin: 2rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #667eea;
}

.article-body h3 {
    font-size: 1.3rem;
    color: #333;
    margin: 1.5rem 0 1rem;
}

.article-body p {
    margin-bottom: 1rem;
}

.article-body ul,
.article-body ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.article-body li {
    margin-bottom: 0.5rem;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.tag {
    background: #f8f9fa;
    color: #667eea;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid #e9ecef;
}

.article-actions {
    display: flex;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e9ecef;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 10px 20px;
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.action-btn:hover {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.action-btn.liked {
    background: #ff6b6b;
    color: white;
    border-color: #ff6b6b;
}

.action-btn.collected {
    background: #ffc107;
    color: white;
    border-color: #ffc107;
}

.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-section {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.sidebar-section h3 {
    font-size: 1.2rem;
    color: #333;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #667eea;
}

.related-article-item {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #f0f0f0;
}

.related-article-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.related-article-item a {
    text-decoration: none;
    color: #333;
    transition: color 0.3s ease;
}

.related-article-item a:hover {
    color: #667eea;
}

.related-article-item h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.related-article-item .article-meta {
    font-size: 0.8rem;
    color: #999;
    margin: 0;
}

.popular-article-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #f0f0f0;
}

.popular-article-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.popular-article-item .rank {
    width: 30px;
    height: 30px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.popular-article-item a {
    text-decoration: none;
    color: #333;
    transition: color 0.3s ease;
    flex: 1;
}

.popular-article-item a:hover {
    color: #667eea;
}

.popular-article-item h4 {
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
    line-height: 1.3;
}

.popular-article-item .views {
    font-size: 0.8rem;
    color: #999;
}

.contact-info-sidebar p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    color: #666;
}

.contact-info-sidebar i {
    width: 16px;
    color: #667eea;
}


/* 错误页面样式 */
.error-message {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.error-message i {
    font-size: 4rem;
    color: #ffc107;
    margin-bottom: 1rem;
}

.error-message h2 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 2rem;
}

.back-btn {
    display: inline-block;
    padding: 12px 30px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.back-btn:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .article-detail .container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-actions {
        flex-direction: column;
    }
    
    .action-btn {
        justify-content: center;
    }
    
    .breadcrumb-nav {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .article-content {
        padding: 1.5rem;
    }
    
    .article-title {
        font-size: 1.8rem;
    }
    
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .sidebar-section {
        padding: 1rem;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #5a6fd8;
}

/* 消息提示动画 */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutRight {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* 产品图片样式 */
.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
}

/* 隐藏类 */
.hidden {
    display: none !important;
}

/* 成功模态框样式 */
.success-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.success-modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.success-modal-content {
    background: white;
    border-radius: 20px;
    max-width: 500px;
    width: 100%;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.9) translateY(-50px);
    transition: all 0.3s ease;
}

.success-modal-overlay.show .success-modal-content {
    transform: scale(1) translateY(0);
}

.success-icon {
    color: #28a745;
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.success-modal-content h2 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 1.5rem;
}

.success-details {
    margin-bottom: 2rem;
    text-align: left;
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 10px;
}

.success-details p {
    margin-bottom: 0.8rem;
    color: #666;
    line-height: 1.6;
}

.success-details strong {
    color: #333;
}

.success-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.success-actions .btn-primary,
.success-actions .btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 100px;
}

.success-actions .btn-primary {
    background: #667eea;
    color: white;
}

.success-actions .btn-primary:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
}

.success-actions .btn-secondary {
    background: #f8f9fa;
    color: #667eea;
    border: 2px solid #667eea;
}

.success-actions .btn-secondary:hover {
    background: #667eea;
    color: white;
}

/* 表单加载状态 */
.submit-btn.loading {
    position: relative;
    color: transparent;
}

.submit-btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #ffffff;
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* 防控视训内容样式 - 在产品中心页面中显示 */
.prevention-content {
    width: 100%;
}

/* 家庭视训内容样式 - 在产品中心页面中显示 */
.family-content {
    width: 100%;
}

/* 脑眼营养内容样式 - 在产品中心页面中显示 */
.nutrition-content {
    width: 100%;
}

.prevention-content .prevention-header {
    background: linear-gradient(135deg, #4A90E2 0%, #7B68EE 100%);
    color: white;
    padding: 60px 0 40px;
    position: relative;
    overflow: hidden;
    margin-top: 2rem;
}

.prevention-content .prevention-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-100px); }
}

.prevention-content .header-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.prevention-content .header-text h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.prevention-content .subtitle {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #FFD700;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.prevention-content .description {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.6;
}

.prevention-content .hero-image {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.prevention-content .hero-image:hover {
    transform: scale(1.02);
}

/* 防控项目展示 */
.prevention-content .prevention-projects {
    padding: 40px 0;
    background: #f8f9fa;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.project-header {
    background: linear-gradient(135deg, #4A90E2 0%, #7B68EE 100%);
    color: white;
    padding: 1.5rem;
    text-align: center;
}

.project-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
}

.project-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

.project-card:hover .project-img {
    transform: scale(1.05);
}

.project-content {
    padding: 2rem;
}

.project-content p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.project-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-features .feature-tag {
    background: linear-gradient(135deg, #4A90E2 0%, #7B68EE 100%);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* 训练优势 */
.prevention-content .training-advantages {
    padding: 40px 0;
    background: white;
}

.prevention-content .advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-item {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    background: #f8f9fa;
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #4A90E2 0%, #7B68EE 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
    transition: transform 0.3s ease;
}

.advantage-item:hover .advantage-icon {
    transform: scale(1.1);
}

.advantage-item h3 {
    font-size: 1.3rem;
    color: #333;
    margin-bottom: 1rem;
    font-weight: 600;
}

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

/* 联系我们 */
.prevention-content .contact-section {
    padding: 40px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 1rem;
}

.contact-info p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.contact-method:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.contact-method i {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #4A90E2 0%, #7B68EE 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-method span {
    font-size: 1.1rem;
    font-weight: 500;
    color: #333;
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.contact-form h3 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 2rem;
    text-align: center;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #4A90E2;
    background: white;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.contact-form .submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #4A90E2 0%, #7B68EE 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.contact-form .submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(74, 144, 226, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .prevention-content .header-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .prevention-content .header-text h1 {
        font-size: 2rem;
    }
    
    .prevention-content .subtitle {
        font-size: 1.1rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-methods {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .prevention-content .header-text h1 {
        font-size: 1.8rem;
    }
    
    .project-content {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 2rem 1.5rem;
    }
}

/* 家庭视训页面专用样式 */
.family-content .family-header {
    background: linear-gradient(135deg, #FF6B6B 0%, #FF8E8E 100%);
    color: white;
    padding: 60px 0 40px;
    position: relative;
    overflow: hidden;
    margin-top: 2rem;
}

.family-content .family-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s infinite linear;
}

.family-content .header-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.family-content .header-text h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.family-content .subtitle {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #FFD700;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.family-content .description {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.6;
}

.family-content .hero-image {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.family-content .hero-image:hover {
    transform: scale(1.02);
}

/* 产品特色展示 */
.family-content .product-features {
    padding: 40px 0;
    background: #f8f9fa;
}

.family-content .family-products {
    padding: 40px 0;
    background: #ffffff;
}

.family-content .family-products .products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}

.family-content .family-products .product-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: transform .3s ease, box-shadow .3s ease;
}

.family-content .family-products .product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(0,0,0,0.12);
}

.family-content .family-products .product-image {
    height: 200px;
    background: #f6f8fb;
    display: flex;
    align-items: center;
    justify-content: center;
}

.family-content .family-products .product-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.family-content .family-products .product-info {
    padding: 1.25rem 1.25rem 1.5rem;
}

.family-content .family-products .product-info h3 {
    font-size: 1.1rem;
    margin-bottom: .5rem;
    color: #333;
}

.family-content .family-products .product-desc {
    color: #666;
    line-height: 1.6;
    font-size: .95rem;
    margin-bottom: .75rem;
}

.family-content .family-products .product-features {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}

.family-content .family-products .feature-tag {
    background: #f0f4ff;
    color: #3b5bdb;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: .85rem;
}

.family-content .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.family-content .feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.family-content .feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.family-content .feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #FF6B6B 0%, #FF8E8E 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.family-content .feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.family-content .feature-card h3 {
    font-size: 1.3rem;
    color: #333;
    margin-bottom: 1rem;
    font-weight: 600;
}

.family-content .feature-card p {
    color: #666;
    line-height: 1.6;
}

/* 产品优势 */
.family-content .product-advantages {
    padding: 40px 0;
    background: white;
}

/* 使用指南 */
.family-content .usage-guide {
    padding: 40px 0;
    background: #f8f9fa;
}

.family-content .guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.family-content .step-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.family-content .step-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.family-content .step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #FF6B6B 0%, #FF8E8E 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.family-content .step-content h3 {
    font-size: 1.3rem;
    color: #333;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.family-content .step-content p {
    color: #666;
    line-height: 1.6;
}

/* 联系我们 */
.family-content .contact-section {
    padding: 40px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* 家庭视训响应式设计 */
@media (max-width: 768px) {
    .family-content .header-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .family-content .header-text h1 {
        font-size: 2rem;
    }
    
    .family-content .subtitle {
        font-size: 1.1rem;
    }
    
    .family-content .features-grid {
        grid-template-columns: 1fr;
    }
    
    .family-content .guide-steps {
        grid-template-columns: 1fr;
    }
    
    .family-content .step-item {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .family-content .header-text h1 {
        font-size: 1.8rem;
    }
    
    .family-content .feature-card {
        padding: 1.5rem;
    }
    
    .family-content .step-item {
        padding: 1.5rem;
    }
}

/* 蒸汽雾化页面专用样式 */
.steam-content .steam-header {
    background: linear-gradient(135deg, #87CEEB 0%, #4682B4 100%);
    color: white;
    padding: 60px 0 40px;
    position: relative;
    overflow: hidden;
    margin-top: 2rem;
}

.steam-content .steam-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s infinite linear;
}

.steam-content .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    position: relative;
    z-index: 2;
}

.steam-content .header-text h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.steam-content .subtitle {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.steam-content .description {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.9;
}

.steam-content .hero-image {
    max-width: 300px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.steam-content .steam-products {
    padding: 60px 0;
    background: #f8f9fa;
}

.steam-content .products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.steam-content .product-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.steam-content .product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.steam-content .product-image {
    flex-shrink: 0;
}

.steam-content .product-image img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    border-radius: 15px;
}

.steam-content .product-info h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.steam-content .product-desc {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.steam-content .product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.steam-content .feature-tag {
    background: linear-gradient(135deg, #87CEEB, #4682B4);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
}

.steam-content .steam-advantages {
    padding: 60px 0;
    background: white;
}

.steam-content .advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.steam-content .advantage-item {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    background: linear-gradient(135deg, #f0f8ff, #e6f3ff);
    transition: transform 0.3s ease;
}

.steam-content .advantage-item:hover {
    transform: translateY(-5px);
}

.steam-content .advantage-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.steam-content .advantage-item h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

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

.steam-content .steam-guide {
    padding: 60px 0;
    background: #f8f9fa;
}

.steam-content .guide-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.steam-content .step-item {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.steam-content .step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #87CEEB, #4682B4);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.steam-content .step-content h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.steam-content .step-content p {
    color: #666;
    line-height: 1.6;
}

.steam-content .steam-contact {
    padding: 60px 0;
    background: white;
}

.steam-content .contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.steam-content .contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.steam-content .contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f0f8ff, #e6f3ff);
    border-radius: 15px;
}

.steam-content .contact-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.steam-content .contact-details h3 {
    font-size: 1.2rem;
    color: #2c3e50;
    margin-bottom: 0.3rem;
}

.steam-content .contact-details p {
    color: #666;
    margin: 0;
}

.steam-content .contact-form {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
}

.steam-content .form-group {
    margin-bottom: 1.5rem;
}

.steam-content .form-group input,
.steam-content .form-group select,
.steam-content .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.steam-content .form-group input:focus,
.steam-content .form-group select:focus,
.steam-content .form-group textarea:focus {
    outline: none;
    border-color: #87CEEB;
}

.steam-content .submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #87CEEB, #4682B4);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.steam-content .submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(135, 206, 235, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .steam-content .header-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .steam-content .header-text h1 {
        font-size: 2.5rem;
    }
    
    .steam-content .products-grid {
        grid-template-columns: 1fr;
    }
    
    .steam-content .product-card {
        flex-direction: column;
        text-align: center;
    }
    
    .steam-content .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .steam-content .step-item {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .steam-content .header-text h1 {
        font-size: 2rem;
    }
    
    .steam-content .subtitle {
        font-size: 1.1rem;
    }
    
    .steam-content .product-card {
        padding: 1.5rem;
    }
    
    .steam-content .advantage-item {
        padding: 1.5rem;
    }
}

/* 护眼书房页面专用样式 */
.study-content .study-header {
    background: linear-gradient(135deg, #4A90E2 0%, #2E5BBA 100%);
    color: white;
    padding: 60px 0 40px;
    position: relative;
    overflow: hidden;
    margin-top: 2rem;
}

.study-content .study-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect x="10" y="10" width="8" height="8" fill="rgba(255,255,255,0.1)"/><rect x="30" y="20" width="6" height="6" fill="rgba(255,255,255,0.1)"/><rect x="60" y="15" width="10" height="10" fill="rgba(255,255,255,0.1)"/><rect x="80" y="25" width="8" height="8" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 25s infinite linear;
}

.study-content .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    position: relative;
    z-index: 2;
}

.study-content .header-text h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.study-content .subtitle {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.study-content .description {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.9;
}

.study-content .hero-image {
    max-width: 400px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.study-content .study-products {
    padding: 60px 0;
    background: #f8f9fa;
}

.study-content .products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.study-content .product-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.study-content .product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.study-content .product-image {
    flex-shrink: 0;
}

.study-content .product-image img {
    width: 150px;
    height: 150px;
    object-fit: contain;
    border-radius: 15px;
}

.study-content .product-info h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.study-content .product-desc {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.study-content .product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.study-content .feature-tag {
    background: linear-gradient(135deg, #4A90E2, #2E5BBA);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
}

.study-content .study-principles {
    padding: 60px 0;
    background: white;
}

.study-content .principles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.study-content .principle-item {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    background: linear-gradient(135deg, #f0f4ff, #e6edff);
    transition: transform 0.3s ease;
    border: 2px solid transparent;
}

.study-content .principle-item:hover {
    transform: translateY(-5px);
    border-color: #4A90E2;
}

.study-content .principle-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.study-content .principle-item h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.study-content .principle-item p {
    color: #666;
    line-height: 1.6;
}

.study-content .study-advantages {
    padding: 60px 0;
    background: #f8f9fa;
}

.study-content .advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.study-content .advantage-item {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    background: white;
    transition: transform 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.study-content .advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.study-content .advantage-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.study-content .advantage-item h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

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

.study-content .study-scenarios {
    padding: 60px 0;
    background: white;
}

.study-content .scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.study-content .scenario-item {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    transition: transform 0.3s ease;
}

.study-content .scenario-item:hover {
    transform: translateY(-5px);
}

.study-content .scenario-image {
    margin-bottom: 1rem;
}

.study-content .scenario-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.study-content .scenario-item h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.study-content .scenario-item p {
    color: #666;
    line-height: 1.6;
}

.study-content .study-contact {
    padding: 60px 0;
    background: #f8f9fa;
}

.study-content .contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.study-content .contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.study-content .contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.study-content .contact-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.study-content .contact-details h3 {
    font-size: 1.2rem;
    color: #2c3e50;
    margin-bottom: 0.3rem;
}

.study-content .contact-details p {
    color: #666;
    margin: 0;
}

.study-content .contact-form {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.study-content .form-group {
    margin-bottom: 1.5rem;
}

.study-content .form-group input,
.study-content .form-group select,
.study-content .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.study-content .form-group input:focus,
.study-content .form-group select:focus,
.study-content .form-group textarea:focus {
    outline: none;
    border-color: #4A90E2;
}

.study-content .submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #4A90E2, #2E5BBA);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.study-content .submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .study-content .header-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .study-content .header-text h1 {
        font-size: 2.5rem;
    }
    
    .study-content .products-grid {
        grid-template-columns: 1fr;
    }
    
    .study-content .product-card {
        flex-direction: column;
        text-align: center;
    }
    
    .study-content .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .study-content .principles-grid {
        grid-template-columns: 1fr;
    }
    
    .study-content .scenarios-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .study-content .header-text h1 {
        font-size: 2rem;
    }
    
    .study-content .subtitle {
        font-size: 1.1rem;
    }
    
    .study-content .product-card {
        padding: 1.5rem;
    }
    
    .study-content .principle-item {
        padding: 1.5rem;
    }
    
    .study-content .advantage-item {
        padding: 1.5rem;
    }
}

/* 脑眼营养页面专用样式 */
.nutrition-content .nutrition-header {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: white;
    padding: 60px 0 40px;
    position: relative;
    overflow: hidden;
    margin-top: 2rem;
}

.nutrition-content .nutrition-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s infinite linear;
}

.nutrition-content .header-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.nutrition-content .header-text h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.nutrition-content .subtitle {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #FF6B6B;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.nutrition-content .description {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.6;
}

.nutrition-content .hero-image {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.nutrition-content .hero-image:hover {
    transform: scale(1.02);
}

/* 核心产品展示 */
.nutrition-content .nutrition-products {
    padding: 40px 0;
    background: #f8f9fa;
}

.nutrition-content .products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.nutrition-content .nutrition-product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.nutrition-content .nutrition-product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.nutrition-content .product-image {
    height: 250px;
    overflow: hidden;
    position: relative;
}

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

.nutrition-content .nutrition-product-card:hover .product-img {
    transform: scale(1.05);
}

.nutrition-content .product-content {
    padding: 2rem;
}

.nutrition-content .product-content h3 {
    font-size: 1.4rem;
    color: #333;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.nutrition-content .tagline {
    color: #666;
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.nutrition-content .features-list {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.nutrition-content .features-list li {
    display: flex;
    align-items: center;
    margin-bottom: 0.8rem;
    color: #555;
    font-size: 0.95rem;
}

.nutrition-content .features-list li i {
    color: #FFD700;
    margin-right: 0.8rem;
    font-size: 1rem;
}

/* 营养优势 */
.nutrition-content .nutrition-advantages {
    padding: 40px 0;
    background: white;
}

/* 营养知识 */
.nutrition-content .nutrition-knowledge {
    padding: 40px 0;
    background: #f8f9fa;
}

.nutrition-content .knowledge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.nutrition-content .knowledge-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.nutrition-content .knowledge-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.nutrition-content .knowledge-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
    transition: transform 0.3s ease;
}

.nutrition-content .knowledge-item:hover .knowledge-icon {
    transform: scale(1.1);
}

.nutrition-content .knowledge-item h3 {
    font-size: 1.3rem;
    color: #333;
    margin-bottom: 1rem;
    font-weight: 600;
}

.nutrition-content .knowledge-item p {
    color: #666;
    line-height: 1.6;
}

/* 联系我们 */
.nutrition-content .contact-section {
    padding: 40px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* 脑眼营养响应式设计 */
@media (max-width: 768px) {
    .nutrition-content .header-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .nutrition-content .header-text h1 {
        font-size: 2rem;
    }
    
    .nutrition-content .subtitle {
        font-size: 1.1rem;
    }
    
    .nutrition-content .products-grid {
        grid-template-columns: 1fr;
    }
    
    .nutrition-content .knowledge-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-methods {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .nutrition-content .header-text h1 {
        font-size: 1.8rem;
    }
    
    .nutrition-content .product-content {
        padding: 1.5rem;
    }
    
    .nutrition-content .knowledge-item {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 2rem 1.5rem;
    }
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: #fff;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    text-align: center;
    position: relative;
    animation: slideIn 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal-content h3 {
    color: #333;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.modal-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.modal-content p {
    color: #666;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    position: absolute;
    top: 10px;
    right: 15px;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { 
        opacity: 0;
        transform: translateY(-50px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .modal-content {
        margin: 10% auto;
        padding: 1.5rem;
        width: 95%;
    }
    
    .modal-content h3 {
        font-size: 1.3rem;
    }
    
    .modal-content p {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .modal-content {
        margin: 15% auto;
        padding: 1rem;
    }
    
    .modal-content h3 {
        font-size: 1.2rem;
    }
    
    .modal-content p {
        font-size: 0.8rem;
    }
}

/* 加盟手册样式 */
.franchise-manual {
    padding: 2rem 0;
    background: #fff;
}

.manual-container {
    width: 100%;
    text-align: center;
}

.manual-image {
    width: 100%;
    height: auto;
    max-width: 100%;
    display: block;
    margin: 0 auto;
}

/* 公司统计 */
.company-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.stat-item h4 {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.stat-item p {
    color: #666;
    margin: 0;
    font-size: 0.9rem;
}

/* 优势网格 - 已移至加盟优势样式部分 */

.advantage-item {
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-3px);
}

.advantage-item i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.advantage-item h4 {
    color: #333;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.advantage-item p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

/* 投资分析表格 */
.investment-table {
    overflow-x: auto;
    margin-bottom: 2rem;
}

.investment-table table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.investment-table th,
.investment-table td {
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.investment-table th {
    background: #667eea;
    color: #fff;
    font-weight: 600;
}

.investment-table tr:hover {
    background: #f8f9fa;
}

.investment-table tr:last-child td {
    border-bottom: none;
}

/* 投资回报分析 */
.roi-analysis {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.roi-analysis h4 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.roi-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.roi-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.roi-label {
    color: #666;
    font-size: 0.9rem;
}

.roi-value {
    color: #667eea;
    font-weight: bold;
    font-size: 1.1rem;
}

/* 流程时间线 */
.process-timeline {
    position: relative;
    padding-left: 2rem;
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #667eea;
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-number {
    position: absolute;
    left: -1.5rem;
    top: 0;
    width: 2rem;
    height: 2rem;
    background: #667eea;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
}

.timeline-content h4 {
    color: #333;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.timeline-content p {
    color: #666;
    margin: 0;
    line-height: 1.5;
}

/* 加盟条件列表 */
.requirements-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.requirement-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.requirement-item:hover {
    transform: translateX(5px);
}

.requirement-item i {
    color: #28a745;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.requirement-item span {
    color: #333;
    font-size: 0.95rem;
}

/* 支持政策 */
.support-policies {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.policy-category {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.policy-category h4 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.policy-category ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.policy-category li {
    padding: 0.5rem 0;
    color: #666;
    font-size: 0.9rem;
    position: relative;
    padding-left: 1.5rem;
}

.policy-category li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .franchise-manual {
        padding: 3rem 0;
    }
    
    .manual-display {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .manual-preview {
        padding: 2rem;
    }
    
    .preview-features {
        grid-template-columns: 1fr;
    }
    
    .overlay-content h3 {
        font-size: 1.5rem;
    }
    
    .overlay-content p {
        font-size: 1rem;
    }
    
    .view-manual-btn {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
    
    .manual-modal-content {
        max-width: 95vw;
        margin: 5% auto;
    }
    
    .modal-header {
        padding: 1rem 1.5rem;
    }
    
    .modal-header h3 {
        font-size: 1.3rem;
    }
    
    .modal-footer {
        padding: 1rem 1.5rem;
        flex-direction: column;
    }
    
    .download-btn, .close-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .franchise-manual {
        padding: 2rem 0;
    }
    
    .manual-display {
        gap: 1.5rem;
    }
    
    .manual-preview {
        padding: 1.5rem;
    }
    
    .preview-content h3 {
        font-size: 1.3rem;
    }
    
    .preview-content p {
        font-size: 0.9rem;
    }
    
    .feature-item {
        padding: 0.8rem;
    }
    
    .feature-item span {
        font-size: 0.8rem;
    }
    
    .overlay-content {
        padding: 1.5rem;
    }
    
    .overlay-content h3 {
        font-size: 1.3rem;
    }
    
    .overlay-content p {
        font-size: 0.9rem;
    }
    
    .view-manual-btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .manual-modal-content {
        max-width: 98vw;
        margin: 2% auto;
    }
    
    .modal-header {
        padding: 0.8rem 1rem;
    }
    
    .modal-header h3 {
        font-size: 1.2rem;
    }
    
    .modal-footer {
        padding: 0.8rem 1rem;
    }
    
    .download-btn, .close-btn {
        padding: 0.7rem 1rem;
        font-size: 0.9rem;
    }
}