/* 关于我们页面专用样式 */

/* 面包屑导航 */
.breadcrumb {
    background: #f8f9fa;
    padding: 15px 0;
    border-bottom: 1px solid #e9ecef;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

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

.breadcrumb span {
    color: #6c757d;
}

/* 公司介绍 */
.company-intro {
    padding: 80px 0;
    background: white;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text h1 {
    font-size: 42px;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: bold;
}

.intro-subtitle {
    font-size: 20px;
    color: #666;
    margin-bottom: 30px;
    font-weight: 500;
}

.intro-description p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: #333;
    font-size: 16px;
}

.intro-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* 公司优势 */
.company-advantages {
    padding: 80px 0;
    background: #f8f9fa;
}

.company-advantages h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.advantage-card {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.advantage-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.advantage-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

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

/* 产品系列 */
.product-series {
    padding: 80px 0;
    background: white;
}

.product-series h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.series-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.series-item {
    padding: 30px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    transition: border-color 0.3s;
}

.series-item:hover {
    border-color: var(--primary-color);
}

.series-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.series-item p {
    margin-bottom: 20px;
    color: #666;
    line-height: 1.6;
}

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

.series-item ul li {
    padding: 5px 0 5px 20px;
    position: relative;
    color: #555;
    font-size: 14px;
}

.series-item ul li:before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 质量认证 */
.quality-certifications {
    padding: 80px 0;
    background: #f8f9fa;
}

.quality-certifications h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.cert-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: center;
}

.cert-text h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.cert-text p {
    margin-bottom: 20px;
    line-height: 1.6;
    color: #333;
}

.cert-text ul {
    margin: 20px 0;
    padding-left: 0;
    list-style: none;
}

.cert-text ul li {
    padding: 8px 0 8px 25px;
    position: relative;
    color: #555;
}

.cert-text ul li:before {
    content: "✓";
    color: #28a745;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.cert-images img {
    width: 100%;
    height: auto;
    border-radius: 10px;
}

/* 企业文化 */
.company-culture {
    padding: 80px 0;
    background: white;
}

.company-culture h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.culture-item {
    text-align: center;
    padding: 40px 20px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: transform 0.3s;
}

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

.culture-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .intro-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .intro-text {
        order: 2;
    }
    
    .intro-image {
        order: 1;
    }
    
    .intro-text h1 {
        font-size: 32px;
        text-align: center;
    }
    
    .intro-subtitle {
        text-align: center;
    }
    
    .cert-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .series-grid {
        grid-template-columns: 1fr;
    }
    
    .advantage-grid {
        grid-template-columns: 1fr;
    }
    
    .culture-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .company-intro,
    .company-advantages,
    .product-series,
    .quality-certifications,
    .company-culture {
        padding: 40px 0;
    }
    
    .intro-text h1 {
        font-size: 28px;
    }
    
    .company-advantages h2,
    .product-series h2,
    .quality-certifications h2,
    .company-culture h2 {
        font-size: 28px;
    }
    
    .advantage-card,
    .culture-item {
        padding: 30px 20px;
    }
}