.page-header {
    background: linear-gradient(rgba(255, 182, 193, 0.8), rgba(255, 105, 180, 0.8)), url('https://via.placeholder.com/1200x300') no-repeat center center;
    background-size: cover;
    color: white;
    text-align: center;
    padding: 60px 20px;
    margin-bottom: 40px;
}

.page-header h1 {
    font-size: 42px;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-header p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto;
}

.knowledge-intro {
    padding: 60px 0;
    background-color: #fff;
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.intro-content h2 {
    color: #ff6b9d;
    font-size: 32px;
    margin-bottom: 20px;
}

.intro-content p {
    color: #666;
    font-size: 16px;
    line-height: 1.8;
}

.knowledge-categories {
    padding: 60px 0;
    background-color: #fffaf8;
}

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

.category-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 40px 25px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.category-item:hover {
    transform: translateY(-10px);
}

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

.category-item h3 {
    color: #ff6b9d;
    margin-bottom: 15px;
    font-size: 22px;
}

.category-item p {
    color: #666;
    margin-bottom: 20px;
    font-size: 14px;
    min-height: 60px;
}

.featured-articles {
    padding: 60px 0;
    background-color: #fff;
}

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

.article-card {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.article-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.article-content {
    padding: 25px;
}

.article-category {
    display: inline-block;
    background-color: #ff9eb5;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 15px;
}

.article-content h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 20px;
    line-height: 1.4;
}

.article-excerpt {
    color: #666;
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    font-size: 12px;
    color: #999;
}

.subscription {
    padding: 80px 0;
    background: linear-gradient(rgba(255, 182, 193, 0.1), rgba(255, 105, 180, 0.1));
}

.subscription-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.subscription-content h2 {
    color: #ff6b9d;
    font-size: 32px;
    margin-bottom: 15px;
}

.subscription-content p {
    color: #666;
    margin-bottom: 30px;
    font-size: 16px;
}

.subscription-form {
    display: flex;
    gap: 10px;
}

.subscription-form input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid #ff9eb5;
    border-radius: 30px;
    font-size: 16px;
    outline: none;
}

.subscription-form input:focus {
    border-color: #ff6b9d;
}

.subscription-form .btn {
    padding: 15px 30px;
}

@media (max-width: 768px) {
    .subscription-form {
        flex-direction: column;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 5px;
    }
}