：
body {
    background-color: #31638d; 
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
}


.header {
    background-color: #2d5a81; 
    color: white;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.header h1 {
    font-size: 2.5rem;
    margin: 0;
}

.header a {
    text-decoration: none;
    color: white;
}


.container-custom {
    margin: 0 auto;
    padding: 20px;
    max-width: 900px; 
}


.article-title {
    font-size: 1.5rem;
    color: #2d5a81; 
    font-weight: bold;
    margin-bottom: 20px;
}

.article-meta {
    font-size: 0.9rem;
    color: #1f3e5a;
    margin-bottom: 20px;
}

.article-content {
    font-size: 1.0rem;
    line-height: 1.8;
    color: #1f3e5a;
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}


.prev-next-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.prev-next-buttons a {
    text-decoration: none;
    color: #2d5a81; 
    padding: 10px 20px;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
    font-size: 13px;
    max-width: 200px; 
    white-space: nowrap; 
    overflow: hidden; 
    text-overflow: ellipsis; 
}

.prev-next-buttons a:hover {
    background-color: #2d5a81; 
    color: white;
}


.related-articles {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.related-articles h4 {
    font-size: 1.6rem;
    color: #2d5a81; 
    margin-bottom: 20px;
}

.related-articles ul {
    list-style-type: none;
    padding: 0;
}

.related-articles li {
    margin-bottom: 15px;
}

.related-articles a {
    text-decoration: none;
    color: #2d5a81; 
    font-size: 1.0rem;
}

.related-articles a:hover {
    text-decoration: underline;
}


.product {
    margin: 20px 0;
    padding: 25px;
    border-radius: 10px;
    background-color: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-wrap: wrap;
    margin-left: auto;
    margin-right: auto;
    max-width: 900px;
}

.product img {
    max-width: 200px;
    max-height: 200px;
    margin-right: 20px;
    border-radius: 8px;
}

.product-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-name {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2d5a81; 
}

.product-price {
    font-size: 1.3rem;
    color: #366c9a; 
    margin-top: 10px;
}

.product-original-price {
    font-size: 1rem;
    text-decoration: line-through;
    color: #888;
}

.product-rating {
    margin: 10px 0;
    font-size: 1.1rem;
}

.product-description {
    font-size: 1rem;
    color: #555;
    margin-bottom: 10px;
}

.btn-buy {
    margin-top: 10px;
    background-color: #2d5a81; 
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 5px;
    text-decoration: none;
    text-align: center;
}

.btn-buy:hover {
    background-color: #1f3e5a; 
}

.countdown-timer {
    color: #366c9a; 
    font-weight: bold;
}


.section-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2d5a81; 
    margin-bottom: 20px;
    text-align: center;
}

.article-list,
.links,
.about-us {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 100%; 
}

.article-list ul,
.links ul {
    list-style-type: none;
    padding: 0;
}

.article-list li,
.links li {
    margin: 12px 0;
    font-size: 1.1rem;
}

.article-list a,
.links a {
    text-decoration: none;
    color: #2d5a81; 
}

.article-list a:hover,
.links a:hover {
    text-decoration: underline;
}


.about-us p {
    line-height: 1.8;
    color: #555;
    font-size: 1.1rem;
}

.view-more-container {
    text-align: center; 
    margin-top: 20px; 
}

.view-more-btn {
    padding: 10px 20px;
    font-size: 1rem;
    color: #fff!important;
    background-color: #2d5a81; 
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    text-decoration: none;
}

.view-more-container a {
    text-decoration: none;
    color: #ffffff!important;
}

.view-more-btn:hover {
    background-color: #1f3e5a; 
}



.links ul {
    padding: 0;
    margin: 0;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 20px; 
}

.links ul li {
    display: inline-block; 
    margin: 0;
}

.links ul li a {
    padding: 10px;
    background-color: #f8f7f7; 
    text-decoration: none;
    color: #1f3e5a;
    border-radius: 8px;
    word-wrap: break-word; 
    text-align: center; 
    min-width: 120px; 
    max-width: 100%; 
    box-sizing: border-box; 
    font-size: 12px; 
    line-height: 1.5; 
}

.links ul li a:hover {
    background-color: #e0e0e0; 
}


.article-item {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
}

.article-item.article-date {
    font-size: 0.9rem;
    color: #1f3e5a;
    margin-bottom: 5px;
}

.pagination {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

.pagination a {
    text-decoration: none;
    color: #2d5a81; 
    padding: 10px 15px;
    margin: 0 5px;
    border-radius: 5px;
    border: 1px solid #2d5a81;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.pagination a:hover {
    background-color: #2d5a81; 
    color: white;
}

.pagination.prev,
.pagination.next {
    font-weight: bold;
}

.pagination.page-number {
    text-align: center;
}


.footer {
    background-color: #2d5a81; 
    color: white;
    padding: 20px 0;
    text-align: center;
    margin-top: 50px;
}

.footer a {
    text-decoration: none;
    color: white;
    margin: 0 10px;
}

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

.footer p {
    font-size: 0.9rem;
}


@media screen and (max-width: 768px) {
 .container-custom {
        padding: 15px;
    }

 .article-title {
        font-size: 1.5rem;
    }

 .article-content {
        padding: 20px;
    }

 .related-articles {
        padding: 20px;
    }

 .product {
        flex-direction: column;
        align-items: center;
    }

 .product img {
        max-width: 200px;
        margin-bottom: 15px;
    }

 .article-list {
        padding: 20px;
    }

 .links ul {
        grid-template-columns: 1fr 1fr;
    }
}