.sitemap-banner {
    width: 100%;
    height: 450px;
    background-image: url('../img4/sitemap_banner.jpg');
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 0;
}

.sitemap-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(20, 30, 60, 0.8) 0%, rgba(10, 40, 90, 0.6) 100%);
    z-index: 1;
}

.sitemap-banner .banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding-top: 60px; /* Offset for fixed header */
    animation: fadeInDown 0.8s ease-out;
}

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

.sitemap-banner h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    letter-spacing: 4px;
    text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.sitemap-banner p {
    font-size: 18px;
    opacity: 0.9;
    letter-spacing: 2px;
}

.sitemap-container {
    max-width: 1200px;
    margin: 60px auto 80px;
    padding: 0 20px;
    min-height: 60vh;
}

.sitemap-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.sitemap-section {
    background: #fff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}

.section-title {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    padding-left: 15px;
    border-left: 4px solid #426df9;
}

.sitemap-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px 30px;
}

.sitemap-list.news-list-sitemap {
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
}

.sitemap-list li a {
    color: #666;
    text-decoration: none;
    font-size: 16px;
    display: inline-block;
    width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.3s ease;
    padding: 5px 0;
}

.sitemap-list li a:hover {
    color: #426df9;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .sitemap-container {
        margin-top: 80px;
    }
    .sitemap-list.news-list-sitemap {
        grid-template-columns: 1fr;
    }
}