/* Banner 区域样式 */
.sitemap-banner {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #1a2a42 0%, #0d1b2a 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 0; /* 取消 margin-top，让其顶到最上方 */
    padding-top: 60px; /* 增加 padding-top 避免文字被导航栏遮挡 */
    overflow: hidden;
}

/* 增加一些科技感底纹 */
.sitemap-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(46, 140, 254, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(0, 198, 255, 0.1) 0%, transparent 50%);
    z-index: 1;
}

.sitemap-banner-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #ffffff;
}

.sitemap-banner-inner h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 2px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.sitemap-banner-inner p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.sitemap-container {
    max-width: 1200px;
    margin: 60px auto 100px;
    padding: 0 20px;
    min-height: 50vh;
}

.sitemap-content {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
    padding: 50px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.sitemap-group {
    margin-bottom: 30px;
}

.sitemap-group-title {
    font-size: 20px;
    color: #2E8CFE;
    border-bottom: 2px solid #edf2f9;
    padding-bottom: 12px;
    margin-bottom: 20px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sitemap-group-title::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 20px;
    background: #2E8CFE;
    border-radius: 3px;
}

.sitemap-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sitemap-list li {
    margin-bottom: 12px;
    position: relative;
    padding-left: 15px;
}

.sitemap-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 5px;
    background: #ccc;
    border-radius: 50%;
    transition: all 0.3s;
}

.sitemap-list li:hover::before {
    background: #2E8CFE;
    transform: scale(1.5);
}

.sitemap-list a {
    color: #555;
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s ease;
    display: inline-block;
}

.sitemap-list a:hover {
    color: #2E8CFE;
    transform: translateX(5px);
}

@media (max-width: 768px) {
    .sitemap-banner {
        height: 200px;
    }
    .sitemap-banner-inner h1 {
        font-size: 28px;
    }
    .sitemap-banner-inner p {
        font-size: 14px;
        padding: 0 20px;
    }
    .sitemap-content {
        padding: 30px 20px;
        grid-template-columns: 1fr;
        gap: 20px;
    }
}