body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.back-link {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    text-decoration: none;
    color: #666;
}

.back-link:hover {
    color: #333;
}

.profile-card {
    background: white;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

.profile-avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-bottom: 20px;
}

.title {
    color: #666;
    font-size: 1.2em;
    margin: 10px 0;
}

.stats {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.stat-item {
    padding: 0 20px;
}

.number {
    display: block;
    font-size: 1.5em;
    font-weight: bold;
    color: #2196F3;
}

.label {
    color: #666;
}

section {
    background: white;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h3 {
    color: #2196F3;
    margin-top: 0;
}

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

.skills li {
    display: inline-block;
    background: #e3f2fd;
    padding: 8px 15px;
    border-radius: 20px;
    margin: 5px;
}

.contact i {
    width: 20px;
    color: #2196F3;
    margin-right: 10px;
}

.products .product-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.product-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    transition: transform 0.2s;
}

.product-item:hover {
    transform: translateY(-5px);
}

.product-item h4 {
    color: #1976D2;
    margin-bottom: 10px;
}

.ai-partner {
    background: linear-gradient(135deg, #1976D2, #2196F3);
    color: white;
}

.partner-content {
    text-align: center;
    padding: 20px;
}

.partner-content h4 {
    color: white;
    margin-bottom: 15px;
}

.partner-link {
    display: inline-block;
    background: white;
    color: #1976D2;
    padding: 10px 25px;
    border-radius: 25px;
    text-decoration: none;
    margin-top: 15px;
    transition: all 0.3s;
}

.partner-link:hover {
    background: #e3f2fd;
    transform: translateY(-2px);
}

.partner-link i {
    margin-left: 8px;
}

.footer {
    text-align: center;
    padding: 20px 0;
    color: #666;
    font-size: 0.9rem;
    margin-top: 40px;
    background-color: #f8f9fa; /* 新增背景色 */
    border-top: 1px solid #e0e0e0; /* 可选：添加顶部边框 */
}

.beian-info {
    margin-top: 10px;
}

.beian-info a {
    color: #939393;
    text-decoration: none;
    font-size: 12px;
}

.beian-info a:hover {
    color: #666;
}

.beian-info img {
    width: 16px;
    height: 16px;
    vertical-align: middle;
    margin-right: 5px;
}