* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}
.header {
    background: #222;
    color: #fff;
    padding: 1rem 0;
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 1.5rem;
    font-weight: bold;
}
.nav a {
    color: #fff;
    text-decoration: none;
    margin-left: 2rem;
}
.nav a:hover {
    color: #409eff;
}
.banner {
    background: #f5f5f5;
    padding: 4rem 0;
    text-align: center;
    margin-bottom: 2rem;
}
.section {
    padding: 2rem 0;
}
.title {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}
.author-box {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 3rem;
}
.author {
    width: 280px;
    text-align: center;
    padding: 1.5rem;
    border: 1px solid #eee;
    border-radius: 8px;
}
.author img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    background: #ddd;
}
.product-list {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}
.product-item {
    width: 280px;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
}
.product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: #eee;
}
.product-info {
    padding: 1rem;
}
.product-info h3 {
    margin-bottom: 0.5rem;
}
.product-info p {
    color: #666;
    margin-bottom: 1rem;
}
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #409eff;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
}
.footer {
    background: #222;
    color: #fff;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}
.product-detail {
    max-width: 800px;
    margin: 0 auto;
}
.product-detail img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    margin-bottom: 2rem;
    background: #eee;
}