body {
    font-family: "Helvetica Neue", sans-serif;
    margin: 0;
    padding: 20px;
    background: #f9f9f9;
}

h1, h2 {
    text-align: center;
    color: #333;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    max-width: 1000px;
    margin: 40px auto;
}

.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 3px 12px rgba(0,0,0,0.06);
    padding: 20px;
    transition: transform 0.2s ease;
    text-decoration: none;
    color: inherit;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.icon {
    font-size: 36px;
    text-align: center;
}

.title {
    font-size: 20px;
    font-weight: bold;
    margin: 10px 0 5px;
    text-align: center;
}

.desc {
    font-size: 14px;
    color: #666;
    text-align: center;
}

.top-nav {
    text-align: right;
    margin-bottom: 20px;
}

.top-nav a {
    margin-left: 10px;
    text-decoration: none;
    color: #007bff;
}
/* 全局样式 */
body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f6f9;
    color: #333;
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
    color: #007bff;
}

a:hover {
    color: #0056b3;
}

/* 顶部导航 */
.top-nav {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    text-align: right;
}

.top-nav a {
    color: white;
    margin-left: 15px;
}

.top-nav span {
    margin-left: 10px;
}

/* 消息提示 */
.message {
    color: red;
    font-weight: bold;
}

/* 页面容器 */
.container {
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 28px;
    color: #333;
}

.vip-status {
    margin-top: 20px;
    font-size: 16px;
    color: green; /* 设置为绿色 */
}


.vip-status a {
    font-weight: bold;
    color: #007bff;
}

.vip-status a:hover {
    color: #0056b3;
}

/* 模型列表 */
.model-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.model-item {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.model-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.model-item h3 {
    font-size: 18px;
    color: #333;
}

.model-item p {
    font-size: 14px;
    color: #666;
    margin: 10px 0;
}

.model-link {
    display: inline-block;
    margin-top: 15px;
    padding: 8px 15px;
    background-color: #007bff;
    color: white;
    border-radius: 4px;
    font-size: 14px;
    text-align: center;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.model-link:hover {
    background-color: #0056b3;
    color: white; /* 确保字体颜色在 hover 时仍然是白色 */
}

/* 新增类别标题样式 */
.model-category {
    margin-top: 40px;
}

.model-category h2 {
    font-size: 24px;
    color: #333;
    border-bottom: 2px solid #007bff;
    padding-bottom: 10px;
    margin-bottom: 20px;
}