/* 全局样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #0A2463, #1E3C72);
    overflow-x: hidden;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
header {
    text-align: center;
    padding: 50px 20px;
    background: linear-gradient(rgba(247, 247, 247, 0.8), rgba(247, 247, 247, 0.4));
    backdrop-filter: blur(10px);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
}
header h1 {
    font-size: 3rem;
    color: #0A2463;
    margin-bottom: 10px;
}
header p {
    font-size: 1.2rem;
    color: #555;
}

/* 导航栏 */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #0A2463;
    color: white;
    padding: 10px 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
}
nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    transition: color 0.3s ease;
}
nav a:hover {
    color: #00BFFF;
}
@media (max-width: 768px) {
    nav {
        flex-direction: column;
    }
    nav a {
        margin: 10px 0;
    }
}

/* 卡片式内容模块 */
.card {
    background: rgba(247, 247, 247, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 800px;
}
.card h2 {
    font-size: 2rem;
    color: #0A2463;
    margin-bottom: 15px;
}
.card p {
    font-size: 1rem;
    color: #555;
    margin-bottom: 15px;
}
.card pre {
    background: #f4f4f4;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}
.card code {
    color: #00BFFF;
    font-size: 0.9rem;
}

/* 图片与装饰 */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin: 20px 0;
}
.image-grid img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    object-fit: cover;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: rgba(247, 247, 247, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    overflow: hidden;
}
th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}
th {
    background: #0A2463;
    color: white;
}

/* 按钮样式 */
button {
    background-color: #00BFFF;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
button:hover {
    background-color: #32CD32;
}

/* 响应式设计 */
@media (max-width: 480px) {
    header h1 {
        font-size: 2rem;
    }
    .card h2 {
        font-size: 1.5rem;
    }
}