/* 全局样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(to bottom, #00008B, #4B0082);
    color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: bold;
    color: #FFD700;
}

p, li, a {
    color: #E0E0E0;
}

a {
    text-decoration: none;
}

a:hover {
    color: #00FFFF;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 顶部导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.5);
}

.navbar .logo {
    font-size: 24px;
    color: #00FFFF;
}

.navbar .tabs {
    display: flex;
    gap: 20px;
}

.navbar .tab-button {
    padding: 10px 15px;
    background: #333;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.navbar .tab-button:hover {
    background: #555;
}

/* 内容区域 */
.content-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 80px;
}

.card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 20px;
    flex: 1 1 calc(33.33% - 40px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

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

.card img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
}

.card h3 {
    margin-top: 0;
    color: #FFD700;
}

.card p {
    font-size: 14px;
}

/* 文章展示区 */
.article {
    background: rgba(0, 0, 0, 0.8);
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
}

.article pre {
    background: #1E1E1E;
    color: #00FFFF;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

.article code {
    color: #FFD700;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .card {
        flex: 1 1 calc(50% - 40px);
    }
}

@media (max-width: 768px) {
    .card {
        flex: 1 1 100%;
    }

    .navbar .tabs {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    .navbar .logo {
        font-size: 20px;
    }

    .navbar .tab-button {
        padding: 8px 12px;
        font-size: 14px;
    }
}