/* 
  页面整体样式定义
  使用模糊透明风格结合现代科技感设计，通过高级CSS3特性实现丰富的视觉效果和响应式布局。以下样式包括颜色渐变、阴影效果、动画以及布局模块，确保页面在各类设备上的一致性与美观性。
*/

/* 全局基础样式 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #2c3e50, #4ca1af);
    color: #ffffff;
    line-height: 1.6;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: backdrop-filter 0.3s ease;
    z-index: 1000;
}

.navbar:hover {
    backdrop-filter: blur(20px);
}

/* 导航链接样式 */
.navbar a {
    color: #ffffff;
    text-decoration: none;
    margin-left: 20px;
    font-size: 16px;
    transition: color 0.3s ease;
}

.navbar a:hover {
    color: #ffa500;
}

/* 章节导航侧边栏 */
.chapter-nav {
    position: fixed;
    top: 80px;
    right: 20px;
    background: rgba(255, 255, 255, 0.2);
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.chapter-nav a {
    display: block;
    color: #ffffff;
    text-decoration: none;
    margin-bottom: 10px;
    font-size: 14px;
    transition: color 0.3s ease;
}

.chapter-nav a:hover {
    color: #32cd32;
}

/* 主内容容器 */
.container {
    max-width: 1200px;
    margin: 120px auto 50px;
    padding: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

/* 卡片式布局样式 */
.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    backdrop-filter: blur(5px);
    padding: 20px;
    flex: 1 1 calc(33.333% - 40px);
    transition: transform 0.3s ease, backdrop-filter 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.card:hover {
    transform: scale(1.05);
    backdrop-filter: blur(10px);
}

.card img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
}

.card img:hover {
    transform: scale(1.05);
}

.card h3 {
    margin: 15px 0 10px;
    font-size: 18px;
    color: #ffa500;
}

.card p {
    font-size: 16px;
    color: #dcdcdc;
    flex-grow: 1;
}

.card a {
    margin-top: 15px;
    color: #32cd32;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.card a:hover {
    color: #ffa500;
}

/* 示例文章样式 */
article {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    backdrop-filter: blur(5px);
    width: 100%;
}

article h2 {
    font-size: 24px;
    color: #ffffff;
    margin-bottom: 20px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

article p {
    font-size: 16px;
    color: #dcdcdc;
    margin-bottom: 20px;
}

article pre {
    background: rgba(0, 0, 0, 0.7);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 20px;
}

article code {
    color: #f8f8f2;
    font-family: 'Courier New', Courier, monospace;
}

/* 代码示例样式 */
.code-sample {
    background: rgba(0, 0, 0, 0.7);
    padding: 15px;
    border-radius: 8px;
    color: #f8f8f2;
    font-family: 'Courier New', Courier, monospace;
    overflow-x: auto;
    margin-bottom: 20px;
}

/* 响应式布局调整 */
@media (max-width: 768px) {
    .card {
        flex: 1 1 calc(50% - 40px);
    }
}

@media (max-width: 480px) {
    .card {
        flex: 1 1 100%;
    }

    .chapter-nav {
        display: none;
    }

    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .navbar a {
        margin: 10px 0 0;
    }
}

/* 按钮样式 */
.button {
    background: linear-gradient(45deg, #ffa500, #32cd32);
    border: none;
    border-radius: 4px;
    color: #ffffff;
    padding: 10px 20px;
    cursor: pointer;
    transition: background 0.3s ease;
    text-decoration: none;
    font-size: 16px;
}

.button:hover {
    background: linear-gradient(45deg, #32cd32, #ffa500);
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

thead {
    background-color: rgba(76, 161, 175, 0.8);
}

th, td {
    padding: 12px;
    text-align: left;
    border: 1px solid #4ca1af;
    color: #ffffff;
}

th {
    font-weight: 700;
}

/* 字体与排版 */
h2, h3, h4 {
    font-weight: 700;
    color: #ffffff;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

p {
    font-size: 16px;
    color: #dcdcdc;
    line-height: 1.6;
}

/* 动态几何图形动画 */
.geometric-shape {
    width: 100px;
    height: 100px;
    background: #4ca1af;
    animation: rotate 5s linear infinite;
    border-radius: 50%;
    margin: 20px auto;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* 过渡效果 */
.transition-effect {
    transition: all 0.3s ease;
}

.transition-effect:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 12px rgba(0,0,0,0.2);
}

/* 响应式字体大小 */
@media (max-width: 768px) {
    body {
        font-size: 14px;
    }

    h2 {
        font-size: 20px;
    }

    .navbar a {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 12px;
    }

    h2 {
        font-size: 18px;
    }

    .navbar a {
        font-size: 12px;
    }
}

/* 其他装饰性元素样式 */
.decorative-line {
    height: 2px;
    background: linear-gradient(90deg, #ffa500, #32cd32);
    margin: 30px 0;
}