/* 引入字体 */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@700&family=Roboto&display=swap');

/* CSS 重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0A75AD, #8A2BE2);
    color: #ffffff;
    line-height: 1.6;
    padding: 20px;
}

/* 标题样式 */
h1, h2, h3 {
    font-family: 'Poppins', sans-serif;
    color: #ffffff;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5rem;
    text-align: center;
    margin-top: 20px;
}

h2 {
    font-size: 2rem;
    margin-top: 40px;
}

h3 {
    font-size: 1.5rem;
    margin-top: 30px;
}

/* 段落样式 */
p {
    margin-bottom: 20px;
    font-size: 1rem;
}

/* 代码块样式 */
pre {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 20px;
}

code {
    font-family: 'Courier New', Courier, monospace;
    color: #FFD700;
}

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

th, td {
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 10px;
    text-align: left;
}

th {
    background-color: rgba(0, 0, 0, 0.2);
}

/* 图片样式 */
img {
    max-width: 100%;
    height: auto;
    margin-bottom: 20px;
}

/* 按钮样式 */
.button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #8A2BE2;
    color: #ffffff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
}

.button:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* 布局容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 示范展示区域 */
.sample-display {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 10px;
    margin-top: 40px;
}

/* 自适应网格 */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

/* 微动画效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.sample-display, .container {
    animation: fadeIn 2s ease-in;
}

/* 响应式设计 */
@media (max-width: 1440px) {
    h1 {
        font-size: 2.2rem;
    }
    h2 {
        font-size: 1.8rem;
    }
    h3 {
        font-size: 1.3rem;
    }
    .button {
        padding: 8px 16px;
    }
}

@media (max-width: 1200px) {
    .container {
        padding: 15px;
    }
}

@media (max-width: 1024px) {
    body {
        padding: 15px;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    h2 {
        font-size: 1.6rem;
    }
    h3 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }
    h2 {
        font-size: 1.4rem;
    }
    h3 {
        font-size: 1rem;
    }
    .button {
        padding: 6px 12px;
    }
}

@media (max-width: 320px) {
    h1 {
        font-size: 1.5rem;
    }
    h2 {
        font-size: 1.2rem;
    }
    h3 {
        font-size: 0.9rem;
    }
}