/* 基础样式 */
body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: #ffffff;
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* 容器 */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* 头部 */
header {
    text-align: center;
    padding: 60px 0;
    background: linear-gradient(135deg, #1f4037, #99f2c8);
    border-radius: 10px;
    margin: 20px 0;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

header p {
    font-size: 1.2rem;
    color: #f0f0f0;
}

/* 主内容 */
main {
    flex: 1;
}

/* 文章样式 */
.article-section {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 40px;
}

.article-section h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #ffffff;
}

.article-section h3 {
    font-size: 1.5rem;
    margin-top: 30px;
    color: #ade8f4;
}

.article-section h4 {
    font-size: 1.2rem;
    margin-top: 20px;
    color: #90e0ef;
}

.article-section p {
    font-size: 1rem;
    margin-top: 10px;
    color: #e0fbfc;
}

.article-section pre {
    background: #14213d;
    padding: 15px;
    border-radius: 5px;
    overflow: auto;
    margin-top: 10px;
}

.article-section code {
    color: #fca311;
    font-family: 'Courier New', Courier, monospace;
}

/* 示例展示 */
.example-display {
    background: linear-gradient(135deg, #355c7d, #6c5b7b, #c06c84);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 40px;
}

.example-display h2 {
    text-align: center;
    color: #f8b500;
    margin-bottom: 20px;
}

.example-display article {
    background: rgba(0, 0, 0, 0.5);
    padding: 20px;
    border-radius: 10px;
}

.example-display pre {
    background: #1b1b1b;
    padding: 10px;
    border-radius: 5px;
    overflow: auto;
    color: #00ffcc;
}

/* 按钮样式 */
.button {
    display: inline-block;
    background-color: #0f9b0f;
    color: #ffffff;
    padding: 10px 25px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.button:hover {
    background-color: #1cb5e0;
    transform: scale(1.05);
}

/* 图片样式 */
img {
    max-width: 100%;
    border-radius: 10px;
    margin: 10px 0;
}

/* 页脚 */
footer {
    text-align: center;
    padding: 20px;
    background: #203a43;
    color: #a8dadc;
}

/* 响应式设计 */
@media (max-width: 1440px) {
    header h1 {
        font-size: 2.2rem;
    }

    .article-section h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 1200px) {
    .container {
        width: 95%;
    }
}

@media (max-width: 1024px) {
    header {
        padding: 40px 20px;
    }

    .article-section {
        padding: 20px;
    }

    .button {
        padding: 8px 20px;
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .article-section h2 {
        font-size: 1.6rem;
    }

    .button {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }

    .article-section h3 {
        font-size: 1.3rem;
    }

    .article-section h4 {
        font-size: 1.1rem;
    }

    .button {
        padding: 6px 15px;
    }
}

@media (max-width: 320px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 20px 10px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .article-section h2 {
        font-size: 1.4rem;
    }

    .button {
        padding: 5px 10px;
    }
}

/* 动画效果 */
@keyframes flow {
    0% { transform: translateX(-20px); }
    50% { transform: translateX(20px); }
    100% { transform: translateX(-20px); }
}

.line-art {
    stroke: #0f9b0f;
    fill: none;
    stroke-width: 2px;
    animation: flow 5s infinite;
}

/* 链接样式 */
a {
    color: #1cb5e0;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}