/* 全局样式与重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', 'Fira Sans', sans-serif;
    background: linear-gradient(to bottom, #003366, #000000);
    color: #FFFFFF;
    line-height: 1.6;
    padding: 20px;
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    font-weight: bold;
    margin-bottom: 1rem;
    color: #FFFFFF;
}

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

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

/* 文章样式 */
article {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

article p {
    margin-bottom: 1rem;
}

article ul, article ol {
    margin-left: 20px;
    margin-bottom: 1rem;
}

article li {
    margin-bottom: 0.5rem;
}

code {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 4px;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
}

pre {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 8px;
    overflow: auto;
    margin-bottom: 1rem;
    font-family: 'Fira Code', monospace;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

table, th, td {
    border: 1px solid #FFFFFF;
}

th, td {
    padding: 10px;
    text-align: left;
}

th {
    background: #0099CC;
    color: #FFFFFF;
}

td {
    background: rgba(255, 255, 255, 0.05);
}

/* 图片样式 */
img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 1rem;
}

/* 导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 51, 102, 0.8);
    padding: 10px 20px;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #FFFFFF;
}

.navbar ul {
    list-style: none;
    display: flex;
}

.navbar li {
    margin-left: 20px;
}

.navbar a {
    color: #FFFFFF;
    text-decoration: none;
    transition: color 0.3s ease;
}

.navbar a:hover {
    color: #0099CC;
}

/* 主内容区 */
.main-content {
    margin-top: 80px;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
}

.sidebar {
    grid-column: span 3;
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 10px;
}

.content {
    grid-column: span 9;
}

@media (max-width: 1440px) {
    .sidebar {
        grid-column: span 3;
    }
    .content {
        grid-column: span 9;
    }
}

@media (max-width: 1200px) {
    .sidebar {
        grid-column: span 4;
    }
    .content {
        grid-column: span 8;
    }
}

@media (max-width: 1024px) {
    .sidebar {
        grid-column: span 6;
    }
    .content {
        grid-column: span 6;
    }
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: repeat(6, 1fr);
    }
    .sidebar {
        grid-column: span 6;
    }
    .content {
        grid-column: span 6;
    }
}

@media (max-width: 480px) {
    .navbar ul {
        flex-direction: column;
        background: rgba(0, 51, 102, 0.9);
        position: absolute;
        top: 50px;
        right: 0;
        width: 200px;
        display: none;
    }

    .navbar ul.active {
        display: flex;
    }

    .navbar .menu-toggle {
        display: block;
        cursor: pointer;
    }

    .sidebar, .content {
        grid-column: span 6;
    }
}

@media (max-width: 320px) {
    .navbar .logo {
        font-size: 1.2rem;
    }
    h1 {
        font-size: 1.8rem;
    }
    .navbar ul {
        width: 100%;
    }
}

/* 按钮样式 */
button {
    background: #0099CC;
    color: #FFFFFF;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

button:hover {
    background: #FF9900;
    transform: scale(1.05);
}

/* 动画效果 */
.fade-in {
    animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.scale-up {
    transition: transform 0.3s ease;
}

.scale-up:hover {
    transform: scale(1.1);
}

/* 背景图形 */
.background-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.gptkong.com/demo/sample1.png'), url('https://images.gptkong.com/demo/sample2.png');
    background-size: 200px 200px;
    background-repeat: repeat;
    opacity: 0.1;
    z-index: -1;
}

/* 示例数据展示样式 */
.sample-data {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 10px;
    margin-top: 2rem;
}

.sample-data h2 {
    margin-bottom: 1rem;
    color: #FF9900;
}

.sample-data ul {
    list-style-type: disc;
    padding-left: 20px;
}

.sample-data li {
    margin-bottom: 0.5rem;
}

/* 提示信息样式 */
.alert {
    background: #FF9900;
    color: #FFFFFF;
    padding: 10px 20px;
    border-radius: 5px;
    text-align: center;
    margin-bottom: 2rem;
}

/* 内边距优化 */
.article-content {
    padding: 20px;
}

@media (max-width: 768px) {
    .article-content {
        padding: 15px;
    }
}

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

/* 高亮代码块 */
.code-block {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Fira Code', monospace;
    margin-bottom: 1rem;
    color: #00FFCC;
}