/* 全局样式设置 */
/* 设置页面背景为渐变色，使用柔和的主色调和辅色调 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #ffffff;
    line-height: 1.6;
}

/* 设置响应式容器 */
.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

/* 顶部导航栏样式 */
.navbar {
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
    padding: 15px 20px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

.navbar ul {
    list-style: none;
    display: flex;
    justify-content: flex-end;
    margin: 0;
}

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

.navbar a {
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

.navbar a:hover {
    color: #ffcc00;
}

/* 主要内容区域 */
.main-content {
    margin-top: 80px;
    width: 100%;
    max-width: 1200px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px;
}

/* 文章内容样式 */
article {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

article:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
}

/* 图片样式 */
img.decorative {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

img.decorative:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
}

/* 按钮样式 */
.button {
    display: inline-block;
    padding: 10px 20px;
    background: #ff5722;
    color: #ffffff;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: background 0.3s ease;
}

.button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(45deg) translateY(-50%);
    transition: transform 0.5s;
}

.button:active::after {
    transform: rotate(45deg) translateY(-150%);
}

.button:hover {
    background: #e64a19;
}

/* 导航系统样式 */
.nav-section {
    position: fixed;
    top: 80px;
    right: 20px;
    background: rgba(0, 0, 0, 0.7);
    padding: 10px 15px;
    border-radius: 8px;
}

.nav-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-section li {
    margin: 10px 0;
}

.nav-section a {
    color: #ffffff;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.nav-section a:hover {
    color: #ffcc00;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar ul {
        flex-direction: column;
        align-items: center;
    }

    .navbar li {
        margin-left: 0;
        margin-bottom: 10px;
    }

    .nav-section {
        display: none;
    }
}

/* 代码块样式 */
pre {
    background: rgba(0, 0, 0, 0.8);
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
}

code {
    color: #ffcc00;
    font-family: 'Courier New', Courier, monospace;
}

/* 提示文本样式 */
.tip {
    background: rgba(255, 255, 255, 0.2);
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 18px;
    font-weight: bold;
    animation: fadeIn 2s ease-in-out;
}

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