/* 全站统一样式 */
body {
    margin: 0;
    padding: 0;
    background-color: #F5F5F5; /* 浅灰色背景 */
    color: #333333; /* 主文字颜色 */
    font-family: 'Roboto', sans-serif; /* 无衬线字体 */
    line-height: 1.6;
    overflow-x: hidden; /* 防止横向滚动条 */
}

/* 导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-around;
    align-items: center;
    background-color: #003366; /* 深蓝色主色调 */
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar a {
    color: #FFFFFF;
    text-decoration: none;
    font-size: 1.1rem;
    padding: 0.5rem 1rem;
    transition: color 0.3s, transform 0.3s;
}

.navbar a:hover {
    color: #FFA500; /* 亮橙色悬停效果 */
    transform: scale(1.05); /* 微放大效果 */
}

/* 主要容器 */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 2rem auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* 模块样式 */
.module {
    background-color: #FFFFFF;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.module:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.module h3 {
    color: #003366;
    margin-bottom: 1rem;
}

.module p {
    color: #555555;
}

/* 按钮样式 */
.button {
    background-color: #32CD32; /* 翠绿色 */
    border: none;
    padding: 0.75rem 1.5rem;
    color: #FFFFFF;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;
    text-decoration: none;
    display: inline-block;
}

.button:hover {
    background-color: #FFA500; /* 亮橙色悬停 */
    transform: scale(1.05);
}

/* 文章样式 */
.article {
    background-color: #FFFFFF;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-top: 2rem;
}

.article h2 {
    color: #003366;
    margin-bottom: 1rem;
}

.article h3 {
    color: #FFA500;
    margin: 1.5rem 0 1rem 0;
}

.article p {
    margin-bottom: 1rem;
    color: #555555;
}

.article pre {
    background-color: #F0F0F0;
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.article img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1rem 0;
    border-radius: 5px;
}

/* 提示条样式 */
.banner {
    background-color: #FFA500; /* 亮橙色 */
    color: #FFFFFF;
    text-align: center;
    padding: 1rem 0;
    font-size: 1.2rem;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 999;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
    }
    .container {
        grid-template-columns: 1fr;
    }
}

/* 辅助色与渐变背景 */
.primary-color {
    color: #003366;
}

.accent-orange {
    color: #FFA500;
}

.accent-green {
    color: #32CD32;
}

.gradient-bg {
    background: linear-gradient(135deg, #003366, #FFA500);
    color: #FFFFFF;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 2rem;
}

/* 图标样式 */
.icon {
    width: 24px;
    height: 24px;
    fill: #333333;
    transition: fill 0.3s;
}

.icon:hover {
    fill: #FFA500;
}

/* 加载动画 */
.loader {
    border: 8px solid #f3f3f3;
    border-top: 8px solid #003366;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

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