/* 全局样式 */
body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #1E1E2F, #2C2C4A);
    color: #FFFFFF;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1, h2, h3 {
    font-weight: bold;
    color: #4A56E2;
}

p, li, td {
    font-size: 16px;
    color: #D1D1D1;
}

a {
    color: #6C75FF;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #8A93FF;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(30, 30, 47, 0.9);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: #FFFFFF;
    padding: 10px 15px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.nav-links a.active {
    background: #4A56E2;
    color: #FFFFFF;
}

.nav-links a:hover {
    background: #6C75FF;
}

/* 主内容区域 */
.main-content {
    margin-top: 80px;
    padding: 20px;
}

.tab-content {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.tab-content.active {
    display: block;
    opacity: 1;
}

/* 数据表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

th {
    background: #4A56E2;
    color: #FFFFFF;
}

tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.05);
}

/* 图片样式 */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
    margin: 20px 0;
}

.image-grid img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    object-fit: cover;
}

/* 动画效果 */
.loader {
    width: 50px;
    height: 50px;
    border: 3px solid #4A56E2;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

button {
    background: #4A56E2;
    color: #FFFFFF;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

button:hover {
    background: #6C75FF;
    transform: scale(1.05);
}

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

    table {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    h1, h2, h3 {
        font-size: 1.5rem;
    }

    p, li, td {
        font-size: 14px;
    }

    .image-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }
}