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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #fff;
    min-height: 100vh;
    padding: 20px;
}

/* 容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 仪表盘 */
.dashboard {
    padding: 30px 0;
}

.dashboard-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
    font-weight: 300;
    letter-spacing: 1px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

/* 主要内容区域已移除 */

/* 功能网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

/* 功能卡片 */
.feature-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 40px 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 180px;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.feature-card.empty::before {
    content: "＋";
    font-size: 3rem;
    opacity: 0.7;
}

/* 按钮样式已移除 */

/* 管理面板已移除 */

/* 页脚已移除 */

/* 响应式设计 */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .dashboard-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-title {
        font-size: 1.8rem;
    }
}