/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f2f5;
    padding: 20px;
}

.table-container {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    width: 100%;
    max-width: 800px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: center;
}

.comparison-table th,
.comparison-table td {
    padding: 16px;
    border: 1px solid #e0e0e0;
    font-weight: 500;
}

/* 表头样式 */
.comparison-table th {
    background-color: #f8f9fa;
    color: #333;
    font-weight: 600;
}

/* 功能列样式 */
.comparison-table td:first-child {
    background-color: #f8f9fa;
    font-weight: 600;
    text-align: left;
    padding-left: 20px;
}

/* 左上角单元格对角线样式 */
.corner-cell {
    position: relative;
    padding: 0;
}

.corner-cell::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 49.5%, #e0e0e0 49.5%, #e0e0e0 50.5%, transparent 50.5%);
    pointer-events: none;
}

.diagonal-text {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.diagonal-vertical {
    transform: rotate(45deg);
}

/* 勾选和叉号样式 */
.check {
    color: #4caf50;
    font-size: 20px;
    font-weight: bold;
}

.cross {
    color: #f44336;
    font-size: 20px;
    font-weight: bold;
}

/* 悬停效果 */
.comparison-table tr:hover td {
    background-color: #f5f7fa;
    transition: background-color 0.2s ease;
}

/* 响应式调整 */
@media (max-width: 600px) {
    .comparison-table th,
    .comparison-table td {
        padding: 12px 8px;
        font-size: 14px;
    }
    
    .check, .cross {
        font-size: 18px;
    }
}