/* 五行判元系统 - 样式表 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'SimHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

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

/* 头部样式 */
.main-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
}

.main-nav {
    display: flex;
    gap: 2rem;
}

.main-nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background 0.3s;
}

.main-nav a:hover {
    background: rgba(255,255,255,0.2);
}

.main-nav a.home-link {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    font-weight: bold;
}

.main-nav a.home-link:hover {
    background: rgba(255,255,255,0.3);
}

/* 主内容区 */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

/* 欢迎区域 */
.welcome-section {
    text-align: center;
    margin-bottom: 3rem;
}

.welcome-section h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #667eea;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
}

/* 功能卡片网格 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #764ba2;
}

.feature-card ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.feature-card ul li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.feature-card ul li:last-child {
    border-bottom: none;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: opacity 0.3s;
}

.btn:hover {
    opacity: 0.9;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #555;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* 结果展示 */
.result-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin-top: 2rem;
}

.result-title {
    font-size: 1.8rem;
    color: #667eea;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid #667eea;
    padding-bottom: 0.5rem;
}

.bazi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.bazi-item {
    text-align: center;
    padding: 1rem;
    background: #f9f9f9;
    border-radius: 5px;
}

.bazi-item .label {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.bazi-item .value {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
}

/* 页脚 */
.main-footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

.main-footer a {
    color: #fff;
    text-decoration: underline;
    transition: color 0.3s;
}

.main-footer a:hover {
    color: #667eea;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .bazi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}