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

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    max-height: 70px;
    max-width: 220px;
    object-fit: contain;
    /* 确保logo不会失真，并保持原始比例 */
}

/* 临时logo样式 */
.temp-logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2c3e50;
    padding: 0.5rem 0;
    letter-spacing: 1px;
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.construction-message {
    text-align: center;
    max-width: 800px;
    padding: 3rem;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
}

.construction-message h1 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 2.2rem;
}

.construction-message p {
    color: #555;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 1.5rem 5%;
    text-align: center;
    margin-top: auto;
}

.footer-content p {
    margin: 0.5rem 0;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .logo {
        max-height: 50px;
        max-width: 160px;
    }
    
    .temp-logo {
        font-size: 1.2rem;
    }
    
    .construction-message {
        padding: 2rem 1rem;
    }
    
    .construction-message h1 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    header {
        padding: 0.8rem 3%;
    }
    
    .logo {
        max-height: 40px;
        max-width: 140px;
    }
    
    .temp-logo {
        font-size: 1rem;
    }
    
    .construction-message h1 {
        font-size: 1.5rem;
    }
    
    .construction-message p {
        font-size: 1rem;
    }
}