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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}


header {
    background-color: #4a90e2;
    color: white;
    padding: 1rem 0.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 0.5rem;
}

header h1 {
    text-align: center;
    font-size: 2rem;
    margin: 0 auto;
}

.home-link {
    color: white;
    text-decoration: none;
    background-color: rgba(255,255,255,0.2);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    margin-right: 1rem;
    transition: background-color 0.3s;
}

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

.back-link {
    color: white;
    text-decoration: none;
    background-color: rgba(255,255,255,0.2);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.back-link:hover {
    background-color: rgba(255,255,255,0.3);
}

.main-content {
    display: flex;
    flex-direction: row;
    gap: 1rem;
    margin-bottom: 2rem;
}

.sidebar {
    width: 120px;
    margin-bottom: 0;
    flex-shrink: 0;
}

@media (min-width: 769px) {
    .main-content {
        gap: 2rem;
    }
    
    .sidebar {
        width: 250px;
    }
}

.sidebar {
    background-color: white;
    border-radius: 8px;
    padding: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.sidebar h2 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #333;
    text-align: center;
}

.interface-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.interface-item {
    padding: 1rem;
    border: 2px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.interface-item:hover {
    border-color: #4a90e2;
    background-color: #f0f7ff;
}

.interface-item.active {
    border-color: #4a90e2;
    background-color: #4a90e2;
    color: white;
}

.interface-name {
    display: block;
    font-weight: bold;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.interface-desc {
    display: block;
    font-size: 0.8rem;
    opacity: 0.8;
}

.content {
    flex: 1;
    background-color: white;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.interface-info {
    background-color: #f0f7ff;
    color: #4a90e2;
    padding: 0.75rem 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    font-weight: bold;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 0.5rem;
        max-width: 100%;
    }
    
    header {
        padding: 0.8rem 0.5rem;
        flex-wrap: nowrap;
        gap: 0.4rem;
    }
    
    .home-link {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
        margin-right: 0;
    }
    
    .back-link {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .main-content {
        gap: 0.5rem;
    }
    
    .sidebar {
        width: 100px;
        padding: 0.75rem 0.5rem;
    }
    
    .sidebar h2 {
        font-size: 0.9rem;
        margin-bottom: 0.75rem;
        text-align: center;
    }
    
    .interface-list {
        display: flex;
        flex-direction: column;
        gap: 0.4rem;
    }
    
    .interface-item {
        padding: 0.5rem 0.4rem;
        text-align: center;
    }
    
    .interface-name {
        font-size: 0.75rem;
        margin-bottom: 0.15rem;
        display: block;
    }
    
    .interface-desc {
        font-size: 0.6rem;
        line-height: 1.2;
        display: block;
    }
    
    .content {
        padding: 0.75rem;
        flex: 1;
        min-width: 0;
    }
}

@media (max-width: 480px) {
    header {
        padding: 0.7rem 0.5rem;
        gap: 0.3rem;
    }
    
    .home-link {
        padding: 0.35rem 0.6rem;
        font-size: 0.8rem;
        margin-right: 0;
    }
    
    .back-link {
        padding: 0.35rem 0.6rem;
        font-size: 0.8rem;
    }
    
    .main-content {
        gap: 0.4rem;
    }
    
    .sidebar {
        width: 90px;
        padding: 0.6rem 0.4rem;
    }
    
    .sidebar h2 {
        font-size: 0.85rem;
        margin-bottom: 0.6rem;
    }
    
    .interface-list {
        gap: 0.3rem;
    }
    
    .interface-item {
        padding: 0.5rem 0.3rem;
    }
    
    .interface-name {
        font-size: 0.7rem;
        margin-bottom: 0.1rem;
    }
    
    .interface-desc {
        font-size: 0.55rem;
    }
    
    .content {
        padding: 0.6rem;
    }
}