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

body {
    font-family: 'Segoe UI', sans-serif;
    background: #f0f2f5;
}

.main {
    max-width: 1200px;
    margin: 20px auto;
    padding: 15px;
}

.box {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.item {
    text-decoration: none;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.03);
    transition: transform 0.3s ease;
    overflow: hidden;
}

.item:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}

.logo {
    display: flex;
    align-items: center;
    padding: 15px;
    gap: 15px;
    border-bottom: 1px solid #f0f0f0;
}

.logo img {
    height: 50px;
    width: auto;
    border-radius: 6px;
    background: #f8f9fa;
    object-fit: cover;
}

.logo h3 {
    font-size: 1rem;
    font-weight: 500;
    color: #1a73e8;
}

.desc {
    padding: 15px;
    font-size: 0.9rem;
    color: #666;
}

.disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .logo img {
        height: 45px;
    }
    
    .main {
        margin: 15px auto;
        padding: 10px;
    }
    
    .box {
        padding: 15px;
        gap: 15px;
    }
    
    .item {
        border-radius: 6px;
    }
    
    .logo {
        padding: 12px;
        gap: 12px;
    }
    
    .logo h3 {
        font-size: 0.95rem;
    }
    
    .desc {
        padding: 12px;
        font-size: 0.85rem;
    }
}