body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    max-width: 850px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f8f9fa;
    color: #2c3e50;
}

header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
    margin-bottom: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
    margin: 0;
    font-size: 2em;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.intro {
    background-color: white;
    padding: 30px;
    margin-bottom: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #3498db;
}

.intro p {
    margin: 0;
    font-size: 1.05em;
    color: #555;
}

.gadget-item {
    background-color: white;
    padding: 30px;
    margin-bottom: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: box-shadow 0.3s ease, transform 0.2s ease;
}

.gadget-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.gadget-item h2 {
    color: #2c3e50;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 10px;
    margin-bottom: 15px;
    font-size: 1.5em;
    font-weight: 600;
}

.gadget-item p {
    color: #555;
    line-height: 1.7;
}

.recommendation {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    margin-top: 15px;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.recommendation:hover {
    background-color: #2980b9;
    transform: translateY(-1px);
}

.tip {
    background-color: #f0f8ff;
    padding: 15px;
    margin-top: 15px;
    border-left: 4px solid #3498db;
    border-radius: 4px;
    font-size: 0.95em;
}

.tip strong {
    color: #2980b9;
}

.final-tips {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    color: white;
    padding: 35px;
    margin-top: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.final-tips h2 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.8em;
    font-weight: 600;
}

.final-tips p {
    margin: 15px 0;
    line-height: 1.7;
}

footer {
    text-align: center;
    margin-top: 50px;
    padding: 25px;
    background-color: #2c3e50;
    color: white;
    border-radius: 8px;
    font-size: 0.95em;
}