.guide-section {
    margin-bottom: 4rem;
    padding: 2rem;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.guide-section h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #eee;
    position: relative;
}

.guide-section h2::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background-color: #16a085;
}

.guide-section h3 {
    color: #34495e;
    margin: 2rem 0 1rem;
    font-size: 1.4rem;
}

.guide-section p {
    color: #555;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.step-box {
    background-color: #f8f9fa;
    border-left: 4px solid #16a085;
    padding: 1.5rem;
    margin: 1rem 0;
    border-radius: 4px;
}

.step-box h4 {
    color: #16a085;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
}

.step-box h4 i {
    margin-right: 0.5rem;
}

.feature-card {
    background-color: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background-color: #e8f6f3;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.feature-icon i {
    color: #16a085;
    font-size: 1.5rem;
}

.tip-box {
    background-color: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 1.5rem;
    margin: 1rem 0;
    border-radius: 4px;
}

.tip-box h4 {
    color: #856404;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
}

.tip-box h4 i {
    margin-right: 0.5rem;
}

.guide-nav {
    position: sticky;
    top: 20px;
    background-color: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.guide-nav h3 {
    color: #2c3e50;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #eee;
}

.guide-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.guide-nav li {
    margin-bottom: 0.5rem;
}

.guide-nav a {
    color: #555;
    text-decoration: none;
    display: block;
    padding: 0.5rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.guide-nav a:hover {
    background-color: #e8f6f3;
    color: #16a085;
    padding-left: 1rem;
}

.guide-nav a i {
    margin-right: 0.5rem;
    width: 20px;
    text-align: center;
}

.image-example {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
    background-color: #f8f9fa;
}

.image-example img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.image-example figcaption {
    margin-top: 0.5rem;
    color: #6c757d;
    font-style: italic;
    text-align: center;
}