.usage-container {
    margin: 114px auto;
    line-height: 1.6;
    color: #333;
}

.usage-wrapper {
    background: #fff;
    padding: 60px 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.usage-wrapper h1 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    border-bottom: 3px solid #3498db;
    padding-bottom: 20px;
}

.usage-content {
    margin-top: 40px;
}

/* Articles */
.usage-article {
    margin-bottom: 40px;
    padding: 30px;
    background: #fff;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    scroll-margin-top: 100px;
}

.usage-article h2 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #3498db;
}

.usage-article p {
    margin-bottom: 15px;
    line-height: 1.7;
    font-size: 0.95rem;
}

/* Sub Items */
.usage-item {
    background: #f8f9fa;
    padding: 15px 20px;
    border-radius: 5px;
    margin: 15px 0;
    border-left: 3px solid #3498db;
}

.usage-item p {
    margin-bottom: 10px;
}

.usage-item p:last-child {
    margin-bottom: 0;
}

/* Numbered Items */
.numbered-item {
    margin-bottom: 15px;
    padding-left: 0;
}

.numbered-item strong {
    color: #2c3e50;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .usage-container {
        padding: 20px 15px;
        margin: 80px auto;
    }

    .usage-wrapper {
        padding: 30px 20px;
    }

    .usage-wrapper h1 {
        font-size: 2rem;
    }

    .usage-article {
        padding: 20px;
    }

    .usage-article h2 {
        font-size: 1.2rem;
    }

    .usage-item {
        padding: 12px 15px;
    }
}

@media (max-width: 480px) {
    .usage-wrapper h1 {
        font-size: 1.8rem;
    }

    .usage-article h2 {
        font-size: 1.1rem;
    }

    .usage-item {
        padding: 10px 12px;
    }
}