.main {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
    color: var(--text-main);
}

.intro-container {
    text-align: center;
    margin-top: 5rem;
    margin-bottom: 3rem;
    padding-bottom: 1.5rem;
}

.intro-container h1 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

.intro-container .intro {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin: 0;
}

.manual-section {
    margin-bottom: 2rem;
}

.manual-card {
    display: flex;
    align-items: center;
    background-color: var(--bg-card);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-card);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    gap: 2rem;
    border: 1px solid transparent;
}

.manual-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--border-primary);
}

.icon-wrapper {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary-light);
    border-radius: 50%;
    padding: 15px;
}

.manual-icon {
    width: 100%;
    height: auto;
    object-fit: contain;
}

.text-content {
    text-align: left;
    flex: 1;
}

.text-content h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.text-content p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-gray);
    margin: 0;
}

.manual {
    text-align: left;
    font-size: larger;
    margin-bottom: 3rem;
}

.manual ul {
    padding-left: 0;
    margin-left: 0;
}

@media (max-width: 600px) {
    .manual-card {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .text-content {
        text-align: center;
    }

    .icon-wrapper {
        margin-bottom: 1rem;
    }
}