.yc-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.yc-result {
    margin-top: 1.5rem;
}

.yc-main-card {
    padding: 1.4rem;
    border-radius: 12px;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    text-align: center;
}

.yc-main-label {
    color: #2563eb;
    font-size: 0.92rem;
    margin-bottom: 0.35rem;
}

.yc-main-value {
    font-size: 2rem;
    font-weight: 700;
    color: #1d4ed8;
}

.yc-main-sub {
    margin-top: 0.45rem;
    color: #1e293b;
    font-weight: 600;
}

.yc-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.yc-item {
    padding: 1rem;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
}

.yc-item span {
    display: block;
    margin-bottom: 0.45rem;
    color: #64748b;
    font-size: 0.9rem;
}

.yc-item strong {
    color: #0f172a;
}

.yc-sub-tools {
    margin-top: 2rem;
}

.yc-article p {
    margin: 0 0 1rem;
    color: #475569;
    line-height: 1.9;
}

@media (max-width: 640px) {
    .yc-form,
    .yc-grid {
        grid-template-columns: 1fr;
    }

    .yc-main-value {
        font-size: 1.5rem;
    }
}