.fequal-prompt {
    font-size: 1.3rem;
    font-weight: 700;
    text-align: center;
    margin: 0.5rem 0 0.2rem;
    color: #475569;
}

.fequal-pics {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.4rem;
    margin: 0.6rem 0 0.2rem;
}

.fequal-pics .fequal-pic {
    width: 170px;
    height: 140px;
}

.fequal-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.2rem;
    margin: 0.8rem 0;
    font-size: 2.6rem;
    font-weight: 800;
    color: #1e293b;
}

.fequal-sign {
    font-size: 2.6rem;
    font-weight: 800;
    color: #334155;
}

.fequal-input {
    width: 3.4ch;
    height: 2.8rem;
    text-align: center;
    font-size: 2.2rem;
    font-weight: 800;
    color: #e2574c;
    background: #ffffff;
    border: 2px solid #cbd5e1;
    border-radius: 10px;
}

.fequal-input:focus {
    border-color: #38bdf8;
    outline: none;
}

.fequal-options {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 0.8rem 0;
}

.fequal-option {
    min-width: 64px;
    font-size: 1.8rem;
    font-weight: 800;
    color: #1e293b;
    background: #ffffff;
    border: 2px solid #cbd5e1;
    border-radius: 14px;
    padding: 0.4rem 1rem;
    cursor: pointer;
}

.fequal-option:hover {
    transform: scale(1.05);
    border-color: #94a3b8;
}