/* ── 当前汇率卡片 ── */
.currency-rate-card {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f4f8 100%);
    border: 1px solid #d0e4f0;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.currency-rate-label {
    font-size: 0.85rem;
    color: #999;
    margin-bottom: 0.3rem;
}

.currency-rate-value {
    font-size: 2.4rem;
    font-weight: 700;
    font-family: 'Fira Code', monospace;
    color: #2563eb;
    line-height: 1.3;
}

.currency-rate-time {
    font-size: 0.78rem;
    color: #999;
    margin-top: 0.3rem;
}

/* ── 双向换算 ── */
.currency-calc {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.currency-direction {
    padding: 1.2rem;
    background: #f8f9fb;
    border: 1px solid #e8eaf0;
    border-radius: 10px;
}

.currency-dir-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: #2563eb;
    margin-bottom: 0.8rem;
}

.currency-direction .calc-form {
    display: flex;
    gap: 1rem;
}

/* ── 常用金额速算 ── */
.quick-calc {
    margin-top: 1.5rem;
}

.quick-calc-title {
    font-size: 1rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 0.8rem;
}

.quick-calc-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
}

.quick-calc-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 1rem;
    background: #f8f9fb;
    border: 1px solid #e8eaf0;
    border-radius: 8px;
    font-size: 0.88rem;
}

.quick-calc-from {
    color: #666;
}

.quick-calc-to {
    font-weight: 600;
    color: #2563eb;
    font-family: 'Fira Code', monospace;
}

/* ── Mobile ── */
@media (max-width: 640px) {
    .currency-rate-value {
        font-size: 1.8rem;
    }

    .currency-direction .calc-form {
        flex-direction: column;
    }

    .quick-calc-grid {
        grid-template-columns: 1fr;
    }
}