/* ── 房贷提前还款计算器专属样式 ── */

/* 表单分区标题 */
.form-section-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 0.8rem;
    padding-left: 0.6rem;
    border-left: 3px solid #2563eb;
}

/* 4列表单 */
.calc-form {
    grid-template-columns: repeat(4, 1fr);
}

/* 3列表单（提前还款信息） */
.calc-form-3col {
    grid-template-columns: 1fr 1fr 1fr;
}

/* 原始方案概览 */
.result-summary {
    background: #f8f9fb;
    border: 1px solid #e8eaf0;
    border-radius: 8px;
    padding: 1rem 1.2rem;
    margin-bottom: 1rem;
}

.summary-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: #666;
    margin-bottom: 0.8rem;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.summary-label {
    font-size: 0.8rem;
    color: #999;
}

.summary-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: #333;
    font-family: 'Fira Code', monospace;
}

/* ── Mobile ── */
@media (max-width: 900px) {
    .calc-form {
        grid-template-columns: 1fr 1fr;
    }
    .calc-form-3col {
        grid-template-columns: 1fr 1fr;
    }
    .summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .calc-form {
        grid-template-columns: 1fr;
    }
    .calc-form-3col {
        grid-template-columns: 1fr;
    }
    .summary-grid {
        grid-template-columns: 1fr 1fr;
    }
}