/* ── 日期推算工具页 ── */

/* 三列表单 */
.ts-form {
    grid-template-columns: 1fr 1fr 1fr;
}

/* 结果区 */
.tuisuan-result {
    margin-top: 1.5rem;
    background: #f8f9fb;
    border: 1px solid #e8eaf0;
    border-radius: 10px;
    padding: 1.5rem;
}

.tuisuan-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}

.tuisuan-from,
.tuisuan-to {
    text-align: center;
    flex: 1;
}

.tuisuan-label {
    display: block;
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 0.3rem;
}

.tuisuan-date {
    display: block;
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    font-family: 'Fira Code', monospace;
}

.tuisuan-to .tuisuan-date {
    color: #2563eb;
}

.tuisuan-week {
    display: block;
    font-size: 0.85rem;
    color: #666;
    margin-top: 0.2rem;
}

.tuisuan-arrow {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.tuisuan-op {
    display: inline-block;
    background: #2563eb;
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
}

/* 补充信息 */
.tuisuan-info {
    text-align: center;
    font-size: 0.85rem;
    color: #888;
    margin-top: 1rem;
    padding-top: 0.8rem;
    border-top: 1px solid #e8eaf0;
    line-height: 1.7;
}

/* ── Mobile ── */
@media (max-width: 640px) {
    .ts-form {
        grid-template-columns: 1fr;
    }

    .tuisuan-card {
        flex-direction: column;
        gap: 0.8rem;
    }

    .tuisuan-date {
        font-size: 1.1rem;
    }
}