/* ===== Discount Block - 优惠模块（右侧栏内） ===== */
.discount-block {
    border-bottom: 1px solid var(--border-color);
}

.discount-header {
    padding: 14px 20px;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
}

.discount-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.discount-body {
    padding: 16px 20px;
}

.discount-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.discount-item {
    display: flex;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.discount-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.discount-item:first-child {
    padding-top: 0;
}

.item-label {
    flex-shrink: 0;
    width: 70px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding-top: 9px;
    text-align: right;
}

.item-content {
    flex: 1;
    min-width: 0;
}

/* Select */
.discount-select {
    width: 100%;
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-white);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.discount-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 160, 227, 0.1);
}

.discount-select:hover {
    border-color: var(--primary);
}

/* Jifen Input */
.jifen-input-group {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}

.jifen-input {
    width: 100px;
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-white);
    color: var(--text-primary);
    font-size: 0.85rem;
    transition: var(--transition);
}

.jifen-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 160, 227, 0.1);
}

.jifen-input::placeholder {
    color: var(--text-light);
}

.jifen-result {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.jifen-result .c-red {
    color: var(--primary);
    font-weight: 600;
}

.jifen-tip {
    font-size: 0.78rem;
    color: var(--text-light);
    line-height: 1.5;
}

.jifen-error {
    display: block;
    color: #e74c3c;
    font-size: 0.78rem;
    margin-top: 4px;
}

/* ===== Responsive: Mobile (<=1024px) ===== */
@media (max-width: 1024px) {
    .discount-block {
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        margin-bottom: 16px;
    }

    .discount-body {
        padding: 16px;
    }
}

@media (max-width: 768px) {
    .discount-item {
        flex-direction: column;
        gap: 6px;
        padding: 10px 0;
    }

    .item-label {
        width: 100%;
        text-align: left;
        padding-top: 0;
        font-weight: 600;
        color: var(--text-primary);
    }

    .jifen-input-group {
        flex-direction: column;
        align-items: flex-start;
    }

    .jifen-input {
        width: 100%;
    }
}