Japanese apparel retailer Uniqlo posted higher revenue and double-digit profit growth in mainland China over the three-month period ending in May, defying sluggish domestic consumption and lingering bilateral tensions. Same-store sales rose, driven by enhanced marketing and “buoyant demand” for summer products in May, when temperatures started to rise. Easy pants, UV-protection items, T-shirts and other summer products all saw strong sales, according to the earnings report from Fast Retailing,...