From energetic Tokyo to champagne-fuelled Osaka and gastronomic Kyoto, three boutique hotels prove that Japan’s Golden Route comes with welcome moments of calm. By Amy Van | Photos courtesy of: THE TOKYO STATION HOTEL, FAUCHON L’HÔTEL KYOTO, CUVEE J2 HOTEL OSAKA From Tokyo’s kinetic pulse to Kyoto’s layered history and Osaka’s effervescent food culture, a…