NEW YORK — Sporty, languid and elegant might seem to be contradictory terms, but they all came together in the athletic elements of Ralph Lauren’s spring collection. No one can create a Gatsby moment quite like Lauren, and he proved it with a stunning opening lineup that would have been ideal for Daisy Buchanan. There was a white cabled varsity sweater elongated into a flippy little dress, for example, and a baseball-inspired, pinstriped leather suit. Here, a sequined silk sweater over a little stretch silk tennis dress. For more on New York, see today’s review and London shows.