斯1girl, navy sailor dress, dark navy blue dress, fitted A-line silhouette, off-shoulder sailor neckline, white sailor collar, navy double stripe trim on collar, white chest yoke panel, V-shaped sailor front panel, decorative sailor brooch on collar, navy halter strap at back of neck, short white puff sleeves, gathered sleeve structure, navy ribbon loop accents on sleeves, fitted waistline, princess seam construction, double-breasted side button placement, decorative silver buttons on both sides of bodice, smooth tailored skirt, short skirt length, white double stripe trim at hem, white lace underskirt visible from hem, classic naval aesthetic, strict color arrangement, only dark navy blue dress body, only white sailor collar, only white puff sleeves, only silver buttons, only navy stripe trim, only navy sleeve accents斯波将輝