/* 手機圖片 */
.hero-1 {
  background: url("../images/frontpage/hero/erp-system-for-factory-management-hero-slider01@1x.jpg")
    center/cover no-repeat;
}
.hero-2 {
  background: url("../images/frontpage/hero/manufacturing-erp-software-solution-hero-slider02@1x.jpg")
    center/cover no-repeat;
}
.hero-3 {
  background: url("..//images/frontpage/hero/factory-production-management-erp-hero-slider03@1x.jpg")
    center/cover no-repeat;
}

/* tablet圖片 */
@media (min-width: 768px) {
  .hero-1 {
    background: url("../images/frontpage/hero/erp-system-for-factory-management-hero-slider01@tablet.jpg")
      center center / cover no-repeat;
  }

  .hero-2 {
    background: url("../images/frontpage/hero/manufacturing-erp-software-solution-hero-slider02@tablet.jpg")
      center center / cover no-repeat;
  }

  .hero-3 {
    background: url("../images/frontpage/hero/factory-production-management-erp-hero-slider03@tablet.jpg")
      center center / cover no-repeat;
  }
}

/* desktop圖片 */
@media (min-width: 1024px) {
  .hero-1 {
    background: url("../images/frontpage/hero/erp-system-for-factory-management-hero-slider01@desktop.jpg")
      center center / cover no-repeat;
  }

  .hero-2 {
    background: url("../images/frontpage/hero/manufacturing-erp-software-solution-hero-slider02@desktop.jpg")
      center center / cover no-repeat;
  }

  .hero-3 {
    background: url("../images/frontpage/hero/factory-production-management-erp-hero-slider03@desktop.jpg")
      center center / cover no-repeat;
  }
}