Introduction animation featuring a vertical neon line bar splitting into two , then merging back into one

introduction neon animation opening glowing two lines vertical bar splitting teaser merging start beginning yellow and green 1980s aesthetic presentation genesis transition overture inception compelling engaging launch abstract animated attentiongrabbing commencement establishing forepart futuristic initiate into the darkness intro introductory leadin line motion onset preamble preface prelude reflection shiny sleek unveiling vibrant welcoming