@charset "utf-8";
/* page setting
--------------------------------------------------------- */
body { background: transparent; }
.wind-bg { background: none; }
.thunder-bg { background: none; }
#area-header { background: transparent none; }
#area-billboard { background: transparent; }
#area-main { background: transparent none; }
#area-side-a { background: transparent; }
#area-side-b { background: transparent; }
#area-footer { background: transparent; }
#area-contents { background: transparent; }

#bk2228 { background: transparent; }
#bk2229 { background: transparent none; }
#bk2230 { background: #FFFFFF; }
#bk2231 { background: #FFFFFF; }
#bk3851 { background: #FFFFFF; }
#bk4091 { background: #FFFFFF; }
#bk4092 { background: #FFFFFF; }