Q.トップページのスライダーにフェードインで表示されるキャプションやボタンの表示速度を変更したい

A.下記の方法でカスタマイズしてください。

編集するファイル：　style.css
編集する箇所：　318行目

#header_slider.slider_video_mobile .caption > :nth-child(1) {
  -webkit-animation:sliderCaptionAnimation 1s ease forwards 1s; animation:sliderCaptionAnimation 1s ease forwards 1s;
}
#header_slider .item.slick-active .caption > :nth-child(2),
#header_slider.slider_video_mobile .caption > :nth-child(2) {
  -webkit-animation:sliderCaptionAnimation 1s ease forwards 2s; animation:sliderCaptionAnimation 1s ease forwards 2s;
}
#header_slider .item.slick-active .caption > :nth-child(3),
#header_slider.slider_video_mobile .caption > :nth-child(3) {
  -webkit-animation:sliderCaptionAnimation 1s ease forwards 3s; animation:sliderCaptionAnimation 1s ease forwards 3s;
}

　↓

#header_slider.slider_video_mobile .caption > :nth-child(1) {
  -webkit-animation:sliderCaptionAnimation 5s ease forwards 1s; animation:sliderCaptionAnimation 5s ease forwards 1s;
}
#header_slider .item.slick-active .caption > :nth-child(2),
#header_slider.slider_video_mobile .caption > :nth-child(2) {
  -webkit-animation:sliderCaptionAnimation 5s ease forwards 2s; animation:sliderCaptionAnimation 5s ease forwards 2s;
}
#header_slider .item.slick-active .caption > :nth-child(3),
#header_slider.slider_video_mobile .caption > :nth-child(3) {
  -webkit-animation:sliderCaptionAnimation 5s ease forwards 3s; animation:sliderCaptionAnimation 5s ease forwards 3s;
}