/* responsive */
@media screen and (max-width: 1199px) {

}

@media screen and (max-width: 991px) {
  .text-70 {font-size: 6.0rem;line-height: 1.5}
  .text-60 {font-size: 5.0rem;}
}

@media screen and (max-width: 768px) {
  /* content title */
  .heading_1 {font-size: 3.0rem;}
  .heading_2 {font-size: 2.5rem;}
  .heading_3 {font-size: 2.2rem;}
  .subtitle_1 {font-size: 2.0rem;}
  .subtitle_2 {font-size: 1.8rem;}
  .subtitle_3{font-size: 1.6rem;}
  .subtitle_4{font-size: 1.4rem;}

  /* All Font */
  .text-12 {font-size: 1.2rem;line-height: 1.8rem}
  .text-14 {font-size: 1.4rem;line-height: 2rem}
  .text-16 {font-size: 1.4rem;line-height: 2rem}
  .text-18 {font-size: 1.6rem;line-height: 2.2rem}
  .text-20 {font-size: 1.8rem;line-height: 2.4rem}
  .text-24 {font-size: 2.1rem;line-height: 2.7rem}
  .text-28 {font-size: 2.2rem;line-height: 2.8rem}
  .text-30 {font-size: 2.4rem;line-height: 3rem}
  .text-36 {font-size: 2.5rem;line-height: 3.1rem}
  .text-40 {font-size: 3rem;line-height: 3.8rem}
  .text-48{font-size: 3.6rem;line-height: 4rem;}
  .text-60 {font-size: 4.2rem;}
  .text-70 {font-size: 4.8rem;line-height: 1.5}

  /* buttons */
  .normal-button,
  .secondary-button,
  .selection-button,
  .square-button,
  .watchvideo-button
  {font-size: 1.6rem;}



  /* margin */
  .buffer_xxl{margin-bottom: 40px;}
  .buffer_xl{margin-bottom: 32px;}
  .buffer_lg{margin-bottom: 25px;}
  .buffer_md{margin-bottom: 15px;}
  .buffer_sm{margin-bottom: 12px;}
  .buffer_xs{margin-bottom: 10px;}
}

@media screen and (max-width: 768px) {
  .text-60 {font-size: 3.0rem;}
  .text-70 {font-size: 3.8rem;line-height: 1.5}
}