body {
  background-image: url("../images/about/system/bg_main.jpg");
  background-repeat: no-repeat;
  background-position: left top;
  background-size: 100%;
  min-height: 716px; }

#title_system {
  text-align: center;
  font-size: 1px;
  line-height: 0;
  margin-top: 90px;
  margin-bottom: 80px; }

#system_list {
  position: relative;
  margin: 0;
  padding: 0;
  left: 0;
  right: 0;
  margin: auto;
  margin-bottom: 20px;
  width: 100%; }
  #system_list li {
    margin: 0;
    padding: 0;
    height: 399px; }

#background-monster_0 {
  visibility: 'hidden';
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  background-image: url(../images/about/system/bg_monster_0.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 130px 75px; }

#background-monster_1 {
  visibility: 'hidden';
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  background-image: url(../images/about/system/bg_monster_1.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 320px 293px; }

#background-monster_2 {
  visibility: 'hidden';
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  background-image: url(../images/about/system/bg_monster_2.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 320px 458px; }

#background-monster_3 {
  visibility: 'hidden';
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  background-image: url(../images/about/system/bg_monster_3.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 121px 114px; }

#background-monster_4 {
  visibility: 'hidden';
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  background-image: url(../images/about/system/bg_monster_4.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100px 100px; }

#background-monster_1_5 {
  visibility: 'hidden';
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  background-image: url(../images/about/system/bg_monster_1_5.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 320px 492px; }

#background-monster_2_5 {
  visibility: 'hidden';
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  background-image: url(../images/about/system/bg_monster_2_5.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 320px 170px; }

#step_1_wrapper {
  display: block;
  width: 301px;
  height: 337px;
  margin: 0 auto;
  background-image: url(../images/about/system/bg_step_1.png);
  background-repeat: no-repeat;
  background-size: 301px 337px;
  background-position: center top; }

#step_2_wrapper {
  display: block;
  width: 301px;
  height: 337px;
  margin: 0 auto;
  background-image: url(../images/about/system/bg_step_2.png);
  background-repeat: no-repeat;
  background-size: 301px 337px;
  background-position: center top; }

#step_3_wrapper {
  display: block;
  width: 301px;
  height: 337px;
  margin: 0 auto;
  background-image: url(../images/about/system/bg_step_3.png);
  background-repeat: no-repeat;
  background-size: 301px 337px;
  background-position: center top; }

#step_4_wrapper {
  display: block;
  width: 301px;
  height: 337px;
  margin: 0 auto;
  background-image: url(../images/about/system/bg_step_4.png);
  background-repeat: no-repeat;
  background-size: 301px 337px;
  background-position: center top; }

#step_5_wrapper {
  display: block;
  width: 301px;
  height: 337px;
  position: relative;
  z-index: 2;
  left: 0;
  right: 0;
  margin: auto;
  background-image: url(../images/about/system/bg_step_5.png);
  background-repeat: no-repeat;
  background-size: 301px 337px;
  background-position: center top; }

.stepTitle {
  margin: 0 auto;
  padding-top: 130px;
  padding-bottom: 15px; }

#title_step_1 {
  width: 122px; }

#title_step_2 {
  width: 111px; }

#title_step_3 {
  width: 129px; }

#title_step_4 {
  width: 109px; }

#title_step_5 {
  width: 109px; }

.stepText {
  font-size: 12px;
  color: #000;
  padding: 0 30px;
  line-height: 1.5;
  letter-spacing: -0.2px;
  margin-bottom: 1.75em;
  text-align: left;
  text-align: justify;
  text-justify: inter-ideograph; }

#step_5 {
  position: relative; }

#bottomMask {
  position: absolute;
  width: 320px;
  height: 350px;
  top: 100px;
  z-index: 1;
  background-color: #000; }

footer.footer {
  margin-top: 10px;
  background-color: #000; }