@charset "UTF-8";

/* wrapper
   ========================================================================== */
#wrapper {
	font-size: 106%!important;
	line-height: 2.0;
	background: url(img/mainvisual.png) no-repeat 50% 0;
  /* background-size: 100% 355px; */
	position: relative;
}

.text-b{
  font-weight: 900;
}

.text-c {
  text-align: center;
}

/* flow
   ========================================================================== */

#flow {
  position: relative;
  width: 1000px;
  margin: 0 auto;
  /*background: url(img/flow_bg.png) no-repeat 155px 0;*/
  /* background: url(img/line.gif) repeat-y 500px 0; */
  /* background: url(img/line.gif) repeat-y center top; */
  background-image: none;
  text-align: center;
}
#flow::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  height: calc( 100% - 100px );
  margin-top: 100px;
  background: url(img/line.gif) repeat-y center top;
  z-index: 0;
}

.flow_section {
  position: relative;
  padding-left: 0;
  margin-bottom: 80px;
  z-index: 1;
}

#flow .time {
  position: relative;
  text-align: center;
  z-index: 1;
}

#flow .flow_heading {
  padding-bottom: 20px;
  text-align: center;
  font-weight: bold;
  font-style: italic;
  color: #003399;
  font-size: 40px;
  letter-spacing: -.05em;
  z-index: 1;
}

#preliminary {
  width: 1000px;
  margin: 0 auto;
}
.preliminary_inner {
  padding-block: 40px 100px;
}
.preliminary_heading {
  margin-bottom: 20px;
  text-align: center;
  font-weight: bold;
  font-style: italic;
  color: #003399;
  font-size: 40px;
}
.preliminary_gallery {
  display: flex;
  /*justify-content: center;*/
  flex-wrap: wrap;
  gap: 10px;
}
.preliminary_gallery_item {
  width: calc( calc( 100% - 10px * 3 ) / 4 );
  background-color: rgba(0,0,0,0.1);
}
.preliminary_gallery_item img {
  max-width: 100%;
}