@charset "UTF-8";
.sand-whole {
  margin-bottom: 6rem;
}
/* ----------------------------------------
.sand-mv
---------------------------------------- */
.sand-mv {
  margin-bottom: 4rem;
}
.sand-title {
  font-size: 2.1rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
.sand-text {
  margin-bottom: 3rem;
}
.sand-text.center {
  text-align: left;
}
.sand-text.mb {
  margin-bottom: 3rem;
}
/* ----------------------------------------
.sand-list
---------------------------------------- */
.sand-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 4rem;
  padding-bottom: 4rem;
}
/* ----------------------------------------
.youtube-area
---------------------------------------- */
.youtube-area {
  margin-bottom: 6rem;
}
.youtube-box {
  max-width: none;
}
.youtube-channel {
  font-size: 1.8rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}
.youtube-title {
  font-size: 1.4rem;
  line-height: 1.7;
  margin-top: 1.5rem;
}
/* ----------------------------------------
.sand-b-img
---------------------------------------- */
.sand-b-img {
  padding-bottom: 4rem;
  background-size: auto;
}
.comparison-box {
  max-width: none;
}
.comparison-img.m-1 {
  padding: 0;
  margin-bottom: 1.5rem;
}
.comparison-img.m-2 {
  padding: 0;
}
/* ----------------------------------------
.casting-whole
---------------------------------------- */
.casting-whole {
  max-width: none;
}
.casting-area {
  margin-bottom: 3rem;
}
.casting-area:last-child {
  margin-bottom: 6rem;
}
.casting-title {
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
}
.casting-text {
  font-size: 1.4rem;
  position: relative;
  z-index: 0;
}
.casting-text.a-1 {
  margin-bottom: 1.5rem;
}
.casting-text.a-2 {
}
.casting-text.a-3 {
  margin-bottom: 1rem;
}
.casting-text::before {
  content: "";
  position: absolute;
  left: 50%;
  margin-left: -1.5rem;
  bottom: -2.5rem;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 1.5rem 1.5rem 0 1.5rem;
  border-color: #1976d2 transparent transparent transparent;
}
.casting-text.a-4::before {
  display: none;
}
/* ----------------------------------------
sample-list
---------------------------------------- */
.sample-list {
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
.explan-text {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  font-size: 1.6rem;
  line-height: 2;
  background-color: #f2f6f8;
  padding: 2.5rem 1.5rem;
}
/* ----------------------------------------
.c-contents
---------------------------------------- */
.c-contents.mt {
  padding: 6rem 1.5rem 0;
}
/* ----------------------------------------
.c-container
---------------------------------------- */
.c-container {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  gap: 1.5rem;
}
.c-container:last-child {
  padding: 1.5rem;
  gap: 1.5rem;
}
.c-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.first-row {
  justify-items: center;
}
.first-row img {
  grid-column: 1 / span 2;
  width: calc((100% - 1.5rem) / 2);
  height: auto;
}
.second-row figure {
  position: relative;
  z-index: 0;
}
.second-row figure:first-child:before {
  content: "";
  position: absolute;
  top: 50%;
  right: -1.4rem;
  margin-top: -0.8rem;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0.8rem 0 0.8rem 1rem;
  border-color: transparent transparent transparent #0068b7;
  z-index: 1;
}
.second-row figure::after {
  display: none;
}
.second-row figure img {
  width: 100%;
  height: auto;
}