@charset "UTF-8";
/* CSS Document */

.bg_id_ice {
  background-color: var(--id_ice);
}

.bg_id_steel {
  background-color: var(--id_steel);
}

.font_id_steel {
  color: var(--id_steel);
}

body {
  color: var(--uni_black);
}

header.common {
  z-index: 999;
  position: relative;
}

/* hero */
main section#hero {
  width: 100%;
  max-width: 450px;
  margin-inline: auto;
}

main section#hero .hero_bg {
  position: relative;
  width: 100%;
  max-width: 450px;
  aspect-ratio: 450/975;
  overflow: hidden;
  opacity: 1;
  z-index: 0;
}

main section#hero .hero_bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../img/inde_r/idr_hero_bg.png") no-repeat center / 100%;
  transform-origin: center;
  transform: scale(1.08);
  will-change: transform;
  backface-visibility: hidden;
}

@keyframes hero-bg-scale-in {
  from {
    transform: scale(1.08);
  }
  to {
    transform: scale(1);
  }
}

main section#hero .hero_bg.scrollin::before {
  animation: hero-bg-scale-in 1.2s ease-out forwards;
}

.hero_bg_inner {
  position: absolute;
  inset: 0;
  text-align: center;
  display: grid;
  justify-items: center;
  align-content: start;
  z-index: 1;
  margin-top: 0;
}

#inde_r h1 {
  margin: 0;
  place-items: start;
  display: grid;
  font-size: clamp(26px, calc(29.3px + (100vw - 390px) * 0.0767), 33.9px);
  margin-top: clamp(310px, calc(356px + (100vw - 390px) * 0.9), 410px);
  transition-delay: 0.8s;
  margin-left: 0.3em;
}

h1 .label {
  text-align: left;
  display: inline-block;
  padding: 0.4em 0.3em 0.42em 0.47em;
  line-height: 1;
  letter-spacing: 0.11em;
  border: 1px solid var(--id_steel);
}

h1 .label:nth-child(2) {
  border-top: 0px solid transparent;
  border-bottom: 0px solid transparent;
}

h1 .label.bg_grid_blue {
  background-image:
    linear-gradient(#c9eff8 0.02em, transparent 0.02em),
    linear-gradient(90deg, #c9eff8 0.02em, transparent 0.02em);
  background-size: 0.36em 0.36em;
}

.dept_area_inner {
  width: 320px;
  margin-inline: auto;
}

#hero .dept_name {
  text-align: center;
  line-height: 1.6;
  margin-bottom: 50px;
  margin-top: 20px;
}

#hero .dept_name span.dept {
  font-size: 18px;
  letter-spacing: 0.08em;
}

#hero .dept_name span.major {
  font-size: 25px;
  letter-spacing: 0.12em;
  display: block;
}

#hero .dept_area h2 {
  margin-left: 0;
  line-height: 1;
  font-size: 22.7px;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 30px;
  text-align: left;
}

#hero h2 span {
  display: inline-block;
  padding: 0.13em 0.2em 0.23em 0.4em;
  background-color: var(--id_steel);
  margin-bottom: 10px;
}

#hero h3.voice_title {
  margin-top: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 23px;
  line-height: 0.98;
  letter-spacing: 0.1em;
}

#hero h3.voice_title::before,
#hero h3.voice_title::after {
  content: "";
  flex: 1;
  height: 1px;
  background-color: currentColor;
  max-width: 80px;
}

.hero_images {
  margin-top: 37px;
  width: 320px;
  margin-inline: auto;
}

.hero_images img {
  width: 320px;
  margin-top: 37px;
}

.hero_images img.hero_img02 {
  margin-top: 35px;
}

.hero_images img.hero_img03 {
  margin-top: 14.7px;
}

div.index ul li a {
  border: 1px solid var(--id_steel);
}

div.index ul li a::after {
  background: url(../img/inde_r/idr_arrow_circle.png) no-repeat center / contain;
}

/* reason */
.round_bg::before {
  background: var(--id_steel);
  z-index: 0;
}

.reason_content {
  z-index: 2;
  position: relative;
}

.reason_content.content01 {
  padding-bottom: 50px;
}

#reason .content02 h2 {
  letter-spacing: 0.025em;
}

p.reason_text {
  margin-block: 40px;
  letter-spacing: 0.05em;
}

.reason_content.content02 {
  margin-bottom: 0px;
}
.content01 summary.reason_acc_label {
  height: 96px;
}
.content02 summary.reason_acc_label {
  height: auto;
  padding-top: 0px;
}

.reason_acc_card {
  height: auto;
  padding-bottom: 60px;
}

.reason_acc_card img,
.features_acc_card img {
  width: 320px;
  height: 226px;
  border-radius: 10px 10px 0 0;
}

.reason_acc_subtitle,
.features_acc_subtitle {
  font-size: 14px;
  line-height: 1;
  letter-spacing: 0.1em;
  height: 24px;
  padding: 4.5px 10px 4px 12px;
  background: var(--id_steel);
  margin-block: 30px 20px;
  display: inline-block;
}

p.reason_acc_title {
  color: var(--id_steel);
  letter-spacing: 0.07em;
}

span.acc_arrow::after {
  background: url("../img/inde_r/idr_arrow_acc.png") no-repeat center / contain;
  top: 40px;
}

.content02 span.acc_arrow::after {
  top: 19px;
}

a.reason_cta {
  margin-top: 50px;
  padding: 18px 22px 19px 22px;
}

/* reason acc contents */

.reason_acc_contents_inner {
  width: 260px;
}

ul.reason_acc_list {
  width: 260px;
  margin-inline: auto;
}

ul.reason_acc_list li.reason_acc_list_content {
  font-weight: var(--font_bold);
  line-height: 2.06;
  letter-spacing: 0.1em;
  display: block;
  border-top: 1px solid var(--id_steel);
  position: relative;
  width: 194px;
  height: 71px;
  text-align: center;
  margin-left: 66px;
  padding-top: 18px;
}

ul.reason_acc_list li.reason_acc_list_content:last-child {
  border-bottom: 1px solid var(--id_steel);
}

.thema_list ul.reason_acc_list li.reason_acc_list_content {
  font-weight: var(--font_medium);
  line-height: 1.62;
  letter-spacing: 0.08em;
  width: 260px;
  height: 78px;
  text-align: center;
  position: static;
  margin-left: 0px;
  padding-top: 12.5px;
}

li.reason_acc_list_content::before {
  content: "";
  width: 60px;
  height: 60px;
  background: url("../img/inde_r/idr_game.png") no-repeat center / contain;
  top: 50%;
  transform: translateY(-50%);
  left: -66px;
  position: absolute;
}

.thema_list li.reason_acc_list_content::before {
  position: static;
}

li.reason_acc_list_content.arvr::before {
  background: url("../img/inde_r/idr_arvr.png") no-repeat center / contain;
}
li.reason_acc_list_content.program::before {
  background: url("../img/inde_r/idr_program.png") no-repeat center / contain;
}
li.reason_acc_list_content.ai::before {
  background: url("../img/inde_r/idr_ai.png") no-repeat center / contain;
}
li.reason_acc_list_content.ds::before {
  background: url("../img/inde_r/idr_ds.png") no-repeat center / contain;
}

ul.reason_acc_list li.reason_acc_list_content span {
  text-align: center;
}

p.reason_acc_text {
  margin-top: 10px;
  letter-spacing: 0.04em;
  margin-bottom: 30px;
}

.reason_acc_contents .face_images img {
  width: 260px;
  height: 201px;
}

.reason_acc_contents .face_images small {
  font-size: 13px;
  line-height: 1.46;
  letter-spacing: 0.1em;
  font-weight: var(--font_medium);
  margin-top: 6px;
}

.thema_list {
  margin-top: 20px;
}

.thema_list p.thema_list_title {
  font-size: 14px;
  line-height: 1;
  letter-spacing: 0.1em;
  border: 1px solid var(--id_steel);
  display: block;
  width: 260px;
  height: 35px;
  padding: 10px 10px 11px 10px;
  text-align: center;
  margin-bottom: 20px;
}

.thema_list p.etc {
  line-height: 1.62;
  letter-spacing: 0.08em;
  text-align: right;
  margin-top: 5px;
}

/* features*/

#features h2 span,
#future h2 span {
  border-bottom: 3px solid var(--id_steel);
}

.features_content.features_content_01 {
  border-bottom: 1px solid var(--id_steel);
  padding-bottom: 20px;
}

#features .features_content h3 {
  letter-spacing: 0.05em;
  color: var(--id_steel);
}

/* features acc */
summary.features_acc_label span.acc_more_button {
  border: 1px solid var(--id_steel);
}

p.features_acc_text {
  letter-spacing: 0.026em;
}

.cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.cards {
  margin-bottom: 30px;
}

.features_acc_card,
.gray_box {
  width: 320px;
  margin-inline: auto;
  border-radius: 10px;
  padding: 0 0 30px 0;
  background: #fff;
}

.features_acc_card .card_inner {
  width: 260px;
  margin-inline: auto;
  text-align: center;
}

.features_acc_title {
  font-size: 21px;
  font-weight: var(--font_bold);
  line-height: 1.57;
  letter-spacing: 0.1em;
  color: var(--id_steel);
  margin-bottom: 30px;
}

.features_acc_title span {
  display: block;
}

.features_acc_card.card2 img.company_logo {
  width: 166px;
  height: 26.871px;
  margin: 20px auto 25px;
}

.features_acc_card p.card_text {
  font-weight: var(--font_bold);
  line-height: 2;
  letter-spacing: 0.029em;
  text-align: justify;
}

a.features_acc_cta {
  border: 1px solid var(--id_steel);
  color: var(--id_steel);
  font-size: 15px;
  padding: 18px 36px 19px 36px;
}

article.gray_area {
  display: grid;
  gap: 20px;
  margin-block: 30px;
  position: relative;
}

article.gray_area .gray_box {
  padding-block: 30px 16px;
  padding-inline: 44px;
}

article.gray_area .gray_box ul {
  width: 236px;
  margin-inline: auto;
}

article.gray_area .gray_box ul li {
  display: flex;
  justify-content: space-between;
  line-height: 1.87;
  letter-spacing: 0.08em;
  align-items: center;
}

article.gray_area .gray_box ul li p {
  position: relative;
  margin-left: 1.1em;
  letter-spacing: 0.05em;
}

article.gray_area .gray_box ul li p::before {
  position: absolute;
  content: "●";
  width: 1em;
  height: 1em;
  top: 0;
  left: -1.05em;
}

article.gray_area .gray_box ul li span.app_icon {
  width: 25px;
  height: 24px;
  margin-block: 3px;
  display: block;
}

article.gray_area .gray_box ul li span.app_icon.ps {
  background: url("../img/inde_b/idb_ps.png") no-repeat center / contain;
}

article.gray_area .gray_box ul li span.app_icon.ai {
  background: url("../img/inde_b/idb_ai.png") no-repeat center / contain;
}

article.gray_area .gray_box ul li span.app_icon.ex {
  background: url("../img/inde_b/idb_ex.png") no-repeat center / contain;
}

article.gray_area .gray_box ul li span.app_icon.lr {
  background: url("../img/inde_b/idb_lr.png") no-repeat center / contain;
}

article.gray_area .gray_box ul li span.app_icon.pr {
  background: url("../img/inde_b/idb_pr.png") no-repeat center / contain;
}

article.gray_area .gray_box ul li span.app_icon.ac {
  background: url("../img/inde_b/idb_ac.png") no-repeat center / contain;
}

article.gray_area .gray_box p {
  line-height: 1.87;
  letter-spacing: 0.05em;
  text-align: center;
}

article.gray_area .gray_box p.etc {
  text-align: right;
}

article.gray_area .gray_box.box2 {
  position: relative;
  padding-bottom: 30px;
}

article.gray_area .gray_box.box2::before {
  position: absolute;
  content: "";
  width: 40px;
  height: 40px;
  background: url("../img/inde_r/idr_plus_circle.png") no-repeat center /
    contain;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
}

/* future */
#future h3 {
  background-color: var(--id_steel);
}

.future_content ul li::before {
  color: var(--id_steel);
}

.graph_balloon {
  border: 1px solid var(--id_steel);
}

.graph_balloon_value {
  color: var(--id_steel);
}

.graph_balloon.balloon_3 {
  left: 175px;
  border-radius: 0px 20px 20px 20px;
  background-color: var(--gl_yellow);
}

.company h4 {
  border-top: 1px solid var(--id_steel);
  border-bottom: 1px solid var(--id_steel);
}

/* interview */

.job_place {
  padding: 9.5px 0px 9.5px 0;
  border-top: 1px solid var(--in_black);
  border-bottom: 1px solid var(--in_black);
  font-size: 21px;
  line-height: 1;
  letter-spacing: 0.08em;
  margin-top: 25px;
}
.job_place span {
  width: 60px;
  height: 27.5px;
  font-size: 12px;
  text-align: center;
  letter-spacing: 0.08em;
  padding: 7px 0 8px 0;
  border-radius: 7px;
  border: 0.769px solid var(--in_black);
  justify-content: center;
  align-items: center;
  display: inline-flex;
  vertical-align: 0.25em;
  margin-inline: 1px 12px;
}
p.interviewee_data span {
  display: block;
}

p.interviewee_name span.highschool {
  margin-left: 1em;
  letter-spacing: 0.06em;
}

@media (min-width: 451px) {
  .layout_center {
    border-right: 1px solid var(--id_steel);
    border-left: 1px solid var(--id_steel);
  }
}

@media (min-width: 1120px) {
  header.common {
    position: fixed;
    z-index: 999;
  }

  main section#hero .hero_bg {
    margin-top: 4px;
  }
}

@media (hover: hover) and (pointer: fine) {
  a.reason_cta:hover {
    color: var(--id_steel);
  }

  summary.features_acc_label span.acc_more_button:hover,
  a.features_acc_cta:hover {
    background: var(--id_steel);
  }
}