@charset "utf-8";

/* =====================================
  common
===================================== */

:root {
  --color-research-blue: #009EBE;
  --color-alert: #DC0909;
}

html {
  scroll-padding-top: 15px;
}
html:has(.scroll-point) {
  scroll-padding-top: 180px;
}

.container {
  max-width: 1164px;
  margin: 0 auto;
  padding: 96px min(12vw, 162px) 80px;
  background-color: var(--color-mono50);
  border-radius: 60px;
  position: relative;
}
.container:has(+ .container-arrow) {
  border-radius: 60px 60px 0 0;
}
.container:has(+ .container) {
  padding-bottom: 0;
  border-radius: 60px 60px 0 0;
}
.container + .container {
  padding-top: 80px;
  border-radius: 0 0 60px 60px;
}
@media screen and (max-width: 767px) {
  html:has(.scroll-point) {
    scroll-padding-top: 240px;
  }

  .container {
    padding: 48px 16px 40px;
    border-radius: 20px;
  }
  .container:has(+ .container-arrow),
  .container:has(+ .container) {
    border-radius: 20px 20px 0 0;
  }
  .container + .container {
    padding-top: 40px;
    border-radius: 0 0 20px 20px;
  }
}


/* title */
.container__title {
  padding: 20px 160px;
  background-color: var(--color-mono50);
  border-radius: 40px;
  font-size: 0;
  word-break: keep-all;
  text-align: center;
  position: absolute;
  top: -48px;
  left: 50%;
  transform: translate(-50%, 0);
}
.container__title img{
  max-width: none;
}
.container__title--h3 {
  padding: 12px 32px;
  background-color: var(--color-mono100);
  font-size: 1.75rem;/* 28px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.84px;
  position: relative;
}
.container__title--h3::before {
  content: "";
  width: 8px;
  height: 100%;
  background-color: var(--color-research-blue);
  border-radius: 9999px;
  position: absolute;
  top: 0;
  left: 0;
}
.caution + .container__title--h3,
.column-2 + .container__title--h3 {
  margin-top: 80px;
}
.column-2 + .column-2{
  margin-top: 56px;
}
.container__title-lead {
  display: block;
  width: 100%;
  margin-top: 16px;
  font-size: 1.25rem;/* 20px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.6px;
  text-align: center;
}
.sub-title-contents{
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 20px;
  margin-bottom: 40px;
}
.sub-title-contents.no-img{
  justify-content: center;
  flex-direction: column;
}
.sub-title-contents .container__title-lead{
  margin-top: 0;
  font-size: 1.125rem;/* 18px */
  line-height: 1.8;
}
.sub-title-contents .contents-text{
  font-size: 1.75rem;/* 28px */
}
.sub-title-contents .contents-image {
  max-width: 200px;
  width: 200px;
  position: relative;
}
.sub-title-contents .contents-image::after {
  content: "";
  display: block;
  position: absolute;
  border-radius: 12px;
  inset: 5px 0 0 0;
  box-shadow: 0 6px 10px -2px #0000001A;
}


@media screen and (max-width: 767px) {
  .container__title {
    width: 295px;
    padding: 12px;
    transform: translate(-50%, calc(-100% + 28px));
    top:0;
  }
  .container__title--h3 {
    padding: 8px 16px 8px 22px;
    font-size: 1.25rem;/* 20px */
    letter-spacing: 0.6px;
  }
  .caution + .container__title--h3 {
    margin-top: 40px;
  }
  .column-2 + .why__column-image{
    margin-top: 24px;
  }
  .column-2 + .container__title--h3{
    margin-top: 40px;
  }
  .container__title--h3::before {
    width: 6px;
  }
  .container__title-lead {
    margin-top: 10px;
    font-size: 1rem;/* 16px */
    letter-spacing: 0.48px;
  }
  .sub-title-contents{
    flex-direction: column-reverse;
    gap: 16px;
    margin-bottom: 20px;
  }
  .sub-title-contents .contents-text{
    font-size: 1.125rem;/* 18px */
    text-align: center;
  }
  .sub-title-contents .contents-image {
    max-width: 240px;
    width: 240px;
  }
  .sub-title-contents .container__title-lead{
    text-align: left;
    font-size: 1rem;/* 16px */
  }
}

/* text */
.contents-text {
  font-size: 1.125rem;/* 18px */
  line-height: 1.8;
  letter-spacing: 0.54px;
}
.contents-text.img-caption{
  margin-top: 8px;
  font-size: 1rem;/* 16px */
}
.container__title--h3  + .contents-text {
  margin-top: 16px;
}
.step-list + .contents-text {
  margin-top: 40px;
}
.contents-text  + .contents-text {
  margin-top: 1em;
}
.contents-text + .contents-text.mT32{
  margin-top: 32px;
}
.container-arrow {
  text-align: center;
  max-width: 1164px;
  margin: -1px auto 0;
  min-height: 168px;
  padding: 0;
  background-color: var(--color-mono50);
  border-radius: 0;
  clip-path: path("M0 0H1164C1164 15.96 1153.19 29.89 1137.72 33.84L645.14 159.84C603.71 170.44 560.28 170.44 518.86 159.84L26.28 33.84C10.81 29.89 0 15.96 0 0Z");
}
.container-arrow__text {
  display: inline;
  font-size: 1.5rem;
  font-weight: bold;
  line-height: 2;
  letter-spacing: 0.72px;
  text-align: center;
  position: relative;
}
@media screen and (max-width: 767px) {
  .contents-text {
    font-size: 1rem;/* 16px */
    line-height: 1.8;
    letter-spacing: 0.38px;
  }
  .container-arrow {
    min-height: auto;
    margin-top: -20px;
    padding: 0 8px 16px;
    clip-path: none;
    position: relative;
  }
  .container-arrow::after {
    content: "";
    width: 100%;
    height: 49px;
    background-color: #FFFDF7;
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='335' height='49' viewBox='0 0 335 49' fill='none' preserveAspectRatio='none'%3E%3Cpath d='M0 0H335C335 4.5933 331.889 8.60236 327.437 9.73918L185.672 46.0021C173.748 49.0527 161.249 49.0527 149.328 46.0021L7.5634 9.73918C3.11113 8.60236 0 4.5933 0 0Z' fill='black'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='335' height='49' viewBox='0 0 335 49' fill='none' preserveAspectRatio='none'%3E%3Cpath d='M0 0H335C335 4.5933 331.889 8.60236 327.437 9.73918L185.672 46.0021C173.748 49.0527 161.249 49.0527 149.328 46.0021L7.5634 9.73918C3.11113 8.60236 0 4.5933 0 0Z' fill='black'/%3E%3C/svg%3E");
    -webkit-mask-size: 100% 100%;
    mask-size: 100% 100%;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    position: absolute;
    bottom: -48px;
    left: 0;
  }
  .container-arrow__text {
    font-size: 1.125rem;/* 18px */
    letter-spacing: 0.54px;
    line-height: 1.8;
  }
  .container .sub-title {
    font-size: 1.125rem;/* 18px */
    margin-bottom: 16px;
  }
}

/* 2カラム */
.column-2 {
  gap: 32px;
}
.contents-text + .column-2 {
  margin-top: 56px;
}
.container__title--h3 + .column-2 {
  margin-top: 56px;
}
.container__title--h3 + .preparation__caution{
  margin-top: 80px;
}
.more .container__title--h3 + .column-2 {
  margin-top: 40px;
}
.more .more-experiment{
  margin-top: 96px;
}
.more-experiment .more-experiment__title{
  text-align: center;
  margin: 0 0 40px;
}
.more-experiment .contents-text__marker{
  font-size: 1.75rem;
  font-weight: bold;
}
@media screen and (max-width: 767px) {
  .column-2 {
    gap: 20px;
  }
  .column-2--sp-reverse {
    flex-direction: column-reverse;
  }
  .contents-text + .column-2 {
    margin-top: 24px;
  }
  .container__title--h3 + .column-2 {
    margin-top: 24px;
  }
  .container__title--h3 + .preparation__caution{
    margin-top: 40px;
  }
  .more .container__title--h3 + .column-2 {
    margin-top: 0;
  }
  .more .more-experiment{
    margin-top: 40px;
  }
  .more-experiment .more-experiment__title{
    margin: 0 0 20px;
  }
  .more-experiment .contents-text__marker{
    font-size: 1.125rem;
  }
}


/* 画像 */
.contents-image {
  font-size: 0;
  text-align: center;
}
.contents-image.mT8,
.contents-image + .contents-image {
  margin-top: 8px;
}
.contents-image__img {
  border-radius: 12px;
}
.contents-image__border{
  border: 1px solid var(--color-mono200);
  padding: 16px;
  border-radius: 10px;
  margin: 18px 0 32px;
}

@media screen and (max-width: 767px) {
  .contents-image + .contents-image {
    margin-top: 4px;
  }
  .contents-image__img {
    border-radius: 8px;
  }
  .contents-image.sp-mT20{
    margin-top: 20px;
  }
}


/* リスト（数字） */
.num-list__item {
  display: list-item;
  margin-top: 8px;
  padding-left: 30px;
  font-size: 1.125rem;/* 18px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.54px;
  position: relative;
}
.num-list__item:first-of-type {
  margin-top: 0;
}
.num-list__item::before {
  content: counter(list-item);
  display: flex;
  justify-content: center;
  align-items: center;
  width: 22px;
  height: 22px;
  padding-bottom: 2px;
  background-color: var(--color-research-blue);
  border-radius: 9999px;
  color: var(--color-mono0);
  box-sizing: border-box;
  font-size: 1rem;/* 16px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.48px;
  position: absolute;
  top: 3px;
  left: 0;
}
.num-list__check {
  margin-top: 4px;
  padding-left: 21px;
  font-size: 1rem;/* 16px */
  font-weight: normal;
  line-height: 1.8;
  letter-spacing: 0.48px;
  position: relative;
}
.num-list__check::before {
  content: "";
  width: 17px;
  height: 17px;
  background: var(--color-orange500) url(/kids/research/common/img/icon_check.svg) no-repeat center;
  border-radius: 9999px;
  position: absolute;
  top: calc((1em * 1.8) / 2);
  left: 0;
  transform: translateY(-50%);
}
.num-list__note{
  font-size: 0.875rem;
  font-weight: normal;
  line-height: 1.8;
  margin: 4px 0 0;
}
.num-list__item .question_link{
  position: absolute;
  display: inline-block;
  margin: -3px 0 0 10px;
}
@media screen and (max-width: 767px) {
  .num-list__item {
    padding-left: 23px;
    font-size: 1rem;/* 16px */
    letter-spacing: 0.48px;
  }
  .num-list__item::before {
    width: 19px;
    height: 19px;
    font-size: 0.875rem;/* 14px */
    letter-spacing: 0.42px;
  }
  .num-list__check {
    margin-top: 2px;
    padding-left: 17px;
    font-size: 0.875rem;/* 14px */
    letter-spacing: 0.42px;
  }
  .num-list__check::before {
    width: 14px;
    height: 14px;
    background-size: 12.6px auto;
  }
  .num-list__item .question_link{
    width: 24px;
    height: 20px;
    margin-top: 5px;
  }
}

/* 注意 */
.caution {
  padding: 20px 32px;
  border-radius: var(--20, 20px);
  border: 4px dotted var(--color-alert);
}
.column-2 + .caution {
  margin-top: 36px;
}
.caution__title {
  padding-left: 54px;
  font-size: 0;
  position: relative;
}
.caution__title::before {
  content: "";
  display: inline-block;
  width: 44px;
  height: 44px;
  background: url(/kids/research/common/img/icon_alert.svg) no-repeat center / contain;
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}
.caution__list {
  margin-top: 16px;
}
.caution__list-item {
  padding-left: 26px;
  font-size: 1.125rem;/* 18px */
  line-height: 1.8;
  letter-spacing: 0.54px;
  position: relative;
}
.caution__list-item::before {
  content: "";
  width: 5px;
  height: 5px;
  background-color: var(--color-blue950);
  border-radius: 9999px;
  position: absolute;
  top: calc((1em * 1.8) / 2);
  left: 11px;
  transform: translateY(-50%);
}
@media screen and (max-width: 767px) {
  .caution {
    padding: 12px 16px 16px;
  }
  .column-2 + .caution {
    margin-top: 24px;
  }
  .caution__title {
    padding-left: 44px;
  }
  .caution__title::before {
    width: 40px;
    height: 40px;
  }
  .caution__title-img {
    width: 128px;
  }
  .caution__list {
    margin-top: 8px;
  }
  .caution__list-item {
    padding-left: 22px;
    font-size: 1rem;/* 16px */
    letter-spacing: 0.48px;
  }
  .caution__list-item::before{
    left: 7px;
  }
}

/* step */
.step-list {
  margin-top: 80px;
}
.step-list__item {
  border-top: 2px solid var(--color-mono200);
}
.kirakira-box + .step-list,
.container__title--h3 + .step-list,
.step-list__item + .step-list__item {
  margin-top: 40px;
}
.container__title--h3 + .step-list{
  margin-top: 56px;
}
.more .container__title--h3 + .step-list{
  margin-top: 40px;
}
.kirakira-box + .contents-text,
.more .step-list__item + .step-list__item {
  margin-top: 32px;
}
.contents-text + .step-list{
  margin-top: 16px;
}
.contents-text + .step-list.mt-wide{
  margin-top: 40px;
}
.step-list__num {
  display: inline-block;
  margin-top: -2px;
  padding: 3px 10px 12px;
  background-color: var(--color-research-blue);
  border-radius: 2px;
  color: var(--color-mono0);
  font-size: 1.625rem;/* 26px */
  font-weight: bold;
  line-height: 1;
  letter-spacing: 0.78px;
  text-align: center;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='58' viewBox='0 0 56 58' fill='none'%3E%3Cpath d='M0 2C0 0.895432 0.895431 0 2 0H54C55.1046 0 56 0.895431 56 2V55.4384C56 56.7396 54.7772 57.6943 53.5149 57.3787L28.4851 51.1213C28.1666 51.0416 27.8334 51.0416 27.5149 51.1213L2.48507 57.3787C1.22278 57.6943 0 56.7396 0 55.4384V2Z' fill='black'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='58' viewBox='0 0 56 58' fill='none'%3E%3Cpath d='M0 2C0 0.895432 0.895431 0 2 0H54C55.1046 0 56 0.895431 56 2V55.4384C56 56.7396 54.7772 57.6943 53.5149 57.3787L28.4851 51.1213C28.1666 51.0416 27.8334 51.0416 27.5149 51.1213L2.48507 57.3787C1.22278 57.6943 0 56.7396 0 55.4384V2Z' fill='black'/%3E%3C/svg%3E");
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: contain;
  mask-size: contain;
}
.step-list__num-small {
  display: block;
  font-size: 0.875rem;/* 14px */
  font-weight: normal;
  line-height: 1.2;
  letter-spacing: 0.42px;
}
.step-list__contents {
  margin-top: 9px;
}
.research-step__explanation{
  padding-top: 32px;
  font-size: 1.125rem;/* 18px */
  line-height: 1.8;
}
.container__title--h3 + .research-step__explanation{
  padding-top: 56px;
}
.research-step__explanation + .why__column-image{
  margin-top: 32px;
}
.research-step__explanation-txt + .research-step__explanation-txt{
  margin-top: 32px;
}
.contents-text + .arrow__column-2{
  margin-top: 32px;
}
@media screen and (max-width: 767px) {
  .step-list {
    margin-top: 40px;
  }
  .contents-text + .step-list.mt-wide{
    margin-top: 20px;
  }
  .kirakira-box + .step-list {
    margin-top: 20px;
  }
  .container__title--h3 + .step-list {
    margin-top: 20px;
  }
  .more .container__title--h3{
    margin-bottom: 20px;
  }
  .more .container__title--h3 + .step-list {
    margin-top: 20px;
  }
  .kirakira-box + .contents-text {
    margin-top: 16px;
  }
  .step-list__num {
    padding: 3px 6.5px 12px;
    font-size: 1.25rem;/* 20px */
    letter-spacing: 0.6px;
  }
  .step-list__num-small {
    font-size: 0.75rem;/* 12px */
    letter-spacing: 0.36px;
  }
  .research-step__explanation{
    padding-top: 16px;
    font-size: 1rem;/* 16px */
  }
  .research-step__explanation + .why__column-image{
    margin-top: 24px;
  }
  .contents-text + .arrow__column-2 {
    margin-top: 18px;
  }
}

/* point-box */
.point-box {
  padding: 24px 24px 20px 24px;
  border: 1.5px solid var(--color-orange500);
  border-radius: 8px;
  position: relative;
}
.point-box .column-2{
  gap: 10px;
}
.point-box .column-2 .contents-text{
  width: calc(100% - 130px);
}
.point-box .column-2 .contents-image{
  width: 120px;
}
.contents-text + .point-box {
  margin-top: 32px;
}
.point-box__title {
  padding: 0 8px;
  background-color: var(--color-mono50);
  position: absolute;
  top: -12px;
  left: 12px;
}
.point-box__title-text {
  display: block;
  padding-left: 29px;
  font-size: 1.125rem;/* 18px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.54px;
  position: relative;
}
.point-box__title-text::before {
  content: "";
  width: 21px;
  height: 21px;
  background: var(--color-orange500) url(/kids/research/common/img/icon_check.svg) no-repeat center / 19px 19px;
  border-radius: 9999px;
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}
@media screen and (max-width: 767px) {
  .point-box {
    padding: 16px 16px 12px;
  }
  .contents-text + .point-box {
    margin-top: 24px;
  }
  .more .contents-text + .point-box {
      margin-top: 18px;
  }
  .point-box__title {
    padding: 0 4px;
  }
  .point-box__title-text {
    padding-left: 28px;
    font-size: 1rem;/* 16px */
    letter-spacing: 0.48px;
  }
  .point-box__title-text::before {
    width: 20px;
    height: 20px;
    background-size: 15px auto;
  }
  .point-box .column-2 .contents-text{
    width: 100%;
  }
  .point-box .column-2 .contents-image{
    display:flex;
    align-items: center;
    margin: auto;
  }

}

/* button */
.contents-text + .research-button {
  margin-top: 32px;
}
.research-button {
  text-align: center;
}
.research-button__link {
  display: inline-flex;
  align-items: center;
  min-width: 325px;
  min-height: 72px;
  padding: 6px 54px 6px 82px;
  border-radius: 9999px;
  border: 3px solid var(--color-orange600);
  background: var(--color-mono50);
  box-shadow: 0 0 8px 0 rgba(0, 0, 0, 0.12);
  color: var(--color-blue950);
  font-size: 1.125rem;/* 18px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.54px;
  text-align: center;
  transition: 0.2s;
  position: relative;
}
.research-button__link--w100 {
  width: 100%;
  justify-content: center;
}
.research-button__link::before {
  content: "";
  top: 50%;
  transform: translateY(-50%);
}
.research-button__link--pencil::before {
  width: 55px;
  height: 35px;
  background: url(/kids/research/common/img/icon_button_pencil.svg) no-repeat center / contain;
  position: absolute;
  left: 9px;
}
.research-button__link--hatena {
  padding-left: 85px;
}
.research-button__link--hatena::before {
  width: 87px;
  height: 80px;
  background: url(/kids/research/common/img/icon_button_hatena.svg) no-repeat center / contain;
  position: absolute;
  left: -3px;
}
.research-button__link::after {
  content: "";
  width: 32px;
  height: 32px;
  background: var(--color-orange600) url(/common/img/icon_arrow_right_01.svg) no-repeat center / 6px auto;
  border-radius: 9999px;
  position: absolute;
  top: 50%;
  right: 13px;
  transform: translateY(-50%);
  transition: 0.2s;
}

@media (hover: hover) {
  .research-button__link:hover {
    background-color: var(--color-mono100);
    text-decoration: underline;
  }
  .research-button__link:hover::after {
    transform: translateY(-50%) scale(1.125);
  }
  .research-button__link--small:hover::after {
    transform: translateY(-50%) scale(1.2);
  }
}

@media screen and (max-width: 767px) {
  .contents-text + .research-button {
    margin-top: 24px;
  }
  .research-button__link {
    width: 100%;
    max-width: 303px;
    min-width: auto;
    min-height: 64px;
    padding: 3px 48px 3px 65px;
    font-size: 1rem;/* 16px */
    letter-spacing: 0.48px;
  }
  .research-button__link::after {
    width: 24px;
    height: 24px;
    background-size: 4.543px auto;
  }
  .research-button__link--hatena::before {
    width: 57px;
    height: 52px;
  }
  .research-button__link--pencil::before {
    width: 49px;
    height: 31px;
    left: 12px;
  }
}

/* kirakira-box */
.kirakira-box {
  padding: 16px 24px 20px;
  background-color: #FFF5C2;
  background-image: linear-gradient(90deg, var(--color-mono0) 1px, transparent 1px), linear-gradient(var(--color-mono0) 1px, transparent 1px);
  background-position: 0 16px;
  background-size: 32px 32px;
  border-radius: 8px;
  position: relative;
}
.contents-text + .kirakira-box {
  margin-top: 32px;
}
.container__title--h3 + .kirakira-box {
  margin-top: 40px;
}
.column-2 + .kirakira-box {
  margin-top: 50px;
}
.point-box + .kirakira-box,
.point-box + .research-button,
.kirakira-box + .point-box,
.kirakira-box + .kirakira-box,
.kirakira-box + .research-button{
  margin-top: 32px;
}
.point-box + .kirakira-box--wide{
  margin-top: 56px;
}
.kirakira-box::before {
  content: "";
  width: 27px;
  height: 35px;
  background: url(/kids/research/common/img/icon_kirakira.svg) no-repeat center / contain;
  position: absolute;
  left: -6px;
  top: -10px;
}
.kirakira-box--wide {
  padding: 20px 40px;
  border-radius: 12px;
}
.kirakira-box--wide::before {
  width: 37px;
  height: 47px;
  top: -14px;
  left: -5px;
}
.kirakira-box--wide .contents-link{
  margin-top: 20px;
}
@media screen and (max-width: 767px) {
  .kirakira-box {
    padding: 12px 16px;
    background-size: 19px 19px;
  }
  .point-box + .kirakira-box {
      margin-top: 24px;
  }
  .contents-text + .kirakira-box {
    margin-top: 16px;
  }
  .column-2 + .kirakira-box {
    margin-top: 24px;
  }
  .container__title--h3 + .kirakira-box {
    margin-top: 20px;
  }
  .kirakira-box--wide {
    padding: 12px 16px;
    border-radius: 8px;
  }
  .kirakira-box--wide::before {
    width: 27px;
    height: 35px;
    left: -6px;
    top: -10px;
  }
  .research-secret__item-title + .kirakira-box--wide {
    margin-top: 16px;
  }
}


/* =====================================
  header
===================================== */
#research-header {
  padding: 14px 0;
  background-color: #FFF8ED;
  border-radius: 0 0 60px 60px;
  box-sizing: border-box;
}
.research-header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1164px;
  margin: 0 auto;
}
.research-header__logo img {
  display: block;
}
.research-header__logo-link {
  display: block;
}
.research-header__link {
  text-align: right;
}
.research-header__link a {
  display: block;
}


@media screen and (max-width: 767px) {
  #research-header {
    padding: 11px 20px 15px;
    border-radius: 0 0 20px 20px;
    position: relative;
    z-index: 2;
  }
  .research-header__inner {
    gap: 21px;
  }
  .research-header__logo {
    width: 168px;
    flex-shrink: 0;
  }
  .research-header__link {
    flex-shrink: 1;
  }
}

/* =====================================
  hero
===================================== */
.hero {
  position: relative;
}
.hero::before {
  content: "";
  width: 100vw;
  height: 440px;
  background-color: #1EBCDB;
  background-image: linear-gradient(90deg, #61D0E6 1px, transparent 1px), linear-gradient(#61D0E6 1px, transparent 1px);
  background-position: 0 16px;
  background-size: 32px 32px;
  border-bottom-left-radius: 160px;
  position: absolute;
  top: 0;
  left: calc(50% - -58px);
}
.hero__inner {
  display: flex;
  justify-content: space-between;
  max-width: 1164px;
  margin: 0 auto;
  padding: 72px 0 56px;
  position: relative;
  z-index: 1;
}
.hero__left-column {
  max-width: 560px;
}
.hero__title {
  margin-top: 24px;
}
.hero__tags {
  display: flex;
  margin-top: 50px;
}
.hero__tags-item {
  padding: 2px 8px 0;
  background-color: #E8EAEB;
  border-radius: 4px;
  font-size: 0.875rem;/* 14px */
  line-height: 1.5;
  letter-spacing: 0.42px;
}
.hero__text {
  margin-top: 12px;
  font-size: 1.125rem;/* 18px */
  font-weight: bold;
  line-height: 1.8;
  letter-spacing: 0.54px;
}
.hero__image {
  max-width: 420px;
  font-size: 0;
}
.title-line-1 .hero__left-column {
  padding-top: 48px;
}
.title-line-2 .hero__image {
  padding-top: 28px;
}
.title-line-2 .hero__image.pT0 {
  padding-top: 0;
}
@media screen and (max-width: 767px) {
  .hero::before {
    height: 200px;
    border-bottom-left-radius: 60px;
    left: 20px;
    top: -12px;
    background-size: 19px 19px;
  }
  .hero__inner {
    flex-direction: column-reverse;
    align-items: flex-end;
    padding: 24px 20px 0;
  }
  .hero__image {
    width: 100%;
    text-align: right;
  }
  .title-line-2 .hero__image {
    padding-top: 0;
  }
  .hero__image-img {
    width: 50.933vw;
  }
  .hero__left-column {
    max-width: 100%;
    margin-top: -4.8vw;
  }
  .hero__level {
    width: 33.867vw;
  }
  .hero__title {
    margin-top: 28px;
  }
  .hero__title img{
    width: auto;
    display: block;
    object-fit: contain;
  }
  .title-line-1 .hero__left-column {
    padding-top: 0;
  }
  .title-line-2 .hero__title img{
    max-height: 152px;
  }
  .title-line-1 .hero__title img{
    max-height: 92px;
  }
  .hero__tags {
    margin-top: 24px;
  }
  .hero__text {
    font-size: 1rem;/* 16px */
    letter-spacing: 0.48px;
  }
}

/* =====================================
  scroll-point
===================================== */
.scroll-point {
  display: flex;
  justify-content: center;
  margin-top: -9px;
  position: sticky;
  top: 0;
  left: 0;
  z-index: 10;
}
.scroll-point__inner {
  display: flex;
  width: 100%;
  max-width: 1164px;
  overflow: hidden;
  border-radius: 20px;
  background-color: var(--color-mono50);
  box-shadow: 0 0 12px 0 rgba(0, 0, 0, 0.15);       
}
.scroll-point--sticky .scroll-point__inner {
  border-radius: 0 0 20px 20px;
}
.scroll-point__title {
  display: flex;
  align-items: center;
  min-height: 98px;
  padding: 12px 32px;
  background: var(--color-research-blue);
  border-radius: 20px;
  color: var(--color-mono0);
  font-size: 1.25rem;/* 20px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.6px;
}
.scroll-point--sticky .scroll-point__title {
  border-radius: 0 0 20px 20px;
}
.scroll-point__list-wrap {
  flex: 1;
  padding-left: 20px;
  overflow-x: auto;
}
.scroll-point__list {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  width: 100%;
  padding: 20px 32px 24px 0;
  position: relative;
}
.scroll-point__list::before {
  content: "";
  width: calc(100% - 152px);
  height: 2px;
  background: url(/kids/research/common/img/img_dashed.svg) repeat-x left center;
  background-size: 10px 2px;
  position: absolute;
  left: 60px;
  bottom: 34px;
}
.scroll-point__list-item {
  min-width: 120px;
  position: relative;
}

.scroll-point__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  height: 100%;
  color: var(--color-blue950);
  font-size: 1rem;/* 16px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.48px;
  position: relative;
}
.scroll-point__link::after {
  content: "";
  width: 22px;
  height: 22px;
  border: 6px solid var(--color-research-blue);
  background-color: var(--color-mono50);
  border-radius: 9999px;
  box-sizing: border-box;
  transition: 0.2s
}
.scroll-point__link--active::after {
  border: none;
  background-color: var(--color-blue700);
  transform: scale(1.364);
}
.scroll-point__link-inner {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  flex-grow: 1;
}
.scroll-point__sp-text {
  display: none;
}

@media screen and (max-width: 1249px) {
  .scroll-point__list {
    width: 915px;
  }
}

@media screen and (max-width: 767px) {
  .scroll-point {
    margin-top: 64px;
    padding: 0 20px
  }
  .scroll-point__inner {
    display: block;
    width: 100%;
    background: none;
    box-shadow: none;
    overflow: visible;
    position: relative;
  }
  .scroll-point--sticky .scroll-point__inner {
    border-radius: 0 0 20px 20px;
  }
  .scroll-point__title {
    display: inline-block;
    min-height: auto;
    padding: 4px 16px;
    border-radius: 6px 6px 0 0;
    font-size: 1rem;/* 16px */
    letter-spacing: 0.48px;
    position: absolute;
    --title-height: 33px;
    top: 0;
    left: 0;
    transform: translateY(-100%);
  }
  .scroll-point--sticky .scroll-point__title {
    border-radius: 0;
  }
  .scroll-point__list-wrap {
    padding: 0 0 39px 0;
    background-color: var(--color-mono50);
    border-radius: 0 20px 20px 20px;
    box-shadow: 0 0 12px 0 rgba(0, 0, 0, 0.15);
  }
  .scroll-point--sticky .scroll-point__list-wrap {border-top-right-radius: 0;}
  .scroll-point__list {
    gap: 0;
    width: fit-content;
    padding: 16px 0 12px;
  }
  .scroll-point__list::before {
    width: calc(100% - 120px);
    bottom: 20px;
  }
  .scroll-point__link {
    gap: 4px;
    font-size: 0.875rem;/* 14px */
    letter-spacing: 0.42px;
  }
  .scroll-point__link::after {
    width: 18px;
    height: 18px;
  }
  .scroll-point__sp-text {
    display: block;
    margin: 0 0 0 24px;
    padding: 5.5px 32px;
    font-size: 0.8125rem;/* 13px */
    line-height: 1;
    letter-spacing: 0.39px;
    position: absolute;
    left: 0;
    bottom: 12px;
  }
  .scroll-point__sp-text::before {
    content: "";
    width: 25px;
    height: 24px;
    background: url(/kids/research/common/img/icon_hand.svg) no-repeat center / contain;
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
  }
}


/* =====================================
  preparation
===================================== */
.preparation {
  margin-top: -40px;
  padding: 170px 0 160px;
  background-color: #FAF2E6;
  background-image: linear-gradient(90deg, #FDFBF7 1px, transparent 1px), linear-gradient(#FDFBF7 1px, transparent 1px);
  background-position: 0 0;
  background-size: 32px 32px;
  border-top-right-radius: 160px;
}
.preparation__column{
  gap:16px;
  margin-top: 20px;
  align-items: center;
}
.preparation__column .contents-image{
  width: 100px;
}
.preparation__column .contents-text{
  width: calc(100% - 116px);
}
.preparation__caution .note {
  margin-top: 8px;
  line-height: 1.8;
}
.preparation-contents{
  margin-top: 80px;
}
.preparation-contents.--bg-beige {
  background-color: var(--color-mono100);
  border-radius: 20px;
  padding: 32px;
}
.preparation-inner{
  margin-top: 30px;
}
.preparation-inner:first-child{
  margin-top: 0;
}


@media screen and (max-width: 767px) {
  .preparation {
    margin-top: -16px;
    padding: 124px 20px 58px;
    border-top-right-radius: 60px;
    background-size: 19px 19px;
  }
  .preparation__title-img {
    width: 194px;
  }
  .preparation__column{
    flex-direction: row;
  }

  .preparation-contents{
    margin-top: 40px;
  }

  .preparation-contents.--bg-beige {
    border-radius: 12px;
    padding: 16px;
  }

  .preparation-inner{
    margin-top: 18px;
  }

  .preparation-inner:first-child{
    margin-top: 0;
  }
  .preparation__caution .note {
    font-size: 0.875rem;/* 14px */
  }
}

/* =====================================
  experiment
===================================== */
.bg-blue__wrap{
  background-color: #1EBCDB;
  background-image: linear-gradient(90deg, #61D0E6 1px, transparent 1px), linear-gradient(#61D0E6 1px, transparent 1px);
  background-position: 0 top;
  background-size: 32px 32px;
}
.experiment {
  padding: 110px 0 90px;
  position: relative;
}
.experiment .container{
  padding-bottom: 74px;
}
.experiment:has(.tab-menu) {
  padding-top: 64px;
}
.experiment::before {
  content: "";
  position: absolute;
  top: -86px;
  left: 0;
  width: 100%;
  height: 86px;
  background-color: #1EBCDB;
  background-image: linear-gradient(90deg, #61D0E6 1px, transparent 1px), linear-gradient(#61D0E6 1px, transparent 1px);
  background-position: 0 22px;
  background-size: 32px 32px;
  -webkit-mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 86" preserveAspectRatio="none"><path d="M0 85.9999L1440 86L1440 28.007C1440 28.007 1211.87 84.7837 1063.62 85.9387C837.603 87.6998 688.243 6.65876 462.282 0.300452C267.998 -5.16651 0 65.7884 0 65.7884L0 85.9999Z" fill="black"/></svg>');
  mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 86" preserveAspectRatio="none"><path d="M0 85.9999L1440 86L1440 28.007C1440 28.007 1211.87 84.7837 1063.62 85.9387C837.603 87.6998 688.243 6.65876 462.282 0.300452C267.998 -5.16651 0 65.7884 0 65.7884L0 85.9999Z" fill="black"/></svg>');
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}
.experiment-contents + .experiment-contents{
  margin-top: 80px;
}
.experiment-inner + .experiment-inner{
  margin-top: 56px;
}
.column-2 + .experiment-inner{
  margin-top: 56px;
}
.container__title--h3 + .experiment-inner{
  margin-top: 56px;
}
.experiment-inner .sub-title {
  font-size: 1.25rem;/* 20px */
  font-weight: bold;
  margin: 0 0 16px 0;
}
@media screen and (max-width: 767px) {
  .bg-blue__wrap{
    background-size: 19px 19px;
  }
  .experiment {
    padding: 88px 20px 112px;
  }
  .experiment .container{
    padding-bottom: 38px;
  }
  .experiment:has(.tab-menu) {
    padding-top: 48px;
  }
  .experiment::before {
    top: -21.576px;
    height: 21.576px;
    background-size: 19px 19px;
  }
  .experiment__title-img {
    width: 172px;
  }
  .experiment-contents + .experiment-contents{
    margin-top: 40px;
  }
  .experiment-inner + .experiment-inner {
    margin-top: 40px;
  }
  .column-2 + .experiment-inner{
    margin-top: 40px;
  }
  .container__title--h3 + .experiment-inner{
    margin-top: 44px;
  }
  .experiment-inner .sub-title {
    font-size: 1.125rem;/* 18px */
    font-weight: bold;
    margin-bottom: 16px;
  }
}


/* =====================================
  why
===================================== */
.why{
  padding: 0 0 160px;
}
.container__title--h3 + .contents-text--why {
  margin-top: 56px;
}
.why .container__title{
  padding-top: 24px;
}
.contents-text + .why__column-image{
  margin-top: 16px;
}
.research-step__explanation  + .why__column-image.mt-wide,
.contents-text + .why__column-image.mt-wide{
  margin-top: 50px;
}
.why__column-image.--flex-start{
  align-items: flex-start;
}
.why__column-image-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.why__column-image-item > .h4em {
  min-height: 4em;
}
.arrow__column-2{
  gap: 92px;
  position: relative;
}
.arrow__column-2::after,
.arrow__column-text .arrow__text::after{
  content: "";
  width: 28px;
  height: 28px;
  background: url(/kids/research/common/img/icon_arrow_right.svg) no-repeat center / contain;
  position: absolute;
  bottom: calc(min(10vw, 125px) - 14px);
  left: calc(50% - 14px);
}
.arrow__column-2.--arrow-middle::after{
  bottom: calc(50% - 14px);
}
.arrow__column-text{
  justify-content: space-between;
  gap: 24px;
}
.arrow__column-text .arrow__text{
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  font-weight: bold;
  font-size: 1.125rem;/* 18px */
}
.arrow__column-text .arrow__text::after{
  display: block;
  position: static;
  margin-top: 8px;
}
.secret-contents{
  margin-top: 56px;
}
.secret-contents.--bg-beige{
  background-color: var(--color-mono100);
  border-radius: 20px;
  padding: 40px;
}
.secret-contents.--bg-beige .column-2{
  margin: 16px 0 0;
}
.secret-contents.--bg-beige + .secret-contents.--bg-beige{
  margin-top: 16px;
}
.secret-inner + .secret-inner,
.secret-inner + .point-box{
  margin-top: 56px;
}
.research-secret__item-title{
  font-size: 1.125rem;/* 18px */
  font-weight: bold;
  margin: 0 0 16px;
  padding: 0 0 0 28px;
  position: relative;
}
.research-secret__item-title::before {
  content: "";
  width: 21px;
  height: 21px;
  background: var(--color-orange500) url(/kids/research/common/img/icon_check.svg) no-repeat center / 19px 19px;
  border-radius: 9999px;
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}
.secret-contents .research-secret__item-txt{
  font-size: 1.125rem;/* 18px */
  line-height: 1.8;
}
.secret-contents .note{
  margin-top: 16px;
}
.ruby-off .research-secret__item-title::before {
  top: 42%
}
.research-secret__item + .contents-text{
  margin-top: 32px;
}
@media screen and (max-width: 767px) {
  .why{
    padding: 0 20px 64px;
  }
  .why .container__title{
    padding-top: 14px;
  }
  .why__title-img {
    width: 236.25px;
  }
  .container__title--h3 + .contents-text--why {
    margin-top: 24px;
  }
  .contents-text + .why__column-image.mt-wide{
    margin-top: 24px;
  }
  .arrow__column-2{
    gap: 44px;
  }
  .arrow__column-2::after{
    display: none;
  }
  .arrow__column-2 .why__column-image-item{
    position: relative;
  }
  .arrow__column-text .arrow__text::after{
    transform: rotate(90deg);
    top: calc(100% + 8px);
    left: calc(50% - 14px);
  }
  .arrow__column-2::after{
    display: none;
  }
  .arrow__column-2 .why__column-image-item:first-child::after{
    content: "";
    width: 28px;
    height: 28px;
    background: url(/kids/research/common/img/icon_arrow_right.svg) no-repeat center / contain;
    position: absolute;
    transform: rotate(90deg);
    top: calc(100% + 8px);
    left: calc(50% - 14px);
  }
  .arrow__column-2.--arrow-middle::after{
    bottom: calc(50% - 14px);
  }
  .why__column-image-item > .h4em {
    min-height: 1px;
    font-size: 0.875rem;/* 14px */
    line-height: 1.8;
  }
  .arrow__column-text{
    gap: 24px;
  }
  .arrow__column-text .arrow__text{
    font-size: 1rem;/* 16px */
  }
  .arrow__column-text .arrow__text::after{
    display: block;
    position: static;
    margin-top: 8px;
  }
  .secret-contents{
    margin-top: 24px;
  }
  .research-secret__item-title{
    font-size: 1rem;/* 16px */
    margin-bottom: 4px;
  }
  .research-secret__item-title::before {
    top: 18px
  }
  .ruby-off .research-secret__item-title::before{
    top: 14px
  }
  .secret-contents .research-secret__item-txt{
    font-size: 1rem;/* 16px */
  }
  .secret-contents.--bg-beige{
    border-radius: 16px;
    padding: 20px;
  }
  .research-secret__item + .contents-text{
    margin-top: 16px;
  }
}


/* =====================================
  summary
===================================== */
.summary {
  padding: 110px 0 120px;
  background-color: #FFE188;
  background-image:
    url(/kids/research/common/img/loop_02_pc.svg),
    linear-gradient(90deg, #FFEDB8 1px, transparent 1px),
    linear-gradient(#FFEDB8 1px, transparent 1px);
  background-position:
    left -28px bottom -109px,
    0 0,
    0 0;
  background-size:
    auto,
    32px 32px,
    32px 32px;
  background-repeat:
    no-repeat,
    repeat,
    repeat;
  border-bottom-left-radius: 160px;
  position: relative;
  z-index: 1;
}
.summary::before {
  content: "";
  position: absolute;
  top: -86px;
  left: 0;
  width: 100%;
  height: 86px;
  background-color: #FFE188;
  background-image: linear-gradient(90deg, #FFEDB8 1px, transparent 1px), linear-gradient(#FFEDB8 1px, transparent 1px);
  background-position: 0 22px;
  background-size: 32px 32px;
  -webkit-mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 86" preserveAspectRatio="none"><path d="M0 85.9999L1440 86L1440 28.007C1440 28.007 1211.87 84.7837 1063.62 85.9387C837.603 87.6998 688.243 6.65876 462.282 0.300452C267.998 -5.16651 0 65.7884 0 65.7884L0 85.9999Z" fill="black"/></svg>');
  mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 86" preserveAspectRatio="none"><path d="M0 85.9999L1440 86L1440 28.007C1440 28.007 1211.87 84.7837 1063.62 85.9387C837.603 87.6998 688.243 6.65876 462.282 0.300452C267.998 -5.16651 0 65.7884 0 65.7884L0 85.9999Z" fill="black"/></svg>');
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}
.summary::after {
  content: "";
  position: absolute;
top: 83px;
 left: calc(50% + 393px);
  width: 320px;
  height: 320px;
  background-image: url(/kids/research/common/img/loop_01_pc.svg);
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  pointer-events: none;
  z-index: -1;
}

.summary__text-area {
  gap: 48px;
}
.summary__text-area .contents-text{
  width: calc(100% - 248px);
}
.summary__text-area-image {
  min-width: 200px;
  width: 200px;
}
.summary__text-area-image img {
  width: 100%;
  height: auto;
}
.summary__kirakira-box {
  padding: 45px 24px 32px;
  border-radius: 80px 12px;
}
.summary__kirakira-box::before {
  width: 56px;
  height: 72px;
  left: 39px;
  top: -19px;
}
.summary__contents-text {
  font-size: 1.25rem;/* 20px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.6px;
  text-align: center;
}
@media screen and (max-width: 767px) {
  .summary {
    padding: 84px 20px 64px;
    border-bottom-left-radius: 60px;
    background-image:
      url(/kids/research/common/img/loop_01_sp.svg),
      url(/kids/research/common/img/loop_02_sp.svg),
      linear-gradient(90deg, #FFEDB8 1px, transparent 1px),
      linear-gradient(#FFEDB8 1px, transparent 1px);
    background-position: right -61.93px top 126.71px, left -170px bottom -29.229px, 0 0, 0 0;
    background-size: 258px auto, 421px auto, 19px 19px, 19px 19px;
    background-repeat: no-repeat, no-repeat, repeat, repeat;
  }
  .summary::before {
    top: -22px;
    height: 23px;
    background-size: 19px 19px;
  }
  .summary__text-area .contents-text{
    width: 100%;
  }
  .summary__text-area-image {
    width: 200px;
  }
  .summary__title-img {
    width: 199.333px;
  }
  .summary__title-img.--wide {
    width: 258px;
  }
  .summary__text-area {
      gap: 20px;
  }
  .summary__text-area-image {
    width: 200px;
    max-width: 100%;
    align-self: center;
  }
  .summary__kirakira-box {
    padding: 34px 16px;
    border-radius: 60px 12px;
  }
  .summary__kirakira-box::before {
    width: 27px;
    height: 35px;
    top: 0;
    left: 13px;
  }
  .summary__contents-text {
    font-size: 0.875rem;/* 14px */
    line-height: 1.72;
  }
}


/* =====================================
  more
===================================== */
.more {
  margin-top: -140px;
  padding: 286px 0 90px;
  background-color: #FAF2E6;
  background-image: linear-gradient(90deg, #FDFBF7 1px, transparent 1px), linear-gradient(#FDFBF7 1px, transparent 1px);
  background-position: 0 0;
  background-size: 32px 32px;
  border-radius: 0 0 160px 160px;
  position: relative;
}
.more.--with-wave-top{
  padding: 110px 0 160px;
  margin-top: 0;
  border-radius: 0;
}
.more.--with-wave-top::before {
  content: "";
  position: absolute;
  top: -86px;
  left: 0;
  width: 100%;
  height: 86px;
  background-color: #FAF2E6;
  background-image: linear-gradient(90deg, #FDFBF7 1px, transparent 1px), linear-gradient(#FDFBF7 1px, transparent 1px);
  background-position: 0 22px;
  background-size: 32px 32px;
  -webkit-mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 86" preserveAspectRatio="none"><path d="M0 85.9999L1440 86L1440 28.007C1440 28.007 1211.87 84.7837 1063.62 85.9387C837.603 87.6998 688.243 6.65876 462.282 0.300452C267.998 -5.16651 0 65.7884 0 65.7884L0 85.9999Z" fill="black"/></svg>');
  mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 86" preserveAspectRatio="none"><path d="M0 85.9999L1440 86L1440 28.007C1440 28.007 1211.87 84.7837 1063.62 85.9387C837.603 87.6998 688.243 6.65876 462.282 0.300452C267.998 -5.16651 0 65.7884 0 65.7884L0 85.9999Z" fill="black"/></svg>');
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}
.more-contents + .more-contents {
  margin-top: 96px;
}
.column-2 + .more-inner{
  margin-top: 40px;
}
.more-inner + .more-inner{
  margin-top: 80px;
}
@media screen and (max-width: 767px) {
  .more {
    margin-top: -60px;
    padding: 160px 20px 64px;
    border-radius:  0 0 60px 60px;
    background-size: 19px 19px;
  }
  .more.--with-wave-top{
    padding: 88px 20px 66px;
    margin-top: 0;
    border-radius: 0;
  }
  .more.--with-wave-top::before {
    top: -22px;
    height: 23px;
    background-size: 19px 19px;
  }
  .more-inner + .more-inner {
    margin-top: 36px;
  }
  .more-contents + .more-contents {
    margin-top: 36px;
  }
  .more__title-img {
    width: 174.667px;
  }
}


/* =====================================
  tab
===================================== */
.tab-menu {
  max-width: 1164px;
  margin: 0 auto;
  padding: 40px;
  border-radius: 60px;
  background-color: var(--color-mono100);
}
.tab-menu__text {
  font-size: 1.25rem;/* 20px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.6px;
  text-align: center;
}
.tab-menu__text-inner {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 40px;
  padding-left: 44px;
  position: relative;
  z-index: 1;
}
.tab-menu__text-inner::before {
  content: "";
  width: 40px;
  height: 40px;
  background: url(/kids/research/common/img/icon_tap.svg) no-repeat center /contain;
  position: absolute;
  top: 0;
  left: 0;
}
.tab-menu__text-inner::after {
  content: "";
  width: calc(100% + 15px);
  height: 12px;
  background-color: var(--color-orange200);
  border-radius: 9999px;
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  z-index: -1;
}

.tab-menu__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 840px;
  margin: 32px auto 0;
}
.tab-menu__button {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 88px;
  min-width: calc(50% - 4px);
  border-radius: 12px;
  border: 2px solid var(--color-mono200);
  background: var(--color-mono50);
  font-size: 1.25rem;/* 20px */
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.6px;
  transition: 0.2s;
  padding-right: 30px;
  position: relative;
}
.tab-menu__button::after {
  content: "";
  width: 9px;
  height: 9px;
  position: absolute;
  right: 20px;
  border-right: 1px solid #083044;
  border-bottom: 1px solid #083044;
  transform: rotate(45deg);
}
.tab-menu__button--active {
  border-color: #009EBE;
  background-color: #009EBE;
  color: var(--color-mono0);
  padding:0;
  pointer-events: none;
}
.tab-menu__button--active::after {
  display: none;
}
.tab-menu.--btm{
  margin-top: 40px;
}
.tab-menu.--btm .tab-menu__button::after {
  transform: rotate(-135deg);
}

.tab-content {
  margin-top: 86px;
}
.why.tab-content {
  margin-top: 0;
}
.tab-content__item {
  display: none;
}
.tab-content__item--active {
  display: block;
}

@media screen and (max-width: 767px) {
  .tab-menu {
    max-width: 100%;
    padding: 24px 16px;
    border-radius: 20px;
  }
  .tab-menu__text {
    font-size: 1rem;/* 16px */
    line-height: 1.8;
    letter-spacing: 0;
  }
  .tab-menu__text-inner {
    min-height: 20px;
    padding-left: 20px;
  }
  .tab-menu__text-inner::before {
    width: 26px;
    height: 26px;
    left: -8px;
    top: 2px;
  }

  .tab-menu__nav {
    flex-direction: column;
    gap: 4px;
    margin: 16px auto 0;
  }
  .tab-menu__button {
    min-height: 64px;
    min-width: 100%;
    font-size: 1rem;/* 16px */
    letter-spacing: 0.3px;
    transition: 0.2s;
    padding-right: 18px;
  }
  .tab-menu__button::after {
    width: 7px;
    height: 7px;
    right: 10px;
  }
  .tab-content {
    margin-top: 78px;
  }
  .why.tab-content {
    margin-top: 0;
  }
  .tab-content__item {
    display: none;
  }
  .tab-content__item--active {
    display: block;
  }
}

/* ページ固有 */

.mb8 {
  margin-bottom: 8px;
}

.step-list__num-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
}
.step-list__num-row + .contents-text,
.step-list__num-row + .step-list__num-row,
.contents-text + .step-list__num-row {
  margin-top: 16px;
}
.step-list__num-exa,
.step-list__num-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  flex-shrink: 0;
  margin: 0;
  padding: 0 0 7px;
  box-sizing: border-box;
  line-height: 1.5;
}
.step-list__num-row-text {
  flex: 1;
  margin-top: 0;
}
.preparation-list {
  padding-left: 0;
}
.preparation-list__item {
  padding-left: 1em;
  font-size: 1.125rem;/* 18px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.54px;
  position: relative;
}
.preparation-list__item::before {
  content: "・";
  position: absolute;
  top: 0;
  left: 0;
}
.preparation-list__sub {
  font-size: 1rem;/* 16px */
  letter-spacing: 0.48px;
}
.preparation-note {
  margin-top: 8px;
  font-size: 1rem;/* 16px */
  line-height: 1.8;
  letter-spacing: 0.48px;
}
.preparation-column {
  align-items: flex-start;
}
.preparation-column__image {
  flex: 0 0 280px;
}
.preparation-invoice-image {
  overflow: hidden;
  border: 1px solid var(--color-mono200);
  border-radius: 12px;
}
.research-study-title {
  margin: 56px 0 0;
  padding: 0 0 5px 0;
  border-bottom: 1px solid var(--color-mono400);
  font-size: 1.5rem;/* 24px */
  line-height: 1.5;
  letter-spacing: 0.72px;
}
.research-study-title::before {
  display: none;
}
.research-study-title + .research-secret__item-content,
.research-study-title + .summary-sample__list{
  margin-top: 32px;
}
.research-study-title + .contents-text {
  margin-top: 8px;
}
.research-study-title--facility {
  line-height: 1.5;
}
.contents-text--facility {
  line-height: 1.8;
}
.more-research {
  padding: 120px 0;
  background-color: #faf2e6;
  background-image: linear-gradient(90deg, rgba(255,255,255,0.7) 1px, transparent 1px), linear-gradient(rgba(255,255,255,0.7) 1px, transparent 1px);
  background-size: 32px 32px;
  border-bottom-right-radius: 160px;
  border-bottom-left-radius: 160px;
}
.more-research__container {
  margin-top: 0;
}

.more-research-section {
  padding-top: 144px;
  padding-bottom: 160px;
}

.research-section {
  padding: 110px 0 96px;
}
.research-section.pb-wide{
  padding-bottom: 160px;
}

.research-section-title {
  background-color: #faf2e6;
  border-radius: 0 12px 12px 0;
}
.research-section-title::before {
  border-radius: 9999px;
}
.research-study-dot-title {
  padding-left: 20px;
  color: var(--color-blue700);
  font-size: 1.25rem;/* 20px */
  line-height: 1.5;
  letter-spacing: 0.6px;
  position: relative;
}
.contents-text + .research-study-dot-title{
  margin-top: 32px;
}
.summary-sample__list + .research-study-dot-title{
  margin-top: 32px;
}
.research-study-dot-title + .research-card{
  margin-top: 20px;
}
.research-study-dot-title::before {
  content: "";
  width: 16px;
  height: 16px;
  background-color: var(--color-research-blue);
  border-radius: 50%;
  position: absolute;
  top: 0.65em;
  left: 0;
}
.ruby-off .research-study-dot-title::before {
  top: 0.4em;
}
.research-study-dot-title + .contents-text {
  margin-top: 4px;
}
.research-breakdown {
  display: flex;
  align-items: flex-start;
  gap: 25px;
}
.research-study-dot-title + .research-breakdown {
  margin-top: 4px;
}
.research-breakdown__list {
  flex: 1;
  min-width: 0;
  padding-left: 10px;
  font-size: 1.125rem;/* 18px */
  line-height: 1.8;
  letter-spacing: 0.54px;
}
.research-breakdown__list-item {
  padding-left: 14px;
  position: relative;
}
.research-breakdown__list-item::before {
  content: "";
  width: 5px;
  height: 5px;
  background-color: currentColor;
  border-radius: 50%;
  position: absolute;
  top: 0.9em;
  left: 1px;
}
.research-breakdown__image {
  flex: 0 0 280px;
}
.research-breakdown__image-frame {
  overflow: hidden;
  border: 1px solid var(--color-mono200);
  border-radius: 12px;
}
.research-breakdown__caption {
  margin-top: 4px;
  font-size: 1rem;/* 16px */
  line-height: 1.8;
  letter-spacing: 0.48px;
}
.step-list__num-exa {
  width: 54px;
  height: 56px;
  font-size: 1.5rem;/* 24px */
  letter-spacing: 0.72px;
}
.step-list__num-hint {
  width: 84px;
  height: 88px;
  font-size: 1rem;/* 16px */
  letter-spacing: 0.48px;
}
.step-list__num-hint .step-list__num-small {
  font-size: inherit;
  font-weight: bold;
  line-height: inherit;
  letter-spacing: inherit;
}
.research-example-box {
  margin-top: 32px;
  padding: 40px;
  background-color: #faf2e6;
  border-radius: 20px;
}
.research-example-box__lead {
  margin-top: 0;
}
.research-example-box__answer {
  margin-top: 0;
  padding-left: 64px;
}
.research-example-box__arrow {
  width: 40px;
  height: 40px;
  position: relative;
  background: url(/kids/research/common/img/icon_arrow_right.svg) no-repeat center / contain;
  transform: rotate(90deg);
  margin: 9px 0px 18px 0;
}
.research-example-box__list {
  padding-left: 0;
  font-size: 1.125rem;/* 18px */
  line-height: 1.8;
  letter-spacing: 0.54px;
}
.research-example-box__list-item {
  padding-left: 27px;
  position: relative;
}
.research-example-box__list-item::before {
  content: "";
  width: 5px;
  height: 5px;
  background-color: currentColor;
  border-radius: 50%;
  position: absolute;
  top: 0.9em;
  left: 10px;
}
.research-card {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 32px;
  padding: 40px;
  background-color: #faf2e6;
  border-radius: 20px;
}
.research-card + .research-card {
  margin-top: 32px;
}
.research-card + .contents-text {
  margin-top: 32px;
}
.research-card__topic {
  width: 100%;
}
.research-card__block {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.research-card__block.--gap-wide {
  gap:32px;
}
.research-card__highlight {
  margin-top: 0;
  line-height: 1.5;
}
.research-card__highlight span {
  background: linear-gradient(transparent calc(100% - 9px), var(--color-orange200) 0);
}
.research-card__example {
  margin-top: 0;
}
.research-card .research-card__example {
  margin-top: 0;
}
.step-list__num-row--start {
  align-items: flex-start;
}
.research-card__divider {
  height: 1px;
  background-color: #d8d0c3;
}
.research-card__example-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.research-card__example-main,
.research-card__example-note {
  margin-top: 0;
}
.research-card__example-note {
  font-size: 1rem;/* 16px */
  letter-spacing: 0.48px;
}
.research-card__example-main + .research-card__example-note{
  margin-top: 0;
}
.research-card__example-main + .contents-text{
  margin-top: 0;
}
.research-result-box {
  margin-top: 56px;
}
.research-card + .research-result-box {
  margin-top: 32px;
}
.research-result-box__text {
  line-height: 1.8;
}
.summary-sample {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 32px;
  padding: 40px 40px 64px;
  background-color: var(--color-mono0);
  border: 4px solid var(--color-mono200);
  border-radius: 20px;
}
.summary-sample__title {
  padding: 12px;
  background-color: #faf2e6;
  border-radius: 8px;
  color: var(--color-blue700);
  font-size: 1.25rem;/* 20px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.6px;
  text-align: center;
}
.summary-sample__section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.summary-sample__heading {
  padding-left: 14px;
  color: var(--color-blue700);
  font-size: 1.125rem;/* 18px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.54px;
  position: relative;
}
.summary-sample__heading::before {
  content: "";
  width: 10px;
  height: 10px;
  background-color: var(--color-research-blue);
  border-radius: 50%;
  position: absolute;
  top: 0.75em;
  left: 0;
}
.ruby-off .summary-sample__heading::before {
  top: 0.55em;
}
.summary-sample__text,
.summary-sample__list {
  font-size: 1.125rem;/* 18px */
  line-height: 1.8;
  letter-spacing: 0.54px;
}
.summary-sample__list {
  padding-left: 0;
}
.summary-sample__list-item {
  padding-left: 1em;
  position: relative;
}
.gap16 .summary-sample__list-item + .summary-sample__list-item {
  margin-top: 16px;
}
.summary-sample__list-item::before {
  content: "・";
  position: absolute;
  top: 0;
  left: 0;
}
.summary-sample__detail {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.summary-sample__detail + .summary-sample__detail {
  margin-top: 8x;
}
.summary-sample__detail-title {
  color: var(--color-blue700);
  font-size: 1rem;/* 16px */
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.48px;
}
.summary-sample__amount {
  display: flex;
  align-items: flex-end;
  gap: 16px;
}
.summary-sample__amount-text {
  flex: 1;
  min-width: 0;
  font-size: 1rem;/* 16px */
  line-height: 1.8;
  letter-spacing: 0.48px;
}
.summary-sample__detail-text {
  flex: 1;
  min-width: 0;
  font-size: 1rem;/* 16px */
  line-height: 1.8;
  letter-spacing: 0.48px;
}
.research-secret__item + .summary-sample__detail-text{
  margin-top: 32px;
}
.summary-sample__amount-result {
  flex-shrink: 0;
  width: 120px;
  font-size: 0;
}
.summary-sample__amount-row {
  display: flex;
  align-items: center;
  gap: 28px;
  width: fit-content;
}
.summary-sample__amount-calc {
  flex-shrink: 0;
}
.summary-sample__amount-image {
  padding: 12px 85px 8px;
  background-color: var(--color-mono0);
  text-align: center;
}
.summary-sample__amount-image img {
  max-width: 100%;
}
.summary-sample__breakdown {
  display: flex;
  align-items: flex-start;
  gap: 40px;
}
.summary-sample__breakdown-image {
  flex: 0 0 1;
  overflow: hidden;
  /* border: 1px solid var(--color-mono200); */
  border-radius: 12px;
}
.point-box > .step-list__num-exa:first-child,
.point-box > .step-list__num-hint:first-child {
  margin-bottom: 16px;
}
@media screen and (max-width: 767px) {
  
  .step-list__num-row {
    gap: 12px;
  }
  .research-section.pb-wide {
    padding-bottom: 160px;
  }
  .research-breakdown {
    flex-direction: column;
    gap: 20px;
  }
  .research-breakdown__image {
    flex: 1;
  }
  .research-example-box {
    padding: 24px;
  }
  .research-example-box__answer {
    padding-left: 0;
  }
  .research-card {
    gap: 24px;
    margin-top: 24px;
    padding: 24px 16px;
    border-radius: 16px;
  }
  .research-card + .research-card {
    margin-top: 18px;
  }
  .research-card + .contents-text {
    margin-top: 16px;
  }
  .research-card__block {
    gap: 12px;
  }
  .research-card__highlight span {
    background: linear-gradient(transparent calc(100% - 7px), var(--color-orange200) 0);
  }
  .research-card__example-note {
    font-size: 0.875rem;/* 14px */
    letter-spacing: 0.42px;
  }
  .summary-sample {
    gap: 32px;
    margin-top: 24px;
    padding: 16px 16px 32px;
    border-width: 3px;
    border-radius: 16px;
  }
  .summary-sample__title {
    font-size: 1rem;/* 16px */
    letter-spacing: 0.54px;
    padding: 8px;
  }
  .summary-sample__section {
    gap: 12px;
  }
  .summary-sample__detail-title {
    font-size: 0.875rem;/* 14px */
  }
  .summary-sample__heading,
  .summary-sample__text,
  .summary-sample__list {
    font-size: 1rem;/* 16px */
    letter-spacing: 0.48px;
  }
  .research-study-title + .research-secret__item-content, .research-study-title + .summary-sample__list {
    margin-top: 24px;
  }
  .summary-sample__amount {
    align-items: flex-start;
    flex-direction: column;
  }
  .summary-sample__amount-image {
    padding: 8px 0;
  }
  .summary-sample__breakdown {
    flex-direction: column;
    gap: 16px;
  }
  .summary-sample__breakdown-image {
    flex: 1;
    width: 100%;
  }
  .preparation-list__item{
    font-size: 1rem;/* 16px */
  }
  .preparation-column__image {
    flex: 1;
  }
}

@media screen and (max-width: 767px) {

  .mizuiku-contents--research .hero__title img {
    width: min(286.5px, 100%);
  }
  .mizuiku-contents--research .hero__title.--wide img {
    width: min(335px, 100%);
  }

  .mizuiku-contents--research .hero__text br {
    display: none;
  }

  .mizuiku-contents--research .preparation-column.column-2--sp-reverse {
    flex-direction: column;
    align-items: stretch;
    gap: 20px;
  }

  .mizuiku-contents--research .preparation-list__item {
    font-size: 1rem;
    letter-spacing: 0.48px;
  }

  .mizuiku-contents--research .preparation-list__sub,
  .mizuiku-contents--research .preparation-note {
    font-size: 0.875rem;
    letter-spacing: 0.42px;
  }

  .mizuiku-contents--research .preparation-invoice-image,
  .mizuiku-contents--research .research-breakdown__image-frame {
    width: 100%;
    box-sizing: border-box;
    border-radius: 8px;
  }

  .mizuiku-contents--research .preparation-invoice-image img,
  .mizuiku-contents--research .research-breakdown__image-frame img {
    width: 100%;
    height: auto;
  }

  .mizuiku-contents--research .research-section {
    padding: 88px 20px 48px;
  }
  .mizuiku-contents--research .research-section.pb-wide {
    padding-bottom: 68px;
  }

  .mizuiku-contents--research .research-section-title {
    border-radius: 0 8px 8px 0;
  }

  .mizuiku-contents--research .more-research .research-section-title {
    margin-top: 0;
  }

  .mizuiku-contents--research .research-study-title{
    margin-top: 40px;
    font-size: 1.125rem;
    letter-spacing: 0.54px;
    padding: 0 0 8px 0;
  }
  .research-study-title + .research-secret__item-content {
      margin-top: 20px;
  }
  .contents-text + .research-study-dot-title {
    margin-top: 20px;
  }
  .mizuiku-contents--research .research-study-title + .contents-text {
    margin-top: 8px;
  }

  .mizuiku-contents--research .research-study-dot-title{
    padding-left: 18px;
    font-size: 1rem;
    letter-spacing: 0.48px;
  }

  .mizuiku-contents--research .research-study-dot-title::before {
    width: 14px;
    height: 14px;
    top: 0.5em;
  }

  .mizuiku-contents--research .research-breakdown__list,
  .mizuiku-contents--research .research-example-box__list {
    padding-left: 0;
    font-size: 1rem;
    letter-spacing: 0.48px;
  }
  .research-breakdown__list-item{
    padding-left: 22px;
  }
  .research-breakdown__list-item::before{
    left: 8px;
  }

  .mizuiku-contents--research .research-breakdown__label {
    display: block;
  }

  .mizuiku-contents--research .research-breakdown__image {
    width: 100%;
  }

  .mizuiku-contents--research .research-breakdown__caption {
    font-size: 0.875rem;
    letter-spacing: 0.42px;
  }

  .mizuiku-contents--research .research-example-box {
    margin-top: 20px;
    padding: 20px 16px;
    border-radius: 20px;
  }

  .mizuiku-contents--research .research-example-box__lead,
  .mizuiku-contents--research .research-card__example {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .mizuiku-contents--research .research-example-box__answer {
    margin-top: 20px;
    padding-left: 0;
  }

  .mizuiku-contents--research .research-example-box__arrow {
    margin: 0 auto 20px;
  }

  .mizuiku-contents--research .research-example-box__arrow::before,
  .mizuiku-contents--research .research-example-box__arrow::after {
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
  }

  .mizuiku-contents--research .step-list__num-exa {
    width: 30px;
    height: 36px;
    font-size: 1rem;
    line-height: 1;
    letter-spacing: 0.48px;
  }
  .mizuiku-contents--research .sp-exa-absolute .research-card__example-main {
    padding-left: 42px;
    margin: -4px 0 4px 0;
  }
  .mizuiku-contents--research .sp-exa-absolute {
    position: relative;
  }
  .mizuiku-contents--research .sp-exa-absolute .step-list__num-exa{
    position: absolute;
    top: -5px;
    left: 0;
  }

  .mizuiku-contents--research .step-list__num-hint {
    width: 60px;
    height: 62px;
    padding: 4px 0 7px;
    font-size: 0.75rem;
    line-height: 1.4;
    letter-spacing: -0.36px;
  }

  .mizuiku-contents--research .more-research-section {
    padding: 88px 20px 64px;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
    background-size: 19px 19px;
  }

  .mizuiku-contents--research .research-card {
    gap: 20px;
    padding: 20px 16px;
    border-radius: 20px;
  }
  .mizuiku-contents--research .research-card .summary__text-area-image{
    width: 100%;
    margin-top: 8px;
  }

  .mizuiku-contents--research .research-card__block {
    gap: 16px;
  }

  .mizuiku-contents--research .research-card__example-note {
    font-size: 0.875rem;
    letter-spacing: 0.42px;
    margin-top: 0;
  }

  .mizuiku-contents--research .research-result-box {
    margin-top: 40px;
    padding: 12px 16px;
  }
  .mizuiku-contents--research .kirakira-box {
    margin-top: 20px;
  }

  .mizuiku-contents--research .summary-sample__amount-row {
    display: block;
    min-height: 101px;
    padding-right: 88px;
    position: relative;
    max-width: 260px;
  }

  .mizuiku-contents--research .summary-sample__amount-text {
    font-size: 0.875rem;
    letter-spacing: 0.42px;
  }

  .mizuiku-contents--research .summary-sample__amount-result {
    width: 80px;
    position: absolute;
    right: 0;
    bottom: 0;
  }

  .mizuiku-contents--research .summary-sample__amount-result img {
    max-width: 100%;
    height: auto;
  }

  .mizuiku-contents--research .summary-sample__amount-image {
    padding: 4px 0 15px;
  }

  .mizuiku-contents--research .summary-sample__amount-image img {
    width: 100%;
    height: auto;
  }

  .mizuiku-contents--research .summary-sample__breakdown-image picture,
  .mizuiku-contents--research .summary-sample__breakdown-image img {
    display: block;
    width: 100%;
  }
  .summary-sample__detail-text{
    font-size: 0.875rem;
    letter-spacing: 0;
  }
  .research-secret__item + .summary-sample__detail-text{
    margin-top: 24px;
  }
  .gap16 .summary-sample__list-item + .summary-sample__list-item{
    margin-top: 8px;
  }
}

.back-to-list{
  padding: 60px 20px;
}
.back-to-list__title{
  font-size: 1.5rem;/* 24px */
  font-weight: bold;
  color: var(--color-blue700);
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: 0.03em;
  position: relative;
}
.back-to-list__title::before,
.back-to-list__title::after{
  content: "";
  width: 38px;
  height: 45px;
  background: url(/kids/research/common/img/icon_fukidashi.svg) no-repeat center / contain;
  position: absolute;
  top: calc(50% - 22.5px);
}
.back-to-list__title::before{
  left: calc(50% - 216px)
}
.back-to-list__title::after{
  left: calc(50% + 176px);
  transform: scaleX(-1);
}
@media screen and (max-width: 767px) {
  .back-to-list{
    padding: 36px 20px;
  }
  .back-to-list__title{
    font-size: 1.25rem;/* 20px */
  }
  .back-to-list__title::before,
  .back-to-list__title::after{
    top: calc(50% - 14.5px);
  }
  .back-to-list__title::before{
    left: calc(50% - 116px)
  }
  .back-to-list__title::after{
    left: calc(50% + 76px);
    transform: scaleX(-1);
  }
}

/* =====================================
  popup faq
===================================== */

body.research-popup-open {
  overflow: hidden;
}

.research-popup {
  display: flex;
  justify-content: flex-end;
  padding-left: 32px;
  position: fixed;
  inset: 0;
  z-index: 300;
  visibility: hidden;
  pointer-events: none;
}

.research-popup.is-open {
  visibility: visible;
  pointer-events: auto;
}

.research-popup__backdrop {
  position: absolute;
  inset: 0;
  background: transparent;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.research-popup__panel {
  width: min(100%, 825px);
  height: 100%;
  margin-left: auto;
  overflow-y: auto;
  position: relative;
  background:
    radial-gradient(circle at 18% 10%, rgba(108, 211, 232, 0.28), transparent 24%),
    linear-gradient(180deg, #effbff 0%, #f8f0df 26%, #f8f0df 100%);
  /* box-shadow: -4px 0 7px rgba(8, 48, 68, 0.14); */
  transform: translate3d(100%, 0, 0);
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.research-popup.is-open .research-popup__backdrop {
  opacity: 1;
}

.research-popup--ready .research-popup__panel {
  transform: translate3d(0, 0, 0);
}

.research-popup__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: clamp(16px, 2vw, 24px) clamp(12px, 2vw, 22px);
  gap: clamp(6px, 1vw, 12px);
  background-color: transparent;
  position: sticky;
  top: 0;
  z-index: 20;
  isolation: isolate;
  border-radius: 0 0 16px 16px;
}

.research-popup__header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: #FFF1DC;
  border-radius: inherit;
  z-index: -1;
}

.research-popup__header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 18px;
  background-color: #fff8ed;
  z-index: -2;
}

.research-popup__header-close {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  background: none;
  border: 0;
  color: var(--color-blue950);
  min-width: 0;
  flex-shrink: 1;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  text-decoration: none;
  -webkit-appearance: none;
  appearance: none;
}

@media screen and (max-width: 767px) {
  .research-popup__header-close {
    gap: 4px;
  }
}

.research-popup__header-close-icon {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 24px;
  height: 24px;
  border-radius: 9999px;
  background-color: #005cab;
  position: relative;
  flex-shrink: 0;
}

.research-popup__header-close-icon::before,
.research-popup__header-close-icon::after {
  content: "";
  width: 10px;
  height: 1.5px;
  background-color: #fff;
  position: absolute;
}

.research-popup__header-close-icon::before {
  transform: rotate(45deg);
}

.research-popup__header-close-icon::after {
  transform: rotate(-45deg);
}

.research-popup__header-close-text {
  font-size: 1.125rem;
  font-weight: bold;
  line-height: 1.35;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.research-popup__header-close-text ruby,
.research-popup__header-ruby-text ruby,
.research-faq__close-link.contents-button__link ruby {
  display: inline-block;
  position: relative;
  vertical-align: baseline;
}

.research-popup__header-close-text rt,
.research-popup__header-ruby-text rt,
.research-faq__close-link.contents-button__link rt {
  position: absolute;
  left: 50%;
  bottom: calc(100% - 0.15em);
  transform: translateX(-50%);
  font-size: 0.5em;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0;
  white-space: nowrap;
}

.research-popup__header-close-text rp,
.research-popup__header-ruby-text rp,
.research-faq__close-link.contents-button__link rp {
  display: none;
}

.research-popup__header-ruby {
  display: flex;
  align-items: center;
  gap: clamp(4px, 0.8vw, 12px);
  margin-left: auto;
  min-width: 0;
  flex-shrink: 1;
}

.research-popup__header-ruby-text {
  margin: 0;
  font-size: 1rem;
  font-weight: bold;
  line-height: 1.35;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.research-popup__header-ruby-toggle {
  width: 64px;
  height: 32px;
  border-radius: 9999px;
  background-color: #d8dde2;
  position: relative;
  flex-shrink: 0;
  transition: background-color 0.2s ease;
}

.research-popup__header-ruby-toggle::after {
  content: "";
  width: 24px;
  height: 24px;
  border-radius: 9999px;
  background-color: #fffdf7;
  position: absolute;
  top: 50%;
  left: 4px;
  transform: translateY(-50%);
  transition: transform 0.2s ease;
}

.research-popup__header-ruby-toggle[aria-pressed="true"] {
  background-color: #005cab;
}

.research-popup__header-ruby-toggle[aria-pressed="true"]::after {
  transform: translate(32px, -50%);
}

@media (hover: hover) {
  .research-popup__header-close:hover .research-popup__header-close-text {
    color: #005cab;
    text-decoration: underline;
    text-underline-offset: 0.12em;
  }
}

.research-faq {
  min-width: auto;
  width: auto;
  max-width: none;
  padding-right: 0 !important;
  padding-bottom: 64px;
}

.research-faq__bg-wave {
  width: calc(100% + 15px);
  padding: 32px 0 128px;
  margin-right: -15px;
  background-color: #fff8ed;
  position: relative;
  overflow: visible;
}

.research-faq__bg-wave::before,
.research-faq__bg-wave::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  background-color: #1ebcdb;
  background-image: linear-gradient(90deg, #61d0e6 1px, transparent 1px), linear-gradient(#61d0e6 1px, transparent 1px);
  background-size: 32px 32px;
}

.research-faq__bg-wave::before {
  bottom: 0;
  height: 188px;
}

.research-faq__bg-wave::after {
  bottom: 187px;
  height: 86px;
  background-position: 0 22px;
  -webkit-mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 825 86" preserveAspectRatio="none"><path d="M0 86H825V28.007C825 28.007 694.275 84.7837 609.353 85.9387C479.859 87.6998 394.329 6.65876 264.835 0.300452C153.483 -5.16651 0 65.7884 0 65.7884V86Z" fill="black"/></svg>');
  mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 825 86" preserveAspectRatio="none"><path d="M0 86H825V28.007C825 28.007 694.275 84.7837 609.353 85.9387C479.859 87.6998 394.329 6.65876 264.835 0.300452C153.483 -5.16651 0 65.7884 0 65.7884V86Z" fill="black"/></svg>');
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}

.research-faq__hero {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0 64px;
  position: relative;
  z-index: 1;
}

.research-faq__hero-title-wrap {
  padding: 0;
  position: relative;
}

.research-faq__hero-title-image {
  width: min(100%, 542px);
  margin: 0;
  font-size: 0;
}

.research-faq__hero-title-image img {
  display: block;
  width: 100%;
  height: auto;
}

.research-faq__hero-card {
  margin-top: 24px;
  margin-left: 0;
  margin-right: 0;
  padding: 24px 64px 32px;
  border-radius: 20px;
  background-color: #e9f4ff;
  position: relative;
}

.research-faq__hero-card::before {
  content: "";
  width: 88px;
  height: 48px;
  background: url(/kids/research/img/img_ribbon.svg) no-repeat center / contain;
  position: absolute;
  top: 0;
  left: -49px;
}

.research-faq__hero-card::after {
  content: "";
  width: 45px;
  height: 45px;
  border-radius: 12px 0 0 0;
  background: linear-gradient(135deg, var(--color-note-try) 50%, #1ebcdb 50%);
  position: absolute;
  right: -1px;
  bottom: -1px;
}

.research-faq__hero-card-inner {
  position: relative;
}

.research-faq__hero-card-title {
  color: var(--color-blue950);
  font-size: 1.75rem;
  font-weight: bold;
  line-height: 1.5;
  letter-spacing: 0.03em;
  text-align: center;
}

.research-faq__hero-card-title-inner {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 0 10px 2px;
  position: relative;
  z-index: 1;
}

.research-faq__hero-card-title-inner::after {
  content: "";
  width: calc(100% + 8px);
  height: 12px;
  border-radius: 9999px;
  background-color: var(--color-orange200);
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  z-index: -1;
}

.research-faq__hero-card-title-text {
  display: inline-block;
}

.research-faq__hero-card-icon {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  background: url("data:image/svg+xml;base64,PHN2ZyBwcmVzZXJ2ZUFzcGVjdFJhdGlvPSJub25lIiB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiBvdmVyZmxvdz0idmlzaWJsZSIgc3R5bGU9ImRpc3BsYXk6IGJsb2NrOyIgdmlld0JveD0iMCAwIDQ1LjIzNjcgNDIiIGZpbGw9Im5vbmUiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+CjxnIGlkPSJGcmFtZSA2MjcxMzgiPgo8cGF0aCBkPSJNMCAyMUMwIDkuNDAyMDIgOS40MDIwMiAwIDIxIDBWMEMzMi41OTggMCA0MiA5LjQwMjAyIDQyIDIxVjIxQzQyIDMyLjU5OCAzMi41OTggNDIgMjEgNDJWNDJDOS40MDIwMiA0MiAwIDMyLjU5OCAwIDIxVjIxWiIgZmlsbD0idmFyKC0tZmlsbC0wLCAjRUI2RTAwKSIvPgo8ZyBpZD0iR3JvdXAgNDg4Ij4KPHBhdGggaWQ9IlZlY3RvciIgZD0iTTE2LjU4NzYgMjIuMzk2QzE2LjI2NCAyMi40MDA3IDE1Ljk0OTggMjIuMzEwOCAxNS42NjYyIDIyLjEyNjNDMTUuMjg2NCAyMS44ODAyIDE1LjAzNzYgMjEuNTIyMiAxNC45NDE3IDIxLjA4MzRDMTQuNzk1IDIwLjQyIDE0Ljg2NTIgMTkuNzAxMiAxNS4xNDE4IDE4Ljk1MzFDMTUuMzk3OSAxOC4yNTI2IDE1Ljg3NTEgMTcuNDI4MyAxNi41NDcxIDE2LjQ5MTNDMTYuOTg0MSAxNS44MzUzIDE3LjI3OTIgMTUuMjgwOSAxNy40MTY5IDE0Ljg1NDVDMTcuNTQ0NSAxNC40NzAxIDE3LjU2NjIgMTQuMTAzIDE3LjQ4NzEgMTMuNzM3NEMxNy4zNjI4IDEzLjE1NzUgMTcuMDYwNCAxMi43NTMxIDE2LjU3NDIgMTIuNDkyOEMxNi4yMzIzIDEyLjMwOTEgMTUuODU0NSAxMi4yMjU0IDE1LjQxOTYgMTIuMjMxNkMxNS4xOTY4IDEyLjIzNDggMTQuOTYzOCAxMi4yNjQ0IDE0LjcyMDQgMTIuMzE1QzE0LjI2MDIgMTIuNDE1OSAxMy44NjQ3IDEyLjU5NDUgMTMuNTU1MSAxMi44NTU3QzEzLjI0MDMgMTMuMTE2OSAxMy4wMDU2IDEzLjQyOTQgMTIuODUxNSAxMy44MDg5QzEyLjY4NjkgMTQuMjA0MyAxMi40MzExIDE0LjUxNzEgMTIuMDg0IDE0Ljc1MjZDMTEuODA1NCAxNC45NDUyIDExLjQ5OSAxNS4wNDM5IDExLjE3NTQgMTUuMDQ4NUMxMS4wNjQxIDE1LjA1MDEgMTAuOTQ3MiAxNS4wNDEzIDEwLjgzMDIgMTUuMDE2OEMxMC4zNTcxIDE0Ljk0NSA5Ljk3MTkzIDE0LjY5OSA5LjczMzQ2IDE0LjMxNDZDOS40OTQ5OSAxMy45MzAzIDkuNDQxMzQgMTMuNDgwNCA5LjU4ODk2IDEzLjAwNjdDOS45Mzc0NiAxMi4wNzQzIDEwLjUxMDQgMTEuMjY0NCAxMS4yOTcgMTAuNTcxOUMxMi4wNzg0IDkuODc5NTcgMTMuMDE2NSA5LjQxMDI5IDE0LjA3NDYgOS4xODU1NkMxNC42MDg5IDkuMDczMTIgMTUuMTI3OSA5LjAwODA1IDE1LjYyMTIgOS4wMDFDMTYuNjU1NSA4Ljk4NjIgMTcuNjA4MSA5LjIxMzYxIDE4LjQ0NjkgOS42Njc5NkMxOS43MTMyIDEwLjM1NzIgMjAuNTE4MyAxMS40NjcxIDIwLjg0NTYgMTIuOTYxQzIwLjk5ODEgMTMuNjcxNCAyMC45NzYyIDE0LjQyNjMgMjAuNzY4OSAxNS4yMDQ3QzIwLjU3MTkgMTUuOTU2OSAyMC4xNzk2IDE2Ljc3OTkgMTkuNjA3MyAxNy42NDIyQzE5LjI3NDQgMTguMTQ0NyAxOC45NjI5IDE4LjY2MjcgMTguNjc3OSAxOS4xODAzQzE4LjQyOTMgMTkuNjM5NyAxOC4yOTcgMjAuMDY2IDE4LjI4NjIgMjAuNDU5MkMxOC4yNzA1IDIwLjg3ODYgMTguMTY0MiAyMS4yNjI2IDE3Ljk2NyAyMS42MDA4QzE3LjczODggMjEuOTk3IDE3LjM3NjEgMjIuMjUzOCAxNi45MjY1IDIyLjM1NDVDMTYuODEwMSAyMi4zNzcxIDE2LjY5ODkgMjIuMzg5MiAxNi41ODc1IDIyLjM5MDhMMTYuNTg3NiAyMi4zOTZaIiBmaWxsPSJ2YXIoLS1maWxsLTAsICNGRkZERjcpIi8+CjxwYXRoIGlkPSJWZWN0b3JfMiIgZD0iTTI1LjI3NTQgMzAuMjc2N0MyNS4wNzkzIDMwLjE1MTYgMjQuOTI2MSAyOS45NzM2IDI0LjgyODcgMjkuNzUwOEMyNC42OTc4IDI5LjQ1MyAyNC42ODk4IDI5LjEzOTcgMjQuODA1NSAyOC44Mzg0QzI0Ljk3OTUgMjguMzgyMSAyNS4zMDU1IDI3Ljk3ODEgMjUuNzY3MSAyNy42MzgyQzI2LjE5NzUgMjcuMzE4NiAyNi44MDk3IDI3LjAxMjEgMjcuNTgzMyAyNi43MTQ5QzI4LjEwNDkgMjYuNDkzNSAyOC41MDEgMjYuMjc3MiAyOC43NTIxIDI2LjA3NTVDMjguOTgwNSAyNS44OTUxIDI5LjEzODUgMjUuNjgzMiAyOS4yMzU1IDI1LjQzMjRDMjkuMzg5OCAyNS4wMzUxIDI5LjM2OCAyNC42NzI4IDI5LjE3ODggMjQuMzI0NUMyOS4wNDYxIDI0LjA3OTEgMjguODUyMyAyMy44Nzk2IDI4LjU4ODYgMjMuNzExNkMyOC40NTM2IDIzLjYyNTUgMjguMzAyIDIzLjU1MTIgMjguMTM1OSAyMy40ODU1QzI3LjgxOTYgMjMuMzY0MyAyNy41MTE2IDIzLjMxNTMgMjcuMjIyNSAyMy4zNDk5QzI2LjkzMDMgMjMuMzgyNCAyNi42NjYgMjMuNDc3NCAyNi40MjM1IDIzLjY0NDRDMjYuMTY4NSAyMy44MTY4IDI1Ljg5MTMgMjMuOTAzNiAyNS41ODk5IDIzLjkwOEMyNS4zNDY1IDIzLjkxMzYgMjUuMTIzNSAyMy44NTE5IDI0LjkyNzQgMjMuNzI2OUMyNC44NTk5IDIzLjY4MzggMjQuNzkzMiAyMy42MzI0IDI0LjczMjYgMjMuNTcxNEMyNC40NzY5IDIzLjM0MTUgMjQuMzQyOCAyMy4wNDE2IDI0LjM1MTQgMjIuNzE2NkMyNC4zNiAyMi4zOTE2IDI0LjUwNTQgMjIuMTAwMyAyNC43ODEyIDIxLjg3NDFDMjUuMzU4NyAyMS40NTE4IDI2LjAyMjcgMjEuMTkxOCAyNi43Njg1IDIxLjA4NjdDMjcuNTExMiAyMC45Nzk1IDI4LjI1OTkgMjEuMDY4MiAyOC45ODQgMjEuMzUxMkMyOS4zNDkzIDIxLjQ5NDcgMjkuNjg2NyAyMS42NjA2IDI5Ljk4NTcgMjEuODUxMkMzMC42MTI2IDIyLjI1MDggMzEuMDk0OCAyMi43NjM2IDMxLjQxOTEgMjMuMzY3OEMzMS45MDczIDI0LjI4MTggMzEuOTUyNCAyNS4yNjYyIDMxLjU1ODkgMjYuMjkyNkMzMS4zNjk5IDI2Ljc3OTUgMzEuMDU4NiAyNy4yMjQxIDMwLjYyNjcgMjcuNjA5N0MzMC4yMTEzIDI3Ljk4MzYgMjkuNjUwNiAyOC4zMjI4IDI4Ljk2NjQgMjguNjE0NkMyOC41NjggMjguNzg0OSAyOC4xNzY0IDI4Ljk3MjkgMjcuODAwOCAyOS4xNzEyQzI3LjQ3MDEgMjkuMzQ4OSAyNy4yMjIyIDI5LjU1MjYgMjcuMDYwNSAyOS43ODQ1QzI2Ljg4NTQgMzAuMDMwMSAyNi42Njk5IDMwLjIxODcgMjYuNDE3OSAzMC4zNDRDMjYuMTI0MyAzMC40OTE4IDI1LjgwNTIgMzAuNTAyNyAyNS40OTU0IDMwLjM4NTZDMjUuNDE2NSAzMC4zNTMyIDI1LjM0NSAzMC4zMTY1IDI1LjI3NzUgMzAuMjczNUwyNS4yNzU0IDMwLjI3NjdaIiBmaWxsPSJ2YXIoLS1maWxsLTAsICNGRkZERjcpIi8+CjxwYXRoIGlkPSJWZWN0b3JfMyIgZD0iTTE3Ljc4OTUgMjcuODU1M0MxNy4zODk2IDI3Ljg2MDUgMTcuMDA3OSAyNy43NTA2IDE2LjY1NDEgMjcuNTI1MkMxNi4xNzA3IDI3LjIxNjcgMTUuODYzMiAyNi43NzA4IDE1Ljc0MTUgMjYuMjA3NUMxNS42MTk5IDI1LjY0NDIgMTUuNzE1OSAyNS4xMDgxIDE2LjAzIDI0LjYyNDFDMTYuMzM5IDI0LjE0MDEgMTYuNzg0IDIzLjgzNDMgMTcuMzQ1MSAyMy43MTJDMTcuNDkyOCAyMy42OCAxNy42NDA3IDIzLjY2MzEgMTcuNzgzOCAyMy42NjEyQzE4LjE4MzcgMjMuNjU2IDE4LjU2NTUgMjMuNzY1OSAxOC45MTkzIDIzLjk5MTJDMTkuNDAyNiAyNC4yOTk4IDE5LjcxMDIgMjQuNzQ1NyAxOS44MzE4IDI1LjMwOUMxOS45NTM0IDI1Ljg3MjMgMTkuODU3MyAyNi40MDM0IDE5LjU0MzQgMjYuODkyNEMxOS4yMzQzIDI3LjM3NjQgMTguNzg5NCAyNy42ODIyIDE4LjIyODIgMjcuODA0NUMxOC4wODA2IDI3LjgzNjQgMTcuOTMyNyAyNy44NTM0IDE3Ljc4OTUgMjcuODU1M1oiIGZpbGw9InZhcigtLWZpbGwtMCwgI0ZGRkRGNykiLz4KPHBhdGggaWQ9IlZlY3Rvcl80IiBkPSJNMjMuODQwOCAzNC4wMzA3QzIzLjU5ODYgMzMuODc1OSAyMy40MTI4IDMzLjY1OTEgMjMuMjg5MyAzMy4zODRDMjMuMTIwOSAzMy4wMDc4IDIzLjExMjMgMzIuNjE4NiAyMy4yNjE4IDMyLjIzMjNDMjMuNDExMiAzMS44NDYgMjMuNjgwNyAzMS41NjIgMjQuMDYwNCAzMS4zOTUzQzI0LjQzNzEgMzEuMjI2OCAyNC44MjUxIDMxLjIxODkgMjUuMjEwNCAzMS4zNjcxQzI1LjMxMTcgMzEuNDA2MiAyNS40MDcyIDMxLjQ1NDUgMjUuNDkzOSAzMS41MDk5QzI1LjczNjEgMzEuNjY0NyAyNS45MjE5IDMxLjg4MTUgMjYuMDQ1NCAzMi4xNTY1QzI2LjIxMzcgMzIuNTMyNyAyNi4yMjIzIDMyLjkyMTkgMjYuMDcyOSAzMy4zMDgyQzI1LjkyMzUgMzMuNjk0NSAyNS42NTYgMzMuOTc1NSAyNS4yNzQzIDM0LjE0NTJDMjQuODk3NSAzNC4zMTM3IDI0LjUwOTYgMzQuMzIxNiAyNC4xMjQzIDM0LjE3MzVDMjQuMDIzIDM0LjEzNDMgMjMuOTI3NSAzNC4wODYxIDIzLjg0MDggMzQuMDMwN1oiIGZpbGw9InZhcigtLWZpbGwtMCwgI0ZGRkRGNykiLz4KPC9nPgo8cGF0aCBpZD0iUG9seWdvbiA4MCIgZD0iTTQ0LjkyNjkgMzEuMTYwNEM0NS41OTc3IDMxLjgzMTMgNDUuMTA1NCAzMi45NzcyIDQ0LjE1NyAzMi45NTI1TDM2LjgzNCAzMi43NjE0QzM2LjA5MTggMzIuNzQyMSAzNS42MDM2IDMxLjk3OTUgMzUuODk2NyAzMS4yOTczTDM4LjA0IDI2LjMwODJDMzguMzMzMSAyNS42MjYgMzkuMjIyMyAyNS40NTUyIDM5Ljc0NzIgMjUuOTgwMkw0NC45MjY5IDMxLjE2MDRaIiBmaWxsPSJ2YXIoLS1maWxsLTAsICNFQjZFMDApIi8+CjwvZz4KPC9zdmc+Cg==") no-repeat center / contain;
}

.research-faq__hero-card-lead {
  margin-top: 12px;
  color: var(--color-blue950);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.03em;
  text-align: center;
}

.research-faq__main {
  max-width: 825px;
  margin: -98px auto 0;
  padding: 48px 0 0;
  border-radius: 60px 60px 0 0;
  background-color: #fffdf7;
  position: relative;
  z-index: 1;
}

.research-faq__section {
  padding: 0 22px;
}

.research-faq__section + .research-faq__section {
  margin-top: 32px;
}

.research-faq__section-head {
  padding: 0 10px;
}

.research-faq__section-head .container__title--h3 {
  display: flex;
  align-items: center;
  background-color: #faf2e6;
  border-radius: 0 8px 8px 0;
  overflow: hidden;
}

.container__title--h3::before {
    content: "";
    width: 8px;
    height: 100%;
    background-color: var(--color-research-blue);
    border-radius: 9999px;
    position: absolute;
    top: 0;
    left: 0;
}

.research-faq__level {
  max-width: 780px;
}

.research-faq__level img {
  display: block;
  width: 100%;
  height: auto;
}

.research-faq__group {
  margin-top: 24px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background-color: transparent;
}

.research-faq__group-title {
  color: var(--color-blue700);
  font-size: 1.625rem;
  font-weight: bold;
  line-height: 1.45;
  letter-spacing: 0.03em;
}

.research-faq__group-title picture {
  display: block;
}

.research-faq__group-title img {
  display: block;
  max-width: 100%;
  height: auto;
}

.research-faq__accordion {
  margin-top: 14px;
}

.research-faq__accordion + .research-faq__accordion,
.research-faq__accordion .accordion__item + .accordion__item {
  margin-top: 10px;
}

.research-faq__accordion.accordion {
  border: 0;
  background-color: transparent;
}

.research-faq__accordion .accordion__item {
  border: 2px solid #e5d6bd;
  border-radius: 16px;
  background-color: #fffdf8;
  overflow: hidden;
}

.research-faq__accordion .accordion__header {
  padding: 20px 70px 20px 18px;
}

.research-faq__accordion .accordion__header.is-open {
  padding-bottom: 16px;
  border-bottom-color: #e7d8bf;
}

.research-faq__accordion .accordion__title {
  --color-icon: #009EBE;
}

.research-faq__accordion .accordion__title::after {
  width: 28px;
  height: 28px;
  right: -42px;
  background-size: 14px auto;
}

.research-faq__accordion .accordion__title--faq {
  padding: 0 0 0 50.64px;
  font-size: 1.125rem;
  line-height: 1.6;
  letter-spacing: 0.03em;
}

.research-faq__accordion .accordion__title--faq::before {
  width: 26.64px;
  height: 45.68px;
  top: 0;
  transform: none;
  background-color: #009EBE;
}

.research-faq__accordion .accordion__content.is-open {
  padding: 14px 0 18px;
}

.research-faq__accordion .accordion__inner {
  padding: 0 18px;
}

.research-faq__accordion .accordion__anser {
  --color-icon: #EB6E00;
  padding: 0 0 0 48.88px;
}

.research-faq__accordion .accordion__anser::before {
  width: 24.88px;
  height: 29.48px;
  top: 3px;
  background-color: #EB6E00;
}

.research-faq__answer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 192px;
  gap: 16px;
  align-items: start;
}

.research-faq__figure {
  margin: 0;
}

.research-faq__figure img {
  width: 100%;
  border-radius: 12px;
}

.research-faq__close-button {
  margin-top: 24px;
}

.research-faq__close-link.contents-button__link {
  max-width: 390px;
  margin: 0 auto;
  padding: 5px 24px 5px 64px;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.12);
  position: relative;
}

.research-faq__close-link.contents-button__link::after {
  display: none;
}

.research-faq__close-link.contents-button__link::before {
  content: "";
  width: 32px;
  height: 32px;
  border-radius: 9999px;
  background: var(--color-blue950) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14' fill='none'%3E%3Cpath d='M3.5 3.5L10.5 10.5' stroke='white' stroke-width='1.8' stroke-linecap='round'/%3E%3Cpath d='M10.5 3.5L3.5 10.5' stroke='white' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center / 14px 14px;
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  transition: 0.2s;
}

.research-faq__back {
  margin-top: 18px;
  text-align: center;
}

.research-faq__back-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-width: 240px;
  min-height: 52px;
  padding: 12px 32px;
  border: 2px solid var(--color-blue950);
  border-radius: 9999px;
  background-color: var(--color-mono0);
  color: var(--color-blue950);
  font-size: 0.9375rem;
  font-weight: bold;
  line-height: 1.4;
  letter-spacing: 0.03em;
}

.research-faq__back-link::before {
  content: "";
  width: 18px;
  height: 18px;
  margin-right: 10px;
  border-radius: 9999px;
  background: var(--color-blue950) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='7' height='7' viewBox='0 0 7 7' fill='none'%3E%3Cpath d='M4.75 1.25L2.5 3.5L4.75 5.75' stroke='white' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center / 7px auto;
}

@media (hover: hover) {
  .research-faq__close-link.contents-button__link:hover::before {
    background-color: var(--color-mono50);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14' fill='none'%3E%3Cpath d='M3.5 3.5L10.5 10.5' stroke='%23083044' stroke-width='1.8' stroke-linecap='round'/%3E%3Cpath d='M10.5 3.5L3.5 10.5' stroke='%23083044' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
    transform: translateY(-50%) scale(1.25);
  }

  .research-faq__back-link:hover {
    background-color: #fff7dc;
  }
}

@media screen and (max-width: 767px) {
  .research-popup {
    padding-left: 0;
  }

  .research-popup__panel {
    width: 100%;
    box-shadow: none;
  }

  .research-popup__header {
    padding: 16px;
    border-radius: 0 0 12px 12px;
  }

  .research-popup__header-close-text {
    font-size: 0.875rem;
  }

  .research-popup__header-ruby {
    gap: 8px;
  }

  .research-popup__header-ruby-text {
    font-size: 0.875rem;
  }

  .research-popup__header-ruby-toggle {
    width: 52px;
    height: 28px;
  }

  .research-popup__header-ruby-toggle::after {
    width: 20px;
    height: 20px;
    top: 4px;
    left: 4px;
  }

  .research-popup__header-ruby-toggle[aria-pressed="true"]::after {
    transform: translateX(24px);
  }

  .research-faq {
    padding-bottom: 48px;
  }

  .research-faq__bg-wave {
    width: 100%;
    padding: 24px 0 96px;
    margin-right: 0;
  }

  .research-faq__bg-wave::before {
    height: 174px;
  }

  .research-faq__bg-wave::after {
    bottom: 172px;
    height: 22px;
  }

  .research-faq__hero {
    padding: 0 20px;
  }

  .research-faq__hero-title-image {
    width: 100%;
    max-width: 335px;
  }

  .research-faq__hero-title-wrap {
    padding: 0;
  }

  .research-faq__hero-card {
    margin-top: 32px;
    margin-left: 0;
    margin-right: 0;
    min-height: 120px;
    padding: 16px;
    border-radius: 20px;
    background-color: #e9f4ff;
  }

  .research-faq__hero-card::before {
    width: 32px;
    height: 55px;
    background-image: url(/kids/research/img/popup/ashirai_sp.svg);
    top: -26px;
    right: -4px;
    left: auto;
    z-index: 1;
  }

  .research-faq__hero-card::after {
    content: "";
    width: 25px;
    height: 25px;
    background-color: var(--color-research-blue);
    position: absolute;
    right: 0;
    left: 0;
    z-index: 0;
    transform: rotate(90deg);
  }

  .research-faq__hero-card-inner {
    z-index: 1;
  }

  .research-faq__hero-card-title {
    font-size: 1.5rem;
  }

  .research-faq__hero-card-title-inner {
    gap: 6px;
    padding: 0 6px 2px;
  }

  .research-faq__hero-card-title-inner::after {
    height: 10px;
    width: calc(100% + 4px);
  }

  .research-faq__hero-card-icon {
    width: 34px;
    height: 34px;
  }

  .research-faq__hero-card-lead {
    max-width: 303px;
    margin: 10px auto 0;
    font-size: 0.875rem;
    line-height: 1.8;
    letter-spacing: 0.03em;
  }

  .research-faq__main {
    margin-top: -76px;
    padding-top: 32px;
    border-radius: 20px 20px 0 0;
  }

  .research-faq__section {
    padding: 0 20px;
  }

  .research-faq__section + .research-faq__section {
    margin-top: 20px;
  }

  .research-faq__section-head .container__title--h3 {
    display: flex;
    align-items: center;
    min-height: 40px;
    padding: 8px 16px 8px 22px;
    background-color: #faf2e6;
    border-radius: 0 8px 8px 0;
    overflow: hidden;
  }

  .research-faq__section-head .container__title--h3::before {
    width: 6px;
    border-radius: 9999px;
  }

  .research-faq__section-head .reading__level-img {
    width: 171px;
    height: 24px;
  }

  .research-faq__group {
    margin-top: 24px;
  }

  .research-faq__group + .research-faq__group {
    margin-top: 32px;
  }

  .research-faq__group-title {
    font-size: 1rem;
  }

  .research-faq__accordion {
    margin-top: 10px;
  }

  .research-faq__accordion .accordion__header {
    padding: 14px 42px 14px 12px;
  }

  .research-faq__accordion .accordion__title::after {
    width: 24px;
    height: 24px;
    right: -30px;
    background-size: 12px auto;
  }

  .research-faq__accordion .accordion__title--faq {
    padding-left: 28px;
    font-size: 1rem;
    letter-spacing: 0.48px;
  }

  .research-faq__accordion .accordion__title--faq::before {
    width: 16px;
    height: 24px;
  }

  .research-faq__accordion .accordion__inner {
    padding: 0 12px;
  }

  .research-faq__accordion .accordion__anser {
    padding-left: 28px;
    font-size: 1rem;
    line-height: 1.8;
    letter-spacing: 0.48px;
  }

  .research-faq__accordion .accordion__anser .contents-text {
    font-size: 1rem;
    line-height: 1.8;
    letter-spacing: 0.48px;
  }

  .research-faq__accordion .accordion__anser::before {
    width: 16px;
    height: 19px;
  }

  .research-faq__answer-layout {
    grid-template-columns: 1fr;
  }

  .research-faq__figure img {
    max-width: 160px;
  }

  .research-faq__close-button {
    margin-top: 20px;
    margin-bottom: 48px;
  }

  .research-faq__close-link.contents-button__link {
    width: 100%;
    max-width: none;
    padding: 5px 16px 5px 60px;
  }

  .research-faq__close-link.contents-button__link::before {
    left: 14px;
  }

  .research-faq__back-link {
    min-width: 200px;
    min-height: 44px;
    padding: 10px 24px;
    font-size: 0.875rem;
  }
}

.summary__text-area02 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.summary__text-area02 .contents-text {
  margin-left: 72px;
}

@media (max-width: 767px) {
  .summary__text-area02 {
    flex-direction: column;
    align-items: flex-start;
  }

  .summary__text-area02 .contents-text {
  margin-left: 0px;
}
}

.num-list__item--check {
  display: flex;
}