@font-face {
  font-family: "YakuHanJP";
  font-weight: 400;
  src: url("./assets/fonts/YakuHanJP/YakuHanJP-Regular.woff") format("woff");
  font-display: swap;
}

@font-face {
  font-family: "YakuHanJP";
  font-weight: 700;
  src: url("./assets/fonts/YakuHanJP/YakuHanJP-Bold.woff") format("woff");
  font-display: swap;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "YakuHanJP", "Ubuntu", "Zen Kaku Gothic New", -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h2 {
  font-weight: 900;
}

/* -------------------- components -------------------- */

.sp-only{
  display: none;
}
@media (max-width: 768px) {
  .sp-only {
    display: block;
  }
}

.amazon-fixed-button{
  width: 100px;
  height: 100px;
  border-radius: 55.556px;
  background: linear-gradient(289deg, #FF46AD 20.62%, #FF97A3 57.26%, #FFAA42 94.62%);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 0 16px 0 rgba(0, 0, 0, 0.25);
  display: flex;
  padding: 5.556px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.amazon-fixed-button.is-visible{
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.amazon-fixed-button__text{
  font-size: 13px;
  font-weight: bold;
}

.cta-button{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  max-width: 900px;
  font-weight: 700;
  font-size: clamp(20px, 14px + 1vw, 32px);
  height: clamp(64px, 57px + 1.94vw, 80px);
  padding: 16px 20px;
  margin: auto;
  background: #f49300;
  color: #FFFFFF;
  text-decoration: none;
  border-radius: 12px;
  box-shadow: 0px 0px 40.8px 0px rgba(255, 255, 255, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}
.cta-button::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent 0%,
    rgba(255, 255, 255, 0) 30%,
    rgba(255, 255, 255, 0.4) 50%,
    rgba(255, 255, 255, 0) 70%,
    transparent 100%
  );
  animation: shine 4s ease-in-out infinite;
}

@keyframes shine {
  0% {
    left: -100%;
  }
  40% {
    left: 150%;
  }
  100% {
    left: 150%;
  }
}
.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(244, 147, 0, 0.5);
}
.cta-button:active {
  transform: translateY(0);
}
.series-intro__cta-note{
  text-align: center;
}

.delimiter1{
  width: calc(100vw + 42px);
  height: auto;
  display: block;
  margin: 48px -21px 0;
  aspect-ratio: 1512/145;
  position: relative;
}
.delimiter2{
  width: calc(100vw + 42px);
  height: auto;
  display: block;
  margin: 48px -21px 0;
  aspect-ratio: 1512/174;
}
/* -------------------- header -------------------- */

.header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  padding: 0 20px;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
  position: relative;
  height: 92px;
}

.logo-badge {
  position: absolute;
  left: 16px;
  top: 0;
  background: #FFFFFF;
  padding: 16px;
  border-radius: 0 0 24px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 92px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.logo-container {
  height: 48px;
  width: 204px;
  position: relative;
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.logo-image {
  position: absolute;
  inset: 0;
  max-width: 100%;
  object-fit: cover;
  pointer-events: none;
  width: 100%;
  height: auto;
}

.button-icon {
  width: 32px;
  height: 32px;
  position: relative;
  flex-shrink: 0;
}

.icon-image {
  display: block;
  max-width: 100%;
  width: 100%;
  height: 100%;
}

/* -------------------- main-visual -------------------- */

.main {
  color: #FFFFFF;
}

.main-visual{
  padding-top: clamp(100px, 89px + 2.91vw, 124px);
  background: linear-gradient(112deg, #AEFFE8 5.33%, #97D9FF 88.76%);
  color: #00335C;
  font-size: clamp(18px, 12.5px + 1.45vw, 26px);
  font-weight: 700;
  position: relative;
  overflow: hidden;
}
.circle-blur,
.circle-blur-2{
  position: absolute;
  width: 480px;
  height: 506px;
  z-index: 0;
  animation: float 6s ease-in-out infinite;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(220, 240, 200, 0.8) 0%, rgba(220, 240, 200, 0) 70%);
  filter: blur(40px);
  pointer-events: none;
}

.circle-blur{
  top: 0;
  left: -5%;
}
.circle-blur-2{
  bottom: 6%;
  right: -5%;
}

@keyframes float {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
  100% {
    transform: translateY(0);
  }
}

.main-visual__container{
  position: relative;
  z-index: 2;
  padding-bottom: 5rem;
}
.main-visual__title{
    text-align: center;
    font-size: clamp(36px, 16px + 5.33vw, 80px);
    font-style: normal;
    line-height: 150%;
    margin-bottom: 16px;
    padding: 0 16px;
}

.main-visual__content{
  display: flex;
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 0 20px;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 8.5px + 4.12vw, 58px);
}

.main-visual__right{
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 20px + 0.97vw, 32px);
}

.main-visual__right strong{
  background: #00335C;
  padding: 0 8px 2px;
}

.main-visual__right strong span{
  color: #FF8FAB;
  background: linear-gradient(90deg, var(--Secondary-Start, #FFD7A6) 0%, var(--on-Accent-2, #FF8FAB) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.main-visual__book-wrapper{
  text-align: center;
}
.main-visual__book-image{
  width: clamp(220px, 194px + 7.03vw, 278px);
  height: auto;
}

.cta-button-wrapper{
  width: 100%;
  animation: pulse-grow 2.5s ease-in-out infinite;
}

@keyframes pulse-grow {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

/* -------------------- screenshots carousel -------------------- */

.screenshots {
  background-color: #00335c;
  overflow: hidden;
  width: 100%;
  padding: 40px 0;
  margin-top: clamp(-280px, -20vw, -120px);
}

.screenshots__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  width: max-content;
  animation: scroll-carousel 36s linear infinite;
}

.screenshots__item {
  width: 220px;
  padding: 0 8px;
  flex-shrink: 0;
}

.screenshots__image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

@keyframes scroll-carousel {
  from { transform: translateX(0); }
  to { transform: translateX(-1320px); }
}

@media (max-width: 768px) {
  .screenshots {
    padding: 24px 0;
  }

  .screenshots__item {
    width: 140px;
    padding: 0 4px;
  }

  .screenshots__image {
    border-radius: 8px;
  }

  @keyframes scroll-carousel {
    from { transform: translateX(0); }
    to { transform: translateX(-840px); }
  }
}

/* -------------------- series-intro -------------------- */

.series-intro {
  background: #00335c;
  padding: 48px 20px 0;
  overflow: hidden;
}
.series-intro__container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}
.series-intro__title {font-size: clamp(22px, 6px + 4.5vw, 60px);line-height: 1.6;background: linear-gradient(135deg, #76ffd8, #64c6ff);-webkit-background-clip: text;-webkit-text-fill-color: transparent;background-clip: text;margin-bottom: 24px;margin-left: -5px;margin-right: -5px;}
.series-intro__description {

  font-weight: 400;
  font-size: 18px;
  line-height: 1.7;
  color: #FFFFFF;
  margin-bottom: 60px;
}
.series-intro__books {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
  position: relative;
}
.series-intro__lottie {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 560px;
  height: 560px;
  pointer-events: none;
  z-index: 0;
}
.series-intro__book-item {
  width: 120px;
  height: auto;
  position: relative;
  z-index: 1;
}
.series-intro__book-item--featured {
  width: 140px;
  transform: scale(1.15);
  filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.6));
}
.series-intro__book-image {
  width: 100%;
  height: auto;
  display: block;
}
.series-intro__info-box {
  background: transparent;
  border: 1px solid #fff;
  padding: 24px 32px;
  max-width: 980px;
  margin: 0 auto 40px;
  position: relative;
}
.series-intro__info-triangle {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 10px solid #FFFFFF;
}
.series-intro__info-text {
  text-align:left;
  font-weight: 800;font-size: 16px;line-height: 1.8;color: #FFFFFF;}

.app-integration {
  background: #FFFFFF;
  padding: 48px 20px 0;
  overflow: hidden;
}
.app-integration__container {
  max-width: 980px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 30px;
  align-items: center;
}
.app-integration__title {

  font-size: 60px;
  line-height: 72px;
  color: #04c3be;
  text-align: center;
}
.app-integration__content {
  max-width:980px;
  width:100%;
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: center;
}
.app-integration__text-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  justify-content: center;
}
.app-integration__text {

  font-weight: 400;
  font-size: 28px;
  line-height: 1.5;
  color: #00335c;
}
.app-integration__text--bold {
  font-weight: 700;
}
.app-integration__app-links {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: flex-end;
  width: 100%;
  margin-top: 20px;
}
.app-integration__app-icon {
  width: 110px;
  height: 110px;
  flex-shrink: 0;
}
.app-integration__badges {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 158px;
}
.app-integration__badge {
  width: 100%;
  height: auto;
  aspect-ratio: 264/78;
  object-fit: cover;
}
.app-integration__image {
  width: 396px;
  height: 449px;
  position: relative;
  flex-shrink: 0;
}
.app-integration__image-content {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.features {
  background: #04c3be;
  padding: 10px 16px 60px;
}
.features__container {
  max-width: 980px;
  margin: 0 auto;
  padding-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 80px;
  align-items: center;
}
.features__item {
  display: flex;
  flex-direction: column;
  gap: 32px;
  align-items: center;
  width: 100%;
}
.features__header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  width: 100%;
}
.features__badge {
  background: #FFFFFF;
  padding: 12px 30px;
  border-radius: 70px;

  font-weight: 900;
  font-size: 24px;
  line-height: normal;
  color: #04c3be;
  text-align: center;
}
.features__title {

  font-weight: 900;
  font-size: 56px;
  line-height: 72px;
  color: #FFFFFF;
  text-align: center;
}
.features__image {
  width: 760px;
  height: 460px;
  position: relative;
}
.features__image-content {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}
.features__content {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
  width: 100%;
}
.features__description {

  font-weight: 400;
  font-size: 24px;
  line-height: 1.5;
  color: #FFFFFF;
  width: 100%;
}
.features__description--bold {
  font-weight: 700;
}
.features__subtitle {

  font-weight: 900;
  font-size: 32px;
  line-height: 1.5;
  color: #FFFFFF;
  text-align: center;
}
.features__languages {
  max-width: 400px;
}
.features__languages-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}
.features__quiz-list {
  background: #FFFFFF;
  border-radius: 24px;
  padding: 32px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.features__quiz-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.features__quiz-header {
  display: flex;
  gap: 8px;
  align-items: center;
}
.features__quiz-number {
  background: #3b4d4c;
  width: 48px;
  height: 48px;
  border-radius: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;

  font-size: 32px;
  line-height: normal;
  color: #FFFFFF;
  text-align: center;
}
.features__quiz-title {

  font-weight: 700;
  font-size: 32px;
  line-height: 1.5;
  color: #3b4d4c;
}
.features__quiz-description {

  font-weight: 400;
  font-size: 18px;
  line-height: 1.5;
  color: #04c3be;
}
.features__download {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}
.features__download-image {
  width: 336px;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  pointer-events: none;
}
.features__download-badges {
  display: flex;
  gap: 16px;
  max-width: 100%;
}
.features__download-badge {
  flex: 1;
  aspect-ratio: 264/78;
  object-fit: cover;
  height: auto;
}

.pricing {
  position: relative;
  background: linear-gradient(102.083deg, rgb(174, 255, 232) 5.3315%, rgb(151, 217, 255) 88.762%);
  padding: 0 20px 0;
  color: #00335c;
  overflow: hidden;
}
.pricing__delimiter{
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  display: block;
}
.pricing__container {
  max-width: 980px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 60px;
  align-items: flex-start;
}
.pricing__header {
  display: flex;
  flex-direction: column;
  gap: 48px;
  align-items: center;
  width: 100%;
}
.pricing__title-wrapper {
  position: relative;
  text-align: center;
}
.pricing__title {font-size: 60px;line-height: 84px;letter-spacing: -4px;}

.pricing__title--highlight{
  background: url(assets/images/underLine.svg) no-repeat center bottom;
}

.pricing__title--highlight strong{
  font-size: 80px;
}
.pricing__book {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-bottom: 4px;
}
.pricing__book-lottie {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 1100px;
  height: 1100px;
  pointer-events: none;
  z-index: 0;
}
.pricing__book-image {
  width: 279px;
  height: 429px;
  object-fit: cover;
  pointer-events: none;
  position: relative;
  z-index: 1;
}
.comparison-wrapper{
  margin: auto;
}

.p-comparison {
  padding: 40px 0;
  margin: 0 auto;
  overflow: hidden;
}

.p-comparison__title{
  text-align: center;
  font-size: 60px;
  line-height: 72px;
  color: #00335c;
  font-weight: 900;
  margin: 0 auto;
}

.p-comparison__inner {
  display: flex;
  padding: 0 40px 20px 150px;
  gap: 40px;
  position: relative;
}

/* 各カラム（縦の塊） */
.p-comparison__column {
  flex-shrink: 0;
  width: 180px;
  border-radius: 20px;
  padding-bottom: 20px;
  /* デフォルトの列幅 */
  background-color: rgba(255, 255, 255, 0.4);
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

/* ラベルカラムの調整 */
.p-comparison__column--labels {
  width: 140px;
  background-color: transparent;
  position: absolute;
  left: 0;
  width: 100%;
  z-index: 0;
}

.p-comparison__column--labels .full-width{
  width: 100%;
  background: rgba(255, 255, 255, .6);
  border-radius: 20px;
  height: 100px;
  margin: 10px 0;
}

/* メイン商品カラム（強調） */
.p-comparison__column--main {
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 20px;
  box-shadow: 0 10px 16px rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 10;
  /* 他の列より手前へ */
  width: 200px;
  /* メインだけ少し太くする */
}

/* 頭の部分（画像など） */
.p-comparison__head {
  height: 160px;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.p-comparison__head img {
  width: 80px;
  height: auto;
}


.p-comparison__item.full-width span{
  width: 126px;
  display: block;
  font-size: 18px;
  color: #00335C;
  text-align: center;
}

/* 各セルの高さ（ここを固定することで横一行が揃う） */
.p-comparison__item {
  height: 120px;
  /* 全ての列で共通の高さを指定 */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 12px;
  padding: 0 10px;
  color: #333;
}

/* ラベル列だけは左寄せにする */
.p-comparison__column--labels .p-comparison__item {
  align-items: flex-start;
  text-align: left;
  font-weight: bold;
  border-bottom: none;
}

/* 価格セルの強調 */
.p-comparison__item--price {
  font-size: 20px;
  font-weight: bold;
  border-bottom: none;
}

.p-comparison__item--price-label {
  border-bottom: none;
}

/* アイコン */
.icon {
  width: 32px;
  height: auto;
  margin-bottom: 5px;
}

.faq {
  background: #00335c;
  padding: 120px 266px;
}
.faq__container {
  max-width: 980px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 30px;
  align-items: center;
}
.faq__title {

  font-size: 60px;
  line-height: 72px;
  color: #FFFFFF;
  text-align: center;
  width: 100%;
}
.faq__list {
  background: #FFFFFF;
  border-radius: 24px;
  padding: 16px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.faq__item {
  border-bottom: 1px solid #d8dbdb;
}
.faq__item:last-child {
  border-bottom: none;
}
.faq__item--open .faq__answer {
  max-height: 500px;
  opacity: 1;
  padding: 0 16px 24px;
}
.faq__question {
  display: flex;
  gap: 24px;
  align-items: center;
  padding: 24px 20px 24px 16px;
  cursor: pointer;
}
.faq__question-text {
  flex: 1;

  font-weight: 700;
  font-size: 24px;
  line-height: normal;
  color: #00335c;
}
.faq__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  font-size: 24px;
  line-height: 1;
  color: #00335c;
  display: flex;
  align-items: center;
  justify-content: center;
}
.faq__answer {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  padding: 0 16px;
  transition: max-height 0.4s ease, opacity 0.4s ease, padding 0.4s ease;
}
.faq__answer-text {

  font-weight: 400;
  font-size: 16px;
  line-height: normal;
  color: #47535d;
}

.footer {
  background: #111;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}
.footer__copyright {
  font-weight: 400;
  font-size: 14px;
  line-height: 1.5;
  color: #FFFFFF;
  text-align: center;
}

@media (max-width: 768px) {
  .header-content {
    height: auto;
  }
  .logo-badge {
    position: relative;
    top: 0;
    left: 0;
    height: auto;
    padding: 12px;
  }
  .logo-container {
    height: 36px;
    width: 150px;
  }
  .button-icon {
    width: 24px;
    height: 24px;
  }
}

@media (max-width: 1200px) {
  .series-intro {
    padding: 60px 20px 0;
  }
  .series-intro__description {
    font-size: 18px;
    line-height: 1.6;
  }
  .series-intro__book-item:nth-child(3),
      .series-intro__book-item:nth-child(8){
    display: none;
  }
  .series-intro__book-item--featured {
    width: 120px;
  }
  .app-integration {
    padding: 48px 20px 0;
  }
  .app-integration__content {
    flex-direction: column;
  }
  .app-integration__image {
    order: -1;
    width: 100%;
    max-width: 396px;
    height: auto;
  }
  .app-integration__app-links {
    justify-content: center;
  }
  .features__title {
    font-size: 40px;
    line-height: 1.4;
  }
  .features__image {
    width: 100%;
    max-width: 760px;
    height: auto;
  }
  .pricing {
    padding: 0 20px 0;
  }
  .pricing__title {
    font-size: 40px;
    line-height: 1.4;
  }
  .pricing__title--highlight strong{
    font-size: 54px;
  }
  .faq {
    padding: 60px 20px;
  }
  .faq__title {
    font-size: 40px;
    line-height: 1.4;
  }
}
@media (max-width: 768px) {
  /* main-visual responsive: 構造変更のみ */
  .main-visual__content {
    flex-direction: column;
  }
  .main-visual__message,
  .main-visual__submessage {
    text-align: center;
  }

  /* other sections */
  .series-intro {
    padding: 40px 16px 0;
  }
  .series-intro__description {
    margin-bottom: 40px;
  }
  .series-intro__books {
    flex-wrap: nowrap;
    justify-content: flex-start;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    margin-left: -16px;
    margin-right: -16px;
    padding: 0 16px;
  }
  .series-intro__books::-webkit-scrollbar {
    display: none;
  }
  .app-integration__title{
    font-size: 48px;
    line-height: 120%;
  }
  .app-integration__text{
    font-size: 18px;
  }
  .features__title {
    font-size: 32px;
    line-height: 1.3;
  }
  .features__description {
    font-size: 18px;
    line-height: 1.6;
  }
  .features__quiz-title {
    font-size: 24px;
  }
  .features__quiz-number{
    font-size:24px;
    width:36px;
    height:36px;
  }
  .features__quiz-description {
    font-size: 16px;
  }
  .features__download-badges {
    width: auto;
  }
  .features__download-badge {
    width: 170px;
    flex: none;
  }
  .pricing__title {
    font-size: 36px;
  }
    .pricing__title--highlight strong{
    font-size:54px;
  }
  .pricing__container{
    gap:30px;
  }

  .faq {
    padding: 40px 16px;
  }
  .faq__title {
    font-size: 32px;
  }
  .faq__question-text {
    font-size: 18px;
  }
  .faq__answer-text {
    font-size: 14px;
  }
}

/* -------------------- scroll reveal -------------------- */

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}


@media (max-width: 480px) {
  .header-content {
    /* flex-direction: column; */
    gap: 12px;
    /* align-items: stretch; */
  }

  .amazon-fixed-button{
    width: 60px;
    height: 60px;
  }
    .amazon-fixed-button img{
      width: 32px;
      height: 32px;
    }
    .amazon-fixed-button__text{
      display: none;
    }
  .circle-blur,
.circle-blur-2{
  max-width:90%;
}
  .main-visual{
    font-size: 18px;
  }
  .main-visual__book-image{
    width: 200px;
  }
  .main-visual__price-badge{
    width: 100px;
  }
  .main-visual__content{
      gap: 16px;
    }
  .main-visual__title{
    font-size: 58px;
    line-height:120%;
  }
  .series-intro__title{
    font-size:40px;
    line-height:120%;
  }
    .p-comparison__title{
      font-size: 32px;
      line-height: 1.4;
    }
    .comparison-wrapper {
      width: 100vw;
      overflow-x: scroll;
      -webkit-overflow-scrolling: touch;
    }
    .p-comparison {
      transform: scale(0.75);
      transform-origin: top left;
      margin-bottom: -75%;
      width: fit-content;
    }
    .p-comparison__inner {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    }
    .features__subtitle{
      font-size: 24px;
    }
}