/* =============================================
ピアノレッスン　ランディングページ：共通クラス
============================================= */

.piano {
  --piano-black: #282929;
  --piano-dark-blue: #11313f;
  --piano-dark-green: #003240;
  --piano-white: #fff;
  --piano-pale-blue: #f0f7fa;
  --piano-light-blue: #22bee6;
  --piano-blue: #0097bf;
  --piano-yellow: #eeca21;
  --piano-light-yellow: #f6e490;
  --piano-pink: #b24265;
  --piano-orange: #fa7757;
  letter-spacing: 0.03em;
  color: var(--piano-black);
}

.l-piano-inner {
  max-width: calc(1090px + 30px * 2);
  width: 100%;
  padding-inline: 30px;
  margin: 0 auto;
}

@media (max-width: 767px) {
  .l-piano-inner {
    padding-inline: 15px;
    max-width: 600px;
  }
}

/* セクション上下の余白 */
.layout-piano {
  padding-top: 90px;
  padding-bottom: 90px;
}

@media (max-width: 767px) {
  .layout-piano {
    padding-top: 45px;
    padding-bottom: 45px;
  }
}

/* モバイル表示 */
.u-mobile {
  display: none;
}

@media (max-width: 767px) {
  .u-mobile {
    display: block;
  }
}

/* デスクトップ表示 */
.u-desktop {
  display: block;
}

@media (max-width: 767px) {
  .u-desktop {
    display: none;
  }
}

/* ハイライト */
.piano-highlight {
  font-weight: 700;
  background: linear-gradient(
    transparent 0%,
    transparent 60%,
    #fbeca8 60%,
    #fbeca8 100%
  );
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

/* =============================================
ピアノレッスン　ランディングページ：共通パーツ
============================================= */
/* セクションタイトル */
.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--piano-blue);
  letter-spacing: 0.03em;
  line-height: 1.5;
}

.section-title--white {
  color: var(--piano-white);
}

.section-title__span {
  display: inline-block;
  position: relative;
}

.section-title__span::before {
  content: "";
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: -42px;
  width: 28px;
  aspect-ratio: 28 / 49;
  background-image: url(../images/piano/border_left.webp);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.section-title__span::after {
  content: "";
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: -42px;
  width: 28px;
  aspect-ratio: 28 / 49;
  background-image: url(../images/piano/border_right.webp);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.section-title__span--wide::before {
  left: -66px;
}

.section-title__span--wide::after {
  right: -66px;
}

.section-title__span--white::before {
  background-image: url(../images/piano/border_left_white.webp);
  left: -85px;
}

.section-title__span--white::after {
  background-image: url(../images/piano/border_right_white.webp);
  right: -85px;
}

.section-title__sub {
  font-size: 18px;
  color: var(--piano-dark-blue);
  line-height: 1.4;
  letter-spacing: 0.03em;
  display: block;
}

@media (max-width: 767px) {
  .section-title {
    font-size: 24px;
    line-height: 1.34;
    letter-spacing: 0;
  }

  .section-title--white {
    font-size: 30px;
  }

  .section-title__span::before {
    top: 52%;
    left: -45px;
    width: 24.5px;
    aspect-ratio: 49 / 89;
    background-image: url(../images/piano/border_left_sp.webp);
  }

  .section-title__span::after {
    top: 52%;
    right: -45px;
    width: 24.5px;
    aspect-ratio: 49 / 89;
    background-image: url(../images/piano/border_right_sp.webp);
  }

  .section-title__span--wide::before {
    left: -45px;
  }

  .section-title__span--wide::after {
    right: -45px;
  }

  .section-title__span--white::before {
    background-image: url(../images/piano/border_left_white_sp.webp);
  }

  .section-title__span--white::after {
    background-image: url(../images/piano/border_right_white_sp.webp);
  }

  .section-title__span--point::before {
    top: 72%;
    left: 0;
  }

  .section-title__span--point::after {
    top: 72%;
    right: 0;
  }

  .section-title__span--preparer::before {
    left: -35px;
  }

  .section-title__span--preparer::after {
    right: -35px;
  }

  .section-title__sub {
    letter-spacing: 0;
    line-height: 1.34;
  }

  .section-title__sub--point {
    font-size: 14px;
  }
}

/* ボタン */
.piano-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    180deg,
    #fa7757 0%,
    #fa7757 50%,
    #f56947 50%,
    #f56947 100%
  );
  box-shadow: 0px 6px 10px rgba(222, 94, 64, 0.3);
  border-radius: 9999px;
  padding: 20px 107.5px 20px 77.5px;
  width: fit-content;
  position: relative;
  transition: opacity 0.3s ease-in-out;
}

.piano-button--mv {
  padding: 24px 110px 26px 70px;
}

.piano-button::after {
  content: "";
  position: absolute;
  background-image: url(../images/piano/arrow_cta.svg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  width: 42px;
  aspect-ratio: 1 / 1;
  top: 50%;
  transform: translateY(-50%);
  right: 24px;
  transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
}

.piano-button--mv::after {
  width: 48px;
}

.piano-button__text {
  display: block;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--piano-white);
  position: relative;
}

.piano-button__text--mv {
  font-size: 32px;
}

@media (hover: hover) {
  .piano-button:hover {
    opacity: 0.9;
  }

  .piano-button:hover::after {
    transform: translate(5px, -50%);
  }
}

@media (max-width: 767px) {
  .piano-button {
    box-shadow: 0px 3px 7px rgba(222, 94, 64, 0.3);
    padding: 16px 63px 16px 41px;
  }

  .piano-button__text {
    font-size: 18px;
    white-space: nowrap;
  }

  .piano-button::after {
    width: 26px;
    right: 14px;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　MVセクション
============================================= */
.piano-mv {
  padding-top: 60px;
  position: relative;
  z-index: 1;
}

.piano-mv::before {
  content: "";
  position: absolute;
  top: 100px;
  left: calc(50% - 794px);
  width: 481px;
  aspect-ratio: 481 / 544.23;
  background-image: url(../images/piano/mv_img_left.webp);
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}

.piano-mv::after {
  content: "";
  position: absolute;
  top: 75px;
  right: calc(50% - 780px);
  width: 496px;
  aspect-ratio: 496 / 568;
  background-image: url(../images/piano/mv_img_right.webp);
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  z-index: -1;
}

.piano-mv__inner {
  max-width: calc(810px + 30px * 2);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.piano-mv__inner::before {
  content: "";
  position: absolute;
  top: -38px;
  left: 50%;
  transform: translateX(-50%);
  width: 93%;
  aspect-ratio: 405 / 373;
  background-image: url(../images/piano/piano_bg.svg);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: -1;
}

.piano-mv__content {
  width: calc(502 / 810 * 100%);
}

.piano-mv__title-sub {
  width: 107%;
  transform: translateX(-5px);
  aspect-ratio: 537 / 60;
}

.piano-mv__title-sub img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.piano-mv__title {
  width: 100%;
  aspect-ratio: 502 / 138;
  margin-top: 12px;
}

.piano-mv__title img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.piano-mv__lead {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.75;
  letter-spacing: 0.03em;
  color: var(--piano-dark-blue);
  text-align: center;
  margin-top: 30px;
}

.piano-mv__items {
  display: flex;
  flex-direction: column;
  gap: 11px;
  background: var(--piano-white);
  border-radius: 12px;
  padding: 25px 40px 30px;
  margin-top: 14px;
  filter: drop-shadow(0px 14px 40px rgba(0, 151, 191, 0.1));
}

.piano-mv__item {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0;
  color: var(--piano-dark-blue);
  padding-left: 39px;
  padding-bottom: 6px;
  position: relative;
}

.piano-mv__item::before {
  content: "";
  position: absolute;
  top: 44%;
  transform: translateY(-50%);
  left: 0;
  width: 24px;
  aspect-ratio: 1 / 1;
  background-image: url(../images/piano/circle-check.svg);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.piano-mv__item::after {
  content: "";
  position: absolute;
  background-image: linear-gradient(
    to right,
    #91a8ae,
    #91a8ae 6px,
    transparent 6px,
    transparent 4px
  );
  background-repeat: repeat-x;
  background-position: left bottom;
  background-size: 12px 4px;
  width: 100%;
  height: 1px;
  bottom: 0;
  left: 0;
}

.piano-mv__item-span {
  color: var(--piano-pink);
}

.piano-mv__button-block {
  margin-top: 30px;
}

.piano-mv__note {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--piano-black);
  margin-top: 12px;
}

@media (max-width: 767px) {
  .piano-mv {
    padding-top: 27px;
    padding-bottom: 300px;
  }

  .piano-mv::before {
    top: 168px;
    left: auto;
    right: -55px;
    width: 152.5px;
    aspect-ratio: 1 / 1;
    background-image: url(../images/piano/mv_img_top_sp.webp);
  }

  .piano-mv::after {
    top: auto;
    bottom: 5px;
    left: 48%;
    transform: translateX(-50%);
    right: auto;
    width: clamp(411px, 109vw, 600px);
    aspect-ratio: 411 / 262;
    background-image: url(../images/piano/mv_img_bottom_sp.webp);
  }

  .piano-mv__inner::before {
    content: "";
    position: absolute;
    width: 130%;
    top: 170px;
    left: 45%;
  }

  .piano-mv__content {
    width: 100%;
  }

  .piano-mv__title-sub {
    width: 103%;
  }

  .piano-mv__title {
    margin-top: -5px;
  }

  .piano-mv__lead {
    font-size: 15px;
    line-height: 1.66;
    letter-spacing: 0.02em;
    margin-top: 20px;
  }

  .piano-mv__items {
    gap: 9px;
    border-radius: 9px;
    padding: 15px 32.5px 20px;
    margin-top: 17px;
    filter: drop-shadow(0px 8px 40px rgba(0, 151, 191, 0.1));
  }

  .piano-mv__item {
    font-size: 15px;
    padding-left: 28px;
    padding-bottom: 3.5px;
  }

  .piano-mv__item::before {
    width: 18px;
  }

  .piano-mv__item::after {
    background-image: linear-gradient(
      to right,
      #91a8ae,
      #91a8ae 6px,
      transparent 6px,
      transparent 4px
    );
    background-size: 12px 4px;
  }

  .piano-mv__button-block {
    margin-top: 20px;
  }

  .piano-mv__note {
    font-size: 13px;
    margin-top: 6px;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　ABOUTセクション
============================================= */

.piano-about {
  background-color: var(--piano-pale-blue);
  padding-top: 76px;
  padding-bottom: 20px;
  position: relative;
}

.piano-about::before {
  content: "";
  position: absolute;
  top: calc(-195 / 1440 * 100vw);
  left: 0;
  width: 100%;
  aspect-ratio: 1440 / 198;
  background-image: url(../images/piano/about_bg.svg);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: -1;
}

.piano-about__inner {
  max-width: calc(1132px + 30px * 2);
  position: relative;
  z-index: 1;
}

.piano-about__inner::before {
  content: "";
  position: absolute;
  top: 150px;
  left: -178px;
  width: 348px;
  aspect-ratio: 348 / 467.54;
  background-image: url(../images/piano/about_bg_left.webp);
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  z-index: -1;
}

.piano-about__inner::after {
  content: "";
  position: absolute;
  top: -95px;
  right: -135px;
  width: 277px;
  aspect-ratio: 277 / 285.68;
  background-image: url(../images/piano/about_bg_right.webp);
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  z-index: -1;
}

.piano-about__content {
  display: flex;
  align-items: flex-end;
  gap: 46px;
  margin-top: 56px;
  transform: translateX(22px);
}

.piano-about__text-block {
  width: calc(546 / 1132 * 100%);
}

.piano-about__content-title {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--piano-dark-green);
  text-align: left;
  margin-bottom: 0;
}

.piano-about__text {
  font-size: 16px;
  font-weight: 500;
  line-height: 2;
  color: var(--piano-dark-green);
  margin-top: 30px;
}

.piano-about__text + .piano-about__text {
  margin-top: 20px;
}

.piano-about__text:first-child {
  margin-top: 30px;
}

.piano-about__image {
  width: calc(540 / 1132 * 100%);
  border-radius: 25px;
  aspect-ratio: 540 / 345;
  overflow: hidden;
}

.piano-about__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 767px) {
  .piano-about {
    padding-top: 24px;
    padding-bottom: 16px;
  }

  .piano-about__inner::before {
    display: none;
  }

  .piano-about__inner::after {
    display: none;
  }

  .piano-about__content {
    flex-direction: column;
    gap: 30px;
    margin-top: 30px;
    transform: translateX(0);
  }

  .piano-about__text-block {
    width: 100%;
  }

  .piano-about__content-title {
    font-size: 18px;
  }

  .piano-about__text {
    margin-top: 20px;
    line-height: 1.8;
  }

  .piano-about__text + .piano-about__text {
    margin-top: 12px;
  }

  .piano-about__text:first-child {
    margin-top: 20px;
  }

  .piano-about__image {
    width: 100%;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　FEATUREセクション
============================================= */

.piano-feature {
  background-color: var(--piano-pale-blue);
  border-radius: 0 0 80px 80px;
  padding-bottom: 100px;
}

.piano-feature__items {
  display: flex;
  flex-direction: column;
  gap: 54px;
  margin-top: 50px;
}

.piano-feature__item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 17px;
  background: var(--piano-white);
  border: 3px solid var(--piano-blue);
  border-radius: 20px;
  padding: 38px 37px 38px 62px;
}

.piano-feature__item:nth-child(even) {
  flex-direction: row-reverse;
  padding: 41px 66px 40px 41px;
}

.piano-feature__text-block {
  width: calc(569 / 985 * 100%);
  position: relative;
}

.piano-feature__number {
  font-size: 47px;
  font-weight: 700;
  font-family: "Roboto", sans-serif;
  line-height: 1;
  color: var(--piano-white);
  letter-spacing: -0.03em;
  position: absolute;
  top: -83px;
  left: -70px;
  width: 86px;
  aspect-ratio: 1 / 1;
  background-color: var(--piano-light-blue);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 4px;
  z-index: 1;
}

.piano-feature__number-span {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: block;
}

.piano-feature__number::after {
  content: "";
  position: absolute;
  bottom: 4px;
  right: 0;
  width: 20px;
  aspect-ratio: 20 / 18;
  mask-image: url(../images/piano/triangle_blue.svg);
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  background-color: var(--piano-light-blue);
  z-index: -1;
}

.piano-feature__item-title {
  font-size: 29px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--piano-blue);
  text-align: initial;
  padding-inline: 8px;
  padding-bottom: 20px;
  margin-bottom: 0;
  width: fit-content;
  position: relative;
}

.piano-feature__item-title::after {
  content: "";
  position: absolute;
  background-image: radial-gradient(circle, #98c2d2 2px, transparent 2px);
  background-position: left bottom;
  background-repeat: repeat-x;
  background-size: 12px 4px;
  width: 100%;
  height: 4px;
  bottom: 0;
  left: 0;
}

.piano-feature__item-text {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--piano-dark-blue);
  margin-top: 20px;
}

.piano-feature__item-image {
  width: calc(399 / 985 * 100%);
  aspect-ratio: 399 / 240;
  overflow: hidden;
}

.piano-feature__item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 767px) {
  .piano-feature {
    border-radius: 0 0 30px 30px;
    padding-bottom: 44px;
  }

  .piano-feature__items {
    gap: 47px;
    margin-top: 50px;
  }

  .piano-feature__item {
    flex-direction: column;
    gap: 9px;
    border: 2px solid var(--piano-blue);
    border-radius: 12px;
    padding: 30px 20px 23px;
  }

  .piano-feature__item:nth-child(even) {
    flex-direction: column;
    padding: 30px 22px;
  }

  .piano-feature__text-block {
    width: 100%;
  }

  .piano-feature__number {
    font-size: 35px;
    top: -68px;
    left: -28px;
    width: 64.6px;
  }

  .piano-feature__number-span {
    font-size: 12px;
  }

  .piano-feature__item-title {
    font-size: 20px;
    padding-inline: 0;
    padding-bottom: 14px;
  }

  .piano-feature__item-text {
    margin-top: 16px;
  }

  .piano-feature__item-image {
    width: 100%;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　TEACHERセクション
============================================= */

.piano-teacher__items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 24px;
}

.piano-teacher__item {
  border: 2px solid var(--piano-blue);
  background-color: var(--piano-blue);
  border-radius: 20px;
  overflow: hidden;
}

.piano-teacher__item:nth-child(2) {
  transform: translateY(48px);
}

.piano-teacher__image {
  width: 100%;
  aspect-ratio: 337 / 205;
}

.piano-teacher__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.piano-teacher__text {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.03em;
  color: var(--piano-white);
  padding: 7px 20px 10px;
  text-align: center;
}

@media (max-width: 767px) {
  .piano-teacher__items {
    grid-template-columns: repeat(1, 1fr);
    gap: 25px;
    margin-top: 35px;
  }

  .piano-teacher__item {
    border-radius: 12px;
  }

  .piano-teacher__item:nth-child(2) {
    transform: translateY(0);
  }

  .piano-teacher__text {
    font-size: 20px;
    padding: 6px 20px 7px;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　PROFILEセクション
============================================= */

.piano-profile {
  padding-top: 45px;
}

.piano-profile__inner {
  max-width: calc(1200px + 30px * 2);
}

.piano-profile__items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
  margin-top: 60px;
}

.piano-profile__item {
  background-color: var(--piano-pale-blue);
  border-radius: 12px;
  padding: 28px 30px 32px;
  display: grid;
  grid-template-rows: subgrid;
  grid-row: span 3;
  gap: 0;
}

.piano-profile__head {
  display: flex;
  align-items: center;
  gap: 19px;
}

.piano-profile__profile-image {
  width: calc(210 / 516 * 100%);
  aspect-ratio: 210 / 145;
  overflow: hidden;
}

.piano-profile__profile-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.piano-profile__name {
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--piano-blue);
  width: calc(287 / 516 * 100%);
}

.piano-profile__name-main {
  font-size: 27px;
  line-height: 1.8;
}

.piano-profile__name-span {
  font-size: 20px;
}

.piano-profile__name-sub {
  font-size: 18px;
  line-height: 1.6;
  margin-top: 4px;
}

.piano-profile__text {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--piano-dark-blue);
  margin-top: 14px;
}

.piano-profile__play-image {
  width: 100%;
  aspect-ratio: 516 / 280;
  overflow: hidden;
  margin-top: 20px;
}

.piano-profile__play-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 767px) {
  .piano-profile {
    padding-top: 0;
  }

  .piano-profile__inner {
    max-width: 600px;
  }

  .piano-profile__items {
    grid-template-columns: repeat(1, 1fr);
    gap: 23px;
    margin-top: 35px;
  }

  .piano-profile__item {
    padding: 20px 15px;
  }

  .piano-profile__head {
    flex-direction: column;
    gap: 10px;
  }

  .piano-profile__profile-image {
    width: calc(240 / 315 * 100%);
    aspect-ratio: 240 / 165;
  }

  .piano-profile__name {
    width: 100%;
  }

  .piano-profile__name-main {
    font-size: 20px;
  }

  .piano-profile__name-span {
    font-size: 16px;
  }

  .piano-profile__name-sub {
    font-size: 16px;
    margin-top: 1px;
    word-break: keep-all;
  }

  .piano-profile__play-image {
    margin-top: 16px;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　POINTセクション
============================================= */

.piano-point {
  background-color: var(--piano-pale-blue);
  border-radius: 80px;
}

.piano-point__lead {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--piano-dark-blue);
  text-align: center;
  margin-top: 25px;
}

.piano-point__highlight {
  font-weight: 700;
  background: linear-gradient(
    transparent 0%,
    transparent 50%,
    #fbeca8 50%,
    #fbeca8 100%
  );
}

.piano-point__items {
  display: flex;
  flex-direction: column;
  gap: 47px;
  margin-top: 60px;
}

.piano-point__item {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 57px;
  background: var(--piano-white);
  border: 3px solid var(--piano-blue);
  border-radius: 20px;
  padding: 42px 50px 42px 52px;
}

.piano-point__item:nth-child(even) {
  flex-direction: row-reverse;
}

.piano-point__text-block {
  width: calc(525 / 982 * 100%);
  margin-top: 15px;
  position: relative;
}

.piano-point__number {
  font-size: 47px;
  font-weight: 700;
  font-family: "Roboto", sans-serif;
  line-height: 1;
  color: var(--piano-white);
  letter-spacing: -0.03em;
  position: absolute;
  top: -88px;
  left: -80px;
  width: 86px;
  aspect-ratio: 1 / 1;
  background-color: var(--piano-light-blue);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 4px;
  z-index: 1;
}

.piano-point__item:nth-child(even) .piano-point__number {
  left: -40px;
}

.piano-point__number-span {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: block;
}

.piano-point__number::after {
  content: "";
  position: absolute;
  bottom: 5px;
  right: 0;
  width: 20px;
  aspect-ratio: 20 / 18;
  mask-image: url(../images/piano/triangle_blue.svg);
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  background-color: var(--piano-light-blue);
  z-index: -1;
}

.piano-point__item-title {
  font-size: 29px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--piano-blue);
  text-align: initial;
  padding-inline: 8px;
  padding-bottom: 15px;
  margin-bottom: 0;
  width: fit-content;
  position: relative;
  white-space: nowrap;
}

.piano-point__item-title::after {
  content: "";
  position: absolute;
  background-image: radial-gradient(circle, #98c2d2 2px, transparent 2px);
  background-position: left bottom;
  background-repeat: repeat-x;
  background-size: 12px 4px;
  width: 100%;
  height: 4px;
  bottom: 0;
  left: 0;
}

.piano-point__item-text {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--piano-dark-blue);
  margin-top: 20px;
}

.piano-point__item-image {
  width: calc(400 / 982 * 100%);
  aspect-ratio: 400 / 240;
  border-radius: 10px;
  overflow: hidden;
}

.piano-point__item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 767px) {
  .piano-point {
    border-radius: 20px;
  }

  .piano-point__lead {
    text-align: left;
    padding-inline: 5px;
    margin-top: 24px;
  }

  .piano-point__items {
    gap: 50px;
    margin-top: 58px;
  }

  .piano-point__item {
    flex-direction: column;
    gap: 9px;
    border: 2px solid var(--piano-blue);
    border-radius: 12px;
    padding: 14px 20px 24px;
  }

  .piano-point__item:nth-child(even) {
    flex-direction: column;
    padding: 14px 20px 24px;
  }

  .piano-point__text-block {
    width: 100%;
  }

  .piano-point__number {
    font-size: 35px;
    top: -68px;
    left: -28px;
    width: 64.6px;
  }

  .piano-point__item:nth-child(even) .piano-point__number {
    left: -28px;
  }

  .piano-point__number-span {
    font-size: 12px;
  }

  .piano-point__item-title {
    font-size: 20px;
    padding-inline: 0;
    padding-bottom: 13px;
    white-space: normal;
  }

  .piano-point__item-image {
    width: 100%;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　PREPARERセクション
============================================= */

.piano-preparer {
  padding-top: 80px;
  padding-bottom: 0;
}

.piano-preparer__content {
  margin-top: 50px;
  padding: 75px 90px;
  background: var(--piano-pale-blue);
  border-radius: 20px;
  max-width: 1090px;
}

.piano-preparer__content-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 50px;
}

.piano-preparer__content-item {
  background: var(--piano-blue);
  border: 3px solid var(--piano-blue);
  border-radius: 24px;
  overflow: hidden;
  display: grid;
  gap: 0;
  grid-template-rows: subgrid;
  grid-row: span 2;
}

.piano-preparer__content-image {
  aspect-ratio: 430 / 230;
}

.piano-preparer__content-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.piano-preparer__content-text-block {
  padding: 8px 10px 10px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.03em;
  color: var(--piano-white);
  text-align: center;
  display: grid;
  place-items: center;
}

.piano-preparer__content-text {
  font-size: 27px;
}

.piano-preparer__content-note {
  font-size: 15px;
  margin-top: 0;
}

.piano-preparer__content-span {
  font-size: 20px;
}

.piano-preparer__flex {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-top: 55px;
}

.piano-preparer__flex-text-block {
  width: calc(440 / 910 * 100%);
}

.piano-preparer__flex-title {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.65;
  letter-spacing: 0;
  color: var(--piano-blue);
  padding-bottom: 16px;
  padding-inline: 5px;
  width: fit-content;
  position: relative;
}

.piano-preparer__flex-title::after {
  content: "";
  position: absolute;
  background-image: radial-gradient(circle, #98c2d2 2px, transparent 2px);
  background-position: left bottom;
  background-repeat: repeat-x;
  background-size: 12px 4px;
  width: 100%;
  height: 4px;
  bottom: 0;
  left: 0;
}

.piano-preparer__flex-text {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--piano-dark-blue);
  margin-top: 22px;
}

.piano-preparer__flex-image {
  width: calc(430 / 910 * 100%);
  aspect-ratio: 430 / 255;
  border-radius: 10px;
  overflow: hidden;
}

.piano-preparer__flex-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 767px) {
  .piano-preparer {
    padding-top: 40px;
  }

  .piano-preparer__content {
    margin-top: 35px;
    max-width: 100%;
    padding: 45px 15px;
  }

  .piano-preparer__content-items {
    grid-template-columns: repeat(1, 1fr);
    gap: 25px;
  }

  .piano-preparer__content-item {
    border: 2.4px solid var(--piano-blue);
    border-radius: 12px;
  }

  .piano-preparer__content-text-block {
    padding: 6.5px 10px 8.5px;
  }

  .piano-preparer__content-text {
    font-size: 20px;
  }

  .piano-preparer__content-note {
    font-size: 14px;
  }

  .piano-preparer__content-span {
    font-size: 16px;
  }

  .piano-preparer__flex {
    margin-top: 32px;
    flex-direction: column;
    gap: 20px;
  }

  .piano-preparer__flex-text-block {
    width: 100%;
  }

  .piano-preparer__flex-title {
    font-size: 20px;
    padding-inline: 10px;
    padding-bottom: 20px;
  }

  .piano-preparer__flex-text {
    margin-top: 12px;
  }

  .piano-preparer__flex-image {
    width: 100%;
    aspect-ratio: 345 / 205;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　LESSONセクション
============================================= */

.piano-lesson__inner {
  max-width: calc(670px + 30px * 2);
}

.piano-lesson__content {
  background: var(--piano-pale-blue);
  border-radius: 12px;
  padding: 35px;
  margin-top: 60px;
}

.piano-lesson__content-video {
  aspect-ratio: 600 / 346;
  background: var(--piano-white);
}

.piano-lesson__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.piano-lesson__tag {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.03em;
  color: var(--piano-white);
  background: #23bee6;
  border-radius: 9999px;
  padding: 1px 20px 3px;
  white-space: nowrap;
  margin-top: 0;
}

@media (max-width: 767px) {
  .piano-lesson__content {
    border-radius: 10px;
    padding: 20px 15px;
    margin-top: 35px;
  }

  .piano-lesson__content-video {
    aspect-ratio: 315 / 190;
  }

  .piano-lesson__tags {
    gap: 7px;
    margin-top: 13px;
  }

  .piano-lesson__tag {
    font-size: 16px;
    padding: 1px 12px 1px;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　PRICEセクション
============================================= */

.piano-price {
  background: var(--piano-blue);
  padding-top: 70px;
}

.piano-price__inner {
  max-width: calc(980px + 30px * 2);
}

.piano-price__content {
  margin-top: 30px;
  background: var(--piano-white);
  padding: 40px 70px 36px;
  border-radius: 30px;
}

.piano-price__price-block {
  text-align: center;
  padding-block: 40px;
  display: grid;
  place-items: center;
  position: relative;
}

.piano-price__price-block::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 14px;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent 0 7px,
    #ecce00 7px 14px
  );
  background-repeat: no-repeat;
  background-size: 100% 14px;
}

.piano-price__price-block::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 14px;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent 0 7px,
    #ecce00 7px 14px
  );
  background-repeat: no-repeat;
  background-size: 100% 14px;
}

.piano-price__price-text {
  font-size: 23px;
  font-weight: 700;
  line-height: 1.7;
  letter-spacing: 0.03em;
  position: relative;
  z-index: 1;
  width: fit-content;
}

.piano-price__price-text::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 13px;
  background: rgba(235, 32, 95, 0.2);
  z-index: -1;
}

.piano-price__price-main {
  font-weight: 700;
  color: var(--piano-dark-blue);
  line-height: 1.2;
  letter-spacing: 0.03em;
  margin-top: 9px;
  display: flex;
  align-items: baseline;
}

.piano-price__price-main-text {
  font-size: 36px;
}

.piano-price__price-main-number {
  font-size: 60px;
  font-family: "Roboto", sans-serif;
  letter-spacing: -0.01em;
  margin-left: 40px;
}

.piano-price__price-main-en {
  font-size: 36px;
  margin-left: 3.5px;
}

.piano-price__price-main-note {
  font-size: 18px;
}

.piano-price__price-ribbon {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.03em;
  color: var(--piano-white);
  background: #eb205f;
  width: 268px;
  aspect-ratio: 268 / 54;
  display: grid;
  place-items: center;
  clip-path: polygon(0 0, 100% 0, 94% 50%, 100% 100%, 0 100%, 6% 50%);
  margin-top: 11px;
}

.piano-price__price-ribbon-note {
  font-size: 13px;
  line-height: 1.3;
  display: block;
}

.piano-price__price-items {
  margin-top: 16px;
}

.piano-price__price-item {
  font-size: 14px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--piano-dark-blue);
}

@media (max-width: 767px) {
  .piano-price {
    padding-top: 45px;
  }

  .piano-price__content {
    padding: 34px 12.5px 30px;
    border-radius: 15px;
  }

  .piano-price__price-block {
    padding-top: 25px;
    padding-bottom: 30px;
  }

  .piano-price__price-block::before {
    height: 8px;
    background-size: 100% 8px;
  }

  .piano-price__price-block::after {
    height: 8px;
    background-size: 100% 8px;
  }

  .piano-price__price-text {
    font-size: 20px;
  }

  .piano-price__price-main-text {
    font-size: 28px;
  }

  .piano-price__price-main-number {
    font-size: 48px;
    margin-left: 14px;
  }

  .piano-price__price-main-en {
    font-size: 28px;
  }

  .piano-price__price-main-note {
    font-size: 16px;
  }

  .piano-price__price-ribbon {
    font-size: 18px;
    width: 264px;
    aspect-ratio: 263.78 / 48;
  }

  .piano-price__price-ribbon-note {
    font-size: 12px;
  }

  .piano-price__price-items {
    margin-top: 16px;
  }

  .piano-price__price-item {
    font-size: 12px;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　FLOWセクション
============================================= */

.piano-flow {
  background: var(--piano-pale-blue);
}

.piano-flow__content {
  margin-top: 70px;
  display: grid;
  place-items: center;
}

.piano-flow__items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 53.5px;
}

.piano-flow__item {
  position: relative;
  display: grid;
  grid-template-rows: subgrid;
  grid-row: span 3;
  gap: 0;
  filter: drop-shadow(0 2px 15px rgba(0, 151, 191, 0.1));
}

.piano-flow__item::after {
  content: "";
  position: absolute;
  top: 28%;
  right: -38px;
  transform: translateY(-50%);
  width: 17px;
  aspect-ratio: 2 / 3;
  mask-image: url(../images/piano/arrow_right.svg);
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
  background-color: var(--piano-blue);
}

.piano-flow__item:last-child::after {
  display: none;
}

.piano-flow__number {
  font-size: 47px;
  font-weight: 700;
  font-family: "Roboto", sans-serif;
  line-height: 1;
  color: var(--piano-white);
  letter-spacing: -0.03em;
  position: absolute;
  top: -24px;
  left: -24px;
  width: 86px;
  aspect-ratio: 1 / 1;
  background-color: var(--piano-blue);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 4px;
}

.piano-flow__number-span {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: block;
}

.piano-flow__number::after {
  content: "";
  position: absolute;
  bottom: 5px;
  right: 0;
  width: 20px;
  aspect-ratio: 20 / 18;
  mask-image: url(../images/piano/triangle_blue.svg);
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  background-color: var(--piano-blue);
}

.piano-flow__image {
  width: 100%;
  aspect-ratio: 327 / 185;
  border-radius: 16px 16px 0 0;
  overflow: hidden;
}

.piano-flow__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.piano-flow__text-block {
  padding: 14px 20px 26px;
  border-radius: 0 0 16px 16px;
  background: var(--piano-white);
}

.piano-flow__item-title {
  font-size: 25px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--piano-blue);
  margin-bottom: 0;
}

.piano-flow__text {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--piano-dark-blue);
  margin-top: 10px;
}

.piano-flow__text-note {
  font-size: 14px;
  display: block;
  margin-top: 12px;
}

.piano-flow__button-block {
  margin-top: 32px;
}

@media (max-width: 767px) {
  .piano-flow__inner {
    padding-inline: 15px;
  }

  .piano-flow__content {
    margin-top: 55px;
  }

  .piano-flow__items {
    grid-template-columns: repeat(1, 1fr);
    gap: 40px;
    padding-inline: 9px;
  }

  .piano-flow__item::after {
    content: "";
    position: absolute;
    width: 20px;
    top: auto;
    bottom: -25px;
    left: 50%;
    right: auto;
    transform: translateX(-50%) rotate(90deg);
  }

  .piano-flow__number {
    font-size: 35px;
    top: -30px;
    left: -8px;
    width: 64.6px;
  }

  .piano-flow__number-span {
    font-size: 12px;
  }

  .piano-flow__item-title {
    font-size: 22px;
  }

  .piano-flow__button-block {
    margin-top: 18px;
  }
}

/* =============================================
ピアノレッスン　ランディングページ　：　FAQセクション
============================================= */

.piano-faq__inner {
  max-width: calc(980px + 30px * 2);
}

.piano-faq__content {
  margin-top: 70px;
}

.piano-faq__item {
  background-color: var(--piano-blue);
  border-radius: 13px;
  padding: 22px 25px;
}

.piano-faq__item + .piano-faq__item {
  margin-top: 24px;
}

.piano-faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.piano-faq__question::-webkit-details-marker {
  display: none;
}

@media (hover: hover) {
  .piano-faq__question:hover {
    cursor: pointer;
  }
}

.piano-faq__question.is-opened {
  padding-bottom: 21px;
}

.piano-faq__question-left {
  display: flex;
  align-items: baseline;
  gap: 15px;
  width: calc(900 / 925 * 100%);
}

.piano-faq__question-span {
  font-size: 30px;
  font-weight: 700;
  font-family: "Roboto", sans-serif;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--piano-white);
}

.piano-faq__question-text {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--piano-white);
}

.piano-faq__question-btn {
  mask-image: url(../images/piano/arrow_down.svg);
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  background-color: var(--piano-white);
  width: 27px;
  aspect-ratio: 27 / 17;
  transition: rotate 0.2s ease;
}

.piano-faq__question-btn.is-opened {
  rotate: 180deg;
}

.piano-faq__answer {
  overflow: hidden;
}

.piano-faq__answer-inner {
  background: var(--piano-white);
  border-radius: 10px;
  padding: 14px 38px 22px 23px;
}

.piano-faq__answer-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.piano-faq__answer-span {
  font-size: 30px;
  font-weight: 700;
  font-family: "Roboto", sans-serif;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--piano-blue);
}

.piano-faq__answer-title {
  font-size: 20px;
  font-weight: 500;
  color: var(--piano-dark-green);
  line-height: 1.7;
  letter-spacing: 0.03em;
}

.piano-faq__answer-text {
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.03em;
  color: var(--piano-dark-blue);
  padding-left: 41px;
  margin-top: 0;
}

@media (max-width: 767px) {
  .piano-faq__content {
    margin-top: 40px;
  }

  .piano-faq__item {
    border-radius: 10px;
    padding: 15px 10px;
  }

  .piano-faq__item + .piano-faq__item {
    margin-top: 12px;
  }

  .piano-faq__question-left {
    gap: 7px;
    width: calc(306 / 325 * 100%);
  }

  .piano-faq__question-span {
    font-size: 24px;
    line-height: 1.1;
  }

  .piano-faq__question-text {
    font-size: 16px;
    line-height: 1.6;
  }

  .piano-faq__question-btn {
    width: 12px;
    transform: translateY(0);
  }

  .piano-faq__answer-inner {
    padding: 15px 10px;
  }

  .piano-faq__answer-span {
    font-size: 24px;
  }

  .piano-faq__answer-title {
    font-size: 16px;
  }

  .piano-faq__answer-text {
    font-size: 14px;
    padding-left: 36px;
  }
}