:root {
  --font-en: "Cormorant Garamond", serif;
  --font-ja: "Noto Sans JP", sans-serif;
  --font-num: "Great Vibes", cursive;
  --font-ja-sub: "IBM Plex Sans JP", sans-serif;
  --font-nav-arrow: "Consolas", monospace;

  --text-main: #2D3748;
  --text-sub: #5A6772;
  --color-gold: #B8964F;

  --bg-primary: #F9F8F6;
  --bg-secondary: #F2EFED;

  --header-bg: rgba(255, 255, 255, 0.15);
  --news-border: rgba(90, 103, 114, 0.5);
  --top-class-card-bg: rgba(255, 255, 255, 0.15);
  --hover-top-class-card-bg: rgba(255, 255, 255, 0.25);
  --top-class-card-border: rgba(249, 248, 246, 0.5);
  --hover-top-class-card-border: rgba(255, 255, 255, 0.8);
  --philosophy-img-bg: rgba(184, 150, 79, 0.3);
  --philosophy-num: rgba(184, 150, 79, 0.4);
  --studio-info-bg: rgba(255, 255, 255, 0.5);
  --table-border: #B3B3B3;
  --hover-news-pagination: #E5E5E5;
  --disabled-news-pagination: #CCC;
  --awards-tab: rgba(90, 103, 114, 0.7);
  --form-field-border: rgba(90, 103, 114, 0.4);

  --mv-overlay: linear-gradient(
    165deg,
    transparent 50%,  
    rgba(0, 0, 0, 0.2) 50%),
    linear-gradient(
    rgba(44, 47, 51, 0.05),
    rgba(44, 47, 51, 0.05));
  --gradient-btn: linear-gradient(
    270deg,
    rgba(184, 150, 79, 0.8),
    rgba(146, 111, 52, 0.8),
    rgba(34, 34, 34, 0),
    rgba(34, 34, 34, 0));
  --gradient-top-class: linear-gradient(
    rgba(255, 255, 255, 0.5), 
    rgba(255, 255, 255, 0.5));
  --gradient-top-access: linear-gradient(
    rgba(249, 248, 246, 0.9), 
    rgba(249, 248, 246, 0.9));
  --gradient-concept-fv: linear-gradient(
    135deg,
    rgba(230, 240, 233, 0) 0%,
    rgba(230, 240, 233, 0.3) 30%,
    rgba(230, 240, 233, 0.7) 60%,
    rgba(230, 240, 233, 1) 100%);
  --gradient-class-fv: linear-gradient(
    135deg,
    rgba(255, 248, 231, 0) 0%,
    rgba(255, 248, 231, 0.3) 30%,
    rgba(255, 248, 231, 0.7) 60%,
    rgba(255, 248, 231, 1) 100%);
  --gradient-teachers-fv: linear-gradient(
    135deg,
    rgba(233, 226, 240, 0) 0%,
    rgba(233, 226, 240, 0.3) 30%,
    rgba(233, 226, 240, 0.7) 60%,
    rgba(233, 226, 240, 1) 100%);
  --gradient-news-fv: linear-gradient(
    225deg,
    rgba(242, 242, 242, 0) 0%,
    rgba(242, 242, 242, 0.3) 30%,
    rgba(242, 242, 242, 0.7) 60%,
    rgba(242, 242, 242, 1) 100%);
  --gradient-awards-fv: linear-gradient(
    225deg,
    rgba(220, 228, 237, 0) 0%,
    rgba(220, 228, 237, 0.3) 30%,
    rgba(220, 228, 237, 0.7) 60%,
    rgba(220, 228, 237, 1) 100%);
  --gradient-contact-fv: linear-gradient(
    rgba(249, 230, 230, 0) 0%,
    rgba(249, 230, 230, 0.2) 30%,
    rgba(249, 230, 230, 0.5) 60%,
    rgba(249, 230, 230, 0.8) 100%);
  --gradient-class-card: linear-gradient(
    to right,
    rgba(249, 248, 246, 0.1) 0%,
    rgba(249, 248, 246, 0.2) 23%,
    rgba(255, 255, 255, 1) 37%,
    rgba(255, 255, 255, 1) 100%);
  --gradient-timetable-bg: linear-gradient(
    rgba(249, 248, 246, 0.4), 
    rgba(249, 248, 246, 0.4));
  --gradient-teachers-bg: linear-gradient(
    rgba(255, 255, 255, 0.6), 
    rgba(255, 255, 255, 0.6));
  --gradient-destinations-bg: linear-gradient(
    rgba(249, 248, 246, 0.85),
    rgba(249, 248, 246, 0.85));
  --gradient-destnations-content: linear-gradient(
    rgba(0, 0, 0, 0.4), 
    rgba(0, 0, 0, 0.4));
  --gradient-subpage-class: linear-gradient(
    rgba(249, 248, 246, 0.3), 
    rgba(249, 248, 246, 0.3));
  --gradient-subpage-class-img-border: linear-gradient(
    135deg,
    rgba(184,150,79,0.6),
    rgba(255,255,255,1), 
    rgba(184, 150, 79, 0.6));

  --white: #FFFFFF;
}

body {
  font-family: var(--font-ja);
  font-weight: normal;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
}

@media (max-width: 798px) {
  body {
    font-size: 14px;
  }
}


/* header */
.site-header {
  width: 100%;
  padding: 1rem 2.5rem;
  position: fixed;
  background-color: var(--header-bg);
  backdrop-filter: blur(6px);
  z-index: 9998;
}

@media (max-width: 1280px) {
  .site-header {
    padding: 1rem 2.25rem;
  }
}

@media (max-width: 1024px) {
  .site-header {
    padding: 1rem 1.75rem;
  }
}

@media (max-width: 798px) {
  .site-header {
    padding: 1rem 1.5rem;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding: 0.625rem 1rem;
  }
}

@media (max-width: 375px) {
  .site-header {
    padding: 0.5rem 1rem;
  }
}

.header-wrapper {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 56px;
  width: auto;
}

@media (min-width: 1440px) {
  .logo img {
    height: 64px;
  }
}

@media (max-width: 1280px) {
  .logo img {
    height: 52px;
  }
}

@media (max-width: 1024px) {
  .logo img {
    height: 48px;
  }
}

@media (max-width: 798px) {
  .logo img {
    height: 40px;
  }
}

.hamburger-btn {
  display: none;
}

@media (max-width: 1024px) {
  .hamburger-btn {
    display: block;
    position: relative;
    width: 44px;
    height: 44px;
    z-index: 10000;
    cursor: pointer;
    transition: all 0.4s;
  }

  .hamburger-btn span {
    display: block;
    position: absolute;
    left: 6px;
    top: 50%;
    width: 32px;
    height: 2px;
    background: var(--text-main);
    transition: all 0.4s cubic-bezier(0.65, 0, 0.35, 1);
  }

  .hamburger-btn span:nth-child(1) {
    transform: translateY(-11px);
  }

  .hamburger-btn span:nth-child(2) {
    opacity: 1;
  }

  .hamburger-btn span:nth-child(3) {
    transform: translateY(11px);
  }

  .hamburger-btn.is-active span:nth-child(1) {
    transform: rotate(45deg);
  }

  .hamburger-btn.is-active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger-btn.is-active span:nth-child(3) {
    transform: rotate(-45deg);
  }

  .header-nav {
    position: fixed;
    padding: 64px 0;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100svh;
    background: var(--bg-secondary);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.5s ease, visibility 0.5s;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .header-nav.is-active {
    transform: translateX(0);
    visibility: visible;
  }
}

@media (max-width: 560px) {
  .hamburger-btn {
    width: 40px;
    height: 40px;
  }

  .hamburger-btn span {
    left: 4px;
  }
}

.nav-list {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
}

@media (max-width: 1280px) {
  .nav-list {
    gap: 2rem;
  }
}

@media (max-width: 1024px) {
  .nav-list {
    height: 100%;
    flex-direction: column;
    gap: 3rem;
  }
}

@media (max-width: 798px) {
  .nav-list {
    gap: 2.5rem;
  }
}

@media (max-width: 560px) {
  .nav-list {
    justify-content: space-between;
  }
}

.nav-item a {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: transform 0.3s ease, color 0.3s ease;
  }

@media (max-width: 1024px) {
  .nav-item a {
    gap: 2px;
  }
}

.nav-item a:hover {
  transform: translateY(-2px);
}

.en-nav {
  font-family: var(--font-en);
  font-size: clamp(1rem, 0.500rem + 0.781vw, 1.125rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.1em;
}

@media (max-width: 1024px) {
  .en-nav {
    font-size: 1.25rem;
  }
}

@media (max-width: 375px) {
  .en-nav {
    font-size: 1rem;
  }
}

.jp-nav {
  font-size: 0.625rem;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.1em;
  color: var(--color-gold);
}

@media (max-width: 1024px) {
  .jp-nav {
    font-size: 0.625rem;
  }
}

.nav-item a:hover .en-nav {
  color: var(--color-gold);
}

.nav-item a:hover .jp-nav {
  color: var(--text-main);
}


/* section */
.l-section {
  position: relative;
  z-index: 10;
  -webkit-transform: translateZ(0); /*Safariの「透け・チラつき」を防ぐ*/
  transform: translateZ(0);
  padding: 120px 0 100px;
}

@media (max-width: 1280px) {
  .l-section {
    padding: 100px 0 80px;
  }
}

@media (max-width: 1024px) {
  .l-section {
    padding: 90px 0 70px;
  }
}

@media (max-width: 798px) {
  .l-section {
    padding: 80px 0 60px;
  }
}

@media (max-width: 560px) {
  .l-section {
    padding: 70px 0 56px;
  }
}

@media (max-width: 375px) {
  .l-section {
    padding: 60px 0 50px;
  }
}

.inner-section {
  width: 80%;
  max-width: 1152px;
  margin-inline: auto;
}

.section-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
  justify-content: center;
  align-items: center;
  text-align: center;
  margin-bottom: 72px;
}

@media (max-width: 1280px) {
  .section-title {
    margin-bottom: 64px;
  }
}

@media (max-width: 1024px) {
  .section-title {
    margin-bottom: 56px;
  }
}

@media (max-width: 798px) {
  .section-title {
    margin-bottom: 48px;
  }
}

@media (max-width: 560px) {
  .section-title {
    margin-bottom: 40px;
  }
}

.jp-section-title {
  font-size: clamp(0.75rem, 0.698rem + 0.221vw, 0.875rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.1em;
  color: var(--color-gold);
}

.en-section-title {
  font-family: var(--font-en);
  font-size: clamp(3rem, 1.154rem + 2.885vw, 3.75rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.15em;
}

@media (max-width: 1024px) {
  .en-section-title {
    font-size: clamp(2.25rem, 1.817rem + 1.849vw, 3rem);
  }
}

.last-section {
  padding-bottom: 180px;
}

@media (max-width: 1280px) {
  .last-section {
    padding-bottom: 160px;
  }
}

@media (max-width: 1024px) {
  .last-section {
    padding-bottom: 140px;
  }
}

@media (max-width: 798px) {
  .last-section {
    padding-bottom: 120px;
  }
}

@media (max-width: 560px) {
  .last-section {
    padding-bottom: 100px;
  }
}

@media (max-width: 375px) {
  .last-section {
    padding-bottom: 80px;
  }
}

/* section-title スクロールアニメーション */
.section-title span {
  opacity: 0;
  transform: translateY(16px);
  transition: all 1.0s cubic-bezier(0.22, 1, 0.36, 1);
}

.section-title.is-active .jp-section-title {
  opacity: 1;
  transform: translateY(0);
}

.section-title.is-active .en-section-title {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.3s;
  transition-duration: 1.2s;
}


/* button */
.btn-wrapper {
  display: flex;
  justify-content: center;
  margin-top: 56px;
}

@media (max-width: 1024px) {
  .btn-wrapper {
    margin-top: 52px;
  }
}

@media (max-width: 798px) {
  .btn-wrapper {
    margin-top: 48px;
  }
}

@media (max-width: 560px) {
  .btn-wrapper {
    margin-top: 44px;
  }
}

@media (max-width: 375px) {
  .btn-wrapper {
    margin-top: 40px;
  }
}

.btn {
  display: inline-block;
  padding: 1.5rem 4.5rem;
  border-radius: 2px;
  background: transparent;
  border: 1px solid var(--color-gold);
  font-family: var(--font-en);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.15em;
  color: var(--color-gold);
  transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  background: var(--gradient-btn);
  background-position: 1% 50%;
  background-size: 300% 300%;
}

@media (max-width: 1024px) {
  .btn {
    padding: 1.2rem 3.6rem;
  }
}

.btn:hover {
  color: var(--white);
  border: 1px solid transparent;
  background-position: 90% 50%;
}

.jp-btn {
  font-family: var(--font-ja);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.15em;
}


/* footer */
.footer-wrapper {
  padding: 60px 0 20px;
  background: var(--text-main);
  color: var(--white);
}

@media (min-width: 1440px) {
  .footer-wrapper {
    padding: 72px 0 24px;
  }
}

@media (max-width: 1024px) {
  .footer-wrapper {
    padding: 56px 0 16px;
  }
}

@media (max-width: 560px) {
  .footer-wrapper {
    padding: 48px 0 12px;
  }
}

@media (max-width: 375px) {
  .footer-wrapper {
    padding: 40px 0 12px;
  }
}

.footer-wrapper .logo {
  margin-bottom: 56px;
  display: flex;
  justify-content: center;
}

.footer-logo {
  height: 80px;
}

@media (max-width: 1280px) {
  .footer-logo {
    height: 72px;
  }
}

@media (max-width: 1024px) {
  .footer-wrapper .logo {
    margin-bottom: 48px;
  }
  .footer-logo {
    height: 64px;
  }
}

@media (max-width: 560px) {
  .footer-wrapper .logo {
    margin-bottom: 40px;
  }
  .footer-logo {
    height: 56px;
  }
}

.footer-wrapper .nav-list {
  display: flex;
  flex-direction: row;
  justify-content: center;
  flex-wrap: wrap;
  gap: 3rem;
  padding: 0 32px;
}

@media (max-width: 1024px) {
  .footer-wrapper .nav-list {
    gap: 2.5rem;
  }
}

@media (max-width: 560px) {
  .footer-wrapper .nav-list {
    gap: 1.5rem 2rem;
  }
}

.footer-wrapper .en-nav,
.footer-wrapper .jp-nav {
  color: var(--white);
}

@media (max-width: 1024px) {
  .footer-wrapper .en-nav {
    font-size: 1rem;
  }

  .footer-wrapper .jp-nav {
    font-size:0.625rem;
  }
}

@media (max-width: 560px) {
  .footer-wrapper .jp-nav {
    font-weight: 300;
  }
}

.footer-wrapper .nav-item a {
  gap: 3px;
}

.footer-wrapper .nav-item a:hover .jp-nav {
  color: var(--color-gold);
}

.sns {
  display: flex;
  justify-content: center;
  margin: 60px auto;
  text-align: center;
}

@media (max-width: 1024px) {
  .sns {
    margin: 56px auto 48px;
  }
}

@media (max-width: 560px) {
  .sns {
    margin: 48px auto 40px;
  }
}

.sns a {
  transition: transform 0.3s ease;
}

.insta-icon {
  width: 36px;
  margin: 0 auto 12px;
  transition: filter 0.3s ease, transform 0.3s ease;
}

@media (max-width: 1024px) {
  .insta-icon {
    width: 32px;
  }
}

@media (max-width: 560px) {
  .insta-icon {
    margin: 0 auto 10px;
  }
}

.sns a:hover .insta-icon {
  transform: translateY(-4px);
  filter: sepia(100%) saturate(200%) hue-rotate(10deg) brightness(90%) drop-shadow(0 0 8px rgba(184, 150, 79, 0.5));
}

.copy-right {
  display: block;
  text-align: center;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 300;
  line-height: 1.2;
}


/* font-setting */
.c-title-small {
  font-size: clamp(1rem, 0.385rem + 0.962vw, 1.25rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.15em;
}

.c-label {
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.1em;
}

.sns-intro {
  font-size: 0.75rem;
  line-height: 1.6;
}

@media (max-width: 798px) {
  .sns-intro {
    font-weight: 300;
  }
}

.en-page-title {
  font-family: var(--font-en);
  font-size: clamp(3.75rem, 0.673rem + 4.808vw, 5rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.2em;
}

@media (max-width: 1024px) {
  .en-page-title {
    font-size: clamp(2.75rem, 1.543rem + 3.448vw, 3.75rem);
  }
}

@media (max-width: 560px) {
  .en-page-title {
    font-size: clamp(2.5rem, 1.993rem + 2.162vw, 2.75rem);
  }
}

.jp-page-title {
  font-size: clamp(0.75rem, 0.646rem + 0.442vw, 1rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.15em;
  color: var(--text-sub);
}

.concept-catchcopy {
  margin-bottom: 3rem;
  font-size: clamp(1.25rem, 0.986rem + 1.127vw, 2rem);
  line-height: 1.2;
  letter-spacing: 0.12em;
}

.c-text-sub {
  font-size: clamp(0.875rem, 0.375rem + 0.781vw, 1rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.15em;
  color: var(--text-sub);
}

.lead-text {
  line-height: 2;
}

@media (max-width: 1024px) {
  .lead-text {
    text-align: justify;
  }
}

.c-text-small {
  font-size: 0.875rem;
  letter-spacing: 0.08em;
}


/* 背景色 */
.bg-primary {
  background: var(--bg-primary);
}

.bg-secondary {
  background: var(--bg-secondary);
}


/* 下層ページ */
.page-fv {
  width: 100%;
  aspect-ratio: 8/3;
  display: flex;
  justify-content: center;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 1;
}

@media (max-width: 1024px) {
  .page-fv {
    aspect-ratio: 16/7;
  }
}

@media (max-width: 798px) {
  .page-fv {
    aspect-ratio: 16/9;
  }
}

@media (max-width: 375px) {
  .page-fv {
    aspect-ratio: 3/2;
  }
}

.page-title {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

@media (max-width: 1280px) {
  .page-title {
    gap: 14px;
  }
}

@media (max-width: 1024px) {
  .page-title {
    gap: 12px;
  }
}

@media (max-width: 798px) {
  .page-title {
    gap: 10px;
  }
}

@media (max-width: 560px) {
  .page-title {
    gap: 8px;
  }
}

.page-lead {
  position: relative;
  padding: 100px 0;
  display: flex;
  justify-content: center;
  text-align: center;
  z-index: 10;
  box-shadow: 0 -20px 40px rgba(0, 0, 0, 0.05);
}

@media (max-width: 1280px) {
  .page-lead {
    padding: 90px 0;
  }
}

@media (max-width: 1024px) {
  .page-lead {
    padding: 80px 0;
  }
}

@media (max-width: 798px) {
  .page-lead {
    padding: 70px 0;
  }
}

@media (max-width: 560px) {
  .page-lead {
    padding: 60px 0;
  }
}

@media (max-width: 375px) {
  .page-lead {
    padding: 50px 0;
  }
}

@media (max-width: 1024px) {
  .lead-text br {
    display: none;
  }
}

.concept-catchcopy br {
  display: none;
}

@media (max-width: 560px) {
  .concept-catchcopy br {
    display: block;
  }
}

@media (max-width: 1280px) {
  .concept-catchcopy {
    margin-bottom: 2.5rem;
  }
}

@media (max-width: 1024px) {
  .concept-catchcopy {
    margin-bottom: 2.25rem;
  }
}

@media (max-width: 560px) {
  .concept-catchcopy {
    line-height: 1.6;
    margin-bottom: 1.75rem;
  }
}


/* お知らせ関連 */
.news-title {
  font-size: clamp(1.125rem, 0.125rem + 1.25vw, 1.25rem);
  margin-bottom: 10px;
}

@media (max-width: 1024px) {
  .news-title {
    font-size: 1rem;
  }
}

@media (max-width: 560px) {
  .news-title {
    font-size: 0.875rem;
  }
}

.news-date {
  color: var(--text-sub);
  margin-bottom: 16px;
}

@media (max-width: 560px) {
  .news-date {
    font-size: 0.75rem;
  }
}

@media (max-width: 1280px) {
  .news-text {
    font-size: 0.875rem;
  }
}

@media (max-width: 560px) {
  .news-text {
    font-size: 0.75rem;
  }
}

@media (max-width: 500px) {
  .news-text {
    display: none;
  }
}

.news-grid-wrapper {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  column-gap: 56px;
}

@media (max-width: 1024px) {
  .news-grid-wrapper {
    grid-template-columns: repeat(1, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 0px;
  }
}

.news-grid-item {
  padding: 24px 0;
  border-top: 1px solid var(--news-border);
  border-bottom: 1px solid var(--news-border);
}

@media (max-width: 560px) {
  .news-grid-item {
    padding: 16px 0;
  }
}

.news-grid-item:nth-of-type(3),
.news-grid-item:nth-of-type(4) {
  border-top: none;
}

@media (max-width: 1024px) {
  .news-grid-item:nth-of-type(2) {
    border-top: none;
  }
}
.news-flex-wrapper {
  display: flex;
  align-items: center;
  gap: 24px;
}

@media (max-width: 375px) {
  .news-flex-wrapper {
    gap: 16px;
  }
}

.news-img {
  flex-shrink: 0;
  width: 36.5%;
  aspect-ratio: 1/1;
  overflow: hidden;
}

@media (max-width: 1024px) {
  .news-img {
    width: 120px;
  }
}

@media (max-width: 375px) {
  .news-img {
    width: 100px;
  }
}

.news-img img {
  transition: transform 0.4s ease;
}

.news-grid-item:hover .news-img img {
  transform: scale(1.1);
}


/* 投稿ページ */
.post-fv {
  width: 100%;
  aspect-ratio: 4/1;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 1;
}

@media (max-width: 1024px) {
  .post-fv {
    height: 40vh;
    height: 40svh;
  }
}

.post-content-wrapper {
  position: relative;
  padding: 16px 0 180px;
  z-index: 10;
  box-shadow: 0 -20px 40px rgba(0, 0, 0, 0.05);
}

@media (max-width: 1280px) {
  .post-content-wrapper {
    padding-bottom: 160px;
  }
}

@media (max-width: 1024px) {
  .post-content-wrapper {
    padding-bottom: 140px;
  }
}

@media (max-width: 798px) {
  .post-content-wrapper {
    padding-bottom: 120px;
  }
}

@media (max-width: 560px) {
  .post-content-wrapper {
    padding-bottom: 100px;
  }
}

@media (max-width: 375px) {
  .post-content-wrapper {
    padding-bottom: 80px;
  }
}


/* テキストフェードイン */
.reveal-left {
  position: relative;
  display: inline-block;
  color: transparent !important;
  /* 元の文字色は隠す */

  /* 背景グラデーションの設定 */
  background: linear-gradient(to right,
      #2D3748 0%,
      #2D3748 45%,
      /* 表示される色 */
      rgba(45, 55, 72, 0) 55%,
      /* 境界を少しぼかす */
      rgba(45, 55, 72, 0) 100%);
  background-size: 200% 100%;
  background-position: 100% 0;
  /* 最初は透明部分を表示 */

  /* 文字の形に切り抜く */
  -webkit-background-clip: text;
  background-clip: text;

  /* アニメーションの速度と質 */
  transition: background-position 3s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: background-position;
}

/* クラスがついた時の挙動 */
.reveal-left.is-active {
  background-position: 0% 0%;
}