:root {
  --ink: #263846;
  --text: #586873;
  --muted: #85949c;
  --blue: #178bb0;
  --blue-deep: #0f6686;
  --blue-soft: #eef9fc;
  --blue-mist: #f6fcfe;
  --blue-wash: #eaf7fb;
  --line: #dbe9ee;
  --cream: #fbf8f0;
  --cream-soft: #fffdf7;
  --white: #fff;
  --shadow: 0 18px 48px rgba(42, 83, 104, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.68;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 48px);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(219, 233, 238, 0.72);
  backdrop-filter: blur(16px);
  transform: translateY(-100%);
  transition: box-shadow 0.2s ease, transform 0.24s ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  box-shadow: 0 10px 30px rgba(42, 83, 104, 0.1);
  transform: translateY(0);
}

.site-header:focus-within {
  transform: translateY(0);
}

.subpage-body .site-header {
  transform: translateY(0);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1.2;
  white-space: nowrap;
}

.brand img {
  width: 46px;
  height: 46px;
  border-radius: 8px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 30px);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
}

.site-nav a {
  display: grid;
  gap: 1px;
  padding-block: 6px;
  line-height: 1.25;
  text-align: center;
  transition: color 0.18s ease;
}

.site-nav small {
  color: var(--blue);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0;
}

.site-nav a:hover {
  color: var(--blue);
}

.site-nav a:hover small {
  color: var(--blue);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 0;
  color: var(--ink);
  background: transparent;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 6px 0;
  background: currentColor;
}

.hero {
  --hero-gutter: clamp(22px, 3vw, 44px);
  --hero-max-width: 1280px;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 300px);
  grid-template-areas: "visual side";
  column-gap: clamp(26px, 4vw, 58px);
  min-height: 100svh;
  align-items: start;
  overflow: hidden;
  padding-block: clamp(24px, 3vw, 38px) clamp(48px, 5.2vw, 72px);
  padding-inline: max(var(--hero-gutter), calc((100vw - var(--hero-max-width)) / 2));
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0.08) 34%, rgba(255, 255, 255, 0.5) 100%),
    linear-gradient(135deg, #f7fdff 0%, #e7f6fc 38%, #d7eff8 68%, #f8fdff 100%);
  isolation: isolate;
}

.hero::before {
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: clamp(38px, 5.2vw, 72px);
  background: var(--white);
  content: "";
}

.hero-visual {
  container-type: inline-size;
  position: relative;
  grid-area: visual;
  z-index: 1;
  width: 100%;
  max-width: 900px;
  height: clamp(540px, 70svh, 620px);
  align-self: start;
  overflow: hidden;
  border-radius: 18px;
  margin-top: clamp(18px, 2vw, 26px);
  filter: drop-shadow(0 24px 34px rgba(49, 90, 111, 0.13));
}

.hero h1.hero-title {
  position: absolute;
  z-index: 5;
  top: clamp(30px, 4vw, 72px);
  top: clamp(30px, 7cqw, 72px);
  left: 50%;
  width: min(76%, 680px);
  max-width: none;
  margin: 0;
  transform: translateX(-50%);
}

.hero-title img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 12px 24px rgba(18, 43, 58, 0.22));
}

.hero-title-image {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  place-items: center;
  pointer-events: none;
  opacity: 0;
  animation: heroTitleFadeIn 1.4s ease 0.25s forwards;
}

.hero-title-image img {
  width: min(78%, 680px);
  height: auto;
  filter: drop-shadow(0 14px 28px rgba(18, 43, 58, 0.24));
}

@keyframes heroTitleFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.piano-slider {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border: 8px solid rgba(255, 255, 255, 0.86);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 18px 38px rgba(49, 90, 111, 0.12);
  clip-path: inset(0 round 18px);
}

.slider {
  position: absolute;
  inset: 0;
  display: flex;
  transform: translateX(calc(var(--slide-index, 0) * -100%));
  transition: transform 0.9s cubic-bezier(0.76, 0, 0.24, 1);
}

.slide {
  position: relative;
  flex: 0 0 100%;
}

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

.slide:nth-child(2) img,
.slide:nth-child(3) img {
  object-position: 54% center;
}

.slider-ui {
  position: absolute;
  left: 50%;
  bottom: clamp(28px, 4vw, 48px);
  z-index: 4;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 14px 28px rgba(48, 93, 119, 0.16);
  transform: translateX(-50%);
}

.slider-ui button {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 10px 24px rgba(18, 43, 58, 0.18);
  cursor: pointer;
}

.slider-ui > button {
  display: none;
}

.slider-ui button::before {
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--blue);
  border-left: 2px solid var(--blue);
  content: "";
}

[data-prev]::before {
  transform: rotate(-45deg);
}

[data-next]::before {
  transform: rotate(135deg);
}

.dots {
  display: flex;
  gap: 7px;
}

.dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: #bdd8e6;
  box-shadow: none;
}

.dots button::before {
  display: none;
  content: none;
}

.dots button.is-active {
  background: var(--blue);
}

.hero-side {
  position: relative;
  grid-area: side;
  z-index: 5;
  display: grid;
  justify-items: stretch;
  gap: clamp(18px, 2vw, 24px);
  align-self: start;
  margin-top: clamp(18px, 2vw, 26px);
}

.hero-logo {
  display: grid;
  justify-items: center;
  gap: 12px;
  color: #365060;
  font-size: clamp(1.25rem, 1.9vw, 1.62rem);
  line-height: 1.25;
  text-align: center;
}

.hero-logo img {
  width: clamp(110px, 10vw, 142px);
  aspect-ratio: 1;
  border-radius: 8px;
  box-shadow: 0 16px 30px rgba(49, 90, 111, 0.1);
}

.hero-shortcuts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.hero-shortcuts a {
  display: grid;
  min-height: 102px;
  place-items: center;
  gap: 8px;
  padding: 16px 8px;
  border: 1px solid rgba(179, 222, 239, 0.62);
  border-radius: 12px;
  color: #3b5565;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 14px 26px rgba(49, 90, 111, 0.07);
  font-size: 0.86rem;
  font-weight: 600;
  line-height: 1.35;
  text-align: center;
  transition: transform 0.18s ease, background 0.18s ease;
}

.hero-shortcuts a:hover {
  background: rgba(255, 255, 255, 0.94);
  transform: translateY(-2px);
}

.hero-shortcuts img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.shortcut-icon {
  position: relative;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  color: #2398b8;
}

.shortcut-about .shortcut-icon::before {
  width: 32px;
  height: 24px;
  border: 3px solid currentColor;
  border-radius: 3px 12px 12px 3px;
  background:
    linear-gradient(90deg, transparent 47%, currentColor 47%, currentColor 53%, transparent 53%),
    linear-gradient(0deg, transparent 47%, rgba(23, 139, 176, 0.18) 47%, rgba(23, 139, 176, 0.18) 54%, transparent 54%);
  content: "";
}

.shortcut-about .shortcut-icon::after {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 10px 0 currentColor;
  content: "";
}

.shortcut-course .shortcut-icon::before {
  width: 36px;
  height: 26px;
  border: 3px solid currentColor;
  border-radius: 5px;
  background:
    linear-gradient(90deg, transparent 0 15%, currentColor 15% 18%, transparent 18% 31%, currentColor 31% 34%, transparent 34% 49%, currentColor 49% 52%, transparent 52% 66%, currentColor 66% 69%, transparent 69% 83%, currentColor 83% 86%, transparent 86% 100%),
    linear-gradient(180deg, transparent 0 47%, rgba(23, 139, 176, 0.18) 47% 100%);
  content: "";
}

.shortcut-founder .shortcut-icon::before,
.shortcut-founder .shortcut-icon::after {
  position: absolute;
  content: "";
}

.shortcut-founder .shortcut-icon::before {
  top: 10px;
  left: 12px;
  width: 20px;
  height: 20px;
  background: currentColor;
  border-radius: 8px 8px 2px 8px;
  transform: rotate(45deg);
}

.shortcut-founder .shortcut-icon::after {
  top: 11px;
  left: 26px;
  width: 8px;
  height: 24px;
  border-right: 3px solid currentColor;
  border-bottom: 3px solid currentColor;
  border-radius: 0 0 10px 0;
}

.shortcut-teachers .shortcut-icon::before {
  width: 32px;
  height: 18px;
  border: 3px solid currentColor;
  border-top: 0;
  border-radius: 0 0 18px 18px;
  content: "";
  transform: translateY(7px);
}

.shortcut-teachers .shortcut-icon::after {
  position: absolute;
  top: 7px;
  left: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 10px -3px 0 currentColor, 20px 0 0 currentColor;
  content: "";
}

.shortcut-access .shortcut-icon::before {
  position: absolute;
  top: 6px;
  left: 11px;
  display: block;
  width: 22px;
  height: 22px;
  background: currentColor;
  border-radius: 50% 50% 50% 0;
  content: "";
  transform: rotate(-45deg);
}

.shortcut-access .shortcut-icon::after {
  position: absolute;
  top: 13px;
  left: 18px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  content: "";
}


.shortcut-teachers .shortcut-icon::before {
  width: 32px;
  height: 18px;
  border: 3px solid currentColor;
  border-top: 0;
  border-radius: 0 0 18px 18px;
  background: none;
  content: "";
  transform: translateY(7px);
}

.shortcut-teachers .shortcut-icon::after {
  position: absolute;
  top: 7px;
  left: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 10px -3px 0 currentColor, 20px 0 0 currentColor;
  content: "";
}

.shortcut-access .shortcut-icon::before {
  position: absolute;
  top: 6px;
  left: 11px;
  display: block;
  width: 22px;
  height: 22px;
  background: currentColor;
  border-radius: 50% 50% 50% 0;
  content: "";
  transform: rotate(-45deg);
}

.shortcut-access .shortcut-icon::after {
  position: absolute;
  top: 13px;
  left: 18px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  content: "";
}

.shortcut-about .shortcut-icon::before {
  width: 34px;
  height: 24px;
  border: 3px solid currentColor;
  border-radius: 5px;
  background:
    linear-gradient(90deg, transparent 0 14%, currentColor 14% 17%, transparent 17% 29%, currentColor 29% 32%, transparent 32% 44%, currentColor 44% 47%, transparent 47% 59%, currentColor 59% 62%, transparent 62% 74%, currentColor 74% 77%, transparent 77% 100%),
    linear-gradient(180deg, transparent 0 54%, rgba(23, 139, 176, 0.16) 54% 100%);
  content: "";
  transform: none;
}

.shortcut-about .shortcut-icon::after {
  content: none;
}

.shortcut-course .shortcut-icon::before {
  position: absolute;
  top: 8px;
  left: 12px;
  width: 13px;
  height: 20px;
  border-right: 3px solid currentColor;
  border-bottom: 3px solid currentColor;
  border-radius: 0 0 12px 12px;
  background: none;
  content: "";
  transform: none;
}

.shortcut-course .shortcut-icon::after {
  position: absolute;
  top: 4px;
  left: 24px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: -10px 20px 0 currentColor;
  content: "";
}

.shortcut-founder .shortcut-icon::before {
  position: absolute;
  top: 22px;
  left: 4px;
  width: 36px;
  height: 16px;
  border-bottom: 3px solid currentColor;
  border-left: 3px solid currentColor;
  border-radius: 0 0 7px 20px;
  background:
    radial-gradient(ellipse at 68% 0, transparent 0 52%, currentColor 54% 59%, transparent 61%),
    linear-gradient(165deg, transparent 0 45%, currentColor 46% 52%, transparent 53%);
  background-repeat: no-repeat;
  background-size: 30px 15px, 34px 12px;
  background-position: 6px -7px, 4px 0;
  content: "";
  transform: rotate(-5deg);
}

.shortcut-founder .shortcut-icon::after {
  position: absolute;
  top: 5px;
  left: 17px;
  width: 20px;
  height: 22px;
  background:
    radial-gradient(ellipse at 32% 42%, #38a848 0 48%, transparent 50%),
    radial-gradient(ellipse at 72% 42%, #24943b 0 48%, transparent 50%),
    linear-gradient(#3d8d4b, #3d8d4b);
  background-position: left top, right top, center bottom;
  background-repeat: no-repeat;
  background-size: 14px 13px, 14px 13px, 3px 15px;
  content: "";
  transform: none;
}

.shortcut-founder .shortcut-icon::before {
  position: static;
  width: 58px;
  height: 44px;
  border: 0;
  border-radius: 0;
  background: transparent url("assets/shortcut-founder.png") center / 58px auto no-repeat;
  content: "";
  transform: none;
}

.shortcut-founder .shortcut-icon::after {
  content: none;
}

.shortcut-about .shortcut-icon::before,
.shortcut-course .shortcut-icon::before {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 0;
  background-color: var(--blue-deep);
  background-image: none;
  content: "";
  transform: none;
}

.shortcut-about .shortcut-icon::before {
  -webkit-mask: url("assets/shortcut-piano.png") center / contain no-repeat;
  mask: url("assets/shortcut-piano.png") center / contain no-repeat;
}

.shortcut-course .shortcut-icon::before {
  position: static;
  top: auto;
  left: auto;
  display: block;
  width: 38px;
  height: 38px;
  margin-inline: auto;
  transform: none;
  -webkit-mask: url("assets/shortcut-note-trimmed.png") center / contain no-repeat;
  mask: url("assets/shortcut-note-trimmed.png") center / contain no-repeat;
}

.shortcut-about .shortcut-icon::after,
.shortcut-course .shortcut-icon::after {
  content: none;
}

.shortcut-card span:last-child,
.shortcut-instagram span {
  display: block;
}

.hero-contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.hero-contact a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
}

.line-contact {
  color: var(--white);
  background: #2fb857;
}

.phone-contact {
  color: #267fa5;
  border: 1px solid rgba(64, 165, 208, 0.78);
  background: rgba(255, 255, 255, 0.72);
}

.section {
  padding: clamp(62px, 8vw, 104px) 0;
}

section[id] {
  scroll-margin-top: 92px;
}

.section-label {
  margin: 14px 0 4px;
  color: var(--blue);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-label_sub {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.32;
  letter-spacing: 0;
}

h1 {
  max-width: 680px;
  margin-bottom: 16px;
  font-size: clamp(1.71rem, calc(3.35vw - 3px), 2.86rem);
  font-weight: 700;
}

.hero h1 {
  max-width: none;
  margin-bottom: 14px;
  color: #314b5b;
  font-size: clamp(2rem, 3.35vw, 3.05rem);
  line-height: 1.34;
}

h2 {
  margin-bottom: 14px;
  font-size: 1.0625rem;
  font-weight: 700;
}

h3 {
  margin-bottom: 6px;
  font-size: 1.12rem;
  font-weight: 700;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: var(--white);
  background: var(--blue);
}

.button.quiet {
  color: var(--blue-deep);
  border: 1px solid rgba(23, 139, 176, 0.32);
  background: var(--blue-soft);
}

.button.quiet::after {
  margin-left: 10px;
  content: ">>";
  font-size: 0.82em;
  letter-spacing: 0;
}

.intro-grid,
.section-split,
.story-grid,
.access-grid {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: clamp(36px, 7vw, 92px);
  align-items: start;
}

.intro-text {
  color: var(--text);
  font-size: 1.05rem;
}

.text-stack {
  color: var(--text);
}

.text-stack p {
  margin-bottom: 0.75em;
}

.inline-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 60px;
  color: var(--blue-deep);
  font-weight: 700;
  text-align: center;
}

.read-more-row {
  margin-top: 24px;
}

.stories-section .read-more-row {
  margin-top: 60px;
}

.story-home-content {
  display: grid;
  width: min(100%, 820px);
  gap: 26px;
  margin-top: 10px;
  text-align: left;
}

.story-home-heading h3 {
  margin-bottom: 10px;
  color: var(--blue);
}

.story-home-heading {
  text-align: center;
}

.story-home-heading p:not(.section-label) {
  color: var(--text);
}

.story-home-photo {
  margin: 4px auto clamp(18px, 4vw, 34px);
}

.story-home-photo img {
  display: block;
}

.story-home-photos {
  display: grid;
  width: min(100%, 760px);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 4px auto clamp(18px, 4vw, 34px);
}

.story-home-photos-single {
  width: min(100%, 420px);
  grid-template-columns: 1fr;
}

.story-home-photos-graduate {
  width: min(100%, 860px);
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
}

.story-home-photo-card {
  aspect-ratio: 4 / 3;
  margin: 0;
  overflow: hidden;
  border: 6px solid var(--white);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.story-home-photo-card img {
  width: 100%;
  height: 100%;
  max-height: none;
  border: 0;
  border-radius: 0;
  object-fit: cover;
  box-shadow: none;
}

.story-home-photos-graduate .story-home-photo-card {
  aspect-ratio: 4 / 5;
}

.story-home-photos-graduate .story-home-photo-card img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: none;
  border: 0;
  border-radius: 0;
  object-fit: cover;
  box-shadow: none;
}

.story-home-photos-graduate .story-home-photo-card:first-child img {
  transform: scale(1.12);
}

.story-home-photos-graduate .story-home-photo-card-wide {
  aspect-ratio: auto;
}

.story-home-photos-graduate .story-home-photo-card-wide img {
  width: 100%;
  height: auto;
  max-height: none;
  border: 0;
  border-radius: 0;
  object-fit: contain;
  box-shadow: none;
}

.story-home-photo-card-wide {
  grid-column: 1 / -1;
}

.story-home-photo-card-portrait img {
  object-position: center 36%;
}

.detail-story-photo {
  width: min(100%, 420px);
  margin: 22px auto 0;
  overflow: hidden;
  border: 6px solid var(--white);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.detail-story-photo img {
  display: block;
  width: 100%;
  height: auto;
}

.detail-story-photo-portrait {
  width: min(100%, 360px);
}

.story-link-cards {
  display: grid;
  width: min(100%, 760px);
  margin: 0 auto clamp(28px, 5vw, 52px);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, 3vw, 24px);
}

.story-link-card {
  display: grid;
  gap: 10px;
  color: var(--blue-deep);
  font-weight: 800;
  text-align: center;
}

.story-link-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  overflow: hidden;
  border: 5px solid var(--white);
  border-radius: 8px;
  box-shadow: var(--shadow);
  background: var(--blue-soft);
}

.story-link-card span {
  line-height: 1.6;
}

.story-link-placeholder {
  color: var(--muted);
}

.text-link {
  color: var(--blue-deep);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.24em;
}

.about-section {
  background: var(--white);
}

.vision-section {
  background: var(--blue-mist);
}

.message-section {
  background: var(--white);
}

.stories-section {
  background: var(--blue-soft);
}

.gallery-section {
  background: var(--white);
}

.founder-section {
  background: var(--cream-soft);
}

.guide-section {
  background: var(--blue-wash);
}

.lessons-section {
  background: var(--white);
}

.compact-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(24px, 5vw, 64px);
  padding-block: clamp(10px, 2vw, 20px);
}

.center {
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
}

.section-title::before {
  display: grid;
  width: 132px;
  height: 74px;
  place-items: center;
  margin: 0 0 12px;
  border: 0;
  border-radius: 0;
  color: var(--blue);
  background: transparent;
  box-shadow: none;
  content: "笙ｪ";
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
}

.section-title.center::before,
.fee-box .section-title::before,
.social-inner .section-title::before {
  margin-inline: auto;
}

#vision .section-title::before,
#guide .section-title::before {
  content: "笙ｬ";
}

.message-section .section-title::before,
#stories .section-title::before {
  content: "笙ｫ";
}

#gallery .section-title::before {
  content: "笙ｫ";
}

#founder .section-title::before {
  content: "笙ｪ";
}

#lessons .section-title::before {
  background:
    linear-gradient(90deg, transparent 0 13%, var(--blue) 13% 16%, transparent 16% 31%, var(--blue) 31% 34%, transparent 34% 50%, var(--blue) 50% 53%, transparent 53% 68%, var(--blue) 68% 71%, transparent 71% 100%),
    linear-gradient(180deg, var(--white) 0 56%, var(--blue-soft) 56% 100%);
  content: "";
}

#teachers .section-title::before {
  content: "笙ｩ";
}

#faq .section-title::before {
  content: "";
}

#access .section-title::before {
  content: "笙ｪ";
}

.section-title::before,
#vision .section-title::before,
#guide .section-title::before,
.message-section .section-title::before,
#stories .section-title::before,
#gallery .section-title::before,
#founder .section-title::before,
#lessons .section-title::before,
#teachers .section-title::before,
#faq .section-title::before,
#access .section-title::before {
  background: transparent url("assets/section-icon-blue.png") center / contain no-repeat;
  content: "";
  font-size: 0;
}

.centered-section {
  max-width: 900px;
  text-align: center;
}

.centered-section > .section-title,
.centered-section .section-title.center {
  margin-bottom: clamp(28px, 5vw, 46px);
}

.centered-section > .text-stack,
.centered-section .course-area {
  width: min(100%, 820px);
  margin-inline: auto;
  text-align: left;
}

.centered-section .intro-text {
  width: min(100%, 780px);
  margin-inline: auto;
  text-align: left;
}

.vision-section .section-title.center {
  max-width: 860px;
}

.vision-section .section-title.center p:not(.section-label):not(.section-label_sub) {
  width: min(100%, 820px);
  margin-inline: auto;
  padding-inline: 1em;
  text-align: left;
  text-wrap: balance;
}

.vision-section .text-stack > p {
  padding-inline: 1em;
}

.vision-section .section-title.center p:not(.section-label):not(.section-label_sub),
.lessons-section .section-title.center p:not(.section-label):not(.section-label_sub),
.teachers-section .section-title.center p:not(.section-label):not(.section-label_sub) {
  position: relative;
  padding-bottom: 34px;
  border-bottom: 0;
}

.vision-section .section-title.center p:not(.section-label):not(.section-label_sub)::after,
.lessons-section .section-title.center p:not(.section-label):not(.section-label_sub)::after,
.teachers-section .section-title.center p:not(.section-label):not(.section-label_sub)::after {
  position: absolute;
  right: 50%;
  bottom: 0;
  width: min(820px, 100vw - 40px);
  height: 1px;
  background: rgba(23, 139, 176, 0.24);
  content: "";
  transform: translateX(50%);
}

.vision-section .section-title.center p:not(.section-label):not(.section-label_sub)::after {
  width: min(820px, 100vw - 40px);
}

.teachers-section .section-title.center p:not(.section-label):not(.section-label_sub)::after {
  width: min(1120px, 100vw - 40px);
}

.compact-panel.centered-section {
  display: grid;
  justify-items: center;
  gap: 0;
}

.founder-section .compact-panel.centered-section {
  display: block;
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
}

.founder-section .section-title,
.founder-section .read-more-row {
  width: 100%;
  text-align: center;
}

.founder-section .section-title.center {
  margin-inline: auto;
}

.founder-section .read-more-row {
  display: flex;
  justify-content: center;
}

.founder-content {
  display: grid;
  width: min(100%, 760px);
  gap: clamp(26px, 5vw, 42px);
  margin-inline: auto;
  text-align: left;
}

.founder-profile {
  padding-inline: 1em;
}

.founder-profile h3 {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.7;
}

.founder-accordion .detail-trigger {
  padding-inline: 1em;
}

.founder-accordion .detail-panel {
  padding: 6px 1em 30px;
}

.media-section {
  display: grid;
  justify-items: center;
  gap: clamp(28px, 5vw, 46px);
}

.media-section img {
  width: min(100%, 760px);
  max-height: 520px;
  border: 6px solid var(--white);
  border-radius: 8px;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.voices-carousel {
  --voices-gap: clamp(18px, 2.6vw, 28px);
  --voices-slide-width: calc((100% - 56px) / 3);
  display: grid;
  width: 100%;
  gap: 14px;
  margin: clamp(22px, 4vw, 38px) auto 0;
}

.voices-carousel-viewport {
  position: relative;
  overflow: hidden;
  padding: 4px 0 12px;
}

.voices-carousel-track {
  display: flex;
  gap: var(--voices-gap);
  transition: transform 0.72s cubic-bezier(0.76, 0, 0.24, 1);
}

.voices-carousel-slide {
  display: grid;
  flex: 0 0 var(--voices-slide-width);
  height: clamp(210px, 23vw, 288px);
  margin: 0;
  place-items: center;
}

.voices-carousel-slide img {
  width: 100%;
  height: 100%;
  max-height: none;
  border: 6px solid var(--white);
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 14px 28px rgba(48, 93, 119, 0.14);
}

.voices-carousel-slide img {
  object-position: 50% 50%;
}

.growth-photo-grid {
  display: grid;
  width: min(100%, 760px);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(12px, 2vw, 18px);
  margin: clamp(22px, 4vw, 38px) auto 0;
}

.growth-photo-card {
  margin: 0;
  overflow: hidden;
  border: 6px solid var(--white);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.growth-photo-card img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.voices-carousel-button {
  position: absolute;
  top: 50%;
  z-index: 2;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 12px 26px rgba(18, 43, 58, 0.16);
  cursor: pointer;
  transform: translateY(-50%);
}

.voices-carousel-button.prev {
  left: 14px;
}

.voices-carousel-button.next {
  right: 14px;
}

.voices-carousel-button::before {
  width: 10px;
  height: 10px;
  border-top: 2px solid var(--blue);
  border-left: 2px solid var(--blue);
  content: "";
}

.voices-carousel-button.prev::before {
  transform: rotate(-45deg);
}

.voices-carousel-button.next::before {
  transform: rotate(135deg);
}

.voices-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.voices-carousel-dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: #bdd8e6;
  cursor: pointer;
}

.voices-carousel-dots button.is-active {
  width: 24px;
  background: var(--blue);
}

.gallery-section .container {
  display: grid;
  width: min(92%, 1180px);
  gap: clamp(46px, 7vw, 86px);
}

.gallery-section .section-title {
  margin-bottom: 0;
}

.gallery-shelf {
  display: grid;
  gap: clamp(18px, 2.8vw, 30px);
}

.gallery-shelf-heading {
  display: grid;
  justify-items: center;
  gap: 6px;
  padding-inline: clamp(4px, 1vw, 10px);
  text-align: center;
}

.gallery-shelf-heading h3 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.08rem, 1.55vw, 1.34rem);
  font-weight: 700;
  line-height: 1.4;
}

.gallery-shelf-heading .section-label {
  margin: 0;
  color: var(--blue);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.gallery-scroll {
  display: flex;
  gap: clamp(18px, 2.4vw, 30px);
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  padding: 4px clamp(4px, 1vw, 10px) 22px;
  scroll-padding-inline: clamp(4px, 1vw, 10px);
  scroll-snap-type: x proximity;
  scrollbar-color: rgba(23, 139, 176, 0.45) transparent;
  scrollbar-width: thin;
}

.gallery-scroll::-webkit-scrollbar {
  height: 7px;
}

.gallery-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.gallery-scroll::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(23, 139, 176, 0.35);
}

.gallery-scroll figure {
  flex: 0 0 clamp(190px, 19vw, 262px);
  overflow: hidden;
  margin: 0;
  aspect-ratio: 4 / 5;
  border-radius: 4px;
  background: var(--blue-soft);
  box-shadow: 0 12px 26px rgba(48, 93, 119, 0.1);
  scroll-snap-align: start;
}

.gallery-scroll-event figure {
  flex-basis: clamp(240px, 30vw, 370px);
  aspect-ratio: 4 / 3;
}

.gallery-scroll img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-scroll figure:nth-child(3) img,
.gallery-scroll figure:nth-child(6) img,
.gallery-scroll figure:nth-child(10) img {
  object-position: 50% 28%;
}

.gallery-scroll figure:nth-child(1) img {
  object-position: 0% 76%;
}

.gallery-scroll figure:nth-child(2) img {
  object-position: 0% 70%;
}

.gallery-scroll figure:nth-child(8) img {
  object-position: 50% 50%;
}

.gallery-scroll figure:nth-child(12) img {
  object-fit: cover;
  object-position: 100% 50%;
}

.gallery-scroll img[src$="recital-01.jpg"],
.gallery-scroll img[src$="recital-03.jpg"],
.gallery-scroll img[src$="recital-07.jpg"],
.gallery-scroll img[src$="recital-08.jpg"] {
  object-position: 20% 50%;
}

.gallery-scroll-event figure:first-child img {
  object-position: 50% 30%;
}

.gallery-scroll-event figure:last-child img {
  object-position: 50% 42%;
}

.guide-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 42px;
  padding: 16px;
  border: 0;
  background: var(--blue-soft);
}

.guide-list article {
  min-height: 164px;
  padding: 26px 22px;
  border: 0;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
}

.guide-list h3 {
  margin-bottom: 16px;
  color: var(--blue);
  text-align: center;
}

.guide-list p {
  width: min(100%, 19em);
  margin: 0 auto;
  text-align: left;
}

.guide-list span,
.power-list span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 14px;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 10px 24px rgba(23, 139, 176, 0.18);
  font-size: 1.12rem;
  font-weight: 800;
  line-height: 1;
}

.guide-list span {
  display: none;
}

.power-list span {
  box-shadow: none;
}

.photo-panel {
  display: grid;
  width: min(100%, 1040px);
  grid-template-columns: 400px 300px 300px;
  grid-auto-rows: 210px;
  justify-content: center;
  gap: 14px;
  margin-top: clamp(48px, 7vw, 76px);
  margin-inline: auto;
}

.photo-panel figure {
  margin: 0;
  overflow: hidden;
  border: 6px solid var(--white);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.photo-panel .photo-main {
  grid-row: span 2;
}

.photo-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-panel .photo-top {
  object-position: 50% 22%;
}

.photo-panel .photo-mid {
  object-position: 50% 38%;
}

.photo-panel .photo-guide-main {
  object-position: 50% 68%;
}

.photo-panel .photo-room-lesson {
  object-position: 50% 52%;
}

.piano-room-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.piano-room-gallery figure {
  margin: 0;
  overflow: hidden;
  border: 6px solid var(--white);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.piano-room-gallery img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  object-position: 50% 52%;
}

.sticky-title {
  position: sticky;
  top: 104px;
}

.sticky-title p:last-child,
.section-title p:last-child {
  color: var(--text);
}

.power-list {
  display: grid;
  gap: 0;
  margin-top: 28px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.power-list article {
  display: grid;
  grid-template-columns: 64px 0.34fr 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px 1em;
  border-bottom: 1px solid var(--line);
}

.power-list article:last-child {
  border-bottom: 0;
}

.power-list h3 {
  color: var(--blue);
}

.power-list p {
  margin-bottom: 0;
  color: var(--text);
}

.note-box {
  margin-top: 30px;
  padding: 24px 26px;
  border: 1px solid var(--line);
  background: var(--blue-soft);
}

.note-box h3 {
  color: var(--blue);
}

.note-box p:last-child {
  margin-bottom: 0;
}

.lesson-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.lesson-list article {
  display: grid;
  grid-template-columns: 0.42fr 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.lesson-list h3,
.voice-list h3 {
  color: var(--blue);
}

.lesson-list p,
.voice-list p,
.teacher-list p,
.profile p {
  margin-bottom: 0;
  color: var(--text);
}

.course-area {
  display: grid;
  gap: 28px;
}

.course-intro {
  color: var(--text);
}

.course-intro p {
  margin-bottom: 0.8em;
}

.course-accordion {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.course-item {
  border-bottom: 1px solid var(--line);
}

.course-item:last-child {
  border-bottom: 0;
}

.course-trigger {
  position: relative;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 1em;
  border: 0;
  color: var(--blue);
  background: transparent;
  font: inherit;
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.45;
  text-align: left;
  cursor: pointer;
}

.course-trigger::after {
  display: grid;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--blue);
  background: var(--blue-soft);
  content: "+";
  font-size: 1.2rem;
  line-height: 1;
}

.course-trigger[aria-expanded="true"]::after {
  content: "竏・;
}

.course-panel {
  overflow: hidden;
  padding: 6px 1em 30px;
  color: var(--text);
  transition: height 0.46s cubic-bezier(0.32, 0.72, 0.28, 1), padding-top 0.46s cubic-bezier(0.32, 0.72, 0.28, 1), padding-bottom 0.46s cubic-bezier(0.32, 0.72, 0.28, 1), opacity 0.28s ease, transform 0.36s ease;
  will-change: height, opacity, transform;
}

.course-panel.is-closing {
  transition: height 0.42s cubic-bezier(0.36, 0, 0.42, 1), padding-top 0.42s cubic-bezier(0.36, 0, 0.42, 1), padding-bottom 0.42s cubic-bezier(0.36, 0, 0.42, 1), opacity 0.42s ease, transform 0.42s ease;
}

.course-panel.is-animating {
  transition: none;
}

.course-panel:not([hidden]) {
  display: block;
}

.detail-section {
  padding-top: 0;
}

.detail-layout {
  display: grid;
  grid-template-columns: 0.74fr 1.26fr;
  gap: clamp(34px, 7vw, 86px);
  align-items: start;
}

.detail-accordion {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.detail-item {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.detail-item:last-child {
  border-bottom: 0;
}

.detail-trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 4px;
  border: 0;
  color: var(--blue);
  background: transparent;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.45;
  text-align: left;
  cursor: pointer;
}

.detail-trigger::after {
  display: grid;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--blue);
  background: var(--blue-soft);
  content: "+";
  font-size: 1.2rem;
  line-height: 1;
}

.detail-trigger[aria-expanded="true"]::after {
  content: "竏・;
}

.story-home-content .detail-trigger {
  padding-inline: 1em;
}

.detail-panel {
  overflow: hidden;
  padding: 0 4px 26px;
  color: var(--text);
  transition: height 0.46s cubic-bezier(0.32, 0.72, 0.28, 1), padding-top 0.46s cubic-bezier(0.32, 0.72, 0.28, 1), padding-bottom 0.46s cubic-bezier(0.32, 0.72, 0.28, 1), opacity 0.28s ease, transform 0.36s ease;
  will-change: height, opacity, transform;
}

.detail-panel.is-closing {
  transition: height 0.42s cubic-bezier(0.36, 0, 0.42, 1), padding-top 0.42s cubic-bezier(0.36, 0, 0.42, 1), padding-bottom 0.42s cubic-bezier(0.36, 0, 0.42, 1), opacity 0.42s ease, transform 0.42s ease;
}

.detail-panel.is-animating {
  transition: none;
}

.story-home-content .detail-panel {
  padding: 6px 1em 30px;
}

.detail-panel:not([hidden]) {
  display: block;
}

.detail-panel p,
.detail-panel li {
  color: var(--text);
}

.detail-panel p:last-child,
.detail-panel ul:last-child {
  margin-bottom: 0;
}

@keyframes accordionFade {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.course-panel h3 {
  margin-top: 18px;
  color: var(--ink);
  font-size: 1rem;
}

.course-panel h3:first-child {
  margin-top: 0;
}

.course-panel p,
.course-panel li {
  color: var(--text);
}

.course-panel p:last-child,
.course-panel ul:last-child {
  margin-bottom: 0;
}

.course-panel ul {
  margin: 10px 0 16px;
  padding-left: 1.2em;
}

.course-meta {
  display: inline-flex;
  margin: 0 0 16px;
  padding: 5px 14px;
  border: 1px solid rgba(49, 166, 197, 0.32);
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue-deep);
  font-size: 0.9rem;
  font-weight: 800;
}

.course-link {
  display: inline-flex;
  margin-top: 10px;
  padding: 8px 14px;
  border: 1px solid rgba(49, 166, 197, 0.32);
  border-radius: 999px;
  background: var(--white);
  color: var(--blue-deep);
  font-size: 0.9rem;
  font-weight: 800;
}

.course-link.is-pending {
  border-style: dashed;
  color: var(--muted);
}

.note-text {
  color: var(--blue-deep);
  font-size: 0.94rem;
  font-weight: 700;
}

.fee-section {
  background: var(--blue-mist);
  padding-top: 0;
}

.fee-box {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 30px);
  max-width: 980px;
  padding: clamp(28px, 4vw, 42px);
  border: 0;
  border-radius: 0;
  background: #f8fcfd;
  box-shadow: none;
  text-align: center;
}

.fee-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px 10px;
  margin: 0;
  border: 0;
  text-align: left;
}

.fee-list .fee-item {
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 12px 18px;
  border: 1px solid #cfe4ec;
  border-radius: 8px;
  background: #fffdfd;
}

.fee-group-title {
  grid-column: 1 / -1;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid #d8e9ef;
}

.fee-group-title:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.fee-group-title dt {
  color: var(--ink);
  font-size: 0.96rem;
  font-weight: 800;
  text-align: center;
}

.fee-list dt,
.fee-list dd {
  margin: 0;
}

.fee-list dt {
  display: block;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.25;
  white-space: nowrap;
}

.fee-list dd {
  color: #000;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.25;
  white-space: nowrap;
}

.fee-item-wide {
  grid-column: span 3;
  justify-content: flex-start;
}

.fee-list .fee-item-admission {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-content: center;
  justify-items: center;
  gap: 6px;
  text-align: center;
}

.fee-list .fee-item-admission dt,
.fee-list .fee-item-admission dd {
  width: 100%;
}

.fee-list .fee-item-admission dd {
  white-space: normal;
  overflow-wrap: anywhere;
}

.teachers-section {
  background: var(--cream);
}

.teachers-section .section-label_sub,
.faq-section .section-label_sub {
  color: var(--blue-deep);
}

.faq-sub-label {
  color: var(--blue-deep) !important;
}

.teacher-intro-text {
  width: min(100%, 42em);
  margin-inline: auto;
  text-align: left;
}

.teacher-team-text {
  width: min(100%, 42em);
  margin: 60px auto 0;
  padding: 24px 28px;
  border: 1px solid rgba(47, 143, 179, 0.28);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  text-align: left;
}

.teacher-team-text h3 {
  margin-bottom: 30px;
  text-align: center;
}

.profile {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: clamp(32px, 6vw, 74px);
  align-items: center;
  margin-top: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(38, 56, 70, 0.12);
}

.profile img {
  width: 100%;
  aspect-ratio: 1;
  border: 6px solid var(--white);
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.profile h3 {
  color: var(--blue);
  font-size: 1.45rem;
}

.teacher-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 36px;
  border-top: 1px solid rgba(38, 56, 70, 0.12);
  border-bottom: 1px solid rgba(38, 56, 70, 0.12);
}

.teacher-list article {
  display: flex;
  flex-direction: column;
  padding: 24px 20px;
  border-right: 1px solid rgba(38, 56, 70, 0.12);
}

.teacher-list article:last-child {
  border-right: 0;
}

.teacher-list h3 {
  color: var(--blue);
  text-align: center;
}

.teacher-summary {
  display: -webkit-box;
  min-height: calc(1.68em * 4);
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}

.teacher-list article.is-teacher-expanded .teacher-summary {
  display: block;
  min-height: 0;
  overflow: visible;
  -webkit-line-clamp: unset;
}

.teacher-more-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  margin: 4px auto 18px;
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--blue-deep);
  background: var(--white);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 800;
  line-height: 1.35;
  cursor: pointer;
}

.teacher-more-trigger::after {
  margin-left: 8px;
  content: "+";
  font-weight: 800;
}

.teacher-more-trigger[aria-expanded="true"]::after {
  content: "-";
}

.teacher-more-panel {
  overflow: hidden;
  color: var(--text);
}

.teacher-more-panel p:last-child {
  margin-bottom: 18px;
}

.teacher-lesson-photo {
  margin: auto 0 0;
  overflow: hidden;
  border: 5px solid var(--white);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.teacher-lesson-photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.wide-photo {
  width: min(100%, 760px);
  margin: clamp(34px, 5vw, 56px) auto 0;
  overflow: hidden;
  border: 6px solid var(--white);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.wide-photo img {
  display: block;
  width: 100%;
}

.story-grid {
  align-items: center;
}

.story-grid img {
  width: 100%;
  max-height: 520px;
  border: 6px solid var(--white);
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.voice-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 42px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.voice-list article {
  padding: 26px 22px;
  background: rgba(255, 255, 255, 0.7);
  border-right: 1px solid var(--line);
}

.voice-list article:last-child {
  border-right: 0;
}

.story-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(280px, 0.72fr);
  gap: 0;
  margin-top: 42px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.story-feature article {
  padding: 30px 28px;
  border-right: 1px solid var(--line);
}

.story-feature article:last-child {
  border-right: 0;
}

.story-feature h3 {
  color: var(--blue);
}

.story-feature p {
  color: var(--text);
}

.story-feature p:last-child {
  margin-bottom: 0;
}

.story-kicker {
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.compact-title {
  margin-top: clamp(54px, 7vw, 84px);
}

.voice-list.expanded {
  grid-template-columns: repeat(2, 1fr);
}

.voice-list.expanded article {
  background: rgba(255, 255, 255, 0.76);
}

.voice-list.expanded article:nth-child(2n) {
  border-right: 0;
}

.voice-list.expanded p + p {
  margin-top: 12px;
}

.voice-list.expanded strong {
  color: var(--ink);
}

.profile-story {
  display: grid;
  gap: 20px;
  color: var(--text);
}

.profile-story > p {
  margin-bottom: 0;
}

.profile-story article {
  padding-top: 22px;
  border-top: 1px solid rgba(38, 56, 70, 0.14);
}

.profile-story article h3 {
  color: var(--blue);
}

.profile-story article p:last-child {
  margin-bottom: 0;
}

.social-section {
  background: var(--white);
  padding-block: clamp(54px, 7vw, 84px);
}

.social-inner {
  display: grid;
  justify-items: center;
  gap: 28px;
  padding-block: 32px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.social-links a {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 10px;
  padding: 9px 16px 9px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--blue-deep);
  font-weight: 700;
  background: var(--white);
}

.social-links img {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.access-section {
  background: var(--blue-soft);
}

.faq-section {
  background: var(--white);
}

.faq-accordion {
  width: min(100%, 880px);
  margin-inline: auto;
}

.faq-accordion .detail-trigger {
  padding-inline: 1em;
}

.faq-accordion .detail-panel {
  padding-inline: 1em;
}

.access-inner {
  display: grid;
  gap: clamp(30px, 5vw, 54px);
}

.access-heading {
  margin-bottom: 0;
}

.access-heading p:not(.section-label):not(.section-label_sub) {
  width: min(100%, 720px);
  margin-inline: auto;
}

.access-section .access-grid {
  grid-template-columns: minmax(280px, 0.76fr) minmax(0, 1.24fr);
  gap: clamp(24px, 5vw, 56px);
  align-items: stretch;
}

.access-info {
  display: grid;
  align-content: center;
  justify-items: start;
  padding: clamp(24px, 4vw, 40px);
  border-top: 1px solid rgba(38, 56, 70, 0.14);
  border-bottom: 1px solid rgba(38, 56, 70, 0.14);
}

.address {
  display: grid;
  gap: 4px;
  width: 100%;
  margin: 0 0 24px;
  padding: 0 0 20px;
  border-bottom: 1px solid rgba(38, 56, 70, 0.14);
  color: var(--text);
}

.address strong {
  color: var(--ink);
}

.contact-social,
.footer-social {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.contact-social {
  justify-content: flex-start;
}

.contact-social a,
.footer-social a {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 10px 26px rgba(42, 83, 104, 0.12);
}

.contact-social a {
  display: inline-flex;
  width: auto;
  min-height: 42px;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 10px;
  border-radius: 999px;
  color: var(--blue-deep);
  font-size: 0.88rem;
  font-weight: 800;
}

.contact-social img,
.footer-social img {
  width: 26px;
  height: 26px;
  object-fit: contain;
}

.map {
  min-height: 420px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.map iframe {
  width: 100%;
  height: 100%;
  min-height: 420px;
  border: 0;
}

.top-button {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  display: grid;
  width: 68px;
  height: 68px;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  box-shadow: var(--shadow);
  font-size: 0.82rem;
  font-weight: 800;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.top-button.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.site-footer {
  padding: 34px 0;
  color: var(--white);
  background: #263846;
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-inner > img {
  width: 50px;
  height: 50px;
  border-radius: 8px;
  background: var(--white);
}

.footer-inner strong,
.footer-inner small {
  display: block;
}

.footer-inner small {
  color: rgba(255, 255, 255, 0.72);
}

.footer-links {
  display: flex;
  gap: 14px;
  margin-left: auto;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.86rem;
  font-weight: 700;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-social {
  margin-top: 0;
  margin-left: 0;
}

.footer-social a {
  width: 38px;
  height: 38px;
  box-shadow: none;
}

.footer-social img {
  width: 24px;
  height: 24px;
}

.subpage {
  min-height: 100svh;
  padding-top: 74px;
  background: linear-gradient(180deg, var(--blue-soft), var(--white) 38%);
}

.subpage-hero {
  padding: clamp(82px, 12vw, 132px) 0 clamp(42px, 6vw, 72px);
}

.subpage-hero p:last-child {
  max-width: 620px;
  color: var(--text);
}

.sitemap-section {
  padding-top: 0;
}

.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.sitemap-card {
  padding: 30px 26px;
  border-right: 1px solid var(--line);
}

.sitemap-card:last-child {
  border-right: 0;
}

.sitemap-card h2 {
  color: var(--blue);
  font-size: 1.15rem;
}

.sitemap-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sitemap-card a {
  color: var(--ink);
  font-weight: 700;
}

.sitemap-card a:hover {
  color: var(--blue);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: clamp(32px, 6vw, 72px);
  align-items: start;
}

.contact-body .subpage-hero {
  padding-bottom: clamp(28px, 4vw, 48px);
}

.contact-section {
  padding-top: 0;
}

.contact-layout .section-title .button {
  margin-top: 18px;
}

.contact-form {
  display: grid;
  gap: 18px;
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
}

.contact-form textarea {
  resize: vertical;
}

.phone-guide {
  display: grid;
  max-width: 680px;
  gap: 24px;
  justify-items: center;
  text-align: left;
}

.phone-guide p {
  margin: 0;
}

.phone-guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.line-button {
  color: var(--white);
  background: #2fb857;
}

@media (max-width: 1100px) {
  .access-section .access-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .map,
  .map iframe {
    width: 100%;
  }
}

@media (max-width: 980px) {
  .container {
    width: min(90%, 1120px);
  }

  .site-header {
    transform: translateY(0);
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 14px;
    left: 14px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--line);
    border-radius: 10px;
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px) scale(0.985);
    transform-origin: top center;
    transition: opacity 0.34s ease, transform 0.38s cubic-bezier(0.2, 0.8, 0.24, 1);
  }

  .site-header.is-open .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(8px) scale(1);
  }

  .site-nav a {
    padding: 12px;
    opacity: 0;
    text-align: left;
    transform: translateY(-4px);
    transition: color 0.18s ease, opacity 0.28s ease, transform 0.32s ease;
  }

  .site-header.is-open .site-nav a {
    opacity: 1;
    transform: translateY(0);
  }

  .site-header.is-open .site-nav a:nth-child(1) {
    transition-delay: 0.04s;
  }

  .site-header.is-open .site-nav a:nth-child(2) {
    transition-delay: 0.07s;
  }

  .site-header.is-open .site-nav a:nth-child(3) {
    transition-delay: 0.1s;
  }

  .site-header.is-open .site-nav a:nth-child(4) {
    transition-delay: 0.13s;
  }

  .site-header.is-open .site-nav a:nth-child(5) {
    transition-delay: 0.16s;
  }

  .site-header.is-open .site-nav a:nth-child(6) {
    transition-delay: 0.19s;
  }

  .site-header.is-open .site-nav a:nth-child(7) {
    transition-delay: 0.22s;
  }

  .site-header.is-open .site-nav a:nth-child(8) {
    transition-delay: 0.25s;
  }

  .hero,
  .intro-grid,
  .section-split,
  .fee-box,
  .profile,
  .story-grid,
  .access-grid,
  .contact-layout,
  .detail-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    grid-template-areas:
      "visual"
      "side";
    min-height: auto;
    justify-items: center;
    padding: 96px 5vw 58px;
  }

  .section-title.center p:not(.section-label):not(.section-label_sub),
  .fee-box .section-title p:not(.section-label):not(.section-label_sub),
  .story-home-heading p:not(.section-label),
  .access-heading p:not(.section-label):not(.section-label_sub) {
    width: min(100%, 34em);
    margin-inline: auto;
    text-align: left;
  }

  .founder-section .section-title.center p:not(.section-label):not(.section-label_sub),
  .teachers-section .section-title.center > p:not(.section-label):not(.section-label_sub):not(.teacher-intro-text) {
    text-align: center;
  }

  .vision-section .section-title.center p:not(.section-label):not(.section-label_sub) {
    width: min(100%, 820px);
    padding-inline: 1em;
  }

  .vision-section .section-title.center p:not(.section-label):not(.section-label_sub)::after {
    width: min(820px, calc(100% - 2em));
  }

  .section-title.center h1,
  .section-title.center h2,
  .section-title.center h3,
  .section-title.center h4,
  .story-home-heading h3,
  .fee-box .section-title h2,
  .access-heading h2 {
    text-align: center;
  }

  .hero-visual {
    width: min(100%, 760px);
    max-width: none;
    height: clamp(430px, 58svh, 540px);
    margin-top: 0;
  }

  .hero h1.hero-title {
    top: clamp(28px, 7cqw, 58px);
    width: min(82%, 560px);
  }

  .hero-title-image img {
    width: min(84%, 560px);
  }

  .hero-side {
    width: min(100%, 440px);
  }

  .hero-logo {
    display: none;
  }

  .profile img {
    width: min(100%, 400px);
    justify-self: center;
  }

  .profile > div {
    width: min(100%, 400px);
    justify-self: center;
  }

  .profile .section-label,
  .profile h3 {
    text-align: center;
  }

  .profile > div > p:not(.section-label) {
    text-align: left;
  }

  .sticky-title {
    position: static;
  }

  .guide-list,
  .teacher-list,
  .voice-list {
    grid-template-columns: 1fr;
  }

  .guide-list {
    gap: 14px;
    padding: 14px;
  }

  .teacher-lesson-photo {
    width: min(100%, 360px);
    margin: 20px auto 0;
  }

  .teacher-list p {
    width: min(100%, 360px);
    margin-inline: auto;
    text-align: left;
  }

  .power-list article {
    grid-template-columns: 1fr;
  }

  .power-list span {
    margin-inline: auto;
  }

  .power-list h3,
  .note-box h3 {
    text-align: center;
  }

  .power-list p {
    grid-column: auto;
    text-align: left;
  }

  .story-feature,
  .voice-list.expanded {
    grid-template-columns: 1fr;
  }

  .gallery-section .container {
    width: min(92%, 1040px);
  }

  .gallery-scroll figure {
    flex-basis: clamp(184px, 32vw, 246px);
  }

  .gallery-scroll-event figure {
    flex-basis: clamp(230px, 52vw, 340px);
  }

  .story-feature article,
  .story-feature article:last-child,
  .voice-list.expanded article,
  .voice-list.expanded article:nth-child(2n) {
    border-right: 0;
  }

  .teacher-list article,
  .voice-list article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .teacher-list article:last-child,
  .voice-list article:last-child {
    border-bottom: 0;
  }

  .guide-list article {
    min-height: 0;
    border: 0;
  }

  .photo-panel {
    grid-template-columns: repeat(2, 1fr);
  }

  .social-inner {
    align-items: center;
    justify-items: center;
  }

  .access-info {
    justify-items: center;
    text-align: center;
  }

  .voices-carousel {
    --voices-gap: 22px;
    --voices-slide-width: calc((100% - 22px) / 2);
  }

  .contact-social {
    justify-content: center;
  }

  .compact-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .compact-panel.centered-section {
    align-items: center;
    text-align: center;
  }

  .sitemap-grid {
    grid-template-columns: 1fr;
  }

  .sitemap-card,
  .sitemap-card:last-child {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .sitemap-card:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(90%, 1120px);
  }

  .site-header {
    padding: 10px 14px;
  }

  .brand span {
    max-width: 188px;
    white-space: normal;
  }

  .hero-visual {
    height: clamp(340px, 56svh, 460px);
  }

  .hero h1.hero-title {
    top: clamp(24px, 8cqw, 44px);
    width: min(88%, 420px);
  }

  .hero-title-image img {
    width: min(88%, 420px);
  }

  .slider-ui {
    left: 50%;
    bottom: 18px;
    flex-direction: row;
    gap: 10px;
    transform: translateX(-50%);
  }

  .slide:first-child img {
    object-position: 20% center;
  }

  .dots {
    flex-direction: row;
  }

  .dots button {
    width: 8px;
    height: 8px;
  }

  .hero-actions,
  .social-links {
    flex-direction: column;
    align-items: stretch;
  }

  .button,
  .social-links a {
    width: 100%;
  }

  .piano-room-gallery,
  .fee-list {
    grid-template-columns: 1fr;
  }

  .fee-list {
    gap: 12px;
    width: 100%;
    max-width: 100%;
  }

  .fee-list .fee-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    width: 100%;
    min-width: 0;
    justify-content: space-between;
  }

  .fee-list dt,
  .fee-list dd {
    min-width: 0;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .fee-item-wide {
    grid-column: auto;
    grid-template-columns: minmax(0, 1fr);
    justify-items: start;
  }

  .fee-item-wide dt {
    white-space: nowrap;
    overflow-wrap: normal;
  }

  .fee-item-wide dd {
    width: 100%;
  }

  .fee-list .fee-item-admission {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .teacher-lesson-photo {
    width: min(100%, 320px);
  }

  .story-link-cards {
    width: min(100%, 360px);
    grid-template-columns: 1fr;
  }

  .story-home-photos {
    width: min(100%, 360px);
    grid-template-columns: 1fr;
  }

  .story-home-photo-card-wide {
    grid-column: auto;
  }

  .gallery-section .container {
    width: 92%;
  }

  .gallery-scroll {
    gap: 14px;
    margin-inline: 0;
    padding-inline: 0;
  }

  .gallery-scroll figure {
    flex-basis: min(62vw, 230px);
  }

  .gallery-scroll-event figure {
    flex-basis: min(72vw, 300px);
  }

  .teacher-list p {
    width: min(100%, 320px);
  }

  .photo-panel {
    width: 100%;
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 238px;
  }

  .photo-panel .photo-main {
    grid-row: span 2;
  }

  .photo-panel .photo-guide-main {
    object-position: 50% 68%;
  }

  .photo-panel .photo-top,
  .photo-panel .photo-mid,
  .photo-panel .photo-room-lesson {
    object-position: 50% 50%;
  }

  .piano-room-gallery img {
    height: 300px;
  }

  .voices-carousel {
    --voices-gap: 16px;
    --voices-slide-width: calc((100% - 16px) / 2);
  }

  .growth-photo-grid {
    width: min(100%, 360px);
    grid-template-columns: 1fr;
  }

  .voices-carousel-slide {
    height: clamp(190px, 52vw, 280px);
  }

  .voices-carousel-button {
    width: 36px;
    height: 36px;
  }

  .voices-carousel-button.prev {
    left: 10px;
  }

  .voices-carousel-button.next {
    right: 10px;
  }

  .lesson-list article {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .power-list article {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .power-list p {
    grid-column: auto;
  }

  .course-trigger {
    padding-block: 18px;
    font-size: 1rem;
  }

  .course-panel,
  .detail-panel {
    padding-bottom: 22px;
  }

  .detail-trigger {
    padding-block: 18px;
    font-size: 1rem;
  }

  .fee-list .fee-item {
    min-height: 52px;
    padding: 12px 16px;
  }

  .fee-item-wide {
    justify-content: center;
  }

  .top-button {
    width: 60px;
    height: 60px;
    font-size: 0.76rem;
  }

  .footer-links {
    width: 100%;
    margin-left: 0;
  }
}

@media (max-width: 443px) {
  .vision-section .section-title.center {
    width: 100%;
    max-width: none;
  }

  .vision-section .section-title.center p:not(.section-label):not(.section-label_sub) {
    width: min(100%, 34em);
    margin-inline: auto;
    padding-inline: 0;
    text-align: left;
    text-wrap: auto;
  }

  .vision-section .section-title.center p:not(.section-label):not(.section-label_sub)::after {
    width: 100%;
  }

  .power-list span,
  .guide-list span {
    margin-inline: auto;
  }

  .power-list h3,
  .guide-list h3,
  .note-box h3 {
    text-align: center;
  }

  .fee-list .fee-item {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    justify-content: stretch;
    gap: 8px 14px;
    min-width: 0;
    padding: 12px 1em;
  }

  .fee-list dt {
    min-width: 0;
    white-space: normal;
  }

  .fee-list dd {
    min-width: 0;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .fee-item-wide {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .fee-item-wide dt {
    white-space: nowrap;
    overflow-wrap: normal;
  }

  .fee-item-wide dd {
    width: 100%;
  }

  .fee-list .fee-item-admission {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .profile > div {
    text-align: center;
  }

  .access-section .access-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .map {
    min-height: 340px;
  }

  .map iframe {
    min-height: 340px;
  }

  .footer-inner {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }

  .footer-links,
  .footer-social {
    justify-content: center;
  }
}