.main-visual {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100svh; /*svhはsafari対策*/
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  background-color: #000;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
}

header,
.main-visual {
  opacity: 0;
  visibility: hidden;
  transition: opacity 1s ease, visibility 1s ease;
}


header.is-loaded,
.main-visual.is-loaded {
  opacity: 1;
  visibility: visible;
}

/* スライドの重なり設定 */
.mv-slider {
  width: 100%;
  height: 100vh;
  height: 100svh;
  position: relative;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100svh;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 2s ease;
  z-index: 1;
}

.slide.is-mv-active {
  opacity: 1;
  z-index: 2;
}

.mv-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100svh;
  z-index: 3;
  pointer-events: none;
  background-image: var(--mv-overlay);
}

.mv-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 4;
  pointer-events: none;
}

@media (max-width: 560px) {

  .main-visual,
  .mv-slider,
  .slide,
  .mv-overlay,
  .mv-content {
    height: 70vh;
    height: 70svh;
    min-height: 70vh;
    min-height: 70svh;
  }
}

@media (max-width: 375px) {
  .main-visual,
  .mv-slider,
  .slide,
  .mv-overlay,
  .mv-content {
    height: 60vh;
    height: 60svh;
    min-height: 60vh;
    min-height: 60svh;
  }
}

.mv-catchphrase {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.en-title-top {
  font-family: var(--font-en);
  font-size: clamp(4rem, 5.5vw, 5rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.1em;
  color: var(--white);
  white-space: nowrap;
  z-index: 1;
  text-shadow: 0 4px 10px rgba(45, 55, 72, 0.15);
}

@media (min-width: 1440px) {
  .en-title-top {
    font-size: 5.5rem;
  }
}

@media (max-width: 1100px) {
  .en-title-top {
    font-size: 3.5rem;
  }
}

@media (max-width: 798px) {
  .en-title-top {
    font-size: clamp(2rem, 0.670rem + 5.674vw, 3.5rem);
  }
}

.en-title-top br {
  display: none;
}

@media (max-width: 1024px) {
  .en-title-top br {
    display: block;
  }
}

.en-title-top span,
.ja-sub-vertical span {
  color: var(--color-gold);
}

.mv-subcatch-left {
  position: absolute;
  left: 3.9%;
  top: calc(88px + 40px);
}

@media (min-width: 1440px) {
  .mv-subcatch-left {
    left: 2.5%;
  }
}

@media (max-width: 1280px) {
  .mv-subcatch-left {
    left: 3%;
    top: calc(88px + 30px);
  }
}

@media (max-width: 560px) {
  .mv-subcatch-left {
    top: calc(60px + 16px);
  }
}

@media (max-width: 375px) {
  .mv-subcatch-left {
    top: calc(56px + 12px);
  }
}

.mv-subcatch-right {
  position: absolute;
  left: calc(100% - 3.9% - 1.7em);
  bottom: 40px;
}

@media (min-width: 1440px) {
  .mv-subcatch-right {
    left: calc(100% - 2.5% - 1.7em);
  }
}

@media (max-width: 1280px) {
  .mv-subcatch-right {
    left: calc(100% - 3% - 1.7em);
    bottom: 30px;
  }
}

@media (max-width: 560px) {
  .mv-subcatch-right {
    bottom: 16px;
  }
}

@media (max-width: 375px) {
  .mv-subcatch-right {
    bottom: 12px;
  }
}

.ja-sub-vertical {
  -webkit-writing-mode: vertical-rl;
  writing-mode: vertical-rl;
  width: fit-content;
  width: -webkit-fit-content;
  margin-bottom: -0.5em;
  letter-spacing: 0.3em;
  font-size: 1rem;
  color: var(--white);
  text-shadow: 0px 1px 2px rgba(0, 0, 0, 0.4);
}

@media (min-width: 1440px) {
  .ja-sub-vertical {
    font-size: 1.125rem;
  }
}

@media (max-width: 798px) {
  .ja-sub-vertical {
    font-size: 0.9rem;
  }
}

@media (max-width: 560px) {
  .ja-sub-vertical {
    font-size: 0.85rem;
  }
}

@media (max-width: 375px) {
  .ja-sub-vertical {
    font-size: 0.625rem;
  }
}

.concept {
  box-shadow: 0 -20px 40px rgba(0, 0, 0, 0.05);
  padding: 100px 0 100px;
}

.concept-btn {
  margin-top: 0px;
}

.concept-wrapper .section-title {
  margin-bottom: 0px;
}

.concept-wrapper {
  display: flex;
  flex-direction: column;
  gap: 56px;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.concept-wrapper .en-section-title {
  color: var(--text-sub);
}

.class {
  background: var(--gradient-top-class), url(../img/Astudio.webp) no-repeat center center / cover;
}

.top-class-wrapper {
  width: 90%;
}

@media (max-width: 1170px) {
  .top-class-wrapper {
    width: 95%;
  }
}

@media (max-width: 798px) {
  .top-class-wrapper {
    width: 80%;
  }
}

@media (max-width: 375px) {
  .top-class-wrapper {
    width: 90%;
  }
}

.class-flex {
  display: flex;
  justify-content: space-between;
  gap: 36px;
}

@media (max-width: 1024px) {
  .class-flex {
    gap: 24px;
  }
}

@media (max-width: 798px) {
  .class-flex {
    justify-content: flex-start;
    align-items: center;
    flex-direction: column;
    gap: 48px;
  }
}

.select-class-card {
  width: 31.25%;
  background: var(--top-class-card-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--top-class-card-border);
  box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
  overflow: hidden;
}

@media (max-width: 798px) {
  .select-class-card {
    width: 70%;
  }
}

@media (max-width: 560px) {
  .select-class-card {
    width: 324px;
  }
}

@media (max-width: 375px) {
  .select-class-card {
    width: 100%;
  }
}

.select-class-card:hover {
  transform: translateY(-4px) scale(1.02);
  background: var(--hover-top-class-card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 30px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--hover-top-class-card-border);
}

.select-class-card a {
  padding: 40px 30px;
}

@media (max-width: 1024px) {
  .select-class-card a {
    padding: 24px 20px;
  }
}

@media (max-width: 798px) {
  .select-class-card a {
    padding: 40px 30px;
  }
}

@media (max-width: 375px) {
  .select-class-card a {
    padding: 24px 20px;
  }
}

.class-img {
  margin-bottom: 30px;
}

@media (max-width: 1024px) {
  .class-img {
    margin-bottom: 24px;
  }
}

.select-class-description {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 16px;
}

@media (max-width: 1024px) {
  .select-class-description {
    gap: 14px;
  }
}

.class-name {
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.1em;
}

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

@media (max-width: 798px) {
  .class-name {
    font-size: 1.5rem
  }
}

@media (max-width: 375px) {
  .class-name {
    font-size: 1.25rem;
  }
}

.class-target {
  line-height: 1.2;
  letter-spacing: 0.1em;
  color: var(--text-sub);
}

@media (max-width: 1024px) {
  .class-target {
    font-size: 0.875rem;
  }
}

@media (max-width: 798px) {
  .class-target {
    font-size: 1rem;
  }
}

@media (max-width: 375px) {
  .class-target {
    font-size: 0.875rem;
  }
}

.class-intro {
  font-size: clamp(0.875rem, -0.125rem + 1.25vw, 1rem);
  text-align: center;
}

@media (max-width: 1110px) {
  .class-intro br{
    display: none;
  }
}

.access {
  background: var(--gradient-top-access), url(../img/access-bg.webp) no-repeat center center / cover;
}

@media (max-width: 1024px) {
  .access-wrapper {
    width: 90%;
  }
}

.access-flex {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 100px;
}

@media (max-width: 1280px) {
  .access-flex {
    gap: 80px;
  }
}

@media (max-width: 1024px) {
  .access-flex {
    gap: 56px;
  }
}

@media (max-width: 798px) {
  .access-flex {
    flex-direction: column-reverse;
    gap: 32px;
  }
}

.access-description {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

@media (max-width: 1024px) {
  .access-description {
    gap: 24px;
  }
}

@media (max-width: 798px) {
  .access-description {
    align-items: center;
    text-align: center;
  }
}

@media (max-width: 375px) {
  .access-description {
    gap: 20px;
  }
}

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

@media (max-width: 798px) {
  .access-logo {
    display: none;
  }
}

.studio-address {
  display: flex;
  flex-direction: column;
  gap: 10px;
  line-height: 1.6;
}

@media (max-width: 1280px) {
  .studio-address {
    font-size: clamp(0.875rem, 0.375rem + 0.781vw, 1rem);
  }
}

@media (max-width: 798px) {
  .studio-address {
    gap: 4px;
  }
}

@media (max-width: 798px) {
  .studio-address br {
    display: none;
  }
}

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

.googlemap-btn {
  margin-top: 0px;
  justify-content: flex-start;
}

@media (max-width: 798px) {
  .googlemap-btn {
    margin-top: 24px;
  }
}

.appearance-img {
  width: 57.8%;
}

@media (max-width: 798px) {
  .appearance-img {
    width: 80%;
  }
}

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