.site-nav,
.sec-hero {
  
  --nav-h: 73px;                 
  --nav-top: 37px;               
  --nav-radius: 20px;
  --nav-glass: rgba(255, 255, 255, 0.3);
  --nav-glass-solid: rgba(255, 255, 255, 0.88);
  --nav-cta-border: #eeeeee;

  --hero-stage-h: 763px;         
  --hero-title-fs: 48px;         
  --hero-title-lh: 58px;
  --hero-tag-border: #7b8495;    

}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  width: 100%;
  max-width: var(--page-w);
  margin-inline: auto;
  margin-bottom: calc((var(--nav-top) + var(--nav-h)) * -1); 
  padding: var(--nav-top) 40px 0;
  pointer-events: none; 
}

.site-nav__bar {
  pointer-events: auto;
  display: flex;
  align-items: center;
  height: var(--nav-h);
  padding-left: 38px; 
  border-radius: var(--nav-radius);
  background: var(--nav-glass);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: background-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.site-nav.is-scrolled .site-nav__bar,
.is-scrolled .site-nav__bar {
  background: var(--nav-glass-solid);
  box-shadow: var(--shadow-soft);
}

.site-nav__logo {
  flex: none;
  display: block;
  width: 256px;
}

.site-nav__logo img {
  width: 100%;
  height: auto;
}

.site-nav__menu {
  margin-left: 106px; 
}

.site-nav__menu ul {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav__menu a {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  line-height: 20px;
  white-space: nowrap;
  color: var(--text-strong);
  transition: color var(--dur) var(--ease);
}

.site-nav__menu a:hover {
  color: var(--green-deep);
}

.site-nav__actions {
  display: flex;
  align-items: center;
  height: 100%;
  margin-left: auto;
}

.site-nav__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  min-width: 126px;
  height: 48px;
  padding-inline: 10px;
  border: 1px solid var(--aixeed-green);
  border-radius: 10px;
  font-size: var(--fs-xs);
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  color: var(--text-strong);
  transition: background-color var(--dur) var(--ease);
}

.site-nav__btn + .site-nav__btn {
  margin-left: 12px;
}

.site-nav__btn:hover {
  background: var(--aixeed-green);
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: stretch;
  flex: none;
  width: 156px;
  margin-left: 8px;
  border: 1px solid var(--nav-cta-border);
  border-radius: var(--nav-radius);
  background: var(--aixeed-green);
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  color: var(--text-strong);
  transition: background-color var(--dur) var(--ease),
    color var(--dur) var(--ease);
}

.site-nav__cta:hover {
  background: var(--green-deep);
  border-color: var(--green-deep);
  color: var(--text-invert);
}

.site-nav__panel {
  display: contents;
}

.site-nav__toggle,
.site-nav__panel-head {
  display: none;
}

.sec-hero__title-line--sp,
.sec-hero__lead--sp {
  display: none;
}

.sec-hero picture {
  display: contents;
}

.sec-hero {
  position: relative;
}

.sec-hero__stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr; 
  min-height: var(--hero-stage-h);
  background: var(--surface);
}

.sec-hero__media {
  position: relative;
  overflow: hidden;
}

.sec-hero__photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  
  object-position: 47% 50%;
}

.sec-hero__copy {
  position: relative;
  z-index: 1;
  padding: 201px 0 0 var(--edge); 
}

.sec-hero__title {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px; 
  font-size: var(--hero-title-fs);
  font-weight: 700;
  line-height: var(--hero-title-lh);
  letter-spacing: 0;
  color: var(--text-strong);
}

.sec-hero__title-line {
  white-space: nowrap;
}

.sec-hero__title-line--hang {
  margin-left: -27px;
}

.sec-hero__lead {
  margin-top: 27px;
  font-size: var(--fs-sm);
  font-weight: 400;
  line-height: 20px;
  letter-spacing: 1.4px;
  color: var(--text-strong);
}

.sec-hero__tags {
  display: flex;
  gap: 11px;
  margin-top: 29px;
}

.sec-hero__tag {
  flex: none;
  width: 247px;
  min-height: 75px;
  padding: 8px 12px 0 30px;
  border: 1px solid var(--hero-tag-border);
  border-radius: 47px;
}

.sec-hero__tag-head {
  display: flex;
  align-items: flex-start;
  gap: 5px;
  height: 19px;
}

.sec-hero__tag-dot {
  flex: none;
  width: 12px;
  height: 12px;
  margin-top: 5px; 
}

.sec-hero__tag-title {
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: 19px;
  letter-spacing: 0.7px;
  white-space: nowrap;
  color: var(--text-strong);
}

.sec-hero__tag-desc {
  width: 200px; 
  margin-top: 2px;
  font-size: 12px;
  font-weight: 400;
  line-height: 17px;
  letter-spacing: 0.24px;
  color: var(--text-strong);
}

.sec-hero__badge {
  position: absolute;
  top: 131px;
  right: 12.65px; 
  z-index: 2;
  width: 198.35px;
  height: 198.35px;
}

.sec-hero__badge-img {
  position: absolute;
  left: -28.37px; 
  top: -23.19px; 
  width: 240px;
  max-width: none; 
  height: auto;
}

.sec-hero__instructor {
  position: absolute;
  top: 517px;
  right: 54px; 
  z-index: 2;
  width: 198px;
  color: var(--text-strong);
}

.sec-hero__instructor-en {
  display: block;
  width: 82px;
  height: 9.15px;
}

.sec-hero__instructor-role {
  display: block;
  margin-top: 2.83px;
  font-size: 18px;
  font-weight: 500;
  line-height: 26px;
  white-space: nowrap;
}

.sec-hero__instructor-name {
  display: block;
  margin-top: -5px; 
  font-size: 30px;
  font-weight: 700;
  line-height: 43px;
}

.sec-hero__logotype {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 3;
  width: 100%;
  height: 8.712vw; 
  overflow: hidden;
  pointer-events: none;
}

.sec-hero__logotype img {
  width: 100%;
  height: auto;
  margin-top: 1px;
}

.sec-hero__cta {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 35px; 
  padding-bottom: 122px; 
}

@media (max-width: 1365px) {
  
  .site-nav__menu {
    margin-left: clamp(20px, 7.76vw, 106px);
  }

  .site-nav__menu ul {
    gap: clamp(14px, 1.76vw, 24px);
  }

  .site-nav__logo {
    width: clamp(190px, 18.7vw, 256px);
  }
}

@media (min-width: 1100px) and (max-width: 1365px) {
  .site-nav__logo {
    width: clamp(168px, 13.2vw, 205px);
  }

  .site-nav__menu {
    margin-left: clamp(16px, 3.6vw, 56px);
  }

  .site-nav__menu ul {
    gap: clamp(12px, 1.35vw, 19px);
  }

  .site-nav__menu a {
    font-size: 13px;
  }

  .site-nav__cta {
    width: clamp(118px, 11.5vw, 156px);
  }
}

@media (max-width: 1099px) {
  .site-nav__menu {
    display: none;
  }
}

@media (max-width: 860px) {
  .site-nav__btn {
    display: none;
  }
}

@media (max-width: 1099px) {
  .site-nav {
    --nav-line: #9da5b0; 
  }

  
  .site-nav__bar,
  .site-nav.is-scrolled .site-nav__bar,
  .is-scrolled .site-nav__bar {
    position: relative;
    background: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .site-nav__bar::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    border-radius: inherit;
    background: var(--nav-glass);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: background-color var(--dur) var(--ease);
  }

  .is-scrolled .site-nav__bar::before {
    background: var(--nav-glass-solid);
  }

  

  
  .site-nav__toggle {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: none;
    width: 43px;
    height: 43px;
    margin-left: auto; 
    margin-right: 16px;
    padding: 0;
    border-radius: 50%;
    color: var(--nav-line);
  }

  
  .site-nav__toggle::before {
    content: "";
    position: absolute;
    inset: -1px;
  }

  .site-nav__toggle-lines,
  .site-nav__toggle-lines::before,
  .site-nav__toggle-lines::after {
    display: block;
    height: 1px;
    background: currentColor;
  }

  .site-nav__toggle-lines {
    position: relative;
    width: 23px;
  }

  .site-nav__toggle-lines::before,
  .site-nav__toggle-lines::after {
    content: "";
    position: absolute;
    left: 0;
  }

  .site-nav__toggle-lines::before {
    top: -5px;
    width: 23px;
  }

  
  .site-nav__toggle-lines::after {
    top: 5px;
    width: 18px;
  }

  

  .site-nav__panel {
    position: fixed;
    inset: 0;
    z-index: 30;
    display: flex;
    flex-direction: column;
    padding: 37px 40px 48px; 
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--surface);
    
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity calc(var(--dur) * 0.5) var(--ease),
      transform calc(var(--dur) * 0.5) var(--ease),
      visibility calc(var(--dur) * 0.5) var(--ease);
  }

  .is-nav-open .site-nav__panel {
    visibility: visible;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  
  .is-nav-open,
  .is-nav-open body {
    overflow: hidden;
  }

  .site-nav__panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: none;
    min-height: 44px;
  }

  .site-nav__panel-logo {
    width: 200px;
    height: auto;
  }

  .site-nav__close {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: none;
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    color: var(--nav-line);
  }

  .site-nav__close-icon {
    position: relative;
    display: block;
    width: 22px;
    height: 22px;
  }

  .site-nav__close-icon::before,
  .site-nav__close-icon::after {
    content: "";
    position: absolute;
    top: calc(50% - 1px);
    left: 0;
    width: 100%;
    height: 1.5px;
    background: currentColor;
  }

  .site-nav__close-icon::before {
    transform: rotate(45deg);
  }

  .site-nav__close-icon::after {
    transform: rotate(-45deg);
  }

  
  .site-nav__menu {
    display: block;
    max-width: 420px;
    margin: 24px 0 0;
  }

  .site-nav__menu ul {
    display: block;
  }

  .site-nav__menu a {
    display: flex;
    align-items: center;
    min-height: 52px; 
    padding: 8px 12px;
    font-size: var(--sp-fs-lead);
    font-weight: 500;
    line-height: 1.5;
    border-bottom: 1px solid var(--border-soft);
  }

  .site-nav__actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    height: auto;
    max-width: 420px;
    margin: 28px 0 0;
    padding: 0 12px;
  }

  .site-nav__btn {
    display: inline-flex;
    width: 100%;
    height: 52px;
    font-size: var(--sp-fs-body);
  }

  .site-nav__btn + .site-nav__btn {
    margin-left: 0;
  }

  .site-nav__cta {
    align-self: auto;
    width: 100%;
    height: 52px;
    margin-left: 0;
    border-radius: 10px;
  }
}

@media (max-width: 767px) {
  .site-nav {
    --sp-nav-top: 32px; 
    --sp-nav-h: 43px;   
  }

  .sec-hero {
    --sp-media-h: 437px;      
    --sp-badge-box: 135.47px; 
  }

  

  .site-nav {
    max-width: none;
    padding: var(--sp-nav-top) var(--sp-gutter) 0;
    
    margin-bottom: calc((var(--sp-nav-top) + var(--sp-nav-h)) * -1);
  }

  
  .site-nav__bar,
  .site-nav.is-scrolled .site-nav__bar,
  .is-scrolled .site-nav__bar {
    height: var(--sp-nav-h);
    padding-left: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
    pointer-events: none;
  }

  
  .site-nav__bar::before {
    content: none;
  }

  
  .site-nav__logo {
    pointer-events: auto;
    display: flex;
    align-items: center;
    flex: 1 1 auto;
    width: auto;
    height: 100%;
    margin-right: 9px;   
    padding-left: 12px;  
    border-radius: 10px; 
    
    background: var(--nav-glass);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    box-shadow: none;
  }

  
  .is-scrolled .site-nav__logo {
    background: var(--nav-glass-solid);
    box-shadow: var(--shadow-soft);
  }

  .site-nav__logo img {
    flex: none;
    width: 144.8px; 
    height: 13px;
    margin-bottom: 2px; 
  }

  
  .site-nav__toggle {
    pointer-events: auto;
    margin-right: 0;
    background: var(--surface);
  }

  
  .site-nav__panel {
    padding: var(--sp-nav-top) var(--sp-gutter) 40px;
  }

  .site-nav__panel-head {
    height: var(--sp-nav-h);
    padding-left: 12px;
  }

  .site-nav__panel-logo {
    width: 144.8px;
    height: 13px;
  }

  .site-nav__menu,
  .site-nav__actions {
    max-width: none;
  }

  

  
  .sec-hero__stage {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  .sec-hero__copy {
    padding: 98px var(--sp-gutter) 23px; 
  }

  .sec-hero__title-line--pc,
  .sec-hero__lead--pc {
    display: none;
  }

  .sec-hero__title-line--sp,
  .sec-hero__lead--sp {
    display: block;
  }

  
  .sec-hero__title {
    gap: 0;
    font-size: min(var(--sp-fs-hero), 8.54vw); 
    line-height: min(42px, 11.21vw);
  }

  .sec-hero__lead {
    margin-top: 19px;             
    font-size: var(--sp-fs-body); 
    line-height: 20.27px;
    letter-spacing: 1.4px;
  }

  

  .sec-hero__tags {
    flex-direction: column;
    gap: 8px;           
    margin-top: 18.5px; 
  }

  .sec-hero__tag {
    width: 100%;
    min-height: 51px;
    
    padding: 5px 11px 0 21px;
    border-radius: 25.5px; 
  }

  .sec-hero__tag-head {
    gap: 4px; 
  }

  .sec-hero__tag-dot {
    margin-top: 6px; 
  }

  .sec-hero__tag-title {
    font-size: var(--sp-fs-lead); 
    letter-spacing: 0.8px;
  }

  .sec-hero__tag-desc {
    width: auto;
    margin-top: 4px; 
  }

  

  .sec-hero__media {
    height: var(--sp-media-h);
  }

  
  .sec-hero__photo {
    object-position: 54% 50%;
  }

  

  .sec-hero__badge {
    top: auto;
    
    bottom: calc(var(--sp-media-h) - 9px - var(--sp-badge-box));
    right: 1.27px; 
    width: var(--sp-badge-box);
    height: var(--sp-badge-box);
  }

  
  .sec-hero__badge-img {
    left: -19.38px; 
    top: -15.84px; 
    width: 158px;
  }

  

  .sec-hero__instructor {
    top: auto;
    bottom: 20px; 
    right: 11px;  
    left: auto;
    width: auto;
  }

  .sec-hero__instructor-en {
    width: 117.8px;
    height: 13.2px;
  }

  .sec-hero__instructor-role {
    margin-top: 5.8px;            
    font-size: var(--sp-fs-body); 
    font-weight: 700;             
    line-height: 20.27px;
    letter-spacing: 0.28px;
  }

  .sec-hero__instructor-name {
    margin-top: 0; 
    font-size: var(--sp-fs-h3); 
    line-height: 28.96px;
    letter-spacing: 1px;
  }

  

  .sec-hero__logotype {
    top: auto;
    bottom: 0;
    left: -1px; 
    width: 39px;
    height: var(--sp-media-h);
    max-height: none;
  }

  .sec-hero__logotype img {
    width: 100%;
    height: 100%;
    margin-top: 0;
  }

  

  .sec-hero__cta {
    flex-direction: column;
    gap: 12px;
    margin-top: 32px;
    padding: 0 var(--sp-gutter) 56px;
  }
}

.site-nav--sub {
  margin-bottom: 0; 
}

.site-nav--sub .site-nav__bar {
  background: var(--surface);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.site-nav--sub.is-scrolled .site-nav__bar,
.is-scrolled .site-nav--sub .site-nav__bar {
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.site-nav--sub .site-nav__btn {
  width: 153px;
}