.concept-contact__details .whatsapp-contact { border-color: #a6d8b7; background: #edf8f0; }
.concept-contact__details .whatsapp-contact i { color: #176f3a; background: #d6efde; }
.lesson-whatsapp { padding: 0 clamp(20px, 5vw, 72px) 32px; }
.lesson-whatsapp .whatsapp-contact { display: flex; align-items: center; gap: 14px; width: fit-content; max-width: 100%; margin: 0 auto; padding: 18px 22px; border: 1px solid #a6d8b7; border-radius: 18px; color: #173c26; background: #edf8f0; text-decoration: none; }
.lesson-whatsapp .whatsapp-contact i { display: grid; place-items: center; flex: 0 0 auto; }
.lesson-whatsapp .whatsapp-contact span { display: grid; gap: 5px; }
.lesson-whatsapp .whatsapp-contact small { font-size: 13px; line-height: 1.5; }
.whatsapp-contact:focus-visible { outline: 3px solid #173aa4; outline-offset: 4px; }
.measurement-preferences { position: fixed; z-index: 25; bottom: 12px; right: 12px; max-width: calc(100vw - 24px); padding: 8px 12px; border: 1px solid #cbd1e2; border-radius: 8px; background: #fff; color: #28304b; font-size: 11px; cursor: pointer; }
.concept-form__contact-preference { display: grid; gap: 8px; }
.concept-form__contact-preference > span { font-size: 13px; font-weight: 700; }
.concept-form__contact-preference select { width: 100%; min-height: 48px; padding: 12px 15px; border: 1px solid #cbd1e2; border-radius: 10px; color: #28304b; background: #fff; font: inherit; }
.concept-form__choice { display: grid; gap: 8px; }
.concept-form__choice > span { font-size: 13px; font-weight: 700; }
.concept-form__choice select { width: 100%; min-height: 48px; padding: 12px 15px; border: 1px solid #cbd1e2; border-radius: 10px; color: #28304b; background: #fff; font: inherit; }
.concept-form__help { margin: -4px 0 4px; color: #46506d; font-size: 13px; line-height: 1.6; }
.concept-form__help a { color: #176f3a; text-decoration: underline; }
.concept-form__price { margin: 0; padding: 12px 15px; border-radius: 10px; background: #edf8f0; color: #173c26; font-size: 14px; font-weight: 650; line-height: 1.6; }
.concept-form [hidden] { display: none !important; }

/* Spacious photo-led hero, with compact copy and a full-width facts strip. */
html body .concept-hero--home {
  min-height: 100vh;
  min-height: 100svh;
  height: auto;
  box-sizing: border-box;
  align-items: center;
  padding: 124px 0 36px;
  background: #f7f8fc;
}
html body .concept-hero--home .concept-hero__grid,
body[data-page="home"] .concept-nav__inner {
  width: min(calc(100% - 64px), 1640px);
  margin-inline: auto;
}
html body .concept-hero--home .concept-hero__grid {
  display: grid;
  gap: 28px;
}
html body .concept-hero--home .concept-hero__carousel {
  display: grid;
  order: 0;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-rows: auto;
  align-items: center;
  gap: clamp(40px, 4vw, 72px);
  width: 100%;
  max-width: none;
  margin: 0;
  position: relative;
}
html body .concept-hero--home .concept-hero__slides {
  grid-area: 1 / 2;
  position: relative;
  inset: auto;
  width: 100%;
  max-width: none;
  height: auto;
  aspect-ratio: 4 / 3;
  align-self: center;
  border: 2px solid #fff;
  border-radius: 24px;
  box-shadow: 0 14px 32px #1724511c;
}
html body .concept-hero--home .concept-hero__slides img { object-position: center center !important; }
html body .concept-hero--home .concept-hero__slides figure {
  transform: none;
  transition: opacity .65s ease;
}
html body .concept-hero--home .concept-hero__overlay,
html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__overlay {
  min-height: 0;
  height: auto;
  padding: 0;
  align-items: flex-start;
  justify-content: center;
  text-align: left;
  gap: 0;
}
html body .concept-page .concept-hero--home .concept-hero__overlay h1,
html body .concept-page[data-locale=zh] .concept-hero--home .concept-hero__overlay h1 {
  width: 100%;
  max-width: none;
  margin: 0;
  font-size: clamp(44px, 4.5vw, 86px);
  line-height: 1.12;
  letter-spacing: -.045em;
  text-align: left;
}
html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__overlay h1 {
  max-width: none;
  margin: 0;
  font-size: clamp(38px, 3.7vw, 70px);
  line-height: 1.06;
  letter-spacing: -.04em;
  text-align: left;
}
html body .concept-hero--home .concept-hero__promise,
html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__promise {
  max-width: none;
  margin: 26px 0 32px;
  font-size: clamp(18px, 1.4vw, 26px);
  font-weight: 400;
  line-height: 1.7;
  color: #252936;
  text-align: left;
}
html body .concept-hero--home .yohon-hero-copy-line { display: block; }
html body .concept-hero--home .concept-hero__home-actions,
html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__home-actions {
  margin: 0;
  width: 100%;
  max-width: none;
  flex-flow: row nowrap;
  justify-content: flex-start;
  gap: clamp(14px, 1.6vw, 30px);
}
html body .concept-hero--home .concept-booking-trigger,
html body .concept-hero--home .concept-account-trigger,
html body .concept-page[data-locale=en] .concept-hero--home .concept-booking-trigger {
  min-width: 0;
  min-height: clamp(58px, 4.1vw, 76px);
  padding: 16px 18px;
  border-radius: 8px;
  font-size: clamp(14px, 1.2vw, 21px);
  letter-spacing: 0;
  box-shadow: none;
}
html body .concept-hero--home .concept-booking-trigger {
  color: #fff;
  background: linear-gradient(135deg, #405bd5, #4057c7);
  border: 1px solid #4059ce;
}
html body .concept-hero--home .concept-account-trigger {
  background: #ffffffcc;
  color: #24399e;
  border: 1px solid #6373d3;
}
html body .concept-hero--home .concept-booking-trigger:hover { background: #354dc0; }
html body .concept-hero--home .concept-account-trigger:hover { background: #eef1ff; color: #24399e; transform: none; }
html body .concept-hero--home .concept-hero__slides:after {
  inset: 70% 0 0;
  background: linear-gradient(transparent, #080a1e8c);
}
html body .concept-hero--home .concept-hero__carousel-controls {
  grid-template-columns: auto 1fr auto;
  bottom: 20px;
  left: 20px;
  right: 20px;
  gap: 14px;
}
html body .concept-hero--home .concept-hero__carousel-arrows button {
  width: clamp(38px, 3.2vw, 56px);
  height: clamp(38px, 3.2vw, 56px);
  border-radius: 12px;
}
html body .concept-hero--home .concept-hero__carousel-dots { gap: 8px; }
html body .concept-hero--home .concept-hero__carousel-dots button { width: clamp(18px, 1.7vw, 30px); height: 5px; }
html body .concept-hero--home .concept-hero__carousel-dots button[aria-selected=true] { width: clamp(26px, 2.5vw, 44px); }
html body .concept-hero--home .concept-hero__carousel-controls > span { display: block; font-size: 13px; }
html body .concept-hero--home .concept-hero__carousel-controls > span b { font-size: clamp(20px, 1.8vw, 30px); }
html body .concept-hero--home .yohon-home-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: 100%;
  padding: 24px 0;
  border: 1px solid #d5daea;
  border-radius: 18px;
  background: #ffffffdb;
  box-shadow: 0 6px 16px #202e6310;
}
html body .concept-hero--home .yohon-home-stats article {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 20px;
  text-align: center;
}
html body .concept-hero--home .yohon-home-stats article + article { border-left: 1px solid #d5daea; }
html body .concept-hero--home .yohon-home-stats strong {
  color: #242d8b;
  font-family: var(--display);
  font-size: clamp(32px, 2.8vw, 52px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -.035em;
}
html body .concept-hero--home .yohon-home-stats article > span {
  color: #606981;
  font-size: clamp(13px, 1.1vw, 20px);
  line-height: 1.4;
  letter-spacing: .025em;
}
@media (max-height: 800px) and (min-width: 961px) {
  html body .concept-hero--home { padding-top: 112px; padding-bottom: 24px; }
  html body .concept-hero--home .concept-hero__grid { gap: 22px; max-width: min(1640px, calc((100svh - 245px) * 2.6667 + 48px)); }
  html body .concept-hero--home .yohon-home-stats { padding-block: 18px; }
  html body .concept-hero--home .concept-hero__promise { margin: 22px 0 28px; }
}
@media (max-width: 1100px) and (min-width: 961px) {
  html body .concept-hero--home .concept-hero__carousel { gap: 32px; }
  html body .concept-page[data-locale=zh] .concept-hero--home .concept-hero__overlay h1 { font-size: 42px; }
  html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__overlay h1 { font-size: 38px; }
  html body .concept-hero--home .concept-hero__promise,
  html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__promise { font-size: 17px; margin: 20px 0 26px; }
  html body .concept-hero--home .concept-booking-trigger,
  html body .concept-hero--home .concept-account-trigger { padding-inline: 10px; font-size: 13px; }
}
@media (max-width: 960px) {
  html body .concept-page[data-locale] .concept-hero--home { padding: 114px 0 36px; }
  html body .concept-hero--home .concept-hero__grid,
  body[data-page="home"] .concept-nav__inner { width: calc(100% - 40px); }
  html body .concept-hero--home .concept-hero__grid { gap: 24px; }
  html body .concept-hero--home .concept-hero__carousel { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto; gap: 28px; }
  html body .concept-hero--home .concept-hero__slides { grid-area: 2 / 1; width: 100%; height: auto; aspect-ratio: 4 / 3; justify-self: center; }
  html body .concept-hero--home .concept-hero__overlay,
  html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__overlay { height: auto; padding: 0; }
  html body .concept-page[data-locale=zh] .concept-hero--home .concept-hero__overlay h1 { font-size: clamp(30px, 6.4vw, 52px); line-height: 1.18; }
  html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__overlay h1 { font-size: clamp(34px, 6.4vw, 48px); }
  html body .concept-hero--home .concept-hero__promise,
  html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__promise { margin: 20px 0 24px; font-size: 18px; line-height: 1.65; }
  html body .concept-hero--home .concept-hero__home-actions,
  html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__home-actions { max-width: 640px; }
  html body .concept-hero--home .yohon-home-stats { padding-block: 20px; }
}
@media (max-width: 520px) {
  html body .concept-page[data-locale] .concept-hero--home { padding-top: 104px; }
  html body .concept-hero--home .concept-hero__slides { border-radius: 18px; }
  html body .concept-hero--home .concept-hero__promise,
  html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__promise { font-size: 16px; line-height: 1.7; }
  html body .concept-hero--home .concept-hero__home-actions,
  html body .concept-page[data-locale=en] .concept-hero--home .concept-hero__home-actions { flex-direction: column; max-width: none; gap: 12px; }
  html body .concept-hero--home .concept-booking-trigger,
  html body .concept-hero--home .concept-account-trigger { min-height: 52px; font-size: 15px; }
  html body .concept-hero--home .concept-hero__carousel-controls { bottom: 12px; left: 12px; right: 12px; gap: 10px; }
  html body .concept-hero--home .concept-hero__carousel-arrows { gap: 5px; }
  html body .concept-hero--home .concept-hero__carousel-arrows button { width: 32px; height: 32px; border-radius: 9px; }
  html body .concept-hero--home .concept-hero__carousel-dots { gap: 5px; }
  html body .concept-hero--home .concept-hero__carousel-dots button { width: 13px; height: 4px; }
  html body .concept-hero--home .concept-hero__carousel-dots button[aria-selected=true] { width: 21px; }
  html body .concept-hero--home .concept-hero__carousel-controls > span { font-size: 10px; }
  html body .concept-hero--home .concept-hero__carousel-controls > span b { font-size: 17px; }
  html body .concept-hero--home .yohon-home-stats { padding-block: 18px; border-radius: 14px; }
  html body .concept-hero--home .yohon-home-stats article { padding-inline: 8px; gap: 6px; }
  html body .concept-hero--home .yohon-home-stats strong { font-size: clamp(20px, 6vw, 26px); }
  html body .concept-hero--home .yohon-home-stats article > span { font-size: 11px; line-height: 1.5; }
}

/* A consistent outline and payment treatment across the homepage catalogs. */
body[data-page="home"] #courses.popular-courses .course-price-card {
  border: 1px solid #a5aff1;
  border-radius: 15px;
  background: #fff;
  box-shadow: 0 3px 10px #253b8510;
  transition: border-color .2s ease, box-shadow .2s ease;
}
body[data-page="home"] #courses.popular-courses .course-price-card::before { content: none; }
body[data-page="home"] .concept-page[data-locale="en"] #courses.popular-courses .course-price-card h3 {
  white-space: normal;
  min-height: 2.56em;
}
body[data-page="home"] #courses.popular-courses .course-price-card__price {
  border-top-color: #e4e8f3;
  border-bottom: 0;
}
body[data-page="home"] #courses.popular-courses .course-price-card li { border-bottom: 0; }
body[data-page="home"] #courses.popular-courses .course-price-card__checkout button {
  width: 100%;
  min-height: 48px;
  padding: 13px 14px;
  border: 1px solid #4059ce;
  border-radius: 11px;
  background: linear-gradient(135deg, #405bd5, #4057c7);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  gap: 10px;
  box-shadow: 0 2px 4px #344cba12;
  transform: none;
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
body[data-page="home"] #courses.popular-courses .course-price-card__checkout button:focus-visible {
  outline: 3px solid #1d318f;
  outline-offset: 3px;
}
body[data-page="home"] #courses.popular-courses .course-price-card__checkout button:disabled {
  opacity: .68;
  cursor: wait;
  box-shadow: none;
}
@media (hover: hover) and (pointer: fine) {
  body[data-page="home"] #courses.popular-courses .course-price-card:hover {
    border-color: #7e8ce5;
    box-shadow: 0 8px 22px #253b8514;
    transform: none;
  }
  body[data-page="home"] #courses.popular-courses .course-price-card__checkout button:hover:not(:disabled) {
    border-color: #3148b6;
    background: linear-gradient(135deg, #354ec6, #3449b6);
    box-shadow: 0 4px 10px #344cba26;
  }
}
@media (prefers-reduced-motion: reduce) {
  body[data-page="home"] #courses.popular-courses .course-price-card,
  body[data-page="home"] #courses.popular-courses .course-price-card__checkout button { transition: none; }
}