/* ========================================
   main-scroll (hero + problem 통합 pin)
   ======================================== */

html {
  overflow-x: clip;
}

body {
  overflow-x: clip;
  max-width: 100%;
}

.pin-spacer {
  max-width: 100% !important;
}

.main-scroll {
  width: 100%;
  max-width: 120rem; /* 1920px */
  margin-inline: auto;
}

.main-scroll__viewport {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.main-scroll__track {
  width: 100%;
  will-change: transform;
}

/* ========================================
   main-hero
   ======================================== */

.main-hero {
  width: 100%;
  height: 100vh;
}

.main-hero__frame {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.main-hero__media {
  position: absolute;
  inset: 0;
}

.main-hero__image,
.main-hero__media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

.main-hero__container {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-hero__title {
  position: relative;
  margin: 0;
  font-family: var(--font-paperlogy);
  font-weight: 900;
  font-size: var(--fs-extra-large); /* 64px */
  letter-spacing: 0.1em; /* 10% */
  line-height: 1.4;
  text-align: center;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

.main-hero__stroke,
.main-hero__fill {
  display: block;
}

.main-hero__stroke {
  color: transparent;
  -webkit-text-fill-color: transparent;
  -webkit-text-stroke: 0.0625rem var(--color-brand-light-2); /* 1px */
  paint-order: stroke fill;
}

.main-hero__fill {
  position: absolute;
  top: 0;
  right: 0;
  bottom: -0.35em;
  left: 0;
  color: var(--color-brand-light-2);
  -webkit-text-fill-color: var(--color-brand-light-2);
  /* stroke와 동일 윤곽 유지 + 가장자리 이중 렌더 완화 */
  -webkit-text-stroke: 0.0625rem var(--color-brand-light-2);
  paint-order: stroke fill;
  pointer-events: none;
  transform: translateZ(0);
  backface-visibility: hidden;
  /* clip-path 하드 컷 대신 mask로 부드러운 채움 경계 */
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 0%, transparent 0%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 0%, transparent 0%);
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
}

@media (prefers-reduced-motion: reduce) {
  .main-hero__fill {
    -webkit-mask-image: none;
    mask-image: none;
  }
}

@media (min-width: 48rem) and (max-width: 63.9375rem) {
  .main-hero,
  .main-hero__frame,
  .main-hero__media,
  .main-hero__image,
  .main-problem,
  .main-problem__item,
  .main-problem__media,
  .main-problem__image {
    width: 100%;
  }

  .main-hero,
  .main-hero__frame,
  .main-hero__media {
    height: 100vh;
  }

  .main-hero__image,
  .main-hero__media video,
  .main-problem__image {
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .main-hero__title {
    font-size: 3.625rem; /* 58px */
  }

}

@media (max-width: 47.9375rem) {
  .main-hero,
  .main-hero__frame,
  .main-hero__media,
  .main-hero__image,
  .main-problem,
  .main-problem__item,
  .main-problem__media,
  .main-problem__image {
    width: 100%;
  }

  .main-hero,
  .main-hero__frame,
  .main-hero__media {
    height: 100vh;
  }

  .main-hero__image,
  .main-hero__media video,
  .main-problem__image {
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .main-hero__title {
    font-size: 2rem; /* 32px */
  }
}

/* ========================================
   main-problem
   ======================================== */

.main-problem {
  width: 100%;
}

.main-problem__item {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.main-problem__media {
  position: absolute;
  inset: 0;
}

.main-problem__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}

.main-problem__dim {
  position: absolute;
  inset: 0;
  background-color: #000;
  pointer-events: none;
}

.main-problem__dim--25 {
  opacity: 0.25;
}

.main-problem__dim--30 {
  opacity: 0.3;
}

.main-problem__dim--20 {
  opacity: 0.2;
}

.main-problem__container {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-problem__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: var(--color-brand-light-2);
}

.main-problem__number,
.main-problem__title,
.main-problem__desc {
  margin: 0;
  color: var(--color-brand-light-2);
  will-change: transform, opacity;
}

@media (prefers-reduced-motion: reduce) {
  .main-problem__number,
  .main-problem__title,
  .main-problem__desc {
    will-change: auto;
  }
}

.main-problem__number {
  font-family: var(--font-suit);
  font-weight: var(--fw-suit-bold);
  font-size: var(--fs-title); /* 40px */
  line-height: 1.3;
}

.main-problem__title {
  margin-top: 1.1rem;
  font-family: var(--font-suit);
  font-weight: var(--fw-suit-bold);
  font-size: var(--fs-title); /* 40px */
  line-height: 1.3;
}

.main-problem__desc {
  margin-top: 0.625rem; /* 10px */
  font-family: var(--font-suit);
  font-weight: 400;
  font-size: var(--fs-body-02); /* 22px */
  line-height: 1.3;
}

/* ========================================
   main-problem-nav
   ======================================== */

.main-problem-nav {
  position: fixed;
  top: 50%;
  right: 3rem; /* 120px — PC grid margin */
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem; /* 20px */
  padding: 1.9rem 1rem; /* 30px 26px */
  border-radius: 5rem; /* 20px */
  /* border: 0.0625rem solid rgba(255, 255, 255, 0.35); */
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.01) 30%
  );
  box-shadow:
    inset 0.0625rem 0.0625rem 0 rgba(255, 255, 255, 0.45),
    inset -0.0625rem -0.0625rem 0 rgba(255, 255, 255, 0.08),
    0 0.5rem 1.5rem rgba(0, 0, 0, 0.18);
  -webkit-backdrop-filter: blur(0.984375rem); /* frost 63 ≈ 15.75px */
  backdrop-filter: blur(0.2rem);
}

body.is-main-scroll-nav-visible .main-problem-nav {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.main-problem-nav__item {
  margin: 0;
  padding: 0;
  border: none;
  background: transparent;
  font-family: var(--font-suit);
  font-weight: 400;
  font-size: var(--fs-body-05); /* 16px */
  line-height: 1;
  letter-spacing: 0.05em;
  color: #fff;
  opacity: 0.4;
  cursor: pointer;
  transition: opacity 0.35s ease, font-weight 0.35s ease;
}

.main-problem-nav__item.is-active {
  font-weight: var(--fw-suit-bold); /* 600 */
  opacity: 1;
}

/* ========================================
   main-problem-arrow
   ======================================== */

.main-problem-arrow {
  display: none;
}

@media (min-width: 48rem) and (max-width: 63.9375rem) {
  .main-problem__number,
  .main-problem__title {
    font-size: var(--fs-title); /* Title03 32px */
  }

  .main-problem__desc {
    font-size: 1.25rem; /* PC Body03 20px */
  }
}

@media (max-width: 63.9375rem) {
  .main-problem-nav {
    right: 1.25rem; /* 20px */
    gap: 0.9375rem; /* 15px */
    padding: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .main-problem__content {
    width: 100%;
    padding-inline: var(--grid-margin);
    padding-right: 2.5rem; /* 40px — 페이지네이션 여백 */
    box-sizing: border-box;
  }

  .main-problem-nav__item {
    display: block;
    width: 0.375rem; /* 6px */
    height: 0.375rem; /* 6px */
    overflow: hidden;
    border-radius: 6.25rem;
    background-color: #fff;
    opacity: 1;
    font-size: 0;
    color: transparent;
    transition:
      width 0.4s cubic-bezier(0.22, 1, 0.36, 1),
      height 0.4s cubic-bezier(0.22, 1, 0.36, 1),
      background-color 0.4s ease;
  }

  .main-problem-nav__item.is-active {
    width: 0.375rem; /* 6px */
    height: 1.25rem; /* 20px */
    background-color: var(--color-brand-dark);
    font-weight: 400;
    opacity: 1;
  }
}

@media (max-width: 47.9375rem) {
  .main-problem-nav {
    display: none;
  }

  .main-problem-arrow {
    display: block;
    position: fixed;
    bottom: 2rem; /* 32px */
    left: 50%;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-50%);
    transition: opacity 0.35s ease, visibility 0.35s ease;
  }

  body.is-main-scroll-nav-visible .main-problem-arrow {
    opacity: 1;
    visibility: visible;
  }

  .main-problem-arrow__image {
    display: block;
    width: 2rem; /* 32px */
    height: 2.5rem; /* 40px */
    animation: main-problem-arrow-bob 2s ease-in-out infinite;
  }

  .main-problem__number,
  .main-problem__title {
    font-size: 1.5rem; /* 24px */
  }

  .main-problem__content {
    padding-inline: var(--grid-margin);
  }

  .main-problem__desc {
    font-size: var(--fs-body-03); /* Body03 16px */
    max-width: 16.25rem; /* 260px — mo 줄바꿈·여백 조절 */
    word-break: keep-all;
    text-wrap: pretty;
    max-width: 21.875rem; /* 350px — 한글 단어 중간 줄바꿈·고아 글자 방지 */
  }
}

@keyframes main-problem-arrow-bob {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(0.5rem); /* 8px */
  }
}

@media (prefers-reduced-motion: reduce) {
  .main-problem-arrow__image {
    animation: none;
    
  }
}

@media (min-width: 64rem) {
  .heading-3tier__desc-break {
    display: none;
  }
}

body.is-main-scroll-pinned .site-header:not(.is-menu-open) {
  transform: translateY(-100%);
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .main-scroll__track {
    will-change: auto;
  }
}

/* ========================================
   main-mattress-solution
   ======================================== */

.main-mattress-solution {
  width: 100%;
  max-width: 120rem; /* 1920px */
  margin-inline: auto;
}

.main-mattress-solution__viewport {
  display: flex;
  align-items: stretch;
  gap: 7.125rem; /* 114px — content ↔ image */
  width: 100%;
  height: 100vh;
  box-sizing: border-box;
  padding-left: var(--grid-margin);
}

.main-mattress-solution__content {
  position: relative;
  flex: 0 0 auto;
  width: 32.9375rem; /* 527px — icon 141px × 3 + gap 52px × 2 */
  height: 100%;
}

.main-mattress-solution__panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20rem;
  box-sizing: border-box;
  pointer-events: none;
}

.main-mattress-solution__panel.is-active {
  pointer-events: auto;
}

.main-mattress-solution__heading {
  align-items: flex-start;
  text-align: left;
}

.main-mattress-solution__heading .heading-3tier__title {
  font-weight: 400;
}

.main-mattress-solution__features {
  display: flex;
  align-items: flex-start;
  gap: 2.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  opacity: 0;
  will-change: transform, opacity;
}

.main-mattress-solution__feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem; /* 16px */
  width: 8.8125rem; /* 141px — 아이콘 너비에 맞춤 */
}

.main-mattress-solution__icon {
  display: block;
  width: 8.8125rem; /* 141px */
  height: 7.75rem; /* 124px */
  object-fit: contain;
}

.main-mattress-solution__label {
  margin: 0;
  width: 100%;
  font-family: var(--font-suit);
  font-weight: 400;
  font-size: 1.125rem; /* 18px */
  line-height: 1.3;
  color: var(--color-brand-point);
  text-align: center;
}

.main-mattress-solution__media {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
}

.main-mattress-solution__scrollbar {
  position: absolute;
  top: 0;
  left: -0.25rem; /* 4px — 이미지 바깥 왼쪽에 붙임 */
  z-index: 2;
  width: 0.25rem; /* 4px */
  height: 100%;
  pointer-events: none;
}

.main-mattress-solution__thumb {
  display: block;
  width: 100%;
  height: calc(100vh / 3);
  background-color: var(--color-brand-dark);
  will-change: transform;
}

.main-mattress-solution__images {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.main-mattress-solution__image {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.main-mattress-solution__nav {
  display: none;
}

@media (min-width: 48rem) and (max-width: 63.9375rem) {
  .main-mattress-solution,
  .main-mattress-solution__viewport {
    height: 100%;
  }

  .main-mattress-solution__viewport {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6.25rem 0; /* 100px 위아래 */
  }

  .main-mattress-solution__content {
    width: 100%;
    height: auto;
    padding-inline: var(--grid-margin);
    margin-bottom: 2.5rem; /* 40px — 텍스트 ↔ 이미지 */
  }

  .main-mattress-solution__panel {
    align-items: flex-start;
    gap: 1.25rem; /* 20px — heading ↔ features */
    justify-content: flex-start;
  }

  .main-mattress-solution__panel.is-active {
    position: relative;
  }

  .main-mattress-solution__heading {
    align-items: flex-start;
    text-align: left;
  }

  .main-mattress-solution__heading .heading-3tier__sub-title {
    font-family: var(--font-suit);
    font-weight: 400;
    font-size: var(--fs-body-03); /* 18px */
  }

  .main-mattress-solution__heading .heading-3tier__title {
    font-weight: 500; /* Title02 Medium */
    font-size: var(--fs-title); /* 32px */
    text-align: left;
  }

  .main-mattress-solution__features {
    width: 100%;
    justify-content: space-between;
    gap: 3.125rem; /* 50px */
  }

  .main-mattress-solution__feature {
    width: 9.375rem; /* 150px */
  }

  .main-mattress-solution__icon {
    width: 9.375rem; /* 150px */
    height: 7.75rem; /* 124px */
  }

  .main-mattress-solution__label {
    font-size: 1.125rem; /* 18px */
  }

  .main-mattress-solution__media {
    flex: none;
    width: 100%;
    height: 39.1875rem; /* 627px */
  }

  .main-mattress-solution__scrollbar {
    display: none;
  }

  .main-mattress-solution__nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 0.9375rem; /* 15px */
    margin-top: 1.25rem; /* 20px — 이미지 ↔ 페이지네이션 */
  }
}

@media (max-width: 47.9375rem) {
  .main-mattress-solution,
  .main-mattress-solution__viewport {
    height: 100%;
  }

  .main-mattress-solution__viewport {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6.25rem 0; /* 100px 위아래 */
  }

  .main-mattress-solution__content {
    width: 100%;
    height: auto;
    padding-inline: var(--grid-margin);
    margin-bottom: 3.125rem; /* 50px — 텍스트 ↔ 이미지 */
  }

  .main-mattress-solution__panel {
    align-items: flex-start;
    gap: 1.25rem; /* 20px — heading ↔ features */
    justify-content: flex-start;
  }

  .main-mattress-solution__panel.is-active {
    position: relative;
  }

  .main-mattress-solution__heading {
    align-items: flex-start;
    text-align: left;
  }

  .main-mattress-solution__heading .heading-3tier__sub-title {
    font-family: var(--font-paperlogy);
    font-weight: 400;
    font-size: var(--fs-body-03); /* P-Body03 16px */
  }

  .main-mattress-solution__heading .heading-3tier__title {
    font-weight: 500; /* Title02 Medium */
    font-size: var(--fs-title); /* 28px */
    text-align: left;
  }

  .main-mattress-solution__features {
    justify-content: flex-start;
    gap: 3.125rem; /* 50px */
  }

  .main-mattress-solution__feature {
    width: 5rem; /* 80px */
  }

  .main-mattress-solution__icon {
    width: 5rem; /* 80px */
    height: 4.125rem; /* 66px */
  }

  .main-mattress-solution__label {
    font-size: var(--fs-body-04); /* 14px */
  }

  .main-mattress-solution__media {
    flex: none;
    width: 100%;
    height: 22.125rem; /* 354px */
  }

  .main-mattress-solution__scrollbar {
    display: none;
  }

  .main-mattress-solution__nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 0.9375rem; /* 15px */
    margin-top: 1.25rem; /* 20px — 이미지 ↔ 페이지네이션 */
  }
}

@media (max-width: 63.9375rem) {
  .main-mattress-solution__nav-item,
  .main-pillow-solution__nav-item,
  .main-bedding-solution__nav-item {
    display: block;
    width: 0.375rem; /* 6px */
    height: 0.375rem; /* 6px */
    padding: 0;
    overflow: hidden;
    border: none;
    border-radius: 6.25rem;
    background-color: var(--color-grey-400);
    cursor: pointer;
    font-size: 0;
    color: transparent;
    transition:
      width 0.4s cubic-bezier(0.22, 1, 0.36, 1),
      height 0.4s cubic-bezier(0.22, 1, 0.36, 1),
      background-color 0.4s ease;
  }

  .main-mattress-solution__nav-item.is-active,
  .main-pillow-solution__nav-item.is-active,
  .main-bedding-solution__nav-item.is-active {
    width: 1.25rem; /* 20px */
    height: 0.375rem; /* 6px */
    background-color: var(--color-brand-dark);
  }
}

/* ========================================
   main-heating-solution
   ======================================== */

.main-heating-solution {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.main-heating-solution::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background-color: rgb(255 255 255 / 20%); /* #fff 20% — 섹션 전체 */
  pointer-events: none;
}

.main-heating-solution__media {
  position: absolute;
  inset: 0;
}

.main-heating-solution__image,
.main-heating-solution__video {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}

.main-heating-solution__container {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.main-heating-solution__heading {
  align-items: flex-end;
  width: auto;
  text-align: right;
}

.main-heating-solution__emphasis {
  font-weight: var(--fw-suit-bold);
}

@media (min-width: 48rem) and (max-width: 63.9375rem) {
  .main-heating-solution,
  .main-heating-solution__media,
  .main-heating-solution__image,
  .main-heating-solution__video {
    width: 100%;
  }

  .main-heating-solution__image,
  .main-heating-solution__video {
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .main-heating-solution__heading .heading-3tier__sub-title {
    font-family: var(--font-paperlogy);
    font-size: var(--fs-body-03); /* P-Body03 18px */
  }

  .main-heating-solution__heading .heading-3tier__title {
    font-size: var(--fs-title); /* Title03 32px */
  }

  .main-heating-solution__heading .heading-3tier__desc {
    font-weight: 400;
    font-size: var(--fs-body-02); /* Body02 20px */
  }
}

@media (max-width: 47.9375rem) {
  .main-heating-solution,
  .main-heating-solution__media,
  .main-heating-solution__image,
  .main-heating-solution__video {
    width: 100%;
  }

  .main-heating-solution__image,
  .main-heating-solution__video {
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .main-heating-solution__heading .heading-3tier__sub-title {
    font-family: var(--font-paperlogy);
    font-size: var(--fs-body-03); /* P-Body03 16px */
  }

  .main-heating-solution__heading .heading-3tier__title {
    font-size: var(--fs-title); /* Title03 28px */
  }

  .main-heating-solution__heading .heading-3tier__desc {
    font-weight: 400;
    font-size: var(--fs-body-03); /* Body03 16px */
  }
}

/* ========================================
   main-pillow-solution
   ======================================== */

.main-pillow-solution {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2.5rem; /* 40px — heading ↔ cards */
  box-sizing: border-box;
  width: 100%;
  max-width: 120rem; /* 1920px */
  height: auto;
  margin-inline: auto;
  padding-block: 6.25rem; /* 100px 위아래 */
}

.main-pillow-solution__container {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
}

.main-pillow-solution__heading {
  align-items: center;
  text-align: center;
}

.main-pillow-solution__cards {
  display: flex;
  flex: 0 0 auto;
  gap: 0.125rem; /* 2px */
  width: 105rem; /* 1680px */
  max-width: calc(100% - (var(--grid-margin) * 2));
  height: 37.5rem; /* 600px */
  margin-inline: auto;
  overflow: hidden;
}

.main-pillow-solution__card {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  overflow: hidden;
  transition: flex 0.9s cubic-bezier(0.33, 0, 0.2, 1); /* 카드(이미지) 펼침·복귀 속도 */
}

.main-pillow-solution__card:hover,
.main-pillow-solution__card:focus-within {
  flex: 0 0 60rem; /* 960px */
}

.main-pillow-solution__image {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}

.main-pillow-solution__card::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(to top, rgba(51, 51, 51, 0.4), transparent);
}

.main-pillow-solution__label {
  position: absolute;
  right: 0;
  bottom: 3.125rem; /* 50px */
  left: 0;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  margin: 0;
  font-family: var(--font-paperlogy);
  font-weight: 600;
  font-size: 2rem; /* 32px */
  line-height: 1.3;
  color: var(--color-white);
  text-align: center;
  pointer-events: none;
  transition: opacity 0.8s cubic-bezier(0.215, 0.61, 0.355, 1);
}

.main-pillow-solution__card:hover .main-pillow-solution__label,
.main-pillow-solution__card:focus-within .main-pillow-solution__label {
  opacity: 0;
}

.main-pillow-solution__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  box-sizing: border-box;
  width: 60rem; /* 960px — 펼친 너비에 고정해 리플로우 방지 */
  padding: 2.5rem; /* 40px */
  background: linear-gradient(to top, rgba(50, 42, 35, 0.55), transparent);
  text-align: left;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s cubic-bezier(0.215, 0.61, 0.355, 1); /* 캡션 배경 — 호버 해제 시 */
}

.main-pillow-solution__card:hover .main-pillow-solution__caption,
.main-pillow-solution__card:focus-within .main-pillow-solution__caption {
  opacity: 1;
  transition: opacity 0.6s cubic-bezier(0.215, 0.61, 0.355, 1) 0.4s; /* 캡션 배경 등장 / 0.4s 지연 */
}

.main-pillow-solution__caption-title,
.main-pillow-solution__caption-text {
  box-sizing: border-box;
  width: 55rem; /* 880px — 960px - padding 40px × 2 */
  opacity: 0;
  transform: translate3d(0, 2.5rem, 0); /* fadeUp y 40px */
  will-change: transform, opacity;
}

.main-pillow-solution__caption-title {
  margin: 0;
  font-family: var(--font-paperlogy);
  font-weight: 600;
  font-size: 2rem; /* 32px */
  line-height: 1.3;
  color: var(--color-white);
  text-align: left;
  transition:
    opacity 0.4s cubic-bezier(0.215, 0.61, 0.355, 1),
    transform 0.4s cubic-bezier(0.215, 0.61, 0.355, 1); /* caption-title — 호버 해제 */
}

.main-pillow-solution__caption-text {
  margin: 0;
  font-family: var(--font-suit);
  font-weight: 400;
  font-size: var(--fs-body-03); /* 20px */
  line-height: 130%;
  letter-spacing: 0.02em; /* 2% */
  color: var(--color-white);
  text-align: left;
  word-break: keep-all; /* 한글 — 띄어쓰기 단위 줄바꿈, 고아 글자 방지 */
  transition:
    opacity 0.4s cubic-bezier(0.215, 0.61, 0.355, 1),
    transform 0.4s cubic-bezier(0.215, 0.61, 0.355, 1); /* caption-text — 호버 해제 */
}

.main-pillow-solution__caption-text--compact {
  display: none;
}

.main-pillow-solution__card:hover .main-pillow-solution__caption-title,
.main-pillow-solution__card:focus-within .main-pillow-solution__caption-title {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition:
    opacity 1s cubic-bezier(0.215, 0.61, 0.355, 1) 0.4s, /* caption-title fadeUp 속도 / 지연 */
    transform 1s cubic-bezier(0.215, 0.61, 0.355, 1) 0.4s;
}

.main-pillow-solution__card:hover .main-pillow-solution__caption-text,
.main-pillow-solution__card:focus-within .main-pillow-solution__caption-text {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition:
    opacity 1s cubic-bezier(0.215, 0.61, 0.355, 1) 0.55s, /* caption-text fadeUp 속도 / 지연 */
    transform 1s cubic-bezier(0.215, 0.61, 0.355, 1) 0.55s;
}

.main-pillow-solution__nav {
  display: none;
}

@media (min-width: 48rem) and (max-width: 63.9375rem) {
  .main-pillow-solution {
    height: 100%;
    padding-block: 6.25rem; /* 100px 위아래 */
    padding-inline: var(--grid-margin); /* 20px — 태블릿 기본 여백 */
  }

  .main-pillow-solution__container {
    justify-content: flex-start;
    width: 100%;
    max-width: none;
    padding-inline: 0;
  }

  .main-pillow-solution__heading {
    width: 100%;
    max-width: 100%;
    margin-inline: 0;
    align-items: flex-start;
    text-align: left;
  }

  .main-pillow-solution__heading .heading-3tier__sub-title {
    font-family: var(--font-paperlogy);
    font-size: var(--fs-body-03); /* P-Body03 18px */
  }

  .main-pillow-solution__heading .heading-3tier__title {
    font-size: var(--fs-title); /* Title03 32px */
    text-align: left;
  }

  .main-pillow-solution__heading .heading-3tier__desc {
    font-weight: 400;
    font-size: var(--fs-body-02); /* Body02 20px */
    text-align: left;
  }

  .main-pillow-solution__cards {
    position: relative;
    flex: none;
    width: 100%;
    max-width: none;
    height: 37.5rem; /* 600px */
    gap: 0;
    margin-inline: 0;
    margin-top: 0;
    overflow: hidden;
  }

  .main-pillow-solution__card {
    position: absolute;
    inset: 0;
    flex: none;
    width: 100%;
    height: 100%;
    transition: none;
  }

  .main-pillow-solution__card:hover,
  .main-pillow-solution__card:focus-within {
    flex: none;
  }

  .main-pillow-solution__label {
    display: none;
  }

  .main-pillow-solution__caption {
    width: 100%;
    padding: 2.5rem 2rem; /* 20px */
  }

  .main-pillow-solution__caption-title,
  .main-pillow-solution__caption-text {
    width: 100%;
  }

  .main-pillow-solution__caption-title {
    font-size: var(--fs-subtitle-lg); /* Subtitle01 28px */
  }

  .main-pillow-solution__caption-text {
    font-size: var(--fs-body-02); /* Body02 20px */
  }

  .main-pillow-solution__nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 0.9375rem; /* 15px */
    margin-top: 0;
  }
}

@media (max-width: 47.9375rem) {
  .main-pillow-solution {
    height: 100%;
    padding-block: 6.25rem; /* 100px 위아래 */
  }

  .main-pillow-solution__container {
    justify-content: center;
  }

  .main-pillow-solution__heading {
    max-width: 100%;
    margin-inline: auto;
    align-items: flex-start;
    text-align: left;
  }

  .main-pillow-solution__heading .heading-3tier__sub-title {
    font-family: var(--font-paperlogy);
    font-size: var(--fs-body-03); /* P-Body03 16px */
  }

  .main-pillow-solution__heading .heading-3tier__title {
    font-size: var(--fs-title); /* Title03 28px */
    text-align: left;
  }

  .main-pillow-solution__heading .heading-3tier__desc {
    font-weight: 400;
    font-size: var(--fs-body-02); /* Body02 18px */
    text-align: left;
    max-width: 100%;
    word-break: keep-all;
    text-wrap: pretty;
  }

  .main-pillow-solution__cards {
    position: relative;
    flex: none;
    width: 45.5625rem; /* 729px */
    max-width: calc(100% - (var(--grid-margin) * 2));
    height: 26.25rem; /* 420px */
    gap: 0;
    margin-top: 0;
    overflow: hidden;
  }

  .main-pillow-solution__card {
    position: absolute;
    inset: 0;
    flex: none;
    width: 100%;
    height: 100%;
    transition: none;
  }

  .main-pillow-solution__card:hover,
  .main-pillow-solution__card:focus-within {
    flex: none;
  }

  .main-pillow-solution__label {
    display: none;
  }

  .main-pillow-solution__caption {
    width: 100%;
    padding: 1.25rem;
  }

  .main-pillow-solution__caption-title,
  .main-pillow-solution__caption-text {
    width: 100%;
  }

  .main-pillow-solution__caption-title {
    font-size: var(--fs-subtitle-lg); /* Subtitle01 24px */
  }

  .main-pillow-solution__caption-text {
    font-size: var(--fs-body-03); /* Body03 16px */
    word-break: keep-all;
    /* text-wrap: pretty; */
    max-width: 19.375rem; /* 310px — 한글 단어 중간 줄바꿈·고아 글자 방지 */
  }

  .main-pillow-solution__caption-text--full {
    display: none;
  }

  .main-pillow-solution__caption-text--compact {
    display: block;
  }

  .main-pillow-solution__nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 0.9375rem; /* 15px */
    margin-top: 0;
  }
}

@media (max-width: 63.9375rem) {
  .main-pillow-solution__card:hover .main-pillow-solution__caption,
  .main-pillow-solution__card:focus-within .main-pillow-solution__caption {
    opacity: 0;
    transition: opacity 0.35s cubic-bezier(0.215, 0.61, 0.355, 1);
  }

  .main-pillow-solution__card:hover .main-pillow-solution__caption-title,
  .main-pillow-solution__card:focus-within .main-pillow-solution__caption-title,
  .main-pillow-solution__card:hover .main-pillow-solution__caption-text,
  .main-pillow-solution__card:focus-within .main-pillow-solution__caption-text {
    opacity: 0;
    transform: translate3d(0, 2.5rem, 0);
    transition:
      opacity 0.4s cubic-bezier(0.215, 0.61, 0.355, 1),
      transform 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  }

  .main-pillow-solution__card.is-active .main-pillow-solution__caption,
  .main-pillow-solution__card.is-active:hover .main-pillow-solution__caption,
  .main-pillow-solution__card.is-active:focus-within .main-pillow-solution__caption {
    opacity: 1;
    transition: opacity 0.6s cubic-bezier(0.215, 0.61, 0.355, 1) 0.4s;
  }

  .main-pillow-solution__card.is-active .main-pillow-solution__caption-title,
  .main-pillow-solution__card.is-active:hover .main-pillow-solution__caption-title,
  .main-pillow-solution__card.is-active:focus-within .main-pillow-solution__caption-title {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition:
      opacity 1s cubic-bezier(0.215, 0.61, 0.355, 1) 0.4s,
      transform 1s cubic-bezier(0.215, 0.61, 0.355, 1) 0.4s;
  }

  .main-pillow-solution__card.is-active .main-pillow-solution__caption-text,
  .main-pillow-solution__card.is-active:hover .main-pillow-solution__caption-text,
  .main-pillow-solution__card.is-active:focus-within .main-pillow-solution__caption-text {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition:
      opacity 1s cubic-bezier(0.215, 0.61, 0.355, 1) 0.55s,
      transform 1s cubic-bezier(0.215, 0.61, 0.355, 1) 0.55s;
  }
}

/* ========================================
   main-bedding-overview
   ======================================== */

.main-bedding-overview {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 120rem; /* 1920px */
  height: 25rem; /* 400px */
  margin-inline: auto;
  background-color: var(--color-brand-light-2);
}

.main-bedding-overview__container {
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-bedding-overview__heading {
  align-items: center;
  text-align: center;
}

@media (max-width: 63.9375rem) {
  .main-bedding-overview__heading .heading-3tier__sub-title {
    font-family: var(--font-paperlogy);
    font-weight: 400;
    font-size: var(--fs-body-03); /* 18px, tab/p-body03 */
  }

  .main-bedding-overview__heading .heading-3tier__title {
    font-family: var(--font-suit);
    font-weight: 600;
    font-size: var(--fs-title); /* 32px, tab/p-title03 */
  }

  .main-bedding-overview__heading .heading-3tier__desc {
    font-family: var(--font-suit);
    font-weight: 400;
    font-size: var(--fs-body-02); /* 20px, tab/body02 */
  }
}

@media (max-width: 47.9375rem) {
  .main-bedding-overview__heading .heading-3tier__sub-title {
    font-family: var(--font-paperlogy);
    font-weight: 400;
    font-size: var(--fs-body-03); /* 16px, mo/p-body03 */
  }

  .main-bedding-overview__heading .heading-3tier__title {
    font-family: var(--font-suit);
    font-weight: 600;
    font-size: var(--fs-title); /* 28px, mo/title03 */
  }

  .main-bedding-overview__heading .heading-3tier__desc {
    font-family: var(--font-suit);
    font-weight: 400;
    font-size: var(--fs-body-02); /* 18px, mo/body02 */
    word-break: keep-all;
    text-wrap: pretty;
    
  }
}

/* ========================================
   main-bedding-solution
   ======================================== */

.main-bedding-solution {
  width: 100%;
  max-width: 120rem; /* 1920px */
  margin-inline: auto;
  overflow-x: clip;
}

.main-bedding-solution__viewport {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.main-bedding-solution__panel {
  display: flex;
  align-items: stretch;
  gap: 2.6875rem; /* 43px */
  width: 100%;
  height: 100vh;
}

.main-bedding-solution__panel--media-start {
  flex-direction: row-reverse;
}

.main-bedding-solution__content {
  display: flex;
  flex: 4 1 0;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  min-width: 0;
  text-align: right;
}

.main-bedding-solution__copy {
  display: flex;
  flex-direction: column;
  align-items: inherit;
  gap: 1.25rem; /* 20px */
}

.main-bedding-solution__panel--media-start .main-bedding-solution__content {
  align-items: flex-start;
  text-align: left;
}

.main-bedding-solution__title {
  margin: 0;
  font-family: var(--font-paperlogy);
  font-weight: 600;
  font-size: var(--fs-title); /* 40px */
  line-height: 1.3;
  color: var(--color-brand-dark);
  text-align: right;
}

.main-bedding-solution__text {
  margin: 0;
  font-family: var(--font-suit);
  font-weight: 400;
  font-size: var(--fs-body-02); /* 22px */
  line-height: 1.3;
  color: var(--color-brand-dark);
  text-align: right;
}

.main-bedding-solution__panel--media-start .main-bedding-solution__title,
.main-bedding-solution__panel--media-start .main-bedding-solution__text {
  text-align: left;
}

.main-bedding-solution__media {
  flex: 6 1 0;
  min-width: 0;
  height: 100%;
  overflow: hidden;
}

.main-bedding-solution__image {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}

.main-bedding-solution__nav {
  display: none;
}

.main-bedding-solution__char {
  display: inline-block;
  will-change: transform, opacity;
}

@media (max-width: 63.9375rem) {
  .main-bedding-solution {
    height: auto;
  }

  .main-bedding-solution__viewport {
    display: flex;
    flex-direction: column;
    width: 100%;
    overflow: visible;
  }

  .main-bedding-solution__panel,
  .main-bedding-solution__panel--media-start {
    box-sizing: border-box;
    flex-direction: column;
    align-items: stretch;
    gap: 1.25rem; /* 20px — content ↔ image */
    width: 100%;
    height: auto;
    padding: 6.25rem 0; /* 100px 위아래 */
  }

  .main-bedding-solution__content,
  .main-bedding-solution__panel--media-start .main-bedding-solution__content {
    flex: none;
    justify-content: center;
    width: 100%;
    padding-inline: var(--grid-margin);
  }

  .main-bedding-solution__content {
    align-items: flex-end;
    text-align: right;
  }

  .main-bedding-solution__panel--media-start .main-bedding-solution__content {
    align-items: flex-start;
    text-align: left;
  }

  .main-bedding-solution__copy {
    align-items: inherit;
    width: fit-content;
    max-width: 100%;
    margin-inline: 0;
  }

  .main-bedding-solution__title {
    font-weight: 700;
    font-size: 1.5rem; /* 24px, mo/subtitle01 */
    text-align: right;
  }

  .main-bedding-solution__text {
    font-size: 1.125rem; /* 18px, mo/body02 */
    text-align: right;
  }

  .main-bedding-solution__panel--media-start .main-bedding-solution__title,
  .main-bedding-solution__panel--media-start .main-bedding-solution__text {
    text-align: left;
  }

  .main-bedding-solution__media {
    flex: none;
    width: 100%;
    height: 29.5625rem; /* 473px */
  }

  .main-bedding-solution__image {
    height: 29.5625rem; /* 473px */
  }
}

/* ========================================
   main-sleep-balance
   ======================================== */

.main-sleep-balance {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 120rem; /* 1920px */
  height: 25rem; /* 400px */
  margin-inline: auto;
  background-color: var(--color-brand-light-2);
}

.main-sleep-balance__container {
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-sleep-balance__title {
  margin: 0;
  font-family: var(--font-paperlogy);
  font-weight: 700;
  font-size: 1.875rem; /* 30px */
  letter-spacing: 0.1em; /* 10% */
  line-height: 1.3;
  color: var(--color-brand-dark);
  text-align: center;
}

@media (min-width: 48rem) and (max-width: 63.9375rem) {
  .main-sleep-balance__title {
    font-size: 2rem; /* 32px, Paperlogy Bold */
  }
}

@media (max-width: 47.9375rem) {
  .main-sleep-balance__title {
    font-size: var(--fs-subtitle-lg); /* 24px, mo/subtitle01 */
  }
}

/* ========================================
   main-sleep-fit
   ======================================== */

.main-sleep-fit {
  position: relative;
  width: 100%;
  height: 100vh;
  max-width: 120rem; /* 1920px */
  margin-inline: auto;
  /* 이미지 pin 중 뒷 섹션이 비치지 않도록 섹션 배경 확보 */
  background-color: var(--color-brand-light-2);
}

.main-sleep-fit__viewport {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  /* 이미지 축소 중 viewport 밖 영역(뒷 섹션)이 비치지 않도록 배경 고정 */
  background-color: var(--color-brand-light-2);
  isolation: isolate;
}

.main-sleep-fit__container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2.5rem; /* 40px */
  height: 100vh;
}

.main-sleep-fit__header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2.5rem;
  opacity: 0;
  pointer-events: none;
}

.main-sleep-fit.is-expanded .main-sleep-fit__header {
  pointer-events: auto;
}

.main-sleep-fit__copy {
  min-width: 0;
  text-align: left;
}

.main-sleep-fit__title {
  margin: 0;
  font-family: var(--font-suit);
  font-weight: var(--fw-suit-bold); /* 600 — Semibold */
  font-size: var(--fs-title); /* 40px */
  line-height: 1.3;
  color: var(--color-brand-dark);
  text-align: left;
}

.main-sleep-fit__brand {
  font-family: var(--font-paperlogy);
  font-weight: 900;
  font-size: 2.5rem; /* 40px — 로고와 동일 */
  letter-spacing: 0.1em;
}

.main-sleep-fit__text {
  margin: 0.75rem 0 0; /* 12px */
  font-family: var(--font-suit);
  font-weight: 300;
  font-size: var(--fs-body-02); /* 22px */
  line-height: 1.3;
  color: var(--color-brand-dark);
  text-align: left;
}

.main-sleep-fit__button {
  flex-shrink: 0;
}

.main-sleep-fit__frame {
  flex-shrink: 0;
  width: 100%;
  height: 32.5rem; /* 520px */
  border-radius: 1.875rem; /* 30px */
}

.main-sleep-fit__media {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 0;
}

/* 이미지가 줄어들 때 미디어 뒤 viewport가 드러나도 뒷 섹션이 보이지 않게 막음 */
.main-sleep-fit__viewport::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: var(--color-brand-light-2);
  pointer-events: none;
}

.main-sleep-fit__image {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}

.main-sleep-fit__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-color: #333;
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 63.9375rem) {
  .main-sleep-fit {
    /* 사이트 헤더 아래 body padding을 상쇄해 뷰포트 전체(헤더 뒤 포함)를 채움 */
    --sleep-fit-view-height: 100vh;
    --sleep-fit-view-height: 100dvh;
    --sleep-fit-header-offset: 5rem; /* site-header bar 80px */
    margin-top: calc(var(--sleep-fit-header-offset) * -1);
  }

  .main-sleep-fit,
  .main-sleep-fit__viewport {
    height: var(--sleep-fit-view-height);
  }

  .main-sleep-fit.is-expanded {
    height: auto;
    min-height: var(--sleep-fit-view-height);
    background-color: var(--color-brand-light-2);
  }

  .main-sleep-fit.is-animating,
  .main-sleep-fit.is-animating .main-sleep-fit__viewport,
  .main-sleep-fit.is-animating .main-sleep-fit__container,
  .main-sleep-fit.is-expanded.is-animating,
  .main-sleep-fit.is-expanded.is-animating .main-sleep-fit__viewport,
  .main-sleep-fit.is-expanded.is-animating .main-sleep-fit__container {
    height: var(--sleep-fit-view-height);
  }

  .main-sleep-fit.is-measuring .main-sleep-fit__header {
    visibility: hidden;
    pointer-events: none;
  }

  .main-sleep-fit.is-expanded .main-sleep-fit__viewport {
    height: auto;
  }

  .main-sleep-fit.is-expanded.is-animating .main-sleep-fit__viewport {
    height: var(--sleep-fit-view-height);
  }

  .main-sleep-fit__container {
    justify-content: flex-end;
    gap: 0;
    height: var(--sleep-fit-view-height);
  }

  .main-sleep-fit.is-expanded .main-sleep-fit__container {
    justify-content: flex-start;
    gap: 2.5rem;
    height: auto;
    min-height: var(--sleep-fit-view-height);
    padding-top: calc(var(--sleep-fit-header-offset) + 2.5rem);
    padding-bottom: 2.5rem;
    box-sizing: border-box;
  }

  .main-sleep-fit:not(.is-expanded) .main-sleep-fit__header {
    position: absolute;
    overflow: hidden;
    width: 1px;
    height: 1px;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .main-sleep-fit__header {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    width: 100%;
  }

  .main-sleep-fit__copy {
    text-align: left;
  }

  .main-sleep-fit__title {
    font-family: var(--font-suit);
    font-weight: var(--fw-suit-bold); /* 600, mo/subtitle02 */
    font-size: 1.5rem; /* 24px */
    line-height: 1.3;
    color: var(--color-brand-dark);
    text-align: left;
  }

  .main-sleep-fit__brand {
    font-family: inherit;
    font-weight: inherit;
    font-size: inherit;
    letter-spacing: inherit;
  }

  .main-sleep-fit__text {
    display: block;
    margin: 0.625rem 0 0; /* 10px */
    font-weight: 400;
    font-size: 1rem; /* 16px, mo/body03 */
    color: var(--color-brand-dark);
    text-align: left;
  }

  .main-sleep-fit__text-detail {
    display: none;
  }

  .main-sleep-fit__button {
    margin-top: 1.25rem; /* 20px */
  }

  .main-sleep-fit__frame {
    display: block;
    width: 100%;
    height: 26.5625rem; /* 425px */
  }

  .main-sleep-fit__overlay {
    display: none;
  }
}

/* 풀스크린 이미지 구간 — 사이트 헤더 뒤 이미지가 비치지 않도록 헤더 투명 */
@media (max-width: 63.9375rem) {
  body.is-main-sleep-fit-full .site-header,
  body.is-main-sleep-fit-full .site-header__bar {
    background-color: transparent;
    box-shadow: none;
  }
}

@media (max-width: 47.9375rem) {
  .main-sleep-fit {
    --sleep-fit-header-offset: 3.75rem; /* site-header bar 60px */
  }
}