:root {
  color-scheme: light;
  --text: #111;
  --muted: #6e6e73;
  --line: rgba(0, 0, 0, 0.12);
  --surface: #f5f5f7;
  --white: #fff;
  --accent: #72b653;
  --accent-soft: #e7f5dc;
  --shadow: 0 32px 80px rgba(0, 0, 0, 0.16);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
  overflow-x: hidden;
}

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

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

.scroll-meter {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 20;
  width: 100%;
  height: 3px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, #53b5ff, #7bc957, #ff6d97, #ff9a22);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 15;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  padding: 0 max(22px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(22px) saturate(160%);
}

.brand {
  font-size: 18px;
  font-weight: 650;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 30px);
  color: rgba(29, 29, 31, 0.78);
  font-size: 13px;
}

.nav-links a {
  transition: color 180ms ease;
}

.nav-links a:hover {
  color: #000;
}

.hero {
  position: relative;
  min-height: calc(100svh - 48px);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: clamp(72px, 8vw, 118px) max(22px, calc((100vw - var(--max)) / 2)) 7vh;
  background:
    radial-gradient(ellipse at 78% 74%, rgba(0, 0, 0, 0.13), transparent 30%),
    radial-gradient(ellipse at 28% 12%, rgba(114, 182, 83, 0.16), transparent 34%),
    linear-gradient(180deg, #fbfbfd 0%, #fff 54%, #f1f1f3 100%);
}

.hero-copy {
  position: relative;
  z-index: 5;
  max-width: 620px;
  margin-top: -8vh;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 18px;
  font-weight: 650;
}

.hero h1 {
  margin: 0;
  max-width: 620px;
  font-size: clamp(56px, 8.7vw, 116px);
  line-height: 0.92;
  font-weight: 760;
  letter-spacing: 0;
}

.title-mobile {
  display: none;
}

.hero-lede {
  max-width: 580px;
  margin: 28px 0 0;
  color: #424245;
  font-size: clamp(20px, 2.3vw, 31px);
  line-height: 1.22;
  font-weight: 520;
}

.hero-stage {
  position: absolute;
  inset: 4vh -8vw auto auto;
  width: min(60vw, 830px);
  height: min(83vh, 760px);
  transform: translate3d(0, var(--hero-y, 0px), 0) scale(var(--hero-scale, 1));
  transition: transform 120ms linear;
}

.hero-image {
  width: min(52vw, 680px);
  filter: drop-shadow(0 36px 48px rgba(0, 0, 0, 0.18));
  animation: heroFloat 7s ease-in-out infinite;
}

.hero-main {
  position: absolute;
  right: 10%;
  top: 5%;
  z-index: 3;
}

.hero-float {
  position: absolute;
  width: min(26vw, 350px);
  filter: drop-shadow(0 28px 42px rgba(0, 0, 0, 0.16));
  animation: heroFloat 7.5s ease-in-out infinite;
}

.hero-spring {
  right: 48%;
  top: 38%;
  z-index: 2;
  animation-delay: -1.8s;
}

.hero-winter {
  right: 55%;
  top: 4%;
  z-index: 1;
  animation-delay: -3.1s;
}

.hero-autumn {
  right: 0;
  top: 44%;
  z-index: 1;
  animation-delay: -4.2s;
}

.hero-ghost {
  position: absolute;
  inset: 15% auto auto -9%;
  margin: 0;
  color: rgba(0, 0, 0, 0.055);
  font-size: clamp(86px, 13vw, 190px);
  font-weight: 760;
  line-height: 0.9;
  white-space: nowrap;
}

.glass-caption {
  position: absolute;
  right: 7%;
  bottom: 11%;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(2, max-content);
  gap: 8px 16px;
  color: rgba(0, 0, 0, 0.48);
  font-size: 13px;
  font-weight: 650;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  color: rgba(0, 0, 0, 0.48);
  font-size: 13px;
}

.intro {
  max-width: 1060px;
  margin: 0 auto;
  padding: clamp(84px, 14vw, 180px) 22px;
  text-align: center;
}

.intro-kicker {
  color: var(--muted);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 650;
}

.intro h2,
.section-heading h2,
.spotlight-copy h2,
.material h2,
.cinema h2,
.finale h2 {
  margin: 0;
  font-size: clamp(40px, 6.6vw, 92px);
  line-height: 1.02;
  font-weight: 760;
  letter-spacing: 0;
}

.intro h2 {
  margin-top: 20px;
}

.spotlight {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: center;
  padding: clamp(72px, 9vw, 130px) max(22px, calc((100vw - var(--max)) / 2));
  background:
    linear-gradient(90deg, var(--accent-soft), transparent 48%),
    #fbfbfd;
}

.spotlight-media {
  position: relative;
  perspective: 1200px;
}

.spotlight-media img {
  position: relative;
  z-index: 1;
  width: min(660px, 100%);
  margin: 0 auto;
  filter: drop-shadow(0 34px 45px rgba(0, 0, 0, 0.2));
  transform: rotateX(2deg) rotateY(-7deg);
  transition:
    transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1),
    filter 400ms ease;
}

.spotlight-media img:hover {
  transform: rotateX(0deg) rotateY(0deg) translateY(-10px);
  filter: drop-shadow(0 42px 52px rgba(0, 0, 0, 0.24)) saturate(1.05) contrast(1.02);
}

.halo {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(46vw, 520px);
  aspect-ratio: 1;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.08) 58%, transparent 70%),
    radial-gradient(circle, var(--accent-soft), transparent 64%);
  filter: blur(2px);
}

.spotlight-copy p:not(.eyebrow),
.material-copy p {
  color: #424245;
  font-size: clamp(19px, 2vw, 27px);
  line-height: 1.32;
}

.season-controls {
  display: flex;
  gap: 13px;
  margin-top: 34px;
}

.season-dot {
  width: 38px;
  height: 38px;
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  cursor: pointer;
  background: var(--dot);
  box-shadow: inset 0 2px 10px rgba(255, 255, 255, 0.55);
  transition:
    transform 180ms ease,
    border-color 180ms ease;
}

.season-dot:hover,
.season-dot.is-active {
  transform: scale(1.12);
  border-color: rgba(0, 0, 0, 0.42);
}

.season-dot[data-season="summer"] {
  --dot: #8bd35d;
}

.season-dot[data-season="spring"] {
  --dot: #ff6f99;
}

.season-dot[data-season="autumn"] {
  --dot: #ff911c;
}

.season-dot[data-season="winter"] {
  --dot: #65c7ff;
}

.lineup,
.wear,
.explode {
  padding: clamp(84px, 11vw, 152px) max(22px, calc((100vw - var(--max)) / 2));
  background: var(--white);
}

.section-heading {
  max-width: 850px;
  margin-bottom: clamp(34px, 6vw, 70px);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  position: relative;
  min-height: 430px;
  display: flex;
  flex-direction: column;
  justify-content: end;
  overflow: hidden;
  padding: 18px;
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 34%, rgba(255, 255, 255, 0.96), transparent 42%),
    #f5f5f7;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.04);
}

.product-card img {
  position: absolute;
  inset: -72px auto auto 50%;
  width: 118%;
  max-width: none;
  transform: translateX(-50%);
  filter: drop-shadow(0 24px 28px rgba(0, 0, 0, 0.15));
  transition: transform 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.product-card:hover img {
  transform: translateX(-50%) translateY(-14px) scale(1.045);
}

.product-card div {
  position: relative;
  z-index: 1;
  padding-top: 265px;
}

.product-card h3 {
  margin: 0 0 8px;
  font-size: 24px;
}

.product-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.35;
}

.material {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(34px, 7vw, 86px);
  align-items: center;
  padding: clamp(88px, 12vw, 160px) max(22px, calc((100vw - var(--max)) / 2));
  color: #f5f5f7;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 34%),
    #08080a;
}

.explode {
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 46%, rgba(255, 255, 255, 0.94), transparent 40%),
    linear-gradient(180deg, #f5f5f7, #fff);
}

.explode .section-heading {
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.explode-stage {
  position: relative;
  min-height: clamp(520px, 68vw, 780px);
  margin-top: -18px;
}

.explode-item {
  position: absolute;
  width: min(42vw, 540px);
  filter: drop-shadow(0 34px 42px rgba(0, 0, 0, 0.16));
  animation: heroFloat 8s ease-in-out infinite;
}

.ex-blue {
  left: -4%;
  top: 1%;
  transform: rotate(-9deg);
}

.ex-green {
  left: 26%;
  top: 3%;
  z-index: 2;
  width: min(46vw, 590px);
  animation-delay: -2s;
}

.ex-pink {
  right: 19%;
  top: 10%;
  z-index: 1;
  animation-delay: -3.4s;
}

.ex-orange {
  right: -4%;
  top: 2%;
  animation-delay: -5.2s;
}

.material .eyebrow,
.material-copy p {
  color: rgba(245, 245, 247, 0.68);
}

.specs {
  display: grid;
  gap: 1px;
  margin: 34px 0 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}

.specs div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.04);
}

.specs dt {
  color: rgba(255, 255, 255, 0.5);
  font-weight: 650;
}

.specs dd {
  margin: 0;
  color: #fff;
}

.material-image img {
  border-radius: 8px;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
}

.cinema {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: max(64px, 8vw) max(22px, calc((100vw - var(--max)) / 2));
  background: #f5f5f7;
}

.cinema img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(var(--cinema-scale, 1.04));
  filter: saturate(1.05);
}

.cinema::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(255, 255, 255, 0.92), transparent 42%);
}

.cinema-copy {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.wear-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 18px;
}

.wear-item {
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  background: #f5f5f7;
}

.wear-item.large {
  grid-row: span 2;
}

.wear-item img {
  width: 100%;
  height: 100%;
  min-height: 330px;
  object-fit: cover;
  transition: transform 900ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.wear-item:hover img {
  transform: scale(1.035);
}

.wear-item figcaption {
  padding: 14px 16px 16px;
  color: var(--muted);
  font-size: 15px;
}

.finale {
  display: grid;
  justify-items: center;
  gap: 24px;
  padding: clamp(82px, 12vw, 170px) 22px 8vw;
  text-align: center;
  background:
    linear-gradient(180deg, #fff 0%, #f5f5f7 100%);
}

.finale h2 {
  max-width: 900px;
}

.finale img {
  width: min(980px, 100%);
  filter: drop-shadow(0 28px 50px rgba(0, 0, 0, 0.16));
}

[data-reveal] {
  opacity: 0;
  transform: translateY(36px);
  transition:
    opacity 800ms ease,
    transform 900ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes heroFloat {
  0%,
  100% {
    transform: translateY(0) rotate(-0.4deg);
  }
  50% {
    transform: translateY(-14px) rotate(0.45deg);
  }
}

@media (max-width: 980px) {
  .hero {
    align-items: start;
    padding-top: 82px;
  }

  .hero-copy {
    margin-top: 0;
    max-width: 680px;
  }

  .hero-stage {
    position: relative;
    inset: auto;
    width: 116%;
    height: min(76vh, 640px);
    margin: 34px -8% -4vh;
  }

  .hero-image {
    width: 70vw;
  }

  .hero-float {
    width: 38vw;
  }

  .spotlight,
  .material {
    grid-template-columns: 1fr;
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .site-header {
    height: 54px;
    padding: 0 20px;
  }

  .brand {
    font-size: 18px;
  }

  .nav-links {
    gap: 16px;
    font-size: 13px;
  }

  .hero {
    min-height: auto;
    padding: 74px 22px 68px;
  }

  .hero-copy {
    max-width: 100%;
  }

  .hero .eyebrow {
    margin-bottom: 18px;
    font-size: 18px;
    line-height: 1.3;
  }

  .hero h1 {
    max-width: 350px;
    font-size: clamp(50px, 13.8vw, 56px);
    line-height: 1.04;
    font-weight: 780;
  }

  .title-desktop {
    display: none;
  }

  .title-mobile {
    display: inline;
  }

  .hero-lede {
    max-width: 345px;
    margin-top: 24px;
    font-size: 18px;
    line-height: 1.42;
    font-weight: 520;
  }

  .spotlight-copy p:not(.eyebrow),
  .material-copy p {
    font-size: 18px;
    line-height: 1.42;
  }

  .intro h2,
  .section-heading h2,
  .spotlight-copy h2,
  .material h2,
  .cinema h2,
  .finale h2 {
    font-size: clamp(34px, 9.8vw, 46px);
    line-height: 1.08;
  }

  .glass-caption {
    display: none;
  }

  .hero-stage {
    width: 122%;
    height: 520px;
    margin: 54px -11% -8px -11%;
  }

  .hero-main {
    right: 10%;
    top: 12%;
  }

  .hero-image {
    width: 78vw;
  }

  .hero-float {
    width: 39vw;
  }

  .hero-spring {
    right: 52%;
    top: 48%;
  }

  .hero-winter {
    right: 54%;
    top: 12%;
  }

  .hero-autumn {
    right: 2%;
    top: 56%;
  }

  .hero-ghost {
    inset: 42% auto auto -16%;
    font-size: 86px;
  }

  .product-grid,
  .wear-grid {
    grid-template-columns: 1fr;
  }

  .product-card {
    min-height: 380px;
  }

  .product-card img {
    width: 92%;
    top: -82px;
  }

  .product-card div {
    padding-top: 270px;
  }

  .explode-stage {
    min-height: 880px;
  }

  .explode-item {
    width: 72vw;
  }

  .ex-blue {
    left: -12%;
    top: 0;
  }

  .ex-green {
    left: 28%;
    top: 18%;
    width: 76vw;
  }

  .ex-pink {
    right: 24%;
    top: 45%;
  }

  .ex-orange {
    right: -18%;
    top: 58%;
  }

  .wear-item.large {
    grid-row: auto;
  }

  .specs div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}