:root {
  --bg: #f5f4ef;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.84);
  --line: rgba(24, 33, 31, 0.08);
  --line-strong: rgba(24, 33, 31, 0.14);
  --text: #212b27;
  --text-muted: rgba(33, 43, 39, 0.62);
  --accent: #9ee0bc;
  --shadow-soft: 0 24px 80px rgba(17, 25, 22, 0.08);
  --shadow-card: 0 20px 55px rgba(21, 29, 27, 0.1);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max-width: 1220px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

#top {
  scroll-margin-top: 92px;
}

.section[id] {
  scroll-margin-top: 58px;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "SF Pro Display", "SF Pro Text", "PingFang SC", "Hiragino Sans GB",
    "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(161, 226, 191, 0.24), transparent 30%),
    radial-gradient(circle at 85% 8%, rgba(255, 216, 169, 0.16), transparent 20%),
    linear-gradient(180deg, #f6f5ef 0%, #f2f1eb 100%);
}

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

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

.page-shell {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  --header-hide-offset: 0px;
  --header-hide-opacity: 1;
  position: sticky;
  top: 18px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 18px;
  padding: 14px 22px 14px 28px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  background: rgba(247, 246, 240, 0.7);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-soft);
  transform: translateY(calc(-1 * var(--header-hide-offset)));
  opacity: var(--header-hide-opacity);
  transition: box-shadow 220ms ease;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  margin-left: 6px;
}

.brand img {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  object-fit: cover;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-copy strong {
  font-size: 16px;
  font-weight: 620;
  letter-spacing: 0.014em;
}

.brand-copy span {
  font-size: 12px;
  color: var(--text-muted);
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
  color: var(--text-muted);
  margin-right: 10px;
  letter-spacing: 0.02em;
}

.site-nav a:hover {
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 520px);
  gap: 42px;
  align-items: center;
  padding: 26px 0 58px;
}

.hero-mark,
.section-mark {
  margin: 0 0 18px;
  font-size: 13px;
  color: rgba(33, 43, 39, 0.54);
  letter-spacing: 0.05em;
}

.hero h1,
.section-heading h2,
.contact-brand h2 {
  margin: 0;
  font-family: "SF Pro Display", "PingFang SC", "Source Han Sans SC", sans-serif;
  font-size: clamp(38px, 4.2vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.028em;
  font-weight: 630;
}

.hero-lead,
.section-heading p,
.spotlight-copy p,
.product-card p,
.lab-card p,
.contact-brand p,
.contact-copy p {
  font-size: 16px;
  line-height: 1.86;
  color: var(--text-muted);
}

.hero-lead {
  max-width: 620px;
  margin: 24px 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, #18211f 0%, #2e3d36 100%);
  color: #f9faf5;
  box-shadow: 0 18px 40px rgba(24, 33, 31, 0.22);
}

.button-secondary {
  border: 1px solid rgba(24, 33, 31, 0.12);
  background: rgba(255, 255, 255, 0.65);
  color: var(--text);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 42px 0 0;
  list-style: none;
}

.hero-facts li {
  padding: 18px;
  border: 1px solid rgba(24, 33, 31, 0.08);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.58);
  box-shadow: var(--shadow-card);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.hero-facts li:hover {
  transform: translateY(-4px);
  border-color: rgba(90, 180, 131, 0.2);
  box-shadow: 0 22px 54px rgba(21, 29, 27, 0.1);
}

.hero-facts strong {
  display: block;
  font-size: 20px;
  margin-bottom: 8px;
  font-weight: 610;
  letter-spacing: 0.012em;
}

.hero-facts span {
  display: block;
  font-size: 13px;
  line-height: 1.72;
  color: var(--text-muted);
  letter-spacing: 0.018em;
}

.hero-panel {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-card);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.hero-panel:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 60px rgba(21, 29, 27, 0.14);
}

.hero-panel-art {
  position: relative;
  overflow: hidden;
  height: 420px;
  border-radius: 22px;
  margin: 16px;
  background:
    radial-gradient(circle at 24% 32%, rgba(158, 224, 188, 0.9), transparent 16%),
    radial-gradient(circle at 78% 28%, rgba(255, 222, 175, 0.72), transparent 20%),
    radial-gradient(circle at 68% 78%, rgba(92, 181, 137, 0.46), transparent 22%),
    linear-gradient(140deg, #17211e 0%, #24332d 42%, #eff2e9 100%);
}

.art-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(10px);
  opacity: 0.82;
}

.art-orb-a {
  width: 200px;
  height: 200px;
  top: 44px;
  left: 42px;
  background: rgba(164, 231, 195, 0.82);
  animation: orb-float-a 11s ease-in-out infinite;
}

.art-orb-b {
  width: 240px;
  height: 240px;
  right: 40px;
  top: 68px;
  background: rgba(246, 227, 182, 0.6);
  animation: orb-float-b 13s ease-in-out infinite;
}

.art-orb-c {
  width: 170px;
  height: 170px;
  right: 100px;
  bottom: 38px;
  background: rgba(94, 189, 143, 0.34);
  animation: orb-float-c 12s ease-in-out infinite;
}

@keyframes orb-float-a {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.8;
  }
  50% {
    transform: translate3d(18px, -14px, 0) scale(1.08);
    opacity: 0.96;
  }
}

@keyframes orb-float-b {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.62;
  }
  50% {
    transform: translate3d(-16px, 18px, 0) scale(0.94);
    opacity: 0.8;
  }
}

@keyframes orb-float-c {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.34;
  }
  50% {
    transform: translate3d(14px, -16px, 0) scale(1.1);
    opacity: 0.5;
  }
}

.hero-countdown-card {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  width: min(calc(100% - 56px), 320px);
  padding: 24px 24px 22px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.08)),
    rgba(14, 21, 19, 0.24);
  box-shadow: 0 18px 46px rgba(10, 15, 13, 0.22);
  backdrop-filter: blur(22px);
  transform: translate(-50%, -50%);
}

.countdown-label {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: rgba(246, 248, 243, 0.74);
  text-align: center;
}

.countdown-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  margin-top: 18px;
  min-height: 76px;
}

.countdown-row[hidden] {
  display: none;
}

.countdown-number {
  min-width: 0;
  padding: 0;
  font-size: clamp(58px, 7vw, 76px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: #f6f8f3;
}

.countdown-unit {
  font-size: 24px;
  font-weight: 600;
  color: rgba(246, 248, 243, 0.88);
}

.countdown-slogan {
  margin-top: 20px;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: #f6f8f3;
  text-align: center;
  white-space: nowrap;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.countdown-slogan[hidden] {
  display: none;
}

.countdown-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 18px;
  color: rgba(246, 248, 243, 0.72);
  font-variant-numeric: tabular-nums;
}

.countdown-meta span:first-child {
  font-size: 15px;
  min-width: 132px;
  text-align: right;
}

.countdown-meta span:last-child {
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
  color: rgba(246, 248, 243, 0.92);
  min-width: 92px;
  text-align: left;
}

.section {
  padding: 68px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading h2 {
  font-size: clamp(26px, 3vw, 38px);
  letter-spacing: -0.02em;
}

.section-heading p {
  max-width: 560px;
  letter-spacing: 0.012em;
}

.product-spotlight,
.product-card,
.scene-card,
.lab-card,
.contact-panel {
  border: 1px solid var(--line);
  background: var(--surface);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
}

.product-spotlight {
  display: grid;
  grid-template-columns: minmax(0, 1.22fr) minmax(260px, 0.78fr);
  gap: 24px;
  padding: 24px;
  border-radius: 34px;
  margin-bottom: 20px;
}

.spotlight-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 10px 6px 10px 8px;
}

.spotlight-copy h3,
.product-card h3,
.lab-card h3 {
  margin: 0 0 12px;
  font-size: 19px;
  line-height: 1.42;
  letter-spacing: 0.012em;
  font-weight: 600;
}

.spotlight-copy ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 12px 0 0;
  list-style: none;
}

.spotlight-copy li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(158, 224, 188, 0.16);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.spotlight-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 340px;
  border-radius: 24px;
  background:
    radial-gradient(circle at 25% 30%, rgba(158, 224, 188, 0.32), transparent 22%),
    radial-gradient(circle at 70% 70%, rgba(255, 220, 172, 0.25), transparent 18%),
    linear-gradient(140deg, #1e2925 0%, #30413a 38%, #e6ece1 100%);
}

.spotlight-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 20px 16px;
  border-radius: 24px;
  background: transparent;
  color: var(--text);
  min-height: 280px;
}

.spotlight-visual img {
  width: 136px;
  height: 136px;
  object-fit: contain;
  border-radius: 28px;
}

.spotlight-visual-copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}

.spotlight-visual-copy strong {
  font-size: 24px;
  letter-spacing: -0.04em;
  color: var(--text);
}

.product-grid,
.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.product-card,
.lab-card {
  position: relative;
  overflow: hidden;
  padding: 26px;
  border-radius: 28px;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
  min-height: 224px;
}

.product-card {
  width: 100%;
  border: 1px solid var(--line);
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.lab-card {
  min-height: 188px;
}

.product-card:hover,
.lab-card:hover,
.scene-card:hover {
  transform: translateY(-4px);
  border-color: rgba(90, 180, 131, 0.2);
  box-shadow: 0 22px 54px rgba(21, 29, 27, 0.1);
}

.product-card.is-active {
  transform: translateY(-4px);
  border-color: rgba(90, 180, 131, 0.28);
  box-shadow: 0 22px 56px rgba(21, 29, 27, 0.12);
}

.product-meta {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 14px;
  font-size: 12px;
  color: rgba(33, 43, 39, 0.5);
  letter-spacing: 0.06em;
}

.qr-hover {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: rgba(23, 33, 30, 0.8);
  color: rgba(247, 250, 244, 0.86);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 180ms ease, transform 180ms ease;
  padding: 22px 24px;
  pointer-events: none;
}

.product-card:hover .qr-hover {
  opacity: 1;
  transform: translateY(0);
}

.qr-hover img,
.contact-qr img {
  width: 132px;
  height: 132px;
  border-radius: 18px;
  object-fit: cover;
  background: #fff;
}

.qr-hover span,
.contact-qr span {
  font-size: 13px;
  color: rgba(247, 250, 244, 0.72);
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}

.scene-card {
  min-height: 132px;
  padding: 22px;
  border-radius: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(247, 249, 243, 0.52)),
    radial-gradient(circle at top right, rgba(158, 224, 188, 0.16), transparent 34%);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.scene-card strong {
  font-size: 19px;
  font-weight: 560;
  letter-spacing: 0.04em;
  line-height: 1.46;
  text-align: center;
  color: rgba(33, 43, 39, 0.92);
}

.lab-card p {
  margin: 0;
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.15fr) minmax(180px, 0.55fr);
  gap: 28px;
  align-items: center;
  padding: 30px;
  border-radius: 34px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(247, 249, 243, 0.58)),
    radial-gradient(circle at top right, rgba(158, 224, 188, 0.2), transparent 30%);
}

.contact-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.contact-brand img {
  width: 96px;
  height: 96px;
  border-radius: 18px;
  object-fit: cover;
}

.contact-brand h2 {
  margin: 0;
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.2;
  letter-spacing: 0.014em;
  white-space: nowrap;
  font-weight: 610;
}

.contact-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 15px;
  padding-left: 10px;
}

.contact-copy p {
  margin: 0;
  line-height: 1.98;
}

.contact-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(24, 33, 31, 0.08);
  border-radius: 24px;
  background: rgba(23, 33, 30, 0.88);
  color: #f7faf4;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.contact-qr:hover {
  transform: translateY(-4px);
  border-color: rgba(158, 224, 188, 0.32);
  box-shadow: 0 22px 54px rgba(21, 29, 27, 0.18);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px 0 56px;
  font-size: 13px;
  color: rgba(23, 33, 30, 0.56);
}

.footer-brand,
.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.footer-brand-mark img {
  width: 46px;
  height: 46px;
  border-radius: 8px;
  object-fit: cover;
}

.footer-brand-copy {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.footer-brand-copy p {
  margin: 0;
}

.footer-brand-copy p:first-child {
  font-size: 16px;
  font-weight: 620;
  letter-spacing: 0.014em;
  color: var(--text);
}

.footer-brand-copy p:last-child {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-brand p,
.footer-meta p {
  margin: 0;
}

.footer-records {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-records a:hover {
  color: rgba(23, 33, 30, 0.82);
}

@media (max-width: 1100px) {
  .hero,
  .product-spotlight {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .page-shell {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .site-header {
    flex-direction: column;
    align-items: stretch;
    border-radius: 28px;
  }

  .site-nav {
    justify-content: space-between;
    gap: 12px;
    overflow-x: auto;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 24px;
  }

  .hero-facts,
  .product-grid,
  .lab-grid {
    grid-template-columns: 1fr;
  }

  .scene-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-panel-art {
    height: 320px;
  }

  .hero-countdown-card {
    width: min(calc(100% - 40px), 320px);
  }

  .contact-panel,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-panel {
    grid-template-columns: 1fr;
  }

  .contact-qr {
    width: 100%;
    align-items: center;
    text-align: center;
  }
}

@media (hover: none), (pointer: coarse) {
  .product-card.is-active .qr-hover {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 560px) {
  .scene-grid {
    grid-template-columns: 1fr;
  }

  .hero h1,
  .section-heading h2,
  .contact-brand h2 {
    font-size: 34px;
  }

  .countdown-row {
    gap: 2px;
    transform: translateY(15px);
  }

  .countdown-number {
    font-size: 50px;
  }

  .countdown-unit {
    font-size: 20px;
  }
}