:root {
  --glacier-deep: #0a1f33;
  --glacier-navy: #12344c;
  --glacier-steel: #5a7a95;
  --glacier-mist: #8aa8bd;
  --glacier-ice: #b8cedd;
  --glacier-fog: #eef4f6;
  --glacier-snow: #f2f6f9;
  --pure-white: #ffffff;
  --ink: #17242d;
  --aging-champagne: #bca06a;
  --gilt: #c4a574;
  --gilt-soft: rgba(196, 165, 116, 0.55);
  --gilt-line: rgba(196, 165, 116, 0.35);
  --brightening-pearl: #e8dde3;
  --divider: #d7e3e8;
  --font-display: "Cormorant Garamond", Georgia, serif;
  --font-sans: "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius: 2px;
  --header-h: 72px;
  --promo-h: 36px;
  --header-stack: calc(var(--promo-h) + var(--header-h));
  --container: 1200px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--glacier-snow);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

h1,
h2,
h3,
.display,
.logo {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  color: var(--glacier-deep);
}

h1 {
  font-size: clamp(48px, 7vw, 72px);
  letter-spacing: 0.04em;
  margin: 0 0 8px;
}

h2 {
  font-size: clamp(28px, 4vw, 40px);
  margin: 0 0 16px;
}

h3 {
  font-size: 22px;
  margin: 0 0 8px;
}

.display {
  font-size: clamp(28px, 4vw, 40px);
  margin: 0 0 16px;
  color: var(--glacier-navy);
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--glacier-steel);
  margin: 0 0 12px;
}

.body {
  font-size: 17px;
  color: var(--glacier-steel);
  max-width: 40em;
}

.footnote {
  font-size: 12px;
  color: var(--glacier-mist);
  line-height: 1.5;
}

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.container.narrow {
  width: min(100% - 40px, 720px);
}

.section {
  padding: 120px 0;
}

.section-head {
  margin-bottom: 48px;
}

/* Header — La Prairie 式：公告条 + 居中 Logo + 左右工具 */
.promo-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 110;
  height: var(--promo-h);
  display: grid;
  place-items: center;
  background: #1a1a1a;
  color: rgba(255, 255, 255, 0.9);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  box-shadow: inset 0 -1px 0 var(--gilt-line);
}

.promo-track {
  position: relative;
  width: min(920px, calc(100% - 48px));
  height: 100%;
  overflow: hidden;
}

.promo-item {
  position: absolute;
  inset: 0;
  margin: 0;
  display: grid;
  place-items: center;
  text-align: center;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.55s ease, transform 0.55s ease;
  pointer-events: none;
}

.promo-item.is-active {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.site-header {
  position: fixed;
  top: var(--promo-h);
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 clamp(18px, 3vw, 40px);
  background: #ffffff;
  backdrop-filter: none;
  border-bottom: 1px solid transparent;
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    height 0.35s ease,
    box-shadow 0.35s ease;
}

.site-header.scrolled {
  height: 64px;
  background: #ffffff;
  border-bottom-color: rgba(0, 0, 0, 0.06);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03);
}

.header-side {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
}

.header-left {
  justify-content: flex-start;
}

.header-right {
  justify-content: flex-end;
}

.logo-mark-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-align: left;
  color: var(--glacier-deep);
  transition: opacity 0.25s ease;
}

.logo-mark-link:hover {
  opacity: 0.72;
}

.header-logo {
  width: 44px;
  height: 44px;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
  object-position: center center;
  /* 山体视觉重心偏下，轻微上移以光学居中 */
  transform: translateY(-2px);
}

.logo-mark-text {
  display: grid;
  gap: 2px;
  justify-items: start;
}

.logo-mark-link .logo {
  font-size: clamp(18px, 1.8vw, 22px);
  letter-spacing: 0.28em;
  margin: 0;
  padding-left: 0.08em;
  line-height: 1;
  color: inherit;
}

.logo-sub {
  font-family: var(--font-sans);
  font-size: 9px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gilt);
  white-space: nowrap;
}

.header-utility {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--glacier-navy);
  transition: opacity 0.25s ease;
}

.header-utility:hover {
  opacity: 0.65;
}

.header-consult {
  margin-left: 6px;
  padding-left: 16px;
  border-left: 1px solid var(--divider);
  color: var(--gilt);
  font-weight: 500;
  letter-spacing: 0.2em;
  transition: color 0.25s ease, opacity 0.25s ease;
}

.header-consult:hover {
  opacity: 1;
  color: var(--aging-champagne);
}

.cart-open {
  position: relative;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-left: 4px;
  border: 0;
  background: transparent;
  color: var(--glacier-deep);
  cursor: pointer;
  padding: 0;
}

.cart-open:hover {
  color: var(--gilt);
}

.cart-count {
  position: absolute;
  top: 4px;
  right: 2px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  background: var(--glacier-navy);
  color: #fff;
  font-size: 10px;
  line-height: 16px;
  text-align: center;
}

.nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  display: none;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 8px 0 20px;
  background: #ffffff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 18px 40px rgba(10, 31, 51, 0.08);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--glacier-navy);
}

.nav.open {
  display: flex;
  animation: navPanelIn 0.28s ease;
}

@keyframes navPanelIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.nav > a,
.nav .nav-item > a {
  padding: 14px clamp(18px, 3vw, 40px);
  color: var(--glacier-navy);
  transition: background 0.28s ease, color 0.28s ease, padding-left 0.28s ease;
}

.nav > a:hover,
.nav .nav-item > a:hover,
.nav > a:focus-visible,
.nav .nav-item > a:focus-visible {
  background: var(--glacier-fog);
  color: var(--glacier-deep);
  padding-left: calc(clamp(18px, 3vw, 40px) + 4px);
}

.nav .btn.btn-primary {
  margin: 12px clamp(18px, 3vw, 40px) 4px;
  width: auto;
  align-self: stretch;
  justify-content: center;
  color: var(--pure-white);
  background: var(--glacier-navy);
  border-color: var(--glacier-navy);
  box-shadow: none;
  transition: background 0.28s ease, color 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}

.nav .btn.btn-primary:hover,
.nav .btn.btn-primary:focus-visible {
  color: var(--pure-white);
  background: var(--glacier-deep);
  border-color: var(--gilt);
  box-shadow: inset 0 0 0 1px var(--gilt-soft);
}

.nav-item {
  position: relative;
}

.sub {
  display: grid;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  padding: 0;
  background: transparent;
  border: 0;
  position: static;
  transform: none;
  left: auto;
  min-width: 0;
  pointer-events: none;
  transition:
    max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.28s ease,
    padding 0.35s ease;
}

.nav-item:hover .sub,
.nav-item:focus-within .sub,
.nav-item.open .sub {
  max-height: 140px;
  opacity: 1;
  padding: 2px 0 10px;
  pointer-events: auto;
}

.sub a {
  padding: 10px clamp(18px, 3vw, 40px) 10px calc(clamp(18px, 3vw, 40px) + 14px);
  white-space: nowrap;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--glacier-steel);
  opacity: 0;
  transform: translateY(-4px);
  transition:
    color 0.25s ease,
    background 0.25s ease,
    opacity 0.28s ease 0.06s,
    transform 0.28s ease 0.06s;
}

.nav-item:hover .sub a,
.nav-item:focus-within .sub a,
.nav-item.open .sub a {
  opacity: 1;
  transform: none;
}

.nav-item:hover .sub a:nth-child(2),
.nav-item:focus-within .sub a:nth-child(2),
.nav-item.open .sub a:nth-child(2) {
  transition-delay: 0.12s, 0.12s, 0.12s, 0.12s;
}

.sub a:hover,
.sub a:focus-visible {
  color: var(--glacier-deep);
  background: rgba(238, 244, 246, 0.9);
}

.nav-toggle {
  display: flex;
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--glacier-deep);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  border-radius: var(--radius);
  font-size: 14px;
  letter-spacing: 0.04em;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-sm {
  min-height: 40px;
  padding: 0 18px;
}

.btn-primary {
  background: var(--glacier-navy);
  color: var(--pure-white);
  border: 1px solid var(--glacier-navy);
}

.btn-primary:hover {
  background: var(--glacier-deep);
  border-color: var(--gilt-soft);
  box-shadow: 0 0 0 1px var(--gilt-line);
}

.btn-ghost {
  background: transparent;
  color: var(--glacier-navy);
  border: 1px solid var(--glacier-mist);
}

.btn-ghost:hover {
  border-color: var(--glacier-navy);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  align-items: center;
  padding: calc(var(--header-h) + 40px) 32px 64px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(184, 206, 221, 0.55), transparent 60%),
    linear-gradient(160deg, #f7fafb 0%, #e8f0f4 45%, #d5e4ec 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(242, 246, 249, 0.92) 0%, rgba(242, 246, 249, 0.35) 45%, transparent 70%);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 520px;
  padding-left: max(0px, calc((100vw - var(--container)) / 2 - 32px));
}

.hero-copy .lede {
  color: var(--glacier-steel);
  font-size: 17px;
  margin: 0;
}

.hero-media {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  align-items: flex-end;
}

.hero-media img {
  width: min(100%, 640px);
  filter: drop-shadow(0 24px 48px rgba(18, 52, 76, 0.12));
}

/* Insight */
.insight {
  background: var(--pure-white);
  text-align: center;
}

.insight .body {
  margin-inline: auto;
}

/* Series */
.series {
  padding-top: 0;
}

.series-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.series-panel {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  background: var(--glacier-fog);
  color: var(--glacier-deep);
}

.series-panel img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center 30%;
  padding: 48px 32px 160px;
  transition: transform 0.7s ease;
}

.series-panel:hover img {
  transform: scale(1.03);
}

.series-panel.aging {
  background: linear-gradient(180deg, #e8eef3 0%, #d9e4ec 100%);
}

.series-panel.brightening {
  background: linear-gradient(180deg, #f4f8fa 0%, #e6eef3 100%);
}

.series-meta {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 32px;
  background: linear-gradient(180deg, transparent, rgba(242, 246, 249, 0.95) 35%);
}

.link-arrow {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--glacier-navy);
  border-bottom: 1px solid var(--glacier-ice);
  padding-bottom: 2px;
}

/* Tech */
.tech {
  background: var(--glacier-deep);
  color: var(--glacier-ice);
}

.tech h2,
.tech h3,
.tech .eyebrow {
  color: var(--pure-white);
}

.tech .eyebrow {
  color: var(--glacier-mist);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.tech-item {
  padding: 28px 24px;
  border: 1px solid rgba(184, 206, 221, 0.25);
}

.tech-item p {
  margin: 0;
  font-size: 14px;
  color: var(--glacier-ice);
  opacity: 0.85;
}

/* Evidence */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.stat {
  padding: 32px 20px;
  background: var(--pure-white);
  border: 1px solid var(--divider);
  text-align: center;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 48px;
  margin: 0;
  color: var(--glacier-navy);
  font-variant-numeric: tabular-nums;
}

.stat-num::after {
  content: none;
}

.stat-unit {
  margin: 4px 0;
  font-size: 13px;
  color: var(--glacier-steel);
}

.stat-label {
  margin: 0;
  font-size: 14px;
  color: var(--glacier-mist);
}

/* Ingredients */
.ingredients {
  background: var(--pure-white);
}

.ing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.ing-grid article {
  padding: 28px 24px;
  border-top: 1px solid var(--glacier-ice);
}

.ing-grid p {
  margin: 0;
  font-size: 14px;
  color: var(--glacier-steel);
}

/* Trust / Consult */
.trust-list {
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
  display: grid;
  gap: 8px;
  color: var(--glacier-steel);
}

.consult-band {
  background:
    linear-gradient(135deg, rgba(184, 206, 221, 0.35), rgba(238, 244, 246, 0.9)),
    var(--glacier-fog);
  text-align: center;
}

.consult-band .body {
  margin-inline: auto;
}

.consult-band .footnote {
  margin-top: 20px;
}

/* Footer */
.site-footer {
  background: var(--glacier-deep);
  color: var(--glacier-ice);
  padding: 64px 0 48px;
}

.site-footer .logo {
  color: var(--pure-white);
}

.footer-tag {
  letter-spacing: 0.16em;
  font-size: 12px;
  color: var(--gilt);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 32px;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.site-footer .footnote {
  color: rgba(184, 206, 221, 0.55);
}

/* Inner pages */
.page-hero {
  padding: calc(var(--header-h) + 72px) 0 72px;
  background: linear-gradient(180deg, #e8f0f4, var(--glacier-snow));
}

.page-hero .container {
  display: grid;
  gap: 16px;
}

.sku-list {
  display: grid;
  gap: 16px;
}

.sku-row {
  display: grid;
  grid-template-columns: 220px 1fr auto;
  gap: 32px;
  align-items: center;
  padding: 24px;
  background: var(--pure-white);
  border: 1px solid var(--divider);
}

.sku-row img {
  width: 100%;
  height: 180px;
  object-fit: contain;
  background: var(--glacier-fog);
}

.pdp {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.pdp-gallery {
  background: var(--glacier-fog);
  padding: 40px;
}

.pdp-gallery img {
  width: 100%;
  object-fit: contain;
  max-height: 520px;
  margin-inline: auto;
}

.benefit-list {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--glacier-steel);
}

.form {
  display: grid;
  gap: 16px;
  max-width: 520px;
  margin-inline: auto;
  text-align: left;
}

.form label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--glacier-steel);
}

.form input,
.form select,
.form textarea {
  font: inherit;
  padding: 12px 14px;
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  background: var(--pure-white);
  color: var(--ink);
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: 2px solid var(--glacier-mist);
  outline-offset: 1px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border: 1px solid var(--divider);
  background: var(--pure-white);
  padding: 8px 14px;
  font-size: 13px;
  border-radius: var(--radius);
  cursor: pointer;
}

.chip.active {
  border-color: var(--glacier-navy);
  color: var(--glacier-navy);
}

.muted-box {
  margin-top: 32px;
  padding: 20px;
  border: 1px dashed var(--glacier-ice);
  color: var(--glacier-steel);
  font-size: 14px;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .series-panel img {
    transition: none;
  }
}

/* Responsive */
@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: calc(var(--header-h) + 24px);
    text-align: center;
  }

  .hero-copy {
    padding-left: 0;
    max-width: none;
    order: 1;
  }

  .hero-media {
    order: 2;
  }

  .hero-bg {
    background: linear-gradient(180deg, rgba(242, 246, 249, 0.85), transparent 55%);
  }

  .cta-row {
    justify-content: center;
  }

  .series-grid,
  .tech-grid,
  .stats,
  .ing-grid,
  .footer-grid,
  .pdp {
    grid-template-columns: 1fr 1fr;
  }

  .sku-row {
    grid-template-columns: 140px 1fr;
  }

  .sku-row .btn {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .site-header {
    padding: 0 16px;
  }

  .header-utility:not(.header-consult):not(.header-science) {
    display: none;
  }

  .logo-sub {
    font-size: 8px;
    letter-spacing: 0.18em;
  }

  .header-logo {
    width: 40px;
    height: 40px;
  }

  .nav {
    top: 100%;
  }

  .section {
    padding: 72px 0;
  }

  .series-grid,
  .tech-grid,
  .stats,
  .ing-grid,
  .footer-grid,
  .pdp,
  .sku-row {
    grid-template-columns: 1fr;
  }

  .series-panel {
    min-height: 420px;
  }

  .hero-cinema-copy {
    left: 24px;
    right: 24px;
    bottom: 28px;
    max-width: none;
    text-align: center;
  }

  .hero-cinema-copy .btn {
    margin-inline: auto;
  }

  .hero-scene {
    object-position: 70% 45%;
    inset: -10% -22% -6% -2%;
  }

  .hero-light-ring {
    left: 62%;
    top: 42%;
    width: min(90vw, 480px);
    height: min(90vw, 480px);
  }

  .hero-focus-glow {
    background: radial-gradient(
      ellipse 48% 42% at 62% 42%,
      rgba(210, 235, 245, 0.5) 0%,
      rgba(120, 180, 210, 0.14) 45%,
      transparent 70%
    );
  }

  .hero-cinema-veil {
    background:
      linear-gradient(
        180deg,
        rgba(6, 32, 48, 0.28) 0%,
        transparent 40%,
        rgba(5, 26, 40, 0.55) 100%
      );
  }

  .series-board {
    padding: 40px 28px 48px;
    gap: 20px;
  }

  .tech-cinema {
    grid-template-columns: 1fr 1fr;
  }

  .tech-slide {
    min-height: 42vw;
  }

  .visual-band {
    min-height: 70vh;
  }

  .filmstrip-track img {
    width: min(70vw, 320px);
    height: 280px;
  }

  .site-footer.compact .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* ========== Visual-first homepage ========== */
.display.slim {
  margin: 0 0 28px;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.logo-mark {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 64px);
  letter-spacing: 0.14em;
  margin: 0 0 8px;
  color: var(--pure-white);
  text-shadow: 0 6px 36px rgba(6, 28, 44, 0.5);
}

.section-flush {
  padding: 0;
}

.hero-cinema {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  background: #0a2a3f;
  color: var(--pure-white);
  overflow: hidden;
}

.hero-cinema-media {
  position: absolute;
  inset: 0;
}

/* 整图场景：裁切掉右侧空蓝，构图压向产品 */
.hero-scene {
  position: absolute;
  inset: -12% -18% -8% -4%;
  width: auto;
  height: auto;
  min-width: 118%;
  min-height: 118%;
  object-fit: cover;
  object-position: 72% 48%;
  transform-origin: 70% 48%;
  animation: heroPunchFocus 8s cubic-bezier(0.4, 0.05, 0.2, 1) 1 forwards;
  z-index: 0;
  will-change: transform;
}

/* 产品区旋转光扫（冰面高光） */
.hero-light-ring {
  position: absolute;
  z-index: 2;
  left: 68%;
  top: 48%;
  width: min(58vw, 620px);
  height: min(58vw, 620px);
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    rgba(220, 240, 250, 0.55) 18deg,
    rgba(160, 210, 235, 0.2) 42deg,
    transparent 78deg,
    transparent 360deg
  );
  filter: blur(18px);
  mix-blend-mode: screen;
  opacity: 0.75;
  animation: heroLightSpin 5.5s linear infinite;
  pointer-events: none;
  will-change: transform;
  transform: translate(-50%, -50%);
}

.hero-focus-glow {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: radial-gradient(
    ellipse 36% 40% at 70% 48%,
    rgba(210, 235, 245, 0.5) 0%,
    rgba(120, 180, 210, 0.14) 45%,
    transparent 70%
  );
  mix-blend-mode: soft-light;
  animation: heroGlowPulse 8s ease-in-out 1 forwards;
  will-change: opacity;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero-cinema.has-video .hero-scene,
.hero-cinema.has-video .hero-focus-glow,
.hero-cinema.has-video .hero-light-ring {
  opacity: 0;
  pointer-events: none;
  animation: none;
}

.hero-cinema-veil {
  position: absolute;
  inset: 0;
  z-index: 4;
  background:
    linear-gradient(
      90deg,
      rgba(6, 32, 48, 0.5) 0%,
      rgba(8, 40, 58, 0.18) 26%,
      transparent 48%
    ),
    linear-gradient(
      180deg,
      rgba(8, 40, 58, 0.22) 0%,
      transparent 32%,
      rgba(5, 26, 40, 0.36) 100%
    );
  pointer-events: none;
}

.hero-cinema-copy {
  position: absolute;
  z-index: 5;
  left: max(32px, calc((100vw - var(--container)) / 2));
  bottom: 14vh;
  max-width: 440px;
}

.hero-cinema-copy .display {
  color: rgba(230, 244, 250, 0.95);
  text-shadow: 0 4px 28px rgba(6, 28, 44, 0.45);
}

.hero-cinema .btn-primary {
  background: rgba(232, 244, 250, 0.94);
  color: #0a2a3f;
  border-color: transparent;
  backdrop-filter: blur(8px);
}

.hero-cinema .btn-primary:hover {
  background: #ffffff;
  box-shadow: 0 0 0 1px var(--gilt-soft);
}

.scroll-hint {
  position: absolute;
  z-index: 5;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(200, 226, 236, 0.55);
}

.scroll-hint::after {
  content: "";
  display: block;
  width: 1px;
  height: 28px;
  margin: 10px auto 0;
  background: linear-gradient(180deg, var(--gilt-soft), transparent);
}

/* 更快更明显的推近 → 回拉 */
@keyframes heroPunchFocus {
  0%,
  8% {
    transform: scale(1.06);
  }
  38%,
  48% {
    transform: scale(1.28);
  }
  82%,
  100% {
    transform: scale(1.06);
  }
}

@keyframes heroLightSpin {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes heroGlowPulse {
  0%,
  10% {
    opacity: 0.35;
  }
  38%,
  48% {
    opacity: 1;
  }
  80%,
  100% {
    opacity: 0.35;
  }
}

/* La Prairie 式顶栏：始终浅色实体，不再做首屏反白 */
.site-header:not(.scrolled) {
  color: var(--glacier-deep);
}

/* 双系列棋盘格 */
.series-board {
  display: grid;
  gap: 28px;
  width: 100%;
  margin: 0;
  padding: 48px clamp(20px, 8vw, 120px) 64px;
  background: var(--pure-white);
  box-sizing: border-box;
}

.series-row {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  min-height: 0;
  border: 0;
  background: transparent;
}

.series-row.reverse {
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
}

.series-row:first-child {
  border: 0;
}

.series-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 10px;
  padding: clamp(28px, 4vw, 48px) clamp(28px, 4.5vw, 56px);
  background: var(--pure-white);
}

/* 第一系列文案靠右，贴近图片，与第二系列图文间距一致 */
.series-row.brightening .series-copy {
  align-items: flex-end;
  text-align: right;
  padding-left: clamp(36px, 6vw, 80px);
  padding-right: clamp(16px, 2.2vw, 28px);
}

.series-row.aging .series-copy {
  padding-left: clamp(16px, 2.2vw, 28px);
  padding-right: clamp(36px, 6vw, 80px);
}

.series-kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--glacier-mist);
}

.series-row.aging .series-kicker {
  color: var(--gilt);
}

.series-row.aging .series-more {
  border-bottom-color: var(--gilt);
}

.series-row.aging .series-more:hover,
.series-row.aging .series-more:focus-visible {
  color: var(--aging-champagne);
  border-bottom-color: var(--aging-champagne);
}

.series-headline {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(24px, 2.6vw, 34px);
  letter-spacing: 0.02em;
  color: var(--ink);
  line-height: 1.25;
}

.series-sub {
  margin: 0;
  max-width: 16em;
  font-size: clamp(14px, 1.2vw, 16px);
  line-height: 1.6;
  color: var(--glacier-steel);
}

.series-more {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 3px;
  transition: letter-spacing 0.35s ease, color 0.3s ease, border-color 0.3s ease;
}

.series-more:hover,
.series-more:focus-visible {
  letter-spacing: 0.28em;
  color: var(--glacier-navy);
  border-bottom-color: var(--glacier-navy);
}

.series-media {
  position: relative;
  overflow: hidden;
  background: var(--glacier-fog);
  min-height: 280px;
  aspect-ratio: 5 / 4;
  border: 0;
}

.series-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

.series-media:hover img,
.series-media:focus-visible img {
  transform: scale(1.05);
}

/* 双系列滚动入场 */
.enter-series .series-copy,
.enter-series .series-media {
  opacity: 0;
  will-change: transform, opacity;
  transition:
    opacity 0.85s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.85s cubic-bezier(0.22, 1, 0.36, 1);
}

.enter-series.brightening .series-copy {
  transform: translateX(-36px);
}

.enter-series.brightening .series-media {
  transform: translateX(36px) scale(1.04);
  transition-delay: 0.08s;
}

.enter-series.aging .series-media {
  transform: translateX(-36px) scale(1.04);
  transition-delay: 0.1s;
}

.enter-series.aging .series-copy {
  transform: translateX(36px);
  transition-delay: 0.18s;
}

.series-board.in .enter-series .series-copy,
.series-board.in .enter-series .series-media,
.enter-series.in .series-copy,
.enter-series.in .series-media {
  opacity: 1;
  transform: none;
}

.series-board.entered .enter-series .series-copy,
.series-board.entered .enter-series .series-media {
  transition: opacity 0.45s ease, transform 0.45s ease;
}

/* 核心科技视频 */
.tech-cinema {
  background: var(--glacier-deep);
}

.tech-cinema-stage {
  position: relative;
  min-height: min(78vh, 820px);
  overflow: hidden;
  color: var(--pure-white);
}

.tech-cinema-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  background: #071722;
}

.tech-cinema-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 23, 34, 0.72) 0%, rgba(7, 23, 34, 0.28) 48%, rgba(7, 23, 34, 0.18) 100%),
    linear-gradient(180deg, rgba(7, 23, 34, 0.2) 0%, transparent 35%, rgba(7, 23, 34, 0.55) 100%);
  pointer-events: none;
}

.tech-cinema-copy {
  position: absolute;
  left: clamp(24px, 6vw, 72px);
  bottom: clamp(36px, 7vw, 72px);
  z-index: 2;
  max-width: min(480px, calc(100% - 48px));
  display: grid;
  gap: 10px;
}

.tech-cinema-copy .eyebrow {
  margin: 0;
  color: var(--gilt-soft);
}

.tech-cinema-title {
  margin: 0;
  font-weight: 400;
  font-size: clamp(32px, 4.5vw, 52px);
  letter-spacing: 0.06em;
  color: var(--pure-white);
}

.tech-cinema-text {
  margin: 0 0 8px;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.76);
}

.tech-cinema-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.tech-cinema-toggle {
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.9);
  font: inherit;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0 0 3px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
}

/* 品牌影片 */
.brand-film {
  background: var(--glacier-deep);
}

.brand-film-stage {
  position: relative;
  min-height: min(88vh, 900px);
  overflow: hidden;
  color: var(--pure-white);
}

.brand-film-slides {
  position: absolute;
  inset: 0;
}

.brand-film-slides figure {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  transition: opacity 1.1s ease;
}

.brand-film-slides figure.is-active {
  opacity: 1;
}

.brand-film-slides img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.08);
  animation: brandKen 12s ease-in-out infinite alternate;
}

.brand-film-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 31, 51, 0.28), rgba(10, 31, 51, 0.58)),
    radial-gradient(ellipse at 50% 40%, transparent 20%, rgba(10, 31, 51, 0.45) 100%);
  pointer-events: none;
}

.brand-film-caption {
  position: absolute;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%);
  z-index: 2;
  width: min(920px, calc(100% - 48px));
  text-align: center;
  display: grid;
  gap: 14px;
  justify-items: center;
}

.brand-film-caption .eyebrow {
  color: var(--gilt-soft);
}

.brand-film-line {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 5.2vw, 64px);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.2;
  color: var(--pure-white);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.brand-film-support {
  margin: 0;
  max-width: 34em;
  font-size: clamp(13px, 1.4vw, 16px);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.brand-film-caption.is-switching .brand-film-line,
.brand-film-caption.is-switching .brand-film-support {
  opacity: 0;
  transform: translateY(10px);
}

.brand-film-bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 28px clamp(20px, 4vw, 48px);
  background: linear-gradient(180deg, transparent, rgba(10, 31, 51, 0.72));
}

.brand-film-toggle {
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.88);
  font: inherit;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  padding-bottom: 3px;
}

.brand-film-progress {
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.22);
  overflow: hidden;
}

.brand-film-progress span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--gilt), rgba(255, 255, 255, 0.92));
  transform-origin: left center;
}

@keyframes brandKen {
  from {
    transform: scale(1.08) translate3d(-1.2%, 0, 0);
  }
  to {
    transform: scale(1.16) translate3d(1.2%, -1%, 0);
  }
}

.text-link {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
  padding-bottom: 4px;
}

.text-link.dark {
  color: var(--glacier-navy);
  border-bottom-color: var(--glacier-ice);
}

/* 六 SKU 网格 */
.sku-showcase {
  background: var(--glacier-snow);
  padding: 96px 0 120px;
}

.sku-showcase .section-head {
  text-align: center;
}

.sku-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.sku-tile {
  display: grid;
  grid-template-rows: 1fr auto auto;
  background: var(--pure-white);
  border: 1px solid transparent;
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.35s ease, box-shadow 0.35s ease;
}

.sku-tile-link {
  display: grid;
  color: inherit;
}

.sku-tile img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  padding: 24px;
  background: linear-gradient(160deg, #f7fafb, #e4eef3);
  transition: transform 0.5s ease;
}

.sku-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 0 18px 16px;
}

.sku-price {
  font-size: 13px;
  color: var(--glacier-navy);
}

.sku-price em {
  font-style: normal;
  font-size: 11px;
  color: var(--glacier-mist);
  letter-spacing: 0.06em;
}

.sku-add {
  appearance: none;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--glacier-deep);
  border-bottom: 1px solid var(--gilt-line);
  padding: 0 0 3px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, opacity 0.2s ease;
}

.sku-add:hover {
  border-bottom-color: var(--gilt);
  color: var(--aging-champagne);
}

.sku-add.added {
  opacity: 0.55;
}

/* 六 SKU 滚动入场（错落） */
.enter-sku {
  opacity: 0;
  transform: translateY(40px) scale(0.96);
  transition:
    opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.3s ease,
    box-shadow 0.35s ease;
  transition-delay: calc(var(--enter-i, 0) * 90ms), calc(var(--enter-i, 0) * 90ms), 0s, 0s;
}

.enter-sku img {
  opacity: 0;
  transform: translateY(16px) scale(0.94);
  transition:
    opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: calc(var(--enter-i, 0) * 90ms + 80ms);
}

.enter-sku .sku-meta {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
  transition-delay: calc(var(--enter-i, 0) * 90ms + 160ms);
}

.sku-grid.in .enter-sku,
.enter-sku.in {
  opacity: 1;
  transform: none;
}

.sku-grid.in .enter-sku img,
.enter-sku.in img {
  opacity: 1;
  transform: none;
}

.sku-grid.in .enter-sku .sku-meta,
.enter-sku.in .sku-meta {
  opacity: 1;
  transform: none;
}

/* 入场结束后再清 delay，避免打断错落，并恢复悬停手感 */
.sku-grid.entered .enter-sku {
  transition:
    opacity 0.35s ease,
    transform 0.35s ease,
    border-color 0.3s ease,
    box-shadow 0.35s ease;
  transition-delay: 0s;
}

.sku-grid.entered .enter-sku img {
  transition: transform 0.5s ease, opacity 0.35s ease;
  transition-delay: 0s;
}

.sku-grid.entered .enter-sku .sku-meta {
  transition-delay: 0s;
}

.sku-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px 10px;
  border-top: 1px solid var(--divider);
}

.sku-id {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--glacier-mist);
}

.sku-tile:nth-child(n + 4) .sku-id {
  color: var(--gilt);
}

.sku-tile:nth-child(n + 4):hover,
.sku-tile:nth-child(n + 4):focus-visible {
  border-color: var(--gilt-line);
}

.sku-name {
  font-size: 14px;
  color: var(--glacier-navy);
}

.sku-grid.entered .sku-tile:hover,
.sku-grid.entered .sku-tile:focus-visible {
  border-color: var(--glacier-ice);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(18, 52, 76, 0.08);
}

.sku-grid.entered .sku-tile:hover img,
.sku-grid.entered .sku-tile:focus-visible img {
  transform: scale(1.05);
}

.consult-tech {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: clamp(56px, 9vw, 112px);
  min-height: min(62vh, 640px);
  display: grid;
  place-items: center;
  padding: clamp(72px, 10vw, 120px) 24px;
  background:
    radial-gradient(ellipse 72% 58% at 50% 38%, rgba(138, 168, 189, 0.32), transparent 70%),
    radial-gradient(ellipse 50% 40% at 80% 90%, rgba(184, 206, 221, 0.12), transparent 60%),
    linear-gradient(165deg, #1a4560 0%, var(--glacier-navy) 42%, var(--glacier-deep) 100%);
  color: var(--pure-white);
}

.consult-tech-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.consult-tech-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184, 206, 221, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 206, 221, 0.14) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 65% 55% at 50% 45%, #000 20%, transparent 75%);
  opacity: 0.7;
}

.consult-tech-scan {
  position: absolute;
  left: 0;
  right: 0;
  height: 28%;
  top: -30%;
  background: linear-gradient(
    180deg,
    transparent,
    rgba(184, 206, 221, 0.12),
    transparent
  );
  animation: consultScan 7.5s ease-in-out infinite;
}

.consult-tech-orb {
  position: absolute;
  width: min(52vw, 420px);
  aspect-ratio: 1;
  left: 50%;
  top: 42%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(184, 206, 221, 0.28);
  box-shadow:
    inset 0 0 0 1px rgba(242, 246, 249, 0.06),
    0 0 80px rgba(90, 122, 149, 0.28);
  animation: consultOrb 10s ease-in-out infinite;
}

.consult-tech-orb::before,
.consult-tech-orb::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px dashed rgba(184, 206, 221, 0.22);
}

.consult-tech-orb::after {
  inset: 28%;
  border-style: solid;
  border-color: rgba(138, 168, 189, 0.28);
}

@keyframes consultScan {
  0% { top: -30%; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

@keyframes consultOrb {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.85; }
  50% { transform: translate(-50%, -52%) scale(1.04); opacity: 1; }
}

.consult-tech-frame {
  position: relative;
  z-index: 1;
  width: min(920px, 100%);
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 14px;
  padding: clamp(28px, 4vw, 40px) clamp(20px, 3vw, 32px);
  border: 1px solid rgba(184, 206, 221, 0.28);
  background: rgba(18, 52, 76, 0.48);
  backdrop-filter: blur(8px);
  box-shadow: 0 12px 40px rgba(10, 31, 51, 0.22);
}

.consult-tech-frame::before,
.consult-tech-frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--glacier-ice);
  border-style: solid;
}

.consult-tech-frame::before {
  top: -1px;
  left: -1px;
  border-width: 1px 0 0 1px;
}

.consult-tech-frame::after {
  right: -1px;
  bottom: -1px;
  border-width: 0 1px 1px 0;
}

.consult-tech-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 14px;
  margin-bottom: 4px;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--glacier-ice);
}

.consult-tech-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--glacier-mist);
  box-shadow: 0 0 0 3px rgba(138, 168, 189, 0.22);
  animation: consultPulse 2.4s ease-in-out infinite;
}

@keyframes consultPulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

.consult-tech-kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(184, 206, 221, 0.9);
}

.consult-tech-title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: clamp(28px, 4.6vw, 48px);
  letter-spacing: 0.06em;
  line-height: 1.2;
  color: var(--pure-white);
}

.consult-tech-sub {
  margin: 0 0 10px;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(232, 240, 244, 0.82);
}

.consult-tech-actions {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 8px;
}

.consult-tech-card {
  position: relative;
  display: grid;
  gap: 8px;
  text-align: left;
  padding: 20px 22px 18px;
  border: 1px solid rgba(184, 206, 221, 0.28);
  background: linear-gradient(160deg, rgba(42, 90, 120, 0.55), rgba(18, 52, 76, 0.72));
  color: var(--pure-white);
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}

.consult-tech-card:hover {
  border-color: var(--glacier-ice);
  background: linear-gradient(160deg, rgba(74, 118, 148, 0.58), rgba(26, 69, 96, 0.8));
  transform: translateY(-2px);
}

.consult-tech-card-ai {
  border-color: rgba(184, 206, 221, 0.4);
  background: linear-gradient(160deg, rgba(90, 122, 149, 0.4), rgba(18, 52, 76, 0.7));
}

.consult-tech-card-code {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--glacier-ice);
}

.consult-tech-card-title {
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--pure-white);
}

.consult-tech-card-desc {
  font-size: 12px;
  line-height: 1.6;
  color: rgba(184, 206, 221, 0.88);
}

.consult-tech-card-go {
  position: absolute;
  right: 18px;
  bottom: 16px;
  font-size: 16px;
  color: var(--glacier-mist);
  transition: transform 0.3s ease, color 0.3s ease;
}

.consult-tech-card:hover .consult-tech-card-go {
  color: var(--glacier-ice);
  transform: translateX(4px);
}

.consult-tech-footer {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 20px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(184, 206, 221, 0.2);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(184, 206, 221, 0.7);
}

@media (max-width: 720px) {
  .consult-tech-actions {
    grid-template-columns: 1fr;
  }

  .consult-tech-footer {
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .consult-tech-scan,
  .consult-tech-orb,
  .consult-tech-dot {
    animation: none;
  }
}

/* Logo 视频 + PPT 12/13 医研阵容 */
.lab-split {
  background: var(--glacier-snow);
  margin-bottom: clamp(8px, 1.5vw, 16px);
}

.lab-split-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  min-height: min(78vh, 820px);
}

.lab-split-media {
  position: relative;
  background: #0a1a24;
  min-height: 420px;
  overflow: hidden;
}

.lab-split-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  background: #0a1a24;
  transform: scale(1.02);
}

.lab-split-media-bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  background: linear-gradient(180deg, transparent, rgba(7, 23, 34, 0.72));
}

.lab-split-media-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gilt-soft);
}

.lab-split-toggle {
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.92);
  font: inherit;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0 0 3px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
}

.lab-split-panel {
  display: flex;
  flex-direction: column;
  padding: clamp(36px, 5vw, 64px) clamp(28px, 4.5vw, 56px);
  background: var(--pure-white);
}

.lab-split-head {
  margin-bottom: 28px;
}

.lab-split-head h2 {
  margin: 0 0 8px;
  font-weight: 400;
}

.lab-split-lead {
  margin: 0 0 18px;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--glacier-steel);
}

.lab-chapter {
  display: grid;
  gap: 12px;
}

.lab-chapter-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gilt);
  min-height: 1.2em;
  transition: opacity 0.35s ease;
}

.lab-chapter-progress {
  height: 1px;
  background: var(--divider);
  overflow: hidden;
}

.lab-chapter-progress span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--gilt);
  transform-origin: left center;
}

.lab-chapter-progress span.is-running {
  animation: labProgress var(--lab-duration, 8s) linear forwards;
}

@keyframes labProgress {
  from { width: 0%; }
  to { width: 100%; }
}

.lab-scenes {
  flex: 1;
  display: grid;
  align-content: start;
  min-height: 520px;
}

.lab-scene {
  grid-area: 1 / 1;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.55s ease, transform 0.55s ease, visibility 0.55s ease;
}

.lab-scene.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
  z-index: 1;
}

.lab-scientist-list {
  display: grid;
  gap: 28px;
}

.lab-scientist-card {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  padding-bottom: 28px;
}

.lab-scientist-card:last-child {
  padding-bottom: 0;
}

.lab-scientist-photo {
  width: 112px;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--glacier-fog);
}

.lab-scientist-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.lab-scientist-copy h3 {
  margin: 0 0 8px;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 400;
}

.lab-scientist-copy .team-role {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gilt);
}

.lab-scientist-copy .team-org {
  margin: 0 0 10px;
  color: var(--glacier-navy);
  font-size: 13px;
  line-height: 1.5;
}

.lab-scientist-copy > p:last-child {
  margin: 0;
  color: var(--glacier-steel);
  line-height: 1.7;
  font-size: 13px;
}

.lab-network-kicker {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gilt);
}

.lab-network-title {
  margin: 0 0 22px;
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 400;
}

.lab-network-list {
  display: grid;
  gap: 0;
  margin-bottom: 28px;
}

.lab-network-item {
  width: 100%;
  padding: 16px 0;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 8px;
  transition: opacity 0.4s ease;
  opacity: 0.42;
}

.lab-network-item:last-child {
  padding-bottom: 0;
}

.lab-network-item.is-active {
  opacity: 1;
}

.lab-network-flag {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gilt);
  padding-top: 3px;
}

.lab-network-name {
  font-size: 16px;
  color: var(--glacier-navy);
  line-height: 1.4;
}

.lab-network-detail {
  grid-column: 2;
  margin: 0;
  color: var(--glacier-steel);
  font-size: 13px;
  line-height: 1.7;
}

.lab-endorsements {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.lab-endorsements img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--glacier-fog);
  filter: grayscale(0.15);
  opacity: 0.9;
}

@media (max-width: 980px) {
  .lab-split-grid {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .lab-split-media {
    min-height: min(52vh, 480px);
  }

  .lab-scenes {
    min-height: 480px;
  }

  .lab-scientist-card {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 16px;
  }

  .lab-scientist-photo {
    width: 96px;
  }
}

@media (max-width: 640px) {
  .lab-split-panel {
    padding: 32px 20px 40px;
  }

  .lab-scenes {
    min-height: 520px;
  }

  .lab-endorsements {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
  }
}

/* 专业团队（保留角色字色变量供 lab-split 复用） */
.team-role {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gilt);
}

/* 页脚前咨询区块样式见 .consult-tech */

/* 丰富页脚 */
.site-footer-rich {
  padding: 72px 0 40px;
}

.footer-rich-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: 40px 28px;
  margin-bottom: 48px;
}

.footer-mission {
  margin: 16px 0 0;
  max-width: 18em;
  font-size: 14px;
  color: var(--glacier-mist);
  line-height: 1.7;
}

.footer-heading {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(232, 244, 250, 0.55);
}

.site-footer-rich .footer-links {
  display: grid;
  gap: 10px;
}

.site-footer-rich .footer-links a:hover {
  color: var(--pure-white);
}

.footer-note {
  font-size: 13px;
  color: rgba(184, 206, 221, 0.55);
  line-height: 1.5;
}

.footer-bottom {
  border-top: 1px solid rgba(184, 206, 221, 0.15);
  padding-top: 24px;
}

.site-footer.compact {
  padding: 40px 0;
}

.site-footer.compact .footer-grid {
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.site-footer.compact .footer-links {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.site-footer.compact .footer-tag {
  margin: 0;
  text-align: right;
}

@media (max-width: 960px) {
  .sku-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-rich-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .series-board {
    padding: 32px 16px 40px;
    gap: 16px;
  }

  .series-row,
  .series-row.reverse {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .series-row.reverse .series-media {
    order: -1;
  }

  .series-copy {
    padding: 28px 24px 32px;
    min-height: 0;
    gap: 8px;
  }

  .series-row.brightening .series-copy,
  .series-row.aging .series-copy {
    align-items: flex-start;
    text-align: left;
    padding-left: 24px;
    padding-right: 24px;
  }

  .series-more {
    margin-top: 8px;
  }

  .series-media {
    min-height: 0;
    aspect-ratio: 16 / 11;
  }

  .brand-film-stage,
  .tech-cinema-stage {
    min-height: 72vh;
  }

  .tech-cinema-copy {
    left: 24px;
    right: 24px;
    max-width: none;
    bottom: 28px;
  }

  .brand-film-bar {
    flex-wrap: wrap;
    gap: 14px;
  }

  .brand-film-progress {
    order: 3;
    flex: 1 1 100%;
  }

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

  .footer-rich-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-scene,
  .hero-focus-glow,
  .hero-light-ring,
  .brand-film-slides img {
    animation: none;
  }

  .hero-focus-glow {
    opacity: 0.4;
  }

  .hero-light-ring {
    opacity: 0.35;
  }

  .enter-series .series-copy,
  .enter-series .series-media,
  .enter-sku,
  .enter-sku img,
  .enter-sku .sku-meta {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .series-media img,
  .sku-tile,
  .sku-tile img {
    transition: none;
  }
}

/* 购物车抽屉（自原型03） */
.cart-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(10, 31, 51, 0.35);
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 210;
  width: min(100%, 400px);
  height: 100%;
  background: #fff;
  display: grid;
  grid-template-rows: auto 1fr auto;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: -16px 0 48px rgba(10, 31, 51, 0.12);
}

.cart-drawer.open {
  transform: translateX(0);
}

.cart-drawer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 22px;
  border-bottom: 1px solid var(--divider);
}

.cart-drawer-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--glacier-deep);
}

.cart-close {
  width: 36px;
  height: 36px;
  border: 0;
  background: transparent;
  color: var(--glacier-navy);
  font-size: 18px;
  cursor: pointer;
}

.cart-drawer-body {
  overflow: auto;
  padding: 8px 22px 24px;
}

.cart-empty {
  margin: 48px 0;
  text-align: center;
  color: var(--glacier-steel);
}

.cart-lines {
  list-style: none;
  margin: 0;
  padding: 0;
}

.cart-line {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--divider);
}

.cart-line img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  background: var(--glacier-fog);
}

.cart-line-name {
  margin: 0 0 4px;
  font-size: 14px;
  color: var(--glacier-deep);
}

.cart-line-price {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--glacier-steel);
}

.cart-qty {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--divider);
  padding: 4px 8px;
}

.cart-qty button {
  width: 22px;
  height: 22px;
  border: 0;
  background: transparent;
  color: var(--glacier-navy);
  cursor: pointer;
  padding: 0;
}

.cart-line-remove {
  margin-left: 12px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--glacier-mist);
  text-decoration: underline;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.cart-drawer-foot {
  padding: 20px 22px 28px;
  border-top: 1px solid var(--divider);
  display: grid;
  gap: 12px;
}

.cart-subtotal {
  display: flex;
  justify-content: space-between;
  font-size: 15px;
  color: var(--glacier-deep);
}

.cart-footnote {
  margin: 0;
  font-size: 12px;
  color: var(--glacier-mist);
}

.btn-checkout {
  height: 48px;
  border: 0;
  background: var(--glacier-navy);
  color: #fff;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 12px;
  opacity: 0.45;
  cursor: not-allowed;
}

.cart-consult-link {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--glacier-navy);
  border-bottom: 1px solid var(--gilt-line);
  justify-self: start;
  padding-bottom: 3px;
}

.cart-consult-link:hover {
  border-bottom-color: var(--gilt);
}

@media (prefers-reduced-motion: reduce) {
  .nav.open,
  .sub,
  .sub a,
  .nav > a,
  .nav .nav-item > a,
  .cart-drawer {
    animation: none;
    transition: none;
  }
}