:root {
  --ink: #f4f7ef;
  --muted: #a7b0a8;
  --void: #060807;
  --panel: rgba(13, 17, 14, 0.74);
  --panel-strong: rgba(20, 25, 21, 0.94);
  --line: rgba(205, 255, 214, 0.16);
  --green: #7cff8f;
  --mint: #43f1c7;
  --amber: #ffc24a;
  --coral: #ff6c55;
  --white: #ffffff;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 10% 0%, rgba(124, 255, 143, 0.15), transparent 28rem),
    radial-gradient(circle at 86% 18%, rgba(255, 194, 74, 0.13), transparent 26rem),
    linear-gradient(135deg, #050706 0%, #11130f 42%, #070908 100%);
  overflow-x: hidden;
}

body.drawer-open { overflow: hidden; }

body::before {
  content: "";
  position: fixed;
  inset: 74px 0 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.11;
  background-image: url("/assets/patterns/pet-breed-lineart-cute-ai-transparent.png");
  background-position: center 92px;
  background-size: clamp(1120px, 86vw, 1360px) auto;
  background-repeat: no-repeat;
  mask-image: linear-gradient(to bottom, transparent 0, black 12%, black 76%, transparent 100%);
}

button, input, textarea, select { font: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.ambient-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(124, 255, 143, 0.07) 1px, transparent 1px),
    linear-gradient(rgba(124, 255, 143, 0.06) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

.ambient-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0 42%, rgba(67, 241, 199, 0.1) 50%, transparent 58% 100%);
  animation: sweep 9s linear infinite;
}

.cursor-light {
  position: fixed;
  width: 360px;
  height: 360px;
  z-index: 0;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(124, 255, 143, 0.16), transparent 68%);
  transform: translate(-50%, -50%);
  mix-blend-mode: screen;
}

@keyframes sweep {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  min-height: 74px;
  padding: 14px clamp(18px, 4vw, 54px);
  display: flex;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(6, 8, 7, 0.72);
  backdrop-filter: blur(18px) saturate(150%);
}

.brand-mark {
  min-width: 132px;
  display: grid;
  gap: 2px;
  justify-items: start;
  line-height: 1;
}

.brand-mark span {
  display: block;
  font-weight: 900;
  font-size: 1.04rem;
}

.brand-mark strong,
.eyebrow,
.floating-badge strong {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
}

.brand-mark strong {
  display: block;
  padding-left: 1px;
  color: var(--green);
  font-size: 0.82rem;
}

.site-nav {
  margin-left: auto;
  display: flex;
  gap: clamp(12px, 2.4vw, 30px);
  align-items: center;
}

.site-nav a,
.admin-link {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.site-nav a:hover,
.admin-link:hover {
  color: var(--green);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-button,
.admin-link {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-button {
  cursor: pointer;
  color: var(--green);
  font-weight: 900;
}

main {
  position: relative;
  z-index: 1;
}

.hero-section,
.split-section,
.proof-section,
.products-section,
.global-section,
.answer-section,
.resources-section,
.contact-section {
  width: min(1380px, calc(100% - 36px));
  margin: 0 auto;
  scroll-margin-top: 104px;
}

.hero-section {
  position: relative;
  min-height: clamp(680px, calc(100vh - 74px), 860px);
  padding: clamp(42px, 5vw, 72px) 0 clamp(34px, 4vw, 56px);
  display: grid;
  grid-template-columns: minmax(460px, 0.78fr) minmax(560px, 1.22fr);
  gap: clamp(34px, 4.2vw, 86px);
  align-items: center;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 -12vw;
  z-index: 5;
  width: min(760px, 54vw);
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(4, 7, 6, 0.97) 0%, rgba(4, 8, 7, 0.88) 42%, rgba(4, 8, 7, 0.48) 72%, transparent 100%),
    radial-gradient(ellipse at 42% 48%, rgba(8, 29, 31, 0.64), transparent 64%);
}

.hero-section::after {
  content: "";
  position: absolute;
  inset: auto -6vw 0 -6vw;
  z-index: 5;
  height: 28%;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, rgba(5, 8, 7, 0.76) 58%, rgba(5, 8, 7, 0.96));
}

.hero-copy {
  position: relative;
  z-index: 6;
  max-width: 650px;
  padding-left: clamp(0px, 1.2vw, 18px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin-bottom: 24px;
  font-size: clamp(3rem, 6.6vw, 7rem);
  line-height: 0.96;
  letter-spacing: 0;
  text-wrap: balance;
  text-shadow: 0 6px 26px rgba(0, 0, 0, 0.52);
}

h1 span {
  display: block;
  white-space: nowrap;
}

.lang-en .hero-copy h1 {
  max-width: 650px;
  font-size: clamp(3rem, 3.35vw, 4rem);
  line-height: 1.05;
}

.hero-title-zh {
  max-width: 720px;
  font-size: clamp(4rem, 6.4vw, 6.9rem);
  line-height: 1.02;
}

.hero-title-zh span {
  display: block;
  white-space: nowrap;
}

h2 {
  margin-bottom: 18px;
  max-width: 980px;
  font-size: clamp(2rem, 4.1vw, 4.45rem);
  line-height: 1.06;
  letter-spacing: 0;
  text-wrap: balance;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
  line-height: 1.28;
  text-wrap: balance;
}

.hero-lede {
  max-width: 560px;
  color: rgba(230, 238, 226, 0.8);
  font-size: clamp(1.03rem, 1.5vw, 1.25rem);
  line-height: 1.9;
  text-wrap: pretty;
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.7);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 0;
  width: auto;
  max-width: 100%;
  justify-content: flex-start;
}

.primary-button,
.ghost-button,
.inquiry-form button,
.newsletter-form button,
.filter-row button {
  min-height: 48px;
  border-radius: 8px;
  padding: 0 20px;
  border: 1px solid transparent;
  font-weight: 900;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1.2;
}

.primary-button,
.inquiry-form button,
.newsletter-form button {
  color: #051008;
  background: linear-gradient(135deg, var(--green), var(--mint));
  box-shadow: 0 0 34px rgba(124, 255, 143, 0.22);
}

.ghost-button {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.hero-stage {
  position: relative;
  z-index: 2;
  min-height: clamp(500px, 50vw, 680px);
  display: grid;
  place-items: center end;
  margin-right: 0;
  margin-top: clamp(-52px, -4.4vw, -22px);
  overflow: hidden;
}

.hero-stage::before {
  content: "";
  position: absolute;
  width: 82%;
  height: 34%;
  left: 9%;
  bottom: 7%;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(124, 255, 143, 0.22), rgba(67, 241, 199, 0.06) 38%, transparent 72%);
  filter: blur(18px);
}

.hero-stage::after {
  content: "";
  position: absolute;
  width: 76%;
  height: 1px;
  left: 12%;
  bottom: 17%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.hero-picture {
  position: relative;
  z-index: 4;
  width: min(100%, 860px);
  max-width: 100%;
  aspect-ratio: 65 / 42;
  display: block;
}

.hero-poster {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 68% center;
  border-radius: 0;
  -webkit-mask-image: radial-gradient(ellipse at 70% 52%, black 0 43%, rgba(0, 0, 0, 0.82) 57%, rgba(0, 0, 0, 0.35) 68%, transparent 82%);
  mask-image: radial-gradient(ellipse at 70% 52%, black 0 43%, rgba(0, 0, 0, 0.82) 57%, rgba(0, 0, 0, 0.35) 68%, transparent 82%);
  transform: none;
  filter: drop-shadow(0 34px 42px rgba(0, 0, 0, 0.48)) drop-shadow(0 0 48px rgba(124, 255, 143, 0.08));
}

.hero-board {
  position: relative;
  z-index: 4;
  width: min(54%, 430px);
  max-height: 560px;
  object-fit: contain;
  border-radius: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  filter: drop-shadow(0 34px 34px rgba(0, 0, 0, 0.5)) drop-shadow(0 0 42px rgba(124, 255, 143, 0.1));
  transform: translateY(10px);
}

.hero-product {
  position: absolute;
  z-index: 3;
  width: min(24vw, 260px);
  max-height: 430px;
  object-fit: contain;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  filter: drop-shadow(0 26px 24px rgba(0, 0, 0, 0.5)) drop-shadow(0 0 34px rgba(124, 255, 143, 0.08));
  opacity: 0.9;
  animation: float 5.6s ease-in-out infinite;
}

.product-a {
  left: 8%;
  bottom: 17%;
  transform: rotate(-7deg);
}

.product-b {
  right: 8%;
  bottom: 16%;
  transform: rotate(7deg);
  animation-delay: -2.4s;
}

.orbital-ring {
  position: absolute;
  border: 1px solid rgba(124, 255, 143, 0.26);
  border-radius: 50%;
  transform: rotateX(68deg) rotateZ(18deg);
}

.ring-one {
  width: 84%;
  aspect-ratio: 1;
  animation: rotate 18s linear infinite;
}

.ring-two {
  width: 62%;
  aspect-ratio: 1;
  border-color: rgba(255, 194, 74, 0.22);
  animation: rotate 12s linear infinite reverse;
}

@keyframes rotate {
  to { transform: rotateX(68deg) rotateZ(378deg); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-18px); }
}

.floating-badge {
  position: absolute;
  z-index: 5;
  right: clamp(20px, 6%, 70px);
  bottom: clamp(44px, 11%, 84px);
  min-width: 178px;
  min-height: 92px;
  border-radius: 8px;
  border: 1px solid rgba(255, 194, 74, 0.36);
  display: grid;
  align-content: center;
  gap: 2px;
  text-align: center;
  color: var(--ink);
  background: linear-gradient(135deg, rgba(255, 194, 74, 0.2), rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(18px);
  box-shadow: 0 0 60px rgba(255, 194, 74, 0.16);
}

.floating-badge strong { font-size: 2.1rem; }
.floating-badge span { font-weight: 900; }

@keyframes posterFloat {
  0%, 100% { transform: translateY(0) rotateX(0deg); }
  50% { transform: translateY(-10px) rotateX(1.5deg); }
}

.ticker {
  overflow: hidden;
  border-block: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: clamp(24px, 3vw, 44px);
  min-height: 64px;
  padding: 12px 0;
  background: rgba(124, 255, 143, 0.08);
}

.ticker span {
  flex: 0 0 auto;
  color: var(--ink);
  font-weight: 900;
  font-size: clamp(1.05rem, 1.55vw, 1.6rem);
  line-height: 1.2;
  white-space: nowrap;
  animation: ticker 18s linear infinite;
}

@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-520px); }
}

.split-section,
.products-section,
.global-section,
.answer-section,
.resources-section,
.contact-section {
  padding: 112px 0;
}

@media (min-width: 1500px) {
  .hero-section,
  .split-section,
  .proof-section,
  .products-section,
  .global-section,
  .answer-section,
  .resources-section,
  .contact-section {
    width: min(1420px, calc(100% - 72px));
  }

  .hero-section {
    grid-template-columns: minmax(480px, 0.78fr) minmax(620px, 1.22fr);
  }
}

@media (max-width: 1280px) {
  .hero-section {
    grid-template-columns: minmax(390px, 0.82fr) minmax(420px, 1.18fr);
    min-height: clamp(640px, calc(100vh - 74px), 780px);
  }

  .lang-en .hero-copy h1 {
    font-size: clamp(2.65rem, 3.6vw, 3.55rem);
    max-width: 560px;
  }

  .hero-title-zh {
    font-size: clamp(3.55rem, 6.2vw, 5.7rem);
  }

  .hero-stage {
    min-height: clamp(480px, 48vw, 620px);
  }

  .hero-picture {
    width: min(96%, 760px);
  }

  .hero-poster {
    object-position: 70% center;
  }
}

.split-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
  gap: 44px;
}

#research {
  position: relative;
  width: min(1380px, calc(100% - 36px));
  max-width: none;
  min-height: 0;
  margin: 0 auto;
  padding: 112px 0;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
  align-items: start;
  gap: 44px;
  overflow: visible;
  background: transparent;
  border: 0;
}

#research::before {
  display: none;
}

#research::after {
  display: none;
}

#research > * {
  position: relative;
  z-index: 1;
}

#research .eyebrow {
  margin-bottom: 22px;
  color: var(--green);
  font-size: clamp(0.78rem, 0.9vw, 0.96rem);
  text-shadow: 0 0 18px rgba(124, 255, 143, 0.42);
}

#research h2 {
  max-width: 980px;
  margin-bottom: 18px;
  text-shadow: 0 8px 34px rgba(0, 0, 0, 0.72);
}

.research-grid,
.commerce-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.research-grid article,
.commerce-grid article,
.answer-grid article,
.product-card,
.inquiry-form,
.newsletter-form,
.resource-grid a {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035));
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(14px);
}

.research-grid article,
.commerce-grid article,
.answer-grid article {
  min-height: 216px;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.research-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(118px, 0.58fr);
  align-items: center;
  gap: 14px;
  isolation: isolate;
  cursor: default;
  outline: none;
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

#research .research-grid {
  gap: 16px;
}

#research .research-grid article {
  min-height: 216px;
  padding: 24px;
  border-color: rgba(214, 232, 217, 0.16);
  background:
    radial-gradient(circle at 74% 48%, rgba(124, 255, 143, 0.12), transparent 38%),
    linear-gradient(135deg, rgba(24, 30, 26, 0.88), rgba(11, 15, 12, 0.74));
  box-shadow:
    0 28px 72px rgba(0, 0, 0, 0.38),
    0 1px 0 rgba(255, 255, 255, 0.08) inset;
  backdrop-filter: blur(18px) saturate(130%);
}

#research .research-grid article::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.08), transparent 36%, rgba(124, 255, 143, 0.06));
  opacity: 0.42;
  pointer-events: none;
}

.research-card:focus,
.research-card:focus-visible,
.research-card.is-active,
.research-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 255, 143, 0.56);
  background:
    radial-gradient(circle at 76% 48%, rgba(124, 255, 143, 0.18), transparent 42%),
    linear-gradient(135deg, rgba(29, 36, 31, 0.92), rgba(12, 17, 13, 0.8));
  box-shadow:
    0 30px 78px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(124, 255, 143, 0.12) inset,
    0 0 42px rgba(124, 255, 143, 0.12);
}

.research-visual {
  position: relative;
  z-index: 1;
  width: min(100%, 152px);
  min-height: 132px;
  justify-self: end;
  margin: -4px 0 -4px 0;
  border-radius: 8px;
  border: 0;
  background: radial-gradient(ellipse at 58% 50%, rgba(124, 255, 143, 0.12), transparent 68%);
  overflow: hidden;
}

.research-visual::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: auto 6px 0 auto;
  width: 54px;
  height: 2px;
  background: var(--health-color, var(--green));
  box-shadow: 0 0 18px var(--health-shadow, rgba(124, 255, 143, 0.5));
  pointer-events: none;
}

.research-visual img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 142px;
  object-fit: contain;
  object-position: center right;
  -webkit-mask-image:
    linear-gradient(90deg, transparent 0, #000 14%, #000 88%, transparent 100%),
    linear-gradient(180deg, transparent 0, #000 12%, #000 88%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(90deg, transparent 0, #000 14%, #000 88%, transparent 100%),
    linear-gradient(180deg, transparent 0, #000 12%, #000 88%, transparent 100%);
  mask-composite: intersect;
}

.research-visual svg {
  display: none;
}

.research-copy {
  position: relative;
  z-index: 2;
}

#research .research-copy span {
  display: block;
  margin-bottom: 4px;
  color: var(--amber);
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: clamp(1.06rem, 1.12vw, 1.34rem);
  line-height: 1;
  text-shadow: 0 0 12px rgba(255, 194, 74, 0.24);
}

#research .research-copy h3 {
  margin-bottom: 18px;
  color: var(--white);
  font-size: clamp(1.4rem, 1.55vw, 1.95rem);
  font-weight: 900;
}

#research .research-copy p {
  max-width: 22em;
  margin: 0;
  color: rgba(230, 238, 226, 0.78);
  font-size: clamp(0.98rem, 1.08vw, 1.18rem);
  line-height: 1.85;
}

.research-icon {
  width: 100%;
  height: 100%;
  min-height: 132px;
  opacity: 0.9;
  filter: drop-shadow(0 0 12px var(--health-shadow, rgba(124, 255, 143, 0.48)));
  transition: opacity 180ms ease, transform 180ms ease, filter 180ms ease;
}

.research-card:focus .research-icon,
.research-card:focus-visible .research-icon,
.research-card.is-active .research-icon,
.research-card:hover .research-icon {
  opacity: 1;
  transform: translateY(-2px) scale(1.03);
  filter: drop-shadow(0 0 18px var(--health-shadow, rgba(124, 255, 143, 0.56)));
}

.pet-body {
  fill: rgba(255, 255, 255, 0.07);
  stroke: rgba(230, 238, 226, 0.32);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.pet-line {
  fill: none;
  stroke: rgba(230, 238, 226, 0.42);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.cat {
  opacity: 0.42;
  transform-origin: 110px 75px;
  transform: translateX(-4px);
}

.dog {
  opacity: 0.78;
}

.health-target,
.micro-dot,
.tooth,
.spark,
.shield-line,
.immune-cell,
.drop {
  fill: none;
  stroke: var(--health-color, var(--green));
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 10px rgba(124, 255, 143, 0.14));
  opacity: 0.78;
  transform-origin: 110px 78px;
  transition: opacity 180ms ease, transform 180ms ease, filter 180ms ease;
}

.micro-dot,
.immune-cell {
  fill: var(--health-color, var(--green));
  stroke: none;
}

.tooth,
.shield,
.drop {
  fill: rgba(255, 255, 255, 0.05);
}

.research-card[data-health="gut"] {
  --health-color: #7cff8f;
  --health-shadow: rgba(124, 255, 143, 0.48);
}

.research-card[data-health="oral"] {
  --health-color: #9cff82;
  --health-shadow: rgba(156, 255, 130, 0.46);
}

.research-card[data-health="immune"] {
  --health-color: #9cff82;
  --health-shadow: rgba(156, 255, 130, 0.46);
}

.research-card[data-health="coat"] {
  --health-color: #9cff82;
  --health-shadow: rgba(156, 255, 130, 0.46);
}

.research-card:focus .health-target,
.research-card:focus .micro-dot,
.research-card:focus .tooth,
.research-card:focus .spark,
.research-card:focus .shield-line,
.research-card:focus .immune-cell,
.research-card:focus .drop,
.research-card:focus-visible .health-target,
.research-card:focus-visible .micro-dot,
.research-card:focus-visible .tooth,
.research-card:focus-visible .spark,
.research-card:focus-visible .shield-line,
.research-card:focus-visible .immune-cell,
.research-card:focus-visible .drop,
.research-card.is-active .health-target,
.research-card.is-active .micro-dot,
.research-card.is-active .tooth,
.research-card.is-active .spark,
.research-card.is-active .shield-line,
.research-card.is-active .immune-cell,
.research-card.is-active .drop,
.research-card:hover .health-target,
.research-card:hover .micro-dot,
.research-card:hover .tooth,
.research-card:hover .spark,
.research-card:hover .shield-line,
.research-card:hover .immune-cell,
.research-card:hover .drop {
  opacity: 1;
  transform: scale(1.06);
  filter: drop-shadow(0 0 14px var(--health-shadow, rgba(124, 255, 143, 0.48)));
}

.research-card:focus .pet-body,
.research-card:focus-visible .pet-body,
.research-card.is-active .pet-body,
.research-card:hover .pet-body {
  stroke: rgba(244, 247, 239, 0.58);
}

.research-grid article::after,
.commerce-grid article::after,
.answer-grid article::after {
  content: "";
  position: absolute;
  inset: auto 18px 18px auto;
  width: 46px;
  height: 2px;
  background: var(--green);
  box-shadow: 0 0 18px var(--green);
}

.research-grid span {
  color: var(--amber);
  font-weight: 900;
}

.research-grid p,
.commerce-grid p,
.answer-grid p,
.proof-copy p,
.product-card p,
.contact-section p {
  color: var(--muted);
  line-height: 1.8;
  text-wrap: pretty;
}

.answer-grid h3 {
  color: var(--green);
}

.proof-section {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 34px;
  align-items: stretch;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.proof-section > img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.proof-carousel {
  height: clamp(390px, 32vw, 500px);
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.carousel-track {
  height: 100%;
  display: flex;
  align-items: stretch;
  gap: 18px;
  padding: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: rgba(116, 255, 150, 0.45) rgba(255, 255, 255, 0.08);
  scroll-behavior: smooth;
}

.carousel-track::-webkit-scrollbar,
.global-track::-webkit-scrollbar {
  height: 8px;
}

.carousel-track::-webkit-scrollbar-track,
.global-track::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
}

.carousel-track::-webkit-scrollbar-thumb,
.global-track::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, rgba(92, 255, 145, 0.42), rgba(130, 203, 255, 0.38));
  border-radius: 999px;
}

.carousel-track img {
  width: min(760px, 84vw);
  height: 100%;
  min-height: 0;
  aspect-ratio: 16 / 9;
  flex: 0 0 auto;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.25);
  scroll-snap-align: center;
}

.proof-copy {
  display: grid;
  align-content: center;
  padding: 18px;
}

.section-heading {
  max-width: 880px;
  margin-bottom: 34px;
}

.filter-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

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

.filter-row button {
  min-height: 42px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--line);
}

.filter-row button.active {
  color: #051008;
  background: var(--green);
  border-color: var(--green);
}

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

.product-card {
  overflow: hidden;
  display: grid;
  grid-template-rows: 250px auto;
  min-height: 590px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(124, 255, 143, 0.48);
}

.product-visual {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 76% 18%, rgba(124, 255, 143, 0.18), transparent 30%),
    linear-gradient(145deg, rgba(247, 247, 241, 0.96), rgba(218, 230, 214, 0.9));
}

.product-visual::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(5, 16, 8, 0.08);
  border-radius: 8px;
  background:
    linear-gradient(rgba(5, 16, 8, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(5, 16, 8, 0.045) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
  z-index: 0;
}

.product-card:hover .product-visual::before {
  border-color: rgba(5, 16, 8, 0.18);
}

.product-card img {
  position: relative;
  z-index: 1;
  width: auto;
  max-width: 84%;
  height: 205px;
  max-height: calc(100% - 54px);
  object-fit: contain;
  padding: 0;
  margin-top: 36px;
  filter: drop-shadow(0 22px 26px rgba(5, 16, 8, 0.22));
  transition: transform 0.45s ease, filter 0.45s ease;
}

.product-card img[src*="/assets/manual-products/"] {
  object-fit: contain;
  background: transparent;
}

.product-card-art {
  grid-template-rows: auto auto;
  min-height: 650px;
}

.product-card-art .product-visual {
  aspect-ratio: 4 / 3;
  background: #f7f7f1;
}

.product-card-art .product-visual::before,
.product-card-art .product-visual-label {
  display: none;
}

.product-card-art img,
.product-card-art img[src*="/assets/manual-products/"] {
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  margin: 0;
  object-fit: cover;
  filter: none;
}

.product-card:hover img {
  transform: scale(1.045);
  filter: drop-shadow(0 26px 30px rgba(5, 16, 8, 0.28)) saturate(1.04) contrast(1.02);
}

.product-card-art:hover img {
  transform: scale(1.02);
  filter: saturate(1.03) contrast(1.01);
}

.product-card-body {
  padding: 22px;
  display: grid;
  align-content: start;
}

.product-visual-label {
  position: absolute;
  top: 18px;
  left: 18px;
  right: 18px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: #07100b;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.product-visual-label strong {
  min-width: 36px;
  padding: 6px 9px;
  border-radius: 8px;
  color: #051008;
  background: rgba(124, 255, 143, 0.72);
  text-align: center;
}

.product-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 900;
}

.product-card h3 { font-size: 1.28rem; }

.product-card h3,
.product-card p {
  overflow-wrap: anywhere;
}

.product-card p {
  color: rgba(238, 245, 235, 0.74);
  line-height: 1.65;
}

.product-nutrition {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  margin-top: 16px;
}

.product-nutrition span {
  min-width: 0;
  padding: 8px 6px;
  border: 1px solid rgba(124, 255, 143, 0.18);
  border-radius: 8px;
  background: rgba(124, 255, 143, 0.06);
  text-align: center;
}

.product-nutrition small,
.product-nutrition strong {
  display: block;
}

.product-nutrition small {
  margin-bottom: 4px;
  color: rgba(238, 245, 235, 0.58);
  font-size: 0.66rem;
  line-height: 1.1;
}

.product-nutrition strong {
  color: var(--green);
  font-size: 0.92rem;
  line-height: 1;
}

.product-commercial-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.product-commercial-tags span {
  max-width: 100%;
  padding: 7px 10px;
  border: 1px solid rgba(124, 255, 143, 0.25);
  border-radius: 8px;
  color: rgba(238, 245, 235, 0.86);
  background: rgba(124, 255, 143, 0.07);
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.product-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.product-actions button {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.07);
  font-weight: 900;
  cursor: pointer;
}

.product-actions button:first-child {
  color: #051008;
  background: var(--green);
}

.product-more-card {
  min-height: 650px;
  grid-template-rows: auto auto;
  border-color: rgba(124, 255, 143, 0.34);
  background:
    radial-gradient(circle at 70% 16%, rgba(124, 255, 143, 0.18), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.034));
}

.product-more-visual {
  position: relative;
  aspect-ratio: 4 / 3;
  min-height: 0;
  overflow: hidden;
  border-bottom: 1px solid rgba(124, 255, 143, 0.16);
  background:
    radial-gradient(circle at 50% 42%, rgba(124, 255, 143, 0.2), transparent 42%),
    #06140c;
}

.product-more-visual img,
.product-more-visual img[src*="/assets/manual-products/"] {
  width: 100%;
  height: 100%;
  display: block;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 32px;
  object-fit: contain;
  box-sizing: border-box;
  filter: none;
}

.product-more-card:hover .product-more-visual img {
  transform: scale(1.025);
  filter: saturate(1.05) contrast(1.03);
}

.more-grid-line {
  fill: none;
  stroke: rgba(124, 255, 143, 0.12);
  stroke-width: 1;
}

.more-hand-line,
.more-accent-line {
  fill: none;
  stroke: #7cff8f;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 8;
  filter: url("#handshake-glow");
}

.more-hand-line.thin {
  stroke-width: 5;
}

.more-accent-line {
  stroke: #42f0c8;
  stroke-width: 4;
}

.more-dot {
  fill: #7cff8f;
  filter: url("#handshake-glow");
}

.product-more-inner {
  min-height: 100%;
  padding: 28px;
  display: grid;
  align-content: start;
  gap: 14px;
}

.product-more-inner h3 {
  margin: 0;
  font-size: clamp(1.34rem, 1.7vw, 1.72rem);
  line-height: 1.32;
}

.product-more-inner p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.product-more-inner .primary-button {
  width: fit-content;
  margin-top: 10px;
}

.global-section { padding-top: 34px; }

.global-showcase {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.05fr);
  gap: 18px;
  align-items: stretch;
}

.lab-visual,
.global-carousel {
  position: relative;
  height: clamp(390px, 32vw, 500px);
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.lab-visual img {
  width: 100%;
  height: 100%;
  min-height: 500px;
  object-fit: cover;
  opacity: 0.88;
}

.global-track {
  height: 100%;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(560px, 88%);
  gap: 16px;
  padding: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: rgba(116, 255, 150, 0.45) rgba(255, 255, 255, 0.08);
  scroll-behavior: smooth;
}

.global-track img {
  width: 100%;
  height: 100%;
  min-height: 0;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
  scroll-snap-align: center;
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.24);
}

.scan-line {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent, rgba(124, 255, 143, 0.28), transparent);
  height: 34%;
  animation: scan 4s ease-in-out infinite;
}

@keyframes scan {
  0%, 100% { transform: translateY(-100%); }
  50% { transform: translateY(260%); }
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.resource-grid a {
  min-height: 136px;
  padding: 20px;
  display: grid;
  align-content: space-between;
}

.resource-grid span {
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  color: #051008;
  background: var(--amber);
  font-weight: 900;
}

.resource-grid strong {
  font-size: 1.1rem;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
  gap: 38px;
  align-items: start;
}

.social-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 28px 0 18px;
}

.social-row a {
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  color: var(--green);
  background: rgba(255, 255, 255, 0.06);
  font-weight: 900;
}

.newsletter-form {
  padding: 16px;
  display: grid;
  gap: 12px;
}

.newsletter-form label {
  display: grid;
  gap: 8px;
  font-weight: 900;
}

.newsletter-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.inquiry-form {
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.inquiry-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 900;
}

.inquiry-form fieldset {
  grid-column: 1 / -1;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 16px;
}

.inquiry-form legend {
  padding: 0 8px;
  color: var(--green);
  font-weight: 900;
}

.inquiry-form fieldset label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

.inquiry-form fieldset input {
  width: auto;
}

.inquiry-form label:last-of-type { grid-column: 1 / -1; }

.inquiry-form input,
.inquiry-form textarea,
.inquiry-form select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.inquiry-form input:focus,
.inquiry-form textarea:focus,
.inquiry-form select:focus,
.newsletter-form input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 4px rgba(124, 255, 143, 0.12);
}

.inquiry-form select option {
  color: #111317;
}

.inquiry-form button,
.form-status { grid-column: 1 / -1; }

.inquiry-selection {
  grid-column: 1 / -1;
  border: 1px solid rgba(124, 255, 143, 0.24);
  border-radius: 8px;
  padding: 14px;
  background: rgba(124, 255, 143, 0.06);
}

.selection-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.selection-head strong {
  color: var(--green);
  font-weight: 900;
}

.selection-head span {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
}

.selection-list {
  display: grid;
  gap: 8px;
}

.selection-list > p {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.selection-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.06);
}

.selection-item strong,
.selection-item span {
  display: block;
}

.selection-item strong {
  color: var(--ink);
  font-size: 0.98rem;
}

.selection-item span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.selection-item button {
  grid-column: auto;
  min-height: 34px;
  padding: 0 12px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.product-actions button[aria-pressed="true"] {
  border-color: rgba(124, 255, 143, 0.62);
  color: #07100b;
  background: var(--green);
}

.turnstile-slot {
  grid-column: 1 / -1;
  min-height: 70px;
}

.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--green);
  font-weight: 800;
}

.drawer {
  position: fixed;
  inset: 0;
  z-index: 40;
  pointer-events: none;
  background: rgba(0, 0, 0, 0);
  transition: background 0.22s ease;
}

.drawer[aria-hidden="false"] {
  pointer-events: auto;
  background: rgba(0, 0, 0, 0.6);
}

.drawer-panel {
  width: min(560px, 100%);
  height: 100%;
  margin-left: auto;
  padding: 22px;
  overflow: auto;
  color: var(--ink);
  background: #090c0a;
  border-left: 1px solid var(--line);
  transform: translateX(100%);
  transition: transform 0.22s ease;
}

.drawer[aria-hidden="false"] .drawer-panel { transform: translateX(0); }

.drawer-close {
  width: 42px;
  height: 42px;
  margin-left: auto;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  font-size: 1.6rem;
}

.drawer-panel img {
  width: 100%;
  height: 330px;
  margin: 18px 0;
  object-fit: cover;
  border-radius: 8px;
  background: #07100b;
}

.drawer-panel img[src*="/assets/manual-products/"] {
  object-fit: contain;
  background: #f7f7f1;
}

.drawer-panel dl {
  display: grid;
  gap: 10px;
  margin: 24px 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
}

.drawer-panel dt {
  color: var(--green);
  font-weight: 900;
}

.drawer-panel dd {
  margin: 0 0 8px;
  color: var(--muted);
  line-height: 1.62;
}

.cart-pill {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
}

.cart-pill[hidden] {
  display: none;
}

.cart-pill span {
  min-width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #08100a;
  background: var(--coral);
  font-weight: 900;
}

.cart-pill button,
.cart-pill a {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  font-weight: 900;
}

@media (max-width: 1020px) {
  .site-header {
    align-items: center;
    flex-wrap: wrap;
    gap: 12px 18px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    margin-left: 0;
    padding-bottom: 4px;
  }

  .split-section,
  .proof-section,
  .global-showcase,
  .contact-section {
    grid-template-columns: 1fr;
  }

  #research {
    min-height: auto;
    padding: 54px 0;
    grid-template-columns: 1fr;
    gap: 34px;
  }

  #research h2 {
    max-width: 820px;
  }

  #research .research-grid {
    max-width: 920px;
  }

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

  .hero-section {
    grid-template-columns: 1fr;
    min-height: clamp(640px, calc(100svh - 96px), 780px);
    position: relative;
    overflow: hidden;
  }

  .hero-copy {
    position: relative;
    z-index: 7;
  }

  .hero-stage {
    position: absolute;
    z-index: 1;
    right: -36px;
    bottom: 0;
    width: min(78vw, 560px);
    min-height: min(54vw, 430px);
    margin: 0;
    opacity: 0.46;
    pointer-events: none;
  }

  .hero-poster {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 72% center;
  }

  .hero-product {
    width: 180px;
  }

  .floating-badge {
    min-width: 136px;
    min-height: 72px;
  }

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

@media (max-width: 660px) {
  .site-header {
    min-height: 98px;
    padding: 14px 18px 12px;
    gap: 12px 16px;
  }

  .site-header .brand-mark {
    order: 1;
  }

  .brand-mark {
    min-width: 108px;
  }

  .brand-mark span {
    font-size: 1rem;
  }

  .header-actions {
    order: 2;
    margin-left: auto;
  }

  .icon-button {
    min-height: 44px;
    padding: 0 16px;
  }

  .site-nav {
    order: 3;
    min-width: 0;
    gap: 18px;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a {
    flex: 0 0 auto;
    font-size: 0.82rem;
    white-space: nowrap;
  }

  .hero-section,
  .split-section,
  .products-section,
  .global-section,
  .answer-section,
  .resources-section,
  .contact-section {
    width: min(100% - 24px, 1380px);
    padding: 54px 0;
    scroll-margin-top: 124px;
  }

  .proof-section {
    width: min(100% - 24px, 1380px);
    padding: 14px;
    scroll-margin-top: 124px;
  }

  .proof-carousel {
    height: clamp(230px, 62vw, 330px);
  }

  .global-carousel {
    height: clamp(230px, 62vw, 330px);
  }

  .global-track {
    grid-auto-columns: minmax(300px, 88%);
  }

  h1 { font-size: clamp(2.45rem, 15vw, 4.5rem); }
  .hero-title-zh {
    font-size: clamp(2.18rem, 10.8vw, 2.85rem);
    line-height: 1.08;
  }

  .hero-section {
    min-height: auto;
    padding-top: 34px;
    padding-bottom: 0;
    align-content: start;
  }

  .hero-copy {
    max-width: 100%;
    padding-left: 0;
    padding-right: 0;
  }

  .hero-lede {
    max-width: min(100%, 24rem);
    font-size: 0.95rem;
    line-height: 1.58;
  }

  .hero-actions {
    margin-top: 18px;
    gap: 10px;
  }

  .primary-button,
  .ghost-button,
  .inquiry-form button,
  .newsletter-form button,
  .filter-row button {
    min-height: 44px;
    padding: 0 16px;
  }

  .hero-stage {
    position: relative;
    inset: auto;
    width: 100%;
    height: auto;
    min-height: 0;
    margin-top: 16px;
    opacity: 1;
    overflow: hidden;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background:
      radial-gradient(ellipse at 62% 28%, rgba(124, 255, 143, 0.14), transparent 46%),
      #060806;
  }

  .hero-stage::before {
    display: none;
  }

  .hero-stage::after {
    display: none;
  }

  .hero-picture {
    position: relative;
    inset: auto;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 10.8;
    display: block;
  }

  .hero-poster {
    position: relative;
    inset: auto;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 55% 49%;
    transform: none;
    transform-origin: center center;
    -webkit-mask-image: none;
    mask-image: none;
    filter: brightness(1.22) contrast(1.04) saturate(1.08);
  }
  .hero-board { width: 88%; }
  .hero-product { width: 135px; }
  .floating-badge {
    display: none;
    min-width: 108px;
    min-height: 58px;
    right: 8%;
    bottom: 10%;
  }
  .floating-badge strong { font-size: 1.5rem; }

  .lang-en .hero-copy h1 {
    font-size: clamp(2.16rem, 11.4vw, 2.95rem);
    line-height: 1.05;
    max-width: 100%;
  }

  .lang-en .hero-copy h1 span {
    white-space: normal;
  }

  .lang-en .hero-lede {
    font-size: 0.95rem;
    line-height: 1.55;
  }

  .lang-en .hero-actions a {
    flex: 1 1 100%;
    justify-content: center;
  }

  .filter-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: none;
  }

  .filter-row::-webkit-scrollbar {
    display: none;
  }

  .filter-row button {
    flex: 0 0 auto;
    min-height: 44px;
    padding: 0 16px;
  }

  .research-grid,
  .commerce-grid,
  .answer-grid,
  .product-grid,
  .resource-grid,
  .inquiry-form { grid-template-columns: 1fr; }

  #research {
    width: min(100% - 24px, 1380px);
    padding: 54px 0;
  }

  #research::after {
    background-size: 980px auto;
    opacity: 0.12;
  }

  #research h2 {
    max-width: 100%;
  }

  #research .research-grid {
    gap: 16px;
  }

  .research-card {
    grid-template-columns: minmax(0, 1fr) minmax(96px, 0.42fr);
    min-height: 216px;
  }

  #research .research-grid article {
    min-height: 216px;
    padding: 20px;
  }

  #research .research-copy h3 {
    margin-bottom: 12px;
    font-size: 1.35rem;
  }

  #research .research-copy p {
    font-size: 0.95rem;
    line-height: 1.72;
  }

  .research-visual,
  .research-icon {
    min-height: 116px;
  }

  .research-visual {
    width: min(100%, 124px);
  }

  .research-visual img {
    max-height: 124px;
  }

  .inquiry-form label:last-of-type,
  .inquiry-form fieldset,
  .inquiry-form button,
  .form-status { grid-column: auto; }

  .inquiry-form fieldset {
    grid-template-columns: 1fr;
  }

  .selection-head,
  .selection-item {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .selection-head {
    display: grid;
  }

  .selection-item button {
    width: 100%;
  }

  .product-card {
    grid-template-rows: 220px auto;
  }

  .product-card-body {
    padding: 18px;
  }

  .product-card h3 {
    font-size: 1.18rem;
  }

  .product-actions {
    gap: 8px;
  }

  .product-actions button {
    min-height: 42px;
    padding: 0 12px;
  }

  .resource-grid {
    gap: 10px;
  }

  .resource-grid a {
    min-height: 104px;
    padding: 18px;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    align-content: center;
    gap: 14px;
  }

  .resource-grid span {
    padding: 8px 14px;
  }

  .resource-grid strong {
    font-size: 1rem;
    line-height: 1.25;
  }

  .contact-section {
    gap: 22px;
  }

  .inquiry-form {
    padding: 18px;
    gap: 14px;
  }

  .inquiry-form input,
  .inquiry-form textarea,
  .inquiry-form select {
    padding: 11px 12px;
    font-size: 0.98rem;
  }

  .inquiry-form fieldset {
    padding: 12px;
  }
}

@media (max-width: 420px) {
  .site-header {
    padding-inline: 12px;
  }

  .site-nav {
    gap: 14px;
  }

  .site-nav a {
    font-size: 0.78rem;
  }

  .hero-section,
  .split-section,
  .products-section,
  .global-section,
  .answer-section,
  .resources-section,
  .contact-section {
    width: min(100% - 20px, 1380px);
  }

  .hero-title-zh {
    font-size: clamp(2.08rem, 10.6vw, 2.65rem);
  }

  .hero-lede {
    font-size: 0.93rem;
    max-width: 100%;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions a {
    flex: 1 1 130px;
  }

  .hero-stage {
    height: auto;
    min-height: 0;
  }

  .hero-picture {
    aspect-ratio: 16 / 11.2;
  }

  .hero-poster {
    object-position: 55% 50%;
  }

  .floating-badge {
    transform: scale(0.86);
    transform-origin: right bottom;
  }
}

@media (min-width: 701px) {
  .product-card-art {
    grid-template-rows: auto auto;
    min-height: 650px;
  }
}

@media (max-width: 700px) {
  .product-card-art {
    grid-template-rows: auto auto;
    min-height: 620px;
  }
}