:root {
  --ink: #111114;
  --muted: #696a70;
  --soft: #f5f5f7;
  --line: #d9d9df;
  --panel: rgba(255, 255, 255, 0.78);
  --accent: #0071e3;
  --accent-dark: #0057b8;
  --green: #3c8f7c;
  --amber: #b88746;
  --radius: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  color: var(--ink);
  background: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 50% 0%, rgba(0, 113, 227, 0.08), transparent 34rem),
    linear-gradient(180deg, #ffffff 0%, #f7f7f9 42%, #ffffff 100%);
}

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

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
  padding: 0 32px;
  border-bottom: 1px solid rgba(217, 217, 223, 0.72);
  background: rgba(255, 255, 255, 0.74);
  backdrop-filter: blur(22px) saturate(180%);
}

.brand,
.header-actions,
.desktop-nav,
.hero-actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 650;
}

.brand-logo {
  display: block;
  width: 168px;
  height: 42px;
  object-fit: contain;
  object-position: left center;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: #ffffff;
  background: #1d1d1f;
  font-size: 12px;
  letter-spacing: 0;
}

.brand-text {
  white-space: nowrap;
}

.desktop-nav {
  gap: 26px;
  color: #303034;
  font-size: 14px;
}

.desktop-nav a {
  padding: 8px 0;
}

.desktop-nav a:hover {
  color: var(--accent);
}

.header-actions {
  gap: 10px;
}

.lang-toggle,
.header-cta,
.primary-btn,
.secondary-btn {
  min-height: 40px;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 0 18px;
  cursor: pointer;
}

.lang-toggle {
  background: #ffffff;
  border-color: var(--line);
  color: #252528;
}

.header-cta,
.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #ffffff;
  font-weight: 650;
}

.header-cta:hover,
.primary-btn:hover {
  background: var(--accent-dark);
}

.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.78);
  color: #1d1d1f;
  font-weight: 620;
}

.hero-carousel {
  position: relative;
  width: 100%;
  max-width: 100vw;
  min-height: min(760px, calc(100vh - 64px));
  overflow: hidden;
  background: #fbfbfd;
}

.carousel-track {
  position: relative;
  width: 100%;
  max-width: 100%;
  min-height: min(760px, calc(100vh - 64px));
  overflow: hidden;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  max-width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: clamp(30px, 6vw, 90px);
  align-items: center;
  min-height: min(760px, calc(100vh - 64px));
  padding: clamp(52px, 6vw, 86px) clamp(24px, 6vw, 88px) clamp(58px, 6vw, 78px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 680ms ease, visibility 680ms ease;
}

.carousel-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.76) 35%, rgba(255, 255, 255, 0.08) 70%);
}

.theme-dark::before {
  background: linear-gradient(90deg, rgba(5, 5, 6, 0.9) 0%, rgba(5, 5, 6, 0.68) 36%, rgba(5, 5, 6, 0.12) 72%);
}

.theme-soft::before {
  background: linear-gradient(90deg, rgba(255, 253, 250, 0.94) 0%, rgba(255, 253, 250, 0.74) 35%, rgba(255, 253, 250, 0.08) 70%);
}

.slide-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
}

.carousel-slide.active {
  opacity: 1;
  visibility: visible;
}

.theme-light {
  background:
    radial-gradient(circle at 72% 38%, rgba(0, 113, 227, 0.1), transparent 34rem),
    linear-gradient(180deg, #ffffff 0%, #f5f5f7 100%);
}

.theme-dark {
  color: #ffffff;
  background:
    radial-gradient(circle at 74% 44%, rgba(255, 255, 255, 0.17), transparent 27rem),
    linear-gradient(145deg, #050506 0%, #151518 45%, #050506 100%);
}

.theme-soft {
  background:
    radial-gradient(circle at 75% 38%, rgba(184, 135, 70, 0.18), transparent 30rem),
    linear-gradient(180deg, #fffdfa 0%, #f5f5f7 100%);
}

.slide-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
  max-width: 780px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 720;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(48px, 7vw, 88px);
  line-height: 0.98;
  font-weight: 760;
}

h2 {
  margin: 0;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.02;
  font-weight: 740;
}

.carousel-slide h2 {
  max-width: 780px;
  font-size: clamp(48px, 7vw, 88px);
  line-height: 0.98;
}

h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.hero-lede,
.section-heading p,
.inquiry-copy p,
.capability-item p,
.quality-grid p,
.product-card p {
  color: var(--muted);
  line-height: 1.68;
}

.hero-lede {
  margin: 26px 0 0;
  max-width: 650px;
  font-size: 20px;
}

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

.slide-art {
  position: relative;
  display: grid;
  min-height: min(58vw, 650px);
  place-items: center;
}

.stage-glasses {
  position: relative;
  width: min(92%, 680px);
  aspect-ratio: 1.54 / 1;
}

.stage-glasses::before,
.stage-glasses::after {
  content: "";
  position: absolute;
}

.stage-glasses::before {
  inset: 18% 8%;
  border: clamp(10px, 1.4vw, 18px) solid #171719;
  border-radius: 42% 42% 48% 48%;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.62), rgba(150, 185, 210, 0.18)),
    rgba(255, 255, 255, 0.26);
  clip-path: polygon(0 0, 43% 0, 47% 32%, 53% 32%, 57% 0, 100% 0, 100% 100%, 0 100%);
  box-shadow: 0 34px 80px rgba(31, 38, 50, 0.18), inset 0 0 0 1px rgba(255, 255, 255, 0.66);
}

.stage-glasses::after {
  left: 43%;
  top: 42%;
  width: 14%;
  height: 14%;
  border-top: clamp(8px, 1vw, 13px) solid #171719;
  border-radius: 50%;
}

.stage-glasses.dark::before {
  border-color: #f4f4f6;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.28), rgba(25, 25, 29, 0.76)),
    rgba(40, 42, 48, 0.64);
  box-shadow: 0 44px 100px rgba(0, 0, 0, 0.46), inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.stage-glasses.dark::after {
  border-color: #f4f4f6;
}

.art-optical::before,
.art-sun::before {
  content: "";
  position: absolute;
  width: 72%;
  height: 18%;
  bottom: 18%;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(0, 0, 0, 0.18), transparent 68%);
  filter: blur(10px);
}

.retail-preview-card {
  display: grid;
  gap: 14px;
  width: min(88%, 500px);
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid rgba(217, 217, 223, 0.8);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 36px 90px rgba(53, 46, 37, 0.16);
}

.retail-preview-card span {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #111114;
}

.retail-preview-card strong {
  font-size: clamp(34px, 5vw, 54px);
}

.retail-preview-card em {
  display: block;
  height: 18px;
  border-radius: 999px;
  background: #e7e7ec;
}

.retail-preview-card em:nth-of-type(2) {
  width: 78%;
}

.retail-preview-card em:nth-of-type(3) {
  width: 58%;
}

.carousel-controls {
  position: absolute;
  right: clamp(22px, 6vw, 88px);
  bottom: 28px;
  z-index: 5;
  display: flex;
  gap: 10px;
}

.carousel-dot {
  width: 42px;
  height: 4px;
  min-height: 4px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(120, 121, 128, 0.36);
}

.carousel-dot.active {
  background: var(--accent);
}

.hero-visual {
  position: relative;
  display: grid;
  min-height: min(58vw, 620px);
  place-items: center;
}

.glass-stage {
  position: relative;
  width: min(100%, 660px);
  aspect-ratio: 1.28 / 1;
  border: 1px solid rgba(217, 217, 223, 0.82);
  border-radius: 8px;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(238, 241, 246, 0.76)),
    radial-gradient(circle at 50% 10%, rgba(255, 255, 255, 0.9), transparent 42%);
  box-shadow: 0 34px 90px rgba(24, 31, 42, 0.16);
}

.glass-stage::before {
  content: "";
  position: absolute;
  inset: 9%;
  border-radius: 8px;
  background:
    linear-gradient(90deg, transparent 0 47%, rgba(0, 0, 0, 0.04) 47% 53%, transparent 53%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.5), transparent 36%);
}

.lens {
  position: absolute;
  top: 36%;
  width: 30%;
  height: 24%;
  border: 9px solid #202124;
  border-radius: 48% 44% 48% 44%;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.62), rgba(145, 178, 197, 0.22)),
    rgba(255, 255, 255, 0.22);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.75), 0 18px 32px rgba(20, 20, 22, 0.12);
}

.lens-left {
  left: 17%;
}

.lens-right {
  right: 17%;
  transform: scaleX(-1);
}

.bridge {
  position: absolute;
  top: 45%;
  left: 45.8%;
  width: 8.5%;
  height: 10%;
  border-top: 8px solid #202124;
  border-radius: 50%;
}

.temple {
  position: absolute;
  top: 41%;
  width: 25%;
  height: 8px;
  border-radius: 999px;
  background: #202124;
}

.temple-left {
  left: -1%;
  transform: rotate(-12deg);
}

.temple-right {
  right: -1%;
  transform: rotate(12deg);
}

.shine {
  position: absolute;
  inset: -35% auto auto -20%;
  width: 58%;
  height: 160%;
  transform: rotate(26deg);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.72), transparent);
  animation: sweep 7s ease-in-out infinite;
}

@keyframes sweep {
  0%,
  42% {
    translate: -120% 0;
  }
  70%,
  100% {
    translate: 220% 0;
  }
}

.hero-card {
  position: absolute;
  display: grid;
  gap: 4px;
  min-width: 160px;
  padding: 16px 18px;
  border: 1px solid rgba(217, 217, 223, 0.74);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 50px rgba(27, 31, 42, 0.12);
}

.hero-card span {
  color: var(--muted);
  font-size: 13px;
}

.hero-card strong {
  font-size: 22px;
}

.hero-card-top {
  top: 14%;
  right: 2%;
}

.hero-card-bottom {
  left: 1%;
  bottom: 12%;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 20px clamp(20px, 6vw, 88px) 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}

.metric-strip div {
  display: grid;
  gap: 8px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.72);
}

.metric-strip strong {
  font-size: 24px;
}

.metric-strip span {
  color: var(--muted);
}

.section {
  padding: clamp(58px, 8vw, 104px) clamp(24px, 6vw, 88px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 40px;
}

.section-heading.compact {
  margin-bottom: 0;
}

.section-heading p {
  max-width: 680px;
  font-size: 18px;
}

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

.home-category-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: -12px 0 28px;
}

.home-category {
  display: grid;
  gap: 18px;
  min-height: 240px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  overflow: hidden;
}

.home-category img {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  object-fit: cover;
}

.home-category span {
  color: var(--muted);
  font-size: 13px;
}

.home-category strong {
  align-self: end;
  font-size: 22px;
  line-height: 1.12;
}

.home-category:hover {
  border-color: rgba(0, 113, 227, 0.42);
  box-shadow: 0 18px 46px rgba(0, 113, 227, 0.08);
}

.product-card {
  min-height: 360px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.product-card:hover {
  border-color: rgba(0, 113, 227, 0.34);
  box-shadow: 0 18px 46px rgba(0, 113, 227, 0.08);
  transform: translateY(-2px);
}

.product-main-link {
  display: block;
  color: inherit;
}

.product-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  min-height: 24px;
  margin: -4px 0 10px;
}

.product-badges span {
  border-radius: 999px;
  padding: 4px 9px;
  background: rgba(0, 113, 227, 0.12);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

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

.product-card .product-meta span {
  border-radius: 999px;
  padding: 5px 10px;
  background: #f0f1f4;
  color: #4f5159;
  font-size: 12px;
}

.product-card.featured {
  border-color: rgba(0, 113, 227, 0.28);
  box-shadow: 0 20px 54px rgba(0, 113, 227, 0.08);
}

.process-section {
  padding-block: clamp(44px, 6vw, 80px);
  background: #ffffff;
}

.process-visual-wrap {
  width: 100%;
  overflow: hidden;
}

.process-visual {
  display: block;
  width: 100%;
  height: auto;
}

.process-visual-en {
  display: none;
}

html[lang="en"] .process-visual-zh {
  display: none;
}

html[lang="en"] .process-visual-en {
  display: block;
}

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

.process-grid article,
.factory-grid article,
.exhibition-list article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
}

.process-grid article {
  display: grid;
  gap: 12px;
  min-height: 230px;
  padding: 22px;
}

.process-grid span,
.exhibition-list span {
  color: var(--accent);
  font-size: 13px;
  font-weight: 720;
}

.process-grid p,
.factory-grid span,
.exhibition-list p {
  color: var(--muted);
  line-height: 1.65;
}

.factory-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(420px, 1.1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
  background: #101114;
  color: #ffffff;
}

.factory-copy p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.72;
  font-size: 18px;
}

.factory-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.factory-grid article {
  display: grid;
  gap: 10px;
  min-height: 160px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
}

.factory-grid strong {
  font-size: 24px;
}

.factory-grid span {
  color: rgba(255, 255, 255, 0.68);
}

.ai-section {
  background: #ffffff;
}

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

.ai-grid article {
  display: grid;
  gap: 12px;
  min-height: 250px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(0, 113, 227, 0.09), rgba(255, 255, 255, 0) 54%),
    #f7f8fa;
}

.ai-grid span {
  width: fit-content;
  border-radius: 999px;
  padding: 5px 10px;
  background: rgba(0, 113, 227, 0.12);
  color: var(--accent);
  font-size: 13px;
  font-weight: 720;
}

.ai-grid p {
  color: var(--muted);
  line-height: 1.65;
}

.exhibition-section {
  background: #f5f5f7;
}

.exhibition-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.exhibition-list article {
  padding: 24px;
}

.load-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}

.product-visual {
  position: relative;
  height: 190px;
  margin-bottom: 20px;
  border-radius: var(--radius);
  overflow: hidden;
  background: #f1f2f4;
}

.product-visual.has-image {
  background: #f5f5f7;
}

.product-visual.has-image::before,
.product-visual.has-image::after {
  display: none;
}

.product-visual.has-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-visual::before,
.product-visual::after {
  content: "";
  position: absolute;
  border-radius: 999px;
}

.product-visual::before {
  left: 16%;
  top: 42%;
  width: 68%;
  height: 10px;
  background: #1d1d1f;
}

.product-visual::after {
  left: 24%;
  top: 33%;
  width: 52%;
  height: 42%;
  border: 7px solid #1d1d1f;
  background: rgba(255, 255, 255, 0.36);
}

.optical {
  background: linear-gradient(145deg, #f6f8fb, #dfe6ef);
}

.sun {
  background: linear-gradient(145deg, #faf8f2, #d5b887);
}

.sun::after {
  background: rgba(35, 30, 24, 0.55);
}

.reading {
  background: linear-gradient(145deg, #f3f8f6, #c8dfd7);
}

.custom {
  background: linear-gradient(145deg, #f8f5f3, #d8d5d1);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(360px, 1fr);
  gap: clamp(34px, 8vw, 96px);
  align-items: start;
  background: #101114;
  color: #ffffff;
}

.split-section .eyebrow {
  color: #7db7ff;
}

.capability-list {
  display: grid;
  gap: 18px;
}

.capability-item {
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 18px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.capability-item span {
  color: #8a8d96;
  font-weight: 700;
}

.capability-item p {
  margin-bottom: 0;
  color: #bfc2cc;
}

.quality-section {
  background: #f5f5f7;
}

.quality-panel {
  padding: clamp(28px, 6vw, 70px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.proof-section {
  background: #ffffff;
}

.proof-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 18px;
}

.proof-card {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 360px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfbfd;
}

.proof-card.large {
  grid-row: span 2;
}

.proof-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  object-fit: cover;
}

.proof-card.large img {
  aspect-ratio: 1 / 1.05;
}

.proof-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.58;
}

.inquiry-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(340px, 1fr);
  gap: clamp(32px, 7vw, 90px);
  align-items: start;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.88) 48%, rgba(255, 255, 255, 0.58) 100%),
    url("./assets/images/inquiry-background-01.png") center right / cover no-repeat;
}

.contact-lines {
  display: grid;
  gap: 10px;
  margin-top: 24px;
  color: var(--accent);
  font-weight: 650;
}

.inquiry-form {
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
}

.inquiry-form label {
  display: grid;
  gap: 8px;
  color: #3c3c42;
  font-size: 14px;
  font-weight: 650;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px 14px;
  background: #ffffff;
  color: var(--ink);
  outline: none;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.12);
}

.form-status {
  min-height: 20px;
  margin: 0;
  color: var(--accent);
  font-size: 14px;
  line-height: 1.45;
}

.form-submit {
  width: 100%;
  margin-top: 4px;
  border: 0;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(260px, 1.4fr) repeat(3, minmax(150px, 0.7fr));
  gap: 28px;
  padding: 36px clamp(24px, 6vw, 88px);
  border-top: 1px solid var(--line);
  background: #ffffff;
  color: var(--muted);
}

.site-footer div {
  display: grid;
  align-content: start;
  gap: 9px;
}

.site-footer strong {
  color: var(--ink);
}

.site-footer p {
  margin: 0;
  line-height: 1.6;
}

.site-footer a:hover {
  color: var(--accent);
}

.catalog-hero {
  padding: clamp(82px, 10vw, 138px) clamp(24px, 6vw, 88px) clamp(48px, 6vw, 80px);
  background:
    radial-gradient(circle at 76% 26%, rgba(0, 113, 227, 0.12), transparent 28rem),
    linear-gradient(180deg, #ffffff 0%, #f5f5f7 100%);
}

.catalog-hero h1 {
  max-width: 760px;
}

.catalog-hero p:last-child {
  max-width: 650px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.7;
}

.category-band {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 18px clamp(24px, 6vw, 88px);
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(18px);
}

.subcategory-band {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px clamp(24px, 6vw, 88px);
  border-bottom: 1px solid var(--line);
  background: #f5f5f7;
}

.subcategory-band[hidden] {
  display: none;
}

.category-chip,
.subcategory-chip {
  flex: 0 0 auto;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 18px;
  background: #ffffff;
  color: #26272b;
}

.subcategory-chip {
  min-height: 36px;
  padding: 0 14px;
  background: #fbfbfd;
  color: #4f5159;
  font-size: 14px;
}

.category-chip.active,
.subcategory-chip.active {
  border-color: #1d1d1f;
  background: #1d1d1f;
  color: #ffffff;
}

.catalog-section {
  padding-top: clamp(44px, 6vw, 76px);
}

.catalog-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 26px;
}

.catalog-toolbar h2 {
  font-size: clamp(32px, 4vw, 52px);
}

.catalog-toolbar span {
  color: var(--muted);
}

.catalog-grid .product-card {
  min-height: 410px;
}

.quote-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--accent);
  font-weight: 700;
}

.detail-shell {
  padding: clamp(42px, 6vw, 78px) clamp(24px, 6vw, 88px) clamp(52px, 7vw, 88px);
  background: #fbfbfd;
}

.detail-back {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--accent);
  font-weight: 700;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(320px, 1.08fr) minmax(320px, 0.92fr);
  gap: clamp(34px, 7vw, 88px);
  align-items: start;
}

.detail-media {
  display: grid;
  min-height: 560px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  overflow: hidden;
}

.detail-media img {
  width: 100%;
  height: 100%;
  max-height: 620px;
  object-fit: contain;
}

.detail-copy {
  padding-top: 18px;
}

.detail-copy h1 {
  font-size: clamp(42px, 5.5vw, 72px);
}

.detail-subtitle,
.detail-description,
.detail-empty p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.detail-fields {
  display: grid;
  gap: 12px;
  margin: 30px 0;
}

.detail-field {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.detail-field span {
  color: var(--muted);
}

.detail-field strong {
  font-weight: 650;
  line-height: 1.5;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.detail-empty,
.detail-loading {
  max-width: 680px;
}

.detail-loading {
  color: var(--muted);
  font-size: 18px;
}

.compact-inquiry {
  background: #f5f5f7;
}

@media (max-width: 980px) {
  .desktop-nav {
    display: none;
  }

  .carousel-slide,
  .split-section,
  .inquiry-section,
  .detail-layout {
    grid-template-columns: 1fr;
  }

  .hero-carousel,
  .carousel-track,
  .carousel-slide {
    min-height: auto;
  }

  .slide-art {
    min-height: 440px;
  }

  .product-grid,
  .home-category-grid,
  .quality-grid,
  .proof-grid,
  .process-grid,
  .ai-grid,
  .factory-section,
  .factory-grid,
  .exhibition-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .catalog-toolbar {
    align-items: start;
    flex-direction: column;
  }

  .detail-media {
    min-height: 420px;
  }
}

@media (max-width: 680px) {
  html,
  body {
    width: 100%;
    overflow-x: hidden;
  }

  .site-header {
    flex-wrap: wrap;
    align-content: center;
    gap: 8px 12px;
    min-height: 88px;
    padding: 0 16px;
  }

  .desktop-nav {
    order: 3;
    display: flex;
    width: 100%;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
    font-size: 13px;
    scrollbar-width: none;
  }

  .desktop-nav a {
    flex: 0 0 auto;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 7px 12px;
    background: rgba(255, 255, 255, 0.76);
  }

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

  .header-cta {
    display: none;
  }

  .brand-logo {
    width: 132px;
    height: 34px;
  }

  h1 {
    width: min(10em, calc(100vw - 40px));
    max-width: calc(100vw - 40px);
    font-size: 30px;
    line-height: 1.12;
    word-break: break-all;
  }

  h2 {
    width: min(10em, calc(100vw - 40px));
    max-width: calc(100vw - 40px);
    font-size: 32px;
    line-height: 1.1;
    word-break: break-all;
  }

  .carousel-slide h2 {
    font-size: 30px;
    line-height: 1.12;
  }

  .slide-copy,
  .catalog-hero,
  .detail-copy,
  .section-heading {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    white-space: normal;
  }

  .carousel-slide {
    position: relative;
    display: none;
    grid-template-columns: minmax(0, 1fr);
    width: 100%;
    max-width: 100vw;
    overflow: hidden;
    padding: 42px 20px 34px;
  }

  .carousel-slide > *,
  .product-grid > *,
  .home-category-grid > *,
  .detail-layout > * {
    min-width: 0;
  }

  .carousel-slide.active {
    display: grid;
  }

  .carousel-slide::before,
  .theme-soft::before {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.72) 48%, rgba(255, 255, 255, 0.08) 100%);
  }

  .theme-dark::before {
    background: linear-gradient(180deg, rgba(5, 5, 6, 0.9) 0%, rgba(5, 5, 6, 0.66) 46%, rgba(5, 5, 6, 0.12) 100%);
  }

  .slide-bg {
    object-position: center bottom;
  }

  .hero-lede {
    width: min(22em, calc(100vw - 40px));
    max-width: calc(100vw - 40px);
    margin-top: 18px;
    font-size: 16px;
    line-height: 1.65;
    word-break: break-all;
  }

  .slide-art {
    min-height: 340px;
  }

  .carousel-controls {
    right: 20px;
    bottom: 18px;
  }

  .metric-strip,
  .product-grid,
  .quality-grid,
  .proof-grid,
  .process-grid,
  .ai-grid,
  .factory-section,
  .factory-grid,
  .exhibition-list {
    grid-template-columns: 1fr;
  }

  .home-category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .home-category {
    gap: 10px;
    min-height: 158px;
    padding: 10px;
  }

  .home-category img {
    aspect-ratio: 5 / 3;
  }

  .home-category strong {
    font-size: 17px;
    line-height: 1.18;
  }

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

  #productGrid .product-card {
    padding: 10px;
  }

  #productGrid .product-visual {
    height: 132px;
    margin-bottom: 12px;
  }

  #productGrid .product-card p,
  #productGrid .product-meta {
    display: none;
  }

  .section {
    padding-inline: 20px;
    max-width: 100vw;
    overflow: hidden;
  }

  .process-section {
    padding-inline: 0;
  }

  .process-visual-wrap {
    overflow-x: auto;
    padding-inline: 20px;
    scrollbar-width: none;
  }

  .process-visual-wrap::-webkit-scrollbar {
    display: none;
  }

  .process-visual {
    width: 980px;
    max-width: none;
  }

  .catalog-hero {
    max-width: 100vw;
    overflow: hidden;
    padding: 58px 20px 42px;
  }

  .catalog-hero h1,
  .catalog-hero p {
    width: min(100%, calc(100vw - 40px));
    min-width: 0;
  }

  .catalog-hero p:last-child,
  .section-heading p,
  .detail-subtitle,
  .detail-description,
  .detail-empty p {
    font-size: 16px;
    line-height: 1.65;
    max-width: 100%;
    word-break: break-all;
  }

  .category-band {
    padding-inline: 20px;
  }

  .category-chip {
    min-height: 38px;
    padding: 0 15px;
    font-size: 14px;
  }

  .catalog-toolbar h2 {
    font-size: 32px;
  }

  .proof-card,
  .proof-card.large {
    min-height: auto;
    grid-row: auto;
  }

  .metric-strip {
    margin: 0 20px;
  }

  .product-card {
    width: 100%;
    min-width: 0;
    overflow: hidden;
    min-height: auto;
    padding: 14px;
  }

  .product-visual {
    width: 100%;
    max-width: 100%;
    height: 210px;
    background: #ffffff;
  }

  .product-visual.has-image img {
    display: block;
    max-width: 100%;
    object-fit: contain;
    object-position: center;
  }

  .catalog-grid .product-card {
    min-height: auto;
  }

  .product-card h3 {
    font-size: 19px;
    line-height: 1.25;
  }

  .detail-field {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .detail-media {
    min-height: 260px;
  }

  .process-grid article,
  .factory-grid article,
  .exhibition-list article {
    min-height: auto;
    padding: 18px;
  }

  .detail-shell {
    padding: 30px 20px 52px;
  }

  .detail-copy h1 {
    font-size: 32px;
    line-height: 1.12;
  }

  .hero-card {
    min-width: 130px;
    padding: 13px 14px;
  }

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