:root {
  --ink: #102033;
  --muted: rgba(33, 55, 76, 0.74);
  --dim: rgba(33, 55, 76, 0.56);
  --line: rgba(28, 139, 162, 0.16);
  --glass: rgba(255, 255, 255, 0.82);
  --glass-strong: rgba(255, 255, 255, 0.96);
  --cyan: #09b8c8;
  --teal: #0aa994;
  --green: #1ebc73;
  --blue: #2f7df4;
  --navy: #061426;
  --surface: #ffffff;
  --surface-soft: #f5fbfd;
  --surface-tint: #eef8f9;
  --shadow: 0 18px 46px rgba(22, 74, 96, 0.1);
  --shadow-hover: 0 24px 58px rgba(22, 74, 96, 0.16);
  --header: 82px;
  --section-gap: clamp(18px, 2.4vw, 28px);
  --card-gap: clamp(10px, 1.25vw, 16px);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 8%, rgba(9, 184, 200, 0.08), transparent 28%),
    radial-gradient(circle at 88% 24%, rgba(30, 188, 115, 0.07), transparent 26%),
    linear-gradient(135deg, #ffffff 0%, #fbfeff 42%, #f2fafb 100%);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.6;
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(9, 184, 200, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(9, 184, 200, 0.025) 1px, transparent 1px);
  background-size: 64px 64px, 64px 64px;
  opacity: 0.72;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 72%);
}

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

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

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

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: minmax(190px, 1fr) auto minmax(190px, 1fr);
  align-items: center;
  gap: 18px;
  min-height: var(--header);
  padding: 0 4vw;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  box-shadow: 0 10px 32px rgba(28, 74, 98, 0.08);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  place-items: center;
  gap: 5px;
  border: 1px solid rgba(9, 184, 200, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-open .menu-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.nav-open .menu-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 230px;
}

.brand-mark {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(9, 184, 200, 0.18);
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 10px 26px rgba(9, 96, 160, 0.16);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 20px;
  line-height: 1.2;
}

.brand small {
  color: var(--dim);
  font-size: 11px;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 1.08vw, 18px);
  color: var(--muted);
  font-size: 18px;
  font-weight: 700;
  white-space: nowrap;
}

.site-nav a,
.lang-toggle {
  padding: 25px 0 23px;
  border-bottom: 3px solid transparent;
  transition: color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a.active,
.lang-toggle:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.site-nav a:hover,
.lang-toggle:hover {
  transform: translateY(-2px);
}

.lang-toggle {
  min-width: auto;
  height: auto;
  border: 0;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.snap-container {
  height: 100vh;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
}

.panel {
  position: relative;
  min-height: 100vh;
  display: grid;
  align-items: center;
  padding: calc(var(--header) + 18px) 0 26px;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  overflow: hidden;
  border-bottom: 1px solid rgba(28, 139, 162, 0.08);
}

.panel::after {
  content: "";
  position: absolute;
  inset: 10% 7%;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 20%, rgba(9, 184, 200, 0.07), transparent 23%),
    radial-gradient(circle at 86% 72%, rgba(30, 188, 115, 0.06), transparent 27%);
  filter: blur(12px);
}

.panel-inner {
  position: relative;
  z-index: 2;
  width: min(1180px, 88vw);
  margin: 0 auto;
}

.hero-panel {
  background: var(--surface);
}

.products-panel,
.applications-panel,
.cooperation-panel {
  background: linear-gradient(135deg, #ffffff 0%, var(--surface-soft) 100%);
}

.about-panel,
.manufacturing-panel,
.quality-panel,
.contact-panel {
  background: linear-gradient(135deg, var(--surface-soft) 0%, #ffffff 72%);
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  opacity: 0.28;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.9) 48%, rgba(241, 250, 251, 0.72) 100%),
    radial-gradient(circle at 75% 42%, rgba(9, 184, 200, 0.09), transparent 34%);
}

.tech-orbit {
  position: absolute;
  right: 5vw;
  top: 18vh;
  width: 420px;
  height: 420px;
  opacity: 0.58;
  border: 1px solid rgba(57, 231, 242, 0.16);
  border-radius: 50%;
  box-shadow:
    inset 0 0 60px rgba(57, 231, 242, 0.08),
    0 0 80px rgba(18, 201, 181, 0.16);
}

.tech-orbit::before,
.tech-orbit::after {
  content: "";
  position: absolute;
  border: 1px dashed rgba(117, 240, 162, 0.26);
  border-radius: 50%;
}

.tech-orbit::before {
  inset: 58px;
}

.tech-orbit::after {
  inset: 126px;
}

.hero-grid,
.split-layout,
.quality-layout,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(420px, 1.08fr) minmax(320px, 0.92fr);
  gap: clamp(24px, 3.2vw, 44px);
  align-items: center;
}

.contact-layout {
  grid-template-columns: minmax(440px, 1fr) minmax(360px, 0.82fr);
  gap: clamp(24px, 3vw, 42px);
}

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

.hero-content {
  max-width: 1120px;
  padding-top: 10px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  padding: 8px 14px;
  border: 1px solid rgba(117, 240, 162, 0.36);
  border-radius: 999px;
  color: var(--green);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 10px 26px rgba(20, 149, 159, 0.1);
  font-size: 14px;
  font-weight: 900;
}

.hero-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 14px rgba(117, 240, 162, 0.8);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-content h1,
.panel h2 {
  margin: 0;
  line-height: 1.1;
}

.hero-content h1 {
  width: min(1180px, 100%);
  font-size: clamp(46px, 4.6vw, 64px);
  line-height: 1.05;
  letter-spacing: 0;
  text-wrap: balance;
  white-space: nowrap;
  text-shadow: none;
}

html[lang="en"] .hero-content h1 {
  width: min(940px, 100%);
  white-space: normal;
}

.panel h2 {
  font-size: clamp(30px, 3.6vw, 44px);
}

.lead,
.section-heading > p,
.section-copy,
.contact-copy {
  width: min(760px, 100%);
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 1.55vw, 19px);
}

.hero-content .lead {
  width: min(760px, 100%);
  margin-top: 18px;
  padding: 15px 18px;
  border: 1px solid rgba(57, 231, 242, 0.2);
  border-left: 4px solid rgba(57, 231, 242, 0.68);
  border-radius: 8px;
  color: rgba(16, 32, 51, 0.78);
  background: rgba(255, 255, 255, 0.86);
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.78;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  width: min(760px, 100%);
  margin-top: 18px;
}

.hero-tags span {
  padding: 7px 12px;
  border: 1px solid rgba(57, 231, 242, 0.24);
  border-radius: 8px;
  color: rgba(16, 32, 51, 0.72);
  background: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  font-weight: 800;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 24px;
  border-radius: 8px;
  font-weight: 800;
  white-space: nowrap;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.primary-button {
  border: 0;
  color: #04131c;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 0 30px rgba(57, 231, 242, 0.26);
  cursor: pointer;
}

.secondary-button {
  border: 1px solid rgba(57, 231, 242, 0.44);
  color: var(--cyan);
  background: rgba(255, 255, 255, 0.74);
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-3px);
}

.primary-button:hover {
  box-shadow: 0 12px 34px rgba(57, 231, 242, 0.34);
}

.secondary-button:hover {
  border-color: rgba(57, 231, 242, 0.72);
  background: rgba(9, 184, 200, 0.08);
  box-shadow: 0 10px 28px rgba(57, 231, 242, 0.16);
}

.hero-metrics {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  width: min(360px, 100%);
  margin-top: 30px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(57, 231, 242, 0.08);
}

.hero-metrics div,
.hero-product-glass,
.product-card,
.about-grid article,
.tech-grid article,
.capability-grid article,
.scenario-grid article,
.glass-list article,
.process-grid article,
.business-card,
.contact-form {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(247, 253, 253, 0.86));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-metrics div {
  padding: 16px 18px;
}

.hero-metrics div,
.hero-product-glass,
.product-card,
.about-grid article,
.tech-grid article,
.capability-grid article,
.scenario-grid article,
.glass-list article,
.process-grid article,
.business-card,
.contact-form,
.application-gallery figure,
.client-strip span,
.test-strip span {
  transition: transform 190ms ease, box-shadow 190ms ease, border-color 190ms ease, background 190ms ease;
}

.hero-metrics div:hover,
.hero-product-glass:hover,
.product-card:hover,
.about-grid article:hover,
.tech-grid article:hover,
.capability-grid article:hover,
.scenario-grid article:hover,
.glass-list article:hover,
.process-grid article:hover,
.application-gallery figure:hover,
.client-strip span:hover,
.test-strip span:hover {
  transform: translateY(-6px);
  border-color: rgba(57, 231, 242, 0.58);
  box-shadow: var(--shadow-hover), 0 0 24px rgba(57, 231, 242, 0.11);
}

.hero-metrics strong,
.hero-metrics span {
  display: block;
}

.hero-metrics strong {
  color: var(--cyan);
  font-size: clamp(21px, 2.4vw, 30px);
  line-height: 1.1;
}

.hero-metrics span {
  margin-top: 6px;
  color: var(--dim);
  font-size: 13px;
}

.hero-product-glass {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 430px;
  padding: 24px;
  border-radius: 8px;
}

.hero-product-glass::before {
  content: "";
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(57, 231, 242, 0.22), transparent 62%);
  filter: blur(14px);
}

.hero-product-glass img {
  position: relative;
  max-height: 340px;
  object-fit: contain;
  filter: drop-shadow(0 22px 34px rgba(22, 74, 96, 0.2));
}

.hero-product-glass span {
  position: relative;
  color: var(--cyan);
  font-weight: 900;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(300px, 1.15fr);
  gap: clamp(22px, 3vw, 38px);
  align-items: end;
  margin-bottom: var(--section-gap);
}

.product-showcase {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 4px 4px 16px;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--cyan) rgba(20, 149, 159, 0.08);
}

.product-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: -6px 0 18px;
}

.product-filters button {
  min-height: 36px;
  padding: 0 15px;
  border: 1px solid rgba(9, 184, 200, 0.2);
  border-radius: 8px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.82);
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, color 180ms ease, border-color 180ms ease, background 180ms ease;
}

.product-filters button:hover,
.product-filters button.active {
  color: #05313a;
  border-color: rgba(9, 184, 200, 0.48);
  background: linear-gradient(135deg, rgba(9, 184, 200, 0.14), rgba(30, 188, 115, 0.12));
  box-shadow: 0 12px 28px rgba(22, 74, 96, 0.1);
}

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

.product-showcase::-webkit-scrollbar {
  height: 10px;
}

.product-showcase::-webkit-scrollbar-track {
  background: rgba(20, 149, 159, 0.08);
  border-radius: 999px;
}

.product-showcase::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, var(--cyan), var(--green));
  border-radius: 999px;
}

.product-card {
  flex: 0 0 clamp(235px, 24vw, 320px);
  display: grid;
  align-content: space-between;
  min-height: 292px;
  overflow: hidden;
  border-radius: 8px;
  scroll-snap-align: start;
  cursor: pointer;
}

.product-card[hidden] {
  display: none;
}

.product-card img {
  width: 100%;
  height: 184px;
  object-fit: contain;
  padding: 20px;
  background: linear-gradient(180deg, #ffffff 0%, #f7fcfd 100%);
  transition: transform 220ms ease;
}

.product-card:hover img {
  transform: scale(1.045);
}

.product-card h3,
.product-card p {
  margin-right: 18px;
  margin-left: 18px;
}

.product-card h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 18px;
  line-height: 1.24;
}

.product-card p {
  margin-top: 0;
  margin-bottom: 8px;
  color: var(--dim);
  font-size: 13px;
}

.detail-link {
  display: inline-flex;
  width: fit-content;
  margin: 0 18px 18px;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.product-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.product-detail-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.product-detail-modal.open {
  opacity: 1;
  pointer-events: auto;
}

.product-detail-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(232, 244, 248, 0.72);
  backdrop-filter: blur(14px);
}

.product-detail-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: 30px;
  width: min(1120px, 94vw);
  max-height: min(760px, 90vh);
  overflow: auto;
  padding: 28px;
  border: 1px solid rgba(57, 231, 242, 0.32);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(243, 252, 252, 0.98)),
    radial-gradient(circle at 16% 10%, rgba(9, 184, 200, 0.1), transparent 30%);
  box-shadow: 0 36px 120px rgba(30, 72, 96, 0.22);
}

.detail-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(57, 231, 242, 0.32);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.86);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, color 180ms ease;
}

.detail-close:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  color: var(--cyan);
}

.detail-media {
  display: grid;
  min-height: 430px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.95);
  overflow: hidden;
}

.detail-media img {
  width: 100%;
  max-height: 430px;
  object-fit: contain;
  padding: 22px;
}

.detail-content {
  align-self: center;
  padding-right: 30px;
}

.detail-content h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
}

.detail-intro {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.detail-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.detail-specs p {
  margin: 0;
  padding: 14px;
  border: 1px solid rgba(57, 231, 242, 0.2);
  border-radius: 8px;
  background: rgba(247, 253, 253, 0.82);
}

.detail-specs strong,
.detail-specs span {
  display: block;
}

.detail-specs strong {
  color: var(--green);
  font-size: 12px;
}

.detail-specs span {
  margin-top: 4px;
  color: var(--ink);
  font-weight: 800;
}

.detail-section {
  margin-top: 22px;
}

.detail-section h3 {
  margin: 0 0 10px;
  color: var(--cyan);
  font-size: 18px;
}

.detail-section ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.detail-section p {
  margin: 0;
  color: var(--muted);
}

.detail-content .primary-button {
  margin-top: 26px;
}

.capability-grid,
.about-grid,
.tech-grid,
.scenario-grid,
.glass-list,
.process-grid {
  display: grid;
  gap: var(--card-gap);
}

.about-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 20px;
}

.about-grid article {
  min-height: 168px;
  padding: 22px;
  border-radius: 8px;
}

.about-grid span {
  display: inline-flex;
  min-width: 56px;
  justify-content: center;
  padding: 6px 12px;
  border: 1px solid rgba(57, 231, 242, 0.28);
  border-radius: 999px;
  color: var(--cyan);
  background: rgba(57, 231, 242, 0.08);
  font-size: 13px;
  font-weight: 900;
}

.about-grid h3 {
  margin: 18px 0 10px;
  font-size: 23px;
  line-height: 1.2;
}

.about-grid p,
.tech-grid p,
.detail-list p {
  margin: 0;
  color: var(--muted);
}

.tech-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 14px;
}

.tech-grid article {
  min-height: 132px;
  padding: 18px;
  border-radius: 8px;
}

.tech-grid strong {
  display: block;
  margin-bottom: 10px;
  color: var(--green);
  font-size: 18px;
}

.certificate-showcase {
  grid-column: 1;
  grid-row: 3;
  margin-top: -10px;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(247, 253, 253, 0.86));
  box-shadow: var(--shadow);
}

.certificate-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.certificate-heading h3 {
  margin: 0;
  color: var(--ink);
  flex: 0 0 auto;
  font-size: 17px;
  line-height: 1.25;
  white-space: nowrap;
}

.certificate-heading p {
  width: min(520px, 100%);
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.certificate-track {
  display: flex;
  gap: 7px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 2px 2px 6px;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--cyan) rgba(20, 149, 159, 0.08);
}

.certificate-track::-webkit-scrollbar {
  height: 9px;
}

.certificate-track::-webkit-scrollbar-track {
  background: rgba(20, 149, 159, 0.08);
  border-radius: 999px;
}

.certificate-track::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, var(--cyan), var(--green));
  border-radius: 999px;
}

.certificate-track figure {
  flex: 0 0 138px;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(9, 184, 200, 0.16);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 12px 28px rgba(22, 74, 96, 0.08);
  scroll-snap-align: start;
}

.certificate-track img {
  width: 100%;
  height: 108px;
  object-fit: cover;
  object-position: top center;
  border-bottom: 1px solid rgba(9, 184, 200, 0.12);
  filter: blur(0.45px) contrast(0.86) brightness(1.04);
  opacity: 0.82;
}

.certificate-track figcaption {
  padding: 6px 8px;
  color: var(--ink);
  font-size: 11px;
  font-weight: 900;
  line-height: 1.25;
}

.capability-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 20px;
}

.detail-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.detail-list p {
  padding-left: 14px;
  border-left: 3px solid rgba(57, 231, 242, 0.5);
  font-size: 14px;
}

.capability-grid article,
.scenario-grid article,
.glass-list article,
.process-grid article {
  min-height: 106px;
  padding: 16px;
  border-radius: 8px;
}

.cooperation-panel .process-grid article {
  min-height: 104px;
  padding: 15px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(241, 250, 251, 0.9)),
    radial-gradient(circle at 92% 16%, rgba(9, 184, 200, 0.12), transparent 34%);
}

.cooperation-panel .process-grid h3 {
  margin: 14px 0 6px;
  font-size: 18px;
}

.cooperation-panel .process-grid p {
  font-size: 13px;
  line-height: 1.55;
}

.capability-grid strong,
.scenario-grid span,
.process-grid span {
  color: var(--cyan);
  font-weight: 900;
}

.capability-grid span,
.glass-list strong {
  display: block;
  margin-top: 10px;
  font-size: 20px;
  font-weight: 900;
}

.workshop-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, 150px);
  gap: var(--card-gap);
  align-self: center;
}

.workshop-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.workshop-gallery img:hover {
  transform: translateY(-5px) scale(1.015);
  border-color: rgba(57, 231, 242, 0.58);
  box-shadow: var(--shadow-hover), 0 0 22px rgba(57, 231, 242, 0.12);
}

.applications-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(280px, 0.82fr);
  gap: var(--card-gap);
  align-items: stretch;
}

.application-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, 178px);
  gap: var(--card-gap);
}

.application-gallery figure {
  position: relative;
  min-height: 178px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.application-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.86;
  transform: scale(1.01);
  transition: transform 260ms ease, opacity 220ms ease;
}

.application-gallery figure:hover img {
  opacity: 0.96;
  transform: scale(1.065);
}

.application-gallery figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 34%, rgba(5, 66, 82, 0.66));
  pointer-events: none;
}

.application-gallery figcaption {
  position: absolute;
  right: 14px;
  bottom: 12px;
  left: 14px;
  z-index: 2;
  color: #ffffff;
  font-size: 15px;
  font-weight: 900;
  line-height: 1.25;
}

.application-note {
  align-self: center;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(247, 253, 253, 0.88));
  box-shadow: var(--shadow);
}

.application-note strong {
  display: block;
  color: var(--green);
  font-size: 24px;
  line-height: 1.25;
}

.application-note p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.scenario-grid,
.process-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.scenario-grid h3,
.process-grid h3 {
  margin: 18px 0 8px;
  font-size: 21px;
}

.scenario-grid p,
.process-grid p,
.glass-list p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

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

.quality-layout .glass-list article {
  min-height: 82px;
  padding: 12px;
}

.quality-layout,
.contact-layout {
  align-items: start;
}

.quality-layout > div:first-child,
.contact-layout > div:first-child {
  align-self: start;
}

.quality-evidence {
  display: grid;
  grid-column: 2;
  grid-row: 3;
  gap: 7px;
  margin-top: 0;
}

.quality-evidence h3 {
  margin: 0 0 5px;
  color: var(--cyan);
  font-size: 18px;
  line-height: 1.25;
}

.quality-evidence p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.quality-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
}

.quality-gallery figure {
  position: relative;
  min-height: 96px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
  transition: transform 190ms ease, box-shadow 190ms ease, border-color 190ms ease;
}

.quality-gallery figure:hover {
  transform: translateY(-5px);
  border-color: rgba(57, 231, 242, 0.58);
  box-shadow: var(--shadow-hover), 0 0 22px rgba(57, 231, 242, 0.12);
}

.quality-gallery img {
  width: 100%;
  height: 100%;
  min-height: 96px;
  object-fit: cover;
  opacity: 0.9;
}

.quality-gallery figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 42%, rgba(5, 66, 82, 0.68));
  pointer-events: none;
}

.quality-gallery figcaption {
  position: absolute;
  right: 10px;
  bottom: 9px;
  left: 10px;
  z-index: 2;
  color: #ffffff;
  font-size: 12px;
  font-weight: 900;
  line-height: 1.2;
}

.cooperation-evidence {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: 16px;
  align-items: center;
  margin-top: 10px;
}

.cooperation-evidence h3 {
  margin: 0 0 8px;
  color: var(--cyan);
  font-size: 18px;
  line-height: 1.25;
}

.cooperation-evidence p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.cooperation-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.cooperation-gallery figure {
  position: relative;
  min-height: 108px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
  transition: transform 190ms ease, box-shadow 190ms ease, border-color 190ms ease;
}

.cooperation-gallery figure:hover {
  transform: translateY(-5px);
  border-color: rgba(57, 231, 242, 0.58);
  box-shadow: var(--shadow-hover), 0 0 22px rgba(57, 231, 242, 0.12);
}

.cooperation-gallery img {
  width: 100%;
  height: 100%;
  min-height: 108px;
  object-fit: cover;
  opacity: 0.9;
}

.cooperation-gallery figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 42%, rgba(5, 66, 82, 0.68));
  pointer-events: none;
}

.cooperation-gallery figcaption {
  position: absolute;
  right: 10px;
  bottom: 9px;
  left: 10px;
  z-index: 2;
  color: #ffffff;
  font-size: 12px;
  font-weight: 900;
  line-height: 1.2;
}

.client-showcase {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(360px, 1.02fr);
  gap: 12px 14px;
  margin-top: -8px;
  margin-bottom: 14px;
  padding: 14px;
  border: 1px solid rgba(9, 184, 200, 0.18);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(235, 250, 251, 0.88)),
    radial-gradient(circle at 88% 12%, rgba(30, 188, 115, 0.12), transparent 30%);
  box-shadow: var(--shadow);
}

.client-showcase-head {
  display: flex;
  grid-column: 1 / -1;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 0;
}

.client-showcase-head p {
  width: min(680px, 100%);
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.client-showcase-head strong {
  flex: 0 0 auto;
  padding: 8px 12px;
  border: 1px solid rgba(30, 188, 115, 0.24);
  border-radius: 999px;
  color: #087460;
  background: rgba(30, 188, 115, 0.08);
  font-size: 13px;
}

.client-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.client-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  align-content: start;
}

.strip-title {
  margin: 0;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.25;
}

.client-strip span,
.client-tab,
.test-strip span {
  padding: 10px 14px;
  border: 1px solid rgba(57, 231, 242, 0.22);
  border-radius: 8px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.72);
}

.client-strip span,
.client-tab {
  display: grid;
  grid-template-columns: 86px 1fr;
  min-height: 66px;
  gap: 12px;
  align-items: center;
  place-items: center;
  text-align: left;
  color: #0f4050;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(236, 250, 250, 0.86));
  box-shadow: 0 12px 28px rgba(22, 74, 96, 0.08);
  font-weight: 900;
  line-height: 1.28;
}

.client-tab {
  width: 100%;
  min-height: 58px;
  cursor: pointer;
  font: inherit;
  transition: transform 190ms ease, box-shadow 190ms ease, border-color 190ms ease, background 190ms ease;
}

.client-tab:hover,
.client-tab.active {
  transform: translateY(-4px);
  border-color: rgba(9, 184, 200, 0.42);
  color: var(--navy);
  background: linear-gradient(145deg, #ffffff, rgba(226, 249, 251, 0.9));
  box-shadow: 0 16px 38px rgba(22, 74, 96, 0.12);
}

.client-strip img,
.client-tab img {
  width: 86px;
  height: 38px;
  border-radius: 8px;
  object-fit: contain;
  background: #ffffff;
}

.client-strip em,
.client-tab em {
  font-style: normal;
}

.client-detail-list {
  min-width: 0;
  margin-top: 0;
}

.client-detail {
  display: none;
  min-height: 100%;
  padding: 16px;
  border: 1px solid rgba(9, 184, 200, 0.2);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(241, 250, 251, 0.86)),
    radial-gradient(circle at 96% 10%, rgba(30, 188, 115, 0.12), transparent 34%);
}

.client-detail.active {
  display: block;
}

.client-detail h4 {
  margin: 0 0 8px;
  color: var(--navy);
  font-size: 20px;
}

.client-detail p {
  max-width: 980px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}

.client-detail dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 12px 0 0;
}

.client-detail dl div {
  padding: 12px 14px;
  border: 1px solid rgba(57, 231, 242, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.client-detail dt {
  margin-bottom: 5px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
}

.client-detail dd {
  margin: 0;
  color: var(--navy);
  font-size: 14px;
  font-weight: 800;
}

.test-strip {
  display: flex;
  grid-column: 1;
  grid-row: 2;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: -56px;
  align-self: start;
}

.business-card {
  margin-top: 20px;
  padding: 6px 24px;
  border-radius: 8px;
}

.business-card p {
  display: grid;
  grid-template-columns: 104px 1fr;
  gap: 16px;
  margin: 0;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.business-card p:last-child {
  border-bottom: 0;
}

.business-card strong {
  color: var(--ink);
}

.wechat-card {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  align-items: center;
  margin-top: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(247, 253, 253, 0.86));
  box-shadow: var(--shadow);
}

.wechat-card img {
  width: 96px;
  height: 96px;
  padding: 6px;
  border: 1px solid rgba(9, 184, 200, 0.16);
  border-radius: 8px;
  background: #ffffff;
  object-fit: contain;
}

.wechat-card strong {
  display: block;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.25;
}

.wechat-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.contact-form {
  display: grid;
  gap: 12px;
  padding: 22px;
  border-radius: 8px;
}

.contact-side {
  display: grid;
  gap: 12px;
  align-content: start;
}

.form-feedback {
  display: none;
  margin: -4px 0 0;
  padding: 12px 14px;
  border: 1px solid rgba(30, 188, 115, 0.24);
  border-radius: 8px;
  color: #0a6856;
  background: rgba(30, 188, 115, 0.08);
  font-size: 14px;
  font-weight: 800;
}

.form-feedback.show {
  display: block;
}

.contact-form label,
.contact-form span {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(57, 231, 242, 0.24);
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.82);
  font: inherit;
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: rgba(9, 184, 200, 0.58);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(9, 184, 200, 0.1);
}

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

.full {
  width: 100%;
}

@media (max-width: 1120px) {
  :root {
    --header: 78px;
  }

  .site-header {
    grid-template-columns: 1fr auto;
    justify-items: stretch;
    gap: 12px;
    padding: 12px 5vw;
  }

  .brand {
    min-width: 0;
  }

  .menu-toggle {
    display: grid;
  }

  .site-nav {
    grid-column: 1 / -1;
    display: none;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding: 10px 0 2px;
    font-size: 15px;
  }

  .nav-open .site-nav {
    display: flex;
  }

  .site-nav a,
  .lang-toggle {
    padding: 8px 0 7px;
  }

  .hero-grid,
  .split-layout,
  .quality-layout,
  .contact-layout,
  .product-detail-panel,
  .applications-layout,
  .section-heading,
  .about-grid,
  .tech-grid {
    grid-template-columns: 1fr;
  }

  .hero-product-glass {
    min-height: 320px;
  }

  .certificate-heading {
    display: grid;
  }

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

  .hero-product-glass img {
    max-height: 260px;
  }

  .detail-content {
    padding-right: 0;
  }

  .detail-media {
    min-height: 300px;
  }

  .detail-media img {
    max-height: 300px;
  }

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

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

  .cooperation-evidence {
    grid-template-columns: 1fr;
  }

  .client-showcase {
    grid-template-columns: 1fr;
  }

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

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

  .workshop-gallery {
    grid-template-rows: repeat(2, 180px);
  }
}

@media (max-width: 700px) {
  :root {
    --header: 78px;
  }

  .brand small {
    display: none;
  }

  .brand strong {
    font-size: 16px;
  }

  .panel {
    align-items: start;
    padding-top: calc(var(--header) + 24px);
    padding-bottom: 28px;
  }

  .hero-actions,
    .hero-metrics,
    .capability-grid,
    .about-grid,
    .tech-grid,
    .scenario-grid,
    .applications-layout .scenario-grid,
    .application-gallery,
    .quality-gallery,
    .cooperation-gallery,
    .glass-list,
    .client-strip,
    .client-tabs,
  .process-grid,
  .workshop-gallery {
    grid-template-columns: 1fr;
  }

  .client-showcase-head {
    display: grid;
  }

  .client-strip span,
  .client-tab {
    grid-template-columns: 72px 1fr;
    min-height: 68px;
  }

  .client-strip img,
  .client-tab img {
    width: 72px;
    height: 34px;
  }

  .client-detail dl {
    grid-template-columns: 1fr;
  }

  .application-gallery {
    grid-template-rows: none;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-content h1 {
    font-size: clamp(34px, 10vw, 46px);
    white-space: normal;
  }

  .hero-kicker {
    margin-bottom: 14px;
    font-size: 12px;
  }

  .hero-content .lead {
    margin-top: 18px;
    padding: 14px;
    font-size: 16px;
    line-height: 1.72;
  }

  .hero-tags {
    margin-top: 14px;
  }

  .hero-metrics {
    margin-top: 24px;
  }

  .product-card {
    flex-basis: 82vw;
    min-height: 245px;
  }

  .product-card img {
    height: 160px;
  }

  .certificate-track figure {
    flex-basis: 58vw;
  }

  .certificate-track img {
    height: 210px;
  }

  .product-detail-modal {
    padding: 12px;
  }

  .product-detail-panel {
    max-height: 92vh;
    padding: 18px;
  }

  .detail-specs {
    grid-template-columns: 1fr;
  }

  .workshop-gallery {
    grid-template-rows: none;
  }

  .workshop-gallery img,
  .workshop-gallery img:first-child {
    aspect-ratio: 1.3 / 0.82;
  }

  .business-card p {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .wechat-card {
    grid-template-columns: 88px 1fr;
  }

  .wechat-card img {
    width: 88px;
    height: 88px;
  }
}