:root {
  --ink: #10202b;
  --muted: #61707d;
  --line: #dce5eb;
  --soft: #f5f8fa;
  --panel: #ffffff;
  --brand: #0e6f72;
  --brand-2: #1d9a8a;
  --accent: #e6a23c;
  --deep: #17323c;
  --danger: #d96144;
  --shadow: 0 18px 42px rgba(16, 32, 43, 0.12);
  --radius: 8px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #fff;
  line-height: 1.55;
}

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

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.top-strip {
  background: var(--deep);
  color: rgba(255, 255, 255, 0.86);
  font-size: 13px;
}

.wrap {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.top-strip .wrap {
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.top-strip strong {
  color: #fff;
  font-weight: 650;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(220, 229, 235, 0.85);
  backdrop-filter: blur(14px);
}

.header .wrap {
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 252px;
}

.brand-logo {
  width: 100px;
  height: 100px;
  object-fit: contain;
  object-position: left center;
  border-radius: 6px;
  background: #fff;
}

.brand-name {
  display: grid;
  gap: 1px;
}

.brand-name strong {
  font-size: 30px;
  letter-spacing: 0;
}

.brand-name span {
  color: var(--muted);
  font-size: 17px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  color: #263844;
  font-size: 18px;
  white-space: nowrap;
  flex: 1;
}

.nav a {
  position: relative;
  padding: 27px 0;
}

.nav a.active {
  color: var(--brand);
  font-weight: 700;
}

.nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  height: 3px;
  background: var(--brand);
  border-radius: 999px;
}

.header-actions {
  min-width: 150px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.phone {
  display: grid;
  justify-items: end;
  line-height: 1.25;
  white-space: nowrap;
}

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

.phone strong {
  color: var(--brand);
  font-size: 16px;
}

.btn {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 12px 22px rgba(14, 111, 114, 0.22);
}

.btn-light {
  color: var(--brand);
  background: #fff;
  box-shadow: 0 12px 24px rgba(16, 32, 43, 0.16);
}

.btn-ghost {
  color: var(--brand);
  background: #eef7f5;
  box-shadow: none;
}

.hero {
  position: relative;
  min-height: 638px;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(90deg, rgba(12, 34, 45, 0.92) 0%, rgba(12, 34, 45, 0.72) 48%, rgba(12, 34, 45, 0.2) 100%), var(--hero-image, url("/static/home/images/site/home-hero-industrial-plant.jpg")) center / cover;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 118px;
  background: linear-gradient(0deg, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.hero .wrap {
  position: relative;
  z-index: 1;
  min-height: 638px;
  display: grid;
  grid-template-columns: minmax(0, 690px) 360px;
  align-items: center;
  gap: 70px;
  padding: 72px 0 92px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 12px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  font-size: 14px;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
}

h1 {
  margin: 22px 0 20px;
  max-width: 720px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.12;
  letter-spacing: 0;
  font-weight: 780;
}

.hero-copy {
  max-width: 620px;
  margin: 0 0 34px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 42px;
}

.hero-phone {
  display: grid;
  gap: 2px;
  padding-left: 16px;
  border-left: 1px solid rgba(255, 255, 255, 0.32);
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
  line-height: 1.25;
}

.hero-phone strong {
  color: #fff;
  font-size: 20px;
  letter-spacing: 0;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  max-width: 690px;
}

.metric {
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  padding-top: 15px;
}

.metric strong {
  display: block;
  font-size: 28px;
  line-height: 1;
}

.metric span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.hero-panel {
  align-self: end;
  margin-bottom: 26px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.hero-panel h2 {
  margin: 0 0 18px;
  font-size: 20px;
  line-height: 1.3;
}

.quick-list {
  display: grid;
  gap: 12px;
}

.quick-list div {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
}

.check {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  display: grid;
  place-items: center;
  color: #073338;
  background: #bce7dc;
  font-size: 12px;
  font-weight: 900;
}

section {
  padding: 82px 0;
}

.section-head {
  margin-bottom: 34px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.section-kicker {
  margin: 0 0 8px;
  color: var(--brand);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-head h2 {
  margin: 0;
  font-size: 34px;
  line-height: 1.18;
  letter-spacing: 0;
}

.section-head p {
  max-width: 480px;
  margin: 0;
  color: var(--muted);
}

.category-strip {
  margin-top: -58px;
  position: relative;
  z-index: 2;
  padding: 0;
}

.category-strip .wrap {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: 0 22px 54px rgba(16, 32, 43, 0.14);
  background: #fff;
}

.category {
  min-height: 156px;
  padding: 32px 30px;
  background: #fff;
  display: grid;
  align-content: start;
  gap: 13px;
  border-right: 1px solid var(--line);
}

.category:last-child {
  border-right: 0;
}

.category b {
  color: var(--ink);
  font-size: 18px;
  line-height: 1.32;
}

.category span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.category .icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  color: #58717d;
  background: #e8f5f2;
  font-size: 14px;
  font-weight: 850;
}

.icon {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: var(--brand);
  background: #e6f4f1;
  font-weight: 900;
}

.products {
  background: #fff;
}

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

.product-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(14, 111, 114, 0.35);
  box-shadow: var(--shadow);
}

.product-media {
  position: relative;
  height: 178px;
  background: #eff5f6;
  overflow: hidden;
}

.product-media video,
.catalog-media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--deep);
}

.card-video-badge {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 1;
  border-radius: 999px;
  padding: 4px 9px;
  color: #fff;
  background: rgba(16, 32, 43, 0.76);
  font-size: 12px;
  line-height: 1;
}

.product-body {
  padding: 20px;
}

.product-body h3 {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.3;
}

.product-body p {
  min-height: 44px;
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
}

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

.tag {
  padding: 5px 8px;
  color: #31505b;
  border-radius: 4px;
  background: var(--soft);
  font-size: 12px;
  font-weight: 650;
}

.strength {
  background: var(--soft);
}

.strength-layout {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 42px;
  align-items: center;
}

.strength-visual {
  min-height: 500px;
  overflow: hidden;
  border-radius: var(--radius);
  position: relative;
  background: linear-gradient(180deg, rgba(16, 32, 43, 0.08), rgba(16, 32, 43, 0.5)), url("/static/home/images/site/about-product-samples.jpg") center / cover;
  box-shadow: var(--shadow);
}

.strength-badge {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  padding: 22px;
  border-radius: var(--radius);
  color: #fff;
  background: rgba(16, 32, 43, 0.72);
  backdrop-filter: blur(14px);
}

.strength-badge strong {
  display: block;
  margin-bottom: 5px;
  font-size: 24px;
}

.strength-badge span {
  color: rgba(255, 255, 255, 0.78);
}

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

.feature-item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.feature-item h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

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

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

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

.app-card {
  min-height: 220px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  color: #fff;
  background: var(--deep);
}

.app-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16, 32, 43, 0.1), rgba(16, 32, 43, 0.76));
  z-index: 1;
}

.app-card img {
  position: absolute;
  inset: 0;
}

.app-card div {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 20px;
  z-index: 2;
}

.app-card h3 {
  margin: 0 0 6px;
  font-size: 21px;
}

.app-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.cert,
.article-card,
.info-card {
  min-height: 180px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.cert {
  background: linear-gradient(135deg, rgba(14, 111, 114, 0.06), rgba(230, 162, 60, 0.06)), #fff;
  display: grid;
  align-content: space-between;
}

.cert .seal {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--brand);
  font-weight: 900;
  box-shadow: 0 12px 20px rgba(14, 111, 114, 0.18);
}

.cert h3,
.article-card h3,
.info-card h3 {
  margin: 18px 0 6px;
  font-size: 18px;
}

.cert p,
.article-card p,
.info-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.contact-section {
  padding: 0 0 74px;
  background: #fff;
}

.contact-box {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 32px;
  padding: 26px 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f7faf9;
}

.contact-info {
  color: var(--ink);
}

.contact-info h2 {
  margin: 0 0 7px;
  font-size: 24px;
  line-height: 1.22;
}

.contact-info p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.phone-panel {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 170px;
}

.wechat-line span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.2;
  text-align: center;
}

.phone-number {
  display: inline-block;
  color: var(--brand);
  font-size: 25px;
  line-height: 1.1;
  font-weight: 850;
  letter-spacing: 0;
  word-break: break-word;
}

.wechat-line {
  display: grid;
  justify-items: center;
  gap: 10px;
}

.qr-placeholder,
.qr-image {
  width: 112px;
  height: 112px;
  border-radius: 6px;
  background: #fff;
  border: 7px solid #fff;
  box-shadow: inset 0 0 0 1px rgba(16, 32, 43, 0.18);
}

.qr-placeholder {
  background: linear-gradient(90deg, #132c35 10px, transparent 10px) 0 0 / 23px 23px, linear-gradient(#132c35 10px, transparent 10px) 0 0 / 23px 23px, #fff;
}

.page-hero {
  color: #fff;
  background: linear-gradient(110deg, rgba(16, 32, 43, 0.95), rgba(14, 111, 114, 0.78)), url("/static/home/images/site/application-industrial.jpg") center / cover;
  padding: 82px 0;
}

.product-page-hero {
  background: linear-gradient(110deg, rgba(16, 32, 43, 0.9), rgba(14, 111, 114, 0.58)), url("/static/home/images/site/product-center-cable-banner.jpg") center / cover;
}

.application-page-hero {
  background: linear-gradient(110deg, rgba(16, 32, 43, 0.9), rgba(14, 111, 114, 0.56)), url("/static/home/images/site/application-printing-banner.jpg") center / cover;
}

.about-page-hero {
  background: linear-gradient(110deg, rgba(16, 32, 43, 0.92), rgba(14, 111, 114, 0.56)), url("/static/home/images/site/about-chemistry-lab-banner.jpg") center / cover;
}

.contact-page-hero {
  background: linear-gradient(110deg, rgba(16, 32, 43, 0.9), rgba(14, 111, 114, 0.52)), url("/static/home/images/site/contact-handshake-banner.jpg") center 45% / cover;
}

.contact-page {
  background: #fff;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
  gap: 42px;
  align-items: start;
}

.contact-basic,
.contact-map-panel {
  min-width: 0;
  max-width: 100%;
  padding: 8px 0 0;
}

.contact-data {
  display: grid;
  gap: 0;
  margin: 0;
  min-width: 0;
  max-width: 100%;
}

.contact-data div {
  min-width: 0;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.contact-data dt {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
}

.contact-data dd {
  margin: 0;
  color: var(--ink);
  font-weight: 750;
  line-height: 1.45;
  word-break: break-word;
}

.contact-qr-row dd {
  display: grid;
  justify-items: start;
  gap: 10px;
}

.contact-qr-image,
.contact-qr-placeholder {
  width: 108px;
  height: 108px;
  border-radius: 6px;
  background: #fff;
  border: 8px solid #fff;
  box-shadow: inset 0 0 0 1px rgba(16, 32, 43, 0.18), 0 10px 24px rgba(16, 32, 43, 0.08);
}

.contact-qr-placeholder {
  background: linear-gradient(90deg, #132c35 10px, transparent 10px) 0 0 / 23px 23px, linear-gradient(#132c35 10px, transparent 10px) 0 0 / 23px 23px, #fff;
}

.map-frame {
  position: relative;
  aspect-ratio: 2984 / 1742;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  min-height: 420px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
  box-shadow: var(--shadow-soft);
}

.map-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.visit-item {
  min-height: 176px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.visit-item span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  color: #fff;
  border-radius: 50%;
  background: var(--brand);
  font-weight: 850;
}

.visit-item h3 {
  margin: 18px 0 8px;
  font-size: 18px;
}

.visit-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  font-size: 14px;
}

.page-hero h1 {
  margin: 0 0 16px;
  font-size: 46px;
}

.page-hero p {
  max-width: 680px;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 26px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.filter-bar input,
.filter-bar select {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 12px;
  background: #fff;
}

.product-catalog {
  background: linear-gradient(180deg, #f7fafb 0%, #fff 42%);
}

.catalog-shell {
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.catalog-sidebar,
.catalog-toolbar,
.catalog-summary,
.catalog-card,
.empty-state {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.catalog-sidebar {
  position: sticky;
  top: 98px;
  overflow: hidden;
  box-shadow: 0 14px 32px rgba(16, 32, 43, 0.08);
}

.catalog-title {
  padding: 22px 22px 18px;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--deep));
}

.catalog-title span {
  display: block;
  margin-bottom: 5px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.catalog-title strong {
  display: block;
  font-size: 22px;
}

.catalog-nav {
  display: grid;
  gap: 6px;
  padding: 16px;
}

.catalog-nav-group {
  display: grid;
  gap: 6px;
}

.catalog-nav-parent {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 34px;
  align-items: center;
  border-radius: 8px;
}

.catalog-nav-parent > a {
  min-height: 48px;
}

.catalog-toggle {
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  position: relative;
  align-self: stretch;
}

.catalog-toggle::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid #6d7e86;
  border-bottom: 2px solid #6d7e86;
  transform: translate(-50%, -62%) rotate(45deg);
  transition: transform 0.2s ease;
}

.catalog-nav-group.is-open .catalog-toggle::before {
  transform: translate(-50%, -38%) rotate(225deg);
}

.catalog-subnav {
  display: none;
  gap: 4px;
  padding: 0 0 2px 12px;
}

.catalog-nav-group.is-open .catalog-subnav {
  display: grid;
}

.catalog-nav a {
  min-height: 48px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-radius: 8px;
  color: #304550;
  font-weight: 750;
}

.catalog-nav a span {
  min-width: 0;
  overflow-wrap: anywhere;
  line-height: 1.35;
}

.catalog-nav a:hover,
.catalog-nav a.active,
.catalog-nav-parent.active > a,
.catalog-nav-parent.active .catalog-toggle {
  color: var(--brand);
  background: #eef7f5;
}

.catalog-nav a.level-0 {
  background: transparent;
}

.catalog-nav a.level-0 span {
  font-size: 15px;
}

.catalog-nav a.level-1 {
  min-height: 40px;
  padding-left: 24px;
  color: #526872;
  background: transparent;
  font-size: 14px;
  font-weight: 650;
}

.catalog-nav a.level-1:hover,
.catalog-nav a.level-1.active {
  color: var(--brand);
  background: #eef7f5;
}

.catalog-nav b {
  min-width: 30px;
  height: 24px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: #5b6d76;
  background: #f2f6f7;
  font-size: 12px;
  line-height: 1;
}

.catalog-nav a.level-1 b {
  min-width: 26px;
  height: 22px;
  font-size: 11px;
}

.catalog-nav a.active b {
  color: #fff;
  background: var(--brand);
}

.catalog-help {
  padding: 22px;
  background: var(--soft);
}

.catalog-help b {
  display: block;
  margin-bottom: 8px;
  font-size: 16px;
}

.catalog-help p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
}

.catalog-main {
  min-width: 0;
}

.catalog-toolbar {
  margin-bottom: 16px;
  padding: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.82fr);
  gap: 24px;
  align-items: end;
}

.catalog-toolbar .section-kicker {
  margin-bottom: 6px;
}

.catalog-toolbar h2 {
  margin: 0 0 8px;
  font-size: 30px;
  line-height: 1.2;
}

.catalog-toolbar span,
.catalog-summary span {
  color: var(--muted);
  font-size: 14px;
}

.catalog-search {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
}

.catalog-search input {
  min-width: 0;
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 13px;
  background: var(--soft);
}

.catalog-summary {
  margin-bottom: 18px;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.catalog-summary b {
  display: block;
  margin-bottom: 3px;
  color: #243a45;
}

.catalog-sort {
  flex: 0 0 auto;
  display: inline-flex;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--soft);
}

.catalog-sort span {
  min-height: 36px;
  padding: 0 13px;
  display: inline-flex;
  align-items: center;
  border-right: 1px solid var(--line);
  color: #455d68;
  font-size: 13px;
  font-weight: 700;
}

.catalog-sort span:last-child {
  border-right: 0;
}

.catalog-sort .active {
  color: #fff;
  background: var(--brand);
}

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

.catalog-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.catalog-card:hover {
  transform: translateY(-4px);
  border-color: rgba(14, 111, 114, 0.35);
  box-shadow: var(--shadow);
}

.catalog-media {
  position: relative;
  height: 204px;
  display: block;
  overflow: hidden;
  background: #eef4f5;
}

.catalog-media img,
.catalog-media video {
  transition: transform 0.24s ease;
}

.catalog-card:hover .catalog-media img,
.catalog-card:hover .catalog-media video {
  transform: scale(1.04);
}

.hot-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  height: 26px;
  padding: 0 9px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  color: #fff;
  background: var(--accent);
  font-size: 12px;
  font-weight: 850;
}

.catalog-card-body {
  flex: 1;
  padding: 18px;
  display: flex;
  flex-direction: column;
}

.catalog-name {
  min-height: 48px;
  display: block;
  color: #152a35;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
}

.catalog-name:hover {
  color: var(--brand);
}

.catalog-card-body p {
  min-height: 44px;
  margin: 8px 0 14px;
  color: var(--muted);
  font-size: 14px;
}

.catalog-meta {
  margin: 0 0 16px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.catalog-meta div {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(220, 229, 235, 0.84);
  border-radius: 6px;
  padding: 9px 11px;
  background: #f7fafb;
}

.catalog-meta .meta-wide {
  grid-column: 1 / -1;
}

.catalog-meta dt,
.catalog-meta dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.35;
}

.catalog-meta dt {
  color: #40616b;
  font-weight: 800;
  white-space: nowrap;
}

.catalog-meta dd {
  color: #2a3e48;
  min-width: 0;
  overflow-wrap: anywhere;
}

.catalog-actions {
  margin-top: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.catalog-actions .btn {
  min-height: 40px;
  padding: 0 12px;
  font-size: 14px;
}

.empty-state {
  padding: 46px 24px;
  text-align: center;
}

.empty-state b {
  display: block;
  margin-bottom: 8px;
  font-size: 22px;
}

.empty-state p {
  margin: 0 0 18px;
  color: var(--muted);
}

.product-showcase {
  padding: 70px 0 54px;
  background: #fff;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(380px, 1.05fr) minmax(340px, 0.95fr);
  gap: 34px;
  align-items: start;
  min-width: 0;
}

.application-detail-section {
  padding: 70px 0 82px;
}

.application-detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 34px;
  align-items: start;
}

.detail-panel.application-detail-panel {
  padding: 38px;
  display: grid;
  gap: 18px;
}

.application-detail-panel h2 {
  margin: 0;
  color: var(--ink);
  font-size: 34px;
  line-height: 1.2;
}

.application-lead {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.application-rich-content {
  color: #304550;
  font-size: 16px;
  line-height: 1.85;
}

.application-rich-content p {
  margin: 0 0 14px;
}

.application-rich-content p:last-child {
  margin-bottom: 0;
}

.application-side {
  position: sticky;
  top: 104px;
  display: grid;
  gap: 16px;
}

.application-thumb {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
  aspect-ratio: 16 / 10;
}

.application-side-panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.application-side-panel b {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 18px;
}

.application-side-panel p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.detail-media {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.product-gallery {
  display: grid;
  gap: 14px;
  padding: 14px;
}

.product-gallery-stage {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: #eef3f5;
  aspect-ratio: 1.14 / 1;
}

.product-gallery-slide {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.product-gallery-slide.is-active {
  opacity: 1;
  visibility: visible;
}

.product-gallery-media {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #eef3f5;
}

video.product-gallery-media {
  object-fit: contain;
  background: #0f202b;
}

.gallery-nav {
  position: absolute;
  top: 50%;
  z-index: 2;
  width: 42px;
  height: 54px;
  border: 0;
  border-radius: 6px;
  color: #fff;
  background: rgba(16, 32, 43, 0.62);
  cursor: pointer;
  font-size: 30px;
  line-height: 1;
  transform: translateY(-50%);
}

.gallery-prev {
  left: 12px;
}

.gallery-next {
  right: 12px;
}

.product-gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.product-gallery-thumb {
  display: block;
  overflow: hidden;
  aspect-ratio: 1.18 / 1;
  border: 2px solid transparent;
  border-radius: 6px;
  padding: 0;
  background: var(--soft);
  cursor: pointer;
}

.product-gallery-thumb.is-active {
  border-color: var(--brand);
}

.product-gallery-thumb img,
.video-thumb {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-thumb {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: var(--deep);
}

.video-thumb video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-thumb span {
  position: absolute;
  right: 6px;
  bottom: 6px;
  border-radius: 999px;
  padding: 3px 7px;
  color: #fff;
  background: rgba(16, 32, 43, 0.76);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}

.detail-panel {
  min-width: 0;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  background: #fff;
  box-shadow: var(--shadow);
  overflow-wrap: anywhere;
}

.product-overview {
  display: grid;
  gap: 22px;
  align-self: start;
  padding: 28px;
}

.product-title-block {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.product-detail-title {
  margin: 4px 0 0;
  color: var(--ink);
  font-size: 34px;
  line-height: 1.18;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.overview-head {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.overview-head h2 {
  margin: 4px 0 12px;
  color: var(--ink);
  font-size: 28px;
  line-height: 1.26;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.overview-head p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.72;
}

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

.overview-metrics div {
  min-height: 86px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #f7fafb;
}

.overview-metrics span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.overview-metrics strong {
  color: var(--brand);
  font-size: 17px;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.product-spec-section {
  padding: 74px 0;
  background: var(--soft);
}

.spec-panel {
  padding: 26px;
}

.package-head {
  margin-top: 34px;
}

.package-panel {
  padding: 24px 26px 26px;
}

.param-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 20px;
  table-layout: fixed;
}

.param-table-pairs {
  border: 1px solid var(--line);
  margin-bottom: 0;
}

.param-table th,
.param-table td {
  border: 1px solid var(--line);
  padding: 13px 14px;
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

.param-table th {
  width: 142px;
  color: #40616b;
  background: #f7fafb;
  font-weight: 800;
}

.param-table td {
  color: #263b45;
}

.package-subtitle {
  margin: -4px 0 14px;
  color: #40616b;
  font-size: 16px;
  line-height: 1.3;
  font-weight: 850;
}

.package-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.package-table th,
.package-table td {
  border: 1px solid var(--line);
  padding: 14px 16px;
  text-align: left;
  overflow-wrap: anywhere;
}

.package-table th {
  color: #263844;
  background: #eef2f4;
  font-weight: 850;
}

.product-description-section {
  margin-top: 0;
  background: #fff;
}

.product-description-panel {
  padding: 34px;
}

.rich-text {
  color: #304550;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.rich-text * {
  max-width: 100%;
  box-sizing: border-box;
}

.rich-text img,
.rich-text video,
.rich-text iframe,
.rich-text embed,
.rich-text object {
  display: block;
  width: auto !important;
  max-width: 100%;
  height: auto;
  box-sizing: border-box;
}

.rich-text table {
  display: block;
  width: max-content;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
}

.rich-text th,
.rich-text td {
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.product-detail-images {
  display: grid;
  justify-items: center;
  gap: 0;
}

.product-detail-images img {
  display: block;
  width: min(100%, 790px);
  height: auto;
}

.footer {
  padding: 38px 0;
  color: rgba(255, 255, 255, 0.72);
  background: #10202b;
  font-size: 14px;
}

.footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.mobile-bar {
  display: none;
}

@media (max-width: 980px) {
  .top-strip,
  .phone,
  .nav {
    display: none;
  }

  .header .wrap {
    height: 68px;
    gap: 12px;
  }

  .brand {
    min-width: 0;
    max-width: 100%;
    flex: 1;
    gap: 10px;
    overflow: hidden;
  }

  .brand-logo {
    width: 58px;
    height: 58px;
    flex: 0 0 58px;
  }

  .brand-name {
    min-width: 0;
    overflow: hidden;
  }

  .brand-name strong {
    display: block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .brand-name span {
    display: none;
  }

  .header-actions {
    display: none;
    min-width: 0;
  }

  .hero .wrap,
  .detail-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .hero-panel {
    align-self: auto;
    margin-bottom: 0;
  }

  .hero-metrics,
  .category-strip .wrap,
  .product-grid,
  .cert-row,
  .article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .strength-layout,
  .contact-box,
  .contact-layout,
  .catalog-shell,
  .catalog-toolbar {
    grid-template-columns: 1fr;
  }

  .catalog-sidebar {
    position: static;
  }

  .catalog-search {
    justify-content: start;
  }

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

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

@media (max-width: 640px) {
  .wrap {
    width: min(100% - 28px, 1180px);
  }

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

  .hero {
    min-height: auto;
  }

  .hero .wrap {
    min-height: auto;
    padding: 46px 0 78px;
  }

  h1,
  .page-hero h1 {
    font-size: 37px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .hero-metrics,
  .category-strip .wrap,
  .product-grid,
  .cert-row,
  .visit-grid,
  .phone-panel,
  .article-grid,
  .catalog-nav,
  .catalog-grid,
  .catalog-actions {
    grid-template-columns: 1fr;
  }

  .catalog-toolbar,
  .catalog-summary {
    padding: 20px;
  }

  .catalog-summary {
    display: grid;
  }

  .catalog-search {
    display: grid;
    grid-template-columns: 1fr;
  }

  .catalog-sort {
    display: grid;
    grid-template-columns: 1fr;
  }

  .catalog-sort span {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .catalog-sort span:last-child {
    border-bottom: 0;
  }

  .catalog-media {
    height: 220px;
  }

  .catalog-meta {
    grid-template-columns: 1fr;
  }

  .catalog-meta .meta-wide {
    grid-column: auto;
  }

  .section-head {
    display: grid;
  }

  .section-head h2,
  .contact-info h2 {
    font-size: 24px;
  }

  .strength-visual {
    min-height: 380px;
  }

  .contact-basic,
  .detail-panel {
    padding: 20px;
  }

  .contact-basic,
  .contact-map-panel,
  .contact-data,
  .map-frame {
    width: 100%;
    min-width: 0;
    max-width: 100%;
  }

  .contact-basic {
    padding: 0;
  }

  .contact-data div {
    display: grid;
    min-width: 0;
  }

  .contact-data dd,
  .contact-qr-row dd {
    min-width: 0;
    max-width: 100%;
  }

  .contact-box {
    gap: 18px;
    padding: 22px 20px;
  }

  .phone-panel {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    min-width: 0;
  }

  .qr-placeholder,
  .qr-image {
    width: 96px;
    height: 96px;
  }

  .map-frame {
    min-height: 260px;
  }

  .detail-layout {
    gap: 22px;
  }

  .application-detail-section {
    padding: 42px 0 54px;
  }

  .application-detail-layout {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .application-side {
    position: static;
    order: -1;
  }

  .application-thumb {
    aspect-ratio: 16 / 9;
  }

  .detail-panel.application-detail-panel {
    padding: 24px;
  }

  .application-detail-panel h2 {
    font-size: 24px;
  }

  .application-lead {
    font-size: 15px;
  }

  .product-showcase {
    padding: 42px 0 34px;
  }

  .detail-media {
    gap: 10px;
  }

  .product-gallery {
    padding: 10px;
  }

  .product-gallery-stage {
    aspect-ratio: 1.08 / 1;
  }

  .product-gallery-thumbs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
  }

  .product-overview {
    padding: 22px;
  }

  .product-detail-title {
    font-size: 27px;
  }

  .overview-head h2 {
    font-size: 24px;
  }

  .overview-metrics {
    grid-template-columns: 1fr;
  }

  .product-spec-section {
    padding: 44px 0;
  }

  .spec-panel,
  .package-panel {
    padding: 20px;
  }

  .param-table {
    font-size: 14px;
  }

  .param-table-pairs,
  .param-table-pairs tbody,
  .param-table-pairs tr,
  .param-table-pairs th,
  .param-table-pairs td {
    display: block;
    width: 100%;
  }

  .param-table-pairs tr {
    border-bottom: 1px solid var(--line);
  }

  .param-table-pairs tr:last-child {
    border-bottom: 0;
  }

  .param-table th,
  .param-table td {
    padding: 10px 12px;
  }

  .param-table-pairs th,
  .param-table-pairs td {
    border-width: 0 0 1px;
  }

  .param-table-pairs td:nth-child(4),
  .param-table-pairs td[colspan] {
    border-bottom: 0;
  }

  .package-table {
    font-size: 14px;
  }

  .product-description-panel {
    padding: 22px;
  }

  .phone-number {
    font-size: 23px;
    overflow-wrap: anywhere;
  }

  .footer {
    padding-bottom: 86px;
  }

  .footer .wrap {
    display: grid;
  }

  .mobile-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    max-width: 100vw;
    z-index: 40;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    background: #fff;
    border-top: 1px solid var(--line);
    box-shadow: 0 -10px 28px rgba(16, 32, 43, 0.08);
  }

  .mobile-bar a {
    min-height: 56px;
    display: grid;
    place-items: center;
    color: var(--brand);
    font-size: 14px;
    font-weight: 800;
    border-right: 1px solid var(--line);
  }

  .mobile-bar a:last-child {
    color: #fff;
    background: var(--brand);
    border-right: 0;
  }
}