:root {
  --blue: #0071bc;
  --blue-dark: #005493;
  --orange: #eb6100;
  --ink: #222222;
  --muted: #666666;
  --pale: #f5f8fb;
  --line: #e6edf3;
  --deep: #071b2f;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  background: var(--white);
  letter-spacing: 0;
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 82px;
  padding: 0 clamp(20px, 5vw, 78px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(230, 237, 243, 0.94);
  backdrop-filter: blur(14px);
}

.brand img {
  width: 232px;
  height: auto;
  max-height: 52px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.8vw, 42px);
  color: #333333;
  font-size: 15px;
}

.main-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 82px;
}

.main-nav a::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  content: "";
  background: var(--blue);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.main-nav a:hover {
  color: var(--blue);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  transform: scaleX(1);
}

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

.nav-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 82px;
}

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 82px;
  cursor: pointer;
}

.nav-dropdown-toggle::after {
  content: "";
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  margin-top: 2px;
}

.nav-dropdown-toggle::before {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  content: "";
  background: var(--blue);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.nav-dropdown:hover .nav-dropdown-toggle {
  color: var(--blue);
}

.nav-dropdown:hover .nav-dropdown-toggle::before,
.nav-dropdown.active > .nav-dropdown-toggle::before {
  transform: scaleX(1);
}

.nav-dropdown.active > .nav-dropdown-toggle {
  color: var(--blue);
  font-weight: 700;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 140px;
  padding: 8px 0;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(0, 43, 80, 0.12);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 30;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
}

.nav-dropdown-menu a {
  display: block;
  height: auto;
  padding: 10px 20px;
  font-size: 14px;
  white-space: nowrap;
  color: #333333;
}

.nav-dropdown-menu a:hover {
  color: var(--blue);
  background: var(--pale);
}

.nav-dropdown-menu a::after {
  display: none;
}

.nav-dropdown-menu a.active {
  color: var(--blue);
  font-weight: 700;
  background: var(--pale);
}

.header-phone {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 20px;
  color: var(--white);
  font-weight: 700;
  background: var(--blue);
}

.hero {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  color: var(--white);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 22, 42, 0.9) 0%, rgba(2, 42, 76, 0.64) 46%, rgba(2, 42, 76, 0.12) 100%),
    linear-gradient(180deg, rgba(2, 22, 42, 0.1), rgba(2, 22, 42, 0.34));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 44px));
  padding-top: 218px;
  margin-left: clamp(22px, 7vw, 112px);
}

.eyebrow,
.section-title p,
.contact-section p {
  margin: 0 0 16px;
  color: var(--blue);
  font-family: Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
}

.hero .eyebrow {
  color: #79c6ff;
}

.hero h1 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(42px, 5.6vw, 74px);
  line-height: 1.08;
  font-weight: 600;
}

.hero-content p:not(.eyebrow) {
  max-width: 700px;
  margin: 30px 0 38px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  font-weight: 700;
  white-space: nowrap;
}

.btn.primary {
  color: var(--white);
  background: var(--blue);
}

.btn.primary:hover {
  background: var(--blue-dark);
}

.btn.outline {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.72);
}

.btn.outline:hover {
  background: rgba(255, 255, 255, 0.12);
}

.intro-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 1180px;
  margin: -76px auto 0;
  position: relative;
  z-index: 2;
  background: var(--white);
  box-shadow: 0 18px 46px rgba(0, 43, 80, 0.11);
}

.intro-strip div {
  min-height: 150px;
  padding: 34px 36px;
  border-right: 1px solid var(--line);
}

.intro-strip div:last-child {
  border-right: 0;
}

.intro-strip strong {
  display: block;
  margin-bottom: 12px;
  color: var(--blue);
  font-size: 24px;
}

.intro-strip span {
  color: var(--muted);
  line-height: 1.75;
}

.section {
  padding: 102px clamp(22px, 7vw, 96px);
}

.section-title {
  max-width: 760px;
  margin-bottom: 44px;
}

.section-title.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-title h2,
.hydrogen-section h2,
.contact-section h2 {
  margin: 0;
  font-size: clamp(30px, 3.4vw, 48px);
  line-height: 1.25;
  font-weight: 600;
}

.section-title span,
.about-copy p,
.family-content p,
.large-card p,
.service-list span,
.capacity-grid p,
.hydrogen-section p,
.news-card p,
.contact-section span,
.contact-section li,
.site-footer p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: clamp(36px, 6vw, 82px);
  align-items: center;
}

.about-copy {
  padding-left: 28px;
  border-left: 4px solid var(--blue);
}

.about-copy p {
  margin: 0 0 18px;
  font-size: 17px;
}

/* about-copy内部图文左右布局 */
.copy-inner {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  align-items: start;
}
.copy-img img {
  width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
}

/* 移动端自动变成上下排列，和全站响应式统一 */
@media (max-width: 860px) {
  .copy-inner {
    grid-template-columns: 1fr;
  }
  .copy-img {
    margin-top: 20px;
  }
}

.about-media {
  margin: 0;
  background: var(--pale);
}

.about-media img {
  width: 100%;
  aspect-ratio: 1.18 / 1;
  object-fit: cover;
}

.light-section {
  background: var(--pale);
}

.product-families {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  max-width: 1240px;
  margin: 0 auto;
}

.product-family {
  display: grid;
  grid-template-columns: minmax(180px, 0.45fr) minmax(0, 1fr);
  min-height: 342px;
  background: var(--white);
  border: 1px solid var(--line);
}

.product-family.featured,
.product-family.wide {
  grid-column: 1 / -1;
  grid-template-columns: minmax(320px, 0.5fr) minmax(0, 1fr);
}

.product-family img {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
  background: #d9e5ee;
}

.family-content {
  display: flex;
  flex-direction: column;
  padding: 30px 28px 32px;
}

.family-content span {
  display: block;
  margin-bottom: 14px;
  color: var(--orange);
  font-family: Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.8px;
}

.family-content h3,
.capacity-grid h3,
.news-card h3 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.35;
  font-weight: 600;
}

.family-content p,
.capacity-grid p,
.news-card p {
  margin: 0;
}

.family-content ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 14px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

.family-content li {
  position: relative;
  min-height: 42px;
  padding: 10px 12px 10px 28px;
  color: #3c4650;
  font-size: 15px;
  line-height: 1.45;
  background: var(--pale);
  border: 1px solid var(--line);
}

.family-content li::before {
  position: absolute;
  top: 18px;
  left: 12px;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--blue);
}

.family-link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  min-height: 42px;
  padding: 0 18px;
  margin-top: 24px;
  color: var(--white);
  font-weight: 700;
  background: var(--blue);
}

.family-link:hover {
  background: var(--blue-dark);
}

.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 0.72fr);
  gap: clamp(34px, 6vw, 78px);
  align-items: center;
  min-height: 560px;
  padding: 142px clamp(22px, 7vw, 96px) 72px;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(3, 27, 50, 0.95), rgba(0, 83, 148, 0.72)),
    url("./assets/ppt-media/image9.png") center / cover;
}

.product-hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(38px, 5vw, 66px);
  line-height: 1.12;
  font-weight: 600;
}

.product-hero p:not(.eyebrow) {
  max-width: 780px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 18px;
  line-height: 1.9;
}

.product-hero img {
  width: 100%;
  aspect-ratio: 1.22 / 1;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.page-banner {
  display: flex;
  align-items: center;
  min-height: 260px;
  padding: 100px clamp(22px, 7vw, 96px) 54px;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(3, 27, 50, 0.95), rgba(0, 83, 148, 0.72)),
    url("./assets/ppt-media/image9.png") center / cover;
}

.page-banner h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.15;
  font-weight: 600;
}

.page-banner p:not(.eyebrow) {
  max-width: 700px;
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 17px;
  line-height: 1.9;
}

@media (max-width: 860px) {
  .page-banner {
    padding-top: 120px;
    min-height: 220px;
  }
}

@media (max-width: 560px) {
  .page-banner {
    padding-top: 110px;
    min-height: 200px;
  }

  .page-banner h1 {
    font-size: 30px;
  }

  .page-banner p:not(.eyebrow) {
    font-size: 15px;
  }
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.breadcrumb a {
  color: var(--white);
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr);
  gap: clamp(34px, 6vw, 72px);
  align-items: start;
  max-width: 1220px;
  margin: 0 auto;
}

.detail-lead {
  position: sticky;
  top: 116px;
  padding-left: 26px;
  border-left: 4px solid var(--blue);
}

.detail-lead h2 {
  margin: 0 0 18px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.25;
  font-weight: 600;
}

.detail-lead p,
.detail-card p,
.spec-list li,
.case-strip p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.detail-card-grid {
  display: grid;
  gap: 18px;
}

.detail-card {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
}

.detail-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--orange);
  font-family: Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
}

.detail-card h3 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.35;
}

.detail-card p {
  margin: 0;
}

.spec-section {
  max-width: 1220px;
  margin: 0 auto;
}

.spec-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding: 0;
  margin: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.spec-list li {
  min-height: 132px;
  padding: 26px;
  background: var(--white);
}

.spec-list strong {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 19px;
}

.case-strip {
  display: grid;
  grid-template-columns: minmax(300px, 0.72fr) minmax(0, 1fr);
  gap: 36px;
  align-items: center;
  max-width: 1220px;
  margin: 0 auto;
}

.case-strip img {
  width: 100%;
  aspect-ratio: 1.5 / 1;
  object-fit: cover;
  background: #d9e5ee;
}

.case-strip h2 {
  margin: 0 0 18px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.25;
  font-weight: 600;
}

.case-strip p {
  margin: 0 0 24px;
}

.engineering-section {
  background: var(--white);
}

.engineering-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.78fr) minmax(360px, 1fr);
  gap: 48px;
}

.large-card {
  min-height: 360px;
  padding: clamp(34px, 5vw, 58px);
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(0, 113, 188, 0.95), rgba(5, 42, 76, 0.95)),
    url("./assets/source/1686560800banner.jpg") center / cover;
}

.large-card p {
  margin: 0 0 30px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: var(--white);
  font-weight: 700;
  border-bottom: 2px solid var(--orange);
}

.service-list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.service-list div {
  padding: 34px;
  background: var(--white);
}

.service-list strong {
  display: block;
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 23px;
}

.data-section {
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(7, 27, 47, 0.94), rgba(0, 83, 148, 0.88)),
    url("./assets/ppt-media/image9.png") center / cover;
}

.data-section .section-title h2 {
  color: var(--white);
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  max-width: 1160px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.data-grid span {
  display: grid;
  place-items: center;
  min-height: 128px;
  padding: 24px;
  text-align: center;
  background: rgba(255, 255, 255, 0.06);
}

.capacity-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  max-width: 1180px;
  margin: 0 auto;
}

.applications-section {
  background: var(--white);
}

.application-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 1180px;
  margin: 0 auto;
  background: var(--line);
  border: 1px solid var(--line);
}

.application-band article {
  background: var(--white);
}

.application-band img {
  width: 100%;
  aspect-ratio: 1.52 / 1;
  object-fit: cover;
  background: #d9e5ee;
}

.application-band h3 {
  margin: 28px 26px 12px;
  color: var(--ink);
  font-size: 23px;
  font-weight: 600;
}

.application-band p {
  margin: 0;
  padding: 0 26px 30px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.capacity-grid article {
  background: var(--white);
  border: 1px solid var(--line);
}

.capacity-grid img {
  width: 100%;
  aspect-ratio: 1.48 / 1;
  object-fit: cover;
  background: #d9e5ee;
}

.capacity-grid h3,
.capacity-grid p {
  padding-right: 26px;
  padding-left: 26px;
}

.capacity-grid h3 {
  margin-top: 26px;
}

.capacity-grid p {
  padding-bottom: 30px;
}

.hydrogen-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 48px;
  align-items: center;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(3, 27, 50, 0.95), rgba(0, 113, 188, 0.82)),
    url("./assets/ppt-media/image49.png") center / cover;
}

.eyebrow.dark {
  color: #79c6ff;
}

.hydrogen-section p {
  max-width: 790px;
  color: rgba(255, 255, 255, 0.8);
}

.hydrogen-card {
  padding: 34px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hydrogen-card span {
  display: block;
  margin-bottom: 18px;
  color: var(--orange);
  font-family: Arial, sans-serif;
  font-size: 46px;
  font-weight: 700;
}

.hydrogen-card strong {
  display: block;
  font-size: 22px;
}

.news-section {
  background: var(--white);
}

.news-card {
  display: block;
  max-width: 940px;
  padding: 36px 42px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.news-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
}

.news-card time {
  display: block;
  margin-bottom: 12px;
  color: var(--orange);
  font-family: Arial, sans-serif;
  font-weight: 700;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.72fr);
  gap: 54px;
  padding: 92px clamp(22px, 7vw, 96px);
  background: var(--pale);
}

.contact-section ul {
  display: grid;
  gap: 1px;
  padding: 0;
  margin: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.contact-section li {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 18px;
  align-items: center;
  min-height: 66px;
  padding: 18px 24px;
  background: var(--white);
}

.contact-section strong {
  color: var(--blue);
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
}

.partner-item img {
  max-width: 100%;
  max-height: 80px;
  object-fit: contain;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(22px, 7vw, 96px);
  color: rgba(255, 255, 255, 0.78);
  background: #051526;
}

.site-footer strong,
.site-footer span {
  display: block;
}

.site-footer strong {
  color: var(--white);
  font-size: 18px;
}

.site-footer span {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.52);
  font-family: Arial, sans-serif;
  font-size: 12px;
  letter-spacing: 1.6px;
}

.site-footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
}

@media (max-width: 1080px) {
  .main-nav {
    gap: 18px;
  }

  .header-phone {
    display: none;
  }

  .product-families {
    grid-template-columns: 1fr;
  }

  .product-family,
  .product-family.featured,
  .product-family.wide {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .product-family img {
    height: auto;
    min-height: 0;
    aspect-ratio: 1.8 / 1;
  }
}

@media (max-width: 860px) {
  .site-header {
    height: auto;
    min-height: 76px;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .brand img {
    width: 184px;
  }

  .main-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    gap: 16px;
    font-size: 14px;
  }

  .main-nav a {
    height: 34px;
    white-space: nowrap;
  }

  .nav-dropdown {
    height: 34px;
  }

  .nav-dropdown-toggle {
    height: 34px;
  }

  .nav-dropdown-menu {
    position: fixed;
    top: auto;
    left: 0;
    right: 0;
    transform: none;
    min-width: 0;
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 10px 16px;
    border-top: 1px solid var(--line);
    border-radius: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
  }

  .nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
  }

  .hero {
    min-height: 710px;
  }

  .hero-content {
    padding-top: 190px;
  }

  .intro-strip,
  .about-grid,
  .product-hero,
  .detail-layout,
  .case-strip,
  .engineering-layout,
  .application-band,
  .capacity-grid,
  .hydrogen-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .intro-strip {
    margin: 0;
  }

  .intro-strip div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

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

  .product-hero {
    padding-top: 176px;
  }

  .detail-lead {
    position: static;
  }

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

@media (max-width: 560px) {
  .hero {
    min-height: 660px;
  }

  .hero-content {
    width: calc(100% - 36px);
    padding-top: 172px;
    margin-left: 18px;
  }

  .hero h1 {
    font-size: 38px;
    line-height: 1.12;
  }

  .hero-content p:not(.eyebrow) {
    font-size: 16px;
  }

  .section,
  .contact-section {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .product-families,
  .data-grid {
    grid-template-columns: 1fr;
  }

  .family-content {
    padding: 26px 22px 28px;
  }

  .family-content ul {
    grid-template-columns: 1fr;
  }

  .product-hero {
    padding-top: 184px;
  }

  .product-hero h1 {
    font-size: 36px;
  }

  .product-hero p:not(.eyebrow) {
    font-size: 16px;
  }

  .spec-list {
    grid-template-columns: 1fr;
  }

  .contact-section li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .site-footer {
    display: grid;
  }

}