:root {
  color-scheme: light;
  --ink: #142033;
  --muted: #667085;
  --line: #d7dfe8;
  --paper: #ffffff;
  --soft: #f4f8fb;
  --brand: #0066b3;
  --brand-2: #00a6c8;
  --accent: #f2b705;
  --green: #1f8f6b;
  --shadow: 0 20px 50px rgba(13, 33, 57, 0.14);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
}

main section[id] {
  scroll-margin-top: 82px;
}

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

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

button {
  font: inherit;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 12px clamp(18px, 4vw, 64px);
  color: #fff;
  transition: background 180ms ease, box-shadow 180ms ease;
}

.site-header.is-solid {
  background: rgba(9, 27, 47, 0.94);
  box-shadow: 0 12px 28px rgba(4, 18, 31, 0.22);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 138px;
  height: 38px;
}

.brand-mark img {
  width: 138px;
  height: auto;
}

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

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.5vw, 34px);
  font-size: 15px;
}

.main-nav a {
  opacity: 0.88;
  transition: opacity 160ms ease, color 160ms ease;
}

.main-nav a:hover {
  color: #aee9ff;
  opacity: 1;
}

.main-nav a.is-current:not(.nav-contact) {
  color: #fff;
  opacity: 1;
}

.main-nav a.is-current:not(.nav-contact)::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 7px;
  background: var(--accent);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: #fff;
}

.hero {
  position: relative;
  min-height: min(82vh, 760px);
  padding: 136px clamp(20px, 7vw, 110px) 92px;
  color: #fff;
  overflow: hidden;
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.035);
  transition: opacity 700ms ease, transform 1600ms ease;
}

.hero-media img.is-active {
  opacity: 1;
  transform: scale(1);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(5, 18, 32, 0.9), rgba(3, 34, 57, 0.58) 47%, rgba(3, 33, 55, 0.2)),
    linear-gradient(0deg, rgba(4, 20, 34, 0.42), transparent 35%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(720px, 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand-2);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #8ee9ff;
}

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

h1 {
  margin-bottom: 20px;
  font-size: clamp(36px, 6vw, 70px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(28px, 3.5vw, 46px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 620px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(17px, 2vw, 22px);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 24px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

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

.button-primary {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 12px 24px rgba(0, 102, 179, 0.26);
}

.button-outline {
  border-color: var(--line);
  color: var(--ink);
  background: #fff;
}

.button-ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.1);
}

.hero-dots {
  position: absolute;
  z-index: 3;
  left: clamp(20px, 7vw, 110px);
  bottom: 34px;
  display: flex;
  gap: 10px;
}

.hero-dots button {
  width: 34px;
  height: 4px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
}

.hero-dots button.is-active {
  background: var(--accent);
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
}

.stats-strip div {
  display: grid;
  min-height: 112px;
  place-items: center;
  padding: 22px 14px;
  background: #fff;
  text-align: center;
}

.stats-strip strong {
  color: var(--brand);
  font-size: clamp(22px, 2.5vw, 34px);
  line-height: 1.1;
}

.stats-strip span {
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: clamp(62px, 8vw, 108px) clamp(20px, 6vw, 92px);
}

.section-head {
  width: min(780px, 100%);
  margin: 0 auto 38px;
  text-align: center;
}

.section-head p:last-child,
.split-copy p,
.about-copy p {
  color: var(--muted);
}

.products-section {
  background: var(--soft);
}

.catalog-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: 18px;
  align-items: start;
  margin-bottom: 18px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 10px;
}

.filter-bar button {
  min-height: 42px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
}

.filter-bar button.is-active,
.filter-bar button:hover {
  color: #fff;
  border-color: var(--brand);
  background: var(--brand);
}

.catalog-search {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.catalog-search input {
  width: 100%;
  min-height: 44px;
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
  outline: none;
}

.catalog-search input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(0, 102, 179, 0.1);
}

.catalog-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 14px;
}

.catalog-meta strong {
  color: var(--ink);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.product-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.product-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 102, 179, 0.32);
  box-shadow: var(--shadow);
}

.product-card.is-hidden {
  display: none;
}

.product-image {
  position: relative;
  aspect-ratio: 1 / 0.82;
  background: #f7fafc;
  overflow: hidden;
}

.product-badge {
  position: absolute;
  top: 11px;
  left: 11px;
  padding: 4px 8px;
  color: var(--brand);
  border: 1px solid #d5e5f3;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.94);
  font-size: 11px;
  font-weight: 800;
}

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

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 14px;
  transition: transform 240ms ease;
}

.product-card:hover .product-image img {
  transform: scale(1.04);
}

.product-info {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 18px;
}

.product-info span,
.news-feature span,
.news-list span,
.contact-grid span {
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
}

.product-info h3 {
  min-height: 54px;
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.product-info p {
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 14px;
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.product-specs {
  display: grid;
  gap: 7px;
  min-height: 61px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid #edf1f5;
}

.product-specs:empty {
  display: none;
}

.product-specs span {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 8px;
  margin: 0;
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
}

.product-specs b {
  color: var(--muted);
  font-weight: 600;
}

.load-more {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  margin: 30px auto 0;
  padding: 10px 26px;
  border: 1px solid var(--brand);
  border-radius: 6px;
  color: var(--brand);
  background: #fff;
  cursor: pointer;
  font-weight: 800;
}

.load-more:hover {
  color: #fff;
  background: var(--brand);
}

.load-more[hidden] {
  display: none;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
  background: #fff;
}

.split-copy {
  max-width: 570px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  font-weight: 700;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(242, 183, 5, 0.16);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.solution-grid article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.solution-grid img {
  width: 100%;
  aspect-ratio: 1.28 / 1;
  object-fit: cover;
  background: #f7fafc;
}

.solution-grid h3,
.solution-grid p {
  padding: 0 18px;
}

.solution-grid h3 {
  margin-top: 18px;
}

.solution-grid p {
  margin-bottom: 20px;
  color: var(--muted);
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}

.service-section {
  background:
    linear-gradient(135deg, rgba(0, 102, 179, 0.08), rgba(31, 143, 107, 0.08)),
    #f8fbfd;
}

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

.service-item {
  min-height: 230px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
}

.service-item strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 24px;
  border-radius: 6px;
  color: #fff;
  background: var(--brand);
}

.service-item p {
  color: var(--muted);
}

.news-section {
  background: #fff;
}

.news-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: -12px 0 28px;
}

.news-tabs button {
  min-height: 40px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
  font-weight: 700;
}

.news-tabs button.is-active,
.news-tabs button:hover {
  color: #fff;
  border-color: var(--green);
  background: var(--green);
}

.news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 24px;
}

.news-feature {
  display: grid;
  grid-template-columns: 1fr;
  align-self: start;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.news-feature img {
  width: 100%;
  height: 280px;
  min-height: 0;
  padding: 18px;
  object-fit: contain;
  background: #f7fafc;
}

.news-feature div {
  padding: clamp(24px, 4vw, 42px);
}

.news-feature p {
  color: var(--muted);
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}

.news-list {
  display: grid;
  gap: 14px;
}

.news-list a {
  display: grid;
  min-height: 104px;
  align-content: center;
  gap: 6px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.news-list a:hover {
  border-color: rgba(0, 102, 179, 0.35);
  box-shadow: 0 14px 28px rgba(13, 33, 57, 0.08);
}

.about-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
  background: #f7fafc;
}

.about-media {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.about-media img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}

.about-copy {
  max-width: 980px;
}

.about-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.about-points span {
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  font-size: 14px;
  font-weight: 700;
}

.contact-section {
  padding: clamp(56px, 7vw, 90px) clamp(20px, 6vw, 92px);
  color: #fff;
  background:
    linear-gradient(120deg, rgba(0, 86, 148, 0.94), rgba(0, 116, 139, 0.9)),
    url("./assets/9f997f1c20740677001a6f12cc34b7e6.jpg") center / cover;
}

.contact-content {
  width: min(1050px, 100%);
  margin: 0 auto;
}

.contact-section .eyebrow {
  color: #f9d867;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.1fr 1.2fr;
  gap: 14px;
  margin-top: 26px;
}

.contact-grid div {
  display: grid;
  align-content: start;
  gap: 6px;
  min-height: 116px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}

.contact-grid span {
  color: #f9d867;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 22px clamp(20px, 6vw, 92px);
  color: #d8e8f7;
  background: #0b1f33;
  font-size: 14px;
}

.site-footer a {
  color: #fff;
  font-weight: 700;
}

.footer-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 16px;
}

.product-modal {
  position: fixed;
  z-index: 50;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
}

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

.modal-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(5, 16, 28, 0.72);
}

.modal-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(300px, 0.78fr) minmax(420px, 1.22fr);
  width: min(1120px, 100%);
  max-height: min(90vh, 850px);
  overflow: auto;
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.modal-panel img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: contain;
  padding: 24px;
  background: #f7fafc;
}

.modal-copy {
  padding: clamp(26px, 4vw, 42px);
}

.modal-copy span {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--green);
  font-weight: 800;
}

.modal-copy p {
  color: var(--muted);
}

.modal-specs {
  margin: 26px 0;
}

.modal-specs h4 {
  margin: 0 0 13px;
  font-size: 16px;
}

.modal-specs dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 18px;
  margin: 0;
  border-top: 1px solid var(--line);
}

.modal-specs div {
  display: grid;
  grid-template-columns: minmax(82px, 0.9fr) minmax(88px, 1fr);
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.modal-specs dt {
  color: var(--muted);
}

.modal-specs dd {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 6px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.86);
  cursor: pointer;
  font-size: 28px;
  line-height: 1;
}

@media (max-width: 1100px) {
  .product-grid,
  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-section,
  .about-section,
  .news-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-header {
    min-height: 64px;
    padding: 10px 16px;
  }

  .brand-mark {
    width: 108px;
  }

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

  .brand-text {
    font-size: 15px;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 64px;
    left: 12px;
    right: 12px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 8px;
    background: rgba(9, 27, 47, 0.98);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    padding: 14px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .main-nav a:last-child {
    border-bottom: 0;
  }

  .hero {
    min-height: 650px;
    padding: 112px 20px 88px;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(5, 18, 32, 0.88), rgba(4, 27, 44, 0.58)),
      linear-gradient(0deg, rgba(4, 20, 34, 0.5), transparent 34%);
  }

  .hero-dots {
    left: 20px;
  }

  .stats-strip,
  .catalog-toolbar,
  .product-grid,
  .solution-grid,
  .service-grid,
  .contact-grid,
  .news-feature,
  .modal-panel {
    grid-template-columns: 1fr;
  }

  .stats-strip div {
    min-height: 88px;
  }

  .section {
    padding: 58px 18px;
  }

  .section-head {
    text-align: left;
  }

  .product-info h3 {
    min-height: 0;
  }

  .news-feature img,
  .modal-panel img {
    min-height: 250px;
  }

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

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Refined corporate presentation */
.eyebrow {
  letter-spacing: 0;
}

.site-header {
  min-height: 78px;
  padding: 0 clamp(18px, 4vw, 52px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  width: min(1360px, 100%);
  margin: 0 auto;
}

.site-header.is-solid {
  background: rgba(10, 25, 40, 0.96);
}

.main-nav {
  gap: clamp(16px, 2vw, 28px);
}

.nav-contact {
  min-height: 42px;
  padding: 8px 17px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 6px;
  opacity: 1 !important;
}

.nav-contact:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.hero {
  min-height: min(86vh, 820px);
  padding: clamp(142px, 15vh, 178px) max(calc((100% - 1360px) / 2), clamp(20px, 5vw, 58px)) 116px;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(8, 23, 38, 0.94), rgba(8, 32, 51, 0.7) 47%, rgba(8, 32, 51, 0.18)),
    linear-gradient(0deg, rgba(5, 19, 32, 0.56), transparent 40%);
}

.hero-content {
  width: min(780px, 100%);
}

.hero h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(38px, 5.1vw, 62px);
}

.hero-copy {
  max-width: 600px;
  margin-bottom: 34px;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.8;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 54px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
  font-weight: 700;
}

.hero-proof span {
  position: relative;
  padding-left: 18px;
}

.hero-proof span::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--accent);
}

.hero-dots {
  bottom: 76px;
}

.stats-strip {
  position: relative;
  z-index: 4;
  width: min(1280px, calc(100% - 48px));
  margin: -48px auto 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  box-shadow: 0 18px 40px rgba(13, 33, 57, 0.1);
}

.stats-strip div {
  min-height: 112px;
  align-content: center;
  gap: 8px;
}

.stats-strip strong {
  font-size: clamp(26px, 2.4vw, 32px);
}

.section {
  padding: clamp(64px, 7vw, 94px) clamp(20px, 5vw, 56px);
}

.section > *,
.contact-content {
  width: min(1320px, 100%);
  margin-left: auto;
  margin-right: auto;
}

.section-head {
  margin-bottom: 42px;
}

.service-section .section-head,
.news-section .section-head {
  width: min(780px, 100%);
}

.section-head h2 {
  font-size: clamp(29px, 3vw, 40px);
}

.products-section .section-head,
.solution-heading {
  width: min(1320px, 100%);
  text-align: left;
}

.products-section .section-head p:last-child,
.solution-heading p:last-child {
  max-width: 720px;
}

.catalog-toolbar {
  position: sticky;
  z-index: 5;
  top: 90px;
  align-items: end;
  margin-bottom: 16px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 22px rgba(13, 33, 57, 0.05);
  backdrop-filter: blur(10px);
}

.catalog-meta {
  margin-bottom: 24px;
  padding: 0 4px;
}

.catalog-meta b {
  color: var(--brand);
  font-weight: 800;
}

.product-grid {
  gap: 16px;
}

.product-card {
  border-color: #dce4ec;
  box-shadow: 0 3px 12px rgba(17, 36, 55, 0.03);
}

.product-image {
  aspect-ratio: 1 / 0.76;
  border-bottom: 1px solid #edf2f6;
  background: #f8fafc;
}

.product-info {
  padding: 16px;
}

.product-info h3 {
  min-height: 50px;
  margin: 8px 0 9px;
  font-size: 17px;
}

.product-info p {
  -webkit-line-clamp: 2;
  font-size: 13px;
  line-height: 1.6;
}

.product-specs {
  background: #f7fafc;
  margin: auto -16px -16px;
  padding: 12px 16px 14px;
}

.solutions-section {
  background: #fff;
}

.solution-heading {
  margin-bottom: 38px;
}

.solutions-layout {
  display: grid;
  grid-template-columns: minmax(260px, 318px) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.solution-aside {
  position: sticky;
  top: 98px;
  padding: 28px 26px;
  border-top: 3px solid var(--brand);
  border-radius: 0 0 8px 8px;
  background: #f3f7fa;
}

.solution-aside h3 {
  font-size: 22px;
}

.solution-aside p {
  color: var(--muted);
  font-size: 14px;
}

.solution-aside .button {
  width: 100%;
  margin-top: 28px;
}

.check-list {
  gap: 13px;
  margin-top: 25px;
}

.check-list li {
  font-size: 14px;
}

.solution-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.solution-grid .solution-card {
  overflow: hidden;
  border: 1px solid #dde5ed;
  border-radius: 8px;
  background: #fff;
  transition: border-color 170ms ease, box-shadow 170ms ease, transform 170ms ease;
}

.solution-grid .solution-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 102, 179, 0.3);
  box-shadow: 0 12px 26px rgba(17, 36, 55, 0.09);
}

.solution-media {
  position: relative;
  overflow: hidden;
}

.solution-grid .solution-media img {
  aspect-ratio: 1.42 / 1;
  transition: transform 230ms ease;
}

.solution-card:hover img {
  transform: scale(1.035);
}

.solution-media span {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 5px 9px;
  color: #fff;
  background: rgba(6, 36, 57, 0.82);
  font-size: 12px;
  font-weight: 700;
}

.solution-card-copy {
  padding: 16px 16px 18px;
}

.solution-grid .solution-card h3,
.solution-grid .solution-card p {
  padding: 0;
}

.solution-grid .solution-card h3 {
  min-height: 47px;
  margin: 0 0 8px;
  font-size: 16px;
}

.solution-grid .solution-card p {
  margin: 0;
  font-size: 13px;
  -webkit-line-clamp: 3;
}

.service-section {
  border-top: 1px solid #e9eef3;
  border-bottom: 1px solid #e9eef3;
  background: #f6f9fb;
}

.service-item {
  min-height: 216px;
  padding: 24px;
  border-color: #dde5ed;
  background: #fff;
}

.service-item strong {
  margin-bottom: 20px;
  color: var(--brand);
  background: #eaf3fa;
}

.news-section {
  background: #fff;
}

.news-layout {
  gap: 18px;
}

.news-feature,
.news-list a {
  border-color: #dde5ed;
}

.news-feature div {
  padding: clamp(22px, 3vw, 34px);
}

.about-section {
  background: #f5f8fa;
}

.contact-section {
  padding: clamp(58px, 7vw, 84px) clamp(20px, 5vw, 56px);
  background:
    linear-gradient(104deg, rgba(6, 37, 61, 0.96), rgba(0, 103, 137, 0.9)),
    url("./assets/9f997f1c20740677001a6f12cc34b7e6.jpg") center / cover;
}

.contact-head {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(300px, 1fr);
  gap: 56px;
  align-items: end;
  margin-bottom: 32px;
}

.contact-head h2 {
  margin-bottom: 0;
}

.contact-head > p {
  margin-bottom: 7px;
  color: rgba(255, 255, 255, 0.78);
}

.contact-grid div {
  min-height: 108px;
  background: rgba(255, 255, 255, 0.06);
}

@media (max-width: 1140px) {
  .solution-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ===== 研发测试与制造能力（新版块） ===== */

.capability-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 26px;
}

.capability-stats div {
  display: grid;
  gap: 4px;
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  text-align: center;
}

.capability-stats strong {
  color: var(--brand);
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.1;
}

.capability-stats span {
  color: var(--muted);
  font-size: 14px;
}

.chamber-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 40px;
}

.chamber-card {
  position: relative;
  overflow: hidden;
  padding: 30px 28px 26px;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(135deg, #0b2a45, #0e4d74 58%, #0a6a86);
  box-shadow: var(--shadow);
}

.chamber-card::after {
  content: "";
  position: absolute;
  right: -46px;
  bottom: -58px;
  width: 190px;
  height: 190px;
  border: 26px solid rgba(255, 255, 255, 0.07);
  border-radius: 50%;
}

.chamber-tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 12px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  color: #f9d867;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.chamber-card h3 {
  margin-bottom: 8px;
  font-size: 21px;
}

.chamber-card p {
  position: relative;
  z-index: 1;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14.5px;
}

.flow-block {
  margin-bottom: 40px;
}

.block-title {
  margin-bottom: 18px;
  font-size: 19px;
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.flow-steps li {
  position: relative;
  display: grid;
  align-content: start;
  gap: 6px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.flow-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 34px;
  right: -15px;
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--brand-2);
  border-right: 2px solid var(--brand-2);
  transform: rotate(45deg);
}

.flow-steps b {
  color: var(--brand-2);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.flow-steps strong {
  font-size: 16.5px;
}

.flow-steps span {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.55;
}

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.equipment-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.equipment-card h3 {
  margin: 0;
  padding: 16px 22px;
  color: #fff;
  background: var(--brand);
  font-size: 16px;
}

.equipment-card table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.equipment-card td {
  padding: 9px 22px;
  border-bottom: 1px solid #edf1f5;
}

.equipment-card tr:last-child td {
  border-bottom: 0;
}

.equipment-card td:first-child {
  color: var(--ink);
  font-weight: 700;
}

.equipment-card td:nth-child(2) {
  color: var(--muted);
}

.equipment-card td:last-child {
  color: var(--brand);
  font-weight: 800;
  text-align: right;
  white-space: nowrap;
}

/* ===== 关于精华 · 出口面板 ===== */

.export-panel {
  margin-top: 24px;
  padding: 22px 24px;
  border: 1px solid #d5e5f3;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(13, 33, 57, 0.07);
}

.export-lead {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line);
}

.export-lead strong {
  color: var(--brand);
  font-size: 40px;
  line-height: 1;
}

.export-lead span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.export-terms {
  display: grid;
  gap: 9px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
}

.export-terms b {
  display: inline-block;
  min-width: 66px;
  margin-right: 10px;
  color: var(--brand);
}

.export-terms li {
  color: var(--ink);
}

@media (max-width: 1100px) {
  .capability-stats,
  .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .flow-steps li::after {
    display: none;
  }
}

@media (max-width: 760px) {
  .chamber-grid,
  .equipment-grid {
    grid-template-columns: 1fr;
  }

  .export-lead strong {
    font-size: 32px;
  }
}

@media (max-width: 760px) {
  .site-header {
    min-height: 64px;
    padding: 0 16px;
  }

  .header-inner {
    gap: 12px;
  }

  .hero {
    min-height: 640px;
    padding: 110px 20px 82px;
  }

  .hero h1 {
    font-size: 35px;
  }

  .hero-proof {
    gap: 12px 20px;
    margin-top: 34px;
  }

  .hero-dots {
    bottom: 30px;
  }

  .stats-strip {
    width: calc(100% - 28px);
    margin: -20px auto 0;
    grid-template-columns: repeat(2, 1fr);
  }

  .catalog-toolbar {
    position: static;
    padding: 12px;
  }

  .solutions-layout,
  .contact-head {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .solution-aside {
    position: static;
  }

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