:root {
  color-scheme: light;
  --ink: #111922;
  --text: #273746;
  --muted: #66727f;
  --line: #e4e8ec;
  --paper: #ffffff;
  --soft: #f3f5f7;
  --blue: #0d4d8d;
  --blue-dark: #082f63;
  --blue-soft: #eaf1f9;
  --orange: #ef8f35;
  --orange-dark: #d8741d;
  --teal: #0f766e;
  --container: 1180px;
  --radius: 8px;
  --shadow: 0 18px 44px rgba(17, 25, 34, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.72;
  overflow-x: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 16px;
  z-index: 100;
  padding: 8px 12px;
  color: #ffffff;
  background: var(--blue-dark);
  border-radius: 6px;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #ffffff;
  box-shadow: 0 1px 0 rgba(17, 25, 34, 0.08);
}

.topbar {
  color: #87919c;
  background: #f7f8fa;
  border-bottom: 1px solid var(--line);
  font-size: 0.82rem;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 34px;
  gap: 16px;
}

.top-links {
  display: flex;
  align-items: center;
  gap: 9px;
}

.top-links a:hover,
.top-links a:focus-visible {
  color: var(--blue);
  outline: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-toggle {
  min-width: 62px;
  min-height: 38px;
  padding: 7px 12px;
  color: var(--blue-dark);
  background: #ffffff;
  border: 1px solid #b9c9d9;
  border-radius: 2px;
  cursor: pointer;
  font-weight: 800;
}

.lang-toggle:hover,
.lang-toggle:focus-visible {
  color: #ffffff;
  background: var(--blue);
  border-color: var(--blue);
  outline: none;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  flex: 0 0 auto;
}

.brand-logo {
  display: block;
  width: 58px;
  height: 58px;
  object-fit: contain;
  background: #ffffff;
  border-radius: 50%;
}

.brand-text strong,
.brand-text small {
  display: block;
  line-height: 1.16;
}

.brand-text strong {
  color: var(--blue-dark);
  font-size: 1.32rem;
  font-weight: 900;
}

.brand-text small {
  margin-top: 4px;
  color: #485766;
  font-size: 0.82rem;
  font-weight: 750;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.site-nav a {
  position: relative;
  padding: 34px 14px;
  color: #151f2a;
  font-size: 1rem;
  font-weight: 760;
  white-space: nowrap;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 14px;
  bottom: 22px;
  left: 14px;
  height: 3px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--blue);
  outline: none;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
  border-radius: 999px;
}

.hero {
  position: relative;
  overflow: hidden;
  color: #ffffff;
  background: var(--blue-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(8, 47, 99, 0.96), rgba(13, 77, 141, 0.82)),
    radial-gradient(circle at 78% 35%, rgba(239, 143, 53, 0.26), transparent 28%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.055) 0 1px, transparent 1px 88px);
}

.hero-bg::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -160px;
  width: 620px;
  height: 620px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  box-shadow: inset 0 0 0 62px rgba(255, 255, 255, 0.035);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 56px;
  align-items: center;
  min-height: 560px;
  padding: 82px 0 76px;
}

.eyebrow,
.section-title p,
.section-head p,
.culture-inner > div p {
  margin: 0 0 12px;
  color: var(--orange);
  font-size: 0.82rem;
  font-weight: 850;
  letter-spacing: 0;
}

.hero h1 {
  margin: 0;
  font-size: 3.65rem;
  line-height: 1.22;
  font-weight: 900;
}

.hero h1 span {
  display: block;
}

.hero-copy p:not(.eyebrow) {
  max-width: 760px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.08rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  font-weight: 800;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.button:hover,
.button:focus-visible {
  outline: none;
  transform: translateY(-1px);
}

.button-primary {
  color: #ffffff;
  background: var(--orange);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--orange-dark);
}

.button-light {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.08);
}

.button-light:hover,
.button-light:focus-visible {
  background: rgba(255, 255, 255, 0.17);
}

.button-outline {
  color: var(--blue);
  background: #ffffff;
  border-color: #b9c9d9;
}

.button-outline:hover,
.button-outline:focus-visible {
  background: var(--blue-soft);
}

.hero-panel {
  min-height: 280px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.24);
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(8px);
}

.hero-panel-title {
  padding: 18px 20px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  font-size: 1.35rem;
  font-weight: 900;
}

.hero-panel ul {
  display: grid;
  gap: 14px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.hero-panel li {
  position: relative;
  padding-left: 20px;
  color: rgba(255, 255, 255, 0.86);
}

.hero-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  background: var(--orange);
}

.business-strip {
  padding-top: 28px;
  background: #ffffff;
  box-shadow: 0 12px 32px rgba(17, 25, 34, 0.08);
}

.strip-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.strip-list a {
  min-height: 78px;
  display: grid;
  place-items: center;
  color: #ffffff;
  background: var(--orange);
  border-right: 1px solid rgba(255, 255, 255, 0.32);
  font-size: 1.12rem;
  font-weight: 850;
}

.strip-list a:last-child {
  border-right: 0;
}

.strip-list a:hover,
.strip-list a:focus-visible {
  color: #ffffff;
  background: var(--orange-dark);
  outline: none;
}

.section {
  padding: 90px 0;
}

section[id] {
  scroll-margin-top: 126px;
}

.section-title h2,
.section-head h2,
.culture-inner h2 {
  margin: 0;
  color: var(--ink);
  font-size: 2.28rem;
  line-height: 1.24;
  font-weight: 900;
}

.section-head {
  max-width: 740px;
  margin-bottom: 36px;
}

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

.intro-section {
  padding: 28px 0 34px;
  background: #ffffff;
}

.intro-grid {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 72px;
  align-items: start;
  padding: 58px 64px;
  color: #ffffff;
  background:
    linear-gradient(90deg, rgba(8, 47, 99, 0.98), rgba(13, 77, 141, 0.88)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 86px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
  box-shadow: 0 18px 42px rgba(8, 47, 99, 0.18);
}

.intro-grid::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 38%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0 38%, rgba(255, 255, 255, 0.08) 38% 45%, transparent 45%);
  content: "";
  pointer-events: none;
}

.intro-grid > * {
  position: relative;
  z-index: 1;
}

.intro-copy p,
.product-copy > p,
.culture-inner > p,
.contact-copy > p {
  margin: 0 0 18px;
  color: #283845;
  font-size: 1.04rem;
}

.intro-section .section-title h2,
.intro-section .intro-copy p {
  color: #ffffff;
}

.intro-section .section-title {
  margin-bottom: 0;
}

.intro-section .section-title p {
  color: var(--orange);
}

.text-link {
  display: inline-flex;
  align-items: center;
  margin-top: 14px;
  min-width: 190px;
  min-height: 48px;
  justify-content: center;
  color: #ffffff;
  background: var(--orange);
  font-weight: 800;
}

.text-link:hover,
.text-link:focus-visible {
  background: var(--orange-dark);
  outline: none;
}

.business-section {
  padding: 44px 0 78px;
  background: #ffffff;
}

.business-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.9fr;
  gap: 18px;
}

.business-card {
  min-height: 278px;
  padding: 28px;
  background: #ffffff;
  border: 1px solid var(--line);
  box-shadow: 0 12px 34px rgba(17, 25, 34, 0.07);
}

.business-card span,
.service-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 24px;
  color: #ffffff;
  background: var(--blue);
  font-weight: 900;
}

.business-card h3,
.service-list h3,
.news-grid h3 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 1.24rem;
  line-height: 1.34;
}

.business-card p,
.service-list p,
.news-grid p {
  margin: 0;
  color: var(--muted);
}

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

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(360px, 1.04fr);
  gap: 56px;
  align-items: center;
}

.product-visual {
  width: min(100%, 430px);
  justify-self: center;
  padding: 16px;
  background: #ffffff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

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

.product-facts {
  display: grid;
  gap: 1px;
  margin: 22px 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.product-facts div {
  display: grid;
  grid-template-columns: 124px 1fr;
  gap: 18px;
  padding: 17px 18px;
  background: #ffffff;
}

.product-facts dt {
  color: var(--blue);
  font-weight: 900;
}

.product-facts dd {
  margin: 0;
  color: var(--muted);
}

.service-section {
  background: #ffffff;
}

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

.service-list article {
  min-height: 244px;
  padding: 28px;
  border-top: 4px solid var(--orange);
  background: var(--soft);
}

.culture-section {
  color: #ffffff;
  background:
    linear-gradient(90deg, rgba(8, 47, 99, 0.94), rgba(13, 77, 141, 0.88)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 86px);
}

.culture-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr auto;
  gap: 48px;
  align-items: center;
  min-height: 280px;
  padding: 60px 0;
}

.culture-inner h2,
.culture-inner > p {
  color: #ffffff;
}

.culture-inner > p {
  margin: 0;
}

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

.news-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.news-head .text-link {
  margin-top: 0;
}

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

.news-grid article {
  min-height: 240px;
  padding: 26px;
  background: #ffffff;
  border: 1px solid var(--line);
}

.news-grid time {
  display: block;
  margin-bottom: 18px;
  color: var(--orange);
  font-weight: 850;
}

.contact-section {
  background: #ffffff;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: 56px;
  align-items: start;
}

.contact-lines {
  display: grid;
  gap: 10px;
  margin-top: 28px;
  padding: 24px;
  background: var(--blue-soft);
  border-left: 4px solid var(--blue);
}

.contact-lines p {
  margin: 0;
}

.contact-lines span {
  color: #8a520b;
}

.inquiry-form {
  display: grid;
  gap: 16px;
  padding: 30px;
  background: #ffffff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.inquiry-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 800;
}

.inquiry-form input,
.inquiry-form textarea {
  width: 100%;
  padding: 12px 13px;
  color: var(--ink);
  background: #fbfcfd;
  border: 1px solid #cfd8e2;
  border-radius: 2px;
  outline: none;
}

.inquiry-form input:focus,
.inquiry-form textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(13, 77, 141, 0.14);
}

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

.inquiry-output {
  display: none;
  min-height: 108px;
  padding: 14px;
  color: #263746;
  background: var(--soft);
  border: 1px dashed #b9c5d0;
  white-space: pre-wrap;
}

.inquiry-output.is-visible {
  display: block;
}

.site-footer {
  color: #bfcbd7;
  background: #101923;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, minmax(0, 1fr));
  gap: 36px;
  padding: 54px 0 38px;
}

.footer-brand strong,
.footer-brand span,
.site-footer a,
.site-footer h2 {
  display: block;
}

.footer-brand strong {
  color: #ffffff;
  font-size: 1.25rem;
}

.footer-brand span {
  margin-top: 8px;
  color: #8ea1b4;
  font-size: 0.86rem;
  font-weight: 800;
}

.site-footer h2 {
  margin: 0 0 14px;
  color: #ffffff;
  font-size: 1rem;
}

.site-footer a {
  margin: 8px 0;
  color: #bfcbd7;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: #ffffff;
  outline: none;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.9rem;
}

.footer-bottom p {
  margin: 0;
}

.promo-hero {
  color: #ffffff;
  background:
    linear-gradient(90deg, rgba(8, 47, 99, 0.96), rgba(13, 77, 141, 0.82)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 88px);
}

.promo-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(420px, 1.14fr);
  gap: 54px;
  align-items: center;
  min-height: 590px;
  padding: 72px 0;
}

.promo-hero-copy h1 {
  margin: 0;
  font-size: 3.28rem;
  line-height: 1.18;
  font-weight: 900;
}

.promo-hero-copy p:not(.eyebrow) {
  max-width: 650px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.08rem;
}

.promo-hero-visual {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 20px 54px rgba(0, 0, 0, 0.2);
}

.promo-hero-visual img {
  width: 100%;
  min-height: 390px;
  object-fit: cover;
}

.promo-section {
  background: #ffffff;
}

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

.promo-card {
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--line);
  box-shadow: 0 12px 34px rgba(17, 25, 34, 0.08);
}

.promo-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--soft);
}

.promo-card div {
  padding: 24px;
}

.promo-card h3 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 1.24rem;
}

.promo-card p {
  margin: 0;
  color: var(--muted);
}

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

.promo-specs {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.promo-specs div {
  display: grid;
  grid-template-columns: 138px 1fr;
  gap: 20px;
  padding: 20px;
  background: #ffffff;
}

.promo-specs dt {
  color: var(--blue);
  font-weight: 900;
}

.promo-specs dd {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 1400px) {
  .header-inner {
    min-height: 78px;
  }

  .brand-logo {
    width: 50px;
    height: 50px;
  }

  .brand-text strong {
    font-size: 1.12rem;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px;
    background: #ffffff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 13px 14px;
  }

  .site-nav a::after {
    display: none;
  }
}

@media (max-width: 1060px) {

  .hero-inner,
  .intro-grid,
  .product-layout,
  .contact-grid,
  .promo-hero-grid,
  .culture-inner {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    max-width: 620px;
  }

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

  .intro-grid {
    gap: 32px;
    padding: 46px 38px;
  }

  .service-list,
  .news-grid,
  .promo-gallery,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .culture-inner {
    gap: 24px;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .topbar {
    display: none;
  }

  .brand-text small {
    display: none;
  }

  .brand-text strong {
    max-width: 13em;
    font-size: 0.98rem;
    line-height: 1.25;
  }

  .hero-inner {
    min-height: auto;
    padding: 58px 0 66px;
  }

  .hero h1 {
    font-size: 2.34rem;
  }

  .strip-list,
  .business-grid,
  .service-list,
  .news-grid,
  .promo-gallery,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .promo-hero-grid {
    min-height: auto;
    padding: 58px 0;
  }

  .promo-hero-copy h1 {
    font-size: 2.24rem;
  }

  .business-strip {
    padding-top: 18px;
  }

  .strip-list a {
    min-height: 62px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.32);
  }

  .section {
    padding: 68px 0;
  }

  .intro-section {
    padding: 18px 0 28px;
  }

  .business-section {
    padding: 36px 0 58px;
  }

  .section-title h2,
  .section-head h2,
  .culture-inner h2 {
    font-size: 1.82rem;
  }

  .intro-grid {
    gap: 24px;
    padding: 34px 24px;
  }

  .product-facts div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .promo-specs div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .news-head,
  .footer-bottom {
    display: block;
  }

  .news-head .text-link {
    margin-top: 22px;
  }

  .form-actions .button,
  .hero-actions .button {
    width: 100%;
  }

  .footer-bottom p + p {
    margin-top: 8px;
  }
}