:root {
  --ink: #111827;
  --muted: #5f6978;
  --line: #e5e9ef;
  --paper: #ffffff;
  --soft: #f6f8fb;
  --deep: #0b1220;
  --gold: #c9a45c;
  --teal: #1f9a9a;
  --blue: #2363d1;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.12);
  --radius: 8px;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-width: 320px;
}

body {
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

#top,
#about,
#products,
#honor,
#news {
  scroll-margin-top: 88px;
}

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

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

button {
  font: inherit;
}

.container {
  width: min(1200px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 26px;
  height: 76px;
  padding: 0 max(28px, calc((100vw - 1240px) / 2));
  color: #fff;
  transition: background 0.25s ease, box-shadow 0.25s ease, color 0.25s ease;
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 45px rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand-logo {
  display: block;
  width: 54px;
  height: 54px;
  object-fit: contain;
  border-radius: var(--radius);
}

.brand-text {
  display: grid;
  gap: 0;
  line-height: 1.2;
}

.brand-text strong {
  font-size: 18px;
  letter-spacing: 0;
}

.brand-text small {
  color: currentColor;
  font-size: 11px;
  opacity: 0.68;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex: 1 1 auto;
  min-width: 0;
  font-size: 14px;
  white-space: nowrap;
}

.site-nav a {
  position: relative;
  opacity: 0.9;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -10px;
  left: 0;
  height: 2px;
  background: var(--gold);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

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

.header-cta {
  flex: 0 0 auto;
  padding: 9px 17px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: var(--radius);
  font-size: 14px;
  background: rgba(255, 255, 255, 0.08);
}

.is-scrolled .header-cta {
  border-color: var(--line);
  background: var(--ink);
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  color: currentColor;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 800px;
  background: var(--deep);
  color: #fff;
  overflow: hidden;
}

.hero picture,
.hero-image {
  width: 100%;
  height: 100%;
}

.hero picture {
  position: absolute;
  inset: 0;
}

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

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 14, 29, 0.86), rgba(7, 14, 29, 0.5) 45%, rgba(7, 14, 29, 0.18));
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: min(1200px, calc(100% - 40px));
  min-height: 800px;
  margin-inline: auto;
  padding-top: 76px;
}

.eyebrow,
.section-kicker {
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 18px 0 18px;
  font-size: 64px;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero p {
  max-width: 640px;
  margin: 0 0 32px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 20px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border-radius: var(--radius);
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, #d5b66e, #b48938);
  color: #101828;
  box-shadow: 0 18px 42px rgba(201, 164, 92, 0.28);
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.section {
  padding: 96px 0;
}

.about-section,
.honor-section {
  background: var(--paper);
}

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

.about-grid {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 64px;
  align-items: center;
}

.about-media {
  position: relative;
}

.about-media img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.metric-strip {
  position: absolute;
  right: 28px;
  bottom: -30px;
  left: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 18px 52px rgba(15, 23, 42, 0.16);
  backdrop-filter: blur(18px);
}

.metric-strip div {
  padding: 18px;
  background: rgba(255, 255, 255, 0.86);
}

.metric-strip strong {
  display: block;
  font-size: 26px;
  line-height: 1;
}

.metric-strip span {
  color: var(--muted);
  font-size: 13px;
}

.about-copy h2,
.section-head h2,
.culture-content h2,
.contact-inner h2 {
  margin: 10px 0 16px;
  font-size: 40px;
  line-height: 1.2;
  letter-spacing: 0;
}

.about-copy p,
.section-head p,
.culture-content p,
.contact-inner p {
  color: var(--muted);
  margin: 0 0 16px;
}

.about-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.about-points span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: #344054;
  font-size: 14px;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-head-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  max-width: none;
  text-align: left;
}

.text-link {
  color: var(--blue);
  font-weight: 700;
}

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

.service-card {
  position: relative;
  min-height: 292px;
  padding: 26px;
  border: 1px solid rgba(203, 213, 225, 0.78);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
  overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.service-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--teal), var(--blue));
  content: "";
}

.service-card:hover {
  border-color: rgba(35, 99, 209, 0.35);
  box-shadow: var(--shadow);
  transform: translateY(-6px);
}

.service-card:nth-child(1),
.service-card:nth-child(3) {
  grid-column: span 2;
}

.service-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  border-radius: var(--radius);
  background: #eef6f7;
  color: var(--teal);
}

.service-icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.service-card span {
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.service-card h3 {
  margin: 8px 0 10px;
  font-size: 24px;
  line-height: 1.25;
}

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

.service-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.service-card li {
  padding: 4px 9px;
  border-radius: 999px;
  background: #f0f4f8;
  color: #475467;
  font-size: 12px;
}

.culture-band {
  position: relative;
  min-height: 520px;
  color: #fff;
  background: var(--deep);
  overflow: hidden;
}

.culture-band img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.culture-band::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 15, 31, 0.78), rgba(8, 15, 31, 0.32));
  content: "";
}

.culture-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: min(1200px, calc(100% - 40px));
  min-height: 520px;
  margin-inline: auto;
}

.culture-content h2 {
  max-width: 690px;
  color: #fff;
}

.culture-content p {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
}

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

.honor-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.honor-card img {
  width: 100%;
  aspect-ratio: 1.35;
  object-fit: cover;
  background: #f3f6fa;
}

.honor-card div {
  padding: 18px;
}

.honor-card span {
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
}

.honor-card h3 {
  margin: 6px 0 0;
  font-size: 18px;
  line-height: 1.35;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.news-card {
  min-width: 0;
  border: 1px solid rgba(203, 213, 225, 0.78);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 14px 38px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.news-card img {
  width: 100%;
  aspect-ratio: 1.58;
  object-fit: cover;
}

.news-body {
  padding: 22px;
}

.news-meta {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--muted);
  font-size: 13px;
}

.news-meta span {
  color: var(--blue);
  font-weight: 700;
}

.news-card h3 {
  margin: 14px 0 10px;
  font-size: 21px;
  line-height: 1.35;
}

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

.contact-band {
  padding: 72px 0;
  color: #fff;
  background: linear-gradient(135deg, #0d1728, #162c42 52%, #123b4a);
}

.btn-dark {
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
}

.contact-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.contact-inner h2 {
  color: #fff;
}

.contact-inner p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.72);
}

.site-footer {
  color: rgba(255, 255, 255, 0.78);
  background: #070d18;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 40px;
  padding: 52px 0;
}

.footer-brand {
  margin-bottom: 16px;
  color: #fff;
}

.site-footer strong {
  color: #fff;
}

.site-footer p {
  margin: 12px 0 0;
}

.footer-bottom {
  padding: 18px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  font-size: 13px;
}

.service-page {
  padding-top: 76px;
}

.inner-page {
  padding-top: 76px;
  background: var(--soft);
}

.inner-hero {
  padding: 76px 0 54px;
  color: #fff;
  background: linear-gradient(135deg, #0b1220, #18324a 58%, #123b4a);
}

.inner-hero h1 {
  margin: 12px 0 14px;
  font-size: 48px;
  line-height: 1.15;
}

.inner-hero p {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 18px;
}

.service-hero {
  padding: 84px 0 68px;
  color: #fff;
  background: linear-gradient(135deg, #0b1220, #18324a 55%, #0f4c5c);
}

.service-hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
}

.service-hero h1 {
  margin: 12px 0 16px;
  font-size: 64px;
  line-height: 1.08;
}

.service-hero p {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
}

.service-hero-panel {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
}

.service-hero-panel span {
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.service-hero-panel strong {
  display: block;
  margin: 10px 0 8px;
  font-size: 42px;
}

.companion-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  align-items: start;
}

.companion-aside h2,
.companion-article h2 {
  margin: 10px 0 16px;
  font-size: 32px;
  line-height: 1.25;
}

.companion-aside p,
.companion-article p {
  color: var(--muted);
}

.companion-article {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 16px 42px rgba(15, 23, 42, 0.06);
}

.companion-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.companion-points div {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.companion-points strong {
  color: var(--gold);
}

.companion-points span {
  display: block;
  margin: 8px 0;
  font-weight: 700;
}

.companion-form-section {
  padding: 40px 0 84px;
  background: var(--paper);
}

.companion-form {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 16px 42px rgba(15, 23, 42, 0.06);
}

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

.companion-form label {
  display: grid;
  gap: 8px;
}

.companion-form span {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.companion-form input,
.companion-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.companion-form textarea {
  resize: vertical;
  min-height: 180px;
}

.form-textarea {
  margin-top: 18px;
}

.form-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.certificate-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.certificate-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 14px 38px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.certificate-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.certificate-card div {
  padding: 18px;
}

.certificate-card span {
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
}

.certificate-card h2 {
  margin: 6px 0 0;
  font-size: 20px;
  line-height: 1.35;
}

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

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

.article-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  padding: 24px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.05);
}

.article-date {
  display: grid;
  align-content: start;
  gap: 8px;
}

.article-date time {
  color: var(--ink);
  font-size: 18px;
  font-weight: 800;
}

.article-date span {
  width: fit-content;
  padding: 4px 10px;
  border-radius: 999px;
  background: #eef6f7;
  color: var(--teal);
  font-size: 13px;
  font-weight: 700;
}

.article-copy h2 {
  margin: 0 0 8px;
  font-size: 22px;
  line-height: 1.35;
}

.article-copy p {
  margin: 0;
  color: var(--muted);
}

.pager {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.pager button {
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.pager button.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.pager button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

@media (max-width: 1180px) {
  .site-nav {
    gap: 12px;
    font-size: 13px;
  }

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

  .service-card:nth-child(1),
  .service-card:nth-child(3) {
    grid-column: span 1;
  }

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

@media (max-width: 920px) {
  .site-header {
    height: 68px;
    padding: 0 20px;
  }

  .site-nav {
    position: fixed;
    top: 68px;
    right: 14px;
    left: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.98);
    color: var(--ink);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 10px 12px;
  }

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

  .nav-toggle {
    display: block;
    margin-left: auto;
  }

  .site-header.is-scrolled .nav-toggle {
    border-color: var(--line);
    background: #fff;
  }

  .header-cta {
    display: none;
  }

  .hero {
    min-height: auto;
    aspect-ratio: 3 / 4;
  }

  .hero-content {
    min-height: auto;
    height: 100%;
    padding-top: 68px;
    padding-bottom: 34px;
    justify-content: end;
  }

  .hero-overlay {
    background: linear-gradient(180deg, rgba(7, 14, 29, 0.18), rgba(7, 14, 29, 0.9));
  }

  .hero h1 {
    max-width: 560px;
    margin: 14px 0 12px;
    font-size: 42px;
  }

  .hero p {
    max-width: 560px;
    margin-bottom: 24px;
    font-size: 17px;
  }

  .section {
    padding: 70px 0;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 66px;
  }

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

  .section-head-row,
  .contact-inner,
  .footer-grid {
    align-items: start;
    flex-direction: column;
    grid-template-columns: 1fr;
  }

  .service-hero-grid,
  .companion-layout {
    grid-template-columns: 1fr;
  }

  .service-hero h1 {
    font-size: 42px;
  }

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

  .article-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (max-width: 640px) {
  .container,
  .hero-content,
  .culture-content {
    width: min(100% - 28px, 1200px);
  }

  .brand-text small {
    display: none;
  }

  .brand-logo {
    width: 48px;
    height: 48px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero p {
    font-size: 15px;
  }

  .btn {
    min-height: 44px;
    padding: 0 18px;
  }

  .about-copy h2,
  .section-head h2,
  .culture-content h2,
  .contact-inner h2 {
    font-size: 30px;
  }

  .metric-strip {
    position: static;
    grid-template-columns: 1fr;
    margin-top: 12px;
  }

  .service-grid,
  .honor-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: auto;
    padding: 24px;
  }

  .culture-band,
  .culture-content {
    min-height: 430px;
  }

  .news-meta {
    display: grid;
  }

  .companion-points {
    grid-template-columns: 1fr;
  }

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

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

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

  .article-item {
    padding: 20px;
  }
}