:root {
  --navy: #071f4d;
  --navy-2: #0b2d67;
  --blue: #0057c8;
  --cyan: #59d7ff;
  --gold: #d6a85e;
  --green: #1d8f65;
  --ink: #11233d;
  --muted: #687789;
  --line: #dbe5f1;
  --paper: #ffffff;
  --soft: #f4f8fd;
  --shadow: 0 22px 60px rgba(7, 31, 77, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 12px clamp(18px, 4.8vw, 72px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(219, 229, 241, 0.8);
  backdrop-filter: blur(18px);
}

.brand img {
  width: 92px;
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.8vw, 36px);
  color: var(--navy);
  font-size: 0.95rem;
  font-weight: 800;
}

.main-nav a {
  position: relative;
  text-decoration: none;
}

.main-nav a::after {
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  content: "";
  background: var(--blue);
  transition: width 180ms ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  width: 100%;
}

.nav-cta {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 18px;
  color: #fff;
  background: var(--navy);
  border-radius: 999px;
}

.nav-cta::after {
  display: none;
}

.nav-toggle,
.nav-button {
  display: none;
}

.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  overflow: hidden;
  background: var(--navy);
}

.hero-slider,
.hero-slide,
.hero-slide img,
.hero-tint {
  position: absolute;
  inset: 0;
}

.hero-slide {
  display: grid;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 700ms ease;
}

.hero-slide.is-active {
  opacity: 1;
  pointer-events: auto;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  transition: transform 6000ms ease;
}

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

.hero-tint {
  background:
    radial-gradient(circle at 18% 42%, rgba(89, 215, 255, 0.22), transparent 24%),
    linear-gradient(90deg, rgba(5, 22, 54, 0.9), rgba(5, 22, 54, 0.48) 54%, rgba(5, 22, 54, 0.16)),
    linear-gradient(0deg, rgba(5, 22, 54, 0.45), rgba(5, 22, 54, 0));
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(760px, calc(100% - 36px));
  margin-left: clamp(18px, 7vw, 108px);
  padding: 58px 0 104px;
  color: #fff;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.75rem, 6vw, 6.4rem);
  font-weight: 900;
  line-height: 0.98;
}

.hero p {
  max-width: 620px;
  margin: 24px 0 32px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1rem, 1.6vw, 1.24rem);
}

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

.button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  color: #fff;
  background: var(--blue);
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 16px 32px rgba(0, 87, 200, 0.26);
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible,
.text-link:hover,
.text-link:focus-visible {
  background: var(--navy);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(7, 31, 77, 0.22);
}

.button.ghost {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.34);
  box-shadow: none;
}

.button.secondary {
  background: var(--green);
  box-shadow: 0 16px 32px rgba(29, 143, 101, 0.2);
}

.hero-controls {
  position: absolute;
  left: clamp(18px, 7vw, 108px);
  bottom: 34px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 14px;
}

.slider-btn {
  width: 42px;
  height: 42px;
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.8rem;
  line-height: 1;
}

.slider-dots {
  display: flex;
  gap: 8px;
}

.slider-dots button {
  width: 34px;
  height: 3px;
  padding: 0;
  background: rgba(255, 255, 255, 0.4);
  border: 0;
  border-radius: 99px;
  cursor: pointer;
}

.slider-dots button.is-active {
  background: #fff;
}

.metric-band {
  position: relative;
  z-index: 4;
  width: min(1180px, calc(100% - 36px));
  margin: -56px auto 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  overflow: hidden;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(219, 229, 241, 0.9);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.metric-band div {
  padding: 24px;
  border-right: 1px solid var(--line);
}

.metric-band div:last-child {
  border-right: 0;
}

.metric-band strong {
  display: block;
  color: var(--navy);
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  line-height: 1;
}

.metric-band span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.section {
  padding: clamp(70px, 9vw, 120px) clamp(18px, 5vw, 76px);
}

.section-heading {
  width: min(1080px, 100%);
  margin: 0 auto 34px;
}

.section-heading > p {
  max-width: 760px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.section-heading.split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

h2,
h3,
p {
  overflow-wrap: anywhere;
}

h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(2rem, 4vw, 3.65rem);
  font-weight: 900;
  line-height: 1.08;
}

h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 1.28rem;
  line-height: 1.25;
}

.intro {
  background:
    linear-gradient(180deg, #fff 0%, var(--soft) 100%);
}

.capability-grid {
  width: min(1080px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.capability-grid article {
  min-height: 220px;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.capability-grid article img {
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-bottom: 22px;
  object-fit: cover;
  border-radius: 6px;
  background: var(--soft);
}

.capability-grid span {
  display: inline-flex;
  margin-bottom: 26px;
  color: var(--gold);
  font-size: 0.9rem;
  font-weight: 900;
}

.capability-grid p,
.feature p,
.brand-card p,
.showcase-copy p,
.cta-panel p {
  color: var(--muted);
}

.showcase {
  display: grid;
  grid-template-columns: minmax(320px, 0.86fr) minmax(0, 1.14fr);
  align-items: center;
  gap: clamp(28px, 5vw, 70px);
  padding: clamp(70px, 9vw, 126px) clamp(18px, 5vw, 76px);
  color: #fff;
  background:
    linear-gradient(135deg, rgba(7, 31, 77, 0.98), rgba(9, 51, 114, 0.95)),
    var(--navy);
}

.showcase h2 {
  color: #fff;
}

.showcase-copy {
  justify-self: end;
  width: min(520px, 100%);
}

.showcase-copy p {
  color: rgba(255, 255, 255, 0.76);
}

.showcase-media {
  position: relative;
  min-height: 520px;
}

.showcase-media img:first-child {
  width: 88%;
  height: 520px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.24);
}

.showcase-media img:last-child {
  position: absolute;
  right: 0;
  bottom: 42px;
  width: 132px;
  padding: 16px;
  background: #fff;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.brands {
  background: #fff;
}

.brand-strip,
.news-grid {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 20px;
}

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

.brand-card {
  min-height: 410px;
  display: flex;
  flex-direction: column;
  padding: 16px;
  color: inherit;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.brand-card:hover,
.brand-card:focus-visible {
  transform: translateY(-5px);
  box-shadow: 0 30px 70px rgba(7, 31, 77, 0.2);
}

.brand-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 6px;
  background: var(--soft);
}

.brand-card span {
  margin: 18px 0 6px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.text-link {
  color: #fff;
  white-space: nowrap;
}

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

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

.article-grid {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 20px;
}

.article-card {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.article-card.large {
  grid-row: span 2;
}

.article-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--soft);
}

.article-body {
  padding: 26px;
}

.article-body p {
  color: var(--muted);
}

.article-body a {
  color: var(--blue);
  font-weight: 900;
  text-decoration: none;
}

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

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

.feature img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.feature div {
  padding: 26px;
}

.feature a {
  color: var(--blue);
  font-weight: 900;
  text-decoration: none;
}

.detail-hub {
  background:
    linear-gradient(180deg, #fff 0%, var(--soft) 100%);
}

.service-center,
.policy-center {
  background: #fff;
}

.assurance-center,
.media-center {
  background: var(--soft);
}

.service-grid,
.assurance-grid,
.policy-grid,
.media-grid {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.service-grid,
.policy-grid,
.media-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.service-card,
.assurance-grid article,
.policy-grid article,
.media-card,
.operations-strip article {
  min-height: 340px;
  display: flex;
  flex-direction: column;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.service-card img,
.assurance-grid article img,
.policy-grid article img,
.media-card img,
.operations-strip article img {
  width: 100%;
  aspect-ratio: 16 / 10;
  margin-bottom: 18px;
  object-fit: cover;
  border-radius: 6px;
  background: var(--soft);
}

.service-card p,
.assurance-grid p,
.policy-grid p,
.media-card p,
.operations-strip p {
  color: var(--muted);
}

.service-card ul,
.policy-grid ul {
  margin: 0 0 20px;
  padding-left: 18px;
  color: var(--muted);
}

.service-card a,
.assurance-grid a,
.policy-grid a,
.media-card a,
.operations-strip a {
  margin-top: auto;
  color: var(--blue);
  font-weight: 900;
  text-decoration: none;
}

.media-card span {
  order: -1;
  width: fit-content;
  margin-bottom: 12px;
  padding: 6px 10px;
  color: #fff;
  background: var(--navy);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.operations-strip {
  width: min(1180px, 100%);
  margin: 28px auto 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.detail-grid {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.detail-card {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.detail-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  margin-bottom: 18px;
  object-fit: cover;
  border-radius: 6px;
  background: var(--soft);
}

.detail-card p {
  color: var(--muted);
}

.detail-card a {
  margin-top: auto;
  color: var(--blue);
  font-weight: 900;
  text-decoration: none;
}

.cta-panel {
  width: min(1180px, calc(100% - 36px));
  margin: 86px auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: clamp(28px, 5vw, 58px);
  color: #fff;
  background:
    linear-gradient(135deg, rgba(0, 87, 200, 0.92), rgba(7, 31, 77, 0.98)),
    var(--navy);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.cta-panel h2 {
  color: #fff;
}

.cta-panel p {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.78);
}

.site-footer {
  padding: 64px clamp(18px, 5vw, 76px) 36px;
  color: #fff;
  background: #071f4d;
}

.footer-grid {
  width: min(980px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr));
  gap: clamp(42px, 15vw, 220px);
}

.site-footer nav {
  display: grid;
  gap: 18px;
}

.site-footer a {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 900;
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--cyan);
}

.footer-bottom {
  width: min(980px, 100%);
  margin: 50px auto 0;
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  font-size: 1rem;
  font-weight: 800;
}

.footer-bottom img {
  width: 82px;
  height: auto;
  padding: 6px;
  background: #fff;
  border-radius: 4px;
}

@media (max-width: 980px) {
  .nav-button {
    display: grid;
    gap: 5px;
    width: 42px;
    height: 42px;
    place-content: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    cursor: pointer;
  }

  .nav-button span {
    width: 20px;
    height: 2px;
    background: var(--navy);
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 18px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

  .nav-toggle:checked ~ .main-nav {
    display: grid;
  }

  .nav-cta {
    width: fit-content;
  }

  .metric-band,
  .capability-grid,
  .article-grid,
  .brand-strip,
  .news-grid,
  .detail-grid,
  .service-grid,
  .assurance-grid,
  .policy-grid,
  .media-grid,
  .operations-strip,
  .showcase,
  .cta-panel,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .metric-band div:last-child {
    border-bottom: 0;
  }

  .section-heading.split,
  .cta-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .showcase-copy {
    justify-self: start;
  }

  .showcase-media,
  .showcase-media img:first-child {
    min-height: 360px;
    height: 420px;
  }

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

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

  .article-card.large {
    grid-row: auto;
  }

  .service-grid,
  .assurance-grid,
  .policy-grid,
  .media-grid,
  .operations-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .site-header {
    min-height: 68px;
  }

  .brand img {
    width: 76px;
  }

  .hero {
    min-height: 690px;
  }

  .hero-content {
    align-self: end;
    margin: 0 auto;
    padding-bottom: 96px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-controls {
    left: 18px;
    bottom: 24px;
  }

  .brand-strip {
    grid-template-columns: 1fr;
  }

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

  .service-grid,
  .assurance-grid,
  .policy-grid,
  .media-grid,
  .operations-strip {
    grid-template-columns: 1fr;
  }

  .showcase-media,
  .showcase-media img:first-child {
    height: 330px;
    min-height: 330px;
    width: 100%;
  }

  .showcase-media img:last-child {
    width: 104px;
    bottom: -26px;
  }

  .site-footer a {
    font-size: 1.12rem;
  }

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