:root {
  --navy: #173d5a;
  --navy-strong: #123249;
  --blue: #234f7c;
  --cyan: #43adce;
  --cyan-dark: #2589aa;
  --cyan-soft: #e9f6f9;
  --ink: #173047;
  --muted: #5e7487;
  --line: #d7e6eb;
  --surface: #f4f9fb;
  --white: #ffffff;
  --warm: #f3a85b;
  --shell: min(1180px, calc(100% - 40px));
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
}

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

[data-copy="en"] {
  display: none;
}

html[data-language="en"] [data-copy="zh"] {
  display: none;
}

html[data-language="en"] [data-copy="en"] {
  display: revert;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--white);
  color: var(--navy);
  transform: translateY(-160%);
}

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

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid rgba(215, 230, 235, 0.9);
  backdrop-filter: blur(14px);
}

.nav-shell {
  min-height: 74px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  color: var(--blue);
  font-size: 0.94rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-decoration: none;
}

.brand img {
  width: 50px;
  height: 38px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 25px;
  margin-left: auto;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--cyan-dark);
}

.language-switch {
  display: flex;
  direction: ltr;
  align-items: center;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
}

.language-switch button {
  min-width: 48px;
  padding: 6px 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 750;
}

.language-switch button[aria-pressed="true"] {
  background: var(--navy);
  color: var(--white);
}

.hero {
  position: relative;
  min-height: 690px;
  overflow: hidden;
  background: var(--navy);
  color: var(--white);
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.19;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent, black 40%, black 100%);
}

.hero-orbit {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
}

.hero-orbit-one {
  width: 480px;
  height: 480px;
  right: -130px;
  top: -185px;
}

.hero-orbit-two {
  width: 290px;
  height: 290px;
  right: 110px;
  bottom: -150px;
  background: rgba(67, 173, 206, 0.12);
}

.hero-layout {
  position: relative;
  z-index: 1;
  min-height: 690px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(310px, 0.75fr);
  align-items: center;
  gap: clamp(48px, 8vw, 110px);
  padding-block: 90px;
}

.eyebrow,
.section-label {
  color: var(--cyan-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.hero .eyebrow {
  margin-bottom: 24px;
  color: #9cd9e9;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.65rem, 5vw, 4.7rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.hero-intro {
  max-width: 670px;
  margin: 28px 0 0;
  color: #d9e7ed;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 11px 21px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 0.94rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

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

.button-primary {
  background: var(--cyan);
  color: var(--navy-strong);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #67c0da;
}

.button-quiet {
  border-color: rgba(255, 255, 255, 0.34);
  color: var(--white);
}

.button-quiet:hover,
.button-quiet:focus-visible {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.scope-panel {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 22px;
  background: rgba(11, 45, 66, 0.56);
  box-shadow: 0 30px 90px rgba(7, 27, 41, 0.35);
  backdrop-filter: blur(10px);
}

.scope-kicker {
  padding: 18px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  color: #a7dbe9;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.scope-item {
  display: grid;
  grid-template-columns: 108px 1fr;
  align-items: center;
  gap: 16px;
  min-height: 116px;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.scope-item:last-child {
  border-bottom: 0;
}

.scope-item strong {
  color: var(--cyan);
  font-size: 1.55rem;
  line-height: 1.2;
}

.scope-item p {
  margin: 0;
  color: #e3eef2;
  line-height: 1.55;
}

.section {
  padding-block: clamp(78px, 10vw, 120px);
}

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

.intro-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(40px, 8vw, 110px);
  align-items: start;
}

.section-label {
  margin: 0 0 18px;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 3.4vw, 3.25rem);
  line-height: 1.24;
  letter-spacing: -0.035em;
}

.intro-copy p,
.section-heading > p:last-child,
.control-layout > div > p:last-child,
.contact-copy > p:last-of-type {
  color: var(--muted);
  font-size: 1.05rem;
}

.intro-copy p:first-child {
  margin-top: 0;
}

.intro-copy p:last-child {
  margin-bottom: 0;
}

.section-heading {
  max-width: 830px;
  margin-bottom: 46px;
}

.section-heading > p:last-child {
  max-width: 720px;
  margin: 20px 0 0;
}

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

.service-card {
  min-height: 240px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: #a6d7e4;
  box-shadow: 0 20px 45px rgba(26, 78, 103, 0.08);
}

.service-number {
  display: inline-flex;
  min-width: 42px;
  height: 26px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--blue);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 800;
}

.service-card h3 {
  margin: 28px 0 12px;
  font-size: 1.18rem;
  line-height: 1.4;
}

.service-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.storage-heading {
  margin-bottom: 50px;
}

.storage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.storage-card {
  min-height: 310px;
  padding: 34px 30px;
  border: 1px solid var(--line);
  border-top-width: 7px;
  border-radius: 16px;
  background: var(--white);
}

.storage-cyan {
  border-top-color: var(--cyan);
}

.storage-navy {
  border-top-color: var(--blue);
}

.storage-warm {
  border-top-color: var(--warm);
}

.storage-type {
  color: var(--cyan-dark);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.11em;
}

.storage-navy .storage-type {
  color: var(--blue);
}

.storage-warm .storage-type {
  color: #c57727;
}

.storage-card h3 {
  margin: 50px 0 16px;
  font-size: 1.65rem;
}

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

.tailored-strip {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 34px;
  margin-top: 24px;
  padding: 28px 30px;
  border-radius: 16px;
  background: var(--cyan-soft);
}

.tailored-strip ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tailored-strip li {
  position: relative;
  padding-left: 15px;
  color: var(--muted);
  font-size: 0.91rem;
}

.tailored-strip li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  content: "";
}

.control-section {
  background: var(--navy);
  color: var(--white);
}

.control-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: center;
}

.section-label-light {
  color: #a5dbe9;
}

.control-layout > div > p:last-child {
  color: #cadde5;
}

.control-list {
  display: grid;
  gap: 12px;
}

.control-list > div {
  display: grid;
  grid-template-columns: 54px 1fr;
  align-items: center;
  gap: 16px;
  padding: 17px 20px;
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.control-list > div > span {
  color: var(--cyan);
  font-weight: 850;
}

.control-list p,
.control-list strong,
.control-list small {
  display: block;
  margin: 0;
}

.control-list small {
  margin-top: 2px;
  color: #b9d0da;
  font-size: 0.83rem;
}

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.coverage-card {
  min-height: 290px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 17px;
}

.coverage-primary {
  border-color: transparent;
  background: var(--cyan-soft);
}

.coverage-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan-dark);
  font-size: 0.73rem;
  font-weight: 850;
  letter-spacing: 0.09em;
}

.coverage-status span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
}

.coverage-status-warm {
  color: #b36f28;
}

.coverage-status-warm span {
  background: var(--warm);
}

.coverage-card h3 {
  margin: 52px 0 17px;
  font-size: 1.5rem;
}

.coverage-card p,
.coverage-note {
  color: var(--muted);
}

.coverage-note {
  margin: 20px 0 0;
  font-size: 0.88rem;
}

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

.client-grid article {
  display: grid;
  grid-template-columns: 52px 1fr;
  column-gap: 18px;
  min-height: 180px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--white);
}

.client-grid article > span {
  color: var(--cyan-dark);
  font-size: 0.78rem;
  font-weight: 850;
}

.client-grid h3,
.client-grid p {
  grid-column: 2;
  margin: 0;
}

.client-grid h3 {
  font-size: 1.13rem;
}

.client-grid p {
  margin-top: 11px;
  color: var(--muted);
}

.contact-section {
  padding-block: clamp(82px, 11vw, 130px);
  background: var(--navy-strong);
  color: var(--white);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.7fr);
  gap: clamp(48px, 9vw, 120px);
  align-items: center;
}

.contact-copy .button {
  margin-top: 24px;
}

.contact-copy > p:last-of-type {
  color: #c8dce4;
}

.brief-card {
  padding: 35px;
  border-radius: 18px;
  background: var(--white);
  color: var(--ink);
}

.brief-card h3 {
  margin: 0 0 22px;
  font-size: 1.18rem;
}

.brief-card ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.brief-card li {
  position: relative;
  padding-left: 22px;
  color: var(--muted);
}

.brief-card li::before {
  position: absolute;
  top: 0.67em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  content: "";
}

.site-footer {
  padding-block: 28px;
  border-top: 1px solid var(--line);
  background: var(--white);
}

.footer-layout {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 30px;
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-layout p {
  margin: 0;
}

.footer-brand img {
  width: 43px;
  height: 32px;
}

html[dir="rtl"] body {
  font-family: "Noto Sans Arabic", Tahoma, Arial, sans-serif;
  line-height: 1.8;
}

html[dir="rtl"] .nav-links {
  margin-right: auto;
  margin-left: 0;
}

html[dir="rtl"] h1,
html[dir="rtl"] h2 {
  line-height: 1.35;
  letter-spacing: 0;
}

html[dir="rtl"] .eyebrow,
html[dir="rtl"] .section-label,
html[dir="rtl"] .scope-kicker,
html[dir="rtl"] .coverage-status {
  letter-spacing: 0;
}

html[dir="rtl"] .tailored-strip li,
html[dir="rtl"] .brief-card li {
  padding-right: 22px;
  padding-left: 0;
}

html[dir="rtl"] .tailored-strip li::before,
html[dir="rtl"] .brief-card li::before {
  right: 0;
  left: auto;
}

@media (max-width: 940px) {
  .nav-links {
    display: none;
  }

  .language-switch {
    margin-left: auto;
  }

  .hero-layout,
  .intro-layout,
  .control-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-layout {
    padding-block: 76px;
  }

  .scope-panel {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .scope-kicker {
    grid-column: 1 / -1;
  }

  .scope-item {
    grid-template-columns: 1fr;
    border-right: 1px solid rgba(255, 255, 255, 0.12);
    border-bottom: 0;
  }

  .scope-item:last-child {
    border-right: 0;
  }

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

  .tailored-strip {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .footer-layout {
    grid-template-columns: 1fr;
    gap: 9px;
  }
}

@media (max-width: 680px) {
  :root {
    --shell: min(100% - 28px, 1180px);
  }

  .nav-shell {
    min-height: 66px;
  }

  .brand {
    font-size: 0.82rem;
  }

  .brand img {
    width: 43px;
  }

  .language-switch button {
    min-width: 43px;
  }

  .hero,
  .hero-layout {
    min-height: auto;
  }

  .hero-layout {
    gap: 45px;
    padding-block: 62px;
  }

  .hero h1 {
    font-size: clamp(2.35rem, 11vw, 3.4rem);
  }

  .hero-actions {
    display: grid;
  }

  .scope-panel,
  .service-grid,
  .storage-grid,
  .coverage-grid,
  .client-grid {
    grid-template-columns: 1fr;
  }

  .scope-item {
    min-height: 100px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .scope-item:last-child {
    border-bottom: 0;
  }

  .service-card {
    min-height: 0;
  }

  .storage-card {
    min-height: 250px;
  }

  .tailored-strip ul {
    display: grid;
  }

  .client-grid article {
    min-height: 0;
  }

  .brief-card {
    padding: 28px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}