:root {
  --ink: #172033;
  --muted: #5b6577;
  --line: #dde5ef;
  --navy: #071b33;
  --blue: #1c6dd0;
  --cyan: #19b6b1;
  --orange: #f08a24;
  --green: #2d9b6f;
  --paper: #ffffff;
  --soft: #f4f8fb;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 30;
  height: 72px;
  padding: 0 clamp(18px, 5vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(7, 27, 51, .88);
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  min-width: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  font-weight: 900;
}

.brand-name {
  font-size: 17px;
  font-weight: 800;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: rgba(255, 255, 255, .84);
  font-size: 14px;
  font-weight: 700;
}

.site-nav a:hover {
  color: #fff;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 8px;
  background: rgba(255, 255, 255, .1);
  padding: 10px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: #fff;
}

.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy);
}

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

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(7, 27, 51, .96) 0%, rgba(7, 27, 51, .84) 38%, rgba(7, 27, 51, .28) 72%, rgba(7, 27, 51, .1) 100%),
    linear-gradient(180deg, rgba(7, 27, 51, .28), rgba(7, 27, 51, .72));
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding-top: 72px;
  color: #fff;
}

.eyebrow,
.section-heading span,
.split-copy span,
.about-main span,
.contact-section span {
  display: inline-flex;
  color: var(--cyan);
  font-weight: 900;
  font-size: 13px;
}

.hero h1 {
  max-width: 760px;
  margin: 18px 0 18px;
  font-size: clamp(36px, 7vw, 68px);
  line-height: 1.08;
}

.hero-copy {
  max-width: 720px;
  margin: 0;
  color: rgba(255, 255, 255, .82);
  font-size: clamp(16px, 2.2vw, 20px);
  line-height: 1.8;
}

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

.primary-action,
.secondary-action {
  height: 48px;
  padding: 0 24px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
}

.primary-action {
  color: #fff;
  background: var(--blue);
}

.secondary-action {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .42);
}

.section {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 82px 0;
}

.service-band {
  padding-top: 54px;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 32px;
}

.section-heading h2,
.split-copy h2,
.about-main h2,
.contact-section h2 {
  margin: 10px 0 12px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
}

.section-heading p,
.split-copy p,
.about-main p,
.contact-section p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
  font-size: 16px;
}

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

.service-card,
.solution-list article,
.process-line div,
.contact-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.service-card {
  padding: 24px;
  min-height: 230px;
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--navy);
  font-weight: 900;
}

.service-card:nth-child(2) .service-icon {
  background: var(--blue);
}

.service-card:nth-child(3) .service-icon {
  background: var(--green);
}

.service-card:nth-child(4) .service-icon {
  background: var(--orange);
}

.service-card h3,
.solution-list h3,
.process-line h3 {
  margin: 18px 0 10px;
  font-size: 19px;
}

.service-card p,
.solution-list p,
.process-line p,
.company-facts dd,
.contact-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr);
  gap: 46px;
  align-items: start;
}

.solution-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.solution-list article {
  padding: 22px;
  background: var(--soft);
}

.process-section {
  width: 100%;
  max-width: none;
  background: var(--navy);
  color: #fff;
}

.process-section .section-heading,
.process-line {
  width: min(1120px, calc(100% - 36px));
  margin-left: auto;
  margin-right: auto;
}

.process-section .section-heading p {
  color: rgba(255, 255, 255, .72);
}

.process-line {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.process-line div {
  padding: 24px;
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .16);
}

.process-line strong {
  color: var(--cyan);
  font-size: 15px;
}

.process-line p {
  color: rgba(255, 255, 255, .7);
}

.about-section {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  gap: 48px;
  align-items: start;
}

.about-main p + p {
  margin-top: 14px;
}

.company-facts {
  margin: 0;
  display: grid;
  gap: 14px;
}

.company-facts div {
  padding: 16px 18px;
  border-left: 4px solid var(--blue);
  background: var(--soft);
}

.company-facts dt {
  color: var(--ink);
  font-weight: 900;
  margin-bottom: 6px;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, 1fr);
  gap: 42px;
  align-items: start;
  padding-top: 52px;
}

.contact-panel {
  padding: 24px;
  box-shadow: 0 18px 42px rgba(23, 32, 51, .08);
}

.contact-panel p + p {
  margin-top: 14px;
}

.contact-panel strong {
  display: inline-block;
  min-width: 86px;
  color: var(--ink);
}

.contact-panel a {
  color: var(--blue);
  font-weight: 800;
  word-break: break-all;
}

.site-footer {
  padding: 28px 18px;
  text-align: center;
  color: rgba(255, 255, 255, .7);
  background: #081320;
  font-size: 14px;
}

.site-footer p {
  margin: 6px 0;
}

.site-footer a {
  color: rgba(255, 255, 255, .82);
}

@media (max-width: 920px) {
  .site-nav {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 80px;
    display: none;
    padding: 14px;
    border-radius: 8px;
    background: rgba(7, 27, 51, .98);
    border: 1px solid rgba(255, 255, 255, .14);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

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

  .site-nav a {
    padding: 13px 10px;
  }

  .menu-toggle {
    display: block;
  }

  .brand-name {
    font-size: 15px;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

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

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

@media (max-width: 620px) {
  .site-header {
    height: 64px;
    padding: 0 14px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .hero {
    min-height: 86vh;
  }

  .hero-inner {
    padding-top: 64px;
  }

  .service-grid,
  .solution-list,
  .process-line {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 58px 0;
  }

  .contact-panel strong {
    display: block;
    margin-bottom: 4px;
  }
}