:root {
  --ink: #0d1726;
  --muted: #5d6878;
  --soft: #eef5fb;
  --line: #d9e4ef;
  --paper: #f6f9fc;
  --white: #ffffff;
  --blue: #126ff2;
  --cyan: #16b6d6;
  --green: #16a36d;
  --deep: #071426;
  --shadow: 0 24px 70px rgba(11, 31, 58, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 78px;
  padding: 12px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(217, 228, 239, 0.8);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.brand img {
  display: block;
  width: clamp(180px, 20vw, 260px);
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.8vw, 34px);
  color: #344155;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--blue);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.78fr);
  gap: clamp(34px, 6vw, 90px);
  align-items: center;
  min-height: 92vh;
  padding: 150px clamp(20px, 6vw, 84px) 74px;
  background:
    radial-gradient(circle at 88% 18%, rgba(22, 182, 214, 0.18), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #f7fbff 56%, #eef5fb 100%);
  overflow: hidden;
}

.hero-content {
  min-width: 0;
  max-width: 850px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 900px;
  margin-bottom: 24px;
  color: var(--deep);
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.05;
  letter-spacing: 0;
}

h1 span {
  display: block;
}

h2 {
  margin-bottom: 0;
  color: var(--deep);
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.15;
  letter-spacing: 0;
}

h3 {
  color: var(--deep);
}

.hero-copy {
  max-width: 800px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
}

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

.primary-action,
.secondary-action {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 0 22px;
  font-weight: 900;
}

.primary-action {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 16px 34px rgba(18, 111, 242, 0.2);
}

.secondary-action {
  border: 1px solid var(--line);
  color: var(--deep);
  background: rgba(255, 255, 255, 0.72);
}

.primary-action.light {
  color: var(--deep);
  background: var(--white);
  box-shadow: none;
}

.hero-panel {
  position: relative;
  display: grid;
  min-width: 0;
  gap: 28px;
  align-content: center;
  min-height: 440px;
  border: 1px solid rgba(217, 228, 239, 0.9);
  border-radius: 8px;
  padding: clamp(28px, 4vw, 48px);
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(239, 247, 255, 0.78)),
    var(--white);
  box-shadow: var(--shadow);
}

.hero-panel::before {
  position: absolute;
  inset: auto -16% -28% 32%;
  height: 260px;
  content: "";
  background: radial-gradient(circle, rgba(22, 182, 214, 0.2), transparent 64%);
  pointer-events: none;
}

.hero-panel img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.panel-lines {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 10px;
}

.panel-lines span {
  height: 9px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(18, 111, 242, 0.85), rgba(22, 182, 214, 0.16));
}

.panel-lines span:nth-child(2) {
  width: 78%;
  background: linear-gradient(90deg, rgba(22, 182, 214, 0.75), rgba(22, 163, 109, 0.16));
}

.panel-lines span:nth-child(3) {
  width: 56%;
  background: linear-gradient(90deg, rgba(22, 163, 109, 0.75), rgba(18, 111, 242, 0.12));
}

.signal-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
}

.signal-grid span {
  border: 1px solid rgba(217, 228, 239, 0.9);
  border-radius: 8px;
  padding: 13px 14px;
  color: #334155;
  background: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  font-weight: 900;
}

.intro-band,
.section,
.capability-section,
.contact-section,
.site-footer {
  position: relative;
  z-index: 1;
}

.intro-band {
  padding: 34px clamp(20px, 6vw, 84px);
  background: var(--deep);
}

.intro-band p {
  max-width: 1120px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(20px, 2.8vw, 34px);
  font-weight: 900;
  line-height: 1.3;
}

.section,
.capability-section {
  padding: clamp(70px, 9vw, 118px) clamp(20px, 6vw, 84px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

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

.direction-card {
  min-height: 280px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
  background: var(--white);
}

.direction-card.featured {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(18, 111, 242, 0.92), rgba(22, 182, 214, 0.74)),
    var(--blue);
}

.card-label {
  display: block;
  margin-bottom: 72px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.direction-card.featured .card-label,
.direction-card.featured h3,
.direction-card.featured p {
  color: rgba(255, 255, 255, 0.9);
}

.direction-card h3,
.timeline h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.25;
}

.direction-card p,
.capability-copy p,
.timeline p,
.capability-list span {
  color: var(--muted);
}

.capability-section {
  background: var(--white);
}

.capability-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.86fr) minmax(420px, 1.14fr);
  gap: clamp(30px, 6vw, 82px);
  align-items: start;
}

.capability-copy h3 {
  max-width: 620px;
  margin-bottom: 18px;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.2;
}

.capability-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.capability-list div {
  min-height: 168px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: #f8fbff;
}

.capability-list strong {
  display: block;
  margin-bottom: 16px;
  color: var(--deep);
  font-size: 20px;
}

.capability-list span {
  display: block;
}

.approach-section {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.68)),
    var(--paper);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  min-height: 238px;
  border-top: 4px solid var(--deep);
  padding: 22px 4px 0;
}

.timeline span {
  display: inline-flex;
  min-width: 48px;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  margin-bottom: 34px;
  border-radius: 8px;
  color: var(--white);
  background: var(--deep);
  font-weight: 900;
}

.contact-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: clamp(54px, 8vw, 92px) clamp(20px, 6vw, 84px);
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(18, 111, 242, 0.92), rgba(22, 163, 109, 0.72)),
    var(--deep);
}

.contact-section .eyebrow,
.contact-section p {
  color: rgba(255, 255, 255, 0.78);
}

.contact-section h2 {
  max-width: 800px;
  margin-bottom: 14px;
  color: var(--white);
}

.contact-section p {
  max-width: 720px;
  margin-bottom: 0;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(20px, 6vw, 84px);
  color: var(--muted);
  background: var(--white);
  font-size: 14px;
}

.record-footer {
  display: flex;
  justify-content: center;
  gap: 18px;
  padding: 0 clamp(20px, 6vw, 84px) 26px;
  color: #7a8594;
  background: var(--white);
  font-size: 13px;
}

.record-footer a:hover {
  color: var(--blue);
}

@media (max-width: 1080px) {
  .hero,
  .capability-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 128px;
  }

  .hero-panel {
    min-height: auto;
  }

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

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

}

@media (max-width: 760px) {
  .site-header {
    position: absolute;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    min-height: auto;
    padding: 14px 18px;
  }

  .brand img {
    width: 160px;
  }

  .nav-links {
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-start;
    max-width: none;
    gap: 6px 12px;
    font-size: 13px;
  }

  .hero {
    width: 100vw;
    max-width: 100vw;
    padding: 152px 20px 54px;
  }

  .hero-content {
    width: calc(100vw - 40px);
    max-width: calc(100vw - 40px);
  }

  h1 {
    max-width: calc(100vw - 40px);
    font-size: clamp(32px, 9.2vw, 38px);
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  .hero-copy {
    font-size: 16px;
  }

  .signal-grid,
  .direction-grid,
  .capability-list,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    width: calc(100vw - 40px);
    max-width: calc(100vw - 40px);
    padding: 24px 28px;
  }

  .hero-panel img {
    width: min(100%, 280px);
  }

  .direction-card,
  .capability-list div {
    min-height: auto;
  }

  .card-label {
    margin-bottom: 34px;
  }

  .intro-band,
  .section,
  .capability-section,
  .contact-section,
  .site-footer {
    padding-left: 20px;
    padding-right: 20px;
  }

  .contact-section,
  .site-footer,
  .record-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .record-footer {
    gap: 8px;
  }
}