* {
  box-sizing: border-box;
}

:root {
  --ink: #0f1720;
  --muted: #5f6f7a;
  --line: rgba(28, 83, 113, 0.16);
  --panel: rgba(255, 255, 255, 0.88);
  --teal: #16a3a7;
  --blue: #2266d2;
  --gold: #d7a84f;
  --coral: #e56b55;
  --shadow: 0 24px 70px rgba(18, 63, 88, 0.14);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 8%, rgba(22, 163, 167, 0.2), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(215, 168, 79, 0.16), transparent 24rem),
    linear-gradient(135deg, #f7fbfb 0%, #eef6f5 48%, #fdf9ef 100%);
  color: var(--ink);
  font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
}

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

.site-shell {
  min-height: 100vh;
  overflow: hidden;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: calc(100% - 40px);
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 0;
  backdrop-filter: blur(16px);
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 12px 30px rgba(34, 102, 210, 0.24);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 16px;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 8px;
  color: #3b4d58;
  font-size: 14px;
}

.nav-links a {
  border-radius: 6px;
  padding: 9px 12px;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.74);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.78fr);
  align-items: center;
  gap: 44px;
  width: calc(100% - 40px);
  max-width: 1180px;
  min-height: calc(100vh - 82px);
  margin: 0 auto;
  padding: 48px 0 86px;
}

.section-kicker {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1.06;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.16;
}

h3 {
  margin-bottom: 12px;
  font-size: 23px;
}

.hero-lead,
.section-heading p,
.split-band p,
.vision-card p {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.78;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 8px;
  padding: 0 22px;
  font-weight: 800;
}

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

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

.memory-orbit {
  position: relative;
  min-height: 520px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(rgba(34, 102, 210, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 102, 210, 0.08) 1px, transparent 1px),
    rgba(255, 255, 255, 0.54);
  background-size: 32px 32px;
  box-shadow: var(--shadow);
}

.memory-orbit::before,
.memory-orbit::after {
  position: absolute;
  border: 1px solid rgba(34, 102, 210, 0.22);
  border-radius: 50%;
  content: "";
}

.memory-orbit::before {
  inset: 74px 44px;
}

.memory-orbit::after {
  inset: 136px 104px;
  border-color: rgba(22, 163, 167, 0.28);
}

.orbit-panel {
  position: absolute;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.84);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 18px 44px rgba(28, 83, 113, 0.15);
}

.main-panel {
  top: 50%;
  left: 50%;
  display: grid;
  width: 230px;
  height: 140px;
  place-items: center;
  transform: translate(-50%, -50%);
  text-align: center;
}

.main-panel span {
  color: var(--muted);
  font-size: 14px;
}

.main-panel strong {
  color: #123f58;
  font-size: 22px;
}

.panel-a,
.panel-b,
.panel-c {
  padding: 16px 18px;
  font-weight: 800;
}

.panel-a {
  top: 86px;
  left: 54px;
  color: var(--teal);
}

.panel-b {
  right: 46px;
  top: 146px;
  color: var(--blue);
}

.panel-c {
  right: 96px;
  bottom: 82px;
  color: var(--coral);
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  width: calc(100% - 40px);
  max-width: 1180px;
  margin: -46px auto 72px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  box-shadow: var(--shadow);
}

.proof-strip div {
  padding: 26px;
  background: rgba(255, 255, 255, 0.9);
}

.proof-strip strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
}

.proof-strip span {
  color: var(--muted);
}

.content-band,
.split-band,
.journey-band,
.vision-band {
  width: calc(100% - 40px);
  max-width: 1180px;
  margin: 0 auto;
  padding: 82px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  align-items: end;
  margin-bottom: 34px;
}

.section-heading .section-kicker {
  grid-column: 1 / -1;
  margin-bottom: -18px;
}

.section-heading.compact {
  display: block;
  max-width: 720px;
  margin-bottom: 36px;
}

.section-heading.compact .section-kicker {
  display: block;
  margin-bottom: 14px;
}

.section-heading.compact h2 {
  max-width: 700px;
  margin-bottom: 0;
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.22;
  overflow-wrap: break-word;
}

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

.feature-card {
  min-height: 264px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  background: var(--panel);
  box-shadow: 0 16px 40px rgba(18, 63, 88, 0.1);
}

.feature-card span {
  display: inline-block;
  margin-bottom: 26px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
}

.feature-card p,
.capability-list li,
.timeline-step strong {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.68;
}

.split-band {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  gap: 50px;
  align-items: start;
}

.capability-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.capability-list li {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px 22px 20px 54px;
  background: rgba(255, 255, 255, 0.78);
}

.capability-list li::before {
  position: absolute;
  top: 23px;
  left: 22px;
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--gold), var(--coral));
  content: "";
}

.journey-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.timeline-step {
  min-height: 150px;
  border-radius: 8px;
  padding: 22px;
  background: #102b3a;
  color: #fff;
}

.timeline-step span {
  display: block;
  margin-bottom: 34px;
  color: #8ee3df;
  font-size: 14px;
  font-weight: 800;
}

.timeline-step strong {
  color: #fff;
  font-size: 20px;
}

.vision-band {
  padding-top: 94px;
}

.vision-card {
  border-radius: 8px;
  padding: clamp(34px, 6vw, 72px);
  background:
    linear-gradient(120deg, rgba(16, 43, 58, 0.94), rgba(18, 86, 106, 0.9)),
    #102b3a;
  color: #fff;
  box-shadow: var(--shadow);
}

.vision-card .section-kicker,
.vision-card p {
  color: #bceeed;
}

.vision-card h2 {
  max-width: 840px;
}

.site-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: calc(100% - 40px);
  max-width: 1180px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
  padding: 28px 0 42px;
  color: var(--muted);
  font-size: 14px;
}

.site-footer a {
  color: #3b4d58;
}

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

@media (max-width: 900px) {
  .topbar {
    position: relative;
  }

  .nav-links {
    display: none;
  }

  .hero,
  .section-heading,
  .split-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 34px;
  }

  .memory-orbit {
    min-height: 410px;
  }

  .proof-strip,
  .card-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .proof-strip {
    margin-top: -28px;
  }
}

@media (max-width: 560px) {
  .topbar,
  .hero,
  .proof-strip,
  .content-band,
  .split-band,
  .journey-band,
  .vision-band,
  .site-footer {
    width: calc(100% - 28px);
  }

  h1 {
    font-size: 38px;
  }

  .hero-lead,
  .section-heading p,
  .split-band p,
  .vision-card p {
    font-size: 16px;
  }

  .memory-orbit {
    min-height: 360px;
  }

  .main-panel {
    width: 190px;
    height: 118px;
  }

  .panel-a,
  .panel-b,
  .panel-c {
    padding: 12px 14px;
    font-size: 14px;
  }

  .panel-a {
    left: 18px;
  }

  .panel-b {
    right: 18px;
  }

  .panel-c {
    right: 34px;
    bottom: 50px;
  }

}