:root {
  --bg: #05070b;
  --panel: rgba(255, 255, 255, 0.075);
  --line: rgba(202, 240, 255, 0.18);
  --text: #f6fbff;
  --muted: rgba(232, 242, 248, 0.72);
  --dim: rgba(232, 242, 248, 0.52);
  --cyan: #7beff5;
  --mint: #86f0c8;
  --violet: #b9a4ff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 34%, rgba(123, 239, 245, 0.22), transparent 28rem),
    radial-gradient(circle at 78% 16%, rgba(185, 164, 255, 0.18), transparent 26rem),
    linear-gradient(180deg, #030407 0%, #0a1018 52%, #030407 100%);
  color: var(--text);
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

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

#particle-field {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.7;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(110deg, transparent 0 24%, rgba(123, 239, 245, 0.08) 24.1% 24.25%, transparent 24.4%),
    linear-gradient(72deg, transparent 0 64%, rgba(185, 164, 255, 0.08) 64.1% 64.25%, transparent 64.45%);
  content: "";
  pointer-events: none;
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  min-height: 100vh;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(32px, 6vw, 82px);
  align-items: center;
  padding: clamp(48px, 8vw, 88px) 0;
}

.portrait-wrap {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(202, 240, 255, 0.18);
  background:
    radial-gradient(circle at 42% 34%, rgba(123, 239, 245, 0.22), transparent 18rem),
    rgba(255, 255, 255, 0.055);
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.46);
}

.portrait-wrap::after {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  content: "";
  pointer-events: none;
}

.portrait-wrap img {
  display: block;
  width: 100%;
  aspect-ratio: 0.86;
  object-fit: cover;
  object-position: center 22%;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 2.8px;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(64px, 9vw, 126px);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 22px;
  font-size: clamp(34px, 5vw, 62px);
  line-height: 1.08;
}

h3 {
  margin-bottom: 12px;
  font-size: 24px;
  line-height: 1.28;
}

.lead {
  color: var(--text);
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.35;
}

.intro p:not(.eyebrow):not(.lead),
.focus-grid p,
.timeline p {
  color: var(--muted);
  font-size: 18px;
}

.section-shell {
  padding: 50px 0;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.focus-grid article,
.timeline article {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel), rgba(255, 255, 255, 0.032));
  box-shadow: 0 18px 58px rgba(0, 0, 0, 0.24);
  padding: 26px;
}

.focus-grid span,
.timeline time {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--mint);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 1.6px;
}

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

.site-footer {
  display: flex;
  justify-content: center;
  padding: 44px 16px 34px;
  color: var(--dim);
  font-size: 14px;
  text-align: center;
}

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

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 860px) {
  .hero,
  .focus-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .portrait-wrap img {
    aspect-ratio: 0.95;
  }
}

@media (max-width: 560px) {
  main {
    width: min(100% - 24px, 1180px);
  }

  h1 {
    font-size: 58px;
  }

  .lead {
    font-size: 22px;
  }

  .focus-grid article,
  .timeline article {
    padding: 22px;
  }
}