:root {
  --bg: #07111f;
  --bg-soft: rgba(12, 24, 42, 0.72);
  --panel: rgba(17, 29, 49, 0.72);
  --panel-strong: rgba(20, 35, 59, 0.92);
  --line: rgba(255, 255, 255, 0.08);
  --text: #e8eefc;
  --muted: #b8c5e0;
  --primary: #7c9cff;
  --primary-strong: #a855f7;
  --accent: #53d3c1;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 20%, rgba(124, 156, 255, 0.25), transparent 30%),
    radial-gradient(circle at 85% 15%, rgba(168, 85, 247, 0.24), transparent 24%),
    radial-gradient(circle at 50% 75%, rgba(83, 211, 193, 0.14), transparent 25%),
    linear-gradient(145deg, #050b16 0%, #0a1426 45%, #09111d 100%);
}

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

.page-shell {
  position: relative;
  overflow: hidden;
}

.hero {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 72px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 0 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  box-shadow: 0 10px 30px rgba(124, 156, 255, 0.35);
}

.brand-name {
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  transition: color 0.2s ease, transform 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
  transform: translateY(-1px);
}

.hero-content {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 28px;
  align-items: center;
  min-height: calc(100vh - 140px);
}

.hero-copy,
.hero-card,
.section,
.link-panel {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-tag,
.panel-label,
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  color: #d7e3ff;
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.88rem;
  letter-spacing: 0.03em;
}

.hero h1 {
  margin: 20px 0 18px;
  max-width: 10ch;
  font-size: clamp(2.9rem, 7vw, 5.6rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.hero-text,
.section-description,
.info-card p,
.link-panel p,
.hero-grid p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  max-width: 640px;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 16px;
  font-weight: 600;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

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

.button.primary {
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  box-shadow: 0 20px 45px rgba(124, 156, 255, 0.28);
}

.button.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.hero-card {
  position: relative;
  z-index: 1;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(16, 29, 49, 0.82), rgba(11, 21, 36, 0.65));
  box-shadow: var(--shadow);
}

.status-pill {
  margin-bottom: 20px;
}

.hero-grid {
  display: grid;
  gap: 16px;
}

.hero-grid article {
  padding: 18px 18px 10px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-grid span {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
}

.hero-grid h2,
.section h2,
.info-card h3,
.link-panel h3 {
  margin: 12px 0 8px;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 56px;
}

.section {
  position: relative;
  padding: 34px;
  margin-bottom: 24px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--bg-soft);
  box-shadow: var(--shadow);
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
}

.section h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.1;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.info-card {
  padding: 26px;
  border-radius: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.info-card:hover,
.link-panel:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 156, 255, 0.35);
  box-shadow: 0 18px 40px rgba(8, 13, 24, 0.32);
}

.icon-chip {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(124, 156, 255, 0.22), rgba(83, 211, 193, 0.2));
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-weight: 700;
}

.link-panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.link-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 26px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.panel-arrow {
  font-size: 1.8rem;
  color: var(--accent);
}

.footer {
  padding: 0 24px 46px;
  text-align: center;
  color: var(--muted);
}

.hero-glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(24px);
  opacity: 0.6;
  pointer-events: none;
}

.hero-glow-left {
  top: 80px;
  left: -60px;
  width: 220px;
  height: 220px;
  background: rgba(124, 156, 255, 0.28);
}

.hero-glow-right {
  right: -20px;
  bottom: 100px;
  width: 260px;
  height: 260px;
  background: rgba(168, 85, 247, 0.2);
}

@media (max-width: 980px) {
  .hero-content,
  .cards,
  .link-panels {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-bottom: 48px;
  }

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

  .hero h1 {
    max-width: 100%;
  }
}

@media (max-width: 640px) {
  .hero,
  main,
  .footer {
    padding-left: 16px;
    padding-right: 16px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .section,
  .hero-card {
    padding: 22px;
    border-radius: 24px;
  }

  .button,
  .link-panel {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }
}