:root {
  --bg: #07111f;
  --bg-soft: #0f1b2d;
  --panel: rgba(10, 17, 31, 0.72);
  --panel-border: rgba(255, 255, 255, 0.1);
  --text: #e5eefb;
  --muted: #adc0de;
  --primary: #4fd1c5;
  --secondary: #7dd3fc;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.22), transparent 30%),
    radial-gradient(circle at top right, rgba(45, 212, 191, 0.18), transparent 25%),
    linear-gradient(180deg, #060d18 0%, #091321 100%);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 64px;
}

.hero,
.panel {
  background: var(--panel);
  backdrop-filter: blur(18px);
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  padding: 32px;
  align-items: center;
}

.hero-copy h1 {
  margin: 12px 0 16px;
  font-size: clamp(2.2rem, 4vw, 4.3rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.hero-copy h1 span {
  display: block;
  color: #9ae6b4;
}

.eyebrow {
  display: inline-flex;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: #d9f7ff;
  background: rgba(125, 211, 252, 0.12);
  border: 1px solid rgba(125, 211, 252, 0.18);
}

.hero-copy p,
.section-head p,
.card p,
.entry-card p,
.body-copy p,
.body-copy li,
.footer p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.button:hover,
.text-link:hover,
.back-link:hover {
  transform: translateY(-1px);
  opacity: 0.92;
}

.button.primary {
  background: linear-gradient(135deg, #2dd4bf, #38bdf8);
  color: #04101c;
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}

.hero-art img,
.entry-hero img {
  width: 100%;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

main {
  display: grid;
  gap: 24px;
  margin-top: 24px;
}

.panel { padding: 28px; }
.grid.three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card,
.entry-card {
  padding: 22px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.card h3,
.entry-card h3,
.body-copy h2 {
  margin-top: 0;
}
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.entry-date {
  font-size: 0.92rem;
  color: #8dd3ff;
  margin-bottom: 10px;
}
.text-link,
.back-link {
  color: #8cf0cf;
  font-weight: 700;
}
.footer {
  text-align: center;
  padding: 22px 0 8px;
}

.entry-layout {
  display: grid;
  gap: 24px;
}
.entry-hero {
  display: grid;
  gap: 20px;
}
.entry-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: #bce3ff;
}
.body-copy ul {
  padding-left: 1.25rem;
  margin-top: 0;
}
.body-copy blockquote {
  margin: 0;
  padding: 18px 20px;
  border-left: 4px solid #4fd1c5;
  background: rgba(79, 209, 197, 0.08);
  border-radius: 0 18px 18px 0;
  color: #effffb;
}

@media (max-width: 900px) {
  .hero,
  .grid.three {
    grid-template-columns: 1fr;
  }

  .page-shell {
    width: min(100% - 20px, 1180px);
  }

  .hero,
  .panel {
    padding: 22px;
  }

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