:root {
  color-scheme: dark;
  --bg: #050606;
  --bg-soft: #0d1010;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-strong: rgba(255, 255, 255, 0.1);
  --border: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.66);
  --faint: rgba(255, 255, 255, 0.4);
  --accent: #d8ff11;
  --accent-soft: rgba(216, 255, 17, 0.16);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --max: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  background:
    radial-gradient(circle at 15% 20%, rgba(216, 255, 17, 0.14), transparent 32%),
    radial-gradient(circle at 80% 10%, rgba(255, 255, 255, 0.08), transparent 24%),
    radial-gradient(circle at 75% 82%, rgba(216, 255, 17, 0.08), transparent 28%),
    linear-gradient(180deg, #060707 0%, #050606 60%, #040505 100%);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: transparent;
  font-family:
    "Avenir Next",
    "SF Pro Text",
    "PingFang SC",
    "Hiragino Sans GB",
    "Noto Sans CJK SC",
    sans-serif;
  line-height: 1.65;
}

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

a:hover {
  color: var(--accent);
}

.shell {
  width: min(var(--max), calc(100vw - 40px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand strong {
  font-size: 0.92rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
}

.brand span {
  font-size: 0.92rem;
  color: var(--muted);
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 0.92rem;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.chip:hover {
  transform: translateY(-1px);
  border-color: rgba(216, 255, 17, 0.45);
  background: rgba(216, 255, 17, 0.1);
}

.hero {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 18px;
  align-items: stretch;
  margin-bottom: 18px;
}

.panel {
  position: relative;
  overflow: hidden;
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(216, 255, 17, 0.12), transparent 34%);
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.1;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  letter-spacing: -0.04em;
}

.lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 1.05rem;
  color: var(--muted);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.meta {
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.28);
}

.meta .label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.meta .value {
  font-size: 0.98rem;
  color: var(--text);
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.card {
  padding: 24px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.045);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.card h2 {
  margin-bottom: 14px;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0 0 12px;
  color: var(--muted);
}

.card p:last-child {
  margin-bottom: 0;
}

.card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.card li + li {
  margin-top: 8px;
}

.card ul + p {
  margin-top: 12px;
}

.callout {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(216, 255, 17, 0.22);
  background: var(--accent-soft);
  color: var(--text);
}

.callout strong {
  display: block;
  margin-bottom: 4px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  margin-top: 7px;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(216, 255, 17, 0.12);
  flex: 0 0 auto;
}

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

.card a:not(.chip),
.lede a {
  color: var(--accent);
}

.points {
  display: grid;
  gap: 12px;
}

.footer a {
  color: var(--muted);
}

.footer a + a::before {
  content: "·";
  margin: 0 10px;
  color: var(--faint);
}

.footer {
  margin-top: 18px;
  padding: 18px 6px 0;
  color: var(--faint);
  font-size: 0.9rem;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--accent);
  font-size: 0.86rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.rule {
  height: 1px;
  margin: 16px 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
}

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

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

  /* Cards pick a column span inline (span 5/6/7); on a phone every card takes the full row. */
  .section-grid > .card {
    grid-column: 1 / -1 !important;
  }

  .panel {
    padding: 24px 20px;
  }

  .topbar {
    border-radius: 28px;
    align-items: flex-start;
    flex-direction: column;
  }
}