:root {
  --bg: #f5f5ef;
  --panel: #fffdf9;
  --ink: #1f2a37;
  --muted: #5f6772;
  --line: #d9d6cd;
  --accent: #0d9488;
  --accent-soft: #d8f3ef;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top right, #fff8cc 0%, transparent 35%),
    radial-gradient(circle at left, #d8f3ef 0%, transparent 30%), var(--bg);
  min-height: 100vh;
}

.container {
  width: min(1160px, 92vw);
  margin: 0 auto;
  padding: 28px 0 52px;
}

.hero h1,
.results h2,
.logic-map h2 {
  font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  letter-spacing: 0.06em;
  font-weight: 700;
}

h1 {
  margin: 6px 0;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.subtitle {
  margin: 0 0 18px;
  color: var(--muted);
}

.controls {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 210px;
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 15px;
}

.stats {
  margin-top: 10px;
  color: var(--muted);
}

.logic-map,
.results {
  margin-top: 28px;
}

.map-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.map-item {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 14px;
  padding: 12px;
}

.map-item h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.map-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  padding: 14px;
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.id {
  font-weight: 700;
  color: var(--accent);
}

.section-tag {
  font-size: 12px;
  color: var(--muted);
  background: var(--accent-soft);
  padding: 2px 8px;
  border-radius: 999px;
}

.pattern {
  margin: 0 0 8px;
  font-size: 1.14rem;
}

.meaning,
.example {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.example {
  margin-top: 8px;
  color: #334155;
}

.bg-glow {
  position: fixed;
  z-index: -1;
  filter: blur(45px);
  opacity: 0.5;
  pointer-events: none;
}

.bg-glow-1 {
  width: 220px;
  height: 220px;
  top: 40px;
  right: 60px;
  background: #bbf7d0;
}

.bg-glow-2 {
  width: 180px;
  height: 180px;
  bottom: 80px;
  left: 8%;
  background: #fde68a;
}

@media (max-width: 760px) {
  body {
    background: linear-gradient(180deg, #fff8cc 0%, #f5f5ef 30%, #f5f5ef 100%);
  }

  .container {
    width: 94vw;
    padding: 14px 0 28px;
  }

  .hero {
    position: sticky;
    top: 0;
    z-index: 10;
    padding: 8px 0 10px;
    background: rgba(245, 245, 239, 0.94);
    backdrop-filter: blur(6px);
  }

  h1 {
    margin: 4px 0;
    font-size: 1.5rem;
    line-height: 1.3;
  }

  .subtitle {
    margin-bottom: 12px;
    font-size: 0.92rem;
  }

  .controls {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  input,
  select {
    font-size: 16px;
    padding: 11px 12px;
  }

  .stats {
    margin-top: 8px;
    font-size: 0.88rem;
  }

  .logic-map,
  .results {
    margin-top: 20px;
  }

  .logic-map h2,
  .results h2 {
    font-size: 1.15rem;
    margin: 0 0 10px;
  }

  .map-grid {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .map-item {
    border-radius: 12px;
    padding: 10px 11px;
  }

  .cards {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .card {
    border-radius: 12px;
    padding: 12px;
  }

  .pattern {
    font-size: 1.05rem;
  }

  .meaning,
  .example {
    font-size: 0.94rem;
  }

  .bg-glow {
    display: none;
  }
}