:root {
  color-scheme: light dark;
  --bg: #f5f5f7;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-solid: #ffffff;
  --text: #1d1d1f;
  --secondary: #6e6e73;
  --line: rgba(0, 0, 0, 0.09);
  --accent: #0071e3;
  --accent-soft: #e8f2ff;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background: radial-gradient(circle at 50% 0%, rgba(0, 113, 227, 0.12), transparent 36rem), var(--bg);
}

button, input { font: inherit; }
.shell { width: min(100% - 32px, 1080px); margin: 0 auto; padding: max(32px, env(safe-area-inset-top)) 0 48px; }
.hero { max-width: 760px; margin: 0 auto 28px; text-align: center; }
.eyebrow { margin: 0 0 10px; color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: 0.18em; }
h1 { margin: 0; font-size: clamp(30px, 8vw, 58px); line-height: 1.08; letter-spacing: -0.045em; }
.lead { margin: 18px auto 0; max-width: 640px; color: var(--secondary); font-size: clamp(16px, 3.8vw, 20px); line-height: 1.65; }
.privacy { color: var(--secondary); font-size: 13px; }
.panel, .result-card, .summary-card { background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); backdrop-filter: blur(20px); }
.panel { display: grid; gap: 20px; max-width: 680px; margin: 0 auto; padding: 22px; border-radius: 24px; }
.field { display: grid; gap: 9px; border: 0; padding: 0; margin: 0; }
.field > span, legend { font-size: 14px; font-weight: 650; }
.field strong { color: #d70015; font-size: 12px; }
.field em { color: var(--secondary); font-size: 12px; font-style: normal; font-weight: 500; }
input[type="tel"], input[type="date"] { width: 100%; min-height: 52px; padding: 0 16px; color: var(--text); background: var(--surface-solid); border: 1px solid var(--line); border-radius: 14px; outline: none; }
input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.13); }
.segments { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.segments label { display: grid; place-items: center; min-height: 44px; padding: 0 8px; background: var(--surface-solid); border: 1px solid var(--line); border-radius: 12px; cursor: pointer; }
.segments input { position: absolute; opacity: 0; }
.segments label:has(input:checked) { color: var(--accent); background: var(--accent-soft); border-color: rgba(0, 113, 227, 0.32); }
.error { min-height: 20px; margin: -6px 0 0; color: #d70015; font-size: 14px; }
.primary-button { min-height: 54px; border: 0; border-radius: 16px; color: white; background: var(--accent); font-size: 17px; font-weight: 650; cursor: pointer; }
.primary-button:active { transform: scale(0.99); }
.result { margin-top: 34px; }
.result-header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; margin-bottom: 16px; }
.result-header h2 { margin: 0; font-size: 28px; }
.result-header p { margin: 0; color: var(--secondary); font-variant-numeric: tabular-nums; }
.number-state { margin: 0 0 14px; padding: 14px 16px; color: var(--text); background: var(--accent-soft); border: 1px solid rgba(0, 113, 227, 0.18); border-radius: 16px; font-size: 15px; font-weight: 600; line-height: 1.55; }`n.age-note { color: var(--secondary); font-size: 13px; }
.result-card { margin: 14px 0; padding: 20px; border-radius: 22px; }
.card-top { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.sequence { color: var(--secondary); font-size: 12px; }
.digits { font-size: 28px; letter-spacing: -0.04em; }
.pair, .magnet, .energy, .badges span { padding: 5px 9px; border-radius: 999px; font-size: 12px; }
.pair { color: var(--secondary); background: rgba(0, 0, 0, 0.045); }`n.magnet { color: var(--accent); background: var(--accent-soft); }
.energy { color: var(--secondary); background: rgba(0, 0, 0, 0.05); }
.badges { display: flex; gap: 7px; margin-top: 12px; }
.badges span { color: var(--secondary); border: 1px solid var(--line); }`n.auxiliary-note { margin: 12px 0 0; color: var(--accent); font-size: 13px; font-weight: 600; }
.card-section { margin-top: 16px; }
.card-section h4, .summary-card h4 { margin: 0 0 7px; font-size: 14px; }
.card-section ul { margin: 0; padding-left: 18px; color: #3a3a3c; line-height: 1.7; }
.card-section p { margin: 0; color: #3a3a3c; line-height: 1.7; }
.muted { color: var(--secondary); }
.summary { margin-top: 0; }`n.narrative { margin-top: 28px; padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: 22px; }`n.narrative-conclusion { margin: 8px 0 16px; padding: 14px 16px; color: var(--text); background: var(--accent-soft); border-radius: 16px; font-size: 16px; font-weight: 650; line-height: 1.65; }`n.narrative-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; }`n.narrative-node { padding: 7px 10px; color: var(--text); background: var(--surface-solid); border: 1px solid var(--line); border-radius: 12px; font-size: 13px; font-weight: 600; }`n.narrative-node.result-node { color: white; background: var(--accent); border-color: var(--accent); }`n.narrative-arrow { color: var(--secondary); }`n.narrative-copy { margin-top: 16px; }`n.narrative-copy p, .narrative-focus { margin: 10px 0 0; color: #3a3a3c; line-height: 1.75; }`n.narrative-focus { padding-top: 12px; border-top: 1px solid var(--line); color: var(--text); font-weight: 650; }`n.section-note { margin: 6px 0 14px; color: var(--secondary); font-size: 13px; }`n.combination-card { margin-top: 10px; padding: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; }`n.combination-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--text); font-size: 14px; font-weight: 650; }`n.combination-raw { padding: 5px 9px; background: rgba(0, 0, 0, 0.045); border-radius: 999px; }`n.combination-arrow { color: var(--accent); }`n.combination-card p { margin: 10px 0 0; color: #3a3a3c; line-height: 1.7; }`n.special-notes { margin-top: 28px; padding: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; }`n.special-notes h3 { margin: 0 0 10px; font-size: 21px; }`n.special-notes ul { margin: 0; padding-left: 20px; color: #3a3a3c; line-height: 1.7; }`n.breakdown-title { margin: 32px 0 14px; font-size: 25px; }
.summary > h3 { font-size: 25px; }
.summary-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
.summary-card { padding: 18px; border-radius: 20px; }
.summary-card p { margin: 8px 0 0; color: #3a3a3c; line-height: 1.7; }
.footer { max-width: 680px; margin: 32px auto 0; color: var(--secondary); font-size: 12px; line-height: 1.7; text-align: center; }

@media (min-width: 760px) {
  .summary-grid { grid-template-columns: repeat(2, 1fr); }
  .result-card { padding: 26px; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --surface: rgba(28, 28, 30, 0.9);
    --surface-solid: #1c1c1e;
    --text: #f5f5f7;
    --secondary: #a1a1a6;
    --line: rgba(255, 255, 255, 0.12);
    --accent: #2997ff;
    --accent-soft: rgba(41, 151, 255, 0.14);
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  }
  .card-section ul, .card-section p, .summary-card p { color: #d1d1d6; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}