:root {
  --paper: #f6efe0;
  --card: #fdfaf2;
  --ink: #2c2a26;
  --ink-light: #6b6457;
  --border: #d8cdb4;
  --accent: #9e2b25;
  --accent-soft: #f3e3dc;
  --gold: #8a6d2f;
  --wx-mu: #2f7d4f;
  --wx-huo: #c0392b;
  --wx-tu: #8d6e3f;
  --wx-jin: #b08a1e;
  --wx-shui: #2b6f9e;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--paper);
  background-image: radial-gradient(rgba(158, 43, 37, 0.035) 1px, transparent 1px);
  background-size: 26px 26px;
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", "SimSun", "STSong", serif;
  line-height: 1.75;
}

.page { max-width: 880px; margin: 0 auto; padding: 36px 18px 60px; }

/* ---------- Header ---------- */
.site-header { text-align: center; margin-bottom: 34px; }
.seal {
  display: inline-flex; align-items: center; justify-content: center;
  width: 64px; height: 64px; margin-bottom: 14px;
  background: var(--accent); color: #fdf6ec;
  font-size: 34px; font-weight: 700;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(158, 43, 37, 0.35);
}
.site-header h1 { font-size: 30px; letter-spacing: 6px; font-weight: 700; }
.subtitle { color: var(--ink-light); margin-top: 8px; font-size: 14.5px; letter-spacing: 1px; }

/* ---------- Cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px 28px;
  margin-bottom: 26px;
  box-shadow: 0 2px 10px rgba(90, 70, 40, 0.07);
}
.card-title {
  font-size: 19px; font-weight: 700; letter-spacing: 2px;
  margin-bottom: 18px; display: flex; align-items: center; gap: 10px;
}
.card-title .num {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 30px; height: 30px; padding: 0 4px;
  background: var(--accent); color: #fdf6ec;
  font-size: 14px; border-radius: 8px; letter-spacing: 0;
}
.card-sub { color: var(--ink-light); font-size: 13.5px; margin: -10px 0 16px; }

/* ---------- Input form ---------- */
.field-row { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.field-label { width: 76px; font-weight: 700; color: var(--ink); flex-shrink: 0; }
.selects { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
select {
  font-family: inherit; font-size: 15px; color: var(--ink);
  background: #fff; border: 1px solid var(--border); border-radius: 8px;
  padding: 7px 10px; outline: none;
}
select:focus { border-color: var(--accent); }
.unit { color: var(--ink-light); font-size: 14px; }
.checkbox-label { margin-left: 14px; font-size: 14px; color: var(--ink-light); cursor: pointer; user-select: none; }
.checkbox-label input { margin-right: 4px; accent-color: var(--accent); }

.pill-group { display: inline-flex; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: #fff; }
.pill {
  font-family: inherit; font-size: 14.5px; padding: 8px 20px;
  background: transparent; color: var(--ink-light);
  border: none; cursor: pointer; transition: all .15s;
}
.pill + .pill { border-left: 1px solid var(--border); }
.pill.active { background: var(--accent); color: #fdf6ec; }
.hint { font-size: 12.5px; color: var(--ink-light); }

.error-msg { color: var(--accent); font-size: 14px; min-height: 20px; margin: 2px 0 6px 86px; }
.submit-row { margin: 6px 0 12px; text-align: center; }
.btn-primary {
  font-family: inherit; font-size: 17px; letter-spacing: 8px; text-indent: 8px;
  padding: 12px 54px; cursor: pointer;
  background: var(--accent); color: #fdf6ec;
  border: none; border-radius: 10px;
  box-shadow: 0 4px 12px rgba(158, 43, 37, 0.3);
  transition: transform .12s, box-shadow .12s;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(158, 43, 37, 0.38); }
.note { font-size: 12.5px; color: var(--ink-light); border-top: 1px dashed var(--border); padding-top: 12px; }

/* ---------- Result steps ---------- */
.step-card { animation: fadeUp .5s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

.next-row { text-align: center; margin-top: 20px; }
.btn-next {
  font-family: inherit; font-size: 15px; padding: 10px 30px; cursor: pointer;
  background: #fff; color: var(--accent);
  border: 1.5px solid var(--accent); border-radius: 10px;
  transition: all .15s;
}
.btn-next:hover { background: var(--accent); color: #fdf6ec; }

.basic-info { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: 14.5px; color: var(--ink-light); margin-bottom: 18px; }
.basic-info b { color: var(--ink); font-weight: 700; }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 6px 0 16px; }
.pillar {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 8px; text-align: center;
}
.pillar .p-label { font-size: 13px; color: var(--ink-light); letter-spacing: 2px; }
.pillar .p-palace { font-size: 11px; color: var(--ink-light); opacity: .8; margin-bottom: 8px; }
.pillar .p-gan, .pillar .p-zhi { font-size: 38px; font-weight: 700; line-height: 1.25; }
.pillar .p-ss { font-size: 12px; color: var(--ink-light); margin: 2px 0 6px; }
.pillar .p-cang { font-size: 12px; color: var(--ink-light); margin-top: 4px; line-height: 1.5; }
.pillar .p-nayin { font-size: 12px; color: var(--gold); margin-top: 8px; border-top: 1px dashed var(--border); padding-top: 6px; }
.pillar.day-pillar { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }

.wx-木 { color: var(--wx-mu); }
.wx-火 { color: var(--wx-huo); }
.wx-土 { color: var(--wx-tu); }
.wx-金 { color: var(--wx-jin); }
.wx-水 { color: var(--wx-shui); }

/* Tags */
.tag {
  display: inline-block; font-size: 12.5px; padding: 2px 10px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent); margin: 2px 4px 2px 0;
}
.tag.gold { background: #f1e8d2; color: var(--gold); }
.tag.green { background: #e2efe6; color: var(--wx-mu); }
.tag.blue { background: #e2ecf3; color: var(--wx-shui); }

/* Element bars */
.wx-bars { margin: 12px 0; }
.wx-bar-row { display: flex; align-items: center; gap: 10px; margin: 7px 0; }
.wx-bar-row .wx-name { width: 56px; font-weight: 700; flex-shrink: 0; }
.wx-bar-track { flex: 1; height: 16px; background: #efe7d4; border-radius: 999px; overflow: hidden; }
.wx-bar-fill { height: 100%; border-radius: 999px; transition: width .8s ease; }
.wx-bar-row .wx-val { width: 110px; font-size: 12.5px; color: var(--ink-light); text-align: right; flex-shrink: 0; }

.strength-meter { margin: 16px 0 6px; }
.strength-track { height: 22px; border-radius: 999px; background: linear-gradient(90deg, #2b6f9e, #e8dfc8 50%, #c0392b); position: relative; }
.strength-pointer {
  position: absolute; top: -7px; width: 4px; height: 36px;
  background: var(--ink); border-radius: 2px; transform: translateX(-50%);
}
.strength-labels { display: flex; justify-content: space-between; font-size: 12px; color: var(--ink-light); margin-top: 6px; }

/* Tables */
table.plain { width: 100%; border-collapse: collapse; font-size: 14px; margin: 10px 0; }
table.plain th, table.plain td { border: 1px solid var(--border); padding: 8px 10px; text-align: center; }
table.plain th { background: #f3ecdb; font-weight: 700; }
table.plain tr.current { background: var(--accent-soft); font-weight: 700; }
table.plain tr.current td:first-child::before { content: "▶ "; color: var(--accent); font-size: 11px; }

/* Content blocks */
.block { margin: 14px 0; }
.block h3 { font-size: 15.5px; margin-bottom: 6px; color: var(--ink); }
.block h3::before { content: "◆ "; color: var(--accent); font-size: 12px; }
.block p, .block li { font-size: 14.5px; color: #443f37; }
.block ul { padding-left: 22px; }
.quote {
  background: #f5efdf; border-left: 3px solid var(--gold);
  padding: 10px 16px; border-radius: 0 8px 8px 0;
  font-size: 13.5px; color: #6e6046; margin: 10px 0;
}
.quote b { color: var(--gold); }
.warn {
  background: #fdf3e3; border: 1px solid #e8cfa0; border-radius: 8px;
  padding: 10px 14px; font-size: 13.5px; color: #8a6520; margin: 10px 0;
}

.disclaimer {
  text-align: center; font-size: 13px; color: var(--ink-light);
  border: 1px dashed var(--border); border-radius: 10px; padding: 14px; margin-top: 4px;
}

.toolbar { text-align: center; margin-bottom: 22px; }
.btn-ghost {
  font-family: inherit; font-size: 13.5px; padding: 7px 18px; margin: 0 6px; cursor: pointer;
  background: transparent; color: var(--ink-light);
  border: 1px solid var(--border); border-radius: 8px;
}
.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }

.site-footer { text-align: center; padding: 26px 16px 40px; color: var(--ink-light); font-size: 12.5px; }

@media (max-width: 640px) {
  .pillars { grid-template-columns: repeat(4, 1fr); gap: 6px; }
  .pillar .p-gan, .pillar .p-zhi { font-size: 26px; }
  .card { padding: 18px 14px; }
  .field-label { width: 100%; }
  .error-msg { margin-left: 0; }
}