:root {
  --bg: #1a1714;
  --bg-soft: #241f1a;
  --card: #2b2520;
  --ink: #ece3d4;
  --ink-soft: #b6a892;
  --gold: #c9a227;
  --gold-soft: #e3c567;
  --red: #b5453a;
  --border: #3c342c;
  --shadow: rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  background:
    radial-gradient(circle at 50% 0%, #2a241e 0%, var(--bg) 60%);
  color: var(--ink);
  min-height: 100vh;
  line-height: 1.7;
}

/* ===== 头部 ===== */
.site-header {
  text-align: center;
  padding: 36px 16px 16px;
}
.site-title {
  margin: 0;
  font-size: 40px;
  letter-spacing: 12px;
  color: var(--gold-soft);
  text-shadow: 0 2px 10px rgba(201, 162, 39, 0.25);
}
.site-sub {
  margin: 8px 0 0;
  color: var(--ink-soft);
  font-size: 15px;
  letter-spacing: 2px;
}

/* ===== 布局 ===== */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 16px 16px 60px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px;
  box-shadow: 0 8px 30px var(--shadow);
}
.card-title {
  margin: 0 0 18px;
  font-size: 20px;
  color: var(--gold-soft);
  border-left: 4px solid var(--gold);
  padding-left: 12px;
  letter-spacing: 2px;
}

/* ===== 起卦方式切换 ===== */
.mode-switch {
  display: flex;
  gap: 12px;
  margin-bottom: 18px;
}
.mode-btn {
  flex: 1;
  padding: 12px 0;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--ink-soft);
  font-size: 16px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.mode-btn:hover { border-color: var(--gold); color: var(--ink); }
.mode-btn.active {
  background: linear-gradient(180deg, #3a3128, #2c251e);
  border-color: var(--gold);
  color: var(--gold-soft);
  box-shadow: inset 0 0 0 1px rgba(201, 162, 39, 0.4);
}

/* ===== 表单 ===== */
.field-row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.field-label {
  min-width: 92px;
  color: var(--ink-soft);
  font-size: 15px;
  padding-top: 6px;
}
.time-selects, .yao-selects {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}
.unit { color: var(--ink-soft); margin: 0 8px 0 2px; font-size: 14px; }
.yao-selects {
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 220px;
}
.yao-item { display: flex; align-items: center; gap: 10px; }
.yao-item .yao-pos {
  min-width: 44px;
  color: var(--gold-soft);
  font-size: 14px;
}
.yao-item .yao-shape {
  display: inline-block;
  min-width: 90px;
  font-family: "Courier New", Consolas, monospace;
  font-size: 18px;
  letter-spacing: 2px;
  color: var(--gold);
  font-weight: bold;
  user-select: none;
  white-space: nowrap;
}

select, textarea {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--ink);
  border-radius: 8px;
  padding: 8px 10px;
  font-family: inherit;
  font-size: 15px;
  outline: none;
}
select:focus, textarea:focus { border-color: var(--gold); }

.question-input {
  width: 100%;
  min-height: 110px;
  resize: vertical;
  line-height: 1.7;
}
.gender-selects {
  display: flex;
  gap: 18px;
  align-items: center;
}
.radio-inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  font-size: 15px;
  cursor: pointer;
  padding: 4px 0;
}
.radio-inline input { accent-color: var(--gold); width: 16px; height: 16px; }
.hint {
  color: var(--ink-soft);
  font-size: 13px;
  margin: 4px 0 0;
}

.mode-hint {
  color: var(--ink-soft);
  font-size: 13px;
  margin: 10px 0 0;
  padding: 8px 12px;
  border-left: 3px solid var(--gold-soft);
  background: rgba(201, 162, 39, 0.06);
  border-radius: 0 6px 6px 0;
}

/* ===== 按钮 ===== */
.action-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 8px;
}
.primary-btn {
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  border: none;
  color: #2a2118;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 2px;
  padding: 11px 30px;
  border-radius: 10px;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.1s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(201, 162, 39, 0.3);
}
.primary-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(201, 162, 39, 0.45); }
.primary-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.ghost-btn {
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold-soft);
  font-size: 15px;
  padding: 9px 22px;
  border-radius: 10px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}
.ghost-btn:hover { background: rgba(201, 162, 39, 0.12); }

.char-count { color: var(--ink-soft); font-size: 13px; }

/* ===== 卦象区 ===== */
.gua-name {
  text-align: center;
  color: var(--gold-soft);
  font-size: 20px;
  letter-spacing: 3px;
  margin-bottom: 14px;
}

/* ===== 锁定提示 ===== */
.locked-box {
  text-align: center;
  padding: 18px;
  background: rgba(181, 69, 58, 0.08);
  border: 1px dashed var(--red);
  border-radius: 10px;
  color: var(--ink-soft);
}
.locked-box p { margin: 4px 0; }
.unlock-time { color: var(--gold-soft); font-size: 14px; }

/* ===== Markdown 渲染 ===== */
.markdown { font-size: 15px; }
.markdown h1, .markdown h2, .markdown h3 {
  color: var(--gold-soft);
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
  margin: 22px 0 12px;
}
.markdown h1 { font-size: 21px; }
.markdown h2 { font-size: 18px; }
.markdown h3 { font-size: 16px; }
.markdown p { margin: 10px 0; }
.markdown ul, .markdown ol { margin: 10px 0; padding-left: 24px; }
.markdown li { margin: 5px 0; }
.markdown blockquote {
  margin: 12px 0;
  padding: 8px 14px;
  border-left: 3px solid var(--gold);
  background: rgba(201, 162, 39, 0.07);
  color: var(--ink-soft);
}
.markdown code {
  background: var(--bg-soft);
  padding: 1px 6px;
  border-radius: 5px;
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 13px;
  color: var(--gold-soft);
}
.markdown pre {
  background: #14110e;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  overflow-x: auto;
  line-height: 1.55;
}
.markdown pre code {
  background: none;
  padding: 0;
  color: var(--ink);
  font-size: 14px;
  white-space: pre;
}
.ai-result { margin-top: 8px; }

/* ===== 随缘赞赏 ===== */
.reward {
  margin-top: 24px;
  padding: 24px 22px;
  text-align: center;
  background: linear-gradient(180deg, rgba(201, 162, 39, 0.08), rgba(201, 162, 39, 0.02));
  border: 1px solid var(--gold);
  border-radius: 14px;
}
.reward-title {
  margin: 0 0 14px;
  font-size: 18px;
  letter-spacing: 3px;
  color: var(--gold-soft);
}
.reward-text {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.9;
  max-width: 560px;
  margin: 0 auto 18px;
  text-align: left;
}
.reward-text p { margin: 6px 0; }
.reward-qr {
  width: 200px;
  height: 200px;
  object-fit: contain;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  padding: 8px;
  box-shadow: 0 6px 20px var(--shadow);
}
.reward-tip {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  letter-spacing: 1px;
}
@media (max-width: 560px) {
  .reward-qr { width: 168px; height: 168px; }
}

/* ===== GFM 表格 ===== */
.markdown table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 14px;
  line-height: 1.7;
}
.markdown th {
  background: rgba(201, 162, 39, 0.12);
  color: var(--gold-soft);
  font-weight: 600;
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--border);
}
.markdown td {
  padding: 9px 12px;
  border: 1px solid var(--border);
  color: var(--ink);
}
.markdown tbody tr:nth-child(even) { background: rgba(255, 255, 255, 0.02); }
.markdown tbody tr:hover { background: rgba(201, 162, 39, 0.06); }
@media (max-width: 560px) {
  .markdown table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

/* ===== 加载动画 ===== */
.spinner {
  width: 18px;
  height: 18px;
  border: 3px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  display: inline-block;
  animation: spin 0.8s linear infinite;
}
.big-spinner {
  width: 52px;
  height: 52px;
  border: 5px solid rgba(201, 162, 39, 0.25);
  border-top-color: var(--gold);
  border-radius: 50%;
  margin: 0 auto 18px;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== 遮罩 ===== */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 8, 6, 0.72);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}
.overlay-box {
  background: var(--card);
  border: 1px solid var(--gold);
  border-radius: 16px;
  padding: 34px 40px;
  max-width: 420px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}
.overlay-title { font-size: 19px; color: var(--gold-soft); margin: 0 0 8px; letter-spacing: 2px; }
.overlay-sub { color: var(--ink-soft); font-size: 14px; margin: 0 0 20px; }

/* ===== Toast ===== */
.toast {
  position: fixed;
  left: 50%;
  bottom: 40px;
  transform: translateX(-50%);
  background: #14110e;
  border: 1px solid var(--gold);
  color: var(--ink);
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 15px;
  z-index: 80;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  max-width: 90vw;
  animation: toastIn 0.25s ease;
}
.toast.error { border-color: var(--red); color: #f0c4be; }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 12px); } to { opacity: 1; } }

/* ===== 页脚 ===== */
.site-footer {
  text-align: center;
  color: var(--ink-soft);
  font-size: 13px;
  padding: 24px 0 36px;
  letter-spacing: 1px;
}

@media (max-width: 560px) {
  .site-title { font-size: 30px; letter-spacing: 8px; }
  .field-row { flex-direction: column; }
  .field-label { padding-top: 0; }
}