:root {
  --bg: #f0f2f5;
  --bg2: #ffffff;
  --bg3: #f7f8fa;
  --bg4: #eef0f3;
  --border: #dde1e6;
  --gold: #8B6914;
  --gold2: #7a5a10;
  --text: #333333;
  --text2: #666666;
  --text3: #999999;
  --yang: #c0392b;
  --yang-dong: #d35400;
  --yin: #2980b9;
  --green: #27ae60;
  --red: #c0392b;
  --orange: #d35400;
  --purple: #8e44ad;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', 'STSong', serif;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(180,170,140,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(150,155,165,0.08) 0%, transparent 50%),
    linear-gradient(180deg, #f5f6f8 0%, #f0f2f5 100%);
}

/* ===== 顶部导航栏 ===== */
.topbar {
  background: linear-gradient(135deg, #ffffff 0%, #f7f8fa 50%, #ffffff 100%);
  border-bottom: 1px solid var(--border);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  gap: 16px;
  flex-wrap: wrap;
}
.topbar-title { font-size: 20px; color: var(--gold); letter-spacing: 6px; font-weight: normal; white-space: nowrap; }
.topbar-dates { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.topbar-date-item { font-size: 12px; color: var(--text2); white-space: nowrap; }
.topbar-date-item em { color: var(--gold); font-style: normal; margin-left: 4px; }
.topbar-divider { width: 1px; height: 14px; background: var(--border); }

/* ===== 主内容区 ===== */
.main-wrap { max-width: 1200px; margin: 0 auto; padding: 20px 16px 60px; }

/* ===== 输入面板 ===== */
.input-section {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

/* ===== 模式标签 ===== */
.mode-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; border-bottom: 1px solid var(--border); padding-bottom: 12px; }
.mode-tab { padding: 6px 14px; border-radius: 6px; cursor: pointer; color: var(--text2); font-size: 13px; transition: all 0.2s; user-select: none; border: 1px solid transparent; }
.mode-tab:hover { color: var(--text); border-color: var(--border); }
.mode-tab.active { background: linear-gradient(135deg, #faf6eb, #f5edd6); border-color: var(--gold); color: var(--gold); }

/* ===== 输入组 ===== */
.input-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 12px; }
.input-group { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 100px; }
.input-group label { font-size: 11px; color: var(--text3); letter-spacing: 1px; }
.input-group input, .input-group select {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
  font-family: inherit;
}
.input-group input:focus { border-color: var(--gold); }

/* ===== 按钮 ===== */
.btn-row { display: flex; gap: 10px; margin-top: 14px; }
.btn { flex: 1; padding: 10px; border-radius: 6px; border: none; cursor: pointer; font-size: 14px; letter-spacing: 2px; transition: all 0.2s; font-family: inherit; }
.btn-primary { background: linear-gradient(135deg, var(--gold), var(--gold2)); color: #fff !important; font-weight: bold; }
.btn-primary:hover { box-shadow: 0 2px 12px rgba(139,105,20,0.25); }
.btn-secondary { background: var(--bg3); border: 1px solid var(--border); color: var(--text2); }
.btn-secondary:hover { border-color: var(--gold); color: var(--gold); }

/* ===== 信息栏 ===== */
.info-bar {
  background: linear-gradient(135deg, #ffffff, #f7f8fa);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 20px;
  margin-bottom: 20px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.info-item { font-size: 12px; color: var(--text2); }
.info-item em { color: var(--text); font-style: normal; }
.info-item.gold { color: var(--gold); }
.info-bar-divider { width: 1px; height: 16px; background: var(--border); }

/* ===== 卦卡 ===== */
.gua-cards { display: flex; flex-direction: column; gap: 20px; margin-bottom: 24px; }
.gua-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; box-shadow: 0 1px 6px rgba(0,0,0,0.05); }
.gua-card-ben { border-color: rgba(139,105,20,0.35); box-shadow: 0 1px 8px rgba(139,105,20,0.1); }
.gua-card-hu { border-color: rgba(211,84,0,0.3); }
.gua-card-bian { border-color: rgba(192,57,43,0.3); }
.gua-card-zong { border-color: rgba(142,68,173,0.3); }
.gua-card-cuo { border-color: rgba(41,128,185,0.3); }

.card-header { display: flex; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--border); gap: 12px; }
.card-tag { padding: 4px 12px; border-radius: 4px; font-size: 13px; font-weight: bold; }
.gua-card-ben .card-tag { background: rgba(139,105,20,0.1); color: var(--gold); }
.gua-card-hu .card-tag { background: rgba(211,84,0,0.08); color: var(--orange); }
.gua-card-bian .card-tag { background: rgba(192,57,43,0.08); color: var(--red); }
.gua-card-zong .card-tag { background: rgba(142,68,173,0.08); color: var(--purple); }
.gua-card-cuo .card-tag { background: rgba(41,128,185,0.08); color: var(--yin); }

/* ===== 表格 ===== */
.card-table { width: 100%; border-collapse: collapse; }
.card-table .tip-row { background: var(--bg3); font-size: 11px; color: var(--text3); letter-spacing: 2px; }
.card-table .tip-row td { padding: 8px 12px; text-align: center; border-bottom: 1px solid var(--border); }
.card-table td { padding: 8px 12px; text-align: center; border-bottom: 1px solid var(--border); font-size: 13px; }
.card-table .gua-col { width: 10%; }
.card-table .yao-name-col { width: 12%; }
.card-table .symbol-col { width: 30%; font-size: 13px; }
.card-table .yao-ci-col { width: 48%; text-align: left !important; color: var(--text2); font-size: 12px; line-height: 1.5; }
.card-table td.yao-ci { text-align: left !important; }
.card-table tr:last-child td { border-bottom: none; }

/* ===== 爻线 ===== */
.yl-yang { display:inline-block; width:120px; height:6px; background:var(--yang); border-radius:3px; margin:10px 0; vertical-align:middle; }
.yl-yin-a, .yl-yin-b { display:inline-block; width:56px; height:6px; background:var(--yin); border-radius:3px; margin:10px 0; vertical-align:middle; }
.yl-yin-a { margin-right:4px; }

/* ===== 卦名单元格 ===== */
.gua-cell { text-align:center; vertical-align:middle !important; width:12%; font-size:20px; color:var(--gold); background:rgba(139,105,20,0.04); border-right:1px solid var(--border); }
.shang-gua-label, .xia-gua-label { display:block; font-weight:bold; padding:20px 0; }

/* ===== 动爻高亮 ===== */
.dong-row { background:rgba(139,105,20,0.06) !important; }

/* ===== 卦辞区 ===== */
.gua-ci-box { padding: 12px 16px; background: var(--bg3); border-top: 1px solid var(--border); font-size: 12px; color: var(--text2); line-height: 1.6; }
.gua-ci-box strong { color: var(--gold); font-weight: normal; }

/* ===== 体用分析区 ===== */
.tiyong-box { padding: 14px 16px; background: linear-gradient(135deg, #f7f8fa, #f0f2f5); border-top: 1px solid var(--border); font-size: 12px; color: var(--text2); line-height: 1.7; }
.tiyong-box .tiyong-label { color: var(--text); font-weight: bold; margin-right: 8px; }
.tiyong-box .ti-gua, .tiyong-box .yong-gua { color: var(--gold); font-weight: bold; }

/* ===== 体用关系标签 ===== */
.cheng { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 11px; font-weight: bold; margin-left: 8px; }
.cheng-daji { background: rgba(74,222,128,0.15); color: var(--green); }
.cheng-ciji { background: rgba(74,158,255,0.15); color: var(--yin); }
.cheng-bihe { background: rgba(230,195,92,0.15); color: var(--gold); }
.cheng-xiao { background: rgba(248,113,113,0.15); color: var(--red); }
.cheng-dai { background: rgba(248,113,113,0.2); color: var(--red); border: 1px solid rgba(248,113,113,0.3); }

/* ===== 说明框 ===== */
.desc-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; padding: 18px 22px; margin-top: 20px; font-size: 12px; color: var(--text2); line-height: 1.8; box-shadow: 0 1px 6px rgba(0,0,0,0.04); }
.desc-box h3 { color: var(--text); font-size: 12px; letter-spacing: 3px; margin-bottom: 12px; font-weight: normal; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.desc-rule { color: var(--gold); font-weight: bold; }

/* ===== 页脚 ===== */
.footer { text-align: center; padding: 20px 0; color: var(--text3); font-size: 11px; border-top: 1px solid var(--border); margin-top: 30px; letter-spacing: 2px; }

/* ===== 提示条 ===== */
.time-note { font-size: 11px; color: var(--text3); margin-bottom: 12px; padding: 6px 10px; background: var(--bg3); border-radius: 6px; border-left: 2px solid var(--gold); }
.time-note em { color: var(--text2); font-style: normal; }

/* ===== 数字标签 ===== */
.num-info-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; display: none; }
.num-badge { background: var(--bg3); border: 1px solid var(--border); border-radius: 20px; padding: 3px 12px; font-size: 11px; color: var(--text2); }
.num-badge em { color: var(--gold); font-style: normal; margin-left: 3px; }

/* ===== 移动端适配 ===== */
@media (max-width: 768px) {
  .main-wrap { padding: 12px; }
  .input-section { padding: 16px; }
  .mode-tabs { flex-wrap: wrap; gap: 8px; }
  .mode-tab { flex: 1 1 calc(50% - 8px); padding: 10px 8px; font-size: 13px; text-align: center; }
  .input-row { flex-direction: column; gap: 12px; }
  .input-group { min-width: 100%; }
  .topbar-inner { padding: 0 12px; }
  .topbar-title { font-size: 14px; }
  .topbar-dates { gap: 8px; font-size: 11px; }
  .card-table { font-size: 12px; }
  .card-table td { padding: 6px 8px; }
  .yl-yang { width: 96px; height: 5px; }
  .yl-yin-a, .yl-yin-b { width: 44px; height: 5px; }
  .gua-cell { font-size: 16px; }
  .card-table .symbol-col { font-size: 12px; }
  .card-table .yao-ci-col,
  .card-table td.yao-ci { display: none; }
  .shang-gua-label, .xia-gua-label { padding: 12px 0; }
}