:root {
    --bg: #fff;
    --ink: #333;
    --muted: #888;
    --green: #2e7d32;
    --red: #c62828;
    --blue: #1565c0;
    --orange: #ef6c00;
    --border: #e0e0e0;
    --card-bg: rgba(255,255,255,0.96);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  }
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { font-size: 16px; height: 100%; }
  body {
    font-family: var(--font);
    color: var(--ink);
    background: var(--bg);
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    min-height: 100%;
    overflow-x: hidden;
    padding-bottom: max(74px, calc(54px + env(safe-area-inset-bottom, 0px)));
  }

  .bagua-classics-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    background: #f7f8f7;
  }
  .bagua-classics-placeholder {
    color: #999;
    font-size: 14px;
    text-align: center;
    padding: 24px;
  }

  /* ========== 顶部导航 ========== */
  .app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
  }
  html.mp-webview .app-header,
  body.mp-webview .app-header {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    min-height: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    border: none !important;
    overflow: hidden !important;
  }
  .app-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1rem;
    font-weight: 600;
    color: #111;
    letter-spacing: 1px;
    pointer-events: none;
  }
  .header-left, .header-right { display: flex; align-items: center; gap: 8px; position: relative; z-index: 1; }
  .header-right .panel-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
  }
  .header-right .panel-switch-label {
    font-size: 0.82rem;
    font-weight: 500;
    color: #111;
  }
  .header-right .switch-track {
    position: relative;
    width: 42px;
    height: 24px;
    border-radius: 999px;
    background: #ccc;
    border: 1px solid #bbb;
    transition: background .2s, border-color .2s;
    flex-shrink: 0;
  }
  .header-right .switch-track::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,.2);
    transition: transform .2s;
  }
  .header-right .panel-switch input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
  }
  .header-right .panel-switch input:checked + .switch-track {
    background: #111;
    border-color: #111;
  }
  .header-right .panel-switch input:checked + .switch-track::after {
    transform: translateX(18px);
  }
  .icon-btn {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    background: #fff; border: 1px solid #ccc; border-radius: 50%; cursor: pointer;
    color: #111;
  }
  .icon-btn svg { width: 18px; height: 18px; fill: #111; }

  /* 全局按钮：白底黑字 */
  button {
    background: #fff;
    color: #111;
    border: 1px solid #ccc;
    cursor: pointer;
    font-family: inherit;
  }
  button:hover { background: #f7f7f7; }
  button.active {
    background: #111;
    color: #fff;
    border-color: #111;
  }

  /* ========== 日期时间：公历 / 农历 / 四柱（对齐 default） ========== */
  .time-block {
    display: none;
    padding: 8px 12px 6px;
    background: #fafafa;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
  .time-block.is-open {
    display: flex;
  }
  .qimen-time-tabs {
    display: inline-flex;
    align-items: center;
    gap: 0;
    padding: 3px;
    border-radius: 999px;
    background: #f1f1f1;
  }
  .qimen-time-tab {
    border: none;
    background: transparent;
    color: #888;
    border-radius: 999px;
    padding: 5px 16px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
  }
  .qimen-time-tab.active {
    background: #111;
    color: #fff;
    font-weight: 700;
    border: 1px solid #111;
    box-shadow: none;
  }
  .qimen-time-panel { display: none; }
  .qimen-time-panel.active { display: block; }
  .time-select-row {
    display: grid;
    grid-template-columns: repeat(5, minmax(56px, 72px));
    gap: 6px;
    width: fit-content;
    margin: 0 auto;
  }
  .time-select-row select {
    width: 100%;
    border: 1px solid #ccc;
    border-radius: 3px;
    padding: 6px 2px;
    background: #fff;
    color: #111;
    outline: none;
    font-size: 13px;
    text-align: center;
    cursor: pointer;
  }
  .pillar-select-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(64px, 88px));
    gap: 8px;
    width: fit-content;
    margin: 0 auto;
  }
  .pillar-select-row select {
    width: 100%;
    border: 1px solid #ccc;
    border-radius: 3px;
    padding: 6px 4px;
    background: #fff;
    color: #111;
    font-size: 13px;
    text-align: center;
    cursor: pointer;
  }
  .time-actions {
    display: flex;
    gap: 8px;
    align-items: center;
  }
  .time-actions button {
    padding: 5px 12px;
    font-size: 0.78rem;
    border-radius: 4px;
  }

  /* ========== 排盘选项（放在 time-block 内） ========== */
  .time-block .opts-row {
    display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
    gap: 6px 10px; padding: 4px 0 0;
    background: transparent; border-bottom: none;
    font-size: 0.78rem;
    width: 100%;
  }
  .time-block .opts-row label { color: #888; display: flex; align-items: center; gap: 4px; }
  .time-block .opts-row select {
    padding: 3px 6px; border: 1px solid var(--border); border-radius: 4px;
    background: #fff; font-size: 0.78rem; color: var(--ink);
  }
  .time-block .opts-row .ju-wrap { display: none; align-items: center; gap: 4px; }
  .time-block .opts-row.show-ju .ju-wrap { display: flex; }

  /* ========== 元信息栏（上：干支空亡，下：节气等） ========== */
  .meta-bar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 5px 8px;
    font-size: 0.75rem;
    color: var(--muted);
    background: #fafafa;
    border-bottom: 1px solid var(--border);
  }
  .meta-bar .pillars-row {
    display: flex;
    justify-content: center;
    gap: 14px;
    width: 100%;
  }
  .meta-bar .pillar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  .meta-bar .pillar .gz { font-size: 1.05rem; font-weight: 700; line-height: 1.2; }
  .meta-bar .pillar .gz .gan.jia, .meta-bar .pillar .gz .gan.yi { color: var(--green); }
  .meta-bar .pillar .gz .gan.bing, .meta-bar .pillar .gz .gan.ding { color: var(--red); }
  .meta-bar .pillar .gz .gan.wu, .meta-bar .pillar .gz .gan.ji { color: #5d4037; }
  .meta-bar .pillar .gz .gan.geng, .meta-bar .pillar .gz .gan.xin { color: #424242; }
  .meta-bar .pillar .gz .gan.ren, .meta-bar .pillar .gz .gan.gui { color: var(--blue); }
  .meta-bar .pillar .kong { font-size: 0.6rem; color: var(--muted); line-height: 1.2; }
  .meta-bar .meta-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 3px 6px;
    width: 100%;
  }
  .meta-bar .label { color: #aaa; }
  .meta-bar .value { color: var(--ink); font-weight: 500; }
  .meta-bar .value.green { color: var(--green); }
  .meta-bar .value.blue { color: var(--blue); }
  .meta-bar .color-key {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 4px 10px;
    width: 100%;
    padding-top: 2px;
    font-size: 0.7rem;
    color: #888;
  }
  .meta-bar .color-key b { font-weight: 700; }
  .meta-bar .color-key .ck-blue { color: #1565c0; }
  .meta-bar .color-key .ck-gold { color: #b68237; }
  .meta-bar .color-key .ck-red { color: #d73a31; }
  .meta-bar .color-key .ck-teal { color: #16b9ad; }

  /* ========== 八卦图：尽量占满视口，不受固定框约束 ========== */
  .bagua-wrapper {
    position: relative;
    width: min(89vw, calc(89dvh - 86px));
    max-width: none;
    height: min(89vw, calc(89dvh - 86px));
    aspect-ratio: 1;
    margin: 0 auto;
    overflow: visible;
    -webkit-tap-highlight-color: transparent;
  }
  .bagua-wrapper svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    -webkit-tap-highlight-color: transparent;
  }

  /* 紧凑顶栏，给盘体让高度 */
  .app-header { padding: 6px 10px; }

  /* ========== 盘上旋转按钮 ========== */
  .spin-row {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    padding: 4px 12px 2px;
  }
  .spin-row button {
    padding: 3px 9px;
    font-size: 0.68rem;
    font-weight: 500;
    border-radius: 4px;
    min-width: 60px;
  }
  .spin-row #btn-ju-prev,
  .spin-row #btn-ju-next {
    min-width: 52px;
    color: #333;
  }
  .spin-row button.active {
    background: #111;
    color: #fff;
    border-color: #111;
  }

  /* ========== 数据卡片 ========== */
  .data-card { display: none !important; }

  .dc-header {
    display: flex; align-items: baseline; gap: 3px;
    border-bottom: 1px solid #eee;
    padding-bottom: 2px; margin-bottom: 2px;
  }
  .dc-num { font-size: 0.62rem; color: #bbb; font-weight: 600; }
  .dc-name { font-size: 0.68rem; font-weight: 700; color: #555; }
  .dc-body {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0px 3px;
    align-items: baseline;
  }
  .dc-label { font-size: 0.56rem; color: #bbb; text-align: right; }
  .dc-val { font-size: 0.74rem; font-weight: 500; color: var(--ink); }
  .dc-val.zhifu { color: var(--blue); font-weight: 600; }
  .dc-val.zhishi { color: var(--blue); font-weight: 600; }
  .dc-footer {
    display: flex; justify-content: flex-end;
    gap: 4px; margin-top: 1px; min-height: 12px;
  }
  .dc-marker { font-size: 0.72rem; line-height: 1; }
  .dc-marker.empty { color: #ff3b30; }
  .dc-marker.horse { font-size: 0.55rem; }

  /* ========== 图例 ========== */
  .legend {
    display: none; justify-content: center;
    gap: 14px; padding: 6px 12px;
    font-size: 0.72rem; color: #8a8a8a;
    background: #fafafa; border-top: 1px solid var(--border);
  }
  .detailed-mode .legend { display: flex; }
  .legend .blue { color: var(--blue); }
  .legend .red { color: var(--red); }

  /* ========== 天干颜色（SVG用） ========== */
  .gan-jia, .gan-yi { fill: #2e7d32; }
  .gan-bing, .gan-ding { fill: #c62828; }
  .gan-wu, .gan-ji { fill: #5d4037; }
  .gan-geng, .gan-xin { fill: #424242; }
  .gan-ren, .gan-gui { fill: #1565c0; }

  /* ========== 时间导航 ========== */
  .time-nav {
    display: none;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 6px 12px 12px;
  }
  .detailed-mode .time-nav { display: flex; }
  .time-nav button {
    width: 34px; height: 34px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
  }
  .time-nav button svg { width: 16px; height: 16px; fill: #111; }
  .time-nav .nav-label {
    min-width: 60px; text-align: center;
    font-size: 0.78rem; font-weight: 600; color: #555;
  }