:root {
  --paper: #ECE2CC;
  --paper-2: #EFE8D8;
  --paper-3: #F4ECDA;
  --paper-4: #FAF6EE;
  --ink: #2C2620;
  --ink-soft: #49443A;
  --muted: #6B5E4C;
  --gold: #96713A;
  --gold-dark: #7B592B;
  --gold-light: #C2A36B;
  --gold-fill: #E9D5AC;
  --line: #CDBB93;
  --cinnabar: #A63A2E;
  --cinnabar-dark: #8E2F25;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", "Times New Roman", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button {
  font-family: inherit;
  touch-action: manipulation;
}

::selection {
  background: rgba(166, 58, 46, 0.18);
}

:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

/* 页面骨架：左侧选择面板 40%，右侧地图底纹 60% */
.menu-shell {
  height: 100vh;
  height: 100svh;
  height: 100dvh;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  background: var(--paper);
}

.menu-panel {
  position: relative;
  z-index: 2;
  flex: 0 0 40%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px 26px 20px;
  border-right: 1px solid var(--line);
  background: var(--paper-2);
}

/* 顶部标题区固定 */
.menu-head {
  flex: 0 0 auto;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  text-align: center;
}

/* 主菜单声音开关 */
.menu-audio-btn {
  position: absolute;
  top: 16px;
  right: 18px;
  z-index: 3;
  min-width: 66px;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid var(--line);
  background: var(--paper-4);
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.menu-audio-btn:hover {
  border-color: var(--gold);
  color: var(--ink);
}

.menu-audio-btn.is-off {
  color: var(--muted);
  background: var(--paper-3);
}

.menu-title {
  margin: 0;
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.18em;
  color: var(--ink);
}

.menu-subtitle {
  margin: 6px 0 0;
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.34em;
  color: var(--muted);
}

/* 中部可滚动主体 */
.menu-body {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow: hidden;
  padding-right: 2px;
}

.module {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.module-lord {
  flex: 1 1 auto;
  min-height: 0;
}

.module-title {
  margin: 0;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
  font-family: var(--serif);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--ink);
}

.module-title em {
  font-style: normal;
  font-family: var(--sans);
  font-size: 10.5px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
}

/* 剧本：四个按钮横向排列 */
.period-row {
  display: flex;
  align-items: stretch;
  gap: 8px;
}

.period-btn {
  flex: 1 1 0;
  min-width: 0;
  min-height: 40px;
  padding: 6px 4px;
  border: 1px solid var(--line);
  background: var(--paper-4);
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 13px;
  line-height: 1.25;
  letter-spacing: 0.02em;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.period-btn:hover {
  border-color: var(--gold);
  color: var(--ink);
}

.period-btn.is-active {
  border-color: var(--gold-dark);
  background: var(--gold-fill);
  color: var(--ink);
  font-weight: 600;
}

/* 君主势力列表 */
.lord-list {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 2px;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.lord-list::-webkit-scrollbar {
  width: 6px;
}

.lord-list::-webkit-scrollbar-track {
  background: rgba(205, 187, 147, 0.16);
}

.lord-list::-webkit-scrollbar-thumb {
  background: var(--gold-light);
}

.lord-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 54px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: var(--paper-4);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.lord-row:hover {
  border-color: var(--gold);
  background: var(--paper-3);
}

.lord-row.is-active {
  border-color: var(--gold-dark);
  background: var(--gold-fill);
}

.lord-avatar {
  width: 42px;
  height: 42px;
  display: block;
  border: 1px solid var(--line);
  background: var(--paper-3);
  object-fit: cover;
}

.lord-id {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.lord-name {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.06em;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lord-row.is-active .lord-name {
  color: var(--gold-dark);
}

.lord-note {
  font-size: 10.5px;
  line-height: 1.4;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lord-stats {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.lord-stats span {
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
}

.lord-empty {
  margin: 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--paper-4);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.lord-stats i {
  font-style: normal;
  font-size: 10px;
  color: var(--muted);
}

.lord-stats b {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--ink-soft);
}

.lord-row.is-active .lord-stats b {
  color: var(--gold-dark);
}

/* 底部按钮组固定 */
.menu-actions {
  flex: 0 0 auto;
  display: flex;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.menu-btn {
  flex: 1 1 0;
  min-width: 0;
  min-height: 46px;
  padding: 0 12px;
  border: 1px solid var(--gold-dark);
  background: var(--paper-4);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.menu-btn:hover:not(:disabled) {
  border-color: var(--gold-dark);
  background: var(--gold-fill);
  color: var(--gold-dark);
}

.menu-btn:active:not(:disabled) {
  background: var(--gold-light);
}

.menu-btn-primary {
  background: var(--paper-3);
  font-weight: 600;
}

.menu-btn:disabled {
  opacity: 0.45;
  cursor: default;
}

/* 右侧地图底纹 */
.menu-map {
  position: relative;
  flex: 1 1 60%;
  min-width: 0;
  overflow: hidden;
  background: var(--paper-3);
}

#menuMap {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.menu-map-note {
  position: absolute;
  right: 14px;
  bottom: 12px;
  z-index: 1;
  max-width: calc(100% - 28px);
  padding: 4px 9px;
  border: 1px solid rgba(205, 187, 147, 0.75);
  background: rgba(250, 246, 238, 0.8);
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.4;
  letter-spacing: 0.05em;
  text-align: right;
}

/* 提示条 */
.menu-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 90;
  transform: translateX(-50%);
  max-width: calc(100vw - 32px);
  padding: 8px 16px;
  border: 1px solid var(--line);
  background: var(--paper-4);
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  text-align: center;
}

.menu-toast[hidden] {
  display: none;
}

/* 矮屏：压缩标题区，把高度让给君主列表 */
@media (max-height: 700px) and (min-width: 901px) {
  .menu-panel {
    gap: 14px;
    padding: 18px 22px 14px;
  }

  .menu-head {
    padding-bottom: 10px;
  }

  .menu-title {
    font-size: 32px;
  }

  .lord-row {
    grid-template-columns: 38px minmax(0, 1fr) auto;
    min-height: 50px;
  }

  .lord-avatar {
    width: 38px;
    height: 38px;
  }
}

/* 窄屏：地图退为整页底纹，选择面板占满宽度 */
@media (max-width: 900px) {
  .menu-shell {
    position: relative;
  }

  .menu-map {
    position: fixed;
    inset: 0;
    z-index: 0;
    opacity: 0.55;
  }

  .menu-panel {
    flex: 1 1 auto;
    width: 100%;
    border-right: 0;
    background: rgba(239, 232, 216, 0.94);
    padding: 16px 16px 14px;
    gap: 14px;
  }

  .menu-title {
    font-size: 32px;
    letter-spacing: 0.14em;
  }

  .menu-subtitle {
    letter-spacing: 0.26em;
  }

  .period-btn {
    font-size: 12px;
    letter-spacing: 0;
    padding: 6px 2px;
    min-height: 38px;
  }

  .menu-btn {
    min-height: 44px;
    font-size: 14px;
    letter-spacing: 0.1em;
  }

  .menu-map-note {
    display: none;
  }
}

@media (max-width: 900px) and (max-height: 520px) {
  .menu-panel {
    gap: 10px;
    padding: 12px 14px 10px;
  }

  .menu-head {
    padding-bottom: 6px;
  }

  .menu-title {
    font-size: 22px;
  }

  .menu-subtitle {
    display: none;
  }

  .menu-body {
    gap: 12px;
  }

  .lord-row {
    min-height: 46px;
  }

  .lord-avatar {
    width: 34px;
    height: 34px;
  }

  .menu-btn {
    min-height: 40px;
  }
}