/* ================================================
   leaflet-vasslayers — 航海指挥中心深色主题
   ================================================ */

:root {
  --cyan:         #38c8e8;
  --cyan-light:   #6dd8ef;
  --cyan-dim:     rgba(56, 200, 232, 0.12);
  --cyan-border:  rgba(56, 200, 232, 0.25);
  --cyan-glow:    0 0 10px rgba(56, 200, 232, 0.2);
  --panel-bg:     rgba(8, 18, 30, 0.82);
  --panel-bg2:    rgba(12, 24, 38, 0.92);
  --text:         #b8d8e8;
  --text-dim:     rgba(184, 216, 232, 0.4);
  --text-bright:  #dff0f8;
  --active-bg:    rgba(56, 200, 232, 0.15);
  --hover-bg:     rgba(56, 200, 232, 0.07);
  --font-ui:      'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
  --font-mono:    'SF Mono', 'Consolas', 'Courier New', monospace;
  --radius:       4px;
  --radius-lg:    6px;
}

html, body, #map {
  height: 100%;
  height: 100dvh;
  width: 100%;
  padding: 0;
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
  font-family: var(--font-ui);
  -webkit-text-size-adjust: 100%;
}

/* VaSSLayers wordmark + icon (demo/assets/vasslayers-logo.svg), white on map */
.vass-brand {
  position: absolute;
  z-index: 1000;
  top: 38px;
  left: 50%;
  right: auto;
  transform: translateX(-50%);
  pointer-events: none;
}
.vass-brand img {
  display: block;
  height: 56px;
  width: auto;
  max-width: min(92vw, 320px);
  /* brightness(0) 把非透明像素压成黑色（alpha 不变），invert(1) 再翻成白色；
     drop-shadow 放最后，才是给白色图形加影而不是给原图加 */
  filter: brightness(0) invert(1) drop-shadow(0 2px 6px rgba(0, 0, 0, 0.55));
}

#map {
  background-color: rgba(130, 130, 130, 1);
}

/* ────────────────────────────────────────────────
   通用面板基础样式
   ──────────────────────────────────────────────── */
.my-leaflet-control,
.custom-control,
.layer-switch-control,
.year-control,
.layer-group-control,
.title,
.value-display,
.zoom-latlng-display {
  background: var(--panel-bg);
  border: 1px solid var(--cyan-border);
  color: var(--text);
  font-family: var(--font-ui);
  backdrop-filter: blur(16px) saturate(1.3);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 16px rgba(0,0,0,0.5), var(--cyan-glow);
  transition: border-color .2s, box-shadow .2s;
}

.my-leaflet-control:hover,
.custom-control:hover,
.layer-switch-control:hover,
.layer-group-control:hover {
  border-color: rgba(56, 200, 232, 0.45);
  box-shadow: 0 4px 20px rgba(0,0,0,0.55), 0 0 16px rgba(56,200,232,0.18);
}

/* ────────────────────────────────────────────────
   标题控件
   ──────────────────────────────────────────────── */
.title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--cyan);
  padding: 9px 14px;
  white-space: nowrap;
  border-left: 3px solid var(--cyan);
}

/* ────────────────────────────────────────────────
   定位控件
   ──────────────────────────────────────────────── */
.custom-control {
  padding: 10px 12px;
  min-width: 160px;
  max-width: 180px;
}

.custom-control input[type="text"] {
  width: 100%;
  padding: 6px 9px;
  margin: 3px 0;
  border: 1px solid rgba(56,200,232,0.18);
  border-radius: var(--radius);
  background: rgba(56,200,232,0.05);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-bright);
  outline: none;
  box-sizing: border-box;
  transition: border-color .2s, background .2s;
}

.custom-control input[type="text"]:focus {
  border-color: var(--cyan);
  background: var(--cyan-dim);
}

.custom-control input[type="text"]::placeholder {
  color: var(--text-dim);
  font-size: 11px;
}

.custom-control #go-to-btn {
  width: 100%;
  padding: 7px;
  margin-top: 6px;
  background: var(--cyan-dim);
  border: 1px solid var(--cyan-border);
  border-radius: var(--radius);
  color: var(--cyan-light);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all .2s;
}

.custom-control #go-to-btn:hover {
  background: rgba(56,200,232,0.22);
  border-color: var(--cyan);
  color: #fff;
  box-shadow: 0 0 8px rgba(56,200,232,0.3);
}

.custom-control #go-to-btn:active {
  transform: scale(.98);
}

/* ────────────────────────────────────────────────
   图层管理控件（LayerSwitchControl）
   ──────────────────────────────────────────────── */
.layer-switch-control {
  min-width: 190px;
  overflow: hidden;
  padding: 0;
}

.layer-switch-control.expanded {
  box-shadow: 0 4px 20px rgba(0,0,0,0.55), 0 0 16px rgba(56,200,232,0.18);
}

.layer-switch-content {
  border-top: 1px solid rgba(56,200,232,0.12);
  padding: 12px;
}

.base-map-section {
  margin-bottom: 10px;
}

.data-layer-section {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(56,200,232,0.1);
}

.section-label {
  color: var(--cyan);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 7px;
  opacity: .75;
}

.layer-switch-control .layer-select {
  width: 100%;
  padding: 7px 30px 7px 10px;
  border: 1px solid rgba(56,200,232,0.18);
  border-radius: var(--radius);
  background: rgba(56,200,232,0.05);
  font-family: var(--font-ui);
  font-size: 12px;
  color: var(--text-bright);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%2338c8e8' d='M5 7L1 3h8z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  box-sizing: border-box;
  outline: none;
  transition: border-color .2s;
}

.layer-switch-control .layer-select:focus {
  border-color: var(--cyan);
  background-color: var(--cyan-dim);
}

/* ────────────────────────────────────────────────
   聚合图层列表控件
   ──────────────────────────────────────────────── */
.layer-group-control {
  min-width: 190px;
  overflow: hidden;
  padding: 0;
}

.layer-group-control.expanded {
  box-shadow: 0 4px 20px rgba(0,0,0,0.55), 0 0 16px rgba(56,200,232,0.18);
}

.layer-group-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid transparent;
  transition: background .18s;
}

.layer-group-header:hover {
  background: var(--hover-bg);
}

.layer-group-control.expanded .layer-group-header {
  border-bottom-color: rgba(56,200,232,0.12);
}

.layer-group-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--cyan);
}

.layer-group-toggle {
  color: var(--cyan);
  font-size: 10px;
  opacity: .7;
  transition: transform .25s;
}

.layer-group-control.expanded .layer-group-toggle {
  transform: rotate(180deg);
}

.layer-group-list {
  max-height: 400px;
  overflow-y: auto;
  overflow-x: hidden;
}

.layer-group-list::-webkit-scrollbar {
  width: 3px;
}

.layer-group-list::-webkit-scrollbar-track {
  background: transparent;
}

.layer-group-list::-webkit-scrollbar-thumb {
  background: rgba(56,200,232,0.3);
  border-radius: 2px;
}

.layer-group-list::-webkit-scrollbar-thumb:hover {
  background: rgba(56,200,232,0.55);
}

.layer-group-item {
  padding: 9px 14px;
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background .15s, color .15s, padding-left .15s;
}

.layer-group-item:last-child {
  border-bottom: none;
}

.layer-group-item:hover {
  background: var(--hover-bg);
  color: var(--text-bright);
  padding-left: 18px;
}

.layer-group-item.active {
  background: var(--active-bg);
  color: var(--cyan-light);
  font-weight: 600;
  border-left: 2px solid var(--cyan);
  padding-left: 12px;
}

.layer-group-item > div {
  pointer-events: none;
}

/* ────────────────────────────────────────────────
   数值 / 坐标显示
   ──────────────────────────────────────────────── */
.value-display {
  font-size: 12px;
  line-height: 1.7;
  padding: 9px 12px;
  font-family: var(--font-mono);
  max-width: 260px;
  word-wrap: break-word;
}

.value-display strong {
  color: var(--cyan-light);
  font-weight: 600;
}

.zoom-latlng-display {
  font-size: 11px;
  padding: 8px 11px;
  line-height: 1.75;
  font-family: var(--font-mono);
  max-width: 240px;
  word-wrap: break-word;
}

.zoom-latlng-display .zoom-info {
  margin-bottom: 3px;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(56,200,232,0.1);
  color: var(--text-dim);
}

.zoom-latlng-display .latlng-info {
  margin-top: 3px;
}

.zoom-latlng-display span {
  color: var(--cyan-light);
  font-weight: 600;
}

/* ────────────────────────────────────────────────
   触发按钮控件
   ──────────────────────────────────────────────── */
.leaflet-bar.value-display {
  padding: 0;
  cursor: pointer;
  margin-bottom: 8px;
}

.leaflet-bar.value-display:hover {
  border-color: rgba(56,200,232,0.5);
  box-shadow: 0 4px 16px rgba(0,0,0,0.5), 0 0 12px rgba(56,200,232,0.2);
}

.leaflet-bar.value-display > div {
  padding: 8px 15px;
  color: var(--cyan);
  font-weight: 600;
  font-size: 12px;
  text-align: center;
  letter-spacing: .5px;
  transition: background .18s;
}

.leaflet-bar.value-display:hover > div {
  background: var(--hover-bg);
  color: var(--text-bright);
}

/* ────────────────────────────────────────────────
   年份滑块
   ──────────────────────────────────────────────── */
.year-control {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 14px;
  min-width: 200px;
}

.year-control label {
  color: var(--cyan);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.year-control input[type="range"] {
  width: 100%;
  height: 4px;
  background: rgba(56,200,232,0.15);
  border: none;
  border-radius: 2px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.year-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(56,200,232,0.6);
  transition: transform .18s, box-shadow .18s;
  border: 2px solid rgba(8,18,30,0.8);
}

.year-control input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.25);
  box-shadow: 0 0 10px rgba(56,200,232,0.8);
}

.year-control input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  border: 2px solid rgba(8,18,30,0.8);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(56,200,232,0.6);
}

/* ────────────────────────────────────────────────
   Leaflet 弹出窗口
   ──────────────────────────────────────────────── */
.leaflet-popup-content-wrapper {
  border-radius: var(--radius-lg);
  background: var(--panel-bg2);
  border: 1px solid var(--cyan-border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.6), var(--cyan-glow);
}

.leaflet-popup-content {
  margin: 12px 15px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
  font-family: var(--font-mono);
}

.leaflet-popup-content strong {
  color: var(--cyan-light);
  font-weight: 600;
}

.leaflet-popup-tip {
  background: var(--panel-bg2);
}

.leaflet-popup-bottom .leaflet-popup-tip-container { margin-top: -1px; }
.leaflet-popup-top .leaflet-popup-tip-container    { margin-bottom: -1px; }
.leaflet-popup-left .leaflet-popup-tip-container   { margin-right: -1px; }
.leaflet-popup-right .leaflet-popup-tip-container  { margin-left: -1px; }

.leaflet-popup-close-button {
  color: var(--text-dim) !important;
  font-size: 18px;
  padding: 7px;
  transition: color .18s;
}

.leaflet-popup-close-button:hover {
  color: var(--cyan) !important;
}

/* ────────────────────────────────────────────────
   标记点
   ──────────────────────────────────────────────── */
.leaflet-marker-icon {
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.4));
  transition: filter .2s;
}

.leaflet-marker-icon:hover {
  filter: drop-shadow(0 0 8px rgba(56,200,232,0.7));
}

/* ────────────────────────────────────────────────
   dat.GUI 样式覆盖
   ──────────────────────────────────────────────── */
.dg.ac {
  z-index: 1000 !important;
  pointer-events: none !important;
}

.dg.main {
  width: 340px !important;
  pointer-events: auto !important;
}

.dg .property-name {
  width: 42% !important;
}

.dg .cr.number input[type=text] {
  width: 22% !important;
}

.dg .cr select {
  width: 56% !important;
}

.dg ul {
  max-height: calc(100vh - 80px) !important;
  overflow-y: auto !important;
}

/* ────────────────────────────────────────────────
   Leaflet 控件间距
   ──────────────────────────────────────────────── */
.leaflet-control {
  margin: 8px !important;
}

.leaflet-top .leaflet-control    { margin-top: 8px !important; }
.leaflet-bottom .leaflet-control { margin-bottom: 8px !important; }
.leaflet-left .leaflet-control   { margin-left: 8px !important; }
.leaflet-right .leaflet-control  { margin-right: 8px !important; }

.leaflet-top .leaflet-control.leaflet-control-colorBar {
  margin-top: 0 !important;
}

.leaflet-top.leaflet-right .leaflet-control:not(.leaflet-control-colorBar) {
  margin-top: 8px;
}

.leaflet-top .geo-goto {
  margin-top: 28px !important;
}

.leaflet-top.leaflet-right .lvp-toolset {
  margin-top: 28px !important;
}

.city-label {
  background: none !important;
  border: none !important;
}
.city-label span {
  position: absolute;
  left: 0;
  top: 0;
  transform: translate(-50%, -50%);
  color: #f4f7fb;
  font-size: 11px;
  font-weight: 600;
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  letter-spacing: 0.3px;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  text-shadow:
    -1px -1px 0 rgba(0, 0, 0, 0.75),
     1px -1px 0 rgba(0, 0, 0, 0.75),
    -1px  1px 0 rgba(0, 0, 0, 0.75),
     1px  1px 0 rgba(0, 0, 0, 0.75);
}

.geo-goto {
  background: var(--vass-bg-panel, var(--panel-bg));
  backdrop-filter: blur(var(--vass-backdrop-blur, 12px));
  -webkit-backdrop-filter: blur(var(--vass-backdrop-blur, 12px));
  border: 1px solid var(--vass-border, var(--cyan-border));
  border-radius: 6px;
  box-shadow: var(--vass-shadow, 0 4px 16px rgba(0, 0, 0, 0.4));
  padding: 4px 8px;
  box-sizing: border-box;
}
.geo-goto-input {
  display: block;
  width: 220px;
  max-width: 42vw;
  border: none;
  background: transparent;
  color: var(--vass-text, var(--text-bright));
  font: 12px/1.4 var(--font-ui);
  outline: none;
  padding: 4px 2px;
}
.geo-goto-input::placeholder {
  color: var(--vass-text-muted, var(--text-dim));
}
.geo-goto--err .geo-goto-input {
  color: #e53935;
}
.geo-goto-hist {
  list-style: none;
  margin: 4px -8px -4px;
  padding: 0;
  border-top: 1px solid var(--vass-border, var(--cyan-border));
  max-height: 176px;
  overflow-y: auto;
}
.geo-goto-hist[hidden] {
  display: none;
}
.geo-goto-hist button {
  display: block;
  width: 100%;
  box-sizing: border-box;
  text-align: left;
  border: none;
  background: transparent;
  color: var(--vass-text, var(--text-bright));
  font: 12px/1.4 var(--font-mono, var(--font-ui));
  padding: 6px 10px;
  cursor: pointer;
}
.geo-goto-hist button:hover {
  background: var(--hover-bg, rgba(56, 200, 232, 0.07));
}

/* ────────────────────────────────────────────────
   移动端 chrome（桌面隐藏）
   ──────────────────────────────────────────────── */
.m-hud,
.m-chrome {
  display: none;
}

/* ────────────────────────────────────────────────
   授权验证覆盖层
   ──────────────────────────────────────────────── */
/* ────────────────────────────────────────────────
   响应式 — 参考全屏地图 + 底部时间轴 + 浮动菜单
   ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --m-colorbar-h: 15px;
    /* 跟随库内时间轴的实际高度（control-theme.css 的移动端标度） */
    --m-timeline-h: var(--vass-m-timeline-h, 48px);
    --m-safe-top: env(safe-area-inset-top, 0px);
    --m-safe-bottom: env(safe-area-inset-bottom, 0px);
    --m-safe-right: env(safe-area-inset-right, 0px);
    --m-bottom-stack: 0px;
  }

  html, body {
    height: 100dvh;
    width: 100%;
    overflow: hidden;
    position: fixed;
    inset: 0;
  }
  #map {
    height: 100%;
    width: 100%;
  }

  .custom-control,
  .layer-switch-control,
  .year-control         { min-width: 150px; }
  .title                { font-size: 12px; padding: 8px 11px; }
  .value-display,
  .zoom-latlng-display  { font-size: 10px; padding: 7px 9px; max-width: 200px; }
  .layer-group-control  { min-width: 155px; }
  .layer-group-header   { padding: 9px 12px; }
  .layer-group-item     { padding: 8px 12px; font-size: 11px; }
  .layer-group-list     { max-height: 280px; }

  /* ── 色标：顶部连续渐变条 ── */
  .leaflet-control-colorBar {
    top: var(--m-safe-top) !important;
    bottom: auto !important;
    left: 0 !important;
    right: 0 !important;
    height: var(--m-colorbar-h) !important;
    z-index: 1002 !important;
  }
  .leaflet-control-colorBar svg {
    width: 100% !important;
    height: 100% !important;
    display: block;
  }

  /* ── 时间轴：全宽贴底；scrub 交互由 .tl-mode-scrub 负责 ── */
  .leaflet-bottom {
    bottom: var(--m-bottom-stack);
    overflow: visible;
  }
  .leaflet-bottom.leaflet-left.tl-bottom-center-pane {
    padding: 0 !important;
    width: 100% !important;
    left: 0 !important;
    right: 0 !important;
  }
  .leaflet-bottom.leaflet-left .leaflet-control-timeline {
    min-width: 0 !important;
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    box-shadow: none;
    border-radius: 0;
  }

  /* ── 顶栏让出刘海；左侧面板由菜单接管 ── */
  .leaflet-top.leaflet-left {
    display: none;
  }
  .leaflet-right {
    right: var(--m-safe-right);
  }

  /* ── 深度/气压：收进底部菜单，等宽网格 ── */
  .leaflet-bottom.leaflet-right {
    display: none;
  }
  .dc-container {
    display: none;
  }
  .m-sheet .dc-container,
  .m-sheet .lsc-container,
  .m-sheet .let-wrap,
  .m-sheet .ctp-wrap,
  .m-sheet .dg.ac {
    background: var(--vass-surface-1);
    border: 1px solid var(--vass-border-soft);
    border-radius: 12px;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .m-sheet .dc-container:hover,
  .m-sheet .lsc-container:hover {
    border-color: var(--vass-border-soft);
    box-shadow: none;
  }
  .m-sheet .dc-container {
    display: block;
    position: relative !important;
    width: 100% !important;
    min-width: 0 !important;
    max-height: none;
    margin: 0 0 12px !important;
    padding: 12px 14px 14px;
    overflow: visible;
  }
  .m-sheet .dc-container:has(.dc-btn:only-child) {
    display: none;
  }
  .m-sheet .dc-title {
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: none;
    color: var(--vass-text-muted);
    margin-bottom: 8px;
    padding-bottom: 0;
    border-bottom: none;
  }
  .m-sheet .dc-list {
    display: none;
  }
  .m-sheet .dc-slider-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 8px 2px;
  }
  .m-sheet .dc-slider-value {
    flex: 0 0 auto;
    min-width: 3.6em;
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.2px;
    color: var(--vass-text-bright);
    font-family: 'SF Mono', 'Consolas', 'Courier New', monospace;
  }
  .m-sheet .dc-slider {
    flex: 1;
    min-width: 0;
    height: 28px;
    margin: 0;
    padding: 0;
    background: transparent;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
    touch-action: none;
  }
  .m-sheet .dc-slider:focus {
    outline: none;
  }
  .m-sheet .dc-slider::-webkit-slider-runnable-track {
    height: 3px;
    border-radius: 2px;
    background: var(--vass-surface-4);
  }
  .m-sheet .dc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px;
    height: 22px;
    margin-top: -10px;
    border: none;
    border-radius: 50%;
    background: var(--vass-accent);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.28);
  }
  .m-sheet .dc-slider::-moz-range-track {
    height: 3px;
    border: none;
    border-radius: 2px;
    background: var(--vass-surface-4);
  }
  .m-sheet .dc-slider::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border: none;
    border-radius: 50%;
    background: var(--vass-accent);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.28);
  }

  /* 粒子 / 等值线、主题、dat.GUI：收进底部菜单 */
  .let-wrap,
  .ctp-wrap,
  .dg.ac {
    display: none;
  }
  .m-sheet .lsc-container,
  .m-sheet .let-wrap,
  .m-sheet .ctp-wrap,
  .m-sheet .dg.ac {
    display: block;
    position: relative !important;
    top: auto !important;
    right: auto !important;
    left: auto !important;
    width: 100% !important;
    max-width: none !important;
    min-width: 0 !important;
    margin: 0 0 12px !important;
  }
  .m-sheet .lsc-header {
    display: none;
  }
  .m-sheet .lsc-content {
    padding: 12px;
  }
  .m-sheet .lsc-section + .lsc-section {
    margin-top: 14px;
    padding-top: 14px;
  }
  .m-sheet .lsc-section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: none;
    color: var(--vass-text-muted);
    margin-bottom: 8px;
    opacity: 1;
  }
  .m-sheet .lsc-select {
    font-size: 16px;
    min-height: 44px;
    line-height: 1.25;
    padding: 10px 36px 10px 12px;
    border-radius: 10px;
    background-color: var(--vass-bg-panel);
    background-position: right 12px center;
    color: var(--vass-text-bright);
    border-color: var(--vass-border-mid);
  }
  .m-sheet .lsc-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    max-height: none;
    overflow: hidden;
    border-radius: 10px;
    background: var(--vass-divider);
    border: 1px solid var(--vass-border-soft);
  }
  .m-sheet .lsc-item {
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 5px;
    padding: 8px 8px;
    font-size: 13px;
    font-weight: 500;
    border: none;
    background: var(--vass-bg-panel);
    -webkit-tap-highlight-color: transparent;
  }
  .m-sheet .lsc-item-icon {
    width: 15px;
    height: 15px;
  }
  .m-sheet .lsc-item-icon svg {
    width: 15px;
    height: 15px;
  }
  .m-sheet .lsc-item-label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .m-sheet .lsc-tip-toggle {
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 3px;
    font-size: 10px;
    letter-spacing: 0;
    min-height: 0;
    padding: 0;
    line-height: 1;
    max-width: none;
    text-align: left;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .m-sheet .lsc-tip-checkbox {
    width: 15px;
    height: 15px;
  }
  .m-sheet .lsc-item:last-child {
    border-bottom: none;
  }
  .m-sheet .lsc-item:hover {
    padding-left: 10px;
  }
  .m-sheet .lsc-item--active {
    background: var(--vass-active-bg);
    color: var(--vass-text-emphasis);
    font-weight: 600;
    border-left: none;
    padding-left: 10px;
  }
  .m-sheet .lsc-sync-row {
    margin-top: 10px;
    padding: 8px 0 0;
  }
  .m-sheet .lsc-sync-label {
    font-size: 13px;
    min-height: 32px;
    gap: 8px;
  }
  .m-sheet .lsc-sync-checkbox {
    width: 18px;
    height: 18px;
    margin: 0;
  }
  .m-sheet .dg.ac {
    z-index: 0 !important;
    inset: auto !important;
    height: auto !important;
    overflow: hidden;
    pointer-events: none !important;
  }
  .m-sheet .dg.main {
    width: 100% !important;
    float: none !important;
    position: relative !important;
    pointer-events: auto !important;
  }
  .m-sheet .dg ul {
    max-height: none !important;
  }
  .m-sheet .dg .close-button {
    height: 36px;
    line-height: 36px;
    text-align: center;
  }
  .m-sheet .let-wrap {
    box-sizing: border-box;
    padding: 8px 12px;
    margin-bottom: 8px !important;
  }
  .m-sheet .let-row {
    min-height: 32px;
    font-size: 13px;
    gap: 8px;
    padding: 0;
  }
  .m-sheet .let-row input {
    width: 18px;
    height: 18px;
    margin: 0;
  }
  .m-sheet .ctp-wrap {
    max-width: none;
    width: 100%;
    padding: 8px 12px;
    margin-bottom: 8px !important;
  }
  .m-sheet .ctp-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.4px;
    color: var(--vass-text-muted);
    margin-bottom: 6px;
  }
  .m-sheet .ctp-row--theme {
    flex-direction: row;
    align-items: center;
  }
  .m-sheet .ctp-theme-label {
    flex-direction: row;
    align-items: center;
    gap: 8px;
    font-size: 13px;
  }
  .m-sheet .ctp-theme-select {
    flex: 1;
    min-width: 0;
    font-size: 14px;
    min-height: 32px;
    padding: 4px 28px 4px 8px;
    border-radius: 8px;
  }
  .m-sheet .ctp-row--accent {
    margin-top: 6px;
    padding-top: 6px;
    flex-direction: row;
    align-items: center;
    gap: 8px;
  }
  .m-sheet .ctp-row--accent .ctp-accent-label {
    flex: 1;
    min-width: 0;
    font-size: 13px;
  }
  .m-sheet .ctp-btn-reset {
    width: auto;
    min-height: 32px;
    padding: 4px 12px;
    font-size: 13px;
    border-radius: 8px;
    flex: 0 0 auto;
  }
  .m-sheet .ctp-wrap input[type='color'] {
    width: 28px;
    height: 24px;
  }

  /* ── 品牌：正上方居中 ── */
  .vass-brand {
    top: calc(var(--m-safe-top) + var(--m-colorbar-h) + 8px);
    left: 50%;
    right: auto;
    bottom: auto;
    transform: translateX(-50%);
  }
  .vass-brand img {
    height: 48px;
    max-width: 220px;
  }

  /* ── 顶部信息条 ── */
  .m-hud {
    display: none;
    position: fixed;
    z-index: 1003;
    top: calc(var(--m-safe-top) + 10px);
    left: 12px;
    right: auto;
    max-width: calc(50vw - 80px);
    pointer-events: none;
    color: #fff;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.75), 0 0 12px rgba(0, 0, 0, 0.4);
    font-family: var(--font-ui);
  }
  .m-hud-name {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.4px;
    line-height: 1.2;
  }
  .m-hud-meta {
    margin-top: 2px;
    font-size: 12px;
    font-weight: 500;
    opacity: 0.88;
    letter-spacing: 0.3px;
  }

  /* ── FAB + 底部菜单 ── */
  .m-chrome {
    display: block;
  }
  .m-fab {
    position: fixed;
    z-index: 1100;
    right: calc(12px + var(--m-safe-right));
    bottom: calc(var(--m-bottom-stack) + var(--m-timeline-h) + 12px);
    width: clamp(44px, 12vw, 52px);
    height: clamp(44px, 12vw, 52px);
    padding: 0;
    border: 1px solid var(--vass-border);
    border-radius: 50%;
    background: var(--vass-bg-panel);
    color: var(--vass-text-bright);
    box-shadow: var(--vass-shadow);
    backdrop-filter: blur(var(--vass-backdrop-blur));
    -webkit-backdrop-filter: blur(var(--vass-backdrop-blur));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }
  .m-fab svg {
    width: clamp(19px, 5.2vw, 22px);
    height: clamp(19px, 5.2vw, 22px);
  }
  .m-fab:active {
    transform: scale(0.96);
  }
  .m-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1200;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease;
  }
  .m-sheet {
    position: fixed;
    z-index: 1210;
    left: 0;
    right: 0;
    bottom: 0;
    max-height: min(82vh, 720px);
    padding-bottom: var(--m-safe-bottom);
    background: var(--vass-bg-panel);
    backdrop-filter: blur(var(--vass-backdrop-blur, 16px)) saturate(var(--vass-backdrop-saturate, 1.3));
    -webkit-backdrop-filter: blur(var(--vass-backdrop-blur, 16px)) saturate(var(--vass-backdrop-saturate, 1.3));
    border-top: 1px solid var(--vass-border-soft);
    border-radius: 20px 20px 0 0;
    box-shadow: var(--vass-shadow-tl);
    color: var(--vass-text);
    transform: translateY(110%);
    transition: transform 0.28s ease;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    pointer-events: none;
  }
  .m-sheet-grabber {
    width: 36px;
    height: 4px;
    margin: 8px auto 0;
    border-radius: 2px;
    background: var(--vass-surface-4);
    flex-shrink: 0;
  }
  .m-sheet-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px 12px;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.2px;
    color: var(--vass-text-bright);
    flex-shrink: 0;
  }
  .m-sheet-close {
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: var(--vass-surface-1);
    color: var(--vass-text-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }
  .m-sheet-close:active {
    background: var(--vass-surface-2);
    color: var(--vass-text-bright);
  }
  .m-sheet-body {
    padding: 0 16px 16px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    flex: 1;
    scrollbar-width: none;
  }
  .m-sheet-body::-webkit-scrollbar {
    display: none;
  }

  html.is-mobile-menu-open .m-backdrop {
    display: block;
    opacity: 1;
    pointer-events: auto;
  }
  html.is-mobile-menu-open .m-sheet {
    transform: translateY(0);
    pointer-events: auto;
  }
  html.is-mobile-menu-open .m-fab {
    display: none;
  }
  html.is-mobile-menu-open .lvp-overlay,
  html.is-mobile-menu-open .lvp-crosshair {
    display: none !important;
    pointer-events: none !important;
  }

  .lvp-overlay.lvp-picker {
    top: var(--m-safe-top);
    z-index: 1050;
  }
  body:has(.lvp-picker.is-visible) .vass-brand,
  body:has(.lvp-picker.is-visible) .m-hud {
    opacity: 0;
  }
  .lvp-crosshair {
    top: calc(50% - var(--m-timeline-h) / 2 - 6px);
  }
  .lvp-picker .lvp-inner {
    max-width: none;
    font-size: 12px;
  }
  .tile-error-toast {
    max-width: min(240px, calc(100vw - 88px));
  }

  @media (prefers-reduced-motion: reduce) {
    .m-sheet,
    .m-backdrop {
      transition: none;
    }
  }
}

@media (max-width: 768px) and (max-height: 500px) and (orientation: landscape) {
  .m-hud-name { font-size: 14px; }
  .vass-brand img { height: 36px; }
  .m-fab {
    bottom: calc(var(--m-bottom-stack) + var(--m-timeline-h) + 12px);
  }
  .m-sheet {
    max-height: 92vh;
  }
}