/* ==========================================================================
   Windows 11 Fluent Design System - AI Images Previewer
   ========================================================================== */

:root {
  /* Dark Theme Tokens (Default) */
  --win-bg: #202020;
  --win-titlebar-bg: #1c1c1c;
  --win-subtle-bg: rgba(255, 255, 255, 0.04);
  --win-card-bg: rgba(255, 255, 255, 0.06);
  --win-card-hover: rgba(255, 255, 255, 0.09);
  --win-border: rgba(255, 255, 255, 0.08);
  --win-border-subtle: rgba(255, 255, 255, 0.04);
  --win-text-primary: #ffffff;
  --win-text-secondary: rgba(255, 255, 255, 0.68);
  --win-text-tertiary: rgba(255, 255, 255, 0.45);
  
  --win-accent: #0078d4;
  --win-accent-light: #60cdff;
  --win-accent-hover: #1a8ad4;
  --win-accent-glow: rgba(96, 205, 255, 0.25);

  --win-acrylic-bg: rgba(32, 32, 32, 0.82);
  --win-acrylic-solid: #2c2c2c;
  --win-mica-blur: blur(28px) saturate(180%);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --shadow-flyout: 0 12px 32px rgba(0, 0, 0, 0.45), 0 2px 6px rgba(0, 0, 0, 0.2);
  --shadow-elevation: 0 4px 16px rgba(0, 0, 0, 0.3);
  --trans-fast: 0.16s cubic-bezier(0.1, 0.9, 0.2, 1);
  --trans-normal: 0.25s cubic-bezier(0.1, 0.9, 0.2, 1);

  --sidebar-width: 380px;
}

/* Light Theme Variables */
body.theme-light {
  --win-bg: #f3f3f3;
  --win-titlebar-bg: #eaeaea;
  --win-subtle-bg: rgba(0, 0, 0, 0.03);
  --win-card-bg: #ffffff;
  --win-card-hover: #f9f9f9;
  --win-border: rgba(0, 0, 0, 0.09);
  --win-border-subtle: rgba(0, 0, 0, 0.05);
  --win-text-primary: #191919;
  --win-text-secondary: rgba(0, 0, 0, 0.62);
  --win-text-tertiary: rgba(0, 0, 0, 0.4);

  --win-accent: #0067b8;
  --win-accent-light: #0078d4;
  --win-accent-hover: #005aa0;
  --win-accent-glow: rgba(0, 103, 184, 0.18);

  --win-acrylic-bg: rgba(243, 243, 243, 0.88);
  --win-acrylic-solid: #ffffff;
  --shadow-flyout: 0 12px 32px rgba(0, 0, 0, 0.14), 0 2px 6px rgba(0, 0, 0, 0.06);
  --shadow-elevation: 0 4px 16px rgba(0, 0, 0, 0.08);
}

/* ==========================================================================
   Base & Resets
   ========================================================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: "Segoe UI Variable", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  color: var(--win-text-primary);
  background-color: var(--win-bg);
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Custom Windows 11 Thin Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.16);
  border-radius: 10px;
}
body.theme-light ::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

button, input, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  outline: none;
  border: none;
}

.font-mono {
  font-family: "JetBrains Mono", Consolas, "Courier New", monospace;
}

/* ==========================================================================
   Window Frame Layout
   ========================================================================== */

.win-window {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  background-color: var(--win-bg);
  position: relative;
  overflow: hidden;
  transition: all var(--trans-normal);
}

/* ==========================================================================
   1. Title Bar
   ========================================================================== */

.win-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 38px;
  background: var(--win-titlebar-bg);
  border-bottom: 1px solid var(--win-border-subtle);
  flex-shrink: 0;
  padding: 0 0 0 12px;
  z-index: 50;
  transition: transform var(--trans-normal), opacity var(--trans-normal);
}

.titlebar-drag-region {
  display: flex;
  align-items: center;
  flex: 1;
  height: 100%;
}

.titlebar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--win-text-secondary);
  letter-spacing: 0.2px;
}

.titlebar-divider {
  width: 1px;
  height: 12px;
  background: var(--win-border);
  margin: 0 2px;
}

.folder-name-pill {
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--win-accent-light);
  font-weight: 500;
}

.current-filename {
  font-size: 12px;
  font-weight: 500;
  color: var(--win-text-primary);
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.zoom-badge-pill {
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 10px;
  background: var(--win-subtle-bg);
  border: 1px solid var(--win-border);
  color: var(--win-accent-light);
  font-family: "JetBrains Mono", monospace;
  font-weight: 500;
}

/* 纯净无广告徽标 */
.clean-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  color: #34d399;
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.25);
  padding: 2px 8px;
  border-radius: 12px;
  margin-right: 8px;
}

/* Title bar right control buttons */
.titlebar-actions {
  display: flex;
  align-items: center;
  height: 100%;
}

.titlebar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--win-text-secondary);
  cursor: pointer;
  transition: background var(--trans-fast), color var(--trans-fast);
}

.titlebar-btn:hover {
  background: var(--win-subtle-bg);
  color: var(--win-text-primary);
}

/* Theme icon toggling */
body.theme-dark .icon-sun { display: inline-block; }
body.theme-dark .icon-moon { display: none; }
body.theme-light .icon-sun { display: none; }
body.theme-light .icon-moon { display: inline-block; }

.win-control-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 100%;
  background: transparent;
  color: var(--win-text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: background var(--trans-fast), color var(--trans-fast);
}

.win-control-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--win-text-primary);
}

body.theme-light .win-control-btn:hover {
  background: rgba(0, 0, 0, 0.06);
}

.win-control-btn.win-close:hover {
  background: #e81123 !important;
  color: #ffffff !important;
}

/* ==========================================================================
   2. Windows 11 Command Bar (Ribbon Bar)
   ========================================================================== */

.win-commandbar {
  display: flex;
  align-items: center;
  height: 48px;
  padding: 0 12px;
  background: var(--win-acrylic-bg);
  backdrop-filter: var(--win-mica-blur);
  -webkit-backdrop-filter: var(--win-mica-blur);
  border-bottom: 1px solid var(--win-border);
  gap: 4px;
  flex-shrink: 0;
  z-index: 40;
  transition: transform var(--trans-normal), opacity var(--trans-normal);
}

.cmd-group {
  display: flex;
  align-items: center;
  gap: 2px;
}

.cmd-separator {
  width: 1px;
  height: 20px;
  background: var(--win-border);
  margin: 0 6px;
}

.cmd-spacer {
  flex: 1;
}

.cmd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 10px;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--win-text-secondary);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--trans-fast);
  font-weight: 500;
}

.cmd-btn.icon-only {
  width: 34px;
  padding: 0;
}

.cmd-btn:hover {
  background: var(--win-subtle-bg);
  color: var(--win-text-primary);
  border-color: var(--win-border-subtle);
}

.cmd-btn:active {
  transform: scale(0.96);
  background: var(--win-card-hover);
}

.cmd-btn.active,
.cmd-btn.active-accent {
  background: rgba(96, 205, 255, 0.12);
  color: var(--win-accent-light);
  border-color: rgba(96, 205, 255, 0.3);
}

.cmd-btn.active-heart {
  color: #ff477e !important;
}
.cmd-btn.active-heart svg {
  fill: #ff477e !important;
}

.cmd-label {
  font-size: 12px;
}

/* 滚轮双模切换胶囊 */
.toggle-capsule {
  display: flex;
  align-items: center;
  background: var(--win-subtle-bg);
  border: 1px solid var(--win-border);
  border-radius: 16px;
  padding: 2px;
  cursor: pointer;
  transition: border-color var(--trans-fast);
}

.toggle-capsule:hover {
  border-color: rgba(96, 205, 255, 0.35);
}

.capsule-opt {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 14px;
  color: var(--win-text-tertiary);
  transition: all var(--trans-fast);
  white-space: nowrap;
}

.capsule-opt.active {
  background: var(--win-accent);
  color: #ffffff;
  font-weight: 600;
}

/* Zoom Dropdown & Flyout Menu */
.zoom-dropdown-wrapper,
.filter-dropdown-wrapper {
  position: relative;
}

.zoom-display-btn {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  padding: 0 8px;
  gap: 4px;
}

.dropdown-chevron {
  opacity: 0.6;
}

.flyout-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 150px;
  background: var(--win-acrylic-solid);
  border: 1px solid var(--win-border);
  border-radius: var(--radius-md);
  padding: 4px;
  box-shadow: var(--shadow-flyout);
  display: none;
  flex-direction: column;
  z-index: 100;
  backdrop-filter: var(--win-mica-blur);
  animation: flyoutFadeIn 0.15s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.flyout-menu.open {
  display: flex;
}

.menu-item {
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12px;
  color: var(--win-text-secondary);
  transition: background var(--trans-fast), color var(--trans-fast);
}

.menu-item:hover {
  background: var(--win-accent);
  color: #ffffff;
}

/* Filter Adjustment Flyout Panel */
.flyout-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: 270px;
  background: var(--win-acrylic-solid);
  border: 1px solid var(--win-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-flyout);
  display: none;
  flex-direction: column;
  gap: 14px;
  z-index: 100;
  animation: flyoutFadeIn 0.15s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.flyout-panel.open {
  display: flex;
}

.filter-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  font-size: 13px;
  border-bottom: 1px solid var(--win-border-subtle);
  padding-bottom: 8px;
}

.btn-text-action {
  background: none;
  color: var(--win-accent-light);
  cursor: pointer;
  font-size: 12px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}
.btn-text-action:hover {
  background: var(--win-subtle-bg);
}

.filter-control-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.filter-control-row label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--win-text-secondary);
}

.filter-control-row input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--win-border);
  cursor: pointer;
}

.filter-control-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--win-accent-light);
  border: 2px solid var(--win-bg);
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
  transition: transform 0.1s;
}

.filter-control-row input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.filter-preset-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: 4px;
}

.chip-btn {
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 11px;
  background: var(--win-subtle-bg);
  border: 1px solid var(--win-border);
  color: var(--win-text-secondary);
  cursor: pointer;
  transition: all var(--trans-fast);
}

.chip-btn:hover {
  background: var(--win-card-hover);
  color: var(--win-text-primary);
}

.chip-btn.active {
  background: var(--win-accent);
  color: #ffffff;
  border-color: var(--win-accent);
}

@keyframes flyoutFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   3. Main Content Body & Viewport
   ========================================================================== */

.win-content-body {
  display: flex;
  flex: 1;
  position: relative;
  overflow: hidden;
  height: calc(100vh - 86px);
}

.viewer-viewport-container {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.02) 0%, transparent 80%), var(--win-bg);
}

/* Edge navigation arrows (Prev / Next - Left/Right) */
.nav-edge-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 72px;
  border-radius: var(--radius-md);
  background: rgba(30, 30, 30, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--win-border);
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 25;
  opacity: 0;
  transition: opacity var(--trans-normal), background var(--trans-fast), transform var(--trans-fast);
}

.viewer-viewport-container:hover .nav-edge-arrow {
  opacity: 0.85;
}

.nav-edge-arrow:hover {
  opacity: 1 !important;
  background: rgba(45, 45, 45, 0.8);
  color: #ffffff;
  transform: translateY(-50%) scale(1.05);
}

.nav-prev { left: 16px; }
.nav-next { right: 16px; }

/* 针对痛点三：上下翻页悬浮导引按键 */
.nav-vertical-arrow {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(30, 30, 30, 0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--win-border);
  color: rgba(255, 255, 255, 0.8);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  z-index: 26;
  opacity: 0;
  transition: opacity var(--trans-normal), background var(--trans-fast), transform var(--trans-fast);
}

.viewer-viewport-container:hover .nav-vertical-arrow {
  opacity: 0.75;
}

.nav-vertical-arrow:hover {
  opacity: 1 !important;
  background: rgba(0, 120, 212, 0.8);
  color: #ffffff;
  transform: translateX(-50%) scale(1.05);
}

.nav-up { top: 16px; }
.nav-down { bottom: 120px; }

/* 针对痛点二：鹰眼导航小地图 (Navigator Mini-Map) */
.minimap-panel {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 160px;
  background: rgba(25, 25, 25, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--win-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-elevation);
  padding: 8px;
  z-index: 28;
  display: flex;
  flex-direction: column;
  gap: 6px;
  animation: flyoutFadeIn 0.2s;
}

.minimap-header {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--win-text-secondary);
  font-weight: 600;
}

.minimap-canvas-box {
  position: relative;
  width: 100%;
  height: 90px;
  background: #111111;
  border-radius: 4px;
  overflow: hidden;
  cursor: crosshair;
}

.minimap-canvas-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0.8;
  pointer-events: none;
}

.minimap-viewport-indicator {
  position: absolute;
  border: 2px solid var(--win-accent-light);
  background: rgba(96, 205, 255, 0.2);
  cursor: move;
  border-radius: 2px;
}

/* Image Canvas Stage */
.image-stage {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  overflow: hidden;
  position: relative;
}

.image-stage.panning {
  cursor: grabbing;
}

.main-canvas-image {
  max-width: none;
  max-height: none;
  transform-origin: center center;
  transition: filter var(--trans-fast);
  will-change: transform, filter;
  pointer-events: auto;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  border-radius: 4px;
}

/* ==========================================================================
   针对痛点二：文件夹全景相册网格模式 (Grid Gallery Stage)
   ========================================================================== */

.grid-gallery-stage {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--win-bg);
  z-index: 22;
  overflow: hidden;
}

.grid-gallery-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  border-bottom: 1px solid var(--win-border-subtle);
  background: var(--win-subtle-bg);
}

.grid-stats {
  font-size: 13px;
  font-weight: 600;
  color: var(--win-text-primary);
}

.grid-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--win-text-secondary);
}

.grid-controls input[type="range"] {
  width: 90px;
  cursor: pointer;
}

.grid-sort-select {
  background: var(--win-card-bg);
  border: 1px solid var(--win-border);
  color: var(--win-text-primary);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  outline: none;
}

.grid-sort-select:hover {
  border-color: var(--win-accent-light);
}

.grid-filter-chips-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 24px;
  background: rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid var(--win-border-subtle);
  overflow-x: auto;
}

.filter-label {
  font-size: 11px;
  color: var(--win-text-tertiary);
  white-space: nowrap;
}

.chips-scroll-wrap {
  display: flex;
  gap: 6px;
  align-items: center;
  overflow-x: auto;
}

.grid-tag-chip {
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  background: var(--win-subtle-bg);
  border: 1px solid var(--win-border);
  color: var(--win-text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--trans-fast);
}

.grid-tag-chip:hover {
  background: var(--win-card-hover);
  color: var(--win-text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.grid-tag-chip.active {
  background: var(--win-accent);
  color: #ffffff;
  border-color: var(--win-accent);
  font-weight: 600;
}

.grid-cards-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  align-content: start;
}

.grid-card {
  position: relative;
  background: var(--win-card-bg);
  border: 1px solid var(--win-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--trans-fast);
  display: flex;
  flex-direction: column;
}

.grid-card:hover {
  transform: translateY(-4px);
  border-color: var(--win-accent-light);
  box-shadow: var(--shadow-elevation);
}

.grid-card.active {
  border-color: var(--win-accent-light);
  box-shadow: 0 0 12px var(--win-accent-glow);
}

.grid-card-thumb-wrap {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #111;
  overflow: hidden;
  position: relative;
}

.grid-card-thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.grid-card:hover .grid-card-thumb-wrap img {
  transform: scale(1.05);
}

.grid-card-meta {
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.grid-card-title {
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--win-text-primary);
}

.grid-card-sub {
  font-size: 11px;
  color: var(--win-text-tertiary);
  display: flex;
  justify-content: space-between;
}

/* ==========================================================================
   针对痛点三：纵向连续长卷轴瀑布流模式 (Vertical Continuous Scroll)
   ========================================================================== */

.vertical-scroll-stage {
  position: absolute;
  inset: 0;
  background: #181818;
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 22;
  padding: 40px 0;
  display: flex;
  justify-content: center;
}

.vertical-scroll-container {
  width: 100%;
  max-width: 1100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 0 20px;
}

.vertical-scroll-item {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--win-border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.vertical-scroll-item img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

.vertical-scroll-caption {
  font-size: 12px;
  color: var(--win-text-secondary);
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ==========================================================================
   A/B Compare Split View Mode
   ========================================================================== */

.compare-stage {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.compare-img-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.compare-img {
  max-width: 90%;
  max-height: 85%;
  object-fit: contain;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  border-radius: 4px;
  pointer-events: none;
}

.before-container {
  z-index: 10;
  clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
}

.after-container {
  z-index: 5;
  filter: contrast(1.15) saturate(1.2) brightness(1.05);
}

.compare-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--win-accent-light);
  transform: translateX(-50%);
  z-index: 20;
  cursor: ew-resize;
  box-shadow: 0 0 12px var(--win-accent-glow);
}

.divider-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--win-acrylic-solid);
  border: 2px solid var(--win-accent-light);
  box-shadow: var(--shadow-elevation);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--win-accent-light);
}

.compare-badge {
  position: absolute;
  top: 24px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 22;
}

.badge-before {
  left: 24px;
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.badge-after {
  right: 24px;
  background: rgba(0, 120, 212, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
}

/* Floating HUD status capsule */
.floating-hud {
  position: absolute;
  bottom: 116px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(28, 28, 28, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--win-border);
  border-radius: 20px;
  box-shadow: var(--shadow-elevation);
  z-index: 28;
  font-size: 11px;
  color: var(--win-text-secondary);
  pointer-events: auto;
  transition: bottom var(--trans-normal);
}

body.theme-light .floating-hud {
  background: rgba(255, 255, 255, 0.85);
}

.hud-item {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.hud-counter {
  font-weight: 600;
  color: var(--win-text-primary);
}

.hud-format {
  padding: 1px 4px;
  background: var(--win-subtle-bg);
  border-radius: 4px;
  font-weight: 700;
  color: var(--win-accent-light);
}

.hud-zoom-scale {
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  color: var(--win-text-primary);
}

.hud-divider {
  width: 1px;
  height: 10px;
  background: var(--win-border);
}

/* Drag and drop overlay */
.drag-drop-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 120, 212, 0.15);
  backdrop-filter: blur(12px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 60;
  border: 2px dashed var(--win-accent);
}

.drag-drop-overlay.drag-over {
  display: flex;
}

.drag-drop-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: var(--win-acrylic-solid);
  padding: 32px 48px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-flyout);
  text-align: center;
}

/* ==========================================================================
   4. Bottom Filmstrip Gallery
   ========================================================================== */

.bottom-filmstrip-wrapper {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: var(--win-acrylic-bg);
  backdrop-filter: var(--win-mica-blur);
  -webkit-backdrop-filter: var(--win-mica-blur);
  border-top: 1px solid var(--win-border);
  display: flex;
  flex-direction: column;
  z-index: 30;
  transition: transform var(--trans-normal);
}

.bottom-filmstrip-wrapper.collapsed {
  transform: translateY(70px);
}

.bottom-filmstrip-wrapper.collapsed ~ .floating-hud {
  bottom: 44px;
}

.filmstrip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 24px;
  padding: 0 16px;
  font-size: 11px;
  color: var(--win-text-secondary);
}

.filmstrip-title {
  font-weight: 500;
}

.filmstrip-toggle-btn {
  background: transparent;
  color: var(--win-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-sm);
  transition: transform var(--trans-fast), color var(--trans-fast);
}

.filmstrip-toggle-btn:hover {
  color: var(--win-text-primary);
}

.bottom-filmstrip-wrapper.collapsed .filmstrip-toggle-btn svg {
  transform: rotate(180deg);
}

.filmstrip-scroll-area {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  overflow-x: auto;
  overflow-y: hidden;
  height: 76px;
}

.thumb-card {
  position: relative;
  flex-shrink: 0;
  width: 90px;
  height: 60px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  background: var(--win-card-bg);
  transition: all var(--trans-fast);
}

.thumb-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.thumb-card:hover {
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.thumb-card.active {
  border-color: var(--win-accent-light);
  box-shadow: 0 0 10px var(--win-accent-glow);
  transform: translateY(-2px);
}

.thumb-card .thumb-badge {
  position: absolute;
  bottom: 3px;
  right: 3px;
  background: rgba(0, 0, 0, 0.7);
  color: #ffffff;
  font-size: 9px;
  padding: 1px 4px;
  border-radius: 4px;
  font-family: monospace;
}

/* ==========================================================================
   5. Right Sidebar (AI Metadata & Inspector Drawer)
   ========================================================================== */

.win-sidebar-drawer {
  width: var(--sidebar-width);
  height: 100%;
  background: var(--win-acrylic-bg);
  backdrop-filter: var(--win-mica-blur);
  -webkit-backdrop-filter: var(--win-mica-blur);
  border-left: 1px solid var(--win-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 35;
  transition: width var(--trans-normal), transform var(--trans-normal), margin-right var(--trans-normal), opacity var(--trans-normal);
}

.win-sidebar-drawer.closed {
  margin-right: calc(-1 * var(--sidebar-width));
  transform: translateX(20px);
  pointer-events: none;
  opacity: 0;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--win-border-subtle);
}

.sidebar-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--win-accent-light);
}

.sidebar-title-row h2 {
  font-size: 14px;
  font-weight: 600;
  color: var(--win-text-primary);
}

.sidebar-close-btn {
  background: transparent;
  color: var(--win-text-secondary);
  cursor: pointer;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background var(--trans-fast), color var(--trans-fast);
}

.sidebar-close-btn:hover {
  background: var(--win-subtle-bg);
  color: var(--win-text-primary);
}

.sidebar-tab-nav {
  display: flex;
  padding: 6px 16px 0;
  gap: 8px;
  border-bottom: 1px solid var(--win-border-subtle);
}

.tab-btn {
  background: transparent;
  color: var(--win-text-secondary);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 12px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color var(--trans-fast), border-color var(--trans-fast);
}

.tab-btn:hover {
  color: var(--win-text-primary);
}

.tab-btn.active {
  color: var(--win-accent-light);
  border-bottom-color: var(--win-accent-light);
  font-weight: 600;
}

.sidebar-content-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tab-pane {
  display: none;
  flex-direction: column;
  gap: 14px;
}

.tab-pane.active {
  display: flex;
}

/* Meta Cards */
.meta-card {
  background: var(--win-card-bg);
  border: 1px solid var(--win-border);
  border-radius: var(--radius-lg);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--trans-fast);
}

.meta-card:hover {
  border-color: rgba(255, 255, 255, 0.14);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--win-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.btn-copy-small {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--win-subtle-bg);
  border: 1px solid var(--win-border);
  color: var(--win-text-secondary);
  font-size: 11px;
  cursor: pointer;
  transition: all var(--trans-fast);
}

.btn-copy-small:hover {
  background: var(--win-accent);
  color: #ffffff;
  border-color: var(--win-accent);
}

.prompt-text {
  font-size: 12px;
  line-height: 1.6;
  color: var(--win-text-primary);
  word-break: break-word;
  background: rgba(0, 0, 0, 0.2);
  padding: 10px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--win-accent);
  max-height: 130px;
  overflow-y: auto;
  user-select: text;
  -webkit-user-select: text;
}

.negative-card .prompt-text {
  border-left-color: #ff5252;
}

/* AI Parameters Grid */
.params-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.param-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: rgba(0, 0, 0, 0.15);
  padding: 8px 10px;
  border-radius: var(--radius-md);
}

.param-label {
  font-size: 11px;
  color: var(--win-text-tertiary);
}

.param-value {
  font-size: 12px;
  font-weight: 600;
  color: var(--win-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.param-value.highlight {
  color: var(--win-accent-light);
}

.seed-val-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.btn-tiny-icon {
  background: none;
  cursor: pointer;
  color: var(--win-text-tertiary);
  font-size: 12px;
  padding: 0 4px;
}
.btn-tiny-icon:hover {
  color: var(--win-text-primary);
}

/* Tag Cloud */
.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ai-tag {
  padding: 3px 8px;
  background: rgba(96, 205, 255, 0.08);
  border: 1px solid rgba(96, 205, 255, 0.2);
  color: var(--win-accent-light);
  border-radius: 12px;
  font-size: 11px;
}

/* EXIF Meta Table */
.meta-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.meta-table tr {
  border-bottom: 1px solid var(--win-border-subtle);
}

.meta-table tr:last-child {
  border-bottom: none;
}

.meta-table td {
  padding: 7px 4px;
}

.meta-table td:first-child {
  color: var(--win-text-tertiary);
  width: 35%;
}

.meta-table td:last-child {
  color: var(--win-text-primary);
  word-break: break-all;
}

.text-truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}

/* Color Palette Swatches */
.palette-swatches {
  display: flex;
  height: 28px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--win-border);
}

.swatch {
  flex: 1;
  height: 100%;
  cursor: pointer;
  transition: transform var(--trans-fast);
}

.swatch:hover {
  transform: scaleY(1.15);
  z-index: 2;
}

/* Workflow Step List */
.workflow-steps-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.15);
}

.step-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--win-border);
  margin-top: 5px;
}

.step-dot.active {
  background: var(--win-accent-light);
  box-shadow: 0 0 6px var(--win-accent-glow);
}

.step-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.step-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--win-text-primary);
}

.step-detail {
  font-size: 11px;
  color: var(--win-text-tertiary);
  font-family: "JetBrains Mono", monospace;
}

/* ==========================================================================
   针对痛点一：沉浸纯净模式 (Zen / Pure Immersive Mode)
   ========================================================================== */

body.zen-mode .win-titlebar {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

body.zen-mode .win-commandbar {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

body.zen-mode .win-content-body {
  height: 100vh;
}

body.zen-mode .bottom-filmstrip-wrapper {
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}

body.zen-mode .win-sidebar-drawer {
  margin-right: calc(-1 * var(--sidebar-width));
  opacity: 0;
  pointer-events: none;
}

body.zen-mode .floating-hud {
  opacity: 0;
  pointer-events: none;
}

body.zen-mode .nav-edge-arrow,
body.zen-mode .nav-vertical-arrow {
  opacity: 0;
}

body.zen-mode .viewer-viewport-container:hover .nav-edge-arrow,
body.zen-mode .viewer-viewport-container:hover .nav-vertical-arrow {
  opacity: 0.45;
}

/* 沉浸退出提示浮层 */
.zen-exit-hint {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(0, 0, 0, 0.75);
  border: 1px solid var(--win-border);
  color: rgba(255, 255, 255, 0.85);
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 12px;
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
}

body.zen-mode .zen-exit-hint {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* 沉浸模式下鼠标闲置自动隐藏光标 */
body.zen-mode.idle-cursor {
  cursor: none;
}
body.zen-mode.idle-cursor * {
  cursor: none !important;
}

/* ==========================================================================
   6. Modal & Toast
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  animation: modalFadeIn 0.2s cubic-bezier(0.1, 0.9, 0.2, 1);
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-card {
  width: 540px;
  max-width: 90vw;
  background: var(--win-acrylic-solid);
  border: 1px solid var(--win-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-flyout);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--win-border-subtle);
}

.modal-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-title h3 {
  font-size: 15px;
  font-weight: 600;
}

.modal-close-btn {
  background: transparent;
  color: var(--win-text-secondary);
  cursor: pointer;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close-btn:hover {
  background: var(--win-subtle-bg);
  color: var(--win-text-primary);
}

.modal-body {
  padding: 20px;
  max-height: 70vh;
  overflow-y: auto;
}

.shortcuts-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-radius: var(--radius-md);
  background: var(--win-subtle-bg);
}

.shortcut-row span {
  font-size: 12px;
  color: var(--win-text-secondary);
}

kbd {
  display: inline-block;
  padding: 2px 7px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--win-text-primary);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--win-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Toast */
.win-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--win-acrylic-solid);
  border: 1px solid var(--win-border);
  box-shadow: var(--shadow-flyout);
  padding: 10px 18px;
  border-radius: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 500;
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.win-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #107c41;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
}

/* ==========================================================================
   直方图与 ComfyUI 节点拓扑图增强样式
   ========================================================================== */

.histogram-card {
  padding: 12px 14px;
}

.histogram-legend {
  display: flex;
  gap: 6px;
  font-size: 10px;
  font-weight: 700;
  font-family: "JetBrains Mono", monospace;
}

.legend-r { color: #ff5252; }
.legend-g { color: #4caf50; }
.legend-b { color: #40c4ff; }
.legend-l { color: #ffffff; }

.histogram-canvas {
  width: 100%;
  height: 90px;
  border-radius: var(--radius-sm);
  background: #121212;
  border: 1px solid var(--win-border);
  margin-top: 4px;
}

/* 节点图模态窗 */
.nodegraph-modal-card {
  width: 760px;
  max-width: 92vw;
}

.nodegraph-modal-body {
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.nodegraph-canvas-wrap {
  width: 100%;
  height: 420px;
  background: #151515;
  border: 1px solid var(--win-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.nodegraph-footer {
  font-size: 12px;
  color: var(--win-text-secondary);
}

/* SVG 节点图元素 */
.node-box {
  cursor: pointer;
  transition: filter 0.15s ease;
}
.node-box:hover {
  filter: brightness(1.15);
}
.node-link {
  fill: none;
  stroke: rgba(96, 205, 255, 0.45);
  stroke-width: 2px;
  stroke-dasharray: 6 3;
  animation: linkFlow 20s linear infinite;
}
@keyframes linkFlow {
  from { stroke-dashoffset: 200; }
  to { stroke-dashoffset: 0; }
}