/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --accent: #007AFF;
  --accent-dark: #0A84FF;
  --radius-card: 18px;
  --radius-modal: 22px;
  --transition-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* Sidebar dimensions */
  --sidebar-width: 240px;
  --sidebar-collapsed-width: 60px;

  /* Light theme tokens */
  --bg-primary: #F2F2F7;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #E5E5EA;
  --bg-nav: rgba(242, 242, 247, 0.82);
  --bg-sidebar: rgba(242, 242, 247, 0.85);
  --text-primary: #1C1C1E;
  --text-secondary: #6C6C70;
  --text-tertiary: #AEAEB2;
  --separator: rgba(60, 60, 67, 0.12);
  --card-bg: #FFFFFF;
  --card-shadow: 0 1px 4px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
  --modal-bg: rgba(255,255,255,0.92);
  --input-bg: rgba(118, 118, 128, 0.12);
  --input-bg-focus: rgba(118, 118, 128, 0.18);
  --danger: #FF3B30;
  --success: #34C759;
  --warning: #FF9500;
  --overlay-bg: rgba(0,0,0,0.3);
  --tab-active-bg: rgba(0, 122, 255, 0.12);
  --tab-hover-bg: rgba(0, 0, 0, 0.05);
  --network-grid-minor: rgba(60, 60, 67, 0.055);
  --network-grid-major: rgba(0, 122, 255, 0.09);
}

[data-theme="dark"] {
  --bg-primary: #000000;
  --bg-secondary: #1C1C1E;
  --bg-tertiary: #2C2C2E;
  --bg-nav: rgba(28, 28, 30, 0.82);
  --bg-sidebar: rgba(28, 28, 30, 0.88);
  --text-primary: #FFFFFF;
  --text-secondary: #EBEBF5CC;
  --text-tertiary: #EBEBF560;
  --separator: rgba(84, 84, 88, 0.6);
  --card-bg: #1C1C1E;
  --card-shadow: 0 1px 4px rgba(0,0,0,0.4), 0 4px 16px rgba(0,0,0,0.25);
  --modal-bg: rgba(28,28,30,0.94);
  --input-bg: rgba(118, 118, 128, 0.24);
  --input-bg-focus: rgba(118, 118, 128, 0.32);
  --overlay-bg: rgba(0,0,0,0.6);
  --tab-active-bg: rgba(10, 132, 255, 0.18);
  --tab-hover-bg: rgba(255, 255, 255, 0.06);
  --network-grid-minor: rgba(255, 255, 255, 0.055);
  --network-grid-major: rgba(10, 132, 255, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-primary: #000000;
    --bg-secondary: #1C1C1E;
    --bg-tertiary: #2C2C2E;
    --bg-nav: rgba(28, 28, 30, 0.82);
    --bg-sidebar: rgba(28, 28, 30, 0.88);
    --text-primary: #FFFFFF;
    --text-secondary: #EBEBF5CC;
    --text-tertiary: #EBEBF560;
    --separator: rgba(84, 84, 88, 0.6);
    --card-bg: #1C1C1E;
    --card-shadow: 0 1px 4px rgba(0,0,0,0.4), 0 4px 16px rgba(0,0,0,0.25);
    --modal-bg: rgba(28,28,30,0.94);
    --input-bg: rgba(118, 118, 128, 0.24);
    --input-bg-focus: rgba(118, 118, 128, 0.32);
    --overlay-bg: rgba(0,0,0,0.6);
    --tab-active-bg: rgba(10, 132, 255, 0.18);
    --tab-hover-bg: rgba(255, 255, 255, 0.06);
    --network-grid-minor: rgba(255, 255, 255, 0.055);
    --network-grid-major: rgba(10, 132, 255, 0.12);
  }
}

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, "SF Pro Text", "SF Pro Display", system-ui, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100dvh;
  line-height: 1.5;
  transition: background 0.25s var(--transition-ease), color 0.25s var(--transition-ease);
}

/* ── Main View Layout ── */
#main-view {
  display: flex;
  min-height: 100dvh;
}

/* ── Sidebar ── */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  backdrop-filter: saturate(180%) blur(24px);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  border-right: 1px solid var(--separator);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: width 0.3s var(--transition-ease), transform 0.3s var(--transition-ease);
  overflow: hidden;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar-resizer {
  position: absolute;
  z-index: 3;
  top: 0;
  right: 0;
  bottom: 0;
  width: 8px;
  cursor: col-resize;
  touch-action: none;
  outline: none;
}

.sidebar-resizer::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.16s var(--transition-ease);
}

.sidebar-resizer:hover::after,
.sidebar-resizer:focus-visible::after,
body.sidebar-resizing .sidebar-resizer::after {
  opacity: 0.75;
}

.sidebar.collapsed .sidebar-resizer {
  display: none;
}

body.sidebar-resizing {
  cursor: col-resize !important;
  user-select: none;
}

body.sidebar-resizing .sidebar,
body.sidebar-resizing .content-wrapper {
  transition: none;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 14px 12px;
  min-height: 56px;
  flex-shrink: 0;
}

.sidebar-toggle-btn {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: background 0.18s var(--transition-ease), color 0.18s var(--transition-ease);
}

.sidebar-toggle-btn:hover {
  background: var(--tab-hover-bg);
  color: var(--text-primary);
}

.sidebar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  white-space: nowrap;
  overflow: hidden;
  opacity: 1;
  transition: opacity 0.2s var(--transition-ease);
}

.sidebar.collapsed .sidebar-title {
  opacity: 0;
  pointer-events: none;
}

/* Nav items */
.sidebar-nav {
  flex: 1;
  padding: 6px 8px;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-tab-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 10px;
  height: 44px;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  width: 100%;
  text-align: left;
  transition: background 0.18s var(--transition-ease), color 0.18s var(--transition-ease);
  white-space: nowrap;
  overflow: hidden;
  margin-bottom: 2px;
  position: relative;
}

.sidebar-tab-item:hover {
  background: var(--tab-hover-bg);
  color: var(--text-primary);
}

.sidebar-tab-item.active {
  background: var(--tab-active-bg);
  color: var(--accent);
}

/* 拖拽排序视觉反馈 */
.sidebar-tab-item.dragging { opacity: 0.4; }
.sidebar-tab-item.drag-over {
  box-shadow: inset 0 2px 0 var(--accent);
}
/* 双击改名的输入框 */
.tab-rename-input {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 14px;
  padding: 2px 6px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
}

[data-theme="dark"] .sidebar-tab-item.active,
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .sidebar-tab-item.active {
    color: var(--accent-dark);
  }
}

.sidebar-tab-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-tab-icon svg {
  width: 18px;
  height: 18px;
}

.sidebar-tab-label {
  opacity: 1;
  transition: opacity 0.2s var(--transition-ease);
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar.collapsed .sidebar-tab-label {
  opacity: 0;
  width: 0;
  flex: 0 0 0;
  pointer-events: none;
}

/* Tooltip for collapsed state */
.sidebar.collapsed .sidebar-tab-item {
  justify-content: center;
  padding: 0;
  gap: 0;
}

.sidebar.collapsed .sidebar-tab-item::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(var(--sidebar-collapsed-width) + 8px);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
  border: 1px solid var(--separator);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s var(--transition-ease);
  z-index: 200;
}

.sidebar.collapsed .sidebar-tab-item:hover::after {
  opacity: 1;
}

/* Sidebar footer */
.sidebar-footer {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 8px;
  border-top: 1px solid var(--separator);
  flex-shrink: 0;
}

.sidebar-icon-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 10px;
  border-radius: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  transition: background 0.18s var(--transition-ease), color 0.18s var(--transition-ease);
  white-space: nowrap;
  overflow: hidden;
  min-width: 36px;
  min-height: 44px;
  justify-content: center;
}

.sidebar-icon-btn:hover {
  background: var(--tab-hover-bg);
  color: var(--text-primary);
}

.sidebar-footer-label {
  opacity: 1;
  transition: opacity 0.2s var(--transition-ease);
}

.sidebar.collapsed .sidebar-footer-label {
  opacity: 0;
  width: 0;
  overflow: hidden;
}

.sidebar.collapsed .sidebar-footer {
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}

.sidebar.collapsed .sidebar-icon-btn {
  padding: 0;
  width: 36px;
}

/* ── Content wrapper ── */
.content-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  margin-left: var(--sidebar-width);
  transition: margin-left 0.3s var(--transition-ease);
}

.content-wrapper.sidebar-collapsed {
  margin-left: var(--sidebar-collapsed-width);
}

/* ── Content header ── */
.content-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-nav);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--separator);
  padding: 0 20px;
  height: 52px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.content-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  flex-shrink: 0;
}

.content-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

/* Mobile menu button — hidden on desktop */
.mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: background 0.18s var(--transition-ease);
}

.mobile-menu-btn:hover { background: var(--tab-hover-bg); }

/* ── Tab content area ── */
.tab-content {
  flex: 1;
  padding: 28px 24px 48px;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

/* ── Download center tab ── */
.download-tab-content {
  display: grid;
  min-height: calc(100vh - 60px);
}

.download-center {
  min-width: 0;
  min-height: 420px;
  display: grid;
  place-items: center;
}

.download-center-empty {
  display: grid;
  justify-items: center;
  gap: 14px;
  color: var(--text-tertiary);
  text-align: center;
}

.download-center-empty-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  color: var(--text-secondary);
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
}

.download-center-empty-icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.download-center-empty strong {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
}

/* ── Nav tab: search + controls toolbar ── */
.nav-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.nav-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1 1 240px;
  min-width: 150px;
  max-width: 320px;
}

.nav-search-icon {
  position: absolute;
  left: 11px;
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--text-tertiary);
  stroke-width: 2;
  stroke-linecap: round;
  pointer-events: none;
  transition: stroke 0.16s var(--transition-ease);
}

.nav-search {
  width: 100%;
  height: 36px;
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
  padding: 0 12px 0 34px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), box-shadow 0.16s var(--transition-ease);
}

.nav-search:hover { background: var(--input-bg-focus); }
.nav-search:focus {
  background: var(--bg-secondary);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.13);
}
.nav-search-wrap:focus-within .nav-search-icon { stroke: var(--accent); }
.nav-search::placeholder { color: var(--text-tertiary); }

.nav-add-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  background: rgba(0, 122, 255, 0.1);
  border: 1px solid rgba(0, 122, 255, 0.16);
  border-radius: 8px;
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), border-color 0.16s var(--transition-ease), transform 0.12s var(--transition-ease);
}

.nav-add-btn svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
}

.nav-add-btn:hover {
  background: rgba(0, 122, 255, 0.16);
  border-color: rgba(0, 122, 255, 0.25);
}

.nav-add-btn:active { transform: scale(0.92); }
.nav-add-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Icon buttons in header */
.header-btn {
  width: 32px;
  height: 32px;
  min-height: 44px;
  border-radius: 50%;
  background: var(--input-bg);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--accent);
  flex-shrink: 0;
  transition: all 0.18s var(--transition-ease);
}

.header-btn:hover { background: var(--input-bg-focus); transform: scale(1.08); }
.header-btn:active { transform: scale(0.94); }

/* ── Groups ── */
.nav-layout {
  position: relative;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  align-items: start;
  gap: 34px;
}

.nav-category-panel {
  position: sticky;
  top: 24px;
  min-width: 0;
  padding: 14px 10px;
  background: color-mix(in srgb, var(--card-bg) 76%, transparent);
  border: 1px solid var(--separator);
  border-radius: 14px;
  box-shadow: var(--card-shadow);
}

.nav-category-title {
  min-height: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 2px 10px 10px;
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: .06em;
}

.nav-category-add {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  padding: 0;
  color: var(--text-tertiary);
  background: var(--input-bg);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  transition: color .16s var(--transition-ease), background .16s var(--transition-ease), transform .16s var(--transition-ease);
}
.nav-category-add:hover { color: var(--accent); background: var(--tab-active-bg); }
.nav-category-add:active { transform: scale(.94); }
.nav-category-add:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.nav-category-add svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }

.nav-category-menu {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-category-row,
.search-category-row {
  position: relative;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-category-row .nav-category-item,
.search-category-row .search-category-choice { min-width: 0; flex: 1; }

.nav-category-row:not([data-category="all"]) { touch-action: none; }
.nav-category-row.nav-category-drag-placeholder {
  min-height: 38px;
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  border-radius: 9px;
  box-shadow: inset 0 2px 0 color-mix(in srgb, var(--accent) 78%, transparent);
}
.nav-category-row.nav-category-drag-placeholder > * { visibility: hidden; }
.nav-category-row.nav-category-drag-ghost {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 520;
  margin: 0;
  padding: 0;
  pointer-events: none;
  opacity: .96;
  background: var(--card-bg);
  border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--separator));
  border-radius: 9px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, .2);
  will-change: transform;
}
.nav-category-row.nav-category-drag-ghost .category-item-actions { display: none; }
body.nav-category-dragging,
body.nav-category-dragging * { cursor: grabbing !important; user-select: none !important; }
body.nav-category-dragging .nav-category-row { transition: none; }

.category-item-actions {
  max-width: 0;
  display: flex;
  align-items: center;
  gap: 1px;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: max-width .16s var(--transition-ease), opacity .16s var(--transition-ease);
}
.nav-category-row.category-editing .category-item-actions,
.search-category-row.category-editing .category-item-actions {
  max-width: 84px;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.category-item-action {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  padding: 0;
  color: var(--text-tertiary);
  background: transparent;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
}
.category-item-action:hover { color: var(--accent); background: var(--tab-hover-bg); }
.category-item-action:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.category-item-delete:hover { color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, transparent); }
.category-item-action:disabled { opacity: .28; cursor: not-allowed; }
.category-item-action:disabled:hover { color: var(--text-tertiary); background: transparent; }

.nav-category-item {
  width: 100%;
  min-height: 38px;
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
  padding: 0 10px;
  padding-left: calc(10px + var(--category-depth, 0) * 16px);
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  border-radius: 9px;
  font: inherit;
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  transition: color .16s var(--transition-ease), background .16s var(--transition-ease);
}

.nav-category-item:hover { color: var(--text-primary); background: var(--tab-hover-bg); }
.nav-category-item.active { color: var(--accent); background: var(--tab-active-bg); font-weight: 600; }
.nav-category-child-row .nav-category-item {
  min-height: 32px;
  font-size: 12px;
}
.nav-category-child-row .nav-category-dot {
  width: 4px;
  height: 4px;
  opacity: .72;
}
.nav-category-child-row .nav-category-count { transform: scale(.92); transform-origin: right center; }
.nav-category-item.nav-category-pressing { background: var(--tab-hover-bg); transform: scale(.985); }
.nav-category-item:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.nav-category-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-tertiary);
}

.nav-category-item.active .nav-category-dot { background: currentColor; box-shadow: 0 0 0 3px rgba(0, 122, 255, .12); }
.nav-category-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-category-count {
  min-width: 22px;
  padding: 2px 6px;
  color: var(--text-tertiary);
  background: var(--input-bg);
  border-radius: 999px;
  font-size: 11px;
  line-height: 16px;
  text-align: center;
}

.nav-category-item.active .nav-category-count { color: currentColor; background: var(--bg-secondary); }
#sites-container { min-width: 0; }

/* 父分类右侧的展开箭头：仅手机端子分类抽屉模式显示（桌面端子分类平铺，无需箭头） */
.nav-category-chevron { display: none; }
.nav-category-chevron svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }

/* 子分类抽屉（挂 body 顶层）：桌面端完全隐藏，仅手机端 @media 里启用 */
.nav-subcat-drawer,
.nav-subcat-backdrop { display: none; }

.nav-ungrouped-section {
  display: none;
  min-height: 58px;
  margin: 0 0 26px;
  padding: 10px;
  border: 1px dashed transparent;
  border-radius: var(--radius-card);
}
.nav-ungrouped-section.has-sites,
body.nav-card-dragging .nav-ungrouped-section { display: block; }
.nav-ungrouped-section.has-sites { padding: 0; border: 0; }
body.nav-card-dragging .nav-ungrouped-section {
  padding: 10px;
  border-color: color-mix(in srgb, var(--accent) 38%, var(--separator));
  background: color-mix(in srgb, var(--accent) 3%, transparent);
}
.nav-ungrouped-drop-hint {
  display: none;
  min-height: 36px;
  place-items: center;
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 600;
  pointer-events: none;
}
body.nav-card-dragging .nav-ungrouped-drop-hint { display: grid; }
.nav-ungrouped-section.has-sites .nav-ungrouped-drop-hint { min-height: 30px; }
.nav-ungrouped-grid:empty { display: none; }
.nav-ungrouped-section.nav-drop-target {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 9%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 10%, transparent);
}
.nav-ungrouped-section.nav-drop-target .nav-ungrouped-drop-hint { color: var(--accent); }

.group-section { margin-bottom: 20px; }

.group-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
  text-transform: uppercase;
  margin-bottom: 7px;
  padding-left: 4px;
}

.group-label-text { min-width: 0; }

.group-child-add {
  width: 22px;
  height: 22px;
  border: 0;
  border-radius: 7px;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: .78;
  transform: translateY(0);
  transition: opacity .16s var(--transition-ease), transform .16s var(--transition-ease), background .16s var(--transition-ease);
  -webkit-tap-highlight-color: transparent;
}
.group-label:hover .group-child-add,
.group-child-add:focus-visible {
  opacity: 1;
}
.group-child-add:hover { background: color-mix(in srgb, var(--accent) 16%, transparent); }
.group-child-add svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
}

.sites-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, 76px);
  gap: 7px;
  justify-content: start;
}

/* ── Site Card ── */
.site-card {
  position: relative;
  background: var(--card-bg);
  border-radius: 9px;
  padding: 8px 5px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--card-shadow);
  transition: transform 0.25s var(--transition-spring), box-shadow 0.25s var(--transition-ease), opacity 0.18s var(--transition-ease);
  -webkit-tap-highlight-color: transparent;
  min-height: 72px;
  border: 1px solid var(--separator);
}

.site-card:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1), 0 12px 40px rgba(0,0,0,0.08);
}

.site-card-main {
  width: 100%;
  min-width: 0;
  flex: 1;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 4px;
  cursor: inherit;
  appearance: none;
}

.site-card:has(.site-card-main:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.site-card:active {
  transform: translateY(0) scale(0.97);
  transition-duration: 0.1s;
}

.site-card.disabled {
  opacity: 0.38;
  pointer-events: none;
  cursor: default;
}

.console-shortcut-card {
  width: 100%;
  font: inherit;
}

.console-shortcut-icon svg {
  width: 30px;
  height: 30px;
  color: var(--accent);
}
.nav-card-actions {
  position: absolute;
  top: -9px;
  right: -5px;
  display: flex;
  gap: 3px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(3px) scale(0.92);
  transition: opacity 0.16s var(--transition-ease), transform 0.16s var(--transition-ease);
  z-index: 4;
}
body.nav-cards-editing .nav-card-actions {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}
.nav-card-action {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 0;
  background: var(--accent);
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  box-shadow: 0 4px 10px rgba(0,0,0,0.14);
}
.nav-card-edit { background: var(--accent); }
.nav-card-delete,
.console-card-delete { background: var(--danger); }
.nav-card-action:hover { transform: scale(1.1); }
body.nav-cards-editing .site-card-main { cursor: default; }
.site-card.nav-card-interactive {
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.site-card.disabled.nav-card-interactive {
  pointer-events: auto;
  cursor: pointer;
}
.site-card.nav-card-pressing {
  transform: translateY(0) scale(0.97);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition-duration: 0.1s;
}
.site-card.nav-drag-placeholder {
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  border: 1px dashed color-mix(in srgb, var(--accent) 58%, var(--separator));
  box-shadow: none;
  transform: none !important;
}
.site-card.nav-drag-placeholder > * { visibility: hidden; }
.site-card.nav-drop-before::before {
  content: "";
  position: absolute;
  top: 7px;
  bottom: 7px;
  left: -5px;
  width: 3px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 14%, transparent);
  pointer-events: none;
}
.sites-grid.nav-drop-at-end {
  box-shadow: inset -3px 0 0 color-mix(in srgb, var(--accent) 72%, transparent);
}
.site-card.nav-drag-ghost {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 500;
  margin: 0;
  pointer-events: none;
  opacity: 0.94;
  transform: translate3d(0, 0, 0) scale(1.04) rotate(0.5deg);
  will-change: transform;
  contain: layout paint;
  box-shadow: 0 16px 36px rgba(0,0,0,0.2);
  transition: none;
}
body.nav-card-dragging,
body.nav-card-dragging * { cursor: grabbing !important; }
body.nav-card-dragging .site-card { transition: none; }
.group-section.nav-drop-target .sites-grid {
  outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 7px;
  border-radius: var(--radius-card);
  background: color-mix(in srgb, var(--accent) 4%, transparent);
}
.group-section.nav-empty-drop-section { display: none; }
body.nav-card-dragging .group-section.nav-empty-drop-section {
  display: block;
}
.nav-empty-drop-grid {
  min-height: 64px;
  border: 1px dashed color-mix(in srgb, var(--accent) 42%, var(--separator));
  border-radius: var(--radius-card);
  background: color-mix(in srgb, var(--accent) 3%, transparent);
}
.nav-category-item.nav-drop-target {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 13%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 34%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  .site-card { transition: none; }
  .site-card:hover { transform: none; }
  .site-card.nav-card-pressing { transform: scale(0.97); }
  .sidebar, .content-wrapper, .sidebar-tab-item { transition: none; }
  .sidebar-title, .sidebar-tab-label, .sidebar-footer-label { transition: none; }
}

.site-icon-wrap {
  position: relative;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  overflow: hidden;
  flex-shrink: 0;
}

.site-icon-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: auto;
  opacity: 0;
  transition: opacity 120ms ease-out;
}

.site-icon-wrap img.loaded { opacity: 1; }

.site-icon-letter {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.site-icon-letter.pending { opacity: 0; }

.site-name {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: center;
  line-height: 1.3;
  max-width: 100%;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.site-icon-wrap > span[style] { font-size: 18px !important; }
.console-shortcut-icon svg { width: 22px; height: 22px; }

/* Delete button on custom cards */
.card-delete-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--danger);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.18s var(--transition-ease), transform 0.18s var(--transition-spring);
  color: white;
  font-size: 13px;
  line-height: 1;
  z-index: 2;
}

.site-card:hover .card-delete-btn { opacity: 1; }
.card-delete-btn:hover { transform: scale(1.15); }

/* 私密卡片即使未填网址也必须能编辑/删除。 */
.private-site-card.disabled {
  pointer-events: auto;
  opacity: 0.65;
  cursor: default;
}

.private-page {
  width: min(100%, 1180px);
  margin: 30px auto 0;
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.private-categories {
  padding: 14px 10px;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
  box-shadow: var(--card-shadow);
}

.private-categories-title {
  padding: 0 10px 10px;
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 600;
}

.private-category-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.private-category-choice {
  width: 100%;
  min-width: 0;
  height: 36px;
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  padding: 0 8px;
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  text-align: left;
}

.private-category-choice span:nth-child(2) {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.private-category-choice:hover { background: var(--input-bg); color: var(--text-primary); }
.private-category-choice.active {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, var(--card-bg));
  font-weight: 650;
}

.private-category-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-tertiary);
}
.private-category-choice.active .private-category-dot { background: var(--accent); }

.private-category-count {
  min-width: 24px;
  padding: 2px 7px;
  color: var(--text-tertiary);
  background: var(--input-bg);
  border-radius: 999px;
  font-size: 11px;
  text-align: center;
}

.private-sites-content {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.private-group-section .sites-grid { justify-content: flex-start; }
.private-group-title {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.2;
  font-weight: 650;
}

.private-card-action {
  opacity: 0;
}

.private-card-edit {
  position: absolute;
  top: 6px;
  right: 34px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition: opacity 0.18s var(--transition-ease), transform 0.18s var(--transition-spring);
}

.private-card-edit svg {
  width: 12px;
  height: 12px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.private-site-card:hover .private-card-action,
.private-card-action:focus-visible { opacity: 1; }
.private-card-edit:hover { transform: scale(1.15); }

@media (hover: none) {
  .private-site-card .private-card-action { opacity: 1; }
}

/* ── Empty/No-results ── */
.empty-state {
  text-align: center;
  padding: 64px 20px;
  color: var(--text-tertiary);
  font-size: 15px;
}

/* ── Privacy PIN gate ── */
.pin-gate {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  text-align: center;
  min-height: 400px;
}

.pin-gate-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: var(--input-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
}

.pin-gate-icon svg {
  width: 32px;
  height: 32px;
}

.pin-gate-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.4px;
  margin-bottom: 8px;
}

.pin-gate-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 340px;
  line-height: 1.5;
}

.pin-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
  max-width: 280px;
}

.pin-input {
  width: 100%;
  padding: 13px 16px;
  font-size: 17px;
  text-align: center;
  letter-spacing: 4px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s;
}

.pin-input:focus { border-color: var(--accent); }
.pin-input::placeholder { color: var(--text-tertiary); letter-spacing: normal; }

.pin-error {
  font-size: 13px;
  color: #FF3B30;
  min-height: 18px;
}

.pin-btn {
  width: 100%;
  padding: 13px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.pin-btn:hover { background: #0066DD; }
.pin-btn:active { transform: scale(0.98); }

/* ── Modal / Sheet ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s var(--transition-ease);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-sheet {
  background: var(--modal-bg);
  backdrop-filter: saturate(180%) blur(40px);
  -webkit-backdrop-filter: saturate(180%) blur(40px);
  border-radius: var(--radius-modal) var(--radius-modal) 0 0;
  padding: 8px 24px 40px;
  width: 100%;
  max-width: 520px;
  transform: translateY(60px);
  transition: transform 0.36s var(--transition-spring);
  border: 1px solid var(--separator);
  border-bottom: none;
  max-height: 90dvh;
  overflow-y: auto;
}

@media (min-width: 600px) {
  .modal-overlay { align-items: center; }
  .modal-sheet {
    border-radius: var(--radius-modal);
    transform: scale(0.93) translateY(20px);
    border: 1px solid var(--separator);
    max-height: 80dvh;
  }
  .modal-overlay.open .modal-sheet { transform: scale(1) translateY(0); }
}

.modal-overlay.open .modal-sheet { transform: translateY(0); }

.modal-handle {
  width: 36px;
  height: 4px;
  background: var(--text-tertiary);
  border-radius: 2px;
  margin: 8px auto 20px;
  display: none;
}

@media (max-width: 599px) { .modal-handle { display: block; } }

.modal-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.4px;
  margin-bottom: 20px;
}

/* Form */
.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-input, .form-select {
  width: 100%;
  background: var(--input-bg);
  border: none;
  border-radius: 12px;
  padding: 11px 14px;
  font-size: 16px;
  font-family: inherit;
  color: var(--text-primary);
  outline: none;
  transition: background 0.18s var(--transition-ease), box-shadow 0.18s var(--transition-ease);
  appearance: none;
}

.form-input:focus, .form-select:focus {
  background: var(--input-bg-focus);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.2);
}

.form-input::placeholder { color: var(--text-tertiary); }

.form-error {
  min-height: 18px;
  margin-top: 7px;
  color: var(--danger);
  font-size: 12px;
  line-height: 1.5;
}

.category-name-sheet { max-width: 400px; }
.category-name-sheet .modal-title { margin-bottom: 18px; }
.category-name-sheet .form-group { margin-bottom: 4px; }
.category-name-actions { justify-content: flex-end; }
.category-name-actions .btn-primary { width: auto; min-width: 104px; }
.category-name-actions .btn-secondary { min-width: 82px; }

.form-select-wrap { position: relative; }
.form-select-wrap::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 17px;
  width: 7px;
  height: 7px;
  border-right: 2px solid var(--text-tertiary);
  border-bottom: 2px solid var(--text-tertiary);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}
.form-select { min-height: 44px; padding-right: 42px; cursor: pointer; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.btn-primary {
  width: 100%;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 14px;
  padding: 14px 24px;
  font-size: 17px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  margin-top: 8px;
  transition: all 0.2s var(--transition-spring);
  min-height: 50px;
}

.btn-primary:hover { background: #0066DD; transform: scale(1.01); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

.btn-secondary {
  background: var(--input-bg);
  color: var(--text-primary);
  border: none;
  border-radius: 14px;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.18s var(--transition-ease);
}

.btn-secondary:hover { background: var(--input-bg-focus); }

.modal-actions { display: flex; gap: 10px; margin-top: 4px; }
.modal-actions .btn-secondary { flex-shrink: 0; }
.modal-actions .btn-primary { flex: 1; }

/* ── Auth View ── */
#auth-view {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  background: var(--card-bg);
  border-radius: var(--radius-modal);
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--separator);
}

.auth-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.6px;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.auth-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.auth-error {
  background: rgba(255, 59, 48, 0.1);
  border: 1px solid rgba(255, 59, 48, 0.25);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--danger);
  margin-bottom: 14px;
  display: none;
}

.auth-error.visible { display: block; }

/* ── TOTP 验证码输入 + 30 秒滚动倒计时 ── */
.totp-input {
  text-align: center;
  font-size: 28px;
  letter-spacing: 12px;
  font-variant-numeric: tabular-nums;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  padding-left: 12px; /* 抵消字距使整体居中 */
}

.totp-timer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: -4px 0 14px;
  font-size: 13px;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.totp-timer.expiring { color: var(--danger); }

.totp-ring {
  width: 22px;
  height: 22px;
  transform: rotate(-90deg);
  flex-shrink: 0;
}
.totp-ring-bg {
  fill: none;
  stroke: var(--text-tertiary);
  stroke-width: 3;
  opacity: 0.3;
}
.totp-ring-fg {
  fill: none;
  stroke: var(--accent);
  stroke-width: 3;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.25s linear, stroke 0.2s;
}
.totp-timer.expiring .totp-ring-fg { stroke: var(--danger); }
.totp-timer-text b { font-variant-numeric: tabular-nums; }

/* ── Theme toggle icon ── */
#theme-icon {
  fill: currentColor;
  pointer-events: none;
}

/* ── Mobile sidebar backdrop ── */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  z-index: 90;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s var(--transition-ease);
}

.sidebar-backdrop.visible {
  opacity: 1;
  pointer-events: all;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-tertiary); border-radius: 3px; }

/* ── Responsive: mobile ── */
@media (max-width: 767px) {
  .sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width) !important;
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .sidebar-backdrop {
    display: block;
    pointer-events: none;
  }

  .content-wrapper {
    margin-left: 0 !important;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .sidebar-toggle-btn {
    display: none;
  }

  .sidebar-resizer {
    display: none;
  }

  .tab-content {
    padding: 20px 16px 40px;
  }

  /* nav-toolbar 已独占 header 第二行整行 → 搜索框弹性撑开，添加按钮靠右。 */
  .nav-toolbar {
    width: 100%;
    gap: 7px;
  }

  .nav-search-wrap {
    max-width: none;
    flex: 1 1 auto;
    min-width: 130px;
  }
}

@media (max-width: 420px) {
  .content-header:has(.nav-toolbar) {
    height: auto;
    min-height: 52px;
    padding-top: 8px;
    padding-bottom: 8px;
  }
  .content-header:has(.nav-toolbar) .content-title { display: none; }
  .content-actions:has(.nav-toolbar) {
    flex: 1;
    min-width: 0;
  }
}

/* dark mode: override accent color for active tab */
[data-theme="dark"] .sidebar-tab-item.active {
  color: var(--accent-dark);
}

/* ── AI Console ── */

/* Top bar action selects */
.ai-actions-bar {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-select-wrap {
  display: flex;
  align-items: center;
}

.ai-select {
  background: var(--input-bg);
  border: none;
  border-radius: 9px;
  padding: 5px 10px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-primary);
  outline: none;
  cursor: pointer;
  max-width: 200px;
  transition: background 0.18s var(--transition-ease);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 24px;
}

.ai-select:focus {
  background-color: var(--input-bg-focus);
  box-shadow: 0 0 0 2px rgba(0, 122, 255, 0.25);
}

.ai-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Sessions sidebar */
.ai-sessions-sidebar {
  width: 220px;
  min-width: 180px;
  flex-shrink: 0;
  min-height: 0;
  background: var(--bg-sidebar);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-right: 1px solid var(--separator);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* 会话面板 / 对话区之间的可拖拽分隔条 */
.ai-resizer {
  flex: 0 0 auto;
  width: 5px;
  margin-left: -3px;      /* 叠在 sidebar 的 border-right 上，视觉上仍是一条细线 */
  margin-right: -2px;
  cursor: col-resize;
  background: transparent;
  z-index: 5;
  transition: background 0.15s var(--transition-ease);
}
.ai-resizer:hover,
.ai-resizer:active {
  background: var(--accent);
}
@media (max-width: 640px) {
  .ai-resizer { display: none; }  /* 移动端 sidebar 为抽屉，不需要拖 */
}

.ai-sessions-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 14px 10px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--separator);
}

.ai-sessions-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.ai-new-btn {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--input-bg);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  transition: background 0.18s var(--transition-ease), transform 0.18s var(--transition-spring);
}

.ai-new-btn:hover {
  background: var(--input-bg-focus);
  transform: scale(1.1);
}

.ai-sessions-list {
  flex: 1;
  overflow-y: auto;
  padding: 6px 8px;
}

.ai-sessions-empty {
  padding: 16px 8px;
  font-size: 13px;
  color: var(--text-tertiary);
  text-align: center;
}

.ai-session-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  margin-bottom: 2px;
  transition: background 0.15s var(--transition-ease);
  min-height: 36px;
}

.ai-session-item:hover {
  background: var(--tab-hover-bg);
}

.ai-session-item.active {
  background: var(--tab-active-bg);
}

.ai-session-name {
  flex: 1;
  font-size: 13px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.4;
}

.ai-session-item.active .ai-session-name {
  color: var(--accent);
  font-weight: 500;
}

[data-theme="dark"] .ai-session-item.active .ai-session-name {
  color: var(--accent-dark);
}

/* Session action buttons group (rename / pin / delete) */
.ai-session-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.15s var(--transition-ease);
}

.ai-session-item:hover .ai-session-actions {
  opacity: 1;
}

.ai-session-action-btn {
  width: 20px;
  height: 20px;
  border-radius: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}

.ai-session-action-btn:hover {
  background: var(--input-bg-focus);
  color: var(--text-primary);
}

.ai-session-del:hover {
  background: rgba(255, 59, 48, 0.15);
  color: var(--danger);
}

.ai-session-pin.pinned {
  color: var(--accent);
}

/* Pin icon on session item */
.ai-session-pin-icon {
  color: var(--accent);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  margin-right: 2px;
}

[data-theme="dark"] .ai-session-pin-icon { color: var(--accent-dark); }

/* Unread badge dot on session item */
.ai-session-badge {
  display: inline-block;
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--danger);
  margin-left: 2px;
  align-self: center;
}

/* Chat main */
.ai-chat-main {
  flex: 1;
  min-height: 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-primary);
}

.ai-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px 20px 8px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Empty state */
.ai-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  padding: 60px 24px;
  text-align: center;
  min-height: 300px;
}

.ai-empty-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--input-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--text-tertiary);
}

.ai-empty-icon svg {
  width: 28px;
  height: 28px;
}

.ai-empty-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  margin-bottom: 6px;
}

.ai-empty-desc {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 280px;
  line-height: 1.5;
}

.ai-session-hint {
  text-align: center;
  padding: 32px 20px;
  font-size: 14px;
  color: var(--text-tertiary);
}

/* Message bubbles */
.ai-msg-wrap {
  display: flex;
  width: 100%;
}

.ai-msg-user {
  justify-content: flex-end;
}

.ai-msg-assistant, .ai-msg-loading {
  justify-content: flex-start;
}

.ai-msg-bubble {
  max-width: 72%;
  border-radius: 18px;
  padding: 11px 16px;
  font-size: 15px;
  line-height: 1.55;
  word-break: break-word;
}

.ai-msg-bubble-user {
  background: var(--accent);
  color: white;
  border-bottom-right-radius: 4px;
}

.ai-msg-bubble-user .ai-msg-user-text a {
  color: white;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.ai-msg-bubble-user .ai-msg-user-text code {
  color: white;
  background: rgba(0, 0, 0, 0.2);
}
.ai-msg-bubble-user .ai-msg-user-text pre {
  color: white;
  background: rgba(0, 0, 0, 0.22);
}
.ai-msg-bubble-user .ai-msg-user-text blockquote {
  color: rgba(255, 255, 255, 0.88);
  border-left-color: rgba(255, 255, 255, 0.55);
}
.ai-msg-bubble-user .ai-msg-user-text th,
.ai-msg-bubble-user .ai-msg-user-text td {
  border-color: rgba(255, 255, 255, 0.42);
}
.ai-msg-bubble-user .ai-msg-user-text th {
  background: rgba(0, 0, 0, 0.16);
}
.ai-msg-bubble-user .ai-msg-user-text hr {
  border-top-color: rgba(255, 255, 255, 0.5);
}

[data-theme="dark"] .ai-msg-bubble-user {
  background: var(--accent-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ai-msg-bubble-user {
    background: var(--accent-dark);
  }
}

/* 助手消息：平铺文本流（去气泡背景/边框），对齐 opencode TUI 风格 */
.ai-msg-assistant .ai-msg-bubble {
  max-width: 100%;
  width: 100%;
}
.ai-msg-bubble-assistant {
  background: transparent;
  color: var(--text-primary);
  border: none;
  border-radius: 0;
  padding: 2px 0;
  box-shadow: none;
  font-size: 15px;
  line-height: 1.6;
}

/* 助手消息底部操作行（复制 / 时间） */
.ai-msg-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  opacity: 0;
  transition: opacity 0.15s var(--transition-ease);
}
.ai-msg-assistant:hover .ai-msg-actions { opacity: 1; }
.ai-msg-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 4px;
  font-size: 12px;
  color: var(--text-tertiary);
  background: none;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.15s, background 0.15s;
}
.ai-msg-action-btn:hover { color: var(--text-secondary); background: var(--input-bg); }
.ai-msg-action-btn svg { width: 13px; height: 13px; }
.ai-msg-time { font-size: 12px; color: var(--text-tertiary); }

/* 工具调用：折叠单行摘要（Read xx.js  +7 -2  ›） */
.ai-tool-line {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: default;
}
.ai-tool-line .ai-tool-verb { color: var(--text-tertiary); }
.ai-tool-line .ai-tool-target {
  font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
  color: var(--text-primary);
}
.ai-tool-diff-add { color: var(--success, #2ea043); font-variant-numeric: tabular-nums; }
.ai-tool-diff-del { color: var(--danger, #cf222e); font-variant-numeric: tabular-nums; }
.ai-tool-caret {
  color: var(--text-tertiary);
  transition: transform 0.15s var(--transition-ease);
}
.ai-tool-line.open .ai-tool-caret { transform: rotate(90deg); }
.ai-tool-detail {
  display: none;
  margin: 2px 0 6px;
  padding: 8px 12px;
  background: var(--input-bg);
  border-radius: 8px;
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 12.5px;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}
.ai-tool-detail.open { display: block; }

/* 顶部告警卡（琥珀色圆角，仿 opencode 通知条） */
.ai-alert-card {
  margin: 0 0 14px;
  padding: 16px 18px;
  background: #fbead0;
  border-radius: 14px;
  color: #7a5a12;
  position: relative;
}
[data-theme="dark"] .ai-alert-card { background: #4a3a15; color: #f0d9a8; }
.ai-alert-title {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 700;
}
.ai-alert-body { margin-top: 6px; font-size: 13.5px; line-height: 1.5; }
.ai-alert-actions { display: flex; gap: 10px; margin-top: 12px; }
.ai-alert-btn {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #7a5a12;
  background: rgba(0,0,0,0.06);
  border: none;
  border-radius: 9px;
  cursor: pointer;
}
[data-theme="dark"] .ai-alert-btn { color: #f0d9a8; background: rgba(255,255,255,0.08); }
.ai-alert-btn:hover { background: rgba(0,0,0,0.12); }
.ai-alert-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  opacity: 0.6;
  font-size: 18px;
  line-height: 1;
}
.ai-alert-close:hover { opacity: 1; }

.ai-msg-bubble-loading {
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-bottom-left-radius: 4px;
  padding: 14px 18px;
}

/* 失败气泡 + 重试按钮 */
.ai-msg-bubble-failed {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.ai-msg-error {
  color: var(--danger);
  font-size: 14px;
  line-height: 1.4;
}

.ai-msg-stalled {
  margin-top: 8px;
  color: var(--text-tertiary);
  font-size: 12px;
  font-style: italic;
  line-height: 1.4;
}

.ai-retry-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.18s var(--transition-ease), transform 0.12s var(--transition-spring);
}

.ai-retry-btn:hover { background: var(--input-bg-focus); }
.ai-retry-btn:active { transform: scale(0.96); }
.ai-retry-btn svg { flex-shrink: 0; }

/* Loading dots animation */
.ai-loading-dots {
  display: flex;
  gap: 4px;
  align-items: center;
}

.ai-loading-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-tertiary);
  animation: ai-dot-bounce 1.2s ease-in-out infinite;
}

.ai-loading-dots span:nth-child(1) { animation-delay: 0s; }
.ai-loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.ai-loading-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes ai-dot-bounce {
  0%, 80%, 100% { transform: scale(0.7); opacity: 0.5; }
  40% { transform: scale(1); opacity: 1; }
}

/* 下拉刷新：消息区底部「正在对齐」loading（不打扰输入框） */
.ai-pull-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 0 4px;
  color: var(--text-tertiary);
  font-size: 13px;
}
.ai-pull-loading-text { color: var(--text-tertiary); }

/* Assistant message content parts */
.ai-msg-text {
  /* Markdown rendered content */
}

.ai-msg-text p { margin: 0 0 8px; }
.ai-msg-text p:last-child { margin-bottom: 0; }
.ai-msg-text h1, .ai-msg-text h2, .ai-msg-text h3 {
  font-weight: 600;
  letter-spacing: -0.2px;
  margin: 12px 0 6px;
  line-height: 1.3;
}
.ai-msg-text h1 { font-size: 18px; }
.ai-msg-text h2 { font-size: 16px; }
.ai-msg-text h3 { font-size: 14px; }
.ai-msg-text ul, .ai-msg-text ol {
  margin: 6px 0 6px 18px;
  padding: 0;
}
.ai-msg-text li { margin-bottom: 3px; }
.ai-msg-text code {
  background: var(--bg-tertiary);
  border-radius: 5px;
  padding: 1px 5px;
  font-size: 13px;
  font-family: "SF Mono", "Menlo", "Monaco", monospace;
}
.ai-msg-text pre {
  background: var(--bg-tertiary);
  border-radius: 10px;
  padding: 12px 14px;
  overflow-x: auto;
  margin: 8px 0;
}
.ai-msg-text pre code {
  background: transparent;
  padding: 0;
  font-size: 13px;
  border-radius: 0;
}
.ai-msg-text blockquote {
  border-left: 3px solid var(--separator);
  margin: 8px 0;
  padding: 4px 12px;
  color: var(--text-secondary);
}
.ai-msg-text a {
  color: var(--accent);
  text-decoration: none;
}
.ai-msg-text a:hover { text-decoration: underline; }
.ai-msg-text table { border-collapse: collapse; margin: 8px 0; font-size: 13px; }
.ai-msg-text th, .ai-msg-text td {
  border: 1px solid var(--separator);
  padding: 5px 10px;
}
.ai-msg-text th { background: var(--bg-tertiary); font-weight: 600; }
.ai-msg-text hr { border: none; border-top: 1px solid var(--separator); margin: 10px 0; }

/* Reasoning block (legacy, kept for compat) */
.ai-msg-reasoning {
  background: var(--bg-tertiary);
  border-left: 3px solid var(--text-tertiary);
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

.ai-reasoning-label {
  font-weight: 600;
  color: var(--text-tertiary);
  margin-right: 4px;
}

/* ── Thinking block (collapsible, DeepSeek-style) ── */
.ai-thinking-block {
  border-radius: 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--separator);
  margin-bottom: 8px;
  overflow: hidden;
  transition: background 0.18s var(--transition-ease);
}

.ai-thinking-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background 0.15s var(--transition-ease);
}

.ai-thinking-header:hover {
  background: rgba(0,0,0,0.04);
}

[data-theme="dark"] .ai-thinking-header:hover,
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ai-thinking-header:hover {
    background: rgba(255,255,255,0.05);
  }
}

.ai-thinking-arrow {
  font-size: 11px;
  color: var(--text-tertiary);
  transition: transform 0.2s var(--transition-ease);
  line-height: 1;
  flex-shrink: 0;
}

/* open state: rotate arrow */
.ai-thinking-block.ai-thinking-open > .ai-thinking-header .ai-thinking-arrow {
  transform: rotate(90deg);
}

.ai-thinking-label {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Thinking body: collapsed by default, open when .ai-thinking-open */
.ai-thinking-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--transition-ease);
}

.ai-thinking-block.ai-thinking-open > .ai-thinking-body {
  max-height: 600px;
}

.ai-thinking-text {
  margin: 0;
  padding: 8px 14px 12px;
  font-size: 12px;
  font-family: -apple-system, "SF Pro Text", system-ui, sans-serif;
  color: var(--text-secondary);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  border-top: 1px solid var(--separator);
}

/* Active (streaming) thinking block pulse */
.ai-thinking-block.ai-thinking-active {
  background: var(--bg-tertiary);
}

/* Thinking dots animation (shown in header while active) */
.ai-thinking-dots {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-left: 2px;
}

.ai-thinking-dots span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-tertiary);
  animation: ai-thinking-pulse 1.2s ease-in-out infinite;
}

.ai-thinking-dots span:nth-child(1) { animation-delay: 0s; }
.ai-thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.ai-thinking-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes ai-thinking-pulse {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
}

/* Tool call strip */
.ai-msg-tool {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-tertiary);
  border-radius: 7px;
  padding: 5px 10px;
  margin-bottom: 4px;
  font-size: 12px;
  color: var(--text-secondary);
}

.ai-msg-usage {
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-tertiary);
  opacity: 0.8;
  cursor: default;
  user-select: none;
}

.ai-tool-icon {
  color: var(--text-tertiary);
  font-size: 11px;
}

.ai-msg-tool code {
  background: var(--separator);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: "SF Mono", "Menlo", monospace;
  font-size: 11px;
}

.ai-tool-state {
  color: var(--text-tertiary);
  font-size: 11px;
}

/* Input area */
.ai-input-area {
  padding: 12px 16px 16px;
  border-top: 1px solid var(--separator);
  background: var(--bg-primary);
  flex-shrink: 0;
  position: relative;
}

/* 斜杠命令菜单（输入 / 时弹出，浮于输入框上方）*/
.ai-slash-menu {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: calc(100% - 8px);
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 14px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.16);
  padding: 6px;
  z-index: 40;
  max-height: 260px;
  overflow-y: auto;
}

.ai-slash-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 9px;
  cursor: pointer;
  transition: background 0.12s var(--transition-ease);
}

.ai-slash-item.active,
.ai-slash-item:hover {
  background: var(--input-bg);
}

.ai-slash-name {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  flex-shrink: 0;
}

.ai-slash-desc {
  font-size: 13px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 轻量 toast 提示 */
.ai-toast {
  position: fixed;
  left: 50%;
  bottom: 90px;
  transform: translateX(-50%) translateY(10px);
  background: rgba(30, 30, 32, 0.92);
  color: #fff;
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 14px;
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.28);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 200;
}

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

/* Image preview strip */
.ai-image-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 0 10px 0;
}

.ai-preview-item {
  position: relative;
  width: 56px;
  height: 56px;
  flex-shrink: 0;
}

.ai-preview-thumb {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--separator);
  display: block;
}

.ai-preview-del {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--danger);
  color: white;
  border: none;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s var(--transition-spring);
}

.ai-preview-del:hover { transform: scale(1.2); }

.ai-input-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 16px;
  padding: 10px 10px 10px 10px;
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.18s var(--transition-ease);
}

.ai-input-wrap:focus-within {
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.18), var(--card-shadow);
}

/* Small icon buttons inside input bar */
.ai-icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: background 0.15s var(--transition-ease), color 0.15s var(--transition-ease);
  align-self: center;
}

.ai-icon-btn:hover:not(:disabled) {
  background: var(--input-bg);
  color: var(--accent);
}

.ai-icon-btn:active:not(:disabled) { transform: scale(0.92); }

.ai-icon-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Mic active (recording) state */
.ai-mic-active {
  background: rgba(255, 59, 48, 0.12) !important;
  color: var(--danger) !important;
  animation: ai-mic-pulse 1.4s ease-in-out infinite;
}

@keyframes ai-mic-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 59, 48, 0.3); }
  50% { box-shadow: 0 0 0 5px rgba(255, 59, 48, 0); }
}

/* Mic loading (STT in progress) */
.ai-mic-loading {
  opacity: 0.6;
  cursor: wait;
}

/* User message images */
.ai-user-images {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 6px;
}

.ai-user-img-thumb {
  width: 80px;
  height: 80px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid rgba(255,255,255,0.25);
  display: block;
}

.ai-textarea {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  font-size: 16px; /* iOS Safari 聚焦时 <16px 会自动放大页面，固定 16px 防放大 */
  font-family: inherit;
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 24px;
  max-height: 160px;
  overflow-y: auto;
}

.ai-textarea::placeholder { color: var(--text-tertiary); }

.ai-send-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
  align-self: center;
  transition: background 0.18s var(--transition-ease), transform 0.18s var(--transition-spring);
}

.ai-send-btn:hover { background: #0066DD; transform: scale(1.08); }
.ai-send-btn:active { transform: scale(0.94); }
.ai-send-btn:disabled { background: var(--text-tertiary); cursor: not-allowed; transform: none; }

.ai-send-btn.ai-stop-btn {
  background: var(--text-primary);
}

.ai-send-btn.ai-stop-btn:hover {
  background: var(--text-primary);
}

.ai-send-btn.ai-stop-btn:disabled {
  background: var(--text-primary);
  opacity: 0.7;
}

.ai-msg-stopped {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  color: var(--text-tertiary);
  font-size: 12px;
}

.ai-msg-stopped-icon {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: currentColor;
}

[data-theme="dark"] .ai-send-btn:not(.ai-stop-btn) { background: var(--accent-dark); }
[data-theme="dark"] .ai-send-btn:not(.ai-stop-btn):hover { background: #409CFF; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ai-send-btn:not(.ai-stop-btn) { background: var(--accent-dark); }
  :root:not([data-theme="light"]) .ai-send-btn:not(.ai-stop-btn):hover { background: #409CFF; }
}

/* Responsive: 窄屏下会话列表改为「从右滑入、贴顶贴底的整屏抽屉」，模拟左上角功能导航抽屉(.sidebar) */
@media (max-width: 640px) {
  .ai-sessions-sidebar {
    position: fixed;
    top: 0;              /* 贴顶：盖住顶栏，与功能导航抽屉一致 */
    right: 0;
    bottom: 0;
    width: 78%;
    max-width: 300px;
    z-index: 110; /* 高于 content-header(50)，与主 sidebar 抽屉(100)同级偏上 */
    transform: translateX(100%);
    transition: transform 0.24s var(--transition-spring);
    box-shadow: -2px 0 16px rgba(0, 0, 0, 0.18);
    background: var(--bg-sidebar);
    /* 顶部避开刘海/状态栏、底部避开横条安全区 */
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .ai-sessions-sidebar.mobile-open {
    transform: translateX(0);
  }
  /* 移动端会话抽屉观感对齐左上角功能导航抽屉：更大的标题、更大更好点的列表项 */
  .ai-sessions-sidebar { width: 78%; }
  .ai-sessions-header { padding: 16px 16px 12px; }
  .ai-sessions-title {
    font-size: 15px;
    font-weight: 700;
    text-transform: none; /* 功能导航标题不是全大写 */
    letter-spacing: 0;
    color: var(--text-primary);
  }
  .ai-new-btn { width: 32px; height: 32px; }
  .ai-sessions-list { padding: 8px 10px; }
  .ai-session-item {
    min-height: 44px;      /* 触摸目标，与功能导航 sidebar-tab-item 一致 */
    padding: 10px 12px;
    border-radius: 8px;
    margin-bottom: 3px;
  }
  .ai-session-name { font-size: 15px; }
  /* 会话抽屉遮罩 */
  .ai-sessions-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 105;
    background: rgba(0, 0, 0, 0.32);
    opacity: 0;
    transition: opacity 0.2s var(--transition-ease);
  }
  .ai-sessions-backdrop.visible {
    display: block;
    opacity: 1;
  }
  .ai-msg-bubble {
    max-width: 90%;
  }
  .ai-select {
    max-width: 110px;
    font-size: 12px;
  }
}

/* 顶部抽屉触发按钮（会话 / 模型设置）：仅窄屏显示（桌面端会话列表常驻、设置面板内联，无需入口） */
.ai-drawer-toggle-btn { display: none; }
@media (max-width: 640px) {
  .ai-drawer-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    height: 30px;
    padding: 0 10px;
    border: 1px solid var(--separator);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    white-space: nowrap;
    flex: 0 0 auto;
  }
  .ai-drawer-toggle-btn svg { width: 16px; height: 16px; }
}

/* ── 模型设置面板：桌面内联，移动端变右侧抽屉 ── */
.ai-settings-panel {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ai-settings-panel-header { display: none; } /* 桌面端不显示抽屉标题栏 */
.ai-select-label { display: none; }          /* 桌面端不显示各下拉的文字标签（省空间） */

@media (max-width: 640px) {
  /* 顶部操作栏：会话按钮靠左、模型按钮靠右，中间面板收进抽屉 */
  .ai-actions-bar { width: 100%; justify-content: space-between; gap: 6px; }

  /* 设置面板 → 从右侧滑入的整屏抽屉（贴顶，与会话/功能导航抽屉一致） */
  .ai-settings-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 82%;
    max-width: 320px;
    z-index: 110;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding: 16px;
    padding-top: calc(16px + env(safe-area-inset-top));
    padding-bottom: calc(16px + env(safe-area-inset-bottom));
    background: var(--bg-secondary);
    box-shadow: -2px 0 16px rgba(0, 0, 0, 0.18);
    transform: translateX(100%);
    transition: transform 0.24s var(--transition-spring);
    overflow-y: auto;
  }
  .ai-settings-panel.mobile-open { transform: translateX(0); }

  .ai-settings-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
  }
  .ai-settings-panel-title { font-size: 16px; font-weight: 700; color: var(--text-primary); }
  .ai-settings-close {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    border: none; background: transparent; color: var(--text-secondary);
    cursor: pointer; border-radius: 8px;
  }
  .ai-settings-close svg { width: 18px; height: 18px; }

  /* 抽屉里每个下拉：竖排，标签在上、下拉铺满 */
  .ai-settings-panel .ai-select-wrap { flex-direction: column; align-items: stretch; gap: 6px; }
  .ai-select-label { display: block; font-size: 12px; font-weight: 600; color: var(--text-secondary); }
  .ai-settings-panel .ai-select { max-width: none; width: 100%; height: 40px; font-size: 15px; }

  /* 设置抽屉遮罩 */
  .ai-settings-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 105;
    background: rgba(0, 0, 0, 0.32);
    opacity: 0;
    transition: opacity 0.2s var(--transition-ease);
  }
  .ai-settings-backdrop.visible { display: block; opacity: 1; }
}

/* ── AI Rename Dialog ── */
.ai-dialog-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: var(--overlay-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: ai-dialog-in 0.18s var(--transition-ease);
}

@keyframes ai-dialog-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.ai-dialog {
  background: var(--modal-bg);
  backdrop-filter: saturate(180%) blur(24px);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  border: 1px solid var(--separator);
  border-radius: var(--radius-modal);
  padding: 24px 24px 20px;
  width: 320px;
  max-width: 90vw;
  box-shadow: 0 8px 40px rgba(0,0,0,0.18), 0 2px 8px rgba(0,0,0,0.1);
  animation: ai-dialog-sheet-in 0.22s var(--transition-spring);
}

@keyframes ai-dialog-sheet-in {
  from { transform: scale(0.94) translateY(8px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.ai-dialog-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
  letter-spacing: -0.2px;
}

.ai-dialog-input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.18s, box-shadow 0.18s;
  margin-bottom: 16px;
}

.ai-dialog-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.18);
}

.ai-dialog-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.ai-dialog-btn {
  padding: 8px 20px;
  border-radius: 10px;
  border: none;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.18s var(--transition-ease), transform 0.15s var(--transition-spring);
}

.ai-dialog-btn:active { transform: scale(0.96); }

.ai-dialog-cancel {
  background: var(--input-bg);
  color: var(--text-primary);
}
.ai-dialog-cancel:hover { background: var(--input-bg-focus); }

.ai-dialog-confirm {
  background: var(--accent);
  color: white;
}
.ai-dialog-confirm:hover { background: #0066DD; }

[data-theme="dark"] .ai-dialog-confirm { background: var(--accent-dark); }
[data-theme="dark"] .ai-dialog-confirm:hover { background: #409CFF; }

/* ── AI Console 内容区高度：不硬编码 header 高度，改用 flex 吃满剩余空间 ──
   （父 .content-wrapper 在此场景固定为视口高并禁止外层滚动，header 占多少算多少，
     此区吃剩余高度并内部滚动，彻底避免 sticky header 被外层滚动顶飞的问题） */
.content-wrapper:has(.ai-console-content) {
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
}

.ai-console-content {
  flex: 1;
  min-height: 0;
}

/* AI Console 的 content-wrapper 底部只需留安全区（底部 Tab 栏已废弃） */
@media (max-width: 767px) {
  .content-wrapper:has(.ai-console-content) {
    padding-bottom: env(safe-area-inset-bottom);
  }
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ai-dialog-confirm { background: var(--accent-dark); }
  :root:not([data-theme="light"]) .ai-dialog-confirm:hover { background: #409CFF; }
}

/* ── Multi-engine search ────────────────────────────────────────────────── */
.search-tab-content {
  max-width: none;
  padding: 0;
}

.search-page {
  position: relative;
  width: min(1220px, calc(100% - 48px));
  margin: 0 auto;
  padding: clamp(64px, 12vh, 120px) 0 48px;
  display: grid;
  grid-template-columns: 210px minmax(0, 840px);
  justify-content: center;
  align-items: start;
  gap: clamp(42px, 6vw, 76px);
}

@media (max-width: 700px) {
  .nav-layout { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .nav-category-panel {
    position: static;
    padding: 8px;
    overflow: hidden;
  }
  .nav-category-title { min-height: 0; padding: 0 2px 7px; }
  .nav-category-title-label { display: none; }
  .nav-category-menu {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px;
    overflow: visible;
    scrollbar-width: none;
  }
  .nav-category-menu::-webkit-scrollbar { display: none; }
  .nav-category-row { flex: 0 1 auto; max-width: 100%; }
  .nav-category-child-row { margin-left: 18px; }
  .nav-category-row:not([data-category="all"]) { touch-action: manipulation; }
  .nav-category-row.nav-category-drag-placeholder {
    min-width: 54px;
    box-shadow: inset 2px 0 0 color-mix(in srgb, var(--accent) 78%, transparent);
  }
  .nav-category-item {
    width: auto;
    max-width: 100%;
    min-width: 0;
    grid-template-columns: 6px minmax(0, auto) auto;
    flex: 0 0 auto;
  }
  .nav-category-name { min-width: 0; }
}

.search-categories {
  padding: 10px;
  background: color-mix(in srgb, var(--card-bg) 72%, transparent);
  border: 1px solid var(--separator);
  border-radius: 10px;
  box-shadow: var(--card-shadow);
}

.search-categories-title {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px 12px;
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.08em;
}

.search-category-add {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  padding: 0;
  color: var(--text-tertiary);
  background: var(--input-bg);
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  transition: color .16s var(--transition-ease), background .16s var(--transition-ease), transform .16s var(--transition-ease);
}
.search-category-add:hover { color: var(--accent); background: var(--tab-active-bg); }
.search-category-add:active { transform: scale(.94); }
.search-category-add:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.search-category-add svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }

.search-category-list { display: flex; flex-direction: column; gap: 4px; }

.search-category-choice {
  width: 100%;
  height: 44px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 10px;
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  text-align: left;
  transition: color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), transform 0.12s var(--transition-ease);
}
.search-category-choice:hover { color: var(--text-primary); background: var(--input-bg); }
.search-category-choice:active { transform: scale(0.98); }
.search-category-choice.search-category-pressing { color: var(--accent); background: var(--input-bg); transform: scale(.985); }
.search-category-choice:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.search-category-choice.active { color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); font-weight: 600; }
.search-category-icon {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 6px;
  background: var(--input-bg);
}
.search-category-choice.active .search-category-icon { background: color-mix(in srgb, var(--accent) 14%, var(--card-bg)); }
.search-category-icon svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.search-category-count {
  min-width: 20px;
  margin-left: auto;
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 500;
  text-align: right;
}

.search-main { min-width: 0; }

.search-recent {
  min-width: 0;
  grid-column: 1 / -1;
  margin-top: 8px;
}

.search-recent-header {
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.search-recent-header h2 {
  margin: 0;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 650;
}

.search-recent-clear {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  padding: 0;
  color: var(--text-tertiary);
  background: transparent;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
}
.search-recent-clear[hidden] { display: none; }
.search-recent-clear:hover { color: var(--text-primary); background: var(--input-bg); }
.search-recent-clear:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.search-recent-clear svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.recent-sites-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.recent-site-card {
  min-width: 0;
  height: 74px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  color: var(--text-primary);
  text-decoration: none;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,.035);
  transition: border-color .16s var(--transition-ease), background .16s var(--transition-ease), transform .14s var(--transition-ease);
}
.recent-site-card:hover { border-color: color-mix(in srgb, var(--accent) 35%, var(--separator)); background: var(--input-bg); }
.recent-site-card:active { transform: scale(.985); }
.recent-site-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.recent-site-icon { width: 38px; height: 38px; flex: 0 0 38px; }
.recent-site-text { min-width: 0; display: flex; flex-direction: column; gap: 5px; }
.recent-site-text strong,
.recent-site-text small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.recent-site-text strong { font-size: 13px; font-weight: 600; }
.recent-site-text small { color: var(--text-tertiary); font-size: 11px; }
.recent-sites-empty {
  min-height: 82px;
  grid-column: 1 / -1;
  display: grid;
  place-items: center;
  color: var(--text-tertiary);
  border: 1px dashed var(--separator);
  border-radius: 8px;
  font-size: 12px;
}

.search-current-engine {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--text-primary);
  font-size: 21px;
  font-weight: 650;
}

.search-current-mark,
.search-engine-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  background: transparent;
}

.search-current-mark {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.search-engine-favicon {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.search-engine-favicon:not(.loaded) { opacity: 0; }
.search-current-mark[data-fallback]::before,
.search-engine-mark[data-fallback]::before {
  content: attr(data-fallback);
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--input-bg));
  border-radius: inherit;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
}

.search-box {
  height: 62px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 9px 0 18px;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
  box-shadow: var(--card-shadow);
  transition: border-color 0.16s var(--transition-ease), box-shadow 0.16s var(--transition-ease);
}

.search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.12), var(--card-shadow);
}

.search-box-icon {
  width: 21px;
  height: 21px;
  flex-shrink: 0;
  fill: none;
  stroke: var(--text-tertiary);
  stroke-width: 2;
  stroke-linecap: round;
}

.search-box input {
  min-width: 0;
  flex: 1;
  height: 100%;
  color: var(--text-primary);
  background: transparent;
  border: 0;
  outline: 0;
  font-family: inherit;
  font-size: 17px;
}

.search-box input::placeholder { color: var(--text-tertiary); }

.search-submit {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.16s var(--transition-ease), transform 0.14s var(--transition-spring);
}
.search-submit:hover { background: #0066DD; transform: scale(1.06); }
.search-submit:active { transform: scale(0.94); }
.search-submit:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.search-submit svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.search-engine-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.search-results-heading {
  min-height: 23px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
}
.search-results-heading small { color: var(--text-tertiary); font-size: 11px; font-weight: 400; }

.search-engine-choice {
  min-width: 0;
  height: 48px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 10px;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--separator);
  border-radius: 7px;
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  text-align: left;
  transition: color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), border-color 0.16s var(--transition-ease), transform 0.12s var(--transition-ease);
}
.search-engine-choice:is(a) { text-decoration: none; }
.search-engine-choice > span:nth-child(2) {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.search-engine-choice:hover {
  color: var(--text-primary);
  background: var(--input-bg);
}
.search-engine-choice:active { transform: scale(0.97); }
.search-engine-choice:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.search-engine-choice.active {
  color: var(--text-primary);
  background: var(--card-bg);
  border-color: var(--engine-color);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.search-engine-choice.direct:hover { border-color: var(--engine-color); }
.search-shortcut-item {
  position: relative;
  min-width: 0;
  height: 48px;
}
.search-shortcut-item .search-engine-choice {
  width: 100%;
  height: 100%;
  padding-right: 34px;
}
.search-shortcut-delete {
  position: absolute;
  z-index: 2;
  top: 50%;
  right: 7px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  padding: 0;
  color: var(--text-tertiary);
  background: var(--card-bg);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  font: 18px/1 inherit;
  opacity: 0;
  transform: translateY(-50%);
  transition: color .15s ease, background .15s ease, opacity .15s ease;
}
.search-shortcut-item:hover .search-shortcut-delete,
.search-shortcut-delete:focus-visible { opacity: 1; }
.search-shortcut-delete:hover { color: var(--danger); background: var(--input-bg); }
.search-shortcut-delete:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.search-direct-icon {
  width: 13px;
  height: 13px;
  margin-left: auto;
  flex-shrink: 0;
  fill: none;
  stroke: var(--text-tertiary);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.search-engine-mark {
  width: 26px;
  height: 26px;
  border-radius: 6px;
}
.search-engine-mark:empty { display: none; }

.bookmark-drop-zone::after {
  content: attr(data-bookmark-drop-label);
  position: absolute;
  z-index: 80;
  inset: 8px;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--accent);
  background: color-mix(in srgb, var(--bg-primary) 90%, transparent);
  border: 2px dashed color-mix(in srgb, var(--accent) 58%, var(--separator));
  border-radius: 14px;
  box-shadow: 0 12px 38px rgba(0, 0, 0, .12);
  font-size: 16px;
  font-weight: 650;
  text-align: center;
  pointer-events: none;
  opacity: 0;
  transform: scale(.985);
  transition: opacity .14s ease, transform .14s ease;
}
.bookmark-drop-zone.bookmark-drop-active::after { opacity: 1; transform: scale(1); }
.bookmark-drop-zone.bookmark-drop-saving::after { cursor: progress; }
.bookmark-drop-zone.bookmark-drop-error::after { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 60%, var(--separator)); }

/* 导航书签拖入时保留分类与分组可见，只在顶部显示去向提示。 */
.nav-layout.bookmark-drop-zone::after {
  inset: 8px auto auto 50%;
  width: min(440px, calc(100% - 32px));
  min-height: 46px;
  padding: 10px 18px;
  transform: translate(-50%, -6px) scale(.985);
}
.nav-layout.bookmark-drop-zone.bookmark-drop-active::after {
  transform: translate(-50%, 0) scale(1);
}
.nav-category-item.bookmark-drop-target {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--accent) 54%, transparent), 0 4px 14px color-mix(in srgb, var(--accent) 14%, transparent);
}
.group-section.bookmark-drop-target .sites-grid,
.nav-ungrouped-section.bookmark-drop-target {
  outline: 3px solid color-mix(in srgb, var(--accent) 70%, transparent);
  outline-offset: 7px;
  border-radius: var(--radius-card);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
}

@media (hover: none) {
  .search-shortcut-delete { opacity: 1; }
}

.translate-page {
  width: min(1480px, calc(100% - 40px));
  padding: clamp(28px, 5vh, 56px) 0 48px;
  display: block;
}
.translate-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}
.translate-resource-sidebar {
  position: sticky;
  top: 18px;
  padding: 12px;
  background: color-mix(in srgb, var(--card-bg) 82%, transparent);
  border: 1px solid var(--separator);
  border-radius: 14px;
  box-shadow: var(--card-shadow);
}
.translate-resource-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 8px 12px;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 650;
}
.translate-resource-heading small {
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 400;
}
.translate-resource-list { display: grid; gap: 7px; }
.translate-resource-option {
  position: relative;
  min-width: 0;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  padding: 10px;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  transition: color .15s ease, background .15s ease, border-color .15s ease, transform .12s ease;
}
.translate-resource-option:hover { color: var(--text-primary); background: var(--input-bg); }
.translate-resource-option:active { transform: scale(.98); }
.translate-resource-option.selected {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--accent) 9%, var(--card-bg));
  border-color: color-mix(in srgb, var(--accent) 38%, var(--separator));
}
.translate-resource-checkbox {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.translate-resource-check {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: transparent;
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
}
.translate-resource-check svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.translate-resource-option.selected .translate-resource-check {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.translate-resource-option:has(.translate-resource-checkbox:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.translate-resource-option:not(.unavailable):has(.translate-resource-checkbox:disabled) { opacity: .62; cursor: wait; }
.translate-resource-option.unavailable { opacity: .5; cursor: not-allowed; }
.translate-resource-option.unavailable:hover { color: var(--text-secondary); background: transparent; }
.translate-resource-option.unavailable:active { transform: none; }
.translate-resource-copy { min-width: 0; display: grid; gap: 3px; }
.translate-resource-copy strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 600;
}
.translate-resource-copy small { color: var(--text-tertiary); font-size: 10px; }
.translate-resource-note {
  margin: 12px 7px 3px;
  color: var(--text-tertiary);
  font-size: 10px;
  line-height: 1.55;
}
.translate-workspace {
  min-width: 0;
  padding: 18px;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 14px;
  box-shadow: var(--card-shadow);
}
.translate-toolbar,
.translate-title,
.translate-panel-header,
.translate-panel-footer,
.translate-actions,
.translate-results-toolbar { display: flex; align-items: center; }
.translate-toolbar { justify-content: space-between; gap: 18px; margin-bottom: 16px; }
.translate-title { gap: 10px; color: var(--text-primary); font-size: 20px; font-weight: 650; }
.translate-title-wrap { min-width: 0; }
.translate-heading-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, var(--card-bg));
  border-radius: 10px;
}
.translate-heading-icon svg {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.translate-subtitle {
  margin: 5px 0 0 50px;
  color: var(--text-tertiary);
  font-size: 12px;
}
.translate-select {
  height: 36px;
  max-width: 180px;
  padding: 0 30px 0 10px;
  color: var(--text-primary);
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
  outline: none;
  font: 14px inherit;
}
.translate-select:focus-visible { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,122,255,.12); }
.translate-panels {
  display: grid;
  grid-template-columns: minmax(0, .9fr) 44px minmax(0, 1.1fr);
  gap: 12px;
  align-items: start;
}
.translate-panel {
  min-width: 0;
  overflow: hidden;
  background: var(--bg-primary);
  border: 1px solid var(--separator);
  border-radius: 12px;
}
.translate-panel:focus-within { border-color: color-mix(in srgb, var(--accent) 55%, var(--separator)); }
.translate-panel-header {
  min-height: 52px;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--separator);
}
.translate-language-select { max-width: 150px; background-color: var(--card-bg); }
.translate-count,
.translate-result-label,
.translate-result-card-status,
.translate-result-detected { color: var(--text-tertiary); font-size: 11px; }
.translate-count.over-limit { color: var(--danger); font-weight: 600; }
.translate-textarea {
  display: block;
  width: 100%;
  min-height: 330px;
  padding: 16px;
  resize: vertical;
  color: var(--text-primary);
  background: transparent;
  border: 0;
  outline: 0;
  font: 16px/1.65 inherit;
}
.translate-textarea::placeholder { color: var(--text-tertiary); }
.translate-textarea.over-limit { box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--danger) 65%, transparent); }
.translate-panel-footer {
  min-height: 48px;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  color: var(--text-tertiary);
  border-top: 1px solid var(--separator);
  font-size: 11px;
}
.translate-results-column { min-width: 0; }
.translate-results-toolbar {
  min-height: 52px;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  margin-bottom: 10px;
  background: var(--bg-primary);
  border: 1px solid var(--separator);
  border-radius: 12px;
}
.translate-results-list { display: grid; gap: 10px; }
.translate-results-empty {
  min-height: 330px;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--text-tertiary);
  background: var(--bg-primary);
  border: 1px dashed var(--separator);
  border-radius: 12px;
  font-size: 13px;
  text-align: center;
}
.translate-result-card { transition: border-color .16s ease, box-shadow .16s ease; }
.translate-result-card.is-loading { border-color: color-mix(in srgb, var(--accent) 42%, var(--separator)); }
.translate-result-card.is-success { border-color: color-mix(in srgb, var(--success) 35%, var(--separator)); }
.translate-result-card.is-error { border-color: color-mix(in srgb, var(--danger) 38%, var(--separator)); }
.translate-result-service { min-width: 0; display: inline-flex; align-items: center; gap: 8px; color: var(--text-primary); font-size: 13px; font-weight: 600; }
.translate-result-service i {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  background: var(--text-tertiary);
  border-radius: 50%;
}
.translate-result-card.is-loading .translate-result-service i { background: var(--accent); animation: translate-pulse 1s ease-in-out infinite; }
.translate-result-card.is-success .translate-result-service i { background: var(--success); }
.translate-result-card.is-error .translate-result-service i { background: var(--danger); }
.translate-result-card.is-error .translate-result-card-status { color: var(--danger); }
.translate-result-text { min-height: 128px; resize: vertical; }
.translate-results-list.single .translate-result-text { min-height: 272px; }
.translate-result-footer { justify-content: space-between; }
.translate-action-btn,
.translate-primary-btn,
.translate-swap-btn {
  border: 0;
  font: inherit;
  cursor: pointer;
  transition: transform .14s var(--transition-spring), opacity .14s ease, background .14s ease;
}
.translate-action-btn { height: 32px; padding: 0 12px; color: var(--accent); background: var(--input-bg); border-radius: 7px; font-size: 12px; }
.translate-action-btn:disabled { opacity: .4; cursor: default; }
.translate-swap-btn {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 154px;
  color: var(--accent);
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 50%;
}
.translate-swap-btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.translate-swap-btn:hover { transform: rotate(8deg) scale(1.05); }
.translate-actions { justify-content: flex-end; gap: 16px; margin-top: 16px; }
.translate-status { flex: 1; min-height: 20px; color: var(--text-tertiary); font-size: 12px; text-align: right; }
.translate-status.success { color: var(--success); }
.translate-status.partial { color: #c07800; }
.translate-status.error { color: var(--danger); }
.translate-primary-btn { min-width: 112px; height: 40px; padding: 0 20px; color: #fff; background: var(--accent); border-radius: 9px; font-weight: 650; }
.translate-primary-btn:hover:not(:disabled) { transform: scale(1.03); background: #0066dd; }
.translate-primary-btn:disabled { opacity: .45; cursor: default; }
.translate-action-btn:focus-visible,
.translate-primary-btn:focus-visible,
.translate-swap-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@keyframes translate-pulse { 0%, 100% { opacity: .35; } 50% { opacity: 1; } }

@media (max-width: 1120px) {
  .translate-layout { grid-template-columns: 200px minmax(0, 1fr); }
  .translate-panels { grid-template-columns: minmax(0, 1fr); }
  .translate-swap-btn { justify-self: center; margin-top: 0; transform: rotate(90deg); }
  .translate-swap-btn:hover { transform: rotate(90deg) scale(1.05); }
  .translate-textarea { min-height: 210px; }
  .translate-results-list.single .translate-result-text { min-height: 210px; }
}

@media (max-width: 900px) {
  .search-page.translate-page {
    width: min(100% - 24px, 760px);
    padding-top: 24px;
    display: block;
  }
  .translate-layout { grid-template-columns: minmax(0, 1fr); }
  .translate-resource-sidebar { position: static; }
  .translate-resource-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .translate-resource-note { text-align: center; }
}

@media (max-width: 620px) {
  .search-page.translate-page { width: min(100% - 20px, 560px); }
  .translate-workspace { padding: 12px; }
  .translate-resource-list { grid-template-columns: minmax(0, 1fr); }
  .translate-resource-note { text-align: left; }
  .translate-toolbar { align-items: stretch; flex-direction: column; }
  .translate-panels { gap: 10px; }
  .translate-select { max-width: 155px; font-size: 16px; }
  .translate-textarea,
  .translate-results-list.single .translate-result-text { min-height: 180px; }
  .translate-actions { align-items: stretch; flex-direction: column; }
  .translate-status { text-align: left; }
  .translate-primary-btn { width: 100%; }
}

@media (max-width: 900px) {
  .search-page {
    width: min(100% - 32px, 760px);
    padding-top: 44px;
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }
  .search-recent { margin-top: 2px; }
  .recent-sites-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .search-categories { padding: 7px; overflow: hidden; }
  .search-categories-title { min-height: 0; padding: 0 2px 7px; }
  .search-categories-title-label { display: none; }
  .search-category-list { flex-direction: row; overflow-x: auto; scrollbar-width: none; }
  .search-category-list::-webkit-scrollbar { display: none; }
  .search-category-row { flex: 0 0 auto; }
  .search-category-choice { width: auto; min-width: max-content; height: 40px; padding: 0 10px; }
  .search-category-icon { width: 26px; height: 26px; }
  .search-category-count { display: none; }
}

@media (max-width: 680px) {
  .search-page { width: min(100% - 28px, 560px); }
  .search-engine-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .recent-sites-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 430px) {
  .search-page { padding-top: 34px; }
  .search-current-engine { margin-bottom: 14px; font-size: 18px; }
  .search-current-mark { width: 36px; height: 36px; }
  .search-box { height: 56px; padding-left: 14px; }
  .search-box input { font-size: 16px; }
  .search-submit { width: 40px; height: 40px; }
  .search-engine-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ── Memo workspace ────────────────────────────────────────────────────── */
.memo-tab-content {
  width: 100%;
  max-width: none;
  height: calc(100dvh - 52px);
  min-height: 520px;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

.memo-header-actions { display: flex; align-items: center; }
.memo-command-btn,
.memo-primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 34px;
  padding: 0 12px;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  transition: background 0.16s var(--transition-ease), transform 0.12s var(--transition-ease);
}
.memo-command-btn:hover,
.memo-primary-btn:hover { background: #0066dd; }
.memo-command-btn:active,
.memo-primary-btn:active { transform: scale(0.96); }
.memo-command-btn:focus-visible,
.memo-primary-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.memo-command-btn svg,
.memo-primary-btn svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.memo-workspace {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: clamp(260px, 25vw, 330px) minmax(0, 1fr);
  overflow: hidden;
  background: var(--bg-primary);
}

.memo-list-pane {
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border-right: 1px solid var(--separator);
  overflow: hidden;
}

.memo-list-tools {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  margin: 12px;
}
.memo-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
  flex-shrink: 0;
  margin: 0;
}
.memo-search-wrap > svg {
  position: absolute;
  left: 11px;
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--text-tertiary);
  stroke-width: 2;
  stroke-linecap: round;
  pointer-events: none;
}
.memo-search-wrap input {
  width: 100%;
  height: 36px;
  padding: 0 12px 0 34px;
  color: var(--text-primary);
  background: var(--input-bg);
  border: 1px solid transparent;
  border-radius: 7px;
  outline: 0;
  font-family: inherit;
  font-size: 13px;
  transition: border-color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), box-shadow 0.16s var(--transition-ease);
}
.memo-search-wrap input:hover { background: var(--input-bg-focus); }
.memo-search-wrap input:focus {
  background: var(--card-bg);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.11);
}
.memo-search-wrap input::placeholder { color: var(--text-tertiary); }

.memo-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0 8px 12px;
}
.memo-list-item {
  width: 100%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 3px;
  padding: 11px 12px 10px;
  color: var(--text-primary);
  background: transparent;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  transition: color 0.16s var(--transition-ease), background 0.16s var(--transition-ease);
}
.memo-list-item:hover { background: var(--input-bg); }
.memo-list-item.active { background: var(--tab-active-bg); }
.memo-list-item:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.memo-list-title,
.memo-list-preview {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.memo-list-title { font-size: 14px; font-weight: 650; }
.memo-list-preview { color: var(--text-secondary); font-size: 12px; }
.memo-list-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 16px;
  color: var(--text-tertiary);
  font-size: 10px;
}
.memo-list-meta span { display: inline-flex; align-items: center; gap: 3px; }
.memo-list-meta svg {
  width: 11px;
  height: 11px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.memo-list-empty {
  padding: 36px 12px;
  color: var(--text-tertiary);
  font-size: 13px;
  text-align: center;
}

.memo-editor-pane {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-primary);
}
.memo-editor-toolbar {
  min-height: 47px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  padding: 0 16px;
  border-bottom: 1px solid var(--separator);
  flex-shrink: 0;
}
.memo-save-state {
  margin-right: 4px;
  color: var(--text-tertiary);
  font-size: 11px;
}
.memo-save-state.error { color: var(--danger); }
.memo-refresh-btn { margin-right: auto; }
.memo-list-refresh { display: none !important; }
.memo-refresh-trigger:disabled { cursor: wait; opacity: 0.62; }
.memo-refresh-trigger.refreshing svg { animation: memo-refresh-spin 0.8s linear infinite; }
.memo-refresh-state {
  min-width: 0;
  color: var(--text-tertiary);
  font-size: 11px;
  white-space: nowrap;
}
.memo-refresh-state.error { color: var(--danger); }
@keyframes memo-refresh-spin { to { transform: rotate(360deg); } }
.memo-icon-btn {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  cursor: pointer;
  transition: color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), transform 0.12s var(--transition-ease);
}
.memo-icon-btn:hover { color: var(--accent); background: var(--input-bg); }
.memo-icon-btn:active { transform: scale(0.92); }
.memo-icon-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.memo-icon-btn svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.memo-danger-btn:hover { color: var(--danger); background: rgba(255, 59, 48, 0.1); }
.memo-mobile-back { display: none; }

.memo-editor-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 38px clamp(28px, 7vw, 96px) 56px;
}
.memo-title-input {
  width: min(100%, 900px);
  display: block;
  margin: 0 auto;
  padding: 0 0 14px;
  color: var(--text-primary);
  background: transparent;
  border: 0;
  outline: 0;
  font-family: inherit;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.25;
}
.memo-title-input::placeholder { color: var(--text-tertiary); }
.memo-content-input {
  width: min(100%, 900px);
  min-height: 330px;
  display: block;
  margin: 0 auto;
  padding: 0 0 30px;
  color: var(--text-primary);
  background: transparent;
  border: 0;
  outline: 0;
  resize: vertical;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.75;
}
.memo-content-input::placeholder { color: var(--text-tertiary); }
.memo-rich-text-editor {
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}
.memo-rich-text-editor:empty::before {
  color: var(--text-tertiary);
  content: attr(data-placeholder);
  pointer-events: none;
}
.memo-rich-text-image {
  width: auto;
  max-width: min(100%, 760px);
  max-height: 520px;
  display: block;
  margin: 12px 0;
  object-fit: contain;
  background: color-mix(in srgb, var(--input-bg) 72%, transparent);
  border: 1px solid var(--separator);
  border-radius: 8px;
  cursor: default;
  user-select: all;
}

.memo-mode-switcher {
  width: min(100%, 900px);
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin: 0 auto 18px;
  padding: 3px;
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 9px;
}
.memo-mode-button {
  min-width: 76px;
  height: 30px;
  padding: 0 11px;
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
}
.memo-mode-button:hover { color: var(--text-primary); }
.memo-mode-button.active {
  color: var(--text-primary);
  background: var(--card-bg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, .09);
}
.memo-mode-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.memo-content-region { width: 100%; margin-bottom: 30px; }
.memo-content-region > .memo-content-input {
  padding: 18px 20px;
  border: 1px dashed color-mix(in srgb, var(--text-tertiary) 58%, transparent);
  border-radius: 10px;
  transition: border-color 0.16s var(--transition-ease), background 0.16s var(--transition-ease);
}
.memo-content-region > .memo-content-input:hover {
  border-color: color-mix(in srgb, var(--text-secondary) 72%, transparent);
}
.memo-content-region > .memo-content-input:focus {
  background: color-mix(in srgb, var(--input-bg) 34%, transparent);
  border-color: color-mix(in srgb, var(--accent) 68%, transparent);
}

.memo-markdown-layout {
  width: min(100%, 1100px);
  min-height: 430px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  margin: 0 auto;
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 10px;
}
.memo-markdown-layout .memo-markdown-input {
  width: 100%;
  min-height: 430px;
  margin: 0;
  padding: 22px;
  resize: none;
  background: var(--bg-primary);
  border-right: 1px solid var(--separator);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
  line-height: 1.65;
}
.memo-markdown-preview {
  min-width: 0;
  max-height: 620px;
  overflow: auto;
  padding: 22px 26px;
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}
.memo-markdown-preview > :first-child { margin-top: 0; }
.memo-markdown-preview > :last-child { margin-bottom: 0; }
.memo-markdown-preview h1,
.memo-markdown-preview h2,
.memo-markdown-preview h3 { margin: 1.25em 0 .55em; line-height: 1.3; }
.memo-markdown-preview pre {
  overflow: auto;
  padding: 13px 15px;
  background: var(--input-bg);
  border-radius: 7px;
}
.memo-markdown-preview code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.memo-markdown-preview :not(pre) > code { padding: 2px 5px; background: var(--input-bg); border-radius: 4px; }
.memo-markdown-preview blockquote { margin-left: 0; padding-left: 14px; color: var(--text-secondary); border-left: 3px solid var(--accent); }
.memo-markdown-preview table { width: 100%; border-collapse: collapse; }
.memo-markdown-preview th,
.memo-markdown-preview td { padding: 7px 9px; border: 1px solid var(--separator); text-align: left; }
.memo-markdown-empty { color: var(--text-tertiary); }
.memo-markdown-preview .memo-inline-image {
  width: 100%;
  max-height: 420px;
  display: block;
  object-fit: contain;
  background: color-mix(in srgb, var(--input-bg) 72%, transparent);
}
.memo-markdown-preview .memo-inline-image {
  margin: 12px 0;
  border: 1px solid var(--separator);
  border-radius: 8px;
}

.memo-drawing-shell {
  width: min(100%, 1100px);
  height: clamp(460px, 62vh, 720px);
  display: flex;
  flex-direction: column;
  margin: 0 auto;
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, .05);
}
.memo-drawing-toolbar {
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 8px;
  overflow-x: auto;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--separator);
  scrollbar-width: thin;
}
.memo-drawing-tools { display: flex; align-items: center; gap: 3px; }
.memo-drawing-tool,
.memo-drawing-action,
.memo-drawing-zoom {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  padding: 0;
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  font-family: inherit;
}
.memo-drawing-tool:hover,
.memo-drawing-action:hover,
.memo-drawing-zoom:hover { color: var(--text-primary); background: var(--input-bg-focus); }
.memo-drawing-tool.active { color: var(--accent); background: var(--tab-active-bg); }
.memo-drawing-tool:focus-visible,
.memo-drawing-action:focus-visible,
.memo-drawing-zoom:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.memo-drawing-action:disabled { opacity: .3; cursor: default; }
.memo-drawing-tool svg,
.memo-drawing-action svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.memo-drawing-zoom { width: 50px; font-size: 11px; font-variant-numeric: tabular-nums; }
.memo-drawing-divider { width: 1px; height: 22px; flex: 0 0 auto; margin: 0 3px; background: var(--separator); }
.memo-drawing-color {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  padding: 3px;
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 7px;
}
.memo-drawing-color input { width: 100%; height: 100%; padding: 0; border: 0; cursor: pointer; }
.memo-drawing-clear { margin-left: auto; }
.memo-drawing-clear:hover { color: var(--danger); background: rgba(255, 59, 48, .1); }
.memo-drawing-stage { position: relative; min-height: 0; flex: 1; overflow: hidden; }
.memo-drawing-canvas {
  width: 100%;
  height: 100%;
  display: block;
  color: var(--text-primary);
  background: var(--bg-primary);
  outline: 0;
  touch-action: none;
  user-select: none;
}
.memo-drawing-canvas[data-tool="select"] { cursor: default; }
.memo-drawing-canvas[data-tool="hand"] { cursor: grab; }
.memo-drawing-canvas[data-tool="pen"],
.memo-drawing-canvas[data-tool="rect"],
.memo-drawing-canvas[data-tool="ellipse"],
.memo-drawing-canvas[data-tool="arrow"],
.memo-drawing-canvas[data-tool="text"],
.memo-drawing-canvas[data-tool="eraser"] { cursor: crosshair; }
.memo-canvas-text-editor {
  position: absolute;
  z-index: 3;
  min-width: 72px;
  min-height: 28px;
  margin: 0;
  padding: 0 2px 2px;
  overflow: hidden;
  color: var(--text-primary);
  caret-color: var(--accent);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--accent);
  border-radius: 0;
  outline: 0;
  box-shadow: none;
  resize: none;
  font-family: system-ui, sans-serif;
  line-height: 1.25;
  white-space: pre;
  transform-origin: top left;
}
.memo-canvas-text-editor::placeholder {
  color: var(--text-tertiary);
  opacity: .72;
}
.memo-canvas-selection {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.5;
  stroke-dasharray: 5 4;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
}
.memo-drawing-hint {
  position: absolute;
  right: 10px;
  bottom: 8px;
  padding: 4px 7px;
  color: var(--text-tertiary);
  background: color-mix(in srgb, var(--bg-primary) 84%, transparent);
  border-radius: 5px;
  font-size: 10px;
  pointer-events: none;
}

.memo-attachments {
  width: min(100%, 900px);
  margin: 0 auto;
  padding-top: 20px;
  border-top: 1px solid var(--separator);
}
.memo-section-heading {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 10px;
}
.memo-section-heading strong { font-size: 13px; font-weight: 650; }
.memo-section-heading span {
  min-width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
  color: var(--text-secondary);
  background: var(--input-bg);
  border-radius: 10px;
  font-size: 10px;
}
.memo-dropzone {
  width: 100%;
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-secondary);
  background: transparent;
  border: 1px dashed var(--separator);
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  transition: color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), border-color 0.16s var(--transition-ease);
}
.memo-dropzone svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.memo-dropzone:hover,
.memo-dropzone.dragging {
  color: var(--accent);
  background: rgba(0, 122, 255, 0.06);
  border-color: var(--accent);
}
.memo-dropzone.uploading { opacity: 0.55; pointer-events: none; }
.memo-dropzone:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.memo-upload-status {
  min-height: 22px;
  padding: 5px 2px 0;
  color: var(--text-tertiary);
  font-size: 11px;
}
.memo-upload-status:empty { min-height: 22px; }
.memo-upload-progress {
  display: grid;
  gap: 5px;
  padding: 6px 0 8px;
}
.memo-upload-progress-head {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--text-secondary);
}
.memo-upload-progress-head strong {
  min-width: 0;
  overflow: hidden;
  font-size: 11px;
  font-weight: 550;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.memo-upload-progress-head span {
  flex-shrink: 0;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  font-weight: 650;
}
.memo-upload-progress-track {
  height: 4px;
  overflow: hidden;
  background: var(--input-bg);
  border-radius: 999px;
}
.memo-upload-progress-track i {
  height: 100%;
  display: block;
  background: var(--accent);
  border-radius: inherit;
  transition: width 0.2s var(--transition-ease);
}
.memo-upload-progress small {
  overflow: hidden;
  color: var(--text-tertiary);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.memo-upload-progress.error .memo-upload-progress-head span,
.memo-upload-progress.error small { color: var(--danger); }
.memo-upload-progress.error .memo-upload-progress-track i { background: var(--danger); }
.memo-attachment-list { border-top: 1px solid var(--separator); }
.memo-attachment-row {
  min-width: 0;
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 2px;
  border-bottom: 1px solid var(--separator);
}
.memo-file-kind {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  color: var(--accent);
  background: rgba(0, 122, 255, 0.1);
  border-radius: 7px;
  font-size: 9px;
  font-weight: 700;
}
.memo-file-info {
  min-width: 0;
  display: flex;
  flex: 1;
  flex-direction: column;
}
.memo-file-info strong,
.memo-file-info small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.memo-file-info strong { font-size: 13px; font-weight: 550; }
.memo-file-info small { color: var(--text-tertiary); font-size: 10px; }

.memo-welcome,
.memo-error,
.memo-loading {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
}
.memo-welcome { flex-direction: column; gap: 12px; }
.memo-welcome strong { color: var(--text-secondary); font-size: 15px; }
.memo-welcome-icon {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  background: var(--input-bg);
  border-radius: 8px;
}
.memo-welcome-icon svg {
  width: 25px;
  height: 25px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.memo-primary-btn { margin-top: 2px; }
.memo-loading { gap: 5px; }
.memo-loading span {
  width: 6px;
  height: 6px;
  background: var(--text-tertiary);
  border-radius: 50%;
  animation: memo-loading 1.1s ease-in-out infinite;
}
.memo-loading span:nth-child(2) { animation-delay: 0.16s; }
.memo-loading span:nth-child(3) { animation-delay: 0.32s; }
@keyframes memo-loading { 0%, 80%, 100% { opacity: 0.3; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-4px); } }

@media (prefers-reduced-motion: reduce) {
  .memo-loading span { animation: none; }
  .memo-refresh-trigger.refreshing svg { animation: none; }
  .memo-list-pane,
  .memo-editor-pane { transition: none !important; }
}

@media (max-width: 767px) {
  .memo-tab-content {
    height: calc(100dvh - 52px - env(safe-area-inset-bottom));
    min-height: 420px;
    padding-bottom: 0;
  }
  .memo-command-btn { min-height: 38px; }
  .memo-workspace { position: relative; display: block; }
  .memo-list-pane,
  .memo-editor-pane {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border-right: 0;
    transition: transform 0.24s var(--transition-ease), opacity 0.2s var(--transition-ease);
  }
  .memo-list-pane { transform: translateX(0); }
  .memo-editor-pane { transform: translateX(100%); }
  .memo-workspace.memo-has-selection .memo-list-pane { opacity: 0; transform: translateX(-28%); pointer-events: none; }
  .memo-workspace.memo-has-selection .memo-editor-pane { transform: translateX(0); }
  .memo-mobile-back { display: inline-flex; margin-right: 0; }
  .memo-editor-toolbar { padding: 0 10px; }
  .memo-editor-scroll { padding: 26px 18px 42px; }
  .memo-title-input { font-size: 24px; }
  .memo-mode-switcher { width: 100%; }
  .memo-mode-button { min-width: 0; flex: 1; font-size: 13px; }
  .memo-content-input { min-height: 260px; font-size: 16px; line-height: 1.65; }
  .memo-markdown-layout { grid-template-columns: minmax(0, 1fr); }
  .memo-markdown-layout .memo-markdown-input {
    min-height: 300px;
    border-right: 0;
    border-bottom: 1px solid var(--separator);
  }
  .memo-markdown-preview { min-height: 300px; max-height: none; padding: 20px; }
  .memo-drawing-shell { height: 520px; }
  .memo-drawing-toolbar { min-height: 50px; }
  .memo-drawing-hint { display: none; }
  .memo-list-tools { margin: 10px 12px; }
  .memo-refresh-btn { display: none; }
  .memo-list-refresh { display: inline-flex !important; }
  .memo-search-wrap input { height: 40px; font-size: 16px; }
  .memo-list-item { min-height: 72px; padding-top: 12px; padding-bottom: 12px; }
  .memo-dropzone { min-height: 58px; }
}

/* ── Network topology ───────────────────────────────────────────────────── */
.network-tab-content {
  max-width: none;
  height: calc(100dvh - 52px);
  min-height: 560px;
  padding: 0;
  overflow: hidden;
}

.network-overview {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
}

.network-meta-bar {
  min-height: 50px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--separator);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.network-summary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--text-secondary);
  font-size: 13px;
}

.network-summary span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.network-summary b { color: var(--text-primary); font-size: 14px; }
.network-summary i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-tertiary);
}
.network-summary-online i { background: var(--success); }
.network-summary-offline i { background: var(--danger); }
.network-summary-unknown i { background: var(--warning); }

.network-updated {
  color: var(--text-tertiary);
  font-size: 12px;
  white-space: nowrap;
}

.network-actions { display: flex; align-items: center; gap: 4px; }
.network-action-btn {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--text-secondary);
  background: transparent;
  cursor: pointer;
  transition: color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), transform 0.12s var(--transition-ease);
}
.network-action-btn svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.network-action-btn:hover { color: var(--accent); background: var(--input-bg); }
.network-action-btn:active { transform: scale(0.92); }
.network-action-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.network-action-btn.loading svg { animation: network-spin 0.8s linear infinite; }

.network-viewport {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  background-color: var(--bg-primary);
  background-image:
    linear-gradient(var(--network-grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--network-grid-major) 1px, transparent 1px),
    linear-gradient(var(--network-grid-minor) 1px, transparent 1px),
    linear-gradient(90deg, var(--network-grid-minor) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
  cursor: grab;
  touch-action: none;
  user-select: none;
}
.network-viewport.dragging { cursor: grabbing; }
.network-map-controls {
  position: absolute;
  top: 14px;
  right: 16px;
  z-index: 6;
  display: flex;
  align-items: center;
  padding: 4px;
  background: color-mix(in srgb, var(--bg-secondary) 92%, transparent);
  border: 1px solid var(--separator);
  border-radius: 9px;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(12px);
}
.network-map-btn {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  border-radius: 6px;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}
.network-map-btn:hover { color: var(--accent); background: var(--input-bg); }
.network-map-btn:active { transform: scale(0.92); }
.network-map-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.network-map-btn svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.network-map-fit { margin-left: 2px; border-left: 1px solid var(--separator); border-radius: 0 6px 6px 0; }
.network-map-reset { margin-left: 2px; border-left: 1px solid var(--separator); border-radius: 0 6px 6px 0; }
.network-zoom-value {
  min-width: 48px;
  color: var(--text-secondary);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}
.network-stage {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
  will-change: transform;
}

.network-group {
  position: absolute;
  z-index: 0;
  border: 1px dashed rgba(0, 122, 255, 0.24);
  border-radius: 8px;
  background: rgba(0, 122, 255, 0.025);
  cursor: grab;
  touch-action: none;
  transition: border-color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), box-shadow 0.16s var(--transition-ease);
}
.network-group:hover {
  border-color: rgba(0, 122, 255, 0.46);
  background: rgba(0, 122, 255, 0.045);
}
.network-group.dragging {
  cursor: grabbing;
  border-color: rgba(0, 122, 255, 0.62);
  background: rgba(0, 122, 255, 0.065);
  box-shadow: 0 10px 28px rgba(0,0,0,0.08);
}
.network-group-nas {
  border-color: rgba(0, 131, 115, 0.28);
  background: rgba(0, 131, 115, 0.025);
}
.network-group-nas:hover,
.network-group-nas.dragging { border-color: rgba(0, 131, 115, 0.58); }
.network-group-title {
  position: absolute;
  top: 13px;
  left: 16px;
  display: flex;
  align-items: baseline;
  gap: 9px;
}
.network-group-title strong { color: var(--text-secondary); font-size: 12px; font-weight: 650; }
.network-group-title span { color: var(--text-tertiary); font-size: 9px; }

.network-links {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}
.network-link-base,
.network-link-flow {
  fill: none;
  vector-effect: non-scaling-stroke;
}
.network-link-base {
  stroke: rgba(0, 122, 255, 0.19);
  stroke-width: 2;
}
.network-link-flow {
  stroke: var(--accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 2 15;
  animation: network-flow 1.55s linear infinite;
}
.network-link-wan .network-link-base { stroke: rgba(255, 149, 0, 0.22); }
.network-link-wan .network-link-flow { stroke: var(--warning); }
.network-link-virtual .network-link-base { stroke: rgba(142, 90, 216, 0.2); }
.network-link-virtual .network-link-flow { stroke: #8e5ad8; animation-duration: 2.1s; }
.network-link-service .network-link-base { stroke: rgba(0, 131, 115, 0.2); }
.network-link-service .network-link-flow { stroke: #008373; animation-duration: 1.85s; }
.network-link-tunnel .network-link-base { stroke: rgba(0, 120, 212, 0.22); }
.network-link-tunnel .network-link-flow { stroke: #0078d4; animation-duration: 1.7s; }
.network-link-proxy .network-link-base { stroke: rgba(221, 87, 36, 0.22); }
.network-link-proxy .network-link-flow { stroke: #dd5724; animation-duration: 1.35s; }
.network-link-label {
  fill: var(--text-tertiary);
  font-size: 10px;
  text-anchor: middle;
  paint-order: stroke;
  stroke: var(--bg-primary);
  stroke-width: 4px;
  stroke-linejoin: round;
}

.network-device {
  position: absolute;
  z-index: 2;
  width: 190px;
  min-height: 96px;
  padding: 11px 12px 10px;
  color: var(--text-primary);
  text-decoration: none;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
  box-shadow: var(--card-shadow);
  cursor: grab;
  touch-action: none;
  transition: border-color 0.16s var(--transition-ease), box-shadow 0.16s var(--transition-ease), transform 0.16s var(--transition-ease);
}
a.network-device { cursor: grab; }
a.network-device:hover {
  border-color: rgba(0, 122, 255, 0.34);
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  transform: translateY(-2px);
}
.network-device.dragging,
a.network-device.dragging {
  z-index: 4;
  cursor: grabbing;
  border-color: rgba(0, 122, 255, 0.55);
  box-shadow: 0 10px 28px rgba(0,0,0,0.16);
  transform: scale(1.02);
}
.network-device.network-device-settling,
a.network-device.network-device-settling {
  transition:
    left 0.22s cubic-bezier(0.22, 1, 0.36, 1),
    top 0.22s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.16s var(--transition-ease),
    box-shadow 0.16s var(--transition-ease),
    transform 0.16s var(--transition-ease);
}
.network-device-head { display: flex; align-items: center; gap: 9px; }
.network-device-icon {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 7px;
  color: var(--accent);
  background: rgba(0, 122, 255, 0.1);
}
.network-device-icon svg { width: 18px; height: 18px; }
.network-device-icon-internet { color: #d97900; background: rgba(255, 149, 0, 0.12); }
.network-device-icon-cloud { color: #0078d4; background: rgba(0, 120, 212, 0.11); }
.network-device-icon-hypervisor { color: #7a4cc2; background: rgba(142, 90, 216, 0.12); }
.network-device-icon-home { color: #248a3d; background: rgba(52, 199, 89, 0.12); }
.network-device-icon-desktop { color: #b14b52; background: rgba(255, 59, 48, 0.1); }
.network-device-icon-storage { color: #007f73; background: rgba(0, 131, 115, 0.11); }
.network-device-icon-database { color: #c45f16; background: rgba(244, 128, 36, 0.11); }
.network-device-icon-cat { color: #7a4cc2; background: rgba(142, 90, 216, 0.11); }
.network-device-icon-container { color: #1772b8; background: rgba(0, 122, 255, 0.1); }
.network-device-icon-service { color: #248a3d; background: rgba(52, 199, 89, 0.1); }
.network-node-service {
  padding: 9px 10px 8px;
  background: var(--bg-secondary);
  box-shadow: 0 1px 5px rgba(0,0,0,0.05);
}
.network-node-service .network-device-head { gap: 7px; }
.network-node-service .network-device-icon { width: 28px; height: 28px; }
.network-node-service .network-device-icon svg { width: 16px; height: 16px; }
.network-node-service .network-device-meta { margin-top: 6px; }
.network-node-service .network-device-services { margin-top: 4px; }
.network-device-title-wrap { min-width: 0; display: flex; flex: 1; flex-direction: column; }
.network-device-title-wrap strong {
  overflow: hidden;
  color: var(--text-primary);
  font-size: 13px;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.network-device-title-wrap span {
  overflow: hidden;
  color: var(--text-tertiary);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.network-status-dot {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  border: 2px solid var(--card-bg);
  border-radius: 50%;
  background: var(--text-tertiary);
  box-shadow: 0 0 0 1px var(--separator);
}
.network-status-online {
  background: var(--success);
  box-shadow: 0 0 0 1px rgba(52, 199, 89, 0.36), 0 0 0 5px rgba(52, 199, 89, 0.1);
  animation: network-status-pulse 2.4s ease-in-out infinite;
}
.network-status-offline { background: var(--danger); }
.network-device-meta {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-top: 8px;
  color: var(--text-tertiary);
  font-size: 10px;
}
.network-device-meta code {
  min-width: 0;
  color: var(--text-secondary);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  line-height: 1.3;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.network-device-meta > span { flex-shrink: 0; }
.network-device-services {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
  overflow: hidden;
}
.network-device-services span {
  overflow: hidden;
  max-width: 70px;
  padding: 1px 5px;
  color: var(--text-secondary);
  background: var(--input-bg);
  border-radius: 4px;
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.network-device-metrics {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 3px 7px;
  margin-top: 6px;
  padding-top: 5px;
  border-top: 1px solid var(--separator);
  font-variant-numeric: tabular-nums;
}
.network-device-metrics > span {
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
  overflow: hidden;
  white-space: nowrap;
}
.network-device-metrics b {
  flex-shrink: 0;
  color: var(--text-tertiary);
  font-size: 8px;
  font-weight: 550;
}
.network-device-metrics strong {
  min-width: 0;
  overflow: hidden;
  color: var(--text-secondary);
  font-size: 9px;
  font-weight: 600;
  text-overflow: ellipsis;
}
.network-device-metrics .network-metric-runtime { grid-column: 1 / -1; }
.network-node-service .network-device-metrics { margin-top: 4px; padding-top: 4px; }

.network-legend {
  position: absolute;
  right: 16px;
  bottom: 14px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 8px;
  color: var(--text-tertiary);
  background: var(--bg-secondary);
  border: 1px solid var(--separator);
  border-radius: 6px;
  box-shadow: var(--card-shadow);
  font-size: 10px;
  pointer-events: none;
}
.network-legend span { display: inline-flex; align-items: center; gap: 5px; }
.legend-line { width: 20px; height: 0; border-top: 2px dashed var(--accent); }
.legend-line-virtual { border-color: #8e5ad8; }
.legend-line-service { border-color: #008373; }
.legend-line-tunnel { border-color: #0078d4; }
.legend-line-proxy { border-color: #dd5724; }

.network-loading,
.network-error {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  color: var(--text-tertiary);
}
.network-loading span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-tertiary);
  animation: network-loading 1.1s ease-in-out infinite;
}
.network-loading span:nth-child(2) { animation-delay: 0.16s; }
.network-loading span:nth-child(3) { animation-delay: 0.32s; }

@keyframes network-flow { to { stroke-dashoffset: -34; } }
@keyframes network-status-pulse { 50% { box-shadow: 0 0 0 1px rgba(52, 199, 89, 0.36), 0 0 0 7px rgba(52, 199, 89, 0.04); } }
@keyframes network-spin { to { transform: rotate(360deg); } }
@keyframes network-loading { 0%, 80%, 100% { opacity: 0.35; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-4px); } }

@media (prefers-reduced-motion: reduce) {
  .network-link-flow,
  .network-status-online,
  .network-action-btn.loading svg,
  .network-loading span { animation: none; }
  .network-device { transition: none; }
}

@media (max-width: 767px) {
  .network-tab-content {
    height: calc(100dvh - 52px - env(safe-area-inset-bottom));
    min-height: 460px;
  }
  .network-meta-bar {
    min-height: 58px;
    padding: 7px 12px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 1px;
  }
  .network-summary { gap: 9px; font-size: 11px; }
  .network-summary b { font-size: 12px; }
  .network-updated { font-size: 10px; }
  .network-legend { right: 10px; bottom: 10px; max-width: calc(100% - 20px); flex-wrap: wrap; gap: 6px 10px; }
  .network-map-controls { top: 10px; right: 10px; }
  .content-header:has(.network-actions) { padding-right: 8px; }
  .network-action-btn { width: 32px; height: 32px; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   iOS / Mobile 适配（A 触摸布局 + B PWA standalone + C Safari 坑修复）
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── PWA standalone：装到主屏全屏运行时，顶部内容避开状态栏 ── */
@media all and (display-mode: standalone) {
  .content-header { padding-top: env(safe-area-inset-top); min-height: calc(52px + env(safe-area-inset-top)); }
}

/* ── 手机端（≤767px）：安全区 + 触摸尺寸（导航走左上角汉堡抽屉侧边栏，无底部 Tab 栏） ── */
@media (max-width: 767px) {
  /* content-header 避开顶部安全区（刘海/状态栏） */
  .content-header {
    padding-top: env(safe-area-inset-top);
    height: auto;
    min-height: calc(52px + env(safe-area-inset-top));
    flex-wrap: wrap;
    padding-bottom: 8px;
    align-items: center;
    row-gap: 8px;
  }
  /* 第一行：汉堡 + 标题占满宽度，把 actions 挤到下一行 */
  .content-title { flex: 1; }
  /* 工具栏整条落第二行、占满 header 宽度、左对齐（不再靠 margin-left:auto 右缩） */
  .content-actions {
    flex-basis: 100%;
    margin-left: 0;
    width: 100%;
  }

  /* 内容区底部只需留底部安全区（不再有底部 Tab 栏占位） */
  .tab-content {
    padding-bottom: env(safe-area-inset-bottom);
  }

  .download-tab-content { min-height: calc(100dvh - 60px); }
  .download-center { min-height: 320px; }

  /* 触摸目标 ≥44pt */
  .mobile-menu-btn { width: 44px; height: 44px; }
  .header-btn { min-width: 40px; min-height: 40px; }

  /* 站点网格：手机上每格更大更好点，最少 4 列自适应 */
  .sites-grid { grid-template-columns: repeat(auto-fill, 68px); gap: 6px; }
  .site-card { min-height: 68px; padding: 7px 4px 5px; }
  .site-icon-wrap { width: 28px; height: 28px; border-radius: 7px; }
  .private-page {
    width: 100%;
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .private-categories {
    padding: 8px;
  }
  .private-category-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* 所有文本输入元素 ≥16px，防 iOS Safari 聚焦时自动放大页面 */
  .form-input, .form-select, .nav-search, .pin-input, .auth-card input, .ai-textarea {
    font-size: 16px;
  }

  /* AI Console：高度算上顶/底安全区 + 底部 Tab 栏，且用 100dvh（随键盘/地址栏变化） */
  #tab-content:has(.ai-chat-main) {
    padding-bottom: 0;
  }

  /* 日志 Tab 工具栏（8 个控件）：手机窄屏不换行、改横向滑动，避免换行溢出压住下方日志内容。
     header 高度固定 52px 容不下两行，故 nowrap + 横滑；控件不被压扁。 */
  .content-actions:has(.log-toolbar) {
    min-width: 0;          /* 允许在 flex 里收缩，给横滑容器让出空间 */
    overflow: hidden;      /* 自身不溢出 header，滚动交给内部 .log-toolbar */
  }
  .log-toolbar {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;   /* 给横滚动条留一点空间，不遮住控件 */
    scrollbar-width: none;             /* Firefox 隐藏滚动条 */
  }
  .log-toolbar::-webkit-scrollbar { display: none; }  /* WebKit 隐藏滚动条 */
  .log-toolbar > * { flex-shrink: 0; }  /* select/search/button 都不被压扁 */
  .log-search { min-width: 100px; }     /* 搜索框窄屏收一点，别占太宽 */
}

/* ── AI Console 输入区避开底部安全区（键盘收起时不被横条压住） ── */
.ai-input-area {
  padding-bottom: max(16px, env(safe-area-inset-bottom));
}

/* AI 发送按钮 / 输入区图标按钮触摸尺寸放大到易点 */
@media (max-width: 767px) {
  .ai-send-btn { width: 40px; height: 40px; }
  .ai-icon-btn { min-width: 40px; min-height: 40px; }
}

/* ── 全局：iOS 惯性滚动 + 禁止长按选中/回弹高亮 ── */
body {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: none; /* 抑制橡皮筋式整页回弹 */
}

.ai-messages, .tab-content { -webkit-overflow-scrolling: touch; }

/* ── Log tab (terminal 风格) ─────────────────────────────────────────────── */
.log-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-width: 0;
}
.log-filters {
  display: flex;
  align-items: center;
  gap: 7px;
  flex: 1;
  min-width: 0;
}
.log-select {
  height: 34px;
  min-width: 90px;
  max-width: 132px;
  padding: 0 28px 0 10px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), box-shadow 0.16s var(--transition-ease);
}
.log-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1 1 180px;
  min-width: 120px;
}
.log-search-icon {
  position: absolute;
  left: 10px;
  width: 15px;
  height: 15px;
  fill: none;
  stroke: var(--text-tertiary);
  stroke-width: 2;
  stroke-linecap: round;
  pointer-events: none;
}
.log-search {
  width: 100%;
  height: 34px;
  padding: 0 10px 0 32px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), box-shadow 0.16s var(--transition-ease);
}
.log-select:hover,
.log-search:hover { background: var(--input-bg-focus); }
.log-select:focus-visible,
.log-search:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.13);
}
.log-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-left: 10px;
  border-left: 1px solid var(--separator);
  flex-shrink: 0;
}
.log-action-btn {
  width: 34px;
  height: 34px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.16s var(--transition-ease), background 0.16s var(--transition-ease), border-color 0.16s var(--transition-ease), transform 0.12s var(--transition-ease);
}
.log-action-btn svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.log-action-btn:hover {
  color: var(--accent);
  background: var(--input-bg-focus);
  border-color: var(--separator);
}
.log-action-btn:active { transform: scale(0.92); }
.log-action-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.log-action-btn.active {
  color: var(--accent);
  background: rgba(0, 122, 255, 0.12);
  border-color: rgba(0, 122, 255, 0.22);
}
.log-action-btn.success {
  color: #248a3d;
  background: rgba(52, 199, 89, 0.11);
  border-color: rgba(52, 199, 89, 0.2);
}
.log-btn-danger { color: var(--danger); }
.log-btn-danger:hover {
  color: var(--danger);
  background: rgba(255, 59, 48, 0.1);
  border-color: rgba(255, 59, 48, 0.18);
}

/* 终端主体：深色底 + 等宽字体，不随主题变浅（terminal 语义） */
.log-terminal {
  flex: 1;
  min-width: 0;
  height: 100%;
  overflow: auto;
  background: #0d1117;
  border: 1px solid var(--separator);
  border-radius: 12px;
  padding: 10px 12px;
  font-family: "SF Mono", ui-monospace, Menlo, Monaco, "Cascadia Code", Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.5;
  -webkit-overflow-scrolling: touch;
}
.log-empty {
  color: #6e7681;
  padding: 20px;
  text-align: center;
}
.log-lines { display: flex; flex-direction: column; }

.log-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  padding: 2px 4px;
  border-radius: 4px;
  white-space: pre-wrap;
  word-break: break-word;
  color: #c9d1d9;
}
.log-line:hover { background: rgba(255,255,255,0.04); }

.log-time { color: #6e7681; flex-shrink: 0; }
.log-badge {
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  letter-spacing: 0.3px;
}
.log-badge-error { background: rgba(248,81,73,0.18); color: #ff7b72; }
.log-badge-warn  { background: rgba(210,153,34,0.18); color: #e3b341; }
.log-badge-info  { background: rgba(88,166,255,0.15); color: #58a6ff; }
.log-badge-debug { background: rgba(139,148,158,0.15); color: #8b949e; }

.log-source { color: #79c0ff; flex-shrink: 0; }
.log-instance { color: #7ee787; flex-shrink: 0; font-size: 11px; opacity: 0.9; }
.log-sess { color: #d2a8ff; flex-shrink: 0; }
.log-msg { color: #e6edf3; }
.log-detail { color: #8b949e; opacity: 0.85; width: 100%; padding-left: 8px; }

/* 整行按级别微调左边框，一眼定位 error */
.log-level-error { border-left: 2px solid #f85149; }
.log-level-warn  { border-left: 2px solid #d29922; }

/* 手机上工具栏可换行、终端字号略小 */
@media (max-width: 767px) {
  .log-terminal { font-size: 11.5px; }
  .content-header:has(.log-toolbar) {
    height: auto;
    min-height: 52px;
    padding-top: 8px;
    padding-bottom: 8px;
  }
  .content-header:has(.log-toolbar) .content-title { display: none; }
  .content-actions:has(.log-toolbar) {
    flex: 1;
    min-width: 0;
  }
  .log-toolbar {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 6px;
  }
  .log-filters {
    width: 100%;
    flex: 1 1 100%;
    gap: 6px;
  }
  .log-select {
    min-width: 0;
    flex: 1 1 104px;
    padding: 0 22px 0 8px;
  }
  .log-search-wrap {
    flex-basis: 120px;
    min-width: 120px;
  }
  .log-actions {
    margin-left: auto;
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 520px) {
  .log-filters { flex-wrap: wrap; }
  .log-select {
    max-width: none;
    flex-basis: calc(50% - 3px);
  }
  .log-search-wrap { flex-basis: 100%; }
}

/* Log Tab 占满视口高、内部滚动（复用 AI Console 的高度方案，避免外层滚动） */
.content-wrapper:has(.log-tab-content) {
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
}
.log-tab-content {
  flex: 1;
  min-height: 0;
  display: flex;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 20px 24px 24px;
}
@media (max-width: 767px) {
  .content-wrapper:has(.log-tab-content) {
    padding-bottom: env(safe-area-inset-bottom);
  }
  .log-tab-content { padding: 12px 12px 12px; }
}

/* ── SSH Console ── */
.content-wrapper:has(.ssh-tab-content) {
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
}
.ssh-tab-content {
  flex: 1;
  min-height: 0;
  display: flex;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 16px 20px 20px;
}
.ssh-toolbar {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}
.ssh-target-select {
  min-width: 210px;
  max-width: 340px;
  height: 34px;
  padding: 0 30px 0 10px;
  color: var(--text-primary);
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 8px;
  font: inherit;
}
.ssh-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 12px;
  white-space: nowrap;
}
.ssh-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #8e8e93;
  box-shadow: 0 0 0 3px rgba(142,142,147,.12);
}
.ssh-status-dot.connecting {
  background: #ff9f0a;
  box-shadow: 0 0 0 3px rgba(255,159,10,.14);
  animation: ssh-pulse 1.2s ease-in-out infinite;
}
.ssh-status-dot.connected {
  background: #30d158;
  box-shadow: 0 0 0 3px rgba(48,209,88,.14);
}
.ssh-status-dot.error {
  background: #ff453a;
  box-shadow: 0 0 0 3px rgba(255,69,58,.14);
}
@keyframes ssh-pulse { 50% { opacity: .45; } }
.ssh-connect-btn {
  height: 34px;
  padding: 0 14px;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.ssh-connect-btn.connected { background: var(--danger); }
.ssh-connect-btn:disabled { opacity: .45; cursor: default; }
.ssh-console-shell {
  position: relative;
  display: flex;
  flex: 1;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: #0b0d12;
  border: 1px solid rgba(120,130,145,.25);
  border-radius: 13px;
  box-shadow: 0 12px 36px rgba(0,0,0,.18);
}
.ssh-terminal {
  flex: 1;
  min-width: 0;
  min-height: 0;
  padding: 12px 10px;
  overflow: hidden;
}
.ssh-terminal .xterm { height: 100%; }
.ssh-terminal .xterm-viewport { overscroll-behavior: contain; }
.ssh-connect-gate {
  position: absolute;
  z-index: 3;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(7,9,13,.76);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.ssh-connect-gate[hidden] { display: none; }
.ssh-gate-card {
  width: min(400px, 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  padding: 26px;
  color: #f0f3f6;
  text-align: center;
  background: rgba(28,32,40,.96);
  border: 1px solid rgba(150,160,175,.22);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.ssh-gate-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 2px;
  fill: none;
  stroke: #79c0ff;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.ssh-gate-card strong { font-size: 17px; }
#ssh-gate-target { color: #79c0ff; font: 12px/1.4 ui-monospace, Consolas, monospace; }
#ssh-gate-subtitle { color: #a7b0be; font-size: 12px; }
.ssh-gate-card small { color: #7d8795; font-size: 11px; line-height: 1.45; }
.ssh-totp-form {
  width: 100%;
  display: flex;
  gap: 8px;
  margin-top: 5px;
}
.ssh-totp-form input {
  flex: 1;
  min-width: 0;
  height: 38px;
  padding: 0 11px;
  color: #f0f3f6;
  background: #11151c;
  border: 1px solid #394252;
  border-radius: 8px;
  outline: none;
  font: 14px ui-monospace, Consolas, monospace;
  letter-spacing: 1px;
}
.ssh-totp-form input:focus { border-color: #58a6ff; box-shadow: 0 0 0 3px rgba(88,166,255,.13); }
.ssh-totp-form button {
  height: 38px;
  padding: 0 14px;
  color: #fff;
  background: #0a84ff;
  border: 0;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.ssh-totp-form button:disabled { opacity: .55; }
.ssh-gate-error { min-height: 17px; color: #ff7b72; font-size: 12px; }
.ssh-mobile-keys { display: none; }

@media (max-width: 767px) {
  .content-wrapper:has(.ssh-tab-content) { padding-bottom: env(safe-area-inset-bottom); }
  .ssh-tab-content { padding: 8px; }
  .ssh-toolbar { width: 100%; gap: 6px; }
  .ssh-target-select { flex: 1; min-width: 0; max-width: none; }
  .ssh-status { display: none; }
  .ssh-console-shell { padding-bottom: 43px; border-radius: 10px; }
  .ssh-terminal { padding: 8px 6px; }
  .ssh-mobile-keys {
    position: absolute;
    z-index: 2;
    inset: auto 0 0;
    height: 43px;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 7px calc(5px + env(safe-area-inset-bottom));
    overflow-x: auto;
    background: #141821;
    border-top: 1px solid #2c3442;
    scrollbar-width: none;
  }
  .ssh-mobile-keys::-webkit-scrollbar { display: none; }
  .ssh-mobile-keys button {
    flex: 0 0 auto;
    min-width: 38px;
    height: 30px;
    padding: 0 9px;
    color: #d8dee9;
    background: #222834;
    border: 1px solid #343d4d;
    border-radius: 6px;
    font: 12px ui-monospace, Consolas, monospace;
  }
  .ssh-gate-card { padding: 22px 17px; }
}

@media (max-width: 430px) {
  .ssh-connect-btn { padding: 0 11px; }
  .ssh-totp-form { flex-direction: column; }
  .ssh-totp-form button { width: 100%; }
}

/* ── Settings Modal ── */
.settings-sheet { max-width: 640px; padding-bottom: 24px; }
.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.settings-header .modal-title { margin: 0; }
.settings-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  display: flex;
  transition: background 0.2s, color 0.2s;
}
.settings-close:hover { background: var(--tab-hover-bg); color: var(--text-primary); }

.settings-body { display: flex; gap: 20px; min-height: 280px; }
.settings-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
  width: 130px;
}
.settings-nav-item {
  text-align: left;
  padding: 10px 14px;
  border: none;
  background: none;
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.settings-nav-item:hover { background: var(--tab-hover-bg); color: var(--text-primary); }
.settings-nav-item.active { background: var(--tab-active-bg); color: var(--accent); }

.settings-pane-wrap { flex: 1; min-width: 0; }
.settings-pane { display: none; }
.settings-pane.active { display: block; }

.settings-section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 12px;
}
.settings-hint {
  font-size: 12.5px;
  color: var(--text-tertiary);
  line-height: 1.5;
  margin-bottom: 14px;
}

.branding-form { display: flex; flex-direction: column; gap: 14px; }
.branding-field { display: flex; flex-direction: column; gap: 7px; color: var(--text-secondary); font-size: 13px; }
.branding-icon-row { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; }
.branding-icon-preview {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 12px;
}
.branding-icon-preview img { width: 34px; height: 34px; object-fit: contain; }
.branding-file-btn { display: inline-flex; align-items: center; justify-content: center; cursor: pointer; }
.branding-status { min-height: 18px; color: var(--text-secondary); font-size: 12px; }
.branding-actions { margin-top: 0; }

/* 主题单选 */
.settings-radio-group { display: flex; flex-direction: column; gap: 8px; }
.settings-radio {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--separator);
  border-radius: 12px;
  background: none;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s, background 0.2s;
}
.settings-radio:hover { background: var(--tab-hover-bg); }
.settings-radio.selected { border-color: var(--accent); background: var(--tab-active-bg); }
.settings-radio-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--text-tertiary);
  flex-shrink: 0;
  position: relative;
  transition: border-color 0.2s;
}
.settings-radio.selected .settings-radio-dot { border-color: var(--accent); }
.settings-radio.selected .settings-radio-dot::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--accent);
}
.settings-radio-text { display: flex; flex-direction: column; gap: 2px; }
.settings-radio-label { font-size: 14px; font-weight: 500; color: var(--text-primary); }
.settings-radio-desc { font-size: 12px; color: var(--text-tertiary); }

/* Tab 控制列表 */
.settings-tab-list { display: flex; flex-direction: column; }
.settings-tab-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 4px;
  border-bottom: 1px solid var(--separator);
}
.settings-tab-row:last-child { border-bottom: none; }
.settings-tab-icon {
  display: flex;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.settings-tab-icon svg { width: 18px; height: 18px; }
.settings-tab-name { flex: 1; font-size: 14px; color: var(--text-primary); }

/* 开关 */
.settings-switch { position: relative; display: inline-flex; flex-shrink: 0; cursor: pointer; }
.settings-switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.settings-switch-track {
  width: 42px;
  height: 25px;
  border-radius: 13px;
  background: var(--text-tertiary);
  position: relative;
  transition: background 0.25s;
}
.settings-switch-track::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.25);
  transition: transform 0.25s;
}
.settings-switch input:checked + .settings-switch-track { background: var(--accent); }
.settings-switch input:checked + .settings-switch-track::after { transform: translateX(17px); }

@media (max-width: 599px) {
  .settings-body { flex-direction: column; gap: 12px; min-height: 0; }
  .settings-nav { flex-direction: row; width: auto; }
  .settings-nav-item { flex: 1; text-align: center; }
}

/* ── AI 权限确认卡片 ── */
.ai-perm-card {
  display: inline-flex;
  flex-direction: column;
  gap: 10px;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 14px;
  padding: 14px 16px;
  max-width: 520px;
  width: 100%;
  box-shadow: var(--card-shadow);
  font-size: 14px;
  transition: opacity 0.2s var(--transition-ease);
}

.ai-perm-card-redline {
  border-color: var(--danger);
  box-shadow: 0 0 0 1px var(--danger), var(--card-shadow);
}

.ai-perm-card-decided {
  opacity: 0.65;
}

.ai-perm-type-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-perm-type-badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 600;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  background: var(--input-bg);
  color: var(--text-secondary);
  border-radius: 6px;
  letter-spacing: 0.3px;
}

.ai-perm-redline-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--danger);
  background: rgba(255, 59, 48, 0.1);
  padding: 2px 7px;
  border-radius: 6px;
}

.ai-perm-detail-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ai-perm-detail-toggle {
  align-self: flex-start;
  font-size: 12px;
  color: var(--accent);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  transition: opacity 0.15s;
}
.ai-perm-detail-toggle:hover { opacity: 0.75; }

.ai-perm-detail-code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border-radius: 8px;
  padding: 10px 12px;
  white-space: pre-wrap;
  word-break: break-all;
  margin: 0;
  max-height: 260px;
  overflow-y: auto;
}

.ai-perm-detail-collapsible.ai-perm-detail-collapsed .ai-perm-detail-code {
  display: none;
}

.ai-perm-btn-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
}

.ai-perm-btn {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 9px;
  border: 1px solid transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s var(--transition-ease), opacity 0.15s, transform 0.1s var(--transition-spring);
}
.ai-perm-btn:active:not(:disabled) { transform: scale(0.96); }
.ai-perm-btn:disabled { cursor: default; opacity: 0.5; }

.ai-perm-btn-reject {
  background: var(--input-bg);
  color: var(--text-secondary);
  border-color: var(--separator);
}
.ai-perm-btn-reject:hover:not(:disabled) { background: var(--input-bg-focus); }

.ai-perm-btn-once {
  background: var(--accent);
  color: #fff;
}
[data-theme="dark"] .ai-perm-btn-once { background: var(--accent-dark); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ai-perm-btn-once { background: var(--accent-dark); }
}
.ai-perm-btn-once:hover:not(:disabled) { opacity: 0.88; }

.ai-perm-btn-always {
  background: var(--input-bg);
  color: var(--accent);
  border-color: var(--separator);
}
.ai-perm-btn-always:hover:not(:disabled) { background: var(--input-bg-focus); }

.ai-perm-decided-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ── AI 提问卡片 ── */
.ai-question-card {
  display: inline-flex;
  flex-direction: column;
  gap: 10px;
  background: var(--card-bg);
  border: 1px solid var(--separator);
  border-radius: 14px;
  padding: 14px 16px;
  max-width: 520px;
  width: 100%;
  box-shadow: var(--card-shadow);
  font-size: 14px;
  transition: opacity 0.2s var(--transition-ease);
}

.ai-question-card-decided {
  opacity: 0.65;
}

.ai-question-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.1px;
}

.ai-question-body {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.5;
}

.ai-question-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ai-question-opt-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 9px 13px;
  background: var(--input-bg);
  border: 1px solid var(--separator);
  border-radius: 10px;
  cursor: pointer;
  text-align: left;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s var(--transition-ease), border-color 0.15s, transform 0.1s var(--transition-spring);
}
.ai-question-opt-btn:hover:not(:disabled) {
  background: var(--input-bg-focus);
  border-color: var(--accent);
}
.ai-question-opt-btn:active:not(:disabled) { transform: scale(0.98); }
.ai-question-opt-btn:disabled { cursor: default; }
.ai-question-opt-btn.ai-question-opt-selected {
  background: rgba(0, 122, 255, 0.1);
  border-color: var(--accent);
}
[data-theme="dark"] .ai-question-opt-btn.ai-question-opt-selected {
  background: rgba(10, 132, 255, 0.15);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ai-question-opt-btn.ai-question-opt-selected {
    background: rgba(10, 132, 255, 0.15);
  }
}

.ai-question-opt-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.ai-question-opt-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.ai-question-decided-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 4px 0;
}

/* ── 手机端：子分类改为右侧滑入抽屉（仿 AI Console 会话抽屉） ── */
@media (max-width: 767px) {
  /* 平铺的子分类行在手机端隐藏，改由抽屉承载 */
  .nav-category-child-row { display: none; }
  /* 有子分类的父分类显示展开箭头 */
  .nav-category-has-children .nav-category-chevron {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
  }
  /* 有 chevron 时，item 网格多一列放箭头 */
  .nav-category-has-children .nav-category-item {
    grid-template-columns: 8px minmax(0, 1fr) auto auto;
  }

  /* 遮罩 */
  .nav-subcat-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 105;
    background: rgba(0, 0, 0, 0.32);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s var(--transition-ease);
  }
  .nav-subcat-backdrop.visible {
    opacity: 1;
    pointer-events: all;
  }

  /* 抽屉：贴顶贴底、从右滑入，观感对齐会话抽屉 */
  .nav-subcat-drawer {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 78%;
    max-width: 300px;
    z-index: 110;
    transform: translateX(100%);
    transition: transform 0.24s var(--transition-spring);
    box-shadow: -2px 0 16px rgba(0, 0, 0, 0.18);
    background: var(--bg-sidebar);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .nav-subcat-drawer.mobile-open {
    transform: translateX(0);
  }
  .nav-subcat-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 16px 12px;
    flex-shrink: 0;
    border-bottom: 1px solid var(--separator);
  }
  .nav-subcat-back {
    width: 32px;
    height: 32px;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    padding: 0;
    color: var(--text-secondary);
    background: var(--input-bg);
    border: none;
    border-radius: 8px;
    cursor: pointer;
  }
  .nav-subcat-back:hover { background: var(--input-bg-focus); color: var(--accent); }
  .nav-subcat-back svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
  .nav-subcat-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .nav-subcat-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 10px;
  }
  .nav-subcat-item {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 10px 12px;
    margin-bottom: 3px;
    color: var(--text-secondary);
    background: transparent;
    border: 0;
    border-radius: 8px;
    font: inherit;
    font-size: 15px;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s var(--transition-ease), color 0.15s var(--transition-ease);
  }
  .nav-subcat-item:hover { background: var(--tab-hover-bg); color: var(--text-primary); }
  .nav-subcat-item.active { background: var(--tab-active-bg); color: var(--accent); font-weight: 600; }
  .nav-subcat-item-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}