/* ==========================================
   DLMTP Bug Report - Material Design 3 暗色主题
   Design Tokens & Component Styles
   ========================================== */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* 主色调 (Purple) */
  --md-primary:        #D0BCFF;
  --md-on-primary:     #381E72;
  --md-primary-container: #4F378B;
  --md-on-primary-container: #EADDFF;

  /* 次要色 (Secondary) */
  --md-secondary:      #CCC2DC;
  --md-on-secondary:   #332D41;
  --md-secondary-container: #4A4458;
  --md-on-secondary-container: #E8DEF8;

  /* 第三色 (Tertiary/Teal) */
  --md-tertiary:       #7DE0D6;
  --md-on-tertiary:    #003735;
  --md-tertiary-container: #00504D;
  --md-on-tertiary-container: #9CF0E7;

  /* 错误色 */
  --md-error:          #F2B8B5;
  --md-on-error:       #601410;
  --md-error-container: #8C1D18;
  --md-on-error-container: #F9DEDC;

  /* Surface 系列 */
  --md-surface:           #1C1B1F;
  --md-surface-dim:       #141316;
  --md-surface-bright:    #242329;
  --md-surface-container-lowest: #0F0E13;
  --md-surface-container-low:    #1C1B1F;
  --md-surface-container:        #201F24;
  --md-surface-container-high:   #2B2930;
  --md-surface-container-highest:#36343B;
  --md-on-surface:        #E6E1E5;
  --md-on-surface-variant:#CAC4D0;

  /* Outline */
  --md-outline:          #938F99;
  --md-outline-variant:  #49454F;

  /* 阴影 */
  --md-elevation-1: 0 1px 2px rgba(0,0,0,.3), 0 1px 3px 1px rgba(0,0,0,.15);
  --md-elevation-2: 0 1px 2px rgba(0,0,0,.3), 0 2px 6px 2px rgba(0,0,0,.15);
  --md-elevation-3: 0 4px 8px 3px rgba(0,0,0,.15), 0 1px 3px rgba(0,0,0,.3);

  /* 形状 */
  --md-shape-extra-small: 4px;
  --md-shape-small:       8px;
  --md-shape-medium:      12px;
  --md-shape-large:       16px;
  --md-shape-extra-large: 28px;
  --md-shape-full:        9999px;

  /* 排版 */
  --md-typescale-display-large: 400 57px/64px 'Inter',system-ui,sans-serif;
  --md-typescale-display-medium: 400 45px/52px 'Inter',system-ui,sans-serif;
  --md-typescale-display-small: 400 36px/44px 'Inter',system-ui,sans-serif;
  --md-typescale-headline-large: 400 32px/40px 'Inter',system-ui,sans-serif;
  --md-typescale-headline-medium: 400 28px/36px 'Inter',system-ui,sans-serif;
  --md-typescale-headline-small: 400 24px/32px 'Inter',system-ui,sans-serif;
  --md-typescale-title-large: 400 22px/28px 'Inter',system-ui,sans-serif;
  --md-typescale-title-medium: 500 16px/24px 'Inter',system-ui,sans-serif;
  --md-typescale-title-small: 500 14px/20px 'Inter',system-ui,sans-serif;
  --md-typescale-body-large: 400 16px/24px 'Inter',system-ui,sans-serif;
  --md-typescale-body-medium: 400 14px/20px 'Inter',system-ui,sans-serif;
  --md-typescale-body-small: 400 12px/16px 'Inter',system-ui,sans-serif;
  --md-typescale-label-large: 500 14px/20px 'Inter',system-ui,sans-serif;
  --md-typescale-label-medium: 500 12px/16px 'Inter',system-ui,sans-serif;
  --md-typescale-label-small: 500 11px/16px 'Inter',system-ui,sans-serif;

  /* 动效 */
  --md-duration-short1: 50ms;
  --md-duration-short2: 100ms;
  --md-duration-short3: 150ms;
  --md-duration-short4: 200ms;
  --md-duration-medium1: 250ms;
  --md-duration-medium2: 300ms;
  --md-duration-medium3: 350ms;
  --md-duration-medium4: 400ms;
  --md-duration-long1: 450ms;
  --md-duration-long2: 500ms;
  --md-easing-standard: cubic-bezier(0.2,0,0,1);
  --md-easing-emphasized: cubic-bezier(0.05,0.7,0.1,1);
  --md-easing-decelerate: cubic-bezier(0,0,0,1);
  --md-easing-accelerate: cubic-bezier(0.3,0,1,1);

  /* 布局 */
  --sidebar-width: 260px;
  --topbar-height: 64px;
}

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{
  font:var(--md-typescale-body-medium);
  background:var(--md-surface);
  color:var(--md-on-surface);
  min-height:100vh;
  display:flex;
  overflow:hidden;
}
a{color:var(--md-primary);text-decoration:none}
a:hover{text-decoration:underline}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--md-outline-variant);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--md-outline)}

/* --- Material Icons --- */
.material-symbols-rounded{
  font-variation-settings:'FILL'0,'wght'400,'GRAD'0,'opsz'24;
  user-select:none;
  font-size:24px;
}
.material-symbols-rounded.fill{
  font-variation-settings:'FILL'1,'wght'400,'GRAD'0,'opsz'24;
}

/* ================================================================
   SIDEBAR
   ================================================================ */
.m3-sidebar{
  width:var(--sidebar-width);
  height:100vh;
  position:fixed;
  left:0;top:0;
  z-index:100;
  background:var(--md-surface-container);
  display:flex;
  flex-direction:column;
  border-right:1px solid var(--md-outline-variant);
  transition:transform var(--md-duration-medium2) var(--md-easing-standard);
}
.m3-sidebar-header{
  padding:20px 16px 12px 28px;
  display:flex;
  align-items:center;
  gap:12px;
}
.m3-sidebar-close-btn.m3-btn-icon{
  display: none;
  margin-left: auto;
  flex-shrink: 0;
}
.m3-sidebar-header .logo-icon{font-size:32px;color:var(--md-primary)}
.m3-sidebar-header .m3-logo-text{display:flex;flex-direction:column}
.m3-sidebar-header .m3-logo-title{
  font:var(--md-typescale-title-large);
  font-weight:600;
  color:var(--md-primary);
  letter-spacing:-0.5px;
  line-height:1.1;
}
.m3-sidebar-header .m3-logo-subtitle{
  font:var(--md-typescale-label-medium);
  color:var(--md-on-surface-variant);
}
.m3-nav{
  flex:1;
  overflow-y:auto;
  padding:4px 12px;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.m3-nav-item{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 16px 10px 12px;
  border-radius:28px;
  cursor:pointer;
  border:none;
  background:transparent;
  color:var(--md-on-surface-variant);
  font:var(--md-typescale-label-large);
  text-align:left;
  width:100%;
  transition:background var(--md-duration-short3) var(--md-easing-standard);
  position:relative;
}
.m3-nav-item:hover{background:rgba(208,188,255,.08)}
.m3-nav-item.active{
  background:var(--md-secondary-container);
  color:var(--md-on-secondary-container);
}
.m3-nav-item .m3-nav-icon{font-size:24px;flex-shrink:0}
.m3-nav-item .m3-nav-badge{
  margin-left:auto;
  background:var(--md-error-container);
  color:var(--md-on-error-container);
  font:var(--md-typescale-label-small);
  padding:2px 8px;
  border-radius:100px;
  min-width:24px;
  text-align:center;
}
.m3-nav-divider{
  height:1px;
  background:var(--md-outline-variant);
  margin:8px 16px;
}
.m3-sidebar-footer{
  border-top:1px solid var(--md-outline-variant);
  padding:12px;
  display:flex;
  flex-direction:column;
  gap:4px;
}

/* Sidebar user profile (GAS login) */
.m3-sidebar-user{
  display:flex;
  align-items:center;
  gap:10px;
  padding:8px 12px;
  border-radius:var(--md-shape-full);
  background:var(--md-surface-container-highest);
}
.m3-sidebar-avatar{
  width:36px;height:36px;
  border-radius:50%;
  background:var(--md-primary-container);
  color:var(--md-on-primary-container);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:600;
  font-size:16px;
  flex-shrink:0;
  overflow:hidden;
}
.m3-sidebar-avatar img{
  width:100%;height:100%;
  border-radius:50%;
  object-fit:cover;
}
.m3-sidebar-userinfo{
  display:flex;
  flex-direction:column;
  min-width:0;
}
.m3-sidebar-username{
  font:var(--md-typescale-label-medium);
  color:var(--md-on-surface);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.m3-sidebar-useremail{
  font:var(--md-typescale-label-small);
  color:var(--md-on-surface-variant);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.m3-sidebar-logout-btn{
  flex-shrink:0;
}

/* ================================================================
   MAIN CONTENT
   ================================================================ */
.m3-main{
  flex:1;
  margin-left:var(--sidebar-width);
  display:flex;
  flex-direction:column;
  min-height:100vh;
  overflow:hidden;
}

/* Topbar */
.m3-topbar{
  height:var(--topbar-height);
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:var(--md-surface-container);
  border-bottom:1px solid var(--md-outline-variant);
  position:sticky;
  top:0;
  z-index:50;
  flex-shrink:0;
}
.m3-topbar-start{
  display:flex;
  align-items:center;
  gap:16px;
}
.m3-topbar-title{
  font:var(--md-typescale-title-large);
  color:var(--md-on-surface);
}
.m3-topbar-end{
  display:flex;
  align-items:center;
  gap:12px;
}
/* Topbar 中的提交按钮：桌面端隐藏（侧边栏已有），移动端显示 */
#btnOpenSubmitTop {
  display: none;
}

/* 竖屏用户头像区（桌面端隐藏） */
.m3-topbar-user-mobile{
  display:none;
  position:relative;
}
.m3-topbar-avatar-btn{
  width:36px;height:36px;
  border-radius:50%;
  border:none;
  background:var(--md-primary-container);
  color:var(--md-on-primary-container);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:600;
  font-size:15px;
  overflow:hidden;
  padding:0;
  flex-shrink:0;
}
.m3-topbar-avatar-btn img{
  width:100%;height:100%;
  border-radius:50%;
  object-fit:cover;
}
/* 用户下拉菜单 */
.m3-topbar-user-menu{
  display:none;
  position:absolute;
  top:calc(100% + 8px);
  right:0;
  min-width:200px;
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-medium);
  box-shadow:var(--md-elevation-3);
  border:1px solid var(--md-outline-variant);
  padding:8px;
  z-index:150;
}
.m3-topbar-user-menu.open{
  display:block;
}
.m3-topbar-user-menu-header{
  display:flex;
  align-items:center;
  gap:12px;
  padding:8px;
  border-bottom:1px solid var(--md-outline-variant);
  margin-bottom:4px;
}
.m3-topbar-user-menu-logout{
  width:100%;
  justify-content:flex-start;
  color:var(--md-on-surface-variant);
}

/* Content */
.m3-content{
  flex:1;
  padding:24px;
  overflow-y:auto;
  max-height:calc(100vh - var(--topbar-height));
}

/* Page */
.m3-page{display:none;animation:fadeSlideIn var(--md-duration-medium2) var(--md-easing-standard)}
.m3-page.active{display:block}

/* 待办页面：填满整个内容区域 */
#page-todo.active{display:flex;flex-direction:column;height:100%}
#page-todo.active .m3-kanban{flex:1;min-height:0;overflow-y:hidden;align-items:stretch;padding-bottom:0}
@keyframes fadeSlideIn{
  from{opacity:0;transform:translateY(8px)}
  to{opacity:1;transform:translateY(0)}
}

/* ================================================================
   COMPONENTS
   ================================================================ */

/* Card */
.m3-card{
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-medium);
  padding:16px;
  box-shadow:var(--md-elevation-1);
  transition:box-shadow var(--md-duration-short3) var(--md-easing-standard);
}
.m3-card:hover{box-shadow:var(--md-elevation-2)}
.m3-card.elevated{background:var(--md-surface-container-low);box-shadow:var(--md-elevation-2)}
.m3-card.outlined{background:transparent;border:1px solid var(--md-outline-variant);box-shadow:none}
.m3-card.filled{background:var(--md-surface-container-highest);box-shadow:none}

/* Stat Card */
.m3-stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.m3-stat-card{
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-large);
  padding:20px;
  box-shadow:var(--md-elevation-1);
  transition:all var(--md-duration-short3) var(--md-easing-standard);
  cursor:default;
}
.m3-stat-card:hover{transform:translateY(-2px);box-shadow:var(--md-elevation-2)}
.m3-stat-card .stat-icon{
  width:48px;height:48px;
  border-radius:var(--md-shape-full);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:12px;
  font-size:24px;
}
.m3-stat-card .stat-value{
  font:var(--md-typescale-display-small);
  color:var(--md-on-surface);
  line-height:1;
}
.m3-stat-card .stat-label{
  font:var(--md-typescale-body-small);
  color:var(--md-on-surface-variant);
  margin-top:4px;
}
.stat-icon-total{background:var(--md-primary-container);color:var(--md-on-primary-container)}
.stat-icon-pending{background:var(--md-error-container);color:var(--md-on-error-container)}
.stat-icon-progress{background:#4A3F1A;color:#F7DC6F}
.stat-icon-fixed{background:#1A3A1A;color:#81C784}
.stat-icon-cant-repro{background:var(--md-secondary-container);color:var(--md-on-secondary-container)}
.stat-icon-duplicate{background:#2E1B3C;color:#D0BCFF}

/* Buttons */
.m3-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 24px;
  border-radius:var(--md-shape-full);
  font:var(--md-typescale-label-large);
  border:none;
  cursor:pointer;
  transition:all var(--md-duration-short3) var(--md-easing-standard);
  white-space:nowrap;
  user-select:none;
}
.m3-btn:disabled{opacity:.38;cursor:not-allowed}
.m3-btn-filled{
  background:var(--md-primary);
  color:var(--md-on-primary);
  box-shadow:var(--md-elevation-1);
}
.m3-btn-filled:hover:not(:disabled){box-shadow:var(--md-elevation-2);filter:brightness(1.08)}
.m3-btn-tonal{
  background:var(--md-secondary-container);
  color:var(--md-on-secondary-container);
}
.m3-btn-tonal:hover:not(:disabled){filter:brightness(1.1)}
.m3-btn-outlined{
  background:transparent;
  color:var(--md-primary);
  border:1px solid var(--md-outline);
}
.m3-btn-outlined:hover:not(:disabled){background:rgba(208,188,255,.08)}
.m3-btn-text{
  background:transparent;
  color:var(--md-primary);
  padding:10px 12px;
}
.m3-btn-text:hover:not(:disabled){background:rgba(208,188,255,.08)}
.m3-btn-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  padding:0;
  border-radius:var(--md-shape-full);
  background:transparent;
  color:var(--md-on-surface-variant);
  border:none;
  cursor:pointer;
}
.m3-btn-icon:hover{background:rgba(230,225,229,.08)}
.m3-btn .btn-icon{font-size:18px}

/* Chips */
.m3-chip{
  display:inline-flex;
  align-items:center;
  padding:6px 16px;
  border-radius:var(--md-shape-small);
  font:var(--md-typescale-label-medium);
  border:1px solid var(--md-outline);
  background:transparent;
  color:var(--md-on-surface-variant);
  gap:6px;
}
.m3-chip.active{
  background:var(--md-secondary-container);
  color:var(--md-on-secondary-container);
  border-color:var(--md-secondary-container);
}
.m3-chip.suggestion{
  background:var(--md-primary-container);
  color:var(--md-on-primary-container);
  border-color:var(--md-primary-container);
}
/* Status Chips */
.chip-pending{background:#4A1A1A;color:#F2B8B5;border-color:#8C1D18}
.chip-progress{background:#3D2E00;color:#FFD54F;border-color:#6D4C00}
.chip-fixed{background:#0D3310;color:#A5D6A7;border-color:#1B5E20}
.chip-cant-repro{background:#1E1B2E;color:#CCC2DC;border-color:#332D41}
.chip-duplicate{background:#2E1B3C;color:#D0BCFF;border-color:#4F378B}

/* Priority Chips */
.chip-urgent{background:#601410;color:#F2B8B5;border-color:#8C1D18;font-weight:600}
.chip-high{background:#6D2E00;color:#FFB74D;border-color:#E65100}
.chip-medium{background:#1E2B3C;color:#90CAF9;border-color:#1565C0}
.chip-low{background:#1B2E1B;color:#A5D6A7;border-color:#2E7D32}
.chip-none{background:var(--md-surface-container-highest);color:var(--md-on-surface-variant);border-color:var(--md-outline-variant)}

/* Chip group for checkbox labels */
.m3-chip-group{display:flex;flex-wrap:wrap;gap:8px}
.m3-chip-group .m3-chip{cursor:pointer;user-select:none;transition:background var(--md-duration-short3)}
.m3-chip-group .m3-chip input[type="checkbox"]{display:none}
.m3-chip-group .m3-chip:has(input:checked){background:var(--md-primary-container);color:var(--md-on-primary-container);border-color:var(--md-primary-container)}

/* Tag label for categories display */
.m3-tag{display:inline-flex;align-items:center;padding:2px 10px;border-radius:var(--md-shape-small);font:var(--md-typescale-label-small);background:var(--md-secondary-container);color:var(--md-on-secondary-container)}

/* Text Field */
.m3-text-field{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.m3-text-field label{
  font:var(--md-typescale-label-medium);
  color:var(--md-on-surface-variant);
}
.m3-text-field input,
.m3-text-field textarea{
  padding:10px 14px;
  border-radius:var(--md-shape-small);
  border:1px solid var(--md-outline);
  background:var(--md-surface-container-highest);
  color:var(--md-on-surface);
  font:var(--md-typescale-body-large);
  outline:none;
  transition:border-color var(--md-duration-short3) var(--md-easing-standard);
  width:100%;
}
.m3-text-field input:focus,
.m3-text-field textarea:focus{
  border-color:var(--md-primary);
  box-shadow:inset 0 0 0 1px var(--md-primary);
}
.m3-text-field textarea{resize:vertical;min-height:100px}

/* Table */
.m3-table-wrapper{overflow-x:auto;border-radius:var(--md-shape-medium);border:1px solid var(--md-outline-variant)}
.m3-table{
  width:100%;
  border-collapse:collapse;
  font:var(--md-typescale-body-medium);
}
.m3-table th{
  background:var(--md-surface-container-high);
  color:var(--md-on-surface-variant);
  font:var(--md-typescale-label-medium);
  text-align:left;
  padding:12px 16px;
  border-bottom:1px solid var(--md-outline-variant);
  white-space:nowrap;
}
.m3-table td{
  padding:10px 16px;
  border-bottom:1px solid rgba(73,69,79,.4);
  vertical-align:middle;
}
.m3-table tr:last-child td{border-bottom:none}
.m3-table tr:hover td{background:rgba(208,188,255,.04)}
.m3-table tr.clickable{cursor:pointer}
.m3-table tr.clickable:hover td{background:rgba(208,188,255,.08)}

/* Table header filter */
.th-filter{position:relative;cursor:default;user-select:none}
.th-filter:hover{color:var(--md-on-surface)}
.th-filter-icon{font-size:16px;vertical-align:middle;margin-left:2px;cursor:pointer;transition:transform var(--md-duration-short3)}
.th-filter.open .th-filter-icon{transform:rotate(180deg)}

/* Sortable header */
.th-sortable{cursor:pointer;user-select:none;white-space:nowrap}
.th-sortable:hover{color:var(--md-on-surface)}
.th-sort-icon{font-size:16px;vertical-align:middle;margin-left:2px;transition:color var(--md-duration-short3)}
.th-sort-icon.active{color:var(--md-primary);font-variation-settings:'FILL' 1}

/* Popover */
.m3-popover{
  display:none;
  position:absolute;top:100%;left:0;z-index:100;
  min-width:140px;
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-small);
  box-shadow:var(--md-elevation-3,0 4px 8px 3px rgba(0,0,0,.35));
  border:1px solid var(--md-outline-variant);
  padding:4px 0;
  overflow:hidden;
}
.th-filter.open .m3-popover{display:block}
.m3-popover-item{
  padding:8px 16px;
  font:var(--md-typescale-label-medium);
  color:var(--md-on-surface-variant);
  cursor:pointer;
  white-space:nowrap;
  transition:background var(--md-duration-short3);
}
.m3-popover-item:hover{background:rgba(208,188,255,.12)}
.m3-popover-item.active{background:var(--md-secondary-container);color:var(--md-on-secondary-container)}

/* Switch */
.m3-switch-wrapper{display:flex;align-items:center;gap:12px}
.m3-switch{position:relative;display:inline-block;width:52px;height:32px}
.m3-switch input{opacity:0;width:0;height:0}
.m3-switch .slider{
  position:absolute;cursor:pointer;
  inset:0;
  background:var(--md-surface-container-highest);
  border-radius:16px;
  border:2px solid var(--md-outline);
  transition:all var(--md-duration-short4) var(--md-easing-standard);
}
.m3-switch .slider::before{
  content:'';
  position:absolute;
  height:16px;width:16px;
  left:6px;bottom:6px;
  background:var(--md-outline);
  border-radius:50%;
  transition:all var(--md-duration-short4) var(--md-easing-standard);
}
.m3-switch input:checked + .slider{
  background:var(--md-primary);
  border-color:var(--md-primary);
}
.m3-switch input:checked + .slider::before{
  transform:translateX(20px);
  background:var(--md-on-primary);
}
.m3-switch input:focus-visible + .slider{outline:2px solid var(--md-primary);outline-offset:2px}
.m3-switch-label{font:var(--md-typescale-body-medium);color:var(--md-on-surface)}

/* Dialog */
.m3-dialog-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  z-index:200;
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:0;
  pointer-events:none;
  transition:opacity var(--md-duration-medium1) var(--md-easing-standard);
}
.m3-dialog-overlay.open{opacity:1;pointer-events:auto}
.m3-dialog{
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-extra-large);
  padding:24px;
  min-width:320px;
  max-width:560px;
  width:90vw;
  max-height:85vh;
  overflow-y:auto;
  box-shadow:var(--md-elevation-3);
  transform:scale(.95);
  transition:transform var(--md-duration-medium1) var(--md-easing-emphasized);
}
.m3-dialog-overlay.open .m3-dialog{transform:scale(1)}
.m3-dialog.wide{max-width:800px}

/* Bug 详情弹窗（特大窗口，左右分栏，固定头尾） */
.bug-detail-dialog{
  max-width:1100px;
  width:95vw;
  max-height:92vh;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  padding:0;
  border-radius:var(--md-shape-extra-large);
}
.bug-detail-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 24px;
  flex-shrink:0;
  border-bottom:1px solid var(--md-outline-variant);
}
.bug-detail-header .m3-dialog-title{margin-bottom:0}
.bug-detail-hint{
  padding:8px 24px;
  font:var(--md-typescale-label-medium);
  color:var(--md-on-surface-variant);
  background:var(--md-surface-container-high);
  display:flex;align-items:center;gap:8px;
  flex-shrink:0;
}
.bug-detail-hint-loggedin{
  background:var(--md-tertiary-container);
  color:var(--md-on-tertiary-container);
}
.bug-detail-body{
  flex:1;
  display:flex;
  gap:0;
  overflow:hidden;
  min-height:0;
}
.bug-detail-left{
  flex:1;
  overflow-y:auto;
  padding:16px 20px 16px 24px;
  min-width:0;
}
.bug-detail-right{
  flex:1;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  padding:16px 24px 16px 20px;
  border-left:1px solid var(--md-outline-variant);
  background:var(--md-surface-container-low);
  min-width:0;
}
.bug-detail-footer{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-shrink:0;
  padding:12px 24px;
  gap:8px;
  border-top:1px solid var(--md-outline-variant);
  flex-wrap:wrap;
}
.bug-detail-footer > div{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
/* 设备信息条 */
.bug-detail-device-bar{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  padding:8px 12px;
  margin:10px 0;
  background:var(--md-surface-container-low);
  border-radius:var(--md-shape-small);
  font-size:12px;
}
.bug-detail-device-bar span{color:var(--md-on-surface-variant);font-size:10px;display:block}
.bug-detail-device-bar strong{color:var(--md-on-surface);font-size:13px}
/* 详细描述区域 */
.bug-detail-desc{
  margin-top:16px;
}
.bug-detail-desc h3{
  font:var(--md-typescale-title-medium);
  color:var(--md-on-surface);
  margin-bottom:10px;
  padding-bottom:6px;
  border-bottom:1px solid var(--md-outline-variant);
}
.bug-detail-desc-content{
  font:var(--md-typescale-body-large);
  line-height:1.8;
  color:var(--md-on-surface);
}
  font:var(--md-typescale-headline-small);
  color:var(--md-on-surface);
  margin-bottom:8px;
}
.m3-dialog-body{
  font:var(--md-typescale-body-medium);
  color:var(--md-on-surface-variant);
  margin-bottom:20px;
}
.m3-dialog-actions{
  display:flex;
  justify-content:flex-end;
  gap:8px;
}

/* Snackbar / Toast */
.m3-snackbar{
  position:fixed;
  bottom:24px;
  left:50%;
  transform:translateX(-50%) translateY(100px);
  background:var(--md-inverse-surface, #2B2930);
  color:var(--md-inverse-on-surface, #E6E1E5);
  padding:12px 20px;
  border-radius:var(--md-shape-small);
  box-shadow:var(--md-elevation-3);
  font:var(--md-typescale-body-medium);
  display:flex;
  align-items:center;
  gap:12px;
  z-index:300;
  opacity:0;
  pointer-events:none;
  transition:all var(--md-duration-medium1) var(--md-easing-standard);
  max-width:90vw;
}
.m3-snackbar.show{
  opacity:1;
  transform:translateX(-50%) translateY(0);
  pointer-events:auto;
}
.m3-snackbar .snackbar-action{
  color:var(--md-primary);
  font:var(--md-typescale-label-large);
  cursor:pointer;
  white-space:nowrap;
  background:none;border:none;
}

/* Chip Filters */
.m3-chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.m3-filter-row{display:flex;align-items:center;gap:8px}
.m3-filter-label{font:var(--md-typescale-label-medium);color:var(--md-on-surface-variant);white-space:nowrap;min-width:2.5em}

/* Search Bar */
.m3-search-bar{
  display:flex;
  align-items:center;
  gap:8px;
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-full);
  padding:4px 8px 4px 20px;
  border:1px solid var(--md-outline-variant);
  transition:border-color var(--md-duration-short3);
  max-width:360px;
}
.m3-search-bar:focus-within{border-color:var(--md-primary)}
.m3-search-bar input{
  flex:1;border:none;outline:none;background:transparent;
  color:var(--md-on-surface);font:var(--md-typescale-body-large);
}
.m3-search-bar .search-icon{color:var(--md-on-surface-variant)}

/* Kanban Board */
.m3-kanban{display:flex;gap:20px;overflow-x:auto;padding-bottom:16px;min-height:400px;align-items:flex-start}
.m3-kanban-column{
  flex:0 0 300px;
  background:var(--md-surface-container-low);
  border-radius:var(--md-shape-large);
  padding:12px;
  display:flex;flex-direction:column;
  gap:8px;
  overflow-y:auto;
  scrollbar-width:none;
}
.m3-kanban-column::-webkit-scrollbar{display:none}
.m3-kanban-column-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:4px 8px;
  font:var(--md-typescale-title-small);
  color:var(--md-on-surface);
}
.m3-kanban-column-header .col-count{
  background:var(--md-surface-container-highest);
  padding:2px 10px;
  border-radius:var(--md-shape-full);
  font:var(--md-typescale-label-small);
}
.m3-kanban-card{
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-medium);
  padding:12px;
  cursor:pointer;
  transition:box-shadow var(--md-duration-short3);
  border-left:3px solid var(--md-primary);
}
.m3-kanban-card:hover{box-shadow:var(--md-elevation-2)}
.m3-kanban-card .card-title{font:var(--md-typescale-title-small);margin-bottom:4px}
.m3-kanban-card .card-preview{font:var(--md-typescale-body-small);color:var(--md-on-surface-variant);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.m3-kanban-card .card-meta{display:flex;justify-content:space-between;align-items:center;margin-top:8px;font:var(--md-typescale-label-small);color:var(--md-on-surface-variant)}
.m3-kanban-card .card-actions{display:flex;gap:4px}

/* Kanban Drag & Drop */
.m3-kanban-card { position: relative; }
.m3-kanban-card .drag-handle {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    cursor: grab;
    color: var(--md-outline);
    opacity: 0;
    transition: opacity var(--md-duration-short3);
    z-index: 2;
}
.m3-kanban-card:hover .drag-handle {
    opacity: 1;
}
.m3-kanban-card .drag-handle:active {
    cursor: grabbing;
}
.m3-kanban-card.dragging {
    opacity: 0.4;
}

/* 拖拽幽灵 */
.drag-ghost {
    border-radius: var(--md-shape-medium);
    background: var(--md-surface-container-high);
    border-left: 3px solid var(--md-primary);
    padding: 12px;
    pointer-events: none !important;
    z-index: 9999 !important;
}
.drag-ghost .drag-handle {
    display: none;
}
.drag-ghost .card-actions {
    display: none;
}

/* 列高亮 */
.m3-kanban-column.drag-over {
    background: var(--md-surface-container-high);
    box-shadow: inset 0 0 0 2px var(--md-primary);
    transition: all var(--md-duration-short3) var(--md-easing-standard);
}

/* 插入指示器 */
.drag-insert-indicator {
    height: 3px;
    background: var(--md-primary);
    border-radius: 2px;
    margin: 4px 0;
    animation: insertPulse 0.8s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(208, 188, 255, 0.5);
}
@keyframes insertPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.m3-kanban-add-col{
  flex:0 0 300px;
  background:transparent;
  border:2px dashed var(--md-outline-variant);
  border-radius:var(--md-shape-large);
  display:flex;align-items:center;justify-content:center;
  padding:24px;
  cursor:pointer;
  color:var(--md-on-surface-variant);
  gap:8px;
  transition:all var(--md-duration-short3);
}
.m3-kanban-add-col:hover{border-color:var(--md-primary);color:var(--md-primary)}

/* Empty State */
.m3-empty-state{
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  padding:48px 24px;
  text-align:center;
  color:var(--md-on-surface-variant);
  width:100%;
}
td .m3-empty-state{padding:32px 24px}
.m3-empty-state .empty-icon{font-size:64px;margin-bottom:16px;opacity:.5}
.m3-empty-state .empty-title{font:var(--md-typescale-title-large);margin-bottom:8px}
.m3-empty-state .empty-desc{font:var(--md-typescale-body-medium)}

/* Toolbar */
.m3-toolbar{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:20px;
  flex-wrap:wrap;
}

/* Pagination */
.m3-pagination{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:4px;
  margin-top:16px;
}
.m3-pagination .page-btn{
  width:36px;height:36px;
  border-radius:var(--md-shape-full);
  border:none;background:transparent;
  color:var(--md-on-surface-variant);
  cursor:pointer;
  font:var(--md-typescale-label-medium);
  transition:background var(--md-duration-short3);
}
.m3-pagination .page-btn:hover{background:rgba(208,188,255,.08)}
.m3-pagination .page-btn.active{background:var(--md-primary-container);color:var(--md-on-primary-container)}
.m3-pagination .page-btn:disabled{opacity:.38;cursor:not-allowed}
.m3-pagination .page-info{
  font:var(--md-typescale-label-medium);
  color:var(--md-on-surface-variant);
  padding:0 12px;
}

/* Badge / Dot */
.m3-badge{
  width:8px;height:8px;
  border-radius:50%;
  display:inline-block;
}
.m3-badge.error{background:var(--md-error)}
.m3-badge.success{background:#81C784}
.m3-badge.warning{background:#FFD54F}

/* Image Preview */
.m3-image-grid{display:flex;gap:8px;flex-wrap:wrap}
.m3-image-thumb{
  width:120px;height:120px;
  object-fit:cover;
  border-radius:var(--md-shape-small);
  cursor:pointer;
  border:1px solid var(--md-outline-variant);
  transition:transform var(--md-duration-short3);
}
.m3-image-thumb:hover{transform:scale(1.05)}
/* 视频缩略图播放图标 */
.m3-video-play-badge{
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  width:36px;height:36px;
  border-radius:50%;
  background:rgba(0,0,0,.65);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  pointer-events:none;
  z-index:1;
  backdrop-filter:blur(4px);
}
.m3-video-thumb{border-color:var(--md-primary)}
.m3-image-delete-btn{
    position:absolute;
    top:4px;right:4px;
    width:24px;height:24px;
    border-radius:50%;
    background:var(--md-error);
    color:var(--md-on-error);
    border:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:center;
    opacity:0;
    transition:opacity var(--md-duration-short3);
    z-index:2;
}
.m3-image-thumb-wrap:hover .m3-image-delete-btn{opacity:1}

/* Image Viewer (Material 3 Lightbox) */
.m3-image-viewer-overlay{
  position:fixed;
  inset:0;
  z-index:400;
  background:rgba(0,0,0,.92);
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:0;
  pointer-events:none;
  transition:opacity var(--md-duration-medium2) var(--md-easing-standard);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
}
.m3-image-viewer-overlay.open{
  opacity:1;
  pointer-events:auto;
}
.m3-image-viewer-stage{
  display:flex;
  align-items:center;
  justify-content:center;
  max-width:90vw;
  max-height:90vh;
}
.m3-image-viewer-stage img{
  max-width:90vw;
  max-height:85vh;
  object-fit:contain;
  border-radius:var(--md-shape-medium);
  box-shadow:0 8px 40px rgba(0,0,0,.5);
  transition:opacity var(--md-duration-short4) var(--md-easing-standard);
  user-select:none;
  -webkit-user-drag:none;
}
/* 关闭按钮 */
.m3-image-viewer-close{
  position:fixed;
  top:16px;
  right:16px;
  width:48px;height:48px;
  border-radius:50%;
  border:none;
  background:rgba(255,255,255,.08);
  color:#FFFFFF;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:10;
  transition:background var(--md-duration-short3);
}
.m3-image-viewer-close:hover{
  background:rgba(255,255,255,.16);
}
/* 导航按钮 */
.m3-image-viewer-nav{
  position:fixed;
  top:50%;
  transform:translateY(-50%);
  width:52px;height:52px;
  border-radius:50%;
  border:none;
  background:rgba(255,255,255,.08);
  color:#FFFFFF;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:10;
  transition:background var(--md-duration-short3),transform var(--md-duration-short3);
}
.m3-image-viewer-nav:hover{
  background:rgba(255,255,255,.16);
  transform:translateY(-50%) scale(1.08);
}
.m3-image-viewer-prev{left:16px}
.m3-image-viewer-next{right:16px}
/* 计数器 */
.m3-image-viewer-counter{
  position:fixed;
  bottom:24px;
  left:50%;
  transform:translateX(-50%);
  background:rgba(0,0,0,.6);
  color:#FFFFFF;
  padding:6px 18px;
  border-radius:var(--md-shape-full);
  font:var(--md-typescale-label-medium);
  letter-spacing:1px;
  z-index:10;
  pointer-events:none;
}

/* Image Viewer mobile */
@media(max-width:768px){
  .m3-image-viewer-close{
    top:8px;right:8px;
    width:40px;height:40px;
  }
  .m3-image-viewer-nav{
    width:40px;height:40px;
  }
  .m3-image-viewer-prev{left:6px}
  .m3-image-viewer-next{right:6px}
  .m3-image-viewer-stage img{
    max-width:96vw;
    max-height:80vh;
  }
  .m3-image-viewer-counter{
    bottom:16px;
    padding:4px 14px;
    font-size:12px;
  }
}

/* Image upload zone */
.m3-upload-zone{
  border:2px dashed var(--md-outline-variant);
  border-radius:var(--md-shape-medium);
  padding:32px;
  text-align:center;
  cursor:pointer;
  transition:all var(--md-duration-short3);
  color:var(--md-on-surface-variant);
  position:relative;
}
.m3-upload-zone:hover,.m3-upload-zone.dragover{
  border-color:var(--md-primary);
  background:rgba(208,188,255,.05);
}
.m3-upload-zone .upload-icon{font-size:48px;margin-bottom:8px}
.m3-upload-zone input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer}

/* Markdown Editor */
.m3-md-editor{display:flex;flex-direction:column;gap:12px}
.m3-md-toolbar{
  display:flex;flex-wrap:wrap;align-items:center;gap:2px;
  padding:6px 8px;
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-small);
  border:1px solid var(--md-outline-variant);
}
.m3-md-btn{
  width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  border:none;border-radius:var(--md-shape-small);
  background:transparent;color:var(--md-on-surface-variant);
  cursor:pointer;
  transition:background var(--md-duration-short3),color var(--md-duration-short3);
}
.m3-md-btn:hover{background:rgba(208,188,255,.12);color:var(--md-on-surface)}
.m3-md-btn:active{background:var(--md-secondary-container)}
.m3-md-btn .material-symbols-rounded{font-size:18px}
.m3-md-sep{width:1px;height:20px;background:var(--md-outline-variant);margin:0 4px}
.m3-md-editor textarea{
  min-height:200px;
  padding:14px;
  background:var(--md-surface-container-highest);
  border:1px solid var(--md-outline);
  border-radius:var(--md-shape-medium);
  color:var(--md-on-surface);
  font-family:'Cascadia Code','Fira Code',monospace;
  font-size:14px;
  line-height:1.6;
  resize:vertical;
  outline:none;
}
.m3-md-editor textarea:focus{border-color:var(--md-primary)}
.m3-md-preview{
  padding:16px;
  background:var(--md-surface-container-low);
  border-radius:var(--md-shape-medium);
  border:1px solid var(--md-outline-variant);
  min-height:100px;
  color:var(--md-on-surface);
  line-height:1.7;
}
.m3-md-preview h1,.m3-md-preview h2,.m3-md-preview h3{color:var(--md-primary);margin:12px 0 8px}
.m3-md-preview code{background:var(--md-surface-container-highest);padding:2px 6px;border-radius:4px;font-size:.9em}
.m3-md-preview pre{background:var(--md-surface-container-highest);padding:12px;border-radius:8px;overflow-x:auto}
.m3-md-preview blockquote{border-left:3px solid var(--md-primary);padding-left:12px;color:var(--md-on-surface-variant)}
.m3-md-preview ul,.m3-md-preview ol{padding-left:20px}

/* Bug 详情中的 Markdown 渲染 */
.md-content{line-height:1.7}
.md-content h1,.md-content h2,.md-content h3{color:var(--md-primary);margin:12px 0 8px}
.md-content code{background:var(--md-surface-container-highest);padding:2px 6px;border-radius:4px;font-size:.9em}
.md-content pre{background:var(--md-surface-container-highest);padding:12px;border-radius:8px;overflow-x:auto}
.md-content blockquote{border-left:3px solid var(--md-primary);padding-left:12px;color:var(--md-on-surface-variant)}
.md-content ul,.md-content ol{padding-left:20px}
.md-content p{margin:4px 0}

/* Detail view */
.m3-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.m3-detail-item{display:flex;flex-direction:column;gap:2px}
.m3-detail-item .d-label{font:var(--md-typescale-label-small);color:var(--md-on-surface-variant)}
.m3-detail-item .d-value{font:var(--md-typescale-body-medium);color:var(--md-on-surface)}
.m3-detail-full{grid-column:1/-1}

/* 评论 Markdown 工具栏（紧凑版） */
.comment-md-toolbar{
  display:flex;
  align-items:center;
  gap:1px;
  padding:2px 4px;
  margin-bottom:6px;
  background:var(--md-surface-container-highest);
  border-radius:var(--md-shape-extra-small);
}
.comment-md-preview{
  padding:8px 10px;
  margin-top:6px;
  background:var(--md-surface-container-lowest);
  border-radius:var(--md-shape-extra-small);
  border:1px solid var(--md-outline-variant);
  font-size:13px;
  line-height:1.6;
  max-height:120px;
  overflow-y:auto;
}

/* Comment section */
.m3-comment-list{display:flex;flex-direction:column;gap:12px;margin-top:16px}
.m3-comment{
  background:var(--md-surface-container-low);
  border-radius:var(--md-shape-medium);
  padding:12px 16px;
}
.m3-comment .comment-header{
  display:flex;align-items:center;gap:8px;
  margin-bottom:6px;
}
.m3-comment .comment-author{font:var(--md-typescale-label-large);color:var(--md-primary)}
.m3-comment .comment-time{font:var(--md-typescale-label-small);color:var(--md-on-surface-variant)}
.m3-comment .comment-body{font:var(--md-typescale-body-medium);color:var(--md-on-surface);white-space:pre-wrap}

/* 留言角色标签 */
.comment-badge{
  display:inline-flex;
  align-items:center;
  padding:1px 7px;
  border-radius:var(--md-shape-extra-small);
  font:var(--md-typescale-label-small);
  font-size:10px;
  font-weight:500;
  vertical-align:middle;
  margin-left:4px;
}
.comment-badge-dev{
  background:var(--md-primary-container);
  color:var(--md-on-primary-container);
}
.comment-badge-reporter{
  background:var(--md-tertiary-container);
  color:var(--md-on-tertiary-container);
}

/* Comment Write Dialog */
.comment-write-dialog .m3-md-editor textarea {
    min-height: 180px;
    font-size: 14px;
    line-height: 1.7;
}
.comment-write-dialog .m3-md-preview {
    min-height: 80px;
    max-height: 200px;
    overflow-y: auto;
}

/* Comment Input (M3 Filled Text Field) */
.m3-comment-input-area{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.m3-text-field-filled{
  background:var(--md-surface-container-highest);
  border-radius:var(--md-shape-small) var(--md-shape-small) 0 0;
  border-bottom:1px solid var(--md-on-surface-variant);
  padding:8px 14px 6px;
  transition:all var(--md-duration-short3) var(--md-easing-standard);
}
.m3-text-field-filled:focus-within{
  border-bottom-color:var(--md-primary);
  border-bottom-width:2px;
  background:var(--md-surface-container-highest);
}
.m3-text-field-filled label{
  display:block;
  font:var(--md-typescale-label-small);
  color:var(--md-on-surface-variant);
  margin-bottom:4px;
  transition:color var(--md-duration-short3);
}
.m3-text-field-filled:focus-within label{
  color:var(--md-primary);
}
.m3-text-field-filled textarea{
  width:100%;
  border:none;
  outline:none;
  background:transparent;
  color:var(--md-on-surface);
  font:var(--md-typescale-body-medium);
  resize:vertical;
  min-height:56px;
  padding:0;
  line-height:1.5;
}
.m3-text-field-filled textarea::placeholder{
  color:var(--md-on-surface-variant);
  opacity:0.6;
}
.m3-comment-input-actions{
  display:flex;
  justify-content:flex-end;
  gap:8px;
}

/* Duplicate Bug Selector */
.m3-duplicate-item{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:10px 14px;
  border-radius:var(--md-shape-small);
  cursor:pointer;
  transition:background var(--md-duration-short3);
  border:1px solid transparent;
}
.m3-duplicate-item:hover{
  background:var(--md-surface-container-highest);
}
.m3-duplicate-item.selected{
  background:var(--md-secondary-container);
  border-color:var(--md-primary);
}
.dup-item-main{
  display:flex;
  align-items:center;
  gap:8px;
}
.dup-item-id{
  font:var(--md-typescale-label-medium);
  color:var(--md-primary);
  font-family:monospace;
  min-width:40px;
}
.dup-item-title{
  font:var(--md-typescale-body-medium);
  color:var(--md-on-surface);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.dup-item-meta{
  display:flex;
  align-items:center;
  gap:10px;
  padding-left:48px;
  font:var(--md-typescale-label-small);
  color:var(--md-on-surface-variant);
}
.dup-item-meta .m3-chip{
  font-size:10px;
  padding:2px 8px;
}

/* Settings Form */
.m3-settings-section{
  background:var(--md-surface-container-low);
  border-radius:var(--md-shape-large);
  padding:20px;
  margin-bottom:16px;
}
.m3-settings-section h3{
  font:var(--md-typescale-title-medium);
  color:var(--md-on-surface);
  margin-bottom:16px;
  padding-bottom:12px;
  border-bottom:1px solid var(--md-outline-variant);
}
.m3-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.m3-form-row{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}
.m3-form-row label{font:var(--md-typescale-label-medium);color:var(--md-on-surface-variant)}
.m3-form-row input{
  padding:10px 14px;
  border-radius:var(--md-shape-small);
  border:1px solid var(--md-outline);
  background:var(--md-surface-container-highest);
  color:var(--md-on-surface);
  font:var(--md-typescale-body-large);
  outline:none;
}
.m3-form-row input:focus{border-color:var(--md-primary)}

/* Global Material 3 select */
select{
  appearance:none;
  -webkit-appearance:none;
  padding:10px 36px 10px 14px;
  border-radius:var(--md-shape-small);
  border:1px solid var(--md-outline);
  background:var(--md-surface-container-highest);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%23938F99' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 8px center;
  background-size:20px;
  color:var(--md-on-surface);
  font:var(--md-typescale-body-medium);
  outline:none;
  cursor:pointer;
  transition:border-color var(--md-duration-short3), box-shadow var(--md-duration-short3);
  height:44px;
  box-sizing:border-box;
}
select:hover{border-color:var(--md-on-surface-variant)}
select:focus{
  border-color:var(--md-primary);
  box-shadow:inset 0 0 0 1px var(--md-primary);
}
select option{
  background:var(--md-surface-container-high);
  color:var(--md-on-surface);
  padding:8px;
}

/* Small select for table cells */
.m3-select-sm{
  padding:4px 28px 4px 8px;
  font:var(--md-typescale-label-small);
  border-radius:6px;
  background-position:right 4px center;
}

/* Handler list */
.m3-handler-list{display:flex;flex-direction:column;gap:8px}
.m3-handler-item{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 16px;
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-small);
}
.m3-handler-item .handler-info{display:flex;flex-direction:column}
.m3-handler-item .handler-name{font:var(--md-typescale-title-small)}
.m3-handler-item .handler-uid{font:var(--md-typescale-body-small);color:var(--md-on-surface-variant)}
.m3-handler-add{display:flex;gap:8px;margin-top:12px;align-items:flex-end}

/* Login */
.m3-login-form{display:flex;flex-direction:column;gap:16px}

/* ================================================================
   RESPONSIVE - 移动端适配
   ================================================================ */

/* --- 遮罩层（移动端侧边栏展开时覆盖主内容） --- */
.m3-sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--md-duration-medium2) var(--md-easing-standard);
}
.m3-sidebar-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* 平板 / 小屏笔记本 (≤1024px) */
@media(max-width:1024px){
  .m3-content{
    padding:16px;
  }
  .m3-dialog.wide{
    max-width:95vw;
  }
  .m3-dialog{
    width:95vw;
    padding:20px;
  }
  .m3-chart-grid{
    grid-template-columns:1fr;
  }
  .m3-handler-stats{
    grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  }
  .m3-topbar{
    padding:0 16px;
  }
}

/* 手机 (≤768px) */
@media(max-width:768px){
  /* --- 侧边栏 --- */
  .m3-sidebar{
    transform:translateX(-100%);
    box-shadow:var(--md-elevation-3);
    z-index:110;
    width:min(280px,85vw);
  }
  .m3-sidebar.open{
    transform:translateX(0);
  }
  .m3-main{
    margin-left:0;
  }

  /* 移动端在 Topbar 显示提交按钮和用户头像 */
  #btnOpenSubmitTop {
    display: flex;
  }
  .m3-topbar-user-mobile {
    display: flex;
  }
  /* 移动端侧边栏显示关闭按钮 */
  .m3-sidebar-close-btn.m3-btn-icon {
    display: flex;
  }
  /* 移动端侧边栏隐藏用户信息和提交页面按钮（已在 Topbar 显示） */
  .m3-sidebar-footer .m3-sidebar-user,
  .m3-sidebar-footer > .m3-btn:first-child {
    display: none;
  }

  /* --- Topbar --- */
  .m3-topbar{
    height:56px;
    padding:0 12px;
  }
  .m3-topbar-title{
    font:var(--md-typescale-title-medium);
  }
  .m3-content{
    padding:12px;
    max-height:calc(100vh - 56px);
  }

  /* --- 统计卡片 --- */
  .m3-stat-grid{
    grid-template-columns:repeat(2,1fr);
    gap:10px;
  }
  .m3-stat-card{
    padding:14px;
  }
  .m3-stat-card .stat-icon{
    width:40px;height:40px;
    margin-bottom:8px;
    font-size:20px;
  }
  .m3-stat-card .stat-value{
    font:var(--md-typescale-headline-large);
  }

  /* --- 图表 --- */
  .m3-chart-grid{
    grid-template-columns:1fr;
    gap:12px;
  }
  .m3-chart-card{
    padding:14px;
  }
  .m3-chart-card canvas{
    max-height:220px;
  }

  /* --- 表格 --- */
  .m3-table-wrapper{
    border-radius:var(--md-shape-small);
    margin:0 -12px;
    border-left:none;
    border-right:none;
  }
  .m3-table th,
  .m3-table td{
    padding:8px 10px;
    font-size:12px;
  }
  .m3-table th{
    white-space:nowrap;
  }
  /* 表格横向滚动提示 */
  .m3-table-wrapper::after{
    content:'';
    position:absolute;
    right:0;top:0;bottom:0;
    width:20px;
    background:linear-gradient(to right,transparent,var(--md-surface));
    pointer-events:none;
  }

  /* --- 工具栏 --- */
  .m3-toolbar{
    gap:8px;
    margin-bottom:12px;
  }
  .m3-search-bar{
    max-width:100%;
    width:100%;
  }
  .m3-btn{
    padding:8px 16px;
    font:var(--md-typescale-label-medium);
  }

  /* --- Dialog --- */
  .m3-dialog{
    width:95vw;
    max-width:95vw;
    padding:20px;
    border-radius:var(--md-shape-large);
  }
  .m3-dialog.wide{
    max-width:95vw;
  }
  .m3-dialog-title{
    font:var(--md-typescale-title-large);
  }
  .m3-dialog-body{
    margin-bottom:14px;
  }
  .m3-dialog-actions{
    flex-wrap:wrap;
    gap:8px;
  }
  .m3-dialog-actions .m3-btn{
    flex:1;
    min-width:0;
  }

  /* --- Bug 详情 --- */
  .m3-detail-grid{
    grid-template-columns:1fr;
    gap:8px;
  }
  .m3-image-thumb{
    width:80px;height:80px;
  }

  /* --- 表单 --- */
  .m3-form-grid{
    grid-template-columns:1fr;
  }
  .m3-form-row{
    margin-bottom:8px;
  }

  /* --- 设置页 --- */
  .m3-settings-section{
    padding:14px;
  }
  .m3-handler-add{
    flex-direction:column;
    gap:8px;
  }
  .m3-handler-add .m3-btn{
    align-self:stretch;
  }

  /* --- 看板 --- */
  #page-todo.active .m3-kanban{overflow-y:auto;scrollbar-width:none}
  #page-todo.active .m3-kanban::-webkit-scrollbar{display:none}
  .m3-kanban{
    flex-direction:column;
    gap:12px;
    padding-bottom:24px;
  }
  .m3-kanban-column{
    flex:none;
    max-height:none;
    min-width:0;
    overflow-y:visible;
  }
  .m3-kanban-add-col{
    flex:auto;
    min-height:80px;
  }
  .m3-kanban-card{
    padding:10px;
  }

  /* --- 处理人统计 --- */
  .m3-handler-stats{
    grid-template-columns:1fr;
  }
  .m3-handler-stat-card .hs-detail{
    flex-wrap:wrap;
    gap:6px;
  }

  /* --- 操作日志 --- */
  .m3-log-list{
    max-height:350px;
  }
  .m3-log-item{
    flex-wrap:wrap;
    padding:8px 10px;
  }
  .m3-log-item .log-meta{
    width:100%;
    text-align:left;
    margin-top:4px;
    font-size:10px;
  }

  /* --- 分页 --- */
  .m3-pagination .page-btn{
    width:32px;height:32px;
  }

  /* --- 留言区 --- */
  .m3-comment-input-area{
    gap:8px;
  }
}

/* 小屏手机 (≤480px) */
@media(max-width:480px){
  /* Topbar 提交按钮仅显示图标 */
  .m3-topbar-btn-label {
    display: none;
  }
  #btnOpenSubmitTop {
    padding: 8px;
    min-width: 0;
  }

  .m3-stat-grid{
    grid-template-columns:1fr;
    gap:8px;
  }
  .m3-content{
    padding:8px;
  }
  .m3-topbar{
    padding:0 8px;
  }
  .m3-topbar-title{
    font:var(--md-typescale-title-small);
  }
  .m3-btn{
    padding:8px 14px;
    font:var(--md-typescale-label-small);
    gap:4px;
  }
  .m3-btn .btn-icon{
    font-size:16px;
  }
  .m3-btn-icon{
    width:36px;height:36px;
  }

  /* 表格在极小屏幕上更紧凑 */
  .m3-table th,
  .m3-table td{
    padding:6px 8px;
    font-size:11px;
  }

  /* Dialog 满屏 */
  .m3-dialog{
    width:100vw;
    max-width:100vw;
    max-height:100vh;
    border-radius:0;
    padding:16px;
  }
  .m3-dialog.wide{
    max-width:100vw;
    border-radius:0;
  }
  /* Bug 详情弹窗：移动端回退竖排滚动 */
  .bug-detail-dialog{
    max-width:100vw;
    border-radius:0;
  }
  .bug-detail-body{
    flex-direction:column;
    overflow-y:auto;
  }
  .bug-detail-left{
    overflow-y:visible;
    padding:12px 16px;
  }
  .bug-detail-right{
    flex:none;
    width:100%;
    border-left:none;
    border-top:1px solid var(--md-outline-variant);
    overflow-y:visible;
    padding:12px 16px;
  }
  .bug-detail-header{padding:14px 16px 10px}
  .bug-detail-hint{padding:6px 16px;font-size:12px}
  .bug-detail-footer{padding:10px 16px}
  .bug-detail-footer > div{flex:1;justify-content:center}

  /* 看板卡片更紧凑 */
  .m3-kanban-column{
    padding:8px;
    border-radius:var(--md-shape-medium);
  }
  .m3-kanban-card{
    padding:8px;
  }
  .m3-kanban-card .card-title{
    font:var(--md-typescale-label-large);
  }

  /* 图片缩略图更小 */
  .m3-image-thumb{
    width:64px;height:64px;
  }
  .m3-image-grid{
    gap:6px;
  }

  /* 统计卡片更紧凑 */
  .m3-stat-card{
    padding:10px;
  }
  .m3-stat-card .stat-icon{
    width:36px;height:36px;
    font-size:18px;
  }
  .m3-stat-card .stat-value{
    font:var(--md-typescale-headline-medium);
  }
}

/* Chart Containers */
.m3-chart-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}
.m3-chart-card{
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-large);
  padding:20px;
  box-shadow:var(--md-elevation-1);
}
.m3-chart-card h3{
  font:var(--md-typescale-title-medium);
  color:var(--md-on-surface);
  margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.m3-chart-card canvas{width:100%!important;max-height:280px}

/* Handler Stats */
.m3-handler-stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;margin-top:16px}
.m3-handler-stat-card{
  background:var(--md-surface-container-high);
  border-radius:var(--md-shape-medium);
  padding:14px 16px;
  box-shadow:var(--md-elevation-1);
}
.m3-handler-stat-card .hs-header{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:8px;
}
.m3-handler-stat-card .hs-name{font:var(--md-typescale-title-small);color:var(--md-on-surface)}
.m3-handler-stat-card .hs-link{font:var(--md-typescale-label-small);color:var(--md-primary)}
.m3-handler-stat-bar{
  height:8px;
  background:var(--md-surface-container-lowest);
  border-radius:4px;
  overflow:hidden;
  display:flex;
  margin:8px 0;
}
.m3-handler-stat-bar .bar-seg{height:100%;transition:width var(--md-duration-medium2)}
.m3-handler-stat-bar .bar-pending{background:#F2B8B5}
.m3-handler-stat-bar .bar-progress{background:#FFD54F}
.m3-handler-stat-bar .bar-fixed{background:#81C784}
.m3-handler-stat-bar .bar-cant{background:#CCC2DC}
.m3-handler-stat-bar .bar-duplicate{background:#D0BCFF}
.m3-handler-stat-card .hs-detail{
  display:flex;gap:12px;
  font:var(--md-typescale-label-small);
  color:var(--md-on-surface-variant);
}

/* Activity Logs Viewer */
.m3-log-list{max-height:500px;overflow-y:auto}
.m3-log-item{
  display:flex;align-items:flex-start;gap:12px;
  padding:10px 14px;
  border-radius:var(--md-shape-small);
  transition:background var(--md-duration-short3);
}
.m3-log-item:nth-child(even){background:rgba(208,188,255,.03)}
.m3-log-item:hover{background:rgba(208,188,255,.06)}
.m3-log-item .log-icon{
  width:32px;height:32px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;
  flex-shrink:0;
  margin-top:2px;
}
.m3-log-item .log-body{flex:1;min-width:0}
.m3-log-item .log-action{font:var(--md-typescale-label-medium);color:var(--md-on-surface)}
.m3-log-item .log-detail{font:var(--md-typescale-body-small);color:var(--md-on-surface-variant);margin-top:2px}
.m3-log-item .log-meta{
  font:var(--md-typescale-label-small);
  color:var(--md-outline);
  text-align:right;
  flex-shrink:0;
}

.log-icon-bug{background:#381E72;color:#D0BCFF}
.log-icon-settings{background:#004D40;color:#7DE0D6}
.log-icon-todo{background:#332D41;color:#CCC2DC}
.log-icon-mail{background:#1A3A1A;color:#81C784}

/* Priority indicator in table */
.priority-dot{
  display:inline-block;
  width:8px;height:8px;
  border-radius:50%;
  margin-right:6px;
  vertical-align:middle;
}
.priority-dot.urgent{background:#F2B8B5;box-shadow:0 0 6px rgba(242,184,181,.5)}
.priority-dot.high{background:#FFB74D}
.priority-dot.medium{background:#90CAF9}
.priority-dot.low{background:#A5D6A7}
.priority-dot.none{background:var(--md-outline-variant)}

/* Utility helpers */
.mt-4{margin-top:16px}
.mt-6{margin-top:24px}
.mb-4{margin-bottom:16px}
.flex{display:flex}
.flex-wrap{flex-wrap:wrap}
.gap-2{gap:8px}
.gap-3{gap:12px}
.items-center{align-items:center}
.justify-between{justify-content:space-between}
.w-full{width:100%}
.text-primary{color:var(--md-primary)}
.text-secondary{color:var(--md-on-surface-variant)}
.text-sm{font-size:12px}
.font-mono{font-family:'Cascadia Code',monospace}

/* OAuth 加载旋转动画 */
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}