/* ========================================
   Stickers CSS - 表情包页面（发现二级页）
   精致简洁 · 白底黑灰UI · 移动端用户页面
   ======================================== */

/* ---- 页面容器 ---- */
.stk-screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #fff;
  z-index: var(--z-drawer);
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.stk-screen.is-active {
  display: flex;
}

/* ---- 顶部导航栏 ---- */
.stk-nav {
  height: var(--status-bar-height);
  margin-top: var(--safe-area-top);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  background-color: #fff;
  flex-shrink: 0;
  position: relative;
}

.stk-nav__back {
  display: flex;
  align-items: center;
  color: var(--color-text-primary);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  margin-left: -8px;
  width: 32px;
}

.stk-nav__back svg {
  width: 24px;
  height: 24px;
}

.stk-nav__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.stk-nav__right {
  display: flex;
  align-items: center;
  color: var(--color-text-primary);
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  width: 32px;
  justify-content: flex-end;
}

.stk-nav__right svg {
  width: 22px;
  height: 22px;
}

/* ---- 可滚动内容区 ---- */
.stk-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: calc(24px + var(--safe-area-bottom, 0px));
}

/* ================================================
   顶部功能入口区 - 精致卡片
   ================================================ */
.stk-quick-actions {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 12px var(--spacing-lg) 4px;
}

.stk-quick-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 14px 4px 12px;
  background: var(--color-card-muted);
  border-radius: 14px;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  border: 1px solid rgba(0, 0, 0, 0.03);
}

.stk-quick-card:active {
  background-color: rgba(0, 0, 0, 0.06);
  transform: scale(0.96);
}

.stk-quick-card__icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
}

.stk-quick-card__icon svg {
  width: 22px;
  height: 22px;
}

.stk-quick-card__label {
  font-size: 11px;
  font-weight: var(--font-weight-regular);
  color: var(--color-text-primary);
  line-height: 1;
  text-align: center;
  white-space: nowrap;
}

/* ================================================
   批量导入说明卡片
   ================================================ */
.stk-import-tip {
  margin: 12px var(--spacing-lg) 4px;
  padding: 14px 16px;
  background: #fafafa;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.stk-import-tip__header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.stk-import-tip__icon {
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

.stk-import-tip__icon svg {
  width: 18px;
  height: 18px;
}

.stk-import-tip__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  flex: 1;
}

.stk-import-tip__close {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--color-text-hint);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}

.stk-import-tip__close svg {
  width: 16px;
  height: 16px;
}

.stk-import-tip__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
}

.stk-import-tip__example {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.stk-import-tip__example code {
  display: block;
  font-size: 11px;
  color: var(--color-text-secondary);
  background: rgba(0, 0, 0, 0.03);
  padding: 6px 10px;
  border-radius: 8px;
  font-family: 'SF Mono', 'Monaco', 'Menlo', monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stk-import-tip__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 18px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: #fff;
  background: var(--color-text-primary);
  border: none;
  border-radius: 20px;
  cursor: pointer;
  transition: opacity var(--transition-fast);
  font-family: var(--font-family);
}

.stk-import-tip__btn:active {
  opacity: 0.7;
}

/* ================================================
   横向分类切换栏
   ================================================ */
.stk-category-bar {
  padding: 14px 0 6px;
  position: sticky;
  top: 0;
  background: #fff;
  z-index: var(--z-content);
}

.stk-category-bar__scroll {
  display: flex;
  gap: 6px;
  padding: 0 var(--spacing-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.stk-category-bar__scroll::-webkit-scrollbar {
  display: none;
}

.stk-category-tab {
  flex-shrink: 0;
  padding: 7px 16px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-secondary);
  background: var(--color-card-muted);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-family);
  white-space: nowrap;
}

.stk-category-tab.is-active {
  color: #fff;
  background: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.stk-category-tab:not(.is-active):active {
  background: rgba(0, 0, 0, 0.08);
}

/* 用户分类标签（带常驻删除按钮） */
.stk-category-tab--user {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding-right: 8px;
}

.stk-category-tab__label {
  pointer-events: none;
}

.stk-category-tab__delete {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  font-size: 14px;
  font-weight: bold;
  line-height: 1;
  color: var(--color-text-hint);
  background: rgba(0, 0, 0, 0.06);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.stk-category-tab--user:active .stk-category-tab__delete {
  background: rgba(0, 0, 0, 0.1);
}

.stk-category-tab--user.is-active .stk-category-tab__delete {
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.2);
}

.stk-category-tab--user.is-active .stk-category-tab__delete:active {
  color: #fff;
  background: rgba(255, 255, 255, 0.35);
}

/* 新建分类 "+" 按钮 */
.stk-category-tab--add {
  padding: 7px 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-hint);
  border: 1px dashed rgba(0, 0, 0, 0.15);
  background: transparent;
}

.stk-category-tab--add svg {
  width: 16px;
  height: 16px;
}

.stk-category-tab--add:active {
  background: rgba(0, 0, 0, 0.04);
  color: var(--color-text-secondary);
}

/* ---- 新建分类弹窗 ---- */
.stk-newcat-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-action-sheet);
  display: none;
  align-items: center;
  justify-content: center;
}

.stk-newcat-overlay.is-active {
  display: flex;
}

.stk-newcat-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-overlay);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.stk-newcat-overlay.is-active .stk-newcat-mask {
  opacity: 1;
}

.stk-newcat-dialog {
  position: relative;
  width: 280px;
  background: #fff;
  border-radius: 16px;
  padding: 24px 20px 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  transform: scale(0.9);
  opacity: 0;
  transition: transform 0.25s cubic-bezier(0.32, 0.72, 0, 1), opacity 0.25s ease;
}

.stk-newcat-overlay.is-active .stk-newcat-dialog {
  transform: scale(1);
  opacity: 1;
}

.stk-newcat-dialog__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  text-align: center;
  margin-bottom: 16px;
}

.stk-newcat-dialog__input {
  width: 100%;
  padding: 10px 14px;
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: #f7f7f8;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 10px;
  outline: none;
  box-sizing: border-box;
  font-family: var(--font-family);
  transition: border-color var(--transition-fast);
}

.stk-newcat-dialog__input:focus {
  border-color: rgba(0, 0, 0, 0.18);
}

.stk-newcat-dialog__input::placeholder {
  color: var(--color-text-hint);
}

.stk-newcat-dialog__actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.stk-newcat-dialog__btn {
  flex: 1;
  padding: 10px 0;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-family: var(--font-family);
  transition: all var(--transition-fast);
  text-align: center;
}

.stk-newcat-dialog__btn--cancel {
  color: var(--color-text-primary);
  background: var(--color-card-muted);
}

.stk-newcat-dialog__btn--cancel:active {
  background: rgba(0, 0, 0, 0.08);
}

.stk-newcat-dialog__btn--confirm {
  color: #fff;
  background: var(--color-text-primary);
}

.stk-newcat-dialog__btn--confirm:active {
  opacity: 0.8;
}

/* ================================================
   表情包网格展示区
   ================================================ */
.stk-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 12px var(--spacing-lg);
}

.stk-grid-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
}

.stk-grid-item__thumb {
  width: 100%;
  aspect-ratio: 1;
  background: var(--color-card-muted);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: transform var(--transition-fast);
}

.stk-grid-item:active .stk-grid-item__thumb {
  transform: scale(0.94);
}

.stk-grid-item__thumb-emoji {
  font-size: 36px;
  line-height: 1;
}

.stk-grid-item__thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* GIF 角标 */
.stk-grid-item__badge {
  position: absolute;
  top: 4px;
  right: 4px;
  padding: 1px 5px;
  font-size: 9px;
  font-weight: var(--font-weight-medium);
  color: #fff;
  background: rgba(0, 0, 0, 0.45);
  border-radius: 4px;
  line-height: 1.4;
  letter-spacing: 0.3px;
  pointer-events: none;
}

/* 更多操作按钮 */
.stk-grid-item__name.is-editing {
  background: var(--bg-card, #fff);
  border: 1.5px solid var(--accent, #07c160);
  border-radius: 4px;
  padding: 1px 4px;
  outline: none;
  cursor: text;
  min-width: 40px;
}

.stk-grid-item__more {
  position: absolute;
  bottom: 22px;
  right: 2px;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  border: none;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-fast);
  color: var(--color-text-secondary);
  padding: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.stk-grid-item:hover .stk-grid-item__more,
.stk-grid-item:active .stk-grid-item__more {
  opacity: 1;
}

.stk-grid-item__more svg {
  width: 14px;
  height: 14px;
}

/* ================================================
   单个表情包 Context Menu（浮动操作菜单）
   ================================================ */
.stk-context-menu {
  position: fixed;
  z-index: calc(var(--z-action-sheet) + 10);
  min-width: 120px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.14), 0 0 0 0.5px rgba(0, 0, 0, 0.06);
  padding: 4px 0;
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.15s ease, transform 0.15s ease;
  pointer-events: none;
}

.stk-context-menu.is-visible {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.stk-context-menu__item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 16px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-primary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-family);
  transition: background-color var(--transition-fast);
  white-space: nowrap;
}

.stk-context-menu__item:active {
  background: rgba(0, 0, 0, 0.04);
}

.stk-context-menu__item--danger {
  color: #e53935;
}

.stk-context-menu__item-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stk-context-menu__item-icon svg {
  width: 16px;
  height: 16px;
}

/* Context menu 背景遮罩（透明，用于捕获点击关闭） */
.stk-context-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: calc(var(--z-action-sheet) + 9);
  background: transparent;
}

/* ================================================
   批量管理模式 - 操作栏
   ================================================ */
.stk-batch-bar {
  position: sticky;
  top: 0;
  z-index: calc(var(--z-content) + 1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px var(--spacing-lg);
  background: #fff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.stk-batch-bar__left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.stk-batch-bar__select-all {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  background: var(--color-card-muted);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-family: var(--font-family);
  transition: all var(--transition-fast);
}

.stk-batch-bar__select-all:active {
  background: rgba(0, 0, 0, 0.08);
}

.stk-batch-bar__select-all svg {
  width: 16px;
  height: 16px;
}

.stk-batch-bar__count {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.stk-batch-bar__right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.stk-batch-bar__delete {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 16px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: #fff;
  background: #e53935;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-family: var(--font-family);
  transition: opacity var(--transition-fast);
}

.stk-batch-bar__delete:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.stk-batch-bar__delete:not(:disabled):active {
  opacity: 0.8;
}

.stk-batch-bar__delete svg {
  width: 15px;
  height: 15px;
}

.stk-batch-bar__move {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 16px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: #fff;
  background: var(--color-text-primary);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-family: var(--font-family);
  transition: opacity var(--transition-fast);
}

.stk-batch-bar__move:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.stk-batch-bar__move:not(:disabled):active {
  opacity: 0.8;
}

.stk-batch-bar__move svg {
  width: 15px;
  height: 15px;
}

.stk-batch-bar__cancel {
  padding: 7px 14px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  background: var(--color-card-muted);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-family: var(--font-family);
  transition: background-color var(--transition-fast);
}

.stk-batch-bar__cancel:active {
  background: rgba(0, 0, 0, 0.08);
}

/* ================================================
   批量移动弹窗
   ================================================ */
.stk-batch-move-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: calc(var(--z-action-sheet) + 20);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.stk-batch-move-overlay.is-active {
  opacity: 1;
  pointer-events: auto;
}

.stk-batch-move__backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-overlay);
}

.stk-batch-move__card {
  position: relative;
  width: 280px;
  max-height: 70vh;
  background: #fff;
  border-radius: 16px;
  padding: 20px 0 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  transform: scale(0.92);
  transition: transform 0.25s cubic-bezier(0.32, 0.72, 0, 1);
}

.stk-batch-move-overlay.is-active .stk-batch-move__card {
  transform: scale(1);
}

.stk-batch-move__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  text-align: center;
  padding: 0 20px;
  margin-bottom: 4px;
}

.stk-batch-move__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-align: center;
  padding: 0 20px;
  margin-bottom: 14px;
}

.stk-batch-move__list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0 8px;
  max-height: 240px;
}

.stk-batch-move__option {
  display: block;
  width: 100%;
  padding: 12px 16px;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-primary);
  background: none;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-family);
  transition: background-color var(--transition-fast);
}

.stk-batch-move__option:active {
  background: rgba(0, 0, 0, 0.05);
}

.stk-batch-move__footer {
  padding: 8px 20px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  margin-top: 8px;
  display: flex;
  justify-content: center;
}

.stk-batch-move__cancel {
  padding: 10px 28px;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  background: none;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-family: var(--font-family);
  transition: background-color var(--transition-fast);
}

.stk-batch-move__cancel:active {
  background: rgba(0, 0, 0, 0.05);
}

/* ================================================
   批量选择模式 - 表情包网格选中效果
   ================================================ */
.stk-grid-item__check {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.2);
  background: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.stk-grid-item__check svg {
  width: 14px;
  height: 14px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.stk-grid-item.is-selected .stk-grid-item__check {
  border-color: var(--color-text-primary);
  background: var(--color-text-primary);
}

.stk-grid-item.is-selected .stk-grid-item__check svg {
  opacity: 1;
  color: #fff;
}

.stk-grid-item.is-selected .stk-grid-item__thumb {
  outline: 2px solid var(--color-text-primary);
  outline-offset: -2px;
}

/* 批量模式下隐藏更多按钮 */
.stk-grid.is-batch-mode .stk-grid-item__more {
  display: none;
}

/* 表情名称 */
.stk-grid-item__name {
  margin-top: 5px;
  font-size: 10px;
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.3;
}

/* ================================================
   空状态
   ================================================ */
.stk-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 40px;
  text-align: center;
}

.stk-empty__icon {
  width: 72px;
  height: 72px;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.stk-empty__icon svg {
  width: 100%;
  height: 100%;
}

.stk-empty__title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.stk-empty__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-hint);
  line-height: 1.5;
}

/* ================================================
   批量导入底部弹窗 - Overlay
   ================================================ */
.stk-import-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-action-sheet);
  display: none;
}

.stk-import-overlay.is-active {
  display: block;
}

/* 遮罩 */
.stk-import-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-overlay);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.stk-import-overlay.is-active .stk-import-mask {
  opacity: 1;
}

/* 底部弹窗面板 */
.stk-import-sheet {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: #fff;
  border-radius: 20px 20px 0 0;
  max-height: 88%;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.08);
}

.stk-import-overlay.is-active .stk-import-sheet {
  transform: translateY(0);
}

/* 拖动把手 */
.stk-import-sheet__handle {
  display: flex;
  justify-content: center;
  padding: 10px 0 4px;
  flex-shrink: 0;
}

.stk-import-sheet__handle span {
  width: 36px;
  height: 4px;
  background: rgba(0, 0, 0, 0.12);
  border-radius: var(--radius-full);
}

/* 弹窗标题区 */
.stk-import-sheet__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 20px 12px;
  flex-shrink: 0;
}

.stk-import-sheet__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.stk-import-sheet__close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-card-muted);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: 0;
  transition: background-color var(--transition-fast);
}

.stk-import-sheet__close:active {
  background-color: rgba(0, 0, 0, 0.1);
}

.stk-import-sheet__close svg {
  width: 16px;
  height: 16px;
}

/* 弹窗内容可滚动 */
.stk-import-sheet__info,
.stk-import-sheet__input-group,
.stk-import-sheet__category-group,
.stk-import-sheet__preview {
  padding: 0 20px;
}

/* 弹窗中间区域滚动 */
.stk-import-sheet {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* 格式说明 */
.stk-import-sheet__info {
  margin-bottom: 16px;
}

.stk-import-sheet__info-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.stk-import-sheet__info-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
}

/* 示例格式 */
.stk-import-sheet__example {
  background: #f7f7f8;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.stk-import-sheet__example-header {
  padding: 8px 12px;
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-hint);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.stk-import-sheet__example-code {
  padding: 10px 12px;
  margin: 0;
  font-size: 11px;
  font-family: 'SF Mono', 'Monaco', 'Menlo', monospace;
  color: var(--color-text-secondary);
  line-height: 1.7;
  white-space: pre-line;
  word-break: break-all;
}

/* 多行输入框 */
.stk-import-sheet__input-group {
  margin-bottom: 14px;
}

.stk-import-sheet__label-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.stk-import-sheet__label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: 0;
}

.stk-import-sheet__label-row + .stk-import-sheet__textarea {
  margin-top: 0;
}

/* 导入文档按钮 */
.stk-import-doc-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: var(--font-weight-medium);
  color: #5856d6;
  background: rgba(88, 86, 214, 0.08);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-family);
  transition: background-color var(--transition-fast);
  margin-left: auto;
  white-space: nowrap;
}

.stk-import-doc-btn:active {
  background: rgba(88, 86, 214, 0.15);
}

.stk-import-doc-btn svg {
  width: 14px;
  height: 14px;
}

.stk-import-sheet__textarea {
  width: 100%;
  min-height: 100px;
  padding: 12px;
  font-size: var(--font-size-sm);
  font-family: 'SF Mono', 'Monaco', 'Menlo', var(--font-family);
  color: var(--color-text-primary);
  background: #f7f7f8;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 12px;
  resize: vertical;
  outline: none;
  transition: border-color var(--transition-fast);
  box-sizing: border-box;
  line-height: 1.6;
}

.stk-import-sheet__textarea:focus {
  border-color: rgba(0, 0, 0, 0.15);
}

.stk-import-sheet__textarea::placeholder {
  color: var(--color-text-hint);
}

/* 分类选择 - 下拉组件 */
.stk-import-sheet__category-group {
  margin-bottom: 16px;
}

.stk-cat-dropdown {
  position: relative;
}

.stk-cat-dropdown__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: #f7f7f8;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.stk-cat-dropdown.is-open .stk-cat-dropdown__trigger {
  border-color: rgba(0, 0, 0, 0.15);
  background: #fff;
}

.stk-cat-dropdown__trigger:active {
  background: rgba(0, 0, 0, 0.06);
}

.stk-cat-dropdown__value {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
}

.stk-cat-dropdown__arrow {
  width: 18px;
  height: 18px;
  color: var(--color-text-hint);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.stk-cat-dropdown.is-open .stk-cat-dropdown__arrow {
  transform: rotate(180deg);
}

/* 下拉面板 */
.stk-cat-dropdown__panel {
  display: none;
  margin-top: 6px;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  animation: stkDropdownIn 0.2s ease;
}

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

.stk-cat-dropdown.is-open .stk-cat-dropdown__panel {
  display: block;
}

/* 选项列表（可滚动） */
.stk-cat-dropdown__list {
  max-height: 160px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 6px 0;
}

.stk-cat-dropdown__list::-webkit-scrollbar {
  width: 3px;
}

.stk-cat-dropdown__list::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.12);
  border-radius: 3px;
}

.stk-cat-dropdown__option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 16px;
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-family);
  transition: background-color var(--transition-fast);
}

.stk-cat-dropdown__option:active {
  background: rgba(0, 0, 0, 0.04);
}

.stk-cat-dropdown__option.is-selected {
  font-weight: var(--font-weight-medium);
}

.stk-cat-dropdown__option-check {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-text-primary);
  opacity: 0;
}

.stk-cat-dropdown__option.is-selected .stk-cat-dropdown__option-check {
  opacity: 1;
}

.stk-cat-dropdown__option-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 内联创建分类 */
.stk-cat-dropdown__create {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px 10px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.stk-cat-dropdown__create-input {
  flex: 1;
  padding: 8px 12px;
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background: #f7f7f8;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 10px;
  outline: none;
  box-sizing: border-box;
  font-family: var(--font-family);
  transition: border-color var(--transition-fast);
}

.stk-cat-dropdown__create-input:focus {
  border-color: rgba(0, 0, 0, 0.18);
}

.stk-cat-dropdown__create-input::placeholder {
  color: var(--color-text-hint);
}

.stk-cat-dropdown__create-btn {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-text-primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: opacity var(--transition-fast);
  padding: 0;
}

.stk-cat-dropdown__create-btn:active {
  opacity: 0.7;
}

.stk-cat-dropdown__create-btn svg {
  width: 16px;
  height: 16px;
}

/* 导入预览区 */
.stk-import-sheet__preview {
  margin-bottom: 16px;
}

.stk-import-sheet__preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.stk-import-sheet__preview-header span:first-child {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.stk-import-sheet__preview-count {
  font-size: 12px;
  color: var(--color-text-hint);
}

.stk-import-sheet__preview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.stk-import-sheet__preview-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stk-import-sheet__preview-thumb {
  width: 100%;
  aspect-ratio: 1;
  background: var(--color-card-muted);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.stk-import-sheet__preview-emoji {
  font-size: 28px;
  line-height: 1;
}

.stk-import-sheet__preview-name {
  font-size: 10px;
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 底部按钮区 */
.stk-import-sheet__actions {
  display: flex;
  gap: 10px;
  padding: 12px 20px;
  padding-bottom: calc(16px + var(--safe-area-bottom, 0px));
  flex-shrink: 0;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
  background: #fff;
}

.stk-import-sheet__btn {
  flex: 1;
  padding: 12px 0;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-family: var(--font-family);
  transition: all var(--transition-fast);
  text-align: center;
}

.stk-import-sheet__btn--cancel {
  color: var(--color-text-primary);
  background: var(--color-card-muted);
}

.stk-import-sheet__btn--cancel:active {
  background: rgba(0, 0, 0, 0.08);
}

.stk-import-sheet__btn--submit {
  color: #fff;
  background: var(--color-text-primary);
}

.stk-import-sheet__btn--submit:active {
  opacity: 0.8;
}

/* ================================================
   挂载弹窗 - Overlay
   ================================================ */
.stk-mount-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-action-sheet);
  display: none;
}

.stk-mount-overlay.is-active {
  display: block;
}

.stk-mount-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-overlay);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.stk-mount-overlay.is-active .stk-mount-mask {
  opacity: 1;
}

.stk-mount-sheet {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: #fff;
  border-radius: 20px 20px 0 0;
  max-height: 88%;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.08);
}

.stk-mount-overlay.is-active .stk-mount-sheet {
  transform: translateY(0);
}

.stk-mount-sheet__handle {
  display: flex;
  justify-content: center;
  padding: 10px 0 4px;
  flex-shrink: 0;
}

.stk-mount-sheet__handle span {
  width: 36px;
  height: 4px;
  background: rgba(0, 0, 0, 0.12);
  border-radius: var(--radius-full);
}

.stk-mount-sheet__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 20px 12px;
  flex-shrink: 0;
}

.stk-mount-sheet__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.stk-mount-sheet__close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-card-muted);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: 0;
  transition: background-color var(--transition-fast);
}

.stk-mount-sheet__close:active {
  background-color: rgba(0, 0, 0, 0.1);
}

.stk-mount-sheet__close svg {
  width: 16px;
  height: 16px;
}

.stk-mount-sheet__info {
  padding: 0 20px;
  margin-bottom: 12px;
}

.stk-mount-sheet__info-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.stk-mount-sheet__contacts {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0 20px;
}

/* 每个联系人行 */
.stk-mount-contact {
  padding: 14px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.stk-mount-contact:last-child {
  border-bottom: none;
}

.stk-mount-contact__info {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.stk-mount-contact__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-card-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  flex-shrink: 0;
  background-size: cover;
  background-position: center;
}

.stk-mount-contact__name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 分类 chip 选择 */
.stk-mount-contact__cats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-left: 46px;
}

.stk-mount-cat-chip {
  padding: 5px 14px;
  font-size: 12px;
  font-weight: var(--font-weight-regular);
  color: var(--color-text-secondary);
  background: var(--color-card-muted);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-family);
  white-space: nowrap;
}

.stk-mount-cat-chip.is-selected {
  color: #fff;
  background: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.stk-mount-cat-chip:not(.is-selected):active {
  background: rgba(0, 0, 0, 0.08);
}

/* 空状态 */
.stk-mount-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
  text-align: center;
}

.stk-mount-empty p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin: 0;
}

.stk-mount-empty__hint {
  font-size: var(--font-size-sm) !important;
  color: var(--color-text-hint) !important;
  margin-top: 6px !important;
}

/* 底部按钮 */
.stk-mount-sheet__actions {
  display: flex;
  gap: 10px;
  padding: 12px 20px;
  padding-bottom: calc(16px + var(--safe-area-bottom, 0px));
  flex-shrink: 0;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
  background: #fff;
}

.stk-mount-sheet__btn {
  flex: 1;
  padding: 12px 0;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-family: var(--font-family);
  transition: all var(--transition-fast);
  text-align: center;
}

.stk-mount-sheet__btn--cancel {
  color: var(--color-text-primary);
  background: var(--color-card-muted);
}

.stk-mount-sheet__btn--cancel:active {
  background: rgba(0, 0, 0, 0.08);
}

.stk-mount-sheet__btn--submit {
  color: #fff;
  background: var(--color-text-primary);
}

.stk-mount-sheet__btn--submit:active {
  opacity: 0.8;
}