/* ========================================
   Contacts CSS - 通讯录页面（独立 APP）
   ins风白色系 · 圆角 · 轻阴影 · 留白舒适
   所有选择器 .contacts-* 独立作用域
   ======================================== */

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

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

/* ================================================
   1. 顶部导航栏
   ================================================ */
.contacts-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: #ffffff;
  flex-shrink: 0;
  position: relative;
}

.contacts-nav__back,
.contacts-nav__action {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  transition: background-color var(--transition-fast);
}

.contacts-nav__back:active,
.contacts-nav__action:active {
  background-color: rgba(0, 0, 0, 0.04);
}

.contacts-nav__back svg,
.contacts-nav__action svg {
  width: 22px;
  height: 22px;
}

.contacts-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%);
  letter-spacing: 0.3px;
}

/* ================================================
   2. 可滚动内容区
   ================================================ */
.contacts-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0 var(--spacing-lg);
  padding-bottom: calc(68px + var(--safe-area-bottom) + 16px);
}

/* ================================================
   3. 搜索栏
   ================================================ */
.contacts-search {
  margin-top: 6px;
  margin-bottom: 16px;
}

.contacts-search__input-wrapper {
  display: flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 14px;
  padding: 10px 14px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.contacts-search__input-wrapper:focus-within {
  border-color: rgba(0, 0, 0, 0.10);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.contacts-search__icon {
  width: 18px;
  height: 18px;
  color: var(--color-text-hint);
  flex-shrink: 0;
  margin-right: 10px;
}

.contacts-search__input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  font-family: var(--font-family);
}

.contacts-search__input::placeholder {
  color: var(--color-text-hint);
  font-weight: var(--font-weight-light);
}

/* ================================================
   4. 固定入口卡片：新朋友 & 服务号
   ================================================ */
.contacts-entries {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 18px;
}

.contacts-entry-card {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 16px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.contacts-entry-card:active {
  background-color: rgba(0, 0, 0, 0.015);
}

.contacts-entry-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #fafafa;
  border: 1.5px solid rgba(0, 0, 0, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contacts-entry-card__icon svg {
  width: 22px;
  height: 22px;
}

.contacts-entry-card__info {
  flex: 1;
  margin-left: 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contacts-entry-card__name {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.contacts-entry-card__desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-hint);
}

.contacts-entry-card__arrow {
  width: 18px;
  height: 18px;
  color: var(--color-text-hint);
  flex-shrink: 0;
  opacity: 0.4;
}

/* ================================================
   5. 横向切换栏
   ================================================ */
.contacts-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 18px;
  padding: 4px;
  background: rgba(0, 0, 0, 0.025);
  border-radius: 12px;
}

.contacts-tabs__item {
  flex: 1;
  text-align: center;
  padding: 8px 0;
  border-radius: 10px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  background: transparent;
  font-family: var(--font-family);
  user-select: none;
}

.contacts-tabs__item:active {
  background: rgba(0, 0, 0, 0.03);
}

.contacts-tabs__item.is-active {
  background: #ffffff;
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

/* ================================================
   6. 内容面板
   ================================================ */
.contacts-panel {
  margin-bottom: 16px;
}

/* ---- 分组视图 ---- */
.contacts-group-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contacts-group-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 16px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  overflow: hidden;
}

.contacts-group-card.is-expanded {
  border-color: rgba(0, 0, 0, 0.08);
}

.contacts-group-card__header {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  cursor: pointer;
}

.contacts-group-card__header:active {
  background-color: rgba(0, 0, 0, 0.015);
}

.contacts-group-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #fafafa;
  border: 1.5px solid rgba(0, 0, 0, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contacts-group-card__icon svg {
  width: 22px;
  height: 22px;
}

.contacts-group-card__name {
  flex: 1;
  margin-left: 14px;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.contacts-group-card__count {
  font-size: var(--font-size-xs);
  color: var(--color-text-hint);
  margin-left: 4px;
  margin-right: 4px;
}

.contacts-group-card__arrow {
  width: 18px;
  height: 18px;
  color: var(--color-text-hint);
  flex-shrink: 0;
  opacity: 0.4;
  transition: transform 0.2s ease;
}

.contacts-group-card__arrow.is-rotated {
  transform: rotate(90deg);
}

/* 展开后的成员列表 */
.contacts-group-card__members {
  border-top: 1px solid rgba(0, 0, 0, 0.04);
  padding: 6px 0;
}

.contacts-group-member {
  display: flex;
  align-items: center;
  padding: 10px 16px 10px 24px;
  cursor: pointer;
  position: relative;
}

.contacts-group-member:active {
  background-color: rgba(0, 0, 0, 0.015);
}

.contacts-group-member + .contacts-group-member::before {
  content: '';
  position: absolute;
  top: 0;
  left: 72px;
  right: 16px;
  height: 1px;
  background: rgba(0, 0, 0, 0.04);
}

.contacts-group-member .contacts-friend-avatar {
  width: 36px;
  height: 36px;
  font-size: 14px;
}

.contacts-group-member .contacts-friend-name {
  font-size: var(--font-size-sm);
}

.contacts-group-card__empty {
  padding: 20px 16px;
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-hint);
}

/* 删除按钮（自定义分组） */
.contacts-group-card__delete {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-hint);
  margin-left: 6px;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
}

.contacts-group-card__delete:active {
  background-color: rgba(255, 59, 48, 0.08);
  color: #ff3b30;
}

.contacts-group-card__delete svg {
  width: 16px;
  height: 16px;
}

/* 创建新分组按钮 */
.contacts-add-group-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px;
  background: #ffffff;
  border: 1.5px dashed rgba(0, 0, 0, 0.1);
  border-radius: 16px;
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  font-family: var(--font-family);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.contacts-add-group-btn:active {
  background-color: rgba(0, 0, 0, 0.02);
  border-color: rgba(0, 0, 0, 0.15);
}

.contacts-add-group-btn svg {
  width: 18px;
  height: 18px;
}

/* ---- 好友视图：按首字母分组 ---- */
.contacts-alpha-section {
  margin-bottom: 14px;
}

.contacts-alpha-section__letter {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-hint);
  padding-left: 4px;
  margin-bottom: 8px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.contacts-alpha-section__card {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 16px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  overflow: hidden;
}

.contacts-friend-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  position: relative;
}

.contacts-friend-item:active {
  background-color: rgba(0, 0, 0, 0.015);
}

/* 分隔线 */
.contacts-friend-item + .contacts-friend-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 72px;
  right: 16px;
  height: 1px;
  background: rgba(0, 0, 0, 0.04);
}

.contacts-friend-avatar {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: var(--font-weight-semibold);
  color: #ffffff;
  flex-shrink: 0;
}

.contacts-friend-name {
  flex: 1;
  margin-left: 14px;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-primary);
}

/* 头像图片样式 */
.contacts-friend-avatar--img {
  overflow: hidden;
  padding: 0;
  background: #f0f0f0;
}

.contacts-friend-avatar--img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
  display: block;
}

/* 头像渐变色复用（独立命名空间） */
.contacts-avatar--g1 { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
.contacts-avatar--g2 { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
.contacts-avatar--g3 { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }
.contacts-avatar--g4 { background: linear-gradient(135deg, #fa709a 0%, #fee140 100%); }
.contacts-avatar--g5 { background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%); }
.contacts-avatar--g6 { background: linear-gradient(135deg, #fccb90 0%, #d57eeb 100%); }
.contacts-avatar--g7 { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }

/* ---- 群聊视图 ---- */
.contacts-chat-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contacts-chat-card {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 16px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.contacts-chat-card:active {
  background-color: rgba(0, 0, 0, 0.015);
}

.contacts-chat-avatar {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: var(--font-weight-semibold);
  color: #ffffff;
  flex-shrink: 0;
}

.contacts-chat-avatar svg {
  width: 24px;
  height: 24px;
}

.contacts-chat-avatar--default {
  background: #222;
  border-radius: 50%;
}

.contacts-chat-avatar--default svg {
  width: 26px;
  height: 26px;
  color: #fff;
}

.contacts-chat-avatar--img {
  border-radius: 50%;
  overflow: hidden;
  padding: 0;
}

.contacts-chat-info {
  flex: 1;
  margin-left: 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contacts-chat-name {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.contacts-chat-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-hint);
}

/* ---- 空状态 ---- */
.contacts-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--color-text-hint);
}

.contacts-empty__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  opacity: 0.3;
}

.contacts-empty__text {
  font-size: var(--font-size-sm);
}

/* ================================================
   7. 底部导航栏
   ================================================ */
.contacts-bottom-nav {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-around;
  padding: 8px 0;
  padding-bottom: calc(8px + var(--safe-area-bottom));
  background: #ffffff;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
  flex-shrink: 0;
}

.contacts-bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 4px 0;
  background: none;
  border: none;
  cursor: pointer;
  min-width: 56px;
  transition: opacity var(--transition-fast);
}

.contacts-bottom-nav__item:active {
  opacity: 0.6;
}

.contacts-bottom-nav__icon {
  width: 24px;
  height: 24px;
  color: var(--color-text-hint);
}

.contacts-bottom-nav__label {
  font-size: 10px;
  color: var(--color-text-hint);
  font-weight: var(--font-weight-light);
  font-family: var(--font-family);
}

/* 高亮态 */
.contacts-bottom-nav__item.is-active .contacts-bottom-nav__icon {
  color: var(--color-text-primary);
}

.contacts-bottom-nav__item.is-active .contacts-bottom-nav__label {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

/* ================================================
   8. Toast 提示（轻量占位）
   ================================================ */
.contacts-toast {
  position: fixed;
  bottom: 120px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(0, 0, 0, 0.75);
  color: #ffffff;
  padding: 10px 24px;
  border-radius: 20px;
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  z-index: calc(var(--z-drawer) + 10);
  white-space: nowrap;
}

.contacts-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}