/* ===================================
   真寻 Chat — NT QQ 毛玻璃风格
   灵感源自 2025 NT QQ 桌面版
   =================================== */

/* ===== CSS 变量体系 ===== */
:root {
  /* 主色调 — QQ 蓝 */
  --primary: #12B7F5;
  --primary-dark: #0A9ED9;
  --primary-light: #5DD3FF;
  --primary-glow: rgba(18, 183, 245, 0.25);

  /* 背景体系 — 毛玻璃分层 */
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-strong: rgba(255, 255, 255, 0.88);
  --glass-bg-light: rgba(255, 255, 255, 0.55);
  --glass-bg-sidebar: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(255, 255, 255, 0.45);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);

  /* 基础色 */
  --bg: #F0F2F5;
  --bg-gradient: linear-gradient(135deg, #e8ecf1 0%, #f0f2f5 40%, #eaf0f6 70%, #f0f2f5 100%);
  --white: #ffffff;
  --text: #1a1a2e;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --border: rgba(0, 0, 0, 0.06);
  --border-strong: rgba(0, 0, 0, 0.1);

  /* 聊天气泡 */
  --bubble-self: linear-gradient(135deg, #12B7F5, #0d9fd9);
  --bubble-self-text: #ffffff;
  --bubble-other: #ffffff;
  --bubble-other-text: #1a1a2e;
  --bubble-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);

  /* 状态色 */
  --online: #22c55e;
  --offline: #d1d5db;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --success: #10b981;

  /* 圆角系统 */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 20px;

  /* 聊天背景（用户自定义） */
  --chat-bg: transparent;
  --chat-bg-size: cover;
  --chat-bg-position: center;
  --chat-bg-repeat: no-repeat;
  --radius-xl: 24px;

  /* 尺寸 */
  --topbar-height: 52px;
  --nav-height: 60px;
  --sidebar-width: 68px;
  --panel-width: 310px;

  /* 动效 */
  --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 0.15s;
  --transition-normal: 0.25s;
}

/* ===== 全局重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
}

/* ===== 登录页 — 毛玻璃卡片 ===== */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  height: 100dvh;
  /* 柔和渐变背景 + 装饰光斑 */
  background:
    radial-gradient(ellipse 80% 60% at 30% 20%, rgba(18, 183, 245, 0.12), transparent),
    radial-gradient(ellipse 60% 50% at 70% 80%, rgba(99, 102, 241, 0.08), transparent),
    linear-gradient(160deg, #f0f4f8 0%, #e2e8f0 30%, #eef1f5 60%, #f0f4f8 100%);
  position: relative;
  overflow: hidden;
}

/* 背景装饰圆 */
.auth-page::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(18,183,245,0.08), transparent 70%);
  top: -150px; left: -100px;
  pointer-events: none;
}
.auth-page::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,0.06), transparent 70%);
  bottom: -100px; right: -80px;
  pointer-events: none;
}

.auth-card {
  position: relative;
  z-index: 1;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  width: 400px;
  max-width: 92vw;
  max-height: 90dvh;
  overflow-y: auto;
  box-shadow:
    0 4px 24px rgba(0,0,0,0.06),
    0 1px 3px rgba(0,0,0,0.04),
    inset 0 1px 0 rgba(255,255,255,0.6);
  border: 1px solid var(--glass-border);
  text-align: center;
}

.auth-logo {
  font-size: 52px;
  margin-bottom: 12px;
  filter: drop-shadow(0 4px 8px rgba(18,183,245,0.2));
}

.auth-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}

.auth-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-weight: 400;
}

.auth-tabs {
  display: flex;
  background: rgba(0,0,0,0.04);
  border-radius: var(--radius-sm);
  padding: 4px;
  margin-bottom: 28px;
  gap: 2px;
}

.auth-tab {
  flex: 1;
  padding: 10px 16px;
  border: none;
  background: transparent;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-fast) var(--ease-out);
}

.auth-tab.active {
  background: var(--white);
  color: var(--primary);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  font-weight: 600;
}
.auth-tab:hover:not(.active) { color: var(--text); }

.input-group { margin-bottom: 16px; }

.input-group input {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius);
  font-size: 15px;
  outline: none;
  transition: all var(--transition-fast) var(--ease-out);
  background: rgba(255,255,255,0.7);
  color: var(--text);
}
.input-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow);
  background: var(--white);
}

.auth-btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  transition: all var(--transition-fast) var(--ease-out);
  box-shadow: 0 4px 16px rgba(18,183,245,0.3);
  letter-spacing: 1px;
}
.auth-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(18,183,245,0.4);
}
.auth-btn:active { transform: translateY(0) scale(0.98); }

.auth-error {
  color: var(--danger);
  font-size: 13px;
  margin-top: 14px;
  min-height: 20px;
}

/* ===== 注册表单样式 ===== */
.reg-field { display: none; }
.avatar-upload {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 16px;
  cursor: pointer;
}
.avatar-upload-preview {
  width: 68px; height: 68px;
  border-radius: 50%;
  background: rgba(0,0,0,0.04);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  overflow: hidden;
  border: 2px dashed var(--border-strong);
  transition: all var(--transition-fast);
}
.avatar-upload-preview.has-image { border: 2px solid var(--primary); }
.avatar-upload-preview img {
  width: 100%; height: 100%; object-fit: cover; border-radius: 50%;
}
.avatar-upload-text {
  font-size: 12px; color: var(--text-secondary); margin-top: 6px;
}
.reg-row { align-items: center; margin-bottom: 16px; display: none; } /* JS switchAuthTab 控制显示 */
.reg-birth { display: flex; gap: 0; }
.reg-birth select { flex: 1; margin-right: 2px; }
.reg-birth select:last-child { margin-right: 0; }

.input-select {
  width: 100%; padding: 13px 12px;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius);
  font-size: 14px; outline: none;
  background: rgba(255,255,255,0.7);
  color: var(--text);
  transition: all var(--transition-fast);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}
.input-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow);
}

/* ===== 主界面布局 ===== */
.chat-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  background: var(--bg);
  position: relative;
}

/* 顶部标题栏 */
.top-bar {
  height: var(--topbar-height);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}
.top-bar-title {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 1px;
}

/* Tab 内容区 */
.tab-content {
  flex: 1;
  overflow: hidden;
  position: relative;
}
.tab-panel {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.tab-panel::-webkit-scrollbar { width: 4px; }
.tab-panel::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.12);
  border-radius: 2px;
}
.tab-panel::-webkit-scrollbar-track { background: transparent; }

/* ===== 消息列表（Tab1） ===== */
.conv-list { padding: 8px 0; }

.conv-item {
  display: flex;
  align-items: center;
  padding: 14px 18px;
  cursor: pointer;
  transition: all var(--transition-fast) var(--ease-out);
  position: relative;
  margin: 2px 8px;
  border-radius: var(--radius);
}
.conv-item:hover {
  background: rgba(0,0,0,0.03);
}
.conv-item:active {
  background: rgba(0,0,0,0.05);
  transform: scale(0.99);
}

.conv-avatar {
  width: 50px; height: 50px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; color: #fff; font-weight: 600;
  flex-shrink: 0; margin-right: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.conv-avatar.public-avatar {
  background: linear-gradient(135deg, #12B7F5, #69d2f8);
}

.conv-body { flex: 1; min-width: 0; }
.conv-name {
  font-size: 15px; font-weight: 600;
  color: var(--text); margin-bottom: 4px;
}
.conv-preview {
  font-size: 13px; color: var(--text-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.conv-meta {
  text-align: right; margin-left: 10px; flex-shrink: 0;
}
.conv-time { font-size: 11px; color: var(--text-light); }

.conv-badge {
  background: var(--danger);
  color: #fff;
  font-size: 11px; font-weight: 600;
  min-width: 20px; height: 20px; border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 6px; margin-top: 5px;
  box-shadow: 0 2px 6px rgba(239,68,68,0.3);
}

.conv-empty {
  text-align: center;
  color: var(--text-light);
  padding: 80px 20px;
  font-size: 15px;
}

/* ===== 联系人列表（Tab2） ===== */
.search-box {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 14px 10px;
}
.search-box input {
  flex: 1; min-width: 0;
  padding: 10px 16px;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.6);
  font-size: 14px; outline: none; color: var(--text);
  transition: all var(--transition-fast);
}
.search-box input:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px var(--primary-glow);
}
.search-box input::placeholder { color: var(--text-light); }

.search-add-btn {
  flex-shrink: 0;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-lg);
  padding: 9px 16px;
  font-size: 13px; font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  display: flex; align-items: center; gap: 4px;
}
.search-add-btn:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 12px var(--primary-glow);
}
.search-add-btn:active { transform: scale(0.96); }

.contact-section-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px 6px;
  font-size: 13px; font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

.contact-section-action {
  background: none;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  border-radius: var(--radius-lg);
  padding: 5px 14px;
  font-size: 12px; font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.contact-section-action:hover {
  background: var(--primary);
  color: #fff;
}

.contact-list { padding: 4px 0; }

.contact-item {
  display: flex; align-items: center;
  padding: 13px 18px;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  margin: 2px 8px;
  border-radius: var(--radius);
}
.contact-item:hover { background: rgba(0,0,0,0.03); }
.contact-item:active {
  background: rgba(0,0,0,0.05);
  transform: scale(0.99);
}

.contact-avatar {
  width: 46px; height: 46px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: #fff;
  flex-shrink: 0; margin-right: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.contact-avatar.public-avatar {
  background: linear-gradient(135deg, #12B7F5, #69d2f8);
  font-size: 24px;
}

.contact-info { flex: 1; min-width: 0; }
.contact-name {
  font-size: 15px; font-weight: 500; color: var(--text); margin-bottom: 3px;
}
.contact-status { font-size: 12px; color: var(--text-secondary); }

.contact-badge {
  background: var(--danger);
  color: #fff; font-size: 11px; font-weight: 600;
  min-width: 20px; height: 20px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 6px; margin-left: 8px;
  box-shadow: 0 2px 6px rgba(239,68,68,0.3);
}

/* ===== 我的（Tab3） ===== */
.my-page { padding: 0; }

.my-header {
  background: linear-gradient(160deg, #12B7F5 0%, #0d9fd9 40%, #0b6fb8 100%);
  color: #fff;
  text-align: center;
  padding: 40px 20px 32px;
  position: relative;
  overflow: hidden;
}
.my-header::after {
  content: '';
  position: absolute;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(255,255,255,0.1), transparent 70%);
  top: -50px; right: -50px;
  border-radius: 50%;
}

.my-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 36px; color: #fff; font-weight: 700;
  margin: 0 auto 16px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow: hidden;
  border: 3px solid rgba(255,255,255,0.3);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.my-name { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.my-id { font-size: 13px; opacity: 0.8; font-weight: 400; }

.my-menu {
  background: var(--white);
  margin: 14px 14px 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.my-menu-item {
  display: flex; align-items: center;
  padding: 15px 18px;
  font-size: 15px;
  cursor: pointer;
  transition: background var(--transition-fast);
  border-bottom: 1px solid rgba(0,0,0,0.04);
}
.my-menu-item:last-child { border-bottom: none; }
.my-menu-item:active { background: rgba(0,0,0,0.03); }
.my-menu-item span:first-child {
  margin-right: 14px;
  font-size: 20px;
  width: 28px; text-align: center;
}
.my-menu-item span:nth-child(2) { flex: 1; }
.my-menu-item span:last-child {
  color: var(--text-light);
  font-size: 14px;
}

.my-logout-btn {
  display: block;
  margin: 28px auto;
  padding: 11px 44px;
  border: 1.5px solid var(--danger);
  border-radius: var(--radius-lg);
  background: var(--white);
  color: var(--danger);
  font-size: 15px; font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.my-logout-btn:hover {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 4px 16px rgba(239,68,68,0.25);
}

/* ===== 聊天浮层 ===== */
.chat-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  pointer-events: auto;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease-out);
}
.chat-overlay.open { transform: translateX(0); }

.chat-overlay-header {
  height: var(--topbar-height);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  display: flex;
  align-items: center;
  padding: 0 12px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.03);
  gap: 10px;
}

.chat-back-btn {
  background: none;
  border: none;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
  padding: 6px 8px;
  margin-right: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.chat-back-btn:hover { background: rgba(0,0,0,0.04); }

.chat-overlay-info { flex: 1; min-width: 0; }
.chat-overlay-name { font-size: 16px; font-weight: 600; }
.chat-overlay-status { font-size: 12px; color: var(--text-secondary); }

.chat-header-info {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}
.chat-header-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600;
  color: #fff;
  overflow: hidden;
}
.chat-header-avatar .avatar-img {
  width: 100%; height: 100%;
  border-radius: 50%; object-fit: cover;
}

/* ===== 消息区域 ===== */
.messages-area {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px;
  -webkit-overflow-scrolling: touch;
  background:
    var(--chat-bg, transparent) var(--chat-bg-position, center) / var(--chat-bg-size, cover) var(--chat-bg-repeat, no-repeat),
    radial-gradient(ellipse at 50% 0%, rgba(18,183,245,0.03), transparent 60%);
}
.messages-area::-webkit-scrollbar { width: 4px; }
.messages-area::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.1);
  border-radius: 2px;
}
.messages-area::-webkit-scrollbar-track { background: transparent; }

.messages-loading {
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
  padding: 40px;
}

/* ===== 消息气泡 ===== */
.message-group {
  display: flex;
  gap: 10px;
  margin-bottom: 18px;
  animation: msgIn 0.3s var(--ease-out);
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.message-group.self { flex-direction: row-reverse; }

.msg-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: #fff; font-weight: 600;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.msg-content-wrapper {
  max-width: 70%;
  display: flex;
  flex-direction: column;
}

.msg-username {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 3px;
  padding: 0 6px;
}
.message-group.self .msg-username {
  text-align: right;
  align-self: flex-end;
}

/* 群聊消息中的角色标签 */
.chat-role-badge {
  display: inline; font-size: 10px; font-weight: 500;
  padding: 1px 5px; border-radius: 3px;
  vertical-align: middle; margin-left: 2px;
}
.chat-role-owner { background: #fff7e6; color: #d48806; border: 1px solid #ffd591; }
.chat-role-admin { background: #f6ffed; color: #389e0d; border: 1px solid #b7eb8f; }

.msg-bubble {
  padding: 11px 16px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.55;
  word-break: break-word;
  position: relative;
  box-shadow: var(--bubble-shadow);
  width: fit-content;
  max-width: 100%;
  overflow: hidden;
}

.message-group.other .msg-bubble {
  background: var(--bubble-other);
  color: var(--bubble-other-text);
  border-top-left-radius: 6px;
  border: 1px solid rgba(0,0,0,0.04);
}

.message-group.self .msg-bubble {
  background: var(--bubble-self);
  color: var(--bubble-self-text);
  border-top-right-radius: 6px;
  box-shadow: 0 2px 10px rgba(18,183,245,0.25);
  align-self: flex-end;
}

.message-group.other .msg-bubble {
  align-self: flex-start;
}

.msg-time {
  font-size: 10px;
  color: var(--text-light);
  padding: 4px 6px 0;
}
.message-group.self .msg-time { text-align: right; }

.system-msg {
  text-align: center;
  margin: 16px 0;
  font-size: 12px;
  color: var(--text-light);
}

/* ===== 输入区域 — 毛玻璃 ===== */
.input-area {
  position: relative;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border-top: 1px solid var(--border);
  padding: 10px 14px;
  flex-shrink: 0;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}
.input-area textarea {
  flex: 1;
  padding: 10px 16px;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.7);
  font-size: 14px;
  line-height: 1.45;
  resize: none;
  outline: none;
  max-height: 100px;
  font-family: inherit;
  transition: all var(--transition-fast);
}
.input-area textarea:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* 禁言遮罩层 */
.mute-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 10;
  border-radius: var(--radius-md);
  font-size: 14px;
  color: #e67e22;
  font-weight: 500;
}
.mute-icon { font-size: 18px; }
.mute-countdown {
  font-variant-numeric: tabular-nums;
  min-width: 56px;
  text-align: center;
  color: #e74c3c;
  font-weight: 600;
}

.send-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
  font-size: 18px;
  box-shadow: 0 2px 8px rgba(18,183,245,0.3);
}
.send-btn:hover {
  background: var(--primary-dark);
  transform: scale(1.05);
}
.send-btn:active { transform: scale(0.95); }

/* 隐藏但可触发 click（移动端 .click() 需要 DOM 中存在） */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  opacity: 0;
}

/* ===== 加号按钮 (NT QQ风格) ===== */
.add-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--border-strong);
  background: rgba(255,255,255,0.7);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}
.add-btn:hover {
  background: rgba(0,0,0,0.04);
  color: var(--primary);
}
.add-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: rotate(45deg);
}

/* ===== 加号面板 (NT QQ风格) ===== */
.add-panel {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 12px 16px;
  background: var(--glass-bg-strong, rgba(255,255,255,0.9));
  backdrop-filter: blur(12px) saturate(1.2);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  animation: addPanelSlideUp 0.18s ease;
}
@keyframes addPanelSlideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.add-panel-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}
.add-panel-item:active {
  background: rgba(0,0,0,0.05);
  transform: scale(0.95);
}
.add-panel-icon {
  font-size: 28px;
  line-height: 1;
}
.add-panel-label {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===== 表情按钮 ===== */
.emoji-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--border-strong);
  background: rgba(255,255,255,0.7);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
  font-size: 19px;
  line-height: 1;
}
.emoji-btn:hover {
  background: rgba(0,0,0,0.04);
  color: var(--primary);
}
.emoji-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== 麦克风按钮 ===== */
.mic-btn {
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  background: rgba(255,255,255,0.85);
  color: #ef4444;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}
.mic-btn:hover {
  background: rgba(239,68,68,0.08);
  color: #dc2626;
  border-color: rgba(239,68,68,0.4);
  transform: scale(1.06);
}
.mic-btn.recording {
  background: #ef4444;
  color: #fff;
  border-color: #ef4444;
  animation: micPulse 1s ease-in-out infinite;
}
@keyframes micPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(239,68,68,0.4); }
  50% { transform: scale(1.08); box-shadow: 0 0 0 8px rgba(239,68,68,0); }
}

/* ===== 语音输入模式（NT QQ 风格） ===== */
.mic-btn.voice-active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: scale(1.05);
}
.voice-mode-area {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.keyboard-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--border-strong);
  background: rgba(255,255,255,0.7);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}
.keyboard-btn:hover {
  background: rgba(0,0,0,0.04);
  color: var(--primary);
}
.voice-hold-btn {
  flex: 1;
  height: 46px;
  border-radius: 8px;
  border: 1.5px solid var(--border-strong);
  background: rgba(255,255,255,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: none;
  transition: all 0.15s ease;
}
.voice-hold-text {
  font-size: 15px;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 1px;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  pointer-events: none;
}
.voice-hold-btn:active {
  background: #e5e7eb;
  border-color: #d1d5db;
}
.voice-hold-btn.recording {
  background: #fef2f2;
  border-color: #fecaca;
}
.voice-hold-btn.recording .voice-hold-text {
  color: #ef4444;
}

/* ===== 录音指示器覆盖层 ===== */
.recording-indicator {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  z-index: 20;
  flex-direction: column;
  border-radius: inherit;
  transition: opacity 0.2s ease;
}
.recording-indicator.cancelling {
  background: rgba(239, 68, 68, 0.85);
}
.recording-dot {
  width: 16px; height: 16px;
  background: #ef4444;
  border-radius: 50%;
  animation: recordingPulse 0.8s ease-in-out infinite;
  box-shadow: 0 0 12px rgba(239,68,68,0.6);
}
@keyframes recordingPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.recording-indicator.cancelling .recording-dot {
  background: #fff;
  box-shadow: 0 0 12px rgba(255,255,255,0.6);
  animation: none;
  opacity: 1;
}
.recording-timer {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
  letter-spacing: 2px;
}
.recording-hint {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}
.recording-indicator.cancelling .recording-hint {
  color: #fff;
  font-weight: 600;
}

/* ===== 表情パネル ===== */
.emoji-panel {
  display: flex;
  padding: 10px 12px;
  background: var(--glass-bg-strong, rgba(255,255,255,0.9));
  backdrop-filter: blur(12px) saturate(1.2);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  animation: emojiPanelSlideUp 0.18s ease;
  max-height: 280px;
  overflow-y: auto;
}
@keyframes emojiPanelSlideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.emoji-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  width: 100%;
}
.emoji-item {
  width: 100%;
  aspect-ratio: 1;
  font-size: 24px;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s ease;
  -webkit-tap-highlight-color: transparent;
  padding: 0;
  line-height: 1;
}
.emoji-item:hover {
  background: rgba(18,183,245,0.12);
  transform: scale(1.1);
}
.emoji-item:active {
  background: rgba(18,183,245,0.22);
  transform: scale(0.95);
}

/* ===== 文件预览条 ===== */
.file-preview {
  background: rgba(18,183,245,0.06);
  border: 1.5px solid rgba(18,183,245,0.2);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--primary-dark);
  margin-bottom: 4px;
}
.file-preview span {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-preview-remove {
  background: none;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  font-size: 18px;
  padding: 2px 6px;
  line-height: 1;
}
.file-preview-remove:hover { color: var(--danger); }
.input-area .file-preview { flex-basis: 100%; width: 100%; }

/* ===== 文件消息 ===== */
.msg-file {
  display: flex; align-items: center; gap: 10px; padding: 4px 0;
}
.msg-file-icon { font-size: 38px; flex-shrink: 0; }
.msg-file-info { min-width: 0; }
.msg-file-name {
  font-size: 13px; font-weight: 500; word-break: break-all;
}
.msg-file-actions { margin-top: 4px; font-size: 12px; }
.msg-file-actions a {
  color: inherit; text-decoration: underline; cursor: pointer;
  opacity: 0.8;
}

/* ===== 语音消息气泡 ===== */
.voice-bubble {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 80px;
  cursor: pointer;
  padding: 2px 0;
}
.voice-play-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(0,0,0,0.08);
  color: inherit;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
  transition: all 0.15s ease;
}
.message-group.self .voice-play-btn {
  background: rgba(255,255,255,0.25);
}
.voice-play-btn:hover {
  transform: scale(1.08);
}
.voice-play-btn:active {
  transform: scale(0.94);
}
.voice-waveform {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 28px;
  flex: 1;
  min-width: 40px;
}
.voice-bar {
  width: 3px;
  background: rgba(0,0,0,0.15);
  border-radius: 2px;
  transition: height 0.3s ease;
}
.message-group.self .voice-bar {
  background: rgba(255,255,255,0.4);
}
.voice-bar:nth-child(1) { height: 8px; }
.voice-bar:nth-child(2) { height: 14px; }
.voice-bar:nth-child(3) { height: 20px; }
.voice-bar:nth-child(4) { height: 26px; }
.voice-bar:nth-child(5) { height: 22px; }
.voice-bar:nth-child(6) { height: 16px; }
.voice-bar:nth-child(7) { height: 10px; }
.voice-bar:nth-child(8) { height: 6px; }

.voice-duration {
  font-size: 11px;
  font-weight: 500;
  opacity: 0.7;
  white-space: nowrap;
  margin-left: 4px;
}
.message-group.self .voice-duration {
  opacity: 0.85;
}

/* 隐藏的 audio 元素作为音频源 */
.voice-audio-hidden {
  display: none;
}

/* ===== 图片消息 ===== */
.msg-image {
  max-width: 100%; max-height: 260px;
  border-radius: var(--radius);
  cursor: pointer;
  display: block;
  object-fit: cover;
  transition: transform var(--transition-fast);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.msg-image:hover { transform: scale(1.03); }

.image-viewer-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
}
.image-viewer-overlay img {
  max-width: 90vw; max-height: 90vh; object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

/* ===== 底部导航栏 — 毛玻璃 ===== */
.bottom-nav {
  height: var(--nav-height);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  flex-shrink: 0;
  padding-bottom: env(safe-area-inset-bottom, 0);
  box-shadow: 0 -1px 4px rgba(0,0,0,0.03);
}

.nav-item {
  flex: 1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  cursor: pointer;
  position: relative;
  padding: 6px 0;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}
.nav-item.active { color: var(--primary); }
.nav-item:active { transform: scale(0.95); }

.nav-icon { font-size: 24px; line-height: 1; margin-bottom: 3px; }
.nav-label { font-size: 10px; font-weight: 500; }

.nav-badge {
  position: absolute;
  top: 3px; left: 55%;
  background: var(--danger);
  color: #fff;
  font-size: 10px; font-weight: 600;
  min-width: 18px; height: 18px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 5px;
  border: 2px solid var(--white);
  transform: translateX(-50%);
  box-shadow: 0 2px 6px rgba(239,68,68,0.3);
}

/* ===== 头像颜色 ===== */
.avatar-c0 { background: linear-gradient(135deg, #FF6B6B, #ee5a24); }
.avatar-c1 { background: linear-gradient(135deg, #FFB347, #FF6B6B); }
.avatar-c2 { background: linear-gradient(135deg, #48c6ef, #6f86d6); }
.avatar-c3 { background: linear-gradient(135deg, #10b981, #059669); }
.avatar-c4 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.avatar-c5 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.avatar-c6 { background: linear-gradient(135deg, #fa709a, #fee140); }
.avatar-c7 { background: linear-gradient(135deg, #a18cd1, #fbc2eb); }
.avatar-img {
  width: 100%; height: 100%; border-radius: 50%; object-fit: cover;
}

/* ===== 弹窗 — 毛玻璃 ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 30;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
}

.modal {
  position: fixed; inset: 0; z-index: 110;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
}

.modal-content {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-radius: var(--radius-xl);
  width: 380px; max-width: 90vw; max-height: 80vh;
  display: flex; flex-direction: column;
  box-shadow:
    0 20px 60px rgba(0,0,0,0.15),
    0 2px 8px rgba(0,0,0,0.06),
    inset 0 1px 0 rgba(255,255,255,0.5);
  border: 1px solid var(--glass-border);
  overflow: hidden;
}

.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.3);
}
.modal-header h3 {
  font-size: 17px; font-weight: 600; margin: 0;
}
.modal-x-btn {
  background: none; border: none;
  font-size: 22px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.modal-x-btn:hover { background: rgba(0,0,0,0.05); }

/* ====== 通用弹窗 (替代 alert/confirm/prompt) ====== */
.app-dialog-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
}
.app-dialog-overlay.show { display: flex; animation: dialogFadeIn .2s ease; }
@keyframes dialogFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.app-dialog {
  background: #fff;
  border-radius: 14px;
  width: 300px; max-width: 88vw;
  box-shadow: 0 12px 40px rgba(0,0,0,0.18);
  overflow: hidden;
  animation: dialogPopIn .25s ease;
}
@keyframes dialogPopIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.app-dialog-body {
  padding: 28px 22px 10px;
  text-align: center;
}
.app-dialog-icon {
  font-size: 40px; margin-bottom: 12px;
}
.app-dialog-msg {
  font-size: 15px; color: #333;
  line-height: 1.5; white-space: pre-wrap;
}
.app-dialog-input-wrap {
  margin-top: 16px; text-align: left;
}
.app-dialog-input {
  width: 100%; padding: 10px 14px;
  border: 1px solid #dcdcdc; border-radius: 8px;
  font-size: 15px; outline: none; box-sizing: border-box;
  transition: border-color .2s;
}
.app-dialog-input:focus { border-color: #12B7F5; }
.app-dialog-input-hint {
  display: block; font-size: 12px; color: #999;
  margin-top: 6px;
}
.app-dialog-btns {
  display: flex; border-top: 1px solid #f0f0f0;
  margin-top: 18px;
}
.app-dialog-btns button {
  flex: 1; padding: 14px 0;
  border: none; background: none;
  font-size: 16px; cursor: pointer;
  transition: background .15s;
}
.app-dialog-btns button:active { background: #f5f5f5; }
.app-dialog-btn-cancel {
  color: #999; border-right: 1px solid #f0f0f0 !important;
}
.app-dialog-btn-confirm {
  color: #12B7F5; font-weight: 600;
}
.app-dialog-btn-danger {
  color: #ff4d4f; font-weight: 600;
}

.modal-body { padding: 22px; overflow-y: auto; flex: 1; }

.modal-card {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  width: 320px; max-width: 90vw;
  text-align: center;
  box-shadow:
    0 20px 60px rgba(0,0,0,0.15),
    0 2px 8px rgba(0,0,0,0.06),
    inset 0 1px 0 rgba(255,255,255,0.5);
  border: 1px solid var(--glass-border);
}

.modal-avatar {
  width: 72px; height: 72px;
  border-radius: 50%; margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 32px; color: #fff; font-weight: 700;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
.modal-name { font-size: 19px; font-weight: 600; margin-bottom: 6px; }
.modal-id { font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.modal-status { font-size: 13px; color: var(--text-secondary); margin-bottom: 20px; }

.modal-chat-btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 15px; font-weight: 600;
  cursor: pointer;
  margin-bottom: 10px;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(18,183,245,0.3);
}
.modal-chat-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(18,183,245,0.4);
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.modal-close-btn:hover { background: rgba(0,0,0,0.04); }

/* ===== 个人设置弹窗 ===== */
#selfProfile .profile-card {
  padding: 20px 24px; display: flex; flex-direction: column; align-items: stretch;
  text-align: left; gap: 0; overflow-y: auto;
}
#selfProfile .profile-card h3 {
  margin: 0 0 24px; font-size: 19px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}

/* 头像区 */
.profile-avatar-section {
  display: flex; flex-direction: column; align-items: center;
  margin-bottom: 24px; position: relative;
}
.profile-avatar {
  width: 88px; height: 88px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 36px; color: #fff; font-weight: 700;
  overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  border: 3px solid #fff; outline: 2px solid rgba(18,183,245,0.15);
  transition: transform var(--transition-fast);
  cursor: pointer; position: relative;
}
.profile-avatar:hover { transform: scale(1.04); }
.profile-avatar::after {
  content: '📷'; position: absolute; bottom: 0; right: 0;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--primary); font-size: 13px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  opacity: 0; transition: opacity var(--transition-fast);
}
.profile-avatar:hover::after { opacity: 1; }
.profile-avatar-upload {
  display: inline-block; cursor: pointer; color: var(--primary);
  font-size: 13px; padding: 6px 16px; border-radius: 20px;
  margin-top: 10px; transition: all var(--transition-fast);
  background: rgba(18,183,245,0.06); font-weight: 500;
}
.profile-avatar-upload:hover { background: rgba(18,183,245,0.13); }

/* 表单字段 */
.profile-field {
  text-align: left; margin-bottom: 16px; position: relative;
}
.profile-field label {
  display: block; font-size: 12px; color: var(--text-light);
  margin-bottom: 5px; font-weight: 600; letter-spacing: 0.4px;
  text-transform: uppercase;
}
.profile-field input,
.profile-field select {
  width: 100%; padding: 11px 14px;
  border: 1.5px solid var(--border-strong); border-radius: 10px;
  font-size: 14px; font-family: inherit; box-sizing: border-box;
  outline: none; transition: all var(--transition-fast);
  background: #fafbfc;
}
.profile-field input:focus,
.profile-field select:focus {
  border-color: var(--primary); background: #fff;
  box-shadow: 0 0 0 3px var(--primary-glow);
}
.profile-field select {
  appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  padding-right: 36px;
}
.profile-field-counter {
  position: absolute; right: 4px; bottom: -18px;
  font-size: 11px; color: var(--text-light);
}
.profile-field-half { display: flex; gap: 12px; }
.profile-half-item { flex: 1; }
.profile-half-item label {
  display: block; font-size: 12px; color: var(--text-light);
  margin-bottom: 5px; font-weight: 600; letter-spacing: 0.4px;
  text-transform: uppercase;
}
.profile-half-item input {
  width: 100%; padding: 11px 14px; border: 1.5px solid var(--border-strong);
  border-radius: 10px; font-size: 14px; font-family: inherit;
  outline: none; box-sizing: border-box; transition: all var(--transition-fast);
  background: #fafbfc;
}
.profile-half-item input:focus {
  border-color: var(--primary); background: #fff;
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.profile-error {
  color: var(--danger); font-size: 12px; min-height: 18px;
  margin-bottom: 8px; text-align: center;
}

/* 按钮 */
.profile-buttons { display: flex; gap: 10px; margin-top: 4px; }
.profile-buttons .modal-close-btn {
  flex: 1; padding: 12px; border: 1.5px solid var(--border-strong);
  border-radius: 10px; font-size: 14px; font-weight: 500;
  background: #fff; color: var(--text-secondary);
  transition: all var(--transition-fast);
}
.profile-buttons .modal-close-btn:hover { background: #f5f5f5; }
.profile-buttons .modal-chat-btn {
  flex: 2; padding: 12px; border-radius: 10px;
  font-size: 14px; font-weight: 700; margin: 0;
  background: var(--primary); color: #fff; border: none;
  box-shadow: 0 4px 14px rgba(18,183,245,0.3);
  transition: all var(--transition-fast);
}
.profile-buttons .modal-chat-btn:hover {
  transform: translateY(-1px); box-shadow: 0 6px 20px rgba(18,183,245,0.4);
}
.profile-buttons .modal-chat-btn:active { transform: scale(0.97); }

/* ===== 移动端默认：桌面UI隐藏 ===== */
.desktop-sidebar { display: none; }
.desktop-layout {
  display: flex; flex-direction: column; flex: 1; overflow: hidden;
}
.desktop-panel { flex: 1; overflow: hidden; position: relative; }
.desktop-panel-header { display: none; }
.desktop-chat {
  position: fixed; inset: 0; z-index: 100; pointer-events: none;
}
.chat-empty { display: none; }

/* ========================================
   响应式：桌面端三栏布局 (>768px)
   NT QQ 风格：深色侧栏 + 毛玻璃面板
   ======================================== */
@media (min-width: 769px) {
  /* 隐藏移动端元素 */
  .top-bar { display: none; }
  .bottom-nav { display: none; }

  /* 主界面 — flex row */
  .chat-page {
    flex-direction: row;
    max-width: none;
    margin: 0;
    border: none;
    border-radius: 0;
    height: 100vh;
    height: 100dvh;
    background: var(--bg);
  }

  /* ===== 左侧图标导航栏 — 深色毛玻璃 ===== */
  .desktop-sidebar {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100%;
    background: linear-gradient(180deg, #1a2332 0%, #1e2d3d 50%, #1a2332 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 16px 0 0;
    gap: 4px;
    z-index: 20;
    overflow: hidden;
    box-shadow: 2px 0 20px rgba(0,0,0,0.08);
    border-right: 1px solid rgba(255,255,255,0.06);
  }

  .ds-avatar {
    width: 42px; height: 42px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; color: #fff;
    cursor: pointer;
    background: rgba(255,255,255,0.1);
    transition: all var(--transition-fast);
    margin-bottom: 16px;
    flex-shrink: 0;
    overflow: hidden;
    border: 2px solid rgba(255,255,255,0.08);
  }
  .ds-avatar:hover {
    background: rgba(255,255,255,0.2);
    transform: scale(1.05);
  }
  .ds-avatar .avatar-img {
    width: 100%; height: 100%; border-radius: 50%; object-fit: cover;
  }

  .ds-nav-item {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    color: rgba(255,255,255,0.55);
  }
  .ds-nav-item:hover {
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.8);
  }
  .ds-nav-item.active {
    background: rgba(255,255,255,0.12);
    color: #fff;
  }

  .ds-icon { font-size: 24px; line-height: 1; }

  .ds-badge {
    position: absolute;
    top: 4px; right: 4px;
    background: #ff4d4f;
    color: #fff;
    font-size: 10px; font-weight: 600;
    min-width: 18px; height: 18px; border-radius: 9px;
    display: flex; align-items: center; justify-content: center;
    padding: 0 5px;
    box-shadow: 0 2px 6px rgba(255,77,79,0.4);
  }

  .ds-nav-bottom { margin-top: auto; }

  .ds-logout {
    width: 38px; height: 38px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.4);
    font-size: 16px;
    cursor: pointer;
    margin: 8px 0 14px;
    transition: all var(--transition-fast);
    flex-shrink: 0;
  }
  .ds-logout:hover {
    background: rgba(239,68,68,0.4);
    color: #fff;
  }

  /* ===== 两栏布局容器 ===== */
  .desktop-layout {
    display: flex;
    flex-direction: row;
    flex: 1;
    overflow: hidden;
    background: var(--bg);
  }

  /* ===== 中间面板 — 毛玻璃列表 ===== */
  .desktop-panel {
    width: var(--panel-width);
    min-width: 280px;
    max-width: 380px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    overflow: hidden;
    flex: none;
  }

  .desktop-panel-header {
    display: flex !important;
    height: 56px; min-height: 56px;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.3);
  }

  .desktop-panel-title {
    font-size: 18px; font-weight: 700;
    color: var(--text);
    letter-spacing: -0.2px;
  }

  /* 面板内 tab-panel 在桌面端改为普通流式 */
  .desktop-panel .tab-panel {
    position: static;
    flex: 1;
    overflow-y: auto;
  }

  /* ===== 右侧聊天面板 — 柔和背景 ===== */
  .desktop-chat {
    position: relative;
    z-index: auto;
    pointer-events: auto;
    flex: 1;
    display: flex !important;
    flex-direction: column;
    overflow: hidden;
    background:
      radial-gradient(ellipse at 50% 30%, rgba(18,183,245,0.04), transparent 60%),
      var(--bg);
  }

  /* 空状态 */
  .chat-empty {
    position: absolute; inset: 0;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    color: #d1d5db;
    user-select: none;
    pointer-events: none;
  }
  .chat-empty-icon { font-size: 72px; margin-bottom: 16px; opacity: 0.6; }
  .chat-empty-text { font-size: 15px; color: #c4c9d0; }

  /* 聊天浮层在桌面端改为内嵌 */
  .chat-overlay {
    position: static;
    transform: none !important;
    transition: none;
    display: flex;
    flex-direction: column;
    flex: 1;
    background: transparent;
  }
  .chat-overlay:not(.open) { display: none; }

  /* 桌面端隐藏返回按钮 */
  .chat-back-btn { display: none !important; }

  /* 桌面端联系人资料面板：静态内嵌 */
  .contact-profile {
    position: static;
    transform: none;
    transition: none;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: auto;
  }
  .profile-header { display: none; }
  .contact-profile .profile-card { flex: none; }
  #selfProfile .profile-card { flex: 1; max-width: 480px; width: 100%; }
  #groupDetailPanel {
    position: static;
    transform: none;
    transition: none;
    flex: 1;
    display: flex;
    overflow-y: auto;
    z-index: auto;
  }
  #groupDetailPanel .cp-header { display: flex; }
}

/* ========== 联系人资料面板（移动端滑动浮层，桌面端大面板） ========== */
.contact-profile {
  position: fixed; inset: 0; z-index: 25;
  background: var(--bg);
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease-out);
  display: flex;
  pointer-events: auto;
  overflow-y: auto;
}
.contact-profile.open { transform: translateX(0); }

#groupDetailPanel {
  position: fixed; inset: 0; z-index: 105;
  background: var(--bg);
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease-out);
  display: flex;
  pointer-events: auto;
  overflow-y: auto;
}
#groupDetailPanel.open { transform: translateX(0); }

/* ========== 群详情面板内部样式 ========== */
#groupDetailPanel .cp-header {
  height: var(--topbar-height);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  color: var(--text);
  display: flex;
  align-items: center;
  padding: 0 12px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}
#groupDetailPanel .cp-header h3 {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
}
#groupDetailPanel .cp-close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
#groupDetailPanel .cp-close-btn:hover {
  background: rgba(0,0,0,0.06);
  color: var(--text);
}

#groupDetailPanel .cp-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 30px 20px 48px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
#groupDetailPanel .cp-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  font-size: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 4px 20px rgba(18,183,245,0.15);
}
#groupDetailPanel .cp-name {
  font-size: 21px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.2px;
}
#groupDetailPanel .cp-id {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
#groupDetailPanel .cp-status {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  background: var(--glass-bg-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
}
#groupDetailPanel .cp-section-title {
  width: 100%;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 16px 0 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}

/* ====== 成员预览条 ====== */
.member-preview-strip {
  display: flex; gap: 8px; padding: 8px 0;
  cursor: pointer; align-items: center;
}
.member-preview-strip:active { opacity: 0.7; }
/* 群通知中的入群申请操作按钮 */
.notif-join-actions {
  display: flex; gap: 8px; margin-top: 8px;
}
.notif-btn-approve {
  padding: 5px 16px; border: none; border-radius: 14px;
  background: var(--primary, #12B7F5); color: #fff;
  font-size: 12px; cursor: pointer;
}
.notif-btn-approve:disabled { opacity: 0.5; cursor: default; }
.notif-btn-reject {
  padding: 5px 16px; border: 1px solid #ddd; border-radius: 14px;
  background: #fff; color: #999; font-size: 12px; cursor: pointer;
}
.notif-btn-reject:disabled { opacity: 0.5; cursor: default; }
.member-preview-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  font-size: 13px; font-weight: 600; color: #fff;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  position: relative;
}
.member-preview-avatar .avatar-img {
  width: 100%; height: 100%; border-radius: 50%; object-fit: cover;
}
.member-preview-more {
  width: 36px; height: 36px; border-radius: 50%;
  background: #f0f0f0; color: #999;
  font-size: 12px; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
}
.member-preview-count {
  font-size: 12px; color: #999; cursor: pointer;
  padding: 4px 0 8px;
}
.member-preview-count:active { opacity: 0.7; }

/* ====== 成员列表二级页 ====== */
.member-page {
  width: 100%;
  animation: mpSlideIn .2s ease;
}
@keyframes mpSlideIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}
.member-page-back {
  font-size: 14px; color: #12B7F5;
  padding: 8px 0 12px;
  cursor: pointer; user-select: none;
}
.member-page-back:active { opacity: 0.6; }
.member-page-list { width: 100%; }

.member-row {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 4px;
  border-bottom: 1px solid #f5f5f5;
}
.member-row-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  font-size: 14px; font-weight: 600; color: #fff;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; overflow: hidden;
  position: relative;
}
.member-row-avatar .avatar-img {
  width: 100%; height: 100%; border-radius: 50%; object-fit: cover;
}
.member-row-info {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column; gap: 1px;
}
.member-row-name {
  font-size: 14px; color: #333; font-weight: 500;
}
.member-row-role-tag {
  font-size: 10px; font-weight: 500;
  padding: 0 4px; border-radius: 2px;
  margin-left: 4px; vertical-align: middle;
}
.member-row-mute {
  font-size: 11px; color: #ff6b35;
}
.member-row-btns {
  display: flex; gap: 4px; flex-shrink: 0;
}
.member-row-btns button {
  width: 30px; height: 30px; border-radius: 50%;
  border: none; font-size: 14px; cursor: pointer;
  background: #f5f5f5;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s;
}
.member-row-btns button:active { transform: scale(0.9); }
.member-row-btns .row-btn-mute   { background: #f0f7ff; }
.member-row-btns .row-btn-unmute { background: #fff3e0; }
.member-row-btns .row-btn-kick   { background: #fff1f0; }
.member-row-btns .row-btn-promote { background: #f6ffed; }
.member-row-btns .row-btn-demote  { background: #fffbe6; }

/* 角色角标 */
.member-role-tag {
  position: absolute;
  bottom: -1px; right: -1px;
  font-size: 8px; line-height: 1;
  padding: 1px 2px; border-radius: 3px;
  color: #fff; font-weight: 600;
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
  pointer-events: none;
}
.member-role-tag.role-owner { background: #f5a623; }
.member-role-tag.role-admin { background: #52c41a; }
.member-info {
  flex: 1;
  min-width: 0;
}
.member-name {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
}
.role-badge {
  font-size: 11px;
  color: var(--primary);
  background: rgba(18,183,245,0.1);
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 6px;
  font-weight: 500;
}
.role-badge-admin {
  color: #e67e22;
  background: rgba(230,126,34,0.1);
}

/* 群成员管理按钮 */
.member-actions {
  display: flex;
  gap: 4px;
  margin-left: 6px;
}
.member-action-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  line-height: 1;
  padding: 0;
  transition: all var(--transition-fast);
}
.member-action-btn:hover {
  background: var(--bg);
  border-color: var(--border-strong);
}
.member-action-kick:hover {
  background: rgba(239,68,68,0.08);
  border-color: var(--danger);
  color: var(--danger);
}
.member-action-mute:hover {
  background: rgba(230,126,34,0.08);
  border-color: #e67e22;
}

/* 群系统消息（禁言/踢出/解禁公示） */
.message-system {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 10px 0;
}
.system-bubble {
  background: rgba(0,0,0,0.04);
  color: var(--text-light);
  font-size: 12px;
  padding: 5px 14px;
  border-radius: 12px;
  text-align: center;
}
.system-time {
  font-size: 11px;
  color: var(--text-light);
  margin-top: 2px;
}

/* 群详情按钮区 */
#groupDetailPanel .cp-actions {
  margin-top: 28px;
  width: 100%;
  display: flex;
  justify-content: center;
}
.btn-danger {
  padding: 11px 36px;
  border: none;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(239,68,68,0.25);
}
.btn-danger:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(239,68,68,0.35);
}
.btn-danger:active {
  transform: translateY(0);
}

/* 消息右键菜单 */
.msg-context-menu {
  position: fixed;
  z-index: 10000;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.08);
  min-width: 128px;
  padding: 6px 0;
  overflow: hidden;
  border: 1px solid var(--glass-border);
}
.msg-context-item {
  padding: 9px 18px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text);
  white-space: nowrap;
  transition: background var(--transition-fast);
}
.msg-context-item:hover {
  background: rgba(18,183,245,0.08);
}
.msg-context-item.danger {
  color: var(--danger);
}

/* 已撤回消息 */
.msg-recalled {
  color: var(--text-light);
  font-style: italic;
  font-size: 13px;
  padding: 4px 0;
}

/* ===== 消息引用 ===== */
/* 输入区上方引用预览条 */
.quote-preview {
  display: flex; align-items: center; gap: 10px;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  padding: 8px 14px;
}
.quote-preview-line {
  width: 3px; height: 32px; border-radius: 2px;
  background: var(--primary);
  flex-shrink: 0;
}
.quote-preview-body { flex: 1; min-width: 0; }
.quote-preview-name { font-size: 12px; font-weight: 600; color: var(--primary); margin-bottom: 1px; }
.quote-preview-text { font-size: 12px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.quote-preview-remove {
  background: none; border: none; color: var(--text-light);
  font-size: 16px; cursor: pointer; padding: 4px 8px;
  border-radius: var(--radius-sm); flex-shrink: 0;
}
.quote-preview-remove:hover { background: rgba(0,0,0,0.06); color: var(--text); }

/* 消息内引用气泡 */
.msg-quote {
  display: flex; align-items: stretch; gap: 8px;
  margin-bottom: 4px; cursor: pointer;
}
.msg-quote-line {
  width: 3px; min-height: 24px; border-radius: 2px;
  background: var(--primary-light, #9fd9ff);
  flex-shrink: 0;
}
.msg-quote-body {
  flex: 1; min-width: 0;
  background: rgba(0,0,0,0.03); border-radius: var(--radius);
  padding: 4px 8px;
}
.msg-quote-name { font-size: 11px; font-weight: 600; color: var(--primary); display: block; }
.msg-quote-text { font-size: 11px; color: var(--text-secondary); display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* @提及选择器 */
.at-picker {
  position: fixed;
  bottom: 80px;
  left: 16px;
  right: 16px;
  max-width: 280px;
  max-height: 220px;
  overflow-y: auto;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  z-index: 9999;
  padding: 4px 0;
}
.at-picker-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.at-picker-item:hover,
.at-picker-item:active {
  background: rgba(18,183,245,0.07);
}
.at-picker-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.at-picker-empty {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-light);
  text-align: center;
}

/* @提及高亮 */
.mention-tag {
  color: var(--primary);
  font-weight: 500;
}

/* 资料浮层头部 */
.profile-header {
  height: var(--topbar-height);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  display: flex;
  align-items: center;
  padding: 0 12px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.profile-back-btn {
  background: none; border: none;
  color: var(--text);
  font-size: 22px; cursor: pointer;
  padding: 6px 8px; margin-right: 6px;
  border-radius: var(--radius-sm);
}
.profile-back-btn:hover { background: rgba(0,0,0,0.04); }
.profile-header-title { font-size: 16px; font-weight: 600; }

/* 资料卡片内容区 */
.profile-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  padding: 36px 24px 48px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  gap: 0;
}

/* 精美分割线 */
.profile-divider {
  width: 60px; height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  border-radius: 2px;
  margin: 24px auto 18px;
  opacity: 0.4;
}

.profile-avatar-lg {
  width: 108px; height: 108px;
  border-radius: 50%;
  margin: 0 auto 24px;
  font-size: 44px; font-weight: 700;
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  box-shadow:
    0 8px 32px rgba(0,0,0,0.12),
    0 2px 6px rgba(0,0,0,0.06);
}
.profile-avatar-lg .avatar-img {
  width: 100%; height: 100%; border-radius: 50%; object-fit: cover;
}

.profile-name-lg {
  font-size: 24px; font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
  letter-spacing: -0.3px;
}

.profile-id-lg {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.profile-status-lg {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.profile-chat-btn {
  display: inline-flex;
  align-items: center; justify-content: center;
  gap: 6px;
  width: 100%;
  max-width: 260px;
  padding: 13px 28px;
  border: none;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 16px; font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-top: 24px;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(18,183,245,0.3);
}
.profile-chat-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(18,183,245,0.4);
}

/* 好友操作按钮组 */
.profile-friend-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
  margin-top: 8px;
}

.profile-add-friend-btn,
.profile-del-friend-btn {
  padding: 11px 28px;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--white);
  color: var(--text);
  font-size: 14px; font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.profile-add-friend-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(18,183,245,0.04);
}
.profile-del-friend-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: rgba(239,68,68,0.04);
}

/* ===== 资料面板新字段 ===== */
.profile-signature {
  margin-bottom: 22px;
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.6;
  max-width: 280px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  flex-wrap: wrap;
}
.signature-quote {
  color: var(--primary);
  font-size: 16px;
  font-weight: 600;
  font-style: normal;
}
.signature-text { word-break: break-word; }
.signature-edit-icon {
  font-style: normal;
  cursor: pointer;
  color: var(--primary);
  font-size: 13px;
  margin-left: 6px;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  transition: background var(--transition-fast);
}
.signature-edit-icon:hover {
  background: rgba(18,183,245,0.1);
}

.profile-signature-edit-input {
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 14px;
  font-style: italic;
  width: 100%;
  max-width: 260px;
  text-align: center;
  outline: none;
  font-family: inherit;
  margin: 0 auto;
}

/* 资料信息行 */
.profile-info-rows {
  width: 100%;
  max-width: 300px;
  margin: 0 auto 18px;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.profile-info-row {
  display: flex;
  align-items: center;
  padding: 13px 18px;
  border-bottom: 1px solid rgba(0,0,0,0.04);
  font-size: 14px;
}
.profile-info-row:last-child { border-bottom: none; }
.profile-info-label {
  color: var(--text-secondary);
  min-width: 60px;
  flex-shrink: 0;
  font-weight: 500;
}
.profile-info-value {
  color: var(--text);
  flex: 1;
  text-align: right;
}

/* ===== Toast 通知 ===== */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  color: var(--text);
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  box-shadow:
    0 8px 32px rgba(0,0,0,0.12),
    0 2px 8px rgba(0,0,0,0.06),
    inset 0 1px 0 rgba(255,255,255,0.5);
  border: 1px solid var(--glass-border);
  animation: toastIn 0.3s var(--ease-spring);
  pointer-events: none;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-12px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ===== 滚动条全局美化 ===== */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.12);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0,0,0,0.2);
}

/* ===== 选中文本颜色 ===== */
::selection {
  background: rgba(18,183,245,0.2);
  color: var(--text);
}

/* ===== 朋友圈 ===== */
.moments-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg);
}

/* 发动态 */
.moments-compose {
  background: var(--glass-bg-light);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.moments-compose textarea {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 14px;
  resize: none;
  min-height: 64px;
  font-family: inherit;
  outline: none;
  transition: all 0.25s ease;
  background: rgba(255,255,255,0.6);
  line-height: 1.6;
}
.moments-compose textarea:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(18,183,245,0.08);
}
.moments-compose-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
}
.moments-img-btn {
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  color: var(--text-secondary);
}
.moments-img-btn:hover {
  background: rgba(18,183,245,0.08);
  color: var(--primary);
}
.moments-img-count {
  font-size: 12px;
  color: var(--text-secondary);
  margin-left: 4px;
}
.moments-post-btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  padding: 7px 22px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 10px rgba(18,183,245,0.2);
}
.moments-post-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(18,183,245,0.3);
}
.moments-post-btn:disabled {
  background: #c0c0c0;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}
.moments-compose-previews {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.moments-preview-item {
  width: 64px;
  height: 64px;
  border-radius: 8px;
  object-fit: cover;
  border: 1.5px solid var(--border);
  position: relative;
}
.moments-preview-remove {
  position: absolute;
  top: -7px; right: -7px;
  width: 20px; height: 20px;
  background: var(--danger);
  color: white;
  border: 2px solid #fff;
  border-radius: 50%;
  font-size: 11px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

/* Timeline */
.moments-timeline {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
  -webkit-overflow-scrolling: touch;
}
.moments-loading,
.moments-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
  font-size: 14px;
}

/* Moment Card */
.moment-card {
  background: var(--white);
  margin: 0;
  padding: 16px;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: background var(--transition-fast);
}
.moment-card:hover {
  background: rgba(18,183,245,0.01);
}
.moment-header {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
}
.moment-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), #e3f2fd);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  margin-right: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.moment-avatar img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.moment-user-info { flex: 1; }
.moment-username {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.1px;
}
.moment-time {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 2px;
}
.moment-delete {
  background: none;
  border: none;
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
  color: var(--text-light);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.moment-delete:hover {
  color: var(--danger);
  background: rgba(239,68,68,0.06);
}

.moment-content {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 12px;
  word-break: break-word;
  white-space: pre-wrap;
}

/* Moment Images Grid */
.moment-images {
  display: grid;
  gap: 4px;
  margin-bottom: 10px;
}
.moment-images.cols-1 { grid-template-columns: 1fr; }
.moment-images.cols-2 { grid-template-columns: 1fr 1fr; }
.moment-images.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.moment-images img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.moment-images img:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

/* Like Bar */
.moment-like-bar {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding: 8px 0;
  font-size: 13px;
  color: var(--text-secondary);
  border-top: 1px solid rgba(0,0,0,0.04);
  margin-bottom: 4px;
  flex-wrap: wrap;
}
.moment-like-heart {
  flex-shrink: 0;
  margin-top: 1px;
}
.moment-like-users {
  flex: 1;
  line-height: 1.5;
}

/* Comments */
.moment-comments {
  padding-top: 8px;
  border-top: 1px solid rgba(0,0,0,0.04);
}
.moment-comment {
  font-size: 13px;
  line-height: 1.6;
  padding: 3px 0;
  color: var(--text);
}
.moment-comment-user {
  font-weight: 600;
  color: var(--primary-dark);
}
.moment-comment-delete {
  background: none;
  border: none;
  font-size: 12px;
  cursor: pointer;
  color: var(--text-light);
  padding: 0 4px;
  visibility: hidden;
  border-radius: 4px;
}
.moment-comment:hover .moment-comment-delete { visibility: visible; }

/* Actions */
.moment-actions {
  display: flex;
  gap: 20px;
  padding-top: 10px;
  border-top: 1px solid rgba(0,0,0,0.04);
}
.moment-action-btn {
  background: none;
  border: none;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px 0;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition-fast);
}
.moment-action-btn:hover { color: var(--primary); }
.moment-action-btn.liked { color: #e74c3c; }

/* Comment Input */
.moment-comment-input-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid rgba(0,0,0,0.04);
}
.moment-comment-input-row input {
  flex: 1;
  border: 1.5px solid var(--border);
  border-radius: 18px;
  padding: 7px 14px;
  font-size: 13px;
  outline: none;
  background: rgba(0,0,0,0.02);
  transition: all 0.25s ease;
}
.moment-comment-input-row input:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(18,183,245,0.06);
}
.moment-comment-submit {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 6px 14px;
  border-radius: 18px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.moment-comment-submit:hover {
  background: var(--primary-dark);
}

/* Mobile Moments */
.is-mobile .moments-panel {
  height: calc(100vh - var(--topbar-height) - var(--nav-height));
}

/* ===== 全局搜索 ===== */
.search-btn {
  width: 34px; height: 34px;
  border: none; background: none; cursor: pointer;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  transition: all var(--transition-fast);
}
.search-btn:hover {
  background: rgba(0,0,0,0.04);
  color: var(--primary);
}

/* 搜索行（查找用户/群组弹窗内） */
.divider {
  display: flex; align-items: center;
  margin: 18px 0;
  color: var(--text-light);
  font-size: 13px;
}
.divider::before, .divider::after {
  content: ''; flex: 1;
  border-top: 1px solid var(--border);
  margin: 0 12px;
}
.search-row {
  display: flex; gap: 8px; margin-top: 12px;
}
.search-row input {
  flex: 1;
  padding: 11px 16px;
  border: 1.5px solid var(--border);
  border-radius: 24px;
  font-size: 14px;
  outline: none;
  transition: all 0.25s ease;
  background: rgba(0,0,0,0.02);
}
.search-row input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(18,183,245,0.08);
}
.search-row button {
  padding: 11px 22px;
  border: none;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}
.search-row button:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* 容器包裹 */
.app-container {
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
}

/* ===== @提及选择器 ===== */
.at-picker {
  position: fixed; bottom: 80px; left: 16px; right: 16px;
  max-width: 280px; max-height: 200px; overflow-y: auto;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
  z-index: 9999; padding: 4px 0;
}
.at-picker-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 14px; cursor: pointer;
  transition: background var(--transition-fast);
}
.at-picker-item:hover { background: rgba(18,183,245,0.06); }
.at-picker-item:active { background: rgba(18,183,245,0.1); }
.at-picker-name {
  font-size: 14px; font-weight: 500; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* ===== @提及高亮 ===== */
.mention-tag {
  color: #1890ff; font-weight: 600;
  background: rgba(24,144,255,0.08); border-radius: 3px; padding: 0 2px;
}
.mention-highlight { background: #e3f0ff !important; border-left: 3px solid #1890ff !important; }
@keyframes atPulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.02); } }
.mentioned-me { animation: atPulse 0.5s ease 3; }
.mentioned-me .msg-bubble { background: #e3f0ff !important; border-left: 3px solid #1890ff !important; }

/* ===== 群公告栏 ===== */
.announcement-bar {
  background: linear-gradient(135deg, #fffbe6, #fff9db);
  border-bottom: 1px solid rgba(255,229,143,0.5);
  padding: 10px 16px; display: flex; align-items: center; gap: 8px;
  flex-shrink: 0; cursor: default;
}
.announcement-bar .ann-icon { font-size: 16px; margin-right: 8px; flex-shrink: 0; }
.announcement-bar .ann-text {
  flex: 1; font-size: 13px; color: #595959;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.announcement-bar .ann-more {
  color: var(--primary); cursor: pointer; font-size: 12px;
  flex-shrink: 0; white-space: nowrap; font-weight: 500;
}
.announcement-bar .ann-more:hover { color: var(--primary-dark); }

/* ===== 群详情公告入口 ===== */
.announcement-entry {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; margin: 4px 0;
  background: rgba(18,183,245,0.04); border-radius: var(--radius-sm);
  border: 1px solid rgba(18,183,245,0.12);
  cursor: pointer; transition: all var(--transition-fast);
}
.announcement-entry:hover {
  background: rgba(18,183,245,0.08);
  border-color: rgba(18,183,245,0.2);
}
.ann-preview {
  flex: 1; font-size: 13px; color: var(--text-secondary);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.ann-manage-btn {
  background: var(--primary); color: #fff; border: none;
  border-radius: var(--radius-sm); padding: 4px 12px;
  font-size: 12px; cursor: pointer; font-weight: 500;
  flex-shrink: 0; transition: all var(--transition-fast);
}
.ann-manage-btn:hover { background: var(--primary-dark); }

.announcement-form textarea {
  width: 100%; min-height: 80px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-strong); padding: 10px 14px;
  font-size: 14px; font-family: inherit; resize: vertical;
  outline: none; line-height: 1.5;
}
.announcement-form textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
.announcement-item { padding: 14px 0; border-bottom: 1px solid rgba(0,0,0,0.04); }
.announcement-item:first-child { padding-top: 0; }
.announcement-item:last-child { border-bottom: none; padding-bottom: 0; }
.announcement-item-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.announcement-item-author { font-size: 14px; font-weight: 600; color: var(--text); }
.announcement-item-time { font-size: 12px; color: var(--text-light); margin-left: auto; }
.announcement-item-content {
  font-size: 14px; color: #555; line-height: 1.6;
  word-break: break-word; padding-left: 46px;
}
.ann-delete-btn {
  background: none; border: none; cursor: pointer; font-size: 16px;
  padding: 2px 6px; opacity: 0.5; transition: opacity var(--transition-fast);
  color: var(--text-secondary);
}
.ann-delete-btn:hover { opacity: 1; color: var(--danger); }

.profile-status-badge {
  display: inline-block; font-size: 12px; padding: 2px 10px;
  border-radius: 10px; font-weight: 500;
}

/* ===== 用户弹窗信息行 ===== */
.modal-signature {
  font-size: 14px; color: var(--text-secondary); font-style: italic;
  margin-bottom: 14px; text-align: center; word-break: break-word; max-width: 240px;
}
.modal-info-rows {
  width: 100%; max-width: 240px; margin: 0 auto 12px;
  background: rgba(255,255,255,0.6); border-radius: var(--radius-sm);
  overflow: hidden; border: 1px solid var(--border);
}
.modal-info-row { display: flex; align-items: center; padding: 9px 14px; border-bottom: 1px solid var(--border); font-size: 13px; }
.modal-info-row:last-child { border-bottom: none; }
.modal-info-label { color: var(--text-secondary); min-width: 48px; flex-shrink: 0; }
.modal-info-value { color: var(--text); flex: 1; text-align: right; }

/* ===== 聊天头部信息 ===== */
.chat-header-info { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.chat-header-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600; color: #fff; flex-shrink: 0;
  overflow: hidden; box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.chat-header-avatar .avatar-img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.chat-header-name { font-size: 15px; font-weight: 600; color: var(--text); }
.chat-header-status { font-size: 12px; color: var(--text-light); }
.chat-header-status.online { color: var(--online); font-weight: 500; }
.chat-header-status.offline { color: var(--offline); }
.online { color: var(--online); }
.offline { color: var(--offline); }

/* ===== 输入中动画 ===== */
.typing-indicator { font-size: 12px; color: var(--primary); font-style: italic; animation: typingPulse 1.5s ease-in-out infinite; }
@keyframes typingPulse { 0%, 100% { opacity: 0.6; } 50% { opacity: 1; } }

/* ===== 消息右键菜单 ===== */
.msg-context-menu {
  position: fixed; z-index: 10000;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-sm); box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  min-width: 120px; padding: 4px 0; overflow: hidden;
  border: 1px solid var(--glass-border);
}
.msg-context-item { padding: 8px 16px; cursor: pointer; font-size: 14px; color: var(--text); white-space: nowrap; transition: background var(--transition-fast); }
.msg-context-item:hover { background: rgba(0,0,0,0.04); }
.msg-context-item:active { background: rgba(0,0,0,0.06); }
.msg-recalled { color: var(--text-light); font-style: italic; font-size: 13px; padding: 4px 0; }

/* ===== 群成员详情 ===== */
.member-info { flex: 1; min-width: 0; }
.member-name { font-size: 15px; color: var(--text); }
.role-badge { font-size: 11px; color: var(--primary); background: rgba(18,183,245,0.1); padding: 2px 8px; border-radius: 10px; margin-left: 6px; font-weight: 500; }
.role-badge-admin { color: #e67e22; background: rgba(230,126,34,0.08); }
.member-actions { display: flex; gap: 4px; margin-left: 6px; }
.member-action-btn {
  width: 28px; height: 28px; border-radius: 50%;
  border: 1px solid var(--border-strong); background: var(--white);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: 13px; line-height: 1; padding: 0; transition: all var(--transition-fast);
}
.member-action-btn:hover { background: rgba(0,0,0,0.04); border-color: var(--text-light); }
.member-action-kick:hover { background: #fee; border-color: var(--danger); }
.member-action-mute:hover { background: rgba(230,126,34,0.08); border-color: #e67e22; }

/* ===== 群系统消息 ===== */
.message-system { display: flex; flex-direction: column; align-items: center; margin: 12px 0; }
.system-bubble { background: rgba(0,0,0,0.04); color: var(--text-light); font-size: 12px; padding: 4px 14px; border-radius: 10px; text-align: center; }
.system-time { font-size: 11px; color: var(--text-light); margin-top: 2px; }

/* ===== 全局搜索浮层 ===== */
.search-overlay { position: fixed; inset: 0; z-index: 40; display: flex; align-items: flex-start; justify-content: center; padding-top: 12vh; }
.search-overlay-mask { position: absolute; inset: 0; background: rgba(0,0,0,0.25); backdrop-filter: blur(2px); }
.search-panel {
  position: relative; z-index: 1;
  background: var(--glass-bg-strong); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-radius: var(--radius-lg); width: 420px; max-width: 92vw; max-height: 60vh;
  display: flex; flex-direction: column; box-shadow: 0 16px 48px rgba(0,0,0,0.12);
  border: 1px solid var(--glass-border); overflow: hidden;
}
.search-panel-header { display: flex; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.search-close-btn { background: none; border: none; cursor: pointer; color: var(--text-secondary); font-size: 18px; padding: 4px 8px; margin-right: 8px; border-radius: var(--radius-sm); transition: all var(--transition-fast); }
.search-close-btn:hover { color: var(--text); background: rgba(0,0,0,0.04); }
.search-input { flex: 1; border: 1.5px solid var(--border-strong); border-radius: var(--radius-lg); padding: 9px 16px; font-size: 14px; outline: none; background: rgba(0,0,0,0.02); transition: all var(--transition-fast); }
.search-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); background: var(--white); }
.search-tabs { display: flex; padding: 8px 18px; gap: 16px; border-bottom: 1px solid var(--border); }
.search-tab { font-size: 13px; font-weight: 500; color: var(--text-secondary); cursor: pointer; padding: 4px 0; border-bottom: 2px solid transparent; transition: all var(--transition-fast); }
.search-tab:hover { color: var(--text); }
.search-tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.search-results { flex: 1; overflow-y: auto; padding: 8px 0; }
.search-section-label { padding: 12px 18px 6px; font-size: 12px; font-weight: 600; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.5px; }
.search-result-item { display: flex; align-items: center; gap: 12px; padding: 10px 18px; cursor: pointer; transition: background var(--transition-fast); }
.search-result-item:hover { background: rgba(0,0,0,0.03); }
.search-result-item:active { background: rgba(0,0,0,0.05); }
.sri-avatar { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 18px; color: #fff; flex-shrink: 0; box-shadow: 0 2px 6px rgba(0,0,0,0.08); }
.sri-info { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.sri-name { font-size: 14px; font-weight: 500; color: var(--text); }
.sri-sub { font-size: 12px; color: var(--text-light); margin-top: 1px; }
.sri-tag { font-size: 11px; font-weight: 500; color: var(--primary); background: rgba(18,183,245,0.1); padding: 2px 8px; border-radius: 10px; flex-shrink: 0; }
.search-empty { text-align: center; color: var(--text-light); padding: 40px 20px; font-size: 14px; }

/* ===== 查找用户 / 搜索群聊 公用样式 ===== */
.find-user-card { width: 360px; max-width: 90vw; }
.find-user-search { display: flex; gap: 8px; padding: 12px 0; }
.find-user-search input { flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; outline: none; }
.find-user-search input:focus { border-color: var(--primary); }
.find-user-search button { padding: 8px 16px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-size: 13px; font-weight: 600; cursor: pointer; }
.find-user-search button:active { opacity: 0.85; }
.find-user-list { max-height: 320px; overflow-y: auto; }
.find-user-empty { text-align: center; color: var(--text-light); padding: 32px 16px; font-size: 13px; }

.find-user-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: 10px; margin: 2px 0;
  transition: background var(--transition-fast); cursor: default;
}
.find-user-item:hover { background: rgba(18,183,245,0.04); }
.find-user-item-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #fff; font-weight: 600;
  flex-shrink: 0; overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.find-user-item-info { flex: 1; min-width: 0; }
.find-user-item-name { font-size: 14px; font-weight: 500; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.find-user-item-id { font-size: 12px; color: var(--text-light); margin-top: 2px; }
.find-user-item-btn {
  padding: 6px 14px; border-radius: 16px; border: none;
  font-size: 12px; font-weight: 600; cursor: pointer; flex-shrink: 0;
  background: var(--primary); color: #fff; transition: all var(--transition-fast);
}
.find-user-item-btn:hover { opacity: 0.9; }
.find-user-item-btn:active { transform: scale(0.96); }
.find-user-item-btn.is-friend,
.find-user-item-btn:disabled { background: #e8e8e8; color: #999; cursor: default; }
.find-user-item-btn.requested { background: #52c41a; }

/* ===== 好友申请 ===== */
.friend-requests-card { width: 380px; max-width: 90vw; }
.friend-requests-list { max-height: 380px; overflow-y: auto; }

.friend-request-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px; border-radius: 10px; margin: 4px 0;
  background: rgba(18,183,245,0.03); border: 1px solid rgba(18,183,245,0.08);
}
.request-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #fff; font-weight: 600;
  flex-shrink: 0; overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.request-info { flex: 1; min-width: 0; }
.request-name { font-size: 14px; font-weight: 500; color: var(--text); }
.request-id { font-size: 12px; color: var(--text-light); margin-top: 2px; }
.request-actions { display: flex; gap: 8px; flex-shrink: 0; }
.request-accept-btn {
  padding: 6px 14px; border-radius: 16px; border: none;
  font-size: 12px; font-weight: 600; cursor: pointer;
  background: var(--primary); color: #fff; transition: all var(--transition-fast);
}
.request-accept-btn:hover { opacity: 0.9; }
.request-accept-btn:active { transform: scale(0.96); }
.request-reject-btn {
  padding: 6px 14px; border-radius: 16px; border: 1px solid #ddd;
  font-size: 12px; font-weight: 500; cursor: pointer;
  background: #fff; color: #999; transition: all var(--transition-fast);
}
.request-reject-btn:hover { border-color: #ff4d4f; color: #ff4d4f; }

/* ===== 群通知 ===== */
.request-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px; border-radius: 10px; margin: 4px 0;
  transition: background var(--transition-fast); cursor: default;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}
.request-item:last-child { border-bottom: none; }
.request-item.unread { background: rgba(18,183,245,0.04); }
.request-item .request-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
  background: #f0f7ff;
}
.request-item .request-info { flex: 1; min-width: 0; }
.request-item .request-name {
  font-size: 13px; color: var(--text); line-height: 1.5;
  display: flex; align-items: center; gap: 6px;
}
.request-item .request-name b { font-weight: 600; color: var(--primary); }
.request-item .request-msg {
  font-size: 11px; color: var(--text-light); margin-top: 2px;
}
.request-item .unread-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #ff4d4f; display: inline-block; flex-shrink: 0;
  margin-left: 4px;
}

/* ===== 群聊搜索弹窗 ===== */
.user-search-results { max-height: 300px; overflow-y: auto; }

/* ===== 头像裁剪弹窗 ===== */
.crop-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.85);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
}
.crop-card {
  width: 340px; max-width: 94vw; max-height: 90vh;
  background: #fff; border-radius: 16px;
  display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,0.3);
}
.crop-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--border-light);
}
.crop-title { font-size: 16px; font-weight: 700; }
.crop-confirm-btn {
  padding: 7px 20px; border: none; border-radius: 8px;
  background: var(--primary); color: #fff; font-size: 14px;
  font-weight: 600; cursor: pointer; transition: all var(--transition-fast);
}
.crop-confirm-btn:hover { filter: brightness(1.08); }
.crop-confirm-btn:active { transform: scale(0.96); }
.crop-close-btn {
  padding: 7px 12px; border: none; border-radius: 8px;
  background: #f0f0f0; color: #666; font-size: 14px;
  font-weight: 600; cursor: pointer; transition: all var(--transition-fast);
  line-height: 1;
}
.crop-close-btn:hover { background: #e0e0e0; color: #333; }
.crop-close-btn:active { transform: scale(0.96); }

.crop-body {
  display: flex; flex-direction: column; align-items: center;
  padding: 20px 18px 16px; gap: 12px;
  user-select: none; -webkit-user-select: none;
}

/* 裁剪视口 — 圆形，深色遮罩外 */
.crop-viewport {
  width: 280px; height: 280px; max-width: 80vw; max-height: 80vw;
  position: relative; overflow: hidden; border-radius: 50%;
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.55);
  cursor: grab; touch-action: none;
  -ms-touch-action: none;
}
.crop-viewport:active { cursor: grabbing; }
.crop-viewport img {
  position: absolute; pointer-events: none;
  will-change: transform;
  top: 0; left: 0;
}

/* 九宫格辅助线 */
.crop-grid {
  position: absolute; inset: 0; pointer-events: none; z-index: 2;
  border-radius: 50%; overflow: hidden;
}
.crop-grid::before, .crop-grid::after {
  content: ''; position: absolute; background: rgba(255,255,255,0.25);
}
.crop-grid::before {
  left: 0; right: 0; top: 33.33%; height: 1px;
  box-shadow: 0 66.66% 0 rgba(255,255,255,0.25);
}
.crop-grid::after {
  top: 0; bottom: 0; left: 33.33%; width: 1px;
  box-shadow: 66.66% 0 0 rgba(255,255,255,0.25);
}

.crop-hint {
  font-size: 13px; color: #999; margin: 0;
}

/* ===== 亲密关系面板 ===== */
.relations-content {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}
.rel-section-title {
  font-size: 13px; color: #999; margin: 20px 0 10px; padding-left: 4px;
  font-weight: 500;
}
.rel-section-title:first-child { margin-top: 0; }

/* 关系卡片 */
.rel-card {
  display: flex; align-items: center; gap: 14px;
  background: #fff; border-radius: 14px; padding: 16px;
  margin-bottom: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  transition: transform 0.15s;
}
.rel-card:active { transform: scale(0.98); }
.rel-avatar {
  width: 52px; height: 52px; border-radius: 50%;
  background: #e8f0fe center/cover no-repeat;
  flex-shrink: 0; position: relative;
}
.rel-avatar.avatar-couple { border: 2.5px solid #ff6b81; }
.rel-avatar.avatar-bestie { border: 2.5px solid #f368e0; }
.rel-avatar.avatar-bro { border: 2.5px solid #3742fa; }

.rel-badge {
  position: absolute; bottom: -4px; right: -4px;
  padding: 1px 6px; border-radius: 10px;
  background: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700; line-height: 1.4;
  box-shadow: 0 1px 4px rgba(0,0,0,0.12);
  white-space: nowrap;
}

.rel-info { flex: 1; min-width: 0; }
.rel-info-name { font-size: 16px; font-weight: 600; color: #1a1a1a; }
.rel-info-type {
  font-size: 13px; color: #888; margin-top: 3px;
}
.rel-info-date {
  font-size: 12px; color: #bbb; margin-top: 2px;
}
.rel-actions {
  display: flex; flex-direction: column; gap: 6px;
}
.rel-action-btn {
  padding: 6px 14px; border-radius: 20px; border: none;
  font-size: 13px; cursor: pointer; white-space: nowrap;
  transition: all 0.15s;
}
.rel-action-accept {
  background: linear-gradient(135deg, #ff6b81, #ff8e9e); color: #fff;
}
.rel-action-accept:active { opacity: 0.85; }
.rel-action-dissolve {
  background: #f5f5f5; color: #e74c3c;
}
.rel-action-dissolve:active { background: #ffebee; }
.rel-action-reject {
  background: #f5f5f5; color: #999;
}
.rel-action-reject:active { background: #e0e0e0; }

/* 空状态 */
.rel-empty {
  text-align: center; padding: 40px 20px; color: #bbb;
}
.rel-empty-icon { font-size: 48px; margin-bottom: 12px; }
.rel-empty-text { font-size: 14px; }

/* 总览操作区 */
.rel-overview-actions {
  display: flex; gap: 10px; margin-top: 14px; margin-bottom: 8px;
}
.rel-overview-btn {
  flex: 1; padding: 12px; border-radius: 12px; border: none;
  font-size: 14px; font-weight: 500; cursor: pointer;
  transition: all 0.15s;
}
.rel-overview-btn:active { transform: scale(0.97); }
.rel-btn-create {
  background: linear-gradient(135deg, #667eea, #764ba2); color: #fff;
}
.rel-btn-invite {
  background: #f0f4ff; color: #5b6abf;
}

/* 邀请好友弹窗 */
.rel-invite-search {
  padding: 8px; margin-bottom: 0;
}
.rel-invite-search input {
  width: 100%; padding: 10px 14px; border-radius: 20px;
  border: 1.5px solid #e0e0e0; font-size: 14px; box-sizing: border-box;
  outline: none;
}
.rel-invite-search input:focus { border-color: #667eea; }
.rel-friend-list {
  max-height: 300px; overflow-y: auto; padding: 0 8px;
}
.rel-friend-item {
  display: flex; align-items: center; gap: 12px; padding: 10px 8px;
  border-radius: 10px; cursor: pointer; transition: background 0.15s;
  margin-bottom: 2px;
}
.rel-friend-item:hover { background: #f5f7ff; }
.rel-friend-item:active { background: #eef0ff; }
.rel-friend-item.selected,
.rel-friend-item.rel-friend-selected { background: #eef0ff; }
.rel-friend-avatar {
  width: 42px; height: 42px; border-radius: 50%;
  background: #e8f0fe center/cover no-repeat; flex-shrink: 0;
}
.rel-friend-name { font-size: 15px; font-weight: 500; color: #333; }
.rel-friend-id { font-size: 12px; color: #aaa; }

/* 关系类型选择弹窗 */
.rel-type-grid {
  display: flex; gap: 12px; padding: 0 4px;
}
.rel-type-option {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  padding: 16px 8px; border-radius: 14px; border: 2px solid transparent;
  cursor: pointer; transition: all 0.2s; background: #f8f9ff;
}
.rel-type-option:hover { background: #eef0ff; }
.rel-type-option.selected {
  border-color: #667eea; background: #eef0ff;
}
.rel-type-emoji { font-size: 32px; margin-bottom: 6px; }
.rel-type-label { font-size: 14px; font-weight: 500; color: #555; }
.rel-type-desc { font-size: 11px; color: #aaa; margin-top: 2px; }

/* 亲密标识 — QQ风格（联系人/消息/聊天头部） */
.rel-tag {
  display: inline-flex; align-items: center; gap: 2px;
  padding: 1px 7px; border-radius: 9px;
  font-size: 11px; font-weight: 600; line-height: 1.5;
  vertical-align: middle; margin-left: 5px;
  white-space: nowrap;
}
.rel-tag.tag-couple { background: rgba(255,107,129,0.15); color: #ff6b81; }
.rel-tag.tag-bestie { background: rgba(243,104,224,0.15); color: #d633c0; }
.rel-tag.tag-bro    { background: rgba(55,66,250,0.15); color: #3742fa; }

/* Bot / AI 标签 */
.bot-tag {
  display: inline-block; font-size: 10px; line-height: 1;
  vertical-align: middle; margin-left: 4px;
  padding: 1px 5px; border-radius: 3px; font-weight: 600;
}
.bot-tag-ai {
  background: #e6f7ff; color: #1890ff; border: 1px solid #91d5ff;
}
.bot-tag-bot {
  background: #f0f0f0; color: #666; border: 1px solid #d9d9d9;
}

/* 系统账号/群标签 */
.system-tag {
  display: inline-block; font-size: 10px; line-height: 1;
  vertical-align: middle; margin-left: 4px;
  padding: 1px 5px; border-radius: 3px; font-weight: 600;
  background: #fff7e6; color: #fa8c16; border: 1px solid #ffd591;
}


/* ========== PWA 安装横幅 ========== */
.pwa-install-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 9999;
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  color: #fff; padding: 12px 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
  animation: pwaSlideDown 0.3s ease;
}
@keyframes pwaSlideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
.pwa-banner-content {
  display: flex; align-items: center; gap: 12px; max-width: 600px; margin: 0 auto;
}
.pwa-banner-icon { font-size: 32px; flex-shrink: 0; }
.pwa-banner-text { flex: 1; min-width: 0; }
.pwa-banner-title { font-size: 15px; font-weight: 600; }
.pwa-banner-desc { font-size: 12px; opacity: 0.85; margin-top: 2px; }
.pwa-banner-btn {
  flex-shrink: 0; padding: 8px 20px;
  background: rgba(255,255,255,0.2); border: 1px solid rgba(255,255,255,0.5);
  color: #fff; border-radius: 20px; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: background 0.2s;
}
.pwa-banner-btn:hover { background: rgba(255,255,255,0.35); }
.pwa-banner-close {
  flex-shrink: 0; width: 28px; height: 28px;
  background: none; border: none; color: rgba(255,255,255,0.7);
  font-size: 18px; cursor: pointer; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.pwa-banner-close:hover { color: #fff; background: rgba(255,255,255,0.15); }

/* 已安装后隐藏横幅 */
@media (display-mode: standalone) {
  .pwa-install-banner { display: none !important; }
}
/* ========== App 更新弹窗 ========== */
.update-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.38);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  animation: updateFadeIn .25s ease;
}
@keyframes updateFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.update-card {
  background: #fff;
  border-radius: 22px;
  width: 360px; max-width: 90vw;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15), 0 0 0 1px rgba(0,0,0,0.04);
  overflow: hidden;
  animation: updatePopIn .35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}
@keyframes updatePopIn {
  from { transform: translateY(20px) scale(0.95); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

.update-close {
  position: absolute; top: 14px; right: 14px; z-index: 10;
  width: 32px; height: 32px;
  border: none; border-radius: 50%;
  background: rgba(0,0,0,0.06);
  color: #888;
  font-size: 20px; line-height: 1;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s;
}
.update-close:hover {
  background: rgba(0,0,0,0.12);
  color: #333;
}

/* Hero section with icon */
.update-hero {
  display: flex; align-items: center; gap: 16px;
  padding: 28px 24px 20px;
  background: linear-gradient(160deg, #e8f6ff 0%, #f0f9ff 40%, #f8fbff 100%);
}
.update-hero.is-current {
  background: linear-gradient(160deg, #ecfdf5 0%, #f0fdf6 40%, #f8fdfa 100%);
}
.update-icon svg {
  filter: drop-shadow(0 4px 12px rgba(18,183,245,0.3));
}
.update-hero-text {
  flex: 1; min-width: 0;
}
.update-hero-title {
  font-size: 19px; font-weight: 700; color: #1a1a2e;
  margin-bottom: 4px;
}
.update-hero-sub {
  font-size: 13px; color: #6b7280;
}

/* Version comparison */
.update-versions {
  display: flex; align-items: center; justify-content: center; gap: 16px;
  padding: 18px 24px;
  background: #f8fafb;
  border-bottom: 1px solid #f0f0f0;
}
.update-ver-col {
  text-align: center; flex: 1;
}
.update-ver-label {
  font-size: 11px; color: #999; text-transform: uppercase;
  letter-spacing: 0.5px; margin-bottom: 4px;
}
.update-ver-num {
  font-size: 26px; font-weight: 800; color: #555;
  font-family: 'SF Mono', 'Menlo', 'Consolas', monospace;
}
.update-ver-new {
  color: #12B7F5;
  position: relative;
}
.update-ver-new::after {
  content: 'NEW';
  position: absolute; top: -6px; right: -32px;
  font-size: 9px; font-weight: 700; font-family: system-ui, sans-serif;
  background: #12B7F5; color: #fff;
  padding: 1px 6px; border-radius: 10px;
}
.update-ver-same {
  color: #22c55e;
}
.update-ver-arrow {
  color: #12B7F5; flex-shrink: 0;
  margin-top: 16px;
}

/* Release notes */
.update-notes {
  padding: 18px 24px;
}
.update-notes-title {
  font-size: 13px; font-weight: 600; color: #555;
  margin-bottom: 10px;
}
.update-notes-content {
  font-size: 13px; color: #666; line-height: 1.7;
  white-space: pre-wrap;
}

/* Actions */
.update-actions {
  padding: 0 24px 22px;
  display: flex; flex-direction: column; gap: 8px;
}
.update-btn-primary {
  width: 100%; padding: 13px 0;
  border: none; border-radius: 14px;
  background: linear-gradient(135deg, #12B7F5, #0A9ED9);
  color: #fff;
  font-size: 15px; font-weight: 600;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(18,183,245,0.3);
  transition: all .2s;
}
.update-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(18,183,245,0.4);
}
.update-btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(18,183,245,0.3);
}
.update-btn-ghost {
  width: 100%; padding: 10px 0;
  border: none; border-radius: 14px;
  background: transparent;
  color: #999;
  font-size: 13px;
  cursor: pointer;
  transition: all .15s;
}
.update-btn-ghost:hover {
  color: #666;
  background: rgba(0,0,0,0.04);
}

/* Version tag at bottom */
.update-version-tag {
  text-align: center;
  padding: 12px 0;
  font-size: 11px; color: #ccc;
  border-top: 1px solid #f4f4f4;
  letter-spacing: 1px;
}

/* Green checkmark state */
.update-card.is-current .update-btn-ghost {
  color: #22c55e;
  font-weight: 600;
}
/* ========== 性别主题 ========== */
/* 女性 — 粉色系 */
[data-gender="2"], [data-gender="3"], [data-gender="4"] {
  --primary: #F472B6;
  --primary-dark: #EC4899;
  --primary-light: #F9A8D4;
  --primary-glow: rgba(244, 114, 182, 0.25);

  --bg-gradient: linear-gradient(135deg, #fce4ec 0%, #fdf2f8 40%, #fce4ec 70%, #fdf2f8 100%);

  --bubble-self: linear-gradient(135deg, #F472B6, #EC4899);
  --bubble-self-text: #ffffff;

  --nav-highlight: #F472B6;
  --nav-active-bg: rgba(244, 114, 182, 0.12);
}

/* 女性主题 — 「我的」头部粉化 */
[data-gender="2"] .my-header, [data-gender="3"] .my-header, [data-gender="4"] .my-header {
  background: linear-gradient(160deg, #F472B6 0%, #EC4899 40%, #DB2777 100%);
}


/* ========== 发现面板 ========== */
.discover-tabs {
  display: flex;
  padding: 0 18px;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  background: var(--white);
}
.discover-tab {
  flex: 1;
  padding: 12px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  outline: none;
}
.discover-tab:active { opacity: 0.7; }
.discover-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

.discover-body {
  padding: 16px;
  overflow-y: auto;
}

.discover-page {
  /* pages toggled via JS */
}

.discover-search-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.discover-search-input {
  flex: 1;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  outline: none;
  background: var(--bg);
  color: var(--text);
  transition: border-color var(--transition-fast);
}
.discover-search-input:focus {
  border-color: var(--primary);
  background: var(--white);
}
.discover-search-btn {
  padding: 10px 18px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity var(--transition-fast);
}
.discover-search-btn:active { opacity: 0.8; }

.discover-results {
  max-height: 320px;
  overflow-y: auto;
  margin-bottom: 12px;
}

.discover-empty {
  text-align: center;
  color: var(--text-light);
  padding: 40px 16px;
  font-size: 13px;
}

.discover-divider {
  display: flex;
  align-items: center;
  margin: 20px 0;
  color: var(--text-light);
  font-size: 12px;
}
.discover-divider::before,
.discover-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.discover-divider span {
  padding: 0 16px;
}

/* 结果项 */
.discover-item {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition-fast);
  gap: 12px;
}
.discover-item:hover { background: var(--bg); }
.discover-item:active { background: rgba(18,183,245,0.08); }

.discover-item-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  background: var(--bg);
  overflow: hidden;
}
.discover-item-avatar .avatar-img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.discover-item-info {
  flex: 1;
  min-width: 0;
}
.discover-item-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.discover-item-sub {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 2px;
}

.discover-item-btn {
  padding: 6px 16px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}
.discover-item-btn:active { opacity: 0.8; }



/* Discover — button states */
.discover-item-btn.is-friend {
  background: var(--border);
  color: var(--text-secondary);
  cursor: default;
}
.discover-item-btn.requested {
  background: #22c55e;
  color: #fff;
  cursor: default;
}
/* Group avatar fallback */
.discover-item-avatar.group-avatar {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
}

/* 桌面端 discover panel 适配 */
@media (min-width: 769px) {
  #discoverPanel {
    position: static;
    width: 100%;
    height: 100%;
    border-left: none;
  }
}

/* ========== 账号切换面板 ========== */
.account-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
}

.account-card {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  border-radius: var(--radius);
  margin-bottom: 8px;
  background: var(--white);
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  transition: all var(--transition-fast);
  gap: 12px;
}
.account-card:hover { background: var(--bg); }
.account-card.account-current { border: 1.5px solid var(--primary); background: rgba(18,183,245,0.03); }

.account-card-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; color: #fff;
  flex-shrink: 0;
  overflow: hidden;
}
.account-card-avatar .avatar-img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.account-card-info {
  flex: 1; min-width: 0;
}
.account-card-name {
  font-size: 15px; font-weight: 600; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.account-card-id {
  font-size: 12px; color: var(--text-light); margin-top: 2px;
}

.account-current-tag {
  display: inline-block;
  font-size: 10px; font-weight: 600; color: var(--primary);
  background: rgba(18,183,245,0.1);
  padding: 1px 7px; border-radius: 8px;
  vertical-align: middle; margin-left: 6px;
}

.account-card-actions {
  flex-shrink: 0;
}

.account-action-btn {
  padding: 6px 16px; border-radius: 20px; border: 1.5px solid var(--primary);
  background: var(--white); color: var(--primary);
  font-size: 13px; font-weight: 600; cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.account-action-btn:hover { background: var(--primary); color: #fff; }
.account-action-btn:active { opacity: 0.8; }

.account-actions {
  padding: 12px 16px 24px;
  border-top: 1px solid var(--border);
}

.account-add-btn {
  width: 100%; padding: 12px;
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text-secondary);
  border: 1.5px dashed var(--border);
  font-size: 14px; font-weight: 500; cursor: pointer;
  transition: all var(--transition-fast);
}
.account-add-btn:hover { border-color: var(--primary); color: var(--primary); }
.account-add-btn:active { opacity: 0.8; }

/* 桌面端 */
@media (min-width: 769px) {
  #accountSwitchPanel {
    position: static;
    width: 100%;
    height: 100%;
    border-left: none;
  }
}
/* ===== 个性化设置 ===== */
.personalize-section {
  margin-top: 16px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.personalize-section-title {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-weight: 600;
}
.bg-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}
.bg-preset {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s, border-color .15s;
  position: relative;
}
.bg-preset:hover { transform: scale(1.1); }
.bg-preset.active { border-color: var(--primary); }
.bg-preset.active::after {
  content: '✓';
  position: absolute;
  top: -4px; right: -4px;
  width: 16px; height: 16px;
  background: var(--primary);
  color: #fff;
  font-size: 10px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.bg-preset-gradient {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s, border-color .15s;
  position: relative;
}
.bg-preset-gradient:hover { transform: scale(1.1); }
.bg-preset-gradient.active { border-color: var(--primary); }
.bg-preset-gradient.active::after {
  content: '✓';
  position: absolute;
  top: -4px; right: -4px;
  width: 16px; height: 16px;
  background: var(--primary);
  color: #fff;
  font-size: 10px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.bg-upload-btn {
  display: inline-block;
  padding: 6px 12px;
  border: 1px dashed var(--border-strong);
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: .2s;
}
.bg-upload-btn:hover { border-color: var(--primary); color: var(--primary); }
.bg-upload-btn input { display: none; }
.bg-clear-btn {
  display: inline-block;
  margin-left: 8px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  color: var(--danger);
  cursor: pointer;
  background: none;
}
.theme-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.theme-preset {
  padding: 8px 14px;
  border-radius: 20px;
  border: 1.5px solid var(--border);
  cursor: pointer;
  font-size: 12px;
  transition: .2s;
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
}
.theme-preset:hover { border-color: var(--primary); }
.theme-preset.active {
  border-color: var(--primary);
  background: rgba(18,183,245,0.08);
  color: var(--primary);
  font-weight: 600;
}
.theme-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* 个性化入口按钮 */

/* ===== 个性化面板 ===== */
#personalizePanel .profile-card {
  padding: 0 !important;
  overflow-y: auto;
}
.personalize-header-badge {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
  padding: 8px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.personalize-section {
  padding: 16px 20px;
}
.personalize-section + .personalize-section {
  border-top: 1px solid var(--border);
}
.personalize-section-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.personalize-section-title .section-icon {
  font-size: 18px;
}

/* 背景预设 - 大色块网格 */
.bg-presets {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}
.bg-preset, .bg-preset-gradient {
  aspect-ratio: 1;
  border-radius: 12px;
  border: 2.5px solid transparent;
  cursor: pointer;
  transition: all .2s ease;
  position: relative;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
  display: flex;
  align-items: flex-end;
  padding: 6px;
}
.bg-preset:hover, .bg-preset-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0,0,0,0.12);
}
.bg-preset.active, .bg-preset-gradient.active {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(18,183,245,0.15), 0 4px 14px rgba(0,0,0,0.1);
}
.bg-preset.active::after, .bg-preset-gradient.active::after {
  content: '✓';
  position: absolute;
  top: 6px; right: 6px;
  width: 20px; height: 20px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.bg-preset-label {
  font-size: 10px;
  color: rgba(255,255,255,0.85);
  font-weight: 600;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 上传和清除按钮行 */
.bg-action-row {
  display: flex;
  gap: 8px;
}
.bg-upload-card {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px;
  border: 2px dashed var(--border-strong);
  border-radius: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: .2s;
  background: rgba(0,0,0,0.02);
}
.bg-upload-card:hover { border-color: var(--primary); color: var(--primary); background: rgba(18,183,245,0.04); }
.bg-upload-card input { display: none; }
.bg-clear-btn {
  padding: 10px 16px;
  border: 2px solid rgba(239,68,68,0.3);
  border-radius: 10px;
  font-size: 13px;
  color: var(--danger);
  cursor: pointer;
  background: none;
  transition: .2s;
  white-space: nowrap;
}
.bg-clear-btn:hover { background: rgba(239,68,68,0.06); border-color: var(--danger); }

/* 主题卡片 - 横向大卡片 */
.theme-presets {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.theme-preset {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: all .2s ease;
  background: var(--white);
}
.theme-preset:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}
.theme-preset.active {
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(18,183,245,0.06), rgba(18,183,245,0.02));
  box-shadow: 0 2px 10px rgba(18,183,245,0.1);
}
.theme-preview {
  display: flex;
  gap: 3px;
  flex-shrink: 0;
}
.theme-swatch {
  width: 22px; height: 22px;
  border-radius: 6px;
  border: 1px solid rgba(0,0,0,0.08);
}
.theme-info {
  flex: 1;
  min-width: 0;
}
.theme-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.theme-desc {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 1px;
}
.theme-preset.active .theme-name {
  color: var(--primary);
}
.theme-check {
  width: 20px; height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: transparent;
  transition: .2s;
}
.theme-preset.active .theme-check {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* 消息预览气泡 */
.preview-bubbles {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}
.preview-bubble {
  max-width: 75%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 13px;
  line-height: 1.5;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.preview-bubble.self {
  align-self: flex-end;
  background: var(--bubble-self, linear-gradient(135deg, #12B7F5, #0d9fd9));
  color: var(--bubble-self-text, #fff);
  border-bottom-right-radius: 4px;
}
.preview-bubble.other {
  align-self: flex-start;
  background: var(--bubble-other, #fff);
  color: var(--bubble-other-text, #1a1a2e);
  border-bottom-left-radius: 4px;
}

/* 保存按钮行 */
.personalize-buttons {
  display: flex;
  gap: 10px;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  bottom: 0;
}
.personalize-btn-cancel {
  flex: 1;
  padding: 11px;
  border: 2px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  cursor: pointer;
  background: var(--white);
  color: var(--text-secondary);
  transition: .2s;
  font-weight: 500;
}
.personalize-btn-cancel:hover { border-color: var(--text-secondary); }
.personalize-btn-save {
  flex: 1;
  padding: 11px;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  transition: .2s;
  box-shadow: 0 2px 8px rgba(18,183,245,0.3);
}
.personalize-btn-save:hover { opacity: 0.9; transform: translateY(-1px); }
.personalize-btn-save:active { transform: scale(0.98); }