/* ===== 搭子 1.0 - Design Tokens ===== */
:root {
  /* Colors */
  --green-50: #f0fdf4;
  --green-100: #dcfce7;
  --green-200: #bbf7d0;
  --green-300: #86efac;
  --green-400: #4ade80;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --green-700: #15803d;

  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  --white: #ffffff;
  --black: #000000;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);

  /* Font */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;

  /* Safe area */
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ===== Dark Theme ===== */
[data-theme="dark"] {
  --green-50: #052e16;
  --green-100: #064e3b;
  --green-200: #065f46;
  --green-300: #047857;
  --green-400: #10b981;
  --green-500: #34d399;
  --green-600: #22c55e;
  --green-700: #4ade80;

  --gray-50: #1a1a2e;
  --gray-100: #232340;
  --gray-200: #2d2d4a;
  --gray-300: #3d3d5c;
  --gray-400: #6b7280;
  --gray-500: #9ca3af;
  --gray-600: #c9c9d4;
  --gray-700: #e2e2ea;
  --gray-800: #f0f0f5;
  --gray-900: #f5f5fa;

  --white: #0f0f23;
  --black: #f5f5fa;

  --blue-50: #1e1b4b;
  --blue-100: #312e81;
  --blue-500: #818cf8;
  --blue-600: #a5b4fc;

  /* Dark shadows (subtle glow) */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.4);
}

/* ===== Dark Theme Component Overrides ===== */
[data-theme="dark"] body {
  background: #0a0a1a;
}

[data-theme="dark"] .app {
  background: #0f0f23;
  box-shadow: 0 0 60px rgba(0,0,0,0.4);
}

[data-theme="dark"] .tab-bar {
  background: rgba(15,15,35,0.96);
  border-top-color: rgba(255,255,255,0.06);
  box-shadow: 0 -2px 16px rgba(0,0,0,0.2);
}

[data-theme="dark"] .top-nav {
  background: rgba(15,15,35,0.92);
  border-bottom-color: rgba(255,255,255,0.06);
}

/* 登录页深色模式 */
[data-theme="dark"] .login-page {
  background: linear-gradient(170deg, #052e16 0%, #0f0f23 30%, #0a0a1a 60%, #0f0f23 100%);
}
[data-theme="dark"] .login-deco {
  opacity: 0.15;
}
[data-theme="dark"] .login-brand-text,
[data-theme="dark"] .login-subtitle {
  color: var(--gray-400) !important;
}

/* 登录页不需要 tab-bar 的底部空间 */
#page-login {
  padding-bottom: 0;
}

/* 状态标签深色 */
[data-theme="dark"] .status-tag {
  border-color: rgba(255,255,255,0.1) !important;
}
[data-theme="dark"] .status-tag.upcoming {
  background: rgba(245,158,11,0.15) !important;
  color: #fbbf24 !important;
}
[data-theme="dark"] .status-tag.recent {
  background: rgba(245,158,11,0.15) !important;
  color: #fbbf24 !important;
}
[data-theme="dark"] .status-tag.almost-full {
  background: rgba(239,68,68,0.15) !important;
  color: #f87171 !important;
}
[data-theme="dark"] .status-tag.hot {
  background: rgba(239,68,68,0.15) !important;
  color: #f87171 !important;
}

/* 运动类型卡片深色 */
[data-theme="dark"] .sport-option {
  background: var(--gray-100);
  border-color: var(--gray-200);
}
[data-theme="dark"] .sport-option.active {
  background: rgba(34,197,94,0.15);
  border-color: var(--green-500);
}

/* 运动类型小卡片深色 */
[data-theme="dark"] .sport-card {
  background: var(--gray-100) !important;
}

/* 表单深色 */
[data-theme="dark"] .form-input {
  background: var(--gray-100);
  border-color: var(--gray-200);
  color: var(--gray-900);
}
[data-theme="dark"] .form-input::placeholder {
  color: var(--gray-400);
}

/* Hero banner - 保持绿色但加透明度保护 */
[data-theme="dark"] .hero-banner {
  box-shadow: 0 8px 32px rgba(34,197,94,0.15);
}

/* 活动卡片深色 */
[data-theme="dark"] .activity-card {
  border-color: var(--gray-200);
}

/* 日历深色 */
[data-theme="dark"] .cal-day:hover {
  background: var(--gray-200);
}
[data-theme="dark"] .cal-day.today {
  background: rgba(34,197,94,0.2);
  color: var(--green-400);
}
[data-theme="dark"] .cal-day.has-event::after {
  background: var(--green-500);
}

/* Chip深色 */
[data-theme="dark"] .chip {
  background: var(--gray-100);
  border-color: var(--gray-200);
  color: var(--gray-600);
}
[data-theme="dark"] .chip.active {
  background: var(--green-600);
  border-color: var(--green-600);
  color: white;
}
[data-theme="dark"] .sort-chip {
  background: var(--gray-100);
  border-color: var(--gray-200);
  color: var(--gray-600);
}
[data-theme="dark"] .sort-chip.active {
  background: var(--green-600);
  border-color: var(--green-600);
  color: white;
}

/* 按钮深色 */
[data-theme="dark"] .btn-primary {
  background: linear-gradient(135deg, var(--green-500), var(--green-600));
  color: #0f0f23;
  font-weight: 600;
}
[data-theme="dark"] .btn-outline {
  border-color: var(--gray-300);
  color: var(--gray-600);
}
[data-theme="dark"] .btn-secondary {
  background: var(--gray-100);
  border-color: var(--gray-200);
  color: var(--gray-600);
}

/* Toast深色 */
[data-theme="dark"] .toast {
  background: rgba(30,30,60,0.95);
  color: var(--gray-800);
  border: 1px solid var(--gray-200);
}

/* Modal深色 */
[data-theme="dark"] .modal-overlay {
  background: rgba(0,0,0,0.7);
}

/* 聊天深色 */
[data-theme="dark"] .chat-bubble-self {
  background: linear-gradient(135deg, var(--green-600), var(--green-700));
  color: white;
}
[data-theme="dark"] .chat-bubble-other {
  background: var(--gray-100);
  color: var(--gray-700);
}
[data-theme="dark"] .emoji-picker {
  background: var(--gray-900);
  border-color: var(--gray-700);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.3);
}
[data-theme="dark"] .emoji-tabs {
  background: var(--gray-800);
  border-color: var(--gray-700);
}
[data-theme="dark"] .emoji-tab.active {
  background: var(--gray-900);
}
[data-theme="dark"] .emoji-item:hover { background: var(--gray-700); }
[data-theme="dark"] .emoji-item:active { background: var(--gray-600); }
[data-theme="dark"] .chat-input-bar {
  background: rgba(28,28,30,0.95);
  border-color: var(--gray-700);
}
[data-theme="dark"] .mention-panel {
  background: var(--gray-900);
  border-color: var(--gray-700);
}
[data-theme="dark"] .mention-item:hover { background: var(--gray-800); }
[data-theme="dark"] .mention-avatar { background: var(--gray-700); }
[data-theme="dark"] .mention-name { color: var(--gray-200); }
[data-theme="dark"] .msg-mention {
  color: var(--blue-400);
  background: rgba(96,165,250,0.15);
}

/* 社区帖子深色 */
[data-theme="dark"] .post-card {
  border-color: var(--gray-200);
}

/* 个人中心菜单图标深色适配 */
[data-theme="dark"] .profile-menu-item {
  border-color: var(--gray-200);
}

/* 评分标签深色 */
[data-theme="dark"] .rating-tag-btn {
  background: var(--gray-100);
  border-color: var(--gray-200);
  color: var(--gray-600);
}
[data-theme="dark"] .rating-tag-btn:hover {
  border-color: var(--green-400);
  background: rgba(34,197,94,0.1);
}
[data-theme="dark"] .rating-tag-btn.active {
  border-color: var(--green-500);
  background: var(--green-500);
  color: white;
}

/* 搜索页深色 */
[data-theme="dark"] .search-box {
  background: var(--gray-100);
  border-color: var(--gray-200);
}
[data-theme="dark"] .search-box input {
  color: var(--gray-900);
}

/* 关注动态卡片深色 */
[data-theme="dark"] .following-card {
  border-color: var(--gray-200);
}

/* 分割线深色 */
[data-theme="dark"] .divider {
  background: linear-gradient(90deg, transparent, var(--gray-300), transparent);
}

/* 编辑资料头图深色 */
[data-theme="dark"] .edit-cover {
  background: linear-gradient(135deg, #052e16, #064e3b) !important;
}

/* 个人资料头部深色 */
[data-theme="dark"] .profile-header {
  background: linear-gradient(180deg, #052e16 0%, #0f0f23 100%) !important;
}

/* 收藏页标签深色 */
[data-theme="dark"] .topic-tag {
  background: var(--gray-100);
  border-color: var(--gray-200);
  color: var(--gray-600);
}

/* 通知中心深色 */
[data-theme="dark"] .notification-item {
  border-color: var(--gray-200);
}

/* 下拉面板深色 */
[data-theme="dark"] .slide-panel {
  background: var(--white);
}

/* 设置页深色 */
[data-theme="dark"] .settings-item {
  border-color: var(--gray-200);
}

/* 成就徽章深色 */
[data-theme="dark"] .badge-card {
  background: var(--gray-100);
  border-color: var(--gray-200);
}

/* 运动数据深色 */
[data-theme="dark"] .stats-card {
  background: var(--gray-100);
  border-color: var(--gray-200);
}

/* 评价标签深色 - JS内联样式会通过JS处理 */

/* 滚动条深色 */
[data-theme="dark"] ::-webkit-scrollbar {
  width: 4px;
}
[data-theme="dark"] ::-webkit-scrollbar-track {
  background: transparent;
}
[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 4px;
}

/* ===== Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  font-family: var(--font-family);
  background: var(--gray-50);
  color: var(--gray-900);
  font-size: 14px;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ===== App Container (Mobile First) ===== */
.app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--white);
  position: relative;
  box-shadow: 0 0 60px rgba(0,0,0,0.06);
  overflow-x: hidden;
}

/* ===== Pages ===== */
.page {
  display: none;
  padding-bottom: calc(66px + var(--safe-bottom));
  min-height: 100vh;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--white);
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  will-change: opacity, transform;
}
.page.active {
  display: block;
  opacity: 1;
  transform: translateX(0);
}
.page.slide-back {
  opacity: 0;
  transform: translateX(-20px);
}

/* ===== Top Nav ===== */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(0,0,0,0.04);
  padding: 0 var(--space-4);
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-nav-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
}

.top-nav-back {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--gray-100);
  border: none;
  cursor: pointer;
  font-size: 18px;
  color: var(--gray-600);
  transition: all 0.2s;
}
.top-nav-back:active {
  transform: scale(0.92);
  background: var(--gray-200);
}

.top-nav-action {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 20px;
  color: var(--gray-600);
}

/* ===== Bottom Tab Bar ===== */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid rgba(0,0,0,0.04);
  display: flex;
  align-items: center;
  justify-content: space-around;
  height: 66px;
  padding-bottom: var(--safe-bottom);
  z-index: 200;
  box-shadow: 0 -2px 16px rgba(0,0,0,0.04);
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  cursor: pointer;
  padding: 6px 16px;
  border-radius: var(--radius-md);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  background: none;
  border: none;
  font-family: var(--font-family);
  position: relative;
}
.tab-item.active {
  color: var(--green-600);
}
.tab-item.active .tab-icon {
  transform: scale(1.15) translateY(-1px);
}
.tab-item:not(.active) {
  color: var(--gray-400);
}
.tab-item .tab-icon {
  font-size: 22px;
  line-height: 1;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.tab-item .tab-label {
  font-size: 11px;
  font-weight: 500;
  transition: color 0.2s;
}
/* Tab 激活指示点 */
.tab-item.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--green-500);
}

/* Center publish button */
.tab-publish {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--green-400), var(--green-600));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(34,197,94,0.35);
  margin-top: -20px;
  transition: all 0.2s;
}
.tab-publish:active {
  transform: scale(0.92);
}

/* ===== Hero Banner ===== */
.hero-banner {
  margin: var(--space-4);
  border-radius: 20px;
  background: linear-gradient(145deg, #22c55e 0%, #16a34a 40%, #15803d 100%);
  padding: var(--space-6) var(--space-5);
  color: white;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(34,197,94,0.25);
}
.hero-banner::after {
  content: '';
  position: absolute;
  right: -20px;
  top: -20px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  animation: heroFloat 8s ease-in-out infinite;
}
/* 第二个装饰圆 */
.hero-banner::before {
  content: '';
  position: absolute;
  right: 40px;
  bottom: -50px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  animation: heroFloat 6s ease-in-out 2s infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-8px, -10px); }
}
.hero-banner h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
  position: relative;
  z-index: 1;
}
.hero-banner p {
  font-size: 14px;
  opacity: 0.85;
  margin-bottom: var(--space-5);
}
.hero-stats {
  display: flex;
  gap: 0;
  position: relative;
  z-index: 1;
}
.hero-stats .stat {
  text-align: center;
  flex: 1;
  position: relative;
}
.hero-stats .stat + .stat::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 1px;
  background: rgba(255,255,255,0.2);
}
.hero-stats .stat-num {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
}
.hero-stats .stat-label {
  font-size: 11px;
  opacity: 0.7;
  margin-top: 2px;
}

/* ===== Section Header ===== */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-4) var(--space-3);
}
.section-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-900);
}
.section-more {
  font-size: 13px;
  color: var(--green-600);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-family);
}

/* ===== Sport Filter Chips ===== */
.filter-bar {
  display: flex;
  gap: 8px;
  padding: 0 var(--space-4);
  flex-wrap: wrap;
}
.filter-bar::-webkit-scrollbar { display: none; }

.chip {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  height: 30px;
  box-sizing: border-box;
  white-space: nowrap;
  font-family: var(--font-family);
  white-space: nowrap;
  line-height: 1.2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}
.chip.active {
  background: linear-gradient(145deg, #34d399, #16a34a);
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(22,163,74,0.25);
  transform: scale(1.02);
}
.chip:active {
  transform: scale(0.95);
}

/* ===== Activity Card ===== */
.activity-list {
  padding: 0 var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.activity-card {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.04);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.activity-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity 0.3s;
}
.activity-card.tennis::before { background: linear-gradient(90deg, #22c55e, #10b981); }
.activity-card.badminton::before { background: linear-gradient(90deg, #f59e0b, #eab308); }
.activity-card.basketball::before { background: linear-gradient(90deg, #ef4444, #f97316); }
.activity-card.running::before { background: linear-gradient(90deg, #6366f1, #818cf8); }
.activity-card.swimming::before { background: linear-gradient(90deg, #06b6d4, #22d3ee); }
.activity-card.yoga::before { background: linear-gradient(90deg, #a855f7, #c084fc); }
.activity-card:active {
  transform: scale(0.98);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.activity-card:active::before {
  opacity: 1;
}
/* 卡片入场动画 */
@keyframes cardFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.activity-card {
  animation: cardFadeIn 0.35s ease backwards;
}
.activity-list .activity-card:nth-child(1) { animation-delay: 0.03s; }
.activity-list .activity-card:nth-child(2) { animation-delay: 0.06s; }
.activity-list .activity-card:nth-child(3) { animation-delay: 0.09s; }
.activity-list .activity-card:nth-child(4) { animation-delay: 0.12s; }
.activity-list .activity-card:nth-child(5) { animation-delay: 0.15s; }
.activity-list .activity-card:nth-child(6) { animation-delay: 0.18s; }

.activity-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.activity-card-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.activity-card-icon.tennis { background: #dcfce7; }
.activity-card-icon.badminton { background: #fef3c7; }
.activity-card-icon.basketball { background: #fee2e2; }
.activity-card-icon.running { background: #e0e7ff; }
.activity-card-icon.swimming { background: #cffafe; }
.activity-card-icon.yoga { background: #fae8ff; }

.activity-card-info { flex: 1; min-width: 0; }
.activity-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 2px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.activity-card-meta {
  font-size: 12px;
  color: var(--gray-500);
}

.activity-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  background: var(--gray-100);
  color: var(--gray-600);
  transition: transform 0.2s;
}
.activity-tag.level {
  background: linear-gradient(135deg, var(--green-50), var(--green-100));
  color: var(--green-700);
  font-weight: 500;
}
/* 不同信息类型的标签颜色 */
.activity-card-body {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.activity-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--gray-100);
}

.activity-card-avatars {
  display: flex;
}
.activity-card-avatars .avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gray-200);
  border: 2px solid var(--white);
  margin-left: -8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--gray-500);
  overflow: hidden;
}
.activity-card-avatars .avatar:first-child { margin-left: 0; }
.activity-card-avatars .avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.join-count {
  font-size: 12px;
  color: var(--gray-500);
  margin-left: var(--space-2);
}

.activity-status {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  transition: all 0.2s;
}
.activity-status.recruiting {
  background: linear-gradient(135deg, var(--green-100), #dcfce7);
  color: var(--green-700);
  box-shadow: 0 0 0 1px rgba(34,197,94,0.15);
}
.activity-status.full {
  background: linear-gradient(135deg, #f3f4f6, var(--gray-100));
  color: var(--gray-500);
}
.activity-status.ongoing {
  background: linear-gradient(135deg, #fffbeb, #fef3c7);
  color: #92400e;
}
.activity-status.ended {
  background: linear-gradient(135deg, #f3f4f6, var(--gray-100));
  color: var(--gray-500);
}
/* 已结束的活动卡片灰度 */
.activity-card[data-ended="true"] {
  opacity: 0.7;
}
.activity-card[data-ended="true"] .activity-card-icon {
  filter: grayscale(0.5);
}

/* ===== Detail Page ===== */
.detail-hero {
  padding: var(--space-8) var(--space-4);
  text-align: center;
  background: linear-gradient(180deg, #f0fdf4 0%, var(--green-50) 40%, var(--white) 100%);
  position: relative;
  overflow: hidden;
}
.detail-hero::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34,197,94,0.08) 0%, transparent 70%);
}
.detail-icon {
  width: 76px;
  height: 76px;
  border-radius: 22px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 38px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
  border: 2px solid rgba(255,255,255,0.8);
}
.detail-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-2);
}
.detail-desc {
  font-size: 14px;
  color: var(--gray-500);
}

.detail-info-grid {
  padding: var(--space-4);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin: 0 var(--space-4);
}
.detail-info-item {
  background: var(--gray-50);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: background 0.2s;
  border: 1px solid transparent;
}
.detail-info-item:hover {
  background: var(--white);
  border-color: var(--gray-100);
}
.detail-info-item .icon {
  font-size: 18px;
}
.detail-info-item .label {
  font-size: 11px;
  color: var(--gray-500);
}
.detail-info-item .value {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
}

.detail-section {
  padding: var(--space-6) var(--space-4) 0;
}
.detail-section-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-3);
}

.detail-member-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.detail-member {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--gray-50);
  border-radius: var(--radius-md);
}
.detail-member-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  overflow: hidden;
  flex-shrink: 0;
}
.detail-member-info { flex: 1; }
.detail-member-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
}
.detail-member-meta {
  font-size: 12px;
  color: var(--gray-500);
}
.detail-member-score {
  font-size: 12px;
  font-weight: 600;
  color: var(--green-600);
}

.detail-organizer {
  border: 1.5px solid var(--green-200);
  background: var(--green-50);
}

/* Detail bottom bar */
.detail-bottom {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  padding-bottom: var(--safe-bottom);
  max-width: 480px;
  padding: var(--space-3) var(--space-4);
  padding-bottom: calc(var(--space-3) + var(--safe-bottom));
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--gray-100);
  display: flex;
  gap: var(--space-3);
  z-index: 200;
}

.btn {
  flex: 1;
  height: 48px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: var(--font-family);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  position: relative;
  overflow: hidden;
}
.btn:active {
  transform: scale(0.97);
}
.btn-primary {
  background: linear-gradient(145deg, #34d399, #16a34a);
  color: white;
  box-shadow: 0 4px 16px rgba(22,163,74,0.3);
  letter-spacing: 0.5px;
}
.btn-primary:active {
  box-shadow: 0 2px 8px rgba(22,163,74,0.2);
  background: linear-gradient(145deg, #16a34a, #15803d);
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}
.btn-secondary {
  background: linear-gradient(135deg, #f9fafb, var(--gray-100));
  color: var(--gray-700);
  border: 1px solid rgba(0,0,0,0.04);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--gray-200);
  color: var(--gray-700);
}
.btn-danger {
  background: linear-gradient(135deg, #fee2e2, #fecaca);
  color: #dc2626;
  box-shadow: 0 4px 12px rgba(220,38,38,0.1);
}

/* ===== Form ===== */
.form-page {
  padding: var(--space-4);
}

.form-group {
  margin-bottom: var(--space-5);
}
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--space-2);
}
.form-label .required {
  color: #ef4444;
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-family: var(--font-family);
  color: var(--gray-900);
  background: var(--gray-50);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--green-400);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(34,197,94,0.08);
}
.form-textarea {
  min-height: 100px;
  resize: vertical;
}
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-hint {
  font-size: 12px;
  color: var(--gray-400);
  margin-top: var(--space-1);
}

/* Sport type selector */
.sport-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
}
.sport-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-3);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
  background: var(--white);
  font-family: var(--font-family);
}
.sport-option.active {
  border-color: var(--green-400);
  background: var(--green-50);
}
.sport-option .sport-emoji {
  font-size: 28px;
}
.sport-option .sport-name {
  font-size: 12px;
  color: var(--gray-600);
  font-weight: 500;
}
.sport-option.active .sport-name {
  color: var(--green-700);
}

/* ===== Profile Page ===== */
.profile-header {
  padding: var(--space-12) var(--space-4) var(--space-6);
  text-align: center;
  background: linear-gradient(170deg, #ecfdf5 0%, #dcfce7 30%, #f0fdf4 50%, var(--white) 100%);
  position: relative;
  overflow: hidden;
}
/* 头部背景装饰 */
.profile-header::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34,197,94,0.1) 0%, transparent 70%);
  animation: decoFloat1 8s ease-in-out infinite;
}
.profile-header::after {
  content: '';
  position: absolute;
  bottom: -30px;
  left: -30px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34,197,94,0.06) 0%, transparent 70%);
  animation: decoFloat2 10s ease-in-out infinite;
}
.profile-avatar {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: linear-gradient(145deg, #34d399, #16a34a, #15803d);
  margin: 0 auto var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 42px;
  color: white;
  box-shadow: 0 8px 28px rgba(34,197,94,0.25), 0 0 0 3px rgba(255,255,255,0.9);
  border: none;
  position: relative;
  z-index: 1;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.profile-avatar:active {
  transform: scale(0.95);
}
.profile-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--gray-900);
  position: relative;
  z-index: 1;
  letter-spacing: 1px;
}
.profile-bio {
  font-size: 13px;
  color: var(--gray-500);
  margin-top: var(--space-1);
  position: relative;
  z-index: 1;
}
.profile-location {
  font-size: 12px;
  color: var(--gray-400);
  margin-top: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  position: relative;
  z-index: 1;
}

.profile-stats {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-top: var(--space-5);
  padding: var(--space-5) var(--space-4);
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  position: relative;
  z-index: 1;
  border: 1px solid rgba(0,0,0,0.04);
}
.profile-stat {
  text-align: center;
  flex: 1;
  transition: transform 0.2s;
  position: relative;
}
.profile-stat + .profile-stat::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--gray-100);
}
.profile-stat:active {
  transform: scale(0.95);
}
.profile-stat-num {
  font-size: 22px;
  font-weight: 700;
  color: var(--gray-900);
}
.profile-stat-label {
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 2px;
}

.profile-menu {
  padding: var(--space-4);
}
.profile-menu-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--white);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  width: 100%;
  font-family: var(--font-family);
  font-size: 14px;
  color: var(--gray-900);
  text-align: left;
  border: 1px solid rgba(0,0,0,0.04);
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}
.profile-menu-item + .profile-menu-item {
  margin-top: var(--space-2);
}
.profile-menu-item:active {
  transform: scale(0.98);
  background: var(--gray-50);
  box-shadow: var(--shadow-sm);
}
.profile-menu-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.profile-menu-arrow {
  margin-left: auto;
  color: var(--gray-300);
  font-size: 16px;
}

/* ===== My Activities ===== */
.my-tab-bar {
  display: flex;
  padding: var(--space-2) var(--space-4);
  gap: var(--space-2);
  background: var(--gray-100);
  margin: var(--space-4);
  border-radius: var(--radius-full);
}
.my-tab {
  flex: 1;
  text-align: center;
  padding: var(--space-2) 0;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  color: var(--gray-500);
  transition: all 0.2s;
  background: none;
  border: none;
  font-family: var(--font-family);
}
.my-tab.active {
  background: var(--white);
  color: var(--gray-900);
  box-shadow: var(--shadow-sm);
}

/* ===== Score Stars ===== */
.stars {
  display: flex;
  gap: 2px;
}
.star {
  cursor: pointer;
  font-size: 24px;
  color: var(--gray-300);
  transition: color 0.15s;
  background: none;
  border: none;
  padding: 2px;
}
.star.active {
  color: #fbbf24;
}
.star:hover,
.star.hovered {
  color: #fcd34d;
}

/* 评价标签按钮 */
.rating-tag-btn {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 5px 10px;
  border-radius: 20px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  font-size: 12px;
  font-family: var(--font-family);
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
}
.rating-tag-btn:hover {
  border-color: var(--green-400);
  background: #f0fdf4;
}
.rating-tag-btn.active {
  border-color: var(--green-500);
  background: var(--green-500);
  color: white;
}

/* ===== Rating Modal ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0);
  z-index: 500;
  align-items: flex-end;
  justify-content: center;
  transition: background 0.3s;
}
.modal-overlay.active {
  display: flex;
  background: rgba(0,0,0,0.5);
}
.modal {
  background: var(--white);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.35s cubic-bezier(0.32, 0.72, 0, 1);
  box-shadow: 0 -8px 30px rgba(0,0,0,0.12);
  overflow: hidden;
}
@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}
.modal > div,
.modal > [id$="-modal-content"] {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}
.modal-handle {
  width: 36px;
  height: 4px;
  border-radius: 2px;
  background: var(--gray-300);
  margin: 0 auto var(--space-5);
}
.modal-title {
  font-size: 18px;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-6);
}
.modal-scroll-area {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-6) var(--space-6) 0;
  -webkit-overflow-scrolling: touch;
}
.modal-scroll-area .modal-handle {
  margin-bottom: var(--space-5);
}
.modal-scroll-area .modal-title {
  margin-bottom: var(--space-6);
}
.modal-footer {
  padding: var(--space-4) var(--space-6) var(--space-6);
  border-top: 1px solid var(--gray-100);
  flex-shrink: 0;
}

/* ===== Recommended Card ===== */
.recommend-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.04);
  border-radius: var(--radius-md);
  margin: 0 var(--space-4);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  animation: cardFadeIn 0.35s ease backwards;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
#home-recommended .recommend-card:nth-child(1) { animation-delay: 0.05s; }
#home-recommended .recommend-card:nth-child(2) { animation-delay: 0.1s; }
#home-recommended .recommend-card:nth-child(3) { animation-delay: 0.15s; }
.recommend-card:active {
  transform: scale(0.98);
  box-shadow: var(--shadow-md);
}
.recommend-card .rec-icon {
  font-size: 24px;
}
.recommend-card .rec-text {
  flex: 1;
}
.recommend-card .rec-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-900);
}
.recommend-card .rec-desc {
  font-size: 11px;
  color: var(--gray-500);
}
.recommend-card .rec-arrow {
  color: var(--gray-400);
  font-size: 14px;
}

/* ===== Login Page ===== */
.login-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-4);
  background: linear-gradient(170deg, #f0fdf4 0%, #ecfdf5 20%, #ffffff 60%, #f9fafb 100%);
  position: relative;
  overflow: hidden;
}
/* 登录页浮动装饰球 */
.login-deco {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.login-deco-1 {
  width: 260px; height: 260px;
  top: -80px; right: -60px;
  background: radial-gradient(circle, rgba(34,197,94,0.12) 0%, transparent 70%);
  animation: decoFloat1 6s ease-in-out infinite;
}
.login-deco-2 {
  width: 180px; height: 180px;
  bottom: -40px; left: -50px;
  background: radial-gradient(circle, rgba(16,185,129,0.08) 0%, transparent 70%);
  animation: decoFloat2 8s ease-in-out infinite;
}
.login-deco-3 {
  width: 100px; height: 100px;
  top: 25%; left: 10%;
  background: radial-gradient(circle, rgba(34,197,94,0.06) 0%, transparent 70%);
  animation: decoFloat1 7s ease-in-out 1s infinite;
}
@keyframes decoFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(10px, -15px) scale(1.05); }
}
@keyframes decoFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-8px, -10px) scale(1.08); }
}

.login-logo {
  width: 88px;
  height: 88px;
  border-radius: 28px;
  background: linear-gradient(145deg, #34d399, #16a34a, #15803d);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 42px;
  color: white;
  margin-bottom: var(--space-5);
  box-shadow: 0 12px 32px rgba(34,197,94,0.3), 0 0 0 1px rgba(255,255,255,0.2) inset;
  animation: logoFloat 3s ease-in-out infinite;
  position: relative;
  z-index: 1;
  letter-spacing: -2px;
  font-weight: 900;
}
@keyframes logoFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(1deg); }
}
.login-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: var(--space-2);
  position: relative;
  z-index: 1;
  letter-spacing: 4px;
}
.login-subtitle {
  font-size: 14px;
  color: var(--gray-400);
  margin-bottom: var(--space-5);
  position: relative;
  z-index: 1;
  letter-spacing: 1px;
}

.login-form {
  width: 100%;
  max-width: 340px;
  position: relative;
  z-index: 1;
}
.login-form .form-group {
  margin-bottom: var(--space-4);
}
.login-form .btn {
  margin-top: var(--space-4);
  width: 100%;
  height: 52px;
  font-size: 16px;
  border-radius: var(--radius-lg);
  letter-spacing: 1px;
}
.login-form .code-btn {
  flex: none;
  width: auto;
  height: auto;
  font-size: 13px;
  white-space: nowrap;
  padding: var(--space-3) var(--space-4);
}

/* Login tabs */
.login-tabs {
  display: flex;
  gap: 0;
  margin-bottom: var(--space-4);
  border-bottom: 1.5px solid var(--gray-200);
}
.login-tab {
  flex: 1;
  padding: var(--space-2) 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-400);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-family: var(--font-family);
  transition: all 0.2s;
  margin-bottom: -1.5px;
}
.login-tab.active {
  color: var(--green-600);
  border-bottom-color: var(--green-600);
  font-weight: 600;
}

/* Avatar picker */
.avatar-picker-section {
  width: 100%;
  max-width: 340px;
  margin-bottom: var(--space-5);
  position: relative;
  z-index: 1;
}
.avatar-picker-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-500);
  margin-bottom: var(--space-3);
  text-align: center;
  letter-spacing: 1px;
}
.avatar-picker-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}
.avatar-option {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background: var(--white);
  border: 2.5px solid var(--gray-100);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  box-shadow: var(--shadow-sm);
}
.avatar-option:active {
  transform: scale(0.9);
}
.avatar-option.selected {
  border-color: var(--green-400);
  background: var(--green-50);
  box-shadow: 0 0 0 4px rgba(34,197,94,0.15), var(--shadow-md);
  transform: scale(1.12);
}
/* 选中勾 */
.avatar-option.selected::after {
  content: '✓';
  position: absolute;
  bottom: -3px;
  right: -3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green-500);
  color: white;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--white);
  box-shadow: 0 1px 4px rgba(0,0,0,0.15);
}
.avatar-picker-category {
  text-align: center;
  font-size: 12px;
  color: var(--gray-400);
  margin-top: var(--space-2);
}

.login-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-6) 0;
  width: 100%;
  max-width: 340px;
}
.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--gray-200);
}
.login-divider span {
  font-size: 12px;
  color: var(--gray-400);
}

.login-quick {
  display: flex;
  gap: var(--space-5);
  position: relative;
  z-index: 1;
}
.login-quick-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--white);
  border: 1.5px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
}
.login-quick-btn:active {
  transform: scale(0.92);
  background: var(--gray-50);
  box-shadow: none;
}
.login-quick-btn:hover {
  border-color: var(--green-300);
  box-shadow: var(--shadow-md);
}

/* Login brand footer */
.login-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: 32px;
  position: relative;
  z-index: 1;
}
.login-brand-line {
  width: 32px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gray-300), transparent);
}
.login-brand-text {
  font-size: 11px;
  color: var(--gray-300);
  letter-spacing: 2px;
  font-weight: 500;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(31,41,55,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: white;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  z-index: 1000;
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  white-space: nowrap;
  max-width: 90%;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-4);
}
.empty-state .empty-icon {
  font-size: 56px;
  margin-bottom: var(--space-4);
  filter: grayscale(0.2);
  animation: emptyBounce 2s ease-in-out infinite;
}
@keyframes emptyBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.empty-state .empty-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-700);
  margin-bottom: var(--space-2);
}
.empty-state .empty-desc {
  font-size: 13px;
  color: var(--gray-400);
  line-height: 1.6;
}

/* ===== Chat List (消息列表) ===== */
.chat-list {
  padding: var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.chat-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-2);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
}
.chat-item:active {
  background: var(--gray-50);
  transform: scale(0.98);
}
.chat-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
  position: relative;
}
.chat-avatar .chat-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  background: #ef4444;
  color: white;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  border: 2px solid var(--white);
  animation: badgePop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 2px 4px rgba(239, 68, 68, 0.3);
}

/* 未读只有 1 条时用小圆点代替数字 */
.chat-avatar .chat-badge.dot-only {
  min-width: 10px;
  width: 10px;
  height: 10px;
  padding: 0;
  font-size: 0;
  top: -2px;
  right: -2px;
  border: 2px solid var(--white);
}

/* 有未读消息的聊天项标题加粗 */
.chat-item.has-unread .chat-title {
  font-weight: 600;
}
.chat-item.has-unread .chat-preview {
  color: var(--gray-800);
  font-weight: 500;
}

@keyframes badgePop {
  0% { transform: scale(0); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* 底部 Tab 红点 */
.tab-icon {
  position: relative;
}
.tab-badge {
  position: absolute;
  top: -6px;
  right: -10px;
  min-width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: #ef4444;
  color: white;
  font-size: 10px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  border: 1.5px solid var(--white);
  animation: badgePop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 1px 3px rgba(239, 68, 68, 0.3);
}
[data-theme="dark"] .tab-badge {
  border-color: var(--gray-800);
}
[data-theme="dark"] .chat-avatar .chat-badge {
  border-color: var(--gray-800);
  box-shadow: 0 2px 4px rgba(239, 68, 68, 0.2);
}
.chat-info {
  flex: 1;
  min-width: 0;
}
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2px;
}
.chat-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-900);
  display: flex;
  align-items: center;
  gap: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.chat-title .chat-type-badge {
  font-size: 10px;
  padding: 1px 5px;
  border-radius: var(--radius-full);
  background: var(--green-100);
  color: var(--green-700);
  font-weight: 500;
  flex-shrink: 0;
}
.chat-time {
  font-size: 11px;
  color: var(--gray-400);
  flex-shrink: 0;
}
.chat-preview {
  font-size: 13px;
  color: var(--gray-500);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Chat Page (聊天页面) ===== */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-height: 100vh;
}
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3) var(--space-4);
  padding-bottom: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  -webkit-overflow-scrolling: touch;
}

/* System message */
.msg-system {
  text-align: center;
  padding: var(--space-2);
}
.msg-system-text {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--gray-100);
  color: var(--gray-500);
  font-size: 12px;
}

/* Message bubble */
.msg-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  max-width: 80%;
  animation: msgFadeIn 0.3s ease backwards;
}
@keyframes msgFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.msg-row.me {
  flex-direction: row-reverse;
  margin-left: auto;
}
.msg-row.other {
  margin-right: auto;
}
.msg-bubble-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}
.msg-bubble-wrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.msg-bubble-name {
  font-size: 11px;
  color: var(--gray-400);
  padding: 0 var(--space-2);
}
.msg-row.me .msg-bubble-name {
  text-align: right;
}
.msg-bubble {
  padding: var(--space-3) var(--space-4);
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.5;
  word-break: break-word;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
.msg-row.me .msg-bubble {
  background: linear-gradient(135deg, var(--green-400), var(--green-600));
  color: white;
  border-bottom-right-radius: 6px;
}
.msg-row.other .msg-bubble {
  background: var(--white);
  color: var(--gray-900);
  border-bottom-left-radius: 6px;
  border: 1px solid var(--gray-100);
}
.msg-bubble-time {
  font-size: 10px;
  color: var(--gray-400);
  padding: 0 var(--space-2);
  margin-top: 2px;
}
.msg-row.me .msg-bubble-time {
  text-align: right;
}

/* Chat input bar */
.chat-input-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  padding-bottom: calc(var(--space-2) + var(--safe-bottom));
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--gray-100);
}

/* 聊天底部区域 */
.chat-bottom-area {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

/* 表情选择器 */
.emoji-picker {
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  border-radius: 16px 16px 0 0;
  padding: 0;
  max-height: 260px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
  max-height: 0;
}
.emoji-picker.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  max-height: 280px;
}
.emoji-tabs {
  display: flex;
  gap: 2px;
  padding: 8px 8px 0;
  border-bottom: 1px solid var(--gray-100);
  flex-shrink: 0;
  background: var(--gray-50);
}
.emoji-tab {
  width: 44px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: 8px 8px 0 0;
  transition: all 0.2s;
  opacity: 0.5;
}
.emoji-tab.active {
  opacity: 1;
  background: var(--white);
  box-shadow: 0 -2px 0 var(--green-400);
}
.emoji-tab:hover { opacity: 0.8; }
.emoji-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 2px;
  padding: 8px;
  padding-bottom: 16px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.emoji-item {
  width: 100%;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.15s;
}
.emoji-item:hover { background: var(--gray-100); }
.emoji-item:active { transform: scale(1.3); background: var(--gray-200); }

.chat-emoji-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: none;
  color: var(--gray-500);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}
.chat-emoji-btn:active { transform: scale(0.9); }
.chat-emoji-btn.active { color: var(--green-500); }

/* 消息操作菜单 */
.msg-action-menu {
  position: fixed;
  z-index: 99999;
  background: rgba(0,0,0,0.78);
  border-radius: 12px;
  padding: 6px 0;
  min-width: 120px;
  opacity: 0;
  transform: scale(0.85);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.msg-action-menu.show {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}
.msg-action-item {
  display: block;
  width: 100%;
  padding: 12px 16px;
  border: none;
  background: none;
  color: white;
  font-size: 14px;
  text-align: center;
  cursor: pointer;
  transition: background 0.15s;
}
.msg-action-item:hover { background: rgba(255,255,255,0.12); }
.msg-action-item:active { background: rgba(255,255,255,0.2); }

/* @提醒面板 */
.mention-panel {
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  max-height: 200px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  opacity: 0;
  max-height: 0;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
.mention-panel.show {
  opacity: 1;
  max-height: 200px;
  pointer-events: auto;
}
.mention-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  cursor: pointer;
  transition: background 0.15s;
}
.mention-item:hover { background: var(--gray-50); }
.mention-item:active { background: var(--gray-100); }
.mention-avatar {
  font-size: 24px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border-radius: 50%;
  flex-shrink: 0;
}
.mention-name {
  font-size: 14px;
  color: var(--gray-800);
  font-weight: 500;
}
/* 消息中@高亮 */
.msg-mention {
  color: var(--blue-500);
  font-weight: 600;
  background: rgba(59,130,246,0.1);
  padding: 0 2px;
  border-radius: 3px;
}
.chat-input {
  flex: 1;
  height: 40px;
  padding: 0 var(--space-4);
  border: 1.5px solid var(--gray-200);
  border-radius: 20px;
  font-size: 14px;
  font-family: var(--font-family);
  color: var(--gray-900);
  background: var(--gray-50);
  outline: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.chat-input:focus {
  border-color: var(--green-400);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(34,197,94,0.1);
}
.chat-send-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green-400), var(--green-600));
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(34,197,94,0.3);
}
.chat-send-btn:active {
  transform: scale(0.88);
  box-shadow: 0 1px 4px rgba(34,197,94,0.2);
}

/* Unread badge on nav */
.nav-badge {
  position: relative;
}
.nav-badge .badge-dot {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #ef4444, #f87171);
  color: white;
  font-size: 10px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  animation: badgePulse 2s ease-in-out infinite;
  box-shadow: 0 2px 6px rgba(239,68,68,0.4);
}
@keyframes badgePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Member chat action button in detail */
.member-chat-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--green-100);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: all 0.2s;
}
.member-chat-btn:active {
  transform: scale(0.9);
  background: var(--green-200);
}

/* ===== Timeline ===== */
.timeline-list {
  padding: var(--space-3) var(--space-4) var(--space-4);
  position: relative;
}

.timeline-item {
  display: flex;
  gap: var(--space-3);
  padding-bottom: var(--space-3);
  position: relative;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 9px;
  top: 26px;
  bottom: 0;
  width: 2px;
  background: var(--gray-200);
}

.timeline-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: white;
}

.timeline-content {
  flex: 1;
  min-width: 0;
  padding-top: 1px;
}

.timeline-text {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.4;
}

.timeline-time {
  font-size: 11px;
  color: var(--gray-400);
  margin-top: 2px;
}

/* ===== Calendar ===== */
.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  margin-bottom: 4px;
}

.cal-weekday {
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--gray-500);
  padding: 4px 0;
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.cal-day {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  cursor: pointer;
  position: relative;
  transition: all 0.15s;
  gap: 2px;
}

.cal-day.empty {
  cursor: default;
}

.cal-day.past {
  opacity: 0.35;
}

.cal-day-num {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-700);
  line-height: 1;
}

.cal-day.today .cal-day-num {
  background: var(--blue-500);
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.cal-day.selected {
  background: var(--blue-50);
  outline: 2px solid var(--blue-500);
}

.cal-day.has-activity {
  background: var(--green-50);
}

.cal-day.has-activity.selected {
  background: var(--blue-50);
}

.cal-dots {
  display: flex;
  gap: 2px;
}

.cal-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.cal-acts-panel {
  margin-top: var(--space-4);
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  padding: var(--space-3);
}

.cal-acts-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--gray-100);
}

.cal-act-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--gray-50);
  cursor: pointer;
}

.cal-act-item:last-child {
  border-bottom: none;
}

.cal-act-item:active {
  opacity: 0.7;
}

/* ===== Badges ===== */
.badge-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: linear-gradient(135deg, #fef9c3, #fde68a);
  border: 1px solid #fbbf24;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: #92400e;
  cursor: default;
  transition: transform 0.2s;
}

.badge-item:active {
  transform: scale(0.95);
}

.badge-icon {
  font-size: 14px;
}

.badge-label {
  font-size: 11px;
}

/* Activity chat entry */
.detail-chat-entry {
  margin: var(--space-4);
  padding: var(--space-4);
  background: var(--green-50);
  border: 1px solid var(--green-100);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: all 0.2s;
}
.detail-chat-entry:active {
  transform: scale(0.98);
  background: var(--green-100);
}
.detail-chat-entry-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--green-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.detail-chat-entry-text {
  flex: 1;
}
.detail-chat-entry-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
}
.detail-chat-entry-desc {
  font-size: 12px;
  color: var(--gray-500);
}

/* ===== Search Page ===== */
.search-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  padding-bottom: var(--space-3);
}
.search-input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-3);
  height: 40px;
  border-radius: 20px;
  background: var(--gray-100);
  border: 1.5px solid transparent;
  transition: all 0.2s;
}
.search-input-wrap.focused {
  background: var(--white);
  border-color: var(--green-400);
  box-shadow: 0 0 0 3px rgba(34,197,94,0.1);
}
.search-input-wrap .search-icon {
  font-size: 16px;
  color: var(--gray-400);
  flex-shrink: 0;
}
.search-input-wrap input {
  flex: 1;
  border: none;
  background: none;
  font-size: 14px;
  font-family: var(--font-family);
  color: var(--gray-900);
  outline: none;
  height: 100%;
}
.search-input-wrap input::placeholder {
  color: var(--gray-400);
}
.search-clear-btn {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gray-300);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--white);
  flex-shrink: 0;
  transition: all 0.2s;
}
.search-clear-btn:active {
  transform: scale(0.9);
}
.search-cancel-btn {
  font-size: 14px;
  color: var(--green-600);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-family);
  font-weight: 500;
  flex-shrink: 0;
  padding: var(--space-2);
}

/* Search history & hot tags */
.search-section {
  padding: var(--space-4);
}
.search-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}
.search-section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
}
.search-section-action {
  font-size: 12px;
  color: var(--gray-400);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-family);
}
.search-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.search-tag {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--gray-600);
  background: var(--gray-100);
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  font-family: var(--font-family);
}
.search-tag:active {
  transform: scale(0.95);
  background: var(--gray-200);
}

/* Search results */
.search-result-header {
  padding: var(--space-2) var(--space-4);
  font-size: 13px;
  color: var(--gray-400);
}
.search-result-list {
  padding: 0 var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* Highlight matched text */
.search-highlight {
  color: var(--green-600);
  font-weight: 600;
}

/* ===== Utility ===== */
.text-green { color: var(--green-600); }
.text-gray { color: var(--gray-500); }
.font-bold { font-weight: 600; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }

/* Scrollbar hide */
::-webkit-scrollbar { width: 0; height: 0; }

/* ===== 排序筛选条 sort-chip ===== */
.sort-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--gray-200);
  background: var(--white);
  font-size: 12px;
  font-weight: 500;
  color: var(--gray-600);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  height: 30px;
  box-sizing: border-box;
}
.sort-chip.active {
  background: var(--green-500);
  color: var(--white);
  border-color: var(--green-500);
}
.sort-chip:active {
  transform: scale(0.95);
}

/* ===== 活动地图示意 ===== */
.detail-map-box {
  margin: 0 var(--space-4) var(--space-4);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--gray-200);
}
.detail-map-bg {
  background: linear-gradient(145deg, #e0f2fe, #bae6fd, #e0e7ff);
  min-height: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 16px;
  position: relative;
}
.detail-map-pin { font-size: 28px; }
.detail-map-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-800);
  text-align: center;
}
.detail-map-city {
  font-size: 11px;
  color: var(--gray-500);
}
.detail-map-hint {
  font-size: 10px;
  color: var(--blue-600);
  margin-top: 4px;
}

/* ===== 图片上传相关样式 ===== */

/* 活动封面图区域 */
.cover-upload-area {
  border: 2px dashed var(--gray-200);
  border-radius: var(--radius-lg);
  background: var(--gray-50);
  cursor: pointer;
  transition: all var(--transition-fast);
  overflow: hidden;
  min-height: 120px;
}
.cover-upload-area:hover {
  border-color: var(--green-300);
  background: #f0fdf4;
}
.cover-upload-area:active {
  transform: scale(0.99);
}
.cover-upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}
.cover-preview {
  padding: 0;
}
.cover-preview-item {
  position: relative;
  width: 100%;
}
.cover-preview-item img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  display: block;
}
.cover-preview-remove {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0,0,0,0.5);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  line-height: 1;
  transition: background 0.15s;
}
.cover-preview-remove:hover {
  background: rgba(220,38,38,0.8);
}

/* 活动卡片封面图 */
.activity-card-cover {
  margin: -1px -1px 0 -1px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden;
  height: 140px;
  position: relative;
}
.activity-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.activity-card-cover::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(transparent, rgba(255,255,255,0.8));
  pointer-events: none;
}
.activity-card:has(.activity-card-cover) .activity-card-header {
  margin-top: 0;
}

/* 聊天图片按钮 */
.chat-img-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: none;
  color: var(--gray-400);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}
.chat-img-btn:hover {
  color: var(--green-500);
  background: var(--gray-100);
}
.chat-img-btn:active {
  transform: scale(0.9);
}

/* 聊天气泡中的图片 */
.msg-bubble-img {
  padding: 4px !important;
  background: transparent !important;
}
.msg-bubble-img.msg-bubble {
  background: transparent !important;
  box-shadow: none !important;
}
.msg-bubble-image {
  max-width: 220px;
  max-height: 220px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: block;
  transition: transform 0.15s ease;
}
.msg-bubble-image:active {
  transform: scale(0.97);
}
.msg-row.me .msg-bubble-image {
  border-radius: var(--radius-md) var(--radius-md) var(--radius-md) 4px;
}

/* 图片预览遮罩 */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
#image-preview-overlay {
  animation: fadeIn 0.2s ease;
}

/* 详情页封面图 */
.detail-cover {
  width: calc(100% - 32px);
  max-width: 400px;
  height: 200px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 0 auto 12px;
  box-shadow: var(--shadow-md);
  cursor: pointer;
}
.detail-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}
.detail-cover:active img {
  transform: scale(1.02);
}

/* 头像图片支持（用于 .avatar 类中） */
.avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

/* profile-avatar 兼容图片 */
.profile-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

/* ===== 通知列表样式 ===== */
.notif-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 12px;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0,0,0,0.04);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}
.notif-item:active {
  transform: scale(0.99);
  background: var(--gray-50);
}
.notif-unread {
  background: #f0fdf4;
  border-color: #bbf7d0;
}
.notif-dot {
  position: absolute;
  top: 14px;
  left: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-500);
  box-shadow: 0 0 0 2px white;
}
.notif-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 2px;
}
.notif-content {
  font-size: 13px;
  color: var(--gray-600);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.notif-time {
  font-size: 11px;
  color: var(--gray-400);
  margin-top: 4px;
}

/* ===== 个人中心 - 成就徽章区 ===== */
.profile-badges-section {
  margin: var(--space-4);
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0,0,0,0.04);
  padding: var(--space-4);
  box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}
.profile-section-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: var(--space-3);
}
.profile-badges-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.profile-badge-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  padding: 8px 12px;
  background: linear-gradient(135deg, #fef9c3, #fde68a);
  border: 1px solid #fbbf24;
  border-radius: var(--radius-md);
  transition: transform 0.2s;
  min-width: 64px;
}
.profile-badge-item:active { transform: scale(0.93); }
.profile-badge-icon { font-size: 22px; }
.profile-badge-label { font-size: 11px; font-weight: 600; color: #92400e; text-align: center; }

/* ===== 个人中心 - 运动数据面板 ===== */
.profile-sport-panel {
  margin: 0 var(--space-4) var(--space-4);
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0,0,0,0.04);
  padding: var(--space-4);
  box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}
.profile-sport-stats {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 4px;
}
.sport-stat-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sport-stat-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--gray-700);
  width: 52px;
  flex-shrink: 0;
}
.sport-stat-bar-wrap {
  flex: 1;
  height: 8px;
  background: var(--gray-100);
  border-radius: 4px;
  overflow: hidden;
}
.sport-stat-bar {
  height: 100%;
  border-radius: 4px;
  transition: width 0.6s ease;
  min-width: 8px;
}
.sport-stat-count {
  font-size: 11px;
  color: var(--gray-500);
  width: 24px;
  text-align: right;
  flex-shrink: 0;
}

/* ===== 蓝色变量补充 ===== */
:root {
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
}

/* ===== 社区页面样式 ===== */
.post-card {
  transition: transform 0.15s, box-shadow 0.15s;
}

.post-card:active {
  transform: scale(0.985);
}

.post-card img {
  transition: opacity 0.3s;
}

/* 话题标签滚动隐藏滚动条 */
#page-community > div:nth-child(2) {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

#page-community > div:nth-child(2)::-webkit-scrollbar {
  display: none;
}

/* 发帖浮动按钮动画 */
@keyframes float-btn-pulse {
  0%, 100% { box-shadow: 0 4px 15px rgba(59,130,246,0.4); }
  50% { box-shadow: 0 6px 25px rgba(59,130,246,0.5); }
}

/* ===== 地图功能样式 ===== */
#discover-map-container {
  width: 100%;
}

#discover-map-container .amap-logo,
#discover-map-container .amap-copyright {
  display: none !important;
}

/* 地图信息面板动画 */
#discover-map-panel {
  animation: mapPanelSlideUp 0.3s cubic-bezier(0.32, 0.72, 0, 1);
}

@keyframes mapPanelSlideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ===== 活动相册样式 ===== */

/* 相册网格（3列） */
.album-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  border-radius: var(--radius-md);
  overflow: hidden;
}
.album-item {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  background: var(--gray-100);
}
.album-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.2s ease;
}
.album-item:active img {
  transform: scale(1.05);
}
/* 第9张的"更多"遮罩 */
.album-more {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 1px;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

/* 上传按钮 */
.album-upload-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background: var(--green-50);
  color: var(--green-700);
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--green-200);
  cursor: pointer;
  font-family: var(--font-family);
  transition: all 0.2s;
}
.album-upload-btn:active {
  transform: scale(0.95);
  background: var(--green-100);
}

/* 空相册 */
.album-empty {
  text-align: center;
  padding: var(--space-6) var(--space-4);
  background: var(--gray-50);
  border-radius: var(--radius-md);
  border: 1.5px dashed var(--gray-200);
}

/* 查看全部按钮 */
.album-full-btn {
  margin-top: var(--space-3);
  text-align: center;
  padding: var(--space-2);
  font-size: 13px;
  color: var(--green-600);
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}
.album-full-btn:active {
  background: var(--gray-50);
}

/* 相册深色模式 */
[data-theme="dark"] .album-item {
  background: var(--gray-100);
}
[data-theme="dark"] .album-upload-btn {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.3);
  color: var(--green-400);
}
[data-theme="dark"] .album-upload-btn:active {
  background: rgba(34, 197, 94, 0.25);
}
[data-theme="dark"] .album-empty {
  background: var(--gray-100);
  border-color: var(--gray-200);
}
[data-theme="dark"] .album-more {
  background: rgba(0, 0, 0, 0.6);
}

/* ===== UI 打磨：深色模式 Splash ===== */
[data-theme="dark"] #splash-screen {
  background: linear-gradient(160deg, #052e16 0%, #0f0f23 30%, #0a0a1a 100%) !important;
}
[data-theme="dark"] #splash-screen .login-title {
  color: var(--gray-700) !important;
}

/* ===== UI 打磨：确认弹窗深色 ===== */
[data-theme="dark"] .modal-overlay.show > div {
  background: var(--white) !important;
}
[data-theme="dark"] .modal-overlay.show > div .btn-secondary {
  background: var(--gray-100);
  border-color: var(--gray-200);
  color: var(--gray-600);
}

/* ===== UI 打磨：骨架屏 Shimmer ===== */
.skeleton {
  background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.skeleton-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  border: 1px solid var(--gray-100);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.skeleton-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.skeleton-circle {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  flex-shrink: 0;
}
.skeleton-text {
  height: 14px;
  border-radius: 4px;
}
.skeleton-text.w80 { width: 80%; }
.skeleton-text.w60 { width: 60%; }
.skeleton-text.w40 { width: 40%; }
.skeleton-text.h10 { height: 10px; }
.skeleton-text.h12 { height: 12px; }

/* ===== UI 打磨：Ripple 点击效果 ===== */
.ripple-wrap {
  position: relative;
  overflow: hidden;
}
.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.06);
  transform: scale(0);
  animation: rippleAnim 0.6s ease-out forwards;
  pointer-events: none;
}
[data-theme="dark"] .ripple-effect {
  background: rgba(255, 255, 255, 0.06);
}
@keyframes rippleAnim {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ===== UI 打磨：签到成功动效 ===== */
@keyframes checkinSuccess {
  0% { transform: scale(0.5); opacity: 0; }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}
.checkin-success-icon {
  animation: checkinSuccess 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===== UI 打磨：图片加载占位 ===== */
.img-loading {
  background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  min-height: 60px;
  min-width: 60px;
}
img {
  transition: opacity 0.3s ease;
}
img[data-loaded="false"] {
  opacity: 0;
}

/* ===== UI 打磨：FAB 回到顶部 ===== */
.fab-top {
  position: fixed;
  bottom: calc(80px + var(--safe-bottom));
  right: calc(50% - 220px);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 100;
  font-size: 18px;
  color: var(--gray-500);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}
.fab-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.fab-top:active {
  transform: scale(0.9);
}

/* ===== UI 打磨：通知未读深色 ===== */
[data-theme="dark"] .notif-unread {
  background: rgba(34, 197, 94, 0.08);
  border-color: rgba(34, 197, 94, 0.2);
}
[data-theme="dark"] .notif-dot {
  box-shadow: 0 0 0 2px var(--white);
}

/* ===== UI 打磨：卡片 hover 微光 ===== */
.activity-card-cover {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  margin: calc(var(--space-4) * -1) calc(var(--space-4) * -1) 0;
}
.activity-card-cover img {
  transition: transform 0.4s ease;
}
.activity-card:active .activity-card-cover img {
  transform: scale(1.04);
}

/* ===== UI 打磨：通知项和社区帖深色补丁 ===== */
[data-theme="dark"] .notif-content {
  color: var(--gray-500);
}

/* ===== UI 打磨：深色模式 hero-banner 适配 ===== */
[data-theme="dark"] .hero-banner h2,
[data-theme="dark"] .hero-banner p {
  color: white;
}
[data-theme="dark"] .hero-stats .stat-label {
  color: rgba(255, 255, 255, 0.7);
}

/* ===== UI 打磨：detail-bottom 深色 ===== */
[data-theme="dark"] .detail-bottom {
  background: rgba(15, 15, 35, 0.96);
  border-top-color: rgba(255, 255, 255, 0.06);
}

/* ===== UI 打磨：detail-info 深色 ===== */
[data-theme="dark"] .detail-info-item {
  background: var(--gray-100);
  border-color: var(--gray-200);
}
[data-theme="dark"] .detail-info-item .value {
  color: var(--gray-800);
}
[data-theme="dark"] .detail-section-title {
  color: var(--gray-800);
}

/* ===== UI 打磨：detail-map-box 深色 ===== */
[data-theme="dark"] .detail-map-box {
  background: var(--gray-100);
}
[data-theme="dark"] .detail-map-bg {
  background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
}

/* ===== UI 打磨：form-select 深色箭头 ===== */
[data-theme="dark"] .form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
}

/* ===== UI 打磨：拉黑/举报弹窗深色 ===== */
[data-theme="dark"] .report-reason-btn {
  background: var(--gray-100);
  border-color: var(--gray-200);
  color: var(--gray-600);
}
[data-theme="dark"] .report-reason-btn.active {
  background: var(--red-600, #dc2626);
  border-color: var(--red-600, #dc2626);
  color: white;
}

/* ===== UI 打磨：modal 内部深色适配 ===== */
[data-theme="dark"] .modal {
  background: var(--white);
}
[data-theme="dark"] .modal-handle {
  background: var(--gray-300);
}

/* ===== UI 打磨：badge-card, stats-card 更深色覆盖 ===== */
[data-theme="dark"] .profile-badge-item {
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.15), rgba(253, 230, 138, 0.1));
  border-color: rgba(251, 191, 36, 0.3);
}
[data-theme="dark"] .profile-badge-label {
  color: var(--gray-600);
}

/* ===== UI 打磨：cover upload 深色 ===== */
[data-theme="dark"] .cover-upload-area {
  background: var(--gray-100);
  border-color: var(--gray-200);
}

/* ===== UI 打磨：detail-chat-entry 深色 ===== */
[data-theme="dark"] .detail-chat-entry {
  background: var(--gray-100);
  border-color: var(--gray-200);
}

/* ===== UI 打磨：proifle-menu 修复重复 border ===== */
.profile-menu-item {
  border: 1px solid rgba(0,0,0,0.04) !important;
}

/* ===== UI 打磨：page transition 更丝滑 ===== */
.page {
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== UI 打磨：search-result 高亮 ===== */
.search-highlight {
  color: var(--green-600);
  font-weight: 700;
  background: rgba(34, 197, 94, 0.1);
  padding: 0 2px;
  border-radius: 2px;
}

/* ===== UI 打磨：detail-member 深色 ===== */
[data-theme="dark"] .detail-member {
  background: var(--gray-100);
}
[data-theme="dark"] .detail-organizer {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.2);
}
[data-theme="dark"] .detail-member-name {
  color: var(--gray-800);
}

/* ===== UI 打磨：page-content 底部 padding 修正（有 detail-bottom 的页面） ===== */
#page-detail {
  padding-bottom: calc(80px + var(--safe-bottom)) !important;
}