/* ============================================
   组件样式 - 封面、按钮、Toast、导航、状态等
   ============================================ */

/* 封面 */
.cover {
  height: 300px;
  background: var(--cover-bg);
  background-size: cover;
  background-position: center;
  position: relative;
}
.cover-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(transparent 50%, rgba(0,0,0,0.4));
}

/* 右上角相机按钮 - 固定悬浮 */
.camera-btn {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 999;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.3s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.camera-btn:hover {
  background: rgba(0,0,0,0.6);
  transform: scale(1.05);
}

/* 通知按钮 */
.notification-btn {
  position: fixed;
  top: 20px;
  right: 80px;
  z-index: 999;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.3s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.notification-btn:hover {
  background: rgba(0,0,0,0.6);
  transform: scale(1.05);
}
.notification-btn .badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background: #ff4444;
  color: #fff;
  font-size: 11px;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  font-weight: bold;
  border: 2px solid #fff;
}

/* 封面信息 */
.cover-info {
  position: absolute;
  bottom: 30px;
  right: 20px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  z-index: 1;
}
.cover .nickname {
  color: #fff;
  font-size: calc(var(--font-size) * 1.125);
  font-weight: 600;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
  order: 1;
}
.cover-avatar {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  border: 3px solid #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  cursor: pointer;
  order: 2;
}
.cover-stats {
  position: absolute;
  bottom: 15px;
  left: 20px;
  z-index: 1;
  display: flex;
  gap: 16px;
  color: #fff;
  font-size: calc(var(--font-size) * 0.8125);
}
.cover-stats strong {
  font-size: var(--font-size);
  margin-right: 4px;
}

/* Toast 通知 */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  background: rgba(0,0,0,0.8);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: calc(var(--font-size) * 0.875);
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.toast-success { background: rgba(7, 192, 96, 0.9); }
.toast-error { background: rgba(255, 59, 48, 0.9); }
.toast-loading { background: rgba(0, 0, 0, 0.8); }
.toast-info { background: rgba(0, 0, 0, 0.8); }

/* 发布中按钮 */
.modal-header .primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.modal-header .primary {
  position: relative;
}
.modal-header .primary.loading::after {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid #fff;
  border-top-color: transparent;
  border-radius: 50%;
  margin-left: 6px;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 发布中动画 */
.memo-card[publishing="true"] {
  opacity: 0.7;
  position: relative;
}
.memo-card[publishing="true"]::after {
  content: '发布中...';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0,0,0,0.7);
  color: #fff;
  padding: 8px 16px;
  border-radius: 4px;
  font-size: calc(var(--font-size) * 0.75);
}

/* 草稿按钮 */
.draft-btn {
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: calc(var(--font-size) * 0.75);
  cursor: pointer;
}
.draft-btn:hover {
  background: var(--border);
}

/* 草稿箱 */
.draft-modal {
  max-width: 400px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
}
.draft-list {
  overflow-y: auto;
  padding: 12px;
}
.draft-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
}
.draft-content {
  font-size: calc(var(--font-size) * 0.875);
  color: var(--text);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.draft-images {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
}
.draft-img {
  width: 50px;
  height: 50px;
  border-radius: 4px;
  object-fit: cover;
}
.draft-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.draft-time {
  font-size: calc(var(--font-size) * 0.75);
  color: var(--text-secondary);
  margin-right: auto;
}
.draft-actions button {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: calc(var(--font-size) * 0.75);
  cursor: pointer;
}
.draft-actions button:hover {
  background: var(--border);
}
.draft-actions button.danger {
  color: #ff3b30;
  border-color: #ff3b30;
}
.draft-actions button.danger:hover {
  background: #ff3b30;
  color: #fff;
}
.draft-empty {
  text-align: center;
  color: var(--text-secondary);
  padding: 40px 0;
}

/* 未登录提示 */
.login-tip {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
}
.login-tip p {
  margin-bottom: 16px;
  font-size: calc(var(--font-size) * 0.9375);
}
.login-tip button {
  background: #07c160;
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 10px 24px;
  font-size: calc(var(--font-size) * 0.9375);
  cursor: pointer;
}

/* 图片查看器 */
.image-viewer {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.95);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
  user-select: none;
}
.image-viewer img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.2s;
}
.image-viewer-counter {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: calc(var(--font-size) * 0.875);
  background: rgba(0,0,0,0.5);
  padding: 6px 16px;
  border-radius: 20px;
  z-index: 10;
}
.image-viewer-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.2);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}
.image-viewer-prev,
.image-viewer-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.2);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 28px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}
.image-viewer-prev { left: 16px; }
.image-viewer-next { right: 16px; }
.image-viewer-prev:hover,
.image-viewer-next:hover,
.image-viewer-close:hover {
  background: rgba(255,255,255,0.3);
}

/* 动态类型 Tab */
.feed-tabs {
  display: flex;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 0 12px;
}
.feed-tabs button {
  flex: 1;
  padding: 12px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: calc(var(--font-size) * 0.9375);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.feed-tabs button.active {
  color: #07c160;
  border-bottom-color: #07c160;
  font-weight: 600;
}

/* 分类筛选栏 */
.category-bar {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.category-bar button {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--card-bg);
  color: var(--text-secondary);
  font-size: calc(var(--font-size) * 0.8125);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}
.category-bar button.active {
  background: #07c160;
  color: #fff;
  border-color: #07c160;
}

/* 动态分类标签 */
.memo-category {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  background: var(--comment-bg);
  border-radius: 10px;
  font-size: calc(var(--font-size) * 0.6875);
  color: var(--text-secondary);
}

/* 发布类型选择 */
.feed-type-select {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text);
  font-size: calc(var(--font-size) * 0.8125);
  cursor: pointer;
}

/* 底部导航 */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  max-width: 500px;
  width: 100%;
  height: 56px;
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: nowrap;
  z-index: 50;
  transition: background 0.3s;
}
.tab {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 0;
  color: var(--text-secondary);
  font-size: calc(var(--font-size) * 0.6875);
  cursor: pointer;
  min-width: 0;
  transition: color 0.2s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tab svg { fill: var(--text-secondary); }
.tab.active { color: #07c160; }
.tab.active svg { fill: #07c160; }

/* 状态 */
.loading, .no-more, .empty {
  text-align: center;
  padding: 20px;
  color: var(--text-secondary);
  font-size: calc(var(--font-size) * 0.8125);
}
.load-more {
  text-align: center;
  padding: 16px;
}
.load-more button {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 24px;
  font-size: calc(var(--font-size) * 0.875);
  color: var(--text);
  cursor: pointer;
}
.load-more button:disabled {
  opacity: 0.6;
}
.empty p {
  margin-bottom: 8px;
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: var(--back-to-top-bottom, 80px);
  right: var(--back-to-top-right, 20px);
  width: 44px;
  height: 44px;
  background: rgba(7, 193, 96, 0.9);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: calc(var(--font-size) * 1.25);
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
  transition: all 0.3s;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}
.back-to-top:hover {
  background: #06ad56;
  transform: scale(1.1);
}