/* ===========================================================
   prompts-main.css — AI 提示词中心页面样式（新 UI 布局）
   深色极简风格，与主站设计系统统一（CSS 变量全站共享）
   =========================================================== */

/* ===========================================================
   顶部控制区（搜索栏 + 使用说明 + 分类胶囊 + AND/OR）
   =========================================================== */
.prompt-control {
  background: var(--color-bg-secondary, #0f172a);
  border-bottom: 1px solid var(--color-border, #334155);
  padding: 4rem 0 16px;
  z-index: 100;
}

.prompt-control .breadcrumb {
  margin-bottom: 12px;
}

/* --- 搜索栏行 --- */
.prompt-search-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
}

.prompt-search {
  flex: 1;
  display: flex;
  align-items: center;
  height: 46px;
  background: var(--color-bg-primary, #020617);
  border: 1px solid var(--color-border, #334155);
  border-radius: 50px;
  padding: 2px 2px 2px 18px;
  transition: border-color 0.3s, box-shadow 0.3s;
  min-width: 0;
}

.prompt-search:focus-within {
  border-color: var(--color-accent, #3b82f6);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.prompt-search-icon {
  display: flex;
  align-items: center;
  color: var(--color-text-secondary, #94a3b8);
  flex-shrink: 0;
  margin-right: 4px;
}

.prompt-search-input {
  flex: 1;
  padding: 10px 12px;
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: var(--color-text-primary, #f8fafc);
  font-family: inherit;
  min-width: 0;
}

.prompt-search-input::placeholder {
  color: var(--color-text-secondary, #94a3b8);
  font-size: 13px;
}

/* --- 使用说明按钮 --- */
.prompt-doc-link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 22px;
  height: 46px;
  background: var(--color-bg-primary, #020617);
  border: 1px solid var(--color-border, #334155);
  border-radius: 50px;
  color: var(--color-text-secondary, #94a3b8);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.2s ease;
  font-family: inherit;
}

.prompt-doc-link:hover {
  border-color: var(--color-accent, #3b82f6);
  color: var(--color-accent, #3b82f6);
  background: var(--accent-bg-light);
}

.prompt-doc-link svg {
  flex-shrink: 0;
}

/* --- 分类标签行 --- */
.prompt-categories-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.prompt-pills-wrapper {
  flex: 1;
  min-width: 0;
  position: relative;
}

.prompt-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 4px 0;
  max-height: 80px;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.prompt-pills.pills-expanded {
  max-height: none;
}

/* 展开/收起按钮（绝对定位在分类区右下角，样式与 pill 胶囊完全一致） */
.prompt-expand-btn {
  position: absolute;
  bottom: 4px;
  right: 0;
  display: none;
  align-items: center;
  gap: 4px;
  padding: 7px 20px;
  background: var(--color-bg-primary, #020617);
  border: 1px solid var(--color-border, #334155);
  border-radius: 24px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary, #94a3b8);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  white-space: nowrap;
  user-select: none;
  z-index: 2;
}

.prompt-expand-btn.visible {
  display: inline-flex;
}

.prompt-expand-arrow {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.prompt-expand-arrow svg {
  width: 16px;
  height: 16px;
  display: block;
}

.prompt-expand-btn:hover {
  background: var(--color-bg-tertiary, #1e293b);
  border-color: var(--color-accent, #3b82f6);
  color: var(--color-accent-hover, #60a5fa);
}

/* 当展开按钮可见时，pills 右侧留出按钮空间 */
.prompt-pills.has-expand-btn {
  padding-right: 120px;
}

/* --- 胶囊标签（Pill） --- */
.prompt-tab {
  padding: 7px 20px;
  background: var(--color-bg-primary, #020617);
  border: 1px solid var(--color-border, #334155);
  border-radius: 24px;
  font-size: 13px;
  line-height: 1.2;
  font-weight: 500;
  color: var(--color-text-secondary, #94a3b8);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  white-space: nowrap;
  user-select: none;
}

.prompt-tab:hover {
  background: var(--color-bg-tertiary, #1e293b);
  border-color: var(--color-accent, #3b82f6);
  color: var(--color-accent-hover, #60a5fa);
}

.prompt-tab.active {
  background: var(--color-accent, #3b82f6);
  border-color: var(--color-accent, #3b82f6);
  color: var(--text-on-accent);
  font-weight: 600;
}

/* ===========================================================
   主体区域
   =========================================================== */
.prompt-main {
  padding-top: 24px;
  padding-bottom: 64px;
}

/* --- 统计与排序 --- */
.prompt-stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border, #334155);
}

.prompt-stats-count {
  font-size: 14px;
  color: var(--color-text-secondary, #94a3b8);
}

.prompt-stats-count strong {
  color: var(--color-text-primary, #f8fafc);
  font-weight: 700;
}

.prompt-sort {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-secondary, #94a3b8);
}

.sort-select {
  padding: 6px 28px 6px 12px;
  background: var(--color-bg-secondary, #0f172a);
  border: 1px solid var(--color-border, #334155);
  border-radius: 6px;
  color: var(--color-text-primary, #f8fafc);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.sort-select:focus {
  outline: none;
  border-color: var(--color-accent, #3b82f6);
}

/* ===========================================================
   CSS Grid 卡片网格（替代旧版 Column Masonry）
   大屏 4 列 → 中屏 3 列 → 平板 2 列 → 手机 1 列
   =========================================================== */
.prompt-masonry {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  min-height: 360px;
  transition: opacity 0.25s ease;
}

.prompt-masonry.prompt-masonry--fadeout {
  opacity: 0;
}

/* ===========================================================
   提示词卡片（新设计）
   头部：标题(左) + 作者标签(右)
   中部：内容摘要（3行截断）
   底部：复制图标 + 点赞数
   =========================================================== */
.prompt-card {
  background: var(--color-bg-secondary, #0f172a);
  border: 1px solid var(--color-border, #334155);
  border-radius: var(--radius-md, 12px);
  padding: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  min-height: 190px;
  overflow: hidden;
  min-width: 0;
}

.prompt-card:hover {
  transform: translateY(-4px);
  background: var(--color-bg-tertiary, #1e293b);
  box-shadow: 0 12px 24px -8px rgba(0,0,0,0.4), 0 4px 8px -4px rgba(0,0,0,0.3);
  border-color: var(--accent-border);
}

/* --- 卡片头部：标题 + 作者 --- */
.prompt-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.prompt-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-primary, #f8fafc);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
  margin: 0;
}

.prompt-card:hover .prompt-card-title {
  color: var(--color-accent, #3b82f6);
}

.prompt-card-author {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-accent-hover, #60a5fa);
  background: var(--accent-bg);
  padding: 2px 10px;
  border-radius: 4px;
  white-space: nowrap;
}

/* --- 卡片摘要 --- */
.prompt-card-desc {
  font-size: 13px;
  color: var(--color-text-secondary, #94a3b8);
  line-height: 1.65;
  margin: 0 0 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

/* --- 卡片底部：复制图标 + 点赞数 --- */
.prompt-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--color-border, #334155);
  margin-top: auto;
}

/* 复制图标按钮 */
.prompt-copy-icon-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-border, #334155);
  border-radius: 6px;
  background: transparent;
  color: var(--color-text-secondary, #94a3b8);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  position: relative;
}

.prompt-copy-icon-btn:hover {
  background: var(--accent-bg);
  border-color: var(--color-accent, #3b82f6);
  color: var(--color-accent, #3b82f6);
}

.prompt-copy-icon-btn:active {
  transform: scale(0.92);
}

.prompt-copy-icon-btn svg {
  width: 16px;
  height: 16px;
}

/* 点赞数（Upvote） */
.prompt-upvote {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--color-text-secondary, #94a3b8);
  cursor: default;
}

.prompt-upvote svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  transition: color 0.2s;
}

.prompt-upvote:hover svg {
  color: var(--color-accent, #3b82f6);
}

.prompt-upvote-count {
  font-weight: 600;
  font-size: 13px;
  line-height: 1;
}

/* ===========================================================
   骨架屏（Skeleton）
   =========================================================== */
.prompt-skeleton {
  background: var(--color-bg-secondary, #0f172a);
  border: 1px solid var(--color-border, #334155);
  border-radius: var(--radius-md, 12px);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.prompt-skeleton .prompt-skeleton-shimmer {
  background: var(--gradient-prompts-shimmer);
  background-size: 200% 100%;
  border-radius: 4px;
  animation: prompt-shimmer 1.5s ease-in-out infinite;
}

@keyframes prompt-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===========================================================
   加载 / 错误 / 空状态统一样式
   =========================================================== */
.prompts-state {
  display: none;
  text-align: center;
  padding: 80px 24px;
  margin: 0 auto;
  max-width: 480px;
}

/* --- 加载动画 --- */
.prompts-loading-spinner {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.prompts-spinner-ring {
  width: 48px;
  height: 48px;
  border: 3px solid var(--accent-glow);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: prompts-spin 0.8s linear infinite;
}

@keyframes prompts-spin {
  to { transform: rotate(360deg); }
}

.prompts-loading-text {
  font-size: 16px;
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 8px;
}

.prompts-loading-sub {
  font-size: 13px;
  color: var(--text-secondary);
}

/* --- 错误状态 --- */
.prompts-error-icon {
  color: var(--danger);
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
  opacity: 0.8;
}

.prompts-error-message {
  font-size: 16px;
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 8px;
}

.prompts-error-retry {
  margin-top: 20px;
  padding: 10px 32px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  border-radius: 8px;
  color: var(--accent-hover);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.25s ease;
}

.prompts-error-retry:hover {
  background: var(--accent);
  color: var(--text-on-accent);
  border-color: var(--accent);
}

/* --- 空状态 --- */
.prompts-empty-icon {
  color: var(--text-secondary);
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
  opacity: 0.5;
}

.prompts-empty-message {
  font-size: 16px;
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 6px;
}

.prompts-empty-hint {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* --- 加载更多指示器（三点跳动动画） --- */
.prompts-loading-more {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 32px 0;
  font-size: 14px;
  color: var(--text-secondary);
}

.prompts-bounce-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.prompts-bounce-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: prompts-bounce 1.4s infinite ease-in-out both;
}

.prompts-bounce-dot:nth-child(1) {
  animation-delay: -0.32s;
}

.prompts-bounce-dot:nth-child(2) {
  animation-delay: -0.16s;
}

.prompts-bounce-dot:nth-child(3) {
  animation-delay: 0s;
}

@keyframes prompts-bounce {
  0%, 80%, 100% {
    transform: scale(0);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

.prompts-end {
  color: var(--text-tertiary);
  font-size: 13px;
  letter-spacing: 0.5px;
}

/* --- 哨兵元素 --- */
.prompts-sentinel {
  height: 1px;
  width: 100%;
}

/* ===========================================================
   加载更多按钮（手动模式）- 半自动加载交互
   =========================================================== */
.prompts-load-more-btn {
  display: none;
  justify-content: center;
  padding: 32px 0;
}

.prompts-load-more-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 40px;
  background: var(--color-bg-secondary, #0f172a);
  border: 1px solid var(--color-border, #334155);
  border-radius: var(--radius-md, 12px);
  color: var(--color-text-primary, #f8fafc);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.25s ease;
  user-select: none;
}

.prompts-load-more-button:hover {
  background: var(--color-accent, #3b82f6);
  border-color: var(--color-accent, #3b82f6);
  color: var(--text-on-accent);
  box-shadow: var(--accent-shadow-btn);
}

.prompts-load-more-button:active {
  transform: scale(0.97);
}

.prompts-load-more-button.loading {
  pointer-events: none;
  opacity: 0.7;
}

/* --- Masonry 空状态占位 --- */
.prompt-masonry:empty {
  min-height: 200px;
}

/* ===========================================================
   复制按钮反馈样式
   =========================================================== */
.prompt-copy-btn--copied {
  background: rgba(16, 185, 129, 0.15) !important;
  border-color: var(--success) !important;
  color: var(--success) !important;
}

.prompt-copy-btn--copied:hover {
  background: rgba(16, 185, 129, 0.15) !important;
  color: var(--success) !important;
}

/* ===========================================================
   详情弹窗 Dialog（保持原样，不做任何逻辑改动）
   =========================================================== */
.prompt-dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99990;
  background: var(--bg-overlay);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: prompt-dialog-fadein 0.2s ease;
}

@keyframes prompt-dialog-fadein {
  from { opacity: 0; }
  to { opacity: 1; }
}

.prompt-dialog {
  background: var(--color-bg-secondary, #0f172a);
  border: 1px solid var(--color-border, #334155);
  border-radius: var(--radius-md, 12px);
  width: 100%;
  max-width: min(85%, 1200px);
  max-height: 60vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-dialog);
  animation: prompt-dialog-slidein 0.25s ease;
}

@keyframes prompt-dialog-slidein {
  from { transform: translateY(24px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.prompt-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border, #334155);
  flex-shrink: 0;
}

.prompt-dialog-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-primary, #f8fafc);
  margin: 0;
  line-height: 1.4;
  padding-right: 16px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.prompt-dialog-close {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-prompt-dialog-close);
  border: 1px solid var(--color-border, #334155);
  border-radius: 8px;
  color: var(--color-text-secondary, #94a3b8);
  font-size: 22px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  line-height: 1;
}

.prompt-dialog-close:hover {
  background: var(--danger-bg);
  border-color: var(--danger);
  color: var(--danger);
}

.prompt-dialog-body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-primary, #f8fafc);
  white-space: pre-wrap;
  word-wrap: break-word;
}

.prompt-dialog-body::-webkit-scrollbar {
  width: 4px;
}

.prompt-dialog-body::-webkit-scrollbar-track {
  background: transparent;
}

.prompt-dialog-body::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 2px;
}

.prompt-dialog-body::-webkit-scrollbar-thumb:hover {
  background: var(--border-color);
}

.prompt-dialog-footer {
  flex-shrink: 0;
  padding: 16px 24px;
  border-top: 1px solid var(--color-border, #334155);
}

.prompt-dialog-copy-btn {
  width: 100%;
  padding: 12px 0;
  background: var(--color-accent, #3b82f6);
  border: none;
  border-radius: var(--radius-sm, 8px);
  color: var(--text-on-accent);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.25s ease;
}

.prompt-dialog-copy-btn:hover {
  background: var(--accent-dark);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
}

/* ===========================================================
   响应式适配
   =========================================================== */

/* 1440px — 桌面小屏 */
@media (max-width: 1440px) {
  .prompt-masonry {
    gap: 18px;
  }
}

/* 1200px */
@media (max-width: 1200px) {
  .prompt-masonry {
    gap: 18px;
  }
}

/* 1024px — 平板横屏 */
@media (max-width: 1024px) {
  .prompt-masonry {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .prompt-control {
    padding: 0 0 14px;
  }

  .prompt-search-row {
    gap: 10px;
  }

  .prompt-doc-link {
    padding: 0 16px;
    font-size: 13px;
  }

  .prompt-doc-link svg {
    width: 14px;
    height: 14px;
  }

  .prompt-card {
    padding: 18px;
  }
}

/* 768px — 平板竖屏 / 小屏 */
@media (max-width: 768px) {
  .prompt-control {
    position: relative;
  }

  .prompt-search-row {
    flex-direction: column;
    gap: 10px;
  }

  .prompt-search {
    width: 100%;
    height: 44px;
  }

  .prompt-doc-link {
    width: 100%;
    justify-content: center;
    height: 40px;
    padding: 0 16px;
    font-size: 13px;
  }

  .prompt-categories-row {
    gap: 8px;
  }

  .prompt-pills-wrapper {
    mask-image: none;
    -webkit-mask-image: none;
  }

  .prompt-tab {
    padding: 6px 16px;
    font-size: 12px;
  }

  .prompt-masonry {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .prompt-main {
    padding-top: 20px;
    padding-bottom: 48px;
  }

  .prompt-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 20px;
  }

  .prompt-card {
    padding: 16px;
  }

  .prompt-card-title {
    font-size: 14px;
  }

  .prompt-card-desc {
    font-size: 12px;
    -webkit-line-clamp: 2;
  }

  .prompt-dialog {
    max-width: 95%;
    max-height: 70vh;
  }

  .prompt-dialog-header {
    padding: 16px 18px;
  }

  .prompt-dialog-body {
    padding: 16px 18px;
    font-size: 13px;
  }

  .prompt-dialog-footer {
    padding: 12px 18px;
  }
}

/* 480px — 手机 */
@media (max-width: 480px) {
  .prompt-masonry {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .prompt-search {
    height: 42px;
    padding-left: 14px;
  }

  .prompt-search-input {
    font-size: 13px;
    padding: 8px 10px;
  }

  .prompt-search-input::placeholder {
    font-size: 12px;
  }

  .prompt-doc-link {
    height: 38px;
    font-size: 12px;
  }

  .prompt-tab {
    padding: 5px 14px;
    font-size: 12px;
  }

  .prompt-card {
    padding: 14px;
  }

  .prompt-card-title {
    font-size: 14px;
  }

  .prompt-card-desc {
    font-size: 12px;
  }

  .prompt-stats-count {
    font-size: 13px;
  }

  .prompt-dialog {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 0;
  }

  .prompt-dialog-overlay {
    padding: 0;
  }
}

/* ===========================================================
   辅助：隐藏旧版侧边栏（本身在 display:none 容器中）
   =========================================================== */
.prompt-legacy-compat {
  display: none;
}