/* ============================================
   吴凯磊诗歌集 - 静态网站样式
   纸墨风格 · 中文衬线 · 优雅阅读体验
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
  --bg: #f3ede1;
  --bg-texture: #f5f0e6;
  --surface: #fdfaf2;
  --surface-hover: #f8f2e6;
  --text: #2b2520;
  --text-secondary: #8a7f74;
  --text-muted: #aaa092;
  --accent: #9c4a3a;
  --accent-light: #c47560;
  --accent-bg: rgba(156, 74, 58, 0.08);
  --border: #ddd3c4;
  --border-light: #e8e0d2;
  --shadow: 0 2px 12px rgba(80, 60, 40, 0.08);
  --shadow-hover: 0 6px 24px rgba(80, 60, 40, 0.15);
  --tag-bg: #ede5d6;
  --tag-text: #8a7a60;
  --overlay-bg: rgba(40, 35, 30, 0.55);
  --reading-bg: #fdfaf2;
  --selection: rgba(156, 74, 58, 0.2);
}

[data-theme="dark"] {
  --bg: #161310;
  --bg-texture: #1a1714;
  --surface: #221e1a;
  --surface-hover: #2a2520;
  --text: #e8dfd0;
  --text-secondary: #a89e8e;
  --text-muted: #786e62;
  --accent: #c47560;
  --accent-light: #d49080;
  --accent-bg: rgba(196, 117, 96, 0.12);
  --border: #3a322c;
  --border-light: #2e2823;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 6px 24px rgba(0, 0, 0, 0.4);
  --tag-bg: #2e2823;
  --tag-text: #b0a088;
  --overlay-bg: rgba(0, 0, 0, 0.7);
  --reading-bg: #221e1a;
  --selection: rgba(196, 117, 96, 0.25);
}

/* ---------- 基础重置 ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

::selection {
  background: var(--selection);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", "宋体", serif;
  background: var(--bg);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(156, 74, 58, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(120, 90, 60, 0.04) 0%, transparent 50%);
  color: var(--text);
  line-height: 1.8;
  min-height: 100vh;
  transition: background 0.4s, color 0.4s;
}

/* ---------- 顶部导航栏 ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(243, 237, 225, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: background 0.4s;
}

[data-theme="dark"] .topbar {
  background: rgba(22, 19, 16, 0.85);
}

.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.brand-title {
  font-family: "Ma Shan Zheng", "Noto Serif SC", serif;
  font-size: 26px;
  color: var(--accent);
  letter-spacing: 2px;
  line-height: 1;
}

.brand-sub {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-toggle {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.3s;
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: rotate(15deg);
}

/* ---------- 页面头部 ---------- */
.page-header {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  text-align: center;
}

.page-title {
  font-family: "Ma Shan Zheng", "Noto Serif SC", serif;
  font-size: 52px;
  color: var(--text);
  letter-spacing: 6px;
  line-height: 1.2;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.title-switch {
  position: relative;
  display: inline-block;
  width: 1.2em;
  height: 1.2em;
  vertical-align: middle;
}

.title-switch .char {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  transition: opacity 0.8s ease, transform 0.8s ease;
  white-space: nowrap;
}

.title-switch .char.inactive {
  opacity: 0;
  transform: translate(-50%, calc(-50% - 14px)) scale(0.88);
  pointer-events: none;
}

.title-switch .char.active {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.title-dot {
  display: inline-block;
  color: var(--accent);
  opacity: 0.6;
  margin: 0 4px;
  font-size: 0.7em;
  vertical-align: middle;
}

.title-static {
  display: inline-block;
  vertical-align: middle;
}

.page-tagline {
  font-family: "Noto Serif SC", serif;
  font-size: 17px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 4px;
  margin-bottom: 14px;
  line-height: 1.4;
}

.page-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  letter-spacing: 3px;
  margin-bottom: 8px;
}

.page-count {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.page-count .num {
  color: var(--accent);
  font-weight: 600;
}

.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 24px 0;
  color: var(--border);
}

.divider::before,
.divider::after {
  content: "";
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border));
}

.divider::after {
  background: linear-gradient(90deg, var(--border), transparent);
}

.divider-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
}

/* ---------- 工具栏 ---------- */
.toolbar {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.search-box {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 10px 16px 10px 40px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: all 0.3s;
}

.search-box input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
  pointer-events: none;
}

.select-wrap {
  position: relative;
}

.select-wrap select {
  appearance: none;
  -webkit-appearance: none;
  padding: 10px 36px 10px 16px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  outline: none;
  transition: all 0.3s;
}

.select-wrap select:hover {
  border-color: var(--accent-light);
}

.select-wrap::after {
  content: "▾";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  font-size: 11px;
}

.sort-btn {
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.sort-btn:hover {
  border-color: var(--accent-light);
  color: var(--accent);
}

.sort-btn.active {
  background: var(--accent-bg);
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- 诗歌目录网格 ---------- */
.catalog {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 40px;
}

.poem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 20px;
}

.poem-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 24px 22px;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.poem-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.35s ease;
}

.poem-card:hover {
  background: var(--surface-hover);
  border-color: var(--border);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.poem-card:hover::before {
  transform: scaleY(1);
}

.poem-card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 1px;
  margin-bottom: 6px;
  line-height: 1.4;
}

.poem-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.poem-card-date {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.poem-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  color: var(--tag-text);
  background: var(--tag-bg);
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.poem-card-preview {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.9;
  white-space: pre-line;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  flex: 1;
}

/* ---------- 分页 ---------- */
.pagination {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.page-btn {
  min-width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.25s;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
}

.page-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.page-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.page-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.page-ellipsis {
  color: var(--text-muted);
  padding: 0 4px;
}

.page-info {
  font-size: 13px;
  color: var(--text-muted);
  margin-left: 16px;
  letter-spacing: 0.5px;
}

/* ---------- 空状态 ---------- */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.4;
}

.empty-state-text {
  font-size: 15px;
  letter-spacing: 1px;
}

/* ============================================
   阅读视图 — 位置固定方案
   ============================================
   布局结构：
   .reading-overlay  →  fixed 全屏遮罩 + 滚动容器
      └─ .reading-panel →  弹窗本体（水平居中，垂直位置由 overlay padding 决定）

   核心原则：
   1. 不用 flex 做垂直对齐（内容高度变化时位置会跳）
   2. 不用 transform 做入场动画（干扰布局计算）
   3. 只用 opacity 做淡入淡出
   4. 弹窗距浏览器顶端的距离由 overlay 的 padding-top 固定
*/

.reading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--overlay-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: block;              /* ★ block 布局，不用 flex */
  overflow-y: auto;
  overflow-x: hidden;
  /* ★ padding-top 就是弹窗顶部到浏览器顶端的距离，固定不变 */
  padding: 60px 20px 40px;
  box-sizing: border-box;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  scroll-behavior: auto;       /* ★ 禁用平滑滚动 */
}

.reading-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* 弹窗面板 */
.reading-panel {
  background: var(--reading-bg);
  border-radius: 16px;
  max-width: 720px;
  width: 100%;
  /* ★ 只有水平居中，垂直位置完全由 overlay 的 padding-top 决定 */
  margin: 0 auto;
  padding: 48px 48px 56px;
  position: relative;
  box-sizing: border-box;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  /*
     ★ 没有 transform，没有 translateY
       弹窗的位置 = overlay 的 padding-top = 60px
       这个值永远不变，不依赖内容高度，不依赖 flex 对齐
  */
}

/* 关闭按钮 */
.reading-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: var(--bg-texture);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s;
  z-index: 10;
}

.reading-close:hover {
  background: var(--accent-bg);
  color: var(--accent);
  transform: rotate(90deg);
}

/* 对齐切换按钮 */
.align-toggle {
  position: absolute;
  top: 18px;
  left: 18px;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: var(--bg-texture);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s;
  z-index: 10;
}

.align-toggle:hover {
  background: var(--accent-bg);
  color: var(--accent);
}

/* 阅读头部 */
.reading-header {
  text-align: center;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px dashed var(--border);
}

.reading-title {
  font-size: 28px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 3px;
  margin-bottom: 10px;
  line-height: 1.4;
}

.reading-date {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.reading-tags {
  margin-top: 10px;
  display: flex;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* 诗歌正文 */
.reading-body {
  font-size: 17px;
  color: var(--text);
  line-height: 2.2;
  letter-spacing: 1px;
  white-space: pre-line;
  text-align: center;
}

.reading-body.pagoda {
  text-align: center;
  font-size: 18px;
  line-height: 1.8;
  letter-spacing: 2px;
}

.reading-body.left-align {
  text-align: left;
}

.reading-body .note,
.reading-body span[style] {
  display: block;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
  text-align: center;
  letter-spacing: 0.5px;
}

/* 回文诗提示 */
.palindrome-hint {
  margin-top: 28px;
  padding: 14px 20px;
  background: var(--accent-bg);
  border-radius: 8px;
  border-left: 3px solid var(--accent);
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  text-align: left;
}

/* 阅读导航 */
.reading-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px dashed var(--border);
  gap: 12px;
}

.reading-nav-btn {
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--surface);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.25s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.reading-nav-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.reading-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.reading-nav-btn .nav-title {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.reading-nav-position {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* ---------- 页脚 ---------- */
.footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 40px;
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 1px;
}

.footer-line {
  margin-bottom: 6px;
}

/* ---------- 版权声明 ---------- */
.copyright {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.copyright-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: left;
  color: var(--text-muted);
  font-size: 12.5px;
  line-height: 1.9;
  letter-spacing: 0.3px;
}

.copyright-title {
  margin: 0 0 14px;
  font-family: "Noto Serif SC", serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 3px;
  text-align: center;
  color: var(--text);
}

.copyright-sub {
  margin: 18px 0 8px;
  font-family: "Noto Serif SC", serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text);
  padding-left: 10px;
  border-left: 3px solid var(--accent);
}

.copyright-para {
  margin: 0 0 10px;
  text-align: justify;
}

.copyright-contact {
  margin: 18px 0 6px;
  text-align: center;
  font-size: 13px;
}

.copyright-contact a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dashed var(--accent);
  padding-bottom: 1px;
  transition: opacity 0.2s;
}

.copyright-contact a:hover {
  opacity: 0.7;
}

.copyright-effective {
  margin: 8px 0 0;
  text-align: center;
  font-size: 11.5px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .page-header {
    padding: 32px 20px 24px;
  }

  .page-title {
    font-size: 38px;
    letter-spacing: 4px;
  }

  .page-tagline {
    font-size: 15px;
    letter-spacing: 3px;
  }

  .toolbar {
    padding: 0 20px 16px;
  }

  .catalog {
    padding: 0 20px 32px;
  }

  .poem-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* 移动端弹窗顶部距离也相应缩小 */
  .reading-overlay {
    padding: 30px 12px 20px;
  }

  .reading-panel {
    padding: 36px 24px 40px;
  }

  .reading-body {
    font-size: 16px;
    line-height: 2.1;
  }

  .reading-title {
    font-size: 24px;
  }

  .topbar-inner {
    padding: 12px 20px;
  }

  .brand-title {
    font-size: 22px;
  }

  .page-info {
    display: none;
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: 32px;
  }

  .page-tagline {
    font-size: 14px;
    letter-spacing: 2px;
  }

  .select-wrap select,
  .sort-btn {
    font-size: 12px;
    padding: 8px 12px;
  }

  .reading-nav-btn .nav-title {
    display: none;
  }
}

/* ---------- 动画 ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.poem-card {
  animation: fadeInUp 0.5s ease both;
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ---------- 搜索框清除按钮 ---------- */
.search-box {
  position: relative;
}

.search-clear {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 14px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.search-clear:hover {
  color: var(--accent);
  background: var(--accent-bg);
}

[data-theme="dark"] .search-clear:hover {
  background: rgba(196, 117, 96, 0.15);
}

.search-box input {
  padding-right: 36px;
}

/* ---------- 页码跳转 ---------- */
.page-jump {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 16px;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--text-secondary);
}

.page-jump input {
  width: 48px;
  height: 28px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 16px;
  outline: none;
  transition: border-color 0.2s ease;
}

.page-jump input:focus {
  border-color: var(--accent);
}

.page-jump input::placeholder {
  color: var(--text-muted);
}

.page-jump button {
  height: 28px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.page-jump button:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.page-jump input:disabled,
.page-jump button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.page-jump input.error {
  border-color: #e74c3c;
  animation: shake 0.3s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

@media (max-width: 480px) {
  .page-jump {
    gap: 6px;
  }
  .page-jump input {
    width: 48px;
    height: 30px;
    font-size: 13px;
  }
  .page-jump button {
    height: 30px;
    padding: 0 10px;
    font-size: 13px;
  }
}

/* ---------- 骨架屏 ---------- */
.skeleton-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 24px 22px;
  min-height: 160px;
  position: relative;
  overflow: hidden;
}

.skeleton-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  width: 150%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.35) 50%,
    transparent 100%
  );
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

[data-theme="dark"] .skeleton-card::after {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 100%
  );
}

@keyframes skeleton-shimmer {
  0% { left: -150%; }
  100% { left: 150%; }
}

/* 骨架内部占位条 */
.skeleton-card .skeleton-line {
  display: block;
  height: 1rem;
  background: var(--border-light);
  border-radius: 4px;
  margin-bottom: 0.8rem;
}

.skeleton-card .skeleton-line:first-child {
  width: 55%;
  height: 1.3rem;
  margin-bottom: 1rem;
}

.skeleton-card .skeleton-line:nth-child(2) { width: 40%; margin-bottom: 1.2rem; }
.skeleton-card .skeleton-line:nth-child(3) { width: 95%; }
.skeleton-card .skeleton-line:nth-child(4) { width: 90%; }
.skeleton-card .skeleton-line:nth-child(5) { width: 85%; }
.skeleton-card .skeleton-line:nth-child(6) { width: 70%; }

[data-theme="dark"] .skeleton-card .skeleton-line {
  background: var(--border);
}