/* ============================================
   清新像素风文档库 - Clean Pixel Style
   已整体放大字体，阅读更舒适
============================================ */

/* ===== CSS 变量 ===== */
:root {
  --sidebar-width: 280px;

  /* 亮色 */
  --bg: #fafaf8;
  --bg-secondary: #f0f0ea;
  --text: #2c2c2c;
  --text-secondary: #777;
  --border: #d0d0c8;
  --accent: #5b8c5a;
  --accent-hover: #477547;
  --code-bg: #f4f4f0;

  --font-pixel: 'Press Start 2P', 'Courier New', monospace;
}

/* 暗色 */
[data-theme="dark"] {
  --bg: #1e1e22;
  --bg-secondary: #282830;
  --text: #ddd;
  --text-secondary: #999;
  --border: #444;
  --accent: #7eb87d;
  --accent-hover: #9cd09b;
  --code-bg: #1a1a1e;
}

/* ========== 播放器暗色模式 ========== */
[data-theme="dark"] .music-player,
.dark .music-player,
.dark-mode .music-player {
  --player-bg: #1e1e1e;
  --player-border: #555;
  --player-text: #eee;
  --player-sub: #bbb;
  --player-shadow: #2a2a2a;
}

[data-theme="dark"] .player-body,
.dark .player-body,
.dark-mode .player-body {
  background: #1e1e1e !important;
  border-color: #555 !important;
  box-shadow: 4px 4px 0 #2a2a2a !important;
  color: #eee !important;
}

[data-theme="dark"] .player-title,
.dark .player-title,
.dark-mode .player-title {
  color: #fff !important;
}

[data-theme="dark"] .player-artist,
.dark .player-artist,
.dark-mode .player-artist {
  color: #bbb !important;
}

[data-theme="dark"] .player-btn,
.dark .player-btn,
.dark-mode .player-btn {
  color: #ddd !important;
  border-color: #555 !important;
  background: #2a2a2a !important;
}

[data-theme="dark"] .player-toggle,
.dark .player-toggle,
.dark-mode .player-toggle {
  color: #ddd !important;
  border-color: #555 !important;
  background: #1e1e1e !important;
}

[data-theme="dark"] .volume-slider,
.dark .volume-slider,
.dark-mode .volume-slider {
  background: #444 !important;
  border-color: #555 !important;
}

/* ===== 基础 ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

body {
  font-family: var(--Courier New);
  font-size: 15px;
  /* 之前是 13px，放大到 15 */
  line-height: 1.8;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  min-height: 100vh;
  cursor: url('/assets/img/cursor-text-light.cur'), auto;
}

a {
  color: var(--accent);
  text-decoration: none;
  cursor: url('/assets/img/cursor.cur'), pointer;
}

a:hover {
  text-decoration: underline;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border: 2px solid var(--bg-secondary);
}

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

/* ===== 侧边栏 ===== */
.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  background: var(--bg-secondary);
  border-right: 3px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 20px 18px 14px;
  border-bottom: 3px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-size: 0.95rem;
  /* 之前 0.8rem，放大 */
  color: var(--text);
  letter-spacing: 0.5px;
}

.theme-toggle {
  background: var(--bg);
  border: 2px solid var(--border);
  padding: 5px 7px;
  cursor: pointer;
  font-size: 1rem;
  /* 稍大 */
  line-height: 1;
  color: var(--text);
  transition: border-color 0.2s;
  cursor: url('/assets/img/cursor.cur'), pointer;
}

.theme-toggle:hover {
  border-color: var(--accent);
}

/* 搜索 */
.search-box {
  padding: 14px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 9px 11px;
  border: 2px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: var(--Courier New);
  font-size: 0.72rem;
  /* 之前 0.65rem */
  outline: none;
  cursor: url('/assets/img/cursor-.cur'), text;
}

.search-box input:focus {
  border-color: var(--accent);
}

.search-results {
  display: none;
  position: absolute;
  top: calc(100% - 2px);
  left: 14px;
  right: 14px;
  background: var(--bg);
  border: 2px solid var(--border);
  max-height: 280px;
  overflow-y: auto;
  z-index: 200;
}

.search-results.active {
  display: block;
}

.search-result-item {
  padding: 9px 12px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  font-size: 0.7rem;
  /* 之前 0.6rem */
}

.search-result-item:hover {
  background: var(--bg-secondary);
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item .match-title {
  color: var(--accent);
}

.search-result-item .match-preview {
  color: var(--text-secondary);
  font-size: 0.62rem;
  /* 之前 0.55rem */
  margin-top: 3px;
}

.search-results .no-results {
  padding: 12px;
  color: var(--text-secondary);
  text-align: center;
  font-size: 0.7rem;
}

/* 导航 */
.sidebar-nav {
  padding: 6px 0;
  flex: 1;
}

.nav-group {
  margin-bottom: 4px;
}

.nav-group-title {
  display: flex;
  align-items: center;
  padding: 9px 18px;
  font-size: 0.8rem;
  /* 之前 0.6rem */
  text-transform: uppercase;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  letter-spacing: 1px;
  cursor: url('/assets/img/cursor.cur'), pointer;
}

.nav-group-title .arrow {
  margin-right: 6px;
  font-size: 0.7rem;
  transition: transform 0.2s;
}

.nav-group.collapsed .arrow {
  transform: rotate(-90deg);
}

.nav-group.collapsed .nav-group-items {
  display: none;
}

.nav-item {
  display: block;
  padding: 7px 18px 7px 32px;
  font-size: 0.88rem;
  /* 之前 0.6rem */
  color: var(--text-secondary);
  border-left: 3px solid transparent;
  transition: 0.1s;
}

.nav-item:hover {
  color: var(--text);
  background: var(--bg);
}

.nav-item.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--bg);
}

/* ===== 内容区 ===== */
.content {
  flex: 1;
  min-width: 0;
  margin-left: var(--sidebar-width);
  padding: 40px 56px;
  max-width: 900px;
}

.content-wrapper {
  display: flex;
  flex: 1;
  /* 撑满剩余空间 */
}


.content-inner h1 {
  font-size: 1.7rem;
  /* 之前 1.4rem，增大标题 */
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--accent);
}

.content-inner h2 {
  font-size: 1.2rem;
  /* 之前 1rem */
  margin: 28px 0 12px;
  padding-left: 10px;
  border-left: 4px solid var(--accent);
}

.content-inner h3 {
  font-size: 0.9rem;
  /* 之前 0.8rem */
  margin: 20px 0 10px;
}

.content-inner p {
  margin: 12px 0;
}

.content-inner ul,
.content-inner ol {
  padding-left: 24px;
  margin: 12px 0;
}

.content-inner li {
  margin: 5px 0;
}

.content-inner blockquote {
  border-left: 3px solid var(--accent);
  padding: 7px 15px;
  margin: 18px 0;
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

/* 代码 */
.content-inner pre {
  background: var(--code-bg);
  border: 2px solid var(--border);
  padding: 16px;
  overflow-x: auto;
  margin: 18px 0;
}

.content-inner code {
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  /* 保持代码可读，略微放大 */
  image-rendering: auto;
}

.content-inner :not(pre)>code {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 2px 6px;
  font-size: 0.8rem;
  /* 内联代码放大一点 */
}

/* 表格 */
.content-inner table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.content-inner th,
.content-inner td {
  border: 2px solid var(--border);
  padding: 9px 13px;
  text-align: left;
  font-size: 0.75rem;
  /* 之前 0.68rem */
}

.content-inner th {
  background: var(--bg-secondary);
  color: var(--accent);
}

/* 图片 */
.content-inner img {
  max-width: 100%;
  image-rendering: pixelated;  /* 像素风格保留 */
  cursor: zoom-in;             /* 提示可点击 */
}

/* ===== 移动端 ===== */
.menu-toggle {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 300;
  background: var(--bg);
  border: 2px solid var(--border);
  padding: 10px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 4px;
  background: var(--text);
  margin: 4px 0;
}

.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 90;
}

.overlay.active {
  display: block;
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .menu-toggle {
    display: block;
  }

  .content {
    margin-left: 0;
    padding: 56px 16px 28px;
  }

  .content-inner h1 {
    font-size: 1.3rem;
  }

  /* 移动端标题稍减但依然清晰 */
  .content-inner h2 {
    font-size: 1rem;
  }

  .content-inner h3 {
    font-size: 0.8rem;
  }
}

/* 备案 */
/* ===== 底部信息（像素风） ===== */
.site-footer {
  margin-left: var(--sidebar-width);
  /* 对齐内容区 */
  padding: 24px 56px;
  border-top: 3px solid var(--border);
  font-family: var(--Courier New);
  font-size: 0.7rem;
  color: var(--text-secondary);
  line-height: 2;
  text-align: center;
  background: var(--bg);
}

.footer-text {
  margin: 4px 0;
}

.footer-divider {
  margin: 0 8px;
  color: var(--border);
}

.footer-link {
  color: var(--accent);
  text-decoration: none;
}

.footer-link:hover {
  text-decoration: underline;
}

.footer-note {
  font-size: 0.65rem;
  opacity: 0.8;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .site-footer {
    margin-left: 0;
    padding: 20px 16px;
    font-size: 0.65rem;
  }

  .content {
    margin-left: 0;
    padding: 56px 16px 28px;
  }

  .footer-note {
    font-size: 0.6rem;
  }
}

/* ========================================
   音乐播放器 —— 像素风简洁款
   ======================================== */

.music-player {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

/* 切换按钮 */
.player-toggle {
  width: 44px;
  height: 44px;
  border: 3px solid var(--border);
  background: var(--bg);
  color: var(--text-primary, #333);
  font-size: 1.2rem;
  cursor: pointer;
  border-radius: 4px;
  font-family: var(--Courier New, monospace);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.player-toggle:hover {
  background: var(--border);
}

/* 播放器主体 */
.player-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg);
  border: 3px solid var(--border);
  padding: 14px 18px;
  border-radius: 4px;
  min-width: 220px;
  font-family: var(--Courier New, monospace);
  font-size: 0.7rem;
  color: var(--text-primary, #333);
  box-shadow: 4px 4px 0 var(--border);
}

/* 隐藏状态 */
.player-body.hidden {
  display: none;
}

/* 歌曲信息 */
.player-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.player-title {
  font-weight: bold;
  font-size: 0.75rem;
  color: var(--text-primary, #222);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.player-artist {
  color: var(--text-secondary, #666);
  font-size: 0.65rem;
}

/* 控制按钮 */
.player-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.player-btn {
  width: 36px;
  height: 36px;
  border: 2px solid var(--border);
  background: var(--bg);
  color: var(--text-primary, #333);
  font-size: 0.9rem;
  cursor: pointer;
  border-radius: 4px;
  font-family: var(--Courier New, monospace);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}

.player-btn:hover {
  background: var(--border);
}

.player-btn-play {
  width: 44px;
  height: 44px;
  font-size: 1.1rem;
}

/* 音量 */
.player-volume {
  display: flex;
  align-items: center;
  gap: 6px;
}

.volume-icon {
  font-size: 0.9rem;
  flex-shrink: 0;
}

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
  border: 1px solid var(--border);
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 2px;
  cursor: pointer;
}

.volume-slider::-webkit-slider-thumb:hover {
  background: var(--border);
}

.progress-container {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 4px 0;
}

.progress-container .time-current,
.progress-container .time-duration {
  font-size: 0.75rem;
  color: var(--text-secondary, #999);
  white-space: nowrap;
  min-width: 36px;
  text-align: center;
}

.progress-bar {
  flex: 1;
  height: 4px;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background: var(--border-color, #ddd);
  border-radius: 2px;
  outline: none;
}

.progress-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-color, #4a90d9);
  cursor: pointer;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .music-player {
    bottom: 12px;
    right: 12px;
  }

  .player-body {
    min-width: 180px;
    padding: 12px 14px;
  }
}

/* ========== 图片放大弹窗 ========== */
.img-lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  cursor: pointer;
}

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

.img-lightbox-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  transform: scale(0.9);
  transition: transform 0.25s ease;
  cursor: default;
  /* 图片本身不显示手型 */
}

.img-lightbox-overlay.active img {
  transform: scale(1);
}

/* 关闭按钮 */
.img-lightbox-close {
  position: absolute;
  top: 20px;
  right: 28px;
  font-size: 32px;
  color: #fff;
  cursor: pointer;
  z-index: 10000;
  opacity: 0.7;
  transition: opacity 0.15s;
  user-select: none;
  line-height: 1;
}

.img-lightbox-close:hover {
  opacity: 1;
}

/* 图片悬停放大镜指针 */

.content-inner img:active {
  cursor: grabbing;
}

/* 弹窗样式 */
#img-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: none;
  place-items: center;
  z-index: 9999;
}

#img-lightbox.active {
  display: grid;
}

#img-lightbox img {
  max-width: 95vw;
  max-height: 95vh;
  object-fit: scale-down;          /* 缩小可以，绝不放大 */
  cursor: zoom-out;
  image-rendering: auto;           /* 👈 改这里！让浏览器用高质量插值 */
}