/* ===========================================
   🎨 全局变量与重置
   =========================================== */

   :root {
    /* 颜色系统 */
    --color-blue: #002FA7;
    --color-blue-light: #1A4ACF;
    --color-purple: #8e44ad;
    --color-green: #007A33;
    --color-green-dark: #007A33;
    --color-red: #e74c3c;
    --color-orange: #f39c12;
    --color-cyan: #00bcd4;
    --color-white: #ffffff;
    --color-yellow: #f7e018;
  
    /* 浅色主题默认值 */
    --color-bg: #F8F9FA;
    --color-bg-light: #FFFFFF;
    --color-text: #2D3748;
    --color-text-dim: rgba(45, 55, 72, 0.7);
    --color-border: #E2E8F0;
    --shadow-color: rgba(0, 0, 0, 0.1);
  
    /* 字体系统 */
    --font-cn: "PingFang SC", "SF Pro SC", "SF Pro Text", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    --font-en: "Ubuntu", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --font-code: "Fira Code", SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    
    /* 兼容性别名 */
    --font-main: var(--font-cn);
    --font-mono: var(--font-code);
  
    /* 过渡效果 */
    --transition-base: all 0.3s ease;
  
    /* 基础重置 */
    box-sizing: border-box;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  /* 深色主题 */
  [data-theme="dark"] {
    --color-bg: #121212;
    --color-bg-light: #1E1E1E;
    --color-text: #FFFFFF;
    --color-text-dim: rgba(255, 255, 255, 0.7);
    --color-border: #333333;
    --shadow-color: rgba(0, 0, 0, 0.3);
  }
  
  /* ===========================================
     🖋️ 字体定义
     =========================================== */
  
  @font-face {
    font-family: 'Fira Code';
    src: url('/static/fonts/FiraCode-Regular.woff2') format('woff2');
    font-display: swap;
    font-weight: 400;
    font-feature-settings: "liga" 1, "calt" 1;
  }
  
  @font-face {
    font-family: 'Ubuntu';
    src: url('/static/fonts/Ubuntu-Regular.woff2') format('woff2');
    font-display: swap;
    font-weight: 400;
  }
  
  @font-face {
    font-family: 'Ubuntu';
    src: url('/static/fonts/Ubuntu-Medium.woff2') format('woff2');
    font-display: swap;
    font-weight: 500;
  }
  
  @font-face {
    font-family: 'Ubuntu';
    src: url('/static/fonts/Ubuntu-Bold.woff2') format('woff2');
    font-display: swap;
    font-weight: 700;
  }

  /* ===========================================
   📐 布局系统样式 (layout.css)
   =========================================== */

/* 1. 主容器 */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  box-sizing: border-box;
}

/* 2. 网格系统 */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* 3. Flex布局工具 */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

.gap-1 {
  gap: 0.25rem;
}

.gap-2 {
  gap: 0.5rem;
}

.gap-4 {
  gap: 1rem;
}

.gap-6 {
  gap: 1.5rem;
}

.gap-8 {
  gap: 2rem;
}

/* 4. 间距工具 */
.m-0 { margin: 0; }
.m-1 { margin: 0.25rem; }
.m-2 { margin: 0.5rem; }
.m-4 { margin: 1rem; }
.m-6 { margin: 1.5rem; }
.m-8 { margin: 2rem; }

.mx-auto { 
  margin-left: auto;
  margin-right: auto;
}

.my-4 {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.my-8 {
  margin-top: 2rem;
  margin-bottom: 2rem;
}

.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

/* 5. 定位工具 */
.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.fixed {
  position: fixed;
}

.sticky {
  position: sticky;
  top: 0;
}

.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-50 { z-index: 50; }
.z-100 { z-index: 100; }

/* 6. 显示与可见性 */
.hidden {
  display: none;
}

.block {
  display: block;
}

.inline-block {
  display: inline-block;
}

.visible {
  visibility: visible;
}

.invisible {
  visibility: hidden;
}

/* 7. 宽度和高度工具 */
.w-full {
  width: 100%;
}

.w-auto {
  width: auto;
}

.h-full {
  height: 100%;
}

.h-screen {
  height: 100vh;
}

.min-h-screen {
  min-height: 100vh;
}

/* 8. 溢出控制 */
.overflow-hidden {
  overflow: hidden;
}

.overflow-auto {
  overflow: auto;
}

.overflow-x-auto {
  overflow-x: auto;
}

.overflow-y-auto {
  overflow-y: auto;
}

/* 9. 响应式布局 */
@media (max-width: 1320px) {
  .container {
    margin-left: 1.5rem;
    margin-right: 1.5rem;
  }

  .grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    margin-left: 1rem;
    margin-right: 1rem;
    padding: 0 1rem;
  }

  .grid {
    gap: 1rem;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  /* 移动端Flex调整 */
  .sm-flex-col {
    flex-direction: column;
  }

  .sm-items-stretch {
    align-items: stretch;
  }
}

/* 10. 布局辅助类 */
.clearfix::after {
  content: '';
  display: table;
  clear: both;
}

.wrapper {
  position: relative;
  width: 100%;
}

.center-content {
  display: flex;
  align-items: center;
  justify-content: center;
}

.space-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

  /* ===========================================
   📝 基础样式
   =========================================== */

/* 重置 */
*,
*::before,
*::after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}

/* 字体应用 */
body {
  font-family: var(--font-cn);
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  transition: var(--transition-base);
}

/* 使用 Ubuntu 字体的元素 */
.lib-name,
.hero-title,
h1, h2, h3, h4,
.lib-version,
.tag-badge,
.btn {
  font-family: var(--font-en);
}

/* 使用 Fira Code 的元素 */
code,
pre,
.monospace,
.lib-url,
.code-box,
.lib-url-container .lib-url {
  font-family: var(--font-code);
  font-feature-settings: "liga" 1, "calt" 1;
}

/* 使用苹方的元素 */
p,
.lib-description,
.hero-subtitle,
.advantage-list li,
.search-input::placeholder,
.footer,
.faq-answer {
  font-family: var(--font-cn);
}

/* ===========================================
   🚀 服务优势模块 (advantages.css)
   =========================================== */

/* 1. 版块标题样式 */
.section-title {
  margin: 3rem auto 2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  max-width: 1230px;
  padding: 0 1.5rem;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
}

.section-title i {
  color: var(--color-blue);
}

/* 2. 主体容器样式 */
.advantage-section {
  max-width: 1230px;
  margin: 2rem auto;
  padding: 2rem;
  background: var(--color-bg-light);
  border-radius: 12px;
  box-sizing: border-box;
}

/* 3. 网格列表样式 */
.advantage-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* 4. 卡片项样式 */
.advantage-item {
  background: var(--color-bg);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
  border: 1px solid var(--color-border);
}

.advantage-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px var(--shadow-color);
  border-color: var(--color-blue);
}

/* 5. 图标样式 */
.advantage-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 12px;
  background: var(--color-bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: all 0.3s ease;
  border: 1px solid var(--color-border);
}

.advantage-icon i {
  font-size: 1.5rem;
  color: var(--color-blue);
  transition: all 0.3s ease;
}

.advantage-item:hover .advantage-icon {
  background: var(--color-blue);
  border-color: var(--color-blue);
}

.advantage-item:hover .advantage-icon i {
  color: var(--color-white);
  transform: scale(1.1);
}

/* 6. 文本内容样式 */
.advantage-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.advantage-desc {
  color: var(--color-text-dim);
  line-height: 1.7;
  font-size: 0.95rem;
  margin: 0;
}

.advantage-desc code {
  background: var(--color-bg-light);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--color-blue);
}

.advantage-desc strong {
  color: var(--color-blue);
  font-weight: 600;
}

/* 7. 响应式布局 */
@media (max-width: 1320px) {
  .section-title,
  .advantage-section {
    margin-left: 1.5rem;
    margin-right: 1.5rem;
  }
}

@media (max-width: 1200px) {
  .advantage-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .section-title {
    margin: 2rem 1rem 1.5rem;
    font-size: 1.25rem;
  }

  .advantage-section {
    margin: 1.5rem 1rem;
    padding: 1.5rem;
  }

  .advantage-list {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .advantage-item {
    padding: 1.5rem;
  }

  .advantage-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1rem;
  }

  .advantage-icon i {
    font-size: 1.25rem;
  }

  .advantage-title {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
  }

  .advantage-desc {
    font-size: 0.9rem;
  }
}

/* ===========================================
   🎯 头部导航样式 (header.css)
   =========================================== */

/* 1. 头部容器 */
.header {
  max-width: 1280px;
  margin: 0 auto 2rem;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* 2. Logo样式 */
.header-logo {
  display: flex;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-text);
  transition: opacity 0.3s ease;
}

.logo-link:hover {
  opacity: 0.8;
}

/* Logo 图片切换 */
.logo-img {
  height: 2.5rem;
  width: auto;
  display: block;
  content: url('/static/images/logo.png');
  transition: opacity 0.3s ease;
}

/* 暗色主题下的 Logo */
[data-theme="dark"] .logo-img {
  content: url('/static/images/logo-dark.png');
}

/* 3. 服务状态 */

.service-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.9rem;
  text-decoration: none; /* 移除链接下划线 */
  transition: all 0.3s ease; /* 添加过渡效果 */
}

.service-status:hover {
  border-color: var(--color-blue);
  background: var(--color-bg-light);
  transform: translateY(-1px);
}

.service-status:active {
  transform: translateY(0);
}

.status-dot {
  color: #10B981; /* 绿色 */
  font-size: 0.75rem;
  animation: pulse 2s infinite;
}

/* 状态点动画 */
@keyframes pulse {
  0% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.5;
  }
}

/* 4. 主标题样式 */
.hero-section {
  text-align: center;
  max-width: 800px;
  margin: 3rem auto 4rem;
  padding: 0 1.5rem;
}

.hero-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
}

.hero-title i {
  color: var(--color-blue);
}

/* 5. 副标题样式 */
.hero-subtitle {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
  color: var(--color-text-dim);
}


.hero-subtitle span {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* 6. 主题切换按钮 */
.theme-toggle {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle:hover {
  background: var(--color-bg-light);
  border-color: var(--color-blue);
  transform: translateY(-1px);
}

.theme-toggle:active {
  transform: translateY(0);
}

/* 7. 响应式适配 */
@media (max-width: 1320px) {
  .header {
    margin-left: 1.5rem;
    margin-right: 1.5rem;
  }
}

@media (max-width: 768px) {
  .header {
    padding: 1rem;
    margin: 0 1rem 1.5rem;
  }

  .logo-img {
    height: 2rem;
  }

  .header-actions {
    gap: 0.75rem;
  }
  
  .service-status {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
  }

  .status-text {
    display: none; /* 在移动端只显示状态点 */
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    margin: 0.75rem 0 1.5rem;
    flex-wrap: wrap;
  }

  .theme-toggle {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .header {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .hero-subtitle {
    justify-content: center;
  }
}

/* 8. 暗色主题适配 */
[data-theme="dark"] .theme-toggle {
  background: var(--color-bg-light);
}

[data-theme="dark"] .theme-toggle:hover {
  background: var(--color-bg);
}
[data-theme="dark"] .service-status {
  background: var(--color-bg-light);
}

/* ===========================================
   🔍 搜索模块样式 (search.css)
   =========================================== */

/* 1. 搜索区域容器 */
.search-section {
  margin: 2rem auto;
  max-width: 1280px;
  padding: 0 1.5rem;
}

/* 2. 搜索框容器 */
.search-container {
  position: relative;
  width: 100%;
}

/* 3. 输入框样式 */
.search-input {
  width: 100%;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg);
  color: var(--color-text);
  transition: all 0.3s ease;
}

.search-input::placeholder {
  color: var(--color-text-dim);
  opacity: 0.7;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(0, 47, 167, 0.1);
}

/* 4. 搜索结果区域 */
.search-results {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  max-height: 400px;
  overflow-y: auto;
  display: none;
}

/* 5. 搜索结果项 */
.search-result-item {
  padding: 1rem;
  border-bottom: 1px solid var(--color-border);
  transition: all 0.3s ease;
  cursor: pointer;
}

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

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

/* 6. 搜索结果内容样式 */
.search-result-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

/* 在 search.css 模块中搜索结果图标的样式部分添加 */
.search-result-icon {
  font-size: 1.25rem;
  width: 1.5rem;
  text-align: center;
}

/* CSS 图标保持蓝色 */
.search-result-icon.fa-css {
  color: var(--color-blue);
}

/* JS 图标使用 JavaScript 标准黄色 */
.search-result-icon.fa-js {
  color: var(--color-yellow);
}

.search-result-name {
  font-weight: 600;
  color: var(--color-text);
}

.search-result-desc {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

/* 7. 搜索结果链接样式 */
.search-result-url {
  display: block;
  font-family: var(--font-code);
  font-size: 0.85rem;
  color: var(--color-blue);
  background: var(--color-bg-light);
  padding: 0.5rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
  word-break: break-all;
}

/* 8. 搜索结果操作按钮 */
.search-result-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.search-copy-btn {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.search-copy-btn:hover {
  background: var(--color-bg-light);
  border-color: var(--color-blue);
}

.search-copy-btn i {
  font-size: 0.9rem;
  color: var(--color-blue);
}

/* 9. 加载状态 */
.search-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 3rem;
  color: var(--color-text-dim);
}

.search-loading i {
  font-size: 1.5rem;
  color: var(--color-blue);
  animation: spin 1s linear infinite;
}

/* 10. 空状态 */
.search-empty {
  padding: 2rem;
  text-align: center;
  color: var(--color-text-dim);
}

/* 11. 滚动条美化 */
.search-results::-webkit-scrollbar {
  width: 8px;
}

.search-results::-webkit-scrollbar-track {
  background: var(--color-bg-light);
  border-radius: 4px;
}

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

.search-results::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-dim);
}

/* 12. 响应式适配 */
@media (max-width: 1320px) {
  .search-section {
    margin-left: 1.5rem;
    margin-right: 1.5rem;
  }
}

@media (max-width: 768px) {
  .search-section {
    margin: 1.5rem 1rem;
    padding: 0;
  }

  .search-input {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
  }

  .search-result-item {
    padding: 0.75rem;
  }

  .search-result-header {
    gap: 0.75rem;
  }

  .search-result-icon {
    font-size: 1.1rem;
  }

  .search-result-desc {
    font-size: 0.85rem;
  }

  .search-result-url {
    font-size: 0.8rem;
    padding: 0.4rem;
  }

  .search-copy-btn {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
  }
}

/* 13. 暗色主题适配 */
[data-theme="dark"] .search-results {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .search-copy-btn:hover {
  background: var(--color-bg);
}

/* ===========================================
   📚 热门推荐模块样式 (popular.css)
   =========================================== */

/* 1. 主体容器 */
.fixed-section {
  max-width: 1280px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

/* 2. 列表容器 */
.library-list {
  background: var(--color-bg-light);
  border-radius: 12px;
  padding: 2rem;
}

/* 3. 库卡片基础样式 */
.lib-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

.lib-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px var(--shadow-color);
  border-color: var(--color-blue);
}

/* 4. 卡片内容布局 */
.lib-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.lib-main-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* 5. 图标样式 */
.lib-icon {
  font-size: 1.5rem;
  color: var(--color-blue);
  width: 2.5rem;
  text-align: center;
}

/* 6. 名称和描述 */
.lib-name-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
}

.lib-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px; /* 根据需要调整 */
}

.lib-description {
  color: var(--color-text-dim);
  font-size: 0.95rem;
  flex: 2;
}

/* 7. GitHub 徽章 */
.github-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text-dim);
  font-size: 0.9rem;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  background: var(--color-bg-light);
  transition: all 0.3s ease;
}

.github-badge:hover {
  background: var(--color-bg);
  color: var(--color-blue);
}

.github-stars {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* GitHub 星星样式 */
.github-stars i {
  color: #f1c40f;
}

.github-badge:hover .github-stars i {
  color: #f39c12;
}

/* 8. 标签样式 */
.lib-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-badge {
  font-size: 0.85rem;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  background: var(--color-bg-light);
  color: var(--color-text-dim);
}

/* 9. 版本信息 */
.version-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
}

.version-badge {
  font-size: 0.85rem;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  background: var(--color-bg-light);
  color: var(--color-blue);
}

.update-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

.update-badge.latest {
  color: var(--color-blue);
}

/* 10. URL 区域 */
.lib-url-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--color-bg-light);
  padding: 0.75rem;
  border-radius: 8px;
}

.lib-url {
  font-family: var(--font-code);
  font-size: 0.9rem;
  color: var(--color-text);
  flex: 1;
  overflow-x: auto;
  white-space: nowrap;
}

/* 11. 复制按钮组 */
.copy-actions {
  display: flex;
  gap: 0.5rem;
}

.copy-btn {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.copy-btn:hover {
  background: var(--color-bg-light);
  border-color: var(--color-blue);
}

.copy-btn i {
  font-size: 0.9rem;
  color: var(--color-blue);
}

/* 12. 加载和错误状态 */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 3rem;
  color: var(--color-text-dim);
}

.loading i {
  font-size: 1.5rem;
  color: var(--color-blue);
  animation: spin 1s linear infinite;
}

.error {
  padding: 2rem;
  text-align: center;
  color: var(--color-text-dim);
}

.error-detail {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-red);
}

/* 旋转动画关键帧 */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* 13. 响应式适配 */
@media (max-width: 1320px) {
  .fixed-section {
    margin-left: 1.5rem;
    margin-right: 1.5rem;
  }
}

@media (max-width: 1200px) {
  .lib-main-row {
    gap: 1rem;
  }
  
  .lib-description {
    flex: 1 0 100%;
    margin-top: 0.5rem;
  }
}

@media (max-width: 768px) {
  .fixed-section {
    margin: 1.5rem 1rem;
    padding: 0;
  }

  .library-list {
    padding: 1.5rem;
  }

  .lib-item {
    padding: 1rem;
  }

  .lib-name {
    font-size: 1.1rem;
  }

  .lib-description {
    font-size: 0.9rem;
  }

  .lib-url {
    font-size: 0.85rem;
  }

  .version-info {
    flex-wrap: wrap;
    margin-left: 0;
    margin-top: 0.5rem;
  }
}

/* 14. 暗色主题适配 */
[data-theme="dark"] .lib-url-row {
  background: var(--color-bg);
}

[data-theme="dark"] .copy-btn:hover {
  background: var(--color-bg);
}

/* ===========================================
   📖 FAQ与使用说明样式 (faq.css)
   =========================================== */

/* 1. 主体容器 */
.section-group-wrapper {
  margin: 4rem auto;
  max-width: 1280px;
  padding: 0 1.5rem;
}

/* 2. 网格布局 */
.section-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

/* 3. 区域基础样式 */
.usage-section,
.faq-section {
  background: var(--color-bg-light);
  border-radius: 12px;
  padding: 2rem;
}

/* 4. 标题样式 */
.section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

.section-title i {
  color: var(--color-blue);
}

/* 5. 使用说明样式 */
.usage-step {
  margin-bottom: 1.5rem;
}

.step-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.step-label i {
  color: var(--color-blue);
  font-size: 0.9rem;
}

/* 6. 代码框样式 */
.code-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
  margin: 0.5rem 0;
  position: relative;
  transition: all 0.3s ease;
}

.code-box:hover {
  border-color: var(--color-blue);
  box-shadow: 0 2px 8px var(--shadow-color);
}

.code-box code {
  font-family: var(--font-code);
  font-size: 0.9rem;
  color: var(--color-text);
  display: block;
  overflow-x: auto;
}

.url-label {
  position: absolute;
  right: 1rem;
  top: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

/* 7. 复制按钮 */
.copy-btn-inline {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.copy-btn-inline:hover {
  background: var(--color-bg-light);
  border-color: var(--color-blue);
}

.copy-btn-inline i {
  color: var(--color-blue);
}

/* 8. 使用提示样式 */
.tips-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  color: var(--color-text);
  margin: 2rem 0 1rem;
}

.tips-title i {
  color: var(--color-blue);
}

.tips-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tips-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-dim);
}

.tips-list li::before {
  content: '•';
  position: absolute;
  left: 0.5rem;
  color: var(--color-blue);
}

/* 9. FAQ样式 */
.faq-item {
  margin-bottom: 1.5rem;
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.faq-question i {
  color: var(--color-blue);
}

.faq-answer {
  color: var(--color-text-dim);
  line-height: 1.6;
  margin: 0;
  padding-left: calc(1.5rem + 0.5rem);
}

/* 10. 响应式适配 */
@media (max-width: 1320px) {
  .section-group-wrapper {
    margin-left: 1.5rem;
    margin-right: 1.5rem;
  }
}

@media (max-width: 1200px) {
  .section-group {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .section-group-wrapper {
    margin: 2rem 1rem;
    padding: 0;
  }

  .usage-section,
  .faq-section {
    padding: 1.5rem;
  }

  .section-title {
    font-size: 1.15rem;
    margin-bottom: 1.25rem;
  }

  .code-box {
    padding: 0.75rem;
    font-size: 0.85rem;
  }

  .code-box code {
    font-size: 0.85rem;
  }

  .faq-question {
    font-size: 1rem;
  }

  .faq-answer {
    font-size: 0.9rem;
    padding-left: 1.75rem;
  }
}

/* 11. 暗色主题适配 */
[data-theme="dark"] .code-box {
  background: var(--color-bg);
}

[data-theme="dark"] .copy-btn-inline:hover {
  background: var(--color-bg);
}

/* ===========================================
   👣 页脚样式 (footer.css)
   =========================================== */

/* 1. 页脚容器 */
.footer {
  max-width: 1280px;
  margin: 4rem auto 0;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--color-border);
}

/* 2. 内容布局 */
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-dim);
  font-size: 0.9rem;
}

/* 3. 版权信息 */
.footer-copyright {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-copyright a {
  color: var(--color-blue);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.footer-copyright a:hover {
  opacity: 0.8;
}

/* 4. 链接列表 */
.footer-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.footer-links a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-dim);
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: var(--color-blue);
  transform: translateY(-1px);
}

.footer-links i {
  font-size: 1.1rem;
}

/* 5. 分隔线 */
.footer-divider {
  width: 1px;
  height: 1rem;
  background: var(--color-border);
  margin: 0 0.5rem;
}

/* 6. 响应式适配 */
@media (max-width: 1320px) {
  .footer {
    margin-left: 1.5rem;
    margin-right: 1.5rem;
  }
}

@media (max-width: 768px) {
  .footer {
    margin: 3rem 1rem 0;
    padding: 1.5rem 0;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }

  .footer-divider {
    display: none;
  }
}

/* 7. 暗色主题适配 */
[data-theme="dark"] .footer-links a:hover {
  color: var(--color-blue-light);
}

[data-theme="dark"] .footer-copyright a {
  color: var(--color-blue-light);
}

/* ===========================================
   ✨ 动画效果样式 (animations.css)
   =========================================== */

/* 1. 基础动画关键帧 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(10px);
  }
}

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

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes slideIn {
  from {
    transform: translateX(-20px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* 2. 加载动画 */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem;
  color: var(--color-text-dim);
  animation: fadeIn 0.3s ease;
}

.fa-spin {
  animation: spin 1s linear infinite;
}

/* 3. 复制成功动画 */
.copy-success {
  animation: fadeIn 0.3s ease;
}

.copy-error {
  animation: pulse 0.3s ease;
}

/* 4. 卡片悬停动画 */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px var(--shadow-color);
}

/* 5. 按钮点击动画 */
.btn-press {
  transition: transform 0.2s ease;
}

.btn-press:active {
  transform: scale(0.95);
}

/* 6. 列表项动画 */
.list-item-appear {
  animation: slideIn 0.3s ease forwards;
  opacity: 0;
}

/* 7. 过渡效果类 */
.transition-all {
  transition: all 0.3s ease;
}

.transition-transform {
  transition: transform 0.3s ease;
}

.transition-opacity {
  transition: opacity 0.3s ease;
}

/* 8. 动画延迟类 */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* 9. 动画持续时间类 */
.duration-300 { animation-duration: 300ms; }
.duration-500 { animation-duration: 500ms; }
.duration-700 { animation-duration: 700ms; }
.duration-1000 { animation-duration: 1000ms; }

/* 10. 动画缓动函数类 */
.ease-in-out { animation-timing-function: ease-in-out; }
.ease-out { animation-timing-function: ease-out; }
.ease-in { animation-timing-function: ease-in; }
.linear { animation-timing-function: linear; }

/* 11. 动画工具类 */
.animate-once {
  animation-iteration-count: 1;
}

.animate-infinite {
  animation-iteration-count: infinite;
}

.animate-hover {
  animation-play-state: paused;
}

.animate-hover:hover {
  animation-play-state: running;
}

/* 12. 性能优化 */
@media (prefers-reduced-motion: reduce) {
  *,
  ::before,
  ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 13. 响应式适配 */
@media (max-width: 768px) {
  .hover-lift:hover {
    transform: none;
    box-shadow: none;
  }
  
  .animate-mobile-none {
    animation: none !important;
    transition: none !important;
  }
}
/* ===========================================
   📱 响应式适配 (responsive.css)
   =========================================== */

/* 1. 大屏幕适配 (1320px以上) */
@media (min-width: 1321px) {
  .container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0;
  }
}

/* 2. 桌面端适配 (1320px) */
@media (max-width: 1320px) {
  /* 布局容器 */
  .container,
  .fixed-section,
  .advantage-section,
  .section-group-wrapper,
  .search-section,
  .header,
  .footer {
    margin-left: 1.5rem;
    margin-right: 1.5rem;
  }
}

/* 3. 平板电脑适配 (1200px) */
@media (max-width: 1200px) {
  /* 网格布局调整 */
  .advantage-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .section-group {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* 卡片内容调整 */
  .lib-main-row {
    gap: 1rem;
  }
  
  .lib-description {
    flex: 1 0 100%;
    margin-top: 0.5rem;
  }
}

/* 4. 平板/大手机适配 (768px) */
@media (max-width: 768px) {
  /* 通用间距调整 */
  .container {
    margin: 0 1rem;
  }

  /* 头部样式 */
  .header {
    padding: 1rem;
    margin: 0 1rem 1.5rem;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    margin: 0.75rem 0 1.5rem;
    flex-wrap: wrap;
  }

  /* 搜索区域 */
  .search-section {
    margin: 1.5rem 1rem;
    padding: 0;
  }

  .search-input {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
  }

  /* 服务优势区域 */
  .advantage-section {
    margin: 1.5rem 1rem;
    padding: 1.5rem;
  }

  .advantage-list {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  /* 热门推荐区域 */
  .fixed-section {
    margin: 1.5rem 1rem;
    padding: 0;
  }

  .library-list {
    padding: 1.5rem;
  }

  .lib-item {
    padding: 1rem;
  }

  /* FAQ与使用说明 */
  .section-group-wrapper {
    margin: 2rem 1rem;
    padding: 0;
  }

  .usage-section,
  .faq-section {
    padding: 1.5rem;
  }

  /* 页脚样式 */
  .footer {
    margin: 3rem 1rem 0;
    padding: 1.5rem 0;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* 5. 小屏手机适配 (480px) */
@media (max-width: 480px) {
  /* 头部样式 */
  .header {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .hero-subtitle {
    justify-content: center;
  }

  /* 标签组样式 */
  .lib-tags {
    justify-content: center;
  }

  /* 按钮组样式 */
  .copy-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

/* 6. 触摸屏优化 */
@media (hover: none) {
  .hover-lift:hover {
    transform: none;
    box-shadow: none;
  }

  .animate-hover {
    animation: none !important;
  }
}

/* 7. 高分屏适配 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .logo-img {
    transform: translateZ(0);
  }
}

/* 8. 打印样式优化 */
@media print {
  .theme-toggle,
  .copy-actions,
  .search-section {
    display: none !important;
  }

  .container {
    margin: 0;
    padding: 0;
  }

  body {
    background: white;
    color: black;
  }
}

/* 9. 减少动画 */
@media (prefers-reduced-motion: reduce) {
  *,
  ::before,
  ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}