/* 页面切换动画 */
.container {
  opacity: 0;
  animation: fadeIn 0.5s ease-in-out forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

/* --- 浅色模式 (默认) CSS 变量定义 --- */
:root {
  /* --- 颜色变量 --- */
  --bg-color: #f8f5f0;              /* 页面背景色 - 更纯净的米白 */
  --text-color: #3a3a3a;            /* 主要文字颜色 - 更柔和的深灰 */
  --accent-color: #a55860;          /* 强调色 - 现代化的酒红色 */
  --border-color: #e0d6cc;          /* 边框色 - 浅米色 */
  --header-bg: #f0eae1;             /* 表头、引用等背景色 - 浅米黄 */
  --link-color: var(--accent-color); /* 链接默认色 */
  --link-hover: #8a454d;            /* 链接悬停色 - 更深的酒红 */
  
  /* 阴影颜色 */
  --shadow-color: rgba(0, 0, 0, 0.08);
  --shadow-color-offset: rgba(224, 214, 204, 0.4);
  --item-hover-shadow: rgba(0, 0, 0, 0.12);
  
  /* 导航栏特定颜色 */
  --nav-bg-rgba: rgba(248, 245, 240, 0.95);
  --nav-blur: 10px;
  --nav-border-rgba: rgba(224, 214, 204, 0.6);
  --nav-shadow-rgba: rgba(0, 0, 0, 0.06);
  --nav-item-hover-bg: rgba(165, 88, 96, 0.06);
  --nav-item-active-bg: rgba(165, 88, 96, 0.1);
  --nav-item-active-border: rgba(165, 88, 96, 0.15);
  --nav-item-hover-shadow: rgba(0, 0, 0, 0.04);
  
  /* 组件颜色 */
  --tag-bg: #f0eae1;
  --tag-color: var(--text-color);
  --back-to-top-bg: var(--accent-color);
  --back-to-top-hover-bg: var(--link-hover);

  /* --- 过渡与缓动 --- */
  --transition-fast: 0.2s;
  --transition-normal: 0.3s;
  --transition-slow: 0.5s;
  --transition-ease: ease;
  --transition-ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-draw: cubic-bezier(0.25, 0.8, 0.25, 1);

  /* --- 尺寸变量 (字体) --- */
  --font-size-base: 1.1rem;
  --font-size-small: 0.9rem;
  --font-size-tag: 0.85rem;
  --font-size-h1: 2.2rem;
  --font-size-h2: 1.8rem;
  --font-size-h3: 1.5rem;
  --font-size-work-title: 1.6rem;
  --font-size-article-title: 1.6rem;
  --font-size-work-description: 1.05rem;
  --font-size-article-description: 1.05rem;
  --font-size-details-title: 2.2rem;
  --font-size-details-description: var(--font-size-base);

  /* --- 尺寸变量 (布局) --- */
  --border-width: 1.5px;
  --border-radius: 10px;
  --border-radius-container: 8px;
  --border-radius-tag: 20px;
  --padding-container: 45px;
  --padding-item: 24px;
  --padding-tag: 5px 12px;
  --margin-item-bottom: 20px;
  --margin-tag: 4px 6px 0 0;
  --margin-paragraph-bottom: 1.3em;
  --margin-section-top: 25px;
  
  /* 导航栏尺寸 */
  --nav-height: 70px;
  --nav-height-mobile: 60px;
  --nav-height-mobile-sm: 55px;
  --nav-logo-font-size: 1.8rem;
  --nav-logo-font-size-mobile: 1.6rem;
  --nav-logo-font-size-mobile-sm: 1.4rem;
  --nav-item-padding: 12px 22px;
  --nav-item-padding-mobile: 14px 22px;
  --nav-item-padding-mobile-sm: 12px 18px;
  --nav-item-font-size: 1.05rem;
  --nav-item-font-size-mobile: 1.1rem;
  --nav-item-font-size-mobile-sm: 1rem;
  --nav-item-margin: 0 6px;
  --nav-item-margin-mobile: 6px 16px;
  --nav-item-margin-mobile-sm: 5px 12px;

  /* --- 阴影定义 --- */
  --shadow-main: 0 4px 16px var(--shadow-color);
  --shadow-offset: 6px 6px 0 -2px var(--shadow-color-offset);
  --shadow-hover: 0 8px 20px var(--item-hover-shadow);
  --shadow-navbar: 0 2px 12px var(--nav-shadow-rgba);
  --shadow-navbar-mobile: 0 6px 16px rgba(0, 0, 0, 0.1);
  --shadow-back-to-top: 0 3px 12px rgba(0, 0, 0, 0.2);

  /* --- 层级定义 --- */
  --z-index-navbar: 30;
  --z-index-details: 1000;
  --z-index-animation-paper: 1001;
  --z-index-transition: 1000;
  --z-index-back-to-top: 99;
}

/* --- 暗黑模式 CSS 变量定义 --- */
[data-theme="dark"] {
  /* --- 颜色变量 --- */
  --bg-color: #1e1e1e;              /* 页面背景色 - 深灰 */
  --text-color: #e8e8e8;            /* 主要文字颜色 - 浅灰 */
  --accent-color: #d4a5a5;          /* 强调色 - 暗红 */
  --border-color: #444444;          /* 边框色 - 深灰 */
  --header-bg: #2a2a2a;             /* 表头、引用等背景色 - 稍浅的深灰 */
  --link-color: var(--accent-color);/* 链接默认色 */
  --link-hover: #f0c4c4;            /* 链接悬停色 - 浅红 */
  
  /* 阴影颜色 - 暗黑模式下阴影通常需要更柔和或更深 */
  --shadow-color: rgba(0, 0, 0, 0.3);
  --shadow-color-offset: rgba(0, 0, 0, 0.4);
  --item-hover-shadow: rgba(0, 0, 0, 0.4);
  
  /* 导航栏特定颜色 */
  --nav-bg-rgba: rgba(30, 30, 30, 0.95);
  --nav-border-rgba: rgba(68, 68, 68, 0.5);
  --nav-shadow-rgba: rgba(0, 0, 0, 0.3);
  --nav-item-hover-bg: rgba(212, 165, 165, 0.1);
  --nav-item-active-bg: rgba(212, 165, 165, 0.15);
  --nav-item-active-border: rgba(212, 165, 165, 0.3);
  --nav-item-hover-shadow: rgba(0, 0, 0, 0.2);
  
  /* 组件颜色 */
  --tag-bg: #333;
  --tag-color: #ccc;
  --back-to-top-bg: var(--accent-color);
  --back-to-top-hover-bg: var(--link-hover);

  /* --- 阴影定义 (覆盖) --- */
  --shadow-main: 0 4px 16px var(--shadow-color);
  --shadow-offset: 6px 6px 0 -2px var(--shadow-color-offset);
  --shadow-hover: 0 8px 20px var(--item-hover-shadow);
  --shadow-navbar: 0 2px 12px var(--nav-shadow-rgba);
  --shadow-navbar-mobile: 0 6px 16px rgba(0, 0, 0, 0.4);
  --shadow-back-to-top: 0 3px 12px rgba(0, 0, 0, 0.4);
}

/* 重置与基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-color);
  font-family: "Inter", "Segoe UI", "Roboto", "Helvetica Neue", "Arial", "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  color: var(--text-color);
  line-height: 1.7;
  padding: 20px;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color var(--transition-normal) var(--transition-ease), color var(--transition-normal) var(--transition-ease);
}

/* --- 导航栏样式 --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--nav-bg-rgba);
  backdrop-filter: blur(var(--nav-blur));
  -webkit-backdrop-filter: blur(var(--nav-blur));
  border-bottom: 1px solid var(--nav-border-rgba);
  box-shadow: var(--shadow-navbar);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 35px;
  height: var(--nav-height);
  z-index: var(--z-index-navbar);
  transition: all var(--transition-normal) var(--transition-ease);
}

.nav-logo {
  display: flex;
  align-items: center;
}

.logo-text {
  color: var(--accent-color);
  font-family: "Inter", sans-serif;
  font-size: var(--nav-logo-font-size);
  font-weight: 700;
  letter-spacing: 0.5px;
  transition: color var(--transition-normal) var(--transition-ease);
}

.logo-text:hover {
  color: var(--link-hover);
}

.nav-items {
  display: flex;
  align-items: center;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  color: var(--text-color);
  padding: var(--nav-item-padding);
  margin: var(--nav-item-margin);
  cursor: pointer;
  transition: all var(--transition-normal) var(--transition-ease);
  font-family: "Inter", sans-serif;
  font-size: var(--nav-item-font-size);
  letter-spacing: 0.2px;
  text-decoration: none;
  border-radius: 6px;
  position: relative;
  background-color: transparent;
  border: var(--border-width) solid transparent;
  font-weight: 500;
}

.nav-item:hover {
  color: var(--accent-color);
  background-color: var(--nav-item-hover-bg);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px var(--nav-item-hover-shadow);
}

.nav-item.active {
  color: var(--accent-color);
  font-weight: 600;
  background-color: var(--nav-item-active-bg);
  border-color: var(--nav-item-active-border);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px var(--nav-item-hover-shadow);
}

.nav-actions {
  display: flex;
  align-items: center;
  margin-left: auto;
  gap: 12px;
}

/* 明暗模式开关样式 - 带图标版本 */
.theme-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  margin-right: 4px;
  outline: none;
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.slider {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 28px;
  background-color: #ccc;
  border-radius: 34px;
  transition: background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.2s ease;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 滑块圆点 */
.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              background-color 0.2s ease;
  border-radius: 50%;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* 添加图标（太阳/月亮） */
.slider:after {
  position: absolute;
  content: "☀️";
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  transition: opacity 0.2s ease, transform 0.2s ease;
  opacity: 0.6;
  pointer-events: none;
}

input:checked + .slider:after {
  content: "🌙";
  right: auto;
  left: 8px;
  opacity: 0.8;
}

input:checked + .slider {
  background-color: var(--accent-color);
}

input:checked + .slider:before {
  transform: translateX(24px);
}

/* 悬停效果 */
.theme-switch:hover .slider {
  transform: scale(1.02);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.theme-switch:hover .slider:before {
  background-color: #f5f5f5;
}

/* 聚焦样式 */
.theme-switch:focus-within {
  outline: none;
  box-shadow: 0 0 0 3px rgba(165, 88, 96, 0.3);
  border-radius: 34px;
}

/* 暗黑模式下的额外调整 */
[data-theme="dark"] .slider {
  background-color: #555;
}

[data-theme="dark"] .slider:before {
  background-color: #e0e0e0;
}

[data-theme="dark"] input:checked + .slider:before {
  background-color: #fff;
}

/* 移动端汉堡菜单按钮 */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 34px;
  height: 34px;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: background-color var(--transition-normal) var(--transition-ease);
}

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

.mobile-toggle span {
  width: 26px;
  height: 3px;
  background: var(--accent-color);
  margin: 3px 0;
  transition: all var(--transition-normal) var(--transition-ease);
  border-radius: 2px;
}

/* --- 响应式断点 --- */
@media (max-width: 768px) {
  .navbar {
    padding: 0 22px;
    height: var(--nav-height-mobile);
  }

  .logo-text {
    font-size: var(--nav-logo-font-size-mobile);
  }

  .nav-items {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--nav-bg-rgba);
    background-color: rgba(248, 245, 240, 0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 18px 0;
    border-top: 1px solid var(--border-color);
    box-shadow: var(--shadow-navbar-mobile);
    z-index: calc(var(--z-index-navbar) - 1);
  }
  
  [data-theme="dark"] .nav-items {
      background-color: rgba(30, 30, 30, 0.98);
  }

  .nav-items.active {
    display: flex;
  }

  .nav-item {
    margin: var(--nav-item-margin-mobile);
    padding: var(--nav-item-padding-mobile);
    text-align: center;
    border-radius: var(--border-radius);
    font-size: var(--nav-item-font-size-mobile);
  }

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

  .nav-item.active {
    background-color: rgba(165, 88, 96, 0.15);
    border-color: rgba(165, 88, 96, 0.3);
  }
  
  [data-theme="dark"] .nav-item.active {
      background-color: rgba(212, 165, 165, 0.15);
      border-color: rgba(212, 165, 165, 0.3);
  }

  .mobile-toggle {
    display: flex;
  }

  .mobile-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .mobile-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .nav-actions {
      margin-left: 0;
      gap: 8px;
  }
  
  .theme-switch {
    margin-right: 0;
  }
  
  .slider {
    width: 48px;
    height: 26px;
  }
  
  .slider:before {
    height: 20px;
    width: 20px;
  }
  
  .slider:after {
    font-size: 12px;
  }
  
  input:checked + .slider:before {
    transform: translateX(22px);
  }
}

@media (max-width: 480px) {
  .navbar {
    padding: 0 18px;
    height: var(--nav-height-mobile-sm);
  }

  .logo-text {
    font-size: var(--nav-logo-font-size-mobile-sm);
  }

  .nav-item {
    font-size: var(--nav-item-font-size-mobile-sm);
    margin: var(--nav-item-margin-mobile-sm);
    padding: var(--nav-item-padding-mobile-sm);
  }

  .nav-items {
    padding: 12px 0;
  }
  
  .slider {
    width: 44px;
    height: 24px;
  }
  
  .slider:before {
    height: 18px;
    width: 18px;
  }
  
  .slider:after {
    font-size: 11px;
  }
  
  input:checked + .slider:before {
    transform: translateX(20px);
  }
}

/* --- 主体内容样式 --- */
.container {
  max-width: 850px;
  margin: calc(var(--nav-height) + 25px) auto 50px auto;
  background: white;
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-main), var(--shadow-offset), -var(--shadow-offset);
  padding: var(--padding-container);
  position: relative;
  border-radius: var(--border-radius-container);
  transition: background-color var(--transition-normal) var(--transition-ease), border-color var(--transition-normal) var(--transition-ease), box-shadow var(--transition-normal) var(--transition-ease);
}

[data-theme="dark"] .container {
    background: #222;
}

h1, h2, h3, h4, h5, h6 {
  font-family: "Inter", sans-serif;
  color: var(--accent-color);
  margin-top: 1.4em;
  margin-bottom: 0.8em;
  line-height: 1.3;
  font-weight: 700;
}

h1 {
  font-size: var(--font-size-h1);
  text-align: center;
  margin-top: 0.5em;
  margin-bottom: 1.2em;
}

h2 {
  font-size: var(--font-size-h2);
  padding-bottom: 0.4em;
  border-bottom: 2px solid var(--accent-color);
  margin-bottom: 1.2em;
}

h3 {
  font-size: var(--font-size-h3);
}

p {
  margin-bottom: var(--margin-paragraph-bottom);
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--text-color);
}

[data-theme="dark"] p {
    color: #d0d0d0;
}

#mainContent > p:first-of-type,
.content > p:first-of-type {
  margin-top: 0;
}

#mainContent > p:not(:first-of-type),
.content > p:not(:first-of-type) {
  margin-top: 0.8em;
}

a {
  color: var(--link-color);
  text-decoration: none;
  transition: all var(--transition-fast) var(--transition-ease);
  padding: 2px 4px;
  border-radius: 2px;
  background-color: transparent;
  position: relative;
}

a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--link-hover);
  transition: width var(--transition-fast) var(--transition-ease);
}

a:hover {
  color: var(--link-hover);
  transform: translateY(-1px);
}

a:hover::after {
  width: 100%;
}

ul, ol {
  margin-left: 0;
  margin-bottom: var(--margin-paragraph-bottom);
  padding-left: 1.8em;
}

li {
  margin-bottom: 0.6em;
  line-height: 1.7;
}

blockquote {
  margin: 1.8em 0;
  padding: 1.2em 1.6em;
  border-left: 4px solid var(--accent-color);
  background-color: var(--header-bg);
  font-style: italic;
  color: var(--text-color);
  transition: background-color var(--transition-normal) var(--transition-ease), color var(--transition-normal) var(--transition-ease);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

[data-theme="dark"] blockquote {
    color: #d0d0d0;
}

blockquote p {
  margin: 0;
  font-size: 1.05rem;
}

strong {
  font-weight: 600;
  color: var(--accent-color);
}

em {
  font-style: italic;
}

hr {
  border: 0;
  height: 1px;
  background-color: var(--border-color);
  margin: 2.2em 0;
}

/* --- 特定内容区域样式 (如联系信息) --- */
.contact-info {
  margin-top: 2.2em;
}

.contact-info p {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 1.2em;
  text-indent: 0;
  font-size: 1.05rem;
}

.contact-info i {
  color: var(--accent-color);
  font-size: 1.1rem;
  width: auto;
  text-align: left;
  flex-shrink: 0;
  padding-top: 0.1em;
}

/* --- 作品列表样式 --- */
.works-list {
  margin-top: var(--margin-section-top);
  width: 100%;
}

.work-title {
  font-size: var(--font-size-work-title);
  margin: 0;
  color: var(--accent-color);
}

.work-meta {
  display: flex;
  gap: 18px;
  font-size: var(--font-size-small);
  color: #777;
}

[data-theme="dark"] .work-meta {
    color: #aaa;
}

.work-description {
  margin: 0;
  font-size: var(--font-size-work-description);
  line-height: 1.6;
  color: var(--text-color);
}

[data-theme="dark"] .work-description {
    color: #d0d0d0;
}

/* --- 文章列表样式 --- */
.articles-list {
  margin-top: var(--margin-section-top);
  width: 100%;
}

.article-title {
  font-size: var(--font-size-article-title);
  margin: 0;
  color: var(--accent-color);
}

.article-meta {
  display: flex;
  gap: 18px;
  font-size: var(--font-size-small);
  color: #777;
}

[data-theme="dark"] .article-meta {
    color: #aaa;
}

.article-description {
  margin: 0;
  font-size: var(--font-size-article-description);
  line-height: 1.6;
  color: var(--text-color);
}

[data-theme="dark"] .article-description {
    color: #d0d0d0;
}

/* --- 详情页样式 --- */
.work-details-envelope {
  position: fixed;
  top: 50vh;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8) rotate(-5deg);
  width: 750px;
  height: 550px;
  max-width: 90vw;
  max-height: 90vh;
  background-color: white;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius-container);
  box-shadow: var(--shadow-main), var(--shadow-offset), -var(--shadow-offset);
  z-index: var(--z-index-details);
  overflow: hidden;
  opacity: 0;
  transition: none;
  box-sizing: border-box;
  min-height: 220px;
}

[data-theme="dark"] .work-details-envelope {
    background-color: #222;
}

.work-details-envelope.active {
  animation: workDetailsScaleIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.work-details-envelope.closing {
  animation: workDetailsScaleOut 0.4s ease-in forwards;
}

.work-details-content {
  position: relative;
  width: 100%;
  height: 100%;
  padding: var(--padding-item);
  box-sizing: border-box;
  opacity: 0;
  transition: opacity var(--transition-normal) var(--transition-ease);
  overflow-y: auto;
}

.work-details-envelope.active .work-details-content {
  opacity: 1;
}

.work-details-close {
  position: absolute;
  top: 12px;
  right: 18px;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--text-color);
  transition: color var(--transition-normal) var(--transition-ease);
  z-index: 10;
}

.work-details-close:hover {
  color: var(--accent-color);
}

.work-details-title {
  font-size: var(--font-size-details-title);
  text-align: center;
  margin-bottom: 22px;
  color: var(--accent-color);
}

.work-details-description {
  font-size: var(--font-size-details-description);
  line-height: 1.8;
  margin-bottom: 28px;
  color: var(--text-color);
}

[data-theme="dark"] .work-details-description {
    color: #d0d0d0;
}

.work-details-tag {
  margin-bottom: 28px;
}

.work-details-tag strong {
  display: block;
  margin-bottom: 6px;
  color: var(--accent-color);
}

.work-details-tag .work-details-tag-item {
  display: inline-block;
  background-color: var(--tag-bg);
  color: var(--tag-color);
  padding: var(--padding-tag);
  margin: var(--margin-tag);
  border-radius: var(--border-radius-tag);
  font-size: var(--font-size-tag);
}

.work-details-link {
  display: inline-block;
  background: var(--accent-color);
  color: white;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 6px;
  transition: all var(--transition-normal) var(--transition-ease);
  font-weight: 500;
  border: none;
  cursor: pointer;
}

.work-details-link:hover {
  background: var(--link-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--item-hover-shadow);
}

/* --- 通用列表项样式 --- */
.list-item {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--padding-item);
  margin-bottom: var(--margin-item-bottom);
  cursor: pointer;
  transition: all var(--transition-normal) var(--transition-ease);
  box-shadow: 0 2px 10px var(--shadow-color);
  opacity: 0;
  transform: translateY(20px);
  animation: listItemFadeIn 0.6s ease-out forwards;
}

[data-theme="dark"] .list-item {
    background: #222;
    color: var(--text-color);
}

.list-item:nth-child(1) { animation-delay: 0.1s; }
.list-item:nth-child(2) { animation-delay: 0.2s; }
.list-item:nth-child(3) { animation-delay: 0.3s; }
.list-item:nth-child(4) { animation-delay: 0.4s; }
.list-item:nth-child(5) { animation-delay: 0.5s; }
.list-item:nth-child(n+6) { animation-delay: 0.6s; }

.list-item:hover {
  border-color: var(--accent-color);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.list-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.list-item-title {
  font-size: var(--font-size-work-title);
  margin: 0;
  color: var(--accent-color);
  font-weight: 600;
}

.list-item-meta {
  display: flex;
  gap: 18px;
  font-size: var(--font-size-small);
  color: #777;
}

[data-theme="dark"] .list-item-meta {
    color: #aaa;
}

.list-item-description {
  margin: 0;
  font-size: var(--font-size-work-description);
  line-height: 1.6;
  color: var(--text-color);
}

[data-theme="dark"] .list-item-description {
    color: #d0d0d0;
}

/* --- 标签样式 --- */
.tags {
  margin-top: 12px;
}

.tag {
  display: inline-block;
  background-color: var(--tag-bg);
  color: var(--tag-color);
  padding: var(--padding-tag);
  margin: var(--margin-tag);
  border-radius: var(--border-radius-tag);
  font-size: var(--font-size-tag);
  font-weight: 500;
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast) var(--transition-ease);
}

.tag:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 6px var(--shadow-color);
}

/* --- 动画与过渡 --- */
@keyframes drawPaperIn {
  0% {
    transform: translateY(100%) scale(0.95);
    opacity: 0;
  }
  40% {
    transform: translateY(-10px) scale(1.01);
    opacity: 1;
  }
  100% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

@keyframes fadeOutAndShrink {
  0% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
  70% {
    transform: translateY(-40px) scale(1.02);
    opacity: 1;
  }
  100% {
    transform: translateY(0) scale(0.98);
    opacity: 0;
  }
}

/* 列表项淡入动画 */
@keyframes listItemFadeIn {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 作品详情弹窗动画 */
@keyframes workDetailsScaleIn {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8) rotate(-5deg);
  }
  50% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(1.05) rotate(1deg);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
  }
}

@keyframes workDetailsScaleOut {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8) rotate(-5deg);
  }
}

/* 文章内容加载动画 */
@keyframes articleContentFadeIn {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 目录项动画 */
@keyframes tocItemSlideIn {
  0% {
    opacity: 0;
    transform: translateX(-20px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 优化过渡缓动 */
.draw-animation-paper,
.work-details-envelope {
  transition: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.fade-out-shrink {
  animation: fadeOutAndShrink 0.6s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

.draw-animation-paper {
  position: fixed;
  z-index: var(--z-index-animation-paper);
  opacity: 0;
  animation: drawPaperIn 0.7s var(--transition-draw) forwards;
  overflow: hidden;
  box-sizing: border-box;
  background: white;
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-main), var(--shadow-offset), -var(--shadow-offset);
  padding: var(--padding-container);
  border-radius: var(--border-radius-container);
}

[data-theme="dark"] .draw-animation-paper {
    background: #222;
}

.page-transition {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(248, 245, 240, 0.4);
  z-index: var(--z-index-transition);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal) ease-in-out;
}

[data-theme="dark"] .page-transition {
    background-color: rgba(30, 30, 30, 0.4);
}

.page-transition.active {
  opacity: 1;
  pointer-events: auto;
}

/* --- 返回顶部按钮样式 --- */
.back-to-top-btn {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 55px;
  height: 55px;
  background-color: var(--back-to-top-bg);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 1.6rem;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-back-to-top);
  transition: all var(--transition-fast) var(--transition-ease);
  z-index: var(--z-index-back-to-top);
}

.back-to-top-btn:hover {
  background-color: var(--back-to-top-hover-bg);
  transform: scale(1.1) translateY(-3px);
  box-shadow: 0 6px 16px var(--item-hover-shadow);
}

.back-to-top-btn.show {
  display: flex;
  opacity: 1;
}

/* --- 搜索框与标签筛选样式 --- */
#search-container {
  margin: 25px 0;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

#search-input {
  padding: 12px 18px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: "Inter", sans-serif;
  font-size: 1.05rem;
  width: 320px;
  transition: all var(--transition-normal) var(--transition-ease);
  background-color: white;
  color: var(--text-color);
}

[data-theme="dark"] #search-input {
    background-color: #333;
    border-color: #555;
}

#search-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(165, 88, 96, 0.2);
}

[data-theme="dark"] #search-input:focus {
    box-shadow: 0 0 0 3px rgba(212, 165, 165, 0.3);
}

#search-field {
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: "Inter", sans-serif;
  font-size: 1rem;
  background-color: white;
  color: var(--text-color);
  min-width: 130px;
}

[data-theme="dark"] #search-field {
    background-color: #333;
    border-color: #555;
}

@media (max-width: 768px) {
  #search-container {
    flex-direction: column;
    align-items: stretch;
  }

  #search-input,
  #search-field {
    width: 100%;
    margin-bottom: 12px;
  }
}

/* 标签筛选容器 */
.tags-filter {
  margin: 25px 0;
  padding: 14px;
  background-color: var(--header-bg);
  border-radius: var(--border-radius);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--border-color);
  transition: background-color var(--transition-normal) var(--transition-ease), border-color var(--transition-normal) var(--transition-ease);
}

[data-theme="dark"] .tags-filter {
    background-color: #2a2a2a;
    border-color: #444;
}

.filter-label {
  font-weight: 600;
  color: var(--accent-color);
  margin-right: 6px;
}

/* 标签按钮样式 */
.tag-button {
  background-color: var(--tag-bg);
  color: var(--tag-color);
  padding: var(--padding-tag);
  border-radius: var(--border-radius-tag);
  font-size: var(--font-size-tag);
  cursor: pointer;
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast) var(--transition-ease);
  user-select: none;
  font-weight: 500;
}

.tag-button:hover {
  background-color: var(--link-hover);
  color: white;
  border-color: var(--link-hover);
  transform: translateY(-1px);
}

.tag-button.active {
  background-color: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
  transform: scale(1.05);
}

/* 下拉框样式 */
.tag-select {
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: "Inter", sans-serif;
  font-size: 1rem;
  background-color: white;
  color: var(--text-color);
  min-width: 130px;
  cursor: pointer;
}

[data-theme="dark"] .tag-select {
    background-color: #333;
    border-color: #555;
}

/* 自定义滚动条样式 - 符合整体设计 */
/* Webkit 浏览器 (Chrome, Safari, Edge) */
::-webkit-scrollbar {
  width: 10px;          /* 垂直滚动条宽度 */
  height: 10px;         /* 水平滚动条高度 */
}

::-webkit-scrollbar-track {
  background: var(--bg-color);      /* 轨道背景色，跟随主题变量 */
  border-radius: 8px;               /* 圆角，与整体风格协调 */
}

::-webkit-scrollbar-thumb {
  background: var(--accent-color);  /* 滑块颜色，使用强调色 */
  border-radius: 8px;
  transition: background 0.2s ease; /* 平滑过渡 */
}

::-webkit-scrollbar-thumb:hover {
  background: var(--link-hover);    /* 悬停时加深/提亮 */
}

::-webkit-scrollbar-corner {
  background: var(--bg-color);      /* 滚动条相交区域背景色 */
}

/* Firefox 滚动条样式 */
* {
  scrollbar-width: auto;            /* 保持默认宽度 */
  scrollbar-color: var(--accent-color) var(--bg-color); /* 滑块色 轨道色 */
}

/* 自定义光标容器 */
.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.custom-cursor.visible {
  opacity: 1;
}

.custom-cursor svg {
  position: absolute;
  left: 0;
  top: 0;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
  transition: filter 0.2s ease;
}

/* 启用自定义光标时隐藏默认光标 */
body.custom-cursor-enabled {
  cursor: none;
}

/* 可点击元素增强（可选，让自定义光标悬浮时更明显） */
body.custom-cursor-enabled a,
body.custom-cursor-enabled button,
body.custom-cursor-enabled .nav-item,
body.custom-cursor-enabled .list-item {
  cursor: none;
}

/* 针对可点击元素的光标样式变化 */
body.custom-cursor-enabled a:hover,
body.custom-cursor-enabled button:hover,
body.custom-cursor-enabled .nav-item:hover,
body.custom-cursor-enabled .list-item:hover,
body.custom-cursor-enabled .tag-button:hover,
body.custom-cursor-enabled .work-details-close:hover {
  cursor: none;
}

/* 当鼠标离开页面时隐藏自定义光标 */
body.mouse-outside .custom-cursor {
  opacity: 0;
  pointer-events: none;
}

/* 自定义光标圆点（吸附模式下显示） - 空心圆样式 */
.custom-cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 14px;
  height: 14px;
  background: transparent;
  border: 2px solid var(--accent-color);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  display: none;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.5), 0 0 4px rgba(0, 0, 0, 0.2);
  transition: transform 0.05s linear;
}

/* 暗黑模式下圆点边框和阴影调整 */
[data-theme="dark"] .custom-cursor-dot {
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5), 0 0 4px rgba(255, 255, 255, 0.2);
  border-color: var(--accent-color);
}

/* 全局页脚样式 */
.global-footer {
  max-width: 850px;
  margin: 40px auto 20px;
  padding: 20px var(--padding-container);
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-color);
  background-color: var(--bg-color);
  transition: background-color var(--transition-normal) var(--transition-ease), 
              border-color var(--transition-normal) var(--transition-ease);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-info p {
  margin: 4px 0;
  line-height: 1.5;
}

.footer-last-update {
  font-size: 0.85rem;
  opacity: 0.8;
}

.footer-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.footer-social {
  display: flex;
  gap: 20px;
  align-items: center;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--text-color);
  font-size: 1.3rem;
  transition: all var(--transition-fast) var(--transition-ease);
  border-radius: 50%;
  background-color: transparent;
  text-decoration: none;
}

.social-link:hover {
  color: var(--accent-color);
  transform: translateY(-2px);
  background-color: var(--nav-item-hover-bg);
}

.social-link i {
  font-size: 1.4rem;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-link {
  color: var(--accent-color);
  text-decoration: none;
  transition: color var(--transition-fast) var(--transition-ease);
  font-size: 0.9rem;
}

.footer-link:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

/* 响应式布局 */
@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
  
  .footer-right {
    align-items: center;
  }
  
  .footer-social {
    justify-content: center;
  }
  
  .social-link {
    width: 40px;
    height: 40px;
  }
  
  .social-link i {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .footer-social {
    gap: 15px;
  }
  
  .social-link {
    width: 38px;
    height: 38px;
  }
  
  .social-link i {
    font-size: 1.2rem;
  }
}

/* 自定义 Bilibili 图标（ Font Awesome 不支持） */
.social-link .bili-icon {
  display: inline-block;
  width: 1.2em;
  height: 1.2em;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M4.977 3.561a1.31 1.31 0 111.818-1.884l2.828 2.728c.08.078.149.163.205.254h4.277a1.32 1.32 0 01.205-.254l2.828-2.728a1.31 1.31 0 011.818 1.884L17.82 4.66h.848A5.333 5.333 0 0124 9.992v7.34a5.333 5.333 0 01-5.333 5.334H5.333A5.333 5.333 0 010 17.333V9.992a5.333 5.333 0 015.333-5.333h.781L4.977 3.56zm.356 3.67a2.667 2.667 0 00-2.666 2.667v7.529a2.667 2.667 0 002.666 2.666h13.334a2.667 2.667 0 002.666-2.666v-7.53a2.667 2.667 0 00-2.666-2.666H5.333zm1.334 5.192a1.333 1.333 0 112.666 0v1.192a1.333 1.333 0 11-2.666 0v-1.192zM16 11.09c-.736 0-1.333.597-1.333 1.333v1.192a1.333 1.333 0 102.666 0v-1.192c0-.736-.597-1.333-1.333-1.333z'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  filter: brightness(0.8);
  transition: filter 0.2s ease;
}

.social-link:hover .bili-icon {
  filter: brightness(1);
}

[data-theme="dark"] .social-link .bili-icon {
  filter: brightness(0.9);
}

[data-theme="dark"] .social-link:hover .bili-icon {
  filter: brightness(1.2);
}

/* 网站统计样式 */
.site-stats {
  font-size: 0.85rem;
  opacity: 0.75;
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stats-separator {
  opacity: 0.5;
}

/* 暗黑模式微调 */
[data-theme="dark"] .site-stats {
  opacity: 0.7;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .site-stats {
    justify-content: center;
  }
}

/* 弹窗遮罩层 - 背景模糊效果 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(1px);
  -webkit-backdrop-filter: blur(1px);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: auto;
}

.modal-overlay.active {
  opacity: 1;
}

/* 确保弹窗层级高于遮罩层 */
.work-details-envelope {
  z-index: 1000;
}

.list-item-meta-extras {
    margin-top: 5px;
    font-size: 0.85rem;
    color: #888;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.list-item-author,
.list-item-word-count {
    margin-right: 8px;
}