:root {
  --光标-默认: url("/Images/Common/鼠标-默认.cur"), auto;
  --光标-手指: url("/Images/Common/鼠标-指向.cur"), pointer;
  --中文字体: "Noto Sans SC", 微软雅黑, sans-serif;
  --代码字体: "JetBrains Mono", Consolas, monospace;
  --中文代码混合字体: "JetBrains Mono", Consolas, "Noto Sans SC", 微软雅黑, sans-serif;

  /* 科技感配色 */
  --主色调: #00d4ff;
  --辅助色: #0066cc;
  --背景深色: #0a0a0a;
  --背景渐变: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
  --卡片背景: rgba(255, 255, 255, 0.05);
  --边框发光: 0 0 20px rgba(0, 212, 255, 0.3);
  --文字主色: #ffffff;
  --文字次色: #b0b0b0;
  --悬停效果: rgba(0, 212, 255, 0.1);

  /* 现代科技感效果变量 */
  --霓虹蓝: #00d4ff;
  --霓虹青: #00ffff;
  --科技紫: #8a2be2;
  --发光强度: 0 0 30px;
  --毛玻璃效果: blur(20px);
  --现代阴影: 0 8px 32px rgba(0, 0, 0, 0.1);
  --内发光: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.总区 {
  min-height: 100vh;
  padding: 50px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: var(--背景渐变);
  position: relative;
  overflow: hidden;
}

/* 添加科技感背景效果 */
.总区::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 102, 204, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.标题区 {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
  margin-bottom: 30px;
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  background: linear-gradient(
    135deg,
    rgba(0, 212, 255, 0.1) 0%,
    rgba(0, 102, 204, 0.05) 50%,
    rgba(0, 212, 255, 0.08) 100%
  );
  border-bottom: 1px solid rgba(0, 212, 255, 0.2);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

/* 添加动态背景效果 */
.标题区::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 25% 25%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(0, 102, 204, 0.06) 0%, transparent 50%),
    linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.03) 50%, transparent 100%);
  pointer-events: none;
  z-index: 0;
  animation: backgroundShift 12s ease-in-out infinite;
}

/* 添加移动光影效果 */
.标题区::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(0, 212, 255, 0.08) 15%,
    rgba(0, 212, 255, 0.15) 30%,
    rgba(0, 212, 255, 0.2) 50%,
    rgba(0, 212, 255, 0.15) 70%,
    rgba(0, 212, 255, 0.08) 85%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 0;
  animation: lightSweep 8s ease-in-out infinite;
}

@keyframes backgroundShift {
  0% {
    background: radial-gradient(circle at 25% 25%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
      radial-gradient(circle at 75% 75%, rgba(0, 102, 204, 0.06) 0%, transparent 50%),
      linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.03) 50%, transparent 100%);
  }
  16.67% {
    background: radial-gradient(circle at 30% 30%, rgba(0, 212, 255, 0.09) 0%, transparent 50%),
      radial-gradient(circle at 70% 70%, rgba(0, 102, 204, 0.07) 0%, transparent 50%),
      linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.04) 50%, transparent 100%);
  }
  33.33% {
    background: radial-gradient(circle at 35% 35%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
      radial-gradient(circle at 65% 65%, rgba(0, 102, 204, 0.08) 0%, transparent 50%),
      linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.05) 50%, transparent 100%);
  }
  50% {
    background: radial-gradient(circle at 40% 40%, rgba(0, 212, 255, 0.11) 0%, transparent 50%),
      radial-gradient(circle at 60% 60%, rgba(0, 102, 204, 0.09) 0%, transparent 50%),
      linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.06) 50%, transparent 100%);
  }
  66.67% {
    background: radial-gradient(circle at 35% 35%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
      radial-gradient(circle at 65% 65%, rgba(0, 102, 204, 0.08) 0%, transparent 50%),
      linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.05) 50%, transparent 100%);
  }
  83.33% {
    background: radial-gradient(circle at 30% 30%, rgba(0, 212, 255, 0.09) 0%, transparent 50%),
      radial-gradient(circle at 70% 70%, rgba(0, 102, 204, 0.07) 0%, transparent 50%),
      linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.04) 50%, transparent 100%);
  }
  100% {
    background: radial-gradient(circle at 25% 25%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
      radial-gradient(circle at 75% 75%, rgba(0, 102, 204, 0.06) 0%, transparent 50%),
      linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.03) 50%, transparent 100%);
  }
}

@keyframes lightSweep {
  0% {
    left: -100%;
    opacity: 0;
  }
  10% {
    opacity: 0.3;
  }
  20% {
    opacity: 0.8;
  }
  30% {
    opacity: 1;
  }
  70% {
    opacity: 1;
  }
  80% {
    opacity: 0.8;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    left: 100%;
    opacity: 0;
  }
}

.大标题 {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 75px 40px;
  font-size: 38px;
  gap: 0;
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

/* 重新设计三个元素的布局 */
.标题英文:first-child {
  /* Mark */
  font-family: var(--代码字体);
  font-size: 0.72em;
  font-weight: 700;
  color: var(--主色调);
  text-shadow: 0 0 18px rgba(0, 212, 255, 0.6);
  letter-spacing: 2.4px;
  position: relative;
  padding: 12px 18px;
  border-radius: 10px;
  background: rgba(0, 212, 255, 0.1);
  border: 1.2px solid rgba(0, 212, 255, 0.3);
  backdrop-filter: blur(15px);
  box-shadow: 0 5px 19px rgba(0, 212, 255, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: url("/Images/Common/鼠标-指向.cur"), pointer;
  transform: translateY(0);
  /* 确保文字清晰渲染 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.标题英文:first-child:hover {
  transform: translateY(-5px) scale(1.05);
  background: rgba(0, 212, 255, 0.15);
  border-color: rgba(0, 212, 255, 0.5);
  box-shadow: 0 10px 29px rgba(0, 212, 255, 0.3), 0 0 0 1px rgba(0, 212, 255, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.标题中文 {
  /* 知识 */
  font-family: var(--中文字体);
  font-weight: 500;
  font-size: 0.84em;
  color: var(--文字主色);
  text-shadow: 0 0 15px rgba(255, 255, 255, 0.4);
  letter-spacing: 1.8px;
  position: relative;
  padding: 15px 24px;
  margin: 0 12px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  border: 1.2px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(15px);
  box-shadow: 0 5px 19px rgba(255, 255, 255, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  /* 确保文字清晰渲染 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.标题中文:hover {
  transform: translateY(-4px) scale(1.03);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 7px 24px rgba(255, 255, 255, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.标题英文:last-child {
  /* Down */
  font-family: var(--代码字体);
  font-size: 0.72em;
  font-weight: 700;
  color: var(--主色调);
  text-shadow: 0 0 18px rgba(0, 212, 255, 0.6);
  letter-spacing: 2.4px;
  position: relative;
  padding: 12px 18px;
  border-radius: 10px;
  background: rgba(0, 212, 255, 0.1);
  border: 1.2px solid rgba(0, 212, 255, 0.3);
  backdrop-filter: blur(15px);
  box-shadow: 0 5px 19px rgba(0, 212, 255, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: url("/Images/Common/鼠标-指向.cur"), pointer;
  transform: translateY(0);
  /* 确保文字清晰渲染 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.标题英文:last-child:hover {
  transform: translateY(-5px) scale(1.05);
  background: rgba(0, 212, 255, 0.15);
  border-color: rgba(0, 212, 255, 0.5);
  box-shadow: 0 10px 29px rgba(0, 212, 255, 0.3), 0 0 0 1px rgba(0, 212, 255, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* 添加连接线效果 */
.大标题::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(0, 212, 255, 0.3) 20%,
    rgba(0, 212, 255, 0.6) 50%,
    rgba(0, 212, 255, 0.3) 80%,
    transparent 100%
  );
  z-index: 0;
  opacity: 0.6;
}

/* 添加装饰性元素 */
.大标题::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
  animation: subtleGlow 10s ease-in-out infinite;
  pointer-events: none;
}

@keyframes subtleGlow {
  0%,
  100% {
    opacity: 0.3;
    transform: translate(-50%, -50%) scale(1);
  }
  25% {
    opacity: 0.4;
    transform: translate(-50%, -50%) scale(1.02);
  }
  50% {
    opacity: 0.6;
    transform: translate(-50%, -50%) scale(1.05);
  }
  75% {
    opacity: 0.4;
    transform: translate(-50%, -50%) scale(1.02);
  }
}

/* 添加额外的装饰性光点 */
.标题区 .装饰光点 {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.标题区 .装饰光点::before,
.标题区 .装饰光点::after {
  content: "";
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--主色调);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--主色调);
  animation: floatingLight 15s ease-in-out infinite;
}

.标题区 .装饰光点::before {
  top: 20%;
  left: 15%;
  animation-delay: 0s;
}

.标题区 .装饰光点::after {
  top: 80%;
  right: 15%;
  animation-delay: 7.5s;
}

@keyframes floatingLight {
  0%,
  100% {
    opacity: 0.3;
    transform: translateY(0) scale(1);
  }
  25% {
    opacity: 0.6;
    transform: translateY(-10px) scale(1.2);
  }
  50% {
    opacity: 0.8;
    transform: translateY(-5px) scale(1.1);
  }
  75% {
    opacity: 0.5;
    transform: translateY(-15px) scale(1.3);
  }
}

.目录总区 {
  width: max(95vw, 1200px);
  height: max(800px, calc(100vh - 100px));
  flex-grow: 1;
  display: flex;
  justify-content: center;
  gap: 30px;
  position: sticky;
  top: 50px;
  z-index: 1;
  --目录背景色: var(--主色调);
  --未选目录背景色: rgba(255, 255, 255, 0.05);
}

.目录区 {
  width: 200px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  font-family: var(--中文代码混合字体);
  gap: 12px;
}

.目录 {
  position: relative;
  transition: all 0.25s ease;
}

.目录:not(.当前目录):hover {
  cursor: var(--光标-手指);
}

.目录.当前目录 .目录链接 {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--主色调);
  box-shadow: var(--边框发光);
}

.目录:not(.当前目录):hover .目录链接 {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 3px 12px rgba(255, 255, 255, 0.075);
}

.目录链接 {
  width: 100%;
  height: 45px;
  padding: 0 15px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  background: var(--卡片背景);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  backdrop-filter: blur(10px);
  transition: all 0.25s ease;
}

.目录Logo容器 {
  width: 20px;
  height: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all 0.25s ease;
}

.目录:not(.当前目录):hover .目录Logo容器 {
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.25));
  transform: scale(1.05);
}

.目录Logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.目录.当前目录 .目录标题 {
  color: var(--文字主色);
}

.目录标题 {
  flex-grow: 1;
  font-family: "Noto Sans SC", 微软雅黑, sans-serif;
  font-size: 16px;
  font-weight: 500;
  color: #bbb;
  letter-spacing: 0.5px;
}

.二级目录区 {
  flex-shrink: 0;
  width: min(1200px, calc(100% - 300px));
  min-height: calc(100vh - 200px);
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 20px;
  font-family: "JetBrains Mono", Consolas, "Noto Sans SC", 微软雅黑, sans-serif;
  background: var(--卡片背景);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  backdrop-filter: blur(15px);
  padding: 30px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.条目链接 {
  width: calc(25% - 15px);
  transition: all 0.25s ease;
}

.条目链接:hover {
  cursor: var(--光标-手指);
}

.条目链接:hover .条目链接旋转容器 {
  transform: translateY(-5px);
  background: var(--悬停效果);
  border-color: var(--主色调);
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.2);
}

.条目链接旋转容器 {
  padding: 15px;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 25px;
  transition: all 0.25s ease;
  backdrop-filter: blur(5px);
}

.条目链接旋转容器:hover .链接作者,
.条目链接旋转容器:hover .链接时间 {
  color: var(--主色调);
}

.链接序号与标题 {
  width: 100%;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 12px;
}

.链接作者与时间 {
  font-size: 13px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.链接序号 {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #37c;
  color: var(--文字主色);
  font-size: 12px;
  font-family: "Google Sans Code", monospace;
  text-align: center;
  align-content: center;
  flex-shrink: 0;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(36, 81, 157, 0.5);
}

.链接标题 {
  text-wrap: nowrap;
  flex-shrink: 0;
  font-size: 15px;
  color: var(--文字主色);
  font-weight: 500;
  letter-spacing: 0.3px;
}

.条目链接:hover .链接标题 {
  color: var(--主色调);
  text-shadow: 0 0 5px rgba(0, 212, 255, 0.3);
}

.链接作者与照片 {
  display: flex;
  align-items: center;
  gap: 10px;
}

.链接作者照片 {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.链接作者 {
  color: var(--文字次色);
  font-weight: 400;
}

.链接时间 {
  color: var(--文字次色);
  font-weight: 400;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .标题区 {
    margin-bottom: 20px;
  }

  .大标题 {
    font-size: 30px;
    padding: 80px 20px;
    gap: 0;
  }

  .标题英文:first-child,
  .标题英文:last-child {
    font-size: 0.72em;
    padding: 10px 15px;
    letter-spacing: 2px;
  }

  .标题中文 {
    font-size: 0.84em;
    padding: 12px 18px;
    margin: 0 10px;
    letter-spacing: 1.5px;
  }

  .大标题::after {
    width: 150px;
    height: 150px;
  }

  .大标题::before {
    width: 90%;
  }
}

@media (max-width: 480px) {
  .标题区 {
    margin-bottom: 15px;
  }

  .大标题 {
    font-size: 24px;
    padding: 60px 15px;
    flex-direction: column;
    gap: 15px;
  }

  .标题英文:first-child,
  .标题英文:last-child {
    font-size: 0.72em;
    padding: 8px 12px;
    letter-spacing: 1.5px;
  }

  .标题中文 {
    font-size: 0.84em;
    padding: 10px 15px;
    margin: 0;
    letter-spacing: 1px;
  }

  .大标题::after {
    width: 120px;
    height: 120px;
  }

  .大标题::before {
    display: none;
  }
}

/* 深色模式优化 */
@media (prefers-color-scheme: dark) {
  .标题区 {
    background: linear-gradient(
      135deg,
      rgba(0, 212, 255, 0.12) 0%,
      rgba(0, 102, 204, 0.08) 50%,
      rgba(0, 212, 255, 0.1) 100%
    );
    border-bottom-color: rgba(0, 212, 255, 0.25);
  }

  .标题中文 {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
  }
}

/* 减少动画偏好支持 */
@media (prefers-reduced-motion: reduce) {
  .大标题::after {
    animation: none;
  }

  .标题区::before,
  .标题区::after {
    animation: none;
  }

  .标题区 .装饰光点::before,
  .标题区 .装饰光点::after {
    animation: none;
  }

  .大标题,
  .标题英文:first-child,
  .标题英文:last-child,
  .标题中文 {
    transition: none;
  }

  .标题英文:first-child:hover,
  .标题英文:last-child:hover,
  .标题中文:hover {
    transform: none;
  }
}