/* ============================================================
   我们的小窝 — 飘浮的小鬼魂装饰（全站共用）
   原型来自项目根的「一个有趣的鬼魂动画（css+js）」，整体缩到
   约 65%（91×104px），通过 .cb-ghost 命名空间避免和站内已有
   .ghost / .star 等通用类名冲突。位置由 ghost.js 用碰撞检测
   挑空白处放置，CSS 这里只负责样式与动画。
   ============================================================ */

.cb-ghost {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 24;
  width: 140px;
  height: 160px;
  transform: scale(0.65);
  transform-origin: top left;
  opacity: 0;                       /* JS 找好位置后再淡入 */
  cursor: pointer;
  outline: none;
  font-size: 0;
  -webkit-user-select: none;
          user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: opacity 0.5s ease;
}

/* 站内多处 CSS 全局重置成 border-box，但原版鬼魂的头 / 身体靠
   `padding-top: 100%` / `85%` 撑高度，这种技巧只有 content-box
   下才生效。这里把鬼魂子树强制还原成 content-box，避免身体崩塌。 */
.cb-ghost,
.cb-ghost *,
.cb-ghost *::before,
.cb-ghost *::after {
  box-sizing: content-box;
}

.cb-ghost.run-away .ghost {
  transform: rotateX(-10deg) scale3d(1.4, 4, 1) translate3d(0, 130%, -30px);
  transition: transform 800ms ease;
}

.cb-ghost.descend .ghost {
  transform: translate3d(0, 130%, 0);
}

.cb-ghost .ghost-container {
  position: relative;
  width: 80px;
  height: 140px;
  padding: 20px 30px 0;
  overflow: hidden;
  perspective: 30px;
}

.cb-ghost .ghost {
  position: relative;
  height: 115px;
  z-index: 1;
  transition: transform 2000ms ease-out;
}

.cb-ghost .ghost.hover {
  animation: cb-ghost-hover 600ms ease-in-out infinite alternate;
}

.cb-ghost .ghost-head {
  position: relative;
  width: 80px;
  height: 0;
  padding-top: 100%;
  border-radius: 100%;
  background-color: #f0efdc;
}

.cb-ghost .ghost-face {
  position: absolute;
  bottom: 10px;
  left: 10px;
  width: 50px;
  height: 30px;
  z-index: 1;
}

.cb-ghost .eyes-row,
.cb-ghost .mouth-row { position: relative; height: 10px; }
.cb-ghost .mouth-row { margin-top: 3px; }

.cb-ghost .eye {
  position: absolute;
  bottom: 0;
  width: 10px;
  height: 10px;
  background-color: #271917;
  border-radius: 100%;
  transition: height 50ms ease;
}
.cb-ghost .eye.left  { left: 5px; }
.cb-ghost .eye.right { right: 5px; }
.cb-ghost .eye.blink { height: 0; }

.cb-ghost .mouth {
  position: absolute;
  left: 50%;
  top: 0;
  height: 10px;
  transform: translate3d(-50%, 0, 0);
}
.cb-ghost .mouth-top {
  width: 18px;
  height: 2px;
  border-radius: 2px 2px 0 0;
  background-color: #271917;
}
.cb-ghost .mouth-bottom {
  position: absolute;
  bottom: 0;
  width: 18px;
  height: 8px;
  overflow: hidden;
  transition: height 150ms ease;
}
.cb-ghost .mouth-bottom::after {
  content: "";
  display: block;
  position: absolute;
  left: 0;
  bottom: 0;
  width: 18px;
  height: 16px;
  border-radius: 100%;
  background-color: #271917;
}
.cb-ghost .mouth.open   .mouth-bottom { height: 16px; }
.cb-ghost .mouth.closed .mouth-bottom { height: 0; }

.cb-ghost .cheek {
  position: absolute;
  top: 0;
  width: 12px;
  height: 4px;
  border-radius: 100%;
  background-color: #f5c1b6;
}
.cb-ghost .cheek.left  { left: 0; }
.cb-ghost .cheek.right { right: 0; }

.cb-ghost .ghost-body {
  position: absolute;
  top: 40px;
  width: 80px;
  height: 0;
  padding-top: 85%;
  background-color: #f0efdc;
}

.cb-ghost .ghost-hand {
  position: absolute;
  width: 22px;
  height: 36px;
  background: #f0efdc;
  border-radius: 100%/90%;
}
.cb-ghost .hand-left {
  left: 0;
  top: 5px;
  transform: rotateZ(-45deg);
  transform-origin: bottom center;
}
.cb-ghost .hand-left.waving {
  animation: cb-ghost-waving 400ms linear;
}
.cb-ghost .hand-right {
  right: -12px;
  top: 10px;
  transform: rotateZ(45deg);
}

.cb-ghost .ghost-skirt {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  display: flex;
  transform: translateY(50%);
}
.cb-ghost .ghost-skirt .pleat {
  width: 20%;
  height: 8px;
  border-radius: 100%;
}
.cb-ghost .ghost-skirt .pleat.down { background-color: #f0efdc; }
/* 原版这里用深色背景遮出波浪边，本站背景是浅色渐变，
   做成透明让页面背景透出来即可。 */
.cb-ghost .ghost-skirt .pleat.up {
  position: relative;
  top: 1px;
  background-color: transparent;
}

.cb-ghost .shadow-container { transition: transform 800ms ease; }
.cb-ghost .shadow-container.disappear {
  transform: scale3d(0, 1, 1);
  transition: transform 400ms ease;
}
.cb-ghost .shadow {
  position: absolute;
  top: calc(100% - 4px);
  left: 0;
  width: 100%;
  height: 8px;
  border-radius: 100%;
  background-color: rgba(50, 70, 90, 0.22);
  z-index: -1;
}
.cb-ghost .shadow-bottom {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 4px;
  overflow: hidden;
}
.cb-ghost .shadow-bottom::after {
  content: "";
  display: block;
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 8px;
  border-radius: 100%;
  background-color: rgba(50, 70, 90, 0.22);
  z-index: 2;
}

.cb-ghost .star {
  position: absolute;
  animation: cb-ghost-twinkle 2s infinite linear;
  transition: top 400ms ease-out, left 400ms ease-out;
}
.cb-ghost .star.round  .star-element { width: 9px; height: 9px; border-radius: 100%; }
.cb-ghost .star.pointy                { transform: rotate(-15deg); }
.cb-ghost .star.pointy .star-element  { width: 6px; height: 6px; }
.cb-ghost .star.pointy .star-element::before,
.cb-ghost .star.pointy .star-element::after {
  content: "";
  display: block;
  position: absolute;
  border-radius: 6px;
}
.cb-ghost .star.pointy .star-element::before {
  width: 12px;
  height: 6px;
  left: -3px;
  top: 0;
  transform: skewX(60deg);
}
.cb-ghost .star.pointy .star-element::after {
  width: 6px;
  height: 12px;
  right: 0;
  bottom: -3px;
  transform: skewY(-60deg);
}
.cb-ghost .star.orange .star-element,
.cb-ghost .star.orange .star-element::before,
.cb-ghost .star.orange .star-element::after { background-color: #df814d; }
.cb-ghost .star.yellow .star-element,
.cb-ghost .star.yellow .star-element::before,
.cb-ghost .star.yellow .star-element::after { background-color: #ffd186; }
.cb-ghost .star.blue   .star-element,
.cb-ghost .star.blue   .star-element::before,
.cb-ghost .star.blue   .star-element::after { background-color: #83d0bc; }

.cb-ghost .star-1 { top: 130%; left: 40%; transition-delay: 200ms; animation-delay:    0ms; z-index: 2; }
.cb-ghost .star-2 { top: 130%; left: 44%; transition-delay: 250ms; animation-delay:  200ms; }
.cb-ghost .star-3 { top: 130%; left: 48%; transition-delay: 300ms; animation-delay:  400ms; z-index: 2; }
.cb-ghost .star-4 { top: 130%; left: 52%; transition-delay: 350ms; animation-delay:  600ms; }
.cb-ghost .star-5 { top: 130%; left: 56%; transition-delay: 400ms; animation-delay:  800ms; z-index: 2; }
.cb-ghost .star-6 { top: 130%; left: 60%; transition-delay: 450ms; animation-delay: 1000ms; }

.cb-ghost.move-stars-out .star-element { animation: cb-ghost-star-entrance 1500ms; }
.cb-ghost.stars-out .star { transition: top 1500ms ease-out, left 1500ms ease-out; }

.cb-ghost.stars-out .star-1 { top: 75%; left:  6%; transition-delay:    0ms,    0ms; }
.cb-ghost.stars-out .star-2 { top: 35%; left: 88%; transition-delay:  200ms,  200ms; }
.cb-ghost.stars-out .star-3 { top:  8%; left: 20%; transition-delay:  400ms,  400ms; }
.cb-ghost.stars-out .star-4 { top: 70%; left: 92%; transition-delay:  600ms,  600ms; }
.cb-ghost.stars-out .star-5 { top: 35%; left:  4%; transition-delay:  800ms,  800ms; }
.cb-ghost.stars-out .star-6 { top:  2%; left: 70%; transition-delay: 1000ms, 1000ms; }
.cb-ghost.stars-out .star-1 .star-element { animation-delay:    0ms; }
.cb-ghost.stars-out .star-2 .star-element { animation-delay:  200ms; }
.cb-ghost.stars-out .star-3 .star-element { animation-delay:  400ms; }
.cb-ghost.stars-out .star-4 .star-element { animation-delay:  600ms; }
.cb-ghost.stars-out .star-5 .star-element { animation-delay:  800ms; }
.cb-ghost.stars-out .star-6 .star-element { animation-delay: 1000ms; }

.cb-ghost.move-stars-in .star-element { animation: cb-ghost-star-exit 400ms linear; }
.cb-ghost.move-stars-in .star-1 .star-element { animation-delay: 100ms; }
.cb-ghost.move-stars-in .star-2 .star-element { animation-delay: 150ms; }
.cb-ghost.move-stars-in .star-3 .star-element { animation-delay: 200ms; }
.cb-ghost.move-stars-in .star-4 .star-element { animation-delay: 250ms; }
.cb-ghost.move-stars-in .star-5 .star-element { animation-delay: 300ms; }
.cb-ghost.move-stars-in .star-6 .star-element { animation-delay: 350ms; }

@keyframes cb-ghost-hover {
  0%   { top: 0; }
  100% { top: 8px; }
}
@keyframes cb-ghost-star-entrance {
  0%   { transform: rotate(-735deg) scale(0, 0); }
  100% { transform: rotate(0)       scale(1, 1); }
}
@keyframes cb-ghost-star-exit {
  0%   { transform: rotate(0)      scale(1, 1); }
  100% { transform: rotate(360deg) scale(0, 0); }
}
@keyframes cb-ghost-twinkle {
  0%   { transform: rotate(0deg)   scale(1, 1); }
  25%  { transform: rotate(10deg)  scale(0.8, 0.8); }
  50%  { transform: rotate(0deg)   scale(0.9, 0.9); }
  75%  { transform: rotate(-20deg) scale(0.6, 0.6); }
  100% { transform: rotate(0deg)   scale(1, 1); }
}
@keyframes cb-ghost-waving {
  0%   { transform: rotate(-45deg); }
  25%  { transform: rotate(-55deg); }
  50%  { transform: rotate(-45deg); }
  75%  { transform: rotate(-55deg); }
  100% { transform: rotate(-45deg); }
}

/* 跟随全站离场动画一起淡出 */
html.pt-leaving .cb-ghost {
  opacity: 0 !important;
  transform: scale(0.65) translateY(-26px) !important;
  pointer-events: none !important;
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .cb-ghost { display: none; }
}

/* ---- 鬼魂的说话气泡 ---------------------------------------
   作为 body 的直接子元素（不放在 .cb-ghost 里，避免被那层
   transform: scale(0.65) 一起缩小、文字模糊）。位置在 mouseenter
   时由 JS 算到鬼魂头顶上方。 */
.cb-ghost__bubble {
  position: fixed;
  z-index: 26;
  padding: 9px 14px;
  border: 2px solid #f0efdc;
  border-radius: 16px;
  background: #ffffff;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
               "Segoe UI", system-ui, sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: #4a4f5c;
  line-height: 1.35;
  white-space: nowrap;
  max-width: min(72vw, 260px);
  box-shadow: 0 8px 22px rgba(60, 80, 110, 0.18);
  opacity: 0;
  transform: translate(-50%, -100%) scale(0.84);
  transform-origin: bottom center;
  pointer-events: none;
  transition:
    opacity 0.28s ease,
    transform 0.34s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.cb-ghost__bubble.is-visible {
  opacity: 1;
  transform: translate(-50%, -100%) scale(1);
}
.cb-ghost__bubble::after {
  /* 朝下的小尾巴，指向鬼魂的头 */
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  width: 12px;
  height: 12px;
  background: #ffffff;
  border-right: 2px solid #f0efdc;
  border-bottom: 2px solid #f0efdc;
  transform: translateX(-50%) rotate(45deg);
}