/* 03 小屋：全屏手绘房间，左右能拖；画面上不放字，点家具才冒纸签。不显示底栏。 */
.room { position: fixed; inset: 0; overflow: hidden; background: var(--c-paper-blue); max-width: 480px; margin: 0 auto; }

/* 能左右滑的那一层：图片高度 = 屏幕高度，宽度按 3:4 算 */
.room-scroll {
  position: absolute; inset: 0; overflow-x: auto; overflow-y: hidden;
  scrollbar-width: none; -webkit-overflow-scrolling: touch; overscroll-behavior: contain;
}
.room-scroll::-webkit-scrollbar { display: none; }
.room-pic { position: relative; height: 100%; aspect-ratio: 1104 / 1472; }
.room-pic > img { width: 100%; height: 100%; display: block; user-select: none; -webkit-user-drag: none; }

/* 夜里：压暗、窗外星星月亮、关灯后的月光、开灯后的灯光 */
.room-layer { position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .6s ease; }
.room-shade { mix-blend-mode: multiply; }
.room[data-night] .room-shade { opacity: 1; background: var(--room-night-dark); }
.room[data-night][data-light] .room-shade { background: var(--room-night-lit); }
.room-sky { inset: auto; left: 41.9%; top: 27.8%; width: 16.4%; height: 23%; }
.room-sky svg { width: 100%; height: 100%; fill: var(--room-star); }
.room[data-night] .room-sky { opacity: 1; }
.room-moon { mix-blend-mode: screen; background: radial-gradient(ellipse 24% 26% at 46% 38%, rgba(var(--room-moon), .42), transparent 70%); }
.room[data-night]:not([data-light]) .room-moon { opacity: 1; }
.room-lamp {
  mix-blend-mode: screen;
  background:
    radial-gradient(ellipse 30% 22.5% at 49.4% 22.5%, rgba(var(--room-lamp), .62), transparent 75%),
    radial-gradient(ellipse 15.8% 11.8% at 61.3% 50.2%, rgba(var(--room-lamp), .62), transparent 75%),
    radial-gradient(ellipse 12.6% 9.5% at 25.8% 56.6%, rgba(var(--room-lamp), .62), transparent 75%);
}
.room-cone {
  mix-blend-mode: screen; inset: auto; left: 33.6%; top: 22%; width: 31.6%; height: 50%;
  background: linear-gradient(rgba(var(--room-lamp), .3), transparent 85%);
  clip-path: polygon(42% 0, 58% 0, 100% 100%, 0 100%);
}
.room[data-light] .room-lamp, .room[data-light] .room-cone { opacity: .45; }
.room[data-night][data-light] .room-lamp, .room[data-night][data-light] .room-cone { opacity: 1; }

/* 家具：一块看不见的按钮 + 一个淡淡的小光点 */
.spot { position: absolute; border-radius: 12px; }
.spot::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 10px; height: 10px; margin: -5px 0 0 -5px; border-radius: 50%;
  background: rgba(255, 253, 248, .9); opacity: .55;
  box-shadow: 0 0 0 4px rgba(255, 253, 248, .35), 0 0 12px 4px rgba(255, 240, 220, .45);
  animation: glint 2.6s ease-in-out infinite;
}
.spot[aria-expanded="true"]::after { opacity: 1; animation: none; }
@keyframes glint { 50% { opacity: .9; transform: scale(1.2); } }

/* 点了冒出来的纸签 */
.room-tag {
  position: absolute; width: 124px; height: 50px; margin-left: -62px; z-index: 3;
  background: var(--c-paper); border-radius: 8px; box-shadow: 0 6px 14px rgba(20, 30, 60, .25);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px;
  transform: rotate(-2deg); animation: tag-in .22s ease;
}
.room-tag::before {
  content: ""; position: absolute; left: 50%; top: -7px; width: 36px; height: 14px; margin-left: -18px; transform: rotate(-5deg);
  background: repeating-linear-gradient(90deg, var(--tape-blue-a) 0 6px, var(--tape-blue-b) 6px 12px);
}
.room-tag b { font-size: 14px; font-weight: 600; }
.room-tag span { font-size: 12px; color: var(--c-ink-2); }
@keyframes tag-in { from { opacity: 0; transform: rotate(-2deg) translateY(6px) scale(.95); } }

/* 晚安纸条 */
.room-note {
  position: absolute; width: 210px; z-index: 3; padding: 12px 14px;
  background: var(--c-paper); border-radius: 4px 16px 16px 16px; box-shadow: 0 8px 18px rgba(20, 30, 60, .3);
  font-size: 14px; line-height: 1.6; animation: tag-in .25s ease;
}
.room-note::before {
  content: ""; position: absolute; left: 70px; top: -7px; width: 44px; height: 14px; transform: rotate(-4deg);
  background: repeating-linear-gradient(90deg, var(--tape-blue-a) 0 6px, var(--tape-blue-b) 6px 12px);
}
.room-note .script { display: block; font-size: 18px; text-align: right; }

/* 左上回首页、右上拉绳（都不带字） */
.room-home {
  position: absolute; left: 14px; top: calc(env(safe-area-inset-top, 0px) + 12px); z-index: 4;
  width: 44px; height: 44px; border-radius: 50%; background: rgba(255, 253, 248, .82);
  display: flex; align-items: center; justify-content: center; box-shadow: 0 3px 10px rgba(40, 60, 100, .18);
}
.room-home svg { stroke: var(--c-ink); }
.room-cord { position: absolute; right: 22px; top: 0; z-index: 4; width: 44px; display: flex; justify-content: center; }
.room-cord svg { stroke: var(--room-cord); overflow: visible; transition: transform .25s ease; }
.room-cord .knob { fill: var(--c-paper); }
.room[data-light] .room-cord .knob { fill: var(--room-knob-on); }
.room[data-night]:not([data-light]) .room-cord svg { stroke: var(--room-cord-dark); }
.room-cord.pull svg { transform: translateY(14px); }

/* 开门动效：墙（中间挖出门洞）+ 门 + 门缝的光；整层盖在小屋上 */
.door-intro { position: absolute; inset: 0; z-index: 10; overflow: hidden; }
.door-intro .wall {
  position: absolute; background-color: var(--c-grid-bg);
  background-image: linear-gradient(var(--c-grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--c-grid-line) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
}
.door-intro .w-top { left: 0; right: 0; top: 0; height: 19%; }
.door-intro .w-left { left: 0; width: 16.7%; top: 19%; bottom: 8.8%; }
.door-intro .w-right { right: 0; width: 16.7%; top: 19%; bottom: 8.8%; }
.door-intro .floor { position: absolute; left: 0; right: 0; bottom: 0; height: 8.8%; background: var(--door-floor); }
.door-intro .mat { position: absolute; left: 50%; bottom: 2%; width: 200px; margin-left: -100px; }
.door-intro .frame { position: absolute; left: 16.7%; right: 16.7%; top: 19%; bottom: 8.8%; border: 10px solid var(--door-frame); border-bottom: 0; box-shadow: 0 0 0 1px rgba(92, 132, 177, .25), inset 0 0 0 1px rgba(92, 132, 177, .25); }
.door-intro .glow {
  position: absolute; left: 19.2%; right: 19.2%; top: 20.2%; bottom: 8.8%; opacity: 0; mix-blend-mode: screen;
  background: radial-gradient(ellipse 70% 60% at 50% 40%, rgba(var(--room-lamp), .55), transparent 75%);
  transition: opacity .8s ease .3s;
}
.door-intro .hinge { position: absolute; left: 19.2%; right: 19.2%; top: 20.2%; bottom: 8.8%; perspective: 900px; }
.door-intro .door {
  position: absolute; inset: 0; background: var(--door); transform-origin: 0 50%;
  box-shadow: inset -8px 0 14px rgba(70, 100, 140, .12), 0 10px 24px rgba(40, 60, 100, .18);
  transition: transform 1s cubic-bezier(.55, .05, .25, 1) .25s, opacity .35s ease 1.05s;
}
.door-intro .panel { position: absolute; left: 10%; right: 10%; border: 2px solid var(--door-line); }
.door-intro .p1 { top: 5%; height: 37%; border-radius: 10px 10px 4px 4px; }
.door-intro .p2 { top: 47%; height: 45%; border-radius: 4px; }
.door-intro .sign { position: absolute; left: 50%; top: -1%; width: 80px; margin-left: -40px; }
.door-intro .knob {
  position: absolute; right: 8%; top: 50%; width: 22px; height: 22px; border-radius: 50%;
  background: var(--door-knob); box-shadow: 0 2px 4px rgba(70, 60, 40, .3);
}
.door-intro .knob i {
  position: absolute; left: -14px; top: 8px; width: 22px; height: 6px; border-radius: 3px; background: var(--door-knob);
  filter: brightness(.9); transform-origin: 20px 3px; transition: transform .3s ease;
}
.door-intro .walls { position: absolute; inset: 0; transition: opacity .5s ease 1.05s; }
.door-intro[data-open] .knob i { transform: rotate(-40deg); }
.door-intro[data-open] .door { transform: rotateY(-100deg); opacity: 0; }
.door-intro[data-open] .glow { opacity: 1; }
.door-intro[data-open] .walls { opacity: 0; }
.door-intro[data-open] { pointer-events: none; }
/* 门开的时候，后面的房间从放大一点推回原位 */
.room[data-entering] .room-scroll { transform: scale(1.06); }
.room .room-scroll { transition: transform 1.2s cubic-bezier(.2, .7, .2, 1) .35s; }

@media (prefers-reduced-motion: reduce) {
  .spot::after { animation: none; }
  .door-intro, .door-intro * { transition: opacity .4s ease !important; }
  .door-intro[data-open] .door, .door-intro[data-open] .knob i { transform: none; }
  .door-intro[data-open] { opacity: 0; }
  .room .room-scroll { transition: none; }
}