#cinematicBg{
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 22% 18%, rgba(26, 28, 56, 0.5), transparent 36%),
    radial-gradient(circle at 76% 72%, rgba(20, 30, 60, 0.42), transparent 42%),
    linear-gradient(180deg, #02030b, #030613 45%, #020206 100%);
}

.entry-gate{
  position: fixed;
  inset: 0;
  z-index: 60;
  display:flex;
  align-items:center;
  justify-content:center;
  background: rgba(0,0,0,0.0);
}

.entry-simple{
  text-align:center;
}

.entry-line{
  margin: 0 0 12px;
  color: #ffd8ef;
  font-family: "Dancing Script","ZCOOL KuaiLe","PingFang SC","Microsoft YaHei",sans-serif;
  font-size: clamp(1.12rem, 5.2vw, 1.6rem);
  text-shadow: 0 0 14px rgba(255, 94, 192, 0.35);
}

.entry-start-btn{
  display:block;
  margin-left:auto;
  margin-right:auto;
  margin-top: 6px;
  border:0;
  border-radius: 999px;
  padding: 8px 16px;
  color:#fff;
  background: linear-gradient(90deg, #ff4eb5, #ff7bc8);
  box-shadow: 0 0 16px rgba(255, 94, 192, 0.45);
  cursor: pointer;
}

.cinematic-stars,
.cinematic-meteors{
  position:absolute;
  inset:0;
  pointer-events:none;
}

.cinematic-star{
  position:absolute;
  border-radius:999px;
  background: #fff;
  box-shadow: 0 0 10px rgba(255,255,255,.4);
  opacity:.6;
  animation: cStarPulse 2.8s ease-in-out infinite alternate;
}

@keyframes cStarPulse{
  from{ opacity:.25; transform:scale(.8); }
  to{ opacity:.95; transform:scale(1.15); }
}

.cinematic-meteor{
  position:absolute;
  height:2px;
  width:140px;
  transform: rotate(-25deg);
  background: linear-gradient(90deg, rgba(255,255,255,.95), rgba(255,255,255,0));
  opacity:.7;
  animation: cShoot 3.5s linear infinite;
}

@keyframes cShoot{
  0% { transform: translateX(0) translateY(0) rotate(-25deg); opacity:1; }
  100% { transform: translateX(-120vw) translateY(60vh) rotate(-25deg); opacity:0; }
}

.cinematic-content{
  position:absolute;
  left:50%;
  top:18%;
  transform: translateX(-50%);
  width:min(88vw, 540px);
  text-align:center;
  color:#fff;
  z-index:2;
  pointer-events:auto;
}

.cinematic-content h1{
  margin:0;
  font-weight:300;
  line-height:1.5;
  font-size: clamp(1.35rem, 5.8vw, 2.3rem);
  text-shadow: 0 0 16px rgba(255,180,230,.25);
}

.cinematic-content p{
  margin:12px 0 0;
  color: rgba(230,235,255,.82);
  font-size: clamp(.9rem, 3.8vw, 1.06rem);
}

.cinematic-buttons{
  margin-top:22px;
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
}

.cinematic-buttons button{
  pointer-events:auto;
  border:0;
  color:#fff;
  cursor:pointer;
  padding:10px 18px;
  border-radius:999px;
  background: rgba(255,255,255,.12);
  transition: .25s ease;
}
.cinematic-buttons button:hover{ transform: translateY(-1px) scale(1.03); }
.cinematic-buttons .primary{ background: #ec4899; }
.cinematic-buttons .danger{ background: linear-gradient(90deg, #ec4899, #ef4444); }

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #000006;
  color: #ffeef9;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

#meteorCanvas,
#webgl,
#fireworkPhotoLayer,
#vignette,
#flash,
#textParticles,
.overlay {
  position: fixed;
  inset: 0;
}

#meteorCanvas { z-index: 6; pointer-events: none; display:block; }
#webgl { z-index: 3; }
#fireworkPhotoLayer{ z-index: 24; pointer-events:none; overflow:hidden; }
#textParticles{ z-index: 26; pointer-events:none; }
#musicToggle{
  position: fixed;
  right: 12px;
  top: max(12px, env(safe-area-inset-top));
  z-index: 40;
  border: 1px solid rgba(255, 193, 230, 0.65);
  background: rgba(28, 12, 36, 0.55);
  color: #ffd4ef;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  letter-spacing: 0.04em;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 0 16px rgba(255, 115, 194, 0.3);
  cursor: pointer;
}
#introHeart{
  position: fixed;
  left: 50%;
  top: 52%;
  transform: translate(-50%, -50%) scale(0.2);
  z-index: 29;
  pointer-events: none;
  opacity: 0;
  color: #ff5fb7;
  font-size: min(42vw, 240px);
  line-height: 1;
  text-shadow:
    0 0 16px rgba(255, 126, 201, 0.95),
    0 0 34px rgba(255, 88, 175, 0.78),
    0 0 58px rgba(255, 76, 166, 0.55);
}

.fw-photo-card{
  position:absolute;
  width: min(28vw, 132px);
  aspect-ratio: 3 / 4;
  border: 2px solid rgba(255, 223, 168, 0.96);
  box-shadow:
    0 0 18px rgba(255, 201, 120, 0.85),
    inset 0 0 14px rgba(255, 233, 188, 0.3);
  border-radius: 2px;
  overflow: hidden;
  transform-origin: 50% 50%;
  background: transparent;
}

.fw-photo-card img{
  width: 100%;
  height: 100%;
  display:block;
  object-fit: cover;
  background: transparent;
  filter: saturate(1.04) contrast(1.05) brightness(1.03);
}

.final-orbit-ring{
  position:absolute;
  left:50%;
  top:52%;
  width:min(86vw, 430px);
  height:min(74vw, 380px);
  transform: translate(-50%, -50%);
  pointer-events:none;
}

.fw-final-orbit-card{
  position:absolute;
  left:50%;
  top:50%;
  width:min(12vw, 62px);
  aspect-ratio: 3 / 4;
  border: 3px solid rgba(246, 236, 255, 0.95);
  box-shadow:
    0 0 16px rgba(255, 117, 210, 0.52),
    0 0 28px rgba(255, 90, 192, 0.35);
  border-radius: 16px;
  overflow:hidden;
  background: rgba(10, 8, 18, 0.48);
  transform-origin: 50% 50%;
}

.fw-final-orbit-card img{
  width:100%;
  height:100%;
  display:block;
  object-fit: cover;
}

#vignette {
  z-index: 5;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 42%, transparent 38%, rgba(0, 0, 0, 0.34) 80%),
    linear-gradient(180deg, rgba(40, 14, 70, 0.08), rgba(0, 0, 0, 0.22));
}

#flash {
  z-index: 30;
  opacity: 0;
  background: #ffddee;
  pointer-events: none;
}

.overlay{ z-index:20; pointer-events:none; }

.stars-container{
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.55;
  mix-blend-mode:screen;
}

.stars-container::before,
.stars-container::after{
  content:"";
  position:absolute;
  inset:-8%;
  background-image:
    radial-gradient(1px 1px at 12% 18%, rgba(255,255,255,.9), transparent 60%),
    radial-gradient(1px 1px at 22% 72%, rgba(255,210,244,.85), transparent 60%),
    radial-gradient(1.2px 1.2px at 38% 44%, rgba(210,224,255,.85), transparent 60%),
    radial-gradient(1px 1px at 57% 22%, rgba(255,240,250,.8), transparent 60%),
    radial-gradient(1.4px 1.4px at 76% 35%, rgba(255,227,248,.9), transparent 60%),
    radial-gradient(1px 1px at 84% 74%, rgba(227,238,255,.85), transparent 60%),
    radial-gradient(1.2px 1.2px at 66% 86%, rgba(255,239,250,.85), transparent 60%);
  animation: twinkle 4.8s ease-in-out infinite alternate;
}
.stars-container::after{
  opacity:.55;
  filter: blur(.4px);
  animation-duration: 6.2s;
}

@keyframes twinkle{
  from{opacity:.35; transform:translateY(-.4vh)}
  to{opacity:.85; transform:translateY(.6vh)}
}

.card {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(88vw, 480px);
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45), inset 0 0 30px rgba(255, 165, 229, 0.1);
  text-align: center;
  padding: 24px 16px;
}

.title {
  margin: 0;
  font-size: clamp(1.35rem, 6.7vw, 2rem);
  letter-spacing: 0.1em;
  text-shadow: 0 0 20px rgba(255, 173, 228, 0.6);
}

.sub {
  margin: 12px 0 0;
  line-height: 1.8;
  font-size: clamp(0.92rem, 4vw, 1.08rem);
  color: rgba(255, 230, 245, 0.85);
}

.hint {
  margin: 16px 0 0;
  font-size: 0.86rem;
  letter-spacing: 0.1em;
  color: rgba(255, 219, 240, 0.72);
}

#memoryUI {
  position: absolute;
  left: 50%;
  bottom: max(5.6vh, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  text-align: center;
  width: min(90vw, 420px);
}

#memoryText {
  margin: 0;
  font-size: clamp(1.02rem, 4.6vw, 1.3rem);
  letter-spacing: 0.08em;
  text-shadow: 0 0 16px rgba(255, 172, 233, 0.56);
}

#memoryPage {
  margin: 8px 0 0;
  font-size: 0.86rem;
  color: rgba(255, 231, 246, 0.76);
}

#finalText {
  position: absolute;
  left: 50%;
  bottom: 14vh;
  transform: translateX(-50%);
  text-align: center;
  font-size: clamp(1.1rem, 5vw, 1.48rem);
  width: min(90vw, 500px);
  text-shadow: 0 0 16px rgba(255, 181, 237, 0.6);
}

#bookContainer{
  position:absolute;
  left:50%;
  top:50%;
  transform: translate(-50%,-50%);
  width:min(82vw,340px);
  height:min(58vh,460px);
  display:flex;
  align-items:center;
  justify-content:center;
  pointer-events:none;
}

/* 3D 书本改为 WebGL 渲染：隐藏旧 DOM 书本层 */
#bookContainer{ display:none; }

.book{
  position:relative;
  width:100%;
  height:100%;
  perspective: 1400px;
  transform-style:preserve-3d;
}

.book-surface{
  position:absolute;
  inset:0;
  border-radius:18px;
  background: rgba(10,6,18,.58);
  border:1px solid rgba(255,215,245,.14);
  box-shadow: 0 16px 46px rgba(0,0,0,.55), 0 0 28px rgba(255,164,229,.12);
}

.book-spine{
  position:absolute;
  left:50%;
  top:7%;
  transform:translateX(-50%);
  width:2px;
  height:86%;
  background: linear-gradient(180deg, rgba(255,214,243,.85), rgba(255,214,243,.12));
  box-shadow: 0 0 14px rgba(255,183,238,.55);
}

.page{
  position:absolute;
  top:6%;
  left:50%;
  width:49%;
  height:88%;
  transform-style:preserve-3d;
  transform-origin:left center;
  border-radius:0 18px 18px 0;
  overflow:hidden;
  box-shadow: 0 16px 42px rgba(0,0,0,.45);
}

.page.static-left{
  left:1.8%;
  width:48.2%;
  transform-origin:right center;
  border-radius:18px 0 0 18px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.04), 0 14px 34px rgba(0,0,0,.4);
}

.page.static-left .front,
.page.static-left .back{
  border-radius:18px 0 0 18px;
}

.page.static-right{
  left:50%;
  width:48.2%;
}

.page.flip{
  left:50%;
  width:48.2%;
  z-index: 10;
}

.page .front,
.page .back{
  position:absolute;
  inset:0;
  backface-visibility:hidden;
  border-radius:0 18px 18px 0;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.18);
  background: rgba(10,5,18,.8);
}
.page .back{ transform: rotateY(180deg); }

.page img{
  width:100%;
  height:100%;
  object-fit:contain;
  display:block;
  background: rgba(10,5,18,.86);
}

/* 修正翻页背面“镜像”问题：抵消 rotateY(180deg) 的视觉左右翻转 */
.page .back img{
  transform: scaleX(-1);
}

.shine{
  position:absolute;
  inset:0;
  background: linear-gradient(100deg,
    rgba(255,255,255,.26),
    rgba(255,255,255,0) 34%,
    rgba(255,175,240,.22) 70%,
    rgba(255,255,255,.08));
  mix-blend-mode:screen;
  opacity:.65;
  transform: translateX(-18%);
}

.final-message{
  position:absolute;
  left:50%;
  bottom:7vh;
  transform:translateX(-50%);
  width:min(90vw,520px);
  text-align:center;
  font-size: clamp(1.1rem, 5vw, 1.48rem);
  letter-spacing:.08em;
  color: #ff8fd1;
  font-family: "Dancing Script", "ZCOOL KuaiLe", "PingFang SC", "Microsoft YaHei", sans-serif;
  text-shadow: 0 0 16px rgba(255,126,206,.85), 0 0 28px rgba(255,82,186,.48);
  pointer-events:none;
}

.hidden { opacity: 0; visibility: hidden; }