/* ══════════════════════════════════════════════════════════════
   有一句话，想认真地告诉你
   设计系统：深墨夜空 · 玫瑰 · 暖金 · 宋体
   ══════════════════════════════════════════════════════════════ */

/* ── 1. 变量与重置 ─────────────────────────────────────────── */
:root{
  --ink:#0b0714;
  --ink-2:#120a1d;
  --plum:#1b1027;
  --rose:#ff8fa3;
  --rose-deep:#e0577a;
  --gold:#f0cd96;
  --cream:#f7efe6;
  --muted:rgba(247,239,230,.62);
  --faint:rgba(247,239,230,.38);
  --line:rgba(240,205,150,.2);
  --line-soft:rgba(247,239,230,.1);

  --serif:"Songti SC","STSong","Noto Serif CJK SC","Source Han Serif SC","SimSun",serif;
  --kai:"Kaiti SC","STKaiti","KaiTi","楷体",var(--serif);
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;

  --ease:cubic-bezier(.22,1,.36,1);
  --ease-soft:cubic-bezier(.4,0,.2,1);

  --nav-h:78px;
  --pad-x:24px;
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none !important}
html,body{height:100%}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--cream);
  font-family:var(--serif);
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,video,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
::selection{background:rgba(255,143,163,.3)}
:focus-visible{outline:1px solid var(--gold);outline-offset:4px}

/* ── 2. 背景层 ─────────────────────────────────────────────── */
.aurora{position:fixed;inset:0;z-index:0;overflow:hidden;background:
  radial-gradient(120% 90% at 50% -10%, #1a0f26 0%, #0b0714 55%, #07040d 100%)}
.aurora .blob{position:absolute;border-radius:50%;will-change:transform}
.b1{width:86vmax;height:86vmax;left:-30vmax;top:-34vmax;
  background:radial-gradient(circle at 50% 50%, rgba(224,87,122,.20), rgba(224,87,122,0) 62%);
  animation:drift1 38s var(--ease-soft) infinite alternate}
.b2{width:74vmax;height:74vmax;right:-28vmax;top:4vmax;
  background:radial-gradient(circle at 50% 50%, rgba(122,92,214,.18), rgba(122,92,214,0) 62%);
  animation:drift2 46s var(--ease-soft) infinite alternate}
.b3{width:80vmax;height:80vmax;left:6vmax;bottom:-42vmax;
  background:radial-gradient(circle at 50% 50%, rgba(240,205,150,.10), rgba(240,205,150,0) 60%);
  animation:drift3 52s var(--ease-soft) infinite alternate}
@keyframes drift1{to{transform:translate3d(7vmax,5vmax,0) scale(1.14)}}
@keyframes drift2{to{transform:translate3d(-6vmax,7vmax,0) scale(1.08)}}
@keyframes drift3{to{transform:translate3d(4vmax,-6vmax,0) scale(1.18)}}

.grain{position:fixed;inset:0;z-index:3;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

.bg-canvas{position:fixed;inset:0;z-index:1;width:100%;height:100%;pointer-events:none;opacity:0;transition:opacity 1.3s var(--ease-soft)}
.bg-canvas.is-on{opacity:1}

/* ── 3. 顶栏 ───────────────────────────────────────────────── */
.topbar{position:fixed;inset:0 0 auto;z-index:22;display:flex;align-items:center;justify-content:space-between;
  padding:calc(14px + env(safe-area-inset-top)) var(--pad-x) 14px;pointer-events:none;
  opacity:0;transform:translateY(-8px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.topbar.is-on{opacity:1;transform:none}
.topbar>*{pointer-events:auto}
.icon-btn{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;position:relative;
  border:1px solid var(--line-soft);background:rgba(255,255,255,.03);backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);transition:border-color .4s,background .4s}
.icon-btn:hover{border-color:var(--line);background:rgba(255,255,255,.07)}
.icon-btn svg{width:20px;height:20px;color:rgba(247,239,230,.8)}
.sound{margin-right:auto}
.sound .wave{opacity:0;transition:opacity .4s}
.sound.is-on .wave{opacity:1}
.sound-bars{position:absolute;inset:auto 0 -0px;display:flex;justify-content:center;gap:2px;height:0}
.sound-bars i{display:none}
.text-btn{font-family:var(--sans);font-size:12px;letter-spacing:.22em;color:var(--muted);
  padding:10px 14px;border:1px solid var(--line-soft);border-radius:999px;background:rgba(255,255,255,.02);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:color .4s,border-color .4s}
.text-btn:hover{color:var(--cream);border-color:var(--line)}
.topbar-right{display:flex;align-items:center}

/* ── 4. 幕（stage）─────────────────────────────────────────── */
#stages{position:relative;z-index:2;height:100%}
.stage{position:fixed;inset:0;display:flex;overflow-y:auto;overscroll-behavior:contain;
  -webkit-overflow-scrolling:touch;opacity:0;visibility:hidden;transform:scale(1.015);
  transition:opacity .95s var(--ease),transform .95s var(--ease),visibility 0s linear .95s;
  padding:calc(76px + env(safe-area-inset-top)) var(--pad-x) calc(var(--nav-h) + 34px);
  scrollbar-width:none}
.stage::-webkit-scrollbar{display:none}
.stage.is-active{opacity:1;visibility:visible;transform:none;transition-delay:0s}
.stage-inner{margin:auto;width:100%;max-width:760px;position:relative}
.stage-inner.center{text-align:center;max-width:720px}
.stage-inner.wide{max-width:1060px;text-align:center}

[data-reveal]{opacity:0;transform:translateY(20px);
  transition:opacity 1s var(--ease),transform 1s var(--ease)}
.stage.is-active [data-reveal]{opacity:1;transform:none}

/* ── 5. 排版 ───────────────────────────────────────────────── */
.eyebrow{display:flex;align-items:center;justify-content:center;gap:14px;margin:0 0 22px;
  font-family:var(--sans);font-size:11px;letter-spacing:.36em;color:var(--gold);opacity:.82}
.eyebrow::before,.eyebrow::after{content:"";width:28px;height:1px;background:linear-gradient(90deg,transparent,var(--gold))}
.eyebrow::after{background:linear-gradient(270deg,transparent,var(--gold))}

.display{margin:0;font-family:var(--serif);font-weight:400;letter-spacing:.08em;
  font-size:clamp(27px,5.8vw,44px);line-height:1.45;color:var(--cream);
  text-wrap:balance;
  text-shadow:0 0 60px rgba(224,87,122,.25)}

.huge{margin:0;font-family:var(--serif);font-weight:400;letter-spacing:.2em;
  font-size:clamp(48px,13.2vw,112px);line-height:1.25;padding-left:.2em;
  background:linear-gradient(180deg,#fff 8%,#ffd9df 46%,#e0577a 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 40px rgba(224,87,122,.35))}
.huge.soft{background:linear-gradient(180deg,#fff 10%,#f7efe6 55%,#f0cd96 100%);
  -webkit-background-clip:text;background-clip:text;filter:drop-shadow(0 0 40px rgba(240,205,150,.22));
  font-size:clamp(44px,11vw,92px);letter-spacing:.16em}

.sub{margin:18px auto 0;max-width:34em;font-size:clamp(13px,3.4vw,15px);
  line-height:2;color:var(--muted);letter-spacing:.08em}
.hint{margin:34px 0 0;font-family:var(--sans);font-size:11px;letter-spacing:.28em;color:var(--faint)}
.sub + .hint{margin-top:26px}
.signature{margin:40px 0 0;font-family:var(--kai);font-size:15px;letter-spacing:.14em;color:var(--gold);opacity:.8}
.credits{margin:14px 0 0;font-family:var(--sans);font-size:10px;letter-spacing:.16em;color:rgba(247,239,230,.26)}
.inline-heart{display:inline-block;width:.62em;height:.62em;margin-left:.16em;vertical-align:.04em;color:var(--rose)}

/* ── 6. 按钮 ───────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 30px;border-radius:999px;font-family:var(--sans);font-size:13.5px;
  letter-spacing:.16em;transition:transform .5s var(--ease),box-shadow .5s var(--ease),
  background .4s,border-color .4s,color .4s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,#ffa7b6,#e0577a 70%);color:#2a040f;font-weight:500;
  box-shadow:0 12px 40px -12px rgba(224,87,122,.75),inset 0 1px 0 rgba(255,255,255,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 48px -12px rgba(224,87,122,.9),inset 0 1px 0 rgba(255,255,255,.5)}
.btn-primary:active{transform:translateY(0) scale(.985)}
.btn-ghost{border:1px solid var(--line);color:var(--cream);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:rgba(240,205,150,.5);background:rgba(255,255,255,.06)}
.btn-quiet{color:var(--faint);font-size:12px;padding:10px 16px}
.btn-quiet:hover{color:var(--muted)}
.btn-lg{padding:17px 44px;font-size:15px;letter-spacing:.22em}

/* ── 7. 序幕 ───────────────────────────────────────────────── */
#gate{padding:0;display:block}
.gate-slides{position:fixed;inset:0;overflow:hidden;background:#0b0714}
.gate-slide{position:absolute;inset:-2%;background-size:cover;background-position:50% 26%;
  background-repeat:no-repeat;opacity:0;transform:scale(1.04);
  transition:opacity 2.6s var(--ease-soft),transform 9s linear;will-change:opacity,transform}
.gate-slide.is-on{opacity:1;transform:scale(1.12)}
@keyframes kenburns{from{transform:scale(1.02)}to{transform:scale(1.12) translateY(-1.5%)}}
.gate-veil{position:fixed;inset:0;background:
  radial-gradient(130% 85% at 50% 30%, rgba(11,7,20,.32), rgba(11,7,20,.9) 74%),
  linear-gradient(180deg, rgba(11,7,20,.92), rgba(11,7,20,.5) 42%, rgba(11,7,20,.97))}
.gate-inner{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:100%;height:100%;text-align:center;padding:calc(80px + env(safe-area-inset-top)) var(--pad-x) 60px}
.gate-title{margin:6px 0 0;font-family:var(--serif);font-weight:400;letter-spacing:.12em;
  font-size:clamp(28px,8vw,58px);line-height:1.5;text-shadow:0 2px 40px rgba(0,0,0,.55),0 0 80px rgba(224,87,122,.25)}
.gate-sub{margin:22px 0 0;font-size:clamp(13px,3.6vw,15px);letter-spacing:.14em;color:var(--muted);
  text-shadow:0 1px 20px rgba(0,0,0,.6)}
.gate-actions{margin-top:clamp(34px,9vh,64px);display:flex;flex-direction:column;align-items:center}
.enter-btn{position:relative;display:inline-flex;align-items:center;justify-content:center;
  padding:16px 40px;border-radius:999px;font-family:var(--sans);font-size:13px;letter-spacing:.3em;
  color:#fff;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.24);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:background .5s,border-color .5s,transform .5s var(--ease);text-indent:.3em}
.enter-btn:hover{background:rgba(255,143,163,.16);border-color:rgba(255,143,163,.6);transform:translateY(-1px)}
.pulse-ring{position:absolute;inset:0;border-radius:999px;border:1px solid rgba(255,143,163,.55);
  animation:ring 3.2s var(--ease-soft) infinite}
@keyframes ring{0%{transform:scale(1);opacity:.65}70%{transform:scale(1.32);opacity:0}100%{opacity:0}}
.gate-tip{margin:auto 0 0;padding-top:40px;font-family:var(--sans);font-size:10.5px;
  letter-spacing:.24em;color:rgba(247,239,230,.34)}
.pass-form{display:flex;flex-direction:column;gap:12px;align-items:center;width:min(340px,86vw)}
.pass-form label{font-family:var(--sans);font-size:11px;letter-spacing:.24em;color:var(--gold);opacity:.8}
.pass-row{display:flex;gap:8px;width:100%}
.pass-row input{flex:1;min-width:0;padding:12px 18px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);color:var(--cream);
  font-family:var(--sans);font-size:13px;letter-spacing:.08em;text-align:center}
.pass-row input::placeholder{color:rgba(247,239,230,.3)}
.mini-btn{padding:12px 22px;border-radius:999px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);font-family:var(--sans);font-size:12px;letter-spacing:.16em}
.pass-err{margin:0;font-family:var(--sans);font-size:11.5px;color:#ffb3c0;letter-spacing:.1em}

/* ── 8. 星河 ───────────────────────────────────────────────── */
.type-block{margin-top:clamp(26px,6vh,48px)}
.typed{display:flex;flex-direction:column;gap:.9em;margin:0;
  font-family:var(--serif);font-size:clamp(17px,4.6vw,25px);line-height:1.9;
  letter-spacing:.12em;color:rgba(247,239,230,.9)}
.typed span{opacity:0;filter:blur(6px);transform:translateY(10px);
  transition:opacity 1.1s var(--ease),filter 1.1s var(--ease),transform 1.1s var(--ease)}
.typed span.in{opacity:1;filter:none;transform:none}
.typed span:last-child{color:#ffe6b8;text-shadow:0 0 34px rgba(240,205,150,.35)}

/* ── 9. 信封与信纸 ─────────────────────────────────────────── */
.envelope-wrap{margin-top:clamp(24px,5vh,40px);display:flex;flex-direction:column;align-items:center;
  perspective:1400px;min-height:min(56vh,420px);justify-content:center}
.envelope{position:relative;width:min(300px,74vw);aspect-ratio:3/2;border-radius:3px;
  transition:transform .8s var(--ease),opacity .6s var(--ease);transform-style:preserve-3d}
.envelope:hover{transform:translateY(-4px) rotateX(4deg)}
.env-body{position:absolute;inset:0;border-radius:3px;
  background:linear-gradient(155deg,#f3e7d6,#e6d3bb 60%,#dcc6a8);
  box-shadow:0 30px 60px -24px rgba(0,0,0,.85),inset 0 1px 0 rgba(255,255,255,.6)}
.env-body::before,.env-body::after{content:"";position:absolute;inset:0;border-radius:3px;opacity:.9;z-index:1}
.env-body::before{clip-path:polygon(0 100%,50% 42%,100% 100%);background:linear-gradient(0deg,#e9d8bf,#f6ecdd)}
.env-body::after{clip-path:polygon(0 0,50% 58%,100% 0);background:linear-gradient(180deg,#f7eee0,#e3cfb4);
  box-shadow:0 6px 14px -8px rgba(0,0,0,.5)}
.env-flap{position:absolute;inset:0;clip-path:polygon(0 0,50% 58%,100% 0);z-index:2;
  background:linear-gradient(180deg,rgba(0,0,0,.06),transparent);pointer-events:none}
.env-seal{position:absolute;left:50%;top:46%;translate:-50% -50%;width:58px;height:58px;border-radius:50%;z-index:3;
  display:grid;place-items:center;color:rgba(255,225,230,.9);
  background:radial-gradient(circle at 36% 30%,#c94b64,#8e1f36 72%);
  box-shadow:0 10px 22px -6px rgba(0,0,0,.75),inset 0 2px 6px rgba(255,255,255,.3),
  inset 0 -3px 8px rgba(0,0,0,.28);
  transition:transform .7s var(--ease),opacity .5s}
.env-seal svg{width:26px;height:26px;opacity:.92}
.envelope:hover .env-seal{transform:scale(1.06)}
.env-hint{position:absolute;left:0;right:0;bottom:-38px;font-family:var(--sans);font-size:11px;
  letter-spacing:.26em;color:var(--faint);transition:opacity .4s}
.envelope.is-open{opacity:0;transform:translateY(-40px) rotateX(-24deg) scale(.94);pointer-events:none}

.letter{width:min(560px,92vw);text-align:left;animation:letterIn 1.4s var(--ease) both}
@keyframes letterIn{from{opacity:0;transform:translateY(40px) rotateX(-8deg)}to{opacity:1;transform:none}}
.letter-paper{position:relative;padding:clamp(26px,6vw,46px) clamp(22px,5.4vw,40px) clamp(24px,5vw,38px);
  border-radius:2px;color:#3b2a26;
  background:
    radial-gradient(90% 70% at 8% 0%, rgba(255,255,255,.85), transparent 60%),
    linear-gradient(160deg,#fbf4e8,#f4e8d5 58%,#eeddc4);
  box-shadow:0 40px 80px -34px rgba(0,0,0,.9),0 2px 0 rgba(255,255,255,.5) inset;
  background-blend-mode:normal}
.letter-paper::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;border-radius:2px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='p'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23p)' opacity='.06'/%3E%3C/svg%3E")}
.letter-head{margin:0 0 20px;font-family:var(--kai);font-size:22px;letter-spacing:.2em;color:#7a2338}
.letter-body p{margin:0 0 1.05em;font-family:var(--kai);font-size:clamp(15.5px,4.1vw,17.5px);
  line-height:2.05;letter-spacing:.05em;text-align:justify;color:#43302b}
.letter-body p:last-child{margin-bottom:0}
.letter-sign{margin:26px 0 0;text-align:right;font-family:var(--kai);font-size:15px;color:#7a2338;opacity:.9}
.letter .hint{margin:24px 0 0;text-align:center;color:rgba(247,239,230,.3)}
.caret{display:inline-block;width:2px;height:1em;margin-left:2px;background:#7a2338;
  vertical-align:-.12em;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* ── 10. 相册 · 樱花轮播 ──────────────────────────────────── */
.carousel{position:relative;margin-top:clamp(16px,3.2vh,28px);display:flex;flex-direction:column;
  align-items:center;width:100%}
.carousel::before{content:"";position:absolute;left:50%;top:8%;translate:-50% 0;width:74%;height:64%;
  border-radius:50%;background:radial-gradient(circle,rgba(255,143,163,.26),rgba(255,143,163,0) 68%);
  filter:blur(34px);z-index:0;pointer-events:none}

.car-petals{position:absolute;inset:-48px -10px 0;pointer-events:none;overflow:hidden;z-index:-1}
.car-petals i{position:absolute;top:-8%;width:var(--s,14px);height:var(--s,14px);
  background:linear-gradient(150deg,rgba(255,232,238,.95),rgba(255,151,175,.85));
  border-radius:100% 0 100% 0;opacity:0;filter:blur(.3px);
  animation:petalDrift var(--dur,15s) linear infinite;animation-delay:var(--delay,0s)}
.car-petals i:nth-child(3n){border-radius:0 100% 0 100%;
  background:linear-gradient(150deg,rgba(255,244,236,.9),rgba(240,205,150,.75))}
.car-petals i:nth-child(4n){filter:blur(1.2px);opacity:.9}
@keyframes petalDrift{
  0%{transform:translate3d(0,-12%,0) rotate(0deg);opacity:0}
  10%{opacity:var(--o,.55)}
  85%{opacity:var(--o,.55)}
  100%{transform:translate3d(var(--dx,26px),130%,0) rotate(var(--rot,260deg));opacity:0}}

.car-stage{position:relative;width:min(70vw,320px,36vh);aspect-ratio:3/4;z-index:3}
.slide{position:absolute;inset:0;padding:9px;border-radius:3px;cursor:pointer;
  background:linear-gradient(168deg,#fdf7ec,#f2e6d3);
  box-shadow:0 26px 54px -26px rgba(0,0,0,.9),0 1px 0 rgba(255,255,255,.65) inset;
  opacity:0;pointer-events:none;backface-visibility:hidden;
  transform-origin:50% 62%;will-change:transform,opacity,filter;
  transition:opacity .4s ease,filter .4s ease,transform .4s ease}
.slide img{width:100%;height:100%;object-fit:cover;display:block;background:#d8c9b4;
  border-radius:1px;pointer-events:none}
.slide::after{content:"";position:absolute;inset:9px;pointer-events:none;
  background:linear-gradient(118deg,rgba(255,255,255,.34),transparent 44%)}
.slide.is-active::before{content:"";position:absolute;inset:9px;border-radius:1px;z-index:2;
  pointer-events:none;mix-blend-mode:screen;
  background:linear-gradient(104deg,transparent 38%,rgba(255,255,255,.62) 50%,transparent 62%);
  background-size:280% 100%;background-position:130% 0;
  animation:sweep 1.7s var(--ease) .1s both}
@keyframes sweep{
  0%{background-position:135% 0;opacity:0}
  22%{opacity:1}
  100%{background-position:-45% 0;opacity:0}}
.slide.is-active{opacity:1;z-index:5;pointer-events:auto;
  box-shadow:0 44px 78px -30px rgba(0,0,0,.94),0 0 0 1px rgba(240,205,150,.5),
    0 0 90px -12px rgba(255,143,163,.55)}

/* 四种出场方式，轮流用 */
.slide.enter-1{animation:ent1 1.35s var(--ease) both}
.slide.enter-2{animation:ent2 1.25s var(--ease) both}
.slide.enter-3{animation:ent3 1.15s var(--ease) both}
.slide.enter-4{animation:ent4 1.35s var(--ease) both}
@keyframes ent1{
  0%{opacity:0;filter:blur(28px) brightness(2.8) saturate(1.6);transform:scale(1.18)}
  45%{opacity:1;filter:blur(9px) brightness(1.55) saturate(1.25)}
  100%{opacity:1;filter:none;transform:none}}
@keyframes ent2{
  0%{opacity:0;transform:perspective(1300px) rotateY(-78deg) translateX(32%) scale(.9)}
  55%{opacity:1;transform:perspective(1300px) rotateY(8deg) translateX(-2%) scale(1.015)}
  100%{opacity:1;transform:none}}
@keyframes ent3{
  0%{clip-path:inset(0 100% 0 0);transform:scale(1.07)}
  100%{clip-path:inset(0 0 0 0);transform:none}}
@keyframes ent4{
  0%{opacity:0;transform:translateY(70px) scale(.8) rotate(-4deg);filter:blur(16px)}
  62%{opacity:1;filter:blur(2px);transform:translateY(-6px) scale(1.01) rotate(.6deg)}
  100%{opacity:1;transform:none;filter:none}}

.car-halo{position:absolute;left:50%;top:44%;width:84%;aspect-ratio:1;translate:-50% -50%;
  border-radius:50%;z-index:1;pointer-events:none;opacity:0;
  background:radial-gradient(circle,rgba(255,244,240,.55),rgba(255,143,163,.2) 42%,transparent 70%);
  filter:blur(20px)}
.car-halo.pulse{animation:haloPulse 1.6s var(--ease) both}
@keyframes haloPulse{0%{opacity:0;transform:scale(.5)}22%{opacity:1}100%{opacity:0;transform:scale(1.6)}}

.car-btn{position:absolute;top:50%;translate:0 -50%;z-index:6;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;color:var(--cream);
  background:rgba(11,7,20,.5);border:1px solid rgba(240,205,150,.28);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:background .4s,border-color .4s,transform .4s var(--ease)}
.car-btn svg{width:18px;height:18px}
.car-btn:hover{background:rgba(224,87,122,.34);border-color:rgba(255,143,163,.6)}
.car-prev{left:max(4px,calc(50% - min(36vw,160px) - 26px))}
.car-next{right:max(4px,calc(50% - min(36vw,160px) - 26px))}

.car-meta{margin-top:clamp(20px,3.6vh,30px);text-align:center;position:relative;z-index:5;
  min-height:96px;width:100%}
.car-cap{margin:0 auto;max-width:24em;min-height:2.9em;font-family:var(--kai);
  font-size:clamp(13.5px,3.8vw,16px);line-height:1.85;letter-spacing:.06em;color:var(--gold);
  opacity:0;transform:translateY(6px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.car-cap.in{opacity:.92;transform:none}
.car-foot{margin-top:14px;display:flex;align-items:center;justify-content:center;gap:16px}
.car-dots{display:flex;gap:6px;align-items:center}
.car-dots button{width:5px;height:5px;border-radius:999px;background:rgba(247,239,230,.24);
  transition:width .5s var(--ease),background .4s;padding:0}
.car-dots button.is-on{width:20px;background:linear-gradient(90deg,#ffb3c0,#e0577a);
  box-shadow:0 0 12px rgba(224,87,122,.6)}
.car-count{font-family:var(--sans);font-size:10.5px;letter-spacing:.24em;color:rgba(247,239,230,.38)}

/* ── 11. 影厅 ──────────────────────────────────────────────── */
.cinema{margin-top:clamp(26px,5vh,40px);display:flex;flex-direction:column;align-items:center}
.screen{position:relative;width:min(74vw,320px);aspect-ratio:3/4;border-radius:4px;overflow:hidden;
  background:#000;box-shadow:0 50px 90px -40px rgba(224,87,122,.6),0 0 0 1px rgba(240,205,150,.28),
  0 0 0 8px rgba(255,255,255,.02),0 0 0 9px rgba(240,205,150,.1)}
.screen video{width:100%;height:100%;object-fit:cover}
.screen::after{content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 60px 10px rgba(0,0,0,.55);border-radius:4px}
.screen-glare{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(122deg,rgba(255,255,255,.12),transparent 38%);mix-blend-mode:overlay}
.play-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:66px;height:66px;border-radius:50%;
  display:grid;place-items:center;color:var(--cream);z-index:2;
  background:rgba(11,7,20,.42);border:1px solid rgba(247,239,230,.34);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  transition:opacity .5s,transform .5s var(--ease),background .4s}
.play-btn svg{width:26px;height:26px;margin-left:3px}
.play-btn:hover{background:rgba(224,87,122,.4);transform:translate(-50%,-50%) scale(1.06)}
.play-btn.is-hidden{opacity:0;pointer-events:none;transform:translate(-50%,-50%) scale(.8)}
.cinema-cap{margin:26px 0 0;font-family:var(--kai);font-size:14px;letter-spacing:.14em;color:var(--gold);opacity:.85}

/* ── 12. 摄像头 ────────────────────────────────────────────── */
.camera-shell{margin-top:clamp(26px,5vh,42px);display:flex;flex-direction:column;align-items:center;gap:22px}
.camera-frame{position:relative;width:min(66vw,290px);aspect-ratio:100/92;
  -webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 92'%3E%3Cpath d='M50 88S6 61.5 6 33.4C6 17.6 18 8 30.9 8 39.4 8 46 12.6 50 19.4 54 12.6 60.6 8 69.1 8 82 8 94 17.6 94 33.4 94 61.5 50 88 50 88z' fill='%23000'/%3E%3C/svg%3E");
  mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 92'%3E%3Cpath d='M50 88S6 61.5 6 33.4C6 17.6 18 8 30.9 8 39.4 8 46 12.6 50 19.4 54 12.6 60.6 8 69.1 8 82 8 94 17.6 94 33.4 94 61.5 50 88 50 88z' fill='%23000'/%3E%3C/svg%3E");
  -webkit-mask-size:100% 100%;mask-size:100% 100%;
  -webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;
  background:radial-gradient(circle at 50% 40%,#241431,#100a19 70%);
  box-shadow:0 0 90px -10px rgba(224,87,122,.5)}
.camera-frame::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 50% 42%,transparent 45%,rgba(11,7,20,.55) 100%)}
.camera-frame video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1);opacity:0;transition:opacity .8s}
.camera-frame.is-live video{opacity:1}
.camera-frame.is-shot video{opacity:0}
.camera-idle{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;color:rgba(247,239,230,.4);transition:opacity .6s}
.camera-idle p{margin:0;font-family:var(--sans);font-size:11px;letter-spacing:.22em}
.cam-icon{width:34px;height:34px;color:rgba(247,239,230,.34)}
.camera-frame.is-live .camera-idle{opacity:0;pointer-events:none}
.camera-snap{position:absolute;inset:0}
.camera-snap img{width:100%;height:100%;object-fit:contain;object-position:center}
.camera-frame.is-shot{-webkit-mask-image:none;mask-image:none;aspect-ratio:1032/1074;
  background:transparent;box-shadow:0 34px 70px -30px rgba(0,0,0,.92)}
.camera-frame.is-shot::after{display:none}
.camera-frame.is-shot .heart-outline{opacity:0}
.camera-frame.is-shot .camera-snap img{object-fit:cover}
.heart-outline{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;
  color:rgba(240,205,150,.42);filter:drop-shadow(0 0 12px rgba(255,143,163,.35))}
.camera-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:6px}
.privacy{display:flex;align-items:center;gap:8px;margin:0;font-family:var(--sans);font-size:10.5px;
  letter-spacing:.1em;color:rgba(247,239,230,.4);max-width:30em;line-height:1.7;text-align:left}
.privacy svg{width:15px;height:15px;flex:none;color:rgba(240,205,150,.6)}
.cam-fallback{margin-top:6px;display:flex;flex-direction:column;align-items:center;gap:20px;width:100%}
.fallback-text{margin:0;font-size:13.5px;line-height:2;color:var(--muted);letter-spacing:.08em}
.fallback-photo{width:min(58vw,230px);padding:8px 8px 0;background:linear-gradient(170deg,#fdf7ec,#f2e6d3);
  rotate:-2deg;box-shadow:0 30px 60px -26px rgba(0,0,0,.9)}
.fallback-photo img{width:100%;aspect-ratio:3/4;object-fit:cover}
.fallback-cap{margin:0;padding:11px 4px 14px;font-family:var(--kai);font-size:11.5px;color:#584038;line-height:1.6;text-align:left}

/* ── 13. 未来清单 ──────────────────────────────────────────── */
.wishlist{list-style:none;margin:clamp(28px,5vh,42px) 0 0;padding:0;text-align:left;
  border-top:1px solid var(--line-soft)}
.wish{display:flex;align-items:center;gap:16px;width:100%;padding:17px 4px;text-align:left;
  border-bottom:1px solid var(--line-soft);transition:background .4s,padding .4s var(--ease)}
.wish:hover{background:rgba(255,255,255,.022);padding-left:10px}
.wish-idx{flex:none;width:22px;font-family:var(--serif);font-size:11px;letter-spacing:.1em;
  color:rgba(240,205,150,.5)}
.wish-text{flex:1;font-family:var(--kai);font-size:clamp(14.5px,3.9vw,17px);line-height:1.7;
  letter-spacing:.06em;color:rgba(247,239,230,.86);transition:color .5s}
.wish-box{flex:none;width:24px;height:24px;border-radius:50%;border:1px solid rgba(240,205,150,.4);
  display:grid;place-items:center;transition:background .45s,border-color .45s,transform .45s var(--ease)}
.wish-box svg{width:13px;height:13px;color:#2a040f;opacity:0;transform:scale(.4);
  transition:opacity .35s,transform .45s var(--ease)}
.wish.is-done .wish-box{background:linear-gradient(135deg,#ffb3c0,#e0577a);border-color:transparent;transform:scale(1.06)}
.wish.is-done .wish-box svg{opacity:1;transform:none}
.wish.is-done .wish-text{color:var(--gold)}
.wish-foot{margin-top:26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.wish-progress{display:flex;align-items:center;gap:10px;font-family:var(--sans);font-size:11.5px;
  letter-spacing:.2em;color:var(--muted)}
.wish-dot{width:5px;height:5px;border-radius:50%;background:var(--rose);box-shadow:0 0 12px var(--rose-deep)}
.wish-foot .hint{margin:0;font-size:10.5px}

/* ── 14. 三个秘密 ──────────────────────────────────────────── */
.secrets{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:clamp(28px,5vh,44px);
  perspective:1600px}
.flip{position:relative;aspect-ratio:3/4.1;border:0;padding:0;background:none;
  transform-style:preserve-3d;transition:transform .95s var(--ease);border-radius:6px}
.flip.is-flipped{transform:rotateY(180deg)}
.flip-face{position:absolute;inset:0;border-radius:6px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:14px;padding:18px;text-align:center;
  backface-visibility:hidden;-webkit-backface-visibility:hidden;overflow:hidden}
.flip-front{background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line-soft);box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.flip-front::after{content:"";position:absolute;inset:12px;border:1px solid rgba(240,205,150,.14);border-radius:3px}
.flip-tag{font-family:var(--sans);font-size:9.5px;letter-spacing:.3em;color:var(--gold);opacity:.72}
.flip-face-text{font-family:var(--serif);font-size:clamp(14px,3.5vw,17px);letter-spacing:.12em;line-height:1.8;color:var(--cream)}
.flip-back{transform:rotateY(180deg);justify-content:center;
  background:linear-gradient(160deg,#f6ead8,#ead6ba);color:#3f2c26;
  box-shadow:0 26px 50px -24px rgba(0,0,0,.9)}
.flip-back p{margin:0;font-family:var(--kai);font-size:clamp(12.5px,3.2vw,14.5px);
  line-height:1.95;letter-spacing:.04em;text-align:left}
.flip-back .flip-tag{color:#8a4a56;opacity:.8;margin-bottom:2px}
.flip:hover .flip-front{border-color:rgba(240,205,150,.35)}

/* ── 15. 表白 ──────────────────────────────────────────────── */
#s8 .stage-inner{padding-top:6vh}
.confess-body{margin:clamp(26px,5vh,40px) 0 0}
.confess-body p{margin:0 auto 10px;max-width:22em;font-family:var(--kai);font-size:clamp(15px,4.2vw,18px);
  line-height:2.05;letter-spacing:.08em;color:rgba(247,239,230,.86);text-wrap:balance}
.confess-q{margin:clamp(30px,6vh,46px) 0 0;font-family:var(--serif);font-size:clamp(20px,5.6vw,30px);
  letter-spacing:.14em;color:#ffe9c4;text-shadow:0 0 40px rgba(240,205,150,.35)}
.choice{margin-top:clamp(30px,6vh,46px);display:flex;align-items:center;justify-content:center;
  gap:16px;flex-wrap:wrap;position:relative;min-height:56px}
#btn-no{transition:transform .45s var(--ease),opacity .45s,font-size .45s}
.choice-note{margin:22px 0 0;font-family:var(--sans);font-size:11.5px;letter-spacing:.16em;
  color:var(--faint);animation:fadeUp .9s var(--ease) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.speak-btn{margin-top:clamp(26px,5vh,40px);display:inline-flex;align-items:center;gap:9px;
  padding:10px 18px;border-radius:999px;font-family:var(--sans);font-size:11px;letter-spacing:.16em;
  color:rgba(247,239,230,.5);border:1px solid var(--line-soft);transition:color .4s,border-color .4s}
.speak-btn:hover{color:var(--cream);border-color:var(--line)}
.speak-btn svg{width:15px;height:15px}
.speak-btn.is-playing{color:var(--gold);border-color:rgba(240,205,150,.4)}

/* ── 16. 尾声 ──────────────────────────────────────────────── */
#s9 .finale-slides{position:fixed;inset:-4%;z-index:0;pointer-events:none;
  opacity:0;transition:opacity 2.4s var(--ease-soft)}
#s9.is-active .finale-slides{opacity:.55}
#s9 .finale-slide{position:absolute;inset:0;background-size:cover;background-position:50% 30%;
  background-repeat:no-repeat;opacity:0;transform:scale(1.03);
  filter:blur(1.5px) saturate(1) brightness(.72);
  transition:opacity 2.4s var(--ease-soft),transform 11s linear;will-change:opacity,transform}
#s9 .finale-slide.is-on{opacity:1;transform:scale(1.12)}
#s9 .finale-veil{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(120% 95% at 50% 36%, rgba(11,7,20,.34), rgba(11,7,20,.92) 80%)}
#s9 .stage-inner{position:relative;z-index:2}
.finale-cap{position:fixed;left:calc(20px + env(safe-area-inset-left));z-index:2;
  bottom:calc(108px + env(safe-area-inset-bottom));margin:0;padding-left:12px;max-width:min(58vw,320px);
  border-left:1px solid rgba(240,205,150,.32);
  font-family:var(--kai);font-size:12.5px;line-height:1.75;letter-spacing:.06em;
  color:rgba(247,239,230,.62);text-shadow:0 2px 14px rgba(0,0,0,.75);
  opacity:0;transform:translateY(8px);
  transition:opacity 1s var(--ease),transform 1s var(--ease);pointer-events:none}
.finale-cap.in{opacity:1;transform:none}
.finale-text{margin:clamp(24px,5vh,36px) auto 0;max-width:26em;font-family:var(--kai);
  font-size:clamp(15px,4.2vw,18px);line-height:2.1;letter-spacing:.08em;color:rgba(247,239,230,.88);
  text-shadow:0 2px 24px rgba(0,0,0,.6)}
.together{margin-top:clamp(28px,5vh,40px);display:inline-flex;align-items:baseline;gap:8px;
  padding:16px 26px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.025);flex-wrap:wrap;justify-content:center}
.together-label{font-family:var(--sans);font-size:10.5px;letter-spacing:.2em;color:var(--muted)}
.together strong{font-family:var(--serif);font-size:26px;color:var(--gold);letter-spacing:.04em}
.together-clock{font-family:ui-monospace,"SFMono-Regular",Menlo,monospace;font-size:12px;
  letter-spacing:.06em;color:rgba(240,205,150,.6);margin-left:6px}
.finale-actions{margin-top:clamp(30px,5vh,44px);display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ── 17. 章节导航 ──────────────────────────────────────────── */
.chapters{position:fixed;left:50%;bottom:calc(18px + env(safe-area-inset-bottom));z-index:21;
  display:flex;align-items:center;gap:9px;padding:11px 20px;border-radius:999px;
  background:rgba(11,7,20,.55);border:1px solid rgba(240,205,150,.12);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  opacity:0;transform:translate(-50%,10px);transition:opacity .8s var(--ease),transform .8s var(--ease);
  pointer-events:none}
.chapters.is-on{opacity:1;transform:translate(-50%,0);pointer-events:auto}
.chapters button{width:6px;height:6px;border-radius:999px;background:rgba(247,239,230,.26);
  transition:width .55s var(--ease),background .45s,box-shadow .45s;padding:0}
.chapters button:hover{background:rgba(247,239,230,.5)}
.chapters button.is-active{width:26px;background:linear-gradient(90deg,#ffb3c0,#e0577a);
  box-shadow:0 0 14px rgba(224,87,122,.7)}
.chapters button.is-locked{opacity:.28}
.sheet-list button.is-locked{opacity:.45}
.progress-line{position:fixed;inset:0 0 auto;height:2px;z-index:23;background:rgba(255,255,255,.05)}
.progress-line span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold),var(--rose));
  transition:width 1s var(--ease)}

/* ── 18. 形式面板 ──────────────────────────────────────────── */
.sheet{position:fixed;inset:0;z-index:30;display:flex;align-items:flex-end;justify-content:center;
  background:rgba(6,4,11,.6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  opacity:0;transition:opacity .45s var(--ease);padding:0}
.sheet.is-open{opacity:1}
.sheet[hidden]{display:none}
.sheet-panel{width:100%;max-width:560px;max-height:82vh;overflow-y:auto;overscroll-behavior:contain;
  background:linear-gradient(180deg,#150d22,#0c0715);border:1px solid rgba(240,205,150,.16);
  border-radius:22px 22px 0 0;padding:22px 22px calc(26px + env(safe-area-inset-bottom));
  transform:translateY(28px);transition:transform .6s var(--ease);scrollbar-width:none}
.sheet-panel::-webkit-scrollbar{display:none}
.sheet.is-open .sheet-panel{transform:none}
.sheet-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.sheet-head p{margin:0;font-family:var(--sans);font-size:11px;letter-spacing:.3em;color:var(--gold);opacity:.8}
.sheet-list{list-style:none;margin:0;padding:0}
.sheet-list li{border-top:1px solid rgba(247,239,230,.07)}
.sheet-list button{display:flex;align-items:baseline;gap:14px;width:100%;padding:13px 4px;text-align:left;
  transition:padding .4s var(--ease)}
.sheet-list button:hover{padding-left:10px}
.sl-num{font-family:var(--serif);font-size:11px;color:rgba(240,205,150,.55);width:18px;flex:none}
.sl-name{font-family:var(--serif);font-size:15px;letter-spacing:.1em;color:var(--cream);flex:none}
.sl-desc{font-family:var(--sans);font-size:10.5px;letter-spacing:.06em;color:rgba(247,239,230,.36);
  margin-left:auto;text-align:right}
.sheet-list button.is-current .sl-name{color:var(--rose)}
.sheet-list button.is-current .sl-num{color:var(--rose)}

/* ── 19. 大图查看 ──────────────────────────────────────────── */
.lightbox{position:fixed;inset:0;z-index:40;display:flex;align-items:center;justify-content:center;
  background:rgba(6,4,11,.95);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  opacity:0;transition:opacity .5s var(--ease);padding:70px 16px 90px}
.lightbox[hidden]{display:none}
.lightbox.is-open{opacity:1}
.lb-figure{margin:0;display:flex;flex-direction:column;align-items:center;gap:18px;max-height:100%}
.lb-figure img{max-height:min(66vh,640px);width:auto;max-width:min(92vw,520px);object-fit:contain;
  border:9px solid #f7f1e6;border-bottom-width:46px;box-shadow:0 40px 90px -30px rgba(0,0,0,.95);
  background:#f7f1e6;transform:scale(.94);transition:transform .6s var(--ease)}
.lightbox.is-open .lb-figure img{transform:none}
.lb-figure figcaption{font-family:var(--kai);font-size:14px;letter-spacing:.1em;color:var(--gold);
  text-align:center;max-width:30em;line-height:1.8;opacity:.9}
.lb-close,.lb-nav{position:absolute;display:grid;place-items:center;color:rgba(247,239,230,.7);
  border:1px solid rgba(247,239,230,.16);border-radius:50%;background:rgba(255,255,255,.03);
  transition:color .3s,border-color .3s,background .3s}
.lb-close{top:calc(20px + env(safe-area-inset-top));right:20px;width:42px;height:42px;font-size:15px;z-index:2}
.lb-nav{top:50%;translate:0 -50%;width:46px;height:46px;font-size:26px;line-height:1;padding-bottom:4px}
.lb-prev{left:14px}
.lb-next{right:14px}
.lb-close:hover,.lb-nav:hover{color:#fff;border-color:rgba(240,205,150,.5);background:rgba(224,87,122,.22)}
.lb-count{position:absolute;left:50%;bottom:calc(26px + env(safe-area-inset-bottom));translate:-50% 0;
  font-family:var(--sans);font-size:11px;letter-spacing:.28em;color:rgba(247,239,230,.4)}

/* ── 20. Toast ─────────────────────────────────────────────── */
.toast{position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom));z-index:50;
  padding:11px 20px;border-radius:999px;font-family:var(--sans);font-size:12px;letter-spacing:.1em;
  color:var(--cream);background:rgba(30,18,45,.94);border:1px solid rgba(240,205,150,.24);
  box-shadow:0 18px 40px -16px rgba(0,0,0,.9);opacity:0;transform:translate(-50%,8px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);pointer-events:none;white-space:nowrap;
  max-width:90vw;overflow:hidden;text-overflow:ellipsis}
.toast.is-on{opacity:1;transform:translate(-50%,0)}
body.gm-open .toast{top:calc(16px + env(safe-area-inset-top));bottom:auto}

/* ── 21. 庆祝粒子 ──────────────────────────────────────────── */
#canvas-celebrate.z-top{z-index:35}

/* ── 22. 响应式 ────────────────────────────────────────────── */
@media (max-width:900px){
  .arcade{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  :root{--pad-x:20px;--nav-h:72px}
  .car-stage{width:min(74vw,300px,36vh)}
  .car-btn{width:36px;height:36px}
  .car-prev{left:2px}
  .car-next{right:2px}
  .car-meta{min-height:104px}
  .arcade{grid-template-columns:repeat(2,1fr);gap:10px}
  .secrets{grid-template-columns:1fr;gap:12px;perspective:none}
  .flip{aspect-ratio:auto;min-height:98px;transform-style:flat}
  .flip.is-flipped{transform:none}
  .flip-face{position:relative;backface-visibility:visible;-webkit-backface-visibility:visible;padding:22px 20px}
  .flip-back{transform:none;display:none;box-shadow:none;border:1px solid rgba(240,205,150,.2)}
  .flip.is-flipped .flip-front{display:none}
  .flip.is-flipped .flip-back{display:flex;animation:fadeUp .5s var(--ease) both}
  .sl-desc{display:none}
  .stage{padding-top:calc(70px + env(safe-area-inset-top));padding-bottom:calc(var(--nav-h) + 46px)}
  .lightbox{padding:64px 10px 88px}
  .lb-figure img{max-height:60vh;border-width:7px;border-bottom-width:38px}
  .lb-nav{width:40px;height:40px;font-size:22px}
  .lb-prev{left:6px}.lb-next{right:6px}
  .together{padding:14px 20px;gap:6px}
  .together strong{font-size:22px}
}
@media (max-height:620px){
  .gate-title{font-size:clamp(24px,6.6vw,34px)}
  .gate-actions{margin-top:26px}
  .huge{font-size:clamp(40px,11vw,72px)}
}
/* 矮屏（iPhone SE 一类）：把轮播和标题再收一点，保证一屏看得完 */
@media (max-height:730px){
  .car-stage{width:min(62vw,250px,30vh)}
  .car-meta{margin-top:14px;min-height:78px}
  .car-cap{font-size:13px;min-height:2.6em}
  .car-foot{margin-top:10px}
  .stage-inner.center .display{margin-top:0}
  #s3 .sub{margin-top:12px}
  #s3 .display{font-size:clamp(23px,6.4vw,30px)}
}

/* ── 22b. 游乐场 ──────────────────────────────────────────── */
.stamps{display:flex;align-items:center;justify-content:center;gap:9px;margin:20px 0 2px;flex-wrap:wrap}
.stamp{width:24px;height:22px;display:grid;place-items:center;color:rgba(247,239,230,.15);
  transition:color .6s var(--ease),transform .6s var(--ease),filter .6s var(--ease)}
.stamp svg{width:22px;height:22px}
.stamp.is-on{color:var(--rose);filter:drop-shadow(0 0 10px rgba(224,87,122,.65));transform:scale(1.08)}
.stamp.is-on svg{animation:stampPop .55s var(--ease)}
@keyframes stampPop{0%{transform:scale(.4) rotate(-14deg)}60%{transform:scale(1.18) rotate(4deg)}100%{transform:none}}
.stamps-text{font-family:var(--sans);font-size:10px;letter-spacing:.2em;color:var(--faint);margin-left:6px}

.arcade{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:clamp(20px,4vh,32px);text-align:left}
.game-card{position:relative;display:flex;flex-direction:column;gap:8px;padding:17px 16px 15px;
  border-radius:14px;border:1px solid var(--line-soft);overflow:hidden;min-height:134px;text-align:left;
  background:linear-gradient(168deg,rgba(255,255,255,.055),rgba(255,255,255,.012));
  transition:transform .5s var(--ease),border-color .5s,background .5s}
.game-card:hover{transform:translateY(-4px);border-color:rgba(240,205,150,.42);
  background:linear-gradient(168deg,rgba(255,143,163,.13),rgba(255,255,255,.02))}
.gc-icon{width:24px;height:24px;color:var(--gold);opacity:.88}
.gc-name{font-family:var(--serif);font-size:16px;letter-spacing:.1em;color:var(--cream);margin-top:auto}
.gc-desc{font-family:var(--sans);font-size:10.5px;line-height:1.7;letter-spacing:.03em;
  color:rgba(247,239,230,.42)}
.gc-done{position:absolute;top:12px;right:12px;width:17px;height:17px;color:var(--rose);
  opacity:0;transform:scale(.5);transition:opacity .5s,transform .5s var(--ease)}
.game-card.is-done{border-color:rgba(255,143,163,.34)}
.game-card.is-done .gc-done{opacity:1;transform:none}
.game-card.is-done::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 80% at 100% 0,rgba(255,143,163,.16),transparent 62%)}

.arcade-unlock{margin-top:18px;animation:fadeUp .8s var(--ease) both}

/* 弹层 */
.gm{position:fixed;inset:0;z-index:38;display:flex;align-items:center;justify-content:center;padding:16px;
  background:rgba(6,4,11,.84);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  opacity:0;transition:opacity .35s var(--ease)}
.gm.is-open{opacity:1}
.gm-panel{width:min(430px,100%);max-height:min(92vh,780px);overflow-y:auto;scrollbar-width:none;
  background:linear-gradient(180deg,#170e26,#0b0714);border:1px solid rgba(240,205,150,.2);
  border-radius:22px;padding:16px 16px calc(18px + env(safe-area-inset-bottom));
  box-shadow:0 40px 90px -30px #000;transform:translateY(16px) scale(.98);
  transition:transform .45s var(--ease)}
.gm.is-open .gm-panel{transform:none}
.gm-panel::-webkit-scrollbar{display:none}
.gm-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:10px}
.gm-title{margin:0;font-family:var(--serif);font-size:17px;letter-spacing:.14em;color:var(--cream)}
.gm-body{font-family:var(--sans)}
.gm-lead{margin:0 0 14px;font-size:12.5px;line-height:1.95;letter-spacing:.05em;color:var(--muted)}
.gm-hint{margin:14px 0 0;font-size:11px;line-height:1.85;letter-spacing:.05em;color:rgba(247,239,230,.4)}
.gm-foot{margin-top:16px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.gm-foot .btn{padding:12px 22px;font-size:12px}
.gm-result{text-align:center;padding:8px 0 2px}
.gm-big{font-family:var(--serif);font-size:46px;letter-spacing:.06em;color:var(--gold);line-height:1.1}
.gm-big small{font-size:14px;color:var(--muted);letter-spacing:.2em}
.gm-line{margin:14px 0 0;font-family:var(--kai);font-size:14.5px;line-height:1.9;color:rgba(247,239,230,.82);
  letter-spacing:.05em;max-width:20em;margin-left:auto;margin-right:auto;text-wrap:balance}
.gm-sub{font-size:11px;letter-spacing:.16em;color:var(--faint);margin-top:10px}

/* 接爱心 */
.hud{display:flex;justify-content:space-between;align-items:baseline;font-size:10.5px;
  letter-spacing:.16em;color:rgba(247,239,230,.5);margin-bottom:10px}
.hud b{font-family:var(--serif);font-size:16px;color:var(--gold);font-weight:400;letter-spacing:.02em}
#cg-canvas{width:100%;height:auto;display:block;border-radius:14px;touch-action:none;
  background:radial-gradient(120% 90% at 50% 0%,#1e1129,#0a0613);
  border:1px solid rgba(240,205,150,.14)}

/* 记忆翻牌 */
.mem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}
.mem-card{position:relative;aspect-ratio:3/4;border-radius:7px;transform-style:preserve-3d;
  transition:transform .5s var(--ease),opacity .4s;padding:0;background:none}
.mem-card.is-open{transform:rotateY(180deg)}
.mem-face{position:absolute;inset:0;border-radius:7px;overflow:hidden;display:grid;place-items:center;
  backface-visibility:hidden;-webkit-backface-visibility:hidden}
.mem-back{background:linear-gradient(160deg,#261735,#150d22);border:1px solid rgba(240,205,150,.18);
  color:rgba(240,205,150,.42)}
.mem-back svg{width:15px;height:15px}
.mem-front{transform:rotateY(180deg);background:#f4e8d5}
.mem-front img{width:100%;height:100%;object-fit:cover}
.mem-card.is-matched .mem-front{box-shadow:inset 0 0 0 2px rgba(255,143,163,.75)}
.mem-card.is-matched{opacity:.6}
.mem-hud{display:flex;justify-content:space-between;font-size:10.5px;letter-spacing:.14em;
  color:rgba(247,239,230,.5);margin-bottom:12px}
.mem-cap{margin:12px 0 0;min-height:1.6em;text-align:center;font-family:var(--kai);font-size:12.5px;
  letter-spacing:.06em;color:var(--gold);opacity:0;transition:opacity .6s var(--ease)}
.mem-cap.in{opacity:.9}
.mem-hud b{color:var(--gold);font-family:var(--serif);font-size:14px;font-weight:400}
.turn-chip{display:inline-block;padding:3px 10px;border-radius:999px;font-size:10px;letter-spacing:.14em;
  border:1px solid rgba(247,239,230,.14);color:rgba(247,239,230,.55);background:rgba(255,255,255,.02);
  opacity:.55;transition:opacity .35s var(--ease),color .35s,border-color .35s,box-shadow .35s}
.turn-chip.is-turn{opacity:1;border-color:rgba(255,143,163,.55);color:#ffc4d0;
  background:rgba(224,87,122,.18);box-shadow:0 0 14px rgba(224,87,122,.35)}

/* 默契问答 */
.qz-top{display:flex;justify-content:space-between;font-size:10px;letter-spacing:.18em;
  color:rgba(247,239,230,.4);margin-bottom:14px}
.qz-q{font-family:var(--serif);font-size:16.5px;line-height:1.75;letter-spacing:.06em;color:var(--cream);
  margin:0 0 16px;min-height:3.2em}
.qz-opt{display:block;width:100%;text-align:left;padding:13px 15px;margin-bottom:9px;border-radius:11px;
  border:1px solid var(--line-soft);background:rgba(255,255,255,.03);color:rgba(247,239,230,.86);
  font-family:var(--sans);font-size:13px;line-height:1.6;letter-spacing:.04em;
  transition:border-color .35s,background .35s,opacity .35s,transform .35s var(--ease)}
.qz-opt:hover{border-color:rgba(240,205,150,.45);background:rgba(255,143,163,.1);transform:translateX(2px)}
.qz-opt.is-picked{border-color:rgba(255,143,163,.8);background:rgba(224,87,122,.22)}
.qz-opt.is-right{border-color:rgba(255,143,163,.75);background:rgba(224,87,122,.18)}
.qz-opt.is-wrong{opacity:.45}
.qz-row{padding:12px 0;border-bottom:1px solid rgba(247,239,230,.07)}
.qz-row-q{font-size:10.5px;line-height:1.6;letter-spacing:.05em;color:rgba(247,239,230,.42);margin-bottom:6px}
.qz-row-a{display:flex;align-items:baseline;gap:8px;font-size:12.5px;line-height:1.7}
.qz-row-a i{font-style:normal;flex:none;width:1.3em;color:rgba(247,239,230,.4);font-size:11px}
.qz-row-a b{font-weight:400;color:var(--cream);letter-spacing:.02em}
.qz-row-res{margin-left:auto;flex:none;font-size:10px;letter-spacing:.12em;white-space:nowrap}
.qz-row-res.ok{color:var(--rose)}
.qz-row-res.no{color:rgba(247,239,230,.28)}

/* 心动转盘 */
.wheel-wrap{position:relative;display:grid;place-items:center;padding:4px 0 0}
#wheel-canvas{width:100%;max-width:308px;height:auto;display:block}
.wheel-out{margin-top:14px;text-align:center;min-height:64px}
.wheel-out p{margin:0;font-family:var(--kai);font-size:17px;letter-spacing:.08em;color:#ffe9c4;
  opacity:0;transform:translateY(8px);transition:.6s var(--ease)}
.wheel-out p.in{opacity:1;transform:none}
.wheel-out small{display:block;margin-top:6px;font-family:var(--sans);font-size:10px;
  letter-spacing:.24em;color:var(--faint)}

/* 3D 相片 */
.p3d-intro{display:flex;flex-direction:column;gap:12px;align-items:center;padding:18px 0 6px}
.p3d-upload{position:relative;overflow:hidden}
.p3d-upload input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.p3d-picks{display:flex;gap:8px;justify-content:center;margin-top:4px;flex-wrap:wrap}
.p3d-pick{width:44px;height:58px;border-radius:4px;overflow:hidden;border:1px solid rgba(240,205,150,.3);
  padding:0;transition:transform .35s var(--ease),border-color .35s}
.p3d-pick img{width:100%;height:100%;object-fit:cover}
.p3d-pick:hover{transform:translateY(-3px);border-color:rgba(255,143,163,.6)}
.p3d-stage{position:relative;perspective:1000px;display:grid;place-items:center;
  height:min(52vh,430px);margin:6px 0 2px;touch-action:none;cursor:grab;overflow:hidden}
.p3d-stage:active{cursor:grabbing}
.p3d-bg{position:absolute;left:50%;top:50%;width:74%;aspect-ratio:1;translate:-50% -50%;border-radius:50%;
  background:radial-gradient(circle,rgba(255,143,163,.32),rgba(224,87,122,.12) 45%,transparent 70%);
  filter:blur(26px);pointer-events:none}
.p3d-card{position:relative;width:min(64vw,248px);aspect-ratio:3/4;transform-style:preserve-3d;
  will-change:transform;transition:transform .08s linear}
.p3d-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:5px;
  transform:translateZ(16px);background:#1a1024;
  box-shadow:0 30px 60px -26px rgba(0,0,0,.95),0 0 0 1px rgba(255,255,255,.08) inset}
.p3d-frame{position:absolute;inset:-13px;border:1px solid rgba(240,205,150,.5);border-radius:7px;
  transform:translateZ(42px);pointer-events:none;
  box-shadow:0 0 34px rgba(224,87,122,.22)}
.p3d-frame::before,.p3d-frame::after{content:"";position:absolute;width:12px;height:12px;
  border:1px solid rgba(255,214,222,.85)}
.p3d-frame::before{left:-1px;top:-1px;border-right:0;border-bottom:0}
.p3d-frame::after{right:-1px;bottom:-1px;border-left:0;border-top:0}
.p3d-sheen{position:absolute;inset:0;border-radius:5px;transform:translateZ(44px);pointer-events:none;
  background:linear-gradient(112deg,transparent 32%,rgba(255,255,255,.34) 48%,rgba(255,214,226,.18) 55%,transparent 66%);
  background-size:240% 240%;background-position:var(--sx,50%) var(--sy,50%);
  mix-blend-mode:screen;opacity:.9}
.p3d-cap{position:absolute;left:-8px;right:-8px;bottom:-44px;text-align:center;
  font-family:var(--kai);font-size:13px;letter-spacing:.14em;color:var(--gold);
  transform:translateZ(60px);text-shadow:0 2px 16px rgba(0,0,0,.7)}
.p3d-hint{position:absolute;left:0;right:0;top:8px;text-align:center;font-family:var(--sans);
  font-size:10px;letter-spacing:.22em;color:rgba(247,239,230,.4);pointer-events:none;
  transition:opacity .6s}
.p3d-hint.is-off{opacity:0}
.p3d-meta{text-align:center;font-family:var(--sans);font-size:10px;letter-spacing:.18em;
  color:rgba(247,239,230,.35);margin-top:46px}
.p3d-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:14px}

/* 真心话 */
.truth-card{position:relative;min-height:212px;border-radius:14px;padding:26px 22px;display:flex;
  flex-direction:column;justify-content:center;gap:12px;
  background:linear-gradient(160deg,#f9f0e1,#ecd9bd);color:#3f2c26;
  box-shadow:0 30px 60px -26px rgba(0,0,0,.95);animation:cardIn .6s var(--ease) both;overflow:hidden}
.truth-card::before{content:"";position:absolute;inset:10px;border:1px solid rgba(122,35,56,.16);
  border-radius:6px;pointer-events:none}
.truth-tag{font-family:var(--sans);font-size:9px;letter-spacing:.32em;color:#8a4a56}
.truth-q{margin:0;font-family:var(--kai);font-size:clamp(15px,4.2vw,17.5px);line-height:2;
  letter-spacing:.05em;color:#3a2721}
.truth-num{font-family:var(--serif);font-size:9.5px;letter-spacing:.2em;color:rgba(63,44,38,.45)}
@keyframes cardIn{from{opacity:0;transform:translateY(18px) rotate(-1.6deg) scale(.98)}
  to{opacity:1;transform:none}}

/* 转盘 · 分页与计划清单 */
.wheel-tabs{display:flex;justify-content:center;gap:8px;margin:2px 0 10px;flex-wrap:wrap}
.wheel-tab{padding:7px 16px;border-radius:999px;border:1px solid var(--line-soft);
  font-family:var(--sans);font-size:11px;letter-spacing:.14em;color:rgba(247,239,230,.55);
  transition:color .35s,border-color .35s,background .35s}
.wheel-tab:hover{color:var(--cream);border-color:var(--line)}
.wheel-tab.is-on{color:#ffd6df;border-color:rgba(255,143,163,.6);background:rgba(224,87,122,.18)}
.plan-wrap{margin-top:18px;padding-top:15px;border-top:1px solid rgba(247,239,230,.08);text-align:left}
.plan-title{margin:0 0 10px;font-family:var(--sans);font-size:10px;letter-spacing:.24em;
  color:var(--gold);opacity:.75}
.plan{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.plan-empty{margin:0;font-family:var(--sans);font-size:11px;letter-spacing:.04em;
  color:rgba(247,239,230,.3)}
.plan-item{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:10px;
  background:rgba(255,255,255,.03);border:1px solid rgba(247,239,230,.07)}
.plan-check{width:20px;height:20px;flex:none;border-radius:50%;border:1px solid rgba(240,205,150,.4);
  display:grid;place-items:center;color:#2a040f;transition:background .3s,border-color .3s}
.plan-check svg{width:12px;height:12px;opacity:0;transition:opacity .3s}
.plan-item.is-done .plan-check{background:linear-gradient(135deg,#ffb3c0,#e0577a);border-color:transparent}
.plan-item.is-done .plan-check svg{opacity:1}
.plan-text{flex:1;font-family:var(--sans);font-size:12.5px;color:rgba(247,239,230,.85);letter-spacing:.02em}
.plan-item.is-done .plan-text{color:rgba(247,239,230,.38);text-decoration:line-through}
.plan-del{flex:none;width:22px;height:22px;color:rgba(247,239,230,.26);font-size:15px;line-height:1;
  transition:color .3s}
.plan-del:hover{color:#ff9aa9}

/* 翻牌 · 难度 */
.lv-list{display:flex;flex-direction:column;gap:9px}
.lv{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:14px 16px;
  border-radius:12px;border:1px solid var(--line-soft);background:rgba(255,255,255,.03);
  transition:border-color .35s,background .35s,transform .35s var(--ease)}
.lv:hover{border-color:rgba(240,205,150,.45);background:rgba(255,143,163,.1);transform:translateX(2px)}
.lv b{font-family:var(--serif);font-size:15px;letter-spacing:.08em;color:var(--cream);font-weight:400}
.lv span{font-family:var(--sans);font-size:10.5px;letter-spacing:.1em;color:rgba(247,239,230,.4)}
.mem-grid-big{grid-template-columns:repeat(5,1fr);gap:6px}

/* 真心话 · 写下答案 */
.truth-write{margin-top:14px}
.truth-write textarea{width:100%;resize:none;padding:12px 14px;border-radius:10px;
  background:rgba(255,255,255,.04);border:1px solid var(--line-soft);color:var(--cream);
  font-family:var(--sans);font-size:12.5px;line-height:1.7;letter-spacing:.02em}
.truth-write textarea::placeholder{color:rgba(247,239,230,.26)}
.truth-write textarea:focus{outline:none;border-color:rgba(255,143,163,.5)}
.truth-write-foot{display:flex;align-items:center;justify-content:space-between;margin-top:9px}
.truth-count{font-family:var(--sans);font-size:10px;letter-spacing:.14em;color:rgba(247,239,230,.35)}

/* 3D 相片 · 页码点 */
.p3d-dots{position:absolute;bottom:12px;left:50%;translate:-50% 0;display:flex;gap:6px;z-index:3}
.p3d-dots i{width:5px;height:5px;border-radius:50%;background:rgba(247,239,230,.25)}
.p3d-dots i.is-on{background:#ff8fa3;box-shadow:0 0 10px rgba(224,87,122,.7)}

/* 隐藏页 */
.seal-row{display:flex;justify-content:center;gap:9px;margin:20px 0 6px;color:var(--rose)}
.seal-row svg{width:20px;height:20px;filter:drop-shadow(0 0 10px rgba(224,87,122,.6))}
.secret-letter{margin:clamp(18px,3.6vh,30px) auto 0;max-width:23em;text-align:left}
.secret-letter p{margin:0 0 1.05em;font-family:var(--kai);font-size:clamp(14.5px,4vw,17px);
  line-height:2.15;letter-spacing:.06em;color:rgba(247,239,230,.88)}
.secret-letter p:last-child{color:#ffe6b8;text-shadow:0 0 30px rgba(240,205,150,.3)}
.secret-entry{margin-top:16px}

/* ── 22c. 浪漫升级包 ──────────────────────────────────────── */
/* 序 · 时间问候 */
.gate-moment{margin:14px 0 0;font-family:var(--sans);font-size:11.5px;letter-spacing:.2em;
  color:rgba(240,205,150,.66);text-shadow:0 1px 16px rgba(0,0,0,.7)}

/* 星河 · 许愿 */
.wish-line{margin:16px 0 0;min-height:1.7em;font-family:var(--kai);font-size:14px;
  letter-spacing:.12em;color:#ffe6b8;opacity:0;transform:translateY(6px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  text-shadow:0 0 26px rgba(240,205,150,.45)}
.wish-line.in{opacity:.95;transform:none}
.shooting{position:fixed;width:118px;height:2px;z-index:45;pointer-events:none;border-radius:2px;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,248,236,.95));
  transform-origin:0 50%;rotate:-34deg;
  animation:shoot .95s ease-out forwards}
@keyframes shoot{
  0%{opacity:0;translate:0 0;scale:.3 1}
  22%{opacity:1}
  100%{opacity:0;translate:190px 126px;scale:1 1}}

/* 情书 · P.S. 与回信 */
.letter-ps{margin:20px 0 0;padding-top:16px;border-top:1px dashed rgba(122,35,56,.28);
  font-family:var(--kai);font-size:13.5px;line-height:1.95;letter-spacing:.04em;color:#8a3a4a;
  opacity:0;transform:translateY(8px);transition:opacity 1.1s var(--ease),transform 1.1s var(--ease)}
.letter-ps.in{opacity:.95;transform:none}
.reply{width:min(560px,92vw);margin:18px auto 0;text-align:center}
#reply-form{display:flex;gap:8px}
#reply-form input{flex:1;min-width:0;padding:11px 18px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-soft);color:var(--cream);
  font-family:var(--sans);font-size:12.5px;letter-spacing:.04em}
#reply-form input::placeholder{color:rgba(247,239,230,.28)}
.reply-saved{margin:0 0 8px;font-family:var(--sans);font-size:11px;letter-spacing:.2em;color:var(--gold);opacity:.85}
.reply-text{margin:0;font-family:var(--kai);font-size:15px;line-height:1.9;letter-spacing:.06em;
  color:#ffe6b8;text-shadow:0 0 24px rgba(240,205,150,.3)}
.reply-again{margin-top:12px;font-family:var(--sans);font-size:10.5px;letter-spacing:.16em;
  color:var(--faint);border-bottom:1px dotted rgba(247,239,230,.28);padding-bottom:2px}
.reply-again:hover{color:var(--cream)}

/* 八秒 · 播放次数 */
.watch-count{margin:10px 0 0;min-height:1.4em;font-family:var(--sans);font-size:10.5px;
  letter-spacing:.24em;color:rgba(240,205,150,.55);opacity:0;transition:opacity .8s}
.watch-count.in{opacity:1}

/* 此刻 · 滤镜 */
.cam-filters{display:flex;align-items:center;justify-content:center;gap:7px;flex-wrap:wrap;
  margin-top:2px}
.cf-label{font-family:var(--sans);font-size:9.5px;letter-spacing:.2em;color:rgba(247,239,230,.32)}
.cf{padding:6px 13px;border-radius:999px;border:1px solid var(--line-soft);font-family:var(--sans);
  font-size:10.5px;letter-spacing:.1em;color:rgba(247,239,230,.5);
  transition:color .35s,border-color .35s,background .35s}
.cf:hover{color:var(--cream);border-color:var(--line)}
.cf.is-on{color:#ffd6df;border-color:rgba(255,143,163,.65);background:rgba(224,87,122,.16)}

/* 以后 · 自己加一条 */
.wish-own{margin-top:34px;padding-top:22px;border-top:1px solid var(--line-soft);text-align:left}
.wish-own-title{margin:0;font-family:var(--kai);font-size:13px;letter-spacing:.1em;color:var(--gold);opacity:.8}
.wish-add{display:flex;gap:8px;margin-top:12px}
.wish-add input{flex:1;min-width:0;padding:11px 18px;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--line-soft);color:var(--cream);
  font-family:var(--sans);font-size:12.5px}
.wish-add input::placeholder{color:rgba(247,239,230,.26)}
.wish-mine{margin-top:14px}
.wish.is-mine .wish-idx{color:var(--rose);opacity:.9}

/* 秘密 · 第四张 */
.secret4{grid-column:1/-1;margin-top:4px;padding:24px 22px;border-radius:8px;
  background:linear-gradient(160deg,#f9f1e3,#ecd9bd);border:1px solid rgba(240,205,150,.35);
  text-align:left;opacity:0;transform:translateY(18px) rotate(-1deg);
  transition:opacity .9s var(--ease),transform .9s var(--ease);
  box-shadow:0 30px 60px -28px rgba(0,0,0,.95)}
.secret4.is-in{opacity:1;transform:none}
.secret4 .flip-tag{color:#8a4a56;opacity:.8}
.secret4 p{margin:10px 0 0;font-family:var(--kai);font-size:clamp(13px,3.6vw,15px);
  line-height:2;letter-spacing:.04em;color:#3f2c26;white-space:pre-line}

/* 表白 · 第三句话 */
.confess-extra{margin-top:16px;font-family:var(--sans);font-size:10.5px;letter-spacing:.18em;
  color:rgba(247,239,230,.4);border-bottom:1px dotted rgba(247,239,230,.25);padding-bottom:3px}
.confess-extra:hover{color:var(--cream)}
.confess-whisper{margin:18px auto 0;max-width:22em;font-family:var(--kai);font-size:14px;
  line-height:1.95;letter-spacing:.06em;color:#ffe6c4;animation:fadeUp .9s var(--ease) both}

/* 惊喜礼盒 */
.gift-btn{position:relative;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  color:var(--gold);background:rgba(255,255,255,.03);border:1px solid rgba(240,205,150,.22);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);margin-right:8px;
  transition:background .4s,border-color .4s,transform .4s var(--ease)}
.gift-btn svg{width:19px;height:19px}
.gift-btn:hover{background:rgba(224,87,122,.22);border-color:rgba(255,143,163,.5);transform:translateY(-1px)}
.gift-ring{position:absolute;inset:0;border-radius:50%;border:1px solid rgba(240,205,150,.45);
  animation:ring 3.6s var(--ease-soft) infinite;pointer-events:none}
.gift-panel{position:fixed;inset:0;z-index:44;display:grid;place-items:center;padding:22px;
  background:rgba(6,4,11,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  opacity:0;transition:opacity .35s var(--ease)}
.gift-panel.is-open{opacity:1}
.gift-box{width:min(360px,92vw);text-align:center}
.gift-eyebrow{margin:0 0 16px;font-family:var(--sans);font-size:10px;letter-spacing:.3em;
  color:var(--gold);opacity:.75}
.gift-card{position:relative;min-height:210px;padding:30px 24px;border-radius:8px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:linear-gradient(160deg,#faf2e4,#ecd9bd);color:#3f2c26;
  box-shadow:0 34px 70px -28px #000}
.gift-card::before{content:"";position:absolute;inset:10px;border:1px solid rgba(122,35,56,.16);
  border-radius:5px;pointer-events:none}
.gift-card.flip-in{animation:cardIn .6s var(--ease) both}
.gift-tag{font-family:var(--sans);font-size:9px;letter-spacing:.32em;color:#8a4a56}
.gift-text{margin:0;font-family:var(--kai);font-size:17px;line-height:1.9;letter-spacing:.05em;color:#3a2721}
.gift-note{font-family:var(--sans);font-size:10px;letter-spacing:.14em;color:rgba(63,44,38,.5)}
.gift-photo:empty{display:none}
.gift-photo img{width:100%;max-height:150px;object-fit:cover;border-radius:3px}
.gift-count{margin:14px 0 0;font-family:var(--sans);font-size:10px;letter-spacing:.2em;
  color:rgba(247,239,230,.35)}
.gift-actions{margin-top:18px;display:flex;align-items:center;justify-content:center;gap:12px}

/* 心动证书 */
.cert-layer{position:fixed;inset:0;z-index:46;display:grid;place-items:center;padding:20px;
  background:rgba(6,4,11,.93);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  overflow-y:auto;animation:fadeUp .4s var(--ease) both}
.cert-box{width:min(400px,92vw);text-align:center;padding:8px 0 20px}
.cert-img{width:100%;max-height:66vh;object-fit:contain;border-radius:4px;
  box-shadow:0 34px 70px -30px #000}
.cert-actions{display:flex;gap:10px;justify-content:center;margin-top:16px;flex-wrap:wrap}
.cert-tip{margin:12px 0 0;font-family:var(--sans);font-size:10px;letter-spacing:.18em;
  color:rgba(247,239,230,.3)}

/* ── 特别 · 一万颗心 ──────────────────────────────────────── */
#sh{padding:0;display:block;overflow:hidden;background:#06030a}
.heart-canvas{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:block;touch-action:none}
.heart-inner{position:relative;z-index:2;min-height:100%;display:flex;flex-direction:column;
  align-items:center;justify-content:space-between;text-align:center;pointer-events:none;
  padding:calc(84px + env(safe-area-inset-top)) 22px calc(114px + env(safe-area-inset-bottom))}
.heart-title{margin:8px 0 0;font-family:var(--serif);font-weight:400;
  font-size:clamp(15px,4vw,20px);letter-spacing:.18em;color:rgba(247,239,230,.4)}
.heart-hint{margin:0 0 12px;font-family:var(--sans);font-size:10px;letter-spacing:.24em;
  color:rgba(247,239,230,.28)}
.heart-palette{pointer-events:auto;padding:8px 18px;border-radius:999px;
  border:1px solid rgba(240,205,150,.26);background:rgba(255,255,255,.03);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  font-family:var(--sans);font-size:10.5px;letter-spacing:.18em;color:rgba(247,239,230,.6);
  transition:color .35s,border-color .35s,background .35s}
.heart-palette:hover{color:var(--cream);border-color:rgba(255,143,163,.55);background:rgba(224,87,122,.14)}

/* ── 特别 · 粒子花（指尖） ───────────────────────────────── */
#pf{padding:0;display:block;overflow:hidden;background:#050408}
.pf-canvas{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:block;touch-action:none}
.pf-inner{position:relative;z-index:2;min-height:100%;max-width:none;margin:0;display:flex;align-items:center;
  padding:calc(84px + env(safe-area-inset-top)) 7vw calc(96px + env(safe-area-inset-bottom));
  pointer-events:none}
.pf-copy{max-width:min(34vw,400px);text-align:left}
.pf-title{margin:14px 0 0;font-family:var(--serif);font-weight:400;
  font-size:clamp(30px,4.4vw,58px);line-height:1.3;letter-spacing:.04em;
  color:rgba(250,246,240,.96);text-shadow:0 0 40px rgba(255,190,225,.25);
  animation:rise 2s cubic-bezier(.16,1,.3,1) both}
.pf-sub{margin:20px 0 0;font-family:var(--kai);font-size:clamp(12px,1.15vw,15px);
  line-height:2;letter-spacing:.1em;color:rgba(240,232,238,.5)}
.pf-labels{display:flex;gap:30px;margin-top:26px;font-family:var(--sans);
  font-size:10px;letter-spacing:.2em;color:rgba(240,232,238,.3)}
.pf-labels span::before{content:"·";margin-right:8px;opacity:.6}
.pf-actions{display:flex;gap:10px;margin-top:20px;pointer-events:auto}
.pf-variety{margin-top:14px;display:flex;flex-direction:column;gap:8px;pointer-events:auto}
.pf-vrow{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.pf-vlabel{font-size:9.5px;letter-spacing:.24em;color:rgba(240,232,238,.28);margin-right:4px}
.pf-chip{padding:5px 11px;border-radius:999px;font-size:10.5px;letter-spacing:.06em;
  border:1px solid rgba(255,190,210,.16);background:rgba(255,255,255,.03);
  color:rgba(255,235,240,.55);cursor:pointer;transition:.28s;font-family:var(--sans)}
.pf-chip:hover{color:#fff;border-color:rgba(255,170,190,.45)}
.pf-chip.is-on{background:linear-gradient(135deg,rgba(255,160,190,.26),rgba(190,150,255,.22));
  border-color:rgba(255,180,200,.55);color:#fff}
.pf-meter{width:min(38vw,220px);height:2px;margin-top:14px;border-radius:2px;
  background:rgba(255,255,255,.08);overflow:hidden}
.pf-meter i{display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,#ffc0dd,#d8c0ff,#ffe0c0);transition:transform .1s linear}
.pf-cam{position:fixed;right:16px;bottom:calc(104px + env(safe-area-inset-bottom));
  width:72px;height:72px;border-radius:50%;overflow:hidden;z-index:6;background:#0a0710;
  border:1px solid rgba(255,200,230,.45);
  box-shadow:0 0 20px rgba(220,150,255,.3),inset 0 0 16px rgba(0,0,0,.4)}
.pf-cam video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}

@media (max-width:820px){
  .pf-inner{align-items:stretch;flex-direction:column;text-align:center;
    padding:calc(66px + env(safe-area-inset-top)) 18px calc(84px + env(safe-area-inset-bottom))}
  .pf-copy{max-width:100%;flex:1;display:flex;flex-direction:column;align-items:center;text-align:center}
  .pf-title{font-size:clamp(24px,7.2vw,30px);line-height:1.22;margin-top:6px}
  .pf-sub{display:none}
  .pf-labels{display:none}
  .pf-actions{justify-content:center;margin-top:auto}
  .pf-meter{margin:10px auto 0;width:min(56vw,240px)}
  .pf-actions .btn{padding:9px 18px;font-size:12.5px}
}
/* ── 特别 · 粒子圣诞树 ────────────────────────────────────── */
#st{padding:0;display:block;overflow:hidden;background:#070a14}
.tree-canvas{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:block;touch-action:none}
.tree-inner{position:relative;z-index:2;min-height:100%;display:flex;flex-direction:column;
  align-items:center;justify-content:space-between;pointer-events:none;text-align:center;
  padding:calc(80px + env(safe-area-inset-top)) 22px calc(104px + env(safe-area-inset-bottom))}
.tree-title{margin:8px 0 0;font-family:var(--serif);font-weight:400;
  font-size:clamp(16px,4.4vw,22px);letter-spacing:.16em;color:rgba(247,239,230,.45)}
.tree-hint{margin:0;font-family:var(--sans);font-size:10px;letter-spacing:.24em;
  color:rgba(247,239,230,.32)}
.tree-wish{margin:12px 0 0;font-family:var(--kai);font-size:clamp(14px,4vw,17px);
  letter-spacing:.1em;color:#ffe6b8;text-shadow:0 0 26px rgba(240,205,150,.4);
  animation:fadeUp .9s var(--ease) both}
.tree-go{margin:14px auto 0;pointer-events:auto;
  animation:fadeUp 1.1s var(--ease) .2s both}
.tree-bottom{display:flex;flex-direction:column;align-items:center;width:100%}
.tree-cam{position:fixed;left:18px;top:calc(78px + env(safe-area-inset-top));width:84px;height:84px;
  border-radius:50%;overflow:hidden;z-index:6;background:#0a0d15;
  border:1px solid rgba(255,214,170,.55);
  box-shadow:0 0 22px rgba(224,120,140,.35),inset 0 0 20px rgba(0,0,0,.45)}
.tree-cam video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
.cam-live{position:absolute;right:9px;top:9px;width:7px;height:7px;border-radius:50%;
  background:#ff6b81;box-shadow:0 0 8px #ff6b81;animation:camLive 1.6s ease-in-out infinite}
@keyframes camLive{0%,100%{opacity:.35}50%{opacity:1}}
.cam-meter{position:absolute;left:10px;right:10px;bottom:8px;height:2px;border-radius:2px;
  background:rgba(255,255,255,.12);overflow:hidden}
.cam-meter i{display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,#ffd9a8,#ff8fa3);transition:transform .12s linear}
.tree-cam-btn{margin-top:12px;pointer-events:auto;padding:10px 20px;border-radius:999px;
  border:1px solid rgba(255,180,150,.35);background:rgba(255,140,120,.1);
  font-family:var(--sans);font-size:10.5px;letter-spacing:.16em;color:#ffd9c9;
  transition:background .35s,border-color .35s,color .35s}
.tree-cam-btn:hover{background:rgba(255,140,120,.2);border-color:rgba(255,180,150,.62);color:#fff1e8}
.tree-actions{display:flex;gap:10px;align-items:center;justify-content:center;flex-wrap:wrap;margin-top:12px}
.tree-upload-btn{pointer-events:auto;padding:10px 18px;border-radius:999px;
  border:1px solid rgba(240,205,150,.3);background:rgba(255,255,255,.03);
  font-family:var(--sans);font-size:10.5px;letter-spacing:.16em;color:rgba(247,239,230,.62);
  transition:background .35s,border-color .35s,color .35s}
.tree-upload-btn:hover{color:var(--cream);border-color:rgba(255,180,150,.62);background:rgba(255,140,120,.14)}
.tree-cam.is-hot{border-color:rgba(255,214,170,1);
  box-shadow:0 0 34px rgba(255,170,140,.75),inset 0 0 26px rgba(0,0,0,.4);
  transition:box-shadow .2s}


.orn-modal{position:fixed;inset:0;z-index:47;display:grid;place-items:center;padding:24px;
  background:rgba(6,4,11,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  animation:fade .35s var(--ease) both}
.orn-card{margin:0;width:min(340px,88vw);padding:12px 12px 20px;border-radius:6px;
  background:linear-gradient(170deg,#fdf7ec,#efe0c9);text-align:center;
  box-shadow:0 40px 80px -30px #000;animation:cardIn .5s var(--ease) both}
.orn-card img{width:100%;max-height:52vh;object-fit:cover;border-radius:3px;display:block}
.orn-card figcaption{margin:14px 6px 0;font-family:var(--kai);font-size:14px;line-height:1.9;
  letter-spacing:.05em;color:#43302b}
.orn-close{display:block;margin:16px auto 0;padding:9px 22px;border-radius:999px;
  border:1px solid rgba(122,35,56,.25);background:rgba(255,255,255,.4);
  font-family:var(--sans);font-size:11px;letter-spacing:.18em;color:#7a2338}


/* ── 手势摄像头小窗（各粒子幕共用）────────────────────────── */
.gs-cam{position:fixed;right:16px;bottom:calc(96px + env(safe-area-inset-bottom));
  width:116px;height:116px;border-radius:50%;overflow:hidden;z-index:40;
  background:#0a0710;border:1px solid rgba(255,200,220,.3);
  box-shadow:0 0 24px rgba(220,120,180,.25),inset 0 0 20px rgba(0,0,0,.5);
  transition:box-shadow .3s,border-color .3s}
.gs-cam video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
.gs-cam.is-hot{border-color:rgba(255,190,150,.95);
  box-shadow:0 0 38px rgba(255,150,120,.7),inset 0 0 20px rgba(0,0,0,.35)}
.gs-ring{position:absolute;inset:5px;border-radius:50%;border:1px solid rgba(255,255,255,.12)}
.gs-meter{position:absolute;left:13px;right:13px;bottom:11px;height:3px;border-radius:3px;
  background:rgba(255,255,255,.16);overflow:hidden}
.gs-meter i{display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,#ffe0b0,#ff8fa3);transition:transform .1s linear}
.gs-num{position:absolute;inset:0;display:grid;place-items:center;font-size:34px;
  font-weight:700;color:#fff;opacity:0;transform:scale(.6);transition:.25s;
  text-shadow:0 0 18px rgba(255,150,120,.95);pointer-events:none}
.gs-num.on{opacity:1;transform:scale(1)}
.gs-zone{position:absolute;left:50%;top:50%;width:58%;height:58%;translate:-50% -50%;
  border-radius:50%;border:1.5px dashed rgba(255,255,255,.28);
  transition:border-color .25s,box-shadow .25s;
  background:conic-gradient(rgba(255,210,170,.28) calc(var(--p,0)*360deg), transparent 0);
  mask:radial-gradient(circle, transparent 62%, #000 63%);
  -webkit-mask:radial-gradient(circle, transparent 62%, #000 63%)}
.gs-cam.armed .gs-zone{border-color:rgba(255,206,150,.95);border-style:solid;
  box-shadow:0 0 18px rgba(255,180,120,.75),inset 0 0 18px rgba(255,170,120,.35)}
.gs-state{position:absolute;left:0;right:0;top:6px;text-align:center;font-size:8.5px;
  letter-spacing:.16em;color:rgba(255,225,218,.55);pointer-events:none}
.gs-cam.armed .gs-state{color:#ffe1c2}
.gs-off{position:absolute;inset:0;display:grid;place-items:center;font-size:9px;
  letter-spacing:.2em;color:rgba(255,225,218,.5);background:rgba(10,7,16,.72)}
.gs-cam:not(.is-off) .gs-off{display:none}
.gs-btn{position:fixed;right:16px;bottom:calc(34px + env(safe-area-inset-bottom));
  z-index:40;height:28px;padding:0 14px;border-radius:999px;font-family:var(--sans);
  font-size:10px;letter-spacing:.14em;border:1px solid rgba(255,190,210,.26);
  background:rgba(255,255,255,.04);color:rgba(255,235,235,.75);transition:.3s}
.gs-btn:hover{color:#fff;border-color:rgba(255,170,190,.6);background:rgba(255,150,170,.14)}
.gs-cam,.gs-btn{display:none}
body.gs-on .gs-cam,body.gs-on .gs-btn{display:flex}
@media (max-width:520px){
  .gs-cam{width:98px;height:98px;right:12px}
  .gs-btn{right:12px;font-size:9.5px;padding:0 12px}
}

/* ── 生日 · Three.js 粒子流程 ─────────────────────────────── */
#bd{padding:0;display:block;overflow:hidden;background:#050409}
.bd3{position:fixed;inset:0}
.bd3-bg{position:absolute;inset:0;
  background:radial-gradient(70% 60% at 50% 44%,rgba(255,140,160,.12),transparent 62%),
    radial-gradient(90% 80% at 50% 110%,rgba(130,90,200,.14),transparent 60%),#050409}
.bd3-canvas{position:absolute;inset:0}
.bd3-canvas canvas{display:block;width:100%;height:100%}
.bd3-photo{position:absolute;left:0;top:0;border-radius:50%;overflow:hidden;
  border:2px solid rgba(255,216,176,.85);
  box-shadow:0 0 18px rgba(255,170,130,.35),0 6px 24px rgba(0,0,0,.35);
  transform-origin:50% 50%;will-change:transform,width,height;pointer-events:none;
  background:#140d16;transition:border-color .3s,box-shadow .3s}
.bd3-photo img{width:100%;height:100%;object-fit:cover;display:block}
.bd3-photo.is-focus{border-color:rgba(255,240,210,1);
  box-shadow:0 0 34px rgba(255,190,140,.8),0 8px 30px rgba(0,0,0,.4)}
.bd3-steps{position:absolute;left:50%;top:calc(74px + env(safe-area-inset-top));
  translate:-50% 0;text-align:center;pointer-events:none;width:min(90vw,600px);z-index:3}
.bd3-dots{display:flex;gap:7px;justify-content:center;margin-bottom:9px}
.bd3-dots i{width:6px;height:6px;border-radius:50%;background:rgba(255,220,215,.2);transition:.35s}
.bd3-dots i.on{background:linear-gradient(135deg,#ffd3c4,#ff8fa3);
  box-shadow:0 0 10px rgba(255,140,150,.85);transform:scale(1.35)}
.bd3-dots i.done{background:rgba(255,190,180,.5)}
.bd3-hint{font-family:var(--serif);font-size:clamp(14px,2.6vw,19px);letter-spacing:.14em;
  color:rgba(255,238,232,.86);text-shadow:0 2px 20px rgba(0,0,0,.85)}
.bd3-hint small{display:block;margin-top:6px;font-family:var(--sans);font-size:10px;
  letter-spacing:.24em;color:rgba(255,225,218,.4)}
.bd3-cam{position:absolute;right:16px;bottom:calc(136px + env(safe-area-inset-bottom));
  width:128px;height:128px;border-radius:50%;overflow:hidden;background:#0a0710;
  border:1px solid rgba(255,200,220,.32);z-index:4;
  box-shadow:0 0 26px rgba(220,120,180,.28),inset 0 0 22px rgba(0,0,0,.5);
  transition:box-shadow .3s,border-color .3s}
.bd3-cam video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
.bd3-cam.is-hot{border-color:rgba(255,190,150,.95);
  box-shadow:0 0 40px rgba(255,150,120,.75),inset 0 0 22px rgba(0,0,0,.35)}
.bd3-ring{position:absolute;inset:5px;border-radius:50%;border:1px solid rgba(255,255,255,.12)}
.bd3-meter{position:absolute;left:14px;right:14px;bottom:12px;height:3px;border-radius:3px;
  background:rgba(255,255,255,.16);overflow:hidden}
.bd3-meter i{display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,#ffe0b0,#ff8fa3);transition:transform .1s linear}
.bd3-off{position:absolute;inset:0;display:grid;place-items:center;text-align:center;line-height:1.9;
  font-size:9.5px;letter-spacing:.18em;color:rgba(255,225,218,.5);background:rgba(10,7,16,.72)}
.bd3-cam:not(.is-off) .bd3-off{display:none}
.bd3-cambtn{position:absolute;right:16px;bottom:calc(92px + env(safe-area-inset-bottom));
  z-index:4;height:30px;padding:0 16px;border-radius:999px;font-family:var(--sans);
  font-size:10.5px;letter-spacing:.14em;border:1px solid rgba(255,190,210,.26);
  background:rgba(255,255,255,.04);color:rgba(255,235,235,.75);transition:.3s}
.bd3-cambtn:hover{color:#fff;border-color:rgba(255,170,190,.6);background:rgba(255,150,170,.14)}
.bd3-cam,.bd3-cambtn{display:none}
.bd3-nums{position:absolute;left:50%;bottom:calc(96px + env(safe-area-inset-bottom));translate:-50% 0;display:flex;gap:8px;z-index:4}
.bd3-nums button{width:34px;height:34px;border-radius:50%;font-family:var(--sans);font-size:13px;
  border:1px solid rgba(255,190,210,.28);background:rgba(255,255,255,.05);color:rgba(255,235,235,.75);transition:.25s}
.bd3-nums button:hover{color:#fff;border-color:rgba(255,170,190,.7);background:rgba(255,150,170,.18)}
.bd3-tip{position:absolute;left:0;right:0;bottom:calc(62px + env(safe-area-inset-bottom));
  text-align:center;pointer-events:none;font-family:var(--sans);font-size:9.5px;
  letter-spacing:.3em;color:rgba(255,230,225,.2)}
@media (max-width:520px){
  .bd3-cam{width:104px;height:104px;right:12px}
  .bd3-cambtn{right:12px;font-size:10px;padding:0 13px}
}
/* ── 特别 · 生日快乐（粒子花） ───────────────────────────── */
#bd{padding:0;display:block;overflow:hidden;background:#05040a}
.bd-frame{position:fixed;inset:0;width:100%;height:100%;border:0;display:block;z-index:1;background:#05040a}
.bd-sky,.bd-canvas{position:fixed;inset:0;width:100%;height:100%;display:block}
.bd-sky{z-index:0}
.bd-canvas{z-index:1;touch-action:none}
.bd-inner{position:relative;z-index:2;min-height:100%;display:flex;flex-direction:column;
  align-items:center;justify-content:space-between;pointer-events:none;text-align:center;
  padding:calc(72px + env(safe-area-inset-top)) 20px calc(88px + env(safe-area-inset-bottom))}
.bd-sub{margin:12px 0 0;font-family:var(--kai);font-size:clamp(12px,3.4vw,15px);
  letter-spacing:.3em;text-indent:.3em;color:rgba(247,239,230,.46);transition:opacity .6s}
.bd-bottom{display:flex;flex-direction:column;align-items:center;width:100%}
.bd-hint{margin:0 0 10px;font-family:var(--sans);font-size:10px;letter-spacing:.22em;
  color:rgba(240,225,225,.34)}

/* 蛋糕：花开到一定程度才亮起来 */
.bd-cake{position:relative;width:min(46vw,170px);height:150px;cursor:pointer;
  pointer-events:none;margin-bottom:2px;
  opacity:0;transform:translateY(16px) scale(.9);
  transition:opacity .9s var(--ease),transform .9s var(--ease),filter .6s}
.bd-cake.is-on{opacity:1;transform:none;pointer-events:auto}
.bd-cake.is-dark{filter:brightness(.72) saturate(.85)}
.cake-glow{position:absolute;left:50%;top:34%;translate:-50% -50%;width:150%;height:90%;
  border-radius:50%;pointer-events:none;filter:blur(18px);
  background:radial-gradient(ellipse at 50% 50%,rgba(255,170,215,.45),rgba(200,140,255,.14) 55%,transparent 72%);
  animation:cakeGlow 3.4s ease-in-out infinite}
@keyframes cakeGlow{0%,100%{opacity:.6}50%{opacity:1}}
.cake-plate{position:absolute;left:0;bottom:0;width:100%;height:14px;border-radius:50%;
  background:linear-gradient(180deg,#33243a,#17101d);
  box-shadow:0 10px 26px -8px rgba(0,0,0,.9)}
.cake-tier{position:absolute;left:50%;translate:-50% 0;border-radius:7px 7px 10px 10px;
  box-shadow:inset 0 -10px 18px rgba(120,60,90,.25),inset 0 6px 12px rgba(255,255,255,.3)}
.cake-tier.t1{bottom:9px;width:86%;height:54px;
  background:linear-gradient(180deg,#ffd9e6,#f6b8cf 60%,#e09ab8)}
.cake-tier.t2{bottom:56px;width:62%;height:46px;
  background:linear-gradient(180deg,#ffe4ef,#ffc6dd 60%,#f0a8c8)}
.cake-drip{position:absolute;left:0;right:0;top:-7px;height:14px;
  background:radial-gradient(circle at 9px 0,#fff0f7 7.5px,transparent 8px) 0 0/24px 14px repeat-x;
  filter:drop-shadow(0 2px 2px rgba(150,90,120,.25))}
.cake-candles{position:absolute;left:50%;translate:-50% 0;bottom:96px;
  display:flex;gap:22px;align-items:flex-end}
.candle{position:relative;width:6px;height:26px;border-radius:3px;
  background:repeating-linear-gradient(135deg,#ff8fb8 0 4px,#fff3fa 4px 8px);
  box-shadow:0 0 10px rgba(255,150,200,.35)}
.flame{position:absolute;left:50%;bottom:100%;translate:-50% 4px;width:12px;height:16px;
  border-radius:50% 50% 46% 46%;
  background:radial-gradient(circle at 50% 68%,#fff6d8 0%,#ffd166 42%,#ff8b3d 72%,rgba(255,120,50,0) 82%);
  filter:blur(.6px) drop-shadow(0 0 10px rgba(255,170,90,.9));
  transform-origin:50% 100%;animation:flameFlicker 1.1s ease-in-out infinite}
@keyframes flameFlicker{
  0%,100%{transform:translate(-50%,4px) scale(1,1) rotate(-2deg)}
  35%{transform:translate(-50%,4px) scale(1.08,.92) rotate(3deg)}
  70%{transform:translate(-50%,4px) scale(.94,1.1) rotate(-3deg)}}
.candle.is-out .flame{opacity:0;transform:translate(-50%,4px) scale(.2,.2);transition:.5s}
.cake-smoke{position:absolute;left:50%;bottom:100%;width:9px;height:9px;border-radius:50%;
  translate:-50% 0;background:rgba(230,225,235,.5);filter:blur(3px);
  animation:smokeUp 1.5s ease-out forwards}
@keyframes smokeUp{
  0%{opacity:.7;transform:translate(-50%,0) scale(.6)}
  100%{opacity:0;transform:translate(-50%,-54px) scale(2.3)}}

.bd-wish{margin:16px 0 0;font-family:var(--kai);font-size:clamp(14px,4vw,18px);
  letter-spacing:.12em;color:#ffe6c4;text-shadow:0 0 28px rgba(255,190,120,.5);
  animation:fadeUp .9s var(--ease) both}
.bd-actions{display:flex;gap:10px;align-items:center;justify-content:center;margin-top:12px;flex-wrap:wrap}
.bd-cam-btn{pointer-events:auto;padding:10px 18px;border-radius:999px;
  border:1px solid rgba(220,170,255,.32);background:rgba(180,130,255,.08);
  font-family:var(--sans);font-size:10.5px;letter-spacing:.16em;color:rgba(240,225,255,.7);
  transition:background .35s,border-color .35s,color .35s}
.bd-cam-btn:hover{background:rgba(200,150,255,.18);border-color:rgba(230,190,255,.6);color:#fff}

/* 开花程度条 */
.bd-bloom{width:min(52vw,210px);height:2px;margin-top:14px;border-radius:2px;
  background:rgba(255,255,255,.09);overflow:hidden}
.bd-bloom i{display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,#ff9fd0,#c9a0ff,#ffd9a8);
  transition:transform .1s linear}

/* 摄像头小窗 */
.bd-cam{position:fixed;right:16px;bottom:calc(104px + env(safe-area-inset-bottom));
  width:76px;height:76px;border-radius:50%;overflow:hidden;z-index:6;background:#0a0712;
  border:1px solid rgba(255,190,235,.5);
  box-shadow:0 0 22px rgba(210,140,255,.35),inset 0 0 18px rgba(0,0,0,.45)}
.bd-cam video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
.bd-cam .cam-meter{position:absolute;left:8px;right:8px;bottom:6px;height:2px;border-radius:2px;
  background:rgba(255,255,255,.12);overflow:hidden}
.bd-cam .cam-meter i{display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,#ffd9a8,#ff8fa3);transition:transform .12s linear}

/* ── 22d. 寻心 / 片尾 ─────────────────────────────────────── */
/* 藏在每一幕里的小心 */
.hidden-heart{position:absolute;width:26px;height:26px;z-index:6;translate:-50% -50%;padding:0;
  color:rgba(255,143,163,.3);display:grid;place-items:center;
  animation:heartHint 4.6s ease-in-out infinite}
.hidden-heart svg{width:100%;height:100%;filter:drop-shadow(0 0 6px rgba(224,87,122,.35))}
.hidden-heart:hover{color:rgba(255,143,163,.9)}
.hidden-heart.is-got{color:rgba(255,143,163,.1);animation:none;pointer-events:none}
@keyframes heartHint{0%,100%{opacity:.45;transform:scale(.88)}50%{opacity:1;transform:scale(1.12)}}
.heart-badge{display:inline-flex;align-items:center;gap:5px;margin-right:8px;padding:6px 11px;
  border-radius:999px;border:1px solid rgba(255,143,163,.3);background:rgba(224,87,122,.1);
  font-family:var(--sans);font-size:9.5px;letter-spacing:.14em;color:#ffd0da}

/* 片尾字幕 */
.credits-link{margin-top:14px;font-family:var(--sans);font-size:9.5px;letter-spacing:.24em;
  color:rgba(247,239,230,.24);border-bottom:1px dotted rgba(247,239,230,.16);padding-bottom:2px;
  transition:color .35s}
.credits-link:hover{color:rgba(247,239,230,.66)}
.credits-layer{position:fixed;inset:0;z-index:48;background:#05030a;overflow:hidden;
  animation:fade .6s var(--ease) both}
.credits-layer::before,.credits-layer::after{content:"";position:absolute;left:0;right:0;height:22vh;
  z-index:2;pointer-events:none}
.credits-layer::before{top:0;background:linear-gradient(#05030a,transparent)}
.credits-layer::after{bottom:0;background:linear-gradient(transparent,#05030a)}
.credits-roll{position:absolute;left:0;right:0;top:100vh;padding:0 26px;text-align:center;
  animation:rollUp 28s linear forwards}
@keyframes rollUp{from{transform:translateY(0)}to{transform:translateY(calc(-100vh - 100%))}}
.cr-title{margin:0 0 46px;font-family:var(--serif);font-size:24px;letter-spacing:.5em;
  color:var(--gold);text-indent:.5em}
.cr-row{display:flex;justify-content:space-between;align-items:baseline;gap:26px;
  max-width:400px;margin:0 auto 20px;font-size:13px}
.cr-k{font-family:var(--sans);font-size:10.5px;letter-spacing:.24em;color:rgba(247,239,230,.4)}
.cr-v{font-family:var(--kai);font-size:14px;letter-spacing:.06em;color:rgba(247,239,230,.92)}
.cr-line{max-width:340px;margin:44px auto 0;font-family:var(--kai);font-size:14px;
  line-height:2.15;letter-spacing:.06em;color:rgba(247,239,230,.7);text-align:center}
.cr-end{max-width:340px;margin:52px auto 0;font-family:var(--serif);font-size:19px;
  letter-spacing:.3em;color:#ffe6b8;text-indent:.3em}
.credits-close{position:absolute;right:18px;top:calc(16px + env(safe-area-inset-top));z-index:4;
  font-family:var(--sans);font-size:10.5px;letter-spacing:.2em;color:rgba(247,239,230,.45);
  border:1px solid rgba(247,239,230,.16);border-radius:999px;padding:8px 16px;
  background:rgba(255,255,255,.03)}
.credits-close:hover{color:var(--cream);border-color:rgba(240,205,150,.5)}

/* 找齐九颗心 · 那封信 */
.letter-entry{margin-top:14px}
.letter-layer{position:fixed;inset:0;z-index:47;display:grid;place-items:center;padding:24px;
  background:rgba(6,4,11,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  overflow-y:auto;animation:fade .5s var(--ease) both}
.letter-sheet{position:relative;width:min(420px,94vw);padding:30px 26px 24px;border-radius:4px;
  background:linear-gradient(160deg,#fdf7ec,#efdfc6);color:#3b2a26;
  box-shadow:0 40px 80px -30px #000;animation:cardIn .7s var(--ease) both}
.ls-title{margin:0 0 18px;text-align:center;font-family:var(--serif);font-size:22px;
  letter-spacing:.24em;color:#7a2338;text-indent:.24em}
.ls-body p{margin:0 0 1.05em;font-family:var(--kai);font-size:14.5px;line-height:2.05;
  letter-spacing:.04em;color:#43302b}
.ls-body p:last-child{margin-bottom:0}
.ls-sign{margin:20px 0 0;text-align:right;font-family:var(--kai);font-size:13px;color:#7a2338}
.ls-close{display:block;margin:22px auto 0}

/* ── 23. 鼠标爱心拖尾 ──────────────────────────────────────── */
.cursor-heart{position:fixed;z-index:45;pointer-events:none;width:var(--s,9px);height:var(--s,9px);
  translate:-50% -50%;rotate:var(--r,0deg);opacity:.9;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath d='M16 28S3 20.4 3 11.9C3 6.9 6.9 3.6 11 3.6c2.6 0 4.3 1.4 5 3 0.7-1.6 2.4-3 5-3 4.1 0 8 3.3 8 8.3C29 20.4 16 28 16 28z' fill='%23ff8fa3'/%3E%3C/svg%3E") center/contain no-repeat;
  animation:heartFloat 1.05s var(--ease-soft) forwards}
@keyframes heartFloat{0%{opacity:.9;transform:translateY(0) scale(.55)}
  40%{opacity:.75;transform:translateY(-10px) scale(1)}
  100%{opacity:0;transform:translateY(-38px) scale(.8)}}

/* ── 24. 状态补充 ──────────────────────────────────────────── */
#canvas-celebrate{z-index:35}
.btn:disabled{opacity:.72;cursor:default;transform:none !important}
.envelope[hidden],.letter[hidden],.camera-snap[hidden]{display:none}

/* ── 25. 减少动效 ──────────────────────────────────────────── */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important}
  .gate-slide{transition:opacity 1s linear,transform 12s linear}
  [data-reveal],.typed span{opacity:1 !important;transform:none !important;filter:none !important;translate:none !important}
  .car-petals{display:none}
}

/* ── 手势提示条 ───────────────────────────────────────────── */
.gs-hint{position:fixed;left:50%;bottom:calc(64px + env(safe-area-inset-bottom));
  translate:-50% 0;z-index:41;display:flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:999px;opacity:0;pointer-events:none;
  background:rgba(20,12,20,.62);border:1px solid rgba(255,190,210,.18);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  font-family:var(--sans);font-size:10.5px;letter-spacing:.16em;
  color:rgba(255,232,228,.72);transition:opacity .4s}
.gs-hint.on{opacity:1}
.gs-hint b{font-size:13px;color:rgba(255,190,170,.9)}

/* ── 手势模式：这些按钮不再需要 ─────────────────────────── */
#btn-palette,#btn-heart-pal,#btn-tree-next,#btn-tree-cam,#btn-tree-go,
#btn-pf-cam,#btn-pf-auto,.bd3-cambtn,.bd3-nums{display:none!important}

/* ── 手势弹出的照片 ───────────────────────────────────────── */
.pop-photo{position:fixed;translate:-50% -50%;z-index:60;pointer-events:none;
  border-radius:50%;overflow:hidden;border:2px solid rgba(255,225,190,.9);
  box-shadow:0 0 40px rgba(255,170,130,.55),0 10px 40px rgba(0,0,0,.45);
  animation:popIn 2.9s cubic-bezier(.16,1,.3,1) forwards;
  transform:rotate(var(--tilt,-4deg))}
.pop-photo img{width:100%;height:100%;object-fit:cover;display:block}
@keyframes popIn{
  0%{opacity:0;scale:.2;filter:blur(6px)}
  14%{opacity:1;scale:1.06;filter:blur(0)}
  22%{scale:1}
  70%{opacity:1;translate:-50% -60%}
  100%{opacity:0;scale:.92;translate:-50% -95%;filter:blur(2px)}
}

/* 手势生效时，顶部提示闪一下 */
.bd3-steps.flash .bd3-hint{animation:hintFlash .6s ease}
@keyframes hintFlash{
  0%{transform:scale(1);color:rgba(255,238,232,.86)}
  30%{transform:scale(1.06);color:#fff;text-shadow:0 0 22px rgba(255,170,140,.9)}
  100%{transform:scale(1);color:rgba(255,238,232,.86)}
}

.gs-switch{position:absolute;right:6px;top:6px;width:20px;height:20px;border-radius:50%;
  border:1px solid rgba(255,255,255,.25);background:rgba(20,12,20,.55);
  color:rgba(255,235,235,.8);font-size:11px;line-height:1;cursor:pointer;z-index:3;
  display:grid;place-items:center;padding:0;transition:.25s}
.gs-switch:hover{background:rgba(255,150,170,.35);color:#fff}
.gs-cam.is-off .gs-switch{display:none}
.gs-cam.is-dead{filter:grayscale(.7);border-color:rgba(255,120,120,.55)}
.gs-cam.is-dead .gs-switch{animation:camBlink 1.2s infinite}
@keyframes camBlink{0%,100%{opacity:1}50%{opacity:.35}}