*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}body{min-height:100svh;overflow:hidden;background:radial-gradient(circle at 50% 120%,#46305a 0,#15193a 44%,#050817 100%);color:#fff}#sky{position:fixed;inset:0;width:100%;height:100%;z-index:0}.nebula{position:fixed;border-radius:50%;filter:blur(80px);opacity:.25;pointer-events:none}.n1{width:45vw;height:35vw;background:#764caa;top:-8%;left:3%;animation:drift 14s ease-in-out infinite}.n2{width:42vw;height:34vw;background:#d06e98;right:-6%;bottom:-10%;animation:drift 17s ease-in-out infinite reverse}@keyframes drift{50%{transform:translate(8vw,5vh) scale(1.18)}}main{position:relative;z-index:2;min-height:100svh}.scene{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;pointer-events:none;transform:scale(1.03);transition:opacity .9s ease,transform .9s ease;overflow:auto}.scene.active{opacity:1;pointer-events:auto;transform:scale(1)}.glass{background:linear-gradient(145deg,rgba(255,255,255,.14),rgba(255,255,255,.05));border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(18px);box-shadow:0 30px 80px rgba(0,0,0,.38)}.card{width:min(92vw,470px);padding:38px 30px;border-radius:28px;text-align:center}.eyebrow{font-size:10px;letter-spacing:.38em;opacity:.66}h1{font-size:clamp(38px,10vw,64px);letter-spacing:.12em;margin:16px 0 8px;font-family:Georgia,"Songti SC",serif;font-weight:500}.card p{opacity:.82}.heart{font-size:46px;color:#ef9ab4;text-shadow:0 0 25px #e87f9f;margin:20px}.card label{display:block;font-size:13px;opacity:.78;margin-bottom:12px}.passrow{display:flex;gap:10px}.passrow input,.passrow button{border-radius:999px;border:1px solid rgba(255,255,255,.18);padding:14px 18px;font-size:15px}.passrow input{flex:1;background:rgba(5,8,26,.55);color:white;outline:none}.passrow 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rotate(-4deg)}to{opacity:1;transform:none}}.envelope{position:relative;width:100%;height:260px;transform-style:preserve-3d;filter:drop-shadow(0 28px 32px rgba(0,0,0,.35))}.envShadow{height:30px;margin:0 15% -2px;border-radius:50%;background:rgba(0,0,0,.34);filter:blur(14px)}.back{position:absolute;inset:0;background:linear-gradient(145deg,#2a3563,#111a43);border-radius:16px}.letterPeek{position:absolute;left:7%;right:7%;bottom:12px;height:235px;background:#fff8ee;color:#75515c;border-radius:10px;padding:28px;font-family:Georgia,"Songti SC",serif;transform:translateY(72px);transition:transform 1.2s ease;z-index:2}.letterPeek b{font-size:28px}.letterPeek span{display:block;margin-top:12px;letter-spacing:.3em}.pocket{position:absolute;z-index:4}.left{left:0;bottom:0;width:52%;height:100%;background:linear-gradient(145deg,#283562,#17204b);clip-path:polygon(0 0,100% 52%,100% 100%,0 100%);border-radius:0 0 0 16px}.right{right:0;bottom:0;width:52%;height:100%;background:linear-gradient(215deg,#283562,#111a43);clip-path:polygon(100% 0,0 52%,0 100%,100% 100%);border-radius:0 0 16px 0}.bottom{left:0;bottom:0;width:100%;height:70%;background:linear-gradient(180deg,#1f2a58,#0f173d);clip-path:polygon(0 100%,0 46%,50% 0,100% 46%,100% 100%);border-radius:0 0 16px 16px}.flap{position:absolute;left:0;top:0;width:100%;height:150px;z-index:5;transform-origin:top;transition:transform 1s ease}.flap:before{content:"";position:absolute;inset:0;background:linear-gradient(155deg,#374575,#18224d);clip-path:polygon(0 0,100% 0,50% 100%)}.seal{position:absolute;left:50%;top:104px;z-index:7;transform:translateX(-50%);width:68px;height:68px;border-radius:50%;border:0;color:white;font-size:31px;background:radial-gradient(circle at 35% 28%,#ef9bb4,#a83f64 70%);box-shadow:0 0 30px rgba(233,111,151,.5);animation:pulse 1.7s infinite}@keyframes pulse{50%{transform:translateX(-50%) scale(1.08);box-shadow:0 0 45px rgba(233,111,151,.8)}}.envWrap.open .flap{transform:rotateX(180deg);z-index:1}.envWrap.open .seal{opacity:0;pointer-events:none}.envWrap.open .letterPeek{transform:translateY(-82px)}.letterScene{align-items:flex-start;padding:18px 12px 70px}.layout{width:min(980px,100%);padding-top:25px}.layout header{display:flex;justify-content:space-between;align-items:end;margin:0 auto 18px;width:min(760px,100%)}.layout header span{font-size:10px;letter-spacing:.35em;opacity:.65}.layout h2{font-family:Georgia,"Songti SC",serif;font-size:clamp(28px,7vw,46px);font-weight:500;margin:7px 0;color:#ffe7ee}.ghost,.primary{border:1px solid rgba(255,255,255,.2);border-radius:999px;color:white;padding:10px 16px;background:rgba(255,255,255,.1);backdrop-filter:blur(10px)}.photos{position:relative;height:260px;max-width:850px;margin:0 auto -95px;z-index:3}.polaroid{position:absolute;width:190px;margin:0;padding:10px 10px 30px;background:#fff9ef;color:#6b5058;box-shadow:0 18px 45px rgba(0,0,0,.35);opacity:0}.polaroid img{width:100%;height:190px;object-fit:cover;display:block}.polaroid figcaption{text-align:center;font-family:Georgia,"Songti SC",serif;font-size:13px;margin-top:8px}.a{left:0;transform:rotate(-8deg)}.b{left:50%;transform:translateX(-50%) rotate(3deg)}.c{right:0;transform:rotate(8deg)}#letterScene.active .a{animation:photo .8s .3s forwards}#letterScene.active .b{animation:photo .8s .7s forwards}#letterScene.active .c{animation:photo .8s 1.1s forwards}@keyframes photo{from{opacity:0;margin-top:40px}to{opacity:1;margin-top:0}}.paper{position:relative;width:min(760px,100%);margin:0 auto;background:linear-gradient(rgba(255,249,239,.98),rgba(255,246,232,.98));color:#5a3f47;border-radius:8px;padding:135px clamp(24px,6vw,62px) 55px;box-shadow:0 30px 80px rgba(0,0,0,.35)}.paper:before{content:"";position:absolute;inset:0;border-radius:8px;pointer-events:none;background:repeating-linear-gradient(to bottom,transparent 0,transparent 35px,rgba(129,95,105,.055) 36px)}.typed{position:relative;white-space:pre-wrap;font-size:clamp(15px,3.7vw,18px);line-height:2;letter-spacing:.025em}.ending{position:relative;margin-top:34px;text-align:center}.handwrite{font-family:"Kaiti SC","STKaiti",cursive;font-size:clamp(30px,7vw,46px);color:#8f3d56;display:inline-flex;gap:8px;align-items:center}.handwrite span{display:inline-block;white-space:nowrap;overflow:hidden;width:0;border-right:2px solid #8f3d56}.handwrite.write span{animation:write 3.2s steps(9,end) forwards,caret .8s step-end infinite}@keyframes write{to{width:9em}}@keyframes caret{50%{border-color:transparent}}.ending p{font-family:Georgia,"Songti SC",serif;font-size:17px}.sign{text-align:left;margin-top:35px;font-style:italic}.date{text-align:right;margin-top:-18px}.hidden{opacity:0;transform:translateY(20px);pointer-events:none;transition:.8s ease}.visible{opacity:1;transform:none;pointer-events:auto}.finale{width:min(580px,100%);margin:35px auto 0;padding:34px;text-align:center;border-radius:28px;background:linear-gradient(145deg,rgba(255,255,255,.14),rgba(255,255,255,.05));border:1px solid rgba(255,255,255,.15);backdrop-filter:blur(16px)}.kicker{font-size:clamp(48px,12vw,86px);font-family:Georgia,serif;color:#f7ccd9;text-shadow:0 0 35px rgba(247,204,217,.45)}.finale h3{font-family:Georgia,serif;font-weight:400}.finale #counter{font-size:76px;font-family:Georgia,serif;color:#f7ccd9;margin:12px}.primary{background:linear-gradient(135deg,#d98da5,#aa496a);padding:13px 22px}.music{position:fixed;right:18px;bottom:max(18px,env(safe-area-inset-bottom));z-index:10;width:58px;height:58px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(12,17,48,.72);color:white;backdrop-filter:blur(12px);display:flex;flex-direction:column;align-items:center;justify-content:center}.music small{font-size:9px}.music.playing{animation:spin 5s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:680px){.passrow{flex-direction:column}.passrow button{width:100%}.photos{height:205px;margin-bottom:-70px}.polaroid{width:125px;padding:7px 7px 23px}.polaroid img{height:130px}.polaroid figcaption{font-size:10px}.paper{padding-top:105px}.layout header{align-items:center}.layout h2{font-size:30px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
.continueWrap{
  width:min(580px,100%);
  margin:28px auto 0;
  text-align:center;
}
.continueBtn{
  position:relative;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.22);
  border-radius:999px;
  padding:14px 28px;
  color:white;
  font-size:15px;
  letter-spacing:.08em;
  background:linear-gradient(135deg,#d98da5,#aa496a);
  box-shadow:0 12px 30px rgba(184,79,113,.32);
  backdrop-filter:blur(10px);
  cursor:pointer;
  animation:continuePulse 1.9s ease-in-out infinite;
}
.continueBtn:after{
  content:"";
  position:absolute;
  top:0;
  left:-120%;
  width:55%;
  height:100%;
  transform:skewX(-22deg);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  animation:buttonShine 2.8s ease-in-out infinite;
}
@keyframes continuePulse{
  50%{transform:translateY(-3px);box-shadow:0 16px 38px rgba(184,79,113,.45)}
}
@keyframes buttonShine{
  0%,40%{left:-120%}
  70%,100%{left:150%}
}

.routeSection{
  width:min(760px,100%);
  margin:30px auto 0;
  padding:24px 20px;
  border-radius:24px;
  text-align:center;
  background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.045));
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(14px);
  box-shadow:0 18px 45px rgba(0,0,0,.2);
}
.routeTitle{
  font-family:Georgia,"Songti SC",serif;
  font-size:24px;
  color:#ffe5ed;
  margin-bottom:18px;
  letter-spacing:.08em;
}
.routeTrack{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:10px 12px;
  line-height:1.8;
  color:#f3dce4;
}
.routeTrack span{
  padding:7px 13px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:inset 0 0 12px rgba(255,255,255,.025);
}
.routeTrack i{
  color:#eda2b8;
  font-style:normal;
  text-shadow:0 0 12px rgba(237,162,184,.7);
  animation:routeGlow 1.8s ease-in-out infinite;
}
@keyframes routeGlow{
  50%{transform:scale(1.25);opacity:.65}
}
@media(max-width:680px){
  .routeSection{padding:20px 14px}
  .routeTitle{font-size:21px}
  .routeTrack{gap:8px}
  .routeTrack span{font-size:13px;padding:6px 10px}
}

.forever{font-size:96px;line-height:1;font-family:Georgia,serif;color:#f7ccd9;text-shadow:0 0 35px rgba(247,204,217,.5)}
.foreverText{font-size:26px;margin-top:10px;letter-spacing:.08em}
.continued{margin-top:18px;font-size:15px;opacity:.7;font-style:italic;letter-spacing:.15em}