:root{--cream:#fff8f1;--paper:#fff3ea;--peach:#f6afa8;--blush:#f7b7c8;--soft-pink:#fad1dc;--apricot:#ffd2a6;--butter:#ffe5a3;--gold:#f7c873;--rose:#d9798e;--wine:#4a2638;--plum:#563146;--warm-ink:#563b3c;--muted-ink:rgba(86,59,60,.68);--line:rgba(217,121,142,.25)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;overflow-x:hidden;color:var(--warm-ink);background:var(--paper);font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-weight:400}button{font:inherit;color:inherit}button:focus-visible{outline:3px solid var(--gold);outline-offset:5px}.site-main{min-height:100vh;background:var(--paper)}.story-shell{position:relative;z-index:2}.scene{position:relative;min-height:100svh;overflow:hidden}.responsive-picture{display:block;overflow:hidden}.responsive-picture 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76%),linear-gradient(180deg,rgba(255,245,235,.05),rgba(93,39,57,.22));pointer-events:none}.opening-copy{position:relative;z-index:2;width:min(720px,90vw);margin-top:-6vh;padding:1.8rem 1.4rem 2rem;border-radius:28px;background:rgba(86,49,70,.12);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);text-align:center;color:#fffaf4;text-shadow:0 2px 24px rgba(74,38,56,.48)}.opening-copy .eyebrow{color:#fff4df}.opening h1{margin:1.4rem 0 1rem;color:#fffaf4;font-family:STSong,Songti SC,serif;font-size:clamp(2.8rem,7vw,7rem);font-weight:400;letter-spacing:.08em}.opening h1 span{margin:0 .22em;color:var(--butter);font-family:serif;font-size:.55em}.opening-quote{white-space:pre-line;margin:0;color:rgba(255,250,244,.92);font-family:STSong,Songti SC,serif;font-size:clamp(.95rem,1.5vw,1.2rem);line-height:2;letter-spacing:.12em}.enter-button{margin-top:2.4rem}.enter-button span{font-size:1.4rem}.opening-hint{margin:1rem 0 0;color:rgba(255,250,244,.8);font-size:.75rem;letter-spacing:.08em}.opening-petal{position:absolute;z-index:1;color:#fff1ee;font-size:1.1rem;opacity:.85;animation:floatPetal 7s ease-in-out infinite}.petal-one{top:25%;left:18%}.petal-two{top:42%;right:15%;animation-delay:2.3s}.scroll-note{position:absolute;z-index:2;bottom:2rem;left:50%;margin:0;transform:translateX(-50%);color:rgba(255,250,244,.82);font-size:.7rem;letter-spacing:.12em;text-align:center}.scroll-note span{display:block;margin-top:.5rem;font-size:1.2rem}@keyframes floatPetal{50%{transform:translate(18px,20px) rotate(12deg)}}.section-pad{position:relative;padding:clamp(6rem,11vw,12rem) max(6vw,24px)}.story-intro{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(300px,.92fr);align-items:center;grid-gap:clamp(2rem,7vw,8rem);gap:clamp(2rem,7vw,8rem);background:linear-gradient(145deg,var(--paper),#ffe0d0 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img{transition:transform .8s ease}.world-card:hover img{transform:scale(1.05)}.world-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(58,30,45,.82))}.world-overlay{position:absolute;z-index:1;right:1.2rem;bottom:1.4rem;left:1.2rem;color:#fffaf4}.world-overlay span{color:var(--butter);font-size:.65rem;letter-spacing:.12em}.world-overlay h3{margin:.65rem 0 .35rem;font-family:STSong,Songti SC,serif;font-size:1.7rem;font-weight:400}.world-overlay p{margin:0;color:rgba(255,250,244,.82);font-size:.78rem;line-height:1.7}.future-section{background:linear-gradient(150deg,#fff3ea,#ffdcbf)}.future-list{max-width:900px;overflow-x:clip}.future-item{display:grid;grid-template-columns:70px 1fr 30px;align-items:center;padding:1.8rem 0;border-top:1px solid var(--line)}.future-item:last-child{border-bottom:1px solid var(--line)}.future-item>span{color:var(--rose);font-family:serif}.future-item h3{margin:0 0 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30px rgba(95,43,57,.22);cursor:pointer;overflow:hidden;transition:transform .35s ease,box-shadow .35s ease}.envelope:hover{transform:translateY(-5px);box-shadow:0 24px 38px rgba(95,43,57,.28)}.envelope-flap{position:absolute;inset:0 0 auto;height:56%;background:linear-gradient(145deg,#fff3ea,#f7b7c8);-webkit-clip-path:polygon(0 0,100% 0,50% 100%);clip-path:polygon(0 0,100% 0,50% 100%)}.envelope-seal{position:absolute;z-index:1;top:49%;left:50%;display:grid;width:3rem;height:3rem;place-items:center;border:0;border-radius:50%;color:#fffaf4;background:var(--rose);box-shadow:0 0 0 7px rgba(255,255,255,.24);transform:translate(-50%,-50%);font-size:1.6rem}.envelope-label{position:absolute;right:0;bottom:14%;left:0;color:var(--warm-ink);font-size:.8rem;letter-spacing:.08em}.love-letter{position:relative;padding:clamp(2rem,4vw,4rem);color:#66484a;background:#fff8ec;box-shadow:16px 20px 35px rgba(95,43,57,.18);line-height:2}.love-letter:before{content:"";position:absolute;inset:1rem;border:1px solid rgba(217,121,142,.25);pointer-events:none}.love-letter p{position:relative;margin:0 0 1.2rem;font-family:STSong,Songti SC,serif;font-size:.95rem}.letter-to{color:var(--rose)}.letter-signature{margin-top:2rem!important;color:var(--rose);text-align:right;white-space:pre-line}.final-section{position:relative;display:grid;min-height:100svh;place-items:center;overflow:hidden;background:var(--plum)}.final-section:before{content:"";position:absolute;z-index:1;inset:-20%;pointer-events:none;opacity:0;background:radial-gradient(circle at 50% 47%,rgba(255,229,163,.62),transparent 22%),radial-gradient(circle at 27% 42%,rgba(247,183,200,.32),transparent 18%),radial-gradient(circle at 73% 46%,rgba(247,200,143,.35),transparent 18%);transform:scale(.65)}.final-section.is-burst:before{opacity:1;animation:finalLightBurst 2.4s ease-out both}.final-art,.final-art img{position:absolute;inset:0;width:100%;height:100%}.final-wash{position:absolute;inset:0;background:linear-gradient(180deg,rgba(86,49,70,.04),rgba(53,38,38,.36))}.final-copy{position:relative;z-index:3;width:min(720px,90vw);color:#fffaf4;text-align:center;text-shadow:0 2px 16px rgba(52,27,39,.24)}.final-copy .eyebrow{color:var(--butter)}.final-lines{margin:2rem 0 2.4rem}.final-lines p{margin:0;color:rgba(255,250,244,.95);font-size:clamp(1.1rem,2.2vw,2.1rem);line-height:1.85}.final-greeting,.final-lines p{font-family:STSong,Songti SC,serif}.final-greeting{margin:1rem 0 2rem;color:var(--butter);font-size:clamp(2.6rem,5vw,5rem)}.heart-trigger{flex-direction:column;min-width:190px;min-height:80px;padding:.6rem 1.8rem;font-size:2rem}.heart-trigger b{font-size:.82rem;font-weight:400;letter-spacing:.08em}.final-message{margin-top:1.4rem;color:#fffaf4;letter-spacing:.12em}.secret-star{position:absolute;z-index:4;top:20%;right:22%;border:0;color:rgba(255,229,163,.72);background:none;cursor:pointer;font-size:1.3rem;transition:.3s}.secret-star:hover{color:#fffaf4;transform:scale(1.25)}.easter-egg{position:absolute;z-index:6;top:20%;right:10%;padding:2rem 2.4rem;border:1px solid rgba(255,229,163,.48);color:var(--warm-ink);background:rgba(255,248,241,.93);box-shadow:0 18px 36px rgba(53,38,38,.25)}.easter-egg button{position:absolute;top:.45rem;right:.65rem;border:0;background:none;cursor:pointer;font-size:1.2rem}.easter-egg p{margin:.4rem 0;font-family:STSong,Songti SC,serif}.easter-egg p:last-child{color:var(--rose);font-size:1.3rem}.music-control{position:fixed;z-index:10;right:1.4rem;bottom:1.4rem}.music-button{display:flex;min-height:46px;align-items:center;gap:.55rem;padding:0 .9rem;border:1px solid rgba(217,121,142,.3);border-radius:999px;color:var(--rose);background:rgba(255,248,241,.9);box-shadow:0 8px 20px rgba(95,43,57,.12);cursor:pointer;font-size:.72rem}.music-button:disabled{cursor:not-allowed;opacity:.68}.music-bars{color:var(--rose);font-size:1.2rem;line-height:1}@keyframes finalLightBurst{0%{opacity:0;transform:scale(.55)}28%{opacity:1;transform:scale(1)}to{opacity:.72;transform:scale(1.18)}}@media (prefers-reduced-motion:reduce){*,:after,:before{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.star-canvas{display:none}.final-section.is-burst:before{opacity:.65;transform:none}}@media (max-width:800px){.section-pad{padding:5rem 1.25rem}.opening-copy{margin-top:-9vh}.opening h1{font-size:2.65rem}.opening-quote{font-size:.88rem}.primary-button{min-height:54px;padding:0 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img{aspect-ratio:1.12}.world-section{padding-right:0}.worlds-rail{display:flex;overflow-x:auto;padding-right:1.25rem;scroll-snap-type:x mandatory}.world-card{min-width:74vw;scroll-snap-align:start}.future-item{grid-template-columns:42px 1fr 22px;padding:1.4rem 0}.future-item h3{font-size:1.1rem}.letter-wrap{display:flex;flex-direction:column;align-items:stretch;gap:2rem}.poetry-section{display:block}.poetry-heading{margin-bottom:2.5rem}.poetry-grid{grid-template-columns:1fr;gap:.8rem}.poem-card{min-height:0;padding:1.2rem}.letter-visual{width:100%}.love-letter{padding:2rem 1.35rem}.love-letter p{font-size:.88rem}.final-copy{width:min(90vw,560px)}.final-lines p{font-size:1.08rem}.final-greeting{font-size:2.8rem}.secret-star{top:14%;right:15%}.easter-egg{top:17%;right:1.25rem;left:1.25rem;padding:1.8rem 1.4rem}.music-control{right:.8rem;bottom:.8rem}.music-button{min-height:46px}}