*{box-sizing:border-box}:root{font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Playfair Display,Georgia,serif;font-weight:400;line-height:1.5}body{background-color:#c8102e;min-width:320px;min-height:100vh;margin:0}#root{width:100%}h1,h2,h3,p{margin:0}html{scroll-behavior:smooth}:root{--red-primary:#c8102e;--red-dark:#9a0c23;--red-light:#e63946;--gold-primary:gold;--gold-dark:#daa520;--gold-light:#ffe44d;--cream:#fff8e7;--white:#fff;--envelope-width:220px;--envelope-height:320px}.app{background:linear-gradient(180deg, var(--red-dark) 0%, var(--red-primary) 50%, var(--red-dark) 100%);min-height:100vh;overflow-x:hidden}.hero{text-align:center;background:linear-gradient(#0003 0%,#0000 100%);padding:3rem 1.5rem 2rem;position:relative}.lantern{font-size:2.5rem;animation:3s ease-in-out infinite sway;position:absolute;top:1rem}.lantern-left{animation-delay:0s;left:1rem}.lantern-right{animation-delay:1.5s;right:1rem}@keyframes sway{0%,to{transform:rotate(-5deg)}50%{transform:rotate(5deg)}}.hero-title{flex-direction:column;gap:.5rem;margin:0 0 1rem;display:flex}.chinese-text{color:var(--gold-primary);text-shadow:2px 2px 4px #0000004d;letter-spacing:.1em;font-family:Noto Serif SC,serif;font-size:2.5rem}.english-text{color:var(--white);font-family:Playfair Display,serif;font-size:1.8rem;font-weight:600}.hero-subtitle{color:var(--gold-light);margin:0 0 1rem;font-family:Playfair Display,serif;font-size:1.2rem}.hero-note{color:var(--cream);max-width:500px;margin:0 auto;font-size:1rem;line-height:1.6}.carousel-section{padding:2rem 0;position:relative}.section-title{color:var(--gold-primary);text-align:center;margin:0 0 1.5rem;font-family:Playfair Display,serif;font-size:1.5rem}.carousel{scroll-snap-type:x mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;scrollbar-width:none;-ms-overflow-style:none;gap:1.5rem;padding:1rem 2rem 2rem;display:flex;overflow-x:auto}.carousel::-webkit-scrollbar{display:none}.carousel-arrow{border:2px solid var(--gold-primary);width:50px;height:50px;color:var(--gold-primary);cursor:pointer;z-index:10;background:#c8102ee6;border-radius:50%;font-size:2rem;transition:all .3s;display:none;position:absolute;top:50%;transform:translateY(-50%)}.carousel-arrow:hover{background:var(--gold-primary);color:var(--red-dark)}.arrow-left{left:1rem}.arrow-right{right:1rem}.swipe-hint{text-align:center;color:var(--gold-light);opacity:.8;margin:0;font-size:.9rem}.envelope-card{width:var(--envelope-width);height:var(--envelope-height);perspective:1000px;cursor:pointer;scroll-snap-align:center;flex:none}.envelope-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .8s cubic-bezier(.4,0,.2,1);position:relative}.envelope-card.flipped .envelope-inner{transform:rotateY(180deg)}.envelope-front,.envelope-back{backface-visibility:hidden;border-radius:12px;width:100%;height:100%;position:absolute;box-shadow:0 10px 30px #0000004d}.envelope-front{background:linear-gradient(145deg, var(--red-light) 0%, var(--red-primary) 50%, var(--red-dark) 100%);justify-content:center;align-items:center;display:flex}.envelope-border{border:3px solid var(--gold-primary);background:linear-gradient(145deg,#0000 0%,#ffd7000d 50%,#0000 100%);border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:1rem;width:calc(100% - 20px);height:calc(100% - 20px);display:flex}.fortune-character{color:var(--gold-primary);text-shadow:2px 2px 4px #0003;font-family:Noto Serif SC,serif;font-size:4rem;transform:rotate(180deg)}.envelope-name{color:var(--gold-light);text-align:center;padding:0 1rem;font-family:Playfair Display,serif;font-size:1.3rem;font-weight:600}.tap-hint{color:var(--cream);opacity:.8;font-size:.85rem}.envelope-back{background:linear-gradient(145deg, var(--cream) 0%, #fff 100%);box-sizing:border-box;justify-content:center;align-items:center;padding:1.5rem;display:flex;transform:rotateY(180deg)}.message-content{text-align:center;flex-direction:column;gap:.8rem;display:flex}.personal-message{color:var(--red-dark);margin:0;font-family:Playfair Display,serif;font-size:1rem;line-height:1.5}.message-divider{color:var(--gold-dark);letter-spacing:.5em;font-size:.8rem}.standard-blessing{color:#666;margin:0;font-size:.9rem;font-style:italic;line-height:1.4}.close-hint{color:#999;margin-top:.5rem;font-size:.75rem}.team-envelope .envelope-front{background:linear-gradient(145deg, var(--gold-dark) 0%, var(--gold-primary) 50%, var(--gold-dark) 100%)}.team-envelope .envelope-border{border-color:var(--red-primary)}.team-envelope .fortune-character{color:var(--red-primary)}.team-envelope .envelope-name,.team-envelope .tap-hint{color:var(--red-dark)}.footer{text-align:center;background:linear-gradient(#0000 0%,#0003 100%);padding:2rem 1rem 3rem}.footer-decoration{letter-spacing:.5em;margin-bottom:1rem;font-size:1.5rem}.footer-text{color:var(--gold-primary);margin:0 0 .5rem;font-family:Playfair Display,serif;font-size:1.1rem}.footer-credits{color:var(--cream);margin:0 0 .5rem;font-size:.9rem}.footer-year{color:#fff9;margin:0;font-size:.8rem}@media (min-width:768px){.hero{padding:4rem 2rem 3rem}.lantern{font-size:3.5rem;top:1.5rem}.lantern-left{left:2rem}.lantern-right{right:2rem}.chinese-text{font-size:3.5rem}.english-text{font-size:2.2rem}.hero-subtitle{font-size:1.4rem}.carousel-arrow{justify-content:center;align-items:center;display:flex}.swipe-hint{display:none}.carousel{padding:1rem 4rem 2rem}:root{--envelope-width:250px;--envelope-height:360px}.fortune-character{font-size:5rem}.envelope-name{font-size:1.5rem}.personal-message{font-size:1.1rem}}@media (min-width:1024px){.hero{padding:5rem 3rem 4rem}.lantern{font-size:4rem}.lantern-left{left:3rem}.lantern-right{right:3rem}.chinese-text{font-size:4rem}.english-text{font-size:2.5rem}.carousel{gap:2rem;padding:1rem 5rem 2rem}.arrow-left{left:1.5rem}.arrow-right{right:1.5rem}}.envelope-card:focus{outline:3px solid var(--gold-primary);outline-offset:4px}.envelope-card:focus:not(:focus-visible){outline:none}.carousel-arrow:focus{outline:3px solid var(--gold-primary);outline-offset:2px}@media (prefers-reduced-motion:reduce){.envelope-inner{transition:none}.lantern{animation:none}}