:root{--yellow:#FFD93D;--pink:#FF8FAB;--blue:#6EC6FF;--green:#A8E6CF;--text:#4A3F55}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}[hidden]{display:none!important}body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Comic Sans MS",sans-serif;color:var(--text);background:linear-gradient(180deg,#FFF7D6 0%,#FFE3EF 45%,#D9F2FF 100%);min-height:100vh;overflow-x:hidden}body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;background:radial-gradient(circle at 15% 20%,#ffffffcc 0 12px,transparent 13px),radial-gradient(circle at 85% 15%,#ffffffb3 0 18px,transparent 19px),radial-gradient(circle at 70% 80%,#ffffff80 0 14px,transparent 15px);background-size:220px 220px;opacity:.8}
#lockScreen{position:fixed;inset:0;z-index:99;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(160deg,#FFF7D6,#FFD6E7,#D9F2FF);text-align:center;overflow:auto}.lock-card{background:#ffffffeb;border:4px solid #fff;border-radius:32px;padding:28px 22px;width:min(92vw,420px);box-shadow:0 18px 40px #ff8fab40;max-height:100%;overflow:auto}.lock-card h1{font-size:24px;margin:0 0 8px;line-height:1.35}.lock-card p{font-size:14px;margin:0 0 20px;color:#7a6b86;line-height:1.6}input{width:100%;padding:14px 16px;border-radius:18px;border:3px solid var(--yellow);font-size:18px;text-align:center;background:#fff;color:var(--text)}button{border:none;border-radius:999px;padding:14px 22px;font-size:16px;font-weight:700;color:#5A3D2B;background:linear-gradient(135deg,#FFD93D,#FFB84D);box-shadow:0 8px 0 #E8A72E;margin-top:14px;cursor:pointer;transition:.15s}button:active{transform:translateY(4px);box-shadow:0 4px 0 #E8A72E}button:focus-visible,input:focus-visible{outline:3px solid #7254b0;outline-offset:4px}button:disabled{cursor:default;opacity:.7}.error{color:#b93250;font-size:14px;min-height:20px;margin-top:10px}
#main{position:relative;z-index:1;padding:18px 14px 60px;max-width:520px;margin:0 auto}.section{background:#ffffffd9;border:3px solid #fff;border-radius:28px;padding:20px 16px;margin:16px 0;box-shadow:0 10px 24px #6ec6ff2e;backdrop-filter:blur(6px)}.hero{text-align:center;padding-top:28px}.hero h1{font-size:28px;line-height:1.25;margin:0 0 10px}.sub{font-size:15px;color:#7a6b86}.emoji{font-size:38px}.timer-box{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:12px}.timer-item{background:#fff;border-radius:18px;padding:10px;min-width:64px;box-shadow:0 6px 0 #ffd93d59}.timer-num{font-size:22px;font-weight:800;color:#E85D75}.timer-label{font-size:12px;color:#73637f}h2{font-size:20px;margin:0 0 12px}.timeline-item{display:flex;gap:12px;margin:14px 0}.dot{width:14px;height:14px;border-radius:50%;background:var(--pink);margin-top:5px;flex:0 0 auto;box-shadow:0 0 0 5px #ff8fab33}.blue{background:var(--blue)}.green{background:var(--green)}.timeline-text{font-size:14px;line-height:1.6;color:#5f5269}.photo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.photo-card{aspect-ratio:1/1;border-radius:20px;background:linear-gradient(135deg,#FFF3B0,#FFD6E7);display:flex;align-items:center;justify-content:center;text-align:center;padding:12px;font-size:13px;color:#795c6a;border:3px dashed #fff}.photo-card img{width:100%;height:100%;object-fit:cover;border-radius:16px}.chat{display:flex;flex-direction:column;gap:10px}.bubble{max-width:85%;padding:12px 14px;border-radius:20px;font-size:14px;line-height:1.5}.left{background:#fff;align-self:flex-start;border-bottom-left-radius:6px}.right{background:var(--yellow);align-self:flex-end;border-bottom-right-radius:6px}.wish-card{background:linear-gradient(135deg,#fff,#FFF7D6);border-left:6px solid var(--pink);border-radius:18px;padding:14px;margin:10px 0;font-size:14px;line-height:1.6}.candle-area{text-align:center}.cake{font-size:80px;line-height:1;margin:10px 0}.letter{font-size:15px;line-height:1.9;color:#5f5269;white-space:pre-wrap}footer{text-align:center;font-size:13px;color:#73637f;margin-top:20px}.note{font-size:13px;color:#73637f;margin:12px 0 0;line-height:1.6}.birthday-message{font-size:20px;font-weight:800;color:#b93250;padding:10px;text-align:center}#candleMsg{font-size:15px;color:#b93250;min-height:24px}#musicBtn{position:fixed;right:14px;top:14px;z-index:50;width:48px;height:48px;border-radius:50%;padding:0;font-size:22px;display:flex;align-items:center;justify-content:center}.heart{position:fixed;z-index:40;font-size:22px;pointer-events:none;animation:floatUp 3s linear forwards}@keyframes floatUp{0%{transform:translateY(0) scale(.8);opacity:1}100%{transform:translateY(-120vh) scale(1.3);opacity:0}}@media(min-width:500px){.hero h1{font-size:34px}}@media(prefers-reduced-motion:reduce){.heart{display:none}button{transition:none}}
#main:focus{outline:none}