*{margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI','Microsoft YaHei',sans-serif}body{min-height:100vh;overflow-x:hidden;background:#0a0a0a}.countdown-page{position:fixed;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%,#6B46C1 200%);color:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:1000}.countdown-title{font-size:3.5rem;margin-bottom:20px;text-align:center;text-shadow:0 0 30px rgba(147,112,219,.8);background:linear-gradient(to right,#DDA0DD,#9370DB,#8A2BE2);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800;letter-spacing:2px;animation:titleGlow 3s infinite alternate}@media (max-width:768px){.countdown-title{font-size:2.2rem}}.countdown-subtitle{font-size:1.2rem;opacity:.9;margin-bottom:50px;text-align:center;color:#E6E6FA}.countdown-container{display:flex;gap:25px;margin-bottom:60px;perspective:1000px}.countdown-box{display:flex;flex-direction:column;align-items:center;position:relative;transform-style:preserve-3d;animation:float 6s ease-in-out infinite;animation-delay:calc(var(--i)*1s)}.countdown-value{font-size:4.5rem;font-weight:800;background:rgba(255,255,255,.08);border-radius:20px;width:160px;height:160px;display:flex;justify-content:center;align-items:center;margin-bottom:15px;box-shadow:0 20px 40px rgba(0,0,0,.4),inset 0 0 30px rgba(147,112,219,.3),0 0 0 2px rgba(147,112,219,.2);border:3px solid rgba(147,112,219,.4);position:relative;overflow:hidden;backdrop-filter:blur(10px)}.countdown-value:before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent,rgba(147,112,219,.2),transparent);transform:rotate(45deg);animation:shine 3s infinite}.countdown-value:after{content:'';position:absolute;inset:2px;background:linear-gradient(45deg,transparent,rgba(255,255,255,.05),transparent);border-radius:18px}.countdown-label{font-size:1.3rem;opacity:.9;letter-spacing:1px;color:#D8BFD8;margin-top:10px;font-weight:600}@media (max-width:768px){.countdown-container{gap:15px}.countdown-value{width:90px;height:90px;font-size:2.5rem}.countdown-label{font-size:1rem}}.unlock-button{background:linear-gradient(45deg,#9b59b6,#8e44ad);color:#fff;border:none;padding:20px 70px;font-size:1.5rem;border-radius:60px;cursor:pointer;font-weight:600;box-shadow:0 15px 35px rgba(155,89,182,.4),0 0 0 1px rgba(255,255,255,.1);transition:all .5s;position:relative;overflow:hidden;letter-spacing:1.5px;text-transform:uppercase}.unlock-button:before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:.8s}.unlock-button:hover{transform:translateY(-8px) scale(1.08);box-shadow:0 25px 50px rgba(155,89,182,.6),0 0 0 2px rgba(255,255,255,.2)}.unlock-button:hover:before{left:100%}.unlock-button.disabled{background:linear-gradient(45deg,#666,#555);cursor:not-allowed;box-shadow:none}.unlock-button.disabled:hover{transform:none;box-shadow:none}.unlock-button i{margin-right:12px}.main-content{display:none;width:100%;min-height:100vh;padding:0;background:#0a0a0a}.main-content.active{display:block}.envelope-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;position:relative}.envelope-wrapper:before{content:'';position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 20% 30%,rgba(147,112,219,0.15) 0,transparent 50%),radial-gradient(circle at 80% 80%,rgba(147,112,219,0.15) 0,transparent 50%);z-index:-1}.envelope-container{background:linear-gradient(145deg,rgba(255,255,255,0.08),rgba(255,255,255,0.03));border-radius:25px;padding:70px 60px;max-width:950px;width:100%;position:relative;overflow:hidden;backdrop-filter:blur(15px);border:1px solid rgba(147,112,219,0.2);box-shadow:0 30px 60px rgba(0,0,0,0.6),inset 0 1px 0 rgba(255,255,255,0.1)}.envelope-container:before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(45deg,transparent,rgba(147,112,219,0.05),transparent);z-index:-1}.envelope-header{text-align:center;margin-bottom:50px;padding-bottom:40px;border-bottom:3px solid rgba(147,112,219,0.3);position:relative}.envelope-header:after{content:'';position:absolute;bottom:-3px;left:50%;transform:translateX(-50%);width:150px;height:3px;background:linear-gradient(to right,transparent,#9b59b6,transparent)}.envelope-title{color:#fff;font-size:3.5rem;margin-bottom:20px;font-weight:800;text-shadow:0 5px 25px rgba(0,0,0,0.5);letter-spacing:2px;background:linear-gradient(to right,#E6E6FA,#DDA0DD);-webkit-background-clip:text;background-clip:text;color:transparent}.envelope-subtitle{color:#D8BFD8;font-size:1.4rem;letter-spacing:1px;font-weight:300}.envelope-body{line-height:2;font-size:1.3rem;margin-bottom:60px;color:#F0E6FF;text-align:justify;padding:0 20px}.envelope-body p{margin-bottom:30px}.envelope-body img{max-width:100%;border-radius:10px;margin:20px 0}.envelope-body h1,.envelope-body h2,.envelope-body h3{color:#D8BFD8;margin:30px 0 20px}.envelope-body ul,.envelope-body ol{margin-left:30px;margin-bottom:25px}.envelope-footer{text-align:center;margin-top:60px}.open-button{background:linear-gradient(45deg,#9d50bb,#6e48aa);color:#fff;border:none;padding:22px 80px;font-size:1.6rem;border-radius:60px;cursor:pointer;font-weight:600;box-shadow:0 15px 40px rgba(157,80,187,0.5),0 0 0 1px rgba(255,255,255,0.1);transition:all .5s;position:relative;overflow:hidden}.open-button:before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:.8s}.open-button:hover{transform:translateY(-8px) scale(1.08);box-shadow:0 25px 60px rgba(157,80,187,0.7),0 0 0 2px rgba(255,255,255,.2)}.open-button:hover:before{left:100%}.open-button i{margin-right:15px;font-size:1.8rem}.envelope-seal{position:absolute;top:-40px;right:40px;width:100px;height:100px;background:linear-gradient(45deg,#9b59b6,#8e44ad);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 15px 35px rgba(155,89,182,0.5);z-index:2;border:3px solid rgba(255,255,255,0.2);animation:sealPulse 2s infinite}.envelope-seal i{color:#fff;font-size:2.5rem}.footer{text-align:center;padding:40px;color:#aaa;font-size:1rem;margin-top:auto;background:rgba(0,0,0,0.4);border-top:1px solid rgba(147,112,219,0.2)}@keyframes titleGlow{0%{text-shadow:0 0 20px rgba(147,112,219,.5)}100%{text-shadow:0 0 40px rgba(147,112,219,.8),0 0 60px rgba(147,112,219,.4)}}@keyframes float{0%,100%{transform:translateY(0) rotateX(0)}50%{transform:translateY(-20px) rotateX(5deg)}}@keyframes shine{0%{transform:rotate(45deg) translateX(-100%)}100%{transform:rotate(45deg) translateX(100%)}}@keyframes sealPulse{0%,100%{transform:scale(1);box-shadow:0 15px 35px rgba(155,89,182,0.5)}50%{transform:scale(1.05);box-shadow:0 20px 45px rgba(155,89,182,0.7)}}.stars{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:-1}.star{position:absolute;background:#fff;border-radius:50%;animation:twinkle 5s infinite}.star:nth-child(1){top:20%;left:10%;width:2px;height:2px}.star:nth-child(2){top:40%;left:80%;width:3px;height:3px;animation-delay:1s}.star:nth-child(3){top:70%;left:30%;width:1px;height:1px;animation-delay:2s}.star:nth-child(4){top:10%;left:60%;width:2px;height:2px;animation-delay:3s}.star:nth-child(5){top:85%;left:70%;width:3px;height:3px;animation-delay:4s}.star:nth-child(6){top:60%;left:20%;width:2px;height:2px;animation-delay:5s}@keyframes twinkle{0%,100%{opacity:.3;transform:scale(1)}50%{opacity:1;transform:scale(1.2)}}.location-link-container{margin-top:40px;text-align:center}.location-link-button{display:inline-flex;align-items:center;gap:12px;background:linear-gradient(45deg,#3498db,#2980b9);color:#fff;border:none;padding:16px 40px;font-size:1.2rem;border-radius:50px;cursor:pointer;text-decoration:none;transition:all .4s;box-shadow:0 10px 25px rgba(52,152,219,0.3)}.location-link-button:hover{transform:translateY(-5px);box-shadow:0 15px 35px rgba(52,152,219,0.5);color:#fff}.location-link-button i{font-size:1.4rem}