:root{--green-0: #f6ffed;--green-1: #d9f7be;--green-2: #b7eb8f;--green-3: #95de64;--green-4: #73d13d;--green-5: #52c41a;--green-6: #389e0d;--green-7: #237804;--green-8: #135200;--green-9: #092b00}body{background:radial-gradient(1200px 800px at 20% 20%,var(--green-1),transparent 60%),radial-gradient(1000px 700px at 85% 15%,var(--green-2),transparent 55%),linear-gradient(180deg,var(--green-0),var(--green-1) 40%,var(--green-0));background-attachment:fixed;min-height:100vh}body .container{padding:20px}.sakura-container{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1000;overflow:hidden}.falling-item{position:absolute;top:-50px;width:20px;height:20px;animation-timing-function:linear;animation-iteration-count:1;animation-fill-mode:forwards;pointer-events:none;display:flex;align-items:center;justify-content:center}.falling-item svg{width:100%;height:100%;filter:drop-shadow(0 2px 4px rgba(0,0,0,.2))}.sakura-petal svg{filter:drop-shadow(0 0 3px 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var(--green-4)}.tet-tip{background:linear-gradient(135deg,var(--green-1),var(--green-0));border-left:4px solid var(--green-5);padding:15px 20px;margin-top:20px;font-size:15px;line-height:1.7;color:var(--green-8);border-radius:8px}.tet-error{text-align:center;padding:40px 20px;color:var(--green-7);background:linear-gradient(135deg,var(--green-1),var(--green-0));border-radius:12px;border:1px solid var(--green-3)}@media(max-width:640px){.tet-countdown-card{padding:30px 20px}.tet-year-title{font-size:24px}.countdown-value{font-size:42px}.countdown-label{font-size:14px}.countdown-separator{font-size:36px}.countdown-item{min-width:80px}.tet-celebration-title{font-size:28px}.tet-celebration-message{font-size:18px}.tet-content-card{padding:25px 20px}.tet-content-title{font-size:22px}.tet-intro-text{padding:25px 20px}.tet-intro-text p{font-size:16px}.tet-info-label{min-width:140px;font-size:14px}.tet-milestone-item{flex-direction:column;gap:10px}.tet-milestone-title{font-size:18px}.tet-milestone-label{min-width:90px;font-size:14px}.tet-mung-label{min-width:120px;font-size:14px}.tet-holiday-range{font-size:16px;padding:12px 15px}.tet-faq-question{font-size:17px}.tet-conclusion-text,.tet-final-wish{font-size:16px}}