:root{--paper:#f7f3ed;--ink:#302e2a;--muted:#8d877e;--line:#e7e0d6;--red:#bd332c;--red-dark:#97271f;--gold:#f3d7a3;--serif:Georgia,'Songti SC','STSong',serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a{color:inherit;text-decoration:none}.hidden{display:none!important}.shell{width:min(100% - 48px,440px);margin:auto}.demo-bar{min-height:35px;display:flex;justify-content:center;align-items:center;gap:24px;padding:8px 14px;background:#ebe5db;font-size:10px;letter-spacing:.3px;color:#766d61}.demo-bar span{display:flex;align-items:center;gap:6px}.demo-bar i{width:5px;height:5px;border-radius:50%;background:#ba7d42}.demo-bar button{background:none;border:0;font-size:11px;color:#7e4934;padding:2px}.brand-header{display:flex;align-items:center;justify-content:space-between;padding:28px 0 24px}.brand{display:flex;gap:11px;align-items:center;font-size:15px;font-weight:650;letter-spacing:1px}.brand-mark{width:35px;height:35px;border:1px solid #b33028;border-radius:10px 3px 10px 3px;display:grid;place-items:center;color:var(--red);font:700 19px var(--serif);letter-spacing:-1px}.brand small{display:block;font-size:7px;font-weight:500;color:#999084;letter-spacing:1.5px;margin-top:5px}.icon-button{border:1px solid #d9d1c6;border-radius:50%;width:29px;height:29px;background:transparent;color:#8b8175;font-family:var(--serif);font-size:16px;display:grid;place-items:center}.intro{padding:18px 0 25px}.eyebrow{font-size:10px;letter-spacing:2px;color:#a18565;display:flex;align-items:center;gap:7px}.eyebrow>span{display:inline-block;width:15px;height:1px;background:#ab8e6d}h1{font-family:var(--serif);font-size:35px;line-height:1.45;font-weight:500;letter-spacing:2px;margin:13px 0 10px}p{line-height:1.8}.intro>p{font-size:12px;color:var(--muted);letter-spacing:.5px;margin:0}.envelope{position:relative;overflow:hidden;isolation:isolate;background:linear-gradient(145deg,#ca4438,#b33029 60%,#a72b25);border-radius:17px;color:#fae7ce;box-shadow:0 14px 30px -17px #9e291b80, inset 0 0 0 1px #e6835e60;min-height:354px}.envelope-art{position:absolute;inset:0;z-index:-1;opacity:.13;color:#ffdc9d;pointer-events:none}.envelope-art svg{width:100%;height:100%;object-fit:cover}.envelope-top{padding:25px 24px;display:flex;gap:9px;align-items:center;font-size:12px;letter-spacing:.5px}.sender-seal{width:30px;height:30px;border:1px solid #efc59480;display:grid;place-items:center;border-radius:50%;font:16px var(--serif);background:#e2a7771a}.sender-sub{display:block;font-size:9px;opacity:.6;margin-top:4px}.packet-badge{margin-left:auto;font-size:9px;letter-spacing:1px;border:1px solid #f0d7b040;border-radius:20px;padding:5px 9px;color:#f1d0a4}.envelope-content{text-align:center;padding:1px 20px;min-height:86px}.envelope-content>p:first-child{font:23px/1.6 var(--serif);letter-spacing:1px;margin:9px 0;word-break:break-word}.gift-caption{font-size:10px;letter-spacing:2px;opacity:.6}.open-zone{display:flex;align-items:center;flex-direction:column;padding:22px 0 24px}.open-button{position:relative;border-radius:50%;width:80px;height:80px;border:1px solid #fbe8bf;background:linear-gradient(145deg,#fae6c0,#edcb8e);box-shadow:0 5px 0 #d6ac69,0 12px 25px #6e160333;color:#873123;font:34px var(--serif);transition:transform .2s,box-shadow .2s}.open-button:before{content:'';position:absolute;inset:5px;border:1px solid #b88b4f55;border-radius:50%}.open-button:not(:disabled):hover{transform:translateY(-3px);box-shadow:0 8px 0 #d6ac69,0 15px 25px #6e160333}.open-button:not(:disabled):active{transform:translateY(3px);box-shadow:0 2px 0 #d6ac69}.open-button:disabled{opacity:.7}.open-hint{font-size:10px;letter-spacing:1px;margin-top:16px;opacity:.7}.envelope-foot{display:flex;justify-content:space-between;border-top:1px solid #e88c6940;background:#8c1a1719;padding:13px 24px;font-size:10px;letter-spacing:.7px;color:#efcbb4}.wallet-card{display:flex;align-items:center;gap:11px;margin:21px 0 30px;padding:16px 0;border-bottom:1px solid var(--line)}.wallet-icon{width:34px;height:34px;display:grid;place-items:center;background:#e8e5d9;border-radius:10px;font-size:21px;color:#77785f}.wallet-card strong{font-size:12px;font-weight:550}.wallet-card p{font-size:10px;color:var(--muted);margin:4px 0 0}.wallet-card a{font-size:10px;margin-left:auto;white-space:nowrap;color:#8e775a}.wallet-card a span{margin-left:5px}.section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.section-heading h2{font-size:13px;margin:0;font-weight:550;letter-spacing:1px}.section-heading>span{font-size:9px;color:#a69d91}.rule-row{display:flex;align-items:flex-start;gap:13px;margin-bottom:18px}.rule-number{font:italic 14px var(--serif);color:#b49e82;line-height:22px}.rule-row strong{font-size:11px;font-weight:500}.rule-row p{font-size:10px;color:var(--muted);margin:4px 0 0;line-height:1.9}.footer{margin-top:28px;border-top:1px solid var(--line);padding:20px 0 30px;display:flex;justify-content:space-between;align-items:center;color:#b1a798;font-size:8px;letter-spacing:1px}.footer>span:first-child{font-size:8px;letter-spacing:2px}.captcha-wrap{margin-top:20px;display:flex;align-items:center;flex-direction:column;gap:12px;font-size:11px;color:var(--muted)}.message{margin:17px 0 0;padding:12px 15px;border:1px solid #d8c4a6;background:#f0e6d7;border-radius:9px;color:#8b5d3f;font-size:12px;line-height:1.8}.result{margin-top:13px;font-family:var(--serif);color:#ffe3a7}.result>span{font-size:43px;line-height:1.2;letter-spacing:1px}.result small{font:11px -apple-system,sans-serif;margin-left:8px;letter-spacing:1px}.result-state{font-size:11px!important;opacity:.85;margin:6px 0!important}.envelope.received .open-zone{padding:10px 0 15px}.envelope.received .open-button{width:52px;height:52px;font-size:22px}.envelope.received .envelope-content{min-height:135px}.envelope.received .envelope-content>p:first-child{font-size:18px}.envelope.received .open-hint{margin-top:13px}.custom-cover{position:absolute;inset:0;z-index:-1}.custom-cover:after{content:'';position:absolute;inset:0;background:linear-gradient(#4b130d66,#63190ec9)}.custom-cover img{width:100%;height:100%;object-fit:cover}dialog{border:1px solid var(--line);border-radius:18px;background:var(--paper);color:var(--ink);width:min(440px,calc(100% - 24px));max-height:90dvh;overflow:auto;padding:25px;box-shadow:0 25px 100px #37210d30}dialog::backdrop{background:#31271966;backdrop-filter:blur(3px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:23px}.dialog-head h2{font:24px var(--serif);margin:8px 0 0}.dialog-head .eyebrow{font-size:8px}.dialog-head .icon-button{font:22px sans-serif}#rules-dialog p{font-size:12px;color:#7d7265;line-height:1.9;margin-bottom:18px}button:focus-visible,a:focus-visible{outline:2px solid #b18b5c;outline-offset:4px}@media(min-width:760px){body{background:radial-gradient(ellipse at 50% 20%,#fffcf7,var(--paper) 65%)}.shell{padding:0 0 20px}.brand-header{padding-top:36px}.intro{padding-top:22px}h1{font-size:39px}.envelope{min-height:372px}.envelope-content{min-height:97px}.open-zone{padding-top:27px}.footer{margin-top:33px}}@media(max-width:360px){.shell{width:calc(100% - 32px)}h1{font-size:30px}.envelope-top{padding:22px 18px}.envelope-foot{padding:13px 18px}.wallet-card{gap:8px}.wallet-card a{font-size:9px}.demo-bar{gap:10px;font-size:9px}}
/* Preserve the entire greeting while keeping the claim control within reach. */
#greeting{white-space:pre-wrap}
body{margin:0;background:#9a0604;overflow:hidden}
.shell{width:100%;max-width:none;padding:0;min-height:100dvh;height:100dvh;display:grid;place-items:center;background:#9a0604}
#claim-view{position:relative;width:100%;height:100%;display:grid;place-items:center}
.packet{position:relative;width:min(100vw,calc(100dvh * 941 / 1672));height:min(100dvh,calc(100vw * 1672 / 941));aspect-ratio:941/1672}
.packet-art{position:absolute;inset:0;width:100%;height:100%;object-fit:fill;pointer-events:none;user-select:none;-webkit-user-drag:none}
.packet-hit{position:absolute;inset:0;z-index:2;border:0;padding:0;background:transparent}
.packet-hit:disabled{cursor:default}
#custom-cover{display:none!important}
.packet .result{position:absolute;left:50%;top:63%;z-index:3;transform:translateX(-50%);display:flex;justify-content:center;align-items:baseline;gap:6px;padding:8px 18px;border-radius:999px;background:rgba(72,6,4,.62);color:#fff8e8;font-family:Georgia,'Songti SC',serif;pointer-events:none;white-space:nowrap}
.packet .result.hidden{display:none!important}
#result-amount{font-size:40px;font-weight:650;letter-spacing:-1px}
#result-coin{font-size:14px;opacity:.85}
#message{position:absolute;left:24px;right:24px;bottom:16%;z-index:4;margin:0;border:0;border-radius:12px;padding:10px 12px;text-align:center;color:#fff6e8;background:rgba(74,8,6,.78)}
.captcha-wrap{position:absolute;left:0;right:0;bottom:8%;z-index:4;margin:0;display:flex;justify-content:center}

#result-state{position:absolute;top:3%;left:24px;right:24px;z-index:4;text-align:center;color:#fff6e8;background:rgba(74,8,6,.78)}
/* Claim reveal: compositor motion plus a bounded, pointer-transparent particle layer. */
.packet{isolation:isolate}
.packet-art{transition:filter .4s ease}
.packet .result{top:61%;padding:14px 24px 17px;border:1px solid #ffd98f80;border-radius:22px;display:flex;flex-direction:column;align-items:center;gap:8px;box-shadow:0 10px 35px #6e090866,inset 0 1px #fff3bf30;background:linear-gradient(145deg,#84120dec,#530504ed);max-width:94%}
.reveal-title{font:500 13px/1.5 -apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif!important;letter-spacing:2px!important;color:#ffe0a0}
.reveal-value{display:flex;align-items:baseline;justify-content:center;gap:8px}
#result-amount{font-size:clamp(30px,10vw,52px);line-height:1.1;color:#fff1bf;text-shadow:0 2px 14px #ffb53d55}
.opening-glow,.opening-ring{position:absolute;pointer-events:none;opacity:0;z-index:1;left:50%;top:49%}
.opening-glow{width:76%;height:48%;transform:translate(-50%,-50%);background:radial-gradient(ellipse,#fff8ceaa 0,#ffd06455 25%,#ffb62a00 68%);mix-blend-mode:screen}
.opening-ring{width:27%;aspect-ratio:1;border:2px solid #ffe8a3;border-radius:50%;box-shadow:0 0 25px #ffd76b,inset 0 0 20px #ffd76b;transform:translate(-50%,-50%) scale(.85)}
.opening-state{display:none;position:absolute;left:0;right:0;top:66%;z-index:3;text-align:center;color:#fff0bc;font-size:14px;letter-spacing:2px;text-shadow:0 2px 6px #780903}
.is-opening .opening-state{display:block}
.is-opening .opening-glow{animation:gold-breathe 1.1s ease-in-out infinite}
.is-opening .opening-ring{animation:gold-ring 1.1s ease-out infinite}
.is-opening .packet-art{animation:packet-wake .55s ease-in-out;filter:brightness(1.08)}
.reveal-success .opening-glow{animation:gold-arrive .9s ease-out both}
.reveal-success .result{animation:amount-arrive .65s cubic-bezier(.2,.8,.25,1.15) both}
#celebration{position:fixed;inset:0;width:100%;height:100%;z-index:10;pointer-events:none}
#celebration[hidden]{display:none}
@keyframes packet-wake{0%,100%{transform:translateX(0)}25%{transform:translateX(-2px)}55%{transform:translateX(2px)}80%{transform:translateX(-1px)}}
@keyframes gold-breathe{0%,100%{opacity:.35;transform:translate(-50%,-50%) scale(.88)}50%{opacity:1;transform:translate(-50%,-50%) scale(1.1)}}
@keyframes gold-ring{0%{opacity:.9;transform:translate(-50%,-50%) scale(.85)}100%{opacity:0;transform:translate(-50%,-50%) scale(2)}}
@keyframes gold-arrive{0%{opacity:1;transform:translate(-50%,-50%) scale(1)}100%{opacity:0;transform:translate(-50%,-50%) scale(1.8)}}
@keyframes amount-arrive{0%{opacity:0;transform:translate(-50%,15px)}65%{opacity:1;transform:translate(-50%,-3px)}100%{opacity:1;transform:translate(-50%,0)}}
@media(prefers-reduced-motion:reduce){.is-opening .packet-art,.is-opening .opening-glow,.is-opening .opening-ring,.reveal-success .opening-glow,.reveal-success .result{animation:none}.is-opening .opening-glow{opacity:.6}.packet-art{transition:none}}
.membership-panel{position:absolute;left:24px;right:24px;bottom:7%;z-index:5;border:1px solid #f7d39399;border-radius:18px;padding:18px 16px;text-align:center;color:#fff0cb;background:linear-gradient(145deg,#83150df5,#500504f5);box-shadow:0 8px 28px #5b0a0855}
.membership-panel strong{font-size:17px}.membership-panel p{margin:7px 0 13px;font-size:13px;overflow-wrap:anywhere}
.membership-panel button,.membership-panel .membership-join{display:block;width:100%;padding:11px 8px;border:1px solid #f6d492;border-radius:10px;background:linear-gradient(145deg,#ffe8b6,#eab35e);color:#6d180d;font-weight:600;margin-top:8px}
.membership-panel button+button{background:transparent;color:#ffe8b6}
.membership-panel button:disabled,.membership-panel .membership-join[aria-disabled="true"]{opacity:.55;cursor:default}.membership-panel small{display:block;font-size:11px;opacity:.75;margin-top:10px;line-height:1.5}
@media(max-height:600px){.membership-panel{bottom:3%;padding:10px 14px}.membership-panel button{padding:8px}.membership-panel p{margin:4px 0}}

/* Fit the viewport without browser pinch/double-tap zoom or iOS text enlargement. */
html,body{width:100%;height:100%;overflow:hidden;overscroll-behavior:none;touch-action:pan-y;-webkit-text-size-adjust:100%;text-size-adjust:100%}
button{touch-action:pan-y}

#membership-title{white-space:pre-wrap;max-height:22dvh;overflow-y:auto;text-align:left}
.membership-panel{max-height:70dvh;overflow-y:auto}

.membership-panel .membership-retry{width:auto;margin:10px auto 0;padding:3px 6px;background:none;border:0;color:#ffe4af;font-size:12px;font-weight:400;text-decoration:underline;text-underline-offset:3px}

.membership-panel .membership-join{font:600 14px/1.5 -apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif;touch-action:pan-y;cursor:pointer}

.browser-view{min-height:100dvh;width:100%;display:grid;place-items:center;padding:32px;text-align:center;color:#fff1cb}
.browser-view p{max-width:1100px;margin:0;font-size:clamp(30px,4.5vw,64px);line-height:1.65;font-weight:650;overflow-wrap:anywhere}
.browser-view a{color:#ffe09a;white-space:nowrap;text-decoration:underline;text-underline-offset:8px}
body.browser-guest .shell{display:none}
@media(max-width:480px){.browser-view a{display:block}}