:root{color-scheme:light;--ink:#30372c;--muted:#6c715f;--olive:#626c49;--paper:#efeddf;--line:#cccebb}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.7 system-ui,"Microsoft YaHei",sans-serif}a{color:inherit}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #73844e;outline-offset:4px}.skip{position:absolute;top:-80px;left:15px;padding:10px;background:#fff;z-index:10}.skip:focus{top:10px}header,main,footer{max-width:980px;margin:auto;padding-inline:32px}header{height:100px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{text-decoration:none;display:flex;gap:12px;align-items:center;font-size:16px;font-weight:650}.brand small{display:block;font:10px/1.5 ui-monospace,monospace;letter-spacing:1px;color:var(--muted);margin-top:1px;font-weight:400}.mark{width:35px;height:39px;display:grid;place-items:center;background:var(--ink);color:#e5dec0;border-top:3px solid #b5ab6e;font:23px/1 Georgia,serif}.help-link{font-size:12px;text-underline-offset:5px;padding:12px 0;min-height:44px}.help-link span{margin-left:12px}.intro{padding-block:45px 30px}.eyebrow{font:10px/1.5 ui-monospace,monospace;letter-spacing:2px;color:var(--muted)}.intro-line{display:flex;gap:18px;align-items:center;margin:8px 0 13px}h1{font-size:35px;font-weight:650;letter-spacing:-1px;line-height:1.25;margin:0}.availability{font-size:11px;white-space:nowrap;color:#586446;background:#e2e6d4;padding:3px 9px;border:1px solid #bbc4a6;border-radius:2px}.intro p{color:var(--muted);margin:0;font-size:14px}.mobile-break{display:none}.gifts{border-top:2px solid #737b5a}.gift{display:grid;grid-template-columns:35px minmax(0,1fr) 198px;gap:17px;align-items:center;padding:24px 5px;border-bottom:1px solid var(--line)}.number{font:12px ui-monospace,monospace;color:#8d927c;align-self:start;padding-top:4px}.reward h2{font-size:17px;line-height:1.5;font-weight:600;margin:0 0 5px}.reward p{margin:0;max-width:390px;font-size:12px;color:var(--muted);line-height:1.7}.claim{border-left:1px solid var(--line);padding-left:20px}code{font:16px/1.5 ui-monospace,"Microsoft YaHei",monospace;letter-spacing:1px;white-space:nowrap}button{cursor:pointer;border:1px solid #737c59;background:#4c593f;color:#faf7e6;min-height:44px;padding:9px 14px;font-size:12px;border-radius:2px}button:hover{background:#3a472f}button:active{transform:translateY(1px)}.claim button{display:block;width:100%;margin-top:8px;text-align:left}.claim button span{float:right}.instructions{padding-block:32px 30px;display:grid;grid-template-columns:1fr 1fr;gap:8px 35px}.instructions h2{font-size:19px;font-weight:500;line-height:1.7;margin:8px 0}.instructions ol{margin:0;padding-left:20px;font-size:13px;line-height:2.2}.note{grid-column:1/-1;margin:18px 0 0;padding-top:18px;border-top:1px dashed var(--line);font-size:12px;color:var(--muted)}footer{padding-block:18px 24px;display:flex;justify-content:space-between;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}#copy-status{position:fixed;bottom:max(24px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:#303c29;color:#f7f3dd;max-width:calc(100% - 32px);padding:10px 18px;box-shadow:0 3px 15px #26301e20;border:1px solid #65734e;font-size:13px;border-radius:2px;pointer-events:none}#copy-status:empty{display:none}dialog{border:1px solid #8c9578;background:#f3f0df;color:var(--ink);max-width:calc(100% - 32px);width:360px;padding:24px}dialog::backdrop{background:#19201599}dialog h2{font-size:20px;margin:0 0 12px}dialog p,dialog label{font-size:13px}dialog label{display:block;margin-top:16px}dialog input{width:100%;margin:5px 0 18px;padding:10px;border:1px solid #929b80;background:#fffef4;color:var(--ink)}dialog button{width:100%}@media(max-width:600px){header,main,footer{padding-inline:20px}header{height:82px}.intro{padding-block:30px 23px}h1{font-size:29px}.intro-line{gap:12px}.intro p{font-size:13px}.mobile-break{display:block}.gift{grid-template-columns:25px minmax(0,1fr);padding:21px 0;gap:6px 10px}.number{font-size:11px}.reward h2{font-size:16px}.claim{grid-column:2;border-left:0;padding:8px 0 0;display:flex;gap:12px;align-items:center;justify-content:space-between}.claim code{font-size:15px}.claim button{display:inline-flex;justify-content:space-between;gap:18px;width:auto;min-width:125px;margin:0}.reward p{font-size:12px}.instructions{grid-template-columns:1fr;gap:13px;padding-top:27px}.instructions h2{font-size:18px;margin-bottom:0}.instructions ol{font-size:12px}.note{margin-top:3px}footer{font-size:10px;gap:12px}.availability{font-size:10px;padding:2px 7px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}button:active{transform:none}}