:root{--shared-paper:#fffefa;--shared-ink:#19334a;--shared-soft:#61727c;--shared-coral:#dd6755;--shared-gold:#c9a25a;--shared-line:#dbe3e4;--shared-serif:"Songti SC","STSong","Noto Serif CJK SC",serif}
[hidden]{display:none!important}
body{background:radial-gradient(circle at 76% 8%,#c9a25a1f,transparent 25%),linear-gradient(180deg,#fffdf9,#eef4f2);color:var(--shared-ink)}
.shared-shell{min-height:100vh;padding-bottom:80px}
.shared-topbar{width:min(1160px,calc(100% - 40px));height:82px;margin:auto;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #19334a12}
.shared-topbar>a:last-child{min-height:44px;color:var(--shared-soft);display:flex;align-items:center;font-size:13px}
.shared-brand{display:flex;align-items:center;gap:12px;font-family:var(--shared-serif);font-size:21px;letter-spacing:.08em}
.shared-brand>span{width:40px;height:40px;border:1px solid var(--shared-coral);border-radius:50%;display:grid;place-items:center;color:var(--shared-coral)}
.shared-main{width:min(980px,calc(100% - 40px));margin:0 auto}
.shared-heading{text-align:center;padding:74px 0 38px}
.shared-heading>span,.panel-copy>span,.opened-heading>span{color:#a87835;font-size:12px;font-weight:700;letter-spacing:.2em}
.shared-heading h1{font-family:var(--shared-serif);font-size:clamp(42px,6vw,68px);line-height:1.3;letter-spacing:.04em;margin:18px 0 20px}
.shared-heading p{max-width:680px;margin:auto;color:var(--shared-soft);font-size:16px;line-height:1.9}
.local-boundary{border:1px solid #ead8b4;background:#fff9ec;border-radius:12px;padding:16px 20px;color:#7c633e;font-size:13px;line-height:1.8}
.shared-progress{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:34px 0;padding:0;list-style:none}
.shared-progress li{min-height:72px;border:1px solid var(--shared-line);background:#ffffffb8;border-radius:10px;display:grid;place-content:center;text-align:center;color:#879399;font-size:11px;gap:4px;transition:.2s}
.shared-progress li span{font-family:var(--shared-serif);font-size:16px;color:#aab2b5}
.shared-progress li.is-active{border-color:#d7b46f;background:#fffaf0;color:var(--shared-ink);box-shadow:0 12px 30px #19334a10}
.shared-progress li.is-active span,.shared-progress li.is-done span{color:var(--shared-coral)}
.shared-progress li.is-done{color:#55735f;background:#f2f7f3}
.shared-panel{scroll-margin-top:28px;border:1px solid #19334a16;background:linear-gradient(145deg,#ffffffed,#fffefa);border-radius:18px;display:grid;grid-template-columns:.8fr 1.2fr;gap:54px;padding:48px;box-shadow:0 22px 70px #19334a12}
.panel-copy h2,.opened-heading h2{font-family:var(--shared-serif);font-size:clamp(30px,4vw,44px);line-height:1.42;margin:14px 0 18px;font-weight:600}
.panel-copy p,.opened-heading p{color:var(--shared-soft);font-size:14px;line-height:1.85;margin:0}
.panel-copy.centered{text-align:center;grid-column:1/-1}
.shared-form{display:grid;gap:20px}
.shared-form label,.reply-grid label{display:grid;gap:9px;font-size:12px;font-weight:600;color:#334d5e}
.shared-form input,.shared-form select,.shared-form textarea,.reply-grid textarea{width:100%;border:1px solid var(--shared-line);background:#fff;border-radius:7px;padding:0 14px;color:var(--shared-ink);font-size:14px}
.shared-form input,.shared-form select{height:50px}
.shared-form textarea,.reply-grid textarea{min-height:300px;padding:16px;line-height:1.9;resize:vertical}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field-count{text-align:right;color:#879399;font-weight:400}
.shared-price-card,.final-price-card{border:1px solid #e4d1aa;background:#fff9ec;border-radius:10px;padding:18px;display:grid;gap:6px}
.shared-price-card span,.final-price-card span{font-size:11px;color:#78694e}
.shared-price-card strong,.final-price-card strong{font-family:var(--shared-serif);font-size:20px;color:#a85d37}
.shared-price-card small,.final-price-card small{font-size:11px;color:#7c858a;line-height:1.6}
.shared-primary,.shared-secondary,.shared-text{min-height:52px;border-radius:8px;padding:0 20px;cursor:pointer;font-weight:600;transition:.18s}
.shared-primary{border:0;background:linear-gradient(135deg,var(--shared-coral),#ed795f);color:#fff;box-shadow:0 13px 30px #dd675535}
.shared-primary:hover{transform:translateY(-2px);box-shadow:0 17px 36px #dd67554a}
.shared-primary:disabled{cursor:not-allowed;opacity:.5;transform:none;box-shadow:none}
.shared-secondary{border:1px solid #c9a25a;background:#fff;color:#5f513d}
.shared-text{border:0;background:transparent;color:#956b38}
.private-form{border-left:2px solid #d9c28e;padding-left:28px}
.invite-preview{min-height:300px;border:1px solid #dfceb0;border-radius:16px;background:radial-gradient(circle at 86% 12%,#c9a25a35,transparent 30%),linear-gradient(145deg,#fffefa,#eef4f2);display:grid;place-content:center;justify-items:center;text-align:center;gap:14px;padding:30px}
.invite-seal,.success-orbit{width:68px;height:68px;border:1px solid var(--shared-coral);border-radius:50%;display:grid;place-items:center;color:var(--shared-coral);font-family:var(--shared-serif);font-size:25px}
.invite-preview strong{font-family:var(--shared-serif);font-size:27px}
.invite-preview small{color:var(--shared-soft)}
.invite-preview em{color:#939b9e;font-style:normal;font-size:10px;letter-spacing:.12em}
.button-stack{display:grid;gap:12px}
.completion-list{display:grid;gap:12px}
.completion-list>div{border-radius:9px;background:#f1f6f2;padding:16px 18px;display:flex;justify-content:space-between;color:#4c6957;font-size:13px}
.price-confirm{grid-column:1/-1;display:flex;align-items:center;gap:10px;color:var(--shared-soft);font-size:13px}
.price-confirm input{width:18px;height:18px;accent-color:#6f8a6c}
.sealed-panel{grid-template-columns:1fr;justify-items:center;text-align:center}
.success-orbit{background:#5e7c67;border:0;color:#fff;font-family:inherit;font-size:28px;box-shadow:0 16px 36px #5e7c6735}
.sealed-actions{display:grid;justify-items:center;gap:12px}
.sealed-actions small{color:#899399}
.opening-stage{scroll-margin-top:28px;min-height:520px;display:grid;place-content:center;text-align:center;gap:24px}
.time-opening-animation{width:220px;height:220px;border:1px solid #d7bb83;border-radius:50%;display:grid;place-items:center;position:relative;animation:openingPulse 1.6s ease-in-out infinite}
.time-opening-animation span{width:116px;height:116px;border-radius:50%;background:var(--shared-coral);color:#fff;display:grid;place-items:center;font-family:var(--shared-serif);font-size:42px;box-shadow:0 20px 50px #dd67554c}
.time-opening-animation i{position:absolute;inset:12px;border:1px solid #c9a25a66;border-radius:50%;animation:openingRing 1.4s ease-out infinite}
.time-opening-animation i:nth-of-type(2){animation-delay:.34s}.time-opening-animation i:nth-of-type(3){animation-delay:.68s}
.opening-stage p{font-family:var(--shared-serif);font-size:20px;color:#78694e}
.opened-stage{scroll-margin-top:28px;display:grid;gap:34px}
.opened-heading{text-align:center;padding:28px 0 4px}
.past-letter-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.past-letter-grid article{min-height:320px;border:1px solid #e0d9cc;border-radius:14px;background:#fffefa;padding:30px;box-shadow:0 18px 42px #19334a0c}
.past-letter-grid article>span{color:#a87835;font-size:11px;font-weight:700;letter-spacing:.12em}
.past-letter-grid p{white-space:pre-wrap;color:#304b5b;font-family:var(--shared-serif);font-size:16px;line-height:2;margin:22px 0 0}
.now-reply-panel,.keepsake-panel-v27{border:1px solid #19334a16;border-radius:16px;background:#ffffffd9;padding:34px}
.now-reply-panel h3,.keepsake-panel-v27 h3{font-family:var(--shared-serif);font-size:26px;margin:0 0 22px}
.reply-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.reply-grid textarea{min-height:190px;margin-top:8px}
.now-reply-panel>small{display:block;color:#829096;margin-top:14px}
.keepsake-panel-v27{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px}
.keepsake-panel-v27 p{color:var(--shared-soft);font-size:13px;line-height:1.7}
.keepsake-panel-v27>div:first-child>span{color:#a87835;font-size:11px;letter-spacing:.15em}
.media-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.media-grid label{border:1px dashed #c9a25a;background:#fffaf0;border-radius:10px;min-height:90px;padding:16px;display:grid;place-content:center;gap:5px;cursor:pointer;font-size:12px;text-align:center}
.media-grid input{position:absolute;opacity:0;pointer-events:none}
.media-grid span{color:#899399;font-size:10px;max-width:160px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.keepsake-actions{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.next-promise{justify-self:center;min-width:300px}
.shared-status{min-height:24px;text-align:center;color:#52755e;margin:24px 0 0;font-size:13px}
.shared-status.is-error{color:#b24639}
.shared-footer{display:flex;justify-content:center;align-items:center;gap:24px;margin-top:28px;color:var(--shared-soft);font-size:12px}
.shared-footer .danger{color:#a24a40}
@keyframes openingPulse{0%,100%{transform:scale(.97)}50%{transform:scale(1.04)}}
@keyframes openingRing{0%{opacity:.7;transform:scale(.55)}100%{opacity:0;transform:scale(1.45)}}
@media (max-width:760px){.shared-main{width:min(100% - 28px,620px)}.shared-heading{padding-top:52px}.shared-progress{gap:6px}.shared-progress li{min-height:58px;font-size:9px}.shared-progress li span{font-size:13px}.shared-panel{grid-template-columns:1fr;gap:30px;padding:26px 20px}.form-grid,.past-letter-grid,.reply-grid,.keepsake-panel-v27,.media-grid{grid-template-columns:1fr}.past-letter-grid article{min-height:220px;padding:24px 20px}.private-form{border-left:0;border-top:2px solid #d9c28e;padding:24px 0 0}.keepsake-actions{grid-template-columns:1fr}.shared-heading h1 br{display:none}}
@media print{.shared-topbar,.shared-heading,.local-boundary,.shared-progress,.shared-footer,.shared-status,.keepsake-actions,.next-promise{display:none!important}.shared-shell{padding:0}.shared-main{width:100%}.opened-stage{display:grid!important}.past-letter-grid{break-inside:avoid}.now-reply-panel,.keepsake-panel-v27{break-inside:avoid}}
@media (prefers-reduced-motion:reduce){.time-opening-animation,.time-opening-animation i,.shared-primary{animation:none!important;transition:none!important}}