:root{color-scheme:dark;--red:#780600;--gold:#f4d89b;--line:rgba(231,193,119,.52)}
*{box-sizing:border-box}html{background:#430603;-webkit-text-size-adjust:100%;text-size-adjust:100%}body{margin:0;color:var(--gold);font-family:"Songti SC","Noto Serif CJK SC","SimSun",serif;font-size:17px;line-height:1.7;background:var(--red)}body.sealed{overflow:hidden}button,a{-webkit-tap-highlight-color:transparent;touch-action:manipulation}button{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:2px solid #fff0c7;outline-offset:5px}[hidden]{display:none!important}
.cover{position:fixed;inset:0;z-index:20;background:var(--red);display:flex;align-items:center;justify-content:center;opacity:1;transition:opacity .8s ease;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}.cover-stage{position:relative;width:100%;max-width:520px}.cover-stage>img{display:block;width:100%;height:auto}.open-hotspot{position:absolute;left:24%;top:73.5%;width:52%;height:9%;min-height:48px;background:transparent;border:0;border-radius:28px}.cover.leaving{opacity:0;pointer-events:none}
.invitation{width:100%;max-width:520px;margin:auto;background:var(--red);opacity:0;transition:opacity .8s ease;outline:none}.invitation.revealed{opacity:1}.main-image{display:block;width:100%;height:auto}.details{padding:20px max(22px,env(safe-area-inset-right)) 0 max(22px,env(safe-area-inset-left));background:linear-gradient(#780600,#650600)}.card{border:1px solid var(--line);outline:1px solid rgba(231,193,119,.17);outline-offset:-6px;padding:30px 18px;margin:0 0 26px;text-align:center;border-radius:3px;background:rgba(65,0,0,.14)}.card p{margin:3px 0}.date{font-size:clamp(22px,6vw,29px);letter-spacing:.06em}.banquet{padding:12px 0 19px}.banquet span{font-size:26px;letter-spacing:.05em;margin-left:8px}.gold-button{display:flex;align-items:center;justify-content:center;gap:9px;min-height:54px;padding:11px 13px;border:1px solid #e0b873;color:#ffe6ad;background:linear-gradient(120deg,rgba(232,186,100,.1),rgba(232,186,100,.02));border-radius:4px;width:100%;font-size:18px;letter-spacing:.06em}.gold-button img{object-fit:contain;flex:none}.gold-button:active{background:rgba(232,186,100,.18)}.map-pin{object-fit:contain;animation:float 1.8s ease-in-out infinite}.venue h1{font-size:24px;font-weight:400;margin:12px 0 0;overflow-wrap:break-word}.venue .hall{margin:12px 0 25px;font-size:20px}footer{text-align:center;padding:10px 0 calc(38px + env(safe-area-inset-bottom))}footer p{font-size:16px;letter-spacing:.15em;margin:10px 0}.double-happiness{font-size:46px;line-height:1.2}
.music-toggle{position:fixed;z-index:25;top:calc(12px + env(safe-area-inset-top));right:max(12px,calc((100vw - 520px)/2 + 12px));width:52px;height:52px;padding:4px;border:0;border-radius:50%;background:rgba(90,0,0,.62)}.music-toggle img{display:block;width:44px;height:44px;object-fit:contain}.music-toggle.playing img{animation:rotate 18s linear infinite}.swipe-hint{position:fixed;z-index:5;bottom:calc(10px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);pointer-events:none;transition:opacity .4s}.swipe-hint img{display:block;width:108px;height:108px;object-fit:contain;animation:float 1.8s ease-in-out infinite}.swipe-hint.dismissed{opacity:0}
.sheet-backdrop{position:fixed;inset:0;z-index:40;background:rgba(26,0,0,.65);display:flex;align-items:flex-end;justify-content:center;padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}.sheet{width:100%;max-width:520px;max-height:90vh;overflow:auto;background:#700900;border:1px solid var(--line);border-bottom:0;border-radius:18px 18px 0 0;padding:18px 20px calc(18px + env(safe-area-inset-bottom));box-shadow:0 -12px 50px #21000066;animation:sheet-in .3s ease-out}.sheet h2{font-size:19px;font-weight:400;text-align:center;margin:0 0 16px}.sheet-action{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;min-height:56px;padding:12px;border:1px solid var(--line);border-radius:5px;background:transparent;margin:10px 0 0;font-size:18px;text-align:center}.sheet-action span{font-size:14px;border:1px solid var(--line);padding:0 7px;border-radius:3px}.cancel{color:var(--gold);border-color:transparent;background:rgba(0,0,0,.14)}.sheet-help{font-family:system-ui,sans-serif;font-size:16px;line-height:1.8;margin:10px 0 22px}.status{position:fixed;z-index:60;left:50%;bottom:calc(25px + env(safe-area-inset-bottom));transform:translateX(-50%);width:max-content;max-width:calc(100% - 36px);margin:0;padding:12px 18px;background:#370703f2;border:1px solid var(--line);border-radius:5px;text-align:center;font:16px/1.6 system-ui,sans-serif}.noscript{position:fixed;z-index:80;bottom:0;background:#430603;padding:16px;width:100%;text-align:center}.noscript a{text-decoration:underline}
@keyframes float{50%{transform:translateY(-7px)}}@keyframes rotate{to{transform:rotate(360deg)}}@keyframes sheet-in{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:521px){body{background:#430603}.cover{background:#570600}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.main-visual{min-height:100vh;min-height:100svh}
.swipe-hint{left:max(76px,calc((100vw - 520px)/2 + 76px));width:120px;height:66px;border-radius:32px;background:rgba(83,3,0,.88)}.swipe-hint img{width:210px;height:105px;max-width:none;margin:-20px -45px}
@media(orientation:landscape) and (max-height:520px){.swipe-hint{visibility:hidden}}