:root{
  --paper:#fff8f2;--pink:#d96973;--ink:#4a3031;--muted:#90726f;--gold:#e8b86d;
  --tint:#f4ddd7;--deep:#b85f67;
  --shadow:0 18px 50px rgba(99,57,51,.15);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;margin:0;padding:0}
html{background:#2b1d1c}
body{
  color:var(--ink);background:var(--paper);
  font-family:"Microsoft YaHei","PingFang SC",sans-serif;
  overflow:hidden;overscroll-behavior:none;
}
img{display:block}
button{font:inherit;border:0;cursor:pointer}
h1,h2,p,figure{margin:0}

/* ===== 封面 ===== */
.cover{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:24px;
  background:linear-gradient(145deg,#f6c7c5,#e9959a 58%,#d96973);
  transition:opacity .7s ease,visibility .7s}
.cover.is-open{opacity:0;visibility:hidden;pointer-events:none}
.cover__paper{position:relative;width:min(100%,390px);padding:64px 34px 40px;text-align:center;
  background:var(--paper);box-shadow:var(--shadow);transform:rotate(-1deg)}
.cover__paper:before{content:"";position:absolute;inset:14px;border:1px solid rgba(217,105,115,.28);pointer-events:none}
.cover__stamp{position:absolute;right:26px;top:24px;width:54px;height:64px;display:grid;place-items:center;
  color:#fff;font:700 34px/1 Georgia;background:var(--pink);border:4px dotted var(--paper);box-shadow:0 0 0 1px var(--pink)}
.cover__kicker{font:700 11px/1 Georgia;letter-spacing:.3em;color:var(--pink)}
.cover h1{margin:20px 0 14px;font:500 42px/1.3 Georgia,"STSong",serif}
.cover__line{letter-spacing:.2em;color:var(--muted);font-size:13px;margin-bottom:34px}
.cover button{display:block;width:100%;padding:15px 10px 13px;color:#fff;background:var(--pink);
  border-radius:999px;box-shadow:0 10px 24px rgba(217,105,115,.3)}
.cover button span{display:block;font-size:16px;letter-spacing:.06em}
.cover button em{display:block;margin-top:4px;font:10px/1.4 "Microsoft YaHei";font-style:normal;opacity:.85}
.cover__hint{margin:18px 0 0;font-size:11px;letter-spacing:.14em;color:var(--muted)}

/* ===== 舞台与翻页 ===== */
.stage{position:relative;height:100%;width:min(100%,480px);margin:0 auto;background:var(--paper);
  overflow:hidden;touch-action:none}
.page{position:absolute;inset:0;overflow:hidden;visibility:hidden;pointer-events:none;
  display:flex;flex-direction:column;background:var(--paper);
  padding:max(52px,env(safe-area-inset-top)) 26px max(34px,env(safe-area-inset-bottom))}
.page.active{visibility:visible;pointer-events:auto;z-index:2}
.page.leaving{z-index:1}

/* 入场动画 */
.anim{opacity:0;transform:translateY(26px)}
.page.entered .anim{opacity:1;transform:none;
  transition:opacity .75s ease var(--d,0s),transform .75s ease var(--d,0s)}

/* 通用版式 */
.no{position:absolute;right:22px;top:max(30px,calc(env(safe-area-inset-top) + 18px));
  color:rgba(217,105,115,.16);font:italic 700 68px/1 Georgia;z-index:0}
.kicker{font:700 10px/1 Georgia;letter-spacing:.26em;color:var(--pink)}
h2{font:500 clamp(26px,7vw,34px)/1.3 Georgia,"STSong",serif;margin-top:10px}
.text{color:#735755;font:400 14.5px/1.95 "STSong","SimSun",serif;letter-spacing:.03em;margin:16px 0 4px}
.frame{flex:1;min-height:0;display:flex;flex-direction:column;padding:9px 9px 12px;background:#fff;
  box-shadow:0 14px 34px rgba(111,68,61,.16);margin:18px 0 0}
.frame img{flex:1;min-height:0;width:100%;height:100%;object-fit:cover}
.frame.wide img{height:100%}
figcaption{padding-top:10px;text-align:center;color:var(--muted);font:12.5px/1.5 "STSong",serif}
.tilt-l{transform:rotate(-1.8deg)}
.tilt-r{transform:rotate(1.6deg)}
.last-photo{width:86%;margin:24px auto 0;flex:none}
/* 照片正常比例(3:4)：铺满可用宽度，白边极窄 */
.photo-fit{flex:none;width:100%}
.photo-fit img{flex:none;width:100%;height:auto;max-height:calc(100vh - 330px);object-fit:cover;margin:0 auto}
/* 第4~7页：页面白边收窄，照片更宽 */
.page--wideimg{padding-left:10px;padding-right:10px}
.page--wideimg .photo-fit img{max-height:calc(100vh - 300px)}
.page--wideimg .last-photo{width:100%}

/* 各页配色 */
.page--tint{background:var(--tint)}
.page--hero{padding:0;color:#fff;background:#754d45}
.page--hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:52% center;
  animation:hero-in 1.8s ease both}
.page--hero .shade{position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(48,22,20,.05) 30%,rgba(48,22,20,.16) 55%,rgba(48,22,20,.8) 100%)}
.page--hero .copy{position:relative;margin-top:auto;padding:0 26px max(86px,calc(env(safe-area-inset-bottom) + 70px));
  text-shadow:0 2px 15px rgba(0,0,0,.35)}
.page--hero .date{font:600 12px/1 Georgia;letter-spacing:.32em;margin-bottom:10px}
.page--hero h1{font:500 clamp(34px,10vw,44px)/1.1 Georgia,"STSong",serif}
.page--hero h1 span{display:block;font-size:clamp(20px,6vw,26px);margin-bottom:6px}
.page--hero h1 em{font-size:clamp(52px,15vw,66px);font-style:italic;color:#ffdca7}
.page--hero .sub{margin-top:14px;font-size:14px;letter-spacing:.08em}
.pair{flex:1;min-height:0;display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start;align-content:start}
.pair .frame{margin:0}
.pair .frame img{height:auto;aspect-ratio:3/4;width:100%;object-fit:cover}
.pair .frame:first-child{transform:translateY(10px) rotate(-1.4deg)}
.pair .frame:last-child{transform:translateY(-6px) rotate(1.6deg)}

/* 最后一页：宴会信息 */
.page--event{background:#fffaf5;text-align:center;overflow-y:auto;
  padding-top:max(40px,calc(env(safe-area-inset-top) + 24px))}
.page--event:before,.page--event:after{content:"";position:absolute;border-radius:50%;background:#f0c1be;opacity:.32;pointer-events:none}
.page--event:before{width:120px;height:120px;left:-66px;top:60px}
.page--event:after{width:170px;height:170px;right:-100px;bottom:90px}
.ribbon{display:inline-block;margin-bottom:18px;padding:7px 16px;border-top:1px solid var(--pink);
  border-bottom:1px solid var(--pink);color:var(--pink);font-size:10.5px;letter-spacing:.16em}
.page--event .tiny{font:13px/1.5 "STSong",serif;color:var(--muted)}
.page--event h2{font-size:clamp(30px,8.5vw,40px)}
.calendar{margin:20px auto;padding:16px 0;width:212px;display:grid;place-items:center;
  border-top:1px solid #e8c6c1;border-bottom:1px solid #e8c6c1}
.calendar strong{font:italic clamp(52px,14vw,64px)/0.95 Georgia;color:var(--pink)}
.calendar span{font-size:12.5px;letter-spacing:.14em}
.details{margin:16px 0 18px;text-align:left;position:relative;z-index:1}
.details>div{display:grid;grid-template-columns:52px 1fr;padding:10px 0;border-bottom:1px solid #eadeda}
.details span{color:var(--pink);font-size:12.5px;padding-top:2px}
.details p{font-size:13.5px;line-height:1.65}
.actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;position:relative;z-index:1}
.btn{display:flex;align-items:center;justify-content:center;padding:13px 8px;border:1px solid var(--pink);
  border-radius:999px;color:var(--pink);text-decoration:none;font-size:13.5px;background:transparent}
.btn--primary{color:#fff;background:var(--pink);box-shadow:0 8px 20px rgba(217,105,115,.28)}
.sig{margin:18px 0 8px;font:13px/1.9 "STSong",serif;color:var(--muted)}

/* 倒计时页（真正的最后一页） */
.page--countdown{align-items:center;justify-content:center;text-align:center;color:#fff;
  background:var(--deep);overflow:hidden;padding-bottom:max(30px,env(safe-area-inset-bottom))}
.page--countdown:before{content:"";position:absolute;left:-60px;bottom:-40px;width:170px;height:170px;
  border-radius:50%;background:rgba(255,255,255,.06)}
.cd-water{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);
  color:rgba(255,255,255,.07);font:italic 500 300px/1 Georgia;pointer-events:none}
.cd-lead{position:relative;font:14px/1 "STSong",serif;letter-spacing:.15em}
.cd-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:6px;
  width:min(100%,330px);margin:22px 0 34px}
.cd-grid div{padding:13px 2px;border-top:1px solid rgba(255,255,255,.42);border-bottom:1px solid rgba(255,255,255,.42)}
.cd-grid strong{display:block;font:30px/1.35 Georgia}
.cd-grid span{font-size:11px;opacity:.82}
.cd-title{position:relative;font-size:clamp(30px,8.5vw,38px)}
.cd-sig{position:relative;margin:22px 0 26px;font:14px/2 "STSong",serif}
.cd-share{position:relative;padding:13px 34px;border-radius:999px;color:var(--deep);
  background:#fff;box-shadow:0 8px 22px rgba(60,20,20,.22)}
.cd-footer{position:relative;margin:34px 0 0;font:10px/1 Georgia;letter-spacing:.26em;opacity:.65}

/* ===== 悬浮控件 ===== */
.dots{position:fixed;z-index:90;top:max(20px,env(safe-area-inset-top));left:50%;transform:translateX(-50%);
  display:flex;gap:7px;opacity:0;transition:opacity .5s}
.dots.show{opacity:1}
.dots i{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.55);
  box-shadow:0 0 0 1px rgba(0,0,0,.08);transition:.3s}
.dots i.on{background:var(--pink);transform:scale(1.25)}
.dots i.cur{background:var(--pink)}

.music{position:fixed;z-index:95;top:max(14px,env(safe-area-inset-top));right:calc(max(0px,(100vw - 480px)/2) + 14px);
  width:44px;height:44px;padding:0;border:1px solid rgba(255,255,255,.72);border-radius:50%;
  display:grid;place-items:center;color:#fff;background:rgba(74,48,49,.42);
  box-shadow:0 8px 24px rgba(44,25,25,.18);backdrop-filter:blur(9px);-webkit-backdrop-filter:blur(9px);
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:.35s}
.music.visible{opacity:1;visibility:visible;transform:none}
.music.paused{background:rgba(255,248,242,.9);color:var(--pink);border-color:rgba(217,105,115,.3)}
.music__disc{position:relative;width:26px;height:26px;border-radius:50%;display:block;
  background:repeating-radial-gradient(circle,#fff 0 2px,currentColor 3px 5px,#fff 6px 7px);
  animation:disc 5s linear infinite}
.music__disc:after{content:"";position:absolute;inset:9px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 2px rgba(255,255,255,.7)}
.music.paused .music__disc{animation-play-state:paused}
.music__waves{position:absolute;right:-4px;top:4px;display:flex;align-items:flex-end;gap:2px;height:12px}
.music__waves i{display:block;width:2px;height:6px;border-radius:2px;background:currentColor;animation:wave .7s ease-in-out infinite alternate}
.music__waves i:nth-child(2){height:11px;animation-delay:.18s}
.music__waves i:nth-child(3){height:8px;animation-delay:.34s}
.music.paused .music__waves i{animation-play-state:paused;height:3px}

.pager{position:fixed;z-index:90;bottom:max(16px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);
  padding:5px 13px;border-radius:999px;background:rgba(74,48,49,.36);color:#fff;
  font:italic 11px/1.4 Georgia;letter-spacing:.18em;opacity:0;transition:opacity .5s;backdrop-filter:blur(6px)}
.pager.show{opacity:1}
.cue{position:fixed;z-index:90;bottom:max(44px,calc(env(safe-area-inset-bottom) + 36px));left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:5px;color:#fff;font-size:10.5px;letter-spacing:.14em;
  text-shadow:0 1px 8px rgba(0,0,0,.4);opacity:0;transition:opacity .5s;pointer-events:none}
.cue.show{opacity:.92}
.cue span{width:16px;height:26px;border:1px solid currentColor;border-radius:10px;position:relative}
.cue span:after{content:"";position:absolute;top:4px;left:6px;width:2px;height:6px;background:#fff;border-radius:2px;animation:scroll 1.6s infinite}

.toast{position:fixed;z-index:110;left:50%;bottom:70px;transform:translate(-50%,20px);padding:10px 16px;
  background:rgba(45,31,31,.9);color:#fff;border-radius:999px;font-size:13px;opacity:0;pointer-events:none;transition:.3s}
.toast.show{opacity:1;transform:translate(-50%,0)}

@keyframes hero-in{from{transform:scale(1.06)}to{transform:scale(1)}}
@keyframes scroll{0%{opacity:0;transform:translateY(0)}40%{opacity:1}100%{opacity:0;transform:translateY(9px)}}
@keyframes disc{to{transform:rotate(360deg)}}
@keyframes wave{to{height:3px}}

/* 矮屏微调（如 iPhone SE 竖屏） */
@media (max-height:640px){
  .page{padding-top:max(40px,env(safe-area-inset-top))}
  .calendar{margin:12px auto;padding:10px 0;width:190px}
  .details>div{padding:7px 0}
  .text{margin-top:10px}
  .frame{margin-top:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .anim{opacity:1;transform:none}
}