:root{
  --ink:#0e0b08;--ink2:#17110c;--shell:#2a1a10;--shell2:#3c2616;
  --ivory:#f1e9da;--soft:#cdbda2;--metal:#bb955c;--metal2:#d8b57f;
  --line:rgba(187,149,92,.3);
  --sans:'Hanken Grotesk','Noto Sans TC','Noto Sans SC',system-ui,sans-serif;
  --disp:'Libre Caslon Display','Noto Serif TC','Noto Serif SC',Georgia,serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ink);color:var(--ivory);font:400 17px/1.65 var(--sans);overflow-x:clip}
img{display:block;max-width:100%}
h1,h2,h3,p{margin:0}
h2{font:400 34px/1.15 var(--disp);letter-spacing:.005em}
h3{font:600 21px/1.3 var(--sans)}
html[lang=zh] h2{font-family:'Noto Serif TC','Noto Serif SC',serif;font-weight:500;letter-spacing:.04em}
.kick{font-size:14px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--metal2)}
html[lang=zh] .kick{letter-spacing:.24em}
.sub{color:var(--soft);margin-top:12px}
a{color:inherit}

.top{position:absolute;z-index:5;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;padding:18px 24px 18px 30px}
.back{font:500 22px/1 'Noto Serif TC','Noto Serif SC',serif;letter-spacing:.14em;text-decoration:none;color:var(--ivory)}
.lang{background:none;border:0;color:var(--soft);font:500 15px/1 var(--sans);padding:10px 0;cursor:pointer}
.lang .sl{margin:0 7px;opacity:.5}
html[lang=en] .on-en,html[lang=zh] .on-zh{color:var(--ivory)}

.spine{position:fixed;z-index:4;left:9px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column-reverse;gap:9px;width:11px;pointer-events:none}
.spine i{display:block;height:2px;background:linear-gradient(90deg,var(--c,rgba(187,149,92,.28)) 0 100%);transition:background .6s}
.spine i.on{--c:var(--metal2)}
.spine i.yin{background:linear-gradient(90deg,var(--c,rgba(187,149,92,.28)) 0 40%,transparent 40% 60%,var(--c,rgba(187,149,92,.28)) 60% 100%)}

.btn{display:inline-block;appearance:none;border:1px solid var(--metal);background:var(--metal);color:#17100a;font:600 18px/1.2 var(--sans);letter-spacing:.02em;padding:17px 26px;min-width:220px;text-align:center;text-decoration:none;cursor:pointer;transition:background .3s,color .3s,opacity .3s}
.btn:hover{background:var(--metal2)}
.btn.ghost{background:transparent;color:var(--ivory)}
.btn.ghost:hover{background:rgba(187,149,92,.16)}
.btn[disabled]{opacity:.45;cursor:default}
.btn:focus-visible,.lang:focus-visible,.tab:focus-visible,textarea:focus-visible{outline:2px solid var(--metal2);outline-offset:2px}

.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;background:var(--ink)}
.heroImg{position:absolute;inset:0;overflow:hidden}
.heroImg img{width:100%;height:100%;object-fit:cover;object-position:50% 22%;animation:drift 18s ease-out both}
.heroImg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,11,8,.55) 0,rgba(14,11,8,0) 22%,rgba(14,11,8,0) 38%,rgba(14,11,8,.88) 66%,var(--ink) 100%)}
@keyframes drift{from{transform:scale(1.05)}to{transform:scale(1)}}
.heroText{position:relative;padding:0 24px 40px 30px;width:100%}
.hero h1{font:500 76px/1 'Noto Serif TC','Noto Serif SC',serif;letter-spacing:.1em;display:flex;margin-bottom:14px}
.hero h2{margin:8px 0 10px;font-size:36px}
.hero p:not(.kick){color:var(--ivory)}
.hero .btn{margin-top:22px}

section.plain,section.method,section.ask,section.guide{padding:64px 24px 64px 30px;max-width:720px;margin:0 auto}
.plain{border-top:1px solid var(--line)}
.plain p{margin-top:14px}
.method{border-top:1px solid var(--line)}
.sums{width:100%;border-collapse:collapse;margin-top:22px}
.sums td{padding:13px 8px 13px 0;border-top:1px solid var(--line);vertical-align:middle}
.sums tr:last-child td{border-bottom:1px solid var(--line)}
.sums .cn{font:500 24px/1 var(--disp);color:var(--metal2);width:42px}
.sums .mini{width:64px}
.sums .mini i{display:block;width:52px;height:6px;background:var(--metal)}
.sums .mini i.n{background:linear-gradient(90deg,var(--metal) 0 42%,transparent 42% 58%,var(--metal) 58% 100%)}
.sums .fr{color:var(--soft);font-size:17px}
.sums b{font-weight:500;color:var(--ivory);display:block}

.guide{display:grid;gap:22px;border-top:1px solid var(--line)}
.face{margin:0;width:min(230px,62vw);aspect-ratio:23/32;overflow:hidden;background:var(--shell)}
.face img{width:100%;height:100%;object-fit:cover}
.guide h2{margin:4px 0 10px}

.ask{border-top:1px solid var(--line)}
form{margin-top:26px;display:grid;gap:24px}
.f span,legend{display:block;font-weight:500;margin-bottom:9px;padding:0}
textarea{width:100%;background:var(--ink2);border:1px solid var(--line);color:var(--ivory);font:400 18px/1.5 var(--sans);padding:14px;resize:vertical;border-radius:0}
textarea::placeholder{color:#94866f}
fieldset{border:0;padding:0;margin:0;min-width:0}
.types{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.types label{position:relative;background:var(--ink);cursor:pointer}
.types input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.types span{display:block;text-align:center;padding:15px 8px;color:var(--soft);transition:background .25s,color .25s}
.types input:checked+span{background:var(--shell2);color:var(--ivory);box-shadow:inset 0 -2px 0 var(--metal)}
.types input:focus-visible+span{outline:2px solid var(--metal2);outline-offset:-2px}
.err{color:#e7b48a}
form .btn{justify-self:start}

.still{margin:0 auto;max-width:720px}
.still img{width:100%;aspect-ratio:5/4;object-fit:cover;object-position:50% 70%}

/* the casting table */
.cast{border-top:1px solid var(--line);overflow:clip;scroll-margin-top:0}
.stage{max-width:1120px;margin:0 auto}
.tray{position:relative;height:326px;overflow:hidden;background:#1a100a url(tray.jpg) center/cover no-repeat;perspective:900px;box-shadow:inset 0 0 70px rgba(0,0,0,.65)}
.tray.thud{animation:thud .22s cubic-bezier(.3,.7,.4,1)}
@keyframes thud{0%{transform:translateY(0)}35%{transform:translateY(2.5px)}100%{transform:translateY(0)}}
.coin{position:absolute;left:50%;top:50%;width:var(--s);height:var(--s);margin:calc(var(--s)/-2) 0 0 calc(var(--s)/-2);will-change:transform;transform-style:preserve-3d}
.shadow{position:absolute;left:50%;top:50%;width:var(--s);height:var(--s);margin:calc(var(--s)/-2) 0 0 calc(var(--s)/-2);border-radius:50%;background:radial-gradient(closest-side,rgba(0,0,0,.72) 62%,rgba(0,0,0,0) 100%);will-change:transform,opacity}
.c3d{position:absolute;inset:0;transform-style:preserve-3d;will-change:transform}
.c3d>*{position:absolute;inset:0;backface-visibility:hidden;background-size:100% 100%}
.c3d .fa{background-image:url(coin-face.webp);transform:translateZ(2.5px)}
.c3d .ba{background-image:url(coin-back.webp);transform:rotateX(180deg) translateZ(2.5px)}
.c3d .ed{border-radius:50%;background:#5b3f22;backface-visibility:visible;-webkit-mask:radial-gradient(circle closest-side,transparent 0 90%,#000 92%);mask:radial-gradient(circle closest-side,transparent 0 90%,#000 92%)}
.side{padding:22px 24px 40px 30px;text-align:left}
.qecho{color:var(--soft);font-size:17px;border-left:2px solid var(--metal);padding-left:12px;overflow-wrap:anywhere}
.count{margin-top:16px;font-size:14px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--metal2)}
.build{margin:16px 0 14px;display:flex;flex-direction:column-reverse;gap:9px;width:236px}
.slot{display:grid;grid-template-columns:150px 30px 44px;align-items:center;gap:6px;height:14px}
.bar{position:relative;height:13px;box-shadow:inset 0 0 0 1px rgba(187,149,92,.16)}
.bar b,.bar u{position:absolute;top:0;bottom:0;background:linear-gradient(180deg,var(--metal2),var(--metal) 45%,#8a6a3c);transform:scaleX(0);transition:transform .75s cubic-bezier(.2,.75,.25,1)}
.bar b{left:0;width:50%;transform-origin:100% 50%}
.bar u{right:0;width:50%;transform-origin:0 50%}
.slot.filled .bar{box-shadow:none}
.slot.filled .bar b,.slot.filled .bar u{transform:scaleX(1)}
.slot.yin .bar b{width:42%;transform-origin:0 50%}
.slot.yin .bar u{width:42%;transform-origin:100% 50%}
.slot .mk,.fig .mk{color:var(--metal2);font-size:17px;line-height:1;text-align:center;opacity:0;transition:opacity .6s .5s}
.slot.filled .mk{opacity:1}
.slot .vl{color:var(--soft);font-size:15px;line-height:1;opacity:0;transition:opacity .6s .4s}
.slot.filled .vl{opacity:1}
.status{min-height:56px;color:var(--ivory)}
.side .btn{margin-top:10px;width:100%;max-width:340px}

/* the reading */
#result{display:block;max-width:720px;margin:0 auto;padding:0 24px 40px 30px}
#result[hidden]{display:none}
.rhead{padding-top:64px;scroll-margin-top:0}
.rq{color:var(--soft);border-left:2px solid var(--metal);padding-left:12px;overflow-wrap:anywhere}
.figs{display:flex;align-items:flex-end;gap:14px;margin-top:34px}
.figBox{min-width:0}
.figBox.main{padding-right:18px}
.fig{display:flex;flex-direction:column-reverse;gap:9px;width:150px;position:relative}
.fig .r{position:relative;height:13px;background:linear-gradient(180deg,var(--metal2),var(--metal) 45%,#8a6a3c)}
.fig .r.yin{background:linear-gradient(90deg,transparent 0 100%);display:block}
.fig .r.yin::before,.fig .r.yin::after{content:"";position:absolute;top:0;bottom:0;width:42%;background:linear-gradient(180deg,var(--metal2),var(--metal) 45%,#8a6a3c)}
.fig .r.yin::before{left:0}.fig .r.yin::after{right:0}
.fig .mk{position:absolute;left:calc(100% + 8px);top:-3px;opacity:1;transition:none}
.fig.small{width:104px;gap:7px}
.fig.small .r{height:9px}
.fig.small .mk{display:none}
.arrow{color:var(--metal2);font-size:24px;align-self:center}
.figBox .no{margin-top:12px;font-size:15px;color:var(--soft)}
.figBox .nm{font:500 18px/1.25 'Noto Serif TC','Noto Serif SC',serif;overflow-wrap:anywhere}
.figBox:last-child:not(.main){flex:1;min-width:0}
.title{margin-top:30px}
.title h2{font-size:42px}
.title .nz{font:500 42px/1.15 'Noto Serif TC','Noto Serif SC',serif;letter-spacing:.06em}
.title .py{color:var(--metal2);margin-top:4px}
.block{margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.block h3{margin-bottom:10px}
.block p+p{margin-top:12px}
.lead{font-size:19px;line-height:1.6}

.wall{margin-top:56px;background:#21140b url(shell.jpg) center/cover no-repeat;border:1px solid var(--line);position:relative;display:grid}
.wall::before{content:"";position:absolute;inset:0;background:rgba(14,9,5,.72)}
.wall>*{position:relative}
.wall .face{width:100%;aspect-ratio:16/10}
.wall .face img{object-position:50% 18%}
.wall .in{padding:26px 22px 28px}
.wall h2{margin:6px 0 10px}
.wall .inc{margin:14px 0 0;padding:0;list-style:none}
.wall .inc li{padding:9px 0;border-top:1px solid var(--line)}
.price{margin:20px 0 14px}
.price b{font:400 38px/1 var(--disp);color:var(--metal2);letter-spacing:.01em}
.wall .btn{width:100%}
.wnote{margin-top:12px;font-size:15px;color:var(--soft)}

.tabs{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);margin-bottom:16px}
.tab{appearance:none;background:none;border:0;border-left:1px solid var(--line);color:var(--soft);font:500 16px/1.2 var(--sans);padding:13px 2px;cursor:pointer}
.tab:first-child{border-left:0}
.tab[aria-selected=true]{background:var(--shell2);color:var(--ivory);box-shadow:inset 0 -2px 0 var(--metal)}
.ln-note{padding:14px 0;border-top:1px solid var(--line)}
.ln-note:first-of-type{border-top:0;padding-top:4px}
.ln-note h4{margin:0 0 5px;font:500 16px/1.3 var(--sans);color:var(--metal2)}
.ln-note .tag{display:inline-block;margin-left:8px;padding:1px 7px;font-size:14px;border:1px solid var(--metal);color:var(--ivory)}
.rule{color:var(--soft);margin-bottom:12px}
.map{display:grid;grid-template-columns:repeat(8,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:14px}
.map div{background:var(--ink);padding:7px 4px 5px;text-align:center}
.map svg{display:block;width:100%;max-width:30px;margin:0 auto}
.map rect{fill:rgba(205,189,162,.5)}
.map span{display:block;font-size:12px;line-height:1.3;color:var(--soft);margin-top:3px}
.map .me{background:var(--shell2)}
.map .me rect{fill:var(--metal2)}
.map .to{box-shadow:inset 0 0 0 1px var(--metal)}
.map .to rect{fill:var(--ivory)}
.key{margin-top:10px;font-size:16px;color:var(--soft)}
.nexts{margin-top:44px}
.next{display:block;margin-top:12px;padding:17px 18px;border:1px solid var(--line);background:var(--ink2);text-decoration:none;transition:border-color .3s}
.next:hover{border-color:var(--metal)}
.next small{display:block;font-size:14px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--metal2)}
html[lang=zh] .next small{letter-spacing:.18em}
.next b{display:block;font:500 20px/1.3 var(--sans);margin:4px 0}
.next span{display:block;color:var(--soft)}
.again{margin-top:44px;padding-top:24px;border-top:1px solid var(--line)}
.again p{color:var(--soft);margin-bottom:16px}
.reveal{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.foot{padding:30px 24px 16px 30px;text-align:center;color:var(--soft);font-size:16px;border-top:1px solid var(--line)}
#yj-country{font-family:var(--sans)!important;font-size:16px!important;color:var(--soft)!important}

@media (min-width:900px){
  body{font-size:18px}
  h2{font-size:40px}
  .top{padding:24px 48px}
  .spine{left:20px;gap:12px;width:15px}
  .hero{align-items:center}
  .heroImg{left:auto;width:52%}
  .heroImg::after{background:linear-gradient(90deg,var(--ink) 0,rgba(14,11,8,.2) 34%,rgba(14,11,8,0) 60%),linear-gradient(180deg,rgba(14,11,8,.4) 0,rgba(14,11,8,0) 18%,rgba(14,11,8,0) 76%,var(--ink) 100%)}
  .heroImg img{object-position:50% 20%}
  .heroText{max-width:640px;margin-left:max(64px,calc((100vw - 1120px)/2));padding:0}
  .hero h1{font-size:112px}
  .hero h2{font-size:48px}
  section.guide{grid-template-columns:230px 1fr;align-items:start;gap:40px}
  .stage{display:grid;grid-template-columns:1fr 400px;padding:0 40px}
  .tray{height:600px}
  .side{padding:36px 0 36px 40px}
  .figBox .nm{font-size:24px}
  .wall{grid-template-columns:260px 1fr}
  .wall .face{aspect-ratio:auto;height:100%}
  .wall .in{padding:30px 30px 32px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .heroImg img,.reveal{animation:none}
  .bar b,.bar u,.spine i{transition:none}
}