@font-face { font-family: 'Big Shoulders'; src: url(/fonts/bigshoulders.woff2) format('woff2'); font-weight: 500 900; font-display: swap; }
@font-face { font-family: 'Courier Prime'; src: url(/fonts/courierprime-400.woff2) format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Courier Prime'; src: url(/fonts/courierprime-700.woff2) format('woff2'); font-weight: 700; font-display: swap; }

:root {
  --night: #0c0805; --night-2: #17100a; --coat: #e6b23a; --coat-deep: #b9861d;
  --paper: #e9ddc2; --paper-2: #d9c9a6; --ink: #2a1d10; --string: #b8322a; --ash: #9a8b76;
  --display: 'Big Shoulders', 'Arial Narrow', sans-serif;
  --type: 'Courier Prime', 'Courier New', monospace;
  --body: system-ui, -apple-system, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --wrap: min(1180px, 100% - 2.5rem);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }
body { margin: 0; background: var(--night); color: var(--paper); font: 400 1rem/1.6 var(--body); -webkit-font-smoothing: antialiased; }
[hidden] { display: none !important; }
img { max-width: 100%; display: block; }
a { color: var(--coat); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--coat); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { font-family: var(--display); font-weight: 800; line-height: 1; margin: 0; letter-spacing: .01em; }
h2 { font-size: clamp(2.4rem, 5vw, 3.6rem); }
h3 { font-size: 1.45rem; font-weight: 700; }
:lang(zh) h1, :lang(zh) h2, :lang(zh) h3 { letter-spacing: .04em; font-weight: 900; }
.skip { position: absolute; left: -999px; top: .5rem; background: var(--coat); color: var(--night); padding: .4rem .8rem; z-index: 50; }
.skip:focus { left: .5rem; }

/* ---- top bar ---- */
.bar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 1.2rem; padding: .55rem max(1.25rem, (100% - 1180px) / 2);
  background: rgb(12 8 5 / .88); backdrop-filter: blur(8px); border-bottom: 1px solid rgb(230 178 58 / .18); }
.brand { display: flex; align-items: center; gap: .6rem; color: var(--paper); text-decoration: none; }
.brand img { border-radius: 50%; border: 2px solid var(--coat); }
.brand-name { font: 800 1.35rem/1 var(--display); }
.nav { display: flex; gap: 1.1rem; margin-left: .6rem; }
.nav a { color: var(--paper-2); text-decoration: none; font-size: .92rem; }
.nav a:hover { color: var(--coat); }
.unofficial { margin-left: auto; font-size: .8rem; color: var(--ash); }
.lang { font: 700 .95rem var(--body); color: var(--night); background: var(--coat); border: 0; border-radius: 999px; padding: .38rem .95rem; cursor: pointer; }
.lang:hover { background: var(--paper); }

/* ---- buttons ---- */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 2.9rem; padding: .55rem 1.3rem; border-radius: 3px;
  font: 700 1.05rem/1.1 var(--body); text-decoration: none; cursor: pointer; border: 2px solid var(--coat); transition: background .15s, color .15s; }
.btn-coat { background: var(--coat); color: var(--night); }
.btn-coat:hover { background: var(--paper); border-color: var(--paper); }
.btn-ghost { background: transparent; color: var(--coat); }
.btn-ghost:hover { background: rgb(230 178 58 / .12); }

/* ---- hero ---- */
.hero { position: relative; min-height: min(92vh, 860px); display: flex; align-items: center;
  background: var(--night) url(/img/hero.jpg) right center / cover no-repeat; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, var(--night) 0%, rgb(12 8 5 / .92) 32%, rgb(12 8 5 / .35) 62%, rgb(12 8 5 / 0) 80%),
  linear-gradient(0deg, var(--night) 0%, rgb(12 8 5 / 0) 22%); }
.hero-copy { position: relative; width: var(--wrap); margin: 0 auto; padding: 4rem 0 5rem; }
.hero-copy > * { max-width: 34rem; }
.hero h1 { font-size: clamp(3.4rem, 8.4vw, 6.6rem); font-weight: 900; color: var(--paper); text-wrap: balance; }
:lang(zh) .hero h1 { font-size: clamp(2.8rem, 6.6vw, 5.2rem); line-height: 1.08; }
.hero-p { font-size: 1.12rem; color: var(--paper-2); margin: 1.2rem 0 1.8rem; }
.theory { margin: 0 0 1.2rem; padding: 1.1rem 1.3rem 1rem; background: var(--paper); color: var(--ink); font-family: var(--type);
  transform: rotate(-1.2deg); box-shadow: 0 14px 30px rgb(0 0 0 / .55); position: relative; }
.theory::before { content: ''; position: absolute; top: -10px; left: 50%; width: 92px; height: 22px; margin-left: -46px; background: rgb(230 178 58 / .75); transform: rotate(2deg); }
.theory figcaption { font-weight: 700; color: var(--string); font-size: .9rem; }
.theory blockquote { margin: .35rem 0 .5rem; font-size: 1.12rem; line-height: 1.45; }
.theory-meta { margin: 0; font-size: .8rem; color: #6b5a44; }
.clock { font: 700 1.3rem/1.2 var(--display); color: var(--coat); letter-spacing: .03em; margin: 1.4rem 0 1.2rem; }
.cta { display: flex; flex-wrap: wrap; gap: .8rem; }

/* ---- sections ---- */
main > section { padding: 5rem 0; }
.sec-head { width: var(--wrap); margin: 0 auto 2.2rem; }
.sec-head p { max-width: 40rem; color: var(--paper-2); margin: .7rem 0 0; }
.src { width: var(--wrap); margin: 1.2rem auto 0; font-size: .82rem; color: var(--ash); }

/* ---- clue board: cork, paper, pins, red string ---- */
.board-wrap { background: #3a2716 url(/img/board.jpg) center / 520px repeat; box-shadow: inset 0 18px 40px rgb(0 0 0 / .65), inset 0 -18px 40px rgb(0 0 0 / .65); }
.board-wrap .sec-head h2 { color: var(--paper); text-shadow: 0 3px 0 rgb(0 0 0 / .45); }
.board-wrap .sec-head p { display: inline-block; background: rgb(12 8 5 / .78); padding: .5rem .8rem; color: var(--paper); }
.board { position: relative; width: var(--wrap); margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 2.6rem 2rem; align-items: start; }
.strings { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; overflow: visible; }
.strings path { fill: none; stroke: var(--string); stroke-width: 2.2; stroke-linecap: round; filter: drop-shadow(0 2px 1px rgb(0 0 0 / .5)); }
.clue { position: relative; z-index: 1; background: var(--paper); color: var(--ink); padding: 1.5rem 1.1rem 1rem; font-family: var(--type); font-size: .93rem; line-height: 1.5;
  transform: rotate(var(--tilt, 0deg)); box-shadow: 0 10px 22px rgb(0 0 0 / .5), 0 1px 0 rgb(255 255 255 / .4) inset; }
.clue:nth-child(3n) { background: #efe5cf; }
.clue-hint { background: #f3e2b0; }
.pin { position: absolute; z-index: 3; top: 8px; left: 50%; width: 16px; height: 16px; margin-left: -8px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ff8a7a, var(--string) 55%, #5e140f); box-shadow: 0 3px 4px rgb(0 0 0 / .55); }
.stamp { display: inline-block; margin: 0 0 .5rem; padding: .05rem .5rem; border: 2px solid var(--string); color: var(--string); font-weight: 700; transform: rotate(-3deg); }
.clue-puzzle .stamp, .clue-hint .stamp { background: var(--string); color: var(--paper); }
.clue-meta { margin: 0 0 .5rem; color: #6b5a44; font-size: .8rem; }
.clue-img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; margin: .2rem 0 .7rem; border: 6px solid #fff; box-shadow: 0 2px 6px rgb(0 0 0 / .3); }
.clue-text { margin: 0 0 .6rem; white-space: pre-line; overflow-wrap: anywhere; }
.clue-text:lang(zh) { font-family: var(--body); }
.clue-note { margin: 0 0 .6rem; padding-top: .55rem; border-top: 1px dashed #a8946f; font-size: .85rem; }
.clue-note span { font-weight: 700; }
.clue-note:lang(zh), :lang(zh) .clue-note { font-family: var(--body); }
.clue-flag { margin: 0 0 .6rem; font-size: .8rem; color: var(--string); font-weight: 700; }
.clue-link { color: var(--ink); font-weight: 700; font-size: .85rem; }

/* ---- odds ---- */
.odds-grid { width: var(--wrap); margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); gap: 2.6rem 3.2rem; }
.q h3 { margin-bottom: .9rem; color: var(--paper); }
.opts { list-style: none; margin: 0; padding: 0; display: grid; gap: .8rem; }
.opt { display: grid; grid-template-columns: 1fr auto; gap: .25rem .8rem; align-items: baseline; color: var(--paper-2); }
.opt-name { font-size: .97rem; }
.opt-pct { font: 800 1.35rem/1 var(--display); color: var(--paper); font-variant-numeric: tabular-nums; }
.opt-pct small { font: 600 .78rem var(--body); }
.opt-pct .up { color: #8fc27a; } .opt-pct .down { color: #e0806f; }
.track { grid-column: 1 / -1; height: 10px; background: rgb(233 221 194 / .1); position: relative; }
.track .fill, .crowd .fill { display: block; height: 100%; width: var(--w); background: var(--ash); transition: width .6s ease; }
.lead .opt-name { color: var(--paper); font-weight: 600; }
.lead .track .fill { background: var(--coat); }
.lead .opt-pct { color: var(--coat); font-size: 1.7rem; }
.right .opt-name { color: #8fc27a; }
.crowd { grid-column: 1 / -1; display: flex; align-items: center; gap: .6rem; height: auto; }
.crowd .fill { height: 4px; background: var(--paper-2); flex: none; max-width: 70%; }
.crowd em { font-style: normal; font-size: .76rem; color: var(--ash); white-space: nowrap; }
.reasoning { width: var(--wrap); margin: 3.4rem auto 0; padding: 1.8rem 2rem; background: var(--night-2); border-left: 4px solid var(--coat); }
.reasoning ol { margin: 1rem 0 0; padding: 0; list-style: none; counter-reset: step; display: grid; gap: .9rem; max-width: 52rem; }
.reasoning li { counter-increment: step; display: grid; grid-template-columns: 2.2rem 1fr; }
.reasoning li::before { content: counter(step); font: 900 1.6rem/1.1 var(--display); color: var(--coat); }
.watch { margin: 1.4rem 0 0; max-width: 52rem; color: var(--paper-2); }
.watch strong { color: var(--paper); }

/* ---- guess: a manila case file ---- */
.guess { background: linear-gradient(180deg, var(--night) 0%, var(--night-2) 100%); }
.guess-cols { width: var(--wrap); margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr); gap: 2.4rem; align-items: start; }
.guess-cols:has(.casecard[hidden]) { grid-template-columns: minmax(0, 1fr); max-width: 860px; }
.file { background: #d8bd7e; color: var(--ink); padding: 2.2rem 2rem 2rem; border-radius: 0 6px 6px 6px; position: relative; box-shadow: 0 18px 40px rgb(0 0 0 / .5); }
.file::before { content: ''; position: absolute; top: -22px; left: 0; width: 38%; height: 24px; background: #d8bd7e; border-radius: 6px 6px 0 0; }
.fq { border: 0; margin: 0 0 1.6rem; padding: 0; }
.fq legend { display: flex; gap: .7rem; align-items: baseline; font: 700 1.25rem/1.25 var(--display); margin-bottom: .7rem; padding: 0; }
:lang(zh) .fq legend { font-family: var(--body); font-size: 1.08rem; }
.qn { font: 900 1.5rem/1 var(--display); color: var(--string); }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span { display: inline-block; padding: .45rem .85rem; background: #efe1bb; border: 2px solid #b39758; border-radius: 3px; font-size: .93rem; line-height: 1.3; }
.chip:hover span { border-color: var(--ink); }
.chip input:checked + span { background: var(--ink); color: var(--coat); border-color: var(--ink); }
.chip input:focus-visible + span { outline: 3px solid var(--string); outline-offset: 2px; }
.fq:disabled .chip { cursor: default; opacity: .75; }
.who { display: grid; grid-template-columns: minmax(0, 24rem); gap: 1rem 1.4rem; margin-top: .4rem; }
.who label { display: grid; gap: .3rem; font-weight: 600; font-size: .92rem; }
.who input { font: 400 1rem var(--type); padding: .65rem .75rem; border: 2px solid #b39758; background: #f5ecd6; color: var(--ink); border-radius: 3px; width: 100%; }
.who input:focus { border-color: var(--ink); outline: none; }
.who small { font-weight: 400; color: #5e4a2c; font-size: .8rem; }
.form-msg { min-height: 1.4em; margin: 1rem 0 .6rem; font-weight: 600; color: #7e1d16; }
.file .btn-coat { background: var(--ink); color: var(--coat); border-color: var(--ink); }
.file .btn-coat:hover { background: var(--string); border-color: var(--string); color: var(--paper); }

.casecard { background: var(--paper); color: var(--ink); padding: 1.8rem 1.6rem; font-family: var(--type); transform: rotate(1.4deg); box-shadow: 0 18px 40px rgb(0 0 0 / .55); position: sticky; top: 5rem; }
.casecard h3 { font-size: 1.6rem; color: var(--ink); margin-bottom: .6rem; }
.casecard dl { margin: 0 0 1.4rem; display: grid; gap: .15rem; }
.casecard dt { font-size: .8rem; color: #6b5a44; margin-top: .55rem; }
.casecard dd { margin: 0; font-weight: 700; }
.casecard dd.hit::before { content: '✓ '; color: #2f7a28; }
.casecard dd.miss { text-decoration: line-through; text-decoration-color: var(--string); text-decoration-thickness: 2px; }
.score { font: 900 2.2rem/1 var(--display); color: var(--string); margin: 0 0 .6rem; }
.share { display: flex; flex-wrap: wrap; gap: .6rem; }
.casecard .btn { font-family: var(--body); font-size: .95rem; }
.casecard .btn-coat { background: var(--ink); color: var(--coat); border-color: var(--ink); }
.casecard .btn-ghost { color: var(--ink); border-color: var(--ink); }
.shared { padding: 3.5rem 0 1rem !important; }
.shared .casecard { position: static; width: min(460px, 100% - 2.5rem); margin: 0 auto; }

/* ---- reveal & leaderboard ---- */
.reveal, .leader { width: var(--wrap); margin: 0 auto; }
.reveal { text-align: left; }
.reveal h2 { color: var(--coat); }
.reveal-text { font-size: 1.25rem; max-width: 44rem; }
.reveal dl { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1.2rem; }
.reveal dd { margin: 0; font-weight: 700; color: var(--coat); }
.leader .sec-head { width: auto; }
.lb { list-style: none; counter-reset: r; margin: 0; padding: 0; max-width: 640px; }
.lb li { counter-increment: r; display: grid; grid-template-columns: 2.6rem 1fr auto; padding: .6rem 0; border-bottom: 1px solid rgb(233 221 194 / .14); }
.lb li::before { content: counter(r); font: 800 1.3rem var(--display); color: var(--coat); }
.lb li.me { color: var(--coat); font-weight: 700; }

/* ---- prize pool: the pot is the one loud number; your wallet is an evidence tag ---- */
.pool { background: var(--night-2); border-top: 4px solid var(--coat); }
.pool-cols { width: var(--wrap); margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr); gap: 2.6rem; align-items: start; }
.pot { padding-bottom: 1.6rem; margin-bottom: 1.8rem; border-bottom: 1px dashed rgb(233 221 194 / .25); }
.pot p { margin: 0; }
.pot-label { color: var(--paper-2); font-weight: 600; }
.pot-num { font: 900 clamp(3.6rem, 10vw, 6.4rem)/1 var(--display); color: var(--coat); font-variant-numeric: tabular-nums; margin: .2rem 0 .6rem !important; }
.pot-num span { font-size: .38em; color: var(--paper); font-weight: 800; }
.pot-sub { color: var(--paper-2); font-size: .95rem; margin-top: .25rem !important; }
.pot-sub.warn { color: #e0806f; }
.pool-main h3 { color: var(--paper); margin-bottom: 1rem; }
.steps { margin: 0; padding: 0; list-style: none; counter-reset: s; display: grid; gap: .9rem; max-width: 46rem; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 2.2rem 1fr; color: var(--paper-2); }
.steps li::before { content: counter(s); font: 900 1.5rem/1.1 var(--display); color: var(--coat); }
.pool-note { margin: 1.6rem 0 0; font-size: .85rem; color: var(--ash); max-width: 46rem; }
.tag { position: sticky; top: 5rem; background: var(--paper); color: var(--ink); padding: 2.1rem 1.5rem 1.4rem; font-family: var(--type); transform: rotate(-1.2deg);
  box-shadow: 0 18px 40px rgb(0 0 0 / .55); clip-path: polygon(14% 0, 86% 0, 100% 9%, 100% 100%, 0 100%, 0 9%); }
.tag::before { content: ''; position: absolute; top: .7rem; left: 50%; width: 14px; height: 14px; margin-left: -7px; border-radius: 50%; background: var(--night-2); box-shadow: inset 0 0 0 3px var(--coat-deep); }
.tag h3 { color: var(--ink); font-size: 1.5rem; margin-bottom: .7rem; }
.tag p { margin: 0 0 .6rem; }
.tag .addr { font-weight: 700; overflow-wrap: anywhere; font-size: .88rem; }
.tag a { color: var(--ink); }
.tag .ok { color: #2f6e27; font-weight: 700; }
.tag .warn { color: var(--string); font-weight: 700; }
.tag .won { font: 900 1.8rem/1.1 var(--display); color: var(--string); }
.tag .btn { font-family: var(--body); margin: .4rem 0 .5rem; width: 100%; }
.tag .btn-coat { background: var(--ink); color: var(--coat); border-color: var(--ink); }
.tag .btn-coat:hover { background: var(--string); border-color: var(--string); color: var(--paper); }
.tag .btn-ghost { color: var(--ink); border-color: var(--ink); }
.tag small { display: block; font-size: .8rem; color: #5e4a2c; }
.tag .form-msg { margin: .8rem 0 0; font-size: .88rem; }
.tag .form-msg:empty { display: none; }
.lb .to { color: var(--ash); font-weight: 400; }
:lang(zh) .tag { font-family: var(--body); }
.paid { width: var(--wrap); margin: 3rem auto 0; display: grid; gap: 2.4rem; }
.round h3 { color: var(--paper); margin-bottom: .6rem; }
.round > p { color: var(--paper-2); margin: 0 0 1rem; }
.txs { list-style: none; margin: 0; padding: 0; max-width: 640px; }
.txs li { display: flex; justify-content: space-between; gap: 1rem; padding: .55rem 0; border-bottom: 1px solid rgb(233 221 194 / .14); }
.txs time { color: var(--ash); font-size: .85rem; white-space: nowrap; }
.chooser { border: 0; padding: 1.6rem; background: var(--paper); color: var(--ink); min-width: min(320px, 90vw); display: grid; gap: .6rem; }
.chooser::backdrop { background: rgb(12 8 5 / .75); }
.chooser h3 { color: var(--ink); margin-bottom: .4rem; }
.chooser .btn { color: var(--ink); border-color: var(--ink); gap: .6rem; }
.chooser img { width: 22px; height: 22px; }
.btn-link { background: none; border: 0; color: var(--ink); text-decoration: underline; cursor: pointer; font: inherit; padding: .4rem; }

/* ---- community ---- */
.quotes { width: var(--wrap); margin: 0 auto; padding: 0; list-style: none; columns: 3 300px; column-gap: 1.6rem; }
.quotes li { break-inside: avoid; margin: 0 0 1.6rem; padding: 0 0 0 1.1rem; border-left: 3px solid var(--ash); }
.quotes blockquote { margin: 0 0 .4rem; white-space: pre-line; overflow-wrap: anywhere; color: var(--paper); }
.quotes p { margin: 0; font-size: .85rem; color: var(--ash); }

/* ---- 100 days ---- */
.days { background: var(--night-2); }
.day-strip { width: var(--wrap); margin: 0 auto; padding: 0 0 1rem; list-style: none; display: grid; grid-auto-flow: column; grid-auto-columns: minmax(230px, 260px);
  gap: 1.2rem; overflow-x: auto; scroll-snap-type: x mandatory; }
.day-strip li { scroll-snap-align: start; }
.day-strip a { display: grid; gap: .45rem; height: 100%; padding: 1rem; background: var(--night); border-top: 4px solid var(--coat); color: var(--paper-2); text-decoration: none; font-size: .9rem; }
.day-strip a:hover { background: #20160d; }
.day-strip strong { font: 900 1.8rem/1 var(--display); color: var(--coat); }
.day-strip time { font-size: .78rem; color: var(--ash); }
.day-strip img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; }

/* ---- coin ---- */
.coin { width: var(--wrap); margin: 0 auto; text-align: center; }
.coin h2 { font-size: clamp(3.4rem, 9vw, 6rem); color: var(--coat); }
#coin-body p { color: var(--paper-2); }
.ca { font: 700 clamp(.78rem, 2.4vw, 1.05rem) var(--type); background: var(--paper); color: var(--ink); border: 0; padding: .8rem 1rem; cursor: pointer; overflow-wrap: anywhere; max-width: 100%; }
.coin-links { display: flex; justify-content: center; flex-wrap: wrap; gap: .7rem; margin-top: 1.3rem; }

/* ---- footer & toast ---- */
.foot { width: var(--wrap); margin: 0 auto; padding: 3rem 0 4rem; border-top: 1px solid rgb(233 221 194 / .14); display: grid; grid-template-columns: auto 1fr; gap: .4rem 1rem; align-items: center; color: var(--ash); font-size: .88rem; }
.foot img { border-radius: 50%; grid-row: span 2; }
.foot p { margin: 0; max-width: 46rem; }
.toast { position: fixed; left: 50%; bottom: 1.5rem; transform: translate(-50%, 150%); visibility: hidden; background: var(--coat); color: var(--night); font-weight: 700; padding: .65rem 1.2rem; border-radius: 3px; transition: transform .25s, visibility .25s; z-index: 40; }
.toast.on { transform: translate(-50%, 0); visibility: visible; }

/* ---- small screens ---- */
@media (max-width: 860px) {
  .nav, .brand-name { display: none; }
  .unofficial { font-size: .72rem; line-height: 1.2; text-align: right; }
  .bar { justify-content: space-between; }
  .hero { min-height: auto; align-items: flex-end; background-position: 70% top; background-size: auto 52vh; padding-top: 34vh; }
  .hero::before { background: linear-gradient(0deg, var(--night) 0%, var(--night) 48%, rgb(12 8 5 / .4) 72%, rgb(12 8 5 / 0) 100%); }
  .hero-copy { padding: 0 0 3rem; }
  .guess-cols { grid-template-columns: 1fr; }
  .casecard { position: static; }
  .pool-cols { grid-template-columns: 1fr; }
  .tag { position: static; transform: none; }
  .who { grid-template-columns: 1fr; }
  .file { padding: 1.8rem 1.2rem 1.4rem; }
  main > section { padding: 3.6rem 0; }
  .odds-grid { grid-template-columns: 1fr; }
  .reasoning { padding: 1.4rem 1.2rem; }
  .board { gap: 2.2rem; grid-template-columns: 1fr; }
  .clue-img { aspect-ratio: 16 / 9; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
:lang(zh) .casecard dt, :lang(zh) .casecard dd, :lang(zh) .theory blockquote { font-family: var(--body); }