/* Kevin's hidden after-hours arcade. */
html.arcade-open,html.arcade-open body{overflow:hidden!important}
html.arcade-open.has-cursor *,html.arcade-open.has-cursor{cursor:auto!important}
html.arcade-open .cursor-dot,html.arcade-open .cursor-ring{display:none!important}
.logo{-webkit-touch-callout:none;user-select:none}
.arcade-dialog{--paper:#f7efd9;--purple:#653bb3;--orange:#ed5b35;--dark:#30283e;color:var(--dark);background:var(--paper);border:0;padding:0;max-width:none;max-height:none;font-family:'Space Grotesk','Noto Sans SC',sans-serif}
.arcade-dialog::backdrop{background:radial-gradient(ellipse at 50% 42%,rgba(24,17,38,.8),rgba(12,8,20,.94))}
.arcade-dialog button{font:inherit;color:inherit;cursor:pointer!important}
.arcade-dialog button:focus-visible,.arcade-dialog input:focus-visible{outline:3px solid var(--purple);outline-offset:4px}
.arcade-dialog button:disabled{cursor:default!important}
#arcade-gate{width:min(420px,calc(100% - 32px));margin:auto;padding:32px;border:3px solid var(--dark);box-shadow:8px 8px 0 var(--orange)}
#arcade-gate.is-accepted{animation:gatePress .19s ease-in both}
@keyframes gatePress{to{transform:translate(5px,5px);box-shadow:0 0 0 var(--orange);opacity:.55}}
.ag-top{display:flex;justify-content:space-between;align-items:center;font:12px var(--mono);letter-spacing:.1em;margin-bottom:22px}
#arcade-gate h2{font-size:32px;margin-bottom:12px}
#arcade-gate label{display:block;font-size:14px;margin:18px 0 10px}
#arcade-code{width:100%;padding:13px;background:#fffaf0;border:2px solid var(--dark);font:18px var(--mono);color:var(--dark)}
#arcade-gate .ag-error{min-height:28px;padding-top:7px;font-size:12px;color:#a12c20}
.ag-enter{width:100%;padding:13px;background:var(--purple)!important;color:white!important;border:2px solid var(--dark)!important}
#arcade-room{inset:0;width:100%;height:100dvh;margin:0;overflow:auto;background-color:var(--paper);background-image:radial-gradient(#30283e20 1px,transparent 1px);background-size:16px 16px}
.ar-shell{max-width:1240px;margin:auto;padding:28px 40px 24px}
.ar-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:22px;border-bottom:2px solid var(--dark);gap:16px}
.ar-brand{display:flex;gap:10px;align-items:center;font-weight:700;font-size:16px;letter-spacing:-.03em}
.ar-brand-icon{background:var(--orange);color:var(--paper);border:2px solid var(--dark);padding:5px 9px;transform:rotate(-8deg);font:700 22px var(--mono)}
.ar-exit{border:1px solid var(--dark)!important;padding:10px 15px;background:var(--paper)!important;font-size:12px!important;box-shadow:3px 3px 0 var(--dark)}
.ar-intro{position:relative;padding:36px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.ar-kicker{font:11px var(--mono);letter-spacing:.15em;text-transform:uppercase;display:flex;align-items:center;gap:8px}
.ar-kicker::before{content:'';height:8px;width:8px;background:var(--orange);border-radius:50%}
.ar-intro h1{font-size:clamp(46px,6.5vw,88px);line-height:.94;letter-spacing:-.07em;margin:18px 0 15px;font-weight:700}
.ar-intro h1 em{color:var(--orange);font-style:normal}
.ar-intro p{font-size:14px;line-height:1.8;color:#62596a}
.ar-stamp{flex:none;display:grid;place-content:center;text-align:center;width:124px;height:124px;background:#e6dbf8;border:2px solid var(--dark);border-radius:50%;transform:rotate(12deg);font:12px var(--mono);line-height:1.5;box-shadow:5px 5px 0 var(--purple)}
.ar-stamp b{font-size:39px;line-height:1.2}
.ar-layout{display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:start}
.ar-nav{display:grid;gap:12px}
.ar-game-tab{display:flex;text-align:left;align-items:center;gap:14px;padding:18px 16px;border:2px solid var(--dark)!important;background:var(--paper)!important;transition:transform .15s,box-shadow .15s}
.ar-game-tab[aria-pressed=true]{background:var(--purple)!important;color:var(--paper)!important;box-shadow:5px 5px 0 var(--dark);transform:translate(-2px,-2px)}
.ar-game-tab:hover{transform:translate(-2px,-2px)}
.ar-game-tab .ar-icon{width:42px;font:32px var(--mono);text-align:center}
.ar-game-tab strong{display:block;font-size:17px;margin:0 0 5px}
.ar-game-tab small{font:10px var(--mono);letter-spacing:.1em;opacity:.8}
.ar-note{padding:22px 3px;color:#6d6175;font-size:12px;line-height:1.9}
.ar-note b{font:11px var(--mono);color:var(--purple)}
.ar-cabinet{border:2px solid var(--dark);background:#fffaf0;box-shadow:7px 7px 0 var(--dark)}
.ar-cabinet-bar{padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:2px solid var(--dark);font:11px var(--mono);letter-spacing:.05em}
.ar-lights{display:flex;gap:5px}.ar-lights i{display:block;width:9px;height:9px;border:1px solid var(--dark);border-radius:50%;background:var(--orange)}.ar-lights i:nth-child(2){background:#e5bc52}.ar-lights i:nth-child(3){background:#94ad87}
.ar-game{padding:22px}
.ar-game[hidden]{display:none!important}
.ar-game-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:16px}
.ar-game-head h2{font-size:24px;letter-spacing:-.04em;line-height:1.2}
.ar-game-head p{font-size:12px;color:#6d6175;margin-top:6px;line-height:1.6}
.ar-score{font:11px var(--mono);text-align:right;line-height:1.7;white-space:nowrap}
.ar-score strong{font-size:22px;color:var(--purple)}
.ar-screen{background:#e2e8b9;border:2px solid var(--dark);position:relative}
#snake-canvas{display:block;width:100%;max-width:360px;aspect-ratio:1;margin:auto;image-rendering:pixelated;touch-action:none;outline:1px solid #30283e55}
.ar-snake-wrap{display:grid;grid-template-columns:1fr 132px;gap:20px;align-items:center;background:#e2e8b9;padding:12px}
.ar-dpad{display:grid;grid-template-columns:repeat(3,38px);grid-template-rows:repeat(3,38px);gap:4px;justify-content:center}
.ar-dpad button{border:2px solid var(--dark);background:#f7efd9;font-size:19px;touch-action:manipulation;box-shadow:2px 2px 0 #30283e66}
.ar-dpad button:active{transform:translate(2px,2px);box-shadow:none}
.ar-dpad button:nth-child(1){grid-area:1/2}.ar-dpad button:nth-child(2){grid-area:2/1}.ar-dpad button:nth-child(3){grid-area:2/3}.ar-dpad button:nth-child(4){grid-area:3/2}
.ar-controls{display:flex;gap:10px;align-items:center;margin-top:16px;flex-wrap:wrap}
.ar-action{background:var(--orange)!important;border:2px solid var(--dark)!important;padding:10px 18px;box-shadow:3px 3px 0 var(--dark);font-size:13px!important;font-weight:700!important}
.ar-secondary{background:var(--paper)!important}
.ar-status{font-size:12px;color:#655869;line-height:1.6;flex:1;min-width:120px}
.ar-memory{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:16px;background:#e6dbf8;border:2px solid var(--dark)}
.ar-card{min-height:68px;aspect-ratio:1.3;border:2px solid var(--dark)!important;background:var(--purple)!important;color:var(--paper)!important;box-shadow:3px 3px 0 var(--dark);font-size:28px!important;transition:transform .15s;position:relative}
.ar-card:not(.is-open) span{visibility:hidden}.ar-card:not(.is-open)::after{content:'✦';position:absolute;inset:0;display:grid;place-items:center;color:#d3b8f2}
.ar-card.is-open{background:var(--paper)!important;color:var(--purple)!important;transform:translate(2px,2px);box-shadow:1px 1px 0 var(--dark)}
.ar-card.is-matched{background:#d2e2b6!important;color:#344729!important}
.ar-reaction{width:100%;min-height:295px;padding:30px 20px;border:2px solid var(--dark)!important;background:#e6dbf8!important;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;touch-action:manipulation}
.ar-reaction b{font-size:46px;line-height:1.1;letter-spacing:-.05em}.ar-reaction span{font-size:14px;line-height:1.6}.ar-reaction .ar-reaction-icon{font-size:48px}
.ar-reaction[data-state=waiting]{background:#f3c7a6!important}.ar-reaction[data-state=ready]{background:#d2e2b6!important}
.ar-footer{margin-top:30px;padding-top:16px;border-top:2px solid var(--dark);display:flex;justify-content:space-between;gap:12px;font:10px var(--mono);letter-spacing:.05em;color:#6d6175}
.ar-footer span:last-child{color:var(--purple)}
@media(max-width:850px){.ar-shell{padding:20px}.ar-layout{grid-template-columns:1fr}.ar-nav{grid-template-columns:repeat(3,1fr);gap:10px}.ar-game-tab{padding:12px 8px;gap:6px;justify-content:center}.ar-game-tab .ar-icon{display:none}.ar-game-tab strong{font-size:14px}.ar-game-tab small{font-size:9px}.ar-note{display:none}.ar-intro{padding:30px 0}.ar-stamp{width:95px;height:95px}.ar-stamp b{font-size:28px}.ar-stamp{font-size:10px}.ar-game{padding:18px}}
@media(max-width:480px){.ar-shell{padding:16px 14px 24px}.ar-brand{font-size:13px}.ar-exit{padding:8px;font-size:11px!important}.ar-intro{gap:8px}.ar-intro h1{font-size:48px}.ar-intro p{font-size:12px;max-width:215px}.ar-stamp{width:76px;height:76px;box-shadow:3px 3px 0 var(--purple);font-size:8px}.ar-stamp b{font-size:25px}.ar-kicker{font-size:9px}.ar-game-tab strong{font-size:12px}.ar-game-tab small{font-size:8px;letter-spacing:0}.ar-cabinet-bar{padding:12px;font-size:9px}.ar-game{padding:12px}.ar-game-head h2{font-size:21px}.ar-snake-wrap{grid-template-columns:1fr;padding:8px;gap:10px}.ar-dpad{grid-template-columns:repeat(3,42px);grid-template-rows:repeat(2,38px)}.ar-dpad button:nth-child(4){grid-area:2/2}.ar-memory{padding:10px;gap:8px}.ar-card{min-height:54px;font-size:24px!important}.ar-reaction{min-height:275px}.ar-reaction b{font-size:36px}.ar-footer{font-size:8px;line-height:1.6}.ar-game-head p{font-size:11px}}
@media(prefers-reduced-motion:reduce){.arcade-dialog *{transition:none!important;animation:none!important}}

/* Enter another side · CRT 开机动画 */
#arcade-boot{position:fixed;inset:0;margin:0;width:100%;height:100dvh;max-width:none;max-height:none;border:0;background:#070806;padding:0;font-family:'Space Grotesk','Microsoft YaHei',sans-serif;text-align:center;overflow:hidden}
#arcade-boot::backdrop{background:#070806}
.boot-crt{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;transform:scaleY(.0035);opacity:0;background:radial-gradient(ellipse at 50% 46%,#2b351b 0%,#11150b 58%,#0a0d06 100%)}
#arcade-boot.is-on .boot-crt{transform:scaleY(1);opacity:1;animation:crtOn .5s cubic-bezier(.23,1,.32,1) both,crtFlicker .32s .5s linear 2}
.boot-inner{display:flex;flex-direction:column;align-items:center;opacity:0}
#arcade-boot.is-on .boot-inner{animation:bootContent .34s .3s both}
.boot-warm{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at 50% 48%,rgba(209,238,131,.045),transparent 55%)}
.boot-lines{position:absolute;top:max(26px,env(safe-area-inset-top));left:30px;text-align:left;font:11px/2.1 'JetBrains Mono',ui-monospace,monospace;letter-spacing:.12em;color:#9db86a;text-shadow:0 0 8px rgba(209,238,131,.3)}
.boot-lines span{display:block}
.boot-title{font-size:clamp(24px,4.6vw,40px);letter-spacing:.14em;font-weight:500;color:#d1ee83;margin:0 0 16px;min-height:1.3em;text-shadow:0 0 12px rgba(209,238,131,.28)}
.boot-sub{font:10px 'JetBrains Mono',ui-monospace,monospace;letter-spacing:.3em;color:#8ba463;margin:0 0 42px}
.boot-bar{width:min(300px,62vw);height:10px;border:1px solid #d1ee8340;padding:2px;background:rgba(13,16,10,.5)}
.boot-bar i{display:block;height:100%;background:repeating-linear-gradient(90deg,#d1ee83 0 6px,transparent 6px 8px);transform:scaleX(0);transform-origin:left;transition:transform .12s steps(3)}
.boot-pct{font:10px 'JetBrains Mono',ui-monospace,monospace;letter-spacing:.2em;color:#9db86a;margin-top:12px}
.boot-grant{margin:34px 0 0;font:700 13px 'JetBrains Mono',ui-monospace,monospace;letter-spacing:.18em;color:#0d100c;background:#d1ee83;padding:9px 20px;transform:rotate(-4deg) scale(1.7);opacity:0;box-shadow:0 0 34px rgba(209,238,131,.5)}
#arcade-boot.is-grant .boot-grant{animation:stampIn .3s cubic-bezier(.2,1.75,.35,1) both}
/* 交接：票面黄绿色铺满屏幕，房间从同色落地，没有黑屏断层 */
#arcade-boot.is-xfer .boot-crt{transform:scaleY(1);opacity:1}
#arcade-boot.is-xfer .boot-inner>:not(.boot-grant),#arcade-boot.is-xfer .boot-lines,#arcade-boot.is-xfer .boot-scan,#arcade-boot.is-xfer .boot-vignette,#arcade-boot.is-xfer .boot-warm{transition:opacity .16s ease;opacity:0}
#arcade-boot.is-xfer .boot-grant{animation:grantExpand .42s cubic-bezier(.55,0,.85,.4) both}
#arcade-room.ar-enter{animation:roomLand .55s ease-out both}
#arcade-room.ar-enter .ar-shell>*{animation:roomRise .5s cubic-bezier(.2,.7,.3,1) both}
#arcade-room.ar-enter .ar-shell>*:nth-child(2){animation-delay:.07s}
#arcade-room.ar-enter .ar-shell>*:nth-child(3){animation-delay:.12s}
#arcade-room.ar-enter .ar-shell>*:nth-child(4){animation-delay:.17s}
#arcade-room.ar-enter .ar-shell>*:nth-child(n+5){animation-delay:.22s}
.boot-inner small{font:9px 'JetBrains Mono',ui-monospace,monospace;letter-spacing:.17em;color:#78866a;margin-top:26px}
.boot-scan{position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(0,0,0,.24) 0 1px,transparent 1px 3px)}
.boot-scan::after{content:'';position:absolute;left:0;right:0;height:130px;background:linear-gradient(180deg,transparent,rgba(209,238,131,.055),transparent);animation:scanDrift 4.6s linear infinite}
.boot-vignette{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at center,transparent 52%,rgba(0,0,0,.58) 100%)}
@keyframes crtOn{0%{transform:scaleY(.0035);opacity:1;filter:brightness(4)}45%{transform:scaleY(.0035);filter:brightness(2.6)}72%{transform:scaleY(1.015);filter:brightness(1.5)}100%{transform:scaleY(1);opacity:1;filter:brightness(1)}}
@keyframes crtFlicker{0%,100%{opacity:1}30%{opacity:.82}55%{opacity:.95}78%{opacity:.88}}
@keyframes bootContent{from{opacity:0}to{opacity:1}}
@keyframes stampIn{0%{opacity:0;transform:rotate(-4deg) scale(1.7)}62%{opacity:1;transform:rotate(-4deg) scale(.96)}100%{opacity:1;transform:rotate(-4deg) scale(1)}}
@keyframes grantExpand{0%{transform:rotate(-4deg) scale(1);opacity:1}18%{transform:rotate(0deg) scale(1.05);opacity:1}40%{color:transparent;box-shadow:none;opacity:1}100%{transform:rotate(0deg) scale(60);color:transparent;box-shadow:none;opacity:1}}
@keyframes roomLand{from{background-color:#d1ee83}to{background-color:var(--paper)}}
@keyframes roomRise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes scanDrift{from{transform:translateY(-140px)}to{transform:translateY(110vh)}}
@media(prefers-reduced-motion:reduce){#arcade-boot .boot-crt,#arcade-boot .boot-inner{animation:none!important;transform:none;opacity:1}#arcade-boot *,#arcade-boot *::before,#arcade-boot *::after{animation:none!important}#arcade-room.ar-enter,#arcade-room.ar-enter .ar-shell>*{animation:none!important}}
/* 房间打开时，暂停身后主页的装饰动画 */
html.arcade-open .mq-track,html.arcade-open .orb,html.arcade-open .fx-scan,html.arcade-open .fx-grid,html.arcade-open .sb-dot{animation-play-state:paused!important}

/* 全站荣誉榜 */
.ar-hall{margin-top:34px;border:2px solid var(--dark);background:#fffaf0;box-shadow:7px 7px 0 var(--dark);padding:26px 28px}
.ar-hall-top{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:18px}
.ar-hall-kicker{font:10px var(--mono);letter-spacing:.15em;color:var(--purple)}
.ar-hall-top h2{font-size:clamp(24px,3.4vw,34px);letter-spacing:-.03em;margin-top:8px}
.ar-hall-me{font-size:12px;color:#655869;white-space:nowrap;padding-top:10px}
.ar-hall-me b{color:var(--purple);font-size:14px}
.ar-hall-rename{border:1px solid var(--dark)!important;background:var(--paper)!important;font-size:10px!important;padding:3px 9px;margin-left:6px}
.ar-hall-games{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.ar-hall-games button{border:2px solid var(--dark)!important;background:var(--paper)!important;font:11px var(--mono)!important;padding:7px 13px;transition:transform .15s,box-shadow .15s}
.ar-hall-games button[aria-pressed=true]{background:var(--dark)!important;color:var(--paper)!important;box-shadow:3px 3px 0 var(--orange)}
.ar-hall-games button:hover{transform:translate(-1px,-1px)}
.ar-hall-list{list-style:none;margin:0;padding:0;border-top:2px solid var(--dark)}
.ar-hall-list li{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:12px;padding:10px 6px;border-bottom:1px dashed #30283e44;font-size:14px}
.ar-hall-list li i{font:700 15px var(--mono);color:#95879e;font-style:normal}
.ar-hall-list li:nth-child(1) i,.ar-hall-list li:nth-child(2) i,.ar-hall-list li:nth-child(3) i{color:var(--orange)}
.ar-hall-list li span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ar-hall-list li b{font:700 14px var(--mono);color:var(--purple);font-variant-numeric:tabular-nums}
.ar-hall-list li.is-me{background:#dce6b3;outline:2px solid var(--dark);outline-offset:-2px}
.ar-hall-status{font-size:12px;color:#655869;min-height:20px;padding-top:12px;line-height:1.7}
.ar-hall-join{margin-top:6px;border-top:1px dashed #30283e55;padding-top:16px}
.ar-hall-join[hidden]{display:none}
.ar-hall-join label{display:block;font-size:13px;font-weight:700;margin-bottom:10px}
.ar-hall-join-row{display:flex;gap:10px;flex-wrap:wrap}
.ar-hall-join-row input{flex:1;min-width:180px;padding:11px 13px;background:#fff;border:2px solid var(--dark);font:14px var(--mono);color:var(--dark)}
.ar-hall-hint{font-size:11px;color:#6d6175;margin-top:9px}
@media(max-width:480px){.ar-hall{padding:18px 16px}.ar-hall-top{flex-direction:column;gap:6px}.ar-hall-me{padding-top:0}.ar-hall-list li{grid-template-columns:32px 1fr auto;font-size:13px;gap:8px}}

/* Small tactile controls follow the existing arcade palette. */
.ar-header{gap:12px;flex-wrap:wrap}.ar-feedback{margin-left:auto;border:1px solid var(--dark)!important;border-radius:20px;padding:8px 12px;font-size:11px!important;min-height:40px;background:var(--paper)!important}
.ar-feedback[aria-pressed=true]{color:var(--purple)}.ar-feedback:disabled{opacity:.65;cursor:default!important}
.logo.is-holding{outline:2px solid #e3c188;outline-offset:7px;border-radius:3px}
@media(prefers-reduced-motion:no-preference){.logo.is-holding{animation:secret-hold .7s ease-out both}@keyframes secret-hold{from{outline-color:transparent}to{outline-color:#e3c188}}}
@media(max-width:440px){.ar-header{gap:9px}.ar-header .ar-brand{width:100%}.ar-feedback{margin-left:0}.ar-exit{margin-left:auto}}
#hall-pin{flex:0 1 170px;min-width:140px}