.at-paper{background-color:var(--paper);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:24px 24px}
.at-mono{font-family:var(--mono)}
.at-head{padding:56px 0 28px;border-bottom:1px solid var(--rule)}
.at-head h1{font-size:clamp(34px,5vw,56px);line-height:1.08;margin:0 0 18px;letter-spacing:.02em}
.at-head h1 i{font-style:normal;color:var(--red-ink)}
.at-lede{max-width:720px;color:var(--ink-2);font-size:17px;line-height:1.8;margin:0}
.at-legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px;font-size:13px;color:var(--ink-3)}
.at-legend span{display:inline-flex;align-items:center;gap:6px}
.at-bar{display:flex;gap:10px 22px;flex-wrap:wrap;align-items:center;padding:18px 0;position:sticky;top:56px;z-index:5;background:var(--paper)}
.at-seg{display:inline-flex;border:1px solid var(--ink)}
.at-seg button{font:inherit;font-size:14px;padding:7px 14px;background:none;border:0;color:var(--ink);cursor:pointer}
.at-seg button+button{border-left:1px solid var(--ink)}
.at-seg button[aria-pressed=true]{background:var(--ink);color:var(--paper)}
.at-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:0;border-top:1px solid var(--ink);border-left:1px solid var(--ink);margin:6px 0 72px}
.at-card{display:flex;flex-direction:column;border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);color:var(--ink);text-decoration:none;background:var(--paper-2);transition:background .2s}
.at-card:hover{background:var(--paper)}
.at-card:hover .at-pv svg{transform:scale(1.03)}
.at-pv{aspect-ratio:560/400;overflow:hidden;position:relative;border-bottom:1px solid var(--rule)}
.at-pv svg,.at-pv img{width:100%;height:100%;display:block;transition:transform .5s}
.at-pv .at-wip{position:absolute;inset:14%;border:1px dashed var(--ink-3);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--ink-3);font-size:13px}
.at-pv .at-wip b{font-family:var(--serif);font-size:22px;color:var(--ink-2);font-weight:600}
.at-tbk{display:grid;grid-template-columns:56px 1fr auto;min-height:58px}
.at-tbk>*{padding:9px 12px;display:flex;flex-direction:column;justify-content:center}
.at-tbk>*+*{border-left:1px solid var(--rule)}
.at-tbk .no{font-family:var(--mono);font-size:12px;color:var(--ink-3);align-items:center}
.at-tbk .nm b{font-size:16px}
.at-tbk .nm small{font-family:var(--mono);font-size:11px;color:var(--ink-3);margin-top:2px}
.at-card.is-off{display:none}
.at-tier{font-size:11px;letter-spacing:.06em;padding:2px 7px;border:1px solid currentColor;white-space:nowrap;line-height:1.5}
.at-tier.t-public{color:var(--blue)}
.at-tier.t-guest{color:var(--ink-2)}
.at-tier.t-student{color:var(--red-ink)}
.at-tier.t-wip{color:var(--ink-3);border-style:dashed}
.at-card[data-state=wip]{cursor:default}
.at-card[data-state=wip]:hover{background:var(--paper-2)}
.at-card[data-state=wip] .at-pv{background:repeating-linear-gradient(135deg,transparent 0 9px,color-mix(in srgb,var(--rule) 55%,transparent) 9px 10px)}
.at-card[data-state=wip] .at-wip{background:var(--paper-2);text-align:center;padding:0 10px}
.at-pv .at-wip small{font-size:12px;color:var(--ink-3)}
.at-card[data-state=wip] .nm b{color:var(--ink-2)}
.at-count{margin-top:10px;font-size:12px;letter-spacing:.08em;color:var(--ink-3)}
.at-tag{font-size:11px;color:var(--ink-3);border:1px dashed var(--ink-3);padding:1px 6px;white-space:nowrap}
.at-stage{display:grid;grid-template-columns:minmax(0,1fr) 380px;height:calc(100svh - 56px);min-height:560px;border-bottom:1px solid var(--ink)}
.at-vp{position:relative;overflow:hidden;user-select:none}
.at-vp canvas{position:absolute;inset:0;width:100%;height:100%;display:block;outline:none}
.at-poster{position:absolute;inset:8% 10% 14%;display:flex;align-items:center;justify-content:center;transition:opacity .5s}
.at-poster svg{width:100%;height:100%}
.at-vp.is-3d .at-poster{opacity:0;pointer-events:none}
.at-tb{position:absolute;left:18px;top:18px;z-index:3;border:1px solid var(--ink);background:var(--paper-2);min-width:220px;max-width:min(320px,60%)}
.at-tb>div{padding:7px 12px}
.at-tb>div+div{border-top:1px solid var(--rule)}
.at-tb .k{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--ink-3)}
.at-tb h1{font-size:22px;margin:0;line-height:1.3}
.at-tb .m{font-size:12px;color:var(--ink-2);display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.at-tools{position:absolute;right:18px;top:18px;z-index:3;display:flex;flex-direction:column;gap:0;border:1px solid var(--ink);background:var(--paper-2);width:168px}
.at-tools>*{padding:9px 12px}
.at-tools>*+*{border-top:1px solid var(--rule)}
.at-tools label{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--ink-2)}
.at-tools input[type=range]{width:100%;accent-color:var(--red);margin:6px 0 0}
.at-btn{font:inherit;font-size:13px;background:none;border:0;color:var(--ink);cursor:pointer;text-align:left;display:flex;justify-content:space-between;align-items:center;width:100%}
.at-btn:hover{color:var(--red-ink)}
.at-btn[aria-pressed=true]{color:var(--red-ink)}
.at-btn[aria-pressed=true]::after{content:"ON";font-family:var(--mono);font-size:10px}
.at-tabs{position:absolute;left:18px;bottom:18px;right:200px;z-index:3;display:flex;gap:0;overflow-x:auto;scrollbar-width:none}
.at-tabs button{font:inherit;flex:none;padding:8px 14px;border:1px solid var(--ink);background:var(--paper-2);color:var(--ink);cursor:pointer;display:flex;gap:8px;align-items:baseline}
.at-tabs button+button{border-left:0}
.at-tabs button b{font-family:var(--mono);font-size:11px;font-weight:400;color:var(--ink-3)}
.at-tabs button[aria-pressed=true]{background:var(--ink);color:var(--paper)}
.at-tabs button[aria-pressed=true] b{color:var(--yellow)}
.at-hint{position:absolute;right:18px;bottom:22px;z-index:2;font-family:var(--mono);font-size:11px;color:var(--ink-3)}
.at-hs{position:absolute;inset:0;pointer-events:none;z-index:2}
.at-idx{position:absolute;left:0;top:0;width:34px;height:34px;margin:-17px 0 0 -17px;border-radius:50%;border:1.5px solid var(--ink);background:var(--paper-2);color:var(--ink);pointer-events:auto;cursor:pointer;padding:0;display:grid;grid-template-rows:1fr 1fr;font-family:var(--mono);line-height:1;text-align:center;justify-items:center;transition:opacity .2s,background .2s,color .2s,transform .2s}
.at-idx::before{content:"";position:absolute;left:3px;right:3px;top:50%;border-top:1px solid currentColor}
.at-idx .n{font-size:12px;font-weight:700;align-self:end;padding-bottom:2px}
.at-idx .s{font-size:7.5px;align-self:start;padding-top:3px;letter-spacing:-.02em}
.at-idx:hover{transform:scale(1.12)}
.at-idx.is-on{background:var(--red);border-color:var(--red);color:#fff;transform:scale(1.18)}
.at-idx.is-hid{opacity:.28}
.at-idx.is-out{display:none}
.at-idx:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
.at-load{position:absolute;left:50%;bottom:72px;transform:translateX(-50%);z-index:3;font-family:var(--mono);font-size:12px;color:var(--ink-2);background:var(--paper-2);border:1px solid var(--ink);padding:8px 14px;min-width:220px}
.at-load i{display:block;height:2px;background:var(--rule);margin-top:6px}
.at-load i b{display:block;height:100%;width:0;background:var(--red);transition:width .2s}
.at-go{font:inherit;font-size:15px;padding:11px 22px;border:0;background:var(--btn-bg);color:#fff;cursor:pointer}
.at-lock{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:4;width:min(420px,88%);background:var(--paper-2);border:1px solid var(--ink);padding:22px 24px;box-shadow:8px 8px 0 var(--ink)}
.at-lock h2{font-size:19px;margin:6px 0 8px}
.at-lock p{font-size:14px;color:var(--ink-2);line-height:1.7;margin:0 0 14px}
.at-lock .row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.at-lock a.at-sec{font-size:14px;color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.at-panel{border-left:1px solid var(--ink);background:var(--paper-2);display:flex;flex-direction:column;min-height:0}
.at-ph{padding:16px 20px;border-bottom:1px solid var(--ink);display:flex;justify-content:space-between;align-items:baseline}
.at-ph b{font-size:15px}
.at-ph span{font-family:var(--mono);font-size:11px;color:var(--ink-3)}
.at-pb{flex:1;overflow:auto;padding:0}
.at-lede2{padding:16px 20px;color:var(--ink-2);font-size:14px;line-height:1.8;border-bottom:1px solid var(--rule);margin:0}
.at-list{list-style:none;margin:0;padding:0}
.at-list button{font:inherit;width:100%;display:grid;grid-template-columns:34px 1fr auto;gap:12px;align-items:center;padding:11px 20px;background:none;border:0;border-bottom:1px solid var(--rule);color:var(--ink);cursor:pointer;text-align:left}
.at-list button:hover{background:var(--paper)}
.at-list .at-idx{position:relative;margin:0;pointer-events:none;width:30px;height:30px}
.at-list small{font-family:var(--mono);font-size:11px;color:var(--ink-3)}
.at-kc{padding:18px 20px 24px}
.at-kc .back{font:inherit;font-size:13px;background:none;border:0;color:var(--ink-3);cursor:pointer;padding:0;margin-bottom:14px}
.at-kc .back:hover{color:var(--ink)}
.at-kc .hd{display:flex;gap:14px;align-items:center;margin-bottom:14px}
.at-kc .hd .at-idx{position:relative;margin:0;width:44px;height:44px;pointer-events:none}
.at-kc .hd .at-idx .n{font-size:15px}.at-kc .hd .at-idx .s{font-size:9px}
.at-kc h2{font-size:22px;margin:0}
.at-core{font-size:17px;line-height:1.75;font-weight:600;margin:0 0 14px;padding-left:12px;border-left:4px solid var(--red)}
.at-pts{margin:0 0 16px;padding:0;list-style:none;counter-reset:p}
.at-pts li{counter-increment:p;position:relative;padding:8px 0 8px 30px;border-top:1px solid var(--rule);font-size:14px;line-height:1.75;color:var(--ink-2)}
.at-pts li::before{content:counter(p,decimal-leading-zero);position:absolute;left:0;top:9px;font-family:var(--mono);font-size:11px;color:var(--ink-3)}
.at-src{font-size:12px;color:var(--ink-3);line-height:1.7;border-top:1px solid var(--ink);padding-top:10px}
.at-nav{display:flex;justify-content:space-between;gap:10px;margin-top:18px}
.at-nav button{font:inherit;font-size:13px;flex:1;padding:9px 10px;border:1px solid var(--ink);background:none;color:var(--ink);cursor:pointer}
.at-nav button:hover:not(:disabled){background:var(--ink);color:var(--paper)}
.at-nav button:disabled{opacity:.35;cursor:default}
.at-pf{padding:12px 20px;border-top:1px solid var(--rule);font-size:12px;color:var(--ink-3);line-height:1.7}
.at-locked-note{padding:14px 20px;font-size:13px;color:var(--ink-2);background:var(--paper-3)}
html.dark .at-tb,html.dark .at-tools,html.dark .at-tabs button,html.dark .at-lock,html.dark .at-load{border-color:var(--rule)}
html.dark .at-lock{box-shadow:none}
html.dark .at-grid,html.dark .at-card{border-color:var(--rule)}
html.dark .at-panel,html.dark .at-ph,html.dark .at-stage{border-color:var(--rule)}
html.dark .at-tabs button[aria-pressed=true]{background:var(--paper-3);color:var(--blue)}
html.dark .at-idx{border-color:var(--blue);color:var(--blue);background:var(--paper)}
html.dark .at-idx.is-on{background:var(--red);border-color:var(--red);color:#fff}
@media (max-width:900px){
.at-stage{grid-template-columns:1fr;height:auto;min-height:0}
.at-vp{height:62svh;min-height:380px}
.at-panel{border-left:0;border-top:1px solid var(--ink)}
.at-tb{left:10px;top:10px;min-width:0;max-width:calc(100% - 20px)}
.at-tb .k{display:none}
.at-tb h1{font-size:17px}
.at-tb>div{padding:5px 9px}
.at-tb>div:first-child+div{border-top:0}
.at-tools{left:10px;right:10px;top:auto;bottom:54px;width:auto;flex-direction:row}
.at-tools>*{padding:6px 9px;flex:1;min-width:0}
.at-tools>*+*{border-top:0;border-left:1px solid var(--rule)}
.at-tools>:last-child{flex:none}
.at-tools label span:last-child{display:none}
.at-tools input[type=range]{margin-top:3px}
.at-btn .at-mono{display:none}
.at-tabs{left:10px;right:10px;bottom:10px}
.at-tabs button{padding:7px 10px;font-size:13px}
.at-hint{display:none}
.at-load{bottom:60px}
}
@media (prefers-reduced-motion:reduce){.at-idx,.at-pv svg,.at-poster{transition:none}}
.is-locked .at-tools,.is-locked .at-tabs,.is-locked .at-hint{display:none}
.at-poster .dp .al,.at-pv .dp .al{opacity:1}
@media(max-width:640px){.at-seg{max-width:100%;overflow-x:auto}.at-seg button{white-space:nowrap;flex:0 0 auto}}