:root{color-scheme:dark;--c-navy-deep: #042c53;--c-navy: #0c447c;--c-abyss: #02172e;--c-text: #e6f1fb;--c-text-sub: #a9c8e8;--c-blue-pale: #85b7eb;--c-accent: #fff33f;--c-accent-ink: #211f00;--c-heat: #ffb43a;--line-soft: color-mix(in srgb, var(--c-blue-pale) 18%, transparent);--line: color-mix(in srgb, var(--c-blue-pale) 32%, transparent);--line-strong: color-mix(in srgb, var(--c-blue-pale) 55%, transparent);--panel: color-mix(in srgb, var(--c-navy) 34%, transparent);--panel-solid: #0a3a6b;--scrim: color-mix(in srgb, var(--c-abyss) 72%, transparent);--surface-elevated: color-mix(in srgb, var(--c-navy) 86%, var(--c-abyss));--surface-slip: color-mix(in srgb, var(--c-navy) 30%, transparent);--font-display: "Zen Old Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;--font-body: "Noto Sans JP Variable", "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;--fs-hero: clamp(2.9rem, 1.2rem + 7.4vw, 6.4rem);--fs-h2: clamp(1.9rem, 1.2rem + 2.4vw, 3rem);--fs-h3: clamp(1.2rem, 1rem + .8vw, 1.5rem);--fs-body: 1rem;--fs-small: .9rem;--fs-micro: .78rem;--tracking-wide: .35em;--tracking-label: .22em;--space-section: clamp(5.5rem, 4rem + 6vw, 9.5rem);--content-w: 1060px;--c-seal: #e25d4a;--radius: 3px;--noise: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.045'/%3E%3C/svg%3E");--ease-out: ease-out;--dur: .9s;--dur-feedback: .15s;--z-header: 10;--z-grain: 100;--z-player: 101;--z-dock: 120;--z-switcher: 150;--z-skip: 160;--z-seal: 200;--z-fx-veil: 205;--z-fx-edge: 210;--z-fx-cutin: 212;--z-fx-crab: 218;--z-fx-takeover: 219;--bg-glow-top: color-mix(in srgb, var(--c-navy) 55%, transparent);--bg-glow-bottom: color-mix(in srgb, var(--c-abyss) 85%, transparent)}:root[data-theme=cinema]{--font-display: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", serif;--c-navy-deep: #191210;--c-navy: #4a3521;--c-abyss: #0d0806;--c-text: #f3e9d8;--c-text-sub: #cdb794;--c-blue-pale: #d8b478;--c-accent: #f2b23e;--c-accent-ink: #241900;--panel-solid: #33251a}:root[data-theme=retrofuture]{--font-display: "DotGothic16", "Hiragino Kaku Gothic ProN", sans-serif;--c-navy-deep: #0b0d10;--c-navy: #2b3a44;--c-abyss: #030507;--c-text: #e8eef1;--c-text-sub: #a3b6c0;--c-blue-pale: #93b0be;--c-accent: #3ddc64;--c-accent-ink: #03210c;--panel-solid: #1a242c;--rf-red: #ff5f52;--rf-amber: #ffb642}:root[data-theme=spaceopera]{--font-display: "Orbitron", "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;--c-navy-deep: #020208;--c-navy: #123048;--c-abyss: #010105;--c-text: #eef4ff;--c-text-sub: #a9c4d8;--c-blue-pale: #4bd5ee;--c-accent: #ffe81f;--c-accent-ink: #1f1a00;--panel-solid: #0a1a2a}:root[data-theme=yurukawa]{color-scheme:light;--c-navy-deep: #fffdf8;--c-navy: #d9c3b4;--c-abyss: #4a3b32;--c-text: #4a3b32;--c-text-sub: #7c685a;--c-blue-pale: #7d5e4a;--c-accent: #c13e66;--c-accent-ink: #fff8f6;--c-heat: #a06000;--panel-solid: #fffefb;--surface-elevated: #fbf6ee;--font-display: "Yusei Magic", "Hiragino Maru Gothic ProN", "Yu Gothic", sans-serif;--bg-glow-top: color-mix(in srgb, #ffffff 70%, transparent);--bg-glow-bottom: color-mix(in srgb, #cfe8f4 55%, transparent);--yuru-sky: #a5d8ee;--yuru-cheek: #f6cdd8}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background-color:var(--c-navy-deep);background-image:radial-gradient(120% 90% at 50% 0%,var(--bg-glow-top) 0%,transparent 62%),radial-gradient(90% 70% at 85% 100%,var(--bg-glow-bottom) 0%,transparent 60%);color:var(--c-text);font-family:var(--font-body);font-size:var(--fs-body);line-height:1.9;letter-spacing:.02em;font-feature-settings:"palt" 1;overflow-x:hidden}:root[data-theme=spaceopera] body{background-image:radial-gradient(1.2px 1.2px at 22% 28%,rgba(255,255,255,.55) 50%,transparent 100%),radial-gradient(1px 1px at 68% 12%,rgba(255,255,255,.4) 50%,transparent 100%),radial-gradient(1.5px 1.5px at 84% 62%,rgba(255,235,190,.5) 50%,transparent 100%),radial-gradient(1px 1px at 42% 78%,rgba(255,255,255,.35) 50%,transparent 100%),radial-gradient(1px 1px at 8% 55%,rgba(200,210,255,.4) 50%,transparent 100%),url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='900' height='900' viewBox='0 0 900 900'%3E%3Cg fill='none' stroke='%234bd5ee' stroke-opacity='0.055'%3E%3Ccircle cx='450' cy='450' r='430'/%3E%3Ccircle cx='450' cy='450' r='300' stroke-dasharray='2 10'/%3E%3Ccircle cx='450' cy='450' r='170'/%3E%3Cpath d='M450 20v860M20 450h860M146 146l608 608M754 146L146 754'/%3E%3Ccircle cx='450' cy='450' r='60' stroke-opacity='0.08'/%3E%3C/g%3E%3C/svg%3E"),radial-gradient(120% 90% at 50% 0%,var(--bg-glow-top) 0%,transparent 62%),radial-gradient(90% 70% at 85% 100%,var(--bg-glow-bottom) 0%,transparent 60%);background-size:420px 420px,340px 340px,520px 520px,380px 380px,460px 460px,min(140vmin,1240px) min(140vmin,1240px),100% 100%,100% 100%;background-position:0 0,0 0,0 0,0 0,0 0,82% -22%,0 0,0 0;background-repeat:repeat,repeat,repeat,repeat,repeat,no-repeat,no-repeat,no-repeat}body:before{content:"";position:fixed;inset:0;background-image:var(--noise);pointer-events:none;z-index:var(--z-grain)}lite-youtube.lyt-activated{position:relative;z-index:var(--z-player)}img,svg{display:block;max-width:100%}a{color:inherit;text-decoration-color:var(--line-strong);text-underline-offset:.25em}a:hover{text-decoration-color:var(--c-blue-pale)}h1,h2,h3{font-family:var(--font-display);font-weight:700;line-height:1.35;text-wrap:balance}p{text-wrap:pretty}::selection{background:var(--c-accent);color:var(--c-accent-ink)}:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px}.skip-link{position:fixed;top:calc(.8rem + env(safe-area-inset-top,0px));left:calc(.8rem + env(safe-area-inset-left,0px));z-index:var(--z-skip);background:var(--c-accent);color:var(--c-accent-ink);padding:.5em 1.1em;border-radius:2px;font-weight:700;text-decoration:none;transform:translateY(-200%)}.skip-link:focus-visible{transform:none}.container{width:min(var(--content-w),calc(100% - 2.5rem));margin-inline:auto}.section{padding-block:var(--space-section);position:relative}[id]{scroll-margin-top:1.2rem}.subpage{padding-top:calc(clamp(8rem,7rem + 1.5vw,8.75rem) + env(safe-area-inset-top,0px))}.subpage>.section:first-child{padding-top:0}@media(max-width:1080px){.subpage{padding-top:calc(12rem + env(safe-area-inset-top,0px))}}@media(max-width:760px){.subpage{padding-top:calc(10.5rem + env(safe-area-inset-top,0px))}}.panel{position:relative;background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius)}.panel:before,.panel:after,.panel>.tick:before,.panel>.tick:after{content:"";position:absolute;width:9px;height:9px;border-color:var(--line-strong);border-style:solid;border-width:0}.panel:before{top:-1px;left:-1px;border-top-width:1px;border-left-width:1px}.panel:after{top:-1px;right:-1px;border-top-width:1px;border-right-width:1px}.panel>.tick:before{bottom:-1px;left:-1px;border-bottom-width:1px;border-left-width:1px}.panel>.tick:after{bottom:-1px;right:-1px;border-bottom-width:1px;border-right-width:1px}.chip-heat{padding:.1em .5em .16em;border:1px solid color-mix(in srgb,var(--c-heat) 55%,transparent);border-radius:3px;font-weight:600;letter-spacing:.2em;color:var(--c-heat)}.chip-heat[data-tier=warm]{border-color:var(--line-strong);color:var(--c-text-sub)}.ember{width:7px;height:7px;border-radius:50%;background:var(--c-heat);animation:ember-glow 2.4s ease-in-out infinite}@keyframes ember-glow{0%,to{opacity:1}50%{opacity:.35}}@media(prefers-reduced-motion:reduce){.ember{animation:none}}.label{font-family:var(--font-body);font-size:var(--fs-micro);font-weight:500;letter-spacing:var(--tracking-label);text-transform:uppercase;color:var(--c-blue-pale)}.chip{display:inline-block;padding:.1em .75em .14em;border:1px solid var(--line);border-radius:2px;font-size:var(--fs-micro);letter-spacing:.14em;color:var(--c-text-sub);white-space:nowrap}.chip-feat{border-color:color-mix(in srgb,var(--c-accent) 55%,transparent);color:var(--c-accent)}.js .reveal{opacity:0;transform:translateY(26px);transition:opacity var(--dur) var(--ease-out),transform var(--dur) var(--ease-out);transition-delay:var(--reveal-delay, 0s)}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.js .reveal.is-visible{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.js .reveal{opacity:1;transform:none;transition:none}*,*:before,*:after{animation-duration:1ms!important;animation-iteration-count:1!important}}:root[data-theme=cinema]{--radius: 2px}:root[data-theme=cinema] body:before{background-image:repeating-linear-gradient(0deg,rgba(0,0,0,.13) 0 1px,transparent 1px 3px),var(--noise)}:root[data-theme=cinema] body:after{content:"";position:fixed;inset:0;pointer-events:none;z-index:var(--z-grain);--sprocket: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='30' height='46'%3E%3Crect width='30' height='46' fill='%230d0806'/%3E%3Crect x='9' y='15' width='12' height='16' rx='3' fill='%23191210' stroke='%23d8b478' stroke-opacity='.25'/%3E%3C/svg%3E");background-image:radial-gradient(120% 88% at 50% 40%,transparent 52%,rgba(10,5,2,.52) 100%),var(--sprocket),var(--sprocket);background-repeat:no-repeat,repeat-y,repeat-y;background-position:center,left top,right top;background-size:100% 100%,30px 46px,30px 46px}@media(max-width:1320px){:root[data-theme=cinema] body:after{background-image:radial-gradient(120% 88% at 50% 40%,transparent 52%,rgba(10,5,2,.52) 100%);background-size:100% 100%}}:root[data-theme=cinema] .panel{outline:1px solid color-mix(in srgb,var(--c-blue-pale) 22%,transparent);outline-offset:-8px}:root[data-theme=cinema] .panel:before,:root[data-theme=cinema] .panel:after,:root[data-theme=cinema] .panel>.tick:before,:root[data-theme=cinema] .panel>.tick:after{width:5px;height:5px;border-width:0;border-radius:50%;background:var(--c-accent);box-shadow:0 0 7px color-mix(in srgb,var(--c-accent) 75%,transparent);opacity:.85}:root[data-theme=cinema] .sec-rule{height:7px;background:repeating-linear-gradient(0deg,var(--line-strong) 0 1px,transparent 1px 3px)}:root[data-theme=cinema] .sec-no:before,:root[data-theme=cinema] .sec-no:after{content:"◆" / "";font-size:.6em;color:var(--c-accent);opacity:.75}:root[data-theme=cinema] .sec-no:before{margin-right:.7em}:root[data-theme=cinema] .sec-no:after{margin-left:.7em}:root[data-theme=cinema] .sec-class{background:color-mix(in srgb,var(--c-navy) 38%,transparent);border-inline-start:1px dashed color-mix(in srgb,var(--c-blue-pale) 60%,transparent);mask:radial-gradient(circle 4px at 0 50%,transparent 3.5px,#000 4px)}:root[data-theme=cinema] h1,:root[data-theme=cinema] h2{text-shadow:0 0 22px color-mix(in srgb,var(--c-accent) 26%,transparent)}:root[data-theme=cinema] .chip{border:1px solid var(--line);border-inline-start:1px dashed var(--line-strong);border-radius:2px 3px 3px 2px;background:color-mix(in srgb,var(--c-navy) 30%,transparent);padding-block:.1em .14em}:root[data-theme=cinema] .site-head-inner{border-bottom-color:transparent;background:linear-gradient(90deg,transparent 4%,color-mix(in srgb,var(--c-accent) 38%,transparent) 50%,transparent 96%) left bottom / 100% 1px no-repeat,radial-gradient(circle 1.3px at 7px 2.5px,color-mix(in srgb,var(--c-accent) 45%,transparent) 98%,transparent) left bottom / 16px 5px repeat-x}:root[data-theme=retrofuture]{--radius: 0px}:root[data-theme=retrofuture] body{background-image:radial-gradient(120% 90% at 50% 0%,var(--bg-glow-top) 0%,transparent 62%),radial-gradient(90% 70% at 85% 100%,var(--bg-glow-bottom) 0%,transparent 60%),url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cg fill='none' stroke='%2393b0be' stroke-opacity='0.07'%3E%3Cpath d='M0 65h95v65h70V65h95M65 0v48M195 260v-48M130 130v65h65'/%3E%3C/g%3E%3Cg fill='%2393b0be' fill-opacity='0.18'%3E%3Ccircle cx='95' cy='65' r='1.7'/%3E%3Ccircle cx='165' cy='130' r='1.7'/%3E%3Ccircle cx='65' cy='48' r='1.7'/%3E%3Ccircle cx='195' cy='212' r='1.7'/%3E%3C/g%3E%3C/svg%3E");background-size:100% 100%,100% 100%,260px 260px}:root[data-theme=retrofuture] body:before{background-image:repeating-linear-gradient(180deg,transparent 0 2px,rgba(1,5,10,.12) 2px 3px),var(--noise)}:root[data-theme=retrofuture] .panel{background:linear-gradient(90deg,color-mix(in srgb,var(--c-blue-pale) 22%,transparent) 0,color-mix(in srgb,var(--c-blue-pale) 22%,transparent) 1px,transparent 1px) no-repeat 10px 0 / 1px 100%,var(--panel);box-shadow:inset 0 1px color-mix(in srgb,var(--c-blue-pale) 10%,transparent)}:root[data-theme=retrofuture] .panel:before,:root[data-theme=retrofuture] .panel:after,:root[data-theme=retrofuture] .panel>.tick:before,:root[data-theme=retrofuture] .panel>.tick:after{width:13px;height:13px;border-color:var(--c-blue-pale);filter:drop-shadow(0 0 4px color-mix(in srgb,var(--c-blue-pale) 60%,transparent))}:root[data-theme=retrofuture] .panel:before{border-top-width:2px;border-left-width:2px}:root[data-theme=retrofuture] .panel:after{border-top-width:2px;border-right-width:2px}:root[data-theme=retrofuture] .panel>.tick:before{border-bottom-width:2px;border-left-width:2px}:root[data-theme=retrofuture] .panel>.tick:after{border-bottom-width:2px;border-right-width:2px}:root[data-theme=retrofuture] .sec-rule{height:5px;background:radial-gradient(circle 2.5px at 2.5px 50%,var(--c-blue-pale) 55%,transparent 60%) no-repeat,radial-gradient(circle 2.5px at calc(100% - 2.5px) 50%,var(--c-blue-pale) 55%,transparent 60%) no-repeat,linear-gradient(90deg,var(--c-blue-pale),color-mix(in srgb,var(--c-blue-pale) 20%,transparent)) no-repeat 0 50% / 100% 1px}:root[data-theme=retrofuture] .sec-class{color:var(--rf-red);border-color:color-mix(in srgb,var(--rf-red) 55%,transparent);box-shadow:inset 0 0 8px color-mix(in srgb,var(--rf-red) 14%,transparent),0 0 10px color-mix(in srgb,var(--rf-red) 14%,transparent)}:root[data-theme=retrofuture] h1,:root[data-theme=retrofuture] h2{text-shadow:0 0 16px color-mix(in srgb,var(--c-blue-pale) 34%,transparent)}:root[data-theme=retrofuture] .sec-title{text-shadow:0 0 1px color-mix(in srgb,var(--c-text) 55%,transparent),0 0 18px color-mix(in srgb,var(--c-blue-pale) 22%,transparent)}:root[data-theme=retrofuture] ::selection{background:color-mix(in srgb,var(--c-accent) 85%,#0b5c26);color:var(--c-accent-ink)}:root[data-theme=retrofuture] .site-head-inner{position:relative}:root[data-theme=retrofuture] .site-head-inner:after{content:"";position:absolute;bottom:0;left:0;width:240px;height:1px;pointer-events:none;background:linear-gradient(90deg,transparent,var(--rf-amber) 40%,#fff3d6 50%,var(--rf-amber) 60%,transparent);transform:translate(-240px);animation:rf-pulse 7s linear infinite}@keyframes rf-pulse{to{transform:translate(calc(100vw + 240px))}}:root[data-theme=retrofuture] .chip{border-radius:0}:root[data-theme=retrofuture] .label{font-family:ui-monospace,SF Mono,Menlo,monospace;background:#16181b;color:#f2f5f0;padding:.12em .6em .16em;border-radius:2px;box-shadow:inset 0 1px #ffffff1f,inset 0 -1px #0009,0 1px 1px #00000080}:root[data-theme=spaceopera] body:after{content:"";position:fixed;inset:-12%;z-index:-1;pointer-events:none;background-image:radial-gradient(1px 1px at 12% 34%,rgba(255,255,255,.5) 50%,transparent 100%),radial-gradient(1.4px 1.4px at 56% 72%,rgba(214,226,255,.45) 50%,transparent 100%),radial-gradient(1px 1px at 82% 18%,rgba(255,240,200,.4) 50%,transparent 100%);background-size:560px 560px,640px 640px,480px 480px;animation:mmnt-warp-drift 160s linear infinite alternate}@keyframes mmnt-warp-drift{to{transform:translate3d(-2.2%,3%,0)}}:root[data-theme=spaceopera] .panel{border-color:color-mix(in srgb,var(--c-blue-pale) 38%,transparent);border-top:3px double color-mix(in srgb,var(--c-blue-pale) 55%,transparent);background:repeating-linear-gradient(180deg,color-mix(in srgb,var(--c-blue-pale) 4%,transparent) 0 1px,transparent 1px 4px),color-mix(in srgb,var(--c-navy) 30%,transparent);outline:1px solid color-mix(in srgb,var(--c-blue-pale) 14%,transparent);outline-offset:5px;box-shadow:0 0 18px color-mix(in srgb,var(--c-blue-pale) 7%,transparent)}:root[data-theme=spaceopera] .panel:before,:root[data-theme=spaceopera] .panel:after,:root[data-theme=spaceopera] .panel>.tick:before,:root[data-theme=spaceopera] .panel>.tick:after{width:7px;height:7px;border-width:0;background:var(--c-accent);transform:rotate(45deg);box-shadow:0 0 8px color-mix(in srgb,var(--c-accent) 55%,transparent);opacity:.8}:root[data-theme=spaceopera] h1,:root[data-theme=spaceopera] h2{color:var(--c-accent);letter-spacing:.1em;text-shadow:0 2px 0 rgba(0,0,0,.65)}:root[data-theme=spaceopera] .sec-no{color:var(--c-accent)}:root[data-theme=spaceopera] .sec-rule{height:5px;background:radial-gradient(circle 2.5px at right center,var(--c-accent) 45%,transparent 65%),repeating-linear-gradient(90deg,var(--line-strong) 0 6px,transparent 6px 12px);background-size:100% 100%,100% 1px;background-position:center,center;background-repeat:no-repeat}:root[data-theme=spaceopera] .sec-class{border:0;padding-inline:1.15em;color:var(--c-accent-ink);background:var(--c-accent);clip-path:polygon(.55em 0,calc(100% - .55em) 0,100% 50%,calc(100% - .55em) 100%,.55em 100%,0 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