@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700&family=Noto+Serif+JP:wght@400;500;600;700&display=swap');
:root{--ink:#242126;--paper:#f8f7f5;--line:#d6d0d5;--pink:#d44c83}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.95 'Noto Sans JP',sans-serif}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid var(--pink);outline-offset:4px}p,h1,h2,h3{margin:0}h1,h2{font-family:'Noto Serif JP',serif}.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:10px;z-index:10}.skip:focus{left:10px}
.masthead{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:10px clamp(20px,4vw,70px);background:#211e23;color:#fff;border-bottom:1px solid #544951}.brand{display:flex;align-items:center;gap:12px;flex:none}.brand-mark{width:39px;height:39px;border:1px solid #b17b95;display:grid;place-items:center;font-size:14px;font-weight:700;letter-spacing:-.08em}.brand-mark span{color:#f489b4}.brand-name{font-size:16px;font-weight:700;letter-spacing:.17em;line-height:1.25}.brand-name small{display:block;margin-top:3px;font-size:10px;letter-spacing:.14em;color:#cabac3}.masthead nav{display:flex;align-items:center;gap:clamp(13px,1.8vw,28px);font-size:14px;white-space:nowrap}.masthead nav a:hover,.masthead nav .external-link{color:#f2a1c2}.masthead nav .external-link{padding:6px 10px;border:1px solid #a6758e}
.hero{background:#181519;color:white}.keyvisual{background:#292529;border-bottom:1px solid #765367}.keyvisual img{display:block;width:100%;max-width:1600px;height:auto;margin:auto}.hero-inner{max-width:1200px;margin:auto;padding:72px 45px 43px;display:grid;grid-template-columns:1fr 1fr;gap:0 6vw}.eyebrow{grid-column:1/-1;display:flex;align-items:center;gap:14px;color:#e4a6be;font-size:12px;font-weight:700;letter-spacing:.17em}.line{width:34px;height:1px;background:#e4a6be}.hero h1{font-size:clamp(2.5rem,4.5vw,4.6rem);line-height:1.5;font-weight:500;letter-spacing:.1em;margin:24px 0 0}.hero h1 em{font-style:normal;color:#eca2c0}.hero-inner>p{align-self:center;color:#e4dce2;font:400 17px/2.2 'Noto Serif JP',serif;letter-spacing:.03em;margin-top:17px}.hero-actions{grid-column:1/-1;display:flex;align-items:center;gap:20px 35px;flex-wrap:wrap;margin-top:45px}.primary{display:inline-flex;justify-content:space-between;gap:35px;min-width:235px;padding:13px 18px;border:1px solid #e77ba9;background:#9e2e60;color:white;font-weight:700}.primary:hover{background:#c04379}.secondary{display:inline-flex;gap:20px;padding:10px 0;border-bottom:1px solid #a18a97;color:#f4eaf0}.secondary:hover{color:#f3a4c5}.hero-index{grid-column:1/-1;display:flex;justify-content:space-between;gap:12px;margin-top:69px;padding-top:16px;border-top:1px solid #6e5868;font-size:12px;letter-spacing:.12em;color:#cbb7c3}
.layout{max-width:1250px;margin:auto;padding:0 42px;display:grid;grid-template-columns:205px minmax(0,1fr);gap:clamp(38px,5vw,85px)}.side{position:sticky;top:20px;align-self:start;padding:82px 0}.side-title{display:block;margin-bottom:24px;color:#945a75;font-size:12px;font-weight:700;letter-spacing:.22em}.side a{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;font-weight:600}.side a:hover{color:#a42c63}.side p{margin-top:28px;color:#6f686f;font-size:13px;line-height:1.8}.section{padding:100px 0 110px;border-bottom:1px solid #c7bfc5;scroll-margin-top:25px}.section-id{color:#a43568;font-size:12px;font-weight:700;letter-spacing:.2em;margin-bottom:20px}.section h2{font-size:clamp(2.1rem,3.2vw,3.2rem);line-height:1.45;letter-spacing:.08em;margin-bottom:30px}.section h2:after{content:'';display:block;width:54px;height:2px;margin-top:25px;background:#a93769}.lead{max-width:780px;margin-bottom:43px;font:400 19px/2.05 'Noto Serif JP',serif}.section h3{font-size:1.1rem;line-height:1.6}
.feature-grid,.relation-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.feature,.relation-grid article{padding:28px 22px 33px;border-right:1px solid var(--line)}.feature:first-child,.relation-grid article:first-child{padding-left:0}.feature:last-child,.relation-grid article:last-child{border-right:0}.feature b,.relation-grid span{font-size:13px;color:#a43568;letter-spacing:.12em}.feature h3{margin:25px 0 10px}.relation-grid h3{margin:12px 0}.feature p,.relation-grid p,.world-list p,.timeline p{color:#514c52;font-size:16px;line-height:1.95}.note{display:grid;grid-template-columns:145px 1fr;gap:20px;padding:22px 0;margin-top:38px;border-top:1px solid #b99baa;border-bottom:1px solid #b99baa;font-size:15px}.note strong{color:#96365f}.bureau-logo{width:min(100%,270px);margin:15px auto 60px}.bureau-logo img{display:block;width:100%;height:auto}.bureau-logo figcaption{text-align:center;font-size:12px;line-height:1.5;color:#595d65;letter-spacing:.08em}.world-list article{display:grid;grid-template-columns:60px 1fr;gap:18px;padding:27px 0;border-top:1px solid var(--line)}.world-list article:last-child{border-bottom:1px solid var(--line)}.world-list .num{color:#a43568;font-size:15px}.world-list h3{margin-bottom:8px}blockquote{margin:58px 0 0;padding:48px 32px;background:#242126;color:white;border-top:2px solid #c84b81;text-align:center;font:500 clamp(1.2rem,2vw,1.55rem)/2 'Noto Serif JP',serif}
.timeline{border-top:1px solid var(--line)}.timeline>div{display:grid;grid-template-columns:145px 1fr;gap:0 22px;padding:23px 0;border-bottom:1px solid var(--line)}.timeline span{grid-row:span 2;color:#a03564;font-size:13px;font-weight:700}.timeline h3{margin-bottom:6px}.subtle{margin-top:24px;color:#5d565e;font-size:14px}.battle-panel{padding:38px 42px;background:#242126;color:#f6f0f4;border-top:3px solid #d45a91}.battle-top{display:grid;grid-template-columns:1fr 1fr;gap:39px;padding-bottom:32px;border-bottom:1px solid #6b5865}.kicker{color:#f1a0c0;font-size:12px;font-weight:700;letter-spacing:.13em}.battle-top h3{margin:10px 0;color:white}.battle-top p{color:#e2d9df;font-size:15px}.formula{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;padding-top:32px}.formula>div{padding-left:15px;border-left:1px solid #d66b99}.formula span{display:block;color:#f3a6c6;font-size:14px;font-weight:700}.formula strong{display:block;margin:11px 0;font-size:16px;line-height:1.6;overflow-wrap:anywhere}.formula small{display:block;color:#e2d9df;font-size:13px;line-height:1.7}.minor-heading{margin:40px 0 12px}.rules{list-style:none;margin:0;padding:0}.rules li{display:grid;grid-template-columns:125px 1fr;gap:14px;padding:15px 0;border-bottom:1px solid var(--line);font-size:16px}.rules b{color:#9b3561}.glossary{margin:0}.glossary div{display:grid;grid-template-columns:135px 1fr;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}.glossary dt{font-weight:700}.glossary dd{margin:0;color:#514c52}footer{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:45px max(42px,calc((100vw - 1165px)/2));background:#211e23;color:#eee3e9;font-size:14px}footer a{color:#f2a8c7}.footer-brand img{display:block;width:105px;height:auto;margin-bottom:12px}.footer-brand span{font-size:11px;letter-spacing:.18em}
@media(max-width:1000px){.masthead{display:block}.masthead nav{overflow-x:auto;padding-top:10px;padding-bottom:3px}.layout{grid-template-columns:1fr;gap:0}.side{position:static;display:flex;flex-wrap:wrap;align-items:center;gap:3px 18px;padding:26px 0;border-bottom:1px solid var(--line)}.side-title{width:100%;margin-bottom:0}.side a{border:0;padding:5px 0}.side p{display:none}.section{padding:74px 0 83px}}
@media(max-width:700px){html{scroll-padding-top:25px}.masthead{padding:13px 19px}.masthead nav{gap:18px;font-size:14px}.masthead nav .external-link{padding:4px 8px}.hero-inner{display:block;padding:43px 23px 30px}.eyebrow{font-size:11px;letter-spacing:.1em}.hero h1{font-size:clamp(2.3rem,9vw,3.7rem);margin:20px 0 24px}.hero-inner>p{font-size:16px;line-height:2.05;margin:0}.hero-actions{margin-top:30px;gap:12px 22px}.hero-index{margin-top:44px;font-size:11px;letter-spacing:.05em}.layout{padding:0 23px}.side{gap:4px 15px}.side a{font-size:14px}.section{padding:62px 0 74px}.section h2{font-size:2.1rem}.lead{font-size:17px;line-height:1.95}.feature-grid,.relation-grid{display:block}.feature,.relation-grid article,.feature:first-child,.relation-grid article:first-child{padding:23px 0;border-right:0;border-bottom:1px solid var(--line)}.feature:last-child,.relation-grid article:last-child{border-bottom:0}.feature h3{margin:8px 0}.note{display:block;padding:19px 0}.note strong{display:block;margin-bottom:5px}.timeline>div{grid-template-columns:1fr;gap:3px}.timeline span{grid-row:auto}.bureau-logo{width:220px}.battle-panel{padding:27px 23px}.battle-top,.formula{grid-template-columns:1fr;gap:23px}.battle-top{padding-bottom:28px}.formula{padding-top:27px}.rules li,.glossary div{grid-template-columns:1fr;gap:2px}.world-list article{grid-template-columns:36px 1fr;gap:10px}blockquote{padding:34px 21px;margin-top:40px}footer{display:block;padding:38px 23px}footer p{margin:13px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}