:root{--rose:#AB8B8C;--rose-dark:#8a6e6f;--rose-light:#E8DEDE;--rose-bg:#FAF8F8;--paper:#FCFAF9;--text:#4d4343;--text-light:#8a7a7a;--dark:#2E1E1E;--ink:#1f1618;--gold:#c9a36b;--serif:'Noto Serif JP','EB Garamond',serif;--en:'Cormorant Infant','EB Garamond',serif;--sans:'Noto Sans JP',sans-serif}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:var(--serif);font-size:16px;line-height:1.9;color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
/* header */
.rp-header{position:fixed;inset:0 0 auto 0;z-index:50;height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;background:rgba(31,22,24,.92);backdrop-filter:blur(10px);color:#fff}
.rp-header__logo{font-family:var(--en);font-size:20px;letter-spacing:.12em;line-height:1.2}
.rp-header__logo small{display:block;font-size:10px;letter-spacing:.2em;color:var(--rose-light);opacity:.75}
.rp-header nav{display:flex;gap:28px;align-items:center;font-family:var(--en);font-size:14px;letter-spacing:.14em}
.rp-header nav a{opacity:.8;transition:opacity .2s}.rp-header nav a:hover,.rp-header nav a.is-on{opacity:1;color:var(--gold)}
.rp-header .rp-cta{border:1px solid rgba(255,255,255,.4);padding:6px 18px;border-radius:2px;font-family:var(--serif);font-size:12px;letter-spacing:.2em}
.rp-progress{position:fixed;top:64px;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--rose),var(--gold));z-index:51}
/* hero */
.rp-hero{position:relative;background:radial-gradient(1200px 500px at 85% -10%,rgba(201,163,107,.18),transparent 60%),linear-gradient(160deg,#1f1618,#3a2527 70%,#2E1E1E);color:#fff;padding:150px 32px 84px;overflow:hidden}
.rp-hero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 119px,rgba(255,255,255,.035) 119px 120px);pointer-events:none}
.rp-hero__inner{position:relative;max-width:1040px;margin:0 auto}
.rp-eyebrow{font-family:var(--en);letter-spacing:.32em;font-size:13px;color:var(--gold);text-transform:uppercase;margin-bottom:22px;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.rp-eyebrow i{font-style:normal;border:1px solid rgba(201,163,107,.6);padding:1px 10px;letter-spacing:.2em}
.rp-hero h1{text-wrap:balance;font-weight:300;font-size:clamp(24px,3.8vw,40px);line-height:1.45;letter-spacing:.04em}
.rp-hero__sub{margin-top:14px;font-size:clamp(14px,1.8vw,18px);color:var(--rose-light);letter-spacing:.08em;font-weight:300}
.rp-meta{margin-top:40px;display:flex;flex-wrap:wrap;gap:12px 36px;font-size:13px;color:rgba(255,255,255,.75);letter-spacing:.08em}
.rp-meta b{display:block;font-family:var(--en);font-weight:400;font-size:11px;letter-spacing:.24em;color:var(--gold);margin-bottom:2px}
.rp-tags{margin-top:28px;display:flex;flex-wrap:wrap;gap:8px}.rp-tags span{font-size:12px;border:1px solid rgba(255,255,255,.25);padding:2px 12px;border-radius:20px;color:rgba(255,255,255,.8)}
.rp-btns{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}
.rp-btn{display:inline-flex;align-items:center;gap:10px;padding:12px 26px;font-size:13px;letter-spacing:.18em;border:1px solid var(--gold);color:var(--gold);transition:.25s}
.rp-btn:hover{background:var(--gold);color:var(--ink)}.rp-btn--fill{background:var(--gold);color:var(--ink)}.rp-btn--fill:hover{background:#fff;border-color:#fff}
/* article layout */
.rp-wrap{max-width:1120px;margin:0 auto;padding:64px 32px 40px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:56px}
.rp-toc{position:sticky;top:96px;align-self:start;font-size:13px;line-height:1.6;border-left:1px solid var(--rose-light);padding-left:18px}
.rp-toc h4{font-family:var(--en);font-weight:400;letter-spacing:.28em;font-size:12px;color:var(--rose);margin-bottom:12px}
.rp-toc a{display:block;padding:6px 0;color:var(--text-light);transition:.2s}.rp-toc a:hover,.rp-toc a.is-on{color:var(--dark);transform:translateX(3px)}.rp-toc a.is-on{font-weight:500}
.rp-article{min-width:0;max-width:760px}
.rp-sec{margin-bottom:56px}
.rp-sec h2{font-weight:400;font-size:clamp(20px,2.6vw,26px);line-height:1.5;color:var(--ink);letter-spacing:.04em;padding-bottom:14px;margin-bottom:24px;border-bottom:1px solid var(--rose-light);position:relative}
.rp-sec h2::after{content:"";position:absolute;left:0;bottom:-1px;width:64px;height:2px;background:var(--rose)}
.rp-sec__n{display:block;font-family:var(--en);font-size:13px;letter-spacing:.3em;color:var(--rose);margin-bottom:4px}
.rp-sec p{margin-bottom:1.3em;text-align:justify}.rp-sec b{color:var(--ink);font-weight:500;background:linear-gradient(transparent 62%,rgba(171,139,140,.2) 0)}
.rp-sec i{font-style:italic}
.rp-lead{color:var(--text-light)}
.rp-cite{font-family:var(--en);font-size:12px;color:var(--rose-dark);vertical-align:super;margin:0 1px;padding:0 1px}.rp-cite:hover{text-decoration:underline}
.rp-notice{border:1px solid rgba(171,139,140,.5);background:#fff;border-left:4px solid var(--rose);padding:18px 22px;margin-bottom:44px;font-size:14px;line-height:1.85}
.rp-notice strong{display:block;font-family:var(--en);letter-spacing:.3em;font-weight:400;color:var(--rose-dark);font-size:12px;margin-bottom:4px}
.rp-notice--foot{margin:0;background:var(--rose-bg)}
.rp-abstract{background:#fff;border:1px solid var(--rose-light);padding:34px 36px 14px;box-shadow:0 12px 40px rgba(46,30,30,.05)}
.rp-pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:8px 0 22px}
.rp-pillars div{text-align:center;background:var(--dark);color:#fff;padding:18px 8px;font-size:13px;letter-spacing:.06em;line-height:1.5}
.rp-pillars span{display:block;font-family:var(--en);font-size:22px;letter-spacing:.2em;color:var(--gold)}.rp-pillars small{display:block;font-size:11px;opacity:.65;margin-top:4px}
.rp-fig{margin:0 -24px 56px}.rp-fig img{width:100%;border:1px solid var(--rose-light);box-shadow:0 18px 50px rgba(46,30,30,.12);background:#fff}
.rp-fig figcaption{font-size:13px;line-height:1.8;color:var(--text-light);margin:14px 24px 0;font-family:var(--sans)}.rp-fig figcaption b{color:var(--dark);font-weight:500}
.rp-callout{background:var(--rose-bg);border-left:3px solid var(--gold);padding:22px 26px;margin:26px 0}.rp-callout h3{font-weight:500;font-size:16px;color:var(--ink);margin-bottom:8px;letter-spacing:.06em}.rp-callout p:last-child{margin-bottom:0}
.rp-callout--def{background:var(--dark);color:rgba(255,255,255,.92);border-left-color:var(--gold);padding:30px 34px}.rp-callout--def b{color:#fff;background:linear-gradient(transparent 62%,rgba(201,163,107,.45) 0)}
.rp-quote{margin:26px 0;padding:6px 0 6px 26px;border-left:2px solid var(--rose);font-size:18px;line-height:1.9;color:var(--ink);font-weight:300}
.rp-split{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:8px 0 26px}.rp-split>div{padding:18px 20px;border:1px solid var(--rose-light);background:#fff}.rp-split h4{font-size:14px;font-weight:500;color:var(--ink);margin-bottom:4px}.rp-split p{font-size:13px;margin:0;font-family:var(--en);letter-spacing:.04em}.rp-split__a{border-top:3px solid #4a7fb5!important}.rp-split__b{border-top:3px solid #d1805a!important}
.rp-flow{display:flex;gap:8px;align-items:stretch;margin:6px 0 28px;flex-wrap:wrap}
.rp-flow__step{flex:1 1 150px;background:#fff;border:1px solid var(--rose-light);padding:18px 16px;border-top:3px solid var(--rose)}
.rp-flow__step span{font-family:var(--en);letter-spacing:.24em;color:var(--rose-dark);font-size:14px}.rp-flow__step h4{font-size:14px;font-weight:500;margin:4px 0 6px;color:var(--ink);line-height:1.5}.rp-flow__step p{font-size:12.5px;line-height:1.7;margin:0;color:var(--text-light);text-align:left}
.rp-flow__step--end{background:var(--dark);border-top-color:var(--gold)}.rp-flow__step--end span{color:var(--gold)}.rp-flow__step--end h4{color:#fff}.rp-flow__step--end p{color:rgba(255,255,255,.7)}
.rp-flow__arrow{align-self:center;color:var(--rose);font-family:var(--en)}
.rp-table-wrap{overflow-x:auto;border:1px solid var(--rose-light);background:#fff}
.rp-table{width:100%;border-collapse:collapse;font-size:14px;min-width:620px;line-height:1.7}.rp-table th{background:var(--dark);color:#fff;font-weight:400;letter-spacing:.14em;font-size:12px;text-align:left;padding:12px 16px}.rp-table td{padding:14px 16px;border-top:1px solid var(--rose-light);vertical-align:top}.rp-table tr:nth-child(even) td{background:var(--rose-bg)}
.rp-badge{display:inline-block;font-family:var(--sans);font-size:11.5px;padding:2px 10px;border-radius:2px;letter-spacing:.04em;line-height:1.7;white-space:nowrap}
.rp-badge--a{background:#e4efe6;color:#2f6b3c}.rp-badge--b{background:#e3ecf6;color:#2f5b8a}.rp-badge--c{background:#f7ecd9;color:#8a6420}.rp-badge--d{background:#f3e0e0;color:#9a3a3a}
.rp-refs ol{padding-left:0;list-style:none;counter-reset:r}.rp-refs li{counter-increment:r;position:relative;padding:0 0 14px 38px;font-size:13.5px;line-height:1.75;font-family:var(--sans);color:var(--text)}.rp-refs li::before{content:counter(r);position:absolute;left:0;top:0;width:26px;height:26px;border-radius:50%;background:var(--rose-light);color:var(--rose-dark);font-family:var(--en);font-size:13px;display:grid;place-items:center;line-height:1}
.rp-refs a{color:var(--rose-dark);border-bottom:1px solid currentColor}.rp-refs li:target{background:rgba(201,163,107,.18)}
.rp-cite-box{max-width:1120px;margin:0 auto;padding:0 32px 72px}
.rp-cite-box__in{max-width:760px;margin-left:276px;border:1px solid var(--rose-light);background:#fff;padding:24px 28px;font-size:13.5px;font-family:var(--sans);line-height:1.8}
.rp-cite-box h4{font-family:var(--en);font-weight:400;letter-spacing:.3em;font-size:12px;color:var(--rose);margin-bottom:6px}
.rp-cite-box button{margin-top:10px;font-family:var(--sans);font-size:12px;border:1px solid var(--rose);background:none;color:var(--rose-dark);padding:5px 16px;cursor:pointer}
/* list page */
.rp-list{max-width:1120px;margin:0 auto;padding:72px 32px 100px}
.rp-feature{display:grid;grid-template-columns:1.1fr 1fr;background:var(--dark);color:#fff;margin-bottom:56px;box-shadow:0 24px 60px rgba(46,30,30,.2);transition:transform .3s}
.rp-feature:hover{transform:translateY(-4px)}
.rp-feature__img{background:#101820;overflow:hidden}.rp-feature__img img{width:100%;height:100%;object-fit:contain;transition:transform .8s}.rp-feature:hover img{transform:scale(1.04)}
.rp-feature__body{padding:44px 40px;display:flex;flex-direction:column;justify-content:center}
.rp-feature__body h2{font-weight:300;font-size:clamp(20px,2.4vw,28px);line-height:1.5;letter-spacing:.04em}.rp-feature__body h3{font-weight:300;font-size:14px;color:var(--rose-light);margin:8px 0 18px}.rp-feature__body p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.75)}
.rp-more{margin-top:24px;font-family:var(--en);letter-spacing:.2em;color:var(--gold);font-size:14px;border-bottom:1px solid var(--gold);align-self:flex-start;padding-bottom:2px}
.rp-grid-h{display:flex;align-items:baseline;gap:18px;margin-bottom:26px}.rp-grid-h h2{font-family:var(--en);font-weight:400;font-size:26px;letter-spacing:.18em;color:var(--ink)}.rp-grid-h span{font-size:13px;color:var(--text-light)}
.rp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rp-card{background:#fff;border:1px solid var(--rose-light);padding:26px 24px 22px;position:relative;display:flex;flex-direction:column;min-height:210px}
.rp-card__no{font-family:var(--en);font-size:44px;line-height:1;color:var(--rose-light);letter-spacing:.04em}
.rp-card__cat{font-family:var(--en);letter-spacing:.24em;font-size:12px;color:var(--rose);margin:14px 0 6px;text-transform:uppercase}
.rp-card h3{font-weight:400;font-size:15px;line-height:1.7;color:var(--ink)}
.rp-card__foot{margin-top:auto;padding-top:16px;font-size:12px;color:var(--text-light);letter-spacing:.1em;font-family:var(--en)}
.rp-card--soon{background:repeating-linear-gradient(135deg,#fff 0 12px,#fbf8f7 12px 24px)}.rp-card--soon h3{color:var(--text-light)}
.rp-soon{display:inline-block;font-family:var(--en);font-size:11px;letter-spacing:.26em;border:1px solid var(--rose);color:var(--rose-dark);padding:1px 10px}
.rp-card--soon .rp-soon{position:absolute;top:22px;right:20px}
.rp-about{margin-top:72px;padding:36px;border:1px solid var(--rose-light);background:#fff;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.rp-about h4{font-family:var(--en);font-weight:400;letter-spacing:.24em;color:var(--rose-dark);font-size:13px;margin-bottom:6px}.rp-about p{font-size:13.5px;line-height:1.85}
/* footer */
.rp-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:44px 32px;text-align:center;font-size:12px;letter-spacing:.1em}
.rp-footer a{color:var(--rose-light);margin:0 12px;font-family:var(--en);font-size:14px;letter-spacing:.16em}.rp-footer p{margin-top:18px;opacity:.6}
/* floating */
.rp-fab{position:fixed;right:22px;bottom:22px;z-index:60;display:flex;gap:10px;flex-direction:column;align-items:flex-end}
.rp-fab a,.rp-fab button{display:flex;align-items:center;gap:10px;background:var(--dark);color:#fff;border:1px solid rgba(201,163,107,.7);padding:11px 20px 11px 16px;border-radius:40px;font-size:12px;letter-spacing:.14em;font-family:var(--serif);box-shadow:0 10px 30px rgba(0,0,0,.25);cursor:pointer;transition:.25s}
.rp-fab a:hover{background:var(--gold);color:var(--ink)}
.rp-fab svg{flex:none}
.rp-top{opacity:0;pointer-events:none;width:44px;height:44px;padding:0!important;justify-content:center;border-radius:50%!important}.rp-top.on{opacity:1;pointer-events:auto}
@media(max-width:900px){.rp-wrap{grid-template-columns:1fr;gap:0;padding:44px 20px 20px}.rp-toc{display:none}.rp-fig{margin:0 -20px 44px}.rp-fig figcaption{margin:12px 20px 0}.rp-cite-box{padding:0 20px 56px}.rp-cite-box__in{margin-left:0}.rp-feature{grid-template-columns:1fr}.rp-feature__body{padding:30px 24px}.rp-grid{grid-template-columns:repeat(2,1fr)}.rp-about{grid-template-columns:1fr}.rp-header{padding:0 18px}.rp-header nav{gap:16px}.rp-hero{padding:120px 20px 60px}.rp-list{padding:48px 20px 80px}}
@media(max-width:560px){.rp-grid{grid-template-columns:1fr}.rp-header nav a:not(.rp-cta):not(.is-on){display:none}.rp-pillars{grid-template-columns:1fr}.rp-split{grid-template-columns:1fr}.rp-abstract{padding:24px 20px 6px}.rp-flow__arrow{display:none}.rp-flow__step{flex-basis:100%}.rp-fab a span{display:none}.rp-fab a{padding:13px}}
@media print{.rp-header,.rp-fab,.rp-progress,.rp-toc{display:none}.rp-hero{background:#fff;color:#000;padding:20px}.rp-wrap{display:block}}
.rp-grid-h{flex-wrap:wrap;row-gap:4px}.rp-grid-h h2{white-space:nowrap}
@media(max-width:560px){.rp-grid-h h2{font-size:22px}.rp-hero h1{font-size:26px}.rp-feature__body h2{font-size:20px}.rp-card{min-height:0}.rp-footer a{display:inline-block;margin:4px 8px}}