:root{--ink:#171716;--paper:#f7f4ed;--red:#a11d18;--gold:#8d682c;--blue:#073b58;--line:#ddd7ca;--muted:#777268;--serif:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP",Georgia,serif;--sans:"Yu Gothic","Hiragino Kaku Gothic ProN","Noto Sans JP",Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:var(--sans);line-height:1.75}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.site-header{height:70px;display:flex;align-items:center;padding:0 4vw;position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);z-index:50;border-bottom:1px solid rgba(0,0,0,.06)}.wordmark{font-family:Georgia,serif;letter-spacing:.22em;font-size:20px}.site-nav{margin-left:auto;display:flex;align-items:center;gap:30px;font-size:14px}.nav-cta{padding:10px 18px;border:1px solid #222}.menu-toggle{display:none;margin-left:auto;border:0;background:none;font-size:24px}.hero{position:relative;min-height:720px;overflow:hidden;background:#eee}.hero-bg{position:absolute;inset:0;background:url('assets/hero-technique.webp') center/cover no-repeat}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.82) 38%,rgba(255,255,255,.08) 66%,rgba(0,0,0,.24) 100%)}.hero-inner{position:relative;z-index:2;width:min(1200px,92vw);margin:auto;padding:82px 0}.hero-logo{width:min(600px,58vw);max-height:240px;object-fit:contain;object-position:left center;margin-bottom:12px}.eyebrow{font:12px/1.3 Georgia,serif;letter-spacing:.18em;color:#6c665c}.hero h1,.section h2,.side-card h3{font-family:var(--serif);font-weight:500}.hero h1{font-size:clamp(34px,4vw,62px);line-height:1.35;margin:.2em 0}.lead{max-width:650px;font-size:18px}.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 28px;border:1px solid #222;transition:.2s}.btn:hover{transform:translateY(-1px);opacity:.9}.btn-dark{background:#191919;color:#fff}.btn-light{background:rgba(255,255,255,.85)}.hero-note{margin-top:32px;font-family:var(--serif);font-size:19px}.section{padding:84px max(4vw,24px)}.section-head{max-width:1180px;margin:0 auto 34px}.section-head h2{font-size:clamp(30px,3vw,46px);line-height:1.4;margin:.2em 0}.centered{text-align:center}.about{background:var(--paper)}.about-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:1fr 1.2fr;gap:70px;align-items:center}.flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:12px;text-align:center}.flow>div{background:#fff;border:1px solid var(--line);border-radius:50%;aspect-ratio:1;display:flex;flex-direction:column;justify-content:center;padding:15px}.flow span{font-size:12px;color:var(--muted)}.flow-core{background:#161616!important;color:#fff}.side-grid{max-width:1240px;margin:auto;display:grid;grid-template-columns:1fr 1fr;gap:20px}.side-card{display:grid;grid-template-columns:42% 58%;min-height:520px;border:1px solid var(--line);overflow:hidden}.side-card>img{width:100%;height:100%;object-fit:cover}.seller{background:#f1eadb}.buyer{background:#edf4f7}.side-body{padding:36px}.side-label{font:12px Georgia,serif;letter-spacing:.16em}.side-card h3{font-size:36px;line-height:1.25;margin:.2em 0}.side-intro{font-size:14px}.triggers{list-style:none;padding:0;margin:24px 0}.triggers li{display:grid;grid-template-columns:44px 1fr;gap:12px;padding:16px 0;border-top:1px solid rgba(0,0,0,.15);font-family:var(--serif)}.triggers span{font-family:Georgia,serif;font-size:22px;color:#6b5a3b}.seller-btn{background:var(--gold);color:#fff;border:0;width:100%}.buyer-btn{background:var(--blue);color:#fff;border:0;width:100%}.notice{max-width:1240px;margin:18px auto 0;font-size:13px;color:#555;background:#f7f7f5;padding:14px 18px}.row-head{display:flex;align-items:end;justify-content:space-between;gap:30px}.muted{color:var(--muted)}.case-grid{max-width:1240px;margin:auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px}.case-card{border:1px solid var(--line);background:#fff;min-height:330px}.case-card.featured{display:grid;grid-template-columns:1.05fr 1fr}.case-card.featured img{width:100%;height:100%;object-fit:cover}.case-body{padding:28px}.case-body h3{font-family:var(--serif);font-size:30px}.chips{display:flex;gap:8px;flex-wrap:wrap}.chips span{font-size:11px;border:1px solid #bbb;padding:3px 8px}.case-body a{display:inline-block;margin-top:14px;border-bottom:1px solid #222}.ai-note{font-size:11px;color:#8a8072}.pending{background:linear-gradient(135deg,#f5f2ec,#e9e4da);display:flex;align-items:end}.pending-inner{padding:28px}.pending-inner span{font:11px Georgia,serif;letter-spacing:.16em;color:#857b6c}.pending-inner h3{font-family:var(--serif);font-size:28px}.dark{background:#181817;color:#f7f5ef}.philosophy-inner{max-width:900px;margin:auto}.philosophy-inner h2{font-size:54px}.dark .eyebrow,.dark .beta-note{color:#bcb6aa}.trace-row{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin:30px 0;font-family:Georgia,serif;letter-spacing:.12em}.contact{text-align:center;background:#f4f0e8}.contact>p{max-width:760px;margin-left:auto;margin-right:auto}.site-footer{display:flex;gap:28px;justify-content:center;flex-wrap:wrap;padding:28px;background:#111;color:#ddd;font-size:12px}
@media(max-width:900px){.site-header{height:62px}.site-nav{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;padding:20px;flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.menu-toggle{display:block}.hero{min-height:700px}.hero-bg{background-position:62% center}.hero-shade{background:linear-gradient(180deg,rgba(255,255,255,.93) 0%,rgba(255,255,255,.82) 55%,rgba(0,0,0,.18) 100%)}.hero-inner{padding:52px 6vw}.hero-logo{width:86vw;max-width:560px}.hero h1{font-size:40px}.lead{font-size:16px}.about-grid,.side-grid,.case-grid{grid-template-columns:1fr}.flow{grid-template-columns:1fr;max-width:300px;margin:auto}.flow b{transform:rotate(90deg)}.flow>div{aspect-ratio:auto;border-radius:18px;padding:18px}.side-card{grid-template-columns:1fr;min-height:auto}.side-card>img{height:270px}.case-card.featured{grid-template-columns:1fr}.case-card.featured img{height:280px}.row-head{display:block}.philosophy-inner h2{font-size:42px}}
@media(max-width:560px){.section{padding:60px 20px}.hero{min-height:760px}.hero-inner{padding-top:42px}.hero-logo{width:92vw;transform:translateX(-4vw)}.hero-actions{display:grid}.btn{width:100%}.side-body{padding:24px}.side-card h3{font-size:31px}.section-head h2{font-size:34px}.philosophy-inner h2{font-size:38px}}