.sponsorship-invite{padding:52px var(--pad);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;border-bottom:1px solid var(--line);background:var(--paper);color:#151515}
.sponsorship-invite .eyebrow{margin-bottom:16px}.sponsorship-invite h2{font-size:clamp(25px,3vw,43px);letter-spacing:-.04em;line-height:1.5;margin:0 0 15px}.sponsorship-invite p:not(.eyebrow){font-size:15px;line-height:1.9;max-width:630px;margin:0}
.proposal-actions{display:flex;flex-wrap:wrap;gap:12px}.sponsorship-invite .proposal-actions{flex-direction:column;align-items:stretch}
.proposal-button{display:inline-flex;align-items:center;justify-content:space-between;gap:22px;padding:16px 22px;min-height:52px;border:1px solid var(--ink);background:var(--ink);color:#111;font-size:14px;font-weight:700;line-height:1.7;max-width:100%;overflow-wrap:anywhere}.proposal-button:hover{background:#d9d8d2}.proposal-button.secondary{background:transparent;color:var(--ink)}
.sponsorship-invite .proposal-button{background:#111;color:var(--paper);border-color:#111}.sponsorship-invite .proposal-button:hover{background:#333}
.proposal-heading{max-width:1240px;margin:0 auto}.proposal-heading h1{font-family:Arial,'Noto Sans JP','Hiragino Kaku Gothic ProN',sans-serif;font-size:clamp(39px,6.2vw,85px);line-height:1.25;letter-spacing:-.04em;overflow-wrap:anywhere}.proposal-heading .lede{margin-bottom:22px}.proposal-intro{font-size:16px;line-height:2;max-width:760px;margin:0 0 28px}.proposal-meta{font-size:12px;line-height:1.9;color:var(--muted);margin-top:18px}.proposal-breadcrumb{display:flex;gap:18px;align-items:center;font-size:11px;letter-spacing:.1em;margin-bottom:42px}.proposal-breadcrumb a{display:inline-flex;align-items:center;min-height:44px;text-decoration:underline;text-underline-offset:4px}
.proposal-summary{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:30px;padding:0}.proposal-summary summary{cursor:pointer;padding:18px 0;font-size:15px;font-weight:700;line-height:1.8}.proposal-summary ul{font-size:15px;line-height:1.9;padding:0 0 8px 24px;max-width:870px}.proposal-summary li{padding-bottom:12px}
.proposal-document{padding:45px var(--pad) 70px;background:#1c1c1c}.proposal-document-head,.proposal-page{max-width:1200px;margin-left:auto;margin-right:auto}.proposal-document-head{margin-bottom:32px}.proposal-document-head h2{font-size:24px;margin:0 0 12px}.proposal-document-head p{font-size:14px;line-height:1.9;color:var(--muted)}.proposal-page{margin-top:0;margin-bottom:40px}.proposal-page figcaption{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:12px;line-height:1.8;margin-bottom:12px}.proposal-page a{display:block;background:var(--paper)}.proposal-page img{width:100%;height:auto}.proposal-closing{padding:80px var(--pad);max-width:1240px;margin:0 auto}.proposal-closing h2{font-size:clamp(25px,4vw,47px);line-height:1.6;letter-spacing:-.03em;margin:0 0 18px}.proposal-closing>p:not(.eyebrow){font-size:16px;line-height:2;margin:0 0 26px}
@media(max-width:900px){.sponsorship-invite{grid-template-columns:1fr;gap:25px}.sponsorship-invite .proposal-actions{flex-direction:row}}
@media(max-width:700px){.sponsorship-invite{padding-top:36px;padding-bottom:36px}.proposal-actions{flex-direction:column;align-items:stretch}.sponsorship-invite .proposal-actions{flex-direction:column}.proposal-button{width:100%;font-size:15px;padding:15px 18px}.proposal-heading h1{font-size:clamp(34px,9.6vw,62px)}.proposal-heading .proposal-intro,.proposal-summary ul{font-size:15px}.proposal-breadcrumb{margin-bottom:26px}.proposal-document{padding:32px 12px 35px}.proposal-document-head{padding:0 8px}.proposal-page{margin-bottom:28px}.proposal-page figcaption{padding:0 8px;font-size:11px}.proposal-closing{padding-top:48px;padding-bottom:48px}}