.cooperation-page .detail-hero { min-height: 0; padding-bottom: 64px; }
.cooperation-page .detail-lead { max-width: 830px; }
.cooperation-method { max-width: 830px; margin-top: 18px; color: var(--muted); font-size: 17px; line-height: 2; }
.cooperation-proof { display: flex; flex-wrap: wrap; gap: 12px 28px; margin-top: 28px; font-size: 14px; color: var(--gold); }
.cooperation-proof a { text-decoration: underline; text-underline-offset: 5px; }
.cooperation-heading { margin-bottom: 36px; }
.cooperation-heading h2 { margin-top: 12px; text-wrap: balance; }
.cooperation-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.engagement-card { min-width: 0; display: flex; flex-direction: column; padding: 34px; border: 1px solid var(--border); border-radius: 16px; background: linear-gradient(145deg, transparent, transparent); box-shadow: 0 12px 28px transparent; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.engagement-number { color: var(--gold); font-size: 12px; letter-spacing: .08em; }
.cooperation-page .engagement-card h3 { font-size: 29px; margin: 16px 0 8px; }
.cooperation-page .engagement-card p { margin: 0; }
.cooperation-page .engagement-card .engagement-promise { color: var(--foreground); font-size: 19px; margin-bottom: 18px; }
.cooperation-page .engagement-card .engagement-delivery { font-size: 15px; margin-top: 16px; }
.engagement-bottom { margin-top: auto; padding-top: 28px; }
.cooperation-page .engagement-card .engagement-price { color: var(--foreground); font-size: clamp(22px, 2.1vw, 28px); font-weight: 600; line-height: 1.65; border-top: 1px solid var(--line); padding-top: 22px; }
.engagement-price span { display: inline-block; font-size: 15px; font-weight: 400; color: var(--muted); }
.engagement-bottom a { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 18px; font-size: 15px; padding-block: 8px; }
.engagement-card:focus-within { border-color: var(--gold); box-shadow: 0 16px 36px transparent; }
.cooperation-page .page-end h2 { font-size: clamp(28px, 3.2vw, 43px); text-wrap: balance; }
.cooperation-page .page-end p { margin-top: 16px; }
@media (hover: hover) and (prefers-reduced-motion: no-preference) { .engagement-card:hover { transform: translateY(-5px); border-color: var(--border); box-shadow: 0 20px 40px transparent; } }
@media (max-width: 760px) { .cooperation-grid { grid-template-columns: 1fr; gap: 20px; } .engagement-card { padding: 26px; } .cooperation-page .page-section { padding-block: 56px; } .cooperation-proof { gap: 8px 24px; } }
@media (prefers-reduced-motion: reduce) { .engagement-card { transition: none; } }