.t7-page{background:#fff;color:#132d40}.t7-page h1{font-size:clamp(2.8rem,5vw,4.6rem);line-height:1.05;letter-spacing:-.045em;max-width:800px}.t7-hero{padding:80px 0 60px;background:linear-gradient(120deg,#f2f8fa,#e7f0f4)}.t7-hero-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:64px;align-items:center}.t7-lead{font-size:1.2rem;line-height:1.8;max-width:640px;margin:24px 0}.t7-disclosure{font-size:.85rem;line-height:1.65;color:#526878;max-width:620px;margin-top:25px}.t7-domain{background:#12354a;color:white;padding:38px;border-radius:22px;box-shadow:0 20px 45px #12354a20}.t7-domain h2{font-size:2.1rem;line-height:1.2;color:white;margin:20px 0}.t7-domain p{color:#d7e5eb;line-height:1.7;margin-bottom:25px}.t7-kicker{font-size:.75rem;letter-spacing:.14em;color:#92d5e9;font-weight:750}.t7-extensions{display:flex;gap:10px;margin:28px 0}.t7-extensions span{padding:7px 12px;border:1px solid #ffffff35;border-radius:8px;font-size:1.1rem}.t7-domain small{color:#c9dae2;line-height:1.5;display:block}.t7-categories{display:flex;flex-wrap:wrap;gap:10px;padding-top:26px;padding-bottom:26px;border-bottom:1px solid #dfe8ed}.t7-categories a{padding:10px 17px;border-radius:30px;background:#eef4f7;font-size:.9rem;font-weight:650}.t7-categories a:hover{background:#dceef5}.t7-group{padding-top:62px;scroll-margin-top:120px}.t7-group h2,.t7-bottom h2{font-size:2rem;letter-spacing:-.025em}.t7-group-lead{color:#526878;margin:10px 0 25px}.t7-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.t7-card{border:1px solid #dce6ec;border-radius:14px;padding:26px;display:flex;flex-direction:column;background:#fff;transition:box-shadow .2s,border-color .2s}.t7-card:hover{border-color:#66a7c4;box-shadow:0 10px 26px #183f5010}.t7-card h3{font-size:1.15rem;margin:0 0 12px}.t7-card p{line-height:1.7;color:#526878;margin:0 0 24px;flex:1}.t7-card a{font-size:.9rem;font-weight:750;color:#07678d;display:flex;justify-content:space-between}.t7-bottom{margin-top:70px;padding:60px 0;background:#f0f6f8}.t7-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin:30px 0}.t7-steps b{font-size:1rem}.t7-steps p{color:#526878;line-height:1.7;margin-top:10px}.t7-bottom details{border-bottom:1px solid #d2e1e8;padding:19px 0}.t7-bottom summary{cursor:pointer;font-weight:700}.t7-bottom details p{line-height:1.7;margin-top:14px;max-width:850px}.t7-advice{margin-top:30px}.t7-advice a{font-weight:700;text-decoration:underline}.t7-promo{margin:42px auto;padding:32px;border:1px solid #cddfe8;border-radius:18px;background:linear-gradient(110deg,#edf6fa,#fff);display:flex;align-items:center;justify-content:space-between;gap:28px}.t7-promo h2{font-size:1.7rem;line-height:1.25;margin:6px 0 10px}.t7-promo p{max-width:680px;line-height:1.7;color:#526878}.t7-promo .eyebrow{font-size:.72rem;color:#08688c}.t7-promo .button{flex-shrink:0}.t7-page a:focus-visible,.t7-promo a:focus-visible{outline:3px solid #d8702b;outline-offset:4px}
@media(max-width:900px){.t7-hero-grid{grid-template-columns:1fr;gap:34px}.t7-hero{padding:45px 0}.t7-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.t7-promo{flex-direction:column;align-items:flex-start}.t7-steps{gap:18px}}@media(max-width:560px){.t7-cards,.t7-steps{grid-template-columns:1fr}.t7-domain{padding:27px}.t7-group{padding-top:42px}.t7-categories{gap:8px}.t7-categories a{font-size:.8rem;padding:8px 12px}.t7-promo{padding:24px}.t7-page h1{font-size:2.7rem}}
.t7-page .button-ghost{color:#173b50;border-color:#8ba9ba;background:transparent}.t7-page .button-ghost:hover{background:#dcebf2;color:#12354a}

/* Visual expansion, November 2026 */
.t7-domain{padding:0;overflow:hidden}.t7-domain-photo{display:block;width:100%;height:220px;object-fit:cover;object-position:80% 45%}.t7-domain-inner{padding:28px 32px}.t7-domain-inner h2{margin:12px 0;font-size:1.8rem}.t7-domain-inner .t7-extensions{margin:22px 0}.t7-group-heading{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-bottom:24px}.t7-group-heading .t7-group-lead{margin-bottom:0}.t7-group-heading img{width:240px;height:135px;object-fit:cover;border-radius:14px;flex-shrink:0}.t7-promo{display:grid;grid-template-columns:300px 1fr;gap:36px;padding:0;overflow:hidden;background:#eef5f8}.t7-promo-photo{width:100%;height:100%;min-height:290px;object-fit:cover;object-position:44% center;align-self:stretch}.t7-promo-copy{padding:30px 32px 30px 0}.t7-promo-copy p{margin-bottom:18px}.t7-promo-copy .button{display:inline-flex}.qccs-home .hero .button-ghost[href="/theory7/"]{border-color:#537e94;color:#173b50;background:#fff}.qccs-home .hero .button-ghost[href="/theory7/"]:hover{background:#e3f0f6}
@media(max-width:900px){.t7-domain{max-width:640px;width:100%}.t7-domain-photo{height:250px}.t7-promo{grid-template-columns:230px 1fr;gap:24px}.t7-promo-copy{padding:24px 24px 24px 0}.t7-group-heading img{width:200px;height:125px}}@media(max-width:600px){.t7-promo{grid-template-columns:1fr;gap:0}.t7-promo-photo{height:200px;min-height:0}.t7-promo-copy{padding:25px}.t7-group-heading{display:block}.t7-group-heading img{width:100%;height:175px;margin-top:20px}.t7-domain-photo{height:200px}.t7-domain-inner{padding:25px}.t7-page h1{font-size:2.6rem}}