.seo-deep-dive{padding:clamp(52px,7vw,88px) 0;background:#f5f9fc;border-top:1px solid #dce7f2}
.seo-deep-dive .seo-wrap{width:min(1120px,calc(100% - 32px));margin-inline:auto}
.seo-deep-dive .seo-intro{max-width:820px;margin-bottom:28px}
.seo-deep-dive .seo-kicker{display:block;margin-bottom:8px;color:#267b1c;font-size:.82rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.seo-deep-dive h2{margin:0 0 14px;color:#0b2447;font-size:clamp(1.75rem,3.2vw,2.55rem);line-height:1.12}
.seo-deep-dive h3{margin:0 0 10px;color:#0b2447;font-size:1.18rem;line-height:1.3}
.seo-deep-dive p,.seo-deep-dive li{color:#40566f;line-height:1.72}
.seo-deep-dive a{color:#0f5aa8;font-weight:700;text-underline-offset:3px}
.seo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.seo-card{padding:clamp(22px,3vw,30px);background:#fff;border:1px solid #dce7f2;border-radius:22px;box-shadow:0 12px 30px rgba(11,36,71,.06)}
.seo-card ul,.seo-card ol{margin:12px 0 0;padding-left:1.25rem}
.seo-card li+li{margin-top:7px}
.seo-example{margin-top:18px;padding:18px 20px;background:#eaf4ff;border-left:4px solid #0f5aa8;border-radius:12px}
.seo-next{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.seo-next a{display:inline-flex;padding:10px 14px;background:#eefbea;border:1px solid #ccebc3;border-radius:999px;text-decoration:none}
@media (max-width:720px){.seo-grid{grid-template-columns:1fr}.seo-deep-dive{padding:46px 0}.seo-card{border-radius:18px}.seo-next{align-items:stretch}.seo-next a{width:100%;justify-content:center;text-align:center}}
.cluster-authority{padding:clamp(58px,8vw,96px) 0;background:#fff;border-top:1px solid #dce7f2}
.cluster-authority .authority-wrap{width:min(1120px,calc(100% - 32px));margin-inline:auto}
.authority-head{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:28px;align-items:start;margin-bottom:34px}
.authority-head h2{margin:8px 0 14px;color:#0b2447;font-size:clamp(1.9rem,3.5vw,2.8rem);line-height:1.1}
.authority-head p,.authority-block p,.authority-block li,.authority-table td{color:#40566f;line-height:1.72}
.authority-label{color:#267b1c;font-size:.8rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase}
.authority-review{padding:22px;background:#f5f9fc;border:1px solid #dce7f2;border-radius:18px}
.authority-review strong,.authority-review span{display:block}.authority-review strong{color:#0b2447;margin-bottom:7px}.authority-review span{color:#61748c;font-size:.92rem;line-height:1.55}
.authority-review a{color:#0f5aa8;font-weight:700}
.authority-nav{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 32px;padding:0;list-style:none}
.authority-nav a{display:block;padding:9px 13px;color:#0b3b78;background:#eaf4ff;border:1px solid #cfe3f8;border-radius:999px;font-weight:750;text-decoration:none}
.authority-block{margin-top:24px;padding:clamp(24px,4vw,38px);background:#f8fbfe;border:1px solid #dce7f2;border-radius:24px}
.authority-block h3{margin:0 0 12px;color:#0b2447;font-size:clamp(1.35rem,2.4vw,1.75rem)}
.authority-block h4{margin:18px 0 8px;color:#0b2447;font-size:1.08rem}
.authority-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.authority-columns>div{padding:22px;background:#fff;border:1px solid #e2ebf4;border-radius:18px}
.authority-table-wrap{overflow-x:auto;margin-top:18px;border:1px solid #dce7f2;border-radius:16px;background:#fff}
.authority-table{width:100%;min-width:720px;border-collapse:collapse}
.authority-table th,.authority-table td{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid #e7eef5}
.authority-table th{color:#0b2447;background:#eaf4ff;font-size:.9rem}.authority-table tr:last-child td{border-bottom:0}
.authority-block a{color:#0f5aa8;font-weight:700;text-underline-offset:3px}
.authority-steps{counter-reset:authority-step;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px}
.authority-step{position:relative;padding:50px 20px 20px;background:#fff;border:1px solid #dce7f2;border-radius:18px}
.authority-step:before{counter-increment:authority-step;content:counter(authority-step);position:absolute;top:16px;left:20px;width:26px;height:26px;display:grid;place-items:center;color:#fff;background:#0f5aa8;border-radius:50%;font-weight:800}
.authority-step strong{display:block;margin-bottom:7px;color:#0b2447}
.authority-note{margin-top:18px;padding:18px 20px;background:#fff8e7;border-left:4px solid #e3a51a;border-radius:12px;color:#5f4a1c;line-height:1.65}
.authority-glossary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0 0}
.authority-glossary div{padding:16px 18px;background:#fff;border:1px solid #e2ebf4;border-radius:14px}
.authority-glossary dt{color:#0b2447;font-weight:800}.authority-glossary dd{margin:5px 0 0;color:#40566f;line-height:1.58}
.cluster-jump{padding:14px 16px;text-align:center;background:#eaf4ff;border-block:1px solid #cfe3f8}.cluster-jump a{color:#0b3b78;font-weight:800;text-underline-offset:3px}
@media (max-width:820px){.authority-head,.authority-columns{grid-template-columns:1fr}.authority-steps{grid-template-columns:1fr}.authority-review{max-width:none}}
@media (max-width:560px){.cluster-authority{padding:48px 0}.authority-block{padding:21px 18px;border-radius:18px}.authority-glossary{grid-template-columns:1fr}.authority-nav a{width:100%;text-align:center}.authority-table th,.authority-table td{padding:12px}}
@media (max-width:760px){body .site-header .nav{display:none}body .site-header .header-inner{min-height:68px;flex-wrap:nowrap!important}body .site-header .brand-logo-img{max-width:min(190px,52vw);height:auto}}