/* v517A — Useful Guide pillar SEO expansion batch 1. */
.guide-seo-expansion-v517A{margin:34px 0 0;display:grid;gap:24px}.guide-seo-expansion-v517A h2{font-size:clamp(26px,2.4vw,34px);line-height:1.15;margin:0 0 12px;color:#0f172a}.guide-seo-expansion-v517A h3{font-size:20px;line-height:1.2;margin:0 0 10px;color:#0f172a}.guide-seo-expansion-v517A p{color:#475569;line-height:1.72;margin:0 0 14px}.guide-seo-card-v517A{border:1px solid #dbe7f5;background:#fff;border-radius:24px;padding:24px;box-shadow:0 16px 40px rgba(15,23,42,.06)}.guide-seo-soft-v517A{background:linear-gradient(135deg,#f8fbff,#fff);border-color:#d8e7f7}.guide-seo-grid-v517A{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.guide-seo-grid-three-v517A{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.guide-mini-card-v517A{border:1px solid #e2e8f0;background:#f8fafc;border-radius:18px;padding:18px}.guide-mini-card-v517A strong{display:block;font-size:16px;margin-bottom:8px;color:#0f172a}.guide-mini-card-v517A p{font-size:14px;line-height:1.58;margin:0}.guide-seo-table-wrap-v517A{overflow:auto;border:1px solid #dbe7f5;border-radius:20px;background:#fff;box-shadow:0 12px 30px rgba(15,23,42,.04)}.guide-seo-table-v517A{width:100%;border-collapse:collapse;min-width:780px}.guide-seo-table-v517A th,.guide-seo-table-v517A td{text-align:left;vertical-align:top;padding:15px 16px;border-bottom:1px solid #e8eef6;line-height:1.55}.guide-seo-table-v517A th{background:#eef6ff;color:#123052;font-weight:900}.guide-seo-table-v517A tr:last-child td{border-bottom:0}.guide-seo-table-v517A td:first-child strong{color:#b91c1c}.guide-checklist-v517A{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:12px 0 0}.guide-check-v517A{display:flex;gap:10px;align-items:flex-start;background:#f8fafc;border:1px solid #e2e8f0;border-radius:16px;padding:13px;color:#334155;font-weight:700;line-height:1.45}.guide-check-v517A span{display:inline-flex;width:22px;height:22px;align-items:center;justify-content:center;border-radius:999px;background:#dc2626;color:#fff;font-size:12px;flex:0 0 22px;margin-top:1px}.guide-case-grid-v517A{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.guide-case-v517A{border:1px solid #dbe7f5;border-radius:20px;background:#fff;padding:18px}.guide-case-v517A .tag{display:inline-flex;border-radius:999px;background:#fee2e2;color:#991b1b;font-weight:900;font-size:12px;padding:5px 9px;margin-bottom:10px}.guide-case-v517A strong{display:block;color:#0f172a;margin-bottom:8px}.guide-case-v517A p{font-size:14px;line-height:1.6;margin:0}.guide-warning-v517A{border-left:5px solid #dc2626;background:#fff7ed;border-radius:18px;padding:18px;color:#7c2d12}.guide-warning-v517A strong{display:block;color:#9a3412;margin-bottom:6px}.guide-faq-list-v517A{display:grid;gap:12px}.guide-faq-item-v517A{border:1px solid #e2e8f0;border-radius:18px;background:#fff;padding:18px}.guide-faq-item-v517A strong{display:block;color:#0f172a;margin-bottom:8px}.guide-faq-item-v517A p{font-size:14px;line-height:1.62;margin:0}@media(max-width:900px){.guide-seo-grid-v517A,.guide-seo-grid-three-v517A,.guide-checklist-v517A,.guide-case-grid-v517A{grid-template-columns:1fr}.guide-seo-card-v517A{padding:20px}.guide-seo-table-v517A{min-width:720px}}@media(max-width:560px){.guide-seo-expansion-v517A{gap:18px}.guide-seo-card-v517A{border-radius:20px;padding:18px}.guide-seo-expansion-v517A h2{font-size:25px}.guide-seo-table-v517A{min-width:660px}.guide-check-v517A{font-size:14px}}