/* SEO content pages: extend dsdaifa.com's original blue/orange visual language. */
.seo-main{padding:38px 0 76px;background:var(--background);min-height:70vh}
.seo-breadcrumb{font-size:13px;color:var(--muted);margin:0 0 20px;display:flex;gap:7px;flex-wrap:wrap}
.seo-breadcrumb a{color:var(--blue);text-decoration:none}.seo-breadcrumb a:hover{text-decoration:underline}
.seo-hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#eff6ff 0%,#fff 62%,#fff7ed 100%);border:1px solid var(--line);border-radius:20px;padding:42px 44px;margin-bottom:26px;box-shadow:0 10px 30px rgba(15,23,42,.05)}
.seo-hero:after{content:"";position:absolute;right:-70px;top:-85px;width:240px;height:240px;border-radius:50%;background:rgba(249,115,22,.09)}
.seo-kicker{position:relative;z-index:1;display:inline-flex;align-items:center;padding:6px 11px;border-radius:999px;background:var(--soft-orange);color:var(--orange-dark);font-size:13px;font-weight:800;margin-bottom:13px}
.seo-hero h1{position:relative;z-index:1;font-size:clamp(30px,4.4vw,44px);line-height:1.3;color:#0f172a;margin:0 0 13px;letter-spacing:-.02em}
.seo-lead{position:relative;z-index:1;max-width:900px;color:var(--muted);font-size:17px;line-height:1.9;margin:0 0 10px}
.seo-update{position:relative;z-index:1;color:#64748b;font-size:13px;margin:0}
.seo-layout{display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:24px;align-items:start}
.seo-article,.seo-side-card,.seo-entry-card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 24px rgba(15,23,42,.05)}
.seo-article{padding:34px 38px}.seo-article h2{font-size:25px;line-height:1.45;color:#0f172a;margin:34px 0 14px;padding-left:13px;border-left:4px solid var(--blue)}.seo-article h2:first-child{margin-top:0}.seo-article h3{font-size:19px;color:#1e293b;margin:24px 0 9px}.seo-article p{color:#475569;font-size:16px;line-height:1.95;margin:0 0 15px}.seo-article ul,.seo-article ol{margin:8px 0 18px 22px;color:#475569;line-height:1.9}.seo-article li{margin:6px 0}
.seo-note{margin:22px 0;padding:16px 18px;border-radius:13px;border:1px solid #fed7aa;background:var(--soft-orange);color:#7c2d12;line-height:1.8}
.seo-table-wrap{overflow:auto;margin:18px 0 24px}.seo-table{width:100%;min-width:650px;border-collapse:collapse;font-size:14px}.seo-table th,.seo-table td{border:1px solid var(--line);padding:12px 13px;text-align:left;vertical-align:top;line-height:1.65}.seo-table th{background:var(--soft-blue);color:#1e3a8a}
.seo-sidebar{position:sticky;top:90px;display:grid;gap:16px}.seo-side-card{padding:20px}.seo-side-card h2{font-size:18px;margin:0 0 12px;color:#0f172a}.seo-side-card a{display:block;padding:9px 0;border-bottom:1px solid #eef2f7;color:#475569;text-decoration:none;font-size:14px;line-height:1.55}.seo-side-card a:last-child{border-bottom:0}.seo-side-card a:hover{color:var(--blue)}
.seo-cta{margin-top:26px;padding:24px;border-radius:16px;background:linear-gradient(120deg,#1d4ed8,#2563eb 68%,#f97316);color:#fff}.seo-cta h2{margin:0 0 8px;padding:0;border:0;color:#fff;font-size:21px}.seo-cta p{color:#dbeafe;margin:0 0 15px}.seo-cta a{display:inline-flex;min-height:44px;align-items:center;padding:10px 18px;border-radius:10px;background:#fff;color:#1d4ed8;text-decoration:none;font-weight:800}
.seo-entry-section{padding:68px 0;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.seo-entry-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.seo-entry-card{display:block;padding:22px;text-decoration:none;border-top:4px solid var(--blue);transition:.2s ease}.seo-entry-card:nth-child(even){border-top-color:var(--orange)}.seo-entry-card:hover{transform:translateY(-4px);box-shadow:0 13px 28px rgba(15,23,42,.09)}.seo-entry-card h3{font-size:18px;color:#0f172a;margin:0 0 8px}.seo-entry-card p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}
.seo-topic-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.seo-topic-links a{display:inline-flex;padding:7px 12px;border-radius:999px;background:var(--soft-blue);color:var(--blue);font-size:13px;text-decoration:none;font-weight:700}.seo-topic-links a:hover{background:var(--blue);color:#fff}
.seo-footer-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px}.seo-footer-links a{color:#cbd5e1;text-decoration:none;font-size:13px}.seo-footer-links a:hover{color:#fff}
.faq-list{display:grid;gap:14px}.faq-item{border:1px solid var(--line);border-radius:14px;padding:18px;background:#f8fafc}.faq-item h2,.faq-item h3{border:0;padding:0;margin:0 0 8px;font-size:18px}.faq-item p{margin:0}
@media(max-width:980px){.seo-layout{grid-template-columns:1fr}.seo-sidebar{position:static;grid-template-columns:repeat(2,1fr)}.seo-entry-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.seo-main{padding:24px 0 54px}.seo-hero{padding:28px 21px;border-radius:16px}.seo-hero h1{font-size:29px}.seo-lead{font-size:15px}.seo-article{padding:24px 19px}.seo-article h2{font-size:22px}.seo-sidebar{grid-template-columns:1fr}.seo-entry-grid{grid-template-columns:1fr}.seo-table{min-width:560px}}