/* ===== 礼品行 SEO 内容页：延续原站科技蓝/深蓝视觉 ===== */
.seo-hero {padding:58px 0 54px;color:#fff;background:radial-gradient(circle at 82% 18%,rgba(34,184,207,.20),transparent 26%),linear-gradient(135deg,var(--navy),var(--deep-blue) 58%,var(--tech-blue));}
.seo-hero .w1200{position:relative}.seo-breadcrumb{margin-bottom:18px;font-size:14px;color:#cfe0f5}.seo-breadcrumb a{color:#e8f2ff}
.seo-hero h1{max-width:900px;font-size:38px;line-height:1.35}.seo-hero p{max-width:860px;margin-top:16px;color:#d8e7f7;font-size:17px;line-height:1.9}
.seo-main{padding:58px 0 74px;background:var(--page-bg)}.seo-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px;align-items:start}
.seo-article,.seo-side-card,.seo-index-card{background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 6px 20px rgba(15,47,95,.05)}
.seo-article{padding:34px 38px}.seo-article h2{margin:30px 0 13px;color:var(--navy);font-size:24px;line-height:1.5}.seo-article h3{margin:22px 0 10px;color:var(--deep-blue);font-size:19px;line-height:1.5}
.seo-article p,.seo-article li{color:#475467;font-size:16px;line-height:1.95}.seo-article ul,.seo-article ol{margin:12px 0 16px 22px}.seo-article ul li{list-style:disc}.seo-article ol li{list-style:decimal}
.seo-note{margin:22px 0;padding:18px 20px;color:#344054;line-height:1.85;background:#eef6ff;border-left:4px solid var(--tech-blue);border-radius:8px}
.seo-meta{display:flex;flex-wrap:wrap;gap:16px;margin:12px 0 0;color:#98a2b3;font-size:13px}.seo-side{display:grid;gap:18px}.seo-side-card{padding:22px}
.seo-side-card h2{margin-bottom:12px;color:var(--navy);font-size:18px}.seo-side-card a{display:block;padding:9px 0;color:#475467;border-bottom:1px dashed #e6edf5}.seo-side-card a:last-child{border-bottom:0}.seo-side-card a:hover{color:var(--tech-blue)}
.seo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.seo-index-card{padding:24px}.seo-index-card h2{margin-bottom:10px;color:var(--navy);font-size:20px;line-height:1.45}.seo-index-card p{color:var(--muted);font-size:14px;line-height:1.8}.seo-index-card a{display:inline-block;margin-top:14px;color:var(--tech-blue);font-weight:600}
.seo-section-title{margin:0 0 26px;text-align:center;color:var(--navy);font-size:30px}.seo-section-lead{max-width:850px;margin:-14px auto 28px;text-align:center;color:var(--muted);font-size:16px;line-height:1.8}
.procurement-strip{padding:48px 0;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.procurement-strip .seo-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.procurement-strip .seo-index-card{box-shadow:none;background:linear-gradient(180deg,#fff,#f8fbff);border-top:3px solid var(--tech-blue)}
.updated-time{margin-top:18px;color:#98a2b3;font-size:13px}.footer-links{padding:12px 0 22px;text-align:center;color:#98a2b3}.footer-links a{margin:0 8px;color:#667085}
@media (max-width:980px){.seo-layout{grid-template-columns:1fr}.seo-side{grid-template-columns:repeat(2,minmax(0,1fr))}.seo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.procurement-strip .seo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:768px){.seo-hero{padding:38px 0}.seo-hero h1{font-size:28px}.seo-hero p{font-size:16px}.seo-main{padding:36px 0 52px}.seo-article{padding:24px 18px}.seo-article h2{font-size:22px}.seo-grid,.seo-side,.procurement-strip .seo-grid{grid-template-columns:1fr}.seo-index-card{padding:20px}}