:root{--seo-text:#152033;--seo-muted:#667085;--seo-line:#e8edf4;--seo-bg:#f6f8fb;--seo-blue:#1769e0}
body{margin:0;color:var(--seo-text);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif}
.seo-wrap{max-width:1080px;margin:auto;padding:0 22px}.seo-head{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--seo-line);backdrop-filter:blur(12px)}
.seo-head-inner{min-height:66px;display:flex;align-items:center;gap:24px}.seo-logo{font-weight:900;font-size:19px;color:#111827;text-decoration:none}.seo-logo small{font-size:9px;color:#8a94a5;display:block;letter-spacing:.12em}
.seo-head nav{display:flex;gap:18px;flex:1}.seo-head nav a,.seo-footer a{color:#475467;text-decoration:none;font-size:13px}.seo-shop,.seo-cta{background:var(--seo-blue);color:#fff!important;text-decoration:none;padding:10px 16px;border-radius:9px;font-weight:700;font-size:13px}
.seo-hero{padding:74px 0 54px;background:linear-gradient(180deg,#f7faff,#fff)}.seo-kicker{color:var(--seo-blue);font-size:12px;font-weight:800;letter-spacing:.08em}.seo-hero h1{font-size:42px;line-height:1.16;max-width:820px;margin:12px 0 18px}.seo-lead{font-size:17px;line-height:1.9;color:#536074;max-width:820px}
.seo-main{padding:42px 0 72px}.seo-main article{max-width:820px}.seo-main h2{font-size:27px;margin:40px 0 14px}.seo-main h3{font-size:19px;margin:26px 0 9px}.seo-main p,.seo-main li{font-size:15px;line-height:2;color:#445066}.seo-main ul,.seo-main ol{padding-left:22px}
.seo-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0}.seo-point{padding:18px;border:1px solid var(--seo-line);border-radius:12px;background:#fff}.seo-point strong{display:block;margin-bottom:6px}.seo-point span{font-size:13px;color:var(--seo-muted);line-height:1.7}
.seo-callout{margin:34px 0;padding:22px;border-radius:14px;background:var(--seo-bg);border:1px solid var(--seo-line)}.seo-callout h2{margin-top:0}.seo-cta{display:inline-block;margin-top:8px}
.seo-breadcrumb{font-size:12px;color:#8a94a5;margin-bottom:20px}.seo-breadcrumb a{color:#667085;text-decoration:none}
.seo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.seo-card{border:1px solid var(--seo-line);border-radius:14px;padding:20px;text-decoration:none;color:inherit}.seo-card h3{margin:0 0 8px}.seo-card p{font-size:13px;line-height:1.7;color:var(--seo-muted)}
.seo-footer{background:#111827;color:#d1d5db;padding:38px 0}.seo-footer p,.seo-footer small{color:#9ca3af}.seo-footer a{color:#d1d5db}
.contact-form{display:grid;gap:12px;max-width:620px}.contact-form input,.contact-form textarea{padding:12px;border:1px solid #d8e0ea;border-radius:9px;font:inherit}.contact-form textarea{min-height:130px}
@media(max-width:760px){.seo-head nav{display:none}.seo-head-inner{min-height:58px}.seo-shop{margin-left:auto}.seo-hero{padding:48px 0 34px}.seo-hero h1{font-size:31px}.seo-lead{font-size:15px}.seo-points,.seo-grid{grid-template-columns:1fr}.seo-main{padding-top:28px}}