/* 北京SEO独立落地页 - 页面级样式 */
html{scroll-behavior:smooth}
body.bjseo-body{margin:0;background:#f5f8fd;color:#142033;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
.bjseo-body *{box-sizing:border-box}
.bjseo-body img{max-width:100%;height:auto}
.bjseo-site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);border-bottom:1px solid #e3eaf4;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.bjseo-nav{display:flex;align-items:center;justify-content:space-between;gap:20px;max-width:1240px;margin:0 auto;padding:0 16px;min-height:64px}
.bjseo-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:#142033!important;text-decoration:none!important}
.bjseo-brand img{display:block;width:34px;height:34px;border-radius:9px}
.bjseo-brand-text{display:flex;flex-direction:column;line-height:1.15}
.bjseo-brand-text strong{font-size:15px;font-weight:800;letter-spacing:.02em}
.bjseo-brand-text span{margin-top:3px;color:#7b8ba3;font-size:10px;letter-spacing:.08em;text-transform:uppercase}
.bjseo-nav-links{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0;overflow-x:auto;scrollbar-width:none}
.bjseo-nav-links::-webkit-scrollbar{display:none}
.bjseo-nav-links a{display:block;border-radius:8px;padding:8px 11px;color:#526176;font-size:14px;text-decoration:none!important;white-space:nowrap;transition:background .2s ease,color .2s ease}
.bjseo-nav-links a:hover{background:#f0f5ff;color:#2563eb}
.bjseo-nav-links a[aria-current="page"]{background:#eaf2ff;color:#1d4ed8;font-weight:700}
.bjseo-nav-cta{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;min-height:38px;border-radius:9px;background:#2563eb;box-shadow:0 6px 16px rgba(37,99,235,.2);color:#fff!important;padding:0 15px;font-size:13px;font-weight:700;text-decoration:none!important}
.bjseo-nav-cta:hover{background:#1d4ed8;text-decoration:none!important}
.bjseo-site-footer{margin-top:56px;background:#0b1b33;color:#aab8cc;font-size:13px;line-height:1.8}
.bjseo-footer-inner{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px;max-width:1240px;margin:0 auto;padding:38px 16px 24px}
.bjseo-footer-brand{display:flex;align-items:center;gap:10px;color:#fff!important;text-decoration:none!important;font-size:15px;font-weight:800}
.bjseo-footer-brand img{width:32px;height:32px;border-radius:8px}
.bjseo-footer-desc{max-width:300px;margin:12px 0 0;color:#8fa0b8;font-size:13px}
.bjseo-footer-col h3{margin:0 0 10px;color:#fff;font-size:13px;font-weight:700;letter-spacing:.06em}
.bjseo-footer-col ul{display:grid;gap:6px;list-style:none;margin:0;padding:0}
.bjseo-footer-col a{color:#9fb0c7;text-decoration:none;font-size:13px}
.bjseo-footer-col a:hover{color:#fff;text-decoration:underline}
.bjseo-footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;max-width:1240px;margin:0 auto;padding:14px 16px 22px;border-top:1px solid rgba(255,255,255,.1);color:#7f91aa;font-size:12px}
.bjseo-footer-bottom a{color:#9fb0c7;text-decoration:none}
.bjseo-footer-bottom a:hover{color:#fff}
@media (max-width:980px){.bjseo-footer-inner{grid-template-columns:1.4fr 1fr 1fr}.bjseo-footer-col:last-child{grid-column:1/-1}}
@media (max-width:820px){.bjseo-site-header{position:relative}.bjseo-nav{flex-wrap:wrap;gap:10px;padding:10px 16px}.bjseo-nav-links{order:3;width:100%;justify-content:flex-start;padding-bottom:2px}.bjseo-nav-cta{margin-left:auto}.bjseo-page{margin-top:16px}}
@media (max-width:680px){.bjseo-footer-inner{grid-template-columns:1fr 1fr;padding-top:28px}.bjseo-footer-col:first-child{grid-column:1/-1}.bjseo-footer-col:last-child{grid-column:auto}.bjseo-footer-bottom{flex-direction:column}.bjseo-nav-links a{padding:7px 8px;font-size:13px}.bjseo-nav-cta{min-height:34px;padding:0 11px;font-size:12px}.bjseo-brand-text span{font-size:9px}}

.bjseo-page{--bj-ink:#142033;--bj-muted:#5b6b82;--bj-blue:#2563eb;--bj-blue-dark:#0f2a5f;--bj-soft:#f5f8fd;--bj-line:#e3eaf4;max-width:1240px;margin:24px auto 56px;padding:0 16px;color:var(--bj-ink);font-size:16px;line-height:1.75}
.bjseo-page *{box-sizing:border-box}
.bjseo-page a{color:var(--bj-blue);text-decoration:none}
.bjseo-page a:hover{text-decoration:underline}
.bjseo-breadcrumb{display:flex;align-items:center;gap:8px;margin:0 0 14px;color:#7a8799;font-size:13px}
.bjseo-breadcrumb a{color:#5b6b82}
.bjseo-breadcrumb span:last-child{color:#3d4a5e}
.bjseo-hero{position:relative;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(300px,.78fr);gap:28px;align-items:stretch;overflow:hidden;border-radius:22px;background:linear-gradient(135deg,#0b1f45 0%,#123a7a 56%,#1f5fc4 100%);padding:46px 44px;color:#fff;box-shadow:0 18px 46px rgba(15,42,95,.18)}
.bjseo-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:34px 34px;pointer-events:none}
.bjseo-hero:after{content:"";position:absolute;width:340px;height:340px;right:-120px;top:-160px;border-radius:50%;background:radial-gradient(circle,rgba(120,190,255,.3),rgba(120,190,255,0) 68%);pointer-events:none}
.bjseo-hero-copy,.bjseo-hero-card{position:relative;z-index:1}
.bjseo-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(255,255,255,.1);padding:5px 12px;color:#d9e9ff;font-size:12px;letter-spacing:.08em}
.bjseo-eyebrow:before{content:"";width:6px;height:6px;border-radius:50%;background:#67e8f9;box-shadow:0 0 0 3px rgba(103,232,249,.14)}
.bjseo-hero h1{margin:0 0 16px;color:#fff;font-size:clamp(30px,4.2vw,48px);line-height:1.18;letter-spacing:-.03em;font-weight:800}
.bjseo-lead{max-width:700px;margin:0 0 24px;color:rgba(255,255,255,.82);font-size:16px;line-height:1.85}
.bjseo-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.bjseo-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border-radius:10px;padding:0 20px;font-size:14px;font-weight:700;line-height:1;text-decoration:none!important;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
.bjseo-btn:hover{transform:translateY(-1px)}
.bjseo-btn-primary{background:#fff;color:#123a7a!important;box-shadow:0 8px 20px rgba(0,0,0,.16)}
.bjseo-btn-primary:hover{background:#eff6ff}
.bjseo-btn-ghost{border:1px solid rgba(255,255,255,.38);background:rgba(255,255,255,.06);color:#fff!important}
.bjseo-btn-ghost:hover{background:rgba(255,255,255,.14)}
.bjseo-note{margin:16px 0 0;color:rgba(255,255,255,.55);font-size:12px}
.bjseo-hero-card{display:flex;flex-direction:column;justify-content:space-between;border:1px solid rgba(255,255,255,.16);border-radius:18px;background:rgba(255,255,255,.1);padding:22px;backdrop-filter:blur(10px)}
.bjseo-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.14);color:#fff;font-size:13px;font-weight:700}
.bjseo-status-dot{width:8px;height:8px;border-radius:50%;background:#67e8f9;box-shadow:0 0 0 4px rgba(103,232,249,.14)}
.bjseo-checklist{display:grid;gap:13px;margin:16px 0 18px;padding:0;list-style:none}
.bjseo-checklist li{display:flex;gap:12px;align-items:flex-start}
.bjseo-check-no{flex:0 0 auto;color:#8fd7ff;font-size:11px;font-weight:700;letter-spacing:.08em;line-height:1.9}
.bjseo-checklist strong{display:block;color:#fff;font-size:14px;line-height:1.5}
.bjseo-checklist small{display:block;margin-top:2px;color:rgba(255,255,255,.62);font-size:12px;line-height:1.65}
.bjseo-card-foot{border-top:1px solid rgba(255,255,255,.14);padding-top:14px;color:rgba(255,255,255,.56);font-size:12px;letter-spacing:.12em}
.bjseo-anchors{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:18px 0 4px;padding:0}
.bjseo-anchors a{border:1px solid var(--bj-line);border-radius:999px;background:#fff;padding:8px 14px;color:#526176;font-size:13px;text-decoration:none!important;transition:border-color .2s ease,color .2s ease,background .2s ease}
.bjseo-anchors a:hover{border-color:#b9cdf2;background:#f7faff;color:var(--bj-blue)}
.bjseo-section{padding:52px 0 4px;scroll-margin-top:110px}
.bjseo-section-head{max-width:820px;margin-bottom:26px}
.bjseo-kicker{display:block;margin-bottom:9px;color:var(--bj-blue);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.bjseo-section h2{margin:0 0 10px;color:var(--bj-ink);font-size:clamp(24px,3vw,34px);line-height:1.35;letter-spacing:-.02em}
.bjseo-section-head p{margin:0;color:var(--bj-muted);font-size:15px}
.bjseo-grid{display:grid;gap:16px}
.bjseo-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.bjseo-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.bjseo-card,.bjseo-service-card{border:1px solid var(--bj-line);border-radius:16px;background:#fff;padding:22px;box-shadow:0 7px 22px rgba(20,32,51,.04);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.bjseo-card:hover,.bjseo-service-card:hover{transform:translateY(-2px);border-color:#c9d9f3;box-shadow:0 12px 28px rgba(20,32,51,.08)}
.bjseo-card h3,.bjseo-service-card h3{margin:0 0 8px;color:var(--bj-ink);font-size:17px;line-height:1.45}
.bjseo-card p,.bjseo-service-card p{margin:0;color:var(--bj-muted);font-size:14px;line-height:1.8}
.bjseo-service-no{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;margin-bottom:14px;border-radius:9px;background:#eef5ff;color:var(--bj-blue);font-size:12px;font-weight:800}
.bjseo-service-card-accent{background:linear-gradient(160deg,#f7faff,#fff);border-color:#cfe0fa}
.bjseo-callout{margin-top:18px;border-left:3px solid var(--bj-blue);border-radius:0 12px 12px 0;background:var(--bj-soft);padding:16px 18px;color:#40516a;font-size:14px;line-height:1.8}
.bjseo-callout strong{color:var(--bj-ink)}
.bjseo-inline-link{margin:20px 0 0;color:var(--bj-muted);font-size:14px}
.bjseo-section-soft{margin-top:40px;border-radius:20px;background:linear-gradient(180deg,#f7faff,#f2f7ff);padding:34px 30px 30px}
.bjseo-steps{display:grid;gap:12px}
.bjseo-step{display:flex;gap:16px;align-items:flex-start;border:1px solid #dce8f8;border-radius:14px;background:rgba(255,255,255,.8);padding:18px 20px}
.bjseo-step-no{display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--bj-blue);color:#fff;font-size:14px;font-weight:800;box-shadow:0 5px 12px rgba(37,99,235,.22)}
.bjseo-step h3{margin:1px 0 5px;font-size:17px;line-height:1.45}
.bjseo-step p{margin:0;color:var(--bj-muted);font-size:14px;line-height:1.8}
.bjseo-fit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.bjseo-fit-card{border:1px solid var(--bj-line);border-radius:16px;padding:22px}
.bjseo-fit-yes{background:linear-gradient(160deg,#f4fbf8,#fff);border-color:#cfeadf}
.bjseo-fit-no{background:linear-gradient(160deg,#fff9f5,#fff);border-color:#f0ddcf}
.bjseo-fit-card h3{margin:0 0 12px;font-size:17px}
.bjseo-fit-card ul{margin:0;padding:0;list-style:none}
.bjseo-fit-card li{position:relative;margin:8px 0;padding-left:19px;color:#526176;font-size:14px;line-height:1.7}
.bjseo-fit-card li:before{content:"✓";position:absolute;left:0;top:0;color:#109b70;font-weight:800}
.bjseo-fit-no li:before{content:"·";color:#c27939;font-size:22px;line-height:1}
.bjseo-faq{display:grid;gap:10px}
.bjseo-faq details{border:1px solid var(--bj-line);border-radius:13px;background:#fff;transition:border-color .2s ease,box-shadow .2s ease}
.bjseo-faq details[open]{border-color:#bfd3f1;box-shadow:0 8px 22px rgba(20,32,51,.05)}
.bjseo-faq summary{position:relative;cursor:pointer;list-style:none;padding:17px 48px 17px 18px;color:var(--bj-ink);font-size:15px;font-weight:700;line-height:1.55}
.bjseo-faq summary::-webkit-details-marker{display:none}
.bjseo-faq summary:after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);color:#7b91b2;font-size:22px;font-weight:400;line-height:1;transition:transform .2s ease}
.bjseo-faq details[open] summary:after{content:"−";color:var(--bj-blue)}
.bjseo-faq p{margin:0;padding:0 18px 17px;color:var(--bj-muted);font-size:14px;line-height:1.8}
.bjseo-cta{display:flex;align-items:center;justify-content:space-between;gap:26px;margin-top:54px;border-radius:20px;background:linear-gradient(135deg,#0f2a5f,#1d56ad);padding:32px 34px;color:#fff;box-shadow:0 16px 34px rgba(15,42,95,.16)}
.bjseo-kicker-light{color:#8fd7ff}
.bjseo-cta h2{margin:0 0 8px;color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.bjseo-cta p{max-width:640px;margin:0;color:rgba(255,255,255,.72);font-size:14px;line-height:1.8}
.bjseo-cta-actions{display:flex;flex:0 0 auto;flex-wrap:wrap;gap:10px}
.bjseo-btn-light{background:#fff;color:#123a7a!important}
.bjseo-btn-light:hover{background:#eff6ff}
.bjseo-btn-outline-light{border:1px solid rgba(255,255,255,.42);background:rgba(255,255,255,.06);color:#fff!important}
.bjseo-btn-outline-light:hover{background:rgba(255,255,255,.14)}
.bjseo-updated{margin:20px 0 0;color:#8a97a9;font-size:12px;text-align:right}
@media (max-width:980px){
	.bjseo-hero{grid-template-columns:1fr;padding:34px 26px}
	.bjseo-hero-card{max-width:none}
	.bjseo-grid-3{grid-template-columns:1fr 1fr}
	.bjseo-cta{align-items:flex-start;flex-direction:column}
}
@media (max-width:680px){
	.bjseo-page{margin:14px auto 36px;padding:0 12px;font-size:15px}
	.bjseo-breadcrumb{margin-bottom:10px;font-size:12px}
	.bjseo-hero{border-radius:16px;padding:26px 20px}
	.bjseo-hero h1{font-size:29px}
	.bjseo-lead{font-size:14px;line-height:1.8}
	.bjseo-actions{display:grid;grid-template-columns:1fr;gap:10px}
	.bjseo-btn{width:100%}
	.bjseo-note{font-size:11px}
	.bjseo-hero-card{padding:18px}
	.bjseo-anchors{justify-content:flex-start;gap:7px;margin-top:14px}
	.bjseo-anchors a{padding:7px 11px;font-size:12px}
	.bjseo-section{padding-top:38px;scroll-margin-top:92px}
	.bjseo-section h2{font-size:24px}
	.bjseo-grid-3,.bjseo-grid-2,.bjseo-fit-grid{grid-template-columns:1fr}
	.bjseo-section-soft{margin-top:30px;padding:24px 18px 18px}
	.bjseo-step{gap:12px;padding:16px}
	.bjseo-cta{margin-top:38px;border-radius:16px;padding:24px 20px}
	.bjseo-cta-actions{width:100%;display:grid;grid-template-columns:1fr;gap:10px}
	.bjseo-updated{text-align:left}
}
@media (prefers-reduced-motion:reduce){
	.bjseo-page *{transition:none!important}
}

/* 城市SEO独立页补充 */
.bjseo-footer-contact{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 0;font-size:12px}
.bjseo-footer-contact a{color:#9fb0c7;text-decoration:none}
.bjseo-footer-contact a:hover{color:#fff;text-decoration:underline}
.bjseo-city-region{margin-top:30px}
.bjseo-city-region:first-of-type{margin-top:4px}
.bjseo-city-region h2{margin:0 0 12px;color:#142033;font-size:20px;line-height:1.4}
.bjseo-city-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.bjseo-city-card{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid #e3eaf4;border-radius:14px;background:#fff;padding:14px 16px;color:#142033!important;text-decoration:none!important;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.bjseo-city-card:hover{transform:translateY(-2px);border-color:#bfd3f1;box-shadow:0 10px 24px rgba(20,32,51,.07);text-decoration:none!important}
.bjseo-city-card strong{display:block;font-size:15px}
.bjseo-city-card small{display:block;margin-top:2px;color:#7a8799;font-size:11px}
.bjseo-city-card span{flex:0 0 auto;color:#2563eb;font-size:16px;font-weight:700}
.bjseo-city-stat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
.bjseo-city-stat{border:1px solid #e3eaf4;border-radius:14px;background:#fff;padding:18px;text-align:center}
.bjseo-city-stat strong{display:block;color:#1d4ed8;font-size:26px;line-height:1.2}
.bjseo-city-stat span{display:block;margin-top:4px;color:#7a8799;font-size:12px}
@media (max-width:980px){
	.bjseo-city-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:680px){
	.bjseo-city-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
	.bjseo-city-card{padding:12px}
	.bjseo-city-card strong{font-size:14px}
	.bjseo-city-card small{font-size:10px}
	.bjseo-city-stat-grid{grid-template-columns:1fr}
	.bjseo-city-stat{display:flex;align-items:center;justify-content:space-between;text-align:left;padding:14px 16px}
	.bjseo-city-stat strong{font-size:20px}
	.bjseo-city-stat span{margin-top:0}
}
.bjseo-footer-inner.bjseo-footer-3col{grid-template-columns:1.4fr 1fr 1fr}
@media (max-width:980px){
	.bjseo-footer-inner.bjseo-footer-3col{grid-template-columns:1.4fr 1fr 1fr}
	.bjseo-footer-inner.bjseo-footer-3col .bjseo-footer-col:last-child{grid-column:auto}
}