/* ===== V41 博客长文式 (bl-) 墨绿+米白 ===== */
:root{
  --bl-ink:#1f2937;
  --bl-muted:#6b7280;
  --bl-green:#14532d;
  --bl-green2:#166534;
  --bl-accent:#b45309;
  --bl-bg:#fafaf7;
  --bl-card:#ffffff;
  --bl-line:#e7e5e4;
  --bl-serif:'Noto Serif SC','Songti SC',serif;
  --bl-sans:'Noto Sans SC',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--bl-sans);color:var(--bl-ink);background:var(--bl-bg);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased}
.bl-wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.bl-wrap-narrow{max-width:780px}
img{max-width:100%;display:block}
a{color:var(--bl-green);text-decoration:none;transition:color .2s}
a:hover{color:var(--bl-accent)}
.bl-btn{display:inline-block;padding:12px 26px;border-radius:4px;font-weight:500;font-size:15px;cursor:pointer;border:none;transition:all .2s;text-align:center}
.bl-btn-primary{background:var(--bl-green);color:#fff}
.bl-btn-primary:hover{background:var(--bl-green2);color:#fff}
.bl-btn-ghost{background:transparent;color:var(--bl-green);border:1.5px solid var(--bl-green)}
.bl-btn-ghost:hover{background:var(--bl-green);color:#fff}
.bl-btn-outline{background:transparent;color:var(--bl-accent);border:1.5px solid var(--bl-accent)}
.bl-btn-outline:hover{background:var(--bl-accent);color:#fff}
.bl-block{display:block;width:100%}
.bl-kicker{display:inline-block;font-family:var(--bl-serif);font-size:13px;letter-spacing:3px;color:var(--bl-accent);text-transform:uppercase;margin-bottom:12px;font-weight:600}
.bl-eyebrow{display:inline-block;font-family:var(--bl-serif);font-size:13px;letter-spacing:4px;color:var(--bl-accent);text-transform:uppercase;margin-bottom:20px;border-left:3px solid var(--bl-accent);padding-left:12px}
.bl-section{padding:80px 0}
.bl-section-gray{background:#f5f5f1}
.bl-section-head{text-align:center;margin-bottom:50px;max-width:700px;margin-left:auto;margin-right:auto}
.bl-section-head h2{font-family:var(--bl-serif);font-size:34px;font-weight:700;color:var(--bl-ink);margin-bottom:14px;line-height:1.4}
.bl-section-head p{color:var(--bl-muted);font-size:16px;line-height:1.8}

/* 顶栏+导航 */
.bl-topbar{background:var(--bl-green);color:#d1d5db;font-size:13px;padding:8px 0}
.bl-topbar .bl-wrap{display:flex;justify-content:space-between;align-items:center}
.bl-topbar a{color:#fff;font-weight:500}
.bl-mainnav{background:#fff;border-bottom:1px solid var(--bl-line);position:sticky;top:0;z-index:100}
.bl-navrow{display:flex;align-items:center;justify-content:space-between;padding:16px 24px}
.bl-logo{display:flex;align-items:center;gap:10px;font-family:var(--bl-serif);color:var(--bl-green);font-weight:700;font-size:20px}
.bl-logo-mark{width:38px;height:38px;background:var(--bl-green);color:#fff;border-radius:4px;display:flex;align-items:center;justify-content:center;font-weight:900;font-family:var(--bl-serif);font-size:20px}
.bl-menu{display:flex;gap:4px;list-style:none}
.bl-menu a{display:block;padding:8px 14px;color:var(--bl-ink);font-size:15px;border-radius:3px;font-weight:500}
.bl-menu a:hover{background:#f0fdf4;color:var(--bl-green)}
.bl-cta{background:var(--bl-green);color:#fff!important;padding:10px 22px;border-radius:4px;font-size:14px;font-weight:500}
.bl-cta:hover{background:var(--bl-green2)!important}
.bl-burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.bl-burger span{width:24px;height:2px;background:var(--bl-ink);transition:.3s}

/* Hero */
.bl-hero{padding:70px 0 90px;background:linear-gradient(180deg,#f0fdf4 0%,var(--bl-bg) 100%)}
.bl-hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.bl-hero-title{font-family:var(--bl-serif);font-size:46px;font-weight:900;line-height:1.3;color:var(--bl-green);margin-bottom:20px;letter-spacing:1px}
.bl-hero-sub{font-size:17px;color:#374151;line-height:1.9;margin-bottom:28px}
.bl-hero-btns{display:flex;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.bl-hero-phone{font-size:15px;color:var(--bl-muted)}
.bl-hero-phone a{color:var(--bl-accent);font-weight:700;font-size:18px;font-family:var(--bl-serif)}
.bl-hero-img img{width:100%;border-radius:6px;box-shadow:0 20px 60px rgba(20,83,45,.15);aspect-ratio:4/3;object-fit:cover}

/* Intro 博客长文 */
.bl-intro{padding:80px 0;background:#fff}
.bl-intro-inner{max-width:820px;margin:0 auto}
.bl-intro-lead{margin-bottom:30px;padding-bottom:20px;border-bottom:2px solid var(--bl-green)}
.bl-intro-lead h2{font-family:var(--bl-serif);font-size:32px;color:var(--bl-green);line-height:1.4;font-weight:700}
.bl-intro-body p{margin-bottom:20px;font-size:17px;line-height:2;color:#374151}
.bl-dropcap::first-letter{font-family:var(--bl-serif);font-size:58px;float:left;line-height:1;font-weight:900;color:var(--bl-green);margin:6px 12px 0 0}

/* IVF 文章+侧栏 */
.bl-ivf-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;align-items:start}
.bl-ivf-block{padding:30px 0;border-bottom:1px solid var(--bl-line);position:relative}
.bl-ivf-block:last-child{border-bottom:none}
.bl-ivf-num{font-family:var(--bl-serif);font-size:48px;font-weight:900;color:var(--bl-green);line-height:1;display:block;margin-bottom:10px}
.bl-ivf-block h3{font-family:var(--bl-serif);font-size:26px;color:var(--bl-green);margin-bottom:6px;font-weight:700}
.bl-ivf-block h4{font-size:15px;color:var(--bl-accent);font-weight:500;margin-bottom:16px;font-style:italic}
.bl-ivf-block p{font-size:16px;line-height:1.9;color:#374151;margin-bottom:12px}
.bl-side-sticky{position:sticky;top:80px}
.bl-side-card{background:#fff;border:1px solid var(--bl-line);border-radius:6px;padding:20px;margin-bottom:20px}
.bl-side-card h4{font-family:var(--bl-serif);font-size:17px;color:var(--bl-green);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--bl-line)}
.bl-side-card p{font-size:14px;color:var(--bl-muted);line-height:1.7;margin-bottom:14px}
.bl-side-card .bl-block{margin-top:10px}
.bl-mini-table{width:100%;border-collapse:collapse;font-size:14px}
.bl-mini-table td{padding:8px 0;border-bottom:1px dashed var(--bl-line);color:#374151}
.bl-mini-table td:first-child{color:var(--bl-green);font-weight:600;width:60%}
.bl-side-list{list-style:none}
.bl-side-list li{border-bottom:1px dashed var(--bl-line)}
.bl-side-list a{display:block;padding:10px 0;color:#374151;font-size:14px}
.bl-side-list a:hover{color:var(--bl-green);padding-left:6px}
.bl-flow-mini{list-style:none;counter-reset:f}
.bl-flow-mini li{counter-increment:f;padding:8px 0 8px 28px;position:relative;font-size:14px;color:#374151;border-bottom:1px dashed var(--bl-line)}
.bl-flow-mini li::before{content:counter(f);position:absolute;left:0;top:8px;width:20px;height:20px;background:var(--bl-green);color:#fff;border-radius:50%;font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:700}

/* 服务卡片 */
.bl-svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.bl-svc-card{background:var(--bl-card);border:1px solid var(--bl-line);border-radius:6px;padding:28px;transition:all .3s;border-top:3px solid transparent}
.bl-svc-card:hover{border-top-color:var(--bl-green);box-shadow:0 8px 24px rgba(20,83,45,.08);transform:translateY(-3px)}
.bl-svc-ic{font-size:34px;margin-bottom:14px}
.bl-svc-card h3{font-family:var(--bl-serif);font-size:20px;color:var(--bl-green);margin-bottom:10px;font-weight:700}
.bl-svc-card p{font-size:14px;color:var(--bl-muted);line-height:1.8;margin-bottom:14px}
.bl-more{font-size:14px;font-weight:500;color:var(--bl-accent)}

/* 流程 文章式时间轴 */
.bl-flow-article{max-width:800px;margin:0 auto;position:relative;padding-left:40px}
.bl-flow-article::before{content:'';position:absolute;left:25px;top:10px;bottom:10px;width:2px;background:var(--bl-green)}
.bl-flow-step{position:relative;padding:0 0 40px 40px}
.bl-flow-step:last-child{padding-bottom:0}
.bl-flow-step-num{position:absolute;left:-40px;top:0;width:50px;height:50px;background:var(--bl-green);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--bl-serif);font-size:18px;font-weight:700;z-index:2;box-shadow:0 0 0 6px var(--bl-bg)}
.bl-flow-step-body{background:#fff;padding:24px 28px;border-radius:6px;border:1px solid var(--bl-line)}
.bl-flow-step-body h3{font-family:var(--bl-serif);font-size:20px;color:var(--bl-green);margin-bottom:10px}
.bl-flow-step-body p{color:#374151;line-height:1.8;font-size:15px}

/* 团队 */
.bl-team-intro{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.bl-team-col{background:#fff;padding:26px;border-radius:6px;border-top:3px solid var(--bl-green);border:1px solid var(--bl-line);border-top:3px solid var(--bl-green)}
.bl-team-col h3{font-family:var(--bl-serif);font-size:18px;color:var(--bl-green);margin-bottom:12px}
.bl-team-col p{font-size:14px;color:var(--bl-muted);line-height:1.8}

/* FAQ */
.bl-faq details{background:#fff;border:1px solid var(--bl-line);border-radius:6px;margin-bottom:12px;padding:0;transition:all .2s}
.bl-faq details[open]{border-color:var(--bl-green);box-shadow:0 4px 12px rgba(20,83,45,.08)}
.bl-faq summary{padding:18px 24px;cursor:pointer;font-weight:600;color:var(--bl-ink);font-size:16px;list-style:none;position:relative;padding-right:50px;font-family:var(--bl-serif)}
.bl-faq summary::after{content:'+';position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:22px;color:var(--bl-green);font-weight:400;transition:.3s}
.bl-faq details[open] summary::after{content:'−'}
.bl-faq details p{padding:0 24px 20px;color:#374151;line-height:1.9}

/* 资讯 Grid 系统规则 */
ul.article-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px;list-style:none;margin:0;padding:0;width:100%;box-sizing:border-box}
ul.article-cards > li.article-card{min-width:0;width:auto;max-width:none;margin:0;float:none;box-sizing:border-box;background:#fff;border:1px solid var(--bl-line);border-radius:6px;overflow:hidden;transition:all .3s}
ul.article-cards > li.article-card:hover{box-shadow:0 8px 24px rgba(20,83,45,.1);transform:translateY(-3px)}
.article-card .card-thumb{width:100%;overflow:hidden}
.article-card .card-thumb img{display:block;width:100%;max-width:100%;height:auto;object-fit:cover;aspect-ratio:16/10}
.article-card .card-title{overflow-wrap:anywhere;font-family:var(--bl-serif);font-size:16px;color:var(--bl-ink)!important;padding:14px 16px 6px;font-weight:600;line-height:1.5;display:block}
.article-card .card-date{display:block;font-size:12px;color:var(--bl-muted);padding:0 16px}
.article-card .card-summary{overflow-wrap:anywhere;font-size:13px;color:#6b7280;padding:8px 16px 16px;line-height:1.7}

/* CTA 带 */
.bl-cta-band{background:linear-gradient(135deg,var(--bl-green) 0%,var(--bl-green2) 100%);color:#fff}
.bl-cta-band h2,.bl-cta-band p{color:#fff}
.bl-cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.bl-cta-text h2{font-family:var(--bl-serif);font-size:30px;margin-bottom:14px;font-weight:700}
.bl-cta-text p{opacity:.9;font-size:16px;line-height:1.8;margin-bottom:16px}
.bl-cta-phone-big{font-size:22px!important;font-weight:700}
.bl-cta-phone-big a{color:#fde68a!important}
.bl-form{background:#fff;border-radius:6px;padding:28px;color:var(--bl-ink)}
.bl-form h3{font-family:var(--bl-serif);font-size:20px;color:var(--bl-green);margin-bottom:18px;padding-bottom:12px;border-bottom:1px solid var(--bl-line)}
.bl-form label{display:block;font-size:14px;color:#374151;margin-bottom:14px;font-weight:500}
.bl-form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.bl-form input,.bl-form select,.bl-form textarea{width:100%;padding:10px 12px;border:1px solid var(--bl-line);border-radius:4px;font-size:14px;margin-top:6px;font-family:inherit;background:#fafafa;transition:border .2s}
.bl-form input:focus,.bl-form select:focus,.bl-form textarea:focus{outline:none;border-color:var(--bl-green);background:#fff}
.bl-form button{margin-top:8px}
.bl-form-note{font-size:12px;color:var(--bl-muted);margin-top:10px;text-align:center;line-height:1.6}

/* 详情页 */
.bl-detail-wrap{padding:40px 0 80px;background:var(--bl-bg)}
.bl-detail-layout{display:grid;grid-template-columns:1fr 280px;gap:40px;align-items:start}
.bl-detail-main{background:#fff;padding:40px;border-radius:6px;border:1px solid var(--bl-line)}
.bl-breadcrumb{font-size:13px;color:var(--bl-muted);margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid var(--bl-line)}
.bl-breadcrumb a{color:var(--bl-green)}
.bl-detail-head h1{font-family:var(--bl-serif);font-size:32px;color:var(--bl-green);margin-bottom:14px;line-height:1.4;font-weight:700}
.bl-detail-meta{font-size:13px;color:var(--bl-muted);margin-bottom:16px;display:flex;gap:14px}
.bl-tag{background:#f0fdf4;color:var(--bl-green);padding:3px 10px;border-radius:3px;font-size:12px}
.bl-detail-summary{font-size:16px;color:#374151;line-height:1.9;padding:16px 20px;background:#f9fafb;border-left:4px solid var(--bl-green);margin-bottom:24px;border-radius:0 4px 4px 0}
.bl-detail-cover{margin-bottom:24px;border-radius:4px;overflow:hidden}
.bl-detail-cover img{width:100%;height:auto}
.bl-detail-content{font-size:16px;line-height:2;color:#374151}
.bl-detail-content h2,.bl-detail-content h3{font-family:var(--bl-serif);color:var(--bl-green);margin:28px 0 14px}
.bl-detail-content h2{font-size:24px}
.bl-detail-content h3{font-size:20px}
.bl-detail-content p{margin-bottom:16px}
.bl-detail-content img{border-radius:4px;margin:16px 0}
.bl-disclaimer{margin-top:30px;padding:18px 22px;background:#fef3c7;border-left:4px solid var(--bl-accent);border-radius:0 4px 4px 0;font-size:14px;color:#92400e;line-height:1.8}
.bl-related-posts{margin-top:40px;padding-top:30px;border-top:1px solid var(--bl-line)}
.bl-related-posts h3{font-family:var(--bl-serif);font-size:22px;color:var(--bl-green);margin-bottom:16px}
.bl-related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:24px}
.bl-related-grid a{display:block;padding:10px 14px;background:#f9fafb;border:1px solid var(--bl-line);border-radius:4px;font-size:14px;color:#374151;text-align:center}
.bl-related-grid a:hover{background:var(--bl-green);color:#fff;border-color:var(--bl-green)}
.bl-detail-cta{display:flex;gap:14px;flex-wrap:wrap}

/* Footer */
.bl-footer{background:#14532d;color:#d1d5db;padding:60px 0 0}
.bl-foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.bl-foot-brand .bl-logo{color:#fff;margin-bottom:16px}
.bl-foot-brand .bl-logo-mark{background:var(--bl-accent)}
.bl-foot-desc{font-size:14px;line-height:1.8;opacity:.85;margin-bottom:14px}
.bl-foot-phone a{color:#fde68a;font-weight:600}
.bl-foot-col h4{font-family:var(--bl-serif);color:#fff;font-size:16px;margin-bottom:16px}
.bl-foot-col ul{list-style:none}
.bl-foot-col li{margin-bottom:8px}
.bl-foot-col a{color:#d1d5db;font-size:14px}
.bl-foot-col a:hover{color:#fde68a}
.bl-foot-col p{font-size:14px;line-height:1.8;opacity:.8}
.bl-foot-bottom{padding:20px 0;text-align:center;font-size:13px;opacity:.7}
.bl-foot-bottom a{color:#d1d5db;margin:0 6px}
.bl-foot-bottom a:hover{color:#fde68a}

/* 响应式 */
@media(max-width:960px){
  .bl-menu{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:10px 0;box-shadow:0 10px 20px rgba(0,0,0,.1);gap:0}
  .bl-menu.open{display:flex}
  .bl-menu li{width:100%}
  .bl-menu a{padding:14px 24px;border-radius:0}
  .bl-cta{display:none}
  .bl-burger{display:flex}
  .bl-hero-inner{grid-template-columns:1fr;gap:30px}
  .bl-hero-title{font-size:32px}
  .bl-ivf-layout{grid-template-columns:1fr}
  .bl-svc-grid{grid-template-columns:1fr}
  .bl-team-intro{grid-template-columns:repeat(2,1fr)}
  .bl-cta-inner{grid-template-columns:1fr}
  .bl-detail-layout{grid-template-columns:1fr}
  .bl-foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .bl-related-grid{grid-template-columns:1fr 1fr}
  .bl-form-row{grid-template-columns:1fr}
}
@media(max-width:560px){
  .bl-hero-title{font-size:26px}
  .bl-intro-lead h2{font-size:24px}
  .bl-section-head h2{font-size:24px}
  .bl-team-intro{grid-template-columns:1fr}
  .bl-foot-grid{grid-template-columns:1fr}
  .bl-detail-main{padding:20px}
  .bl-related-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}