/* ===== V44 三列卡片门户 中国红+灰+白 (pt-) ===== */
:root{
  --pt-red:#c0392b;
  --pt-red-dark:#a3271b;
  --pt-blue:#2980b9;
  --pt-green:#27ae60;
  --pt-dark:#2c3e50;
  --pt-gray:#f5f6f8;
  --pt-line:#e7e9ee;
  --pt-text:#2d3436;
  --pt-muted:#7f8c8d;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans SC',-apple-system,sans-serif;color:var(--pt-text);background:#fff;line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased}
.pt-wrap{max-width:1200px;margin:0 auto;padding:0 20px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:all .2s}
.pt-btn{display:inline-block;padding:11px 24px;border-radius:4px;font-weight:500;font-size:14px;cursor:pointer;border:none;transition:.2s;text-align:center}
.pt-btn-red{background:var(--pt-red);color:#fff}
.pt-btn-red:hover{background:var(--pt-red-dark);color:#fff}
.pt-btn-blue{background:var(--pt-blue);color:#fff}
.pt-btn-blue:hover{background:#216a9e;color:#fff}
.pt-btn-green{background:var(--pt-green);color:#fff}
.pt-btn-white{background:#fff;color:var(--pt-red);font-weight:700}
.pt-btn-white:hover{background:#f5f5f5}
.pt-btn-outline{background:transparent;color:var(--pt-red);border:1.5px solid var(--pt-red)}
.pt-btn-outline:hover{background:var(--pt-red);color:#fff}
.pt-btn-block{display:block;width:100%}
.pt-btn-lg{padding:16px 34px;font-size:16px}
.pt-tag{display:inline-block;padding:4px 12px;border-radius:3px;font-size:11px;letter-spacing:2px;font-weight:700}
.pt-tag-red{background:var(--pt-red);color:#fff}
.pt-badge{background:#fdecea;color:var(--pt-red);padding:3px 10px;border-radius:3px;font-size:12px;font-weight:500}
.pt-section{padding:70px 0}
.pt-section-gray{background:var(--pt-gray)}
.pt-section-dark{background:var(--pt-dark);color:#fff}
.pt-section-dark h2,.pt-section-dark p{color:#fff}
.pt-sec-head{text-align:center;margin-bottom:44px}
.pt-sec-head h2{font-size:30px;font-weight:900;color:var(--pt-dark);margin-bottom:10px;position:relative;display:inline-block;padding-bottom:12px}
.pt-sec-head h2::after{content:'';position:absolute;left:50%;bottom:0;width:50px;height:3px;background:var(--pt-red);transform:translateX(-50%)}
.pt-sec-head-light h2{color:#fff}
.pt-sec-head-light h2::after{background:var(--pt-red)}
.pt-sec-head p{color:var(--pt-muted);font-size:15px}

/* 顶栏+导航 */
.pt-topbar{background:var(--pt-red);color:rgba(255,255,255,.9);font-size:13px;padding:8px 0}
.pt-topbar .pt-wrap{display:flex;justify-content:space-between;align-items:center}
.pt-topbar a{color:#fff;font-weight:700;margin-left:4px}
.pt-header{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.05);position:sticky;top:0;z-index:100}
.pt-headrow{display:flex;align-items:center;justify-content:space-between;padding:14px 20px}
.pt-logo{display:flex;align-items:center;gap:10px}
.pt-logo-icon{font-size:32px}
.pt-logo-text strong{font-size:20px;color:var(--pt-red);font-weight:900;display:block;line-height:1.1}
.pt-logo-text em{font-size:11px;color:var(--pt-muted);font-style:normal;letter-spacing:2px}
.pt-nav{display:flex;gap:4px}
.pt-nav a{padding:8px 14px;font-size:14px;color:var(--pt-text);font-weight:500;border-radius:4px}
.pt-nav a:hover{background:#fdecea;color:var(--pt-red)}
.pt-head-actions{display:flex;align-items:center;gap:12px}
.pt-burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.pt-burger span{width:22px;height:2px;background:var(--pt-text);transition:.3s;display:block}

/* Hero 门户网格 */
.pt-hero{padding:50px 0 60px;background:linear-gradient(135deg,#fef9f9 0%,#fff 100%)}
.pt-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.pt-hero-main h1{font-size:44px;font-weight:900;color:var(--pt-dark);line-height:1.2;margin:16px 0 18px;letter-spacing:-1px}
.pt-hero-main p{font-size:16px;color:var(--pt-muted);line-height:1.9;margin-bottom:26px;max-width:480px}
.pt-hero-btns{display:flex;gap:12px;margin-bottom:22px;flex-wrap:wrap}
.pt-hero-phone{font-size:14px;color:var(--pt-muted)}
.pt-hero-phone a{color:var(--pt-red);font-weight:700;font-size:18px;margin-left:6px}
.pt-hero-side{display:grid;grid-template-rows:auto 1fr;gap:16px}
.pt-hero-banner{border-radius:8px;overflow:hidden;box-shadow:0 16px 40px rgba(192,57,43,.15)}
.pt-hero-banner img{width:100%;aspect-ratio:16/9;object-fit:cover}
.pt-hero-quick{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.pt-quick-item{display:flex;align-items:center;gap:10px;padding:12px 14px;background:#fff;border:1px solid var(--pt-line);border-radius:6px;transition:.2s}
.pt-quick-item:hover{border-color:var(--pt-red);transform:translateY(-2px);box-shadow:0 6px 14px rgba(192,57,43,.1)}
.pt-quick-ic{font-size:24px}
.pt-quick-item strong{display:block;font-size:13px;color:var(--pt-dark);font-weight:700}
.pt-quick-item em{font-size:11px;color:var(--pt-muted);font-style:normal}

/* 快捷入口6宫格 */
.pt-quick-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.pt-qcard{background:#fff;border:1px solid var(--pt-line);border-radius:8px;padding:22px 14px;text-align:center;transition:all .3s;position:relative;overflow:hidden}
.pt-qcard::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--pt-line);transition:.2s}
.pt-qcard:hover{transform:translateY(-5px);box-shadow:0 12px 24px rgba(0,0,0,.08)}
.pt-qcard:hover::before{background:var(--pt-red);height:3px}
.pt-qcard-red::before{background:var(--pt-red)}
.pt-qcard-blue::before{background:var(--pt-blue)}
.pt-qcard-green::before{background:var(--pt-green)}
.pt-qcard-ic{font-size:34px;margin-bottom:10px;display:block}
.pt-qcard h3{font-size:14px;font-weight:700;color:var(--pt-dark);margin-bottom:6px}
.pt-qcard p{font-size:12px;color:var(--pt-muted);line-height:1.6}
.pt-qcard-go{position:absolute;top:12px;right:12px;color:var(--pt-red);font-size:18px;opacity:0;transition:.3s}
.pt-qcard:hover .pt-qcard-go{opacity:1}

/* IVF 三卡 */
.pt-ivf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pt-ivf-card{background:#fff;border-radius:8px;padding:28px;transition:all .3s;border-top:4px solid var(--pt-blue)}
.pt-ivf-card:hover{transform:translateY(-6px);box-shadow:0 14px 32px rgba(0,0,0,.1)}
.pt-ivf-red{border-top-color:var(--pt-red)}
.pt-ivf-blue{border-top-color:var(--pt-blue)}
.pt-ivf-head{display:flex;align-items:center;gap:14px;margin-bottom:10px}
.pt-ivf-num{width:48px;height:48px;border-radius:50%;background:var(--pt-blue);color:#fff;font-size:22px;font-weight:900;display:flex;align-items:center;justify-content:center;font-family:serif}
.pt-ivf-red .pt-ivf-num{background:var(--pt-red)}
.pt-ivf-blue .pt-ivf-num{background:var(--pt-blue)}
.pt-ivf-card h3{font-size:18px;font-weight:700;color:var(--pt-dark)}
.pt-ivf-en{font-size:12px;color:var(--pt-muted);margin-bottom:14px;letter-spacing:1px}
.pt-ivf-card > p{font-size:14px;color:#555;line-height:1.8;margin-bottom:14px}
.pt-ivf-tags{display:flex;flex-wrap:wrap;gap:6px}
.pt-ivf-tags span{padding:4px 10px;background:var(--pt-gray);font-size:11px;color:var(--pt-muted);border-radius:3px}
.pt-ivf-red .pt-ivf-tags span{background:#fdecea;color:var(--pt-red)}
.pt-ivf-blue .pt-ivf-tags span{background:#e8f4fc;color:var(--pt-blue)}

/* 服务8卡 */
.pt-svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pt-svc-card{background:#fff;border:1px solid var(--pt-line);border-radius:8px;padding:24px;transition:all .3s}
.pt-svc-card:hover{border-color:var(--pt-red);box-shadow:0 8px 20px rgba(192,57,43,.08);transform:translateY(-3px)}
.pt-svc-ic{font-size:32px;margin-bottom:12px}
.pt-svc-card h3{font-size:15px;font-weight:700;color:var(--pt-dark);margin-bottom:8px}
.pt-svc-card p{font-size:13px;color:var(--pt-muted);line-height:1.7}

/* 流程数字带 */
.pt-flow-strip{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}
.pt-flow-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);border-radius:8px;padding:22px 16px;text-align:center;flex:1;min-width:130px;max-width:160px;transition:.3s}
.pt-flow-item:hover{background:rgba(192,57,43,.2);border-color:var(--pt-red);transform:translateY(-4px)}
.pt-flow-num{display:block;font-size:28px;font-weight:900;color:var(--pt-red);font-family:serif;margin-bottom:8px}
.pt-flow-item h4{font-size:14px;color:#fff;margin-bottom:4px;font-weight:700}
.pt-flow-item p{font-size:12px;color:rgba(255,255,255,.6)}
.pt-flow-arrow{color:rgba(255,255,255,.3);font-size:20px;font-weight:300}

/* 2列团队+FAQ */
.pt-two-col{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.pt-two-block{background:#fff;border-radius:8px;padding:32px;border:1px solid var(--pt-line)}
.pt-block-title{font-size:22px;font-weight:900;color:var(--pt-dark);margin-bottom:8px;padding-bottom:14px;border-bottom:2px solid var(--pt-red);display:inline-block}
.pt-block-sub{font-size:14px;color:var(--pt-muted);margin:14px 0 24px;line-height:1.7}
.pt-team-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pt-tcard{background:var(--pt-gray);border-radius:6px;padding:18px;text-align:center;transition:.2s}
.pt-tcard:hover{background:#fdecea}
.pt-tcard-ic{font-size:30px;display:block;margin-bottom:8px}
.pt-tcard h4{font-size:14px;font-weight:700;color:var(--pt-dark);margin-bottom:4px}
.pt-tcard p{font-size:12px;color:var(--pt-muted);line-height:1.6}
.pt-faq-list details{background:var(--pt-gray);border-radius:6px;margin-bottom:8px;padding:0;transition:.2s}
.pt-faq-list details[open]{background:#fdecea}
.pt-faq-list summary{padding:14px 18px;cursor:pointer;font-weight:600;font-size:14px;color:var(--pt-dark);list-style:none;padding-right:44px;position:relative}
.pt-faq-list summary::after{content:'+';position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:18px;color:var(--pt-red);transition:.3s}
.pt-faq-list details[open] summary::after{content:'−'}
.pt-faq-list details p{padding:0 18px 16px;font-size:13px;color:var(--pt-muted);line-height:1.8}

/* 资讯 Grid 系统规则 */
ul.article-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;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(--pt-line);border-radius:8px;overflow:hidden;transition:all .3s}
ul.article-cards > li.article-card:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,0,0,.1);border-color:var(--pt-red)}
.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-size:15px;font-weight:700;color:var(--pt-dark)!important;padding:14px 16px 6px;line-height:1.5;display:block}
.article-card .card-date{display:block;font-size:12px;color:#aaa;padding:0 16px}
.article-card .card-summary{overflow-wrap:anywhere;font-size:13px;color:#888;padding:8px 16px 16px;line-height:1.7}

/* CTA Band */
.pt-cta-band{background:linear-gradient(135deg,var(--pt-red),var(--pt-red-dark));padding:50px 0;color:#fff}
.pt-cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.pt-cta-text h2{font-size:28px;font-weight:900;margin-bottom:8px}
.pt-cta-text p{opacity:.9;font-size:15px;line-height:1.8;max-width:600px}

/* 详情页 */
.pt-detail{padding:40px 0 70px;background:var(--pt-gray)}
.pt-breadcrumb{font-size:13px;color:var(--pt-muted);margin-bottom:20px}
.pt-breadcrumb a{color:var(--pt-red)}
.pt-detail-grid{display:grid;grid-template-columns:1fr 280px;gap:24px;align-items:start}
.pt-detail-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.04)}
.pt-detail-cover img{width:100%;height:auto;max-height:400px;object-fit:cover}
.pt-detail-body{padding:36px}
.pt-detail-body h1{font-size:28px;font-weight:900;color:var(--pt-dark);margin-bottom:14px;line-height:1.4}
.pt-detail-meta{font-size:13px;color:var(--pt-muted);margin-bottom:16px;display:flex;gap:12px;align-items:center}
.pt-detail-lead{padding:16px 20px;background:var(--pt-gray);border-left:4px solid var(--pt-red);font-size:15px;line-height:1.9;color:#555;margin-bottom:24px;border-radius:0 4px 4px 0}
.pt-detail-content{font-size:15px;line-height:1.9;color:#444}
.pt-detail-content h2,.pt-detail-content h3{color:var(--pt-dark);margin:26px 0 12px;font-weight:700}
.pt-detail-content h2{font-size:22px}
.pt-detail-content h3{font-size:18px}
.pt-detail-content p{margin-bottom:14px}
.pt-detail-content img{border-radius:4px;margin:14px 0}
.pt-disclaim{margin-top:28px;padding:16px 20px;background:#fff9e6;border-left:4px solid #f39c12;font-size:13px;color:#7d5a00;line-height:1.8;border-radius:0 4px 4px 0}
.pt-detail-btns{display:flex;gap:12px;margin-top:24px;padding-top:24px;border-top:1px solid var(--pt-line);flex-wrap:wrap}
.pt-sidecard{background:#fff;border-radius:8px;padding:22px;margin-bottom:16px;box-shadow:0 4px 12px rgba(0,0,0,.04)}
.pt-sidecard-cta{background:linear-gradient(135deg,var(--pt-red),var(--pt-red-dark));color:#fff}
.pt-sidecard-cta h4,.pt-sidecard-cta p{color:#fff}
.pt-sidecard h4{font-size:16px;font-weight:700;color:var(--pt-dark);margin-bottom:10px}
.pt-sidecard p{font-size:13px;line-height:1.7;margin-bottom:12px;opacity:.9}
.pt-sidecard .pt-btn-block{margin-top:8px}
.pt-sidelist{list-style:none}
.pt-sidelist li{border-bottom:1px dashed var(--pt-line)}
.pt-sidelist a{display:block;padding:10px 0;font-size:13px;color:#555}
.pt-sidelist a:hover{color:var(--pt-red);padding-left:6px}
.pt-tagcloud{display:flex;flex-wrap:wrap;gap:6px}
.pt-tagcloud a{padding:5px 12px;background:var(--pt-gray);border-radius:3px;font-size:12px;color:#555}
.pt-tagcloud a:hover{background:var(--pt-red);color:#fff}

/* Footer */
.pt-foot{background:var(--pt-dark);color:#bbb;padding:55px 0 0}
.pt-foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.pt-foot-brand h3{color:#fff;font-size:22px;font-weight:900;margin-bottom:14px}
.pt-foot-brand p{font-size:13px;line-height:1.8;opacity:.8;margin-bottom:10px}
.pt-foot-tel a{color:#fff;font-weight:700;font-size:18px}
.pt-foot-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:700}
.pt-foot-links{display:flex;flex-direction:column;gap:6px}
.pt-foot-links a{font-size:13px;color:#bbb}
.pt-foot-links a:hover{color:var(--pt-red)}
.pt-foot-bot{padding:20px 0;text-align:center;font-size:12px;opacity:.6}
.pt-foot-bot a{color:#bbb;margin:0 6px}
.pt-foot-bot a:hover{color:var(--pt-red)}

/* 响应式 */
@media(max-width:1024px){
  .pt-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:8px 0;box-shadow:0 8px 20px rgba(0,0,0,.1);gap:0}
  .pt-nav.open{display:flex}
  .pt-nav a{padding:14px 22px;border-radius:0}
  .pt-head-actions .pt-btn{display:none}
  .pt-burger{display:flex}
  .pt-hero-grid{grid-template-columns:1fr;gap:30px}
  .pt-hero-main h1{font-size:30px}
  .pt-quick-grid{grid-template-columns:repeat(3,1fr)}
  .pt-ivf-grid{grid-template-columns:1fr}
  .pt-svc-grid{grid-template-columns:repeat(2,1fr)}
  .pt-flow-strip{gap:10px}
  .pt-flow-arrow{display:none}
  .pt-flow-item{min-width:calc(50% - 10px);max-width:none}
  .pt-two-col{grid-template-columns:1fr}
  .pt-detail-grid{grid-template-columns:1fr}
  .pt-foot-grid{grid-template-columns:1fr}
  .pt-cta-inner{flex-direction:column;text-align:center}
}
@media(max-width:560px){
  .pt-topbar-msg{display:none}
  .pt-quick-grid{grid-template-columns:repeat(2,1fr)}
  .pt-svc-grid{grid-template-columns:1fr}
  .pt-team-grid{grid-template-columns:1fr}
  .pt-flow-item{min-width:100%}
  .pt-hero-main h1{font-size:26px}
  .pt-detail-body{padding:24px 18px}
  .pt-detail-body h1{font-size:22px}
  .pt-section{padding:50px 0}
  .pt-sec-head h2{font-size:22px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}