/* ===== V45 全屏Tab单页 青蓝+黑+白 (tb-) ===== */
:root{
  --tb-cyan:#00b4d8;
  --tb-cyan-dark:#0096c7;
  --tb-dark:#0b132b;
  --tb-dark2:#1c2541;
  --tb-accent:#ff6b6b;
  --tb-ink:#1a1a2e;
  --tb-muted:#6c757d;
  --tb-gray:#f8f9fa;
  --tb-line:#e9ecef;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans SC',-apple-system,sans-serif;color:var(--tb-ink);background:#fff;line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.tb-wrap{max-width:1200px;margin:0 auto;padding:0 24px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:all .2s}
.tb-btn{display:inline-block;padding:13px 30px;border-radius:50px;font-weight:500;font-size:14px;cursor:pointer;border:none;transition:.25s;text-align:center;letter-spacing:1px}
.tb-btn-cyan{background:var(--tb-cyan);color:#fff;box-shadow:0 6px 20px rgba(0,180,216,.35)}
.tb-btn-cyan:hover{background:var(--tb-cyan-dark);transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,180,216,.45);color:#fff}
.tb-btn-dark{background:var(--tb-dark);color:#fff}
.tb-btn-dark:hover{background:var(--tb-cyan);color:#fff}
.tb-btn-line{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.8)}
.tb-btn-line:hover{background:#fff;color:var(--tb-dark)}
.tb-btn-block{display:block;width:100%}
.tb-eyebrow{display:inline-block;font-size:11px;letter-spacing:4px;color:var(--tb-cyan);font-weight:700;text-transform:uppercase;margin-bottom:16px}
.tb-eyebrow-light{color:var(--tb-cyan)}
.tb-sec-head{text-align:center;margin-bottom:44px}
.tb-sec-head h2{font-size:34px;font-weight:900;margin:14px 0 10px;color:var(--tb-dark);letter-spacing:-1px}
.tb-sec-head p{color:var(--tb-muted);font-size:15px}

/* Header 透明浮层 */
.tb-header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:18px 0;transition:all .3s}
.tb-header.scrolled{background:rgba(11,19,43,.95);backdrop-filter:blur(10px);padding:12px 0;box-shadow:0 4px 20px rgba(0,0,0,.2)}
.tb-head-inner{max-width:1280px;margin:0 auto;padding:0 30px;display:flex;align-items:center;justify-content:space-between}
.tb-logo{font-size:22px;font-weight:900;color:#fff;letter-spacing:2px}
.tb-nav{display:flex;gap:6px}
.tb-nav-a{padding:8px 18px;color:rgba(255,255,255,.8);font-size:14px;font-weight:500;border-radius:50px;transition:.3s;position:relative}
.tb-nav-a:hover,.tb-nav-a.active{color:#fff;background:rgba(0,180,216,.25)}
.tb-head-tel{color:#fff;font-size:14px;font-weight:700;padding:8px 16px;background:var(--tb-cyan);border-radius:50px}
.tb-burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.tb-burger span{width:22px;height:2px;background:#fff;transition:.3s;display:block}

/* Hero 全屏 */
.tb-hero{position:relative;height:100vh;min-height:680px;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;overflow:hidden}
.tb-hero-bg{position:absolute;inset:0}
.tb-hero-bg img{width:100%;height:100%;object-fit:cover}
.tb-hero-mask{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,19,43,.85) 0%,rgba(28,37,65,.7) 50%,rgba(0,180,216,.4) 100%)}
.tb-hero-center{position:relative;z-index:2;max-width:800px;padding:0 24px;animation:tbFadeUp 1s ease}
@keyframes tbFadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}
.tb-hero-en{font-size:12px;letter-spacing:6px;color:var(--tb-cyan);font-weight:700;margin-bottom:20px;display:block}
.tb-hero-h{font-size:62px;font-weight:900;line-height:1.15;margin-bottom:20px;letter-spacing:-1px}
.tb-hero-p{font-size:17px;opacity:.9;margin-bottom:34px;line-height:1.9}
.tb-hero-btns{display:flex;gap:14px;justify-content:center;margin-bottom:28px;flex-wrap:wrap}
.tb-hero-call a{color:var(--tb-cyan);font-weight:700;font-size:20px;letter-spacing:1px}
.tb-scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.7);font-size:12px;letter-spacing:2px;display:flex;flex-direction:column;align-items:center;gap:10px}
.tb-scroll-hint span{width:1px;height:40px;background:linear-gradient(to bottom,var(--tb-cyan),transparent);animation:tbScroll 2s ease-in-out infinite}
@keyframes tbScroll{0%,100%{opacity:.3;transform:scaleY(.3);transform-origin:top}50%{opacity:1;transform:scaleY(1)}}

/* Tab 切换区 */
.tb-tab-section{background:var(--tb-gray);padding:80px 0 100px}
.tb-tab-head{margin-bottom:40px}
.tb-tab-title{font-size:32px;font-weight:900;color:var(--tb-dark);text-align:center;margin-bottom:28px;letter-spacing:-1px}
.tb-tabs{display:flex;justify-content:center;gap:6px;background:#fff;padding:6px;border-radius:50px;box-shadow:0 4px 20px rgba(0,0,0,.06);max-width:600px;margin:0 auto;flex-wrap:wrap}
.tb-tab{padding:11px 26px;background:transparent;border:none;border-radius:50px;cursor:pointer;font-size:14px;font-weight:500;color:var(--tb-muted);transition:all .3s;font-family:inherit}
.tb-tab.active{background:var(--tb-cyan);color:#fff;box-shadow:0 4px 12px rgba(0,180,216,.3)}
.tb-tab:hover:not(.active){background:var(--tb-gray);color:var(--tb-dark)}
.tb-pane{display:none;animation:tbFadeIn .4s ease}
.tb-pane.active{display:block}
@keyframes tbFadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.tb-pane-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tb-ivfcard{background:#fff;border-radius:12px;padding:32px;transition:all .3s;border-bottom:4px solid var(--tb-line);position:relative;overflow:hidden}
.tb-ivfcard::before{content:'';position:absolute;top:0;left:0;width:4px;height:0;background:var(--tb-cyan);transition:.3s}
.tb-ivfcard:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(0,0,0,.1);border-bottom-color:var(--tb-cyan)}
.tb-ivfcard:hover::before{height:100%}
.tb-ivfcard-cyan{background:linear-gradient(135deg,var(--tb-cyan),var(--tb-cyan-dark));color:#fff;border-bottom-color:var(--tb-cyan)}
.tb-ivfcard-cyan h3,.tb-ivfcard-cyan p,.tb-ivfcard-cyan .tb-ivfsub{color:#fff}
.tb-ivfcard-cyan::before{background:#fff}
.tb-ivfcard-dark{background:var(--tb-dark);color:#fff;border-bottom-color:var(--tb-dark)}
.tb-ivfcard-dark h3,.tb-ivfcard-dark p,.tb-ivfcard-dark .tb-ivfsub{color:#fff}
.tb-ivfnum{font-size:54px;font-weight:900;color:var(--tb-cyan);line-height:1;font-family:Georgia,serif;opacity:.2;margin-bottom:10px}
.tb-ivfcard-cyan .tb-ivfnum{color:#fff;opacity:.3}
.tb-ivfcard-dark .tb-ivfnum{color:var(--tb-cyan);opacity:.6}
.tb-ivfcard h3{font-size:22px;font-weight:700;color:var(--tb-dark);margin-bottom:6px}
.tb-ivfsub{font-size:12px;letter-spacing:2px;color:var(--tb-cyan);margin-bottom:16px;text-transform:uppercase}
.tb-ivfcard-cyan .tb-ivfsub{color:rgba(255,255,255,.8)}
.tb-ivfcard > p{font-size:14px;line-height:1.8;margin-bottom:16px;color:#555}
.tb-ivfcard-cyan > p,.tb-ivfcard-dark > p{color:rgba(255,255,255,.9)}
.tb-ivftags{display:flex;flex-wrap:wrap;gap:6px}
.tb-ivftags span{padding:4px 10px;font-size:11px;border-radius:20px;background:var(--tb-gray);color:var(--tb-muted)}
.tb-ivfcard-cyan .tb-ivftags span{background:rgba(255,255,255,.2);color:#fff}
.tb-ivfcard-dark .tb-ivftags span{background:rgba(255,255,255,.1);color:rgba(255,255,255,.8)}

.tb-svcgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tb-svccell{background:#fff;border-radius:10px;padding:24px;text-align:center;transition:all .3s;border:2px solid transparent}
.tb-svccell:hover{border-color:var(--tb-cyan);transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,180,216,.12)}
.tb-svcic{font-size:36px;display:block;margin-bottom:10px}
.tb-svccell h3{font-size:15px;font-weight:700;color:var(--tb-dark);margin-bottom:6px}
.tb-svccell p{font-size:12px;color:var(--tb-muted);line-height:1.6}

.tb-process{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;position:relative}
.tb-prc{background:#fff;border-radius:10px;padding:24px 16px;text-align:center;transition:all .3s;position:relative}
.tb-prc:hover{background:var(--tb-dark);color:#fff;transform:translateY(-4px)}
.tb-prc:hover .tb-prcnum{color:var(--tb-cyan)}
.tb-prc:hover h4,.tb-prc:hover p{color:#fff}
.tb-prcnum{display:block;font-size:28px;font-weight:900;color:var(--tb-cyan);margin-bottom:10px;font-family:Georgia,serif}
.tb-prc h4{font-size:13px;font-weight:700;color:var(--tb-dark);margin-bottom:6px}
.tb-prc p{font-size:11px;color:var(--tb-muted);line-height:1.6}

.tb-health{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.tb-health-col{padding:36px;border-radius:10px;color:#fff}
.tb-health-f{background:linear-gradient(135deg,#f472b6,#db2777)}
.tb-health-m{background:linear-gradient(135deg,#3b82f6,#1e40af)}
.tb-health-col h3{font-size:22px;font-weight:700;margin-bottom:20px}
.tb-health-col ul{list-style:none}
.tb-health-col li{padding:10px 0 10px 28px;position:relative;font-size:14px;border-bottom:1px dashed rgba(255,255,255,.2)}
.tb-health-col li::before{content:'✓';position:absolute;left:0;color:#fff;font-weight:700}

/* About */
.tb-about{padding:100px 0;background:#fff}
.tb-about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:center}
.tb-about-text h2{font-size:36px;font-weight:900;color:var(--tb-dark);margin-bottom:18px;line-height:1.3}
.tb-about-text > p{font-size:15px;color:var(--tb-muted);line-height:1.9;margin-bottom:24px}
.tb-about-list{list-style:none;columns:2;column-gap:30px}
.tb-about-list li{padding:8px 0;font-size:13px;color:#555;break-inside:avoid}
.tb-about-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.tb-stat-card{background:var(--tb-gray);border-radius:12px;padding:28px;text-align:center;transition:all .3s}
.tb-stat-card:hover{transform:translateY(-4px);box-shadow:0 12px 24px rgba(0,0,0,.08)}
.tb-stat-cyan{background:linear-gradient(135deg,var(--tb-cyan),var(--tb-cyan-dark));color:#fff}
.tb-stat-cyan .tb-stat-num,.tb-stat-cyan p{color:#fff}
.tb-stat-dark{background:var(--tb-dark);color:#fff}
.tb-stat-dark .tb-stat-num,.tb-stat-dark p{color:#fff}
.tb-stat-num{display:block;font-size:46px;font-weight:900;color:var(--tb-cyan);font-family:Georgia,serif;line-height:1;margin-bottom:8px}
.tb-stat-card p{font-size:13px;color:var(--tb-muted);line-height:1.6;font-weight:500}

/* Band 团队+FAQ */
.tb-info-band{padding:80px 0;background:var(--tb-dark);color:#fff}
.tb-band-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.tb-band-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:32px;transition:.3s}
.tb-band-card:hover{background:rgba(0,180,216,.1);border-color:var(--tb-cyan)}
.tb-band-card h3{font-size:22px;font-weight:700;margin-bottom:10px;color:#fff}
.tb-band-sub{color:rgba(255,255,255,.7);font-size:13px;margin-bottom:20px}
.tb-team-mini{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tb-team-mini > div{background:rgba(255,255,255,.05);padding:14px;border-radius:8px}
.tb-team-mini strong{display:block;font-size:13px;color:var(--tb-cyan);margin-bottom:4px}
.tb-team-mini em{font-size:11px;color:rgba(255,255,255,.6);font-style:normal;line-height:1.5}
.tb-faqmini details{background:rgba(255,255,255,.05);border-radius:6px;margin-bottom:8px;padding:0}
.tb-faqmini summary{padding:12px 16px;cursor:pointer;font-size:13px;font-weight:500;color:#fff;list-style:none;padding-right:40px;position:relative}
.tb-faqmini summary::after{content:'+';position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--tb-cyan);font-size:18px;transition:.3s}
.tb-faqmini details[open] summary::after{content:'−'}
.tb-faqmini details p{padding:0 16px 14px;font-size:12px;color:rgba(255,255,255,.7);line-height:1.7}

/* News */
.tb-news{padding:80px 0;background:var(--tb-gray)}

/* 资讯 Grid 系统规则 */
ul.article-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px;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-radius:10px;overflow:hidden;transition:all .3s}
ul.article-cards > li.article-card:hover{transform:translateY(-6px);box-shadow:0 16px 32px rgba(11,19,43,.1)}
.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(--tb-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}

/* Contact */
.tb-contact{padding:100px 0;background:linear-gradient(135deg,var(--tb-dark) 0%,var(--tb-dark2) 100%);color:#fff}
.tb-contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.tb-contact-text h2{font-size:40px;font-weight:900;margin:14px 0 18px;color:#fff}
.tb-contact-text > p{color:rgba(255,255,255,.7);font-size:15px;line-height:1.9;margin-bottom:24px}
.tb-bigphone{display:inline-block;font-size:30px;font-weight:900;color:var(--tb-cyan);margin-bottom:12px}
.tb-note{font-size:12px;color:rgba(255,255,255,.5)}
.tb-contact-form{background:#fff;border-radius:12px;padding:36px;color:var(--tb-ink)}
.tb-contact-form h3{font-size:20px;font-weight:700;color:var(--tb-dark);margin-bottom:20px;padding-bottom:14px;border-bottom:2px solid var(--tb-cyan)}
.tb-contact-form label{display:block;font-size:13px;color:#555;margin-bottom:14px;font-weight:500}
.tb-contact-form input,.tb-contact-form select,.tb-contact-form textarea{width:100%;padding:10px 12px;border:1px solid var(--tb-line);border-radius:6px;font-size:14px;margin-top:6px;font-family:inherit;background:#fafafa;transition:border .2s}
.tb-contact-form input:focus,.tb-contact-form select:focus,.tb-contact-form textarea:focus{outline:none;border-color:var(--tb-cyan);background:#fff}

/* 详情页 */
.tb-detail{background:#fff}
.tb-detail-hero{position:relative;height:420px;overflow:hidden}
.tb-detail-hero img{width:100%;height:100%;object-fit:cover}
.tb-detail-hero-mask{position:absolute;inset:0;background:linear-gradient(to top,rgba(11,19,43,.95),rgba(11,19,43,.3) 60%,transparent)}
.tb-detail-hero-inner{position:absolute;left:60px;right:60px;bottom:50px;color:#fff;z-index:2}
.tb-detail-hero-inner .tb-breadcrumb{font-size:13px;color:rgba(255,255,255,.7);margin-bottom:14px}
.tb-detail-hero-inner .tb-breadcrumb a{color:var(--tb-cyan)}
.tb-detail-cat{display:inline-block;background:var(--tb-cyan);color:#fff;padding:4px 14px;border-radius:50px;font-size:11px;letter-spacing:2px;font-weight:700;margin-bottom:14px}
.tb-detail-hero-inner h1{font-size:36px;font-weight:900;margin-bottom:10px}
.tb-detail-date{font-size:13px;opacity:.8}
.tb-detail-wrap{max-width:820px;margin:-40px auto 0;padding:0 24px 60px;position:relative;z-index:3}
.tb-detail-main{background:#fff;padding:46px;border-radius:12px;box-shadow:0 -10px 40px rgba(0,0,0,.1)}
.tb-detail-summary{padding:18px 22px;background:#f0fafc;border-left:4px solid var(--tb-cyan);font-size:15px;line-height:1.9;color:#555;margin-bottom:28px;border-radius:0 6px 6px 0}
.tb-detail-content{font-size:15px;line-height:2;color:#3d3d3d}
.tb-detail-content h2,.tb-detail-content h3{color:var(--tb-dark);margin:28px 0 14px;font-weight:700}
.tb-detail-content h2{font-size:24px}
.tb-detail-content h3{font-size:20px}
.tb-detail-content p{margin-bottom:16px}
.tb-detail-content img{border-radius:6px;margin:16px 0}
.tb-disclaim{margin-top:30px;padding:18px 22px;background:#fff9e6;border-left:4px solid #f59e0b;font-size:13px;color:#7d5a00;line-height:1.8;border-radius:0 6px 6px 0}
.tb-detail-btns{display:flex;gap:12px;margin-top:28px;padding-top:28px;border-top:1px solid var(--tb-line);flex-wrap:wrap}
.tb-detail-related{margin-top:30px}
.tb-detail-related h4{font-size:16px;font-weight:700;color:var(--tb-dark);margin-bottom:14px}
.tb-tags{display:flex;flex-wrap:wrap;gap:8px}
.tb-tags a{padding:6px 14px;background:var(--tb-gray);border-radius:50px;font-size:12px;color:#555}
.tb-tags a:hover{background:var(--tb-cyan);color:#fff}

/* Footer */
.tb-foot{background:#070e1e;color:#aaa;padding:60px 0 0}
.tb-foot-inner{max-width:1200px;margin:0 auto;padding:0 24px}
.tb-foot-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.tb-foot-brand h3{color:#fff;font-size:22px;font-weight:900;margin-bottom:14px}
.tb-foot-brand p{font-size:13px;line-height:1.8;opacity:.8;margin-bottom:10px}
.tb-foot-tel a{color:var(--tb-cyan);font-weight:700;font-size:18px}
.tb-foot-col h4{color:#fff;font-size:14px;margin-bottom:14px;font-weight:700}
.tb-foot-col a{display:block;font-size:13px;color:#aaa;padding:4px 0}
.tb-foot-col a:hover{color:var(--tb-cyan)}
.tb-foot-bot{padding:20px 0;text-align:center;font-size:12px;opacity:.6}
.tb-foot-bot a{color:#aaa;margin:0 6px}
.tb-foot-bot a:hover{color:var(--tb-cyan)}

/* 响应式 */
@media(max-width:1024px){
  .tb-nav{display:none;position:absolute;top:100%;left:0;right:0;background:rgba(11,19,43,.98);flex-direction:column;padding:16px;gap:0}
  .tb-nav.open{display:flex}
  .tb-nav a{padding:14px 20px;border-radius:6px}
  .tb-head-tel{display:none}
  .tb-burger{display:flex}
  .tb-hero-h{font-size:40px}
  .tb-pane-grid{grid-template-columns:1fr}
  .tb-svcgrid{grid-template-columns:repeat(2,1fr)}
  .tb-process{grid-template-columns:repeat(3,1fr)}
  .tb-health{grid-template-columns:1fr}
  .tb-about-grid{grid-template-columns:1fr}
  .tb-band-grid{grid-template-columns:1fr}
  .tb-contact-inner{grid-template-columns:1fr}
  .tb-foot-top{grid-template-columns:1fr}
  .tb-detail-hero-inner{left:22px;right:22px}
  .tb-detail-hero-inner h1{font-size:24px}
  .tb-detail-main{padding:30px 22px}
}
@media(max-width:600px){
  .tb-hero-h{font-size:28px}
  .tb-tabs{flex-direction:column;border-radius:12px;padding:8px}
  .tb-tab{border-radius:8px;text-align:center}
  .tb-svcgrid{grid-template-columns:1fr}
  .tb-process{grid-template-columns:repeat(2,1fr)}
  .tb-about-list{columns:1}
  .tb-about-cards{grid-template-columns:1fr}
  .tb-team-mini{grid-template-columns:1fr}
  .tb-detail-hero{height:340px}
  .tb-detail-wrap{padding:0 16px 40px;margin-top:-30px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}