/* ======================================================
   template_rm_sidebar_v36  —  左侧固定侧栏式学术门户布局
   配色：深蓝灰(#1e293b) + 学术蓝(#2563eb) + 浅灰白底
   ====================================================== */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --sb-bg:#f8fafc;--sb-white:#fff;--sb-dark:#1e293b;--sb-dark-2:#334155;
  --sb-primary:#2563eb;--sb-primary-dark:#1d4ed8;--sb-primary-soft:#dbeafe;
  --sb-gray:#64748b;--sb-gray-2:#94a3b8;--sb-gray-3:#e2e8f0;--sb-gray-4:#f1f5f9;
  --sb-border:#e2e8f0;--sb-success:#10b981;--sb-warn:#f59e0b;
  --sb-radius:8px;--sb-radius-lg:12px;--sb-shadow:0 1px 3px rgba(0,0,0,.08);
  --sb-shadow-lg:0 10px 25px rgba(30,41,59,.1);
}
html{scroll-behavior:smooth}
body{font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--sb-dark);background:var(--sb-bg);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{border:0;cursor:pointer;font-family:inherit;background:none}
h1,h2,h3,h4,h5{font-weight:600;line-height:1.4}

/* ====== 移动端顶部条 ====== */
.sb-mobile-top{display:none;position:sticky;top:0;z-index:100;background:var(--sb-white);padding:14px 20px;border-bottom:1px solid var(--sb-border);justify-content:space-between;align-items:center}
.sb-mob-brand{font-weight:700;color:var(--sb-primary);font-size:17px}
.sb-mob-toggle{width:36px;height:36px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:6px;background:var(--sb-gray-4)}
.sb-mob-toggle span{display:block;width:20px;height:2px;background:var(--sb-dark);border-radius:2px;transition:.3s}
.sb-mob-toggle.sb-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.sb-mob-toggle.sb-open span:nth-child(2){opacity:0}
.sb-mob-toggle.sb-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ====== 左侧固定侧栏（桌面端） ====== */
.sb-sidebar{position:fixed;left:0;top:0;bottom:0;width:260px;background:var(--sb-dark);color:#cbd5e1;z-index:90;overflow-y:auto;transition:transform .3s ease}
.sb-side-inner{padding:28px 20px 24px;min-height:100%;display:flex;flex-direction:column}
.sb-logo-block{display:flex;align-items:center;gap:12px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:20px}
.sb-logo-mark{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,var(--sb-primary),#60a5fa);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;flex-shrink:0}
.sb-logo-name{display:block;color:#fff;font-size:15px;font-weight:600}
.sb-logo-sub{display:block;font-size:11px;color:#94a3b8;margin-top:2px}

.sb-side-nav{display:flex;flex-direction:column;gap:2px;flex:1}
.sb-nav-link{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:var(--sb-radius);color:#cbd5e1;font-size:14px;transition:all .2s}
.sb-nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-nav-link.sb-active{background:var(--sb-primary);color:#fff;font-weight:500}
.sb-nav-ico{width:22px;text-align:center;font-size:15px}

.sb-side-cta{margin-top:24px;padding:16px;background:rgba(37,99,235,.15);border:1px solid rgba(96,165,250,.3);border-radius:var(--sb-radius);text-align:center}
.sb-cta-label{font-size:12px;color:#93c5fd;margin-bottom:6px}
.sb-cta-phone{display:block;color:#fff;font-size:18px;font-weight:700;letter-spacing:.5px}
.sb-cta-hours{font-size:11px;color:#94a3b8;margin-top:6px}

.sb-side-foot{margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:6px}
.sb-side-foot a{font-size:11px;color:#64748b}
.sb-side-foot a:hover{color:#94a3b8}

.sb-mobile-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:80}

/* ====== 右侧主内容区 ====== */
.sb-main{margin-left:260px;min-height:100vh}
.sb-section{padding:64px 36px}
.sb-section-gray{background:var(--sb-gray-4)}
.sb-section-dark{background:linear-gradient(135deg,#1e3a8a,#1e293b);color:#e2e8f0}

.sb-section-head{max-width:1200px;margin:0 auto 40px}
.sb-section-tag{display:inline-block;padding:4px 12px;background:var(--sb-primary-soft);color:var(--sb-primary);font-size:12px;font-weight:600;border-radius:20px;margin-bottom:12px;letter-spacing:1px}
.sb-section-head-light .sb-section-tag{background:rgba(96,165,250,.2);color:#93c5fd}
.sb-section-title{font-size:28px;color:var(--sb-dark);margin-bottom:10px;letter-spacing:-.5px}
.sb-section-dark .sb-section-title{color:#fff}
.sb-section-sub{color:var(--sb-gray);font-size:15px;max-width:700px}
.sb-section-dark .sb-section-sub{color:#94a3b8}

/* ====== 按钮 ====== */
.sb-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:var(--sb-radius);font-size:15px;font-weight:500;transition:all .2s;white-space:nowrap}
.sb-btn-lg{padding:14px 30px;font-size:16px}
.sb-btn-block{width:100%;justify-content:center}
.sb-btn-primary{background:var(--sb-primary);color:#fff}
.sb-btn-primary:hover{background:var(--sb-primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px rgba(37,99,235,.3)}
.sb-btn-ghost{background:transparent;color:var(--sb-dark);border:1px solid var(--sb-border)}
.sb-btn-ghost:hover{border-color:var(--sb-primary);color:var(--sb-primary)}
.sb-btn-outline{background:transparent;color:var(--sb-primary);border:1px solid var(--sb-primary)}
.sb-btn-outline:hover{background:var(--sb-primary);color:#fff}

/* ====== HERO 左右分栏 ====== */
.sb-hero{padding:48px 36px 64px;background:linear-gradient(135deg,#f0f5ff 0%,#eff6ff 60%,#f8fafc 100%);min-height:calc(100vh - 0px);display:flex;align-items:center}
.sb-hero-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:center;width:100%}
.sb-hero-badge{display:inline-block;padding:6px 14px;background:#fff;border:1px solid var(--sb-primary-soft);color:var(--sb-primary);font-size:12px;border-radius:20px;margin-bottom:20px;font-weight:500}
.sb-hero-title{font-size:38px;font-weight:700;line-height:1.3;color:var(--sb-dark);margin-bottom:16px;letter-spacing:-1px}
.sb-hero-accent{background:linear-gradient(90deg,var(--sb-primary),#60a5fa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.sb-hero-sub{font-size:16px;color:var(--sb-gray);margin-bottom:28px;line-height:1.8}
.sb-hero-btns{display:flex;gap:14px;margin-bottom:36px;flex-wrap:wrap}
.sb-hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding-top:28px;border-top:1px solid var(--sb-border)}
.sb-stat-num{display:block;font-size:26px;font-weight:700;color:var(--sb-primary);margin-bottom:4px}
.sb-stat-label{font-size:12px;color:var(--sb-gray)}

.sb-hero-right{position:relative}
.sb-hero-img-wrap{position:relative;border-radius:var(--sb-radius-lg);overflow:hidden;box-shadow:var(--sb-shadow-lg)}
.sb-hero-img{width:100%;height:320px;object-fit:cover}
.sb-hero-img-tag{position:absolute;top:16px;left:16px;padding:6px 12px;background:rgba(255,255,255,.95);color:var(--sb-primary);font-size:12px;font-weight:500;border-radius:20px}
.sb-hero-phone-card{position:absolute;left:-24px;bottom:-20px;background:#fff;padding:16px 20px;border-radius:var(--sb-radius);box-shadow:var(--sb-shadow-lg);display:flex;align-items:center;gap:12px}
.sb-phone-ico{width:44px;height:44px;border-radius:50%;background:var(--sb-primary-soft);display:flex;align-items:center;justify-content:center;font-size:20px}
.sb-phone-label{font-size:12px;color:var(--sb-gray)}
.sb-phone-num{font-size:18px;font-weight:700;color:var(--sb-primary)}

/* ====== IVF 三列卡片 ====== */
.sb-ivf-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sb-ivf-card{background:#fff;border-radius:var(--sb-radius-lg);padding:32px 28px;box-shadow:var(--sb-shadow);border-top:4px solid var(--sb-primary);transition:all .3s;position:relative}
.sb-ivf-card:hover{transform:translateY(-4px);box-shadow:var(--sb-shadow-lg)}
.sb-ivf-1{border-top-color:#2563eb}
.sb-ivf-2{border-top-color:#0ea5e9}
.sb-ivf-3{border-top-color:#8b5cf6}
.sb-ivf-num{position:absolute;top:20px;right:24px;font-size:48px;font-weight:800;color:var(--sb-gray-3);line-height:1}
.sb-ivf-name{font-size:20px;margin-bottom:4px;color:var(--sb-dark)}
.sb-ivf-en{font-size:12px;color:var(--sb-gray);margin-bottom:16px;font-family:"Inter",monospace}
.sb-ivf-desc p{font-size:14px;color:var(--sb-dark-2);margin-bottom:16px;line-height:1.7}
.sb-ivf-info{margin-bottom:20px}
.sb-ivf-info li{font-size:13px;color:var(--sb-gray);padding:8px 0;border-bottom:1px dashed var(--sb-border);line-height:1.6}
.sb-ivf-info li:last-child{border-bottom:0}
.sb-ivf-info b{color:var(--sb-dark-2);font-weight:600}
.sb-ivf-link{display:inline-block;padding:8px 0;color:var(--sb-primary);font-size:13px;font-weight:500;border-bottom:1px solid transparent;transition:.2s}
.sb-ivf-link:hover{border-bottom-color:var(--sb-primary)}

/* ====== 诊疗服务：左侧标签+右侧面板 ====== */
.sb-diag-layout{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:200px 1fr;gap:32px;background:#fff;border-radius:var(--sb-radius-lg);box-shadow:var(--sb-shadow);overflow:hidden}
.sb-diag-tabs{display:flex;flex-direction:column;background:var(--sb-gray-4);padding:12px}
.sb-diag-tab{text-align:left;padding:14px 16px;font-size:14px;border-radius:var(--sb-radius);color:var(--sb-gray);transition:all .2s}
.sb-diag-tab:hover{background:#fff;color:var(--sb-dark)}
.sb-diag-tab.sb-tab-active{background:var(--sb-primary);color:#fff;font-weight:500;box-shadow:0 2px 8px rgba(37,99,235,.25)}
.sb-diag-panels{padding:32px}
.sb-diag-panel{display:none}
.sb-diag-panel.sb-panel-active{display:block;animation:fadeIn .3s}
.sb-diag-panel h3{font-size:20px;margin-bottom:20px;color:var(--sb-dark)}
.sb-check-list li{padding:12px 0 12px 20px;position:relative;font-size:14px;color:var(--sb-dark-2);border-bottom:1px solid var(--sb-gray-4);line-height:1.7}
.sb-check-list li:before{content:"";position:absolute;left:0;top:20px;width:8px;height:8px;border-radius:50%;background:var(--sb-primary)}
.sb-check-list b{color:var(--sb-dark)}
.sb-diag-note{margin-top:20px;padding:14px 18px;background:#fef3c7;border-left:3px solid var(--sb-warn);border-radius:4px;font-size:13px;color:#92400e}
.sb-exam-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:16px}
.sb-exam-item{background:var(--sb-gray-4);padding:20px;border-radius:var(--sb-radius)}
.sb-exam-item h4{font-size:15px;margin-bottom:12px;color:var(--sb-primary)}
.sb-exam-item li{padding:6px 0;font-size:13px;color:var(--sb-dark-2);padding-left:16px;position:relative}
.sb-exam-item li:before{content:"•";position:absolute;left:0;color:var(--sb-primary)}

/* ====== 健康知识 2x2 矩阵 ====== */
.sb-health-matrix{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.sb-health-item{background:#fff;border-radius:var(--sb-radius-lg);padding:28px;box-shadow:var(--sb-shadow);transition:all .3s;display:block;border-left:4px solid transparent}
.sb-health-item:hover{transform:translateY(-2px);box-shadow:var(--sb-shadow-lg)}
.sb-h-1{border-left-color:#ec4899}
.sb-h-2{border-left-color:#3b82f6}
.sb-h-3{border-left-color:#06b6d4}
.sb-h-4{border-left-color:#8b5cf6}
.sb-h-ico{font-size:32px;margin-bottom:12px}
.sb-health-item h4{font-size:18px;margin-bottom:8px;color:var(--sb-dark)}
.sb-health-item p{font-size:14px;color:var(--sb-gray);line-height:1.7;margin-bottom:14px}
.sb-h-more{font-size:13px;color:var(--sb-primary);font-weight:500}

/* ====== 流程横向时间线 ====== */
.sb-flow-timeline{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(6,1fr);gap:0;position:relative;padding:20px 0}
.sb-flow-timeline:before{content:"";position:absolute;top:60px;left:6%;right:6%;height:2px;background:rgba(255,255,255,.2)}
.sb-flow-item{text-align:center;position:relative;padding:0 8px}
.sb-flow-num{width:56px;height:56px;border-radius:50%;background:var(--sb-primary);color:#fff;font-size:22px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;position:relative;z-index:2;box-shadow:0 4px 12px rgba(37,99,235,.4)}
.sb-flow-content{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:var(--sb-radius);padding:16px;text-align:left;backdrop-filter:blur(8px)}
.sb-flow-content h4{font-size:15px;color:#fff;margin-bottom:8px}
.sb-flow-content p{font-size:12px;color:#94a3b8;line-height:1.6;margin-bottom:6px}
.sb-flow-content p.sb-flow-time{color:#60a5fa;font-size:11px;margin-bottom:0}
.sb-process-note{max-width:1200px;margin:24px auto 0;font-size:12px;color:#94a3b8;text-align:center;font-style:italic}

/* ====== 医疗团队 ====== */
.sb-team-intro{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center}
.sb-team-text h3{font-size:22px;margin-bottom:16px;color:var(--sb-dark)}
.sb-team-text > p{color:var(--sb-gray);margin-bottom:20px;line-height:1.8}
.sb-team-roles li{padding:10px 0;border-bottom:1px solid var(--sb-border);font-size:14px;color:var(--sb-dark-2);line-height:1.6}
.sb-team-roles b{color:var(--sb-dark)}
.sb-team-note{margin-top:16px;padding:12px 16px;background:#fef2f2;border-left:3px solid #ef4444;border-radius:4px;font-size:12px;color:#991b1b}
.sb-team-ph-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:16px}
.sb-avatar{aspect-ratio:1;border-radius:50%;background:linear-gradient(135deg,var(--sb-primary-soft),#bfdbfe);display:flex;align-items:center;justify-content:center;color:var(--sb-primary);font-size:13px;font-weight:600}
.sb-team-ph-text{font-size:12px;color:var(--sb-gray);text-align:center}

/* ====== FAQ 两列 ====== */
.sb-faq-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.sb-faq-item{background:#fff;border-radius:var(--sb-radius);box-shadow:var(--sb-shadow);overflow:hidden;margin-bottom:12px}
.sb-faq-q{width:100%;padding:18px 22px;display:flex;justify-content:space-between;align-items:center;font-size:15px;color:var(--sb-dark);font-weight:500;text-align:left;gap:12px}
.sb-faq-ico{width:24px;height:24px;border-radius:50%;background:var(--sb-primary-soft);color:var(--sb-primary);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;transition:.3s}
.sb-faq-item.sb-open .sb-faq-ico{background:var(--sb-primary);color:#fff;transform:rotate(45deg)}
.sb-faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.sb-faq-item.sb-open .sb-faq-a{max-height:400px}
.sb-faq-a p{padding:0 22px 18px;font-size:14px;color:var(--sb-gray);line-height:1.8}

/* ====== 关于我们 ====== */
.sb-about-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.sb-about-desc{font-size:15px;color:var(--sb-gray);line-height:1.8;margin-top:16px}
.sb-about-list li{padding:10px 0;font-size:14px;color:var(--sb-dark-2);border-bottom:1px solid var(--sb-border)}

/* ====== 资讯列表 —— 严格按规则 ====== */
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;max-width:1200px;margin:0 auto}
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:var(--sb-radius-lg);overflow:hidden;box-shadow:var(--sb-shadow);transition:all .3s}
ul.article-cards > li.article-card:hover{transform:translateY(-3px);box-shadow:var(--sb-shadow-lg)}
.article-card .card-thumb{width:100%;overflow:hidden}
.article-card .card-thumb img{display:block;width:100%;max-width:100%;height:180px;object-fit:cover}
.article-card .card-title{overflow-wrap:anywhere;padding:16px 18px 8px;font-size:15px;font-weight:600;color:var(--sb-dark);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-card .card-date{display:block;padding:0 18px;font-size:12px;color:var(--sb-gray-2)}
.article-card .card-summary{overflow-wrap:anywhere;padding:8px 18px 18px;font-size:13px;color:var(--sb-gray);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ====== 联系卡片 ====== */
.sb-contact-card{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 380px;gap:40px;background:linear-gradient(135deg,#fff,#f8fafc);border-radius:var(--sb-radius-lg);box-shadow:var(--sb-shadow-lg);padding:40px;overflow:hidden}
.sb-contact-desc{font-size:15px;color:var(--sb-gray);line-height:1.8;margin:16px 0 28px}
.sb-contact-items{display:flex;flex-direction:column;gap:16px}
.sb-contact-item{display:flex;gap:14px;align-items:flex-start;padding:16px;background:#fff;border-radius:var(--sb-radius);border:1px solid var(--sb-border)}
.sb-ci-ico{font-size:22px}
.sb-ci-label{font-size:12px;color:var(--sb-gray);margin-bottom:4px}
.sb-ci-val{font-size:15px;color:var(--sb-dark);font-weight:500}
.sb-ci-val a{color:var(--sb-primary)}
.sb-contact-right{background:#fff;border-radius:var(--sb-radius);padding:24px;box-shadow:var(--sb-shadow)}
.sb-contact-form h4{font-size:17px;margin-bottom:6px;color:var(--sb-dark)}
.sb-form-note{font-size:11px;color:var(--sb-gray-2);margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--sb-border)}
.sb-form-row{margin-bottom:14px}
.sb-form-row label{display:block;font-size:13px;color:var(--sb-dark-2);margin-bottom:6px;font-weight:500}
.sb-form-row input,.sb-form-row select,.sb-form-row textarea{width:100%;padding:10px 12px;border:1px solid var(--sb-border);border-radius:6px;font-size:14px;font-family:inherit;background:#fff;color:var(--sb-dark);transition:border-color .2s}
.sb-form-row input:focus,.sb-form-row select:focus,.sb-form-row textarea:focus{outline:none;border-color:var(--sb-primary)}
.sb-form-row textarea{resize:vertical;min-height:70px}

/* ====== 主内容区页脚 ====== */
.sb-main-footer{margin-left:0;background:var(--sb-dark);color:#94a3b8;padding:48px 36px 28px}
.sb-foot-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px}
.sb-foot-title{color:#fff;font-size:15px;margin-bottom:16px}
.sb-foot-desc{font-size:13px;line-height:1.7;margin-bottom:12px}
.sb-foot-disclaimer{font-size:11px;color:#64748b;padding:10px 12px;background:rgba(255,255,255,.05);border-radius:4px;line-height:1.6}
.sb-foot-list li{padding:4px 0;font-size:13px}
.sb-foot-list a:hover{color:#fff}
.sb-foot-grouplink{display:flex;flex-direction:column;gap:4px}
.sb-foot-grouplink a{font-size:12px;color:#64748b}
.sb-foot-grouplink a:hover{color:#94a3b8}
.sb-foot-sitemap{display:inline-block;margin-top:12px;font-size:12px;color:#94a3b8;border-top:1px solid rgba(255,255,255,.1);padding-top:12px}
.sb-foot-phone a{color:#60a5fa;font-weight:600}
.sb-foot-time{font-size:12px;margin:6px 0}
.sb-foot-copy{font-size:12px;padding-top:12px;border-top:1px solid rgba(255,255,255,.1);margin-top:12px}

/* ====== 文章详情页 ====== */
.sb-art-bread{padding:20px 36px 0;background:var(--sb-bg);font-size:13px;color:var(--sb-gray);max-width:1200px;margin:0 auto}
.sb-art-bread a{color:var(--sb-primary)}
.sb-art-layout{max-width:1200px;margin:0 auto;padding:24px 36px 64px;display:grid;grid-template-columns:1fr 280px;gap:36px}
.sb-article{background:#fff;border-radius:var(--sb-radius-lg);padding:36px;box-shadow:var(--sb-shadow)}
.sb-art-cat{display:inline-block;padding:4px 12px;background:var(--sb-primary-soft);color:var(--sb-primary);font-size:12px;border-radius:20px;margin-bottom:14px}
.sb-art-title{font-size:28px;color:var(--sb-dark);margin-bottom:12px;line-height:1.4}
.sb-art-summary{font-size:15px;color:var(--sb-gray);padding:16px;background:var(--sb-gray-4);border-radius:var(--sb-radius);margin-bottom:16px;line-height:1.8;border-left:3px solid var(--sb-primary)}
.sb-art-meta{display:flex;gap:16px;font-size:13px;color:var(--sb-gray-2);padding-bottom:24px;border-bottom:1px solid var(--sb-border);margin-bottom:24px;flex-wrap:wrap}
.sb-art-tag{padding:2px 10px;background:var(--sb-gray-4);border-radius:4px;color:var(--sb-gray);font-size:12px}
.sb-art-cover{border-radius:var(--sb-radius);overflow:hidden;margin-bottom:28px}
.sb-art-cover img{width:100%;max-height:400px;object-fit:cover}
.sb-art-body{font-size:15px;color:var(--sb-dark-2);line-height:1.9;margin-bottom:28px}
.sb-art-body h2,.sb-art-body h3,.sb-art-body h4{color:var(--sb-dark);margin:28px 0 14px}
.sb-art-body h2{font-size:22px}
.sb-art-body h3{font-size:19px}
.sb-art-body p{margin-bottom:14px}
.sb-art-body img{max-width:100%;border-radius:var(--sb-radius);margin:16px 0}
.sb-art-body ul,.sb-art-body ol{padding-left:20px;margin-bottom:14px}
.sb-art-body li{margin-bottom:6px}
.sb-art-disclaimer{padding:18px 20px;background:#fffbeb;border:1px solid #fde68a;border-radius:var(--sb-radius);font-size:13px;color:#92400e;line-height:1.7;margin-bottom:28px}
.sb-art-related h3{font-size:18px;margin-bottom:16px;color:var(--sb-dark)}
.sb-art-rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:28px}
.sb-art-rel{padding:12px 16px;background:var(--sb-gray-4);border-radius:var(--sb-radius);font-size:13px;color:var(--sb-dark-2);text-align:center;transition:.2s}
.sb-art-rel:hover{background:var(--sb-primary);color:#fff}
.sb-art-cta{background:linear-gradient(135deg,var(--sb-primary),#60a5fa);border-radius:var(--sb-radius-lg);padding:28px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.sb-art-cta-text h4{color:#fff;font-size:18px;margin-bottom:6px}
.sb-art-cta-text p{color:#bfdbfe;font-size:13px}
.sb-art-cta-btns{display:flex;gap:10px;flex-wrap:wrap}
.sb-art-cta .sb-btn-outline{border-color:#fff;color:#fff}
.sb-art-cta .sb-btn-outline:hover{background:#fff;color:var(--sb-primary)}
.sb-art-cta .sb-btn-primary{background:#fff;color:var(--sb-primary)}
.sb-art-cta .sb-btn-primary:hover{background:var(--sb-gray-4)}

.sb-art-toc{background:#fff;border-radius:var(--sb-radius);padding:20px;box-shadow:var(--sb-shadow);margin-bottom:20px;position:sticky;top:20px}
.sb-art-toc h5{font-size:14px;margin-bottom:12px;color:var(--sb-dark);padding-bottom:10px;border-bottom:1px solid var(--sb-border)}
.sb-toc-list{display:flex;flex-direction:column;gap:4px}
.sb-toc-item{padding:8px 12px;font-size:13px;color:var(--sb-gray);border-radius:6px;display:block;transition:.2s}
.sb-toc-item:hover{background:var(--sb-gray-4);color:var(--sb-dark)}
.sb-toc-item.sb-toc-active{background:var(--sb-primary-soft);color:var(--sb-primary);font-weight:500}
.sb-art-contact-card{background:linear-gradient(135deg,var(--sb-primary),#3b82f6);border-radius:var(--sb-radius);padding:20px;color:#fff;text-align:center}
.sb-art-contact-card h5{font-size:15px;margin-bottom:8px}
.sb-art-contact-card p{font-size:12px;color:#bfdbfe;margin-bottom:14px}
.sb-art-contact-card .sb-btn-primary{background:#fff;color:var(--sb-primary);font-size:14px;padding:10px;margin-bottom:8px}
.sb-art-contact-card .sb-btn-primary:hover{background:var(--sb-gray-4)}
.sb-art-tip{font-size:11px;color:#bfdbfe!important;margin:0!important}

@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* ====== 响应式 ====== */
@media(max-width:1024px){
  .sb-hero-grid{grid-template-columns:1fr;gap:32px}
  .sb-hero-right{order:-1;max-width:500px;margin:0 auto}
  .sb-hero-img{height:260px}
  .sb-ivf-grid{grid-template-columns:1fr}
  .sb-diag-layout{grid-template-columns:1fr}
  .sb-diag-tabs{flex-direction:row;overflow-x:auto;padding:8px}
  .sb-diag-tab{white-space:nowrap}
  .sb-health-matrix{grid-template-columns:1fr}
  .sb-flow-timeline{grid-template-columns:repeat(2,1fr);gap:20px}
  .sb-flow-timeline:before{display:none}
  .sb-team-intro{grid-template-columns:1fr}
  .sb-faq-grid{grid-template-columns:1fr}
  .sb-about-grid{grid-template-columns:1fr}
  .sb-contact-card{grid-template-columns:1fr;padding:28px}
  .sb-foot-grid{grid-template-columns:1fr 1fr}
  .sb-art-layout{grid-template-columns:1fr}
  .sb-art-side{display:none}
  .sb-exam-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .sb-mobile-top{display:flex}
  .sb-sidebar{transform:translateX(-100%);width:260px}
  .sb-sidebar.sb-open{transform:translateX(0)}
  .sb-mobile-overlay.sb-show{display:block}
  .sb-main{margin-left:0}
  .sb-main-footer{padding:36px 20px 24px}
  .sb-section{padding:40px 20px}
  .sb-hero{padding:32px 20px 48px;min-height:auto}
  .sb-hero-title{font-size:26px}
  .sb-hero-stats{grid-template-columns:1fr;gap:16px}
  .sb-hero-phone-card{position:static;margin-top:16px;left:0;bottom:0}
  .sb-hero-img{height:220px}
  .sb-flow-timeline{grid-template-columns:1fr}
  .sb-foot-grid{grid-template-columns:1fr}
  .sb-article{padding:24px 20px}
  .sb-art-title{font-size:22px}
  .sb-art-rel-grid{grid-template-columns:1fr 1fr}
  .sb-art-bread{padding:16px 20px 0}
  .sb-art-layout{padding:20px}
  .sb-art-cta{flex-direction:column;text-align:center}
}