:root{--blue:#2468e8;--navy:#17335b;--mint:#e9f8f3;--orange:#f59e52;--ink:#182538;--muted:#64748b;--line:#e5ebf3;--bg:#f7f9fc}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;background:#fff}a{text-decoration:none;color:inherit}.site-header{height:76px;padding:0 max(24px,calc((100vw - 1180px)/2));display:flex;align-items:center;gap:28px;position:sticky;top:0;background:rgba(255,255,255,.96);z-index:20;border-bottom:1px solid rgba(229,235,243,.8)}.site-brand{display:grid;grid-template-columns:42px auto;grid-template-rows:22px 18px;align-items:center;min-width:180px}.site-brand>span{grid-row:1/3;width:38px;height:38px;border-radius:13px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800;font-size:21px}.site-brand b{font-size:18px}.site-brand small{color:var(--muted)}.site-header nav{display:flex;gap:24px;margin:auto}.site-header nav a{font-size:14px;color:#40516a}.site-header nav a:hover{color:var(--blue)}.header-actions{display:flex;gap:10px}.btn{border:0;border-radius:12px;padding:11px 19px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.primary{background:var(--blue);color:#fff}.outline{border:1px solid #b9c8df;color:var(--navy);background:#fff}.soft{background:#eef4ff;color:var(--blue)}.menu-toggle{display:none;border:0;background:none;font-size:24px}.hero{min-height:610px;padding:90px max(24px,calc((100vw - 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@media(max-width:600px){.site-header{height:68px}.site-brand{min-width:150px}.site-header nav{top:68px}.hero{min-height:auto;padding:58px 20px 70px;gap:38px}.hero h1{font-size:36px}.hero-copy{font-size:17px}.trust-row{flex-direction:column;gap:7px}.study-card{width:285px;height:285px}.section{padding:68px 20px}.section-head h2,.about h2{font-size:28px}.cards.three{grid-template-columns:1fr}.about{margin:0 20px 70px;padding:30px 23px}.about-stats b{font-size:27px}footer{grid-template-columns:1fr;padding:40px 20px}footer div:nth-child(2){justify-content:flex-start}footer>p{grid-column:1}.parent-head{padding:0 16px}.parent-shell{padding:24px 16px 90px}.welcome{align-items:flex-start;gap:14px}.welcome h1{font-size:23px}.child-switch{font-size:12px}.parent-stats{gap:9px}.parent-stats article{padding:15px 12px}.parent-stats b{font-size:24px}.next-class{padding:22px}.date-badge{width:66px;height:66px}.timeline article{grid-template-columns:75px 1fr}.timeline article>span{display:none}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:66px;background:#fff;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);z-index:10}.bottom-nav a{display:grid;place-items:center;font-size:13px;color:var(--muted)}.bottom-nav a.active{color:var(--blue);font-weight:800}}
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