:root{--ink:#101f3e;--deep:#102a5c;--blue:#2855d9;--blue2:#5b82f8;--mint:#e1faef;--page:#f8f9ff;--muted:#64718d;--border:#e4e9f4;--white:#fff;color-scheme:light;font-family:Inter,"Segoe UI",system-ui,-apple-system,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;color:var(--ink);background:var(--page);font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,select{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #92acfb;outline-offset:4px}
.wrap{max-width:1250px;padding-inline:clamp(18px,3.5vw,48px);margin-inline:auto}
header{position:sticky;top:0;z-index:100;background:#fffefef5;backdrop-filter:blur(16px);border-bottom:1px solid #edf0f7}
header .nav-wrap{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap}.brand-icon{width:30px;height:30px;display:grid;place-items:center;background:#2a54d9;color:white;border-radius:10px;font-weight:900;font-size:17px}.brand-name{font-weight:850;font-size:15px;letter-spacing:-.025em}.brand-name small{display:block;font-size:8px;letter-spacing:.09em;font-weight:850;color:#7a87a8;text-transform:uppercase}
.nav-links{display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:2px}.nav-links a{padding:10px 11px;border-radius:10px;font-size:12px;font-weight:750;color:#475474;white-space:nowrap}.nav-links a:hover,.nav-links a.current{background:#edf2ff;color:#2855d9}.nav-links .lang{border:1px solid #e7ecf8;color:#2f54a0;background:#f6f8ff}
.nav-toggle{display:none;background:#eef3ff;border:0;border-radius:11px;padding:10px 14px;color:#1b4cba;font-weight:850}
.btn{display:inline-flex;justify-content:center;align-items:center;gap:10px;min-height:44px;border:1px solid transparent;border-radius:11px;padding:11px 18px;font-size:13px;font-weight:850;text-align:center;transition:transform .18s,background .18s,box-shadow .18s}
.btn:hover{transform:translateY(-2px)}.btn-primary{background:#2854d7;color:#fff;box-shadow:0 9px 22px #2c54c128}.btn-primary:hover{background:#1a43b7}.btn-soft{background:#edf2ff;color:#244ebc}.btn-line{border-color:#dfe6f6;background:#fff;color:#2a4ca0}.btn-quiet{color:#38529a}
.hero{padding:46px 0 54px;background:linear-gradient(155deg,#f9faff 0%,#f5f7ff 74%,#f4fafa 100%);border-bottom:1px solid #eff1f7}
.hero-main{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:clamp(30px,5vw,78px)}
.eyebrow{display:inline-flex;align-items:center;padding:7px 13px;border-radius:99px;background:#f0eeff;color:#7652cb;font-weight:850;font-size:10px;letter-spacing:.03em;margin-bottom:21px}
.hero h1{font-weight:900;font-size:clamp(3rem,5.1vw,4.9rem);line-height:1.06;letter-spacing:-.055em;margin:0 0 22px}.hero h1 span{color:#466ef2}
.hero .lead{max-width:585px;font-size:clamp(15px,1.2vw,17px);color:#687490;line-height:1.8;margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.perk-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}.perk{background:#fff;border:1px solid #eef0fb;padding:9px 13px;border-radius:12px;display:inline-flex;align-items:center;gap:9px;font-size:11px;font-weight:750;color:#4a6185}.perk b{font-size:15px;color:#466bec}
.preview{position:relative;max-width:470px;width:100%;margin:0 auto;border-radius:23px;background:#fff;box-shadow:0 20px 60px #5065b214;border:1px solid #e6ebfa;padding:20px;min-height:365px}
.preview-top{display:flex;align-items:center;justify-content:space-between;font-size:10px;font-weight:850;color:#334366;padding-bottom:14px}.preview-top span:last-child{color:#34927f}
.video-frame{height:231px;border-radius:17px;background:linear-gradient(140deg,#ecf1ff,#e8f0fe);position:relative;overflow:hidden;display:grid;place-items:center}
.video-frame:before{content:"";width:260px;height:260px;background:#f8faff;border-radius:50%;position:absolute;top:-50px}.video-frame img{height:225px;width:225px;object-fit:contain;z-index:1;position:relative}
.live-label{position:absolute;top:12px;left:12px;z-index:2;background:#ffffffdc;padding:5px 9px;border-radius:6px;color:#415baf;font-size:10px;font-weight:750}
.teacher-caption{position:absolute;bottom:12px;left:13px;right:13px;z-index:2;background:#fffffff0;border:1px solid #e5eafb;border-radius:9px;padding:9px 12px;display:flex;justify-content:space-between;gap:8px;align-items:center;font-size:10px;color:#526681}
.preview-foot{display:flex;gap:10px;align-items:center;font-size:10px;padding-top:14px}.preview-foot img{height:29px;width:29px;background:#dce7ff;border-radius:50%;object-fit:cover}.preview-foot strong{display:block;font-size:10px;color:#233f87}.preview-foot small{color:#8490ab}.sound-wave{margin-left:auto;color:#3865f3;letter-spacing:3px;font-size:17px}
.section{padding:clamp(58px,6vw,95px) 0}.section-kicker{font-size:10px;text-transform:uppercase;color:#4268d5;font-weight:900;letter-spacing:.11em;margin:0 0 8px}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:27px}.section h2{margin:0;color:#102445;letter-spacing:-.045em;line-height:1.14;font-size:clamp(25px,2.9vw,37px)}.intro{color:#728099;margin:9px 0 0;max-width:680px;font-size:13px;line-height:1.8}.quiet-link{font-size:12px;color:#4063d0;font-weight:800;white-space:nowrap}
.paths-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px}.path-card{padding:26px 21px 22px;border-radius:19px;background:white;border:1px solid #edf0fa;display:flex;flex-direction:column;min-height:255px;box-shadow:0 9px 29px #38437c08;transition:transform .18s,box-shadow .18s}
.path-card:hover{transform:translateY(-5px);box-shadow:0 18px 38px #39498316}.path-icon{display:grid;place-items:center;width:45px;height:45px;border-radius:12px;background:#e8f0ff;font-size:23px;margin-bottom:18px}.path-card:nth-child(2) .path-icon{background:#f0e9fc}.path-card:nth-child(3) .path-icon{background:#e0f7e9}.path-card:nth-child(4) .path-icon{background:#fff1e8}.path-tag{font-weight:900;letter-spacing:.08em;font-size:9px;text-transform:uppercase;color:#5470d2}.path-card:nth-child(2) .path-tag{color:#8057c6}.path-card:nth-child(3) .path-tag{color:#359878}.path-card:nth-child(4) .path-tag{color:#ba7853}.path-card h3{font-size:16px;line-height:1.3;margin:10px 0 7px}.path-card p{color:#70809b;font-size:11px;margin:0 0 17px;line-height:1.8;flex:1}.path-card a{display:block;text-align:center;background:#f4f7fd;border-radius:10px;padding:11px 8px;font-size:11px;font-weight:800;color:#305ac0}.path-card a:hover{background:#e7eeff}
.teacher-section{background:#fff;border-block:1px solid #eef1f9}.teacher-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:clamp(35px,6vw,105px);align-items:center}.teacher-portrait{position:relative;max-width:330px;margin-inline:auto;width:100%;aspect-ratio: .9;display:grid;place-items:end center;overflow:hidden;border-radius:25px;background:radial-gradient(circle at 40% 30%,#fff,#e9efff 58%,#e2f9f0 100%);box-shadow:0 14px 26px #344d9814;border:1px solid #e6ebfa}.teacher-portrait img{width:90%;height:95%;object-fit:contain;object-position:bottom}.teacher-ribbon{position:absolute;top:20px;right:18px;background:#2858d8;border-radius:9px;color:white;padding:6px 10px;font-size:10px;font-weight:850}.teacher-name{position:absolute;bottom:15px;left:20px;right:20px;background:#ffffffeb;box-shadow:0 5px 14px #12224d18;border-radius:9px;padding:11px;text-align:center;font-size:12px;font-weight:850}.teacher-name small{display:block;color:#4264cf;font-size:10px}
.teacher-copy p{font-size:13px;color:#687894;line-height:1.9;max-width:680px}.features{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:25px 34px;margin:26px 0 34px}.feature strong{display:block;font-size:14px;margin-bottom:4px;color:#233d8f}.feature span{display:block;color:#78849e;font-size:11px;line-height:1.7}.teacher-actions{display:flex;flex-wrap:wrap;gap:12px}
.notes-section{background:#f7f9fe}.notes-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.note{background:white;border:1px solid #edf0fa;padding:23px 20px 20px;border-radius:17px;display:flex;flex-direction:column;min-height:215px}.note .tag{align-self:flex-start;background:#e9f8f0;color:#278565;font-size:10px;font-weight:850;border-radius:99px;padding:4px 9px}.note:nth-child(2) .tag,.note:nth-child(5) .tag{background:#eef2ff;color:#4e6ac6}.note:nth-child(3) .tag,.note:nth-child(6) .tag{background:#f3edff;color:#7b59bb}.note h3{font-size:15px;line-height:1.45;margin:14px 0 7px}.note p{font-size:11px;color:#7a869c;line-height:1.75;margin:0 0 14px;flex:1}.note a{border-top:1px solid #eef1f6;padding-top:13px;color:#3a5fd6;font-size:11px;font-weight:850;display:flex;justify-content:space-between}
.app-strip{background:linear-gradient(115deg,#fff,#f0f5ff);border-block:1px solid #eff1f6}.app-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-block:50px}.app-inner h2{font-size:clamp(24px,2.5vw,34px);margin-bottom:12px}.app-inner p{margin:0;color:#758198;font-size:13px;max-width:650px}.app-badge{background:#ecf3ff;border:1px solid #dfe9ff;border-radius:15px;padding:17px 23px;color:#2c53bb;font-size:13px;font-weight:850;white-space:nowrap}
.tools-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.tool{border-radius:17px;background:white;border:1px solid #ecf0fa;padding:23px;display:flex;flex-direction:column}.tool .tool-head{font-size:25px}.tool h3{font-size:16px;margin:16px 0 6px}.tool p{font-size:12px;color:#7a8499;flex:1;margin:0 0 18px}.tool a{color:#395ecf;font-weight:850;font-size:12px}
.faq{max-width:850px;margin-inline:auto}.faq-head{text-align:center;margin-bottom:26px}.faq-head p{margin-top:7px}.faq details{background:#fff;border:1px solid #e9edf6;margin-bottom:12px;border-radius:13px;padding:0 19px}.faq summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:750;font-size:13px;display:flex;justify-content:space-between;gap:12px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"＋";color:#5577cf;font-size:19px;line-height:1}.faq details[open] summary:after{content:"−"}.faq details p{border-top:1px solid #edf0f5;padding:12px 0 19px;margin:0;color:#71809b;font-size:12px}
.cta{background:#eef2ff;text-align:center}.cta h2{max-width:700px;margin-inline:auto}.cta p{font-size:13px;color:#667593;margin:15px auto 25px;max-width:580px}.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
footer{background:#fff;border-top:1px solid #eef0f6;padding:43px 0 21px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:42px}.footer-about p{font-size:12px;color:#7a879d;line-height:1.8;max-width:340px}.footer-col h4{font-size:12px;color:#233456;margin:4px 0 12px}.footer-col a{display:block;color:#6d7c93;font-size:12px;margin:6px 0}.footer-col a:hover{color:#3159c6}.foot-bottom{margin-top:30px;padding-top:15px;border-top:1px solid #ecf0f5;color:#8b95a9;display:flex;justify-content:space-between;font-size:10px}
@media(max-width:1080px){.hero-main{grid-template-columns:1fr 1fr;gap:25px}.paths-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.nav-links a{padding:8px;font-size:11px}}
@media(max-width:810px){header .nav-wrap{min-height:65px}.nav-toggle{display:block}.nav-links{display:none;position:absolute;top:65px;left:0;right:0;background:white;flex-direction:column;align-items:stretch;border-bottom:1px solid #e3e9f6;padding:12px 22px 22px;box-shadow:0 12px 30px #182f6720}.nav-links.open{display:flex}.nav-links a{font-size:14px;padding:13px 12px}.hero-main{grid-template-columns:1fr}.hero{padding-top:38px}.preview{max-width:450px}.teacher-grid{grid-template-columns:1fr 1.3fr;gap:25px}.notes-grid,.tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.app-inner{align-items:flex-start;flex-direction:column}}
@media(max-width:580px){.hero h1{font-size:clamp(2.8rem,11vw,4rem)}.hero .lead{font-size:14px}.section{padding:58px 0}.section-head{flex-direction:column;align-items:flex-start}.paths-grid,.notes-grid,.tools-grid{grid-template-columns:1fr}.path-card{min-height:unset}.teacher-grid{grid-template-columns:1fr}.teacher-portrait{width:min(100%,285px)}.features{gap:20px 14px}.feature strong{font-size:12px}.app-inner{padding-block:34px}.footer-grid{grid-template-columns:1fr 1fr;gap:24px}.footer-about{grid-column:1/-1}.foot-bottom{flex-direction:column;gap:9px}.teacher-actions .btn{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:0s!important}}