.platform-page{background:#f7fafc}.platform-header{background:rgba(255,255,255,.96)}.platform-hero{min-height:610px;padding:90px clamp(22px,8vw,130px);display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);align-items:center;gap:70px;color:#fff;background:linear-gradient(120deg,#002c49,#055487 62%,#0f8ed8);overflow:hidden}.platform-hero h1{max-width:790px;margin:15px 0 22px;font-size:clamp(44px,6vw,76px);line-height:1.3}.platform-hero h1 span{color:var(--yellow)}.platform-hero p{max-width:700px;margin:0 0 34px;color:#e6f5fd;font-size:20px}.platform-mark{height:360px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.18);border-radius:50%;background:rgba(255,255,255,.08);box-shadow:0 35px 80px rgba(0,25,42,.28)}.platform-mark img{width:min(82%,430px);filter:brightness(0) invert(1);opacity:.95}.platform-intro{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center;background:#fff}.platform-intro .section-heading{margin:0}.platform-intro>p{margin:0;color:var(--muted);font-size:19px}.catalog{background:#f7fafc}.course-card{display:grid;grid-template-columns:1fr auto;align-items:center;gap:40px;padding:42px;border:1px solid #d9e6ec;border-radius:20px;background:#fff;box-shadow:0 20px 55px rgba(0,59,96,.08)}.course-tag{color:var(--bright);font-size:14px;font-weight:800}.course-card h3{margin:8px 0 12px;color:var(--blue-dark);font-size:30px}.course-card p{max-width:720px;margin:0;color:var(--muted)}.course-meta{display:flex;gap:30px;margin-top:22px;color:#53646d}.course-meta b{color:var(--blue);font-size:21px}.course-link{padding:14px 24px;border-radius:9px;background:var(--blue);color:#fff;font-weight:800;white-space:nowrap}.course-link:hover{background:var(--bright);color:#fff}.platform-contact{margin-top:10px}.platform-page footer{margin-top:0}@media(max-width:900px){.platform-hero{grid-template-columns:1fr}.platform-mark{height:280px}.platform-intro{grid-template-columns:1fr;gap:20px}.course-card{grid-template-columns:1fr}.course-link{justify-self:start}}@media(max-width:600px){.platform-hero{min-height:auto;padding-block:70px}.platform-hero h1{font-size:42px}.platform-mark{height:210px}.course-card{padding:28px}.course-meta{flex-direction:column;gap:6px}}