*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.65 -apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:#2b2d42;background:#fafbff}
a{color:#4361ee;text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}.narrow{max-width:760px}
.top{background:rgba(255,255,255,.95);backdrop-filter:blur(6px);border-bottom:1px solid #e6e8f0;position:sticky;top:0;z-index:5}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.nav nav{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.nav nav a{color:#2b2d42;font-size:15px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:#2b2d42}
.btn{display:inline-block;background:#4361ee;color:#fff!important;padding:12px 22px;border-radius:10px;font-weight:600;border:0;cursor:pointer;font-size:16px;transition:background .15s}
.btn:hover{background:#3651d4;text-decoration:none}
.btn.small{padding:8px 14px;font-size:14px}
.btn.ghost{background:transparent;color:#4361ee!important;border:2px solid #4361ee}
.hero{padding:56px 0 24px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
h1{font-size:44px;line-height:1.15;margin:0 0 16px}.ptitle{margin-top:40px}
h2{font-size:28px;margin:44px 0 18px}
.lead{font-size:18px;color:#4a4e69;max-width:620px}
.actions{display:flex;gap:12px;margin:24px 0;flex-wrap:wrap}
.facts{list-style:none;padding:0;display:flex;gap:28px;color:#4a4e69;flex-wrap:wrap}
.facts b{display:block;font-size:20px;color:#2b2d42}
.art{width:100%;height:auto}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{display:block;background:#fff;border:1px solid #e6e8f0;border-radius:16px;padding:24px;color:inherit;margin:0}
a.card:hover{text-decoration:none;border-color:#c7cdf5;box-shadow:0 6px 24px rgba(67,97,238,.08)}
.card h3{margin:8px 0}
.course{border-top:4px solid var(--c)}
.tag{display:inline-block;background:#eef1ff;color:#4361ee;font-size:13px;font-weight:600;padding:3px 10px;border-radius:20px;margin:0}
.muted{color:#8d99ae}.small{font-size:14px}
.band{background:#fff;border-top:1px solid #e6e8f0;border-bottom:1px solid #e6e8f0;padding:8px 0 32px;margin-top:48px}
.steps{padding-left:20px}.steps li{margin:10px 0}
.people{display:flex;gap:28px;flex-wrap:wrap}.person{display:flex;flex-direction:column;align-items:center;text-align:center;width:150px;gap:6px}
.tgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.person-card{display:flex;gap:20px;align-items:flex-start}.ava{flex:none}
blockquote.card{font-style:normal}blockquote.card span{display:block;margin-top:10px}
.chead{background:#fff;border-bottom:1px solid #e6e8f0;border-top:4px solid var(--c);padding:28px 0 36px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.ticks{padding-left:0;list-style:none}.ticks li{padding-left:28px;position:relative;margin:8px 0}.ticks li:before{content:"✓";position:absolute;left:0;color:#2a9d8f;font-weight:700}
.modules{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.modules li{background:#fff;border:1px solid #e6e8f0;border-radius:12px;padding:16px 18px}.modules li span{display:block;color:#4a4e69;font-size:15px;margin-top:4px}
.post{max-width:760px}.post h2{font-size:22px;margin:28px 0 8px}
.note{background:#eef1ff;border-radius:12px;padding:14px 18px;margin-top:32px}
details.card{margin:10px 0;padding:16px 20px}summary{cursor:pointer;font-weight:600}
.doc h2{font-size:20px;margin:24px 0 6px}
.footer{margin-top:64px;background:#fff;border-top:1px solid #e6e8f0;padding:32px 0 20px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px}.fgrid div{display:flex;flex-direction:column;gap:6px}.fgrid b{margin-bottom:4px}.fgrid a{color:#4a4e69;font-size:15px}
.copy{margin-top:20px}
.authwrap{display:flex;justify-content:center;padding:64px 20px}
.login{background:#fff;border:1px solid #e6e8f0;border-radius:16px;padding:36px;width:100%;max-width:420px}
.login h1{font-size:24px;margin:0 0 4px}
.login form{display:flex;flex-direction:column;gap:14px;margin:20px 0}
.login label{display:flex;flex-direction:column;font-size:14px;color:#4a4e69;gap:6px}
.login input{padding:12px;border:1px solid #d9dce6;border-radius:10px;font-size:16px}
.error{background:#ffe3ec;color:#b5174e;padding:10px 12px;border-radius:10px}
@media(max-width:860px){.hero-grid,.two,.tgrid,.modules{grid-template-columns:1fr}.cards{grid-template-columns:1fr}.fgrid{grid-template-columns:1fr 1fr}h1{font-size:32px}.nav nav a:not(.btn){display:none}}
.notice{display:block;margin-top:18px;background:#eef1ff;border:1px solid #d6ddff;color:#2b2d42;border-radius:12px;padding:12px 16px;font-size:15px}.notice:hover{text-decoration:none;border-color:#4361ee}
.card .cover{display:block;width:calc(100% + 48px);height:auto;margin:-24px -24px 16px;border-radius:15px 15px 0 0;aspect-ratio:16/9;object-fit:cover}
.course{border-top:0}.course .cover{border-bottom:4px solid var(--c)}
.ava{border-radius:50%;object-fit:cover;flex:none;background:#eef1ff}
.person .ava{width:96px;height:96px}.person-card .ava{width:120px;height:120px}
.art{border-radius:20px}
.chgrid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}.chimg{width:100%;height:auto;border-radius:16px}
.pimg{width:100%;height:auto;border-radius:16px;margin:12px 0 8px}
.authgrid{display:grid;grid-template-columns:1fr 420px;gap:36px;align-items:center;max-width:980px;width:100%}.authimg{width:100%;height:auto;border-radius:20px}
@media(max-width:860px){.chgrid,.authgrid{grid-template-columns:1fr}.authimg{display:none}}