.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-inner{position:relative;z-index:1;max-width:1240px;min-height:480px;padding:72px 32px 68px;margin:auto;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:60px}
.hero-title{max-width:none;margin-bottom:22px;font-size:clamp(22px,2.7vw,34px);line-height:1.3;white-space:normal}
.hero-text{max-width:480px;color:var(--muted);font-size:15px;line-height:1.75}
.hero-actions{display:flex;align-items:center;gap:24px;margin-top:32px}
.hero-tags{margin-top:20px;color:var(--muted);font-size:11px;letter-spacing:.02em}

.hero-visual{position:relative;min-height:360px;display:grid;place-items:center}
.hub-card-float{position:relative;z-index:2;width:190px;padding:25px 22px;background:var(--surface);border:1px solid var(--line);box-shadow:0 12px 28px -8px rgb(15 23 42 / .12)}
.hub-card-float strong{display:block;margin-top:22px;color:var(--ink);font-size:38px;letter-spacing:-.03em}
.hub-card-float>span{color:var(--muted);font-size:11px}
.hub-card-float small{display:block;margin-top:14px;color:var(--muted);font-size:9px}
.visual-note{position:absolute;right:14%;top:15%;color:var(--ink);font:10px/1.7 var(--font-mono)}
.visual-note span{color:var(--primary)}

.course-section{max-width:1240px;padding:86px 32px;margin:auto}
.section-heading{text-align:center;max-width:520px;margin:0 auto 48px}
.section-heading h2{margin-bottom:14px;font-size:40px}
.section-intro{color:var(--muted);font-size:13px;line-height:1.7}
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}

.course-card{display:flex;flex-direction:column;justify-content:space-between;gap:22px;padding:26px;background:var(--surface);border:1px solid var(--line);transition:.2s}
.course-card.is-active{border-color:var(--primary);box-shadow:0 8px 22px -10px rgb(37 99 235 / .25)}
.course-card.is-active:hover{transform:translateY(-2px)}
.course-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.course-category{color:var(--muted);font-size:10px;font-weight:700;letter-spacing:.08em}
.status-pill{padding:5px 10px;border-radius:99px;background:var(--tint);color:var(--primary-ink);font-size:9px;font-weight:700}
.status-pill.soon{background:var(--line);color:var(--muted)}
.course-card-body .course-code{display:block;margin-bottom:6px;color:var(--primary);font:800 26px var(--font-mono);letter-spacing:-.02em}
.course-card-body h3{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:2px}
.course-card-body .course-en{color:var(--muted);font-size:11px}
.course-card-bottom{display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:10px;font-weight:600}
.course-cta{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:6px;background:var(--primary);color:#fff;font-size:10px;font-weight:700}
.course-cta:hover{background:var(--primary-ink)}
.course-cta.is-disabled{background:var(--line);color:var(--muted)}
.course-card.is-soon{opacity:.7}
.course-card-placeholder{align-items:center;justify-content:center;border:1.5px dashed var(--line);background:none;box-shadow:none}
.course-card-placeholder .course-card-body{align-items:center;text-align:center}
.course-card-placeholder .icon{display:grid;place-items:center;width:38px;height:38px;margin:0 auto 10px;border-radius:50%;background:var(--tint);color:var(--muted)}
.course-card-placeholder .icon svg{width:18px;height:18px}
.course-card-placeholder h3{color:var(--muted);font-size:14px;font-weight:600}
.course-card-placeholder .course-en{color:var(--muted);opacity:.8}

.instructor-section{max-width:1240px;margin:0 auto;padding:0 32px 100px}
.instructor-card{position:relative;overflow:hidden;display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center;padding:44px;background:linear-gradient(135deg,var(--tint) 0%,var(--surface) 55%);border:1px solid var(--line)}
.instructor-card::before{content:'';position:absolute;top:-70px;right:-70px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgb(37 99 235 / .12),transparent 70%)}
.instructor-content{position:relative;z-index:1}
.instructor-avatar{position:relative;z-index:1;display:grid;place-items:center;width:56px;height:56px;margin-bottom:16px;border-radius:50%;background:var(--primary);color:#fff;box-shadow:0 12px 26px -8px rgb(37 99 235 / .4)}
.instructor-avatar svg{width:24px;height:24px}
.instructor-content h3{font-size:22px;margin-bottom:4px}
.instructor-role{margin-bottom:14px;color:var(--primary);font-size:11px;font-weight:700;letter-spacing:.06em}
.instructor-bio{max-width:52ch;color:var(--muted);font-size:13px;line-height:1.7}
.instructor-stats{display:flex;gap:32px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.instructor-stats strong{display:block;color:var(--ink);font-size:17px;font-weight:800}
.instructor-stats span{color:var(--muted);font-size:11px}

.instructor-visual{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;padding:20px}
.mini-roadmap{width:100%;max-width:320px}
.mini-roadmap-track{position:relative;display:flex;justify-content:space-between;margin-bottom:16px}
.mini-roadmap-track::before{content:'';position:absolute;top:50%;left:4px;right:4px;height:2px;background:var(--line);transform:translateY(-50%);z-index:0}
.mini-roadmap-node{position:relative;z-index:1;display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--surface);border:2px solid var(--primary);color:var(--primary-ink);font:800 12px var(--font-mono)}
.mini-roadmap-caption{display:block;text-align:center;color:var(--muted);font-size:11px;letter-spacing:.03em}

.info-section{max-width:1240px;margin:0 auto;padding:0 32px 100px}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.info-card{padding:32px 26px;background:var(--tint)}
.info-card .icon{font-size:26px;color:var(--primary)}
.info-card h3{margin:16px 0 8px;font-size:16px}
.info-card p{color:var(--muted);font-size:12px;line-height:1.7}

@media(max-width:760px){
  .hero-inner{grid-template-columns:1fr;gap:28px;padding:64px 20px 50px}
  .hero-visual{min-height:320px}
  .visual-grid{width:260px;height:260px}
  .orbit-one{width:330px}
  .orbit-two{width:300px}
  .course-section{padding:60px 20px}
  .course-grid,.info-grid{grid-template-columns:1fr}
  .info-section,.instructor-section{padding:0 20px 70px}
  .instructor-card{grid-template-columns:1fr;text-align:center;padding:32px 24px}
  .instructor-avatar{margin:0 auto 16px}
  .instructor-stats{justify-content:center}
  .instructor-visual{padding:8px 0 0}
  .mini-roadmap{max-width:280px;margin:0 auto}
}
</content>