:root{--color-primary: #207bb4;--color-primary-dark: #155f8d;--color-primary-soft: #eaf6fc;--color-accent: #16a085;--color-text: #1f2933;--color-muted: #64748b;--color-border: #e4edf4;--color-surface: #ffffff;--color-bg: #f7fbfd;--shadow-card: 0 20px 50px rgba(19, 74, 112, .1);--shadow-soft: 0 10px 30px rgba(19, 74, 112, .08);--content-width: 1080px;--narrow-width: 760px;font-family:-apple-system,BlinkMacSystemFont,Helvetica Neue,Yu Gothic,YuGothic,Meiryo,sans-serif}*{box-sizing:border-box}body{margin:0;color:var(--color-text);background:radial-gradient(circle at top left,rgba(32,123,180,.08),transparent 34rem),linear-gradient(180deg,#fff 0,var(--color-bg) 42rem,#fff 100%);font-size:16px;line-height:1.9;letter-spacing:.02em;overflow-wrap:anywhere}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-dark);text-decoration:underline}img{max-width:100%;height:auto;vertical-align:middle}.skip-link{position:absolute;left:-999px;top:8px;z-index:10;padding:8px 12px;background:#fff}.skip-link:focus{left:8px}.site-header{position:sticky;top:0;z-index:5;border-bottom:1px solid rgba(228,237,244,.85);background:#ffffffeb;backdrop-filter:blur(14px)}.header-inner{width:min(var(--content-width),calc(100% - 32px));margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:78px}.brand{display:flex;align-items:center;gap:12px;color:var(--color-text);min-width:260px;line-height:1.25}.brand:hover{text-decoration:none}.brand span{display:grid;gap:2px}.brand strong{font-size:15px;font-weight:700;letter-spacing:.04em;white-space:nowrap}.brand small{color:var(--color-muted);font-size:12px;font-weight:500;letter-spacing:.05em}.global-nav{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap;font-size:13px;font-weight:700}.global-nav a{display:block;padding:8px 12px;border-radius:999px;color:#334155;line-height:1.4;white-space:nowrap}.global-nav a:hover,.global-nav a.active{background:var(--color-primary-soft);color:var(--color-primary-dark);text-decoration:none}.hero{padding:34px 16px 18px}.hero-inner{width:min(var(--content-width),100%);margin:0 auto;display:grid;gap:24px}.hero-banner{display:block;overflow:hidden;border:1px solid rgba(228,237,244,.9);border-radius:24px;background:#fff;box-shadow:var(--shadow-card)}.hero-banner img{display:block;width:100%}.page-hero{width:min(var(--content-width),calc(100% - 32px));margin:0 auto;text-align:center}.eyebrow{margin:0 0 8px;color:var(--color-accent);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.page-hero h1{margin:0 auto;max-width:900px;color:#102a43;font-size:clamp(1.8rem,4vw,3.25rem);font-weight:800;line-height:1.35;letter-spacing:.01em;text-wrap:balance}.page-hero{padding:48px 0 10px}.site-main{width:min(var(--content-width),calc(100% - 32px));margin:0 auto;padding:36px 0 72px}.page-content>*:first-child{margin-top:0}.page-content>p:empty{display:none}.is-subpage .page-content>.section-heading:first-child{display:none}h1,h2,h3{line-height:1.45;font-weight:800;color:#102a43;letter-spacing:.01em;word-break:keep-all;overflow-wrap:anywhere}h1{font-size:clamp(2rem,4vw,3rem)}.section-heading,.page-content>h2{position:relative;margin:3rem auto 1.8rem;padding-bottom:.8rem;border-bottom:0;font-size:clamp(1.65rem,3vw,2.35rem);text-align:center;text-wrap:balance}.section-heading:after,.page-content>h2:after{content:"";position:absolute;left:50%;bottom:0;width:64px;height:4px;border-radius:999px;background:linear-gradient(90deg,var(--color-primary),var(--color-accent));transform:translate(-50%)}.section-heading:is(h3){margin:2.4rem 0 .75rem;font-size:1.35rem;text-wrap:balance}.text-center{text-align:center}.page-content p{margin:.9rem auto;max-width:var(--narrow-width)}.content-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin:28px auto 42px}.content-grid:has(>.content-column:only-child){max-width:var(--narrow-width);grid-template-columns:1fr}.content-column{min-width:0}.poster-image{margin:0}.content-column:has(.course-card-image){display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;border:1px solid rgba(228,237,244,.95);border-radius:22px;background:var(--color-surface);box-shadow:var(--shadow-soft);transition:transform .18s ease,box-shadow .18s ease}.content-column:has(.course-card-image):hover{transform:translateY(-3px);box-shadow:var(--shadow-card)}.course-card-image{margin:0}.course-card-image img{width:100%;aspect-ratio:710 / 437;object-fit:cover;border:0;background:#fff}.content-column:has(.course-card-image) .button-row{margin:0;padding:18px 20px 22px}.poster-image.aligncenter,.aligncenter{text-align:center;margin-left:auto;margin-right:auto}.poster-image.aligncenter img{display:inline-block;max-width:min(544px,100%);border-radius:18px;box-shadow:var(--shadow-soft)}.text-underline{text-decoration:underline}.button-row{display:flex;justify-content:center;margin:24px 0 30px}.button-link{display:inline-block;min-width:150px;padding:11px 28px;border-radius:999px;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;line-height:1.6;text-align:center;font-weight:800;box-shadow:0 10px 24px #207bb438;transition:transform .18s ease,box-shadow .18s ease}.button-link:hover{transform:translateY(-1px);color:#fff;text-decoration:none;box-shadow:0 14px 30px #207bb447}.notice-list{margin:0 auto 1.5rem;padding:4px 0;max-width:900px;list-style:none}.notice-list+.notice-list{margin-top:-1.5rem}.notice-list li{position:relative;margin:12px 0;padding:16px 18px 16px 48px;border:1px solid var(--color-border);border-radius:16px;background:#ffffffd6;box-shadow:0 8px 22px #134a700d}.notice-list li:before{content:"";position:absolute;left:20px;top:1.65em;width:10px;height:10px;border-radius:999px;background:var(--color-accent)}iframe{max-width:100%;border:0}.site-footer{border-top:1px solid var(--color-border);padding:30px 16px;background:#fff;color:var(--color-muted);text-align:center;font-size:13px}@media(max-width:900px){.header-inner{display:block;padding:13px 0 12px}.brand{min-width:0}.global-nav{justify-content:flex-start;margin-top:12px;border-top:1px solid var(--color-border);padding-top:10px}.global-nav a{padding:8px 10px}}@media(max-width:760px){.site-main{padding-top:30px}.content-grid{grid-template-columns:1fr;gap:22px;margin-bottom:36px}.hero{padding-top:22px}.hero-banner{border-radius:16px}.page-hero{padding-top:34px}}@media(max-width:520px){body{font-size:15px;line-height:1.85}.brand img{width:44px;height:44px}.brand strong{font-size:13px;white-space:normal}.brand small{font-size:11px}.global-nav{gap:6px;font-size:12px}.notice-list li{padding-left:38px}.notice-list li:before{left:16px}}