:root {
      --primary: #4f7cff; 
      --primary-dark: #3b5ccc;
      --primary-light: rgba(79, 124, 255, 0.1);
      --secondary: #ff3366;
      --red: #ef4444;
      --green: #10b981;
      --yellow: #f59e0b;
      --bg: #f8fafc; 
      --bg-panel: #ffffff;
      --text: #1e293b;
      --text-muted: #64748b;
      --border: #e2e8f0;
      --wrap: min(1120px, 92vw);
      --radius-lg: 32px;
      --radius-md: 20px;
      --radius-sm: 12px;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
      --shadow-lg: 0 20px 40px -10px rgba(79, 124, 255, 0.15);
      --bottom-bar-height: 72px;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body { background: var(--bg); color: var(--text); font-family: 'Noto Sans JP', 'Inter', sans-serif; line-height: 1.8; overflow-x: hidden; display: flex; flex-direction: column; min-height: 100vh; }
    @media (max-width: 900px) { body { padding-bottom: calc(var(--bottom-bar-height) + env(safe-area-inset-bottom, 20px)); } }
    
    a { color: inherit; text-decoration: none; transition: 0.3s; }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    ul, ol { list-style: none; }
    button { font-family: inherit; cursor: pointer; border: none; background: none; }

    /* Accessibility */
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border-width: 0; }
    :focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

    /* Layout Utilities */
    .wrap { width: var(--wrap); margin: 0 auto; position: relative; z-index: 2; }
    .section { padding: clamp(60px, 8vw, 100px) 0; }
    
    /* Shapes (Background Decoration) */
    .shape { position: absolute; border-radius: 50%; filter: blur(80px); z-index: 1; opacity: 0.5; pointer-events: none; }
    .shape1 { top: -10%; left: -10%; width: 50vw; height: 50vw; background: rgba(79, 124, 255, 0.3); }
    .shape2 { top: 40%; right: -20%; width: 40vw; height: 40vw; background: rgba(255, 51, 102, 0.15); }
    .shape3 { bottom: 10%; left: -10%; width: 30vw; height: 30vw; background: rgba(16, 185, 129, 0.2); }

    /* Header (Global) */
    .topbar { position: sticky; top: 0; z-index: 1000; background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); padding: 12px 0; }
    .topbar-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
    .brand-top { font-weight: 900; font-size: 16px; display: flex; align-items: center; gap: 8px; color: var(--text); }
    .brand-mark { width: 12px; height: 12px; background: linear-gradient(135deg, var(--primary), var(--secondary)); border-radius: 50%; box-shadow: 0 0 10px var(--primary-light); }
    .global-nav { display: flex; gap: 16px; font-size: 13px; font-weight: 700; align-items: center; }
    .global-nav a { color: var(--text-muted); padding: 8px 16px; border-radius: 999px; }
    .global-nav a:hover { background: var(--primary-light); color: var(--primary); }
    
    /* Mobile Drawer */
    .menu-toggle { display: none; width: 28px; height: 20px; position: relative; z-index: 10001; }
    .menu-toggle .bar { position: absolute; width: 100%; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; left: 0; }
    .menu-toggle .bar:nth-child(1) { top: 0; }
    .menu-toggle .bar:nth-child(2) { top: 9px; }
    .menu-toggle .bar:nth-child(3) { bottom: 0; }
    .menu-toggle.is-active .bar:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    .menu-toggle.is-active .bar:nth-child(2) { opacity: 0; }
    .menu-toggle.is-active .bar:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
    @media (max-width: 900px) { .global-nav { display: none; } .menu-toggle { display: block; } }

    .mobile-menu { position: fixed; top: 0; right: 0; width: 100%; height: 100vh; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(20px); z-index: 10000; transform: translateX(100%); transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1); padding: 80px 24px; overflow-y: auto; display: flex; flex-direction: column; visibility: hidden; opacity: 0; }
    .mobile-menu.is-open { transform: translateX(0); visibility: visible; opacity: 1; }
    .mobile-links { display: flex; flex-direction: column; gap: 20px; }
    .mobile-link { font-size: 18px; font-weight: 900; color: var(--text); border-bottom: 2px solid transparent; width: fit-content; }
    .mobile-link:hover { border-color: var(--primary); color: var(--primary); }

    /* Buttons */
    .btn { display: inline-flex; align-items: center; justify-content: center; padding: 16px 32px; border-radius: 999px; font-weight: 900; font-size: 15px; transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1); text-align: center; line-height: 1.2; box-shadow: var(--shadow-sm); }
    .btn.primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; box-shadow: 0 8px 20px rgba(79, 124, 255, 0.3); }
    .btn.primary:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 12px 25px rgba(79, 124, 255, 0.5); }
    .btn.secondary { background: #fff; color: var(--text); border: 2px solid var(--border); }
    .btn.secondary:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-3px); }

    /* Hero Section */
    .hero { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; padding: clamp(40px, 6vw, 80px) 0; }
    @media (max-width: 900px) { .hero { grid-template-columns: 1fr; text-align: center; } }
    .hero-copy .brand { display: inline-block; font-size: 12px; font-weight: 900; color: var(--primary); background: var(--primary-light); padding: 8px 16px; border-radius: 999px; margin-bottom: 24px; letter-spacing: 0.05em; }
    .hero h1 { font-size: clamp(28px, 4vw, 42px); font-weight: 900; line-height: 1.3; margin-bottom: 24px; letter-spacing: -0.02em; }
    .hero .lead { font-size: 16px; color: var(--text-muted); line-height: 1.8; margin-bottom: 32px; font-weight: 700; }
    .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
    @media (max-width: 900px) { .hero-actions { justify-content: center; } }
    .hero-media { position: relative; perspective: 1000px; }
    .hero-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); transform: rotateY(-5deg) rotateX(2deg); transition: 0.5s; object-fit: cover; aspect-ratio: 4/3; }
    .hero-media:hover img { transform: rotateY(0) rotateX(0); }
    .hero-overlay { position: absolute; bottom: -20px; left: -20px; background: rgba(255,255,255,0.9); backdrop-filter: blur(10px); padding: 20px; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); border: 1px solid var(--border); max-width: 320px; transform: translateZ(30px); }
    .hero-overlay strong { display: block; color: var(--primary); font-size: 14px; margin-bottom: 8px; }
    .hero-overlay span { display: block; font-size: 12px; color: var(--text-muted); font-weight: 700; line-height: 1.6; }
    @media (max-width: 900px) { .hero-overlay { display: none; } }

    /* CTA Bar */
    .cta-bar { background: linear-gradient(135deg, var(--bg-panel), #f1f5f9); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 32px; margin: 40px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 24px; box-shadow: var(--shadow-md); }
    .cta-bar strong { font-size: 18px; font-weight: 900; display: block; margin-bottom: 8px; }
    .cta-bar span { font-size: 13px; color: var(--text-muted); font-weight: 700; }
    @media (max-width: 768px) { .cta-bar { text-align: center; justify-content: center; } .cta-bar .btn { width: 100%; } }

    /* Countdown Widget */
    .deadline { background: var(--bg-panel); border: 2px solid var(--primary); border-radius: var(--radius-lg); padding: 40px; text-align: center; box-shadow: var(--shadow-lg); margin-bottom: 60px; position: relative; overflow: hidden; }
    .deadline::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 6px; background: linear-gradient(90deg, var(--primary), var(--secondary)); }
    .deadline .row .ttl { font-size: 14px; font-weight: 900; color: var(--primary); letter-spacing: 0.1em; }
    .deadline .date { font-size: clamp(24px, 4vw, 36px); font-weight: 900; margin: 16px 0; line-height: 1.3; }
    .deadline .count { font-size: clamp(20px, 3vw, 28px); font-weight: 900; background: var(--primary-light); display: inline-block; padding: 12px 32px; border-radius: 999px; color: var(--primary-dark); }

    /* Page Navigation */
    .nav { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 60px; }
    .nav a { background: var(--bg-panel); border: 1px solid var(--border); padding: 12px 24px; border-radius: 999px; font-size: 14px; color: var(--text-muted); font-weight: 700; box-shadow: var(--shadow-sm); }
    .nav a:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }

    /* Sections Shared */
    h2 { font-size: clamp(28px, 4vw, 36px); font-weight: 900; text-align: center; margin-bottom: 48px; letter-spacing: -0.02em; }
    .lead-box { background: var(--bg-panel); border: 1px solid var(--border); padding: 24px 32px; border-radius: var(--radius-md); font-size: 15px; font-weight: 700; color: var(--text-muted); line-height: 1.8; text-align: center; max-width: 800px; margin: 0 auto 48px; box-shadow: var(--shadow-sm); }
    
    .split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
    @media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
    
    .grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
    
    .card { background: var(--bg-panel); border: 1px solid var(--border); padding: 32px; border-radius: var(--radius-md); box-shadow: var(--shadow-md); transition: 0.3s; display: flex; flex-direction: column; }
    .card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
    .card strong { font-size: 18px; margin-bottom: 12px; display: block; }
    .card .note { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
    
    .media-card { position: relative; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-lg); }
    .media-card img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
    .media-card:hover img { transform: scale(1.03); }

    /* Callouts */
    .callout { padding: 32px; border-radius: var(--radius-md); margin-bottom: 24px; line-height: 1.8; }
    .callout.green { background: rgba(16, 185, 129, 0.05); border: 1px solid rgba(16, 185, 129, 0.2); }
    .callout.yellow { background: rgba(245, 158, 11, 0.05); border: 1px solid rgba(245, 158, 11, 0.2); }
    .callout strong { display: block; font-size: 18px; margin-bottom: 16px; }
    .callout .list { padding-left: 20px; font-size: 14px; color: var(--text-muted); font-weight: 700; list-style: disc; }
    .callout .list li { margin-bottom: 8px; }

    /* Flow (Timeline) */
    .flow { display: flex; flex-direction: column; gap: 24px; position: relative; max-width: 800px; margin: 0 auto; }
    .flow::before { content: ""; position: absolute; top: 0; bottom: 0; left: 24px; width: 2px; background: var(--border); z-index: 0; }
    @media (max-width: 600px) { .flow::before { left: 16px; } }
    
    .flow-item { display: flex; gap: 24px; position: relative; z-index: 1; }
    .step-tag { width: 50px; height: 50px; background: var(--primary); color: #fff; font-weight: 900; font-size: 11px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; box-shadow: 0 4px 10px rgba(79, 124, 255, 0.4); border: 4px solid var(--bg); }
    @media (max-width: 600px) { .step-tag { width: 36px; height: 36px; font-size: 9px; } }
    
    .flow-card { background: var(--bg-panel); border: 1px solid var(--border); padding: 32px; border-radius: var(--radius-md); box-shadow: var(--shadow-md); flex: 1; }
    .flow-card h3 { font-size: 20px; font-weight: 900; margin-bottom: 12px; color: var(--primary-dark); }
    .flow-card p { font-size: 14px; color: var(--text-muted); font-weight: 700; line-height: 1.6; margin-bottom: 16px; }

    /* Mini Grid (課題A/B) */
    .mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
    @media (max-width: 600px) { .mini-grid { grid-template-columns: 1fr; } }
    .mini { background: var(--bg); border: 1px solid var(--border); padding: 24px; border-radius: var(--radius-sm); position: relative; }
    .mini .label { position: absolute; top: -12px; left: 16px; font-size: 11px; font-weight: 900; color: #fff; padding: 4px 12px; border-radius: 999px; }
    .mini .label.a { background: var(--secondary); }
    .mini .label.b { background: var(--primary); }
    .mini h4 { font-size: 16px; font-weight: 900; margin-bottom: 8px; margin-top: 8px; }
    .mini .note { font-size: 12px; margin-bottom: 12px; }
    .mini .list { font-size: 12px; padding-left: 16px; list-style: disc; margin-bottom: 16px; color: var(--text-muted); }
    .mini .pill { display: inline-block; font-size: 11px; background: #fff; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--border); }

    /* Schedule Table */
    .table-wrap { overflow-x: auto; background: var(--bg-panel); border-radius: var(--radius-md); box-shadow: var(--shadow-md); border: 1px solid var(--border); }
    .schedule-table { width: 100%; border-collapse: collapse; min-width: 600px; text-align: left; }
    .schedule-table caption { padding: 16px; font-weight: 900; font-size: 18px; background: var(--bg); border-bottom: 1px solid var(--border); }
    .schedule-table th, .schedule-table td { padding: 16px 24px; border-bottom: 1px solid var(--border); font-size: 15px; }
    .schedule-table th { background: rgba(79, 124, 255, 0.05); font-weight: 900; color: var(--primary-dark); }
    .schedule-table tbody tr { transition: 0.3s; }
    .schedule-table tbody tr:hover { background: var(--bg); }
    .schedule-table tbody tr:last-child td { border-bottom: none; }
    
    /* 終了した日程のスタイル */
    .schedule-table tbody tr.is-ended { opacity: 0.5; background: #f8fafc; }
    .badge-end { display: inline-block; margin-left: 8px; background: var(--text-muted); color: #fff; font-size: 10px; font-weight: 900; padding: 2px 8px; border-radius: 4px; vertical-align: middle; }

    /* FAQ Details */
    details { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 16px; box-shadow: var(--shadow-sm); transition: 0.3s; overflow: hidden; }
    details:hover { border-color: var(--primary-light); }
    summary { padding: 24px; font-weight: 900; font-size: 16px; cursor: pointer; position: relative; list-style: none; outline: none; padding-right: 48px; }
    summary::-webkit-details-marker { display: none; }
    summary:focus-visible { background: var(--primary-light); }
    summary::after { content: "+"; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); font-size: 20px; font-weight: 400; color: var(--primary); transition: 0.3s; }
    details[open] summary::after { content: "−"; transform: translateY(-50%) rotate(180deg); }
    details p { padding: 0 24px 24px; font-size: 14px; color: var(--text-muted); font-weight: 700; line-height: 1.8; border-top: 1px dashed var(--border); padding-top: 16px; margin-top: -8px; }

    /* Contact & Footer */
    .icon { width: 48px; height: 48px; background: var(--primary-light); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--primary); transition: 0.3s; }
    .card:hover .icon { background: var(--primary); color: #fff; transform: scale(1.1); }
    .icon svg { width: 24px; height: 24px; }
    .line-icon { background: rgba(6, 199, 85, 0.1); color: #06c755; }
    .card:hover .line-icon { background: #06c755; color: #fff; }

    /* ★NEW: 洗練されたグローバルフッター */
    .site-footer { background: #0f172a; padding: 60px 0; color: var(--text-muted); font-size: 13px; margin-top: auto; border-top: 1px solid var(--border); position: relative; z-index: 2;}
    .footer-inner { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 40px; }
    @media (max-width: 768px) { .footer-inner { flex-direction: column; gap: 32px; text-align: center; align-items: center; } }
    
    .footer-brand { margin-bottom: 24px; }
    .footer-corp { font-size: 11px; font-weight: 700; display: block; margin-bottom: 4px; }
    .footer-school { font-size: 18px; font-weight: 900; color: #fff; display: block; margin-bottom: 12px; }
    .footer-address { line-height: 1.6; margin-bottom: 24px; }
    
    .footer-sns { display: flex; gap: 12px; }
    @media (max-width: 768px) { .footer-sns { justify-content: center; } }
    .footer-sns .sns-icon { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.05); color: #fff; transition: 0.3s; border: 1px solid rgba(255,255,255,0.1); }
    .footer-sns .sns-icon:hover { background: var(--primary); border-color: var(--primary); transform: translateY(-3px); }
    
    .footer-links { display: flex; flex-direction: column; gap: 16px; }
    @media (max-width: 768px) { .footer-links { align-items: center; } }
    .footer-links a { color: var(--text-muted); transition: 0.2s; font-weight: 700; display: flex; align-items: center; }
    .footer-links a::before { content: "›"; font-size: 12px; margin-right: 8px; color: var(--primary); font-weight: 900; }
    .footer-links a:hover { color: var(--primary); }
    
    .footer-copy { text-align: center; font-size: 11px; margin-top: 60px; border-top: 1px solid rgba(255,255,255,0.05); padding-top: 24px; width: 100%; }

    /* Sticky Bottom Bar */
    .fixed-cta { position: fixed; bottom: 0; left: 0; width: 100%; z-index: 999; padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px)); background: rgba(255,255,255, 0.95); backdrop-filter: blur(10px); border-top: 1px solid var(--border); display: flex; gap: 12px; box-shadow: 0 -10px 20px rgba(0,0,0,0.05); }
    .fixed-cta a { flex: 1; padding: 14px; border-radius: 12px; font-weight: 900; font-size: 14px; text-align: center; transition: 0.3s; }
    .fixed-cta .go { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; box-shadow: 0 4px 10px rgba(79, 124, 255, 0.3); }
    .fixed-cta .info { background: var(--bg); border: 1px solid var(--border); color: var(--text); }
    @media (min-width: 901px) { .fixed-cta { display: none; } }
    
    /* Scroll Reveal Class */
    .show { opacity: 1; transform: translateY(0); }