:root{--color-bg: #ffffff;--color-text: #0f172a;--color-muted: #64748b;--color-border: #e2e8f0;--color-surface: #f8fafc;--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-primary-light: #60a5fa;--color-primary-bg: #eff6ff;--color-accent: #0ea5e9;--color-accent-light: #7dd3fc;--color-success: #22c55e;--color-warning: #f59e0b;--color-code-bg: #f1f5f9;--font-mono: ui-monospace, "SF Mono", "Menlo", "Consolas", monospace;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 2.5rem;--font-size-5xl: 3rem;--font-size-6xl: 4rem;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem;--spacing-4xl: 6rem;--spacing-5xl: 8rem;--max-width: 720px;--wide-width: 1200px;--radius-sm: 6px;--radius: 10px;--radius-lg: 16px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow: 0 4px 6px -1px rgba(15, 23, 42, .08), 0 2px 4px -2px rgba(15, 23, 42, .06);--shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, .08), 0 4px 6px -4px rgba(15, 23, 42, .06);--shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, .1), 0 8px 10px -6px rgba(15, 23, 42, .06)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Yu Gothic,Noto Sans JP,Meiryo,-apple-system,BlinkMacSystemFont,sans-serif;font-size:var(--font-size-base);line-height:1.7;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;min-height:100vh}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;letter-spacing:-.01em;color:var(--color-text)}h1{font-size:var(--font-size-4xl)}h2{font-size:var(--font-size-3xl)}h3{font-size:var(--font-size-xl)}p{line-height:1.8}button{font-family:inherit;cursor:pointer}.container{max-width:var(--wide-width);margin:0 auto;padding:0 var(--spacing-lg)}.section{padding-block:var(--spacing-4xl)}.section-title{text-align:center;margin-bottom:var(--spacing-md)}.section-subtitle{text-align:center;color:var(--color-muted);font-size:var(--font-size-base);margin-bottom:var(--spacing-2xl)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:12px 24px;font-size:var(--font-size-base);font-weight:600;border-radius:var(--radius);cursor:pointer;border:none;text-decoration:none;transition:background var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast)}.btn:hover{transform:translateY(-1px)}.btn-primary{color:#fff;background:var(--color-primary)}.btn-primary:hover{background:var(--color-primary-dark);box-shadow:var(--shadow-lg)}.btn-secondary{color:var(--color-primary);background:var(--color-primary-bg);border:1px solid var(--color-primary-light)}.btn-secondary:hover{background:#dbeafe}.btn-ghost{color:var(--color-text);background:transparent;border:1px solid var(--color-border)}.btn-ghost:hover{background:var(--color-surface)}.btn-lg{padding:14px 32px;font-size:var(--font-size-lg)}@media(max-width:768px){h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}}.site-header[data-astro-cid-5hce7sga]{position:sticky;top:0;z-index:100;background:#ffffffeb;backdrop-filter:saturate(180%) blur(8px);-webkit-backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--color-border)}.nav[data-astro-cid-5hce7sga]{display:flex;flex-wrap:nowrap;align-items:center;gap:var(--spacing-lg);padding-block:var(--spacing-md)}.site-logo[data-astro-cid-5hce7sga]{display:inline-flex;align-items:baseline;gap:4px;font-weight:800;letter-spacing:-.01em}.logo-mark[data-astro-cid-5hce7sga]{display:inline-block;padding:4px 10px;background:var(--color-primary);color:#fff;border-radius:6px;font-size:var(--font-size-base);letter-spacing:.05em}.logo-name[data-astro-cid-5hce7sga]{font-size:var(--font-size-lg);color:var(--color-text)}.nav-links[data-astro-cid-5hce7sga]{display:flex;gap:var(--spacing-lg);margin-left:auto}.nav-links[data-astro-cid-5hce7sga] a[data-astro-cid-5hce7sga]{font-size:var(--font-size-sm);font-weight:500;color:var(--color-muted);transition:color var(--transition-fast)}.nav-links[data-astro-cid-5hce7sga] a[data-astro-cid-5hce7sga]:hover{color:var(--color-primary)}.nav-actions[data-astro-cid-5hce7sga]{display:flex;align-items:center}.nav-cta[data-astro-cid-5hce7sga]{padding:8px 16px;font-size:var(--font-size-sm);font-weight:600;color:#fff;background:var(--color-primary);border-radius:8px;transition:background var(--transition-fast),transform var(--transition-fast)}.nav-cta[data-astro-cid-5hce7sga]:hover{background:var(--color-primary-dark);transform:translateY(-1px)}main[data-astro-cid-5hce7sga]{min-height:calc(100vh - 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