:root{--color-bg: #0a0a12;--color-bg-soft: #13131f;--color-surface: rgba(255, 255, 255, .04);--color-surface-hover: rgba(255, 255, 255, .08);--color-border: rgba(255, 255, 255, .08);--color-border-strong: rgba(255, 255, 255, .16);--color-text: #f5f5fa;--color-text-soft: #c8c8de;--color-muted: #9a9ab4;--color-primary: #7c5cff;--color-primary-soft: rgba(124, 92, 255, .16);--color-secondary: #3b82f6;--color-accent: #ff6ad5;--color-danger: #ef4444;--font-sans: "Noto Sans JP", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;--font-display: "Inter", "Noto Sans JP", sans-serif;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-pill: 999px;--space-xs: 8px;--space-sm: 16px;--space-md: 24px;--space-lg: 40px;--space-xl: 64px;--space-2xl: 96px;--max-width: 960px;--max-width-narrow: 720px;--max-width-wide: 1200px;--shadow-glow-primary: 0 10px 30px -10px rgba(124, 92, 255, .6);--shadow-card: 0 4px 24px -8px rgba(0, 0, 0, .4);--transition-fast: .15s ease;--transition-base: .2s ease}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;width:100%;min-height:100%;background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);font-feature-settings:"palt";line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}img,picture,video,canvas,svg{display:block;max-width:100%}button{font:inherit;cursor:pointer}h1,h2,h3,h4,h5,h6,p{margin:0}ul,ol{margin:0;padding:0}ul,ol{list-style:none}.section{padding:var(--space-xl) var(--space-md);max-width:var(--max-width-wide);margin:0 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var(--space-md);height:60px}.header__brand[data-astro-cid-3ef6ksr2]{display:flex;align-items:baseline;gap:6px;flex-shrink:0}.header__brand-en[data-astro-cid-3ef6ksr2]{font-family:var(--font-display);font-weight:800;font-size:20px;letter-spacing:-.03em;background:linear-gradient(120deg,var(--color-primary),var(--color-accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.header__brand-ja[data-astro-cid-3ef6ksr2]{font-size:12px;color:var(--color-muted);letter-spacing:.1em}.header__nav[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:var(--space-sm);margin-left:auto}.header__link[data-astro-cid-3ef6ksr2]{padding:8px 14px;border-radius:var(--radius-pill);font-size:14px;font-weight:500;color:var(--color-text-soft);transition:color var(--transition-fast),background 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