:root{--color-canvas: #fbfbf9;--color-surface: #ffffff;--color-surface-muted: #f7f6f3;--color-text: #2f3437;--color-text-secondary: #787774;--color-text-inverse: #ffffff;--color-border: #eaeaea;--color-accent: #111111;--color-accent-hover: #333333;--color-pastel-blue-bg: #e1f3fe;--color-pastel-blue-text: #1f6c9f;--color-pastel-green-bg: #edf3ec;--color-pastel-green-text: #346538;--color-pastel-yellow-bg: #fbf3db;--color-pastel-yellow-text: #956400;--font-sans: "Geist Sans", "SF Pro Display", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-serif: "Instrument Serif", "Newsreader", "Noto Serif SC", "Songti SC", serif;--font-mono: "Geist Mono", "SF Mono", "JetBrains Mono", "Menlo", monospace;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-hover: 0 2px 8px rgba(0, 0, 0, .04);--ease-out: cubic-bezier(.16, 1, .3, 1);--max-width-content: 72rem;--max-width-prose: 42rem}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-sans);font-size:1rem;line-height:1.6;color:var(--color-text);background:var(--color-canvas);-webkit-font-smoothing:antialiased}h1,h2,h3{margin:0;font-weight:600;line-height:1.15;letter-spacing:-.02em}p{margin:0}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease-out),transform .6s var(--ease-out)}.reveal.is-visible{opacity:1;transform:translateY(0)}.ambient{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0;overflow:hidden}.ambient__blob{position:absolute;width:60vw;height:60vw;max-width:720px;max-height:720px;border-radius:50%;background:radial-gradient(circle,rgba(234,234,234,.5) 0%,transparent 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var(--color-border)}.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding-block:1.125rem}.brand{display:flex;flex-direction:column;gap:.125rem}.brand__name{font-size:.9375rem;font-weight:600;letter-spacing:.02em}.brand__en{font-family:var(--font-mono);font-size:.6875rem;color:var(--color-text-secondary);letter-spacing:.08em;text-transform:uppercase}.site-nav{display:flex;align-items:center;gap:1.75rem}.site-nav a{font-size:.875rem;color:var(--color-text-secondary);transition:color .2s ease}.site-nav a:hover{color:var(--color-text)}.hero{padding-block:clamp(4.5rem,10vw,7rem) clamp(3.5rem,8vw,5rem)}.hero__grid{display:grid;align-items:center;gap:clamp(2rem,4vw,3rem)}@media(min-width:900px){.hero__grid{grid-template-columns:1fr 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.625rem;border-radius:9999px;font-size:.6875rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase}.bento-card__tag--blue{background:var(--color-pastel-blue-bg);color:var(--color-pastel-blue-text)}.bento-card__tag--green{background:var(--color-pastel-green-bg);color:var(--color-pastel-green-text)}.bento-card__tag--yellow{background:var(--color-pastel-yellow-bg);color:var(--color-pastel-yellow-text)}.bento-card__title{font-size:1.375rem;margin-bottom:.75rem}.bento-card__text{color:var(--color-text-secondary);line-height:1.7}.bento-card__list{margin:1rem 0 0;padding:0;list-style:none;display:grid;gap:.5rem}.bento-card__list li{display:flex;align-items:flex-start;gap:.625rem;color:var(--color-text-secondary);font-size:.9375rem}.bento-card__list 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h1{font-family:var(--font-serif);font-size:clamp(2rem,4vw,2.75rem);font-weight:500;letter-spacing:-.03em;margin-bottom:1rem}.legal-meta{display:grid;gap:.375rem;font-size:.875rem;color:var(--color-text-secondary)}.prose section{margin-bottom:2.5rem}.prose h2{font-size:1.25rem;margin-bottom:1rem}.prose h3{font-size:1.0625rem;margin:1.5rem 0 .75rem}.prose p,.prose li{color:var(--color-text-secondary);line-height:1.75}.prose p+p{margin-top:.875rem}.prose ul,.prose ol{margin:.75rem 0 0;padding-left:1.25rem}.prose li+li{margin-top:.375rem}.prose table{width:100%;margin-top:1rem;border-collapse:collapse;font-size:.875rem}.prose th,.prose td{padding:.75rem 1rem;text-align:left;border:1px solid var(--color-border);vertical-align:top}.prose th{background:var(--color-surface-muted);color:var(--color-text);font-weight:600}.prose td{background:var(--color-surface)}.notice{margin:1.5rem 0;padding:1rem 1.25rem;background:var(--color-pastel-yellow-bg);border:1px solid 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