:root{color-scheme:light;--background: #FFFFFF;--foreground: #181818;--muted: #F5F5F5;--muted-foreground: #666666;--border: #E5E5E5;--surface: rgba(255, 255, 255, .72);--surface-soft: rgba(255, 255, 255, .56);--surface-solid: #FFFFFF;--header-bg: rgba(255, 255, 255, .92);--footer-bg: rgba(245, 245, 245, .82);--subtle-border: rgba(229, 229, 229, .86);--cta-bg: linear-gradient(135deg, #F5F5F5, #FAFAFA);--brand: #F3733F;--brand-dark: #DF5D2C;--brand-ink: #B7431C;--brand-soft: #FFE5D4;--mint: #b9ded7;--lilac: #d7c8ff;--yellow: #ffd985;--shadow: 0 24px 80px rgba(0, 0, 0, .08);--text-xs: .75rem;--text-sm: .875rem;--text-base: .9375rem;--text-lg: clamp(.9375rem, .7125rem + .6vw, 1.1875rem);--text-xl: clamp(1.3125rem, .9125rem + 1.6vw, 2.0625rem);--text-2xl: clamp(1.4125rem, .8125rem + 2.6vw, 2.8125rem);--text-3xl: clamp(1.8125rem, 1.0125rem + 3.6vw, 3.8125rem);--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 40px;--space-8: 48px;--space-9: 64px;--space-10: 80px;--space-11: 96px;--space-12: 128px;--section-y: clamp(64px, 8vw, 128px);--font-sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;--font-sans-jp: "Pretendard JP Variable", "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif}[data-theme=dark]{color-scheme:dark;--background: #121212;--foreground: #EDEDED;--muted: #1E1E1E;--muted-foreground: #B3B3B3;--border: #333333;--surface: rgba(30, 30, 30, .92);--surface-soft: rgba(30, 30, 30, .74);--surface-solid: #1E1E1E;--header-bg: rgba(18, 18, 18, .92);--footer-bg: rgba(30, 30, 30, .82);--subtle-border: rgba(51, 51, 51, .86);--cta-bg: linear-gradient(135deg, #1E1E1E, #242424);--brand: #FF8A52;--brand-dark: #FF9B68;--brand-ink: #FF9B68;--brand-soft: rgba(255, 138, 82, .17);--shadow: 0 24px 80px rgba(0, 0, 0, .36)}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--background);-webkit-text-size-adjust:100%}body{margin:0;min-height:100vh;color:var(--foreground);background:var(--background);font-family:var(--font-sans);line-height:1.5;text-rendering:optimizeLegibility}html[lang=ja] body{font-family:var(--font-sans-jp)}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.container{width:min(1120px,100% - 48px);margin:0 auto}.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--subtle-border);background:var(--header-bg);backdrop-filter:blur(18px)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:66px}.brand-link,.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em}.app-icon{width:34px;height:34px;border-radius:11px;box-shadow:0 10px 22px #f1663538;object-fit:cover}.app-icon-small{width:38px;height:38px}.header-nav{display:flex;align-items:center;gap:24px;color:var(--muted-foreground);font-size:var(--text-sm);font-weight:600}.header-actions{display:flex;align-items:center;gap:18px;min-width:0}.header-nav a:hover{color:var(--brand-ink)}.language-switcher{position:relative;flex:0 0 auto}.language-switcher:after{position:absolute;top:50%;right:13px;width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;color:var(--muted-foreground);content:"";pointer-events:none;transform:translateY(-65%) 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img{width:100%;height:auto;border-radius:27px}.feature-section{background:var(--surface-soft)}.feature-layout{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1fr);gap:54px;align-items:start}.feature-grid{display:grid;gap:18px}.feature-card{border:1px solid var(--border);border-radius:28px;padding:28px;background:var(--surface);box-shadow:0 14px 46px #7636190f}[data-theme=dark] .feature-card,[data-theme=dark] .legal-article{box-shadow:0 18px 54px #0000003d}.feature-icon{width:28px;height:28px;margin-bottom:var(--space-4);color:var(--brand-ink)}.feature-card span{display:block;margin-top:var(--space-3);color:var(--muted-foreground);font-size:var(--text-sm)}.preview-layout{display:grid;gap:52px}.preview-layout .section-heading{margin:0 auto;text-align:center}.preview-rail{display:flex;gap:var(--space-5);overflow-x:auto;padding-bottom:var(--space-4);-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity;scrollbar-width:thin;scrollbar-color:var(--border) 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