:root{--color-bg: #f6f2ec;--color-bg-2: #fcfaf6;--color-text: #1c1b19;--color-text-soft: #2a2d2a;--color-muted: #6e6a63;--color-muted-2: #908a80;--color-border: #e3dcd2;--color-border-strong: #d6cdbe;--color-clay: #b0744f;--color-clay-soft: #c99577;--color-dark-bg: #1b1714;--color-dark-bg-2: #14110f;--color-dark-ink: #f6f2ec;--color-dark-muted: #8c857a;--color-dark-border: #2e2925;--font-serif: "Noto Serif JP", "A1 Mincho", "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;--font-sans: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic UI", "Yu Gothic", Meiryo, system-ui, sans-serif;--font-mono: "JetBrains Mono", "SF Mono", "Menlo", "Consolas", monospace;--step-display: clamp(34px, 4.8vw, 68px);--step-1: clamp(26px, 3.2vw, 44px);--step-2: clamp(22px, 2.6vw, 36px);--step-3: 20px;--step-body-lg: 16px;--step-body: 14.5px;--rail: 8.5vw;--rail-min: 32px;--container: 1320px;--section-y: clamp(96px, 12vw, 200px);--header-h: 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ease}.link:after{content:"→"}.link:hover{color:var(--color-clay);border-color:var(--color-clay);gap:16px}.link-quiet{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-sans);font-weight:500;font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--color-muted);transition:color .2s ease}.link-quiet:hover{color:var(--color-text)}.is-disabled{color:var(--color-muted-2);border-color:var(--color-border);pointer-events:none}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--color-clay);color:#fff;font-family:var(--font-sans);font-weight:500;font-size:12px;letter-spacing:.22em;text-transform:uppercase;padding:17px 36px;border:0;cursor:pointer;transition:background .25s ease,transform .25s 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