:root{--color-ink:#1a1d23;--color-ink-soft:#565d6b;--color-ink-faint:#8b91a0;--color-bg:#f7f5f0;--color-surface:#fff;--color-surface-sunken:#f1ece1;--color-border:#e3ded2;--color-border-strong:#d9d0ba;--color-accent:#b3491f;--color-accent-ink:#fff;--color-accent-tint:#b3491f1a;--color-success-bg:#eaf3ec;--color-success-ink:#2f6f4f;--color-warning-bg:#fbf0e0;--color-warning-ink:#7a4a0a;--color-danger-bg:#fbe8e6;--color-danger-ink:#9a3222;--color-focus:#b3491f;--font-body:-apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-display:Georgia, "Times New Roman", ui-serif, serif;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4.5rem;--radius:10px;--radius-sm:6px;--max-width:84rem;--prose-width:42rem;--sidebar-width:17rem;--rail-width:18rem;--shadow-sm:0 1px 2px #1a1d230f;--shadow-md:0 6px 20px #1a1d2314}@media 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.result-row:last-child{padding-top:var(--space-4);border-bottom:none}.result-panel .result-row>span:first-child{color:#fff9;letter-spacing:.01em;font-size:.82rem}.result-panel .result-value{font-family:var(--font-display);font-variant-numeric:tabular-nums;letter-spacing:-.01em;font-size:1.4rem;font-weight:600}.result-panel .result-value--primary{color:#f2c9b4;font-size:1.9rem}.faq-item{border-bottom:1px solid var(--color-border);padding-block:var(--space-5)}.faq-item:first-child{border-top:1px solid var(--color-border)}.faq-item dt{color:var(--color-ink);margin-bottom:var(--space-2);font-weight:600}.faq-item dd{color:var(--color-ink-soft);margin:0;line-height:1.65}.breadcrumb{color:var(--color-ink-faint);margin-bottom:var(--space-3);font-size:.82rem}.breadcrumb a{color:var(--color-ink-faint)}.site-header{border-bottom:1px solid var(--color-border);background:var(--color-surface);z-index:20;position:relative;box-shadow:0 1px 3px 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a,.sidebar-home{border-radius:var(--radius-sm);color:var(--color-ink-soft);padding:.45rem .6rem;font-size:.92rem;text-decoration:none;transition:background-color .12s,color .12s;display:block}.sidebar-home{color:var(--color-ink);margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:1px solid var(--color-border-strong);border-radius:0;font-weight:600}.sidebar-nav a:hover{color:var(--color-ink);background:#1a1d230d}.sidebar-nav a.is-active,.sidebar-home.is-active{background:var(--color-accent-tint);color:var(--color-accent);box-shadow:inset 3px 0 0 var(--color-accent);padding-left:calc(.6rem + 3px);font-weight:600}.sidebar-group{margin-bottom:var(--space-5)}.sidebar-group+.sidebar-group{border-top:1px solid var(--color-border);padding-top:var(--space-4)}.sidebar-group-title{letter-spacing:.06em;text-transform:uppercase;color:var(--color-ink-soft);margin:0 0 var(--space-3) .6rem;font-size:.72rem;font-weight:700}.sidebar-group ul{margin:0;padding:0;list-style:none}.sidebar-soon{justify-content:space-between;align-items:center;gap:var(--space-2);color:var(--color-ink-faint);padding:.45rem .6rem;font-size:.92rem;display:flex}.sidebar-soon em{text-transform:uppercase;letter-spacing:.04em;white-space:nowrap;background:var(--color-border);color:var(--color-ink-soft);border-radius:999px;padding:.15rem .45rem;font-size:.62rem;font-style:normal;font-weight:600}.rail{display:none}@media (width>=80rem){.rail{background:var(--color-surface-sunken);border-left:1px solid var(--color-border-strong);height:100vh;display:block;position:sticky;top:0;overflow-y:auto}}.rail-inner{padding:var(--space-6) var(--space-5)}.rail-tip{margin-top:var(--space-5);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);box-shadow:var(--shadow-sm)}.rail-tip-title{font-family:var(--font-display);margin:0 0 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