.fca-page{--fca-bg:#fafafa;--fca-surface:#fff;--fca-text:#171717;--fca-text-sub:#737373;--fca-text-mute:#95938e;--fca-border:#e5e5e5;--fca-accent:#2563eb;background:var(--fca-bg);color:var(--fca-text);min-height:100dvh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}[data-theme=dark] .fca-page{--fca-bg:#1a1918;--fca-surface:#232220;--fca-text:#eceae4;--fca-text-sub:#b0aea8;--fca-text-mute:#7e7c77;--fca-border:#36342f;--fca-accent:#60a5fa}.fca-header{border-bottom:1px solid var(--fca-border);background:color-mix(in srgb, var(--fca-bg) 88%, transparent);z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);justify-content:space-between;align-items:center;padding:1.25rem max(1.25rem,50vw - 440px) 1rem;display:flex;position:sticky;top:0}.fca-back{color:var(--fca-text-sub);align-items:center;gap:6px;font-size:.9rem;text-decoration:none;transition:color .15s;display:inline-flex}.fca-back:hover{color:var(--fca-text)}.fca-main{max-width:880px;margin:0 auto;padding:2rem 1.5rem 4rem}.fca-title{margin:0 0 1.25rem;font-size:1.6rem;font-weight:700;line-height:1.3}.fca-intro{color:var(--fca-text-sub);margin-bottom:2rem;font-size:1rem;line-height:1.7}.fca-section-title{border-bottom:1px solid var(--fca-border);margin:2rem 0 .6rem;padding-bottom:.4rem;font-size:1.15rem;font-weight:600}.fca-section-intro{color:var(--fca-text-sub);margin-bottom:1rem;font-size:.95rem;line-height:1.65}.fca-flow{flex-direction:column;gap:4px;margin:1rem 0 1.5rem;display:flex}.fca-step{background:var(--fca-surface);border:1px solid var(--fca-border);border-radius:8px;align-items:flex-start;gap:14px;padding:14px 16px;display:flex}.fca-step.is-highlight{border-color:color-mix(in srgb, var(--fca-accent) 40%, var(--fca-border));background:color-mix(in srgb, var(--fca-accent) 5%, var(--fca-surface))}.fca-step-num{background:var(--fca-accent);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:26px;height:26px;font-size:.8rem;font-weight:700;display:flex}.fca-step-title{margin-bottom:4px;font-size:.95rem;font-weight:600}.fca-step-body{color:var(--fca-text-sub);font-size:.88rem;line-height:1.55}.fca-arrow{color:var(--fca-text-mute);align-self:center;padding:2px 0;font-size:1.2rem}.fca-refs{flex-direction:column;gap:8px;margin:1rem 0;padding:0;list-style:none;display:flex}.fca-refs li{font-size:.93rem;line-height:1.5}.fca-refs a{color:var(--fca-accent);text-decoration:none}.fca-refs a:hover{text-decoration:underline}