.pg-group{--pg-text:#1c1917;--pg-text-2:#57534e;--pg-text-3:#a8a29e;--pg-accent:#4a5c3d;--pg-accent-bg:#f1f5ed;--pg-cool:#6b5444;--pg-cool-bg:#f5f0ec;--pg-border:#e7e5e4;--pg-bg:#fafaf7;--pg-surface:#fff;color:var(--pg-text);background:var(--pg-bg);max-width:720px;margin:0 auto;padding:3rem 1.5rem 4rem;font-family:Inter,-apple-system,system-ui,sans-serif;line-height:1.75}.pg-group *,.pg-group :before,.pg-group :after{box-sizing:border-box}.pg-header{margin-bottom:2.5rem}.pg-header-label{letter-spacing:.12em;text-transform:uppercase;color:var(--pg-accent);margin-bottom:.75rem;font-size:.75rem;font-weight:600}.pg-group h1{color:var(--pg-text);letter-spacing:-.02em;margin-bottom:.5rem;font-size:2.4rem;font-weight:700;line-height:1.15}.pg-subtitle{color:var(--pg-text-2);font-size:1.05rem;font-weight:400}.pg-nav{border-bottom:1px solid var(--pg-border);-webkit-overflow-scrolling:touch;gap:.25rem;margin-bottom:2.5rem;display:flex;overflow-x:auto}.pg-nav button{color:var(--pg-text-3);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;padding:.75rem 1rem;font-family:inherit;font-size:.875rem;font-weight:500;transition:color .15s,border-color .15s}.pg-nav button:hover{color:var(--pg-text-2)}.pg-nav button.active{color:var(--pg-accent);border-bottom-color:var(--pg-accent);font-weight:600}.pg-page-panel{display:none}.pg-page-panel.active{animation:.25s pgAppear;display:block}@keyframes pgAppear{0%{opacity:0}to{opacity:1}}.pg-group .section-label{letter-spacing:.1em;text-transform:uppercase;color:var(--pg-text-3);margin-bottom:.5rem;font-size:.7rem;font-weight:600}.pg-group .section-label.warm{color:var(--pg-accent)}.pg-group .section-label.cool{color:var(--pg-cool)}.pg-group h2{color:var(--pg-text);letter-spacing:-.01em;margin-bottom:.75rem;font-size:1.35rem;font-weight:700}.pg-group h3{color:var(--pg-text);margin-bottom:.5rem;font-size:1.05rem;font-weight:600}.pg-group .body-text{color:var(--pg-text-2);font-size:.95rem;line-height:1.8}.pg-group .body-text+.body-text{margin-top:.75rem}.pg-group .body-text strong{color:var(--pg-text);font-weight:600}.pg-group .body-text em{font-style:italic}.pg-group .timing{color:var(--pg-text-3);float:right;margin-top:.2rem;font-size:.75rem;font-weight:500}.pg-group .divider{border:none;border-top:1px solid var(--pg-border);margin:2.5rem 0}.pg-group .callout{border-left:3px solid var(--pg-border);margin:1.5rem 0;padding:1rem 1.25rem}.pg-group .callout.warm{border-left-color:var(--pg-accent);background:var(--pg-accent-bg)}.pg-group .callout.cool{border-left-color:var(--pg-cool);background:var(--pg-cool-bg)}.pg-group .callout .callout-label{letter-spacing:.1em;text-transform:uppercase;color:var(--pg-text-3);margin-bottom:.4rem;font-size:.7rem;font-weight:600}.pg-group .callout.warm .callout-label{color:var(--pg-accent)}.pg-group .callout.cool .callout-label{color:var(--pg-cool)}.pg-group .callout p{color:var(--pg-text-2);font-size:.9rem;line-height:1.7}.pg-group .callout p strong{color:var(--pg-text)}.pg-group .accordion{border:1px solid var(--pg-border);border-radius:8px;margin:1.5rem 0;overflow:hidden}.pg-group .acc-item{border-bottom:1px solid var(--pg-border)}.pg-group .acc-item:last-child{border-bottom:none}.pg-group .acc-header{cursor:pointer;background:var(--pg-surface);user-select:none;justify-content:space-between;align-items:center;padding:1rem 1.25rem;transition:background .15s;display:flex}.pg-group .acc-header:hover{background:var(--pg-bg)}.pg-group .acc-title{color:var(--pg-text);font-size:.95rem;font-weight:600}.pg-group .acc-icon{color:var(--pg-text-3);font-size:1.1rem;font-weight:300;line-height:1;transition:transform .2s}.pg-group .acc-item.open .acc-icon{transform:rotate(45deg)}.pg-group .acc-body{background:var(--pg-surface);padding:0 1.25rem 1.25rem;display:none}.pg-group .acc-item.open .acc-body{display:block}.pg-group .acc-body p{color:var(--pg-text-2);font-size:.9rem;line-height:1.75}.pg-group .acc-body p+p{margin-top:.75rem}.pg-group .questions{margin:1.5rem 0}.pg-group .question{border-bottom:1px solid var(--pg-border);padding:1rem 0}.pg-group .question:last-child{border-bottom:none}.pg-group .question-label{letter-spacing:.1em;text-transform:uppercase;color:var(--pg-text-3);margin-bottom:.3rem;font-size:.7rem;font-weight:600}.pg-group .question-text{color:var(--pg-text);font-size:.95rem;font-weight:500;line-height:1.7}.pg-group .question-note{color:var(--pg-text-3);margin-top:.3rem;font-size:.82rem;font-style:italic;line-height:1.65}.pg-group .letter-grid{grid-template-columns:1fr;gap:.75rem;margin:1.5rem 0;display:grid}.pg-group .letter-card{border:1px solid var(--pg-border);cursor:pointer;border-radius:8px;transition:border-color .15s;overflow:hidden}.pg-group .letter-card:hover,.pg-group .letter-card.active{border-color:var(--pg-accent)}.pg-group .letter-header{background:var(--pg-surface);align-items:center;gap:1rem;padding:1rem 1.25rem;display:flex}.pg-group .letter-char{color:var(--pg-accent);text-align:center;flex-shrink:0;width:2rem;font-size:1.4rem;font-weight:700}.pg-group .letter-name{color:var(--pg-text);font-size:.95rem;font-weight:600}.pg-group .letter-brief{color:var(--pg-text-3);margin-top:.1rem;font-size:.8rem}.pg-group .letter-detail{background:var(--pg-bg);border-top:1px solid var(--pg-border);padding:1.25rem;display:none}.pg-group .letter-card.active .letter-detail{display:block}.pg-group .letter-detail p{color:var(--pg-text-2);font-size:.9rem;line-height:1.75}.pg-group .letter-detail p+p{margin-top:.75rem}.pg-group .page-nav{border-top:1px solid var(--pg-border);justify-content:space-between;align-items:center;margin-top:3rem;padding-top:1.5rem;display:flex}.pg-group .page-nav button{color:var(--pg-accent);cursor:pointer;background:0 0;border:none;padding:.5rem 0;font-family:inherit;font-size:.9rem;font-weight:500;transition:opacity .15s}.pg-group .page-nav button:hover{opacity:.7}.pg-group .page-nav .ghost{visibility:hidden}.pg-footer{border-top:1px solid var(--pg-border);text-align:center;color:var(--pg-text-3);margin-top:3rem;padding-top:1.5rem;font-size:.8rem;line-height:1.8}.pg-footer strong{color:var(--pg-text-2);font-weight:600}@media (width<=600px){.pg-group{padding:2rem 1.25rem 3rem}.pg-group h1{font-size:1.8rem}}@media (prefers-reduced-motion:reduce){.pg-page-panel{animation:none!important}.pg-group .acc-icon{transition:none!important}}