:root,[data-theme=tricolor]{--bg: #FFFFFF;--bg-soft: #F8FAFC;--bg-card: #FFFFFF;--text: #111827;--muted: #6B7280;--border: #E5E7EB;--brand: #4F46E5;--sci: #4F46E5;--learn: #059669;--fun: #EA580C;--hero-a: #EEF2FF;--hero-b: #F0FDF4;--hero-c: #FFF7ED}[data-theme=mono]{--bg: #F9FAFB;--bg-soft: #F3F4F6;--bg-card: #FFFFFF;--text: #111827;--muted: #6B7280;--border: #E5E7EB;--brand: #4F46E5;--sci: #4F46E5;--learn: #4F46E5;--fun: #4F46E5;--hero-a: #EEF2FF;--hero-b: #EEF2FF;--hero-c: #EEF2FF}[data-theme=vibrant]{--bg: #FFFFFF;--bg-soft: #FDF4FF;--bg-card: #FFFFFF;--text: #111827;--muted: #6B7280;--border: #E9D5FF;--brand: #7C3AED;--sci: #7C3AED;--learn: #0891B2;--fun: #DB2777;--hero-a: #7C3AED;--hero-b: #2563EB;--hero-c: #0891B2}html{scroll-behavior:smooth}body{background-color:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans TC,PingFang TC,sans-serif;transition:background-color .25s,color .25s}*,*:before,*:after{box-sizing:border-box}.t-brand{color:var(--brand)}.t-sci{color:var(--sci)}.t-learn{color:var(--learn)}.t-fun{color:var(--fun)}.t-muted{color:var(--muted)}.bg-page{background-color:var(--bg)}.bg-soft{background-color:var(--bg-soft)}.bg-card{background-color:var(--bg-card)}.bd{border-color:var(--border)}.pill-sci{background:color-mix(in srgb,var(--sci) 12%,white);color:var(--sci)}.pill-learn{background:color-mix(in srgb,var(--learn) 12%,white);color:var(--learn)}.pill-fun{background:color-mix(in srgb,var(--fun) 12%,white);color:var(--fun)}.pill-brand{background:color-mix(in srgb,var(--brand) 10%,white);color:var(--brand)}.hero-bg{background:linear-gradient(135deg,var(--hero-a) 0%,var(--hero-b) 50%,var(--hero-c) 100%)}[data-theme=vibrant] .hero-bg{background:linear-gradient(140deg,var(--hero-a) 0%,var(--hero-b) 55%,var(--hero-c) 100%)}[data-theme=vibrant] .hero-h1,[data-theme=vibrant] .hero-sub,[data-theme=vibrant] .hero-badge{color:#fff}[data-theme=vibrant] .hero-badge{border-color:#ffffff59;background:#ffffff1f}[data-theme=vibrant] .hero-outline{color:#fff;border-color:#fff9}.card{background-color:var(--bg-card);border:1px solid var(--border);border-radius:1rem;transition:box-shadow .2s,transform .2s}.card:hover{box-shadow:0 10px 40px #00000012;transform:translateY(-3px)}.swatch{width:20px;height:20px;border-radius:50%;border:2.5px solid transparent;cursor:pointer;transition:border-color .2s,transform .15s}.swatch:hover{transform:scale(1.2)}.swatch.on{border-color:var(--text);transform:scale(1.15)}.manifesto{background:color-mix(in srgb,var(--brand) 5%,var(--bg-soft));border-left:4px solid var(--brand)}.pillar-sci{border-top:4px solid var(--sci)}.pillar-learn{border-top:4px solid var(--learn)}.pillar-fun{border-top:4px solid var(--fun)}.tl-dot{position:absolute;left:-29px;top:5px;width:12px;height:12px;border-radius:50%;border:3px solid var(--bg-soft)}.chip-on{background:#dcfce7;color:#15803d}.chip-live{background:#dbeafe;color:#1d4ed8}.chip-arc{background:#f3f4f6;color:#6b7280}.hover-sci{transition:color .15s}.hover-sci:hover{color:var(--sci)}.hover-learn{transition:color .15s}.hover-learn:hover{color:var(--learn)}.hover-fun{transition:color .15s}.hover-fun:hover{color:var(--fun)}.prose{color:var(--text);max-width:65ch}.prose h2{font-size:1.5rem;font-weight:800;margin:2.5rem 0 1rem;color:var(--text)}.prose h3{font-size:1.25rem;font-weight:700;margin:2rem 0 .75rem;color:var(--text)}.prose p{line-height:1.75;margin-bottom:1.25rem;color:var(--muted)}.prose a{color:var(--sci);text-decoration:underline}.prose ul,.prose ol{margin-bottom:1.25rem;padding-left:1.5rem;color:var(--muted)}.prose li{line-height:1.75;margin-bottom:.4rem}.prose pre{background:#1e293b;color:#e2e8f0;border-radius:.75rem;padding:1.25rem 1.5rem;overflow-x:auto;margin-bottom:1.5rem;font-size:.85rem;line-height:1.7}.prose code:not(pre code){font-size:.85em;background:var(--bg-soft);padding:.15em .4em;border-radius:.3em}.prose hr{border-color:var(--border);margin:2rem 0}.prose strong{color:var(--text);font-weight:700}.prose blockquote{border-left:4px solid var(--brand);padding-left:1rem;margin:1.5rem 0;color:var(--muted);font-style:italic}