.home{--home-fg:#18181b;--home-muted:#52525b;--home-faint:var(--site-text-secondary);--home-bg-card:#fff;--home-bg-soft:#fafafa;--home-border:#e4e4e7;--home-accent:var(--site-accent);--home-accent-soft:#eef2ff;color:var(--home-fg);max-width:78rem;margin:0 auto;padding:0 clamp(1.25rem,3vw,2.5rem) 4.5rem}.dark .home{--home-fg:#fafafa;--home-muted:#a1a1aa;--home-faint:var(--site-text-secondary);--home-bg-card:#18181b;--home-bg-soft:#111113;--home-border:#27272a;--home-accent-soft:#1e1b4b}.home section{margin-top:3.5rem}.home-section-kicker{letter-spacing:.08em;color:var(--home-accent);margin:0 0 .4rem;font-size:.8rem;font-weight:600}.home-section-title{margin:0 0 .5rem;font-size:1.6rem;font-weight:700;line-height:1.3}.home-section-lead{color:var(--home-muted);max-width:44rem;margin:0 0 1.25rem;line-height:1.8}.home .hero{grid-template-columns:minmax(0,1.45fr) minmax(14rem,.55fr);align-items:center;gap:clamp(2rem,4vw,4rem);margin-top:0;padding-top:2rem;display:grid}.hero-kicker{letter-spacing:.12em;color:var(--home-accent);margin:0 0 .65rem;font-size:.85rem;font-weight:600}.hero-title{letter-spacing:-.01em;margin:0 0 .9rem;font-size:clamp(1.9rem,4.5vw,2.9rem);font-weight:800;line-height:1.35}.hero-title em{background:linear-gradient(transparent 62%, var(--home-accent-soft) 62%);font-style:normal}.hero-lead{color:var(--home-muted);max-width:38rem;margin:0 0 1.35rem;line-height:1.9}.hero-actions{flex-wrap:wrap;gap:.8rem;display:flex}.btn{border-radius:.6rem;padding:.65rem 1.4rem;font-size:.95rem;font-weight:600;text-decoration:none;transition:transform .15s,box-shadow .15s;display:inline-block}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--home-accent);color:#fff}.dark .btn-primary{color:#18181b}.btn-ghost{border:1px solid var(--home-border);color:var(--home-fg);background:var(--home-bg-card)}.hero-visual{justify-content:center;display:flex}.loop-ring{border:2px dashed var(--home-border);border-radius:50%;width:12.5rem;height:12.5rem;position:relative}.loop-arc{border:2px solid #0000;border-top-color:var(--home-accent);border-radius:50%;animation:8s linear infinite loop-spin;position:absolute;inset:-2px}@keyframes loop-spin{to{transform:rotate(360deg)}}.loop-node{background:var(--home-bg-card);border:1px solid var(--home-border);border-radius:999px;padding:.35rem .9rem;font-size:.85rem;font-weight:600;position:absolute;box-shadow:0 1px 4px #0000000f}.loop-node-1{top:-.9rem;left:50%;transform:translate(-50%)}.loop-node-2{bottom:12%;right:-1.6rem}.loop-node-3{bottom:12%;left:-1.6rem}.loop-center{text-align:center;color:var(--home-muted);place-content:center;font-size:.95rem;font-weight:700;line-height:1.5;display:grid;position:absolute;inset:0}@media (prefers-reduced-motion:reduce){.loop-arc{animation:none}.btn,.concept-card,.section-card{transition:none}}.home #routes{margin-top:2.75rem;scroll-margin-top:7rem}.route-explorer{border:1px solid var(--home-border);background:var(--home-bg-card);border-radius:1rem;overflow:hidden}.route-tabs{border-bottom:1px solid var(--home-border);background:var(--home-bg-soft);flex-wrap:wrap;display:flex}.route-tab{appearance:none;color:var(--home-muted);cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;margin-bottom:-1px;padding:.75rem 1rem;font-size:.92rem;font-weight:600}.route-tab:hover{color:var(--home-fg)}.route-tab.is-active{color:var(--home-accent);border-bottom-color:var(--home-accent);background:var(--home-bg-card)}.route-tab-key{background:var(--home-accent-soft);width:1.4rem;height:1.4rem;color:var(--home-accent);border-radius:50%;place-content:center;margin-right:.5rem;font-size:.75rem;display:inline-grid}.route-panel{padding:1.35rem 1.5rem 1.5rem}.route-persona{color:var(--home-muted);margin:0 0 .85rem;font-size:.95rem}.route-steps{gap:.4rem;margin:0;padding:0;list-style:none;display:grid}.route-step{align-items:flex-start;gap:1rem;padding:.55rem 0;display:flex;position:relative}.route-step:not(:last-child):before{content:"";background:var(--home-border);width:2px;position:absolute;top:2.4rem;bottom:-.4rem;left:.85rem}.route-step-num{background:var(--home-accent-soft);width:1.75rem;height:1.75rem;color:var(--home-accent);z-index:1;border-radius:50%;flex:none;place-content:center;font-size:.8rem;font-weight:700;display:grid;position:relative}.route-step-body a{color:var(--home-fg);border-bottom:1px solid var(--home-border);font-weight:600;text-decoration:none}.route-step-body a:hover{color:var(--home-accent);border-bottom-color:var(--home-accent)}.route-step-body p{color:var(--home-muted);margin:.15rem 0 0;font-size:.88rem}.route-more{color:var(--home-muted);margin:1.4rem 0 0;font-size:.88rem}.route-more a{color:var(--home-accent);text-underline-offset:.18em;text-decoration:underline}.route-more a:focus-visible{outline-offset:3px;outline:2px solid}.concept-grid{grid-template-columns:repeat(auto-fill,minmax(15.5rem,1fr));gap:1rem;display:grid}.concept-card{border:1px solid var(--home-border);background:var(--home-bg-card);color:inherit;border-radius:.9rem;padding:1.2rem 1.3rem;text-decoration:none;transition:transform .15s,border-color .15s,box-shadow .15s;display:block}.concept-card:hover{border-color:var(--home-accent);transform:translateY(-2px);box-shadow:0 6px 20px #00000012}.concept-name{font-size:1rem;font-weight:700;display:block}.concept-english{color:var(--home-faint);margin-top:.1rem;font-size:.75rem;display:block}.concept-summary{color:var(--home-muted);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:.6rem 0 0;font-size:.85rem;line-height:1.7;display:-webkit-box;overflow:hidden}.root-grid{grid-template-columns:repeat(auto-fit,minmax(16rem,1fr));gap:1rem;display:grid}.root-card{border:1px solid var(--home-border);border-left:3px solid var(--home-accent);background:var(--home-bg-card);border-radius:.9rem;padding:1.4rem 1.5rem}.root-num{background:var(--home-accent-soft);width:1.6rem;height:1.6rem;color:var(--home-accent);border-radius:50%;place-content:center;font-size:.8rem;font-weight:700;display:inline-grid}.root-title{margin:.7rem 0 .5rem;font-size:1.05rem;font-weight:700}.root-body{color:var(--home-muted);margin:0;font-size:.88rem;line-height:1.8}.root-link{color:var(--home-accent);margin-top:.8rem;font-size:.88rem;font-weight:600;text-decoration:none;display:inline-block}.section-grid{grid-template-columns:repeat(auto-fill,minmax(16rem,1fr));gap:1rem;display:grid}.section-card{border:1px solid var(--home-border);background:var(--home-bg-card);color:inherit;border-radius:.9rem;padding:1.2rem 1.3rem;text-decoration:none;transition:transform .15s,border-color .15s,box-shadow .15s;display:block}.section-card:hover{border-color:var(--home-accent);transform:translateY(-2px);box-shadow:0 6px 20px #00000012}.section-card-head{justify-content:space-between;align-items:baseline;display:flex}.section-num{color:var(--home-accent);letter-spacing:.05em;font-size:.8rem;font-weight:700}.section-count{color:var(--home-faint);font-size:.75rem}.section-title{margin:.5rem 0 .4rem;font-size:1.05rem;font-weight:700}.section-desc{color:var(--home-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:.85rem;line-height:1.7;display:-webkit-box;overflow:hidden}@media (max-width:900px){.home .hero{grid-template-columns:minmax(0,1fr) 12rem;gap:2rem}.loop-ring{width:10rem;height:10rem}}@media (max-width:768px){.home{padding-left:1.25rem;padding-right:1.25rem}.home .hero{grid-template-columns:1fr;gap:1.75rem;padding-top:1.5rem}.hero-visual{order:0}.loop-ring{width:9rem;height:9rem}.home section{margin-top:2.75rem}.home #routes{margin-top:2.25rem}.route-tab{text-align:left;padding:.7rem .8rem}.route-panel{padding:1.15rem 1.1rem 1.35rem}}@media (max-width:420px){.route-tab{max-width:100%;padding-left:.65rem;padding-right:.65rem}.route-step{gap:.75rem}}