:root{--bg:#f8f9fa;--surface:#fff;--surface-soft:#f3f4f6;--line:#e5e7eb;--text:#111827;--muted:#6b7280;--primary:#2563eb;--primary-dark:#1d4ed8;--accent:#dbeafe;--success:#16a34a;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);--radius-sm:8px;--radius-md:12px;--radius-lg:14px}*,:after,:before{-webkit-tap-highlight-color:transparent}.nav-item,.pill,.sell,.tab-btn,a,button{-webkit-tap-highlight-color:transparent;outline:none}.nav-item:focus,.pill:focus,.pill:focus-visible,.tab-btn:focus,.tab-btn:focus-visible,a:focus,a:focus-visible,button:focus,button:focus-visible{outline:none;box-shadow:none}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}body{min-height:100vh}.app-root{position:relative}.app-shell{max-width:480px;margin:0 auto;padding:10px 14px 90px}.home-header{margin-bottom:6px}.home-header-brand strong{font-size:1.1rem}.home-header-brand span{color:var(--muted);font-size:.8rem}.sub-header{display:flex;align-items:center;padding:12px 0;margin-bottom:4px;border-bottom:1px solid var(--line);position:-webkit-sticky;position:sticky;top:0;background:var(--bg);z-index:10}.back-btn{background:none;border:none;font-size:1.3rem;cursor:pointer;padding:4px 8px 4px 0;color:var(--text);line-height:1}.sub-header h1{flex:1 1;text-align:center;font-size:1rem;font-weight:600;margin:0;padding-right:2rem}.topbar{justify-content:space-between;margin-bottom:10px}.brand,.topbar{display:flex;align-items:center}.brand{gap:10px}.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--primary);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}.brand-copy strong{display:block;font-size:.95rem}.brand-copy span{color:var(--muted);font-size:.78rem}.icon-button{display:none}.card,.panel{box-shadow:var(--shadow-sm)}.card,.hero-card,.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md)}.hero-card{padding:16px}.hero-card h1{margin:4px 0;font-size:1.2rem}.hero-card p{margin:2px 0 0;color:var(--muted);font-size:.85rem}.search-bar{gap:8px;background:var(--surface);padding:10px 14px;border-radius:var(--radius-md);margin:0 0 8px;border:1px solid var(--line);font-size:16px;color:var(--muted);box-shadow:var(--shadow-sm)}.search-bar,.section-title{display:flex;align-items:center}.section-title{justify-content:space-between;margin:12px 0 6px}.section-title h2{margin:0;font-size:.95rem}.section-title span{color:var(--muted);font-size:.8rem}.row-scroll{display:flex;gap:6px;overflow:auto;padding-bottom:2px}.pill{white-space:nowrap;padding:6px 12px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--muted);font-size:.82rem;cursor:pointer}.pill.active{background:var(--primary);color:#fff;border-color:var(--primary)}.ai-cta{padding:12px;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line)}.ai-cta strong{display:block;margin-bottom:2px;font-size:.9rem}.compact-cta{margin-top:10px;box-shadow:none}.ghost-btn,.primary-btn{border:0;border-radius:8px;padding:9px 16px;font-weight:600;font-size:.88rem;display:inline-block;cursor:pointer}.primary-btn{background:var(--primary);color:#fff}.ghost-btn{background:var(--accent);color:var(--primary-dark)}.grid{display:grid;grid-gap:10px;gap:10px;grid-template-columns:1fr 1fr}.listing-card{overflow:hidden;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.listing-thumb{width:100%;aspect-ratio:1/1;background:var(--surface-soft);display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:var(--muted);position:relative}.listing-thumb img{width:100%;height:100%;object-fit:cover}.listing-thumb .price-badge{position:absolute;bottom:6px;left:6px;background:rgba(0,0,0,.7);color:#fff;padding:3px 8px;border-radius:6px;font-size:.78rem;font-weight:700}.listing-body{padding:8px 10px;flex:1 1;display:flex;flex-direction:column}.listing-body .small{font-size:.72rem;margin-bottom:1px}.price{font-size:.95rem;font-weight:700;margin:1px 0;color:var(--text)}.meta{color:var(--muted);font-size:.75rem;margin-top:2px}.listing-body strong{font-size:.82rem;font-weight:600;line-height:1.2;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.bottom-nav{position:fixed;bottom:12px;left:0;right:0;margin:0 auto;width:min(420px,calc(100vw - 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