:root{color-scheme:light;--bg:radial-gradient(1200px 800px at 10% -10%,#e6f4ff 0%,transparent 55%),radial-gradient(1200px 800px at 110% 10%,#f9f0ff 0%,transparent 55%),#fff;--ink:#1f1f1f;--ink-soft:#555;--ink-mute:#888;--line:#ececec}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100vh;background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Helvetica Neue,sans-serif;color:var(--ink);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}a{color:inherit}.libapps-shell{max-width:1180px;margin:0 auto;padding:72px 24px 96px}.libapps-hero{margin-bottom:80px;max-width:880px}.libapps-hero-mark{display:inline-block;font-size:.95rem;font-weight:600;color:#1677ff;letter-spacing:.02em;padding:6px 14px;background:#e6f4ff;border-radius:999px;margin-bottom:22px}.libapps-hero h1{font-size:clamp(2.4rem,5vw,3.6rem);line-height:1.06;letter-spacing:-.02em;margin:0 0 18px;font-weight:700}.libapps-hero-lead{font-size:clamp(1.05rem,1.5vw,1.2rem);color:var(--ink-soft);line-height:1.55;margin:0;max-width:64ch}.libapps-section{margin-bottom:80px;scroll-margin-top:24px}.libapps-section-head{margin-bottom:28px}.libapps-section-head h2{font-size:clamp(1.6rem,2.5vw,2rem);letter-spacing:-.01em;margin:0 0 8px;font-weight:700}.libapps-section-head p{color:var(--ink-soft);margin:0;max-width:64ch}.libapps-prose{max-width:64ch}.libapps-prose p{font-size:1.02rem;line-height:1.6;color:var(--ink-soft);margin:0 0 14px}.libapps-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));grid-gap:22px;gap:22px}.libapps-card-icon{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;color:#fff;flex-shrink:0}.libapps-card-header{display:flex;align-items:flex-start;gap:14px;margin-bottom:12px}.libapps-card-title{font-size:1.15rem;font-weight:600;line-height:1.25;margin:0;color:var(--ink)}.libapps-card-domain{font-size:.8rem;color:var(--ink-mute);font-family:ui-monospace,SF Mono,Menlo,monospace;margin-top:2px}.libapps-card-desc{color:var(--ink-soft);font-size:.93rem;line-height:1.55;min-height:2.8em;margin:0 0 14px}.libapps-card-tags{margin-bottom:14px}.libapps-faq{display:flex;flex-direction:column;gap:10px;max-width:780px}.libapps-faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;transition:border-color .15s ease}.libapps-faq-item:hover{border-color:#d9d9d9}.libapps-faq-item summary{cursor:pointer;font-weight:600;color:var(--ink);list-style:none;font-size:1rem;display:flex;align-items:center;justify-content:space-between;gap:16px}.libapps-faq-item summary:after{content:"+";color:var(--ink-mute);font-size:1.4rem;font-weight:400;line-height:1}.libapps-faq-item[open] summary:after{content:"−"}.libapps-faq-item summary::-webkit-details-marker{display:none}.libapps-faq-item p{color:var(--ink-soft);font-size:.95rem;line-height:1.6;margin:12px 0 0}.libapps-footer{margin-top:80px;padding-top:28px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;color:var(--ink-mute);font-size:.88rem}.libapps-footer a{color:#1677ff;text-decoration:none}.libapps-footer a:hover{text-decoration:underline}@media (max-width:640px){.libapps-shell{padding:48px 20px 64px}.libapps-hero,.libapps-section{margin-bottom:56px}}