:root{--bg:#ffffff;--bg2:#f7f7f7;--border:#e7e7e7;--border2:#dbdbdb;--text:#111111;--text2:#4d4d4d;--muted:#6e6e6e;--blue:#2680eb;--blue-hi:#4096f3;--blue-deep:#1a5cb8;--green:#0a8a5f;--r-s:8px;--r-m:12px;--r-l:16px;--nav-bg:rgba(255,255,255,.9);--card:#ffffff;--card-shadow:0 12px 32px rgba(0,0,0,.04);--btn-bg:linear-gradient(180deg,#2b2b2b,#111111);--btn-fg:#ffffff;--btn-bd:#000000;--btn-hov:brightness(1.25);--ghost-bg:#ffffff;--row-hover:#fafafa;--numeral:#cfcfcf;--strong:#000000;--sel-bg:#111111;--sel-fg:#ffffff}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:Inter,system-ui,Segoe UI,Arial,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}::selection{background:var(--sel-bg);color:var(--sel-fg)}a{color:inherit;text-decoration:none}.wrap{max-width:1080px;margin:0 auto;padding:0 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p.lead{margin-left:auto;margin-right:auto}.hero-cta{justify-content:center}.hero .panel{margin:48px auto 0}.theme-btn{margin-left:auto;width:38px;height:38px;flex:none;display:grid;place-items:center;border:1px solid var(--border2);border-radius:999px;background:transparent;color:var(--text);cursor:pointer}.theme-btn:hover{background:var(--bg2)}.nav-in .btn{margin-left:0}.product .buy-box{margin-top:24px}.p-visual .panel{margin:0 auto}.p-visual .demo-hint{text-align:center}@media (max-width:860px){.product{grid-template-columns:1fr}}h1,.sec-head h2,.product h3,.manifesto h2{font-family:"Source Serif 4",Georgia,Times New Roman,serif;font-weight:600;letter-spacing:-.01em}h1{font-size:48px;line-height:1.1}.sec-head h2,.manifesto h2{font-size:32px}@media (max-width:640px){h1{font-size:34px}}.logo{color:var(--text)}.logo-mark{height:20px;width:auto;display:block}.logo-word{font-size:11px;font-weight:600;letter-spacing:.34em;color:var(--muted);margin-left:2px}.mark-frame 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