:root{--bg:#fbfbfd;--surface:#fff;--surface-dim:#f5f5f7;--text:#1d1d1f;--text-dim:#6e6e73;--hairline:rgba(0,0,0,.08);--accent:#0071e3;--accent-soft:rgba(0,113,227,.1);--radius-card:20px;--radius-chip:12px;--max:980px;--shadow-card:0 1px 2px rgba(0,0,0,.04),0 12px 32px rgba(0,0,0,.06);--shadow-phone:0 2px 6px rgba(0,0,0,.08),0 30px 60px -18px rgba(0,0,0,.28)}@media (prefers-color-scheme:dark){:root{--bg:#000;--surface:#1c1c1e;--surface-dim:#161618;--text:#f5f5f7;--text-dim:#a1a1a6;--hairline:hsla(0,0%,100%,.12);--accent:#2997ff;--accent-soft:rgba(41,151,255,.14);--shadow-card:0 1px 2px rgba(0,0,0,.3),0 12px 32px rgba(0,0,0,.45);--shadow-phone:0 2px 6px rgba(0,0,0,.4),0 30px 60px -18px rgba(0,0,0,.7)}}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,Inter,system-ui,sans-serif;font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}.wrap{max-width:var(--max)}.wrap,.wrap-wide{margin:0 auto;padding:0 22px}.wrap-wide{max-width:1160px}h1,h2,h3{letter-spacing:-.022em;line-height:1.08;margin:0;font-weight:600}h1{font-size:clamp(2.6rem,7vw,4.2rem)}h2{font-size:clamp(1.8rem,4vw,2.6rem)}h3{font-size:1.22rem}p{margin:0}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.nav{position:-webkit-sticky;position:sticky;top:0;z-index:20;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom:1px solid var(--hairline)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:48px}.brand{font-weight:600;letter-spacing:-.02em;color:var(--text);font-size:1.05rem}.nav a.link{color:var(--text-dim);font-size:.86rem;margin-left:22px}.nav a.link:hover{color:var(--text);text-decoration:none}.hero{text-align:center;padding:88px 0 32px;position:relative}.hero p.sub{margin:20px auto 0;max-width:620px;font-size:clamp(1.1rem,2.2vw,1.4rem);color:var(--text-dim)}.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:34px}.btn{display:inline-block;padding:12px 24px;border-radius:980px;font-size:1rem;font-weight:500;min-height:44px;line-height:20px}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{text-decoration:none;opacity:.9}.btn-ghost{color:var(--accent);border:1px solid var(--hairline)}.btn-ghost:hover{text-decoration:none;border-color:var(--accent)}.hero-glow{position:absolute;inset:-10% -10% auto -10%;height:640px;z-index:-1;background:radial-gradient(60% 60% at 50% 0,var(--accent-soft) 0,transparent 70%);pointer-events:none}.hero-stage{display:flex;justify-content:center;padding:56px 0 40px}.grid{display:grid;grid-gap:18px;gap:18px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.card{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-card)}.card h3{margin-bottom:8px}.card p{color:var(--text-dim);font-size:.95rem}section{padding:88px 0}.section-tight{padding:56px 0}.section-head{text-align:center;margin-bottom:48px}.section-head p{color:var(--text-dim);margin-top:12px;font-size:1.08rem}.eyebrow{display:inline-block;color:var(--accent);font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px}.eyebrow,.stat{font-weight:600}.stat{font-size:clamp(2.4rem,6vw,3.4rem);letter-spacing:-.03em}.chip{display:inline-block;padding:5px 12px;border-radius:var(--radius-chip);font-size:.78rem;border:1px solid var(--hairline);color:var(--text-dim)}.chip-live{color:#1d8a4e;border-color:rgba(29,138,78,.35)}dl.faq{margin:0}dl.faq dt{font-weight:600;margin-top:26px}dl.faq dd{margin:8px 0 0}dl.faq dd,footer{color:var(--text-dim)}footer{border-top:1px solid var(--hairline);padding:40px 0;font-size:.85rem}footer a{color:var(--text-dim)}.phone{width:100%;margin:0 auto}.phone-bezel{border-radius:34px;overflow:hidden;border:1px solid var(--hairline);box-shadow:var(--shadow-phone);background:#000;line-height:0}.phone-bezel img{display:block;width:100%;height:auto}.feature-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:56px;gap:56px;align-items:center}.feature-row.reverse .feature-copy{order:2}.feature-row.reverse .feature-art{order:1}.feature-copy h2{margin-bottom:16px}.feature-copy p{color:var(--text-dim);font-size:1.05rem}.feature-copy ul{margin:18px 0 0;padding:0;list-style:none}.feature-copy li{color:var(--text-dim);font-size:.98rem;padding-left:26px;position:relative;margin-top:10px}.feature-copy li:before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:50%;background:var(--accent)}.feature-art{display:flex;justify-content:center}@media (max-width:760px){.feature-row,.feature-row.reverse{grid-template-columns:1fr;gap:32px}.feature-row.reverse .feature-copy{order:1}.feature-row.reverse .feature-art{order:2}.feature-row .feature-copy{text-align:left}}.steps{display:grid;grid-gap:28px;gap:28px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));align-items:start}.step{text-align:center}.step-num{width:34px;height:34px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:600;font-size:.95rem;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}.step h3{font-size:1.08rem;margin-bottom:6px}.step p{color:var(--text-dim);font-size:.94rem}.step .phone{margin-top:20px}.chat-mock{background:var(--surface-dim);border:1px solid var(--hairline);border-radius:22px;padding:20px;text-align:left;font-size:.86rem;color:var(--text-dim);max-width:280px;margin:0 auto}.chat-bubble,.chat-mock{box-shadow:var(--shadow-card)}.chat-bubble{background:var(--surface);border:1px solid var(--hairline);border-radius:14px;padding:12px 14px;margin-bottom:10px}.chat-bubble:last-child{margin-bottom:0}.chat-meta{font-size:.74rem;color:var(--text-dim);margin-bottom:4px;opacity:.8}.dark-showcase{background:linear-gradient(180deg,var(--surface-dim),transparent);border-radius:32px;padding:64px 24px}.dark-pair{display:flex;gap:40px;justify-content:center;flex-wrap:wrap;align-items:flex-end}.dark-pair figure{margin:0;text-align:center}.dark-pair figcaption{margin-top:14px;font-size:.86rem;color:var(--text-dim);font-weight:500}@media (max-width:640px){section{padding:64px 0}.hero{padding:64px 0 24px}.dark-showcase{padding:40px 16px;border-radius:22px}}