:root{--bg: #f4f9ff;--surface: #ffffff;--tint: #e3f0ff;--border: #dce8f5;--primary: #1e6fe0;--primary-dark: #1859b8;--sky: #38bdf8;--ink: #0d2b4e;--muted: rgba(13, 43, 78, .62);--live: #059669;--radius: 20px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}h1,h2,h3{line-height:1.12;letter-spacing:-.02em;margin:0}p{margin:0}.nav,main,.footer{width:min(1080px,100% - 40px);margin-inline:auto}.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:-.02em}.nav nav{display:flex;align-items:center;gap:22px;font-weight:600;font-size:15px;color:var(--muted)}.nav nav a:hover{color:var(--ink)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--primary);color:#fff;font-weight:700;font-size:16px;padding:0 24px;height:54px;border-radius:16px;transition:background .15s,transform .15s;border:0;cursor:pointer;font-family:inherit;line-height:1}.btn:hover{background:var(--primary-dark)}.btn:active{transform:scale(.98)}.btn-small{height:40px;padding:0 16px;font-size:14px;color:#fff!important;border-radius:12px}.btn-ghost{background:var(--tint);color:var(--primary)}.btn-ghost:hover{background:#d3e7ff}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:48px 0 72px}h1{font-size:clamp(38px,6vw,62px);font-weight:800}.accent{color:var(--primary)}.lead{font-size:20px;color:var(--muted);margin:20px 0 28px;max-width:520px}.cta{display:flex;flex-wrap:wrap;gap:12px}.note{margin-top:16px;font-size:14px;color:var(--muted)}.link{color:var(--primary);font-weight:600;text-decoration:underline;text-underline-offset:3px}.section{padding:56px 0}.section>h2{font-size:clamp(28px,4vw,38px);font-weight:800;margin-bottom:28px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.step{padding:24px}.step-n{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;font-weight:800;margin-bottom:16px}.step h3,.feature h3{font-size:19px;font-weight:700;margin-bottom:8px}.step p,.feature p{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature{padding:24px}.feature-icon{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--tint);color:var(--primary);margin-bottom:16px}.install-card{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:32px;background:var(--primary);border-color:var(--primary);color:#fff}.install-card h2{font-size:30px;font-weight:800;margin-bottom:8px}.install-card p{color:#ffffffd9;max-width:560px}.install-card .btn{background:#fff;color:var(--primary);flex:none}.install-card .btn:hover{background:var(--tint)}.faq{display:grid;gap:12px}.faq details{padding:4px 22px}.faq summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--primary);font-size:22px;line-height:1}.faq details[open] summary:after{content:"–"}.faq p{color:var(--muted);padding-bottom:18px;max-width:760px}.footer{display:flex;align-items:center;justify-content:space-between;padding:36px 0 48px;border-top:1px solid var(--border);margin-top:24px;color:var(--muted)}.footer .brand{color:var(--ink);font-size:17px}.phone{width:300px;margin-inline:auto;padding:10px;border-radius:42px;background:var(--ink);box-shadow:0 30px 60px #0d2b4e38}.phone-screen{background:var(--bg);border-radius:33px;padding:18px 14px 16px;min-height:560px;display:flex;flex-direction:column;gap:12px}.m-header{display:flex;align-items:center;justify-content:space-between;padding:4px 4px 0}.m-title{font-weight:700;font-size:18px}.m-chip{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--live);background:#0596691f;padding:5px 10px;border-radius:20px}.m-chip i{width:7px;height:7px;border-radius:50%;background:var(--live);animation:pulse 1.2s ease-in-out infinite alternate}.m-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:14px 16px}.m-code small{display:block;font-size:10px;font-weight:700;letter-spacing:1.3px;color:var(--muted)}.m-code strong{display:block;font-size:28px;letter-spacing:6px;color:var(--primary);font-weight:800}.m-code span{font-size:12px;color:var(--muted)}.m-player{padding:16px}.eq{display:flex;align-items:center;justify-content:space-between;height:76px;gap:3px}.eq span{flex:1;height:100%;border-radius:4px;background:var(--primary);transform:scaleY(.12);animation:eq ease-in-out infinite alternate}.m-controls{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:14px}.m-btn{width:44px;height:44px;border-radius:50%;background:var(--tint)}.m-play{width:60px;height:60px;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center;gap:6px;box-shadow:0 6px 14px #1e6fe066}.m-play b{width:6px;height:22px;border-radius:3px;background:#fff}.m-chat{margin-top:auto;display:flex;flex-direction:column;gap:6px}.bubble{max-width:78%;padding:8px 13px;border-radius:16px;font-size:13px}.bubble.them{background:var(--tint);border-bottom-left-radius:5px;align-self:flex-start}.bubble.me{background:var(--primary);color:#fff;border-bottom-right-radius:5px;align-self:flex-end}@keyframes eq{0%{transform:scaleY(.12)}to{transform:scaleY(1)}}@keyframes pulse{0%{opacity:.35}to{opacity:1}}@media(prefers-reduced-motion:reduce){.eq span{animation:none;transform:scaleY(.5)}.m-chip i{animation:none}html{scroll-behavior:auto}}@media(max-width:900px){.hero{grid-template-columns:1fr;padding-top:24px;gap:40px}.steps,.grid{grid-template-columns:1fr}.install-card{flex-direction:column;align-items:flex-start}.nav nav a:not(.btn){display:none}}@media(max-width:480px){.btn{width:100%}.footer{flex-direction:column;gap:10px;text-align:center}}.joinbox{margin-top:22px;max-width:460px}.joinbox label{display:block;font-weight:600;font-size:15px;margin-bottom:10px}.joinrow{display:flex;gap:10px}.joinrow input,.jp-code{flex:1;min-width:0;height:54px;border-radius:16px;border:1px solid var(--border);background:var(--surface);padding:0 16px;font-family:inherit;font-weight:700;font-size:22px;line-height:1;letter-spacing:8px;text-align:center;color:var(--ink);text-transform:uppercase}.joinrow input:focus,.jp-code:focus{outline:2px solid var(--primary);outline-offset:0;border-color:transparent}.joinrow input::placeholder,.jp-code::placeholder{color:#0d2b4e47}.btn:disabled{opacity:.5;cursor:not-allowed}.joinrow .btn{padding:0 22px}.jp-main{width:min(1000px,100% - 40px);margin:8px auto 56px}.jp-join{max-width:460px;margin:48px auto;padding:32px;display:grid;gap:16px}.jp-join h1{font-size:30px}.jp-join p{color:var(--muted)}.jp-join .jp-code{width:100%;flex:none}.jp-warn{color:#b45309!important;font-size:14px}.jp-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px;align-items:start}.jp-player{padding:22px;display:grid;gap:18px;align-content:start;height:480px}.jp-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.jp-code-label{color:var(--muted);font-weight:600}.jp-code-label strong{color:var(--ink);letter-spacing:3px;margin-left:4px}.chip{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:700;padding:6px 12px;border-radius:20px}.chip i{width:8px;height:8px;border-radius:50%;background:currentColor}.chip.live{color:var(--live);background:#0596691f}.chip.live i{animation:pulse 1.2s ease-in-out infinite alternate}.chip.warn{color:#b45309;background:#d977061f}.chip.end{color:#dc2626;background:#dc26261a}.jp-bars{width:100%;height:110px;display:block}.jp-controls{display:flex;align-items:center;justify-content:center;gap:22px}.round{display:inline-grid;place-items:center;width:56px;height:56px;border-radius:50%;border:0;cursor:pointer;background:var(--tint);color:var(--ink);transition:transform .12s,background .15s}.round:hover:not(:disabled){background:#d3e7ff}.round:active:not(:disabled){transform:scale(.94)}.round:disabled{opacity:.4;cursor:not-allowed}.round.big{width:76px;height:76px;background:var(--primary);color:#fff;box-shadow:0 6px 16px #1e6fe066}.round.big:hover:not(:disabled){background:var(--primary-dark)}.round.send{width:46px;height:46px;background:var(--primary);color:#fff;flex:none}.round.send:hover:not(:disabled){background:var(--primary-dark)}.jp-vol{display:flex;align-items:center;gap:10px;max-width:320px;margin-inline:auto;width:100%}.jp-vol input{flex:1;accent-color:var(--primary)}.icon-btn{display:inline-grid;place-items:center;width:40px;height:40px;border:0;border-radius:12px;background:transparent;color:var(--ink);cursor:pointer}.icon-btn:hover:not(:disabled){background:var(--tint)}.icon-btn:disabled{opacity:.4}.jp-notice{text-align:center;font-size:14px;color:var(--muted)}.jp-ended{text-align:center;display:grid;gap:14px;justify-items:center}.jp-ended p{color:var(--muted)}.jp-leave{width:100%}.jp-chat{padding:20px;display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:12px;height:480px}.jp-chat h2{font-size:18px;font-weight:700}.jp-log{overflow-y:auto;display:flex;flex-direction:column;gap:6px;padding-right:4px}.jp-empty{margin:auto;color:var(--muted);font-size:14px}.msg{max-width:82%;padding:9px 14px;border-radius:18px;font-size:15px;overflow-wrap:anywhere}.msg.me{align-self:flex-end;background:var(--primary);color:#fff;border-bottom-right-radius:5px}.msg.them{align-self:flex-start;background:var(--tint);border-bottom-left-radius:5px}.jp-send{display:flex;gap:8px;align-items:center}.jp-send input{flex:1;min-width:0;height:46px;border-radius:24px;border:1px solid var(--border);padding:0 18px;font:inherit;color:var(--ink);background:var(--surface)}.jp-send input:focus{outline:2px solid var(--primary);border-color:transparent}@media(max-width:900px){.jp-grid{grid-template-columns:1fr}.jp-player{height:auto}.jp-chat{height:420px}}