:root{--bg:#0d1117;--card:#161b22;--line:#30363d;--fg:#e6edf3;--mut:#9da7b3;--acc:#58a6ff;--y:#ffdd00}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--fg);padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
a{color:var(--acc)}main,header,footer{max-width:1040px;margin:auto;padding:0 18px}
header{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;padding-top:14px}
header nav{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:.95rem}header nav a{text-decoration:none;color:var(--mut);padding:6px 0}
.logo{font-weight:800;color:var(--fg);text-decoration:none;font-size:1.15rem}
h1{font-size:clamp(1.8rem,6vw,3rem);line-height:1.15;margin:40px 0 12px}h2{font-size:1.6rem;margin:56px 0 14px}h3{margin:0 0 6px;font-size:1.08rem}
p.lead{color:var(--mut);font-size:1.1rem;max-width:680px}
.btn{display:inline-block;padding:12px 20px;border-radius:10px;background:var(--acc);color:#04111f;font-weight:700;text-decoration:none;border:0;font-size:1rem;cursor:pointer;min-height:44px}
.btn.alt{background:transparent;color:var(--fg);border:1px solid var(--line)}.btn.y{background:var(--y);color:#000}
.row{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}
.g{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}
.c{padding:18px;border:1px solid var(--line);border-radius:12px;background:var(--card)}a.c{display:block;color:inherit;text-decoration:none}a.c:hover{border-color:var(--acc)}
.c p{margin:0;color:var(--mut)}.price{font-size:1.5rem;font-weight:800;margin:6px 0}.price small{font-size:.8rem;color:var(--mut);font-weight:400;display:block}
.c ul{padding-left:18px;color:var(--mut);margin:8px 0 0}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.tabs button{min-height:44px;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--fg);cursor:pointer;font:inherit}.tabs button[aria-selected=true]{background:var(--acc);color:#04111f;border-color:var(--acc)}
.demo{border:1px solid var(--line);border-radius:12px;background:#fff;color:#111;padding:18px;min-height:260px}.demo[hidden]{display:none}
.demo .item{display:flex;justify-content:space-between;align-items:center;gap:8px;border-bottom:1px solid #eee;padding:8px 0}.demo button{min-height:40px;padding:6px 12px;border-radius:8px;border:1px solid #ccc;background:#f4f4f4;cursor:pointer;font:inherit}
.demo .hero{background:linear-gradient(135deg,#ff7a59,#ffb347);color:#fff;border-radius:10px;padding:26px;text-align:center}.demo input{font:inherit;padding:8px;border:1px solid #bbb;border-radius:8px;width:100%;max-width:200px}
form label{display:block;margin:12px 0 4px;font-weight:600}form input,form select,form textarea{width:100%;padding:11px;border-radius:8px;border:1px solid var(--line);background:#0b0f14;color:var(--fg);font:inherit}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.msg{margin-top:10px;min-height:1.4em}.err{color:#ff7b72}.ok{color:#3fb950}
details{border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin:8px 0;background:var(--card)}summary{cursor:pointer;font-weight:600}
.tag{display:inline-block;font-size:.75rem;background:#30363d;border-radius:999px;padding:2px 10px;margin-bottom:8px;color:var(--mut)}
footer{border-top:1px solid var(--line);margin-top:60px;padding-top:20px;padding-bottom:30px;color:var(--mut);font-size:.92rem}footer .g a{color:var(--mut)}
.links{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:6px}form label.chk{font-weight:400}.chk input{width:auto}.big{font-size:1.5rem}.note{color:var(--mut);font-size:.9rem}main>h1:first-child{margin-top:40px}
#chatbtn{position:fixed;right:calc(14px + env(safe-area-inset-right));bottom:calc(14px + env(safe-area-inset-bottom));z-index:20;box-shadow:0 4px 14px #0008}
#chat{position:fixed;right:calc(10px + env(safe-area-inset-right));bottom:calc(10px + env(safe-area-inset-bottom));z-index:21;width:min(360px,calc(100vw - 20px));height:min(480px,calc(100vh - 80px));background:var(--card);border:1px solid var(--line);border-radius:14px;display:flex;flex-direction:column;box-shadow:0 8px 30px #000a}#chat[hidden]{display:none}
.chead{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;border-bottom:1px solid var(--line)}.chead button{background:none;border:0;color:var(--fg);font-size:1.1rem;min-width:44px;min-height:44px;cursor:pointer}
#clog{flex:1;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:8px}.cm{padding:8px 12px;border-radius:12px;max-width:85%;white-space:pre-wrap;word-wrap:break-word}.cm.a{background:#21262d}.cm.u{background:var(--acc);color:#04111f;align-self:flex-end}
#cform{display:flex;gap:6px;padding:10px;border-top:1px solid var(--line)}#cform input{flex:1;min-width:0;padding:10px;border-radius:8px;border:1px solid var(--line);background:#0b0f14;color:var(--fg);font:16px system-ui}
.lnk{background:none;border:0;color:var(--acc);font:inherit;padding:8px 2px;cursor:pointer;text-decoration:underline}
fieldset.feats{border:1px solid var(--line);border-radius:10px;margin:14px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:2px 12px}fieldset.feats legend{font-weight:600;padding:0 6px}fieldset.feats label{margin:6px 0}
.pun{color:var(--mut);font-style:italic;font-size:.92rem;min-height:1.4em;margin:8px 0}
.tablewrap{overflow-x:auto}.cmp{width:100%;border-collapse:collapse;font-size:.92rem;margin:8px 0}.cmp th,.cmp td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:top}.cmp tr.us td{color:var(--fg);background:#1c2a3a}.cmp-h{margin-top:22px}
.care{border-color:var(--y);box-shadow:0 0 0 2px var(--y) inset}