:root{--bg:#0B1220;--bg2:#111B2E;--card:#16223A;--line:#233252;--txt:#E6EDF7;--muted:#9FB0C9;--acc:#3B82F6;--acc2:#60A5FA;--hi:#F59E0B;--ok:#22C55E;--r:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--txt);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Inter,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--acc2);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.9rem,4.5vw,3rem)}h2{font-size:clamp(1.5rem,3vw,2.1rem)}h3{font-size:1.15rem}
p{margin:0 0 1em}.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:.5rem;background:var(--acc);color:#fff;font-weight:700;padding:.85rem 1.4rem;border-radius:999px;border:0;cursor:pointer;transition:.2s;box-shadow:0 8px 24px rgba(59,130,246,.35)}
.btn:hover{background:var(--acc2);text-decoration:none;transform:translateY(-1px)}
.btn.ghost{background:transparent;border:1px solid var(--line);box-shadow:none;color:var(--txt)}.btn.ghost:hover{border-color:var(--acc)}
.btn.wa{background:#22C55E;box-shadow:0 8px 24px rgba(34,197,94,.3)}.btn.wa:hover{background:#16A34A}
/* header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(11,18,32,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:1rem}
.logo{display:flex;align-items:center;gap:.55rem;font-weight:900;font-size:1.25rem;color:#fff;letter-spacing:-.02em}
.logo svg{width:34px;height:34px}.logo span b{color:var(--acc2)}
.nav{display:flex;gap:1.4rem;align-items:center}.nav a{color:var(--txt);font-weight:600;font-size:.95rem}.nav a:hover{color:var(--acc2);text-decoration:none}
.nav .btn{padding:.55rem 1.05rem;font-size:.9rem}
.burger{display:none;background:none;border:1px solid var(--line);color:#fff;border-radius:8px;padding:.4rem .6rem;font-size:1.2rem}
@media(max-width:860px){.nav{display:none;position:absolute;top:66px;left:0;right:0;background:var(--bg2);flex-direction:column;padding:1rem 20px 1.4rem;border-bottom:1px solid var(--line);align-items:flex-start}.nav.open{display:flex}.burger{display:block}}
/* hero */
.hero{padding:4.5rem 0 3.5rem;background:radial-gradient(900px 400px at 15% -10%,rgba(59,130,246,.28),transparent 60%),radial-gradient(700px 300px at 90% 10%,rgba(245,158,11,.15),transparent 60%)}
.hero .kicker{display:inline-block;background:rgba(59,130,246,.15);color:var(--acc2);border:1px solid rgba(59,130,246,.35);border-radius:999px;padding:.3rem .9rem;font-size:.85rem;font-weight:700;margin-bottom:1rem}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:720px}
.badges{display:flex;flex-wrap:wrap;gap:.6rem;margin:1.2rem 0 1.6rem}.badges{list-style:none;padding:0}.badges li,.badges span{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:.4rem .9rem;font-size:.9rem;font-weight:600}
.badges li::before,.badges span::before{content:"✓ ";color:var(--ok)}
.ctas{display:flex;gap:.8rem;flex-wrap:wrap}
/* sections */
section{padding:3.5rem 0}section.alt{background:var(--bg2)}
.sec-h{max-width:720px;margin-bottom:2rem}.sec-h p{color:var(--muted)}
.grid{display:grid;gap:1.1rem}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.4rem}
.card .ic{width:44px;height:44px;border-radius:12px;background:rgba(59,130,246,.15);display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:.9rem}
.card h3{margin-bottom:.35rem}.card p{color:var(--muted);margin:0;font-size:.95rem}
.steps{counter-reset:s;display:grid;gap:1rem;list-style:none;padding:0;margin:0}.steps .card{position:relative;padding-left:4.2rem}.steps .card::before{counter-increment:s;content:counter(s);position:absolute;left:1.2rem;top:1.3rem;width:2rem;height:2rem;border-radius:50%;background:var(--acc);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.spec{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}.spec div{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:.8rem 1rem}.spec dt{display:block;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}.spec dd{margin:0}.spec b{display:block;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}
@media(max-width:700px){.spec{grid-template-columns:1fr 1fr}}
table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;font-size:.95rem}
th,td{padding:.8rem 1rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:rgba(59,130,246,.12);color:#fff}tr:last-child td{border-bottom:0}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.devices{display:flex;flex-wrap:wrap;gap:.7rem}.devices span{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.8rem 1.1rem;font-weight:600}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.stats div{text-align:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.4rem 1rem}.stats b{display:block;font-size:2rem;color:var(--acc2)}.stats span{color:var(--muted);font-size:.9rem}
@media(max-width:700px){.stats{grid-template-columns:1fr 1fr}}
dl.grid{margin:0}dl.grid dt{margin:0 0 .35rem;font-weight:800}dl.grid dd{margin:0;color:var(--muted);font-size:.95rem}.quote blockquote{margin:0}.quote{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.3rem}.quote .who{display:flex;align-items:center;gap:.7rem;margin-bottom:.7rem}.quote .av{width:40px;height:40px;border-radius:50%;background:var(--acc);display:flex;align-items:center;justify-content:center;font-weight:800}.quote small{display:block;color:var(--muted)}.quote .stars{color:var(--hi);letter-spacing:.1em}.quote p{margin:.5rem 0 0;color:var(--txt)}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.2rem 1.1rem;margin-bottom:.7rem}summary{cursor:pointer;font-weight:700;padding:.8rem 0;list-style:none;display:flex;justify-content:space-between;gap:1rem}summary::after{content:"+";color:var(--acc2);font-size:1.3rem}details[open] summary::after{content:"–"}details p{color:var(--muted);padding-bottom:.9rem;margin:0}
.tabs{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.2rem}.tabs button{background:var(--card);border:1px solid var(--line);color:var(--txt);border-radius:999px;padding:.45rem 1rem;font-weight:600;cursor:pointer}.tabs button.on{background:var(--acc);border-color:var(--acc);color:#fff}
.faqgrp{display:none}.faqgrp.on{display:block}
.cta-band{background:linear-gradient(135deg,#1D4ED8,#3B82F6);border-radius:20px;padding:2.5rem;display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}.cta-band h2{margin:0;color:#fff}.cta-band p{color:#DBEAFE;margin:.3rem 0 0}.cta-band .btn{background:#fff;color:#1D4ED8;box-shadow:none}
.post{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}.post .cover{display:block;aspect-ratio:1200/630;overflow:hidden;background:#111B2E}.post .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s}.post:hover .cover img{transform:scale(1.04)}.post .body{padding:1.1rem 1.2rem 1.3rem}.post h3 a{color:#fff}.post .meta{font-size:.8rem;color:var(--muted);margin-bottom:.4rem}.post p{color:var(--muted);font-size:.93rem;margin:0}
/* article */
.article{max-width:800px}.article h2{margin-top:2rem}.article ul,.article ol{padding-left:1.3rem;color:var(--txt)}.article li{margin-bottom:.4rem}
.breadcrumb{font-size:.85rem;color:var(--muted);margin:1.2rem 0 0}.breadcrumb a{color:var(--muted)}
.author{display:flex;gap:.8rem;align-items:center;margin:2rem 0;padding:1rem;background:var(--card);border:1px solid var(--line);border-radius:12px}.author .av{width:48px;height:48px;border-radius:50%;background:var(--acc);display:flex;align-items:center;justify-content:center;font-weight:800;flex:none}
.art-cover{margin:0 0 1.6rem;border-radius:16px;overflow:hidden;border:1px solid var(--line);aspect-ratio:1200/630;background:#111B2E}.art-cover img{width:100%;height:100%;object-fit:cover}
.smap{display:grid;grid-template-columns:repeat(2,1fr);gap:1.1rem}@media(max-width:760px){.smap{grid-template-columns:1fr}}
.smap .card h2{font-size:1.2rem;display:flex;align-items:center;gap:.6rem;margin-bottom:.8rem}.smap .card h2 span{font-size:.75rem;background:rgba(59,130,246,.15);color:var(--acc2);border-radius:999px;padding:.15rem .6rem;font-weight:700}
.smap ul{list-style:none;padding:0;margin:0}.smap li{padding:.55rem 0;border-top:1px solid var(--line)}.smap li:first-child{border-top:0}.smap li a{font-weight:700;color:#fff}.smap li small{display:block;color:var(--muted);font-size:.85rem;line-height:1.45}
.smap .wide{grid-column:1/-1}.smap .guides{display:grid;grid-template-columns:repeat(2,1fr);gap:0 1.5rem}@media(max-width:760px){.smap .guides{grid-template-columns:1fr}}
.smap .guides li{display:flex;gap:.8rem;align-items:center}.smap .guides li:nth-child(2){border-top:0}@media(max-width:760px){.smap .guides li:nth-child(2){border-top:1px solid var(--line)}}
.smap .guides img{width:112px;height:59px;object-fit:cover;border-radius:8px;flex:none;border:1px solid var(--line)}
.note{border-left:4px solid var(--hi);background:rgba(245,158,11,.08);padding:.9rem 1rem;border-radius:0 10px 10px 0;margin:1.2rem 0}
/* footer */
footer{background:#070C16;border-top:1px solid var(--line);padding:3rem 0 2rem;margin-top:2rem;font-size:.93rem}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2rem}@media(max-width:800px){.fgrid{grid-template-columns:1fr 1fr}}@media(max-width:500px){.fgrid{grid-template-columns:1fr}}
footer h4{margin:0 0 .8rem;color:#fff}footer ul{list-style:none;padding:0;margin:0}footer li{margin-bottom:.45rem}footer a{color:var(--muted)}footer a:hover{color:#fff}
.copy{border-top:1px solid var(--line);margin-top:2rem;padding-top:1.2rem;color:var(--muted);font-size:.82rem}
.wa-float{position:fixed;right:18px;bottom:18px;z-index:60;width:56px;height:56px;border-radius:50%;background:#22C55E;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(34,197,94,.4)}.wa-float svg{width:30px;height:30px;fill:#fff}