*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#090E1A;
  --bg2:#0E1525;
  --bg3:#141E30;
  --border:#1E2D45;
  --text:#EDF2FF;
  --muted:#6B7A95;
  --body:#C9D3EA;
  --green:#00C98A;
  --green-dim:#00C98A22;
}
html{scroll-behavior:smooth}
body{font-family:'Outfit',sans-serif;background:var(--bg);color:var(--text);line-height:1.75}
a{color:var(--green)}
.container{max-width:760px;margin:0 auto;padding:0 24px}
header{border-bottom:1px solid var(--border);background:var(--bg2)}
header .container{max-width:1000px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:16px;padding-bottom:16px}
.brand{font-size:22px;font-weight:800;color:var(--text);text-decoration:none}
.brand span{color:var(--green)}
.head-links{display:flex;align-items:center;gap:18px;font-size:14px}
.head-links a.plain{color:var(--muted);text-decoration:none}
.head-links a.plain:hover{color:var(--green)}
.btn{display:inline-block;background:var(--green);color:#04130D;font-weight:700;text-decoration:none;border-radius:10px;padding:10px 18px;font-size:15px}
.btn:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}
main{padding:48px 0 72px}
.kicker{color:var(--green);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
h1{font-size:40px;font-weight:800;line-height:1.15;margin-bottom:14px}
.meta{color:var(--muted);font-size:14px;margin-bottom:28px}
.lead{font-size:19px;color:var(--text);margin-bottom:22px}
h2{font-size:26px;font-weight:700;line-height:1.3;margin:48px 0 14px;scroll-margin-top:20px}
h3{font-size:19px;font-weight:700;margin:28px 0 8px}
p{margin-bottom:16px;color:var(--body)}
ul,ol{margin:0 0 18px 24px;color:var(--body)}
li{margin-bottom:8px}
strong{color:var(--text)}
code{background:var(--bg3);border:1px solid var(--border);border-radius:6px;padding:1px 6px;font-size:.92em;color:var(--text)}
.toc{border:1px solid var(--border);background:var(--bg2);border-radius:14px;padding:18px 22px;margin:8px 0 8px}
.toc p{margin:0 0 8px;font-weight:600;color:var(--text)}
.toc ol{margin:0 0 0 20px}
.toc li{margin-bottom:4px}
.note{border:1px solid var(--border);border-left:4px solid var(--green);background:var(--bg2);border-radius:10px;padding:14px 18px;margin:20px 0}
.note p:last-child{margin-bottom:0}
table{width:100%;border-collapse:collapse;margin:8px 0 6px;font-size:15px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--border);color:var(--body);vertical-align:top}
th{color:var(--text);font-weight:600}
td.num{white-space:nowrap;color:var(--text);font-weight:600}
.table-wrap{overflow-x:auto}
.source{font-size:13px;color:var(--muted);margin-bottom:20px}
figure{margin:22px 0 26px}
figure img{display:block;width:100%;height:auto;border-radius:12px;border:1px solid var(--border)}
figcaption{font-size:14px;color:var(--muted);margin-top:8px}
.demo-video{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;border:1px solid var(--border);background:#000}
.demo-video button{all:unset;cursor:pointer;display:block;width:100%;height:100%;position:relative}
.demo-video img{width:100%;height:100%;object-fit:cover;display:block;border:0;border-radius:0}
.demo-video iframe{width:100%;height:100%;border:0;display:block}
.demo-play{position:absolute;left:50%;top:71%;transform:translate(-50%,-50%);width:68px;height:48px;border-radius:12px;background:rgba(232,69,69,.92)}
.demo-play::after{content:"";position:absolute;left:27px;top:14px;border-style:solid;border-width:10px 0 10px 17px;border-color:transparent transparent transparent #fff}
.demo-video button:hover .demo-play{background:#E84545}
.cta{border:1px solid var(--border);background:linear-gradient(135deg,var(--bg2),var(--bg3));border-radius:16px;padding:24px;margin:26px 0}
.cta p{margin-bottom:14px}
.cta .btns{display:flex;flex-wrap:wrap;gap:10px}
.faq h3{margin-top:22px}
footer{border-top:1px solid var(--border);padding:28px 0;color:var(--muted);font-size:14px}
@media (max-width:640px){
  h1{font-size:31px}
  h2{font-size:23px}
  .lead{font-size:17px}
  .head-links a.plain{display:none}
  .demo-play{top:66%;width:56px;height:40px}
  .demo-play::after{left:22px;top:11px;border-width:9px 0 9px 15px}
}
.related{border-top:1px solid var(--border);margin-top:40px;padding-top:22px}
.related p{margin-bottom:8px}
.guide-list{list-style:none;margin:24px 0 0}
.guide-list li{border:1px solid var(--border);background:var(--bg2);border-radius:14px;padding:20px 22px;margin-bottom:14px}
.guide-list a{font-size:20px;font-weight:700;text-decoration:none}
.guide-list a:hover{text-decoration:underline}
.guide-list p{margin:6px 0 0}
.compare td:first-child{color:var(--text);font-weight:600}