:root{
  --bg:#0b1220;
  --card:#121a2e;
  --muted:#93a4c7;
  --text:#eaf0ff;
  --brand:#4da3ff;
  --brand2:#35e0b7;
  --line:rgba(255,255,255,.10);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 18px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:radial-gradient(1200px 600px at 20% -10%, rgba(77,163,255,.30), transparent 60%),
radial-gradient(900px 600px at 100% 0%, rgba(53,224,183,.18), transparent 55%),
var(--bg); color:var(--text);}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:22px}

.nav{
  position:sticky; top:0; z-index:20;
  background:rgba(11,18,32,.75);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.nav .inner{display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:center;gap:10px}
.logo{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand2));
  box-shadow: var(--shadow);
}
.brand strong{letter-spacing:.3px}
.brand small{display:block;color:var(--muted);margin-top:2px;font-size:12px}

.links{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.links a{
  padding:10px 12px;border-radius:12px;color:var(--muted);
}
.links a.active,.links a:hover{
  color:var(--text);
  background:rgba(255,255,255,.06);
}

.hero{
  padding:34px 0 10px 0;
}
.hero-grid{display:grid;grid-template-columns: 1.15fr .85fr;gap:18px;align-items:stretch}
@media (max-width:920px){ .hero-grid{grid-template-columns:1fr} }

.h-card{
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:22px;
}
.kicker{color:var(--brand2);font-weight:700;letter-spacing:.4px;font-size:13px}
h1{margin:10px 0 10px 0;font-size:40px;line-height:1.08}
@media (max-width:560px){ h1{font-size:34px} }
p{color:var(--muted);line-height:1.6;margin:0 0 12px 0}

.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 14px;border-radius:14px;border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  color:var(--text);
  font-weight:650;
}
.btn.primary{
  border:0;
  background:linear-gradient(135deg,var(--brand),var(--brand2));
  color:#07101c;
}
.btn:hover{transform:translateY(-1px);transition:.15s ease}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.badge{
  font-size:12px;color:var(--text);
  padding:8px 10px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(0,0,0,.12);
}

.section{padding:18px 0 30px 0}
.section h2{margin:0 0 10px 0;font-size:22px}
.grid{display:grid;grid-template-columns: repeat(4, 1fr);gap:14px}
@media (max-width:980px){ .grid{grid-template-columns: repeat(2, 1fr);} }
@media (max-width:560px){ .grid{grid-template-columns: 1fr;} }

.plan{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding:16px;
  box-shadow: 0 8px 20px rgba(0,0,0,.18);
}
.plan .top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.plan h3{margin:0;font-size:18px}
.speed{color:var(--brand2);font-weight:800}
.price{margin-top:10px;font-size:20px;font-weight:800}
.jmd{color:var(--muted);font-weight:650;font-size:12px;margin-left:6px}
ul{margin:12px 0 0 18px;color:var(--muted);line-height:1.6}
hr{border:none;border-top:1px solid var(--line);margin:18px 0}

.split{display:grid;grid-template-columns: 1fr 1fr;gap:14px}
@media (max-width:920px){ .split{grid-template-columns:1fr} }

.form{
  display:grid; gap:10px;
}
label{font-size:13px;color:var(--muted)}
input,select,textarea{
  width:100%;
  background:rgba(255,255,255,.05);
  color:var(--text);
  border:1px solid var(--line);
  border-radius:14px;
  padding:12px 12px;
  outline:none;
}
textarea{min-height:110px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color: rgba(77,163,255,.65)}
.row{display:grid;grid-template-columns: 1fr 1fr;gap:10px}
@media (max-width:560px){ .row{grid-template-columns:1fr} }

.notice{
  font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:14px;
  padding:12px;
}
.success, .error{
  padding:12px;border-radius:14px;border:1px solid var(--line);
  background:rgba(53,224,183,.10);
  color:var(--text);
}
.error{background:rgba(255,77,77,.12)}
.footer{
  border-top:1px solid var(--line);
  padding:18px 0;
  color:var(--muted);
  font-size:13px;
}
.small-links{display:flex;gap:12px;flex-wrap:wrap}
.small-links a{color:var(--muted)}
.small-links a:hover{color:var(--text)}