:root{
  --bg:#071a1e;
  --bg2:#0b262c;
  --card:#0f3138;
  --muted:#9ad5dd;
  --text:#e8fbff;
  --accent:#27d3c2;
  --accent2:#4ee6d8;
  --line:rgba(154,213,221,.18);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 16px;
  --max: 1120px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font);
  background: radial-gradient(1200px 800px at 20% 0%, #0f3b44 0%, var(--bg) 50%, #061417 100%);
  color:var(--text);
  line-height:1.5;
}
a{color:var(--accent); text-decoration:none}
a:hover{color:var(--accent2)}
.container{max-width:var(--max); margin:0 auto; padding:0 20px}
.topbar{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(10px);
  background: rgba(7,26,30,.72);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
  gap:16px;
}
.brand{
  display:flex; align-items:center; gap:12px; min-width:220px;
}
.logo{
  width:38px; height:38px; border-radius:12px;
  background: linear-gradient(135deg, rgba(39,211,194,.9), rgba(39,211,194,.15));
  border:1px solid rgba(39,211,194,.35);
  box-shadow: 0 8px 24px rgba(39,211,194,.12);
  display:grid; place-items:center;
  font-weight:800; letter-spacing:.5px;
}
.brand h1{font-size:16px; margin:0; line-height:1.1}
.brand small{display:block; color:var(--muted); font-size:12px}
.navlinks{display:flex; gap:14px; flex-wrap:wrap; align-items:center; justify-content:flex-end}
.navlinks a{
  padding:9px 10px; border-radius:10px;
  color:var(--text);
  border:1px solid transparent;
}
.navlinks a:hover{border-color:var(--line); background: rgba(255,255,255,.03)}
.pill{
  padding:9px 12px; border-radius:999px;
  border:1px solid rgba(39,211,194,.35);
  background: rgba(39,211,194,.10);
  color: var(--text);
}
.pill:hover{background: rgba(39,211,194,.16)}
.langswitch{
  display:flex; gap:8px; align-items:center;
}
.langswitch button{
  cursor:pointer;
  padding:8px 10px; border-radius:10px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--text);
}
.langswitch button.active{
  border-color: rgba(39,211,194,.6);
  background: rgba(39,211,194,.12);
}
.hero{
  padding:64px 0 26px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.3fr .7fr;
  gap:22px;
  align-items:stretch;
}
.kicker{
  display:inline-flex; gap:10px; align-items:center;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding:8px 12px; border-radius:999px;
  color: var(--muted);
  font-size:13px;
}
.kicker b{color:var(--text)}
.hero h2{
  margin:16px 0 10px;
  font-size:44px;
  line-height:1.06;
  letter-spacing:-.02em;
}
.hero p{
  margin:0;
  color: rgba(232,251,255,.86);
  font-size:18px;
  max-width: 62ch;
}
.cta-row{display:flex; gap:12px; flex-wrap:wrap; margin-top:18px}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  border-radius: 12px;
  padding:12px 14px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--text);
  cursor:pointer;
}
.btn.primary{
  border-color: rgba(39,211,194,.45);
  background: linear-gradient(135deg, rgba(39,211,194,.18), rgba(255,255,255,.03));
}
.btn:hover{background: rgba(255,255,255,.06)}
.card{
  background: rgba(15,49,56,.72);
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-card{
  padding:18px;
  display:flex; flex-direction:column; gap:12px;
}
.hero-card h3{margin:0; font-size:16px}
.hero-card ul{margin:0; padding-left:18px; color: rgba(232,251,255,.86)}
.hero-card li{margin:6px 0}
.section{padding:34px 0}
.section h3{
  margin:0 0 14px;
  font-size:24px;
  letter-spacing:-.01em;
}
.grid4{
  display:grid; gap:14px;
  grid-template-columns: repeat(4, 1fr);
}
.grid3{
  display:grid; gap:14px;
  grid-template-columns: repeat(3, 1fr);
}
.feature{
  padding:16px;
}
.feature h4{margin:0 0 8px; font-size:16px}
.feature p{margin:0; color: rgba(232,251,255,.82)}
.badge{
  display:inline-flex; align-items:center; gap:8px;
  color: var(--muted);
  font-size:13px;
  margin-top:8px;
}
.steps{
  display:grid; gap:12px;
  grid-template-columns: repeat(4, 1fr);
}
.step{
  padding:14px;
}
.step b{display:block; margin-bottom:6px}
hr.sep{
  border:0; border-top:1px solid var(--line);
  margin:0;
}
.split{
  display:grid; gap:16px;
  grid-template-columns: 1fr 1fr;
  align-items:start;
}
.faq details{
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px 12px;
  background: rgba(255,255,255,.02);
  margin-bottom:10px;
}
.faq summary{
  cursor:pointer;
  font-weight:650;
}
.faq p{margin:10px 0 0; color: rgba(232,251,255,.84)}
.form{
  padding:16px;
}
.form label{display:block; font-size:13px; color: var(--muted); margin:10px 0 6px}
.form input, .form select, .form textarea{
  width:100%;
  border-radius:12px;
  border:1px solid rgba(154,213,221,.22);
  background: rgba(0,0,0,.18);
  color: var(--text);
  padding:11px 12px;
  outline:none;
}
.form textarea{min-height:120px; resize:vertical}
.form .row2{
  display:grid; gap:12px; grid-template-columns: 1fr 1fr;
}
.form .hint{color: rgba(232,251,255,.7); font-size:12px; margin-top:8px}
.form .actions{display:flex; gap:10px; flex-wrap:wrap; margin-top:12px}
.notice{
  border:1px dashed rgba(154,213,221,.35);
  padding:12px;
  border-radius:12px;
  color: rgba(232,251,255,.85);
  background: rgba(255,255,255,.02);
}
.footer{
  padding:26px 0 34px;
  color: rgba(232,251,255,.7);
  font-size:13px;
}
.footer a{color: rgba(232,251,255,.82)}
.footer a:hover{color: var(--accent2)}
.bloglist a{display:block; padding:12px; border-radius:12px; border:1px solid var(--line); background: rgba(255,255,255,.02); margin-bottom:10px}
.bloglist a:hover{background: rgba(255,255,255,.05)}
.article{padding:18px}
.article h2{margin:0 0 10px; font-size:32px}
.article .meta{color: var(--muted); font-size:13px; margin-bottom:14px}
.article h3{margin-top:18px}
@media (max-width: 980px){
  .hero-grid{grid-template-columns: 1fr}
  .grid4{grid-template-columns: 1fr 1fr}
  .grid3{grid-template-columns: 1fr}
  .steps{grid-template-columns: 1fr 1fr}
  .split{grid-template-columns: 1fr}
  .brand{min-width:auto}
}
@media (max-width: 520px){
  .hero h2{font-size:34px}
  .grid4{grid-template-columns: 1fr}
  .steps{grid-template-columns: 1fr}
  .navlinks{display:none}
}