:root {
  --bg: #0b0e1a;
  --bg-soft: #11152a;
  --card: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.09);
  --text: #e8ebf5;
  --text-dim: #9aa3c0;
  --accent: #6c8cff;
  --accent2: #9d6cff;
  --green: #34d399;
  --radius: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC", "Helvetica Neue", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- Nav ---------- */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11, 14, 26, 0.8);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--card-border);
}
.nav-inner {
  max-width: 1080px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--text); text-decoration: none;
  font-weight: 700; font-size: 17px;
}
.nav-brand img { width: 28px; height: 28px; border-radius: 7px; }
.nav-links { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: 14px; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent2)) !important;
  color: #fff !important; padding: 7px 16px; border-radius: 20px; font-weight: 600;
}
.lang-switch button {
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text-dim); padding: 4px 12px; border-radius: 14px;
  font-size: 12px; cursor: pointer; margin-left: 6px;
}
.lang-switch button.on { color: #fff; background: var(--accent); border-color: var(--accent); }

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 90px 24px 60px; }
.hero-icon { width: 96px; height: 96px; border-radius: 24px; box-shadow: 0 20px 60px rgba(108,140,255,.35); }
.hero-badge {
  display: inline-block; margin-top: 26px; padding: 5px 16px;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 20px; font-size: 13px; color: var(--text-dim);
}
.hero h1 { font-size: 44px; line-height: 1.2; margin-top: 18px; font-weight: 800; }
.hero h1 .accent {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub { max-width: 640px; margin: 18px auto 0; color: var(--text-dim); font-size: 17px; }
.hero-actions { margin-top: 34px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 30px; border-radius: 26px;
  text-decoration: none; font-weight: 600; font-size: 15px; transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; box-shadow: 0 10px 30px rgba(108,140,255,.35);
}
.btn-ghost { background: var(--card); border: 1px solid var(--card-border); color: var(--text); }
.hero-note { margin-top: 18px; font-size: 13px; color: var(--text-dim); }

/* ---------- Sections ---------- */
section { padding: 70px 0; }
.section-alt { background: var(--bg-soft); }
.section-title { text-align: center; font-size: 32px; font-weight: 800; }
.section-sub { text-align: center; color: var(--text-dim); margin-top: 10px; }

.grid {
  margin-top: 46px; display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px;
}
.card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 28px;
  transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(108,140,255,.4); }
.card .icon { font-size: 30px; }
.card h3 { margin-top: 14px; font-size: 17px; }
.card p { margin-top: 8px; color: var(--text-dim); font-size: 14px; }

/* ---------- Screenshots ---------- */
.shots { display: grid; gap: 28px; margin-top: 46px; }
.shots figure {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); overflow: hidden;
}
.shots img { width: 100%; display: block; }
.shots figcaption {
  padding: 12px 18px; font-size: 13px; color: var(--text-dim);
  border-top: 1px solid var(--card-border);
}
.shots-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
@media (max-width: 800px) { .shots-pair { grid-template-columns: 1fr; } }

/* ---------- Download ---------- */
.dl-box {
  margin: 46px auto 0; max-width: 560px; text-align: center;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 40px;
}
.dl-box .ver { color: var(--green); font-size: 13px; font-weight: 600; }
.dl-meta { margin-top: 14px; color: var(--text-dim); font-size: 13px; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--card-border); padding: 34px 0;
  color: var(--text-dim); font-size: 13px; text-align: center;
}
footer a { color: var(--text-dim); }
footer a:hover { color: var(--text); }

/* ---------- FAQ / docs ---------- */
.faq-item {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 22px 26px; margin-top: 16px;
}
.faq-item h3 { font-size: 15px; }
.faq-item p { margin-top: 8px; color: var(--text-dim); font-size: 14px; }
.doc h2 { font-size: 22px; margin-top: 40px; }
.doc p, .doc li { color: var(--text-dim); font-size: 15px; margin-top: 10px; }
.doc ul { padding-left: 22px; }