:root {
  --bg: #0b1020;
  --bg2: #131a33;
  --card: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --brand: #6d5efc;
  --brand2: #00d27a;
  --wa: #25d366;
  --line: #e7eaf3;
  --radius: 16px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: #f6f7fb;
  -webkit-font-smoothing: antialiased;
}
.wrap { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* Topbar */
.topbar { position: sticky; top: 0; z-index: 30; background: rgba(11,16,32,.92); backdrop-filter: blur(8px); }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo { color: #fff; font-weight: 800; font-size: 20px; letter-spacing: .3px; }
.logo span { color: var(--brand2); }
.lang-switch { display: flex; gap: 4px; background: rgba(255,255,255,.12); border-radius: 999px; padding: 4px; }
.lang-switch button { border: 0; background: transparent; color: #cdd5ee; padding: 6px 14px; border-radius: 999px; cursor: pointer; font-size: 14px; font-weight: 600; }
.lang-switch button.active { background: #fff; color: var(--ink); }

/* Hero */
.hero {
  background: radial-gradient(1200px 500px at 80% -10%, #2a3a7a 0%, transparent 60%),
              linear-gradient(160deg, var(--bg) 0%, var(--bg2) 100%);
  color: #fff; padding: 64px 0 72px; text-align: center;
}
.hero h1 { font-size: clamp(28px, 5vw, 46px); line-height: 1.15; margin: 0 0 14px; font-weight: 800; }
.hero p { color: #c5cce6; font-size: clamp(15px, 2.4vw, 19px); margin: 0 auto 28px; max-width: 640px; }
.wa-btn {
  display: inline-flex; align-items: center; gap: 10px; background: var(--wa); color: #fff;
  text-decoration: none; font-weight: 700; font-size: 17px; padding: 14px 26px; border-radius: 999px;
  box-shadow: 0 10px 30px rgba(37,211,102,.4); transition: transform .15s ease, box-shadow .15s ease;
}
.wa-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(37,211,102,.5); }
.wa-note { margin-top: 14px !important; color: #9fb0d8 !important; font-size: 14px !important; }
.tut-btn { margin-top: 16px; background: rgba(255,255,255,.14); color: #fff; border: 1px solid rgba(255,255,255,.4); border-radius: 999px; padding: 11px 24px; font-size: 15px; font-weight: 600; cursor: pointer; }
.tut-btn:hover { background: rgba(255,255,255,.26); }

.tut-steps { margin: 0; padding-left: 0; list-style: none; counter-reset: step; }
.tut-steps li { position: relative; padding: 0 0 18px 44px; counter-increment: step; }
.tut-steps li:last-child { padding-bottom: 0; }
.tut-steps li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 28px; height: 28px; border-radius: 50%; background: linear-gradient(135deg, var(--brand), var(--brand2)); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; }
.tut-steps .tstep-text { font-size: 15px; line-height: 1.6; color: #1f2937; }

/* Content blocks */
.content { padding: 48px 20px 64px; }
.block { margin-bottom: 52px; }
.block h2 { font-size: clamp(22px, 3.4vw, 30px); margin: 0 0 22px; text-align: center; font-weight: 800; }

/* Prices */
.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.price-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
  box-shadow: 0 8px 24px rgba(15,23,42,.05); text-align: center; position: relative; overflow: hidden;
}
.price-card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: linear-gradient(90deg, var(--brand), var(--brand2)); }
.price-card .pimg { margin: 4px 0 14px; }
.price-card .pimg img { width: 100%; height: 150px; object-fit: cover; border-radius: 12px; display: block; }
.price-card .label { font-weight: 700; font-size: 18px; margin-bottom: 6px; }
.price-card .face { color: var(--muted); font-size: 14px; }
.price-card .buy { margin-top: 14px; }
.price-card .buy .amt { font-size: 34px; font-weight: 800; color: var(--brand2); }
.price-card .buy .cur { font-size: 15px; color: var(--muted); margin-left: 4px; }
.price-card .buy .cap { display: block; font-size: 13px; color: var(--muted); margin-top: 2px; }

/* Features */
.features { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap: 14px; }
.features li {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px 18px 50px;
  position: relative; font-size: 16px; font-weight: 600; box-shadow: 0 6px 18px rgba(15,23,42,.04);
}
.features li::before {
  content: "✓"; position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  width: 22px; height: 22px; border-radius: 50%; background: var(--brand2); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 800;
}

/* Gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.gallery figure { margin: 0; background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; box-shadow: 0 6px 18px rgba(15,23,42,.05); }
.gallery img { width: 100%; height: 180px; object-fit: cover; display: block; }
.gallery figcaption { padding: 10px 12px; font-size: 13px; color: var(--muted); }

/* Footer */
.footer { background: var(--bg); color: #93a0c4; text-align: center; padding: 28px 0; font-size: 14px; }

/* Floating WhatsApp */
.wa-fab {
  position: fixed; right: 18px; bottom: 18px; z-index: 40; width: 58px; height: 58px; border-radius: 50%;
  background: var(--wa); color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 28px rgba(37,211,102,.5); text-decoration: none;
}
.wa-fab:hover { transform: scale(1.05); }

@media (max-width: 600px) {
  .hero { padding: 44px 0 52px; }
  .content { padding: 32px 16px 48px; }
}