:root {
  --bg: #0b0c10;
  --card: #111217;
  --text: #e6e6ea;
  --muted: #a3a3ad;
  --brand: #5cc8ff;
  --brand-2: #ff7ab6;
  --accent: #2dd4bf;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', Arial, 'Noto Sans', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% -20%, #18202a 0%, #0b0c10 60%),
              radial-gradient(1200px 600px at 90% 120%, #1a1320 0%, #0b0c10 60%),
              var(--bg);
}

.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }

.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: saturate(180%) blur(8px); background: rgba(11,12,16,0.6); border-bottom: 1px solid rgba(255,255,255,0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { color: var(--text); font-weight: 800; text-decoration: none; letter-spacing: .5px; display: flex; align-items: center; gap: 8px; }
.logo-img { height: 32px; width: auto; }

.nav-toggle { display: none; background: transparent; color: var(--text); font-size: 22px; border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; padding: 6px 10px; }
.nav-list { list-style: none; display: flex; gap: 20px; margin: 0; padding: 0; align-items: center; }
.nav-list a { color: var(--text); text-decoration: none; opacity: .9; }
.nav-list a:hover { color: var(--brand); }

.header-actions { display: flex; align-items: center; gap: 10px; }
.search { display: flex; align-items: center; gap: 6px; background: var(--card); border: 1px solid rgba(255,255,255,0.08); border-radius: 10px; padding: 4px 6px; }
.search-input { background: transparent; border: none; color: var(--text); outline: none; width: 180px; }
.search-btn { background: transparent; border: none; color: var(--text); cursor: pointer; }
.icon-btn { position: relative; text-decoration: none; color: var(--text); font-size: 18px; }
.badge { position: absolute; top: -6px; right: -8px; background: var(--brand-2); color: #0b0c10; font-weight: 800; border-radius: 999px; height: 16px; min-width: 16px; padding: 0 4px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; }
.lang-toggle { border: 1px solid rgba(255,255,255,0.12); background: transparent; color: var(--text); border-radius: 8px; height: 36px; padding: 0 10px; cursor: pointer; }
.btn.small { height: 36px; padding: 0 12px; }

.section { padding: 72px 0; }
.section.alt { background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.0)); }
.section-title { font-size: 28px; margin: 0 0 24px; }

.hero { padding: 96px 0 72px; text-align: center; }
.hero-title { font-size: clamp(32px, 4vw, 56px); margin: 0 0 12px; letter-spacing: .2px; }
.hero-subtitle { color: var(--muted); margin: 0 0 24px; font-size: 18px; }

.hero-cta { display: inline-flex; gap: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 16px; border-radius: 10px; border: 1px solid rgba(255,255,255,0.12); text-decoration: none; color: var(--text); }
.btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #0b0c10; border: none; font-weight: 700; }
.btn-secondary { background: transparent; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: 14px; padding: 18px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }

.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-item { background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: 14px; padding: 18px; }
.grid-item h3 { margin: 0 0 8px; font-size: 18px; }
.grid-item p { margin: 0; color: var(--muted); }

.contact-list { margin: 0; padding-left: 18px; color: var(--muted); }
.contact-list a { color: var(--brand); text-decoration: none; }
.contact-list a:hover { color: var(--brand-2); text-decoration: underline; }

.site-footer { border-top: 1px solid rgba(255,255,255,0.06); padding: 20px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.back-to-top { color: var(--text); text-decoration: none; border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; padding: 6px 10px; }
.back-to-top:hover { color: var(--brand); }

@media (max-width: 960px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .header-inner { height: 60px; }
  .nav-toggle { display: inline-flex; }
  .nav-list { display: none; position: absolute; right: 20px; top: 60px; background: var(--card); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 10px; flex-direction: column; gap: 10px; min-width: 160px; }
  .nav-list.open { display: flex; }
  .hero { padding: 80px 0 56px; }
  .cards { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; }
}