:root {
  --bg: #070b16;
  --panel: rgba(17, 24, 39, 0.66);
  --line: rgba(255, 255, 255, 0.12);
  --text: #e6edf7;
  --muted: #9db0c8;
  --cyan: #37d7ff;
  --purple: #8b5cf6;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Inter", "Segoe UI", "Microsoft YaHei", sans-serif;
  background: radial-gradient(circle at 20% 10%, #13203f 0%, var(--bg) 40%);
  color: var(--text);
}

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(500px 300px at 10% 20%, rgba(55, 215, 255, 0.2), transparent 70%),
    radial-gradient(600px 320px at 90% 10%, rgba(139, 92, 246, 0.2), transparent 70%);
  z-index: -1;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(7, 11, 22, 0.72);
  border-bottom: 1px solid var(--line);
  z-index: 20;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.8px;
  display: inline-flex;
  align-items: center;
}

.logo span {
  color: var(--cyan);
  margin-left: 6px;
}

nav {
  display: flex;
  gap: 16px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

nav a {
  color: #c8d6e8;
  font-size: 0.95rem;
}

.hero {
  padding: 84px 0 44px;
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 420px);
  gap: 26px;
  align-items: center;
}

.hero-left {
  min-width: 0;
}

.hero-right {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.hero-logo {
  width: min(100%, 390px);
  height: auto;
  display: block;
}

.support-top {
  margin-bottom: 8px;
}

.badge {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #c4d9ff;
  font-size: 0.86rem;
  background: rgba(255, 255, 255, 0.03);
}

h1 {
  margin: 16px 0;
  font-size: clamp(2rem, 5vw, 3.45rem);
  line-height: 1.13;
}

.subtitle {
  max-width: 740px;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

.hero-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
}

.btn {
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 600;
  border: 1px solid var(--line);
  transition: 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan), #5fa4ff);
  color: #08101d;
}

.btn-primary:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.btn-ghost {
  color: #dce9ff;
  background: rgba(255, 255, 255, 0.04);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.kpis {
  margin-top: 32px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-column: 1 / -1;
}

.kpis article {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  background: var(--panel);
}

.kpis h3 {
  margin: 0 0 4px;
  color: #fff;
}

.kpis p {
  margin: 0;
  color: var(--muted);
}

.section {
  padding: 52px 0;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.section > p {
  color: var(--muted);
  max-width: 860px;
  line-height: 1.7;
}

.grid {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  background: var(--panel);
}

.card h3 {
  margin-top: 0;
}

.card p,
.card li {
  color: var(--muted);
  line-height: 1.65;
}

.card ul {
  margin: 0;
  padding-left: 18px;
}

.neon {
  box-shadow: inset 0 0 0 1px rgba(55, 215, 255, 0.12), 0 0 25px rgba(55, 215, 255, 0.08);
}

.legal-links {
  margin-top: 14px;
}

.legal-links span {
  opacity: 0.5;
  margin: 0 6px;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
  background: rgba(5, 8, 16, 0.72);
}

.footer-wrap {
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.footer-wrap p {
  margin: 0;
  color: #9eb0c8;
}

.footer-wrap div {
  display: flex;
  gap: 14px;
}

.legal-page {
  padding: 60px 0 80px;
}

.legal-page .card {
  margin-top: 18px;
}

@media (max-width: 920px) {
  .grid.two,
  .grid.three,
  .kpis {
    grid-template-columns: 1fr;
  }

  .hero-split {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .hero-right {
    justify-content: flex-start;
  }

  .hero-logo {
    width: min(100%, 300px);
  }

  nav {
    display: none;
  }
}