:root {
  --bg: #0b1020;
  --bg-soft: #121933;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.12);
  --text: #eff2ff;
  --muted: #a9b2d0;
  --accent: #7c9cff;
  --accent-strong: #5e7eff;
  --white: #ffffff;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top, rgba(124, 156, 255, 0.22), transparent 28%),
    linear-gradient(180deg, #0a0f1f 0%, #08101b 100%);
  color: var(--text);
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

code {
  padding: 2px 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  font-family: inherit;
}

img {
  max-width: 100%;
}

.container {
  width: min(calc(100% - 40px), 1200px);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(8, 16, 27, 0.62);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #9dd4ff);
  color: #08101b;
  font-weight: 800;
}

.nav-links {
  display: flex;
  gap: 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

.lang-switch {
  display: inline-flex;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

.lang-button {
  min-width: 58px;
  min-height: 36px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
}

.lang-button.is-active {
  background: rgba(124, 156, 255, 0.18);
  color: var(--white);
}

.nav-links a:hover,
.nav-links a:focus-visible,
.text-link:hover,
.text-link:focus-visible {
  color: var(--white);
}

.hero {
  padding: 92px 0 72px;
}

.hero-grid,
.split-grid {
  display: grid;
  grid-template-columns: 1.22fr 0.78fr;
  gap: 40px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: #97a9f9;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(1.8rem, 3.4vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.18rem;
}

.hero-text,
.section-head p,
.info-card p,
.product-card p,
.advantages-list p,
.timeline-item p,
.cta-card p,
.contact-note {
  color: var(--muted);
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #08101b;
  box-shadow: 0 16px 40px rgba(94, 126, 255, 0.32);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero-metrics li,
.panel-card,
.info-card,
.product-card,
.timeline-item,
.cta-card {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-metrics li {
  padding: 18px;
  border-radius: var(--radius-sm);
}

.hero-metrics strong,
.timeline-item span {
  display: block;
  margin-bottom: 4px;
}

.hero-metrics span {
  color: var(--muted);
  font-size: 0.92rem;
}

.hero-panel {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
}

.panel-glow {
  position: absolute;
  inset: 10% 12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 156, 255, 0.45), transparent 65%);
  filter: blur(28px);
}

.panel-card {
  position: relative;
  width: min(100%, 460px);
  padding: 28px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.04));
}

.panel-label {
  margin-bottom: 24px;
  color: #9eb3ff;
  font-weight: 700;
}

.panel-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.panel-item:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.panel-item span {
  color: var(--muted);
}

.section {
  padding: 88px 0;
}

.section-dark {
  background: rgba(255, 255, 255, 0.02);
}

.section-head {
  max-width: 100%;
  margin-bottom: 36px;
}

.card-grid,
.product-grid {
  display: grid;
  gap: 20px;
}

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

.info-card,
.product-card {
  padding: 24px;
  border-radius: var(--radius-md);
}

.product-media {
  margin: -8px -8px 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.product-media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.tag {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(124, 156, 255, 0.14);
  color: #adc0ff;
  font-size: 0.82rem;
  font-weight: 600;
}

.product-card ul {
  margin: 0 0 18px;
  padding-left: 18px;
  color: var(--muted);
}

.text-link {
  color: #bfcdfd;
  font-weight: 600;
}

.advantages-list {
  display: grid;
  gap: 22px;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px 24px;
  border-radius: var(--radius-md);
}

.timeline-item span {
  color: #9eb3ff;
  font-size: 1.4rem;
  font-weight: 800;
}

.cta-section {
  padding-top: 16px;
}

.cta-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  padding: 34px;
  border-radius: 32px;
}

.contact-note {
  margin: 0;
  font-size: 0.92rem;
}

.site-footer {
  padding: 28px 0 42px;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 980px) {
  .hero-grid,
  .split-grid,
  .cta-card,
  .three-columns,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    min-height: auto;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav {
    align-items: flex-start;
    gap: 16px;
    padding: 18px 0;
    flex-direction: column;
  }

  .nav-actions {
    width: 100%;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 14px;
  }

  .hero {
    padding-top: 56px;
  }

  h1 {
    font-size: 1.55rem;
  }

  h2 {
    font-size: 1.22rem;
  }

  .section {
    padding: 72px 0;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .footer-row {
    flex-direction: column;
    align-items: flex-start;
  }
}