:root {
  --bg: #05060a;
  --bg-alt: #0b0d14;
  --card: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f7f7fb;
  --text-secondary: rgba(247, 247, 251, 0.72);
  --accent: #6cf0ff;
  --accent-strong: #5c73ff;
  --gradient: linear-gradient(135deg, #1a1f3b 0%, #0e6f85 50%, #4d2b8c 100%);
  --radius-lg: 32px;
  --radius-md: 20px;
  --radius-sm: 14px;
  font-size: 16px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "HarmonyOS Sans", "PingFang SC", "Microsoft YaHei", "Segoe UI",
    -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(92, 115, 255, 0.24), transparent 45%),
    radial-gradient(circle at 80% 0%, rgba(108, 240, 255, 0.24), transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(255, 99, 149, 0.18), transparent 50%);
  pointer-events: none;
  z-index: -1;
}

.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cfilter id='n' x='0' y='0'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  z-index: 100;
}

h1,
h2,
h3 {
  margin: 0 0 0.6em;
  line-height: 1.2;
}

p {
  margin: 0 0 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

ul {
  padding-left: 1.2rem;
  color: var(--text-secondary);
}

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

.hero {
  min-height: 100vh;
  padding: 1rem clamp(1.5rem, 5vw, 6rem) 4rem;
  display: grid;
  grid-template-columns: minmax(320px, 1.1fr) minmax(320px, 520px);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  position: relative;
  isolation: isolate;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  grid-column: 1 / -1;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--text-primary);
  transition: opacity 0.2s ease;
}

.logo:hover {
  opacity: 0.8;
}

.logo__image {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
}

.nav__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0.8rem 1.4rem;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.nav__links a {
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: color 0.2s ease, opacity 0.2s ease;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--accent);
  opacity: 1;
}

.nav__toggle {
  display: none;
}

.hero__content {
  max-width: 640px;
  align-self: center;
}

.hero__eyebrow {
  letter-spacing: 0.5em;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
}

.hero__lead {
  font-size: 1.15rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.btn {
  border-radius: 999px;
  padding: 0.85rem 1.8rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform 0.2s ease, background 0.3s ease, border-color 0.3s ease;
}

.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--text-primary);
}

.btn:hover {
  transform: translateY(-3px);
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.2rem;
  margin-top: 3rem;
}

.metric__value {
  display: block;
  font-size: 1.65rem;
  font-weight: 600;
}

.metric__label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.hero__visual {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  justify-self: end;
  width: min(520px, 100%);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.7;
  animation: float 8s ease-in-out infinite;
}

.orb--one {
  width: 150px;
  height: 150px;
  background: #5c73ff;
  top: 25%;
  left: 25%;
}

.orb--two {
  width: 180px;
  height: 180px;
  background: #6cf0ff;
  bottom: 20%;
  right: 20%;
  animation-delay: -2s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

.hero__grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(4, 1fr);
  opacity: 0.2;
}

.grid__line {
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.section {
  padding: 5rem clamp(1.5rem, 5vw, 6rem);
}

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

.section--highlight {
  background: radial-gradient(circle at top right, rgba(108, 240, 255, 0.2), transparent),
    rgba(255, 255, 255, 0.02);
}

.section__header {
  max-width: 720px;
  margin-bottom: 3rem;
}

.section__eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.35em;
  color: rgba(255, 255, 255, 0.6);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.cards--services {
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.cards--services .card {
  padding: 3rem 2rem;
  min-height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cards--services .card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.cards--services .card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.2rem;
  position: relative;
  transition: transform 0.3s ease;
}

.service-icon svg {
  width: 100%;
  height: 100%;
  color: var(--accent);
  filter: drop-shadow(0 0 12px rgba(108, 240, 255, 0.3));
  transition: all 0.3s ease;
}

.cards--services .card:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
}

.cards--services .card:hover .service-icon svg {
  color: #fff;
  filter: drop-shadow(0 0 20px rgba(108, 240, 255, 0.6));
}

.cards--services .card h3 {
  margin: 0 0 0.8rem 0;
  font-size: 1.15rem;
  line-height: 1.6;
  font-weight: 600;
  position: relative;
  z-index: 1;
  letter-spacing: 0.02em;
}

.cards--services .card .service-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0;
  opacity: 0.8;
  letter-spacing: 0.05em;
}

.card,
.case-card {
  padding: 2rem;
  border-radius: var(--radius-md);
  background: var(--card);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(20px);
  min-height: 320px;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover,
.case-card:hover {
  border-color: rgba(108, 240, 255, 0.4);
  transform: translateY(-6px);
  box-shadow: 0 10px 30px rgba(108, 240, 255, 0.15);
}

.card ul,
.case-card ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.case-card {
  position: relative;
}

.case-card__tag {
  display: inline-flex;
  padding: 0.2rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.85rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

.case-card p {
  font-size: 0.9rem;
  line-height: 1.7;
}

.case-card ul li {
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 0.4rem;
}

.about {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: start;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  padding: 2rem;
  border-radius: var(--radius-md);
  background: rgba(92, 115, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.08);
  align-content: start;
}

.about__stats > div {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--accent);
  transition: all 0.3s ease;
}

.about__stats > div:hover {
  background: rgba(255, 255, 255, 0.06);
  transform: translateX(5px);
}

.about__stats .metric__value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
}

.about__stats .metric__label {
  display: none;
}

.contact {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  padding: 3rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(92, 115, 255, 0.35), rgba(108, 240, 255, 0.2));
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.contact__methods {
  display: grid;
  gap: 1rem;
  min-width: 240px;
}

.contact__item {
  padding: 1.2rem 1.5rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact__item a {
  display: inline-flex;
  font-weight: 600;
  color: var(--accent);
}

.contact__item--single {
  min-width: 280px;
}

.footer {
  padding: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
}

.footer p {
  margin: 0.5rem 0;
}

.footer .icp-link {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.2s ease;
  font-size: 0.9rem;
}

.footer .icp-link:hover {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: underline;
}

@media (max-width: 900px) {
  .about {
    grid-template-columns: 1fr;
  }
  
  .about__stats {
    grid-template-columns: 1fr;
  }
  
  .cards--services {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    width: 100%;
    justify-self: stretch;
  }

  .nav__links {
    position: absolute;
    top: 72px;
    right: 1.5rem;
    flex-direction: column;
    background: rgba(5, 6, 10, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    display: none;
  }

  .nav__links.open {
    display: flex;
  }

  .nav__toggle {
    display: inline-flex;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: transparent;
    position: relative;
  }

  .nav__toggle::before,
  .nav__toggle::after {
    content: "";
    position: absolute;
    left: 11px;
    right: 11px;
    height: 2px;
    background: #fff;
    transition: transform 0.3s ease;
  }

  .nav__toggle::before {
    top: 16px;
  }

  .nav__toggle::after {
    bottom: 16px;
  }

  .nav__toggle.open::before {
    transform: translateY(6px) rotate(45deg);
  }

  .nav__toggle.open::after {
    transform: translateY(-6px) rotate(-45deg);
  }
}

@media (max-width: 600px) {
  .hero {
    padding-top: 1.5rem;
  }

  .hero__metrics {
    grid-template-columns: 1fr;
  }

  .contact {
    padding: 2rem;
  }
}