:root {
  --bg: #07100d;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.14);
  --text: #f4fbf8;
  --muted: #a8b7b0;
  --line: rgba(255, 255, 255, 0.16);
  --green: #38e087;
  --teal: #36d4ce;
  --amber: #f0b35a;
  --ink: #0b1511;
  font-family: Inter, "Segoe UI", Arial, "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background: var(--bg);
}

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

.intro {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background:
    linear-gradient(115deg, rgba(54, 212, 206, 0.18), transparent 44%),
    radial-gradient(circle at center, rgba(56, 224, 135, 0.16), transparent 34%),
    #06110d;
  animation: intro-hide 3.3s ease forwards;
}

.intro__mark {
  display: grid;
  width: min(42vw, 260px);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 80px rgba(56, 224, 135, 0.32);
  clip-path: polygon(14% 0, 100% 0, 86% 100%, 0 100%);
  animation: mark-enter 2.25s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.intro__mark span {
  font-size: clamp(3.75rem, 13vw, 8rem);
  font-weight: 800;
  letter-spacing: 0;
}

.intro__line {
  position: absolute;
  width: min(60vw, 520px);
  height: 2px;
  margin-top: min(48vw, 310px);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.14);
}

.intro__line::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, transparent, var(--green), var(--teal), transparent);
  animation: line-scan 1.8s ease-in-out infinite;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 24px clamp(20px, 5vw, 72px);
  background: linear-gradient(180deg, rgba(7, 16, 13, 0.86), rgba(7, 16, 13, 0));
  opacity: 0;
  transform: translateY(-18px);
  animation: page-in 0.8s ease 3.05s forwards;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand__symbol,
.footer__logo {
  display: inline-grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.1);
  color: var(--green);
  font-size: 0.95rem;
  font-weight: 800;
  clip-path: polygon(18% 0, 100% 0, 82% 100%, 0 100%);
}

.brand__text {
  font-size: 0.95rem;
  font-weight: 700;
  white-space: nowrap;
}

.nav {
  display: flex;
  gap: clamp(14px, 2.8vw, 34px);
  align-items: center;
  color: rgba(244, 251, 248, 0.78);
  font-size: 0.95rem;
}

.nav a {
  transition: color 180ms ease;
}

.nav a:hover {
  color: var(--green);
}

.hero {
  position: relative;
  display: grid;
  min-height: 92vh;
  align-items: center;
  padding: 144px clamp(20px, 5vw, 72px) 88px;
  overflow: hidden;
  isolation: isolate;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 24%;
  content: "";
  background: linear-gradient(180deg, transparent, var(--bg));
  pointer-events: none;
  z-index: -1;
}

.hero__visual {
  position: absolute;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background:
    linear-gradient(120deg, rgba(7, 16, 13, 0.96) 0%, rgba(7, 16, 13, 0.72) 45%, rgba(18, 44, 40, 0.78) 100%),
    radial-gradient(circle at 80% 28%, rgba(54, 212, 206, 0.28), transparent 32%),
    radial-gradient(circle at 28% 78%, rgba(240, 179, 90, 0.14), transparent 28%);
}

.grid-layer {
  position: absolute;
  inset: -2px;
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 78%, transparent);
  animation: grid-drift 18s linear infinite;
}

.orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(1px);
}

.orb--one {
  top: 18%;
  right: 10%;
  width: min(34vw, 360px);
  aspect-ratio: 1;
  border: 1px solid rgba(54, 212, 206, 0.45);
  box-shadow: inset 0 0 60px rgba(54, 212, 206, 0.18), 0 0 80px rgba(54, 212, 206, 0.18);
  animation: float-one 8s ease-in-out infinite;
}

.orb--two {
  right: 28%;
  bottom: 18%;
  width: min(22vw, 220px);
  aspect-ratio: 1;
  border: 1px solid rgba(240, 179, 90, 0.35);
  box-shadow: inset 0 0 48px rgba(240, 179, 90, 0.12);
  animation: float-two 9s ease-in-out infinite;
}

.signal {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(56, 224, 135, 0.9), transparent);
  opacity: 0.72;
}

.signal--one {
  top: 34%;
  right: -8%;
  width: 48vw;
  transform: rotate(-22deg);
  animation: signal-slide 4.6s ease-in-out infinite;
}

.signal--two {
  right: 12%;
  bottom: 30%;
  width: 36vw;
  transform: rotate(16deg);
  animation: signal-slide 5.4s ease-in-out 1s infinite;
}

.data-card {
  position: absolute;
  display: grid;
  min-width: 152px;
  gap: 8px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(8, 21, 17, 0.72);
  box-shadow: 0 22px 80px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(16px);
}

.data-card span {
  color: var(--muted);
  font-size: 0.82rem;
}

.data-card strong {
  color: var(--text);
  font-size: 1.7rem;
}

.data-card--one {
  top: 25%;
  right: 18%;
  animation: card-in 0.9s ease 3.45s both, float-one 8s ease-in-out 4.2s infinite;
}

.data-card--two {
  right: 8%;
  bottom: 23%;
  animation: card-in 0.9s ease 3.65s both, float-two 9s ease-in-out 4.4s infinite;
}

.hero__content {
  width: min(690px, 100%);
  opacity: 0;
  transform: translateY(24px);
  animation: page-in 0.9s ease 3.18s forwards;
}

.eyebrow {
  margin: 0 0 20px;
  color: var(--green);
  font-size: clamp(0.78rem, 2.3vw, 0.95rem);
  font-weight: 800;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(5rem, 16vw, 12.5rem);
  line-height: 0.82;
  font-weight: 900;
  letter-spacing: 0;
}

.hero__subtitle {
  margin: 18px 0 0;
  color: rgba(244, 251, 248, 0.88);
  font-size: clamp(1.25rem, 4vw, 2.6rem);
  font-weight: 700;
}

.hero__copy {
  width: min(560px, 100%);
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  font-weight: 800;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  border-color: transparent;
  background: var(--green);
  color: var(--ink);
}

.button--ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.content-band,
.services,
.pricing {
  padding: 88px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
}

.content-band {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: start;
}

.section-heading p {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.placeholder-text {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.9;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.service-card {
  min-height: 218px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.service-card span {
  color: var(--amber);
  font-size: 0.86rem;
  font-weight: 800;
}

.service-card h3 {
  margin: 34px 0 12px;
  font-size: 1.35rem;
}

.service-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.pricing {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: stretch;
  background:
    linear-gradient(90deg, rgba(56, 224, 135, 0.08), transparent 42%),
    rgba(255, 255, 255, 0.02);
}

.price-panel {
  display: grid;
  grid-template-columns: minmax(180px, 0.82fr) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid rgba(56, 224, 135, 0.28);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 22px 80px rgba(0, 0, 0, 0.22);
}

.price-panel__label,
.price-panel__tax {
  margin: 0;
  color: var(--muted);
}

.price-panel__price {
  margin: 10px 0 4px;
  color: var(--text);
  font-size: clamp(3.2rem, 8vw, 5.8rem);
  line-height: 0.95;
  font-weight: 900;
}

.price-panel__list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  color: var(--text);
  list-style: none;
}

.price-panel__list li {
  position: relative;
  padding-left: 24px;
  line-height: 1.6;
}

.price-panel__list li::before {
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--green);
  content: "";
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 36px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer > div {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer p {
  margin: 0;
}

.footer a {
  color: var(--text);
}

@keyframes intro-hide {
  0%,
  74% {
    visibility: visible;
    opacity: 1;
  }
  100% {
    visibility: hidden;
    opacity: 0;
  }
}

@keyframes mark-enter {
  0% {
    opacity: 0;
    transform: scale(0.86) rotate(-8deg);
  }
  42% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
  72% {
    transform: scale(1) rotate(0deg);
  }
  100% {
    transform: scale(1.08) rotate(0deg);
  }
}

@keyframes line-scan {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

@keyframes page-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes grid-drift {
  to {
    transform: translate3d(72px, 72px, 0);
  }
}

@keyframes float-one {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(-16px, 18px, 0);
  }
}

@keyframes float-two {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(18px, -14px, 0);
  }
}

@keyframes signal-slide {
  0%,
  100% {
    opacity: 0.15;
    filter: blur(0);
  }
  45% {
    opacity: 0.9;
    filter: blur(0.5px);
  }
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .intro {
    display: none;
  }

  .site-header,
  .hero__content {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    gap: 18px;
    flex-direction: column;
    padding-top: 18px;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .brand__text {
    white-space: normal;
  }

  .hero {
    min-height: 94vh;
    padding-top: 178px;
  }

  .data-card--one {
    top: auto;
    right: 20px;
    bottom: 160px;
  }

  .data-card--two {
    display: none;
  }

  .orb--one {
    top: 34%;
    right: -34%;
    width: 420px;
  }

  .orb--two {
    right: 44%;
    bottom: 12%;
    width: 190px;
  }

  .content-band {
    grid-template-columns: 1fr;
  }

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

  .price-panel {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 520px) {
  .nav {
    gap: 10px;
    font-size: 0.84rem;
  }

  .brand__symbol,
  .footer__logo {
    width: 42px;
    height: 42px;
    font-size: 0.82rem;
  }

  .hero {
    padding-bottom: 64px;
  }

  .hero h1 {
    font-size: clamp(4.35rem, 26vw, 7.5rem);
  }

  .hero__actions,
  .button {
    width: 100%;
  }

  .data-card {
    display: none;
  }

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