:root {
  --bg: #05080d;
  --bg-2: #08111a;
  --ink: #f4fbff;
  --text: #c8d7de;
  --muted: #7d929c;
  --line: rgba(141, 243, 255, 0.16);
  --panel: rgba(9, 21, 31, 0.72);
  --cyan: #44e8ff;
  --emerald: #32f2a1;
  --amber: #ffbd58;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(68, 232, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(68, 232, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 78% 12%, rgba(68, 232, 255, 0.2), transparent 34vw),
    radial-gradient(circle at 18% 36%, rgba(50, 242, 161, 0.14), transparent 28vw),
    linear-gradient(180deg, #07111a 0%, var(--bg) 44%, #030508 100%);
  background-size: 56px 56px, 56px 56px, auto, auto, auto;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", sans-serif;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.08), transparent 22%),
    radial-gradient(circle at center, transparent 0, rgba(0, 0, 0, 0.48) 78%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  padding: 0 clamp(20px, 5vw, 76px);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 8, 13, 0.76);
  backdrop-filter: blur(20px);
}

.brand,
.nav,
.hero-actions,
.stats {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-size: 18px;
  font-weight: 850;
  letter-spacing: 0;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(68, 232, 255, 0.5);
  border-radius: 8px;
  object-fit: cover;
  background: #07111a;
  box-shadow: 0 0 34px rgba(68, 232, 255, 0.32);
}

.nav {
  gap: clamp(14px, 3vw, 34px);
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
}

.nav a {
  opacity: 0.78;
}

.nav a:hover {
  color: var(--cyan);
  opacity: 1;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(320px, 1.16fr);
  align-items: center;
  gap: clamp(28px, 5vw, 76px);
  min-height: calc(100vh - 74px);
  padding: clamp(50px, 7vw, 98px) clamp(20px, 5vw, 76px) clamp(44px, 6vw, 70px);
}

.hero-copy {
  max-width: 690px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(58px, 10vw, 122px);
  line-height: 0.92;
  font-weight: 950;
  text-shadow: 0 0 34px rgba(68, 232, 255, 0.16);
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 5vw, 58px);
  line-height: 1.08;
}

h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

.hero-text,
.intro p,
.scene-list p,
.feature-card p,
.cta p {
  color: var(--text);
  line-height: 1.85;
}

.hero-text {
  max-width: 650px;
  margin-bottom: 32px;
  font-size: clamp(18px, 2vw, 22px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 900;
  white-space: nowrap;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 13px;
  margin-bottom: 36px;
}

.primary {
  color: #021014;
  background: linear-gradient(135deg, var(--cyan), var(--emerald));
  box-shadow: 0 0 32px rgba(68, 232, 255, 0.26);
}

.primary:hover {
  filter: brightness(1.08);
}

.secondary {
  color: var(--ink);
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.07);
}

.stats {
  flex-wrap: wrap;
  gap: 14px;
  padding: 0;
  margin: 0;
}

.stats div {
  min-width: 144px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(8, 17, 26, 0.68);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.stats dt {
  color: var(--ink);
  font-size: 30px;
  font-weight: 950;
}

.stats dd {
  margin: 4px 0 0;
  color: var(--muted);
}

.hero-media {
  position: relative;
}

.hero-media::before {
  position: absolute;
  inset: -1px;
  border-radius: 8px;
  content: "";
  background: linear-gradient(135deg, rgba(68, 232, 255, 0.55), rgba(50, 242, 161, 0.18), rgba(255, 189, 88, 0.28));
  filter: blur(18px);
  opacity: 0.52;
}

.hero-media img {
  position: relative;
  display: block;
  width: 100%;
  min-height: 380px;
  max-height: 700px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.section {
  padding: clamp(66px, 9vw, 114px) clamp(20px, 5vw, 76px);
}

.intro {
  max-width: 1080px;
}

.intro p {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 18px;
}

.app-showcase {
  overflow: hidden;
  background: linear-gradient(180deg, rgba(68, 232, 255, 0.035), rgba(255, 255, 255, 0.012));
}

.carousel-shell {
  display: grid;
  grid-template-columns: minmax(260px, 380px) minmax(0, 1fr);
  align-items: center;
  gap: clamp(30px, 6vw, 96px);
}

.phone-frame {
  position: relative;
  overflow: hidden;
  width: min(100%, 360px);
  aspect-ratio: 9 / 16;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 34px;
  background: #edf5ff;
  box-shadow: 0 34px 100px rgba(0, 0, 0, 0.48), 0 0 54px rgba(68, 232, 255, 0.16);
}

.phone-frame::before {
  position: absolute;
  inset: 10px;
  z-index: 2;
  pointer-events: none;
  border: 1px solid rgba(5, 8, 13, 0.08);
  border-radius: 26px;
  content: "";
}

.carousel-track {
  display: flex;
  width: 400%;
  height: 100%;
  animation: appSlide 18s infinite;
}

.carousel-track img {
  width: 25%;
  height: 100%;
  object-fit: cover;
}

.carousel-copy {
  max-width: 620px;
}

.carousel-copy span {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--amber);
  font-weight: 900;
}

.carousel-copy p {
  color: var(--text);
  line-height: 1.85;
}

.carousel-dots {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}

.carousel-dots i {
  width: 38px;
  height: 4px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.18);
}

.carousel-dots i:first-child {
  background: linear-gradient(90deg, var(--cyan), var(--emerald));
}

@keyframes appSlide {
  0%,
  19% {
    transform: translateX(0);
  }

  25%,
  44% {
    transform: translateX(-25%);
  }

  50%,
  69% {
    transform: translateX(-50%);
  }

  75%,
  94% {
    transform: translateX(-75%);
  }

  100% {
    transform: translateX(0);
  }
}

.section-heading {
  max-width: 850px;
  margin-bottom: 32px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card,
.scene-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.025)),
    var(--panel);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.feature-card {
  min-height: 274px;
  padding: 28px;
}

.icon {
  display: inline-grid;
  min-width: 48px;
  height: 34px;
  place-items: center;
  margin-bottom: 26px;
  padding: 0 10px;
  border: 1px solid rgba(68, 232, 255, 0.4);
  border-radius: 8px;
  color: var(--cyan);
  background: rgba(68, 232, 255, 0.08);
  font-size: 13px;
  font-weight: 950;
}

.feature-card:nth-child(2) .icon {
  color: var(--amber);
  border-color: rgba(255, 189, 88, 0.42);
  background: rgba(255, 189, 88, 0.08);
}

.feature-card:nth-child(3) .icon {
  color: var(--emerald);
  border-color: rgba(50, 242, 161, 0.42);
  background: rgba(50, 242, 161, 0.08);
}

.feature-card:nth-child(4) .icon {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.08);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: clamp(28px, 5vw, 76px);
  background: linear-gradient(180deg, rgba(68, 232, 255, 0.045), rgba(255, 255, 255, 0.015));
}

.scene-list {
  display: grid;
  gap: 14px;
}

.scene-list article {
  padding: 25px 28px;
}

.scene-list p,
.feature-card p,
.cta p {
  margin-bottom: 0;
}

.cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin: clamp(30px, 6vw, 76px);
  padding: clamp(32px, 5vw, 58px);
  border: 1px solid rgba(68, 232, 255, 0.28);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(68, 232, 255, 0.18), rgba(50, 242, 161, 0.09)),
    rgba(8, 17, 26, 0.82);
  box-shadow: var(--shadow);
}

.cta p {
  color: var(--text);
}

.cta .button {
  flex: 0 0 auto;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 18px;
  padding: 0 20px 34px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
  white-space: nowrap;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer a:hover {
  color: var(--cyan);
}

@media (max-width: 980px) {
  .hero,
  .split,
  .carousel-shell {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

  .phone-frame {
    width: min(100%, 330px);
  }
}

@media (max-width: 680px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    font-size: 14px;
  }

  .hero-media img {
    min-height: 280px;
  }

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

  .cta {
    align-items: stretch;
    flex-direction: column;
    margin-right: 20px;
    margin-left: 20px;
  }
}