:root {
  --bg: #07080a;
  --panel: #101216;
  --panel-2: #15181d;
  --line: rgba(255,255,255,.09);
  --text: #f7f8fa;
  --muted: #9198a3;
  --accent: #7c5cff;
  --accent-2: #3d8cff;
  --success: #39d98a;
  --max: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 75% 0%, rgba(87,69,255,.13), transparent 30%),
    radial-gradient(circle at 0% 30%, rgba(20,108,255,.08), transparent 25%),
    var(--bg);
  font-family: Inter, "Segoe UI", "Microsoft YaHei UI", sans-serif;
}

body::selection {
  color: #fff;
  background: var(--accent);
}

.noise {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: .035;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 76px;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  display: flex;
  align-items: center;
  gap: 44px;
  border-bottom: 1px solid var(--line);
  background: rgba(7,8,10,.76);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-right: auto;
}

.brand img {
  width: 118px;
  height: 28px;
  object-fit: contain;
}

.brand span {
  color: #b4bac4;
  font-size: 12px;
  letter-spacing: .22em;
}

nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

nav a {
  color: #a9afb9;
  font-size: 14px;
  transition: color .2s ease;
}

nav a:hover {
  color: #fff;
}

.nav-cta {
  padding: 10px 17px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  background: rgba(255,255,255,.045);
}

.hero {
  position: relative;
  max-width: var(--max);
  min-height: 770px;
  margin: 0 auto;
  padding: 120px 24px 100px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 70px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(40px);
  pointer-events: none;
}

.hero-glow-one {
  width: 360px;
  height: 360px;
  right: 60px;
  top: 140px;
  background: rgba(92,67,255,.12);
}

.hero-glow-two {
  width: 260px;
  height: 260px;
  left: 240px;
  bottom: 30px;
  background: rgba(33,115,255,.08);
}

.hero-content {
  position: relative;
  z-index: 2;
}

.eyebrow,
.section-heading span,
.download-label,
.support-section span {
  color: #9085ff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
}

.hero-logo {
  width: 390px;
  max-width: 88%;
  margin-top: 30px;
  object-fit: contain;
}

.hero h1 {
  margin: 18px 0 24px;
  font-size: clamp(56px, 7vw, 94px);
  line-height: .92;
  letter-spacing: -.055em;
}

.hero h1 span {
  color: #9299a4;
  font-weight: 400;
}

.hero-copy {
  max-width: 620px;
  color: #a4aab4;
  font-size: 19px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 34px;
}

.primary-button,
.secondary-button,
.download-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 12px;
  font-weight: 700;
  transition: transform .2s ease, background .2s ease;
}

.primary-button,
.download-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 14px 40px rgba(75,74,255,.25);
}

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

.secondary-button {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: 30px;
  color: #6f7680;
  font-size: 12px;
}

.product-card {
  position: relative;
  z-index: 2;
  min-height: 480px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 22px;
  background: rgba(16,18,22,.88);
  box-shadow: 0 40px 100px rgba(0,0,0,.5);
  transform: perspective(1000px) rotateY(-4deg) rotateX(2deg);
}

.window-bar {
  height: 52px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  color: #7c838e;
  font-size: 12px;
}

.window-dots {
  display: flex;
  gap: 7px;
}

.window-dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #3b4048;
}

.mock-layout {
  min-height: 428px;
  display: grid;
  grid-template-columns: 140px 1fr;
}

.mock-layout aside {
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-right: 1px solid var(--line);
  background: #0c0e11;
}

.mock-layout aside b {
  margin-bottom: 20px;
  letter-spacing: .14em;
}

.mock-layout aside span {
  padding: 10px 12px;
  color: #737a84;
  border-radius: 8px;
  font-size: 12px;
}

.mock-layout aside .active {
  color: #fff;
  background: #1e2229;
}

.mock-layout section {
  padding: 34px;
}

.mock-layout small {
  color: #6e7580;
}

.mock-layout h3 {
  margin: 8px 0 28px;
  font-size: 26px;
}

.mock-control {
  padding: 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #14171b;
}

.switch {
  width: 42px;
  height: 23px;
  padding: 3px;
  border-radius: 999px;
  background: #343944;
}

.switch::after {
  content: "";
  display: block;
  width: 17px;
  height: 17px;
  margin-left: 19px;
  border-radius: 50%;
  background: #fff;
}

.switch.on {
  background: var(--accent);
}

.mock-inputs {
  margin: 18px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.mock-inputs div {
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #111318;
}

.mock-inputs label {
  display: block;
  margin-bottom: 8px;
  color: #737a85;
  font-size: 10px;
}

.mock-inputs strong {
  font-size: 12px;
}

.mock-layout button {
  width: 100%;
  padding: 14px;
  color: #fff;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, #7656ff, #397fff);
  font-weight: 700;
}

.connected {
  margin-top: 18px;
  color: var(--success);
  font-size: 11px;
}

.trust-strip {
  padding: 22px max(24px, calc((100vw - var(--max)) / 2));
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: #8b929d;
  background: rgba(255,255,255,.018);
  font-size: 13px;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 120px 24px;
}

.section-heading {
  max-width: 700px;
  margin: 0 auto 54px;
  text-align: center;
}

.section-heading.left {
  margin-left: 0;
  text-align: left;
}

.section-heading h2,
.download-card h2,
.support-section h2 {
  margin: 10px 0 16px;
  font-size: clamp(38px, 5vw, 62px);
  line-height: 1.05;
  letter-spacing: -.04em;
}

.section-heading p,
.download-card p,
.support-section p {
  color: var(--muted);
  line-height: 1.7;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-grid article {
  min-height: 230px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.035), transparent),
    var(--panel);
  transition: transform .25s ease, border-color .25s ease;
}

.feature-grid article:hover {
  transform: translateY(-5px);
  border-color: rgba(124,92,255,.35);
}

.feature-number {
  margin-bottom: 40px;
  color: #6656d9;
  font-family: monospace;
}

.feature-grid h3 {
  font-size: 21px;
}

.feature-grid p {
  color: var(--muted);
  line-height: 1.7;
}

.download-section {
  padding: 110px max(24px, calc((100vw - var(--max)) / 2));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 80% 50%, rgba(96,64,255,.13), transparent 30%),
    #0b0d10;
}

.download-card {
  padding: 54px;
  display: grid;
  grid-template-columns: 1.4fr .8fr;
  gap: 80px;
  align-items: center;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 24px;
  background: rgba(18,21,26,.85);
}

.release-specs {
  display: flex;
  gap: 50px;
  margin-top: 34px;
}

.release-specs small {
  display: block;
  margin-bottom: 7px;
  color: #747b85;
}

.download-action {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.download-button {
  min-height: 62px;
  font-size: 16px;
}

.download-button.disabled {
  color: #777e88;
  cursor: not-allowed;
  background: #252a31;
  box-shadow: none;
}

.download-action p,
.download-action span {
  color: #747b85;
  font-size: 12px;
  line-height: 1.6;
}

.security-note {
  max-width: 900px;
  margin: 24px auto 0;
  padding: 18px 22px;
  display: flex;
  gap: 20px;
  border: 1px solid rgba(255,201,80,.18);
  border-radius: 14px;
  background: rgba(255,201,80,.045);
}

.security-note strong {
  color: #f2c96d;
  white-space: nowrap;
}

.security-note p {
  margin: 0;
  color: #9c9b91;
  line-height: 1.6;
}

.timeline {
  border-top: 1px solid var(--line);
}

.timeline article {
  padding: 28px 0;
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 30px;
  border-bottom: 1px solid var(--line);
}

.timeline-version {
  color: #8b7cff;
  font-family: monospace;
}

.timeline h3 {
  margin: 0 0 8px;
}

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

.support-section {
  max-width: var(--max);
  margin: 0 auto 110px;
  padding: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(135deg, #13161b, #0d0f12);
}

.support-section a {
  padding: 15px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: #d9dce1;
}

footer {
  min-height: 150px;
  padding: 35px max(24px, calc((100vw - var(--max)) / 2));
  display: flex;
  align-items: center;
  gap: 30px;
  border-top: 1px solid var(--line);
  color: #676d76;
  font-size: 12px;
}

footer img {
  width: 130px;
}

footer p {
  margin-right: auto;
}

@media (max-width: 980px) {
  nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 90px;
  }

  .product-card {
    transform: none;
  }

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

  .download-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    height: 68px;
  }

  .brand span,
  .nav-cta {
    display: none;
  }

  .hero {
    padding-top: 70px;
  }

  .hero-logo {
    width: 280px;
  }

  .hero h1 {
    font-size: 52px;
  }

  .hero-actions,
  .trust-strip,
  .release-specs,
  .support-section,
  footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .mock-layout {
    grid-template-columns: 1fr;
  }

  .mock-layout aside {
    display: none;
  }

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

  .download-card {
    padding: 30px;
  }

  .timeline article {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}