:root {
  --bg: #f6f8fb;
  --panel: #ffffff;
  --ink: #172033;
  --muted: #667085;
  --line: #dce3ee;
  --blue: #2f7ef7;
  --blue-dark: #1456b8;
  --green: #15966f;
  --amber: #f3a21b;
  --black: #06080d;
  --shadow: 0 18px 45px rgba(22, 33, 52, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(220, 227, 238, 0.9);
  backdrop-filter: blur(16px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 800;
  color: var(--ink);
}

.brand img {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
}

.brand span {
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  padding: 9px 12px;
  border-radius: 8px;
  color: #344054;
  font-size: 15px;
  font-weight: 650;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: #eef4ff;
  color: var(--blue-dark);
}

.nav-links .primary {
  background: var(--blue);
  color: #fff;
}

.nav-links .primary:hover,
.nav-links .primary:focus-visible {
  background: var(--blue-dark);
  color: #fff;
}

.hero {
  background:
    linear-gradient(112deg, var(--black) 0%, #09101d 44%, #eaf3ff 44.2%, #eaf3ff 100%);
  color: #fff;
}

.hero-inner {
  width: min(1180px, calc(100% - 32px));
  min-height: calc(100vh - 68px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1.12fr);
  align-items: center;
  gap: 38px;
  padding: 54px 0 62px;
}

.eyebrow {
  margin: 0 0 14px;
  color: #9cc3ff;
  font-size: 15px;
  font-weight: 750;
}

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

h1 {
  margin-bottom: 18px;
  max-width: 720px;
  font-size: 60px;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 640px;
  color: #d5dde8;
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 760;
  line-height: 1.2;
}

.button.primary {
  background: var(--blue);
  color: #fff;
}

.button.primary:hover,
.button.primary:focus-visible {
  background: var(--blue-dark);
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.32);
  color: #fff;
}

.button.secondary:hover,
.button.secondary:focus-visible {
  background: rgba(255, 255, 255, 0.1);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 560px;
  margin-top: 34px;
}

.hero-meta div {
  border-left: 3px solid var(--amber);
  padding: 3px 0 3px 12px;
}

.hero-meta strong {
  display: block;
  color: #fff;
  font-size: 18px;
}

.hero-meta span {
  display: block;
  margin-top: 4px;
  color: #aebdcc;
  font-size: 13px;
}

.hero-visual {
  position: relative;
  min-width: 0;
}

.hero-visual img {
  width: 100%;
  min-height: 340px;
  max-height: 560px;
  object-fit: cover;
  object-position: 50% 50%;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.section {
  padding: 78px 0;
}

.section.alt {
  background: #fff;
}

.section.dark {
  background: #101725;
  color: #fff;
}

.wrap {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head.center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-head p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.dark .section-head p {
  color: #b9c4d5;
}

h2 {
  margin-bottom: 12px;
  font-size: 42px;
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.35;
}

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

.download-card,
.feature-card,
.faq-item,
.contact-box,
.version-row,
.keyword-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.download-card {
  min-height: 236px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.download-card .icon {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: inline-grid;
  place-items: center;
  background: #eaf2ff;
  color: var(--blue-dark);
  font-weight: 900;
}

.download-card p,
.feature-card p,
.faq-item p,
.version-row p,
.keyword-panel p,
.contact-box p {
  color: var(--muted);
  line-height: 1.72;
}

.download-card .button {
  margin-top: auto;
  width: 100%;
  border-color: #c8dafb;
  color: var(--blue-dark);
  background: #f4f8ff;
}

.download-card .button:hover,
.download-card .button:focus-visible {
  background: var(--blue);
  color: #fff;
}

.notice {
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid #f1c26b;
  border-radius: 8px;
  background: #fff8e8;
  color: #7a4d00;
  line-height: 1.7;
}

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

.feature-card {
  padding: 24px;
  min-height: 180px;
}

.feature-card .mark {
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #ebfbf6;
  color: var(--green);
  font-weight: 900;
}

.media-row {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 44px;
  align-items: center;
}

.media-row.reverse {
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
}

.media-copy p,
.plain-copy p {
  color: var(--muted);
  line-height: 1.82;
  font-size: 17px;
}

.media-image {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.media-image img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.pill-list li {
  padding: 8px 12px;
  border-radius: 8px;
  background: #eef4ff;
  color: var(--blue-dark);
  font-weight: 700;
  font-size: 14px;
}

.version-list {
  display: grid;
  gap: 12px;
}

.version-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.38fr) minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 18px;
}

.version-row strong {
  font-size: 18px;
}

.version-row p {
  margin-bottom: 0;
}

.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 0 10px;
  border-radius: 8px;
  background: #eaf2ff;
  color: var(--blue-dark);
  font-weight: 760;
  white-space: nowrap;
}

.keyword-panels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.keyword-panel {
  padding: 24px;
}

.faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.faq-item {
  padding: 22px;
}

.cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: 34px;
  border-radius: 8px;
  background: linear-gradient(115deg, #1a53c8, #1f9b79);
  color: #fff;
}

.cta-band p {
  margin-bottom: 0;
  color: #dff7f1;
  line-height: 1.7;
}

.cta-band .button {
  background: #fff;
  color: #134cae;
}

.subpage-hero {
  padding: 72px 0 58px;
  background: #101725;
  color: #fff;
}

.subpage-hero .wrap {
  max-width: 930px;
}

.subpage-hero p {
  color: #c4cedc;
  font-size: 18px;
  line-height: 1.78;
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.4fr);
  gap: 28px;
  align-items: start;
}

.plain-copy {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
}

.plain-copy ul {
  margin: 12px 0 0;
  padding-left: 22px;
  color: var(--muted);
  line-height: 1.8;
}

.contact-box {
  padding: 24px;
  position: sticky;
  top: 88px;
}

.contact-box .button {
  width: 100%;
  background: var(--blue);
  color: #fff;
}

.site-footer {
  background: #080c14;
  color: #b8c2d1;
  padding: 38px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: #fff;
}

@media (max-width: 980px) {
  .hero {
    background: #0b111e;
  }

  .hero-inner,
  .media-row,
  .media-row.reverse,
  .two-col,
  .cta-band {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
    padding-top: 44px;
  }

  h1 {
    font-size: 46px;
  }

  h2 {
    font-size: 34px;
  }

  .hero-visual img {
    max-height: none;
  }

  .download-grid,
  .feature-grid,
  .keyword-panels,
  .faq-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .version-row {
    grid-template-columns: 1fr;
  }

  .contact-box {
    position: static;
  }
}

@media (max-width: 680px) {
  .nav {
    min-height: auto;
    padding: 12px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .nav-links a {
    padding: 8px 10px;
    font-size: 14px;
  }

  .section {
    padding: 54px 0;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 28px;
  }

  .hero-meta,
  .download-grid,
  .feature-grid,
  .keyword-panels,
  .faq-list {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .subpage-hero p,
  .media-copy p,
  .plain-copy p {
    font-size: 16px;
  }

  .cta-band {
    padding: 24px;
  }

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

  .footer-links {
    justify-content: flex-start;
  }
}