:root {
  --bg: #f6f9ff;
  --surface: rgba(255, 255, 255, 0.78);
  --surface2: rgba(255, 255, 255, 0.92);
  --text: #0b1b3a;
  --muted: rgba(11, 27, 58, 0.68);
  --muted2: rgba(11, 27, 58, 0.52);
  --line: rgba(40, 90, 200, 0.16);
  --blue: #1e7bff;
  --blue2: #0a4bd4;
  --shadow: 0 18px 50px rgba(10, 35, 86, 0.12);
  --shadow2: 0 10px 28px rgba(10, 35, 86, 0.12);
  --radius: 18px;
  --radius2: 26px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background: radial-gradient(1200px 700px at 20% 0%, rgba(30, 123, 255, 0.18), transparent 55%),
    radial-gradient(900px 520px at 85% 20%, rgba(48, 189, 255, 0.12), transparent 55%),
    linear-gradient(180deg, #ffffff, var(--bg));
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Noto Sans CJK SC", "Noto Sans SC", "Microsoft Yahei", sans-serif;
  line-height: 1.55;
}

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

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.55);
  border-bottom: 1px solid rgba(40, 90, 200, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brandLogo {
  height: 30px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  border-radius: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.brandText {
  font-weight: 750;
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  gap: 14px;
  align-items: center;
}

.navLink {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.navLink:hover {
  background: rgba(30, 123, 255, 0.1);
  color: var(--text);
  transform: translateY(-1px);
}

.wrap {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
  padding: 26px 0 60px;
}

.hero {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 18px;
  align-items: stretch;
  padding: 22px;
  border-radius: var(--radius2);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.62));
  border: 1px solid rgba(40, 90, 200, 0.14);
  box-shadow: var(--shadow);
}

.kicker {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(30, 123, 255, 0.08);
  border: 1px solid rgba(30, 123, 255, 0.12);
  color: rgba(11, 27, 58, 0.86);
  font-weight: 650;
  letter-spacing: 0.02em;
  width: fit-content;
}

.heroTitle {
  margin: 14px 0 8px;
  font-size: 44px;
  letter-spacing: 0.04em;
  line-height: 1.1;
}

.heroDesc {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  max-width: 42em;
}

.ctaRow {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.btnPrimary,
.btnGhost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 16px;
  border-radius: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease, color 160ms ease,
    border-color 160ms ease;
  user-select: none;
}

.btnPrimary {
  color: white;
  background: linear-gradient(180deg, var(--blue), var(--blue2));
  box-shadow: 0 16px 38px rgba(30, 123, 255, 0.28);
}

.btnPrimary:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 44px rgba(30, 123, 255, 0.34);
}

.btnGhost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(40, 90, 200, 0.18);
  box-shadow: 0 12px 30px rgba(10, 35, 86, 0.08);
}

.btnGhost:hover {
  transform: translateY(-1px);
  border-color: rgba(30, 123, 255, 0.28);
  box-shadow: 0 16px 34px rgba(10, 35, 86, 0.11);
}

.metaRow {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.metaCard {
  padding: 12px 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(40, 90, 200, 0.14);
}

.metaNum {
  font-weight: 820;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.metaLabel {
  margin-top: 2px;
  color: var(--muted2);
  font-weight: 650;
  font-size: 13px;
}

.heroRight {
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 10px;
  justify-items: center;
  align-content: center;
}

.iconFrame {
  width: min(220px, 100%);
  aspect-ratio: 1;
  border-radius: 34px;
  padding: 14px;
  background: radial-gradient(180px 180px at 35% 25%, rgba(30, 123, 255, 0.22), rgba(255, 255, 255, 0.55)),
    rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(40, 90, 200, 0.18);
  box-shadow: var(--shadow2);
  display: grid;
  place-items: center;
}

.appIcon {
  width: 100%;
  height: 100%;
  border-radius: 26px;
  object-fit: cover;
}

.iconNote {
  font-size: 12px;
  color: var(--muted2);
}

.section {
  margin-top: 26px;
  padding: 22px;
  border-radius: var(--radius2);
  background: var(--surface);
  border: 1px solid rgba(40, 90, 200, 0.12);
  box-shadow: 0 18px 50px rgba(10, 35, 86, 0.06);
}

.sectionHead {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
}

.sectionTitle {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.02em;
}

.sectionSub {
  margin: 0;
  color: var(--muted);
  max-width: 60ch;
}

.grid3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.grid2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.card {
  padding: 16px 16px;
  border-radius: var(--radius);
  background: var(--surface2);
  border: 1px solid rgba(40, 90, 200, 0.12);
}

.cardTitle {
  margin: 0;
  font-size: 16px;
  font-weight: 780;
}

.cardDesc {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.featureList {
  display: grid;
  gap: 10px;
}

.feature {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius);
  background: var(--surface2);
  border: 1px solid rgba(40, 90, 200, 0.12);
}

.badge {
  height: 34px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 780;
  color: rgba(11, 27, 58, 0.9);
  background: rgba(30, 123, 255, 0.1);
  border: 1px solid rgba(30, 123, 255, 0.15);
}

.featureTitle {
  font-weight: 800;
  letter-spacing: 0.02em;
}

.featureDesc {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
}

.closing {
  margin-top: 26px;
  padding: 22px 22px;
  border-radius: var(--radius2);
  background: linear-gradient(180deg, rgba(30, 123, 255, 0.12), rgba(255, 255, 255, 0.72));
  border: 1px solid rgba(30, 123, 255, 0.18);
  box-shadow: 0 18px 50px rgba(10, 35, 86, 0.06);
}

.closingLine {
  margin: 0;
  color: rgba(11, 27, 58, 0.86);
  font-weight: 720;
}

.closingBrand {
  margin: 8px 0 0;
  color: var(--muted);
}

.footer {
  border-top: 1px solid rgba(40, 90, 200, 0.08);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(10px);
}

.footerInner {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted2);
  font-size: 13px;
}

.footerRight {
  display: flex;
  gap: 14px;
}

.footerLink:hover {
  color: rgba(11, 27, 58, 0.86);
}

@media (max-width: 880px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .heroRight {
    justify-items: start;
  }

  .iconFrame {
    width: min(190px, 70vw);
  }

  .grid3 {
    grid-template-columns: 1fr;
  }

  .grid2 {
    grid-template-columns: 1fr;
  }

  .feature {
    grid-template-columns: 56px 1fr;
  }
}

@media (max-width: 520px) {
  .top {
    padding: 12px 14px;
  }

  .wrap {
    width: calc(100% - 28px);
  }

  .heroTitle {
    font-size: 36px;
  }

  .nav {
    gap: 8px;
  }

  .navLink {
    padding: 7px 10px;
  }
}