:root {
  --ink: #1f1b20;
  --muted: #6d646a;
  --paper: #fffafa;
  --line: #f1dbe0;
  --accent: #e7354d;
  --accent-dark: #aa1731;
  --teal: #008a7a;
  --amber: #e19514;
  --blue: #2563eb;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft Yahei", sans-serif;
}

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

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(18px, 5vw, 64px);
  background: rgba(255, 250, 250, 0.82);
  border-bottom: 1px solid rgba(241, 219, 224, 0.72);
  backdrop-filter: blur(24px);
}

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

.brand {
  gap: 10px;
  font-size: 20px;
  font-weight: 900;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
}

.nav-links {
  gap: 30px;
  color: var(--muted);
  font-weight: 700;
}

.nav-cta,
.primary,
.secondary {
  border-radius: 8px;
  font-weight: 900;
}

.nav-cta,
.primary {
  background: var(--accent);
  color: #fff;
}

.nav-cta {
  padding: 10px 16px;
}

.hero {
  background: radial-gradient(ellipse at 80% 20%, #aa1731 0%, transparent 55%), linear-gradient(135deg, #251d2e, #4d2335);
  position: relative;
  min-height: 94vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 112px clamp(22px, 8vw, 108px) 76px;
  color: #fff;
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  object-fit: cover;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(31, 27, 32, 0.88) 0%, rgba(31, 27, 32, 0.72) 42%, rgba(31, 27, 32, 0.22) 100%),
    linear-gradient(0deg, rgba(31, 27, 32, 0.52), rgba(31, 27, 32, 0.08));
}

.hero-copy {
  position: relative;
  max-width: 780px;
}

.badges {
  flex-wrap: wrap;
  gap: 10px;
}

.badges span {
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 14px;
  font-weight: 800;
}

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

.hero h1 {
  margin-top: 26px;
  font-size: clamp(64px, 11vw, 148px);
  line-height: 0.9;
  letter-spacing: 0;
}

.tagline {
  margin-top: 16px;
  color: #ffccd4;
  font-size: clamp(34px, 5vw, 64px);
  font-weight: 900;
  line-height: 1.05;
}

.intro {
  max-width: 700px;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 19px;
}

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

.primary,
.secondary {
  padding: 14px 20px;
}

.secondary {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.section {
  padding: 92px clamp(22px, 7vw, 96px);
}

.section-head {
  max-width: 820px;
  margin-bottom: 34px;
}

.eyebrow {
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
}

.section h2 {
  margin-top: 10px;
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.08;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-grid article,
.steps article,
.compare > div,
.install {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.feature-grid article {
  min-height: 230px;
  padding: 24px;
}

.icon {
  display: inline-grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 8px;
  background: #ffe5e9;
  color: var(--accent);
  font-weight: 900;
}

.feature-grid h3,
.steps h3,
.compare h3 {
  margin-top: 20px;
  font-size: 22px;
}

.feature-grid p,
.steps p,
.compare p,
.install p,
li {
  color: var(--muted);
}

.band {
  background: #f5f9fb;
}

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

.steps article {
  padding: 24px;
}

.steps b {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
}

.steps article:nth-child(2) b {
  background: var(--teal);
}

.steps article:nth-child(3) b {
  background: var(--amber);
}

.steps article:nth-child(4) b {
  background: var(--blue);
}

.compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.compare > div {
  padding: 30px;
}

.compare strong {
  display: block;
  margin: 22px 0;
  color: var(--accent-dark);
  font-size: 38px;
}

.compare ul {
  padding-left: 22px;
}

.install {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 480px);
  gap: 40px;
  margin: 0 clamp(22px, 7vw, 96px) 92px;
  padding: 34px;
}

.install-list {
  margin: 0;
  padding-left: 22px;
}

code {
  padding: 2px 6px;
  border-radius: 6px;
  background: #f7eef1;
  color: var(--accent-dark);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px clamp(22px, 7vw, 96px);
  background: var(--ink);
  color: #fff;
}

footer a {
  color: #ffccd4;
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }

  .nav-cta {
    padding: 9px 12px;
    font-size: 14px;
  }

  .hero {
    min-height: 92vh;
    align-items: flex-end;
    padding-bottom: 56px;
  }

  .hero-shade {
    background: linear-gradient(0deg, rgba(31, 27, 32, 0.94) 0%, rgba(31, 27, 32, 0.62) 72%, rgba(31, 27, 32, 0.18) 100%);
  }

  .intro {
    font-size: 16px;
  }

  .feature-grid,
  .steps,
  .compare,
  .install {
    grid-template-columns: 1fr;
  }

  .install {
    margin-inline: 22px;
  }

  footer {
    flex-direction: column;
  }
}

.privacy-main {
  max-width: 920px;
  min-height: calc(100vh - 80px);
  margin: 0 auto;
  padding: 120px clamp(22px, 7vw, 64px) 72px;
}

.privacy-main h1 {
  margin-bottom: 28px;
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.1;
}

.privacy-main li + li {
  margin-top: 16px;
}

.privacy-contact {
  margin-top: 28px;
}

[hidden] { display: none !important; }
section[id] { scroll-margin-top: 85px; }
.download-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 18px; }
.download-actions .secondary { border-color: var(--line); }
.download-meta { font-size: 14px; overflow-wrap: anywhere; }
.store-card { display: grid; align-content: start; gap: 18px; padding: 24px; background: #f5f9fb; border-radius: 8px; }
.privacy-main h2 { margin: 28px 0 12px; }
.privacy-main p { margin: 12px 0; }
.privacy-main a { color: var(--accent-dark); text-decoration: underline; }
.privacy-main code { overflow-wrap: anywhere; }
@media (max-width: 480px) { .brand { font-size: 17px; } .install { padding: 22px; } }