:root {
  --bg: #060b16;
  --card: #131c2c;
  --line: #2a364d;
  --text: #e8efff;
  --muted: #9cb0d1;
  --brand: #91bcff;
  --brand-2: #87e4ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans SC", "Outfit", sans-serif;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  min-width: 1200px;
}

.aurora {
  position: fixed;
  filter: blur(70px);
  z-index: 0;
  pointer-events: none;
}

.aurora-a {
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, #3365c7 0%, rgba(51, 101, 199, 0) 70%);
  top: -120px;
  right: -120px;
}

.aurora-b {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, #6a3ccf 0%, rgba(106, 60, 207, 0) 70%);
  bottom: -120px;
  left: -120px;
}

.topbar,
main,
footer {
  position: relative;
  z-index: 2;
}

.topbar {
  max-width: 1160px;
  margin: 0 auto;
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.brand strong {
  display: block;
  font-size: 1.05rem;
  letter-spacing: 0.3px;
}

.brand span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  border-radius: 14px;
  border: 1px solid #9fbfff;
  background: linear-gradient(135deg, #9cc4ff, #b5d3ff);
  color: #0c1f3f;
  text-decoration: none;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(132, 178, 255, 0.4);
}

.download-btn.lg {
  padding: 13px 26px;
  font-size: 1.03rem;
}

main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 10px 22px 56px;
}

.hero {
  display: grid;
  gap: 24px;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
}

.hero-copy .tag {
  display: inline-block;
  margin: 0;
  padding: 6px 12px;
  font-size: 0.82rem;
  border: 1px solid var(--line);
  color: var(--brand-2);
  border-radius: 999px;
}

.hero h1 {
  margin: 12px 0;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: 0.3px;
}

.hero .lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.8;
  max-width: 56ch;
}

.hero-actions {
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-actions .sub {
  color: #8ea0c1;
  font-size: 0.86rem;
}

.hero-phone {
  border-radius: 30px;
  padding: 8px;
  background: linear-gradient(145deg, rgba(128, 164, 230, 0.42), rgba(97, 126, 180, 0.15));
  border: 1px solid rgba(186, 210, 255, 0.35);
}

.hero-phone img {
  display: block;
  width: 100%;
  border-radius: 22px;
}

.feature-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.feature-grid article {
  background: linear-gradient(180deg, rgba(23, 33, 51, 0.96), rgba(19, 26, 41, 0.92));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px 16px;
}

.feature-grid h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.feature-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.92rem;
}

.shots {
  margin-top: 32px;
}

.sec-head h2 {
  margin: 0;
  font-size: 1.65rem;
}

.sec-head p {
  margin: 8px 0 0;
  color: var(--muted);
}

.shot-track {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(7, minmax(220px, 1fr));
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.shot-track img {
  width: 100%;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #0a1020;
}

.download-panel {
  margin-top: 34px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: radial-gradient(circle at top, rgba(149, 180, 238, 0.18), rgba(18, 27, 42, 0.92) 50%);
  padding: 30px 18px;
}

.download-panel h2 {
  margin: 0;
  font-size: 1.85rem;
}

.download-panel p {
  color: var(--muted);
}

footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  max-width: 1160px;
  margin: 0 auto;
  padding: 20px 22px 28px;
  color: #8398be;
  font-size: 0.86rem;
}