:root {
  --bg: #0a0612;
  --bg-2: #140820;
  --fg: #ffffff;
  --muted: #b9b3c7;
  --brand: #ff2a6d;
  --brand-2: #ff6ea8;
  --accent: #8a3bff;
  --card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --maxw: 1160px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3 { margin: 0 0 .6em; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.15; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
p { margin: 0 0 1em; color: var(--muted); }

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

.bg-scroller {
  position: fixed;
  top: -20%;
  left: -20%;
  width: 140%;
  height: 140%;
  z-index: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  padding: 10px;
  transform: rotate(-15deg) translateZ(0);
  transform-origin: center center;
  opacity: .55;
  pointer-events: none;
  contain: strict;
}
.col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
  border-radius: 14px;
}
.col img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: 12px;
}

.bg-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 20%, rgba(255, 42, 109, 0.18), transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(138, 59, 255, 0.18), transparent 60%),
    linear-gradient(180deg, rgba(10, 6, 18, 0.55) 0%, rgba(10, 6, 18, 0.78) 50%, rgba(10, 6, 18, 0.95) 100%);
}

/* 导航 */
.nav {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(10, 6, 18, 0.85);
  border-bottom: 1px solid var(--border);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.nav-links { display: flex; gap: 22px; }
.nav-links a { color: var(--muted); font-size: .95rem; }
.nav-links a:hover { color: var(--fg); }

main { position: relative; z-index: 2; }
.nav { z-index: 10; }

/* Hero */
.hero {
  min-height: 86vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  text-align: center;
}
.hero-inner { max-width: 820px; }
.hero-logo {
  width: 110px;
  height: 110px;
  border-radius: 26px;
  margin: 0 auto 22px;
  box-shadow: 0 20px 60px rgba(255, 42, 109, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.06);
}
.subtitle {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: #e7e1f3;
  max-width: 680px;
  margin: 0 auto 28px;
}
.cta { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  cursor: pointer;
}
.btn-primary {
  border-radius: 130.24px;
  background: linear-gradient(106deg, #1EDAFF 10%, #6F7FFF 41%, #B03AFF 62%, #FF17B6 94%);
  box-shadow: inset 0.89px 0.89px 7.14px 0px rgba(255, 255, 255, 0.45);
  color: #fff;
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-lg { padding: 16px 28px; font-size: 1.05rem; }

/* About */
.about { padding: 40px 0 20px; position: relative; z-index: 2; }
.lead {
  font-size: 1.05rem;
  color: #ddd5ea;
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

/* Features */
.features { padding: 100px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(255, 42, 109, 0.15), rgba(138, 59, 255, 0.15));
  border: 1px solid rgba(255, 42, 109, 0.3);
  color: var(--brand-2);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  background: linear-gradient(135deg, #fff 0%, #d0c5e8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 12px;
}
.section-sub { color: var(--muted); font-size: 1.02rem; margin: 0; }

.grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  --c1: #ff2a6d;
  --c2: #8a3bff;
  position: relative;
  border-radius: 20px;
  padding: 28px;
  background: rgba(20, 8, 32, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease;
  isolation: isolate;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(135deg, var(--c1), var(--c2));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}
.card-bg {
  position: absolute;
  top: -40%;
  right: -30%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--c1), transparent 70%);
  opacity: .25;
  transition: opacity .35s ease, transform .35s ease;
  z-index: -1;
  pointer-events: none;
}
@media (hover: hover) {
  .card:hover { transform: translateY(-6px); border-color: transparent; }
  .card:hover::before { opacity: 1; }
  .card:hover .card-bg { opacity: .35; }
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.card .icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--c1), var(--c2));
  color: #fff;
  box-shadow: 0 8px 24px -6px color-mix(in srgb, var(--c1) 60%, transparent);
}
.card .num {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--c1), var(--c2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: .5;
  letter-spacing: -0.02em;
}
.card h3 { font-size: 1.15rem; margin-bottom: 10px; color: #fff; }
.card p { margin: 0; font-size: .95rem; color: #b9b3c7; line-height: 1.65; }

.card-cta {
  background: linear-gradient(135deg, rgba(255, 42, 109, 0.12), rgba(138, 59, 255, 0.12));
}
.card-cta::before { opacity: 1; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  color: #fff;
  font-weight: 600;
  font-size: .95rem;
  transition: gap .25s ease;
}
.card-link:hover { gap: 10px; }
.card-link svg { transition: transform .25s ease; }

/* Showcase */
.showcase { padding: 60px 0; }
.showcase h2 { text-align: center; margin-bottom: 30px; }
.shots {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.shot {
  aspect-ratio: 9/19;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
}
.shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.placeholder {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: .9rem;
  background:
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.03) 0 10px, rgba(255, 255, 255, 0.06) 10px 20px);
}

/* Download */
.download { padding: 80px 0; text-align: center; }
.download p { max-width: 520px; margin: 0 auto 26px; }

/* Footer */
.footer {
  position: relative;
  z-index: 2;
  padding: 40px 0 30px;
  border-top: 1px solid var(--border);
  background: rgba(10, 6, 18, 0.85);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}
.footer-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; }
.footer-brand img { width: 28px; height: 28px; border-radius: 7px; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); font-size: .95rem; }
.footer-links a:hover { color: var(--fg); }
.footer-copy { color: var(--muted); font-size: .85rem; width: 100%; text-align: center; margin-top: 10px; }

@media (max-width: 640px) {
  .nav-links { display: none; }
  .bg-scroller { grid-template-columns: repeat(3, 1fr); }
  .bg-scroller .col-4 { display: none; }
}