* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #fff;
  background: #000;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.hero-bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at 20% 10%, #852653, transparent 65%), radial-gradient(ellipse at 85% 60%, #16466b, transparent 70%), #101827;
  filter: brightness(0.35) saturate(1.2);
  z-index: -2;
}

.gradient-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.7) 50%, rgba(0,0,0,0.9) 100%);
  z-index: -1;
}

header {
  padding: 1.5rem 2rem;
  position: relative;
  z-index: 10;
}

.logo {
  font-size: 2.4rem;
  font-weight: 900;
  letter-spacing: -1px;
}

.logo span {
  color: #ff2d6a;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  position: relative;
  z-index: 5;
}

.hero-content {
  text-align: center;
  padding: 4rem 1rem 3rem;
}

h1 {
  font-size: 3.2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  text-shadow: 0 4px 20px rgba(0,0,0,0.6);
}

.subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: 2.5rem;
}

.cta {
  display: inline-block;
  background: linear-gradient(135deg, #ff2d6a, #ff6b9d);
  color: white;
  text-decoration: none;
  font-size: 1.35rem;
  font-weight: 700;
  padding: 1.1rem 3.2rem;
  border-radius: 50px;
  box-shadow: 0 12px 35px rgba(255, 45, 106, 0.45);
  transition: all 0.25s ease;
}

.cta:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 18px 45px rgba(255, 45, 106, 0.6);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
  margin: 3rem 0;
}

.card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 3/2;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-8px);
}

.card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 42px;
  display: block;
}

.card-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  padding: 1.2rem 1rem 0.8rem;
  font-weight: 600;
  font-size: 1.05rem;
}

.features {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  margin: 3rem 0;
}

.feature {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
  padding: 1rem 1.5rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.1);
}

.icon {
  font-size: 1.8rem;
}

.feature h3 {
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
}

.feature p {
  font-size: 0.85rem;
  opacity: 0.75;
}

.notice {
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.5;
  margin-top: 2rem;
  line-height: 1.6;
}

footer {
  text-align: center;
  padding: 2rem;
}

footer a {
  color: #ff2d6a;
  text-decoration: none;
  font-weight: 600;
}

@media (max-width: 700px) {
  h1 { font-size: 2.3rem; }
  .hero-content { padding: 2.5rem 1rem 2rem; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .features { flex-direction: column; align-items: center; }
}

.card { background: linear-gradient(135deg, #193c66, #193044); }
.card:nth-child(2) { background: linear-gradient(135deg, #4b2f5e, #222d4c); }
.card:nth-child(3) { background: linear-gradient(135deg, #19504a, #1a3443); }
.card:nth-child(4) { background: linear-gradient(135deg, #66402b, #3a2945); }
.cta { border: 0; cursor: pointer; font-family: inherit; }
.cta:focus-visible, footer a:focus-visible { outline: 3px solid #fff; outline-offset: 5px; }
.test-result { margin-top: 1.2rem; font-size: .95rem; color: #d5dce8; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }