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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
  color: #e0e0e0;
  min-height: 100vh;
}

/* ===== Header (Nav + Hero 整体) ===== */
.header {
  background: radial-gradient(ellipse at top, var(--accent-glow) 0%, transparent 60%);
  padding-bottom: 40px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px 0;
}
.nav a {
  color: #a0a0cc;
  text-decoration: none;
  font-size: .9rem;
  padding: 6px 16px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  transition: all .2s;
}
.nav a:hover { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.2); }

.hero {
  text-align: center;
  padding: 60px 20px 0;
}
.hero-icon { width: 96px; height: 96px; border-radius: 22px; margin-bottom: 16px; }
.hero h1 {
  font-size: 2.6rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--accent-from), var(--accent-to));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}
.hero p {
  font-size: 1.1rem;
  color: #a0a0b8;
  max-width: 640px;
  margin: 0 auto 30px;
  line-height: 1.8;
}

/* ===== Download Buttons ===== */
.download-btns {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.download-btns a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .95rem;
  color: #fff;
  text-decoration: none;
  padding: 12px 28px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(255,255,255,.06);
  transition: all .25s;
}
.download-btns a:hover {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.25);
  transform: translateY(-2px);
}
.download-btns .icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  fill: currentColor;
}

/* ===== Section ===== */
.section {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 24px;
}
.section h2 {
  font-size: 1.6rem;
  font-weight: 600;
  color: #f0f0f8;
  margin-bottom: 16px;
  text-align: center;
}
.section h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-from), var(--accent-to));
  margin: 12px auto 0;
  border-radius: 2px;
}
.section p {
  font-size: 1rem;
  color: #b0b0c0;
  line-height: 1.8;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

/* ===== Screenshots ===== */
.screenshots {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 24px 60px;
}
.screenshots h2 {
  font-size: 1.6rem;
  font-weight: 600;
  color: #f0f0f8;
  margin-bottom: 12px;
  text-align: center;
}
.screenshots h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-from), var(--accent-to));
  margin: 12px auto 0;
  border-radius: 2px;
}
.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 36px;
}
.screenshot-grid img {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.08);
  transition: transform .25s, box-shadow .25s;
}
.screenshot-grid img:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,0,0,.4);
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 40px 20px 50px;
  color: #666;
  font-size: .85rem;
  line-height: 2;
  border-top: 1px solid rgba(255,255,255,.05);
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.footer-links a {
  color: #a0a0cc;
  text-decoration: none;
  font-size: .85rem;
  padding: 4px 12px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px;
  transition: all .2s;
}
.footer-links a:hover { background: rgba(255,255,255,.06); color: #fff; }
.footer p a { color: #888; text-decoration: none; }
.footer p a:hover { color: #bbb; }

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .hero { padding: 40px 16px 0; }
  .hero h1 { font-size: 2rem; }
  .section { padding: 40px 16px; }
  .screenshot-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}