:root {
  --bg: #0f1115;
  --bg-soft: #171a21;
  --card: #1e222b;
  --text: #e8eaed;
  --text-muted: #9aa0ab;
  --accent: #ff5c39;
  --accent-soft: rgba(255, 92, 57, 0.15);
  --radius: 16px;
  --max-width: 1200px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; height: auto; }

/* Nav */
.site-header {
  position: fixed;
  top: 0; left: 0; width: 100%;
  background: rgba(15, 17, 21, 0.92);
  backdrop-filter: blur(10px);
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
}
.brand img {
  height: 32px;
  width: 32px;
  border-radius: 8px;
  object-fit: cover;
}
.nav-links { display: flex; gap: 24px; font-size: 15px; color: var(--text-muted); }
.nav-links a:hover { color: var(--accent); }
.nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}
.nav-cta:hover { background: #e04a2a; }

/* Sections General */
section { padding: 80px 20px; }
.section-inner { max-width: var(--max-width); margin: 0 auto; }
.section-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
  text-align: center;
}
.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 48px;
  font-size: 16px;
}

/* Hero */
.hero {
  padding-top: 120px;
  padding-bottom: 60px;
  background: linear-gradient(180deg, #1a1512 0%, var(--bg) 100%);
  display: flex;
  align-items: center;
  min-height: 90vh;
}
.hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 60px;
  width: 100%;
}
.hero-text { flex: 1; }
.hero-text h1 {
  font-size: 42px;
  line-height: 1.2;
  margin-bottom: 24px;
  font-weight: 800;
}
.hero-text h1 span { color: var(--accent); }
.hero-text p {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-buttons { display: flex; gap: 16px; align-items: center; }
.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  padding: 16px 36px;
  border-radius: 30px;
  transition: transform 0.2s, background 0.2s;
  box-shadow: 0 4px 20px rgba(255, 92, 57, 0.3);
}
.btn-download:hover { background: #e04a2a; transform: translateY(-2px); }
.hero-covers {
  flex: 1;
  display: flex;
  gap: 16px;
  justify-content: flex-end;
  position: relative;
}
.hero-covers img {
  width: 180px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  object-fit: cover;
  aspect-ratio: 3/4;
  transition: transform 0.3s;
}
.hero-covers img:nth-child(1) { transform: translateY(20px); }
.hero-covers img:nth-child(2) { transform: translateY(-20px); }
.hero-covers img:nth-child(3) { transform: translateY(20px); }
.hero-covers img:hover { transform: translateY(0) scale(1.02); }

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-soft);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.05);
}
.feature-icon {
  width: 48px; height: 48px;
  background: var(--accent-soft);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}
.feature-card h3 { font-size: 20px; margin-bottom: 12px; }
.feature-card p { color: var(--text-muted); font-size: 15px; }

/* Gallery */
.gallery-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--bg-soft);
}
.gallery-scroll::-webkit-scrollbar { height: 6px; }
.gallery-scroll::-webkit-scrollbar-track { background: var(--bg-soft); border-radius: 3px; }
.gallery-scroll::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }
.gallery-item {
  flex: 0 0 auto;
  width: 200px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  transition: transform 0.3s;
}
.gallery-item:hover { transform: scale(1.03); }
.gallery-item img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
}
.gallery-item p {
  position: absolute;
  bottom: 0; left: 0; width: 100%;
  background: linear-gradient(transparent, rgba(0,0,0,0.9));
  color: #fff;
  padding: 30px 12px 12px;
  font-size: 14px;
  font-weight: 500;
}

/* How to get */
.steps-container {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  position: relative;
}
.step-item {
  flex: 1;
  text-align: center;
  background: var(--bg-soft);
  padding: 40px 24px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.05);
}
.step-num {
  width: 40px; height: 40px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 18px;
  margin: 0 auto 20px;
}
.step-item h3 { font-size: 18px; margin-bottom: 12px; }
.step-item p { color: var(--text-muted); font-size: 14px; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-soft);
  border-radius: 12px;
  margin-bottom: 16px;
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.05);
}
.faq-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--text);
}
.faq-item p { color: var(--text-muted); font-size: 15px; }

/* CTA Bottom */
.bottom-cta {
  text-align: center;
  background: linear-gradient(135deg, #2a1a15 0%, #1a1512 100%);
  border-radius: 24px;
  padding: 60px 20px;
  margin: 0 20px;
}
.bottom-cta h2 { font-size: 32px; margin-bottom: 16px; }
.bottom-cta p { color: var(--text-muted); margin-bottom: 32px; font-size: 16px; }

/* Footer */
.site-footer {
  padding: 40px 20px;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.05);
  font-size: 13px;
  color: #666;
}
.site-footer p { margin-bottom: 8px; }
.site-footer a { color: #888; }
.site-footer a:hover { color: var(--accent); }
.time-info { margin-top: 8px; font-size: 12px; color: #555; }

/* Responsive */
@media (max-width: 1024px) {
  .hero { flex-direction: column; padding-top: 100px; min-height: auto; }
  .hero-content { flex-direction: column; gap: 40px; }
  .hero-text { text-align: center; }
  .hero-text h1 { font-size: 34px; }
  .hero-buttons { justify-content: center; }
  .hero-covers { justify-content: center; }
  .hero-covers img { width: 140px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-container { flex-direction: column; gap: 16px; }
  .nav-links { display: none; }
}
@media (max-width: 768px) {
  .hero-text h1 { font-size: 28px; }
  .hero-text p { font-size: 16px; }
  .btn-download { width: 100%; padding: 14px 20px; }
  .hero-covers { flex-wrap: wrap; }
  .hero-covers img { width: 120px; }
  .features-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 24px; }
  .gallery-item { width: 150px; }
  .bottom-cta h2 { font-size: 24px; }
}