/* === App 下载页专属样式 === */
.app-hero {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 40%, #bbf7d0 100%);
  padding: 80px 0 60px;
  overflow: hidden;
}
.app-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 60px;
}
.app-hero-text { flex: 1; }
.app-hero-text .badge {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}
.app-hero-text h1 {
  font-size: 44px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 16px;
}
.app-hero-text h1 span { color: var(--primary); }
.app-hero-text .subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 480px;
}
.app-hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.app-hero-btns .btn-dl {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s;
}
.btn-dl-ios {
  background: var(--text-primary);
  color: #fff;
}
.btn-dl-ios:hover { background: #000; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); }
.btn-dl-android {
  background: #fff;
  color: var(--text-primary);
  border: 2px solid var(--border);
}
.btn-dl-android:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.08); }
.btn-dl-sm { font-size: 12px; color: var(--text-muted); display: block; margin-top: 4px; font-weight: 400; }
.app-hero-mockup {
  flex: 0 0 320px;
  position: relative;
}
.app-hero-mockup .phone-frame {
  width: 260px;
  height: 520px;
  background: #fff;
  border-radius: 32px;
  border: 3px solid #e5e7eb;
  box-shadow: 0 25px 50px rgba(0,0,0,0.12);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}
.phone-frame .phone-notch {
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 120px; height: 28px;
  background: #1f2937;
  border-radius: 0 0 16px 16px;
}
.phone-frame .phone-screen {
  padding: 44px 16px 16px;
  height: 100%;
  background: linear-gradient(180deg, #f0fdf4 0%, #fff 30%);
}
.phone-screen .ps-logo {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px; font-weight: 800;
  margin-bottom: 12px;
}
.phone-screen .ps-title { font-size: 15px; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.phone-screen .ps-desc { font-size: 11px; color: var(--text-muted); margin-bottom: 16px; }
.phone-screen .ps-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; background: #fff;
  border-radius: 10px; margin-bottom: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  font-size: 12px; font-weight: 500;
}
.phone-screen .ps-item .psi-icon {
  width: 32px; height: 32px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
}

/* 特色功能区 */
.features-section { padding: 80px 0; background: #fff; }
.features-section .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 32px; font-weight: 800; color: var(--text-primary); margin-bottom: 12px; }
.section-header p { font-size: 16px; color: var(--text-muted); max-width: 500px; margin: 0 auto; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.feature-card {
  padding: 36px 28px;
  border-radius: var(--radius);
  background: var(--bg-gray);
  transition: all 0.3s;
  text-align: center;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); background: #fff; }
.feature-card .fc-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
}
.fc-icon.green { background: #f0fdf4; color: var(--primary); }
.fc-icon.amber { background: #fffbeb; color: var(--gold); }
.fc-icon.blue { background: #eff6ff; color: var(--blue); }
.fc-icon.red { background: #fef2f2; color: var(--red); }
.fc-icon.purple { background: #faf5ff; color: #a855f7; }
.fc-icon.teal { background: #f0fdfa; color: #14b8a6; }
.feature-card h3 { font-size: 18px; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* 展示区 */
.showcase-section { padding: 80px 0; background: var(--bg-gray); }
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}
.showcase-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.3s;
}
.showcase-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.showcase-card .sc-img {
  height: 200px;
  background: linear-gradient(135deg, #f0fdf4, #dcfce7);
  display: flex; align-items: center; justify-content: center;
  font-size: 48px;
}
.showcase-card .sc-body { padding: 20px; }
.showcase-card .sc-body h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.showcase-card .sc-body p { font-size: 13px; color: var(--text-muted); }

/* 数据跑马灯 */
.stats-strip {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  padding: 48px 0;
}
.stats-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-around;
  text-align: center;
}
.stat-item .stat-num { font-size: 36px; font-weight: 800; color: #fff; }
.stat-item .stat-label { font-size: 14px; color: rgba(255,255,255,0.8); margin-top: 4px; }

/* CTA */
.cta-section { padding: 80px 0; background: #fff; text-align: center; }
.cta-section h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.cta-section p { font-size: 16px; color: var(--text-muted); margin-bottom: 32px; }
.cta-qr {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.cta-qr .qr-box {
  width: 160px; height: 160px;
  background: var(--bg-gray);
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 80px;
  border: 2px dashed var(--border);
}
.cta-qr span { font-size: 14px; color: var(--text-muted); }

@media (max-width: 900px) {
  .app-hero-inner { flex-direction: column; text-align: center; }
  .app-hero-text h1 { font-size: 32px; }
  .app-hero-text .subtitle { max-width: 100%; }
  .app-hero-btns { justify-content: center; }
  .app-hero-mockup { flex: 0 0 auto; }
  .features-grid { grid-template-columns: 1fr; }
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-inner { flex-wrap: wrap; gap: 24px; }
}
@media (max-width: 500px) {
  .showcase-grid { grid-template-columns: 1fr; }
}