.features-section {
  background: #fff;
  padding: 48px 0 32px 0;
}

.features-row {
  display: flex;
  justify-content: center;
  gap: 48px;
  max-width: 900px;
  margin: 0 auto;
  flex-wrap: nowrap;
}

.feature-item {
  background: #f5f6fa;
  border-radius: 16px;
  box-shadow: 0 2px 8px #e3e3e3;
  padding: 32px 24px;
  width: 240px;
  text-align: center;
  margin-bottom: 24px;
  transition: box-shadow 0.2s, transform 0.2s;
  opacity: 0;
  transform: translateY(40px);
  animation: fadeInUp 0.8s cubic-bezier(.77, 0, .18, 1) forwards;
}

.feature-item:nth-child(1) {
  animation-delay: 0.1s;
}

.feature-item:nth-child(2) {
  animation-delay: 0.3s;
}

.feature-item:nth-child(3) {
  animation-delay: 0.5s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-item img {
  margin-bottom: 16px;
}

.feature-item h3 {
  font-size: 1.2rem;
  color: #5865F2;
  margin-bottom: 12px;
}

.feature-item p {
  font-size: 1rem;
  color: #222;
  margin: 0;
}

.feature-item:hover {
  box-shadow: 0 4px 16px #d1d1d1;
  transform: translateY(-4px) scale(1.03);
}

@media (max-width: 900px) {
  .features-row {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }

  .feature-item {
    width: 90vw;
  }
}

body {
  margin: 0;
  font-family: 'Segoe UI', 'Inter', Arial, sans-serif;
  background: #f5f6fa;
  color: #222;
  overflow-x: hidden;
}

.hero {
  /* 删除多余的 '}'，恢复样式结构 */
  position: relative;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: #f5f6fa;
  overflow: hidden;
}

/* 移除 animated-bg 及相关动画，简化背景 */

.navbar {
  width: calc(100% - 96px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 48px;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  box-shadow: none;
  transition: background 0.3s, box-shadow 0.3s;
}

.navbar.scrolled {
  background: #f5f6fa;
  box-shadow: 0 2px 8px #e3e3e3;
}

.logo {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: #5865F2;
  display: flex;
  flex-direction: row;
  align-items: center;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
}




.hero-content {
  z-index: 2;
  text-align: center;
  margin-top: 120px;
}

.title {
  font-size: 2.6rem;
  font-weight: 700;
  color: #222;
  margin-bottom: 18px;
  letter-spacing: 2px;
}

.subtitle {
  font-size: 1.2rem;
  color: #5865F2;
  margin-bottom: 28px;
}

.cta-btn {
  display: inline-block;
  padding: 12px 36px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  background: #5865F2;
  border: none;
  border-radius: 24px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}

.cta-btn:hover {
  background: #4752C4;
  transform: scale(1.05);
}

/* 只隐藏未用区块，保留 features-section、download-section 显示 */
.intro-section,
.features,
.feature-card,
.icon {
  display: none;
}

.download-section {
  background: #f5f6fa;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-bottom: 32px;
}

.download-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.download-btn {
  display: inline-block;
  margin-top: 18px;
  padding: 12px 36px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  background: #5865F2;
  border: none;
  border-radius: 24px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}

.download-btn:hover {
  background: #4752C4;
  transform: scale(1.05);
}

footer {
  background: #fff;
  color: #5865F2;
  text-align: center;
  padding: 24px 0 12px 0;
  font-size: 1rem;
  letter-spacing: 1px;
}

@media (max-width: 900px) {
  .navbar {
    padding: 18px 8px 0 8px;
  }
}

@media (max-width: 600px) {
  .title {
    font-size: 1.5rem;
  }

  .subtitle {
    font-size: 0.95rem;
  }

  .download-card {
    width: 90vw;
  }
}