.xchat-pc-container {
  width: 100%;
  overflow-x: hidden;
  margin: 0;
  padding: 40px 0 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #0a0a0a;
}

.xchat-pc-container .max-w-6xl {
  max-width: 1280px !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

.xchat-pc-container .btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%) !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  border-radius: 12px !important;
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3) !important;
  font-weight: 600 !important;
  padding: 14px 28px !important;
  font-size: 16px !important;
  letter-spacing: 0.01em !important;
}

.xchat-pc-container .btn-primary:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 20px 40px rgba(59, 130, 246, 0.4) !important;
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%) !important;
}

.xchat-pc-container .download-btn {
  background: #1f1f1f !important;
  color: #3b82f6 !important;
  border-radius: 12px !important;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3) !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  font-weight: 600 !important;
  border: 2px solid #374151 !important;
  padding: 12px 24px !important;
  font-size: 16px !important;
}

.xchat-pc-container .download-btn:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 15px 35px rgba(59, 130, 246, 0.2) !important;
  border-color: #3b82f6 !important;
}

.xchat-pc-container .content-section {
  padding: 80px 0 !important;
}

.xchat-pc-container .section-title {
  font-size: 36px !important;
  font-weight: 800 !important;
  margin-bottom: 40px !important;
  text-align: center !important;
  color: #fff !important;
  letter-spacing: -0.03em !important;
  position: relative !important;
}

.xchat-pc-container .section-title::after {
  content: "" !important;
  position: absolute !important;
  bottom: -15px !important;
  left: 50% !important;
  transform: translateX(-50%) !important;
  width: 60px !important;
  height: 4px !important;
  background: linear-gradient(90deg, #3b82f6, #1d4ed8) !important;
  border-radius: 100px !important;
}

.xchat-pc-container h1,
.xchat-pc-container h2,
.xchat-pc-container h3,
.xchat-pc-container h4,
.xchat-pc-container h5,
.xchat-pc-container h6 {
  font-weight: 800 !important;
  line-height: 1.15 !important;
  margin-bottom: 1.5rem !important;
  color: #fff !important;
  letter-spacing: -0.02em !important;
}

.xchat-pc-container h1 {
  font-size: 42px !important;
}

.xchat-pc-container h2 {
  font-size: 32px !important;
}

.xchat-pc-container h3 {
  font-size: 24px !important;
}

.xchat-pc-container p {
  margin-bottom: 1.5rem !important;
  font-size: 16px !important;
  line-height: 1.8 !important;
  color: #9ca3af !important;
}

.xchat-pc-container a {
  color: #3b82f6 !important;
  text-decoration: none !important;
  transition: all 0.3s ease !important;
  font-weight: 600 !important;
}

.xchat-pc-container a:hover {
  color: #2563eb !important;
  text-decoration: underline !important;
}

.xchat-pc-container .feature-card {
  background: #1f1f1f !important;
  border-radius: 20px !important;
  padding: 32px !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3) !important;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  text-align: center !important;
}

.xchat-pc-container .feature-card:hover {
  transform: translateY(-12px) !important;
  box-shadow: 0 25px 50px rgba(59, 130, 246, 0.2) !important;
  border-color: rgba(59, 130, 246, 0.3) !important;
}

.xchat-pc-container .system-card {
  background: #1f1f1f !important;
  border-radius: 16px !important;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3) !important;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  padding: 24px !important;
}

.xchat-pc-container .system-card:hover {
  box-shadow: 0 15px 35px rgba(59, 130, 246, 0.2) !important;
  border-color: rgba(59, 130, 246, 0.3) !important;
}

.xchat-pc-container .faq-card {
  background: #1f1f1f !important;
  border-radius: 16px !important;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3) !important;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  margin: 0 0 16px !important;
  padding: 16px !important;
}

.xchat-pc-container .faq-card:hover {
  box-shadow: 0 15px 35px rgba(59, 130, 246, 0.2) !important;
  border-color: rgba(59, 130, 246, 0.3) !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

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

.xchat-pc-container .animate-fade-in {
  animation: fadeIn 0.8s ease-out forwards !important;
  opacity: 0;
}

.xchat-pc-container .animation-delay-200 {
  animation-delay: 0.2s !important;
}

.xchat-pc-container .animation-delay-400 {
  animation-delay: 0.4s !important;
}

.xchat-pc-container .animation-delay-600 {
  animation-delay: 0.6s !important;
}

.xchat-pc-container .animation-delay-800 {
  animation-delay: 0.8s !important;
}

.xchat-pc-container .animation-delay-1000 {
  animation-delay: 1s !important;
}

.xchat-pc-container .animation-delay-1200 {
  animation-delay: 1.2s !important;
}

.xchat-pc-container .animation-delay-1400 {
  animation-delay: 1.4s !important;
}

.xchat-pc-container .animation-delay-1600 {
  animation-delay: 1.6s !important;
}

.xchat-pc-container .animation-delay-1800 {
  animation-delay: 1.8s !important;
}

.xchat-pc-container .animation-delay-2000 {
  animation-delay: 2s !important;
}

@media (max-width: 768px) {
  .xchat-pc-container .content-section {
    padding: 60px 0 !important;
  }

  .xchat-pc-container .section-title {
    font-size: 28px !important;
    margin-bottom: 30px !important;
  }

  .xchat-pc-container h1 {
    font-size: 32px !important;
  }

  .xchat-pc-container h2 {
    font-size: 24px !important;
  }

  .xchat-pc-container h3 {
    font-size: 20px !important;
  }
}