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

    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      font-weight: 300;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      text-rendering: optimizeLegibility;
      position: relative;
      min-height: 100vh;
      overflow-x: hidden;
    }

    /* 背景渐变层 */
    body::before {
      content: '';
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
      z-index: -2;
    }

    /* 背景图片层 - 半透明 */
    body::after {
      content: '';
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('images/background.png');
      background-size: cover;
      background-position: center;
      background-attachment: fixed;
      opacity: 0.3;
      z-index: -1;
    }

    /* Navbar 毛玻璃效果 */
    .navbar {
      position: sticky;
      top: 0;
      background: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(12px) saturate(180%);
      -webkit-backdrop-filter: blur(12px) saturate(180%);
      border: 1px solid rgba(255, 255, 255, 0.3);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
      z-index: 100;
      padding: 0.5rem 3rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-radius: 0;
      margin: 0;
    }

    .navbar.shrink {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(16px) saturate(180%);
      -webkit-backdrop-filter: blur(16px) saturate(180%);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
      padding: 0.5rem 3rem;
      border-radius: 0;
      margin: 0;
    }

    /* Navbar链接样式 */
    .navbar a {
      font-weight: 600;
      color: #1f2937;
    }

    /* Hero Section */
    .hero-section {
      min-height: 85vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 4rem 2rem;
    }

    .hero-title {
      font-family: 'Inter', sans-serif;
      font-weight: 300 !important;
      letter-spacing: -1px;
    }

    .hero-subtitle {
      font-family: 'Inter', sans-serif;
      font-weight: 300;
      font-style: normal;
    }

    /* 统计卡片 - 毛玻璃效果 */
    .feature-badge {
      background: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(10px) saturate(180%);
      -webkit-backdrop-filter: blur(10px) saturate(180%);
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 12px;
      padding: 0.5rem 1rem;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.875rem;
      font-weight: 400;
      color: #374151;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    /* 按钮样式 */
    .btn-primary {
      background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%);
      color: #ffffff !important;
      padding: 0.5rem 1.25rem;
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3);
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      transition: all 0.3s ease;
      border: none;
      cursor: pointer;
      font-family: 'Inter', sans-serif;
      font-weight: 300 !important;
      font-size: 0.8125rem;
      text-decoration: none;
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(25, 118, 210, 0.4);
      background: linear-gradient(135deg, #1565c0 0%, #0d47a1 100%);
      color: #ffffff !important;
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      color: #374151;
      padding: 0.875rem 1.75rem;
      border: 1px solid rgba(55, 65, 81, 0.3);
      border-radius: 12px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      transition: all 0.3s ease;
      cursor: pointer;
      font-family: 'Inter', sans-serif;
      font-weight: 400;
      text-decoration: none;
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: rgba(255, 255, 255, 0.95);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    /* Comparison Section - 灰色背景 */
    .comparison-section {
      padding: 5rem 2rem;
      background: rgba(229, 231, 235, 0.5);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
    }

    /* 对比卡片 - 毛玻璃效果 */
    .comparison-card {
      background: rgba(255, 255, 255, 0.75);
      backdrop-filter: blur(12px) saturate(180%);
      -webkit-backdrop-filter: blur(12px) saturate(180%);
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 20px;
      padding: 1.25rem;
      transition: all 0.3s ease;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    }

    .comparison-card:hover {
      transform: translateY(-6px);
      background: rgba(255, 255, 255, 0.85);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    }

    .comparison-card h3 {
      font-family: 'Inter', sans-serif;
      font-weight: 400;
    }

    /* Steps Section */
    .steps-section {
      padding: 2.5rem 2rem;
    }

    .step-card {
      background: rgba(255, 255, 255, 0.75);
      backdrop-filter: blur(10px) saturate(180%);
      -webkit-backdrop-filter: blur(10px) saturate(180%);
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 16px;
      padding: 2rem;
      text-align: center;
      transition: all 0.3s ease;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
    }

    .step-card:hover {
      transform: translateY(-6px);
      background: rgba(255, 255, 255, 0.9);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    }

    .step-card h3 {
      font-family: 'Inter', sans-serif;
      font-weight: 400;
    }

    .step-number {
      width: 30px;
      height: 30px;
      background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%);
      color: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.875rem;
      font-weight: 400;
      margin: 0 auto 1rem;
    }

    /* Feature Cards */
    .feature-card {
      background: rgba(255, 255, 255, 0.75);
      backdrop-filter: blur(10px) saturate(180%);
      -webkit-backdrop-filter: blur(10px) saturate(180%);
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 16px;
      padding: 2rem;
      transition: all 0.3s ease;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
    }

    .feature-card:hover {
      transform: translateY(-6px);
      background: rgba(255, 255, 255, 0.9);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    }

    .feature-card h3 {
      font-family: 'Inter', sans-serif;
      font-weight: 400;
    }

    /* FAQ */
    .faq-item {
      background: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(10px) saturate(180%);
      -webkit-backdrop-filter: blur(10px) saturate(180%);
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 12px;
      margin-bottom: 1rem;
      overflow: hidden;
      transition: all 0.3s ease;
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    }

    .faq-item:hover {
      background: rgba(255, 255, 255, 0.85);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    }

    .faq-question {
      padding: 0.75rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-family: 'Inter', sans-serif;
      font-weight: 400;
      color: #1f2937;
      transition: color 0.3s ease;
    }

    .faq-question:hover {
      color: #374151;
    }

    .faq-icon {
      width: 20px;
      height: 20px;
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }

    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      color: #6b7280;
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 0.75rem 0.75rem;
    }

    /* Section Titles */
    .section-title {
      font-family: 'Inter', sans-serif;
      font-size: 3rem;
      font-weight: 300;
      color: #111827;
      text-align: center;
      margin-bottom: 1rem;
    }

    .section-subtitle {
      font-size: 1.125rem;
      color: #6b7280;
      text-align: center;
      margin-bottom: 3rem;
    }

    /* 响应式设计 */
    @media (max-width: 1024px) {
      .navbar, .navbar.shrink {
        margin: 0;
        border-radius: 0;
        padding: 0.5rem 2rem;
      }
    }

    @media (max-width: 768px) {
      .navbar, .navbar.shrink {
        margin: 0;
        padding: 0.5rem 1rem;
      }

      .section-title {
        font-size: 2rem;
      }
    }

    /* 平滑滚动 */
    html {
      scroll-behavior: smooth;
    }

    /* 覆盖 Tailwind 粗体类，使用更细的字重 */
    .font-bold {
      font-weight: 400 !important;
    }

    .font-black {
      font-weight: 500 !important;
    }

    .font-semibold {
      font-weight: 400 !important;
    }

    /* Scrolling Tags Animation */
    .marquee-section {
      padding: 3rem 0;
    }

    .marquee-container {
      width: 100%;
      max-width: 72rem;
      margin: 0 auto;
      position: relative;
    }

    .marquee-container::before,
    .marquee-container::after {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      width: 150px;
      z-index: 10;
      pointer-events: none;
    }

    .marquee-container::before {
      left: 0;
      background: linear-gradient(to right, #f0f2f5 0%, transparent 100%);
    }

    .marquee-container::after {
      right: 0;
      background: linear-gradient(to left, #f0f2f5 0%, transparent 100%);
    }

    .marquee-track {
      display: flex;
      overflow: hidden;
    }

    .marquee-content {
      display: flex;
      gap: 2rem;
      animation-duration: 30s;
      animation-timing-function: linear;
      animation-iteration-count: infinite;
    }

    .marquee-right .marquee-content {
      animation-name: scrollRight;
    }

    .marquee-left .marquee-content {
      animation-name: scrollLeft;
    }

    @keyframes scrollRight {
      0% {
        transform: translateX(0);
      }
      100% {
        transform: translateX(-50%);
      }
    }

    @keyframes scrollLeft {
      0% {
        transform: translateX(-50%);
      }
      100% {
        transform: translateX(0);
      }
    }

    .tag-pill {
      padding: 0.75rem 1.75rem;
      border-radius: 9999px;
      background: #d1d5db;
      color: #374151;
      font-size: 0.875rem;
      white-space: nowrap;
      border: none;
    }

    .logo-pill {
      padding: 0.5rem 1.25rem;
      border-radius: 12px;
      background: white;
      display: flex;
      align-items: center;
      justify-content: center;
      min-width: 140px;
      height: 48px;
      box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    }

    .partner-logo {
      height: 24px;
      width: auto;
      max-width: 110px;
      object-fit: contain;
      filter: grayscale(100%);
      opacity: 0.6;
      transition: all 0.3s ease;
    }

    .logo-pill:hover .partner-logo {
      filter: grayscale(0%);
      opacity: 1;
    }