/* roulang page: index */
:root {
      --primary-deep: #0A0E27;
      --primary-surface: #141832;
      --accent-cyan: #00F0FF;
      --accent-red: #FF4655;
      --bg-dark: #0A0E27;
      --bg-card-light: #FFFFFF;
      --bg-light-gray: #F5F6FA;
      --text-white: #FFFFFF;
      --text-light-muted: #B0B8D0;
      --text-dark: #1A1F36;
      --text-gray: #5A6070;
      --border-light: rgba(0,240,255,0.2);
      --shadow-card: 0 4px 20px rgba(0,240,255,0.08);
      --shadow-hover: 0 12px 32px rgba(0,240,255,0.18);
      --radius-card: 16px;
      --radius-btn: 10px;
      --radius-badge: 20px;
      --font-mono: 'Roboto Mono', 'Inter', monospace;
      --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', sans-serif;
      --transition: 0.3s ease;
      --gradient-brand: linear-gradient(135deg, #0A0E27 0%, #1A2040 50%, #0F1530 100%);
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: var(--font-sans);
      background-color: var(--primary-deep);
      color: var(--text-white);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    
    /* 导航 */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 72px;
      background: rgba(10, 14, 39, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      z-index: 1000;
      border-bottom: 1px solid rgba(0,240,255,0.15);
      display: flex;
      align-items: center;
    }
    
    .nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    
    .logo {
      display: flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
      color: white;
      font-weight: 700;
      font-size: 1.5rem;
    }
    
    .logo i {
      color: var(--accent-cyan);
      font-size: 2rem;
    }
    
    .logo span {
      color: white;
    }
    
    .logo .highlight {
      color: var(--accent-cyan);
    }
    
    .nav-links {
      display: flex;
      gap: 32px;
      list-style: none;
    }
    
    .nav-links a {
      text-decoration: none;
      color: var(--text-light-muted);
      font-weight: 500;
      font-size: 1rem;
      transition: color var(--transition);
      position: relative;
    }
    
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent-cyan);
      transition: width var(--transition);
    }
    
    .nav-links a:hover {
      color: var(--accent-cyan);
    }
    
    .nav-links a:hover::after {
      width: 100%;
    }
    
    .nav-actions {
      display: flex;
      gap: 12px;
      align-items: center;
    }
    
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: 1rem;
      letter-spacing: 0.5px;
      text-decoration: none;
      transition: all var(--transition);
      cursor: pointer;
      border: 2px solid transparent;
      min-height: 44px;
      white-space: nowrap;
    }
    
    .btn-primary {
      background: var(--accent-cyan);
      color: var(--primary-deep);
      border-color: var(--accent-cyan);
    }
    
    .btn-primary:hover {
      background: #33f5ff;
      box-shadow: 0 0 16px rgba(0,240,255,0.5);
    }
    
    .btn-outline {
      border: 2px solid var(--accent-cyan);
      color: var(--accent-cyan);
      background: transparent;
    }
    
    .btn-outline:hover {
      background: rgba(0,240,255,0.15);
    }
    
    .btn-ghost {
      border: 2px solid rgba(255,255,255,0.8);
      color: white;
      background: transparent;
    }
    
    .btn-ghost:hover {
      background: rgba(255,255,255,0.1);
    }
    
    .hamburger {
      display: none;
      font-size: 1.8rem;
      color: white;
      cursor: pointer;
    }
    
    /* Hero */
    .hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      background: var(--gradient-brand);
      position: relative;
      overflow: hidden;
      padding-top: 72px;
    }
    
    .hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.25;
      z-index: 0;
    }
    
    .hero-content {
      display: flex;
      align-items: center;
      gap: 60px;
      position: relative;
      z-index: 2;
      width: 100%;
    }
    
    .hero-text {
      flex: 1;
    }
    
    .hero-text h1 {
      font-size: 3rem;
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 24px;
    }
    
    .hero-text .subtitle {
      font-size: 1.25rem;
      color: var(--text-light-muted);
      margin-bottom: 40px;
    }
    
    .hero-cta {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    
    .hero-visual {
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 24px;
      align-items: center;
    }
    
    .dashboard-cards {
      display: flex;
      flex-direction: column;
      gap: 12px;
      width: 100%;
      max-width: 400px;
    }
    
    .glass-card {
      background: rgba(255,255,255,0.05);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(0,240,255,0.25);
      border-radius: var(--radius-card);
      padding: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: white;
    }
    
    .team {
      font-weight: 600;
    }
    
    .score {
      font-family: var(--font-mono);
      font-size: 2rem;
      font-weight: 700;
      color: var(--accent-cyan);
    }
    
    .hero-badges {
      display: flex;
      gap: 20px;
      margin-top: 40px;
      flex-wrap: wrap;
    }
    
    .badge {
      background: rgba(0,240,255,0.1);
      border-radius: var(--radius-badge);
      padding: 12px 28px;
      text-align: center;
      backdrop-filter: blur(5px);
    }
    
    .badge-number {
      font-family: var(--font-mono);
      font-size: 2rem;
      font-weight: 700;
      color: var(--accent-cyan);
    }
    
    .badge-label {
      font-size: 0.85rem;
      color: var(--text-light-muted);
    }
    
    /* 板块通用 */
    .section {
      padding: 100px 0;
    }
    
    .section-title {
      font-size: 2.25rem;
      font-weight: 600;
      margin-bottom: 16px;
      text-align: center;
    }
    
    .section-desc {
      color: var(--text-light-muted);
      text-align: center;
      max-width: 700px;
      margin: 0 auto 60px;
    }
    
    /* 痛点 */
    .pain-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    
    .pain-list {
      display: flex;
      flex-direction: column;
      gap: 28px;
    }
    
    .pain-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    
    .pain-icon {
      color: var(--accent-red);
      font-size: 1.8rem;
    }
    
    .comparison-table {
      background: rgba(255,255,255,0.03);
      border-radius: var(--radius-card);
      padding: 24px;
      border: 1px solid var(--border-light);
    }
    
    .comp-row {
      display: flex;
      justify-content: space-between;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .highlight-col {
      color: var(--accent-cyan);
      font-weight: 600;
    }
    
    /* 解决方案卡片 */
    .cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    
    .solution-card {
      background: var(--primary-surface);
      border-radius: var(--radius-card);
      padding: 32px 24px;
      transition: all var(--transition);
      border: 1px solid transparent;
    }
    
    .solution-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent-cyan);
    }
    
    .card-icon {
      font-size: 2.2rem;
      color: var(--accent-cyan);
      margin-bottom: 20px;
    }
    
    .feature-list {
      list-style: none;
      margin-top: 16px;
    }
    
    .feature-list li {
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    
    /* 成果看板 */
    .metrics-scroll {
      display: flex;
      gap: 24px;
      overflow-x: auto;
      padding-bottom: 10px;
    }
    
    .metric-badge {
      background: rgba(0,240,255,0.08);
      border-radius: var(--radius-badge);
      padding: 24px 40px;
      text-align: center;
      min-width: 200px;
    }
    
    /* 证言 */
    .testimonials {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    
    .testimonial-card {
      background: var(--bg-card-light);
      color: var(--text-dark);
      border-radius: var(--radius-card);
      padding: 28px;
      border-left: 6px solid var(--accent-cyan);
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    
    .testimonial-img {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ddd;
      overflow: hidden;
    }
    
    .testimonial-text {
      font-style: italic;
      color: var(--text-gray);
    }
    
    /* FAQ */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
    }
    
    .faq-item {
      background: rgba(255,255,255,0.03);
      border-radius: 10px;
      margin-bottom: 12px;
      overflow: hidden;
    }
    
    .faq-question {
      padding: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      cursor: pointer;
      background: transparent;
      border: none;
      color: white;
      width: 100%;
      text-align: left;
      font-size: 1.1rem;
    }
    
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: rgba(0,240,255,0.05);
      padding: 0 20px;
    }
    
    .faq-answer.open {
      max-height: 300px;
      padding: 20px;
    }
    
    /* CTA */
    .cta-section {
      background: linear-gradient(135deg, #00F0FF 0%, #FF4655 100%);
      text-align: center;
    }
    
    .cta-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }
    
    /* 页脚 */
    .footer {
      background: #0A0E27;
      border-top: 1px solid var(--accent-cyan);
      padding: 60px 0 20px;
    }
    
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
    }
    
    .copyright {
      text-align: center;
      margin-top: 40px;
      color: var(--text-gray);
    }
    
    @media (max-width: 1023px) {
      .nav-links, .nav-actions {
        display: none;
      }
      .hamburger {
        display: block;
      }
      .hero-content {
        flex-direction: column;
      }
      .cards-grid, .testimonials {
        grid-template-columns: 1fr 1fr;
      }
      .pain-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    
    @media (max-width: 767px) {
      .cards-grid, .testimonials {
        grid-template-columns: 1fr;
      }
      .hero-text h1 {
        font-size: 2.2rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }