/* roulang page: index */
:root {
      --primary: #1B0A3C;
      --secondary: #00E5A0;
      --accent: #D4AF37;
      --bg: #F5F9FF;
      --surface: rgba(255,255,255,0.92);
      --text-primary: #1B0A3C;
      --text-secondary: #4A4A6A;
      --text-ondark: #F5F9FF;
      --font-heading: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      --font-body: 'Noto Serif SC', 'STSong', 'SimSun', serif;
      --radius-card: 16px;
      --radius-btn: 30px;
      --shadow-card: 0 8px 32px rgba(27,10,60,0.08);
      --shadow-hover: 0 12px 40px rgba(0,229,160,0.15);
      --glass-bg: rgba(27,10,60,0.85);
      --glass-blur: blur(20px);
    }
    
    * {
      box-sizing: border-box;
    }
    
    body {
      font-family: var(--font-body);
      background-color: var(--bg);
      color: var(--text-primary);
      margin: 0;
      line-height: 1.8;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    
    h1, h2, h3, h4 {
      font-family: var(--font-heading);
      font-weight: 700;
      letter-spacing: -0.02em;
    }
    
    a {
      text-decoration: none;
      transition: color 0.2s ease;
    }
    
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    
    /* 浮动Dock导航 */
    .galaxy-nav {
      position: fixed;
      top: 24px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 999;
      background: var(--glass-bg);
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
      border-radius: 50px;
      padding: 12px 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 32px;
      box-shadow: 0 12px 28px rgba(0,0,0,0.25);
      border: 1px solid rgba(255,255,255,0.15);
      width: auto;
      max-width: 95vw;
      transition: all 0.3s ease;
    }
    
    .nav-logo {
      font-family: var(--font-heading);
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-ondark);
      white-space: nowrap;
      letter-spacing: 1px;
      background: linear-gradient(135deg, #00E5A0 0%, #D4AF37 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    
    .nav-links {
      display: flex;
      gap: 28px;
      align-items: center;
    }
    
    .nav-links a {
      color: var(--text-ondark);
      font-family: var(--font-heading);
      font-weight: 500;
      font-size: 0.95rem;
      transition: 0.2s;
      position: relative;
      padding-bottom: 4px;
    }
    
    .nav-links a:hover {
      color: var(--secondary);
    }
    
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 50%;
      transform: translateX(-50%);
      width: 6px;
      height: 6px;
      background: var(--secondary);
      border-radius: 50%;
    }
    
    .nav-cta {
      background: var(--secondary);
      color: var(--primary);
      font-family: var(--font-heading);
      font-weight: 700;
      padding: 10px 24px;
      border-radius: 30px;
      font-size: 0.9rem;
      white-space: nowrap;
      transition: 0.3s;
      border: none;
      cursor: pointer;
    }
    
    .nav-cta:hover {
      background: #00C48C;
      transform: translateY(-2px);
    }
    
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-ondark);
      font-size: 1.8rem;
      cursor: pointer;
    }
    
    /* Hero双栏 */
    .hero-section {
      min-height: 90vh;
      display: flex;
      align-items: center;
      background: linear-gradient(135deg, #1B0A3C 0%, #2D1B4E 100%);
      position: relative;
      overflow: hidden;
      padding: 120px 0 80px;
    }
    
    .hero-bg-particle {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: radial-gradient(circle at 30% 40%, rgba(0,229,160,0.08) 0%, transparent 50%);
      pointer-events: none;
    }
    
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    
    .hero-text h1 {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--text-ondark);
      line-height: 1.2;
      text-shadow: 0 2px 20px rgba(0,229,160,0.3);
      margin-bottom: 24px;
    }
    
    .hero-subtitle {
      font-size: 1.25rem;
      color: rgba(245,249,255,0.85);
      max-width: 500px;
      margin-bottom: 36px;
    }
    
    .hero-buttons {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }
    
    .btn-primary {
      background: var(--secondary);
      color: var(--primary);
      font-weight: 700;
      padding: 14px 36px;
      border-radius: 30px;
      font-family: var(--font-heading);
      transition: 0.3s;
      display: inline-block;
      border: none;
      cursor: pointer;
    }
    
    .btn-primary:hover {
      background: #00C48C;
      transform: translateY(-2px);
      color: var(--primary);
    }
    
    .btn-secondary {
      border: 2px solid var(--secondary);
      color: var(--secondary);
      background: transparent;
      padding: 14px 36px;
      border-radius: 30px;
      font-weight: 700;
      font-family: var(--font-heading);
      transition: 0.3s;
      display: inline-block;
    }
    
    .btn-secondary:hover {
      background: rgba(0,229,160,0.1);
      color: var(--secondary);
    }
    
    .hero-image {
      border-radius: 24px;
      border: 2px solid rgba(0,229,160,0.3);
      box-shadow: 0 20px 60px rgba(0,0,0,0.5);
      overflow: hidden;
    }
    
    /* 板块标题 */
    .section-head {
      text-align: center;
      margin-bottom: 56px;
    }
    
    .section-head h2 {
      font-size: 2.5rem;
      color: var(--primary);
      margin-bottom: 16px;
    }
    
    .section-head .divider {
      width: 60px;
      height: 4px;
      background: var(--secondary);
      border-radius: 2px;
      margin: 16px auto;
    }
    
    .section-head p {
      color: var(--text-secondary);
      max-width: 650px;
      margin: 0 auto;
      font-size: 1.1rem;
    }
    
    /* 卡片通用 */
    .card {
      background: rgba(255,255,255,0.85);
      backdrop-filter: blur(8px);
      border-radius: var(--radius-card);
      padding: 32px;
      box-shadow: var(--shadow-card);
      transition: 0.3s;
      height: 100%;
    }
    
    .card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    
    /* 亮点网格 */
    .highlights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    
    .highlight-icon {
      font-size: 2.5rem;
      color: var(--secondary);
      margin-bottom: 20px;
    }
    
    /* 案例瀑布 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }
    
    .solution-card img {
      border-radius: 12px;
      margin-bottom: 20px;
      transition: transform 0.3s;
      width: 100%;
      height: auto;
    }
    
    .solution-card:hover img {
      transform: scale(1.02);
    }
    
    .tag {
      background: rgba(0,229,160,0.1);
      color: var(--primary);
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 600;
      margin-right: 8px;
      display: inline-block;
    }
    
    /* 对比表 */
    .comparison-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    
    .plan-card {
      background: white;
      border-radius: 20px;
      padding: 36px 24px;
      box-shadow: var(--shadow-card);
      text-align: center;
      border: 1px solid rgba(0,0,0,0.03);
    }
    
    .plan-featured {
      border: 2px solid var(--secondary);
      position: relative;
    }
    
    .plan-badge {
      position: absolute;
      top: -14px;
      right: 20px;
      background: var(--accent);
      color: var(--primary);
      padding: 4px 18px;
      border-radius: 20px;
      font-weight: 700;
      font-size: 0.8rem;
    }
    
    /* FAQ */
    .accordion-item {
      margin-bottom: 12px;
      border-radius: 12px;
      overflow: hidden;
    }
    
    .accordion-title {
      background: white;
      padding: 20px 28px;
      font-weight: 700;
      font-family: var(--font-heading);
      border-left: 4px solid var(--secondary);
      cursor: pointer;
      transition: 0.2s;
    }
    
    .accordion-content {
      background: rgba(255,255,255,0.9);
      padding: 0 28px 20px;
      color: var(--text-secondary);
    }
    
    /* 联系 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
    }
    
    .contact-form input, .contact-form textarea {
      border-radius: 12px;
      border: 1px solid #E0E0E0;
      padding: 14px;
      margin-bottom: 16px;
      transition: 0.2s;
    }
    
    .contact-form input:focus, .contact-form textarea:focus {
      border-color: var(--secondary);
      outline: none;
    }
    
    .footer {
      background: var(--primary);
      color: var(--text-ondark);
      padding: 64px 0 24px;
      margin-top: 80px;
    }
    
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
    }
    
    @media (max-width: 1023px) {
      .hero-grid, .contact-grid, .footer-grid {
        grid-template-columns: 1fr;
      }
      .solutions-grid, .comparison-grid {
        grid-template-columns: 1fr;
      }
      .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    
    @media (max-width: 639px) {
      .galaxy-nav {
        top: auto;
        bottom: 0;
        left: 0;
        transform: none;
        width: 100%;
        border-radius: 24px 24px 0 0;
        padding: 12px 20px;
        justify-content: space-between;
      }
      .nav-links, .nav-cta.desktop-cta {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-text h1 {
        font-size: 2.2rem;
      }
      .highlights-grid {
        grid-template-columns: 1fr;
      }
    }