/* roulang page: index */
@import url('/assets/css/vendor/7d0d260fcb-all.min.css');

    :root {
      --deep-indigo: #1E1B4B;
      --electric-cyan: #00F0FF;
      --warm-amber: #F59E0B;
      --dark-slate: #1F2937;
      --light-bg: #F8FAFC;
      --soft-gray: #F1F5F9;
      --white: #FFFFFF;
      --border-light: rgba(0,0,0,0.04);
      --shadow-card: 0 4px 20px rgba(0,0,0,0.04);
      --shadow-hover: 0 8px 30px rgba(0,0,0,0.08);
      --radius-card: 12px;
      --radius-btn: 8px;
      --font-xl: 2.75rem;
      --font-h2: 2rem;
      --font-h3: 1.25rem;
      --font-body: 1rem;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: 'Inter', '思源黑体', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      background-color: var(--light-bg);
      color: var(--dark-slate);
      line-height: 1.7;
      font-size: var(--font-body);
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    button, input, select {
      font-family: inherit;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }
    /* 导航毛玻璃 */
    .glass-nav {
      background: rgba(255,255,255,0.8);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(0,0,0,0.02);
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
    }
    .pill-tag {
      padding: 0.4rem 1.2rem;
      border-radius: 40px;
      font-weight: 500;
      font-size: 0.9rem;
      transition: all 0.2s ease;
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .pill-active {
      background: var(--electric-cyan);
      color: #0f172a;
      border-color: var(--electric-cyan);
      font-weight: 600;
      box-shadow: 0 0 8px rgba(0,240,255,0.6);
    }
    .pill-inactive {
      background: transparent;
      color: var(--dark-slate);
      border-color: #cbd5e1;
    }
    .pill-inactive:hover {
      border-color: var(--electric-cyan);
      color: var(--deep-indigo);
      background: rgba(0,240,255,0.05);
    }
    .btn-primary {
      background: var(--electric-cyan);
      color: #0f172a;
      font-weight: 600;
      padding: 0.7rem 2rem;
      border-radius: var(--radius-btn);
      border: none;
      transition: all 0.25s;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      letter-spacing: 0.3px;
    }
    .btn-primary:hover {
      background: #33f5ff;
      box-shadow: 0 0 16px rgba(0,240,255,0.65);
      transform: translateY(-1px);
    }
    .btn-secondary {
      background: transparent;
      border: 2px solid var(--deep-indigo);
      color: var(--deep-indigo);
      font-weight: 600;
      padding: 0.65rem 1.8rem;
      border-radius: var(--radius-btn);
      transition: 0.25s;
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }
    .btn-secondary:hover {
      background: var(--deep-indigo);
      color: white;
    }
    .card {
      background: var(--white);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      transition: all 0.25s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .section-padding {
      padding: 5rem 0;
    }
    h1 {
      font-size: var(--font-xl);
      font-weight: 700;
      color: var(--deep-indigo);
      line-height: 1.2;
    }
    h2 {
      font-size: var(--font-h2);
      font-weight: 700;
      color: var(--deep-indigo);
      margin-bottom: 2.5rem;
    }
    h3 {
      font-size: var(--font-h3);
      font-weight: 600;
      color: var(--dark-slate);
    }
    .accent-number {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--electric-cyan);
      line-height: 1.1;
    }
    .amber-number {
      color: var(--warm-amber);
      font-weight: 800;
    }
    .decor-line {
      height: 4px;
      width: 50px;
      background: var(--electric-cyan);
      margin-top: 0.5rem;
      margin-bottom: 1.25rem;
    }
    .faq-item {
      border-radius: 8px;
      overflow: hidden;
      margin-bottom: 12px;
      background: white;
      border-left: 4px solid var(--electric-cyan);
      transition: background 0.2s;
    }
    .faq-question {
      padding: 1.25rem 1.8rem;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: white;
    }
    .faq-answer {
      padding: 0 1.8rem 1.25rem;
      color: var(--dark-slate);
      display: none;
      background: #f9fafb;
    }
    .faq-item.active .faq-answer {
      display: block;
    }
    .faq-item.active {
      background: #f9fafb;
    }
    /* 汉堡菜单 */
    .mobile-menu {
      display: none;
    }
    @media (max-width: 768px) {
      h1 { font-size: 2rem; }
      h2 { font-size: 1.75rem; }
      .section-padding { padding: 3.5rem 0; }
      .desktop-nav { display: none; }
      .mobile-menu { display: block; }
      .card:hover { transform: none; }
    }
    .particle-bg {
      position: relative;
      background-color: var(--deep-indigo);
      overflow: hidden;
    }
    .particle {
      position: absolute;
      width: 3px;
      height: 3px;
      background: rgba(255,255,255,0.3);
      border-radius: 50%;
      animation: float 6s infinite ease-in-out;
    }
    @keyframes float {
      0% { transform: translateY(0px) scale(1); opacity: 0.4; }
      50% { transform: translateY(-25px) scale(1.5); opacity: 0.7; }
      100% { transform: translateY(0px) scale(1); opacity: 0.4; }
    }
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-grid .card:nth-child(4),
    .service-grid .card:nth-child(5) {
      grid-column: span 1;
    }
    @media (min-width: 769px) {
      .service-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .service-grid .card:nth-child(4) {
        grid-column: 2 / 3;
      }
      .service-grid .card:nth-child(5) {
        grid-column: 3 / 4;
      }
    }
    @media (max-width: 768px) {
      .service-grid {
        grid-template-columns: 1fr;
      }
      .service-grid .card:nth-child(4),
      .service-grid .card:nth-child(5) {
        grid-column: auto;
      }
    }
    .hero-data-board {
      background: rgba(255,255,255,0.9);
      backdrop-filter: blur(4px);
      border-radius: 16px;
      padding: 1.8rem;
      box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    }