/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');

    :root {
      --primary-purple: #7B2FFF;
      --primary-cyan: #00F0FF;
      --accent-pink: #FF2D78;
      --bg-deep: #0A0E17;
      --card-bg: #141B24;
      --text-white: #F0F2F5;
      --text-secondary: #8892A6;
      --border-subtle: rgba(255, 255, 255, 0.06);
      --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
      --shadow-hover: 0 8px 40px rgba(123, 47, 255, 0.25);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --radius-pill: 100px;
      --font-h1: 48px;
      --font-h2: 36px;
      --font-h3: 24px;
      --font-body: 16px;
      --font-caption: 13px;
    }

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

    body {
      font-family: 'Inter', 'PingFang SC', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      background-color: var(--bg-deep);
      color: var(--text-white);
      line-height: 1.6;
      font-size: var(--font-body);
      -webkit-font-smoothing: antialiased;
      scroll-behavior: smooth;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 背景网格纹理 */
    .bg-grid {
      background-image: radial-gradient(circle, rgba(255,255,255,0.03) 1px, transparent 1px);
      background-size: 30px 30px;
    }

    /* 导航样式 */
    .nav-blur {
      background: rgba(10, 14, 23, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
    }

    .logo-text {
      background: linear-gradient(135deg, var(--primary-purple), var(--primary-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      font-weight: 800;
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .search-box {
      background: rgba(255, 255, 255, 0.08);
      border-radius: 24px;
      border: 1px solid transparent;
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      padding: 0 16px;
      height: 44px;
    }
    .search-box:focus-within {
      border-color: var(--primary-cyan);
      background: rgba(255, 255, 255, 0.12);
      box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
    }
    .search-box input {
      background: transparent;
      border: none;
      outline: none;
      color: var(--text-white);
      width: 100%;
      font-size: 15px;
    }
    .search-box input::placeholder {
      color: var(--text-secondary);
    }

    .nav-link {
      color: var(--text-secondary);
      font-weight: 500;
      transition: color 0.2s;
      font-size: 15px;
    }
    .nav-link:hover {
      color: var(--primary-cyan);
    }

    /* 按钮系统 */
    .btn-primary {
      background: linear-gradient(135deg, var(--primary-purple), var(--primary-cyan));
      border: none;
      color: white;
      font-weight: 700;
      border-radius: var(--radius-pill);
      padding: 14px 32px;
      font-size: 16px;
      cursor: pointer;
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      box-shadow: 0 4px 15px rgba(123, 47, 255, 0.3);
      text-decoration: none;
    }
    .btn-primary:hover {
      box-shadow: 0 0 28px rgba(0, 240, 255, 0.6);
      transform: translateY(-2px);
    }

    .btn-outline {
      background: transparent;
      border: 1.5px solid rgba(255, 255, 255, 0.5);
      color: white;
      font-weight: 600;
      border-radius: var(--radius-pill);
      padding: 14px 32px;
      font-size: 16px;
      cursor: pointer;
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
    }
    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: white;
      transform: translateY(-2px);
    }

    .card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      transition: all 0.35s ease;
      border: 1px solid var(--border-subtle);
    }
    .card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-6px);
      border-color: rgba(123, 47, 255, 0.3);
    }

    .badge-pink {
      background: rgba(255, 45, 120, 0.15);
      color: var(--accent-pink);
      font-weight: 700;
      border-radius: var(--radius-sm);
      padding: 4px 12px;
      font-size: 13px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .section-title {
      font-size: var(--font-h2);
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 16px;
      background: linear-gradient(to right, #fff, #ccc);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    /* 粒子动画仿效 */
    .hero-glow {
      position: relative;
      overflow: hidden;
    }
    .hero-glow::before {
      content: "";
      position: absolute;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(123,47,255,0.2) 0%, transparent 70%);
      top: -100px;
      left: -100px;
      z-index: 0;
    }
    .hero-glow::after {
      content: "";
      position: absolute;
      width: 350px;
      height: 350px;
      background: radial-gradient(circle, rgba(0,240,255,0.15) 0%, transparent 70%);
      bottom: -80px;
      right: -80px;
      z-index: 0;
    }

    /* 服务切换高亮 */
    .service-item.active {
      border-left: 4px solid var(--accent-pink);
      background: rgba(123, 47, 255, 0.1);
    }
    .service-item.active .service-title {
      color: var(--primary-cyan);
    }

    /* FAQ手风琴 */
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.4s ease;
    }
    .faq-item.open .faq-answer {
      max-height: 200px;
      padding: 16px 0;
    }
    .faq-item.open .faq-question i {
      transform: rotate(180deg);
    }

    /* 案例遮罩 */
    .case-card .case-overlay {
      background: linear-gradient(to top, rgba(10,14,23,0.95) 0%, transparent 60%);
      transition: all 0.3s ease;
    }
    .case-card:hover .case-overlay {
      background: linear-gradient(to top, rgba(10,14,23,1) 0%, rgba(20,27,36,0.7) 100%);
    }

    @media (max-width: 768px) {
      :root {
        --font-h1: 36px;
        --font-h2: 28px;
        --font-h3: 20px;
      }
      .container {
        padding: 0 20px;
      }
      .mobile-menu {
        display: none;
        flex-direction: column;
        background: var(--card-bg);
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        padding: 20px;
        border-bottom: 1px solid var(--border-subtle);
        z-index: 50;
      }
      .mobile-menu.open {
        display: flex;
      }
      .case-grid {
        columns: 2;
      }
    }

    @media (max-width: 520px) {
      .case-grid {
        columns: 1;
      }
    }