/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    
    :root {
      --primary: #FF6A3D;
      --primary-hover: #e55a2f;
      --secondary: #1A1A2E;
      --gradient-start: #FF6A3D;
      --gradient-mid: #E8453C;
      --gradient-end: #1A1A2E;
      --bg: #FAFAFA;
      --card-bg: #FFFFFF;
      --text-title: #1A1A2E;
      --text-body: #3A3A4A;
      --text-muted: #7A7A8A;
      --text-white: #FFFFFF;
      --border-light: #E0E0E6;
      --shadow-sm: 0 4px 20px rgba(26,26,46,0.06);
      --shadow-md: 0 8px 30px rgba(26,26,46,0.12);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Inter', system-ui, -apple-system, sans-serif;
      --font-number: 'Roboto', 'DIN Alternate', 'Inter', sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--bg);
      color: var(--text-body);
      line-height: 1.6;
      margin: 0;
      -webkit-font-smoothing: antialiased;
    }

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

    /* 导航玻璃态 */
    .nav-glass {
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 2px 20px rgba(0,0,0,0.03);
      transition: background 0.3s ease, box-shadow 0.3s ease;
    }
    .nav-scrolled {
      background: rgba(255, 255, 255, 0.98);
      box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    }

    /* 渐变文字/背景 */
    .gradient-text {
      background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .gradient-bg {
      background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-mid) 70%, var(--gradient-end) 100%);
    }

    /* 按钮动效 */
    .btn-primary {
      background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid));
      color: white;
      border-radius: var(--radius-sm);
      font-weight: 600;
      transition: all 0.25s ease;
      box-shadow: 0 4px 14px rgba(255,106,61,0.3);
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      filter: brightness(1.1);
      transform: scale(1.02);
      box-shadow: 0 8px 22px rgba(255,106,61,0.4);
    }
    .btn-primary:active {
      transform: translateY(2px);
      box-shadow: 0 2px 8px rgba(255,106,61,0.3);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
      border-radius: var(--radius-sm);
      font-weight: 600;
      transition: all 0.25s ease;
    }
    .btn-outline:hover {
      background: rgba(255,106,61,0.08);
      border-color: var(--primary-hover);
      color: var(--primary-hover);
    }
    .btn-white {
      background: rgba(255,255,255,0.15);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255,255,255,0.3);
      color: white;
      border-radius: var(--radius-sm);
      font-weight: 600;
      transition: all 0.3s ease;
    }
    .btn-white:hover {
      background: white;
      color: var(--primary);
      border-color: white;
    }

    /* 脉冲光晕 */
    .pulse-glow {
      animation: pulseGlow 2s infinite;
    }
    @keyframes pulseGlow {
      0% { box-shadow: 0 0 0 0 rgba(255,106,61,0.5); }
      70% { box-shadow: 0 0 0 12px rgba(255,106,61,0); }
      100% { box-shadow: 0 0 0 0 rgba(255,106,61,0); }
    }

    /* 卡片hover */
    .card-hover {
      transition: transform 0.25s ease, box-shadow 0.3s ease;
    }
    .card-hover:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
    }

    /* 服务卡片图片缩放 */
    .service-img-scale {
      transition: transform 0.4s ease;
    }
    .service-card:hover .service-img-scale {
      transform: scale(1.05);
    }
    .service-card:hover .arrow-circle {
      background-color: var(--primary);
      color: white;
    }

    /* 案例滚动 */
    .case-scroll {
      scroll-snap-type: x mandatory;
      -webkit-overflow-scrolling: touch;
      scrollbar-width: none;
      overflow-x: auto;
      display: flex;
      gap: 24px;
      padding-bottom: 16px;
    }
    .case-scroll::-webkit-scrollbar {
      display: none;
    }
    .case-card {
      scroll-snap-align: start;
      flex: 0 0 320px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: white;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .case-card:hover .case-overlay {
      opacity: 1;
    }
    .case-overlay {
      background: linear-gradient(to top, rgba(26,26,46,0.85) 0%, transparent 60%);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    /* 方案切换动画 */
    .solution-content {
      transition: opacity 0.4s ease, transform 0.3s ease;
    }
    .solution-hidden {
      opacity: 0;
      transform: translateX(10px);
      pointer-events: none;
    }

    /* FAQ图标旋转 */
    .faq-icon {
      transition: transform 0.3s ease;
    }
    .faq-active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s ease;
      background: #F5F5FA;
      border-radius: 0 0 12px 12px;
    }
    .faq-active .faq-answer {
      max-height: 200px;
      padding: 16px;
    }

    /* 下划线动画 */
    .link-underline {
      position: relative;
    }
    .link-underline::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: width 0.25s ease;
    }
    .link-underline:hover::after {
      width: 100%;
    }

    @media (max-width: 768px) {
      .container {
        padding: 0 16px;
      }
      .case-card {
        flex: 0 0 260px;
      }
    }