/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    
    :root {
      --ant-black: #1E1E1E;
      --energy-orange: #F85C3C;
      --earth-brown: #8B6F4C;
      --sand-stone: #F5F0E8;
      --fluo-green: #A3D900;
      --text-primary: #1E1E1E;
      --text-secondary: #5A5A5A;
      --text-on-dark: #FFFFFF;
      --card-bg: #FFFFFF;
      --card-shadow: 0 4px 20px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.03);
      --card-shadow-hover: 0 12px 32px rgba(0,0,0,0.08);
      --glass-bg: rgba(30,30,30,0.25);
      --glass-bg-solid: rgba(30,30,30,0.95);
      --border-light: rgba(255,255,255,0.15);
      --border-soft: #E5DDD2;
      --radius-card: 16px;
      --radius-btn: 50px;
      --transition-bounce: cubic-bezier(0.25, 0.8, 0.25, 1.2);
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Inter', sans-serif;
      background-color: var(--sand-stone);
      color: var(--text-primary);
      line-height: 1.7;
      margin: 0;
      -webkit-font-smoothing: antialiased;
    }

    .container-custom {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    @media (max-width: 640px) {
      .container-custom {
        padding-left: 16px;
        padding-right: 16px;
      }
    }

    /* 导航玻璃效果 */
    .nav-glass {
      background: var(--glass-bg);
      backdrop-filter: blur(20px) saturate(180%);
      -webkit-backdrop-filter: blur(20px) saturate(180%);
      border-bottom: 1px solid var(--border-light);
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
      transition: background 0.3s ease, box-shadow 0.3s ease;
    }

    .nav-scrolled {
      background: var(--glass-bg-solid);
      box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    }

    .nav-link {
      color: rgba(255,255,255,0.9);
      font-weight: 500;
      transition: color 0.2s, text-decoration 0.2s;
      text-underline-offset: 4px;
      text-decoration-thickness: 2px;
    }

    .nav-link:hover {
      color: var(--energy-orange);
      text-decoration: underline;
    }

    .btn-primary {
      background: var(--energy-orange);
      color: white;
      border-radius: var(--radius-btn);
      padding: 16px 36px;
      font-weight: 600;
      font-size: 1rem;
      letter-spacing: 0.3px;
      box-shadow: 0 8px 24px rgba(248,92,60,0.3);
      transition: all 0.3s var(--transition-bounce);
      display: inline-block;
      text-align: center;
      border: none;
      cursor: pointer;
    }

    .btn-primary:hover {
      background: #E04A2E;
      box-shadow: 0 12px 28px rgba(248,92,60,0.4);
      transform: scale(1.03);
    }

    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--ant-black);
      color: var(--ant-black);
      border-radius: var(--radius-btn);
      padding: 14px 34px;
      font-weight: 600;
      transition: all 0.3s ease;
      display: inline-block;
      text-align: center;
    }

    .btn-outline:hover {
      background: var(--ant-black);
      color: white;
    }

    .card-modern {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      padding: 2.5rem 2rem;
      box-shadow: var(--card-shadow);
      transition: all 0.3s var(--transition-bounce);
      height: 100%;
    }

    .card-modern:hover {
      box-shadow: var(--card-shadow-hover);
      transform: translateY(-4px);
    }

    .service-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      transition: all 0.3s var(--transition-bounce);
    }

    .service-card:hover {
      box-shadow: var(--card-shadow-hover);
      transform: translateY(-6px);
    }

    .service-card img {
      transition: transform 0.4s ease;
    }

    .service-card:hover img {
      transform: scale(1.03);
    }

    .testimonial-card {
      background: #F9F6F0;
      border-radius: 12px;
      padding: 2rem;
      border: 1px solid rgba(139,111,76,0.15);
    }

    /* FAQ 手风琴 */
    .faq-item {
      border-bottom: 1px solid var(--border-soft);
      padding: 20px 0;
    }

    .faq-question {
      font-weight: 600;
      font-size: 1.125rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: color 0.2s;
    }

    .faq-question:hover {
      color: var(--energy-orange);
    }

    .faq-icon {
      color: var(--energy-orange);
      font-size: 1.5rem;
      transition: transform 0.3s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding-top 0.4s ease;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding-top: 16px;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* 数据数字动效 */
    .counter-number {
      font-weight: 800;
      color: var(--ant-black);
      line-height: 1.2;
    }

    /* 装饰 */
    .section-title-decor {
      width: 40px;
      height: 2px;
      background: var(--earth-brown);
      display: inline-block;
      margin-bottom: 0.5rem;
    }

    .hero-overlay {
      background: linear-gradient(180deg, rgba(30,30,30,0.75) 0%, rgba(30,30,30,0.35) 100%);
    }

    @media (max-width: 768px) {
      .btn-primary {
        padding: 14px 28px;
        font-size: 0.95rem;
      }
    }

    @media (max-width: 640px) {
      .card-modern {
        padding: 1.8rem 1.5rem;
      }
    }

.animate-fadeInUp {
      animation: fadeInUp 1s ease forwards;
    }
    @keyframes fadeInUp {
      0% { opacity: 0; transform: translateY(30px); }
      100% { opacity: 1; transform: translateY(0); }
    }