/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: 'PingFang SC', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      font-weight: 400;
      line-height: 1.75;
      color: #1E2B2C;
      background-color: #FAF7F4;
      -webkit-font-smoothing: antialiased;
    }
    .font-inter {
      font-family: 'Inter', system-ui, Helvetica, Arial, sans-serif;
    }
    h1, h2, h3 {
      letter-spacing: -0.02em;
      font-weight: 600;
    }
    .section-spacing {
      padding-top: 100px;
      padding-bottom: 100px;
    }
    @media (max-width: 768px) {
      .section-spacing {
        padding-top: 64px;
        padding-bottom: 64px;
      }
    }
    .container {
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    @media (min-width: 1024px) {
      .container {
        padding-left: 32px;
        padding-right: 32px;
      }
    }
    .nav-blur {
      background: rgba(250, 247, 244, 0.9);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0,0,0,0.04);
    }
    .nav-link {
      position: relative;
      font-weight: 500;
      color: #1E2B2C;
      transition: color 0.2s;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -4px;
      width: 0;
      height: 2px;
      background: #3A5A40;
      transition: width 0.25s ease;
    }
    .nav-link:hover::after,
    .nav-link.active::after {
      width: 100%;
    }
    .hamburger-line {
      display: block;
      width: 24px;
      height: 2px;
      background: #1E2B2C;
      margin: 5px 0;
      transition: 0.2s;
    }
    .open .hamburger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .open .hamburger-line:nth-child(2) { opacity: 0; }
    .open .hamburger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .btn-primary {
      background: #3A5A40;
      color: white;
      border-radius: 8px;
      padding: 14px 32px;
      font-weight: 600;
      transition: background 0.22s, box-shadow 0.22s;
      display: inline-block;
      text-align: center;
    }
    .btn-primary:hover { background: #2b4531; box-shadow: 0 6px 14px rgba(0,0,0,0.1); }
    .btn-outline {
      background: transparent;
      border: 1.5px solid #3A5A40;
      color: #3A5A40;
      border-radius: 8px;
      padding: 14px 32px;
      font-weight: 600;
      transition: background 0.22s, color 0.22s;
    }
    .btn-outline:hover { background: rgba(58,90,64,0.08); }
    .btn-accent {
      background: #D49A3E;
      color: white;
      border-radius: 8px;
      padding: 14px 32px;
      font-weight: 600;
      transition: background 0.22s;
    }
    .btn-accent:hover { background: #c2872f; }
    .card-hover {
      transition: transform 0.28s, box-shadow 0.28s;
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
    }
    .faq-chevron {
      transition: transform 0.25s;
    }
    .faq-item.open .faq-chevron {
      transform: rotate(180deg);
    }
    .waterfall-grid {
      column-count: 3;
      column-gap: 24px;
    }
    @media (max-width: 1024px) {
      .waterfall-grid { column-count: 2; }
    }
    @media (max-width: 640px) {
      .waterfall-grid { column-count: 1; }
    }
    .waterfall-item {
      break-inside: avoid;
      margin-bottom: 24px;
      display: inline-block;
      width: 100%;
    }
    .mobile-menu {
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.3s, visibility 0.3s;
    }
    .mobile-menu.open {
      opacity: 1;
      visibility: visible;
    }