/* roulang page: index */
:root {
      --brand-primary: #4F46E5;
      --brand-hover: #4338CA;
      --accent-color: #059669;
      --carbon-bg: #0B0F17;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-light: rgba(226, 232, 240, 0.85);
      --card-radius: 1rem;
      --shadow-soft: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.03);
    }
    html, body {
      font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", sans-serif);
      color: var(--text-main);
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .custom-container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .card-hover-fx {
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-hover-fx:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 30px -10px rgba(79, 70, 229, 0.12);
      border-color: rgba(99, 102, 241, 0.35);
    }
    .grid-pattern {
      background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
      background-size: 24px 24px;
    }
    .sticky-bar-active {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
      backdrop-filter: blur(16px);
      background-color: rgba(255, 255, 255, 0.94);
    }
    input:focus, textarea:focus {
      outline: none;
      border-color: var(--brand-primary);
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }