/* roulang page: index */
:root {
      --primary: #1D4ED8;
      --primary-hover: #2563EB;
      --bg-light: #F8FAFC;
      --card-border: rgba(226, 232, 240, 0.85);
    }
    body {
      background-color: var(--bg-light);
      color: #334155;
      font-family: 'Noto Sans SC', sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .grid-pattern {
      background-image: radial-gradient(#cbd5e1 1.2px, transparent 1.2px);
      background-size: 24px 24px;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(37, 99, 235, 0.12) 0%, rgba(248, 250, 252, 0) 70%);
    }
    .custom-scrollbar::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 4px;
    }

/* roulang page: category2 */
:root {
      --primary: #1D4ED8;
      --primary-hover: #2563EB;
      --bg-light: #F8FAFC;
      --card-border: rgba(226, 232, 240, 0.85);
    }
    body {
      background-color: var(--bg-light);
      color: #334155;
      font-family: 'Noto Sans SC', sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .grid-pattern {
      background-image: radial-gradient(#cbd5e1 1.2px, transparent 1.2px);
      background-size: 24px 24px;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(37, 99, 235, 0.08) 0%, rgba(248, 250, 252, 0) 70%);
    }

/* roulang page: category1 */
:root {
      --primary: #1D4ED8;
      --primary-hover: #2563EB;
      --bg-light: #F8FAFC;
      --card-border: rgba(226, 232, 240, 0.85);
    }
    body {
      background-color: var(--bg-light);
      color: #334155;
      font-family: 'Noto Sans SC', sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .grid-pattern {
      background-image: radial-gradient(#cbd5e1 1.2px, transparent 1.2px);
      background-size: 24px 24px;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 20%, rgba(37, 99, 235, 0.08) 0%, rgba(248, 250, 252, 0) 70%);
    }

/* roulang page: category3 */
:root {
      --primary: #1D4ED8;
      --primary-hover: #2563EB;
      --bg-light: #F8FAFC;
      --card-border: rgba(226, 232, 240, 0.85);
    }
    body {
      background-color: var(--bg-light);
      color: #334155;
      font-family: 'Noto Sans SC', sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .grid-pattern {
      background-image: radial-gradient(#cbd5e1 1.2px, transparent 1.2px);
      background-size: 24px 24px;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(37, 99, 235, 0.12) 0%, rgba(248, 250, 252, 0) 70%);
    }
    .card-transition {
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

/* roulang page: category4 */
:root {
      --primary: #1D4ED8;
      --primary-hover: #2563EB;
      --bg-light: #F8FAFC;
      --card-border: rgba(226, 232, 240, 0.85);
    }
    body {
      background-color: var(--bg-light);
      color: #334155;
      font-family: 'Noto Sans SC', sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .grid-pattern {
      background-image: radial-gradient(#cbd5e1 1.2px, transparent 1.2px);
      background-size: 24px 24px;
    }