/* roulang page: index */
:root {
      --bg-base: #0D0714;
      --bg-alt: #140D1F;
      --bg-card: rgba(255, 255, 255, 0.04);
      --bg-card-hover: rgba(255, 255, 255, 0.07);
      --border-card: rgba(255, 255, 255, 0.09);
      --border-card-hover: rgba(193, 53, 132, 0.45);
      --brand-gradient: linear-gradient(135deg, #6B11FF 0%, #C13584 100%);
      --brand-glow: 0 10px 30px rgba(107, 17, 255, 0.35);
      --text-main: #FFFFFF;
      --text-muted: #D1C7DE;
      --text-dim: #8E82A3;
      --accent-orange: #FF6B35;
      --accent-gold: #FFC837;
      --radius-card: 24px;
      --radius-sm: 12px;
      --transition-base: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-muted);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition-base);
    }
    a:hover {
      color: #FFFFFF;
    }
    h1, h2, h3, h4, h5, h6 {
      color: var(--text-main);
      font-weight: 700;
      line-height: 1.35;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1030;
      background: rgba(13, 7, 20, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 16px 0;
    }
    .navbar-brand-custom {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-size: 1.4rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: #FFFFFF;
    }
    .brand-icon-box {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.2rem;
      box-shadow: 0 4px 15px rgba(193, 53, 132, 0.4);
    }
    .nav-link-custom {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 16px;
      border-radius: 8px;
      position: relative;
    }
    .nav-link-custom:hover,
    .nav-link-custom.active {
      color: #FFFFFF;
      background: rgba(255, 255, 255, 0.05);
    }
    .nav-link-custom.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 16px;
      right: 16px;
      height: 2px;
      background: var(--brand-gradient);
      border-radius: 2px;
    }
    .btn-brand-primary {
      background: var(--brand-gradient);
      color: #FFFFFF;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: 999px;
      border: none;
      box-shadow: var(--brand-glow);
      transition: var(--transition-base);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 35px rgba(107, 17, 255, 0.5);
      color: #FFFFFF;
    }
    .btn-brand-outline {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.16);
      color: #FFFFFF;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: 999px;
      transition: var(--transition-base);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.35);
      color: #FFFFFF;
    }
    .section-spacing {
      padding: 90px 0;
      position: relative;
    }
    .bg-zebra {
      background-color: var(--bg-alt);
      border-top: 1px solid rgba(255, 255, 255, 0.03);
      border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }
    .section-title-wrap {
      margin-bottom: 54px;
      text-align: center;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 999px;
      background: rgba(107, 17, 255, 0.15);
      border: 1px solid rgba(107, 17, 255, 0.3);
      color: #D1A3FF;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.25rem;
      letter-spacing: -0.5px;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-dim);
      max-width: 720px;
      margin: 0 auto;
    }
    .big-card {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      padding: 36px 32px;
      transition: var(--transition-base);
      height: 100%;
      position: relative;
      overflow: hidden;
    }
    .big-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-card-hover);
      transform: translateY(-6px);
      box-shadow: 0 20px 40px rgba(107, 17, 255, 0.18);
    }
    .hero-section {
      padding: 100px 0 90px;
      position: relative;
      background: radial-gradient(circle at 80% 20%, rgba(193, 53, 132, 0.22) 0%, transparent 60%),
                  radial-gradient(circle at 10% 80%, rgba(107, 17, 255, 0.2) 0%, transparent 60%),
                  url('/assets/images/0b29b460a8264478.webp') center center/cover no-repeat;
      background-blend-mode: overlay;
    }
    .hero-mask {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(13, 7, 20, 0.88) 0%, rgba(13, 7, 20, 0.96) 100%);
      z-index: 1;
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-h1 {
      font-size: 3rem;
      font-weight: 800;
      letter-spacing: -1px;
      line-height: 1.25;
      margin-bottom: 24px;
      background: linear-gradient(180deg, #FFFFFF 0%, #E0D1F5 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.15rem;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 36px;
    }
    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 999px;
      padding: 6px 16px;
      font-size: 0.88rem;
      margin-bottom: 20px;
      backdrop-filter: blur(8px);
    }
    .hero-image-stage {
      position: relative;
      border-radius: 28px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.15);
      box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
    }
    .hero-image-stage img {
      width: 100%;
      height: 420px;
      object-fit: cover;
      display: block;
    }
    .metric-badge-box {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(13, 7, 20, 0.82);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 16px;
      padding: 16px 20px;
      display: flex;
      justify-content: space-around;
      align-items: center;
    }
    .metric-item {
      text-align: center;
    }
    .metric-number {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--accent-gold);
      line-height: 1;
    }
    .metric-label {
      font-size: 0.75rem;
      color: var(--text-dim);
      margin-top: 4px;
    }
    .pain-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: rgba(255, 107, 53, 0.12);
      border: 1px solid rgba(255, 107, 53, 0.3);
      color: var(--accent-orange);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 22px;
    }
    .sol-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: rgba(107, 17, 255, 0.15);
      border: 1px solid rgba(107, 17, 255, 0.35);
      color: #C13584;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 22px;
    }
    .step-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--brand-gradient);
      color: #fff;
      font-weight: 800;
      font-size: 1.1rem;
      margin-bottom: 20px;
      box-shadow: 0 4px 15px rgba(107, 17, 255, 0.3);
    }
    .stat-card-big {
      background: linear-gradient(145deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      padding: 40px 30px;
      text-align: center;
      height: 100%;
    }
    .stat-num-giant {
      font-size: 3.2rem;
      font-weight: 800;
      letter-spacing: -1px;
      background: linear-gradient(135deg, #FFC837 0%, #FF6B35 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 8px;
    }
    .quote-box {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      padding: 36px;
      height: 100%;
      position: relative;
    }
    .quote-icon {
      font-size: 2.2rem;
      color: rgba(193, 53, 132, 0.4);
      margin-bottom: 12px;
    }
    .client-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .category-entry-card {
      border-radius: var(--radius-card);
      background: linear-gradient(135deg, rgba(107, 17, 255, 0.18) 0%, rgba(193, 53, 132, 0.12) 100%);
      border: 1px solid rgba(193, 53, 132, 0.35);
      padding: 40px 36px;
      transition: var(--transition-base);
      display: block;
    }
    .category-entry-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255, 200, 55, 0.6);
      box-shadow: 0 20px 45px rgba(193, 53, 132, 0.3);
    }
    .news-card {
      background: var--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      overflow: hidden;
      transition: var(--transition-base);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-card-hover);
      transform: translateY(-5px);
      box-shadow: 0 16px 36px rgba(107, 17, 255, 0.22);
    }
    .news-thumb-box {
      position: relative;
      height: 210px;
      overflow: hidden;
      background: #1d132b;
    }
    .news-thumb-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .news-card:hover .news-thumb-box img {
      transform: scale(1.06);
    }
    .news-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(13, 7, 20, 0.75);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 999px;
      padding: 4px 12px;
      font-size: 0.75rem;
      color: #fff;
      font-weight: 600;
    }
    .news-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-time {
      font-size: 0.8rem;
      color: var(--text-dim);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .news-summary {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .accordion-item-custom {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: 16px !important;
      margin-bottom: 14px;
      overflow: hidden;
    }
    .accordion-button-custom {
      background: transparent !important;
      color: #FFFFFF !important;
      font-weight: 600;
      font-size: 1.05rem;
      padding: 20px 24px;
      box-shadow: none !important;
      border: none;
    }
    .accordion-button-custom:not(.collapsed) {
      color: #D1A3FF !important;
      background: rgba(255, 255, 255, 0.03) !important;
    }
    .accordion-button-custom::after {
      filter: invert(1) brightness(0.8);
    }
    .accordion-body-custom {
      padding: 0 24px 22px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }
    .cta-glow-card {
      background: linear-gradient(135deg, rgba(107, 17, 255, 0.28) 0%, rgba(193, 53, 132, 0.22) 100%);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 32px;
      padding: 60px 48px;
      position: relative;
      overflow: hidden;
      box-shadow: 0 30px 70px rgba(107, 17, 255, 0.25);
    }
    .form-control-custom {
      background: rgba(13, 7, 20, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: 12px;
      color: #FFFFFF;
      padding: 14px 18px;
      font-size: 0.95rem;
    }
    .form-control-custom:focus {
      background: rgba(13, 7, 20, 0.9);
      border-color: #C13584;
      color: #FFFFFF;
      box-shadow: 0 0 0 0.25rem rgba(193, 53, 132, 0.25);
    }
    .form-control-custom::placeholder {
      color: #8E82A3;
    }
    .site-footer {
      background: #08040C;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 70px 0 30px;
      font-size: 0.9rem;
    }
    .footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links a {
      color: var(--text-dim);
    }
    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .copyright-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 26px;
      margin-top: 50px;
      color: #6C627F;
      font-size: 0.85rem;
    }
    @media (max-width: 991px) {
      .hero-h1 {
        font-size: 2.3rem;
      }
      .section-title {
        font-size: 1.85rem;
      }
      .section-spacing {
        padding: 60px 0;
      }
      .hero-section {
        padding: 70px 0 60px;
      }
      .cta-glow-card {
        padding: 40px 24px;
      }
      .big-card {
        padding: 26px 20px;
      }
    }
    @media (max-width: 576px) {
      .hero-h1 {
        font-size: 1.85rem;
      }
      .metric-badge-box {
        position: static;
        margin-top: 16px;
        flex-direction: column;
        gap: 12px;
      }
    }

/* roulang page: article */
:root {
      --bg-base: #0D0714;
      --bg-alt: #140D1F;
      --bg-card: rgba(255, 255, 255, 0.04);
      --bg-card-hover: rgba(255, 255, 255, 0.07);
      --border-card: rgba(255, 255, 255, 0.09);
      --border-card-hover: rgba(193, 53, 132, 0.45);
      --brand-gradient: linear-gradient(135deg, #6B11FF 0%, #C13584 100%);
      --brand-glow: 0 10px 30px rgba(107, 17, 255, 0.35);
      --text-main: #FFFFFF;
      --text-muted: #D1C7DE;
      --text-dim: #8E82A3;
      --accent-orange: #FF6B35;
      --accent-gold: #FFC837;
      --radius-card: 24px;
      --radius-sm: 12px;
      --transition-base: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-muted);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.8;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition-base);
    }
    a:hover {
      color: #FFFFFF;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1030;
      background: rgba(13, 7, 20, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 16px 0;
    }
    .navbar-brand-custom {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-size: 1.4rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: #FFFFFF;
    }
    .brand-icon-box {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.2rem;
      box-shadow: 0 4px 15px rgba(193, 53, 132, 0.4);
    }
    .nav-link-custom {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 16px;
      border-radius: 8px;
      position: relative;
    }
    .nav-link-custom:hover,
    .nav-link-custom.active {
      color: #FFFFFF;
      background: rgba(255, 255, 255, 0.05);
    }
    .nav-link-custom.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 16px;
      right: 16px;
      height: 2px;
      background: var(--brand-gradient);
      border-radius: 2px;
    }
    .btn-brand-primary {
      background: var(--brand-gradient);
      color: #FFFFFF;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: 999px;
      border: none;
      box-shadow: var(--brand-glow);
      transition: var(--transition-base);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 35px rgba(107, 17, 255, 0.5);
      color: #FFFFFF;
    }
    .btn-brand-outline {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.16);
      color: #FFFFFF;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: 999px;
      transition: var(--transition-base);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.35);
      color: #FFFFFF;
    }
    .section-spacing {
      padding: 70px 0;
      position: relative;
    }
    .bg-zebra {
      background-color: var(--bg-alt);
      border-top: 1px solid rgba(255, 255, 255, 0.03);
      border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }
    .big-card {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      padding: 36px 32px;
      transition: var(--transition-base);
      position: relative;
      overflow: hidden;
    }
    .article-header-card {
      padding: 48px 40px;
      background: linear-gradient(135deg, rgba(107, 17, 255, 0.08) 0%, rgba(193, 53, 132, 0.05) 100%), var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
    }
    .article-breadcrumb {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-dim);
      margin-bottom: 24px;
      flex-wrap: wrap;
    }
    .article-breadcrumb a:hover {
      color: var(--accent-gold);
    }
    .article-title-h1 {
      font-size: 2.6rem;
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.5px;
      color: #FFFFFF;
      margin-bottom: 24px;
    }
    .article-meta-bar {
      display: flex;
      align-items: center;
      gap: 20px;
      flex-wrap: wrap;
      padding-top: 18px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.9rem;
      color: var(--text-dim);
    }
    .article-meta-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .article-tag-badge {
      display: inline-flex;
      align-items: center;
      padding: 4px 12px;
      border-radius: 999px;
      background: rgba(107, 17, 255, 0.2);
      border: 1px solid rgba(107, 17, 255, 0.4);
      color: #D1A3FF;
      font-size: 0.82rem;
      font-weight: 600;
    }
    .article-lead-card {
      background: rgba(255, 255, 255, 0.03);
      border-left: 4px solid #C13584;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      padding: 24px 30px;
      margin: 32px 0 44px;
      font-size: 1.1rem;
      line-height: 1.85;
      color: #E6DCF5;
      position: relative;
    }
    .article-lead-label {
      font-size: 0.8rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--accent-gold);
      font-weight: 700;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .article-body-content {
      font-size: 1.08rem;
      line-height: 1.95;
      color: var(--text-muted);
    }
    .article-body-content p {
      margin-bottom: 24px;
    }
    .article-body-content h2 {
      font-size: 1.85rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-top: 48px;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      position: relative;
    }
    .article-body-content h2::after {
      content: '';
      position: absolute;
      bottom: -1px;
      left: 0;
      width: 60px;
      height: 2px;
      background: var(--brand-gradient);
    }
    .article-body-content h3 {
      font-size: 1.45rem;
      font-weight: 600;
      color: #FFFFFF;
      margin-top: 36px;
      margin-bottom: 16px;
    }
    .article-body-content ul,
    .article-body-content ol {
      margin-bottom: 26px;
      padding-left: 24px;
    }
    .article-body-content li {
      margin-bottom: 10px;
    }
    .article-body-content blockquote {
      margin: 36px 0;
      padding: 24px 28px;
      background: rgba(107, 17, 255, 0.08);
      border-left: 4px solid #6B11FF;
      border-radius: 0 16px 16px 0;
      font-style: italic;
      color: #FFFFFF;
    }
    .article-body-content img {
      max-width: 100%;
      height: auto;
      border-radius: var(--radius-sm);
      margin: 28px 0;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .article-featured-banner {
      width: 100%;
      height: 380px;
      border-radius: var(--radius-card);
      overflow: hidden;
      margin-bottom: 36px;
      position: relative;
      border: 1px solid var(--border-card);
    }
    .article-featured-banner img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .copyright-declaration-card {
      background: rgba(255, 255, 255, 0.03);
      border: 1px dashed rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 24px 28px;
      margin: 48px 0;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .post-nav-strip {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .post-nav-item {
      flex: 1 1 300px;
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-sm);
      padding: 20px 24px;
      display: flex;
      flex-direction: column;
      gap: 6px;
      transition: var(--transition-base);
    }
    .post-nav-item:hover {
      border-color: var(--border-card-hover);
      background: var(--bg-card-hover);
      transform: translateY(-2px);
    }
    .related-card {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-sm);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: var(--transition-base);
    }
    .related-card:hover {
      border-color: var(--border-card-hover);
      transform: translateY(-4px);
    }
    .related-img-wrap {
      height: 170px;
      position: relative;
      overflow: hidden;
    }
    .related-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .related-card:hover .related-img-wrap img {
      transform: scale(1.05);
    }
    .related-info {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .cta-banner-card {
      background: radial-gradient(circle at 10% 50%, rgba(107, 17, 255, 0.3) 0%, transparent 60%),
                  radial-gradient(circle at 90% 50%, rgba(193, 53, 132, 0.25) 0%, transparent 60%),
                  var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-card);
      padding: 56px 40px;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    }
    .site-footer {
      background: #08040C;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 80px 0 30px;
    }
    .footer-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 22px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links a {
      color: var(--text-dim);
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .copyright-bar {
      margin-top: 60px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.85rem;
      color: var(--text-dim);
    }
    @media (max-width: 991px) {
      .article-title-h1 {
        font-size: 2.1rem;
      }
      .article-header-card {
        padding: 32px 24px;
      }
      .article-featured-banner {
        height: 260px;
      }
      .cta-banner-card {
        padding: 40px 24px;
      }
    }
    @media (max-width: 576px) {
      .article-title-h1 {
        font-size: 1.65rem;
      }
      .article-meta-bar {
        font-size: 0.82rem;
        gap: 12px;
      }
      .article-lead-card {
        font-size: 0.98rem;
        padding: 18px 20px;
      }
      .article-body-content h2 {
        font-size: 1.45rem;
      }
    }

/* roulang page: category1 */
:root {
      --bg-base: #0D0714;
      --bg-alt: #140D1F;
      --bg-card: rgba(255, 255, 255, 0.04);
      --bg-card-hover: rgba(255, 255, 255, 0.07);
      --border-card: rgba(255, 255, 255, 0.09);
      --border-card-hover: rgba(193, 53, 132, 0.45);
      --brand-gradient: linear-gradient(135deg, #6B11FF 0%, #C13584 100%);
      --brand-glow: 0 10px 30px rgba(107, 17, 255, 0.35);
      --text-main: #FFFFFF;
      --text-muted: #D1C7DE;
      --text-dim: #8E82A3;
      --accent-orange: #FF6B35;
      --accent-gold: #FFC837;
      --radius-card: 24px;
      --radius-sm: 12px;
      --transition-base: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-muted);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition-base);
    }
    a:hover {
      color: #FFFFFF;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1030;
      background: rgba(13, 7, 20, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 16px 0;
    }
    .navbar-brand-custom {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-size: 1.4rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: #FFFFFF;
    }
    .brand-icon-box {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.2rem;
      box-shadow: 0 4px 15px rgba(193, 53, 132, 0.4);
    }
    .nav-link-custom {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 16px;
      border-radius: 8px;
      position: relative;
    }
    .nav-link-custom:hover,
    .nav-link-custom.active {
      color: #FFFFFF;
      background: rgba(255, 255, 255, 0.05);
    }
    .nav-link-custom.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 16px;
      right: 16px;
      height: 2px;
      background: var(--brand-gradient);
      border-radius: 2px;
    }
    .btn-brand-primary {
      background: var(--brand-gradient);
      color: #FFFFFF;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: 999px;
      border: none;
      box-shadow: var(--brand-glow);
      transition: var(--transition-base);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 35px rgba(107, 17, 255, 0.5);
      color: #FFFFFF;
    }
    .btn-brand-outline {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.16);
      color: #FFFFFF;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: 999px;
      transition: var(--transition-base);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.35);
      color: #FFFFFF;
    }
    .section-spacing {
      padding: 80px 0;
      position: relative;
    }
    .bg-zebra {
      background-color: var(--bg-alt);
      border-top: 1px solid rgba(255, 255, 255, 0.03);
      border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }
    .section-title-wrap {
      margin-bottom: 48px;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 999px;
      background: rgba(107, 17, 255, 0.15);
      border: 1px solid rgba(107, 17, 255, 0.3);
      color: #D1A3FF;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 700;
      letter-spacing: -0.5px;
      margin-bottom: 14px;
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-dim);
      max-width: 760px;
    }
    .big-card {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      padding: 32px 28px;
      transition: var(--transition-base);
      height: 100%;
      position: relative;
      overflow: hidden;
    }
    .big-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-card-hover);
      transform: translateY(-5px);
      box-shadow: 0 18px 36px rgba(107, 17, 255, 0.18);
    }
    .badge-metric {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 999px;
      padding: 4px 12px;
      font-size: 0.8rem;
      color: #FFFFFF;
      font-weight: 600;
    }
    /* Bento Banner */
    .bento-hero-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      grid-template-rows: auto auto;
      gap: 24px;
    }
    .bento-main {
      grid-column: 1 / 2;
      grid-row: 1 / 3;
      background: linear-gradient(135deg, rgba(107, 17, 255, 0.18) 0%, rgba(193, 53, 132, 0.12) 100%), var(--bg-card);
      border: 1px solid rgba(193, 53, 132, 0.3);
      border-radius: var(--radius-card);
      padding: 48px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .bento-sub-1 {
      grid-column: 2 / 3;
      grid-row: 1 / 2;
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      padding: 30px;
    }
    .bento-sub-2 {
      grid-column: 2 / 3;
      grid-row: 2 / 3;
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      padding: 30px;
    }
    .bento-cta-strip {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 20px;
      padding: 20px 32px;
      margin-top: 24px;
    }
    /* Breadcrumb */
    .crumb-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.88rem;
      color: var(--text-dim);
      margin-bottom: 16px;
    }
    .crumb-nav a:hover {
      color: var(--accent-gold);
    }
    /* Pill Filter */
    .pill-filter-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }
    .pill-filter-btn {
      padding: 8px 20px;
      border-radius: 999px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.09);
      cursor: pointer;
      transition: var(--transition-base);
    }
    .pill-filter-btn:hover,
    .pill-filter-btn.active {
      background: var(--brand-gradient);
      color: #FFFFFF;
      border-color: transparent;
      box-shadow: 0 4px 15px rgba(107, 17, 255, 0.3);
    }
    /* Magazine Layout */
    .article-magazine-card {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition-base);
      height: 100%;
    }
    .article-magazine-card:hover {
      border-color: var(--border-card-hover);
      transform: translateY(-4px);
      box-shadow: 0 16px 32px rgba(107, 17, 255, 0.16);
    }
    .magazine-img-wrap {
      height: 210px;
      width: 100%;
      position: relative;
      overflow: hidden;
    }
    .magazine-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .article-magazine-card:hover .magazine-img-wrap img {
      transform: scale(1.04);
    }
    .magazine-body {
      padding: 26px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .sidebar-widget {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      padding: 28px 24px;
      margin-bottom: 24px;
    }
    .sidebar-widget-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 12px;
    }
    .sidebar-widget-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 32px;
      height: 3px;
      background: var(--brand-gradient);
      border-radius: 2px;
    }
    .sidebar-post-item {
      padding-bottom: 16px;
      margin-bottom: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .sidebar-post-item:last-child {
      padding-bottom: 0;
      margin-bottom: 0;
      border-bottom: none;
    }
    /* Feature Breakdown Banner */
    .feature-deep-box {
      background: radial-gradient(circle at 90% 10%, rgba(193, 53, 132, 0.25) 0%, transparent 60%), var(--bg-card);
      border: 1px solid rgba(193, 53, 132, 0.35);
      border-radius: var(--radius-card);
      padding: 44px;
      position: relative;
    }
    /* Resource Guide Card */
    .resource-card {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-card);
      padding: 32px 28px;
      transition: var(--transition-base);
      height: 100%;
    }
    .resource-card:hover {
      border-color: rgba(255, 107, 53, 0.5);
      transform: translateY(-4px);
    }
    /* FAQ Box */
    .faq-compact-card {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: 18px;
      padding: 24px 28px;
      margin-bottom: 16px;
      transition: var(--transition-base);
    }
    .faq-compact-card:hover {
      border-color: rgba(255, 255, 255, 0.2);
    }
    /* Footer */
    .site-footer {
      background-color: #07030B;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 70px 0 30px;
    }
    .footer-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
      letter-spacing: -0.2px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links a {
      color: var(--text-dim);
      font-size: 0.92rem;
    }
    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .copyright-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 28px;
      margin-top: 50px;
      font-size: 0.86rem;
      color: var(--text-dim);
    }
    @media (max-width: 991px) {
      .bento-hero-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
      }
      .bento-main {
        grid-column: 1 / 2;
        grid-row: 1 / 2;
        padding: 32px 24px;
      }
      .bento-sub-1 {
        grid-column: 1 / 2;
        grid-row: 2 / 3;
      }
      .bento-sub-2 {
        grid-column: 1 / 2;
        grid-row: 3 / 4;
      }
      .section-spacing {
        padding: 60px 0;
      }
      .section-title {
        font-size: 1.8rem;
      }
    }