/* roulang page: index */
:root {
      --brand-blue: #1E56A0;
      --brand-cyan: #00A8CC;
      --brand-mint: #EBF4F6;
      --brand-bg: #F7F9FC;
      --brand-alt-bg: #F0F4F8;
      --brand-text: #162436;
      --brand-muted: #5C6B7A;
      --brand-border: rgba(30, 86, 160, 0.12);
      --card-radius: 18px;
      --shadow-base: 0 8px 24px -4px rgba(30, 86, 160, 0.08), 0 2px 6px -1px rgba(30, 86, 160, 0.04);
      --shadow-hover: 0 16px 32px -6px rgba(30, 86, 160, 0.14);
      --spring-trans: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    }
    body {
      background-color: var(--brand-bg);
      color: var(--brand-text);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    .main-header {
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(30, 86, 160, 0.08);
      z-index: 1050;
    }
    .nav-brand-text {
      font-size: 1.45rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--brand-blue);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }
    .brand-icon-symbol {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--brand-blue), var(--brand-cyan));
      border-radius: 9px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1rem;
      box-shadow: 0 4px 10px rgba(0, 168, 204, 0.3);
    }
    .navbar-nav .nav-link {
      font-size: 0.96rem;
      font-weight: 500;
      color: #38485C;
      padding: 0.5rem 1.1rem;
      position: relative;
      transition: var(--spring-trans);
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
      color: var(--brand-blue);
    }
    .navbar-nav .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 1.1rem;
      right: 1.1rem;
      height: 3px;
      background: var(--brand-blue);
      border-radius: 999px;
    }
    .btn-capsule-outline {
      border: 1.5px solid var(--brand-blue);
      color: var(--brand-blue);
      font-weight: 600;
      padding: 0.45rem 1.35rem;
      border-radius: 999px;
      transition: var(--spring-trans);
      font-size: 0.9rem;
    }
    .btn-capsule-outline:hover {
      background: var(--brand-blue);
      color: #fff;
      box-shadow: 0 6px 16px rgba(30, 86, 160, 0.2);
    }
    .btn-primary-pill {
      background: linear-gradient(135deg, var(--brand-blue), #2a6ec7);
      color: #ffffff !important;
      font-weight: 600;
      padding: 0.8rem 2.2rem;
      border-radius: 999px;
      border: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 8px 20px rgba(30, 86, 160, 0.28);
      transition: var(--spring-trans);
    }
    .btn-primary-pill:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 26px rgba(30, 86, 160, 0.36);
    }
    .hero-angled-box {
      background: linear-gradient(135deg, #0d366b 0%, var(--brand-blue) 60%, #1572b6 100%);
      position: relative;
      padding: 6.5rem 0 7.5rem 0;
      clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
      color: #fff;
      overflow: hidden;
    }
    .hero-angled-box::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: url('/assets/images/10ed43ea1bfd7120.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.12;
      pointer-events: none;
    }
    .hero-badge-capsule {
      background: rgba(255, 255, 255, 0.16);
      border: 1px solid rgba(255, 255, 255, 0.25);
      backdrop-filter: blur(8px);
      padding: 0.35rem 1.1rem;
      border-radius: 999px;
      font-size: 0.86rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #EBF4F6;
      margin-bottom: 1.5rem;
    }
    .hero-title {
      font-size: clamp(2.1rem, 4vw, 3.2rem);
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.5px;
      margin-bottom: 1.5rem;
    }
    .hero-lead-text {
      font-size: 1.08rem;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.9);
      max-width: 820px;
      margin-bottom: 2.2rem;
    }
    .dashboard-panel-card {
      background: rgba(255, 255, 255, 0.95);
      border-radius: var(--card-radius);
      padding: 2.2rem;
      color: var(--brand-text);
      box-shadow: 0 20px 45px rgba(10, 37, 73, 0.18);
      border: 1px solid rgba(255, 255, 255, 0.4);
      position: relative;
    }
    .metric-bubble {
      background: var(--brand-bg);
      border-radius: 14px;
      padding: 1.25rem;
      border: 1px solid var(--brand-border);
      transition: var(--spring-trans);
    }
    .metric-bubble:hover {
      background: #fff;
      transform: translateY(-4px);
      box-shadow: var(--shadow-base);
      border-color: var(--brand-cyan);
    }
    .metric-value {
      font-size: 2rem;
      font-weight: 800;
      color: var(--brand-blue);
      line-height: 1.1;
    }
    .metric-label {
      font-size: 0.88rem;
      color: var(--brand-muted);
      margin-top: 0.35rem;
    }
    .section-spacing {
      padding: 5.5rem 0;
    }
    .section-spacing-alt {
      padding: 5.5rem 0;
      background-color: var(--brand-alt-bg);
    }
    .section-title-wrap {
      margin-bottom: 3.5rem;
    }
    .section-pill-tag {
      display: inline-block;
      padding: 0.3rem 0.95rem;
      background: var(--brand-mint);
      color: var(--brand-blue);
      font-size: 0.82rem;
      font-weight: 700;
      border-radius: 999px;
      letter-spacing: 0.5px;
      margin-bottom: 0.8rem;
    }
    .section-heading {
      font-size: 2rem;
      font-weight: 700;
      color: #122844;
      line-height: 1.35;
      margin-bottom: 0.85rem;
    }
    .section-desc {
      color: var(--brand-muted);
      font-size: 1rem;
      max-width: 760px;
      margin: 0 auto;
      line-height: 1.7;
    }
    .service-card-item {
      background: #fff;
      border-radius: var(--card-radius);
      padding: 2.2rem 1.8rem;
      border: 1px solid var(--brand-border);
      box-shadow: var(--shadow-base);
      transition: var(--spring-trans);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .service-card-item:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 86, 160, 0.28);
    }
    .service-card-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: var(--brand-mint);
      color: var(--brand-blue);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 1.4rem;
    }
    .scenario-card-item {
      background: #fff;
      border-radius: var(--card-radius);
      overflow: hidden;
      box-shadow: var(--shadow-base);
      border: 1px solid var(--brand-border);
      transition: var(--spring-trans);
      height: 100%;
    }
    .scenario-card-item:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .scenario-img-holder {
      position: relative;
      height: 200px;
      overflow: hidden;
    }
    .scenario-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.6s ease;
    }
    .scenario-card-item:hover .scenario-img-holder img {
      transform: scale(1.06);
    }
    .scenario-badge-overlay {
      position: absolute;
      bottom: 12px;
      left: 14px;
      background: rgba(14, 38, 70, 0.75);
      backdrop-filter: blur(6px);
      color: #fff;
      font-size: 0.78rem;
      padding: 0.25rem 0.75rem;
      border-radius: 999px;
    }
    .scenario-body {
      padding: 1.6rem;
    }
    .compare-container {
      background: #fff;
      border-radius: 24px;
      box-shadow: var(--shadow-base);
      overflow: hidden;
      border: 1px solid var(--brand-border);
    }
    .compare-col-legacy {
      background: #F4F7FA;
      padding: 3rem 2.5rem;
    }
    .compare-col-modern {
      background: #FFFFFF;
      padding: 3rem 2.5rem;
      border-left: 1px solid var(--brand-border);
      position: relative;
    }
    .compare-item-box {
      display: flex;
      gap: 12px;
      margin-bottom: 1.35rem;
      align-items: flex-start;
      font-size: 0.95rem;
    }
    .compare-icon-cross {
      color: #9AA7B5;
      font-size: 1.1rem;
      margin-top: 3px;
    }
    .compare-icon-check {
      color: #10B981;
      font-size: 1.15rem;
      margin-top: 3px;
    }
    .timeline-milestone-wrap {
      position: relative;
    }
    .timeline-milestone-wrap::before {
      content: "";
      position: absolute;
      top: 35px;
      left: 30px;
      right: 30px;
      height: 3px;
      background: linear-gradient(90deg, #1E56A0, #00A8CC, #1E56A0);
      z-index: 0;
    }
    @media (max-width: 991px) {
      .timeline-milestone-wrap::before {
        display: none;
      }
    }
    .timeline-node-card {
      background: #fff;
      border-radius: 18px;
      padding: 2rem 1.5rem;
      box-shadow: var(--shadow-base);
      border: 1px solid var(--brand-border);
      position: relative;
      z-index: 1;
      height: 100%;
      text-align: center;
      transition: var(--spring-trans);
    }
    .timeline-node-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .timeline-circle-indicator {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #fff;
      border: 3px solid var(--brand-cyan);
      box-shadow: 0 0 0 4px var(--brand-mint);
      margin: 0 auto 1.4rem auto;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--brand-blue);
      font-size: 1rem;
    }
    .news-focus-card {
      background: #fff;
      border-radius: var(--card-radius);
      overflow: hidden;
      box-shadow: var(--shadow-base);
      border: 1px solid var(--brand-border);
      height: 100%;
      transition: var(--spring-trans);
    }
    .news-focus-card:hover {
      box-shadow: var(--shadow-hover);
    }
    .news-item-strip {
      background: #fff;
      border-radius: 16px;
      padding: 1.25rem;
      border: 1px solid var(--brand-border);
      box-shadow: var(--shadow-base);
      display: flex;
      gap: 16px;
      margin-bottom: 1.1rem;
      transition: var(--spring-trans);
      align-items: center;
    }
    .news-item-strip:hover {
      transform: translateX(4px);
      border-color: var(--brand-cyan);
      box-shadow: var(--shadow-hover);
    }
    .news-strip-thumb {
      width: 100px;
      height: 72px;
      border-radius: 10px;
      object-fit: cover;
      flex-shrink: 0;
    }
    .assurance-unit {
      background: rgba(30, 86, 160, 0.03);
      border-radius: 16px;
      padding: 1.8rem 1.4rem;
      border: 1px solid rgba(30, 86, 160, 0.07);
      text-align: center;
      transition: var(--spring-trans);
      height: 100%;
    }
    .assurance-unit:hover {
      background: #fff;
      box-shadow: var(--shadow-hover);
      border-color: var(--brand-cyan);
      transform: translateY(-4px);
    }
    .assurance-icon {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--brand-mint);
      color: var(--brand-blue);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 1rem;
    }
    .geo-nav-pills .nav-link {
      background: #fff;
      border: 1px solid var(--brand-border);
      color: #435569;
      font-weight: 600;
      border-radius: 999px;
      padding: 0.6rem 1.4rem;
      margin-right: 0.6rem;
      margin-bottom: 0.6rem;
      transition: var(--spring-trans);
    }
    .geo-nav-pills .nav-link.active {
      background: var(--brand-blue);
      color: #fff;
      border-color: var(--brand-blue);
      box-shadow: 0 4px 12px rgba(30, 86, 160, 0.25);
    }
    .geo-display-card {
      background: #fff;
      border-radius: 20px;
      padding: 2.2rem;
      border: 1px solid var(--brand-border);
      box-shadow: var(--shadow-base);
    }
    .feedback-bubble-card {
      background: #fff;
      border-radius: var(--card-radius);
      padding: 2.2rem 1.8rem;
      border: 1px solid var(--brand-border);
      box-shadow: var(--shadow-base);
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--spring-trans);
    }
    .feedback-bubble-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .rating-stars {
      color: #F59E0B;
      font-size: 0.95rem;
      margin-bottom: 1rem;
    }
    .fast-solution-tab {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-bottom: 2.5rem;
    }
    .solution-btn {
      padding: 0.55rem 1.4rem;
      border-radius: 999px;
      background: #fff;
      border: 1px solid var(--brand-border);
      color: #38485C;
      font-size: 0.92rem;
      font-weight: 600;
      cursor: pointer;
      transition: var(--spring-trans);
    }
    .solution-btn.active, .solution-btn:hover {
      background: var(--brand-blue);
      color: #fff;
      border-color: var(--brand-blue);
      box-shadow: 0 4px 12px rgba(30, 86, 160, 0.2);
    }
    .custom-accordion .accordion-item {
      border: 1px solid var(--brand-border);
      border-radius: 16px !important;
      margin-bottom: 1rem;
      overflow: hidden;
      box-shadow: var(--shadow-base);
    }
    .custom-accordion .accordion-button {
      font-weight: 700;
      color: #1D3557;
      background-color: #fff;
      padding: 1.25rem 1.6rem;
      box-shadow: none;
      font-size: 1.02rem;
    }
    .custom-accordion .accordion-button:not(.collapsed) {
      color: var(--brand-blue);
      background-color: #F4F8FD;
      border-bottom: 1px solid rgba(30, 86, 160, 0.08);
    }
    .custom-accordion .accordion-body {
      padding: 1.4rem 1.6rem;
      color: #4A5B6D;
      line-height: 1.8;
      background-color: #fff;
    }
    .conversion-card {
      background: linear-gradient(135deg, #EFF5FD 0%, #FFFFFF 100%);
      border-radius: 28px;
      padding: 3.5rem 2.8rem;
      border: 1px solid rgba(30, 86, 160, 0.16);
      box-shadow: 0 16px 40px -8px rgba(30, 86, 160, 0.12);
    }
    .form-control-pill, .form-select-pill {
      border-radius: 999px;
      padding: 0.75rem 1.4rem;
      border: 1.5px solid rgba(30, 86, 160, 0.18);
      font-size: 0.95rem;
      background-color: #fff;
      transition: var(--spring-trans);
    }
    .form-control-pill:focus, .form-select-pill:focus {
      border-color: var(--brand-blue);
      box-shadow: 0 0 0 4px rgba(30, 86, 160, 0.12);
    }
    .site-footer {
      background: #EEF2F7;
      color: #4D5E72;
      padding: 4.5rem 0 2rem 0;
      border-top: 1px solid rgba(30, 86, 160, 0.08);
      font-size: 0.92rem;
    }
    .footer-heading {
      font-size: 1.05rem;
      font-weight: 700;
      color: #122844;
      margin-bottom: 1.4rem;
    }
    .footer-list {
      list-style: none;
      padding-left: 0;
      margin-bottom: 0;
    }
    .footer-list li {
      margin-bottom: 0.75rem;
    }
    .footer-list a {
      transition: color 0.2s ease;
    }
    .footer-list a:hover {
      color: var(--brand-blue);
    }
    .footer-bottom-bar {
      margin-top: 3.5rem;
      padding-top: 1.8rem;
      border-top: 1px solid rgba(30, 86, 160, 0.08);
      font-size: 0.85rem;
      color: #718294;
    }
    @media (max-width: 768px) {
      .hero-angled-box {
        padding: 4.5rem 0 5.5rem 0;
        clip-path: polygon(0 0, 100% 0, 100% 96%, 0 100%);
      }
      .section-spacing, .section-spacing-alt {
        padding: 3.8rem 0;
      }
      .conversion-card {
        padding: 2.2rem 1.4rem;
      }
      .compare-col-modern {
        border-left: none;
        border-top: 1px solid var(--brand-border);
      }
    }

/* roulang page: category1 */
:root {
      --brand-blue: #1E56A0;
      --brand-cyan: #00A8CC;
      --brand-mint: #EBF4F6;
      --brand-bg: #F7F9FC;
      --brand-alt-bg: #F0F4F8;
      --brand-text: #162436;
      --brand-muted: #5C6B7A;
      --brand-border: rgba(30, 86, 160, 0.12);
      --card-radius: 18px;
      --shadow-base: 0 8px 24px -4px rgba(30, 86, 160, 0.08), 0 2px 6px -1px rgba(30, 86, 160, 0.04);
      --shadow-hover: 0 16px 32px -6px rgba(30, 86, 160, 0.14);
      --spring-trans: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    }
    body {
      background-color: var(--brand-bg);
      color: var(--brand-text);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    .main-header {
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(30, 86, 160, 0.08);
      z-index: 1050;
    }
    .nav-brand-text {
      font-size: 1.45rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--brand-blue);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }
    .brand-icon-symbol {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--brand-blue), var(--brand-cyan));
      border-radius: 9px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1rem;
      box-shadow: 0 4px 10px rgba(0, 168, 204, 0.3);
    }
    .navbar-nav .nav-link {
      font-size: 0.96rem;
      font-weight: 500;
      color: #38485C;
      padding: 0.5rem 1.1rem;
      position: relative;
      transition: var(--spring-trans);
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
      color: var(--brand-blue);
    }
    .navbar-nav .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 1.1rem;
      right: 1.1rem;
      height: 3px;
      background: var(--brand-blue);
      border-radius: 999px;
    }
    .btn-capsule-outline {
      border: 1.5px solid var(--brand-blue);
      color: var(--brand-blue);
      font-weight: 600;
      padding: 0.45rem 1.35rem;
      border-radius: 999px;
      transition: var(--spring-trans);
      font-size: 0.9rem;
    }
    .btn-capsule-outline:hover {
      background: var(--brand-blue);
      color: #fff;
      box-shadow: 0 6px 16px rgba(30, 86, 160, 0.2);
    }
    .btn-primary-pill {
      background: linear-gradient(135deg, var(--brand-blue), #2a6ec7);
      color: #ffffff !important;
      font-weight: 600;
      padding: 0.75rem 2rem;
      border-radius: 999px;
      border: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 8px 20px rgba(30, 86, 160, 0.25);
      transition: var(--spring-trans);
    }
    .btn-primary-pill:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 26px rgba(30, 86, 160, 0.32);
    }

    /* Category Specific Components */
    .category-header-wrap {
      background: #ffffff;
      border-bottom: 1px solid var(--brand-border);
      padding: 2.5rem 0 2rem 0;
    }
    .breadcrumb-item a {
      color: var(--brand-muted);
      font-size: 0.88rem;
    }
    .breadcrumb-item.active {
      color: var(--brand-blue);
      font-weight: 600;
      font-size: 0.88rem;
    }
    .breadcrumb-item + .breadcrumb-item::before {
      color: #9aa9bc;
    }
    .category-main-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: #122844;
      margin-bottom: 0.6rem;
      letter-spacing: -0.5px;
    }
    .category-main-desc {
      color: var(--brand-muted);
      font-size: 0.96rem;
      max-width: 860px;
      margin: 0;
      line-height: 1.65;
    }

    /* Filter & Sort Bar */
    .filter-sort-bar {
      background: #ffffff;
      border-radius: var(--card-radius);
      padding: 1.25rem 1.6rem;
      border: 1px solid var(--brand-border);
      box-shadow: var(--shadow-base);
      margin-top: 2rem;
      margin-bottom: 2.5rem;
    }
    .filter-group-label {
      font-size: 0.88rem;
      font-weight: 700;
      color: #1e334f;
      min-width: 75px;
    }
    .filter-pill {
      display: inline-block;
      padding: 0.35rem 0.95rem;
      font-size: 0.84rem;
      border-radius: 999px;
      color: var(--brand-muted);
      background: var(--brand-bg);
      border: 1px solid rgba(30, 86, 160, 0.08);
      cursor: pointer;
      transition: var(--spring-trans);
    }
    .filter-pill:hover {
      background: var(--brand-mint);
      color: var(--brand-blue);
    }
    .filter-pill.active {
      background: var(--brand-blue);
      color: #ffffff;
      border-color: var(--brand-blue);
      font-weight: 600;
      box-shadow: 0 4px 10px rgba(30, 86, 160, 0.25);
    }
    .form-select-sm-custom {
      border-radius: 999px;
      font-size: 0.85rem;
      border: 1px solid var(--brand-border);
      padding: 0.4rem 2rem 0.4rem 1rem;
      color: var(--brand-text);
      font-weight: 500;
      background-color: #fff;
    }

    /* Main Grid Cards */
    .category-card {
      background: #ffffff;
      border-radius: var(--card-radius);
      overflow: hidden;
      border: 1px solid var(--brand-border);
      box-shadow: var(--shadow-base);
      transition: var(--spring-trans);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .category-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 86, 160, 0.3);
    }
    .category-card-thumb-wrap {
      position: relative;
      width: 100%;
      height: 200px;
      overflow: hidden;
      background-color: #e9eef5;
    }
    .category-card-thumb-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .category-card:hover .category-card-thumb-wrap img {
      transform: scale(1.05);
    }
    .category-card-badge {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(14, 43, 82, 0.82);
      backdrop-filter: blur(6px);
      color: #ffffff;
      font-size: 0.76rem;
      font-weight: 600;
      padding: 0.25rem 0.75rem;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .category-card-body {
      padding: 1.4rem 1.4rem 1.2rem 1.4rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .category-card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #122844;
      line-height: 1.45;
      margin-bottom: 0.65rem;
      transition: color 0.2s ease;
    }
    .category-card:hover .category-card-title {
      color: var(--brand-blue);
    }
    .category-param-list {
      list-style: none;
      padding: 0;
      margin: 0 0 1.2rem 0;
      font-size: 0.84rem;
      color: var(--brand-muted);
      border-top: 1px dashed var(--brand-border);
      padding-top: 0.8rem;
    }
    .category-param-list li {
      display: flex;
      justify-content: space-between;
      margin-bottom: 0.35rem;
    }
    .category-param-list li span:last-child {
      color: var(--brand-text);
      font-weight: 600;
    }
    .category-card-footer {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 0.8rem;
      border-top: 1px solid rgba(30, 86, 160, 0.06);
      font-size: 0.82rem;
      color: #8b99aa;
    }
    .category-card-link {
      font-size: 0.84rem;
      font-weight: 700;
      color: var(--brand-blue);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .category-card-link:hover {
      color: var(--brand-cyan);
    }

    /* Custom Pagination */
    .pagination-custom .page-link {
      width: 42px;
      height: 42px;
      border-radius: 50% !important;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin: 0 4px;
      border: 1px solid var(--brand-border);
      color: #405167;
      font-weight: 600;
      font-size: 0.9rem;
      background: #ffffff;
      transition: var(--spring-trans);
    }
    .pagination-custom .page-link:hover {
      background: var(--brand-mint);
      color: var(--brand-blue);
      border-color: rgba(30, 86, 160, 0.2);
    }
    .pagination-custom .page-item.active .page-link {
      background: var(--brand-blue);
      color: #ffffff;
      border-color: var(--brand-blue);
      box-shadow: 0 4px 12px rgba(30, 86, 160, 0.3);
    }

    /* Topic Grid Section */
    .topic-card-box {
      background: #ffffff;
      border-radius: 14px;
      padding: 1.25rem 1.4rem;
      border: 1px solid var(--brand-border);
      box-shadow: var(--shadow-base);
      transition: var(--spring-trans);
      display: block;
      height: 100%;
    }
    .topic-card-box:hover {
      background: var(--brand-mint);
      border-color: rgba(30, 86, 160, 0.25);
      transform: translateY(-3px);
    }
    .topic-card-title {
      font-size: 0.98rem;
      font-weight: 700;
      color: #122844;
      margin-bottom: 0.35rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .topic-card-desc {
      font-size: 0.82rem;
      color: var(--brand-muted);
      margin: 0;
      line-height: 1.5;
    }

    /* Comparison Table Section */
    .tech-table-container {
      background: #ffffff;
      border-radius: var(--card-radius);
      border: 1px solid var(--brand-border);
      box-shadow: var(--shadow-base);
      overflow: hidden;
    }
    .table-custom-spec {
      margin-bottom: 0;
      font-size: 0.88rem;
    }
    .table-custom-spec thead th {
      background: var(--brand-alt-bg);
      color: #162436;
      font-weight: 700;
      border-bottom: 1px solid var(--brand-border);
      padding: 1rem 1.25rem;
    }
    .table-custom-spec tbody td {
      padding: 1.1rem 1.25rem;
      vertical-align: middle;
      border-bottom: 1px solid rgba(30, 86, 160, 0.06);
      color: #38485C;
    }
    .table-custom-spec tbody tr:last-child td {
      border-bottom: none;
    }

    /* Category CTA Banner */
    .cta-compact-banner {
      background: linear-gradient(135deg, #10386c 0%, var(--brand-blue) 100%);
      border-radius: var(--card-radius);
      padding: 2.5rem 2.8rem;
      color: #ffffff;
      box-shadow: 0 16px 36px rgba(16, 56, 108, 0.22);
    }
    .cta-input-custom {
      border-radius: 999px;
      padding: 0.75rem 1.4rem;
      border: none;
      font-size: 0.9rem;
    }
    .cta-input-custom:focus {
      outline: none;
      box-shadow: 0 0 0 3px rgba(0, 168, 204, 0.4);
    }

    /* Global Section Utilities */
    .section-spacing {
      padding: 4.5rem 0;
    }
    .section-spacing-alt {
      padding: 4.5rem 0;
      background-color: var(--brand-alt-bg);
    }
    .section-pill-tag {
      display: inline-block;
      padding: 0.3rem 0.95rem;
      background: var(--brand-mint);
      color: var(--brand-blue);
      font-size: 0.82rem;
      font-weight: 700;
      border-radius: 999px;
      letter-spacing: 0.5px;
      margin-bottom: 0.8rem;
    }
    .section-heading {
      font-size: 1.95rem;
      font-weight: 700;
      color: #122844;
      line-height: 1.35;
      margin-bottom: 0.75rem;
    }
    .section-desc {
      color: var(--brand-muted);
      font-size: 0.95rem;
      max-width: 760px;
      line-height: 1.65;
    }

    /* Footer System */
    .footer-custom {
      background: #EEF2F7;
      padding: 4.5rem 0 2rem 0;
      color: #4A5B70;
      border-top: 1px solid rgba(30, 86, 160, 0.08);
    }
    .footer-brand-title {
      font-size: 1.35rem;
      font-weight: 800;
      color: #122844;
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 1.2rem;
    }
    .footer-column-title {
      font-size: 1rem;
      font-weight: 700;
      color: #1a3250;
      margin-bottom: 1.3rem;
    }
    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links-list li {
      margin-bottom: 0.7rem;
    }
    .footer-links-list a {
      color: #58697E;
      font-size: 0.88rem;
      transition: color 0.2s ease;
    }
    .footer-links-list a:hover {
      color: var(--brand-blue);
    }
    .footer-bottom-bar {
      margin-top: 3.5rem;
      padding-top: 1.8rem;
      border-top: 1px solid rgba(30, 86, 160, 0.08);
      font-size: 0.84rem;
      color: #728296;
    }
    .extra-small {
      font-size: 0.78rem;
    }

    @media (max-width: 991.98px) {
      .category-main-title {
        font-size: 1.75rem;
      }
      .cta-compact-banner {
        padding: 2rem 1.5rem;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}