/* roulang page: index */
:root {
      --hj-primary: #1A56DB;
      --hj-primary-hover: #1E429F;
      --hj-primary-light: #EBF5FF;
      --hj-accent-green: #0E9F6E;
      --hj-accent-purple: #7E3AF2;
      --hj-bg-main: #F9FAFB;
      --hj-bg-surface: #FFFFFF;
      --hj-bg-dark: #111927;
      --hj-text-title: #111928;
      --hj-text-body: #4B5563;
      --hj-text-muted: #9CA3AF;
      --hj-border-color: #E5E7EB;
      --hj-shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --hj-shadow-hover: 0 20px 25px -5px rgba(26, 86, 219, 0.1), 0 10px 10px -5px rgba(26, 86, 219, 0.04);
      --hj-radius-main: 16px;
      --hj-radius-pill: 24px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--hj-bg-main);
      color: var(--hj-text-body);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

    /* 顶部辅助条 */
    .utility-bar {
      background-color: #F3F4F6;
      font-size: 0.8125rem;
      border-bottom: 1px solid var(--hj-border-color);
      color: var(--hj-text-muted);
    }
    .utility-bar a {
      color: var(--hj-text-body);
      text-decoration: none;
    }
    .utility-bar a:hover {
      color: var(--hj-primary);
    }
    .status-indicator {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: var(--hj-accent-green);
      border-radius: 50%;
      margin-right: 6px;
      box-shadow: 0 0 0 2px rgba(14, 159, 110, 0.2);
    }

    /* 主导航栏 */
    .main-nav {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--hj-border-color);
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
      transition: all 0.3s ease;
    }
    .navbar-brand {
      font-weight: 700;
      font-size: 1.25rem;
      color: var(--hj-text-title) !important;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .navbar-brand .logo-icon {
      background: var(--hj-primary);
      color: #fff;
      width: 36px;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      font-size: 1.1rem;
    }
    .nav-search-box {
      background: #F3F4F6;
      border-radius: var(--hj-radius-pill);
      padding: 6px 16px;
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--hj-text-muted);
      font-size: 0.875rem;
      border: 1px solid transparent;
      transition: all 0.2s;
    }
    .nav-search-box:focus-within {
      background: #fff;
      border-color: var(--hj-primary);
      box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
    }
    .nav-search-box input {
      border: none;
      outline: none;
      background: transparent;
      font-size: 0.875rem;
      color: var(--hj-text-title);
      width: 140px;
    }
    .nav-search-box kbd {
      background: #fff;
      border: 1px solid var(--hj-border-color);
      border-radius: 4px;
      padding: 1px 4px;
      font-size: 0.75rem;
      color: var(--hj-text-muted);
    }
    .nav-link {
      font-weight: 500;
      color: var(--hj-text-title) !important;
      padding: 0.5rem 0.9rem !important;
      font-size: 0.9375rem;
      transition: color 0.2s;
    }
    .nav-link:hover {
      color: var(--hj-primary) !important;
    }

    /* 基础通用样式与重写 */
    .btn-primary {
      background-color: var(--hj-primary);
      border-color: var(--hj-primary);
      font-weight: 600;
      padding: 0.625rem 1.5rem;
      border-radius: var(--hj-radius-pill);
      box-shadow: 0 4px 12px rgba(26, 86, 219, 0.2);
      transition: all 0.25s ease;
    }
    .btn-primary:hover, .btn-primary:focus {
      background-color: var(--hj-primary-hover);
      border-color: var(--hj-primary-hover);
      box-shadow: 0 6px 16px rgba(26, 86, 219, 0.3);
      transform: translateY(-1px);
    }
    .btn-outline-custom {
      background-color: #FFFFFF;
      border: 1px solid var(--hj-border-color);
      color: #374151;
      font-weight: 600;
      padding: 0.625rem 1.5rem;
      border-radius: var(--hj-radius-pill);
      transition: all 0.2s;
    }
    .btn-outline-custom:hover {
      background-color: #F9FAFB;
      border-color: #D1D5DB;
      color: var(--hj-primary);
    }
    .btn-secondary-brand {
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.25);
      color: #fff;
      border-radius: var(--hj-radius-pill);
      font-weight: 600;
      padding: 0.625rem 1.5rem;
      transition: all 0.2s;
      text-decoration: none;
    }
    .btn-secondary-brand:hover {
      background: rgba(255, 255, 255, 0.25);
      color: #fff;
    }

    .section-spacing {
      padding-top: 5rem;
      padding-bottom: 5rem;
    }
    .section-spacing-alt {
      background-color: var(--hj-bg-surface);
      border-top: 1px solid var(--hj-border-color);
      border-bottom: 1px solid var(--hj-border-color);
    }
    .section-header {
      margin-bottom: 3.5rem;
    }
    .section-title {
      color: var(--hj-text-title);
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 0.85rem;
    }
    .section-subtitle {
      color: var(--hj-text-body);
      font-size: 1.0625rem;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
      line-height: 1.7;
    }

    .badge-pill-soft {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: var(--hj-radius-pill);
      font-size: 0.8125rem;
      font-weight: 600;
      margin-bottom: 1rem;
    }
    .badge-blue {
      background: var(--hj-primary-light);
      color: var(--hj-primary);
    }
    .badge-purple {
      background: #F3E8FF;
      color: var(--hj-accent-purple);
    }
    .badge-green {
      background: #DEF7EC;
      color: var(--hj-accent-green);
    }

    .hj-card {
      background: var(--hj-bg-surface);
      border: 1px solid var(--hj-border-color);
      border-radius: var(--hj-radius-main);
      box-shadow: var(--hj-shadow-card);
      transition: all 0.25s ease;
      height: 100%;
      overflow: hidden;
    }
    .hj-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--hj-shadow-hover);
      border-color: #C3D9FF;
    }

    /* Bento 首屏 */
    .hero-bento {
      position: relative;
      background: url('/assets/images/ce921ab49a37eb54.jpg') center center / cover no-repeat;
      padding-top: 4.5rem;
      padding-bottom: 4.5rem;
    }
    .hero-bento::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(249, 250, 251, 0.94) 0%, rgba(243, 244, 246, 0.96) 100%);
    }
    .hero-bento .container {
      position: relative;
      z-index: 2;
    }
    .hero-main-card {
      background: #FFFFFF;
      border: 1px solid var(--hj-border-color);
      border-radius: var(--hj-radius-main);
      padding: 2.75rem;
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.05);
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .hero-sub-card {
      background: #FFFFFF;
      border: 1px solid var(--hj-border-color);
      border-radius: var(--hj-radius-main);
      padding: 1.75rem;
      box-shadow: var(--hj-shadow-card);
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .hero-metrics-strip {
      background: #FFFFFF;
      border: 1px solid var(--hj-border-color);
      border-radius: var(--hj-radius-main);
      padding: 1.25rem 2rem;
      margin-top: 1.5rem;
      box-shadow: var(--hj-shadow-card);
    }

    /* 手风琴重构 */
    .accordion-item {
      background-color: var(--hj-bg-surface);
      border: 1px solid var(--hj-border-color);
      border-radius: var(--hj-radius-main) !important;
      margin-bottom: 1rem;
      overflow: hidden;
      box-shadow: 0 2px 4px rgba(0,0,0,0.02);
      transition: all 0.2s;
    }
    .accordion-button {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--hj-text-title);
      padding: 1.25rem 1.5rem;
      background-color: var(--hj-bg-surface);
      box-shadow: none !important;
    }
    .accordion-button:not(.collapsed) {
      color: var(--hj-primary);
      background-color: var(--hj-primary-light);
      border-left: 4px solid var(--hj-primary);
    }
    .accordion-body {
      padding: 1.25rem 1.5rem;
      color: var(--hj-text-body);
      line-height: 1.75;
      font-size: 0.95rem;
    }

    /* 深色技术区块 */
    .dark-tech-section {
      background-color: var(--hj-bg-dark);
      color: #E5E7EB;
      position: relative;
    }
    .dark-tech-card {
      background: #1F2A37;
      border: 1px solid #374151;
      border-radius: var(--hj-radius-main);
      padding: 2rem;
      transition: all 0.25s;
    }
    .dark-tech-card:hover {
      border-color: #3B82F6;
      box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
    }

    /* 比较表格定制 */
    .table-compare {
      border-collapse: separate;
      border-spacing: 0;
      border-radius: var(--hj-radius-main);
      overflow: hidden;
      background: #FFFFFF;
      border: 1px solid var(--hj-border-color);
    }
    .table-compare th, .table-compare td {
      padding: 1.15rem 1.25rem;
      vertical-align: middle;
      border-bottom: 1px solid var(--hj-border-color);
    }
    .table-compare thead th {
      background-color: #F9FAFB;
      font-weight: 700;
      color: var(--hj-text-title);
    }
    .col-highlight {
      background-color: rgba(26, 86, 219, 0.03);
      border-left: 2px solid var(--hj-primary) !important;
      border-right: 2px solid var(--hj-primary) !important;
    }

    /* 页脚 */
    .site-footer {
      background-color: #FFFFFF;
      border-top: 1px solid var(--hj-border-color);
      padding-top: 4.5rem;
      padding-bottom: 2rem;
      font-size: 0.9375rem;
    }
    .site-footer h6 {
      font-weight: 700;
      color: var(--hj-text-title);
      margin-bottom: 1.25rem;
      font-size: 1rem;
    }
    .site-footer ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .site-footer ul li {
      margin-bottom: 0.65rem;
    }
    .site-footer ul li a {
      color: var(--hj-text-body);
      text-decoration: none;
      transition: color 0.2s;
    }
    .site-footer ul li a:hover {
      color: var(--hj-primary);
    }
    .footer-bottom {
      margin-top: 3.5rem;
      padding-top: 1.5rem;
      border-top: 1px solid var(--hj-border-color);
      color: var(--hj-text-muted);
      font-size: 0.85rem;
    }

    /* 响应式断点控制 */
    @media (max-width: 991.98px) {
      .section-spacing {
        padding-top: 3.5rem;
        padding-bottom: 3.5rem;
      }
      .hero-main-card {
        padding: 1.75rem;
      }
      .nav-search-box {
        display: none;
      }
    }
    @media (max-width: 576px) {
      .section-spacing {
        padding-top: 2.75rem;
        padding-bottom: 2.75rem;
      }
      .section-title {
        font-size: 1.5rem !important;
      }
    }