/* roulang page: index */
:root {
      --g-primary: #0b3b60;
      --g-primary-hover: #082d49;
      --g-secondary: #008779;
      --g-accent: #e67e22;
      --g-dark: #1e293b;
      --g-light: #f8fafc;
      --g-muted: #64748b;
      --g-border: #e2e8f0;
      --g-card-bg: #ffffff;
      --g-radius: 8px;
      --g-shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --g-shadow-md: 0 6px 18px rgba(11,59,96,0.08);
      --g-shadow-lg: 0 12px 30px rgba(11,59,96,0.12);
      --g-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

    body {
      font-family: var(--g-font-sans);
      color: var(--g-dark);
      background-color: #fdfdfd;
      line-height: 1.68;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }
    a:hover {
      color: var(--g-secondary);
    }

    /* 顶栏公告区 */
    .top-timeline-bar {
      background-color: #051c2e;
      color: #94a3b8;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      padding: 6px 0;
    }
    .phase-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 2px 10px;
      border-radius: 20px;
      font-size: 0.75rem;
      font-weight: 600;
    }
    .phase-chip.live {
      background: rgba(16, 185, 129, 0.2);
      color: #10b981;
      border: 1px solid rgba(16, 185, 129, 0.4);
    }
    .phase-chip.upcoming {
      background: rgba(230, 126, 34, 0.2);
      color: #f39c12;
      border: 1px solid rgba(230, 126, 34, 0.4);
    }

    /* 导航栏 */
    .site-header {
      background: #ffffff;
      box-shadow: var(--g-shadow-sm);
      position: sticky;
      top: 0;
      z-index: 1030;
      border-bottom: 1px solid var(--g-border);
    }
    .navbar-brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--g-primary);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .navbar-brand-text i {
      color: var(--g-secondary);
      font-size: 1.35rem;
    }
    .nav-link {
      font-weight: 600;
      color: var(--g-dark) !important;
      padding: 0.5rem 1rem !important;
      font-size: 0.95rem;
      border-radius: 4px;
      transition: all 0.2s ease;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--g-primary) !important;
      background-color: #f1f5f9;
    }
    .nav-stage-tag {
      font-size: 0.7rem;
      padding: 1px 6px;
      border-radius: 4px;
      margin-left: 4px;
      vertical-align: middle;
    }

    /* 矮横幅全宽浅色 Hero */
    .hero-strip {
      background: linear-gradient(135deg, #f0f7fb 0%, #e6eff5 100%);
      border-bottom: 1px solid #dbeafe;
      padding: 3rem 0;
      position: relative;
    }
    .hero-h1 {
      font-size: 2.15rem;
      font-weight: 800;
      line-height: 1.3;
      color: var(--g-primary);
      margin-bottom: 1rem;
    }
    .hero-p {
      font-size: 1.05rem;
      color: #475569;
      line-height: 1.75;
      margin-bottom: 1.5rem;
    }
    .hero-metrics-pill {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 30px;
      padding: 6px 16px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--g-primary);
      margin-right: 10px;
      margin-bottom: 8px;
    }

    /* 通用板块与排版 */
    .section-block {
      padding: 4.5rem 0;
      border-bottom: 1px solid #f1f5f9;
    }
    .section-block.bg-alt {
      background-color: #f8fafc;
    }
    .section-block.bg-dark-industrial {
      background-color: #0b1e2d;
      color: #ffffff;
    }
    .section-header {
      margin-bottom: 2.8rem;
    }
    .section-kicker {
      text-transform: uppercase;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--g-secondary);
      letter-spacing: 1px;
      margin-bottom: 0.4rem;
      display: block;
    }
    .section-title {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--g-primary);
      letter-spacing: -0.5px;
      margin-bottom: 0.75rem;
    }
    .bg-dark-industrial .section-title {
      color: #ffffff;
    }
    .section-lead {
      font-size: 0.98rem;
      color: var(--g-muted);
      max-width: 820px;
      margin-bottom: 0;
    }
    .bg-dark-industrial .section-lead {
      color: #94a3b8;
    }

    /* 工业卡片系统 */
    .industrial-card {
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      padding: 1.8rem;
      height: 100%;
      box-shadow: var(--g-shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .industrial-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--g-shadow-md);
      border-color: #93c5fd;
    }
    .card-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: 8px;
      background: #e0f2fe;
      color: var(--g-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 1.2rem;
    }
    .industrial-card h3, .industrial-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--g-dark);
    }
    .industrial-card p {
      font-size: 0.925rem;
      color: #475569;
      line-height: 1.65;
      margin-bottom: 1rem;
      flex-grow: 1;
    }

    /* 痛点对比横幅与卡片 */
    .pain-card {
      border-left: 4px solid #ef4444;
      background: #fff5f5;
      padding: 1.5rem;
      border-radius: 4px;
      height: 100%;
    }
    .pain-card h4 {
      color: #b91c1c;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .pain-card p {
      font-size: 0.9rem;
      color: #7f1d1d;
      margin: 0;
    }

    .solution-card {
      border-left: 4px solid var(--g-secondary);
      background: #f0fdfa;
      padding: 1.5rem;
      border-radius: 4px;
      height: 100%;
    }
    .solution-card h4 {
      color: #0f766e;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .solution-card p {
      font-size: 0.9rem;
      color: #134e4a;
      margin: 0;
    }

    /* 按钮 */
    .btn-brand-primary {
      background-color: var(--g-primary);
      color: #ffffff;
      font-weight: 600;
      padding: 0.75rem 1.6rem;
      border-radius: 6px;
      border: 1px solid var(--g-primary);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-primary:hover {
      background-color: var(--g-primary-hover);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(11,59,96,0.25);
    }

    .btn-brand-outline {
      background-color: transparent;
      color: var(--g-primary);
      font-weight: 600;
      padding: 0.75rem 1.6rem;
      border-radius: 6px;
      border: 1px solid var(--g-primary);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-outline:hover {
      background-color: #f1f5f9;
      color: var(--g-primary);
    }

    /* 数据指标条 */
    .metric-number {
      font-size: 2.6rem;
      font-weight: 800;
      color: var(--g-secondary);
      line-height: 1;
      margin-bottom: 0.35rem;
      font-family: var(--g-font-sans);
    }
    .metric-label {
      font-size: 0.875rem;
      color: var(--g-muted);
      font-weight: 600;
    }

    /* 图文卡片 */
    .media-card {
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      overflow: hidden;
      background: #ffffff;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .media-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .media-card:hover img {
      transform: scale(1.03);
    }
    .media-body {
      padding: 1.4rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .media-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--g-secondary);
      margin-bottom: 0.5rem;
      display: inline-block;
    }

    /* 流程步骤 */
    .step-badge {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: var(--g-primary);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
      margin-bottom: 1rem;
    }

    /* 表单获客卡片 */
    .lead-box {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 12px;
      padding: 2.5rem;
      box-shadow: var(--g-shadow-md);
    }
    .form-control, .form-select {
      border-radius: 6px;
      border: 1px solid #cbd5e1;
      padding: 0.75rem 1rem;
      font-size: 0.95rem;
    }
    .form-control:focus, .form-select:focus {
      border-color: var(--g-primary);
      box-shadow: 0 0 0 3px rgba(11,59,96,0.15);
    }

    /* 页脚 */
    .site-footer {
      background-color: #071724;
      color: #cbd5e1;
      padding-top: 4rem;
      padding-bottom: 2rem;
      font-size: 0.9rem;
      border-top: 3px solid var(--g-secondary);
    }
    .site-footer h5 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 0.65rem;
    }
    .footer-links a {
      color: #94a3b8;
    }
    .footer-links a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.08);
      margin-top: 3rem;
      padding-top: 1.5rem;
      font-size: 0.8125rem;
      color: #64748b;
    }

    @media (max-width: 991px) {
      .hero-h1 { font-size: 1.8rem; }
      .section-block { padding: 3rem 0; }
    }

/* roulang page: category2 */
:root {
            --g-primary: #0b3b60;
            --g-primary-hover: #082d49;
            --g-secondary: #008779;
            --g-accent: #e67e22;
            --g-dark: #1e293b;
            --g-light: #f8fafc;
            --g-muted: #64748b;
            --g-border: #e2e8f0;
            --g-card-bg: #ffffff;
            --g-radius: 8px;
            --g-shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
            --g-shadow-md: 0 6px 18px rgba(11,59,96,0.08);
            --g-shadow-lg: 0 12px 30px rgba(11,59,96,0.12);
            --g-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        body {
            font-family: var(--g-font-sans);
            color: var(--g-dark);
            background-color: #fdfdfd;
            line-height: 1.68;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }
        a:hover {
            color: var(--g-secondary);
        }
        .site-header {
            background: #ffffff;
            box-shadow: var(--g-shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1030;
            border-bottom: 1px solid var(--g-border);
        }
        .navbar-brand-text {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--g-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand-text i {
            color: var(--g-secondary);
            font-size: 1.35rem;
        }
        .nav-link {
            font-weight: 600;
            color: var(--g-dark) !important;
            padding: 0.5rem 1rem !important;
            font-size: 0.95rem;
            border-radius: 4px;
            transition: all 0.2s ease;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--g-primary) !important;
            background-color: #f1f5f9;
        }
        .nav-stage-tag {
            font-size: 0.7rem;
            padding: 1px 6px;
            border-radius: 4px;
            margin-left: 4px;
            vertical-align: middle;
        }
        .hero-flagship {
            position: relative;
            background-color: #0b1e2d;
            color: #ffffff;
            overflow: hidden;
            padding: 4.5rem 0 3.5rem;
            background-image: linear-gradient(rgba(11, 30, 45, 0.88), rgba(11, 30, 45, 0.92)), url('/assets/images/5d4c31d8952a1788.webp');
            background-size: cover;
            background-position: center;
        }
        .hero-flagship-overlay {
            position: relative;
            z-index: 2;
        }
        .hero-series-strip {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            padding: 8px 18px;
            display: inline-flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }
        .hero-series-strip span {
            font-size: 0.85rem;
            color: #94a3b8;
            font-weight: 500;
        }
        .hero-series-strip .active-series {
            color: #ffffff;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-series-strip .active-series::before {
            content: "";
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: var(--g-secondary);
            border-radius: 50%;
        }
        .hero-flagship h1 {
            font-size: 2.35rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 1.2rem;
        }
        .hero-flagship p.lead {
            font-size: 1.05rem;
            color: #cbd5e1;
            max-width: 860px;
            line-height: 1.75;
            margin-bottom: 2rem;
        }
        .btn-brand-primary {
            background-color: var(--g-secondary);
            color: #ffffff;
            font-weight: 600;
            padding: 0.75rem 1.6rem;
            border-radius: 6px;
            border: 1px solid var(--g-secondary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand-primary:hover {
            background-color: #007064;
            color: #ffffff;
        }
        .btn-brand-outline-light {
            background-color: transparent;
            color: #ffffff;
            font-weight: 600;
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            border-color: #ffffff;
        }
        .section-block {
            padding: 4.8rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .section-block.bg-alt {
            background-color: #f8fafc;
        }
        .section-block.bg-dark-industrial {
            background-color: #0b1e2d;
            color: #ffffff;
        }
        .section-header {
            margin-bottom: 2.8rem;
        }
        .section-kicker {
            text-transform: uppercase;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--g-secondary);
            letter-spacing: 1.2px;
            margin-bottom: 0.4rem;
            display: block;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--g-primary);
            letter-spacing: -0.5px;
            margin-bottom: 0.75rem;
        }
        .bg-dark-industrial .section-title {
            color: #ffffff;
        }
        .section-lead {
            font-size: 0.98rem;
            color: var(--g-muted);
            max-width: 840px;
            margin-bottom: 0;
        }
        .bg-dark-industrial .section-lead {
            color: #94a3b8;
        }
        .industrial-card {
            background: #ffffff;
            border: 1px solid var(--g-border);
            border-radius: var(--g-radius);
            padding: 1.8rem;
            height: 100%;
            box-shadow: var(--g-shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .industrial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--g-shadow-md);
            border-color: #93c5fd;
        }
        .card-icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            background: #e0f2fe;
            color: var(--g-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            margin-bottom: 1.2rem;
        }
        .pain-box {
            border-left: 4px solid #ef4444;
            background: #fef2f2;
            padding: 1.4rem;
            border-radius: 4px;
            height: 100%;
        }
        .pain-box h4 {
            color: #b91c1c;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .pain-box p {
            font-size: 0.9rem;
            color: #7f1d1d;
            margin: 0;
            line-height: 1.6;
        }
        .solution-box {
            border-left: 4px solid var(--g-secondary);
            background: #f0fdf4;
            padding: 1.4rem;
            border-radius: 4px;
            height: 100%;
        }
        .solution-box h4 {
            color: #166534;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .solution-box p {
            font-size: 0.9rem;
            color: #14532d;
            margin: 0;
            line-height: 1.6;
        }
        .step-num-badge {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--g-secondary);
            margin-bottom: 0.5rem;
            display: block;
        }
        .step-panel {
            position: relative;
            padding: 1.6rem;
            background: #ffffff;
            border: 1px solid var(--g-border);
            border-radius: var(--g-radius);
            box-shadow: var(--g-shadow-sm);
            height: 100%;
        }
        .data-kpi-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--g-radius);
            padding: 1.8rem;
            text-align: center;
        }
        .data-kpi-card .kpi-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: #38bdf8;
            margin-bottom: 0.25rem;
        }
        .data-kpi-card .kpi-label {
            font-size: 0.9rem;
            color: #94a3b8;
            margin-bottom: 0;
        }
        .testimonial-card {
            background: #ffffff;
            border: 1px solid var(--g-border);
            border-radius: var(--g-radius);
            padding: 1.8rem;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .testimonial-text {
            font-size: 0.925rem;
            color: #475569;
            font-style: italic;
            margin-bottom: 1.2rem;
            line-height: 1.7;
        }
        .audience-card {
            background: #ffffff;
            border: 1px solid var(--g-border);
            border-radius: var(--g-radius);
            padding: 1.5rem;
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .audience-icon {
            font-size: 1.5rem;
            color: var(--g-primary);
            flex-shrink: 0;
            margin-top: 4px;
        }
        .news-item {
            background: #ffffff;
            border: 1px solid var(--g-border);
            border-radius: var(--g-radius);
            padding: 1.2rem;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            height: 100%;
        }
        .news-tag {
            font-size: 0.75rem;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 4px;
            background: #e2e8f0;
            color: #475569;
            align-self: flex-start;
            margin-bottom: 0.6rem;
        }
        .site-footer {
            background: #061523;
            color: #ffffff;
            padding: 4.5rem 0 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer h5 {
            color: #ffffff;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1.4rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .footer-links a:hover {
            color: #38bdf8;
        }
        .footer-bottom {
            margin-top: 3.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

/* roulang page: category1 */
:root {
      --g-primary: #0b3b60;
      --g-primary-hover: #082d49;
      --g-secondary: #008779;
      --g-accent: #e67e22;
      --g-dark: #1e293b;
      --g-light: #f8fafc;
      --g-muted: #64748b;
      --g-border: #e2e8f0;
      --g-card-bg: #ffffff;
      --g-radius: 8px;
      --g-shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --g-shadow-md: 0 6px 18px rgba(11,59,96,0.08);
      --g-shadow-lg: 0 12px 30px rgba(11,59,96,0.12);
      --g-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      font-family: var(--g-font-sans);
      color: var(--g-dark);
      background-color: #fdfdfd;
      line-height: 1.68;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }
    a:hover {
      color: var(--g-secondary);
    }
    .phase-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 2px 10px;
      border-radius: 20px;
      font-size: 0.75rem;
      font-weight: 600;
    }
    .phase-chip.live {
      background: rgba(16, 185, 129, 0.2);
      color: #10b981;
      border: 1px solid rgba(16, 185, 129, 0.4);
    }
    .phase-chip.upcoming {
      background: rgba(230, 126, 34, 0.2);
      color: #f39c12;
      border: 1px solid rgba(230, 126, 34, 0.4);
    }
    /* 导航栏 */
    .site-header {
      background: #ffffff;
      box-shadow: var(--g-shadow-sm);
      position: sticky;
      top: 0;
      z-index: 1030;
      border-bottom: 1px solid var(--g-border);
    }
    .navbar-brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--g-primary);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .navbar-brand-text i {
      color: var(--g-secondary);
      font-size: 1.35rem;
    }
    .nav-link {
      font-weight: 600;
      color: var(--g-dark) !important;
      padding: 0.5rem 1rem !important;
      font-size: 0.95rem;
      border-radius: 4px;
      transition: all 0.2s ease;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--g-primary) !important;
      background-color: #f1f5f9;
    }
    .nav-stage-tag {
      font-size: 0.7rem;
      padding: 1px 6px;
      border-radius: 4px;
      margin-left: 4px;
      vertical-align: middle;
    }

    /* 内页专用大图叙事 Hero */
    .category-hero-wrap {
      position: relative;
      background: #061828;
      color: #ffffff;
      padding: 4.5rem 0 4rem;
      overflow: hidden;
      border-bottom: 3px solid var(--g-secondary);
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.22;
      filter: saturate(120%) contrast(110%);
    }
    .hero-content-relative {
      position: relative;
      z-index: 2;
    }
    .hero-lead-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      background: rgba(0, 135, 121, 0.25);
      border: 1px solid rgba(0, 135, 121, 0.6);
      border-radius: 4px;
      color: #5eead4;
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
      letter-spacing: 0.5px;
    }
    .hero-category-h1 {
      font-size: 2.35rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 1.2rem;
      color: #ffffff;
      letter-spacing: -0.5px;
    }
    .hero-category-desc {
      font-size: 1.05rem;
      color: #cbd5e1;
      line-height: 1.8;
      max-width: 780px;
      margin-bottom: 1.8rem;
    }
    .hero-action-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    /* 板块结构 */
    .section-block {
      padding: 4.5rem 0;
      border-bottom: 1px solid #f1f5f9;
    }
    .section-block.bg-alt {
      background-color: #f8fafc;
    }
    .section-block.bg-dark-industrial {
      background-color: #0b1e2d;
      color: #ffffff;
    }
    .section-header {
      margin-bottom: 2.8rem;
    }
    .section-kicker {
      text-transform: uppercase;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--g-secondary);
      letter-spacing: 1px;
      margin-bottom: 0.4rem;
      display: block;
    }
    .section-title {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--g-primary);
      letter-spacing: -0.5px;
      margin-bottom: 0.75rem;
    }
    .bg-dark-industrial .section-title {
      color: #ffffff;
    }
    .section-lead {
      font-size: 0.98rem;
      color: var(--g-muted);
      max-width: 820px;
      margin-bottom: 0;
    }
    .bg-dark-industrial .section-lead {
      color: #94a3b8;
    }

    /* 工业卡片系统 */
    .industrial-card {
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      padding: 1.8rem;
      height: 100%;
      box-shadow: var(--g-shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .industrial-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--g-shadow-md);
      border-color: #93c5fd;
    }
    .card-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: 8px;
      background: #e0f2fe;
      color: var(--g-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 1.2rem;
    }
    .industrial-card h3, .industrial-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--g-dark);
    }
    .industrial-card p {
      font-size: 0.925rem;
      color: #475569;
      line-height: 1.65;
      margin-bottom: 1rem;
      flex-grow: 1;
    }

    /* 叙事卡片与图文 */
    .feature-img-box {
      border-radius: var(--g-radius);
      overflow: hidden;
      box-shadow: var(--g-shadow-md);
      border: 1px solid var(--g-border);
      height: 100%;
      max-height: 380px;
    }
    .feature-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }
    .feature-img-box:hover img {
      transform: scale(1.03);
    }

    /* 痛点对比横幅与卡片 */
    .pain-card {
      border-left: 4px solid #ef4444;
      background: #fff5f5;
      padding: 1.5rem;
      border-radius: 4px;
      height: 100%;
    }
    .pain-card h4 {
      color: #b91c1c;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .pain-card p {
      font-size: 0.9rem;
      color: #7f1d1d;
      margin: 0;
    }
    .solution-card {
      border-left: 4px solid var(--g-secondary);
      background: #f0fdfa;
      padding: 1.5rem;
      border-radius: 4px;
      height: 100%;
    }
    .solution-card h4 {
      color: #0f766e;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .solution-card p {
      font-size: 0.9rem;
      color: #134e4a;
      margin: 0;
    }

    /* 流程步骤 */
    .step-card {
      position: relative;
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      padding: 1.75rem;
      height: 100%;
      box-shadow: var(--g-shadow-sm);
    }
    .step-index-pill {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 800;
      color: var(--g-secondary);
      background: #ccfbf1;
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 0.8rem;
    }

    /* 参数指标表 */
    .spec-table-box {
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      overflow: hidden;
      box-shadow: var(--g-shadow-sm);
    }
    .spec-table-box table {
      margin-bottom: 0;
    }
    .spec-table-box th {
      background-color: #f1f5f9;
      color: var(--g-dark);
      font-weight: 700;
      border-bottom: 2px solid #cbd5e1;
    }
    .spec-table-box td {
      vertical-align: middle;
      color: #475569;
      font-size: 0.925rem;
    }

    /* 适用场景卡片 */
    .scenario-card {
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      padding: 1.5rem;
      transition: all 0.25s ease;
      height: 100%;
    }
    .scenario-card:hover {
      border-color: var(--g-secondary);
      box-shadow: var(--g-shadow-md);
    }
    .scenario-card h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--g-primary);
      margin-bottom: 0.5rem;
    }

    /* 按钮 */
    .btn-brand-primary {
      background-color: var(--g-primary);
      color: #ffffff;
      font-weight: 600;
      padding: 0.75rem 1.6rem;
      border-radius: 6px;
      border: 1px solid var(--g-primary);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-primary:hover {
      background-color: var(--g-primary-hover);
      color: #ffffff;
      box-shadow: var(--g-shadow-md);
    }
    .btn-brand-outline {
      border: 1px solid #cbd5e1;
      color: #ffffff;
      font-weight: 600;
      padding: 0.75rem 1.5rem;
      border-radius: 6px;
      background: rgba(255,255,255,0.08);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-outline:hover {
      background: rgba(255,255,255,0.2);
      color: #ffffff;
      border-color: #ffffff;
    }

    /* 页脚 */
    .site-footer {
      background-color: #081a26;
      color: #cbd5e1;
      padding: 4.5rem 0 2rem;
      border-top: 1px solid #1e3a52;
    }
    .site-footer h5 {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 0.6rem;
    }
    .footer-links a {
      color: #94a3b8;
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: #5eead4;
      padding-left: 4px;
    }
    .footer-bottom {
      margin-top: 3.5rem;
      padding-top: 1.5rem;
      border-top: 1px solid rgba(255,255,255,0.08);
      font-size: 0.85rem;
    }

    @media (max-width: 991.98px) {
      .hero-category-h1 {
        font-size: 1.9rem;
      }
      .section-block {
        padding: 3.5rem 0;
      }
    }

/* roulang page: category4 */
:root {
      --g-primary: #0b3b60;
      --g-primary-hover: #082d49;
      --g-secondary: #008779;
      --g-accent: #e67e22;
      --g-dark: #1e293b;
      --g-light: #f8fafc;
      --g-muted: #64748b;
      --g-border: #e2e8f0;
      --g-card-bg: #ffffff;
      --g-radius: 8px;
      --g-shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --g-shadow-md: 0 6px 18px rgba(11,59,96,0.08);
      --g-shadow-lg: 0 12px 30px rgba(11,59,96,0.12);
      --g-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      font-family: var(--g-font-sans);
      color: var(--g-dark);
      background-color: #fdfdfd;
      line-height: 1.68;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }
    a:hover {
      color: var(--g-secondary);
    }
    .site-header {
      background: #ffffff;
      box-shadow: var(--g-shadow-sm);
      position: sticky;
      top: 0;
      z-index: 1030;
      border-bottom: 1px solid var(--g-border);
    }
    .navbar-brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--g-primary);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .navbar-brand-text i {
      color: var(--g-secondary);
      font-size: 1.35rem;
    }
    .nav-link {
      font-weight: 600;
      color: var(--g-dark) !important;
      padding: 0.5rem 1rem !important;
      font-size: 0.95rem;
      border-radius: 4px;
      transition: all 0.2s ease;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--g-primary) !important;
      background-color: #f1f5f9;
    }
    .nav-stage-tag {
      font-size: 0.7rem;
      padding: 1px 6px;
      border-radius: 4px;
      margin-left: 4px;
      vertical-align: middle;
    }

    /* 创作者主页头图 / Hero Blueprint */
    .creator-hero {
      background: linear-gradient(rgba(11, 59, 96, 0.92), rgba(15, 30, 48, 0.95)), url('/assets/images/5d4c31d8952a1788.webp') center/cover no-repeat;
      color: #ffffff;
      padding: 3.5rem 0 3rem;
      border-bottom: 3px solid var(--g-secondary);
    }
    .creator-profile-card {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      flex-wrap: wrap;
    }
    .creator-avatar-wrap {
      width: 90px;
      height: 90px;
      border-radius: 50%;
      border: 3px solid #38bdf8;
      background: #0f172a;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2.2rem;
      color: #38bdf8;
      box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    }
    .creator-info h1 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 0.3rem;
      color: #ffffff;
      letter-spacing: -0.5px;
    }
    .creator-badges {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-top: 0.5rem;
    }
    .creator-badge {
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.25);
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.78rem;
      color: #e2e8f0;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }
    .creator-badge.highlight {
      background: rgba(0, 135, 121, 0.4);
      border-color: var(--g-secondary);
      color: #5eead4;
    }
    .creator-stat-box {
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 8px;
      padding: 1rem 1.4rem;
      text-align: center;
      min-width: 130px;
    }
    .creator-stat-num {
      font-size: 1.5rem;
      font-weight: 800;
      color: #38bdf8;
      line-height: 1.2;
    }
    .creator-stat-lbl {
      font-size: 0.8rem;
      color: #94a3b8;
      margin-top: 2px;
    }

    /* 板块通用 */
    .section-block {
      padding: 4.5rem 0;
      border-bottom: 1px solid #f1f5f9;
    }
    .section-block.bg-alt {
      background-color: #f8fafc;
    }
    .section-block.bg-dark-industrial {
      background-color: #0b1e2d;
      color: #ffffff;
    }
    .section-header {
      margin-bottom: 2.8rem;
    }
    .section-kicker {
      text-transform: uppercase;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--g-secondary);
      letter-spacing: 1px;
      margin-bottom: 0.4rem;
      display: block;
    }
    .section-title {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--g-primary);
      letter-spacing: -0.5px;
      margin-bottom: 0.75rem;
    }
    .bg-dark-industrial .section-title {
      color: #ffffff;
    }
    .section-lead {
      font-size: 0.98rem;
      color: var(--g-muted);
      max-width: 820px;
      margin-bottom: 0;
    }
    .bg-dark-industrial .section-lead {
      color: #94a3b8;
    }

    /* 卡片体系 */
    .industrial-card {
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      padding: 1.8rem;
      height: 100%;
      box-shadow: var(--g-shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .industrial-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--g-shadow-md);
      border-color: #93c5fd;
    }
    .card-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: 8px;
      background: #e0f2fe;
      color: var(--g-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 1.2rem;
    }
    .industrial-card h3, .industrial-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--g-dark);
    }
    .industrial-card p {
      font-size: 0.925rem;
      color: #475569;
      line-height: 1.65;
      margin-bottom: 1rem;
      flex-grow: 1;
    }

    /* 痛点与对策卡 */
    .pain-card {
      border-left: 4px solid #ef4444;
      background: #fff5f5;
      padding: 1.5rem;
      border-radius: 4px;
      height: 100%;
    }
    .pain-card h4 {
      color: #b91c1c;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .pain-card p {
      font-size: 0.9rem;
      color: #7f1d1d;
      margin: 0;
    }
    .solution-card {
      border-left: 4px solid var(--g-secondary);
      background: #f0fdfa;
      padding: 1.5rem;
      border-radius: 4px;
      height: 100%;
    }
    .solution-card h4 {
      color: #0f766e;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .solution-card p {
      font-size: 0.9rem;
      color: #134e4a;
      margin: 0;
    }

    /* 步骤流式卡 */
    .step-badge {
      display: inline-block;
      width: 32px;
      height: 32px;
      line-height: 32px;
      text-align: center;
      background: var(--g-primary);
      color: #fff;
      border-radius: 50%;
      font-weight: 700;
      font-size: 0.9rem;
      margin-bottom: 0.8rem;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      padding: 1.6rem;
      position: relative;
      height: 100%;
    }

    /* 成果数据格 */
    .kpi-box {
      border-bottom: 3px solid var(--g-secondary);
      background: #ffffff;
      padding: 1.5rem;
      border-radius: var(--g-radius);
      box-shadow: var(--g-shadow-sm);
      text-align: center;
    }
    .kpi-box .val {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--g-primary);
    }
    .kpi-box .unit {
      font-size: 1rem;
      color: var(--g-muted);
      font-weight: normal;
    }

    /* 按钮 */
    .btn-brand-primary {
      background-color: var(--g-primary);
      color: #ffffff;
      font-weight: 600;
      padding: 0.75rem 1.6rem;
      border-radius: 6px;
      border: 1px solid var(--g-primary);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-primary:hover {
      background-color: var(--g-primary-hover);
      color: #ffffff;
    }
    .btn-brand-outline {
      border: 1px solid #38bdf8;
      color: #ffffff;
      font-weight: 600;
      padding: 0.75rem 1.6rem;
      border-radius: 6px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(56, 189, 248, 0.1);
    }
    .btn-brand-outline:hover {
      background: #38bdf8;
      color: #0b1e2d;
    }

    /* 页脚 */
    .site-footer {
      background: #0b1e2d;
      color: #cbd5e1;
      padding: 4.5rem 0 2rem;
      border-top: 4px solid var(--g-secondary);
    }
    .site-footer h5 {
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 0.6rem;
    }
    .footer-links a {
      color: #94a3b8;
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: #ffffff;
      padding-left: 4px;
    }
    .footer-bottom {
      margin-top: 3.5rem;
      padding-top: 1.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    @media (max-width: 991px) {
      .creator-hero { padding: 2.5rem 0; }
      .creator-info h1 { font-size: 1.6rem; }
      .creator-stat-box { min-width: 100px; padding: 0.8rem; }
      .section-block { padding: 3rem 0; }
    }

/* roulang page: category3 */
:root {
      --g-primary: #0b3b60;
      --g-primary-hover: #082d49;
      --g-secondary: #008779;
      --g-accent: #e67e22;
      --g-dark: #1e293b;
      --g-light: #f8fafc;
      --g-muted: #64748b;
      --g-border: #e2e8f0;
      --g-card-bg: #ffffff;
      --g-radius: 8px;
      --g-shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --g-shadow-md: 0 6px 18px rgba(11,59,96,0.08);
      --g-shadow-lg: 0 12px 30px rgba(11,59,96,0.12);
      --g-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      font-family: var(--g-font-sans);
      color: var(--g-dark);
      background-color: #fcfdfe;
      line-height: 1.68;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }
    a:hover {
      color: var(--g-secondary);
    }
    .site-header {
      background: #ffffff;
      box-shadow: var(--g-shadow-sm);
      position: sticky;
      top: 0;
      z-index: 1030;
      border-bottom: 1px solid var(--g-border);
    }
    .navbar-brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--g-primary);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .navbar-brand-text i {
      color: var(--g-secondary);
      font-size: 1.35rem;
    }
    .nav-link {
      font-weight: 600;
      color: var(--g-dark) !important;
      padding: 0.5rem 1rem !important;
      font-size: 0.95rem;
      border-radius: 4px;
      transition: all 0.2s ease;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--g-primary) !important;
      background-color: #f1f5f9;
    }
    .nav-stage-tag {
      font-size: 0.7rem;
      padding: 1px 6px;
      border-radius: 4px;
      margin-left: 4px;
      vertical-align: middle;
    }
    .hero-roadmap {
      background: linear-gradient(135deg, #0b2238 0%, #0b3b60 65%, #0d4a7a 100%);
      color: #ffffff;
      padding: 4.2rem 0 3.8rem;
      border-bottom: 1px solid #1e3a5f;
      position: relative;
      overflow: hidden;
    }
    .hero-roadmap::after {
      content: "";
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      width: 45%;
      background: url('/assets/images/5d4c31d8952a1788.webp') center/cover no-repeat;
      opacity: 0.12;
      pointer-events: none;
    }
    .hero-h1 {
      font-size: 2.25rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 1rem;
      letter-spacing: -0.5px;
    }
    .hero-p {
      font-size: 1.05rem;
      color: #cbd5e1;
      line-height: 1.75;
      margin-bottom: 1.75rem;
      max-width: 780px;
    }
    .roadmap-track {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 12px;
      padding: 1.5rem;
      backdrop-filter: blur(8px);
    }
    .roadmap-milestones {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1rem;
      position: relative;
    }
    .milestone-item {
      position: relative;
      padding-top: 1.6rem;
      border-top: 3px solid rgba(255, 255, 255, 0.25);
    }
    .milestone-item.active {
      border-top-color: var(--g-secondary);
    }
    .milestone-item.upcoming {
      border-top-color: var(--g-accent);
    }
    .milestone-dot {
      position: absolute;
      top: -9px;
      left: 0;
      width: 15px;
      height: 15px;
      border-radius: 50%;
      background: #ffffff;
      border: 3px solid var(--g-primary);
    }
    .milestone-item.active .milestone-dot {
      background: var(--g-secondary);
      box-shadow: 0 0 10px rgba(0, 135, 121, 0.8);
    }
    .milestone-item.upcoming .milestone-dot {
      background: var(--g-accent);
      box-shadow: 0 0 10px rgba(230, 126, 34, 0.8);
    }
    .milestone-tag {
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 0.25rem;
    }
    .milestone-title {
      font-size: 0.925rem;
      font-weight: 700;
      margin-bottom: 0.2rem;
      color: #ffffff;
    }
    .milestone-desc {
      font-size: 0.8rem;
      color: #94a3b8;
      line-height: 1.45;
      margin: 0;
    }
    .sub-box-inline {
      background: #ffffff;
      border-radius: 8px;
      padding: 0.4rem;
      box-shadow: var(--g-shadow-md);
      display: flex;
      max-width: 480px;
    }
    .sub-box-inline input {
      border: none;
      padding: 0.6rem 1rem;
      font-size: 0.9rem;
      width: 100%;
      outline: none;
    }
    .sub-box-inline button {
      background: var(--g-secondary);
      color: #ffffff;
      border: none;
      padding: 0 1.25rem;
      font-weight: 600;
      font-size: 0.875rem;
      border-radius: 6px;
      white-space: nowrap;
      transition: background 0.2s ease;
    }
    .sub-box-inline button:hover {
      background: #007064;
    }
    .section-block {
      padding: 4.8rem 0;
      border-bottom: 1px solid #edf2f7;
    }
    .section-block.bg-alt {
      background-color: #f8fafc;
    }
    .section-block.bg-dark-industrial {
      background-color: #0b1e2d;
      color: #ffffff;
    }
    .section-header {
      margin-bottom: 2.8rem;
    }
    .section-kicker {
      text-transform: uppercase;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--g-secondary);
      letter-spacing: 1px;
      margin-bottom: 0.4rem;
      display: block;
    }
    .section-title {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--g-primary);
      letter-spacing: -0.5px;
      margin-bottom: 0.75rem;
    }
    .bg-dark-industrial .section-title {
      color: #ffffff;
    }
    .section-lead {
      font-size: 0.98rem;
      color: var(--g-muted);
      max-width: 840px;
      margin-bottom: 0;
    }
    .bg-dark-industrial .section-lead {
      color: #94a3b8;
    }
    .pain-metric-box {
      background: #fff5f5;
      border: 1px solid #fed7d7;
      border-left: 4px solid #e53e3e;
      border-radius: var(--g-radius);
      padding: 1.5rem;
      height: 100%;
    }
    .pain-metric-box h4 {
      font-size: 1.08rem;
      font-weight: 700;
      color: #9b2c2c;
      margin-bottom: 0.5rem;
    }
    .pain-metric-box p {
      font-size: 0.9rem;
      color: #742a2a;
      line-height: 1.6;
      margin: 0;
    }
    .solution-showcase-card {
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      overflow: hidden;
      box-shadow: var(--g-shadow-sm);
      height: 100%;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .solution-showcase-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--g-shadow-md);
    }
    .solution-showcase-card .card-body {
      padding: 1.8rem;
    }
    .step-chain-item {
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      padding: 1.8rem;
      position: relative;
      height: 100%;
      box-shadow: var(--g-shadow-sm);
    }
    .step-index-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: #e0f2fe;
      color: var(--g-primary);
      font-weight: 800;
      font-size: 1.05rem;
      margin-bottom: 1.2rem;
    }
    .data-kpi-card {
      background: #142838;
      border: 1px solid #22435e;
      border-radius: var(--g-radius);
      padding: 2rem 1.6rem;
      text-align: center;
    }
    .data-kpi-value {
      font-size: 2.4rem;
      font-weight: 800;
      color: #38bdf8;
      line-height: 1.2;
      margin-bottom: 0.4rem;
      font-variant-numeric: tabular-nums;
    }
    .data-kpi-label {
      font-size: 0.925rem;
      font-weight: 700;
      color: #f1f5f9;
      margin-bottom: 0.4rem;
    }
    .data-kpi-sub {
      font-size: 0.8rem;
      color: #94a3b8;
      margin: 0;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      padding: 1.6rem;
      height: 100%;
      box-shadow: var(--g-shadow-sm);
    }
    .case-card .quote-text {
      font-size: 0.92rem;
      color: #334155;
      font-style: italic;
      line-height: 1.7;
      margin-bottom: 1.2rem;
    }
    .case-client-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .client-avatar-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--g-primary);
      font-size: 1.15rem;
    }
    .article-item-card {
      display: flex;
      flex-direction: column;
      background: #ffffff;
      border: 1px solid var(--g-border);
      border-radius: var(--g-radius);
      padding: 1.6rem;
      height: 100%;
      transition: all 0.25s ease;
    }
    .article-item-card:hover {
      border-color: #93c5fd;
      box-shadow: var(--g-shadow-md);
    }
    .article-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--g-secondary);
      margin-bottom: 0.5rem;
    }
    .article-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 0.6rem;
      color: var(--g-dark);
    }
    .article-summary {
      font-size: 0.88rem;
      color: var(--g-muted);
      line-height: 1.6;
      margin-bottom: 1rem;
      flex-grow: 1;
    }
    .btn-brand-primary {
      background-color: var(--g-primary);
      color: #ffffff;
      font-weight: 600;
      padding: 0.75rem 1.6rem;
      border-radius: 6px;
      border: 1px solid var(--g-primary);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-primary:hover {
      background-color: var(--g-primary-hover);
      color: #ffffff;
    }
    .btn-brand-secondary {
      background-color: var(--g-secondary);
      color: #ffffff;
      font-weight: 600;
      padding: 0.75rem 1.6rem;
      border-radius: 6px;
      border: 1px solid var(--g-secondary);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-brand-secondary:hover {
      background-color: #007064;
      color: #ffffff;
    }
    .site-footer {
      background-color: #071520;
      color: #ffffff;
      padding: 4.5rem 0 2rem;
      border-top: 1px solid #132b3e;
    }
    .site-footer h5 {
      color: #ffffff;
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 0.6rem;
    }
    .footer-links a {
      color: #94a3b8;
      font-size: 0.88rem;
    }
    .footer-links a:hover {
      color: #38bdf8;
      padding-left: 4px;
    }
    .footer-bottom {
      margin-top: 3.5rem;
      padding-top: 1.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    @media (max-width: 991px) {
      .roadmap-milestones {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 2rem;
      }
      .hero-roadmap::after {
        display: none;
      }
    }
    @media (max-width: 575px) {
      .roadmap-milestones {
        grid-template-columns: 1fr;
      }
      .hero-h1 {
        font-size: 1.75rem;
      }
      .sub-box-inline {
        flex-direction: column;
      }
      .sub-box-inline button {
        padding: 0.6rem;
      }
    }

/* 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}