/* roulang page: index */
:root {
      --brand-primary: #e50914;
      --brand-primary-hover: #b80710;
      --brand-dark: #0f1015;
      --brand-dark-card: #171923;
      --brand-accent: #00d2d3;
      --brand-gold: #ff9f43;
      --text-main: #1f2937;
      --text-muted: #64748b;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --border-color: #e2e8f0;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 6px 18px rgba(0,0,0,0.06);
      --shadow-lg: 0 12px 28px rgba(0,0,0,0.1);
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }

    /* 顶部双层导航 */
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1030;
      box-shadow: var(--shadow-sm);
    }
    .nav-top-bar {
      padding: 0.75rem 0;
      border-bottom: 1px solid #f1f5f9;
    }
    .brand-logo-text {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--brand-primary);
      letter-spacing: -0.5px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo-text i {
      font-size: 1.6rem;
    }
    .search-input-group {
      max-width: 440px;
      width: 100%;
    }
    .search-input-group input {
      border-radius: 20px 0 0 20px;
      border: 1px solid #cbd5e1;
      font-size: 0.9rem;
      padding-left: 1rem;
    }
    .search-input-group input:focus {
      box-shadow: none;
      border-color: var(--brand-primary);
    }
    .search-input-group button {
      border-radius: 0 20px 20px 0;
      background: var(--brand-primary);
      border-color: var(--brand-primary);
      color: #fff;
      padding: 0 1.25rem;
    }
    .search-input-group button:hover {
      background: var(--brand-primary-hover);
    }

    /* 第二层 Channel Tabs 频道条 */
    .channel-nav-bar {
      padding: 0.4rem 0;
      background: #ffffff;
      overflow-x: auto;
      white-space: nowrap;
    }
    .channel-nav-bar::-webkit-scrollbar {
      height: 3px;
    }
    .channel-nav-bar::-webkit-scrollbar-thumb {
      background: #e2e8f0;
      border-radius: 3px;
    }
    .channel-list {
      display: flex;
      gap: 0.5rem;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .channel-pill {
      font-size: 0.88rem;
      font-weight: 600;
      padding: 0.35rem 0.9rem;
      border-radius: 20px;
      color: #475569;
      display: inline-block;
    }
    .channel-pill:hover {
      background-color: #f1f5f9;
      color: var(--brand-primary);
    }
    .channel-pill.active {
      background-color: var(--brand-primary);
      color: #ffffff !important;
    }

    /* 蓝图：全宽浅色顶栏 + 矮横幅 Hero */
    .hero-strip {
      background: linear-gradient(135deg, #f8fafc 0%, #edf2f7 100%);
      border-bottom: 1px solid var(--border-color);
      padding: 2.5rem 0;
      position: relative;
      overflow: hidden;
    }
    .hero-strip::after {
      content: "";
      position: absolute;
      right: 0;
      top: 0;
      width: 45%;
      height: 100%;
      background-image: url('/assets/images/f166671363f282d3.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.08;
      pointer-events: none;
    }
    .hero-h1 {
      font-size: 1.85rem;
      font-weight: 800;
      color: #0f172a;
      line-height: 1.35;
      margin-bottom: 0.85rem;
      letter-spacing: -0.5px;
    }
    .hero-lead {
      font-size: 0.96rem;
      color: #475569;
      margin-bottom: 1.25rem;
      max-width: 820px;
      line-height: 1.68;
    }
    .hero-meta-strip {
      display: flex;
      flex-wrap: wrap;
      gap: 1.5rem;
      font-size: 0.85rem;
      color: #64748b;
    }
    .hero-meta-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .hero-meta-item i {
      color: var(--brand-primary);
    }

    /* 通用Section */
    .page-section {
      padding: 3.5rem 0;
      position: relative;
    }
    .section-alt {
      background-color: #ffffff;
      border-top: 1px solid #edf2f7;
      border-bottom: 1px solid #edf2f7;
    }
    .section-dark {
      background-color: #0d1117;
      color: #f1f5f9;
    }
    .section-heading-wrap {
      margin-bottom: 2rem;
    }
    .section-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: #0f172a;
      position: relative;
      display: inline-block;
      margin-bottom: 0.5rem;
    }
    .section-dark .section-title {
      color: #ffffff;
    }
    .section-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      max-width: 720px;
      line-height: 1.6;
    }
    .section-dark .section-desc {
      color: #94a3b8;
    }

    /* 板块组件卡片 */
    .metric-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .metric-box:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }
    .metric-value {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--brand-primary);
      margin-bottom: 0.25rem;
      font-family: Arial, sans-serif;
    }
    .metric-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 0.35rem;
    }
    .metric-sub {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 物料/资源卡 */
    .res-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .res-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .res-card-img-wrap {
      position: relative;
      padding-top: 56.25%;
      overflow: hidden;
      background: #1e293b;
    }
    .res-card-img-wrap img {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .res-card:hover .res-card-img-wrap img {
      transform: scale(1.05);
    }
    .badge-float {
      position: absolute;
      top: 10px;
      right: 10px;
      background: rgba(15, 23, 42, 0.75);
      backdrop-filter: blur(4px);
      color: #fff;
      font-size: 0.72rem;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
    }
    .res-card-body {
      padding: 1.25rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .res-card-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
      color: #0f172a;
    }
    .res-card-text {
      font-size: 0.85rem;
      color: #64748b;
      margin-bottom: 1rem;
      line-height: 1.55;
      flex-grow: 1;
    }
    .res-card-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid #f1f5f9;
      padding-top: 0.75rem;
      font-size: 0.8rem;
      color: #94a3b8;
    }

    /* 结算/保障卡 */
    .guarantee-card {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 1.25rem;
      display: flex;
      gap: 1rem;
      align-items: flex-start;
    }
    .guarantee-icon {
      width: 44px;
      height: 44px;
      background: #fee2e2;
      color: var(--brand-primary);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      flex-shrink: 0;
    }

    /* 案例/排行条目 */
    .case-item-row {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1rem 1.25rem;
      margin-bottom: 0.75rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: var(--transition);
    }
    .case-item-row:hover {
      border-color: var(--brand-primary);
      box-shadow: var(--shadow-sm);
    }

    /* 资讯列表网格 */
    .news-card-link {
      display: block;
      padding: 1rem;
      border-radius: var(--radius-md);
      border: 1px solid transparent;
      background: #ffffff;
      transition: var(--transition);
    }
    .news-card-link:hover {
      background: #f8fafc;
      border-color: #cbd5e1;
    }

    /* 表单组件 */
    .join-form-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.25rem;
      box-shadow: var(--shadow-lg);
    }
    .form-control, .form-select {
      border: 1px solid #cbd5e1;
      padding: 0.65rem 1rem;
      font-size: 0.9rem;
      border-radius: var(--radius-sm);
    }
    .form-control:focus, .form-select:focus {
      border-color: var(--brand-primary);
      box-shadow: 0 0 0 3px rgba(229, 9, 20, 0.15);
    }

    /* 按钮规范 */
    .btn-brand-primary {
      background-color: var(--brand-primary);
      color: #ffffff;
      border: none;
      font-weight: 600;
      padding: 0.6rem 1.4rem;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }
    .btn-brand-primary:hover {
      background-color: var(--brand-primary-hover);
      color: #ffffff;
    }
    .btn-brand-outline {
      border: 1px solid #cbd5e1;
      background: transparent;
      color: #334155;
      font-weight: 600;
      padding: 0.6rem 1.4rem;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }
    .btn-brand-outline:hover {
      border-color: var(--brand-primary);
      color: var(--brand-primary);
      background: #fff;
    }

    /* FAQ 样式定制 */
    .accordion-item {
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-sm) !important;
      margin-bottom: 0.75rem;
      overflow: hidden;
    }
    .accordion-button {
      font-weight: 600;
      font-size: 0.95rem;
      color: #1e293b;
      padding: 1rem 1.25rem;
      background: #fff;
    }
    .accordion-button:not(.collapsed) {
      color: var(--brand-primary);
      background-color: #fef2f2;
      box-shadow: none;
    }
    .accordion-body {
      font-size: 0.88rem;
      color: #475569;
      line-height: 1.65;
    }

    /* 页脚 */
    .site-footer {
      background-color: #0b0f19;
      color: #94a3b8;
      border-top: 1px solid #1e293b;
      font-size: 0.85rem;
      padding: 3.5rem 0 1.5rem 0;
    }
    .footer-heading {
      font-size: 0.95rem;
      font-weight: 700;
      color: #f8fafc;
      margin-bottom: 1.25rem;
    }
    .footer-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-list li {
      margin-bottom: 0.65rem;
    }
    .footer-list a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      margin-top: 2.5rem;
      padding-top: 1.5rem;
      text-align: center;
      font-size: 0.8rem;
      color: #64748b;
    }

    @media (max-width: 991.98px) {
      .hero-strip::after {
        opacity: 0.04;
        width: 100%;
      }
      .hero-h1 {
        font-size: 1.6rem;
      }
    }
    @media (max-width: 575.98px) {
      .page-section {
        padding: 2.5rem 0;
      }
      .hero-h1 {
        font-size: 1.35rem;
      }
      .brand-logo-text {
        font-size: 1.25rem;
      }
    }

/* roulang page: category1 */
:root {
            --brand-primary: #e50914;
            --brand-primary-hover: #b80710;
            --brand-dark: #0f1015;
            --brand-dark-card: #171923;
            --brand-accent: #00d2d3;
            --brand-gold: #ff9f43;
            --text-main: #1f2937;
            --text-muted: #64748b;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border-color: #e2e8f0;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
            --shadow-md: 0 6px 18px rgba(0,0,0,0.06);
            --shadow-lg: 0 12px 28px rgba(0,0,0,0.1);
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        /* 顶部双层导航 */
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: var(--shadow-sm);
        }
        .nav-top-bar {
            padding: 0.75rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .brand-logo-text {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--brand-primary);
            letter-spacing: -0.5px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo-text i {
            font-size: 1.6rem;
        }
        .search-input-group {
            max-width: 440px;
            width: 100%;
        }
        .search-input-group input {
            border-radius: 20px 0 0 20px;
            border: 1px solid #cbd5e1;
            font-size: 0.9rem;
            padding-left: 1rem;
        }
        .search-input-group input:focus {
            box-shadow: none;
            border-color: var(--brand-primary);
        }
        .search-input-group button {
            border-radius: 0 20px 20px 0;
            background: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
            padding: 0 1.25rem;
        }
        .search-input-group button:hover {
            background: var(--brand-primary-hover);
        }
        .btn-brand-primary {
            background-color: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            padding: 0.45rem 1.1rem;
            border-radius: 20px;
            transition: var(--transition);
        }
        .btn-brand-primary:hover {
            background-color: var(--brand-primary-hover);
            border-color: var(--brand-primary-hover);
            color: #fff;
        }
        /* 第二层 Channel Tabs 频道条 */
        .channel-nav-bar {
            padding: 0.4rem 0;
            background: #ffffff;
            overflow-x: auto;
            white-space: nowrap;
        }
        .channel-nav-bar::-webkit-scrollbar {
            height: 3px;
        }
        .channel-nav-bar::-webkit-scrollbar-thumb {
            background: #e2e8f0;
            border-radius: 3px;
        }
        .channel-list {
            display: flex;
            gap: 0.5rem;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .channel-pill {
            font-size: 0.88rem;
            font-weight: 600;
            padding: 0.35rem 0.9rem;
            border-radius: 20px;
            color: #475569;
            display: inline-block;
        }
        .channel-pill:hover {
            background-color: #f1f5f9;
            color: var(--brand-primary);
        }
        .channel-pill.active {
            background-color: var(--brand-primary);
            color: #ffffff !important;
        }
        /* 工业参数首屏 Hero */
        .spec-hero-section {
            background: linear-gradient(135deg, #0b0f19 0%, #1a2234 100%);
            color: #ffffff;
            padding: 3.5rem 0 3rem;
            border-bottom: 3px solid var(--brand-primary);
            position: relative;
            overflow: hidden;
        }
        .spec-hero-bg {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 48%;
            background-image: url('/assets/images/11aea7169675a72a.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            mask-image: linear-gradient(to left, rgba(0,0,0,1) 30%, rgba(0,0,0,0));
            -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1) 30%, rgba(0,0,0,0));
            pointer-events: none;
        }
        .hero-badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(229, 9, 20, 0.15);
            border: 1px solid rgba(229, 9, 20, 0.35);
            color: #ff6b6b;
            padding: 0.28rem 0.75rem;
            border-radius: 4px;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 1rem;
        }
        .hero-h1-spec {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 1rem;
            color: #ffffff;
        }
        .hero-h1-spec span {
            color: var(--brand-primary);
        }
        .hero-summary-text {
            font-size: 1rem;
            color: #cbd5e1;
            max-width: 660px;
            line-height: 1.7;
            margin-bottom: 1.8rem;
        }
        .spec-metric-bar {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 1rem 1.5rem;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            margin-bottom: 2rem;
        }
        .metric-cell {
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            padding-right: 0.75rem;
        }
        .metric-cell:last-child {
            border-right: none;
            padding-right: 0;
        }
        .metric-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: #38bdf8;
            font-family: Consolas, Monaco, "Courier New", monospace;
            line-height: 1.2;
        }
        .metric-label {
            font-size: 0.78rem;
            color: #94a3b8;
            margin-top: 3px;
        }
        .spec-action-group {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .btn-brand-accent {
            background-color: var(--brand-primary);
            color: #fff;
            font-weight: 700;
            padding: 0.65rem 1.6rem;
            border-radius: var(--radius-sm);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand-accent:hover {
            background-color: var(--brand-primary-hover);
            color: #fff;
        }
        .btn-brand-outline {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #f1f5f9;
            font-weight: 600;
            padding: 0.65rem 1.4rem;
            border-radius: var(--radius-sm);
            background: transparent;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }
        /* 通用Section */
        .page-section {
            padding: 4rem 0;
            position: relative;
        }
        .section-alt {
            background-color: #ffffff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-dark {
            background-color: #0b0f19;
            color: #f1f5f9;
        }
        .section-head {
            margin-bottom: 2.25rem;
        }
        .sub-tag {
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--brand-primary);
            display: block;
            margin-bottom: 0.35rem;
        }
        .section-title {
            font-size: 1.65rem;
            font-weight: 800;
            color: #0f172a;
            letter-spacing: -0.3px;
            margin-bottom: 0.5rem;
        }
        .section-dark .section-title {
            color: #ffffff;
        }
        .section-intro {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 760px;
            line-height: 1.65;
            margin-bottom: 0;
        }
        .section-dark .section-intro {
            color: #94a3b8;
        }
        /* 专题卡片网格 */
        .matrix-curated-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .matrix-curated-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: #cbd5e1;
        }
        .curated-card-media {
            position: relative;
            height: 200px;
            overflow: hidden;
            background-color: #1e293b;
        }
        .curated-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .matrix-curated-card:hover .curated-card-media img {
            transform: scale(1.06);
        }
        .card-pill-float {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(4px);
            color: #38bdf8;
            border: 1px solid rgba(56, 189, 248, 0.3);
            font-size: 0.72rem;
            font-weight: 700;
            padding: 3px 8px;
            border-radius: 4px;
        }
        .card-rate-float {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(229, 9, 20, 0.9);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 4px;
        }
        .curated-card-content {
            padding: 1.4rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .curated-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .curated-card-desc {
            font-size: 0.88rem;
            color: #64748b;
            line-height: 1.6;
            margin-bottom: 1.2rem;
            flex-grow: 1;
        }
        .curated-card-specs {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 1.2rem;
            padding-top: 0.85rem;
            border-top: 1px solid #f1f5f9;
        }
        .curated-spec-tag {
            font-size: 0.72rem;
            font-weight: 600;
            background: #f1f5f9;
            color: #475569;
            padding: 2px 8px;
            border-radius: 3px;
        }
        /* 参数对比矩阵表格卡片 */
        .spec-table-box {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .spec-custom-table {
            width: 100%;
            margin-bottom: 0;
            border-collapse: collapse;
        }
        .spec-custom-table th {
            background-color: #0f172a;
            color: #f8fafc;
            font-size: 0.9rem;
            font-weight: 700;
            padding: 1rem 1.25rem;
            border: none;
        }
        .spec-custom-table td {
            padding: 1rem 1.25rem;
            font-size: 0.88rem;
            color: #334155;
            border-bottom: 1px solid #e2e8f0;
            vertical-align: middle;
        }
        .spec-custom-table tr:hover td {
            background-color: #f8fafc;
        }
        .spec-pill-highlight {
            background: #fee2e2;
            color: var(--brand-primary);
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.8rem;
        }
        /* 实时节点状态 */
        .node-status-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            transition: var(--transition);
        }
        .node-status-card:hover {
            border-color: rgba(56, 189, 248, 0.4);
            background: rgba(255, 255, 255, 0.06);
        }
        .node-header-line {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        .node-name {
            font-size: 0.95rem;
            font-weight: 700;
            color: #f8fafc;
        }
        .node-indicator {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            color: #10b981;
            font-weight: 600;
        }
        .node-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: #10b981;
            box-shadow: 0 0 8px #10b981;
        }
        .node-meta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.5rem;
            font-size: 0.82rem;
            color: #94a3b8;
        }
        .node-meta-val {
            color: #e2e8f0;
            font-weight: 600;
            font-family: Consolas, Monaco, monospace;
        }
        /* 专题资讯时间线 */
        .timeline-container {
            position: relative;
            padding-left: 2rem;
        }
        .timeline-container::before {
            content: "";
            position: absolute;
            left: 7px;
            top: 10px;
            bottom: 10px;
            width: 2px;
            background: #e2e8f0;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2rem;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-node-dot {
            position: absolute;
            left: -2rem;
            top: 4px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: #ffffff;
            border: 3px solid var(--brand-primary);
        }
        .timeline-box {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            box-shadow: var(--shadow-sm);
        }
        .timeline-time {
            font-size: 0.8rem;
            color: #94a3b8;
            font-weight: 600;
            margin-bottom: 0.35rem;
        }
        .timeline-head {
            font-size: 1.05rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.5rem;
        }
        .timeline-summary {
            font-size: 0.88rem;
            color: #64748b;
            line-height: 1.6;
            margin: 0;
        }
        /* FAQ折叠面板 */
        .faq-accordion-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 1rem;
            overflow: hidden;
        }
        .faq-question-btn {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 1.1rem 1.4rem;
            font-size: 1rem;
            font-weight: 700;
            color: #0f172a;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-question-btn:hover {
            color: var(--brand-primary);
        }
        .faq-question-btn::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.85rem;
            transition: transform 0.25s ease;
        }
        .faq-question-btn:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }
        .faq-answer-body {
            padding: 0 1.4rem 1.2rem;
            font-size: 0.9rem;
            color: #64748b;
            line-height: 1.68;
        }
        /* 转化与接入表单区 */
        .conversion-wrapper {
            background: linear-gradient(135deg, #0d1117 0%, #161b22 100%);
            border: 1px solid #30363d;
            border-radius: var(--radius-lg);
            padding: 3rem;
            color: #ffffff;
            box-shadow: var(--shadow-lg);
        }
        .conversion-form-box {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 2rem;
        }
        .form-control-custom {
            background-color: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #ffffff;
            font-size: 0.9rem;
            padding: 0.65rem 1rem;
            border-radius: var(--radius-sm);
        }
        .form-control-custom:focus {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: var(--brand-primary);
            color: #ffffff;
            box-shadow: none;
        }
        .form-control-custom::placeholder {
            color: #94a3b8;
        }
        /* 页面底部与版权 */
        .site-footer {
            background-color: #0b0f19;
            border-top: 1px solid #1e293b;
            padding: 4rem 0 2rem;
            color: #cbd5e1;
        }
        .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #f8fafc;
            letter-spacing: 0.5px;
            margin-bottom: 1.2rem;
        }
        .footer-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-list li {
            margin-bottom: 0.65rem;
            font-size: 0.88rem;
        }
        .footer-list a:hover {
            color: var(--brand-primary);
            padding-left: 3px;
        }
        .footer-bottom {
            margin-top: 3.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid #1e293b;
            text-align: center;
            font-size: 0.82rem;
            color: #64748b;
        }
        /* 响应式断点控制 */
        @media (max-width: 991.98px) {
            .spec-metric-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .metric-cell:nth-child(2) {
                border-right: none;
            }
            .conversion-wrapper {
                padding: 2rem 1.5rem;
            }
        }
        @media (max-width: 767.98px) {
            .hero-h1-spec {
                font-size: 1.75rem;
            }
            .spec-metric-bar {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .metric-cell {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                padding-bottom: 0.75rem;
            }
            .metric-cell:last-child {
                border-bottom: none;
                padding-bottom: 0;
            }
            .spec-hero-bg {
                display: none;
            }
        }

/* 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}