/* roulang page: index */
:root {
      --primary: #F59E0B;
      --primary-hover: #D97706;
      --primary-glow: rgba(245, 158, 11, 0.28);
      --accent: #FF5400;
      --secondary-tag: #8B5CF6;
      --bg-main: #0D0F12;
      --bg-panel: #16191F;
      --bg-card: #20242D;
      --bg-hover: #262B37;
      --border-subtle: #2C3240;
      --border-highlight: #404859;
      --text-white: #FFFFFF;
      --text-muted: #9CA3AF;
      --text-subtle: #6B7280;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

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

    body {
      background-color: var(--bg-main);
      color: var(--text-muted);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      padding-bottom: 72px;
    }

    h1, h2, h3, h4, h5, h6 {
      color: var(--text-white);
      font-weight: 700;
      letter-spacing: -0.02em;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

    /* 招投标风格通知顶栏与导航 */
    .tender-topbar {
      background: #11141A;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 0.85rem;
      padding: 6px 0;
    }

    .live-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10B981;
      margin-right: 6px;
      animation: pulseGreen 1.8s infinite;
    }

    @keyframes pulseGreen {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
    }

    .site-nav {
      background-color: rgba(13, 15, 18, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
      position: sticky;
      top: 0;
      z-index: 1000;
    }

    .nav-brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-white);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .nav-brand-title svg {
      fill: var(--primary);
      width: 26px;
      height: 26px;
    }

    .nav-link-custom {
      color: #D1D5DB !important;
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 16px !important;
      border-radius: var(--radius-sm);
      transition: all 0.2s;
    }

    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--text-white) !important;
      background: var(--bg-card);
      box-shadow: inset 0 0 0 1px var(--border-highlight);
    }

    .tender-chip {
      display: inline-flex;
      align-items: center;
      background: #1C222E;
      border: 1px solid #323B4E;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 0.8rem;
      color: #CBD5E1;
    }

    /* 按钮与通用样式 */
    .btn-action-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: #000;
      font-weight: 700;
      border: none;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 18px var(--primary-glow);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .btn-action-primary:hover {
      background: linear-gradient(135deg, #FFB020 0%, #FF681A 100%);
      color: #000;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px var(--primary-glow);
    }

    .btn-action-secondary {
      background: var(--bg-card);
      color: var(--text-white);
      font-weight: 600;
      border: 1px solid var(--border-highlight);
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      transition: all 0.25s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .btn-action-secondary:hover {
      background: var(--bg-hover);
      color: var(--primary);
      border-color: var(--primary);
    }

    /* 板块通用间距与样式 */
    .section-block {
      padding: 75px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      position: relative;
    }

    .section-header {
      margin-bottom: 48px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--primary);
      background: rgba(245, 158, 11, 0.12);
      border: 1px solid rgba(245, 158, 11, 0.25);
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2rem;
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .section-desc {
      max-width: 780px;
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .custom-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
      height: 100%;
      position: relative;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .custom-card:hover {
      border-color: var(--border-highlight);
      transform: translateY(-4px);
      box-shadow: 0 14px 30px rgba(0, 0, 0, 0.45);
    }

    /* 1. Hero 问卷自测选型视窗 */
    .hero-wrapper {
      padding: 85px 0 70px 0;
      background: radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.08) 0%, transparent 60%);
    }

    .hero-h1 {
      font-size: 2.85rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 22px;
    }

    .hero-h1 span {
      background: linear-gradient(135deg, #FFFFFF 30%, var(--primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .quiz-box {
      background: var(--bg-card);
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
      position: relative;
    }

    .quiz-pill-select {
      display: flex;
      gap: 10px;
      margin-bottom: 18px;
      flex-wrap: wrap;
    }

    .quiz-pill {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 0.85rem;
      color: #D1D5DB;
      cursor: pointer;
      user-select: none;
      transition: 0.2s;
    }

    .quiz-pill.active {
      background: var(--primary);
      color: #000;
      font-weight: 700;
      border-color: var(--primary);
    }

    .quiz-result-box {
      background: #14171E;
      border-radius: var(--radius-sm);
      border-left: 4px solid var(--primary);
      padding: 16px 20px;
      margin-top: 20px;
      font-size: 0.92rem;
    }

    /* 2. 卖点三连 */
    .feature-num {
      font-size: 2.5rem;
      font-weight: 900;
      color: rgba(245, 158, 11, 0.35);
      line-height: 1;
      margin-bottom: 16px;
    }

    /* 3. 场景演示 */
    .screen-mock {
      background: #000;
      border: 2px solid var(--border-highlight);
      border-radius: var(--radius-md);
      padding: 18px;
      position: relative;
      overflow: hidden;
      min-height: 280px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
    }

    .subtitle-overlay {
      background: rgba(0, 0, 0, 0.75);
      border-radius: 6px;
      padding: 10px 18px;
      text-align: center;
      color: #FFD700;
      font-weight: 600;
      font-size: 1.1rem;
      letter-spacing: 0.05em;
      border: 1px dashed rgba(255, 215, 0, 0.4);
    }

    /* 4. 社会认同与指标 */
    .metric-data {
      font-size: 2.4rem;
      font-weight: 800;
      color: var(--text-white);
      line-height: 1;
      margin-bottom: 6px;
    }

    .metric-sub {
      font-size: 0.88rem;
      color: var(--text-subtle);
    }

    /* 5. 传统对比 */
    .vs-table-card {
      background: var(--bg-panel);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      overflow: hidden;
    }

    .vs-row {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      padding: 16px 24px;
      border-bottom: 1px solid var(--border-subtle);
      align-items: center;
    }

    .vs-row:last-child {
      border-bottom: none;
    }

    .vs-row.head {
      background: #191D26;
      font-weight: 700;
      color: var(--text-white);
    }

    .bad-text {
      color: #EF4444;
      font-size: 0.9rem;
    }

    .good-text {
      color: #10B981;
      font-weight: 600;
      font-size: 0.95rem;
    }

    /* 6. CMS 资讯列表 */
    .cms-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: all 0.3s;
    }

    .cms-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
    }

    .cms-thumb-holder {
      background: #1A1F29;
      height: 140px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-bottom: 1px solid var(--border-subtle);
      position: relative;
    }

    .cms-badge {
      position: absolute;
      top: 12px;
      left: 12px;
      background: var(--accent);
      color: #fff;
      font-size: 0.72rem;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 700;
    }

    .cms-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .cms-meta {
      font-size: 0.8rem;
      color: var(--text-subtle);
      margin-bottom: 8px;
    }

    .cms-title {
      font-size: 1.12rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .cms-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    /* 7. 分类入口 */
    .category-box {
      background: linear-gradient(145deg, #1C202A 0%, #151820 100%);
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-md);
      padding: 28px;
      text-align: center;
      transition: 0.3s;
    }

    .category-box:hover {
      border-color: var(--primary);
      box-shadow: 0 10px 25px rgba(245, 158, 11, 0.15);
    }

    /* 8. 技术解析代码条 */
    .code-console {
      background: #090B0E;
      border: 1px solid #2B3242;
      border-radius: var(--radius-md);
      padding: 24px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 0.88rem;
      color: #38BDF8;
      overflow-x: auto;
    }

    /* 10. FAQ 手风琴重塑 */
    .custom-accordion .accordion-item {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      margin-bottom: 14px;
      border-radius: var(--radius-sm) !important;
      overflow: hidden;
    }

    .custom-accordion .accordion-button {
      background: var(--bg-panel);
      color: var(--text-white);
      font-weight: 600;
      box-shadow: none;
      padding: 20px;
    }

    .custom-accordion .accordion-button:not(.collapsed) {
      color: var(--primary);
      background: var(--bg-card);
    }

    .custom-accordion .accordion-body {
      background: var(--bg-card);
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
      padding: 20px;
      border-top: 1px solid var(--border-subtle);
    }

    /* 13. 固定吸底长条 */
    .fixed-action-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(18, 21, 28, 0.96);
      backdrop-filter: blur(16px);
      border-top: 1px solid var(--border-highlight);
      padding: 14px 0;
      z-index: 999;
    }

    /* 页脚 */
    .site-footer {
      background: #080A0D;
      border-top: 1px solid var(--border-subtle);
      padding: 50px 0 35px 0;
      font-size: 0.88rem;
      color: var(--text-subtle);
    }

    .footer-title {
      font-size: 1rem;
      color: var(--text-white);
      margin-bottom: 18px;
    }

    .footer-links li {
      list-style: none;
      margin-bottom: 10px;
    }

    .footer-links a:hover {
      color: var(--primary);
    }

    @media (max-width: 768px) {
      .hero-h1 {
        font-size: 2rem;
      }
      .vs-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }
      .quiz-box {
        padding: 20px;
      }
      .section-block {
        padding: 50px 0;
      }
    }

/* roulang page: article */
:root {
      --primary: #F59E0B;
      --primary-hover: #D97706;
      --primary-glow: rgba(245, 158, 11, 0.28);
      --accent: #FF5400;
      --secondary-tag: #8B5CF6;
      --bg-main: #0D0F12;
      --bg-panel: #16191F;
      --bg-card: #20242D;
      --bg-hover: #262B37;
      --border-subtle: #2C3240;
      --border-highlight: #404859;
      --text-white: #FFFFFF;
      --text-muted: #9CA3AF;
      --text-subtle: #6B7280;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-muted);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      padding-bottom: 72px;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }
    .tender-topbar {
      background: #11141A;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 0.85rem;
      padding: 6px 0;
    }
    .tender-chip {
      display: inline-flex;
      align-items: center;
      background: #1C222E;
      border: 1px solid #323B4E;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 0.8rem;
      color: #CBD5E1;
    }
    .pulse-dot {
      width: 7px;
      height: 7px;
      background: #10B981;
      border-radius: 50%;
      margin-right: 8px;
      display: inline-block;
      box-shadow: 0 0 8px #10B981;
    }
    .site-nav {
      background-color: rgba(13, 15, 18, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .nav-brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-white);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .nav-brand-title svg {
      fill: var(--primary);
      width: 26px;
      height: 26px;
    }
    .nav-link-custom {
      color: #D1D5DB !important;
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 16px !important;
      border-radius: var(--radius-sm);
      transition: all 0.2s;
    }
    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--text-white) !important;
      background: var(--bg-card);
      box-shadow: inset 0 0 0 1px var(--border-highlight);
    }
    .btn-action-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: #000;
      font-weight: 700;
      border: none;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 18px var(--primary-glow);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-action-primary:hover {
      background: linear-gradient(135deg, #FFB020 0%, #FF681A 100%);
      color: #000;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px var(--primary-glow);
    }
    .btn-action-secondary {
      background: var(--bg-card);
      color: var(--text-white);
      font-weight: 600;
      border: 1px solid var(--border-highlight);
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      transition: all 0.25s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-action-secondary:hover {
      background: var(--bg-hover);
      color: var(--primary);
      border-color: var(--primary);
    }
    .article-header-section {
      padding: 40px 0 24px 0;
      border-bottom: 1px solid var(--border-subtle);
      background: radial-gradient(circle at 90% 10%, rgba(245, 158, 11, 0.06) 0%, transparent 50%);
    }
    .custom-breadcrumb {
      font-size: 0.85rem;
      margin-bottom: 18px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
    }
    .custom-breadcrumb a {
      color: var(--text-muted);
    }
    .custom-breadcrumb a:hover {
      color: var(--primary);
    }
    .custom-breadcrumb span {
      color: var(--text-subtle);
    }
    .article-title-h1 {
      font-size: 2.15rem;
      font-weight: 800;
      line-height: 1.35;
      color: var(--text-white);
      margin-bottom: 18px;
    }
    .article-meta-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .article-badge {
      background: rgba(245, 158, 11, 0.15);
      border: 1px solid rgba(245, 158, 11, 0.35);
      color: var(--primary);
      padding: 3px 10px;
      border-radius: 999px;
      font-weight: 600;
      font-size: 0.78rem;
    }
    .article-card-box {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 30px;
    }
    .spec-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.88rem;
    }
    .spec-table td {
      padding: 10px 14px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .spec-table tr:last-child td {
      border-bottom: none;
    }
    .spec-label {
      color: var(--text-subtle);
      width: 35%;
    }
    .spec-val {
      color: var(--text-white);
      font-weight: 500;
    }
    .article-content-body {
      color: #D1D5DB;
      font-size: 1.05rem;
      line-height: 1.85;
      max-width: 860px;
      margin: 0 auto;
    }
    .article-content-body h2 {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--text-white);
      margin-top: 36px;
      margin-bottom: 18px;
      border-left: 4px solid var(--primary);
      padding-left: 14px;
    }
    .article-content-body h3 {
      font-size: 1.25rem;
      font-weight: 600;
      color: #F3F4F6;
      margin-top: 26px;
      margin-bottom: 14px;
    }
    .article-content-body p {
      margin-bottom: 20px;
    }
    .article-content-body ul, .article-content-body ol {
      margin-bottom: 24px;
      padding-left: 24px;
    }
    .article-content-body li {
      margin-bottom: 8px;
    }
    .article-content-body blockquote {
      background: var(--bg-card);
      border-left: 4px solid var(--secondary-tag);
      padding: 16px 20px;
      border-radius: var(--radius-sm);
      margin: 24px 0;
      color: #E5E7EB;
      font-style: italic;
    }
    .action-dispatch-box {
      background: linear-gradient(180deg, #1A1F29 0%, #12151B 100%);
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-md);
      padding: 30px;
      margin-top: 40px;
      margin-bottom: 40px;
    }
    .action-line-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: var(--bg-card);
      padding: 14px 20px;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      border: 1px solid var(--border-subtle);
    }
    .copy-link-input {
      background: #0F1217;
      border: 1px solid var(--border-subtle);
      color: #E5E7EB;
      border-radius: var(--radius-sm);
      padding: 8px 14px;
      font-size: 0.88rem;
      width: 100%;
    }
    .disclaimer-banner {
      background: #151820;
      border: 1px dashed var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      margin-bottom: 40px;
      font-size: 0.85rem;
      color: var(--text-subtle);
      line-height: 1.6;
    }
    .related-post-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: all 0.25s;
      display: block;
      height: 100%;
    }
    .related-post-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
      box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    }
    .related-post-title {
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .related-post-meta {
      font-size: 0.8rem;
      color: var(--text-subtle);
    }
    .feedback-input-box {
      background: #11141A;
      border: 1px solid var(--border-subtle);
      color: #FFFFFF;
      border-radius: var(--radius-sm);
      padding: 14px;
      width: 100%;
      resize: vertical;
    }
    .feedback-input-box:focus {
      outline: none;
      border-color: var(--primary);
    }
    .comment-bubble {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      padding: 16px 20px;
      margin-bottom: 14px;
    }
    .sticky-bottom-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(13, 15, 18, 0.96);
      backdrop-filter: blur(14px);
      border-top: 1px solid var(--border-highlight);
      padding: 14px 0;
      z-index: 990;
    }
    .site-footer {
      background-color: #080A0D;
      border-top: 1px solid var(--border-subtle);
      padding: 70px 0 35px 0;
      margin-top: 60px;
      font-size: 0.95rem;
    }
    .footer-title {
      color: var(--text-white);
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
      letter-spacing: 0.02em;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
      transition: color 0.2s;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    @media (max-width: 768px) {
      .article-title-h1 {
        font-size: 1.65rem;
      }
      .action-line-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .action-line-item .btn {
        width: 100%;
      }
    }

/* roulang page: category1 */
:root {
      --primary: #F59E0B;
      --primary-hover: #D97706;
      --primary-glow: rgba(245, 158, 11, 0.28);
      --accent: #FF5400;
      --secondary-tag: #8B5CF6;
      --bg-main: #0D0F12;
      --bg-panel: #16191F;
      --bg-card: #20242D;
      --bg-hover: #262B37;
      --border-subtle: #2C3240;
      --border-highlight: #404859;
      --text-white: #FFFFFF;
      --text-muted: #9CA3AF;
      --text-subtle: #6B7280;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-muted);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      padding-bottom: 72px;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

    .tender-topbar {
      background: #11141A;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 0.85rem;
      padding: 6px 0;
    }

    .site-nav {
      background-color: rgba(13, 15, 18, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
      position: sticky;
      top: 0;
      z-index: 1000;
    }

    .nav-brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-white);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .nav-brand-title svg {
      fill: var(--primary);
      width: 26px;
      height: 26px;
    }

    .nav-link-custom {
      color: #D1D5DB !important;
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 16px !important;
      border-radius: var(--radius-sm);
      transition: all 0.2s;
    }

    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--text-white) !important;
      background: var(--bg-card);
      box-shadow: inset 0 0 0 1px var(--border-highlight);
    }

    .tender-chip {
      display: inline-flex;
      align-items: center;
      background: #1C222E;
      border: 1px solid #323B4E;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 0.8rem;
      color: #CBD5E1;
    }

    .tender-chip .dot {
      width: 8px;
      height: 8px;
      background: #10B981;
      border-radius: 50%;
      margin-right: 8px;
      box-shadow: 0 0 8px #10B981;
    }

    .btn-action-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: #000;
      font-weight: 700;
      border: none;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 18px var(--primary-glow);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .btn-action-primary:hover {
      background: linear-gradient(135deg, #FFB020 0%, #FF681A 100%);
      color: #000;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px var(--primary-glow);
    }

    .section-block {
      padding: 55px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      position: relative;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--primary);
      background: rgba(245, 158, 11, 0.12);
      border: 1px solid rgba(245, 158, 11, 0.25);
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 1.85rem;
      line-height: 1.35;
      margin-bottom: 14px;
      color: var(--text-white);
      font-weight: 800;
    }

    .custom-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      position: relative;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .custom-card:hover {
      border-color: var(--border-highlight);
      transform: translateY(-4px);
      box-shadow: 0 14px 30px rgba(0, 0, 0, 0.45);
    }

    /* 分类专属看板区样式 */
    .cat-board-header {
      background: linear-gradient(180deg, rgba(22, 25, 31, 0.9) 0%, rgba(13, 15, 18, 0.95) 100%);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 36px 32px;
    }

    .cat-h1 {
      font-size: 2.3rem;
      font-weight: 900;
      color: var(--text-white);
      letter-spacing: -0.02em;
      margin-bottom: 12px;
    }

    .cat-h1 span {
      background: linear-gradient(135deg, #FFFFFF 20%, var(--primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .stat-badge {
      display: inline-flex;
      align-items: center;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      padding: 6px 14px;
      font-size: 0.85rem;
      color: #D1D5DB;
    }

    .sort-control-group {
      display: inline-flex;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      padding: 4px;
      gap: 4px;
    }

    .sort-pill {
      font-size: 0.82rem;
      color: var(--text-muted);
      padding: 5px 12px;
      border-radius: 6px;
      cursor: pointer;
      transition: all 0.2s;
    }

    .sort-pill.active, .sort-pill:hover {
      background: var(--primary);
      color: #000;
      font-weight: 700;
    }

    /* 筛选条 */
    .filter-shelf {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px 24px;
    }

    .filter-group-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: #9CA3AF;
      min-width: 80px;
    }

    .filter-chip-btn {
      font-size: 0.82rem;
      color: #D1D5DB;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      padding: 5px 14px;
      border-radius: 999px;
      transition: all 0.2s;
    }

    .filter-chip-btn:hover, .filter-chip-btn.active {
      color: #000;
      background: var(--primary);
      border-color: var(--primary);
      font-weight: 600;
    }

    /* 资讯与内容网格卡片 */
    .video-item-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .video-item-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    }

    .video-thumb-placeholder {
      aspect-ratio: 16 / 9;
      background: linear-gradient(135deg, #1C222E 0%, #11141A 100%);
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      border-bottom: 1px solid var(--border-subtle);
    }

    .badge-corner {
      position: absolute;
      top: 10px;
      left: 10px;
      background: rgba(245, 158, 11, 0.92);
      color: #000;
      font-size: 0.72rem;
      font-weight: 800;
      padding: 3px 8px;
      border-radius: 4px;
      letter-spacing: 0.05em;
    }

    .badge-rate {
      position: absolute;
      bottom: 10px;
      right: 10px;
      background: rgba(0, 0, 0, 0.8);
      color: #E5E7EB;
      font-size: 0.7rem;
      padding: 2px 6px;
      border-radius: 4px;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .video-card-body {
      padding: 18px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .video-card-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 10px;
      line-height: 1.45;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .video-card-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .video-card-meta {
      font-size: 0.75rem;
      color: var(--text-subtle);
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 10px;
    }

    /* 磁吸标签云 */
    .tag-cloud-chip {
      display: inline-block;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      color: #D1D5DB;
      padding: 8px 18px;
      border-radius: 999px;
      font-size: 0.85rem;
      margin: 5px;
      transition: all 0.2s;
    }

    .tag-cloud-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--bg-hover);
      transform: translateY(-2px);
    }

    /* 专题指南横幅 */
    .guide-banner-card {
      background: linear-gradient(135deg, #1C222E 0%, #16191F 100%);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 38px;
    }

    .guide-spec-box {
      background: rgba(13, 15, 18, 0.75);
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-md);
      padding: 22px;
    }

    /* 机制卡片 */
    .mech-icon-box {
      width: 46px;
      height: 46px;
      background: rgba(245, 158, 11, 0.12);
      border: 1px solid rgba(245, 158, 11, 0.3);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      color: var(--primary);
    }

    /* 反馈条 */
    .feedback-banner {
      background: #171A21;
      border: 1px dashed var(--primary);
      border-radius: var(--radius-md);
      padding: 24px 30px;
    }

    /* 页脚 */
    .site-footer {
      background: #08090C;
      border-top: 1px solid var(--border-subtle);
      padding: 60px 0 30px 0;
    }

    .footer-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 18px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .footer-links {
      list-style: none;
      padding-left: 0;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: #9CA3AF;
      font-size: 0.88rem;
    }

    .footer-links a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    @media (max-width: 768px) {
      .cat-h1 {
        font-size: 1.7rem;
      }
      .section-block {
        padding: 40px 0;
      }
      .guide-banner-card {
        padding: 22px;
      }
    }

/* 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}