/* roulang page: index */
:root {
      --primary-accent: #D63031;
      --primary-hover: #B71C1C;
      --primary-dark: #1E272E;
      --surface-dark: #0F1419;
      --surface-light: #F8F9FA;
      --surface-card: #FFFFFF;
      --text-main: #1E272E;
      --text-muted: #576574;
      --text-light: #F1F2F6;
      --border-color: rgba(30, 39, 46, 0.1);
      --border-dark: rgba(255, 255, 255, 0.12);
      --warning-amber: #E67E22;
      --success-green: #27AE60;
      --radius-sm: 4px;
      --radius-md: 6px;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
      --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
      --container-max: 1240px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--surface-light);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    .num-font {
      font-family: "DIN Alternate", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-weight: 700;
    }

    /* 顶栏信息与导航系统 */
    .top-info-bar {
      background-color: var(--surface-dark);
      color: #A4B0BE;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid var(--border-dark);
    }
    .top-info-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-info-list {
      display: flex;
      gap: 20px;
      list-style: none;
    }
    .top-info-list span {
      color: var(--primary-accent);
      margin-right: 4px;
    }

    .main-nav-wrapper {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: var(--shadow-sm);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--primary-dark);
    }
    .logo-mark {
      background: var(--primary-accent);
      color: #fff;
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      font-size: 18px;
      font-weight: 900;
    }
    .brand-logo span {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 600;
      padding-left: 8px;
      border-left: 1px solid #CED6E0;
    }

    .nav-links {
      display: flex;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 600;
      color: var(--primary-dark);
      position: relative;
      padding: 6px 0;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary-accent);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary-accent);
      transition: width 0.25s ease;
    }
    .nav-links a:hover::after, .nav-links a.active::after {
      width: 100%;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary-accent);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(214, 48, 49, 0.3);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      color: #FFFFFF;
      transform: translateY(-1px);
    }
    .btn-outline {
      background-color: transparent;
      border-color: rgba(255, 255, 255, 0.4);
      color: #FFFFFF;
    }
    .btn-outline:hover {
      background-color: rgba(255, 255, 255, 0.1);
      border-color: #FFFFFF;
      color: #FFFFFF;
    }
    .btn-outline-dark {
      background-color: transparent;
      border-color: var(--border-color);
      color: var(--primary-dark);
    }
    .btn-outline-dark:hover {
      border-color: var(--primary-dark);
      background-color: rgba(0,0,0,0.02);
    }

    /* 移动端汉堡按钮 */
    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }
    .menu-toggle span {
      width: 24px;
      height: 2px;
      background: var(--primary-dark);
      transition: 0.3s;
    }

    /* 通用章节样式 */
    .section-wrap {
      padding: 96px 0;
      position: relative;
    }
    .section-dark {
      background-color: var(--surface-dark);
      color: var(--text-light);
    }
    .section-grey {
      background-color: #EDF0F2;
    }
    .section-white {
      background-color: #FFFFFF;
    }
    .section-header {
      margin-bottom: 56px;
      max-width: 820px;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--primary-accent);
      background: rgba(214, 48, 49, 0.08);
      padding: 4px 10px;
      border-radius: 2px;
      margin-bottom: 12px;
      border: 1px solid rgba(214, 48, 49, 0.2);
    }
    .section-tag.tag-dark {
      background: rgba(214, 48, 49, 0.2);
      border-color: rgba(214, 48, 49, 0.4);
      color: #FF7675;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
      color: var(--primary-dark);
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: #A4B0BE;
    }

    /* 板块一：斜切Hero产品舞台 (蓝图-活力品牌：产品截图舞台居中，左右价值点与下载按钮组) */
    .hero-section {
      background: linear-gradient(135deg, #1E272E 0%, #0F1419 100%);
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
      padding: 80px 0 120px;
      clip-path: polygon(0 0, 100% 0, 100% calc(100% - 40px), 0 100%);
    }
    .hero-bg-overlay {
      position: absolute;
      inset: 0;
      opacity: 0.18;
      background-image: url('/assets/images/c6d79d56daf4bdd2.webp');
      background-size: cover;
      background-position: center;
      mix-blend-mode: luminosity;
    }
    .hero-stage-container {
      position: relative;
      z-index: 2;
      text-align: center;
    }
    .hero-title-box {
      max-width: 900px;
      margin: 0 auto 36px;
    }
    .hero-title-box h1 {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }
    .hero-title-box p {
      font-size: 17px;
      color: #CED6E0;
      line-height: 1.75;
      max-width: 780px;
      margin: 0 auto;
    }

    /* 居中舞台 + 左右两翼价值点 */
    .hero-stage-layout {
      display: grid;
      grid-template-columns: 280px 1fr 280px;
      align-items: center;
      gap: 32px;
      margin: 40px 0 48px;
    }
    .stage-wing {
      display: flex;
      flex-direction: column;
      gap: 24px;
      text-align: left;
    }
    .wing-right {
      text-align: right;
    }
    .wing-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-dark);
      padding: 16px 20px;
      border-radius: var(--radius-sm);
      backdrop-filter: blur(8px);
    }
    .wing-item h4 {
      font-size: 16px;
      font-weight: 700;
      color: #FF7675;
      margin-bottom: 6px;
    }
    .wing-item p {
      font-size: 13px;
      color: #A4B0BE;
      line-height: 1.5;
    }

    .stage-center-display {
      position: relative;
      background: radial-gradient(circle, rgba(214, 48, 49, 0.15) 0%, rgba(15, 20, 25, 0) 70%);
      padding: 20px;
    }
    .stage-center-display img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      border-radius: var(--radius-md);
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
      border: 1px solid var(--border-dark);
    }
    .stage-badge-center {
      position: absolute;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      background: rgba(15, 20, 25, 0.85);
      border: 1px solid var(--primary-accent);
      padding: 8px 18px;
      border-radius: 30px;
      font-size: 13px;
      color: #FFF;
      white-space: nowrap;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-top: 10px;
    }

    /* 指标大盘四联板条 */
    .metrics-bar-band {
      background: #FFFFFF;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      margin-top: 50px;
      text-align: left;
    }
    .metric-cell {
      padding: 24px 30px;
      border-right: 1px solid var(--border-color);
    }
    .metric-cell:last-child {
      border-right: none;
    }
    .metric-cell .num {
      font-size: 36px;
      color: var(--primary-dark);
      line-height: 1.1;
      display: block;
      margin-bottom: 4px;
    }
    .metric-cell .num span {
      font-size: 18px;
      color: var(--primary-accent);
      margin-left: 2px;
    }
    .metric-cell .label {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .metric-cell .sub {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块二：入口矩阵 (机械网格) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: var(--surface-card);
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(214, 48, 49, 0.4);
    }
    .matrix-card-img {
      height: 220px;
      overflow: hidden;
      position: relative;
    }
    .matrix-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .matrix-card:hover .matrix-card-img img {
      transform: scale(1.05);
    }
    .matrix-badge-status {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(30, 39, 46, 0.85);
      color: #FFFFFF;
      font-size: 11px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 2px;
      border-left: 3px solid var(--primary-accent);
    }
    .matrix-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .matrix-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }
    .matrix-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .param-spec-list {
      list-style: none;
      margin-bottom: 20px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }
    .param-spec-list li {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      padding: 5px 0;
      color: #576574;
    }
    .param-spec-list li strong {
      color: var(--primary-dark);
    }

    /* 板块三：最新动态 (时效技术情报) */
    .news-cards-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-digest-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-date {
      font-size: 12px;
      color: var(--primary-accent);
      font-weight: 700;
      margin-bottom: 8px;
    }
    .news-digest-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.4;
      color: var(--primary-dark);
    }
    .news-digest-brief {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    /* 板块四：精选分类 (实战装备分类深度卡) */
    .category-showcase {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .cat-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 24px 20px;
      border-radius: var(--radius-sm);
      position: relative;
    }
    .cat-box::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: transparent;
      transition: background 0.25s ease;
    }
    .cat-box:hover::before {
      background: var(--primary-accent);
    }
    .cat-box h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--primary-dark);
    }
    .cat-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块五：资讯 / 核心技术优势对比 (结果对比矩阵) */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .compare-panel {
      border-radius: var(--radius-sm);
      padding: 36px;
    }
    .compare-panel.traditional {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
    }
    .compare-panel.modern {
      background: #1E272E;
      color: #FFFFFF;
      border: 1px solid var(--primary-accent);
      box-shadow: 0 10px 30px rgba(214, 48, 49, 0.15);
    }
    .compare-heading {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 24px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .compare-panel.modern .compare-heading {
      border-bottom-color: rgba(255, 255, 255, 0.15);
      color: #FFFFFF;
    }
    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .compare-item {
      display: flex;
      gap: 16px;
      font-size: 14px;
      line-height: 1.6;
    }
    .compare-indicator {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 900;
      flex-shrink: 0;
      margin-top: 2px;
    }
    .indicator-cross {
      background: #FFD2D2;
      color: #D63031;
    }
    .indicator-check {
      background: #D63031;
      color: #FFFFFF;
    }

    /* 板块六：版本更新与技术演变里程碑 (时间轴) */
    .timeline-wrap {
      position: relative;
      max-width: 960px;
      margin: 0 auto;
    }
    .timeline-wrap::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 24px;
      width: 2px;
      background: var(--border-color);
    }
    .timeline-node {
      position: relative;
      padding-left: 64px;
      margin-bottom: 40px;
    }
    .timeline-dot {
      position: absolute;
      left: 17px;
      top: 4px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: #FFFFFF;
      border: 4px solid var(--primary-accent);
    }
    .timeline-content {
      background: #FFFFFF;
      padding: 24px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }
    .timeline-version {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary-accent);
      margin-bottom: 6px;
    }
    .timeline-content h4 {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }
    .timeline-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块七：App/多端协同地面控制工作站 */
    .station-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      align-items: center;
      gap: 48px;
    }
    .station-img-box {
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }
    .station-features {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-top: 24px;
    }
    .station-feat-item {
      padding-left: 20px;
      border-left: 3px solid var(--primary-accent);
    }
    .station-feat-item strong {
      display: block;
      font-size: 16px;
      color: var(--primary-dark);
      margin-bottom: 4px;
    }
    .station-feat-item span {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块八：实战场景深度矩阵 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .scenario-item {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .scenario-item img {
      height: 200px;
      width: 100%;
      object-fit: cover;
    }
    .scenario-body {
      padding: 24px;
    }
    .scenario-body h4 {
      font-size: 18px;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .scenario-body p {
      font-size: 13px;
      color: #A4B0BE;
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .scenario-meta {
      font-size: 12px;
      color: var(--warning-amber);
      font-weight: 700;
    }

    /* 板块九：国家检验标准与资质背书 */
    .standards-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .standard-badge-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 24px 20px;
      border-radius: var(--radius-sm);
      text-align: center;
    }
    .std-num {
      display: inline-block;
      font-size: 12px;
      font-weight: 800;
      color: var(--primary-accent);
      background: rgba(214, 48, 49, 0.08);
      padding: 4px 8px;
      border-radius: 2px;
      margin-bottom: 12px;
    }
    .standard-badge-card h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }
    .standard-badge-card p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块十：战备单位口碑评估与反馈 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 28px;
      border-radius: var(--radius-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-quote {
      font-size: 14px;
      color: #2F3542;
      line-height: 1.7;
      margin-bottom: 20px;
      position: relative;
    }
    .review-author-meta {
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .author-org {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary-dark);
    }
    .author-role {
      font-size: 12px;
      color: var(--text-muted);
    }
    .rating-badge {
      color: #E67E22;
      font-size: 13px;
      font-weight: 700;
    }

    /* 板块十一：快速解答与FAQ手风琴 */
    .faq-accordion-group {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    details.faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: border-color 0.25s ease;
    }
    details.faq-item[open] {
      border-color: var(--primary-accent);
      box-shadow: 0 4px 12px rgba(214, 48, 49, 0.08);
    }
    summary.faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
      user-select: none;
    }
    summary.faq-question::-webkit-details-marker {
      display: none;
    }
    summary.faq-question::after {
      content: '+';
      font-size: 20px;
      color: var(--primary-accent);
      font-weight: 400;
      transition: transform 0.2s ease;
    }
    details[open] summary.faq-question::after {
      content: '−';
    }
    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块十二：收口转化表单与战备需求对接 */
    .convert-block-card {
      background: #1E272E;
      color: #FFFFFF;
      border-radius: var(--radius-sm);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1fr;
      border: 1px solid var(--border-dark);
    }
    .convert-info-side {
      padding: 48px;
      background: linear-gradient(135deg, rgba(214, 48, 49, 0.15) 0%, rgba(30, 39, 46, 0.95) 100%);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .convert-info-side h3 {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 16px;
      color: #FFFFFF;
    }
    .convert-info-side p {
      font-size: 15px;
      color: #CED6E0;
      line-height: 1.7;
      margin-bottom: 30px;
    }
    .service-guarantees-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .service-guarantees-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #F1F2F6;
    }
    .service-guarantees-list li span {
      width: 8px;
      height: 8px;
      background: var(--primary-accent);
      border-radius: 50%;
    }

    .convert-form-side {
      padding: 48px;
      background: #FFFFFF;
      color: var(--text-main);
    }
    .form-group-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 16px;
    }
    .form-field {
      margin-bottom: 16px;
    }
    .form-field label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--primary-dark);
    }
    .form-field input, .form-field select, .form-field textarea {
      width: 100%;
      padding: 11px 14px;
      font-size: 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      background: #F8F9FA;
      transition: all 0.25s ease;
    }
    .form-field input:focus, .form-field select:focus, .form-field textarea:focus {
      border-color: var(--primary-accent);
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(214, 48, 49, 0.15);
    }
    .form-field textarea {
      resize: vertical;
      min-height: 85px;
    }

    /* 工业级统一页脚 */
    .site-footer {
      background-color: #0F1419;
      color: #747D8C;
      font-size: 14px;
      padding-top: 72px;
      border-top: 1px solid var(--border-dark);
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      padding-bottom: 56px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 20px;
      font-size: 13px;
      color: #A4B0BE;
    }
    .footer-nav-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
    }
    .footer-nav-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-nav-col a {
      color: #A4B0BE;
      font-size: 13px;
    }
    .footer-nav-col a:hover {
      color: var(--primary-accent);
    }
    .footer-contact-info {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 13px;
      color: #A4B0BE;
    }
    .footer-contact-info strong {
      color: #FFFFFF;
    }

    .footer-bottom {
      padding: 24px 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #57606F;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-stage-layout {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .wing-right {
        text-align: left;
      }
      .stage-wing {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }
      .metrics-bar-band {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-cell:nth-child(2) {
        border-right: none;
      }
      .metric-cell:nth-child(1), .metric-cell:nth-child(2) {
        border-bottom: 1px solid var(--border-color);
      }
      .matrix-grid, .news-cards-row, .scenario-grid, .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .category-showcase, .standards-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-info-bar {
        display: none;
      }
      .menu-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px 24px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
        gap: 16px;
      }
      .nav-links.active {
        display: flex;
      }
      .hero-title-box h1 {
        font-size: 30px;
      }
      .stage-wing {
        grid-template-columns: 1fr;
      }
      .compare-container, .station-grid, .convert-block-card {
        grid-template-columns: 1fr;
      }
      .convert-info-side, .convert-form-side {
        padding: 32px 20px;
      }
      .matrix-grid, .news-cards-row, .scenario-grid, .review-grid, .category-showcase, .standards-grid {
        grid-template-columns: 1fr;
      }
      .metrics-bar-band {
        grid-template-columns: 1fr;
      }
      .metric-cell {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .metric-cell:last-child {
        border-bottom: none;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
    }