/* roulang page: index */
:root {
      --primary: #0F2027;
      --primary-dark: #070D10;
      --accent: #008080;
      --accent-hover: #006666;
      --highlight: #E65C00;
      --highlight-hover: #CC5200;
      --bg: #F8FAFB;
      --bg-white: #FFFFFF;
      --bg-dark: #0B1319;
      --text-main: #141E28;
      --text-body: #4A5568;
      --text-muted: #718096;
      --border-color: #E2E8F0;
      --border-dark: #1E293B;
      --radius: 6px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
      --shadow-hover: 0 10px 25px -5px rgba(0, 128, 128, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
      --font-stack: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-stack);
      background-color: var(--bg);
      color: var(--text-body);
      line-height: 1.78;
      letter-spacing: 0.01em;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

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

    button, input, select, textarea {
      font-family: inherit;
      font-size: 1rem;
    }

    .container {
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部信息状态条 */
    .top-status-bar {
      background: var(--primary);
      color: #94A3B8;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 6px 0;
    }
    .top-status-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .status-tags {
      display: flex;
      gap: 16px;
      align-items: center;
    }
    .status-tag-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-tag-item::before {
      content: "";
      width: 6px;
      height: 6px;
      background: var(--accent);
      border-radius: 50%;
    }

    /* 主导航 */
    .main-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-wrapper {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.02em;
    }
    .brand-logo span {
      color: var(--accent);
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
      align-items: center;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: width 0.25s ease;
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .nav-cta {
      background: var(--accent);
      color: #FFF !important;
      padding: 8px 18px;
      border-radius: var(--radius);
      font-size: 0.875rem;
      font-weight: 600;
      transition: background 0.2s ease, transform 0.15s ease;
    }
    .nav-cta:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
    }
    .menu-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--border-color);
      padding: 6px 10px;
      border-radius: var(--radius);
      cursor: pointer;
    }

    /* 按钮基础 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 26px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius);
      cursor: pointer;
      transition: all 0.2s ease;
      border: 1px solid transparent;
      text-align: center;
      min-height: 46px;
    }
    .btn-primary {
      background: var(--accent);
      color: #FFF;
      box-shadow: 0 4px 12px rgba(0, 128, 128, 0.2);
    }
    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
    }
    .btn-outline {
      background: transparent;
      border-color: #CBD5E1;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: rgba(0, 128, 128, 0.03);
    }
    .btn-highlight {
      background: var(--highlight);
      color: #FFF;
    }
    .btn-highlight:hover {
      background: var(--highlight-hover);
      transform: translateY(-2px);
    }

    /* 徽章与标签 */
    .badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      padding: 4px 10px;
      border-radius: 4px;
      letter-spacing: 0.05em;
    }
    .badge-primary {
      background: rgba(0, 128, 128, 0.1);
      color: var(--accent);
      border: 1px solid rgba(0, 128, 128, 0.2);
    }
    .badge-accent {
      background: rgba(230, 92, 0, 0.1);
      color: var(--highlight);
      border: 1px solid rgba(230, 92, 0, 0.25);
    }

    /* 通用板块与网格 */
    .section-block {
      padding: 88px 0;
      position: relative;
    }
    .section-block.bg-light {
      background-color: var(--bg-white);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-block.bg-dark {
      background-color: var(--bg-dark);
      color: #CBD5E1;
    }
    .section-header {
      margin-bottom: 52px;
      max-width: 820px;
    }
    .section-header.text-center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-top: 10px;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-block.bg-dark .section-title {
      color: #FFF;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .section-block.bg-dark .section-desc {
      color: #94A3B8;
    }

    /* 板块一：新品发布 Hero 区 */
    .hero-section {
      background-color: var(--primary);
      background-image: linear-gradient(135deg, rgba(15, 32, 39, 0.95), rgba(7, 13, 16, 0.92)), url('/assets/images/cce952721e41bdc2.webp');
      background-size: cover;
      background-position: center;
      color: #FFF;
      padding: 100px 0 90px;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 2.75rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.25;
      margin-top: 14px;
      margin-bottom: 20px;
      color: #FFF;
    }
    .hero-lead {
      font-size: 1.05rem;
      color: #CBD5E1;
      line-height: 1.85;
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-ring-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(12px);
      border-radius: var(--radius);
      padding: 32px;
      text-align: center;
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    }
    .ring-circle {
      width: 140px;
      height: 140px;
      margin: 0 auto 20px;
      border-radius: 50%;
      border: 8px solid rgba(0, 128, 128, 0.25);
      border-top-color: var(--accent);
      border-right-color: var(--highlight);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      animation: spinBorder 12s linear infinite;
    }
    @keyframes spinBorder {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }
    .ring-inner-text {
      transform: rotate(0deg);
      text-align: center;
    }
    .ring-val {
      font-size: 1.8rem;
      font-weight: 800;
      color: #FFF;
      line-height: 1;
    }
    .ring-lbl {
      font-size: 0.75rem;
      color: #94A3B8;
      margin-top: 4px;
    }
    .hero-counter-desc {
      font-size: 0.95rem;
      color: #E2E8F0;
      margin-bottom: 16px;
      font-weight: 500;
    }

    /* 板块二：卖点三连 */
    .trio-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .trio-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
      position: relative;
    }
    .trio-card:hover {
      transform: translateY(-4px);
      border-color: var(--accent);
      box-shadow: var(--shadow-hover);
    }
    .trio-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: rgba(0, 128, 128, 0.2);
      line-height: 1;
      margin-bottom: 14px;
    }
    .trio-card h3 {
      font-size: 1.25rem;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .trio-card p {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 板块三：入口矩阵 */
    .portal-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .portal-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 190px;
      transition: all 0.2s ease;
    }
    .portal-item:hover {
      border-color: var(--accent);
      background: #F0FDFA;
      transform: translateY(-3px);
    }
    .portal-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
    }
    .portal-icon {
      width: 38px;
      height: 38px;
      background: rgba(0, 128, 128, 0.1);
      color: var(--accent);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }
    .portal-item h3 {
      font-size: 1.1rem;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .portal-item p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .portal-link-text {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--accent);
      margin-top: 14px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块四：最新发布产品矩阵 */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .product-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
    }
    .product-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent);
    }
    .product-img-box {
      height: 200px;
      overflow: hidden;
      background: #000;
    }
    .product-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .product-card:hover .product-img-box img {
      transform: scale(1.05);
    }
    .product-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .product-body h3 {
      font-size: 1.25rem;
      color: var(--text-main);
      margin-top: 8px;
      margin-bottom: 10px;
    }
    .product-body p {
      font-size: 0.9rem;
      color: var(--text-body);
      margin-bottom: 16px;
      flex: 1;
    }
    .feature-specs {
      list-style: none;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      margin-bottom: 18px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .feature-specs li strong {
      color: var(--text-main);
    }

    /* 板块五：深色底高对比架构与技术理念区 */
    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .arch-layers {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .arch-layer-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 18px 24px;
      border-radius: var(--radius);
      display: flex;
      align-items: center;
      gap: 20px;
      transition: all 0.2s ease;
    }
    .arch-layer-card:hover {
      background: rgba(0, 128, 128, 0.15);
      border-color: var(--accent);
      transform: translateX(6px);
    }
    .layer-index {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--accent);
      min-width: 44px;
    }
    .layer-content h4 {
      font-size: 1.05rem;
      color: #FFF;
      margin-bottom: 4px;
    }
    .layer-content p {
      font-size: 0.85rem;
      color: #94A3B8;
      margin: 0;
    }
    .code-box {
      background: #060A0D;
      border: 1px solid #1E293B;
      border-radius: var(--radius);
      padding: 24px;
      font-family: Consolas, Monaco, "Courier New", monospace;
      font-size: 0.85rem;
      color: #38BDF8;
      line-height: 1.6;
      overflow-x: auto;
    }
    .code-comment { color: #64748B; }
    .code-keyword { color: #F43F5E; }
    .code-fn { color: #FBBF24; }

    /* 板块六：热门专题分类 */
    .topics-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 32px;
    }
    .topic-pill {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 10px 22px;
      border-radius: 30px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      transition: all 0.2s ease;
    }
    .topic-pill:hover, .topic-pill.active {
      background: var(--accent);
      border-color: var(--accent);
      color: #FFF;
      transform: translateY(-2px);
    }
    .topic-card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .topic-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
    }
    .topic-card h3 {
      font-size: 1.15rem;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .topic-card p {
      font-size: 0.9rem;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* 板块七：资讯列表网格 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease, border-color 0.2s ease;
    }
    .news-card:hover {
      transform: translateY(-3px);
      border-color: var(--accent);
    }
    .news-meta {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      justify-content: space-between;
    }
    .news-card h3 {
      font-size: 1.1rem;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-card p {
      font-size: 0.88rem;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .news-hidden {
      display: none;
    }
    .news-actions-center {
      text-align: center;
      margin-top: 36px;
    }

    /* 板块八：数据指标条 */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: var(--primary);
      border-radius: var(--radius);
      padding: 44px 32px;
      color: #FFF;
      box-shadow: 0 12px 24px rgba(15, 32, 39, 0.15);
    }
    .metric-col {
      text-align: center;
      border-right: 1px solid rgba(255, 255, 255, 0.1);
      padding: 0 16px;
    }
    .metric-col:last-child {
      border-right: none;
    }
    .metric-number {
      font-size: 2.6rem;
      font-weight: 800;
      color: #FFF;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-number span {
      font-size: 1.3rem;
      color: var(--highlight);
      margin-left: 2px;
    }
    .metric-label {
      font-size: 0.9rem;
      color: #94A3B8;
      font-weight: 500;
    }

    /* 板块九：行业口碑气泡墙 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-bubble-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .testi-speech {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
      position: relative;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      background: var(--primary);
      color: #FFF;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }
    .author-info h4 {
      font-size: 0.95rem;
      color: var(--text-main);
    }
    .author-info p {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin: 0;
    }

    /* 板块十：典型落地场景故事 */
    .scenario-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      margin-bottom: 40px;
    }
    .scenario-grid.reverse {
      direction: rtl;
    }
    .scenario-grid.reverse .scenario-text {
      direction: ltr;
    }
    .scenario-grid.reverse .scenario-img {
      direction: ltr;
    }
    .scenario-img {
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      height: 320px;
    }
    .scenario-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .scenario-text h3 {
      font-size: 1.75rem;
      color: var(--text-main);
      margin-top: 10px;
      margin-bottom: 16px;
    }
    .scenario-text p {
      font-size: 1rem;
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .kpi-row {
      display: flex;
      gap: 24px;
      margin-top: 16px;
    }
    .kpi-box {
      border-left: 3px solid var(--accent);
      padding-left: 12px;
    }
    .kpi-val {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .kpi-txt {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 板块十一：合作伙伴生态墙 */
    .partner-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }
    .partner-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 18px 12px;
      text-align: center;
      font-size: 0.85rem;
      font-weight: 600;
      color: #64748B;
      transition: all 0.2s ease;
    }
    .partner-item:hover {
      border-color: var(--accent);
      color: var(--accent);
      box-shadow: var(--shadow-sm);
    }

    /* 板块十二：技术答疑 FAQ 手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .faq-item[open] {
      border-color: var(--accent);
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-summary::after {
      content: "+";
      font-size: 1.4rem;
      color: var(--accent);
      transition: transform 0.2s ease;
    }
    .faq-item[open] .faq-summary::after {
      transform: rotate(45deg);
    }
    .faq-content {
      padding: 0 24px 22px;
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.8;
      border-top: 1px solid transparent;
    }

    /* 板块十三：收口行动区与咨询表单 (整页唯一收口) */
    .cta-wrapper {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 48px;
      box-shadow: var(--shadow-md);
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
    }
    .cta-info h3 {
      font-size: 1.85rem;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .cta-info p {
      font-size: 1rem;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .cta-trust-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .cta-trust-points li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-main);
      font-weight: 500;
    }
    .cta-trust-points li::before {
      content: "✓";
      color: var(--accent);
      font-weight: 800;
    }
    .cta-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .form-control {
      padding: 11px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      outline: none;
      transition: border-color 0.2s ease;
      background: var(--bg);
    }
    .form-control:focus {
      border-color: var(--accent);
      background: #FFF;
    }

    /* 页脚 Footer */
    .main-footer {
      background: var(--primary);
      color: #94A3B8;
      padding: 72px 0 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      font-size: 1.05rem;
      color: #FFF;
      margin-bottom: 20px;
      font-weight: 700;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: #FFF;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.825rem;
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-grid, .cta-wrapper, .arch-grid, .scenario-grid, .scenario-grid.reverse {
        grid-template-columns: 1fr;
        direction: ltr !important;
      }
      .trio-grid, .product-grid, .topic-card-grid, .news-grid, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .portal-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
      }
      .metric-col {
        border-right: none;
      }
      .partner-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFF;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-menu.open {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
      .section-block {
        padding: 60px 0;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .hero-content h1 {
        font-size: 2rem;
      }
      .trio-grid, .product-grid, .topic-card-grid, .news-grid, .testimonials-grid, .portal-grid {
        grid-template-columns: 1fr;
      }
      .partner-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-wrapper {
        padding: 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }