/* roulang page: index */
:root {
      --bg-main: #0F1115;
      --bg-card: #161920;
      --bg-hover: #1D222D;
      --primary: #FF5E1E;
      --primary-hover: #e04e14;
      --secondary: #00E5FF;
      --text-white: #F4F6FB;
      --text-muted: #9EA5B4;
      --border-color: #2D3342;
      --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      --container-width: 1240px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-main);
      color: var(--text-muted);
    }

    body {
      font-family: var(--font-stack);
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    /* 容器 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部双行导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(15, 17, 21, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .top-bar {
      height: 36px;
      background-color: #0B0C0E;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      align-items: center;
    }

    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }

    .top-bar-info span {
      margin-right: 24px;
      color: #6C7282;
    }

    .top-bar-info strong {
      color: var(--text-white);
      font-weight: 500;
    }

    .main-nav {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .nav-brand {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-white);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-brand::before {
      content: "";
      display: inline-block;
      width: 12px;
      height: 12px;
      background-color: var(--primary);
      border-radius: 2px;
    }

    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
      align-items: center;
    }

    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }

    .nav-link:hover, .nav-link.active {
      color: var(--text-white);
    }

    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--primary);
      transition: var(--transition);
    }

    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.9375rem;
      font-weight: 600;
      border-radius: 4px;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      line-height: 1.2;
      text-align: center;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #fff;
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 4px 16px rgba(255, 94, 30, 0.35);
    }

    .btn-secondary {
      background-color: rgba(255, 255, 255, 0.05);
      border-color: var(--border-color);
      color: var(--text-white);
    }

    .btn-secondary:hover {
      background-color: var(--bg-hover);
      border-color: rgba(255, 255, 255, 0.2);
      transform: translateY(-2px);
    }

    /* 通用 Section 样式 */
    section {
      padding: 96px 0;
      position: relative;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }

    .section-alt {
      background-color: #12151B;
    }

    .section-darker {
      background-color: #0A0B0E;
    }

    .section-header {
      margin-bottom: 56px;
      max-width: 760px;
    }

    .section-tag {
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--secondary);
      letter-spacing: 1.5px;
      display: block;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      color: var(--text-white);
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 1.0625rem;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 1. Hero 区域 (Bento 架构) */
    .hero-section {
      padding: 64px 0 96px;
      background: linear-gradient(180deg, #13171F 0%, #0F1115 100%);
      position: relative;
      overflow: hidden;
    }

    .hero-bg-layer {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      opacity: 0.12;
      background-image: url('/assets/images/75c8bc8df53c53c0.webp');
      background-size: cover;
      background-position: center;
      pointer-events: none;
    }

    .hero-bento-grid {
      display: grid;
      grid-template-columns: 2fr 1.2fr;
      grid-template-rows: auto auto;
      gap: 24px;
      position: relative;
      z-index: 2;
    }

    .bento-main {
      grid-row: span 2;
      background-color: rgba(22, 25, 32, 0.85);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 48px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      backdrop-filter: blur(8px);
    }

    .bento-main h1 {
      font-size: clamp(2.25rem, 4vw, 3.5rem);
      font-weight: 800;
      color: var(--text-white);
      line-height: 1.15;
      margin-bottom: 24px;
      letter-spacing: -0.5px;
    }

    .bento-main p {
      font-size: 1.125rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 36px;
      max-width: 620px;
    }

    .bento-cta-group {
      display: flex;
      gap: 16px;
      align-items: center;
    }

    .bento-subcard {
      background-color: rgba(22, 25, 32, 0.85);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 32px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      backdrop-filter: blur(8px);
    }

    .bento-subcard h3 {
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--text-white);
      margin-bottom: 12px;
    }

    .bento-subcard p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .badge-label {
      align-self: flex-start;
      background: rgba(0, 229, 255, 0.1);
      color: var(--secondary);
      border: 1px solid rgba(0, 229, 255, 0.25);
      font-size: 0.75rem;
      padding: 4px 8px;
      border-radius: 3px;
      margin-bottom: 16px;
      font-weight: 600;
    }

    .bento-action-strip {
      grid-column: span 2;
      background: linear-gradient(90deg, #1A1F29 0%, #161920 100%);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 24px 36px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
    }

    .bento-action-strip .strip-text {
      color: var(--text-white);
      font-weight: 600;
      font-size: 1.0625rem;
    }

    /* 2. 技术研发底座 (#about) */
    .split-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }

    .console-card {
      background: #0B0C0E;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      overflow: hidden;
      box-shadow: 0 12px 36px rgba(0,0,0,0.5);
    }

    .console-header {
      background: #14171E;
      padding: 12px 20px;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .console-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #2D3342;
    }

    .console-dot:nth-child(1) { background: #FF5E1E; }
    .console-dot:nth-child(2) { background: #FFBD2E; }
    .console-dot:nth-child(3) { background: #27C93F; }

    .console-body {
      padding: 28px;
      font-family: monospace;
      font-size: 0.875rem;
      color: #9EA5B4;
      line-height: 1.8;
    }

    .console-body span.cyan { color: var(--secondary); }
    .console-body span.orange { color: var(--primary); }

    /* 3. 核心优势矩阵 (#advantages) 6卡 */
    .grid-3x2 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .matrix-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 32px;
      transition: var(--transition);
    }

    .matrix-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255, 94, 30, 0.4);
      box-shadow: 0 8px 28px rgba(0, 0, 0, 0.4);
    }

    .matrix-card-num {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 16px;
      font-family: monospace;
    }

    .matrix-card h3 {
      font-size: 1.25rem;
      color: var(--text-white);
      margin-bottom: 12px;
      font-weight: 600;
    }

    .matrix-card p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 4. 产品线展示 (#products) 3大卡 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .product-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .product-card:hover {
      transform: translateY(-4px);
      border-color: rgba(0, 229, 255, 0.3);
    }

    .product-media {
      height: 200px;
      overflow: hidden;
      position: relative;
    }

    .product-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .product-card:hover .product-media img {
      transform: scale(1.04);
    }

    .product-content {
      padding: 32px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .product-content h3 {
      font-size: 1.375rem;
      color: var(--text-white);
      margin-bottom: 14px;
      font-weight: 600;
    }

    .product-content p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 24px;
    }

    .product-spec {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 16px;
      font-size: 0.8125rem;
      color: var(--secondary);
      font-weight: 500;
    }

    /* 5. 实战案例与研习理念 (#cases) */
    .cases-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }

    .case-left {
      background: var(--bg-hover);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 44px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .case-left h3 {
      font-size: 1.75rem;
      color: var(--text-white);
      margin-bottom: 20px;
    }

    .case-left p {
      font-size: 1rem;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .case-right-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .case-stat-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 24px 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .case-stat-box h4 {
      font-size: 1.125rem;
      color: var(--text-white);
      margin-bottom: 6px;
    }

    .case-stat-box p {
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    .case-stat-num {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      text-align: right;
    }

    /* 6. 多维研发应用场景 (#scenarios) Z型排版 */
    .scenario-item {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 48px;
      align-items: center;
      margin-bottom: 64px;
    }

    .scenario-item:last-child {
      margin-bottom: 0;
    }

    .scenario-item.reversed {
      grid-template-columns: 1.2fr 1fr;
    }

    .scenario-item.reversed .scenario-visual {
      order: 1;
    }

    .scenario-item.reversed .scenario-content {
      order: 2;
    }

    .scenario-visual {
      border: 1px solid var(--border-color);
      border-radius: 6px;
      overflow: hidden;
      aspect-ratio: 16/9;
    }

    .scenario-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .scenario-content h3 {
      font-size: 1.625rem;
      color: var(--text-white);
      margin-bottom: 16px;
    }

    .scenario-content p {
      font-size: 1rem;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    /* 7. 数据实力横条 (#metrics) */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      background: #0B0C0E;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 48px 36px;
      text-align: center;
    }

    .metric-value {
      font-size: clamp(2.25rem, 3.5vw, 3.25rem);
      font-weight: 800;
      color: var(--text-white);
      line-height: 1;
      margin-bottom: 8px;
      font-family: monospace;
    }

    .metric-value span {
      font-size: 1.25rem;
      color: var(--primary);
    }

    .metric-label {
      font-size: 0.9375rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 8. 厂商故事沉浸区 (#stories) */
    .story-card-large {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 48px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .story-body blockquote {
      font-size: 1.25rem;
      line-height: 1.8;
      color: var(--text-white);
      margin-bottom: 24px;
      font-style: normal;
    }

    .story-author {
      font-size: 0.9375rem;
      color: var(--secondary);
      font-weight: 600;
    }

    .story-author span {
      display: block;
      color: var(--text-muted);
      font-size: 0.8125rem;
      font-weight: 400;
      margin-top: 4px;
    }

    .story-meta-box {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: 4px;
      padding: 28px;
    }

    .story-meta-box ul {
      list-style: none;
    }

    .story-meta-box li {
      margin-bottom: 12px;
      font-size: 0.875rem;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
      border-bottom: 1px dashed rgba(255,255,255,0.06);
      padding-bottom: 10px;
    }

    .story-meta-box li:last-child {
      margin-bottom: 0;
      border-bottom: none;
      padding-bottom: 0;
    }

    .story-meta-box li strong {
      color: var(--text-white);
    }

    /* 9. 生产标准硬核对比 (#comparison) */
    .comparison-table-wrapper {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      overflow: hidden;
    }

    .comp-row {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1.2fr;
      padding: 24px 32px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      align-items: center;
    }

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

    .comp-head {
      background: #11141A;
      font-weight: 700;
      color: var(--text-white);
      font-size: 1rem;
    }

    .comp-title {
      font-weight: 600;
      color: var(--text-white);
    }

    .comp-bad {
      color: #6C7282;
      font-size: 0.9375rem;
    }

    .comp-good {
      color: var(--secondary);
      font-weight: 600;
      font-size: 0.9375rem;
    }

    /* 10. 口碑与评价墙 (#reviews) */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 32px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: var(--primary);
      margin-bottom: 16px;
      letter-spacing: 2px;
    }

    .review-quote {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
      flex-grow: 1;
    }

    .review-client {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-white);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 16px;
    }

    .review-client span {
      display: block;
      font-size: 0.75rem;
      color: #6C7282;
      font-weight: 400;
      margin-top: 2px;
    }

    /* 11. 研发内参摘要区 (#news) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 32px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .news-card:hover {
      border-color: rgba(255, 255, 255, 0.2);
    }

    .news-date {
      font-size: 0.8125rem;
      color: #6C7282;
      margin-bottom: 12px;
      font-family: monospace;
    }

    .news-card h3 {
      font-size: 1.1875rem;
      color: var(--text-white);
      line-height: 1.4;
      margin-bottom: 14px;
    }

    .news-card p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .news-link {
      font-size: 0.875rem;
      color: var(--secondary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .news-link:hover {
      color: #fff;
    }

    /* 12. 合作疑虑拆解 FAQ (#faq) */
    .faq-container {
      max-width: 840px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item.active {
      border-color: rgba(255, 94, 30, 0.4);
    }

    .faq-question {
      padding: 24px 28px;
      font-size: 1.0625rem;
      font-weight: 600;
      color: var(--text-white);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-icon {
      font-size: 1.25rem;
      color: var(--primary);
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
      background: rgba(15, 17, 21, 0.4);
    }

    .faq-answer-inner {
      padding: 0 28px 24px;
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.8;
      border-top: 1px dashed rgba(255, 255, 255, 0.05);
      padding-top: 16px;
    }

    /* 13. 服务保障与终极转化行动区 (#cta) */
    .badges-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }

    .guarantee-badge {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 24px;
      text-align: center;
    }

    .guarantee-badge h4 {
      font-size: 1.0625rem;
      color: var(--text-white);
      margin-bottom: 8px;
    }

    .guarantee-badge p {
      font-size: 0.8125rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .final-cta-card {
      background: linear-gradient(135deg, #181C25 0%, #12141A 100%);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 48px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .final-cta-info h3 {
      font-size: 2rem;
      color: var(--text-white);
      line-height: 1.3;
      margin-bottom: 18px;
    }

    .final-cta-info p {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .contact-direct {
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.875rem;
      color: #7E8594;
    }

    .contact-direct strong {
      color: var(--secondary);
    }

    .cta-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      background: #0B0C0E;
      border: 1px solid var(--border-color);
      color: var(--text-white);
      padding: 14px 16px;
      border-radius: 4px;
      font-size: 0.9375rem;
      font-family: var(--font-stack);
      outline: none;
      transition: var(--transition);
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 1px var(--primary);
    }

    .form-group textarea {
      height: 90px;
      resize: vertical;
    }

    /* 底部固定浮动转化条 */
    .floating-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 60px;
      background: rgba(11, 12, 14, 0.95);
      backdrop-filter: blur(8px);
      border-top: 1px solid var(--border-color);
      z-index: 999;
      display: flex;
      align-items: center;
      transform: translateY(100%);
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .floating-bar.active {
      transform: translateY(0);
    }

    .floating-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }

    .floating-text {
      font-size: 0.9375rem;
      color: var(--text-white);
      font-weight: 500;
    }

    .floating-text span {
      color: var(--primary);
      margin-right: 8px;
    }

    /* 全局页脚 */
    .site-footer {
      background: #090A0D;
      border-top: 1px solid var(--border-color);
      padding: 64px 0 32px;
      font-size: 0.875rem;
      color: #6C7282;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand h4 {
      font-size: 1.25rem;
      color: var(--text-white);
      margin-bottom: 16px;
      font-weight: 700;
    }

    .footer-brand p {
      line-height: 1.8;
      max-width: 380px;
    }

    .footer-col h5 {
      font-size: 0.9375rem;
      color: var(--text-white);
      margin-bottom: 20px;
      font-weight: 600;
    }

    .footer-col ul {
      list-style: none;
    }

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

    .footer-col a:hover {
      color: var(--secondary);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.8125rem;
    }

    .footer-links a {
      margin-left: 20px;
    }

    /* 移动端菜单按钮与抽屉 */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--text-white);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-bento-grid {
        grid-template-columns: 1fr;
      }
      .bento-action-strip {
        grid-column: span 1;
      }
      .grid-3x2, .grid-3, .review-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .badges-row {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .main-nav {
        height: 64px;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        width: 100%;
        background: #0F1115;
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        align-items: flex-start;
        padding: 24px 20px;
        gap: 18px;
        display: none;
      }
      .nav-menu.open {
        display: flex;
      }
      .nav-cta {
        display: none;
      }
      .split-layout, .cases-container, .story-card-large, .final-cta-card {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .scenario-item, .scenario-item.reversed {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .scenario-item.reversed .scenario-visual {
        order: 2;
      }
      .scenario-item.reversed .scenario-content {
        order: 1;
      }
      .grid-3x2, .grid-3, .review-grid, .news-grid, .metrics-bar {
        grid-template-columns: 1fr;
      }
      .comp-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }
      .badges-row {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .floating-text {
        font-size: 0.8125rem;
      }
      section {
        padding: 64px 0;
      }
      .bento-main {
        padding: 32px 24px;
      }
    }