/* roulang page: index */
:root {
      --primary: #00E599;
      --primary-hover: #00c784;
      --primary-glow: rgba(0, 229, 153, 0.25);
      --secondary: #0D1117;
      --secondary-card: #161B22;
      --secondary-card-light: #21262D;
      --accent: #FF5500;
      --accent-hover: #e04b00;
      --bg-light: #F6F8FA;
      --bg-white: #FFFFFF;
      --text-main: #1F2328;
      --text-muted: #656D76;
      --text-light: #E6EDF3;
      --text-dim: #8B949E;
      --border-light: #E1E4E8;
      --border-dark: rgba(255, 255, 255, 0.12);
      --radius-sm: 4px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-pill: 9999px;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
      --shadow-md: 0 6px 20px rgba(0,0,0,0.08);
      --shadow-glow: 0 10px 30px rgba(0, 229, 153, 0.2);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      --max-w: 1240px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      line-height: 1.6;
      color: var(--text-main);
      background-color: var(--bg-white);
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    .container {
      width: 100%;
      max-width: var(--max-w);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部服务信息条 */
    .top-bar {
      background-color: var(--secondary);
      color: var(--text-dim);
      font-size: 0.82rem;
      border-bottom: 1px solid var(--border-dark);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .top-bar-item span.live-dot {
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 6px var(--primary);
    }

    /* 主导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      transition: var(--transition);
    }
    .nav-inner {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--secondary);
      letter-spacing: -0.5px;
    }
    .brand-badge {
      background: var(--secondary);
      color: var(--primary);
      font-size: 0.75rem;
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      border: 1px solid rgba(0, 229, 153, 0.4);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-weight: 600;
      font-size: 0.95rem;
      color: #333d47;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: var(--accent);
      color: #fff;
      font-size: 0.92rem;
      font-weight: 700;
      padding: 10px 22px;
      border-radius: var(--radius-pill);
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.3);
    }
    .nav-cta:hover {
      background-color: var(--accent-hover);
      transform: translateY(-1px);
    }

    /* 按钮通用 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 13px 28px;
      border-radius: var(--radius-md);
      font-weight: 700;
      font-size: 1rem;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
    }
    .btn-primary {
      background: var(--primary);
      color: var(--secondary);
      box-shadow: 0 4px 18px var(--primary-glow);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: var(--shadow-glow);
    }
    .btn-accent {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 4px 16px rgba(255, 85, 0, 0.3);
    }
    .btn-accent:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
    }
    .btn-outline-dark {
      background: transparent;
      color: var(--text-light);
      border-color: rgba(255, 255, 255, 0.3);
    }
    .btn-outline-dark:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: #fff;
    }

    /* 通用板块排版 */
    .section {
      padding: 96px 0;
      position: relative;
    }
    .section-light {
      background-color: var(--bg-light);
    }
    .section-white {
      background-color: var(--bg-white);
    }
    .section-dark {
      background-color: var(--secondary);
      color: var(--text-light);
    }
    .section-header {
      margin-bottom: 56px;
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-header.text-left {
      text-align: left;
      margin-left: 0;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 14px;
    }
    .section-tag.tag-primary {
      background: rgba(0, 229, 153, 0.15);
      color: #009e66;
    }
    .section-tag.tag-dark-mode {
      background: rgba(0, 229, 153, 0.15);
      color: var(--primary);
      border: 1px solid rgba(0, 229, 153, 0.3);
    }
    .section-title {
      font-size: 2.35rem;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.8px;
      margin-bottom: 18px;
    }
    .section-desc {
      font-size: 1.05rem;
      line-height: 1.75;
      color: var(--text-muted);
    }
    .section-dark .section-desc {
      color: var(--text-dim);
    }

    /* 板块1：Hero 首屏强转化 */
    .hero-section {
      position: relative;
      background: radial-gradient(circle at 80% 20%, #1c2530 0%, #0d1117 70%);
      color: #fff;
      padding: 80px 0 110px;
      overflow: hidden;
    }
    .hero-section::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: url('/assets/images/44d235780c88f44c.png');
      background-size: cover;
      background-position: center;
      opacity: 0.18;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-badge-wrap {
      display: flex;
      gap: 12px;
      align-items: center;
      margin-bottom: 22px;
      flex-wrap: wrap;
    }
    .hero-flash-pill {
      background: var(--accent);
      color: #fff;
      font-weight: 800;
      font-size: 0.82rem;
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      box-shadow: 0 0 12px rgba(255, 85, 0, 0.5);
    }
    .hero-subpill {
      color: var(--primary);
      font-size: 0.88rem;
      letter-spacing: 0.5px;
      font-weight: 600;
    }
    .hero-title {
      font-size: 3.1rem;
      font-weight: 900;
      line-height: 1.18;
      letter-spacing: -1px;
      margin-bottom: 24px;
      color: #ffffff;
    }
    .hero-title span.hl {
      color: var(--primary);
      position: relative;
    }
    .hero-intro {
      font-size: 1.1rem;
      line-height: 1.8;
      color: #C9D1D9;
      margin-bottom: 34px;
      max-width: 620px;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      align-items: center;
      margin-bottom: 38px;
      flex-wrap: wrap;
    }
    .hero-feature-tags {
      display: flex;
      gap: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding-top: 24px;
    }
    .h-tag-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.88rem;
      color: #8B949E;
    }
    .h-tag-item strong {
      color: #fff;
      font-size: 1.05rem;
    }
    .hero-visual-card {
      background: rgba(22, 27, 34, 0.8);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 20px 50px rgba(0,0,0,0.5);
      position: relative;
    }
    .hero-visual-card img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      border-radius: var(--radius-md);
      margin-bottom: 18px;
    }
    .hero-device-stat {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      background: rgba(13, 17, 23, 0.9);
      padding: 14px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255,255,255,0.06);
    }
    .stat-mini-box {
      text-align: center;
    }
    .stat-mini-val {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
    }
    .stat-mini-lbl {
      font-size: 0.75rem;
      color: #8b949e;
    }

    /* 板块2：多品类产品与研发认证矩阵 */
    .cert-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .cert-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .cert-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .cert-icon-chip {
      font-size: 0.8rem;
      font-weight: 800;
      color: #009e66;
      background: rgba(0, 229, 153, 0.12);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      display: inline-block;
      margin-bottom: 14px;
    }
    .cert-name {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .cert-detail {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块3：核心研发优势六宫格 */
    .tech-grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .tech-card-item {
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      transition: var(--transition);
    }
    .tech-card-item:hover {
      background: #fff;
      border-color: var(--primary);
      box-shadow: var(--shadow-glow);
      transform: translateY(-4px);
    }
    .tech-card-index {
      font-size: 1.8rem;
      font-weight: 900;
      color: rgba(0, 229, 153, 0.4);
      margin-bottom: 12px;
      line-height: 1;
    }
    .tech-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .tech-card-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块4：热门体育智能硬件终端展厅 */
    .product-show-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .product-box {
      background: #fff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .product-box:hover {
      border-color: var(--primary);
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.1);
      transform: translateY(-5px);
    }
    .product-img-wrap {
      position: relative;
      height: 240px;
      background: #0d1117;
      overflow: hidden;
    }
    .product-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .product-box:hover .product-img-wrap img {
      transform: scale(1.05);
    }
    .product-chip {
      position: absolute;
      top: 14px;
      right: 14px;
      background: rgba(13, 17, 23, 0.85);
      border: 1px solid rgba(0, 229, 153, 0.4);
      color: var(--primary);
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: var(--radius-pill);
      font-weight: 700;
    }
    .product-content {
      padding: 26px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .product-name {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .product-spec-list {
      list-style: none;
      margin: 14px 0 20px;
      border-top: 1px dashed var(--border-light);
      padding-top: 14px;
    }
    .product-spec-list li {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 8px;
      display: flex;
      justify-content: space-between;
    }
    .product-spec-list li span.val {
      font-weight: 600;
      color: var(--secondary);
    }
    .product-action-btn {
      margin-top: auto;
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      color: var(--secondary);
      font-weight: 700;
      padding: 10px;
      text-align: center;
      border-radius: var(--radius-md);
      transition: var(--transition);
    }
    .product-box:hover .product-action-btn {
      background: var(--accent);
      border-color: var(--accent);
      color: #fff;
    }

    /* 板块5：全链路物联协同与技术架构 */
    .arch-flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .arch-step-card {
      background: var(--secondary-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
    }
    .arch-step-header {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      margin-bottom: 16px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      padding-bottom: 12px;
    }
    .arch-step-num {
      color: var(--primary);
      font-size: 1.25rem;
      font-weight: 900;
    }
    .arch-step-label {
      font-size: 0.8rem;
      color: var(--text-dim);
      text-transform: uppercase;
    }
    .arch-step-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }
    .arch-step-desc {
      font-size: 0.9rem;
      color: var(--text-dim);
      line-height: 1.6;
    }

    /* 板块6：垂直运动场景落地演示 */
    .scene-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .scene-item {
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .scene-img-holder {
      height: 220px;
      overflow: hidden;
    }
    .scene-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .scene-item:hover .scene-img-holder img {
      transform: scale(1.06);
    }
    .scene-body {
      padding: 26px;
    }
    .scene-title {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .scene-text {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .scene-metric-pill {
      display: inline-block;
      background: rgba(0, 229, 153, 0.1);
      color: #008755;
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
    }

    /* 板块7：典型落地案例 */
    .case-container {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1fr;
      box-shadow: var(--shadow-md);
    }
    .case-left-media img {
      width: 100%;
      height: 100%;
      min-height: 380px;
      object-fit: cover;
    }
    .case-right-body {
      padding: 48px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .case-tag-line {
      color: var(--accent);
      font-size: 0.85rem;
      font-weight: 800;
      margin-bottom: 10px;
      letter-spacing: 0.5px;
    }
    .case-main-title {
      font-size: 1.75rem;
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 20px;
    }
    .case-summary {
      font-size: 0.98rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .case-data-blocks {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      border-top: 1px solid var(--border-light);
      padding-top: 20px;
    }
    .c-data-val {
      font-size: 1.45rem;
      font-weight: 900;
      color: var(--secondary);
    }
    .c-data-sub {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* 板块8：核心性能与技术指标统计条 */
    .data-bar-strip {
      background: #090D13;
      border-top: 1px solid rgba(0, 229, 153, 0.2);
      border-bottom: 1px solid rgba(0, 229, 153, 0.2);
      padding: 48px 0;
      color: #fff;
    }
    .data-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .d-box-num {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
      font-family: monospace, sans-serif;
    }
    .d-box-title {
      font-size: 1rem;
      font-weight: 700;
      color: #F0F6FC;
      margin-bottom: 4px;
    }
    .d-box-note {
      font-size: 0.8rem;
      color: #8B949E;
    }

    /* 板块9：行业专家与教练员实测评价 */
    .quote-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .quote-box {
      background: #fff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }
    .quote-content {
      font-size: 0.95rem;
      line-height: 1.7;
      color: var(--text-main);
      margin-bottom: 24px;
      position: relative;
    }
    .quote-author-wrap {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-light);
      padding-top: 16px;
    }
    .quote-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--secondary);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
    }
    .quote-name {
      font-size: 1rem;
      font-weight: 800;
      color: var(--secondary);
    }
    .quote-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 板块10：前沿硬件动态与行业报告内嵌区 */
    .insight-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .insight-card {
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .insight-card:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
    }
    .insight-cover {
      height: 180px;
      overflow: hidden;
    }
    .insight-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .insight-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .insight-meta {
      font-size: 0.78rem;
      color: var(--accent);
      font-weight: 700;
      margin-bottom: 8px;
    }
    .insight-title {
      font-size: 1.12rem;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 10px;
    }
    .insight-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .insight-link {
      margin-top: auto;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--secondary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块11：硬件选型与部署常见疑问手风琴 */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item[open] {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 1.08rem;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
      color: var(--secondary);
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-arrow {
      font-size: 1.2rem;
      color: var(--text-muted);
      transition: transform 0.25s ease;
    }
    .faq-item[open] .faq-arrow {
      transform: rotate(180deg);
      color: var(--accent);
    }
    .faq-content {
      padding: 0 24px 22px;
      font-size: 0.95rem;
      line-height: 1.7;
      color: var(--text-muted);
      border-top: 1px solid rgba(0, 0, 0, 0.04);
      margin-top: -6px;
      padding-top: 14px;
    }

    /* 板块12：底部闭环转化与交付保障区 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 50px;
    }
    .guarantee-box {
      background: var(--secondary-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 28px;
      text-align: center;
    }
    .g-badge {
      display: inline-block;
      font-size: 1.5rem;
      margin-bottom: 12px;
    }
    .g-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 8px;
    }
    .g-desc {
      font-size: 0.88rem;
      color: var(--text-dim);
      line-height: 1.6;
    }
    .final-form-box {
      background: linear-gradient(135deg, #161B22 0%, #0D1117 100%);
      border: 1px solid rgba(0, 229, 153, 0.3);
      border-radius: var(--radius-lg);
      padding: 48px;
      max-width: 820px;
      margin: 0 auto;
      text-align: center;
      box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    }
    .final-title {
      font-size: 2rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }
    .final-desc {
      font-size: 0.96rem;
      color: #8B949E;
      margin-bottom: 32px;
    }
    .consult-form {
      display: flex;
      gap: 12px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .form-input {
      background: #090D13;
      border: 1px solid rgba(255, 255, 255, 0.18);
      color: #fff;
      padding: 14px 20px;
      border-radius: var(--radius-md);
      font-size: 0.95rem;
      min-width: 280px;
      outline: none;
    }
    .form-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 10px var(--primary-glow);
    }

    /* 底部固定转化条 */
    .sticky-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(13, 17, 23, 0.96);
      backdrop-filter: blur(10px);
      border-top: 1px solid rgba(0, 229, 153, 0.4);
      z-index: 99;
      padding: 12px 0;
      box-shadow: 0 -4px 20px rgba(0,0,0,0.3);
      transform: translateY(0);
      transition: transform 0.3s ease;
    }
    .sticky-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }
    .sticky-info {
      color: #fff;
      font-size: 0.92rem;
    }
    .sticky-info strong {
      color: var(--primary);
    }
    .sticky-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    /* 页脚 */
    .site-footer {
      background-color: #06090e;
      color: #8B949E;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 72px 0 110px;
      font-size: 0.88rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 56px;
    }
    .f-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: #F0F6FC;
      margin-bottom: 20px;
      position: relative;
    }
    .f-links {
      list-style: none;
    }
    .f-links li {
      margin-bottom: 10px;
    }
    .f-links a:hover {
      color: var(--primary);
    }
    .f-contact-line {
      margin-bottom: 12px;
      line-height: 1.5;
    }
    .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;
    }

    /* 移动端菜单按钮与响应式 */
    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: 1px solid var(--border-light);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 1.1rem;
      color: var(--secondary);
    }

    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .hero-visual-card {
        max-width: 600px;
        margin: 0 auto;
      }
      .cert-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .tech-grid-6 {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-flow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 2.25rem;
      }
      .section-title {
        font-size: 1.85rem;
      }
      .product-show-grid,
      .scene-grid-3,
      .quote-grid-3,
      .insight-grid-3,
      .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .tech-grid-6,
      .cert-grid,
      .arch-flow-grid {
        grid-template-columns: 1fr;
      }
      .case-container {
        grid-template-columns: 1fr;
      }
      .case-right-body {
        padding: 28px;
      }
      .data-bar-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px 16px;
      }
      .sticky-inner {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
      }
      .sticky-actions {
        justify-content: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .consult-form {
        flex-direction: column;
      }
      .form-input {
        width: 100%;
        min-width: unset;
      }
    }