/* roulang page: index */
:root {
      --primary: #0D7377;
      --primary-dark: #084C4E;
      --primary-light: #EBF8F7;
      --accent: #14FFEC;
      --accent-warm: #FF7E67;
      --accent-warm-hover: #E86A53;
      --bg-page: #F8FAFB;
      --bg-card: #FFFFFF;
      --bg-dark: #102A2E;
      --text-main: #1A2F35;
      --text-body: #4A5568;
      --text-muted: #8A9BA8;
      --border-color: #E2E8F0;
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --shadow-sm: 0 2px 8px rgba(13, 115, 119, 0.05);
      --shadow-md: 0 4px 20px rgba(13, 115, 119, 0.08);
      --shadow-lg: 0 10px 30px rgba(13, 115, 119, 0.12);
      --container-width: 1240px;
      --transition: all 0.28s ease-in-out;
    }

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

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

    body {
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-body);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    ul, ol {
      list-style: none;
    }

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

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

    /* 顶部系统条与导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 12px rgba(16, 42, 46, 0.06);
      transition: var(--transition);
    }

    .header-topbar {
      background-color: var(--primary-dark);
      color: #E0ECEE;
      font-size: 0.84rem;
      padding: 6px 0;
    }

    .header-topbar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .topbar-info {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .topbar-badge {
      background: rgba(20, 255, 236, 0.18);
      color: var(--accent);
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      font-weight: 500;
      font-size: 0.78rem;
    }

    .nav-bar {
      padding: 16px 0;
    }

    .nav-bar .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .nav-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.45rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.02em;
    }

    .brand-icon {
      width: 36px;
      height: 36px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }

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

    .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%;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      text-align: center;
      min-height: 44px;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(13, 115, 119, 0.25);
    }

    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(13, 115, 119, 0.35);
    }

    .btn-warm {
      background-color: var(--accent-warm);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(255, 126, 103, 0.25);
    }

    .btn-warm:hover {
      background-color: var(--accent-warm-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(255, 126, 103, 0.35);
    }

    .btn-outline {
      background-color: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background-color: var(--primary-light);
      transform: translateY(-2px);
    }

    .btn-white-outline {
      border-color: rgba(255, 255, 255, 0.4);
      color: #FFFFFF;
      background: rgba(255, 255, 255, 0.08);
    }

    .btn-white-outline:hover {
      background-color: #FFFFFF;
      color: var(--bg-dark);
      border-color: #FFFFFF;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary-dark);
      cursor: pointer;
      padding: 8px;
    }

    /* Section 通用规范 */
    .section {
      padding: 90px 0;
      position: relative;
    }

    .section-alt {
      background-color: #FFFFFF;
    }

    .section-dark {
      background-color: var(--bg-dark);
      color: #D2E0E4;
    }

    .section-header {
      margin-bottom: 54px;
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }

    .section-header-left {
      text-align: left;
      margin-left: 0;
      margin-right: 0;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
      background-color: var(--primary-light);
      padding: 4px 14px;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      letter-spacing: 0.02em;
    }

    .section-dark .section-tag {
      background-color: rgba(20, 255, 236, 0.12);
      color: var(--accent);
    }

    .section-title {
      font-size: 2.15rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }

    .section-dark .section-title {
      color: #FFFFFF;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-body);
      line-height: 1.8;
    }

    .section-dark .section-desc {
      color: #9FB2B6;
    }

    /* [Section 01] Hero 板块 */
    .hero-section {
      padding: 80px 0 100px;
      background: linear-gradient(135deg, #F0F6F7 0%, #FFFFFF 100%);
      position: relative;
      overflow: hidden;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 48px;
      align-items: center;
    }

    .hero-content {
      z-index: 2;
    }

    .hero-h1 {
      font-size: 2.7rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.22;
      letter-spacing: -0.025em;
      margin-bottom: 20px;
    }

    .hero-h1 span {
      color: var(--primary);
      position: relative;
    }

    .hero-lead {
      font-size: 1.08rem;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 32px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-kpis {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
    }

    .hero-kpi-item h4 {
      font-size: 1.65rem;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 4px;
    }

    .hero-kpi-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .hero-visual {
      position: relative;
    }

    .hero-image-wrap {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .hero-image-wrap img {
      width: 100%;
      height: 480px;
      object-fit: cover;
      transform: scale(1.02);
      transition: transform 0.6s ease;
    }

    .hero-image-wrap:hover img {
      transform: scale(1.05);
    }

    .hero-float-card {
      position: absolute;
      bottom: 24px;
      left: 24px;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      gap: 14px;
      max-width: 290px;
      border: 1px solid rgba(13, 115, 119, 0.15);
    }

    .hero-float-card .icon-box {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background-color: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
    }

    /* [Section 02] 痛点诊断区 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .pain-card {
      background-color: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
    }

    .pain-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }

    .pain-badge {
      width: 38px;
      height: 38px;
      border-radius: var(--radius-sm);
      background-color: #FFF2F0;
      color: var(--accent-warm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .pain-card h3 {
      font-size: 1.2rem;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .pain-card p {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* [Section 03] 品牌与产品体系综述 */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .overview-img-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .overview-img-box img {
      width: 100%;
      height: 440px;
      object-fit: cover;
    }

    .tech-specs-chip {
      margin-top: 24px;
      background-color: var(--primary-light);
      border-left: 4px solid var(--primary);
      padding: 16px 20px;
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
    }

    .tech-specs-chip h4 {
      font-size: 1rem;
      color: var(--primary-dark);
      margin-bottom: 6px;
      font-weight: 700;
    }

    .tech-specs-chip p {
      font-size: 0.9rem;
      color: var(--primary-dark);
      line-height: 1.6;
    }

    /* [Section 04] 核心技术优势矩阵 */
    .tech-matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .tech-card {
      background-color: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .tech-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }

    .tech-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background-color: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      margin-bottom: 20px;
      font-weight: 700;
    }

    .tech-card h3 {
      font-size: 1.25rem;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .tech-card p {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* [Section 05] 旗舰热门康复机器人专区 */
    .product-list {
      display: flex;
      flex-direction: column;
      gap: 32px;
    }

    .product-item {
      display: grid;
      grid-template-columns: 4.5fr 7.5fr;
      background-color: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .product-item:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }

    .product-item-img {
      height: 100%;
      min-height: 280px;
    }

    .product-item-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .product-item-content {
      padding: 36px 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .product-tag {
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 8px;
    }

    .product-item-content h3 {
      font-size: 1.55rem;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .product-item-content p {
      font-size: 0.96rem;
      color: var(--text-body);
      margin-bottom: 20px;
      line-height: 1.7;
    }

    .product-specs {
      display: flex;
      flex-wrap: wrap;
      gap: 16px 24px;
      margin-bottom: 24px;
      font-size: 0.88rem;
      color: var(--text-muted);
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
    }

    .product-specs span strong {
      color: var(--text-main);
    }

    /* [Section 06] 深色硬核技术理念区 */
    .principles-grid {
      display: grid;
      grid-template-columns: 6fr 6fr;
      gap: 48px;
      align-items: center;
    }

    .dark-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 28px;
      margin-bottom: 20px;
    }

    .dark-card h4 {
      color: var(--accent);
      font-size: 1.15rem;
      margin-bottom: 10px;
    }

    .dark-card p {
      font-size: 0.92rem;
      line-height: 1.7;
      color: #BACDD2;
    }

    /* [Section 07] 临床复健全流程路径 */
    .step-flow {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-flow::before {
      content: '';
      position: absolute;
      top: 36px;
      left: 12%;
      right: 12%;
      height: 2px;
      background: repeating-linear-gradient(to right, var(--primary) 0, var(--primary) 6px, transparent 6px, transparent 12px);
      z-index: 1;
    }

    .step-item {
      background-color: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 30px 20px;
      border: 1px solid var(--border-color);
      text-align: center;
      position: relative;
      z-index: 2;
      box-shadow: var(--shadow-sm);
    }

    .step-num {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background-color: var(--primary);
      color: #FFFFFF;
      font-weight: 700;
      font-size: 1.2rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      border: 4px solid #EBF8F7;
    }

    .step-item h3 {
      font-size: 1.18rem;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .step-item p {
      font-size: 0.88rem;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* [Section 08] 用户与康复者真实故事区 */
    .stories-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .story-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .story-img {
      height: 240px;
      width: 100%;
    }

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

    .story-content {
      padding: 32px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .story-tag {
      color: var(--accent-warm);
      font-weight: 600;
      font-size: 0.85rem;
      margin-bottom: 8px;
    }

    .story-content h3 {
      font-size: 1.35rem;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .story-content p {
      font-size: 0.94rem;
      color: var(--text-body);
      margin-bottom: 20px;
      line-height: 1.7;
    }

    .recovery-timeline {
      background-color: var(--bg-page);
      border-radius: var(--radius-sm);
      padding: 14px 18px;
      margin-top: auto;
      border-left: 3px solid var(--primary);
      font-size: 0.88rem;
    }

    .recovery-timeline span {
      font-weight: 600;
      color: var(--primary-dark);
      display: block;
      margin-bottom: 4px;
    }

    /* [Section 09] 核心临床数据指标展示条 */
    .metrics-bar {
      padding: 60px 0;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      color: #FFFFFF;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }

    .metric-col h3 {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-col p {
      font-size: 0.95rem;
      color: #E2F1F2;
      font-weight: 500;
    }

    /* [Section 10] 机构用户与专家评价区 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .review-card {
      background-color: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .review-stars {
      color: #FFB800;
      margin-bottom: 14px;
      letter-spacing: 2px;
      font-size: 1.1rem;
    }

    .review-card p {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 24px;
      flex-grow: 1;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 18px;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background-color: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }

    .reviewer-meta h4 {
      font-size: 1rem;
      color: var(--text-main);
      line-height: 1.2;
    }

    .reviewer-meta span {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* [Section 11] 康复前沿与科研资讯区 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .news-img {
      height: 200px;
      width: 100%;
    }

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

    .news-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 10px;
    }

    .news-body h3 {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.45;
    }

    .news-body p {
      font-size: 0.9rem;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .news-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* [Section 12] 常见疑问解答区 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

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

    .faq-item.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 24px;
      background-color: #FAFDFD;
      color: var(--text-body);
      font-size: 0.94rem;
      line-height: 1.75;
    }

    .faq-item.active .faq-answer {
      max-height: 240px;
      padding: 0 24px 22px;
      border-top: 1px dashed #E2E8F0;
    }

    /* [Section 13] 转化预约与临床对接区 */
    .cta-box {
      background: linear-gradient(135deg, #102A2E 0%, #0D7377 100%);
      border-radius: var(--radius-lg);
      padding: 56px 60px;
      color: #FFFFFF;
      box-shadow: var(--shadow-lg);
    }

    .cta-grid {
      display: grid;
      grid-template-columns: 5.5fr 6.5fr;
      gap: 50px;
      align-items: center;
    }

    .cta-info h3 {
      font-size: 2.1rem;
      line-height: 1.3;
      margin-bottom: 16px;
      color: #FFFFFF;
    }

    .cta-info p {
      font-size: 1rem;
      line-height: 1.8;
      color: #E2ECEE;
      margin-bottom: 24px;
    }

    .cta-features {
      list-style: none;
      margin-bottom: 30px;
    }

    .cta-features li {
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.94rem;
      color: #D3E6E8;
    }

    .cta-features li::before {
      content: '✓';
      display: inline-block;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: rgba(20, 255, 236, 0.2);
      color: var(--accent);
      text-align: center;
      line-height: 20px;
      font-weight: 700;
      font-size: 0.75rem;
    }

    .form-wrapper {
      background-color: #FFFFFF;
      padding: 36px;
      border-radius: var(--radius-md);
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
      color: var(--text-main);
    }

    .form-wrapper h4 {
      font-size: 1.25rem;
      margin-bottom: 20px;
      color: var(--text-main);
      text-align: center;
    }

    .form-row {
      margin-bottom: 18px;
    }

    .form-row label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-main);
      background-color: #F8FAFB;
      transition: var(--transition);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background-color: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(13, 115, 119, 0.15);
    }

    .form-submit-btn {
      width: 100%;
      padding: 14px;
      background-color: var(--accent-warm);
      color: #FFFFFF;
      border: none;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 1rem;
      cursor: pointer;
      transition: var(--transition);
      margin-top: 10px;
    }

    .form-submit-btn:hover {
      background-color: var(--accent-warm-hover);
      box-shadow: 0 4px 14px rgba(255, 126, 103, 0.35);
    }

    /* 专业信赖页脚 */
    .site-footer {
      background-color: #0B1D20;
      color: #8D9FA3;
      padding: 70px 0 30px;
      font-size: 0.9rem;
      border-top: 3px solid var(--primary);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 3.5fr 2fr 3.5fr 3fr;
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-brand {
      color: #FFFFFF;
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-brand-desc {
      line-height: 1.75;
      margin-bottom: 18px;
    }

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1.05rem;
      margin-bottom: 20px;
      font-weight: 600;
      position: relative;
      padding-bottom: 8px;
    }

    .footer-col h4::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background-color: var(--primary);
    }

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

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

    .footer-contact li {
      margin-bottom: 12px;
      line-height: 1.6;
    }

    .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: 0.82rem;
    }

    .footer-bottom a {
      color: #BACDD2;
    }

    .footer-bottom a:hover {
      color: #FFFFFF;
    }

    /* 移动端响应式 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .overview-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .principles-grid {
        grid-template-columns: 1fr;
      }
      .cta-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
      }
      .pain-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .tech-matrix-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .step-flow {
        grid-template-columns: repeat(2, 1fr);
      }
      .step-flow::before {
        display: none;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px;
      }
      .reviews-grid, .news-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-topbar {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 18px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        display: none;
      }
      .nav-menu.open {
        display: flex;
      }
      .nav-cta {
        display: none;
      }
      .hero-h1 {
        font-size: 2.1rem;
      }
      .hero-image-wrap img {
        height: 320px;
      }
      .hero-kpis {
        grid-template-columns: 1fr;
        gap: 12px;
      }
      .pain-grid, .tech-matrix-grid, .step-flow, .stories-grid {
        grid-template-columns: 1fr;
      }
      .product-item {
        grid-template-columns: 1fr;
      }
      .product-item-img {
        min-height: 220px;
      }
      .product-item-content {
        padding: 24px;
      }
      .cta-box {
        padding: 32px 20px;
      }
      .form-wrapper {
        padding: 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }