/* 全局样式重置与基础配置 */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Inter', system-ui, -apple-system, sans-serif;
    }

    :root {
      --primary-color: #ff4900;
      --dark-color: #1D2129;
      --gray-color: #4E5969;
      --light-gray: #F2F3F5;
      --white-color: #FFFFFF;
      --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
      --transition: all 0.3s ease;
    }

    body {
      color: var(--dark-color);
      background-color: var(--white-color);
      line-height: 1.6;
      padding-top: 72px; /* 为固定导航栏留出空间 */
    }

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

    ul {
      list-style: none;
    }

    /* 核心配置：最大宽度1600px */
    .container {
      width: 100%;
      max-width: 1600px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .section {
      padding: 80px 0;
    }

    .section-title {
      text-align: center;
      margin-bottom: 60px;
    }

    .section-title h2 {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--dark-color);
    }

    .section-title p {
      font-size: 16px;
      color: var(--gray-color);
      max-width: 800px;
      margin: 0 auto;
    }

    /* 首屏轮播海报样式 */
    .hero {
      height: 750px;
      position: relative;
      overflow: hidden;
      padding-top: 0;
    }

    .carousel {
      width: 100%;
      height: 100%;
      position: relative;
    }

    .carousel-item {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      opacity: 0;
      transition: opacity 1s ease-in-out;
      display: flex;
      align-items: center;
      padding: 120px 0 80px;
    }

    .carousel-item.active {
      opacity: 1;
    }

    .carousel-bg {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      z-index: 0;
      filter: brightness(0.8);
    }

    .carousel-item:nth-child(1) .carousel-bg {
      background-image: url('../img/hero-banner-1.webp');
    }

    .carousel-item:nth-child(2) .carousel-bg {
      background-image: url('../img/hero-banner-2.webp');
    }

    .carousel-content-wrapper {
      position: relative;
      z-index: 1;
      width: 100%;
      max-width: 1600px;
      margin: 0 auto;
      padding: 0 20px;
    }
    
    .carousel-content {
      max-width: 800px;
      color: var(--white-color);
      z-index: 1;
      overflow-wrap: break-word;
      word-wrap: break-word;
      text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }

    .carousel-content h1 {
      font-size: clamp(2.5rem, 5vw, 3rem);
      font-weight: 800;
      margin-bottom: clamp(1rem, 2vw, 1.5rem);
      line-height: 1.2;
      text-align: left;
    }

    .carousel-content p {
      font-size: clamp(1rem, 1.8vw, 1.125rem);
      margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
      color: rgba(255, 255, 255, 0.9);
      text-align: left;
      line-height: 1.7;
      max-width: 700px;
    }

    .carousel-btn {
      display: inline-block;
      padding: clamp(0.75rem, 1.8vw, 0.75rem) clamp(2rem, 3vw, 2rem);
      background-color: var(--primary-color);
      color: var(--white-color);
      border-radius: 4px;
      font-weight: 600;
      transition: var(--transition);
      text-align: left;
      font-size: clamp(0.875rem, 1.5vw, 1rem);
      min-width: 120px;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
    }

    .carousel-btn:hover {
      background-color: #e04000;
      transform: translateY(-2px);
    }

    .carousel-indicators {
      position: absolute;
      bottom: clamp(1rem, 3vw, 1.875rem);
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: clamp(0.5rem, 1vw, 0.625rem);
      z-index: 2;
    }

    .indicator {
      width: clamp(0.75rem, 1.5vw, 0.75rem);
      height: clamp(0.75rem, 1.5vw, 0.75rem);
      border-radius: 50%;
      background-color: rgba(255, 255, 255, 0.5);
      cursor: pointer;
      transition: var(--transition);
    }

    .indicator.active {
      background-color: var(--white-color);
      width: clamp(1.875rem, 3vw, 1.875rem);
      border-radius: 6px;
    }

    /* 数据统计区域（位于轮播图正下方，背景使用导航栏黑色，无边框） */
    .stats {
      width: 100%;
      padding: 60px 0;
      background-color: #000000;
    }

    .stats-container {
      display: flex;
      justify-content: center;
      gap: 30px;
      flex-wrap: wrap;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .stat-card {
      flex: 1;
      min-width: 200px;
      background-color: transparent;
      padding: 28px 20px;
      text-align: center;
      transition: var(--transition);
    }

    .stat-card:hover {
      background-color: rgba(255, 255, 255, 0.08);
      transform: translateY(-4px);
    }

    .stat-number {
      font-size: 36px;
      font-weight: 700;
      color: var(--white-color);
      margin-bottom: 8px;
    }

    .stat-desc {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.85);
      line-height: 1.4;
    }

    .carousel-content {
      position: relative;
      z-index: 2;
    }

    /* 产品展示区域 */
    .products {
      background-color: var(--white-color);
      margin-top: 0;
      padding-top: 120px;
    }

    .products-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
      gap: 50px;
    }

    .product-card {
      border-radius: 8px;
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
    }

    .product-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    }

    .product-img {
      width: 100%;
      height: 280px;
      background-color: #FFF0E8;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

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

    .product-content {
      padding: 24px;
    }

    .product-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--dark-color);
    }

    .product-desc {
      font-size: 15px;
      color: var(--gray-color);
      line-height: 1.6;
    }

    /* 应用场景区域 */
    .scenarios {
      background-color: var(--light-gray);
    }

    .scenario-header {
      margin-bottom: 50px;
      text-align: center;
    }

    .scenario-main-card {
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow);
      margin-bottom: 40px;
      position: relative;
      background-color: var(--white-color);
      transition: var(--transition);
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .scenario-main-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
    }

    .scenario-main-card img {
      width: 100%;
      height: 330px;
      object-fit: cover;
      flex-shrink: 0;
    }

    .scenario-main-card .scenario-label {
      position: relative;
      padding: 20px;
      background: transparent;
      color: var(--dark-color);
      font-size: 20px;
      font-weight: 600;
      flex-grow: 1;
      display: flex;
      align-items: center;
    }

    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
    }

    .scenario-card {
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow);
      background-color: var(--white-color);
      transition: var(--transition);
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .scenario-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
    }

    .scenario-card img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      flex-shrink: 0;
    }

    .scenario-card .scenario-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      align-items: center;
    }

    .scenario-card p {
      font-size: 16px;
      font-weight: 600;
      color: var(--dark-color);
      margin: 0;
    }

    /* 企业实力区域 */
    .strength {
      background: url('../img/strength-bg.webp') no-repeat center center;
      background-size: cover;
      color: var(--white-color);
      position: relative;
    }

    .strength::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0, 0, 0, 0.7);
    }

    .strength-container {
      position: relative;
      z-index: 1;
    }

    .strength .section-title h2,
    .strength .section-title p {
      color: var(--white-color);
    }

    .strength-grid {
      display: flex;
      justify-content: space-between;
      gap: 30px;
      flex-wrap: wrap;
    }

    .strength-card {
      flex: 1;
      min-width: 280px;
      text-align: center;
      padding: 40px 20px;
      background-color: rgba(255, 255, 255, 0.1);
      border-radius: 8px;
      backdrop-filter: blur(8px);
    }

    .strength-number {
      font-size: 40px;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--primary-color);
    }

    .strength-desc {
      font-size: 16px;
      color: rgba(255, 255, 255, 0.9);
    }

    /* 合作伙伴区域 */
    .partners {
      background-color: var(--white-color);
      overflow: hidden;
    }

    .partner-scroll-container {
      width: 100%;
      overflow: hidden;
      position: relative;
    }

    .partner-logos {
      display: flex;
      align-items: center;
      gap: 50px;
      animation: scrollLeft 30s linear infinite;
      width: max-content;
    }

    @keyframes scrollLeft {
      0% {
        transform: translateX(0);
      }
      100% {
        transform: translateX(-50%);
      }
    }

    .partner-scroll-container:hover .partner-logos {
      animation-play-state: paused;
    }

    .partner-logo {
      width: 180px;
      height: 100px;
      display: flex;
      align-items: center;
      justify-content: center;
      background-color: var(--white-color);
      border-radius: 8px;
      overflow: hidden;
      transition: var(--transition);
      box-shadow: var(--shadow);
      padding: 15px;
      flex-shrink: 0;
    }

    .partner-logo:hover {
      transform: translateY(-5px) scale(1.05);
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    }

    .partner-logo img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      transition: var(--transition);
    }

    .partner-logo:hover img {
      transform: scale(1.1);
    }

    /* 响应式适配 */
    @media (max-width: 768px) {
      /* 统计区域已移至轮播图下方常规流中，移动端竖向堆叠，与上方间距由常规布局保证 */
      .stats {
        padding: 40px 0;
      }
      .stats-container {
        flex-direction: column;
        gap: 16px;
      }
      .stat-card {
        min-width: 0;
        padding: 20px;
      }
      .stat-number {
        font-size: 30px;
      }
      .products-container {
        grid-template-columns: 1fr;
      }
      .strength-grid {
        flex-direction: column;
      }
      .partner-logos {
        gap: 30px;
        animation-duration: 20s;
      }
      .partner-logo {
        width: 140px;
        height: 80px;
      }
    }

    @media (max-width: 480px) {
      .stats {
        padding: 30px 0;
      }
      .carousel-content h1 {
        font-size: 26px;
      }
      .carousel-content p {
        font-size: 15px;
      }
      .carousel-btn {
        width: 100%;
        justify-content: center;
      }
      .section-title h2 {
        font-size: 24px;
      }
      .strength-number {
        font-size: 32px;
      }
      .partner-logo {
        width: 120px;
        height: 70px;
      }
    }

    @media (max-width: 375px) {
      .carousel-content h1 {
        font-size: 24px;
      }
      .partner-logo {
        width: 100px;
        height: 60px;
      }
    }

    /* 确保body在菜单打开时不滚动 */
    body.menu-open {
      overflow: hidden;
    }