:root {
        --brand-orange: #e8772e;
        --text-dark: #333333;
        --text-gray: #666666;
      }

      body {
        background-color: #ffffff;
        color: var(--text-dark);
        font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
      }

      /* === 顶部大图 === */
      .hero-section {
        position: relative;
        width: 100%;
        min-height: 600px;
        background-color: rgba(0, 0, 0, 0.2);
        background-blend-mode: overlay;
        background-size: cover;
        background-position: center;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 100px 15px;
        margin-top: 0 !important;
      }
      .hero-desktop {
        background-image: url("https://www.energydawnice.com/wp-content/uploads/2024/05/solar-energy-systems.webp");
      }
      .hero-mobile {
        background-image: url("https://www.energydawnice.com/wp-content/uploads/2024/05/solar-systems.jpg");
        display: none;
        min-height: 300px; /* Reduced height for mobile */
      }
      .hero-content {
        max-width: 1200px;
        width: 100%;
        color: #fff;
      }
      .hero-subtitle {
        font-size: 70px;
        font-weight: bold;
        margin-bottom: 20px;
        color: #fff;
      }

      /* === 落地页专属样式 === */
      .solar-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 60px 15px;
      }

      /* 1. 简介区域样式 (优化) */
      .intro-section {
        padding: 80px 0 40px;
      }
      .intro-title {
        font-size: 36px;
        font-weight: 700;
        color: #111;
        margin-bottom: 30px;
        line-height: 1.3;
        position: relative;
        padding-bottom: 15px;
      }
      .intro-title::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 60px;
        height: 4px;
        background-color: var(--brand-orange);
        border-radius: 2px;
      }
      .intro-text {
        font-size: 16px;
        line-height: 1.8;
        color: #555;
        margin-bottom: 20px;
        text-align: justify;
      }
      .intro-text-full {
        font-size: 16px;
        line-height: 1.8;
        color: #555;
        margin-top: 50px;
        margin-bottom: 30px;
        text-align: justify;
        background-color: #fcfcfc;
        padding: 25px;
        border-left: 4px solid var(--brand-orange);
        border-radius: 0 8px 8px 0;
      }
      .intro-image-simple {
        width: 100%;
        display: block;
        border-radius: 12px;
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        transition: transform 0.3s ease;
      }
      .intro-image-simple:hover {
        transform: translateY(-5px);
      }

      /* 2. 功率按钮网格样式 (优化) */
      .power-grid-container {
        padding: 0 0 80px 0;
      }
      .power-grid-table {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
      }
      .power-btn-block {
        background-color: #ffffff;
        color: #333;
        border: 1px solid #eaeaea;
        border-radius: 8px;
        font-size: 24px;
        font-weight: 700;
        padding: 30px 20px;
        text-align: center;
        text-decoration: none;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s ease;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
        position: relative;
        overflow: hidden;
      }
      .power-btn-block::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 4px;
        height: 100%;
        background-color: var(--brand-orange);
        transform: scaleY(0);
        transition: transform 0.3s ease;
        transform-origin: bottom;
      }
      .power-btn-block:hover {
        color: var(--brand-orange);
        border-color: #fff;
        transform: translateY(-5px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
        text-decoration: none;
      }
      .power-btn-block:hover::before {
        transform: scaleY(1);
      }

      /* 3. 关键组成部分 (优化为卡片式布局) */
      .section-title-bar {
        background-color: #f8f9fa;
        padding: 20px 30px;
        margin: 80px 0 40px 0;
        border-left: 5px solid var(--brand-orange);
        border-radius: 4px;
      }
      .section-title-bar h2 {
        margin: 0;
        font-size: 28px;
        color: #111;
        font-weight: 700;
      }

      .component-wrapper {
        margin-bottom: 40px;
        background: #fff;
        border-radius: 16px;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
        overflow: hidden;
        border: 1px solid #f0f0f0;
        transition:
          transform 0.3s ease,
          box-shadow 0.3s ease;
      }
      .component-wrapper:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 50px rgba(0, 0, 0, 0.08);
      }

      .component-row {
        display: flex;
        flex-wrap: wrap;
        align-items: stretch;
        margin: 0;
      }

      .component-text-col {
        padding: 50px;
        flex: 1 1 50%;
        display: flex;
        flex-direction: column;
        justify-content: center;
      }

      .component-img-col {
        flex: 1 1 50%;
        padding: 40px;
        background-color: #fafafa;
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 350px;
      }

      .component-img-col img {
        max-width: 100%;
        max-height: 400px;
        object-fit: contain;
        transition: transform 0.5s ease;
      }

      .component-wrapper:hover .component-img-col img {
        transform: scale(1.05);
      }

      .component-title {
        font-size: 24px;
        font-weight: 700;
        margin-bottom: 25px;
        color: #111;
        position: relative;
        padding-bottom: 15px;
      }
      .component-title::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 40px;
        height: 3px;
        background-color: var(--brand-orange);
      }

      .component-title a {
        color: #111;
        text-decoration: none;
      }
      .component-title a:hover {
        color: var(--brand-orange);
      }

      .custom-bullet-list {
        list-style: none;
        padding-left: 0;
        margin: 0;
      }
      .custom-bullet-list li {
        position: relative;
        padding-left: 28px;
        margin-bottom: 16px;
        font-size: 16px;
        line-height: 1.7;
        color: #555;
      }
      .custom-bullet-list li::before {
        content: "\f058"; /* FontAwesome check-circle */
        font-family: "FontAwesome";
        color: var(--brand-orange);
        font-size: 18px;
        position: absolute;
        left: 0;
        top: 2px;
      }

      /* 交替布局 */
      .component-wrapper.reverse .component-row {
        flex-direction: row-reverse;
      }

      /* 4. 服务与保证 */
      .service-title {
        font-size: 20px;
        font-weight: bold;
        margin-top: 40px;
        margin-bottom: 15px;
        color: #333;
      }

      /* 5. 客户案例专属样式 */
      .custom-section-title {
        text-align: center;
        margin: 60px 0 40px;
      }
      .custom-section-title h2 {
        font-size: 32px;
        font-weight: bold;
        color: #333;
        margin-bottom: 0;
        position: relative;
        display: inline-block;
        padding-bottom: 15px;
      }
      .custom-section-title h2::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 3px;
        background-color: var(--brand-orange);
      }
      .case-card {
        background: #fff;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        transition: all 0.3s ease;
        margin-bottom: 30px;
      }
      .case-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
      }
      .case-card a {
        text-decoration: none;
        color: #333;
        display: block;
      }
      .case-img-box {
        overflow: hidden;
        aspect-ratio: 4/3; /* 保持图片比例一致 */
        background-color: #f8f9fa;
      }
      .case-img-box img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
      }
      .case-card:hover .case-img-box img {
        transform: scale(1.05);
      }
      .case-info {
        padding: 15px;
        text-align: center;
      }
      .case-info h4 {
        margin: 0;
        font-size: 16px;
        font-weight: 600;
        color: #333;
        transition: color 0.3s;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }
      .case-card:hover .case-info h4 {
        color: var(--brand-orange);
      }

      /* 6. 单图切换证书展示样式 */
      .cert-simple-wrapper {
        position: relative;
        width: 100%;
        max-width: 1200px; /* 允许图片展示得更大 */
        margin: 0 auto 60px;
        overflow: hidden;
      }
      .cert-simple-container {
        display: flex;
        transition: transform 0.5s ease-in-out;
        width: 100%;
      }
      .cert-simple-item {
        flex: 0 0 100%;
        width: 100%;
        padding: 0 50px; /* 给左右按钮留出空间 */
        box-sizing: border-box;
      }
      .cert-simple-item img {
        width: 100%;
        height: auto;
        display: block;
        margin: 0 auto;
        /* 移除黑色边框，因为原图已经自带了 */
      }

      .cert-nav-btn {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 45px;
        height: 45px;
        background-color: rgba(0, 0, 0, 0.6);
        color: #fff;
        border: 1px solid rgba(255, 255, 255, 0.2);
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        z-index: 10;
        transition: all 0.3s;
        border-radius: 4px;
        font-size: 20px;
      }
      .cert-nav-btn:hover {
        background-color: var(--brand-orange);
        border-color: var(--brand-orange);
      }
      .cert-prev {
        left: 0px;
      }
      .cert-next {
        right: 0px;
      }

      /* === Inquiry Section === */
      .inquiry-section { padding: 80px 0; background: #fff; }
      .inquiry-wrapper {
          background: #fff;
          border-radius: 30px;
          padding: 50px;
          box-shadow: 0 40px 80px rgba(0,0,0,0.05);
          border: 1px solid #f0f0f0;
          max-width: 900px;
          margin: 0 auto;
      }
      .modern-form .form-control {
          background: #f9f9fb !important;
          border: 1px solid #e5e5e5 !important;
          border-radius: 12px !important;
          height: 50px;
          margin-bottom: 20px;
          transition: 0.3s;
          color: #333;
          width: 100%;
          padding: 10px 15px;
          box-sizing: border-box;
      }
      textarea.form-control {
          height: auto;
      }
      .modern-form .form-control:focus {
          border-color: var(--brand-orange) !important;
          background: #fff !important;
          box-shadow: 0 0 0 4px rgba(232, 119, 46, 0.1) !important;
          outline: none;
      }
      .cta-submit-btn {
          background: var(--brand-orange);
          color: #fff;
          border: none;
          padding: 18px 70px;
          font-size: 16px;
          font-weight: 700;
          border-radius: 50px;
          cursor: pointer;
          transition: 0.3s;
          box-shadow: 0 10px 20px rgba(232, 119, 46, 0.25);
          margin-top: 10px;
      }
      .cta-submit-btn:hover {
          transform: translateY(-3px);
          box-shadow: 0 15px 30px rgba(232, 119, 46, 0.4);
          background: #d66826;
      }
      .form-row {
          display: flex;
          flex-wrap: wrap;
          margin-right: -10px;
          margin-left: -10px;
      }
      .form-col-6 {
          flex: 0 0 50%;
          max-width: 50%;
          padding-right: 10px;
          padding-left: 10px;
          box-sizing: border-box;
      }
      .form-col-12 {
          flex: 0 0 100%;
          max-width: 100%;
          padding-right: 10px;
          padding-left: 10px;
          box-sizing: border-box;
      }

      @media (max-width: 991px) {
        .hero-subtitle {
          font-size: 48px;
        }
        .intro-title {
          font-size: 28px;
        }

        .power-grid-table {
          grid-template-columns: repeat(3, 1fr);
          gap: 15px;
        }
        .power-btn-block {
          font-size: 20px;
          padding: 20px 15px;
        }

        .component-text-col {
          padding: 30px;
        }
        .component-img-col {
          padding: 30px;
          min-height: 300px;
        }
      }

      @media (max-width: 767px) {
        .hero-section {
          margin-top: 0; /* Remove top margin on mobile */
        }
        .hero-desktop {
          display: none;
        }
        .hero-mobile {
          display: flex;
          padding: 30px 15px; /* Further reduce padding on mobile */
          min-height: 280px; /* Increased min-height */
        }
        .hero-subtitle {
          font-size: 36px;
          text-align: center;
        }

        .solar-container {
          padding: 30px 15px; /* Reduce container padding */
        }
        .intro-section {
          padding: 30px 0 20px; /* Reduce intro section padding */
        }

        .power-grid-table {
          grid-template-columns: repeat(2, 1fr);
          gap: 10px;
        }
        .power-btn-block {
          font-size: 18px;
          padding: 15px 10px;
        }

        /* 移动端强制图片在上，文字在下 */
        .component-wrapper .component-row,
        .component-wrapper.reverse .component-row {
          flex-direction: column;
        }
        .component-text-col {
          order: 2;
          padding: 30px 20px;
        }
        .component-img-col {
          order: 1;
          padding: 20px;
          min-height: auto;
        }
        .component-img-col img {
          max-height: 250px;
        }

        .cert-simple-item {
          padding: 0 30px;
        }
        .cert-nav-btn {
          width: 35px;
          height: 35px;
          font-size: 16px;
        }

        /* Inquiry Form Mobile */
        .inquiry-section { padding: 40px 0; }
        .inquiry-wrapper { padding: 30px 20px; }
        .form-col-6 { flex: 0 0 100%; max-width: 100%; }
        .cta-submit-btn { width: 100%; }
      }