.container {
      max-width: 1650px;
      margin: 0 auto;
      padding: 0 32px;
    }

    /* 橙色主题 */
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: #c45100;
      margin-bottom: 12px;
      letter-spacing: -0.01em;
    }

    .section-sub {
      color: #b45f2b;
      margin-bottom: 40px;
      font-size: 1rem;
      max-width: 700px;
    }

    /* 公司简介 intro 区域 */
    .about-intro {
      margin: 48px 0 56px;
      background: #fffefb;
      border-radius: 32px;
      padding: 48px 48px;
      border: 1px solid #ffdec0;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.02);
    }

    .intro-wrapper {
      display: flex;
      gap: 56px;
      flex-wrap: wrap;
      align-items: flex-start;
    }

    .intro-text {
      flex: 1.2;
    }

    .intro-text p {
      margin-bottom: 20px;
      color: #2c3e2f;
      line-height: 1.6;
      font-size: 1rem;
    }

    /* 公司实景照片网格 (可点击放大) */
    .office-gallery {
      flex: 1;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .office-card {
      background: #fffaf3;
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid #ffebd2;
      transition: transform 0.2s, box-shadow 0.2s;
      cursor: pointer;
    }

    .office-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 22px -10px rgba(229, 103, 0, 0.12);
      border-color: #ffbc7a;
    }

    .office-img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      display: block;
      background: #f4e7dc;
    }

    .office-caption {
      padding: 14px 16px;
      font-weight: 600;
      color: #bc530f;
      font-size: 0.85rem;
      background: #ffffff;
      border-top: 1px solid #ffefdf;
    }

    /* 统计数据栏 */
    .stats-row {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 24px;
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid #ffe0bc;
    }

    .stat-block {
      text-align: center;
      flex: 1;
      min-width: 100px;
    }

    .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: #e56700;
      line-height: 1.2;
    }

    .stat-label {
      font-size: 0.8rem;
      color: #bd7a44;
      text-transform: uppercase;
      letter-spacing: 0.3px;
    }

    /* 优势网格 */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
      margin: 56px 0 48px;
    }

    .advantage-card {
      background: #ffffff;
      border-radius: 28px;
      padding: 28px 20px;
      text-align: center;
      border: 1px solid #ffdec0;
      transition: all 0.25s;
    }

    .advantage-card:hover {
      transform: translateY(-5px);
      border-color: #ffbc7a;
      box-shadow: 0 20px 28px -12px rgba(229, 103, 0, 0.12);
    }

    .advantage-icon {
      font-size: 2.5rem;
      margin-bottom: 16px;
    }

    .advantage-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: #bc530f;
      margin-bottom: 10px;
    }

    .advantage-card p {
      color: #a55c2a;
      font-size: 0.85rem;
      line-height: 1.4;
    }

    /* 服务流程 6步 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 20px;
      margin: 40px 0 56px;
    }

    .step {
      background: #ffffff;
      border-radius: 28px;
      padding: 24px 12px;
      text-align: center;
      border: 1px solid #ffdec0;
      transition: 0.2s;
    }

    .step:hover {
      border-color: #ffbc7a;
      background: #fffcf7;
    }

    .step-number {
      background: #e56700;
      width: 42px;
      height: 42px;
      line-height: 42px;
      text-align: center;
      border-radius: 60px;
      color: white;
      font-weight: 800;
      font-size: 1.2rem;
      margin: 0 auto 14px;
    }

    .step h4 {
      color: #bc530f;
      margin-bottom: 8px;
      font-size: 1rem;
    }

    .step p {
      font-size: 0.75rem;
      color: #b25d1c;
    }

    /* 证书区域 */
    .certificate {
      text-align: center;
      margin: 48px 0 40px;
      background: #fffefb;
      border-radius: 40px;
      padding: 36px 24px;
      border: 1px solid #ffdec0;
    }

    .cert-logos {
      display: flex;
      justify-content: center;
      gap: 32px;
      flex-wrap: wrap;
      margin-top: 24px;
    }

    .cert-item {
      background: #fefaf5;
      padding: 8px 28px;
      border-radius: 60px;
      font-weight: 600;
      color: #e56700;
      border: 1px solid #ffd9af;
      font-size: 0.85rem;
    }

    /* CTA 区域 (手机/WhatsApp/邮箱可链接) */
    .cta-about {
      background: #fff0e2;
      border-radius: 48px;
      text-align: center;
      padding: 48px 28px;
      margin: 56px 0 64px;
      border: 1px solid #ffdec0;
    }

    .cta-about h2 {
      font-size: 1.9rem;
      font-weight: 800;
      color: #d45c00;
      margin-bottom: 16px;
    }

    .cta-about p {
      color: #b25d1c;
      margin-bottom: 28px;
    }

    .contact-links-inline {
      display: flex;
      justify-content: center;
      gap: 32px;
      flex-wrap: wrap;
      margin-top: 20px;
    }

    .contact-link-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: white;
      padding: 10px 28px;
      border-radius: 60px;
      text-decoration: none;
      font-weight: 600;
      color: #c45100;
      border: 1px solid #ffd9af;
      transition: all 0.2s;
    }

    .contact-link-btn:hover {
      background: #e56700;
      color: white;
      border-color: #e56700;
      transform: translateY(-2px);
    }

    .btn-orange {
      display: inline-block;
      background-color: #e56700;
      color: white;
      font-weight: 700;
      padding: 12px 40px;
      border-radius: 60px;
      text-decoration: none;
      transition: all 0.2s;
    }

    .btn-orange:hover {
      background-color: #c45100;
      transform: translateY(-2px);
    }

    /* ========= 右侧固定在线客服 (包含二维码图片) ========= */
    .floating-contact {
      position: fixed;
      right: 20px;
      top: 50%;
      transform: translateY(-50%);
      background: #ffffff;
      border-radius: 32px;
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
      border: 1px solid #ffdec0;
      width: 80px;
      padding: 20px 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 20px;
      z-index: 999;
      transition: 0.2s;
    }

    .contact-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-decoration: none;
      gap: 6px;
      font-size: 10px;
      color: #c45100;
      font-weight: 500;
      transition: 0.2s;
      cursor: pointer;
      text-align: center;
    }

    .contact-item:hover {
      transform: scale(1.05);
      color: #e56700;
    }

    .contact-item svg {
      width: 28px;
      height: 28px;
      fill: #e56700;
    }

    .qr-small {
      width: 52px;
      height: 52px;
      object-fit: contain;
      border-radius: 12px;
      background: #fff;
      padding: 4px;
      border: 1px solid #ffe0bc;
    }

    .floating-label {
      font-size: 9px;
      letter-spacing: 0.2px;
      font-weight: 600;
    }

    /* 二维码大图模态框 */
    .qr-modal {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0,0,0,0.8);
      z-index: 2000;
      justify-content: center;
      align-items: center;
      cursor: pointer;
    }
    .qr-modal-content {
      background: white;
      border-radius: 32px;
      padding: 24px;
      text-align: center;
      max-width: 320px;
      width: 85%;
      border-top: 6px solid #e56700;
    }
    .qr-modal-img {
      width: 100%;
      max-width: 240px;
      margin: 16px auto;
      display: block;
    }
    .qr-modal-close {
      margin-top: 12px;
      font-weight: bold;
      background: #e56700;
      color: white;
      border: none;
      padding: 8px 20px;
      border-radius: 40px;
      cursor: pointer;
    }

    /* 图片lightbox (办公室大图) */
    .lightbox {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0,0,0,0.85);
      z-index: 2100;
      justify-content: center;
      align-items: center;
      cursor: pointer;
    }
    .lightbox img {
      max-width: 85%;
      max-height: 85%;
      object-fit: contain;
      border-radius: 24px;
    }
    .close-lightbox {
      position: absolute;
      top: 30px;
      right: 40px;
      font-size: 42px;
      color: white;
      cursor: pointer;
    }

  

    @media (max-width: 1400px) {
      .container { padding: 0 28px; }
      .advantages-grid { grid-template-columns: repeat(2, 1fr); }
      .process-steps { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 1100px) {
      .intro-wrapper { flex-direction: column; }
      .office-gallery { grid-template-columns: repeat(2, 1fr); }
      .floating-contact { width: 70px; padding: 16px 6px; }
      .qr-small { width: 46px; height: 46px; }
    }
    @media (max-width: 768px) {
      .advantages-grid { grid-template-columns: 1fr; }
      .process-steps { grid-template-columns: 1fr; }
      .office-gallery { grid-template-columns: 1fr; }
      .section-title { font-size: 1.7rem; }
      .floating-contact { display: none; }
    }