:root {
      --rikvip-primary-color: #e44d26; /* Màu cam đỏ mạnh mẽ */
      --rikvip-secondary-color: #ff9900; /* Màu cam sáng */
      --rikvip-dark-bg: #1a1a1a; /* Nền tối */
      --rikvip-light-text: #ffffff; /* Chữ sáng */
      --rikvip-gray-text: #cccccc; /* Chữ xám */
      --rikvip-accent-color: #00bfff; /* Màu xanh nước biển làm điểm nhấn */
      --rikvip-border-color: #333333; /* Màu viền */
      --rikvip-font-family: 'Arial', sans-serif;
    }

    .page-rikvip {
      font-family: var(--rikvip-font-family);
      background-color: var(--rikvip-dark-bg);
      color: var(--rikvip-light-text);
      line-height: 1.6;
      overflow-x: hidden;
      padding-top: 120px; /* Cho desktop, để tránh bị che bởi header cố định */
    }

    @media (max-width: 768px) {
      .page-rikvip {
        padding-top: 100px; /* Cho mobile */
      }
    }

    .page-rikvip__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    .page-rikvip__hero-section {
      text-align: center;
      padding: 40px 0;
      background-color: var(--rikvip-dark-bg);
      position: relative;
      overflow: hidden;
    }

    .page-rikvip__hero-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
      object-fit: cover;
      filter: none; /* Đảm bảo không có filter */
      -webkit-filter: none; /* Đảm bảo không có filter */
    }

    .page-rikvip__hero-content {
      position: relative;
      z-index: 1;
      padding: 20px;
      background-color: rgba(0, 0, 0, 0.5);
      border-radius: 8px;
      margin-top: -80px; /* Đẩy nội dung lên trên ảnh một chút */
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-rikvip__hero-title {
      font-size: 2.8em;
      color: var(--rikvip-secondary-color);
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      font-weight: bold;
      line-height: 1.2;
    }

    .page-rikvip__hero-description {
      font-size: 1.2em;
      color: var(--rikvip-gray-text);
      margin-bottom: 30px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-rikvip__hero-button {
      display: inline-block;
      background-color: var(--rikvip-primary-color);
      color: var(--rikvip-light-text);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      border: none;
      cursor: pointer;
    }

    .page-rikvip__hero-button:hover {
      background-color: var(--rikvip-secondary-color);
      transform: translateY(-3px);
    }

    .page-rikvip__section {
      padding: 60px 0;
      background-color: var(--rikvip-dark-bg);
      border-top: 1px solid var(--rikvip-border-color);
    }

    .page-rikvip__section-title {
      font-size: 2.2em;
      color: var(--rikvip-secondary-color);
      text-align: center;
      margin-bottom: 40px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-rikvip__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--rikvip-primary-color);
      border-radius: 2px;
    }

    .page-rikvip__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
    }

    .page-rikvip__card {
      background-color: #2a2a2a;
      border-radius: 10px;
      padding: 25px;
      text-align: center;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid var(--rikvip-border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      align-items: center;
    }

    .page-rikvip__card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
    }

    .page-rikvip__card-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-bottom: 20px;
    }

    .page-rikvip__card-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      object-fit: cover;
      filter: none; /* Đảm bảo không có filter */
      -webkit-filter: none; /* Đảm bảo không có filter */
      min-width: 200px; /* Tối thiểu 200px */
      min-height: 150px; /* Tối thiểu 150px, để không quá nhỏ */
    }

    .page-rikvip__card-title {
      font-size: 1.5em;
      color: var(--rikvip-secondary-color);
      margin-bottom: 15px;
      font-weight: bold;
    }

    .page-rikvip__card-text {
      color: var(--rikvip-gray-text);
      font-size: 1em;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .page-rikvip__card-link {
      display: inline-block;
      background-color: var(--rikvip-accent-color);
      color: var(--rikvip-light-text);
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-rikvip__card-link:hover {
      background-color: #008cba;
    }

    .page-rikvip__provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 20px;
      justify-items: center;
      align-items: center;
    }

    .page-rikvip__provider-item {
      background-color: #2a2a2a;
      border-radius: 8px;
      padding: 15px;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
      transition: transform 0.2s ease;
      border: 1px solid var(--rikvip-border-color);
      display: flex;
      justify-content: center;
      align-items: center;
      width: 100%;
      max-width: 180px; /* Giới hạn kích thước logo nhà cung cấp */
      height: 100px;
      box-sizing: border-box;
    }

    .page-rikvip__provider-item:hover {
      transform: translateY(-5px);
    }

    .page-rikvip__provider-logo {
      max-width: 100%;
      max-height: 100%;
      height: auto;
      object-fit: contain;
      filter: none; /* Đảm bảo không có filter */
      -webkit-filter: none; /* Đảm bảo không có filter */
      min-width: 100px;
      min-height: 50px;
    }

    .page-rikvip__text-content {
      padding: 20px 0;
      color: var(--rikvip-gray-text);
    }

    .page-rikvip__text-content h2 {
      font-size: 2em;
      color: var(--rikvip-secondary-color);
      margin-bottom: 20px;
      text-align: left;
    }

    .page-rikvip__text-content h3 {
      font-size: 1.5em;
      color: var(--rikvip-primary-color);
      margin-top: 30px;
      margin-bottom: 15px;
      text-align: left;
    }

    .page-rikvip__text-content p {
      margin-bottom: 15px;
      text-align: left;
    }

    .page-rikvip__text-content ul {
      list-style-type: disc;
      margin-left: 20px;
      margin-bottom: 15px;
    }

    .page-rikvip__text-content li {
      margin-bottom: 8px;
    }

    /* FAQ Section Styles */
    .page-rikvip__faq-section {
      padding: 60px 0;
      background-color: #1f1f1f;
      border-top: 1px solid var(--rikvip-border-color);
    }

    .page-rikvip__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      border: 1px solid var(--rikvip-border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    }

    .page-rikvip__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      background-color: #333333;
      color: var(--rikvip-light-text);
      cursor: pointer;
      user-select: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease;
    }

    .page-rikvip__faq-question h3 {
      margin: 0;
      color: inherit;
      font-size: 1.1em;
      pointer-events: none; /* Ngăn chặn sự kiện click trên h3 */
    }

    .page-rikvip__faq-question:hover {
      background-color: #444444;
    }

    .page-rikvip__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      transition: transform 0.3s ease;
      color: var(--rikvip-primary-color);
      pointer-events: none; /* Ngăn chặn sự kiện click trên toggle */
    }

    .page-rikvip__faq-item.active .page-rikvip__faq-toggle {
      transform: rotate(45deg);
      color: var(--rikvip-secondary-color);
    }

    .page-rikvip__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px; /* Giữ padding ngang */
      color: var(--rikvip-gray-text);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-rikvip__faq-item.active .page-rikvip__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px 25px !important; /* Padding dọc khi mở */
      opacity: 1;
    }

    /* Floating Buttons */
    .page-rikvip__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .page-rikvip__floating-button {
      background-color: var(--rikvip-primary-color);
      color: var(--rikvip-light-text);
      padding: 12px 20px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1em;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-align: center;
      white-space: nowrap;
      border: none;
      cursor: pointer;
    }

    .page-rikvip__floating-button--login {
      background-color: var(--rikvip-accent-color);
    }

    .page-rikvip__floating-button:hover {
      transform: translateY(-3px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6);
    }

    .page-rikvip__floating-button--login:hover {
      background-color: #008cba;
    }

    /* Responsive adjustments */
    @media (max-width: 1024px) {
      .page-rikvip__hero-title {
        font-size: 2.2em;
      }
      .page-rikvip__section-title {
        font-size: 1.8em;
      }
      .page-rikvip__card-title {
        font-size: 1.3em;
      }
    }

    @media (max-width: 768px) {
      .page-rikvip__hero-title {
        font-size: 1.8em;
      }
      .page-rikvip__hero-description {
        font-size: 1em;
      }
      .page-rikvip__hero-button {
        padding: 12px 25px;
        font-size: 1.1em;
      }
      .page-rikvip__section {
        padding: 40px 0;
      }
      .page-rikvip__section-title {
        font-size: 1.6em;
        margin-bottom: 30px;
      }
      .page-rikvip__grid {
        grid-template-columns: 1fr;
      }
      .page-rikvip__provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }
      .page-rikvip__provider-item {
        max-width: 150px;
        height: 80px;
        padding: 10px;
      }
      .page-rikvip__floating-buttons {
        bottom: 15px;
        right: 15px;
        flex-direction: row; /* Nút nổi trên mobile xếp hàng ngang */
        gap: 8px;
      }
      .page-rikvip__floating-button {
        padding: 10px 15px;
        font-size: 0.9em;
      }
      .page-rikvip__card-image,
      .page-rikvip__provider-logo {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-rikvip__card-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-rikvip__hero-title {
        font-size: 1.5em;
      }
      .page-rikvip__hero-description {
        font-size: 0.9em;
      }
      .page-rikvip__hero-button {
        font-size: 1em;
        padding: 10px 20px;
      }
      .page-rikvip__section-title {
        font-size: 1.4em;
      }
      .page-rikvip__floating-buttons {
        bottom: 10px;
        right: 10px;
      }
      .page-rikvip__floating-button {
        padding: 8px 12px;
        font-size: 0.85em;
      }
    }