:root {
      --page-45winvn-primary-color: #e44d26; /* Một màu đỏ cam nổi bật */
      --page-45winvn-secondary-color: #333;
      --page-45winvn-accent-color: #f7b731; /* Màu vàng cam */
      --page-45winvn-text-light: #fff;
      --page-45winvn-text-dark: #222;
      --page-45winvn-bg-light: #f5f5f5;
      --page-45winvn-bg-dark: #1a1a1a;
      --page-45winvn-gradient-start: #ff5f6d;
      --page-45winvn-gradient-end: #ffc371;
    }

    body {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-45winvn-text-dark);
      background-color: var(--page-45winvn-bg-light);
      margin: 0;
      padding: 0;
    }

    .page-45winvn {
      max-width: 100%;
      margin: 0 auto;
      overflow-x: hidden;
      box-sizing: border-box;
      padding-top: var(--header-offset, 122px); /* Fallback for header offset */
    }

    .page-45winvn__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: var(--page-45winvn-text-light);
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    }
    .page-45winvn__section--dark {
      background-color: var(--page-45winvn-bg-dark);
      color: var(--page-45winvn-text-light);
    }

    .page-45winvn__title {
      text-align: center;
      color: var(--page-45winvn-primary-color);
      margin-bottom: 30px;
      font-size: 2.5em;
      font-weight: bold;
    }
    .page-45winvn__title--dark {
      color: var(--page-45winvn-accent-color);
    }

    .page-45winvn__subtitle {
      text-align: center;
      color: var(--page-45winvn-secondary-color);
      margin-bottom: 25px;
      font-size: 1.8em;
    }
    .page-45winvn__subtitle--dark {
      color: var(--page-45winvn-text-light);
    }

    .page-45winvn__paragraph {
      text-align: center;
      margin-bottom: 20px;
      font-size: 1.1em;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .page-45winvn__paragraph--dark {
      color: var(--page-45winvn-bg-light);
    }

    .page-45winvn__button {
      display: inline-block;
      padding: 12px 25px;
      background: linear-gradient(45deg, var(--page-45winvn-gradient-start), var(--page-45winvn-gradient-end));
      color: var(--page-45winvn-text-light);
      text-decoration: none;
      border-radius: 30px;
      font-weight: bold;
      transition: all 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
      text-align: center;
    }

    .page-45winvn__button:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
      opacity: 0.9;
    }

    /* Hero Section */
    .page-45winvn__hero-section {
      background: linear-gradient(135deg, var(--page-45winvn-gradient-start) 0%, var(--page-45winvn-gradient-end) 100%);
      color: var(--page-45winvn-text-light);
      padding: 60px 20px 80px;
      text-align: center;
      overflow: hidden;
      position: relative;
      padding-top: 10px; /* Small top padding, body handles main offset */
    }

    .page-45winvn__hero-content {
      position: relative;
      z-index: 1;
      max-width: 900px;
      margin: 0 auto;
    }

    .page-45winvn__hero-title {
      font-size: 3.5em;
      margin-bottom: 20px;
      line-height: 1.2;
      color: var(--page-45winvn-text-light);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    }

    .page-45winvn__hero-description {
      font-size: 1.3em;
      margin-bottom: 40px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
      color: rgba(255, 255, 255, 0.9);
    }

    .page-45winvn__hero-image-wrapper {
      margin-top: 40px;
      max-width: 100%;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-45winvn__hero-image {
      max-width: 100%;
      height: auto;
      border-radius: 15px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    }

    /* Floating Buttons */
    .page-45winvn__floating-buttons {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 15px;
      z-index: 1000;
    }

    .page-45winvn__floating-button {
      padding: 12px 25px;
      font-size: 1.1em;
      font-weight: bold;
      border-radius: 30px;
      background: var(--page-45winvn-primary-color);
      color: var(--page-45winvn-text-light);
      text-decoration: none;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      white-space: nowrap;
    }

    .page-45winvn__floating-button:hover {
      transform: translateY(-3px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
    }

    .page-45winvn__floating-register {
      background: linear-gradient(90deg, #ff7e5f, #feb47b); /* Màu cam sáng */
    }

    .page-45winvn__floating-login {
      background: linear-gradient(90deg, #6a11cb, #2575fc); /* Màu tím xanh */
    }

    /* Game Categories Section */
    .page-45winvn__game-categories {
      text-align: center;
      padding: 60px 20px;
      background-color: var(--page-45winvn-bg-light);
    }

    .page-45winvn__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      max-width: 1200px;
      margin: 40px auto 0;
    }

    .page-45winvn__game-card {
      background-color: var(--page-45winvn-text-light);
      border-radius: 12px;
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      padding-bottom: 20px;
    }

    .page-45winvn__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    }

    .page-45winvn__game-image-wrapper {
      width: 100%;
      height: 200px; /* Fixed height for image consistency */
      overflow: hidden;
      display: flex;
      justify-content: center;
      align-items: center;
      margin-bottom: 15px;
    }

    .page-45winvn__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .page-45winvn__game-title {
      font-size: 1.5em;
      color: var(--page-45winvn-primary-color);
      margin-bottom: 10px;
      padding: 0 15px;
    }

    .page-45winvn__game-description {
      font-size: 1em;
      color: var(--page-45winvn-secondary-color);
      padding: 0 15px;
    }

    /* Promotions Section */
    .page-45winvn__promotions-section {
      background-color: var(--page-45winvn-bg-dark);
      color: var(--page-45winvn-text-light);
      padding: 60px 20px;
      text-align: center;
    }

    .page-45winvn__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      max-width: 1200px;
      margin: 40px auto 0;
    }

    .page-45winvn__promo-card {
      background-color: #2a2a2a;
      border-radius: 12px;
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: left;
    }

    .page-45winvn__promo-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    }

    .page-45winvn__promo-image {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
    }

    .page-45winvn__promo-content {
      padding: 20px;
    }

    .page-45winvn__promo-title {
      font-size: 1.6em;
      color: var(--page-45winvn-accent-color);
      margin-bottom: 10px;
    }

    .page-45winvn__promo-description {
      font-size: 1em;
      color: rgba(255, 255, 255, 0.8);
      margin-bottom: 15px;
    }

    /* Why Choose Us Section */
    .page-45winvn__why-choose-us {
      padding: 60px 20px;
      text-align: center;
      background-color: var(--page-45winvn-bg-light);
    }

    .page-45winvn__feature-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      max-width: 1200px;
      margin: 40px auto 0;
    }

    .page-45winvn__feature-card {
      background-color: var(--page-45winvn-text-light);
      border-radius: 12px;
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
      padding: 30px;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-45winvn__feature-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    }

    .page-45winvn__feature-icon {
      width: 80px;
      height: 80px;
      margin: 0 auto 20px;
      display: block;
      max-width: 100%;
      object-fit: contain;
    }

    .page-45winvn__feature-title {
      font-size: 1.4em;
      color: var(--page-45winvn-primary-color);
      margin-bottom: 10px;
    }

    .page-45winvn__feature-description {
      font-size: 1em;
      color: var(--page-45winvn-secondary-color);
    }

    /* Payment and Providers Section */
    .page-45winvn__payment-providers {
      background-color: var(--page-45winvn-text-light);
      padding: 60px 20px;
      text-align: center;
    }

    .page-45winvn__payment-grid,
    .page-45winvn__provider-grid {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      max-width: 1000px;
      margin: 30px auto 60px;
    }

    .page-45winvn__payment-item,
    .page-45winvn__provider-item {
      padding: 15px 25px;
      border: 1px solid #ddd;
      border-radius: 8px;
      background-color: #fff;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      transition: transform 0.2s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      min-width: 150px;
      flex-grow: 1;
      box-sizing: border-box;
    }

    .page-45winvn__payment-item:hover,
    .page-45winvn__provider-item:hover {
      transform: translateY(-3px);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }

    .page-45winvn__payment-logo,
    .page-45winvn__provider-logo {
      max-width: 120px;
      height: auto;
      display: block;
    }

    /* FAQ Section */
    .page-45winvn__faq-section {
      background-color: var(--page-45winvn-bg-dark);
      color: var(--page-45winvn-text-light);
      padding: 60px 20px;
      text-align: center;
    }

    .page-45winvn__faq-container {
      max-width: 800px;
      margin: 40px auto 0;
      text-align: left;
    }

    .page-45winvn__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }

    .page-45winvn__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      background-color: #333;
      cursor: pointer;
      user-select: none;
      border-bottom: 1px solid #444;
      transition: background-color 0.3s ease;
    }

    .page-45winvn__faq-question:hover {
      background-color: #444;
    }

    .page-45winvn__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--page-45winvn-accent-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-45winvn__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-45winvn-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent span from blocking click event */
    }

    .page-45winvn__faq-item.active .page-45winvn__faq-toggle {
      transform: rotate(45deg);
    }

    .page-45winvn__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      background-color: #2a2a2a;
      color: rgba(255, 255, 255, 0.8);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-45winvn__faq-item.active .page-45winvn__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-45winvn__faq-answer p {
      margin: 0;
    }

    /* Call to Action Section */
    .page-45winvn__cta-section {
      padding: 60px 20px;
      text-align: center;
      background: linear-gradient(45deg, var(--page-45winvn-gradient-start), var(--page-45winvn-gradient-end));
      color: var(--page-45winvn-text-light);
    }

    .page-45winvn__cta-title {
      font-size: 2.5em;
      margin-bottom: 20px;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
    }

    .page-45winvn__cta-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
      color: rgba(255, 255, 255, 0.9);
    }

    .page-45winvn__cta-button {
      background-color: var(--page-45winvn-accent-color);
      color: var(--page-45winvn-text-dark);
      padding: 15px 35px;
      font-size: 1.3em;
      border-radius: 35px;
      font-weight: bold;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }

    .page-45winvn__cta-button:hover {
      background-color: #fdd85d;
      transform: translateY(-3px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-45winvn {
        padding-top: var(--header-offset, 80px); /* Adjust for mobile header */
      }
      .page-45winvn__hero-title {
        font-size: 2.5em;
      }
      .page-45winvn__hero-description {
        font-size: 1em;
      }
      .page-45winvn__title {
        font-size: 2em;
      }
      .page-45winvn__subtitle {
        font-size: 1.5em;
      }
      .page-45winvn__floating-buttons {
        gap: 10px;
        bottom: 15px;
      }
      .page-45winvn__floating-button {
        padding: 10px 20px;
        font-size: 1em;
      }

      .page-45winvn__game-grid,
      .page-45winvn__promotions-grid,
      .page-45winvn__feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-45winvn__game-image-wrapper,
      .page-45winvn__promo-image {
        height: 180px;
      }

      .page-45winvn__payment-grid,
      .page-45winvn__provider-grid {
        flex-direction: column;
        gap: 15px;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 0 15px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
      }
      .page-45winvn__payment-item,
      .page-45winvn__provider-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 10px 15px !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      .page-45winvn__payment-logo,
      .page-45winvn__provider-logo {
        max-width: 100px;
      }

      .page-45winvn__faq-question {
        padding: 15px 20px;
      }
      .page-45winvn__faq-question h3 {
        font-size: 1.1em;
      }
      .page-45winvn__faq-toggle {
        font-size: 1.5em;
      }
      .page-45winvn__faq-answer {
        padding: 0 20px;
      }
      .page-45winvn__faq-item.active .page-45winvn__faq-answer {
        padding: 15px 20px !important;
      }

      .page-45winvn__cta-title {
        font-size: 2em;
      }
      .page-45winvn__cta-description {
        font-size: 1em;
      }
      .page-45winvn__cta-button {
        padding: 12px 25px;
        font-size: 1.1em;
      }
    }

    @media (max-width: 480px) {
      .page-45winvn__hero-title {
        font-size: 2em;
      }
      .page-45winvn__title {
        font-size: 1.8em;
      }
      .page-45winvn__floating-buttons {
        flex-direction: column;
        width: 80%;
        left: 50%;
        transform: translateX(-50%);
        bottom: 10px;
      }
      .page-45winvn__floating-button {
        width: 100%;
        text-align: center;
        box-sizing: border-box;
      }
      .page-45winvn__cta-title {
        font-size: 1.8em;
      }
    }