:root {
      --page-77betvip__primary-color: #e44d26; /* Cam đỏ */
      --page-77betvip__secondary-color: #f7b731; /* Vàng */
      --page-77betvip__dark-bg: #1a1a2e; /* Nền tối */
      --page-77betvip__light-bg: #f4f4f4; /* Nền sáng */
      --page-77betvip__text-color-light: #ffffff; /* Chữ trắng */
      --page-77betvip__text-color-dark: #333333; /* Chữ đen */
      --page-77betvip__border-color: #4a4a68; /* Viền */
      --page-77betvip__accent-color: #3f72af; /* Xanh nhấn */
    }

    .page-77betvip {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--page-77betvip__text-color-dark);
      background-color: var(--page-77betvip__light-bg);
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

    .page-77betvip__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: var(--page-77betvip__text-color-light);
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
      text-align: center;
    }

    .page-77betvip__section--dark {
      background-color: var(--page-77betvip__dark-bg);
      color: var(--page-77betvip__text-color-light);
    }

    .page-77betvip__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-77betvip__h1,
    .page-77betvip__h2,
    .page-77betvip__h3 {
      color: var(--page-77betvip__primary-color);
      margin-bottom: 20px;
      line-height: 1.2;
    }

    .page-77betvip__h1 {
      font-size: 2.8em;
      color: var(--page-77betvip__text-color-light);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-77betvip__h2 {
      font-size: 2.2em;
      color: var(--page-77betvip__primary-color);
      border-bottom: 3px solid var(--page-77betvip__secondary-color);
      padding-bottom: 10px;
      display: inline-block;
      margin-top: 40px;
    }

    .page-77betvip__h2--white {
      color: var(--page-77betvip__text-color-light);
      border-bottom-color: var(--page-77betvip__text-color-light);
    }

    .page-77betvip__h3 {
      font-size: 1.6em;
      color: var(--page-77betvip__accent-color);
      margin-top: 30px;
    }

    .page-77betvip__paragraph {
      font-size: 1.1em;
      margin-bottom: 15px;
      color: var(--page-77betvip__text-color-dark);
    }

    .page-77betvip__paragraph--white {
      color: var(--page-77betvip__text-color-light);
    }

    /* Hero Section */
    .page-77betvip__hero-section {
      position: relative;
      background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), var(--page-77betvip__dark-bg);
      color: var(--page-77betvip__text-color-light);
      padding: 120px 20px 80px; /* Adjusted padding-top for fixed header */
      text-align: center;
      background-size: cover;
      background-position: center;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 400px;
    }

    .page-77betvip__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
      max-width: 100%;
      height: auto;
    }

    .page-77betvip__hero-content {
      z-index: 1;
      max-width: 900px;
      margin: 0 auto;
    }

    /* Floating Login Button */
    .page-77betvip__floating-button-wrapper {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      text-align: center;
    }

    .page-77betvip__floating-button {
      display: inline-block;
      background-color: var(--page-77betvip__primary-color);
      color: var(--page-77betvip__text-color-light);
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
      transition: all 0.3s ease;
      animation: page-77betvip__pulse 2s infinite;
    }

    .page-77betvip__floating-button:hover {
      background-color: var(--page-77betvip__secondary-color);
      transform: translateY(-3px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    }

    @keyframes page-77betvip__pulse {
      0% {
        transform: scale(1);
      }
      50% {
        transform: scale(1.05);
      }
      100% {
        transform: scale(1);
      }
    }

    /* Game Grid */
    .page-77betvip__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-77betvip__game-card {
      background-color: var(--page-77betvip__light-bg);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .page-77betvip__game-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-77betvip__game-card-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 200px; /* Fixed height for consistency */
    }

    .page-77betvip__game-card-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }

    .page-77betvip__game-card:hover .page-77betvip__game-card-image {
      transform: scale(1.05);
    }

    .page-77betvip__game-card-content {
      padding: 20px 15px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      width: 100%;
    }

    .page-77betvip__game-card-title {
      font-size: 1.4em;
      color: var(--page-77betvip__primary-color);
      margin-bottom: 10px;
    }

    .page-77betvip__game-card-description {
      font-size: 0.95em;
      color: var(--page-77betvip__text-color-dark);
      margin-bottom: 15px;
      line-height: 1.5;
    }

    /* Guides Section */
    .page-77betvip__guide-item {
      display: flex;
      align-items: center;
      gap: 25px;
      margin-bottom: 40px;
      text-align: left;
    }

    .page-77betvip__guide-item:nth-child(even) {
      flex-direction: row-reverse;
    }

    .page-77betvip__guide-image-wrapper {
      flex: 1;
      min-width: 250px;
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }

    .page-77betvip__guide-image {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 8px;
      max-width: 100%;
    }

    .page-77betvip__guide-content {
      flex: 2;
    }

    .page-77betvip__guide-content .page-77betvip__h3 {
      margin-top: 0;
      margin-bottom: 15px;
    }

    /* Promotions */
    .page-77betvip__promotion-card {
      background: linear-gradient(135deg, var(--page-77betvip__primary-color), var(--page-77betvip__secondary-color));
      color: var(--page-77betvip__text-color-light);
      padding: 30px;
      border-radius: 10px;
      margin-top: 30px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
      text-align: center;
    }

    .page-77betvip__promotion-card .page-77betvip__h3 {
      color: var(--page-77betvip__text-color-light);
      font-size: 2em;
      margin-bottom: 15px;
    }

    .page-77betvip__promotion-card .page-77betvip__paragraph {
      color: var(--page-77betvip__text-color-light);
      font-size: 1.2em;
      margin-bottom: 25px;
    }

    .page-77betvip__promotion-button {
      background-color: var(--page-77betvip__accent-color);
      color: var(--page-77betvip__text-color-light);
      padding: 12px 25px;
      border-radius: 30px;
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-77betvip__promotion-button:hover {
      background-color: #315e8f;
      transform: scale(1.05);
    }

    /* Why Choose List */
    .page-77betvip__why-choose-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
      text-align: left;
    }

    .page-77betvip__why-choose-item {
      background-color: var(--page-77betvip__light-bg);
      padding: 25px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      border-left: 5px solid var(--page-77betvip__primary-color);
    }

    .page-77betvip__why-choose-item strong {
      display: block;
      font-size: 1.2em;
      color: var(--page-77betvip__primary-color);
      margin-bottom: 10px;
    }

    /* FAQ Section */
    .page-77betvip__faq-list {
      margin-top: 30px;
      text-align: left;
    }

    .page-77betvip__faq-item {
      background-color: var(--page-77betvip__light-bg);
      border: 1px solid var(--page-77betvip__border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-77betvip__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: var(--page-77betvip__dark-bg);
      color: var(--page-77betvip__text-color-light);
      cursor: pointer;
      font-size: 1.1em;
      font-weight: bold;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-77betvip__faq-question:hover {
      background-color: #2c2c46;
    }

    .page-77betvip__faq-question h3 {
      margin: 0;
      color: inherit;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-77betvip__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
      transition: transform 0.3s ease;
    }

    .page-77betvip__faq-item.active .page-77betvip__faq-toggle {
      transform: rotate(45deg);
    }

    .page-77betvip__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      background-color: var(--page-77betvip__light-bg);
      color: var(--page-77betvip__text-color-dark);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      font-size: 1em;
      text-align: justify;
    }

    .page-77betvip__faq-item.active .page-77betvip__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Call to Action */
    .page-77betvip__cta-section {
      background-color: var(--page-77betvip__primary-color);
      color: var(--page-77betvip__text-color-light);
      padding: 60px 20px;
      text-align: center;
      border-radius: 8px;
      margin-top: 40px;
    }

    .page-77betvip__cta-section .page-77betvip__h2 {
      color: var(--page-77betvip__text-color-light);
      border-bottom-color: var(--page-77betvip__text-color-light);
      margin-bottom: 25px;
    }

    .page-77betvip__cta-section .page-77betvip__paragraph {
      color: var(--page-77betvip__text-color-light);
      font-size: 1.2em;
      margin-bottom: 30px;
    }

    .page-77betvip__cta-button {
      background-color: var(--page-77betvip__secondary-color);
      color: var(--page-77betvip__dark-bg);
      padding: 18px 40px;
      border-radius: 50px;
      font-size: 1.3em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-77betvip__cta-button:hover {
      background-color: #ffc107;
      transform: translateY(-5px);
    }

    /* Responsive Design */
    @media (max-width: 992px) {
      .page-77betvip__h1 {
        font-size: 2.2em;
      }
      .page-77betvip__h2 {
        font-size: 1.8em;
      }
      .page-77betvip__h3 {
        font-size: 1.4em;
      }
      .page-77betvip__paragraph {
        font-size: 1em;
      }
      .page-77betvip__guide-item {
        flex-direction: column;
        text-align: center;
      }
      .page-77betvip__guide-item:nth-child(even) {
        flex-direction: column;
      }
      .page-77betvip__guide-content .page-77betvip__h3 {
        margin-top: 20px;
      }
    }

    @media (max-width: 768px) {
      .page-77betvip__hero-section {
        padding: 100px 15px 60px; /* Mobile padding-top for fixed header */
        min-height: 300px;
      }
      .page-77betvip__h1 {
        font-size: 1.8em;
      }
      .page-77betvip__h2 {
        font-size: 1.6em;
      }
      .page-77betvip__h3 {
        font-size: 1.2em;
      }
      .page-77betvip__section {
        padding: 30px 15px;
      }
      .page-77betvip__floating-button-wrapper {
        bottom: 15px;
        right: 15px;
      }
      .page-77betvip__floating-button {
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-77betvip__game-grid {
        grid-template-columns: 1fr;
      }
      .page-77betvip__game-card-image-wrapper {
        height: 180px;
      }
      .page-77betvip__guide-image-wrapper {
        min-width: unset;
      }
      .page-77betvip__promotion-card {
        padding: 20px;
      }
      .page-77betvip__promotion-card .page-77betvip__h3 {
        font-size: 1.6em;
      }
      .page-77betvip__promotion-card .page-77betvip__paragraph {
        font-size: 1em;
      }
      .page-77betvip__why-choose-list {
        grid-template-columns: 1fr;
      }
      .page-77betvip__faq-question {
        font-size: 1em;
        padding: 12px 15px;
      }
      .page-77betvip__faq-answer {
        padding: 15px 15px;
      }
      .page-77betvip__cta-section {
        padding: 40px 15px;
      }
      .page-77betvip__cta-section .page-77betvip__paragraph {
        font-size: 1em;
      }
      .page-77betvip__cta-button {
        padding: 15px 30px;
        font-size: 1.1em;
      }

      /* Image responsive optimization for mobile */
      .page-77betvip img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-77betvip__hero-image,
      .page-77betvip__game-card-image,
      .page-77betvip__guide-image {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-77betvip__game-card-image-wrapper,
      .page-77betvip__guide-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }