:root {
      --page-58winapp-primary-color: #e44d26; /* Cam đậm */
      --page-58winapp-secondary-color: #333; /* Đen */
      --page-58winapp-accent-color: #ffcc00; /* Vàng */
      --page-58winapp-background-light: #f8f8f8; /* Nền sáng */
      --page-58winapp-text-dark: #222; /* Chữ tối */
      --page-58winapp-text-light: #fff; /* Chữ sáng */
      --page-58winapp-border-color: #ddd; /* Màu viền */
      --page-58winapp-shadow-color: rgba(0, 0, 0, 0.1); /* Màu bóng */
    }

    .page-58winapp {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-58winapp-text-dark);
      background-color: var(--page-58winapp-background-light);
      overflow-x: hidden;
    }

    .page-58winapp__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-58winapp__hero-section {
      position: relative;
      width: 100%;
      background-color: var(--page-58winapp-secondary-color);
      color: var(--page-58winapp-text-light);
      text-align: center;
      padding-top: 10px; /* Clearance for fixed header */
      box-sizing: border-box;
    }

    .page-58winapp__hero-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
      box-shadow: 0 4px 15px var(--page-58winapp-shadow-color);
      object-fit: cover;
    }

    .page-58winapp__hero-content {
      padding: 20px 15px 40px;
      position: relative;
      z-index: 1;
    }

    .page-58winapp__hero-content h1 {
      font-size: 2.5em;
      margin-bottom: 15px;
      color: var(--page-58winapp-accent-color);
      text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .page-58winapp__hero-content p {
      font-size: 1.1em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-58winapp__button {
      display: inline-block;
      background-color: var(--page-58winapp-primary-color);
      color: var(--page-58winapp-text-light);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      box-shadow: 0 4px 10px var(--page-58winapp-shadow-color);
    }

    .page-58winapp__button:hover {
      background-color: #c73c1c;
      transform: translateY(-2px);
    }

    .page-58winapp__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-58winapp-primary-color);
      color: var(--page-58winapp-text-light);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1em;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      transition: background-color 0.3s ease, transform 0.3s ease;
      animation: page-58winapp__pulse 2s infinite;
    }

    .page-58winapp__floating-button:hover {
      background-color: #c73c1c;
      transform: scale(1.05);
    }

    @keyframes page-58winapp__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    .page-58winapp__section-title {
      font-size: 2em;
      color: var(--page-58winapp-primary-color);
      text-align: center;
      margin-bottom: 40px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-58winapp__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--page-58winapp-accent-color);
      border-radius: 2px;
    }

    .page-58winapp__content-block {
      background-color: var(--page-58winapp-text-light);
      padding: 30px;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 10px var(--page-58winapp-shadow-color);
    }

    .page-58winapp__content-block h2 {
      color: var(--page-58winapp-secondary-color);
      font-size: 1.8em;
      margin-bottom: 20px;
      text-align: center;
    }

    .page-58winapp__content-block h3 {
      color: var(--page-58winapp-primary-color);
      font-size: 1.4em;
      margin-top: 25px;
      margin-bottom: 15px;
    }

    .page-58winapp__content-block p {
      margin-bottom: 15px;
    }

    .page-58winapp__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-bottom: 40px;
    }

    .page-58winapp__game-card,
    .page-58winapp__feature-card {
      background-color: var(--page-58winapp-text-light);
      border-radius: 10px;
      box-shadow: 0 4px 12px var(--page-58winapp-shadow-color);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-58winapp__game-card:hover,
    .page-58winapp__feature-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    }

    .page-58winapp__card-image-wrapper {
      width: 100%;
      max-width: 100%;
      height: 200px;
      overflow: hidden;
      display: flex;
      justify-content: center;
      align-items: center;
      background-color: #eee;
    }

    .page-58winapp__card-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .page-58winapp__game-card-content,
    .page-58winapp__feature-card-content {
      padding: 20px;
      flex-grow: 1;
    }

    .page-58winapp__game-card-content h3,
    .page-58winapp__feature-card-content h3 {
      font-size: 1.3em;
      color: var(--page-58winapp-secondary-color);
      margin-bottom: 10px;
    }

    .page-58winapp__game-card-content p,
    .page-58winapp__feature-card-content p {
      font-size: 0.95em;
      color: #666;
      margin-bottom: 20px;
    }

    .page-58winapp__game-card-link {
      display: inline-block;
      background-color: var(--page-58winapp-primary-color);
      color: var(--page-58winapp-text-light);
      padding: 10px 20px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 0.9em;
      transition: background-color 0.3s ease;
    }

    .page-58winapp__game-card-link:hover {
      background-color: #c73c1c;
    }

    .page-58winapp__step-list {
      list-style: none;
      padding: 0;
      margin-top: 20px;
    }

    .page-58winapp__step-item {
      display: flex;
      align-items: flex-start;
      margin-bottom: 20px;
      background-color: #f0f0f0;
      padding: 15px;
      border-radius: 8px;
      box-shadow: 0 1px 5px rgba(0,0,0,0.05);
    }

    .page-58winapp__step-number {
      background-color: var(--page-58winapp-primary-color);
      color: var(--page-58winapp-text-light);
      border-radius: 50%;
      width: 35px;
      height: 35px;
      display: flex;
      justify-content: center;
      align-items: center;
      font-weight: bold;
      font-size: 1.2em;
      flex-shrink: 0;
      margin-right: 15px;
    }

    .page-58winapp__step-content h4 {
      color: var(--page-58winapp-secondary-color);
      margin-top: 0;
      margin-bottom: 5px;
      font-size: 1.2em;
    }

    .page-58winapp__step-content p {
      margin: 0;
      font-size: 0.95em;
    }

    .page-58winapp__faq-section {
      margin-top: 50px;
    }

    .page-58winapp__faq-item {
      background-color: var(--page-58winapp-text-light);
      border: 1px solid var(--page-58winapp-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px var(--page-58winapp-shadow-color);
    }

    .page-58winapp__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: #f5f5f5;
      color: var(--page-58winapp-secondary-color);
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-58winapp__faq-question:hover {
      background-color: #eee;
    }

    .page-58winapp__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-58winapp-secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-58winapp__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent span from blocking click event */
      color: var(--page-58winapp-primary-color);
    }

    .page-58winapp__faq-item.active .page-58winapp__faq-toggle {
      transform: rotate(45deg);
    }

    .page-58winapp__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: #555;
    }

    .page-58winapp__faq-item.active .page-58winapp__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-58winapp__container {
        padding: 15px;
      }

      .page-58winapp__hero-section {
        padding-top: 10px; /* Ensure mobile header clearance */
      }

      .page-58winapp__hero-content h1 {
        font-size: 1.8em;
      }

      .page-58winapp__hero-content p {
        font-size: 1em;
      }

      .page-58winapp__button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-58winapp__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 10px 20px;
        font-size: 0.9em;
      }

      .page-58winapp__section-title {
        font-size: 1.7em;
        margin-bottom: 30px;
      }

      .page-58winapp__content-block {
        padding: 20px;
        margin-bottom: 20px;
      }

      .page-58winapp__content-block h2 {
        font-size: 1.5em;
      }

      .page-58winapp__content-block h3 {
        font-size: 1.2em;
      }

      .page-58winapp__grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-58winapp__card-image-wrapper {
        height: 180px;
      }

      .page-58winapp__game-card-content h3 {
        font-size: 1.1em;
      }

      .page-58winapp__step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
      }

      .page-58winapp__step-number {
        margin-right: 0;
        margin-bottom: 10px;
      }

      .page-58winapp__faq-question {
        padding: 12px 15px;
        font-size: 1em;
      }

      .page-58winapp__faq-question h3 {
        font-size: 1em;
      }

      .page-58winapp__faq-answer {
        padding: 15px !important; /* Force padding on mobile */
      }

      /* Image responsive optimization for mobile */
      .page-58winapp img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-58winapp .page-58winapp__card-image-wrapper,
      .page-58winapp .page-58winapp__image-container {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }