:root {
      --primary-color: #e53935; /* Đỏ rực */
      --secondary-color: #ffc107; /* Vàng hổ phách */
      --dark-background: #1a1a2e; /* Nền tối đậm */
      --light-background: #2a2a4a; /* Nền tối nhạt */
      --text-color: #f0f0f0; /* Màu chữ sáng */
      --accent-color: #4CAF50; /* Xanh lá cây */
      --border-color: #444466;
      --button-hover-color: #ffeb3b;
      --button-text-color: #1a1a2e;
      --shadow-color: rgba(0, 0, 0, 0.4);
      --gradient-start: #2a003a;
      --gradient-end: #000000;
      --header-offset: 122px; /* Default offset, overridden by shared.css if present */
    }

    /* Base styles for the page */
    .page-5-vin {
      font-family: 'Roboto', sans-serif; /* Sử dụng font phổ biến */
      color: var(--text-color);
      background-color: var(--dark-background);
      line-height: 1.6;
      padding-top: var(--header-offset, 122px); /* Fallback for header offset */
      position: relative;
      overflow-x: hidden;
    }

    .page-5-vin__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-5-vin__section {
      padding: 60px 20px;
      margin-bottom: 20px;
      background-color: var(--light-background);
      border-radius: 10px;
      box-shadow: 0 4px 15px var(--shadow-color);
      text-align: center;
      box-sizing: border-box;
    }

    .page-5-vin__section--dark {
      background-color: var(--dark-background);
      color: var(--text-color);
    }

    .page-5-vin__header {
      font-size: 2.8em;
      color: var(--primary-color);
      margin-bottom: 20px;
      text-transform: uppercase;
      font-weight: 700;
      line-height: 1.2;
    }

    .page-5-vin__subheader {
      font-size: 2em;
      color: var(--secondary-color);
      margin-bottom: 25px;
      font-weight: 600;
      line-height: 1.3;
    }

    .page-5-vin__paragraph {
      font-size: 1.1em;
      margin-bottom: 15px;
      color: var(--text-color);
    }

    /* Hero Section */
    .page-5-vin__hero-section {
      background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
      padding: 80px 20px 60px;
      text-align: center;
      position: relative;
      overflow: hidden;
      border-radius: 0; /* No border-radius for hero */
      box-shadow: none;
      margin-bottom: 0;
      padding-top: 10px; /* Small decorative top padding */
    }

    .page-5-vin__hero-title {
      font-size: 3.5em;
      color: var(--secondary-color);
      margin-bottom: 20px;
      text-shadow: 2px 2px 5px var(--shadow-color);
      font-weight: 900;
    }

    .page-5-vin__hero-subtitle {
      font-size: 1.8em;
      color: var(--text-color);
      margin-bottom: 30px;
      font-weight: 500;
    }

    .page-5-vin__hero-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .page-5-vin__button {
      background-color: var(--primary-color);
      color: var(--button-text-color);
      padding: 15px 30px;
      border: none;
      border-radius: 30px;
      font-size: 1.2em;
      font-weight: 700;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
      text-decoration: none;
      display: inline-block;
      box-shadow: 0 5px 15px rgba(229, 57, 53, 0.4);
      white-space: nowrap;
    }

    .page-5-vin__button:hover {
      background-color: var(--button-hover-color);
      transform: translateY(-3px);
      box-shadow: 0 8px 20px rgba(255, 193, 7, 0.6);
      color: var(--dark-background);
    }

    .page-5-vin__button--secondary {
      background-color: var(--accent-color);
      box-shadow: 0 5px 15px rgba(76, 175, 80, 0.4);
    }

    .page-5-vin__button--secondary:hover {
      background-color: #66bb6a; /* Lighter green */
      box-shadow: 0 8px 20px rgba(76, 175, 80, 0.6);
    }

    /* Floating buttons */
    .page-5-vin__floating-buttons {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 15px;
      z-index: 1000;
    }

    .page-5-vin__floating-button {
      background-color: var(--primary-color);
      color: var(--button-text-color);
      padding: 12px 25px;
      border-radius: 25px;
      font-size: 1.1em;
      font-weight: 700;
      box-shadow: 0 4px 10px var(--shadow-color);
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      white-space: nowrap;
    }

    .page-5-vin__floating-button:hover {
      background-color: var(--button-hover-color);
      transform: translateY(-2px);
      color: var(--dark-background);
    }

    /* Game Categories Section */
    .page-5-vin__categories-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-5-vin__category-card {
      background-color: var(--dark-background);
      border: 1px solid var(--border-color);
      border-radius: 10px;
      padding: 25px;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
      box-sizing: border-box;
    }

    .page-5-vin__category-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 25px rgba(255, 193, 7, 0.3);
      border-color: var(--secondary-color);
    }

    .page-5-vin__category-image {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      margin-bottom: 20px;
      display: block;
      margin-left: auto;
      margin-right: auto;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-5-vin__category-title {
      font-size: 1.6em;
      color: var(--primary-color);
      margin-bottom: 15px;
      font-weight: 700;
    }

    .page-5-vin__category-description {
      font-size: 1em;
      color: var(--text-color);
    }

    /* Promotion Section */
    .page-5-vin__promo-card {
      background: linear-gradient(45deg, #3a002a 0%, #000000 100%);
      border-radius: 10px;
      padding: 30px;
      margin-top: 30px;
      text-align: left;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
      border: 1px solid var(--primary-color);
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .page-5-vin__promo-image {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      margin-bottom: 20px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-5-vin__promo-title {
      font-size: 2em;
      color: var(--secondary-color);
      margin-bottom: 15px;
      font-weight: 700;
      text-align: center;
    }

    .page-5-vin__promo-description {
      font-size: 1.1em;
      color: var(--text-color);
      margin-bottom: 20px;
      text-align: center;
    }

    /* Benefits Section */
    .page-5-vin__benefits-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-5-vin__benefit-card {
      background-color: var(--dark-background);
      border: 1px solid var(--border-color);
      border-radius: 10px;
      padding: 25px;
      text-align: center;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
      box-sizing: border-box;
    }

    .page-5-vin__benefit-icon {
      margin-bottom: 15px;
      display: block;
      margin-left: auto;
      margin-right: auto;
    }

    .page-5-vin__benefit-title {
      font-size: 1.5em;
      color: var(--accent-color);
      margin-bottom: 10px;
      font-weight: 600;
    }

    .page-5-vin__benefit-description {
      font-size: 1em;
      color: var(--text-color);
    }

    /* FAQ Section */
    .page-5-vin__faq-list {
      margin-top: 40px;
      text-align: left;
    }

    .page-5-vin__faq-item {
      background-color: var(--dark-background);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      box-sizing: border-box;
    }

    .page-5-vin__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 25px;
      background-color: var(--light-background);
      cursor: pointer;
      font-size: 1.2em;
      font-weight: 600;
      color: var(--secondary-color);
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-5-vin__faq-question h3 {
      margin: 0;
      color: var(--secondary-color);
      font-size: 1em; /* Adjust to fit parent font size */
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-5-vin__faq-question:hover {
      background-color: #3b3b5c; /* Slightly lighter hover */
    }

    .page-5-vin__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-5-vin__faq-item.active .page-5-vin__faq-toggle {
      transform: rotate(45deg); /* Plus to X for active */
    }

    .page-5-vin__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: var(--text-color);
      font-size: 1em;
    }

    .page-5-vin__faq-item.active .page-5-vin__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    /* Payment/Provider Logos Section */
    .page-5-vin__partners-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); /* Adjusted for more columns */
      gap: 20px;
      margin-top: 40px;
      align-items: center;
      justify-content: center;
    }

    .page-5-vin__partner-logo-wrapper {
      background-color: #2c2c4c;
      padding: 15px;
      border-radius: 8px;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100px; /* Fixed height for consistency */
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      box-sizing: border-box;
    }

    .page-5-vin__partner-logo-wrapper:hover {
      transform: translateY(-5px);
      box-shadow: 0 5px 15px rgba(255, 193, 7, 0.3);
    }

    .page-5-vin__partner-logo {
      max-width: 100%;
      max-height: 70px; /* Max height within wrapper */
      height: auto;
      object-fit: contain;
      display: block;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-5-vin__hero-title {
        font-size: 2.5em;
      }

      .page-5-vin__hero-subtitle {
        font-size: 1.4em;
      }

      .page-5-vin__button {
        padding: 12px 25px;
        font-size: 1.1em;
      }

      .page-5-vin__header {
        font-size: 2em;
      }

      .page-5-vin__subheader {
        font-size: 1.6em;
      }

      .page-5-vin__section {
        padding: 40px 15px;
      }

      .page-5-vin__floating-buttons {
        flex-direction: column;
        bottom: 15px;
        gap: 10px;
      }

      .page-5-vin__floating-button {
        padding: 10px 20px;
        font-size: 1em;
        width: 180px; /* Fixed width for mobile floating buttons */
        text-align: center;
      }

      .page-5-vin__categories-grid,
      .page-5-vin__benefits-grid,
      .page-5-vin__partners-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-5-vin__category-card,
      .page-5-vin__benefit-card,
      .page-5-vin__partner-logo-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-5-vin__faq-question {
        padding: 15px 20px;
        font-size: 1.1em;
      }

      .page-5-vin__faq-question h3 {
        font-size: 1em;
      }

      .page-5-vin__faq-answer {
        padding: 0 20px;
      }

      .page-5-vin__faq-item.active .page-5-vin__faq-answer {
        padding: 15px 20px !important;
      }

      /* Image responsive for mobile */
      .page-5-vin__category-image,
      .page-5-vin__promo-image,
      .page-5-vin__benefit-icon,
      .page-5-vin__partner-logo {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }

      .page-5-vin__promo-title {
        font-size: 1.6em;
      }

      .page-5-vin__promo-description {
        font-size: 1em;
      }
    }
    
    @media (max-width: 480px) {
      .page-5-vin__hero-title {
        font-size: 2em;
      }
      .page-5-vin__hero-subtitle {
        font-size: 1.2em;
      }
      .page-5-vin__button {
        padding: 10px 20px;
        font-size: 1em;
      }
      .page-5-vin__header {
        font-size: 1.8em;
      }
      .page-5-vin__subheader {
        font-size: 1.4em;
      }
    }