:root {
      --page-linksunwin-primary-color: #f39c12; /* Vàng cam */
      --page-linksunwin-secondary-color: #2c3e50; /* Xám xanh đậm */
      --page-linksunwin-accent-color: #e74c3c; /* Đỏ */
      --page-linksunwin-text-light: #ecf0f1; /* Trắng xám */
      --page-linksunwin-text-dark: #34495e; /* Xám đậm */
      --page-linksunwin-bg-dark: #1a242f; /* Nền rất đậm */
      --page-linksunwin-bg-light: #f7f9fb; /* Nền rất nhạt */
    }

    /* Base styles for the page content */
    .page-linksunwin {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--page-linksunwin-text-dark);
      background-color: var(--page-linksunwin-bg-light);
      padding: 20px 0;
      overflow-x: hidden;
    }

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

    .page-linksunwin__section {
      padding: 40px 0;
      margin-bottom: 20px;
      border-radius: 8px;
      background-color: #ffffff;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    }

    .page-linksunwin__section--dark {
      background-color: var(--page-linksunwin-secondary-color);
      color: var(--page-linksunwin-text-light);
    }

    .page-linksunwin__section-title {
      font-size: 2.5em;
      color: var(--page-linksunwin-primary-color);
      text-align: center;
      margin-bottom: 30px;
      font-weight: 700;
      position: relative;
      padding-bottom: 10px;
    }

    .page-linksunwin__section-title--dark {
      color: var(--page-linksunwin-text-light);
    }

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

    .page-linksunwin__section-title--dark::after {
      background-color: var(--page-linksunwin-accent-color);
    }

    /* Hero Section */
    .page-linksunwin__hero-section {
      text-align: center;
      padding: 10px 0 60px 0; /* Adjusted padding-top for fixed header */
      background: linear-gradient(135deg, var(--page-linksunwin-secondary-color) 0%, #34495e 100%);
      color: var(--page-linksunwin-text-light);
      margin-bottom: 30px;
      position: relative;
      overflow: hidden;
      border-radius: 0 0 15px 15px;
    }

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

    .page-linksunwin__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    }

    .page-linksunwin__hero-title {
      font-size: 3em;
      margin-bottom: 15px;
      font-weight: 800;
      color: var(--page-linksunwin-primary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
    }

    .page-linksunwin__hero-subtitle {
      font-size: 1.5em;
      margin-bottom: 30px;
      font-weight: 400;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      color: var(--page-linksunwin-text-light);
    }

    .page-linksunwin__cta-button {
      display: inline-block;
      background-color: var(--page-linksunwin-primary-color);
      color: var(--page-linksunwin-text-dark);
      padding: 15px 35px;
      border-radius: 50px;
      text-decoration: none;
      font-size: 1.2em;
      font-weight: 700;
      transition: all 0.3s ease;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
      border: none;
      cursor: pointer;
    }

    .page-linksunwin__cta-button:hover {
      background-color: #e67e22; /* Slightly darker orange */
      transform: translateY(-3px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    }

    /* Floating Login Button (Mobile Specific) */
    .page-linksunwin__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-linksunwin-accent-color);
      color: var(--page-linksunwin-text-light);
      padding: 12px 20px;
      border-radius: 50px;
      text-decoration: none;
      font-size: 1.1em;
      font-weight: 700;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      display: none; /* Hidden by default, shown on mobile */
      animation: pulse 1.5s infinite;
    }

    .page-linksunwin__floating-button:hover {
      background-color: #c0392b; /* Darker red */
      transform: scale(1.05);
    }

    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* Intro Section */
    .page-linksunwin__intro-text {
      font-size: 1.1em;
      text-align: justify;
      max-width: 800px;
      margin: 0 auto 20px auto;
    }

    .page-linksunwin__intro-highlights {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 30px;
    }

    .page-linksunwin__highlight-item {
      flex: 1 1 calc(33% - 40px);
      min-width: 280px;
      background-color: var(--page-linksunwin-bg-light);
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid #eee;
    }

    .page-linksunwin__highlight-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    }

    .page-linksunwin__highlight-item h3 {
      font-size: 1.4em;
      color: var(--page-linksunwin-secondary-color);
      margin-bottom: 15px;
    }

    .page-linksunwin__highlight-item p {
      color: var(--page-linksunwin-text-dark);
    }

    /* Access Guide */
    .page-linksunwin__guide-steps {
      display: flex;
      flex-direction: column;
      gap: 25px;
      max-width: 900px;
      margin: 0 auto;
    }

    .page-linksunwin__guide-step {
      display: flex;
      align-items: flex-start;
      gap: 20px;
      background-color: var(--page-linksunwin-bg-light);
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
      border-left: 5px solid var(--page-linksunwin-primary-color);
    }

    .page-linksunwin__step-number {
      font-size: 2em;
      font-weight: 700;
      color: var(--page-linksunwin-primary-color);
      flex-shrink: 0;
      width: 40px;
      text-align: center;
    }

    .page-linksunwin__step-content h3 {
      font-size: 1.5em;
      color: var(--page-linksunwin-secondary-color);
      margin-top: 0;
      margin-bottom: 10px;
    }

    .page-linksunwin__step-content p {
      color: var(--page-linksunwin-text-dark);
    }

    .page-linksunwin__step-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-top: 15px;
    }

    .page-linksunwin__step-image {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    /* Game Categories */
    .page-linksunwin__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-linksunwin__game-card {
      background-color: var(--page-linksunwin-bg-dark);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      color: var(--page-linksunwin-text-light);
      text-align: center;
      position: relative;
    }

    .page-linksunwin__game-card:hover {
      transform: translateY(-7px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    }

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

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

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

    .page-linksunwin__game-card-content {
      padding: 20px;
    }

    .page-linksunwin__game-card-title {
      font-size: 1.5em;
      margin-bottom: 10px;
      color: var(--page-linksunwin-primary-color);
    }

    .page-linksunwin__game-card-description {
      font-size: 0.95em;
      color: var(--page-linksunwin-text-light);
      margin-bottom: 20px;
    }

    .page-linksunwin__game-card-button {
      display: inline-block;
      background-color: var(--page-linksunwin-primary-color);
      color: var(--page-linksunwin-text-dark);
      padding: 10px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: 600;
      transition: background-color 0.3s ease;
    }

    .page-linksunwin__game-card-button:hover {
      background-color: #e67e22;
    }

    .page-linksunwin__game-supplier-logos {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 40px;
      padding: 20px;
      background-color: var(--page-linksunwin-bg-dark);
      border-radius: 10px;
    }

    .page-linksunwin__supplier-logo-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      flex: 0 0 auto; /* Prevent stretching */
      width: 120px; /* Fixed width for logos */
      height: 80px; /* Fixed height for logos */
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-linksunwin__supplier-logo {
      max-width: 100%;
      max-height: 100%;
      object-fit: contain;
      filter: grayscale(80%);
      opacity: 0.7;
      transition: filter 0.3s ease, opacity 0.3s ease;
    }

    .page-linksunwin__supplier-logo:hover {
      filter: grayscale(0%);
      opacity: 1;
    }

    /* Promotions Section */
    .page-linksunwin__promo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-linksunwin__promo-card {
      background-color: #ffffff;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid #eee;
    }

    .page-linksunwin__promo-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-linksunwin__promo-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 220px;
    }

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

    .page-linksunwin__promo-content {
      padding: 20px;
      text-align: center;
    }

    .page-linksunwin__promo-title {
      font-size: 1.6em;
      color: var(--page-linksunwin-secondary-color);
      margin-bottom: 10px;
    }

    .page-linksunwin__promo-description {
      font-size: 1em;
      color: var(--page-linksunwin-text-dark);
      margin-bottom: 20px;
    }

    /* FAQ Section */
    .page-linksunwin__faq-list {
      max-width: 900px;
      margin: 0 auto;
    }

    .page-linksunwin__faq-item {
      background-color: var(--page-linksunwin-bg-light);
      margin-bottom: 15px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      border: 1px solid #e0e0e0;
      overflow: hidden;
    }

    .page-linksunwin__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      background-color: #ffffff;
      color: var(--page-linksunwin-secondary-color);
      cursor: pointer;
      font-size: 1.15em;
      font-weight: 600;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-linksunwin__faq-question:hover {
      background-color: #f5f5f5;
    }

    .page-linksunwin__faq-question h3 {
      margin: 0;
      font-size: 1.15em;
      color: var(--page-linksunwin-secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-linksunwin__faq-toggle {
      font-size: 1.8em;
      line-height: 1;
      font-weight: 300;
      color: var(--page-linksunwin-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

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

    .page-linksunwin__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      background-color: #fdfdfd;
      color: var(--page-linksunwin-text-dark);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

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

    .page-linksunwin__faq-answer p {
      margin-top: 0;
      margin-bottom: 10px;
    }

    .page-linksunwin__faq-answer p:last-child {
      margin-bottom: 0;
    }

    /* CTA Section */
    .page-linksunwin__cta-section {
      text-align: center;
      background: var(--page-linksunwin-primary-color);
      color: var(--page-linksunwin-text-dark);
      padding: 60px 0;
      border-radius: 15px;
    }

    .page-linksunwin__cta-section h2 {
      font-size: 2.5em;
      margin-bottom: 20px;
      color: var(--page-linksunwin-text-dark);
    }

    .page-linksunwin__cta-section p {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Responsive adjustments */
    @media (max-width: 1024px) {
      .page-linksunwin__hero-title {
        font-size: 2.5em;
      }
      .page-linksunwin__hero-subtitle {
        font-size: 1.3em;
      }
      .page-linksunwin__section-title {
        font-size: 2em;
      }
      .page-linksunwin__highlight-item {
        flex: 1 1 calc(50% - 30px);
      }
      .page-linksunwin__game-grid, .page-linksunwin__promo-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      }
    }

    @media (max-width: 768px) {
      .page-linksunwin {
        padding: 0; /* Remove side padding for full width on mobile */
      }
      .page-linksunwin__container {
        padding: 0 10px;
      }
      .page-linksunwin__hero-section {
        padding-top: 10px !important; /* Ensure content is not hidden by fixed header */
        padding-bottom: 40px;
        border-radius: 0;
      }
      .page-linksunwin__hero-title {
        font-size: 2em;
      }
      .page-linksunwin__hero-subtitle {
        font-size: 1.1em;
      }
      .page-linksunwin__cta-button {
        padding: 12px 25px;
        font-size: 1.1em;
      }
      .page-linksunwin__section {
        padding: 30px 0;
        margin-bottom: 15px;
        border-radius: 0;
        box-shadow: none;
      }
      .page-linksunwin__section-title {
        font-size: 1.8em;
        margin-bottom: 25px;
      }
      .page-linksunwin__intro-text {
        font-size: 1em;
      }
      .page-linksunwin__highlight-item {
        flex: 1 1 100%;
        margin-bottom: 15px;
      }
      .page-linksunwin__guide-step {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 20px;
      }
      .page-linksunwin__step-number {
        margin-bottom: 10px;
      }
      .page-linksunwin__game-grid, .page-linksunwin__promo-grid {
        grid-template-columns: 1fr;
      }
      .page-linksunwin__game-card-image-wrapper, .page-linksunwin__promo-image-wrapper {
        height: 180px;
      }
      .page-linksunwin__game-supplier-logos {
        gap: 10px;
        padding: 15px;
      }
      .page-linksunwin__supplier-logo-wrapper {
        width: 100px;
        height: 60px;
      }
      .page-linksunwin__faq-question {
        font-size: 1em;
        padding: 15px 20px;
      }
      .page-linksunwin__faq-question h3 {
        font-size: 1em;
      }
      .page-linksunwin__faq-toggle {
        font-size: 1.5em;
      }
      .page-linksunwin__faq-answer {
        padding: 0 20px;
      }
      .page-linksunwin__faq-item.active .page-linksunwin__faq-answer {
        padding: 15px 20px !important;
      }
      .page-linksunwin__cta-section {
        padding: 40px 0;
        border-radius: 0;
      }
      .page-linksunwin__cta-section h2 {
        font-size: 1.8em;
      }
      .page-linksunwin__cta-section p {
        font-size: 1em;
      }
      .page-linksunwin__floating-button {
        display: block; /* Show floating button on mobile */
      }
      .page-linksunwin img { /* Mobile image responsive optimization */
        max-width: 100% !important;
        height: auto !important;
      }
      .page-linksunwin__hero-image-wrapper,
      .page-linksunwin__step-image-wrapper,
      .page-linksunwin__game-card-image-wrapper,
      .page-linksunwin__promo-image-wrapper,
      .page-linksunwin__supplier-logo-wrapper { /* Mobile image container responsive optimization */
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }