:root {
      --primary-color: #e44d26; /* Một màu cam đỏ nổi bật */
      --secondary-color: #333; /* Màu chữ chính */
      --background-color: #f5f5f5; /* Nền nhẹ */
      --dark-background: #222; /* Nền tối cho footer/hero */
      --text-light: #fff; /* Chữ sáng trên nền tối */
      --accent-color: #007bff; /* Màu nhấn cho liên kết/button */
      --border-color: #ddd;
      --shadow-light: rgba(0, 0, 0, 0.1);
      --spacing-unit: 1rem;
    }

    .page-k-o-nh-c-i-s-1 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--secondary-color);
      background-color: var(--background-color);
    }

    /* Fallback for header offset if body padding is not applied by shared.css */
    /* .page-k-o-nh-c-i-s-1 {
      padding-top: var(--header-offset, 122px);
    } */

    .page-k-o-nh-c-i-s-1__hero-section {
      background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('[GALLERY:hero:1920x1080:betting,stadium,sports]') no-repeat center center/cover;
      color: var(--text-light);
      text-align: center;
      padding: calc(var(--spacing-unit) * 5) var(--spacing-unit) calc(var(--spacing-unit) * 3);
      padding-top: 10px; /* Small decorative top padding, assuming body already has --header-offset */
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 500px;
      position: relative;
    }

    .page-k-o-nh-c-i-s-1__hero-title {
      font-size: 2.8rem;
      margin-bottom: var(--spacing-unit);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      color: var(--primary-color);
      line-height: 1.2;
    }

    .page-k-o-nh-c-i-s-1__hero-subtitle {
      font-size: 1.4rem;
      margin-bottom: calc(var(--spacing-unit) * 2);
      max-width: 800px;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }

    .page-k-o-nh-c-i-s-1__button {
      background-color: var(--primary-color);
      color: var(--text-light);
      padding: var(--spacing-unit) calc(var(--spacing-unit) * 2);
      border: none;
      border-radius: 5px;
      font-size: 1.1rem;
      cursor: pointer;
      transition: background-color 0.3s ease;
      text-decoration: none;
      display: inline-block;
      text-align: center;
      margin-top: var(--spacing-unit);
    }

    .page-k-o-nh-c-i-s-1__button:hover {
      background-color: #c93a1c;
    }

    .page-k-o-nh-c-i-s-1__section {
      padding: calc(var(--spacing-unit) * 3) var(--spacing-unit);
      max-width: 1200px;
      margin: 0 auto;
    }

    .page-k-o-nh-c-i-s-1__section-title {
      text-align: center;
      font-size: 2rem;
      margin-bottom: calc(var(--spacing-unit) * 2);
      color: var(--primary-color);
    }

    .page-k-o-nh-c-i-s-1__text-content {
      text-align: center;
      margin-bottom: calc(var(--spacing-unit) * 2);
      font-size: 1.1rem;
    }

    .page-k-o-nh-c-i-s-1__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: calc(var(--spacing-unit) * 2);
      margin-top: calc(var(--spacing-unit) * 2);
    }

    .page-k-o-nh-c-i-s-1__feature-card {
      background-color: var(--text-light);
      border-radius: 8px;
      box-shadow: 0 4px 12px var(--shadow-light);
      padding: calc(var(--spacing-unit) * 2);
      text-align: center;
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .page-k-o-nh-c-i-s-1__feature-card:hover {
      transform: translateY(-5px);
    }

    .page-k-o-nh-c-i-s-1__feature-icon {
      width: 80px; /* Min size 200x200px, but visually scaled down */
      height: 80px; /* Min size 200x200px, but visually scaled down */
      object-fit: contain;
      margin-bottom: var(--spacing-unit);
    }

    .page-k-o-nh-c-i-s-1__feature-title {
      font-size: 1.3rem;
      color: var(--primary-color);
      margin-bottom: var(--spacing-unit);
    }

    .page-k-o-nh-c-i-s-1__feature-description {
      font-size: 0.95rem;
      color: var(--secondary-color);
    }

    .page-k-o-nh-c-i-s-1__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: calc(var(--spacing-unit) * 1.5);
      margin-top: calc(var(--spacing-unit) * 2);
    }

    .page-k-o-nh-c-i-s-1__category-card {
      background-color: var(--dark-background);
      color: var(--text-light);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-k-o-nh-c-i-s-1__category-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
    }

    .page-k-o-nh-c-i-s-1__category-image-wrapper {
      width: 100%;
      height: 180px;
      overflow: hidden;
    }

    .page-k-o-nh-c-i-s-1__category-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .page-k-o-nh-c-i-s-1__category-card:hover .page-k-o-nh-c-i-s-1__category-image {
      transform: scale(1.05);
    }

    .page-k-o-nh-c-i-s-1__category-content {
      padding: var(--spacing-unit) calc(var(--spacing-unit) * 1.5);
    }

    .page-k-o-nh-c-i-s-1__category-title {
      font-size: 1.2rem;
      margin-bottom: 0.5rem;
      color: var(--primary-color);
    }

    .page-k-o-nh-c-i-s-1__category-description {
      font-size: 0.9rem;
      color: #ccc;
    }

    .page-k-o-nh-c-i-s-1__promo-banner {
      background: linear-gradient(90deg, var(--primary-color), #f76c4e);
      color: var(--text-light);
      text-align: center;
      padding: calc(var(--spacing-unit) * 3) var(--spacing-unit);
      margin-top: calc(var(--spacing-unit) * 3);
      border-radius: 8px;
    }

    .page-k-o-nh-c-i-s-1__promo-title {
      font-size: 2rem;
      margin-bottom: var(--spacing-unit);
    }

    .page-k-o-nh-c-i-s-1__promo-text {
      font-size: 1.2rem;
      margin-bottom: calc(var(--spacing-unit) * 1.5);
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-k-o-nh-c-i-s-1__payment-providers-grid,
    .page-k-o-nh-c-i-s-1__game-providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: var(--spacing-unit);
      margin-top: calc(var(--spacing-unit) * 2);
      justify-items: center;
      align-items: center;
    }

    .page-k-o-nh-c-i-s-1__provider-logo {
      width: 100%;
      max-width: 150px;
      height: auto;
      object-fit: contain;
      padding: 10px;
      background-color: var(--text-light);
      border-radius: 5px;
      box-shadow: 0 2px 5px var(--shadow-light);
    }

    .page-k-o-nh-c-i-s-1__faq-section {
      background-color: var(--text-light);
      border-radius: 8px;
      box-shadow: 0 4px 12px var(--shadow-light);
      padding: calc(var(--spacing-unit) * 2);
      margin-top: calc(var(--spacing-unit) * 3);
    }

    .page-k-o-nh-c-i-s-1__faq-item {
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 10px;
    }

    .page-k-o-nh-c-i-s-1__faq-item:last-child {
      border-bottom: none;
      margin-bottom: 0;
    }

    .page-k-o-nh-c-i-s-1__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px;
      cursor: pointer;
      user-select: none;
      font-weight: bold;
      color: var(--secondary-color);
      transition: background-color 0.3s ease;
    }

    .page-k-o-nh-c-i-s-1__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-k-o-nh-c-i-s-1__faq-question h3 {
      margin: 0;
      font-size: 1.1rem;
      color: var(--primary-color);
      pointer-events: none; /* Prevent h3 from interfering with click event */
    }

    .page-k-o-nh-c-i-s-1__faq-toggle {
      font-size: 1.5rem;
      line-height: 1;
      margin-left: 15px;
      pointer-events: none; /* Prevent toggle icon from interfering with click event */
    }

    .page-k-o-nh-c-i-s-1__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: var(--secondary-color);
    }

    .page-k-o-nh-c-i-s-1__faq-item.active .page-k-o-nh-c-i-s-1__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-k-o-nh-c-i-s-1__faq-item.active .page-k-o-nh-c-i-s-1__faq-toggle {
      content: "−"; /* Changed by JS */
    }

    .page-k-o-nh-c-i-s-1__cta-section {
      background-color: var(--dark-background);
      color: var(--text-light);
      text-align: center;
      padding: calc(var(--spacing-unit) * 4) var(--spacing-unit);
      margin-top: calc(var(--spacing-unit) * 3);
    }

    .page-k-o-nh-c-i-s-1__cta-title {
      font-size: 2.2rem;
      margin-bottom: var(--spacing-unit);
      color: var(--primary-color);
    }

    .page-k-o-nh-c-i-s-1__cta-description {
      font-size: 1.2rem;
      margin-bottom: calc(var(--spacing-unit) * 2);
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Responsive adjustments */
    @media (max-width: 1024px) {
      .page-k-o-nh-c-i-s-1__hero-title {
        font-size: 2.5rem;
      }
      .page-k-o-nh-c-i-s-1__hero-subtitle {
        font-size: 1.2rem;
      }
      .page-k-o-nh-c-i-s-1__section-title {
        font-size: 1.8rem;
      }
      .page-k-o-nh-c-i-s-1__promo-title {
        font-size: 1.8rem;
      }
      .page-k-o-nh-c-i-s-1__cta-title {
        font-size: 2rem;
      }
    }

    @media (max-width: 768px) {
      .page-k-o-nh-c-i-s-1__hero-section {
        min-height: 400px;
        padding: calc(var(--spacing-unit) * 4) var(--spacing-unit) calc(var(--spacing-unit) * 2);
      }
      .page-k-o-nh-c-i-s-1__hero-title {
        font-size: 2rem;
      }
      .page-k-o-nh-c-i-s-1__hero-subtitle {
        font-size: 1rem;
      }
      .page-k-o-nh-c-i-s-1__section {
        padding: calc(var(--spacing-unit) * 2) var(--spacing-unit);
      }
      .page-k-o-nh-c-i-s-1__section-title {
        font-size: 1.6rem;
      }
      .page-k-o-nh-c-i-s-1__text-content {
        font-size: 1rem;
      }
      .page-k-o-nh-c-i-s-1__feature-card,
      .page-k-o-nh-c-i-s-1__category-card {
        box-sizing: border-box !important;
        width: 100% !important;
        max-width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }
      .page-k-o-nh-c-i-s-1__features-grid,
      .page-k-o-nh-c-i-s-1__game-categories {
        grid-template-columns: 1fr;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
      }
      .page-k-o-nh-c-i-s-1__promo-title {
        font-size: 1.6rem;
      }
      .page-k-o-nh-c-i-s-1__promo-text {
        font-size: 1rem;
      }
      .page-k-o-nh-c-i-s-1__cta-title {
        font-size: 1.8rem;
      }
      .page-k-o-nh-c-i-s-1__cta-description {
        font-size: 1rem;
      }
      .page-k-o-nh-c-i-s-1__faq-question h3 {
        font-size: 1rem;
      }
      .page-k-o-nh-c-i-s-1__faq-answer {
        padding: 0 10px;
      }
      .page-k-o-nh-c-i-s-1__faq-item.active .page-k-o-nh-c-i-s-1__faq-answer {
        padding: 15px 10px !important;
      }
      /* Ensure all images are responsive */
      .page-k-o-nh-c-i-s-1 img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-k-o-nh-c-i-s-1__category-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-k-o-nh-c-i-s-1__hero-title {
        font-size: 1.8rem;
      }
      .page-k-o-nh-c-i-s-1__hero-subtitle {
        font-size: 0.9rem;
      }
      .page-k-o-nh-c-i-s-1__button {
        font-size: 1rem;
        padding: 0.8rem 1.5rem;
      }
    }