:root {
      --primary-color: #FFD700; /* Vàng kim */
      --secondary-color: #DC143C; /* Đỏ tươi */
      --text-color-light: #FFFFFF;
      --text-color-dark: #333333;
      --background-dark: #1a1a1a;
      --background-light: #2c2c2c;
      --border-color: #555555;
      --accent-color: #00BFFF; /* Xanh dương */
    }

    body {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--text-color-light);
      background-color: var(--background-dark);
    }

    /* General styling for the page */
    .page-g-tr-c-ti-p-678 {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      background-color: var(--background-dark);
    }

    .page-g-tr-c-ti-p-678__section {
      padding: 40px 0;
      margin-bottom: 20px;
      border-radius: 8px;
    }

    .page-g-tr-c-ti-p-678__section--dark {
      background-color: var(--background-light);
    }

    .page-g-tr-c-ti-p-678__section-title {
      font-size: 2.5em;
      color: var(--primary-color);
      text-align: center;
      margin-bottom: 30px;
      font-weight: bold;
      text-transform: uppercase;
    }

    .page-g-tr-c-ti-p-678__section-subtitle {
      font-size: 1.8em;
      color: var(--text-color-light);
      text-align: center;
      margin-bottom: 20px;
      font-weight: normal;
    }

    .page-g-tr-c-ti-p-678__text-content {
      font-size: 1.1em;
      line-height: 1.8;
      color: var(--text-color-light);
      text-align: justify;
      margin-bottom: 20px;
    }

    .page-g-tr-c-ti-p-678__text-content strong {
      color: var(--primary-color);
    }

    /* Hero Section */
    .page-g-tr-c-ti-p-678__hero-section {
      position: relative;
      width: 100%;
      height: 60vh; /* Adjusted for mobile-first */
      min-height: 300px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      overflow: hidden;
      padding-top: 10px; /* Decorative top spacing as per instruction */
    }

    .page-g-tr-c-ti-p-678__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
      filter: brightness(0.6);
    }

    .page-g-tr-c-ti-p-678__hero-content {
      z-index: 1;
      padding: 20px;
      max-width: 800px;
    }

    .page-g-tr-c-ti-p-678__hero-title {
      font-size: 3em;
      color: var(--primary-color);
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      line-height: 1.2;
    }

    .page-g-tr-c-ti-p-678__hero-description {
      font-size: 1.2em;
      color: var(--text-color-light);
      margin-bottom: 30px;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }

    .page-g-tr-c-ti-p-678__button {
      display: inline-block;
      padding: 12px 30px;
      background-color: var(--secondary-color);
      color: var(--text-color-light);
      text-decoration: none;
      border-radius: 5px;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-g-tr-c-ti-p-678__button:hover {
      background-color: #B2002B;
      transform: translateY(-2px);
    }

    /* Feature Grid */
    .page-g-tr-c-ti-p-678__feature-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      padding: 20px;
    }

    .page-g-tr-c-ti-p-678__feature-item {
      background-color: var(--background-light);
      border-radius: 8px;
      padding: 25px;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
      border: 1px solid var(--border-color);
    }

    .page-g-tr-c-ti-p-678__feature-item:hover {
      transform: translateY(-5px);
    }

    .page-g-tr-c-ti-p-678__feature-icon {
      width: 80px;
      height: 80px;
      margin-bottom: 15px;
      display: block;
      margin-left: auto;
      margin-right: auto;
      border-radius: 50%;
      object-fit: cover;
      border: 3px solid var(--primary-color);
      max-width: 100%;
      height: auto;
    }

    .page-g-tr-c-ti-p-678__feature-title {
      font-size: 1.5em;
      color: var(--primary-color);
      margin-bottom: 10px;
    }

    .page-g-tr-c-ti-p-678__feature-description {
      font-size: 1em;
      color: var(--text-color-light);
    }

    /* Image Gallery/Product Showcase */
    .page-g-tr-c-ti-p-678__image-gallery {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
      padding: 20px;
    }

    .page-g-tr-c-ti-p-678__gallery-item {
      background-color: var(--background-light);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      border: 1px solid var(--border-color);
    }

    .page-g-tr-c-ti-p-678__gallery-image {
      width: 100%;
      height: 250px;
      object-fit: cover;
      display: block;
      max-width: 100%;
      height: auto;
    }

    .page-g-tr-c-ti-p-678__gallery-caption {
      padding: 15px;
      font-size: 1.1em;
      color: var(--primary-color);
      text-align: center;
    }

    /* How-to Guide / Steps */
    .page-g-tr-c-ti-p-678__steps-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      padding: 20px;
    }

    .page-g-tr-c-ti-p-678__step-item {
      display: flex;
      align-items: flex-start;
      background-color: var(--background-light);
      border-radius: 8px;
      padding: 20px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      border: 1px solid var(--border-color);
    }

    .page-g-tr-c-ti-p-678__step-number {
      flex-shrink: 0;
      width: 40px;
      height: 40px;
      background-color: var(--primary-color);
      color: var(--text-color-dark);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5em;
      font-weight: bold;
      margin-right: 15px;
    }

    .page-g-tr-c-ti-p-678__step-content h3 {
      font-size: 1.4em;
      color: var(--primary-color);
      margin-top: 0;
      margin-bottom: 10px;
    }

    .page-g-tr-c-ti-p-678__step-content p {
      font-size: 1em;
      color: var(--text-color-light);
      margin-bottom: 0;
    }

    /* FAQ Section */
    .page-g-tr-c-ti-p-678__faq-section {
      padding: 40px 20px;
      background-color: var(--background-dark);
      border-radius: 8px;
    }

    .page-g-tr-c-ti-p-678__faq-item {
      background-color: var(--background-light);
      border: 1px solid var(--border-color);
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
    }

    .page-g-tr-c-ti-p-678__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: var(--background-light);
      color: var(--primary-color);
      cursor: pointer;
      font-size: 1.2em;
      font-weight: bold;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-g-tr-c-ti-p-678__faq-question:hover {
      background-color: #3a3a3a;
    }

    .page-g-tr-c-ti-p-678__faq-question h3 {
      margin: 0;
      color: var(--primary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-g-tr-c-ti-p-678__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--accent-color);
      pointer-events: none; /* Prevent toggle icon from blocking click event */
      transition: transform 0.3s ease;
    }

    .page-g-tr-c-ti-p-678__faq-item.active .page-g-tr-c-ti-p-678__faq-toggle {
      transform: rotate(45deg); /* Change + to X or - */
    }

    .page-g-tr-c-ti-p-678__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      background-color: #222222;
      color: var(--text-color-light);
      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;
    }

    .page-g-tr-c-ti-p-678__faq-item.active .page-g-tr-c-ti-p-678__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px !important;
      opacity: 1;
    }

    .page-g-tr-c-ti-p-678__faq-answer p {
      margin-bottom: 0;
    }

    /* Call to action section */
    .page-g-tr-c-ti-p-678__cta-section {
      text-align: center;
      background-color: var(--secondary-color);
      padding: 50px 20px;
      border-radius: 8px;
      margin-top: 40px;
    }

    .page-g-tr-c-ti-p-678__cta-title {
      font-size: 2.2em;
      color: var(--text-color-light);
      margin-bottom: 15px;
    }

    .page-g-tr-c-ti-p-678__cta-description {
      font-size: 1.2em;
      color: var(--text-color-light);
      margin-bottom: 30px;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-g-tr-c-ti-p-678__hero-section {
        height: 50vh;
      }

      .page-g-tr-c-ti-p-678__hero-title {
        font-size: 2.2em;
      }

      .page-g-tr-c-ti-p-678__hero-description {
        font-size: 1em;
      }

      .page-g-tr-c-ti-p-678__section-title {
        font-size: 2em;
      }

      .page-g-tr-c-ti-p-678__section-subtitle {
        font-size: 1.5em;
      }

      .page-g-tr-c-ti-p-678__feature-grid,
      .page-g-tr-c-ti-p-678__image-gallery {
        grid-template-columns: 1fr;
        padding: 10px;
      }

      .page-g-tr-c-ti-p-678__steps-list {
        padding: 10px;
      }

      .page-g-tr-c-ti-p-678__step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 15px;
      }

      .page-g-tr-c-ti-p-678__step-number {
        margin-right: 0;
        margin-bottom: 15px;
      }

      .page-g-tr-c-ti-p-678__faq-question {
        font-size: 1.1em;
        padding: 12px 15px;
      }

      .page-g-tr-c-ti-p-678__faq-answer {
        padding: 0 15px;
      }

      .page-g-tr-c-ti-p-678__faq-item.active .page-g-tr-c-ti-p-678__faq-answer {
        padding: 15px !important;
      }

      .page-g-tr-c-ti-p-678__cta-title {
        font-size: 1.8em;
      }

      .page-g-tr-c-ti-p-678__cta-description {
        font-size: 1em;
      }

      /* List item responsive requirements */
      .page-g-tr-c-ti-p-678__feature-grid > *,
      .page-g-tr-c-ti-p-678__image-gallery > *,
      .page-g-tr-c-ti-p-678__steps-list > * {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding-left: 15px !important; /* Adjust padding to prevent overlap */
        padding-right: 15px !important; /* Adjust padding to prevent overlap */
      }
      .page-g-tr-c-ti-p-678__steps-list {
        padding: 0 !important;
      }
      .page-g-tr-c-ti-p-678__feature-item,
      .page-g-tr-c-ti-p-678__gallery-item,
      .page-g-tr-c-ti-p-678__step-item,
      .page-g-tr-c-ti-p-678__faq-item {
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      .page-g-tr-c-ti-p-678__gallery-image,
      .page-g-tr-c-ti-p-678__feature-icon {
        max-width: 100% !important;
        height: auto !important;
      }
    }

    @media (max-width: 480px) {
      .page-g-tr-c-ti-p-678__hero-title {
        font-size: 1.8em;
      }
      .page-g-tr-c-ti-p-678__hero-description {
        font-size: 0.9em;
      }
      .page-g-tr-c-ti-p-678__section-title {
        font-size: 1.8em;
      }
      .page-g-tr-c-ti-p-678__button {
        padding: 10px 20px;
        font-size: 0.9em;
      }
    }