:root {
      --primary-color: #e44d26; /* Cam đỏ */
      --secondary-color: #f7931e; /* Cam tươi */
      --dark-bg: #1a1a1a;
      --light-text: #ffffff;
      --gray-text: #cccccc;
      --border-color: #333333;
      --accent-green: #4CAF50;
      --accent-blue: #2196F3;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n {
      font-family: 'Arial', sans-serif;
      color: var(--light-text);
      background-color: var(--dark-bg);
      line-height: 1.6;
      padding-bottom: 50px; /* Thêm padding dưới để tránh footer che khuất nội dung */
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__section {
      padding: 40px 20px;
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__section--dark {
      background-color: #222222;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__hero-section {
      padding-top: 10px; /* Adjusted for shared header offset */
      background-color: #000;
      background-size: cover;
      background-position: center;
      min-height: 450px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      position: relative;
      overflow: hidden;
      padding-bottom: 40px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.9));
      z-index: 1;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
      padding: 20px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__hero-title {
      font-size: 3.2em;
      color: var(--primary-color);
      margin-bottom: 20px;
      line-height: 1.2;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__hero-description {
      font-size: 1.2em;
      color: var(--gray-text);
      margin-bottom: 30px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__button {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--light-text);
      padding: 15px 30px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__button:hover {
      background-color: var(--secondary-color);
      transform: translateY(-2px);
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__heading-primary {
      font-size: 2.5em;
      color: var(--primary-color);
      margin-bottom: 30px;
      text-transform: uppercase;
      position: relative;
      padding-bottom: 15px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__heading-primary::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--secondary-color);
      border-radius: 2px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__heading-secondary {
      font-size: 2em;
      color: var(--light-text);
      margin-bottom: 25px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__text {
      font-size: 1.1em;
      color: var(--gray-text);
      margin-bottom: 20px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__feature-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__feature-item {
      background-color: #2a2a2a;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      text-align: left;
      border-left: 5px solid var(--primary-color);
      transition: transform 0.3s ease, background-color 0.3s ease;
      box-sizing: border-box;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__feature-item:hover {
      transform: translateY(-5px);
      background-color: #333333;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__feature-title {
      font-size: 1.5em;
      color: var(--secondary-color);
      margin-bottom: 15px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__feature-description {
      color: var(--gray-text);
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__image-container {
      margin: 40px auto;
      max-width: 100%;
      overflow: hidden;
      border-radius: 10px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
      box-sizing: border-box;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__image {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__image-container:hover .page-c-c-c-th-thao-tr-c-tuy-n__image {
      transform: scale(1.02);
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__steps-list {
      list-style: none;
      padding: 0;
      margin-top: 40px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__step-item {
      background-color: #2a2a2a;
      padding: 25px;
      border-radius: 10px;
      text-align: center;
      position: relative;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      border: 1px solid var(--border-color);
      transition: background-color 0.3s ease;
      box-sizing: border-box;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__step-item:hover {
      background-color: #333333;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 50px;
      height: 50px;
      background-color: var(--primary-color);
      color: var(--light-text);
      border-radius: 50%;
      font-size: 1.8em;
      font-weight: bold;
      margin-bottom: 15px;
      box-shadow: 0 0 0 5px rgba(228, 77, 38, 0.3);
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__step-title {
      font-size: 1.4em;
      color: var(--secondary-color);
      margin-bottom: 10px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__step-description {
      color: var(--gray-text);
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__payment-grid,
    .page-c-c-c-th-thao-tr-c-tuy-n__provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 40px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__payment-item,
    .page-c-c-c-th-thao-tr-c-tuy-n__provider-item {
      background-color: #2a2a2a;
      padding: 20px;
      border-radius: 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
      border: 1px solid var(--border-color);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      box-sizing: border-box;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__payment-item:hover,
    .page-c-c-c-th-thao-tr-c-tuy-n__provider-item:hover {
      transform: translateY(-3px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__payment-logo,
    .page-c-c-c-th-thao-tr-c-tuy-n__provider-logo {
      max-width: 100%;
      height: auto;
      object-fit: contain;
      margin-bottom: 10px;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__payment-name,
    .page-c-c-c-th-thao-tr-c-tuy-n__provider-name {
      font-weight: bold;
      color: var(--light-text);
      font-size: 1.1em;
      text-align: center;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__faq-container {
      margin-top: 40px;
      text-align: left;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      border: 1px solid var(--border-color);
      box-sizing: border-box;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 25px;
      background-color: #333333;
      color: var(--light-text);
      cursor: pointer;
      user-select: none;
      font-size: 1.2em;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__faq-question:hover {
      background-color: #3d3d3d;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__faq-question h3 {
      margin: 0;
      color: var(--light-text);
      pointer-events: none; /* Prevent h3 from blocking click */
      flex-grow: 1;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__faq-toggle {
      font-size: 1.8em;
      line-height: 1;
      margin-left: 15px;
      color: var(--primary-color);
      pointer-events: none; /* Prevent toggle from blocking click */
      transition: transform 0.3s ease;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__faq-item.active .page-c-c-c-th-thao-tr-c-tuy-n__faq-toggle {
      transform: rotate(45deg); /* Change + to X or similar, or just rotate */
      color: var(--secondary-color);
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      color: var(--gray-text);
      font-size: 1.05em;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-c-c-c-th-thao-tr-c-tuy-n__faq-item.active .page-c-c-c-th-thao-tr-c-tuy-n__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to accommodate content */
      padding: 20px 25px !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .page-c-c-c-th-thao-tr-c-tuy-n__hero-title {
        font-size: 2.8em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__heading-primary {
        font-size: 2.2em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__heading-secondary {
        font-size: 1.8em;
      }
    }

    @media (max-width: 768px) {
      .page-c-c-c-th-thao-tr-c-tuy-n__section {
        padding: 30px 15px;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__hero-section {
        min-height: 350px;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__hero-title {
        font-size: 2.2em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__hero-description {
        font-size: 1em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__button {
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__heading-primary {
        font-size: 1.8em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__heading-secondary {
        font-size: 1.5em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__text {
        font-size: 0.95em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__feature-grid,
      .page-c-c-c-th-thao-tr-c-tuy-n__steps-list,
      .page-c-c-c-th-thao-tr-c-tuy-n__payment-grid,
      .page-c-c-c-th-thao-tr-c-tuy-n__provider-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-c-c-c-th-thao-tr-c-tuy-n__feature-item,
      .page-c-c-c-th-thao-tr-c-tuy-n__step-item,
      .page-c-c-c-th-thao-tr-c-tuy-n__payment-item,
      .page-c-c-c-th-thao-tr-c-tuy-n__provider-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px 15px !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }

      .page-c-c-c-th-thao-tr-c-tuy-n__feature-grid,
      .page-c-c-c-th-thao-tr-c-tuy-n__steps-list,
      .page-c-c-c-th-thao-tr-c-tuy-n__payment-grid,
      .page-c-c-c-th-thao-tr-c-tuy-n__provider-grid {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }

      .page-c-c-c-th-thao-tr-c-tuy-n__image-container {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-c-c-c-th-thao-tr-c-tuy-n__image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-c-c-c-th-thao-tr-c-tuy-n__faq-question {
        font-size: 1.1em;
        padding: 15px 20px;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__faq-answer {
        font-size: 1em;
        padding: 0 20px;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__faq-item.active .page-c-c-c-th-thao-tr-c-tuy-n__faq-answer {
        padding: 15px 20px !important;
      }
    }

    @media (max-width: 480px) {
      .page-c-c-c-th-thao-tr-c-tuy-n__hero-title {
        font-size: 1.8em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__heading-primary {
        font-size: 1.6em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__heading-secondary {
        font-size: 1.3em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__feature-title {
        font-size: 1.3em;
      }
      .page-c-c-c-th-thao-tr-c-tuy-n__step-title {
        font-size: 1.2em;
      }
    }