/* Tổng quan */
    .page-123b-ng-nh-p {
      font-family: 'Arial', sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f0f2f5;
      padding-bottom: 80px; /* Để chừa chỗ cho floating buttons */
    }

    /* Đảm bảo khoảng cách với header cố định */
    .page-123b-ng-nh-p__hero-section {
        padding-top: 10px; /* Small decorative padding, assuming body handles main offset */
    }

    .page-123b-ng-nh-p__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: #ffffff;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-123b-ng-nh-p__section--dark {
      background-color: #2c3e50;
      color: #ecf0f1;
    }

    .page-123b-ng-nh-p__section-title {
      text-align: center;
      color: #2980b9;
      margin-bottom: 30px;
      font-size: 2.5em;
      font-weight: bold;
    }

    .page-123b-ng-nh-p__section--dark .page-123b-ng-nh-p__section-title {
      color: #f39c12;
    }

    .page-123b-ng-nh-p__h2 {
      text-align: center;
      color: #2980b9;
      margin-bottom: 25px;
      font-size: 2em;
      font-weight: bold;
    }

    .page-123b-ng-nh-p__h3 {
      color: #34495e;
      font-size: 1.5em;
      margin-bottom: 15px;
    }

    .page-123b-ng-nh-p__text-center {
      text-align: center;
    }

    /* Hero Section */
    .page-123b-ng-nh-p__hero-section {
      text-align: center;
      padding: 60px 20px;
      background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d); /* Màu sắc sống động của game */
      color: #ffffff;
      margin-bottom: 20px;
      border-radius: 0 0 15px 15px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    }

    .page-123b-ng-nh-p__hero-title {
      font-size: 3.5em;
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-123b-ng-nh-p__hero-subtitle {
      font-size: 1.5em;
      max-width: 800px;
      margin: 0 auto 30px auto;
      line-height: 1.4;
    }

    .page-123b-ng-nh-p__hero-image-container {
      width: 100%;
      max-width: 800px;
      margin: 30px auto 0 auto;
      overflow: hidden;
      border-radius: 10px;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    }

    .page-123b-ng-nh-p__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* Hướng dẫn đăng nhập */
    .page-123b-ng-nh-p__login-guide-list {
      list-style: none;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
    }

    .page-123b-ng-nh-p__login-guide-item {
      background-color: #e8f4f8;
      border-left: 5px solid #3498db;
      padding: 25px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      position: relative;
      padding-left: 70px;
      box-sizing: border-box; /* Ensure padding is included in width */
    }

    .page-123b-ng-nh-p__login-guide-item::before {
      content: attr(data-step);
      position: absolute;
      left: 20px;
      top: 20px;
      background-color: #3498db;
      color: #ffffff;
      border-radius: 50%;
      width: 40px;
      height: 40px;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.4em;
      font-weight: bold;
    }

    .page-123b-ng-nh-p__login-guide-item-title {
      color: #2980b9;
      margin-top: 0;
      margin-bottom: 10px;
      font-size: 1.3em;
    }

    .page-123b-ng-nh-p__login-guide-item-description {
      color: #555;
    }

    /* Lợi ích */
    .page-123b-ng-nh-p__benefits-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }

    .page-123b-ng-nh-p__benefit-card {
      background-color: #f7f9fc;
      border: 1px solid #e0e6ed;
      padding: 25px;
      border-radius: 8px;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box; /* Ensure padding is included in width */
    }

    .page-123b-ng-nh-p__benefit-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    }

    .page-123b-ng-nh-p__benefit-icon-container {
      margin-bottom: 15px;
      display: inline-block;
      width: 100%;
      max-width: 150px; /* Ensure image is not too large */
      height: auto;
      overflow: hidden;
    }

    .page-123b-ng-nh-p__benefit-icon {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
    }

    .page-123b-ng-nh-p__benefit-title {
      color: #2c3e50;
      font-size: 1.4em;
      margin-bottom: 10px;
    }

    .page-123b-ng-nh-p__benefit-description {
      color: #666;
      font-size: 0.95em;
    }

    /* FAQ Section */
    .page-123b-ng-nh-p__faq-item {
      background-color: #f0f0f0;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-123b-ng-nh-p__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #3498db;
      color: #ffffff;
      cursor: pointer;
      user-select: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease;
    }

    .page-123b-ng-nh-p__faq-question:hover {
      background-color: #2980b9;
    }

    .page-123b-ng-nh-p__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from blocking click */
      color: inherit; /* Ensure h3 color is inherited from parent */
    }

    .page-123b-ng-nh-p__faq-toggle {
      font-size: 1.5em;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click */
    }

    .page-123b-ng-nh-p__faq-item.active .page-123b-ng-nh-p__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' or '-' */
    }

    .page-123b-ng-nh-p__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;
      background-color: #ffffff;
      color: #333;
      font-size: 0.95em;
    }

    .page-123b-ng-nh-p__faq-item.active .page-123b-ng-nh-p__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to show content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Call to Action */
    .page-123b-ng-nh-p__cta-section {
      text-align: center;
      background-color: #eaf7f7;
      border-radius: 8px;
      padding: 40px 20px;
    }

    .page-123b-ng-nh-p__cta-text {
      font-size: 1.2em;
      margin-bottom: 25px;
      color: #333;
    }

    .page-123b-ng-nh-p__cta-button {
      display: inline-block;
      background-color: #f39c12;
      color: #ffffff;
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.3s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      cursor: pointer;
      border: none;
    }

    .page-123b-ng-nh-p__cta-button:hover {
      background-color: #e67e22;
      transform: translateY(-2px);
    }

    /* Floating Buttons */
    .page-123b-ng-nh-p__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 15px;
      z-index: 1000;
    }

    .page-123b-ng-nh-p__floating-button {
      background-color: #f39c12;
      color: #ffffff;
      padding: 12px 25px;
      border-radius: 50px;
      font-size: 1.1em;
      font-weight: bold;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.3s ease;
      min-width: 120px;
    }

    .page-123b-ng-nh-p__floating-button--register {
      background-color: #27ae60;
    }

    .page-123b-ng-nh-p__floating-button--register:hover {
      background-color: #229954;
      transform: translateY(-2px);
    }

    .page-123b-ng-nh-p__floating-button--login {
      background-color: #3498db;
    }

    .page-123b-ng-nh-p__floating-button--login:hover {
      background-color: #2980b9;
      transform: translateY(-2px);
    }

    .page-123b-ng-nh-p__floating-button:hover {
      transform: translateY(-2px);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-123b-ng-nh-p__hero-title {
        font-size: 2.5em;
      }

      .page-123b-ng-nh-p__hero-subtitle {
        font-size: 1.2em;
      }

      .page-123b-ng-nh-p__section {
        padding: 30px 15px;
        margin-bottom: 15px;
      }

      .page-123b-ng-nh-p__section-title {
        font-size: 2em;
      }

      .page-123b-ng-nh-p__h2 {
        font-size: 1.8em;
      }

      .page-123b-ng-nh-p__h3 {
        font-size: 1.3em;
      }

      .page-123b-ng-nh-p__login-guide-list {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-123b-ng-nh-p__login-guide-item {
        padding-left: 60px;
      }

      .page-123b-ng-nh-p__login-guide-item::before {
        left: 15px;
        top: 15px;
        width: 35px;
        height: 35px;
        font-size: 1.2em;
      }

      .page-123b-ng-nh-p__benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-123b-ng-nh-p__benefit-card {
        padding: 20px;
      }

      .page-123b-ng-nh-p__benefit-title {
        font-size: 1.2em;
      }

      .page-123b-ng-nh-p__faq-question {
        padding: 12px 15px;
        font-size: 1em;
      }

      .page-123b-ng-nh-p__faq-toggle {
        font-size: 1.3em;
      }

      .page-123b-ng-nh-p__faq-answer {
        padding: 0 10px;
      }

      .page-123b-ng-nh-p__faq-item.active .page-123b-ng-nh-p__faq-answer {
        padding: 15px 10px !important;
      }

      .page-123b-ng-nh-p__cta-button {
        padding: 12px 25px;
        font-size: 1.1em;
      }

      .page-123b-ng-nh-p__floating-buttons {
        flex-direction: row;
        width: calc(100% - 40px);
        left: 20px;
        right: 20px;
        bottom: 15px;
        justify-content: space-around;
      }

      .page-123b-ng-nh-p__floating-button {
        flex: 1;
        min-width: unset;
        font-size: 1em;
        padding: 10px 15px;
      }

      /* List item mobile responsiveness */
      .page-123b-ng-nh-p__login-guide-list,
      .page-123b-ng-nh-p__benefits-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-123b-ng-nh-p__login-guide-item,
      .page-123b-ng-nh-p__benefit-card {
          width: 100% !important;
          max-width: 100% !important;
          box-sizing: border-box !important;
          margin-left: 0 !important;
          margin-right: 0 !important;
          word-wrap: break-word !important;
          overflow-wrap: break-word !important;
          word-break: break-word !important;
      }

      .page-123b-ng-nh-p__hero-image-container,
      .page-123b-ng-nh-p__hero-image,
      .page-123b-ng-nh-p__benefit-icon-container,
      .page-123b-ng-nh-p__benefit-icon {
          max-width: 100% !important;
          height: auto !important;
          box-sizing: border-box !important;
      }
    }