.page-nh {
  font-family: Arial, sans-serif;
  color: #F3F8FF; /* Text Main */
  background-color: var(--deep-navy-color); /* Body background from shared */
}

.page-nh__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  box-sizing: border-box;
}

.page-nh__section-title {
  font-size: 2.5em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: #F3F8FF;
  line-height: 1.2;
}

.page-nh__section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 60px;
  color: #AFC4E8;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-nh__card {
  background-color: #10233F; /* Card BG */
  border-radius: 10px;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: #F3F8FF;
  border: 1px solid #244D84; /* Border */
}

.page-nh__btn-primary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%); /* Button gradient */
  color: #ffffff;
  font-size: 1.1em;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
  text-align: center;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-nh__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(43, 115, 246, 0.4);
}

.page-nh__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  background: transparent;
  color: #F3F8FF; /* Text Main */
  font-size: 1.1em;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  border: 2px solid #1144A6; /* Deeper blue border */
  cursor: pointer;
  text-align: center;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-nh__btn-secondary:hover {
  background-color: rgba(17, 68, 166, 0.2); /* Slightly lighter transparent */
  border-color: #2B73F6;
}

.page-nh__btn-small {
  padding: 10px 20px;
  font-size: 0.9em;
}

.page-nh__hero-section {
  position: relative;
  overflow: hidden;
  padding-top: 10px; /* Specific top padding */
  padding-bottom: 0;
  padding-left: 0;
  padding-right: 0;
  margin-bottom: 60px;
}

.page-nh__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  min-height: 400px;
  max-height: 675px;
}

.page-nh__hero-content {
  max-width: 1200px;
  margin: 40px auto 0 auto;
  padding: 0 20px 60px;
  text-align: center;
}

.page-nh__hero-title {
  font-size: 3.2em;
  font-weight: 800;
  color: #F3F8FF;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-nh__hero-description {
  font-size: 1.3em;
  color: #AFC4E8;
  margin-bottom: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

.page-nh__hero-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.page-nh__intro-section {
  padding: 60px 0;
  margin-bottom: 60px;
  background-color: var(--deep-navy-color);
}

.page-nh__intro-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  color: #AFC4E8;
  font-size: 1.1em;
  line-height: 1.6;
  text-align: justify;
}

.page-nh__intro-image {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.page-nh__why-choose-section {
  padding: 60px 0;
  margin-bottom: 60px;
  background-color: #08162B;
}

.page-nh__why-choose-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-nh__why-choose-item {
  text-align: center;
}

.page-nh__why-choose-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-nh__why-choose-heading {
  font-size: 1.5em;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
}

.page-nh__why-choose-item p {
  color: #AFC4E8;
  line-height: 1.6;
}

.page-nh__popular-games-section {
  padding: 60px 0;
  margin-bottom: 60px;
  background-color: var(--deep-navy-color);
}

.page-nh__game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-nh__game-card {
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-nh__game-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 15px;
}

.page-nh__game-title {
  font-size: 1.3em;
  color: #F3F8FF;
  margin-bottom: 10px;
}

.page-nh__game-provider {
  font-size: 0.9em;
  color: #AFC4E8;
  margin-bottom: 20px;
}

.page-nh__how-to-play-section {
  padding: 60px 0;
  margin-bottom: 60px;
  background-color: #08162B;
}

.page-nh__how-to-play-content {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

.page-nh__how-to-play-image {
  flex: 1;
  max-width: 50%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.page-nh__step-list {
  flex: 1;
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-nh__step-list li {
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84; /* Border */
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  color: #AFC4E8;
}

.page-nh__step-list li:last-child {
  margin-bottom: 0;
}

.page-nh__step-title {
  font-size: 1.4em;
  color: #F2C14E; /* Gold */
  margin-top: 0;
  margin-bottom: 10px;
}

.page-nh__tips-section {
  padding: 60px 0;
  margin-bottom: 60px;
  background-color: var(--deep-navy-color);
}

.page-nh__tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-nh__tips-item {
  text-align: center;
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84; /* Border */
  border-radius: 10px;
  padding: 25px;
}

.page-nh__tips-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-nh__tips-heading {
  font-size: 1.4em;
  color: #F3F8FF;
  margin-bottom: 15px;
}

.page-nh__tips-item p {
  color: #AFC4E8;
  line-height: 1.6;
}

.page-nh__promotions-section {
  padding: 60px 0;
  margin-bottom: 60px;
  background-color: #08162B;
}

.page-nh__promotion-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.page-nh__promo-card {
  text-align: center;
}

.page-nh__promo-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-nh__promo-title {
  font-size: 1.4em;
  color: #F2C14E; /* Gold */
  margin-bottom: 10px;
}

.page-nh__promo-text {
  color: #AFC4E8;
  line-height: 1.6;
}

.page-nh__button-container {
  text-align: center;
}

.page-nh__faq-section {
  padding: 60px 0;
  margin-bottom: 60px;
  background-color: var(--deep-navy-color);
}

.page-nh__faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.page-nh__faq-item {
  margin-bottom: 15px;
  border: 1px solid #244D84; /* Border */
  border-radius: 8px;
  overflow: hidden;
}

.page-nh__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  background-color: #113B7A; /* Main color */
  cursor: pointer;
  font-size: 1.2em;
  font-weight: 600;
  color: #F3F8FF;
  position: relative;
  list-style: none; /* For details/summary */
}

.page-nh__faq-question::-webkit-details-marker, /* Hide default marker for Chrome */
.page-nh__faq-question::marker { /* Hide default marker for Firefox */
  display: none;
}

.page-nh__faq-toggle {
  font-size: 1.5em;
  font-weight: 700;
  line-height: 1;
  margin-left: 15px;
  transition: transform 0.3s ease;
}

.page-nh__faq-item[open] .page-nh__faq-toggle {
  transform: rotate(45deg);
}

.page-nh__faq-answer {
  padding: 20px 25px;
  background-color: #10233F; /* Card BG */
  color: #AFC4E8;
  line-height: 1.6;
  border-top: 1px solid #244D84;
}

.page-nh__cta-bottom-section {
  padding: 60px 0;
  text-align: center;
  background-color: #08162B;
}

.page-nh__cta-title {
  font-size: 2.8em;
  font-weight: 700;
  color: #F2C14E; /* Gold */
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-nh__cta-description {
  font-size: 1.2em;
  color: #AFC4E8;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

.page-nh__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* Text colors for specific elements */
.text-main {
  color: #F3F8FF;
}

.text-secondary {
  color: #AFC4E8;
}

/* Global image and container responsiveness */
.page-nh img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-nh__section,
.page-nh__card,
.page-nh__container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* MEDIA QUERIES */
@media (max-width: 1024px) {
  .page-nh__section-title {
    font-size: 2em;
  }
  .page-nh__hero-title {
    font-size: 2.5em;
  }
  .page-nh__hero-description {
    font-size: 1.1em;
  }
  .page-nh__how-to-play-content {
    flex-direction: column;
    align-items: center;
  }
  .page-nh__how-to-play-image {
    max-width: 80%;
  }
  .page-nh__cta-title {
    font-size: 2.2em;
  }
  .page-nh__why-choose-grid,
  .page-nh__game-grid,
  .page-nh__tips-grid,
  .page-nh__promotion-cards {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-nh {
    font-size: 15px;
  }
  .page-nh__container {
    padding: 15px;
  }

  /* HERO 主图区域 */
  .page-nh__hero-section {
    padding-top: 10px !important; /* Specific top padding for mobile */
    margin-bottom: 40px;
  }
  .page-nh__hero-image {
    min-height: 250px;
  }
  .page-nh__hero-content {
    padding: 0 15px 40px;
  }
  .page-nh__hero-title {
    font-size: 2em;
    margin-bottom: 15px;
  }
  .page-nh__hero-description {
    font-size: 1em;
    margin-bottom: 30px;
  }
  .page-nh__hero-buttons {
    flex-direction: column;
    gap: 15px;
  }

  /* 产品展示图区域 & 通用图片与容器 */
  .page-nh img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-nh__section,
  .page-nh__card,
  .page-nh__container,
  .page-nh__intro-section,
  .page-nh__why-choose-section,
  .page-nh__popular-games-section,
  .page-nh__how-to-play-section,
  .page-nh__tips-section,
  .page-nh__promotions-section,
  .page-nh__faq-section,
  .page-nh__cta-bottom-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-nh__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }
  .page-nh__section-description {
    font-size: 1em;
    margin-bottom: 40px;
  }

  .page-nh__why-choose-grid,
  .page-nh__game-grid,
  .page-nh__tips-grid,
  .page-nh__promotion-cards {
    grid-template-columns: 1fr; /* Single column layout for cards */
    gap: 20px;
  }

  .page-nh__how-to-play-content {
    flex-direction: column;
    gap: 20px;
  }
  .page-nh__how-to-play-image {
    max-width: 100%;
  }

  .page-nh__step-list li {
    padding: 15px;
  }
  .page-nh__step-title {
    font-size: 1.2em;
  }

  .page-nh__promo-image {
    height: 160px;
  }

  /* 按钮与按钮容器 */
  .page-nh__btn-primary,
  .page-nh__btn-secondary,
  .page-nh a[class*="button"],
  .page-nh a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-nh__hero-buttons,
  .page-nh__button-container,
  .page-nh__cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
    flex-direction: column;
    gap: 15px;
  }

  .page-nh__faq-question {
    font-size: 1.1em;
    padding: 15px 20px;
  }
  .page-nh__faq-answer {
    padding: 15px 20px;
  }

  .page-nh__cta-title {
    font-size: 2em;
  }
  .page-nh__cta-description {
    font-size: 1em;
  }
}