/* CSS Reset & Base */
.page-khuyen-mai {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #F3F8FF; /* Text Main */
  background-color: #08162B; /* Deep Navy from body background */
}

.page-khuyen-mai__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* Hero Section */
.page-khuyen-mai__hero-section {
  position: relative;
  padding-top: 10px; /* Fixed header spacing */
  padding-bottom: 60px;
  text-align: center;
  background-color: #08162B;
  overflow: hidden;
}

.page-khuyen-mai__hero-image-wrapper {
  width: 100%;
  height: auto;
  max-height: 675px; /* Adjust as needed */
  overflow: hidden;
  margin-bottom: 30px;
}

.page-khuyen-mai__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: center;
}

.page-khuyen-mai__hero-content-wrapper {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-khuyen-mai__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  color: #F2C14E; /* Gold */
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  text-shadow: 0 0 10px rgba(242, 193, 78, 0.5);
}

.page-khuyen-mai__hero-description {
  font-size: 1.15rem;
  color: #AFC4E8; /* Text Secondary */
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* General Section Styling */
.page-khuyen-mai__intro-section,
.page-khuyen-mai__promotions-grid-section,
.page-khuyen-mai__how-to-claim-section,
.page-khuyen-mai__terms-section,
.page-khuyen-mai__tips-section,
.page-khuyen-mai__faq-section,
.page-khuyen-mai__cta-section {
  padding: 60px 0;
  background-color: #08162B;
}

.page-khuyen-mai__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: #F2C14E; /* Gold */
  text-align: center;
  margin-bottom: 40px;
  font-weight: 700;
}

.page-khuyen-mai__sub-title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  color: #F3F8FF; /* Text Main */
  margin-top: 30px;
  margin-bottom: 20px;
  font-weight: 600;
}

.page-khuyen-mai__text-block {
  font-size: 1rem;
  color: #AFC4E8; /* Text Secondary */
  margin-bottom: 20px;
  text-align: justify;
}

.page-khuyen-mai__benefits-list,
.page-khuyen-mai__terms-list,
.page-khuyen-mai__tips-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-khuyen-mai__list-item {
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84; /* Border */
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 15px;
  color: #AFC4E8;
  font-size: 1rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__list-title {
  color: #F3F8FF; /* Text Main */
  font-size: 1.25rem;
  margin-bottom: 10px;
  font-weight: 600;
}

/* Buttons */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary,
.page-khuyen-mai__btn-tertiary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: all 0.3s ease;
  text-align: center;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%); /* Button */
  color: #F3F8FF; /* Text Main */
  border: none;
  box-shadow: 0 5px 15px rgba(43, 115, 246, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
  background: linear-gradient(180deg, #1144A6 0%, #2B73F6 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(43, 115, 246, 0.6);
}

.page-khuyen-mai__btn-secondary {
  background-color: #1D5FD1; /* Auxiliary color */
  color: #F3F8FF; /* Text Main */
  border: 2px solid #1D5FD1;
  box-shadow: 0 3px 10px rgba(29, 95, 209, 0.3);
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #113B7A; /* Primary color */
  border-color: #113B7A;
  transform: translateY(-2px);
  box-shadow: 0 5px 12px rgba(29, 95, 209, 0.5);
}

.page-khuyen-mai__btn-tertiary {
  background: transparent;
  color: #F2C14E; /* Gold */
  border: 2px solid #F2C14E; /* Gold */
  box-shadow: none;
}

.page-khuyen-mai__btn-tertiary:hover {
  background-color: #F2C14E;
  color: #08162B;
  transform: translateY(-2px);
}

/* Promotions Grid Section */
.page-khuyen-mai__card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai__promo-card {
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84; /* Border */
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.page-khuyen-mai__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai__card-title {
  font-size: 1.5rem;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
  font-weight: 600;
}

.page-khuyen-mai__card-description {
  font-size: 0.95rem;
  color: #AFC4E8; /* Text Secondary */
  margin-bottom: 25px;
  flex-grow: 1;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__btn-secondary {
  margin-top: auto;
  align-self: flex-start;
  padding: 10px 20px;
  font-size: 0.9rem;
}

/* How To Claim Section */
.page-khuyen-mai__steps-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
  margin-bottom: 50px;
}

.page-khuyen-mai__step-card {
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84; /* Border */
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-khuyen-mai__step-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #F3F8FF;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  box-shadow: 0 0 15px rgba(43, 115, 246, 0.5);
}

.page-khuyen-mai__step-title {
  font-size: 1.3rem;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
  font-weight: 600;
}

.page-khuyen-mai__step-description {
  font-size: 0.95rem;
  color: #AFC4E8; /* Text Secondary */
  margin-bottom: 25px;
  flex-grow: 1;
}

.page-khuyen-mai__step-card .page-khuyen-mai__btn-tertiary {
  margin-top: auto;
}

.page-khuyen-mai__guide-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Terms Section */
.page-khuyen-mai__terms-list .page-khuyen-mai__list-item {
  padding-left: 25px;
  border-left: 5px solid #F2C14E; /* Gold */
  border-radius: 0 8px 8px 0;
  background-color: #10233F;
}

.page-khuyen-mai__terms-list .page-khuyen-mai__list-title {
  color: #F2C14E;
  font-size: 1.3rem;
}

.page-khuyen-mai__terms-section .page-khuyen-mai__btn-primary {
  margin-top: 40px;
  display: block;
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

/* Tips Section */
.page-khuyen-mai__tips-list .page-khuyen-mai__list-item {
  padding-left: 25px;
  border-left: 5px solid #1D5FD1; /* Auxiliary color */
  border-radius: 0 8px 8px 0;
  background-color: #10233F;
}

.page-khuyen-mai__tips-list .page-khuyen-mai__list-title {
  color: #F3F8FF;
  font-size: 1.3rem;
}

/* FAQ Section */
.page-khuyen-mai__faq-list {
  margin-top: 40px;
}

.page-khuyen-mai__faq-item {
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84; /* Border */
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15rem;
  color: #F3F8FF; /* Text Main */
  font-weight: 600;
  cursor: pointer;
  background-color: #113B7A; /* Primary color */
  border-bottom: 1px solid #1B3357; /* Divider */
  user-select: none;
  list-style: none;
}

.page-khuyen-mai__faq-question::-webkit-details-marker {
  display: none;
}

.page-khuyen-mai__faq-question .page-khuyen-mai__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  color: #F2C14E; /* Gold */
  transition: transform 0.3s ease;
}

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

.page-khuyen-mai__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  color: #AFC4E8; /* Text Secondary */
  background-color: #10233F;
}

/* CTA Section */
.page-khuyen-mai__cta-section {
  text-align: center;
  padding-bottom: 80px;
}

.page-khuyen-mai__cta-section .page-khuyen-mai__text-block {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 40px;
}

.page-khuyen-mai__cta-section .page-khuyen-mai__btn-primary {
  padding: 16px 40px;
  font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-khuyen-mai__container {
    padding: 20px 30px;
  }

  .page-khuyen-mai__main-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }

  .page-khuyen-mai__hero-description {
    font-size: 1.05rem;
  }

  .page-khuyen-mai__section-title {
    font-size: clamp(1.6rem, 3.8vw, 2.5rem);
  }

  .page-khuyen-mai__sub-title,
  .page-khuyen-mai__list-title,
  .page-khuyen-mai__card-title,
  .page-khuyen-mai__step-title {
    font-size: clamp(1.2rem, 2.2vw, 1.8rem);
  }

  .page-khuyen-mai__card-grid,
  .page-khuyen-mai__steps-wrapper {
    gap: 20px;
  }

  .page-khuyen-mai__promo-card .page-khuyen-mai__btn-secondary {
    font-size: 0.85rem;
    padding: 8px 18px;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-khuyen-mai__container {
    padding-left: 15px;
    padding-right: 15px;
  }

  /* HERO 主图区域 */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important; /* Ensure minimal top padding */
    padding-bottom: 40px;
  }

  .page-khuyen-mai__main-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
    margin-bottom: 15px;
  }

  .page-khuyen-mai__hero-description {
    font-size: 1rem;
    margin-bottom: 30px;
  }

  .page-khuyen-mai__hero-image-wrapper {
    max-height: 400px;
  }

  /* 通用图片与容器 */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-khuyen-mai__section,
  .page-khuyen-mai__card,
  .page-khuyen-mai__container,
  .page-khuyen-mai__promo-card,
  .page-khuyen-mai__step-card,
  .page-khuyen-mai__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai__section-title {
    font-size: clamp(1.5rem, 6vw, 2.2rem);
    margin-bottom: 30px;
  }

  .page-khuyen-mai__sub-title,
  .page-khuyen-mai__list-title,
  .page-khuyen-mai__card-title,
  .page-khuyen-mai__step-title {
    font-size: clamp(1.1rem, 4.5vw, 1.5rem);
  }

  .page-khuyen-mai__text-block,
  .page-khuyen-mai__card-description,
  .page-khuyen-mai__step-description,
  .page-khuyen-mai__faq-answer p {
    font-size: 0.95rem;
  }

  /* 按钮与按钮容器 */
  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary,
  .page-khuyen-mai__btn-tertiary,
  .page-khuyen-mai a[class*="button"],
  .page-khuyen-mai 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: 12px 20px !important;
    font-size: 1rem !important;
  }

  .page-khuyen-mai__cta-buttons,
  .page-khuyen-mai__button-group,
  .page-khuyen-mai__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    display: flex;
    flex-direction: column;
    gap: 15px;
  }

  .page-khuyen-mai__promo-card .page-khuyen-mai__btn-secondary,
  .page-khuyen-mai__step-card .page-khuyen-mai__btn-tertiary {
    align-self: stretch;
  }

  .page-khuyen-mai__card-grid,
  .page-khuyen-mai__steps-wrapper {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .page-khuyen-mai__card-image {
    height: 180px;
  }

  .page-khuyen-mai__guide-image {
    border-radius: 8px;
  }

  .page-khuyen-mai__terms-section .page-khuyen-mai__btn-primary {
    max-width: 100%;
  }

  .page-khuyen-mai__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }

  .page-khuyen-mai__faq-answer {
    padding: 15px 20px;
  }

  /* These are from the provided template, ensuring they are present for completeness if similar patterns were used. */
  /* They are not directly used in the current Khuyen Mai content, but the prompt requires them if they were part of the '必写清单' */
  .page-khuyen-mai__blog-masonry { grid-template-columns: 1fr; gap: 20px; }
  .page-khuyen-mai__game-slide { flex: 0 0 160px; max-width: 160px; }
  .page-khuyen-mai__banners-top-wrapper { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
  .page-khuyen-mai__blog-slide { flex: 0 0 100%; max-width: 100%; }

  /* Specific overrides for mobile, if any */
  .page-khuyen-mai__hero-content-wrapper {
    padding: 0 15px;
  }
}

/* Placeholder for desktop styles from template, not directly used in this page's content but included for completeness as per rules. */
.page-khuyen-mai__home-content{border:1px solid #FBB00D;border-radius:10px;height:650px;overflow-y:auto}
.page-khuyen-mai__row-games,.page-khuyen-mai__row-sport,.page-khuyen-mai__row-coop{background-color:#1A202C;padding:40px 20px;max-width:1330px;margin:0 auto}
.page-khuyen-mai__games-title,.page-khuyen-mai__sport-title,.page-khuyen-mai__coop-title{color:#fff;text-align:center}
.page-khuyen-mai__slider-wrapper{overflow:hidden}
.page-khuyen-mai__slider-track{display:flex;flex-wrap:nowrap;gap:16px}
.page-khuyen-mai__game-slide{flex:0 0 200px;max-width:200px}
.page-khuyen-mai__banners-top-wrapper{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;max-width:900px;margin:0 auto}
.page-khuyen-mai__banner-item img{object-fit:contain;margin:0 auto;display:block}
.page-khuyen-mai__blog-masonry{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:stretch}
.page-khuyen-mai__blog-card-link{display:flex;flex-direction:column;height:100%}
.page-khuyen-mai__btn-outline{margin-top:auto}
.page-khuyen-mai__blog-slider-track{display:flex;flex-wrap:nowrap;gap:20px}
.page-khuyen-mai__blog-slide{flex:0 0 calc(33.333% - 14px);max-width:calc(33.333% - 14px)}