.page-khuyen-mai {
  font-family: Arial, sans-serif;
  color: var(--text-main, #FFF6D6); /* Default text color for the page */
  background-color: var(--bg-color, #0A0A0A); /* Page background color */
  line-height: 1.6;
  font-size: 16px;
}

.page-khuyen-mai__container {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, not --header-offset */
  padding-bottom: 40px;
  background-color: var(--bg-color, #0A0A0A);
  text-align: center;
}

.page-khuyen-mai__main-title {
  font-size: 3em;
  font-weight: bold;
  color: var(--text-main, #FFF6D6);
  margin-bottom: 15px;
  line-height: 1.2;
  max-width: 90%;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__description {
  font-size: 1.1em;
  color: rgba(255, 246, 214, 0.8);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap; /* Allow wrapping on smaller screens */
  width: 100%; /* Ensure container takes full width */
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-khuyen-mai__btn {
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  box-sizing: border-box;
  max-width: 100%; /* Important for responsiveness */
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text wrapping */
}

.page-khuyen-mai__btn--primary {
  background: linear-gradient(180deg, var(--btn-gradient-top, #FFD86A) 0%, var(--btn-gradient-bottom, #DDA11D) 100%);
  color: #111111; /* Darker text for bright button */
  border: none;
  box-shadow: 0 4px 15px rgba(242, 193, 78, 0.4);
}

.page-khuyen-mai__btn--primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(242, 193, 78, 0.6);
}

.page-khuyen-mai__btn--secondary {
  background: var(--card-bg, #111111);
  color: var(--glow-color, #FFD36B);
  border: 2px solid var(--border-color, #3A2A12);
}

.page-khuyen-mai__btn--secondary:hover {
  background: rgba(17, 17, 17, 0.8);
  color: #ffffff;
  border-color: var(--glow-color, #FFD36B);
}

.page-khuyen-mai__section-title {
  font-size: 2.2em;
  font-weight: bold;
  color: var(--text-main, #FFF6D6);
  text-align: center;
  margin-top: 60px;
  margin-bottom: 30px;
  line-height: 1.3;
}

.page-khuyen-mai__text-block {
  font-size: 1em;
  color: rgba(255, 246, 214, 0.7);
  margin-bottom: 20px;
  text-align: justify;
}

.page-khuyen-mai__promotions-overview,
.page-khuyen-mai__welcome-bonus,
.page-khuyen-mai__deposit-bonus,
.page-khuyen-mai__cashback-bonus,
.page-khuyen-mai__special-events,
.page-khuyen-mai__vip-program,
.page-khuyen-mai__how-to-claim,
.page-khuyen-mai__terms-conditions,
.page-khuyen-mai__faq-section,
.page-khuyen-mai__call-to-action {
  padding: 40px 0;
  border-bottom: 1px solid var(--border-color, #3A2A12);
}

.page-khuyen-mai__call-to-action {
  border-bottom: none;
  padding-bottom: 60px;
}

.page-khuyen-mai__image-wrapper {
  margin: 30px auto;
  max-width: 680px; /* Match image placeholder width */
  text-align: center;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__image-wrapper img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}

.page-khuyen-mai__image-caption {
  font-size: 0.9em;
  color: rgba(255, 246, 214, 0.6);
  margin-top: 10px;
}

.page-khuyen-mai__info-card,
.page-khuyen-mai__warning-card {
  background-color: var(--card-bg, #111111);
  border: 1px solid var(--border-color, #3A2A12);
  border-radius: 10px;
  padding: 30px;
  margin: 30px auto;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__card-title {
  font-size: 1.5em;
  color: var(--glow-color, #FFD36B);
  margin-bottom: 20px;
  text-align: center;
  font-weight: bold;
}

.page-khuyen-mai__list {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
}

.page-khuyen-mai__list li {
  color: rgba(255, 246, 214, 0.8);
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
}

.page-khuyen-mai__list li::before {
  content: '✓'; /* Checkmark icon */
  color: var(--glow-color, #FFD36B);
  position: absolute;
  left: 0;
  font-weight: bold;
}

.page-khuyen-mai__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai__step-card {
  background-color: var(--card-bg, #111111);
  border: 1px solid var(--border-color, #3A2A12);
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-khuyen-mai__step-title {
  font-size: 1.3em;
  color: var(--glow-color, #FFD36B);
  margin-bottom: 15px;
  font-weight: bold;
}

.page-khuyen-mai__step-card p {
  color: rgba(255, 246, 214, 0.7);
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__cta-buttons--bottom {
  margin-top: 40px;
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
  padding-bottom: 40px;
}

.page-khuyen-mai__faq-item {
  background-color: var(--card-bg, #111111);
  border: 1px solid var(--border-color, #3A2A12);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-khuyen-mai__faq-question {
  font-size: 1.2em;
  color: var(--text-main, #FFF6D6);
  padding: 20px 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
  margin: 0;
  transition: background-color 0.3s ease;
  list-style: none; /* Hide default summary marker */
}

.page-khuyen-mai__faq-question::-webkit-details-marker {
  display: none; /* Hide Webkit default marker */
}

.page-khuyen-mai__faq-question:hover {
  background-color: rgba(255, 246, 214, 0.05);
}

.page-khuyen-mai__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
  transform: rotate(45deg); /* Change + to X or rotate for open state */
}

.page-khuyen-mai__faq-answer {
  font-size: 1em;
  color: rgba(255, 246, 214, 0.7);
  padding: 0 25px 20px;
}

/* --- Responsive Styles --- */

/* Tablet and Mobile */
@media (max-width: 1024px) {
  .page-khuyen-mai__main-title {
    font-size: 2.5em;
  }
  .page-khuyen-mai__section-title {
    font-size: 2em;
  }
  .page-khuyen-mai__container {
    padding: 0 15px;
  }
  .page-khuyen-mai__btn {
    padding: 12px 25px;
    font-size: 1em;
    min-width: unset;
  }
}

/* Mobile specific styles */
@media (max-width: 768px) {
  /* 1. 顶区标题 + 双 CTA */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important; /* Ensure small top padding */
    padding-bottom: 30px;
  }
  .page-khuyen-mai__main-title {
    font-size: clamp(1.8em, 5vw, 2.2em);
    margin-bottom: 10px;
  }
  .page-khuyen-mai__description {
    font-size: 0.95em;
    margin-bottom: 20px;
  }
  .page-khuyen-mai__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding-left: 15px;
    padding-right: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
  .page-khuyen-mai__btn {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 15px !important;
    font-size: 1em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    box-sizing: border-box !important;
  }

  /* 2. 单栏长文容器 */
  .page-khuyen-mai__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__section-title {
    font-size: 1.8em;
    margin-top: 30px;
    margin-bottom: 20px;
  }
  .page-khuyen-mai__text-block {
    font-size: 0.95em;
    text-align: left; /* Adjust alignment for mobile readability */
  }
  .page-khuyen-mai__info-card,
  .page-khuyen-mai__warning-card {
    padding: 20px;
    margin: 20px auto;
  }
  .page-khuyen-mai__card-title {
    font-size: 1.3em;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__list li {
    font-size: 0.95em;
    margin-bottom: 8px;
  }

  /* 3. 通用图片与 figure */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__image-wrapper {
    margin: 20px auto;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__image-caption {
    font-size: 0.85em;
  }

  /* 4. 按钮与按钮容器 (already covered in CTA section, but reinforce general btn rules) */
  .page-khuyen-mai__cta-buttons--bottom {
    margin-top: 30px;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 5. 注册教程与 FAQ 区块 */
  .page-khuyen-mai__steps-grid {
    grid-template-columns: 1fr; /* Single column for steps */
    gap: 20px;
    margin-top: 30px;
  }
  .page-khuyen-mai__step-card {
    padding: 20px;
  }
  .page-khuyen-mai__step-title {
    font-size: 1.2em;
    margin-bottom: 10px;
  }
  .page-khuyen-mai__step-card p {
    font-size: 0.9em;
  }

  .page-khuyen-mai__faq-question {
    font-size: 1.1em;
    padding: 15px 20px;
  }
  .page-khuyen-mai__faq-answer {
    font-size: 0.95em;
    padding: 0 20px 15px;
  }
}