:root {
  --primary-color: #11A84E;
  --secondary-color: #22C768;
  --bg-dark-primary: #08160F;
  --bg-card: #11271B;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border-color: #2E7A4E;
  --btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green: #0A4B2C;
  --text-dark-contrast: #333333; /* For light backgrounds */
  --text-light-contrast: #ffffff; /* For dark backgrounds */
}

/* Base styles for the page */
.page-ban-ca {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-light-contrast); /* Default for potentially dark body background */
  background-color: var(--bg-dark-primary); /* Assuming a dark body for this page */
}

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

.page-ban-ca__section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-main);
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
}

.page-ban-ca__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--gold-color);
  border-radius: 2px;
}

.page-ban-ca__text-block {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  text-align: center;
}

.page-ban-ca__text-block:last-child {
  margin-bottom: 0;
}

.page-ban-ca__btn-primary,
.page-ban-ca__btn-secondary,
.page-ban-ca a[class*="button"],
.page-ban-ca a[class*="btn"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%; /* Ensure buttons don't overflow */
  white-space: normal; /* Allow text to wrap */
  word-wrap: break-word;
  text-align: center;
}

.page-ban-ca__btn-primary {
  background: var(--btn-gradient);
  color: var(--text-light-contrast);
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
}

.page-ban-ca__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(42, 209, 111, 0.6);
}

.page-ban-ca__btn-secondary {
  background: transparent;
  color: var(--gold-color);
  border: 2px solid var(--gold-color);
  box-shadow: 0 0 10px rgba(242, 193, 78, 0.3);
}

.page-ban-ca__btn-secondary:hover {
  background: var(--gold-color);
  color: var(--bg-dark-primary);
  transform: translateY(-2px);
  box-shadow: 0 0 15px rgba(242, 193, 78, 0.5);
}

.page-ban-ca__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

.page-ban-ca__cta-buttons--center {
  justify-content: center;
}

.page-ban-ca img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* HERO Section */
.page-ban-ca__hero-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  padding-top: 10px; /* Small top spacing, shared.css handles body padding */
  padding-bottom: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.page-ban-ca__hero-image {
  width: 100%;
  max-height: 600px; /* Constrain hero image height on desktop */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 40px;
}

.page-ban-ca__hero-image img {
  width: 100%;
  height: auto;
  object-fit: cover; /* Desktop: cover to fill space */
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  filter: none; /* No image filters */
}

.page-ban-ca__hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 0 20px;
}

.page-ban-ca__main-title {
  font-size: clamp(36px, 4.5vw, 56px); /* Clamp for responsive H1 */
  font-weight: 800;
  color: var(--gold-color);
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 0 0 15px rgba(242, 193, 78, 0.6);
}

.page-ban-ca__description {
  font-size: clamp(18px, 2.5vw, 24px); /* Clamp for responsive description */
  color: var(--text-main);
  margin-bottom: 30px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

/* Intro Section */
.page-ban-ca__intro-section {
  padding: 80px 0;
  background-color: var(--bg-dark-primary);
}

.page-ban-ca__intro-section .page-ban-ca__text-block {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

/* Features Section */
.page-ban-ca__features-section {
  padding: 80px 0;
  background-color: #0d1e16; /* Slightly lighter dark green */
}

.page-ban-ca__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-ban-ca__feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
  color: var(--text-main);
}

.page-ban-ca__feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
}

.page-ban-ca__feature-card img {
  width: 100%;
  height: 200px; /* Fixed height for feature card images */
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  filter: none; /* No image filters */
}

.page-ban-ca__feature-card .page-ban-ca__card-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--gold-color);
  margin-bottom: 15px;
}

.page-ban-ca__feature-card .page-ban-ca__card-text {
  font-size: 16px;
  color: var(--text-secondary);
}

/* Guide Section */
.page-ban-ca__guide-section {
  padding: 80px 0;
  background-color: var(--bg-dark-primary);
}

.page-ban-ca__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-ban-ca__guide-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  color: var(--text-main);
  position: relative;
  padding-top: 60px;
}

.page-ban-ca__guide-number {
  position: absolute;
  top: 0px;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  width: 60px;
  height: 60px;
  background: var(--btn-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 800;
  color: var(--text-light-contrast);
  box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
}

.page-ban-ca__guide-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--gold-color);
  margin-bottom: 15px;
}

.page-ban-ca__guide-text {
  font-size: 16px;
  color: var(--text-secondary);
  text-align: left;
}

.page-ban-ca__guide-text a {
  color: var(--glow-color);
  text-decoration: underline;
}

.page-ban-ca__guide-text a:hover {
  color: var(--gold-color);
}

/* Strategy Section */
.page-ban-ca__strategy-section {
  padding: 80px 0;
  background-color: #0d1e16; /* Slightly lighter dark green */
}

.page-ban-ca__strategy-content {
  display: flex;
  gap: 40px;
  align-items: center;
  margin-top: 50px;
}

.page-ban-ca__strategy-text {
  flex: 1;
}

.page-ban-ca__strategy-text .page-ban-ca__text-block {
  text-align: left;
}

.page-ban-ca__strategy-list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
  color: var(--text-secondary);
}

.page-ban-ca__strategy-list li {
  margin-bottom: 10px;
  padding-left: 30px;
  position: relative;
  font-size: 17px;
}

.page-ban-ca__strategy-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--glow-color);
  font-weight: bold;
}

.page-ban-ca__strategy-list li strong {
  color: var(--text-main);
}

.page-ban-ca__strategy-image {
  flex: 1;
  text-align: center;
}

.page-ban-ca__strategy-image img {
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  filter: none; /* No image filters */
}

/* Promo Section */
.page-ban-ca__promo-section {
  padding: 80px 0;
  background-color: var(--bg-dark-primary);
}

.page-ban-ca__promo-section .page-ban-ca__text-block {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-ban-ca__promo-list {
  list-style: none;
  padding: 0;
  margin: 30px auto;
  max-width: 900px;
  color: var(--text-secondary);
}

.page-ban-ca__promo-list li {
  margin-bottom: 15px;
  padding-left: 35px;
  position: relative;
  font-size: 18px;
}

.page-ban-ca__promo-list li::before {
  content: '⭐';
  position: absolute;
  left: 0;
  font-size: 20px;
}

.page-ban-ca__promo-list li strong {
  color: var(--text-main);
}

.page-ban-ca__promo-section a {
  color: var(--glow-color);
  text-decoration: underline;
}

.page-ban-ca__promo-section a:hover {
  color: var(--gold-color);
}

/* Download Section */
.page-ban-ca__download-section {
  padding: 80px 0;
  background-color: #0d1e16; /* Slightly lighter dark green */
}

.page-ban-ca__download-content {
  display: flex;
  gap: 40px;
  align-items: center;
  margin-top: 50px;
}

.page-ban-ca__download-text {
  flex: 1;
}

.page-ban-ca__download-text .page-ban-ca__section-title,
.page-ban-ca__download-text .page-ban-ca__text-block {
  text-align: left;
}

.page-ban-ca__download-buttons {
  display: flex;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.page-ban-ca__download-image {
  flex: 1;
  text-align: center;
}

.page-ban-ca__download-image img {
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  filter: none; /* No image filters */
}

/* FAQ Section */
.page-ban-ca__faq-section {
  padding: 80px 0;
  background-color: var(--bg-dark-primary);
}

.page-ban-ca__faq-list {
  margin-top: 50px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

details.page-ban-ca__faq-item {
  margin-bottom: 15px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

details.page-ban-ca__faq-item summary.page-ban-ca__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: var(--text-main);
  font-weight: 600;
}
details.page-ban-ca__faq-item summary.page-ban-ca__faq-question::-webkit-details-marker {
  display: none;
}
details.page-ban-ca__faq-item summary.page-ban-ca__faq-question:hover {
  background: rgba(var(--primary-color), 0.1);
}
.page-ban-ca__faq-qtext {
  flex: 1;
  font-size: 18px;
  line-height: 1.5;
  text-align: left;
}
.page-ban-ca__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: var(--gold-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px;
  text-align: center;
}
details.page-ban-ca__faq-item .page-ban-ca__faq-answer {
  padding: 0 25px 20px;
  background: rgba(var(--deep-green), 0.5);
  border-radius: 0 0 10px 10px;
  color: var(--text-secondary);
  font-size: 16px;
}

details.page-ban-ca__faq-item .page-ban-ca__faq-answer p {
  margin-bottom: 10px;
}
details.page-ban-ca__faq-item .page-ban-ca__faq-answer p:last-child {
  margin-bottom: 0;
}

/* Final CTA Section */
.page-ban-ca__cta-final-section {
  padding: 80px 0;
  background-color: var(--bg-dark-primary);
  text-align: center;
}

.page-ban-ca__cta-final-content {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-ban-ca__cta-final-section .page-ban-ca__section-title {
  color: var(--gold-color);
}

.page-ban-ca__cta-final-section .page-ban-ca__text-block {
  margin-bottom: 30px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-ban-ca__container {
    padding: 0 15px;
  }
  .page-ban-ca__section-title {
    font-size: 32px;
  }
  .page-ban-ca__text-block {
    font-size: 17px;
  }
  .page-ban-ca__hero-image {
    max-height: 500px;
  }
  .page-ban-ca__main-title {
    font-size: clamp(32px, 4vw, 48px);
  }
  .page-ban-ca__description {
    font-size: clamp(16px, 2.2vw, 20px);
  }
  .page-ban-ca__feature-card .page-ban-ca__card-title {
    font-size: 22px;
  }
  .page-ban-ca__guide-number {
    width: 50px;
    height: 50px;
    font-size: 28px;
  }
  .page-ban-ca__guide-item {
    padding-top: 50px;
  }
  .page-ban-ca__guide-title {
    font-size: 20px;
  }
  .page-ban-ca__strategy-content,
  .page-ban-ca__download-content {
    flex-direction: column;
    text-align: center;
  }
  .page-ban-ca__strategy-image,
  .page-ban-ca__download-image {
    order: -1; /* Image above text on medium screens */
    margin-bottom: 30px;
  }
  .page-ban-ca__strategy-text .page-ban-ca__text-block,
  .page-ban-ca__download-text .page-ban-ca__section-title,
  .page-ban-ca__download-text .page-ban-ca__text-block {
    text-align: center;
  }
  .page-ban-ca__strategy-list {
    text-align: left; /* Keep list items left-aligned */
    margin-left: auto;
    margin-right: auto;
    max-width: 600px;
  }
  .page-ban-ca__download-buttons {
    justify-content: center;
  }
  details.page-ban-ca__faq-item summary.page-ban-ca__faq-question {
    padding: 16px 20px;
  }
  .page-ban-ca__faq-qtext {
    font-size: 17px;
  }
  .page-ban-ca__faq-toggle {
    font-size: 24px;
    width: 25px;
  }
  details.page-ban-ca__faq-item .page-ban-ca__faq-answer {
    padding: 0 20px 18px;
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-ban-ca__hero-section {
    padding-top: 10px;
    padding-bottom: 40px;
  }
  .page-ban-ca__hero-image img {
    object-fit: contain !important;
    aspect-ratio: unset !important;
    height: auto !important;
    width: 100% !important;
  }
  .page-ban-ca__main-title {
    font-size: clamp(28px, 8vw, 40px);
    margin-bottom: 15px;
  }
  .page-ban-ca__description {
    font-size: clamp(15px, 4vw, 18px);
    margin-bottom: 25px;
  }
  .page-ban-ca__hero-image {
    max-height: 300px;
  }

  /* 通用图片与容器 */
  .page-ban-ca img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-ban-ca__container,
  .page-ban-ca__section,
  .page-ban-ca__card,
  .page-ban-ca__text-block,
  .page-ban-ca__features-grid,
  .page-ban-ca__guide-steps,
  .page-ban-ca__strategy-content,
  .page-ban-ca__download-content,
  .page-ban-ca__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden;
  }

  /* 装饰主标题 + 长文 SEO 区 */
  .page-ban-ca__section-title {
    font-size: 28px;
    margin-bottom: 30px;
    padding-bottom: 10px;
  }
  .page-ban-ca__section-title::after {
    width: 60px;
    height: 3px;
  }
  .page-ban-ca__text-block {
    font-size: 16px;
    text-align: left;
  }
  .page-ban-ca__strategy-text .page-ban-ca__text-block,
  .page-ban-ca__download-text .page-ban-ca__text-block {
    text-align: left;
  }
  .page-ban-ca__strategy-list,
  .page-ban-ca__promo-list {
    margin-left: 0;
    padding-left: 0;
  }
  .page-ban-ca__strategy-list li,
  .page-ban-ca__promo-list li {
    padding-left: 25px;
    font-size: 16px;
  }
  .page-ban-ca__strategy-list li::before,
  .page-ban-ca__promo-list li::before {
    font-size: 18px;
  }

  /* 按钮与按钮容器 */
  .page-ban-ca__btn-primary,
  .page-ban-ca__btn-secondary,
  .page-ban-ca a[class*="button"],
  .page-ban-ca 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;
    font-size: 16px;
  }
  .page-ban-ca__cta-buttons,
  .page-ban-ca__download-buttons {
    flex-direction: column !important;
    gap: 15px !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Sản phẩm hiển thị khu vực (Features Grid) */
  .page-ban-ca__features-grid {
    grid-template-columns: 1fr;
  }
  .page-ban-ca__feature-card img {
    
  }

  /* Guide Steps */
  .page-ban-ca__guide-steps {
    grid-template-columns: 1fr;
  }

  /* Strategy and Download Sections */
  .page-ban-ca__strategy-content,
  .page-ban-ca__download-content {
    flex-direction: column;
    gap: 30px;
  }
  .page-ban-ca__strategy-image,
  .page-ban-ca__download-image {
    order: -1;
    margin-bottom: 20px;
  }

  /* FAQ Section */
  details.page-ban-ca__faq-item summary.page-ban-ca__faq-question {
    padding: 15px;
  }
  .page-ban-ca__faq-qtext {
    font-size: 16px;
  }
  .page-ban-ca__faq-toggle {
    font-size: 22px;
    width: 20px;
  }
  details.page-ban-ca__faq-item .page-ban-ca__faq-answer {
    padding: 0 15px 15px;
    font-size: 15px;
  }

  /* Section paddings */
  .page-ban-ca__intro-section,
  .page-ban-ca__features-section,
  .page-ban-ca__guide-section,
  .page-ban-ca__strategy-section,
  .page-ban-ca__promo-section,
  .page-ban-ca__download-section,
  .page-ban-ca__faq-section,
  .page-ban-ca__cta-final-section {
    padding: 40px 0;
  }
}