/* style/promo.css */

:root {
  --page-promo-primary-color: #F2C14E;
  --page-promo-secondary-color: #FFD36B;
  --page-promo-card-bg: #111111;
  --page-promo-main-bg: #0A0A0A;
  --page-promo-text-main: #FFF6D6;
  --page-promo-border-color: #3A2A12;
  --page-promo-glow-color: #FFD36B;
  --page-promo-btn-gradient: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
}

.page-promo {
  background-color: var(--page-promo-main-bg);
  color: var(--page-promo-text-main);
  font-family: Arial, sans-serif;
  line-height: 1.6;
  padding-top: 10px; /* Small top padding for the first section, body handles main offset */
}

.page-promo__hero-section {
  position: relative;
  overflow: hidden;
  padding-bottom: 50px;
}

.page-promo__hero-carousel {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  overflow: hidden;
}

.page-promo__hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out, transform 1s ease-in-out;
  transform: translateX(100%);
}

.page-promo__hero-slide.active {
  opacity: 1;
  transform: translateX(0%);
}

.page-promo__hero-slide.prev {
  transform: translateX(-100%);
  opacity: 0;
}

.page-promo__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-promo__hero-content-wrapper {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0) 100%);
  padding: 40px 20px;
  box-sizing: border-box;
}

.page-promo__hero-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.page-promo__main-title {
  font-size: 2.8em;
  font-weight: 700;
  color: var(--page-promo-text-main);
  margin-bottom: 20px;
  line-height: 1.2;
  letter-spacing: -0.03em;
  max-width: 100%;
}

.page-promo__hero-description {
  font-size: 1.1em;
  color: rgba(255, 246, 214, 0.8);
  margin-bottom: 30px;
}

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

.page-promo__hero-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.page-promo__hero-dot {
  width: 12px;
  height: 12px;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.page-promo__hero-dot.active {
  background-color: var(--page-promo-secondary-color);
}

.page-promo__section {
  padding: 60px 0;
}

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

.page-promo__section-title {
  font-size: 2.2em;
  color: var(--page-promo-text-main);
  text-align: center;
  margin-bottom: 30px;
  font-weight: 600;
}

.page-promo__section-description {
  font-size: 1.1em;
  color: rgba(255, 246, 214, 0.7);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
}

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

.page-promo__card {
  background-color: var(--page-promo-card-bg);
  border: 1px solid var(--page-promo-border-color);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  text-align: center;
  padding-bottom: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-promo__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin-bottom: 20px;
}

.page-promo__card-title {
  font-size: 1.5em;
  color: var(--page-promo-secondary-color);
  margin-bottom: 15px;
  padding: 0 15px;
}

.page-promo__card-text {
  color: rgba(255, 246, 214, 0.7);
  font-size: 1em;
  margin-bottom: 20px;
  padding: 0 15px;
  flex-grow: 1;
}

.page-promo__btn-primary,
.page-promo__btn-secondary {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 5px;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-promo__btn-primary {
  background: var(--page-promo-btn-gradient);
  color: #ffffff;
  border: none;
  box-shadow: 0 3px 10px rgba(242, 193, 78, 0.4);
}

.page-promo__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.page-promo__btn-secondary {
  background-color: transparent;
  color: var(--page-promo-secondary-color);
  border: 2px solid var(--page-promo-secondary-color);
}

.page-promo__btn-secondary:hover {
  background-color: var(--page-promo-secondary-color);
  color: var(--page-promo-card-bg);
  transform: translateY(-2px);
}

.page-promo__dark-section {
  background-color: #1a1a1a;
}

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

.page-promo__promo-item {
  background-color: var(--page-promo-card-bg);
  border: 1px solid var(--page-promo-border-color);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  text-align: center;
  padding-bottom: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

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

.page-promo__item-title {
  font-size: 1.4em;
  color: var(--page-promo-primary-color);
  margin-bottom: 10px;
  padding: 0 15px;
}

.page-promo__item-text {
  color: rgba(255, 246, 214, 0.7);
  font-size: 0.95em;
  margin-bottom: 20px;
  padding: 0 15px;
  flex-grow: 1;
}

.page-promo__app-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
  text-align: center;
}

.page-promo__feature-item {
  background-color: var(--page-promo-card-bg);
  border: 1px solid var(--page-promo-border-color);
  border-radius: 10px;
  padding: 30px 20px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-promo__feature-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
}

.page-promo__feature-title {
  font-size: 1.3em;
  color: var(--page-promo-secondary-color);
  margin-bottom: 10px;
}

.page-promo__feature-text {
  color: rgba(255, 246, 214, 0.7);
  font-size: 0.9em;
}

.page-promo__app-download-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

.page-promo__why-choose-us .page-promo__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-promo__feature-box {
  background-color: var(--page-promo-card-bg);
  border: 1px solid var(--page-promo-border-color);
  border-radius: 10px;
  padding: 30px 20px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  text-align: center;
}

.page-promo__box-title {
  font-size: 1.4em;
  color: var(--page-promo-primary-color);
  margin-bottom: 10px;
}

.page-promo__box-text {
  color: rgba(255, 246, 214, 0.7);
  font-size: 0.95em;
}

.page-promo__register-login .page-promo__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

.page-promo__faq-section {
  padding: 60px 0;
}

.page-promo__faq-list {
  max-width: 900px;
  margin: 0 auto;
  border: 1px solid var(--page-promo-border-color);
  border-radius: 10px;
  overflow: hidden;
}

.page-promo__faq-item {
  border-bottom: 1px solid var(--page-promo-border-color);
}

.page-promo__faq-item:last-child {
  border-bottom: none;
}

.page-promo__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  background-color: var(--page-promo-card-bg);
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.page-promo__faq-question:hover {
  background-color: #1a1a1a;
}

.page-promo__faq-question h3 {
  color: var(--page-promo-text-main);
  font-size: 1.15em;
  margin: 0;
}

.page-promo__faq-toggle {
  font-size: 1.8em;
  color: var(--page-promo-secondary-color);
  font-weight: bold;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-promo__faq-item.active .page-promo__faq-toggle {
  transform: rotate(45deg);
}

.page-promo__faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 25px;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: rgba(255, 246, 214, 0.8);
  background-color: #1a1a1a;
}

.page-promo__faq-item.active .page-promo__faq-answer {
  max-height: 1000px !important; /* Ensure it expands sufficiently */
  padding: 15px 25px;
}

/* Responsive styles */
@media (max-width: 1024px) {
  .page-promo__main-title {
    font-size: 2.2em;
  }
  .page-promo__section-title {
    font-size: 1.8em;
  }
}

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

  .page-promo__hero-section {
    padding-bottom: 30px;
  }

  .page-promo__hero-content-wrapper {
    padding: 20px 15px;
  }

  .page-promo__main-title {
    font-size: 1.8em;
    margin-bottom: 15px;
  }

  .page-promo__hero-description {
    font-size: 1em;
    margin-bottom: 20px;
  }

  .page-promo__hero-buttons {
    flex-direction: column;
    gap: 10px;
  }

  .page-promo__btn-primary,
  .page-promo__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-promo__hero-dots {
    bottom: 10px;
  }

  .page-promo__section {
    padding: 40px 0;
  }

  .page-promo__container {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-promo__section-title {
    font-size: 1.6em;
    margin-bottom: 20px;
  }

  .page-promo__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  .page-promo__promo-cards,
  .page-promo__promo-grid,
  .page-promo__app-features,
  .page-promo__why-choose-us .page-promo__features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-promo__card,
  .page-promo__promo-item,
  .page-promo__feature-item,
  .page-promo__feature-box {
    padding: 20px 15px;
  }

  .page-promo__card-image,
  .page-promo__promo-image {
    height: 180px;
  }

  .page-promo__card-title,
  .page-promo__item-title {
    font-size: 1.3em;
  }

  .page-promo__feature-icon {
    width: 80px;
    height: 80px;
  }

  .page-promo__app-download-buttons,
  .page-promo__register-login .page-promo__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }

  .page-promo__faq-list {
    margin: 0;
    border-radius: 0;
  }

  .page-promo__faq-question {
    padding: 15px 20px;
  }

  .page-promo__faq-question h3 {
    font-size: 1em;
  }

  .page-promo__faq-toggle {
    font-size: 1.5em;
  }

  .page-promo__faq-answer {
    padding: 10px 20px;
  }

  /* Force responsive images */
  .page-promo img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-promo__section,
  .page-promo__card,
  .page-promo__container,
  .page-promo__promo-item,
  .page-promo__feature-item,
  .page-promo__feature-box,
  .page-promo__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* HERO主图区域的padding-top必须在移动端媒体查询中重新设置 */
  .page-promo__hero-section {
    padding-top: var(--header-offset, 120px) !important; /* Mobile: controlled by shared's media queries */
  }

  /* Buttons in flex containers */
  .page-promo__hero-buttons,
  .page-promo__app-download-buttons,
  .page-promo__register-login .page-promo__cta-buttons {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 10px;
  }

  .page-promo__hero-buttons a,
  .page-promo__app-download-buttons a,
  .page-promo__register-login .page-promo__cta-buttons a {
    width: 100%;
    text-align: center;
  }

}

@media (max-width: 480px) {
  .page-promo__main-title {
    font-size: 1.5em;
  }
  .page-promo__hero-description {
    font-size: 0.9em;
  }
  .page-promo__section-title {
    font-size: 1.4em;
  }
  .page-promo__card-title,
  .page-promo__item-title {
    font-size: 1.1em;
  }
  .page-promo__feature-title {
    font-size: 1.1em;
  }
  .page-promo__box-title {
    font-size: 1.2em;
  }
}