/* style/support.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần lặp lại */

.page-support {
  color: var(--text-main, #FFF3E6); /* Text Main #FFF3E6, Body Background #0D0E12 */
  background-color: var(--background-color, #0D0E12);
}

.page-support__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 60px;
  padding-top: 10px; /* Nhỏ hơn so với --header-offset */
  background-color: var(--background-color, #0D0E12);
}

.page-support__hero-image-wrapper {
  width: 100%;
  max-width: 1200px; /* Để ảnh không quá rộng trên màn hình lớn */
  margin-bottom: 30px;
}

.page-support__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  object-fit: cover;
}

.page-support__hero-content {
  max-width: 900px;
  text-align: center;
  padding: 0 20px;
}

.page-support__main-title {
  font-size: clamp(2.2rem, 4vw, 3rem); /* Sử dụng clamp cho kích thước H1 */
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main, #FFF3E6);
  margin-bottom: 20px;
}

.page-support__intro-text {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--text-main, #FFF3E6);
  margin-bottom: 30px;
}

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

.page-support__btn-primary,
.page-support__btn-secondary {
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-support__btn-primary {
  background: linear-gradient(180deg, var(--auxiliary-color, #FFA53A) 0%, var(--deep-orange, #D96800) 100%);
  color: #ffffff;
  border: none;
}

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

.page-support__btn-secondary {
  background: transparent;
  color: var(--main-color, #FF8C1A);
  border: 2px solid var(--main-color, #FF8C1A);
}

.page-support__btn-secondary:hover {
  background: var(--main-color, #FF8C1A);
  color: #ffffff;
  transform: translateY(-2px);
}

.page-support__video-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles header offset */
  background-color: var(--background-color, #0D0E12);
}

.page-support__video-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
}

.page-support__video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  border-radius: 8px;
  margin-bottom: 20px;
  background-color: #000;
}

.page-support__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  cursor: pointer;
}

.page-support__video-description {
  text-align: center;
  font-size: 1rem;
  color: var(--text-main, #FFF3E6);
  max-width: 800px;
  margin: 0 auto;
}

.page-support__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--text-main, #FFF3E6);
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.3;
}

.page-support__section-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-main, #FFF3E6);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
}

.page-support__highlight {
  color: var(--main-color, #FF8C1A);
  font-weight: 600;
}

.page-support__faq-section {
  padding: 60px 20px;
}

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

.page-support__faq-item {
  background-color: var(--card-bg, #17191F);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--text-main, #FFF3E6);
  border: 1px solid var(--border-color, #A84F0C);
}

.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none; /* For <details> summary */
}

.page-support__faq-question::-webkit-details-marker {
  display: none; /* For <details> summary */
}

.page-support__faq-toggle {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--main-color, #FF8C1A);
}

.page-support__faq-answer {
  padding: 0 20px 20px 20px;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-main, #FFF3E6);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-support__faq-item[open] .page-support__faq-answer {
  max-height: 500px; /* Adjust as needed */
  padding-top: 10px;
}

/* For div-based FAQ fallback if JS is needed */
.page-support__faq-item.active .page-support__faq-answer {
  max-height: 500px !important; /* Adjust as needed */
  padding-top: 10px;
}

.page-support__guides-section {
  padding: 60px 20px;
  background-color: var(--background-color, #0D0E12);
}

.page-support__guide-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-support__card {
  background-color: var(--card-bg, #17191F);
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--border-color, #A84F0C);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: var(--text-main, #FFF3E6);
}

.page-support__card-image {
  width: 100%;
  max-width: 400px; /* Constrain image size within card */
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  object-fit: cover;
  min-width: 200px;
  min-height: 200px;
}

.page-support__card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--main-color, #FF8C1A);
  margin-bottom: 15px;
}

.page-support__card-text {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-main, #FFF3E6);
  flex-grow: 1;
  margin-bottom: 20px;
}

.page-support__card-button {
  padding: 10px 20px;
  background: linear-gradient(180deg, var(--auxiliary-color, #FFA53A) 0%, var(--deep-orange, #D96800) 100%);
  color: #ffffff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: 500;
  transition: opacity 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-support__card-button:hover {
  opacity: 0.9;
}

.page-support__contact-section {
  padding: 60px 20px;
}

.page-support__contact-channels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto 40px auto;
}

.page-support__contact-item {
  background-color: var(--card-bg, #17191F);
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  border: 1px solid var(--border-color, #A84F0C);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: var(--text-main, #FFF3E6);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-support__contact-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
  min-width: 200px; /* Enforce min size */
  min-height: 200px; /* Enforce min size */
}

.page-support__contact-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--main-color, #FF8C1A);
  margin-bottom: 10px;
}

.page-support__contact-text {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-main, #FFF3E6);
  flex-grow: 1;
  margin-bottom: 20px;
}

.page-support__tips {
  max-width: 900px;
  margin: 0 auto;
  background-color: var(--card-bg, #17191F);
  border-radius: 10px;
  padding: 30px;
  border: 1px solid var(--border-color, #A84F0C);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: var(--text-main, #FFF3E6);
}

.page-support__tips-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--auxiliary-color, #FFA53A);
  margin-bottom: 20px;
  text-align: center;
}

.page-support__tips ul {
  list-style: disc;
  padding-left: 25px;
}

.page-support__tips li {
  margin-bottom: 10px;
  font-size: 1rem;
  line-height: 1.6;
}

.page-support__policy-section {
  padding: 60px 20px;
  background-color: var(--background-color, #0D0E12);
}

.page-support__policy-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-support__why-choose-us {
  padding: 60px 20px;
}

.page-support__advantages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto 40px auto;
}

.page-support__advantage-item {
  background-color: var(--card-bg, #17191F);
  border-radius: 10px;
  padding: 25px;
  border: 1px solid var(--border-color, #A84F0C);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: var(--text-main, #FFF3E6);
  text-align: center;
}

.page-support__advantage-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--main-color, #FF8C1A);
  margin-bottom: 10px;
}

.page-support__advantage-text {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-main, #FFF3E6);
}

.page-support__cta-bottom {
  text-align: center;
  margin-top: 40px;
}

.page-support__testimonials-section {
  padding: 60px 20px;
  background-color: var(--background-color, #0D0E12);
}

.page-support__testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-support__testimonial-card {
  background-color: var(--card-bg, #17191F);
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  border: 1px solid var(--border-color, #A84F0C);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: var(--text-main, #FFF3E6);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-support__testimonial-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
  border: 3px solid var(--main-color, #FF8C1A);
  min-width: 200px; /* Enforce min size */
  min-height: 200px; /* Enforce min size */
}

.page-support__testimonial-text {
  font-style: italic;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-main, #FFF3E6);
  margin-bottom: 15px;
  flex-grow: 1;
}

.page-support__testimonial-author {
  font-weight: 600;
  color: var(--auxiliary-color, #FFA53A);
  font-size: 0.95rem;
}

/* 智能颜色对比度保障 - Dark Background */
.page-support__dark-section {
  background-color: var(--background-color, #0D0E12);
  color: var(--text-main, #FFF3E6);
}

/* ==================================================================
   Responsive Design
   ================================================================== */
@media (max-width: 1024px) {
  .page-support__hero-section {
    padding-bottom: 40px;
  }

  .page-support__main-title {
    font-size: clamp(2rem, 5vw, 2.8rem);
  }

  .page-support__section-title {
    font-size: clamp(1.6rem, 4.5vw, 2.2rem);
  }
}

@media (max-width: 768px) {
  .page-support__hero-section {
    padding: 10px 15px 30px 15px;
  }

  .page-support__hero-content {
    padding: 0 15px;
  }

  .page-support__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-support__btn-primary,
  .page-support__btn-secondary {
    width: 100%;
    padding: 12px 20px;
  }

  .page-support__video-section {
    padding: 40px 15px;
    padding-top: 10px !important;
  }

  .page-support__video-container,
  .page-support__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-support video,
  .page-support__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-support__faq-section,
  .page-support__guides-section,
  .page-support__contact-section,
  .page-support__policy-section,
  .page-support__why-choose-us,
  .page-support__testimonials-section {
    padding: 40px 15px;
  }

  .page-support__faq-question {
    padding: 15px;
    font-size: 1rem;
  }

  .page-support__faq-answer {
    padding: 0 15px 15px 15px;
  }

  .page-support__guide-cards,
  .page-support__contact-channels,
  .page-support__policy-cards,
  .page-support__advantages,
  .page-support__testimonials-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-support__card-image,
  .page-support__contact-icon,
  .page-support__testimonial-avatar {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    min-width: 200px !important;
    min-height: 200px !important;
  }

  .page-support__section-description {
    margin-bottom: 30px;
  }

  .page-support img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-support__section,
  .page-support__card,
  .page-support__container,
  .page-support__cta-buttons,
  .page-support__button-group,
  .page-support__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
}

@media (max-width: 480px) {
  .page-support__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }

  .page-support__section-title {
    font-size: clamp(1.4rem, 5.5vw, 2rem);
  }

  .page-support__intro-text,
  .page-support__section-description,
  .page-support__card-text,
  .page-support__contact-text,
  .page-support__advantage-text,
  .page-support__testimonial-text {
    font-size: 0.9rem;
  }

  .page-support__tips ul {
    padding-left: 20px;
  }
}