/* ===== Hỗ Trợ Page Styles (page-support) ===== */
.page-support { color: #333333; background-color: #FFFFFF; }

/* Hero Section */
.page-support__hero-section { padding: 10px 16px 24px; max-width: 1200px; margin: 0 auto; }
.page-support__hero-image-wrap { width: 100%; }
.page-support__hero-image { width: 100%; height: auto; aspect-ratio: 17 / 5; object-fit: cover; display: block; border-radius: 12px; }
.page-support__hero-content { margin-top: 16px; text-align: center; width: 100%; max-width: 800px; margin-left: auto; margin-right: auto; }
.page-support__main-title { font-weight: 800; line-height: 1.3; letter-spacing: -0.02em; color: #017439; max-width: 700px; margin: 0 auto 12px; }
.page-support__hero-desc { font-size: 1rem; line-height: 1.7; color: #4A4A4A; max-width: 700px; margin: 0 auto 20px; }
.page-support__hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; width: 100%; max-width: 100%; box-sizing: border-box; }
.page-support__cta-btn { display: inline-block; padding: 12px 28px; border-radius: 999px; font-weight: 700; text-decoration: none; transition: opacity 0.2s ease; box-sizing: border-box; max-width: 100%; white-space: normal; word-wrap: break-word; }
.page-support__cta-btn--login { background-color: #C30808; color: #FFFF00; }
.page-support__cta-btn--register { background-color: #C30808; color: #FFFF00; }
.page-support__cta-btn:hover { opacity: 0.8; }

/* FAQ Section */
.page-support__faq-section { padding: 24px 16px; background-color: #F9FAFB; }
.page-support__section-header { text-align: center; max-width: 700px; margin: 0 auto 24px; }
.page-support__section-title { color: #017439; font-weight: 700; margin-bottom: 8px; }
.page-support__section-desc { color: #5A5A5A; font-size: 0.95rem; }
.page-support__faq-list { max-width: 800px; margin: 0 auto; }
.page-support__faq-item { background-color: #FFFFFF; border: 1px solid #E5E7EB; border-radius: 10px; margin-bottom: 12px; overflow: hidden; }
.page-support__faq-question { list-style: none; padding: 16px 20px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; color: #017439; }
.page-support__faq-question::-webkit-details-marker { display: none; }
.page-support__faq-toggle { font-size: 1.5rem; line-height: 1; color: #017439; }
.page-support__faq-answer { padding: 0 20px 16px; color: #4B5563; line-height: 1.7; }

/* Guide Section */
.page-support__guide-section { padding: 24px 16px 32px; max-width: 1200px; margin: 0 auto; }
.page-support__guide-title { text-align: center; color: #017439; font-weight: 700; margin-bottom: 24px; }
.page-support__guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.page-support__guide-card { background-color: #FFFFFF; border: 1px solid #E5E7EB; border-radius: 12px; overflow: hidden; display: flex; flex-direction: column; }
.page-support__guide-thumb { width: 100%; }
.page-support__guide-img { width: 100%; height: auto; aspect-ratio: 2 / 1; object-fit: cover; display: block; min-width: 200px; min- }
.page-support__guide-body { padding: 16px; display: flex; flex-direction: column; flex: 1; }
.page-support__guide-card-title { font-size: 1.1rem; color: #017439; margin: 0 0 8px; }
.page-support__guide-card-desc { color: #4A4A4A; font-size: 0.9rem; line-height: 1.6; flex: 1; }
.page-support__guide-link { color: #017439; font-weight: 700; text-decoration: none; margin-top: 12px; display: inline-block; }
.page-support__guide-link:hover { text-decoration: underline; }

/* Contact Section */
.page-support__contact-section { padding: 32px 16px; background-color: #F9FAFB; }
.page-support__contact-box { max-width: 650px; margin: 0 auto; background-color: #FFFFFF; border: 1px solid #E5E7EB; border-radius: 16px; padding: 24px; }
.page-support__contact-title { color: #017439; font-weight: 700; text-align: center; margin-bottom: 8px; }
.page-support__contact-desc { color: #4A4A4A; text-align: center; line-height: 1.6; margin-bottom: 20px; }
.page-support__contact-form { display: flex; flex-direction: column; gap: 16px; }
.page-support__form-group { display: flex; flex-direction: column; }
.page-support__form-label { font-weight: 600; color: #333333; margin-bottom: 6px; }
.page-support__form-input, .page-support__form-textarea { padding: 12px 14px; border: 1px solid #D1D5DB; border-radius: 8px; font-size: 1rem; font-family: inherit; box-sizing: border-box; width: 100%; }
.page-support__form-input:focus, .page-support__form-textarea:focus { outline: 2px solid #017439; outline-offset: 1px; border-color: transparent; }
.page-support__form-submit { background-color: #017439; color: #FFFFFF; padding: 12px 24px; border: none; border-radius: 8px; font-weight: 700; font-size: 1rem; cursor: pointer; transition: opacity 0.2s; }
.page-support__form-submit:hover { opacity: 0.9; }
.page-support__hotline-area { text-align: center; margin-top: 20px; }
.page-support__hotline-text { font-size: 0.9rem; color: #4A4A4A; margin-bottom: 10px; }
.page-support__hotline-btn { display: inline-block; background-color: #017439; color: #FFFFFF; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: 600; }

/* Channels Section */
.page-support__channels-section { padding: 32px 16px; max-width: 1200px; margin: 0 auto; }
.page-support__channels-title { color: #017439; font-weight: 700; text-align: center; margin-bottom: 24px; }
.page-support__channels-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.page-support__channel-card { display: block; padding: 24px; background-color: #FFFFFF; border: 1px solid #E5E7EB; border-radius: 12px; text-decoration: none; transition: box-shadow 0.2s ease; }
.page-support__channel-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.08); }
.page-support__channel-card-title { color: #017439; font-size: 1.1rem; margin: 0 0 8px; }
.page-support__channel-card p { color: #4A4A4A; font-size: 0.9rem; line-height: 1.6; margin: 0; }

/* ----- Responsive (under 1024px) ----- */
@media (max-width: 1024px) {
  .page-support__guide-grid { grid-template-columns: repeat(2, 1fr); }
  .page-support__channels-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ----- Responsive (under 768px) ----- */
@media (max-width: 768px) {
  .page-support { max-width: 100%; overflow-x: hidden; box-sizing: border-box; }
  .page-support img { max-width: 100% !important; height: auto !important; }

  .page-support__hero-section { padding: 10px 12px 20px; }
  .page-support__hero-image { aspect-ratio: 2 / 1; border-radius: 8px; }
  .page-support__main-title { font-size: clamp(1.3rem, 4vw, 1.8rem); }
  .page-support__hero-actions { flex-direction: row; flex-wrap: wrap; }
  .page-support__cta-btn { flex: 1 1 auto; box-sizing: border-box; text-align: center; padding: 12px 16px; font-size: 0.9rem; }

  .page-support__faq-section, .page-support__contact-section { padding-left: 12px; padding-right: 12px; }
  .page-support__faq-question { font-size: 0.95rem; }
  .page-support__faq-answer { font-size: 0.9rem; }

  .page-support__guide-grid { grid-template-columns: 1fr; gap: 16px; }
  .page-support__guide-img { min-height: 200px; }
  .page-support__guide-card-body { padding: 14px; }

  .page-support__contact-box { padding: 16px; }
  .page-support__form-submit { width: 100%; }

  .page-support__channels-grid { grid-template-columns: 1fr; }
  .page-support__channel-card { padding: 20px; }

  .page-support__hero-image-wrap { margin-bottom: 0; }
}

@media (max-width: 480px) {
  .page-support__cta-btn { width: 100%; }
  .page-support__hero-actions { flex-direction: column; }
}