:root {
  --faq-nav-offset: var(--header-offset-desktop);
  --faq-nav-offset-mobile: var(--header-offset-mobile);
  --faq-dark-brown-6: color-mix(in srgb, var(--color-dark-brown) 6%, transparent);
  --faq-dark-brown-10: color-mix(in srgb, var(--color-dark-brown) 10%, transparent);
  --faq-dark-brown-14: color-mix(in srgb, var(--color-dark-brown) 14%, transparent);
  --faq-dark-brown-18: color-mix(in srgb, var(--color-dark-brown) 18%, transparent);
  --faq-white-92: color-mix(in srgb, var(--color-white) 92%, transparent);
  --faq-white-82: color-mix(in srgb, var(--color-white) 82%, transparent);
  --faq-coral-18: color-mix(in srgb, var(--color-coral) 18%, transparent);
}

html {
  scroll-padding-top: calc(var(--faq-nav-offset) + var(--space-lg));
}

body {
  min-height: 100vh;
  padding-top: var(--faq-nav-offset);
  background:
    radial-gradient(circle at top left, rgba(255, 225, 168, 0.28), transparent 30%),
    linear-gradient(180deg, #fffaf4 0%, var(--color-bg) 40%, #fffdf8 100%);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
}

a {
  color: inherit;
  text-decoration: none;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 9999;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: var(--color-coral);
  color: var(--color-text-inverse);
  font-size: var(--font-body-sm);
  font-weight: 600;
  transition: top var(--duration-fast) var(--ease-out-expo);
}

.skip-link:focus {
  top: var(--space-sm);
}

.faq-page {
  display: flex;
  flex-direction: column;
}

.page-header {
  --hero-photo-image: url('../images/hero-photos/醫治FAQ.webp');
  position: relative;
  overflow: hidden;
  padding: clamp(72px, 12vw, 116px) clamp(20px, 5vw, 80px) clamp(42px, 6vw, 60px);
  background:
    radial-gradient(circle at top, rgba(255, 225, 168, 0.24), transparent 36%),
    var(--color-dark-brown);
  text-align: center;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
}

.page-header > * {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  margin-bottom: var(--space-md);
  color: var(--color-text-inverse);
  font-family: var(--font-serif);
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  line-height: var(--leading-tight);
}

.section-verse {
  max-width: 42rem;
  margin: 0 auto;
  color: var(--faq-white-92);
  font-size: var(--font-body-sm);
  line-height: var(--leading-relaxed);
}

.section-verse .verse-text {
  font-family: inherit;
}

.section-verse .verse-citation {
  display: block;
  margin-top: var(--space-sm);
  color: var(--color-warm-peach);
}

.faq-section {
  position: relative;
  padding: clamp(36px, 6vw, 64px) clamp(20px, 5vw, 72px) clamp(88px, 10vw, 132px);
}

.faq-section::before {
  content: '';
  position: absolute;
  inset: 0 auto auto 0;
  width: min(460px, 44vw);
  height: min(460px, 44vw);
  background: radial-gradient(circle, rgba(201, 203, 163, 0.28), transparent 68%);
  pointer-events: none;
}

.faq-shell {
  position: relative;
  z-index: 1;
  width: min(100%, 960px);
  margin: 0 auto;
}

.faq-content {
  width: 100%;
  margin: 0 auto;
}

.faq-list-header {
  max-width: 52rem;
  margin-bottom: clamp(24px, 4vw, 32px);
  text-align: center;
}

.section-label {
  display: inline-block;
  margin-bottom: var(--space-md);
  color: var(--color-coral);
  font-size: var(--font-section-label);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.faq-list-header h2 {
  margin-bottom: var(--space-sm);
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: var(--leading-tight);
}

.faq-list-header p {
  color: var(--color-text-secondary);
  font-size: var(--font-body);
  line-height: var(--leading-relaxed);
}

.faq-accordion {
  display: grid;
  gap: var(--space-md);
}

.faq-item {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--faq-dark-brown-6);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 249, 242, 0.92));
  box-shadow: 0 18px 45px rgba(71, 45, 48, 0.08);
  transition:
    border-color var(--duration-base) var(--ease-out-quart),
    box-shadow var(--duration-base) var(--ease-out-quart),
    transform var(--duration-base) var(--ease-out-quart);
}

.faq-item::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-coral), var(--color-warm-peach));
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out-quart);
}

.faq-item:hover,
.faq-item.is-open {
  border-color: var(--faq-dark-brown-14);
  box-shadow: 0 24px 56px rgba(71, 45, 48, 0.12);
  transform: scale(1.01);
}

.faq-item:hover::before,
.faq-item.is-open::before {
  opacity: 1;
}

.faq-question-heading {
  margin: 0;
}

.faq-question {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: var(--space-md);
  align-items: center;
  width: 100%;
  min-height: 72px;
  padding: clamp(1.1rem, 3vw, 1.5rem) clamp(1rem, 3vw, 1.6rem);
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background-color var(--duration-base) var(--ease-out-quart);
}

.faq-question:hover {
  background: linear-gradient(90deg, rgba(244, 245, 236, 0.86), rgba(255, 245, 230, 0.54));
}

.faq-question:focus-visible {
  outline: 3px solid var(--color-coral);
  outline-offset: -3px;
}

.faq-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3rem;
  min-height: 3rem;
  border-radius: 999px;
  background: var(--color-sage-light);
  color: var(--color-text-secondary);
  font-size: var(--font-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
}

.faq-question-text {
  color: var(--color-text-primary);
  font-family: var(--font-serif);
  font-size: clamp(1.16rem, 2vw, 1.45rem);
  font-weight: 700;
  line-height: 1.4;
}

.faq-indicator {
  position: relative;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--faq-dark-brown-10);
  border-radius: 50%;
  background: var(--faq-white-92);
  transition:
    background-color var(--duration-base) var(--ease-out-quart),
    border-color var(--duration-base) var(--ease-out-quart),
    transform var(--duration-base) var(--ease-out-quart);
}

.faq-indicator::before,
.faq-indicator::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-coral);
  transform: translate(-50%, -50%);
  transition: transform var(--duration-base) var(--ease-out-quart), opacity var(--duration-base) var(--ease-out-quart);
}

.faq-indicator::after {
  width: 2px;
  height: 14px;
}

.faq-item.is-open .faq-indicator {
  border-color: var(--faq-coral-18);
  background: var(--color-coral-light);
}

.faq-item.is-open .faq-indicator::after {
  opacity: 0;
  transform: translate(-50%, -50%) scaleY(0.2);
}

.faq-answer {
  overflow: hidden;
  height: auto;
  opacity: 1;
  transition:
    height var(--duration-slow) var(--ease-out-quart),
    opacity var(--duration-base) var(--ease-out-quart);
}

.faq-answer[hidden] {
  display: block;
  height: 0;
  opacity: 0;
}

.faq-answer-inner {
  padding: 0 clamp(1rem, 3vw, 1.6rem) clamp(1.25rem, 3vw, 1.6rem);
}

.faq-answer-inner p {
  color: var(--color-text-secondary);
  font-size: var(--font-body-sm);
  line-height: var(--leading-body);
}

.faq-answer-inner p + p {
  margin-top: var(--space-md);
}

.faq-reference {
  display: inline;
  margin-inline: 0.08rem;
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
  font-size: 1em;
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.58;
  white-space: nowrap;
}

.faq-inline-verse {
  font-style: italic;
}

@media (max-width: 1024px) {
  .faq-shell {
    width: min(100%, 900px);
  }
}

@media (max-width: 768px) {
  html {
    scroll-padding-top: calc(var(--faq-nav-offset-mobile) + var(--space-md));
  }

  body {
    padding-top: var(--faq-nav-offset-mobile);
  }

  .page-header {
    padding-inline: 20px;
  }

  .faq-section {
    padding-inline: 20px;
  }

  .faq-question {
    grid-template-columns: 1fr auto;
    gap: var(--space-sm);
    padding: 1rem;
  }

  .faq-number {
    grid-column: 1 / -1;
    width: fit-content;
    min-width: 2.6rem;
    min-height: 2.2rem;
    padding-inline: 0.8rem;
  }

  .faq-question-text {
    font-size: 1.08rem;
  }

  .faq-indicator {
    width: 2.5rem;
    height: 2.5rem;
  }

  .faq-answer-inner {
    padding: 0 1rem 1.1rem;
  }

  .faq-reference {
    white-space: normal;
  }
}

@media (max-width: 430px) {
  .page-header,
  .faq-section {
    padding-inline: 16px;
  }

  .faq-question {
    padding: 0.9rem;
  }

  .faq-question-text {
    font-size: 1rem;
    line-height: 1.5;
  }
}

@media (prefers-reduced-motion: reduce) {
  .faq-item,
  .faq-question,
  .faq-indicator,
  .faq-answer {
    transition: none;
  }
}