.page-faq {
  --faq-gold-soft: rgba(212, 175, 55, 0.35);
  --faq-ink-muted: rgba(26, 26, 26, 0.75);
  --faq-shadow: 0 6px 24px rgba(11, 61, 46, 0.08);
  --faq-card-radius: 6px;
  background: var(--off-white);
}

/* ===================== Hero ===================== */
.page-faq .faq-hero {
  background-color: var(--primary-deep-green);
  position: relative;
  overflow: hidden;
  padding: 2.25rem 0 0;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 0 47%, rgba(212, 175, 55, 0.08) 47% 51%, transparent 51%),
    linear-gradient(45deg, transparent 0 58%, rgba(212, 175, 55, 0.05) 58% 61%, transparent 61%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--secondary-gold) 0 68%, var(--accent-brick-red) 68% 100%);
  z-index: 2;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
  align-items: center;
  padding-bottom: 2.5rem;
}

.page-faq .faq-hero__text {
  display: flex;
  flex-direction: column;
  gap: 1.125rem;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 0.25rem;
}

.page-faq .faq-hero .breadcrumb__item {
  color: rgba(245, 240, 232, 0.72);
}

.page-faq .faq-hero .breadcrumb__item--current {
  color: var(--secondary-gold);
}

.page-faq .faq-hero .breadcrumb__separator {
  color: rgba(245, 240, 232, 0.4);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--heading-font);
  font-size: clamp(1.875rem, 4.5vw, 3.25rem);
  line-height: 1.18;
  color: var(--pure-white);
  max-width: 15em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  color: rgba(245, 240, 232, 0.82);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 44em;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 0.5rem;
  max-width: 620px;
}

.page-faq .faq-stat {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: var(--faq-card-radius);
  padding: 0.75rem 0.875rem;
  min-width: 0;
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--data-font);
  font-size: 1.75rem;
  line-height: 1.2;
  color: var(--secondary-gold);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 0.125rem;
  font-size: 0.75rem;
  color: rgba(245, 240, 232, 0.68);
  letter-spacing: 0.06em;
}

.page-faq .faq-hero__img {
  width: 100%;
  max-width: 380px;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  justify-self: center;
  border: 1px solid rgba(212, 175, 55, 0.5);
  border-radius: 8px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
}

/* ===================== 主体区 ===================== */
.page-faq .faq-body {
  padding: 3rem 0;
}

.page-faq .faq-body__inner {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}

/* ===================== 左侧索引 ===================== */
.page-faq .faq-index {
  background: var(--pure-white);
  border: 1px solid rgba(138, 138, 138, 0.25);
  border-top: 3px solid var(--secondary-gold);
  border-radius: 4px;
  padding: 1.25rem 1.25rem 0.5rem;
  box-shadow: 0 2px 10px rgba(11, 61, 46, 0.05);
}

.page-faq .faq-index__title {
  margin: 0 0 1rem;
  font-family: var(--data-font);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--neutral-gray);
  border-bottom: 1px solid var(--gold-tint);
  padding-bottom: 0.75rem;
}

.page-faq .faq-index__group {
  margin-bottom: 0.875rem;
  padding-bottom: 0.875rem;
  border-bottom: 1px dashed rgba(138, 138, 138, 0.22);
}

.page-faq .faq-index__group:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.page-faq .faq-index__cat {
  display: inline-block;
  font-family: var(--heading-font);
  font-size: 0.875rem;
  color: var(--primary-deep-green);
  text-decoration: none;
  margin-bottom: 0.375rem;
  transition: color var(--transition-speed) ease;
}

.page-faq .faq-index__cat:hover {
  color: var(--accent-brick-red);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.25rem;
}

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: var(--neutral-gray);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

.page-faq .faq-index__list a::before {
  content: "›";
  color: var(--secondary-gold);
  font-family: var(--data-font);
}

.page-faq .faq-index__list a:hover {
  color: var(--primary-deep-green);
}

/* ===================== 手风琴区 ===================== */
.page-faq .faq-accordion {
  display: grid;
  gap: 3.25rem;
  min-width: 0;
}

.page-faq .faq-section {
  position: relative;
}

.page-faq .faq-section::before {
  content: attr(data-index);
  position: absolute;
  top: -0.75rem;
  right: 0;
  font-family: var(--data-font);
  font-size: 6rem;
  line-height: 1;
  color: rgba(212, 175, 55, 0.1);
  pointer-events: none;
  z-index: 0;
  display: none;
}

.page-faq .faq-section__header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(212, 175, 55, 0.55);
}

.page-faq .faq-section__num {
  font-family: var(--data-font);
  font-size: 2.25rem;
  line-height: 1;
  color: var(--secondary-gold);
  background: var(--light-green-tint);
  border-radius: 4px;
  padding: 0.25rem 0.5rem;
}

.page-faq .faq-section__header h2 {
  margin: 0;
  font-family: var(--heading-font);
  font-size: 1.375rem;
  color: var(--primary-deep-green);
}

/* ===================== FAQ 条目 ===================== */
.page-faq .faq-item {
  position: relative;
  z-index: 1;
  background: var(--pure-white);
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-left: 4px solid var(--secondary-gold);
  border-radius: 4px;
  margin-bottom: 0.875rem;
  box-shadow: 0 2px 8px rgba(11, 61, 46, 0.05);
  transition: box-shadow var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.page-faq .faq-item[open] {
  box-shadow: var(--faq-shadow);
  border-left-color: var(--accent-brick-red);
}

.page-faq .faq-item__summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1.125rem;
  border-radius: 4px;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item__stamp {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-brick-red);
  color: var(--pure-white);
  font-family: var(--data-font);
  font-size: 0.9375rem;
  border-radius: 3px 3px 3px 0;
  transform: rotate(-3deg);
  box-shadow: 0 2px 6px rgba(123, 63, 0, 0.35);
}

.page-faq .faq-item__question {
  flex: 1;
  margin: 0;
  font-size: 0.9688rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--dark-text);
}

.page-faq .faq-item__toggle {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  position: relative;
  border: 1px solid rgba(212, 175, 55, 0.7);
  border-radius: 50%;
  transition: transform var(--transition-speed) ease, background-color var(--transition-speed) ease;
}

.page-faq .faq-item__toggle::before,
.page-faq .faq-item__toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--secondary-gold);
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__toggle::before {
  width: 2px;
  height: 12px;
}

.page-faq .faq-item__toggle::after {
  width: 12px;
  height: 2px;
}

.page-faq .faq-item[open] .faq-item__toggle {
  transform: rotate(45deg);
  background-color: var(--gold-tint);
}

.page-faq .faq-item__answer {
  padding: 0 1.25rem 1.25rem;
  margin-top: -0.5rem;
  color: var(--faq-ink-muted);
  font-size: 0.9375rem;
  line-height: 1.8;
  animation: faq-reveal 0.28s ease;
}

.page-faq .faq-item__answer p {
  margin: 0 0 0.625rem;
}

.page-faq .faq-item__answer p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__answer a {
  color: var(--primary-deep-green);
  text-decoration-color: var(--secondary-gold);
  text-underline-offset: 3px;
}

.page-faq .faq-item__permalink {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.375rem;
  font-family: var(--data-font);
  font-size: 0.6875rem;
  color: var(--neutral-gray);
  text-decoration: none;
  letter-spacing: 0.08em;
}

.page-faq .faq-item__permalink:hover {
  color: var(--accent-brick-red);
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===================== 检索技巧卡片 ===================== */
.page-faq .faq-retrieval {
  position: relative;
  z-index: 1;
  margin-top: 1.5rem;
  background: var(--gold-tint);
  border: 1px solid rgba(212, 175, 55, 0.5);
  border-radius: var(--faq-card-radius);
  overflow: hidden;
  display: grid;
}

.page-faq .faq-retrieval__img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-faq .faq-retrieval__body {
  padding: 1.25rem 1.25rem 1.375rem;
}

.page-faq .faq-retrieval__tag {
  display: inline-block;
  font-family: var(--data-font);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-brick-red);
  border: 1px solid var(--accent-brick-red);
  padding: 0.25rem 0.5rem;
  margin-bottom: 0.625rem;
}

.page-faq .faq-retrieval__body h3 {
  margin: 0 0 0.375rem;
  font-family: var(--heading-font);
  font-size: 1.0625rem;
  color: var(--primary-deep-green);
}

.page-faq .faq-retrieval__body p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(26, 26, 26, 0.75);
}

/* ===================== 支持卡片 ===================== */
.page-faq .faq-support-card {
  position: relative;
  z-index: 1;
  margin-top: 1.5rem;
  background: var(--light-green-tint);
  border: 1px solid rgba(11, 61, 46, 0.18);
  border-radius: var(--faq-card-radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.page-faq .faq-support-card__text h3 {
  margin: 0 0 0.25rem;
  font-family: var(--heading-font);
  font-size: 1.125rem;
  color: var(--primary-deep-green);
}

.page-faq .faq-support-card__text p {
  margin: 0;
  font-size: 0.875rem;
  color: rgba(26, 26, 26, 0.65);
  line-height: 1.6;
}

.page-faq .faq-support-card .btn {
  flex-shrink: 0;
  white-space: nowrap;
  align-self: flex-start;
}

/* ===================== 底部 CTA ===================== */
.page-faq .faq-bottom-cta {
  background-color: var(--deep-black);
  padding: 3.5rem 0;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-bottom-cta::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--secondary-gold), var(--accent-brick-red));
}

.page-faq .faq-bottom-cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 0 62%, rgba(212, 175, 55, 0.05) 62% 66%, transparent 66%),
    linear-gradient(60deg, transparent 0 74%, rgba(212, 175, 55, 0.04) 74% 78%, transparent 78%);
  pointer-events: none;
}

.page-faq .faq-bottom-cta__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.page-faq .faq-bottom-cta h2 {
  margin: 0;
  font-family: var(--heading-font);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  color: var(--pure-white);
}

.page-faq .faq-bottom-cta p {
  margin: 0;
  color: rgba(245, 240, 232, 0.7);
  line-height: 1.7;
  max-width: 36em;
  font-size: 0.9375rem;
}

/* ===================== Tablet 700px ===================== */
@media (min-width: 700px) {
  .page-faq .faq-retrieval {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .page-faq .faq-retrieval__img {
    height: 100%;
    min-height: 190px;
  }

  .page-faq .faq-support-card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-faq .faq-support-card .btn {
    align-self: center;
  }

  .page-faq .faq-hero__img {
    max-width: 420px;
  }
}

/* ===================== Desktop 900px ===================== */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 3rem 0 0;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) 420px;
    gap: 3rem;
    padding-bottom: 3.5rem;
  }

  .page-faq .faq-hero__img {
    justify-self: end;
  }

  .page-faq .faq-body {
    padding: 4rem 0;
  }

  .page-faq .faq-body__inner {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 3.5rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-height) + 24px);
    max-height: calc(100vh - var(--header-height) - 48px);
    overflow-y: auto;
    padding: 1.5rem 1.5rem 0.5rem;
  }

  .page-faq .faq-section::before {
    display: block;
  }

  .page-faq .faq-section__num {
    font-size: 2.5rem;
  }

  .page-faq .faq-section__header h2 {
    font-size: 1.625rem;
  }
}