.page-faq {
  --faq-gold-bg: #FDF8F0;
  --faq-gold-border: #F1C40F;
  --faq-red-tag: #C0392B;
  --faq-text-dark: #2C3E50;
  --faq-text-muted: #5D6D7E;
  --faq-spacing-sm: 1rem;
  --faq-spacing-md: 1.5rem;
  --faq-spacing-lg: 2.5rem;
  --faq-radius: 8px;
  --faq-transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.page-faq > .container {
  max-width: var(--container-width, 1280px);
  margin: 0 auto;
  padding: 0 var(--spacing, 2rem);
  padding-top: calc(var(--header-height, 4rem) + var(--spacing, 2rem));
  padding-bottom: var(--faq-spacing-lg);
}

/* breadcrumb */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body, 'Lora', Georgia, serif);
  font-size: 0.85rem;
  color: var(--faq-text-muted);
  margin-bottom: var(--faq-spacing-lg);
  padding-top: 0.5rem;
}

.page-faq .breadcrumb a {
  color: var(--faq-red-tag);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--faq-transition);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  border-bottom-color: var(--faq-red-tag);
}

/* hero */
.page-faq .faq-hero {
  display: flex;
  align-items: center;
  gap: var(--faq-spacing-lg);
  margin-bottom: var(--faq-spacing-lg);
}

.page-faq .faq-hero__icon {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
}

.page-faq .faq-hero__icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-faq .faq-hero__text {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-hero__title {
  font-family: var(--font-heading, 'Montserrat Black', 'Impact', sans-serif);
  font-size: 2.4rem;
  line-height: 1.15;
  color: var(--color-dark, #1A1A1A);
  margin: 0 0 0.4rem 0;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__desc {
  font-family: var(--font-body, 'Lora', Georgia, serif);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--faq-text-muted);
  margin: 0;
}

.page-faq .faq-hero__desc strong {
  color: var(--faq-red-tag);
  font-weight: 700;
}

/* control panel */
.page-faq .control-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--faq-spacing-sm);
  margin-bottom: var(--faq-spacing-lg);
  padding: var(--faq-spacing-sm) var(--faq-spacing-md);
  background: var(--color-white, #F0F0F0);
  border: 1px solid var(--color-border, #BDC3C7);
  border-radius: var(--faq-radius);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.page-faq .control-panel[data-path]::before {
  content: attr(data-path);
  font-family: var(--font-body, 'Lora', Georgia, serif);
  font-size: 0.8rem;
  color: var(--faq-text-muted);
  white-space: nowrap;
  padding-right: var(--faq-spacing-sm);
  border-right: 1px solid var(--color-border, #BDC3C7);
}

.page-faq .filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq .filter-btn {
  font-family: var(--font-heading, 'Montserrat Black', 'Impact', sans-serif);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.4rem 1rem;
  border: 2px solid transparent;
  border-radius: 100px;
  background: transparent;
  color: var(--faq-text-dark);
  cursor: pointer;
  transition: all var(--faq-transition);
}

.page-faq .filter-btn:hover,
.page-faq .filter-btn:focus-visible {
  border-color: var(--faq-red-tag);
  color: var(--faq-red-tag);
}

.page-faq .filter-btn[data-active] {
  background: var(--faq-red-tag);
  color: #fff;
  border-color: var(--faq-red-tag);
}

/* sections */
.page-faq .faq-section {
  margin-bottom: var(--faq-spacing-lg);
  border-top: 3px solid var(--faq-red-tag);
  padding-top: var(--faq-spacing-md);
}

.page-faq .faq-section__header {
  display: flex;
  align-items: baseline;
  gap: var(--faq-spacing-sm);
  margin-bottom: var(--faq-spacing-md);
}

.page-faq .section-number {
  font-family: var(--font-heading, 'Montserrat Black', 'Impact', sans-serif);
  font-size: 2rem;
  line-height: 1;
  color: var(--faq-red-tag);
  opacity: 0.35;
  flex-shrink: 0;
}

.page-faq .faq-section__title {
  font-family: var(--font-heading, 'Montserrat Black', 'Impact', sans-serif);
  font-size: 1.6rem;
  line-height: 1.2;
  color: var(--color-dark, #1A1A1A);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

/* faq items */
.page-faq .faq-section__body {
  display: flex;
  flex-direction: column;
  gap: var(--faq-spacing-sm);
}

.page-faq .faq-item {
  border: 1px solid var(--color-border, #BDC3C7);
  border-radius: var(--faq-radius);
  background: #fff;
  overflow: hidden;
  transition: box-shadow var(--faq-transition);
}

.page-faq .faq-item:hover {
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.06);
}

.page-faq .faq-item__question {
  display: flex;
  align-items: center;
  gap: var(--faq-spacing-sm);
  width: 100%;
  padding: var(--faq-spacing-md);
  border: none;
  background: transparent;
  font: inherit;
  color: var(--faq-text-dark);
  cursor: pointer;
  text-align: left;
  transition: background var(--faq-transition);
  position: relative;
}

.page-faq .faq-item__question:hover,
.page-faq .faq-item__question:focus-visible {
  background: var(--faq-gold-bg);
}

.page-faq .faq-item__qnum {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: var(--faq-red-tag);
  color: #fff;
  font-family: var(--font-heading, 'Montserrat Black', 'Impact', sans-serif);
  font-size: 0.85rem;
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-faq .faq-item__qtext {
  flex: 1;
  min-width: 0;
  font-family: var(--font-body, 'Lora', Georgia, serif);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-item__icon {
  flex-shrink: 0;
  font-size: 1.6rem;
  font-weight: 300;
  color: var(--faq-gold-border);
  line-height: 1;
  transition: transform var(--faq-transition);
  width: 1.6rem;
  text-align: center;
}

.page-faq .faq-item__question[aria-expanded="true"] .faq-item__icon {
  transform: rotate(45deg);
}

/* answer panel */
.page-faq .faq-item__answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--faq-transition);
  background: var(--faq-gold-bg);
  border-top: 0 solid var(--faq-gold-border);
}

.page-faq .faq-item__answer[aria-hidden="false"] {
  grid-template-rows: 1fr;
  border-top-width: 1px;
}

.page-faq .faq-item__answer-inner {
  overflow: hidden;
  padding: 0 var(--faq-spacing-md);
  padding-left: calc(2.2rem + var(--faq-spacing-sm) + var(--faq-spacing-sm));
}

.page-faq .faq-item__answer[aria-hidden="false"] .faq-item__answer-inner {
  padding-top: var(--faq-spacing-md);
  padding-bottom: var(--faq-spacing-md);
}

.page-faq .faq-item__answer-inner p {
  font-family: var(--font-body, 'Lora', Georgia, serif);
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--faq-text-dark);
  margin: 0 0 0.8rem 0;
}

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

.page-faq .faq-item__answer-inner a {
  color: var(--faq-red-tag);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--faq-transition);
}

.page-faq .faq-item__answer-inner a:hover,
.page-faq .faq-item__answer-inner a:focus-visible {
  color: var(--color-nav-hover, #D35400);
}

.page-faq .faq-item__answer-inner strong {
  color: var(--faq-red-tag);
  font-weight: 700;
}

/* figures inside answers */
.page-faq .faq-figure {
  margin: var(--faq-spacing-md) 0 0 0;
  padding: 0;
  max-width: 100%;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  border: 1px solid var(--color-border, #BDC3C7);
  background: #fff;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  font-family: var(--font-body, 'Lora', Georgia, serif);
  font-size: 0.8rem;
  color: var(--faq-text-muted);
  margin-top: 0.4rem;
  font-style: italic;
}

/* note */
.page-faq .faq-note {
  font-size: 0.85rem !important;
  color: var(--faq-text-muted) !important;
  border-left: 3px solid var(--faq-gold-border);
  padding-left: 0.8rem;
  margin-top: 0.6rem !important;
}

/* cta */
.page-faq .faq-cta {
  margin-top: var(--faq-spacing-lg);
  padding: var(--faq-spacing-md);
  background: var(--color-white, #F0F0F0);
  border-radius: var(--faq-radius);
  text-align: center;
  font-family: var(--font-body, 'Lora', Georgia, serif);
  font-size: 0.95rem;
  color: var(--faq-text-muted);
  border: 1px solid var(--color-border, #BDC3C7);
}

.page-faq .faq-cta a {
  color: var(--faq-red-tag);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq .faq-cta a:hover {
  color: var(--color-nav-hover, #D35400);
}

/* ========== 筛选隐藏逻辑 ========== */
.page-faq .faq-section[data-filter-tag]:not([style*="display: none"]) {
  display: block;
}

/* ========== 移动端优先 ========== */
@media (max-width: 767px) {
  .page-faq > .container {
    padding-left: 1rem;
    padding-right: 1rem;
    padding-top: calc(var(--header-height, 4rem) + 1rem);
  }

  .page-faq .faq-hero {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--faq-spacing-sm);
    margin-bottom: var(--faq-spacing-md);
  }

  .page-faq .faq-hero__icon {
    width: 64px;
    height: 64px;
  }

  .page-faq .faq-hero__title {
    font-size: 1.6rem;
  }

  .page-faq .faq-hero__desc {
    font-size: 0.9rem;
  }

  .page-faq .control-panel {
    flex-direction: column;
    align-items: stretch;
    padding: var(--faq-spacing-sm);
  }

  .page-faq .control-panel[data-path]::before {
    content: attr(data-path);
    border-right: none;
    border-bottom: 1px solid var(--color-border, #BDC3C7);
    padding-right: 0;
    padding-bottom: 0.4rem;
    margin-bottom: 0.4rem;
    display: block;
  }

  .page-faq .filter-group {
    justify-content: flex-start;
  }

  .page-faq .filter-btn {
    font-size: 0.7rem;
    padding: 0.3rem 0.8rem;
  }

  .page-faq .faq-section__header {
    flex-direction: column;
    gap: 0.25rem;
  }

  .page-faq .section-number {
    font-size: 1.6rem;
  }

  .page-faq .faq-section__title {
    font-size: 1.3rem;
  }

  .page-faq .faq-item__question {
    padding: var(--faq-spacing-sm);
    gap: 0.6rem;
  }

  .page-faq .faq-item__qnum {
    width: 1.8rem;
    height: 1.8rem;
    font-size: 0.75rem;
  }

  .page-faq .faq-item__qtext {
    font-size: 0.9rem;
  }

  .page-faq .faq-item__icon {
    font-size: 1.3rem;
    width: 1.3rem;
  }

  .page-faq .faq-item__answer-inner {
    padding-left: var(--faq-spacing-sm);
    padding-right: var(--faq-spacing-sm);
  }

  .page-faq .faq-item__answer[aria-hidden="false"] .faq-item__answer-inner {
    padding-top: var(--faq-spacing-sm);
    padding-bottom: var(--faq-spacing-sm);
  }

  .page-faq .faq-item__answer-inner p {
    font-size: 0.88rem;
  }

  .page-faq .faq-figure img {
    width: 100%;
    height: auto;
  }

  .page-faq .faq-cta {
    font-size: 0.88rem;
    padding: var(--faq-spacing-sm);
  }
}

/* ========== 桌面增强 ========== */
@media (min-width: 768px) {
  .page-faq .faq-hero__title {
    font-size: 2.8rem;
  }

  .page-faq .faq-section__body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--faq-spacing-md);
  }

  .page-faq .faq-section[data-filter-tag="other"] .faq-section__body {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .page-faq .faq-item__answer-inner p {
    font-size: 0.93rem;
  }

  .page-faq .faq-figure {
    max-width: 70%;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero__title {
    font-size: 3.2rem;
  }

  .page-faq .faq-section__body {
    grid-template-columns: 1fr 1fr;
    gap: var(--faq-spacing-lg);
  }

  .page-faq .faq-section[data-filter-tag="other"] .faq-section__body {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .page-faq .faq-figure {
    max-width: 60%;
  }
}