.page-faq {
  --faq-border: rgba(138, 155, 178, 0.35);
  --faq-panel: #ffffff;
  --faq-ink: #0a1a2f;
  --faq-muted: #4d5d70;
  background: var(--c-bg);
  color: var(--c-text);
}

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

.page-faq [id] {
  scroll-margin-top: 92px;
}

/* ---------- 首屏 Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: 1.5rem;
  align-items: center;
  padding: clamp(1.5rem, 4vw, 3rem);
  padding-bottom: calc(clamp(1.5rem, 4vw, 3rem) + 1.5rem);
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--gradient-primary);
  color: var(--c-text-on-dark);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 2rem), calc(100% - 5rem) 100%, 0 100%);
  box-shadow: var(--shadow-md);
}

.page-faq .faq-eyebrow {
  margin: 0 0 0.5rem;
  font-family: var(--font-latin);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-secondary);
}

.page-faq .faq-hero h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font-headline);
  font-size: clamp(1.8rem, 4.2vw, 3rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero .lead {
  max-width: 44rem;
  margin: 0;
  opacity: 0.9;
}

.page-faq .faq-hero-figure {
  margin: 0;
  display: flex;
  justify-content: flex-start;
}

.page-faq .faq-hero-figure img {
  filter: drop-shadow(0 14px 28px rgba(0, 0, 0, 0.28));
}

/* ---------- 索引条 + 内容区布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: start;
}

.page-faq .faq-index {
  background: var(--gradient-primary);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: var(--shadow-md);
  color: var(--c-text-on-dark);
  z-index: 5;
}

.page-faq .faq-index-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid rgba(138, 155, 178, 0.22);
}

.page-faq .faq-index-code {
  font-family: var(--font-latin);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  color: var(--c-accent);
}

.page-faq .faq-index-label {
  font-size: 0.8rem;
  color: var(--c-accent);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  color: rgba(255, 255, 255, 0.86);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  transition: background 240ms var(--ease), border-color 240ms var(--ease), color 240ms var(--ease);
}

.page-faq .faq-index-num {
  font-family: var(--font-latin);
  font-size: 0.82rem;
  color: var(--c-accent);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: rgba(255, 92, 53, 0.14);
  border-bottom-color: var(--c-secondary);
  color: #ffffff;
}

.page-faq .faq-content {
  min-width: 0;
}

/* ---------- FAQ 分类面板 ---------- */
.page-faq .faq-section {
  background: var(--faq-panel);
  border: 1px solid var(--faq-border);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-section + .faq-section {
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-section-head {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 1.1rem 1.25rem;
  background: var(--c-bg);
  border-bottom: 1px solid var(--faq-border);
}

.page-faq .faq-section-num {
  font-family: var(--font-latin);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-secondary);
  padding-top: 0.1rem;
}

.page-faq .faq-section-head h2 {
  margin: 0;
  font-family: var(--font-headline);
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-faq .faq-section-desc {
  margin: 0.25rem 0 0;
  font-size: 0.88rem;
  color: var(--faq-muted);
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--faq-border);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-border);
  background: var(--faq-panel);
  scroll-margin-top: 100px;
}

.page-faq .faq-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--faq-ink);
  transition: background 240ms var(--ease), color 240ms var(--ease);
}

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

.page-faq .faq-item summary:hover {
  background: #f4f8fc;
}

.page-faq .faq-item[open] summary {
  background: #f4f8fc;
  color: var(--c-link);
}

.page-faq .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-latin);
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1;
  color: var(--c-secondary);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
}

.page-faq .faq-answer {
  position: relative;
  padding: 0 1.25rem 1.25rem;
  color: var(--faq-muted);
  line-height: 1.7;
}

.page-faq .faq-answer::before {
  content: "";
  display: block;
  height: 3px;
  margin-bottom: 0.9rem;
  background: repeating-linear-gradient(90deg, var(--c-accent) 0 3px, transparent 3px 8px);
  opacity: 0.5;
}

.page-faq .faq-answer p {
  margin: 0 0 0.5rem;
}

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

.page-faq .faq-permalink {
  display: inline-block;
  margin-top: 0.8rem;
  font-family: var(--font-latin);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--c-accent);
  text-decoration: none;
  border-bottom: 1px dotted var(--c-accent);
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-permalink:hover {
  color: var(--c-link);
  border-color: var(--c-link);
}

/* ---------- 仍未解决联系区 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  padding-bottom: calc(clamp(1.5rem, 3.5vw, 2.5rem) + 1rem);
  background: var(--gradient-primary);
  color: var(--c-text-on-dark);
  border: 1px solid var(--faq-border);
  box-shadow: var(--shadow-md);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 1.5rem), calc(100% - 4rem) 100%, 0 100%);
}

.page-faq .faq-contact-block {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.page-faq .faq-contact-eyebrow {
  margin: 0;
  font-family: var(--font-latin);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-secondary);
}

.page-faq .faq-contact h2 {
  margin: 0.5rem 0 0.7rem;
  font-family: var(--font-headline);
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  line-height: 1.3;
}

.page-faq .faq-contact p {
  max-width: 44rem;
  margin: 0;
  opacity: 0.92;
}

.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.1rem;
}

.page-faq .faq-contact .btn-outline {
  border-color: rgba(255, 255, 255, 0.6);
  color: #ffffff;
}

.page-faq .faq-contact .btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

.page-faq .faq-contact-deco {
  margin: 0;
  display: flex;
  justify-content: flex-start;
}

.page-faq .faq-contact-deco img {
  opacity: 0.9;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
}

/* ---------- 平板及以上，首屏与联系区转双列 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr) 220px;
  }

  .page-faq .faq-hero-figure {
    justify-content: flex-end;
  }

  .page-faq .faq-hero-figure img {
    width: 200px;
    height: 200px;
  }

  .page-faq .faq-contact-block {
    grid-template-columns: minmax(0, 1fr) 120px;
  }

  .page-faq .faq-contact-deco {
    justify-content: flex-end;
  }
}

/* ---------- 桌面端：左侧索引条改为垂直粘性列 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    overflow-x: visible;
  }

  .page-faq .faq-index-link {
    border-bottom: 0;
    border-left: 3px solid transparent;
    white-space: normal;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--c-secondary);
  }
}