.page-faq {
  --faq-rail: 208px;
  --faq-gap: 26px;
  --faq-panel-pad: 20px;
}

.page-faq .breadcrumb {
  padding-top: 22px;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 34px;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -40px;
  right: -80px;
  width: 260px;
  height: 220px;
  background: linear-gradient(140deg, var(--signal) 0%, rgba(255, 106, 26, 0) 70%);
  opacity: 0.22;
  clip-path: polygon(100% 0, 18% 0, 100% 100%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero .kicker,
.page-faq .faq-hero h1,
.page-faq .faq-hero .lead,
.page-faq .faq-hero .faq-quick {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
  font-size: clamp(2rem, 7.4vw, 3.9rem);
  color: var(--bone);
  margin: 12px 0 0;
  max-width: 18ch;
}

.page-faq .faq-hero .lead {
  margin-top: 18px;
  max-width: 62ch;
  color: var(--bone);
  opacity: 0.86;
}

.page-faq .faq-quick {
  list-style: none;
  margin: 26px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-size: 0.86rem;
  color: var(--stone);
  letter-spacing: 0.01em;
}

.page-faq .faq-quick li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-quick .num {
  color: var(--gold);
}

/* 两段式：主题索引 + 问答列 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-bottom: 72px;
  align-items: start;
}

.page-faq .topic-rail {
  min-width: 0;
}

.page-faq .rail-title {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .topic-list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .topic-link {
  flex: none;
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--pitch);
  color: var(--bone);
  font-size: 0.86rem;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .topic-link:hover,
.page-faq .topic-link:focus-visible {
  background: var(--moss);
  border-color: var(--electric);
  color: var(--bone);
}

.page-faq .faq-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 54px;
}

/* 分组 */
.page-faq .faq-section {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq .faq-section .section-head {
  border-left: 3px solid var(--signal);
  padding-left: 16px;
  margin-bottom: 22px;
}

.page-faq .faq-section .section-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(1.35rem, 4.6vw, 1.95rem);
  line-height: 1.2;
  color: var(--bone);
  margin: 6px 0 0;
}

.page-faq .section-note {
  margin: 10px 0 0;
  color: var(--stone);
  font-size: 0.9rem;
  max-width: 58ch;
  line-height: 1.7;
}

/* 图片 */
.page-faq .faq-figure {
  margin: 0 0 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--pitch);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure.is-wide img {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-figure.is-portrait img {
  aspect-ratio: 3 / 4;
}

.page-faq .faq-figure .media-caption {
  display: block;
  padding: 10px 16px 14px;
  font-size: 0.8rem;
  color: var(--stone);
  border-top: 1px solid var(--line);
}

.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.page-faq .faq-split .faq-figure {
  margin-bottom: 0;
}

/* 问答 */
.page-faq .accordion {
  border-top: 1px solid var(--line);
}

.page-faq .accordion-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .accordion-trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 2px;
  background: none;
  border: 0;
  color: var(--bone);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

.page-faq .accordion-trigger:hover {
  color: var(--electric);
}

.page-faq .accordion-trigger:focus-visible {
  outline: 2px solid var(--electric);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-dot {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 0.62em;
  border-radius: 50%;
  background: var(--electric);
  box-shadow: 0 0 0 4px rgba(34, 223, 210, 0.12);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .accordion-trigger[aria-expanded="true"] .faq-dot {
  background: var(--signal);
  box-shadow: 0 0 0 5px rgba(255, 106, 26, 0.16);
  transform: scale(1.15);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-caret {
  flex: none;
  width: 11px;
  height: 11px;
  margin-top: 0.55em;
  border-right: 2px solid var(--stone);
  border-bottom: 2px solid var(--stone);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .accordion-trigger[aria-expanded="true"] .faq-caret {
  transform: rotate(-135deg);
  border-color: var(--signal);
}

.page-faq .accordion-panel {
  padding: 0 2px 20px 25px;
}

.page-faq .accordion-panel[hidden] {
  display: none;
}

.page-faq .accordion-panel p {
  margin: 0;
  max-width: 66ch;
  color: var(--bone);
  opacity: 0.85;
  line-height: 1.8;
}

.page-faq .accordion-panel a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 223, 210, 0.4);
  padding-bottom: 1px;
}

.page-faq .accordion-panel a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-faq .faq-mark {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  color: var(--gold);
  background: rgba(227, 183, 91, 0.13);
  border-radius: 6px;
  padding: 1px 7px;
  white-space: nowrap;
}

/* 人工支持带 */
.page-faq .faq-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  background: var(--signal);
  color: var(--ink);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.page-faq .faq-cta-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: 1.3rem;
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .faq-cta .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-cta .contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 10px 12px;
  background: rgba(11, 15, 13, 0.14);
  border-radius: var(--radius-md);
}

.page-faq .faq-cta .contact-label {
  flex: none;
  min-width: 74px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: rgba(11, 15, 13, 0.72);
}

.page-faq .faq-cta .contact-value {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .copy-chip {
  flex: none;
  padding: 6px 12px;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bone);
  font-family: inherit;
  font-size: 0.76rem;
  line-height: 1;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .copy-chip:hover,
.page-faq .copy-chip:focus-visible {
  background: var(--pitch);
  color: var(--electric);
}

.page-faq .copy-chip[data-copied="true"] {
  background: var(--electric);
  color: var(--ink);
}

.page-faq .faq-cta-note {
  margin: 0 0 18px;
  font-size: 0.94rem;
  line-height: 1.75;
  color: rgba(11, 15, 13, 0.82);
}

.page-faq .faq-cta-links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-cta-links .btn-signal {
  background: var(--ink);
  color: var(--bone);
  border-color: var(--ink);
}

.page-faq .faq-cta-links .btn-signal:hover {
  background: var(--pitch);
  border-color: var(--pitch);
  color: var(--electric);
}

.page-faq .faq-cta-links .btn-ghost {
  border-color: rgba(11, 15, 13, 0.55);
  color: var(--ink);
}

.page-faq .faq-cta-links .btn-ghost:hover {
  background: rgba(11, 15, 13, 0.12);
  color: var(--ink);
}

.page-faq .faq-cta-sub {
  margin: 16px 0 0;
  font-size: 0.8rem;
  color: rgba(11, 15, 13, 0.72);
}

.page-faq .faq-cta-sub a {
  color: rgba(11, 15, 13, 0.85);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-cta-sub a:hover {
  color: var(--ink);
}

/* 中等屏 */
@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 40px 0 44px;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
    padding: 32px 30px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    gap: 30px;
  }

  .page-faq .accordion-trigger {
    font-size: 1.05rem;
  }
}

/* 桌面：左侧固定主题索引 */
@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 48px;
  }

  .page-faq .topic-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .page-faq .topic-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .topic-link {
    border-radius: var(--radius-sm);
    border-color: transparent;
    background: transparent;
    padding: 10px 12px;
    border-left: 2px solid var(--line);
    white-space: normal;
  }

  .page-faq .topic-link:hover,
  .page-faq .topic-link:focus-visible {
    background: var(--pitch);
    border-color: var(--line);
    border-left-color: var(--signal);
    color: var(--bone);
  }

  .page-faq .faq-body {
    gap: 64px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: 40px;
  }
}