.page-faq {
  --faq-line: var(--wb-rock);
  --faq-soft: var(--wb-coal);
  background: var(--wb-ink);
  color: var(--wb-paper);
  font-family: var(--wb-font-body);
  padding-bottom: 72px;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--wb-font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-faq .wb-crumbs {
  padding-block: 20px 0;
}

.page-faq .wb-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--wb-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--wb-ash);
}

.page-faq .wb-crumbs a {
  color: var(--wb-ash);
  text-decoration: none;
}

.page-faq .wb-crumbs a:hover {
  color: var(--wb-cyan);
}

.page-faq .wb-crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--wb-rock);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 18px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero__lead h1 {
  font-size: clamp(30px, 7vw, 52px);
  line-height: 1.12;
  margin: 10px 0 16px;
}

.page-faq .faq-hero__intro {
  max-width: 48ch;
  margin: 0;
  color: var(--wb-ash);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--wb-radius);
  background: var(--faq-soft);
  overflow: hidden;
  box-shadow: 6px 6px 0 rgba(46, 59, 52, 0.35);
}

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

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  padding-top: 52px;
}

.page-faq .faq-steps__title {
  font-size: clamp(20px, 4vw, 27px);
  line-height: 1.3;
  margin-bottom: 18px;
}

.page-faq .faq-steps__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  border-radius: var(--wb-radius);
}

.page-faq .faq-steps__list > li {
  background: var(--wb-ink);
  padding: 20px 18px 24px;
}

.page-faq .faq-steps__num {
  display: inline-block;
  font-family: var(--wb-font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--wb-amber);
  margin-bottom: 12px;
}

.page-faq .faq-steps__list h3 {
  font-size: 17px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.page-faq .faq-steps__list p {
  margin: 0;
  color: var(--wb-ash);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-steps__list p a {
  color: var(--wb-mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 分类问答 ---------- */
.page-faq .faq-index-wrap {
  padding-top: 60px;
  scroll-margin-top: 24px;
}

.page-faq .faq-index-wrap .wb-section-head {
  margin-bottom: 20px;
}

.page-faq .faq-index {
  display: grid;
  gap: 22px;
}

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

.page-faq .faq-index__tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 10px 14px;
  background: transparent;
  border: 1px solid var(--faq-line);
  border-left: 3px solid transparent;
  border-radius: var(--wb-radius);
  color: var(--wb-ash);
  font-family: var(--wb-font-body);
  font-size: 14px;
  line-height: 1.5;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-index__tab:hover {
  color: var(--wb-paper);
  border-color: var(--wb-mint);
}

.page-faq .faq-index__tab:focus-visible {
  outline: 2px solid var(--wb-cyan);
  outline-offset: 2px;
}

.page-faq .faq-index__tab[aria-selected="true"] {
  background: var(--wb-moss);
  border-color: var(--wb-rock);
  border-left-color: var(--wb-cyan);
  color: var(--wb-paper);
}

.page-faq .faq-index__num {
  font-family: var(--wb-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--wb-amber);
}

.page-faq .faq-index__panels {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-panel {
  display: grid;
  gap: 12px;
  min-width: 0;
}

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

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--wb-rock);
  outline-offset: 4px;
}

/* 折叠条目 */
.page-faq .faq-q {
  background: var(--wb-coal);
  border: 1px solid var(--faq-line);
  border-radius: var(--wb-radius);
  box-shadow: 3px 3px 0 rgba(46, 59, 52, 0.3);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-q[open] {
  background: var(--wb-moss);
  border-color: var(--wb-rock);
}

.page-faq .faq-q summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--wb-paper);
}

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

.page-faq .faq-q summary:focus-visible {
  outline: 2px solid var(--wb-cyan);
  outline-offset: -2px;
}

.page-faq .faq-q summary::before {
  content: "";
  flex: 0 0 6px;
  width: 6px;
  height: 6px;
  margin-top: 0.62em;
  background: var(--wb-rock);
  transition: background 0.2s ease;
}

.page-faq .faq-q[open] summary::before {
  background: var(--wb-cyan);
}

.page-faq .faq-q summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--wb-font-mono);
  font-size: 16px;
  line-height: 1.2;
  color: var(--wb-mint);
}

.page-faq .faq-q[open] summary::after {
  content: "–";
  color: var(--wb-cyan);
}

.page-faq .faq-q__body {
  padding: 0 16px 16px 34px;
  color: var(--wb-ash);
  font-size: 14px;
  line-height: 1.85;
}

.page-faq .faq-q__body p {
  margin: 0 0 10px;
}

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

.page-faq .faq-q__body ul {
  margin: 0 0 10px;
  padding-left: 16px;
}

.page-faq .faq-q__body li {
  margin-bottom: 6px;
}

.page-faq .faq-q__body a {
  color: var(--wb-mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 联系与反馈 ---------- */
.page-faq .faq-contact {
  padding-top: 66px;
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-contact__text h2 {
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1.22;
  margin: 10px 0 14px;
}

.page-faq .faq-contact__text > p {
  margin: 0 0 22px;
  max-width: 54ch;
  color: var(--wb-ash);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  border-radius: var(--wb-radius);
  overflow: hidden;
}

.page-faq .faq-contact__item {
  background: var(--wb-ink);
  padding: 14px 16px;
}

.page-faq .faq-contact__item dt {
  font-family: var(--wb-font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--wb-amber);
  margin-bottom: 6px;
}

.page-faq .faq-contact__item dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--wb-paper);
  word-break: break-word;
}

.page-faq .faq-contact__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.page-faq .faq-contact__figure {
  margin: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--wb-radius);
  background: var(--faq-soft);
  overflow: hidden;
}

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

.page-faq .faq-backtop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 38px;
  padding-bottom: 4px;
  font-family: var(--wb-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--wb-ash);
  text-decoration: none;
  border-bottom: 1px solid var(--wb-rock);
}

.page-faq .faq-backtop:hover {
  color: var(--wb-cyan);
  border-bottom-color: var(--wb-cyan);
}

.page-faq .faq-backtop:focus-visible {
  outline: 2px solid var(--wb-cyan);
  outline-offset: 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-q summary {
    padding: 16px 20px;
  }

  .page-faq .faq-q__body {
    padding: 0 20px 20px 38px;
  }

  .page-faq .faq-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-steps__list > li {
    padding: 24px 22px 28px;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    align-items: start;
    gap: 46px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    align-items: end;
    gap: 48px;
  }

  .page-faq .faq-index {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-index__tab {
    width: 100%;
    justify-content: flex-start;
    white-space: normal;
    padding: 14px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__tab,
  .page-faq .faq-q,
  .page-faq .faq-q summary::before {
    transition: none;
  }
}