.page-faq {
  --faq-body-text: #D9D6CB;
  background-color: var(--ink);
  background-image: repeating-linear-gradient(90deg, rgba(242, 239, 230, .014) 0 1px, transparent 1px 132px);
  color: var(--paper);
  padding-bottom: clamp(3rem, 9vw, 6rem);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding: clamp(1.4rem, 4vw, 2.4rem) 0 clamp(2.4rem, 7vw, 4.2rem);
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  filter: grayscale(.35) contrast(1.05);
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(162deg, rgba(7, 28, 23, .52) 0%, rgba(7, 28, 23, .9) 56%, var(--ink) 100%);
}

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

.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin-bottom: clamp(1.4rem, 4vw, 2.4rem);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-faq .faq-crumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color .18s var(--ease);
}

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--lime);
}

.page-faq .faq-crumb [aria-current="page"] {
  color: var(--paper);
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin: 0 0 1rem;
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--lime);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--clay);
}

.page-faq .faq-hero h1 {
  margin: 0 0 1rem;
  max-width: 18ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 6.2vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 0 0 1.8rem;
  max-width: 56ch;
  font-size: clamp(.94rem, 2.2vw, 1.05rem);
  line-height: 1.85;
  color: var(--faq-body-text);
}

.page-faq .faq-hero__strip {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem 1.9rem;
  margin: 0;
  padding: 1.1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__strip li {
  display: flex;
  align-items: baseline;
  gap: .4rem;
  font-size: .78rem;
  line-height: 1.5;
  color: var(--muted);
}

.page-faq .faq-hero__strip .num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--lime);
}

.page-faq .faq-hero__strip small {
  font-size: .78rem;
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  padding-top: clamp(2rem, 5vw, 3.4rem);
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__title {
  margin: 0 0 .85rem;
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--muted);
}

.page-faq .faq-index__list {
  display: flex;
  gap: .5rem;
  margin: 0;
  padding: 0 0 .4rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__list li {
  flex: none;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .55rem .9rem;
  border: 1px solid var(--line);
  background: rgba(242, 239, 230, .03);
  font-size: .82rem;
  letter-spacing: .05em;
  color: var(--paper);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-index__link:hover {
  border-color: var(--lime);
  color: var(--lime);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .06em;
  color: var(--clay);
}

.page-faq .faq-index__note {
  display: none;
}

/* ---------- 答案列 ---------- */
.page-faq .faq-answers {
  display: grid;
  gap: clamp(2.5rem, 6vw, 4.2rem);
  min-width: 0;
}

.page-faq .faq-section {
  scroll-margin-top: calc(var(--bar-h) + 1rem);
}

.page-faq .faq-section__head {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding-bottom: .85rem;
  border-bottom: 2px solid var(--line);
  margin-bottom: 1rem;
}

.page-faq .faq-section__no {
  flex: none;
  padding: .24rem .5rem;
  background: var(--clay);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .05em;
}

.page-faq .faq-section h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.32rem, 3.6vw, 1.8rem);
  line-height: 1.22;
  color: var(--paper);
}

.page-faq .faq-section__intro {
  margin: 0 0 1.35rem;
  max-width: 58ch;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: .95rem 0 .95rem .95rem;
  border-left: 2px solid transparent;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  transform: translateY(.08em);
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--lime);
}

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

.page-faq .faq-item[open] summary {
  border-left-color: var(--lime);
}

.page-faq .faq-item summary:hover {
  color: var(--lime);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-faq .faq-item__body {
  max-width: 62ch;
  padding: 0 .4rem 1.25rem 1.1rem;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--faq-body-text);
}

.page-faq .faq-item__body p {
  margin: 0 0 .7rem;
}

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

.page-faq .faq-item__body a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: .22em;
}

.page-faq .faq-item__body a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* ---------- 费用区配图 ---------- */
.page-faq .faq-figure {
  margin: 1.75rem 0 0;
  max-width: 300px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: grayscale(.2);
}

.page-faq .faq-figure figcaption {
  margin-top: .65rem;
  font-size: .78rem;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--muted);
}

/* ---------- 区块外链按钮 ---------- */
.page-faq .faq-more {
  margin: 1.3rem 0 0;
}

.page-faq .faq-more a {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .62rem 1.1rem;
  border: 1px solid var(--lime);
  font-size: .84rem;
  letter-spacing: .06em;
  color: var(--lime);
  text-decoration: none;
  transition: background .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-more a:hover {
  background: var(--lime);
  color: var(--ink);
}

.page-faq .faq-more a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

/* ---------- 联系卡片 ---------- */
.page-faq .faq-contact {
  margin-top: 2rem;
  padding: 1.4rem 1.15rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--clay);
  background: rgba(18, 23, 21, .6);
}

.page-faq .faq-contact__lead {
  margin: 0;
  font-size: .98rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper);
}

.page-faq .faq-contact__list {
  display: grid;
  gap: .6rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact__list li {
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr);
  gap: .5rem;
  font-size: .89rem;
  line-height: 1.7;
  color: var(--faq-body-text);
  word-break: break-word;
}

.page-faq .faq-contact__list span {
  padding-top: .18rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-faq .faq-contact__more {
  display: inline-block;
  margin-top: 1.1rem;
  padding-bottom: .15rem;
  border-bottom: 1px solid var(--lime);
  font-size: .84rem;
  letter-spacing: .06em;
  color: var(--lime);
  text-decoration: none;
}

.page-faq .faq-contact__more:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__lead {
    max-width: 52ch;
  }

  .page-faq .faq-body {
    grid-template-columns: 214px minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4.2rem);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bar-h) + 1.5rem);
  }

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

  .page-faq .faq-index__list li {
    flex: none;
  }

  .page-faq .faq-index__link {
    width: 100%;
    padding: .72rem .6rem .72rem 1rem;
    border: 0;
    border-left: 2px solid var(--line);
    background: none;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover {
    border-left-color: var(--lime);
    background: rgba(200, 255, 77, .06);
  }

  .page-faq .faq-index__note {
    display: block;
    margin: 1.4rem 0 0;
    padding-left: 1rem;
    border-left: 2px solid var(--line);
    font-size: .78rem;
    line-height: 1.75;
    color: var(--muted);
  }

  .page-faq .faq-item summary {
    font-size: 1.04rem;
  }

  .page-faq .faq-contact {
    padding: 1.6rem 1.6rem;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-body {
    grid-template-columns: 236px minmax(0, 1fr);
  }

  .page-faq .faq-figure {
    max-width: 340px;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}