.page-faq {
  --faq-gap: clamp(1.5rem, 3vw, 2.6rem);
  --faq-hair: rgba(29, 26, 23, .14);
  background: var(--paper);
  color: var(--feather);
}

.page-faq a {
  color: var(--teal-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: .18em;
}

.page-faq a:hover {
  color: var(--signal);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(1.4rem, 4vw, 2.6rem) 0 clamp(2.2rem, 5vw, 3.6rem);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(1.4rem, 3vw, 2.2rem);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 .8rem;
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .faq-hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 4.6vw, 3rem);
  line-height: 1.22;
  letter-spacing: -.02em;
  color: var(--ink);
  max-width: 22ch;
}

.page-faq .faq-hero .lede {
  margin: 0 0 1.5rem;
  max-width: 54ch;
  color: var(--feather);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--city);
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: .4rem;
  padding-left: .9rem;
  position: relative;
}

.page-faq .faq-hero__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .48em;
  width: .3rem;
  height: .3rem;
  border-radius: 50%;
  background: var(--teal);
}

.page-faq .faq-hero__facts span {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--r-lg);
  background: var(--paper-deep);
}

/* ---------- 栏目索引 ---------- */
.page-faq .faq-section {
  padding: clamp(2rem, 5vw, 3.4rem) 0;
  background: var(--paper-deep);
}

.page-faq .faq-section__head {
  margin-bottom: clamp(1.2rem, 3vw, 1.8rem);
  max-width: 62ch;
}

.page-faq .faq-section__head h2 {
  margin: 0 0 .6rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.8vw, 1.9rem);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-section__note {
  margin: 0;
  color: var(--feather);
}

.page-faq .faq-index {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-faq .faq-index__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .45rem;
  padding: clamp(1rem, 2.4vw, 1.5rem);
  background: var(--paper);
  color: inherit;
  text-decoration: none;
  transition: background var(--t-fast) var(--ease);
}

.page-faq .faq-index__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--signal);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--t-mid) var(--ease);
}

.page-faq .faq-index__card:hover,
.page-faq .faq-index__card:focus-visible {
  background: var(--mist);
}

.page-faq .faq-index__card:hover::before,
.page-faq .faq-index__card:focus-visible::before {
  transform: scaleY(1);
}

.page-faq .faq-index__card:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-faq .faq-index__num {
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-faq .faq-index__name {
  display: block;
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}

.page-faq .faq-index__desc {
  display: block;
  font-size: .9rem;
  line-height: 1.65;
  color: var(--city);
}

.page-faq .faq-index__meta {
  display: block;
  margin-top: auto;
  padding-top: .75rem;
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--teal-deep);
}

/* ---------- 主体与侧栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.8rem, 4vw, 2.8rem);
  padding: clamp(2rem, 5vw, 3.4rem) 0 clamp(2.5rem, 6vw, 4.5rem);
}

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

.page-faq .faq-block {
  scroll-margin-top: 6rem;
}

.page-faq .faq-block + .faq-block {
  margin-top: clamp(2.4rem, 6vw, 3.8rem);
  padding-top: clamp(1.8rem, 4vw, 2.6rem);
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-block__eyebrow {
  margin: 0 0 .6rem;
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-faq .faq-block h2 {
  margin: 0 0 .7rem;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  line-height: 1.34;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-block__lede {
  margin: 0 0 1.4rem;
  max-width: 56ch;
  color: var(--feather);
}

.page-faq .faq-block__foot {
  margin: 1.6rem 0 0;
  font-size: .92rem;
  color: var(--city);
}

/* ---------- 步骤 ---------- */
.page-faq .steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .3rem;
}

.page-faq .step {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: .9rem;
  padding: .9rem 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .step:first-child {
  border-top: 0;
}

.page-faq .step__num {
  position: relative;
  display: block;
  padding-top: .18rem;
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--teal-deep);
}

.page-faq .step__num::before {
  content: "";
  position: absolute;
  left: .44rem;
  top: 1.35rem;
  bottom: -1.15rem;
  width: 1px;
  background: linear-gradient(180deg, rgba(47, 124, 130, .55), rgba(47, 124, 130, 0));
}

.page-faq .step:last-child .step__num::before {
  display: none;
}

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

.page-faq .step__title {
  margin: 0 0 .3rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.45;
}

.page-faq .step__body p {
  margin: 0;
  max-width: 58ch;
  color: var(--feather);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 1.6rem;
}

.page-faq .faq-figure__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--r-lg);
  background: var(--paper-deep);
}

.page-faq .faq-figure figcaption {
  margin-top: .55rem;
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--city);
}

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

.page-faq .qa {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  padding: .95rem .2rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.7vw, 1.06rem);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .qa__q::after {
  content: "";
  flex: none;
  margin-left: auto;
  align-self: center;
  width: .55rem;
  height: .55rem;
  border-right: 2px solid var(--teal);
  border-bottom: 2px solid var(--teal);
  transform: rotate(45deg);
  transition: transform var(--t-fast) var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(225deg);
}

.page-faq .qa__q:hover {
  color: var(--teal-deep);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.page-faq .qa__a {
  padding: 0 .2rem 1.15rem;
  color: var(--feather);
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 60ch;
}

/* ---------- 自查清单 ---------- */
.page-faq .checklist {
  margin: 0 0 1.6rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .7rem;
}

.page-faq .checklist li {
  position: relative;
  padding-left: 1.7rem;
  color: var(--feather);
}

.page-faq .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: .78rem;
  height: .78rem;
  border-radius: 3px;
  border: 1px solid var(--teal);
  background: var(--mist);
}

/* ---------- 支持区 ---------- */
.page-faq .faq-support {
  padding: clamp(1.1rem, 3vw, 1.7rem);
  background: var(--mist);
  border-radius: var(--r-md);
}

.page-faq .faq-support__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-support__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .7rem 1rem;
  padding-bottom: .9rem;
  border-bottom: 1px solid rgba(29, 26, 23, .12);
}

.page-faq .faq-support__mail {
  font-family: var(--font-mono);
  font-size: .95rem;
  color: var(--teal-deep);
  word-break: break-all;
}

.page-faq .copy-btn {
  appearance: none;
  border: 1px solid var(--teal);
  background: transparent;
  color: var(--teal-deep);
  font-family: var(--font-body);
  font-size: .84rem;
  line-height: 1;
  padding: .46rem 1rem;
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-faq .copy-btn:hover {
  background: var(--teal);
  color: var(--paper);
}

.page-faq .copy-btn:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-faq .copy-btn[data-copied] {
  background: var(--teal-deep);
  border-color: var(--teal-deep);
  color: var(--paper);
}

.page-faq .faq-support__status {
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--teal-deep);
}

.page-faq .faq-support__note {
  margin: .9rem 0 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--feather);
}

/* ---------- 侧边目录 ---------- */
.page-faq .faq-rail {
  padding-top: 1.1rem;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-rail__title {
  margin: 0 0 .7rem;
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--city);
}

.page-faq .faq-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: .4rem;
  padding: .42rem .8rem;
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-pill);
  font-size: .88rem;
  color: var(--feather);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-rail__link .mono {
  font-size: .7rem;
  letter-spacing: .06em;
  color: var(--teal-deep);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--mist);
  border-color: var(--teal);
  color: var(--teal-deep);
}

.page-faq .faq-rail__link:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .85fr);
    align-items: end;
  }

  .page-faq .faq-hero__figure {
    align-self: start;
  }

  .page-faq .faq-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 15rem;
    align-items: start;
    gap: clamp(2.4rem, 4vw, 3.6rem);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 5.75rem;
    align-self: start;
    padding-top: 0;
    border-top: 0;
  }

  .page-faq .faq-rail__title {
    padding-bottom: .55rem;
    border-bottom: 1px solid var(--faq-hair);
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: .1rem;
    margin-top: .45rem;
  }

  .page-faq .faq-rail__link {
    border-color: transparent;
    padding: .46rem .7rem;
    border-radius: var(--r-sm);
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__card,
  .page-faq .faq-index__card::before,
  .page-faq .qa__q,
  .page-faq .qa__q::after,
  .page-faq .copy-btn,
  .page-faq .faq-rail__link {
    transition: none;
  }
}