.page-faq {
  --faq-card: rgba(19, 53, 79, 0.58);
  --faq-card-deep: rgba(10, 27, 44, 0.66);
  --faq-pad: clamp(1.15rem, 3.5vw, 1.85rem);
  background-color: var(--ink);
  background-image:
    radial-gradient(115% 55% at 100% 0%, rgba(216, 179, 106, 0.09), transparent 62%),
    radial-gradient(90% 45% at 0% 38%, rgba(230, 106, 78, 0.07), transparent 66%);
  color: var(--white);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
  overflow-x: hidden;
}

.page-faq .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

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

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: clamp(1rem, 3vw, 1.75rem);
}

.page-faq .faq-crumb .breadcrumb__link,
.page-faq .faq-crumb .breadcrumb__current {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-faq .faq-crumb .breadcrumb__link:hover,
.page-faq .faq-crumb .breadcrumb__link:focus-visible {
  color: var(--gold-soft);
}

.page-faq .faq-crumb .breadcrumb__current {
  color: var(--gold-soft);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(1.75rem, 5vw, 3.5rem) 0 clamp(1.5rem, 4vw, 2.35rem);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.8rem, 5.2vw, 3.15rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0.55rem 0 0;
  max-width: 21ch;
}

.page-faq .faq-hero h1::after {
  content: "";
  display: block;
  width: clamp(62px, 18vw, 132px);
  height: 3px;
  margin-top: clamp(0.85rem, 2.4vw, 1.25rem);
  background: linear-gradient(90deg, var(--gold), rgba(216, 179, 106, 0));
}

.page-faq .faq-hero .lede {
  margin: 1rem 0 0;
  color: rgba(247, 244, 238, 0.8);
  max-width: 58ch;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.45rem;
}

/* ---------- 高频索引 ---------- */
.page-faq .faq-hot {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  padding: clamp(1.5rem, 4vw, 2.6rem) 0;
  border-top: 1px solid var(--line);
}

.page-faq .hot-card {
  position: relative;
  background: var(--faq-card);
  border: 1px solid var(--line-gold);
  padding: var(--faq-pad);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-faq .hot-card__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--line);
}

.page-faq .hot-card__head h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.05rem, 2.4vw, 1.32rem);
  margin: 0;
}

.page-faq .hot-card__head .mono {
  font-size: 0.7rem;
  color: var(--coral);
  white-space: nowrap;
}

.page-faq .hot-list {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
}

.page-faq .hot-list li + li {
  border-top: 1px dashed rgba(124, 147, 163, 0.2);
}

.page-faq .hot-list a {
  display: grid;
  grid-template-columns: 2.9rem minmax(0, 1fr);
  gap: 0.55rem;
  align-items: baseline;
  padding: 0.62rem 0.2rem;
  color: var(--white);
  text-decoration: none;
  font-size: 0.94rem;
  line-height: 1.55;
  transition: color 180ms ease, transform 180ms ease;
}

.page-faq .hot-list a:hover,
.page-faq .hot-list a:focus-visible {
  color: var(--gold-soft);
  transform: translateX(3px);
}

.page-faq .hot-list .mono {
  font-size: 0.7rem;
  color: var(--gold);
}

.page-faq .hot-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.page-faq .hot-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  max-width: 100%;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .hot-figure figcaption {
  font-size: 0.68rem;
  color: var(--steel);
  letter-spacing: 0.08em;
}

/* ---------- 分类索引 + 问答 ---------- */
.page-faq .faq-directory {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  padding: clamp(1.75rem, 4.5vw, 3rem) 0 clamp(1.5rem, 3.5vw, 2.25rem);
  border-top: 1px solid var(--line);
}

.page-faq .index-card {
  background: var(--faq-card-deep);
  border: 1px solid var(--line);
  border-left: 3px solid var(--coral);
  padding: 1.05rem 1.1rem 1.2rem;
}

.page-faq .index-card h2 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.86rem;
  letter-spacing: 0.12em;
  color: var(--steel);
  margin: 0 0 0.75rem;
}

.page-faq .index-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.1rem;
}

.page-faq .index-card a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.44rem 0.38rem;
  color: rgba(247, 244, 238, 0.82);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background 160ms ease, color 160ms ease;
}

.page-faq .index-card a:hover,
.page-faq .index-card a:focus-visible {
  background: rgba(216, 179, 106, 0.13);
  color: var(--gold-soft);
}

.page-faq .index-card .mono {
  font-size: 0.68rem;
  color: var(--gold);
}

.page-faq .faq-body .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.85rem;
}

.page-faq .chip {
  font-family: var(--font-sans);
  font-size: 0.83rem;
  line-height: 1.2;
  padding: 0.44rem 0.85rem;
  border: 1px solid var(--line);
  background: transparent;
  color: rgba(247, 244, 238, 0.76);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
}

.page-faq .chip:hover {
  color: var(--white);
  border-color: var(--line-gold);
}

.page-faq .chip:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 2px;
}

.page-faq .chip[aria-pressed="true"] {
  background: var(--coral);
  border-color: var(--coral);
  color: #fff;
}

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

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

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

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: 2.9rem minmax(0, 1fr) auto auto;
  gap: 0.55rem;
  align-items: center;
  padding: 0.95rem 0.35rem 0.95rem 0.15rem;
  cursor: pointer;
  list-style: none;
}

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

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

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

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-faq .faq-q {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(0.95rem, 2.3vw, 1.02rem);
  line-height: 1.5;
  color: var(--white);
  transition: color 160ms ease;
}

.page-faq .faq-item summary:hover .faq-q,
.page-faq .faq-item[open] .faq-q {
  color: var(--gold-soft);
}

.page-faq .faq-topic {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  color: var(--steel);
  border: 1px solid var(--line);
  padding: 0.14rem 0.42rem;
  white-space: nowrap;
}

.page-faq .faq-sign {
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-gold);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1;
  transition: background 180ms ease, color 180ms ease;
}

.page-faq .faq-sign::before {
  content: "+";
}

.page-faq .faq-item[open] .faq-sign {
  background: var(--gold);
  color: var(--ink);
}

.page-faq .faq-item[open] .faq-sign::before {
  content: "−";
}

.page-faq .faq-a {
  padding: 0 1.5rem 1.15rem 3.55rem;
  color: rgba(247, 244, 238, 0.76);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-faq .faq-a p {
  margin: 0 0 0.7rem;
}

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

.page-faq .faq-a strong {
  color: var(--gold-soft);
  font-weight: 500;
}

.page-faq .faq-a ol,
.page-faq .faq-a ul {
  margin: 0 0 0.7rem;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.3rem;
}

/* ---------- 核验流程 ---------- */
.page-faq .faq-verify {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.6rem);
  padding: clamp(2rem, 5vw, 3.4rem) 0;
  border-top: 1px solid var(--line);
}

.page-faq .sec-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.32rem, 3.6vw, 1.95rem);
  line-height: 1.32;
  margin: 0.4rem 0 0.7rem;
  max-width: 26ch;
}

.page-faq .verify-lede {
  margin: 0;
  color: rgba(247, 244, 238, 0.76);
  font-size: 0.95rem;
  line-height: 1.85;
  max-width: 52ch;
}

.page-faq .verify-steps {
  list-style: none;
  margin: 1.15rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.page-faq .verify-steps li {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-top: 1px dashed rgba(124, 147, 163, 0.24);
}

.page-faq .verify-steps .mono {
  font-size: 0.7rem;
  color: var(--coral);
  padding-top: 0.18rem;
}

.page-faq .verify-steps h3 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.96rem;
  margin: 0 0 0.2rem;
  color: var(--white);
}

.page-faq .verify-steps p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(247, 244, 238, 0.7);
}

.page-faq .verify-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.page-faq .verify-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 20 / 13;
  object-fit: cover;
  border: 1px solid var(--line-gold);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-faq .verify-figure figcaption {
  font-size: 0.68rem;
  color: var(--steel);
  letter-spacing: 0.08em;
}

/* ---------- 变更查询 ---------- */
.page-faq .faq-changes {
  padding: clamp(2rem, 5vw, 3.4rem) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-changes .lede {
  margin: 0;
  color: rgba(247, 244, 238, 0.78);
  max-width: 60ch;
}

.page-faq .change-track {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0 0 0 1.55rem;
  position: relative;
  display: grid;
  gap: 1.3rem;
}

.page-faq .change-track::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(216, 179, 106, 0.08));
}

.page-faq .change-track li {
  position: relative;
}

.page-faq .change-track li::before {
  content: "";
  position: absolute;
  left: calc(-1.55rem - 1px);
  top: 0.36rem;
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border-radius: 50%;
  border: 2px solid var(--gold);
  background: var(--ink);
}

.page-faq .change-track .mono {
  display: block;
  font-size: 0.68rem;
  color: var(--steel);
  letter-spacing: 0.1em;
  margin-bottom: 0.2rem;
}

.page-faq .change-track h3 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 1rem;
  margin: 0 0 0.25rem;
  color: var(--white);
}

.page-faq .change-track p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: rgba(247, 244, 238, 0.72);
}

.page-faq .changes-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.7rem 0 0;
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(1.5rem, 4vw, 2.75rem);
  background: var(--paper);
  color: var(--brown);
  padding: clamp(1.4rem, 4vw, 2.6rem);
  clip-path: polygon(0 24px, 24px 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-contact .eyebrow {
  color: var(--coral);
}

.page-faq .faq-contact h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.28rem, 3.4vw, 1.75rem);
  line-height: 1.32;
  margin: 0.35rem 0 0.65rem;
  color: var(--brown);
}

.page-faq .faq-contact p {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(27, 23, 18, 0.78);
}

.page-faq .faq-contact__rows {
  display: grid;
  gap: 0.5rem;
  align-content: start;
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 4.4rem minmax(0, 1fr);
  gap: 0.65rem;
  align-items: baseline;
  padding-bottom: 0.45rem;
  border-bottom: 1px dashed rgba(27, 23, 18, 0.18);
}

.page-faq .faq-contact__key {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: rgba(27, 23, 18, 0.55);
}

.page-faq .faq-contact__val {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--brown);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__val a {
  color: var(--brown);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 3px;
}

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

.page-faq .faq-contact__note {
  margin: 1.4rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px solid rgba(27, 23, 18, 0.16);
  font-size: 0.84rem;
  line-height: 1.75;
  color: rgba(27, 23, 18, 0.66);
}

.page-faq .faq-contact__note a {
  color: var(--brown);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 719px) {
  .page-faq .faq-topic {
    display: none;
  }

  .page-faq .faq-item summary {
    grid-template-columns: 2.35rem minmax(0, 1fr) auto;
  }

  .page-faq .faq-a {
    padding-left: 0.35rem;
    padding-right: 0.35rem;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 3.6rem minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hot {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: stretch;
  }

  .page-faq .faq-verify {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-directory {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 2.6rem;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 1.25rem;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 2.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .hot-list a,
  .page-faq .chip,
  .page-faq .faq-q,
  .page-faq .faq-sign,
  .page-faq .index-card a {
    transition: none;
  }

  .page-faq .hot-list a:hover,
  .page-faq .hot-list a:focus-visible {
    transform: none;
  }
}