.page-faq {
  --faq-step-num: clamp(2.75rem, 7vw, 6.5rem);
  background: var(--paper);
  color: var(--char);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--mist);
  padding-block: clamp(1.5rem, 3vw, 2.5rem) clamp(2.5rem, 6vw, 4.5rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -18%;
  bottom: -30%;
  width: 62%;
  height: 78%;
  background: linear-gradient(135deg, rgba(169, 71, 46, 0.6), rgba(31, 111, 120, 0.35) 55%, transparent 78%);
  transform: skewX(-12deg);
  pointer-events: none;
}

.page-faq .faq-hero > .container {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  margin-bottom: clamp(1rem, 2.5vw, 1.75rem);
  color: var(--mist);
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
}

.page-faq .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--clay);
}

.page-faq .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 2px solid var(--tu);
  padding-bottom: 1px;
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-faq .faq-hero .eyebrow {
  color: var(--neon);
  margin: 0 0 0.75rem;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-faq .faq-hero__title {
  margin: 0;
  color: var(--mist);
  font-size: var(--fs-2xl);
  line-height: 1.08;
  letter-spacing: -0.01em;
  transform: skewX(-3deg);
  transform-origin: left center;
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: clamp(1rem, 3vw, 1.6rem) 0 0;
  max-width: 62ch;
  color: var(--paper);
  font-size: var(--fs-base);
  line-height: 1.75;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.75rem);
  margin-top: clamp(1.75rem, 4vw, 3rem);
}

/* 三步编号卡 */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(0.9rem, 2vw, 1.25rem);
  align-content: start;
}

.page-faq .faq-step {
  border: var(--border) solid var(--ink-deep);
  background: var(--paper);
  color: var(--char);
  box-shadow: 6px 6px 0 var(--tu);
}

.page-faq .faq-step__head {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.25rem);
  padding: clamp(0.85rem, 2vw, 1.15rem) clamp(1rem, 2.5vw, 1.5rem);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: var(--faq-step-num);
  font-weight: 700;
  line-height: 0.8;
  color: var(--tu);
  letter-spacing: -0.04em;
  flex: 0 0 auto;
}

.page-faq .faq-step__title {
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--char);
}

.page-faq .faq-step__sign {
  margin-left: auto;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  background: var(--yellow);
  border: 2px solid var(--ink);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-step[open] .faq-step__sign {
  transform: rotate(45deg);
  background: var(--neon);
}

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

.page-faq .faq-step__body {
  padding: 0 clamp(1rem, 2.5vw, 1.5rem) clamp(1rem, 2.5vw, 1.35rem);
  border-top: 2px dashed var(--clay);
  margin-top: 0.25rem;
}

.page-faq .faq-step__body p {
  margin: 0.85rem 0 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--char);
}

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

.page-faq .faq-hero__media .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-hero__media .media-frame__caption {
  color: var(--mist);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding-block: clamp(2.25rem, 5vw, 4rem);
}

.page-faq .faq-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  padding-bottom: clamp(1.25rem, 3vw, 1.75rem);
  border-bottom: var(--border) solid var(--ink);
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-toolbar__label {
  margin: 0;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--lake);
}

.page-faq .faq-toolbar__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq .faq-chip {
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: 700;
  padding: 0.5rem 0.95rem;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--char);
  box-shadow: 3px 3px 0 var(--ink);
  cursor: pointer;
  transition: background 0.16s var(--ease), color 0.16s var(--ease), transform 0.16s var(--ease);
}

.page-faq .faq-chip:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--tu);
}

.page-faq .faq-chip[aria-pressed="true"] {
  background: var(--ink);
  color: var(--neon);
  box-shadow: 3px 3px 0 var(--tu);
}

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

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-index__title {
  margin: 0 0 0.75rem;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--tu);
}

.page-faq .faq-index__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq .faq-index__link {
  display: block;
  padding: 0.45rem 0.8rem;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  background: var(--paper);
  border: 2px solid var(--clay);
  border-left-width: 6px;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--ink);
  color: var(--neon);
  border-color: var(--ink);
  outline: none;
}

.page-faq .faq-stream {
  display: grid;
  gap: clamp(2rem, 5vw, 3.25rem);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 1.5rem;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: var(--fs-xl);
  line-height: 1.2;
  color: var(--ink);
  border-left: 10px solid var(--tu);
  padding-left: 0.75rem;
}

.page-faq .faq-group__desc {
  margin: 0.75rem 0 1.25rem;
  max-width: 60ch;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--char);
}

.page-faq .faq-group__desc--tail {
  margin-top: 1.5rem;
  padding: 0.85rem 1rem;
  background: rgba(31, 111, 120, 0.12);
  border-left: 5px solid var(--lake);
}

.page-faq .faq-inline-link {
  color: var(--lake);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--tu);
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--tu);
  border-bottom-color: var(--lake);
}

/* 折叠问答 */
.page-faq .faq-item {
  border-bottom: 2px solid var(--clay);
  background: var(--paper);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 0.25rem;
  font-size: var(--fs-base);
  font-weight: 700;
  line-height: 1.55;
  color: var(--char);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__sign {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  margin-top: 0.1rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  border: 2px solid var(--ink);
  background: var(--tint);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__sign {
  transform: rotate(45deg);
  background: var(--neon);
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--tu);
}

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

.page-faq .faq-item__a {
  padding: 0 0.25rem 1.15rem 2.45rem;
}

.page-faq .faq-item__a p {
  margin: 0 0 0.65rem;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--char);
}

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

/* 联系前准备 */
.page-faq .faq-prep {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-prep__item {
  padding: clamp(1rem, 2.5vw, 1.35rem);
  border: var(--border) solid var(--ink);
  background: var(--mist);
  box-shadow: 5px 5px 0 var(--lake);
}

.page-faq .faq-prep__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
  color: var(--tu);
  margin-bottom: 0.5rem;
}

.page-faq .faq-prep__title {
  margin: 0 0 0.4rem;
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-prep__item p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--char);
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact {
  background: var(--ink);
  color: var(--mist);
  padding-block: clamp(2.25rem, 5vw, 4rem);
  border-top: 10px solid var(--tu);
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}

.page-faq .faq-contact__eyebrow {
  margin: 0 0 0.75rem;
  color: var(--neon);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
}

.page-faq .faq-contact__title {
  margin: 0;
  font-size: var(--fs-xl);
  line-height: 1.2;
  color: var(--mist);
}

.page-faq .faq-contact__lead {
  margin: 0.9rem 0 1.5rem;
  max-width: 54ch;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--paper);
}

.page-faq .faq-contact__list {
  margin: 0;
  border-top: 2px solid var(--lake);
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.2rem;
  padding: 0.7rem 0;
  border-bottom: 2px solid rgba(255, 249, 238, 0.16);
}

.page-faq .faq-contact__row dt {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--yellow);
}

.page-faq .faq-contact__row dd {
  margin: 0;
  font-size: var(--fs-base);
  font-weight: 700;
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .faq-contact__row dd:not(:empty) {
  font-family: var(--font-mono);
}

.page-faq .faq-contact__row:last-child dd {
  font-family: var(--font-sans);
  font-weight: 500;
}

.page-faq .faq-contact__note {
  margin: 1.25rem 0 0;
  font-size: var(--fs-xs);
  line-height: 1.8;
  color: var(--tint);
}

.page-faq .faq-contact__note .faq-inline-link {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-faq .faq-contact__note .faq-inline-link:hover,
.page-faq .faq-contact__note .faq-inline-link:focus-visible {
  color: var(--yellow);
  border-bottom-color: var(--yellow);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

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

.page-faq .faq-contact__media .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-contact__media .media-frame__caption {
  color: var(--mist);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-prep {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-contact__row {
    grid-template-columns: minmax(0, 8rem) minmax(0, 1fr);
    gap: 1rem;
    align-items: baseline;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(0, 12rem) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-faq .faq-index__nav {
    flex-direction: column;
    flex-wrap: nowrap;
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .faq-index__link {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-step__sign,
  .page-faq .faq-item__sign,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .faq-chip:hover {
    transform: none;
  }

  .page-faq .faq-hero__title {
    transform: none;
  }
}