.page-faq {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

.page-faq .breadcrumbs {
  padding-block: 1.1rem 0.4rem;
}

.page-faq .kb-hero {
  display: grid;
  gap: 2rem;
  padding-block: 1.5rem 3rem;
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .kb-hero__text {
  border-top: 3px solid var(--green);
  padding-top: 1.25rem;
}

.page-faq .kb-hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 6.6vw, 2.85rem);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--green);
  margin: 0.85rem 0 1rem;
}

.page-faq .kb-hero__lede {
  max-width: 36em;
  font-size: 1rem;
  color: var(--ink);
  margin: 0;
}

.page-faq .kb-hero__stats {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 0.85rem;
}

.page-faq .kb-stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--gold);
}

.page-faq .kb-stat__num {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--copper);
}

.page-faq .kb-stat__label {
  font-size: 0.8rem;
  color: var(--gray);
  line-height: 1.5;
}

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

.page-faq .kb-hero__frame {
  position: relative;
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  padding: 0.6rem;
}

.page-faq .kb-hero__frame::before,
.page-faq .kb-hero__frame::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  pointer-events: none;
}

.page-faq .kb-hero__frame::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--gold);
  border-left: 2px solid var(--gold);
}

.page-faq .kb-hero__frame::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid var(--gold);
  border-right: 2px solid var(--gold);
}

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

.page-faq .kb-hero__caption {
  margin-top: 0.65rem;
  font-family: var(--font-hand);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--copper);
}

.page-faq .kb-sec {
  padding-block: 2.75rem;
}

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

.page-faq .kb-sec__head {
  margin-bottom: 1.75rem;
}

.page-faq .kb-sec__title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 4.4vw, 1.9rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--green);
  margin: 0.6rem 0 0.7rem;
}

.page-faq .kb-sec__intro {
  max-width: 52ch;
  margin: 0;
  font-size: 0.95rem;
  color: var(--gray);
}

.page-faq .kb-sec__intro a,
.page-faq .kb-library a,
.page-faq .kb-path__foot a {
  color: var(--red);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
}

.page-faq .kb-sec__intro a:hover,
.page-faq .kb-library a:hover,
.page-faq .kb-path__foot a:hover {
  border-bottom-color: var(--red);
}

/* 四类目录 */
.page-faq .kb-cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line-strong);
}

.page-faq .kb-cat {
  position: relative;
  background: var(--paper);
  padding: 1.35rem 1.15rem 1.5rem;
}

.page-faq .kb-cat::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--gold) 0 10px, transparent 10px 20px);
  opacity: 0.55;
}

.page-faq .kb-cat__code {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
  color: var(--gold);
  margin: 0;
}

.page-faq .kb-cat__name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0.6rem 0 0.2rem;
}

.page-faq .kb-cat__count {
  font-size: 0.75rem;
  color: var(--gray);
  margin: 0;
}

.page-faq .kb-cat__text {
  font-size: 0.88rem;
  color: var(--ink);
  margin: 0.7rem 0 0;
  line-height: 1.65;
}

/* 筛选与速查 */
.page-faq .kb-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  padding: 0.9rem 0 1.1rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .tag-filter__label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--copper);
  margin: 0;
}

.page-faq .tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.page-faq .tag-filter__btn {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  padding: 0.42rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.page-faq .tag-filter__btn:hover {
  border-color: var(--copper);
  color: var(--copper);
}

.page-faq .tag-filter__btn[aria-pressed="true"] {
  background: var(--red);
  border-color: var(--red);
  color: var(--cream);
}

.page-faq .tag-filter__btn:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.page-faq .filter-status {
  font-size: 0.72rem;
  color: var(--gray);
  margin: 0 0 0 auto;
}

.page-faq .kb-qs {
  margin-top: 0.25rem;
}

.page-faq .kb-q {
  display: grid;
  gap: 0.3rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .kb-q__num {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--copper);
  margin: 0;
}

.page-faq .kb-q__title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  margin: 0;
}

.page-faq .kb-q__text {
  font-size: 0.9rem;
  color: #3a3833;
  margin: 0;
  line-height: 1.72;
}

/* 换机重登专题 */
.page-faq .kb-reconnect {
  display: grid;
  gap: 2rem;
  align-items: start;
}

.page-faq .kb-reconnect__lede {
  font-size: 0.95rem;
  color: var(--gray);
  margin: 0 0 1.5rem;
  max-width: 46ch;
}

.page-faq .kb-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line-strong);
}

.page-faq .kb-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
  align-items: start;
  padding: 1.1rem 1rem;
  background: var(--paper);
}

.page-faq .kb-step__num {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--cream);
  background: var(--green);
}

.page-faq .kb-step__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--green);
  margin: 0 0 0.3rem;
  line-height: 1.45;
}

.page-faq .kb-step__text {
  font-size: 0.87rem;
  color: #3a3833;
  margin: 0;
  line-height: 1.68;
}

.page-faq .kb-reconnect__figure {
  margin: 0;
}

.page-faq .kb-reconnect__frame {
  position: relative;
  border: 1px solid var(--line-strong);
  padding: 0.55rem;
  background: var(--paper-2);
}

.page-faq .kb-reconnect__frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gold);
  opacity: 0.7;
}

/* 问答手风琴 */
.page-faq .kb-acc-group {
  border-top: 1px solid var(--line-strong);
}

.page-faq .kb-acc {
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.page-faq .kb-acc__summary {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 1.1rem 2.2rem 1.1rem 0;
  position: relative;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

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

.page-faq .kb-acc__summary::after {
  content: "+";
  position: absolute;
  right: 0.15rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--copper);
}

.page-faq .kb-acc[open] .kb-acc__summary::after {
  content: "−";
  color: var(--red);
}

.page-faq .kb-acc[open] .kb-acc__summary {
  color: var(--green);
}

.page-faq .kb-acc__summary:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.page-faq .kb-acc__num {
  flex: none;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-faq .kb-acc__body {
  padding: 0 2.2rem 1.35rem 0;
}

.page-faq .kb-acc__body p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: #3a3833;
  max-width: 62ch;
}

/* 客服三步 */
.page-faq .kb-path {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  counter-reset: none;
}

.page-faq .kb-path__item {
  position: relative;
  padding: 1.15rem 1.1rem 1.3rem;
  background: var(--paper-2);
  border-left: 3px solid var(--gold);
}

.page-faq .kb-path__num {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--copper);
  margin-bottom: 0.45rem;
}

.page-faq .kb-path__title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--green);
  margin: 0 0 0.35rem;
}

.page-faq .kb-path__text {
  font-size: 0.87rem;
  color: #3a3833;
  margin: 0;
  line-height: 1.68;
}

.page-faq .kb-path__foot {
  margin: 1.25rem 0 0;
  font-size: 0.84rem;
  color: var(--gray);
}

/* 资料库与术语 */
.page-faq .kb-library {
  display: grid;
  gap: 2rem;
  align-items: start;
}

.page-faq .kb-library__lede {
  font-size: 0.95rem;
  color: #3a3833;
  margin: 0 0 1.2rem;
  max-width: 52ch;
}

.page-faq .kb-library__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.page-faq .kb-library__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: #3a3833;
}

.page-faq .kb-library__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--gold);
}

.page-faq .kb-library__list strong {
  color: var(--ink);
  font-weight: 700;
}

.page-faq .kb-library__more {
  margin: 1.1rem 0 0;
  font-size: 0.86rem;
  color: var(--gray);
}

.page-faq .kb-terms {
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--green);
  padding: 1.15rem 1.1rem 1.3rem;
  background: var(--cream);
}

.page-faq .kb-terms__title {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--copper);
  margin: 0 0 0.9rem;
}

.page-faq .kb-terms__list {
  margin: 0;
}

.page-faq .kb-terms__list dt {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--green);
  margin-top: 0.85rem;
}

.page-faq .kb-terms__list dt:first-child {
  margin-top: 0;
}

.page-faq .kb-terms__list dd {
  margin: 0.2rem 0 0;
  font-size: 0.84rem;
  line-height: 1.65;
  color: var(--gray);
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--gold-line);
}

.page-faq .kb-terms__list dt:last-of-type + dd {
  border-bottom: 0;
  padding-bottom: 0;
}

/* 提交前检查 */
.page-faq .kb-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line-strong);
}

.page-faq .kb-check__item {
  background: var(--paper);
  padding: 1.1rem 1.05rem 1.25rem;
}

.page-faq .kb-check__mark {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cream);
  background: var(--copper);
  padding: 0.12rem 0.5rem;
  margin-bottom: 0.6rem;
}

.page-faq .kb-check__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 0.3rem;
}

.page-faq .kb-check__text {
  font-size: 0.86rem;
  color: var(--gray);
  margin: 0;
  line-height: 1.65;
}

/* 收尾 */
.page-faq .kb-final {
  padding-block: 0 3.5rem;
}

.page-faq .kb-final__box {
  background: var(--green);
  color: var(--footer-text);
  padding: 1.75rem 1.25rem 2rem;
  display: grid;
  gap: 1.5rem;
  border-top: 4px solid var(--gold);
}

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

.page-faq .kb-final__title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 4.2vw, 1.7rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--cream);
  margin: 0.6rem 0 0.75rem;
}

.page-faq .kb-final__lede {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  max-width: 48ch;
  color: var(--footer-text);
}

.page-faq .kb-final__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.page-faq .kb-final__actions .btn {
  flex: 1 1 auto;
  text-align: center;
  min-width: 9rem;
}

@media (min-width: 640px) {
  .page-faq .kb-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 900px) {
  .page-faq .kb-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 3rem;
    padding-block: 2rem 4rem;
    align-items: start;
  }

  .page-faq .kb-hero__figure {
    margin-top: 0.5rem;
  }

  .page-faq .kb-sec {
    padding-block: 3.75rem;
  }

  .page-faq .kb-cats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .kb-q {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    gap: 0.3rem 1.25rem;
    align-items: baseline;
  }

  .page-faq .kb-q__num {
    grid-row: 1 / span 2;
  }

  .page-faq .kb-reconnect {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 3rem;
  }

  .page-faq .kb-library {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 3.5rem;
  }

  .page-faq .kb-final__box {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 2.5rem;
    padding: 2.5rem 2.5rem 2.75rem;
  }

  .page-faq .kb-final__actions {
    flex-direction: column;
    align-items: stretch;
    min-width: 12rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tag-filter__btn {
    transition: none;
  }
}