.page-faq {
  padding-bottom: 3rem;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--old);
}
.page-faq .crumbs li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--grid-line);
}
.page-faq .crumbs a {
  color: var(--old);
  text-decoration: none;
}
.page-faq .crumbs a:hover {
  color: var(--cyan);
}
.page-faq .crumbs [aria-current="page"] {
  color: var(--cyan-mist);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: 1.3rem;
  padding: 1.8rem 1.15rem 1.5rem;
  border: 1px solid var(--grid-line);
  background: linear-gradient(160deg, var(--cyan-06), transparent 62%);
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 24px;
  height: 24px;
  border-top: 2px solid var(--coral);
  border-right: 2px solid var(--coral);
}
.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2rem, 6.2vw, 3.9rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 0.55rem 0 1rem;
  max-width: 21ch;
}
.page-faq .faq-hero .lead {
  max-width: 62ch;
  margin: 0 0 1.5rem;
  font-size: 0.98rem;
  line-height: 1.85;
  color: rgba(242, 246, 247, 0.76);
}
.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin: 0;
  padding-top: 1.15rem;
  border-top: 1px dashed var(--grid-line);
}
.page-faq .faq-hero__stats dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--old);
  margin-bottom: 0.35rem;
}
.page-faq .faq-hero__stats dd {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--cyan);
}
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 2.4rem 2rem 1.9rem;
  }
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

/* ---------- 分类索引条 ---------- */
.page-faq .faq-index {
  margin-top: 1.3rem;
}
.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--grid-line);
}
.page-faq .faq-index__list li {
  flex: 1 1 50%;
  min-width: 0;
}
.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 0.3rem 0.5rem;
  padding: 0.9rem 0.7rem 0.95rem;
  text-decoration: none;
  color: var(--white);
  background: var(--indigo);
  height: 100%;
  transition: background-color 0.18s ease;
}
.page-faq .faq-index__list li + li a {
  border-left: 1px solid var(--grid-line);
}
.page-faq .faq-index__list a:hover {
  background: var(--cyan-08);
}
.page-faq .faq-index__num {
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: var(--coral);
}
.page-faq .faq-index__label {
  grid-column: 2;
  grid-row: 1;
  font-size: 0.92rem;
  font-weight: 600;
}
.page-faq .faq-index__count {
  grid-column: 1 / -1;
  grid-row: 2;
  margin-top: 0.25rem;
  padding-top: 0.4rem;
  border-top: 1px solid var(--grid-line);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--old);
}
@media (min-width: 760px) {
  .page-faq .faq-index__list li {
    flex: 1 1 0;
  }
  .page-faq .faq-index__list a {
    padding: 1.05rem 0.95rem 1.1rem;
  }
}

/* ---------- 索引图 ---------- */
.page-faq .faq-map {
  margin: 1.3rem 0 0;
  border: 1px solid var(--grid-line);
  background: var(--graphite);
}
.page-faq .faq-map img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-map .media-caption {
  padding: 0.7rem 0.9rem;
  border-top: 1px solid var(--grid-line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--old);
}

/* ---------- 分区 ---------- */
.page-faq .faq-section {
  margin-top: 2.6rem;
  padding-top: 1.9rem;
  border-top: 1px solid var(--grid-line);
  scroll-margin-top: 6.5rem;
}
.page-faq .block-head {
  display: grid;
  gap: 0.7rem;
}
.page-faq .block-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.6vw, 2.5rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white);
}
.page-faq .block-head h2::before {
  content: attr(data-idx);
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--coral);
}
.page-faq .block-head p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(242, 246, 247, 0.72);
}
.page-faq .block-head a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-18);
}
.page-faq .block-head a:hover {
  border-bottom-color: var(--cyan);
}
@media (min-width: 820px) {
  .page-faq .block-head {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 2.2rem;
    align-items: end;
  }
}

/* ---------- 问题卡流 ---------- */
.page-faq .qa-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin-top: 1.6rem;
  align-items: start;
}
@media (min-width: 860px) {
  .page-faq .qa-flow {
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
  }
  .page-faq .qa {
    grid-column: span 3;
  }
  .page-faq .qa--wide {
    grid-column: span 4;
  }
  .page-faq .qa--full,
  .page-faq .faq-plate {
    grid-column: span 6;
  }
}

.page-faq .qa {
  background: var(--graphite);
  border: 1px solid var(--grid-line);
  transition: border-color 0.18s ease, transform 0.18s ease;
}
.page-faq .qa:hover {
  border-color: var(--cyan-18);
  transform: translateY(-2px);
}
.page-faq .qa[open] {
  border-color: var(--cyan-18);
}
.page-faq .qa > summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 0.75rem;
  padding: 1rem 1.05rem;
  cursor: pointer;
  list-style: none;
}
.page-faq .qa > summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}
.page-faq .qa__num {
  padding-top: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
  transition: color 0.18s ease;
}
.page-faq .qa[open] .qa__num {
  color: var(--coral);
}
.page-faq .qa__q {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
}
.page-faq .qa__mark {
  position: relative;
  width: 13px;
  height: 13px;
  margin-top: 0.34rem;
}
.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--old);
  transition: background-color 0.18s ease, opacity 0.18s ease;
}
.page-faq .qa__mark::before {
  left: 0;
  top: 6px;
  width: 13px;
  height: 1px;
}
.page-faq .qa__mark::after {
  left: 6px;
  top: 0;
  width: 1px;
  height: 13px;
}
.page-faq .qa > summary:hover .qa__mark::before,
.page-faq .qa > summary:hover .qa__mark::after {
  background: var(--cyan);
}
.page-faq .qa[open] .qa__mark::after {
  opacity: 0;
}
.page-faq .qa[open] .qa__mark::before {
  background: var(--cyan);
}

.page-faq .qa__body {
  padding: 0 1.05rem 1.1rem;
  border-top: 1px solid var(--grid-line);
}
.page-faq .qa__concl {
  margin: 1rem 0;
  padding-left: 0.8rem;
  border-left: 2px solid var(--cyan);
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--cyan-mist);
}
.page-faq .qa__steps {
  list-style: none;
  counter-reset: fq;
  margin: 0 0 1rem;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.81rem;
  line-height: 1.75;
}
.page-faq .qa__steps li {
  counter-increment: fq;
  display: grid;
  grid-template-columns: 1.8rem 1fr;
  gap: 0.4rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--grid-line);
  color: rgba(242, 246, 247, 0.84);
}
.page-faq .qa__steps li:last-child {
  border-bottom: none;
  padding-bottom: 0.2rem;
}
.page-faq .qa__steps li::before {
  content: counter(fq, decimal-leading-zero);
  padding-top: 0.1rem;
  font-size: 0.72rem;
  color: var(--old);
}
.page-faq .qa__tip {
  margin: 0;
  padding: 0.65rem 0.8rem;
  background: var(--amber-10);
  border-left: 2px solid var(--amber-30);
  font-size: 0.79rem;
  line-height: 1.75;
  color: var(--amber);
}
.page-faq .qa__tip a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid var(--amber-30);
}
.page-faq .qa__tip a:hover {
  border-bottom-color: var(--amber);
}

/* ---------- 版本对照小格 ---------- */
.page-faq .qa__pair {
  display: grid;
  gap: 0.6rem;
  margin: 0 0 1rem;
}
@media (min-width: 560px) {
  .page-faq .qa__pair {
    grid-template-columns: 1fr 1fr;
  }
}
.page-faq .qa__pair > div {
  padding: 0.7rem 0.8rem 0.75rem;
  border: 1px solid var(--grid-line);
  background: rgba(11, 31, 51, 0.55);
}
.page-faq .qa__pair p {
  margin: 0.4rem 0 0;
  font-size: 0.81rem;
  line-height: 1.72;
  color: rgba(242, 246, 247, 0.76);
}
.page-faq .pair-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.page-faq .pair-v32 {
  border-left: 2px solid var(--cyan);
}
.page-faq .pair-v3 {
  border-left: 2px solid var(--old);
}
.page-faq .pair-v32 .pair-tag {
  color: var(--cyan);
}
.page-faq .pair-v3 .pair-tag {
  color: var(--old);
}

/* ---------- 平板示意图 ---------- */
.page-faq .faq-plate {
  margin: 0;
  border: 1px solid var(--grid-line);
  background: var(--graphite);
}
.page-faq .faq-plate img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-plate .media-caption {
  padding: 0.7rem 0.9rem;
  border-top: 1px solid var(--grid-line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--old);
}

/* ---------- 未解决时的联系面板 ---------- */
.page-faq .help-panel {
  display: grid;
  gap: 1.05rem;
  margin-top: 1.6rem;
  padding: 1.25rem 1.1rem 1.35rem;
  border: 1px solid var(--grid-line);
  background: linear-gradient(150deg, var(--cyan-06), transparent 58%), var(--graphite);
}
.page-faq .help-panel__lead {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(242, 246, 247, 0.8);
}
.page-faq .help-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.2rem;
}
.page-faq .help-list li {
  display: grid;
  grid-template-columns: 6.2rem 1fr;
  gap: 0.7rem;
  align-items: baseline;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--grid-line);
  font-size: 0.86rem;
  line-height: 1.7;
}
.page-faq .help-list__k {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.04em;
  color: var(--cyan);
}
.page-faq .help-list__v {
  color: rgba(242, 246, 247, 0.76);
}
.page-faq .help-contact {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.9;
  color: var(--cyan-mist);
  word-break: break-word;
}
.page-faq .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}
@media (min-width: 920px) {
  .page-faq .help-panel {
    grid-template-columns: 1fr 1fr;
    gap: 1.1rem 2.2rem;
    padding: 1.7rem 1.6rem 1.8rem;
  }
  .page-faq .help-panel__lead {
    grid-column: 1 / -1;
    max-width: 68ch;
  }
  .page-faq .help-contact,
  .page-faq .help-actions {
    grid-column: 2;
  }
}

/* ---------- 相关栏目 ---------- */
.page-faq .faq-related {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin-top: 2.4rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--grid-line);
  font-size: 0.85rem;
}
.page-faq .faq-related a {
  color: var(--old);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.page-faq .faq-related a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan-18);
}