.page-faq {
  --faq-paper-line: rgba(20, 22, 31, .16);
  --faq-hair: rgba(154, 163, 192, .28);
}

.page-faq img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-faq .breadcrumb {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- 章节头部 ---------- */
.page-faq .faq-head {
  display: grid;
  gap: 10px 22px;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-faq .faq-head .section__num {
  display: inline-block;
  justify-self: start;
  margin: 0;
  padding: 3px 10px;
  background: var(--gold);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  line-height: 1.6;
}

.page-faq .faq-head .section__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -.015em;
  line-height: 1.2;
  font-size: clamp(1.6rem, 4.6vw, 2.5rem);
}

.page-faq .faq-head .section__lede {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .section--paper .section__title {
  color: var(--ink);
}

.page-faq .section--paper .section__lede {
  color: var(--ink);
  opacity: .78;
}

.page-faq .faq-ask .section__title,
.page-faq .faq-help .section__title {
  color: var(--paper);
}

.page-faq .faq-ask .section__lede,
.page-faq .faq-help .section__lede {
  color: var(--muted);
}

@media (min-width: 860px) {
  .page-faq .faq-head {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-head .section__num {
    grid-column: 1;
    grid-row: 1 / span 2;
    margin-top: 8px;
  }
  .page-faq .faq-head .section__title,
  .page-faq .faq-head .section__lede {
    grid-column: 2;
  }
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(30px, 5vw, 58px) clamp(38px, 6vw, 78px);
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(30px, 5vw, 58px);
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--teal);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.08;
  font-size: clamp(2.1rem, 7.2vw, 3.9rem);
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 0 0 16px;
  max-width: 36em;
  color: var(--paper);
  opacity: .84;
  line-height: 1.85;
}

.page-faq .faq-hero__note {
  margin: 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__entries {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .faq-entry {
  display: grid;
  gap: 6px;
  padding: 20px 22px;
  background: var(--night-card);
  border: 2px solid var(--line);
  border-left-width: 8px;
  border-left-color: var(--muted);
  color: var(--paper);
  text-decoration: none;
  box-shadow: var(--shadow-hard);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-entry--teal { border-left-color: var(--teal); }
.page-faq .faq-entry--gold { border-left-color: var(--gold); }

.page-faq .faq-entry:hover,
.page-faq .faq-entry:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard-lg);
  border-top-color: var(--teal-deep);
  border-right-color: var(--teal-deep);
  border-bottom-color: var(--teal-deep);
}

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

.page-faq .faq-entry__tag {
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--muted);
}

.page-faq .faq-entry__title {
  font-size: clamp(1.15rem, 3vw, 1.45rem);
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-faq .faq-entry__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 920px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr);
    align-items: start;
  }
}

/* ---------- 01 新用户指南 ---------- */
.page-faq .faq-guide__body {
  display: grid;
  gap: clamp(26px, 4vw, 50px);
}

@media (min-width: 900px) {
  .page-faq .faq-guide__body {
    grid-template-columns: minmax(0, 1fr) minmax(280px, .78fr);
    align-items: start;
  }
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 18px;
  padding-block: 20px;
  border-top: 2px solid var(--faq-paper-line);
}

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

.page-faq .faq-step__num {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: var(--ink-indigo);
  color: var(--gold);
  border: 2px solid var(--ink);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.page-faq .faq-step__title {
  margin: 0 0 8px;
  font-size: clamp(1.05rem, 2.6vw, 1.25rem);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-step__body p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  opacity: .8;
}

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

.page-faq .faq-guide__figure .figure__frame {
  border: 2px solid var(--ink-indigo);
  box-shadow: var(--shadow-hard);
  background: var(--paper-2);
}

.page-faq .faq-guide__figure .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink);
  opacity: .7;
}

/* ---------- 02 分类问答 ---------- */
.page-faq .faq-ask__figure {
  margin: 0 0 clamp(26px, 4vw, 42px);
}

.page-faq .faq-ask__figure .figure__frame {
  border: 2px solid var(--line);
}

.page-faq .faq-ask__figure .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-faq .faq-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(22px, 3.5vw, 34px);
}

.page-faq .faq-tablist .tab {
  min-height: 44px;
  padding: 10px 16px;
  border: 2px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .02em;
  cursor: pointer;
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-tablist .tab .mono {
  margin-right: 6px;
  font-size: 12px;
  letter-spacing: .12em;
}

.page-faq .faq-tablist .tab:hover {
  color: var(--paper);
  border-color: var(--teal-deep);
}

.page-faq .faq-tablist .tab[aria-selected="true"] {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--ink-indigo);
  font-weight: 700;
}

.page-faq .faq-tablist .tab:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.page-faq .faq-panel {
  max-width: 62rem;
}

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

.page-faq .faq-q {
  background: var(--night-card);
  border: 2px solid var(--line);
  margin: 0 0 12px;
  transition: border-color .2s var(--ease);
}

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

.page-faq .faq-q[open] {
  border-color: var(--teal);
}

.page-faq .faq-q > summary {
  position: relative;
  display: block;
  min-height: 44px;
  padding: 17px 54px 17px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
}

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

.page-faq .faq-q > summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 9px solid var(--muted);
  transform: translateY(-50%);
  transition: transform .2s var(--ease), border-top-color .2s var(--ease);
}

.page-faq .faq-q[open] > summary::after {
  border-top-color: var(--teal);
  transform: translateY(-50%) rotate(180deg);
}

.page-faq .faq-q > summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: -3px;
}

.page-faq .faq-q__a {
  margin: 0;
  max-width: 58ch;
  padding: 14px 20px 20px;
  border-top: 1px solid var(--line-soft);
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 03 速查表 ---------- */
.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 2px solid var(--ink-indigo);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
}

.page-faq .faq-table__caption {
  caption-side: top;
  padding: 14px 18px;
  text-align: left;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink);
  opacity: .7;
  border-bottom: 2px solid var(--ink-indigo);
}

.page-faq .faq-table thead th {
  padding: 14px 18px;
  text-align: left;
  background: var(--ink-indigo);
  color: var(--paper);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .22em;
  white-space: nowrap;
}

.page-faq .faq-table tbody th,
.page-faq .faq-table tbody td {
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--faq-paper-line);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table tbody th {
  font-weight: 700;
  white-space: nowrap;
}

.page-faq .faq-table tbody tr:hover {
  background: rgba(14, 21, 51, .05);
}

.page-faq .faq-table__level {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-indigo);
  white-space: nowrap;
}

.page-faq .faq-table__path {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-indigo);
  opacity: .88;
  white-space: nowrap;
}

.page-faq .faq-table__note {
  font-size: 14px;
  opacity: .76;
}

/* ---------- 04 联系 ---------- */
.page-faq .faq-help__grid {
  display: grid;
  gap: 20px;
}

@media (min-width: 760px) {
  .page-faq .faq-help__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-channel {
  padding: 24px;
  background: var(--night-card);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-channel__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--teal);
}

.page-faq .faq-channel__value {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 3.2vw, 1.35rem);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-channel__note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-channel .copy-status {
  min-height: 1.2em;
}

.page-faq .faq-help__meta {
  margin: clamp(22px, 3.5vw, 32px) 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-help__meta a {
  color: var(--teal);
  text-underline-offset: 3px;
}

.page-faq .faq-help__meta a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

/* ---------- 05 维护说明 ---------- */
.page-faq .faq-maintain__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: clamp(22px, 3.5vw, 34px);
}

.page-faq .faq-stat {
  padding: 20px 18px;
  border: 2px solid var(--ink-indigo);
}

.page-faq .faq-stat__num {
  display: block;
  font-size: clamp(2rem, 5.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--ink-indigo);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ink);
  opacity: .72;
}

.page-faq .faq-maintain__note {
  margin: 0 0 26px;
  padding-left: 18px;
  border-left: 6px solid var(--gold);
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 2px solid var(--ink-indigo);
  color: var(--ink-indigo);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: background-color .18s var(--ease), color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-links a:hover,
.page-faq .faq-links a:focus-visible {
  background: var(--ink-indigo);
  color: var(--paper);
  transform: translate(-2px, -2px);
}

.page-faq .faq-links a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-entry,
  .page-faq .faq-q,
  .page-faq .faq-q > summary::after,
  .page-faq .faq-tablist .tab,
  .page-faq .faq-links a {
    transition: none;
  }
  .page-faq .faq-entry:hover,
  .page-faq .faq-entry:focus-visible,
  .page-faq .faq-links a:hover,
  .page-faq .faq-links a:focus-visible {
    transform: none;
  }
}