.page-faq {
  --faq-side-w: 264px;
  --faq-gap: clamp(28px, 5vw, 64px);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  padding-top: clamp(16px, 2.5vw, 26px);
  padding-bottom: clamp(10px, 1.6vw, 16px);
}

/* ---------- 页头 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--ink-gold) 0%, #2f2710 100%);
  color: var(--paper);
  padding: clamp(44px, 8vw, 92px) 0 clamp(112px, 15vw, 176px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image:
    linear-gradient(to right, rgba(201, 162, 39, 0.14) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(201, 162, 39, 0.14) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold-deep) 48%, rgba(201, 162, 39, 0) 100%);
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-hero .eyebrow {
  color: var(--gold);
  letter-spacing: 0.18em;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 14px 0 0;
}

.page-faq .faq-lede {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.85;
  color: rgba(251, 246, 236, 0.82);
}

.page-faq .faq-hero-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid rgba(201, 162, 39, 0.42);
}

.page-faq .faq-hero-stat {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 2px;
  border-bottom: 1px solid rgba(201, 162, 39, 0.22);
}

.page-faq .faq-hero-stat-num {
  flex: none;
  min-width: 62px;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 30px);
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero-stat-label {
  font-size: 0.9rem;
  line-height: 1.65;
  color: rgba(251, 246, 236, 0.78);
}

/* ---------- 页头配图 ---------- */
.page-faq .faq-hero-visual {
  position: relative;
  z-index: 2;
  margin-top: -58px;
}

.page-faq .faq-hero-visual .media-frame {
  border: 1px solid var(--line);
  background: var(--paper);
}

/* ---------- 分组索引 ---------- */
.page-faq .faq-index {
  padding-top: clamp(40px, 6vw, 76px);
}

.page-faq .faq-index-title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 26px);
  margin: 0 0 18px;
  color: var(--ink);
}

.page-faq .faq-ledger {
  display: grid;
  border-top: 2px solid var(--ink);
}

.page-faq .faq-ledger-link {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 4px 14px;
  align-items: baseline;
  padding: 16px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  transition: background 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-faq .faq-ledger-link:nth-child(even) {
  background: var(--zebra);
}

@media (min-width: 780px) {
  .page-faq .faq-ledger-link {
    grid-template-columns: 76px 236px 1fr;
    padding: 18px 22px;
  }
}

.page-faq .faq-ledger-link:hover,
.page-faq .faq-ledger-link:focus-visible {
  background: var(--sand);
  padding-left: 27px;
}

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

.page-faq .faq-ledger-link .ledger-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--brick);
}

.page-faq .faq-ledger-name {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.4;
}

.page-faq .faq-ledger-note {
  color: var(--graphite);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-top: clamp(46px, 6vw, 84px);
  padding-bottom: clamp(46px, 7vw, 92px);
}

.page-faq .faq-side-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
}

.page-faq .faq-side-nav a {
  display: block;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--graphite);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-side-nav a span {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--brick);
  margin-right: 7px;
}

.page-faq .faq-side-nav a:hover,
.page-faq .faq-side-nav a:focus-visible {
  color: var(--ink);
  border-color: var(--gold);
  background: var(--sand);
}

.page-faq .faq-side-nav a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 116px;
  margin-bottom: clamp(44px, 6vw, 78px);
}

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

.page-faq .faq-group-head {
  position: relative;
  padding-left: 20px;
  margin-bottom: 18px;
}

.page-faq .faq-group-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--brick);
}

.page-faq .faq-group-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--gold-deep);
}

.page-faq .faq-group-head h2 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(22px, 3.2vw, 30px);
  line-height: 1.3;
  margin: 6px 0 0;
  color: var(--ink);
}

.page-faq .faq-group-note {
  margin: 10px 0 0;
  max-width: 58ch;
  color: var(--graphite);
  font-size: 0.93rem;
  line-height: 1.75;
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item {
  position: relative;
  padding-left: clamp(22px, 2vw, 28px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 116px;
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gold);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.32s var(--ease);
}

.page-faq .faq-item[open]::before {
  transform: scaleY(1);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(16px, 2.1vw, 18px);
  line-height: 1.55;
  color: var(--ink);
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-q:hover {
  color: var(--gold-deep);
}

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

.page-faq .faq-q-text {
  flex: 1 1 auto;
}

.page-faq .faq-q-mark {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 5px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-faq .faq-q-mark::before,
.page-faq .faq-q-mark::after {
  content: "";
  position: absolute;
  background: var(--gold-deep);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.page-faq .faq-q-mark::before {
  left: 3px;
  right: 3px;
  top: 50%;
  height: 1.5px;
  margin-top: -0.75px;
}

.page-faq .faq-q-mark::after {
  top: 3px;
  bottom: 3px;
  left: 50%;
  width: 1.5px;
  margin-left: -0.75px;
}

.page-faq .faq-item[open] .faq-q-mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  max-width: 64ch;
  padding: 0 0 22px;
  color: var(--graphite);
  font-size: 0.96rem;
  line-height: 1.82;
}

.page-faq .faq-a p + p {
  margin-top: 12px;
}

.page-faq .faq-act {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.page-faq .faq-act .btn {
  padding: 9px 16px;
  font-size: 0.88rem;
}

/* ---------- 反馈章节的图文错位 ---------- */
.page-faq .faq-media-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 0 0 24px;
  padding: 18px;
  background: var(--sand);
  border: 1px solid var(--line);
}

.page-faq .faq-media-split .media-frame {
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-faq .faq-media-kicker {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  color: var(--brick);
  margin-bottom: 12px;
}

.page-faq .faq-media-list {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
}

.page-faq .faq-media-list li {
  position: relative;
  padding: 9px 0 9px 20px;
  border-bottom: 1px solid var(--line);
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-media-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 8px;
  background: var(--gold);
}

.page-faq .faq-media-split-copy > p:last-child {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--graphite);
}

@media (min-width: 720px) {
  .page-faq .faq-media-split {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 28px;
    align-items: center;
    padding: 22px 24px;
  }
}

/* ---------- 人工通道 ---------- */
.page-faq .faq-help {
  position: relative;
  background: var(--sand);
  border-top: 1px solid var(--line);
  padding: clamp(46px, 7vw, 88px) 0;
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(201, 162, 39, 0) 78%);
}

.page-faq .faq-help-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-faq .faq-help .eyebrow {
  color: var(--brick);
  letter-spacing: 0.18em;
}

.page-faq .faq-help h2 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.3;
  margin: 10px 0 0;
  color: var(--ink);
}

.page-faq .faq-help-lede {
  margin: 16px 0 0;
  max-width: 52ch;
  color: var(--graphite);
  font-size: 0.98rem;
  line-height: 1.85;
}

.page-faq .faq-help-panel {
  padding: 6px 20px;
}

.page-faq .faq-help-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-help-row:last-child {
  border-bottom: none;
}

.page-faq .faq-help-label {
  flex: none;
  min-width: 74px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--gold-deep);
}

.page-faq .faq-help-value {
  flex: 1 1 auto;
  min-width: 0;
  word-break: break-all;
  font-size: 0.96rem;
  color: var(--ink);
}

.page-faq .faq-help-row .copy-btn {
  flex: none;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-faq .faq-hero-visual {
    margin-top: -96px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-side-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 128px;
  }

  .page-faq .faq-side-nav {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 4px;
  }

  .page-faq .faq-side-nav a {
    border: none;
    border-left: 2px solid var(--line);
    background: transparent;
    padding: 11px 10px 11px 16px;
  }

  .page-faq .faq-side-nav a:hover,
  .page-faq .faq-side-nav a:focus-visible {
    border-left-color: var(--gold);
    background: var(--paper);
  }

  .page-faq .faq-help-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item::before,
  .page-faq .faq-q-mark::before,
  .page-faq .faq-q-mark::after,
  .page-faq .faq-ledger-link,
  .page-faq .faq-side-nav a {
    transition: none;
  }
}
</main>