.page-faq {
  --faq-meta: #6B6459;
  --faq-soft: rgba(154, 163, 188, 0.28);
  --faq-answer-pad: clamp(16px, 3vw, 24px);
  background: var(--ink);
  color: var(--snow);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb-row {
  padding-top: clamp(18px, 4vw, 36px);
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--line);
}

.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

.page-faq .breadcrumb li[aria-current="page"] {
  color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
  padding-block: clamp(26px, 5vw, 52px) clamp(34px, 6vw, 68px);
}

.page-faq .faq-hero__copy .eyebrow {
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.06;
  font-size: clamp(38px, 7.4vw, 72px);
  margin: 0 0 20px;
  max-width: 14em;
  color: var(--snow);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 26px;
  padding-top: 18px;
  border-top: var(--border) solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-hero__facts b {
  color: var(--gold-soft);
  font-weight: 600;
}

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

.page-faq .media {
  overflow: hidden;
  background-color: var(--panel);
  border: var(--border) solid var(--line);
  box-shadow: var(--hard-strong);
}

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  padding-bottom: clamp(44px, 8vw, 88px);
}

/* 目录（移动端在上，横向排列） */
.page-faq .faq-toc {
  border-top: var(--border) solid var(--gold);
  padding-top: 14px;
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-toc ol {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  color: var(--mist);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-toc a .mono {
  font-size: 11px;
  color: var(--line);
  letter-spacing: 0.12em;
  transition: color 180ms var(--ease);
}

.page-faq .faq-toc a:hover,
.page-faq .faq-toc a:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

.page-faq .faq-toc a:hover .mono,
.page-faq .faq-toc a:focus-visible .mono {
  color: var(--gold-soft);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  max-width: 36em;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 6vw, 60px);
  padding-top: clamp(26px, 4vw, 40px);
  border-top: var(--border) solid var(--gold);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  margin-bottom: clamp(14px, 2.6vw, 22px);
}

.page-faq .faq-group__num {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(22px, 3.4vw, 29px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--snow);
}

.page-faq .faq-group__note {
  grid-column: 1 / -1;
  margin: 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-item {
  border-top: 1px solid var(--faq-soft);
}

.page-faq .qa-item:last-child {
  border-bottom: 1px solid var(--faq-soft);
}

.page-faq .qa-trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  width: 100%;
  min-height: 44px;
  padding: 15px 2px;
  background: none;
  border: 0;
  color: var(--snow);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.65;
  text-align: left;
  cursor: pointer;
  transition: color 180ms var(--ease);
}

.page-faq .qa-trigger:hover,
.page-faq .qa-trigger:focus-visible {
  color: var(--gold-soft);
}

.page-faq .qa-trigger:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 3px;
}

.page-faq .qa-num {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gold);
  padding-top: 5px;
}

.page-faq .qa-arrow {
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(45deg);
  transition: transform 260ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .qa-trigger:hover .qa-arrow,
.page-faq .qa-trigger:focus-visible .qa-arrow {
  border-color: var(--gold-soft);
}

.page-faq .qa-trigger[aria-expanded="true"] .qa-arrow {
  transform: rotate(225deg);
}

.page-faq .qa-trigger[aria-expanded="true"] {
  color: var(--gold-soft);
}

/* 展开面板 */
.page-faq .qa-panel {
  background: var(--snow);
  color: var(--char);
  max-width: 34em;
  padding: var(--faq-answer-pad);
  margin: 0 2px 18px;
  border-left: 4px solid var(--gold);
  box-shadow: 4px 4px 0 0 var(--line);
  font-size: 15px;
  line-height: 1.85;
  animation: faq-open 260ms var(--ease);
}

.page-faq .qa-panel[data-collapsed] {
  display: none;
}

.page-faq .qa-panel p {
  margin: 0 0 10px;
}

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

.page-faq .qa-panel ol,
.page-faq .qa-panel ul {
  margin: 0 0 10px;
  padding-left: 1.25em;
}

.page-faq .qa-panel li {
  margin-bottom: 4px;
}

.page-faq .qa-panel li::marker {
  color: var(--ember);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.page-faq .qa-panel .qa-doc {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px solid rgba(31, 29, 26, 0.16);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--faq-meta);
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 结尾帮助区块 ---------- */
.page-faq .faq-tail {
  background: var(--paper);
  color: var(--char);
  border-top: var(--border) solid var(--line);
  box-shadow: 0 -5px 0 0 var(--line);
}

.page-faq .faq-tail__inner {
  width: 100%;
  max-width: var(--w-max);
  margin: 0 auto;
  padding: clamp(36px, 6vw, 72px) var(--gutter);
}

.page-faq .faq-tail__eyebrow {
  margin: 0 0 12px;
  color: #8A6F12;
}

.page-faq .faq-tail__title {
  margin: 0 0 16px;
  max-width: 20em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--char);
}

.page-faq .faq-tail__prose {
  margin: 0 0 clamp(24px, 4vw, 36px);
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: #4A443B;
}

.page-faq .faq-tail__figure {
  margin: 0 0 clamp(24px, 4vw, 36px);
  max-width: 640px;
}

.page-faq .faq-tail .media {
  border-color: var(--char);
  box-shadow: 6px 6px 0 0 var(--char);
}

.page-faq .faq-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.page-faq .faq-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 26px;
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid rgba(31, 29, 26, 0.18);
}

.page-faq .faq-tail__links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: #4A443B;
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-tail__links a:hover,
.page-faq .faq-tail__links a:focus-visible {
  color: var(--char);
  border-bottom-color: var(--ember);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 860px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.85fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .faq-hero__figure {
    margin-top: 8px;
  }
}

/* ---------- 桌面：右侧固定锚点目录 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 208px;
    gap: clamp(36px, 5vw, 80px);
    align-items: start;
  }

  .page-faq .faq-toc {
    order: 2;
    position: sticky;
    top: 104px;
    align-self: start;
    border-top: var(--border) solid var(--gold);
    border-left: 1px solid var(--faq-soft);
    padding: 14px 0 0 18px;
  }

  .page-faq .faq-toc ol {
    flex-direction: column;
    gap: 0;
  }

  .page-faq .faq-toc a {
    width: 100%;
    padding: 8px 0;
  }

  .page-faq .faq-groups {
    order: 1;
  }

  .page-faq .faq-tail__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-areas:
      "eyebrow figure"
      "title   figure"
      "prose   figure"
      "actions figure"
      "links   figure";
    column-gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-faq .faq-tail__eyebrow { grid-area: eyebrow; }
  .page-faq .faq-tail__title { grid-area: title; }
  .page-faq .faq-tail__prose { grid-area: prose; }
  .page-faq .faq-tail__figure {
    grid-area: figure;
    margin: 0;
    max-width: none;
  }
  .page-faq .faq-tail__actions { grid-area: actions; }
  .page-faq .faq-tail__links { grid-area: links; margin-top: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-panel {
    animation: none;
  }
  .page-faq .qa-arrow,
  .page-faq .qa-trigger,
  .page-faq .faq-toc a,
  .page-faq .breadcrumb a {
    transition: none;
  }
}