.page-faq {
  --faq-rail: 236px;
  --faq-hair: rgba(107, 101, 92, 0.42);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

.page-faq a:hover,
.page-faq a:focus-visible {
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  border-bottom: var(--line-strong);
  padding-block: clamp(22px, 4vw, 40px) clamp(28px, 4.4vw, 52px);
  background:
    repeating-linear-gradient(90deg, var(--faq-hair) 0 1px, transparent 1px 34px) bottom left / 100% 10px no-repeat,
    var(--paper);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-hero-text h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7vw, 68px);
  line-height: 0.99;
  letter-spacing: -0.025em;
  margin: 10px 0 0;
}

.page-faq .faq-lede {
  font-size: 16px;
  line-height: 1.75;
  max-width: 40em;
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 4px solid var(--orange);
}

.page-faq .faq-hero-text .note-hand {
  margin: 14px 0 0;
}

.page-faq .faq-fig-hero {
  aspect-ratio: 10 / 7;
}

/* ---------- 搜索与短语跳转 ---------- */
.page-faq .faq-search {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 12px 14px;
  border: var(--line);
  border-left: 6px solid var(--orange);
  background: var(--paper-2);
}

.page-faq .faq-search label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
}

.page-faq .faq-search input {
  flex: 1 1 220px;
  min-width: 0;
  font: inherit;
  font-size: 15px;
  padding: 9px 12px;
  border: var(--line);
  background: var(--paper);
  color: var(--ink);
}

.page-faq .faq-search input::placeholder {
  color: var(--ink-soft);
}

.page-faq .faq-search input:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-faq .faq-search-hint {
  flex: 1 1 100%;
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.page-faq .faq-chips {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 6px 10px;
  border: var(--line);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  transition: background 200ms var(--ease), color 200ms var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  background: var(--ink);
  color: var(--paper);
  outline: 2px solid var(--orange);
  outline-offset: 1px;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  padding-block: clamp(30px, 4.5vw, 60px) clamp(44px, 6vw, 88px);
}

/* 目录 */
.page-faq .faq-toc {
  border: var(--line-strong);
  background: var(--paper);
  box-shadow: var(--shadow-paper);
  padding: 14px 16px 16px;
}

.page-faq .faq-toc-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: var(--line);
}

.page-faq .faq-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-faq .faq-toc-list a {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 8px;
  align-items: baseline;
  padding: 8px 4px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px dashed var(--faq-hair);
  transition: background 180ms var(--ease);
}

.page-faq .faq-toc-list a:hover,
.page-faq .faq-toc-list a:focus-visible {
  background: var(--paper-2);
  color: var(--orange-deep);
}

.page-faq .faq-toc-list .num {
  font-size: 12px;
  color: var(--orange-deep);
}

.page-faq .faq-toc-foot {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(34px, 5vw, 62px);
  scroll-margin-top: calc(var(--header-h) + 22px);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 20px;
  border-bottom: var(--line-strong);
}

.page-faq .faq-group-num {
  flex: none;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  background: var(--note);
  color: var(--ink);
  transform: rotate(-2.4deg);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 3vw, 29px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* ---------- 问答卡 ---------- */
.page-faq .qa {
  border: var(--line-strong);
  background: var(--paper);
  box-shadow: 4px 4px 0 var(--paper-2);
  margin-bottom: 16px;
  transition: box-shadow 220ms var(--ease);
}

.page-faq .qa[open] {
  box-shadow: 5px 5px 0 var(--paper-2), 6px 6px 0 var(--ink);
}

.page-faq .qa > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 14px 15px;
  cursor: pointer;
  list-style: none;
  background: var(--paper);
}

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

.page-faq .qa > summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-faq .qa-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  padding: 5px 7px;
  background: var(--orange);
  color: #ffffff;
  letter-spacing: 0.06em;
}

.page-faq .qa-q-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink);
}

/* 展开图标：时间刻度样式 */
.page-faq .qa-tick {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: var(--line);
  background: var(--paper-2);
}

.page-faq .qa-tick::before,
.page-faq .qa-tick::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: transform 240ms var(--ease);
}

.page-faq .qa-tick::before {
  left: 4px;
  right: 4px;
  top: 50%;
  height: 1.5px;
  transform: translateY(-50%);
}

.page-faq .qa-tick::after {
  top: 4px;
  bottom: 4px;
  left: 50%;
  width: 1.5px;
  transform: translateX(-50%) scaleY(1);
}

.page-faq .qa[open] .qa-tick::after {
  transform: translateX(-50%) scaleY(0);
}

.page-faq .qa-body {
  padding: 0 15px 16px;
}

.page-faq .qa-body p {
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 1.05em;
  max-width: 40em;
}

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

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--orange-deep);
  white-space: nowrap;
}

.page-faq .qa-cite {
  padding: 9px 12px;
  background: var(--paper-2);
  border-left: 4px solid var(--green);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-faq .qa-body .note-hand {
  margin: 0 0 1.05em;
}

.page-faq .qa-body .table-print {
  margin: 4px 0 16px;
  width: 100%;
}

.page-faq .qa-body .table-print caption {
  text-align: left;
  font-size: 13px;
  color: var(--ink-soft);
  padding-bottom: 6px;
}

.page-faq .faq-fig-claim {
  aspect-ratio: 3 / 2;
  margin: 0 0 22px;
}

/* ---------- 收尾区块 ---------- */
.page-faq .faq-group--end .faq-next {
  margin-top: 8px;
  padding: 20px 18px;
  background: var(--indigo);
  color: var(--paper);
  border: var(--line-strong);
  box-shadow: 6px 6px 0 var(--ink);
}

.page-faq .faq-next-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 2.4vw, 21px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-next-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-next-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .faq-next-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--note);
}

.page-faq .faq-next-list a {
  color: var(--note);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-next-list a:hover,
.page-faq .faq-next-list a:focus-visible {
  color: #ffffff;
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ---------- 图片基础约束 ---------- */
.page-faq .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.88);
}

/* ---------- 中屏 ---------- */
@media (min-width: 700px) {
  .page-faq .qa:nth-of-type(odd) {
    margin-right: 34px;
  }

  .page-faq .qa:nth-of-type(even) {
    margin-left: 34px;
  }

  .page-faq .faq-hero-text h1 {
    max-width: 15em;
  }
}

/* ---------- 宽屏：左栏目录固定 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: end;
    gap: 40px;
  }

  .page-faq .faq-fig-hero {
    aspect-ratio: 4 / 3;
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .page-faq .qa-body {
    padding: 0 22px 20px;
  }

  .page-faq .qa > summary {
    padding: 16px 20px;
  }
}

/* ---------- 降级动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-tick::before,
  .page-faq .qa-tick::after,
  .page-faq .faq-chip,
  .page-faq .qa {
    transition: none;
  }
}