.page-faq {
  --faq-line: 1px solid var(--ink);
  --faq-hair: 1px solid var(--grid);
  --faq-pad: clamp(20px, 3.4vw, 32px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
  padding: clamp(22px, 4vw, 40px) 0 clamp(30px, 5vw, 56px);
  border-bottom: var(--faq-line);
}

.page-faq .faq-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(34px, 8vw, 66px);
  line-height: 0.98;
  letter-spacing: 0.01em;
  margin: 0 0 18px;
  color: var(--ink);
  max-width: 18ch;
}

.page-faq .faq-lede {
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--ink);
  margin: 0 0 20px;
  max-width: 60ch;
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.page-faq .faq-hero-media {
  margin: 0;
  position: relative;
  border: var(--faq-line);
  background: var(--stack);
  box-shadow: 10px 10px 0 var(--sand);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  padding-top: clamp(34px, 5vw, 60px);
}

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-index {
  border-top: 3px solid var(--ink);
  padding-top: 14px;
}

.page-faq .faq-index-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index-list a {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 10px 8px;
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.45;
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  border-left-color: var(--orange);
  background: var(--stack);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .faq-index-list a:hover .faq-index-num,
.page-faq .faq-index-list a:focus-visible .faq-index-num {
  color: var(--blue);
}

/* ---------- 问答流 ---------- */
.page-faq .faq-stream {
  min-width: 0;
}

.page-faq .faq-group {
  padding-top: clamp(30px, 4.4vw, 48px);
  border-top: var(--faq-hair);
  scroll-margin-top: 24px;
}

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

.page-faq .faq-group-head {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.page-faq .faq-group-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0;
}

.page-faq .faq-group h2 {
  font-family: var(--font-head);
  font-size: clamp(25px, 3.6vw, 40px);
  line-height: 1.05;
  margin: 0;
  color: var(--ink);
}

.page-faq .faq-group-lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 折叠面板 ---------- */
.page-faq .faq-item {
  border: var(--faq-line);
  border-left-width: 3px;
  border-left-color: transparent;
  background: var(--paper);
  margin-bottom: 10px;
  transition: border-left-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  box-shadow: 5px 5px 0 var(--stack);
  transform: translate(-2px, -2px);
}

.page-faq .faq-item[open] {
  border-left-color: var(--sand);
  box-shadow: 7px 7px 0 var(--stack);
}

.page-faq .faq-item > summary {
  cursor: pointer;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 16px;
  gap: 14px;
  align-items: start;
  padding: 16px var(--faq-pad);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

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

.page-faq .faq-item > summary::after {
  content: "";
  width: 11px;
  height: 11px;
  margin-top: 5px;
  justify-self: end;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  transform: rotate(-135deg);
  border-color: var(--orange);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -3px;
}

.page-faq .faq-answer {
  padding: 0 var(--faq-pad) 20px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 74ch;
}

.page-faq .faq-answer p {
  margin: 0 0 12px;
}

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

.page-faq .faq-answer a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--sand);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  border-bottom-color: var(--orange);
}

/* ---------- 指标表 ---------- */
.page-faq .faq-table-scroll {
  overflow-x: auto;
  border: var(--faq-hair);
  margin: 14px 0 4px;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-table-caption {
  text-align: left;
  padding: 10px 14px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: var(--faq-hair);
  vertical-align: top;
}

.page-faq .faq-table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--muted);
  border-bottom: var(--faq-line);
  background: var(--stack);
}

.page-faq .faq-table tbody tr {
  transition: background-color var(--dur) var(--ease);
}

.page-faq .faq-table tbody tr:hover {
  background: var(--stack);
}

.page-faq .faq-table td:first-child {
  font-weight: 700;
  white-space: nowrap;
  color: var(--blue);
}

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

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 4px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--faq-line);
  background: var(--stack);
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- 联系方式列表 ---------- */
.page-faq .faq-contact-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  border-top: var(--faq-hair);
}

.page-faq .faq-contact-list li {
  display: grid;
  gap: 4px;
  padding: 11px 0;
  border-bottom: var(--faq-hair);
  font-size: 15px;
}

.page-faq .faq-contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-contact-list a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--sand);
}

/* ---------- 底部出口带 ---------- */
.page-faq .faq-outro {
  position: relative;
  overflow: hidden;
  margin-top: clamp(48px, 8vw, 96px);
  padding: clamp(38px, 6vw, 76px) 0;
  background: var(--ink);
  color: var(--paper);
}

.page-faq .faq-outro::before,
.page-faq .faq-outro::after {
  display: none;
}

.page-faq .faq-outro-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-exit {
  border: 1px solid rgba(247, 245, 240, 0.34);
  background: rgba(17, 19, 24, 0.62);
  padding: clamp(22px, 3.4vw, 34px);
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-exit h2 {
  font-family: var(--font-head);
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.08;
  margin: 0;
  color: var(--paper);
}

.page-faq .faq-exit p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(247, 245, 240, 0.82);
  max-width: 46ch;
}

.page-faq .faq-exit .btn {
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-faq .faq-outro-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-outro::before {
    display: block;
    content: "";
    position: absolute;
    top: -22%;
    left: -12%;
    width: 68%;
    height: 148%;
    background: var(--blue);
    transform: rotate(9deg);
    transform-origin: top left;
    opacity: 0.92;
  }

  .page-faq .faq-outro::after {
    display: block;
    content: "";
    position: absolute;
    bottom: -34%;
    right: -10%;
    width: 44%;
    height: 130%;
    background: var(--orange);
    transform: rotate(9deg);
    opacity: 0.18;
  }

  .page-faq .faq-exit {
    background: rgba(17, 19, 24, 0.7);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 26px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-body {
    grid-template-columns: 262px minmax(0, 1fr);
    gap: 64px;
  }
}
<<<END>>>