.page-faq {
  --faq-measure: 40rem;
  color: var(--text);
}

.page-faq a:focus-visible,
.page-faq button:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(18px, 3vw, 34px) clamp(34px, 5vw, 72px);
}

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

.page-faq .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

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

.page-faq .crumbs a {
  color: var(--ink-500);
  text-decoration: none;
}

.page-faq .crumbs a:hover {
  color: var(--signal-deep);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 42px);
}

.page-faq .faq-hero h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
  max-width: 18em;
  color: var(--ink-900);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--ink-500);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--sand-deep);
  color: var(--ink-700);
  font-size: 0.85rem;
  text-decoration: none;
  transition: background 0.24s ease, color 0.24s ease, border-color 0.24s ease;
}

.page-faq .faq-jump a:hover {
  background: var(--signal-mist);
  border-color: var(--signal-mist);
  color: var(--ink-900);
}

.page-faq .faq-hero__card {
  background: var(--ink-900);
  color: var(--paper);
  border-radius: var(--r-lg);
  padding: 22px 24px 24px;
}

.page-faq .faq-hero__card-title {
  font-family: var(--label);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--signal-mist);
  margin: 0 0 16px;
}

.page-faq .faq-stats {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-stats div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: var(--hair);
}

.page-faq .faq-stats div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-stats dt {
  margin: 0;
  font-size: 0.85rem;
  color: rgba(251, 250, 247, 0.72);
}

.page-faq .faq-stats dd {
  margin: 0;
  font-size: 1rem;
  color: var(--paper);
}

.page-faq .faq-stats .num {
  font-family: var(--serif);
  font-size: 1.35rem;
  color: var(--signal);
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-body {
  padding-block: clamp(30px, 5vw, 64px);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(26px, 5vw, 60px);
}

.page-faq .faq-rail ol {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .faq-rail a {
  display: block;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--sand);
  border-left: 2px solid transparent;
  color: var(--ink-500);
  font-size: 0.82rem;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-faq .faq-rail a:hover {
  background: var(--signal-mist);
  color: var(--ink-900);
}

.page-faq .faq-rail a.is-active {
  background: var(--ink-900);
  color: var(--paper);
}

.page-faq .faq-col {
  max-width: var(--faq-measure);
  line-height: 1.8;
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-sec + .faq-sec {
  margin-top: clamp(34px, 5vw, 58px);
}

.page-faq .faq-sec__head {
  border-top: 2px solid var(--signal);
  padding-top: 16px;
}

.page-faq .faq-sec__num {
  font-family: var(--label);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--signal-deep);
  margin: 0 0 8px;
}

.page-faq .faq-sec h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(21px, 2.8vw, 30px);
  line-height: 1.36;
  letter-spacing: -0.005em;
  margin: 0;
  color: var(--ink-900);
}

.page-faq .faq-sec .lede {
  margin: 12px 0 0;
  max-width: 32em;
  font-size: 0.98rem;
  line-height: 1.82;
  color: var(--ink-500);
}

.page-faq .faq-sec__note {
  margin: 22px 0 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--ink-500);
}

.page-faq .faq-sec__note a {
  color: var(--ink-900);
  text-decoration: none;
  border-bottom: 1px solid var(--signal);
  padding-bottom: 1px;
}

.page-faq .faq-sec__note a:hover {
  color: var(--signal-deep);
}

/* ---------- 步骤 ---------- */
.page-faq .steps {
  counter-reset: step;
  list-style: none;
  margin: 24px 0 0;
  padding: 0 0 0 clamp(16px, 3vw, 24px);
  border-left: 2px solid var(--signal);
  display: grid;
  gap: 18px;
}

.page-faq .steps li {
  font-size: 0.94rem;
  color: var(--ink-500);
}

.page-faq .steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--label);
  font-weight: 700;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--signal-deep);
  margin-bottom: 4px;
}

.page-faq .steps strong {
  display: block;
  margin-bottom: 2px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink-900);
  line-height: 1.65;
}

/* ---------- 说明块 ---------- */
.page-faq .term-note {
  margin: 26px 0 0;
  background: var(--sand);
  border-radius: var(--r-md);
  padding: 18px 20px;
}

.page-faq .term-note__title {
  margin: 0;
  font-family: var(--label);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--ink-700);
}

.page-faq .term-note ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .term-note li {
  display: grid;
  grid-template-columns: 4.2rem minmax(0, 1fr);
  gap: 10px;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--ink-500);
}

.page-faq .term-note span {
  color: var(--ink-900);
  font-weight: 700;
}

/* ---------- 图片 ---------- */
.page-faq .fig {
  margin: 26px 0 0;
}

.page-faq .fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-md);
  background: var(--sand-deep);
  object-fit: cover;
}

.page-faq .fig figcaption {
  margin-top: 10px;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 提示块 ---------- */
.page-faq .callout {
  margin: 24px 0 0;
  background: var(--mint);
  border-radius: var(--r-md);
  padding: 16px 20px;
}

.page-faq .callout__tag {
  margin: 0 0 6px;
  font-family: var(--label);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--ink-700);
}

.page-faq .callout p:last-child {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--ink-900);
}

/* ---------- 对照表 ---------- */
.page-faq .table-wrap {
  margin: 24px 0 0;
}

.page-faq .dtable {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-faq .dtable th {
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--label);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-align: left;
  padding: 12px 14px;
}

.page-faq .dtable td {
  padding: 13px 14px;
  vertical-align: top;
  border-bottom: 1px solid var(--sand-deep);
  color: var(--ink-500);
}

.page-faq .dtable tbody tr:nth-child(odd) td {
  background: var(--paper);
}

.page-faq .dtable tbody tr:nth-child(even) td {
  background: var(--sand);
}

.page-faq .dtable td:first-child {
  color: var(--ink-900);
  font-weight: 600;
}

/* ---------- 价格误读 ---------- */
.page-faq .misread {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .misread li {
  background: var(--paper);
  border-left: 3px solid var(--signal-mist);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  padding: 16px 18px;
}

.page-faq .misread__q {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.65;
  color: var(--ink-900);
}

.page-faq .misread__a {
  margin: 8px 0 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--ink-500);
}

/* ---------- 折叠面板 ---------- */
.page-faq .folds {
  margin: 24px 0 0;
  border-top: 1px solid var(--sand-deep);
}

.page-faq .fold {
  border-bottom: 1px solid var(--sand-deep);
}

.page-faq .fold summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--ink-900);
  transition: color 0.2s ease;
}

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

.page-faq .fold summary::after {
  content: "+";
  flex: none;
  font-family: var(--label);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--signal);
  transition: transform 0.24s ease;
}

.page-faq .fold summary:hover {
  color: var(--signal-deep);
}

.page-faq .fold[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .fold__body {
  padding: 0 0 18px;
  font-size: 0.92rem;
  line-height: 1.82;
  color: var(--ink-500);
}

.page-faq .fold__meta {
  margin: 0 0 8px;
  font-family: var(--label);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink-700);
}

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

/* ---------- 咨询准备 ---------- */
.page-faq .prep-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .prep-list li {
  background: var(--sand);
  border-radius: var(--r-md);
  padding: 16px 18px;
}

.page-faq .prep-list__k {
  display: block;
  margin-bottom: 6px;
  font-family: var(--label);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--signal-deep);
}

.page-faq .prep-list p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--ink-700);
}

.page-faq .contact-card {
  margin: 22px 0 0;
  background: var(--ink-900);
  color: var(--paper);
  border-radius: var(--r-lg);
  padding: clamp(20px, 3vw, 30px);
}

.page-faq .contact-card__row {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: var(--hair);
}

.page-faq .contact-card__row:first-child {
  padding-top: 0;
}

.page-faq .contact-card__label {
  margin: 0;
  font-family: var(--label);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--signal-mist);
}

.page-faq .contact-card__value {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .contact-card .copy-btn {
  justify-self: start;
  margin-top: 4px;
  padding: 8px 16px;
  font-size: 0.82rem;
}

.page-faq .contact-card__note {
  margin: 16px 0 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: rgba(251, 250, 247, 0.78);
}

/* ---------- 回索引导航 ---------- */
.page-faq .faq-back {
  margin: 20px 0 0;
  font-size: 0.82rem;
}

.page-faq .faq-back a {
  color: var(--ink-500);
  text-decoration: none;
  border-bottom: 1px solid var(--sand-deep);
  padding-bottom: 2px;
}

.page-faq .faq-back a:hover {
  color: var(--signal-deep);
  border-color: var(--signal);
}

.page-faq .faq-next {
  margin-top: clamp(34px, 5vw, 56px);
  padding-top: 18px;
  border-top: 2px solid var(--ink-900);
  display: grid;
  gap: 10px;
}

.page-faq .faq-next a {
  display: block;
  padding: 14px 16px;
  border-radius: var(--r-sm);
  background: var(--sand);
  color: var(--ink-900);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.24s ease, color 0.24s ease;
}

.page-faq .faq-next a:hover {
  background: var(--signal-mist);
  color: var(--ink-900);
}

/* ---------- 窄屏表格转块 ---------- */
@media (max-width: 620px) {
  .page-faq .dtable thead {
    display: none;
  }

  .page-faq .dtable,
  .page-faq .dtable tbody,
  .page-faq .dtable tr,
  .page-faq .dtable td {
    display: block;
    width: 100%;
  }

  .page-faq .dtable tr {
    padding: 14px 0;
    border-bottom: 1px solid var(--sand-deep);
    background: transparent;
  }

  .page-faq .dtable td,
  .page-faq .dtable tbody tr:nth-child(odd) td,
  .page-faq .dtable tbody tr:nth-child(even) td {
    padding: 2px 0;
    border-bottom: 0;
    background: transparent;
  }

  .page-faq .dtable td:first-child {
    font-size: 0.95rem;
  }

  .page-faq .dtable td + td::before {
    content: "→ ";
    color: var(--signal-deep);
  }
}

/* ---------- 宽屏布局 ---------- */
@media (min-width: 640px) {
  .page-faq .prep-list {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-next {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .contact-card__row {
    grid-template-columns: 6rem minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
  }

  .page-faq .contact-card .copy-btn {
    margin-top: 0;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 17.5rem;
    align-items: end;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 11rem minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-rail ol {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-faq .faq-rail a {
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    border-left: 2px solid transparent;
    background: transparent;
    padding: 9px 12px;
    font-size: 0.86rem;
  }

  .page-faq .faq-rail a:hover {
    background: var(--sand);
    color: var(--ink-900);
  }

  .page-faq .faq-rail a.is-active {
    background: var(--sand);
    border-left-color: var(--signal);
    color: var(--ink-900);
    font-weight: 700;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .faq-rail a,
  .page-faq .faq-next a,
  .page-faq .fold summary,
  .page-faq .fold summary::after {
    transition: none;
  }
}
<<<END>>>