.page-faq {
  --faq-rail-w: 288px;
  --faq-sticky-top: 104px;
  background: var(--ink-800);
  color: var(--paper);
  font-family: var(--font-sans);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-mast {
  position: relative;
  overflow: hidden;
  padding-top: 24px;
}

.page-faq .faq-mast::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(217, 210, 195, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(217, 210, 195, 0.05) 1px, transparent 1px);
  background-size: 68px 68px;
  pointer-events: none;
}

.page-faq .faq-mast .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-mast .breadcrumbs {
  margin-bottom: 36px;
}

.page-faq .faq-mast__grid {
  display: grid;
  gap: 40px;
  padding-bottom: 56px;
}

.page-faq .faq-mast__copy h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 30px;
  line-height: 1.3;
  letter-spacing: 0.02em;
  margin: 14px 0 20px;
  color: var(--paper);
}

.page-faq .faq-mast__copy .lede {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  align-self: end;
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px;
  background: var(--ink-700);
}

.page-faq .faq-stat__num {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--gold-300);
}

.page-faq .faq-stat__label {
  font-size: 14px;
  color: var(--mist);
}

/* ---------- 索引区 ---------- */
.page-faq .faq-index {
  padding-top: 64px;
  padding-bottom: 72px;
}

.page-faq .faq-index .eyebrow,
.page-faq .faq-steps .eyebrow {
  color: var(--gold-700);
}

.page-faq .faq-index__head {
  display: grid;
  gap: 28px;
  align-items: center;
  margin-bottom: 44px;
}

.page-faq .faq-index__intro h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.35;
  letter-spacing: 0.02em;
  margin: 12px 0 12px;
  color: var(--ink-800);
}

.page-faq .faq-index__lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-600);
  max-width: 32em;
}

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

.page-faq .faq-index__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--stone);
  border-radius: var(--radius-m);
  background: var(--ink-700);
}

.page-faq .faq-index__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-600);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-faq .faq-index__grid {
  display: grid;
  gap: 40px;
  align-items: start;
}

/* 左侧索引 */
.page-faq .faq-rail {
  border-left: 2px solid var(--gold-600);
  padding-left: 18px;
}

.page-faq .faq-rail__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-700);
  margin: 0 0 14px;
}

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

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 12px;
  padding: 13px 15px;
  border: 1px solid var(--stone);
  border-radius: var(--radius-s);
  background: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  color: var(--ink-800);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: var(--gold-600);
  background: #ffffff;
}

.page-faq .faq-rail__link:focus-visible {
  outline: 2px solid var(--gold-300);
  outline-offset: 2px;
}

.page-faq .faq-rail__name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.02em;
}

.page-faq .faq-rail__count {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-700);
  align-self: center;
}

.page-faq .faq-rail__meta {
  grid-column: 1 / -1;
  font-size: 12px;
  color: var(--ink-600);
  letter-spacing: 0.02em;
}

.page-faq .faq-rail__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-600);
}

/* 问答分组 */
.page-faq .faq-group {
  scroll-margin-top: 112px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 52px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink-800);
}

.page-faq .faq-group__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: 0.02em;
  margin: 0;
  color: var(--ink-800);
}

.page-faq .faq-group__head .tag {
  color: var(--ink-600);
  border-color: var(--stone);
}

.page-faq .faq-group__note {
  margin: 12px 0 4px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-600);
}

.page-faq .faq-group__note a,
.page-faq .faq-item__a a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-group__note a:hover,
.page-faq .faq-item__a a:hover {
  color: var(--cinnabar-deep);
}

/* 抽屉条目 */
.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--stone);
  padding-left: 0;
  transition: padding-left var(--dur) var(--ease);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gold-600);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  padding-left: 16px;
}

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

.page-faq .faq-item__q {
  cursor: pointer;
  list-style: none;
  position: relative;
  padding: 16px 34px 16px 0;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink-800);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--gold-700);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
}

.page-faq .faq-item__q:hover {
  color: var(--ink-600);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--gold-300);
  outline-offset: 3px;
}

.page-faq .faq-item__a {
  margin: 0 34px 18px 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-700);
}

/* ---------- 高频问答 ---------- */
.page-faq .faq-hot {
  padding-top: 64px;
  padding-bottom: 68px;
}

.page-faq .faq-hot__head h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.35;
  letter-spacing: 0.02em;
  margin: 12px 0 12px;
  color: var(--paper);
}

.page-faq .faq-hot__lede {
  margin: 0 0 36px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 34em;
}

.page-faq .faq-hot__list {
  margin: 0;
  padding: 0;
  columns: 1;
  column-gap: 56px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hot__item {
  break-inside: avoid;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hot__q {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.55;
  letter-spacing: 0.02em;
  color: var(--paper);
  margin: 0 0 8px;
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.page-faq .faq-hot__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold-600);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 2px 6px;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-hot__item:hover .faq-hot__no {
  background: var(--ink-600);
  border-color: var(--gold-600);
  color: var(--gold-300);
}

.page-faq .faq-hot__a {
  margin: 0 0 0 0;
  padding-left: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 两步操作 ---------- */
.page-faq .faq-steps {
  padding-top: 64px;
  padding-bottom: 72px;
}

.page-faq .faq-steps__grid {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-faq .faq-steps__head h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.35;
  letter-spacing: 0.02em;
  margin: 12px 0 12px;
  color: var(--ink-800);
}

.page-faq .faq-steps__lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-600);
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--stone);
}

.page-faq .faq-step {
  display: grid;
  gap: 10px;
  padding: 24px 0;
  border-bottom: 1px solid var(--stone);
}

.page-faq .faq-step__no {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 40px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold-600);
}

.page-faq .faq-step__title {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--ink-800);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-faq .faq-step__text a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-warn {
  margin: 36px 0 0;
  padding: 16px 18px 16px 20px;
  border-left: 3px solid var(--gold-600);
  background: linear-gradient(90deg, rgba(176, 138, 62, 0.14), rgba(176, 138, 62, 0));
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-800);
}

/* ---------- 报错排查 ---------- */
.page-faq .faq-path {
  padding-top: 64px;
  padding-bottom: 72px;
}

.page-faq .faq-path__head h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.35;
  letter-spacing: 0.02em;
  margin: 12px 0 12px;
  color: var(--paper);
}

.page-faq .faq-path__lede {
  margin: 0 0 40px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 34em;
}

.page-faq .faq-path__grid {
  display: grid;
  gap: 44px;
  align-items: start;
}

.page-faq .faq-node {
  position: relative;
  margin-left: 18px;
  padding: 0 0 34px 42px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-node:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-faq .faq-node__no {
  position: absolute;
  left: -18px;
  top: -2px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--gold-600);
  background: var(--ink-800);
  color: var(--gold-300);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-faq .faq-node__title {
  margin: 4px 0 14px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-faq .faq-node__steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-node__steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-node__steps li::before {
  content: counter(faqstep) ".";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--gold-600);
}

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

.page-faq .faq-path__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--ink-700);
}

.page-faq .faq-path__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-help {
  padding-top: 64px;
  padding-bottom: 72px;
}

.page-faq .faq-help__head h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.35;
  letter-spacing: 0.02em;
  margin: 12px 0 12px;
  color: var(--paper);
}

.page-faq .faq-help__lede {
  margin: 0 0 36px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 32em;
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-help__col {
  padding: 22px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: rgba(22, 50, 79, 0.5);
}

.page-faq .faq-help__col--alt {
  border-color: var(--line);
  background: rgba(22, 50, 79, 0.78);
}

.page-faq .faq-help__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-300);
}

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

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 1px;
  background: var(--gold-600);
}

.page-faq .faq-contact {
  margin-top: 36px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(10, 13, 18, 0.5);
}

.page-faq .faq-contact__tip {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
  max-width: 40em;
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line-soft);
}

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

.page-faq .faq-contact__k {
  flex: none;
  min-width: 80px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
  align-self: center;
}

.page-faq .faq-contact__v {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--gold-300);
  word-break: break-word;
}

.page-faq .faq-contact__link {
  display: inline-block;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-mast__copy h1 {
    font-size: 38px;
  }

  .page-faq .faq-index__intro h2,
  .page-faq .faq-hot__head h2,
  .page-faq .faq-steps__head h2,
  .page-faq .faq-path__head h2,
  .page-faq .faq-help__head h2 {
    font-size: 28px;
  }

  .page-faq .faq-hot__list {
    columns: 2;
  }

  .page-faq .faq-step {
    grid-template-columns: 100px minmax(0, 1fr);
    align-items: start;
    gap: 4px 24px;
  }

  .page-faq .faq-step__no {
    font-size: 46px;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-faq .faq-contact {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 20px 32px;
  }

  .page-faq .faq-contact__tip {
    grid-column: 1 / -1;
  }

  .page-faq .faq-contact__list {
    margin-bottom: 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-mast__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
    padding-bottom: 64px;
  }

  .page-faq .faq-mast__copy h1 {
    font-size: 46px;
  }

  .page-faq .faq-index__head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    margin-bottom: 56px;
  }

  .page-faq .faq-index__grid {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 64px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: var(--faq-sticky-top);
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
  }

  .page-faq .faq-path__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    gap: 64px;
  }

  .page-faq .faq-path__figure {
    position: sticky;
    top: var(--faq-sticky-top);
  }

  .page-faq .faq-contact {
    padding: 26px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item::before,
  .page-faq .faq-item__q,
  .page-faq .faq-rail__link,
  .page-faq .faq-hot__no {
    transition: none;
  }
}
<<<END>>>