.page-faq {
  background: var(--ink-900);
  color: var(--body-text);
  padding-bottom: var(--pad-y);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: clamp(18px, 3vw, 34px);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  border-bottom: 1px solid var(--line);
  padding: clamp(26px, 4vw, 48px) 0 clamp(30px, 4.6vw, 58px);
}

.page-faq .faq-hero__title {
  margin: clamp(12px, 1.8vw, 20px) 0 clamp(16px, 2.2vw, 26px);
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.78;
  color: var(--body-text);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-hero__meta .num {
  color: var(--cyan);
}

.page-faq .faq-dot {
  width: 4px;
  height: 4px;
  background: var(--line);
  display: inline-block;
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  padding-top: clamp(26px, 4vw, 56px);
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: clamp(40px, 6vw, 96px);
    align-items: start;
  }
}

/* ---------- 侧边索引 ---------- */
.page-faq .faq-index {
  border-top: 1px solid var(--line);
  padding-top: 14px;
  min-width: 0;
}

@media (min-width: 1000px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-offset) + 20px);
    border-top: 0;
    padding-top: 0;
    border-left: 1px solid var(--line);
    padding-left: 18px;
  }
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  color: var(--cyan);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

@media (min-width: 1000px) {
  .page-faq .faq-index__list {
    display: block;
    gap: 0;
  }
  .page-faq .faq-index__item + .faq-index__item {
    margin-top: 11px;
  }
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-faq .faq-index__link .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--line);
  transition: color 160ms ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-index__link:hover .num,
.page-faq .faq-index__link:focus-visible .num {
  color: var(--cyan);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-body {
  border-top: 1px solid var(--line);
  min-width: 0;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-offset) + 24px);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  cursor: pointer;
  list-style: none;
  transition: transform 180ms ease;
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-q::after {
  content: "+";
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--muted);
  transition: color 160ms ease;
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-faq .faq-q__text {
  grid-column: 1;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--white);
  transition: color 160ms ease;
}

.page-faq .faq-q__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-q:hover .faq-q__text {
  color: var(--cyan);
}

.page-faq .faq-item[open] .faq-q {
  transform: translateX(6px);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "−";
  color: var(--cyan);
}

.page-faq .faq-item:target .faq-q__text {
  color: var(--cyan);
}

/* ---------- 展开内容 ---------- */
.page-faq .faq-a {
  padding: 0 0 clamp(22px, 3vw, 36px) 0;
}

.page-faq .faq-item[open] .faq-a {
  animation: faq-soft-in 220ms ease both;
}

@keyframes faq-soft-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-a p {
  max-width: 68ch;
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--body-text);
}

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

.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 160ms ease;
}

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

.page-faq .faq-lead {
  margin-bottom: 20px;
  color: var(--white);
}

/* ---------- 三步操作 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 clamp(20px, 2.6vw, 28px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-step {
  background: var(--ink-800);
  padding: clamp(16px, 2vw, 22px);
  border-top: 2px solid transparent;
  transition: background 160ms ease, border-color 160ms ease;
}

.page-faq .faq-step:hover {
  background: var(--ink-700);
  border-top-color: var(--cyan);
}

.page-faq .faq-step__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 32px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-faq .faq-step__title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .faq-step__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body-text);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

.page-faq .faq-figure figcaption {
  border-top: 1px solid var(--line);
  padding: 12px 16px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 720px) {
  .page-faq .faq-figure--square {
    max-width: 440px;
  }
}

/* ---------- 字段图例 ---------- */
.page-faq .faq-legend {
  margin: 0 0 clamp(20px, 2.6vw, 26px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-legend__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 640px) {
  .page-faq .faq-legend__row {
    grid-template-columns: 150px minmax(0, 1fr);
  }
}

.page-faq .faq-legend dt {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-legend dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--body-text);
}

/* ---------- 检索范围示例 ---------- */
.page-faq .faq-scope {
  margin: 0 0 clamp(20px, 2.6vw, 26px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-scope__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 760px) {
  .page-faq .faq-scope__row {
    grid-template-columns: 260px minmax(0, 1fr);
    align-items: baseline;
  }
}

.page-faq .faq-scope__cond {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--white);
  border-left: 2px solid var(--cyan);
  padding-left: 10px;
}

.page-faq .faq-scope__out {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-text);
}

/* ---------- 刷新节奏 ---------- */
.page-faq .faq-timing {
  list-style: none;
  margin: 0 0 clamp(20px, 2.6vw, 26px);
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-timing__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 16px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  transition: background 160ms ease;
}

@media (min-width: 720px) {
  .page-faq .faq-timing__row {
    grid-template-columns: 140px minmax(0, 1fr) auto;
  }
}

.page-faq .faq-timing__row:hover {
  background: var(--ink-800);
}

.page-faq .faq-timing__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-timing__desc {
  grid-column: 1 / -1;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-text);
}

@media (min-width: 720px) {
  .page-faq .faq-timing__desc {
    grid-column: auto;
  }
}

.page-faq .faq-timing__badge {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  border: 1px solid var(--line);
  padding: 3px 8px;
  white-space: nowrap;
}

/* ---------- 两端对比 ---------- */
.page-faq .faq-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 0 0 clamp(20px, 2.6vw, 26px);
}

@media (min-width: 720px) {
  .page-faq .faq-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-compare__col {
  background: var(--ink-800);
  padding: clamp(16px, 2vw, 22px);
}

.page-faq .faq-compare__col--alt {
  background: var(--ink-700);
}

.page-faq .faq-compare__tag {
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-faq .faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-faq .faq-list li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

/* ---------- 订阅选项 ---------- */
.page-faq .faq-subscribe {
  list-style: none;
  margin: 0 0 clamp(20px, 2.6vw, 26px);
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-faq .faq-subscribe__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 13px 15px;
  background: var(--ink-800);
  border-left: 2px solid transparent;
  transition: background 160ms ease, border-color 160ms ease;
}

.page-faq .faq-subscribe__item:hover {
  background: var(--ink-700);
  border-left-color: var(--cyan);
}

.page-faq .faq-subscribe__box {
  position: relative;
  width: 16px;
  height: 16px;
  border: 1px solid var(--line);
  background: var(--ink-900);
  transition: border-color 160ms ease, background 160ms ease;
}

.page-faq .faq-subscribe__item:hover .faq-subscribe__box {
  border-color: var(--cyan);
  background: rgba(51, 230, 206, 0.1);
}

.page-faq .faq-subscribe__item:hover .faq-subscribe__box::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--cyan);
}

.page-faq .faq-subscribe__label {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-subscribe__note {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  white-space: nowrap;
}

@media (max-width: 560px) {
  .page-faq .faq-subscribe__item {
    grid-template-columns: auto minmax(0, 1fr);
  }
  .page-faq .faq-subscribe__note {
    grid-column: 2;
    white-space: normal;
  }
}

/* ---------- 联系方式 ---------- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 0 0 clamp(20px, 2.6vw, 26px);
}

@media (min-width: 640px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-contact__item {
  background: var(--ink-800);
  padding: clamp(16px, 2vw, 22px);
}

.page-faq .faq-contact__label {
  margin: 0 0 10px;
  color: var(--cyan);
}

.page-faq .faq-contact__value {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.5vw, 17px);
  letter-spacing: 0.02em;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 降级动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-a {
    animation: none;
  }
  .page-faq .faq-item[open] .faq-q,
  .page-faq .faq-q,
  .page-faq .faq-index__link,
  .page-faq .faq-step,
  .page-faq .faq-subscribe__item {
    transition: none;
    transform: none;
  }
}
<<<END>>>