.page-faq {
  --faq-gap: 20px;
  --faq-measure: 58ch;
  background: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(111, 191, 158, .10), rgba(246, 243, 236, 0) 62%),
    var(--paper);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-hero__lead {
  max-width: 640px;
}

.page-faq .faq-hero__lead .lede {
  margin-top: 16px;
  color: var(--muted);
}

.page-faq .faq-hero__note {
  margin-top: 18px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--summer-ink);
  border-left: 3px solid var(--summer);
  padding-left: 10px;
}

.page-faq .faq-quick {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-quick__item {
  display: grid;
  grid-template-columns: 42px 1fr;
  grid-template-areas:
    "no title"
    "no text";
  align-items: start;
  gap: 4px 14px;
  padding: 18px 18px 20px;
  background: var(--paper);
  text-decoration: none;
  color: inherit;
  transition: background-color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-quick__item:hover,
.page-faq .faq-quick__item:focus-visible {
  background: var(--paper-2);
}

.page-faq .faq-quick__no {
  grid-area: no;
  font-size: 20px;
  color: var(--signal);
  line-height: 1.2;
}

.page-faq .faq-quick__title {
  grid-area: title;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.45;
  color: var(--ink);
}

.page-faq .faq-quick__text {
  grid-area: text;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 主体分组 ---------- */
.page-faq .faq-body__stack {
  display: grid;
  gap: 52px;
}

.page-faq .faq-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding-top: 26px;
  border-top: 3px solid var(--g, var(--spring));
}

.page-faq .faq-group--spring { --g: var(--spring); --g-ink: var(--spring-ink); }
.page-faq .faq-group--summer { --g: var(--summer); --g-ink: var(--summer-ink); }
.page-faq .faq-group--autumn { --g: var(--autumn); --g-ink: var(--autumn-ink); }
.page-faq .faq-group--winter { --g: var(--winter); --g-ink: var(--winter-ink); }

.page-faq .faq-group__rail {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-faq .faq-group__no {
  font-size: 40px;
  line-height: 1;
  font-weight: 500;
  color: var(--g-ink, var(--spring-ink));
  letter-spacing: -.02em;
}

.page-faq .faq-group__body {
  min-width: 0;
}

.page-faq .faq-group__intro {
  margin-top: 10px;
  max-width: var(--faq-measure);
  color: var(--muted);
}

.page-faq .faq-group__intro + .faq-item {
  margin-top: 22px;
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item:first-of-type {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 8px;
  border: 1px solid var(--g, var(--spring));
  background: transparent;
  transition: background-color .18s var(--ease);
}

.page-faq .faq-item[open] > summary::before {
  background: var(--g, var(--spring));
}

.page-faq .faq-item__q {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  margin: 0;
}

.page-faq .faq-item__a {
  padding: 0 0 20px 22px;
  max-width: var(--faq-measure);
  color: var(--muted);
}

.page-faq .faq-item__a p + p {
  margin-top: 10px;
}

.page-faq .faq-item__a a {
  color: var(--summer-ink);
  text-decoration-color: var(--winter);
  text-underline-offset: 3px;
}

/* ---------- 步骤清单 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 12px;
  align-items: start;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-step__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 22px;
  font-size: 13px;
  color: #fff;
  background: var(--signal);
}

.page-faq .faq-steps--check {
  margin-top: 22px;
  border-top: 1px solid var(--line);
  gap: 0;
}

.page-faq .faq-steps--check .check-item {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-steps--check .check-item__btn {
  width: 20px;
  height: 20px;
  margin-top: 4px;
  border: 1px solid var(--autumn);
  background: transparent;
  cursor: pointer;
  position: relative;
}

.page-faq .faq-steps--check .check-item__btn::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--autumn-ink);
  border-bottom: 2px solid var(--autumn-ink);
  transform: rotate(42deg) scale(0);
  transform-origin: center;
  transition: transform .16s var(--ease);
}

.page-faq .faq-steps--check .check-item.is-done .check-item__btn::after {
  transform: rotate(42deg) scale(1);
}

.page-faq .faq-steps--check .check-item__text {
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-steps--check .check-item.is-done .check-item__text {
  color: var(--muted);
}

.page-faq .faq-steps--check .check-item__text a {
  color: var(--summer-ink);
  text-underline-offset: 3px;
}

/* ---------- 版本号 ---------- */
.page-faq .faq-ver {
  font-family: var(--mono);
  font-size: 15px;
  padding: 1px 7px;
  color: var(--autumn-ink);
  background: var(--paper-2);
  border: 1px solid var(--autumn);
}

/* ---------- 图文并排 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 22px;
}

.page-faq .faq-split__col {
  min-width: 0;
}

.page-faq .faq-figure {
  margin: 0;
  max-width: 100%;
}

.page-faq .faq-figure .media__frame {
  border: 1px solid var(--line);
  background: var(--deep);
  overflow: hidden;
}

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

.page-faq .faq-figure .media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-figure--wide {
  margin-top: 26px;
}

/* ---------- 账号与设备面板 ---------- */
.page-faq .faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 22px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-panel {
  background: var(--paper);
  padding: 20px 20px 22px;
}

.page-faq .faq-panel__title {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-panel p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 数据条 ---------- */
.page-faq .faq-stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 22px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-stat {
  background: var(--paper-2);
  padding: 16px 16px 18px;
  display: grid;
  gap: 6px;
}

.page-faq .faq-stat__num {
  font-size: 30px;
  line-height: 1;
  color: var(--summer-ink);
  letter-spacing: -.01em;
}

.page-faq .faq-stat__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 档位列表 ---------- */
.page-faq .faq-tier-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-tier-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.75;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-tier-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

/* ---------- 客服收束区 ---------- */
.page-faq .faq-help {
  border-top: 3px solid var(--signal);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-help__eyebrow {
  color: var(--winter);
}

.page-faq .faq-help__title {
  color: var(--paper);
  margin-top: 8px;
}

.page-faq .faq-help__text {
  margin-top: 14px;
  max-width: 52ch;
  color: rgba(246, 243, 236, .78);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-help__side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .faq-help__box {
  border: 1px solid rgba(169, 182, 189, .4);
  padding: 18px 18px 20px;
}

.page-faq .faq-help__box--line {
  border-color: rgba(226, 84, 44, .55);
}

.page-faq .faq-help__box-title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
  margin: 0 0 12px;
}

.page-faq .faq-prepare {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-prepare li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(246, 243, 236, .8);
}

.page-faq .faq-prepare li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 9px;
  height: 1px;
  background: var(--autumn);
}

.page-faq .faq-help__line {
  font-size: 15px;
  line-height: 1.9;
  color: var(--paper);
}

.page-faq .faq-help__line + .faq-help__line {
  color: rgba(246, 243, 236, .8);
}

/* ---------- 窄屏收尾 ---------- */
@media (max-width: 419px) {
  .page-faq .faq-stat-row {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-quick__item {
    grid-template-columns: 34px 1fr;
    padding: 16px 14px 18px;
  }
}

/* ---------- 桌面两栏 ---------- */
@media (min-width: 880px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 48px;
    align-items: end;
  }

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

  .page-faq .faq-body__stack {
    gap: 72px;
  }

  .page-faq .faq-group {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 44px;
    padding-top: 34px;
  }

  .page-faq .faq-group__rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-group__no {
    font-size: 54px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 34px;
  }

  .page-faq .faq-grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-stat-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 1160px) {
  .page-faq .faq-group {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-item__q {
    font-size: 19px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}
<<<END>>>