.page-faq {
  --faq-rail-w: 206px;
  --faq-gap: clamp(22px, 3.6vw, 40px);
  padding-bottom: clamp(56px, 9vw, 104px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4.6vw, 52px) 0 clamp(22px, 3.4vw, 38px);
  border-bottom: 1px solid var(--line);
  background-image:
    radial-gradient(120% 140% at 88% -14%, rgba(75, 227, 176, .15), transparent 58%),
    linear-gradient(180deg, rgba(18, 51, 43, .75), transparent 74%);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 20em;
  font-family: var(--sans);
  font-size: clamp(27px, 5vw, 44px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 46em;
  font-family: var(--serif);
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.72;
  color: var(--scroll-text);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 1px;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-stats li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 12px 14px;
  background: var(--ink);
}

.page-faq .faq-stats__n {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--amber);
}

.page-faq .faq-stats__k {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mute);
}

/* ---------- 外壳：分类索引 + 问答流 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-top: clamp(24px, 4vw, 42px);
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mute);
}

.page-faq .faq-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  background: var(--ink);
  border-left: 2px solid transparent;
  color: var(--white);
  font-size: 14.5px;
  line-height: 1.4;
  text-decoration: none;
  transition: color 120ms linear, background-color 120ms linear, border-color 120ms linear;
}

.page-faq .faq-index__num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mute);
  transition: color 120ms linear;
}

.page-faq .faq-index__link:hover {
  background: var(--ink-2);
  color: var(--neon);
}

.page-faq .faq-index__link.is-active {
  background: var(--ink-2);
  border-left-color: var(--neon);
  color: var(--neon);
}

.page-faq .faq-index__link.is-active .faq-index__num {
  color: var(--neon);
}

.page-faq .faq-rail__cta {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-cat {
  padding-bottom: clamp(30px, 4.4vw, 52px);
  margin-bottom: clamp(32px, 5vw, 58px);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: clamp(18px, 4vw, 40px);
}

.page-faq .faq-cat:last-of-type {
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.page-faq .faq-cat__title {
  margin: 10px 0 0;
  font-size: clamp(21px, 2.6vw, 28px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-cat__desc {
  margin: 12px 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

.page-faq .faq-figure {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-faq .qa {
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .qa:first-child {
  border-top-color: var(--line);
}

.page-faq .qa__q {
  position: relative;
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.54;
  letter-spacing: -0.005em;
  color: var(--white);
}

.page-faq .qa__q::before {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  margin-bottom: 11px;
  background: var(--neon);
}

.page-faq .qa__a {
  font-size: 15px;
  line-height: 1.78;
  color: var(--scroll-text);
}

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

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

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

.page-faq .qa__more a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .qa__more a:hover {
  border-bottom-color: var(--neon);
}

/* ---------- 内联价格小表 ---------- */
.page-faq .price-mini {
  margin: 16px 0;
  padding: clamp(13px, 2vw, 20px);
  border-left: 3px solid var(--amber);
}

.page-faq .price-mini__scroll {
  overflow-x: auto;
}

.page-faq .price-mini__table {
  width: 100%;
  min-width: 400px;
  border-collapse: collapse;
  font-size: 14px;
  color: var(--ink-text);
}

.page-faq .price-mini__table th,
.page-faq .price-mini__table td {
  padding: 9px 10px;
  text-align: left;
  border-bottom: 1px solid var(--paper-line);
  vertical-align: middle;
}

.page-faq .price-mini__table thead th {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-text);
  opacity: 0.62;
}

.page-faq .price-mini__table tbody tr:last-child th,
.page-faq .price-mini__table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .price-mini__table tbody tr:hover {
  background: rgba(242, 179, 61, 0.12);
}

.page-faq .price-mini__name {
  display: inline-block;
  padding-bottom: 1px;
  border-bottom: 2px solid var(--amber);
  font-weight: 700;
  color: var(--ink-text);
}

.page-faq .price-mini__fee {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  white-space: nowrap;
  text-align: right;
  color: var(--ink-text);
}

/* ---------- iOS 反馈 ---------- */
.page-faq .ios-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-faq .ios-shot {
  margin: 0;
}

.page-faq .ios-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .ios-node {
  display: block;
  padding-right: 14px;
  text-decoration: none;
}

.page-faq .ios-node::before {
  content: "";
  display: block;
  height: 2px;
  margin-bottom: 12px;
  background: var(--neon);
  opacity: 0.85;
}

.page-faq .ios-node:last-child::before {
  background: linear-gradient(90deg, var(--neon), rgba(75, 227, 176, 0.08));
}

.page-faq .ios-node__n {
  display: block;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-faq .ios-node__t {
  display: block;
  margin-top: 5px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--white);
  transition: color 120ms linear;
}

.page-faq .ios-node:hover .ios-node__t,
.page-faq .ios-node:focus-visible .ios-node__t {
  color: var(--neon);
}

.page-faq .steps {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .steps li {
  position: relative;
  padding: 0 0 22px 46px;
  counter-increment: faqstep;
  scroll-margin-top: clamp(18px, 4vw, 40px);
}

.page-faq .steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 600;
  color: var(--neon);
}

.page-faq .steps li::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 22px;
  bottom: 2px;
  width: 1px;
  background: var(--line-soft);
}

.page-faq .steps li:last-child {
  padding-bottom: 0;
}

.page-faq .steps li:last-child::after {
  display: none;
}

.page-faq .steps__t {
  margin: 0 0 6px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .steps li p {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--scroll-text);
}

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

.page-faq .ios-note {
  margin-top: clamp(22px, 3vw, 32px);
  padding: 16px 18px;
  background: var(--ink-2);
  border-left: 3px solid var(--neon-dim);
}

.page-faq .ios-note p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--scroll-text);
}

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

/* ---------- 收尾联系块 ---------- */
.page-faq .faq-help {
  padding: clamp(24px, 4vw, 44px);
  background: linear-gradient(160deg, var(--ink-2), var(--ink) 62%);
  border: 1px solid var(--line);
  border-top: 3px solid var(--amber);
  scroll-margin-top: clamp(18px, 4vw, 40px);
}

.page-faq .faq-help__title {
  margin: 12px 0 0;
  font-size: clamp(20px, 2.6vw, 27px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-help__lead p {
  margin: 12px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--scroll-text);
}

.page-faq .faq-help__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-help__row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  padding: 12px 14px;
  background: var(--ink);
}

.page-faq .faq-help__row dt {
  min-width: 5.5em;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
  align-self: center;
}

.page-faq .faq-help__row dd {
  margin: 0;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-help__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-faq .ios-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .ios-node {
    padding-right: clamp(10px, 2vw, 22px);
  }

  .page-faq .qa {
    grid-template-columns: minmax(0, 14.5rem) minmax(0, 1fr);
    gap: clamp(16px, 3vw, 36px);
    align-items: start;
  }

  .page-faq .qa__q {
    padding-top: 2px;
  }
}

@media (min-width: 780px) {
  .page-faq .ios-grid {
    grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.6fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: clamp(24px, 7vh, 76px);
    align-self: start;
  }

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

  .page-faq .faq-rail__cta {
    display: block;
    text-align: center;
  }

  .page-faq .qa__a--ruled {
    padding-right: clamp(14px, 2.4vw, 30px);
    border-right: 1px solid var(--line-soft);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .ios-node__t {
    transition: none;
  }
}