.page-faq {
  background: var(--ink-950);
  color: var(--mist);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 56px) 0 clamp(44px, 7vw, 84px);
  background:
    radial-gradient(120% 80% at 88% -10%, rgba(0, 229, 199, .18), transparent 62%),
    radial-gradient(90% 70% at 0% 105%, rgba(242, 180, 65, .12), transparent 66%),
    var(--ink-950);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -16%;
  right: -14%;
  width: min(620px, 88vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 199, .16);
  box-shadow:
    0 0 0 44px rgba(0, 229, 199, .055),
    0 0 0 96px rgba(0, 229, 199, .034),
    0 0 0 154px rgba(0, 229, 199, .02);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(30px, 5vw, 52px);
}

.page-faq .faq-hero__index {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  margin: 16px 0 8px;
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(78px, 19vw, 168px);
  line-height: .78;
  letter-spacing: -.07em;
  color: var(--gold);
  text-shadow: 0 0 48px rgba(242, 180, 65, .3);
}

.page-faq .faq-hero__note {
  max-width: 9em;
  margin-bottom: 4px;
  padding-left: 12px;
  border-left: 1px solid var(--line-cyan);
  font-size: 12px;
  line-height: 1.75;
  letter-spacing: .1em;
  color: var(--mist-dim);
}

.page-faq h1 {
  margin: 0 0 16px;
  font-size: clamp(27px, 5vw, 44px);
  line-height: 1.22;
  letter-spacing: -.01em;
  font-weight: 900;
  color: var(--mist-strong);
  max-width: 20em;
}

.page-faq .faq-hero .lede {
  margin: 0 0 22px;
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--mist-dim);
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__panel {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .faq-figure {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line-cyan);
  background: linear-gradient(160deg, rgba(0, 229, 199, .12), rgba(11, 27, 43, .92) 68%);
  box-shadow: 0 26px 60px rgba(0, 0, 0, .42);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist-dim);
}

.page-faq .faq-preview {
  padding: 16px 18px 18px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: rgba(18, 42, 63, .58);
}

.page-faq .faq-preview__head {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan-soft);
}

.page-faq .faq-preview ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-preview__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(215, 230, 234, .1);
}

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

.page-faq .faq-preview__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: .04em;
}

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

/* ---------- 通用区块 ---------- */
.page-faq .faq-block {
  padding: clamp(46px, 7vw, 88px) 0;
  position: relative;
}

.page-faq .faq-block--deep {
  background:
    radial-gradient(80% 60% at 100% 0%, rgba(0, 229, 199, .07), transparent 60%),
    var(--ink-900);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(24px, 4vw, 40px);
  max-width: 58ch;
}

.page-faq .faq-head__no {
  font-family: var(--font-mono);
  font-size: clamp(30px, 6vw, 56px);
  line-height: 1;
  letter-spacing: .02em;
  color: rgba(242, 180, 65, .82);
}

.page-faq .faq-head__title {
  margin: 0;
  font-size: clamp(21px, 3.2vw, 31px);
  line-height: 1.32;
  font-weight: 800;
  color: var(--mist-strong);
}

.page-faq .faq-head__lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist-dim);
}

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

.page-faq .faq-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist-dim);
}

.page-faq .faq-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 199, .16);
}

.page-faq .faq-list strong {
  color: var(--mist-strong);
}

/* ---------- 六步清单 ---------- */
.page-faq .faq-steps__grid {
  display: grid;
  gap: 22px;
}

.page-faq .faq-steps__list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  min-height: 58px;
  padding: 16px 18px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(18, 42, 63, .74), rgba(11, 27, 43, .6));
  cursor: pointer;
  transition: border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease);
}

.page-faq .faq-step > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-step::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 199, .26), transparent 70%);
  transform: translate(-50%, -50%);
  opacity: 0;
  pointer-events: none;
  transition: width .6s var(--ease), height .6s var(--ease), opacity .6s var(--ease);
}

.page-faq .faq-step:hover::after,
.page-faq .faq-step:focus-within::after {
  width: 560px;
  height: 560px;
  opacity: 1;
}

.page-faq .faq-step:hover {
  border-color: var(--line-cyan);
}

.page-faq .faq-step input {
  appearance: none;
  -webkit-appearance: none;
  width: 26px;
  height: 26px;
  margin: 1px 0 0;
  border-radius: 9px;
  border: 1.5px solid var(--line-cyan);
  background: rgba(7, 19, 31, .6);
  display: grid;
  place-items: center;
  cursor: pointer;
  flex: none;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-step input::after {
  content: "";
  width: 11px;
  height: 6px;
  margin-top: -3px;
  border-left: 2px solid var(--ink-950);
  border-bottom: 2px solid var(--ink-950);
  transform: rotate(-45deg) scale(.3);
  opacity: 0;
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

.page-faq .faq-step input:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-step input:checked::after {
  opacity: 1;
  transform: rotate(-45deg) scale(1);
}

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

.page-faq .faq-step__body {
  display: grid;
  gap: 4px;
}

.page-faq .faq-step__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-faq .faq-step__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--mist-strong);
}

.page-faq .faq-step__desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-dim);
}

.page-faq .faq-step:has(input:checked) {
  border-color: var(--line-cyan);
  background: linear-gradient(135deg, rgba(0, 229, 199, .1), rgba(11, 27, 43, .7));
}

.page-faq .faq-aside {
  padding: 20px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: rgba(7, 19, 31, .55);
  align-self: start;
}

.page-faq .faq-aside__title {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-faq .faq-alert {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--r-md);
  border: 1px solid rgba(255, 107, 90, .4);
  background: rgba(255, 107, 90, .08);
}

.page-faq .faq-alert .status-dot {
  width: 9px;
  height: 9px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 4px rgba(255, 107, 90, .18);
}

.page-faq .faq-alert p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(255, 226, 222, .92);
}

/* ---------- 设备与屏幕 ---------- */
.page-faq .faq-device-layout {
  display: grid;
  gap: 22px;
  margin-bottom: 28px;
}

.page-faq .faq-figure--device {
  border-color: var(--line);
  background: linear-gradient(150deg, rgba(242, 180, 65, .1), rgba(11, 27, 43, .92) 62%);
}

.page-faq .faq-device-grid {
  display: grid;
  gap: 14px;
}

.page-faq .faq-device-card {
  padding: 18px 20px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: rgba(18, 42, 63, .5);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}

.page-faq .faq-device-card:hover {
  border-color: var(--line-cyan);
  transform: translateY(-2px);
}

.page-faq .faq-device-card h3 {
  margin: 12px 0 12px;
  font-size: 16px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--mist-strong);
}

.page-faq .faq-table {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: rgba(7, 19, 31, .5);
}

.page-faq .faq-table .data-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table .data-table caption {
  padding: 14px 18px;
  text-align: left;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan-soft);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table .data-table th,
.page-faq .faq-table .data-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
  border-bottom: 1px solid rgba(215, 230, 234, .08);
}

.page-faq .faq-table .data-table thead th {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
  background: rgba(18, 42, 63, .7);
  font-weight: 600;
}

.page-faq .faq-table .data-table tbody td {
  color: var(--mist-dim);
}

.page-faq .faq-table .data-table tbody td:first-child {
  color: var(--mist-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  white-space: nowrap;
}

.page-faq .faq-table .data-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table .data-table tbody tr:hover td {
  background: rgba(0, 229, 199, .05);
}

/* ---------- 入口与收藏 ---------- */
.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-cyan);
  background: rgba(0, 229, 199, .08);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan-soft);
}

.page-faq .faq-qa {
  display: grid;
  gap: 12px;
}

.page-faq .faq-q {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: rgba(18, 42, 63, .5);
  overflow: hidden;
}

.page-faq .faq-q > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--mist-strong);
  transition: color .2s var(--ease);
}

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

.page-faq .faq-q > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
  transition: transform .3s var(--ease);
}

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

.page-faq .faq-q[open] > summary {
  color: var(--cyan-soft);
}

.page-faq .faq-q__body {
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist-dim);
}

.page-faq .faq-q__body p {
  margin: 0;
}

.page-faq .faq-inline-link {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist-dim);
}

.page-faq .faq-inline-link a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-faq .faq-inline-link a:hover {
  color: var(--cyan-soft);
}

/* ---------- 迁移 ---------- */
.page-faq .faq-table--wide .data-table {
  min-width: 620px;
}

.page-faq .faq-migrate-links {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-link-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 14px;
  row-gap: 4px;
  padding: 16px 18px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: rgba(18, 42, 63, .45);
  text-decoration: none;
  transition: border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease);
}

.page-faq .faq-link-card:hover {
  border-color: var(--line-cyan);
  background: rgba(0, 229, 199, .07);
  transform: translateY(-2px);
}

.page-faq .faq-link-card__no {
  grid-row: 1 / span 2;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--gold);
}

.page-faq .faq-link-card__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--mist-strong);
}

.page-faq .faq-link-card__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-dim);
}

/* ---------- 咨询前准备 ---------- */
.page-faq .faq-prep-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 26px;
}

.page-faq .faq-prep-card {
  padding: 20px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(18, 42, 63, .8), rgba(11, 27, 43, .6));
}

.page-faq .faq-prep-card__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-faq .faq-prep-card h3 {
  margin: 10px 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--mist-strong);
}

.page-faq .faq-prep-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist-dim);
}

.page-faq .faq-copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-cyan);
  background: rgba(0, 229, 199, .06);
}

.page-faq .faq-copy-row__text {
  flex: 1 1 220px;
  min-width: 0;
}

.page-faq .faq-copy-row__label {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mist-dim);
}

.page-faq .faq-copy-row__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.4vw, 17px);
  color: var(--mist-strong);
  overflow-wrap: anywhere;
}

.page-faq .faq-copy-row .btn {
  flex: none;
}

/* ---------- 结尾 ---------- */
.page-faq .faq-cta {
  padding: clamp(40px, 6vw, 72px) 0 clamp(48px, 7vw, 84px);
  background:
    radial-gradient(90% 100% at 15% 0%, rgba(242, 180, 65, .14), transparent 62%),
    var(--ink-950);
  border-top: 1px solid var(--line);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 22px;
  align-items: center;
}

.page-faq .faq-cta h2 {
  margin: 8px 0 10px;
  font-size: clamp(21px, 3.2vw, 30px);
  line-height: 1.34;
  font-weight: 800;
  color: var(--mist-strong);
  max-width: 24em;
}

.page-faq .faq-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist-dim);
  max-width: 44ch;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

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

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

@media (min-width: 920px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: start;
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, .78fr);
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .page-faq .faq-device-layout {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    align-items: start;
  }

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

  .page-faq .faq-device-card {
    padding: 16px 18px;
  }

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

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

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    justify-items: end;
  }

  .page-faq .faq-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-device-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-step::after,
  .page-faq .faq-device-card,
  .page-faq .faq-link-card,
  .page-faq .faq-q > summary::after {
    transition: none;
  }

  .page-faq .faq-step:hover::after,
  .page-faq .faq-step:focus-within::after {
    width: 0;
    height: 0;
    opacity: 0;
  }

  .page-faq .faq-device-card:hover,
  .page-faq .faq-link-card:hover {
    transform: none;
  }
}