.page-faq {
  --faq-card-bg: #ffffff;
  --faq-body-text: #33485e;
  overflow-x: clip;
}

.page-faq .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(1.6rem, 4vw, 2.6rem) clamp(2.6rem, 6.5vw, 4.6rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(58% 68% at 88% 6%, rgba(45, 226, 230, 0.16), transparent 70%),
    radial-gradient(46% 62% at 6% 96%, rgba(255, 90, 31, 0.16), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
  margin-top: clamp(1.4rem, 3.5vw, 2.4rem);
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 6.4vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 0.85rem 0 1rem;
  color: var(--ice-white);
}

.page-faq .faq-hero__mark {
  color: var(--lime);
  display: inline-block;
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.6rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  color: var(--steel);
}

.page-faq .faq-hero__quick .num {
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--lime);
  margin-right: 0.35rem;
}

.page-faq .faq-hero__media {
  margin: 0;
  padding: 5px;
  background: linear-gradient(140deg, rgba(45, 226, 230, 0.55), rgba(255, 90, 31, 0.4));
  clip-path: var(--cut);
}

.page-faq .faq-hero__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  clip-path: var(--cut-sm);
}

.page-faq .faq-hero__media .media__caption {
  padding: 0.6rem 0.5rem 0.2rem;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--steel);
}

@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }
}

/* ---------- 问答双栏 ---------- */
.page-faq .faq-board-section {
  padding-block: clamp(2.4rem, 5.5vw, 4rem);
}

.page-faq .faq-board {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.75rem);
}

.page-faq .faq-index__label {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--midnight);
  opacity: 0.62;
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.55rem 0.7rem 0.55rem 0.85rem;
  border-left: 2px solid rgba(11, 39, 71, 0.16);
  color: var(--midnight);
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.5;
  transition: border-color 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-left-color: var(--track-orange);
  background: rgba(7, 26, 51, 0.06);
}

.page-faq .faq-index__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--track-orange);
}

.page-faq .faq-stream__title {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.4vw, 2.3rem);
  line-height: 1.15;
  margin: 0 0 0.55rem;
  color: var(--ice-blue);
}

.page-faq .faq-stream__sub {
  margin: 0 0 clamp(1.1rem, 2.5vw, 1.7rem);
  font-size: 0.88rem;
  line-height: 1.7;
  color: #4b6076;
}

.page-faq .faq-item {
  background: var(--faq-card-bg);
  border: 1px solid rgba(11, 39, 71, 0.12);
  border-left: 3px solid transparent;
  margin: 0 0 0.7rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--track-orange);
  box-shadow: 0 22px 44px -34px rgba(7, 26, 51, 0.85);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--track-orange);
}

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

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-size: 0.76rem;
  color: var(--track-orange);
}

.page-faq .faq-item__q {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ice-blue);
}

.page-faq .faq-item__body {
  padding: 0 1.1rem 1.15rem;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--faq-body-text);
}

.page-faq .faq-item__body p {
  margin: 0 0 0.7rem;
}

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

@media (max-width: 899px) {
  .page-faq .faq-index__list {
    display: flex;
    gap: 0.45rem;
    overflow-x: auto;
    padding-bottom: 0.4rem;
    scrollbar-width: thin;
  }

  .page-faq .faq-index__list li {
    flex: 0 0 auto;
  }

  .page-faq .faq-index__list a {
    border-left: 0;
    border: 1px solid rgba(11, 39, 71, 0.16);
    border-radius: 999px;
    padding: 0.42rem 0.85rem;
    font-size: 0.82rem;
    white-space: nowrap;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-board {
    grid-template-columns: minmax(190px, 250px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 1.6rem);
  }

  .page-faq .faq-item__body {
    padding-left: calc(1.1rem + 2.1rem);
  }
}

/* ---------- 三步提取 ---------- */
.page-faq .faq-steps {
  padding-block: clamp(2.4rem, 5.5vw, 4rem);
}

.page-faq .faq-steps__title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.4vw, 3rem);
  line-height: 1.08;
  margin: 0.7rem 0 0.9rem;
  color: var(--ice-white);
}

.page-faq .faq-steps__lede {
  max-width: 62ch;
  color: rgba(244, 248, 251, 0.76);
}

.page-faq .step-track {
  margin: clamp(1.6rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1rem;
}

.page-faq .step-card {
  padding: 1.4rem 1.2rem 1.3rem;
  background: linear-gradient(158deg, rgba(11, 39, 71, 0.95), rgba(7, 26, 51, 0.95));
  border: 1px solid var(--line-cyan);
  clip-path: var(--cut);
}

.page-faq .step-card__num {
  display: block;
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
  margin-bottom: 0.75rem;
}

.page-faq .step-card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ice-white);
}

.page-faq .step-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(244, 248, 251, 0.72);
}

@media (min-width: 760px) {
  .page-faq .step-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .serial-demo {
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  padding: clamp(1rem, 2.5vw, 1.5rem);
  background: rgba(11, 39, 71, 0.55);
  border: 1px solid var(--line-cyan);
  clip-path: var(--cut);
}

.page-faq .serial-demo__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  margin-bottom: 0.9rem;
}

.page-faq .serial-demo__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--aurora);
}

.page-faq .serial-demo__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.page-faq .serial-demo__table th,
.page-faq .serial-demo__table td {
  padding: 0.62rem 0.7rem;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
  white-space: nowrap;
}

.page-faq .serial-demo__table th {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .serial-demo__table td {
  color: var(--ice-white);
}

.page-faq .serial-demo__table tr.is-picked td {
  background: rgba(215, 255, 63, 0.14);
  color: var(--lime);
  font-weight: 600;
}

.page-faq .serial-demo__table tr.is-picked td:first-child {
  box-shadow: inset 3px 0 0 var(--lime);
}

.page-faq .serial-demo__note {
  margin: 0.9rem 0 0;
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- iOS 回看 ---------- */
.page-faq .section--panel {
  background: linear-gradient(180deg, var(--midnight), var(--ice-blue));
  color: var(--ice-white);
}

.page-faq .faq-ios {
  padding-block: clamp(2.4rem, 5.5vw, 4rem);
}

.page-faq .faq-ios__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.8rem);
  align-items: center;
}

.page-faq .faq-ios__media {
  margin: 0;
  clip-path: var(--cut);
  position: relative;
}

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

.page-faq .faq-ios__media .media__caption {
  margin-top: 0.65rem;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: rgba(244, 248, 251, 0.62);
}

.page-faq .faq-ios__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4.2vw, 2.85rem);
  line-height: 1.1;
  margin: 0.7rem 0 0.9rem;
  color: var(--ice-white);
}

.page-faq .faq-ios__body {
  margin: 0 0 1.4rem;
  max-width: 58ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(244, 248, 251, 0.76);
}

.page-faq .clock-list {
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
  border-top: 1px solid var(--line-cyan);
}

.page-faq .clock-list li {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding-top: 0.55rem;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 0.55rem;
}

.page-faq .clock-list__num {
  flex: 0 0 auto;
  min-width: 4.2rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--lime);
}

.page-faq .clock-list__txt {
  font-size: 0.86rem;
  line-height: 1.6;
  color: rgba(244, 248, 251, 0.72);
}

@media (min-width: 880px) {
  .page-faq .faq-ios__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }
}

/* ---------- 联系前准备 ---------- */
.page-faq .faq-prep {
  padding-block: clamp(2.4rem, 5.5vw, 4rem);
}

.page-faq .faq-prep__grid {
  align-items: start;
}

.page-faq .faq-prep__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4.2vw, 2.85rem);
  line-height: 1.1;
  margin: 0.7rem 0 0.9rem;
  color: var(--ice-blue);
}

.page-faq .faq-prep__body {
  margin: 0 0 1.3rem;
  max-width: 58ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--faq-body-text);
}

.page-faq .prep-list {
  margin: 0 0 1.6rem;
  padding: 0;
  list-style: none;
  counter-reset: prep;
  display: grid;
  gap: 0.6rem;
}

.page-faq .prep-list li {
  position: relative;
  padding: 0.7rem 0.9rem 0.7rem 2.5rem;
  background: rgba(217, 230, 242, 0.55);
  border-left: 3px solid var(--track-orange);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--faq-body-text);
  counter-increment: prep;
}

.page-faq .prep-list li::before {
  content: counter(prep, decimal-leading-zero);
  position: absolute;
  left: 0.85rem;
  top: 0.72rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--track-orange);
}

.page-faq .prep-list strong {
  color: var(--ice-blue);
}

.page-faq .prep-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-faq .prep-card {
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  clip-path: var(--cut);
}

.page-faq .prep-card__title {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.page-faq .prep-card__list {
  margin: 0;
  display: grid;
  gap: 0.1rem;
}

.page-faq .prep-card__row {
  display: grid;
  gap: 0.15rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .prep-card__row dt {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  opacity: 0.68;
}

.page-faq .prep-card__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .prep-card__note {
  margin: 1rem 0 0;
  font-size: 0.8rem;
  line-height: 1.75;
  opacity: 0.78;
}

@media (min-width: 620px) {
  .page-faq .prep-card__row {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0.9rem;
  }
}
<<<END>>>