/* ── 故障自救教程 · /tutorial/ ── */
.page-faq {
  --faq-soft: rgba(159, 178, 198, .14);
}

.page-faq .ca-wrap { min-width: 0; }

.page-faq .ca-section { padding-block: clamp(46px, 6.5vw, 92px); }

.page-faq section[id] { scroll-margin-top: 110px; }

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

.page-faq .ca-media__caption {
  margin-top: 10px;
  font-family: var(--ca-font-mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--ca-ice);
}

/* ── 首屏 ── */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(30px, 4vw, 52px) clamp(48px, 7vw, 96px);
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(47, 180, 154, .13), transparent 58%),
    radial-gradient(80% 70% at 4% 100%, rgba(200, 50, 43, .13), transparent 62%),
    var(--ca-ink);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 3.6vw, 46px);
  margin-top: clamp(6px, 1.4vw, 16px);
}

.page-faq .faq-hero__title {
  margin: clamp(12px, 1.6vw, 18px) 0 0;
  font-family: var(--ca-font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.6vw, 62px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--ca-frost);
  max-width: 20ch;
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin-top: clamp(16px, 2vw, 22px);
  max-width: 54ch;
  color: var(--ca-ice);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 2.6vw, 30px);
}

.page-faq .faq-hero__jump a {
  font-family: var(--ca-font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--ca-frost);
  text-decoration: none;
  padding: 9px 14px;
  border: 1px solid var(--ca-line);
  border-radius: var(--ca-radius-sm);
  background: rgba(18, 41, 74, .7);
  transition: color .18s var(--ca-ease), background-color .18s var(--ca-ease),
              border-color .18s var(--ca-ease), transform .18s var(--ca-ease);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  background: var(--ca-maple);
  border-color: var(--ca-maple);
  color: #fff;
  transform: translateY(-2px);
}

.page-faq .faq-hero__figure { margin: 0; }

.page-faq .faq-hero__figure .ca-media {
  border: 1px solid var(--ca-cedar);
  border-radius: var(--ca-radius);
  overflow: hidden;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: center;
  }
}

/* ── 01 现象自查表 ── */
.page-faq .faq-check {
  display: grid;
  margin-top: clamp(22px, 3vw, 38px);
  border-top: 1px solid var(--ca-line-ink);
}

.page-faq .faq-check__row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  grid-template-areas:
    "num info"
    ".   act";
  gap: 6px 16px;
  align-items: start;
  padding: 18px 6px;
  border-bottom: 1px solid var(--ca-line-ink);
  color: var(--ca-ink);
  text-decoration: none;
  transition: background-color .2s var(--ca-ease), padding-left .2s var(--ca-ease);
}

.page-faq .faq-check__row:hover,
.page-faq .faq-check__row:focus-visible {
  background: rgba(200, 50, 43, .07);
  padding-left: 14px;
}

.page-faq .faq-check__num {
  grid-area: num;
  padding-top: 2px;
  font-family: var(--ca-font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--ca-maple);
}

.page-faq .faq-check__info {
  grid-area: info;
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.page-faq .faq-check__name {
  font-size: 17.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-check__sign {
  font-size: 14px;
  line-height: 1.7;
  color: #55677C;
}

.page-faq .faq-check__act {
  grid-area: act;
  font-family: var(--ca-font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ca-maple-deep);
}

@media (min-width: 880px) {
  .page-faq .faq-check__row {
    grid-template-columns: 76px minmax(0, 1.35fr) minmax(0, .9fr);
    grid-template-areas: "num info act";
    align-items: center;
    gap: 24px;
    padding: 22px 8px;
  }
  .page-faq .faq-check__num { font-size: 38px; padding-top: 0; }
  .page-faq .faq-check__act { text-align: right; }
}

/* ── 02 三步找回 ── */
.page-faq .faq-flow { margin: clamp(22px, 3vw, 36px) 0 0; }

.page-faq .faq-flow .ca-media {
  border: 1px solid var(--ca-cedar);
  border-radius: var(--ca-radius);
  overflow: hidden;
}

.page-faq .faq-steps {
  list-style: none;
  margin: clamp(26px, 3.6vw, 46px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2vw, 22px);
}

.page-faq .faq-steps__item {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 2.6vw, 30px) clamp(20px, 2.4vw, 28px);
  background: var(--ca-ink-2);
  border: 1px solid var(--ca-cedar);
  border-radius: var(--ca-radius);
}

.page-faq .faq-steps__item::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ca-aurora), var(--ca-gold));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .4s var(--ca-ease);
}

.page-faq .faq-steps__item:hover::after { transform: scaleX(1); }

.page-faq .faq-steps__num {
  display: block;
  margin-bottom: clamp(14px, 1.8vw, 20px);
  font-family: var(--ca-font-mono);
  font-size: clamp(52px, 8vw, 82px);
  font-weight: 700;
  line-height: .88;
  letter-spacing: -.03em;
  color: var(--ca-gold);
}

.page-faq .faq-steps__title {
  margin: 0;
  font-size: clamp(18px, 2vw, 21px);
  font-weight: 700;
  color: var(--ca-frost);
}

.page-faq .faq-steps__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ca-ice);
}

.page-faq .faq-steps__copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .ca-copy__state {
  font-family: var(--ca-font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ca-aurora);
}

@media (min-width: 780px) {
  .page-faq .faq-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ── 03 旧版本处理顺序 ── */
.page-faq .faq-order {
  list-style: none;
  margin: clamp(24px, 3.2vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(20px, 2.6vw, 30px);
}

.page-faq .faq-order__item {
  padding-top: 20px;
  border-top: 2px solid var(--ca-maple);
}

.page-faq .faq-order__no {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--ca-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ca-maple-deep);
}

.page-faq .faq-order__title {
  margin: 0;
  font-size: clamp(18px, 2vw, 21px);
  font-weight: 700;
  color: var(--ca-ink);
}

.page-faq .faq-order__text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: #43566B;
}

.page-faq .faq-order__why {
  margin: 12px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--ca-aurora);
  font-size: 13.5px;
  line-height: 1.75;
  color: #5A6B7F;
}

@media (min-width: 840px) {
  .page-faq .faq-order { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ── 04 窄屏进入第二栏 ── */
.page-faq .faq-narrow {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-faq .faq-narrow__intro {
  margin: clamp(14px, 1.8vw, 20px) 0 0;
  max-width: 60ch;
  font-size: 16.5px;
  line-height: 1.9;
  color: #43566B;
}

.page-faq .faq-narrow__list {
  list-style: none;
  margin: clamp(18px, 2.2vw, 26px) 0 0;
  padding: 0;
  counter-reset: nlist;
  display: grid;
  gap: 12px;
}

.page-faq .faq-narrow__list li {
  position: relative;
  padding-left: 42px;
  counter-increment: nlist;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ca-ink);
}

.page-faq .faq-narrow__list li::before {
  content: counter(nlist, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--ca-font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--ca-maple);
}

.page-faq .faq-narrow__aside {
  padding: clamp(20px, 2.4vw, 28px);
  background: rgba(244, 247, 250, .72);
  border: 1px solid var(--ca-line-ink);
  border-radius: var(--ca-radius-sm);
}

.page-faq .faq-narrow__marks {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-narrow__marks li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: #43566B;
}

.page-faq .faq-narrow__marks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ca-aurora);
}

.page-faq .faq-narrow__aside .ca-btn { margin-top: 20px; }

.page-faq .faq-narrow code {
  font-family: var(--ca-font-mono);
  font-size: .92em;
  color: var(--ca-maple-deep);
  background: rgba(200, 50, 43, .09);
  padding: 1px 5px;
  border-radius: 3px;
}

@media (min-width: 900px) {
  .page-faq .faq-narrow {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr);
    align-items: start;
  }
}

/* ── 05 卡片库 ── */
.page-faq .faq-group {
  margin-top: clamp(30px, 4vw, 52px);
  scroll-margin-top: 110px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ca-line);
}

.page-faq .faq-group__badge {
  font-family: var(--ca-font-mono);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  color: var(--ca-ink);
  background: var(--ca-gold);
  padding: 5px 9px;
  border-radius: 2px;
}

.page-faq .faq-group__title {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 700;
  color: var(--ca-frost);
}

.page-faq .faq-cards {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.page-faq .faq-card {
  --faq-accent: var(--ca-cedar);
  background: var(--ca-ink-2);
  border: 1px solid var(--ca-line-soft);
  border-left: 3px solid var(--faq-accent);
  border-radius: var(--ca-radius-sm);
  transition: background-color .2s var(--ca-ease);
}

.page-faq .faq-card--break { --faq-accent: var(--ca-amber); }
.page-faq .faq-card--shift { --faq-accent: var(--ca-maple); }
.page-faq .faq-card--nav   { --faq-accent: var(--ca-aurora); }
.page-faq .faq-card--slow  { --faq-accent: var(--ca-gold); }

.page-faq .faq-card:hover { background: #16305A; }
.page-faq .faq-card[open] { background: #152C50; }

.page-faq .faq-card__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-card__head:focus-visible {
  outline: 2px solid var(--ca-gold);
  outline-offset: -2px;
}

.page-faq .faq-card__no {
  font-family: var(--ca-font-mono);
  font-size: 12px;
  line-height: 1;
  letter-spacing: .06em;
  color: var(--faq-accent);
  border: 1px solid currentColor;
  border-radius: 2px;
  padding: 3px 6px;
}

.page-faq .faq-card__title {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ca-frost);
}

.page-faq .faq-card__chev {
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--ca-ice);
  border-bottom: 1.5px solid var(--ca-ice);
  transform: rotate(45deg);
  transition: transform .22s var(--ca-ease);
}

.page-faq .faq-card[open] .faq-card__chev { transform: rotate(-135deg); }

.page-faq .faq-card__body {
  padding: 0 16px 18px;
  animation: faqReveal .3s var(--ca-ease);
}

@keyframes faqReveal {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

.page-faq .faq-card__why {
  margin: 0 0 14px;
  padding-left: 11px;
  border-left: 2px solid var(--ca-line);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ca-ice);
}

.page-faq .faq-card__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: fstep;
  display: grid;
  gap: 9px;
}

.page-faq .faq-card__steps li {
  position: relative;
  padding-left: 30px;
  counter-increment: fstep;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ca-frost);
}

.page-faq .faq-card__steps li::before {
  content: counter(fstep);
  position: absolute;
  left: 0;
  top: 3px;
  width: 19px;
  height: 19px;
  display: grid;
  place-items: center;
  border: 1.5px solid var(--faq-accent);
  border-radius: 50%;
  color: var(--faq-accent);
  font-family: var(--ca-font-mono);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}

.page-faq .faq-card__steps a {
  color: var(--ca-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-card__steps a:hover { color: var(--ca-frost); }

@media (min-width: 820px) {
  .page-faq .faq-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
}

/* ── 06 联系与反馈 ── */
.page-faq .faq-help {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}

.page-faq .faq-help__intro {
  margin: clamp(14px, 1.8vw, 20px) 0 0;
  max-width: 58ch;
  font-size: 16.5px;
  line-height: 1.9;
  color: #43566B;
}

.page-faq .faq-help__contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: clamp(18px, 2.2vw, 26px);
}

.page-faq .faq-help__contact .ca-copy {
  border: 1px solid var(--ca-cedar);
  background: rgba(255, 255, 255, .72);
  color: var(--ca-ink);
  border-radius: var(--ca-radius-sm);
  transition: border-color .18s var(--ca-ease), background-color .18s var(--ca-ease);
}

.page-faq .faq-help__contact .ca-copy:hover { border-color: var(--ca-maple); }

.page-faq .faq-help__line {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: #43566B;
}

.page-faq .faq-help__line strong {
  color: var(--ca-ink);
  font-weight: 700;
}

.page-faq .faq-help__aside {
  padding: clamp(20px, 2.4vw, 28px);
  background: rgba(255, 255, 255, .55);
  border: 1px solid var(--ca-line-ink);
  border-radius: var(--ca-radius-sm);
}

.page-faq .faq-help__aside h3 {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ca-ink);
}

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

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.8;
  color: #43566B;
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ca-maple);
}

.page-faq .faq-help__privacy {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--ca-font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ca-cedar);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-faq .faq-help__privacy:hover { color: var(--ca-maple-deep); }

@media (min-width: 900px) {
  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

/* ── 收尾 ── */
.page-faq .faq-final {
  background:
    radial-gradient(90% 120% at 85% 0%, rgba(200, 50, 43, .2), transparent 60%),
    var(--ca-ink);
}

.page-faq .faq-final__big {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 24ch;
  font-family: var(--ca-font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 44px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--ca-frost);
  text-wrap: balance;
}

.page-faq .faq-final__row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card__body { animation: none; }
  .page-faq .faq-steps__item::after { transition: none; }
  .page-faq .faq-card__chev { transition: none; }
}
<<<END>>>