.page-faq {
  --faq-tint: rgba(54, 242, 192, 0.1);
  --faq-warm: rgba(255, 138, 61, 0.12);
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
}

.page-faq a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 2rem) 0 clamp(2rem, 5vw, 3.25rem);
  border-bottom: 1px solid var(--grid);
  background:
    radial-gradient(120% 90% at 88% -20%, var(--faq-tint), transparent 62%),
    radial-gradient(90% 80% at -10% 10%, var(--faq-warm), transparent 58%),
    var(--ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(to right, rgba(29, 59, 84, 0.55) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(to bottom, rgba(29, 59, 84, 0.4) 0 1px, transparent 1px 72px);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 82%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 82%);
  pointer-events: none;
}

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

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 0.45rem;
  color: var(--edge);
}

.page-faq .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.page-faq .breadcrumb__current {
  color: var(--text);
}

.page-faq .index-label {
  color: var(--muted);
  font-family: var(--font-num);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 0.9rem;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 5.6vw, 3.6rem);
  line-height: 1.14;
  letter-spacing: 0.005em;
  margin: 0;
  max-width: 20ch;
}

.page-faq .faq-hero__lede {
  margin: 1.15rem 0 0;
  max-width: 62ch;
  font-size: clamp(0.95rem, 1.7vw, 1.065rem);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin-top: 1.9rem;
  border-top: 1px solid var(--grid);
}

.page-faq .faq-stat {
  padding: 1rem 0.9rem 0 0;
  border-bottom: 1px solid rgba(29, 59, 84, 0.5);
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  letter-spacing: 0.06em;
  color: var(--teal);
  line-height: 1.2;
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 3vw, 2.75rem);
  padding-block: clamp(1.75rem, 4vw, 3rem) clamp(2.5rem, 6vw, 4rem);
}

.page-faq .faq-index {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
}

.page-faq .faq-index .index-label {
  margin-bottom: 0.35rem;
}

.page-faq .faq-index__list {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  margin: 0;
  padding: 0 0 0.55rem;
  list-style: none;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--edge);
  font-size: 0.845rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  border-color: var(--teal-deep);
  background: var(--panel);
}

.page-faq .faq-index__num {
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--teal);
}

.page-faq .faq-index__figure {
  display: none;
  margin: 0;
}

.page-faq .faq-index__figure .media-frame {
  display: block;
  overflow: hidden;
  border: 1px solid var(--grid);
}

.page-faq .faq-index__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.92;
}

.page-faq .faq-index__figure .media-frame__caption {
  margin-top: 0.55rem;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-index__help {
  border: 1px solid var(--edge);
  border-left: 2px solid var(--orange);
  background: var(--module);
  padding: 0.9rem 1rem;
}

.page-faq .faq-index__help-title {
  margin: 0 0 0.35rem;
  font-size: 0.88rem;
  color: var(--text);
}

.page-faq .faq-index__help-text {
  margin: 0 0 0.65rem;
  font-size: 0.79rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-index__help-link {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid var(--teal-deep);
}

.page-faq .faq-index__help-link:hover,
.page-faq .faq-index__help-link:focus-visible {
  color: var(--text);
  border-bottom-color: var(--text);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding-block: clamp(1.5rem, 3.2vw, 2.4rem);
  border-top: 1px solid var(--grid);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-faq .faq-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-section__head {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.page-faq .faq-section__head .index-label {
  margin: 0;
  color: var(--teal);
  flex: none;
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.4rem, 3vw, 2.05rem);
  line-height: 1.25;
  color: var(--text);
}

.page-faq .faq-section__intro {
  margin: 0 0 1.35rem;
  max-width: 66ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-figure {
  margin: 0 0 1.5rem;
}

.page-faq .faq-figure .media-frame {
  display: block;
  overflow: hidden;
  border: 1px solid var(--grid);
  background: var(--module);
}

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

.page-faq .faq-figure .media-frame__caption {
  margin-top: 0.6rem;
  font-size: 0.76rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 设备路径卡 ---------- */
.page-faq .faq-devices {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
  margin-bottom: 1.6rem;
}

.page-faq .faq-device {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.1rem 1.1rem 1.2rem;
  background: var(--module);
  border: 1px solid var(--edge);
  min-width: 0;
}

.page-faq .faq-device--focus {
  border-color: var(--teal-deep);
  background: linear-gradient(170deg, rgba(54, 242, 192, 0.13), rgba(54, 242, 192, 0.02) 65%), var(--module);
  box-shadow: inset 0 1px 0 rgba(54, 242, 192, 0.4);
}

.page-faq .faq-device__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-faq .faq-dot {
  width: 8px;
  height: 8px;
  display: inline-block;
  border-radius: 50%;
  background: var(--muted);
  flex: none;
}

.page-faq .faq-dot--teal {
  background: var(--teal);
  box-shadow: 0 0 0 3px rgba(54, 242, 192, 0.18);
}

.page-faq .faq-dot--orange {
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 138, 61, 0.16);
}

.page-faq .faq-device__flag {
  font-family: var(--font-num);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: var(--teal);
  padding: 0.15rem 0.4rem;
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 1.85rem;
  font-size: 0.885rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.12rem;
  font-family: var(--font-num);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--teal);
}

.page-faq .faq-device--focus .faq-steps li::before {
  color: var(--teal);
}

.page-faq .faq-device__note {
  margin: auto 0 0;
  padding-top: 0.65rem;
  border-top: 1px solid var(--grid);
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 手风琴问答 ---------- */
.page-faq .faq-list {
  border-bottom: 1px solid var(--grid);
}

.page-faq .faq-item {
  border-top: 1px solid var(--grid);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.95rem 0.2rem 0.95rem 0;
  cursor: pointer;
  list-style: none;
  font-size: 0.955rem;
  line-height: 1.65;
  font-weight: 500;
  color: var(--text);
  transition: color 0.18s ease;
}

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

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  color: var(--teal);
  outline: none;
}

.page-faq .faq-item__num {
  flex: none;
  min-width: 2.1rem;
  padding-top: 0.15rem;
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--teal-deep);
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--teal);
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__icon {
  position: relative;
  flex: none;
  width: 0.9rem;
  height: 0.9rem;
  margin-top: 0.4rem;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  background: var(--teal);
  transition: transform 0.22s ease;
}

.page-faq .faq-item__icon::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-item__a {
  padding: 0 0 1.05rem;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-item__a ul {
  margin: 0.55rem 0 0;
  padding-left: 1.1rem;
  list-style: none;
}

.page-faq .faq-item__a li {
  position: relative;
  margin-bottom: 0.35rem;
}

.page-faq .faq-item__a li::before {
  content: "";
  position: absolute;
  left: -1.1rem;
  top: 0.72rem;
  width: 0.42rem;
  height: 1px;
  background: var(--teal-deep);
}

.page-faq .faq-item__a a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid var(--teal-deep);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--text);
  border-bottom-color: var(--text);
}

/* ---------- 提醒档位 ---------- */
.page-faq .faq-tiers {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.7rem;
  margin-bottom: 1.5rem;
}

.page-faq .faq-tier {
  padding: 0.9rem 1rem 1rem;
  background: linear-gradient(155deg, var(--faq-warm), transparent 78%), var(--module);
  border: 1px solid var(--edge);
  border-left: 3px solid var(--orange);
  min-width: 0;
}

.page-faq .faq-tier__time {
  margin: 0;
  font-family: var(--font-num);
  font-size: 1.3rem;
  letter-spacing: 0.06em;
  color: var(--orange-soft);
  line-height: 1.2;
}

.page-faq .faq-tier__title {
  margin: 0.35rem 0 0.3rem;
  font-size: 0.86rem;
  color: var(--text);
}

.page-faq .faq-tier__desc {
  margin: 0;
  font-size: 0.79rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 检索方式 ---------- */
.page-faq .faq-methods {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.page-faq .faq-method {
  padding: 0.8rem 0.85rem 0.9rem;
  background: linear-gradient(160deg, var(--panel), var(--module));
  border: 1px solid var(--grid);
  min-width: 0;
}

.page-faq .faq-method__k {
  display: block;
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--teal);
  margin-bottom: 0.3rem;
}

.page-faq .faq-method__t {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text);
}

.page-faq .faq-method__d {
  margin: 0.3rem 0 0;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 同步对照 ---------- */
.page-faq .faq-kv {
  display: grid;
  border-top: 1px solid var(--grid);
  margin-bottom: 1.5rem;
}

.page-faq .faq-kv__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.15rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--grid);
}

.page-faq .faq-kv__k {
  margin: 0;
  font-size: 0.86rem;
  color: var(--text);
}

.page-faq .faq-kv__v {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 客服 ---------- */
.page-faq .faq-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.2rem;
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 1.55rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 0.6rem;
  height: 0.6rem;
  border: 1px solid var(--teal-deep);
  background: rgba(54, 242, 192, 0.12);
}

.page-faq .faq-contact {
  padding: 1.1rem 1.15rem 1.25rem;
  background: var(--module);
  border: 1px solid var(--edge);
  border-top: 2px solid var(--teal);
}

.page-faq .faq-contact__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--grid);
  font-size: 0.85rem;
}

.page-faq .faq-contact__label {
  color: var(--muted);
}

.page-faq .faq-contact__value {
  color: var(--text);
  word-break: break-all;
  text-align: right;
}

.page-faq .faq-contact__value--num {
  font-family: var(--font-num);
  letter-spacing: 0.04em;
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-item__a {
    padding-left: 2.85rem;
  }

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

  .page-faq .faq-kv__row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 1rem;
    align-items: baseline;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-stat {
    padding-right: 1rem;
    border-bottom: 0;
    border-right: 1px solid rgba(29, 59, 84, 0.6);
  }

  .page-faq .faq-stat:last-child {
    border-right: 0;
  }

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

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

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 264px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--grid);
  }

  .page-faq .faq-index__link {
    width: 100%;
    justify-content: flex-start;
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    padding: 0.55rem 0.75rem;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    background: var(--panel);
    border-left-color: var(--teal);
    color: var(--text);
  }

  .page-faq .faq-index__figure {
    display: block;
  }

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

  .page-faq .faq-support {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 1.5rem;
    align-items: start;
  }
}

@media (min-width: 1160px) {
  .page-faq .faq-hero__lede {
    max-width: 58ch;
  }

  .page-faq .faq-section__intro {
    max-width: 62ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-index__link,
  .page-faq .faq-item > summary {
    transition: none;
  }
}
<<<END>>>