.page-faq {
  --faq-rule: var(--mist);
  --faq-gap: clamp(14px, 2.4vw, 22px);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-faq a {
  color: var(--ice-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq a:hover,
.page-faq a:focus-visible {
  color: var(--maple);
}

.page-faq :focus-visible {
  outline: 2px solid var(--ice-deep);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(22px, 4vw, 38px) clamp(40px, 6vw, 72px);
  background: var(--sand);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: 52%;
  height: 132%;
  transform: skewX(-13deg);
  background: linear-gradient(158deg, rgba(11, 61, 46, 0.92) 0%, rgba(11, 61, 46, 0.62) 58%, rgba(11, 61, 46, 0) 100%);
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate);
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(22px, 3.5vw, 40px);
  align-items: end;
}

.page-faq .faq-hero__intro .kicker {
  color: var(--maple);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 6.4vw, 60px);
  line-height: 1.06;
  letter-spacing: 0.005em;
  color: var(--ink);
}

.page-faq .faq-hero .lede {
  max-width: 46ch;
  margin: 0 0 22px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--pine);
  border-top: 1px solid rgba(11, 61, 46, 0.25);
  padding-top: 14px;
}

.page-faq .faq-hero__meta .mono {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--maple);
}

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

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border-radius: var(--r-s);
  filter: saturate(0.92) contrast(1.02);
}

/* ---------- 热门问题 ---------- */
.page-faq .faq-hot {
  margin-top: clamp(28px, 4.5vw, 46px);
}

.page-faq .faq-hot__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--pine);
}

.page-faq .faq-hot__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 600;
  color: var(--pine);
}

.page-faq .faq-hot__hint {
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--slate);
}

.page-faq .faq-hot__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 16px;
}

.page-faq .faq-hot__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 16px 18px;
  background: var(--paper);
  border: 1px solid var(--faq-rule);
  border-left: 3px solid var(--maple);
  border-radius: var(--r-s);
  text-decoration: none;
  color: var(--ink);
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-hot__card:hover,
.page-faq .faq-hot__card:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
  border-color: var(--pine);
}

.page-faq .faq-hot__num {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--maple);
}

.page-faq .faq-hot__q {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .faq-hot__a {
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  padding-block: clamp(34px, 5vw, 68px) clamp(40px, 6vw, 80px);
  background: var(--paper);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

.page-faq .faq-index {
  background: var(--pine);
  border-radius: var(--r-s);
  padding: 14px 14px 10px;
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-index__head {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ice);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

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

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--sand);
  text-decoration: none;
  border: 1px solid rgba(244, 233, 216, 0.28);
  border-radius: 999px;
  white-space: nowrap;
  transition: background-color 150ms var(--ease), color 150ms var(--ease), border-color 150ms var(--ease);
}

.page-faq .faq-index__link .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: rgba(244, 233, 216, 0.12);
  color: var(--white);
}

.page-faq .faq-index__link[aria-current="true"] {
  background: var(--sand);
  color: var(--pine);
  border-color: var(--sand);
}

.page-faq .faq-index__link[aria-current="true"] .mono {
  color: var(--maple);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(34px, 5vw, 58px);
  scroll-margin-top: calc(var(--head-h) + 24px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-group__num {
  flex: none;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--maple);
  letter-spacing: -0.02em;
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.8vw, 30px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--pine);
}

.page-faq .faq-group__sub {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 54ch;
}

/* ---------- 手风琴 ---------- */
.page-faq .qa {
  margin-bottom: 10px;
  background: var(--paper);
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-s);
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-faq .qa[open] {
  border-color: var(--pine);
  box-shadow: var(--shadow-soft);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  list-style: none;
}

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

.page-faq .qa__num {
  flex: none;
  padding-top: 3px;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--maple);
}

.page-faq .qa__qtext {
  flex: 1 1 auto;
}

.page-faq .qa__icon {
  flex: none;
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border: 1px solid var(--pine);
  border-radius: 3px;
}

.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  background: var(--pine);
  transition: transform 160ms var(--ease), opacity 160ms var(--ease);
}

.page-faq .qa__icon::before {
  top: 8px;
  left: 3px;
  width: 10px;
  height: 1.5px;
}

.page-faq .qa__icon::after {
  top: 3px;
  left: 8px;
  width: 1.5px;
  height: 10px;
}

.page-faq .qa[open] .qa__icon {
  border-color: var(--maple);
}

.page-faq .qa[open] .qa__icon::before,
.page-faq .qa[open] .qa__icon::after {
  background: var(--maple);
}

.page-faq .qa[open] .qa__icon::after {
  opacity: 0;
}

.page-faq .qa__a {
  padding: 2px 16px 16px 16px;
  border-top: 1px dashed var(--faq-rule);
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink);
}

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

.page-faq .qa__a > p:first-child {
  margin-top: 14px;
}

.page-faq .qa__steps {
  margin: 12px 0;
  padding-left: 1.2em;
}

.page-faq .qa__steps li {
  margin-bottom: 8px;
  padding-left: 4px;
}

.page-faq .qa__steps li::marker {
  color: var(--maple);
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-faq .qa__a .copy-btn {
  margin-top: 8px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--pine);
  background: transparent;
  border: 1px solid var(--faq-rule);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 150ms var(--ease), border-color 150ms var(--ease), color 150ms var(--ease);
}

.page-faq .qa__a .copy-btn:hover,
.page-faq .qa__a .copy-btn:focus-visible {
  background: var(--sand);
  border-color: var(--pine);
}

.page-faq .qa__a .copy-btn[data-copied] {
  background: var(--pine);
  border-color: var(--pine);
  color: var(--white);
}

/* ---------- 三步流程图 ---------- */
.page-faq .faq-flowwrap {
  margin: 22px 0 clamp(24px, 3.5vw, 34px);
  padding: 16px;
  background: var(--sand);
  border-radius: var(--r-s);
  border: 1px solid rgba(11, 61, 46, 0.14);
}

.page-faq .faq-flowwrap__caption {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-flowwrap__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-flow {
  display: block;
  width: 100%;
  min-width: 520px;
  height: auto;
}

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

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border-radius: var(--r-s);
  border: 1px solid var(--faq-rule);
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

/* ---------- 设备卡 ---------- */
.page-faq .faq-devices {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 22px;
}

.page-faq .faq-device {
  padding: 16px;
  background: var(--sand);
  border-radius: var(--r-s);
  border-top: 3px solid var(--pine);
}

.page-faq .faq-device__tag {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--maple);
}

.page-faq .faq-device__steps {
  margin: 0 0 10px;
  padding-left: 1.15em;
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-device__steps li {
  margin-bottom: 5px;
}

.page-faq .faq-device__steps li::marker {
  color: var(--pine);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-faq .faq-device__note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 术语表 ---------- */
.page-faq .faq-terms {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
}

.page-faq .faq-term {
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-term:first-child {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-term dt {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--pine);
  margin-bottom: 6px;
}

.page-faq .faq-term dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--slate);
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-help {
  scroll-margin-top: calc(var(--head-h) + 24px);
  background: var(--pine);
  color: var(--sand);
  border-radius: var(--r-l);
  padding: clamp(22px, 4vw, 40px);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -8%;
  width: 42%;
  height: 160%;
  background: linear-gradient(200deg, rgba(200, 16, 46, 0.35), rgba(200, 16, 46, 0));
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-faq .faq-help__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-help__tag {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-help__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  line-height: 1.24;
  color: var(--paper);
}

.page-faq .faq-help__text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist);
  max-width: 46ch;
}

.page-faq .faq-help__link {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-help__link a {
  color: var(--ice);
}

.page-faq .faq-help__link a:hover,
.page-faq .faq-help__link a:focus-visible {
  color: var(--paper);
}

.page-faq .faq-help__panel {
  background: rgba(251, 247, 239, 0.07);
  border: 1px solid rgba(251, 247, 239, 0.2);
  border-radius: var(--r-s);
  padding: 16px;
  backdrop-filter: blur(4px);
}

.page-faq .faq-help__panel .contact-list {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__panel .contact-list__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(217, 228, 232, 0.24);
}

.page-faq .faq-help__panel .contact-list__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-help__panel .contact-list__key {
  flex: none;
  width: 38px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ice);
}

.page-faq .faq-help__panel .contact-list__val {
  flex: 1 1 auto;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-help__panel .copy-btn {
  flex: none;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--sand);
  background: transparent;
  border: 1px solid rgba(244, 233, 216, 0.4);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 150ms var(--ease), color 150ms var(--ease);
}

.page-faq .faq-help__panel .copy-btn:hover,
.page-faq .faq-help__panel .copy-btn:focus-visible {
  background: var(--sand);
  color: var(--pine);
}

.page-faq .faq-help__panel .copy-btn[data-copied] {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
}

.page-faq .faq-help__panel .contact-list__note {
  margin: 0 0 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-help__btn {
  display: inline-block;
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-hot__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-terms {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 36px);
  }

  .page-faq .faq-term:nth-child(2) {
    border-top: 1px solid var(--faq-rule);
  }
}

@media (min-width: 760px) {
  .page-faq .faq-hot__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-faq .faq-hot__card {
    grid-column: span 2;
  }

  .page-faq .faq-hot__card:nth-child(4),
  .page-faq .faq-hot__card:nth-child(5) {
    grid-column: span 3;
  }

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

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }

  .page-faq .qa__a {
    padding-left: 55px;
    padding-right: 26px;
  }

  .page-faq .qa__q {
    padding-left: 18px;
    padding-right: 26px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero::before {
    width: 46%;
    right: -10%;
  }

  .page-faq .faq-layout {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: clamp(34px, 4vw, 62px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--head-h) + 20px);
    padding: 18px 16px 14px;
  }

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list li {
    margin-bottom: 6px;
  }

  .page-faq .faq-index__link {
    display: flex;
    border-radius: var(--r-s);
    font-size: 13.5px;
    padding: 9px 11px;
    white-space: normal;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hot__card,
  .page-faq .qa,
  .page-faq .qa__icon::before,
  .page-faq .qa__icon::after,
  .page-faq .copy-btn,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .faq-hot__card:hover,
  .page-faq .faq-hot__card:focus-visible {
    transform: none;
  }
}
<<<END>>>