.page-faq {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--text-light);
  padding-block: clamp(1.25rem, 3vw, 2rem) clamp(2.25rem, 6vw, 4.5rem);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -18%;
  bottom: -40%;
  width: 70%;
  height: 90%;
  background: radial-gradient(58% 58% at 50% 50%, rgba(123, 77, 255, 0.22), transparent 72%);
  pointer-events: none;
}

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

.page-faq .faq-hero__split {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .faq-hero__text .eyebrow {
  color: rgba(233, 241, 245, 0.55);
  margin: 0 0 0.9rem;
}

.page-faq .faq-hero__text h1 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 1.1rem;
}

.page-faq .faq-hero__text .lede {
  color: rgba(233, 241, 245, 0.8);
  max-width: 36rem;
  margin: 0;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.25rem, 3vw, 1.9rem);
}

/* 首屏右侧分类状态板 */
.page-faq .faq-hero__panel {
  border: var(--hair-light);
  border-radius: var(--r-m);
  background: linear-gradient(165deg, rgba(19, 44, 68, 0.92), rgba(9, 26, 42, 0.7));
  padding: clamp(1rem, 2.5vw, 1.6rem);
}

.page-faq .faq-hero__panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid rgba(233, 241, 245, 0.14);
  color: rgba(233, 241, 245, 0.62);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
}

.page-faq .faq-hero__live {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(35, 213, 230, 0.16);
}

.page-faq .faq-hero__tracks {
  list-style: none;
  margin: 0.85rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.page-faq .faq-hero__tracks li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.7rem;
  padding: 0.5rem 0.65rem;
  border-radius: var(--r-s);
  border-left: 2px solid transparent;
  background: rgba(233, 241, 245, 0.05);
  font-size: 0.9rem;
}

.page-faq .faq-hero__tracks li .mono {
  color: rgba(233, 241, 245, 0.5);
  font-size: 0.72rem;
}

.page-faq .faq-hero__tracks li:nth-child(1) { border-left-color: var(--cyan); }
.page-faq .faq-hero__tracks li:nth-child(2) { border-left-color: var(--orange); }
.page-faq .faq-hero__tracks li:nth-child(3) { border-left-color: var(--moss); }
.page-faq .faq-hero__tracks li:nth-child(4) { border-left-color: var(--clay); }
.page-faq .faq-hero__tracks li:nth-child(5) { border-left-color: var(--violet-b); }
.page-faq .faq-hero__tracks li:nth-child(6) { border-left-color: var(--mist); }

.page-faq .faq-hero__track-label {
  font-family: var(--font-heading);
  letter-spacing: 0.01em;
}

/* ---------- 顶部命令条 ---------- */
.page-faq .faq-cmd {
  background: var(--ink-2);
  color: var(--text-light);
}

.page-faq .faq-cmd__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid rgba(233, 241, 245, 0.12);
}

.page-faq .faq-cmd__list li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.85rem clamp(0.75rem, 2vw, 1.4rem);
  border-bottom: 1px solid rgba(233, 241, 245, 0.12);
}

.page-faq .faq-cmd__list li:nth-child(odd) {
  border-right: 1px solid rgba(233, 241, 245, 0.12);
}

.page-faq .faq-cmd__val {
  font-size: clamp(0.95rem, 2.2vw, 1.1rem);
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-faq .faq-cmd__key {
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: rgba(233, 241, 245, 0.62);
}

/* ---------- 分类索引 + 折叠问答 ---------- */
.page-faq .faq-index {
  background: var(--paper);
}

.page-faq .faq-index__head {
  max-width: 44rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .faq-index__intro {
  margin: 0.75rem 0 0;
  color: var(--stone);
  line-height: 1.75;
  font-size: 0.96rem;
}

.page-faq .faq-index__grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.5rem);
}

.page-faq .faq-rail {
  border: var(--hair-dark);
  border-radius: var(--r-m);
  background: var(--mist);
  padding: clamp(1rem, 2.5vw, 1.4rem);
}

.page-faq .faq-rail__title {
  margin: 0 0 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--moss);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.6rem 0.35rem;
  border-bottom: var(--hair-dark);
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-rail__list li:last-child .faq-rail__link {
  border-bottom: none;
}

.page-faq .faq-rail__link .mono {
  font-size: 0.72rem;
  color: var(--stone);
  letter-spacing: 0.06em;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--cyan-ink);
  background: rgba(244, 240, 230, 0.6);
}

.page-faq .faq-rail__link:hover .mono,
.page-faq .faq-rail__link:focus-visible .mono {
  color: var(--cyan-ink);
}

.page-faq .faq-rail__count {
  color: var(--clay);
}

.page-faq .faq-rail__media {
  margin: 1rem 0 0;
}

/* 问答组 */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  padding-block: clamp(1rem, 3vw, 1.6rem);
  border-top: 1px solid rgba(11, 31, 51, 0.16);
  scroll-margin-top: 5rem;
}

.page-faq .faq-group:first-child {
  border-top: none;
  padding-top: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin-bottom: 0.9rem;
}

.page-faq .faq-group__no {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--orange-ink);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  letter-spacing: 0.01em;
}

.page-faq .faq-group__tag {
  margin-left: auto;
}

.page-faq .faq-item {
  margin-bottom: 0.55rem;
  border: var(--hair-dark);
  border-radius: var(--r-s);
  background: rgba(255, 255, 255, 0.55);
  transition: background 0.22s var(--ease), border-color 0.22s var(--ease);
}

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

.page-faq .faq-item[open] {
  background: #ffffff;
  border-color: rgba(35, 213, 230, 0.6);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 0.7rem;
  padding: 0.85rem clamp(0.8rem, 2vw, 1.05rem);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  line-height: 1.55;
}

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

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

.page-faq .faq-item__idx {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--stone);
  padding-top: 0.22rem;
}

.page-faq .faq-item[open] .faq-item__idx {
  color: var(--orange-ink);
}

.page-faq .faq-item__sign {
  position: relative;
  width: 0.75rem;
  height: 0.75rem;
  margin-top: 0.35rem;
  flex: none;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--stone);
  transition: transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-item__sign::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
}

.page-faq .faq-item__sign::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: scaleY(0);
}

.page-faq .faq-item[open] .faq-item__sign::before {
  background: var(--orange);
}

.page-faq .faq-item__a {
  padding: 0 clamp(0.8rem, 2vw, 1.05rem) clamp(0.85rem, 2vw, 1.05rem);
}

.page-faq .faq-item__a p {
  margin: 0 0 0.65rem;
  color: var(--stone);
  font-size: 0.92rem;
  line-height: 1.78;
}

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

.page-faq .faq-item__a a {
  color: var(--cyan-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 124, 135, 0.4);
}

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

.page-faq .faq-item__a .faq-item__path {
  margin: 0.75rem 0 0;
  padding: 0.5rem 0.7rem;
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--r-s) var(--r-s) 0;
  background: rgba(35, 213, 230, 0.1);
  color: var(--cyan-ink);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.7;
  letter-spacing: 0.01em;
  overflow-wrap: anywhere;
}

/* ---------- 查找路径 ---------- */
.page-faq .faq-map {
  background: var(--mist);
}

.page-faq .faq-map__head {
  max-width: 44rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-map__intro {
  margin: 0.75rem 0 0;
  color: var(--stone);
  font-size: 0.96rem;
  line-height: 1.75;
}

.page-faq .faq-map__grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.25rem);
}

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

.page-faq .faq-map__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-map__step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border-left: 2px solid var(--moss);
  border-radius: var(--r-s);
  background: rgba(244, 240, 230, 0.78);
}

.page-faq .faq-map__step-no {
  font-size: 0.8rem;
  color: var(--moss);
  letter-spacing: 0.08em;
  padding-top: 0.15rem;
}

.page-faq .faq-map__step-title {
  margin: 0 0 0.3rem;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  letter-spacing: 0.01em;
}

.page-faq .faq-map__step p {
  margin: 0;
  color: var(--stone);
  font-size: 0.88rem;
  line-height: 1.72;
}

.page-faq .faq-map__step a {
  color: var(--cyan-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 124, 135, 0.4);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-contact {
  background: var(--ink);
  color: var(--text-light);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-faq .faq-contact__text .sec-code {
  color: var(--cyan);
}

.page-faq .faq-contact__text .sec-title {
  color: var(--text-light);
}

.page-faq .faq-contact__lede {
  margin: 0.85rem 0 0;
  max-width: 34rem;
  color: rgba(233, 241, 245, 0.76);
  font-size: 0.96rem;
  line-height: 1.8;
}

.page-faq .faq-contact__tips {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-faq .faq-contact__tips li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.7rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(233, 241, 245, 0.8);
}

.page-faq .faq-contact__tip-no {
  font-size: 0.72rem;
  color: var(--orange);
  letter-spacing: 0.08em;
  padding-top: 0.25rem;
}

.page-faq .faq-contact__back {
  margin: 1.35rem 0 0;
  font-size: 0.86rem;
  color: rgba(233, 241, 245, 0.6);
}

.page-faq .faq-contact__back a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(35, 213, 230, 0.45);
}

.page-faq .faq-contact__card {
  border: var(--hair-light);
  border-radius: var(--r-m);
  background: rgba(19, 44, 68, 0.72);
  padding: clamp(1rem, 2.5vw, 1.6rem);
}

.page-faq .faq-contact__card-title {
  margin: 0 0 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: rgba(233, 241, 245, 0.55);
}

.page-faq .faq-contact .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(233, 241, 245, 0.13);
}

.page-faq .faq-contact .contact-row__key {
  flex: 0 0 5rem;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: rgba(233, 241, 245, 0.55);
}

.page-faq .faq-contact .contact-row__val {
  flex: 1 1 12rem;
  min-width: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-light);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact .copy-btn {
  padding: 0.3rem 0.7rem;
  border: 1px solid rgba(35, 213, 230, 0.5);
  border-radius: var(--r-s);
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-contact .copy-btn:hover,
.page-faq .faq-contact .copy-btn:focus-visible {
  background: rgba(35, 213, 230, 0.16);
}

.page-faq .faq-contact__note {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  line-height: 1.72;
  color: rgba(233, 241, 245, 0.62);
}

.page-faq .faq-contact__cta {
  display: inline-block;
  margin-top: 1.25rem;
}

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

  .page-faq .faq-cmd__list li:nth-child(odd) {
    border-right: none;
  }

  .page-faq .faq-cmd__list li + li {
    border-left: 1px solid rgba(233, 241, 245, 0.12);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__split {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: end;
  }

  .page-faq .faq-index__grid {
    grid-template-columns: minmax(0, 290px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 5rem;
    align-self: start;
  }

  .page-faq .faq-map__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-index__grid {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: 3.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-rail__link,
  .page-faq .faq-contact .copy-btn {
    transition: none;
  }
}
<<<END>>>