.page-faq {
  --faq-sticky: 92px;
  --faq-line: var(--line);
  background: var(--paper-100);
  color: var(--body-text);
  overflow-x: clip;
}

.page-faq .container {
  max-width: var(--container);
}

.page-faq .breadcrumb {
  padding-top: 18px;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
}

.page-faq .breadcrumb__link {
  color: var(--stone-500);
  text-decoration: none;
}

.page-faq .breadcrumb__link[aria-current="page"] {
  color: var(--deep-700);
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--amber-600);
  text-decoration: underline;
}

.page-faq .breadcrumb__sep {
  color: var(--line-strong);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(30px, 4vw, 56px) 0 clamp(28px, 4vw, 52px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
}

.page-faq .faq-hero__copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6vw, 58px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--deep-900);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--body-text);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--deep-700);
}

.page-faq .faq-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-meta-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber-400);
  flex: none;
}

.page-faq .faq-meta-dot--celadon {
  background: var(--celadon-500);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper-0);
  overflow: hidden;
}

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

.page-faq .faq-hero__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 14px;
  background: var(--deep-900);
  color: var(--amber-400);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
}

/* ---------- 类型选择 ---------- */
.page-faq .faq-picker-section {
  padding: 0 0 clamp(32px, 5vw, 60px);
}

.page-faq .faq-picker-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .16em;
  color: var(--stone-500);
  text-transform: uppercase;
}

.page-faq .faq-picker {
  display: grid;
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-picker__item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num title"
    "num text";
  column-gap: 12px;
  row-gap: 6px;
  padding: 18px 16px 18px 18px;
  background: var(--paper-0);
  color: var(--ink-900);
  text-decoration: none;
  transition: background-color .2s ease, transform .2s ease;
}

.page-faq .faq-picker__item:hover,
.page-faq .faq-picker__item:focus-visible {
  background: var(--paper-200);
}

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

.page-faq .faq-picker__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--deep-500);
  line-height: 1.1;
}

.page-faq .faq-picker__title {
  grid-area: title;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--deep-900);
}

.page-faq .faq-picker__text {
  grid-area: text;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone-500);
}

.page-faq .faq-picker__dot {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--celadon-500);
}

/* ---------- 主体索引 + 问答 ---------- */
.page-faq .faq-main {
  padding: clamp(22px, 3vw, 36px) 0 clamp(44px, 6vw, 80px);
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-main__title {
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .16em;
  color: var(--stone-500);
  text-transform: uppercase;
}

.page-faq .faq-main__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-index {
  align-self: start;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .15em;
  color: var(--amber-600);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-index__item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 10px 11px 12px;
  border-left: 3px solid transparent;
  color: var(--deep-700);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: border-color .18s ease, background-color .18s ease, color .18s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-left-color: var(--amber-400);
  background: var(--glass-light);
  color: var(--deep-900);
}

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

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--celadon-500);
  flex: none;
}

.page-faq .faq-index__foot {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--stone-500);
}

.page-faq .faq-index__foot a {
  color: var(--deep-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-group {
  scroll-margin-top: var(--faq-sticky);
  margin-bottom: clamp(30px, 4vw, 48px);
}

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

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding-top: 14px;
  border-top: 2px solid var(--deep-700);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  color: var(--amber-600);
  padding-top: 3px;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.3vw, 25px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--deep-900);
}

.page-faq .faq-group__note {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone-500);
}

.page-faq .faq-list {
  margin-top: 14px;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 4px 15px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-900);
  transition: color .18s ease;
}

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

.page-faq .faq-item__q::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border: 2px solid var(--deep-500);
  border-radius: 50%;
  transition: background-color .18s ease, border-color .18s ease;
}

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--amber-600);
  padding-left: 10px;
}

.page-faq .faq-item[open] > .faq-item__q::before {
  background: var(--celadon-500);
  border-color: var(--celadon-500);
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--deep-500);
}

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

.page-faq .faq-item__a {
  margin: 0 0 16px;
  padding: 14px 16px;
  background: var(--paper-0);
  border: 1px solid var(--line);
  border-left: 3px solid var(--celadon-500);
  border-radius: var(--radius);
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--body-text);
}

.page-faq .faq-mono {
  font-family: var(--font-mono);
  font-size: .95em;
  color: var(--deep-700);
  background: rgba(217, 164, 65, .14);
  padding: 0 3px;
  border-radius: 2px;
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  background: var(--deep-900);
  color: var(--paper-100);
  padding: clamp(34px, 5vw, 64px) 0;
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: center;
}

.page-faq .faq-contact__figure {
  margin: 0;
  border: 1px solid var(--line-invert);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.page-faq .faq-contact__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber-400);
  text-transform: uppercase;
}

.page-faq .faq-contact__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--paper-0);
}

.page-faq .faq-contact__text {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(246, 242, 233, .78);
}

.page-faq .faq-channels {
  margin: 22px 0 0;
  border-top: 1px solid var(--line-invert);
}

.page-faq .faq-channel {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-invert);
}

.page-faq .faq-channel__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--amber-400);
  padding-top: 3px;
}

.page-faq .faq-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--paper-0);
  overflow-wrap: anywhere;
}

.page-faq .faq-channel__action {
  grid-column: 2;
  margin: 0;
}

.page-faq .faq-copy {
  border: 1px solid rgba(246, 242, 233, .32);
  background: transparent;
  color: var(--amber-400);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  padding: 5px 11px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease;
}

.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  background: var(--amber-600);
  border-color: var(--amber-600);
  color: var(--paper-0);
}

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

.page-faq .faq-copy[data-copied] {
  border-color: var(--celadon-500);
  color: var(--paper-0);
  background: var(--celadon-500);
}

.page-faq .faq-channel__link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--celadon-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-channel__link:hover,
.page-faq .faq-channel__link:focus-visible {
  color: var(--amber-400);
}

.page-faq .faq-contact__hint {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(246, 242, 233, .58);
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-route-section {
  padding: clamp(34px, 5vw, 64px) 0 clamp(46px, 6vw, 80px);
}

.page-faq .faq-route {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper-0);
  padding: clamp(22px, 3vw, 34px);
}

.page-faq .faq-route__head {
  max-width: 60ch;
}

.page-faq .faq-route__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--clay-500);
  text-transform: uppercase;
}

.page-faq .faq-route__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.8vw, 29px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--deep-900);
}

.page-faq .faq-route__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-faq .faq-route__steps {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-route__step {
  background: var(--paper-100);
  padding: 18px 16px;
}

.page-faq .faq-route__stepnum {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--amber-600);
}

.page-faq .faq-route__steptitle {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--deep-900);
}

.page-faq .faq-route__steptext {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--stone-500);
}

.page-faq .faq-route__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-picker {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-channel {
    grid-template-columns: 72px minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-faq .faq-channel__action {
    grid-column: 3;
    align-self: center;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    align-items: end;
  }

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

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-main__grid {
    grid-template-columns: minmax(0, 292px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-picker__item,
  .page-faq .faq-index__link,
  .page-faq .faq-copy,
  .page-faq .faq-item__q,
  .page-faq .faq-item__q::before {
    transition: none;
  }
}
<<<END>>>