.page-faq {
  --faq-stick: 68px;
  --faq-rule: 1px solid var(--line);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(30px, 5vw, 62px) clamp(26px, 4vw, 52px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-faq .faq-hero__copy {
  display: grid;
  gap: 16px;
  justify-items: start;
  min-width: 0;
}

.page-faq .faq-hero__copy .breadcrumbs {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-hero__copy .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
}

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

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 16em;
  font-family: var(--font-display);
  font-size: clamp(32px, 5.6vw, 62px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 48ch;
  color: var(--muted);
}

.page-faq .faq-hero__cta {
  margin-top: 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__media {
  margin: 0;
  max-width: 320px;
  justify-self: start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-panel);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

@media (min-width: 880px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
  }
  .page-faq .faq-hero__media {
    justify-self: end;
    max-width: 340px;
  }
}

/* ---------- 快速跳转带 ---------- */
.page-faq .faq-jump {
  position: sticky;
  top: var(--faq-stick);
  z-index: 15;
  background: rgba(6, 10, 28, 0.94);
  backdrop-filter: blur(14px);
  border-block: var(--faq-rule);
}

.page-faq .faq-jump__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-block: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-jump__inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-jump__label {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-faq .faq-jump__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background-color 240ms var(--ease);
}

.page-faq .faq-jump__link .mono {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--glass);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-block: clamp(38px, 5.6vw, 72px);
  border-top: var(--faq-rule);
  scroll-margin-top: 128px;
}

.page-faq .faq-group__inner {
  display: grid;
  gap: clamp(22px, 3vw, 44px);
}

.page-faq .faq-group__head {
  display: grid;
  align-content: start;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-group__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(32px, 4.4vw, 56px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.6vw, 36px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 42ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-group__body {
  min-width: 0;
  border-top: var(--faq-rule);
}

@media (min-width: 980px) {
  .page-faq .faq-group__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border-bottom: var(--faq-rule);
}

.page-faq .faq-item__heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.page-faq .faq-q {
  display: flex;
  width: 100%;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 19px 0;
  background: none;
  border: 0;
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(17px, 1.3vw, 20px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.005em;
  text-align: left;
  cursor: pointer;
  transition: color 160ms var(--ease);
}

.page-faq .faq-q:hover {
  color: var(--cyan);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.page-faq .accordion__mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 6px;
}

.page-faq .accordion__mark::before,
.page-faq .accordion__mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transition: transform 220ms var(--ease), opacity 220ms var(--ease);
}

.page-faq .accordion__mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-q[aria-expanded="true"] .accordion__mark::after {
  transform: rotate(0deg);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 0 22px;
}

.page-faq .faq-a p {
  margin: 0 0 0.8em;
  max-width: 62ch;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.78;
}

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

.page-faq .faq-steps {
  counter-reset: faqstep;
  margin: 4px 0 14px;
  padding: 0 0 0 18px;
  list-style: none;
  border-left: 2px solid var(--cyan-soft);
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 24px;
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 2.1;
  color: var(--cyan);
}

.page-faq .faq-media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-panel);
}

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

@media (min-width: 980px) {
  .page-faq .faq-media {
    grid-column: 2;
    margin-top: -12px;
  }
}

/* ---------- 客服渠道 ---------- */
.page-faq .faq-contact {
  padding-block: clamp(38px, 5vw, 68px);
  border-top: var(--faq-rule);
}

.page-faq .faq-contact__panel {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding: clamp(22px, 3.4vw, 44px);
}

.page-faq .faq-contact__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-contact__note {
  margin: 10px 0 0;
  max-width: 40ch;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 14px 0;
  border-bottom: var(--faq-rule);
}

.page-faq .faq-contact__row:first-child {
  border-top: var(--faq-rule);
}

.page-faq .faq-contact__key {
  flex: none;
  min-width: 52px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text);
  word-break: break-word;
}

.page-faq .faq-contact__value--addr {
  font-family: var(--font-body);
  font-size: 14.5px;
}

.page-faq .copy-btn {
  flex: none;
  padding: 4px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--coral);
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.6;
  cursor: pointer;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background-color 240ms var(--ease);
}

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

@media (min-width: 900px) {
  .page-faq .faq-contact__panel {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

/* ---------- 底部跳转带 ---------- */
.page-faq .faq-footstrip {
  padding-block: clamp(24px, 3vw, 40px);
  border-top: var(--faq-rule);
  background: linear-gradient(180deg, rgba(63, 240, 216, 0.05), rgba(6, 10, 28, 0) 70%);
}

.page-faq .faq-footstrip__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
}

.page-faq .faq-footstrip__label {
  margin: 0;
  flex: none;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-faq .faq-footstrip__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-footstrip__list a {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 240ms var(--ease);
}

.page-faq .faq-footstrip__list a:hover,
.page-faq .faq-footstrip__list a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  background: var(--glass);
}

@media (max-width: 600px) {
  .page-faq .faq-hero__media {
    max-width: 100%;
  }

  .page-faq .faq-jump__inner {
    padding-block: 9px;
  }

  .page-faq .faq-jump__label {
    display: none;
  }

  .page-faq .faq-contact__row {
    align-items: flex-start;
  }

  .page-faq .faq-footstrip__list a {
    font-size: 13px;
    padding: 7px 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion__mark::before,
  .page-faq .accordion__mark::after {
    transition: none;
  }
}