.page-faq {
  background: var(--paper);
  color: var(--slate);
  --faq-sticky-top: 92px;
}

/* ---------- 首屏分屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  border-bottom: 1px solid var(--line-light);
}

.page-faq .faq-hero__aside {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: clamp(18px, 3vw, 34px);
  background: var(--pit);
  color: var(--paper);
  padding: clamp(22px, 3.4vw, 46px) var(--pad) clamp(28px, 4vw, 54px);
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-hero__aside::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 3px;
  background: var(--signal);
}

.page-faq .faq-hero__aside .breadcrumbs {
  color: var(--paper-60);
  font-size: 13px;
}

.page-faq .faq-hero__aside .breadcrumbs__link {
  color: var(--paper-72);
  text-decoration: none;
  border-bottom: 1px solid var(--line-dark);
  padding-bottom: 2px;
}

.page-faq .faq-hero__aside .breadcrumbs__link:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-faq .faq-hero__aside .breadcrumbs__sep {
  color: var(--line-dark);
  margin: 0 8px;
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-kicker--dark {
  color: var(--signal);
}

.page-faq .faq-kicker__dot {
  width: 7px;
  height: 7px;
  background: currentColor;
  display: inline-block;
}

.page-faq .faq-title {
  margin: clamp(14px, 2.4vw, 22px) 0 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 4.6vw, 52px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-lede {
  margin: 16px 0 0;
  max-width: 40ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--paper-72);
}

.page-faq .faq-hero__cta {
  align-self: flex-start;
}

/* ---------- 三问速答 ---------- */
.page-faq .faq-hero__main {
  background: var(--paper);
}

.page-faq .faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: quick;
}

.page-faq .faq-quick__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 2vw, 24px);
  padding: clamp(18px, 2.6vw, 28px) var(--pad);
  border-bottom: 1px solid var(--line-light);
  transition: background-color 0.2s ease;
}

.page-faq .faq-quick__item:last-child {
  border-bottom: 0;
}

.page-faq .faq-quick__item:hover {
  background: var(--paper-dim);
}

.page-faq .faq-quick__num {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-faq .faq-quick__q {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.1vw, 24px);
  font-weight: 700;
  line-height: 1.16;
  color: var(--pit);
}

.page-faq .faq-quick__a {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--slate);
}

.page-faq .faq-quick__link {
  display: inline-block;
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--pit);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
  padding-bottom: 2px;
}

.page-faq .faq-quick__link:hover {
  color: var(--orange);
}

/* ---------- 筛选路径 ---------- */
.page-faq .faq-path {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 48px);
  background: var(--ink);
  color: var(--paper);
  padding: clamp(32px, 5vw, 68px) max(var(--pad), calc((100vw - var(--w-max)) / 2));
  border-bottom: 1px solid var(--line-dark);
}

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

.page-faq .faq-path__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-faq .faq-path__lede {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-72);
}

.page-faq .path-line {
  display: block;
  width: 100%;
  max-width: 320px;
  height: 12px;
  margin: clamp(20px, 3vw, 30px) 0 clamp(16px, 2.4vw, 22px);
  color: var(--signal);
  opacity: 0.75;
}

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

.page-faq .path-step {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding-bottom: clamp(18px, 2.4vw, 24px);
}

.page-faq .path-step::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 34px;
  bottom: 0;
  width: 1px;
  background: var(--line-dark);
}

.page-faq .path-step:last-child::before {
  display: none;
}

.page-faq .path-step__num {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--signal);
  border-radius: var(--radius-0);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--signal);
}

.page-faq .path-step__body h3 {
  margin: 4px 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .path-step__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--paper-72);
}

.page-faq .faq-path__more {
  margin: clamp(12px, 2vw, 18px) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-60);
}

.page-faq .faq-inline-link {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

.page-faq .faq-inline-link:hover {
  color: var(--orange);
}

.page-faq .path-figure {
  margin: 0;
  border: 1px solid var(--line-dark);
}

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

.page-faq .path-figure figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--line-dark);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--paper-60);
}

/* ---------- 问答主体 + 右侧目录 ---------- */
.page-faq .qa-layout {
  display: grid;
  grid-template-columns: 1fr;
  max-width: var(--w-max);
  margin: 0 auto;
  border-bottom: 1px solid var(--line-light);
}

.page-faq .qa-main {
  min-width: 0;
  padding: clamp(30px, 4.4vw, 62px) var(--pad);
}

.page-faq .qa-index {
  padding: clamp(18px, 3vw, 26px) var(--pad);
  background: var(--paper-dim);
  border-top: 1px solid var(--line-light);
}

.page-faq .qa-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .qa-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-faq .qa-index__link {
  display: block;
  padding: 9px 0 9px 12px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.4;
  color: var(--slate);
  text-decoration: none;
}

.page-faq .qa-index__link:hover {
  color: var(--pit);
  border-left-color: var(--orange);
}

.page-faq .qa-index__link[aria-current="true"] {
  border-left-color: var(--signal);
  color: var(--pit);
  font-weight: 700;
}

/* ---------- 问答分组 ---------- */
.page-faq .qa-group {
  padding-bottom: clamp(26px, 3.6vw, 42px);
  margin-bottom: clamp(26px, 3.6vw, 42px);
  border-bottom: 1px solid var(--line-light);
  scroll-margin-top: var(--faq-sticky-top);
}

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

.page-faq .qa-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-faq .qa-group__no {
  flex: 0 0 auto;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .qa-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.6vw, 28px);
  font-weight: 800;
  line-height: 1.12;
  color: var(--pit);
}

.page-faq .qa-group__note {
  margin: 10px 0 clamp(14px, 2vw, 20px);
  max-width: 48ch;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--slate);
}

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

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

.page-faq .qa-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 0 14px 14px;
  border-left: 3px solid transparent;
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--pit);
  cursor: pointer;
  list-style: none;
  transition: border-left-color 0.18s ease, background-color 0.18s ease;
}

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

.page-faq .qa-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--moss);
}

.page-faq .qa-item > summary:hover {
  background: var(--paper-dim);
}

.page-faq .qa-item[open] > summary {
  border-left-color: var(--signal);
  color: var(--ink);
}

.page-faq .qa-item[open] > summary::after {
  content: "\2013";
  color: var(--orange);
}

.page-faq .qa-answer {
  margin: 0;
  padding: 0 0 18px 17px;
  border-left: 3px solid transparent;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .qa-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.6vw, 28px);
}

.page-faq .qa-media {
  margin: 0;
  border: 1px solid var(--line-light);
}

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

.page-faq .qa-media figcaption {
  padding: 9px 11px;
  border-top: 1px solid var(--line-light);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--slate);
}

/* ---------- 联系与反馈 ---------- */
.page-faq .faq-help {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
  background: var(--pit);
  color: var(--paper);
  padding: clamp(32px, 5vw, 64px) max(var(--pad), calc((100vw - var(--w-max)) / 2));
}

.page-faq .faq-help__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 800;
  line-height: 1.08;
  color: var(--paper);
}

.page-faq .faq-help__lede {
  margin: 14px 0 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-72);
}

.page-faq .faq-help__cta {
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-faq .help-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .help-list__item {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-top: 12px;
  border-top: 1px solid var(--line-dark);
}

.page-faq .help-list__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-60);
}

.page-faq .help-list__val {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .qa-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 210px);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 38%) minmax(0, 62%);
  }

  .page-faq .faq-hero__aside {
    border-bottom: 0;
    border-right: 1px solid var(--line-dark);
    padding-left: max(var(--pad), calc((100vw - var(--w-max)) / 2));
    justify-content: flex-start;
  }

  .page-faq .faq-hero__cta {
    margin-top: auto;
  }

  .page-faq .faq-path {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .qa-layout {
    grid-template-columns: minmax(0, 1fr) 226px;
  }

  .page-faq .qa-index {
    position: sticky;
    top: var(--faq-sticky-top);
    align-self: start;
    max-height: calc(100vh - var(--faq-sticky-top) - 24px);
    overflow-y: auto;
    border-top: 0;
    border-left: 1px solid var(--line-light);
    padding-top: clamp(30px, 4.4vw, 62px);
    background: transparent;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__item,
  .page-faq .qa-item > summary {
    transition: none;
  }
}