.page-faq {
  --faq-pad: 20px;
  --faq-line: var(--line);
  --faq-glow: rgba(201, 162, 77, 0.16);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 14px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero__lead .display-1 {
  margin: 10px 0 16px;
  font-family: var(--narrow);
  font-size: clamp(32px, 8.4vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lead .lede {
  max-width: 46ch;
}

.page-faq .faq-hero__tags {
  margin-top: 22px;
}

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

/* ---------- 时间轴 ---------- */
.page-faq .faq-flow .section-head {
  margin-bottom: 30px;
}

.page-faq .faq-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.page-faq .faq-timeline__step {
  position: relative;
  padding: 18px 18px 18px 20px;
  border: 1px solid var(--faq-line);
  background: var(--charcoal);
  box-shadow: 6px 6px 0 rgba(12, 13, 16, 0.55);
}

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

.page-faq .faq-timeline__node {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-faq .faq-timeline__title {
  margin: 0 0 10px;
  font-family: var(--narrow);
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-timeline__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--body-text);
}

/* ---------- 自查 + 问答 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 40px;
  align-items: start;
}

.page-faq .faq-rail .display-3 {
  margin: 8px 0 20px;
}

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

.page-faq .faq-check__item {
  counter-increment: chk;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-check__item::before {
  content: counter(chk, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold);
  line-height: 1.75;
}

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

.page-faq .faq-check__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .faq-check__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--body-text);
}

.page-faq .faq-rail__figure {
  margin: 22px 0 0;
}

.page-faq .faq-rail__foot {
  margin-top: 22px;
  padding: 16px 16px 18px;
  border-left: 2px solid var(--gold);
  background: rgba(201, 162, 77, 0.06);
}

.page-faq .faq-rail__hint {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-faq .faq-rail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 18px;
}

.page-faq .faq-rail__links a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-rail__links a:hover,
.page-faq .faq-rail__links a:focus-visible {
  color: var(--gold-light);
  border-color: var(--gold);
}

.page-faq .faq-main .display-3 {
  margin: 8px 0 16px;
}

.page-faq .faq-filter {
  margin-bottom: 20px;
}

.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-q {
  border: 1px solid var(--faq-line);
  background: var(--ink-deep);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-q[hidden] {
  display: none;
}

.page-faq .faq-q[open] {
  border-color: rgba(53, 210, 194, 0.45);
  box-shadow: inset 2px 0 0 0 var(--cyan);
}

.page-faq .faq-q:hover {
  border-color: rgba(201, 162, 77, 0.4);
}

.page-faq .faq-q__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--paper);
}

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

.page-faq .faq-q__head::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-q[open] .faq-q__head::after {
  content: "−";
}

.page-faq .faq-q__num {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q__body {
  padding: 0 16px 16px 16px;
  color: var(--body-text);
  font-size: 14.5px;
  line-height: 1.9;
}

.page-faq .faq-q__body p {
  margin: 0;
  max-width: 64ch;
}

/* ---------- 文档检索 ---------- */
.page-faq .faq-docs__grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-docs .display-3 {
  margin: 0 0 18px;
}

.page-faq .faq-range__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-range__item {
  padding: 14px 16px;
  border: 1px solid var(--faq-line);
  border-left: 2px solid var(--gold);
  background: var(--charcoal);
}

.page-faq .faq-range__item--fresh {
  border-left-color: var(--cinnabar);
}

.page-faq .faq-range__item p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--body-text);
}

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

.page-faq .faq-columns__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--faq-line);
  background: linear-gradient(90deg, rgba(22, 24, 30, 0.9), rgba(12, 13, 16, 0.9));
  font-size: 15px;
  color: var(--paper);
}

.page-faq .faq-columns__no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-columns__note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--body-text);
  max-width: 62ch;
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-assist__card {
  padding: 26px 20px;
}

.page-faq .faq-assist__intro {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--body-text);
  max-width: 52ch;
}

.page-faq .faq-assist__grid {
  display: grid;
  gap: 28px;
  margin-top: 26px;
}

.page-faq .faq-assist__subtitle {
  margin: 0 0 14px;
  font-family: var(--narrow);
  font-size: 18px;
  letter-spacing: 0;
  color: var(--paper);
}

.page-faq .faq-assist__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-assist__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--body-text);
}

.page-faq .faq-assist__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
}

.page-faq .faq-assist__tip {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-assist__contact {
  padding: 20px 18px;
  border: 1px solid rgba(201, 162, 77, 0.35);
  background: rgba(201, 162, 77, 0.05);
}

.page-faq .faq-assist__key {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-faq .faq-assist__mail {
  margin: 10px 0 14px;
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-assist__note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--body-text);
}

.page-faq .faq-assist__note a {
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 77, 0.5);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 40px;
  }

  .page-faq .faq-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
  }

  .page-faq .faq-timeline {
    position: relative;
    padding-top: 44px;
  }

  .page-faq .faq-timeline::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 12px;
    height: 1px;
    background: linear-gradient(90deg, var(--gold) 0%, rgba(201, 162, 77, 0.5) 55%, rgba(201, 162, 77, 0.08) 100%);
  }

  .page-faq .faq-timeline__tick {
    display: block;
    position: absolute;
    top: -36px;
    left: 0;
    width: 11px;
    height: 11px;
    border: 1px solid var(--gold);
    border-radius: 50%;
    background: var(--ink);
    box-shadow: 0 0 0 4px var(--faq-glow);
  }

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

  .page-faq .faq-assist__card {
    padding: 34px 30px;
  }

  .page-faq .faq-assist__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-q__head {
    font-size: 16px;
    padding: 16px 20px;
  }

  .page-faq .faq-q__body {
    padding: 0 20px 18px 60px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 48px;
  }

  .page-faq .faq-main .filter-bar {
    margin-bottom: 24px;
  }

  .page-faq .faq-hero__grid {
    gap: 56px;
  }

  .page-faq .faq-docs__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 52px;
  }

  .page-faq .faq-assist__card {
    padding: 44px;
  }
}

@media (min-width: 1000px) and (min-height: 880px) {
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-faq .faq-list {
    max-height: 74vh;
    overflow-y: auto;
    padding-right: 8px;
    scrollbar-width: thin;
    scrollbar-color: var(--line) transparent;
  }

  .page-faq .faq-list::-webkit-scrollbar {
    width: 6px;
  }

  .page-faq .faq-list::-webkit-scrollbar-thumb {
    background: var(--line);
  }
}