.page-faq {
  --faq-rail: 232px;
  display: block;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: 28px 0 24px;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 12px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-cond);
  font-size: 30px;
  line-height: 1.18;
  letter-spacing: 0.015em;
  color: var(--hi);
  max-width: 22ch;
}

.page-faq .faq-hero__lede {
  margin: 0 0 24px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 0 0 22px;
  padding: 16px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.page-faq .faq-fact__k {
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1.2;
  color: var(--hi);
  letter-spacing: 0.01em;
}

.page-faq .faq-fact__l {
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.page-faq .faq-flow {
  display: block;
  width: 100%;
  height: 16px;
  overflow: visible;
}

.page-faq .faq-flow line {
  stroke: var(--line);
  stroke-width: 1;
}

.page-faq .faq-flow circle {
  fill: var(--line);
}

.page-faq .faq-flow circle:first-child {
  fill: var(--orange);
}

/* ---------- 布局骨架 ---------- */

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-tabs {
  position: sticky;
  top: 0;
  z-index: 8;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin: 0 -16px;
  padding: 10px 16px;
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}

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

.page-faq .faq-tabs .tab {
  flex: 0 0 auto;
  padding: 7px 13px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: 13px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--body);
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-faq .faq-tabs .tab:hover {
  color: var(--hi);
  border-color: var(--green);
}

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

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

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  padding: 0 0 44px;
  scroll-margin-top: 68px;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 12px;
  align-items: baseline;
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin-bottom: 20px;
}

.page-faq .faq-group__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.1em;
  color: var(--green);
}

.page-faq .faq-group__head .section-title {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-cond);
  font-size: 21px;
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--hi);
}

.page-faq .faq-group__head .section-note {
  grid-column: 2;
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mute);
}

/* ---------- 问答组 ---------- */

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

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

.page-faq .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 14px 15px 16px;
  background: transparent;
  border: 0;
  border-left: 2px solid transparent;
  text-align: left;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--hi);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.page-faq .accordion__trigger:hover {
  background: var(--raise);
}

.page-faq .accordion__trigger[aria-expanded="true"] {
  background: var(--raise);
  border-left-color: var(--green);
}

.page-faq .accordion__mark {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 1.5px solid var(--mute);
  border-bottom: 1.5px solid var(--mute);
  transform: rotate(45deg);
  transition: transform 200ms ease, border-color 200ms ease;
}

.page-faq .accordion__trigger:hover .accordion__mark {
  border-color: var(--green);
}

.page-faq .accordion__trigger[aria-expanded="true"] .accordion__mark {
  transform: rotate(225deg);
  border-color: var(--green);
}

.page-faq .accordion__inner {
  padding: 0 18px 18px 18px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--body);
}

.page-faq .accordion__inner p {
  margin: 0;
}

.page-faq .accordion__inner a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms ease;
}

.page-faq .accordion__inner a:hover {
  border-bottom-color: var(--blue);
}

/* ---------- 步骤块 ---------- */

.page-faq .faq-steps {
  margin: 22px 0 0;
  padding: 16px 16px 14px;
  background: var(--panel);
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-faq .faq-steps__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-faq .faq-steps ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  display: flex;
  gap: 10px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--hi);
}

.page-faq .faq-steps__n {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--green);
}

/* ---------- 图片 ---------- */

.page-faq .faq-group__media,
.page-faq .faq-wide-media {
  margin: 24px 0 0;
}

.page-faq .faq-group__media img,
.page-faq .faq-wide-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-group__media figcaption,
.page-faq .faq-wide-media figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mute);
}

.page-faq .faq-wide-media + .faq-group__list {
  margin-top: 24px;
}

/* ---------- 纠错模板 ---------- */

.page-faq .faq-template {
  margin-top: 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-template__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 14px;
  background: var(--raise);
  border-bottom: 1px solid var(--line);
}

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

.page-faq .faq-template__body {
  margin: 0;
  padding: 16px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.85;
  color: var(--body);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-faq .faq-template__foot {
  margin: 0;
  padding: 0 14px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

.page-faq .faq-template__foot a {
  color: var(--blue);
  text-decoration: none;
}

.page-faq .faq-template__foot a:hover {
  text-decoration: underline;
}

/* ---------- 收尾行动块 ---------- */

.page-faq .faq-cta {
  margin-top: 24px;
  padding: 22px 20px;
  background: linear-gradient(150deg, var(--raise) 0%, var(--panel) 78%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-cta__lead {
  margin: 0 0 16px;
  max-width: 40ch;
  font-family: var(--font-cond);
  font-size: 18px;
  line-height: 1.45;
  color: var(--hi);
}

.page-faq .faq-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-cta__meta {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 桌面端 ---------- */

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 44px 0 30px;
  }

  .page-faq .faq-hero h1 {
    font-size: 42px;
    max-width: 24ch;
  }

  .page-faq .faq-hero__lede {
    font-size: 17px;
  }

  .page-faq .faq-fact__k {
    font-size: 22px;
  }

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

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    column-gap: 48px;
    align-items: start;
    padding-top: 8px;
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: 28px;
    align-self: start;
  }

  .page-faq .faq-rail .toc__link {
    display: block;
    padding: 9px 12px;
    border-left: 2px solid var(--line);
    font-size: 14px;
    line-height: 1.5;
    color: var(--body);
    text-decoration: none;
    transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
  }

  .page-faq .faq-rail .toc__link + .toc__link {
    margin-top: 2px;
  }

  .page-faq .faq-rail .toc__link:hover,
  .page-faq .faq-rail .toc__link.is-active {
    color: var(--hi);
    border-left-color: var(--green);
    background: var(--panel);
  }

  .page-faq .faq-group__head .section-title {
    font-size: 26px;
  }

  .page-faq .faq-group {
    padding-bottom: 56px;
    scroll-margin-top: 24px;
  }

  .page-faq .accordion__trigger {
    padding: 17px 18px 17px 20px;
    font-size: 16px;
  }

  .page-faq .accordion__inner {
    padding: 0 22px 20px 22px;
  }

  .page-faq .faq-group--with-media {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 248px;
    column-gap: 36px;
    align-items: start;
  }

  .page-faq .faq-group--with-media .faq-group__head {
    grid-column: 1 / -1;
  }

  .page-faq .faq-group--with-media .faq-group__media {
    margin-top: 0;
    position: sticky;
    top: 28px;
  }

  .page-faq .faq-steps {
    grid-column: 1;
  }

  .page-faq .faq-wide-media img {
    max-height: 340px;
  }

  .page-faq .faq-cta {
    padding: 26px 26px 24px;
  }

  .page-faq .faq-cta__lead {
    font-size: 20px;
  }
}

@media (min-width: 1268px) {
  .page-faq .faq-layout {
    column-gap: 60px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion__trigger,
  .page-faq .accordion__mark,
  .page-faq .faq-tabs .tab,
  .page-faq .faq-rail .toc__link {
    transition: none;
  }
}