.page-faq {
  --faq-sticky-top: 88px;
  --faq-body: var(--font-body);
  background: var(--paper);
}

.page-faq .crumb {
  margin: 20px 0 16px;
}

/* ── 首屏 ───────────────────────────── */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--green);
  color: var(--white);
  padding: clamp(30px, 5vw, 58px) 0 clamp(34px, 6vw, 66px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto -12% -46% 52%;
  height: 240px;
  background: repeating-linear-gradient(
    115deg,
    rgba(242, 106, 27, 0.16) 0 2px,
    transparent 2px 15px
  );
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 42px);
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 12px;
  color: var(--signal);
  letter-spacing: 0.18em;
}

.page-faq .faq-hero .h-display {
  margin: 0 0 16px;
  color: var(--white);
  max-width: 20em;
}

.page-faq .faq-hero .lead {
  margin: 0;
  max-width: 36em;
  color: rgba(251, 252, 248, 0.84);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-light);
}

.page-faq .faq-hero-stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero-stats .num-lg {
  color: var(--signal);
  font-size: 24px;
  line-height: 1.1;
}

.page-faq .faq-stat-label {
  font-size: 13px;
  color: rgba(251, 252, 248, 0.72);
}

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

/* ── 主体两栏 ───────────────────────── */
.page-faq .faq-main {
  padding: clamp(34px, 6vw, 64px) 0 8px;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

/* ── 左侧分组索引 ───────────────────── */
.page-faq .faq-rail {
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 16px;
}

.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-rail-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
}

.page-faq .faq-rail-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid transparent;
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  border-color: var(--signal);
  color: var(--green);
  background: var(--white);
}

.page-faq .faq-rail-list .num {
  font-size: 12px;
  color: var(--muted);
}

.page-faq .faq-rail-count {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--muted);
}

/* ── 分组 ───────────────────────────── */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  padding: clamp(26px, 4vw, 42px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-group:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-group-head {
  margin-bottom: 18px;
}

.page-faq .faq-group-no {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--signal);
}

.page-faq .faq-group-head .h-section {
  margin: 0 0 10px;
}

.page-faq .faq-group-lead {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-tagline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
}

/* ── 问答条目 ───────────────────────── */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(242, 106, 27, 0.42);
  border-left-color: var(--signal);
  background: var(--white);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

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

.page-faq .faq-item summary::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  margin-left: auto;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(225deg);
  border-color: var(--signal);
}

.page-faq .faq-item summary:hover {
  color: var(--green);
}

.page-faq .faq-answer {
  padding: 0 16px 18px 16px;
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-faq .faq-answer a {
  color: var(--corner-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-answer a:hover {
  color: var(--signal);
}

/* ── 组内配图 ───────────────────────── */
.page-faq .faq-figure {
  margin: 22px 0 0;
}

.page-faq .faq-figure .media {
  border: 1px solid var(--line);
  max-width: 420px;
}

.page-faq .faq-figure .media-caption {
  margin-top: 10px;
  max-width: 420px;
}

/* ── 反馈场景切换 ───────────────────── */
.page-faq .faq-router {
  margin-bottom: 20px;
  padding: 18px;
  background: var(--paper-2);
  border: 1px solid var(--line);
}

.page-faq .faq-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-tab {
  padding: 9px 14px;
  font-size: 14px;
  line-height: 1.4;
  border: 1px solid var(--line-strong);
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
  user-select: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

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

.page-faq #faq-scene-data:checked ~ .faq-tabs label[for="faq-scene-data"],
.page-faq #faq-scene-profile:checked ~ .faq-tabs label[for="faq-scene-profile"],
.page-faq #faq-scene-filter:checked ~ .faq-tabs label[for="faq-scene-filter"] {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
}

.page-faq .faq-radio:focus-visible ~ .faq-tabs {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

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

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

.page-faq .faq-panel p {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq #faq-scene-data:checked ~ .faq-panels .faq-panel[data-scene="data"],
.page-faq #faq-scene-profile:checked ~ .faq-panels .faq-panel[data-scene="profile"],
.page-faq #faq-scene-filter:checked ~ .faq-panels .faq-panel[data-scene="filter"] {
  display: block;
}

/* ── 末尾行动面板 ───────────────────── */
.page-faq .faq-cta-outer {
  padding: clamp(30px, 5vw, 58px) 0 clamp(46px, 7vw, 84px);
}

.page-faq .faq-cta {
  display: grid;
  gap: 18px;
  padding: clamp(22px, 4vw, 38px);
}

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

.page-faq .faq-cta-copy .h-sub {
  margin: 0;
  color: var(--white);
}

.page-faq .faq-cta-copy p {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(251, 252, 248, 0.82);
}

.page-faq .faq-cta-copy .faq-cta-line {
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .faq-cta .btn {
  justify-self: start;
}

/* ── 断点 ───────────────────────────── */
@media (max-width: 959px) {
  .page-faq .faq-rail-count {
    display: none;
  }

  .page-faq .faq-rail-list a {
    border-color: var(--line);
    background: var(--white);
  }
}

@media (max-width: 520px) {
  .page-faq .faq-item summary {
    gap: 10px;
    padding: 14px 13px;
    font-size: 15px;
  }

  .page-faq .faq-answer {
    padding: 0 13px 16px 13px;
  }

  .page-faq .faq-router {
    padding: 14px;
  }

  .page-faq .faq-hero-actions .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 42fr 58fr;
    align-items: center;
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(200px, 240px) minmax(0, 1fr);
    gap: clamp(34px, 5vw, 62px);
    align-items: start;
  }

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

  .page-faq .faq-rail-list {
    display: block;
    overflow: visible;
  }

  .page-faq .faq-rail-list li + li {
    margin-top: 4px;
  }

  .page-faq .faq-rail-list a {
    border-color: transparent;
  }

  .page-faq .faq-rail-count {
    margin-left: auto;
  }
}

@media (min-width: 840px) {
  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}