.page-faq {
  --faq-line: rgba(11, 31, 58, 0.12);
  --faq-soft: rgba(11, 31, 58, 0.05);
  --faq-tone: var(--moss);
  padding-top: 18px;
  padding-bottom: 116px;
  background: var(--paper);
  color: var(--graphite);
}

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

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  margin-bottom: 26px;
}

.page-faq .faq-hero__kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--faq-soft);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.2vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 22ch;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0 0 30px;
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink);
  border-left: 5px solid var(--signal);
}

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

/* ---------- 筛选条 ---------- */

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 14px 0;
  margin-bottom: 26px;
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-filter__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

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

.page-faq .filter {
  padding: 7px 14px;
  border: 1px solid var(--rock);
  border-radius: 999px;
  background: var(--white);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  line-height: 1.4;
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease, background-color 0.16s ease;
}

.page-faq .filter:hover {
  border-color: var(--signal);
  color: var(--graphite);
}

.page-faq .filter[aria-pressed="true"] {
  border-color: var(--signal);
  background: rgba(255, 106, 0, 0.09);
  color: var(--ink);
}

.page-faq .filter:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  margin-bottom: 22px;
  background: var(--white);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

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

.page-faq .faq-group--entry { --faq-tone: var(--moss); }
.page-faq .faq-group--changes { --faq-tone: var(--teal); }
.page-faq .faq-group--mobile { --faq-tone: var(--magenta); }
.page-faq .faq-group--contact { --faq-tone: var(--clay); }
.page-faq .faq-group--coop { --faq-tone: var(--moss); }
.page-faq .faq-group--history { --faq-tone: var(--teal); }

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: 54px 1fr;
  align-items: stretch;
  background: var(--faq-tone);
}

.page-faq .faq-group__no {
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.2);
  color: rgba(255, 255, 255, 0.94);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-faq .faq-group__name {
  display: flex;
  align-items: center;
  min-height: 36px;
  margin: 0;
  padding: 10px 18px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-faq .faq-group__body {
  padding: 6px 18px 12px;
}

/* ---------- 折叠问答 ---------- */

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

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

.page-faq .faq-item__q {
  position: relative;
  display: block;
  padding: 16px 42px 16px 24px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition: color 0.16s ease;
}

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

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 25px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--faq-tone);
}

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--signal);
  transition: transform 0.16s ease;
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
}

.page-faq .faq-item__q:hover {
  color: var(--clay);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-faq .faq-item__a {
  padding: 0 22px 18px 24px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
  max-width: 68ch;
}

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

.page-faq .faq-item__a a {
  color: var(--clay);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 组内配图 ---------- */

.page-faq .faq-figure {
  margin: 18px 0 6px;
  border-radius: var(--radius-s);
  overflow: hidden;
  background: var(--paper);
}

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

.page-faq .faq-figure__cap {
  padding: 10px 14px;
  background: var(--faq-soft);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  line-height: 1.6;
}

/* ---------- 联系入口浮层 ---------- */

.page-faq .faq-dock {
  position: fixed;
  left: 18px;
  right: 18px;
  bottom: 12px;
  z-index: 45;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 12px 16px;
  border-radius: var(--radius-m);
  border-top: 3px solid var(--signal);
  background: var(--ink);
  color: var(--white);
  box-shadow: 0 16px 34px rgba(11, 31, 58, 0.3);
}

.page-faq .faq-dock__title {
  margin: 0;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--yellow);
}

.page-faq .faq-dock__text {
  margin: 0;
  flex: 1 1 200px;
  min-width: 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.82);
}

.page-faq .faq-dock__cta {
  flex: 0 0 auto;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--signal);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.16s ease;
}

.page-faq .faq-dock__cta:hover {
  background: var(--signal-dark);
}

.page-faq .faq-dock__cta:focus-visible {
  outline: 2px solid var(--yellow);
  outline-offset: 2px;
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 720px) {
  .page-faq {
    padding-top: 30px;
    padding-bottom: 120px;
  }

  .page-faq .faq-hero {
    margin-bottom: 32px;
  }

  .page-faq .faq-hero__figure {
    margin-bottom: 36px;
  }

  .page-faq .faq-filter {
    padding: 16px 0;
    margin-bottom: 32px;
  }

  .page-faq .faq-group {
    margin-bottom: 26px;
  }

  .page-faq .faq-group__head {
    grid-template-columns: 62px 1fr;
  }

  .page-faq .faq-group__name {
    font-size: 17px;
    padding: 10px 22px;
  }

  .page-faq .faq-group__body {
    padding: 8px 24px 16px;
  }

  .page-faq .faq-item__q {
    font-size: 17px;
    padding: 18px 48px 18px 26px;
  }

  .page-faq .faq-item__q::before {
    top: 27px;
  }

  .page-faq .faq-item__a {
    padding: 0 40px 20px 26px;
  }

  .page-faq .faq-dock {
    left: auto;
    right: 22px;
    bottom: 22px;
    width: 296px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 16px 18px;
    border-top: 0;
    border-left: 4px solid var(--signal);
  }

  .page-faq .faq-dock__text {
    flex: 0 1 auto;
  }

  .page-faq .faq-dock__cta {
    width: 100%;
    text-align: center;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-hero__title {
    max-width: 20ch;
  }
}

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