.page-faq {
  padding-bottom: clamp(24px, 3vw, 40px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(24px, 4vw, 46px) clamp(26px, 4.2vw, 54px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(15, 91, 216, .055) 0%, rgba(15, 91, 216, 0) 64%);
}

.page-faq .faq-hero__title {
  max-width: 20ch;
  margin: 10px 0 14px;
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--steel-700);
}

.page-faq .faq-hero__band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(22px, 3.4vw, 38px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  overflow: hidden;
}

.page-faq .faq-hero__cell {
  padding: 16px 14px 18px;
  background: var(--white);
}

.page-faq .faq-hero__num {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-faq .faq-hero__num span {
  margin-left: 6px;
  font-size: .36em;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--steel-500);
}

.page-faq .faq-hero__cell--hot .faq-hero__num {
  color: var(--hot);
}

.page-faq .faq-hero__cap {
  margin: 8px 0 0;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--steel-500);
}

@media (min-width: 720px) {
  .page-faq .faq-hero__band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .faq-hero__cell {
    padding: 20px 18px 22px;
  }
}

/* ---------- 主体布局 ---------- */

.page-faq .faq-main-section {
  padding-block: clamp(30px, 5vw, 62px) clamp(36px, 5vw, 72px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--steel-500);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0 0 14px;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  background: var(--white);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .16s ease, color .16s ease, background-color .16s ease;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: var(--blue);
  color: var(--blue);
}

.page-faq .faq-rail__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel-500);
}

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

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(32px, 4.5vw, 68px);
  }
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-space) + 20px);
    align-self: start;
  }
  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    margin-bottom: 18px;
    padding-bottom: 0;
  }
  .page-faq .faq-rail__link {
    padding: 11px 0 11px 14px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    background: transparent;
    white-space: normal;
    font-size: 14.5px;
  }
  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--hot);
    color: var(--hot);
  }
  .page-faq .faq-rail__cta {
    display: inline-flex;
    width: 100%;
    justify-content: center;
  }
}

/* ---------- 分组 ---------- */

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 62px);
  padding-top: clamp(26px, 4vw, 46px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 2vw, 20px);
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-faq .faq-group__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--steel-500);
  opacity: .38;
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
}

.page-faq .faq-group__desc {
  max-width: 56ch;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--steel-500);
}

/* ---------- 问答折叠 ---------- */

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

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  background: var(--white);
  transition: border-color .18s ease, box-shadow .18s ease;
}

.page-faq .faq-item:hover {
  border-color: var(--line-strong);
}

.page-faq .faq-item:has(.faq-q[aria-expanded="true"]) {
  border-color: var(--blue);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 15px 16px;
  border: 0;
  border-radius: var(--r-2);
  background: transparent;
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: color .16s ease;
}

.page-faq .faq-q:hover {
  color: var(--blue);
}

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

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

.page-faq .faq-a {
  margin: 0 14px 14px;
  padding: 10px 0 6px 14px;
  border-left: 3px solid var(--steel-700);
}

.page-faq .faq-a--hot {
  border-left-color: var(--hot);
}

.page-faq .faq-a--blue {
  border-left-color: var(--blue);
}

.page-faq .faq-a--steel {
  border-left-color: var(--cyan);
}

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

.page-faq .faq-a p {
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--steel-700);
}

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

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

@media (min-width: 720px) {
  .page-faq .faq-q {
    padding: 17px 20px;
    font-size: 16px;
  }
  .page-faq .faq-a {
    margin: 0 20px 18px;
    padding: 12px 0 6px 16px;
  }
  .page-faq .faq-a p {
    font-size: 15px;
  }
}

.page-faq .num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.12em;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .num--hot {
  color: var(--hot);
}

.page-faq .num--cyan {
  color: var(--cyan);
}

.page-faq .faq-scale {
  height: 12px;
  margin-top: 12px;
  border-left: 1px solid var(--line-strong);
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background-image: repeating-linear-gradient(
    90deg,
    var(--line-strong) 0,
    var(--line-strong) 1px,
    transparent 1px,
    transparent 12.5%
  );
}

/* ---------- 图块 ---------- */

.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 28px);
}

.page-faq .img-frame {
  margin: 0;
}

.page-faq .img-frame__inner {
  overflow: hidden;
  border-radius: var(--r-2);
}

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

.page-faq .faq-figure {
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: start;
    gap: clamp(20px, 3vw, 36px);
  }
}

/* ---------- 工单节点轨 ---------- */

.page-faq .faq-track {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  border-radius: var(--r-2);
  overflow: hidden;
}

.page-faq .faq-track__item {
  position: relative;
  padding: 14px 12px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.page-faq .faq-track__item--last::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--hot);
}

.page-faq .faq-track__step {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--blue);
}

.page-faq .faq-track__item--last .faq-track__step {
  color: var(--hot);
}

.page-faq .faq-track__name {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-track__note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--steel-500);
}

@media (min-width: 720px) {
  .page-faq .faq-track {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .page-faq .faq-track__item {
    padding: 16px 14px 18px;
  }
}

/* ---------- 收尾 ---------- */

.page-faq .faq-outro {
  padding-block: clamp(30px, 4.6vw, 58px) clamp(88px, 9vw, 108px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-outro__inner {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
}

.page-faq .faq-outro__title {
  margin: 0 0 8px;
}

.page-faq .faq-outro__text p {
  max-width: 54ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--steel-500);
}

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

@media (min-width: 860px) {
  .page-faq .faq-outro__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

/* ---------- 常驻报修入口 ---------- */

.page-faq .faq-float {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  padding: 11px 16px;
  border-radius: 999px;
  background: var(--hot);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  text-decoration: none;
  box-shadow: var(--shadow-2);
  transition: background-color .16s ease, transform .16s ease;
}

.page-faq .faq-float:hover {
  background: var(--hot-deep);
  transform: translateY(-2px);
}

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

@media (min-width: 1024px) {
  .page-faq .faq-float {
    right: 28px;
    bottom: 28px;
    padding: 13px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-q,
  .page-faq .faq-rail__link,
  .page-faq .faq-float {
    transition: none;
  }
  .page-faq .faq-float:hover {
    transform: none;
  }
}