.page-faq {
  --faq-gap: clamp(22px, 4vw, 44px);
  --faq-line: repeating-linear-gradient(90deg, var(--steel) 0 8px, transparent 8px 16px);
  padding-bottom: clamp(48px, 9vw, 104px);
}

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

/* 面包屑 */
.page-faq .breadcrumb {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  color: var(--steel);
}

.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--ice);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(20px, 4vw, 38px) 0 clamp(26px, 5vw, 50px);
  border-bottom: 1px dashed var(--steel);
}

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

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

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  max-width: 900px;
  font-size: clamp(30px, 5.6vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--ice);
}

.page-faq .faq-hero h1::after {
  content: "";
  display: block;
  width: 88px;
  height: 4px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--cyan) 0 62%, var(--orange) 62% 100%);
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 44em;
  color: var(--mist);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
}

.page-faq .faq-hero__stats {
  display: grid;
  align-content: start;
  padding: clamp(14px, 2.2vw, 22px);
  background: var(--night-blue);
  border: 1px solid var(--steel);
  clip-path: var(--cut-path);
  min-width: 0;
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--steel);
}

.page-faq .faq-stat:last-child {
  border-bottom: 0;
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--amber);
}

.page-faq .faq-stat__label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
  text-align: right;
}

/* 主体分栏 */
.page-faq .faq-body {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  padding-top: clamp(26px, 5vw, 54px);
}

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

/* 左侧问题索引 */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__head {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  border-left: 2px solid var(--steel);
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--ice);
  border-left-color: var(--cyan);
  background: var(--teal-deep);
}

.page-faq .faq-index__list a[aria-current="true"] {
  color: var(--ice);
  border-left-color: var(--cyan);
  background: var(--teal-deep);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.page-faq .faq-index__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--steel);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

/* 分组 */
.page-faq .faq-group {
  scroll-margin-top: 100px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(30px, 5vw, 54px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.page-faq .faq-group__no {
  flex: none;
  padding: 3px 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
  border: 1px solid var(--steel);
  clip-path: var(--cut-path-sm);
}

.page-faq .faq-group__head h2 {
  min-width: 0;
  margin: 0;
  font-size: clamp(19px, 2.4vw, 28px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-faq .faq-group__head::after {
  content: "";
  flex: 1 1 40px;
  height: 1px;
  min-width: 24px;
  background: var(--faq-line);
}

.page-faq .faq-group__lede {
  margin: 0 0 16px;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* 问答项 */
.page-faq .faq-item {
  background: var(--night-blue);
  border: 1px solid var(--steel);
  border-left: 3px solid var(--steel);
  clip-path: var(--cut-path);
  margin-bottom: 10px;
  transition: border-left-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-item:hover {
  border-left-color: var(--cyan);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  background: linear-gradient(180deg, var(--teal-deep) 0%, var(--night-blue) 46%);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: clamp(13px, 1.8vw, 18px) clamp(15px, 2vw, 22px);
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.4vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ice);
  transition: color 0.18s ease;
}

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

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

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

.page-faq .faq-item__q::after {
  content: "+";
  flex: none;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--cyan);
  border: 1px solid var(--steel);
  clip-path: var(--cut-path-sm);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
  color: var(--ice);
  border-color: var(--cyan);
}

.page-faq .faq-item__a {
  padding: 14px clamp(15px, 2vw, 22px) clamp(16px, 2.2vw, 22px);
  border-top: 1px dashed var(--steel);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ice);
}

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

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--steel);
  transition: border-color 0.18s ease;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-points {
  display: grid;
  gap: 7px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

.page-faq .kw {
  color: var(--ice);
  border-bottom: 1px dashed var(--amber);
}

/* 配图 */
.page-faq .faq-figure {
  margin: 18px 0 0;
}

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

.page-faq .faq-figure .media-frame__caption {
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

/* 结尾沟通区 */
.page-faq .faq-group--cta {
  margin-top: clamp(34px, 5vw, 56px);
}

.page-faq .faq-cta {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  padding: clamp(20px, 3.4vw, 36px);
  background: linear-gradient(135deg, var(--night-blue) 0%, var(--teal-deep) 100%);
  border: 1px solid var(--steel);
  clip-path: var(--cut-path);
}

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

.page-faq .faq-cta h2 {
  margin: 12px 0 10px;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-faq .faq-cta p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-cta .faq-points li {
  color: var(--ice);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

/* 平板以上：左右分栏 */
@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: 26px minmax(0, 7fr) minmax(0, 3fr);
    align-items: start;
  }

  .page-faq .faq-hero__annot {
    display: block;
    margin: 4px 0 0;
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.34em;
    color: var(--steel);
    border-left: 1px solid var(--steel);
    padding-left: 8px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: center;
  }

  .page-faq .faq-cta__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .faq-cta__actions .btn {
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-index__list a,
  .page-faq .faq-item__q {
    transition: none;
  }
}