.page-faq {
  --faq-gap: clamp(20px, 4vw, 48px);
  background: var(--white);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 顶部与首屏 ---------- */

.page-faq .faq-top {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 20px var(--gut) 0;
}

.page-faq .faq-hero {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(20px, 4vw, 44px) var(--gut) clamp(30px, 5vw, 60px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  padding: clamp(20px, 4vw, 52px);
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(127, 196, 242, 0.2), rgba(255, 255, 255, 0) 54%),
    linear-gradient(180deg, var(--white), var(--snow));
  box-shadow: var(--shadow-s);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(28px, 5.2vw, 56px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  max-width: 20ch;
  color: var(--navy);
}

.page-faq .faq-hero__lede {
  margin: 0 0 26px;
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--gray);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  padding-top: 12px;
}

.page-faq .faq-hero__figure::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--mist) 0 1px, transparent 1px 14px);
  opacity: 0.9;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--snow);
}

.page-faq .faq-hero__figure figcaption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--gray);
}

/* ---------- 问题索引 ---------- */

.page-faq .faq-index {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gut) clamp(28px, 4vw, 48px);
}

.page-faq .faq-index-info {
  display: none;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-faq .faq-index-item {
  background: var(--white);
}

.page-faq .faq-index-link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  text-decoration: none;
  color: var(--ink);
  transition: box-shadow 0.18s ease, color 0.18s ease;
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  outline: none;
  color: var(--orange);
  box-shadow: inset 0 0 0 2px var(--orange);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-index-link:hover .faq-index-num,
.page-faq .faq-index-link:focus-visible .faq-index-num {
  color: var(--orange);
}

.page-faq .faq-index-label {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .faq-index-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray);
  white-space: nowrap;
}

/* ---------- 过滤条 ---------- */

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 20px;
}

.page-faq .filter-input {
  flex: 1 1 260px;
  min-width: 0;
  padding: 11px 14px;
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-s);
}

.page-faq .filter-input:focus {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--blue);
}

.page-faq .filter-input::placeholder {
  color: var(--gray);
}

.page-faq .filter-count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray);
  white-space: nowrap;
}

.page-faq .filter-count [data-filter-count] {
  color: var(--blue);
  font-variant-numeric: tabular-nums;
}

/* ---------- 问答组 ---------- */

.page-faq .faq-body {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gut) clamp(40px, 6vw, 72px);
}

.page-faq .faq-group {
  border-top: 1px solid var(--line);
  padding-block: clamp(28px, 4vw, 48px);
  scroll-margin-top: 96px;
}

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

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

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

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

.page-faq .faq-q {
  margin: 0;
}

.page-faq .faq-q__btn {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 14px;
  width: 100%;
  padding: 20px 4px;
  border: 0;
  background: transparent;
  font: inherit;
  text-align: left;
  color: var(--ink);
  cursor: pointer;
  transition: box-shadow 0.18s ease, color 0.18s ease;
}

.page-faq .faq-q__btn:hover,
.page-faq .faq-q__btn:focus-visible {
  outline: none;
  color: var(--orange);
  box-shadow: inset 3px 0 0 0 var(--orange);
}

.page-faq .faq-q__num {
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-q__btn:hover .faq-q__num,
.page-faq .faq-q__btn:focus-visible .faq-q__num {
  color: var(--orange);
}

.page-faq .faq-q__text {
  font-size: clamp(16px, 1.7vw, 19px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.page-faq .faq-q__mark {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 5px;
  flex: none;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  background: var(--orange);
}

.page-faq .faq-q__mark::before {
  width: 16px;
  height: 2px;
}

.page-faq .faq-q__mark::after {
  width: 2px;
  height: 16px;
  transition: transform 0.2s ease;
}

.page-faq .faq-q__btn[aria-expanded="true"] .faq-q__mark::after {
  transform: scaleY(0);
}

/* ---------- 答案面板 ---------- */

.page-faq .faq-a {
  display: block;
  margin: 0 0 0 4px;
  padding: 0 4px 24px 20px;
  border-left: 1px solid var(--mist);
}

.page-faq .faq-a[hidden],
.page-faq .faq-a[data-open="false"] {
  display: none;
}

.page-faq .faq-a .disclosure-body > p {
  margin: 0 0 12px;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--gray);
}

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

.page-faq .faq-a a.link-more {
  color: var(--blue);
}

.page-faq .faq-a a.link-more:hover,
.page-faq .faq-a a.link-more:focus-visible {
  color: var(--orange);
}

.page-faq .cat-ref {
  display: inline-block;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--navy-mid);
  background: var(--snow);
  border: 1px solid var(--line);
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
}

/* ---------- 小屏与旧版本：旁注区 ---------- */

.page-faq .faq-side {
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-side__figure {
  margin: 0;
  position: relative;
  padding-top: 12px;
}

.page-faq .faq-side__figure::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--orange-lt) 0 1px, transparent 1px 14px);
  opacity: 0.8;
}

.page-faq .faq-side__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--snow);
}

.page-faq .faq-side__figure figcaption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--gray);
}

.page-faq .faq-side__note {
  margin: 16px 0 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--gray);
  padding-left: 14px;
  border-left: 1px solid var(--neon);
}

/* ---------- 页尾安静角落 ---------- */

.page-faq .faq-quiet {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(36px, 5vw, 64px) var(--gut) clamp(96px, 13vw, 180px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-quiet__eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-quiet__title {
  margin: 0 0 14px;
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--navy);
  max-width: 26ch;
}

.page-faq .faq-quiet__line {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--gray);
}

.page-faq .faq-quiet a.link-more {
  color: var(--blue);
}

.page-faq .faq-quiet a.link-more:hover,
.page-faq .faq-quiet a.link-more:focus-visible {
  color: var(--orange);
}

/* ---------- 中等屏幕 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-index-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-index-link {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "num label"
      "num count";
    align-items: start;
    padding: 18px;
  }

  .page-faq .faq-index-num {
    grid-area: num;
    padding-top: 2px;
  }

  .page-faq .faq-index-label {
    grid-area: label;
  }

  .page-faq .faq-index-count {
    grid-area: count;
    margin-top: 4px;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-faq .faq-index-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-group__cols {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-group__cols .faq-side {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
  }

  .page-faq .faq-q__btn {
    padding: 22px 6px;
  }

  .page-faq .faq-a {
    padding-left: 24px;
  }
}

/* ---------- 降低动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q__mark::after,
  .page-faq .faq-index-link,
  .page-faq .faq-q__btn {
    transition: none;
  }
}
<<<END>>>