.page-faq {
  --faq-ink: var(--c-ink);
  --faq-hair: var(--c-line);
  background: var(--c-canvas);
  color: var(--c-title);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  background: var(--c-ink);
  padding: 14px 0;
}
.page-faq .faq-crumb .breadcrumb {
  margin: 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(214, 43, 32, 0.32), transparent 60%),
    linear-gradient(160deg, var(--c-ink) 0%, var(--c-ink-2) 100%);
  color: var(--c-on-dark);
  padding: clamp(34px, 6vw, 68px) 0 clamp(30px, 5vw, 58px);
  overflow: hidden;
}
.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}
.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-on-dark-dim);
}
.page-faq .faq-hero__eyebrow .num {
  color: var(--c-yellow);
}
.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: #fff;
  max-width: 16em;
}
.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 3.6vw, 18px);
  line-height: 1.75;
  color: var(--c-on-dark);
}

/* ---------- 搜索与筛选 ---------- */
.page-faq .faq-search {
  background: var(--c-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--c-hairline);
  border-radius: var(--radius);
  padding: clamp(16px, 3.4vw, 24px);
}
.page-faq .faq-search__label {
  display: block;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-on-dark-dim);
  margin-bottom: 10px;
}
.page-faq .faq-search__box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  background: var(--c-surface);
  border-radius: var(--radius);
  padding: 10px 14px;
}
.page-faq .faq-search__input {
  flex: 1 1 200px;
  min-width: 0;
  border: 0;
  background: transparent;
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.4;
  color: var(--c-title);
  padding: 6px 0;
  outline: none;
}
.page-faq .faq-search__input::placeholder {
  color: var(--c-muted);
}
.page-faq .faq-search__count {
  font-size: 12px;
  font-family: var(--f-mono);
  letter-spacing: 0.06em;
  color: var(--c-muted);
  white-space: nowrap;
}
.page-faq .faq-search__count .num {
  color: var(--c-red);
  font-size: 15px;
}
.page-faq .faq-search__chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
}
.page-faq .faq-chip {
  appearance: none;
  border: 1px solid var(--c-hairline);
  background: rgba(255, 255, 255, 0.06);
  color: var(--c-on-dark);
  font-family: var(--f-body);
  font-size: 14px;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.page-faq .faq-chip:hover {
  border-color: var(--c-yellow);
  color: #fff;
}
.page-faq .faq-chip[aria-pressed="true"] {
  background: var(--c-yellow);
  border-color: var(--c-yellow);
  color: var(--c-ink);
  font-weight: 600;
}
.page-faq .faq-search__kicker {
  font-size: 12px;
  color: var(--c-on-dark-dim);
  margin-left: auto;
}
.page-faq .faq-search__live {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--c-teal);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: clamp(30px, 5vw, 64px) 0 clamp(40px, 6vw, 84px);
}
.page-faq .faq-body__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

/* 侧栏锚点 */
.page-faq .faq-anchor {
  background: var(--c-surface);
  border-left: 4px solid var(--c-red);
  border-radius: var(--radius);
  padding: 20px 18px;
  box-shadow: 0 10px 30px rgba(11, 33, 27, 0.06);
}
.page-faq .faq-anchor__title {
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.page-faq .faq-anchor__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-faq .faq-anchor__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 8px;
  text-decoration: none;
  color: var(--c-title);
  border-bottom: 1px solid rgba(207, 216, 212, 0.6);
  transition: color 0.15s ease, background 0.15s ease, padding-left 0.15s ease;
}
.page-faq .faq-anchor__list li:last-child a {
  border-bottom: 0;
}
.page-faq .faq-anchor__list a .num {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--c-red);
  letter-spacing: 0.04em;
  flex: 0 0 auto;
}
.page-faq .faq-anchor__list a span:last-child {
  font-size: 15px;
  line-height: 1.45;
}
.page-faq .faq-anchor__list a:hover,
.page-faq .faq-anchor__list a:focus-visible {
  background: rgba(214, 43, 32, 0.06);
  color: var(--c-red-deep);
  padding-left: 14px;
}
.page-faq .faq-anchor__note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--c-line);
}
.page-faq .faq-anchor__note p {
  margin: 10px 0 14px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-muted);
}
.page-faq .faq-anchor__note .btn {
  font-size: 14px;
}

/* ---------- 问答面板 ---------- */
.page-faq .faq-panel {
  display: grid;
  gap: clamp(30px, 5vw, 52px);
  min-width: 0;
}
.page-faq .faq-group {
  scroll-margin-top: 96px;
}
.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 14px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 3px solid var(--c-ink);
  margin-bottom: 6px;
}
.page-faq .faq-group__idx {
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--c-red);
  letter-spacing: 0.06em;
}
.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(22px, 4.4vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--c-title);
}
.page-faq .faq-group__lede {
  grid-column: 2 / -1;
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-muted);
  max-width: 46em;
}

/* 单条问答 */
.page-faq .qa {
  border-bottom: 1px solid var(--c-line);
  background: transparent;
  transition: background 0.18s ease;
}
.page-faq .qa[open] {
  background: var(--c-surface);
  box-shadow: 0 12px 34px rgba(11, 33, 27, 0.07);
}
.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 8px;
  cursor: pointer;
  list-style: none;
  position: relative;
}
.page-faq .qa__q::-webkit-details-marker {
  display: none;
}
.page-faq .qa__mark {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  background: var(--c-ink);
  color: var(--c-yellow);
  font-size: 13px;
  font-weight: 700;
  border-radius: 2px;
  margin-top: 2px;
}
.page-faq .qa__text {
  flex: 1 1 auto;
  font-family: var(--f-body);
  font-size: clamp(16px, 3.8vw, 18px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-title);
}
.page-faq .qa__caret {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  margin-top: 8px;
  border-right: 2px solid var(--c-muted);
  border-bottom: 2px solid var(--c-muted);
  transform: rotate(45deg);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.page-faq .qa[open] .qa__caret {
  transform: rotate(-135deg);
  border-color: var(--c-red);
}
.page-faq .qa__q:hover .qa__text,
.page-faq .qa__q:focus-visible .qa__text {
  color: var(--c-red-deep);
}
.page-faq .qa__a {
  position: relative;
  padding: 2px 8px 22px 44px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-muted);
}
.page-faq .qa__a::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 2px;
  bottom: 22px;
  width: 2px;
  background: linear-gradient(var(--c-red), var(--c-yellow));
  border-radius: 2px;
}
.page-faq .qa__a p {
  margin: 0 0 12px;
}
.page-faq .qa__a p:last-child {
  margin-bottom: 0;
}
.page-faq .qa__a a {
  color: var(--c-red-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .qa__a a:hover {
  color: var(--c-red);
}

/* 中部横条图 */
.page-faq .faq-strip {
  margin: 0;
}
.page-faq .faq-strip .media {
  border-radius: var(--radius);
  overflow: hidden;
}
.page-faq .faq-strip__cap {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--c-muted);
}

/* ---------- 版本锚点区 ---------- */
.page-faq .faq-version {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.4vw, 34px);
  background: linear-gradient(150deg, var(--c-ink) 0%, var(--c-ink-2) 100%);
  border-radius: var(--radius);
  padding: clamp(20px, 4vw, 34px);
  color: var(--c-on-dark);
}
.page-faq .faq-version__card {
  min-width: 0;
}
.page-faq .faq-version__top {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
.page-faq .faq-version__no {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(46px, 13vw, 82px);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--c-yellow);
}
.page-faq .faq-version__date {
  margin: 12px 0 0;
  font-size: clamp(16px, 4vw, 20px);
  color: #fff;
}
.page-faq .faq-version__date .num {
  color: var(--c-yellow);
  font-size: 1.15em;
}
.page-faq .faq-version__desc {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-on-dark);
  max-width: 44em;
}
.page-faq .faq-version__switch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 16px;
}
.page-faq .faq-vbtn {
  appearance: none;
  border: 1px solid var(--c-hairline);
  background: rgba(255, 255, 255, 0.05);
  color: var(--c-on-dark);
  font-family: var(--f-body);
  font-size: 14px;
  padding: 7px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.page-faq .faq-vbtn .num {
  color: inherit;
  font-size: 14px;
}
.page-faq .faq-vbtn:hover {
  border-color: var(--c-yellow);
  color: #fff;
}
.page-faq .faq-vbtn[aria-pressed="true"] {
  background: var(--c-red);
  border-color: var(--c-red);
  color: #fff;
}
.page-faq .faq-version__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-version__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.05);
  border-left: 3px solid var(--c-yellow);
  border-radius: 2px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-on-dark);
}
.page-faq .faq-version__list .tag {
  flex: 0 0 auto;
  margin-top: 2px;
}
.page-faq .faq-version__empty {
  display: block;
  margin-top: 12px;
  font-size: 14px;
  color: var(--c-on-dark-dim);
}
.page-faq .faq-version__figure {
  min-width: 0;
}
.page-faq .faq-version__figure .media {
  border-radius: var(--radius);
  overflow: hidden;
}
.page-faq .faq-version__figure .media__caption {
  color: var(--c-on-dark-dim);
}

/* ---------- 联系收尾 ---------- */
.page-faq .faq-group--contact .faq-group__head {
  border-bottom-color: var(--c-red);
}
.page-faq .faq-contact {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  background: var(--c-surface);
  border-radius: var(--radius);
  padding: clamp(18px, 3.6vw, 28px);
  box-shadow: 0 14px 40px rgba(11, 33, 27, 0.08);
}
.page-faq .faq-contact__lead {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-title);
}
.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .faq-contact__list li {
  display: grid;
  gap: 6px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(207, 216, 212, 0.7);
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-muted);
}
.page-faq .faq-contact__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-faq .faq-contact__label {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-red);
}
.page-faq .faq-contact__list .num {
  font-size: 17px;
  color: var(--c-title);
  word-break: break-all;
}
.page-faq .faq-contact__side {
  display: grid;
  align-content: start;
  gap: 12px;
  background: var(--c-canvas);
  border-radius: var(--radius);
  padding: 16px;
}
.page-faq .faq-contact__tip {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* 筛选隐藏态 */
.page-faq [data-filter-item][hidden] {
  display: none;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-body__inner {
    grid-template-columns: 272px minmax(0, 1fr);
  }
  .page-faq .faq-anchor {
    position: sticky;
    top: calc(var(--topbar-h) + 20px);
  }
  .page-faq .faq-version {
    grid-template-columns: minmax(0, 1fr) 232px;
    align-items: start;
  }
  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: start;
  }
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
  }
}

@media (min-width: 1160px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }
  .page-faq .faq-version {
    grid-template-columns: minmax(0, 1fr) 280px;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-vbtn,
  .page-faq .qa,
  .page-faq .qa__caret,
  .page-faq .faq-anchor__list a {
    transition: none;
  }
}
<<<END>>>