.page-faq {
  --faq-rail-w: 226px;
  --faq-gap: clamp(24px, 3.4vw, 46px);
  --faq-hair: rgba(58, 63, 68, 0.14);
  --faq-hair-strong: rgba(58, 63, 68, 0.26);
  background: var(--c7-paper);
  color: var(--c7-gray);
  font-family: var(--c7-font-mono);
}

.page-faq .faq-inner {
  max-width: var(--c7-shell);
  margin: 0 auto;
  padding: clamp(24px, 4vw, 52px) clamp(16px, 3vw, 44px) clamp(56px, 8vw, 104px);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  margin-bottom: clamp(20px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  margin-bottom: clamp(28px, 4.4vw, 52px);
}

.page-faq .faq-hero__tag {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c7-copper);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-family: var(--c7-font-display);
  font-weight: 800;
  font-size: clamp(38px, 8.4vw, 86px);
  line-height: 0.94;
  letter-spacing: -0.025em;
  color: var(--c7-ink);
}

.page-faq .faq-hero__lede {
  margin: 0 0 clamp(24px, 3.6vw, 40px);
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(58, 63, 68, 0.88);
}

.page-faq .faq-hero__media {
  display: grid;
  gap: 18px;
}

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

.page-faq .faq-hero__facts {
  margin: 0;
  display: grid;
  gap: 1px;
  background: rgba(244, 241, 234, 0.16);
  border-radius: var(--c7-radius);
  overflow: hidden;
}

.page-faq .faq-hero__facts > div {
  background: var(--c7-ink);
  padding: 16px 18px;
}

.page-faq .faq-fact dt {
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c7-glaze-2);
  margin-bottom: 8px;
}

.page-faq .faq-fact dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--c7-paper);
}

.page-faq .faq-fact__num {
  font-family: var(--c7-font-display);
  font-weight: 800;
  font-size: 34px;
  line-height: 1;
  color: var(--c7-copper);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  padding: 16px 0;
  border-top: 1px solid var(--faq-hair-strong);
  border-bottom: 1px solid var(--faq-hair-strong);
  margin-bottom: clamp(26px, 4vw, 44px);
}

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

.page-faq .faq-filter__btn {
  font-family: var(--c7-font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--faq-hair-strong);
  background: transparent;
  color: rgba(58, 63, 68, 0.82);
  cursor: pointer;
  transition: background-color 180ms var(--c7-ease), border-color 180ms var(--c7-ease), color 180ms var(--c7-ease);
}

.page-faq .faq-filter__btn:hover,
.page-faq .faq-filter__btn:focus-visible {
  border-color: var(--c7-neon);
  color: var(--c7-glaze);
  background: rgba(59, 232, 176, 0.1);
}

.page-faq .faq-filter__btn[aria-pressed="true"] {
  background: var(--c7-glaze);
  border-color: var(--c7-glaze);
  color: var(--c7-paper);
}

.page-faq .faq-expand {
  font-family: var(--c7-font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px dashed var(--c7-copper);
  background: transparent;
  color: var(--c7-copper);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 180ms var(--c7-ease), color 180ms var(--c7-ease);
}

.page-faq .faq-expand:hover,
.page-faq .faq-expand:focus-visible {
  background: var(--c7-copper);
  color: var(--c7-paper);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c7-copper);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0 0 4px;
  padding: 0 0 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail__list li {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--faq-hair-strong);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  color: rgba(58, 63, 68, 0.8);
  transition: border-color 180ms var(--c7-ease), color 180ms var(--c7-ease), background-color 180ms var(--c7-ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: var(--c7-neon);
  background: rgba(59, 232, 176, 0.1);
  color: var(--c7-glaze);
}

.page-faq .faq-rail__num {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--c7-copper);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  margin-bottom: clamp(44px, 7vw, 82px);
  scroll-margin-top: 116px;
}

.page-faq .faq-sec:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-sechead {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--c7-glaze);
  margin-bottom: 20px;
}

.page-faq .faq-sechead__idx {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c7-copper);
}

.page-faq .faq-sechead__title {
  margin: 0;
  font-family: var(--c7-font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--c7-ink);
}

.page-faq .faq-sec__lead {
  margin: 0 0 20px;
  max-width: 66ch;
  font-size: 13.5px;
  line-height: 1.9;
  color: rgba(58, 63, 68, 0.84);
}

/* ---------- 短问答卡片 ---------- */
.page-faq .faq-quick {
  display: grid;
  gap: 12px;
  margin: 0 0 22px;
}

.page-faq .faq-quick__item {
  background: #ffffff;
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--c7-glaze-2);
  border-radius: var(--c7-radius);
  padding: 16px 18px;
}

.page-faq .faq-quick__q {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--c7-ink);
}

.page-faq .faq-quick__a {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.85;
  color: rgba(58, 63, 68, 0.86);
}

/* ---------- 抽屉 ---------- */
.page-faq .c7-drawer {
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .c7-drawer__head {
  color: var(--c7-ink);
  font-family: var(--c7-font-mono);
  font-size: 14px;
  line-height: 1.75;
  gap: 12px;
  padding: 16px 2px;
}

.page-faq .c7-drawer__head:hover,
.page-faq .c7-drawer__head:focus-visible {
  color: var(--c7-glaze);
}

.page-faq .c7-drawer__idx {
  flex: 0 0 auto;
  min-width: 44px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c7-copper);
}

.page-faq .faq-qtext {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .c7-drawer__inner {
  padding: 0 2px 22px;
  font-size: 13px;
  line-height: 1.9;
  color: rgba(58, 63, 68, 0.86);
}

.page-faq .c7-drawer__inner p {
  margin: 0 0 10px;
}

.page-faq .c7-drawer__inner p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-inline {
  color: var(--c7-glaze);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 111, 115, 0.35);
  transition: color 160ms var(--c7-ease), border-color 160ms var(--c7-ease);
}

.page-faq .faq-inline:hover,
.page-faq .faq-inline:focus-visible {
  color: var(--c7-copper);
  border-bottom-color: var(--c7-neon);
}

/* ---------- 表格 ---------- */
.page-faq .faq-tablewrap {
  overflow-x: auto;
  margin: 0 0 22px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--c7-radius);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  background: #ffffff;
  font-size: 12.5px;
}

.page-faq .faq-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c7-paper);
  background: var(--c7-glaze);
}

.page-faq .faq-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--faq-hair);
  line-height: 1.75;
  vertical-align: top;
  color: rgba(58, 63, 68, 0.88);
}

.page-faq .faq-table tbody tr:nth-child(even) td {
  background: rgba(227, 199, 158, 0.24);
}

.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table__num {
  font-family: var(--c7-font-display);
  font-weight: 800;
  font-size: 26px;
  line-height: 1;
  color: var(--c7-copper);
}

/* ---------- 留白引语带 ---------- */
.page-faq .faq-breath {
  position: relative;
  margin: clamp(40px, 7vw, 74px) 0;
  padding: clamp(28px, 5vw, 46px) clamp(20px, 4vw, 40px);
  background: var(--c7-ink);
  border-radius: var(--c7-radius-lg);
  overflow: hidden;
}

.page-faq .faq-breath::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--c7-neon);
}

.page-faq .faq-breath__quote {
  margin: 0;
  max-width: 40ch;
  font-family: var(--c7-font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.7vw, 27px);
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--c7-paper);
}

/* ---------- 配图 ---------- */
.page-faq .faq-fig {
  margin: clamp(26px, 4vw, 38px) 0 0;
}

/* ---------- 联系信息 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 1px;
  margin-top: 28px;
  background: rgba(59, 232, 176, 0.28);
  border-radius: var(--c7-radius);
  overflow: hidden;
}

.page-faq .faq-contact__item {
  display: flex;
  flex-direction: column;
  gap: 7px;
  background: var(--c7-ink);
  padding: 18px 20px;
}

.page-faq .faq-contact__label {
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c7-neon);
}

.page-faq .faq-contact__value {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c7-paper);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 16px 0 0;
  max-width: 70ch;
  font-size: 12.5px;
  line-height: 1.9;
  color: rgba(58, 63, 68, 0.82);
}

/* ---------- 返回顶部 ---------- */
.page-faq .faq-totop {
  margin-top: clamp(36px, 6vw, 64px);
  margin-left: auto;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

@media (min-width: 860px) {
  .page-faq .faq-hero__media {
    grid-template-columns: minmax(0, 1.65fr) minmax(200px, 0.72fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(34px, 5vw, 74px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 118px;
    align-self: start;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__list li {
    flex: 1 1 auto;
    width: 100%;
  }

  .page-faq .faq-rail__link {
    display: flex;
    width: 100%;
    border: 0;
    border-left: 2px solid var(--faq-hair-strong);
    border-radius: 0;
    padding: 11px 0 11px 14px;
    white-space: normal;
    background: transparent;
    font-size: 12px;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--c7-neon);
    background: rgba(59, 232, 176, 0.08);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-filter__btn,
  .page-faq .faq-expand,
  .page-faq .faq-rail__link,
  .page-faq .faq-inline {
    transition: none;
  }
}
<<<END>>>