.page-faq {
  --faq-index-w: 236px;
  --faq-answer-ink: #253229;
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(22px, 5vw, 42px) 0 clamp(34px, 6vw, 62px);
  background:
    radial-gradient(130% 100% at 12% -10%, #2c5140 0%, #1b3026 46%, #101a14 100%);
  color: var(--paper);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .2;
  filter: saturate(.55) contrast(1.05);
}

.page-faq .faq-hero__inner {
  padding-top: 4px;
}

.page-faq .faq-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  font-size: .78rem;
  letter-spacing: .04em;
}

.page-faq .faq-hero .breadcrumb__item {
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.page-faq .faq-hero .breadcrumb__link {
  color: rgba(247, 245, 239, .68);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb__item[aria-current] .breadcrumb__link {
  color: var(--paper);
}

.page-faq .faq-hero .breadcrumb__sep {
  color: rgba(247, 245, 239, .38);
}

.page-faq .faq-hero__eyebrow {
  color: var(--lamp);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  margin: 0 0 14px;
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.2rem, 8vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -.03em;
}

.page-faq .faq-hero__lead {
  max-width: 46ch;
  margin: 20px 0 0;
  font-size: clamp(.95rem, 2.4vw, 1.05rem);
  line-height: 1.8;
  color: rgba(247, 245, 239, .82);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__stats li {
  flex: 1 1 150px;
  padding: 12px 14px;
  border: 1px solid var(--line-light);
  border-radius: var(--r-md);
  background: rgba(247, 245, 239, .06);
}

.page-faq .faq-hero__num {
  display: block;
  font-size: 1.45rem;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--lamp);
}

.page-faq .faq-hero__lab {
  display: block;
  margin-top: 5px;
  font-size: .74rem;
  letter-spacing: .06em;
  color: rgba(247, 245, 239, .68);
}

/* ---------- 冲刺条带 ---------- */
.page-faq .faq-band {
  background: var(--ink);
  color: var(--paper);
  border-top: 3px solid var(--sprint);
}

.page-faq .faq-band__track {
  display: flex;
  overflow-x: auto;
  padding: 0 var(--pad);
  scrollbar-width: none;
}

.page-faq .faq-band__track::-webkit-scrollbar {
  height: 0;
}

.page-faq .faq-band__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 15px 18px;
  border-right: 1px solid var(--line-light);
  color: var(--paper);
  font-size: .9rem;
  font-weight: 600;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-band__item:first-child {
  border-left: 1px solid var(--line-light);
}

.page-faq .faq-band__item:hover,
.page-faq .faq-band__item:focus-visible {
  background: var(--forest);
  color: var(--sprint);
}

.page-faq .faq-band__num {
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--sprint);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 26px;
  padding-top: clamp(28px, 5vw, 56px);
  padding-bottom: clamp(36px, 6vw, 72px);
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  padding: 14px;
  border-radius: var(--r-md);
  background: var(--paper-warm);
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--stone);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  scrollbar-width: none;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  height: 0;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--r-pill);
  color: var(--ink);
  font-size: .84rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-index__num {
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--bamboo);
  transition: color .2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--paper);
  color: var(--ink);
}

.page-faq .faq-index__link:hover .faq-index__num,
.page-faq .faq-index__link:focus-visible .faq-index__num {
  color: var(--sprint);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 96px;
  padding-bottom: 26px;
  margin-bottom: 34px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-group--last {
  margin-bottom: 0;
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: center;
  margin-bottom: 14px;
}

.page-faq .faq-group__num {
  grid-row: span 2;
  font-size: clamp(1.9rem, 6vw, 2.9rem);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -.05em;
  color: var(--moss);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.32rem, 3.6vw, 1.85rem);
  letter-spacing: -.02em;
  line-height: 1.2;
}

.page-faq .faq-group__desc {
  grid-column: 2;
  margin: 0;
  font-size: .87rem;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 22px;
  max-width: 620px;
}

.page-faq .faq-figure .media-frame__cap {
  font-size: .78rem;
  color: var(--stone);
}

/* ---------- 手风琴 ---------- */
.page-faq .qa {
  border-top: 1px solid var(--line-soft);
}

.page-faq .qa__q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  transition: color .2s var(--ease);
}

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

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--bamboo);
}

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

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 1.5px solid var(--bamboo);
  border-radius: 50%;
  color: var(--bamboo);
  transition: transform .24s var(--ease), background .24s var(--ease), color .24s var(--ease);
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: currentColor;
}

.page-faq .qa__mark::before {
  width: 9px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .qa__mark::after {
  width: 1.5px;
  height: 9px;
  transform: translate(-50%, -50%);
  transition: opacity .2s var(--ease);
}

.page-faq .qa[open] .qa__mark {
  transform: rotate(180deg);
  background: var(--bamboo);
  color: var(--paper);
}

.page-faq .qa[open] .qa__mark::after {
  opacity: 0;
}

.page-faq .qa__a {
  margin: 0 0 0 2px;
  padding: 2px 0 20px 16px;
  border-left: 2px solid var(--bamboo);
  font-size: .95rem;
  line-height: 1.85;
  color: var(--faq-answer-ink);
}

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

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

/* ---------- 操作路径块 ---------- */
.page-faq .qa-path {
  margin: 14px 0 4px;
  padding: 14px 16px;
  border-radius: var(--r-sm);
  background: var(--paper-warm);
}

.page-faq .qa-path__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--clay);
}

.page-faq .qa-path__list {
  margin: 0 0 12px;
  padding-left: 18px;
  font-size: .89rem;
  line-height: 1.75;
  color: var(--faq-answer-ink);
}

.page-faq .qa-path__list li {
  margin-bottom: 4px;
}

.page-faq .qa-path__list li::marker {
  color: var(--bamboo);
  font-family: var(--font-mono);
}

.page-faq .qa-path .copy-btn {
  margin-right: 8px;
}

/* ---------- 人工通道 ---------- */
.page-faq .faq-escalate {
  position: relative;
  overflow: hidden;
  padding: clamp(38px, 7vw, 68px) 0 clamp(34px, 6vw, 60px);
  background:
    radial-gradient(90% 120% at 88% 0%, #2b4d3b 0%, #1e3a2c 52%, #14261d 100%);
  color: var(--paper);
}

.page-faq .faq-escalate__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--sprint);
}

.page-faq .faq-escalate__title {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 5.2vw, 2.8rem);
  line-height: 1.12;
  letter-spacing: -.025em;
}

.page-faq .faq-escalate__lead {
  max-width: 52ch;
  margin: 16px 0 0;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(247, 245, 239, .78);
}

.page-faq .faq-escalate__grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .faq-escalate__card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 20px 20px 22px;
  border: 1px solid var(--line-light);
  border-radius: var(--r-md);
  background: rgba(247, 245, 239, .05);
}

.page-faq .faq-escalate__card-title {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-faq .faq-escalate__card-text {
  margin: 0;
  font-size: .88rem;
  line-height: 1.75;
  color: rgba(247, 245, 239, .72);
}

.page-faq .faq-escalate__card .btn {
  margin-top: 4px;
}

.page-faq .faq-escalate__foot {
  margin: 24px 0 0;
  font-size: .86rem;
  line-height: 1.75;
  color: rgba(247, 245, 239, .66);
}

.page-faq .faq-escalate__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 12px 0 0;
  font-size: .84rem;
}

.page-faq .faq-escalate__links a {
  color: var(--moss);
  text-decoration: none;
  border-bottom: 1px solid rgba(168, 196, 176, .4);
  padding-bottom: 1px;
}

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

/* ---------- 宽屏 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-escalate__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-figure {
    margin-left: auto;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
  }

  .page-faq .faq-index__link {
    display: flex;
    border-radius: var(--r-sm);
    white-space: normal;
    line-height: 1.5;
  }

  .page-faq .qa__q {
    font-size: 1.04rem;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__lead {
    font-size: 1.06rem;
  }

  .page-faq .qa__a {
    padding-left: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__mark,
  .page-faq .qa-band__item,
  .page-faq .faq-band__item,
  .page-faq .faq-index__link {
    transition: none;
  }
}
<<<END>>>