.page-faq {
  --faq-idx: 236px;
  --faq-gutter: clamp(24px, 4vw, 56px);
  --faq-shell: 100%;
  display: block;
  padding-bottom: clamp(48px, 8vw, 96px);
  background-color: var(--ink);
  background-image:
    linear-gradient(180deg, rgba(18, 51, 42, 0.55) 0%, rgba(6, 17, 14, 0) 460px),
    repeating-linear-gradient(90deg, rgba(30, 74, 60, 0.30) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(30, 74, 60, 0.14) 0 1px, transparent 1px 72px);
}

.page-faq a {
  color: var(--cyan);
  text-decoration: none;
}

.page-faq a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .breadcrumb {
  padding-top: clamp(14px, 2.5vw, 24px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(14px, 2.5vw, 22px) 0 clamp(26px, 4vw, 48px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--line);
  padding-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-hero__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(30px, 5.2vw, 52px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 0 0 18px;
}

.page-faq .faq-hero__lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
  max-width: 36em;
  margin: 0 0 22px;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-jump a {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--silver);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 14px;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease), background 0.15s var(--ease);
}

.page-faq .faq-jump a:hover {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  text-decoration: none;
}

.page-faq .faq-hero__panel {
  border: 1px solid var(--line);
  background: linear-gradient(155deg, var(--panel) 0%, var(--ink-2) 72%);
  padding: clamp(16px, 2.5vw, 22px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .kpi {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(30, 74, 60, 0.9);
}

.page-faq .kpi:first-child {
  padding-top: 0;
}

.page-faq .kpi__value {
  font-family: var(--font-num);
  font-size: 38px;
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .kpi__unit {
  font-size: 16px;
  margin-left: 2px;
  color: var(--mint);
}

.page-faq .kpi__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .faq-hero__note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  margin: 14px 0 0;
}

/* ---------- 两栏骨架 ---------- */
.page-faq .faq-layout {
  display: block;
  padding-top: clamp(20px, 3.5vw, 34px);
}

.page-faq .faq-index {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .faq-index__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: 8px 12px;
  color: var(--silver);
  font-size: 14px;
}

.page-faq .faq-index__no {
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(30px, 5vw, 58px);
}

.page-faq .faq-group + .faq-group::before {
  content: "";
  display: block;
  height: 6px;
  margin-bottom: clamp(22px, 3.5vw, 36px);
  background: repeating-linear-gradient(135deg, var(--line) 0 10px, transparent 10px 20px);
  transform: skewY(-1.1deg);
  transform-origin: left center;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: end;
  gap: 2px 14px;
  padding-bottom: 12px;
  margin-bottom: clamp(12px, 2vw, 18px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__num {
  grid-row: 1 / 3;
  align-self: end;
  font-family: var(--font-num);
  font-size: clamp(40px, 6.4vw, 58px);
  font-weight: 700;
  line-height: 0.82;
  letter-spacing: -0.03em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-group h2 {
  font-family: var(--font-head);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0;
  line-height: 1.2;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(14px, 2.4vw, 22px);
  border: 1px solid var(--line);
  background: var(--ink-2);
}

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

.page-faq .faq-figure figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 10px 14px;
  border-top: 1px solid var(--line);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border-bottom: 1px solid rgba(30, 74, 60, 0.75);
}

.page-faq .qa:first-of-type {
  border-top: 1px solid rgba(30, 74, 60, 0.75);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 12px 15px 16px;
  border-left: 2px solid transparent;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
  transition: background 0.15s var(--ease), color 0.15s var(--ease), border-color 0.15s var(--ease);
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q:hover {
  background: rgba(55, 245, 193, 0.05);
}

.page-faq .qa__icon {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.page-faq .qa__icon::before {
  width: 10px;
  height: 1px;
}

.page-faq .qa__icon::after {
  width: 1px;
  height: 10px;
  transition: opacity 0.15s var(--ease), transform 0.15s var(--ease);
}

.page-faq .qa[open] .qa__q {
  border-left-color: var(--cyan);
  color: var(--mint);
  background: rgba(55, 245, 193, 0.05);
}

.page-faq .qa[open] .qa__icon {
  border-color: var(--cyan);
}

.page-faq .qa[open] .qa__icon::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .qa__a {
  padding: 0 16px 18px 18px;
  border-left: 2px solid var(--cyan);
  color: var(--silver);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 40em;
}

.page-faq .steps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .steps li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--silver);
  border: 1px solid var(--line);
  background: var(--ink-2);
  border-radius: var(--r);
  padding: 6px 10px;
}

.page-faq .steps li::before {
  content: attr(data-step);
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  color: var(--coral);
  line-height: 1;
}

/* ---------- 联系块 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(18px, 3vw, 28px);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, var(--panel) 0%, var(--ink-2) 78%);
  padding: clamp(16px, 3vw, 26px);
}

.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin: 0 0 10px;
}

.page-faq .faq-contact__title {
  font-family: var(--font-head);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 800;
  color: var(--paper);
  margin: 0 0 16px;
  line-height: 1.3;
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  border-top: 1px solid rgba(30, 74, 60, 0.8);
  padding-top: 12px;
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  width: 100%;
}

.page-faq .faq-contact__v {
  font-size: 15px;
  color: var(--paper);
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-contact .copy-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mint);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 5px 10px;
  cursor: pointer;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease), background 0.15s var(--ease);
}

.page-faq .faq-contact .copy-btn:hover {
  background: rgba(55, 245, 193, 0.12);
  border-color: var(--cyan);
}

.page-faq .faq-contact .copy-btn[data-copied="true"] {
  color: var(--ink);
  background: var(--coral);
  border-color: var(--coral);
}

.page-faq .faq-contact__note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  margin: 16px 0 0;
}

/* ---------- 延伸导航 ---------- */
.page-faq .faq-next {
  display: grid;
  gap: 12px;
  margin-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-next__item {
  display: grid;
  gap: 6px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  background: var(--ink-2);
  padding: 16px 18px;
  transition: transform 0.15s var(--ease), border-color 0.15s var(--ease);
}

.page-faq .faq-next__item:hover {
  transform: translateY(-2px);
  border-left-color: var(--cyan);
  text-decoration: none;
}

.page-faq .faq-next__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--coral);
}

.page-faq .faq-next__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
  line-height: 1.5;
}

.page-faq .faq-next__go {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

@media (min-width: 620px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact__item:first-child {
    grid-column: 1 / -1;
  }

  .page-faq .faq-next {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(240px, 0.7fr);
    align-items: start;
  }

  .page-faq .faq-next {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
    margin-bottom: 0;
    border-right: 1px solid var(--line);
    padding-right: 16px;
  }

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index__list li + li {
    margin-top: 4px;
  }

  .page-faq .faq-index__list a {
    justify-content: flex-start;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    padding: 9px 8px 9px 12px;
    font-size: 15px;
  }

  .page-faq .faq-index__list a:hover {
    border-left-color: var(--cyan);
    background: rgba(55, 245, 193, 0.06);
    text-decoration: none;
  }

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

@media (min-width: 1100px) {
  .page-faq {
    --faq-idx: 260px;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr) minmax(0, 1.4fr);
  }

  .page-faq .faq-contact__item:first-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .qa__q,
  .page-faq .qa__icon::after,
  .page-faq .faq-next__item,
  .page-faq .faq-contact .copy-btn {
    transition: none;
  }

  .page-faq .faq-next__item:hover {
    transform: none;
  }
}
<<<END>>>