.page-faq {
  --faq-rail: 248px;
  --faq-hairstroke: var(--line-soft);
  --faq-glow: rgba(184, 255, 61, 0.06);
}

.page-faq .faq-crumb {
  padding-top: clamp(16px, 3vw, 26px);
}

.page-faq .faq-crumb .breadcrumb {
  margin-bottom: clamp(14px, 2.4vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(22, 36, 30, 0.6), rgba(7, 17, 13, 0));
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--faq-hairstroke) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-hairstroke) 1px, transparent 1px);
  background-size: 68px 68px;
  opacity: 0.35;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  top: -30%;
  width: 58%;
  height: 170%;
  background: var(--faq-glow);
  clip-path: polygon(28% 0, 100% 0, 72% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  padding-block: clamp(28px, 5vw, 56px) clamp(30px, 5vw, 60px);
}

.page-faq .faq-hero h1 {
  font-family: var(--display);
  font-size: clamp(30px, 7vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--paper);
  margin: 10px 0 18px;
  max-width: 16ch;
}

.page-faq .faq-hero__text {
  max-width: 60ch;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.75;
  margin: 0 0 22px;
}

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

.page-faq .faq-quick .tag {
  text-decoration: none;
  display: inline-block;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-quick .tag:hover,
.page-faq .faq-quick .tag:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
  background: rgba(184, 255, 61, 0.08);
}

.page-faq .faq-hero__panel {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: clamp(16px, 3vw, 22px);
}

.page-faq .faq-hero__panel-title {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-hairstroke);
}

.page-faq .faq-facts__item a {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 14px 14px 16px;
  background: var(--panel);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background-color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-facts__item a:hover,
.page-faq .faq-facts__item a:focus-visible {
  background: var(--panel-2);
  border-left-color: var(--lime);
}

.page-faq .faq-facts__num {
  font-size: clamp(22px, 4vw, 28px);
  line-height: 1;
  color: var(--lime);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-faq .faq-facts__unit {
  font-size: 12px;
  color: var(--silver);
  margin-left: 4px;
  letter-spacing: 0;
}

.page-faq .faq-facts__label {
  font-size: 13px;
  line-height: 1.55;
  color: var(--silver);
}

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding-block: clamp(28px, 5vw, 56px) clamp(40px, 7vw, 80px);
}

.page-faq .faq-rail {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-faq .faq-rail__title {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--silver-dim);
  margin: 0 0 12px;
}

.page-faq .faq-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  color: var(--paper);
  font-size: 13px;
  text-decoration: none;
  background: transparent;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-toc__idx {
  font-size: 11px;
  color: var(--teal);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
  background: rgba(184, 255, 61, 0.07);
}

.page-faq .faq-rail__card {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  background: var(--panel);
  padding: 14px 16px;
}

.page-faq .faq-rail__card-text {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--silver);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding-top: clamp(24px, 4vw, 34px);
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-sec + .faq-sec {
  margin-top: clamp(30px, 5vw, 52px);
}

.page-faq .faq-sec__head {
  position: relative;
  margin-bottom: clamp(16px, 3vw, 24px);
  padding-left: 46px;
}

.page-faq .faq-sec__idx {
  position: absolute;
  left: 0;
  top: 4px;
  font-size: 12px;
  color: var(--orange);
  letter-spacing: 0.08em;
}

.page-faq .faq-sec__title {
  font-family: var(--display);
  font-size: clamp(22px, 4.4vw, 34px);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-faq .faq-sec__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-faq .faq-steps__item {
  background: var(--panel);
  padding: 16px 16px 18px;
}

.page-faq .faq-steps__num {
  display: inline-block;
  font-size: 11px;
  color: var(--ink);
  background: var(--lime);
  padding: 2px 7px;
  margin-bottom: 10px;
  letter-spacing: 0.08em;
}

.page-faq .faq-steps__name {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

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

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  background: var(--panel-2);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.page-faq .faq-figure__cap {
  display: block;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--silver-dim);
  padding: 10px 14px;
  border-top: 1px solid var(--line);
}

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

.page-faq .qa {
  border-bottom: 1px solid var(--line);
  transition: background-color 0.2s ease;
}

.page-faq .qa[open] {
  background: rgba(184, 255, 61, 0.035);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 8px 15px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
  color: var(--silver);
  transition: color 0.18s ease, transform 0.18s ease;
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
  color: var(--lime);
}

.page-faq .qa:hover .qa__q::after {
  color: var(--lime);
}

.page-faq .qa__idx {
  flex: 0 0 auto;
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 0.06em;
  padding-top: 2px;
}

.page-faq .qa__title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .qa[open] .qa__title {
  color: var(--lime);
}

.page-faq .qa__a {
  padding: 0 12px 18px 36px;
}

.page-faq .qa__a p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--silver);
}

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

/* ---------- 编号纸带 ---------- */
.page-faq .faq-code {
  background: var(--band);
  color: var(--band-ink);
  padding: 18px 18px 20px;
  margin-bottom: clamp(18px, 3vw, 26px);
  border-left: 4px solid var(--orange);
}

.page-faq .faq-code__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(16, 26, 21, 0.62);
}

.page-faq .faq-code__value {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: clamp(20px, 5vw, 32px);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.1;
  word-break: break-word;
}

.page-faq .faq-code__sep {
  color: var(--orange);
  margin: 0 2px;
}

.page-faq .faq-code__legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 0;
  padding: 12px 0 0;
  border-top: 1px solid rgba(16, 26, 21, 0.18);
  font-size: 12px;
  color: rgba(16, 26, 21, 0.72);
}

.page-faq .faq-code__legend .mono {
  color: var(--band-ink);
  font-weight: 700;
  margin-right: 4px;
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-sec--support {
  padding-top: clamp(24px, 4vw, 34px);
}

.page-faq .faq-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 26px);
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-faq .faq-support__text p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--silver);
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-support__list li {
  background: var(--panel);
  padding: 11px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--paper);
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.page-faq .faq-support__list .mono {
  font-size: 11px;
  color: var(--orange);
}

.page-faq .faq-support__note {
  font-size: 13px;
  color: var(--silver-dim);
  border-left: 2px solid var(--teal);
  padding-left: 12px;
}

.page-faq .faq-support__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel-2);
  overflow: hidden;
}

.page-faq .faq-support__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06);
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-contact__row {
  background: var(--panel-2);
  padding: 13px 16px;
  display: grid;
  gap: 4px;
}

.page-faq .faq-contact__label {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--teal);
  text-transform: uppercase;
}

.page-faq .faq-contact__value {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--paper);
  letter-spacing: 0.02em;
  word-break: break-word;
}

.page-faq .faq-contact__tip {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver-dim);
}

/* ---------- 尾段 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(30px, 5vw, 52px);
  border: 1px solid var(--line);
  border-top: 2px solid var(--lime);
  background: var(--panel);
  padding: clamp(20px, 4vw, 32px);
  display: grid;
  gap: 20px;
}

.page-faq .faq-cta .mono {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange);
  margin: 0 0 8px;
}

.page-faq .faq-cta__title {
  font-family: var(--display);
  font-size: clamp(20px, 3.6vw, 30px);
  line-height: 1.2;
  font-weight: 800;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-faq .faq-cta__text p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
  max-width: 56ch;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-cta__actions .btn {
  text-decoration: none;
}

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

  .page-faq .faq-facts__item a {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }

  .page-faq .faq-facts__num {
    min-width: 92px;
  }

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

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-faq .faq-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: end;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    border-top: 0;
    padding-top: 0;
  }

  .page-faq .faq-toc {
    flex-direction: column;
    align-items: stretch;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    padding: 0;
  }

  .page-faq .faq-toc__link {
    border: 0;
    background: var(--panel);
    padding: 11px 13px;
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    background: var(--panel-2);
  }

  .page-faq .qa__q {
    padding: 18px 6px 18px 2px;
    gap: 16px;
  }

  .page-faq .qa__title {
    font-size: 16px;
  }

  .page-faq .qa__a {
    padding: 0 40px 20px 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick .tag,
  .page-faq .faq-toc__link,
  .page-faq .faq-facts__item a,
  .page-faq .qa,
  .page-faq .qa__q::after {
    transition: none;
  }
}
<<<END>>>