.page-faq {
  --faq-card: #101A15;
  --faq-card-open: #14211B;
  --faq-body-text: rgba(244, 246, 243, 0.86);
  --faq-radius: 0;
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  padding: clamp(28px, 5vw, 56px) 0 clamp(44px, 7vw, 84px);
  background:
    radial-gradient(120% 100% at 92% 0%, rgba(90, 122, 102, 0.30), transparent 62%),
    var(--ink-green);
  border-bottom: 2px solid var(--slate);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4.5vw, 52px);
  align-items: end;
}

.page-faq .faq-hero__copy {
  display: grid;
  gap: clamp(12px, 1.8vw, 20px);
  align-content: start;
}

.page-faq .breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-faq .breadcrumb li {
  color: var(--sage);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--steel);
}

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

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--amber);
}

.page-faq .faq-hero__kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-size: clamp(36px, 7.2vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--white);
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--faq-body-text);
}

.page-faq .faq-hero__tags {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-hero__tags li {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--linen);
  background: var(--slate);
  border-left: 3px solid var(--amber);
  padding: 5px 10px;
}

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

.page-faq .faq-hero__fig .figure__media {
  border: 2px solid var(--steel);
  background: var(--charcoal);
  overflow: hidden;
}

.page-faq .faq-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.05);
}

.page-faq .faq-hero__fig .figure__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--sage);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  }
}

/* ============ 主体两栏 ============ */
.page-faq .faq-body {
  padding: clamp(40px, 7vw, 88px) 0 clamp(56px, 9vw, 112px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.6vw, 44px);
  align-items: start;
}

/* ---- 左侧索引 ---- */
.page-faq .faq-index {
  border-top: 2px solid var(--clay);
  padding-top: 14px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--clay);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 13px;
  text-decoration: none;
  color: var(--sage);
  background: rgba(57, 68, 63, 0.32);
  border: 1px solid var(--steel);
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--white);
  border-color: var(--amber);
  background: rgba(224, 169, 79, 0.10);
}

.page-faq .faq-index__list .numeric {
  font-size: 11px;
  color: var(--amber);
}

@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(190px, 226px) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 132px;
    border-top: 0;
    border-left: 2px solid var(--clay);
    padding: 2px 0 2px 0;
  }

  .page-faq .faq-index__title {
    margin: 0 0 14px 14px;
  }

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

  .page-faq .faq-index__list a {
    background: transparent;
    border: 0;
    border-left: 2px solid transparent;
    padding: 9px 12px 9px 12px;
    margin-left: -2px;
    white-space: normal;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    background: rgba(224, 169, 79, 0.08);
    border-left-color: var(--amber);
  }
}

/* ============ 分组 ============ */
.page-faq .faq-group {
  padding-bottom: clamp(34px, 5vw, 60px);
  margin-bottom: clamp(34px, 5vw, 60px);
  border-bottom: 1px solid var(--slate);
  scroll-margin-top: 130px;
}

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

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-group__num {
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1;
  color: var(--amber);
  letter-spacing: 0.04em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(23px, 3.2vw, 38px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-group__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--linen);
  background: var(--slate);
  border-left: 3px solid var(--amber);
  padding: 5px 10px;
  margin-left: auto;
  align-self: center;
}

/* ============ 折叠条目 ============ */
.page-faq .faq-group__items {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  position: relative;
  background: var(--faq-card);
  border: 2px solid var(--steel);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-item:hover {
  border-color: var(--moss);
}

.page-faq .faq-item[open] {
  background: var(--faq-card-open);
  border-color: var(--clay);
}

.page-faq .faq-item[open]::before {
  content: "";
  position: absolute;
  left: -2px;
  top: -2px;
  bottom: -2px;
  width: 4px;
  background: var(--orange);
  z-index: 2;
}

.page-faq .faq-item__sum {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-item__sum:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: -4px;
}

.page-faq .faq-item__n {
  font-size: 12px;
  color: var(--sage);
  letter-spacing: 0.06em;
}

.page-faq .faq-item[open] .faq-item__n {
  color: var(--orange);
}

.page-faq .faq-item__q {
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 500;
  line-height: 1.5;
  color: var(--white);
}

.page-faq .faq-item__chev {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-right: 4px;
  border-right: 2px solid var(--sage);
  border-bottom: 2px solid var(--sage);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.22s ease, border-color 0.22s ease;
}

.page-faq .faq-item[open] .faq-item__chev {
  transform: rotate(-135deg) translate(-2px, -2px);
  border-color: var(--orange);
}

.page-faq .faq-item__body {
  padding: 0 16px 20px;
}

.page-faq .faq-item__body p {
  margin: 12px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-body-text);
}

.page-faq .faq-steps {
  counter-reset: step;
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--faq-body-text);
}

.page-faq .faq-steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  padding-top: 5px;
  color: var(--amber);
}

@media (min-width: 700px) {
  .page-faq .faq-item__sum {
    padding: 18px 22px;
    gap: 16px;
  }

  .page-faq .faq-item__body {
    padding: 0 22px 22px 60px;
  }
}

/* ============ 人工支持 ============ */
.page-faq .faq-group--help {
  border-bottom: 0;
}

.page-faq .faq-help__fig {
  margin: 0 0 clamp(22px, 3.4vw, 36px);
}

.page-faq .faq-help__fig .figure__media {
  border: 2px solid var(--steel);
  background: var(--charcoal);
  overflow: hidden;
}

.page-faq .faq-help__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.06);
}

.page-faq .faq-help__fig .figure__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--sage);
}

.page-faq .faq-help__panel {
  border: 2px solid var(--clay);
  background: var(--faq-card-open);
  padding: clamp(20px, 3.4vw, 38px);
}

.page-faq .faq-help__intro {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--faq-body-text);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(92, 106, 100, 0.42);
  font-size: 15px;
  line-height: 1.7;
  color: var(--white);
}

.page-faq .faq-help__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-help__list .numeric {
  font-size: 12px;
  color: var(--amber);
}

.page-faq .faq-contact {
  margin: clamp(22px, 3.2vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--steel);
}

.page-faq .faq-contact .contact-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(92, 106, 100, 0.42);
}

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

.page-faq .faq-contact .contact-item__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 16px);
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-help__note {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 66ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--sage);
}

.page-faq .faq-help__actions {
  margin-top: clamp(20px, 3vw, 30px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 720px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 40px);
  }

  .page-faq .faq-contact .contact-item {
    border-bottom: 1px solid rgba(92, 106, 100, 0.42);
    padding: 16px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__chev,
  .page-faq .faq-item,
  .page-faq .faq-index__list a {
    transition: none;
  }
}
<<<END>>>