.page-faq {
  --faq-idx: 264px;
  --faq-accent: var(--sj-summer);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--sj-surface);
  border: 1px solid var(--sj-line);
  border-radius: 18px;
  padding: 18px 16px 26px;
  margin-bottom: 32px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 22px;
  width: 96px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--sj-spring), var(--sj-spring-2), var(--sj-summer));
}

.page-faq .faq-hero .sj-breadcrumb {
  margin-bottom: 16px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sj-summer);
  margin-right: 8px;
  vertical-align: middle;
}

.page-faq .sj-title-xl {
  font-size: clamp(34px, 5.2vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 10px 0 14px;
}

.page-faq .faq-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-quick__chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--sj-line-strong);
  border-radius: var(--sj-pill);
  background: rgba(5, 7, 12, .55);
  color: var(--sj-text);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .18s ease, color .18s ease, transform .18s ease;
}

.page-faq .faq-quick__chip:hover {
  border-color: var(--sj-spring);
  color: var(--sj-spring);
  transform: translateY(-2px);
}

.page-faq .faq-hero__panel {
  position: relative;
  background: var(--sj-zone-member);
  border: 1px solid var(--sj-line);
  border-radius: var(--sj-radius);
  padding: 20px 18px 18px 24px;
  overflow: hidden;
}

.page-faq .faq-hero__panel::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--sj-spring), var(--sj-summer-2), var(--sj-autumn), var(--sj-winter));
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--sj-text);
}

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

.page-faq .faq-steps li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 16px;
  color: var(--sj-text);
}

.page-faq .faq-steps li .sj-mono {
  font-size: 13px;
  color: var(--sj-autumn);
}

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

.page-faq .faq-hero__panel-note .sj-mono {
  color: var(--sj-spring);
  font-size: 15px;
}

/* ---------- 过滤条 ---------- */
.page-faq .faq-filter {
  display: grid;
  gap: 12px;
  background: var(--sj-surface);
  border: 1px solid var(--sj-line);
  border-radius: var(--sj-radius);
  padding: 18px 18px 20px;
  margin-bottom: 40px;
}

.page-faq .faq-filter__title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--sj-text);
}

.page-faq .faq-filter__row {
  display: grid;
  gap: 10px;
}

.page-faq .faq-filter__input {
  width: 100%;
  box-sizing: border-box;
  background: var(--sj-ink);
  border: 1px solid var(--sj-line-strong);
  border-radius: var(--sj-pill);
  color: var(--sj-text);
  font-family: var(--sj-font-body);
  font-size: 15px;
  padding: 11px 18px;
}

.page-faq .faq-filter__input::placeholder {
  color: var(--sj-muted);
}

.page-faq .faq-filter__input:focus {
  outline: none;
  border-color: var(--sj-summer);
  box-shadow: 0 0 0 3px rgba(53, 214, 255, .18);
}

.page-faq .faq-filter__hint {
  font-size: 13px;
  color: var(--sj-muted);
}

/* ---------- 主体两列 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 30px;
}

.page-faq .faq-index {
  border-left: 1px solid var(--sj-line);
  padding-left: 16px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--sj-font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sj-muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 6px;
  border-radius: var(--sj-radius-sm);
  color: var(--sj-muted);
  font-size: 15px;
  text-decoration: none;
  transition: color .18s ease, background .18s ease;
}

.page-faq .faq-index__list a .sj-mono {
  font-size: 12px;
  color: var(--sj-line-strong);
}

.page-faq .faq-index__list a:hover {
  color: var(--sj-text);
  background: rgba(255, 111, 165, .1);
}

.page-faq .faq-index__list a:hover .sj-mono {
  color: var(--sj-spring-2);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-block {
  margin-bottom: 44px;
  scroll-margin-top: 112px;
  border-radius: 12px;
  transition: background .3s ease;
}

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

.page-faq .faq-block:target {
  background: linear-gradient(90deg, rgba(53, 214, 255, .07), rgba(5, 7, 12, 0) 62%);
}

.page-faq .faq-block--spring { --faq-accent: var(--sj-spring); }
.page-faq .faq-block--summer { --faq-accent: var(--sj-summer); }
.page-faq .faq-block--autumn { --faq-accent: var(--sj-autumn); }
.page-faq .faq-block--winter { --faq-accent: var(--sj-winter); }

.page-faq .faq-block__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--sj-line-strong);
}

.page-faq .faq-block__num {
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--faq-accent);
  flex: none;
}

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

.page-faq .faq-block__titles .sj-title-md {
  margin: 0 0 6px;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.15;
}

.page-faq .faq-block__sub {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--sj-muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-qa {
  border-bottom: 1px solid var(--sj-line);
}

.page-faq .faq-qa summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 15px 4px 15px 0;
  cursor: pointer;
  list-style: none;
  transition: padding-left .18s ease;
}

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

.page-faq .faq-qa summary::after {
  content: "+";
  flex: none;
  font-family: var(--sj-font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--faq-accent);
}

.page-faq .faq-qa[open] summary::after {
  content: "−";
}

.page-faq .faq-qa summary:hover {
  padding-left: 6px;
}

.page-faq .faq-qa summary:hover .faq-qa__q {
  color: var(--sj-summer);
}

.page-faq .faq-qa__q {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--sj-text);
  transition: color .18s ease;
}

.page-faq .faq-qa__body {
  padding: 0 34px 18px 0;
  animation: faq-unfold .22s ease;
}

.page-faq .faq-qa__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--sj-text);
}

.page-faq .faq-qa__body a {
  color: var(--sj-summer);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 255, .4);
}

.page-faq .faq-qa__body a:hover {
  color: var(--sj-winter);
}

@keyframes faq-unfold {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
}

.page-faq .faq-figure .sj-figure__media {
  border: 1px solid var(--sj-line);
  border-radius: var(--sj-radius);
  overflow: hidden;
  background: var(--sj-zone-press);
}

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

.page-faq .faq-figure .sj-figure__caption {
  margin-top: 10px;
  font-family: var(--sj-font-mono);
  font-size: 12px;
  color: var(--sj-muted);
}

/* ---------- 缩放示意 ---------- */
.page-faq .faq-scale {
  display: block;
  width: 100%;
  height: auto;
  margin: 20px 0 4px;
}

.page-faq .faq-scale__fill {
  fill: var(--sj-zone-nav);
}

.page-faq .faq-scale__frame {
  fill: none;
  stroke: var(--sj-line-strong);
  stroke-width: 1;
}

.page-faq .faq-scale__bar {
  fill: var(--sj-summer);
}

.page-faq .faq-scale__bar--dim {
  fill: var(--sj-muted);
  opacity: .45;
}

.page-faq .faq-scale__label {
  font-family: var(--sj-font-mono);
  font-size: 12px;
  fill: var(--sj-muted);
}

.page-faq .faq-scale__label--hi {
  fill: var(--sj-autumn);
}

/* ---------- 联系块 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 12px;
  margin-top: 22px;
  background: var(--sj-zone-nav);
  border: 1px solid var(--sj-line);
  border-radius: var(--sj-radius);
  padding: 18px;
}

.page-faq .faq-contact__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--sj-line);
}

.page-faq .faq-contact__value {
  font-size: 15px;
  color: var(--sj-winter);
  word-break: break-all;
}

.page-faq .faq-contact__copy {
  margin-left: auto;
  padding: 6px 14px;
  border: 1px solid var(--sj-line-strong);
  border-radius: var(--sj-pill);
  background: transparent;
  color: var(--sj-text);
  font-family: var(--sj-font-body);
  font-size: 13px;
  cursor: pointer;
  transition: border-color .18s ease, color .18s ease;
}

.page-faq .faq-contact__copy:hover {
  border-color: var(--sj-spring);
  color: var(--sj-spring);
}

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

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 22px 24px 30px;
  }

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

  .page-faq .faq-filter__hint {
    white-space: nowrap;
  }

  .page-faq .faq-contact {
    padding: 22px 24px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 24px 28px 34px;
    margin-bottom: 40px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: end;
    gap: 36px;
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-idx) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1440px) {
  .page-faq .faq-body {
    gap: 64px;
  }

  .page-faq .faq-qa summary {
    padding: 18px 4px 18px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-qa__body {
    animation: none;
  }

  .page-faq .faq-quick__chip,
  .page-faq .faq-qa summary {
    transition: none;
  }
}
<<<END>>>