.page-faq {
  --faq-rail-w: 248px;
  --faq-shadow-hover: 0 18px 40px -30px rgba(21, 23, 25, 0.62);
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(20px, 4vw, 40px) clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  align-items: center;
}

.page-faq .faq-hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  max-width: 18em;
}

.page-faq .faq-lede {
  font-family: var(--font-serif);
  font-size: clamp(15px, 2.6vw, 18px);
  line-height: 1.85;
  color: var(--ink-70);
  margin: 18px 0 0;
  max-width: 34em;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero-panel {
  position: relative;
  padding: clamp(20px, 3.6vw, 30px);
  border-radius: var(--radius-l) var(--radius-s) var(--radius-l) var(--radius-s);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(63, 124, 138, 0.26), transparent 62%),
    radial-gradient(110% 90% at 0% 100%, rgba(233, 162, 59, 0.24), transparent 60%),
    linear-gradient(150deg, var(--cold), var(--haze));
  border: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-faq .faq-hero-panel::before {
  content: "";
  position: absolute;
  inset: auto -18% -46% auto;
  width: 62%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(210, 59, 34, 0.16), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-panel-title {
  position: relative;
  margin: 0 0 16px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--teal-deep);
  font-family: var(--font-mono);
}

.page-faq .faq-panel-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-panel-list li {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-faq .faq-panel-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(19px, 3.4vw, 24px);
  color: var(--flame-deep);
  letter-spacing: -0.01em;
}

.page-faq .faq-panel-text {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-70);
}

/* ---------- 目录区 ---------- */
.page-faq .faq-directory {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-directory-head {
  max-width: 42em;
}

.page-faq .faq-sec-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4.2vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 12px 0 0;
}

.page-faq .faq-directory-lede {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-faq .faq-directory-figure {
  margin: clamp(24px, 4vw, 36px) 0 clamp(20px, 3vw, 30px);
  border-radius: var(--radius-l) var(--radius-s) var(--radius-l) var(--radius-s);
  overflow: hidden;
  background: var(--cold);
}

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

.page-faq .faq-directory-figure .media-caption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--ink-60);
  background: var(--paper);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-cat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-cat {
  display: grid;
  gap: 8px;
  padding: 20px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: var(--paper);
  text-decoration: none;
  color: inherit;
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--faq-shadow-hover);
  border-color: rgba(210, 59, 34, 0.42);
}

.page-faq .faq-cat:focus-visible {
  outline: 2px solid var(--flame);
  outline-offset: 3px;
  background: var(--cold);
}

.page-faq .faq-cat-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--flame-deep);
}

.page-faq .faq-cat-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .faq-cat-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-60);
}

.page-faq .faq-cat .tag {
  justify-self: start;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-answers-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 44px);
  align-items: start;
}

.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--teal-deep);
  text-transform: uppercase;
}

.page-faq .faq-toc {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-toc .index-link {
  flex: 1 1 auto;
}

.page-faq .faq-rail-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-60);
}

.page-faq .faq-groups {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 108px;
  padding: 0;
}

.page-faq .faq-group--archive {
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--radius-l) var(--radius-s) var(--radius-l) var(--radius-s);
  background: linear-gradient(170deg, var(--haze), rgba(216, 229, 231, 0.45));
  border: 1px solid rgba(63, 124, 138, 0.18);
}

.page-faq .faq-group-head {
  display: grid;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--flame);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3.4vw, 27px);
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-faq .faq-group-lede {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-70);
}

/* 图例 */
.page-faq .faq-legend {
  margin: 18px 0 4px;
  padding: 12px 14px 6px;
  border-radius: var(--radius-m);
  background: var(--cold);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-legend svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .legend-line {
  stroke: var(--line);
  stroke-width: 1.5;
}

.page-faq .legend-dot--hot {
  fill: var(--flame);
}

.page-faq .legend-dot--normal {
  fill: var(--teal);
}

.page-faq .legend-dot--done {
  fill: var(--green);
}

.page-faq .legend-label {
  font-family: var(--font-body);
  font-size: 11px;
  fill: var(--teal-deep);
  letter-spacing: 0.04em;
}

.page-faq .faq-legend .media-caption {
  margin-top: 8px;
  font-size: 12px;
  color: var(--ink-60);
}

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

.page-faq .faq-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  position: relative;
}

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

.page-faq .faq-q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.1;
  color: var(--flame);
  transition: transform 0.24s var(--ease);
}

.page-faq .faq-item[open] > .faq-q::after {
  content: "−";
  transform: rotate(180deg);
}

.page-faq .faq-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--teal);
  padding-top: 2px;
}

.page-faq .faq-q-text {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.65;
  letter-spacing: 0;
  border-radius: var(--radius-s);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--flame);
  outline-offset: 2px;
  background: var(--cold);
}

.page-faq .faq-a {
  padding: 0 0 18px 32px;
  margin-left: 2px;
  border-left: 1px dashed var(--line);
  padding-left: 18px;
  color: var(--ink-70);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-a p {
  margin: 0;
}

.page-faq .faq-a a {
  color: var(--teal-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

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

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  background:
    radial-gradient(90% 80% at 100% 0%, rgba(63, 124, 138, 0.42), transparent 58%),
    radial-gradient(70% 70% at 0% 100%, rgba(210, 59, 34, 0.26), transparent 62%),
    var(--ink);
  color: var(--paper);
  scroll-margin-top: 96px;
}

.page-faq .faq-support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-faq .faq-eyebrow--light {
  color: var(--amber);
}

.page-faq .faq-support-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  margin: 12px 0 0;
  color: var(--paper);
}

.page-faq .faq-support-lede {
  margin: 16px 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(251, 248, 242, 0.76);
}

.page-faq .faq-contact {
  margin: 22px 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(251, 248, 242, 0.16);
}

.page-faq .faq-contact-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(251, 248, 242, 0.16);
}

.page-faq .faq-contact-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-faq .faq-contact-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-support-note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(251, 248, 242, 0.7);
  max-width: 34em;
}

.page-faq .faq-support-note a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-support-copy .btn {
  margin-top: 22px;
}

.page-faq .faq-support-figure {
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: rgba(251, 248, 242, 0.06);
}

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

.page-faq .faq-support-figure .media-caption {
  padding: 12px 16px;
  font-size: 12px;
  color: rgba(251, 248, 242, 0.66);
  border-top: 1px solid rgba(251, 248, 242, 0.14);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-contact-row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }

  .page-faq .faq-answers-grid {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-toc {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
    border-left: 1px solid var(--line);
    padding-left: 2px;
  }

  .page-faq .faq-toc .index-link {
    flex: 0 0 auto;
  }

  .page-faq .faq-support-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }

  .page-faq .faq-group-head {
    gap: 10px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-cat-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-cat {
    padding: 22px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-q::after {
    transition: none;
  }

  .page-faq .faq-cat:hover,
  .page-faq .faq-cat:focus-visible {
    transform: none;
  }
}
<<<END>>>