.page-faq {
  --faq-ink: var(--ink-900);
  --faq-paper: var(--paper);
  --faq-line: rgba(255, 255, 255, 0.08);
  --faq-cyan: var(--electric-cyan);
  --faq-orange: var(--neon-orange);
  --faq-gold: var(--warm-gold);
  --faq-mint: var(--mint-signal);
  --faq-rose: var(--alert-rose);
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
}

.page-faq .container {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-faq .section {
  padding: var(--section-y) 0;
}

.page-faq .section--paper {
  background: var(--paper);
  color: var(--ink-900);
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faq-cyan);
  margin: 0 0 0.6rem;
}

.page-faq .section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.25;
  margin: 0 0 0.75rem;
  color: inherit;
}

.page-faq .section-sub,
.page-faq .lede {
  color: var(--slate-400);
  line-height: 1.7;
  margin: 0 0 1rem;
}

.page-faq .section--paper .section-sub,
.page-faq .section--paper .lede {
  color: var(--ink-700);
}

.page-faq .accent {
  color: var(--faq-cyan);
  font-style: normal;
}

.page-faq .mono {
  font-family: var(--font-mono);
}

/* 面包屑 */
.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--slate-400);
  margin-bottom: 1.5rem;
}

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

.page-faq .breadcrumb-link:hover {
  text-decoration: underline;
}

/* Hero */
.page-faq .faq-hero {
  background:
    radial-gradient(circle at 15% 20%, rgba(0, 229, 255, 0.12), transparent 55%),
    radial-gradient(circle at 85% 10%, rgba(255, 138, 0, 0.1), transparent 50%),
    var(--ink-900);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: calc(var(--gap) * 2);
  align-items: start;
}

.page-faq .faq-hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.2;
  margin: 0 0 1rem;
  color: var(--pure-white);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.page-faq .faq-hero-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.page-faq .faq-hero-facts li {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.page-faq .faq-fact-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--faq-cyan);
}

.page-faq .faq-fact-label {
  font-size: 0.82rem;
  color: var(--slate-400);
  line-height: 1.5;
}

/* 布局 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: calc(var(--gap) * 2);
  align-items: start;
}

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

.page-faq .faq-aside {
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
}

.page-faq .faq-toc {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-left: 2px solid var(--faq-line);
  padding-left: 1rem;
}

.page-faq .toc-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-400);
  margin: 0 0 0.5rem;
}

.page-faq .toc-link {
  color: var(--paper-dim);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.25rem 0;
  transition: color var(--ease);
}

.page-faq .toc-link:hover,
.page-faq .toc-link.is-active {
  color: var(--faq-cyan);
}

/* 三步自检 */
.page-faq .faq-triage {
  margin-bottom: calc(var(--gap) * 2);
}

.page-faq .faq-triage-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  padding: calc(var(--gap) * 1.5);
}

.page-faq .faq-triage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: calc(var(--gap) * 1.5);
  align-items: start;
}

.page-faq .faq-lead {
  color: var(--slate-400);
  line-height: 1.7;
  margin: 0 0 1.25rem;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: 1rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: rgba(0, 229, 255, 0.04);
}

.page-faq .faq-step-node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--r-pill);
  background: var(--faq-cyan);
  color: var(--ink-900);
  font-weight: 700;
  font-size: 0.9rem;
}

.page-faq .faq-step-body .step-title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  color: var(--pure-white);
}

.page-faq .faq-step-body .step-text {
  margin: 0;
  color: var(--slate-400);
  line-height: 1.65;
  font-size: 0.92rem;
}

.page-faq .faq-triage-media {
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--faq-line);
}

.page-faq .faq-triage-media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .media-caption {
  font-size: 0.8rem;
  color: var(--slate-400);
  padding: 0.6rem 0.8rem;
  background: rgba(0, 0, 0, 0.25);
  margin: 0;
}

/* 分类 Tab */
.page-faq .faq-board {
  margin-bottom: calc(var(--gap) * 2);
}

.page-faq .faq-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.page-faq .faq-tab {
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--faq-line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--paper-dim);
  cursor: pointer;
  transition: all var(--ease);
}

.page-faq .faq-tab:hover {
  border-color: var(--faq-cyan);
  color: var(--faq-cyan);
}

.page-faq .faq-tab.is-active {
  background: var(--faq-cyan);
  border-color: var(--faq-cyan);
  color: var(--ink-900);
  font-weight: 600;
}

.page-faq .faq-panel {
  display: none;
}

.page-faq .faq-panel.is-visible {
  display: block;
}

/* 折叠面板 */
.page-faq .faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-faq .accordion-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.page-faq .faq-acc-heading {
  margin: 0;
}

.page-faq .accordion-trigger {
  width: 100%;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
  padding: 1rem;
  background: transparent;
  border: 0;
  color: var(--pure-white);
  font-family: var(--font-body);
  font-size: 0.98rem;
  text-align: left;
  cursor: pointer;
}

.page-faq .faq-code {
  font-size: 0.75rem;
  color: var(--faq-orange);
  letter-spacing: 0.06em;
}

.page-faq .faq-q {
  line-height: 1.5;
}

.page-faq .accordion-icon {
  width: 0.7rem;
  height: 0.7rem;
  border-right: 2px solid var(--faq-cyan);
  border-bottom: 2px solid var(--faq-cyan);
  transform: rotate(45deg);
  transition: transform var(--ease);
}

.page-faq .accordion-item.is-active .accordion-icon {
  transform: rotate(-135deg);
}

.page-faq .accordion-panel {
  display: none;
  padding: 0 1rem 1rem;
}

.page-faq .accordion-item.is-active .accordion-panel {
  display: block;
}

.page-faq .faq-answer {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-faq .faq-line {
  margin: 0;
  color: var(--slate-400);
  line-height: 1.7;
  font-size: 0.92rem;
}

.page-faq .faq-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--faq-cyan);
  border: 1px solid rgba(0, 229, 255, 0.4);
  border-radius: var(--r-sm);
  padding: 0.05rem 0.4rem;
  margin-right: 0.5rem;
}

.page-faq .faq-fix {
  margin: 0.25rem 0 0;
  padding-left: 1.2rem;
  color: var(--paper-dim);
  line-height: 1.7;
  font-size: 0.92rem;
}

.page-faq .faq-fix li {
  margin-bottom: 0.35rem;
}

.page-faq .faq-ref {
  margin: 0.5rem 0 0;
  font-size: 0.82rem;
  color: var(--faq-gold);
  border-left: 2px solid var(--faq-gold);
  padding-left: 0.6rem;
}

.page-faq .faq-load-media {
  margin: 0 0 0.75rem;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--faq-line);
}

.page-faq .faq-load-media img {
  display: block;
  width: 100%;
  height: auto;
}

/* 人工联系 */
.page-faq .faq-help-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: calc(var(--gap) * 2);
  align-items: start;
}

.page-faq .faq-help-copy p {
  color: var(--ink-700);
  line-height: 1.7;
}

.page-faq .faq-subhead {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 1.5rem 0 0.75rem;
  color: var(--ink-900);
}

.page-faq .faq-prepare {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--ink-700);
  line-height: 1.8;
}

.page-faq .faq-channels {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-faq .faq-channel {
  background: var(--pure-white);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--r-md);
  padding: 1rem;
}

.page-faq .faq-channel--neon {
  border-color: var(--faq-cyan);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.25);
}

.page-faq .faq-channel .card-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}

.page-faq .faq-channel .card-title {
  margin: 0;
  font-size: 1.05rem;
  color: var(--ink-900);
}

.page-faq .faq-channel .card-body p {
  margin: 0;
  color: var(--ink-700);
  line-height: 1.65;
  font-size: 0.92rem;
}

.page-faq .faq-channel .card-foot {
  margin-top: 0.75rem;
}

.page-faq .faq-channel-meta {
  font-size: 0.85rem;
  color: var(--ink-800);
}

.page-faq .chip {
  display: inline-block;
  font-size: 0.72rem;
  padding: 0.15rem 0.55rem;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
}

.page-faq .chip--neon {
  background: rgba(0, 229, 255, 0.15);
  color: #007a8a;
}

.page-faq .chip--cyan {
  background: rgba(0, 229, 255, 0.12);
  color: #006b78;
}

.page-faq .chip--gold {
  background: rgba(255, 184, 0, 0.18);
  color: #8a6100;
}

/* 反馈 */
.page-faq .faq-feedback-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  padding: calc(var(--gap) * 1.5);
}

.page-faq .faq-feedback-box p {
  color: var(--slate-400);
  line-height: 1.7;
}

.page-faq .faq-format {
  list-style: none;
  margin: 1rem 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.page-faq .faq-format li {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-sm);
  padding: 0.6rem 0.8rem;
  color: var(--paper-dim);
  font-size: 0.9rem;
}

.page-faq .faq-format-key {
  color: var(--faq-cyan);
  margin-right: 0.5rem;
  font-size: 0.78rem;
}

.page-faq .faq-feedback-note {
  color: var(--faq-gold) !important;
  font-size: 0.9rem;
}

.page-faq .faq-feedback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

/* 按钮基础（若共享类未覆盖） */
.page-faq .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: 0.92rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--ease);
}

.page-faq .btn--primary {
  background: var(--faq-cyan);
  color: var(--ink-900);
  font-weight: 600;
}

.page-faq .btn--primary:hover {
  background: var(--pure-white);
}

.page-faq .btn--ghost {
  background: transparent;
  border-color: var(--faq-line);
  color: var(--paper);
}

.page-faq .btn--ghost:hover {
  border-color: var(--faq-cyan);
  color: var(--faq-cyan);
}

.page-faq .btn--quiet {
  background: transparent;
  border-color: rgba(0, 0, 0, 0.15);
  color: var(--ink-900);
}

.page-faq .btn--quiet:hover {
  border-color: var(--faq-cyan);
  color: #006b78;
}

/* 响应式 */
@media (max-width: 960px) {
  .page-faq .faq-hero-grid,
  .page-faq .faq-layout,
  .page-faq .faq-triage-grid,
  .page-faq .faq-help-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-aside {
    position: static;
  }

  .page-faq .faq-toc {
    flex-direction: row;
    flex-wrap: wrap;
    border-left: 0;
    border-top: 2px solid var(--faq-line);
    padding-left: 0;
    padding-top: 0.75rem;
  }
}

@media (max-width: 560px) {
  .page-faq .faq-hero-facts,
  .page-faq .faq-format {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .accordion-trigger {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-faq .faq-code {
    grid-column: 1 / -1;
  }
}