.page-faq {
  --faq-rail: 264px;
  --faq-panel-bg: rgba(18, 51, 43, 0.6);
  --faq-panel-bg-open: rgba(18, 51, 43, 0.96);
}

.page-faq .faq-hero {
  padding-top: clamp(16px, 3vw, 34px);
}

.page-faq .faq-hero-frame {
  margin-top: clamp(14px, 2.4vw, 26px);
  padding: clamp(20px, 3.4vw, 44px);
  background:
    radial-gradient(120% 90% at 6% 0%, rgba(61, 242, 200, 0.12), transparent 56%),
    linear-gradient(180deg, var(--ink-2), var(--ink) 72%);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(22px, 3vw, 44px);
}

.page-faq .faq-hero-copy h1 {
  margin: 0.55rem 0 0;
  font-family: var(--font-narrow);
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: 0.02em;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-hero-copy .lede {
  margin-top: 1rem;
  max-width: 46ch;
  color: var(--paper);
  opacity: 0.9;
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-faq .faq-stat {
  padding: 14px 12px;
  background: var(--ink);
}

.page-faq .faq-stat-label {
  font-size: 0.7rem;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--ash);
}

.page-faq .faq-stat-num {
  display: block;
  margin: 8px 0 0;
  font-size: clamp(1.35rem, 4vw, 1.9rem);
  line-height: 1;
  color: var(--pulse);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-workbench {
  padding-top: clamp(32px, 5vw, 66px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
}

/* ---------- 侧栏 ---------- */
.page-faq .faq-side .eyebrow {
  margin-bottom: 12px;
}

.page-faq .faq-nav ol {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-nav li {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-nav a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 2px;
  color: var(--paper);
  text-decoration: none;
  font-size: 0.95rem;
  line-height: 1.5;
  transition: color 0.24s ease;
}

.page-faq .faq-nav a .mono {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--ash);
  transition: color 0.24s ease;
}

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

.page-faq .faq-nav a:hover .mono,
.page-faq .faq-nav a:focus-visible .mono {
  color: var(--pulse-soft);
}

.page-faq .faq-filter {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-filter-label {
  margin: 0 0 10px;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--ash);
}

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

.page-faq .faq-filter-row .tag {
  padding: 5px 11px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--ash);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 0;
  cursor: pointer;
  transition: color 0.22s ease, border-color 0.22s ease, background-color 0.22s ease;
}

.page-faq .faq-filter-row .tag:hover,
.page-faq .faq-filter-row .tag:focus-visible {
  color: var(--pulse-soft);
  border-color: var(--pulse-soft);
}

.page-faq .faq-filter-row .tag[aria-pressed="true"] {
  color: var(--ink);
  background: var(--pulse);
  border-color: var(--pulse);
}

/* ---------- 章节 ---------- */
.page-faq .faq-chapter + .faq-chapter {
  margin-top: clamp(42px, 6vw, 80px);
}

.page-faq .faq-chapter .chapter-head {
  display: grid;
  gap: 8px 20px;
  align-items: start;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-chapter .chapter-num {
  font-size: clamp(1.5rem, 4.4vw, 2.3rem);
  line-height: 1;
  color: var(--pulse);
  letter-spacing: 0.04em;
}

.page-faq .faq-chapter .chapter-title {
  margin: 0;
  font-family: var(--font-narrow);
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  letter-spacing: 0.08em;
  color: var(--paper);
}

.page-faq .faq-chapter-lead {
  margin: 12px 0 0;
  max-width: 54ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--ash);
}

/* ---------- 三条路径 ---------- */
.page-faq .faq-paths {
  display: grid;
  gap: clamp(12px, 2vw, 18px);
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-path {
  position: relative;
  padding: 20px 18px 22px;
  background: linear-gradient(180deg, rgba(18, 51, 43, 0.92), rgba(11, 31, 26, 0.92));
  border: 1px solid var(--line);
  border-top: 2px solid var(--pulse);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-faq .faq-path-idx {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--pulse);
}

.page-faq .faq-path h3 {
  margin: 10px 0 8px;
  font-family: var(--font-narrow);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .faq-path p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ash);
}

.page-faq .faq-path a,
.page-faq .faq-chapter-lead a {
  color: var(--pulse-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: clamp(22px, 3.2vw, 34px);
}

.page-faq .faq-item {
  position: relative;
  background: var(--faq-panel-bg);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: background-color 0.26s ease, border-color 0.26s ease;
}

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

.page-faq .faq-item:has(.disclosure-trigger[aria-expanded="true"]) {
  background: var(--faq-panel-bg-open);
  border-color: var(--pulse);
}

.page-faq .faq-item .disclosure-trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px 18px;
  background: none;
  border: 0;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 0.98rem;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: color 0.24s ease;
}

.page-faq .faq-q-num {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ash);
  transition: color 0.24s ease;
}

.page-faq .faq-q-text {
  transition: color 0.24s ease;
}

.page-faq .faq-item .disclosure-trigger:hover .faq-q-text,
.page-faq .faq-item .disclosure-trigger:focus-visible .faq-q-text {
  color: var(--pulse-soft);
}

.page-faq .faq-item .disclosure-trigger[aria-expanded="true"] .faq-q-text {
  color: var(--pulse);
}

.page-faq .faq-item .disclosure-trigger[aria-expanded="true"] .faq-q-num {
  color: var(--pulse);
}

.page-faq .faq-q-mark {
  width: 9px;
  height: 9px;
  border: 1px solid var(--ash);
  border-radius: 50%;
  background: transparent;
  transition: background-color 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}

.page-faq .faq-item .disclosure-trigger[aria-expanded="true"] .faq-q-mark {
  background: var(--pulse);
  border-color: var(--pulse);
  box-shadow: 0 0 0 5px rgba(61, 242, 200, 0.14);
}

.page-faq .faq-item .disclosure-panel {
  padding: 0 18px 20px;
  color: var(--paper);
  font-size: 0.93rem;
  line-height: 1.78;
  opacity: 0.92;
}

.page-faq .faq-item .disclosure-panel p {
  margin: 0;
  max-width: 62ch;
}

.page-faq .faq-item .disclosure-panel a {
  color: var(--pulse-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 章节配图 ---------- */
.page-faq .faq-injury-media {
  position: relative;
  max-width: 520px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-faq .faq-injury-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 结尾行动条 ---------- */
.page-faq .faq-cta {
  display: grid;
  gap: 16px;
  margin-top: clamp(26px, 4vw, 40px);
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--pulse);
  background: linear-gradient(90deg, rgba(61, 242, 200, 0.08), rgba(11, 31, 26, 0) 62%);
}

.page-faq .faq-cta-text {
  margin: 0;
  max-width: 52ch;
  color: var(--paper);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-faq .faq-cta .btn {
  justify-self: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-chapter .chapter-head {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: baseline;
  }

  .page-faq .faq-item .disclosure-panel {
    padding-left: 58px;
    padding-right: 24px;
  }

  .page-faq .faq-item .disclosure-trigger {
    padding: 18px 24px;
  }
}

@media (min-width: 780px) {
  .page-faq .faq-hero-media {
    aspect-ratio: 8 / 3;
  }

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

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: center;
  }

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

  .page-faq .faq-cta .btn {
    justify-self: end;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
    align-self: start;
    padding-right: 20px;
    border-right: 1px solid var(--line);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-nav a,
  .page-faq .faq-filter-row .tag,
  .page-faq .faq-item,
  .page-faq .faq-q-mark,
  .page-faq .faq-item .disclosure-trigger {
    transition: none;
  }
}