.page-faq {
  --faq-index-w: 252px;
  --faq-ink-soft: #464C66;
  --faq-paper-line: #C9C3B2;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(18px, 3vw, 30px) clamp(36px, 5vw, 68px);
  border-bottom: var(--border);
  background-image:
    linear-gradient(to right, rgba(46, 60, 120, 0.28) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(46, 60, 120, 0.28) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
  overflow: hidden;
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-size: clamp(2.05rem, 6.2vw, 4.1rem);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -0.03em;
  max-width: 17ch;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(244, 241, 232, 0.8);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-hero__media {
  margin: 0;
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-stack);
  background: var(--indigo-900);
  overflow: hidden;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

/* ---------- 三步自查 ---------- */
.page-faq .selfcheck-head {
  display: grid;
  gap: 28px;
}

.page-faq .selfcheck-title {
  margin: 12px 0 0;
  font-size: clamp(1.45rem, 3.4vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  max-width: 22ch;
}

.page-faq .selfcheck-note {
  margin: 16px 0 0;
  max-width: 56ch;
  color: var(--muted);
  line-height: 1.85;
  font-size: 15px;
}

.page-faq .selfcheck-figure {
  margin: 0;
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-stack);
  background: var(--indigo-900);
  overflow: hidden;
}

.page-faq .selfcheck-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-faq .selfcheck-figure figcaption {
  padding: 10px 12px;
  border-top: var(--border);
  background: var(--indigo-900);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .steps {
  list-style: none;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  gap: 26px;
}

.page-faq .step {
  position: relative;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-faq .step__dot {
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold-500);
  box-shadow: 0 0 0 4px rgba(242, 178, 62, 0.16);
}

.page-faq .step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-500);
}

.page-faq .step__title {
  margin: 6px 0 8px;
  font-size: clamp(1.02rem, 1.8vw, 1.22rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .step__text {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 主体：问题列表 + 索引 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(30px, 4vw, 48px);
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-faq .chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--paper);
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .chip:hover,
.page-faq .chip:focus-visible {
  background: var(--gold-500);
  border-color: var(--gold-500);
  color: var(--ink);
}

.page-faq .faq-group {
  margin-bottom: clamp(34px, 5vw, 56px);
  scroll-margin-top: 140px;
}

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

.page-faq .faq-group__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.22rem, 2.4vw, 1.58rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.page-faq .faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(19, 28, 70, 0.55);
  overflow: hidden;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(242, 178, 62, 0.5);
  background: rgba(19, 28, 70, 0.9);
}

.page-faq .faq-item__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 15px 14px;
  list-style: none;
  cursor: pointer;
  transition: background 0.2s var(--ease);
}

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

.page-faq .faq-item__summary:hover {
  background: rgba(28, 42, 94, 0.7);
}

.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--gold-300);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-500);
}

.page-faq .faq-item__q {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}

.page-faq .faq-item__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.1;
  color: var(--gold-300);
}

.page-faq .faq-item[open] .faq-item__summary::after {
  content: "−";
  color: var(--gold-500);
}

.page-faq .faq-item__body {
  padding: 0 14px 18px;
}

.page-faq .faq-item__body p {
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid var(--turquoise);
  font-size: 15px;
  line-height: 1.9;
  color: rgba(244, 241, 232, 0.82);
  overflow-wrap: anywhere;
}

.page-faq .faq-item__body a {
  color: var(--gold-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__body a:hover {
  color: var(--gold-500);
}

/* ---------- 索引 ---------- */
.page-faq .faq-index {
  padding: 18px 16px;
  border: var(--border);
  border-radius: var(--radius);
  background: rgba(19, 28, 70, 0.5);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--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: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--paper);
  text-decoration: none;
  font-size: 14px;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-left-color: var(--gold-500);
  background: rgba(28, 42, 94, 0.8);
  color: var(--gold-300);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-index__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-human {
  padding-block: clamp(36px, 6vw, 76px);
  border-top: var(--border);
  background: linear-gradient(180deg, rgba(19, 28, 70, 0.5), rgba(10, 17, 48, 0));
}

.page-faq .faq-human__card {
  padding: clamp(22px, 4vw, 44px);
  border-radius: var(--radius);
  box-shadow: 6px 6px 0 rgba(46, 60, 120, 0.7);
  display: grid;
  gap: 28px;
  color: var(--ink);
}

.page-faq .faq-human__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: #8A6D1F;
}

.page-faq .faq-human__title {
  margin: 10px 0 0;
  font-size: clamp(1.35rem, 3vw, 1.95rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--ink);
}

.page-faq .faq-human__text {
  margin: 14px 0 20px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .human-contacts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .human-contacts li {
  display: grid;
  gap: 4px;
  padding: 12px 0 12px 14px;
  border-left: 3px solid var(--gold-500);
}

.page-faq .human-contacts__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: #8A6D1F;
}

.page-faq .human-contacts__value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-faq .human-contacts__note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-item__summary {
    padding: 16px 18px;
    gap: 14px;
  }

  .page-faq .faq-item__q {
    font-size: 17px;
  }

  .page-faq .faq-item__body {
    padding: 0 18px 20px;
  }

  .page-faq .faq-item__body p {
    padding-left: 16px;
    font-size: 15.5px;
  }
}

@media (min-width: 760px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .selfcheck-head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: 48px;
  }

  .page-faq .faq-human__card {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
    gap: 48px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) var(--faq-index-w);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-faq .faq-content {
    padding-left: clamp(0px, 2.5vw, 44px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 132px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .chip,
  .page-faq .faq-item,
  .page-faq .faq-item__summary,
  .page-faq .faq-index__list a {
    transition: none;
  }
}