.page-faq {
  --faq-rule: rgba(10, 26, 47, .14);
  --faq-muted: #5A6474;
  --faq-hero-text: #D7E1EC;
  background: var(--warm-paper);
  color: var(--ink-text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 22px 0 0;
  background: var(--ink-navy);
  color: var(--warm-paper);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -12%;
  width: 58%;
  height: 70%;
  background: linear-gradient(150deg, rgba(255, 106, 26, .22), rgba(42, 111, 219, .06));
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb,
.page-faq .faq-hero .breadcrumb a {
  color: var(--on-navy-dim);
}

.page-faq .faq-hero .breadcrumb a {
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb a:hover,
.page-faq .faq-hero .breadcrumb a:focus-visible {
  color: var(--data-lime);
}

.page-faq .faq-hero__eyebrow {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--data-lime);
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 14px;
  max-width: 15ch;
  font-size: clamp(2.1rem, 7vw, 3.8rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--warm-paper);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 50ch;
  font-size: clamp(1rem, 2.2vw, 1.125rem);
  line-height: 1.8;
  color: var(--faq-hero-text);
}

.page-faq .faq-hero__media {
  margin: 30px 0 0;
  aspect-ratio: 8 / 3;
  overflow: hidden;
  border: var(--edge) solid var(--warm-paper);
  border-bottom: 0;
  background: var(--mid-navy);
  box-shadow: var(--shadow-hard-orange);
}

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

/* ---------- 分类索引条 ---------- */
.page-faq .faq-jump {
  padding: 14px 0;
  background: var(--paper-white);
  border-bottom: var(--edge) solid var(--ink-navy);
}

.page-faq .faq-jump .idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--pulse-orange);
}

.page-faq .faq-jump ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--ink-navy);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .15s var(--ease), border-color .15s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--pulse-orange);
  border-bottom-color: var(--pulse-orange);
}

.page-faq .faq-jump a[data-spy-current] {
  color: var(--pulse-orange);
  border-bottom-color: var(--pulse-orange);
}

/* ---------- 主体 ---------- */
.page-faq .faq-body {
  padding: 44px 0 72px;
}

.page-faq .faq-block {
  margin-bottom: 60px;
}

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

.page-faq .faq-block__head {
  padding-bottom: 16px;
  border-bottom: var(--edge) solid var(--ink-navy);
}

.page-faq .faq-block__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--pulse-orange);
}

.page-faq .faq-block h2 {
  margin: 8px 0 0;
  font-size: clamp(1.55rem, 4.6vw, 2.3rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.15;
  letter-spacing: -.015em;
  color: var(--ink-navy);
}

.page-faq .faq-block__note {
  margin: 10px 0 0;
  max-width: 60ch;
  font-size: .95rem;
  line-height: 1.7;
  color: var(--faq-muted);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  margin-top: 4px;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 18px 36px 18px 0;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink-navy);
  cursor: pointer;
  list-style: none;
  transition: color .15s var(--ease);
}

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

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--pulse-orange);
}

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1;
  color: var(--pulse-orange);
}

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

.page-faq .faq-q__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--pulse-orange);
}

.page-faq .faq-a {
  margin: 0 0 20px;
  padding: 2px 0 0 14px;
  border-left: var(--edge) solid var(--pulse-orange);
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 66ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-text);
}

.page-faq .faq-a p + p {
  margin-top: 10px;
}

.page-faq .faq-a a {
  color: var(--bright-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  counter-reset: faq-step;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  counter-increment: faq-step;
  position: relative;
  margin-bottom: 10px;
  padding-left: 40px;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--ink-text);
}

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

.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  color: var(--ink-navy);
  background: var(--pulse-orange);
  border: var(--edge) solid var(--ink-navy);
  box-shadow: 2px 2px 0 0 var(--ink-navy);
}

/* ---------- 纠错分栏 ---------- */
.page-faq .faq-fix-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 8px;
}

.page-faq .faq-fix-media {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: var(--edge) solid var(--ink-navy);
  background: var(--mid-navy);
  box-shadow: var(--shadow-hard);
}

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

.page-faq .faq-list--plain {
  margin-top: 0;
}

.page-faq .faq-list--plain .faq-item:first-child {
  border-top: 1px solid var(--faq-rule);
}

/* ---------- 帮助卡 ---------- */
.page-faq .faq-help-card {
  padding: 28px 22px;
  background: var(--ink-navy);
  color: var(--warm-paper);
  border: var(--edge) solid var(--ink-navy);
  box-shadow: var(--shadow-hard-orange);
}

.page-faq .faq-help-card .idx {
  display: block;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--data-lime);
}

.page-faq .faq-help-card h2 {
  margin: 10px 0 0;
  font-size: clamp(1.5rem, 4.4vw, 2.1rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--warm-paper);
}

.page-faq .faq-help-intro {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--faq-hero-text);
}

.page-faq .faq-help-lines {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help-lines li {
  padding: 14px 0;
  border-top: 1px solid var(--on-navy-line);
}

.page-faq .faq-help-key {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--data-lime);
}

.page-faq .faq-help-val {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3.6vw, 1.2rem);
  line-height: 1.4;
  color: var(--warm-paper);
  word-break: break-all;
}

.page-faq .faq-help-sub {
  display: block;
  margin-top: 6px;
  font-size: .875rem;
  line-height: 1.65;
  color: var(--on-navy-dim);
}

.page-faq .faq-help-cta {
  margin: 22px 0 0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .page-faq .faq-hero__media {
    aspect-ratio: 16 / 10;
    box-shadow: 4px 4px 0 0 var(--pulse-orange);
  }

  .page-faq .faq-item summary {
    gap: 10px;
    font-size: 1rem;
    padding-right: 30px;
  }

  .page-faq .faq-body {
    padding: 34px 0 56px;
  }

  .page-faq .faq-block {
    margin-bottom: 44px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero {
    padding-top: 28px;
  }

  .page-faq .faq-fix-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-fix-media {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-help-card {
    padding: 36px 34px;
  }

  .page-faq .faq-help-lines {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 34px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-a {
    padding-left: 18px;
  }

  .page-faq .faq-jump ul {
    gap: 6px 28px;
  }
}

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