.page-faq {
  --faq-shadow: 6px 6px 0 rgba(198, 205, 212, 0.14);
  --faq-offset: clamp(1rem, 4vw, 2.25rem);
  background: var(--ink);
  color: var(--bone);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-faq .breadcrumb a {
  color: var(--silver);
  text-decoration: none;
  transition: color 0.18s ease;
}

.page-faq .breadcrumb a:hover {
  color: var(--orange);
}

.page-faq .breadcrumb-sep {
  color: var(--rock);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(2rem, 5vw, 3.25rem);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.page-faq .faq-hero-media {
  position: relative;
}

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

.page-faq .faq-hero-body {
  max-width: 42rem;
}

.page-faq .faq-hero-body .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  color: var(--orange);
  margin: 0 0 0.9rem;
}

.page-faq h1 {
  margin: 0 0 1.1rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.75rem, 5.6vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-faq .faq-hero-body .lead {
  margin: 0 0 1.5rem;
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  line-height: 1.8;
  color: var(--silver);
  max-width: 38rem;
}

.page-faq .faq-quicklinks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* ---------- 问题标签条 ---------- */
.page-faq .faq-jumpbar {
  position: sticky;
  top: calc(var(--header-h) + 0.25rem);
  z-index: 20;
  padding: 0.6rem 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(10, 26, 43, 0.97), rgba(10, 26, 43, 0.85));
  backdrop-filter: blur(8px);
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-jump-inner {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-jump-inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-jump {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--silver);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-jump-idx {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--rock);
  transition: color 0.18s ease;
}

.page-faq .faq-jump:hover {
  color: var(--bone);
  border-color: var(--orange);
}

.page-faq .faq-jump.is-current,
.page-faq .faq-jump[aria-current="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.page-faq .faq-jump.is-current .faq-jump-idx,
.page-faq .faq-jump[aria-current="true"] .faq-jump-idx {
  color: rgba(10, 26, 43, 0.68);
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  padding: clamp(1.75rem, 4.5vw, 3rem) 0;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--header-h) + 5rem);
}

.page-faq .faq-block:first-of-type {
  border-top: none;
}

.page-faq .faq-block-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .faq-block-head {
  margin-bottom: clamp(1.25rem, 3vw, 1.9rem);
  padding-left: 1rem;
  border-left: 3px solid var(--orange);
}

.page-faq .faq-block-head .eyebrow {
  margin: 0 0 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--clay);
}

.page-faq .faq-block-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.35rem, 3.6vw, 2.05rem);
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--bone);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.page-faq .faq-item {
  border: 1px solid var(--line-soft);
  border-left: 3px solid transparent;
  background: rgba(18, 41, 63, 0.42);
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

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

.page-faq .faq-item[open] {
  border-left-color: var(--orange);
  background: rgba(18, 41, 63, 0.82);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-q {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  font-weight: 700;
  line-height: 1.55;
  color: var(--bone);
  transition: color 0.18s ease;
}

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

.page-faq .faq-q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  padding-left: 0.5rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "–";
}

.page-faq .faq-item[open] .faq-q {
  color: var(--bone);
}

.page-faq .faq-q-index {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--clay);
  letter-spacing: 0.06em;
}

.page-faq .faq-a {
  padding: 0 1.1rem 1.15rem calc(1.1rem + 2.2rem);
  max-width: 66ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--silver);
}

/* ---------- 窄栏 ---------- */
.page-faq .faq-aside-card {
  padding: 1.2rem 1.25rem 1.35rem;
  border: 2px solid var(--silver);
  background: rgba(18, 41, 63, 0.62);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-aside-title {
  margin: 0 0 0.9rem;
  font-family: var(--font-head);
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--bone);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1rem;
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 4vw, 1.6rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--neon);
}

.page-faq .faq-stat-label {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.76rem;
  color: var(--rock);
}

.page-faq .faq-aside-num {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--orange);
}

.page-faq .faq-aside-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.page-faq .faq-aside-list li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.86rem;
  color: var(--silver);
}

.page-faq .faq-aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 5px;
  height: 5px;
  background: var(--neon);
}

.page-faq .faq-aside-card .annotation {
  margin: 0.9rem 0 0;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--rock);
}

.page-faq .faq-aside-card .link-arrow {
  display: inline-block;
  margin-top: 1rem;
  color: var(--orange);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.page-faq .faq-aside-card .link-arrow::after {
  content: " →";
  transition: margin-left 0.18s ease;
}

.page-faq .faq-aside-card .link-arrow:hover::after {
  margin-left: 0.25rem;
}

/* ---------- 联系方式 ---------- */
.page-faq .faq-contact-lines {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-contact-lines li {
  display: grid;
  gap: 0.18rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-contact-lines li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-contact-key {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--rock);
}

.page-faq .faq-contact-val {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--bone);
  word-break: break-word;
}

/* ---------- 准备步骤 ---------- */
.page-faq .faq-lead {
  margin: 0 0 1.5rem;
  max-width: 42rem;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--silver);
}

.page-faq .faq-steps {
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
  display: grid;
  gap: 1.1rem;
}

.page-faq .faq-step {
  position: relative;
  padding-left: 3.1rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-step:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-step::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.1rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--orange);
}

.page-faq .faq-step-title {
  margin: 0 0 0.3rem;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 800;
  color: var(--bone);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-closing {
  padding: 1.35rem 1.4rem;
  border: 2px solid var(--orange);
  background: rgba(200, 96, 58, 0.12);
}

.page-faq .faq-closing p {
  margin: 0 0 1.1rem;
  max-width: 40rem;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--bone);
}

/* ---------- 媒体 ---------- */
.page-faq .faq-mobile-media {
  margin-bottom: 0.9rem;
}

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

.page-faq .faq-aside .annotation {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-a {
    padding-right: 2rem;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-faq .faq-hero-media {
    order: -1;
    position: sticky;
    top: calc(var(--header-h) + 5.5rem);
  }

  .page-faq .faq-block-grid {
    grid-template-columns: minmax(0, 2.1fr) minmax(0, 0.9fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-faq .faq-block:nth-of-type(even) .faq-block-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 2.1fr);
  }

  .page-faq .faq-block:nth-of-type(even) .faq-aside {
    order: -1;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--header-h) + 5.5rem);
    align-self: start;
  }

  .page-faq .faq-jumpbar {
    top: calc(var(--header-h) + 0.5rem);
  }
}

@media (min-width: 1240px) {
  .page-faq .breadcrumb {
    padding-top: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump,
  .page-faq .faq-item,
  .page-faq .faq-q,
  .page-faq .faq-aside-card .link-arrow::after {
    transition: none;
  }
}