.page-faq {
  background:
    radial-gradient(120% 55% at 82% 0%, rgba(35, 64, 95, 0.42) 0%, rgba(11, 36, 29, 0) 62%),
    var(--c-ink);
  color: var(--c-silver);
  padding-bottom: 64px;
}

.page-faq .breadcrumb a {
  color: var(--c-stone);
  text-decoration: none;
}

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

/* 首屏 */
.page-faq .faq-hero {
  padding: 24px 0 40px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: clamp(2.05rem, 7.4vw, 3.3rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--c-cream);
  text-wrap: balance;
}

.page-faq .faq-lead {
  margin: 0 0 24px;
  max-width: 52ch;
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(216, 228, 225, 0.82);
}

.page-faq .faq-hero-jumps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero-jumps a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.8rem;
  line-height: 1.2;
  color: var(--c-silver);
  text-decoration: none;
  background: rgba(17, 20, 19, 0.72);
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}

.page-faq .faq-hero-jumps a:hover,
.page-faq .faq-hero-jumps a:focus-visible {
  color: var(--c-coal);
  background: var(--c-orange);
  border-color: var(--c-orange);
}

.page-faq .faq-hero-figure {
  margin: 0;
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.42) contrast(1.06) brightness(0.92);
}

.page-faq .faq-hero-figure .figure-caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-stone);
}

/* 主体两栏 */
.page-faq .faq-body {
  display: grid;
  gap: 34px;
  padding-top: 34px;
}

/* 快速索引 */
.page-faq .faq-rail {
  padding: 18px 16px;
  background: rgba(17, 20, 19, 0.55);
  border: 1px solid var(--line);
}

.page-faq .faq-rail-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-silver);
}

.page-faq .faq-rail-group + .faq-rail-group {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-rail-label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-orange);
}

.page-faq .faq-rail-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail-list a {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 8px;
  padding: 7px 6px;
  font-size: 0.78rem;
  line-height: 1.45;
  color: rgba(216, 228, 225, 0.74);
  text-decoration: none;
  transition: color var(--t-fast), background var(--t-fast);
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  color: var(--c-cream);
  background: rgba(240, 138, 60, 0.13);
}

.page-faq .faq-rail-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-stone);
}

/* 问答组 */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--bar-h) + 24px);
}

.page-faq .faq-group + .faq-group {
  margin-top: 46px;
}

.page-faq .faq-group-head {
  display: grid;
  gap: 8px;
  margin-bottom: 4px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-orange);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 4vw, 1.9rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--c-cream);
}

.page-faq .faq-group-head p {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9rem;
  line-height: 1.65;
  color: rgba(216, 228, 225, 0.68);
}

/* 折叠条目 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--bar-h) + 24px);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 18px;
  gap: 10px;
  align-items: start;
  padding: 18px 4px;
  list-style: none;
  cursor: pointer;
  transition: background var(--t-fast);
}

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

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  background: rgba(35, 64, 95, 0.22);
}

.page-faq .faq-qnum {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-stone);
}

.page-faq .faq-qtext {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-cream);
}

.page-faq .faq-icon {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .faq-icon::before,
.page-faq .faq-icon::after {
  content: "";
  position: absolute;
  background: var(--c-orange);
  transition: transform var(--t-mid);
}

.page-faq .faq-icon::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.page-faq .faq-icon::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

.page-faq .faq-item[open] .faq-icon::after {
  transform: scaleY(0);
}

.page-faq .faq-item[open] > summary {
  background: rgba(240, 138, 60, 0.08);
}

.page-faq .faq-answer {
  padding: 2px 4px 22px;
  font-size: 0.94rem;
  line-height: 1.72;
  color: rgba(216, 228, 225, 0.84);
}

.page-faq .faq-answer p {
  margin: 0 0 12px;
  max-width: 66ch;
}

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

.page-faq .faq-answer a {
  color: var(--c-orange);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  color: var(--c-cream);
}

.page-faq .faq-tag {
  display: inline-block;
  padding: 1px 7px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.6;
  font-weight: 600;
  color: var(--c-cream);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%);
}

.page-faq .faq-tag--red {
  background: var(--c-red);
}

.page-faq .faq-tag--amber {
  background: var(--c-amber);
  color: var(--c-coal);
}

/* 联系客服块 */
.page-faq .faq-contact {
  display: grid;
  gap: 18px;
  margin-top: 24px;
  padding: 18px;
  background: rgba(35, 64, 95, 0.26);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--c-orange);
}

.page-faq .faq-contact-figure {
  margin: 0;
}

.page-faq .faq-contact-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.4) contrast(1.05) brightness(0.9);
}

.page-faq .faq-contact-body {
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-faq .faq-contact-label {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-moss);
}

.page-faq .faq-contact-line {
  display: grid;
  gap: 2px;
  margin: 0;
  font-size: 0.9rem;
}

.page-faq .faq-contact-line span {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-stone);
}

.page-faq .faq-mono {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--c-cream);
  word-break: break-all;
}

.page-faq .faq-contact-btn {
  justify-self: start;
  margin-top: 10px;
}

@media (min-width: 620px) {
  .page-faq .faq-answer {
    padding-left: 40px;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
    padding: 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 34px 0 52px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
    gap: 48px;
  }

  .page-faq h1 {
    font-size: clamp(2.8rem, 4.6vw, 4rem);
  }

  .page-faq .faq-body {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 56px;
    padding-top: 44px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
    padding: 20px 16px;
  }

  .page-faq .faq-item > summary {
    grid-template-columns: 36px minmax(0, 1fr) 18px;
    gap: 14px;
    padding: 20px 6px;
  }

  .page-faq .faq-qtext {
    font-size: 1.06rem;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 60px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-icon::before,
  .page-faq .faq-icon::after,
  .page-faq .faq-hero-jumps a,
  .page-faq .faq-rail-list a,
  .page-faq .faq-item > summary {
    transition: none;
  }
}