.page-faq {
  --faq-index-w: 248px;
  --faq-gap: clamp(20px, 3vw, 36px);
  --faq-radius: 24px;
  --faq-open-bg: #EDF2EE;
  display: block;
  background: var(--paper);
  color: var(--text);
  padding-bottom: clamp(64px, 9vw, 112px);
}

.page-faq .breadcrumb {
  margin: 24px 0 20px;
  font-size: 13px;
  color: var(--note);
}
.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}
.page-faq .breadcrumb a {
  color: var(--note);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-mast {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding: clamp(26px, 4.5vw, 52px);
  border-radius: var(--r-xl);
  background: linear-gradient(155deg, var(--ink) 0%, var(--ink-2) 62%, #102F28 100%);
  color: var(--on-ink);
  overflow: hidden;
}
.page-faq .faq-mast::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--orange) 0 26px, transparent 26px 52px);
  opacity: .55;
}
.page-faq .faq-eyebrow {
  color: var(--orange-2);
  letter-spacing: .14em;
}
.page-faq .faq-mast h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 5.2vw, 48px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--on-ink);
}

.page-faq .faq-mast-fig {
  margin: 0;
  max-width: 300px;
}
.page-faq .faq-mast-fig .figure-media {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-3);
}
.page-faq .faq-mast-fig .figure-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-faq .faq-mast-fig .figure-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--on-ink-dim);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(199, 211, 206, .24);
}
.page-faq .faq-stat {
  display: block;
  min-width: 0;
}
.page-faq .faq-stat .stat-value {
  display: inline;
  font-family: var(--font-mono);
  font-size: clamp(25px, 3.4vw, 33px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--orange);
}
.page-faq .faq-stat .stat-unit {
  display: inline;
  margin-left: 5px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange-2);
}
.page-faq .faq-stat .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--on-ink-dim);
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(48px, 7vw, 88px);
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--note);
}
.page-faq .faq-index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-index-list li {
  flex: 0 0 auto;
}
.page-faq .faq-index-list a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 15px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  background: var(--row);
  color: var(--text);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  transition: background .18s var(--ease-out), color .18s var(--ease-out), border-color .18s var(--ease-out);
}
.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  background: var(--ink);
  color: var(--paper);
}
.page-faq .faq-index-no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--note);
}
.page-faq .faq-index-list a:hover .faq-index-no,
.page-faq .faq-index-list a:focus-visible .faq-index-no {
  color: var(--orange-2);
}
.page-faq .faq-index-count {
  min-width: 20px;
  padding: 1px 6px;
  border-radius: var(--r-pill);
  background: var(--paper);
  color: var(--green-mid);
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: center;
}

.page-faq .faq-groups {
  display: grid;
  gap: clamp(46px, 6vw, 76px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 100px;
}
.page-faq .faq-group-head {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
}
.page-faq .faq-group-no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}
.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3vw, 30px);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--ink);
}
.page-faq .faq-group-note {
  margin: 0;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--note);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}
.page-faq .faq-item {
  background: var(--row);
  border-radius: var(--faq-radius);
  overflow: hidden;
  transition: background .2s var(--ease-out);
}
.page-faq .faq-item[open] {
  background: var(--faq-open-bg);
}
.page-faq .faq-q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-q::-webkit-details-marker {
  display: none;
}
.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -3px;
  border-radius: var(--faq-radius);
}
.page-faq .faq-q-text {
  flex: 1 1 auto;
  min-width: 0;
}
.page-faq .faq-q::after {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: -4px;
  border-right: 2px solid var(--green-mid);
  border-bottom: 2px solid var(--green-mid);
  transform: rotate(45deg);
  transition: transform .22s var(--ease-out), border-color .22s var(--ease-out);
}
.page-faq .faq-item[open] .faq-q::after {
  margin-top: 4px;
  border-color: var(--orange);
  transform: rotate(-135deg);
}
.page-faq .faq-item:hover .faq-q::after {
  border-color: var(--orange);
}

.page-faq .faq-a {
  display: grid;
  gap: 12px;
  padding: 0 22px 22px;
}
.page-faq .faq-a p {
  margin: 0;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  display: grid;
  gap: 10px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}
.page-faq .faq-steps li::before {
  content: counter(faqstep);
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12.5px;
}

.page-faq .faq-mono {
  padding: 12px 16px;
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-2);
}
.page-faq .faq-inline-code {
  display: inline-block;
  padding: 1px 8px;
  border-radius: var(--r-pill);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: .02em;
}

.page-faq .faq-split {
  display: grid;
  gap: var(--faq-gap);
}
.page-faq .faq-side-fig {
  margin: 0;
  align-self: start;
}
.page-faq .faq-side-fig .figure-media {
  position: relative;
  aspect-ratio: 25 / 16;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--row);
}
.page-faq .faq-side-fig .figure-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-faq .faq-side-fig .figure-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--note);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-more {
  position: relative;
  display: grid;
  gap: 14px;
  margin-top: clamp(52px, 7vw, 84px);
  padding: clamp(28px, 5vw, 56px);
  border-radius: var(--r-xl);
  background: linear-gradient(140deg, var(--ink-2) 0%, var(--ink) 100%);
  color: var(--on-ink);
  overflow: hidden;
}
.page-faq .faq-more::after {
  content: "";
  position: absolute;
  top: -70px;
  right: -70px;
  width: 230px;
  height: 230px;
  border: 1px dashed rgba(255, 138, 61, .35);
  border-radius: 50%;
  pointer-events: none;
}
.page-faq .faq-more-eyebrow {
  color: var(--orange-2);
  letter-spacing: .14em;
}
.page-faq .faq-more h2 {
  margin: 0;
  max-width: 22em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.22;
  color: var(--paper);
}
.page-faq .faq-more p {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--on-ink);
}
.page-faq .faq-more .faq-more-note {
  font-size: 13px;
  color: var(--on-ink-dim);
}
.page-faq .faq-more-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.page-faq .faq-links {
  display: grid;
  gap: 10px;
  margin-top: 40px;
}
.page-faq .faq-links a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--paper);
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: border-color .18s var(--ease-out), color .18s var(--ease-out), background .18s var(--ease-out);
}
.page-faq .faq-links a::before {
  content: "→";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  color: var(--orange);
}
.page-faq .faq-links a:hover,
.page-faq .faq-links a:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-mast {
    grid-template-columns: minmax(0, 1fr) 272px;
    align-items: start;
  }
  .page-faq .faq-mast-copy {
    padding-right: 8px;
  }
  .page-faq .faq-mast-fig {
    max-width: none;
  }
  .page-faq .faq-stats {
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
  }
  .page-faq .faq-index {
    position: sticky;
    top: 28px;
    align-self: start;
  }
  .page-faq .faq-index-list {
    display: grid;
    gap: 6px;
    padding: 0;
    overflow: visible;
  }
  .page-faq .faq-index-list li {
    flex: 1 1 auto;
  }
  .page-faq .faq-index-list a {
    border-radius: var(--r-sm);
    white-space: normal;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 268px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-q::after,
  .page-faq .faq-index-list a,
  .page-faq .faq-links a {
    transition: none;
  }
}