.page-faq {
  --accent: var(--cyan);
  --step-mark: var(--moss);
}

/* 面包屑 */
.page-faq .breadcrumb {
  padding-block: 18px 0;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cool);
}

.page-faq .breadcrumb a {
  color: var(--cool);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* 首屏 */
.page-faq .faq-hero {
  padding-block: clamp(28px, 5vw, 56px) clamp(40px, 6vw, 88px);
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  font-size: clamp(38px, 6.4vw, 84px);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: -.02em;
}

.page-faq .faq-hero__lead {
  max-width: 60ch;
  margin: 20px 0 0;
  font-size: 17px;
  line-height: 1.8;
  color: var(--cool);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero__figure {
  margin: 0;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: end;
  }
}

/* 分类索引带 */
.page-faq .faq-index {
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-index__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-index__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 600;
}

.page-faq .cat-band {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border: 2px solid var(--line-strong);
  color: var(--paper);
  font-size: 15px;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .cat-pill:hover,
.page-faq .cat-pill:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-cyan);
}

.page-faq .cat-pill__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--rock);
  font-variant-numeric: tabular-nums;
}

.page-faq .cat-pill:hover .cat-pill__num,
.page-faq .cat-pill:focus-visible .cat-pill__num {
  color: var(--accent);
}

/* 数据条 */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  margin-top: 30px;
  border: 2px solid var(--line);
}

.page-faq .faq-stat {
  padding: 18px;
  background: var(--ink-2);
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stat__txt {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cool);
}

@media (min-width: 760px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* 章节头 */
.page-faq .sec-head {
  padding-bottom: 18px;
  border-bottom: 2px solid var(--line);
}

.page-faq .sec-head__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.4vw, 44px);
  font-weight: 200;
  line-height: 1.12;
  letter-spacing: -.01em;
}

.page-faq .sec-head__intro {
  max-width: 68ch;
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--cool);
}

/* 问答折叠 */
.page-faq .qa-list {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .qa {
  border: 2px solid var(--line);
  background: var(--ink-2);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .qa:hover {
  border-color: var(--line-strong);
}

.page-faq .qa[open] {
  border-color: var(--accent);
  box-shadow: var(--shadow-cyan);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.page-faq .qa__num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--rock);
  font-variant-numeric: tabular-nums;
}

.page-faq .qa[open] .qa__num {
  color: var(--accent);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.6;
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  margin-top: 6px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--rock);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

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

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

.page-faq .qa[open] .qa__mark::before {
  background: var(--accent);
}

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

.page-faq .qa__body {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .qa__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--cool);
}

.page-faq .qa__body a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 2px solid var(--line-strong);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  border-bottom-color: var(--accent);
}

@media (min-width: 760px) {
  .page-faq .qa__body {
    padding-left: 58px;
  }
}

/* 开户四步 */
.page-faq .section--paper {
  color: var(--ink);
}

.page-faq .section--paper .sec-head {
  border-bottom-color: var(--line-ink);
}

.page-faq .section--paper .sec-head__intro {
  color: #3b4249;
}

.page-faq .step-grid {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.page-faq .step-card {
  position: relative;
  padding: 24px 20px 30px;
  border: 2px solid var(--line-ink);
  background: var(--paper);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .step-card::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  bottom: -2px;
  height: 6px;
  background: var(--step-mark);
}

.page-faq .step-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-hard);
}

.page-faq .step-card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 38px;
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-faq .step-card__title {
  margin: 18px 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .step-card__txt {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #3b4249;
}

.page-faq .step-card__state {
  display: inline-block;
  margin-top: 18px;
  padding: 5px 10px;
  border: 2px solid var(--step-mark);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--moss);
}

@media (min-width: 720px) {
  .page-faq .step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-faq .step-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }
}

/* 排名字段条 */
.page-faq .field-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  margin-top: 28px;
  border: 2px solid var(--line);
}

.page-faq .field-item {
  padding: 18px;
  background: var(--ink-2);
}

.page-faq .field-item__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--accent);
}

.page-faq .field-item__v {
  display: block;
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--cool);
}

@media (min-width: 760px) {
  .page-faq .field-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* 资料库与导出 */
.page-faq .export-grid {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.page-faq .export-copy .qa-list {
  margin-top: 0;
}

.page-faq .export-formats {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.page-faq .format-card {
  padding: 18px;
  border: 2px solid var(--line);
  background: var(--ink-2);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .format-card:hover {
  border-color: var(--accent);
}

.page-faq .format-card__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-faq .format-card__txt {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--cool);
}

.page-faq .export-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cool);
}

.page-faq .export-note a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 2px solid var(--line-strong);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .export-note a:hover,
.page-faq .export-note a:focus-visible {
  border-bottom-color: var(--accent);
}

.page-faq .export-figure {
  margin: 0;
  border: 2px solid var(--line);
}

@media (min-width: 640px) {
  .page-faq .export-formats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-faq .export-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    align-items: start;
    gap: 36px;
  }
}

/* 未找到答案 */
.page-faq .help-box {
  display: grid;
  gap: 26px;
  padding: clamp(24px, 4vw, 44px);
  border: 2px solid var(--orange);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
}

.page-faq .help-box__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.2vw, 40px);
  font-weight: 200;
  line-height: 1.14;
}

.page-faq .help-box__txt {
  max-width: 60ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--cool);
}

.page-faq .help-box__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .help-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 2px solid var(--line);
}

.page-faq .help-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 16px;
  background: var(--ink);
}

.page-faq .help-list__k {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--rock);
}

.page-faq .help-list__v {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

@media (min-width: 900px) {
  .page-faq .help-box {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: center;
    gap: 40px;
  }
}

/* 图片容器兜底 */
.page-faq .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}