.page-faq {
  --faq-line: rgba(7, 26, 38, .10);
  --faq-ink-soft: rgba(7, 26, 38, .80);
  --faq-ink-cyan: #0b6f78;
  --faq-radius: 16px;
  --faq-gap: clamp(20px, 3vw, 36px);
  padding: calc(var(--top) + 18px) var(--rail) 72px;
  font-family: var(--font-sans);
  color: var(--paper);
  background:
    radial-gradient(900px 420px at 88% -8%, rgba(56, 225, 232, .15), transparent 65%),
    radial-gradient(760px 520px at -10% 26%, rgba(59, 50, 120, .32), transparent 70%),
    var(--space);
}

.page-faq .crumb-sep {
  padding: 0 6px;
  color: var(--text-mute);
}

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

.page-faq .breadcrumb a:hover {
  text-decoration: underline;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: min(46%, 420px);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56, 225, 232, .55));
  transform: rotate(-12deg);
  transform-origin: right top;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  padding-bottom: clamp(22px, 3.6vw, 44px);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 16px;
  font-size: clamp(30px, 5.6vw, 56px);
  font-weight: 300;
  line-height: 1.03;
  letter-spacing: -0.03em;
  max-width: 17em;
}

.page-faq .faq-hero h1 .hl {
  color: var(--cyan);
}

.page-faq .faq-hero__text {
  margin: 0;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--text-dim);
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-faq .faq-hero__chips a {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--paper);
  text-decoration: none;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.page-faq .faq-hero__chips a:hover,
.page-faq .faq-hero__chips a:focus-visible {
  color: var(--cyan);
  border-color: rgba(56, 225, 232, .6);
  background: rgba(56, 225, 232, .08);
}

.page-faq .faq-brief {
  padding: 20px 20px 16px;
  border-radius: 18px;
}

.page-faq .faq-brief__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-faq .faq-brief ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-brief li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--edge-soft);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-brief li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-brief .num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--lemon);
  padding-top: 2px;
}

.page-faq .faq-brief__foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--edge-soft);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--text-mute);
}

/* 主体非对称分栏 */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding-top: clamp(16px, 3vw, 30px);
}

.page-faq .faq-index {
  padding: 12px;
  border: 1px solid var(--edge);
  border-radius: var(--faq-radius);
  background: rgba(168, 221, 227, .07);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow-x: auto;
}

.page-faq .faq-index ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
}

.page-faq .chapter-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 9px;
  align-items: baseline;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--text-dim);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  background: rgba(168, 221, 227, .06);
  transition: color .25s var(--ease), background .25s var(--ease);
}

.page-faq .chapter-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-mute);
}

.page-faq .chapter-link:hover {
  color: var(--paper);
  background: rgba(56, 225, 232, .10);
}

.page-faq .chapter-link.is-current {
  color: var(--paper);
  background: rgba(56, 225, 232, .13);
}

.page-faq .chapter-link.is-current .chapter-num {
  color: var(--lemon);
}

.page-faq .chapter-link.is-current::before {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: var(--lemon);
}

/* 章节 */
.page-faq .faq-section {
  margin-bottom: clamp(34px, 5vw, 62px);
  scroll-margin-top: calc(var(--top) + 24px);
}

.page-faq .faq-section:last-of-type {
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-faq .faq-section__head {
  margin-bottom: 18px;
}

.page-faq .faq-section__kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-section h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-section__lead {
  margin: 0;
  max-width: 42em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-dim);
}

/* 步骤卡 */
.page-faq .steps {
  display: grid;
  gap: 12px;
}

.page-faq .step-card {
  padding: 15px 17px;
  border: 1px solid var(--edge);
  border-radius: var(--faq-radius);
  background: linear-gradient(160deg, rgba(168, 221, 227, .12), rgba(11, 49, 59, .58));
  transition: border-color .25s var(--ease), background .25s var(--ease);
}

.page-faq .step-card[open] {
  border-color: rgba(56, 225, 232, .45);
  background: linear-gradient(160deg, rgba(56, 225, 232, .17), rgba(11, 49, 59, .76));
}

.page-faq .step-card__summary {
  display: grid;
  gap: 5px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .step-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--lemon);
}

.page-faq .step-card__title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .step-card__hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-mute);
}

.page-faq .step-card[open] .step-card__hint {
  display: none;
}

.page-faq .step-card__body {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--edge-soft);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--text-dim);
}

/* 图文分栏 */
.page-faq .split {
  display: grid;
  gap: 18px;
}

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

.page-faq .media-frame {
  border-radius: var(--faq-radius);
  overflow: hidden;
  border: 1px solid var(--edge);
  background: rgba(11, 49, 59, .6);
}

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

.page-faq .split__cap {
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--text-mute);
}

/* 问答折叠 */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .qa {
  border-radius: 14px;
  background: var(--paper);
  color: var(--ink);
  transition: box-shadow .25s var(--ease);
}

.page-faq .qa[open] {
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-faq .qa__summary {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__num {
  flex: none;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--faq-ink-cyan);
}

.page-faq .qa__qtext {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .qa__sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  margin-left: auto;
  color: var(--faq-ink-cyan);
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 2px;
}

.page-faq .qa__sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .qa__sign::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}

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

.page-faq .qa__a {
  padding: 0 16px 16px clamp(16px, 4vw, 42px);
  font-size: 14px;
  line-height: 1.9;
  color: var(--faq-ink-soft);
}

.page-faq .qa__a p {
  margin: 0 0 8px;
}

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

.page-faq .tag {
  display: inline-block;
  margin-right: 6px;
  padding: 1px 8px;
  border: 1px solid rgba(11, 49, 59, .28);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--faq-ink-cyan);
  vertical-align: 1px;
}

/* 指标表 */
.page-faq .table-wrap {
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid var(--edge);
  border-radius: var(--faq-radius);
  background: rgba(168, 221, 227, .07);
  overflow-x: auto;
}

.page-faq .data-table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: 13px;
}

.page-faq .data-table caption {
  padding-bottom: 10px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--text-mute);
}

.page-faq .data-table th,
.page-faq .data-table td {
  padding: 9px 10px;
  text-align: left;
  border-bottom: 1px solid var(--edge-soft);
  vertical-align: top;
}

.page-faq .data-table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .data-table td {
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .data-table td:first-child {
  font-weight: 600;
  color: var(--paper);
  white-space: nowrap;
}

.page-faq .data-table tr:last-child td {
  border-bottom: 0;
}

/* 阵容四类 */
.page-faq .lineup-grid {
  display: grid;
  gap: 10px;
  margin: 0 0 18px;
}

.page-faq .lineup-item {
  padding: 14px 16px;
  border-radius: 14px;
  border-left: 2px solid var(--lemon);
  background: linear-gradient(150deg, rgba(122, 33, 65, .52), rgba(6, 24, 38, .68));
}

.page-faq .lineup-item dt {
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  margin-bottom: 6px;
}

.page-faq .lineup-item dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* 资料库数字带 */
.page-faq .stat-strip {
  display: grid;
  gap: 1px;
  margin-bottom: 16px;
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--edge-soft);
}

.page-faq .stat-cell {
  padding: 15px 16px;
  background: var(--teal);
}

.page-faq .stat-cell__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.page-faq .stat-cell--hot .stat-cell__num {
  color: var(--lemon);
}

.page-faq .stat-cell__label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--text-dim);
}

/* 联系信息 */
.page-faq .contact-panel {
  margin-top: 16px;
  padding: 18px 20px;
  border-radius: var(--faq-radius);
}

.page-faq .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .contact-list li {
  display: grid;
  gap: 3px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--edge-soft);
}

.page-faq .contact-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .contact-list .contact-val {
  word-break: break-word;
}

/* 结尾行动区 */
.page-faq .faq-cta {
  display: grid;
  gap: 18px;
  padding: clamp(20px, 4vw, 36px);
  border-radius: 20px;
  border: 1px solid rgba(216, 255, 62, .18);
  background: linear-gradient(135deg, rgba(122, 33, 65, .92), rgba(59, 50, 120, .88));
}

.page-faq .faq-cta__kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--lemon);
}

.page-faq .faq-cta h2 {
  margin: 0 0 10px;
  font-size: clamp(21px, 3vw, 30px);
  font-weight: 300;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 38em;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(240, 250, 250, .82);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

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

  .page-faq .stat-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .contact-list li {
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }
}

@media (min-width: 820px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-faq .stat-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
    align-items: end;
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(180px, 224px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--top) + 20px);
    overflow: visible;
  }

  .page-faq .faq-index ol {
    display: grid;
    gap: 2px;
  }

  .page-faq .chapter-link {
    white-space: normal;
    background: transparent;
  }

  .page-faq .chapter-link.is-current::before {
    left: -12px;
    right: auto;
    top: 50%;
    bottom: auto;
    width: 3px;
    height: 18px;
    transform: translateY(-50%);
  }
}

@media (min-width: 1000px) {
  .page-faq .split {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: start;
    gap: 22px;
  }

  .page-faq .split--flip {
    grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  }

  .page-faq .split--flip .split__media {
    order: -1;
  }
}