.page-faq {
  --faq-gap: clamp(28px, 5vw, 56px);
  --faq-panel: rgba(16, 36, 58, .74);
  --faq-answer: rgba(8, 23, 38, .6);
  display: block;
  padding-bottom: clamp(56px, 9vw, 110px);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: clamp(20px, 4vw, 34px) 0 0;
  font-size: 13px;
  color: var(--text-dim);
}

.page-faq .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  margin-top: clamp(20px, 4vw, 36px);
  padding: clamp(24px, 4.4vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(130% 150% at 0% 0%, rgba(47, 224, 200, .16), transparent 60%),
    linear-gradient(158deg, var(--glass-2), var(--blue-panel));
  box-shadow: 0 22px 60px -40px rgba(0, 0, 0, .9);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -70px;
  right: -40px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: repeating-linear-gradient(135deg, rgba(47, 224, 200, .09) 0 2px, transparent 2px 11px);
  transform: rotate(10deg);
  pointer-events: none;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding-left: 10px;
  border-left: 2px solid var(--cyan);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6vw, 46px);
  line-height: 1.18;
  letter-spacing: -.02em;
}

.page-faq .faq-hero__lead {
  max-width: 60ch;
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
  margin: 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .stat-num {
  font-size: 22px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -.01em;
}

.page-faq .stat-label {
  font-size: 13px;
  color: var(--text-dim);
}

/* ---------- 区块通用 ---------- */
.page-faq .faq-block {
  margin-top: var(--faq-gap);
}

.page-faq .section-head {
  padding-top: 20px;
  margin-bottom: clamp(20px, 3.5vw, 30px);
  border-top: 1px solid var(--line);
}

.page-faq .section-index {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .section-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 34px);
  line-height: 1.25;
  letter-spacing: -.02em;
}

.page-faq .section-note {
  max-width: 62ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 快速上手三步 ---------- */
.page-faq .steps {
  display: grid;
  gap: 16px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .step {
  position: relative;
  padding: 22px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--blue-panel);
  overflow: hidden;
}

.page-faq .step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  width: 46px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(47, 224, 200, 0));
}

.page-faq .step__num {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-faq .step__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text);
}

.page-faq .step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 图片 ---------- */
.page-faq .media-frame {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--blue-panel);
  overflow: hidden;
}

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

.page-faq .media-frame__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
  background: rgba(8, 23, 38, .5);
}

.page-faq .faq-figure {
  margin-top: 4px;
}

.page-faq .faq-side-figure {
  max-width: 280px;
  margin-inline: auto;
}

/* ---------- 分段切换 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 26px;
}

.page-faq .tablist {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  padding-bottom: 2px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .tab {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 10px 14px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--text-dim);
  font: inherit;
  font-size: 15px;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--dur), border-color var(--dur);
}

.page-faq .tab:hover {
  color: var(--text);
}

.page-faq .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .tab[aria-selected="true"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .tabpanel[hidden] {
  display: none;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--faq-panel);
  overflow: hidden;
  transition: border-color var(--dur), background var(--dur);
}

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

.page-faq .qa[open] {
  border-color: rgba(47, 224, 200, .42);
  background:
    linear-gradient(180deg, rgba(47, 224, 200, .07), rgba(47, 224, 200, 0) 45%),
    var(--faq-panel);
}

.page-faq .qa-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
}

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

.page-faq .qa-q::marker {
  content: "";
}

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

.page-faq .qa-num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-faq .qa-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa-icon {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 4px;
}

.page-faq .qa-icon::before,
.page-faq .qa-icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  border-radius: 2px;
}

.page-faq .qa-icon::before {
  top: 8px;
  left: 0;
  width: 18px;
  height: 2px;
}

.page-faq .qa-icon::after {
  top: 0;
  left: 8px;
  width: 2px;
  height: 18px;
  transform: scaleY(1);
  transform-origin: center;
  transition: transform var(--dur) ease;
}

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

.page-faq .qa-body {
  margin: 0 14px 14px;
  padding: 14px 14px 14px 16px;
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--faq-answer);
}

.page-faq .qa-lead {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .qa-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: qstep;
}

.page-faq .qa-steps li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .qa-steps li:last-child {
  margin-bottom: 0;
}

.page-faq .qa-steps li::before {
  counter-increment: qstep;
  content: counter(qstep);
  position: absolute;
  top: 2px;
  left: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(47, 224, 200, .16);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 18px;
  text-align: center;
}

.page-faq .qa-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.page-faq .qa-tag {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--cyan);
  font-size: 13px;
  text-decoration: none;
  transition: border-color var(--dur), background var(--dur), color var(--dur);
}

.page-faq .qa-tag:hover,
.page-faq .qa-tag:focus-visible {
  border-color: var(--cyan);
  background: rgba(47, 224, 200, .1);
}

/* ---------- 页尾求助 ---------- */
.page-faq .faq-help {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
  margin-top: var(--faq-gap);
  padding: clamp(20px, 3.4vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(120deg, rgba(242, 184, 75, .1), rgba(8, 23, 38, 0) 60%),
    var(--blue-panel);
}

.page-faq .faq-help__text {
  flex: 1 1 320px;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-help .btn {
  flex: 0 0 auto;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 32px;
    align-items: start;
  }

  .page-faq .faq-side-figure {
    margin-inline: 0;
    max-width: none;
  }
}

@media (min-width: 1024px) {
  .page-faq .qa {
    display: grid;
    grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .qa-q {
    grid-column: 1;
    align-self: stretch;
    border-right: 1px solid var(--line);
  }

  .page-faq .qa-body {
    grid-column: 2;
    margin: 18px 18px 18px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa-icon::after,
  .page-faq .qa-tag,
  .page-faq .tab {
    transition: none;
  }
}