.page-faq {
  --faq-line-strong: rgba(11, 27, 51, .28);
  --faq-card-bg: #FFFFFF;
  --faq-ivory-soft: rgba(244, 239, 230, .78);
  --faq-ink-soft: rgba(11, 27, 51, .78);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 88% 8%, rgba(47, 217, 197, .16), transparent 62%),
    linear-gradient(158deg, var(--ink) 0%, var(--midnight) 58%, #08172B 100%);
  color: var(--ivory);
  padding-block: clamp(22px, 4vw, 40px) clamp(44px, 6vw, 72px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -6%;
  right: -6%;
  bottom: -190px;
  height: 300px;
  background: linear-gradient(92deg, rgba(242, 107, 74, .22), rgba(47, 217, 197, .18));
  transform: skewY(-3.4deg);
  pointer-events: none;
  opacity: .55;
}

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

.page-faq .faq-hero-grid {
  display: grid;
  gap: 28px;
  margin-top: clamp(20px, 3.4vw, 34px);
}

.page-faq .faq-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-faq .faq-h1 {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 14px 0 0;
  font-size: clamp(38px, 10vw, 88px);
  line-height: .96;
  font-weight: 800;
  letter-spacing: -.03em;
}

.page-faq .faq-h1-sub {
  font-family: var(--font-serif);
  font-size: clamp(17px, 3.4vw, 24px);
  line-height: 1.55;
  font-weight: 400;
  letter-spacing: .01em;
  color: var(--haze);
  max-width: 24em;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-ivory-soft);
}

/* 检索框 */
.page-faq .faq-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  max-width: 560px;
  padding: 9px 9px 9px 20px;
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--pill);
  background: rgba(244, 239, 230, .07);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-search:focus-within {
  border-color: var(--cyan);
  background: rgba(47, 217, 197, .1);
  box-shadow: 0 0 0 3px rgba(47, 217, 197, .2);
}

.page-faq .faq-search-label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-faq .faq-search-input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 8px 0;
  border: 0;
  background: transparent;
  color: var(--ivory);
  font-family: var(--font-sans);
  font-size: 15px;
}

.page-faq .faq-search-input::placeholder {
  color: var(--haze);
}

.page-faq .faq-search-input:focus {
  outline: none;
}

.page-faq .faq-search-key {
  flex: none;
  padding: 4px 9px;
  border-radius: 8px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.2;
}

/* 场景胶囊 */
.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
}

.page-faq .faq-chips-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--haze);
  margin-right: 2px;
}

.page-faq .faq-chip {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--pill);
  background: rgba(244, 239, 230, .04);
  color: var(--ivory);
  font-size: 13px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-chip:hover {
  border-color: var(--cyan);
  background: var(--cyan-wash);
  color: var(--cyan);
}

.page-faq .faq-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* 首屏图 */
.page-faq .faq-hero-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3 / 2;
  box-shadow: var(--shadow-lift);
}

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

/* 数字条 */
.page-faq .faq-stats {
  display: grid;
  gap: 14px;
  margin: 34px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 4vw, 28px);
  letter-spacing: .02em;
  color: var(--cyan);
}

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

/* ---------- 正文 ---------- */
.page-faq .faq-body {
  background: var(--ivory);
  color: var(--ink);
  padding-block: clamp(36px, 6vw, 76px);
}

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

.page-faq .faq-group {
  margin-bottom: clamp(34px, 6vw, 58px);
}

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

.page-faq .faq-h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-size: clamp(21px, 4vw, 30px);
  line-height: 1.28;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-faq .faq-h2::before {
  content: "";
  flex: none;
  width: 26px;
  height: 3px;
  border-radius: 2px;
  background: var(--clay);
}

.page-faq .faq-group-lede {
  margin: 10px 0 20px;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--rock);
}

/* 热门快捷 */
.page-faq .faq-hot-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hot-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-md);
  background: var(--faq-card-bg);
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-hot-link:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 12px 26px rgba(11, 27, 51, .1);
}

.page-faq .faq-hot-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-hot-arrow {
  flex: none;
  color: var(--coral);
  font-family: var(--font-mono);
}

/* 折叠问答 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line-light);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 17px 0;
  list-style: none;
  cursor: pointer;
  color: var(--ink);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
  border-radius: 6px;
}

.page-faq .faq-sign {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid var(--faq-line-strong);
  border-radius: 50%;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-sign::before,
.page-faq .faq-sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--clay);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-sign::before {
  width: 10px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-sign::after {
  width: 1.5px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item[open] .faq-sign {
  background: var(--clay);
  border-color: var(--clay);
}

.page-faq .faq-item[open] .faq-sign::before,
.page-faq .faq-item[open] .faq-sign::after {
  background: var(--ivory);
}

.page-faq .faq-item[open] .faq-sign::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 0 20px 35px;
  color: var(--faq-ink-soft);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-a a {
  color: var(--clay);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-mark {
  padding: 0 3px;
  border-radius: 3px;
  background: rgba(47, 217, 197, .35);
  color: var(--ink);
}

.page-faq .faq-a .mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .04em;
}

/* 注册区域区块 */
.page-faq .faq-group--region {
  padding: clamp(20px, 4vw, 34px);
  border-radius: var(--radius-xl);
  background: linear-gradient(150deg, rgba(185, 99, 72, .11), rgba(112, 143, 106, .12));
}

.page-faq .faq-steps {
  display: grid;
  gap: 12px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  padding: 16px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .78);
}

.page-faq .faq-step-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--clay);
}

.page-faq .faq-step-title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-step-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--rock);
}

.page-faq .faq-step-media {
  margin: 0 0 18px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3 / 2;
}

/* 批次面板 */
.page-faq .faq-batch {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, var(--midnight), var(--ink));
  color: var(--ivory);
}

.page-faq .faq-batch-label {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--haze);
}

.page-faq .faq-batch-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 4.4vw, 26px);
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .faq-batch .btn {
  text-decoration: none;
}

/* 侧边索引 */
.page-faq .faq-index-panel {
  padding: 20px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .6);
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--rock);
}

.page-faq .faq-index-list {
  display: grid;
  gap: 2px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-index-link:hover {
  background: var(--cyan-wash);
}

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

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--clay);
}

.page-faq .faq-index-note {
  margin: 0 0 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line-light);
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
}

.page-faq .faq-index-cta {
  display: inline-block;
  text-decoration: none;
}

/* ---------- 更多帮助 ---------- */
.page-faq .faq-help {
  background: linear-gradient(200deg, var(--midnight) 0%, var(--ink) 78%);
  color: var(--ivory);
  padding-block: clamp(44px, 7vw, 82px);
}

.page-faq .faq-help-head h2 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: clamp(24px, 4.6vw, 38px);
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: .01em;
}

.page-faq .faq-help-head p {
  margin: 0 0 28px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--haze);
}

.page-faq .faq-help-cards {
  display: grid;
  gap: 14px;
}

.page-faq .faq-help-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--radius-lg);
  background: rgba(244, 239, 230, .04);
  color: var(--ivory);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-help-card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: rgba(47, 217, 197, .08);
}

.page-faq .faq-help-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-help-card-title {
  font-size: 17px;
  font-weight: 700;
}

.page-faq .faq-help-card-text {
  font-size: 14px;
  line-height: 1.72;
  color: var(--haze);
}

.page-faq .faq-help-card-go {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-faq .faq-help-legal {
  margin: 26px 0 0;
  font-size: 13px;
  color: var(--haze);
}

.page-faq .faq-help-legal a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(215, 168, 74, .45);
}

.page-faq .faq-help-legal a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hot-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
    gap: 44px;
  }

  .page-faq .faq-help-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 264px;
    align-items: start;
    gap: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-h1 {
    font-size: clamp(56px, 7vw, 88px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hot-link,
  .page-faq .faq-help-card,
  .page-faq .faq-chip,
  .page-faq .faq-sign,
  .page-faq .faq-sign::before,
  .page-faq .faq-sign::after {
    transition: none;
  }

  .page-faq .faq-hot-link:hover,
  .page-faq .faq-help-card:hover {
    transform: none;
  }
}