.page-faq {
  --faq-gap: clamp(16px, 3vw, 28px);
  display: block;
  overflow-x: clip;
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 56px) 0 clamp(28px, 5vw, 52px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(125% 100% at 86% 0%, rgba(46, 242, 255, 0.11) 0%, transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, rgba(16, 26, 58, 0.6) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(90deg, rgba(46, 242, 255, 0.055) 1px, transparent 1px),
    linear-gradient(0deg, rgba(46, 242, 255, 0.055) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(120% 88% at 84% 0%, #000 0%, transparent 66%);
  mask-image: radial-gradient(120% 88% at 84% 0%, #000 0%, transparent 66%);
}

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

.page-faq .faq-hero__eyebrow {
  margin: clamp(18px, 3.4vw, 30px) 0 0;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0.5rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.95rem, 5.4vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--ink);
  max-width: 15em;
}

.page-faq .faq-hero__lead {
  margin: clamp(14px, 2.4vw, 20px) 0 0;
  max-width: 42em;
  color: var(--ink-2);
  font-size: clamp(0.95rem, 1.7vw, 1.08rem);
  line-height: 1.8;
}

/* 指标条 */
.page-faq .faq-metrics {
  list-style: none;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.page-faq .faq-metrics > li {
  background: var(--panel);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.page-faq .faq-metrics__v {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(1.2rem, 3.4vw, 1.7rem);
  line-height: 1.1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-metrics__v small {
  font-size: 0.52em;
  margin-left: 0.18em;
  font-weight: 500;
  color: var(--ink-2);
}

.page-faq .faq-metrics__k {
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--ink-2);
  letter-spacing: 0.03em;
}

/* 分类速览 chips */
.page-faq .faq-jump {
  margin-top: clamp(20px, 3.2vw, 30px);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-jump .chip {
  text-decoration: none;
  font-size: 0.85rem;
  line-height: 1.4;
}

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

/* ============ 章节通用 ============ */
.page-faq .faq-block {
  padding: clamp(34px, 6vw, 68px) 0;
}

.page-faq .faq-block--alt {
  background: linear-gradient(180deg, rgba(16, 26, 58, 0.6) 0%, rgba(7, 11, 26, 0) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 2.4vw, 22px);
  align-items: start;
  margin-bottom: clamp(20px, 3.6vw, 34px);
}

.page-faq .faq-head__num {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(1.9rem, 5.4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--cyan);
  opacity: 0.3;
}

.page-faq .faq-head__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  line-height: 1.18;
  color: var(--ink);
  letter-spacing: -0.005em;
}

.page-faq .faq-head__lead {
  margin: 0.55rem 0 0;
  max-width: 40em;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--ink-2);
}

/* ============ 步骤流程 ============ */
.page-faq .faq-flow {
  list-style: none;
  margin: 0 0 var(--faq-gap);
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-flow__item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: border-color 0.3s var(--ease);
}

.page-faq .faq-flow__item:hover {
  border-color: rgba(46, 242, 255, 0.45);
}

.page-faq .faq-flow__idx {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-faq .faq-flow__title {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .faq-flow__text {
  grid-column: 2;
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.74;
  color: var(--ink-2);
}

/* ============ 收藏同步 ============ */
.page-faq .faq-split {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-shot {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

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

.page-faq .faq-shot--wide {
  margin-bottom: var(--faq-gap);
}

.page-faq .faq-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-points > li {
  border-left: 2px solid var(--line);
  padding-left: 14px;
}

.page-faq .faq-points strong {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-head);
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-faq .faq-points span {
  font-size: 0.89rem;
  line-height: 1.74;
  color: var(--ink-2);
}

/* ============ 刷新节奏 ============ */
.page-faq .faq-tempo {
  padding: clamp(16px, 3vw, 24px);
  margin-bottom: var(--faq-gap);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.page-faq .faq-tempo__bar {
  display: flex;
  gap: 6px;
  height: 8px;
  margin-bottom: clamp(16px, 2.6vw, 22px);
}

.page-faq .faq-tempo__seg {
  display: block;
  height: 100%;
  border-radius: 2px;
}

.page-faq .faq-tempo__seg--base {
  flex: 2 1 0;
  background: linear-gradient(90deg, rgba(46, 242, 255, 0.22), var(--cyan));
}

.page-faq .faq-tempo__seg--hot {
  flex: 1 1 0;
  background: linear-gradient(90deg, var(--orange), rgba(255, 106, 26, 0.22));
}

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

.page-faq .faq-tempo__row {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  align-items: baseline;
  gap: 6px 12px;
}

.page-faq .faq-tempo__v {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 4.2vw, 2.1rem);
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-tempo__row--hot .faq-tempo__v {
  color: var(--orange);
}

.page-faq .faq-tempo__u {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}

.page-faq .faq-tempo__k {
  grid-column: 3;
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--ink-2);
  min-width: 0;
}

/* ============ 专栏数据 ============ */
.page-faq .faq-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: clamp(16px, 2.8vw, 24px);
}

.page-faq .faq-cols__item {
  background: var(--panel);
  padding: 16px;
  min-width: 0;
}

.page-faq .faq-cols__k {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  line-height: 1;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-cols__item p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-faq .faq-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(16px, 2.8vw, 24px);
}

/* ============ 手风琴 ============ */
.page-faq .faq-acc {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.page-faq .faq-acc__item + .faq-acc__item {
  border-top: 1px solid var(--line);
}

.page-faq .faq-acc__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

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

.page-faq .faq-acc__q::marker {
  content: "";
}

.page-faq .faq-acc__q:hover {
  background: rgba(46, 242, 255, 0.05);
}

.page-faq .faq-acc__mark {
  display: block;
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 3px;
}

.page-faq .faq-acc__mark::before,
.page-faq .faq-acc__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  border-radius: 1px;
  transition: transform 0.28s var(--ease), opacity 0.28s var(--ease);
}

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

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

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

.page-faq .faq-acc__item[open] .faq-acc__q {
  background: rgba(46, 242, 255, 0.06);
  color: var(--cyan);
}

.page-faq .faq-acc__a {
  padding: 0 16px 16px 44px;
  font-size: 0.89rem;
  line-height: 1.78;
  color: var(--ink-2);
}

.page-faq .faq-acc__a p {
  margin: 0;
}

.page-faq .faq-acc__a p + p {
  margin-top: 0.6em;
}

/* ============ 联系客服 ============ */
.page-faq .faq-support {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.page-faq .faq-support__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 14px 16px;
  background: var(--panel);
  font-size: 0.91rem;
  line-height: 1.65;
  color: var(--ink);
}

.page-faq .faq-support__list .num {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-faq .faq-support__card {
  position: relative;
  padding: clamp(18px, 3.4vw, 26px);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(150deg, rgba(46, 242, 255, 0.09) 0%, rgba(16, 26, 58, 0.92) 55%);
  overflow: hidden;
}

.page-faq .faq-support__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--orange));
}

.page-faq .faq-support__k {
  margin: 0;
  font-size: 0.73rem;
  letter-spacing: 0.14em;
  color: var(--ink-2);
}

.page-faq .faq-support__v {
  margin: 0.35rem 0 1rem;
  font-family: var(--mono);
  font-size: clamp(0.95rem, 2.5vw, 1.15rem);
  line-height: 1.5;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-support__n {
  margin: 0;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-faq .faq-support__n a,
.page-faq .faq-tail a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ 索引尾注 ============ */
.page-faq .faq-tail {
  margin: clamp(20px, 3.4vw, 30px) 0 0;
  font-size: 0.87rem;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-faq .faq-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .faq-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }

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

  .page-faq .faq-acc__q {
    padding: 17px 20px;
    font-size: 1rem;
  }

  .page-faq .faq-acc__a {
    padding: 0 20px 18px 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-acc__mark::before,
  .page-faq .faq-acc__mark::after,
  .page-faq .faq-acc__q,
  .page-faq .faq-flow__item {
    transition: none;
  }
}