.page-faq {
  --faq-gap: clamp(18px, 3.2vw, 40px);
  --faq-side: 258px;
  --faq-panel: #0E1A2B;
  --faq-line-soft: rgba(42, 47, 58, .8);
  display: block;
  background:
    radial-gradient(880px 520px at 90% -12%, rgba(160, 107, 255, .15), transparent 62%),
    radial-gradient(680px 420px at -14% 24%, rgba(63, 224, 208, .08), transparent 58%),
    var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(24px, 5vw, 60px) 0 clamp(22px, 4vw, 46px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -20%;
  right: -8%;
  width: min(760px, 88vw);
  height: 120%;
  background: linear-gradient(152deg, rgba(160, 107, 255, .30) 0%, rgba(63, 224, 208, .10) 46%, rgba(7, 8, 13, 0) 78%);
  clip-path: polygon(34% 0%, 100% 0%, 100% 100%, 0% 72%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image: repeating-linear-gradient(180deg, rgba(242, 239, 230, .04) 0 1px, transparent 1px 7px);
  opacity: .65;
  pointer-events: none;
}

.page-faq .yb-crumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .yb-h1 {
  max-width: 20ch;
  margin: 10px 0 0;
}

.page-faq .yb-lede {
  max-width: 62ch;
  margin-top: 16px;
  color: var(--paper);
  opacity: .88;
}

.page-faq .faq-flags {
  list-style: none;
  margin: clamp(22px, 3.4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-flags li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 14px;
  color: var(--muted);
  border-top: 1px solid var(--faq-line-soft);
  padding-top: 10px;
}

.page-faq .faq-flags__num {
  font-size: 18px;
  color: var(--cyan);
  min-width: 3.4em;
}

/* ---------- 流程图 ---------- */

.page-faq .faq-flow {
  padding-top: clamp(6px, 1.6vw, 18px);
}

.page-faq .faq-flow .yb-media {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--faq-panel);
}

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

/* ---------- 主体网格 ---------- */

.page-faq .faq-map {
  padding-top: clamp(28px, 5vw, 64px);
  padding-bottom: clamp(40px, 7vw, 96px);
}

.page-faq .faq-map__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
}

/* ---------- 左侧索引 ---------- */

.page-faq .faq-index {
  border-left: 2px solid var(--line);
  padding-left: 16px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: baseline;
  gap: 8px;
  padding: 9px 6px 9px 0;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: color .18s var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--violet);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--paper);
}

.page-faq .faq-index__card {
  margin-top: 22px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: linear-gradient(180deg, rgba(14, 26, 43, .9), rgba(7, 8, 13, .5));
}

.page-faq .faq-index__icon {
  width: 22px;
  height: 22px;
  color: var(--cyan);
  display: block;
  margin-bottom: 10px;
}

.page-faq .faq-index__card p {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-index__card .yb-btn {
  font-size: 13px;
}

/* ---------- 右侧步骤 ---------- */

.page-faq .faq-body {
  display: grid;
  gap: clamp(34px, 5.4vw, 68px);
  min-width: 0;
}

.page-faq .faq-step {
  scroll-margin-top: calc(var(--header-h) + 24px);
  min-width: 0;
}

.page-faq .faq-step__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line-soft);
  margin-bottom: 18px;
}

.page-faq .faq-step__num {
  font-size: 30px;
  line-height: 1;
  color: var(--violet);
  letter-spacing: -.02em;
}

.page-faq .faq-step__head .yb-h2 {
  margin: 0;
}

.page-faq .faq-step__lede {
  max-width: 64ch;
  color: var(--paper);
  opacity: .86;
}

.page-faq .faq-step p {
  max-width: 68ch;
}

/* ---------- 通用三步 ---------- */

.page-faq .faq-acts {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-act {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: linear-gradient(160deg, rgba(14, 26, 43, .82), rgba(7, 8, 13, .45));
  transition: border-color .22s var(--ease);
}

.page-faq .faq-act:hover {
  border-color: var(--violet);
}

.page-faq .faq-act__num {
  font-size: 26px;
  line-height: 1;
  color: var(--muted);
  letter-spacing: -.03em;
}

.page-faq .faq-act h3 {
  margin: 0 0 8px;
}

.page-faq .faq-act p {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--muted);
}

.page-faq .faq-act__expect {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--moss) !important;
  border-left: 2px solid var(--moss);
  padding-left: 10px;
}

.page-faq .faq-ver {
  color: var(--cyan);
  font-weight: 700;
}

/* ---------- 分支卡片 ---------- */

.page-faq .faq-branches {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-faq .faq-branch {
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: linear-gradient(180deg, rgba(14, 26, 43, .84), rgba(7, 8, 13, .5));
  transition: border-color .22s var(--ease);
}

.page-faq .faq-branch:hover {
  border-color: var(--violet);
}

.page-faq .faq-branch[open] {
  border-color: var(--moss);
}

.page-faq .faq-branch__head {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) 34px;
  grid-template-areas: "num title sign" "num tag sign";
  align-items: center;
  gap: 6px 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-branch__head:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.page-faq .faq-branch__num {
  grid-area: num;
  font-size: 15px;
  color: var(--violet);
  letter-spacing: .04em;
}

.page-faq .faq-branch__title {
  grid-area: title;
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
  line-height: 1.5;
}

.page-faq .faq-branch__head .yb-tag {
  grid-area: tag;
  justify-self: start;
}

.page-faq .faq-branch__sign {
  grid-area: sign;
  position: relative;
  width: 16px;
  height: 16px;
  justify-self: end;
}

.page-faq .faq-branch__sign::before,
.page-faq .faq-branch__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

.page-faq .faq-branch__sign::before {
  width: 16px;
  height: 1.5px;
}

.page-faq .faq-branch__sign::after {
  width: 1.5px;
  height: 16px;
}

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

.page-faq .faq-branch__body {
  padding: 2px 16px 18px;
  border-top: 1px solid var(--faq-line-soft);
  margin-top: 2px;
}

.page-faq .faq-branch__steps {
  margin: 14px 0 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-branch__steps > div {
  display: grid;
  gap: 4px;
}

.page-faq .faq-branch__steps dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--clay);
}

.page-faq .faq-branch__steps dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
  opacity: .9;
  max-width: 66ch;
}

/* ---------- 分栏（iOS 段） ---------- */

.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

.page-faq .faq-callout {
  border-left: 3px solid var(--magenta);
  padding: 10px 0 10px 14px;
  background: linear-gradient(90deg, rgba(255, 61, 139, .08), transparent 70%);
  color: var(--paper) !important;
}

.page-faq .faq-callout strong {
  color: var(--magenta);
}

.page-faq .faq-shotto {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--faq-panel);
}

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

/* ---------- 回放进度条目 ---------- */

.page-faq .faq-cases {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.page-faq .faq-case {
  border-left: 2px solid var(--line);
  padding: 2px 0 2px 16px;
  transition: border-color .2s var(--ease);
}

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

.page-faq .faq-case h3 {
  margin: 0 0 6px;
}

.page-faq .faq-case p {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.75;
}

.page-faq .faq-note {
  margin-top: 22px;
  padding: 16px;
  border: 1px dashed var(--line);
  border-radius: var(--r-sm);
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
}

/* ---------- 旧版本跳转 ---------- */

.page-faq .faq-jump {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-jump li {
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-jump a {
  display: block;
  padding: 14px 4px;
  font-size: 15px;
  color: var(--paper);
  text-decoration: none;
  background-image: linear-gradient(var(--violet), var(--violet));
  background-repeat: no-repeat;
  background-size: 0% 1px;
  background-position: 0 100%;
  transition: background-size .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--violet);
  background-size: 100% 1px;
}

/* ---------- 反馈模板 ---------- */

.page-faq .faq-step--help {
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--r-organic);
  background:
    radial-gradient(520px 260px at 92% 0%, rgba(160, 107, 255, .16), transparent 68%),
    linear-gradient(180deg, rgba(14, 26, 43, .92), rgba(7, 8, 13, .6));
}

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

.page-faq .faq-report li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-line-soft);
  font-size: 14px;
  color: var(--muted);
}

.page-faq .faq-report__k {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-faq .faq-contact {
  margin-top: 24px;
  display: grid;
  gap: 16px;
}

.page-faq .faq-contact p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
  opacity: .9;
}

.page-faq .faq-contact a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--violet);
  transition: color .18s var(--ease);
}

.page-faq .faq-contact a:hover,
.page-faq .faq-contact a:focus-visible {
  color: var(--violet);
}

.page-faq .faq-contact .yb-btn {
  justify-self: start;
}

.page-faq .yb-btn:focus-visible,
.page-faq .yb-crumb a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-flags {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-flags li {
    flex-direction: column;
    gap: 6px;
  }

  .page-faq .faq-act {
    grid-template-columns: 62px minmax(0, 1fr);
    padding: 22px 22px;
  }

  .page-faq .faq-act__num {
    font-size: 32px;
  }

  .page-faq .faq-branch__head {
    grid-template-columns: 26px minmax(0, auto) minmax(0, 1fr) 34px;
    grid-template-areas: "num title tag sign";
    gap: 12px;
  }

  .page-faq .faq-branch__head .yb-tag {
    justify-self: end;
    margin-right: 12px;
  }

  .page-faq .faq-report li {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-map__grid {
    grid-template-columns: var(--faq-side) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}