.page-faq {
  --faq-rail-w: 272px;
  --faq-ink-line: rgba(10, 22, 34, .1);
}

.page-faq .faq-crumbs {
  padding-top: clamp(16px, 3vw, 30px);
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  padding-top: clamp(22px, 3.4vw, 44px);
  padding-bottom: clamp(26px, 3.4vw, 44px);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(34px, 8vw, 68px);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -.025em;
  color: var(--yx-ink);
  max-width: 20ch;
}

.page-faq .faq-hero__lede {
  margin-top: clamp(16px, 2vw, 24px);
  max-width: 46ch;
  color: var(--yx-slate);
}

.page-faq .faq-stats {
  list-style: none;
  margin: clamp(24px, 3.2vw, 40px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
}

.page-faq .faq-stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--yx-slate);
}

.page-faq .faq-stats b {
  font-family: var(--yx-mono);
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--yx-ink);
  line-height: 1;
}

.page-faq .faq-stats li:first-child b {
  color: var(--yx-orange);
}

/* ---------- 顶部氛围图 ---------- */
.page-faq .faq-banner {
  margin: 0;
  overflow: hidden;
  background: var(--yx-blue);
}

.page-faq .faq-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 460px;
  object-fit: cover;
  object-position: center 42%;
}

/* ---------- 更新时间轴 ---------- */
.page-faq .faq-clock {
  background: var(--yx-paper);
  border-top: 1px solid var(--yx-silver);
  border-bottom: 1px solid var(--yx-silver);
  padding: clamp(22px, 3vw, 36px) 0 clamp(26px, 3.6vw, 44px);
}

.page-faq .faq-clock .yx-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
}

.page-faq .faq-clock .yx-timeline__item {
  position: relative;
  padding: 30px 20px 14px 0;
  border-left: 1px solid var(--yx-silver);
  padding-left: 20px;
}

.page-faq .faq-clock .yx-timeline__item::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--yx-silver);
}

.page-faq .faq-clock .yx-timeline__item:last-child::before {
  background: linear-gradient(90deg, var(--yx-silver) 0%, transparent 78%);
}

.page-faq .faq-clock .yx-timeline__dot {
  position: absolute;
  top: 0;
  left: -5px;
  width: 11px;
  height: 11px;
  border-radius: var(--yx-pill);
  background: var(--yx-amber);
  box-shadow: 0 0 0 5px rgba(255, 194, 75, .2);
}

.page-faq .faq-clock .yx-timeline__node {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  text-align: left;
  cursor: pointer;
  color: var(--yx-ink);
  font-weight: 800;
  letter-spacing: -.01em;
  font-size: 15px;
}

.page-faq .faq-clock .yx-timeline__node:hover .yx-timeline__label {
  color: var(--yx-blue);
}

.page-faq .faq-clock .yx-timeline__label {
  display: inline-block;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: border-color .24s var(--yx-ease), color .24s var(--yx-ease);
}

.page-faq .faq-clock .yx-timeline__node[aria-expanded="true"] .yx-timeline__label,
.page-faq .faq-clock .yx-timeline__node:focus-visible .yx-timeline__label {
  border-bottom-color: var(--yx-cyan);
}

.page-faq .faq-clock .yx-timeline__note {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yx-slate);
  max-width: 30ch;
}

/* ---------- 分组问答 ---------- */
.page-faq .faq-library {
  background: var(--yx-white);
}

.page-faq .faq-switcher {
  display: grid;
  gap: clamp(24px, 3vw, 42px);
}

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

.page-faq .faq-rail .yx-tab {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 18px;
  border: 1px solid var(--yx-silver);
  border-radius: var(--yx-pill);
  background: var(--yx-white);
  color: var(--yx-ink);
  font: inherit;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  text-align: left;
  transition: border-color .22s var(--yx-ease), background .22s var(--yx-ease), color .22s var(--yx-ease);
}

.page-faq .faq-rail .yx-tab:hover {
  border-color: var(--yx-blue);
}

.page-faq .faq-rail .yx-tab.is-active,
.page-faq .faq-rail .yx-tab[aria-selected="true"] {
  border-color: var(--yx-cyan);
  background: var(--yx-cyan-16);
  color: var(--yx-blue);
  box-shadow: inset 0 0 0 1px var(--yx-cyan);
}

.page-faq .faq-count {
  font-family: var(--yx-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--yx-slate);
  letter-spacing: .02em;
}

.page-faq .faq-rail .yx-tab.is-active .faq-count,
.page-faq .faq-rail .yx-tab[aria-selected="true"] .faq-count {
  color: var(--yx-blue);
}

.page-faq .faq-panels {
  min-width: 0;
}

.page-faq .faq-panel__title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--yx-slate);
  text-transform: none;
}

.page-faq .faq-panels .yx-accordion {
  border-top: 1px solid var(--yx-silver);
}

.page-faq .yx-acc {
  border-bottom: 1px solid var(--yx-silver);
}

.page-faq .yx-acc__trigger {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 20px 2px;
  border: 0;
  background: none;
  font: inherit;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--yx-ink);
  text-align: left;
  cursor: pointer;
  transition: color .22s var(--yx-ease);
}

.page-faq .yx-acc__trigger:hover {
  color: var(--yx-blue);
}

.page-faq .yx-acc__icon {
  position: relative;
  flex: none;
  width: 26px;
  height: 26px;
  margin-top: 2px;
  border: 1px solid var(--yx-silver);
  border-radius: var(--yx-pill);
  transition: transform .24s var(--yx-ease), border-color .24s var(--yx-ease);
}

.page-faq .yx-acc__icon::before,
.page-faq .yx-acc__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--yx-blue);
  border-radius: 2px;
}

.page-faq .yx-acc__icon::before {
  width: 11px;
  height: 1.5px;
}

.page-faq .yx-acc__icon::after {
  width: 1.5px;
  height: 11px;
  transition: opacity .24s var(--yx-ease);
}

.page-faq .yx-acc__trigger[aria-expanded="true"] .yx-acc__icon {
  transform: rotate(90deg);
  border-color: var(--yx-cyan);
}

.page-faq .yx-acc__trigger[aria-expanded="true"] .yx-acc__icon::after {
  opacity: 0;
}

.page-faq .yx-acc__panel {
  display: block;
}

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

.page-faq .yx-acc__inner {
  padding: 0 2px 24px 18px;
  border-left: 2px solid transparent;
  color: var(--yx-slate);
  line-height: 1.8;
  font-size: 16px;
  max-width: 62ch;
  transition: border-color .24s var(--yx-ease);
}

.page-faq .yx-acc__trigger[aria-expanded="true"] + .yx-acc__panel .yx-acc__inner {
  border-left-color: var(--yx-cyan);
}

.page-faq .yx-acc__inner p {
  margin: 0;
}

.page-faq .yx-acc__inner a {
  color: var(--yx-blue);
  border-bottom: 1px solid var(--yx-cyan);
  text-decoration: none;
  padding-bottom: 1px;
}

.page-faq .yx-acc__inner a:hover {
  color: var(--yx-orange);
  border-bottom-color: var(--yx-orange);
}

/* ---------- 反馈闭环 ---------- */
.page-faq .faq-loop__head {
  max-width: 52ch;
}

.page-faq .faq-loop__eyebrow {
  color: var(--yx-cyan);
}

.page-faq .faq-loop h2 {
  margin: 12px 0 0;
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--yx-paper);
}

.page-faq .faq-loop__lede {
  margin: 14px 0 0;
  color: var(--yx-silver);
  line-height: 1.8;
}

.page-faq .faq-loop__grid {
  margin-top: clamp(30px, 4vw, 52px);
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}

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

.page-faq .faq-steps li {
  position: relative;
  padding-left: 4px;
}

.page-faq .faq-steps__n {
  display: block;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--yx-cyan);
}

.page-faq .faq-steps h3 {
  margin: 8px 0 6px;
  font-size: 19px;
  font-weight: 800;
  color: var(--yx-paper);
}

.page-faq .faq-steps p {
  margin: 0;
  color: var(--yx-silver);
  line-height: 1.8;
  font-size: 15px;
  max-width: 44ch;
}

.page-faq .faq-steps a {
  color: var(--yx-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 200, .5);
}

.page-faq .faq-steps a:hover {
  color: var(--yx-amber);
  border-bottom-color: var(--yx-amber);
}

.page-faq .faq-loop__card {
  background: rgba(245, 248, 251, .05);
  border: 1px solid rgba(47, 224, 200, .3);
  border-radius: var(--yx-r-lg);
  padding: clamp(22px, 3vw, 34px);
  align-self: start;
}

.page-faq .faq-loop__card .yx-card__eyebrow {
  color: var(--yx-cyan);
}

.page-faq .faq-loop__card .yx-card__title {
  margin: 10px 0 0;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  color: var(--yx-paper);
  line-height: 1.3;
}

.page-faq .faq-loop__card .yx-card__text {
  margin: 14px 0 0;
  color: var(--yx-silver);
  line-height: 1.8;
  font-size: 15px;
}

.page-faq .faq-loop__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--yx-amber);
}

.page-faq .faq-loop__btn {
  margin-top: 22px;
}

/* ---------- 高频速查 ---------- */
.page-faq .faq-quick-wrap {
  background: var(--yx-paper);
}

.page-faq .faq-quick {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 clamp(28px, 4vw, 56px);
}

.page-faq .faq-quick li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 16px;
  align-items: start;
  padding: 16px 0;
  border-top: 1px solid var(--yx-silver);
  line-height: 1.85;
  font-size: 15px;
  color: var(--yx-slate);
}

.page-faq .faq-quick strong {
  font-weight: 800;
  color: var(--yx-ink);
}

.page-faq .faq-quick__text {
  min-width: 0;
}

.page-faq .faq-quick__copy {
  flex: none;
  padding: 4px 12px;
  border: 1px solid var(--yx-silver);
  border-radius: var(--yx-pill);
  background: var(--yx-white);
  font: inherit;
  font-size: 12px;
  color: var(--yx-slate);
  cursor: pointer;
  transition: border-color .2s var(--yx-ease), color .2s var(--yx-ease), background .2s var(--yx-ease);
}

.page-faq .faq-quick__copy:hover {
  border-color: var(--yx-cyan);
  color: var(--yx-blue);
}

.page-faq .faq-quick__copy[data-copied] {
  border-color: var(--yx-cyan);
  background: var(--yx-cyan-16);
  color: var(--yx-blue);
}

/* ---------- 公告板 ---------- */
.page-faq .faq-board {
  position: relative;
  overflow: hidden;
  background: var(--yx-ink);
  padding: clamp(48px, 7vw, 96px) 0;
}

.page-faq .faq-board__texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .18;
  pointer-events: none;
}

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

.page-faq .faq-board__head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-board__head h2 {
  margin: 0;
  font-size: clamp(24px, 3.8vw, 38px);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--yx-paper);
}

.page-faq .faq-board__list {
  list-style: none;
  margin: clamp(24px, 3.4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(199, 208, 218, .22);
  border-radius: var(--yx-r-lg);
  overflow: hidden;
}

.page-faq .faq-board__item {
  background: rgba(5, 9, 15, .78);
  padding: 22px clamp(18px, 2.4vw, 30px);
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-board__label {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  color: var(--yx-paper);
  letter-spacing: -.01em;
}

.page-faq .faq-board__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yx-silver);
}

/* ---------- 更新节奏 ---------- */
.page-faq .faq-rhythm {
  background: var(--yx-white);
}

.page-faq .faq-rhythm__head {
  max-width: 54ch;
}

.page-faq .faq-rhythm h2 {
  margin: 12px 0 0;
  font-size: clamp(26px, 4.2vw, 42px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--yx-ink);
}

.page-faq .faq-rhythm__head .yx-lede {
  margin-top: 14px;
  color: var(--yx-slate);
}

.page-faq .faq-rhythm__grid {
  margin-top: clamp(28px, 3.6vw, 46px);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--yx-gap);
}

.page-faq .faq-rhythm__card {
  border-top: 3px solid var(--yx-cyan);
}

.page-faq .faq-rhythm__n {
  display: block;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--yx-slate);
  margin-bottom: 12px;
}

.page-faq .faq-rhythm__card .yx-card__title {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  color: var(--yx-ink);
}

.page-faq .faq-rhythm__card .yx-card__text {
  margin: 10px 0 0;
  color: var(--yx-slate);
  line-height: 1.8;
  font-size: 15px;
}

.page-faq .faq-rhythm__tail {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--yx-silver);
  color: var(--yx-slate);
  font-size: 15px;
}

.page-faq .faq-rhythm__tail a {
  color: var(--yx-blue);
  text-decoration: none;
  border-bottom: 1px solid var(--yx-cyan);
  padding-bottom: 1px;
}

.page-faq .faq-rhythm__tail a:hover {
  color: var(--yx-orange);
  border-bottom-color: var(--yx-orange);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-clock .yx-timeline {
    grid-template-columns: repeat(2, 1fr);
    column-gap: clamp(20px, 3vw, 40px);
  }

  .page-faq .faq-quick {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-board__list {
    grid-template-columns: 1fr 1fr;
  }

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

  .page-faq .faq-loop__grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-clock .yx-timeline {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-switcher {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 8px;
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-rail .yx-tab {
    width: 100%;
  }

  .page-faq .faq-steps {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .page-faq .faq-loop__grid {
    grid-template-columns: 1.2fr .8fr;
    gap: clamp(36px, 5vw, 72px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .yx-acc__icon,
  .page-faq .yx-acc__inner,
  .page-faq .yx-acc__trigger,
  .page-faq .faq-rail .yx-tab,
  .page-faq .faq-quick__copy,
  .page-faq .faq-clock .yx-timeline__label {
    transition: none;
  }
}