.page-faq {
  --faq-gap: clamp(18px, 3vw, 32px);
  --faq-block-pad: clamp(40px, 7vw, 88px);
  display: block;
  background: var(--yf-bg);
  color: var(--yf-ink);
  overflow-x: hidden;
}

.page-faq .faq-crumb {
  padding-top: 18px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 2px solid var(--yf-line);
  background: var(--yf-bg);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(115% 85% at 84% 4%, rgba(47, 232, 198, .2), transparent 58%),
    radial-gradient(85% 70% at 6% 96%, rgba(255, 78, 43, .15), transparent 62%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .45;
  background-image:
    linear-gradient(to right, rgba(28, 58, 49, .6) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(28, 58, 49, .6) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(85% 78% at 32% 18%, #000 0%, transparent 76%);
  mask-image: radial-gradient(85% 78% at 32% 18%, #000 0%, transparent 76%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(28px, 5vw, 64px) clamp(30px, 5vw, 62px);
}

.page-faq .faq-hero__title {
  font-family: var(--yf-cond);
  font-weight: 200;
  font-size: clamp(36px, 7.2vw, 88px);
  line-height: 1.06;
  letter-spacing: .008em;
  color: var(--yf-ink);
  margin: 14px 0 0;
  max-width: 15ch;
}

.page-faq .faq-hero__lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.85;
  color: var(--yf-muted);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-jump__link {
  font-family: var(--yf-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1;
  padding: 10px 14px;
  color: var(--yf-cyan);
  background: var(--yf-panel);
  border: 2px solid var(--yf-line);
  text-decoration: none;
  transition: border-color .28s var(--yf-ease), color .28s var(--yf-ease), transform .28s var(--yf-ease), box-shadow .28s var(--yf-ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--yf-ink);
  border-color: var(--yf-cyan);
  transform: translate(-2px, -2px);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, .5);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-block {
  padding-block: var(--faq-block-pad);
}

.page-faq .faq-block + .faq-block {
  border-top: 2px solid var(--yf-line);
}

.page-faq .faq-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  align-items: start;
  margin-bottom: clamp(24px, 3.2vw, 42px);
}

.page-faq .faq-head__num {
  font-family: var(--yf-mono);
  font-size: clamp(26px, 3.8vw, 50px);
  font-weight: 700;
  line-height: .92;
  color: var(--yf-orange);
  letter-spacing: -.02em;
}

.page-faq .faq-head__text {
  position: relative;
  padding-bottom: 16px;
  min-width: 0;
}

.page-faq .faq-head__text::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(200px, 46%);
  height: 3px;
  background: linear-gradient(90deg, var(--yf-orange), var(--yf-cyan));
}

.page-faq .faq-head__title {
  font-family: var(--yf-cond);
  font-weight: 200;
  font-size: clamp(24px, 3.4vw, 44px);
  line-height: 1.16;
  letter-spacing: .01em;
  color: var(--yf-ink);
  margin: 0;
}

.page-faq .faq-head__kicker {
  margin: 10px 0 0;
  font-family: var(--yf-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--yf-muted);
}

/* ---------- 场景区 ---------- */
.page-faq .faq-scenes__lead {
  display: grid;
  gap: var(--faq-gap);
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-scenes__intro {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--yf-muted);
  border-left: 3px solid var(--yf-cyan);
  padding-left: 16px;
}

.page-faq .faq-scenes__intro a {
  color: var(--yf-cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-scenes__media {
  margin: 0;
  aspect-ratio: 4 / 3;
  width: 100%;
}

.page-faq .faq-scenes__media .yf-media__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

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

.page-faq .faq-scene {
  background: var(--yf-panel);
  border: 2px solid var(--yf-line);
  transition: border-color .28s var(--yf-ease), box-shadow .28s var(--yf-ease), transform .28s var(--yf-ease);
}

.page-faq .faq-scene:hover {
  border-color: var(--yf-cyan-soft);
}

.page-faq .faq-scene[open] {
  border-color: var(--yf-cyan);
  box-shadow: var(--yf-hard-shadow);
  transform: translate(-2px, -2px);
}

.page-faq .faq-scene__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-scene__idx {
  font-family: var(--yf-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  padding: 3px 7px;
  color: var(--yf-cyan);
  border: 1px solid var(--yf-line);
  transition: color .28s var(--yf-ease), background-color .28s var(--yf-ease), border-color .28s var(--yf-ease);
}

.page-faq .faq-scene[open] .faq-scene__idx {
  color: var(--yf-bg);
  background: var(--yf-cyan);
  border-color: var(--yf-cyan);
}

.page-faq .faq-scene__name {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--yf-ink);
  min-width: 0;
}

.page-faq .faq-scene__hint {
  position: relative;
  width: 16px;
  height: 16px;
  flex: none;
}

.page-faq .faq-scene__hint::before,
.page-faq .faq-scene__hint::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: var(--yf-cyan);
  transition: transform .28s var(--yf-ease);
}

.page-faq .faq-scene__hint::before {
  transform: translateY(-50%);
}

.page-faq .faq-scene__hint::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-scene[open] .faq-scene__hint::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-scene__body {
  border-top: 2px solid var(--yf-line);
  padding: 18px 16px 20px;
}

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

.page-faq .faq-flow__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
}

.page-faq .faq-flow__num {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-family: var(--yf-mono);
  font-size: 12px;
  color: var(--yf-cyan);
  border: 2px solid var(--yf-cyan);
}

.page-faq .faq-flow__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--yf-muted);
}

/* ---------- 指标区 ---------- */
.page-faq .faq-block--metrics {
  position: relative;
  border-top: 0;
}

.page-faq .faq-block--metrics::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--yf-orange), rgba(47, 232, 198, .35) 55%, transparent 92%);
}

.page-faq .faq-metrics__layout {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: start;
}

.page-faq .faq-tabs {
  position: relative;
  min-width: 0;
}

.page-faq .faq-tabs__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.page-faq .faq-tabs__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .faq-tabs__label {
  cursor: pointer;
  font-family: var(--yf-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  padding: 10px 14px;
  color: var(--yf-muted);
  background: transparent;
  border: 2px solid var(--yf-line);
  transition: color .26s var(--yf-ease), border-color .26s var(--yf-ease), background-color .26s var(--yf-ease);
}

.page-faq .faq-tabs__label:hover {
  color: var(--yf-ink);
  border-color: var(--yf-cyan-soft);
}

.page-faq .faq-tabs__radio:focus-visible ~ .faq-tabs__bar {
  outline: 2px solid var(--yf-cyan-soft);
  outline-offset: 4px;
}

.page-faq .faq-tabs__radio:nth-of-type(1):checked ~ .faq-tabs__bar .faq-tabs__label:nth-child(1),
.page-faq .faq-tabs__radio:nth-of-type(2):checked ~ .faq-tabs__bar .faq-tabs__label:nth-child(2),
.page-faq .faq-tabs__radio:nth-of-type(3):checked ~ .faq-tabs__bar .faq-tabs__label:nth-child(3),
.page-faq .faq-tabs__radio:nth-of-type(4):checked ~ .faq-tabs__bar .faq-tabs__label:nth-child(4) {
  color: var(--yf-bg);
  background: var(--yf-cyan);
  border-color: var(--yf-cyan);
}

.page-faq .faq-tabs__panel {
  display: none;
  border-left: 4px solid var(--yf-cyan);
  padding: 2px 0 2px 18px;
  animation: faq-fade .3s var(--yf-ease) both;
}

.page-faq .faq-tabs__radio:nth-of-type(1):checked ~ .faq-tabs__panels .faq-tabs__panel:nth-child(1),
.page-faq .faq-tabs__radio:nth-of-type(2):checked ~ .faq-tabs__panels .faq-tabs__panel:nth-child(2),
.page-faq .faq-tabs__radio:nth-of-type(3):checked ~ .faq-tabs__panels .faq-tabs__panel:nth-child(3),
.page-faq .faq-tabs__radio:nth-of-type(4):checked ~ .faq-tabs__panels .faq-tabs__panel:nth-child(4) {
  display: block;
}

@keyframes faq-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-metric__name {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--yf-ink);
}

.page-faq .faq-bar {
  display: block;
  width: 100%;
  max-width: 280px;
  height: auto;
  margin-bottom: 14px;
}

.page-faq .faq-metric__text {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.88;
  color: var(--yf-muted);
  max-width: 52ch;
}

.page-faq .faq-metric__use {
  margin: 0;
  display: inline-block;
  font-family: var(--yf-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--yf-amber);
  border: 1px solid rgba(255, 179, 71, .45);
  padding: 6px 10px;
}

.page-faq .faq-metrics__media {
  margin: 0;
  aspect-ratio: 1 / 1;
  width: 100%;
}

.page-faq .faq-metrics__media .yf-media__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 射手榜 ---------- */
.page-faq .faq-scorers {
  display: grid;
  gap: 14px;
}

.page-faq .faq-scorers__col {
  background: var(--yf-panel);
  border: 2px solid var(--yf-line);
  border-top: 4px solid var(--yf-cyan);
  padding: 20px 18px 22px;
  transition: border-color .28s var(--yf-ease), transform .28s var(--yf-ease), box-shadow .28s var(--yf-ease);
}

.page-faq .faq-scorers__col:hover {
  border-color: var(--yf-cyan-soft);
  border-top-color: var(--yf-orange);
  transform: translate(-2px, -2px);
  box-shadow: var(--yf-hard-shadow);
}

.page-faq .faq-scorers__key {
  margin: 0;
  font-family: var(--yf-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--yf-orange);
}

.page-faq .faq-scorers__title {
  margin: 10px 0 12px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--yf-ink);
}

.page-faq .faq-scorers__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--yf-muted);
}

.page-faq .faq-scorers__note {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--yf-muted);
  border-left: 3px solid var(--yf-amber);
  padding-left: 16px;
}

.page-faq .faq-scorers__note a {
  color: var(--yf-cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 自查流程 ---------- */
.page-faq .faq-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-faq .faq-check__step {
  position: relative;
  min-width: 0;
}

.page-faq .faq-check__step + .faq-check__step::before {
  content: "";
  position: absolute;
  left: 24px;
  top: -20px;
  width: 2px;
  height: 20px;
  background: repeating-linear-gradient(180deg, var(--yf-orange) 0 4px, transparent 4px 8px);
}

.page-faq .faq-check__node {
  background: var(--yf-panel);
  border: 2px solid var(--yf-line);
  height: 100%;
  transition: border-color .28s var(--yf-ease);
}

.page-faq .faq-check__node[open] {
  border-color: var(--yf-orange);
}

.page-faq .faq-check__summary {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-check__num {
  font-family: var(--yf-mono);
  font-size: 13px;
  color: var(--yf-orange);
  border-bottom: 2px solid var(--yf-orange);
  line-height: 1.6;
}

.page-faq .faq-check__label {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--yf-ink);
  min-width: 0;
}

.page-faq .faq-check__text {
  margin: 0;
  padding: 0 16px 18px 16px;
  border-top: 2px solid var(--yf-line);
  padding-top: 14px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--yf-muted);
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-support__grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

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

.page-faq .faq-prep__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  border-left: 3px solid var(--yf-cyan);
  padding-left: 16px;
}

.page-faq .faq-prep__num {
  font-family: var(--yf-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--yf-orange);
}

.page-faq .faq-prep__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--yf-ink);
}

.page-faq .faq-support__contact {
  background: var(--yf-panel);
  border: 2px solid var(--yf-line);
  padding: 20px 18px 22px;
}

.page-faq .faq-support__row {
  display: grid;
  gap: 4px;
  margin: 0 0 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--yf-line);
}

.page-faq .faq-support__row:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-support__label {
  font-family: var(--yf-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--yf-muted);
}

.page-faq .faq-support__value {
  font-family: var(--yf-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--yf-amber);
  word-break: break-word;
}

.page-faq .faq-support__hint,
.page-faq .faq-support__links {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--yf-muted);
}

.page-faq .faq-support__links a {
  color: var(--yf-cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-scenes__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-scene__summary {
    padding: 18px 20px;
  }

  .page-faq .faq-scene__body {
    padding: 20px 20px 24px;
  }

  .page-faq .faq-support__contact {
    padding: 24px 22px 26px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-scenes__lead {
    grid-template-columns: 1fr 1.05fr;
    align-items: center;
  }

  .page-faq .faq-check {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq-check__step + .faq-check__step::before {
    left: -24px;
    top: 30px;
    width: 24px;
    height: 2px;
    background: repeating-linear-gradient(90deg, var(--yf-orange) 0 4px, transparent 4px 8px);
  }

  .page-faq .faq-support__grid {
    grid-template-columns: 1.25fr 1fr;
    gap: clamp(24px, 4vw, 52px);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-metrics__layout {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  }

  .page-faq .faq-metrics__media {
    position: sticky;
    top: calc(var(--yf-header-h) + 24px);
  }

  .page-faq .faq-hero__title {
    letter-spacing: .005em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tabs__panel {
    animation: none;
  }

  .page-faq .faq-jump__link,
  .page-faq .faq-scene,
  .page-faq .faq-scorers__col,
  .page-faq .faq-scene__hint::before,
  .page-faq .faq-scene__hint::after {
    transition: none;
  }

  .page-faq .faq-jump__link:hover,
  .page-faq .faq-jump__link:focus-visible,
  .page-faq .faq-scene[open],
  .page-faq .faq-scorers__col:hover {
    transform: none;
  }
}