.page-faq {
  --faq-gap: clamp(22px, 4vw, 44px);
  --faq-card: rgba(18, 58, 94, 0.55);
  --faq-card-paper: rgba(255, 255, 255, 0.72);
  display: block;
}

/* ---------- 首屏：声明 + 分组跳转 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(28px, 6vw, 72px);
  padding-bottom: clamp(30px, 6vw, 64px);
}

.page-faq .faq-hero__crumb {
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.page-faq .faq-hero__title {
  margin: 10px 0 18px;
  font-weight: 900;
  letter-spacing: 0.04em;
  line-height: 1.12;
  max-width: 14em;
}

.page-faq .faq-hero__text {
  max-width: 34em;
}

.page-faq .faq-hero__actions {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-hero__map {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border-top: 1px solid var(--yl-line);
}

.page-faq .faq-jump {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 14px;
  row-gap: 4px;
  padding: 16px 14px 16px 18px;
  border-bottom: 1px solid var(--yl-line);
  text-decoration: none;
  color: inherit;
  transition: background-color 0.28s var(--yl-ease), padding-left 0.28s var(--yl-ease);
}

.page-faq .faq-jump::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: var(--yl-gold);
  transform: translateY(-50%);
  transition: width 0.28s var(--yl-ease), height 0.28s var(--yl-ease);
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  background: rgba(226, 179, 60, 0.08);
  padding-left: 24px;
}

.page-faq .faq-jump:hover::before,
.page-faq .faq-jump:focus-visible::before {
  width: 8px;
  height: 8px;
}

.page-faq .faq-jump__num {
  grid-row: 1 / 3;
  align-self: center;
  font-size: 13px;
  color: var(--yl-gold);
  letter-spacing: 0.06em;
}

.page-faq .faq-jump__name {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.02em;
}

.page-faq .faq-jump__hint {
  font-size: 13px;
  line-height: 1.6;
  color: var(--yl-text-faint);
}

/* ---------- 首图 ---------- */
.page-faq .faq-visual {
  padding-top: clamp(10px, 3vw, 28px);
  padding-bottom: clamp(24px, 5vw, 56px);
}

.page-faq .faq-visual__figure {
  border-radius: var(--yl-radius-lg);
  overflow: hidden;
}

/* ---------- 分组通用 ---------- */
.page-faq .faq-group {
  padding-top: clamp(44px, 7vw, 88px);
  padding-bottom: clamp(44px, 7vw, 88px);
}

.page-faq .faq-group__head {
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-faq .faq-group__more {
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-group__more a {
  color: var(--yl-gold-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .yl-section--paper .faq-group__more a {
  color: var(--yl-tide);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 2px;
  border-top: 1px solid var(--yl-line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--yl-line);
  padding: 4px 0 4px 0;
}

.page-faq .faq-item__q {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 16px 46px 16px 22px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.02em;
  transition: color 0.24s var(--yl-ease);
}

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

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: 6px;
  height: 0;
  background: var(--yl-gold);
  border-radius: 3px;
  transition: height 0.3s var(--yl-ease);
}

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--yl-font-mono);
  font-size: 18px;
  color: var(--yl-gold);
  transition: transform 0.3s var(--yl-ease), opacity 0.3s var(--yl-ease);
}

.page-faq .faq-item[open] .faq-item__q::before {
  height: 24px;
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
}

.page-faq .faq-item__q:hover {
  color: var(--yl-gold-soft);
}

.page-faq .faq-item__a {
  padding: 0 46px 18px 22px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--yl-text-soft);
}

.page-faq .faq-item__a p {
  margin: 0 0 8px;
  max-width: 36em;
}

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

/* 深底分组内文字更亮一点 */
.page-faq .faq-list--dark .faq-item__a {
  color: var(--yl-text-soft);
}

/* ---------- 反馈区：双栏 ---------- */
.page-faq .faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-side {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--yl-line-gold);
  border-radius: var(--yl-radius);
  background: linear-gradient(160deg, rgba(226, 179, 60, 0.12), rgba(18, 58, 94, 0.28));
}

.page-faq .faq-side__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-side__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--yl-text-soft);
}

.page-faq .faq-side__list .yl-mono {
  color: var(--yl-gold);
  font-size: 13px;
  line-height: 1.9;
}

.page-faq .faq-side__note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--yl-text-faint);
}

.page-faq .faq-side__btn {
  margin-top: 20px;
}

/* ---------- 设备区 ---------- */
.page-faq .faq-device {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  border-top: 1px solid var(--yl-line);
  border-bottom: 1px solid var(--yl-line);
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-faq .faq-device__col {
  padding: 18px 4px;
  border-bottom: 1px solid var(--yl-line);
}

.page-faq .faq-device__col:last-child {
  border-bottom: none;
}

.page-faq .faq-device__tag {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--yl-celadon);
}

.page-faq .faq-device__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--yl-text-soft);
  max-width: 32em;
}

.page-faq .faq-device__list {
  margin-top: 4px;
}

/* ---------- 兜底区 ---------- */
.page-faq .faq-more {
  padding-top: clamp(44px, 7vw, 88px);
  padding-bottom: clamp(52px, 8vw, 100px);
}

.page-faq .faq-more__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-faq .faq-more__title {
  margin: 0 0 14px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.page-faq .faq-more__desc {
  max-width: 32em;
}

.page-faq .faq-more__actions {
  margin-top: 4px;
}

.page-faq .faq-more__figure {
  border-radius: var(--yl-radius);
  overflow: hidden;
}

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

/* ---------- 图片统一约束 ---------- */
.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero__map {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-jump:nth-child(odd) {
    border-right: 1px solid var(--yl-line);
  }

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

  .page-faq .faq-device__col {
    border-bottom: none;
    border-right: 1px solid var(--yl-line);
    padding: 20px 22px 20px 0;
  }

  .page-faq .faq-device__col:last-child {
    border-right: none;
    padding-right: 0;
  }

  .page-faq .faq-device__col:not(:first-child) {
    padding-left: 22px;
  }

  .page-faq .faq-more__inner {
    grid-template-columns: 1.2fr 0.8fr;
    grid-template-areas:
      "text figure"
      "actions figure";
    align-items: start;
  }

  .page-faq .faq-more__text {
    grid-area: text;
  }

  .page-faq .faq-more__actions {
    grid-area: actions;
  }

  .page-faq .faq-more__figure {
    grid-area: figure;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(40px, 6vw, 96px);
  }

  .page-faq .faq-hero__map {
    grid-template-columns: 1fr;
    border-top: 1px solid var(--yl-line);
  }

  .page-faq .faq-jump:nth-child(odd) {
    border-right: none;
  }

  .page-faq .faq-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.85fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-item__q {
    font-size: 18px;
    padding-left: 26px;
  }

  .page-faq .faq-item__a {
    padding-left: 26px;
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump,
  .page-faq .faq-item__q,
  .page-faq .faq-item__q::before,
  .page-faq .faq-item__q::after {
    transition: none;
  }
}