/* ============================================================
   帮助中心 · 页面专属样式（作用域 .page-faq）
   ============================================================ */

.page-faq {
  --faq-accent: var(--yf-jade);
  --faq-card-pad: 18px;
  background: var(--yf-void);
  color: var(--yf-ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 24px 0 54px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--yf-line) 0%, var(--yf-jade) 62%, var(--yf-gold) 100%);
  opacity: 0.6;
}

.page-faq .faq-hero__inner {
  position: relative;
}

.page-faq .faq-hero__inner::before {
  content: "";
  position: absolute;
  top: -90px;
  right: -60px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle at 50% 50%, rgba(54, 191, 166, 0.16) 0%, rgba(54, 191, 166, 0) 68%);
  pointer-events: none;
}

.page-faq .faq-hero__eyebrow {
  margin: 26px 0 0;
}

.page-faq .faq-hero__title {
  position: relative;
  max-width: 22ch;
  margin: 14px 0 20px;
  font-size: clamp(30px, 6.4vw, 46px);
  line-height: 1.18;
}

.page-faq .faq-hero__lead {
  max-width: 58ch;
  margin: 0;
  color: var(--yf-muted);
}

.page-faq .faq-hero__quick {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__quick a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border: 1px solid var(--yf-line);
  background: var(--yf-float);
  color: var(--yf-ink);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: transform 0.2s var(--yf-ease), border-color 0.2s var(--yf-ease), background-color 0.2s var(--yf-ease);
}

.page-faq .faq-hero__quick a:hover,
.page-faq .faq-hero__quick a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--yf-gold);
  background: #1A2438;
}

.page-faq .faq-hero__qno {
  flex: none;
  font-family: var(--yf-font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--yf-gold);
  letter-spacing: 0.04em;
}

/* ---------- 顶部氛围图 ---------- */

.page-faq .faq-visual {
  margin: 0;
  border-top: 1px solid var(--yf-line);
  border-bottom: 1px solid var(--yf-line);
}

.page-faq .faq-visual .yf-media {
  border: 0;
  aspect-ratio: 16 / 5;
}

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

/* ---------- 主体分栏 ---------- */

.page-faq .faq-manual {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: 44px;
  padding-bottom: 88px;
}

/* ---------- 左侧目录 ---------- */

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

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-family: var(--yf-font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--yf-muted);
}

.page-faq .faq-toc__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid var(--yf-line);
  background: var(--yf-panel);
  color: var(--yf-muted);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.2s var(--yf-ease), border-color 0.2s var(--yf-ease), background-color 0.2s var(--yf-ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--yf-ink);
  border-color: var(--yf-jade);
  background: var(--yf-float);
}

.page-faq .faq-toc__link[aria-current="true"] {
  color: var(--yf-ink);
  border-color: var(--yf-gold);
  background: var(--yf-float);
}

.page-faq .faq-toc__no {
  font-family: var(--yf-font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--yf-gold);
}

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

/* ---------- 分组 ---------- */

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

.page-faq .faq-group {
  margin-bottom: 56px;
  scroll-margin-top: calc(var(--yf-header-h) + 24px);
}

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

.page-faq .faq-group--gold { --faq-accent: var(--yf-gold); }
.page-faq .faq-group--jade { --faq-accent: var(--yf-jade); }
.page-faq .faq-group--dim  { --faq-accent: var(--yf-muted); }

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--faq-accent);
}

.page-faq .faq-group__no {
  flex: none;
  font-family: var(--yf-font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--faq-accent);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 3.4vw, 26px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--yf-ink);
}

/* ---------- 答案卡片 ---------- */

.page-faq .faq-list {
  display: block;
}

.page-faq .faq-card {
  border: 1px solid var(--yf-line);
  background: var(--yf-panel);
  transition: background-color 0.2s var(--yf-ease), border-color 0.2s var(--yf-ease);
}

.page-faq .faq-card + .faq-card {
  border-top: 0;
}

.page-faq .faq-card:hover {
  border-color: #33425F;
}

.page-faq .faq-card[open] {
  background: var(--yf-float);
  border-color: #33425F;
}

.page-faq .faq-card__q {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: var(--faq-card-pad) 20px;
  cursor: pointer;
  list-style: none;
  transition: color 0.2s var(--yf-ease);
}

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

.page-faq .faq-card__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--yf-font-mono);
  font-size: 18px;
  font-weight: 500;
  line-height: 1;
  color: var(--faq-accent);
}

.page-faq .faq-card[open] .faq-card__q::after {
  content: "\2212";
}

.page-faq .faq-card__q:focus-visible {
  outline: 2px solid var(--yf-gold);
  outline-offset: -2px;
}

.page-faq .faq-card__label {
  flex: none;
  padding: 2px 8px;
  border: 1px solid var(--faq-accent);
  font-family: var(--yf-font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--faq-accent);
}

.page-faq .faq-card__text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--yf-ink);
}

.page-faq .faq-card__a {
  padding: 0 20px var(--faq-card-pad);
}

.page-faq .faq-card__a p {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--yf-line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--yf-muted);
}

.page-faq .faq-card__a .yf-link {
  color: var(--yf-jade-hi);
}

/* ---------- 内嵌示意图 ---------- */

.page-faq .faq-figure {
  margin: 26px 0 0;
}

.page-faq .faq-figure .yf-media {
  aspect-ratio: 16 / 9;
}

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

.page-faq .faq-figure .yf-figure__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--yf-muted);
}

/* ---------- 联系区块 ---------- */

.page-faq .faq-cta {
  padding: 24px 20px;
  border: 1px solid var(--yf-line);
  border-left: 2px solid var(--yf-jade);
  background: var(--yf-float);
}

.page-faq .faq-cta__text {
  max-width: 66ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--yf-muted);
}

.page-faq .faq-cta__key {
  font-family: var(--yf-font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--yf-ink);
  word-break: break-all;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-hero__quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hero {
    padding-bottom: 64px;
  }

  .page-faq .faq-manual {
    gap: 44px;
    padding-top: 56px;
    padding-bottom: 108px;
  }

  .page-faq .faq-cta {
    padding: 30px 28px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-manual {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 60px;
    padding-top: 76px;
    padding-bottom: 128px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--yf-header-h) + 28px);
    align-self: start;
    padding-right: 18px;
    border-right: 1px solid var(--yf-line);
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-faq .faq-toc__link {
    padding: 10px 12px 10px 14px;
    border: 0;
    border-left: 1px solid var(--yf-line);
    background: transparent;
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    border-left-color: var(--yf-jade);
    background: var(--yf-panel);
  }

  .page-faq .faq-toc__link[aria-current="true"] {
    border-left-color: var(--yf-gold);
    background: var(--yf-panel);
  }

  .page-faq .faq-group {
    margin-bottom: 72px;
  }

  .page-faq .faq-card__q {
    padding: 20px 26px;
  }

  .page-faq .faq-card__a {
    padding: 0 26px 22px;
  }
}
</final>