/* ===== 问询处 · 页面专属样式（作用域 .page-faq） ===== */

.page-faq {
  display: block;
  background: var(--ink);
}

.page-faq .faq-hero {
  display: grid;
  gap: clamp(14px, 2.4vw, 24px);
  padding-top: clamp(22px, 4vw, 42px);
  padding-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--copper);
}

.page-faq h1 {
  margin: 0;
  font-size: var(--fs-h1);
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--cream);
  transform: scaleY(.94);
  transform-origin: left bottom;
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 62ch;
}

.page-faq .faq-hero-figure {
  margin: 0;
}

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

/* ---- 问答分组：左展签 + 右清单 ---- */

.page-faq .faq-group {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.6vw, 30px);
  padding-block: clamp(24px, 4vw, 48px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-left: 14px;
  border-left: 2px solid var(--line-soft);
  transition: border-color var(--t-mid) ease, color var(--t-mid) ease;
}

.page-faq .faq-label .placard-num {
  color: var(--copper);
  font-size: 12px;
  letter-spacing: .18em;
}

.page-faq .faq-label h2 {
  margin: 0;
  font-size: var(--fs-h3);
  line-height: 1.35;
  color: var(--cream);
  letter-spacing: -.01em;
}

.page-faq .faq-label-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--stone);
}

.page-faq .faq-group:has(.faq-item[open]) .faq-label {
  border-left-color: var(--copper-bright);
}

.page-faq .faq-group:has(.faq-item[open]) .faq-label h2 {
  color: var(--copper-bright);
}

/* ---- 折叠问答条目 ---- */

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
  background: transparent;
}

.page-faq .faq-item:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 2px;
  list-style: none;
  cursor: pointer;
  font-size: var(--fs-h4);
  line-height: 1.55;
  color: var(--silver);
  transition: color var(--t-fast) ease;
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.5;
  color: var(--copper);
  transition: color var(--t-fast) ease;
}

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

.page-faq .faq-q:hover,
.page-faq .faq-q:focus-visible {
  color: var(--copper-bright);
}

.page-faq .faq-item[open] .faq-q {
  color: var(--cream);
}

.page-faq .faq-a {
  max-width: 68ch;
  padding: 0 2px 18px;
  color: var(--silver);
  font-size: var(--fs-body);
  line-height: 1.75;
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

/* 回答末尾的小路标 */

.page-faq .faq-route {
  margin-top: 12px;
  font-size: 14px;
}

.page-faq .faq-route a {
  display: inline-block;
  color: var(--copper);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease;
}

.page-faq .faq-route a::before {
  content: "→ ";
  font-family: var(--font-mono);
  color: var(--copper-bright);
}

.page-faq .faq-route a:hover,
.page-faq .faq-route a:focus-visible {
  color: var(--copper-bright);
  border-bottom-color: var(--copper-bright);
}

/* ---- 入口路径竖版图 ---- */

.page-faq .faq-plate {
  display: grid;
  gap: 12px;
  margin: clamp(26px, 4.4vw, 52px) 0 0;
  padding-block: clamp(20px, 3.4vw, 34px);
}

.page-faq .faq-plate img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border: 1px solid var(--line-soft);
  background: var(--ink-2);
}

.page-faq .faq-plate .figure-cap {
  max-width: 40ch;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---- 底部快速跳转长条 ---- */

.page-faq .faq-index {
  padding-block: clamp(26px, 4.4vw, 46px) clamp(34px, 5vw, 60px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-index-title {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-size: var(--fs-h3);
  color: var(--cream);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-index-list li {
  min-width: 0;
  background: var(--ink);
}

.page-faq .faq-index-list a {
  display: block;
  padding: 14px 12px;
  color: var(--silver);
  text-decoration: none;
  font-size: 14.5px;
  line-height: 1.5;
  transition: color var(--t-fast) ease, background-color var(--t-fast) ease;
}

.page-faq .faq-index-list .mono {
  display: block;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--copper);
  margin-bottom: 5px;
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--copper-bright);
  background: var(--bronze);
}

.page-faq .faq-index-note {
  margin: clamp(14px, 2vw, 20px) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .faq-index-note a {
  color: var(--copper);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-index-note a:hover,
.page-faq .faq-index-note a:focus-visible {
  color: var(--copper-bright);
}

/* ---- 桌面端栅格 ---- */

@media (min-width: 880px) {
  .page-faq .faq-group {
    grid-template-columns: minmax(200px, 272px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-faq .faq-label {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-faq .faq-q {
    padding: 17px 2px;
  }

  .page-faq .faq-plate {
    grid-template-columns: 300px minmax(0, 1fr);
    align-items: end;
    gap: clamp(20px, 3vw, 40px);
  }

  .page-faq .faq-plate .figure-cap {
    padding-bottom: 6px;
  }

  .page-faq .faq-index-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-plate img {
    max-width: 320px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-label,
  .page-faq .faq-q,
  .page-faq .faq-q::after,
  .page-faq .faq-route a,
  .page-faq .faq-index-list a {
    transition: none;
  }
}