.page-faq {
  --faq-side-w: 252px;
  --faq-line: rgba(201, 162, 39, 0.32);
  --faq-gold-soft: rgba(201, 162, 39, 0.14);
  --faq-ice-soft: rgba(143, 184, 216, 0.08);
  --faq-text-soft: rgba(245, 240, 233, 0.82);
  --faq-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
  background: var(--color-ink);
  color: var(--color-cream);
  position: relative;
  overflow: hidden;
}

/* ========== Hero 首屏框景 ========== */
.page-faq__hero {
  position: relative;
  border-bottom: 1px solid var(--faq-line);
  overflow: hidden;
}

.page-faq__hero-img,
.page-faq__hero-veil {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.page-faq__hero-img {
  object-fit: cover;
  display: block;
}

.page-faq__hero-veil {
  background:
    linear-gradient(78deg, rgba(11, 12, 16, 0.97) 0%, rgba(11, 12, 16, 0.82) 30%, rgba(11, 12, 16, 0.42) 72%, rgba(11, 12, 16, 0.66) 100%),
    linear-gradient(180deg, rgba(11, 12, 16, 0.1) 0%, rgba(11, 12, 16, 0.55) 100%);
}

.page-faq__hero-body {
  position: relative;
  min-height: 330px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 2.5rem;
  padding-bottom: 2.5rem;
}

.page-faq__hero-body .breadcrumb {
  margin: 0 0 1rem;
  padding: 0;
}

.page-faq__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.8rem, 4.4vw, 2.85rem);
  line-height: 1.22;
  margin: 0.55rem 0 0.55rem;
  max-width: 13em;
  color: var(--color-cream);
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.5);
}

.page-faq__desc {
  max-width: 36em;
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(245, 240, 233, 0.86);
}

/* ========== 工具栏：搜索与分类跳转 ========== */
.page-faq__frame {
  padding-top: 1.5rem;
  padding-bottom: 4rem;
}

.page-faq__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin: 1.25rem 0 2rem;
  padding: 1rem;
  background:
    linear-gradient(180deg, var(--faq-gold-soft), rgba(201, 162, 39, 0.02));
  border: 1px solid var(--faq-line);
  border-left: 4px solid var(--color-gold);
  box-shadow: var(--faq-shadow);
}

.page-faq__search {
  flex: 1 1 260px;
  position: relative;
  min-width: 0;
}

.page-faq__search-mark {
  position: absolute;
  left: 0.95rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.2rem;
  height: 1.2rem;
  color: var(--color-gold);
  pointer-events: none;
}

.page-faq__search-mark svg {
  width: 100%;
  height: 100%;
}

.page-faq__search input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.82rem 1rem 0.82rem 3.1rem;
  background: var(--color-ink);
  border: 1px solid rgba(201, 162, 39, 0.46);
  border-radius: 0;
  color: var(--color-cream);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-faq__search input::placeholder {
  color: rgba(245, 240, 233, 0.5);
}

.page-faq__search input:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.18);
}

.page-faq__cat-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq__cat-link {
  display: inline-block;
  padding: 0.45rem 0.85rem;
  border: 1px solid rgba(143, 184, 216, 0.46);
  color: var(--color-ice);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-heading);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}

.page-faq__cat-link:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.page-faq__cat-link:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* ========== 主体栅格布局 ========== */
.page-faq__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.25rem;
}

/* ========== 侧边栏 ========== */
.page-faq__sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.page-faq__sidebar .toc {
  border: 1px solid var(--faq-line);
  background: var(--faq-gold-soft);
  padding: 1rem;
}

.page-faq__sidebar .toc-list {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  margin: 0;
}

.page-faq__sidebar .toc-title {
  display: block;
  margin-bottom: 0.7rem;
  font-weight: 800;
  color: var(--color-gold);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-faq__sidebar .toc-link {
  flex: 0 0 auto;
  padding: 0.4rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(245, 240, 233, 0.78);
  text-decoration: none;
  border: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.page-faq__sidebar .toc-link:hover {
  color: var(--color-gold);
  border-color: var(--faq-line);
}

.page-faq__side-note {
  padding: 1.1rem;
  background: var(--faq-ice-soft);
  border: 1px solid rgba(143, 184, 216, 0.3);
}

.page-faq__side-note-title {
  display: block;
  color: var(--color-ice);
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}

.page-faq__side-note p {
  margin: 0 0 0.9rem;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--faq-text-soft);
}

/* ========== 问题分组 ========== */
.page-faq__content {
  min-width: 0;
}

.page-faq__group {
  margin-bottom: 3.25rem;
  scroll-margin-top: calc(var(--nav-offset) + 24px);
}

.page-faq__group-title {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 0.4rem;
  padding-bottom: 0.45rem;
  font-size: 1.6rem;
  line-height: 1.3;
  font-weight: 800;
  color: var(--color-cream);
  box-shadow: inset 0 -2px 0 var(--color-gold);
}

.page-faq__group-num {
  display: inline-block;
  background: var(--color-gold);
  color: var(--color-ink);
  font-size: 0.8rem;
  font-weight: 800;
  padding: 0.3rem 0.55rem;
  letter-spacing: 0.05em;
  line-height: 1;
}

.page-faq__group-intro {
  margin: 0.4rem 0 1.35rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--faq-text-soft);
  max-width: 52em;
}

/* ========== 手风琴 ========== */
.page-faq__q {
  margin: 0 0 0.8rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
  border: 1px solid rgba(201, 162, 39, 0.22);
  border-left: 3px solid rgba(201, 162, 39, 0.22);
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}

.page-faq__q[open] {
  border-left-color: var(--color-gold);
  background:
    linear-gradient(180deg, var(--faq-gold-soft), rgba(201, 162, 39, 0.01));
}

.page-faq__q summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 1.1rem 3rem 1.1rem 1.25rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-cream);
  transition: color 0.2s ease;
}

.page-faq__q summary::-webkit-details-marker {
  display: none;
}

.page-faq__q summary:hover {
  color: var(--color-gold);
}

.page-faq__q summary:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: -2px;
}

.page-faq__q summary::before,
.page-faq__q summary::after {
  content: "";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  background: var(--color-gold);
  transition: transform 0.28s ease, opacity 0.28s ease;
}

.page-faq__q summary::before {
  width: 14px;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq__q summary::after {
  width: 2px;
  height: 14px;
  transform: translateY(-50%);
}

.page-faq__q[open] summary::after {
  opacity: 0;
  transform: translateY(-50%) rotate(90deg);
}

.page-faq__a {
  color: var(--faq-text-soft);
  padding: 0 1.4rem 1.3rem;
}

.page-faq__a p {
  margin: 0;
  border-top: 1px dashed rgba(201, 162, 39, 0.22);
  padding-top: 0.85rem;
  font-size: 0.95rem;
  line-height: 1.75;
}

/* ========== 临时记录板块 ========== */
.page-faq__record-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.4rem;
  margin-top: 0.6rem;
}

.page-faq__record-qa {
  min-width: 0;
}

.page-faq__record-qa .page-faq__q:last-child {
  margin-bottom: 0;
}

.page-faq__record-figure {
  margin: 0;
  padding: 0.6rem;
  border: 1px solid var(--faq-line);
  background: var(--faq-ice-soft);
}

.page-faq__record-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-faq__record-figure figcaption {
  padding: 0.75rem 0.3rem 0.3rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-ice);
  letter-spacing: 0.02em;
}

/* ========== 底部 CTA ========== */
.page-faq__cta {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding: 2rem 1.8rem;
  background:
    linear-gradient(115deg, rgba(166, 25, 46, 0.3), rgba(11, 12, 16, 0) 58%),
    linear-gradient(180deg, var(--faq-gold-soft), rgba(201, 162, 39, 0.02));
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 1.3rem) 0, 100% 1.3rem, 100% 100%, 1.3rem 100%, 0 calc(100% - 1.3rem));
}

.page-faq__cta-copy {
  flex: 1 1 280px;
  min-width: 0;
}

.page-faq__cta-title {
  margin: 0 0 0.45rem;
  font-size: 1.35rem;
  line-height: 1.35;
  font-weight: 800;
  color: var(--color-cream);
}

.page-faq__cta-desc {
  margin: 0 0 1.15rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--faq-text-soft);
}

.page-faq__cta-copy .btn {
  margin: 0 0.5rem 0.5rem 0;
}

.page-faq__cta-copy .btn:focus-visible {
  outline: 2px solid var(--color-yellow);
  outline-offset: 2px;
}

.page-faq__cta-mark {
  display: none;
  flex: 0 0 auto;
  width: 58px;
  height: 58px;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-gold);
  transform: rotate(45deg);
  color: var(--color-gold);
}

.page-faq__cta-mark span {
  transform: rotate(-45deg);
  font-size: 1.7rem;
  font-weight: 800;
}

/* ========== 无脚本降级提示 ========== */
.page-faq__q:focus-within {
  border-left-color: var(--color-gold);
}

/* ========== 平板以上断点 ========== */
@media (min-width: 720px) {
  .page-faq__hero-body {
    min-height: 380px;
  }

  .page-faq__toolbar {
    flex-wrap: nowrap;
    padding: 0.9rem 1rem;
  }

  .page-faq__search {
    flex-basis: 320px;
  }

  .page-faq__record-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
    gap: 2rem;
  }

  .page-faq__cta-mark {
    display: flex;
  }
}

/* ========== 桌面断点 ========== */
@media (min-width: 960px) {
  .page-faq__layout {
    grid-template-columns: var(--faq-side-w) minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }

  .page-faq__sidebar {
    position: sticky;
    top: calc(var(--nav-offset) + 20px);
  }

  .page-faq__sidebar .toc-list {
    flex-direction: column;
    gap: 0.15rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq__sidebar .toc-link {
    flex: 0 0 auto;
    padding: 0.45rem 0.6rem;
    border-left: 2px solid transparent;
    border-top: none;
  }

  .page-faq__sidebar .toc-link:hover {
    border-left-color: var(--color-gold);
  }

  .page-faq__group-title {
    font-size: 1.8rem;
  }

  .page-faq__cta {
    padding: 2.4rem 2.6rem;
  }

  .page-faq__cta-title {
    font-size: 1.55rem;
  }
}