.page-faq {
  background: var(--color-fog);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0;
  font-size: 0.875rem;
  color: var(--color-night);
}

.page-faq .faq-crumb a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

.page-faq .faq-crumb a:hover {
  color: var(--color-energy);
  text-decoration: underline;
}

.page-faq .faq-crumb-sep {
  margin: 0 0.5rem;
  color: var(--color-line);
}

/* ---------- 顶部横幅 ---------- */
.page-faq .faq-lead {
  background:
    linear-gradient(135deg, rgba(28, 103, 88, 0.35), rgba(13, 27, 42, 0.9)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.04) 0 2px, transparent 2px 12px),
    var(--color-night);
  border-bottom: 6px solid var(--color-energy);
  padding: 2rem 1.25rem 2.5rem;
  color: var(--color-white);
}

.page-faq .faq-lead-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.75rem;
  font-family: var(--font-headline);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-energy);
}

.page-faq .faq-lead h1 {
  margin: 0;
  font-family: var(--font-headline);
  font-size: 2.8rem;
  line-height: 0.95;
  color: var(--color-white);
}

.page-faq .faq-hl {
  display: block;
  color: var(--color-energy);
}

.page-faq .faq-lead-desc {
  max-width: 34rem;
  margin: 1.1rem 0 0;
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  line-height: 1.7;
}

.page-faq .faq-lead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero-btn {
  border-color: var(--color-white);
  color: var(--color-white);
}

.page-faq .faq-hero-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 2rem 0 0;
  max-width: 30rem;
}

.page-faq .faq-stat {
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.22);
  padding: 0.75rem;
  text-align: center;
}

.page-faq .faq-stat dt {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-stat dd {
  margin: 0;
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: 1.75rem;
  color: var(--color-white);
}

.page-faq .faq-lead-figure {
  margin: 0;
  align-self: center;
  position: relative;
}

.page-faq .faq-lead-figure img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  border: 4px solid var(--color-white);
  box-shadow: 12px 12px 0 rgba(0, 0, 0, 0.25);
}

.page-faq .faq-lead-figure figcaption {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.65);
  text-align: right;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding-top: 2rem;
  padding-bottom: 4rem;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  position: relative;
  align-self: start;
  background: var(--color-white);
  border: 3px solid var(--color-night);
  box-shadow: 6px 6px 0 var(--color-line);
  padding: 1.25rem 1.25rem 1rem;
}

.page-faq .faq-index::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--color-primary) 0 50%, var(--color-energy) 50% 100%);
}

.page-faq .faq-index h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--color-energy);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index-list li {
  flex: 0 0 auto;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  background: var(--color-fog);
  border: 2px solid var(--color-line);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-night);
  text-decoration: none;
  white-space: nowrap;
}

.page-faq .faq-index-list a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.page-faq .faq-idx-num {
  font-family: var(--font-numeric);
  font-weight: 700;
  color: var(--color-primary);
}

.page-faq .faq-index-note {
  margin-top: 1.25rem;
  border: 2px dashed var(--color-line);
  padding: 0.75rem 0.9rem;
  display: grid;
  gap: 0.25rem;
}

.page-faq .faq-index-note p {
  margin: 0;
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
}

.page-faq .faq-index-note strong {
  font-family: var(--font-numeric);
  font-size: 1.2rem;
  color: var(--color-primary);
}

.page-faq .faq-index-help {
  margin-top: 1rem;
  background: var(--color-wine);
  color: var(--color-white);
  padding: 1rem;
}

.page-faq .faq-index-help p {
  margin: 0 0 0.75rem;
  font-family: var(--font-headline);
  font-size: 1.25rem;
  font-weight: 700;
}

.page-faq .faq-index-help .btn {
  display: block;
  text-align: center;
  background: var(--color-energy);
  border-color: transparent;
  color: var(--color-night);
}

.page-faq .faq-index-help .btn:hover {
  background: var(--color-white);
}

/* ---------- 右侧手风琴 ---------- */
.page-faq .faq-panels {
  min-width: 0;
}

.page-faq .faq-group {
  margin-bottom: 3rem;
  scroll-margin-top: 1rem;
}

.page-faq .faq-group:target {
  outline: 3px solid var(--color-energy);
  outline-offset: 8px;
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.25rem 0.9rem;
  align-items: center;
  padding: 0.9rem 1rem;
  border: 3px solid var(--color-night);
  color: var(--color-white);
  box-shadow: 5px 5px 0 var(--color-line);
}

.page-faq .faq-group-num {
  grid-row: 1 / 3;
  align-self: center;
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: 2.4rem;
  line-height: 1;
  padding: 0.3rem 0.5rem;
  border: 2px solid rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.1);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 2rem;
  line-height: 1;
  letter-spacing: 0.02em;
}

.page-faq .faq-group-head p {
  margin: 0;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.85);
}

.page-faq #faq-download .faq-group-head {
  background: var(--color-primary);
}

.page-faq #faq-export .faq-group-head {
  background: var(--color-wine);
}

.page-faq #faq-calendar .faq-group-head {
  background: var(--color-indigo);
}

.page-faq #faq-privacy .faq-group-head {
  background: var(--color-night);
}

/* ---------- 单个问题项 ---------- */
.page-faq .faq-item {
  background: var(--color-white);
  border: 2px solid var(--color-line);
  margin: 1.25rem 0 0;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-item:hover {
  border-color: var(--color-night);
  box-shadow: 5px 5px 0 rgba(13, 27, 42, 0.08);
}

.page-faq .faq-item[open] {
  border-color: var(--color-night);
  box-shadow: 6px 6px 0 var(--color-line);
}

.page-faq #faq-download .faq-item[open] {
  border-color: var(--color-primary);
}

.page-faq #faq-export .faq-item[open] {
  border-color: var(--color-wine);
}

.page-faq #faq-calendar .faq-item[open] {
  border-color: var(--color-indigo);
}

.page-faq #faq-privacy .faq-item[open] {
  border-color: var(--color-night);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 3px solid var(--color-energy);
  outline-offset: -3px;
}

.page-faq .faq-item-ico {
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  background: var(--color-fog);
  border: 2px solid var(--color-line);
  color: var(--color-night);
}

.page-faq #faq-download .faq-item[open] .faq-item-ico {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.page-faq #faq-export .faq-item[open] .faq-item-ico {
  background: var(--color-wine);
  border-color: var(--color-wine);
  color: var(--color-white);
}

.page-faq #faq-calendar .faq-item[open] .faq-item-ico {
  background: var(--color-indigo);
  border-color: var(--color-indigo);
  color: var(--color-white);
}

.page-faq #faq-privacy .faq-item[open] .faq-item-ico {
  background: var(--color-night);
  border-color: var(--color-night);
  color: var(--color-white);
}

.page-faq .faq-item-q {
  flex: 1;
  margin: 0;
  font-family: var(--font-headline);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-night);
}

.page-faq .faq-item-toggle {
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  color: var(--color-primary);
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: 1.2rem;
}

.page-faq .faq-item-toggle::before {
  content: "+";
}

.page-faq .faq-item[open] .faq-item-toggle {
  background: var(--color-primary);
  color: var(--color-white);
}

.page-faq .faq-item[open] .faq-item-toggle::before {
  content: "–";
}

.page-faq .faq-item-a {
  padding: 0.1rem 1.25rem 1.25rem calc(46px + 0.9rem + 1.25rem);
  border-top: 1px dashed var(--color-line);
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--color-ink);
}

.page-faq .faq-item-a p {
  margin: 0.9rem 0 0;
}

.page-faq .faq-item-a a {
  color: var(--color-primary);
  font-weight: 600;
}

/* ---------- 导出流程可视化 ---------- */
.page-faq .faq-export-visual {
  margin-top: 1.5rem;
}

.page-faq .faq-flow {
  background: var(--color-night);
  border: 3px solid var(--color-night);
  padding: 1rem;
  display: grid;
  gap: 0.5rem;
}

.page-faq .faq-flow-step {
  background: var(--color-white);
  border-top: 5px solid var(--color-energy);
  padding: 0.9rem 1rem;
  position: relative;
}

.page-faq .faq-flow-step::after {
  content: "";
  position: absolute;
  right: 0.75rem;
  top: 0.75rem;
  width: 10px;
  height: 10px;
  background: var(--color-energy);
  transform: rotate(45deg);
}

.page-faq .faq-flow-num {
  display: inline-block;
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--color-primary);
  line-height: 1;
  margin-right: 0.5rem;
}

.page-faq .faq-flow-step strong {
  display: block;
  font-family: var(--font-headline);
  font-size: 1.2rem;
  color: var(--color-night);
}

.page-faq .faq-flow-step p {
  margin: 0.25rem 0 0;
  font-size: 0.82rem;
  color: var(--color-ink);
}

.page-faq .faq-flow-arrow {
  color: var(--color-energy);
  font-size: 1.5rem;
  text-align: center;
  line-height: 1;
  transform: rotate(90deg);
}

.page-faq .faq-export-figure {
  margin: 1rem 0 1.5rem;
  border: 3px solid var(--color-night);
  background: var(--color-white);
  padding: 0.5rem;
}

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

/* ---------- 桌面端增强 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-lead {
    padding: 3.25rem 2rem 3rem;
  }

  .page-faq .faq-lead-inner {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 2.5rem;
    align-items: center;
  }

  .page-faq .faq-lead h1 {
    font-size: 3.8rem;
  }

  .page-faq .faq-lead-figure::before {
    content: "";
    position: absolute;
    inset: 12px -12px -12px 12px;
    border: 3px solid var(--color-energy);
    z-index: 0;
  }

  .page-faq .faq-body {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 2.25rem;
    padding-top: 2.5rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 1.25rem;
  }

  .page-faq .faq-index-list {
    display: block;
    overflow: visible;
  }

  .page-faq .faq-index-list li + li {
    margin-top: 0.3rem;
  }

  .page-faq .faq-index-list a {
    white-space: normal;
  }

  .page-faq .faq-flow {
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    align-items: center;
    gap: 0.75rem;
  }

  .page-faq .faq-flow-arrow {
    transform: none;
  }
}