.page-faq {
  --faq-body: #33475E;
  --faq-anchor: calc(var(--header-h) + 20px);
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-faq .shell {
  padding-left: var(--gutter);
  padding-right: var(--gutter);
  max-width: var(--shell);
  margin-left: auto;
  margin-right: auto;
  box-sizing: border-box;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  padding-top: 22px;
  font-family: var(--font-sans);
  font-size: 13px;
}
.page-faq .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq .crumbs a {
  color: var(--gray);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.page-faq .crumbs a:hover {
  color: var(--blue);
}
.page-faq .crumbs li + li::before {
  content: "/";
  margin: 0 8px;
  color: var(--line);
}
.page-faq .crumbs [aria-current="page"] {
  color: var(--navy);
  font-weight: 600;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  background: linear-gradient(180deg, var(--mist) 0%, var(--white) 82%);
  padding: clamp(24px, 4vw, 44px) 0 clamp(28px, 4.4vw, 52px);
}
.page-faq .faq-hero__frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-soft);
  padding: clamp(24px, 4.6vw, 54px);
}
.page-faq .faq-hero__frame::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid var(--mist);
  border-radius: var(--radius);
  pointer-events: none;
}
.page-faq .faq-hero__frame::after {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 42px;
  height: 42px;
  border-top: 2px solid var(--orange);
  border-left: 2px solid var(--orange);
  pointer-events: none;
}
.page-faq .faq-hero__top {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
}
.page-faq .faq-hero__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--gray);
}
.page-faq .faq-hero h1 {
  position: relative;
  margin: 18px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(30px, 5.2vw, 48px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 24ch;
}
.page-faq .faq-hero .lede {
  position: relative;
  margin: 20px 0 0;
  font-family: var(--font-body);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--faq-body);
  max-width: 66ch;
}

/* 价格同步提示条 */
.page-faq .faq-pulse {
  position: relative;
  display: grid;
  grid-template-columns: 10px 1fr;
  gap: 16px;
  align-items: start;
  margin-top: 32px;
  padding: 20px 22px;
  background: var(--ink);
  border-radius: var(--radius);
}
.page-faq .faq-pulse__mark {
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 106, 43, 0.2);
}
.page-faq .faq-pulse p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #D8DEE9;
}
.page-faq .faq-pulse a {
  color: var(--white);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: color 0.2s var(--ease);
}
.page-faq .faq-pulse a:hover {
  color: var(--orange);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: clamp(36px, 5.6vw, 76px) 0 clamp(44px, 6vw, 84px);
  background: var(--white);
}
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

/* 侧栏分类索引 */
.page-faq .faq-index {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
}
.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
}
.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
}
.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 10px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--mist);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}
.page-faq .faq-index__link:hover {
  color: var(--blue);
  padding-left: 10px;
}
.page-faq .faq-index__link[aria-current="true"] {
  color: var(--orange);
}
.page-faq .faq-index__num,
.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray);
}
.page-faq .faq-index__label {
  min-width: 0;
  overflow-wrap: break-word;
}
.page-faq .faq-index__hint {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

/* 面板与工具栏 */
.page-faq .faq-panel {
  min-width: 0;
}
.page-faq .faq-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(28px, 4vw, 44px);
}
.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .filter-btn {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy);
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.page-faq .filter-btn:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.page-faq .filter-btn[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}
.page-faq .filter-btn[aria-pressed="true"]:hover {
  color: var(--white);
}
.page-faq .filter-bar__count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray);
  white-space: nowrap;
}
.page-faq .filter-bar__count [data-filter-count] {
  color: var(--orange);
  font-weight: 700;
}

/* 分组 */
.page-faq .qa-group {
  scroll-margin-top: var(--faq-anchor);
  margin-bottom: clamp(36px, 5vw, 56px);
}
.page-faq .qa-group:last-child {
  margin-bottom: 0;
}
.page-faq .qa-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 6px 14px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink);
}
.page-faq .qa-group__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}
.page-faq .qa-group__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-faq .qa-group__desc {
  grid-column: 1 / -1;
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
  max-width: 62ch;
}

/* 章节配图 */
.page-faq .qa-figure {
  margin: 22px 0 6px;
  max-width: 560px;
  border-radius: var(--radius);
  overflow: hidden;
}
.page-faq .qa-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  background: var(--silver);
}
.page-faq .qa-figure .media__cap {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

/* 折叠问答 */
.page-faq .qa-group__list {
  margin-top: 4px;
}
.page-faq .qa-item {
  border-bottom: 1px solid var(--line);
}
.page-faq .qa-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 4px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.005em;
  color: var(--ink);
  transition: color 0.2s var(--ease);
}
.page-faq .qa-item__q::-webkit-details-marker {
  display: none;
}
.page-faq .qa-item__q:hover {
  color: var(--blue);
}
.page-faq .qa-item__q:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}
.page-faq .qa-item__qtext {
  min-width: 0;
}
.page-faq .qa-item__icon {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 0.2s var(--ease);
}
.page-faq .qa-item__icon::before,
.page-faq .qa-item__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--blue);
  transform: translate(-50%, -50%);
  transition: opacity 0.2s var(--ease), background 0.2s var(--ease);
}
.page-faq .qa-item__icon::before {
  width: 8px;
  height: 1.5px;
}
.page-faq .qa-item__icon::after {
  width: 1.5px;
  height: 8px;
}
.page-faq .qa-item[open] .qa-item__icon {
  border-color: var(--orange);
}
.page-faq .qa-item[open] .qa-item__icon::before,
.page-faq .qa-item[open] .qa-item__icon::after {
  background: var(--orange);
}
.page-faq .qa-item[open] .qa-item__icon::after {
  opacity: 0;
}
.page-faq .qa-item__a {
  padding: 0 38px 22px 4px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-body);
}
.page-faq .qa-item__a p {
  margin: 0;
}
.page-faq .qa-item__a a {
  color: var(--blue);
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s var(--ease);
}
.page-faq .qa-item__a a:hover {
  text-decoration-color: var(--blue);
}
@keyframes faq-panel-open {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.page-faq .qa-item[open] .qa-item__a {
  animation: faq-panel-open 0.28s var(--ease) both;
}

/* ---------- 底部联系 ---------- */
.page-faq .faq-cta {
  background: var(--ink);
  padding: clamp(44px, 7vw, 82px) 0;
  color: var(--white);
}
.page-faq .faq-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}
.page-faq .faq-cta .eyebrow--on-dark {
  color: var(--teal);
}
.page-faq .faq-cta h2 {
  margin: 14px 0 0;
  font-family: var(--font-sans);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--white);
}
.page-faq .faq-cta__text > p {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: #C6D0DE;
  max-width: 58ch;
}
.page-faq .faq-cta__mail {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: #8FA0B6;
  word-break: break-all;
}
.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 平板 ---------- */
@media (min-width: 760px) {
  .page-faq .qa-group__list {
    margin-top: 6px;
  }
  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: end;
    gap: 48px;
  }
  .page-faq .qa-figure {
    max-width: 520px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }
  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }
  .page-faq .qa-item__q {
    font-size: 18px;
    padding: 22px 4px;
  }
  .page-faq .qa-item__a {
    padding-right: 64px;
    padding-bottom: 24px;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 560px) {
  .page-faq .faq-hero__frame {
    padding: 22px 18px 24px;
  }
  .page-faq .faq-hero__frame::before {
    inset: 5px;
  }
  .page-faq .faq-pulse {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    padding: 16px 16px 18px;
  }
  .page-faq .faq-pulse__mark {
    margin-top: 0;
  }
  .page-faq .qa-item__q {
    font-size: 16px;
    gap: 14px;
    padding: 18px 2px;
  }
  .page-faq .qa-item__a {
    padding: 0 8px 20px 2px;
    font-size: 15px;
  }
  .page-faq .qa-figure {
    max-width: 100%;
  }
  .page-faq .filter-btn {
    padding: 8px 12px;
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-item[open] .qa-item__a {
    animation: none;
  }
  .page-faq .faq-index__link,
  .page-faq .qa-item__q,
  .page-faq .filter-btn {
    transition: none;
  }
}