.page-faq {
  --faq-rule: 1px solid var(--mossgray);
  --faq-pad: clamp(16px, 3vw, 28px);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  padding: clamp(22px, 5vw, 44px) 0 clamp(28px, 5vw, 52px);
}

.page-faq .faq-hero__head {
  position: relative;
  max-width: 940px;
  margin-top: clamp(16px, 3vw, 26px);
}

.page-faq .faq-hero__head::before {
  content: "";
  display: block;
  width: 96px;
  height: 8px;
  margin-bottom: 18px;
  background-image: repeating-linear-gradient(90deg, var(--sand) 0 1px, transparent 1px 8px);
  opacity: .75;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 20px;
  max-width: 17ch;
  overflow-wrap: anywhere;
}

.page-faq .faq-hero .lede {
  max-width: 64ch;
  margin: 0;
}

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

.page-faq .faq-hero__annot {
  display: none;
}

/* 搜索与分类 */
.page-faq .faq-finder {
  margin-top: clamp(24px, 4vw, 40px);
  border: var(--faq-rule);
  border-radius: var(--r-xl);
  background: var(--board);
  overflow: hidden;
}

.page-faq .faq-finder__art {
  display: block;
  width: 100%;
  height: clamp(120px, 24vw, 220px);
  object-fit: cover;
  opacity: .7;
}

.page-faq .faq-finder__body {
  padding: var(--faq-pad);
}

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

.page-faq .faq-search__field {
  position: relative;
  display: block;
  border: 1px solid var(--mossgray);
  border-radius: var(--r-pill);
  background: var(--pine);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.page-faq .faq-search__field:focus-within {
  border-color: var(--orange);
  box-shadow: 0 0 0 2px rgba(255, 106, 43, .38);
}

.page-faq .faq-search__icon {
  position: absolute;
  left: 20px;
  top: 50%;
  width: 13px;
  height: 13px;
  margin-top: -8px;
  border: 2px solid var(--orange);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-search__icon::after {
  content: "";
  position: absolute;
  right: -7px;
  bottom: -4px;
  width: 8px;
  height: 2px;
  background: var(--orange);
  transform: rotate(45deg);
}

.page-faq .faq-search__input {
  width: 100%;
  box-sizing: border-box;
  padding: 15px 22px 15px 50px;
  border: 0;
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--mist);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-appearance: none;
  appearance: none;
}

.page-faq .faq-search__input::placeholder {
  color: var(--lime);
}

.page-faq .faq-search__input:focus {
  outline: none;
}

.page-faq .faq-search__input::-webkit-search-cancel-button {
  -webkit-appearance: none;
}

.page-faq .faq-search__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-faq .faq-search__hint {
  margin: 12px 4px 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--lime);
}

.page-faq .faq-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-cat {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px 9px 16px;
  border: 1px solid var(--mossgray);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--mist);
  font-size: 14px;
  line-height: 1;
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 106, 43, .1);
  color: var(--orange);
}

.page-faq .faq-cat__count {
  display: inline-grid;
  place-items: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  box-sizing: border-box;
  border-radius: var(--r-pill);
  background: var(--mud);
  color: var(--orange);
  font-size: 12px;
  line-height: 1;
}

/* ============ 主体两栏 ============ */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 32px);
}

/* 目录 */
.page-faq .faq-toc {
  border-top: var(--faq-rule);
  padding-top: 16px;
}

.page-faq .faq-toc__label {
  margin: 0;
  color: var(--lime);
}

.page-faq .faq-toc__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  box-sizing: border-box;
  border-left: 2px solid transparent;
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(43, 224, 200, .1);
  color: var(--cyan);
}

.page-faq .faq-toc__idx {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-faq .faq-toc__name {
  flex: 1 1 auto;
  white-space: nowrap;
}

.page-faq .faq-toc__count {
  font-size: 12px;
  color: var(--lime);
}

/* 分组 */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(38px, 6vw, 68px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: var(--faq-rule);
  margin-bottom: 4px;
}

.page-faq .faq-group__head h2 {
  flex: 1 1 auto;
  margin: 0;
  min-width: 0;
}

.page-faq .faq-group__num {
  flex: 0 0 auto;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-faq .faq-group__count {
  flex: 0 0 auto;
  padding: 4px 11px;
  border: 1px solid var(--mossgray);
  border-radius: var(--r-pill);
  font-size: 12px;
  line-height: 1;
  color: var(--lime);
}

/* 折叠条目 */
.page-faq .faq-item {
  border-bottom: var(--faq-rule);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  list-style: none;
  cursor: pointer;
  color: var(--mist);
  font-size: clamp(16px, 2.2vw, 17px);
  font-weight: 600;
  line-height: 1.65;
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary::before {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 9px;
  border: 2px solid var(--orange);
  border-radius: 2px;
  transform: rotate(45deg);
  transition: background-color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--orange);
}

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

.page-faq .faq-item[open] summary::before {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-item__body {
  padding: 0 0 20px 25px;
  max-width: 68ch;
  color: var(--lime);
  font-size: 15.5px;
  line-height: 1.78;
}

.page-faq .faq-item__body p {
  margin: 0;
}

.page-faq .faq-item__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 224, 200, .45);
  transition: border-color var(--t-fast) var(--ease);
}

.page-faq .faq-item__body a:hover,
.page-faq .faq-item__body a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* 配图 */
.page-faq .faq-figure {
  margin: 26px 0 0;
  border: var(--faq-rule);
  border-radius: var(--r-lg);
  background: var(--board);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
}

.page-faq .faq-figure__cap {
  padding: 12px 18px;
  border-top: var(--faq-rule);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--sand);
}

/* ============ 联系通道 ============ */
.page-faq .faq-contact {
  margin-top: clamp(40px, 7vw, 84px);
}

.page-faq .faq-contact__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  padding: var(--faq-pad);
  border-radius: var(--r-xl);
}

.page-faq .faq-contact__intro h2 {
  margin: 10px 0 14px;
}

.page-faq .faq-contact__intro .lede {
  margin: 0;
  max-width: 58ch;
}

.page-faq .faq-contact__cta {
  margin: 22px 0 0;
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
  list-style: none;
  align-self: start;
}

.page-faq .faq-contact__list li {
  padding: 14px 0;
  border-bottom: var(--faq-rule);
}

.page-faq .faq-contact__list li:first-child {
  border-top: var(--faq-rule);
}

.page-faq .faq-contact__key {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--sand);
}

.page-faq .faq-contact__val {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__note {
  border-bottom: 0 !important;
  font-size: 13px;
  line-height: 1.7;
  color: var(--lime);
}

/* ============ 响应式 ============ */
@media (min-width: 760px) {
  .page-faq .faq-contact__panel {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__annot {
    display: block;
    position: absolute;
    right: 4px;
    top: 6px;
    margin: 0;
    writing-mode: vertical-rl;
    font-size: 12px;
    letter-spacing: .28em;
    color: var(--sand);
  }

  .page-faq .faq-hero__title {
    padding-right: 44px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(200px, 244px) minmax(0, 1fr);
    gap: clamp(30px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    padding-top: 18px;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-faq .faq-toc__link {
    padding: 8px 12px;
  }

  .page-faq .faq-item__body {
    padding-left: 27px;
  }

  .page-faq .faq-figure img {
    max-height: 460px;
  }
}