.page-faq {
  --faq-line: 1px solid rgba(20, 24, 31, .16);
  --faq-line-strong: 1px solid rgba(20, 24, 31, .28);
  --faq-rail-w: 220px;
  background: var(--soil);
  color: var(--ink);
  font-family: var(--font-sans);
  padding-bottom: clamp(48px, 6vw, 88px);
}

.page-faq .container {
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* 面包屑 */
.page-faq .crumbs {
  padding: 20px 0 4px;
}

.page-faq .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  color: var(--grey);
}

.page-faq .crumbs__list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .crumbs__list li + li::before {
  content: "›";
  color: var(--loam);
}

.page-faq .crumbs__list a {
  color: var(--cobalt);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .crumbs__list a:hover {
  border-bottom-color: var(--cobalt);
}

.page-faq .crumbs__list [aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
}

/* 首屏框景 */
.page-faq .faq-hero {
  padding: 12px 0 clamp(32px, 5vw, 56px);
}

.page-faq .faq-hero__frame {
  background: var(--white);
  padding: clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--loam);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-size: clamp(28px, 6.2vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-weight: 900;
}

.page-faq .faq-hero__intro {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.78;
  color: var(--grey);
}

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero__acts .btn {
  font-family: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.page-faq .faq-hero__side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-faq .faq-hero__path {
  display: block;
  width: 100%;
  height: auto;
  max-width: 340px;
}

.page-faq .faq-hero__path-line {
  fill: none;
  stroke: var(--cobalt);
  stroke-width: 1.5;
}

.page-faq .faq-hero__dot {
  fill: var(--cyan);
}

.page-faq .faq-hero__dot--start {
  fill: var(--orange);
}

.page-faq .faq-hero__dot--end {
  fill: var(--cobalt);
}

.page-faq .faq-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--faq-line);
}

.page-faq .faq-stats li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: var(--faq-line);
}

.page-faq .faq-stats__n {
  font-size: 22px;
  font-weight: 700;
  color: var(--cobalt);
  letter-spacing: -0.01em;
}

.page-faq .faq-stats__t {
  font-size: 14px;
  line-height: 1.65;
  color: var(--grey);
}

/* 筛选条 */
.page-faq .faq-search {
  padding: clamp(28px, 4vw, 44px) 0 8px;
}

.page-faq .faq-search__bar {
  display: grid;
  gap: 14px;
}

.page-faq .faq-search__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .01em;
  padding-left: 10px;
  border-left: 3px solid var(--orange);
}

.page-faq .faq-search .filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-search .filter {
  font-family: inherit;
  font-size: 14px;
  line-height: 1.4;
  padding: 8px 14px;
  border: 1px solid rgba(20, 24, 31, .24);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background .16s var(--ease), color .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .faq-search .filter:hover {
  background: var(--cobalt-soft);
  border-color: var(--cobalt);
}

.page-faq .faq-search .filter[aria-pressed="true"] {
  background: var(--cobalt);
  border-color: var(--cobalt);
  color: var(--white);
}

.page-faq .faq-search .filter__count {
  font-family: var(--font-mono);
  font-size: 12px;
  opacity: .7;
  margin-left: 4px;
}

/* 主布局 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  padding-top: clamp(20px, 3vw, 36px);
}

.page-faq .faq-rail__cap {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--loam);
  padding-left: 10px;
  border-left: 3px solid var(--orange);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--faq-line);
}

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 12px 8px;
  border-bottom: var(--faq-line);
  text-decoration: none;
  color: var(--ink);
  font-size: 15px;
  transition: background .16s var(--ease), color .16s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--cobalt-soft);
  color: var(--cobalt);
}

.page-faq .faq-rail__idx {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--loam);
}

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

/* 分组 */
.page-faq .faq-group {
  padding: clamp(24px, 4vw, 40px) 0 clamp(16px, 3vw, 24px);
  border-top: var(--faq-line-strong);
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.page-faq .faq-group__idx {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 22px;
  background: var(--orange);
  color: var(--white);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(22px, 3.6vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 900;
}

.page-faq .faq-group__note {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--grey);
}

/* 问答手风琴 */
.page-faq .qa-stack {
  border-top: var(--faq-line);
}

.page-faq .qa-item {
  border-bottom: var(--faq-line);
}

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

.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 0;
  background: var(--cobalt);
  transition: height .28s var(--ease);
}

.page-faq .qa[open]::before {
  height: 100%;
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 20px;
  gap: 12px;
  align-items: start;
  padding: 16px 14px 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  transition: background .16s var(--ease);
}

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

.page-faq .qa__q:hover {
  background: var(--cobalt-soft);
}

.page-faq .qa__q::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.35;
  text-align: right;
  color: var(--loam);
}

.page-faq .qa[open] > .qa__q::after {
  content: "−";
  color: var(--cobalt);
}

.page-faq .qa__idx {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--loam);
  padding-top: 5px;
}

.page-faq .qa__body {
  padding: 0 18px 22px 18px;
}

.page-faq .qa__answer p {
  margin: 0 0 10px;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink);
}

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

.page-faq .qa-fig {
  margin: 16px 0 0;
  padding: 12px;
  background: var(--soil);
  border: var(--faq-line);
  max-width: 320px;
}

.page-faq .qa-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.page-faq .qa-fig figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--grey);
}

/* 步骤 */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .steps__item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .steps__n {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  background: var(--cobalt);
  color: var(--white);
  font-size: 13px;
}

.page-faq .steps + .btn {
  margin-top: 20px;
}

/* 转人工 */
.page-faq .faq-help {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-faq .faq-help__panel {
  padding: clamp(20px, 3vw, 28px);
}

.page-faq .faq-help__h3 {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .01em;
}

.page-faq .faq-help__btn {
  font-family: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
}

.page-faq .copy {
  display: grid;
  gap: 4px;
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  background: var(--white);
  border: var(--faq-line-strong);
  cursor: pointer;
  font-family: inherit;
}

.page-faq .copy__k {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--loam);
}

.page-faq .copy__v {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--ink);
  word-break: break-all;
}

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

.page-faq .copy.is-done .copy__s {
  color: var(--cyan);
}

.page-faq .faq-help__line {
  margin: 14px 0 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-help__hint {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--grey);
}

/* 更多入口 */
.page-faq .faq-more {
  padding: clamp(32px, 5vw, 56px) 0 0;
}

.page-faq .faq-more__title {
  margin: 0;
  font-size: clamp(20px, 3.2vw, 26px);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-faq .faq-more__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: var(--faq-line-strong);
}

.page-faq .faq-more__list a {
  display: grid;
  gap: 8px;
  padding: 20px 18px;
  height: 100%;
  text-decoration: none;
  color: var(--ink);
  border-bottom: var(--faq-line);
  transition: background .16s var(--ease);
}

.page-faq .faq-more__list a:hover {
  background: var(--cobalt-soft);
}

.page-faq .faq-more__k {
  font-size: 17px;
  font-weight: 700;
}

.page-faq .faq-more__d {
  font-size: 14px;
  line-height: 1.7;
  color: var(--grey);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-faq .qa__q {
    grid-template-columns: 34px minmax(0, 1fr) 22px;
    padding: 18px 18px 18px 22px;
    font-size: 17px;
  }

  .page-faq .qa__body {
    padding: 0 22px 24px 22px;
  }
}

@media (min-width: 720px) {
  .page-faq .qa__body--split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 24px;
    align-items: start;
  }

  .page-faq .qa__body--split .qa-fig {
    margin-top: 0;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
  }

  .page-faq .faq-more__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-more__list li {
    border-right: var(--faq-line);
  }

  .page-faq .faq-more__list li:last-child {
    border-right: 0;
  }

  .page-faq .faq-more__list a {
    border-bottom: 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: end;
  }

  .page-faq .faq-search__bar {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: start;
    gap: 32px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 24px;
  }

  .page-faq .qa__body {
    padding-right: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa::before,
  .page-faq .qa__q,
  .page-faq .faq-rail__link,
  .page-faq .faq-more__list a {
    transition: none;
  }
}