/* ===== 帮助中心 /help/ 页面专属样式 ===== */

.page-faq {
  --faq-item-line: rgba(43, 50, 61, .8);
  padding-bottom: clamp(48px, 9vw, 104px);
}

/* 面包屑 */
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: clamp(16px, 3vw, 28px);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--fx-muted);
}

.page-faq .breadcrumbs__item {
  color: inherit;
  text-decoration: none;
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 10px;
  color: var(--fx-line);
}

.page-faq .breadcrumbs__item:hover {
  color: var(--fx-orange-soft);
}

.page-faq .breadcrumbs__item[aria-current="page"] {
  color: var(--fx-text-soft);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  padding-top: clamp(18px, 3.5vw, 36px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -8% -14% auto auto;
  width: min(580px, 72%);
  height: 320px;
  background:
    radial-gradient(70% 80% at 82% 0%, rgba(255, 90, 31, .22), rgba(255, 90, 31, 0) 70%),
    linear-gradient(200deg, rgba(38, 245, 194, .09), rgba(38, 245, 194, 0) 62%);
  transform: skewY(-6deg);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero__intro {
  display: grid;
  gap: 14px;
  max-width: 76ch;
}

.page-faq .faq-hero__intro h1 {
  margin: 0;
  max-width: 24ch;
  font-family: var(--fx-serif);
  font-weight: 700;
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--fx-ink);
}

.page-faq .faq-hero__intro h1::after {
  content: "";
  display: block;
  width: 88px;
  height: 4px;
  margin-top: 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--fx-orange), var(--fx-ember));
}

.page-faq .faq-hero__intro .lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fx-text-soft);
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 分组跳转条 */
.page-faq .faq-jump {
  margin-top: clamp(24px, 4vw, 44px);
  padding-top: 16px;
  border-top: 1px solid var(--fx-line);
}

.page-faq .faq-jump__hint {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--fx-muted);
}

.page-faq .faq-jump__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-jump__list > li {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--fx-line);
  border-radius: 999px;
  background: var(--fx-glass);
  color: var(--fx-text-soft);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}

.page-faq .faq-jump__link:hover {
  border-color: var(--fx-orange-soft);
  color: var(--fx-ink);
}

.page-faq .faq-jump__link:focus-visible {
  outline: 2px solid var(--fx-mint);
  outline-offset: 2px;
}

.page-faq .faq-jump__num {
  font-family: var(--fx-mono);
  font-size: 12px;
  color: var(--fx-orange);
  font-variant-numeric: tabular-nums;
}

.page-faq:has(#group-filter:target) .faq-jump__link[href="#group-filter"],
.page-faq:has(#group-save:target) .faq-jump__link[href="#group-save"],
.page-faq:has(#group-clip:target) .faq-jump__link[href="#group-clip"],
.page-faq:has(#group-account:target) .faq-jump__link[href="#group-account"],
.page-faq:has(#group-contact:target) .faq-jump__link[href="#group-contact"] {
  border-color: var(--fx-mint);
  background: rgba(38, 245, 194, .1);
  color: var(--fx-ink);
}

/* 分组容器 */
.page-faq .faq-group {
  margin-top: clamp(28px, 5vw, 52px);
  padding: clamp(18px, 3vw, 32px);
  scroll-margin-top: 24px;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--fx-line);
}

.page-faq .faq-group__index {
  margin: 0;
  font-family: var(--fx-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--fx-mint);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--fx-serif);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.3;
  color: var(--fx-ink);
}

.page-faq .faq-group__sub {
  grid-column: 2 / -1;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fx-muted);
}

.page-faq .faq-group__sub a {
  color: var(--fx-orange-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 69, .4);
}

.page-faq .faq-group__sub a:hover {
  color: var(--fx-orange);
}

/* 问答条目 */
.page-faq .faq-list {
  margin: 0;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-item-line);
  border-left: 3px solid transparent;
  padding-left: 10px;
  transition: border-color .2s ease, background-color .2s ease;
}

.page-faq .faq-item:last-child {
  border-bottom-color: transparent;
}

.page-faq .faq-item[open] {
  border-left-color: var(--fx-mint);
  background: linear-gradient(90deg, rgba(38, 245, 194, .07), rgba(38, 245, 194, 0) 72%);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  min-height: 44px;
  padding: 15px 6px 15px 2px;
  cursor: pointer;
  list-style: none;
  color: var(--fx-ink);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
}

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

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

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--fx-mint);
  outline-offset: 3px;
}

.page-faq .faq-item__no {
  padding-top: 4px;
  font-family: var(--fx-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--fx-muted);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-item__sign {
  padding-top: 4px;
  font-family: var(--fx-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--fx-orange);
}

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

.page-faq .faq-item[open] .faq-item__sign {
  color: var(--fx-mint);
}

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

.page-faq .faq-item__body {
  padding: 0 6px 18px 34px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fx-text-soft);
}

.page-faq .faq-item__body p {
  margin: 0 0 8px;
  max-width: 68ch;
}

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

.page-faq .faq-steps {
  display: grid;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps > li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  counter-increment: faqstep;
  max-width: 68ch;
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  padding-top: 3px;
  font-family: var(--fx-mono);
  font-size: 12px;
  color: var(--fx-orange);
  font-variant-numeric: tabular-nums;
}

/* 分组内插图 */
.page-faq .faq-figure {
  margin: clamp(18px, 3vw, 26px) 0 4px;
}

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

/* 结尾引导 */
.page-faq .faq-cta {
  margin-top: clamp(32px, 5vw, 56px);
  padding: clamp(20px, 3vw, 32px);
  display: grid;
  gap: 14px;
  border-left: 3px solid var(--fx-orange);
}

.page-faq .faq-cta__title {
  margin: 0;
  font-family: var(--fx-serif);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.3;
  color: var(--fx-ink);
}

.page-faq .faq-cta p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fx-text-soft);
}

.page-faq .faq-cta__row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* 窄屏微调 */
@media (max-width: 520px) {
  .page-faq .faq-item__body {
    padding-left: 26px;
  }

  .page-faq .faq-item > summary {
    font-size: 14px;
    gap: 10px;
  }

  .page-faq .faq-group__head {
    gap: 5px 10px;
  }
}

/* 桌面端 */
@media (min-width: 900px) {
  .page-faq .faq-hero__intro h1 {
    font-size: 40px;
    max-width: 22ch;
  }

  .page-faq .faq-hero__intro .lead {
    font-size: 17px;
  }

  .page-faq .faq-group__title {
    font-size: 24px;
  }

  .page-faq .faq-cta__title {
    font-size: 24px;
  }

  .page-faq .faq-item > summary {
    padding: 18px 8px 18px 2px;
    font-size: 17px;
  }

  .page-faq .faq-item__body {
    padding: 0 8px 22px 36px;
    font-size: 16px;
  }

  .page-faq .faq-steps > li {
    grid-template-columns: 30px minmax(0, 1fr);
  }
}
</main>