.page-faq {
  --faq-panel: var(--bs-deep-2);
  --faq-text-soft: rgba(237, 231, 218, .76);
  --faq-text-mute: var(--bs-rock);
  background: var(--bs-deep);
  color: var(--bs-cream);
  display: block;
  overflow-x: clip;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
  min-width: 0;
}

/* ---------- 面包屑 ---------- */

.page-faq .faq-crumb {
  padding: 18px 0 4px;
  font-size: 13px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4vw, 48px) 0 clamp(30px, 5vw, 60px);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--bs-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--bs-grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 14px 0 18px;
  font-family: var(--bs-head);
  font-weight: 800;
  font-size: clamp(1.9rem, 5.4vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--bs-cream);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 46ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--faq-text-soft);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

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

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

/* ---------- 数字条 ---------- */

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(28px, 5vw, 52px);
  background: var(--bs-hair-soft);
  border-top: 1px solid var(--bs-hair);
  border-bottom: 1px solid var(--bs-hair);
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background: var(--bs-deep);
}

.page-faq .faq-stat .bs-num--key {
  font-family: var(--bs-mono);
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1;
  color: var(--bs-cyan);
  border-bottom: 2px solid var(--bs-cyan);
  align-self: flex-start;
  padding-bottom: 4px;
}

.page-faq .faq-stat > span:last-child {
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--faq-text-mute);
}

/* ---------- 分类标签条 ---------- */

.page-faq .faq-tags {
  background: var(--bs-deep-2);
  border-top: 1px solid var(--bs-hair);
  border-bottom: 1px solid var(--bs-hair);
}

.page-faq .faq-tags__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  padding: 14px 0;
}

.page-faq .faq-tags__label {
  color: var(--faq-text-mute);
  white-space: nowrap;
}

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

.page-faq .faq-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--bs-hair);
  border-radius: 999px;
  color: var(--bs-cream);
  font-size: 14px;
  text-decoration: none;
  transition: border-color var(--bs-fast) var(--bs-ease), color var(--bs-fast) var(--bs-ease), background-color var(--bs-fast) var(--bs-ease);
}

.page-faq .faq-tag:hover,
.page-faq .faq-tag:focus-visible {
  border-color: var(--bs-cyan);
  color: var(--bs-cyan);
  background: rgba(53, 224, 200, .07);
}

.page-faq .faq-tag__num {
  font-family: var(--bs-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--faq-text-mute);
}

.page-faq .faq-tag__count {
  padding-left: 9px;
  border-left: 1px solid var(--bs-hair);
  font-family: var(--bs-mono);
  font-size: 11px;
  color: var(--bs-cyan);
}

/* ---------- 问题分组 ---------- */

.page-faq .faq-group {
  padding-top: clamp(44px, 7vw, 84px);
  padding-bottom: clamp(44px, 7vw, 84px);
}

.page-faq .faq-group + .faq-group {
  border-top: 1px solid var(--bs-hair-soft);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-faq .faq-group__idx {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-top: 8px;
  font-family: var(--bs-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--bs-cyan);
}

.page-faq .faq-group__idx::after {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--bs-cyan);
  opacity: .55;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--bs-head);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--bs-cream);
}

.page-faq .faq-group__intro {
  margin: 10px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-text-mute);
}

/* ---------- 问答列表 ---------- */

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--bs-hair);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--bs-hair);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: baseline;
  padding: 20px 0;
  list-style: none;
  cursor: pointer;
  transition: color var(--bs-fast) var(--bs-ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover .faq-item__t,
.page-faq .faq-item__q:focus-visible .faq-item__t {
  color: var(--bs-cyan);
}

.page-faq .faq-item__q:focus-visible {
  outline: 1px solid var(--bs-cyan);
  outline-offset: 2px;
}

.page-faq .faq-item__idx {
  padding-bottom: 3px;
  border-bottom: 1px solid var(--bs-cyan);
  font-family: var(--bs-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--bs-cyan);
}

.page-faq .faq-item__t {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--bs-cream);
  transition: color var(--bs-fast) var(--bs-ease);
}

.page-faq .faq-item__mark {
  position: relative;
  align-self: center;
  flex: none;
  width: 15px;
  height: 15px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 15px;
  height: 1px;
  background: var(--bs-cyan);
  transition: transform var(--bs-mid) var(--bs-ease), opacity var(--bs-mid) var(--bs-ease);
}

.page-faq .faq-item__mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: rotate(0deg);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 0 24px;
  animation: faq-rise var(--bs-mid) var(--bs-ease) both;
}

@keyframes faq-rise {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-item__a > p {
  margin: 0;
  max-width: 70ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--faq-text-soft);
}

.page-faq .faq-item__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

/* ---------- 工具使用配图 ---------- */

.page-faq .faq-tools__figure {
  margin: clamp(28px, 4vw, 46px) 0 0;
}

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

/* ---------- 联系区 ---------- */

.page-faq .faq-contact__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(22px, 4vw, 40px);
  background: var(--faq-panel);
  border: 1px solid var(--bs-hair);
  border-radius: var(--bs-radius);
}

.page-faq .faq-contact__sub {
  margin: 0;
  font-family: var(--bs-head);
  font-weight: 700;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--bs-cream);
}

.page-faq .faq-contact__steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-contact__steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  counter-increment: faqstep;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-text-soft);
}

.page-faq .faq-contact__steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  padding-top: 4px;
  font-family: var(--bs-mono);
  font-size: 12px;
  color: var(--bs-cyan);
}

.page-faq .faq-contact__lines {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--bs-hair);
}

.page-faq .faq-contact__lines .bs-contactline {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  margin: 0;
  padding: 14px 0;
  border-bottom: 1px solid var(--bs-hair);
}

.page-faq .faq-contact__lines .bs-contactline__k {
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--faq-text-mute);
}

.page-faq .faq-contact__lines .bs-contactline__v {
  font-family: var(--bs-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--bs-cream);
  word-break: break-word;
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-stat {
    padding: 22px 20px;
  }

  .page-faq .faq-item__t {
    font-size: 18px;
  }

  .page-faq .faq-item__a {
    padding-bottom: 28px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(30px, 4vw, 56px);
  }

  .page-faq .faq-hero__figure {
    transform: translateY(10px);
  }

  .page-faq .faq-group__head {
    gap: 22px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-item__a {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    column-gap: clamp(24px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-item__a > p,
  .page-faq .faq-item__a > .faq-item__links {
    grid-column: 2;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-contact__panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (max-width: 620px) {
  .page-faq .faq-item__q {
    gap: 12px;
    padding: 18px 0;
  }

  .page-faq .faq-item__q {
    grid-template-columns: auto minmax(0, 1fr) 15px;
  }

  .page-faq .faq-item__t {
    font-size: 15.5px;
  }

  .page-faq .faq-contact__lines .bs-contactline {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-faq .faq-tags__inner {
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-hero__figure {
    transform: none;
  }

  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-tag {
    transition: none;
  }
}