.page-faq {
  background: var(--paper);
  color: var(--ink);
}

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

.page-faq .figure__media {
  overflow: hidden;
}

.page-faq .figure__media img {
  width: 100%;
  object-fit: cover;
}

.page-faq .breadcrumb {
  padding: 16px 0 6px;
}

/* 首屏检索台 */
.page-faq .faq-intro {
  position: relative;
  overflow: hidden;
  background: var(--night);
  color: var(--num-light);
  padding: clamp(26px, 5vw, 52px) 0 0;
  border-bottom: 1px solid var(--teal);
}

.page-faq .faq-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(195, 205, 210, 0.14) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(195, 205, 210, 0.14) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-faq .faq-intro .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-intro h1 {
  margin: 12px 0 16px;
  max-width: 20ch;
  font-size: clamp(28px, 5.4vw, 54px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-intro__lead {
  margin: 0 0 clamp(24px, 4vw, 40px);
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--num-light);
}

.page-faq .faq-jump {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(220, 233, 236, 0.18);
}

.page-faq .faq-jump__list {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-jump__link {
  display: block;
  padding: 14px 18px;
  border-right: 1px solid rgba(220, 233, 236, 0.16);
  font-size: 13px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--num-light);
  text-decoration: none;
  transition: background 0.12s linear;
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  background: rgba(20, 119, 107, 0.4);
  color: var(--paper);
}

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

.page-faq .faq-jump__link--on {
  background: var(--teal);
  color: var(--paper);
  font-weight: 700;
}

/* 章节 */
.page-faq .faq-block {
  padding: clamp(40px, 7vw, 78px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-block--mid {
  background: var(--mid);
}

.page-faq .faq-block--narrow {
  background: var(--mid);
}

.page-faq .faq-block--night {
  background: var(--night);
  color: var(--num-light);
  border-top-color: var(--night-2);
}

.page-faq .faq-block--teal {
  background: var(--teal);
  color: var(--paper);
  border-top-color: var(--teal-soft);
}

.page-faq .faq-block__head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-block__head h2 {
  margin: 10px 0 8px;
  font-size: clamp(22px, 3.6vw, 34px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-faq .faq-block--night h2,
.page-faq .faq-block--teal h2 {
  color: var(--paper);
}

.page-faq .faq-block__note {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(19, 28, 36, 0.74);
}

.page-faq .faq-block--night .faq-block__note {
  color: rgba(220, 233, 236, 0.82);
}

.page-faq .faq-block--teal .faq-block__note {
  color: rgba(245, 241, 232, 0.9);
}

/* 问答 */
.page-faq .faq-list {
  border-top: 1px solid var(--line);
}

.page-faq .faq-q {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-q summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
}

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

.page-faq .faq-q summary:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-faq .faq-q__icon {
  position: relative;
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  margin-top: 5px;
  color: var(--teal);
  transition: transform 0.18s linear;
}

.page-faq .faq-q__icon::before,
.page-faq .faq-q__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.page-faq .faq-q__icon::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 1px;
}

.page-faq .faq-q__icon::after {
  left: 7px;
  top: 0;
  width: 1px;
  height: 16px;
}

.page-faq .faq-q[open] .faq-q__icon {
  transform: rotate(45deg);
}

.page-faq .faq-q__a {
  max-width: 64ch;
  padding: 0 0 18px;
}

.page-faq .faq-q__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-q__a a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-q--lead {
  background: var(--mid);
  padding: 0 16px;
  border-bottom-color: transparent;
}

.page-faq .faq-block--mid .faq-q--lead {
  background: var(--paper);
}

.page-faq .faq-block--mid .faq-q--lead,
.page-faq .faq-list .faq-q--lead:first-child {
  border-top: 2px solid var(--teal);
}

.page-faq .faq-block--night .faq-list {
  border-top-color: rgba(220, 233, 236, 0.22);
}

.page-faq .faq-block--night .faq-q {
  border-bottom-color: rgba(220, 233, 236, 0.22);
}

.page-faq .faq-block--night .faq-q__icon {
  color: var(--teal-soft);
}

.page-faq .faq-block--night .faq-q__a a {
  color: var(--orange);
}

/* 三步入口 */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-bottom: 26px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-step {
  background: var(--paper);
  padding: 20px 18px 22px;
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(32px, 6vw, 48px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--orange);
}

.page-faq .faq-step h3 {
  margin: 12px 0 6px;
  font-size: 16px;
  font-weight: 800;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(19, 28, 36, 0.78);
}

.page-faq .faq-entry__figure {
  margin: 0 0 28px;
}

/* 索引分栏 */
.page-faq .faq-split {
  display: grid;
  gap: 28px;
}

.page-faq .faq-side__note {
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid var(--teal);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(19, 28, 36, 0.78);
}

.page-faq .faq-side__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-side__list li {
  display: flex;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.65;
}

.page-faq .faq-side__list .num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  color: var(--teal);
}

.page-faq .faq-split__main .figure {
  margin: 0 0 24px;
}

/* 变更等级 */
.page-faq .faq-levels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-bottom: 32px;
  background: rgba(220, 233, 236, 0.2);
  border: 1px solid rgba(220, 233, 236, 0.2);
}

.page-faq .faq-level {
  background: var(--night-2);
  padding: 20px 18px 22px;
  box-shadow: inset 0 2px 0 transparent;
}

.page-faq .faq-level--calm {
  box-shadow: inset 0 2px 0 var(--teal-soft);
}

.page-faq .faq-level--signal {
  box-shadow: inset 0 2px 0 var(--orange);
}

.page-faq .faq-level--alert {
  box-shadow: inset 0 2px 0 var(--alert);
}

.page-faq .faq-level h3 {
  margin: 12px 0 6px;
  font-size: 16px;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-level p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(220, 233, 236, 0.86);
}

/* 要点窄栏 */
.page-faq .faq-notes {
  margin-top: 30px;
  max-width: 62ch;
  padding: 4px 0 4px 18px;
  border-left: 3px solid var(--orange);
}

.page-faq .faq-notes h3 {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .faq-notes ol {
  margin: 12px 0 0;
  padding-left: 18px;
}

.page-faq .faq-notes li {
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--num-light);
}

/* 求助 */
.page-faq .faq-help {
  display: grid;
  gap: 26px;
}

.page-faq .faq-help h2 {
  margin: 10px 0 0;
  max-width: 18ch;
  font-size: clamp(22px, 3.6vw, 34px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-help__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 20px 0 16px;
  padding: 0;
  list-style: none;
  background: rgba(245, 241, 232, 0.3);
}

.page-faq .faq-help__list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 12px 14px;
  background: rgba(11, 27, 43, 0.26);
  font-size: 15px;
  color: var(--paper);
}

.page-faq .faq-help__list .num {
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-faq .faq-help__note {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 241, 232, 0.9);
}

.page-faq .faq-help__act {
  align-self: start;
  padding-top: 6px;
}

.page-faq .faq-help__meta {
  margin: 16px 0 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(245, 241, 232, 0.86);
}

.page-faq .faq-help__meta a {
  color: var(--paper);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-help__act .btn:focus-visible,
.page-faq .faq-help__meta a:focus-visible {
  outline: 2px solid var(--paper);
  outline-offset: 3px;
}

/* 断点 */
@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (min-width: 900px) {
  .page-faq .faq-entry__figure {
    width: 66%;
    margin-left: auto;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(220px, 4fr) 8fr;
    gap: 40px;
  }

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

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

  .page-faq .faq-help {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-q summary {
    font-size: 17px;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-jump__list {
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__link,
  .page-faq .faq-q__icon {
    transition: none;
  }
}