.page-faq {
  --faq-line: var(--line);
  --faq-radius: var(--radius);
  background: var(--ink);
  color: var(--white);
  display: block;
}

.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(34px, 6vw, 68px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
  margin-top: clamp(20px, 4vw, 34px);
}

.page-faq .faq-hero__title {
  font-family: var(--display);
  font-size: clamp(38px, 8.6vw, 84px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 12px 0 20px;
}

.page-faq .faq-hero__lede {
  color: var(--muted);
  max-width: 56ch;
  margin: 0;
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-hero__facts li {
  background: var(--panel);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-hero__fact-num {
  font-family: var(--mono);
  font-size: clamp(20px, 3.4vw, 26px);
  font-weight: 700;
  color: var(--green);
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.page-faq .faq-hero__fact-label {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__figure {
  margin: clamp(28px, 5vw, 54px) 0 0;
}

.page-faq .faq-hero__figure .figure__media {
  aspect-ratio: 16 / 7;
  max-height: 430px;
  overflow: hidden;
}

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

.page-faq .faq-hero__figure .figure__caption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

/* 分类入口 */
.page-faq .faq-jump {
  padding: clamp(34px, 6vw, 70px) 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-jump__lead {
  margin: 0;
  font-size: clamp(20px, 3.6vw, 26px);
}

.page-faq .faq-jump__sub {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
  max-width: 56ch;
}

.page-faq .faq-jump__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-jump__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 22px;
  background: var(--panel);
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  color: var(--white);
  text-decoration: none;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-jump__card::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 28px 28px 0;
  border-color: transparent var(--faq-line) transparent transparent;
  transition: border-color 0.2s ease;
  pointer-events: none;
}

.page-faq .faq-jump__card:hover,
.page-faq .faq-jump__card:focus-visible {
  border-color: var(--green);
  background: var(--raised);
  transform: translateY(-2px);
}

.page-faq .faq-jump__card:hover::after,
.page-faq .faq-jump__card:focus-visible::after {
  border-color: transparent var(--green) transparent transparent;
}

.page-faq .faq-jump__idx {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  transition: color 0.2s ease;
}

.page-faq .faq-jump__card:hover .faq-jump__idx {
  color: var(--green);
}

.page-faq .faq-jump__name {
  font-family: var(--display);
  font-size: clamp(19px, 3vw, 24px);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-jump__hint {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 46ch;
}

/* 问题组 */
.page-faq .faq-group {
  padding: clamp(36px, 6vw, 74px) 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group__head {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-group__titlerow {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.page-faq .faq-group__num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--green);
}

.page-faq .faq-group__head .h2 {
  margin: 0;
  font-size: clamp(24px, 4.2vw, 34px);
  line-height: 1.15;
}

.page-faq .faq-group__desc {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
  max-width: 64ch;
}

.page-faq .faq-group__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-faq .faq-list {
  min-width: 0;
}

.page-faq .faq-group__aside {
  min-width: 0;
}

.page-faq .faq-group__aside .figure {
  margin: 0;
}

.page-faq .faq-group__aside .figure__media {
  aspect-ratio: 3 / 4;
  overflow: hidden;
}

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

.page-faq .faq-group__aside .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* 折叠问题 */
.page-faq .faq-item {
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 16px;
  gap: 12px;
  align-items: start;
  padding: 20px 12px 20px 10px;
  border-left: 2px solid transparent;
  cursor: pointer;
  list-style: none;
  transition: border-color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
}

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

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  border-left-color: var(--green);
  background: var(--panel);
  transform: translateX(5px);
}

.page-faq .faq-item__id {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding-top: 4px;
  transition: color 0.2s ease;
}

.page-faq .faq-item__q:hover .faq-item__id,
.page-faq .faq-item[open] .faq-item__id {
  color: var(--green);
}

.page-faq .faq-item__text {
  font-size: clamp(16px, 2.4vw, 18px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--white);
}

.page-faq .faq-item__icon {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  flex: none;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--muted);
  transition: transform 0.24s ease, background-color 0.24s ease;
}

.page-faq .faq-item__icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__icon::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: scaleY(0);
}

.page-faq .faq-item[open] .faq-item__icon::before {
  background: var(--green);
}

.page-faq .faq-item__a {
  margin: 0 0 26px 10px;
  padding: 4px 4px 4px 20px;
  border-left: 3px solid var(--green);
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.85;
}

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

.page-faq .faq-item__a p + p {
  margin-top: 10px;
}

.page-faq .faq-item__a strong {
  color: var(--white);
  font-weight: 700;
}

.page-faq .faq-item__a .u-link {
  color: var(--blue);
}

@keyframes faqDrop {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faqDrop 0.26s ease-out;
}

/* 收束面板 */
.page-faq .faq-closing {
  padding: clamp(40px, 7vw, 84px) 0 clamp(56px, 8vw, 96px);
}

.page-faq .faq-closing__panel {
  position: relative;
  padding: clamp(26px, 5vw, 50px);
  background: linear-gradient(140deg, var(--raised) 0%, var(--panel) 68%);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--green);
  overflow: hidden;
}

.page-faq .faq-closing__panel::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 46px 46px 0;
  border-color: transparent var(--green) transparent transparent;
  pointer-events: none;
}

.page-faq .faq-closing__title {
  margin: 10px 0 14px;
  font-size: clamp(26px, 4.6vw, 38px);
  line-height: 1.15;
}

.page-faq .faq-closing__text {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.8;
  max-width: 60ch;
}

.page-faq .faq-closing__mail {
  display: inline-block;
  margin: 0 0 24px;
  padding: 8px 14px;
  border: 1px solid var(--faq-line);
  background: var(--ink);
  color: var(--green);
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  word-break: break-all;
}

.page-faq .faq-closing__btn {
  display: inline-block;
}

@media (min-width: 760px) {
  .page-faq .faq-jump__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-faq .faq-jump__card--w4 {
    grid-column: span 4;
  }

  .page-faq .faq-jump__card--w2 {
    grid-column: span 2;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: clamp(30px, 5vw, 60px);
  }

  .page-faq .faq-closing__panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    column-gap: 40px;
  }

  .page-faq .faq-closing__panel .eyebrow,
  .page-faq .faq-closing__title,
  .page-faq .faq-closing__text {
    grid-column: 1 / -1;
  }

  .page-faq .faq-closing__mail {
    grid-column: 1;
    justify-self: start;
    margin-bottom: 0;
  }

  .page-faq .faq-closing__btn {
    grid-column: 2;
    justify-self: end;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-group--split .faq-group__body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: clamp(34px, 5vw, 56px);
  }
}

@media (max-width: 560px) {
  .page-faq .faq-item__q {
    grid-template-columns: 34px minmax(0, 1fr) 14px;
    gap: 10px;
    padding: 18px 8px 18px 8px;
  }

  .page-faq .faq-item__id {
    font-size: 12px;
  }

  .page-faq .faq-item__a {
    margin-left: 0;
    padding-left: 16px;
  }

  .page-faq .faq-hero__figure .figure__media {
    aspect-ratio: 4 / 3;
    max-height: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__q,
  .page-faq .faq-jump__card,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }

  .page-faq .faq-item__q:hover,
  .page-faq .faq-item__q:focus-visible,
  .page-faq .faq-jump__card:hover,
  .page-faq .faq-jump__card:focus-visible {
    transform: none;
  }

  .page-faq .faq-item[open] .faq-item__a {
    animation: none;
  }
}