.page-faq {
  display: block;
  padding-bottom: 56px;
}

.page-faq .crumbs {
  padding-top: 26px;
}

/* ---------- 页头 ---------- */
.page-faq .faq-masthead {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
  padding: 30px 0 44px;
  border-bottom: 2px solid var(--edge);
}

.page-faq .faq-masthead__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--green);
}

.page-faq .faq-masthead__dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(61, 220, 151, 0.16);
}

.page-faq .faq-masthead__title {
  margin: 0 0 18px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.6vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-masthead__lede {
  margin: 0 0 24px;
  max-width: 58ch;
}

.page-faq .faq-masthead__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  color: var(--mist);
}

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

.page-faq .faq-masthead__facts b {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 17px;
  color: var(--amber);
}

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

.page-faq .faq-masthead__figure img,
.page-faq .faq-quick__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 快捷答案 ---------- */
.page-faq .faq-quick {
  padding: 46px 0 4px;
}

.page-faq .faq-quick__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 20px;
  margin-bottom: 24px;
}

.page-faq .faq-quick__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.8vw, 28px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-quick__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-quick__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-faq .faq-answer {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px 22px;
  background: var(--ink-3);
  border: 2px solid var(--edge);
  border-left: 4px solid var(--green);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-answer:nth-child(2) {
  border-left-color: var(--amber);
}

.page-faq .faq-answer:nth-child(3) {
  border-left-color: var(--violet);
}

.page-faq .faq-answer:nth-child(4) {
  border-left-color: var(--coral);
}

.page-faq .faq-answer__label {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-answer__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 34px);
  line-height: 1.05;
  color: var(--amber);
}

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

.page-faq .faq-quick__figure {
  margin: 34px 0 0;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-top: 54px;
}

.page-faq .faq-group {
  border-top: 2px solid var(--edge);
  padding-top: 24px;
  margin-bottom: 44px;
  scroll-margin-top: 112px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 8px;
}

.page-faq .faq-group__index {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--amber);
  transform: translateY(-5px);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-group__note {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-group__list {
  display: grid;
  gap: 10px;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  background: var(--ink-2);
  border: 2px solid var(--edge);
  scroll-margin-top: 112px;
  transition: border-color 160ms ease, transform 160ms ease;
}

.page-faq .faq-item:hover {
  border-color: var(--coral);
  transform: translateX(2px);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__summary::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
  transform: rotate(-45deg);
  transition: transform 160ms ease, border-color 160ms ease;
}

.page-faq .faq-item[open] .faq-item__summary {
  color: var(--amber);
}

.page-faq .faq-item[open] .faq-item__summary::before {
  border-color: var(--amber);
  transform: rotate(45deg);
}

.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: -2px;
}

.page-faq .faq-item__body {
  padding: 0 16px 16px 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 66ch;
}

/* ---------- 右侧定位栏 ---------- */
.page-faq .faq-rail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-rail__card {
  padding: 18px 16px 20px;
  background: var(--ink-2);
  border: 2px solid var(--edge);
}

.page-faq .faq-rail__card--contact {
  border-color: var(--green);
  background: var(--ink-3);
}

.page-faq .faq-rail__card--quiet {
  background: transparent;
  border-style: dashed;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-faq .faq-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--paper);
  border-left-color: var(--coral);
  background: rgba(255, 107, 74, 0.08);
}

.page-faq .faq-rail__num {
  flex: none;
  font-size: 12px;
  color: var(--amber);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-quick__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-item__summary {
    padding: 16px 18px;
  }

  .page-faq .faq-item__body {
    padding: 0 18px 18px 42px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-masthead {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
    padding: 40px 0 52px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 2fr) minmax(272px, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }
}

@media (min-width: 1160px) {
  .page-faq .faq-quick__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}