.page-faq {
  --faq-line: var(--sand);
  --faq-panel: var(--bright);
  --faq-indent: clamp(16px, 3vw, 26px);
}

.page-faq .breadcrumbs {
  padding-top: 18px;
  padding-bottom: 8px;
}

/* ---------- 首屏 ---------- */
.page-faq .page-faq__head {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: 6px;
  padding: 40px 0 54px;
  background: var(--navy);
  color: var(--paper);
}

.page-faq .page-faq__head::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -10%;
  bottom: -80px;
  width: min(560px, 72%);
  height: 240px;
  background: var(--grass-deep);
  opacity: 0.6;
  border-radius: 36px;
  transform: rotate(-9deg);
}

.page-faq .page-faq__head::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -70px;
  top: -90px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: var(--grass);
  opacity: 0.2;
}

.page-faq .page-faq__head-inner {
  position: relative;
  z-index: 1;
}

.page-faq .page-faq__head .eyebrow {
  margin: 0 0 14px;
  color: var(--grass-soft);
  letter-spacing: 0.16em;
}

.page-faq .page-faq__head h1 {
  margin: 0 0 18px;
  max-width: 20ch;
  font-size: clamp(28px, 6.2vw, 44px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: 0.01em;
  color: var(--bright);
}

.page-faq .page-faq__head .lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.8;
  color: rgba(246, 241, 230, 0.86);
}

.page-faq .page-faq__meta {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(246, 241, 230, 0.22);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--grass-soft);
}

/* ---------- 主体骨架 ---------- */
.page-faq .page-faq__body {
  display: grid;
  gap: 34px;
  padding-top: 36px;
  padding-bottom: 76px;
}

/* ---------- 分组目录 ---------- */
.page-faq .page-faq__toc-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-faq .page-faq__toc-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .page-faq__toc-list li {
  flex: 0 0 auto;
}

.page-faq .page-faq__toc-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: var(--faq-panel);
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-faq .page-faq__toc-list a .mono {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--red);
}

.page-faq .page-faq__toc-list a:hover,
.page-faq .page-faq__toc-list a:focus-visible {
  border-color: var(--grass);
  background: var(--sand);
  color: var(--grass-deep);
}

.page-faq .page-faq__toc-list a:focus-visible {
  outline: 2px solid var(--grass);
  outline-offset: 2px;
}

.page-faq .page-faq__toc-foot {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

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

.page-faq .page-faq__toc-foot a:hover {
  color: var(--red);
}

/* ---------- 问题分组 ---------- */
.page-faq .page-faq__groups {
  min-width: 0;
}

.page-faq .faq-group {
  margin: 0 0 52px;
  scroll-margin-top: 88px;
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-group__no {
  flex: 0 0 auto;
  padding: 2px 9px;
  border: 1px solid var(--red);
  border-radius: 999px;
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.08em;
  color: var(--red);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-size: clamp(20px, 3.4vw, 26px);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-faq .faq-group__intro {
  margin: 0 0 22px;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 图版 ---------- */
.page-faq .faq-figure {
  margin: 0 0 24px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--faq-panel);
  overflow: hidden;
}

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

.page-faq .faq-figure--flow img {
  aspect-ratio: 2 / 1;
}

.page-faq .faq-figure--times {
  max-width: 620px;
}

.page-faq .faq-figure--times img {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
  background: var(--faq-panel);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  counter-reset: faqitem;
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  counter-increment: faqitem;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--faq-panel);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--grass);
  background: var(--sand);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

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

.page-faq .faq-item > summary::before {
  content: counter(faqitem, decimal-leading-zero);
  flex: 0 0 auto;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-faq .faq-item > summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--grass);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
  color: var(--red);
}

.page-faq .faq-item > summary:hover {
  color: var(--grass-deep);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--grass);
  outline-offset: 2px;
  border-radius: var(--radius);
}

.page-faq .faq-item__q {
  display: block;
}

.page-faq .faq-item__a {
  padding: 0 18px 18px 44px;
  border-top: 1px solid rgba(36, 28, 20, 0.08);
  margin-top: 0;
}

.page-faq .faq-item__a p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

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

.page-faq .faq-item__a a:hover {
  color: var(--red);
}

/* ---------- 联系方式 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 22px;
  padding: 26px 22px;
  border-radius: var(--radius);
  background: var(--navy);
  color: var(--paper);
}

.page-faq .faq-contact__k {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--grass-soft);
}

.page-faq .faq-contact__v {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.6vw, 20px);
  font-weight: 700;
  letter-spacing: 0.02em;
  word-break: break-all;
  color: var(--bright);
}

.page-faq .faq-contact__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(246, 241, 230, 0.78);
}

.page-faq .faq-contact__tips {
  margin-top: 18px;
  padding: 22px;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius);
  background: var(--faq-panel);
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 10px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact__list li {
  padding-left: 16px;
  border-left: 2px solid var(--grass);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-contact__list strong {
  color: var(--grass-deep);
}

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

.page-faq .faq-contact__tips a:hover {
  color: var(--red);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-contact {
    grid-template-columns: 1fr 1fr;
    padding: 30px 28px;
  }

  .page-faq .faq-item > summary {
    padding: 18px 22px;
    font-size: 16.5px;
  }

  .page-faq .faq-item__a {
    padding: 0 22px 20px 52px;
  }
}

@media (min-width: 960px) {
  .page-faq .page-faq__head {
    padding: 56px 0 72px;
  }

  .page-faq .page-faq__body {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 56px;
    padding-top: 48px;
  }

  .page-faq .page-faq__toc {
    position: sticky;
    top: 28px;
    align-self: start;
  }

  .page-faq .page-faq__toc-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .page-faq__toc-list a {
    width: 100%;
    border-radius: var(--radius);
    justify-content: flex-start;
    padding: 10px 12px;
  }

  .page-faq .faq-group {
    margin-bottom: 64px;
  }

  .page-faq .faq-group__intro {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item > summary::after,
  .page-faq .page-faq__toc-list a {
    transition: none;
  }
}