.page-faq {
  --faq-panel: rgba(255, 255, 255, .72);
  --faq-line: rgba(10, 90, 99, .2);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--turf);
  color: var(--on-dark);
  padding-block: clamp(22px, 4.5vw, 40px) clamp(40px, 7vw, 84px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  top: -30%;
  height: 160%;
  background-image: repeating-linear-gradient(-12deg, rgba(20, 216, 198, .09) 0 1px, transparent 1px 28px);
  pointer-events: none;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb,
.page-faq .faq-hero .breadcrumb-list,
.page-faq .faq-hero .breadcrumb-item,
.page-faq .faq-hero .breadcrumb-item a {
  color: var(--on-dark-soft);
}

.page-faq .faq-hero .breadcrumb-item a:hover {
  color: var(--cyan);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
  margin-top: clamp(18px, 3vw, 34px);
}

.page-faq .faq-hero__copy h1 {
  margin: 12px 0 16px;
  color: var(--on-dark);
  font-size: clamp(30px, 6vw, 56px);
  line-height: 1.06;
  letter-spacing: -.02em;
  font-weight: 900;
}

.page-faq .faq-hero .eyebrow {
  color: var(--cyan);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 36em;
  color: var(--on-dark-soft);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.7;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

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

.page-faq .faq-hero__figure {
  position: relative;
}

.page-faq .faq-hero__figure::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 26px;
  width: 118px;
  height: 6px;
  background: var(--orange);
  transform: rotate(-12deg);
}

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

/* ---------- 分类锚点 ---------- */
.page-faq .faq-jump {
  background: var(--cream);
  border-bottom: 1px solid var(--faq-line);
  padding-block: 14px;
}

.page-faq .faq-jump__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-jump__list::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-jump__list::-webkit-scrollbar-thumb {
  background: var(--line-strong);
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  text-decoration: none;
  transition: background .24s var(--ease), color .24s var(--ease), border-color .24s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
  color: #FFFFFF;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  background: var(--cream);
  color: var(--ink);
  padding-block: clamp(34px, 6vw, 78px);
}

.page-faq .faq-section {
  scroll-margin-top: 104px;
  max-width: 94ch;
}

.page-faq .faq-section + .faq-section {
  margin-top: clamp(34px, 5vw, 64px);
  padding-top: clamp(30px, 4.6vw, 56px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-section__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 6px;
  align-items: start;
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-section__no {
  grid-row: 1 / span 2;
  align-self: start;
  padding: 5px 10px;
  background: var(--wine);
  color: var(--on-dark);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
}

.page-faq .faq-section__title {
  margin: 0;
  font-size: clamp(21px, 2.8vw, 30px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-section__note {
  grid-column: 2;
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.page-faq .faq-section__body {
  margin-top: 4px;
}

.page-faq .faq-figure {
  margin: 22px 0 0;
}

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

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
}

.page-faq .qa {
  border-left: 3px solid var(--line-strong);
  background: var(--faq-panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: border-color .24s var(--ease), background .24s var(--ease);
}

.page-faq .qa:hover {
  border-left-color: var(--cyan-deep);
}

.page-faq .qa[open] {
  border-left-color: var(--orange);
  background: #FFFFFF;
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan-deep);
}

.page-faq .qa[open] .qa__q::after {
  content: "–";
  color: var(--orange);
}

.page-faq .qa__no {
  flex: none;
  padding: 2px 7px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--cyan-deep);
}

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

.page-faq .qa__a {
  padding: 0 20px 20px;
  border-top: 1px solid var(--faq-line);
  padding-top: 14px;
}

.page-faq .qa__a p {
  margin: 0 0 10px;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-faq .qa__a p:last-of-type {
  margin-bottom: 12px;
}

.page-faq .qa__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .qa__link::after {
  content: "→";
  transition: transform .2s var(--ease);
}

.page-faq .qa__link:hover,
.page-faq .qa__link:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-faq .qa__link:hover::after,
.page-faq .qa__link:focus-visible::after {
  transform: translateX(3px);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  background: var(--night);
  color: var(--on-dark);
  padding-block: clamp(38px, 6.5vw, 80px);
}

.page-faq .faq-outro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-faq .faq-outro__copy h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.2;
  color: var(--on-dark);
}

.page-faq .faq-outro__copy p {
  margin: 0;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--on-dark-soft);
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-outro__grid {
    grid-template-columns: minmax(0, 1.4fr) auto;
    align-items: end;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-jump__list {
    padding-bottom: 4px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(30px, 4.5vw, 60px);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-section__body--split {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .55fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-faq .faq-figure {
    margin: 0;
    position: sticky;
    top: 112px;
  }
}

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