.page-faq {
  --faq-gap: clamp(20px, 3vw, 36px);
  --faq-pad: clamp(14px, 2vw, 20px);
  padding-top: clamp(24px, 4vw, 48px);
  overflow-x: hidden;
}

.page-faq .faq-top {
  padding-bottom: clamp(32px, 5vw, 56px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-hero__eyebrow {
  margin: clamp(14px, 2vw, 22px) 0 10px;
  color: var(--lime-2);
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-size: clamp(30px, 5.4vw, 50px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  max-width: 40ch;
  color: var(--ink-2);
}

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

.page-faq .faq-hero__figure .figure__frame {
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-hero__figure .figure__frame::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 40%;
  background: var(--lime);
}

.page-faq .faq-hero__figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

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

.page-faq .figure__caption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

/* ---------- 速查数据条 ---------- */
.page-faq .faq-strip {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-strip__cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-strip__cell:nth-child(2n) {
  border-right: none;
}

.page-faq .faq-strip__key {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.page-faq .faq-strip__val {
  font-size: 18px;
  line-height: 1.2;
  color: var(--lime);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  padding-bottom: clamp(48px, 7vw, 96px);
}

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

.page-faq .faq-rail__label {
  margin: 0 0 10px;
  color: var(--ink-3);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 10px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

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

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

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  color: var(--ink-2);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-index__num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime-2);
}

.page-faq .faq-index__name {
  font-size: 14px;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--ink);
  border-color: var(--lime);
  background: var(--deep);
  outline: none;
}

.page-faq .faq-rail__cta {
  margin-top: 18px;
  padding: 14px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-rail__note {
  margin: 0 0 12px;
}

.page-faq .faq-main {
  display: grid;
  gap: clamp(36px, 5vw, 60px);
  min-width: 0;
}

/* ---------- 章节与问答 ---------- */
.page-faq .faq-section {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq .faq-head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 4px 12px;
  padding-bottom: 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-head__idx {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-faq .faq-head__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 26px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-head__note {
  grid-column: 2;
  font-size: 13px;
  color: var(--ink-2);
}

.page-faq .faq-list {
  display: grid;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
  transition: border-left-color 0.18s ease;
}

.page-faq .faq-item:hover {
  border-left-color: var(--lime-2);
}

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

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 14px;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  transition: background 0.18s ease;
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  background: var(--panel);
  outline: none;
}

.page-faq .faq-item__idx {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

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

.page-faq .faq-item__mark {
  position: relative;
  width: 12px;
  height: 12px;
  align-self: center;
  flex: none;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--lime);
}

.page-faq .faq-item__mark::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-item__mark::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
  transition: opacity 0.2s ease;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 14px 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

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

/* ---------- 工单区块 ---------- */
.page-faq .faq-ticket {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(22px, 3vw, 32px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-flow__step {
  position: relative;
  padding: 14px 14px 16px 20px;
  border-bottom: 1px solid var(--line);
  transition: background 0.18s ease;
}

.page-faq .faq-flow__step::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: transparent;
  transition: background 0.18s ease;
}

.page-faq .faq-flow__step:hover,
.page-faq .faq-flow__step:focus-within {
  background: var(--panel);
}

.page-faq .faq-flow__step:hover::before,
.page-faq .faq-flow__step:focus-within::before {
  background: var(--lime);
}

.page-faq .faq-flow__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .faq-flow__title {
  margin: 4px 0 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-flow__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

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

.page-faq .faq-ticket__figure .figure__frame {
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-ticket__figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-item__a {
    padding-left: 42px;
  }

  .page-faq .faq-item__q {
    padding: 15px 18px;
  }

  .page-faq .faq-item__a {
    padding-right: 18px;
  }
}

@media (min-width: 800px) {
  .page-faq .faq-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-strip__cell {
    border-right: 1px solid var(--line);
    border-bottom: none;
  }

  .page-faq .faq-strip__cell:nth-child(2n) {
    border-right: 1px solid var(--line);
  }

  .page-faq .faq-strip__cell:last-child {
    border-right: none;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }

  .page-faq .faq-ticket {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 6px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-index__link {
    border-left-width: 2px;
    padding: 9px 12px;
  }

  .page-faq .faq-head__title {
    font-size: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-flow__step,
  .page-faq .faq-flow__step::before {
    transition: none;
  }
}