.page-faq {
  --faq-radius: 12px;
  --faq-card: rgba(255, 255, 255, 0.58);
  --faq-line: rgba(20, 18, 15, 0.10);
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* 首屏 */
.page-faq .faq-hero {
  padding-top: clamp(20px, 4vw, 44px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

.page-faq .faq-eyebrow {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange-deep);
}

.page-faq .faq-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 7vw, 60px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-faq .faq-lede {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(20, 18, 15, 0.78);
}

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 30px;
  margin: 24px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1;
  color: var(--teal);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 7px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(20, 18, 15, 0.62);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border-radius: var(--faq-radius);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background: var(--sand-deep);
}

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

.page-faq .faq-hero__tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 6px 11px;
  border-radius: 999px;
  background: rgba(6, 33, 31, 0.8);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

/* 分组索引条 */
.page-faq .faq-index {
  margin-top: clamp(24px, 4vw, 44px);
  background: var(--teal);
  color: #fff;
}

.page-faq .faq-index__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: rgba(255, 255, 255, 0.14);
}

.page-faq .faq-index__link {
  display: grid;
  gap: 4px;
  padding: 15px 16px;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.86);
  border-left: 3px solid transparent;
  transition: background 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible,
.page-faq .faq-index__link.is-active {
  background: rgba(18, 201, 180, 0.16);
  border-left-color: var(--cyan);
  color: #fff;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-index__label {
  font-size: 15px;
  font-weight: 600;
}

.page-faq .faq-index__hint {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.62);
}

/* 主体布局 */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
  padding-top: clamp(24px, 4vw, 46px);
}

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

.page-faq .faq-group {
  scroll-margin-top: 90px;
  padding-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(26px, 4vw, 44px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: 16px;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.12;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-faq .faq-group__lede {
  flex-basis: 100%;
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(20, 18, 15, 0.7);
}

/* 折叠问答卡 */
.page-faq .qa {
  position: relative;
  margin-bottom: 8px;
  background: var(--faq-card);
  border: 1px solid var(--faq-line);
  border-radius: 10px;
  overflow: hidden;
  transition: background 180ms var(--ease);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 200ms var(--ease);
}

.page-faq .qa[open]::before {
  transform: scaleY(1);
}

.page-faq .qa[open] {
  background: rgba(255, 255, 255, 0.82);
}

.page-faq .qa__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

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

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

.page-faq .qa__mark {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--orange-deep);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa__chev {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--teal);
  border-bottom: 2px solid var(--teal);
  transform: rotate(-45deg);
  transition: transform 180ms var(--ease);
}

.page-faq .qa[open] .qa__chev {
  transform: rotate(45deg);
}

.page-faq .qa__body {
  padding: 0 16px 16px 40px;
}

.page-faq .qa__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .qa__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(20, 18, 15, 0.68);
}

.page-faq .qa__body .text-link {
  color: var(--orange-deep);
}

/* 状态色图例 */
.page-faq .legend {
  display: grid;
  gap: 10px;
  margin: 12px 0 16px;
  padding: 14px 16px;
  border-radius: 10px;
  background: var(--sand-deep);
}

.page-faq .legend__item {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  color: var(--ink);
}

.page-faq .legend__sw {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  flex: 0 0 auto;
}

.page-faq .legend__sw--live {
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(134, 230, 75, 0.28);
}

.page-faq .legend__sw--soon {
  background: var(--amber);
}

.page-faq .legend__sw--done {
  background: var(--ash);
}

/* 票价刻度尺 */
.page-faq .scale {
  margin: 12px 0 16px;
  padding: 16px;
  border-radius: 10px;
  background: var(--sand-deep);
}

.page-faq .scale__bar {
  display: grid;
  grid-template-columns: 3fr 6fr 8fr 5fr;
  gap: 2px;
  height: 14px;
}

.page-faq .scale__seg {
  display: block;
  border-radius: 2px;
}

.page-faq .scale__seg--a {
  background: rgba(20, 18, 15, 0.18);
}

.page-faq .scale__seg--b {
  background: rgba(20, 18, 15, 0.34);
}

.page-faq .scale__seg--c {
  background: var(--orange);
}

.page-faq .scale__seg--d {
  background: var(--orange-deep);
}

.page-faq .scale__labels {
  display: grid;
  grid-template-columns: 3fr 6fr 8fr 5fr;
  gap: 2px;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  color: rgba(20, 18, 15, 0.72);
}

.page-faq .scale__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(20, 18, 15, 0.66);
}

.page-faq .faq-inline-link {
  margin: 14px 0 0;
  font-size: 14px;
  color: rgba(20, 18, 15, 0.7);
}

/* 反馈配图 */
.page-faq .faq-figure {
  margin: 0 0 16px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background: var(--sand-deep);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.page-faq .faq-figure__cap {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(20, 18, 15, 0.62);
  background: rgba(255, 255, 255, 0.5);
}

/* 联系路径 */
.page-faq .faq-reach {
  margin-top: clamp(30px, 5vw, 54px);
  padding: clamp(20px, 3.4vw, 34px);
  border-radius: var(--faq-radius);
  background: var(--night);
  color: var(--sand);
}

.page-faq .faq-reach__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.2vw, 30px);
  line-height: 1.16;
  color: #fff;
}

.page-faq .faq-reach__lede {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(233, 220, 198, 0.8);
}

.page-faq .paths {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .path-row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px dashed rgba(233, 220, 198, 0.24);
}

.page-faq .path-row__k {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .path-row__v {
  font-family: var(--font-mono);
  font-size: 15px;
  word-break: break-word;
  color: #fff;
}

.page-faq .path-row__n {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(233, 220, 198, 0.72);
}

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

/* 侧栏入口 */
.page-faq .faq-aside {
  min-width: 0;
}

.page-faq .faq-aside__inner {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-radius: var(--faq-radius);
  border: 1px solid var(--faq-line);
  background: var(--glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-faq .faq-aside__title {
  display: none;
  margin: 0 0 4px;
  color: rgba(20, 18, 15, 0.55);
}

.page-faq .faq-quick {
  flex: 1 1 0;
  min-width: 0;
  display: grid;
  gap: 3px;
  padding: 10px 12px;
  border-radius: 8px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--faq-line);
  transition: background 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-quick:hover,
.page-faq .faq-quick:focus-visible {
  background: var(--teal);
  border-color: var(--teal);
}

.page-faq .faq-quick__k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--orange-deep);
}

.page-faq .faq-quick__t {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-quick__d {
  display: none;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(20, 18, 15, 0.62);
}

.page-faq .faq-quick:hover .faq-quick__k,
.page-faq .faq-quick:focus-visible .faq-quick__k {
  color: var(--cyan);
}

.page-faq .faq-quick:hover .faq-quick__t,
.page-faq .faq-quick:focus-visible .faq-quick__t {
  color: #fff;
}

.page-faq .faq-quick:hover .faq-quick__d,
.page-faq .faq-quick:focus-visible .faq-quick__d {
  color: rgba(233, 220, 198, 0.78);
}

/* 断点 */
@media (min-width: 640px) {
  .page-faq .legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .scale__labels {
    font-size: 11px;
  }

  .page-faq .faq-aside__inner {
    flex-wrap: nowrap;
  }

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

@media (min-width: 760px) {
  .page-faq .path-row {
    grid-template-columns: 96px minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 4px 16px;
    align-items: baseline;
  }

  .page-faq .faq-aside__inner {
    gap: 10px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-aside__inner {
    display: grid;
    gap: 8px;
    padding: 14px;
    background: var(--glass);
  }

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

  .page-faq .faq-quick {
    flex: none;
  }

  .page-faq .qa__summary {
    padding: 16px 20px;
  }

  .page-faq .qa__body {
    padding: 0 20px 18px 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa::before,
  .page-faq .qa__chev,
  .page-faq .faq-index__link,
  .page-faq .faq-quick {
    transition: none;
  }
}