.page-faq {
  --faq-sticky: calc(var(--bar-h) + var(--rail-h));
  --faq-gap: 1.25rem;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq [id] {
  scroll-margin-top: calc(var(--faq-sticky) + 64px);
}

.page-faq .faq-ico {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: 0 0 auto;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--mist);
  padding-top: 1.5rem;
}

.page-faq .faq-crumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--lemon);
  border-bottom-color: var(--lemon);
}

.page-faq .faq-crumb .crumb__sep {
  color: var(--hair);
}

.page-faq .faq-crumb .crumb__now {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-bottom: 3.5rem;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(255, 106, 43, 0.22), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-soft) 100%);
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 2.25rem;
  margin-top: 2rem;
}

.page-faq h1 {
  margin: 0.5rem 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2.5rem, 9.5vw, 5.2rem);
  line-height: 1.03;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-faq .faq-accent {
  display: block;
  color: var(--orange);
}

.page-faq .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--lemon);
}

.page-faq .faq-hero__lede {
  margin: 1.35rem 0 0;
  max-width: 46ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-faq .faq-hero__facts li {
  border-top: 1px solid var(--hair);
  padding-top: 0.65rem;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--mist);
}

.page-faq .faq-hero__facts b {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--lemon);
  margin-bottom: 0.2rem;
}

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

.page-faq .faq-hero__shot img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  object-fit: cover;
}

.page-faq .faq-hero__shot figcaption {
  margin-top: 0.75rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--orange);
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 主题跳转条 ---------- */
.page-faq .faq-jump {
  position: sticky;
  top: var(--faq-sticky);
  z-index: 30;
  background: rgba(11, 15, 14, 0.95);
  border-bottom: 1px solid var(--hair);
  backdrop-filter: blur(8px);
}

.page-faq .faq-jump__inner {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  overflow: hidden;
}

.page-faq .faq-jump__label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--steel);
  padding-right: 0.5rem;
  border-right: 1px solid var(--hair);
}

.page-faq .faq-jump__list {
  display: flex;
  gap: 0.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-jump__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-jump__link {
  display: block;
  white-space: nowrap;
  padding: 0.85rem 0.65rem;
  font-size: 0.8rem;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-faq .faq-jump__link[aria-current="true"],
.page-faq .faq-jump__link[data-current="true"] {
  color: var(--lemon);
  border-bottom-color: var(--orange);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-sec {
  padding: 3.25rem 0 3.75rem;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-sec--pine {
  background: var(--pine);
  border-top: 1px solid rgba(216, 255, 62, 0.32);
}

.page-faq .faq-sec__head {
  display: grid;
  gap: 0.7rem;
  margin-bottom: 1.75rem;
  max-width: 62ch;
}

.page-faq .faq-sec__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-sec__kicker span {
  color: var(--lemon);
}

.page-faq .faq-sec__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.55rem, 5vw, 2.35rem);
  line-height: 1.2;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-faq .faq-sec__sub {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .tag {
  justify-self: start;
}

/* ---------- 五个高频问题：错位卡片 ---------- */
.page-faq .faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  counter-reset: fq;
}

.page-faq .faq-quick__item {
  position: relative;
  counter-increment: fq;
  padding: 2.7rem 1.25rem 1.35rem;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: linear-gradient(158deg, rgba(15, 46, 35, 0.72), rgba(11, 15, 14, 0.55));
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-quick__item::before {
  content: counter(fq, decimal-leading-zero);
  position: absolute;
  top: 1rem;
  left: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-quick__item:hover,
.page-faq .faq-quick__item:focus-within {
  border-color: var(--orange);
  background-color: rgba(255, 106, 43, 0.05);
}

.page-faq .faq-quick__q {
  margin: 0 0 0.7rem;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-quick__a {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-quick__tag {
  display: inline-block;
  overflow: hidden;
  height: 0;
  margin-top: 0;
  opacity: 0;
  padding: 0 0.6rem;
  border: 1px solid var(--hair);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  line-height: 1.6rem;
  color: var(--steel);
  transition: opacity 180ms var(--ease), height 180ms var(--ease), margin-top 180ms var(--ease);
}

.page-faq .faq-quick__item:hover .faq-quick__tag,
.page-faq .faq-quick__item:focus-within .faq-quick__tag {
  height: 1.7rem;
  margin-top: 0.95rem;
  opacity: 1;
}

@media (hover: none) {
  .page-faq .faq-quick__tag {
    height: 1.7rem;
    margin-top: 0.95rem;
    opacity: 1;
  }
}

/* ---------- 手风琴 ---------- */
.page-faq .qa {
  border-top: 1px solid var(--hair);
}

.page-faq .faq-sec--pine .qa {
  border-top-color: rgba(245, 241, 232, 0.16);
}

.page-faq .qa__item {
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-sec--pine .qa__item {
  border-bottom-color: rgba(245, 241, 232, 0.16);
}

.page-faq .qa__item > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr) 1.2rem;
  align-items: start;
  gap: 0.5rem;
  padding: 1.15rem 0;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .qa__item > summary:hover,
.page-faq .qa__item > summary:focus-visible {
  color: var(--orange);
}

.page-faq .qa__item[open] > summary {
  color: var(--orange);
}

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--steel);
  padding-top: 0.35rem;
}

.page-faq .qa__item[open] .qa__num {
  color: var(--lemon);
}

.page-faq .qa__sign {
  position: relative;
  display: block;
  width: 13px;
  height: 13px;
  margin-top: 0.42rem;
  justify-self: end;
}

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

.page-faq .qa__sign::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  transform: translateY(-50%);
}

.page-faq .qa__sign::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1.5px;
  transform: translateX(-50%);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .qa__item[open] .qa__sign::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__body {
  padding: 0 0 1.35rem;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .qa__body p {
  margin: 0 0 0.6rem;
  max-width: 68ch;
}

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

.page-faq .qa__body a {
  color: var(--lemon);
  text-decoration: none;
  border-bottom: 1px solid rgba(216, 255, 62, 0.4);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

/* ---------- 还没解决 ---------- */
.page-faq .faq-help {
  display: grid;
  gap: 1.75rem;
}

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

.page-faq .faq-help__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  object-fit: cover;
}

.page-faq .faq-help__fig figcaption {
  margin-top: 0.7rem;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-contact {
  list-style: none;
  margin: 0 0 1.3rem;
  padding: 0;
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 0.15rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(245, 241, 232, 0.14);
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--steel);
}

.page-faq .faq-contact__v {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__tip {
  margin: 0 0 1.4rem;
  padding-left: 0.85rem;
  border-left: 2px solid var(--lemon);
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 1.5rem;
}

.page-faq .faq-help__more {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.9;
  color: var(--steel);
}

.page-faq .faq-help__more a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--hair);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-help__more a:hover,
.page-faq .faq-help__more a:focus-visible {
  color: var(--lemon);
  border-bottom-color: var(--lemon);
}

.page-faq .faq-help__more span {
  padding: 0 0.4rem;
  color: var(--hair);
}

/* ---------- 断点 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-hero {
    padding-bottom: 4.5rem;
  }

  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-faq .faq-hero__shot {
    max-width: 30rem;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: minmax(5.5rem, 6.5rem) minmax(0, 1fr);
    gap: 0.85rem;
    align-items: baseline;
  }

  .page-faq .qa__body {
    padding-left: 2.6rem;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.85fr);
    gap: 3.5rem;
    align-items: end;
  }

  .page-faq .faq-hero__shot {
    max-width: none;
  }

  .page-faq .faq-hero__shot img {
    max-height: 34rem;
  }

  .page-faq .faq-sec {
    padding: 4.5rem 0 5rem;
  }

  .page-faq .faq-sec__head {
    margin-bottom: 2.5rem;
  }

  .page-faq .faq-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.4rem;
    align-items: start;
  }

  .page-faq .faq-quick__item:nth-child(2n) {
    margin-top: 2.6rem;
  }

  .page-faq .faq-quick__item:nth-child(5) {
    grid-column: 1 / -1;
    max-width: 34rem;
    margin-top: 2.6rem;
  }

  .page-faq .qa__item > summary {
    font-size: 1.05rem;
    padding: 1.3rem 0;
    grid-template-columns: 2.6rem minmax(0, 1fr) 1.2rem;
  }

  .page-faq .qa__body {
    padding-left: 3.2rem;
    font-size: 0.94rem;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
  }
}