.page-faq {
  background: var(--paper);
  color: var(--ink);
}

/* ================= 首屏 ================= */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 34px 0 44px;
  background: var(--indigo);
  color: var(--paper);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -14%;
  width: 78%;
  height: 176%;
  background: var(--ochre);
  transform: skewX(-12deg);
  opacity: 0.9;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: var(--grid) var(--grid);
  pointer-events: none;
}

.page-faq .faq-hero > .wrap {
  position: relative;
  z-index: 2;
}

.page-faq .faq-hero .breadcrumbs {
  color: rgba(244, 239, 231, 0.68);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
}

.page-faq .faq-hero .breadcrumbs a {
  color: rgba(244, 239, 231, 0.92);
  text-decoration: none;
  border-bottom: 1px solid rgba(244, 239, 231, 0.34);
}

.page-faq .faq-hero .breadcrumbs a:hover,
.page-faq .faq-hero .breadcrumbs a:focus-visible {
  border-bottom-color: var(--lime);
  color: var(--lime);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 22px;
}

.page-faq .faq-hero__title {
  margin: 14px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-32);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lede {
  max-width: 56ch;
  margin: 0;
  color: rgba(244, 239, 231, 0.9);
  font-size: var(--fs-16);
  line-height: 1.75;
}

.page-faq .faq-hero__aside {
  padding: 16px 18px;
  border: 1px solid rgba(244, 239, 231, 0.28);
  background: rgba(20, 22, 26, 0.34);
}

.page-faq .faq-hero__aside-title {
  margin: 0 0 10px;
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-faq .faq-hero__aside-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-hero__aside-list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: var(--fs-14);
  line-height: 1.6;
  color: rgba(244, 239, 231, 0.9);
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(244, 239, 231, 0.14);
}

.page-faq .faq-hero__aside-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-hero__aside-list .mono {
  flex: 0 0 auto;
  color: var(--lime);
  font-size: var(--fs-12);
}

/* ================= 主体骨架 ================= */
.page-faq .faq-body {
  padding: 40px 0 68px;
}

.page-faq .faq-shell {
  display: grid;
  gap: 28px;
}

/* ================= 分类索引 ================= */
.page-faq .faq-index__label {
  margin: 0 0 10px;
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--ochre);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--sand);
  color: #3a3f47;
  font-size: var(--fs-14);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-faq .faq-index__num {
  color: var(--ochre);
  font-size: var(--fs-12);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--lime);
  color: var(--cobalt);
}

.page-faq .faq-index__link.is-active {
  background: var(--cobalt);
  border-color: var(--cobalt);
  color: var(--paper);
  font-weight: 700;
}

.page-faq .faq-index__link.is-active .faq-index__num {
  color: var(--lime);
}

.page-faq .faq-index__hint {
  margin: 12px 0 0;
  font-size: var(--fs-12);
  line-height: 1.6;
  color: #5c6067;
}

/* ================= 分类区块 ================= */
.page-faq .faq-cat {
  scroll-margin-top: calc(var(--header-total) + 16px);
}

.page-faq .faq-cat + .faq-cat {
  margin-top: 52px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-cat__head {
  max-width: 70ch;
}

.page-faq .faq-cat__title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-24);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-cat__intro {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: #4a4f57;
}

.page-faq .faq-cat__figure {
  margin: 20px 0 24px;
}

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

/* ================= 问答手风琴 ================= */
.page-faq .faq-list {
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-item__q {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-16);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--cobalt);
}

.page-faq .faq-item[open] > .faq-item__q::after {
  content: "–";
  color: var(--ochre);
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--cobalt);
  background: rgba(199, 204, 209, 0.16);
}

.page-faq .faq-item__code {
  flex: 0 0 auto;
  padding: 1px 6px;
  border: 1px solid rgba(94, 31, 42, 0.3);
  background: rgba(94, 31, 42, 0.08);
  color: var(--wine);
  font-size: var(--fs-12);
  line-height: 1.6;
  letter-spacing: 0.04em;
}

.page-faq .faq-item__text {
  flex: 1 1 12ch;
  min-width: 0;
}

.page-faq .faq-item__a {
  margin-left: 3px;
  padding: 2px 0 20px 15px;
  border-left: 4px solid var(--lime);
  font-size: var(--fs-16);
  line-height: 1.75;
  color: #2c3038;
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  max-width: 68ch;
}

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

.page-faq .faq-item[open] > .faq-item__a {
  animation: faq-reveal 220ms var(--ease);
}

@keyframes faq-reveal {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: none; }
}

.page-faq .faq-key {
  background: none;
  color: inherit;
  font-weight: 700;
  padding-bottom: 1px;
  border-bottom: 2px solid var(--lime);
}

.page-faq .faq-steps {
  margin: 12px 0 14px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: var(--fs-14);
  line-height: 1.65;
  color: #3a3f47;
}

.page-faq .faq-steps__num {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  background: var(--cobalt);
  color: var(--paper);
  font-size: var(--fs-12);
}

.page-faq .faq-item__more {
  margin: 12px 0 0;
  font-size: var(--fs-14);
}

/* ================= 收尾区块 ================= */
.page-faq .faq-cat--tail {
  margin-top: 52px;
  padding: 30px 20px 28px;
  background: var(--indigo);
  color: var(--paper);
  border-top: 0;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-cat--tail .faq-cat__title {
  color: var(--paper);
}

.page-faq .faq-cat--tail .faq-cat__intro {
  color: rgba(244, 239, 231, 0.86);
}

.page-faq .faq-tail {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
}

.page-faq .faq-tail__item {
  padding: 14px 16px;
  border: 1px solid rgba(244, 239, 231, 0.22);
  background: rgba(20, 22, 26, 0.3);
}

.page-faq .faq-tail__key {
  margin: 0 0 6px;
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--lime);
}

.page-faq .faq-tail__item p:last-child {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: rgba(244, 239, 231, 0.9);
}

.page-faq .faq-tail__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0 0;
}

/* ================= 桌面端 ================= */
@media (min-width: 860px) {
  .page-faq .faq-hero {
    padding: 48px 0 60px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: 40px;
    margin-top: 26px;
  }

  .page-faq .faq-hero__title {
    font-size: var(--fs-44);
    margin: 18px 0 20px;
  }

  .page-faq .faq-body {
    padding: 56px 0 88px;
  }

  .page-faq .faq-cat + .faq-cat {
    margin-top: 64px;
    padding-top: 44px;
  }

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

  .page-faq .faq-cat--tail {
    padding: 40px 32px 36px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-shell {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 108px;
  }

  .page-faq .faq-index__list {
    display: block;
    border-left: 2px solid var(--line);
  }

  .page-faq .faq-index__list li + li {
    margin-top: 2px;
  }

  .page-faq .faq-index__link {
    width: 100%;
    margin-left: -2px;
    padding: 10px 12px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    background: rgba(199, 204, 209, 0.16);
    border-left-color: var(--lime);
  }

  .page-faq .faq-index__link.is-active {
    background: transparent;
    border-left-color: var(--ochre);
    color: var(--cobalt);
  }

  .page-faq .faq-index__link.is-active .faq-index__num {
    color: var(--ochre);
  }

  .page-faq .faq-item__q {
    padding: 17px 2px;
  }

  .page-faq .faq-item__a {
    padding-left: 20px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__title {
    font-size: var(--fs-64);
    line-height: 1.05;
  }

  .page-faq .faq-cat__title {
    font-size: var(--fs-32);
  }
}

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

  .page-faq .faq-item[open] > .faq-item__a {
    animation: none;
  }
}
</final>
</main>