.page-faq {
  display: block;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .faq-crumb {
  padding-top: 18px;
  padding-bottom: 6px;
  font-size: 13px;
}
.page-faq .faq-crumb a {
  color: var(--mist);
  text-decoration: none;
}
.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--cyan);
}
.page-faq .faq-crumb span[aria-current="page"] {
  color: var(--bone);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(28px, 5vw, 62px) 0 clamp(32px, 5.4vw, 74px);
  background:
    radial-gradient(120% 92% at 88% 0%, rgba(63, 224, 200, 0.15), transparent 58%),
    radial-gradient(88% 78% at 8% 100%, rgba(181, 98, 60, 0.18), transparent 62%),
    linear-gradient(180deg, var(--ink-deep), var(--ink));
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-hero__inner {
  position: relative;
}
.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.4vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--bone);
  max-width: 18ch;
}
.page-faq .faq-hero__title span {
  color: var(--amber);
}
.page-faq .faq-hero__lead {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 44ch;
  font-size: clamp(15px, 1.5vw, 17px);
  color: rgba(242, 237, 227, 0.78);
}
.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(158px, 1fr));
  gap: 16px 24px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
}
.page-faq .faq-hero__stat {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}
.page-faq .faq-hero__stat dt {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}
.page-faq .faq-hero__stat dd {
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--bone);
}
.page-faq .faq-hero__num {
  color: var(--amber);
  font-size: 20px;
  letter-spacing: -0.01em;
}

/* ---------- 分类命令条 ---------- */
.page-faq .faq-index {
  background: rgba(16, 19, 20, 0.82);
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-index__inner {
  padding-top: 12px;
  padding-bottom: 12px;
}
.page-faq .faq-index__list {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--mist);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}
.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--bone);
  border-color: var(--cyan);
  background: rgba(63, 224, 200, 0.08);
}
.page-faq .faq-chip__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--moss);
  flex: none;
}
.page-faq .faq-index__list li:nth-child(1) .faq-chip__dot { background: var(--cyan); }
.page-faq .faq-index__list li:nth-child(2) .faq-chip__dot { background: var(--amber); }
.page-faq .faq-index__list li:nth-child(3) .faq-chip__dot { background: var(--ember); }
.page-faq .faq-index__list li:nth-child(4) .faq-chip__dot { background: var(--clay); }
.page-faq .faq-index__list li:nth-child(5) .faq-chip__dot { background: var(--moss); }
.page-faq .faq-index__list li:nth-child(6) .faq-chip__dot { background: var(--cyan); }
.page-faq .faq-index__list li:nth-child(7) .faq-chip__dot { background: var(--amber); }

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 54px);
  padding-top: clamp(32px, 4.6vw, 64px);
  padding-bottom: clamp(44px, 6vw, 96px);
}

/* ---------- 热门问题索引 ---------- */
.page-faq .faq-aside {
  padding: 18px 18px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, rgba(42, 47, 44, 0.6), rgba(16, 19, 20, 0.55));
}
.page-faq .faq-aside__title {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-faq .faq-hot {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqhot;
}
.page-faq .faq-hot li {
  counter-increment: faqhot;
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-hot a {
  display: flex;
  gap: 10px;
  padding: 12px 0;
  color: var(--bone);
  font-size: 14px;
  line-height: 1.55;
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq .faq-hot a::before {
  content: counter(faqhot, decimal-leading-zero);
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}
.page-faq .faq-hot a:hover,
.page-faq .faq-hot a:focus-visible {
  color: var(--amber);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(38px, 5vw, 68px);
}
.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
  padding-top: 14px;
}
.page-faq .faq-group--clay .faq-group__head {
  border-top-color: var(--clay);
}
.page-faq .faq-group__num {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  flex: none;
}
.page-faq .faq-group--clay .faq-group__num {
  color: var(--clay);
}
.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 29px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--bone);
}

/* ---------- 问答卡 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--line-soft);
  border-left: 2px solid transparent;
  padding-left: 12px;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.page-faq .qa:hover {
  border-left-color: var(--cyan);
}
.page-faq .qa[open] {
  border-left-color: var(--amber);
  background: linear-gradient(90deg, rgba(255, 194, 71, 0.07), rgba(255, 194, 71, 0) 62%);
}
.page-faq .qa__summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.5;
  color: var(--bone);
}
.page-faq .qa__summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa__summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 4px;
}
.page-faq .qa__idx {
  flex: none;
  font-size: 12px;
  color: var(--mist);
  letter-spacing: 0.06em;
}
.page-faq .qa__q {
  flex: 1 1 auto;
}
.page-faq .qa__mark {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 4px;
  border-right: 2px solid var(--mist);
  border-bottom: 2px solid var(--mist);
  transform: rotate(45deg);
  transition: transform 0.22s ease, border-color 0.22s ease;
}
.page-faq .qa[open] .qa__mark {
  transform: rotate(-135deg);
  border-color: var(--amber);
}
.page-faq .qa__body {
  padding: 0 0 20px;
}
.page-faq .qa__body p {
  margin: 0;
  max-width: 44ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(242, 237, 227, 0.8);
}
.page-faq .faq-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 200, 0.4);
}
.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--carbon);
  overflow: hidden;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 收束 ---------- */
.page-faq .faq-cta {
  margin-bottom: clamp(46px, 6vw, 96px);
  padding: clamp(22px, 3.2vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: linear-gradient(120deg, rgba(63, 224, 200, 0.13), rgba(255, 138, 61, 0.15));
}
.page-faq .faq-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 30px);
  letter-spacing: -0.01em;
  color: var(--bone);
}
.page-faq .faq-cta__text {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: 15.5px;
  color: rgba(242, 237, 227, 0.8);
}
.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .qa__body {
    padding-left: 30px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 286px;
    align-items: start;
  }
  .page-faq .faq-main {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
  }
  .page-faq .faq-aside {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 92px;
  }
  .page-faq .faq-hot {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-faq .faq-hero__title {
    max-width: 20ch;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__mark,
  .page-faq .faq-chip,
  .page-faq .faq-hot a {
    transition: none;
  }
}
</main>