.page-faq {
  --faq-axis: 44px;
  --faq-quiet: rgba(232, 228, 214, 0.74);
  background: var(--ink);
  color: var(--ivory);
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-faq section[id],
.page-faq [id="quick"] {
  scroll-margin-top: 104px;
}

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

.page-faq a {
  color: var(--cyan);
  text-decoration: none;
}

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

.page-faq :focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 88% -20%, rgba(95, 242, 200, 0.11), transparent 62%),
    radial-gradient(90% 70% at 0% 110%, rgba(31, 77, 58, 0.32), transparent 66%),
    var(--ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(62, 107, 87, 0.85) 0 8px,
    transparent 8px 20px
  );
  opacity: 0.55;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
  padding-block: clamp(26px, 4vw, 56px);
}

.page-faq .faq-hero__lead {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .sd-crumbs {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sage);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-faq .sd-crumbs a {
  color: var(--sage);
}

.page-faq .sd-crumbs a:hover {
  color: var(--cyan);
}

.page-faq .sd-crumbs__sep {
  color: var(--line-strong);
}

.page-faq h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 5vw, 3.3rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--ivory);
}

.page-faq .faq-hero__text {
  margin: 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-quiet);
}

.page-faq .faq-stats {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-stats li {
  background: var(--ink);
  padding: 14px 16px;
  display: grid;
  gap: 4px;
}

.page-faq .faq-stats__n {
  font-family: var(--font-num);
  font-size: 1.55rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  color: var(--ivory);
  line-height: 1.1;
}

.page-faq .faq-stats__l {
  font-size: 13px;
  color: var(--sage);
  letter-spacing: 0.02em;
}

/* 首屏侧栏 */
.page-faq .faq-hero__side {
  position: relative;
  background: var(--graphite);
  border: 1px solid var(--line);
  padding: clamp(18px, 3vw, 26px);
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .faq-hero__side::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 48px;
  height: 2px;
  background: var(--cyan);
}

.page-faq .faq-hero__sideTitle {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-steps li {
  display: grid;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line-soft);
}

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

.page-faq .faq-steps__k {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-faq .faq-steps__d {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--faq-quiet);
}

.page-faq .faq-steps__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  color: var(--ivory);
  font-family: var(--font-num);
  font-size: 13.5px;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  transition: border-color 180ms ease, color 180ms ease, background-color 180ms ease;
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(95, 242, 200, 0.07);
}

/* ---------- 通用板块 ---------- */
.page-faq .faq-block {
  padding-block: clamp(38px, 6vw, 80px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-block__head {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  align-items: end;
}

.page-faq h2 {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--ivory);
}

.page-faq .faq-block__text {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-quiet);
}

.page-faq .sd-eyebrow {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--moss);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.page-faq .sd-eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--cyan);
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(27, 43, 39, 0.9), rgba(6, 17, 15, 0.95));
  padding: 10px;
}

.page-faq .faq-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--sage);
  letter-spacing: 0.02em;
}

/* ---------- 版本归档 ---------- */
.page-faq .faq-versions {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-faq .faq-versions__axis {
  display: none;
}

.page-faq .faq-versions__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2vw, 22px);
}

.page-faq .faq-vcard {
  position: relative;
  background: var(--graphite);
  border: 1px solid var(--line);
  padding: clamp(18px, 2.6vw, 28px);
  display: grid;
  gap: 12px;
  align-content: start;
  overflow: hidden;
}

.page-faq .faq-vcard::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 84px;
  height: 84px;
  background: radial-gradient(circle at 100% 0%, rgba(95, 242, 200, 0.14), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-vcard__top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
}

.page-faq .faq-vcard__ver {
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  line-height: 1;
}

.page-faq .faq-vcard__meta {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--sage);
}

.page-faq .faq-vcard h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-faq .faq-vcard__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--faq-quiet);
}

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

.page-faq .faq-vcard li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--faq-quiet);
}

.page-faq .faq-vcard li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--moss);
}

.page-faq .faq-vcard__link {
  justify-self: start;
  margin-top: 4px;
  font-size: 14px;
  color: var(--cyan);
  border-bottom: 1px solid var(--line-cyan);
  padding-bottom: 3px;
  min-height: 32px;
  display: inline-flex;
  align-items: center;
}

/* ---------- 高频速查 ---------- */
.page-faq .faq-block--quick {
  background:
    linear-gradient(180deg, rgba(27, 43, 39, 0.42), transparent 70%);
}

.page-faq .faq-quick {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}

.page-faq .faq-quick__main {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-tags {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-tags a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  background: rgba(27, 43, 39, 0.62);
  color: var(--ivory);
  font-size: 14.5px;
  line-height: 1.4;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.page-faq .faq-tags a:hover,
.page-faq .faq-tags a:focus-visible {
  background: var(--deep-green);
  border-color: var(--line-cyan);
  color: var(--cyan-soft);
}

.page-faq .faq-quick__note {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sage);
}

/* ---------- 分类问答 ---------- */
.page-faq .faq-cat {
  padding-block: clamp(34px, 5vw, 68px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-cat__grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}

.page-faq .faq-cat__head {
  display: grid;
  gap: 4px;
  align-content: start;
}

.page-faq .faq-cat__text {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-quiet);
}

.page-faq .faq-cat__list {
  display: grid;
  gap: 6px;
}

.page-faq .faq-q {
  border-left: 2px solid var(--line-strong);
  border-bottom: 1px solid var(--line-soft);
  padding-left: 16px;
  background: linear-gradient(to right, rgba(95, 242, 200, 0.045), transparent 46%);
  transition: border-color 180ms ease;
}

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

.page-faq .faq-q summary {
  list-style: none;
  cursor: pointer;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 0;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ivory);
}

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

.page-faq .faq-q summary::marker {
  content: "";
}

.page-faq .faq-q summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
  transform: translateY(-1px);
}

.page-faq .faq-q[open] summary::after {
  content: "\2212";
}

.page-faq .faq-q__body {
  padding: 0 4px 18px 0;
}

.page-faq .faq-q__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-quiet);
}

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

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

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  padding-block: clamp(40px, 6vw, 88px);
  background:
    linear-gradient(155deg, rgba(31, 77, 58, 0.34), transparent 58%),
    var(--ink);
}

.page-faq .faq-support__inner {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}

.page-faq .faq-support__lead {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.page-faq .sd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 22px;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.page-faq .faq-support__related {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--sage);
}

.page-faq .faq-support__panel {
  position: relative;
  padding: clamp(20px, 2.8vw, 30px);
  display: grid;
  gap: 16px;
  background: rgba(14, 29, 25, 0.82);
  border: 1px solid var(--line-strong);
}

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

.page-faq .faq-contact__row {
  display: grid;
  gap: 6px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-contact__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-contact dt {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-faq .faq-contact dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ivory);
  word-break: break-word;
}

.page-faq .sd-copy {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid var(--line-cyan);
  background: rgba(95, 242, 200, 0.08);
  color: var(--cyan-soft);
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: 0.01em;
  cursor: pointer;
  text-align: left;
}

.page-faq .sd-copy:hover,
.page-faq .sd-copy:focus-visible {
  background: rgba(95, 242, 200, 0.16);
}

.page-faq .sd-copy[data-copied] {
  border-color: var(--cyan);
  color: var(--ink);
  background: var(--cyan);
}

.page-faq .faq-support__tip {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--sage);
}

.page-faq .faq-support__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--moss);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-faq .faq-block__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-versions {
    grid-template-columns: var(--faq-axis) minmax(0, 1fr);
    gap: clamp(20px, 3vw, 32px);
  }

  .page-faq .faq-versions__axis {
    display: block;
    position: relative;
    border-left: 2px solid rgba(62, 107, 87, 0.7);
    margin-left: 14px;
  }

  .page-faq .faq-versions__axis::before {
    content: "";
    position: absolute;
    inset: 0 auto auto -2px;
    width: 2px;
    height: 46%;
    background: linear-gradient(to bottom, var(--cyan), transparent);
  }

  .page-faq .faq-versions__axis::after {
    content: "";
    position: absolute;
    inset: 0 0 0 -6px;
    background: repeating-linear-gradient(
      to bottom,
      rgba(157, 179, 166, 0.34) 0 1px,
      transparent 1px 34px
    );
    pointer-events: none;
  }

  .page-faq .faq-quick {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.58fr);
  }

  .page-faq .faq-cat__grid {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
    gap: clamp(28px, 4vw, 64px);
  }

  .page-faq .faq-support__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-versions__list {
    gap: 24px;
  }

  .page-faq .faq-quick {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.5fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-tags a,
  .page-faq .faq-q {
    transition: none;
  }
}