.page-faq {
  --faq-paper: #ffffff;
  --faq-rule: rgba(14, 21, 18, 0.14);
  display: block;
  background: var(--c-flesh);
  color: var(--ink);
}

.page-faq .faq-link {
  color: var(--c-board);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--c-kiwi);
  padding-bottom: 1px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--c-lime);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--c-seed);
  color: var(--c-flesh);
  padding: clamp(22px, 5vw, 40px) 0 clamp(40px, 8vw, 88px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -190px;
  right: -150px;
  width: min(760px, 108vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(79, 191, 63, .42), rgba(79, 191, 63, 0) 64%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(243, 247, 236, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 247, 236, .055) 1px, transparent 1px);
  background-size: 58px 58px;
  pointer-events: none;
}

.page-faq .faq-hero .crumbs {
  margin-bottom: clamp(20px, 4vw, 34px);
}

.page-faq .faq-hero .crumbs__link {
  color: var(--on-dark-soft);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-faq .faq-hero .crumbs__link:hover,
.page-faq .faq-hero .crumbs__link:focus-visible {
  color: var(--c-lime);
}

.page-faq .faq-hero .crumbs__sep {
  color: var(--on-dark-soft);
}

.page-faq .faq-hero .crumbs__current {
  color: var(--c-lime);
}

.page-faq .faq-hero .eyebrow {
  color: var(--c-kiwi-lift);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
  align-items: start;
}

.page-faq .faq-hero__title {
  margin: .14em 0 .34em;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2.3rem, 9.6vw, 4.7rem);
  line-height: .98;
  letter-spacing: -.035em;
  color: var(--c-flesh);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 48ch;
  color: var(--on-dark);
  font-size: clamp(.96rem, 1.6vw, 1.06rem);
  line-height: 1.72;
}

.page-faq .faq-status {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, rgba(18, 51, 38, .96) 0%, rgba(14, 21, 18, .97) 72%);
  padding: clamp(20px, 4vw, 30px);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-status::before {
  content: "";
  position: absolute;
  top: -42px;
  right: -42px;
  width: 148px;
  height: 148px;
  border-radius: 50%;
  border: 1px dashed rgba(215, 255, 62, .32);
  pointer-events: none;
}

.page-faq .faq-status::after {
  content: "";
  position: absolute;
  top: 12px;
  right: 12px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 10%, var(--c-seed) 0 2.6px, transparent 3.4px),
    radial-gradient(circle at 90% 50%, var(--c-seed) 0 2.6px, transparent 3.4px),
    radial-gradient(circle at 50% 90%, var(--c-seed) 0 2.6px, transparent 3.4px),
    radial-gradient(circle at 10% 50%, var(--c-seed) 0 2.6px, transparent 3.4px),
    var(--c-lime);
  opacity: .9;
  pointer-events: none;
}

.page-faq .faq-status__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--c-kiwi-lift);
}

.page-faq .faq-status__code {
  margin: 10px 0 12px;
  font-size: clamp(2.5rem, 11vw, 3.5rem);
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--c-lime);
  text-shadow: 0 0 26px rgba(215, 255, 62, .26);
}

.page-faq .faq-status__note {
  margin: 0;
  max-width: 36ch;
  color: var(--on-dark-soft);
  font-size: .86rem;
  line-height: 1.66;
}

.page-faq .faq-status__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: 1px dashed var(--line-dark);
  display: grid;
  gap: 10px;
}

.page-faq .faq-status__list li {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  color: var(--on-dark);
  font-size: .9rem;
  line-height: 1.55;
}

/* ---------- 问答区 ---------- */

.page-faq .faq-desk {
  background: var(--c-flesh);
  color: var(--ink);
  padding: clamp(34px, 6vw, 72px) 0 clamp(44px, 8vw, 92px);
}

.page-faq .faq-desk__inner {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--ink-soft);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 12px;
  border-left: 2px solid rgba(14, 21, 18, .1);
  color: var(--ink-soft);
  text-decoration: none;
  font-size: .92rem;
  font-weight: 500;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--ink);
  border-left-color: var(--c-kiwi);
  background: rgba(79, 191, 63, .09);
}

.page-faq .faq-toc__link .num {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-kiwi);
}

.page-faq .faq-body {
  display: block;
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--bar-h) + 22px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(38px, 6vw, 72px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-faq .faq-group__num {
  padding-top: 6px;
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  color: var(--c-kiwi);
  line-height: 1.1;
}

.page-faq .faq-group__title {
  margin: 0 0 8px;
  font-size: clamp(1.5rem, 4.2vw, 2.05rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 58ch;
  color: var(--ink-soft);
  font-size: clamp(.94rem, 1.6vw, 1.02rem);
  line-height: 1.72;
}

/* 版本氛围图 */

.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3vw, 28px);
  border-radius: var(--r-md);
  border: 1px solid var(--line-dark);
  overflow: hidden;
  background: var(--c-seed);
  box-shadow: var(--shadow-sheet);
}

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

.page-faq .faq-figure__cap {
  padding: 12px 16px;
  background: var(--c-seed);
  color: var(--on-dark-soft);
  font-size: .84rem;
  line-height: 1.6;
}

/* 更新节奏 */

.page-faq .faq-rhythm {
  margin: 0 0 clamp(18px, 3vw, 26px);
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-md);
  background: var(--faq-paper);
  overflow: hidden;
  box-shadow: var(--shadow-sheet);
}

.page-faq .faq-rhythm__row {
  display: grid;
  gap: 3px;
  padding: 15px 16px;
}

.page-faq .faq-rhythm__row + .faq-rhythm__row {
  border-top: 1px dashed var(--faq-rule);
}

.page-faq .faq-rhythm__proj {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--c-kiwi);
}

.page-faq .faq-rhythm__when {
  font-size: clamp(1.2rem, 3.4vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-rhythm__what {
  color: var(--ink-soft);
  font-size: .88rem;
  line-height: 1.6;
}

/* 九类指标 */

.page-faq .faq-metrics {
  list-style: none;
  margin: 0 0 clamp(18px, 3vw, 26px);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.page-faq .faq-metrics__item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-sm);
  background: var(--faq-paper);
  color: var(--ink);
  font-size: .88rem;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-metrics__num {
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--c-kiwi);
}

/* 折叠问答 */

.page-faq .faq-qa {
  display: grid;
  gap: 10px;
}

.page-faq .qa {
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-md);
  background: var(--faq-paper);
  box-shadow: 3px 3px 0 rgba(107, 91, 62, .14);
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(79, 191, 63, .5);
  box-shadow: inset 3px 0 0 var(--c-lime), 4px 4px 0 rgba(107, 91, 62, .16);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 18px;
  color: var(--ink);
  font-size: clamp(.95rem, 1.5vw, 1.02rem);
  font-weight: 700;
  line-height: 1.5;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1.2;
  color: var(--c-kiwi);
  transition: color .2s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  content: "–";
  color: var(--c-orange);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
  border-radius: var(--r-md);
}

.page-faq .qa__a {
  padding: 0 18px 16px;
  color: var(--ink-soft);
  font-size: .94rem;
  line-height: 1.74;
}

.page-faq .qa__a::before {
  content: "";
  display: block;
  height: 1px;
  margin-bottom: 12px;
  background: var(--faq-rule);
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 62ch;
}

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

.page-faq .qa[open] .qa__a {
  animation: faqPanelIn .26s var(--ease) both;
}

/* ---------- 联系支持 ---------- */

.page-faq .faq-reach {
  position: relative;
  overflow: hidden;
  background: var(--c-board);
  color: var(--c-flesh);
  padding: clamp(38px, 7vw, 84px) 0 clamp(44px, 8vw, 92px);
  scroll-margin-top: calc(var(--bar-h) + 22px);
}

.page-faq .faq-reach::before {
  content: "";
  position: absolute;
  left: -130px;
  bottom: -170px;
  width: min(540px, 92vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(255, 138, 61, .3), rgba(255, 138, 61, 0) 66%);
  pointer-events: none;
}

.page-faq .faq-reach__inner {
  position: relative;
  display: grid;
  gap: clamp(26px, 5vw, 52px);
  align-items: start;
}

.page-faq .faq-reach .eyebrow {
  color: var(--c-kiwi-lift);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
}

.page-faq .faq-reach__title {
  margin: .2em 0 .5em;
  font-size: clamp(1.7rem, 5.4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--c-flesh);
}

.page-faq .faq-reach__lede {
  margin: 0;
  max-width: 46ch;
  color: var(--on-dark);
  font-size: clamp(.94rem, 1.6vw, 1rem);
  line-height: 1.7;
}

.page-faq .faq-reach__list {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  border-top: 1px dashed var(--line-dark);
}

.page-faq .faq-reach__row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-dark);
}

.page-faq .faq-reach__key {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--c-kiwi-lift);
}

.page-faq .faq-reach__val {
  color: var(--on-dark);
  font-size: .96rem;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-reach__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(22px, 3vw, 30px) 0 0;
}

.page-faq .faq-reach__figure {
  margin: 0;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.page-faq .faq-reach__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */

@media (max-width: 899px) {
  .page-faq .faq-toc__list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 2px 0 8px;
    scrollbar-width: none;
  }

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

  .page-faq .faq-toc__link {
    flex: 0 0 auto;
    padding: 8px 14px;
    border: 1px solid var(--faq-rule);
    border-radius: var(--r-pill);
    background: var(--faq-paper);
    white-space: nowrap;
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    border-left-color: var(--c-kiwi);
  }
}

@media (min-width: 620px) {
  .page-faq .faq-rhythm__row {
    grid-template-columns: 72px minmax(120px, max-content) minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-faq .faq-reach__row {
    grid-template-columns: 128px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 700px) {
  .page-faq .faq-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
  }

  .page-faq .faq-status {
    margin-top: 12px;
  }

  .page-faq .faq-desk__inner {
    grid-template-columns: minmax(0, 236px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
    align-self: start;
  }

  .page-faq .faq-reach__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa[open] .qa__a {
    animation: none;
  }

  .page-faq .qa,
  .page-faq .qa__q::after,
  .page-faq .faq-toc__link,
  .page-faq .faq-link {
    transition: none;
  }
}