.page-faq {
  --faq-pad-y: clamp(40px, 6vw, 76px);
  display: block;
  color: var(--ink);
  padding-bottom: clamp(56px, 8vw, 112px);
}

.page-faq .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: var(--faq-pad-y) 0 clamp(28px, 4vw, 52px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(115% 85% at 92% -18%, rgba(36, 224, 176, 0.13), transparent 62%),
    radial-gradient(60% 55% at -4% 4%, rgba(255, 122, 43, 0.07), transparent 64%);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-hero__side {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .faq-hero__code {
  margin: 0;
  font-size: 13px;
  color: var(--mint);
}

.page-faq .faq-hero__kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-dim);
  text-transform: uppercase;
}

.page-faq .faq-hero__body h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.4vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 800;
  max-width: 22ch;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px dashed var(--line);
  list-style: none;
  font-size: 13px;
  color: var(--ink-dim);
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
}

.page-faq .faq-hero__facts .mono {
  color: var(--mint);
  font-size: 17px;
  margin-right: 8px;
  letter-spacing: 0.02em;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(150px, 2fr) 10fr;
    gap: clamp(32px, 4vw, 64px);
  }
  .page-faq .faq-hero__side {
    border-right: 1px solid var(--line);
    padding-right: 22px;
  }
}

/* ---------- 快速路径 ---------- */
.page-faq .faq-path {
  padding: clamp(40px, 6vw, 72px) 0 clamp(28px, 4vw, 48px);
}

.page-faq .faq-head {
  display: grid;
  gap: 0;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .faq-head__no {
  display: inline-block;
  font-size: 12px;
  color: var(--mint);
  border-left: 2px solid var(--mint);
  padding-left: 10px;
  line-height: 1.2;
  justify-self: start;
}

.page-faq .faq-head__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.page-faq .faq-head__note {
  margin: 10px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-dim);
}

/* 图片容器 */
.page-faq .faq-figure {
  margin: 0 0 clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  background: var(--sky-850);
  overflow: hidden;
}

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

.page-faq .faq-figure__cap {
  display: block;
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  color: var(--ink-dim);
}

@media (max-width: 640px) {
  .page-faq .faq-figure img {
    aspect-ratio: 16 / 10;
  }
}

/* 步骤 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-step {
  background: var(--sky-900);
  padding: clamp(20px, 2.6vw, 30px);
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-step__no {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--mint-mid);
  background: var(--mint-soft);
  color: var(--mint);
  display: grid;
  place-items: center;
  font-size: 13px;
  letter-spacing: 0;
}

.page-faq .faq-step__title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-faq .faq-step__link {
  justify-self: start;
  margin-top: 4px;
  color: var(--mint);
  font-size: 13px;
  text-decoration: none;
  border-bottom: 1px solid var(--mint-mid);
  padding-bottom: 2px;
  transition: border-color 200ms var(--ease);
}

.page-faq .faq-step__link:hover {
  border-bottom-color: var(--mint);
}

@media (min-width: 840px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- 分组骨架 ---------- */
.page-faq .faq-groups {
  padding: clamp(32px, 5vw, 60px) 0 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-faq .faq-side__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-dim);
}

.page-faq .faq-index {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border-left: 2px solid transparent;
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  color: var(--ink);
  border-left-color: var(--mint-mid);
}

.page-faq .faq-index__item[aria-current] {
  color: var(--mint);
  border-left-color: var(--mint);
  background: var(--mint-soft);
}

.page-faq .faq-index__no {
  font-size: 11px;
  color: var(--mint);
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(190px, 2fr) 10fr;
    align-items: start;
  }
  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
  .page-faq .faq-index {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
  }
}

/* ---------- 问答组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(36px, 5vw, 64px);
}

.page-faq .faq-group__head {
  padding: 0 0 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 4px;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.9vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 700;
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.page-faq .faq-group__no {
  font-size: 12px;
  color: var(--mint);
}

.page-faq .faq-group__note {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-dim);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
  transition: background-color 200ms var(--ease);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(36, 224, 176, 0.06), transparent 62%);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  position: relative;
  padding: 18px 40px 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.62;
  color: var(--ink);
  transition: color 200ms var(--ease);
}

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

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

.page-faq .faq-item__q:hover {
  color: var(--mint);
}

.page-faq .faq-item__q::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 26px;
  width: 10px;
  height: 10px;
  border-right: 1.5px solid var(--mint);
  border-bottom: 1.5px solid var(--mint);
  transform: rotate(45deg);
  transition: transform 240ms var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(-135deg);
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  min-width: 46px;
  font-size: 12px;
  color: var(--mint);
}

.page-faq .faq-item__a {
  padding: 0 40px 22px 60px;
  max-width: 74ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-dim);
}

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

@media (max-width: 600px) {
  .page-faq .faq-item__q {
    flex-direction: column;
    gap: 6px;
    padding: 16px 32px 16px 0;
  }
  .page-faq .faq-item__q::after {
    top: 22px;
  }
  .page-faq .faq-item__no {
    min-width: 0;
  }
  .page-faq .faq-item__a {
    padding: 0 0 20px;
  }
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-resolve {
  display: grid;
  gap: clamp(18px, 2.4vw, 26px);
}

.page-faq .faq-channels {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-channel {
  background: var(--sky-900);
  padding: 18px 20px;
  display: grid;
  gap: 6px;
}

.page-faq .faq-channel__label {
  margin: 0;
  font-size: 11px;
  color: var(--mint);
}

.page-faq .faq-channel--key .faq-channel__label {
  color: var(--pulse);
}

.page-faq .faq-channel__value {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-channel__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--ink-dim);
}

.page-faq .faq-resolve__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--sky-850);
  overflow: hidden;
}

.page-faq .faq-resolve__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  min-height: 170px;
  object-fit: cover;
}

.page-faq .faq-resolve__note {
  margin: 22px 0 0;
  max-width: 70ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-dim);
}

.page-faq .faq-resolve__note a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--mint-mid);
}

.page-faq .faq-resolve__note a:hover {
  border-bottom-color: var(--mint);
}

@media (min-width: 900px) {
  .page-faq .faq-resolve {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: stretch;
  }
}

/* ---------- 动效退化 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__item,
  .page-faq .faq-item__q::after,
  .page-faq .faq-item,
  .page-faq .faq-step__link {
    transition: none;
  }
}