.page-faq {
  --faq-radius: 0px;
  display: block;
}

.page-faq .faq-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  margin-top: 20px;
}

.page-faq .faq-hero__frame {
  position: relative;
  border: 1px solid var(--line-strong);
  padding: clamp(20px, 4vw, 48px);
  background:
    linear-gradient(150deg, var(--ink-850) 0%, var(--ink-900) 62%),
    var(--ink-900);
  overflow: hidden;
}

.page-faq .faq-hero__frame::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  pointer-events: none;
}

.page-faq .faq-hero__frame::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 72px;
  height: 72px;
  background: linear-gradient(225deg, var(--ink-900) 0 47%, var(--orange) 47% 49%, transparent 49%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  margin-top: 18px;
}

.page-faq .faq-hero__lead h1 {
  font-size: var(--fs-h1);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  max-width: 18ch;
}

.page-faq .faq-hero__text {
  color: var(--slate);
  font-size: var(--fs-body);
  line-height: 1.75;
  max-width: 56ch;
  margin: 0 0 24px;
}

.page-faq .faq-hero__facts {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__fact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
}

.page-faq .faq-hero__fact dt {
  flex: 0 0 auto;
  min-width: 108px;
  font-size: var(--fs-mini);
  letter-spacing: 0.12em;
  text-transform: none;
  color: var(--slate-soft);
}

.page-faq .faq-hero__fact dd {
  margin: 0;
  font-size: var(--fs-small);
  color: var(--paper);
}

.page-faq .faq-hero__fact dd.faq-mono {
  color: var(--cyan);
}

.page-faq .faq-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

/* ---------- 快速入口 ---------- */
.page-faq .faq-quick {
  margin-top: clamp(40px, 6vw, 72px);
}

.page-faq .faq-quick__title {
  font-size: var(--fs-h2);
  letter-spacing: -0.01em;
  margin: 0 0 20px;
}

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

.page-faq .faq-quick__card {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num name"
    "num desc";
  gap: 4px 14px;
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  background: var(--ink-800);
  color: var(--paper);
  text-decoration: none;
  min-height: 88px;
  transition: transform var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease), background-color var(--dur-1) var(--ease);
}

.page-faq .faq-quick__num {
  grid-area: num;
  align-self: start;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-quick__name {
  grid-area: name;
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .faq-quick__desc {
  grid-area: desc;
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--slate);
}

.page-faq .faq-quick__card:hover,
.page-faq .faq-quick__card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--cyan);
  background: var(--ink-700);
}

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

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  margin-top: clamp(40px, 6vw, 76px);
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-faq .faq-index {
  border-top: 2px solid var(--orange);
  padding-top: 14px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-size: var(--fs-mini);
  letter-spacing: 0.16em;
  color: var(--slate-soft);
  font-family: var(--font-mono);
}

.page-faq .faq-index__list {
  list-style: none;
  counter-reset: faqidx;
  margin: 0 0 16px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  color: var(--paper);
  text-decoration: none;
  font-size: var(--fs-small);
  transition: border-color var(--dur-1) var(--ease), color var(--dur-1) var(--ease), background-color var(--dur-1) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--ink-800);
}

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

.page-faq .faq-index__note {
  margin: 0;
  font-size: var(--fs-mini);
  line-height: 1.7;
  color: var(--slate-soft);
  max-width: 30ch;
}

.page-faq .faq-content {
  display: grid;
  gap: clamp(40px, 5vw, 64px);
  min-width: 0;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  min-width: 0;
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 4px 14px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__no {
  font-size: 0.95rem;
  color: var(--gold);
  letter-spacing: 0.08em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: var(--fs-h2);
  letter-spacing: -0.01em;
}

.page-faq .faq-group__lead {
  grid-column: 1 / -1;
  margin: 0;
  font-size: var(--fs-small);
  color: var(--slate);
  line-height: 1.7;
}

/* ---------- 暖纸问答卡 ---------- */
.page-faq .qa {
  background: var(--paper);
  color: var(--paper-ink);
  border: 1px solid var(--line-paper-strong);
  box-shadow: 4px 4px 0 0 rgba(207, 195, 172, 0.35);
  margin-bottom: 10px;
  transition: box-shadow var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}

.page-faq .qa:hover {
  border-color: var(--paper-ink);
}

.page-faq .qa[open] {
  box-shadow: 4px 4px 0 0 var(--orange);
}

.page-faq .qa__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  min-height: 56px;
  font-size: var(--fs-body);
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper-ink);
}

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

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

.page-faq .qa__no {
  flex: 0 0 auto;
  font-size: var(--fs-mini);
  color: var(--orange);
  padding-top: 2px;
}

.page-faq .qa__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-left: 4px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--orange);
  transition: transform var(--dur-1) var(--ease);
}

.page-faq .qa__mark::before {
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .qa__mark::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq .qa[open] .qa__mark::after {
  transform: translateX(-50%) scaleY(0);
}

.page-faq .qa__a {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line-paper);
  margin-top: 2px;
}

.page-faq .qa__a p {
  margin: 14px 0 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: #22282F;
  max-width: 68ch;
}

.page-faq .qa__a a {
  color: #0A6B63;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover {
  color: var(--orange);
}

/* ---------- 组内插图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 18px;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  font-size: var(--fs-mini);
  line-height: 1.7;
  color: var(--slate);
  border-top: 1px solid var(--line);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  scroll-margin-top: 96px;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--orange);
  background: linear-gradient(120deg, var(--ink-850), var(--ink-800));
  padding: clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-contact__title {
  margin: 12px 0 14px;
  font-size: var(--fs-h2);
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.page-faq .faq-contact__text {
  margin: 0 0 22px;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--slate);
  max-width: 60ch;
}

.page-faq .faq-contact__list {
  margin: 0 0 24px;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__row dt {
  flex: 0 0 auto;
  min-width: 88px;
  font-size: var(--fs-mini);
  letter-spacing: 0.1em;
  color: var(--slate-soft);
}

.page-faq .faq-contact__row dd {
  margin: 0;
  font-size: var(--fs-small);
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact__row dd.faq-mono {
  color: var(--cyan);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-contact__note {
  margin: 18px 0 0;
  font-size: var(--fs-mini);
  line-height: 1.7;
  color: var(--slate-soft);
}

.page-faq .faq-contact__note a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

  .page-faq .faq-quick__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-hero__fact {
    display: block;
  }

  .page-faq .faq-hero__fact dt {
    min-width: 0;
    margin-bottom: 6px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-quick__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(180px, 236px) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-faq .faq-index__link {
    width: 100%;
    border-color: transparent;
    border-left: 2px solid var(--line);
    padding: 10px 12px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--orange);
    border-top-color: transparent;
    border-right-color: transparent;
    border-bottom-color: transparent;
  }

  .page-faq .qa__q {
    padding: 18px 24px;
  }

  .page-faq .qa__a {
    padding: 0 24px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__card,
  .page-faq .qa,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .faq-quick__card:hover,
  .page-faq .faq-quick__card:focus-visible {
    transform: none;
  }
}