.page-faq {
  --faq-soft: rgba(245, 240, 230, 0.78);
  --faq-dim: rgba(245, 240, 230, 0.62);
  --faq-sticky: calc(var(--topbar-h) + 18px);
  display: block;
  padding-bottom: clamp(56px, 9vw, 110px);
  overflow-x: hidden;
  background:
    linear-gradient(180deg, rgba(13, 74, 64, 0.42) 0%, rgba(11, 43, 38, 0) 420px),
    var(--ink-800);
  color: var(--cream);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-masthead {
  position: relative;
  padding: clamp(26px, 5vw, 54px) 0 clamp(28px, 4.4vw, 46px);
  border-bottom: 1px solid var(--hair);
  background-image:
    linear-gradient(rgba(126, 156, 146, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 156, 146, 0.07) 1px, transparent 1px);
  background-size: 56px 56px, 56px 56px;
}

.page-faq .faq-masthead__title {
  margin: 14px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 56px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-faq .faq-masthead__intro {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 64ch;
  font-size: clamp(0.94rem, 1.6vw, 1.04rem);
  line-height: 1.9;
  color: var(--sage);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  margin-top: clamp(24px, 3.4vw, 36px);
  border: 1px solid var(--hair);
  background: var(--hair);
}

.page-faq .faq-stat {
  padding: 16px 18px 18px;
  background: var(--ink-900);
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 2.8vw, 1.95rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-faq .faq-stat__num--cyan { color: var(--cyan); }
.page-faq .faq-stat__num--amber { color: var(--amber); }
.page-faq .faq-stat__num--cream { color: var(--cream); }

.page-faq .faq-stat__key {
  display: block;
  margin-top: 8px;
  font-size: 0.76rem;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--sage);
}

/* ---------- 速查 ---------- */
.page-faq .faq-quick {
  padding: clamp(34px, 5vw, 62px) 0 0;
}

.page-faq .faq-quick__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--cream);
}

.page-faq .faq-quick__list {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-quick__link {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 14px;
  padding: 16px 18px;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--hair);
  border-left: 2px solid var(--amber);
  background: linear-gradient(120deg, rgba(15, 58, 51, 0.92), rgba(5, 32, 29, 0.92));
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.page-faq .faq-quick__link:hover,
.page-faq .faq-quick__link:focus-visible {
  border-color: var(--hair-cyan);
  border-left-color: var(--cyan);
  transform: translateY(-2px);
  background: linear-gradient(120deg, rgba(19, 68, 60, 0.95), rgba(5, 32, 29, 0.95));
  outline: none;
}

.page-faq .faq-quick__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .faq-quick__q {
  font-size: 0.96rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cream);
}

.page-faq .faq-quick__a {
  grid-column: 2;
  font-size: 0.81rem;
  line-height: 1.75;
  color: var(--sage);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
  padding-top: clamp(38px, 5.5vw, 64px);
}

.page-faq .faq-index {
  border: 1px solid var(--hair);
  background: rgba(5, 32, 29, 0.62);
  padding: 18px 18px 20px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  counter-reset: faqidx;
}

.page-faq .faq-index__item {
  counter-increment: faqidx;
  border-bottom: 1px dashed var(--hair);
}

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

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0;
  font-size: 0.9rem;
  line-height: 1.5;
  text-decoration: none;
  color: var(--faq-soft);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-faq .faq-index__link::before {
  content: counter(faqidx, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--sage);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cyan);
  padding-left: 5px;
  outline: none;
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--hair);
  font-size: 0.77rem;
  line-height: 1.8;
  color: var(--sage);
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

.page-faq .faq-block + .faq-block {
  margin-top: clamp(40px, 6vw, 72px);
  padding-top: clamp(32px, 5vw, 52px);
  border-top: 1px solid var(--hair);
}

.page-faq .faq-block__head {
  display: grid;
  gap: 10px;
  max-width: 66ch;
}

.page-faq .faq-block__no {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--amber);
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 500;
  line-height: 1.22;
  color: var(--cream);
}

.page-faq .faq-block__lead {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.85;
  color: var(--sage);
}

.page-faq .faq-block__lead a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 199, 0.4);
}

/* ---------- 插图 ---------- */
.page-faq .faq-visual {
  position: relative;
  margin: clamp(22px, 3vw, 30px) 0 0;
  border: 1px solid var(--hair);
  background: var(--ink-900);
}

.page-faq .faq-visual::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 1px;
  background: var(--cyan);
}

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

.page-faq .faq-visual__caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--hair);
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.06em;
  color: var(--sage);
  background: var(--ink-900);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-faq .qa {
  position: relative;
  border: 1px solid var(--hair);
  border-left: 2px solid rgba(126, 156, 146, 0.42);
  background: linear-gradient(180deg, rgba(15, 58, 51, 0.86), rgba(9, 38, 33, 0.86));
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-faq .qa::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  border-top: 1px solid var(--hair-cyan);
  border-right: 1px solid var(--hair-cyan);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.page-faq .qa:hover,
.page-faq .qa[open] {
  border-color: var(--hair-cyan);
  border-left-color: var(--cyan);
  background: linear-gradient(180deg, rgba(19, 68, 60, 0.9), rgba(9, 38, 33, 0.9));
}

.page-faq .qa:hover::after,
.page-faq .qa[open]::after {
  opacity: 1;
}

.page-faq .qa__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 20px;
  cursor: pointer;
  list-style: none;
  -webkit-tap-highlight-color: transparent;
}

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

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

.page-faq .qa__no {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.1em;
  color: var(--sage);
  transition: color 0.25s ease;
}

.page-faq .qa[open] .qa__no {
  color: var(--cyan);
}

.page-faq .qa__q {
  font-size: 0.97rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cream);
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 auto;
  align-self: center;
  margin-left: auto;
  width: 20px;
  height: 20px;
  border: 1px solid var(--hair-cyan);
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 4px;
  right: 4px;
  height: 1px;
  background: var(--cyan);
}

.page-faq .qa__mark::after {
  transform: rotate(90deg);
  transition: transform 0.25s ease;
}

.page-faq .qa[open] .qa__mark::after {
  transform: rotate(0deg);
}

.page-faq .qa__body {
  padding: 0 20px 18px;
  font-size: 0.895rem;
  line-height: 1.88;
  color: var(--faq-soft);
}

.page-faq .qa__body p {
  margin: 0 0 10px;
}

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

.page-faq .qa__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 199, 0.4);
}

/* ---------- 页尾延伸 ---------- */
.page-faq .faq-follow {
  margin-top: clamp(46px, 7vw, 84px);
  padding-top: clamp(32px, 5vw, 52px);
  border-top: 1px solid var(--hair);
}

.page-faq .faq-follow__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  font-weight: 500;
  line-height: 1.25;
  color: var(--cream);
}

.page-faq .faq-follow__text {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 0.91rem;
  line-height: 1.9;
  color: var(--sage);
}

.page-faq .faq-follow__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-follow__links .btn {
  text-decoration: none;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-quick__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
    align-self: start;
  }

  .page-faq .faq-visual {
    max-width: 760px;
  }

  .page-faq .faq-visual--wide {
    max-width: 100%;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-layout {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .qa__summary {
    padding: 19px 24px;
  }

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

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

  .page-faq .faq-quick__link:hover {
    transform: none;
  }
}
</final>