.page-faq {
  --faq-rule: var(--line);
  --faq-head-col: 108px;
  --faq-gap: 32px;
  display: block;
  background: var(--paper);
  color: var(--text-ink);
  font-family: var(--font-sans);
}

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

.page-faq .breadcrumbs {
  padding: 20px 0 4px;
  font-size: 13px;
  color: var(--ink-700);
}

.page-faq .breadcrumbs a {
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--teal);
  border-bottom-color: var(--teal);
  outline: none;
}

/* ---------- 首屏导览 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 28px 0 56px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -14%;
  width: 62%;
  height: 132%;
  background: linear-gradient(135deg, var(--teal-soft) 0%, var(--teal) 100%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.24;
  z-index: 0;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
  align-items: center;
}

.page-faq .faq-hero__copy .eyebrow {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(28px, 5.6vw, 46px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-700);
}

.page-faq .faq-hero__figure {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 2px;
  box-shadow: var(--shadow-lift);
}

/* ---------- 分组圆点索引 ---------- */
.page-faq .faq-dots {
  position: relative;
  background: var(--mist);
  border-top: 2px solid var(--ink-900);
  padding: 14px 0;
}

.page-faq .faq-dots::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 24%;
  height: 100%;
  background: var(--teal);
  opacity: 0.55;
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-dots__inner {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-dot {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--ink-700);
  background: var(--paper);
  border-radius: 2px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-900);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-dot:hover,
.page-faq .faq-dot:focus-visible {
  background: var(--teal-soft);
  border-color: var(--teal);
  transform: translateY(-2px);
  outline: none;
}

.page-faq .faq-dot:focus-visible {
  box-shadow: 0 0 0 2px var(--teal);
}

.page-faq .faq-dot__num {
  font-size: 12px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.04em;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  position: relative;
  padding: 48px 0 8px;
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal) 0%, var(--teal) 16%, var(--line) 16%, var(--line) 100%);
}

.page-faq .faq-group:last-of-type {
  padding-bottom: 64px;
}

.page-faq .faq-group__head {
  margin-bottom: 20px;
}

.page-faq .faq-group__num {
  display: block;
  font-size: 44px;
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--teal);
  margin-bottom: 10px;
}

.page-faq .faq-group__title {
  margin: 0 0 8px;
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--ink-900);
}

.page-faq .faq-group__note {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-faq .faq-group__figure {
  margin: 0 0 28px;
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 2px;
  border: 1px solid var(--mist);
  box-shadow: var(--shadow-lift);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--faq-rule);
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-item:last-child {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(143, 227, 214, 0.16) 0%, rgba(143, 227, 214, 0) 68%);
}

.page-faq .faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 20px 52px 20px 16px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink-900);
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

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

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

.page-faq .faq-item summary:hover {
  color: var(--ink-700);
  padding-left: 20px;
}

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

.page-faq .faq-item summary::before,
.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  top: 50%;
  background: var(--ink-700);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item summary::before {
  right: 16px;
  width: 14px;
  height: 2px;
  margin-top: -1px;
}

.page-faq .faq-item summary::after {
  right: 22px;
  width: 2px;
  height: 14px;
  margin-top: -7px;
}

.page-faq .faq-item[open] summary::before {
  background: var(--orange-deep);
}

.page-faq .faq-item[open] summary::after {
  transform: scaleY(0);
  background: var(--orange-deep);
}

.page-faq .faq-item__body {
  padding: 0 16px 26px;
  animation: faq-reveal var(--dur) var(--ease) both;
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-item__a {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-700);
}

.page-faq .faq-mark {
  background: var(--teal-soft);
  color: var(--ink-900);
  font-weight: inherit;
  padding: 0 3px;
  border-radius: 2px;
}

.page-faq .faq-tip {
  display: block;
  margin-top: 14px;
  padding: 12px 14px;
  border-left: 3px solid var(--teal);
  background: var(--mist);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-faq .faq-tip__label {
  display: inline-block;
  margin-right: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange-deep);
}

/* ---------- 尾部咨询 ---------- */
.page-faq .faq-close {
  position: relative;
  overflow: hidden;
  background: var(--ink-900);
  color: var(--paper);
  padding: 56px 0 60px;
}

.page-faq .faq-close::before {
  content: "";
  position: absolute;
  top: -40%;
  left: -10%;
  width: 46%;
  height: 180%;
  background: var(--ink-700);
  clip-path: polygon(0 0, 62% 0, 0 100%, 0 100%);
  opacity: 0.85;
  pointer-events: none;
}

.page-faq .faq-close__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}

.page-faq .faq-close__eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal-soft);
}

.page-faq .faq-close__title {
  margin: 0 0 12px;
  font-size: clamp(22px, 3.6vw, 30px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-close__text {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-faq .faq-close__ghost {
  border-color: var(--teal);
  color: var(--teal);
}

.page-faq .faq-close__ghost:hover,
.page-faq .faq-close__ghost:focus-visible {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--ink-900);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-item__body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 216px);
    column-gap: 36px;
    align-items: start;
    padding: 0 16px 30px;
  }

  .page-faq .faq-tip {
    margin-top: 0;
  }

  .page-faq .faq-close__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    column-gap: 48px;
  }

  .page-faq .faq-close__actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 40px 0 72px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 56px;
  }

  .page-faq .faq-group {
    padding: 60px 0 12px;
  }

  .page-faq .faq-group:last-of-type {
    padding-bottom: 80px;
  }

  .page-faq .faq-group__head {
    display: grid;
    grid-template-columns: var(--faq-head-col) minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 32px;
    margin-bottom: 26px;
  }

  .page-faq .faq-group__num {
    grid-column: 1;
    grid-row: 1 / span 2;
    font-size: 60px;
    margin-bottom: 0;
  }

  .page-faq .faq-group__title {
    grid-column: 2;
    grid-row: 1;
    margin-bottom: 10px;
  }

  .page-faq .faq-group__note {
    grid-column: 2;
    grid-row: 2;
  }

  .page-faq .faq-group__figure {
    margin: 0 0 32px calc(var(--faq-head-col) + 32px);
  }

  .page-faq .faq-group__list {
    padding-left: calc(var(--faq-head-col) + 32px);
  }

  .page-faq .faq-item summary {
    padding: 22px 56px 22px 0;
    font-size: 17px;
  }

  .page-faq .faq-item summary:hover {
    padding-left: 0;
  }

  .page-faq .faq-item__body {
    padding: 0 0 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}