.page-faq {
  --faq-gutter: clamp(24px, 4vw, 56px);
  --faq-sticky-top: calc(var(--header-h) + 28px);
  --faq-soft-green: rgba(14, 122, 60, .05);
  background: var(--cream);
  color: var(--ink);
}

/* ============ 首屏 ============ */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 4vw, 44px) 0 clamp(40px, 6vw, 78px);
  background:
    radial-gradient(90% 70% at 100% 0%, rgba(14, 122, 60, .13), transparent 62%),
    radial-gradient(70% 60% at 0% 100%, rgba(255, 107, 26, .10), transparent 60%),
    var(--cream);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(19, 50, 79, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(19, 50, 79, .07) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(78% 62% at 74% 38%, #000 0%, transparent 74%);
  mask-image: radial-gradient(78% 62% at 74% 38%, #000 0%, transparent 74%);
  pointer-events: none;
}

.page-faq .faq-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 34px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(1.95rem, 5.2vw, 3.5rem);
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: -0.012em;
  max-width: 12em;
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: #443528;
}

.page-faq .faq-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.page-faq .faq-hero__visual {
  position: relative;
}

.page-faq .faq-hero__visual::after {
  content: "";
  position: absolute;
  right: -14px;
  bottom: -14px;
  width: 96px;
  height: 96px;
  border-right: 3px solid var(--orange);
  border-bottom: 3px solid var(--orange);
  border-radius: 0 0 var(--radius) 0;
  pointer-events: none;
}

.page-faq .faq-hero__visual .media-frame {
  position: relative;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 22px 52px -30px rgba(8, 59, 32, .6);
}

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

/* ============ 主体双栏 ============ */

.page-faq .faq-body {
  background: var(--paper);
  padding: clamp(44px, 7vw, 92px) 0 clamp(56px, 8vw, 108px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: start;
}

@media (min-width: 980px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(196px, 3fr) minmax(0, 9fr);
    gap: var(--faq-gutter);
  }
}

/* ---- 左侧分类索引 ---- */

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--navy);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

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

.page-faq .faq-index__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 10px 11px 13px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  border-left: 2px solid var(--line);
  transition: background 170ms var(--ease), border-color 170ms var(--ease),
    color 170ms var(--ease), transform 170ms var(--ease);
}

.page-faq .faq-index__link::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 10px;
  bottom: 5px;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 190ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--cream);
  border-left-color: var(--orange);
  color: var(--green);
  transform: translateX(3px);
}

.page-faq .faq-index__link:hover::after,
.page-faq .faq-index__link:focus-visible::after {
  transform: scaleX(1);
}

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

.page-faq .faq-index__num {
  flex: none;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--orange);
}

@media (min-width: 980px) {
  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
    align-self: start;
  }
}

/* ---- 右侧问答列表 ---- */

.page-faq .faq-panels {
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 5.5vw, 74px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 32px);
}

.page-faq .faq-group__head {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--green);
  margin-bottom: 2px;
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 74px;
  height: 2px;
  background: var(--orange);
}

.page-faq .faq-group__num {
  flex: none;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--navy);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  font-weight: 800;
  letter-spacing: .01em;
}

/* ---- 单条问答 ---- */

.page-faq .faq-q {
  border-bottom: 1px solid var(--line);
  transition: background 170ms var(--ease);
}

.page-faq .faq-q:hover {
  background: var(--faq-soft-green);
}

.page-faq .faq-q[open] {
  background: var(--cream);
}

.page-faq .faq-q__summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 17px 16px;
  border-left: 3px solid transparent;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  transition: border-color 170ms var(--ease), color 170ms var(--ease);
}

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

.page-faq .faq-q[open] .faq-q__summary {
  border-left-color: var(--orange);
}

.page-faq .faq-q__summary:hover {
  color: var(--green);
}

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

.page-faq .faq-q__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--green);
  padding-top: 3px;
}

.page-faq .faq-q__text {
  min-width: 0;
}

.page-faq .faq-q__icon {
  align-self: center;
  flex: none;
  width: 22px;
  height: 22px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
  font-size: 13px;
  line-height: 1;
  color: var(--green);
  transition: transform 190ms var(--ease), border-color 190ms var(--ease),
    color 190ms var(--ease);
}

.page-faq .faq-q[open] .faq-q__icon {
  transform: rotate(45deg);
  border-color: var(--orange);
  color: var(--orange);
}

.page-faq .faq-q__body {
  padding: 0 20px 20px 52px;
  font-size: 15.5px;
  line-height: 1.85;
  color: #3d3126;
}

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

/* ---- 节奏信息图 ---- */

.page-faq .faq-figure {
  margin: 24px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
}

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

.page-faq .faq-figure .media-frame__caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--navy);
  border-top: 1px solid var(--line);
  background: var(--cream);
}

/* ---- 联系区块 ---- */

.page-faq .faq-cta {
  position: relative;
  margin-top: 20px;
  padding: clamp(22px, 3.6vw, 36px);
  border-radius: var(--radius);
  background: var(--green-deep);
  color: var(--cream);
  overflow: hidden;
}

.page-faq .faq-cta::before {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 26, .34), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-cta::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--orange);
  pointer-events: none;
}

.page-faq .faq-cta__text {
  position: relative;
  margin: 0 0 20px;
  max-width: 54ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(251, 246, 236, .88);
}

.page-faq .faq-cta__actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .btn {
  transition: background 170ms var(--ease), color 170ms var(--ease),
    border-color 170ms var(--ease), transform 170ms var(--ease);
}

.page-faq .btn:hover {
  transform: translateY(-2px);
}

.page-faq .faq-cta .btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.page-faq .faq-cta .btn--primary:hover,
.page-faq .faq-cta .btn--primary:focus-visible {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--ink);
}

.page-faq .faq-cta .btn--ghost {
  color: var(--cream);
  border-color: rgba(251, 246, 236, .42);
}

.page-faq .faq-cta .btn--ghost:hover,
.page-faq .faq-cta .btn--ghost:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

/* ============ 窄屏 ============ */

@media (max-width: 979px) {
  .page-faq .faq-index__title {
    margin-bottom: 10px;
  }

  .page-faq .faq-index__list {
    flex-direction: row;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

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

  .page-faq .faq-index__item {
    flex: 0 0 auto;
  }

  .page-faq .faq-index__link {
    border-left: none;
    border-bottom: 2px solid var(--line);
    padding: 9px 13px;
    white-space: nowrap;
  }

  .page-faq .faq-index__link::after {
    display: none;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    transform: none;
    border-bottom-color: var(--orange);
  }
}

@media (max-width: 560px) {
  .page-faq .faq-q__summary {
    padding: 15px 12px;
    gap: 10px;
    font-size: 15px;
  }

  .page-faq .faq-q__body {
    padding: 0 14px 18px 38px;
    font-size: 15px;
  }

  .page-faq .faq-hero__visual::after {
    right: -8px;
    bottom: -8px;
    width: 64px;
    height: 64px;
  }

  .page-faq .faq-cta__actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}