.page-faq {
  --faq-card: rgba(242, 245, 247, 0.045);
  --faq-card-strong: rgba(242, 245, 247, 0.075);
  --faq-jade-soft: rgba(0, 168, 107, 0.14);
  --faq-gold-soft: rgba(212, 175, 55, 0.14);
  --faq-body: rgba(242, 245, 247, 0.82);
  --faq-body-dim: rgba(242, 245, 247, 0.62);
  --faq-gap: clamp(1rem, 2.4vw, 1.4rem);
}

/* ---------- 页头 ---------- */
.page-faq .breadcrumb {
  padding-top: clamp(1.2rem, 4vw, 2rem);
}

.page-faq .page-head {
  position: relative;
  padding-block: clamp(1.8rem, 5vw, 3.2rem) clamp(1.6rem, 4vw, 2.6rem);
}

.page-faq .page-head::after {
  content: "";
  display: block;
  width: min(320px, 60%);
  height: 1px;
  margin-top: clamp(1.4rem, 4vw, 2.2rem);
  background: linear-gradient(90deg, var(--jade), var(--gold) 55%, transparent);
}

.page-faq .page-head .eyebrow {
  color: var(--gold);
  letter-spacing: 0.2em;
  font-size: 0.7rem;
  text-transform: uppercase;
}

.page-faq .page-head h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 6.4vw, 3.3rem);
  line-height: 1.2;
  letter-spacing: -0.012em;
  margin: 0.7rem 0 1rem;
  max-width: 22ch;
  background: linear-gradient(104deg, var(--cloud) 38%, var(--cyan) 82%, var(--jade) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .page-head .lede {
  max-width: 54ch;
  color: var(--faq-body);
  line-height: 1.8;
  font-size: 0.98rem;
}

.page-faq .head-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

/* ---------- 通用区块头 ---------- */
.page-faq .section-head {
  max-width: 62ch;
}

.page-faq .section-head .eyebrow {
  color: var(--cyan);
  letter-spacing: 0.18em;
  font-size: 0.68rem;
  text-transform: uppercase;
}

.page-faq .section-head .section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 4.6vw, 2.1rem);
  line-height: 1.3;
  margin: 0.5rem 0 0.8rem;
  color: var(--cloud);
}

.page-faq .section-head .lede {
  color: var(--faq-body-dim);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-faq .section-head--heavy .section-title {
  background: linear-gradient(100deg, var(--cloud) 40%, var(--jade) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 全景四步流程 ---------- */
.page-faq .flow-wrap {
  position: relative;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-faq .flow__line {
  display: none;
}

.page-faq .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}

.page-faq .flow__node {
  position: relative;
  padding: 1.3rem 1.2rem 1.4rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: var(--faq-card);
  overflow: hidden;
}

.page-faq .flow__node::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(158deg, var(--faq-jade-soft), transparent 58%);
  pointer-events: none;
}

.page-faq .flow__node > * {
  position: relative;
}

.page-faq .flow__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  color: var(--gold);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  margin-bottom: 0.85rem;
}

.page-faq .flow__title {
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--cloud);
  margin: 0 0 0.5rem;
}

.page-faq .flow__node p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--faq-body-dim);
}

.page-faq .overview-figure {
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

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

/* ---------- 第二步：横向翻页器 ---------- */
.page-faq .step-rail {
  display: flex;
  gap: 1rem;
  margin-top: clamp(1.6rem, 4vw, 2.2rem);
  padding-bottom: 1rem;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: 1rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--jade) transparent;
}

.page-faq .step-rail::-webkit-scrollbar {
  height: 5px;
}

.page-faq .step-rail::-webkit-scrollbar-track {
  background: var(--line-soft);
  border-radius: var(--pill);
}

.page-faq .step-rail::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, var(--jade), var(--gold));
  border-radius: var(--pill);
}

.page-faq .step-slide {
  flex: 0 0 84%;
  scroll-snap-align: center;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.page-faq .step-slide .media-frame {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.page-faq .step-slide__cap {
  padding: 0 0.2rem;
}

.page-faq .step-slide__cap p {
  margin: 0.4rem 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--faq-body);
}

.page-faq .step-slide__num {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  padding: 0.24rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--pill);
}

.page-faq .step-slide__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.7rem;
  padding: 1.5rem 1.3rem;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-soft);
  background:
    radial-gradient(120% 100% at 100% 0%, var(--faq-jade-soft), transparent 62%),
    var(--faq-card);
  overflow: hidden;
}

.page-faq .step-slide__panel h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.45;
  color: var(--cloud);
}

.page-faq .step-slide__panel p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--faq-body-dim);
}

/* ---------- 其余三步 ---------- */
.page-faq .rest-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: clamp(1.6rem, 4vw, 2.2rem);
}

.page-faq .rest-item {
  position: relative;
  padding: 1.3rem 1.2rem 1.4rem 1.5rem;
  border-radius: var(--r-md);
  background: linear-gradient(180deg, var(--faq-card-strong), rgba(242, 245, 247, 0.015));
  border: 1px solid var(--line-soft);
}

.page-faq .rest-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05rem;
  bottom: 1.05rem;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--jade), rgba(0, 168, 107, 0));
}

.page-faq .rest-item__num {
  display: inline-block;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 0.6rem;
}

.page-faq .rest-item h3 {
  margin: 0 0 0.6rem;
  font-size: 1.04rem;
  line-height: 1.5;
  color: var(--cloud);
}

.page-faq .rest-item p {
  margin: 0 0 0.7rem;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--faq-body);
}

.page-faq .rest-item__note {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.72;
  color: var(--faq-body-dim);
  padding-left: 0.8rem;
  border-left: 1px solid var(--faq-gold-soft);
}

/* ---------- 常见问题折叠面板 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 0.7rem;
  margin-top: clamp(1.5rem, 3.6vw, 2rem);
}

.page-faq .faq-item {
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: var(--faq-card);
  overflow: hidden;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(0, 168, 107, 0.42);
  background: rgba(0, 168, 107, 0.07);
}

.page-faq .faq-item summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 1.05rem 3.2rem 1.05rem 1.15rem;
  font-size: 1rem;
  line-height: 1.62;
  font-weight: 600;
  color: var(--cloud);
}

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

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 1.15rem;
  top: 50%;
  width: 12px;
  height: 12px;
  margin-top: -6px;
  background:
    linear-gradient(var(--gold), var(--gold)) center / 12px 2px no-repeat,
    linear-gradient(var(--gold), var(--gold)) center / 2px 12px no-repeat;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(135deg);
  background:
    linear-gradient(var(--jade), var(--jade)) center / 12px 2px no-repeat,
    linear-gradient(var(--jade), var(--jade)) center / 2px 12px no-repeat;
}

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

.page-faq .faq-item p {
  margin: 0;
  padding: 0 1.15rem 1.2rem;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--faq-body);
  animation: faqReveal 0.28s var(--ease) both;
}

@keyframes faqReveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 设备与浏览器适配 ---------- */
.page-faq .adapt-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
  margin-top: clamp(1.5rem, 3.6vw, 2rem);
}

.page-faq .adapt-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-soft);
  background: var(--faq-card);
}

.page-faq .adapt-row__key {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .adapt-row__val {
  font-size: 0.91rem;
  line-height: 1.75;
  color: var(--faq-body);
}

/* ---------- 兜底 ---------- */
.page-faq .fallback-card {
  position: relative;
  margin-top: clamp(1.5rem, 3.6vw, 2rem);
  padding: clamp(1.3rem, 4vw, 2.2rem);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(0, 168, 107, 0.16), transparent 60%),
    radial-gradient(120% 140% at 0% 100%, rgba(212, 175, 55, 0.13), transparent 62%),
    rgba(5, 16, 31, 0.55);
  overflow: hidden;
}

.page-faq .fallback-paths {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.page-faq .fallback-path {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.05rem 1.1rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: rgba(5, 16, 31, 0.42);
  text-decoration: none;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .fallback-path:hover,
.page-faq .fallback-path:focus-visible {
  border-color: rgba(0, 168, 107, 0.55);
  background: rgba(0, 168, 107, 0.09);
  transform: translateY(-2px);
}

.page-faq .fallback-path__num {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .fallback-path__title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.45;
  color: var(--cloud);
}

.page-faq .fallback-path__text {
  font-size: 0.87rem;
  line-height: 1.75;
  color: var(--faq-body-dim);
}

.page-faq .fallback-note {
  margin: 1.3rem 0 0;
  font-size: 0.87rem;
  line-height: 1.8;
  color: var(--faq-body-dim);
  padding-top: 1.1rem;
  border-top: 1px solid var(--line-soft);
}

.page-faq .fallback-note a {
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 168, 107, 0.4);
}

.page-faq .fallback-note a:hover,
.page-faq .fallback-note a:focus-visible {
  color: var(--cyan);
  border-bottom-color: rgba(63, 224, 200, 0.6);
}

/* ---------- 平板 ---------- */
@media (min-width: 680px) {
  .page-faq .adapt-list {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .adapt-row {
    grid-template-columns: 1fr;
  }

  .page-faq .fallback-paths {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .step-slide {
    flex: 0 0 min(58%, 380px);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .page-head {
    padding-block: clamp(2.6rem, 5vw, 4.2rem) clamp(2rem, 4vw, 3rem);
  }

  .page-faq .flow {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.3rem;
  }

  .page-faq .flow__line {
    display: block;
    position: absolute;
    top: -1.5rem;
    left: 0;
    width: 100%;
    height: 2.4rem;
    opacity: 0.62;
    pointer-events: none;
  }

  .page-faq .rest-grid {
    grid-template-columns: 1.28fr 1fr 1fr;
    align-items: start;
  }

  .page-faq .step-slide {
    flex: 0 0 min(34%, 360px);
  }

  .page-faq .step-slide__panel {
    aspect-ratio: 3 / 4;
  }

  .page-faq .adapt-list {
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem 1rem;
  }

  .page-faq .faq-list {
    max-width: 880px;
  }
}

@media (min-width: 1120px) {
  .page-faq .step-slide {
    flex: 0 0 320px;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item p {
    animation: none;
  }

  .page-faq .fallback-path {
    transition: none;
  }

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

  .page-faq .step-rail {
    scroll-behavior: auto;
  }
}