.page-faq {
  --faq-radius: 0px;
  --faq-item-bg: var(--deep-2);
  --faq-hair: var(--line);
  background: var(--deep);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 5vw, 62px) 0 clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--faq-hair);
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: .35;
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -18%;
  right: -8%;
  width: min(560px, 62vw);
  height: 120%;
  background: linear-gradient(160deg, rgba(53, 224, 200, .16), rgba(255, 107, 74, .08) 58%, transparent 80%);
  clip-path: polygon(38% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}
.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}
.page-faq .faq-hero-copy .breadcrumb {
  margin-bottom: 18px;
}
.page-faq .faq-hero-copy .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--slate);
}
.page-faq .faq-hero-copy .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--grid);
}
.page-faq .faq-hero-copy .breadcrumb a {
  color: var(--slate);
  text-decoration: none;
}
.page-faq .faq-hero-copy .breadcrumb a:hover {
  color: var(--cyan);
}
.page-faq .faq-hero h1 {
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: #FFFFFF;
  max-width: 16ch;
}
.page-faq .faq-hero .lead {
  margin: 0 0 26px;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: #C6D2E4;
}
.page-faq .faq-hero-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-faq .faq-hero-jump .btn {
  text-decoration: none;
  border-radius: var(--faq-radius);
}
.page-faq .faq-hero-media {
  margin: 0;
  position: relative;
  border: 1px solid var(--faq-hair);
  background: linear-gradient(150deg, rgba(18, 41, 74, .9), rgba(10, 24, 48, .9));
}
.page-faq .faq-hero-media::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 14px;
  height: 14px;
  background: var(--cyan);
  z-index: 2;
}
.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: .92;
}
.page-faq .faq-hero-media figcaption {
  padding: 10px 14px;
  font-size: 12px;
  color: var(--slate);
  border-top: 1px solid var(--faq-hair);
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-body {
  padding: clamp(34px, 5vw, 72px) 0 clamp(48px, 7vw, 96px);
}
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}
.page-faq .faq-index {
  border: 1px solid var(--faq-hair);
  border-top: 2px solid var(--cyan);
  background: rgba(18, 41, 74, .45);
  padding: 18px 18px 20px;
}
.page-faq .faq-index-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-faq .faq-index-list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-faq .faq-index-list li {
  flex: 0 0 auto;
}
.page-faq .faq-index-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--faq-hair);
  color: #D6E0EE;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease;
}
.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--deep);
}
.page-faq .faq-index-no {
  font-size: 11px;
  color: var(--coral);
}
.page-faq .faq-index-list a:hover .faq-index-no {
  color: var(--deep);
}
.page-faq .faq-index-tip {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-answers {
  min-width: 0;
}
.page-faq .faq-group {
  margin-bottom: clamp(36px, 5vw, 64px);
  padding-top: 20px;
  border-top: 1px solid var(--faq-hair);
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.page-faq .faq-group:first-child {
  border-top: 2px solid var(--cyan);
  padding-top: 24px;
}
.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}
.page-faq .faq-group-idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  font-size: 13px;
  font-weight: 700;
  color: var(--deep);
  background: var(--cyan);
}
.page-faq .faq-group-head h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: #FFFFFF;
}
.page-faq .faq-group-head p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--faq-hair);
  background: var(--faq-item-bg);
  margin-bottom: 10px;
}
.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  transition: background-color .18s ease;
}
.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item > summary:hover {
  background: rgba(53, 224, 200, .07);
}
.page-faq .faq-item > summary h3 {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.5;
  color: #EAF1FA;
}
.page-faq .faq-item > summary::after {
  content: "+";
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--cyan);
  border: 1px solid var(--cyan-dim);
}
.page-faq .faq-item[open] {
  border-color: rgba(53, 224, 200, .55);
}
.page-faq .faq-item[open] > summary {
  background: rgba(53, 224, 200, .05);
  border-bottom: 1px solid var(--faq-hair);
}
.page-faq .faq-item[open] > summary::after {
  content: "–";
  background: var(--coral);
  border-color: var(--coral);
  color: #1C1511;
}
.page-faq .faq-answer {
  padding: 16px 18px 20px;
}
.page-faq .faq-answer p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: #CED9E8;
}
.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-answer a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
}
.page-faq .faq-answer a:hover {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  counter-reset: faq-step;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-steps li {
  counter-increment: faq-step;
  position: relative;
  padding: 0 0 12px 46px;
  font-size: 15px;
  line-height: 1.8;
  color: #CED9E8;
}
.page-faq .faq-steps li:last-child {
  padding-bottom: 0;
}
.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  width: 32px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--deep);
  background: var(--cyan);
  text-align: center;
  padding: 2px 0;
}
.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 15px;
  top: 26px;
  bottom: 2px;
  width: 1px;
  background: var(--line);
}
.page-faq .faq-steps li:last-child::after {
  display: none;
}

/* ---------- 收藏位图文分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}
.page-faq .faq-split-main {
  min-width: 0;
}
.page-faq .faq-split-media {
  margin: 0;
  border: 1px solid var(--faq-hair);
  background: linear-gradient(180deg, rgba(18, 41, 74, .95), rgba(10, 24, 48, .95));
  position: relative;
}
.page-faq .faq-split-media::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 14px;
  height: 14px;
  background: var(--coral);
  z-index: 2;
}
.page-faq .faq-split-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  opacity: .9;
}
.page-faq .faq-split-media figcaption {
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate);
  border-top: 1px solid var(--faq-hair);
}

/* ---------- 同步条目：两列错落 ---------- */
.page-faq .faq-sync-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

/* ---------- 数据带 ---------- */
.page-faq .faq-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 18px;
}
.page-faq .faq-band-item {
  background: var(--deep);
  padding: 16px 18px;
}
.page-faq .faq-band-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -.02em;
}
.page-faq .faq-band-item:nth-child(2n) .faq-band-num {
  color: var(--signal);
}
.page-faq .faq-band-label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate);
}

/* ---------- 自查清单 ---------- */
.page-faq .faq-check {
  counter-reset: faq-check;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-faq .faq-check li {
  counter-increment: faq-check;
  background: var(--deep-2);
  padding: 16px 18px 16px 60px;
  position: relative;
}
.page-faq .faq-check li::before {
  content: counter(faq-check, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 17px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--coral);
}
.page-faq .faq-check h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: #EAF1FA;
}
.page-faq .faq-check p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 22px;
  border: 1px solid rgba(255, 107, 74, .5);
  background: linear-gradient(120deg, rgba(255, 107, 74, .12), rgba(18, 41, 74, .85) 62%);
}
.page-faq .faq-cta h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.4vw, 24px);
  color: #FFFFFF;
}
.page-faq .faq-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #C6D2E4;
}
.page-faq .faq-cta .btn {
  justify-self: start;
  text-decoration: none;
  border-radius: var(--faq-radius);
}
.page-faq .faq-footnote {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}
.page-faq .faq-footnote a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
}
.page-faq .faq-footnote a:hover {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .faq-sync-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-check {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 26px 28px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: clamp(32px, 4vw, 64px);
  }
  .page-faq .faq-layout {
    grid-template-columns: 252px minmax(0, 1fr);
  }
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
  }
  .page-faq .faq-index-list li + li {
    border-top: 1px solid var(--faq-hair);
  }
  .page-faq .faq-index-list a {
    border: 0;
    padding: 11px 8px;
  }
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 24px;
    align-items: start;
  }
  .page-faq .faq-split-media {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-list a,
  .page-faq .faq-item > summary {
    transition: none;
  }
}