.page-faq {
  position: relative;
  background: var(--gg-deep);
  color: var(--gg-ice);
  font-family: var(--gg-font-body);
  overflow-x: clip;
}

.page-faq::before {
  content: "";
  display: block;
  height: var(--gg-bw);
  background: linear-gradient(90deg, var(--gg-cyan), var(--gg-cyan-soft) 44%, var(--gg-coral));
}

.page-faq .faq-band {
  padding-block: clamp(42px, 6vw, 84px);
}

.page-faq .faq-band--ice {
  background: var(--gg-ice);
  color: var(--gg-ink);
}

.page-faq .faq-band--ice .gg-index {
  color: var(--gg-deep);
}

.page-faq .faq-band--ice .gg-index__num {
  color: var(--gg-coral);
}

.page-faq .faq-head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-faq .faq-head .gg-title {
  margin-top: 6px;
}

.page-faq .faq-note {
  margin-top: 10px;
  color: var(--gg-graphite);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-faq .faq-band--ice .faq-note {
  color: #46586b;
}

.page-faq .faq-title {
  font-family: var(--gg-font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 8px 0 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
  margin-top: 22px;
}

.page-faq .faq-hero__title {
  max-width: 20ch;
  margin: 10px 0 0;
}

.page-faq .faq-hero__lead .gg-lede {
  margin-top: 18px;
  max-width: 58ch;
  color: var(--gg-ice);
  opacity: 0.88;
}

.page-faq .faq-hero__aside {
  border: var(--gg-bw) solid var(--gg-line);
  border-radius: var(--gg-radius);
  background: linear-gradient(155deg, rgba(0, 229, 255, 0.14), rgba(255, 107, 74, 0.09) 62%, transparent);
  padding: 20px 20px 14px;
  box-shadow: var(--gg-shadow);
}

.page-faq .faq-quick {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .faq-quick a {
  display: block;
  padding: 11px 2px;
  color: var(--gg-ice);
  text-decoration: none;
  font-size: 0.95rem;
  line-height: 1.5;
  border-bottom: 1px dashed var(--gg-line-soft);
  transition: color 0.18s ease, padding-left 0.18s ease;
}

.page-faq .faq-quick li:last-child a {
  border-bottom: 0;
}

.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  color: var(--gg-cyan);
  padding-left: 6px;
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 26px 0 0;
  display: grid;
  gap: 26px;
}

.page-faq .faq-step {
  position: relative;
  border: var(--gg-bw) solid var(--gg-line);
  border-top: 6px solid var(--gg-cyan);
  border-radius: var(--gg-radius);
  background: var(--gg-mid);
  padding: 30px 20px 22px;
  box-shadow: var(--gg-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--gg-shadow-hover);
}

.page-faq .faq-step__dot {
  position: absolute;
  top: -22px;
  left: 20px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--gg-cyan);
  color: var(--gg-abyss);
  border: 2px solid var(--gg-abyss);
  font-family: var(--gg-font-mono);
  font-weight: 600;
  font-size: 1.05rem;
}

.page-faq .faq-step__title {
  font-family: var(--gg-font-display);
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 0 0 10px;
  color: var(--gg-white);
}

.page-faq .faq-step p {
  margin: 0;
  color: var(--gg-graphite);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-faq .faq-step__link {
  margin-top: 12px;
}

.page-faq .faq-step__link a {
  color: var(--gg-cyan-soft);
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid var(--gg-line-strong);
  padding-bottom: 2px;
}

.page-faq .faq-step__link a:hover {
  color: var(--gg-coral-soft);
  border-bottom-color: var(--gg-coral);
}

.page-faq .faq-figure {
  margin: clamp(30px, 4vw, 48px) 0 0;
  border: var(--gg-bw) solid var(--gg-line);
  border-radius: var(--gg-radius);
  background: var(--gg-abyss);
  padding: 10px;
  box-shadow: var(--gg-shadow);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 2px;
  object-fit: cover;
}

.page-faq .faq-figure__cap {
  margin-top: 10px;
  font-family: var(--gg-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gg-graphite);
  text-align: center;
}

.page-faq .faq-figure--square {
  margin-top: 22px;
}

/* ---------- 分类索引条 ---------- */
.page-faq .faq-jump-band {
  padding-block: clamp(26px, 3.2vw, 40px);
  background: var(--gg-abyss);
  border-top: var(--gg-bw) solid var(--gg-line-soft);
  border-bottom: var(--gg-bw) solid var(--gg-line-soft);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: var(--gg-bw) solid var(--gg-line);
  border-radius: var(--gg-radius);
  color: var(--gg-ice);
  text-decoration: none;
  font-size: 0.92rem;
  line-height: 1.4;
  transition: border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a.is-active {
  border-color: var(--gg-cyan);
  color: var(--gg-cyan);
  transform: translateX(2px);
}

.page-faq .faq-jump__n {
  font-family: var(--gg-font-mono);
  font-size: 0.78rem;
  color: var(--gg-coral-soft);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group__grid {
  display: grid;
  gap: clamp(24px, 3vw, 42px);
  align-items: start;
}

.page-faq .faq-group__aside .gg-title {
  margin-top: 8px;
}

.page-faq .faq-group__aside {
  border-left: 6px solid var(--gg-cyan);
  padding-left: 18px;
}

.page-faq .faq-band--ice .faq-group__aside {
  border-left-color: var(--gg-coral);
}

.page-faq .faq-group__items {
  display: grid;
  gap: 14px;
}

.page-faq .faq-item {
  border: var(--gg-bw) solid var(--gg-line);
  border-left: 6px solid var(--gg-cyan);
  border-radius: var(--gg-radius);
  background: var(--gg-mid);
  box-shadow: var(--gg-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-item:hover {
  transform: translateX(2px);
  box-shadow: var(--gg-shadow-hover);
}

.page-faq .faq-item[open] {
  border-left-color: var(--gg-coral);
}

.page-faq .faq-item > summary {
  cursor: pointer;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  color: var(--gg-white);
  transition: color 0.18s ease;
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  font-family: var(--gg-font-mono);
  font-size: 1.25rem;
  line-height: 1.1;
  color: var(--gg-cyan);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
  color: var(--gg-coral);
}

.page-faq .faq-item > summary:hover {
  color: var(--gg-cyan);
}

.page-faq .faq-item__q {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
}

.page-faq .faq-item__num {
  display: inline-block;
  min-width: 2.4em;
  margin-right: 8px;
  font-family: var(--gg-font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--gg-cyan);
  vertical-align: 1px;
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--gg-coral);
}

.page-faq .faq-item__a {
  padding: 0 18px 18px 18px;
  color: var(--gg-graphite);
  font-size: 0.95rem;
  line-height: 1.78;
}

.page-faq .faq-item__a p {
  margin: 0;
}

.page-faq .faq-item__a a {
  color: var(--gg-cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--gg-line-strong);
}

.page-faq .faq-item__a a:hover {
  color: var(--gg-coral-soft);
  border-bottom-color: var(--gg-coral);
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faq-open 0.24s ease;
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 冰白分组内的反转 */
.page-faq .faq-band--ice .faq-item {
  background: var(--gg-white);
  border-color: rgba(11, 37, 69, 0.16);
  border-left-color: var(--gg-cyan);
  box-shadow: 6px 6px 0 rgba(11, 37, 69, 0.12);
}

.page-faq .faq-band--ice .faq-item[open] {
  border-left-color: var(--gg-coral);
}

.page-faq .faq-band--ice .faq-item:hover {
  box-shadow: 9px 11px 0 rgba(11, 37, 69, 0.2);
}

.page-faq .faq-band--ice .faq-item > summary {
  color: var(--gg-ink);
}

.page-faq .faq-band--ice .faq-item > summary:hover {
  color: #0e6b7c;
}

.page-faq .faq-band--ice .faq-item__num {
  color: #0e6b7c;
}

.page-faq .faq-band--ice .faq-item[open] .faq-item__num {
  color: var(--gg-coral);
}

.page-faq .faq-band--ice .faq-item > summary::after {
  color: #0e6b7c;
}

.page-faq .faq-band--ice .faq-item[open] > summary::after {
  color: var(--gg-coral);
}

.page-faq .faq-band--ice .faq-item__a {
  color: #3d5163;
}

.page-faq .faq-band--ice .faq-item__a a {
  color: #0e6b7c;
  border-bottom-color: rgba(14, 107, 124, 0.45);
}

.page-faq .faq-band--ice .faq-item__a a:hover {
  color: var(--gg-coral);
  border-bottom-color: var(--gg-coral);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(0, 229, 255, 0.16), transparent 60%),
    radial-gradient(90% 80% at 4% 96%, rgba(255, 107, 74, 0.16), transparent 62%),
    var(--gg-abyss);
  border-top: var(--gg-bw) solid var(--gg-line);
}

.page-faq .faq-support__grid {
  display: grid;
  gap: clamp(26px, 3.6vw, 46px);
  align-items: start;
}

.page-faq .faq-support__lead .gg-title {
  margin-top: 8px;
}

.page-faq .faq-support__lead p {
  margin: 12px 0 0;
}

.page-faq .faq-support__lead .gg-btn {
  margin-top: 20px;
}

.page-faq .faq-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--gg-line-soft);
}

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

.page-faq .faq-contact__key {
  margin: 0;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--gg-cyan);
}

.page-faq .faq-contact__val {
  margin: 0;
  font-size: 0.98rem;
  color: var(--gg-white);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-figure {
    padding: 14px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.85fr);
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-group__grid {
    grid-template-columns: minmax(220px, 0.6fr) minmax(0, 1.4fr);
  }
}

@media (max-width: 599px) {
  .page-faq .faq-item > summary {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-faq .faq-item > summary::after {
    justify-self: end;
  }

  .page-faq .faq-jump a {
    width: 100%;
    justify-content: space-between;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-step,
  .page-faq .faq-jump a,
  .page-faq .faq-quick a {
    transition: none;
  }

  .page-faq .faq-item:hover,
  .page-faq .faq-step:hover,
  .page-faq .faq-jump a:hover,
  .page-faq .faq-quick a:hover {
    transform: none;
  }

  .page-faq .faq-item[open] .faq-item__a {
    animation: none;
  }
}