.page-faq {
  --faq-hair: rgba(58, 74, 99, .34);
  --faq-hair-strong: rgba(58, 74, 99, .62);
  --faq-glass: rgba(15, 26, 46, .72);
  --faq-glass-soft: rgba(22, 35, 60, .5);
  --faq-gap: clamp(18px, 2.6vw, 34px);
}

/* ---------- 面包屑留白 ---------- */
.page-faq .breadcrumbs {
  padding-top: clamp(16px, 2.4vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(30px, 5vw, 70px) 0 clamp(26px, 4vw, 54px);
  border-bottom: 1px solid var(--faq-hair);
  background:
    radial-gradient(120% 88% at 88% 8%, rgba(54, 224, 216, .13), transparent 62%),
    radial-gradient(92% 70% at 6% 96%, rgba(255, 122, 89, .10), transparent 60%);
}

.page-faq .faq-hero-copy {
  max-width: 62ch;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.6vw, 30px);
}

.page-faq .faq-hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-hero-metric dt {
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-faq .faq-hero-metric dd {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 26px);
  color: var(--gold-hi);
  letter-spacing: -.01em;
}

.page-faq .faq-hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: clamp(24px, 4vw, 0px);
}

.page-faq .faq-hero-svg {
  width: 100%;
  max-width: 420px;
  height: auto;
  filter: drop-shadow(0 24px 46px rgba(0, 0, 0, .55));
}

.page-faq .faq-ring {
  transform-origin: center;
}

.page-faq .faq-ring--a {
  animation: faq-draw 1.4s cubic-bezier(.22, .8, .3, 1) both;
}

.page-faq .faq-ring--b {
  animation: faq-draw 1.8s cubic-bezier(.22, .8, .3, 1) .15s both;
}

@keyframes faq-draw {
  from { opacity: 0; transform: scale(.86); }
  to { opacity: 1; transform: scale(1); }
}

/* ---------- 筛选区 ---------- */
.page-faq .faq-filter-split {
  align-items: start;
}

.page-faq .faq-filter-panel {
  background: var(--faq-glass);
  border: 1px solid var(--faq-hair-strong);
  border-radius: var(--radius);
  padding: clamp(20px, 2.6vw, 30px);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-dim + .faq-dim {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px dashed var(--faq-hair-strong);
}

.page-faq .faq-dim-label {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--text-dim);
  margin: 0 0 12px;
}

.page-faq .faq-chiprow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chiprow .tag {
  display: inline-block;
  text-decoration: none;
  transition: transform .18s ease, background-color .18s ease;
}

.page-faq .faq-chiprow .tag:hover,
.page-faq .faq-chiprow .tag:focus-visible {
  transform: translateY(-2px);
}

.page-faq .faq-filter-note {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--faq-hair);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-filter-figure {
  margin: 0;
}

/* ---------- 图片容器统一 ---------- */
.page-faq .media-frame {
  border: 1px solid var(--faq-hair-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-2);
}

.page-faq .media-frame > img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .figure-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 高频问题 ---------- */
.page-faq .faq-hot-grid {
  gap: var(--faq-gap);
}

.page-faq .faq-hot-card {
  position: relative;
  padding-left: clamp(18px, 2vw, 24px);
}

.page-faq .faq-hot-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(54, 224, 216, 0));
}

.page-faq .faq-hot-grid > :nth-child(2)::before {
  background: linear-gradient(180deg, var(--gold), rgba(201, 162, 74, 0));
}

.page-faq .faq-hot-grid > :nth-child(3)::before,
.page-faq .faq-hot-grid > :nth-child(4)::before {
  background: linear-gradient(180deg, var(--coral), rgba(255, 122, 89, 0));
}

.page-faq .faq-hot-code {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--text-dim);
  margin: 0 0 10px;
}

.page-faq .faq-hot-card .card-title {
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.5;
}

.page-faq .faq-hot-card .card-body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 0;
}

/* ---------- 周期分组 ---------- */
.page-faq .faq-cycles-body {
  min-width: 0;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(28px, 3.6vw, 48px);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--faq-hair-strong);
}

.page-faq .faq-group-code {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  background: var(--cyan);
  border-radius: var(--radius-sm);
}

.page-faq .faq-group:nth-of-type(2) .faq-group-code {
  background: var(--coral);
}

.page-faq .faq-group:nth-of-type(3) .faq-group-code {
  background: var(--gold);
}

.page-faq .faq-group-title {
  margin: 2px 0 4px;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-faq .faq-group-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px dashed var(--faq-hair-strong);
  background: transparent;
  transition: background-color .2s ease;
}

.page-faq .faq-item[open] {
  background: var(--faq-glass-soft);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 58px 1fr 22px;
  align-items: baseline;
  gap: 10px;
  padding: 16px 10px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-code {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-faq .faq-q-text {
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
}

.page-faq .faq-mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-left: auto;
  align-self: center;
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  background: var(--gold);
  transition: transform .22s ease, opacity .22s ease;
}

.page-faq .faq-mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 10px 20px 68px;
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 68ch;
}

/* ---------- 矩阵区 ---------- */
.page-faq .faq-matrix {
  border-top: 1px solid var(--faq-hair);
  border-bottom: 1px solid var(--faq-hair);
  background: linear-gradient(180deg, rgba(15, 26, 46, .55), rgba(11, 18, 32, 0));
}

.page-faq .faq-matrix-copy {
  max-width: 60ch;
}

.page-faq .faq-matrix-list {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-matrix-list li {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--faq-hair);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-matrix-num {
  font-size: 15px;
  font-weight: 700;
  color: var(--gold-hi);
}

.page-faq .faq-matrix-figure {
  margin: 0;
}

/* ---------- 桌台类型标签页 ---------- */
.page-faq .faq-tabs {
  margin-top: clamp(20px, 2.6vw, 30px);
}

.page-faq .faq-tabs .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-bottom: 1px solid var(--faq-hair-strong);
  padding-bottom: 14px;
}

.page-faq .faq-tabs .tab {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--faq-hair-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease, transform .18s ease;
}

.page-faq .faq-tabs .tab:hover {
  transform: translateY(-2px);
  color: var(--text);
  border-color: var(--coral);
}

.page-faq .faq-tabs .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-tabs .tab[aria-selected="true"] {
  color: var(--ink);
  background: var(--coral);
  border-color: var(--coral);
}

.page-faq .tab-pct {
  font-size: 11px;
  letter-spacing: .04em;
  opacity: .85;
}

.page-faq .faq-panel {
  padding-top: 10px;
}

/* ---------- 维护节奏 ---------- */
.page-faq .faq-update-grid {
  gap: var(--faq-gap);
}

.page-faq .faq-update-card {
  padding: clamp(18px, 2.2vw, 24px);
  border-top: 2px solid var(--cyan);
}

.page-faq .faq-update-grid > :nth-child(2) {
  border-top-color: var(--gold);
}

.page-faq .faq-update-grid > :nth-child(3) {
  border-top-color: var(--coral);
}

.page-faq .faq-update-cycle {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--text-dim);
}

.page-faq .faq-update-card .stat-value {
  margin: 0;
  font-size: clamp(28px, 3.4vw, 38px);
  color: var(--gold-hi);
}

.page-faq .faq-update-card .stat-label {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-updates-more {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--faq-hair);
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 74ch;
}

.page-faq .faq-updates-more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(54, 224, 216, .45);
}

.page-faq .faq-updates-more a:hover,
.page-faq .faq-updates-more a:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 联系入口 ---------- */
.page-faq .faq-cta-box {
  position: relative;
  border: 1px solid var(--faq-hair-strong);
  border-radius: var(--radius);
  padding: clamp(24px, 3.4vw, 44px);
  background:
    radial-gradient(110% 100% at 92% 4%, rgba(255, 122, 89, .16), transparent 60%),
    radial-gradient(90% 90% at 4% 100%, rgba(54, 224, 216, .12), transparent 58%),
    var(--faq-glass);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-cta-copy {
  max-width: 60ch;
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.4vw, 28px);
}

.page-faq .faq-cta-contacts {
  margin: clamp(26px, 3.2vw, 36px) 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--faq-hair-strong);
}

.page-faq .faq-cta-contacts .contact-line {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 14px;
  align-items: baseline;
}

.page-faq .faq-cta-contacts .contact-key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-faq .faq-cta-contacts .contact-value {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-a {
    padding-left: 78px;
  }

  .page-faq .faq-cta-contacts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 28px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-visual {
    margin-top: 0;
  }

  .page-faq .faq-hero .split {
    align-items: center;
  }

  .page-faq .faq-filter-split {
    gap: clamp(28px, 3.4vw, 52px);
  }

  .page-faq .faq-matrix .split {
    align-items: center;
    gap: clamp(28px, 3.4vw, 52px);
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-cycles .with-rail {
    gap: clamp(28px, 3vw, 48px);
  }

  .page-faq .faq-cycles .rail {
    position: sticky;
    top: 120px;
    align-self: start;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-item > summary {
    grid-template-columns: 52px 1fr 18px;
    gap: 8px;
    padding: 14px 4px;
  }

  .page-faq .faq-a {
    padding-left: 60px;
  }

  .page-faq .faq-matrix-list li {
    grid-template-columns: 54px 1fr;
    gap: 10px;
  }

  .page-faq .faq-cta-contacts .contact-line {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-faq .faq-tabs .tab {
    padding: 9px 13px;
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-ring--a,
  .page-faq .faq-ring--b {
    animation: none;
  }

  .page-faq .faq-chiprow .tag:hover,
  .page-faq .faq-chiprow .tag:focus-visible,
  .page-faq .faq-tabs .tab:hover {
    transform: none;
  }
}