.page-faq {
  --faq-rail-w: 268px;
  --faq-gap: 48px;
  position: relative;
  overflow-x: clip;
  background: var(--yw-ink);
  color: var(--yw-text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 88px 0 56px;
  overflow: hidden;
  border-bottom: 1px solid var(--yw-line);
}

.page-faq .faq-hero__glow {
  position: absolute;
  top: -180px;
  right: -140px;
  width: min(680px, 92vw);
  height: min(680px, 92vw);
  background:
    radial-gradient(circle at 32% 30%, rgba(29, 229, 255, 0.20), transparent 62%),
    radial-gradient(circle at 68% 66%, rgba(138, 92, 255, 0.18), transparent 60%);
  pointer-events: none;
  animation: faqBreathe 7s ease-in-out infinite;
}

.page-faq .faq-hero__slash {
  position: absolute;
  left: -8%;
  bottom: -46px;
  width: 116%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--yw-magenta) 42%, var(--yw-cyan) 78%, transparent);
  transform: rotate(-3deg);
  opacity: 0.5;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  padding-left: 26px;
  border-left: 1px solid var(--yw-line);
}

.page-faq .faq-hero__inner::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  width: 1px;
  height: 96px;
  background: repeating-linear-gradient(180deg, var(--yw-cyan) 0 6px, transparent 6px 14px);
}

.page-faq .faq-hero h1 {
  margin: 16px 0 20px;
  font-size: clamp(32px, 7vw, 74px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  font-weight: 800;
  max-width: 16ch;
  background: linear-gradient(96deg, var(--yw-text) 42%, var(--yw-cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-hero__lead {
  max-width: 40rem;
}

.page-faq .faq-hero__lead p {
  margin: 0;
  color: var(--yw-muted);
}

.page-faq .faq-hero__hint {
  margin: 22px 0 0;
  padding: 12px 16px;
  max-width: 44rem;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yw-text);
  background: linear-gradient(90deg, rgba(29, 229, 255, 0.10), rgba(138, 92, 255, 0.06));
  border-left: 2px solid var(--yw-cyan);
}

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

/* ---------- 场景筛选条 ---------- */
.page-faq .faq-stage {
  padding: 40px 24px 72px;
}

.page-faq .faq-search {
  padding: 18px 20px;
  margin-bottom: 32px;
  background: var(--yw-panel);
  border: 1px solid var(--yw-line);
  border-left: 2px solid var(--yw-violet);
}

.page-faq .faq-search__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--yw-violet);
  text-transform: uppercase;
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 分栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 28px;
}

.page-faq .faq-rail {
  align-self: start;
  padding: 18px 18px 20px;
  background: linear-gradient(160deg, rgba(16, 26, 49, 0.9), rgba(11, 17, 32, 0.55));
  border: 1px solid var(--yw-line);
  clip-path: polygon(0 0, calc(100% - var(--yw-cut)) 0, 100% var(--yw-cut), 100% 100%, 0 100%);
}

.page-faq .faq-rail__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--yw-muted);
  border-bottom: 1px solid var(--yw-line);
  text-transform: uppercase;
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-rail__item {
  position: relative;
  padding-left: 14px;
}

.page-faq .faq-rail__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 2px;
  height: 14px;
  background: var(--yw-line);
  transition: background 0.3s var(--yw-ease), height 0.3s var(--yw-ease);
}

.page-faq .faq-rail__item a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 0;
  font-size: 15px;
  line-height: 1.45;
  color: var(--yw-muted);
  text-decoration: none;
  transition: color 0.25s var(--yw-ease);
}

.page-faq .faq-rail__item a .yw-mono {
  font-size: 12px;
  color: var(--yw-violet);
  letter-spacing: 0.1em;
}

.page-faq .faq-rail__item:hover::before,
.page-faq .faq-rail__item:focus-within::before {
  background: var(--yw-gold);
  height: 22px;
}

.page-faq .faq-rail__item:hover a,
.page-faq .faq-rail__item:focus-within a {
  color: var(--yw-text);
}

.page-faq:has(#faq-index[data-active="true"]) .faq-rail__item--overview::before,
.page-faq:has(#faq-register[data-active="true"]) .faq-rail__item--register::before,
.page-faq:has(#faq-device[data-active="true"]) .faq-rail__item--device::before,
.page-faq:has(#faq-service[data-active="true"]) .faq-rail__item--service::before,
.page-faq:has(#faq-replay[data-active="true"]) .faq-rail__item--replay::before,
.page-faq:has(#faq-support[data-active="true"]) .faq-rail__item--support::before {
  background: var(--yw-gold);
  height: 22px;
}

.page-faq:has(#faq-index[data-active="true"]) .faq-rail__item--overview a,
.page-faq:has(#faq-register[data-active="true"]) .faq-rail__item--register a,
.page-faq:has(#faq-device[data-active="true"]) .faq-rail__item--device a,
.page-faq:has(#faq-service[data-active="true"]) .faq-rail__item--service a,
.page-faq:has(#faq-replay[data-active="true"]) .faq-rail__item--replay a,
.page-faq:has(#faq-support[data-active="true"]) .faq-rail__item--support a {
  color: var(--yw-text);
}

.page-faq .faq-rail__note {
  margin: 16px 0 0;
  padding-top: 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--yw-muted);
  border-top: 1px dashed var(--yw-line);
}

/* ---------- 条目 ---------- */
.page-faq .faq-entries {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.page-faq .faq-entry {
  scroll-margin-top: 110px;
  background: var(--yw-panel);
  border: 1px solid var(--yw-line);
  border-left: 2px solid var(--yw-line);
  transition: border-color 0.3s var(--yw-ease);
}

.page-faq .faq-entry[hidden] {
  display: none;
}

.page-faq .faq-entry[open] {
  border-color: rgba(29, 229, 255, 0.5);
  border-left-color: var(--yw-cyan);
  background: linear-gradient(180deg, rgba(16, 26, 49, 0.96), rgba(11, 17, 32, 0.9));
}

.page-faq .faq-entry--key {
  border-left-color: var(--yw-gold);
  box-shadow: 0 0 0 1px rgba(245, 192, 74, 0.12), 0 24px 60px -40px rgba(29, 229, 255, 0.6);
}

.page-faq .faq-entry--key[open] {
  border-left-color: var(--yw-gold);
}

.page-faq .faq-entry:target {
  border-color: var(--yw-gold);
  border-left-color: var(--yw-gold);
}

.page-faq .faq-entry__head {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 14px;
  align-items: center;
  padding: 20px 20px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-entry__no {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--yw-violet);
}

.page-faq .faq-entry__title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--yw-text);
}

.page-faq .faq-entry__meta {
  display: none;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--yw-muted);
}

.page-faq .faq-entry__head::after {
  content: "+";
  font-size: 20px;
  line-height: 1;
  color: var(--yw-cyan);
  transition: transform 0.3s var(--yw-ease), color 0.3s var(--yw-ease);
}

.page-faq .faq-entry[open] .faq-entry__head::after {
  content: "–";
  color: var(--yw-gold);
}

.page-faq .faq-entry__head:hover::after {
  transform: translateX(3px);
}

.page-faq .faq-entry__body {
  padding: 4px 20px 26px;
  border-top: 1px solid rgba(42, 58, 92, 0.7);
  animation: faqFade 0.3s var(--yw-ease) both;
}

.page-faq .faq-entry__body .yw-prose p {
  color: var(--yw-muted);
}

.page-faq .faq-entry__body a {
  color: var(--yw-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(29, 229, 255, 0.4);
}

.page-faq .faq-entry__body a:hover {
  color: var(--yw-gold);
  border-bottom-color: var(--yw-gold);
}

/* ---------- 条目内小组件 ---------- */
.page-faq .faq-mini {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-mini li {
  padding: 10px 14px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--yw-muted);
  background: rgba(5, 7, 14, 0.5);
  border-left: 2px solid var(--yw-line);
}

.page-faq .faq-mini strong {
  color: var(--yw-text);
}

.page-faq .faq-split {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .faq-block {
  padding: 14px 16px;
  background: rgba(5, 7, 14, 0.55);
  border-top: 2px solid var(--yw-violet);
}

.page-faq .faq-block__label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--yw-violet);
  text-transform: uppercase;
}

.page-faq .faq-block__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--yw-muted);
}

.page-faq .faq-tip {
  margin: 20px 0 0;
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yw-muted);
  background: linear-gradient(90deg, rgba(255, 46, 136, 0.10), transparent 70%);
  border-left: 2px solid var(--yw-magenta);
}

/* ---------- 图文 ---------- */
.page-faq .faq-figure {
  display: grid;
  gap: 20px;
  margin-top: 16px;
}

.page-faq .faq-figure--stack {
  gap: 16px;
}

.page-faq .faq-figure__media img,
.page-faq .faq-compare__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--yw-line);
}

.page-faq .yw-media__caption {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--yw-muted);
}

/* ---------- 对比表 ---------- */
.page-faq .faq-table-wrap {
  margin-top: 24px;
  overflow-x: auto;
}

.page-faq .faq-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-faq .faq-table__caption {
  text-align: left;
  padding-bottom: 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--yw-muted);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 13px 12px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  color: var(--yw-muted);
  border-bottom: 1px solid var(--yw-line);
}

.page-faq .faq-table thead th {
  color: var(--yw-text);
  font-weight: 700;
  border-bottom: 2px solid var(--yw-cyan);
  background: rgba(29, 229, 255, 0.05);
}

.page-faq .faq-table tbody th {
  color: var(--yw-text);
  font-weight: 600;
  white-space: nowrap;
}

.page-faq .faq-table__row--diff th[scope="row"] {
  box-shadow: inset 3px 0 0 var(--yw-magenta);
}

.page-faq .faq-table tbody tr:hover td,
.page-faq .faq-table tbody tr:hover th {
  color: var(--yw-text);
  background: rgba(138, 92, 255, 0.06);
}

/* ---------- 选档提示 ---------- */
.page-faq .faq-picks {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-pick {
  padding: 16px 16px 18px;
  background: rgba(5, 7, 14, 0.6);
  border: 1px solid var(--yw-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .faq-pick__name {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--yw-gold);
  text-transform: uppercase;
}

.page-faq .faq-pick__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--yw-muted);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-contact .yw-contact-item {
  padding: 12px 14px;
  background: rgba(5, 7, 14, 0.6);
  border-left: 2px solid var(--yw-cyan);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 动效 ---------- */
@keyframes faqFade {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes faqBreathe {
  0%,
  100% {
    opacity: 0.72;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.06);
  }
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 120px 0 76px;
  }

  .page-faq .faq-hero__inner {
    padding-left: 40px;
  }

  .page-faq .faq-hero__anno {
    display: block;
    position: absolute;
    right: 24px;
    top: 140px;
  }

  .page-faq .faq-stage {
    padding: 52px 24px 96px;
  }

  .page-faq .faq-search {
    display: flex;
    align-items: center;
    gap: 22px;
    padding: 20px 24px;
  }

  .page-faq .faq-search__label {
    margin: 0;
    flex: 0 0 auto;
  }

  .page-faq .faq-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-picks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-entry__head {
    padding: 24px 28px;
  }

  .page-faq .faq-entry__meta {
    display: inline;
  }

  .page-faq .faq-entry__body {
    padding: 6px 28px 30px;
  }

  .page-faq .faq-entry__title {
    font-size: 21px;
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: var(--faq-gap);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 108px;
    padding: 22px 20px 24px;
  }

  .page-faq .faq-entries {
    gap: 18px;
  }

  .page-faq .faq-figure {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 32px;
  }

  .page-faq .faq-figure--stack {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-entry__head {
    padding: 26px 34px;
  }

  .page-faq .faq-entry__body {
    padding: 8px 34px 36px;
  }
}

/* ---------- 窄屏表格转卡片 ---------- */
@media (max-width: 719px) {
  .page-faq .faq-table,
  .page-faq .faq-table tbody,
  .page-faq .faq-table tr,
  .page-faq .faq-table th,
  .page-faq .faq-table td {
    display: block;
    width: 100%;
  }

  .page-faq .faq-table thead {
    display: none;
  }

  .page-faq .faq-table__caption {
    padding-bottom: 10px;
  }

  .page-faq .faq-table tr {
    margin-bottom: 14px;
    padding: 6px 0 10px;
    background: rgba(5, 7, 14, 0.55);
    border: 1px solid var(--yw-line);
  }

  .page-faq .faq-table tr:last-child {
    margin-bottom: 0;
  }

  .page-faq .faq-table th,
  .page-faq .faq-table td {
    padding: 10px 14px;
    border-bottom: 1px dashed rgba(42, 58, 92, 0.8);
  }

  .page-faq .faq-table tr > *:last-child {
    border-bottom: 0;
  }

  .page-faq .faq-table td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 4px;
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--yw-violet);
  }

  .page-faq .faq-table tbody th {
    white-space: normal;
    font-size: 13px;
    letter-spacing: 0.06em;
    color: var(--yw-cyan);
  }

  .page-faq .faq-table__row--diff th[scope="row"] {
    box-shadow: inset 3px 0 0 var(--yw-magenta);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__glow {
    animation: none;
    opacity: 0.85;
  }

  .page-faq .faq-entry__body {
    animation: none;
  }

  .page-faq .faq-entry__head::after,
  .page-faq .faq-rail__item::before {
    transition: none;
  }
}