.page-faq {
  background: var(--wd-paper);
  color: var(--wd-ink);
  font-family: var(--wd-font-body);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--wd-border);
  background-color: var(--wd-ink);
  background-image:
    repeating-linear-gradient(0deg, rgba(143, 163, 181, 0.12) 0 1px, transparent 1px 36px),
    repeating-linear-gradient(90deg, rgba(143, 163, 181, 0.12) 0 1px, transparent 1px 36px);
  color: var(--wd-paper);
  padding: clamp(20px, 4vw, 34px) 0 clamp(36px, 6vw, 68px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: 54%;
  height: 142%;
  background: var(--wd-steel);
  transform: skewX(-13deg);
  opacity: 0.5;
  pointer-events: none;
}

.page-faq .faq-hero .wd-container {
  position: relative;
  z-index: 2;
}

.page-faq .faq-breadcrumb .wd-breadcrumb__list {
  color: var(--wd-mist);
  font-size: 13px;
}

.page-faq .faq-hero .wd-breadcrumb__link {
  color: var(--wd-cyan);
  text-decoration: none;
}

.page-faq .faq-hero .wd-breadcrumb__link:hover {
  color: var(--wd-white);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--wd-font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--wd-cyan);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--wd-font-display);
  font-weight: 900;
  font-size: clamp(28px, 5.4vw, 54px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--wd-white);
}

.page-faq .faq-hero h1 em {
  font-style: normal;
  color: var(--wd-orange);
}

.page-faq .faq-hero__sub {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.75;
  color: var(--wd-mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin-top: 26px;
}

.page-faq .faq-hero__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  color: var(--wd-cyan);
  text-decoration: none;
  border-bottom: 2px solid var(--wd-cyan);
  padding-bottom: 2px;
  transition: color var(--wd-dur) var(--wd-ease), border-color var(--wd-dur) var(--wd-ease);
}

.page-faq .faq-hero__link:hover {
  color: var(--wd-white);
  border-color: var(--wd-white);
}

.page-faq .faq-hero__panel {
  background: var(--wd-paper);
  color: var(--wd-ink);
  border: var(--wd-border);
  box-shadow: var(--wd-shadow-lg);
  padding: clamp(16px, 2.4vw, 22px);
}

.page-faq .faq-hero__panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 2px solid var(--wd-black);
}

.page-faq .faq-hero__panel-title {
  margin: 0;
  font-family: var(--wd-font-serif);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__panel-version {
  font-family: var(--wd-font-mono);
  font-size: 11px;
  background: var(--wd-yellow);
  border: 2px solid var(--wd-black);
  padding: 2px 6px;
  white-space: nowrap;
}

.page-faq .faq-hero__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .faq-hero__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--wd-ink);
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform var(--wd-dur) var(--wd-ease), box-shadow var(--wd-dur) var(--wd-ease),
    border-color var(--wd-dur) var(--wd-ease), background var(--wd-dur) var(--wd-ease);
}

.page-faq .faq-hero__list a:hover {
  background: var(--wd-white);
  border-color: var(--wd-black);
  box-shadow: var(--wd-shadow-sm);
  transform: translate(-2px, -2px);
}

.page-faq .faq-hero__list .wd-mono {
  font-size: 12px;
  color: var(--wd-orange);
}

.page-faq .faq-hero__note {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--wd-mist);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--wd-steel);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding-top: clamp(28px, 5vw, 52px);
  padding-bottom: clamp(40px, 7vw, 80px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-faq .faq-tree {
  border: var(--wd-border);
  background: var(--wd-white);
  box-shadow: var(--wd-shadow);
  padding: 16px;
}

.page-faq .faq-tree__title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--wd-black);
  font-family: var(--wd-font-serif);
  font-size: 18px;
  font-weight: 700;
}

.page-faq .faq-tree__title .wd-mono {
  font-size: 11px;
  color: var(--wd-steel);
  letter-spacing: 0.08em;
}

.page-faq .faq-tree__group + .faq-tree__group {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--wd-mist);
}

.page-faq .faq-tree__group-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--wd-steel);
}

.page-faq .faq-tree__group-title .wd-mono {
  background: var(--wd-steel);
  color: var(--wd-white);
  font-size: 11px;
  padding: 1px 5px;
}

.page-faq .faq-tree__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-tree__list a {
  display: block;
  padding: 6px 8px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--wd-ink);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background var(--wd-dur) var(--wd-ease), border-color var(--wd-dur) var(--wd-ease);
}

.page-faq .faq-tree__list a:hover {
  background: var(--wd-paper);
  border-left-color: var(--wd-orange);
}

/* ---------- 区块 ---------- */
.page-faq .faq-section {
  scroll-margin-top: 96px;
}

.page-faq .faq-section + .faq-section {
  margin-top: clamp(30px, 4.5vw, 48px);
}

.page-faq .faq-section__head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--wd-black);
}

.page-faq .faq-section__eyebrow {
  margin: 0;
  font-family: var(--wd-font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--wd-orange);
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--wd-font-serif);
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.28;
  font-weight: 700;
}

.page-faq .faq-section__sub {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--wd-steel);
}

.page-faq .faq-backlink {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-family: var(--wd-font-mono);
  font-size: 12.5px;
  color: var(--wd-steel);
  text-decoration: none;
  border-bottom: 1px dashed var(--wd-mist);
  transition: color var(--wd-dur) var(--wd-ease), border-color var(--wd-dur) var(--wd-ease);
}

.page-faq .faq-backlink:hover {
  color: var(--wd-orange);
  border-color: var(--wd-orange);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 18px;
  border: var(--wd-border);
  background: var(--wd-ink);
  box-shadow: var(--wd-shadow);
}

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

.page-faq .faq-figure figcaption {
  padding: 8px 12px;
  background: var(--wd-white);
  border-top: 2px solid var(--wd-black);
  font-family: var(--wd-font-mono);
  font-size: 12px;
  color: var(--wd-steel);
}

/* ---------- 三步排查 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-step {
  background: var(--wd-white);
  border: var(--wd-border);
  box-shadow: var(--wd-shadow);
  padding: 15px 16px 16px;
  transition: transform var(--wd-dur) var(--wd-ease), box-shadow var(--wd-dur) var(--wd-ease);
}

.page-faq .faq-step:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--wd-shadow-lg);
}

.page-faq .faq-step--key {
  border-left: 8px solid var(--wd-orange);
}

.page-faq .faq-step__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
}

.page-faq .faq-step__num {
  font-family: var(--wd-font-mono);
  font-size: 13px;
  font-weight: 700;
  background: var(--wd-ink);
  color: var(--wd-white);
  padding: 3px 8px;
}

.page-faq .faq-step__title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-faq .faq-step__do,
.page-faq .faq-step__judge {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .faq-step__judge {
  margin-top: 9px;
  padding-top: 9px;
  border-top: 1px dashed var(--wd-mist);
  color: var(--wd-steel);
}

.page-faq .faq-step__label {
  display: inline-block;
  margin-right: 6px;
  padding: 0 5px;
  border: 1px solid var(--wd-black);
  font-family: var(--wd-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--wd-ink);
}

/* ---------- 设备清单 ---------- */
.page-faq .faq-devices {
  display: grid;
  gap: 14px;
}

.page-faq .faq-device {
  display: flex;
  flex-direction: column;
  background: var(--wd-white);
  border: var(--wd-border);
  box-shadow: var(--wd-shadow);
}

.page-faq .faq-device__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 2px solid var(--wd-black);
  background: var(--wd-paper);
}

.page-faq .faq-device--phone .faq-device__head {
  background: var(--wd-cyan);
  color: var(--wd-black);
}

.page-faq .faq-device--tablet .faq-device__head {
  background: var(--wd-steel);
  color: var(--wd-white);
}

.page-faq .faq-device--desktop .faq-device__head {
  background: var(--wd-yellow);
  color: var(--wd-black);
}

.page-faq .faq-device__name {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
}

.page-faq .faq-device__count {
  font-family: var(--wd-font-mono);
  font-size: 11.5px;
  border: 1px solid currentColor;
  padding: 1px 5px;
}

.page-faq .faq-device__list {
  counter-reset: dev;
  list-style: none;
  margin: 0;
  padding: 2px 12px 10px;
}

.page-faq .faq-device__list li {
  counter-increment: dev;
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 8px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(11, 27, 43, 0.14);
  font-size: 13.5px;
  line-height: 1.6;
}

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

.page-faq .faq-device__list li::before {
  content: counter(dev, decimal-leading-zero);
  font-family: var(--wd-font-mono);
  font-size: 11px;
  color: var(--wd-orange);
  padding-top: 3px;
}

.page-faq .faq-device__list b {
  font-weight: 800;
  color: var(--wd-ink);
}

/* ---------- 版本问答 ---------- */
.page-faq .faq-qa {
  display: grid;
  gap: 10px;
}

.page-faq .faq-qa__item {
  background: var(--wd-white);
  border: var(--wd-border);
  box-shadow: var(--wd-shadow-sm);
  transition: box-shadow var(--wd-dur) var(--wd-ease);
}

.page-faq .faq-qa__item[open] {
  box-shadow: var(--wd-shadow);
}

.page-faq .faq-qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 14px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
}

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

.page-faq .faq-qa__q:hover {
  background: var(--wd-paper);
}

.page-faq .faq-qa__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--wd-font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--wd-orange);
}

.page-faq .faq-qa__item[open] .faq-qa__q::after {
  content: "−";
}

.page-faq .faq-qa__idx {
  flex: none;
  font-family: var(--wd-font-mono);
  font-size: 12px;
  color: var(--wd-paper);
  background: var(--wd-ink);
  padding: 2px 6px;
}

.page-faq .faq-qa__a {
  margin: 0 14px 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--wd-mist);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--wd-steel);
}

.page-faq .faq-qa__a p {
  margin: 0 0 8px;
}

.page-faq .faq-qa__a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-qa__a a {
  color: var(--wd-ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--wd-cyan);
}

.page-faq .faq-qa__a a:hover {
  border-color: var(--wd-orange);
}

/* ---------- 速查表 ---------- */
.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: var(--wd-border);
  background: var(--wd-white);
  box-shadow: var(--wd-shadow);
}

.page-faq .faq-table-caption {
  caption-side: top;
  text-align: left;
  padding: 10px 12px 0;
  font-family: var(--wd-font-mono);
  font-size: 12px;
  color: var(--wd-steel);
}

.page-faq .faq-table-wrap .wd-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table-wrap th,
.page-faq .faq-table-wrap td {
  padding: 11px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(11, 27, 43, 0.14);
  line-height: 1.6;
}

.page-faq .faq-table-wrap thead th {
  background: var(--wd-steel);
  color: var(--wd-white);
  font-size: 13px;
  letter-spacing: 0.06em;
  border-bottom: 2px solid var(--wd-black);
  white-space: nowrap;
}

.page-faq .faq-table-wrap tbody tr:hover {
  background: var(--wd-paper);
}

.page-faq .faq-table-wrap tbody td:first-child {
  font-weight: 700;
  color: var(--wd-ink);
}

.page-faq .faq-table-wrap a {
  color: var(--wd-ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--wd-orange);
}

.page-faq .faq-table-wrap a:hover {
  color: var(--wd-orange);
}

/* ---------- 联系协助 ---------- */
.page-faq .faq-support {
  border: var(--wd-border);
  box-shadow: var(--wd-shadow-lg);
  background: var(--wd-ink);
  background-image: repeating-linear-gradient(90deg, rgba(143, 163, 181, 0.1) 0 1px, transparent 1px 30px);
  color: var(--wd-paper);
  padding: clamp(18px, 3vw, 30px);
}

.page-faq .faq-support__grid {
  display: grid;
  gap: 22px;
}

.page-faq .faq-support__title {
  margin: 0 0 8px;
  font-family: var(--wd-font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--wd-white);
}

.page-faq .faq-support__row {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(143, 163, 181, 0.28);
  font-size: 14.5px;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-support__label {
  font-family: var(--wd-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--wd-cyan);
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--wd-mist);
}

.page-faq .faq-support__list li {
  position: relative;
  padding-left: 18px;
}

.page-faq .faq-support__list li::before {
  content: "›";
  position: absolute;
  left: 0;
  font-weight: 900;
  color: var(--wd-orange);
}

.page-faq .faq-support__tip {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--wd-mist);
}

.page-faq .faq-support__tip a {
  color: var(--wd-cyan);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--wd-cyan);
}

.page-faq .faq-support__tip a:hover {
  color: var(--wd-white);
  border-color: var(--wd-white);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-devices {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }

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

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 264px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-tree {
    position: sticky;
    top: 92px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-devices {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 559px) {
  .page-faq .faq-hero::before {
    width: 70%;
    right: -22%;
    opacity: 0.35;
  }

  .page-faq .faq-hero__panel-version {
    font-size: 10px;
  }

  .page-faq .faq-step__label {
    margin-bottom: 4px;
  }

  .page-faq .faq-table-wrap .wd-table {
    min-width: 520px;
  }
}