.page-faq {
  --faq-line: #D9D3C6;
  --faq-line-soft: #E8E8E8;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--cream);
  padding: clamp(28px, 4.4vw, 52px) 0 clamp(36px, 5.4vw, 68px);
  border-bottom: 4px solid var(--fox);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -90px;
  right: -110px;
  width: clamp(200px, 28vw, 420px);
  height: clamp(200px, 28vw, 420px);
  background: var(--fox);
  opacity: .14;
  transform: rotate(20deg);
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumbs {
  position: relative;
  z-index: 1;
  color: rgba(245, 241, 232, .55);
  margin-bottom: 22px;
}

.page-faq .faq-hero .breadcrumbs a {
  color: rgba(245, 241, 232, .82);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumbs a:hover,
.page-faq .faq-hero .breadcrumbs a:focus-visible {
  color: var(--fox);
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, .9fr);
    align-items: end;
    gap: 56px;
  }
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(32px, 5.4vw, 68px);
  line-height: 1.03;
  letter-spacing: .01em;
  margin: 14px 0 0;
  max-width: 16ch;
}

.page-faq .faq-lead {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.62;
  color: rgba(245, 241, 232, .76);
}

.page-faq .faq-metric {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 18px;
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid rgba(245, 241, 232, .24);
}

.page-faq .faq-metric-item {
  min-width: 0;
}

.page-faq .faq-metric dt {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1;
  color: var(--fox);
}

.page-faq .faq-metric dd {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: .04em;
  color: rgba(245, 241, 232, .62);
}

/* ---------- 四类索引条 ---------- */
.page-faq .faq-index {
  padding: clamp(34px, 4.6vw, 60px) 0 0;
}

.page-faq .faq-index-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-index-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.1;
  letter-spacing: .02em;
}

.page-faq .faq-index-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--mist);
}

.page-faq .faq-index-list {
  display: grid;
  grid-template-columns: 1fr;
  border-bottom: 1px solid var(--faq-line);
}

@media (min-width: 620px) {
  .page-faq .faq-index-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-index-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-faq .faq-index-item {
  display: block;
  position: relative;
  padding: 20px 18px 22px 0;
  border-bottom: 1px solid var(--faq-line);
  text-decoration: none;
  color: var(--ink);
  transition: background-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-faq .faq-index-item:last-child {
  border-bottom: 0;
}

@media (min-width: 620px) {
  .page-faq .faq-index-item {
    padding-left: 20px;
    border-right: 1px solid var(--faq-line);
  }
  .page-faq .faq-index-item:nth-child(2n) {
    border-right: 0;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-index-item {
    border-bottom: 0;
    border-right: 1px solid var(--faq-line);
  }
  .page-faq .faq-index-item:nth-child(2n) {
    border-right: 1px solid var(--faq-line);
  }
  .page-faq .faq-index-item:first-child {
    padding-left: 0;
  }
  .page-faq .faq-index-item:last-child {
    border-right: 0;
  }
}

.page-faq .faq-index-item:hover,
.page-faq .faq-index-item:focus-visible {
  background: var(--paper);
}

.page-faq .faq-index-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  line-height: 1;
  color: var(--fox);
}

.page-faq .faq-index-name {
  display: block;
  margin-top: 12px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.2;
  letter-spacing: .02em;
}

.page-faq .faq-index-desc {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.52;
  color: var(--mist);
}

/* ---------- 通栏配图 ---------- */
.page-faq .faq-banner {
  margin: clamp(30px, 4vw, 52px) 0 0;
}

.page-faq .faq-banner img {
  display: block;
  width: 100%;
  height: clamp(150px, 24vw, 360px);
  object-fit: cover;
  filter: saturate(.72) contrast(1.05);
}

/* ---------- 问答分区 ---------- */
.page-faq .faq-block {
  padding-top: clamp(34px, 4.8vw, 64px);
  scroll-margin-top: 76px;
}

.page-faq .faq-block > .container {
  border-top: 1px solid var(--faq-line);
  padding-top: clamp(22px, 3vw, 36px);
}

.page-faq .faq-block-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: clamp(18px, 2.4vw, 28px);
}

.page-faq .faq-block-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1;
  letter-spacing: .01em;
}

.page-faq .faq-block-tag {
  padding: 3px 8px;
  border: 1px solid var(--fox);
  color: var(--fox-deep);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.4;
}

.page-faq .faq-block-desc {
  flex-basis: 100%;
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.62;
  color: var(--mist);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-items: start;
}

@media (min-width: 780px) {
  .page-faq .faq-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 28px;
  }
}

@media (min-width: 780px) {
  .page-faq .faq-list--single {
    grid-template-columns: 1fr;
  }
}

.page-faq .faq-item {
  background: var(--paper);
  border: 1px solid var(--faq-line);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: #C4BCAA;
}

.page-faq .faq-item[open] {
  border-color: var(--fox);
  box-shadow: inset 3px 0 0 var(--fox);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item summary::after {
  flex: none;
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.1;
  color: var(--mist);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item[open] .faq-q {
  color: var(--fox-deep);
}

.page-faq .faq-a {
  margin: 0 18px 16px;
  padding-top: 13px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 两步注册示意图 ---------- */
.page-faq .faq-svg-card {
  margin: 0;
  padding: 20px 18px 18px;
  background: var(--ink);
  border: 1px solid var(--ink);
}

.page-faq .faq-svg-card svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-svg-card .s-box {
  fill: none;
  stroke: rgba(245, 241, 232, .55);
  stroke-width: 1.5;
}

.page-faq .faq-svg-card .s-box-fox {
  fill: var(--fox);
  stroke: none;
}

.page-faq .faq-svg-card .s-line {
  fill: none;
  stroke: var(--fox);
  stroke-width: 2;
}

.page-faq .faq-svg-card .s-t,
.page-faq .faq-svg-card .s-t-ink,
.page-faq .faq-svg-card .s-n,
.page-faq .faq-svg-card .s-n-ink {
  font-family: var(--font-body);
}

.page-faq .faq-svg-card .s-t {
  fill: var(--cream);
  font-size: 12px;
}

.page-faq .faq-svg-card .s-t-ink {
  fill: var(--ink);
  font-size: 12px;
}

.page-faq .faq-svg-card .s-n {
  fill: rgba(245, 241, 232, .55);
  font-size: 10px;
  letter-spacing: .08em;
}

.page-faq .faq-svg-card .s-n-ink {
  fill: rgba(20, 20, 20, .68);
  font-size: 10px;
  letter-spacing: .08em;
}

.page-faq .faq-svg-card figcaption {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(245, 241, 232, .2);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(245, 241, 232, .66);
}

/* ---------- 客户端安装配图 ---------- */
.page-faq .faq-client-layout {
  display: grid;
  gap: 22px;
}

@media (min-width: 980px) {
  .page-faq .faq-client-layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }
}

.page-faq .faq-client-figure {
  margin: 0;
  padding: 10px;
  background: var(--paper);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-client-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 700;
  object-fit: cover;
  filter: saturate(.75) contrast(1.04);
}

/* ---------- 兜底联系区 ---------- */
.page-faq .faq-help {
  margin-top: clamp(48px, 6.5vw, 92px);
  padding: clamp(40px, 5.6vw, 76px) 0;
  background: var(--ink-2);
  color: var(--cream);
  border-top: 3px solid var(--fox);
}

.page-faq .faq-help-grid {
  display: grid;
  gap: 30px;
}

@media (min-width: 900px) {
  .page-faq .faq-help-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

.page-faq .faq-help-title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.06;
  letter-spacing: .01em;
  max-width: 18ch;
}

.page-faq .faq-help-text {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.68;
  color: rgba(245, 241, 232, .74);
}

.page-faq .faq-help-card {
  padding: 24px 22px 26px;
  border: 1px solid rgba(245, 241, 232, .24);
}

.page-faq .faq-help-label {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: .16em;
  color: rgba(245, 241, 232, .58);
}

.page-faq .faq-help-email {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(15px, 1.6vw, 19px);
  line-height: 1.3;
  color: var(--fox);
  word-break: break-all;
}

.page-faq .faq-help-time {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(245, 241, 232, .7);
}

.page-faq .faq-help-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-faq .faq-help-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 9px;
  font-size: 14.5px;
  line-height: 1.62;
  color: rgba(245, 241, 232, .78);
}

.page-faq .faq-help-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 1px;
  background: var(--fox);
}

.page-faq .faq-help-cta {
  margin-top: 24px;
}

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