.page-faq {
  --faq-num-w: 38px;
  --faq-gap: 10px;
  display: block;
  background: var(--paper);
  color: var(--text);
  padding-bottom: 72px;
}

@media (min-width: 640px) {
  .page-faq {
    --faq-num-w: 64px;
    --faq-gap: 20px;
  }
}

/* ---------- 面包屑与首屏 ---------- */

.page-faq .breadcrumbs {
  padding-top: 28px;
  margin-bottom: 26px;
}

.page-faq .faq-hero {
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__kicker {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--signal);
}

.page-faq .faq-hero h1 {
  margin: 0 0 20px;
  font-size: clamp(30px, 7vw, 52px);
  line-height: 1.12;
  letter-spacing: -.01em;
  font-weight: 900;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 40rem;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-faq .faq-hero__jump {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-hero__jump li {
  background: var(--white);
}

.page-faq .faq-hero__jump a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 13px 14px;
  font-size: 14px;
  color: var(--ink-700);
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-hero__jump a .mono {
  font-size: 12px;
  color: var(--signal);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  background: var(--blue-050);
  color: var(--ink-900);
}

@media (min-width: 620px) {
  .page-faq .faq-hero__jump {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-hero__jump {
    grid-template-columns: repeat(6, 1fr);
  }
}

/* ---------- 章节容器 ---------- */

.page-faq .guide-sec {
  padding: 52px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .guide-sec:last-of-type {
  border-bottom: 0;
  padding-bottom: 80px;
}

@media (min-width: 900px) {
  .page-faq .guide-sec {
    padding: 72px 0;
  }
}

.page-faq .sec-head {
  margin-bottom: 28px;
  max-width: 44rem;
}

.page-faq .sec-head .sec-num {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--signal);
}

.page-faq .sec-head h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 3.6vw, 30px);
  line-height: 1.25;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--text);
}

.page-faq .sec-head__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--cold);
}

/* ---------- 01 三条入口 ---------- */

.page-faq .entry-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 800px) {
  .page-faq .entry-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-faq .entry {
  background: var(--white);
  padding: 24px 20px 26px;
  display: grid;
  align-content: start;
  gap: 10px;
  transition: background var(--dur) var(--ease);
}

.page-faq .entry:hover {
  background: var(--blue-050);
}

.page-faq .entry__icon {
  display: block;
  width: 40px;
  height: 40px;
  color: var(--ink-500);
  margin-bottom: 2px;
}

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

.page-faq .entry__idx {
  margin: 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--signal);
}

.page-faq .entry h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--text);
}

.page-faq .entry p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--cold);
}

.page-faq .entry__steps {
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-500);
}

.page-faq .figure {
  margin: 32px 0 0;
}

.page-faq .figure-caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cold);
}

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

/* ---------- 02 索引与检索 ---------- */

.page-faq .channel-grid {
  display: grid;
  gap: 20px;
}

@media (min-width: 820px) {
  .page-faq .channel-grid {
    grid-template-columns: 7fr 5fr;
    align-items: stretch;
  }
}

.page-faq .channel {
  padding: 26px 22px 28px;
  background: var(--white);
  border: 1px solid var(--line);
  display: grid;
  align-content: start;
  gap: 14px;
}

.page-faq .channel--ink {
  background: var(--ink-900);
  border-color: var(--ink-900);
}

.page-faq .channel h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .channel--ink h3 {
  color: var(--white);
}

.page-faq .channel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cold);
}

.page-faq .channel--ink p {
  color: var(--blue-300);
}

.page-faq .channel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .channel__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.page-faq .channel--ink .channel__list li {
  color: var(--blue-050);
}

.page-faq .channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 9px;
  height: 1px;
  background: var(--signal);
}

.page-faq .channel__foot {
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cold);
}

.page-faq .channel__foot a {
  color: var(--ink-500);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease);
}

.page-faq .channel__foot a:hover,
.page-faq .channel__foot a:focus-visible {
  color: var(--signal);
}

/* ---------- 03 版本与更新 ---------- */

.page-faq .ver-layout {
  display: grid;
  gap: 28px;
}

@media (min-width: 900px) {
  .page-faq .ver-layout {
    grid-template-columns: 1fr 260px;
    gap: 44px;
    align-items: start;
  }
}

.page-faq .ver-plate {
  display: grid;
  gap: 6px;
  padding: 24px 22px;
  background: var(--signal-050);
  border-left: 3px solid var(--signal);
  margin-bottom: 26px;
}

.page-faq .ver-plate__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--signal-deep);
}

.page-faq .ver-plate__num {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--ink-900);
}

.page-faq .ver-plate__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cold);
}

.page-faq .ver-rows {
  display: grid;
  border-top: 1px solid var(--line);
}

.page-faq .ver-row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 720px) {
  .page-faq .ver-row {
    grid-template-columns: 76px 120px 1fr;
    gap: 20px;
    align-items: baseline;
  }
}

.page-faq .ver-row__ver {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--signal);
}

.page-faq .ver-row__state {
  font-size: 12px;
  color: var(--confirm);
  white-space: nowrap;
}

.page-faq .ver-row__state::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--confirm);
  margin-right: 6px;
  vertical-align: middle;
}

.page-faq .ver-row p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--cold);
}

.page-faq .ver-note {
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cold);
}

.page-faq .ver-note a {
  color: var(--ink-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .ver-note a:hover,
.page-faq .ver-note a:focus-visible {
  color: var(--signal);
}

.page-faq .ver-update {
  padding: 22px 20px;
  background: var(--ink-900);
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .ver-update__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--blue-300);
}

.page-faq .ver-update__date {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--signal);
}

.page-faq .ver-update__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--blue-050);
}

/* ---------- 04 账号与设备 ---------- */

.page-faq .device-grid {
  display: grid;
  gap: 28px;
}

@media (min-width: 860px) {
  .page-faq .device-grid {
    grid-template-columns: 6fr 5fr;
    gap: 44px;
    align-items: start;
  }
}

.page-faq .device-copy h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .device-copy h3:not(:first-child) {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-faq .device-copy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cold);
}

/* ---------- 05 企业对接与实施 ---------- */

.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 760px) {
  .page-faq .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-faq .step {
  background: var(--white);
  padding: 22px 20px 24px;
  display: grid;
  align-content: start;
  gap: 8px;
  transition: background var(--dur) var(--ease);
}

.page-faq .step:hover {
  background: var(--blue-050);
}

.page-faq .step__num {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--signal);
}

.page-faq .step h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cold);
}

.page-faq .step__time {
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--ink-500);
}

/* ---------- 06 问题分组 ---------- */

.page-faq .qa-group {
  border-top: 1px solid var(--line);
  padding-top: 6px;
  margin-top: 40px;
}

.page-faq .qa-group:first-of-type {
  margin-top: 0;
}

.page-faq .qa-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  padding: 16px 0 14px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--text);
  border-bottom: 1px solid var(--line);
}

.page-faq .qa-group__title .mono {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--signal);
}

@media (min-width: 1024px) {
  .page-faq .qa-group__title {
    position: sticky;
    top: 0;
    z-index: 2;
    background: var(--paper);
  }
}

.page-faq .qa {
  border-bottom: 1px solid var(--line);
  background: transparent;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .qa > summary {
  display: grid;
  grid-template-columns: var(--faq-num-w) 1fr 16px;
  gap: var(--faq-gap);
  align-items: center;
  padding: 16px 12px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa:not([open]) > summary:hover {
  background: var(--blue-050);
}

.page-faq .qa > summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-faq .qa__num {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cold);
  transition: color var(--dur) var(--ease);
}

.page-faq .qa__q {
  font-size: 16px;
  line-height: 1.6;
  font-weight: 600;
  color: var(--text);
}

.page-faq .qa__sign {
  position: relative;
  width: 12px;
  height: 12px;
  justify-self: end;
  align-self: center;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  background: var(--ink-500);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .qa__sign::before {
  top: 5px;
  left: 0;
  width: 12px;
  height: 2px;
}

.page-faq .qa__sign::after {
  top: 0;
  left: 5px;
  width: 2px;
  height: 12px;
}

.page-faq .qa[open] {
  background: var(--blue-050);
  box-shadow: inset 3px 0 0 var(--signal);
}

.page-faq .qa[open] .qa__sign::after {
  transform: scaleY(0);
}

.page-faq .qa[open] .qa__sign::before {
  background: var(--signal);
}

.page-faq .qa[open] .qa__num {
  color: var(--signal);
}

.page-faq .qa__body {
  padding: 0 20px 20px calc(var(--faq-num-w) + var(--faq-gap) + 12px);
}

.page-faq .qa__body p {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-faq .qa__body p + p {
  margin-top: 10px;
}

@media (max-width: 639px) {
  .page-faq .qa__body {
    padding-left: 12px;
  }

  .page-faq .qa__q {
    font-size: 15px;
  }
}

/* ---------- 收尾 ---------- */

.page-faq .guide-sec--end {
  border-top: 1px solid var(--line);
  border-bottom: 0;
  padding-top: 56px;
}

.page-faq .end-note {
  display: grid;
  gap: 14px;
  padding: 32px 24px 34px;
  background: var(--ink-900);
}

@media (min-width: 720px) {
  .page-faq .end-note {
    padding: 40px 36px 42px;
  }
}

.page-faq .end-note h2 {
  margin: 0;
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--white);
}

.page-faq .end-note p {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--blue-300);
}

.page-faq .end-note__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}