.page-faq {
  --faq-gap: clamp(56px, 8vw, 104px);
  --faq-line: rgba(155, 176, 196, 0.18);
  --faq-line-strong: rgba(155, 176, 196, 0.34);
  --faq-panel: rgba(18, 40, 60, 0.72);
  --faq-panel-soft: rgba(30, 59, 82, 0.38);
  display: block;
  padding-bottom: clamp(48px, 6vw, 88px);
}

.page-faq .faq-shell {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: clamp(20px, 3vw, 36px) var(--pad-x) 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-bottom: clamp(28px, 4vw, 44px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--amber), var(--cyan) 44%, transparent 80%);
}

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(28px, 5.6vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--paper);
  max-width: 22ch;
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--faq-line);
  background: var(--faq-panel-soft);
  color: var(--mist);
  font-size: 13px;
  line-height: 1.6;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--paper);
  border-color: rgba(255, 138, 61, 0.6);
  background: rgba(255, 138, 61, 0.14);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-section {
  padding-top: var(--faq-gap);
  scroll-margin-top: 96px;
}

.page-faq .faq-head {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 14px;
  align-items: center;
  margin-bottom: 22px;
}

.page-faq .faq-index {
  grid-row: 1;
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
  border: 1px solid rgba(255, 138, 61, 0.42);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}

.page-faq .faq-head h2 {
  grid-row: 1;
  grid-column: 2;
  margin: 0;
  font-size: clamp(20px, 3.2vw, 30px);
  line-height: 1.34;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-sub {
  grid-column: 1 / -1;
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-aside {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-aside a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-aside a:hover,
.page-faq .faq-aside a:focus-visible {
  color: var(--amber-soft);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 24px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background: var(--ink-2);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 18px 16px;
  border-radius: var(--r-md);
  background: var(--faq-panel);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-step-idx {
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.2;
  color: var(--amber-soft);
  border-right: 1px solid var(--faq-line-strong);
  padding-right: 10px;
  align-self: start;
}

.page-faq .faq-step-body h3 {
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-step-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-step-result {
  margin-top: 12px !important;
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
  color: var(--cyan) !important;
  font-size: 14px !important;
}

/* ---------- 排查清单 ---------- */
.page-faq .faq-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-check {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 12px;
  padding: 16px;
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(30, 59, 82, 0.5), rgba(18, 40, 60, 0.62));
  border: 1px solid var(--faq-line);
}

.page-faq .faq-check-idx {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2;
  color: var(--paper);
  background: var(--ink-3);
  border-radius: var(--r-sm);
  text-align: center;
  height: 26px;
}

.page-faq .faq-check h3 {
  margin: 0 0 7px;
  font-size: 15.5px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-check p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 抽屉 ---------- */
.page-faq .faq-drawer {
  margin-top: 14px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: var(--ink-2);
  overflow: hidden;
}

.page-faq .faq-drawer--wide {
  margin-top: 20px;
}

.page-faq .faq-drawer > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-drawer > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--amber);
  flex: none;
}

.page-faq .faq-drawer[open] > summary::after {
  content: "−";
}

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

.page-faq .faq-drawer-body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--faq-line);
  padding-top: 14px;
}

.page-faq .faq-drawer-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 收藏同步流程 ---------- */
.page-faq .faq-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-flow-item {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding-bottom: 22px;
  scroll-margin-top: 96px;
}

.page-faq .faq-flow-item::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 34px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--faq-line-strong), transparent);
}

.page-faq .faq-flow-item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-flow-item:last-child::before {
  display: none;
}

.page-faq .faq-flow-node {
  width: 44px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  background: var(--amber);
  border-radius: var(--r-sm);
}

.page-faq .faq-flow-body {
  padding-top: 4px;
}

.page-faq .faq-flow-body h3 {
  margin: 0 0 7px;
  font-size: 15.5px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-flow-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-flow-body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-flow-body a:hover,
.page-faq .faq-flow-body a:focus-visible {
  color: var(--amber-soft);
}

/* ---------- 字段分组 ---------- */
.page-faq .faq-fieldgroups {
  display: grid;
  gap: 14px;
}

.page-faq .faq-fieldgroup {
  padding: 18px;
  border-radius: var(--r-md);
  background: var(--faq-panel);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-fieldgroup h3 {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-faq .faq-chips {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-chips .field {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--cyan-soft);
  border-radius: 999px;
  padding: 4px 11px;
  white-space: nowrap;
}

.page-faq .faq-fieldgroup p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 导入小步骤 ---------- */
.page-faq .faq-mini-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-mini-steps li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-mini-idx {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.9;
  text-align: center;
  color: var(--paper);
  background: var(--ink-3);
  border-radius: var(--r-sm);
  height: 24px;
}

/* ---------- 变更四要素 ---------- */
.page-faq .faq-changeparts {
  display: grid;
  gap: 12px;
}

.page-faq .faq-changepart {
  padding: 15px 18px;
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: linear-gradient(180deg, rgba(18, 40, 60, 0.9), rgba(11, 27, 43, 0.66));
}

.page-faq .faq-changepart h3 {
  margin: 0 0 7px;
  font-size: 15.5px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--amber-soft);
}

.page-faq .faq-changepart p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 设备适配 ---------- */
.page-faq .faq-devicelist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .faq-devicelist li {
  display: grid;
  gap: 5px;
  padding: 15px 16px;
  border-radius: var(--r-sm);
  background: var(--faq-panel-soft);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-device-key {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-device-text {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 结尾 ---------- */
.page-faq .faq-cta {
  margin-top: var(--faq-gap);
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--r-lg);
  border: 1px solid rgba(255, 138, 61, 0.28);
  background:
    linear-gradient(135deg, rgba(255, 138, 61, 0.16), rgba(53, 224, 200, 0.13) 58%, rgba(18, 40, 60, 0.92));
}

.page-faq .faq-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.4;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-cta p {
  margin: 0 0 22px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-step {
    grid-template-columns: 64px 1fr;
    gap: 20px;
    padding: 22px 24px;
  }

  .page-faq .faq-step-idx {
    font-size: 26px;
  }

  .page-faq .faq-check {
    grid-template-columns: 36px 1fr;
    gap: 16px;
    padding: 18px 22px;
  }

  .page-faq .faq-flow-item {
    grid-template-columns: 56px 1fr;
    gap: 18px;
  }

  .page-faq .faq-flow-item::before {
    left: 27px;
  }

  .page-faq .faq-flow-node {
    width: 56px;
  }

  .page-faq .faq-devicelist li {
    grid-template-columns: 150px 1fr;
    gap: 18px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    column-gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }

  .page-faq .faq-kicker {
    grid-column: 1 / -1;
  }

  .page-faq .faq-hero h1 {
    grid-column: 1;
    margin-bottom: 0;
  }

  .page-faq .faq-lede {
    grid-column: 2;
    margin-top: 6px;
  }

  .page-faq .faq-jump {
    grid-column: 1 / -1;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-step {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .page-faq .faq-step-idx {
    border-right: none;
    border-bottom: 1px solid var(--faq-line-strong);
    padding-right: 0;
    padding-bottom: 8px;
    font-size: 24px;
  }

  .page-faq .faq-steps .faq-drawer {
    display: none;
  }

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

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

  .page-faq .faq-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 3vw, 48px);
  }

  .page-faq .faq-flow-item {
    padding-bottom: 26px;
  }

  .page-faq .faq-flow-item:nth-last-child(2)::before {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .faq-drawer > summary::after {
    transition: none;
  }
}