.page-faq {
  --faq-rule: rgba(16, 27, 51, 0.14);
  --faq-soft: rgba(16, 27, 51, 0.07);
  --faq-card: #FBF7F0;
  --faq-glow: rgba(232, 122, 46, 0.22);
}

/* ---------- 首屏 ---------- */
.page-faq .guide-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 90% 6%, rgba(232, 122, 46, 0.3), transparent 60%),
    linear-gradient(158deg, var(--indigo) 0%, var(--indigo-2) 56%, var(--mist) 100%);
  color: var(--paper);
  border-bottom: 3px solid var(--orange);
}

.page-faq .guide-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 180px;
  height: 100%;
  background-image: repeating-linear-gradient(90deg, rgba(216, 203, 184, 0.42) 0 1px, transparent 1px 20px);
  opacity: 0.3;
  pointer-events: none;
}

.page-faq .guide-hero__inner {
  position: relative;
  z-index: 1;
  padding-block: 30px 38px;
}

.page-faq .guide-kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange-soft);
  text-transform: uppercase;
}

.page-faq h1 {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 6.4vw, 44px);
  line-height: 1.22;
  letter-spacing: 0.01em;
}

.page-faq .guide-lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.9;
  color: rgba(244, 239, 230, 0.86);
}

.page-faq .quick-path {
  list-style: none;
  margin: 28px 0 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: rgba(244, 239, 230, 0.24);
  border: 1px solid rgba(244, 239, 230, 0.2);
}

.page-faq .quick-path > li {
  display: grid;
  gap: 6px;
  padding: 16px 16px 18px;
  background: rgba(10, 16, 32, 0.46);
}

.page-faq .quick-path__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-faq .quick-path strong {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .quick-path span:last-child {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 239, 230, 0.78);
}

.page-faq .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.07em;
  color: rgba(244, 239, 230, 0.66);
}

/* ---------- 场景快捷标签 ---------- */
.page-faq .chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 4px;
  padding: 0;
}

.page-faq .chips a {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid var(--faq-rule);
  background: var(--faq-card);
  font-family: var(--font-heading);
  font-size: 13px;
  color: var(--indigo);
  text-decoration: none;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background 160ms var(--ease);
}

.page-faq .chips a:hover,
.page-faq .chips a:focus-visible {
  border-color: var(--orange);
  color: var(--brick);
  background: #ffffff;
}

/* ---------- 主体两栏 ---------- */
.page-faq .guide-body {
  padding-block: 12px 56px;
}

.page-faq .guide-toc {
  display: none;
}

.page-faq .guide-main {
  min-width: 0;
}

.page-faq .guide-section {
  padding-block: 30px 8px;
  border-top: 1px solid var(--faq-rule);
  scroll-margin-top: 20px;
}

.page-faq .guide-section:first-child {
  border-top: 0;
  padding-top: 16px;
}

.page-faq .sec-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.page-faq .sec-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--brick);
  padding-top: 3px;
}

.page-faq .sec-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.35;
  color: var(--ink);
}

.page-faq .sec-lead {
  margin: 0 0 20px;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: #24304a;
}

/* ---------- 01 三处入口 ---------- */
.page-faq .start-grid {
  display: grid;
  gap: 20px;
}

.page-faq .place-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .place-list > li {
  position: relative;
  padding-left: 16px;
  border-left: 2px solid var(--sand);
}

.page-faq .place-list > li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--orange);
}

.page-faq .place-list strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  color: var(--indigo);
  margin-bottom: 4px;
}

.page-faq .place-list p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.85;
  color: #2c3a52;
}

.page-faq .guide-figure {
  margin: 0;
  border: 1px solid var(--faq-rule);
  background: var(--sand);
}

.page-faq .guide-figure img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-faq .guide-figure--wide img {
  aspect-ratio: 3 / 2;
}

.page-faq .cap {
  display: block;
  padding: 8px 12px 9px;
  background: var(--faq-card);
  border-top: 1px solid var(--faq-rule);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

/* ---------- 02 决策树 ---------- */
.page-faq .tree {
  list-style: none;
  margin: 0;
  padding: 0 0 0 18px;
  border-left: 2px solid var(--sand);
}

.page-faq .tree__row {
  display: grid;
  gap: 6px;
  position: relative;
  padding: 14px 0;
  border-bottom: 1px dashed var(--faq-rule);
}

.page-faq .tree__row::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 20px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--orange);
}

.page-faq .tree__q {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .tree__arrow {
  display: none;
  font-family: var(--font-mono);
  color: var(--orange);
  text-align: center;
}

.page-faq .tree__a {
  display: grid;
  gap: 3px;
  padding: 8px 10px;
  border: 1px solid var(--mist);
  background: var(--faq-card);
}

.page-faq .tree__a a {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .tree__a a:hover,
.page-faq .tree__a a:focus-visible {
  color: var(--brick);
  border-bottom-color: var(--brick);
}

.page-faq .tree__a em {
  font-style: normal;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.7;
  color: #45536b;
}

.page-faq .tree-note {
  margin: 18px 0 0;
  padding: 12px 14px;
  background: var(--faq-soft);
  border-left: 3px solid var(--orange-soft);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.8;
  color: #2c3a52;
}

.page-faq .tree-note a,
.page-faq .step-list a,
.page-faq .qa__body a,
.page-faq .help-slab a {
  color: var(--mist);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .tree-note a:hover,
.page-faq .step-list a:hover,
.page-faq .qa__body a:hover {
  color: var(--brick);
}

/* ---------- 03 家庭页面 ---------- */
.page-faq .family-grid {
  display: grid;
  gap: 20px;
}

.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .step-list > li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 14px;
  background: var(--faq-card);
  border: 1px solid var(--faq-rule);
}

.page-faq .step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
  padding-top: 2px;
}

.page-faq .step-list strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  color: var(--indigo);
  margin-bottom: 4px;
}

.page-faq .step-list p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.8;
  color: #2c3a52;
}

.page-faq .pin-card {
  position: relative;
  padding: 18px 18px 20px;
  background:
    linear-gradient(150deg, rgba(242, 162, 92, 0.22), rgba(244, 239, 230, 0.7));
  border: 1px solid rgba(232, 122, 46, 0.45);
  box-shadow: var(--shadow-note);
}

.page-faq .pin-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--brick));
}

.page-faq .pin-card__title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  color: var(--brick);
}

.page-faq .pin-card p {
  margin: 0 0 10px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.8;
  color: #2c3a52;
}

.page-faq .pin-card__meta {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed rgba(185, 78, 59, 0.35);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--steel);
}

/* ---------- 04 跨端 ---------- */
.page-faq .device-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.page-faq .device {
  padding: 14px 14px 16px;
  border: 1px solid var(--mist);
  background: var(--faq-card);
}

.page-faq .device--mobile {
  border-style: dashed;
}

.page-faq .device__name {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--indigo);
  text-transform: uppercase;
}

.page-faq .device__map {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .device__map li {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.75;
  color: #2c3a52;
}

.page-faq .dot {
  width: 8px;
  height: 8px;
  margin-top: 7px;
  display: block;
}

.page-faq .dot--orange { background: var(--orange); }
.page-faq .dot--blue { background: var(--mist); }
.page-faq .dot--brick { background: var(--brick); }

.page-faq .trouble {
  padding: 16px;
  background: var(--faq-soft);
  border-left: 3px solid var(--mist);
  margin-bottom: 20px;
}

.page-faq .trouble__title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  color: var(--indigo);
}

.page-faq .trouble ol {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.8;
  color: #2c3a52;
}

/* ---------- 05 问答 ---------- */
.page-faq .qa-list {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-rule);
  background: var(--faq-card);
}

.page-faq .qa summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 14px 46px 14px 16px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
}

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

.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .qa[open] summary::after {
  content: "–";
  color: var(--brick);
}

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

.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible {
  background: #ffffff;
}

.page-faq .qa__body {
  padding: 0 16px 16px;
}

.page-faq .qa__body p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.9;
  color: #2c3a52;
}

/* ---------- 06 联系 ---------- */
.page-faq .help-slab {
  padding: 20px 18px 22px;
  background: var(--sand);
  border-left: 4px solid var(--brick);
}

.page-faq .help-slab__lead {
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: #24304a;
}

.page-faq .help-list {
  margin: 0 0 16px;
  display: grid;
  gap: 10px;
}

.page-faq .help-list > div {
  display: grid;
  gap: 2px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(16, 27, 51, 0.22);
}

.page-faq .help-list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--brick);
}

.page-faq .help-list dd {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-faq .help-slab__note {
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.85;
  color: #3a4557;
}

.page-faq .help-slab__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .guide-hero__inner {
    padding-block: 42px 52px;
  }

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

  .page-faq .start-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

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

  .page-faq .family-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }

  .page-faq .help-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 20px;
  }

  .page-faq .sec-title {
    font-size: 23px;
  }
}

@media (min-width: 900px) {
  .page-faq .guide-body {
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
    padding-block: 20px 72px;
  }

  .page-faq .guide-toc {
    display: block;
    position: sticky;
    top: 28px;
    padding-top: 4px;
  }

  .page-faq .toc-title {
    margin: 0 0 12px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--steel);
  }

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

  .page-faq .toc-list a {
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 8px;
    align-items: baseline;
    padding: 8px 8px 8px 12px;
    border-left: 2px solid var(--sand);
    font-family: var(--font-heading);
    font-size: 13.5px;
    line-height: 1.5;
    color: var(--indigo);
    text-decoration: none;
    transition: border-color 160ms var(--ease), background 160ms var(--ease), color 160ms var(--ease);
  }

  .page-faq .toc-list a:hover,
  .page-faq .toc-list a:focus-visible {
    border-left-color: var(--orange);
    background: var(--faq-card);
    color: var(--brick);
  }

  .page-faq .toc-list span {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--brick);
  }

  .page-faq .chips {
    margin-bottom: 0;
  }

  .page-faq .guide-section {
    padding-block: 40px 12px;
    scroll-margin-top: 28px;
  }

  .page-faq .sec-title {
    font-size: 26px;
  }

  .page-faq .tree__row {
    grid-template-columns: minmax(0, 1.25fr) 30px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
  }

  .page-faq .tree__arrow {
    display: block;
  }

  .page-faq .tree__row::before {
    top: 50%;
    transform: translateY(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .chips a,
  .page-faq .toc-list a {
    transition: none;
  }
}