.page-faq{
  --faq-rule: rgba(36,26,18,.15);
  --faq-rule-strong: rgba(36,26,18,.32);
  --faq-grid-line: rgba(199,164,122,.24);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
}
.page-faq *{ box-sizing: border-box; }
.page-faq p{ margin: 0; }
.page-faq ul,
.page-faq ol{ margin: 0; padding: 0; list-style: none; }
.page-faq h1,
.page-faq h2,
.page-faq h3{
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: .01em;
  margin: 0;
  color: var(--ink);
}
.page-faq a{ color: var(--jade); text-decoration: none; }
.page-faq a:hover{ text-decoration: underline; text-underline-offset: 3px; }
.page-faq .mono{ font-family: var(--font-mono); }

/* 顶部朱砂提示条 */
.faq-alert{ background: var(--cinnabar); color: var(--warm-white); border-bottom: 3px solid var(--cinnabar-deep); }
.faq-alert-inner{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.faq-alert-text{
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--warm-white);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
}
.faq-alert-text .status-dot{
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warm-white);
  box-shadow: 0 0 0 3px rgba(255,252,245,.34);
}
.faq-alert-links{ display: flex; flex-wrap: wrap; gap: 8px; }
.page-faq .faq-alert-link{
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 16px;
  border: 1px solid rgba(255,252,245,.66);
  color: var(--warm-white);
  font-size: 13px;
  font-weight: 700;
  transition: background .2s ease, border-color .2s ease;
}
.page-faq .faq-alert-link:hover{ background: rgba(255,252,245,.18); text-decoration: none; }
.page-faq .faq-alert-link--solid{ background: var(--wood); border-color: var(--wood); }
.page-faq .faq-alert-link--solid:hover{ background: var(--ink); border-color: var(--ink); }

/* 首屏 */
.faq-hero{
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 88px 88px;
  border-bottom: 3px solid var(--gold);
}
.faq-hero-inner{
  display: grid;
  gap: 26px;
  padding-top: 26px;
  padding-bottom: 36px;
}
.faq-hero-copy{ display: grid; gap: 12px; align-content: start; }
.faq-hero-copy .eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--ochre);
  text-transform: uppercase;
}
.faq-hero h1{
  font-size: clamp(30px, 8vw, 52px);
  font-weight: 900;
  border-left: 6px solid var(--gold);
  padding-left: 16px;
}
.faq-hero .lede{
  font-size: 16px;
  color: rgba(36,26,18,.86);
  max-width: 46ch;
}
.faq-hero-actions{ display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }

.faq-hero-media{
  margin: 0;
  background: var(--warm-white);
  border: 1px solid var(--faq-rule-strong);
  padding: 8px 8px 10px;
}
.faq-hero-media img{ display: block; width: 100%; height: auto; object-fit: cover; }
.faq-hero-media figcaption{
  padding: 10px 4px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

/* 章节通用 */
.faq-section{ padding: 40px 0 44px; border-bottom: 1px solid var(--faq-rule); }
.faq-band-sand{ background: var(--sand); }
.faq-band-white{ background: var(--warm-white); }
.faq-head{ display: grid; gap: 10px; margin-bottom: 24px; }
.faq-num{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--gold);
}
.faq-head h2{ font-size: clamp(24px, 5.6vw, 36px); }
.faq-head h2::after{
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  background: var(--gold);
  margin-top: 12px;
}
.faq-sub{ font-size: 16px; color: rgba(36,26,18,.82); max-width: 64ch; }

/* 三步自查 */
.faq-steps-list{ display: grid; }
.faq-step{
  display: grid;
  gap: 12px;
  padding: 20px 0 22px;
  border-top: 1px solid var(--faq-rule-strong);
}
.faq-step:last-child{ border-bottom: 1px solid var(--faq-rule-strong); }
.faq-step-no{ display: flex; align-items: center; gap: 12px; }
.faq-step-no .mono{ font-size: 32px; font-weight: 700; line-height: 1; color: var(--gold); }
.faq-step-body{ display: grid; gap: 8px; }
.faq-step-body h3{ font-size: 20px; }
.faq-step-body p{ font-size: 15px; color: rgba(36,26,18,.86); }
.faq-checks{ display: grid; gap: 6px; margin-top: 2px; }
.faq-checks li{
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.7;
}
.faq-checks li::before{
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--jade);
  font-weight: 700;
}

/* 按设备分列的原因 */
.faq-reasons{ display: grid; gap: 14px; }
.faq-reason{
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 18px 18px 20px;
  background: var(--warm-white);
  border: 1px solid var(--faq-rule);
  border-top: 4px solid var(--ochre);
}
.faq-reason h3{ font-size: 19px; color: var(--ochre); }
.faq-reason dl{ margin: 0; display: grid; gap: 4px; }
.faq-reason dt{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold);
  margin-top: 6px;
}
.faq-reason dd{ margin: 0; font-size: 14.5px; line-height: 1.72; color: rgba(36,26,18,.88); }

/* 使用记录账本 */
.faq-ledger-layout{ display: grid; gap: 24px; }
.faq-ledger{ display: grid; gap: 10px; }
.faq-ledger-row{
  display: grid;
  gap: 4px;
  background: var(--paper);
  border: 1px solid var(--faq-rule);
  border-left: 4px solid var(--rock);
  padding: 14px 16px;
  transition: border-left-color .2s ease, background .2s ease;
}
.faq-ledger-row:hover{ border-left-color: var(--cinnabar); background: var(--sand); }
.faq-ledger-date{
  font-size: 13px;
  font-weight: 700;
  color: var(--ochre);
  letter-spacing: .04em;
}
.faq-ledger-type{ font-size: 13px; font-weight: 700; color: var(--ink); }
.faq-ledger-device{
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--mist);
}
.faq-ledger-note{ font-size: 14px; color: rgba(36,26,18,.88); }
.faq-tag{
  justify-self: start;
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.7;
  border: 1px solid currentColor;
  white-space: nowrap;
}
.faq-tag--done{ color: var(--jade); }
.faq-tag--handled{ color: var(--mist); }
.faq-tag--doing{ color: var(--ochre); }

.faq-ledger-media{ margin: 0; display: grid; gap: 8px; }
.faq-ledger-media img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-rule-strong);
}
.faq-ledger-media figcaption{
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  color: var(--mist);
}
.faq-ledger-foot{
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px dashed var(--faq-rule-strong);
  font-size: 14px;
  color: rgba(36,26,18,.85);
}

/* 常见问题 */
.faq-q-layout{ display: grid; gap: 22px; }
.faq-index{
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-index-link{
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 14px;
  background: var(--wood);
  color: var(--warm-white);
  font-size: 14px;
  font-weight: 700;
  border-left: 3px solid var(--gold);
  white-space: nowrap;
  transition: background .2s ease, border-left-color .2s ease;
}
.page-faq .faq-index-link:hover{ background: var(--ochre); border-left-color: var(--warm-white); text-decoration: none; }
.page-faq .faq-index-link .mono{ font-size: 12px; color: var(--gold-lite); }

.faq-q-body{ display: grid; gap: 28px; min-width: 0; }
.faq-cat{ scroll-margin-top: 24px; display: grid; gap: 10px; }
.faq-cat h3{ font-size: 20px; display: flex; align-items: baseline; gap: 10px; }
.faq-cat-count{
  font-size: 12px;
  font-weight: 400;
  color: var(--mist);
  letter-spacing: .1em;
}
.faq-item{
  background: var(--paper);
  border: 1px solid var(--faq-rule);
  border-left: 3px solid var(--gold);
  transition: border-left-color .2s ease;
}
.faq-item[open]{ border-left-color: var(--cinnabar); }
.faq-item summary{
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker{ display: none; }
.faq-item summary::after{
  content: "＋";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--gold);
  line-height: 1;
}
.faq-item[open] summary{ background: var(--sand); }
.faq-item[open] summary::after{ content: "－"; color: var(--cinnabar); }
.faq-code{
  flex: none;
  font-size: 12px;
  font-weight: 700;
  color: var(--ochre);
  letter-spacing: .04em;
}
.faq-item-body{ padding: 0 16px 16px; }
.faq-item-body p{ font-size: 14.5px; line-height: 1.75; color: rgba(36,26,18,.88); }

/* 找客服前的准备 */
.faq-prep{ display: grid; gap: 10px; }
.faq-prep-item{
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  background: var(--warm-white);
  border: 1px solid var(--faq-rule);
}
.faq-prep-item .mono{
  font-size: 14px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.6;
}
.faq-prep-item p{ font-size: 14.5px; line-height: 1.7; color: rgba(36,26,18,.88); }
.faq-prep-item strong{ color: var(--ochre); }
.faq-prep-note{
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--paper);
  border-left: 4px solid var(--jade);
  font-size: 14px;
  line-height: 1.72;
  color: rgba(36,26,18,.88);
}

/* 客服入口 */
.faq-contact{ background: var(--wood); color: var(--warm-white); }
.faq-contact-inner{
  display: grid;
  gap: 24px;
  padding-top: 38px;
  padding-bottom: 40px;
}
.faq-contact-copy{ display: grid; gap: 12px; align-content: start; }
.faq-contact h2{ color: var(--warm-white); font-size: clamp(24px, 5.4vw, 34px); }
.faq-contact-copy p{ color: rgba(255,252,245,.86); font-size: 15.5px; }
.faq-contact-actions{ display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.faq-contact-card{
  background: var(--ink);
  border: 1px solid rgba(246,235,221,.2);
  border-left: 4px solid var(--cinnabar);
  padding: 18px 18px 20px;
  display: grid;
  gap: 12px;
}
.faq-contact-list{ margin: 0; display: grid; gap: 10px; }
.faq-contact-row{ display: grid; gap: 4px; }
.faq-contact-row dt{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold-lite);
}
.faq-contact-row dd{ margin: 0; font-size: 14.5px; line-height: 1.6; color: var(--warm-white); }
.page-faq .faq-copy{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 16px;
  background: var(--cinnabar);
  border: 1px solid var(--cinnabar);
  color: var(--warm-white);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease;
}
.page-faq .faq-copy:hover{ background: var(--cinnabar-deep); border-color: var(--cinnabar-deep); }
.page-faq .faq-copy[data-copied]{ background: var(--jade); border-color: var(--jade); }
.faq-copy-status{
  min-height: 20px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--gold-lite);
}
.faq-contact-note{
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255,252,245,.72);
  border-top: 1px dashed rgba(246,235,221,.24);
  padding-top: 12px;
}

@media (min-width: 620px){
  .faq-prep{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .faq-ledger-row{
    grid-template-columns: 120px 84px 1fr auto;
    align-items: center;
    column-gap: 14px;
  }
  .faq-ledger-date{ grid-row: span 2; }
  .faq-ledger-device{ grid-column: 3; }
  .faq-ledger-note{ grid-column: 3; }
  .faq-tag{ grid-column: 4; grid-row: 1 / span 2; justify-self: end; }
}

@media (min-width: 860px){
  .faq-hero-inner{
    grid-template-columns: 1.05fr .95fr;
    gap: 48px;
    align-items: start;
    padding-top: 42px;
    padding-bottom: 52px;
  }
  .faq-hero .lede{ font-size: 17px; }
  .faq-section{ padding: 56px 0 60px; }
  .faq-step{ grid-template-columns: 96px 1fr; column-gap: 28px; align-items: start; }
  .faq-step-no{ flex-direction: column; align-items: flex-start; gap: 8px; }
  .faq-step-body h3{ font-size: 22px; }
  .faq-reasons{ grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
  .faq-ledger-layout{ grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; align-items: start; }
  .faq-contact-inner{
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 48px;
    align-items: center;
    padding-top: 52px;
    padding-bottom: 56px;
  }
}

@media (min-width: 960px){
  .faq-q-layout{ grid-template-columns: 188px minmax(0, 1fr); gap: 40px; align-items: start; }
  .faq-index{
    flex-direction: column;
    overflow: visible;
    position: sticky;
    top: 24px;
    padding-bottom: 0;
  }
  .page-faq .faq-index-link{
    width: 100%;
    justify-content: space-between;
    white-space: normal;
    border-left-width: 3px;
  }
  .faq-cat h3{ font-size: 22px; }
  .faq-item summary{ font-size: 15.5px; padding: 16px 18px; }
  .faq-item-body{ padding: 0 18px 18px; }
}

@media (prefers-reduced-motion: reduce){
  .page-faq *{ transition: none !important; }
}
<<<END>>>